From 967fc04671feea4dbf780c9e55a0bc8fcf68a14e Mon Sep 17 00:00:00 2001
From: Gregory Haskins <ghaskins@novell.com>
Date: Mon, 29 Dec 2008 09:39:52 -0500
Subject: sched: add sched_class->needs_post_schedule() member

We currently run class->post_schedule() outside of the rq->lock, which
means that we need to test for the need to post_schedule outside of
the lock to avoid a forced reacquistion.  This is currently not a problem
as we only look at rq->rt.overloaded.  However, we want to enhance this
going forward to look at more state to reduce the need to post_schedule to
a bare minimum set.  Therefore, we introduce a new member-func called
needs_post_schedule() which tests for the post_schedule condtion without
actually performing the work.  Therefore it is safe to call this
function before the rq->lock is released, because we are guaranteed not
to drop the lock at an intermediate point (such as what post_schedule()
may do).

We will use this later in the series

[ rostedt: removed paranoid BUG_ON ]

Signed-off-by: Gregory Haskins <ghaskins@novell.com>
---
 include/linux/sched.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/linux/sched.h b/include/linux/sched.h
index e5f928a079e8..836a86c32a65 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1012,6 +1012,7 @@ struct sched_class {
 			      struct rq *busiest, struct sched_domain *sd,
 			      enum cpu_idle_type idle);
 	void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
+	int (*needs_post_schedule) (struct rq *this_rq);
 	void (*post_schedule) (struct rq *this_rq);
 	void (*task_wake_up) (struct rq *this_rq, struct task_struct *task);
 
-- 
cgit v1.2.3


From 4075134e40804821f90866d7de56802e4dcecb1e Mon Sep 17 00:00:00 2001
From: Gregory Haskins <ghaskins@novell.com>
Date: Mon, 29 Dec 2008 09:39:53 -0500
Subject: plist: fix PLIST_NODE_INIT to work with debug enabled

It seems that PLIST_NODE_INIT breaks if used and DEBUG_PI_LIST is defined.
Since there are no current users of PLIST_NODE_INIT, this has gone
undetected.  This patch fixes the build issue that enables the
DEBUG_PI_LIST later in the series when we use it in init_task.h

Signed-off-by: Gregory Haskins <ghaskins@novell.com>
---
 include/linux/plist.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/plist.h b/include/linux/plist.h
index 85de2f055874..45926d77d6ac 100644
--- a/include/linux/plist.h
+++ b/include/linux/plist.h
@@ -96,6 +96,10 @@ struct plist_node {
 # define PLIST_HEAD_LOCK_INIT(_lock)
 #endif
 
+#define _PLIST_HEAD_INIT(head)				\
+	.prio_list = LIST_HEAD_INIT((head).prio_list),	\
+	.node_list = LIST_HEAD_INIT((head).node_list)
+
 /**
  * PLIST_HEAD_INIT - static struct plist_head initializer
  * @head:	struct plist_head variable name
@@ -103,8 +107,7 @@ struct plist_node {
  */
 #define PLIST_HEAD_INIT(head, _lock)			\
 {							\
-	.prio_list = LIST_HEAD_INIT((head).prio_list),	\
-	.node_list = LIST_HEAD_INIT((head).node_list),	\
+        _PLIST_HEAD_INIT(head),                         \
 	PLIST_HEAD_LOCK_INIT(&(_lock))			\
 }
 
@@ -116,7 +119,7 @@ struct plist_node {
 #define PLIST_NODE_INIT(node, __prio)			\
 {							\
 	.prio  = (__prio),				\
-	.plist = PLIST_HEAD_INIT((node).plist, NULL),	\
+	.plist = { _PLIST_HEAD_INIT((node).plist) }, 	\
 }
 
 /**
-- 
cgit v1.2.3


From 917b627d4d981dc614519d7b34ea31a976b14e12 Mon Sep 17 00:00:00 2001
From: Gregory Haskins <ghaskins@novell.com>
Date: Mon, 29 Dec 2008 09:39:53 -0500
Subject: sched: create "pushable_tasks" list to limit pushing to one attempt

The RT scheduler employs a "push/pull" design to actively balance tasks
within the system (on a per disjoint cpuset basis).  When a task is
awoken, it is immediately determined if there are any lower priority
cpus which should be preempted.  This is opposed to the way normal
SCHED_OTHER tasks behave, which will wait for a periodic rebalancing
operation to occur before spreading out load.

When a particular RQ has more than 1 active RT task, it is said to
be in an "overloaded" state.  Once this occurs, the system enters
the active balancing mode, where it will try to push the task away,
or persuade a different cpu to pull it over.  The system will stay
in this state until the system falls back below the <= 1 queued RT
task per RQ.

However, the current implementation suffers from a limitation in the
push logic.  Once overloaded, all tasks (other than current) on the
RQ are analyzed on every push operation, even if it was previously
unpushable (due to affinity, etc).  Whats more, the operation stops
at the first task that is unpushable and will not look at items
lower in the queue.  This causes two problems:

1) We can have the same tasks analyzed over and over again during each
   push, which extends out the fast path in the scheduler for no
   gain.  Consider a RQ that has dozens of tasks that are bound to a
   core.  Each one of those tasks will be encountered and skipped
   for each push operation while they are queued.

2) There may be lower-priority tasks under the unpushable task that
   could have been successfully pushed, but will never be considered
   until either the unpushable task is cleared, or a pull operation
   succeeds.  The net result is a potential latency source for mid
   priority tasks.

This patch aims to rectify these two conditions by introducing a new
priority sorted list: "pushable_tasks".  A task is added to the list
each time a task is activated or preempted.  It is removed from the
list any time it is deactivated, made current, or fails to push.

This works because a task only needs to be attempted to push once.
After an initial failure to push, the other cpus will eventually try to
pull the task when the conditions are proper.  This also solves the
problem that we don't completely analyze all tasks due to encountering
an unpushable tasks.  Now every task will have a push attempted (when
appropriate).

This reduces latency both by shorting the critical section of the
rq->lock for certain workloads, and by making sure the algorithm
considers all eligible tasks in the system.

[ rostedt: added a couple more BUG_ONs ]

Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Acked-by: Steven Rostedt <srostedt@redhat.com>
---
 include/linux/init_task.h |   1 +
 include/linux/sched.h     |   1 +
 kernel/sched.c            |   4 ++
 kernel/sched_rt.c         | 119 +++++++++++++++++++++++++++++++++++++++-------
 4 files changed, 107 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 23fd8909b9e5..6851225f44a7 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -140,6 +140,7 @@ extern struct group_info init_groups;
 		.nr_cpus_allowed = NR_CPUS,				\
 	},								\
 	.tasks		= LIST_HEAD_INIT(tsk.tasks),			\
+	.pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO), \
 	.ptraced	= LIST_HEAD_INIT(tsk.ptraced),			\
 	.ptrace_entry	= LIST_HEAD_INIT(tsk.ptrace_entry),		\
 	.real_parent	= &tsk,						\
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 836a86c32a65..440cabb2d432 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1179,6 +1179,7 @@ struct task_struct {
 #endif
 
 	struct list_head tasks;
+	struct plist_node pushable_tasks;
 
 	struct mm_struct *mm, *active_mm;
 
diff --git a/kernel/sched.c b/kernel/sched.c
index 3acbad8991a2..24ab80c28765 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -471,6 +471,7 @@ struct rt_rq {
 #ifdef CONFIG_SMP
 	unsigned long rt_nr_migratory;
 	int overloaded;
+	struct plist_head pushable_tasks;
 #endif
 	int rt_throttled;
 	u64 rt_time;
@@ -2481,6 +2482,8 @@ void sched_fork(struct task_struct *p, int clone_flags)
 	/* Want to start with kernel preemption disabled. */
 	task_thread_info(p)->preempt_count = 1;
 #endif
+	plist_node_init(&p->pushable_tasks, MAX_PRIO);
+
 	put_cpu();
 }
 
@@ -8237,6 +8240,7 @@ static void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq)
 #ifdef CONFIG_SMP
 	rt_rq->rt_nr_migratory = 0;
 	rt_rq->overloaded = 0;
+	plist_head_init(&rq->rt.pushable_tasks, &rq->lock);
 #endif
 
 	rt_rq->rt_time = 0;
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index b0b6ea4ed674..fe9da6084c87 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -49,6 +49,24 @@ static void update_rt_migration(struct rq *rq)
 		rq->rt.overloaded = 0;
 	}
 }
+
+static void enqueue_pushable_task(struct rq *rq, struct task_struct *p)
+{
+	plist_del(&p->pushable_tasks, &rq->rt.pushable_tasks);
+	plist_node_init(&p->pushable_tasks, p->prio);
+	plist_add(&p->pushable_tasks, &rq->rt.pushable_tasks);
+}
+
+static void dequeue_pushable_task(struct rq *rq, struct task_struct *p)
+{
+	plist_del(&p->pushable_tasks, &rq->rt.pushable_tasks);
+}
+
+#else
+
+#define enqueue_pushable_task(rq, p) do { } while (0)
+#define dequeue_pushable_task(rq, p) do { } while (0)
+
 #endif /* CONFIG_SMP */
 
 static inline struct task_struct *rt_task_of(struct sched_rt_entity *rt_se)
@@ -751,6 +769,9 @@ static void enqueue_task_rt(struct rq *rq, struct task_struct *p, int wakeup)
 
 	enqueue_rt_entity(rt_se);
 
+	if (!task_current(rq, p) && p->rt.nr_cpus_allowed > 1)
+		enqueue_pushable_task(rq, p);
+
 	inc_cpu_load(rq, p->se.load.weight);
 }
 
@@ -761,6 +782,8 @@ static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep)
 	update_curr_rt(rq);
 	dequeue_rt_entity(rt_se);
 
+	dequeue_pushable_task(rq, p);
+
 	dec_cpu_load(rq, p->se.load.weight);
 }
 
@@ -911,7 +934,7 @@ static struct sched_rt_entity *pick_next_rt_entity(struct rq *rq,
 	return next;
 }
 
-static struct task_struct *pick_next_task_rt(struct rq *rq)
+static struct task_struct *_pick_next_task_rt(struct rq *rq)
 {
 	struct sched_rt_entity *rt_se;
 	struct task_struct *p;
@@ -933,6 +956,18 @@ static struct task_struct *pick_next_task_rt(struct rq *rq)
 
 	p = rt_task_of(rt_se);
 	p->se.exec_start = rq->clock;
+
+	return p;
+}
+
+static struct task_struct *pick_next_task_rt(struct rq *rq)
+{
+	struct task_struct *p = _pick_next_task_rt(rq);
+
+	/* The running task is never eligible for pushing */
+	if (p)
+		dequeue_pushable_task(rq, p);
+
 	return p;
 }
 
@@ -940,6 +975,13 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
 {
 	update_curr_rt(rq);
 	p->se.exec_start = 0;
+
+	/*
+	 * The previous task needs to be made eligible for pushing
+	 * if it is still active
+	 */
+	if (p->se.on_rq && p->rt.nr_cpus_allowed > 1)
+		enqueue_pushable_task(rq, p);
 }
 
 #ifdef CONFIG_SMP
@@ -1116,6 +1158,31 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq)
 	return lowest_rq;
 }
 
+static inline int has_pushable_tasks(struct rq *rq)
+{
+	return !plist_head_empty(&rq->rt.pushable_tasks);
+}
+
+static struct task_struct *pick_next_pushable_task(struct rq *rq)
+{
+	struct task_struct *p;
+
+	if (!has_pushable_tasks(rq))
+		return NULL;
+
+	p = plist_first_entry(&rq->rt.pushable_tasks,
+			      struct task_struct, pushable_tasks);
+
+	BUG_ON(rq->cpu != task_cpu(p));
+	BUG_ON(task_current(rq, p));
+	BUG_ON(p->rt.nr_cpus_allowed <= 1);
+
+	BUG_ON(!p->se.on_rq);
+	BUG_ON(!rt_task(p));
+
+	return p;
+}
+
 /*
  * If the current CPU has more than one RT task, see if the non
  * running task can migrate over to a CPU that is running a task
@@ -1125,13 +1192,12 @@ static int push_rt_task(struct rq *rq)
 {
 	struct task_struct *next_task;
 	struct rq *lowest_rq;
-	int ret = 0;
 	int paranoid = RT_MAX_TRIES;
 
 	if (!rq->rt.overloaded)
 		return 0;
 
-	next_task = pick_next_highest_task_rt(rq, -1);
+	next_task = pick_next_pushable_task(rq);
 	if (!next_task)
 		return 0;
 
@@ -1163,12 +1229,19 @@ static int push_rt_task(struct rq *rq)
 		 * so it is possible that next_task has changed.
 		 * If it has, then try again.
 		 */
-		task = pick_next_highest_task_rt(rq, -1);
+		task = pick_next_pushable_task(rq);
 		if (unlikely(task != next_task) && task && paranoid--) {
 			put_task_struct(next_task);
 			next_task = task;
 			goto retry;
 		}
+
+		/*
+		 * Once we have failed to push this task, we will not
+		 * try again, since the other cpus will pull from us
+		 * when they are ready
+		 */
+		dequeue_pushable_task(rq, next_task);
 		goto out;
 	}
 
@@ -1180,23 +1253,12 @@ static int push_rt_task(struct rq *rq)
 
 	double_unlock_balance(rq, lowest_rq);
 
-	ret = 1;
 out:
 	put_task_struct(next_task);
 
-	return ret;
+	return 1;
 }
 
-/*
- * TODO: Currently we just use the second highest prio task on
- *       the queue, and stop when it can't migrate (or there's
- *       no more RT tasks).  There may be a case where a lower
- *       priority RT task has a different affinity than the
- *       higher RT task. In this case the lower RT task could
- *       possibly be able to migrate where as the higher priority
- *       RT task could not.  We currently ignore this issue.
- *       Enhancements are welcome!
- */
 static void push_rt_tasks(struct rq *rq)
 {
 	/* push_rt_task will return true if it moved an RT */
@@ -1295,7 +1357,7 @@ static void pre_schedule_rt(struct rq *rq, struct task_struct *prev)
  */
 static int needs_post_schedule_rt(struct rq *rq)
 {
-	return rq->rt.overloaded ? 1 : 0;
+	return has_pushable_tasks(rq);
 }
 
 static void post_schedule_rt(struct rq *rq)
@@ -1317,7 +1379,7 @@ static void task_wake_up_rt(struct rq *rq, struct task_struct *p)
 {
 	if (!task_running(rq, p) &&
 	    !test_tsk_need_resched(rq->curr) &&
-	    rq->rt.overloaded &&
+	    has_pushable_tasks(rq) &&
 	    p->rt.nr_cpus_allowed > 1)
 		push_rt_tasks(rq);
 }
@@ -1354,6 +1416,24 @@ static void set_cpus_allowed_rt(struct task_struct *p,
 	if (p->se.on_rq && (weight != p->rt.nr_cpus_allowed)) {
 		struct rq *rq = task_rq(p);
 
+		if (!task_current(rq, p)) {
+			/*
+			 * Make sure we dequeue this task from the pushable list
+			 * before going further.  It will either remain off of
+			 * the list because we are no longer pushable, or it
+			 * will be requeued.
+			 */
+			if (p->rt.nr_cpus_allowed > 1)
+				dequeue_pushable_task(rq, p);
+
+			/*
+			 * Requeue if our weight is changing and still > 1
+			 */
+			if (weight > 1)
+				enqueue_pushable_task(rq, p);
+
+		}
+
 		if ((p->rt.nr_cpus_allowed <= 1) && (weight > 1)) {
 			rq->rt.rt_nr_migratory++;
 		} else if ((p->rt.nr_cpus_allowed > 1) && (weight <= 1)) {
@@ -1538,6 +1618,9 @@ static void set_curr_task_rt(struct rq *rq)
 	struct task_struct *p = rq->curr;
 
 	p->se.exec_start = rq->clock;
+
+	/* The running task is never eligible for pushing */
+	dequeue_pushable_task(rq, p);
 }
 
 static const struct sched_class rt_sched_class = {
-- 
cgit v1.2.3


From bd8a71a7b0f50da9350d202d325c3926ffd6b189 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Sat, 3 Jan 2009 16:56:56 +0000
Subject: ALSA: Reduce boilerplate for new jack types

Use a lookup table rather than explicit code to map input subsystem jack
types into ASoC ones, implemented as suggested by Takashi Iwai.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/jack.h |  3 +++
 sound/core/jack.c    | 44 ++++++++++++++++++++------------------------
 2 files changed, 23 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/include/sound/jack.h b/include/sound/jack.h
index 2e0315cdd0d6..85266a2f5c6f 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -30,6 +30,9 @@ struct input_dev;
 /**
  * Jack types which can be reported.  These values are used as a
  * bitmask.
+ *
+ * Note that this must be kept in sync with the lookup table in
+ * sound/core/jack.c.
  */
 enum snd_jack_types {
 	SND_JACK_HEADPHONE	= 0x0001,
diff --git a/sound/core/jack.c b/sound/core/jack.c
index dd4a12dc09aa..b2da10c9916a 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -23,6 +23,13 @@
 #include <sound/jack.h>
 #include <sound/core.h>
 
+static int jack_types[] = {
+	SW_HEADPHONE_INSERT,
+	SW_MICROPHONE_INSERT,
+	SW_LINEOUT_INSERT,
+	SW_JACK_PHYSICAL_INSERT,
+};
+
 static int snd_jack_dev_free(struct snd_device *device)
 {
 	struct snd_jack *jack = device->device_data;
@@ -79,6 +86,7 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 {
 	struct snd_jack *jack;
 	int err;
+	int i;
 	static struct snd_device_ops ops = {
 		.dev_free = snd_jack_dev_free,
 		.dev_register = snd_jack_dev_register,
@@ -100,18 +108,10 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 
 	jack->type = type;
 
-	if (type & SND_JACK_HEADPHONE)
-		input_set_capability(jack->input_dev, EV_SW,
-				     SW_HEADPHONE_INSERT);
-	if (type & SND_JACK_LINEOUT)
-		input_set_capability(jack->input_dev, EV_SW,
-				     SW_LINEOUT_INSERT);
-	if (type & SND_JACK_MICROPHONE)
-		input_set_capability(jack->input_dev, EV_SW,
-				     SW_MICROPHONE_INSERT);
-	if (type & SND_JACK_MECHANICAL)
-		input_set_capability(jack->input_dev, EV_SW,
-				     SW_JACK_PHYSICAL_INSERT);
+	for (i = 0; i < ARRAY_SIZE(jack_types); i++)
+		if (type & (1 << i))
+			input_set_capability(jack->input_dev, EV_SW,
+					     jack_types[i]);
 
 	err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
 	if (err < 0)
@@ -154,21 +154,17 @@ EXPORT_SYMBOL(snd_jack_set_parent);
  */
 void snd_jack_report(struct snd_jack *jack, int status)
 {
+	int i;
+
 	if (!jack)
 		return;
 
-	if (jack->type & SND_JACK_HEADPHONE)
-		input_report_switch(jack->input_dev, SW_HEADPHONE_INSERT,
-				    status & SND_JACK_HEADPHONE);
-	if (jack->type & SND_JACK_LINEOUT)
-		input_report_switch(jack->input_dev, SW_LINEOUT_INSERT,
-				    status & SND_JACK_LINEOUT);
-	if (jack->type & SND_JACK_MICROPHONE)
-		input_report_switch(jack->input_dev, SW_MICROPHONE_INSERT,
-				    status & SND_JACK_MICROPHONE);
-	if (jack->type & SND_JACK_MECHANICAL)
-		input_report_switch(jack->input_dev, SW_JACK_PHYSICAL_INSERT,
-				    status & SND_JACK_MECHANICAL);
+	for (i = 0; i < ARRAY_SIZE(jack_types); i++) {
+		int testbit = 1 << i;
+		if (jack->type & testbit)
+			input_report_switch(jack->input_dev, jack_types[i],
+					    status & testbit);
+	}
 
 	input_sync(jack->input_dev);
 }
-- 
cgit v1.2.3


From f0402a262e1a4c03fc66b83659823bdcaac3c41a Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 5 Jan 2009 23:59:01 +0900
Subject: generic: add common struct for dma map operations

This adds struct dma_map_ops include/linux/dma-mapping.h, which, is
used to handle multiple sets of dma mapping API.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/dma-mapping.h | 48 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ba9114ec5d3a..d7d090d21031 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -3,6 +3,8 @@
 
 #include <linux/device.h>
 #include <linux/err.h>
+#include <linux/dma-attrs.h>
+#include <linux/scatterlist.h>
 
 /* These definitions mirror those in pci.h, so they can be used
  * interchangeably with their PCI_ counterparts */
@@ -13,6 +15,52 @@ enum dma_data_direction {
 	DMA_NONE = 3,
 };
 
+struct dma_map_ops {
+	void* (*alloc_coherent)(struct device *dev, size_t size,
+				dma_addr_t *dma_handle, gfp_t gfp);
+	void (*free_coherent)(struct device *dev, size_t size,
+			      void *vaddr, dma_addr_t dma_handle);
+	dma_addr_t (*map_page)(struct device *dev, struct page *page,
+			       unsigned long offset, size_t size,
+			       enum dma_data_direction dir,
+			       struct dma_attrs *attrs);
+	void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
+			   size_t size, enum dma_data_direction dir,
+			   struct dma_attrs *attrs);
+	int (*map_sg)(struct device *dev, struct scatterlist *sg,
+		      int nents, enum dma_data_direction dir,
+		      struct dma_attrs *attrs);
+	void (*unmap_sg)(struct device *dev,
+			 struct scatterlist *sg, int nents,
+			 enum dma_data_direction dir,
+			 struct dma_attrs *attrs);
+	void (*sync_single_for_cpu)(struct device *dev,
+				    dma_addr_t dma_handle, size_t size,
+				    enum dma_data_direction dir);
+	void (*sync_single_for_device)(struct device *dev,
+				       dma_addr_t dma_handle, size_t size,
+				       enum dma_data_direction dir);
+	void (*sync_single_range_for_cpu)(struct device *dev,
+					  dma_addr_t dma_handle,
+					  unsigned long offset,
+					  size_t size,
+					  enum dma_data_direction dir);
+	void (*sync_single_range_for_device)(struct device *dev,
+					     dma_addr_t dma_handle,
+					     unsigned long offset,
+					     size_t size,
+					     enum dma_data_direction dir);
+	void (*sync_sg_for_cpu)(struct device *dev,
+				struct scatterlist *sg, int nents,
+				enum dma_data_direction dir);
+	void (*sync_sg_for_device)(struct device *dev,
+				   struct scatterlist *sg, int nents,
+				   enum dma_data_direction dir);
+	int (*mapping_error)(struct device *dev, dma_addr_t dma_addr);
+	int (*dma_supported)(struct device *dev, u64 mask);
+	int is_phys;
+};
+
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
 
 /*
-- 
cgit v1.2.3


From 160c1d8e40866edfeae7d68816b7005d70acf391 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 5 Jan 2009 23:59:02 +0900
Subject: x86, ia64: convert to use generic dma_map_ops struct

This converts X86 and IA64 to use include/linux/dma-mapping.h.

It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/ia64/dig/Makefile              |   4 +-
 arch/ia64/dig/dig_vtd_iommu.c       |  77 -------------------
 arch/ia64/hp/common/hwsw_iommu.c    |   6 +-
 arch/ia64/hp/common/sba_iommu.c     |  46 ++++++++----
 arch/ia64/include/asm/dma-mapping.h | 107 ++++++++------------------
 arch/ia64/include/asm/machvec.h     |  12 +--
 arch/ia64/kernel/dma-mapping.c      |   4 +-
 arch/ia64/kernel/machvec.c          |   8 +-
 arch/ia64/kernel/pci-dma.c          |  49 +++++++-----
 arch/ia64/kernel/pci-swiotlb.c      |  32 +++++---
 arch/ia64/sn/pci/pci_dma.c          |  58 +++++++-------
 arch/x86/include/asm/device.h       |   2 +-
 arch/x86/include/asm/dma-mapping.h  | 146 +++++++++++++-----------------------
 arch/x86/include/asm/iommu.h        |   2 +-
 arch/x86/kernel/amd_iommu.c         |   8 +-
 arch/x86/kernel/pci-calgary_64.c    |  15 ++--
 arch/x86/kernel/pci-dma.c           |   4 +-
 arch/x86/kernel/pci-gart_64.c       |  14 ++--
 arch/x86/kernel/pci-nommu.c         |   5 +-
 arch/x86/kernel/pci-swiotlb_64.c    |   6 +-
 drivers/pci/intel-iommu.c           |   9 +--
 include/linux/intel-iommu.h         |   6 +-
 include/linux/swiotlb.h             |  18 +++--
 lib/swiotlb.c                       |  18 +++--
 24 files changed, 278 insertions(+), 378 deletions(-)
 delete mode 100644 arch/ia64/dig/dig_vtd_iommu.c

(limited to 'include')

diff --git a/arch/ia64/dig/Makefile b/arch/ia64/dig/Makefile
index 5c0283830bd6..2f7caddf093e 100644
--- a/arch/ia64/dig/Makefile
+++ b/arch/ia64/dig/Makefile
@@ -7,8 +7,8 @@
 
 obj-y := setup.o
 ifeq ($(CONFIG_DMAR), y)
-obj-$(CONFIG_IA64_GENERIC) += machvec.o machvec_vtd.o dig_vtd_iommu.o
+obj-$(CONFIG_IA64_GENERIC) += machvec.o machvec_vtd.o
 else
 obj-$(CONFIG_IA64_GENERIC) += machvec.o
 endif
-obj-$(CONFIG_IA64_DIG_VTD) += dig_vtd_iommu.o
+
diff --git a/arch/ia64/dig/dig_vtd_iommu.c b/arch/ia64/dig/dig_vtd_iommu.c
deleted file mode 100644
index fdb8ba9f4992..000000000000
--- a/arch/ia64/dig/dig_vtd_iommu.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/intel-iommu.h>
-
-void *
-vtd_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
-		 gfp_t flags)
-{
-	return intel_alloc_coherent(dev, size, dma_handle, flags);
-}
-EXPORT_SYMBOL_GPL(vtd_alloc_coherent);
-
-void
-vtd_free_coherent(struct device *dev, size_t size, void *vaddr,
-		 dma_addr_t dma_handle)
-{
-	intel_free_coherent(dev, size, vaddr, dma_handle);
-}
-EXPORT_SYMBOL_GPL(vtd_free_coherent);
-
-dma_addr_t
-vtd_map_single_attrs(struct device *dev, void *addr, size_t size,
-		     int dir, struct dma_attrs *attrs)
-{
-	return intel_map_single(dev, (phys_addr_t)addr, size, dir);
-}
-EXPORT_SYMBOL_GPL(vtd_map_single_attrs);
-
-void
-vtd_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
-		       int dir, struct dma_attrs *attrs)
-{
-	intel_unmap_single(dev, iova, size, dir);
-}
-EXPORT_SYMBOL_GPL(vtd_unmap_single_attrs);
-
-int
-vtd_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents,
-		 int dir, struct dma_attrs *attrs)
-{
-	return intel_map_sg(dev, sglist, nents, dir);
-}
-EXPORT_SYMBOL_GPL(vtd_map_sg_attrs);
-
-void
-vtd_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist,
-		   int nents, int dir, struct dma_attrs *attrs)
-{
-	intel_unmap_sg(dev, sglist, nents, dir);
-}
-EXPORT_SYMBOL_GPL(vtd_unmap_sg_attrs);
-
-int
-vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-EXPORT_SYMBOL_GPL(vtd_dma_mapping_error);
-
-extern int iommu_dma_supported(struct device *dev, u64 mask);
-
-struct dma_mapping_ops vtd_dma_ops = {
-	.alloc_coherent		= vtd_alloc_coherent,
-	.free_coherent		= vtd_free_coherent,
-	.map_single_attrs	= vtd_map_single_attrs,
-	.unmap_single_attrs	= vtd_unmap_single_attrs,
-	.map_sg_attrs		= vtd_map_sg_attrs,
-	.unmap_sg_attrs		= vtd_unmap_sg_attrs,
-	.sync_single_for_cpu	= machvec_dma_sync_single,
-	.sync_sg_for_cpu	= machvec_dma_sync_sg,
-	.sync_single_for_device	= machvec_dma_sync_single,
-	.sync_sg_for_device	= machvec_dma_sync_sg,
-	.dma_supported_op	= iommu_dma_supported,
-	.mapping_error		= vtd_dma_mapping_error,
-};
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index e5bbeba77810..e4a80d82e3d8 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -17,7 +17,7 @@
 #include <linux/swiotlb.h>
 #include <asm/machvec.h>
 
-extern struct dma_mapping_ops sba_dma_ops, swiotlb_dma_ops;
+extern struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
 
 /* swiotlb declarations & definitions: */
 extern int swiotlb_late_init_with_default_size (size_t size);
@@ -30,10 +30,10 @@ extern int swiotlb_late_init_with_default_size (size_t size);
 static inline int use_swiotlb(struct device *dev)
 {
 	return dev && dev->dma_mask &&
-		!sba_dma_ops.dma_supported_op(dev, *dev->dma_mask);
+		!sba_dma_ops.dma_supported(dev, *dev->dma_mask);
 }
 
-struct dma_mapping_ops *hwsw_dma_get_ops(struct device *dev)
+struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
 {
 	if (use_swiotlb(dev))
 		return &swiotlb_dma_ops;
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 29e7206f3dc6..129b62eb39e5 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -909,11 +909,13 @@ sba_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
  *
  * See Documentation/DMA-mapping.txt
  */
-static dma_addr_t
-sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir,
-		     struct dma_attrs *attrs)
+static dma_addr_t sba_map_page(struct device *dev, struct page *page,
+			       unsigned long poff, size_t size,
+			       enum dma_data_direction dir,
+			       struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
+	void *addr = page_address(page) + poff;
 	dma_addr_t iovp;
 	dma_addr_t offset;
 	u64 *pdir_start;
@@ -992,6 +994,14 @@ sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir,
 	return SBA_IOVA(ioc, iovp, offset);
 }
 
+static dma_addr_t sba_map_single_attrs(struct device *dev, void *addr,
+				       size_t size, enum dma_data_direction dir,
+				       struct dma_attrs *attrs)
+{
+	return sba_map_page(dev, virt_to_page(addr),
+			    (unsigned long)addr & ~PAGE_MASK, size, dir, attrs);
+}
+
 #ifdef ENABLE_MARK_CLEAN
 static SBA_INLINE void
 sba_mark_clean(struct ioc *ioc, dma_addr_t iova, size_t size)
@@ -1026,8 +1036,8 @@ sba_mark_clean(struct ioc *ioc, dma_addr_t iova, size_t size)
  *
  * See Documentation/DMA-mapping.txt
  */
-static void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
-				   int dir, struct dma_attrs *attrs)
+static void sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
+			   enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
 #if DELAYED_RESOURCE_CNT > 0
@@ -1095,6 +1105,12 @@ static void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t s
 #endif /* DELAYED_RESOURCE_CNT == 0 */
 }
 
+void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
+			    enum dma_data_direction dir, struct dma_attrs *attrs)
+{
+	sba_unmap_page(dev, iova, size, dir, attrs);
+}
+
 /**
  * sba_alloc_coherent - allocate/map shared mem for DMA
  * @dev: instance of PCI owned by the driver that's asking.
@@ -1423,7 +1439,8 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
  * See Documentation/DMA-mapping.txt
  */
 static int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist,
-			    int nents, int dir, struct dma_attrs *attrs)
+			    int nents, enum dma_data_direction dir,
+			    struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -1514,7 +1531,8 @@ static int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist,
  * See Documentation/DMA-mapping.txt
  */
 static void sba_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist,
-			       int nents, int dir, struct dma_attrs *attrs)
+			       int nents, enum dma_data_direction dir,
+			       struct dma_attrs *attrs)
 {
 #ifdef ASSERT_PDIR_SANITY
 	struct ioc *ioc;
@@ -2062,7 +2080,7 @@ static struct acpi_driver acpi_sba_ioc_driver = {
 	},
 };
 
-extern struct dma_mapping_ops swiotlb_dma_ops;
+extern struct dma_map_ops swiotlb_dma_ops;
 
 static int __init
 sba_init(void)
@@ -2176,18 +2194,18 @@ sba_page_override(char *str)
 
 __setup("sbapagesize=",sba_page_override);
 
-struct dma_mapping_ops sba_dma_ops = {
+struct dma_map_ops sba_dma_ops = {
 	.alloc_coherent		= sba_alloc_coherent,
 	.free_coherent		= sba_free_coherent,
-	.map_single_attrs	= sba_map_single_attrs,
-	.unmap_single_attrs	= sba_unmap_single_attrs,
-	.map_sg_attrs		= sba_map_sg_attrs,
-	.unmap_sg_attrs		= sba_unmap_sg_attrs,
+	.map_page		= sba_map_page,
+	.unmap_page		= sba_unmap_page,
+	.map_sg			= sba_map_sg_attrs,
+	.unmap_sg		= sba_unmap_sg_attrs,
 	.sync_single_for_cpu	= machvec_dma_sync_single,
 	.sync_sg_for_cpu	= machvec_dma_sync_sg,
 	.sync_single_for_device	= machvec_dma_sync_single,
 	.sync_sg_for_device	= machvec_dma_sync_sg,
-	.dma_supported_op	= sba_dma_supported,
+	.dma_supported		= sba_dma_supported,
 	.mapping_error		= sba_dma_mapping_error,
 };
 
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index bac3159379f7..d6230f514536 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -9,73 +9,21 @@
 #include <linux/scatterlist.h>
 #include <asm/swiotlb.h>
 
-struct dma_mapping_ops {
-	int             (*mapping_error)(struct device *dev,
-					 dma_addr_t dma_addr);
-	void*           (*alloc_coherent)(struct device *dev, size_t size,
-				dma_addr_t *dma_handle, gfp_t gfp);
-	void            (*free_coherent)(struct device *dev, size_t size,
-				void *vaddr, dma_addr_t dma_handle);
-	dma_addr_t      (*map_single)(struct device *hwdev, unsigned long ptr,
-				size_t size, int direction);
-	void            (*unmap_single)(struct device *dev, dma_addr_t addr,
-				size_t size, int direction);
-	dma_addr_t      (*map_single_attrs)(struct device *dev, void *cpu_addr,
-					    size_t size, int direction,
-					    struct dma_attrs *attrs);
-	void		(*unmap_single_attrs)(struct device *dev,
-					      dma_addr_t dma_addr,
-					      size_t size, int direction,
-					      struct dma_attrs *attrs);
-	void            (*sync_single_for_cpu)(struct device *hwdev,
-				dma_addr_t dma_handle, size_t size,
-				int direction);
-	void            (*sync_single_for_device)(struct device *hwdev,
-				dma_addr_t dma_handle, size_t size,
-				int direction);
-	void            (*sync_single_range_for_cpu)(struct device *hwdev,
-				dma_addr_t dma_handle, unsigned long offset,
-				size_t size, int direction);
-	void            (*sync_single_range_for_device)(struct device *hwdev,
-				dma_addr_t dma_handle, unsigned long offset,
-				size_t size, int direction);
-	void            (*sync_sg_for_cpu)(struct device *hwdev,
-				struct scatterlist *sg, int nelems,
-				int direction);
-	void            (*sync_sg_for_device)(struct device *hwdev,
-				struct scatterlist *sg, int nelems,
-				int direction);
-	int             (*map_sg)(struct device *hwdev, struct scatterlist *sg,
-				int nents, int direction);
-	void            (*unmap_sg)(struct device *hwdev,
-				struct scatterlist *sg, int nents,
-				int direction);
-	int             (*map_sg_attrs)(struct device *dev,
-					struct scatterlist *sg, int nents,
-					int direction, struct dma_attrs *attrs);
-	void            (*unmap_sg_attrs)(struct device *dev,
-					  struct scatterlist *sg, int nents,
-					  int direction,
-					  struct dma_attrs *attrs);
-	int             (*dma_supported_op)(struct device *hwdev, u64 mask);
-	int		is_phys;
-};
-
-extern struct dma_mapping_ops *dma_ops;
+extern struct dma_map_ops *dma_ops;
 extern struct ia64_machine_vector ia64_mv;
 extern void set_iommu_machvec(void);
 
 static inline void *dma_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *daddr, gfp_t gfp)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
 	return ops->alloc_coherent(dev, size, daddr, gfp | GFP_DMA);
 }
 
 static inline void dma_free_coherent(struct device *dev, size_t size,
 				     void *caddr, dma_addr_t daddr)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
 	ops->free_coherent(dev, size, caddr, daddr);
 }
 
@@ -87,8 +35,10 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev,
 					      enum dma_data_direction dir,
 					      struct dma_attrs *attrs)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
-	return ops->map_single_attrs(dev, caddr, size, dir, attrs);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
+	return ops->map_page(dev, virt_to_page(caddr),
+			     (unsigned long)caddr & ~PAGE_MASK, size,
+			     dir, attrs);
 }
 
 static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
@@ -96,8 +46,8 @@ static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
 					  enum dma_data_direction dir,
 					  struct dma_attrs *attrs)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
-	ops->unmap_single_attrs(dev, daddr, size, dir, attrs);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
+	ops->unmap_page(dev, daddr, size, dir, attrs);
 }
 
 #define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
@@ -107,8 +57,8 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 				   int nents, enum dma_data_direction dir,
 				   struct dma_attrs *attrs)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
-	return ops->map_sg_attrs(dev, sgl, nents, dir, attrs);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
+	return ops->map_sg(dev, sgl, nents, dir, attrs);
 }
 
 static inline void dma_unmap_sg_attrs(struct device *dev,
@@ -116,8 +66,8 @@ static inline void dma_unmap_sg_attrs(struct device *dev,
 				      enum dma_data_direction dir,
 				      struct dma_attrs *attrs)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
-	ops->unmap_sg_attrs(dev, sgl, nents, dir, attrs);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
+	ops->unmap_sg(dev, sgl, nents, dir, attrs);
 }
 
 #define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
@@ -127,7 +77,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr,
 					   size_t size,
 					   enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
 	ops->sync_single_for_cpu(dev, daddr, size, dir);
 }
 
@@ -135,7 +85,7 @@ static inline void dma_sync_sg_for_cpu(struct device *dev,
 				       struct scatterlist *sgl,
 				       int nents, enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
 	ops->sync_sg_for_cpu(dev, sgl, nents, dir);
 }
 
@@ -144,7 +94,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
 					      size_t size,
 					      enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
 	ops->sync_single_for_device(dev, daddr, size, dir);
 }
 
@@ -153,20 +103,29 @@ static inline void dma_sync_sg_for_device(struct device *dev,
 					  int nents,
 					  enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
 	ops->sync_sg_for_device(dev, sgl, nents, dir);
 }
 
 static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
 	return ops->mapping_error(dev, daddr);
 }
 
-#define dma_map_page(dev, pg, off, size, dir)				\
-	dma_map_single(dev, page_address(pg) + (off), (size), (dir))
-#define dma_unmap_page(dev, dma_addr, size, dir)			\
-	dma_unmap_single(dev, dma_addr, size, dir)
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+				      size_t offset, size_t size,
+				      enum dma_data_direction dir)
+{
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
+	return ops->map_page(dev, page, offset, size, dir, NULL);
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
+				  size_t size, enum dma_data_direction dir)
+{
+	dma_unmap_single(dev, addr, size, dir);
+}
 
 /*
  * Rest of this file is part of the "Advanced DMA API".  Use at your own risk.
@@ -180,8 +139,8 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
 
 static inline int dma_supported(struct device *dev, u64 mask)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
-	return ops->dma_supported_op(dev, mask);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
+	return ops->dma_supported(dev, mask);
 }
 
 static inline int
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index 95e1708fa4e3..e8442c7e4cc8 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -11,7 +11,6 @@
 #define _ASM_IA64_MACHVEC_H
 
 #include <linux/types.h>
-#include <linux/swiotlb.h>
 
 /* forward declarations: */
 struct device;
@@ -24,6 +23,7 @@ struct task_struct;
 struct pci_dev;
 struct msi_desc;
 struct dma_attrs;
+enum dma_data_direction;
 
 typedef void ia64_mv_setup_t (char **);
 typedef void ia64_mv_cpu_init_t (void);
@@ -45,7 +45,7 @@ typedef void ia64_mv_kernel_launch_event_t(void);
 
 /* DMA-mapping interface: */
 typedef void ia64_mv_dma_init (void);
-typedef struct dma_mapping_ops *ia64_mv_dma_get_ops(struct device *);
+typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
 
 /*
  * WARNING: The legacy I/O space is _architected_.  Platforms are
@@ -97,8 +97,10 @@ machvec_noop_bus (struct pci_bus *bus)
 
 extern void machvec_setup (char **);
 extern void machvec_timer_interrupt (int, void *);
-extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int);
-extern void machvec_dma_sync_sg (struct device *, struct scatterlist *, int, int);
+extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
+				    enum dma_data_direction);
+extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
+				enum dma_data_direction);
 extern void machvec_tlb_migrate_finish (struct mm_struct *);
 
 # if defined (CONFIG_IA64_HP_SIM)
@@ -250,7 +252,7 @@ extern void machvec_init_from_cmdline(const char *cmdline);
 # endif /* CONFIG_IA64_GENERIC */
 
 extern void swiotlb_dma_init(void);
-extern struct dma_mapping_ops *dma_get_ops(struct device *);
+extern struct dma_map_ops *dma_get_ops(struct device *);
 
 /*
  * Define default versions so we can extend machvec for new platforms without having
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 427f69617226..7060e13fa421 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -1,9 +1,9 @@
 #include <linux/dma-mapping.h>
 
-struct dma_mapping_ops *dma_ops;
+struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-struct dma_mapping_ops *dma_get_ops(struct device *dev)
+struct dma_map_ops *dma_get_ops(struct device *dev)
 {
 	return dma_ops;
 }
diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c
index 7ccb228ceedc..d41a40ef80c0 100644
--- a/arch/ia64/kernel/machvec.c
+++ b/arch/ia64/kernel/machvec.c
@@ -1,5 +1,5 @@
 #include <linux/module.h>
-
+#include <linux/dma-mapping.h>
 #include <asm/machvec.h>
 #include <asm/system.h>
 
@@ -75,14 +75,16 @@ machvec_timer_interrupt (int irq, void *dev_id)
 EXPORT_SYMBOL(machvec_timer_interrupt);
 
 void
-machvec_dma_sync_single (struct device *hwdev, dma_addr_t dma_handle, size_t size, int dir)
+machvec_dma_sync_single(struct device *hwdev, dma_addr_t dma_handle, size_t size,
+			enum dma_data_direction dir)
 {
 	mb();
 }
 EXPORT_SYMBOL(machvec_dma_sync_single);
 
 void
-machvec_dma_sync_sg (struct device *hwdev, struct scatterlist *sg, int n, int dir)
+machvec_dma_sync_sg(struct device *hwdev, struct scatterlist *sg, int n,
+		    enum dma_data_direction dir)
 {
 	mb();
 }
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 640669eba5d4..b30209ec8c6e 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -41,21 +41,7 @@ struct device fallback_dev = {
 	.dma_mask = &fallback_dev.coherent_dma_mask,
 };
 
-extern struct dma_mapping_ops vtd_dma_ops;
-
-void __init pci_iommu_alloc(void)
-{
-	dma_ops = &vtd_dma_ops;
-	/*
-	 * The order of these functions is important for
-	 * fall-back/fail-over reasons
-	 */
-	detect_intel_iommu();
-
-#ifdef CONFIG_SWIOTLB
-	pci_swiotlb_init();
-#endif
-}
+extern struct dma_map_ops intel_dma_ops;
 
 static int __init pci_iommu_init(void)
 {
@@ -81,10 +67,10 @@ iommu_dma_init(void)
 
 int iommu_dma_supported(struct device *dev, u64 mask)
 {
-	struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+	struct dma_map_ops *ops = platform_dma_get_ops(dev);
 
-	if (ops->dma_supported_op)
-		return ops->dma_supported_op(dev, mask);
+	if (ops->dma_supported)
+		return ops->dma_supported(dev, mask);
 
 	/* Copied from i386. Doesn't make much sense, because it will
 	   only work for pci_alloc_coherent.
@@ -113,4 +99,31 @@ int iommu_dma_supported(struct device *dev, u64 mask)
 }
 EXPORT_SYMBOL(iommu_dma_supported);
 
+static int vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return 0;
+}
+
+void __init pci_iommu_alloc(void)
+{
+	dma_ops = &intel_dma_ops;
+
+	dma_ops->sync_single_for_cpu = machvec_dma_sync_single;
+	dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg;
+	dma_ops->sync_single_for_device = machvec_dma_sync_single;
+	dma_ops->sync_sg_for_device = machvec_dma_sync_sg;
+	dma_ops->dma_supported = iommu_dma_supported;
+	dma_ops->mapping_error = vtd_dma_mapping_error;
+
+	/*
+	 * The order of these functions is important for
+	 * fall-back/fail-over reasons
+	 */
+	detect_intel_iommu();
+
+#ifdef CONFIG_SWIOTLB
+	pci_swiotlb_init();
+#endif
+}
+
 #endif
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 9f172c864377..6bf8f66786bd 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -16,24 +16,36 @@ EXPORT_SYMBOL(swiotlb);
 /* Set this to 1 if there is a HW IOMMU in the system */
 int iommu_detected __read_mostly;
 
-struct dma_mapping_ops swiotlb_dma_ops = {
+static dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
+				   unsigned long offset, size_t size,
+				   enum dma_data_direction dir,
+				   struct dma_attrs *attrs)
+{
+	return swiotlb_map_single_attrs(dev, page_address(page) + offset, size,
+					dir, attrs);
+}
+
+static void swiotlb_unmap_page(struct device *dev, dma_addr_t dma_handle,
+			       size_t size, enum dma_data_direction dir,
+			       struct dma_attrs *attrs)
+{
+	swiotlb_unmap_single_attrs(dev, dma_handle, size, dir, attrs);
+}
+
+struct dma_map_ops swiotlb_dma_ops = {
 	.alloc_coherent = swiotlb_alloc_coherent,
 	.free_coherent = swiotlb_free_coherent,
-	.map_single = swiotlb_map_single,
-	.unmap_single = swiotlb_unmap_single,
-	.map_single_attrs = swiotlb_map_single_attrs,
-	.unmap_single_attrs = swiotlb_unmap_single_attrs,
-	.map_sg_attrs = swiotlb_map_sg_attrs,
-	.unmap_sg_attrs	= swiotlb_unmap_sg_attrs,
+	.map_page = swiotlb_map_page,
+	.unmap_page = swiotlb_unmap_page,
+	.map_sg = swiotlb_map_sg_attrs,
+	.unmap_sg = swiotlb_unmap_sg_attrs,
 	.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
 	.sync_single_for_device = swiotlb_sync_single_for_device,
 	.sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu,
 	.sync_single_range_for_device = swiotlb_sync_single_range_for_device,
 	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
 	.sync_sg_for_device = swiotlb_sync_sg_for_device,
-	.map_sg = swiotlb_map_sg,
-	.unmap_sg = swiotlb_unmap_sg,
-	.dma_supported_op = swiotlb_dma_supported,
+	.dma_supported = swiotlb_dma_supported,
 	.mapping_error = swiotlb_dma_mapping_error,
 };
 
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index efdd69490009..9c788f9cedfd 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -10,7 +10,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/dma-attrs.h>
 #include <linux/dma-mapping.h>
 #include <asm/dma.h>
 #include <asm/sn/intr.h>
@@ -171,10 +170,12 @@ static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr
  * TODO: simplify our interface;
  *       figure out how to save dmamap handle so can use two step.
  */
-static dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
-					  size_t size, int direction,
-					  struct dma_attrs *attrs)
+static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
+				  unsigned long offset, size_t size,
+				  enum dma_data_direction dir,
+				  struct dma_attrs *attrs)
 {
+	void *cpu_addr = page_address(page) + offset;
 	dma_addr_t dma_addr;
 	unsigned long phys_addr;
 	struct pci_dev *pdev = to_pci_dev(dev);
@@ -212,20 +213,20 @@ static dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
  * by @dma_handle into the coherence domain.  On SN, we're always cache
  * coherent, so we just need to free any ATEs associated with this mapping.
  */
-static void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
-				      size_t size, int direction,
-				      struct dma_attrs *attrs)
+static void sn_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+			      size_t size, enum dma_data_direction dir,
+			      struct dma_attrs *attrs)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
 
 	BUG_ON(dev->bus != &pci_bus_type);
 
-	provider->dma_unmap(pdev, dma_addr, direction);
+	provider->dma_unmap(pdev, dma_addr, dir);
 }
 
 /**
- * sn_dma_unmap_sg_attrs - unmap a DMA scatterlist
+ * sn_dma_unmap_sg - unmap a DMA scatterlist
  * @dev: device to unmap
  * @sg: scatterlist to unmap
  * @nhwentries: number of scatterlist entries
@@ -234,9 +235,9 @@ static void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
  *
  * Unmap a set of streaming mode DMA translations.
  */
-static void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
-				  int nhwentries, int direction,
-				  struct dma_attrs *attrs)
+static void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
+			    int nhwentries, enum dma_data_direction dir,
+			    struct dma_attrs *attrs)
 {
 	int i;
 	struct pci_dev *pdev = to_pci_dev(dev);
@@ -246,14 +247,14 @@ static void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
 	BUG_ON(dev->bus != &pci_bus_type);
 
 	for_each_sg(sgl, sg, nhwentries, i) {
-		provider->dma_unmap(pdev, sg->dma_address, direction);
+		provider->dma_unmap(pdev, sg->dma_address, dir);
 		sg->dma_address = (dma_addr_t) NULL;
 		sg->dma_length = 0;
 	}
 }
 
 /**
- * sn_dma_map_sg_attrs - map a scatterlist for DMA
+ * sn_dma_map_sg - map a scatterlist for DMA
  * @dev: device to map for
  * @sg: scatterlist to map
  * @nhwentries: number of entries
@@ -267,8 +268,9 @@ static void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
  *
  * Maps each entry of @sg for DMA.
  */
-static int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
-			       int nhwentries, int direction, struct dma_attrs *attrs)
+static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
+			 int nhwentries, enum dma_data_direction dir,
+			 struct dma_attrs *attrs)
 {
 	unsigned long phys_addr;
 	struct scatterlist *saved_sg = sgl, *sg;
@@ -305,8 +307,7 @@ static int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 			 * Free any successfully allocated entries.
 			 */
 			if (i > 0)
-				sn_dma_unmap_sg_attrs(dev, saved_sg, i,
-						      direction, attrs);
+				sn_dma_unmap_sg(dev, saved_sg, i, dir, attrs);
 			return 0;
 		}
 
@@ -317,25 +318,26 @@ static int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 }
 
 static void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-				       size_t size, int direction)
+				       size_t size, enum dma_data_direction dir)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 }
 
 static void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-					  size_t size, int direction)
+					  size_t size,
+					  enum dma_data_direction dir)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 }
 
 static void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-				   int nelems, int direction)
+				   int nelems, enum dma_data_direction dir)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 }
 
 static void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-				      int nelems, int direction)
+				      int nelems, enum dma_data_direction dir)
 {
 	BUG_ON(dev->bus != &pci_bus_type);
 }
@@ -455,19 +457,19 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
 	return ret;
 }
 
-static struct dma_mapping_ops sn_dma_ops = {
+static struct dma_map_ops sn_dma_ops = {
 	.alloc_coherent		= sn_dma_alloc_coherent,
 	.free_coherent		= sn_dma_free_coherent,
-	.map_single_attrs	= sn_dma_map_single_attrs,
-	.unmap_single_attrs	= sn_dma_unmap_single_attrs,
-	.map_sg_attrs		= sn_dma_map_sg_attrs,
-	.unmap_sg_attrs		= sn_dma_unmap_sg_attrs,
+	.map_page		= sn_dma_map_page,
+	.unmap_page		= sn_dma_unmap_page,
+	.map_sg			= sn_dma_map_sg,
+	.unmap_sg		= sn_dma_unmap_sg,
 	.sync_single_for_cpu 	= sn_dma_sync_single_for_cpu,
 	.sync_sg_for_cpu	= sn_dma_sync_sg_for_cpu,
 	.sync_single_for_device = sn_dma_sync_single_for_device,
 	.sync_sg_for_device	= sn_dma_sync_sg_for_device,
 	.mapping_error		= sn_dma_mapping_error,
-	.dma_supported_op	= sn_dma_supported,
+	.dma_supported		= sn_dma_supported,
 };
 
 void sn_dma_init(void)
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 3c034f48fdb0..4994a20acbcb 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -6,7 +6,7 @@ struct dev_archdata {
 	void	*acpi_handle;
 #endif
 #ifdef CONFIG_X86_64
-struct dma_mapping_ops *dma_ops;
+struct dma_map_ops *dma_ops;
 #endif
 #ifdef CONFIG_DMAR
 	void *iommu; /* hook for IOMMU specific extension */
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index b81f82268a16..5a347805a6c7 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -17,50 +17,9 @@ extern int iommu_merge;
 extern struct device x86_dma_fallback_dev;
 extern int panic_on_overflow;
 
-struct dma_mapping_ops {
-	int             (*mapping_error)(struct device *dev,
-					 dma_addr_t dma_addr);
-	void*           (*alloc_coherent)(struct device *dev, size_t size,
-				dma_addr_t *dma_handle, gfp_t gfp);
-	void            (*free_coherent)(struct device *dev, size_t size,
-				void *vaddr, dma_addr_t dma_handle);
-	void            (*sync_single_for_cpu)(struct device *hwdev,
-				dma_addr_t dma_handle, size_t size,
-				int direction);
-	void            (*sync_single_for_device)(struct device *hwdev,
-				dma_addr_t dma_handle, size_t size,
-				int direction);
-	void            (*sync_single_range_for_cpu)(struct device *hwdev,
-				dma_addr_t dma_handle, unsigned long offset,
-				size_t size, int direction);
-	void            (*sync_single_range_for_device)(struct device *hwdev,
-				dma_addr_t dma_handle, unsigned long offset,
-				size_t size, int direction);
-	void            (*sync_sg_for_cpu)(struct device *hwdev,
-				struct scatterlist *sg, int nelems,
-				int direction);
-	void            (*sync_sg_for_device)(struct device *hwdev,
-				struct scatterlist *sg, int nelems,
-				int direction);
-	int             (*map_sg)(struct device *hwdev, struct scatterlist *sg,
-				int nents, int direction);
-	void            (*unmap_sg)(struct device *hwdev,
-				struct scatterlist *sg, int nents,
-				int direction);
-	dma_addr_t	(*map_page)(struct device *dev, struct page *page,
-				    unsigned long offset, size_t size,
-				    enum dma_data_direction dir,
-				    struct dma_attrs *attrs);
-	void 		(*unmap_page)(struct device *dev, dma_addr_t dma_handle,
-				      size_t size, enum dma_data_direction dir,
-				      struct dma_attrs *attrs);
-	int             (*dma_supported)(struct device *hwdev, u64 mask);
-	int		is_phys;
-};
-
-extern struct dma_mapping_ops *dma_ops;
-
-static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
+extern struct dma_map_ops *dma_ops;
+
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 #ifdef CONFIG_X86_32
 	return dma_ops;
@@ -75,7 +34,7 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
 /* Make sure we keep the same behaviour */
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(dev);
+	struct dma_map_ops *ops = get_dma_ops(dev);
 	if (ops->mapping_error)
 		return ops->mapping_error(dev, dma_addr);
 
@@ -94,138 +53,139 @@ extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 
 static inline dma_addr_t
 dma_map_single(struct device *hwdev, void *ptr, size_t size,
-	       int direction)
+	       enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	return ops->map_page(hwdev, virt_to_page(ptr),
 			     (unsigned long)ptr & ~PAGE_MASK, size,
-			     direction, NULL);
+			     dir, NULL);
 }
 
 static inline void
 dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
-		 int direction)
+		 enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(dev);
+	struct dma_map_ops *ops = get_dma_ops(dev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	if (ops->unmap_page)
-		ops->unmap_page(dev, addr, size, direction, NULL);
+		ops->unmap_page(dev, addr, size, dir, NULL);
 }
 
 static inline int
 dma_map_sg(struct device *hwdev, struct scatterlist *sg,
-	   int nents, int direction)
+	   int nents, enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
-	return ops->map_sg(hwdev, sg, nents, direction);
+	BUG_ON(!valid_dma_direction(dir));
+	return ops->map_sg(hwdev, sg, nents, dir, NULL);
 }
 
 static inline void
 dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
-	     int direction)
+	     enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	if (ops->unmap_sg)
-		ops->unmap_sg(hwdev, sg, nents, direction);
+		ops->unmap_sg(hwdev, sg, nents, dir, NULL);
 }
 
 static inline void
 dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
-			size_t size, int direction)
+			size_t size, enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_single_for_cpu)
-		ops->sync_single_for_cpu(hwdev, dma_handle, size, direction);
+		ops->sync_single_for_cpu(hwdev, dma_handle, size, dir);
 	flush_write_buffers();
 }
 
 static inline void
 dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle,
-			   size_t size, int direction)
+			   size_t size, enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_single_for_device)
-		ops->sync_single_for_device(hwdev, dma_handle, size, direction);
+		ops->sync_single_for_device(hwdev, dma_handle, size, dir);
 	flush_write_buffers();
 }
 
 static inline void
 dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
-			      unsigned long offset, size_t size, int direction)
+			      unsigned long offset, size_t size,
+			      enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_single_range_for_cpu)
 		ops->sync_single_range_for_cpu(hwdev, dma_handle, offset,
-					       size, direction);
+					       size, dir);
 	flush_write_buffers();
 }
 
 static inline void
 dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle,
 				 unsigned long offset, size_t size,
-				 int direction)
+				 enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_single_range_for_device)
 		ops->sync_single_range_for_device(hwdev, dma_handle,
-						  offset, size, direction);
+						  offset, size, dir);
 	flush_write_buffers();
 }
 
 static inline void
 dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
-		    int nelems, int direction)
+		    int nelems, enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_sg_for_cpu)
-		ops->sync_sg_for_cpu(hwdev, sg, nelems, direction);
+		ops->sync_sg_for_cpu(hwdev, sg, nelems, dir);
 	flush_write_buffers();
 }
 
 static inline void
 dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
-		       int nelems, int direction)
+		       int nelems, enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+	struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-	BUG_ON(!valid_dma_direction(direction));
+	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_sg_for_device)
-		ops->sync_sg_for_device(hwdev, sg, nelems, direction);
+		ops->sync_sg_for_device(hwdev, sg, nelems, dir);
 
 	flush_write_buffers();
 }
 
 static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
 				      size_t offset, size_t size,
-				      int direction)
+				      enum dma_data_direction dir)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(dev);
+	struct dma_map_ops *ops = get_dma_ops(dev);
 
-	BUG_ON(!valid_dma_direction(direction));
-	return ops->map_page(dev, page, offset, size, direction, NULL);
+	BUG_ON(!valid_dma_direction(dir));
+	return ops->map_page(dev, page, offset, size, dir, NULL);
 }
 
 static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
-				  size_t size, int direction)
+				  size_t size, enum dma_data_direction dir)
 {
-	dma_unmap_single(dev, addr, size, direction);
+	dma_unmap_single(dev, addr, size, dir);
 }
 
 static inline void
@@ -271,7 +231,7 @@ static inline void *
 dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		gfp_t gfp)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(dev);
+	struct dma_map_ops *ops = get_dma_ops(dev);
 	void *memory;
 
 	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
@@ -297,7 +257,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
 static inline void dma_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t bus)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(dev);
+	struct dma_map_ops *ops = get_dma_ops(dev);
 
 	WARN_ON(irqs_disabled());       /* for portability */
 
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index a6ee9e6f530f..af326a2975b5 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -3,7 +3,7 @@
 
 extern void pci_iommu_shutdown(void);
 extern void no_iommu_init(void);
-extern struct dma_mapping_ops nommu_dma_ops;
+extern struct dma_map_ops nommu_dma_ops;
 extern int force_iommu, no_iommu;
 extern int iommu_detected;
 
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index a5dedb690a9a..008e522b9536 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1394,7 +1394,8 @@ static int map_sg_no_iommu(struct device *dev, struct scatterlist *sglist,
  * lists).
  */
 static int map_sg(struct device *dev, struct scatterlist *sglist,
-		  int nelems, int dir)
+		  int nelems, enum dma_data_direction dir,
+		  struct dma_attrs *attrs)
 {
 	unsigned long flags;
 	struct amd_iommu *iommu;
@@ -1461,7 +1462,8 @@ unmap:
  * lists).
  */
 static void unmap_sg(struct device *dev, struct scatterlist *sglist,
-		     int nelems, int dir)
+		     int nelems, enum dma_data_direction dir,
+		     struct dma_attrs *attrs)
 {
 	unsigned long flags;
 	struct amd_iommu *iommu;
@@ -1648,7 +1650,7 @@ static void prealloc_protection_domains(void)
 	}
 }
 
-static struct dma_mapping_ops amd_iommu_dma_ops = {
+static struct dma_map_ops amd_iommu_dma_ops = {
 	.alloc_coherent = alloc_coherent,
 	.free_coherent = free_coherent,
 	.map_page = map_page,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 756138b604e1..755c21e906f3 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -380,8 +380,9 @@ static inline struct iommu_table *find_iommu_table(struct device *dev)
 	return tbl;
 }
 
-static void calgary_unmap_sg(struct device *dev,
-	struct scatterlist *sglist, int nelems, int direction)
+static void calgary_unmap_sg(struct device *dev, struct scatterlist *sglist,
+			     int nelems,enum dma_data_direction dir,
+			     struct dma_attrs *attrs)
 {
 	struct iommu_table *tbl = find_iommu_table(dev);
 	struct scatterlist *s;
@@ -404,7 +405,8 @@ static void calgary_unmap_sg(struct device *dev,
 }
 
 static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
-	int nelems, int direction)
+			  int nelems, enum dma_data_direction dir,
+			  struct dma_attrs *attrs)
 {
 	struct iommu_table *tbl = find_iommu_table(dev);
 	struct scatterlist *s;
@@ -429,15 +431,14 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
 		s->dma_address = (entry << PAGE_SHIFT) | s->offset;
 
 		/* insert into HW table */
-		tce_build(tbl, entry, npages, vaddr & PAGE_MASK,
-			  direction);
+		tce_build(tbl, entry, npages, vaddr & PAGE_MASK, dir);
 
 		s->dma_length = s->length;
 	}
 
 	return nelems;
 error:
-	calgary_unmap_sg(dev, sg, nelems, direction);
+	calgary_unmap_sg(dev, sg, nelems, dir, NULL);
 	for_each_sg(sg, s, nelems, i) {
 		sg->dma_address = bad_dma_address;
 		sg->dma_length = 0;
@@ -518,7 +519,7 @@ static void calgary_free_coherent(struct device *dev, size_t size,
 	free_pages((unsigned long)vaddr, get_order(size));
 }
 
-static struct dma_mapping_ops calgary_dma_ops = {
+static struct dma_map_ops calgary_dma_ops = {
 	.alloc_coherent = calgary_alloc_coherent,
 	.free_coherent = calgary_free_coherent,
 	.map_sg = calgary_map_sg,
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 19a1044a0cd9..0d75c129b18a 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -12,7 +12,7 @@
 
 static int forbid_dac __read_mostly;
 
-struct dma_mapping_ops *dma_ops;
+struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 static int iommu_sac_force __read_mostly;
@@ -224,7 +224,7 @@ early_param("iommu", iommu_setup);
 
 int dma_supported(struct device *dev, u64 mask)
 {
-	struct dma_mapping_ops *ops = get_dma_ops(dev);
+	struct dma_map_ops *ops = get_dma_ops(dev);
 
 #ifdef CONFIG_PCI
 	if (mask > 0xffffffff && forbid_dac > 0) {
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 9c557c0c928c..8cb3e45439cf 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -302,8 +302,8 @@ static void gart_unmap_page(struct device *dev, dma_addr_t dma_addr,
 /*
  * Wrapper for pci_unmap_single working with scatterlists.
  */
-static void
-gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
+			  enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	struct scatterlist *s;
 	int i;
@@ -333,7 +333,7 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg,
 			addr = dma_map_area(dev, addr, s->length, dir, 0);
 			if (addr == bad_dma_address) {
 				if (i > 0)
-					gart_unmap_sg(dev, sg, i, dir);
+					gart_unmap_sg(dev, sg, i, dir, NULL);
 				nents = 0;
 				sg[0].dma_length = 0;
 				break;
@@ -404,8 +404,8 @@ dma_map_cont(struct device *dev, struct scatterlist *start, int nelems,
  * DMA map all entries in a scatterlist.
  * Merge chunks that have page aligned sizes into a continuous mapping.
  */
-static int
-gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+		       enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	struct scatterlist *s, *ps, *start_sg, *sgmap;
 	int need = 0, nextneed, i, out, start;
@@ -472,7 +472,7 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
 
 error:
 	flush_gart();
-	gart_unmap_sg(dev, sg, out, dir);
+	gart_unmap_sg(dev, sg, out, dir, NULL);
 
 	/* When it was forced or merged try again in a dumb way */
 	if (force_iommu || iommu_merge) {
@@ -711,7 +711,7 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
 	return -1;
 }
 
-static struct dma_mapping_ops gart_dma_ops = {
+static struct dma_map_ops gart_dma_ops = {
 	.map_sg				= gart_map_sg,
 	.unmap_sg			= gart_unmap_sg,
 	.map_page			= gart_map_page,
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index d42b69c90b40..fe50214db876 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -54,7 +54,8 @@ static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
  * the same here.
  */
 static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
-	       int nents, int direction)
+			int nents, enum dma_data_direction dir,
+			struct dma_attrs *attrs)
 {
 	struct scatterlist *s;
 	int i;
@@ -78,7 +79,7 @@ static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr,
 	free_pages((unsigned long)vaddr, get_order(size));
 }
 
-struct dma_mapping_ops nommu_dma_ops = {
+struct dma_map_ops nommu_dma_ops = {
 	.alloc_coherent = dma_generic_alloc_coherent,
 	.free_coherent = nommu_free_coherent,
 	.map_sg = nommu_map_sg,
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index 3ae354c0fdef..3f0d9924dd1c 100644
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -67,7 +67,7 @@ static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 	return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
 }
 
-struct dma_mapping_ops swiotlb_dma_ops = {
+struct dma_map_ops swiotlb_dma_ops = {
 	.mapping_error = swiotlb_dma_mapping_error,
 	.alloc_coherent = x86_swiotlb_alloc_coherent,
 	.free_coherent = swiotlb_free_coherent,
@@ -77,8 +77,8 @@ struct dma_mapping_ops swiotlb_dma_ops = {
 	.sync_single_range_for_device = swiotlb_sync_single_range_for_device,
 	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
 	.sync_sg_for_device = swiotlb_sync_sg_for_device,
-	.map_sg = swiotlb_map_sg,
-	.unmap_sg = swiotlb_unmap_sg,
+	.map_sg = swiotlb_map_sg_attrs,
+	.unmap_sg = swiotlb_unmap_sg_attrs,
 	.map_page = swiotlb_map_page,
 	.unmap_page = swiotlb_unmap_page,
 	.dma_supported = NULL,
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index da273e4ef66c..b9a562933903 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -2441,7 +2441,8 @@ void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
 #define SG_ENT_VIRT_ADDRESS(sg)	(sg_virt((sg)))
 
 void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
-		    int nelems, int dir)
+		    int nelems, enum dma_data_direction dir,
+		    struct dma_attrs *attrs)
 {
 	int i;
 	struct pci_dev *pdev = to_pci_dev(hwdev);
@@ -2499,7 +2500,7 @@ static int intel_nontranslate_map_sg(struct device *hddev,
 }
 
 int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
-		 int dir)
+		 enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	void *addr;
 	int i;
@@ -2579,15 +2580,13 @@ int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
 	return nelems;
 }
 
-static struct dma_mapping_ops intel_dma_ops = {
+struct dma_map_ops intel_dma_ops = {
 	.alloc_coherent = intel_alloc_coherent,
 	.free_coherent = intel_free_coherent,
 	.map_sg = intel_map_sg,
 	.unmap_sg = intel_unmap_sg,
-#ifdef CONFIG_X86_64
 	.map_page = intel_map_page,
 	.unmap_page = intel_unmap_page,
-#endif
 };
 
 static inline int iommu_domain_cache_init(void)
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index c4f6c101dbcd..a254db1decd0 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -334,7 +334,9 @@ extern void *intel_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
 extern void intel_free_coherent(struct device *, size_t, void *, dma_addr_t);
 extern dma_addr_t intel_map_single(struct device *, phys_addr_t, size_t, int);
 extern void intel_unmap_single(struct device *, dma_addr_t, size_t, int);
-extern int intel_map_sg(struct device *, struct scatterlist *, int, int);
-extern void intel_unmap_sg(struct device *, struct scatterlist *, int, int);
+extern int intel_map_sg(struct device *, struct scatterlist *, int,
+			enum dma_data_direction, struct dma_attrs *);
+extern void intel_unmap_sg(struct device *, struct scatterlist *, int,
+			   enum dma_data_direction, struct dma_attrs *);
 
 #endif
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index dedd3c0cfe30..0567c3d8633b 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -66,36 +66,38 @@ swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
 
 extern int
 swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
-		     int dir, struct dma_attrs *attrs);
+		     enum dma_data_direction dir, struct dma_attrs *attrs);
 
 extern void
 swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
-		       int nelems, int dir, struct dma_attrs *attrs);
+		       int nelems, enum dma_data_direction dir,
+		       struct dma_attrs *attrs);
 
 extern void
 swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
-			    size_t size, int dir);
+			    size_t size, enum dma_data_direction dir);
 
 extern void
 swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
-			int nelems, int dir);
+			int nelems, enum dma_data_direction dir);
 
 extern void
 swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
-			       size_t size, int dir);
+			       size_t size, enum dma_data_direction dir);
 
 extern void
 swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
-			   int nelems, int dir);
+			   int nelems, enum dma_data_direction dir);
 
 extern void
 swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
-				  unsigned long offset, size_t size, int dir);
+				  unsigned long offset, size_t size,
+				  enum dma_data_direction dir);
 
 extern void
 swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
 				     unsigned long offset, size_t size,
-				     int dir);
+				     enum dma_data_direction dir);
 
 extern int
 swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 48deef7e1976..d047de990a3f 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -736,7 +736,7 @@ swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
 
 void
 swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
-			    size_t size, int dir)
+			    size_t size, enum dma_data_direction dir)
 {
 	swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_CPU);
 }
@@ -744,7 +744,7 @@ EXPORT_SYMBOL(swiotlb_sync_single_for_cpu);
 
 void
 swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
-			       size_t size, int dir)
+			       size_t size, enum dma_data_direction dir)
 {
 	swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_DEVICE);
 }
@@ -769,7 +769,8 @@ swiotlb_sync_single_range(struct device *hwdev, dma_addr_t dev_addr,
 
 void
 swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
-				  unsigned long offset, size_t size, int dir)
+				  unsigned long offset, size_t size,
+				  enum dma_data_direction dir)
 {
 	swiotlb_sync_single_range(hwdev, dev_addr, offset, size, dir,
 				  SYNC_FOR_CPU);
@@ -778,7 +779,8 @@ EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_cpu);
 
 void
 swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
-				     unsigned long offset, size_t size, int dir)
+				     unsigned long offset, size_t size,
+				     enum dma_data_direction dir)
 {
 	swiotlb_sync_single_range(hwdev, dev_addr, offset, size, dir,
 				  SYNC_FOR_DEVICE);
@@ -803,7 +805,7 @@ EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_device);
  */
 int
 swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
-		     int dir, struct dma_attrs *attrs)
+		     enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	struct scatterlist *sg;
 	int i;
@@ -850,7 +852,7 @@ EXPORT_SYMBOL(swiotlb_map_sg);
  */
 void
 swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
-		       int nelems, int dir, struct dma_attrs *attrs)
+		       int nelems, enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	struct scatterlist *sg;
 	int i;
@@ -902,7 +904,7 @@ swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sgl,
 
 void
 swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
-			int nelems, int dir)
+			int nelems, enum dma_data_direction dir)
 {
 	swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_CPU);
 }
@@ -910,7 +912,7 @@ EXPORT_SYMBOL(swiotlb_sync_sg_for_cpu);
 
 void
 swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
-			   int nelems, int dir)
+			   int nelems, enum dma_data_direction dir)
 {
 	swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_DEVICE);
 }
-- 
cgit v1.2.3


From f98eee8ea99fe74ee9c4e867ba178ec3072793be Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 5 Jan 2009 23:59:03 +0900
Subject: x86, ia64: remove duplicated swiotlb code

This adds swiotlb_map_page and swiotlb_unmap_page to lib/swiotlb.c and
remove IA64 and X86's swiotlb_map_page and swiotlb_unmap_page.

This also removes unnecessary swiotlb_map_single, swiotlb_map_single_attrs,
swiotlb_unmap_single and swiotlb_unmap_single_attrs.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/ia64/kernel/pci-swiotlb.c   | 16 --------------
 arch/x86/kernel/pci-swiotlb_64.c | 17 --------------
 include/linux/swiotlb.h          | 21 ++++++------------
 lib/swiotlb.c                    | 48 +++++++++++++++-------------------------
 4 files changed, 25 insertions(+), 77 deletions(-)

(limited to 'include')

diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 6bf8f66786bd..e6b2ec9b27da 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -16,22 +16,6 @@ EXPORT_SYMBOL(swiotlb);
 /* Set this to 1 if there is a HW IOMMU in the system */
 int iommu_detected __read_mostly;
 
-static dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
-				   unsigned long offset, size_t size,
-				   enum dma_data_direction dir,
-				   struct dma_attrs *attrs)
-{
-	return swiotlb_map_single_attrs(dev, page_address(page) + offset, size,
-					dir, attrs);
-}
-
-static void swiotlb_unmap_page(struct device *dev, dma_addr_t dma_handle,
-			       size_t size, enum dma_data_direction dir,
-			       struct dma_attrs *attrs)
-{
-	swiotlb_unmap_single_attrs(dev, dma_handle, size, dir, attrs);
-}
-
 struct dma_map_ops swiotlb_dma_ops = {
 	.alloc_coherent = swiotlb_alloc_coherent,
 	.free_coherent = swiotlb_free_coherent,
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index 3f0d9924dd1c..5e32c4f6a7ba 100644
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -38,23 +38,6 @@ int __weak swiotlb_arch_range_needs_mapping(void *ptr, size_t size)
 	return 0;
 }
 
-/* these will be moved to lib/swiotlb.c later on */
-
-static dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
-				   unsigned long offset, size_t size,
-				   enum dma_data_direction dir,
-				   struct dma_attrs *attrs)
-{
-	return swiotlb_map_single(dev, page_address(page) + offset, size, dir);
-}
-
-static void swiotlb_unmap_page(struct device *dev, dma_addr_t dma_handle,
-			       size_t size, enum dma_data_direction dir,
-			       struct dma_attrs *attrs)
-{
-	swiotlb_unmap_single(dev, dma_handle, size, dir);
-}
-
 static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 					dma_addr_t *dma_handle, gfp_t flags)
 {
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 0567c3d8633b..493dc17e7c87 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -41,20 +41,13 @@ extern void
 swiotlb_free_coherent(struct device *hwdev, size_t size,
 		      void *vaddr, dma_addr_t dma_handle);
 
-extern dma_addr_t
-swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir);
-
-extern void
-swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
-		     size_t size, int dir);
-
-extern dma_addr_t
-swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size,
-			 int dir, struct dma_attrs *attrs);
-
-extern void
-swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr,
-			   size_t size, int dir, struct dma_attrs *attrs);
+extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
+				   unsigned long offset, size_t size,
+				   enum dma_data_direction dir,
+				   struct dma_attrs *attrs);
+extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
+			       size_t size, enum dma_data_direction dir,
+			       struct dma_attrs *attrs);
 
 extern int
 swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index d047de990a3f..ec7922bd0d61 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -636,11 +636,14 @@ swiotlb_full(struct device *dev, size_t size, int dir, int do_panic)
  * Once the device is given the dma address, the device owns this memory until
  * either swiotlb_unmap_single or swiotlb_dma_sync_single is performed.
  */
-dma_addr_t
-swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size,
-			 int dir, struct dma_attrs *attrs)
-{
-	dma_addr_t dev_addr = swiotlb_virt_to_bus(hwdev, ptr);
+dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
+			    unsigned long offset, size_t size,
+			    enum dma_data_direction dir,
+			    struct dma_attrs *attrs)
+{
+	phys_addr_t phys = page_to_phys(page) + offset;
+	void *ptr = page_address(page) + offset;
+	dma_addr_t dev_addr = swiotlb_phys_to_bus(dev, phys);
 	void *map;
 
 	BUG_ON(dir == DMA_NONE);
@@ -649,37 +652,30 @@ swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size,
 	 * we can safely return the device addr and not worry about bounce
 	 * buffering it.
 	 */
-	if (!address_needs_mapping(hwdev, dev_addr, size) &&
+	if (!address_needs_mapping(dev, dev_addr, size) &&
 	    !range_needs_mapping(ptr, size))
 		return dev_addr;
 
 	/*
 	 * Oh well, have to allocate and map a bounce buffer.
 	 */
-	map = map_single(hwdev, virt_to_phys(ptr), size, dir);
+	map = map_single(dev, phys, size, dir);
 	if (!map) {
-		swiotlb_full(hwdev, size, dir, 1);
+		swiotlb_full(dev, size, dir, 1);
 		map = io_tlb_overflow_buffer;
 	}
 
-	dev_addr = swiotlb_virt_to_bus(hwdev, map);
+	dev_addr = swiotlb_virt_to_bus(dev, map);
 
 	/*
 	 * Ensure that the address returned is DMA'ble
 	 */
-	if (address_needs_mapping(hwdev, dev_addr, size))
+	if (address_needs_mapping(dev, dev_addr, size))
 		panic("map_single: bounce buffer is not DMA'ble");
 
 	return dev_addr;
 }
-EXPORT_SYMBOL(swiotlb_map_single_attrs);
-
-dma_addr_t
-swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir)
-{
-	return swiotlb_map_single_attrs(hwdev, ptr, size, dir, NULL);
-}
-EXPORT_SYMBOL(swiotlb_map_single);
+EXPORT_SYMBOL_GPL(swiotlb_map_page);
 
 /*
  * Unmap a single streaming mode DMA translation.  The dma_addr and size must
@@ -689,9 +685,9 @@ EXPORT_SYMBOL(swiotlb_map_single);
  * After this call, reads by the cpu to the buffer are guaranteed to see
  * whatever the device wrote there.
  */
-void
-swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr,
-			   size_t size, int dir, struct dma_attrs *attrs)
+void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
+			size_t size, enum dma_data_direction dir,
+			struct dma_attrs *attrs)
 {
 	char *dma_addr = swiotlb_bus_to_virt(dev_addr);
 
@@ -701,15 +697,7 @@ swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr,
 	else if (dir == DMA_FROM_DEVICE)
 		dma_mark_clean(dma_addr, size);
 }
-EXPORT_SYMBOL(swiotlb_unmap_single_attrs);
-
-void
-swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size,
-		     int dir)
-{
-	return swiotlb_unmap_single_attrs(hwdev, dev_addr, size, dir, NULL);
-}
-EXPORT_SYMBOL(swiotlb_unmap_single);
+EXPORT_SYMBOL_GPL(swiotlb_unmap_page);
 
 /*
  * Make physical memory consistent for a single streaming mode DMA translation
-- 
cgit v1.2.3


From d506fc322ec2af04fc47be83d796a1c9e1a16022 Mon Sep 17 00:00:00 2001
From: Jani Nikula <ext-jani.1.nikula@nokia.com>
Date: Wed, 7 Jan 2009 11:54:25 +0200
Subject: ALSA: Add support for video out to the jack reporting API

Add support for reporting new jack types SND_JACK_VIDEOOUT and
SND_JACK_AVOUT (a combination of LINEOUT and VIDEOOUT) to the jack
reporting API.

Also add the corresponding SW_VIDEOOUT_INSERT switch to the input system
header.

Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/linux/input.h | 1 +
 include/sound/jack.h  | 2 ++
 sound/core/jack.c     | 1 +
 3 files changed, 4 insertions(+)

(limited to 'include')

diff --git a/include/linux/input.h b/include/linux/input.h
index 9a6355f74db2..adc13322d1d2 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -661,6 +661,7 @@ struct input_absinfo {
 #define SW_DOCK			0x05  /* set = plugged into dock */
 #define SW_LINEOUT_INSERT	0x06  /* set = inserted */
 #define SW_JACK_PHYSICAL_INSERT 0x07  /* set = mechanical switch set */
+#define SW_VIDEOOUT_INSERT	0x08  /* set = inserted */
 #define SW_MAX			0x0f
 #define SW_CNT			(SW_MAX+1)
 
diff --git a/include/sound/jack.h b/include/sound/jack.h
index 85266a2f5c6f..6b013c6f6a04 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -40,6 +40,8 @@ enum snd_jack_types {
 	SND_JACK_HEADSET	= SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
 	SND_JACK_LINEOUT	= 0x0004,
 	SND_JACK_MECHANICAL	= 0x0008, /* If detected separately */
+	SND_JACK_VIDEOOUT	= 0x0010,
+	SND_JACK_AVOUT		= SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
 };
 
 struct snd_jack {
diff --git a/sound/core/jack.c b/sound/core/jack.c
index b2da10c9916a..43b10d6e522b 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -28,6 +28,7 @@ static int jack_types[] = {
 	SW_MICROPHONE_INSERT,
 	SW_LINEOUT_INSERT,
 	SW_JACK_PHYSICAL_INSERT,
+	SW_VIDEOOUT_INSERT,
 };
 
 static int snd_jack_dev_free(struct snd_device *device)
-- 
cgit v1.2.3


From ca9c1aaec4187fc9922cfb6b283fffef89286943 Mon Sep 17 00:00:00 2001
From: Ian Molton <ian@mnementh.co.uk>
Date: Tue, 6 Jan 2009 20:11:51 +0000
Subject: ASoC: dapm: Allow explictly named mixer controls

This patch allows you to define the mixer paths as having the same name as the
paths they represent.

This is required to support codecs such as the wm9705 neatly without extra
controls in the alsa mixer.

Signed-off-by: Ian Molton <ian@mnementh.co.uk>
---
 Documentation/sound/alsa/soc/dapm.txt |  3 +++
 include/sound/soc-dapm.h              | 11 ++++++++
 sound/soc/soc-dapm.c                  | 47 +++++++++++++++++++++++++++--------
 3 files changed, 50 insertions(+), 11 deletions(-)

(limited to 'include')

diff --git a/Documentation/sound/alsa/soc/dapm.txt b/Documentation/sound/alsa/soc/dapm.txt
index 46f9684d0b29..9e6763264a2e 100644
--- a/Documentation/sound/alsa/soc/dapm.txt
+++ b/Documentation/sound/alsa/soc/dapm.txt
@@ -116,6 +116,9 @@ SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0),
 SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, wm8731_output_mixer_controls,
 	ARRAY_SIZE(wm8731_output_mixer_controls)),
 
+If you dont want the mixer elements prefixed with the name of the mixer widget,
+you can use SND_SOC_DAPM_MIXER_NAMED_CTL instead. the parameters are the same
+as for SND_SOC_DAPM_MIXER.
 
 2.3 Platform/Machine domain Widgets
 -----------------------------------
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 4af1083e3287..cc99dd404934 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -76,6 +76,11 @@
 	 wcontrols, wncontrols)\
 {	.id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols}
+#define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \
+	 wcontrols, wncontrols)\
+{       .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
+	.shift = wshift, .invert = winvert, .kcontrols = wcontrols, \
+	.num_kcontrols = wncontrols}
 #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \
 {	.id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
 	.invert = winvert, .kcontrols = NULL, .num_kcontrols = 0}
@@ -101,6 +106,11 @@
 {	.id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
 	.event = wevent, .event_flags = wflags}
+#define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
+	wcontrols, wncontrols, wevent, wflags) \
+{       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
+	.invert = winvert, .kcontrols = wcontrols, \
+	.num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
 #define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \
 {	.id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
 	.invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \
@@ -263,6 +273,7 @@ enum snd_soc_dapm_type {
 	snd_soc_dapm_mux,			/* selects 1 analog signal from many inputs */
 	snd_soc_dapm_value_mux,			/* selects 1 analog signal from many inputs */
 	snd_soc_dapm_mixer,			/* mixes several analog signals together */
+	snd_soc_dapm_mixer_named_ctl,		/* mixer with named controls */
 	snd_soc_dapm_pga,			/* programmable gain/attenuation (volume) */
 	snd_soc_dapm_adc,			/* analog to digital converter */
 	snd_soc_dapm_dac,			/* digital to analog converter */
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index ad0d801677c1..6362c7641ce5 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -54,14 +54,15 @@
 static int dapm_up_seq[] = {
 	snd_soc_dapm_pre, snd_soc_dapm_micbias, snd_soc_dapm_mic,
 	snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_dac,
-	snd_soc_dapm_mixer, snd_soc_dapm_pga, snd_soc_dapm_adc, snd_soc_dapm_hp,
-	snd_soc_dapm_spk, snd_soc_dapm_post
+	snd_soc_dapm_mixer, snd_soc_dapm_mixer_named_ctl, snd_soc_dapm_pga,
+	snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, snd_soc_dapm_post
 };
+
 static int dapm_down_seq[] = {
 	snd_soc_dapm_pre, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk,
-	snd_soc_dapm_pga, snd_soc_dapm_mixer, snd_soc_dapm_dac, snd_soc_dapm_mic,
-	snd_soc_dapm_micbias, snd_soc_dapm_mux, snd_soc_dapm_value_mux,
-	snd_soc_dapm_post
+	snd_soc_dapm_pga, snd_soc_dapm_mixer_named_ctl, snd_soc_dapm_mixer,
+	snd_soc_dapm_dac, snd_soc_dapm_mic, snd_soc_dapm_micbias,
+	snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_post
 };
 
 static int dapm_status = 1;
@@ -101,7 +102,8 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
 {
 	switch (w->id) {
 	case snd_soc_dapm_switch:
-	case snd_soc_dapm_mixer: {
+	case snd_soc_dapm_mixer:
+	case snd_soc_dapm_mixer_named_ctl: {
 		int val;
 		struct soc_mixer_control *mc = (struct soc_mixer_control *)
 			w->kcontrols[i].private_value;
@@ -347,15 +349,33 @@ static int dapm_new_mixer(struct snd_soc_codec *codec,
 			if (path->name != (char*)w->kcontrols[i].name)
 				continue;
 
-			/* add dapm control with long name */
-			name_len = 2 + strlen(w->name)
-				+ strlen(w->kcontrols[i].name);
+			/* add dapm control with long name.
+			 * for dapm_mixer this is the concatenation of the
+			 * mixer and kcontrol name.
+			 * for dapm_mixer_named_ctl this is simply the
+			 * kcontrol name.
+			 */
+			name_len = strlen(w->kcontrols[i].name) + 1;
+			if (w->id == snd_soc_dapm_mixer)
+				name_len += 1 + strlen(w->name);
+
 			path->long_name = kmalloc(name_len, GFP_KERNEL);
+
 			if (path->long_name == NULL)
 				return -ENOMEM;
 
-			snprintf(path->long_name, name_len, "%s %s",
-				 w->name, w->kcontrols[i].name);
+			switch (w->id) {
+			case snd_soc_dapm_mixer:
+			default:
+				snprintf(path->long_name, name_len, "%s %s",
+					 w->name, w->kcontrols[i].name);
+			break;
+			case snd_soc_dapm_mixer_named_ctl:
+				snprintf(path->long_name, name_len, "%s",
+					 w->kcontrols[i].name);
+			break;
+			}
+
 			path->long_name[name_len - 1] = '\0';
 
 			path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w,
@@ -711,6 +731,7 @@ static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action)
 		case snd_soc_dapm_adc:
 		case snd_soc_dapm_pga:
 		case snd_soc_dapm_mixer:
+		case snd_soc_dapm_mixer_named_ctl:
 			if (w->name) {
 				in = is_connected_input_ep(w);
 				dapm_clear_walk(w->codec);
@@ -822,6 +843,7 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
 	int found = 0;
 
 	if (widget->id != snd_soc_dapm_mixer &&
+	    widget->id != snd_soc_dapm_mixer_named_ctl &&
 	    widget->id != snd_soc_dapm_switch)
 		return -ENODEV;
 
@@ -875,6 +897,7 @@ static ssize_t dapm_widget_show(struct device *dev,
 		case snd_soc_dapm_adc:
 		case snd_soc_dapm_pga:
 		case snd_soc_dapm_mixer:
+		case snd_soc_dapm_mixer_named_ctl:
 			if (w->name)
 				count += sprintf(buf + count, "%s: %s\n",
 					w->name, w->power ? "On":"Off");
@@ -1058,6 +1081,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
 		break;
 	case snd_soc_dapm_switch:
 	case snd_soc_dapm_mixer:
+	case snd_soc_dapm_mixer_named_ctl:
 		ret = dapm_connect_mixer(codec, wsource, wsink, path, control);
 		if (ret != 0)
 			goto err;
@@ -1135,6 +1159,7 @@ int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec)
 		switch(w->id) {
 		case snd_soc_dapm_switch:
 		case snd_soc_dapm_mixer:
+		case snd_soc_dapm_mixer_named_ctl:
 			dapm_new_mixer(codec, w);
 			break;
 		case snd_soc_dapm_mux:
-- 
cgit v1.2.3


From 01d07820a0df6b6134c1bb75b1e84c9d0cdab3be Mon Sep 17 00:00:00 2001
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Date: Sun, 4 Jan 2009 03:11:05 +0900
Subject: sparseirq: make for_each_irq_desc() more robust

Raja reported for_each_irq_desc() has possibility unsafeness:

if anyone write folliwing code, for_each_irq_desc() doesn't work
as intended:

(right now this code does not exist at all)

 if (safe)
   for_each_irq_desc(irq, desc) {
      ...
   }
 else
   panic();

Reported-by: Raja R Harinath <harinath@hurrynot.org>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/irqnr.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index 86af92e9e84c..52ebbb4b161d 100644
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -28,13 +28,17 @@ extern struct irq_desc *irq_to_desc(unsigned int irq);
 # define for_each_irq_desc(irq, desc)					\
 	for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;		\
 	     irq++, desc = irq_to_desc(irq))				\
-		if (desc)
+		if (!desc)						\
+			;						\
+		else
 
 
 # define for_each_irq_desc_reverse(irq, desc)				\
 	for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0;	\
 	     irq--, desc = irq_to_desc(irq))				\
-		if (desc)
+		if (!desc)						\
+			;						\
+		else
 
 #endif /* CONFIG_GENERIC_HARDIRQS */
 
-- 
cgit v1.2.3


From 1649923dd52ce914be98bff0ae352344ef04f305 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Wed, 7 Jan 2009 18:25:13 +0000
Subject: ASoC: Constify pin names for DAPM pin status APIs

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/soc-dapm.h |  8 ++++----
 sound/soc/soc-dapm.c     | 10 +++++-----
 2 files changed, 9 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index cc99dd404934..075244ef41eb 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -260,10 +260,10 @@ int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
 int snd_soc_dapm_sys_add(struct device *dev);
 
 /* dapm audio pin control and status */
-int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, char *pin);
-int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, char *pin);
-int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, char *pin);
-int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin);
+int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin);
+int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin);
+int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin);
+int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin);
 int snd_soc_dapm_sync(struct snd_soc_codec *codec);
 
 /* dapm widget types */
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 6362c7641ce5..a35ce69d9d78 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -961,7 +961,7 @@ static void dapm_free_widgets(struct snd_soc_codec *codec)
 }
 
 static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec,
-	char *pin, int status)
+				const char *pin, int status)
 {
 	struct snd_soc_dapm_widget *w;
 
@@ -1643,7 +1643,7 @@ int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
  * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
  * do any widget power switching.
  */
-int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin)
 {
 	return snd_soc_dapm_set_pin(codec, pin, 1);
 }
@@ -1658,7 +1658,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
  * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
  * do any widget power switching.
  */
-int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin)
 {
 	return snd_soc_dapm_set_pin(codec, pin, 0);
 }
@@ -1678,7 +1678,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
  * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
  * do any widget power switching.
  */
-int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin)
 {
 	return snd_soc_dapm_set_pin(codec, pin, 0);
 }
@@ -1693,7 +1693,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin);
  *
  * Returns 1 for connected otherwise 0.
  */
-int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin)
 {
 	struct snd_soc_dapm_widget *w;
 
-- 
cgit v1.2.3


From 8a2cd6180f8fa00111843c2f4a4f4361995358e0 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Wed, 7 Jan 2009 17:31:10 +0000
Subject: ASoC: Add jack reporting interface

This patch adds a jack reporting interface to ASoC.  This wraps the ALSA
core jack detection functionality and provides integration with DAPM to
automatically update the power state of pins based on the jack state.

Since embedded platforms can have multiple detecton methods used for a
single jack (eg, separate microphone and headphone detection) the report
function allows specification of which bits are being updated on a given
report.

The expected usage is that machine drivers will create jack objects and
then configure jack detection methods to update that jack.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/soc.h  |  32 ++++++++++++
 sound/soc/Kconfig    |   1 +
 sound/soc/Makefile   |   2 +-
 sound/soc/soc-jack.c | 138 +++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 172 insertions(+), 1 deletion(-)
 create mode 100644 sound/soc/soc-jack.c

(limited to 'include')

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9b930d342116..9c3ef6a3e9fb 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -154,6 +154,8 @@ enum snd_soc_bias_level {
 	SND_SOC_BIAS_OFF,
 };
 
+struct snd_jack;
+struct snd_soc_card;
 struct snd_soc_device;
 struct snd_soc_pcm_stream;
 struct snd_soc_ops;
@@ -164,6 +166,8 @@ struct snd_soc_platform;
 struct snd_soc_codec;
 struct soc_enum;
 struct snd_soc_ac97_ops;
+struct snd_soc_jack;
+struct snd_soc_jack_pin;
 
 typedef int (*hw_write_t)(void *,const char* ,int);
 typedef int (*hw_read_t)(void *,char* ,int);
@@ -184,6 +188,13 @@ int snd_soc_init_card(struct snd_soc_device *socdev);
 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 	const struct snd_pcm_hardware *hw);
 
+/* Jack reporting */
+int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type,
+		     struct snd_soc_jack *jack);
+void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
+int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
+			  struct snd_soc_jack_pin *pins);
+
 /* codec IO */
 #define snd_soc_read(codec, reg) codec->read(codec, reg)
 #define snd_soc_write(codec, reg, value) codec->write(codec, reg, value)
@@ -239,6 +250,27 @@ int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
 
+/**
+ * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
+ *
+ * @pin:    name of the pin to update
+ * @mask:   bits to check for in reported jack status
+ * @invert: if non-zero then pin is enabled when status is not reported
+ */
+struct snd_soc_jack_pin {
+	struct list_head list;
+	const char *pin;
+	int mask;
+	bool invert;
+};
+
+struct snd_soc_jack {
+	struct snd_jack *jack;
+	struct snd_soc_card *card;
+	struct list_head pins;
+	int status;
+};
+
 /* SoC PCM stream information */
 struct snd_soc_pcm_stream {
 	char *stream_name;
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index ef025c66cc66..3d2bb6fc6dcc 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -6,6 +6,7 @@ menuconfig SND_SOC
 	tristate "ALSA for SoC audio support"
 	select SND_PCM
 	select AC97_BUS if SND_SOC_AC97_BUS
+	select SND_JACK if INPUT=y || INPUT=SND
 	---help---
 
 	  If you want ASoC support, you should say Y here and also to the
diff --git a/sound/soc/Makefile b/sound/soc/Makefile
index 86a9b1f5b0f3..0237879fd412 100644
--- a/sound/soc/Makefile
+++ b/sound/soc/Makefile
@@ -1,4 +1,4 @@
-snd-soc-core-objs := soc-core.o soc-dapm.o
+snd-soc-core-objs := soc-core.o soc-dapm.o soc-jack.o
 
 obj-$(CONFIG_SND_SOC)	+= snd-soc-core.o
 obj-$(CONFIG_SND_SOC)	+= codecs/
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
new file mode 100644
index 000000000000..8cc00c3cdf34
--- /dev/null
+++ b/sound/soc/soc-jack.c
@@ -0,0 +1,138 @@
+/*
+ * soc-jack.c  --  ALSA SoC jack handling
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ *  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.
+ */
+
+#include <sound/jack.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+/**
+ * snd_soc_jack_new - Create a new jack
+ * @card:  ASoC card
+ * @id:    an identifying string for this jack
+ * @type:  a bitmask of enum snd_jack_type values that can be detected by
+ *         this jack
+ * @jack:  structure to use for the jack
+ *
+ * Creates a new jack object.
+ *
+ * Returns zero if successful, or a negative error code on failure.
+ * On success jack will be initialised.
+ */
+int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type,
+		     struct snd_soc_jack *jack)
+{
+	jack->card = card;
+	INIT_LIST_HEAD(&jack->pins);
+
+	return snd_jack_new(card->socdev->codec->card, id, type, &jack->jack);
+}
+EXPORT_SYMBOL_GPL(snd_soc_jack_new);
+
+/**
+ * snd_soc_jack_report - Report the current status for a jack
+ *
+ * @jack:   the jack
+ * @status: a bitmask of enum snd_jack_type values that are currently detected.
+ * @mask:   a bitmask of enum snd_jack_type values that being reported.
+ *
+ * If configured using snd_soc_jack_add_pins() then the associated
+ * DAPM pins will be enabled or disabled as appropriate and DAPM
+ * synchronised.
+ *
+ * Note: This function uses mutexes and should be called from a
+ * context which can sleep (such as a workqueue).
+ */
+void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
+{
+	struct snd_soc_codec *codec = jack->card->socdev->codec;
+	struct snd_soc_jack_pin *pin;
+	int enable;
+	int oldstatus;
+
+	if (!jack) {
+		WARN_ON_ONCE(!jack);
+		return;
+	}
+
+	mutex_lock(&codec->mutex);
+
+	oldstatus = jack->status;
+
+	jack->status &= ~mask;
+	jack->status |= status;
+
+	/* The DAPM sync is expensive enough to be worth skipping */
+	if (jack->status == oldstatus)
+		goto out;
+
+	list_for_each_entry(pin, &jack->pins, list) {
+		enable = pin->mask & status;
+
+		if (pin->invert)
+			enable = !enable;
+
+		if (enable)
+			snd_soc_dapm_enable_pin(codec, pin->pin);
+		else
+			snd_soc_dapm_disable_pin(codec, pin->pin);
+	}
+
+	snd_soc_dapm_sync(codec);
+
+	snd_jack_report(jack->jack, status);
+
+out:
+	mutex_unlock(&codec->mutex);
+}
+EXPORT_SYMBOL_GPL(snd_soc_jack_report);
+
+/**
+ * snd_soc_jack_add_pins - Associate DAPM pins with an ASoC jack
+ *
+ * @jack:  ASoC jack
+ * @count: Number of pins
+ * @pins:  Array of pins
+ *
+ * After this function has been called the DAPM pins specified in the
+ * pins array will have their status updated to reflect the current
+ * state of the jack whenever the jack status is updated.
+ */
+int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
+			  struct snd_soc_jack_pin *pins)
+{
+	int i;
+
+	for (i = 0; i < count; i++) {
+		if (!pins[i].pin) {
+			printk(KERN_ERR "No name for pin %d\n", i);
+			return -EINVAL;
+		}
+		if (!pins[i].mask) {
+			printk(KERN_ERR "No mask for pin %d (%s)\n", i,
+			       pins[i].pin);
+			return -EINVAL;
+		}
+
+		INIT_LIST_HEAD(&pins[i].list);
+		list_add(&(pins[i].list), &jack->pins);
+	}
+
+	/* Update to reflect the last reported status; canned jack
+	 * implementations are likely to set their state before the
+	 * card has an opportunity to associate pins.
+	 */
+	snd_soc_jack_report(jack, 0, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_jack_add_pins);
-- 
cgit v1.2.3


From a6ba2b2dabb583e7820e567fb309d771b50cb9ff Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 8 Jan 2009 15:16:16 +0000
Subject: ASoC: Implement WM8350 headphone jack detection

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/linux/mfd/wm8350/audio.h |   1 +
 sound/soc/codecs/wm8350.c        | 116 +++++++++++++++++++++++++++++++++++++++
 sound/soc/codecs/wm8350.h        |   8 +++
 3 files changed, 125 insertions(+)

(limited to 'include')

diff --git a/include/linux/mfd/wm8350/audio.h b/include/linux/mfd/wm8350/audio.h
index af95a1d2f3a1..d899dc0223ba 100644
--- a/include/linux/mfd/wm8350/audio.h
+++ b/include/linux/mfd/wm8350/audio.h
@@ -490,6 +490,7 @@
 /*
  * R231 (0xE7) - Jack Status
  */
+#define WM8350_JACK_L_LVL			0x0800
 #define WM8350_JACK_R_LVL                       0x0400
 
 /*
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index e3989d406f54..47a9dabb5235 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -51,10 +51,17 @@ struct wm8350_output {
 	u16 mute;
 };
 
+struct wm8350_jack_data {
+	struct snd_soc_jack *jack;
+	int report;
+};
+
 struct wm8350_data {
 	struct snd_soc_codec codec;
 	struct wm8350_output out1;
 	struct wm8350_output out2;
+	struct wm8350_jack_data hpl;
+	struct wm8350_jack_data hpr;
 	struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
 };
 
@@ -1328,6 +1335,95 @@ static int wm8350_resume(struct platform_device *pdev)
 	return 0;
 }
 
+static void wm8350_hp_jack_handler(struct wm8350 *wm8350, int irq, void *data)
+{
+	struct wm8350_data *priv = data;
+	u16 reg;
+	int report;
+	int mask;
+	struct wm8350_jack_data *jack = NULL;
+
+	switch (irq) {
+	case WM8350_IRQ_CODEC_JCK_DET_L:
+		jack = &priv->hpl;
+		mask = WM8350_JACK_L_LVL;
+		break;
+
+	case WM8350_IRQ_CODEC_JCK_DET_R:
+		jack = &priv->hpr;
+		mask = WM8350_JACK_R_LVL;
+		break;
+
+	default:
+		BUG();
+	}
+
+	if (!jack->jack) {
+		dev_warn(wm8350->dev, "Jack interrupt called with no jack\n");
+		return;
+	}
+
+	/* Debounce */
+	msleep(200);
+
+	reg = wm8350_reg_read(wm8350, WM8350_JACK_PIN_STATUS);
+	if (reg & mask)
+		report = jack->report;
+	else
+		report = 0;
+
+	snd_soc_jack_report(jack->jack, report, jack->report);
+}
+
+/**
+ * wm8350_hp_jack_detect - Enable headphone jack detection.
+ *
+ * @codec:  WM8350 codec
+ * @which:  left or right jack detect signal
+ * @jack:   jack to report detection events on
+ * @report: value to report
+ *
+ * Enables the headphone jack detection of the WM8350.
+ */
+int wm8350_hp_jack_detect(struct snd_soc_codec *codec, enum wm8350_jack which,
+			  struct snd_soc_jack *jack, int report)
+{
+	struct wm8350_data *priv = codec->private_data;
+	struct wm8350 *wm8350 = codec->control_data;
+	int irq;
+	int ena;
+
+	switch (which) {
+	case WM8350_JDL:
+		priv->hpl.jack = jack;
+		priv->hpl.report = report;
+		irq = WM8350_IRQ_CODEC_JCK_DET_L;
+		ena = WM8350_JDL_ENA;
+		break;
+
+	case WM8350_JDR:
+		priv->hpr.jack = jack;
+		priv->hpr.report = report;
+		irq = WM8350_IRQ_CODEC_JCK_DET_R;
+		ena = WM8350_JDR_ENA;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA);
+	wm8350_set_bits(wm8350, WM8350_JACK_DETECT, ena);
+
+	/* Sync status */
+	wm8350_hp_jack_handler(wm8350, irq, priv);
+
+	wm8350_unmask_irq(wm8350, irq);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(wm8350_hp_jack_detect);
+
 static struct snd_soc_codec *wm8350_codec;
 
 static int wm8350_probe(struct platform_device *pdev)
@@ -1381,6 +1477,13 @@ static int wm8350_probe(struct platform_device *pdev)
 	wm8350_set_bits(wm8350, WM8350_ROUT2_VOLUME,
 			WM8350_OUT2_VU | WM8350_OUT2R_MUTE);
 
+	wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
+	wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);
+	wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L,
+			    wm8350_hp_jack_handler, priv);
+	wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R,
+			    wm8350_hp_jack_handler, priv);
+
 	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to create pcms\n");
@@ -1411,8 +1514,21 @@ static int wm8350_remove(struct platform_device *pdev)
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
 	struct snd_soc_codec *codec = socdev->codec;
 	struct wm8350 *wm8350 = codec->control_data;
+	struct wm8350_data *priv = codec->private_data;
 	int ret;
 
+	wm8350_clear_bits(wm8350, WM8350_JACK_DETECT,
+			  WM8350_JDL_ENA | WM8350_JDR_ENA);
+	wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA);
+
+	wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
+	wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);
+	wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
+	wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);
+
+	priv->hpl.jack = NULL;
+	priv->hpr.jack = NULL;
+
 	/* cancel any work waiting to be queued. */
 	ret = cancel_delayed_work(&codec->delayed_work);
 
diff --git a/sound/soc/codecs/wm8350.h b/sound/soc/codecs/wm8350.h
index cc2887aa6c38..d11bd9288cf9 100644
--- a/sound/soc/codecs/wm8350.h
+++ b/sound/soc/codecs/wm8350.h
@@ -17,4 +17,12 @@
 extern struct snd_soc_dai wm8350_dai;
 extern struct snd_soc_codec_device soc_codec_dev_wm8350;
 
+enum wm8350_jack {
+	WM8350_JDL = 1,
+	WM8350_JDR = 2,
+};
+
+int wm8350_hp_jack_detect(struct snd_soc_codec *codec, enum wm8350_jack which,
+			  struct snd_soc_jack *jack, int report);
+
 #endif
-- 
cgit v1.2.3


From 3e8e1952e3a3dd59b11233a532ca68e6471742d9 Mon Sep 17 00:00:00 2001
From: Ian Molton <ian@mnementh.co.uk>
Date: Fri, 9 Jan 2009 00:23:21 +0000
Subject: ASoC: cleanup duplicated code.

Many codec drivers were implementing cookie-cutter copies of the function
that adds kcontrols to the codec.

This patch moves this code to a common function snd_soc_add_controls() in
soc-core.c and updates all drivers using copies of this function to use the
new common version.

[Edited to raise priority of error log message and document parameters.
 -- broonie]

Signed-off-by: Ian Molton <ian@mnementh.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/soc.h            |  2 ++
 sound/soc/codecs/ad1980.c      | 17 ++------------
 sound/soc/codecs/ak4535.c      | 18 ++-------------
 sound/soc/codecs/ssm2602.c     | 18 ++-------------
 sound/soc/codecs/tlv320aic23.c | 21 ++----------------
 sound/soc/codecs/tlv320aic3x.c | 19 ++--------------
 sound/soc/codecs/twl4030.c     | 19 ++--------------
 sound/soc/codecs/uda134x.c     | 50 ++++++++++++++----------------------------
 sound/soc/codecs/uda1380.c     | 18 ++-------------
 sound/soc/codecs/wm8350.c      | 18 ++-------------
 sound/soc/codecs/wm8510.c      | 19 ++--------------
 sound/soc/codecs/wm8580.c      | 17 ++------------
 sound/soc/codecs/wm8728.c      | 18 ++-------------
 sound/soc/codecs/wm8731.c      | 19 ++--------------
 sound/soc/codecs/wm8750.c      | 18 ++-------------
 sound/soc/codecs/wm8753.c      | 18 ++-------------
 sound/soc/codecs/wm8900.c      | 19 ++--------------
 sound/soc/codecs/wm8903.c      | 18 ++-------------
 sound/soc/codecs/wm8971.c      | 18 ++-------------
 sound/soc/codecs/wm8990.c      | 18 ++-------------
 sound/soc/codecs/wm9712.c      | 18 ++-------------
 sound/soc/codecs/wm9713.c      | 18 ++-------------
 sound/soc/soc-core.c           | 31 ++++++++++++++++++++++++++
 23 files changed, 89 insertions(+), 360 deletions(-)

(limited to 'include')

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9c3ef6a3e9fb..9d5a0362a055 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -214,6 +214,8 @@ void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
  */
 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 	void *data, char *long_name);
+int snd_soc_add_controls(struct snd_soc_codec *codec,
+	const struct snd_kcontrol_new *controls, int num_controls);
 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_info *uinfo);
 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c
index 73fdbb4d4a3d..c3c5d0eee37a 100644
--- a/sound/soc/codecs/ad1980.c
+++ b/sound/soc/codecs/ad1980.c
@@ -93,20 +93,6 @@ SOC_ENUM("Capture Source", ad1980_cap_src),
 SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
 };
 
-/* add non dapm controls */
-static int ad1980_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(ad1980_snd_ac97_controls); i++) {
-		err = snd_ctl_add(codec->card, snd_soc_cnew(
-				&ad1980_snd_ac97_controls[i], codec, NULL));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
-
 static unsigned int ac97_read(struct snd_soc_codec *codec,
 	unsigned int reg)
 {
@@ -269,7 +255,8 @@ static int ad1980_soc_probe(struct platform_device *pdev)
 	ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
 	ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
 
-	ad1980_add_controls(codec);
+	snd_soc_add_controls(codec, ad1980_snd_ac97_controls,
+				ARRAY_SIZE(ad1980_snd_ac97_controls));
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
 		printk(KERN_ERR "ad1980: failed to register card\n");
diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c
index 81300d8d42ca..f17c363cb1db 100644
--- a/sound/soc/codecs/ak4535.c
+++ b/sound/soc/codecs/ak4535.c
@@ -155,21 +155,6 @@ static const struct snd_kcontrol_new ak4535_snd_controls[] = {
 	SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0),
 };
 
-/* add non dapm controls */
-static int ak4535_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(ak4535_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-			snd_soc_cnew(&ak4535_snd_controls[i], codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 /* Mono 1 Mixer */
 static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = {
 	SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0),
@@ -510,7 +495,8 @@ static int ak4535_init(struct snd_soc_device *socdev)
 	/* power on device */
 	ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-	ak4535_add_controls(codec);
+	snd_soc_add_controls(codec, ak4535_snd_controls,
+				ARRAY_SIZE(ak4535_snd_controls));
 	ak4535_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index cac373616768..ec7fe3b7b0cb 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -151,21 +151,6 @@ SOC_ENUM("Capture Source", ssm2602_enum[0]),
 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
 };
 
-/* add non dapm controls */
-static int ssm2602_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(ssm2602_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-			snd_soc_cnew(&ssm2602_snd_controls[i], codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 /* Output Mixer */
 static const struct snd_kcontrol_new ssm2602_output_mixer_controls[] = {
 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
@@ -622,7 +607,8 @@ static int ssm2602_init(struct snd_soc_device *socdev)
 			APANA_ENABLE_MIC_BOOST);
 	ssm2602_write(codec, SSM2602_PWR, 0);
 
-	ssm2602_add_controls(codec);
+	snd_soc_add_controls(codec, ssm2602_snd_controls,
+				ARRAY_SIZE(ssm2602_snd_controls));
 	ssm2602_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index cfdea007c4cb..a0e47c1dcd64 100644
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -183,24 +183,6 @@ static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
 	SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
 };
 
-/* add non dapm controls */
-static int tlv320aic23_add_controls(struct snd_soc_codec *codec)
-{
-
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(tlv320aic23_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&tlv320aic23_snd_controls[i],
-					       codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-
-}
-
 /* PGA Mixer controls for Line and Mic switch */
 static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
 	SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
@@ -718,7 +700,8 @@ static int tlv320aic23_init(struct snd_soc_device *socdev)
 
 	tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1);
 
-	tlv320aic23_add_controls(codec);
+	snd_soc_add_controls(codec, tlv320aic23_snd_controls,
+				ARRAY_SIZE(tlv320aic23_snd_controls));
 	tlv320aic23_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index b47a749c5ea2..36ab0198ca3f 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -311,22 +311,6 @@ static const struct snd_kcontrol_new aic3x_snd_controls[] = {
 	SOC_ENUM("ADC HPF Cut-off", aic3x_enum[ADC_HPF_ENUM]),
 };
 
-/* add non dapm controls */
-static int aic3x_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(aic3x_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&aic3x_snd_controls[i],
-					       codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 /* Left DAC Mux */
 static const struct snd_kcontrol_new aic3x_left_dac_mux_controls =
 SOC_DAPM_ENUM("Route", aic3x_enum[LDAC_ENUM]);
@@ -1224,7 +1208,8 @@ static int aic3x_init(struct snd_soc_device *socdev)
 	aic3x_write(codec, AIC3X_GPIO1_REG, (setup->gpio_func[0] & 0xf) << 4);
 	aic3x_write(codec, AIC3X_GPIO2_REG, (setup->gpio_func[1] & 0xf) << 4);
 
-	aic3x_add_controls(codec);
+	snd_soc_add_controls(codec, aic3x_snd_controls,
+				ARRAY_SIZE(aic3x_snd_controls));
 	aic3x_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index fd0f338374a7..253063fd319a 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -670,22 +670,6 @@ static const struct snd_kcontrol_new twl4030_snd_controls[] = {
 		0, 3, 5, 0, input_gain_tlv),
 };
 
-/* add non dapm controls */
-static int twl4030_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(twl4030_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&twl4030_snd_controls[i],
-						codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
 	/* Left channel inputs */
 	SND_SOC_DAPM_INPUT("MAINMIC"),
@@ -1233,7 +1217,8 @@ static int twl4030_init(struct snd_soc_device *socdev)
 	/* power on device */
 	twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-	twl4030_add_controls(codec);
+	snd_soc_add_controls(codec, twl4030_snd_controls,
+				ARRAY_SIZE(twl4030_snd_controls));
 	twl4030_add_widgets(codec);
 
 	ret = snd_soc_init_card(socdev);
diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c
index a2c5064a774b..277825d155a6 100644
--- a/sound/soc/codecs/uda134x.c
+++ b/sound/soc/codecs/uda134x.c
@@ -431,39 +431,6 @@ SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]),
 SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0),
 };
 
-static int uda134x_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i, n;
-	const struct snd_kcontrol_new *ctrls;
-	struct uda134x_platform_data *pd = codec->control_data;
-
-	switch (pd->model) {
-	case UDA134X_UDA1340:
-	case UDA134X_UDA1344:
-		n = ARRAY_SIZE(uda1340_snd_controls);
-		ctrls = uda1340_snd_controls;
-		break;
-	case UDA134X_UDA1341:
-		n = ARRAY_SIZE(uda1341_snd_controls);
-		ctrls = uda1341_snd_controls;
-		break;
-	default:
-		printk(KERN_ERR "%s unkown codec type: %d",
-		       __func__, pd->model);
-		return -EINVAL;
-	}
-
-	for (i = 0; i < n; i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&ctrls[i],
-					       codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 struct snd_soc_dai uda134x_dai = {
 	.name = "UDA134X",
 	/* playback capabilities */
@@ -572,7 +539,22 @@ static int uda134x_soc_probe(struct platform_device *pdev)
 		goto pcm_err;
 	}
 
-	ret = uda134x_add_controls(codec);
+	switch (pd->model) {
+	case UDA134X_UDA1340:
+	case UDA134X_UDA1344:
+		ret = snd_soc_add_controls(codec, uda1340_snd_controls,
+					ARRAY_SIZE(uda1340_snd_controls));
+	break;
+	case UDA134X_UDA1341:
+		ret = snd_soc_add_controls(codec, uda1341_snd_controls,
+					ARRAY_SIZE(uda1341_snd_controls));
+	break;
+	default:
+		printk(KERN_ERR "%s unkown codec type: %d",
+			__func__, pd->model);
+	return -EINVAL;
+	}
+
 	if (ret < 0) {
 		printk(KERN_ERR "UDA134X: failed to register controls\n");
 		goto pcm_err;
diff --git a/sound/soc/codecs/uda1380.c b/sound/soc/codecs/uda1380.c
index e6bf0844fbf3..a957b4365b9d 100644
--- a/sound/soc/codecs/uda1380.c
+++ b/sound/soc/codecs/uda1380.c
@@ -271,21 +271,6 @@ static const struct snd_kcontrol_new uda1380_snd_controls[] = {
 	SOC_SINGLE("AGC Switch", UDA1380_AGC, 0, 1, 0),
 };
 
-/* add non dapm controls */
-static int uda1380_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(uda1380_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-			snd_soc_cnew(&uda1380_snd_controls[i], codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 /* Input mux */
 static const struct snd_kcontrol_new uda1380_input_mux_control =
 	SOC_DAPM_ENUM("Route", uda1380_input_sel_enum);
@@ -675,7 +660,8 @@ static int uda1380_init(struct snd_soc_device *socdev, int dac_clk)
 	}
 
 	/* uda1380 init */
-	uda1380_add_controls(codec);
+	snd_soc_add_controls(codec, uda1380_snd_controls,
+				ARRAY_SIZE(uda1380_snd_controls));
 	uda1380_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index 47a9dabb5235..2e0db29b4998 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -782,21 +782,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
 	{"Beep", NULL, "IN3R PGA"},
 };
 
-static int wm8350_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8350_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&wm8350_snd_controls[i],
-					       codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 static int wm8350_add_widgets(struct snd_soc_codec *codec)
 {
 	int ret;
@@ -1490,7 +1475,8 @@ static int wm8350_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	wm8350_add_controls(codec);
+	snd_soc_add_controls(codec, wm8350_snd_controls,
+				ARRAY_SIZE(wm8350_snd_controls));
 	wm8350_add_widgets(codec);
 
 	wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
diff --git a/sound/soc/codecs/wm8510.c b/sound/soc/codecs/wm8510.c
index 40f8238df717..abe7cce87714 100644
--- a/sound/soc/codecs/wm8510.c
+++ b/sound/soc/codecs/wm8510.c
@@ -171,22 +171,6 @@ SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST,  8, 1, 0),
 SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
 };
 
-/* add non dapm controls */
-static int wm8510_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8510_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				snd_soc_cnew(&wm8510_snd_controls[i], codec,
-					NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 /* Speaker Output Mixer */
 static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
@@ -656,7 +640,8 @@ static int wm8510_init(struct snd_soc_device *socdev)
 	/* power on device */
 	codec->bias_level = SND_SOC_BIAS_OFF;
 	wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-	wm8510_add_controls(codec);
+	snd_soc_add_controls(codec, wm8510_snd_controls,
+				ARRAY_SIZE(wm8510_snd_controls));
 	wm8510_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index d004e5845298..9b75a377453e 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -330,20 +330,6 @@ SOC_DOUBLE("ADC Mute Switch", WM8580_ADC_CONTROL1, 0, 1, 1, 0),
 SOC_SINGLE("ADC High-Pass Filter Switch", WM8580_ADC_CONTROL1, 4, 1, 0),
 };
 
-/* Add non-DAPM controls */
-static int wm8580_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8580_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&wm8580_snd_controls[i],
-					       codec, NULL));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
 static const struct snd_soc_dapm_widget wm8580_dapm_widgets[] = {
 SND_SOC_DAPM_DAC("DAC1", "Playback", WM8580_PWRDN1, 2, 1),
 SND_SOC_DAPM_DAC("DAC2", "Playback", WM8580_PWRDN1, 3, 1),
@@ -866,7 +852,8 @@ static int wm8580_init(struct snd_soc_device *socdev)
 		goto pcm_err;
 	}
 
-	wm8580_add_controls(codec);
+	snd_soc_add_controls(codec, wm8580_snd_controls,
+				ARRAY_SIZE(wm8580_snd_controls));
 	wm8580_add_widgets(codec);
 
 	ret = snd_soc_init_card(socdev);
diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index 80b11983e137..defa310bc7d9 100644
--- a/sound/soc/codecs/wm8728.c
+++ b/sound/soc/codecs/wm8728.c
@@ -92,21 +92,6 @@ SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8728_DACLVOL, WM8728_DACRVOL,
 SOC_SINGLE("Deemphasis", WM8728_DACCTL, 1, 1, 0),
 };
 
-static int wm8728_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8728_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&wm8728_snd_controls[i],
-						codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 /*
  * DAPM controls.
  */
@@ -330,7 +315,8 @@ static int wm8728_init(struct snd_soc_device *socdev)
 	/* power on device */
 	wm8728_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-	wm8728_add_controls(codec);
+	snd_soc_add_controls(codec, wm8728_snd_controls,
+				ARRAY_SIZE(wm8728_snd_controls));
 	wm8728_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index c444b9f2701e..96d6e1aeaf43 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -129,22 +129,6 @@ SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0),
 SOC_ENUM("Playback De-emphasis", wm8731_enum[1]),
 };
 
-/* add non dapm controls */
-static int wm8731_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8731_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&wm8731_snd_controls[i],
-						codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 /* Output Mixer */
 static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = {
 SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0),
@@ -543,7 +527,8 @@ static int wm8731_init(struct snd_soc_device *socdev)
 	reg = wm8731_read_reg_cache(codec, WM8731_RINVOL);
 	wm8731_write(codec, WM8731_RINVOL, reg & ~0x0100);
 
-	wm8731_add_controls(codec);
+	snd_soc_add_controls(codec, wm8731_snd_controls,
+				ARRAY_SIZE(wm8731_snd_controls));
 	wm8731_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c
index 5997fa68e0d5..1578569793a2 100644
--- a/sound/soc/codecs/wm8750.c
+++ b/sound/soc/codecs/wm8750.c
@@ -231,21 +231,6 @@ SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0),
 
 };
 
-/* add non dapm controls */
-static int wm8750_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8750_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				snd_soc_cnew(&wm8750_snd_controls[i],
-						codec, NULL));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
-
 /*
  * DAPM Controls
  */
@@ -816,7 +801,8 @@ static int wm8750_init(struct snd_soc_device *socdev)
 	reg = wm8750_read_reg_cache(codec, WM8750_RINVOL);
 	wm8750_write(codec, WM8750_RINVOL, reg | 0x0100);
 
-	wm8750_add_controls(codec);
+	snd_soc_add_controls(codec, wm8750_snd_controls,
+				ARRAY_SIZE(wm8750_snd_controls));
 	wm8750_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 6c21b50c9375..7283178e0eb5 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -339,21 +339,6 @@ SOC_ENUM("ADC Data Select", wm8753_enum[27]),
 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
 };
 
-/* add non dapm controls */
-static int wm8753_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8753_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				snd_soc_cnew(&wm8753_snd_controls[i],
-						codec, NULL));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
-
 /*
  * _DAPM_ Controls
  */
@@ -1603,7 +1588,8 @@ static int wm8753_init(struct snd_soc_device *socdev)
 	reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
 	wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
 
-	wm8753_add_controls(codec);
+	snd_soc_add_controls(codec, wm8753_snd_controls,
+				ARRAY_SIZE(wm8753_snd_controls));
 	wm8753_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index 6767de10ded0..1e08d4f065f2 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -517,22 +517,6 @@ SOC_SINGLE("LINEOUT2 LP -12dB", WM8900_REG_LOUTMIXCTL1,
 
 };
 
-/* add non dapm controls */
-static int wm8900_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8900_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&wm8900_snd_controls[i],
-					       codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 static const struct snd_kcontrol_new wm8900_dapm_loutput2_control =
 SOC_DAPM_SINGLE("LINEOUT2L Switch", WM8900_REG_POWER3, 6, 1, 0);
 
@@ -1439,7 +1423,8 @@ static int wm8900_probe(struct platform_device *pdev)
 		goto pcm_err;
 	}
 
-	wm8900_add_controls(codec);
+	snd_soc_add_controls(codec, wm8900_snd_controls,
+				ARRAY_SIZE(wm8900_snd_controls));
 	wm8900_add_widgets(codec);
 
 	ret = snd_soc_init_card(socdev);
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index bde74546db4a..6ff34b957dce 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -744,21 +744,6 @@ SOC_DOUBLE_R_TLV("Speaker Volume",
 		 0, 63, 0, out_tlv),
 };
 
-static int wm8903_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8903_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&wm8903_snd_controls[i],
-					       codec, NULL));
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
-}
-
 static const struct snd_kcontrol_new linput_mode_mux =
 	SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
 
@@ -1737,7 +1722,8 @@ static int wm8903_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	wm8903_add_controls(socdev->codec);
+	snd_soc_add_controls(socdev->codec, wm8903_snd_controls,
+				ARRAY_SIZE(wm8903_snd_controls));
 	wm8903_add_widgets(socdev->codec);
 
 	ret = snd_soc_init_card(socdev);
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index 88ead7f8dd98..c8bd9b06f330 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -195,21 +195,6 @@ static const struct snd_kcontrol_new wm8971_snd_controls[] = {
 	SOC_DOUBLE_R("Mic Boost", WM8971_LADCIN, WM8971_RADCIN, 4, 3, 0),
 };
 
-/* add non-DAPM controls */
-static int wm8971_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8971_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				snd_soc_cnew(&wm8971_snd_controls[i],
-					     codec, NULL));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
-
 /*
  * DAPM Controls
  */
@@ -745,7 +730,8 @@ static int wm8971_init(struct snd_soc_device *socdev)
 	reg = wm8971_read_reg_cache(codec, WM8971_RINVOL);
 	wm8971_write(codec, WM8971_RINVOL, reg | 0x0100);
 
-	wm8971_add_controls(codec);
+	snd_soc_add_controls(codec, wm8971_snd_controls,
+				ARRAY_SIZE(wm8971_snd_controls));
 	wm8971_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 5b5afc144478..6b2778632d5e 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -417,21 +417,6 @@ SOC_SINGLE("RIN34 Mute Switch", WM8990_RIGHT_LINE_INPUT_3_4_VOLUME,
 
 };
 
-/* add non dapm controls */
-static int wm8990_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm8990_snd_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				snd_soc_cnew(&wm8990_snd_controls[i], codec,
-					NULL));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
-
 /*
  * _DAPM_ Controls
  */
@@ -1460,7 +1445,8 @@ static int wm8990_init(struct snd_soc_device *socdev)
 	wm8990_write(codec, WM8990_LEFT_OUTPUT_VOLUME, 0x50 | (1<<8));
 	wm8990_write(codec, WM8990_RIGHT_OUTPUT_VOLUME, 0x50 | (1<<8));
 
-	wm8990_add_controls(codec);
+	snd_soc_add_controls(codec, wm8990_snd_controls,
+				ARRAY_SIZE(wm8990_snd_controls));
 	wm8990_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index af83d629078a..1b0ace0f4dca 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -154,21 +154,6 @@ SOC_SINGLE("Mic 2 Volume", AC97_MIC, 0, 31, 1),
 SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 7, 1, 0),
 };
 
-/* add non dapm controls */
-static int wm9712_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm9712_snd_ac97_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				  snd_soc_cnew(&wm9712_snd_ac97_controls[i],
-					       codec, NULL));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
-
 /* We have to create a fake left and right HP mixers because
  * the codec only has a single control that is shared by both channels.
  * This makes it impossible to determine the audio path.
@@ -698,7 +683,8 @@ static int wm9712_soc_probe(struct platform_device *pdev)
 	ac97_write(codec, AC97_VIDEO, ac97_read(codec, AC97_VIDEO) | 0x3000);
 
 	wm9712_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-	wm9712_add_controls(codec);
+	snd_soc_add_controls(codec, wm9712_snd_ac97_controls,
+				ARRAY_SIZE(wm9712_snd_ac97_controls));
 	wm9712_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index f3ca8aaf0139..a45622620db7 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -190,21 +190,6 @@ SOC_SINGLE("3D Lower Cut-off Switch", AC97_REC_GAIN_MIC, 4, 1, 0),
 SOC_SINGLE("3D Depth", AC97_REC_GAIN_MIC, 0, 15, 1),
 };
 
-/* add non dapm controls */
-static int wm9713_add_controls(struct snd_soc_codec *codec)
-{
-	int err, i;
-
-	for (i = 0; i < ARRAY_SIZE(wm9713_snd_ac97_controls); i++) {
-		err = snd_ctl_add(codec->card,
-				snd_soc_cnew(&wm9713_snd_ac97_controls[i],
-					codec, NULL));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
-
 /* We have to create a fake left and right HP mixers because
  * the codec only has a single control that is shared by both channels.
  * This makes it impossible to determine the audio path using the current
@@ -1245,7 +1230,8 @@ static int wm9713_soc_probe(struct platform_device *pdev)
 	reg = ac97_read(codec, AC97_CD) & 0x7fff;
 	ac97_write(codec, AC97_CD, reg);
 
-	wm9713_add_controls(codec);
+	snd_soc_add_controls(codec, wm9713_snd_ac97_controls,
+				ARRAY_SIZE(wm9713_snd_ac97_controls));
 	wm9713_add_widgets(codec);
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 6cbe7e82f238..d3b97a7542e0 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1494,6 +1494,37 @@ struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 }
 EXPORT_SYMBOL_GPL(snd_soc_cnew);
 
+/**
+ * snd_soc_add_controls - add an array of controls to a codec.
+ * Convienience function to add a list of controls. Many codecs were
+ * duplicating this code.
+ *
+ * @codec: codec to add controls to
+ * @controls: array of controls to add
+ * @num_controls: number of elements in the array
+ *
+ * Return 0 for success, else error.
+ */
+int snd_soc_add_controls(struct snd_soc_codec *codec,
+	const struct snd_kcontrol_new *controls, int num_controls)
+{
+	struct snd_card *card = codec->card;
+	int err, i;
+
+	for (i = 0; i < num_controls; i++) {
+		const struct snd_kcontrol_new *control = &controls[i];
+		err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL));
+		if (err < 0) {
+			dev_err(codec->dev, "%s: Failed to add %s\n",
+				codec->name, control->name);
+			return err;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_add_controls);
+
 /**
  * snd_soc_info_enum_double - enumerated double mixer info callback
  * @kcontrol: mixer control
-- 
cgit v1.2.3


From d7e51e66899f95dabc89b4d4c6674a6e50fa37fc Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Wed, 7 Jan 2009 15:03:13 -0800
Subject: sparseirq: make some func to be used with genirq

Impact: clean up sparseirq fallout on random.c

Ingo suggested to change some ifdef from SPARSE_IRQ to GENERIC_HARDIRQS
so we could some #ifdef later if all arch support genirq

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 drivers/char/random.c        | 2 +-
 drivers/pci/intr_remapping.c | 2 +-
 include/linux/irq.h          | 6 ++----
 include/linux/kernel_stat.h  | 6 +++---
 kernel/irq/handle.c          | 7 ++++---
 5 files changed, 11 insertions(+), 12 deletions(-)

(limited to 'include')

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 7c13581ca9cd..a778918c8f42 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -558,7 +558,7 @@ struct timer_rand_state {
 	unsigned dont_count_entropy:1;
 };
 
-#ifndef CONFIG_SPARSE_IRQ
+#ifndef CONFIG_GENERIC_HARDIRQS
 
 static struct timer_rand_state *irq_timer_state[NR_IRQS];
 
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index f78371b22529..3d604132a04f 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -20,7 +20,7 @@ struct irq_2_iommu {
 	u8  irte_mask;
 };
 
-#ifdef CONFIG_SPARSE_IRQ
+#ifdef CONFIG_GENERIC_HARDIRQS
 static struct irq_2_iommu *get_one_free_irq_2_iommu(int cpu)
 {
 	struct irq_2_iommu *iommu;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index f899b502f186..e9a878978c85 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -160,12 +160,10 @@ struct irq_2_iommu;
  */
 struct irq_desc {
 	unsigned int		irq;
-#ifdef CONFIG_SPARSE_IRQ
 	struct timer_rand_state *timer_rand_state;
 	unsigned int            *kstat_irqs;
-# ifdef CONFIG_INTR_REMAP
+#ifdef CONFIG_INTR_REMAP
 	struct irq_2_iommu      *irq_2_iommu;
-# endif
 #endif
 	irq_flow_handler_t	handle_irq;
 	struct irq_chip		*chip;
@@ -202,13 +200,13 @@ extern void arch_free_chip_data(struct irq_desc *old_desc, struct irq_desc *desc
 extern struct irq_desc irq_desc[NR_IRQS];
 #else /* CONFIG_SPARSE_IRQ */
 extern struct irq_desc *move_irq_desc(struct irq_desc *old_desc, int cpu);
+#endif /* CONFIG_SPARSE_IRQ */
 
 #define kstat_irqs_this_cpu(DESC) \
 	((DESC)->kstat_irqs[smp_processor_id()])
 #define kstat_incr_irqs_this_cpu(irqno, DESC) \
 	((DESC)->kstat_irqs[smp_processor_id()]++)
 
-#endif /* CONFIG_SPARSE_IRQ */
 
 extern struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu);
 
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 570d20413119..a3431b164bea 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -28,7 +28,7 @@ struct cpu_usage_stat {
 
 struct kernel_stat {
 	struct cpu_usage_stat	cpustat;
-#ifndef CONFIG_SPARSE_IRQ
+#ifndef CONFIG_GENERIC_HARDIRQS
        unsigned int irqs[NR_IRQS];
 #endif
 };
@@ -41,7 +41,7 @@ DECLARE_PER_CPU(struct kernel_stat, kstat);
 
 extern unsigned long long nr_context_switches(void);
 
-#ifndef CONFIG_SPARSE_IRQ
+#ifndef CONFIG_GENERIC_HARDIRQS
 #define kstat_irqs_this_cpu(irq) \
 	(kstat_this_cpu.irqs[irq])
 
@@ -55,7 +55,7 @@ static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
 #endif
 
 
-#ifndef CONFIG_SPARSE_IRQ
+#ifndef CONFIG_GENERIC_HARDIRQS
 static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
 {
        return kstat_cpu(cpu).irqs[irq];
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index c20db0be9173..48299a8a22f8 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -213,6 +213,7 @@ struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned_in_smp = {
 	}
 };
 
+static unsigned int kstat_irqs_all[NR_IRQS][NR_CPUS];
 int __init early_irq_init(void)
 {
 	struct irq_desc *desc;
@@ -222,8 +223,10 @@ int __init early_irq_init(void)
 	desc = irq_desc;
 	count = ARRAY_SIZE(irq_desc);
 
-	for (i = 0; i < count; i++)
+	for (i = 0; i < count; i++) {
 		desc[i].irq = i;
+		desc[i].kstat_irqs = kstat_irqs_all[i];
+	}
 
 	return arch_early_irq_init();
 }
@@ -451,12 +454,10 @@ void early_init_irq_lock_class(void)
 	}
 }
 
-#ifdef CONFIG_SPARSE_IRQ
 unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 	return desc ? desc->kstat_irqs[cpu] : 0;
 }
-#endif
 EXPORT_SYMBOL(kstat_irqs_cpu);
 
-- 
cgit v1.2.3


From 0b8698ab5847cbe25775083659f00c658a8161c9 Mon Sep 17 00:00:00 2001
From: Ian Campbell <Ian.Campbell@citrix.com>
Date: Fri, 9 Jan 2009 18:32:09 +0000
Subject: swiotlb: range_needs_mapping should take a physical address.

The swiotlb_arch_range_needs_mapping() hook should take a physical
address rather than a virtual address in order to support highmem pages.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/pci-swiotlb_64.c |  2 +-
 include/linux/swiotlb.h          |  2 +-
 lib/swiotlb.c                    | 10 +++++-----
 3 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index 5e32c4f6a7ba..34f12e9996ed 100644
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -33,7 +33,7 @@ phys_addr_t swiotlb_bus_to_phys(dma_addr_t baddr)
 	return baddr;
 }
 
-int __weak swiotlb_arch_range_needs_mapping(void *ptr, size_t size)
+int __weak swiotlb_arch_range_needs_mapping(phys_addr_t paddr, size_t size)
 {
 	return 0;
 }
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 493dc17e7c87..ac9ff54f7cb3 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -31,7 +31,7 @@ extern dma_addr_t swiotlb_phys_to_bus(struct device *hwdev,
 				      phys_addr_t address);
 extern phys_addr_t swiotlb_bus_to_phys(dma_addr_t address);
 
-extern int swiotlb_arch_range_needs_mapping(void *ptr, size_t size);
+extern int swiotlb_arch_range_needs_mapping(phys_addr_t paddr, size_t size);
 
 extern void
 *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 30fe65ede2bb..31bae40830ca 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -145,7 +145,7 @@ static void *swiotlb_bus_to_virt(dma_addr_t address)
 	return phys_to_virt(swiotlb_bus_to_phys(address));
 }
 
-int __weak swiotlb_arch_range_needs_mapping(void *ptr, size_t size)
+int __weak swiotlb_arch_range_needs_mapping(phys_addr_t paddr, size_t size)
 {
 	return 0;
 }
@@ -315,9 +315,9 @@ address_needs_mapping(struct device *hwdev, dma_addr_t addr, size_t size)
 	return !is_buffer_dma_capable(dma_get_mask(hwdev), addr, size);
 }
 
-static inline int range_needs_mapping(void *ptr, size_t size)
+static inline int range_needs_mapping(phys_addr_t paddr, size_t size)
 {
-	return swiotlb_force || swiotlb_arch_range_needs_mapping(ptr, size);
+	return swiotlb_force || swiotlb_arch_range_needs_mapping(paddr, size);
 }
 
 static int is_swiotlb_buffer(char *addr)
@@ -653,7 +653,7 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 	 * buffering it.
 	 */
 	if (!address_needs_mapping(dev, dev_addr, size) &&
-	    !range_needs_mapping(ptr, size))
+	    !range_needs_mapping(virt_to_phys(ptr), size))
 		return dev_addr;
 
 	/*
@@ -804,7 +804,7 @@ swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
 		void *addr = sg_virt(sg);
 		dma_addr_t dev_addr = swiotlb_virt_to_bus(hwdev, addr);
 
-		if (range_needs_mapping(addr, sg->length) ||
+		if (range_needs_mapping(sg_phys(sg), sg->length) ||
 		    address_needs_mapping(hwdev, dev_addr, sg->length)) {
 			void *map = map_single(hwdev, sg_phys(sg),
 					       sg->length, dir);
-- 
cgit v1.2.3


From 53fb1e63599438bd5f6fbb852023d80916d83983 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@alsa3.local>
Date: Sun, 28 Dec 2008 16:32:08 +0100
Subject: ALSA: Introduce snd_card_create()

Introduced snd_card_create() function as a replacement of snd_card_new().
The new function returns a negative error code so that the probe callback
can return the proper error code, while snd_card_new() can give only NULL
check.

The old snd_card_new() is still provided as an inline function but with
__deprecated attribute.  It'll be removed soon later.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/core.h | 14 +++++++++++++-
 sound/core/init.c    | 47 +++++++++++++++++++++++++++++++----------------
 2 files changed, 44 insertions(+), 17 deletions(-)

(limited to 'include')

diff --git a/include/sound/core.h b/include/sound/core.h
index f632484bc743..25420c3b5513 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -296,8 +296,20 @@ int snd_card_locked(int card);
 extern int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int cmd);
 #endif
 
+int snd_card_create(int idx, const char *id,
+		    struct module *module, int extra_size,
+		    struct snd_card **card_ret);
+
+static inline __deprecated
 struct snd_card *snd_card_new(int idx, const char *id,
-			 struct module *module, int extra_size);
+			      struct module *module, int extra_size)
+{
+	struct snd_card *card;
+	if (snd_card_create(idx, id, module, extra_size, &card) < 0)
+		return NULL;
+	return card;
+}
+
 int snd_card_disconnect(struct snd_card *card);
 int snd_card_free(struct snd_card *card);
 int snd_card_free_when_closed(struct snd_card *card);
diff --git a/sound/core/init.c b/sound/core/init.c
index 0d5520c415d3..dc4b80c7f311 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -121,31 +121,44 @@ static inline int init_info_for_card(struct snd_card *card)
 #endif
 
 /**
- *  snd_card_new - create and initialize a soundcard structure
+ *  snd_card_create - create and initialize a soundcard structure
  *  @idx: card index (address) [0 ... (SNDRV_CARDS-1)]
  *  @xid: card identification (ASCII string)
  *  @module: top level module for locking
  *  @extra_size: allocate this extra size after the main soundcard structure
+ *  @card_ret: the pointer to store the created card instance
  *
  *  Creates and initializes a soundcard structure.
  *
- *  Returns kmallocated snd_card structure. Creates the ALSA control interface
- *  (which is blocked until snd_card_register function is called).
+ *  The function allocates snd_card instance via kzalloc with the given
+ *  space for the driver to use freely.  The allocated struct is stored
+ *  in the given card_ret pointer.
+ *
+ *  Returns zero if successful or a negative error code.
  */
-struct snd_card *snd_card_new(int idx, const char *xid,
-			 struct module *module, int extra_size)
+int snd_card_create(int idx, const char *xid,
+		    struct module *module, int extra_size,
+		    struct snd_card **card_ret)
 {
 	struct snd_card *card;
 	int err, idx2;
 
+	if (snd_BUG_ON(!card_ret))
+		return -EINVAL;
+	*card_ret = NULL;
+
 	if (extra_size < 0)
 		extra_size = 0;
 	card = kzalloc(sizeof(*card) + extra_size, GFP_KERNEL);
-	if (card == NULL)
-		return NULL;
+	if (!card)
+		return -ENOMEM;
 	if (xid) {
-		if (!snd_info_check_reserved_words(xid))
+		if (!snd_info_check_reserved_words(xid)) {
+			snd_printk(KERN_ERR
+				   "given id string '%s' is reserved.\n", xid);
+			err = -EBUSY;
 			goto __error;
+		}
 		strlcpy(card->id, xid, sizeof(card->id));
 	}
 	err = 0;
@@ -202,26 +215,28 @@ struct snd_card *snd_card_new(int idx, const char *xid,
 #endif
 	/* the control interface cannot be accessed from the user space until */
 	/* snd_cards_bitmask and snd_cards are set with snd_card_register */
-	if ((err = snd_ctl_create(card)) < 0) {
-		snd_printd("unable to register control minors\n");
+	err = snd_ctl_create(card);
+	if (err < 0) {
+		snd_printk(KERN_ERR "unable to register control minors\n");
 		goto __error;
 	}
-	if ((err = snd_info_card_create(card)) < 0) {
-		snd_printd("unable to create card info\n");
+	err = snd_info_card_create(card);
+	if (err < 0) {
+		snd_printk(KERN_ERR "unable to create card info\n");
 		goto __error_ctl;
 	}
 	if (extra_size > 0)
 		card->private_data = (char *)card + sizeof(struct snd_card);
-	return card;
+	*card_ret = card;
+	return 0;
 
       __error_ctl:
 	snd_device_free_all(card, SNDRV_DEV_CMD_PRE);
       __error:
 	kfree(card);
-      	return NULL;
+  	return err;
 }
-
-EXPORT_SYMBOL(snd_card_new);
+EXPORT_SYMBOL(snd_card_create);
 
 /* return non-zero if a card is already locked */
 int snd_card_locked(int card)
-- 
cgit v1.2.3


From 831451ac4e44d3a20b581ce726ef1d1144373f7d Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Wed, 14 Jan 2009 12:39:18 +0100
Subject: sched: introduce avg_wakeup

Introduce a new avg_wakeup statistic.

avg_wakeup is a measure of how frequently a task wakes up other tasks, it
represents the average time between wakeups, with a limit of avg_runtime
for when it doesn't wake up anybody.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/sched.h |  3 +++
 kernel/sched.c        | 36 ++++++++++++++++++++++++++++++------
 kernel/sched_debug.c  |  1 +
 3 files changed, 34 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4cae9b81a1f8..daf4e07bc978 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1046,6 +1046,9 @@ struct sched_entity {
 	u64			exec_max;
 	u64			slice_max;
 
+	u64			start_runtime;
+	u64			avg_wakeup;
+
 	u64			nr_migrations;
 	u64			nr_migrations_cold;
 	u64			nr_failed_migrations_affine;
diff --git a/kernel/sched.c b/kernel/sched.c
index 8be2c13b50d0..86f5a063f0b9 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1705,6 +1705,9 @@ static void update_avg(u64 *avg, u64 sample)
 
 static void enqueue_task(struct rq *rq, struct task_struct *p, int wakeup)
 {
+	if (wakeup)
+		p->se.start_runtime = p->se.sum_exec_runtime;
+
 	sched_info_queued(p);
 	p->sched_class->enqueue_task(rq, p, wakeup);
 	p->se.on_rq = 1;
@@ -1712,10 +1715,15 @@ static void enqueue_task(struct rq *rq, struct task_struct *p, int wakeup)
 
 static void dequeue_task(struct rq *rq, struct task_struct *p, int sleep)
 {
-	if (sleep && p->se.last_wakeup) {
-		update_avg(&p->se.avg_overlap,
-			   p->se.sum_exec_runtime - p->se.last_wakeup);
-		p->se.last_wakeup = 0;
+	if (sleep) {
+		if (p->se.last_wakeup) {
+			update_avg(&p->se.avg_overlap,
+				p->se.sum_exec_runtime - p->se.last_wakeup);
+			p->se.last_wakeup = 0;
+		} else {
+			update_avg(&p->se.avg_wakeup,
+				sysctl_sched_wakeup_granularity);
+		}
 	}
 
 	sched_info_dequeued(p);
@@ -2345,6 +2353,22 @@ out_activate:
 	activate_task(rq, p, 1);
 	success = 1;
 
+	/*
+	 * Only attribute actual wakeups done by this task.
+	 */
+	if (!in_interrupt()) {
+		struct sched_entity *se = &current->se;
+		u64 sample = se->sum_exec_runtime;
+
+		if (se->last_wakeup)
+			sample -= se->last_wakeup;
+		else
+			sample -= se->start_runtime;
+		update_avg(&se->avg_wakeup, sample);
+
+		se->last_wakeup = se->sum_exec_runtime;
+	}
+
 out_running:
 	trace_sched_wakeup(rq, p, success);
 	check_preempt_curr(rq, p, sync);
@@ -2355,8 +2379,6 @@ out_running:
 		p->sched_class->task_wake_up(rq, p);
 #endif
 out:
-	current->se.last_wakeup = current->se.sum_exec_runtime;
-
 	task_rq_unlock(rq, &flags);
 
 	return success;
@@ -2386,6 +2408,8 @@ static void __sched_fork(struct task_struct *p)
 	p->se.prev_sum_exec_runtime	= 0;
 	p->se.last_wakeup		= 0;
 	p->se.avg_overlap		= 0;
+	p->se.start_runtime		= 0;
+	p->se.avg_wakeup		= sysctl_sched_wakeup_granularity;
 
 #ifdef CONFIG_SCHEDSTATS
 	p->se.wait_start		= 0;
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 16eeba4e4169..2b1260f0e800 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -397,6 +397,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 	PN(se.vruntime);
 	PN(se.sum_exec_runtime);
 	PN(se.avg_overlap);
+	PN(se.avg_wakeup);
 
 	nr_switches = p->nvcsw + p->nivcsw;
 
-- 
cgit v1.2.3


From 34cb61359b503d7aff6447acb037a5efd6ce93b2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 16 Jan 2009 13:36:06 +0100
Subject: sched: fix !CONFIG_SCHEDSTATS build failure

Stephen Rothwell reported this linux-next build failure with !CONFIG_SCHEDSTATS:

| In file included from kernel/sched.c:1703:
| kernel/sched_fair.c: In function 'adaptive_gran':
| kernel/sched_fair.c:1324: error: 'struct sched_entity' has no member named 'avg_wakeup'

The start_runtime and avg_wakeup metrics are now not just for statistics,
but also for scheduling - so they always need to be available. (Also
move out the nr_migrations fields - for future perfcounters usage.)

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/sched.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/linux/sched.h b/include/linux/sched.h
index daf4e07bc978..5d56b54350a5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1031,6 +1031,10 @@ struct sched_entity {
 	u64			last_wakeup;
 	u64			avg_overlap;
 
+	u64			start_runtime;
+	u64			avg_wakeup;
+	u64			nr_migrations;
+
 #ifdef CONFIG_SCHEDSTATS
 	u64			wait_start;
 	u64			wait_max;
@@ -1046,10 +1050,6 @@ struct sched_entity {
 	u64			exec_max;
 	u64			slice_max;
 
-	u64			start_runtime;
-	u64			avg_wakeup;
-
-	u64			nr_migrations;
 	u64			nr_migrations_cold;
 	u64			nr_failed_migrations_affine;
 	u64			nr_failed_migrations_running;
-- 
cgit v1.2.3


From 74296a8ed6aa3c5bf672808ada690de7ba323ecc Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 16 Jan 2009 17:43:50 +0100
Subject: irq: provide debug_poll_all_shared_irqs() method under
 CONFIG_DEBUG_SHIRQ

Provide a shared interrupt debug facility under CONFIG_DEBUG_SHIRQ:
it uses the existing irqpoll facilities to iterate through all
registered interrupt handlers and call those which can handle shared
IRQ lines.

This can be handy for suspend/resume debugging: if we call this function
early during resume we can trigger crashes in those drivers which have
incorrect assumptions about when exactly their ISRs will be called
during suspend/resume.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/interrupt.h |  6 ++++++
 kernel/irq/spurious.c     | 14 +++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 9127f6b51a39..468e3a25a4a1 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -462,6 +462,12 @@ static inline void init_irq_proc(void)
 }
 #endif
 
+#if defined(CONFIG_GENERIC_HARDIRQS) && defined(CONFIG_DEBUG_SHIRQ)
+extern void debug_poll_all_shared_irqs(void);
+#else
+static inline void debug_poll_all_shared_irqs(void) { }
+#endif
+
 int show_interrupts(struct seq_file *p, void *v);
 
 struct irq_desc;
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index dd364c11e56e..4d568294de3e 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -104,7 +104,7 @@ static int misrouted_irq(int irq)
 	return ok;
 }
 
-static void poll_spurious_irqs(unsigned long dummy)
+static void poll_all_shared_irqs(void)
 {
 	struct irq_desc *desc;
 	int i;
@@ -123,11 +123,23 @@ static void poll_spurious_irqs(unsigned long dummy)
 
 		try_one_irq(i, desc);
 	}
+}
+
+static void poll_spurious_irqs(unsigned long dummy)
+{
+	poll_all_shared_irqs();
 
 	mod_timer(&poll_spurious_irq_timer,
 		  jiffies + POLL_SPURIOUS_IRQ_INTERVAL);
 }
 
+#ifdef CONFIG_DEBUG_SHIRQ
+void debug_poll_all_shared_irqs(void)
+{
+	poll_all_shared_irqs();
+}
+#endif
+
 /*
  * If 99,900 of the previous 100,000 interrupts have not been handled
  * then assume that the IRQ is stuck in some manner. Drop a diagnostic
-- 
cgit v1.2.3


From 9c3da0991754d480328eeaa2b90cb231a1cea9b6 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Sat, 17 Jan 2009 17:11:57 -0800
Subject: IB: Remove __constant_{endian} uses

The base versions handle constant folding just fine, use them
directly.  The replacements are OK in the include/ files as they are
not exported to userspace so we don't need the __ prefixed versions.

This patch does not affect code generation at all.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/infiniband/core/cm.c                  | 15 ++---
 drivers/infiniband/core/cm_msgs.h             | 22 +++----
 drivers/infiniband/core/mad_rmpp.c            |  2 +-
 drivers/infiniband/hw/cxgb3/iwch_qp.c         |  4 +-
 drivers/infiniband/hw/ehca/ehca_sqp.c         |  8 +--
 drivers/infiniband/hw/ipath/ipath_eeprom.c    |  4 +-
 drivers/infiniband/hw/ipath/ipath_mad.c       | 95 +++++++++++++--------------
 drivers/infiniband/hw/ipath/ipath_rc.c        |  2 +-
 drivers/infiniband/hw/ipath/ipath_sdma.c      |  4 +-
 drivers/infiniband/hw/ipath/ipath_uc.c        |  2 +-
 drivers/infiniband/hw/ipath/ipath_ud.c        |  4 +-
 drivers/infiniband/hw/ipath/ipath_user_sdma.c |  6 +-
 drivers/infiniband/hw/ipath/ipath_verbs.c     |  2 +-
 drivers/infiniband/hw/ipath/ipath_verbs.h     | 10 +--
 drivers/infiniband/hw/mlx4/qp.c               | 22 +++----
 include/rdma/ib_cm.h                          | 12 ++--
 include/rdma/ib_mad.h                         |  2 +-
 include/rdma/ib_smi.h                         | 34 +++++-----
 18 files changed, 124 insertions(+), 126 deletions(-)

(limited to 'include')

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index f1e82a92e61e..5130fc55b8e2 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -927,8 +927,7 @@ int ib_cm_listen(struct ib_cm_id *cm_id, __be64 service_id, __be64 service_mask,
 	unsigned long flags;
 	int ret = 0;
 
-	service_mask = service_mask ? service_mask :
-		       __constant_cpu_to_be64(~0ULL);
+	service_mask = service_mask ? service_mask : ~cpu_to_be64(0);
 	service_id &= service_mask;
 	if ((service_id & IB_SERVICE_ID_AGN_MASK) == IB_CM_ASSIGN_SERVICE_ID &&
 	    (service_id != IB_CM_ASSIGN_SERVICE_ID))
@@ -954,7 +953,7 @@ int ib_cm_listen(struct ib_cm_id *cm_id, __be64 service_id, __be64 service_mask,
 	spin_lock_irqsave(&cm.lock, flags);
 	if (service_id == IB_CM_ASSIGN_SERVICE_ID) {
 		cm_id->service_id = cpu_to_be64(cm.listen_service_id++);
-		cm_id->service_mask = __constant_cpu_to_be64(~0ULL);
+		cm_id->service_mask = ~cpu_to_be64(0);
 	} else {
 		cm_id->service_id = service_id;
 		cm_id->service_mask = service_mask;
@@ -1134,7 +1133,7 @@ int ib_send_cm_req(struct ib_cm_id *cm_id,
 			goto error1;
 	}
 	cm_id->service_id = param->service_id;
-	cm_id->service_mask = __constant_cpu_to_be64(~0ULL);
+	cm_id->service_mask = ~cpu_to_be64(0);
 	cm_id_priv->timeout_ms = cm_convert_to_ms(
 				    param->primary_path->packet_life_time) * 2 +
 				 cm_convert_to_ms(
@@ -1545,7 +1544,7 @@ static int cm_req_handler(struct cm_work *work)
 	cm_id_priv->id.cm_handler = listen_cm_id_priv->id.cm_handler;
 	cm_id_priv->id.context = listen_cm_id_priv->id.context;
 	cm_id_priv->id.service_id = req_msg->service_id;
-	cm_id_priv->id.service_mask = __constant_cpu_to_be64(~0ULL);
+	cm_id_priv->id.service_mask = ~cpu_to_be64(0);
 
 	cm_process_routed_req(req_msg, work->mad_recv_wc->wc);
 	cm_format_paths_from_req(req_msg, &work->path[0], &work->path[1]);
@@ -2898,7 +2897,7 @@ int ib_send_cm_sidr_req(struct ib_cm_id *cm_id,
 		goto out;
 
 	cm_id->service_id = param->service_id;
-	cm_id->service_mask = __constant_cpu_to_be64(~0ULL);
+	cm_id->service_mask = ~cpu_to_be64(0);
 	cm_id_priv->timeout_ms = param->timeout_ms;
 	cm_id_priv->max_cm_retries = param->max_cm_retries;
 	ret = cm_alloc_msg(cm_id_priv, &msg);
@@ -2992,7 +2991,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
 	cm_id_priv->id.cm_handler = cur_cm_id_priv->id.cm_handler;
 	cm_id_priv->id.context = cur_cm_id_priv->id.context;
 	cm_id_priv->id.service_id = sidr_req_msg->service_id;
-	cm_id_priv->id.service_mask = __constant_cpu_to_be64(~0ULL);
+	cm_id_priv->id.service_mask = ~cpu_to_be64(0);
 
 	cm_format_sidr_req_event(work, &cur_cm_id_priv->id);
 	cm_process_work(cm_id_priv, work);
@@ -3789,7 +3788,7 @@ static int __init ib_cm_init(void)
 	rwlock_init(&cm.device_lock);
 	spin_lock_init(&cm.lock);
 	cm.listen_service_table = RB_ROOT;
-	cm.listen_service_id = __constant_be64_to_cpu(IB_CM_ASSIGN_SERVICE_ID);
+	cm.listen_service_id = be64_to_cpu(IB_CM_ASSIGN_SERVICE_ID);
 	cm.remote_id_table = RB_ROOT;
 	cm.remote_qp_table = RB_ROOT;
 	cm.remote_sidr_table = RB_ROOT;
diff --git a/drivers/infiniband/core/cm_msgs.h b/drivers/infiniband/core/cm_msgs.h
index aec9c7af825d..7e63c08f697c 100644
--- a/drivers/infiniband/core/cm_msgs.h
+++ b/drivers/infiniband/core/cm_msgs.h
@@ -44,17 +44,17 @@
 
 #define IB_CM_CLASS_VERSION	2 /* IB specification 1.2 */
 
-#define CM_REQ_ATTR_ID	    __constant_htons(0x0010)
-#define CM_MRA_ATTR_ID	    __constant_htons(0x0011)
-#define CM_REJ_ATTR_ID	    __constant_htons(0x0012)
-#define CM_REP_ATTR_ID	    __constant_htons(0x0013)
-#define CM_RTU_ATTR_ID	    __constant_htons(0x0014)
-#define CM_DREQ_ATTR_ID	    __constant_htons(0x0015)
-#define CM_DREP_ATTR_ID	    __constant_htons(0x0016)
-#define CM_SIDR_REQ_ATTR_ID __constant_htons(0x0017)
-#define CM_SIDR_REP_ATTR_ID __constant_htons(0x0018)
-#define CM_LAP_ATTR_ID      __constant_htons(0x0019)
-#define CM_APR_ATTR_ID      __constant_htons(0x001A)
+#define CM_REQ_ATTR_ID		cpu_to_be16(0x0010)
+#define CM_MRA_ATTR_ID		cpu_to_be16(0x0011)
+#define CM_REJ_ATTR_ID		cpu_to_be16(0x0012)
+#define CM_REP_ATTR_ID		cpu_to_be16(0x0013)
+#define CM_RTU_ATTR_ID		cpu_to_be16(0x0014)
+#define CM_DREQ_ATTR_ID		cpu_to_be16(0x0015)
+#define CM_DREP_ATTR_ID		cpu_to_be16(0x0016)
+#define CM_SIDR_REQ_ATTR_ID	cpu_to_be16(0x0017)
+#define CM_SIDR_REP_ATTR_ID	cpu_to_be16(0x0018)
+#define CM_LAP_ATTR_ID		cpu_to_be16(0x0019)
+#define CM_APR_ATTR_ID		cpu_to_be16(0x001A)
 
 enum cm_msg_sequence {
 	CM_MSG_SEQUENCE_REQ,
diff --git a/drivers/infiniband/core/mad_rmpp.c b/drivers/infiniband/core/mad_rmpp.c
index 3af2b84cd838..57a3c6f947b2 100644
--- a/drivers/infiniband/core/mad_rmpp.c
+++ b/drivers/infiniband/core/mad_rmpp.c
@@ -735,7 +735,7 @@ process_rmpp_data(struct ib_mad_agent_private *agent,
 		goto bad;
 	}
 
-	if (rmpp_hdr->seg_num == __constant_htonl(1)) {
+	if (rmpp_hdr->seg_num == cpu_to_be32(1)) {
 		if (!(ib_get_rmpp_flags(rmpp_hdr) & IB_MGMT_RMPP_FLAG_FIRST)) {
 			rmpp_status = IB_MGMT_RMPP_STATUS_BAD_SEG;
 			goto bad;
diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index 19661b2f0406..48e2b0bcabd0 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -99,8 +99,8 @@ static int build_rdma_write(union t3_wr *wqe, struct ib_send_wr *wr,
 	if (wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) {
 		plen = 4;
 		wqe->write.sgl[0].stag = wr->ex.imm_data;
-		wqe->write.sgl[0].len = __constant_cpu_to_be32(0);
-		wqe->write.num_sgle = __constant_cpu_to_be32(0);
+		wqe->write.sgl[0].len = cpu_to_be32(0);
+		wqe->write.num_sgle = cpu_to_be32(0);
 		*flit_cnt = 6;
 	} else {
 		plen = 0;
diff --git a/drivers/infiniband/hw/ehca/ehca_sqp.c b/drivers/infiniband/hw/ehca/ehca_sqp.c
index 44447aaa5501..c568b28f4e20 100644
--- a/drivers/infiniband/hw/ehca/ehca_sqp.c
+++ b/drivers/infiniband/hw/ehca/ehca_sqp.c
@@ -46,11 +46,11 @@
 #include "ehca_iverbs.h"
 #include "hcp_if.h"
 
-#define IB_MAD_STATUS_REDIRECT		__constant_htons(0x0002)
-#define IB_MAD_STATUS_UNSUP_VERSION	__constant_htons(0x0004)
-#define IB_MAD_STATUS_UNSUP_METHOD	__constant_htons(0x0008)
+#define IB_MAD_STATUS_REDIRECT		cpu_to_be16(0x0002)
+#define IB_MAD_STATUS_UNSUP_VERSION	cpu_to_be16(0x0004)
+#define IB_MAD_STATUS_UNSUP_METHOD	cpu_to_be16(0x0008)
 
-#define IB_PMA_CLASS_PORT_INFO		__constant_htons(0x0001)
+#define IB_PMA_CLASS_PORT_INFO		cpu_to_be16(0x0001)
 
 /**
  * ehca_define_sqp - Defines special queue pair 1 (GSI QP). When special queue
diff --git a/drivers/infiniband/hw/ipath/ipath_eeprom.c b/drivers/infiniband/hw/ipath/ipath_eeprom.c
index dc37277f1c80..fc7181985e8e 100644
--- a/drivers/infiniband/hw/ipath/ipath_eeprom.c
+++ b/drivers/infiniband/hw/ipath/ipath_eeprom.c
@@ -772,8 +772,8 @@ void ipath_get_eeprom_info(struct ipath_devdata *dd)
 			 "0x%x, not 0x%x\n", csum, ifp->if_csum);
 		goto done;
 	}
-	if (*(__be64 *) ifp->if_guid == 0ULL ||
-	    *(__be64 *) ifp->if_guid == __constant_cpu_to_be64(-1LL)) {
+	if (*(__be64 *) ifp->if_guid == cpu_to_be64(0) ||
+	    *(__be64 *) ifp->if_guid == ~cpu_to_be64(0)) {
 		ipath_dev_err(dd, "Invalid GUID %llx from flash; "
 			      "ignoring\n",
 			      *(unsigned long long *) ifp->if_guid);
diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c b/drivers/infiniband/hw/ipath/ipath_mad.c
index 17a123197477..16a702d46018 100644
--- a/drivers/infiniband/hw/ipath/ipath_mad.c
+++ b/drivers/infiniband/hw/ipath/ipath_mad.c
@@ -37,10 +37,10 @@
 #include "ipath_verbs.h"
 #include "ipath_common.h"
 
-#define IB_SMP_UNSUP_VERSION	__constant_htons(0x0004)
-#define IB_SMP_UNSUP_METHOD	__constant_htons(0x0008)
-#define IB_SMP_UNSUP_METH_ATTR	__constant_htons(0x000C)
-#define IB_SMP_INVALID_FIELD	__constant_htons(0x001C)
+#define IB_SMP_UNSUP_VERSION	cpu_to_be16(0x0004)
+#define IB_SMP_UNSUP_METHOD	cpu_to_be16(0x0008)
+#define IB_SMP_UNSUP_METH_ATTR	cpu_to_be16(0x000C)
+#define IB_SMP_INVALID_FIELD	cpu_to_be16(0x001C)
 
 static int reply(struct ib_smp *smp)
 {
@@ -789,12 +789,12 @@ static int recv_subn_set_pkeytable(struct ib_smp *smp,
 	return recv_subn_get_pkeytable(smp, ibdev);
 }
 
-#define IB_PMA_CLASS_PORT_INFO		__constant_htons(0x0001)
-#define IB_PMA_PORT_SAMPLES_CONTROL	__constant_htons(0x0010)
-#define IB_PMA_PORT_SAMPLES_RESULT	__constant_htons(0x0011)
-#define IB_PMA_PORT_COUNTERS		__constant_htons(0x0012)
-#define IB_PMA_PORT_COUNTERS_EXT	__constant_htons(0x001D)
-#define IB_PMA_PORT_SAMPLES_RESULT_EXT	__constant_htons(0x001E)
+#define IB_PMA_CLASS_PORT_INFO		cpu_to_be16(0x0001)
+#define IB_PMA_PORT_SAMPLES_CONTROL	cpu_to_be16(0x0010)
+#define IB_PMA_PORT_SAMPLES_RESULT	cpu_to_be16(0x0011)
+#define IB_PMA_PORT_COUNTERS		cpu_to_be16(0x0012)
+#define IB_PMA_PORT_COUNTERS_EXT	cpu_to_be16(0x001D)
+#define IB_PMA_PORT_SAMPLES_RESULT_EXT	cpu_to_be16(0x001E)
 
 struct ib_perf {
 	u8 base_version;
@@ -884,19 +884,19 @@ struct ib_pma_portcounters {
 	__be32 port_rcv_packets;
 } __attribute__ ((packed));
 
-#define IB_PMA_SEL_SYMBOL_ERROR			__constant_htons(0x0001)
-#define IB_PMA_SEL_LINK_ERROR_RECOVERY		__constant_htons(0x0002)
-#define IB_PMA_SEL_LINK_DOWNED			__constant_htons(0x0004)
-#define IB_PMA_SEL_PORT_RCV_ERRORS		__constant_htons(0x0008)
-#define IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS	__constant_htons(0x0010)
-#define IB_PMA_SEL_PORT_XMIT_DISCARDS		__constant_htons(0x0040)
-#define IB_PMA_SEL_LOCAL_LINK_INTEGRITY_ERRORS	__constant_htons(0x0200)
-#define IB_PMA_SEL_EXCESSIVE_BUFFER_OVERRUNS	__constant_htons(0x0400)
-#define IB_PMA_SEL_PORT_VL15_DROPPED		__constant_htons(0x0800)
-#define IB_PMA_SEL_PORT_XMIT_DATA		__constant_htons(0x1000)
-#define IB_PMA_SEL_PORT_RCV_DATA		__constant_htons(0x2000)
-#define IB_PMA_SEL_PORT_XMIT_PACKETS		__constant_htons(0x4000)
-#define IB_PMA_SEL_PORT_RCV_PACKETS		__constant_htons(0x8000)
+#define IB_PMA_SEL_SYMBOL_ERROR			cpu_to_be16(0x0001)
+#define IB_PMA_SEL_LINK_ERROR_RECOVERY		cpu_to_be16(0x0002)
+#define IB_PMA_SEL_LINK_DOWNED			cpu_to_be16(0x0004)
+#define IB_PMA_SEL_PORT_RCV_ERRORS		cpu_to_be16(0x0008)
+#define IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS	cpu_to_be16(0x0010)
+#define IB_PMA_SEL_PORT_XMIT_DISCARDS		cpu_to_be16(0x0040)
+#define IB_PMA_SEL_LOCAL_LINK_INTEGRITY_ERRORS	cpu_to_be16(0x0200)
+#define IB_PMA_SEL_EXCESSIVE_BUFFER_OVERRUNS	cpu_to_be16(0x0400)
+#define IB_PMA_SEL_PORT_VL15_DROPPED		cpu_to_be16(0x0800)
+#define IB_PMA_SEL_PORT_XMIT_DATA		cpu_to_be16(0x1000)
+#define IB_PMA_SEL_PORT_RCV_DATA		cpu_to_be16(0x2000)
+#define IB_PMA_SEL_PORT_XMIT_PACKETS		cpu_to_be16(0x4000)
+#define IB_PMA_SEL_PORT_RCV_PACKETS		cpu_to_be16(0x8000)
 
 struct ib_pma_portcounters_ext {
 	u8 reserved;
@@ -913,14 +913,14 @@ struct ib_pma_portcounters_ext {
 	__be64 port_multicast_rcv_packets;
 } __attribute__ ((packed));
 
-#define IB_PMA_SELX_PORT_XMIT_DATA		__constant_htons(0x0001)
-#define IB_PMA_SELX_PORT_RCV_DATA		__constant_htons(0x0002)
-#define IB_PMA_SELX_PORT_XMIT_PACKETS		__constant_htons(0x0004)
-#define IB_PMA_SELX_PORT_RCV_PACKETS		__constant_htons(0x0008)
-#define IB_PMA_SELX_PORT_UNI_XMIT_PACKETS	__constant_htons(0x0010)
-#define IB_PMA_SELX_PORT_UNI_RCV_PACKETS	__constant_htons(0x0020)
-#define IB_PMA_SELX_PORT_MULTI_XMIT_PACKETS	__constant_htons(0x0040)
-#define IB_PMA_SELX_PORT_MULTI_RCV_PACKETS	__constant_htons(0x0080)
+#define IB_PMA_SELX_PORT_XMIT_DATA		cpu_to_be16(0x0001)
+#define IB_PMA_SELX_PORT_RCV_DATA		cpu_to_be16(0x0002)
+#define IB_PMA_SELX_PORT_XMIT_PACKETS		cpu_to_be16(0x0004)
+#define IB_PMA_SELX_PORT_RCV_PACKETS		cpu_to_be16(0x0008)
+#define IB_PMA_SELX_PORT_UNI_XMIT_PACKETS	cpu_to_be16(0x0010)
+#define IB_PMA_SELX_PORT_UNI_RCV_PACKETS	cpu_to_be16(0x0020)
+#define IB_PMA_SELX_PORT_MULTI_XMIT_PACKETS	cpu_to_be16(0x0040)
+#define IB_PMA_SELX_PORT_MULTI_RCV_PACKETS	cpu_to_be16(0x0080)
 
 static int recv_pma_get_classportinfo(struct ib_perf *pmp)
 {
@@ -933,7 +933,7 @@ static int recv_pma_get_classportinfo(struct ib_perf *pmp)
 		pmp->status |= IB_SMP_INVALID_FIELD;
 
 	/* Indicate AllPortSelect is valid (only one port anyway) */
-	p->cap_mask = __constant_cpu_to_be16(1 << 8);
+	p->cap_mask = cpu_to_be16(1 << 8);
 	p->base_version = 1;
 	p->class_version = 1;
 	/*
@@ -951,12 +951,11 @@ static int recv_pma_get_classportinfo(struct ib_perf *pmp)
  * We support 5 counters which only count the mandatory quantities.
  */
 #define COUNTER_MASK(q, n) (q << ((9 - n) * 3))
-#define COUNTER_MASK0_9 \
-	__constant_cpu_to_be32(COUNTER_MASK(1, 0) | \
-			       COUNTER_MASK(1, 1) | \
-			       COUNTER_MASK(1, 2) | \
-			       COUNTER_MASK(1, 3) | \
-			       COUNTER_MASK(1, 4))
+#define COUNTER_MASK0_9 cpu_to_be32(COUNTER_MASK(1, 0) | \
+				    COUNTER_MASK(1, 1) | \
+				    COUNTER_MASK(1, 2) | \
+				    COUNTER_MASK(1, 3) | \
+				    COUNTER_MASK(1, 4))
 
 static int recv_pma_get_portsamplescontrol(struct ib_perf *pmp,
 					   struct ib_device *ibdev, u8 port)
@@ -1137,7 +1136,7 @@ static int recv_pma_get_portsamplesresult_ext(struct ib_perf *pmp,
 		status = dev->pma_sample_status;
 	p->sample_status = cpu_to_be16(status);
 	/* 64 bits */
-	p->extended_width = __constant_cpu_to_be32(0x80000000);
+	p->extended_width = cpu_to_be32(0x80000000);
 	for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++)
 		p->counter[i] = (status != IB_PMA_SAMPLE_STATUS_DONE) ? 0 :
 		    cpu_to_be64(
@@ -1185,7 +1184,7 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
 		pmp->status |= IB_SMP_INVALID_FIELD;
 
 	if (cntrs.symbol_error_counter > 0xFFFFUL)
-		p->symbol_error_counter = __constant_cpu_to_be16(0xFFFF);
+		p->symbol_error_counter = cpu_to_be16(0xFFFF);
 	else
 		p->symbol_error_counter =
 			cpu_to_be16((u16)cntrs.symbol_error_counter);
@@ -1199,17 +1198,17 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
 	else
 		p->link_downed_counter = (u8)cntrs.link_downed_counter;
 	if (cntrs.port_rcv_errors > 0xFFFFUL)
-		p->port_rcv_errors = __constant_cpu_to_be16(0xFFFF);
+		p->port_rcv_errors = cpu_to_be16(0xFFFF);
 	else
 		p->port_rcv_errors =
 			cpu_to_be16((u16) cntrs.port_rcv_errors);
 	if (cntrs.port_rcv_remphys_errors > 0xFFFFUL)
-		p->port_rcv_remphys_errors = __constant_cpu_to_be16(0xFFFF);
+		p->port_rcv_remphys_errors = cpu_to_be16(0xFFFF);
 	else
 		p->port_rcv_remphys_errors =
 			cpu_to_be16((u16)cntrs.port_rcv_remphys_errors);
 	if (cntrs.port_xmit_discards > 0xFFFFUL)
-		p->port_xmit_discards = __constant_cpu_to_be16(0xFFFF);
+		p->port_xmit_discards = cpu_to_be16(0xFFFF);
 	else
 		p->port_xmit_discards =
 			cpu_to_be16((u16)cntrs.port_xmit_discards);
@@ -1220,24 +1219,24 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp,
 	p->lli_ebor_errors = (cntrs.local_link_integrity_errors << 4) |
 		cntrs.excessive_buffer_overrun_errors;
 	if (cntrs.vl15_dropped > 0xFFFFUL)
-		p->vl15_dropped = __constant_cpu_to_be16(0xFFFF);
+		p->vl15_dropped = cpu_to_be16(0xFFFF);
 	else
 		p->vl15_dropped = cpu_to_be16((u16)cntrs.vl15_dropped);
 	if (cntrs.port_xmit_data > 0xFFFFFFFFUL)
-		p->port_xmit_data = __constant_cpu_to_be32(0xFFFFFFFF);
+		p->port_xmit_data = cpu_to_be32(0xFFFFFFFF);
 	else
 		p->port_xmit_data = cpu_to_be32((u32)cntrs.port_xmit_data);
 	if (cntrs.port_rcv_data > 0xFFFFFFFFUL)
-		p->port_rcv_data = __constant_cpu_to_be32(0xFFFFFFFF);
+		p->port_rcv_data = cpu_to_be32(0xFFFFFFFF);
 	else
 		p->port_rcv_data = cpu_to_be32((u32)cntrs.port_rcv_data);
 	if (cntrs.port_xmit_packets > 0xFFFFFFFFUL)
-		p->port_xmit_packets = __constant_cpu_to_be32(0xFFFFFFFF);
+		p->port_xmit_packets = cpu_to_be32(0xFFFFFFFF);
 	else
 		p->port_xmit_packets =
 			cpu_to_be32((u32)cntrs.port_xmit_packets);
 	if (cntrs.port_rcv_packets > 0xFFFFFFFFUL)
-		p->port_rcv_packets = __constant_cpu_to_be32(0xFFFFFFFF);
+		p->port_rcv_packets = cpu_to_be32(0xFFFFFFFF);
 	else
 		p->port_rcv_packets =
 			cpu_to_be32((u32) cntrs.port_rcv_packets);
diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
index 9170710b950d..79b3dbc97179 100644
--- a/drivers/infiniband/hw/ipath/ipath_rc.c
+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
@@ -1744,7 +1744,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
 		/* Signal completion event if the solicited bit is set. */
 		ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
 			       (ohdr->bth[0] &
-				__constant_cpu_to_be32(1 << 23)) != 0);
+				cpu_to_be32(1 << 23)) != 0);
 		break;
 
 	case OP(RDMA_WRITE_FIRST):
diff --git a/drivers/infiniband/hw/ipath/ipath_sdma.c b/drivers/infiniband/hw/ipath/ipath_sdma.c
index 8e255adf5d9b..4b0698590850 100644
--- a/drivers/infiniband/hw/ipath/ipath_sdma.c
+++ b/drivers/infiniband/hw/ipath/ipath_sdma.c
@@ -781,10 +781,10 @@ retry:
 		descqp = &dd->ipath_sdma_descq[dd->ipath_sdma_descq_cnt].qw[0];
 	descqp -= 2;
 	/* SDmaLastDesc */
-	descqp[0] |= __constant_cpu_to_le64(1ULL << 11);
+	descqp[0] |= cpu_to_le64(1ULL << 11);
 	if (tx->txreq.flags & IPATH_SDMA_TXREQ_F_INTREQ) {
 		/* SDmaIntReq */
-		descqp[0] |= __constant_cpu_to_le64(1ULL << 15);
+		descqp[0] |= cpu_to_le64(1ULL << 15);
 	}
 
 	/* Commit writes to memory and advance the tail on the chip */
diff --git a/drivers/infiniband/hw/ipath/ipath_uc.c b/drivers/infiniband/hw/ipath/ipath_uc.c
index 82cc588b8bf2..22e60998f1a7 100644
--- a/drivers/infiniband/hw/ipath/ipath_uc.c
+++ b/drivers/infiniband/hw/ipath/ipath_uc.c
@@ -419,7 +419,7 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
 		/* Signal completion event if the solicited bit is set. */
 		ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
 			       (ohdr->bth[0] &
-				__constant_cpu_to_be32(1 << 23)) != 0);
+				cpu_to_be32(1 << 23)) != 0);
 		break;
 
 	case OP(RDMA_WRITE_FIRST):
diff --git a/drivers/infiniband/hw/ipath/ipath_ud.c b/drivers/infiniband/hw/ipath/ipath_ud.c
index 91c74cc797ae..6076cb61bf6a 100644
--- a/drivers/infiniband/hw/ipath/ipath_ud.c
+++ b/drivers/infiniband/hw/ipath/ipath_ud.c
@@ -370,7 +370,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
 	 */
 	ohdr->bth[1] = ah_attr->dlid >= IPATH_MULTICAST_LID_BASE &&
 		ah_attr->dlid != IPATH_PERMISSIVE_LID ?
-		__constant_cpu_to_be32(IPATH_MULTICAST_QPN) :
+		cpu_to_be32(IPATH_MULTICAST_QPN) :
 		cpu_to_be32(wqe->wr.wr.ud.remote_qpn);
 	ohdr->bth[2] = cpu_to_be32(qp->s_next_psn++ & IPATH_PSN_MASK);
 	/*
@@ -573,7 +573,7 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
 	/* Signal completion event if the solicited bit is set. */
 	ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
 		       (ohdr->bth[0] &
-			__constant_cpu_to_be32(1 << 23)) != 0);
+			cpu_to_be32(1 << 23)) != 0);
 
 bail:;
 }
diff --git a/drivers/infiniband/hw/ipath/ipath_user_sdma.c b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
index 82d9a0b5ca2f..7bff4b9baa0a 100644
--- a/drivers/infiniband/hw/ipath/ipath_user_sdma.c
+++ b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
@@ -667,13 +667,13 @@ static inline __le64 ipath_sdma_make_desc0(struct ipath_devdata *dd,
 
 static inline __le64 ipath_sdma_make_first_desc0(__le64 descq)
 {
-	return descq | __constant_cpu_to_le64(1ULL << 12);
+	return descq | cpu_to_le64(1ULL << 12);
 }
 
 static inline __le64 ipath_sdma_make_last_desc0(__le64 descq)
 {
 					      /* last */  /* dma head */
-	return descq | __constant_cpu_to_le64(1ULL << 11 | 1ULL << 13);
+	return descq | cpu_to_le64(1ULL << 11 | 1ULL << 13);
 }
 
 static inline __le64 ipath_sdma_make_desc1(u64 addr)
@@ -763,7 +763,7 @@ static int ipath_user_sdma_push_pkts(struct ipath_devdata *dd,
 		if (ofs >= IPATH_SMALLBUF_DWORDS) {
 			for (i = 0; i < pkt->naddr; i++) {
 				dd->ipath_sdma_descq[dtail].qw[0] |=
-					__constant_cpu_to_le64(1ULL << 14);
+					cpu_to_le64(1ULL << 14);
 				if (++dtail == dd->ipath_sdma_descq_cnt)
 					dtail = 0;
 			}
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index cdf0e6abd34d..9289ab4b0ae8 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -1585,7 +1585,7 @@ static int ipath_query_port(struct ib_device *ibdev,
 	u64 ibcstat;
 
 	memset(props, 0, sizeof(*props));
-	props->lid = lid ? lid : __constant_be16_to_cpu(IB_LID_PERMISSIVE);
+	props->lid = lid ? lid : be16_to_cpu(IB_LID_PERMISSIVE);
 	props->lmc = dd->ipath_lmc;
 	props->sm_lid = dev->sm_lid;
 	props->sm_sl = dev->sm_sl;
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h
index 11e3f613df93..ae6cff4abffc 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.h
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.h
@@ -86,11 +86,11 @@
 #define IB_PMA_SAMPLE_STATUS_RUNNING	0x02
 
 /* Mandatory IB performance counter select values. */
-#define IB_PMA_PORT_XMIT_DATA	__constant_htons(0x0001)
-#define IB_PMA_PORT_RCV_DATA	__constant_htons(0x0002)
-#define IB_PMA_PORT_XMIT_PKTS	__constant_htons(0x0003)
-#define IB_PMA_PORT_RCV_PKTS	__constant_htons(0x0004)
-#define IB_PMA_PORT_XMIT_WAIT	__constant_htons(0x0005)
+#define IB_PMA_PORT_XMIT_DATA	cpu_to_be16(0x0001)
+#define IB_PMA_PORT_RCV_DATA	cpu_to_be16(0x0002)
+#define IB_PMA_PORT_XMIT_PKTS	cpu_to_be16(0x0003)
+#define IB_PMA_PORT_RCV_PKTS	cpu_to_be16(0x0004)
+#define IB_PMA_PORT_XMIT_WAIT	cpu_to_be16(0x0005)
 
 struct ib_reth {
 	__be64 vaddr;
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index a91cb4c3fa5c..f385a24d31d2 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -71,17 +71,17 @@ enum {
 };
 
 static const __be32 mlx4_ib_opcode[] = {
-	[IB_WR_SEND]			= __constant_cpu_to_be32(MLX4_OPCODE_SEND),
-	[IB_WR_LSO]			= __constant_cpu_to_be32(MLX4_OPCODE_LSO),
-	[IB_WR_SEND_WITH_IMM]		= __constant_cpu_to_be32(MLX4_OPCODE_SEND_IMM),
-	[IB_WR_RDMA_WRITE]		= __constant_cpu_to_be32(MLX4_OPCODE_RDMA_WRITE),
-	[IB_WR_RDMA_WRITE_WITH_IMM]	= __constant_cpu_to_be32(MLX4_OPCODE_RDMA_WRITE_IMM),
-	[IB_WR_RDMA_READ]		= __constant_cpu_to_be32(MLX4_OPCODE_RDMA_READ),
-	[IB_WR_ATOMIC_CMP_AND_SWP]	= __constant_cpu_to_be32(MLX4_OPCODE_ATOMIC_CS),
-	[IB_WR_ATOMIC_FETCH_AND_ADD]	= __constant_cpu_to_be32(MLX4_OPCODE_ATOMIC_FA),
-	[IB_WR_SEND_WITH_INV]		= __constant_cpu_to_be32(MLX4_OPCODE_SEND_INVAL),
-	[IB_WR_LOCAL_INV]		= __constant_cpu_to_be32(MLX4_OPCODE_LOCAL_INVAL),
-	[IB_WR_FAST_REG_MR]		= __constant_cpu_to_be32(MLX4_OPCODE_FMR),
+	[IB_WR_SEND]			= cpu_to_be32(MLX4_OPCODE_SEND),
+	[IB_WR_LSO]			= cpu_to_be32(MLX4_OPCODE_LSO),
+	[IB_WR_SEND_WITH_IMM]		= cpu_to_be32(MLX4_OPCODE_SEND_IMM),
+	[IB_WR_RDMA_WRITE]		= cpu_to_be32(MLX4_OPCODE_RDMA_WRITE),
+	[IB_WR_RDMA_WRITE_WITH_IMM]	= cpu_to_be32(MLX4_OPCODE_RDMA_WRITE_IMM),
+	[IB_WR_RDMA_READ]		= cpu_to_be32(MLX4_OPCODE_RDMA_READ),
+	[IB_WR_ATOMIC_CMP_AND_SWP]	= cpu_to_be32(MLX4_OPCODE_ATOMIC_CS),
+	[IB_WR_ATOMIC_FETCH_AND_ADD]	= cpu_to_be32(MLX4_OPCODE_ATOMIC_FA),
+	[IB_WR_SEND_WITH_INV]		= cpu_to_be32(MLX4_OPCODE_SEND_INVAL),
+	[IB_WR_LOCAL_INV]		= cpu_to_be32(MLX4_OPCODE_LOCAL_INVAL),
+	[IB_WR_FAST_REG_MR]		= cpu_to_be32(MLX4_OPCODE_FMR),
 };
 
 static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp)
diff --git a/include/rdma/ib_cm.h b/include/rdma/ib_cm.h
index ec7c6d99ed3f..938858304300 100644
--- a/include/rdma/ib_cm.h
+++ b/include/rdma/ib_cm.h
@@ -314,12 +314,12 @@ struct ib_cm_id *ib_create_cm_id(struct ib_device *device,
  */
 void ib_destroy_cm_id(struct ib_cm_id *cm_id);
 
-#define IB_SERVICE_ID_AGN_MASK	__constant_cpu_to_be64(0xFF00000000000000ULL)
-#define IB_CM_ASSIGN_SERVICE_ID __constant_cpu_to_be64(0x0200000000000000ULL)
-#define IB_CMA_SERVICE_ID	__constant_cpu_to_be64(0x0000000001000000ULL)
-#define IB_CMA_SERVICE_ID_MASK	__constant_cpu_to_be64(0xFFFFFFFFFF000000ULL)
-#define IB_SDP_SERVICE_ID	__constant_cpu_to_be64(0x0000000000010000ULL)
-#define IB_SDP_SERVICE_ID_MASK	__constant_cpu_to_be64(0xFFFFFFFFFFFF0000ULL)
+#define IB_SERVICE_ID_AGN_MASK	cpu_to_be64(0xFF00000000000000ULL)
+#define IB_CM_ASSIGN_SERVICE_ID	cpu_to_be64(0x0200000000000000ULL)
+#define IB_CMA_SERVICE_ID	cpu_to_be64(0x0000000001000000ULL)
+#define IB_CMA_SERVICE_ID_MASK	cpu_to_be64(0xFFFFFFFFFF000000ULL)
+#define IB_SDP_SERVICE_ID	cpu_to_be64(0x0000000000010000ULL)
+#define IB_SDP_SERVICE_ID_MASK	cpu_to_be64(0xFFFFFFFFFFFF0000ULL)
 
 struct ib_cm_compare_data {
 	u8  data[IB_CM_COMPARE_SIZE];
diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index 5f6c40fffcf4..8cc71a130d1b 100644
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -107,7 +107,7 @@
 #define	IB_MGMT_RMPP_STATUS_ABORT_MAX		127
 
 #define IB_QP0		0
-#define IB_QP1		__constant_htonl(1)
+#define IB_QP1		cpu_to_be32(1)
 #define IB_QP1_QKEY	0x80010000
 #define IB_QP_SET_QKEY	0x80000000
 
diff --git a/include/rdma/ib_smi.h b/include/rdma/ib_smi.h
index aaca0878668f..98b9086d769a 100644
--- a/include/rdma/ib_smi.h
+++ b/include/rdma/ib_smi.h
@@ -63,25 +63,25 @@ struct ib_smp {
 	u8	return_path[IB_SMP_MAX_PATH_HOPS];
 } __attribute__ ((packed));
 
-#define IB_SMP_DIRECTION			__constant_htons(0x8000)
+#define IB_SMP_DIRECTION			cpu_to_be16(0x8000)
 
 /* Subnet management attributes */
-#define IB_SMP_ATTR_NOTICE			__constant_htons(0x0002)
-#define IB_SMP_ATTR_NODE_DESC			__constant_htons(0x0010)
-#define IB_SMP_ATTR_NODE_INFO			__constant_htons(0x0011)
-#define IB_SMP_ATTR_SWITCH_INFO			__constant_htons(0x0012)
-#define IB_SMP_ATTR_GUID_INFO			__constant_htons(0x0014)
-#define IB_SMP_ATTR_PORT_INFO			__constant_htons(0x0015)
-#define IB_SMP_ATTR_PKEY_TABLE			__constant_htons(0x0016)
-#define IB_SMP_ATTR_SL_TO_VL_TABLE		__constant_htons(0x0017)
-#define IB_SMP_ATTR_VL_ARB_TABLE		__constant_htons(0x0018)
-#define IB_SMP_ATTR_LINEAR_FORWARD_TABLE	__constant_htons(0x0019)
-#define IB_SMP_ATTR_RANDOM_FORWARD_TABLE	__constant_htons(0x001A)
-#define IB_SMP_ATTR_MCAST_FORWARD_TABLE		__constant_htons(0x001B)
-#define IB_SMP_ATTR_SM_INFO			__constant_htons(0x0020)
-#define IB_SMP_ATTR_VENDOR_DIAG			__constant_htons(0x0030)
-#define IB_SMP_ATTR_LED_INFO			__constant_htons(0x0031)
-#define IB_SMP_ATTR_VENDOR_MASK			__constant_htons(0xFF00)
+#define IB_SMP_ATTR_NOTICE			cpu_to_be16(0x0002)
+#define IB_SMP_ATTR_NODE_DESC			cpu_to_be16(0x0010)
+#define IB_SMP_ATTR_NODE_INFO			cpu_to_be16(0x0011)
+#define IB_SMP_ATTR_SWITCH_INFO			cpu_to_be16(0x0012)
+#define IB_SMP_ATTR_GUID_INFO			cpu_to_be16(0x0014)
+#define IB_SMP_ATTR_PORT_INFO			cpu_to_be16(0x0015)
+#define IB_SMP_ATTR_PKEY_TABLE			cpu_to_be16(0x0016)
+#define IB_SMP_ATTR_SL_TO_VL_TABLE		cpu_to_be16(0x0017)
+#define IB_SMP_ATTR_VL_ARB_TABLE		cpu_to_be16(0x0018)
+#define IB_SMP_ATTR_LINEAR_FORWARD_TABLE	cpu_to_be16(0x0019)
+#define IB_SMP_ATTR_RANDOM_FORWARD_TABLE	cpu_to_be16(0x001A)
+#define IB_SMP_ATTR_MCAST_FORWARD_TABLE		cpu_to_be16(0x001B)
+#define IB_SMP_ATTR_SM_INFO			cpu_to_be16(0x0020)
+#define IB_SMP_ATTR_VENDOR_DIAG			cpu_to_be16(0x0030)
+#define IB_SMP_ATTR_LED_INFO			cpu_to_be16(0x0031)
+#define IB_SMP_ATTR_VENDOR_MASK			cpu_to_be16(0xFF00)
 
 struct ib_port_info {
 	__be64 mkey;
-- 
cgit v1.2.3


From cade9f8a9cf1cd41f6f9e8850c6a0465a21248c3 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Mon, 19 Jan 2009 12:08:58 +0100
Subject: ALSA: Release v1.0.19

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/version.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/sound/version.h b/include/sound/version.h
index 2b48237e23bf..a7e74e23ad2e 100644
--- a/include/sound/version.h
+++ b/include/sound/version.h
@@ -1,3 +1,3 @@
 /* include/version.h */
-#define CONFIG_SND_VERSION "1.0.18a"
+#define CONFIG_SND_VERSION "1.0.19"
 #define CONFIG_SND_DATE ""
-- 
cgit v1.2.3


From a17ac45a5da76f851faf0b6502f66c1205159469 Mon Sep 17 00:00:00 2001
From: Krzysztof Helt <krzysztof.h1@wp.pl>
Date: Wed, 21 Jan 2009 15:14:09 +0100
Subject: ALSA: ad1816a: enable hardware timer

Enable hardware timer with 10 usec resolution.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/ad1816a.h         | 2 ++
 sound/isa/ad1816a/ad1816a.c     | 7 +++++++
 sound/isa/ad1816a/ad1816a_lib.c | 5 -----
 3 files changed, 9 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/sound/ad1816a.h b/include/sound/ad1816a.h
index b3aa62ee3c8d..d010858c33c2 100644
--- a/include/sound/ad1816a.h
+++ b/include/sound/ad1816a.h
@@ -169,5 +169,7 @@ extern int snd_ad1816a_create(struct snd_card *card, unsigned long port,
 
 extern int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm);
 extern int snd_ad1816a_mixer(struct snd_ad1816a *chip);
+extern int snd_ad1816a_timer(struct snd_ad1816a *chip, int device,
+			     struct snd_timer **rtimer);
 
 #endif	/* __SOUND_AD1816A_H */
diff --git a/sound/isa/ad1816a/ad1816a.c b/sound/isa/ad1816a/ad1816a.c
index 3810833d3a87..15f60107a11e 100644
--- a/sound/isa/ad1816a/ad1816a.c
+++ b/sound/isa/ad1816a/ad1816a.c
@@ -156,6 +156,7 @@ static int __devinit snd_card_ad1816a_probe(int dev, struct pnp_card_link *pcard
 	struct snd_card_ad1816a *acard;
 	struct snd_ad1816a *chip;
 	struct snd_opl3 *opl3;
+	struct snd_timer *timer;
 
 	if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
 				 sizeof(struct snd_card_ad1816a))) == NULL)
@@ -194,6 +195,12 @@ static int __devinit snd_card_ad1816a_probe(int dev, struct pnp_card_link *pcard
 		return error;
 	}
 
+	error = snd_ad1816a_timer(chip, 0, &timer);
+	if (error < 0) {
+		snd_card_free(card);
+		return error;
+	}
+
 	if (mpu_port[dev] > 0) {
 		if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
 					mpu_port[dev], 0, mpu_irq[dev], IRQF_DISABLED,
diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
index 3bfca7c59baf..1c9e01ecac0b 100644
--- a/sound/isa/ad1816a/ad1816a_lib.c
+++ b/sound/isa/ad1816a/ad1816a_lib.c
@@ -377,7 +377,6 @@ static struct snd_pcm_hardware snd_ad1816a_capture = {
 	.fifo_size =		0,
 };
 
-#if 0 /* not used now */
 static int snd_ad1816a_timer_close(struct snd_timer *timer)
 {
 	struct snd_ad1816a *chip = snd_timer_chip(timer);
@@ -442,8 +441,6 @@ static struct snd_timer_hardware snd_ad1816a_timer_table = {
 	.start =	snd_ad1816a_timer_start,
 	.stop =		snd_ad1816a_timer_stop,
 };
-#endif /* not used now */
-
 
 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream)
 {
@@ -687,7 +684,6 @@ int __devinit snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_p
 	return 0;
 }
 
-#if 0 /* not used now */
 int __devinit snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd_timer **rtimer)
 {
 	struct snd_timer *timer;
@@ -709,7 +705,6 @@ int __devinit snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd
 		*rtimer = timer;
 	return 0;
 }
-#endif /* not used now */
 
 /*
  *
-- 
cgit v1.2.3


From 1a6afe8a733a3edaa1816c10ec2a7353ae0ff47b Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Fri, 9 Jan 2009 13:01:00 +0000
Subject: clip: convert to internal network_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/atmclip.h |  1 -
 net/atm/clip.c        | 30 ++++++++++++------------------
 2 files changed, 12 insertions(+), 19 deletions(-)

(limited to 'include')

diff --git a/include/net/atmclip.h b/include/net/atmclip.h
index b5a51a7bb364..467c531b8a7e 100644
--- a/include/net/atmclip.h
+++ b/include/net/atmclip.h
@@ -50,7 +50,6 @@ struct atmarp_entry {
 struct clip_priv {
 	int number;			/* for convenience ... */
 	spinlock_t xoff_lock;		/* ensures that pop is atomic (SMP) */
-	struct net_device_stats stats;
 	struct net_device *next;	/* next CLIP interface */
 };
 
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 2d33a83be799..da42fd06b61f 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -214,15 +214,15 @@ static void clip_push(struct atm_vcc *vcc, struct sk_buff *skb)
 		skb->protocol = ((__be16 *) skb->data)[3];
 		skb_pull(skb, RFC1483LLC_LEN);
 		if (skb->protocol == htons(ETH_P_ARP)) {
-			PRIV(skb->dev)->stats.rx_packets++;
-			PRIV(skb->dev)->stats.rx_bytes += skb->len;
+			skb->dev->stats.rx_packets++;
+			skb->dev->stats.rx_bytes += skb->len;
 			clip_arp_rcv(skb);
 			return;
 		}
 	}
 	clip_vcc->last_use = jiffies;
-	PRIV(skb->dev)->stats.rx_packets++;
-	PRIV(skb->dev)->stats.rx_bytes += skb->len;
+	skb->dev->stats.rx_packets++;
+	skb->dev->stats.rx_bytes += skb->len;
 	memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data));
 	netif_rx(skb);
 }
@@ -372,7 +372,7 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (!skb->dst) {
 		printk(KERN_ERR "clip_start_xmit: skb->dst == NULL\n");
 		dev_kfree_skb(skb);
-		clip_priv->stats.tx_dropped++;
+		dev->stats.tx_dropped++;
 		return 0;
 	}
 	if (!skb->dst->neighbour) {
@@ -380,13 +380,13 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		skb->dst->neighbour = clip_find_neighbour(skb->dst, 1);
 		if (!skb->dst->neighbour) {
 			dev_kfree_skb(skb);	/* lost that one */
-			clip_priv->stats.tx_dropped++;
+			dev->stats.tx_dropped++;
 			return 0;
 		}
 #endif
 		printk(KERN_ERR "clip_start_xmit: NO NEIGHBOUR !\n");
 		dev_kfree_skb(skb);
-		clip_priv->stats.tx_dropped++;
+		dev->stats.tx_dropped++;
 		return 0;
 	}
 	entry = NEIGH2ENTRY(skb->dst->neighbour);
@@ -400,7 +400,7 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			skb_queue_tail(&entry->neigh->arp_queue, skb);
 		else {
 			dev_kfree_skb(skb);
-			clip_priv->stats.tx_dropped++;
+			dev->stats.tx_dropped++;
 		}
 		return 0;
 	}
@@ -423,8 +423,8 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		printk(KERN_WARNING "clip_start_xmit: XOFF->XOFF transition\n");
 		return 0;
 	}
-	clip_priv->stats.tx_packets++;
-	clip_priv->stats.tx_bytes += skb->len;
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
 	vcc->send(vcc, skb);
 	if (atm_may_send(vcc, 0)) {
 		entry->vccs->xoff = 0;
@@ -443,11 +443,6 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	return 0;
 }
 
-static struct net_device_stats *clip_get_stats(struct net_device *dev)
-{
-	return &PRIV(dev)->stats;
-}
-
 static int clip_mkip(struct atm_vcc *vcc, int timeout)
 {
 	struct clip_vcc *clip_vcc;
@@ -501,8 +496,8 @@ static int clip_mkip(struct atm_vcc *vcc, int timeout)
 
 			skb_get(skb);
 			clip_push(vcc, skb);
-			PRIV(skb->dev)->stats.rx_packets--;
-			PRIV(skb->dev)->stats.rx_bytes -= len;
+			skb->dev->stats.rx_packets--;
+			skb->dev->stats.rx_bytes -= len;
 			kfree_skb(skb);
 		}
 
@@ -561,7 +556,6 @@ static void clip_setup(struct net_device *dev)
 {
 	dev->hard_start_xmit = clip_start_xmit;
 	/* sg_xmit ... */
-	dev->get_stats = clip_get_stats;
 	dev->type = ARPHRD_ATM;
 	dev->hard_header_len = RFC1483LLC_LEN;
 	dev->mtu = RFC1626_MTU;
-- 
cgit v1.2.3


From b51414b69148433a79af5dc93463a0489492a788 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Fri, 9 Jan 2009 13:01:03 +0000
Subject: netrom: convert to internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netrom.h   |  4 ----
 net/netrom/af_netrom.c |  2 +-
 net/netrom/nr_dev.c    | 14 ++------------
 3 files changed, 3 insertions(+), 17 deletions(-)

(limited to 'include')

diff --git a/include/net/netrom.h b/include/net/netrom.h
index f06852bba62a..15696b1fd30f 100644
--- a/include/net/netrom.h
+++ b/include/net/netrom.h
@@ -59,10 +59,6 @@ enum {
 #define NR_MAX_WINDOW_SIZE		127			/* Maximum Window Allowable - 127 */
 #define	NR_MAX_PACKET_SIZE		236			/* Maximum Packet Length - 236 */
 
-struct nr_private {
-	struct net_device_stats	stats;
-};
-
 struct nr_sock {
 	struct sock		sock;
 	ax25_address		user_addr, source_addr, dest_addr;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index e9c05b8f4f45..cba7849de98e 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1432,7 +1432,7 @@ static int __init nr_proto_init(void)
 		struct net_device *dev;
 
 		sprintf(name, "nr%d", i);
-		dev = alloc_netdev(sizeof(struct nr_private), name, nr_setup);
+		dev = alloc_netdev(0, name, nr_setup);
 		if (!dev) {
 			printk(KERN_ERR "NET/ROM: nr_proto_init - unable to allocate device structure\n");
 			goto fail;
diff --git a/net/netrom/nr_dev.c b/net/netrom/nr_dev.c
index 6caf459665f2..5b9a31a6e685 100644
--- a/net/netrom/nr_dev.c
+++ b/net/netrom/nr_dev.c
@@ -42,7 +42,7 @@
 
 int nr_rx_ip(struct sk_buff *skb, struct net_device *dev)
 {
-	struct net_device_stats *stats = netdev_priv(dev);
+	struct net_device_stats *stats = &dev->stats;
 
 	if (!netif_running(dev)) {
 		stats->rx_dropped++;
@@ -171,8 +171,7 @@ static int nr_close(struct net_device *dev)
 
 static int nr_xmit(struct sk_buff *skb, struct net_device *dev)
 {
-	struct nr_private *nr = netdev_priv(dev);
-	struct net_device_stats *stats = &nr->stats;
+	struct net_device_stats *stats = &dev->stats;
 	unsigned int len = skb->len;
 
 	if (!nr_route_frame(skb, NULL)) {
@@ -187,13 +186,6 @@ static int nr_xmit(struct sk_buff *skb, struct net_device *dev)
 	return 0;
 }
 
-static struct net_device_stats *nr_get_stats(struct net_device *dev)
-{
-	struct nr_private *nr = netdev_priv(dev);
-
-	return &nr->stats;
-}
-
 static const struct header_ops nr_header_ops = {
 	.create	= nr_header,
 	.rebuild= nr_rebuild_header,
@@ -215,6 +207,4 @@ void nr_setup(struct net_device *dev)
 
 	/* New-style flags. */
 	dev->flags		= IFF_NOARP;
-
-	dev->get_stats 		= nr_get_stats;
 }
-- 
cgit v1.2.3


From 5803c5122acb31ebf5f76b1a9925e2c72c4436e1 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Fri, 9 Jan 2009 13:01:08 +0000
Subject: arcnet: convert to internal stats

Use pre-existing network_device_stats inside network_device rather than own
private structure.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/arcnet/arc-rawmode.c |  2 +-
 drivers/net/arcnet/arcnet.c      | 38 ++++++++++----------------------
 drivers/net/arcnet/capmode.c     |  2 +-
 drivers/net/arcnet/rfc1051.c     | 12 +++++-----
 drivers/net/arcnet/rfc1201.c     | 47 ++++++++++++++++++++--------------------
 include/linux/arcdevice.h        |  2 --
 6 files changed, 42 insertions(+), 61 deletions(-)

(limited to 'include')

diff --git a/drivers/net/arcnet/arc-rawmode.c b/drivers/net/arcnet/arc-rawmode.c
index 3ff9affb1a91..da017cbb5f64 100644
--- a/drivers/net/arcnet/arc-rawmode.c
+++ b/drivers/net/arcnet/arc-rawmode.c
@@ -102,7 +102,7 @@ static void rx(struct net_device *dev, int bufnum,
 	skb = alloc_skb(length + ARC_HDR_SIZE, GFP_ATOMIC);
 	if (skb == NULL) {
 		BUGMSG(D_NORMAL, "Memory squeeze, dropping packet.\n");
-		lp->stats.rx_dropped++;
+		dev->stats.rx_dropped++;
 		return;
 	}
 	skb_put(skb, length + ARC_HDR_SIZE);
diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c
index 6b53e5ed125c..34b9a4d0da30 100644
--- a/drivers/net/arcnet/arcnet.c
+++ b/drivers/net/arcnet/arcnet.c
@@ -105,7 +105,6 @@ static int arcnet_header(struct sk_buff *skb, struct net_device *dev,
 			 unsigned short type, const void *daddr,
 			 const void *saddr, unsigned len);
 static int arcnet_rebuild_header(struct sk_buff *skb);
-static struct net_device_stats *arcnet_get_stats(struct net_device *dev);
 static int go_tx(struct net_device *dev);
 
 static int debug = ARCNET_DEBUG;
@@ -347,7 +346,6 @@ static void arcdev_setup(struct net_device *dev)
 	dev->stop = arcnet_close;
 	dev->hard_start_xmit = arcnet_send_packet;
 	dev->tx_timeout = arcnet_timeout;
-	dev->get_stats = arcnet_get_stats;
 }
 
 struct net_device *alloc_arcdev(char *name)
@@ -583,8 +581,8 @@ static int arcnet_rebuild_header(struct sk_buff *skb)
 	} else {
 		BUGMSG(D_NORMAL,
 		       "I don't understand ethernet protocol %Xh addresses!\n", type);
-		lp->stats.tx_errors++;
-		lp->stats.tx_aborted_errors++;
+		dev->stats.tx_errors++;
+		dev->stats.tx_aborted_errors++;
 	}
 
 	/* if we couldn't resolve the address... give up. */
@@ -645,7 +643,7 @@ static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
 		    !proto->ack_tx) {
 			/* done right away and we don't want to acknowledge
 			   the package later - forget about it now */
-			lp->stats.tx_bytes += skb->len;
+			dev->stats.tx_bytes += skb->len;
 			freeskb = 1;
 		} else {
 			/* do it the 'split' way */
@@ -709,7 +707,7 @@ static int go_tx(struct net_device *dev)
 	/* start sending */
 	ACOMMAND(TXcmd | (lp->cur_tx << 3));
 
-	lp->stats.tx_packets++;
+	dev->stats.tx_packets++;
 	lp->lasttrans_dest = lp->lastload_dest;
 	lp->lastload_dest = 0;
 	lp->excnak_pending = 0;
@@ -732,11 +730,11 @@ static void arcnet_timeout(struct net_device *dev)
 		msg = " - missed IRQ?";
 	} else {
 		msg = "";
-		lp->stats.tx_aborted_errors++;
+		dev->stats.tx_aborted_errors++;
 		lp->timed_out = 1;
 		ACOMMAND(NOTXcmd | (lp->cur_tx << 3));
 	}
-	lp->stats.tx_errors++;
+	dev->stats.tx_errors++;
 
 	/* make sure we didn't miss a TX or a EXC NAK IRQ */
 	AINTMASK(0);
@@ -865,8 +863,8 @@ irqreturn_t arcnet_interrupt(int irq, void *dev_id)
 						       "transmit was not acknowledged! "
 						       "(status=%Xh, dest=%02Xh)\n",
 						       status, lp->lasttrans_dest);
-						lp->stats.tx_errors++;
-						lp->stats.tx_carrier_errors++;
+						dev->stats.tx_errors++;
+						dev->stats.tx_carrier_errors++;
 					} else {
 						BUGMSG(D_DURING,
 						       "broadcast was not acknowledged; that's normal "
@@ -905,7 +903,7 @@ irqreturn_t arcnet_interrupt(int irq, void *dev_id)
 				if (txbuf != -1) {
 					if (lp->outgoing.proto->continue_tx(dev, txbuf)) {
 						/* that was the last segment */
-						lp->stats.tx_bytes += lp->outgoing.skb->len;
+						dev->stats.tx_bytes += lp->outgoing.skb->len;
 						if(!lp->outgoing.proto->ack_tx)
 						  {
 						    dev_kfree_skb_irq(lp->outgoing.skb);
@@ -930,7 +928,7 @@ irqreturn_t arcnet_interrupt(int irq, void *dev_id)
 		}
 		if (status & lp->intmask & RECONflag) {
 			ACOMMAND(CFLAGScmd | CONFIGclear);
-			lp->stats.tx_carrier_errors++;
+			dev->stats.tx_carrier_errors++;
 
 			BUGMSG(D_RECON, "Network reconfiguration detected (status=%Xh)\n",
 			       status);
@@ -1038,8 +1036,8 @@ static void arcnet_rx(struct net_device *dev, int bufnum)
 	       "(%d+4 bytes)\n",
 	       bufnum, pkt.hard.source, pkt.hard.dest, length);
 
-	lp->stats.rx_packets++;
-	lp->stats.rx_bytes += length + ARC_HDR_SIZE;
+	dev->stats.rx_packets++;
+	dev->stats.rx_bytes += length + ARC_HDR_SIZE;
 
 	/* call the right receiver for the protocol */
 	if (arc_proto_map[soft->proto]->is_ip) {
@@ -1067,18 +1065,6 @@ static void arcnet_rx(struct net_device *dev, int bufnum)
 }
 
 
-
-/* 
- * Get the current statistics.  This may be called with the card open or
- * closed.
- */
-static struct net_device_stats *arcnet_get_stats(struct net_device *dev)
-{
-	struct arcnet_local *lp = netdev_priv(dev);
-	return &lp->stats;
-}
-
-
 static void null_rx(struct net_device *dev, int bufnum,
 		    struct archdr *pkthdr, int length)
 {
diff --git a/drivers/net/arcnet/capmode.c b/drivers/net/arcnet/capmode.c
index 30580bbe252d..1613929ff301 100644
--- a/drivers/net/arcnet/capmode.c
+++ b/drivers/net/arcnet/capmode.c
@@ -119,7 +119,7 @@ static void rx(struct net_device *dev, int bufnum,
 	skb = alloc_skb(length + ARC_HDR_SIZE + sizeof(int), GFP_ATOMIC);
 	if (skb == NULL) {
 		BUGMSG(D_NORMAL, "Memory squeeze, dropping packet.\n");
-		lp->stats.rx_dropped++;
+		dev->stats.rx_dropped++;
 		return;
 	}
 	skb_put(skb, length + ARC_HDR_SIZE + sizeof(int));
diff --git a/drivers/net/arcnet/rfc1051.c b/drivers/net/arcnet/rfc1051.c
index 49d39a9cb696..06f8fa2f8f2f 100644
--- a/drivers/net/arcnet/rfc1051.c
+++ b/drivers/net/arcnet/rfc1051.c
@@ -88,7 +88,6 @@ MODULE_LICENSE("GPL");
  */
 static __be16 type_trans(struct sk_buff *skb, struct net_device *dev)
 {
-	struct arcnet_local *lp = netdev_priv(dev);
 	struct archdr *pkt = (struct archdr *) skb->data;
 	struct arc_rfc1051 *soft = &pkt->soft.rfc1051;
 	int hdr_size = ARC_HDR_SIZE + RFC1051_HDR_SIZE;
@@ -112,8 +111,8 @@ static __be16 type_trans(struct sk_buff *skb, struct net_device *dev)
 		return htons(ETH_P_ARP);
 
 	default:
-		lp->stats.rx_errors++;
-		lp->stats.rx_crc_errors++;
+		dev->stats.rx_errors++;
+		dev->stats.rx_crc_errors++;
 		return 0;
 	}
 
@@ -140,7 +139,7 @@ static void rx(struct net_device *dev, int bufnum,
 	skb = alloc_skb(length + ARC_HDR_SIZE, GFP_ATOMIC);
 	if (skb == NULL) {
 		BUGMSG(D_NORMAL, "Memory squeeze, dropping packet.\n");
-		lp->stats.rx_dropped++;
+		dev->stats.rx_dropped++;
 		return;
 	}
 	skb_put(skb, length + ARC_HDR_SIZE);
@@ -168,7 +167,6 @@ static void rx(struct net_device *dev, int bufnum,
 static int build_header(struct sk_buff *skb, struct net_device *dev,
 			unsigned short type, uint8_t daddr)
 {
-	struct arcnet_local *lp = netdev_priv(dev);
 	int hdr_size = ARC_HDR_SIZE + RFC1051_HDR_SIZE;
 	struct archdr *pkt = (struct archdr *) skb_push(skb, hdr_size);
 	struct arc_rfc1051 *soft = &pkt->soft.rfc1051;
@@ -184,8 +182,8 @@ static int build_header(struct sk_buff *skb, struct net_device *dev,
 	default:
 		BUGMSG(D_NORMAL, "RFC1051: I don't understand protocol %d (%Xh)\n",
 		       type, type);
-		lp->stats.tx_errors++;
-		lp->stats.tx_aborted_errors++;
+		dev->stats.tx_errors++;
+		dev->stats.tx_aborted_errors++;
 		return 0;
 	}
 
diff --git a/drivers/net/arcnet/rfc1201.c b/drivers/net/arcnet/rfc1201.c
index 2303d3a1f4b6..745530651c45 100644
--- a/drivers/net/arcnet/rfc1201.c
+++ b/drivers/net/arcnet/rfc1201.c
@@ -92,7 +92,6 @@ static __be16 type_trans(struct sk_buff *skb, struct net_device *dev)
 {
 	struct archdr *pkt = (struct archdr *) skb->data;
 	struct arc_rfc1201 *soft = &pkt->soft.rfc1201;
-	struct arcnet_local *lp = netdev_priv(dev);
 	int hdr_size = ARC_HDR_SIZE + RFC1201_HDR_SIZE;
 
 	/* Pull off the arcnet header. */
@@ -121,8 +120,8 @@ static __be16 type_trans(struct sk_buff *skb, struct net_device *dev)
 	case ARC_P_NOVELL_EC:
 		return htons(ETH_P_802_3);
 	default:
-		lp->stats.rx_errors++;
-		lp->stats.rx_crc_errors++;
+		dev->stats.rx_errors++;
+		dev->stats.rx_crc_errors++;
 		return 0;
 	}
 
@@ -172,8 +171,8 @@ static void rx(struct net_device *dev, int bufnum,
 			 in->sequence, soft->split_flag, soft->sequence);
 			lp->rfc1201.aborted_seq = soft->sequence;
 			dev_kfree_skb_irq(in->skb);
-			lp->stats.rx_errors++;
-			lp->stats.rx_missed_errors++;
+			dev->stats.rx_errors++;
+			dev->stats.rx_missed_errors++;
 			in->skb = NULL;
 		}
 		in->sequence = soft->sequence;
@@ -181,7 +180,7 @@ static void rx(struct net_device *dev, int bufnum,
 		skb = alloc_skb(length + ARC_HDR_SIZE, GFP_ATOMIC);
 		if (skb == NULL) {
 			BUGMSG(D_NORMAL, "Memory squeeze, dropping packet.\n");
-			lp->stats.rx_dropped++;
+			dev->stats.rx_dropped++;
 			return;
 		}
 		skb_put(skb, length + ARC_HDR_SIZE);
@@ -213,7 +212,7 @@ static void rx(struct net_device *dev, int bufnum,
 					BUGMSG(D_EXTRA,
 					       "ARP source address was 00h, set to %02Xh.\n",
 					       saddr);
-					lp->stats.rx_crc_errors++;
+					dev->stats.rx_crc_errors++;
 					*cptr = saddr;
 				} else {
 					BUGMSG(D_DURING, "ARP source address (%Xh) is fine.\n",
@@ -222,8 +221,8 @@ static void rx(struct net_device *dev, int bufnum,
 			} else {
 				BUGMSG(D_NORMAL, "funny-shaped ARP packet. (%Xh, %Xh)\n",
 				       arp->ar_hln, arp->ar_pln);
-				lp->stats.rx_errors++;
-				lp->stats.rx_crc_errors++;
+				dev->stats.rx_errors++;
+				dev->stats.rx_crc_errors++;
 			}
 		}
 		BUGLVL(D_SKB) arcnet_dump_skb(dev, skb, "rx");
@@ -257,8 +256,8 @@ static void rx(struct net_device *dev, int bufnum,
 			       soft->split_flag);
 			dev_kfree_skb_irq(in->skb);
 			in->skb = NULL;
-			lp->stats.rx_errors++;
-			lp->stats.rx_missed_errors++;
+			dev->stats.rx_errors++;
+			dev->stats.rx_missed_errors++;
 			in->lastpacket = in->numpackets = 0;
 		}
 		if (soft->split_flag & 1) {	/* first packet in split */
@@ -269,8 +268,8 @@ static void rx(struct net_device *dev, int bufnum,
 				       "(splitflag=%d, seq=%d)\n",
 				       in->sequence, soft->split_flag,
 				       soft->sequence);
-				lp->stats.rx_errors++;
-				lp->stats.rx_missed_errors++;
+				dev->stats.rx_errors++;
+				dev->stats.rx_missed_errors++;
 				dev_kfree_skb_irq(in->skb);
 			}
 			in->sequence = soft->sequence;
@@ -281,8 +280,8 @@ static void rx(struct net_device *dev, int bufnum,
 				BUGMSG(D_EXTRA, "incoming packet more than 16 segments; dropping. (splitflag=%d)\n",
 				       soft->split_flag);
 				lp->rfc1201.aborted_seq = soft->sequence;
-				lp->stats.rx_errors++;
-				lp->stats.rx_length_errors++;
+				dev->stats.rx_errors++;
+				dev->stats.rx_length_errors++;
 				return;
 			}
 			in->skb = skb = alloc_skb(508 * in->numpackets + ARC_HDR_SIZE,
@@ -290,7 +289,7 @@ static void rx(struct net_device *dev, int bufnum,
 			if (skb == NULL) {
 				BUGMSG(D_NORMAL, "(split) memory squeeze, dropping packet.\n");
 				lp->rfc1201.aborted_seq = soft->sequence;
-				lp->stats.rx_dropped++;
+				dev->stats.rx_dropped++;
 				return;
 			}
 			skb->dev = dev;
@@ -314,8 +313,8 @@ static void rx(struct net_device *dev, int bufnum,
 					       "first! (splitflag=%d, seq=%d, aborted=%d)\n",
 					soft->split_flag, soft->sequence,
 					       lp->rfc1201.aborted_seq);
-					lp->stats.rx_errors++;
-					lp->stats.rx_missed_errors++;
+					dev->stats.rx_errors++;
+					dev->stats.rx_missed_errors++;
 				}
 				return;
 			}
@@ -325,8 +324,8 @@ static void rx(struct net_device *dev, int bufnum,
 				if (packetnum <= in->lastpacket - 1) {
 					BUGMSG(D_EXTRA, "duplicate splitpacket ignored! (splitflag=%d)\n",
 					       soft->split_flag);
-					lp->stats.rx_errors++;
-					lp->stats.rx_frame_errors++;
+					dev->stats.rx_errors++;
+					dev->stats.rx_frame_errors++;
 					return;
 				}
 				/* "bad" duplicate, kill reassembly */
@@ -336,8 +335,8 @@ static void rx(struct net_device *dev, int bufnum,
 				lp->rfc1201.aborted_seq = soft->sequence;
 				dev_kfree_skb_irq(in->skb);
 				in->skb = NULL;
-				lp->stats.rx_errors++;
-				lp->stats.rx_missed_errors++;
+				dev->stats.rx_errors++;
+				dev->stats.rx_missed_errors++;
 				in->lastpacket = in->numpackets = 0;
 				return;
 			}
@@ -404,8 +403,8 @@ static int build_header(struct sk_buff *skb, struct net_device *dev,
 	default:
 		BUGMSG(D_NORMAL, "RFC1201: I don't understand protocol %d (%Xh)\n",
 		       type, type);
-		lp->stats.tx_errors++;
-		lp->stats.tx_aborted_errors++;
+		dev->stats.tx_errors++;
+		dev->stats.tx_aborted_errors++;
 		return 0;
 	}
 
diff --git a/include/linux/arcdevice.h b/include/linux/arcdevice.h
index a1916078fd08..ef0d6b7df44c 100644
--- a/include/linux/arcdevice.h
+++ b/include/linux/arcdevice.h
@@ -235,8 +235,6 @@ struct Outgoing {
 
 
 struct arcnet_local {
-	struct net_device_stats stats;
-
 	uint8_t config,		/* current value of CONFIG register */
 		timeout,	/* Extended timeout for COM20020 */
 		backplane,	/* Backplane flag for COM20020 */
-- 
cgit v1.2.3


From bca5b8939f107e498b3fdc92b3a2d286a868d347 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Fri, 9 Jan 2009 13:01:09 +0000
Subject: arcnet: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/arcnet/arcnet.c | 33 ++++++++++++++++-----------------
 include/linux/arcdevice.h   |  7 ++++++-
 2 files changed, 22 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c
index 34b9a4d0da30..a80d4a30a464 100644
--- a/drivers/net/arcnet/arcnet.c
+++ b/drivers/net/arcnet/arcnet.c
@@ -95,12 +95,12 @@ EXPORT_SYMBOL(arcnet_unregister_proto);
 EXPORT_SYMBOL(arcnet_debug);
 EXPORT_SYMBOL(alloc_arcdev);
 EXPORT_SYMBOL(arcnet_interrupt);
+EXPORT_SYMBOL(arcnet_open);
+EXPORT_SYMBOL(arcnet_close);
+EXPORT_SYMBOL(arcnet_send_packet);
+EXPORT_SYMBOL(arcnet_timeout);
 
 /* Internal function prototypes */
-static int arcnet_open(struct net_device *dev);
-static int arcnet_close(struct net_device *dev);
-static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev);
-static void arcnet_timeout(struct net_device *dev);
 static int arcnet_header(struct sk_buff *skb, struct net_device *dev,
 			 unsigned short type, const void *daddr,
 			 const void *saddr, unsigned len);
@@ -321,11 +321,18 @@ static const struct header_ops arcnet_header_ops = {
 	.rebuild = arcnet_rebuild_header,
 };
 
+static const struct net_device_ops arcnet_netdev_ops = {
+	.ndo_open	= arcnet_open,
+	.ndo_stop	= arcnet_close,
+	.ndo_start_xmit = arcnet_send_packet,
+	.ndo_tx_timeout = arcnet_timeout,
+};
 
 /* Setup a struct device for ARCnet. */
 static void arcdev_setup(struct net_device *dev)
 {
 	dev->type = ARPHRD_ARCNET;
+	dev->netdev_ops = &arcnet_netdev_ops;
 	dev->header_ops = &arcnet_header_ops;
 	dev->hard_header_len = sizeof(struct archdr);
 	dev->mtu = choose_mtu();
@@ -338,17 +345,9 @@ static void arcdev_setup(struct net_device *dev)
 	/* New-style flags. */
 	dev->flags = IFF_BROADCAST;
 
-	/*
-	 * Put in this stuff here, so we don't have to export the symbols to
-	 * the chipset drivers.
-	 */
-	dev->open = arcnet_open;
-	dev->stop = arcnet_close;
-	dev->hard_start_xmit = arcnet_send_packet;
-	dev->tx_timeout = arcnet_timeout;
 }
 
-struct net_device *alloc_arcdev(char *name)
+struct net_device *alloc_arcdev(const char *name)
 {
 	struct net_device *dev;
 
@@ -370,7 +369,7 @@ struct net_device *alloc_arcdev(char *name)
  * that "should" only need to be set once at boot, so that there is
  * non-reboot way to recover if something goes wrong.
  */
-static int arcnet_open(struct net_device *dev)
+int arcnet_open(struct net_device *dev)
 {
 	struct arcnet_local *lp = netdev_priv(dev);
 	int count, newmtu, error;
@@ -470,7 +469,7 @@ static int arcnet_open(struct net_device *dev)
 
 
 /* The inverse routine to arcnet_open - shuts down the card. */
-static int arcnet_close(struct net_device *dev)
+int arcnet_close(struct net_device *dev)
 {
 	struct arcnet_local *lp = netdev_priv(dev);
 
@@ -599,7 +598,7 @@ static int arcnet_rebuild_header(struct sk_buff *skb)
 
 
 /* Called by the kernel in order to transmit a packet. */
-static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
+int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev)
 {
 	struct arcnet_local *lp = netdev_priv(dev);
 	struct archdr *pkt;
@@ -718,7 +717,7 @@ static int go_tx(struct net_device *dev)
 
 
 /* Called by the kernel when transmit times out */
-static void arcnet_timeout(struct net_device *dev)
+void arcnet_timeout(struct net_device *dev)
 {
 	unsigned long flags;
 	struct arcnet_local *lp = netdev_priv(dev);
diff --git a/include/linux/arcdevice.h b/include/linux/arcdevice.h
index ef0d6b7df44c..cd4bcb6989ce 100644
--- a/include/linux/arcdevice.h
+++ b/include/linux/arcdevice.h
@@ -333,7 +333,12 @@ void arcnet_dump_skb(struct net_device *dev, struct sk_buff *skb, char *desc);
 
 void arcnet_unregister_proto(struct ArcProto *proto);
 irqreturn_t arcnet_interrupt(int irq, void *dev_id);
-struct net_device *alloc_arcdev(char *name);
+struct net_device *alloc_arcdev(const char *name);
+
+int arcnet_open(struct net_device *dev);
+int arcnet_close(struct net_device *dev);
+int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev);
+void arcnet_timeout(struct net_device *dev);
 
 #endif				/* __KERNEL__ */
 #endif				/* _LINUX_ARCDEVICE_H */
-- 
cgit v1.2.3


From a1799af4d7deefccdaa9d222a886fa1373dbb49a Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Fri, 9 Jan 2009 13:01:10 +0000
Subject: com20020: convert to net_devic_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/arcnet/com20020-isa.c |  2 ++
 drivers/net/arcnet/com20020-pci.c |  3 +++
 drivers/net/arcnet/com20020.c     | 10 ++++++++--
 include/linux/com20020.h          |  1 +
 4 files changed, 14 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/net/arcnet/com20020-isa.c b/drivers/net/arcnet/com20020-isa.c
index ea53a940272f..db08fc24047a 100644
--- a/drivers/net/arcnet/com20020-isa.c
+++ b/drivers/net/arcnet/com20020-isa.c
@@ -151,6 +151,8 @@ static int __init com20020_init(void)
 	if (node && node != 0xff)
 		dev->dev_addr[0] = node;
 
+	dev->netdev_ops = &com20020_netdev_ops;
+
 	lp = netdev_priv(dev);
 	lp->backplane = backplane;
 	lp->clockp = clockp & 7;
diff --git a/drivers/net/arcnet/com20020-pci.c b/drivers/net/arcnet/com20020-pci.c
index 8b51f632581d..dbf4de39754d 100644
--- a/drivers/net/arcnet/com20020-pci.c
+++ b/drivers/net/arcnet/com20020-pci.c
@@ -72,6 +72,9 @@ static int __devinit com20020pci_probe(struct pci_dev *pdev, const struct pci_de
 	dev = alloc_arcdev(device);
 	if (!dev)
 		return -ENOMEM;
+
+	dev->netdev_ops = &com20020_netdev_ops;
+
 	lp = netdev_priv(dev);
 
 	pci_set_drvdata(pdev, dev);
diff --git a/drivers/net/arcnet/com20020.c b/drivers/net/arcnet/com20020.c
index 103688358fb8..bbe8f2ccdadb 100644
--- a/drivers/net/arcnet/com20020.c
+++ b/drivers/net/arcnet/com20020.c
@@ -149,6 +149,14 @@ int com20020_check(struct net_device *dev)
 	return 0;
 }
 
+const struct net_device_ops com20020_netdev_ops = {
+	.ndo_open	= arcnet_open,
+	.ndo_stop	= arcnet_close,
+	.ndo_start_xmit = arcnet_send_packet,
+	.ndo_tx_timeout = arcnet_timeout,
+	.ndo_set_multicast_list = com20020_set_mc_list,
+};
+
 /* Set up the struct net_device associated with this card.  Called after
  * probing succeeds.
  */
@@ -170,8 +178,6 @@ int com20020_found(struct net_device *dev, int shared)
 	lp->hw.copy_from_card = com20020_copy_from_card;
 	lp->hw.close = com20020_close;
 
-	dev->set_multicast_list = com20020_set_mc_list;
-
 	if (!dev->dev_addr[0])
 		dev->dev_addr[0] = inb(ioaddr + BUS_ALIGN*8);	/* FIXME: do this some other way! */
 
diff --git a/include/linux/com20020.h b/include/linux/com20020.h
index ac6d9a43e085..350afa773f8f 100644
--- a/include/linux/com20020.h
+++ b/include/linux/com20020.h
@@ -29,6 +29,7 @@
 
 int com20020_check(struct net_device *dev);
 int com20020_found(struct net_device *dev, int shared);
+const struct net_device_ops com20020_netdev_ops;
 
 /* The number of low I/O ports used by the card. */
 #define ARCNET_TOTAL_SIZE 8
-- 
cgit v1.2.3


From 9fd3238e95046b61d518ddacaa767fa09f31b0d0 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Fri, 9 Jan 2009 13:01:19 +0000
Subject: ibmtr: convert to internal network_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/tokenring/ibmtr.c | 29 ++++++-----------------------
 include/linux/ibmtr.h         |  2 +-
 2 files changed, 7 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/drivers/net/tokenring/ibmtr.c b/drivers/net/tokenring/ibmtr.c
index fa7bce6e0c6d..f195d54ae421 100644
--- a/drivers/net/tokenring/ibmtr.c
+++ b/drivers/net/tokenring/ibmtr.c
@@ -200,7 +200,6 @@ static void 	tr_rx(struct net_device *dev);
 static void	ibmtr_reset_timer(struct timer_list*tmr,struct net_device *dev);
 static void	tok_rerun(unsigned long dev_addr);
 static void	ibmtr_readlog(struct net_device *dev);
-static struct 	net_device_stats *tok_get_stats(struct net_device *dev);
 static int	ibmtr_change_mtu(struct net_device *dev, int mtu);
 static void	find_turbo_adapters(int *iolist);
 
@@ -825,7 +824,6 @@ static int __devinit trdev_init(struct net_device *dev)
 	dev->open = tok_open;
 	dev->stop = tok_close;
 	dev->hard_start_xmit = tok_send_packet;
-	dev->get_stats = tok_get_stats;
 	dev->set_multicast_list = tok_set_multicast_list;
 	dev->change_mtu = ibmtr_change_mtu;
 
@@ -1460,7 +1458,7 @@ static irqreturn_t tok_interrupt(int irq, void *dev_id)
 					"%02X\n",
 					(int)retcode, (int)readb(ti->ssb + 6));
 			else
-				ti->tr_stats.tx_packets++;
+				dev->stats.tx_packets++;
 			break;
 		case XMIT_XID_CMD:
 			DPRINTK("xmit xid ret_code: %02X\n",
@@ -1646,7 +1644,7 @@ static void tr_tx(struct net_device *dev)
 		break;
 	}
 	writeb(RESP_IN_ASB, ti->mmio + ACA_OFFSET + ACA_SET + ISRA_ODD);
-	ti->tr_stats.tx_bytes += ti->current_skb->len;
+	dev->stats.tx_bytes += ti->current_skb->len;
 	dev_kfree_skb_irq(ti->current_skb);
 	ti->current_skb = NULL;
 	netif_wake_queue(dev);
@@ -1722,7 +1720,7 @@ static void tr_rx(struct net_device *dev)
 	if (readb(llc + offsetof(struct trllc, llc)) != UI_CMD) {
 		SET_PAGE(ti->asb_page);
 		writeb(DATA_LOST, ti->asb + RETCODE_OFST);
-		ti->tr_stats.rx_dropped++;
+		dev->stats.rx_dropped++;
 		writeb(RESP_IN_ASB, ti->mmio + ACA_OFFSET + ACA_SET + ISRA_ODD);
 		return;
 	}
@@ -1757,7 +1755,7 @@ static void tr_rx(struct net_device *dev)
 
 	if (!(skb = dev_alloc_skb(skb_size))) {
 		DPRINTK("out of memory. frame dropped.\n");
-		ti->tr_stats.rx_dropped++;
+		dev->stats.rx_dropped++;
 		SET_PAGE(ti->asb_page);
 		writeb(DATA_LOST, ti->asb + offsetof(struct asb_rec, ret_code));
 		writeb(RESP_IN_ASB, ti->mmio + ACA_OFFSET + ACA_SET + ISRA_ODD);
@@ -1813,8 +1811,8 @@ static void tr_rx(struct net_device *dev)
 
 	writeb(RESP_IN_ASB, ti->mmio + ACA_OFFSET + ACA_SET + ISRA_ODD);
 
-	ti->tr_stats.rx_bytes += skb->len;
-	ti->tr_stats.rx_packets++;
+	dev->stats.rx_bytes += skb->len;
+	dev->stats.rx_packets++;
 
 	skb->protocol = tr_type_trans(skb, dev);
 	if (IPv4_p) {
@@ -1876,21 +1874,6 @@ static void ibmtr_readlog(struct net_device *dev)
 
 /*****************************************************************************/
 
-/* tok_get_stats():  Basically a scaffold routine which will return
-   the address of the tr_statistics structure associated with
-   this device -- the tr.... structure is an ethnet look-alike
-   so at least for this iteration may suffice.   */
-
-static struct net_device_stats *tok_get_stats(struct net_device *dev)
-{
-
-	struct tok_info *toki;
-	toki = netdev_priv(dev);
-	return (struct net_device_stats *) &toki->tr_stats;
-}
-
-/*****************************************************************************/
-
 static int ibmtr_change_mtu(struct net_device *dev, int mtu)
 {
 	struct tok_info *ti = netdev_priv(dev);
diff --git a/include/linux/ibmtr.h b/include/linux/ibmtr.h
index 1c7a0dd5536a..06695b74d405 100644
--- a/include/linux/ibmtr.h
+++ b/include/linux/ibmtr.h
@@ -207,7 +207,7 @@ struct tok_info {
 	unsigned short exsap_station_id;
 	unsigned short global_int_enable;
 	struct sk_buff *current_skb;
-	struct net_device_stats tr_stats;
+
 	unsigned char auto_speedsave;
 	open_state			open_status, sap_status;
 	enum {MANUAL, AUTOMATIC}	open_mode;
-- 
cgit v1.2.3


From 5a7616af604caf0d436a1ed0d4298bb25cd77d67 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Fri, 9 Jan 2009 13:01:35 +0000
Subject: hdlcdrv: convert to internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/hamradio/hdlcdrv.c | 27 +++++++--------------------
 include/linux/hdlcdrv.h        |  1 -
 2 files changed, 7 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/drivers/net/hamradio/hdlcdrv.c b/drivers/net/hamradio/hdlcdrv.c
index 8eba61a1d4ab..1215a49c38f1 100644
--- a/drivers/net/hamradio/hdlcdrv.c
+++ b/drivers/net/hamradio/hdlcdrv.c
@@ -154,7 +154,7 @@ static void hdlc_rx_flag(struct net_device *dev, struct hdlcdrv_state *s)
 	pkt_len = s->hdlcrx.len - 2 + 1; /* KISS kludge */
 	if (!(skb = dev_alloc_skb(pkt_len))) {
 		printk("%s: memory squeeze, dropping packet\n", dev->name);
-		s->stats.rx_dropped++;
+		dev->stats.rx_dropped++;
 		return;
 	}
 	cp = skb_put(skb, pkt_len);
@@ -162,7 +162,7 @@ static void hdlc_rx_flag(struct net_device *dev, struct hdlcdrv_state *s)
 	memcpy(cp, s->hdlcrx.buffer, pkt_len - 1);
 	skb->protocol = ax25_type_trans(skb, dev);
 	netif_rx(skb);
-	s->stats.rx_packets++;
+	dev->stats.rx_packets++;
 }
 
 void hdlcdrv_receiver(struct net_device *dev, struct hdlcdrv_state *s)
@@ -326,7 +326,7 @@ void hdlcdrv_transmitter(struct net_device *dev, struct hdlcdrv_state *s)
 			s->hdlctx.len = pkt_len+2; /* the appended CRC */
 			s->hdlctx.tx_state = 2;
 			s->hdlctx.bitstream = 0;
-			s->stats.tx_packets++;
+			dev->stats.tx_packets++;
 			break;
 		case 2:
 			if (!s->hdlctx.len) {
@@ -426,19 +426,6 @@ static int hdlcdrv_set_mac_address(struct net_device *dev, void *addr)
 	return 0;                                         
 }
 
-/* --------------------------------------------------------------------- */
-
-static struct net_device_stats *hdlcdrv_get_stats(struct net_device *dev)
-{
-	struct hdlcdrv_state *sm = netdev_priv(dev);
-
-	/* 
-	 * Get the current statistics.  This may be called with the
-	 * card open or closed. 
-	 */
-	return &sm->stats;
-}
-
 /* --------------------------------------------------------------------- */
 /*
  * Open/initialize the board. This is called (in the current kernel)
@@ -568,10 +555,10 @@ static int hdlcdrv_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		bi.data.cs.ptt = hdlcdrv_ptt(s);
 		bi.data.cs.dcd = s->hdlcrx.dcd;
 		bi.data.cs.ptt_keyed = s->ptt_keyed;
-		bi.data.cs.tx_packets = s->stats.tx_packets;
-		bi.data.cs.tx_errors = s->stats.tx_errors;
-		bi.data.cs.rx_packets = s->stats.rx_packets;
-		bi.data.cs.rx_errors = s->stats.rx_errors;
+		bi.data.cs.tx_packets = dev->stats.tx_packets;
+		bi.data.cs.tx_errors = dev->stats.tx_errors;
+		bi.data.cs.rx_packets = dev->stats.rx_packets;
+		bi.data.cs.rx_errors = dev->stats.rx_errors;
 		break;		
 
 	case HDLCDRVCTL_OLDGETSTAT:
diff --git a/include/linux/hdlcdrv.h b/include/linux/hdlcdrv.h
index bf6302f6b5f8..0821bac62b83 100644
--- a/include/linux/hdlcdrv.h
+++ b/include/linux/hdlcdrv.h
@@ -241,7 +241,6 @@ struct hdlcdrv_state {
 	struct hdlcdrv_bitbuffer bitbuf_hdlc;
 #endif /* HDLCDRV_DEBUG */
 
-	struct net_device_stats stats;
 	int ptt_keyed;
 
 	/* queued skb for transmission */
-- 
cgit v1.2.3


From 7cdc15f5f9db71e9c92422918ab9f8df0d31f81f Mon Sep 17 00:00:00 2001
From: Krzysztof Hałasa <khc@pm.waw.pl>
Date: Thu, 8 Jan 2009 19:46:54 +0100
Subject: WAN: Generic HDLC now uses IFF_WAN_HDLC private flag.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wan/hdlc.c | 3 ++-
 include/linux/if.h     | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index 1f2a140c9f7c..d83cd7884e05 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -106,7 +106,7 @@ static int hdlc_device_event(struct notifier_block *this, unsigned long event,
 	if (dev_net(dev) != &init_net)
 		return NOTIFY_DONE;
 
-	if (dev->get_stats != hdlc_get_stats)
+	if (!(dev->priv_flags & IFF_WAN_HDLC))
 		return NOTIFY_DONE; /* not an HDLC device */
 
 	if (event != NETDEV_CHANGE)
@@ -235,6 +235,7 @@ static void hdlc_setup_dev(struct net_device *dev)
 	 */
 	dev->get_stats		 = hdlc_get_stats;
 	dev->flags		 = IFF_POINTOPOINT | IFF_NOARP;
+	dev->priv_flags		 = IFF_WAN_HDLC;
 	dev->mtu		 = HDLC_MAX_MTU;
 	dev->type		 = ARPHRD_RAWHDLC;
 	dev->hard_header_len	 = 16;
diff --git a/include/linux/if.h b/include/linux/if.h
index 2a6e29620a96..1108f3e099e3 100644
--- a/include/linux/if.h
+++ b/include/linux/if.h
@@ -66,6 +66,7 @@
 #define IFF_SLAVE_NEEDARP 0x40		/* need ARPs for validation	*/
 #define IFF_ISATAP	0x80		/* ISATAP interface (RFC4214)	*/
 #define IFF_MASTER_ARPMON 0x100		/* bonding master, ARP mon in use */
+#define IFF_WAN_HDLC	0x200		/* WAN HDLC device		*/
 
 #define IF_GET_IFACE	0x0001		/* for querying only */
 #define IF_GET_PROTO	0x0002
-- 
cgit v1.2.3


From 991990a12de42281f81b4e3a6471586d2d0caf6a Mon Sep 17 00:00:00 2001
From: Krzysztof Hałasa <khc@pm.waw.pl>
Date: Thu, 8 Jan 2009 22:52:11 +0100
Subject: WAN: Convert generic HDLC drivers to netdev_ops.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Also remove unneeded last_rx update from Synclink drivers.
Synclink part mostly by Stephen Hemminger.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/char/pcmcia/synclink_cs.c | 18 +++++++++++-------
 drivers/char/synclink.c           | 18 +++++++++++-------
 drivers/char/synclink_gt.c        | 18 +++++++++++-------
 drivers/char/synclinkmp.c         | 18 +++++++++++-------
 drivers/net/wan/c101.c            | 12 ++++++++----
 drivers/net/wan/cosa.c            | 14 ++++++++++----
 drivers/net/wan/dscc4.c           | 18 +++++++++++-------
 drivers/net/wan/farsync.c         | 18 ++++++++++++------
 drivers/net/wan/hdlc.c            | 14 +++++++++++---
 drivers/net/wan/hdlc_cisco.c      |  1 -
 drivers/net/wan/hdlc_fr.c         | 28 +++++++++-------------------
 drivers/net/wan/hdlc_ppp.c        |  2 --
 drivers/net/wan/hdlc_raw.c        |  3 ---
 drivers/net/wan/hdlc_raw_eth.c    |  8 ++------
 drivers/net/wan/hdlc_x25.c        |  2 +-
 drivers/net/wan/hostess_sv11.c    | 12 +++++++++---
 drivers/net/wan/ixp4xx_hss.c      | 12 +++++++++---
 drivers/net/wan/lmc/lmc_main.c    | 19 +++++++++++--------
 drivers/net/wan/lmc/lmc_proto.c   | 17 +----------------
 drivers/net/wan/n2.c              | 12 ++++++++----
 drivers/net/wan/pc300too.c        | 12 ++++++++----
 drivers/net/wan/pci200syn.c       | 12 ++++++++----
 drivers/net/wan/sealevel.c        | 12 +++++++++---
 drivers/net/wan/wanxl.c           | 14 ++++++++++----
 include/linux/hdlc.h              |  5 +++++
 25 files changed, 186 insertions(+), 133 deletions(-)

(limited to 'include')

diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index dc073e167abc..5608a1e5a3b3 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -4311,10 +4311,17 @@ static void hdlcdev_rx(MGSLPC_INFO *info, char *buf, int size)
 	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
-
-	dev->last_rx = jiffies;
 }
 
+static const struct net_device_ops hdlcdev_ops = {
+	.ndo_open       = hdlcdev_open,
+	.ndo_stop       = hdlcdev_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hdlcdev_ioctl,
+	.ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
 /**
  * called by device driver when adding device instance
  * do generic HDLC initialization
@@ -4341,11 +4348,8 @@ static int hdlcdev_init(MGSLPC_INFO *info)
 	dev->irq       = info->irq_level;
 
 	/* network layer callbacks and settings */
-	dev->do_ioctl       = hdlcdev_ioctl;
-	dev->open           = hdlcdev_open;
-	dev->stop           = hdlcdev_close;
-	dev->tx_timeout     = hdlcdev_tx_timeout;
-	dev->watchdog_timeo = 10*HZ;
+	dev->netdev_ops	    = &hdlcdev_ops;
+	dev->watchdog_timeo = 10 * HZ;
 	dev->tx_queue_len   = 50;
 
 	/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index b8063d4cad32..0057a8f58cb1 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -8007,10 +8007,17 @@ static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size)
 	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
-
-	dev->last_rx = jiffies;
 }
 
+static const struct net_device_ops hdlcdev_ops = {
+	.ndo_open       = hdlcdev_open,
+	.ndo_stop       = hdlcdev_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hdlcdev_ioctl,
+	.ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
 /**
  * called by device driver when adding device instance
  * do generic HDLC initialization
@@ -8038,11 +8045,8 @@ static int hdlcdev_init(struct mgsl_struct *info)
 	dev->dma       = info->dma_level;
 
 	/* network layer callbacks and settings */
-	dev->do_ioctl       = hdlcdev_ioctl;
-	dev->open           = hdlcdev_open;
-	dev->stop           = hdlcdev_close;
-	dev->tx_timeout     = hdlcdev_tx_timeout;
-	dev->watchdog_timeo = 10*HZ;
+	dev->netdev_ops     = &hdlcdev_ops;
+	dev->watchdog_timeo = 10 * HZ;
 	dev->tx_queue_len   = 50;
 
 	/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index f329f459817c..efb3dc928a43 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -1763,10 +1763,17 @@ static void hdlcdev_rx(struct slgt_info *info, char *buf, int size)
 	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
-
-	dev->last_rx = jiffies;
 }
 
+static const struct net_device_ops hdlcdev_ops = {
+	.ndo_open       = hdlcdev_open,
+	.ndo_stop       = hdlcdev_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hdlcdev_ioctl,
+	.ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
 /**
  * called by device driver when adding device instance
  * do generic HDLC initialization
@@ -1794,11 +1801,8 @@ static int hdlcdev_init(struct slgt_info *info)
 	dev->irq       = info->irq_level;
 
 	/* network layer callbacks and settings */
-	dev->do_ioctl       = hdlcdev_ioctl;
-	dev->open           = hdlcdev_open;
-	dev->stop           = hdlcdev_close;
-	dev->tx_timeout     = hdlcdev_tx_timeout;
-	dev->watchdog_timeo = 10*HZ;
+	dev->netdev_ops	    = &hdlcdev_ops;
+	dev->watchdog_timeo = 10 * HZ;
 	dev->tx_queue_len   = 50;
 
 	/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 7b0c5b2dd263..8eb6c89a980e 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -1907,10 +1907,17 @@ static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size)
 	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
-
-	dev->last_rx = jiffies;
 }
 
+static const struct net_device_ops hdlcdev_ops = {
+	.ndo_open       = hdlcdev_open,
+	.ndo_stop       = hdlcdev_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hdlcdev_ioctl,
+	.ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
 /**
  * called by device driver when adding device instance
  * do generic HDLC initialization
@@ -1938,11 +1945,8 @@ static int hdlcdev_init(SLMP_INFO *info)
 	dev->irq       = info->irq_level;
 
 	/* network layer callbacks and settings */
-	dev->do_ioctl       = hdlcdev_ioctl;
-	dev->open           = hdlcdev_open;
-	dev->stop           = hdlcdev_close;
-	dev->tx_timeout     = hdlcdev_tx_timeout;
-	dev->watchdog_timeo = 10*HZ;
+	dev->netdev_ops	    = &hdlcdev_ops;
+	dev->watchdog_timeo = 10 * HZ;
 	dev->tx_queue_len   = 50;
 
 	/* generic HDLC layer callbacks and settings */
diff --git a/drivers/net/wan/c101.c b/drivers/net/wan/c101.c
index b46897996f7e..9693b0fd323d 100644
--- a/drivers/net/wan/c101.c
+++ b/drivers/net/wan/c101.c
@@ -296,7 +296,13 @@ static void c101_destroy_card(card_t *card)
 	kfree(card);
 }
 
-
+static const struct net_device_ops c101_ops = {
+	.ndo_open       = c101_open,
+	.ndo_stop       = c101_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = c101_ioctl,
+};
 
 static int __init c101_run(unsigned long irq, unsigned long winbase)
 {
@@ -367,9 +373,7 @@ static int __init c101_run(unsigned long irq, unsigned long winbase)
 	dev->mem_start = winbase;
 	dev->mem_end = winbase + C101_MAPPED_RAM_SIZE - 1;
 	dev->tx_queue_len = 50;
-	dev->do_ioctl = c101_ioctl;
-	dev->open = c101_open;
-	dev->stop = c101_close;
+	dev->netdev_ops = &c101_ops;
 	hdlc->attach = sca_attach;
 	hdlc->xmit = sca_xmit;
 	card->settings.clock_type = CLOCK_EXT;
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index d80b72e22dea..0d7ba117ef60 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -427,6 +427,15 @@ static void __exit cosa_exit(void)
 }
 module_exit(cosa_exit);
 
+static const struct net_device_ops cosa_ops = {
+	.ndo_open       = cosa_net_open,
+	.ndo_stop       = cosa_net_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = cosa_net_ioctl,
+	.ndo_tx_timeout = cosa_net_timeout,
+};
+
 static int cosa_probe(int base, int irq, int dma)
 {
 	struct cosa_data *cosa = cosa_cards+nr_cards;
@@ -575,10 +584,7 @@ static int cosa_probe(int base, int irq, int dma)
 		}
 		dev_to_hdlc(chan->netdev)->attach = cosa_net_attach;
 		dev_to_hdlc(chan->netdev)->xmit = cosa_net_tx;
-		chan->netdev->open = cosa_net_open;
-		chan->netdev->stop = cosa_net_close;
-		chan->netdev->do_ioctl = cosa_net_ioctl;
-		chan->netdev->tx_timeout = cosa_net_timeout;
+		chan->netdev->netdev_ops = &cosa_ops;
 		chan->netdev->watchdog_timeo = TX_TIMEOUT;
 		chan->netdev->base_addr = chan->cosa->datareg;
 		chan->netdev->irq = chan->cosa->irq;
diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c
index 888025db2f02..8face5db8f32 100644
--- a/drivers/net/wan/dscc4.c
+++ b/drivers/net/wan/dscc4.c
@@ -883,6 +883,15 @@ static inline int dscc4_set_quartz(struct dscc4_dev_priv *dpriv, int hz)
 	return ret;
 }
 
+static const struct net_device_ops dscc4_ops = {
+	.ndo_open       = dscc4_open,
+	.ndo_stop       = dscc4_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = dscc4_ioctl,
+	.ndo_tx_timeout = dscc4_tx_timeout,
+};
+
 static int dscc4_found1(struct pci_dev *pdev, void __iomem *ioaddr)
 {
 	struct dscc4_pci_priv *ppriv;
@@ -916,13 +925,8 @@ static int dscc4_found1(struct pci_dev *pdev, void __iomem *ioaddr)
 		hdlc_device *hdlc = dev_to_hdlc(d);
 
 	        d->base_addr = (unsigned long)ioaddr;
-		d->init = NULL;
 	        d->irq = pdev->irq;
-	        d->open = dscc4_open;
-	        d->stop = dscc4_close;
-		d->set_multicast_list = NULL;
-	        d->do_ioctl = dscc4_ioctl;
-		d->tx_timeout = dscc4_tx_timeout;
+		d->netdev_ops = &dscc4_ops;
 		d->watchdog_timeo = TX_TIMEOUT;
 		SET_NETDEV_DEV(d, &pdev->dev);
 
@@ -1048,7 +1052,7 @@ static int dscc4_open(struct net_device *dev)
 	struct dscc4_pci_priv *ppriv;
 	int ret = -EAGAIN;
 
-	if ((dscc4_loopback_check(dpriv) < 0) || !dev->hard_start_xmit)
+	if ((dscc4_loopback_check(dpriv) < 0))
 		goto err;
 
 	if ((ret = hdlc_open(dev)))
diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c
index 48a2c9d28950..00945f7c1e9b 100644
--- a/drivers/net/wan/farsync.c
+++ b/drivers/net/wan/farsync.c
@@ -2424,6 +2424,15 @@ fst_init_card(struct fst_card_info *card)
 	       type_strings[card->type], card->irq, card->nports);
 }
 
+static const struct net_device_ops fst_ops = {
+	.ndo_open       = fst_open,
+	.ndo_stop       = fst_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = fst_ioctl,
+	.ndo_tx_timeout = fst_tx_timeout,
+};
+
 /*
  *      Initialise card when detected.
  *      Returns 0 to indicate success, or errno otherwise.
@@ -2565,12 +2574,9 @@ fst_add_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 dev->base_addr   = card->pci_conf;
                 dev->irq         = card->irq;
 
-                dev->tx_queue_len          = FST_TX_QUEUE_LEN;
-                dev->open                  = fst_open;
-                dev->stop                  = fst_close;
-                dev->do_ioctl              = fst_ioctl;
-                dev->watchdog_timeo        = FST_TX_TIMEOUT;
-                dev->tx_timeout            = fst_tx_timeout;
+		dev->netdev_ops = &fst_ops;
+		dev->tx_queue_len = FST_TX_QUEUE_LEN;
+		dev->watchdog_timeo = FST_TX_TIMEOUT;
                 hdlc->attach = fst_attach;
                 hdlc->xmit   = fst_start_xmit;
 	}
diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index dbc179887f8b..43da8bd72973 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -44,7 +44,7 @@ static const char* version = "HDLC support module revision 1.22";
 
 static struct hdlc_proto *first_proto;
 
-static int hdlc_change_mtu(struct net_device *dev, int new_mtu)
+int hdlc_change_mtu(struct net_device *dev, int new_mtu)
 {
 	if ((new_mtu < 68) || (new_mtu > HDLC_MAX_MTU))
 		return -EINVAL;
@@ -66,7 +66,15 @@ static int hdlc_rcv(struct sk_buff *skb, struct net_device *dev,
 	return hdlc->proto->netif_rx(skb);
 }
 
+int hdlc_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	hdlc_device *hdlc = dev_to_hdlc(dev);
 
+	if (hdlc->proto->xmit)
+		return hdlc->proto->xmit(skb, dev);
+
+	return hdlc->xmit(skb, dev); /* call hardware driver directly */
+}
 
 static inline void hdlc_proto_start(struct net_device *dev)
 {
@@ -231,8 +239,6 @@ static void hdlc_setup_dev(struct net_device *dev)
 	dev->hard_header_len	 = 16;
 	dev->addr_len		 = 0;
 	dev->header_ops		 = &hdlc_null_ops;
-
-	dev->change_mtu		 = hdlc_change_mtu;
 }
 
 static void hdlc_setup(struct net_device *dev)
@@ -330,6 +336,8 @@ MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
 MODULE_DESCRIPTION("HDLC support module");
 MODULE_LICENSE("GPL v2");
 
+EXPORT_SYMBOL(hdlc_change_mtu);
+EXPORT_SYMBOL(hdlc_start_xmit);
 EXPORT_SYMBOL(hdlc_open);
 EXPORT_SYMBOL(hdlc_close);
 EXPORT_SYMBOL(hdlc_ioctl);
diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c
index 44e64b15dbd1..af3fd4fead8a 100644
--- a/drivers/net/wan/hdlc_cisco.c
+++ b/drivers/net/wan/hdlc_cisco.c
@@ -382,7 +382,6 @@ static int cisco_ioctl(struct net_device *dev, struct ifreq *ifr)
 
 		memcpy(&state(hdlc)->settings, &new_settings, size);
 		spin_lock_init(&state(hdlc)->lock);
-		dev->hard_start_xmit = hdlc->xmit;
 		dev->header_ops = &cisco_header_ops;
 		dev->type = ARPHRD_CISCO;
 		netif_dormant_on(dev);
diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c
index f1ddd7c3459c..70e57cebc955 100644
--- a/drivers/net/wan/hdlc_fr.c
+++ b/drivers/net/wan/hdlc_fr.c
@@ -444,18 +444,6 @@ static int pvc_xmit(struct sk_buff *skb, struct net_device *dev)
 	return 0;
 }
 
-
-
-static int pvc_change_mtu(struct net_device *dev, int new_mtu)
-{
-	if ((new_mtu < 68) || (new_mtu > HDLC_MAX_MTU))
-		return -EINVAL;
-	dev->mtu = new_mtu;
-	return 0;
-}
-
-
-
 static inline void fr_log_dlci_active(pvc_device *pvc)
 {
 	printk(KERN_INFO "%s: DLCI %d [%s%s%s]%s %s\n",
@@ -1068,6 +1056,14 @@ static void pvc_setup(struct net_device *dev)
 	dev->addr_len = 2;
 }
 
+static const struct net_device_ops pvc_ops = {
+	.ndo_open       = pvc_open,
+	.ndo_stop       = pvc_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = pvc_xmit,
+	.ndo_do_ioctl   = pvc_ioctl,
+};
+
 static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type)
 {
 	hdlc_device *hdlc = dev_to_hdlc(frad);
@@ -1104,11 +1100,7 @@ static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type)
 		*(__be16*)dev->dev_addr = htons(dlci);
 		dlci_to_q922(dev->broadcast, dlci);
 	}
-	dev->hard_start_xmit = pvc_xmit;
-	dev->open = pvc_open;
-	dev->stop = pvc_close;
-	dev->do_ioctl = pvc_ioctl;
-	dev->change_mtu = pvc_change_mtu;
+	dev->netdev_ops = &pvc_ops;
 	dev->mtu = HDLC_MAX_MTU;
 	dev->tx_queue_len = 0;
 	dev->ml_priv = pvc;
@@ -1260,8 +1252,6 @@ static int fr_ioctl(struct net_device *dev, struct ifreq *ifr)
 			state(hdlc)->dce_pvc_count = 0;
 		}
 		memcpy(&state(hdlc)->settings, &new_settings, size);
-
-		dev->hard_start_xmit = hdlc->xmit;
 		dev->type = ARPHRD_FRAD;
 		return 0;
 
diff --git a/drivers/net/wan/hdlc_ppp.c b/drivers/net/wan/hdlc_ppp.c
index 57fe714c1c7f..7b8a5eae201d 100644
--- a/drivers/net/wan/hdlc_ppp.c
+++ b/drivers/net/wan/hdlc_ppp.c
@@ -558,7 +558,6 @@ out:
 	return NET_RX_DROP;
 }
 
-
 static void ppp_timer(unsigned long arg)
 {
 	struct proto *proto = (struct proto *)arg;
@@ -679,7 +678,6 @@ static int ppp_ioctl(struct net_device *dev, struct ifreq *ifr)
 		ppp->keepalive_interval = 10;
 		ppp->keepalive_timeout = 60;
 
-		dev->hard_start_xmit = hdlc->xmit;
 		dev->hard_header_len = sizeof(struct hdlc_header);
 		dev->header_ops = &ppp_header_ops;
 		dev->type = ARPHRD_PPP;
diff --git a/drivers/net/wan/hdlc_raw.c b/drivers/net/wan/hdlc_raw.c
index 8612311748f4..6e92c64ebd0f 100644
--- a/drivers/net/wan/hdlc_raw.c
+++ b/drivers/net/wan/hdlc_raw.c
@@ -30,8 +30,6 @@ static __be16 raw_type_trans(struct sk_buff *skb, struct net_device *dev)
 	return __constant_htons(ETH_P_IP);
 }
 
-
-
 static struct hdlc_proto proto = {
 	.type_trans	= raw_type_trans,
 	.ioctl		= raw_ioctl,
@@ -86,7 +84,6 @@ static int raw_ioctl(struct net_device *dev, struct ifreq *ifr)
 		if (result)
 			return result;
 		memcpy(hdlc->state, &new_settings, size);
-		dev->hard_start_xmit = hdlc->xmit;
 		dev->type = ARPHRD_RAWHDLC;
 		netif_dormant_off(dev);
 		return 0;
diff --git a/drivers/net/wan/hdlc_raw_eth.c b/drivers/net/wan/hdlc_raw_eth.c
index a13fc3207520..49e68f5ca5f2 100644
--- a/drivers/net/wan/hdlc_raw_eth.c
+++ b/drivers/net/wan/hdlc_raw_eth.c
@@ -45,6 +45,7 @@ static int eth_tx(struct sk_buff *skb, struct net_device *dev)
 
 static struct hdlc_proto proto = {
 	.type_trans	= eth_type_trans,
+	.xmit		= eth_tx,
 	.ioctl		= raw_eth_ioctl,
 	.module		= THIS_MODULE,
 };
@@ -56,9 +57,7 @@ static int raw_eth_ioctl(struct net_device *dev, struct ifreq *ifr)
 	const size_t size = sizeof(raw_hdlc_proto);
 	raw_hdlc_proto new_settings;
 	hdlc_device *hdlc = dev_to_hdlc(dev);
-	int result;
-	int (*old_ch_mtu)(struct net_device *, int);
-	int old_qlen;
+	int result, old_qlen;
 
 	switch (ifr->ifr_settings.type) {
 	case IF_GET_PROTO:
@@ -99,11 +98,8 @@ static int raw_eth_ioctl(struct net_device *dev, struct ifreq *ifr)
 		if (result)
 			return result;
 		memcpy(hdlc->state, &new_settings, size);
-		dev->hard_start_xmit = eth_tx;
-		old_ch_mtu = dev->change_mtu;
 		old_qlen = dev->tx_queue_len;
 		ether_setup(dev);
-		dev->change_mtu = old_ch_mtu;
 		dev->tx_queue_len = old_qlen;
 		random_ether_addr(dev->dev_addr);
 		netif_dormant_off(dev);
diff --git a/drivers/net/wan/hdlc_x25.c b/drivers/net/wan/hdlc_x25.c
index cbcbf6f0414c..b1dc29ed1583 100644
--- a/drivers/net/wan/hdlc_x25.c
+++ b/drivers/net/wan/hdlc_x25.c
@@ -184,6 +184,7 @@ static struct hdlc_proto proto = {
 	.close		= x25_close,
 	.ioctl		= x25_ioctl,
 	.netif_rx	= x25_rx,
+	.xmit		= x25_xmit,
 	.module		= THIS_MODULE,
 };
 
@@ -213,7 +214,6 @@ static int x25_ioctl(struct net_device *dev, struct ifreq *ifr)
 
 		if ((result = attach_hdlc_protocol(dev, &proto, 0)))
 			return result;
-		dev->hard_start_xmit = x25_xmit;
 		dev->type = ARPHRD_X25;
 		netif_dormant_off(dev);
 		return 0;
diff --git a/drivers/net/wan/hostess_sv11.c b/drivers/net/wan/hostess_sv11.c
index af54f0cf1b35..567d4f5062d6 100644
--- a/drivers/net/wan/hostess_sv11.c
+++ b/drivers/net/wan/hostess_sv11.c
@@ -173,6 +173,14 @@ static int hostess_attach(struct net_device *dev, unsigned short encoding,
  *	Description block for a Comtrol Hostess SV11 card
  */
 
+static const struct net_device_ops hostess_ops = {
+	.ndo_open       = hostess_open,
+	.ndo_stop       = hostess_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hostess_ioctl,
+};
+
 static struct z8530_dev *sv11_init(int iobase, int irq)
 {
 	struct z8530_dev *sv;
@@ -267,9 +275,7 @@ static struct z8530_dev *sv11_init(int iobase, int irq)
 
 	dev_to_hdlc(netdev)->attach = hostess_attach;
 	dev_to_hdlc(netdev)->xmit = hostess_queue_xmit;
-	netdev->open = hostess_open;
-	netdev->stop = hostess_close;
-	netdev->do_ioctl = hostess_ioctl;
+	netdev->netdev_ops = &hostess_ops;
 	netdev->base_addr = iobase;
 	netdev->irq = irq;
 
diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c
index 0dbd85b0162d..7e8bbba2cc1b 100644
--- a/drivers/net/wan/ixp4xx_hss.c
+++ b/drivers/net/wan/ixp4xx_hss.c
@@ -1230,6 +1230,14 @@ static int hss_hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
  * initialization
  ****************************************************************************/
 
+static const struct net_device_ops hss_hdlc_ops = {
+	.ndo_open       = hss_hdlc_open,
+	.ndo_stop       = hss_hdlc_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hss_hdlc_ioctl,
+};
+
 static int __devinit hss_init_one(struct platform_device *pdev)
 {
 	struct port *port;
@@ -1254,9 +1262,7 @@ static int __devinit hss_init_one(struct platform_device *pdev)
 	hdlc = dev_to_hdlc(dev);
 	hdlc->attach = hss_hdlc_attach;
 	hdlc->xmit = hss_hdlc_xmit;
-	dev->open = hss_hdlc_open;
-	dev->stop = hss_hdlc_close;
-	dev->do_ioctl = hss_hdlc_ioctl;
+	dev->netdev_ops = &hss_hdlc_ops;
 	dev->tx_queue_len = 100;
 	port->clock_type = CLOCK_EXT;
 	port->clock_rate = 2048000;
diff --git a/drivers/net/wan/lmc/lmc_main.c b/drivers/net/wan/lmc/lmc_main.c
index feac3b99f8fe..45b1822c962d 100644
--- a/drivers/net/wan/lmc/lmc_main.c
+++ b/drivers/net/wan/lmc/lmc_main.c
@@ -806,6 +806,16 @@ static int lmc_attach(struct net_device *dev, unsigned short encoding,
 	return -EINVAL;
 }
 
+static const struct net_device_ops lmc_ops = {
+	.ndo_open       = lmc_open,
+	.ndo_stop       = lmc_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = lmc_ioctl,
+	.ndo_tx_timeout = lmc_driver_timeout,
+	.ndo_get_stats  = lmc_get_stats,
+};
+
 static int __devinit lmc_init_one(struct pci_dev *pdev,
 				  const struct pci_device_id *ent)
 {
@@ -849,11 +859,7 @@ static int __devinit lmc_init_one(struct pci_dev *pdev,
 	dev->type = ARPHRD_HDLC;
 	dev_to_hdlc(dev)->xmit = lmc_start_xmit;
 	dev_to_hdlc(dev)->attach = lmc_attach;
-	dev->open = lmc_open;
-	dev->stop = lmc_close;
-	dev->get_stats = lmc_get_stats;
-	dev->do_ioctl = lmc_ioctl;
-	dev->tx_timeout = lmc_driver_timeout;
+	dev->netdev_ops = &lmc_ops;
 	dev->watchdog_timeo = HZ; /* 1 second */
 	dev->tx_queue_len = 100;
 	sc->lmc_device = dev;
@@ -1059,9 +1065,6 @@ static int lmc_open(struct net_device *dev)
     if ((err = lmc_proto_open(sc)) != 0)
 	    return err;
 
-    dev->do_ioctl = lmc_ioctl;
-
-
     netif_start_queue(dev);
     sc->extra_stats.tx_tbusy0++;
 
diff --git a/drivers/net/wan/lmc/lmc_proto.c b/drivers/net/wan/lmc/lmc_proto.c
index 94b4c208b013..044a48175c42 100644
--- a/drivers/net/wan/lmc/lmc_proto.c
+++ b/drivers/net/wan/lmc/lmc_proto.c
@@ -51,30 +51,15 @@
 void lmc_proto_attach(lmc_softc_t *sc) /*FOLD00*/
 {
     lmc_trace(sc->lmc_device, "lmc_proto_attach in");
-    switch(sc->if_type){
-    case LMC_PPP:
-        {
-            struct net_device *dev = sc->lmc_device;
-            dev->do_ioctl = lmc_ioctl;
-        }
-        break;
-    case LMC_NET:
-        {
+    if (sc->if_type == LMC_NET) {
             struct net_device *dev = sc->lmc_device;
             /*
 	     * They set a few basics because they don't use HDLC
              */
             dev->flags |= IFF_POINTOPOINT;
-
             dev->hard_header_len = 0;
             dev->addr_len = 0;
         }
-    case LMC_RAW: /* Setup the task queue, maybe we should notify someone? */
-        {
-        }
-    default:
-        break;
-    }
     lmc_trace(sc->lmc_device, "lmc_proto_attach out");
 }
 
diff --git a/drivers/net/wan/n2.c b/drivers/net/wan/n2.c
index 697715ae80f4..83da596e2052 100644
--- a/drivers/net/wan/n2.c
+++ b/drivers/net/wan/n2.c
@@ -324,7 +324,13 @@ static void n2_destroy_card(card_t *card)
 	kfree(card);
 }
 
-
+static const struct net_device_ops n2_ops = {
+	.ndo_open       = n2_open,
+	.ndo_stop       = n2_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = n2_ioctl,
+};
 
 static int __init n2_run(unsigned long io, unsigned long irq,
 			 unsigned long winbase, long valid0, long valid1)
@@ -460,9 +466,7 @@ static int __init n2_run(unsigned long io, unsigned long irq,
 		dev->mem_start = winbase;
 		dev->mem_end = winbase + USE_WINDOWSIZE - 1;
 		dev->tx_queue_len = 50;
-		dev->do_ioctl = n2_ioctl;
-		dev->open = n2_open;
-		dev->stop = n2_close;
+		dev->netdev_ops = &n2_ops;
 		hdlc->attach = sca_attach;
 		hdlc->xmit = sca_xmit;
 		port->settings.clock_type = CLOCK_EXT;
diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c
index f247e5d9002a..60ece54bdd94 100644
--- a/drivers/net/wan/pc300too.c
+++ b/drivers/net/wan/pc300too.c
@@ -287,7 +287,13 @@ static void pc300_pci_remove_one(struct pci_dev *pdev)
 	kfree(card);
 }
 
-
+static const struct net_device_ops pc300_ops = {
+	.ndo_open       = pc300_open,
+	.ndo_stop       = pc300_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = pc300_ioctl,
+};
 
 static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
 					const struct pci_device_id *ent)
@@ -448,9 +454,7 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
 		dev->mem_start = ramphys;
 		dev->mem_end = ramphys + ramsize - 1;
 		dev->tx_queue_len = 50;
-		dev->do_ioctl = pc300_ioctl;
-		dev->open = pc300_open;
-		dev->stop = pc300_close;
+		dev->netdev_ops = &pc300_ops;
 		hdlc->attach = sca_attach;
 		hdlc->xmit = sca_xmit;
 		port->settings.clock_type = CLOCK_EXT;
diff --git a/drivers/net/wan/pci200syn.c b/drivers/net/wan/pci200syn.c
index 1104d3a692f7..e035d8c57e11 100644
--- a/drivers/net/wan/pci200syn.c
+++ b/drivers/net/wan/pci200syn.c
@@ -265,7 +265,13 @@ static void pci200_pci_remove_one(struct pci_dev *pdev)
 	kfree(card);
 }
 
-
+static const struct net_device_ops pci200_ops = {
+	.ndo_open       = pci200_open,
+	.ndo_stop       = pci200_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = pci200_ioctl,
+};
 
 static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
 					 const struct pci_device_id *ent)
@@ -395,9 +401,7 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
 		dev->mem_start = ramphys;
 		dev->mem_end = ramphys + ramsize - 1;
 		dev->tx_queue_len = 50;
-		dev->do_ioctl = pci200_ioctl;
-		dev->open = pci200_open;
-		dev->stop = pci200_close;
+		dev->netdev_ops = &pci200_ops;
 		hdlc->attach = sca_attach;
 		hdlc->xmit = sca_xmit;
 		port->settings.clock_type = CLOCK_EXT;
diff --git a/drivers/net/wan/sealevel.c b/drivers/net/wan/sealevel.c
index 0941a26f6e3f..23b269027453 100644
--- a/drivers/net/wan/sealevel.c
+++ b/drivers/net/wan/sealevel.c
@@ -169,6 +169,14 @@ static int sealevel_attach(struct net_device *dev, unsigned short encoding,
 	return -EINVAL;
 }
 
+static const struct net_device_ops sealevel_ops = {
+	.ndo_open       = sealevel_open,
+	.ndo_stop       = sealevel_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = sealevel_ioctl,
+};
+
 static int slvl_setup(struct slvl_device *sv, int iobase, int irq)
 {
 	struct net_device *dev = alloc_hdlcdev(sv);
@@ -177,9 +185,7 @@ static int slvl_setup(struct slvl_device *sv, int iobase, int irq)
 
 	dev_to_hdlc(dev)->attach = sealevel_attach;
 	dev_to_hdlc(dev)->xmit = sealevel_queue_xmit;
-	dev->open = sealevel_open;
-	dev->stop = sealevel_close;
-	dev->do_ioctl = sealevel_ioctl;
+	dev->netdev_ops = &sealevel_ops;
 	dev->base_addr = iobase;
 	dev->irq = irq;
 
diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c
index 4bffb67ebcae..887acb0dc807 100644
--- a/drivers/net/wan/wanxl.c
+++ b/drivers/net/wan/wanxl.c
@@ -547,6 +547,15 @@ static void wanxl_pci_remove_one(struct pci_dev *pdev)
 
 #include "wanxlfw.inc"
 
+static const struct net_device_ops wanxl_ops = {
+	.ndo_open       = wanxl_open,
+	.ndo_stop       = wanxl_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = wanxl_ioctl,
+	.ndo_get_stats  = wanxl_get_stats,
+};
+
 static int __devinit wanxl_pci_init_one(struct pci_dev *pdev,
 					const struct pci_device_id *ent)
 {
@@ -777,12 +786,9 @@ static int __devinit wanxl_pci_init_one(struct pci_dev *pdev,
 		hdlc = dev_to_hdlc(dev);
 		spin_lock_init(&port->lock);
 		dev->tx_queue_len = 50;
-		dev->do_ioctl = wanxl_ioctl;
-		dev->open = wanxl_open;
-		dev->stop = wanxl_close;
+		dev->netdev_ops = &wanxl_ops;
 		hdlc->attach = wanxl_attach;
 		hdlc->xmit = wanxl_xmit;
-		dev->get_stats = wanxl_get_stats;
 		port->card = card;
 		port->node = i;
 		get_status(port)->clocking = CLOCK_EXT;
diff --git a/include/linux/hdlc.h b/include/linux/hdlc.h
index fd47a151665e..6a6e701f1631 100644
--- a/include/linux/hdlc.h
+++ b/include/linux/hdlc.h
@@ -38,6 +38,7 @@ struct hdlc_proto {
 	int (*ioctl)(struct net_device *dev, struct ifreq *ifr);
 	__be16 (*type_trans)(struct sk_buff *skb, struct net_device *dev);
 	int (*netif_rx)(struct sk_buff *skb);
+	int (*xmit)(struct sk_buff *skb, struct net_device *dev);
 	struct module *module;
 	struct hdlc_proto *next; /* next protocol in the list */
 };
@@ -102,6 +103,10 @@ static __inline__ void debug_frame(const struct sk_buff *skb)
 int hdlc_open(struct net_device *dev);
 /* Must be called by hardware driver when HDLC device is being closed */
 void hdlc_close(struct net_device *dev);
+/* May be used by hardware driver */
+int hdlc_change_mtu(struct net_device *dev, int new_mtu);
+/* Must be pointed to by hw driver's dev->netdev_ops->ndo_start_xmit */
+int hdlc_start_xmit(struct sk_buff *skb, struct net_device *dev);
 
 int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto,
 			 size_t size);
-- 
cgit v1.2.3


From 5ec99fdf8e1a6ee90fce22c2fce94871ab44e8ba Mon Sep 17 00:00:00 2001
From: Cesar Eduardo Barros <cesarb@cesarb.net>
Date: Wed, 14 Jan 2009 20:34:04 -0800
Subject: sc92031: use device id directly instead of made-up name

Instead of making up a name for the device ids, put them directly in the
device id table. Also move the vendor id to pci_ids.h.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/sc92031.c   | 8 ++------
 include/linux/pci_ids.h | 2 ++
 2 files changed, 4 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/drivers/net/sc92031.c b/drivers/net/sc92031.c
index d24acdcdb157..00dfddbf2f9b 100644
--- a/drivers/net/sc92031.c
+++ b/drivers/net/sc92031.c
@@ -31,10 +31,6 @@
 
 #include <asm/irq.h>
 
-#define PCI_VENDOR_ID_SILAN		0x1904
-#define PCI_DEVICE_ID_SILAN_SC92031	0x2031
-#define PCI_DEVICE_ID_SILAN_8139D	0x8139
-
 #define SC92031_NAME "sc92031"
 
 /* BAR 0 is MMIO, BAR 1 is PIO */
@@ -1592,8 +1588,8 @@ out:
 }
 
 static struct pci_device_id sc92031_pci_device_id_table[] __devinitdata = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_SILAN, PCI_DEVICE_ID_SILAN_SC92031) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_SILAN, PCI_DEVICE_ID_SILAN_8139D) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x2031) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x8139) },
 	{ 0, }
 };
 MODULE_DEVICE_TABLE(pci, sc92031_pci_device_id_table);
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index d56ad9c21c09..302423afa136 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2209,6 +2209,8 @@
 
 #define PCI_VENDOR_ID_TOPSPIN		0x1867
 
+#define PCI_VENDOR_ID_SILAN		0x1904
+
 #define PCI_VENDOR_ID_TDI               0x192E
 #define PCI_DEVICE_ID_TDI_EHCI          0x0101
 
-- 
cgit v1.2.3


From 288379f050284087578b77e04f040b57db3db3f8 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 19 Jan 2009 16:43:59 -0800
Subject: net: Remove redundant NAPI functions

Following the removal of the unused struct net_device * parameter from
the NAPI functions named *netif_rx_* in commit 908a7a1, they are
exactly equivalent to the corresponding *napi_* functions and are
therefore redundant.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/infiniband/hw/nes/nes_hw.c      |  2 +-
 drivers/infiniband/hw/nes/nes_nic.c     |  2 +-
 drivers/infiniband/ulp/ipoib/ipoib_ib.c |  6 ++--
 drivers/net/8139cp.c                    |  6 ++--
 drivers/net/8139too.c                   |  6 ++--
 drivers/net/amd8111e.c                  |  6 ++--
 drivers/net/arm/ep93xx_eth.c            |  8 +++---
 drivers/net/arm/ixp4xx_eth.c            | 12 ++++----
 drivers/net/atl1e/atl1e_main.c          |  6 ++--
 drivers/net/b44.c                       |  6 ++--
 drivers/net/bnx2.c                      | 12 ++++----
 drivers/net/bnx2x_main.c                |  6 ++--
 drivers/net/cassini.c                   |  8 +++---
 drivers/net/chelsio/sge.c               |  4 +--
 drivers/net/cpmac.c                     | 10 +++----
 drivers/net/e100.c                      |  6 ++--
 drivers/net/e1000/e1000_main.c          | 10 +++----
 drivers/net/e1000e/netdev.c             | 14 ++++-----
 drivers/net/ehea/ehea_main.c            |  8 +++---
 drivers/net/enic/enic_main.c            | 12 ++++----
 drivers/net/epic100.c                   |  6 ++--
 drivers/net/forcedeth.c                 | 10 +++----
 drivers/net/fs_enet/fs_enet-main.c      |  4 +--
 drivers/net/gianfar.c                   |  6 ++--
 drivers/net/ibmveth.c                   |  8 +++---
 drivers/net/igb/igb_main.c              | 12 ++++----
 drivers/net/ixgb/ixgb_main.c            |  6 ++--
 drivers/net/ixgbe/ixgbe_main.c          | 12 ++++----
 drivers/net/ixp2000/ixpdev.c            |  4 +--
 drivers/net/jme.h                       |  6 ++--
 drivers/net/korina.c                    |  4 +--
 drivers/net/macb.c                      | 10 +++----
 drivers/net/mlx4/en_rx.c                |  4 +--
 drivers/net/myri10ge/myri10ge.c         |  6 ++--
 drivers/net/natsemi.c                   |  6 ++--
 drivers/net/netxen/netxen_nic_main.c    |  2 +-
 drivers/net/niu.c                       |  6 ++--
 drivers/net/pasemi_mac.c                |  6 ++--
 drivers/net/pcnet32.c                   |  6 ++--
 drivers/net/qla3xxx.c                   |  6 ++--
 drivers/net/qlge/qlge_main.c            |  6 ++--
 drivers/net/r6040.c                     |  4 +--
 drivers/net/r8169.c                     |  6 ++--
 drivers/net/s2io.c                      |  8 +++---
 drivers/net/sb1250-mac.c                |  6 ++--
 drivers/net/sfc/efx.c                   |  4 +--
 drivers/net/sfc/efx.h                   |  2 +-
 drivers/net/skge.c                      |  6 ++--
 drivers/net/smsc911x.c                  |  8 +++---
 drivers/net/smsc9420.c                  |  4 +--
 drivers/net/spider_net.c                | 12 ++++----
 drivers/net/starfire.c                  |  6 ++--
 drivers/net/sungem.c                    |  6 ++--
 drivers/net/tc35815.c                   |  6 ++--
 drivers/net/tehuti.c                    |  6 ++--
 drivers/net/tg3.c                       | 14 ++++-----
 drivers/net/tsi108_eth.c                |  8 +++---
 drivers/net/tulip/interrupt.c           | 10 +++----
 drivers/net/typhoon.c                   |  6 ++--
 drivers/net/ucc_geth.c                  |  6 ++--
 drivers/net/via-rhine.c                 |  4 +--
 drivers/net/virtio_net.c                | 12 ++++----
 drivers/net/wan/hd64572.c               |  4 +--
 drivers/net/wan/ixp4xx_hss.c            | 12 ++++----
 drivers/net/xen-netfront.c              |  8 +++---
 include/linux/netdevice.h               | 50 ---------------------------------
 66 files changed, 227 insertions(+), 277 deletions(-)

(limited to 'include')

diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 5d139db1b771..53df9de23423 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -2541,7 +2541,7 @@ static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic
 {
 	struct nes_vnic *nesvnic = container_of(cq, struct nes_vnic, nic_cq);
 
-	netif_rx_schedule(&nesvnic->napi);
+	napi_schedule(&nesvnic->napi);
 }
 
 
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 57a47cf7e513..f5484ad1279b 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -111,7 +111,7 @@ static int nes_netdev_poll(struct napi_struct *napi, int budget)
 	nes_nic_ce_handler(nesdev, nescq);
 
 	if (nescq->cqes_pending == 0) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		/* clear out completed cqes and arm */
 		nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
 				nescq->cq_number | (nescq->cqe_allocs_pending << 16));
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index a1925810be3c..da6082739839 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -446,11 +446,11 @@ poll_more:
 		if (dev->features & NETIF_F_LRO)
 			lro_flush_all(&priv->lro.lro_mgr);
 
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (unlikely(ib_req_notify_cq(priv->recv_cq,
 					      IB_CQ_NEXT_COMP |
 					      IB_CQ_REPORT_MISSED_EVENTS)) &&
-		    netif_rx_reschedule(napi))
+		    napi_reschedule(napi))
 			goto poll_more;
 	}
 
@@ -462,7 +462,7 @@ void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr)
 	struct net_device *dev = dev_ptr;
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 
-	netif_rx_schedule(&priv->napi);
+	napi_schedule(&priv->napi);
 }
 
 static void drain_tx_cq(struct net_device *dev)
diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index 4e19ae3ce6be..35517b06ec3f 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -604,7 +604,7 @@ rx_next:
 
 		spin_lock_irqsave(&cp->lock, flags);
 		cpw16_f(IntrMask, cp_intr_mask);
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 		spin_unlock_irqrestore(&cp->lock, flags);
 	}
 
@@ -641,9 +641,9 @@ static irqreturn_t cp_interrupt (int irq, void *dev_instance)
 	}
 
 	if (status & (RxOK | RxErr | RxEmpty | RxFIFOOvr))
-		if (netif_rx_schedule_prep(&cp->napi)) {
+		if (napi_schedule_prep(&cp->napi)) {
 			cpw16_f(IntrMask, cp_norx_intr_mask);
-			__netif_rx_schedule(&cp->napi);
+			__napi_schedule(&cp->napi);
 		}
 
 	if (status & (TxOK | TxErr | TxEmpty | SWInt))
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index a5b24202d564..5341da604e84 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -2128,7 +2128,7 @@ static int rtl8139_poll(struct napi_struct *napi, int budget)
 		 */
 		spin_lock_irqsave(&tp->lock, flags);
 		RTL_W16_F(IntrMask, rtl8139_intr_mask);
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 		spin_unlock_irqrestore(&tp->lock, flags);
 	}
 	spin_unlock(&tp->rx_lock);
@@ -2178,9 +2178,9 @@ static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance)
 	/* Receive packets are processed by poll routine.
 	   If not running start it now. */
 	if (status & RxAckBits){
-		if (netif_rx_schedule_prep(&tp->napi)) {
+		if (napi_schedule_prep(&tp->napi)) {
 			RTL_W16_F (IntrMask, rtl8139_norx_intr_mask);
-			__netif_rx_schedule(&tp->napi);
+			__napi_schedule(&tp->napi);
 		}
 	}
 
diff --git a/drivers/net/amd8111e.c b/drivers/net/amd8111e.c
index 7709992bb6bf..cb9c95d3ed0a 100644
--- a/drivers/net/amd8111e.c
+++ b/drivers/net/amd8111e.c
@@ -831,7 +831,7 @@ static int amd8111e_rx_poll(struct napi_struct *napi, int budget)
 	if (rx_pkt_limit > 0) {
 		/* Receive descriptor is empty now */
 		spin_lock_irqsave(&lp->lock, flags);
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 		writel(VAL0|RINTEN0, mmio + INTEN0);
 		writel(VAL2 | RDMD0, mmio + CMD0);
 		spin_unlock_irqrestore(&lp->lock, flags);
@@ -1170,11 +1170,11 @@ static irqreturn_t amd8111e_interrupt(int irq, void *dev_id)
 
 	/* Check if Receive Interrupt has occurred. */
 	if (intr0 & RINT0) {
-		if (netif_rx_schedule_prep(&lp->napi)) {
+		if (napi_schedule_prep(&lp->napi)) {
 			/* Disable receive interupts */
 			writel(RINTEN0, mmio + INTEN0);
 			/* Schedule a polling routine */
-			__netif_rx_schedule(&lp->napi);
+			__napi_schedule(&lp->napi);
 		} else if (intren0 & RINTEN0) {
 			printk("************Driver bug! \
 				interrupt while in poll\n");
diff --git a/drivers/net/arm/ep93xx_eth.c b/drivers/net/arm/ep93xx_eth.c
index 3ec20cc18b0c..cc7708775da0 100644
--- a/drivers/net/arm/ep93xx_eth.c
+++ b/drivers/net/arm/ep93xx_eth.c
@@ -298,7 +298,7 @@ poll_some_more:
 		int more = 0;
 
 		spin_lock_irq(&ep->rx_lock);
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 		wrl(ep, REG_INTEN, REG_INTEN_TX | REG_INTEN_RX);
 		if (ep93xx_have_more_rx(ep)) {
 			wrl(ep, REG_INTEN, REG_INTEN_TX);
@@ -307,7 +307,7 @@ poll_some_more:
 		}
 		spin_unlock_irq(&ep->rx_lock);
 
-		if (more && netif_rx_reschedule(napi))
+		if (more && napi_reschedule(napi))
 			goto poll_some_more;
 	}
 
@@ -415,9 +415,9 @@ static irqreturn_t ep93xx_irq(int irq, void *dev_id)
 
 	if (status & REG_INTSTS_RX) {
 		spin_lock(&ep->rx_lock);
-		if (likely(netif_rx_schedule_prep(&ep->napi))) {
+		if (likely(napi_schedule_prep(&ep->napi))) {
 			wrl(ep, REG_INTEN, REG_INTEN_TX);
-			__netif_rx_schedule(&ep->napi);
+			__napi_schedule(&ep->napi);
 		}
 		spin_unlock(&ep->rx_lock);
 	}
diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
index 5fce1d5c1a1a..5fe17d5eaa54 100644
--- a/drivers/net/arm/ixp4xx_eth.c
+++ b/drivers/net/arm/ixp4xx_eth.c
@@ -473,7 +473,7 @@ static void eth_rx_irq(void *pdev)
 	printk(KERN_DEBUG "%s: eth_rx_irq\n", dev->name);
 #endif
 	qmgr_disable_irq(port->plat->rxq);
-	netif_rx_schedule(&port->napi);
+	napi_schedule(&port->napi);
 }
 
 static int eth_poll(struct napi_struct *napi, int budget)
@@ -498,16 +498,16 @@ static int eth_poll(struct napi_struct *napi, int budget)
 
 		if ((n = queue_get_desc(rxq, port, 0)) < 0) {
 #if DEBUG_RX
-			printk(KERN_DEBUG "%s: eth_poll netif_rx_complete\n",
+			printk(KERN_DEBUG "%s: eth_poll napi_complete\n",
 			       dev->name);
 #endif
-			netif_rx_complete(napi);
+			napi_complete(napi);
 			qmgr_enable_irq(rxq);
 			if (!qmgr_stat_empty(rxq) &&
-			    netif_rx_reschedule(napi)) {
+			    napi_reschedule(napi)) {
 #if DEBUG_RX
 				printk(KERN_DEBUG "%s: eth_poll"
-				       " netif_rx_reschedule successed\n",
+				       " napi_reschedule successed\n",
 				       dev->name);
 #endif
 				qmgr_disable_irq(rxq);
@@ -1036,7 +1036,7 @@ static int eth_open(struct net_device *dev)
 	}
 	ports_open++;
 	/* we may already have RX data, enables IRQ */
-	netif_rx_schedule(&port->napi);
+	napi_schedule(&port->napi);
 	return 0;
 }
 
diff --git a/drivers/net/atl1e/atl1e_main.c b/drivers/net/atl1e/atl1e_main.c
index bb9094d4cbc9..c758884728a5 100644
--- a/drivers/net/atl1e/atl1e_main.c
+++ b/drivers/net/atl1e/atl1e_main.c
@@ -1326,9 +1326,9 @@ static irqreturn_t atl1e_intr(int irq, void *data)
 			AT_WRITE_REG(hw, REG_IMR,
 				     IMR_NORMAL_MASK & ~ISR_RX_EVENT);
 			AT_WRITE_FLUSH(hw);
-			if (likely(netif_rx_schedule_prep(
+			if (likely(napi_schedule_prep(
 				   &adapter->napi)))
-				__netif_rx_schedule(&adapter->napi);
+				__napi_schedule(&adapter->napi);
 		}
 	} while (--max_ints > 0);
 	/* re-enable Interrupt*/
@@ -1514,7 +1514,7 @@ static int atl1e_clean(struct napi_struct *napi, int budget)
 	/* If no Tx and not enough Rx work done, exit the polling mode */
 	if (work_done < budget) {
 quit_polling:
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		imr_data = AT_READ_REG(&adapter->hw, REG_IMR);
 		AT_WRITE_REG(&adapter->hw, REG_IMR, imr_data | ISR_RX_EVENT);
 		/* test debug */
diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index c38512ebcea6..92aaaa1ee9f1 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -874,7 +874,7 @@ static int b44_poll(struct napi_struct *napi, int budget)
 	}
 
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		b44_enable_ints(bp);
 	}
 
@@ -906,13 +906,13 @@ static irqreturn_t b44_interrupt(int irq, void *dev_id)
 			goto irq_ack;
 		}
 
-		if (netif_rx_schedule_prep(&bp->napi)) {
+		if (napi_schedule_prep(&bp->napi)) {
 			/* NOTE: These writes are posted by the readback of
 			 *       the ISTAT register below.
 			 */
 			bp->istat = istat;
 			__b44_disable_ints(bp);
-			__netif_rx_schedule(&bp->napi);
+			__napi_schedule(&bp->napi);
 		} else {
 			printk(KERN_ERR PFX "%s: Error, poll already scheduled\n",
 			       dev->name);
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index d4a3dac21dcf..e817802b2483 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3053,7 +3053,7 @@ bnx2_msi(int irq, void *dev_instance)
 	if (unlikely(atomic_read(&bp->intr_sem) != 0))
 		return IRQ_HANDLED;
 
-	netif_rx_schedule(&bnapi->napi);
+	napi_schedule(&bnapi->napi);
 
 	return IRQ_HANDLED;
 }
@@ -3070,7 +3070,7 @@ bnx2_msi_1shot(int irq, void *dev_instance)
 	if (unlikely(atomic_read(&bp->intr_sem) != 0))
 		return IRQ_HANDLED;
 
-	netif_rx_schedule(&bnapi->napi);
+	napi_schedule(&bnapi->napi);
 
 	return IRQ_HANDLED;
 }
@@ -3106,9 +3106,9 @@ bnx2_interrupt(int irq, void *dev_instance)
 	if (unlikely(atomic_read(&bp->intr_sem) != 0))
 		return IRQ_HANDLED;
 
-	if (netif_rx_schedule_prep(&bnapi->napi)) {
+	if (napi_schedule_prep(&bnapi->napi)) {
 		bnapi->last_status_idx = sblk->status_idx;
-		__netif_rx_schedule(&bnapi->napi);
+		__napi_schedule(&bnapi->napi);
 	}
 
 	return IRQ_HANDLED;
@@ -3218,7 +3218,7 @@ static int bnx2_poll_msix(struct napi_struct *napi, int budget)
 		rmb();
 		if (likely(!bnx2_has_fast_work(bnapi))) {
 
-			netif_rx_complete(napi);
+			napi_complete(napi);
 			REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
 			       BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
 			       bnapi->last_status_idx);
@@ -3251,7 +3251,7 @@ static int bnx2_poll(struct napi_struct *napi, int budget)
 
 		rmb();
 		if (likely(!bnx2_has_work(bnapi))) {
-			netif_rx_complete(napi);
+			napi_complete(napi);
 			if (likely(bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)) {
 				REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
 				       BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 074374ff93f3..21764bfc048e 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -1647,7 +1647,7 @@ static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie)
 	prefetch(&fp->status_blk->c_status_block.status_block_index);
 	prefetch(&fp->status_blk->u_status_block.status_block_index);
 
-	netif_rx_schedule(&bnx2x_fp(bp, index, napi));
+	napi_schedule(&bnx2x_fp(bp, index, napi));
 
 	return IRQ_HANDLED;
 }
@@ -1686,7 +1686,7 @@ static irqreturn_t bnx2x_interrupt(int irq, void *dev_instance)
 		prefetch(&fp->status_blk->c_status_block.status_block_index);
 		prefetch(&fp->status_blk->u_status_block.status_block_index);
 
-		netif_rx_schedule(&bnx2x_fp(bp, 0, napi));
+		napi_schedule(&bnx2x_fp(bp, 0, napi));
 
 		status &= ~mask;
 	}
@@ -9339,7 +9339,7 @@ static int bnx2x_poll(struct napi_struct *napi, int budget)
 #ifdef BNX2X_STOP_ON_ERROR
 poll_panic:
 #endif
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		bnx2x_ack_sb(bp, FP_SB_ID(fp), USTORM_ID,
 			     le16_to_cpu(fp->fp_u_idx), IGU_INT_NOP, 1);
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 840b3d1a22f5..bb46be275339 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2506,7 +2506,7 @@ static irqreturn_t cas_interruptN(int irq, void *dev_id)
 	if (status & INTR_RX_DONE_ALT) { /* handle rx separately */
 #ifdef USE_NAPI
 		cas_mask_intr(cp);
-		netif_rx_schedule(&cp->napi);
+		napi_schedule(&cp->napi);
 #else
 		cas_rx_ringN(cp, ring, 0);
 #endif
@@ -2557,7 +2557,7 @@ static irqreturn_t cas_interrupt1(int irq, void *dev_id)
 	if (status & INTR_RX_DONE_ALT) { /* handle rx separately */
 #ifdef USE_NAPI
 		cas_mask_intr(cp);
-		netif_rx_schedule(&cp->napi);
+		napi_schedule(&cp->napi);
 #else
 		cas_rx_ringN(cp, 1, 0);
 #endif
@@ -2613,7 +2613,7 @@ static irqreturn_t cas_interrupt(int irq, void *dev_id)
 	if (status & INTR_RX_DONE) {
 #ifdef USE_NAPI
 		cas_mask_intr(cp);
-		netif_rx_schedule(&cp->napi);
+		napi_schedule(&cp->napi);
 #else
 		cas_rx_ringN(cp, 0, 0);
 #endif
@@ -2691,7 +2691,7 @@ rx_comp:
 #endif
 	spin_unlock_irqrestore(&cp->lock, flags);
 	if (enable_intr) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		cas_unmask_intr(cp);
 	}
 	return credits;
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index d984b7995763..840da83fb3cf 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1612,7 +1612,7 @@ int t1_poll(struct napi_struct *napi, int budget)
 	int work_done = process_responses(adapter, budget);
 
 	if (likely(work_done < budget)) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		writel(adapter->sge->respQ.cidx,
 		       adapter->regs + A_SG_SLEEPING);
 	}
@@ -1630,7 +1630,7 @@ irqreturn_t t1_interrupt(int irq, void *data)
 
 		if (napi_schedule_prep(&adapter->napi)) {
 			if (process_pure_responses(adapter))
-				__netif_rx_schedule(&adapter->napi);
+				__napi_schedule(&adapter->napi);
 			else {
 				/* no data, no NAPI needed */
 				writel(sge->respQ.cidx, adapter->regs + A_SG_SLEEPING);
diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c
index f66548751c38..4dad04e91f6d 100644
--- a/drivers/net/cpmac.c
+++ b/drivers/net/cpmac.c
@@ -428,7 +428,7 @@ static int cpmac_poll(struct napi_struct *napi, int budget)
 			printk(KERN_WARNING "%s: rx: polling, but no queue\n",
 			       priv->dev->name);
 		spin_unlock(&priv->rx_lock);
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		return 0;
 	}
 
@@ -514,7 +514,7 @@ static int cpmac_poll(struct napi_struct *napi, int budget)
 	if (processed == 0) {
 		/* we ran out of packets to read,
 		 * revert to interrupt-driven mode */
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		cpmac_write(priv->regs, CPMAC_RX_INT_ENABLE, 1);
 		return 0;
 	}
@@ -536,7 +536,7 @@ fatal_error:
 	}
 
 	spin_unlock(&priv->rx_lock);
-	netif_rx_complete(napi);
+	napi_complete(napi);
 	netif_tx_stop_all_queues(priv->dev);
 	napi_disable(&priv->napi);
 
@@ -802,9 +802,9 @@ static irqreturn_t cpmac_irq(int irq, void *dev_id)
 
 	if (status & MAC_INT_RX) {
 		queue = (status >> 8) & 7;
-		if (netif_rx_schedule_prep(&priv->napi)) {
+		if (napi_schedule_prep(&priv->napi)) {
 			cpmac_write(priv->regs, CPMAC_RX_INT_CLEAR, 1 << queue);
-			__netif_rx_schedule(&priv->napi);
+			__napi_schedule(&priv->napi);
 		}
 	}
 
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 86bb876fb123..861d2eeaa43c 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1944,9 +1944,9 @@ static irqreturn_t e100_intr(int irq, void *dev_id)
 	if (stat_ack & stat_ack_rnr)
 		nic->ru_running = RU_SUSPENDED;
 
-	if (likely(netif_rx_schedule_prep(&nic->napi))) {
+	if (likely(napi_schedule_prep(&nic->napi))) {
 		e100_disable_irq(nic);
-		__netif_rx_schedule(&nic->napi);
+		__napi_schedule(&nic->napi);
 	}
 
 	return IRQ_HANDLED;
@@ -1962,7 +1962,7 @@ static int e100_poll(struct napi_struct *napi, int budget)
 
 	/* If budget not fully consumed, exit the polling mode */
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		e100_enable_irq(nic);
 	}
 
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 26474c92193f..ffe466e0afb9 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -3687,12 +3687,12 @@ static irqreturn_t e1000_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	if (likely(netif_rx_schedule_prep(&adapter->napi))) {
+	if (likely(napi_schedule_prep(&adapter->napi))) {
 		adapter->total_tx_bytes = 0;
 		adapter->total_tx_packets = 0;
 		adapter->total_rx_bytes = 0;
 		adapter->total_rx_packets = 0;
-		__netif_rx_schedule(&adapter->napi);
+		__napi_schedule(&adapter->napi);
 	} else
 		e1000_irq_enable(adapter);
 
@@ -3747,12 +3747,12 @@ static irqreturn_t e1000_intr(int irq, void *data)
 		ew32(IMC, ~0);
 		E1000_WRITE_FLUSH();
 	}
-	if (likely(netif_rx_schedule_prep(&adapter->napi))) {
+	if (likely(napi_schedule_prep(&adapter->napi))) {
 		adapter->total_tx_bytes = 0;
 		adapter->total_tx_packets = 0;
 		adapter->total_rx_bytes = 0;
 		adapter->total_rx_packets = 0;
-		__netif_rx_schedule(&adapter->napi);
+		__napi_schedule(&adapter->napi);
 	} else
 		/* this really should not happen! if it does it is basically a
 		 * bug, but not a hard error, so enable ints and continue */
@@ -3793,7 +3793,7 @@ static int e1000_clean(struct napi_struct *napi, int budget)
 	if (work_done < budget) {
 		if (likely(adapter->itr_setting & 3))
 			e1000_set_itr(adapter);
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		e1000_irq_enable(adapter);
 	}
 
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 91817d0afcaf..ff5b66adfc42 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -1179,12 +1179,12 @@ static irqreturn_t e1000_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	if (netif_rx_schedule_prep(&adapter->napi)) {
+	if (napi_schedule_prep(&adapter->napi)) {
 		adapter->total_tx_bytes = 0;
 		adapter->total_tx_packets = 0;
 		adapter->total_rx_bytes = 0;
 		adapter->total_rx_packets = 0;
-		__netif_rx_schedule(&adapter->napi);
+		__napi_schedule(&adapter->napi);
 	}
 
 	return IRQ_HANDLED;
@@ -1246,12 +1246,12 @@ static irqreturn_t e1000_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	if (netif_rx_schedule_prep(&adapter->napi)) {
+	if (napi_schedule_prep(&adapter->napi)) {
 		adapter->total_tx_bytes = 0;
 		adapter->total_tx_packets = 0;
 		adapter->total_rx_bytes = 0;
 		adapter->total_rx_packets = 0;
-		__netif_rx_schedule(&adapter->napi);
+		__napi_schedule(&adapter->napi);
 	}
 
 	return IRQ_HANDLED;
@@ -1320,10 +1320,10 @@ static irqreturn_t e1000_intr_msix_rx(int irq, void *data)
 		adapter->rx_ring->set_itr = 0;
 	}
 
-	if (netif_rx_schedule_prep(&adapter->napi)) {
+	if (napi_schedule_prep(&adapter->napi)) {
 		adapter->total_rx_bytes = 0;
 		adapter->total_rx_packets = 0;
-		__netif_rx_schedule(&adapter->napi);
+		__napi_schedule(&adapter->napi);
 	}
 	return IRQ_HANDLED;
 }
@@ -2028,7 +2028,7 @@ clean_rx:
 	if (work_done < budget) {
 		if (adapter->itr_setting & 3)
 			e1000_set_itr(adapter);
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (adapter->msix_entries)
 			ew32(IMS, adapter->rx_ring->ims_val);
 		else
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index dfe92264e825..8dc2047da5c0 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -830,7 +830,7 @@ static int ehea_poll(struct napi_struct *napi, int budget)
 	while ((rx != budget) || force_irq) {
 		pr->poll_counter = 0;
 		force_irq = 0;
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		ehea_reset_cq_ep(pr->recv_cq);
 		ehea_reset_cq_ep(pr->send_cq);
 		ehea_reset_cq_n1(pr->recv_cq);
@@ -841,7 +841,7 @@ static int ehea_poll(struct napi_struct *napi, int budget)
 		if (!cqe && !cqe_skb)
 			return rx;
 
-		if (!netif_rx_reschedule(napi))
+		if (!napi_reschedule(napi))
 			return rx;
 
 		cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES);
@@ -859,7 +859,7 @@ static void ehea_netpoll(struct net_device *dev)
 	int i;
 
 	for (i = 0; i < port->num_def_qps; i++)
-		netif_rx_schedule(&port->port_res[i].napi);
+		napi_schedule(&port->port_res[i].napi);
 }
 #endif
 
@@ -867,7 +867,7 @@ static irqreturn_t ehea_recv_irq_handler(int irq, void *param)
 {
 	struct ehea_port_res *pr = param;
 
-	netif_rx_schedule(&pr->napi);
+	napi_schedule(&pr->napi);
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 7d60551d538f..4617956821cd 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -411,8 +411,8 @@ static irqreturn_t enic_isr_legacy(int irq, void *data)
 	}
 
 	if (ENIC_TEST_INTR(pba, ENIC_INTX_WQ_RQ)) {
-		if (netif_rx_schedule_prep(&enic->napi))
-			__netif_rx_schedule(&enic->napi);
+		if (napi_schedule_prep(&enic->napi))
+			__napi_schedule(&enic->napi);
 	} else {
 		vnic_intr_unmask(&enic->intr[ENIC_INTX_WQ_RQ]);
 	}
@@ -440,7 +440,7 @@ static irqreturn_t enic_isr_msi(int irq, void *data)
 	 * writes).
 	 */
 
-	netif_rx_schedule(&enic->napi);
+	napi_schedule(&enic->napi);
 
 	return IRQ_HANDLED;
 }
@@ -450,7 +450,7 @@ static irqreturn_t enic_isr_msix_rq(int irq, void *data)
 	struct enic *enic = data;
 
 	/* schedule NAPI polling for RQ cleanup */
-	netif_rx_schedule(&enic->napi);
+	napi_schedule(&enic->napi);
 
 	return IRQ_HANDLED;
 }
@@ -1068,7 +1068,7 @@ static int enic_poll(struct napi_struct *napi, int budget)
 		if (netdev->features & NETIF_F_LRO)
 			lro_flush_all(&enic->lro_mgr);
 
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		vnic_intr_unmask(&enic->intr[ENIC_MSIX_RQ]);
 	}
 
@@ -1112,7 +1112,7 @@ static int enic_poll_msix(struct napi_struct *napi, int budget)
 		if (netdev->features & NETIF_F_LRO)
 			lro_flush_all(&enic->lro_mgr);
 
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		vnic_intr_unmask(&enic->intr[ENIC_MSIX_RQ]);
 	}
 
diff --git a/drivers/net/epic100.c b/drivers/net/epic100.c
index a539bc3163cf..b60e27dfcfa7 100644
--- a/drivers/net/epic100.c
+++ b/drivers/net/epic100.c
@@ -1114,9 +1114,9 @@ static irqreturn_t epic_interrupt(int irq, void *dev_instance)
 
 	if ((status & EpicNapiEvent) && !ep->reschedule_in_poll) {
 		spin_lock(&ep->napi_lock);
-		if (netif_rx_schedule_prep(&ep->napi)) {
+		if (napi_schedule_prep(&ep->napi)) {
 			epic_napi_irq_off(dev, ep);
-			__netif_rx_schedule(&ep->napi);
+			__napi_schedule(&ep->napi);
 		} else
 			ep->reschedule_in_poll++;
 		spin_unlock(&ep->napi_lock);
@@ -1293,7 +1293,7 @@ rx_action:
 
 		more = ep->reschedule_in_poll;
 		if (!more) {
-			__netif_rx_complete(napi);
+			__napi_complete(napi);
 			outl(EpicNapiEvent, ioaddr + INTSTAT);
 			epic_napi_irq_on(dev, ep);
 		} else
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 5b910cf63740..875509d7d86b 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -1760,7 +1760,7 @@ static void nv_do_rx_refill(unsigned long data)
 	struct fe_priv *np = netdev_priv(dev);
 
 	/* Just reschedule NAPI rx processing */
-	netif_rx_schedule(&np->napi);
+	napi_schedule(&np->napi);
 }
 #else
 static void nv_do_rx_refill(unsigned long data)
@@ -3406,7 +3406,7 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
 #ifdef CONFIG_FORCEDETH_NAPI
 		if (events & NVREG_IRQ_RX_ALL) {
 			spin_lock(&np->lock);
-			netif_rx_schedule(&np->napi);
+			napi_schedule(&np->napi);
 
 			/* Disable furthur receive irq's */
 			np->irqmask &= ~NVREG_IRQ_RX_ALL;
@@ -3523,7 +3523,7 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
 #ifdef CONFIG_FORCEDETH_NAPI
 		if (events & NVREG_IRQ_RX_ALL) {
 			spin_lock(&np->lock);
-			netif_rx_schedule(&np->napi);
+			napi_schedule(&np->napi);
 
 			/* Disable furthur receive irq's */
 			np->irqmask &= ~NVREG_IRQ_RX_ALL;
@@ -3680,7 +3680,7 @@ static int nv_napi_poll(struct napi_struct *napi, int budget)
 		/* re-enable receive interrupts */
 		spin_lock_irqsave(&np->lock, flags);
 
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 
 		np->irqmask |= NVREG_IRQ_RX_ALL;
 		if (np->msi_flags & NV_MSI_X_ENABLED)
@@ -3706,7 +3706,7 @@ static irqreturn_t nv_nic_irq_rx(int foo, void *data)
 	writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
 
 	if (events) {
-		netif_rx_schedule(&np->napi);
+		napi_schedule(&np->napi);
 		/* disable receive interrupts on the nic */
 		writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
 		pci_push(base);
diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index ce900e54d8d1..b037ce9857bf 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -209,7 +209,7 @@ static int fs_enet_rx_napi(struct napi_struct *napi, int budget)
 
 	if (received < budget) {
 		/* done */
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		(*fep->ops->napi_enable_rx)(dev);
 	}
 	return received;
@@ -478,7 +478,7 @@ fs_enet_interrupt(int irq, void *dev_id)
 				/* NOTE: it is possible for FCCs in NAPI mode    */
 				/* to submit a spurious interrupt while in poll  */
 				if (napi_ok)
-					__netif_rx_schedule(&fep->napi);
+					__napi_schedule(&fep->napi);
 			}
 		}
 
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index ea530673236e..2e76699f8104 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -1627,9 +1627,9 @@ static void gfar_schedule_cleanup(struct net_device *dev)
 	spin_lock_irqsave(&priv->txlock, flags);
 	spin_lock(&priv->rxlock);
 
-	if (netif_rx_schedule_prep(&priv->napi)) {
+	if (napi_schedule_prep(&priv->napi)) {
 		gfar_write(&priv->regs->imask, IMASK_RTX_DISABLED);
-		__netif_rx_schedule(&priv->napi);
+		__napi_schedule(&priv->napi);
 	}
 
 	spin_unlock(&priv->rxlock);
@@ -1886,7 +1886,7 @@ static int gfar_poll(struct napi_struct *napi, int budget)
 		return budget;
 
 	if (rx_cleaned < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		/* Clear the halt bit in RSTAT */
 		gfar_write(&priv->regs->rstat, RSTAT_CLEAR_RHALT);
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index dfa6348ac1dc..5c6315df86b9 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -1028,10 +1028,10 @@ static int ibmveth_poll(struct napi_struct *napi, int budget)
 
 		ibmveth_assert(lpar_rc == H_SUCCESS);
 
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		if (ibmveth_rxq_pending_buffer(adapter) &&
-		    netif_rx_reschedule(napi)) {
+		    napi_reschedule(napi)) {
 			lpar_rc = h_vio_signal(adapter->vdev->unit_address,
 					       VIO_IRQ_DISABLE);
 			goto restart_poll;
@@ -1047,11 +1047,11 @@ static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance)
 	struct ibmveth_adapter *adapter = netdev_priv(netdev);
 	unsigned long lpar_rc;
 
-	if (netif_rx_schedule_prep(&adapter->napi)) {
+	if (napi_schedule_prep(&adapter->napi)) {
 		lpar_rc = h_vio_signal(adapter->vdev->unit_address,
 				       VIO_IRQ_DISABLE);
 		ibmveth_assert(lpar_rc == H_SUCCESS);
-		__netif_rx_schedule(&adapter->napi);
+		__napi_schedule(&adapter->napi);
 	}
 	return IRQ_HANDLED;
 }
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index b82b0fb2056c..3806bb9d8bfa 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3386,8 +3386,8 @@ static irqreturn_t igb_msix_rx(int irq, void *data)
 
 	igb_write_itr(rx_ring);
 
-	if (netif_rx_schedule_prep(&rx_ring->napi))
-		__netif_rx_schedule(&rx_ring->napi);
+	if (napi_schedule_prep(&rx_ring->napi))
+		__napi_schedule(&rx_ring->napi);
 
 #ifdef CONFIG_IGB_DCA
 	if (rx_ring->adapter->flags & IGB_FLAG_DCA_ENABLED)
@@ -3539,7 +3539,7 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	netif_rx_schedule(&adapter->rx_ring[0].napi);
+	napi_schedule(&adapter->rx_ring[0].napi);
 
 	return IRQ_HANDLED;
 }
@@ -3577,7 +3577,7 @@ static irqreturn_t igb_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	netif_rx_schedule(&adapter->rx_ring[0].napi);
+	napi_schedule(&adapter->rx_ring[0].napi);
 
 	return IRQ_HANDLED;
 }
@@ -3612,7 +3612,7 @@ static int igb_poll(struct napi_struct *napi, int budget)
 	    !netif_running(netdev)) {
 		if (adapter->itr_setting & 3)
 			igb_set_itr(adapter);
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (!test_bit(__IGB_DOWN, &adapter->state))
 			igb_irq_enable(adapter);
 		return 0;
@@ -3638,7 +3638,7 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
 
 	/* If not enough Rx work done, exit the polling mode */
 	if ((work_done == 0) || !netif_running(netdev)) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		if (adapter->itr_setting & 3) {
 			if (adapter->num_rx_queues == 1)
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index eee28d395682..e2ef16b29700 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1721,14 +1721,14 @@ ixgb_intr(int irq, void *data)
 		if (!test_bit(__IXGB_DOWN, &adapter->flags))
 			mod_timer(&adapter->watchdog_timer, jiffies);
 
-	if (netif_rx_schedule_prep(&adapter->napi)) {
+	if (napi_schedule_prep(&adapter->napi)) {
 
 		/* Disable interrupts and register for poll. The flush
 		  of the posted write is intentionally left out.
 		*/
 
 		IXGB_WRITE_REG(&adapter->hw, IMC, ~0);
-		__netif_rx_schedule(&adapter->napi);
+		__napi_schedule(&adapter->napi);
 	}
 	return IRQ_HANDLED;
 }
@@ -1749,7 +1749,7 @@ ixgb_clean(struct napi_struct *napi, int budget)
 
 	/* If budget not fully consumed, exit the polling mode */
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (!test_bit(__IXGB_DOWN, &adapter->flags))
 			ixgb_irq_enable(adapter);
 	}
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index d2f4d5f508b7..7489094bbbc8 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1015,7 +1015,7 @@ static irqreturn_t ixgbe_msix_clean_rx(int irq, void *data)
 	rx_ring = &(adapter->rx_ring[r_idx]);
 	/* disable interrupts on this vector only */
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, rx_ring->v_idx);
-	netif_rx_schedule(&q_vector->napi);
+	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
 }
@@ -1056,7 +1056,7 @@ static int ixgbe_clean_rxonly(struct napi_struct *napi, int budget)
 
 	/* If all Rx work done, exit the polling mode */
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (adapter->itr_setting & 3)
 			ixgbe_set_itr_msix(q_vector);
 		if (!test_bit(__IXGBE_DOWN, &adapter->state))
@@ -1105,7 +1105,7 @@ static int ixgbe_clean_rxonly_many(struct napi_struct *napi, int budget)
 	rx_ring = &(adapter->rx_ring[r_idx]);
 	/* If all Rx work done, exit the polling mode */
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (adapter->itr_setting & 3)
 			ixgbe_set_itr_msix(q_vector);
 		if (!test_bit(__IXGBE_DOWN, &adapter->state))
@@ -1381,13 +1381,13 @@ static irqreturn_t ixgbe_intr(int irq, void *data)
 
 	ixgbe_check_fan_failure(adapter, eicr);
 
-	if (netif_rx_schedule_prep(&adapter->q_vector[0].napi)) {
+	if (napi_schedule_prep(&adapter->q_vector[0].napi)) {
 		adapter->tx_ring[0].total_packets = 0;
 		adapter->tx_ring[0].total_bytes = 0;
 		adapter->rx_ring[0].total_packets = 0;
 		adapter->rx_ring[0].total_bytes = 0;
 		/* would disable interrupts here but EIAM disabled it */
-		__netif_rx_schedule(&adapter->q_vector[0].napi);
+		__napi_schedule(&adapter->q_vector[0].napi);
 	}
 
 	return IRQ_HANDLED;
@@ -2317,7 +2317,7 @@ static int ixgbe_poll(struct napi_struct *napi, int budget)
 
 	/* If budget not fully consumed, exit the polling mode */
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (adapter->itr_setting & 3)
 			ixgbe_set_itr(adapter);
 		if (!test_bit(__IXGBE_DOWN, &adapter->state))
diff --git a/drivers/net/ixp2000/ixpdev.c b/drivers/net/ixp2000/ixpdev.c
index 014745720560..d3bf2f017cc2 100644
--- a/drivers/net/ixp2000/ixpdev.c
+++ b/drivers/net/ixp2000/ixpdev.c
@@ -141,7 +141,7 @@ static int ixpdev_poll(struct napi_struct *napi, int budget)
 			break;
 	} while (ixp2000_reg_read(IXP2000_IRQ_THD_RAW_STATUS_A_0) & 0x00ff);
 
-	netif_rx_complete(napi);
+	napi_complete(napi);
 	ixp2000_reg_write(IXP2000_IRQ_THD_ENABLE_SET_A_0, 0x00ff);
 
 	return rx;
@@ -204,7 +204,7 @@ static irqreturn_t ixpdev_interrupt(int irq, void *dev_id)
 
 		ixp2000_reg_wrb(IXP2000_IRQ_THD_ENABLE_CLEAR_A_0, 0x00ff);
 		if (likely(napi_schedule_prep(&ip->napi))) {
-			__netif_rx_schedule(&ip->napi);
+			__napi_schedule(&ip->napi);
 		} else {
 			printk(KERN_CRIT "ixp2000: irq while polling!!\n");
 		}
diff --git a/drivers/net/jme.h b/drivers/net/jme.h
index 5154411b5e6b..e321c678b11c 100644
--- a/drivers/net/jme.h
+++ b/drivers/net/jme.h
@@ -398,15 +398,15 @@ struct jme_ring {
 #define JME_NAPI_WEIGHT(w) int w
 #define JME_NAPI_WEIGHT_VAL(w) w
 #define JME_NAPI_WEIGHT_SET(w, r)
-#define JME_RX_COMPLETE(dev, napis) netif_rx_complete(napis)
+#define JME_RX_COMPLETE(dev, napis) napi_complete(napis)
 #define JME_NAPI_ENABLE(priv) napi_enable(&priv->napi);
 #define JME_NAPI_DISABLE(priv) \
 	if (!napi_disable_pending(&priv->napi)) \
 		napi_disable(&priv->napi);
 #define JME_RX_SCHEDULE_PREP(priv) \
-	netif_rx_schedule_prep(&priv->napi)
+	napi_schedule_prep(&priv->napi)
 #define JME_RX_SCHEDULE(priv) \
-	__netif_rx_schedule(&priv->napi);
+	__napi_schedule(&priv->napi);
 
 /*
  * Jmac Adapter Private data
diff --git a/drivers/net/korina.c b/drivers/net/korina.c
index 75010cac76ac..38d6649a29c4 100644
--- a/drivers/net/korina.c
+++ b/drivers/net/korina.c
@@ -334,7 +334,7 @@ static irqreturn_t korina_rx_dma_interrupt(int irq, void *dev_id)
 				DMA_STAT_HALT | DMA_STAT_ERR),
 				&lp->rx_dma_regs->dmasm);
 
-		netif_rx_schedule(&lp->napi);
+		napi_schedule(&lp->napi);
 
 		if (dmas & DMA_STAT_ERR)
 			printk(KERN_ERR DRV_NAME "%s: DMA error\n", dev->name);
@@ -468,7 +468,7 @@ static int korina_poll(struct napi_struct *napi, int budget)
 
 	work_done = korina_rx(dev, budget);
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		writel(readl(&lp->rx_dma_regs->dmasm) &
 			~(DMA_STAT_DONE | DMA_STAT_HALT | DMA_STAT_ERR),
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index f6c4936e2fa8..dc33d51213d7 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -527,7 +527,7 @@ static int macb_poll(struct napi_struct *napi, int budget)
 		 * this function was called last time, and no packets
 		 * have been received since.
 		 */
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		goto out;
 	}
 
@@ -538,13 +538,13 @@ static int macb_poll(struct napi_struct *napi, int budget)
 		dev_warn(&bp->pdev->dev,
 			 "No RX buffers complete, status = %02lx\n",
 			 (unsigned long)status);
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		goto out;
 	}
 
 	work_done = macb_rx(bp, budget);
 	if (work_done < budget)
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 	/*
 	 * We've done what we can to clean the buffers. Make sure we
@@ -579,7 +579,7 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id)
 		}
 
 		if (status & MACB_RX_INT_FLAGS) {
-			if (netif_rx_schedule_prep(&bp->napi)) {
+			if (napi_schedule_prep(&bp->napi)) {
 				/*
 				 * There's no point taking any more interrupts
 				 * until we have processed the buffers
@@ -587,7 +587,7 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id)
 				macb_writel(bp, IDR, MACB_RX_INT_FLAGS);
 				dev_dbg(&bp->pdev->dev,
 					"scheduling RX softirq\n");
-				__netif_rx_schedule(&bp->napi);
+				__napi_schedule(&bp->napi);
 			}
 		}
 
diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index c61b0bdca1a4..ac55ebd2f146 100644
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -814,7 +814,7 @@ void mlx4_en_rx_irq(struct mlx4_cq *mcq)
 	struct mlx4_en_priv *priv = netdev_priv(cq->dev);
 
 	if (priv->port_up)
-		netif_rx_schedule(&cq->napi);
+		napi_schedule(&cq->napi);
 	else
 		mlx4_en_arm_cq(priv, cq);
 }
@@ -834,7 +834,7 @@ int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget)
 		INC_PERF_COUNTER(priv->pstats.napi_quota);
 	else {
 		/* Done for now */
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		mlx4_en_arm_cq(priv, cq);
 	}
 	return done;
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index e9c1296b267e..2dacb8852dc3 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -1514,7 +1514,7 @@ static int myri10ge_poll(struct napi_struct *napi, int budget)
 	work_done = myri10ge_clean_rx_done(ss, budget);
 
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		put_be32(htonl(3), ss->irq_claim);
 	}
 	return work_done;
@@ -1532,7 +1532,7 @@ static irqreturn_t myri10ge_intr(int irq, void *arg)
 	/* an interrupt on a non-zero receive-only slice is implicitly
 	 * valid  since MSI-X irqs are not shared */
 	if ((mgp->dev->real_num_tx_queues == 1) && (ss != mgp->ss)) {
-		netif_rx_schedule(&ss->napi);
+		napi_schedule(&ss->napi);
 		return (IRQ_HANDLED);
 	}
 
@@ -1543,7 +1543,7 @@ static irqreturn_t myri10ge_intr(int irq, void *arg)
 	/* low bit indicates receives are present, so schedule
 	 * napi poll handler */
 	if (stats->valid & 1)
-		netif_rx_schedule(&ss->napi);
+		napi_schedule(&ss->napi);
 
 	if (!mgp->msi_enabled && !mgp->msix_enabled) {
 		put_be32(0, mgp->irq_deassert);
diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c
index c5dec54251bf..c23a58624a33 100644
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -2198,10 +2198,10 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
 
 	prefetch(&np->rx_skbuff[np->cur_rx % RX_RING_SIZE]);
 
-	if (netif_rx_schedule_prep(&np->napi)) {
+	if (napi_schedule_prep(&np->napi)) {
 		/* Disable interrupts and register for poll */
 		natsemi_irq_disable(dev);
-		__netif_rx_schedule(&np->napi);
+		__napi_schedule(&np->napi);
 	} else
 		printk(KERN_WARNING
 	       	       "%s: Ignoring interrupt, status %#08x, mask %#08x.\n",
@@ -2253,7 +2253,7 @@ static int natsemi_poll(struct napi_struct *napi, int budget)
 		np->intr_status = readl(ioaddr + IntrStatus);
 	} while (np->intr_status);
 
-	netif_rx_complete(napi);
+	napi_complete(napi);
 
 	/* Reenable interrupts providing nothing is trying to shut
 	 * the chip down. */
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index d854f07ef4d3..1139e637f5da 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -1631,7 +1631,7 @@ static int netxen_nic_poll(struct napi_struct *napi, int budget)
 	}
 
 	if ((work_done < budget) && tx_complete) {
-		netif_rx_complete(&adapter->napi);
+		napi_complete(&adapter->napi);
 		netxen_nic_enable_int(adapter);
 	}
 
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 0c0b752315ca..4a5a089fa301 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -3669,7 +3669,7 @@ static int niu_poll(struct napi_struct *napi, int budget)
 	work_done = niu_poll_core(np, lp, budget);
 
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		niu_ldg_rearm(np, lp, 1);
 	}
 	return work_done;
@@ -4088,12 +4088,12 @@ static void __niu_fastpath_interrupt(struct niu *np, int ldg, u64 v0)
 static void niu_schedule_napi(struct niu *np, struct niu_ldg *lp,
 			      u64 v0, u64 v1, u64 v2)
 {
-	if (likely(netif_rx_schedule_prep(&lp->napi))) {
+	if (likely(napi_schedule_prep(&lp->napi))) {
 		lp->v0 = v0;
 		lp->v1 = v1;
 		lp->v2 = v2;
 		__niu_fastpath_interrupt(np, lp->ldg_num, v0);
-		__netif_rx_schedule(&lp->napi);
+		__napi_schedule(&lp->napi);
 	}
 }
 
diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index d0349e7d73ea..5eeb5a87b738 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -970,7 +970,7 @@ static irqreturn_t pasemi_mac_rx_intr(int irq, void *data)
 	if (*chan->status & PAS_STATUS_ERROR)
 		reg |= PAS_IOB_DMA_RXCH_RESET_DINTC;
 
-	netif_rx_schedule(&mac->napi);
+	napi_schedule(&mac->napi);
 
 	write_iob_reg(PAS_IOB_DMA_RXCH_RESET(chan->chno), reg);
 
@@ -1010,7 +1010,7 @@ static irqreturn_t pasemi_mac_tx_intr(int irq, void *data)
 
 	mod_timer(&txring->clean_timer, jiffies + (TX_CLEAN_INTERVAL)*2);
 
-	netif_rx_schedule(&mac->napi);
+	napi_schedule(&mac->napi);
 
 	if (reg)
 		write_iob_reg(PAS_IOB_DMA_TXCH_RESET(chan->chno), reg);
@@ -1639,7 +1639,7 @@ static int pasemi_mac_poll(struct napi_struct *napi, int budget)
 	pkts = pasemi_mac_clean_rx(rx_ring(mac), budget);
 	if (pkts < budget) {
 		/* all done, no more packets present */
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		pasemi_mac_restart_rx_intr(mac);
 		pasemi_mac_restart_tx_intr(mac);
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c
index 665a4286da39..80124fac65fa 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -1397,7 +1397,7 @@ static int pcnet32_poll(struct napi_struct *napi, int budget)
 	if (work_done < budget) {
 		spin_lock_irqsave(&lp->lock, flags);
 
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 
 		/* clear interrupt masks */
 		val = lp->a.read_csr(ioaddr, CSR3);
@@ -2592,14 +2592,14 @@ pcnet32_interrupt(int irq, void *dev_id)
 				       dev->name, csr0);
 			/* unlike for the lance, there is no restart needed */
 		}
-		if (netif_rx_schedule_prep(&lp->napi)) {
+		if (napi_schedule_prep(&lp->napi)) {
 			u16 val;
 			/* set interrupt masks */
 			val = lp->a.read_csr(ioaddr, CSR3);
 			val |= 0x5f00;
 			lp->a.write_csr(ioaddr, CSR3, val);
 			mmiowb();
-			__netif_rx_schedule(&lp->napi);
+			__napi_schedule(&lp->napi);
 			break;
 		}
 		csr0 = lp->a.read_csr(ioaddr, CSR0);
diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index 189ec29ac7a4..8b2823c8dccf 100644
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -2292,7 +2292,7 @@ static int ql_poll(struct napi_struct *napi, int budget)
 
 	if (tx_cleaned + rx_cleaned != budget) {
 		spin_lock_irqsave(&qdev->hw_lock, hw_flags);
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 		ql_update_small_bufq_prod_index(qdev);
 		ql_update_lrg_bufq_prod_index(qdev);
 		writel(qdev->rsp_consumer_index,
@@ -2351,8 +2351,8 @@ static irqreturn_t ql3xxx_isr(int irq, void *dev_id)
 		spin_unlock(&qdev->adapter_lock);
 	} else if (value & ISP_IMR_DISABLE_CMPL_INT) {
 		ql_disable_interrupts(qdev);
-		if (likely(netif_rx_schedule_prep(&qdev->napi))) {
-			__netif_rx_schedule(&qdev->napi);
+		if (likely(napi_schedule_prep(&qdev->napi))) {
+			__napi_schedule(&qdev->napi);
 		}
 	} else {
 		return IRQ_NONE;
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 45421c8b6010..16eb9dd85286 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -1642,7 +1642,7 @@ static int ql_napi_poll_msix(struct napi_struct *napi, int budget)
 		rx_ring->cq_id);
 
 	if (work_done < budget) {
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 		ql_enable_completion_interrupt(qdev, rx_ring->irq);
 	}
 	return work_done;
@@ -1727,7 +1727,7 @@ static irqreturn_t qlge_msix_tx_isr(int irq, void *dev_id)
 static irqreturn_t qlge_msix_rx_isr(int irq, void *dev_id)
 {
 	struct rx_ring *rx_ring = dev_id;
-	netif_rx_schedule(&rx_ring->napi);
+	napi_schedule(&rx_ring->napi);
 	return IRQ_HANDLED;
 }
 
@@ -1813,7 +1813,7 @@ static irqreturn_t qlge_isr(int irq, void *dev_id)
 							      &rx_ring->rx_work,
 							      0);
 				else
-					netif_rx_schedule(&rx_ring->napi);
+					napi_schedule(&rx_ring->napi);
 				work_done++;
 			}
 		}
diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index 72fd9e97c190..cc0f886b0c29 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -677,7 +677,7 @@ static int r6040_poll(struct napi_struct *napi, int budget)
 	work_done = r6040_rx(dev, budget);
 
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		/* Enable RX interrupt */
 		iowrite16(ioread16(ioaddr + MIER) | RX_INTS, ioaddr + MIER);
 	}
@@ -714,7 +714,7 @@ static irqreturn_t r6040_interrupt(int irq, void *dev_id)
 
 		/* Mask off RX interrupt */
 		misr &= ~RX_INTS;
-		netif_rx_schedule(&lp->napi);
+		napi_schedule(&lp->napi);
 	}
 
 	/* TX interrupt request */
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 2c73ca606b35..1c4a980253fe 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -3581,8 +3581,8 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
 		RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
 		tp->intr_mask = ~tp->napi_event;
 
-		if (likely(netif_rx_schedule_prep(&tp->napi)))
-			__netif_rx_schedule(&tp->napi);
+		if (likely(napi_schedule_prep(&tp->napi)))
+			__napi_schedule(&tp->napi);
 		else if (netif_msg_intr(tp)) {
 			printk(KERN_INFO "%s: interrupt %04x in poll\n",
 			       dev->name, status);
@@ -3603,7 +3603,7 @@ static int rtl8169_poll(struct napi_struct *napi, int budget)
 	rtl8169_tx_interrupt(dev, tp, ioaddr);
 
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		tp->intr_mask = 0xffff;
 		/*
 		 * 20040426: the barrier is not strictly required but the
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index f5c57c059bca..2a96a10fd0cf 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -2852,7 +2852,7 @@ static int s2io_poll_msix(struct napi_struct *napi, int budget)
 	s2io_chk_rx_buffers(nic, ring);
 
 	if (pkts_processed < budget_org) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		/*Re Enable MSI-Rx Vector*/
 		addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
 		addr += 7 - ring->ring_no;
@@ -2889,7 +2889,7 @@ static int s2io_poll_inta(struct napi_struct *napi, int budget)
 			break;
 	}
 	if (pkts_processed < budget_org) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		/* Re enable the Rx interrupts for the ring */
 		writeq(0, &bar0->rx_traffic_mask);
 		readl(&bar0->rx_traffic_mask);
@@ -4342,7 +4342,7 @@ static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id)
 		val8 = (ring->ring_no == 0) ? 0x7f : 0xff;
 		writeb(val8, addr);
 		val8 = readb(addr);
-		netif_rx_schedule(&ring->napi);
+		napi_schedule(&ring->napi);
 	} else {
 		rx_intr_handler(ring, 0);
 		s2io_chk_rx_buffers(sp, ring);
@@ -4789,7 +4789,7 @@ static irqreturn_t s2io_isr(int irq, void *dev_id)
 
 		if (config->napi) {
 			if (reason & GEN_INTR_RXTRAFFIC) {
-				netif_rx_schedule(&sp->napi);
+				napi_schedule(&sp->napi);
 				writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask);
 				writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
 				readl(&bar0->rx_traffic_int);
diff --git a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c
index 31e38fae017f..3e11c1d6d792 100644
--- a/drivers/net/sb1250-mac.c
+++ b/drivers/net/sb1250-mac.c
@@ -2039,9 +2039,9 @@ static irqreturn_t sbmac_intr(int irq,void *dev_instance)
 		sbdma_tx_process(sc,&(sc->sbm_txdma), 0);
 
 	if (isr & (M_MAC_INT_CHANNEL << S_MAC_RX_CH0)) {
-		if (netif_rx_schedule_prep(&sc->napi)) {
+		if (napi_schedule_prep(&sc->napi)) {
 			__raw_writeq(0, sc->sbm_imr);
-			__netif_rx_schedule(&sc->napi);
+			__napi_schedule(&sc->napi);
 			/* Depend on the exit from poll to reenable intr */
 		}
 		else {
@@ -2667,7 +2667,7 @@ static int sbmac_poll(struct napi_struct *napi, int budget)
 	sbdma_tx_process(sc, &(sc->sbm_txdma), 1);
 
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 #ifdef CONFIG_SBMAC_COALESCE
 		__raw_writeq(((M_MAC_INT_EOP_COUNT | M_MAC_INT_EOP_TIMER) << S_MAC_TX_CH0) |
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 7673fd92eaf5..77aca5d67b57 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -225,11 +225,11 @@ static int efx_poll(struct napi_struct *napi, int budget)
 
 	if (rx_packets < budget) {
 		/* There is no race here; although napi_disable() will
-		 * only wait for netif_rx_complete(), this isn't a problem
+		 * only wait for napi_complete(), this isn't a problem
 		 * since efx_channel_processed() will have no effect if
 		 * interrupts have already been disabled.
 		 */
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		efx_channel_processed(channel);
 	}
 
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h
index 0dd7a532c78a..fb1ac0e63c0b 100644
--- a/drivers/net/sfc/efx.h
+++ b/drivers/net/sfc/efx.h
@@ -77,7 +77,7 @@ static inline void efx_schedule_channel(struct efx_channel *channel)
 		  channel->channel, raw_smp_processor_id());
 	channel->work_pending = true;
 
-	netif_rx_schedule(&channel->napi_str);
+	napi_schedule(&channel->napi_str);
 }
 
 #endif /* EFX_EFX_H */
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index c9dbb06f8c94..952d37ffee51 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -3214,7 +3214,7 @@ static int skge_poll(struct napi_struct *napi, int to_do)
 		unsigned long flags;
 
 		spin_lock_irqsave(&hw->hw_lock, flags);
-		__netif_rx_complete(napi);
+		__napi_complete(napi);
 		hw->intr_mask |= napimask[skge->port];
 		skge_write32(hw, B0_IMSK, hw->intr_mask);
 		skge_read32(hw, B0_IMSK);
@@ -3377,7 +3377,7 @@ static irqreturn_t skge_intr(int irq, void *dev_id)
 	if (status & (IS_XA1_F|IS_R1_F)) {
 		struct skge_port *skge = netdev_priv(hw->dev[0]);
 		hw->intr_mask &= ~(IS_XA1_F|IS_R1_F);
-		netif_rx_schedule(&skge->napi);
+		napi_schedule(&skge->napi);
 	}
 
 	if (status & IS_PA_TO_TX1)
@@ -3397,7 +3397,7 @@ static irqreturn_t skge_intr(int irq, void *dev_id)
 
 		if (status & (IS_XA2_F|IS_R2_F)) {
 			hw->intr_mask &= ~(IS_XA2_F|IS_R2_F);
-			netif_rx_schedule(&skge->napi);
+			napi_schedule(&skge->napi);
 		}
 
 		if (status & IS_PA_TO_RX2) {
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index f513bdf1c887..d271ae39c6f3 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -984,7 +984,7 @@ static int smsc911x_poll(struct napi_struct *napi, int budget)
 			/* We processed all packets available.  Tell NAPI it can
 			 * stop polling then re-enable rx interrupts */
 			smsc911x_reg_write(pdata, INT_STS, INT_STS_RSFL_);
-			netif_rx_complete(napi);
+			napi_complete(napi);
 			temp = smsc911x_reg_read(pdata, INT_EN);
 			temp |= INT_EN_RSFL_EN_;
 			smsc911x_reg_write(pdata, INT_EN, temp);
@@ -1485,16 +1485,16 @@ static irqreturn_t smsc911x_irqhandler(int irq, void *dev_id)
 	}
 
 	if (likely(intsts & inten & INT_STS_RSFL_)) {
-		if (likely(netif_rx_schedule_prep(&pdata->napi))) {
+		if (likely(napi_schedule_prep(&pdata->napi))) {
 			/* Disable Rx interrupts */
 			temp = smsc911x_reg_read(pdata, INT_EN);
 			temp &= (~INT_EN_RSFL_EN_);
 			smsc911x_reg_write(pdata, INT_EN, temp);
 			/* Schedule a NAPI poll */
-			__netif_rx_schedule(&pdata->napi);
+			__napi_schedule(&pdata->napi);
 		} else {
 			SMSC_WARNING(RX_ERR,
-				"netif_rx_schedule_prep failed");
+				"napi_schedule_prep failed");
 		}
 		serviced = IRQ_HANDLED;
 	}
diff --git a/drivers/net/smsc9420.c b/drivers/net/smsc9420.c
index c14a4c6452c7..79f4c228b030 100644
--- a/drivers/net/smsc9420.c
+++ b/drivers/net/smsc9420.c
@@ -666,7 +666,7 @@ static irqreturn_t smsc9420_isr(int irq, void *dev_id)
 			smsc9420_pci_flush_write(pd);
 
 			ints_to_clear |= (DMAC_STS_RX_ | DMAC_STS_NIS_);
-			netif_rx_schedule(&pd->napi);
+			napi_schedule(&pd->napi);
 		}
 
 		if (ints_to_clear)
@@ -889,7 +889,7 @@ static int smsc9420_rx_poll(struct napi_struct *napi, int budget)
 	smsc9420_pci_flush_write(pd);
 
 	if (work_done < budget) {
-		netif_rx_complete(&pd->napi);
+		napi_complete(&pd->napi);
 
 		/* re-enable RX DMA interrupts */
 		dma_intr_ena = smsc9420_reg_read(pd, DMAC_INTR_ENA);
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 88d2c67788df..7f6b4a4052ee 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -1301,7 +1301,7 @@ static int spider_net_poll(struct napi_struct *napi, int budget)
 	/* if all packets are in the stack, enable interrupts and return 0 */
 	/* if not, return 1 */
 	if (packets_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		spider_net_rx_irq_on(card);
 		card->ignore_rx_ramfull = 0;
 	}
@@ -1528,7 +1528,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg,
 			spider_net_refill_rx_chain(card);
 			spider_net_enable_rxdmac(card);
 			card->num_rx_ints ++;
-			netif_rx_schedule(&card->napi);
+			napi_schedule(&card->napi);
 		}
 		show_error = 0;
 		break;
@@ -1548,7 +1548,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg,
 		spider_net_refill_rx_chain(card);
 		spider_net_enable_rxdmac(card);
 		card->num_rx_ints ++;
-		netif_rx_schedule(&card->napi);
+		napi_schedule(&card->napi);
 		show_error = 0;
 		break;
 
@@ -1562,7 +1562,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg,
 		spider_net_refill_rx_chain(card);
 		spider_net_enable_rxdmac(card);
 		card->num_rx_ints ++;
-		netif_rx_schedule(&card->napi);
+		napi_schedule(&card->napi);
 		show_error = 0;
 		break;
 
@@ -1656,11 +1656,11 @@ spider_net_interrupt(int irq, void *ptr)
 
 	if (status_reg & SPIDER_NET_RXINT ) {
 		spider_net_rx_irq_off(card);
-		netif_rx_schedule(&card->napi);
+		napi_schedule(&card->napi);
 		card->num_rx_ints ++;
 	}
 	if (status_reg & SPIDER_NET_TXINT)
-		netif_rx_schedule(&card->napi);
+		napi_schedule(&card->napi);
 
 	if (status_reg & SPIDER_NET_LINKINT)
 		spider_net_link_reset(netdev);
diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index da3a76b18eff..98fe79515bab 100644
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -1342,8 +1342,8 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
 		if (intr_status & (IntrRxDone | IntrRxEmpty)) {
 			u32 enable;
 
-			if (likely(netif_rx_schedule_prep(&np->napi))) {
-				__netif_rx_schedule(&np->napi);
+			if (likely(napi_schedule_prep(&np->napi))) {
+				__napi_schedule(&np->napi);
 				enable = readl(ioaddr + IntrEnable);
 				enable &= ~(IntrRxDone | IntrRxEmpty);
 				writel(enable, ioaddr + IntrEnable);
@@ -1587,7 +1587,7 @@ static int netdev_poll(struct napi_struct *napi, int budget)
 		intr_status = readl(ioaddr + IntrStatus);
 	} while (intr_status & (IntrRxDone | IntrRxEmpty));
 
-	netif_rx_complete(napi);
+	napi_complete(napi);
 	intr_status = readl(ioaddr + IntrEnable);
 	intr_status |= IntrRxDone | IntrRxEmpty;
 	writel(intr_status, ioaddr + IntrEnable);
diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index 86c765d83de1..4942059109f3 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -921,7 +921,7 @@ static int gem_poll(struct napi_struct *napi, int budget)
 		gp->status = readl(gp->regs + GREG_STAT);
 	} while (gp->status & GREG_STAT_NAPI);
 
-	__netif_rx_complete(napi);
+	__napi_complete(napi);
 	gem_enable_ints(gp);
 
 	spin_unlock_irqrestore(&gp->lock, flags);
@@ -944,7 +944,7 @@ static irqreturn_t gem_interrupt(int irq, void *dev_id)
 
 	spin_lock_irqsave(&gp->lock, flags);
 
-	if (netif_rx_schedule_prep(&gp->napi)) {
+	if (napi_schedule_prep(&gp->napi)) {
 		u32 gem_status = readl(gp->regs + GREG_STAT);
 
 		if (gem_status == 0) {
@@ -954,7 +954,7 @@ static irqreturn_t gem_interrupt(int irq, void *dev_id)
 		}
 		gp->status = gem_status;
 		gem_disable_ints(gp);
-		__netif_rx_schedule(&gp->napi);
+		__napi_schedule(&gp->napi);
 	}
 
 	spin_unlock_irqrestore(&gp->lock, flags);
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index bcd0e60cbda9..f42c67e93bf4 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -1609,8 +1609,8 @@ static irqreturn_t tc35815_interrupt(int irq, void *dev_id)
 	if (!(dmactl & DMA_IntMask)) {
 		/* disable interrupts */
 		tc_writel(dmactl | DMA_IntMask, &tr->DMA_Ctl);
-		if (netif_rx_schedule_prep(&lp->napi))
-			__netif_rx_schedule(&lp->napi);
+		if (napi_schedule_prep(&lp->napi))
+			__napi_schedule(&lp->napi);
 		else {
 			printk(KERN_ERR "%s: interrupt taken in poll\n",
 			       dev->name);
@@ -1919,7 +1919,7 @@ static int tc35815_poll(struct napi_struct *napi, int budget)
 	spin_unlock(&lp->lock);
 
 	if (received < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		/* enable interrupts */
 		tc_writel(tc_readl(&tr->DMA_Ctl) & ~DMA_IntMask, &tr->DMA_Ctl);
 	}
diff --git a/drivers/net/tehuti.c b/drivers/net/tehuti.c
index a7a4dc4d6313..be9f38f8f0bf 100644
--- a/drivers/net/tehuti.c
+++ b/drivers/net/tehuti.c
@@ -265,8 +265,8 @@ static irqreturn_t bdx_isr_napi(int irq, void *dev)
 		bdx_isr_extra(priv, isr);
 
 	if (isr & (IR_RX_DESC_0 | IR_TX_FREE_0)) {
-		if (likely(netif_rx_schedule_prep(&priv->napi))) {
-			__netif_rx_schedule(&priv->napi);
+		if (likely(napi_schedule_prep(&priv->napi))) {
+			__napi_schedule(&priv->napi);
 			RET(IRQ_HANDLED);
 		} else {
 			/* NOTE: we get here if intr has slipped into window
@@ -302,7 +302,7 @@ static int bdx_poll(struct napi_struct *napi, int budget)
 		 * device lock and allow waiting tasks (eg rmmod) to advance) */
 		priv->napi_stop = 0;
 
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		bdx_enable_interrupts(priv);
 	}
 	return work_done;
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 8b3f84685387..5fa65acb68e5 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -4460,7 +4460,7 @@ static int tg3_poll(struct napi_struct *napi, int budget)
 			sblk->status &= ~SD_STATUS_UPDATED;
 
 		if (likely(!tg3_has_work(tp))) {
-			netif_rx_complete(napi);
+			napi_complete(napi);
 			tg3_restart_ints(tp);
 			break;
 		}
@@ -4470,7 +4470,7 @@ static int tg3_poll(struct napi_struct *napi, int budget)
 
 tx_recovery:
 	/* work_done is guaranteed to be less than budget. */
-	netif_rx_complete(napi);
+	napi_complete(napi);
 	schedule_work(&tp->reset_task);
 	return work_done;
 }
@@ -4519,7 +4519,7 @@ static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
 	prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
 
 	if (likely(!tg3_irq_sync(tp)))
-		netif_rx_schedule(&tp->napi);
+		napi_schedule(&tp->napi);
 
 	return IRQ_HANDLED;
 }
@@ -4544,7 +4544,7 @@ static irqreturn_t tg3_msi(int irq, void *dev_id)
 	 */
 	tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
 	if (likely(!tg3_irq_sync(tp)))
-		netif_rx_schedule(&tp->napi);
+		napi_schedule(&tp->napi);
 
 	return IRQ_RETVAL(1);
 }
@@ -4586,7 +4586,7 @@ static irqreturn_t tg3_interrupt(int irq, void *dev_id)
 	sblk->status &= ~SD_STATUS_UPDATED;
 	if (likely(tg3_has_work(tp))) {
 		prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
-		netif_rx_schedule(&tp->napi);
+		napi_schedule(&tp->napi);
 	} else {
 		/* No work, shared interrupt perhaps?  re-enable
 		 * interrupts, and flush that PCI write
@@ -4632,7 +4632,7 @@ static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
 	tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
 	if (tg3_irq_sync(tp))
 		goto out;
-	if (netif_rx_schedule_prep(&tp->napi)) {
+	if (napi_schedule_prep(&tp->napi)) {
 		prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
 		/* Update last_tag to mark that this status has been
 		 * seen. Because interrupt may be shared, we may be
@@ -4640,7 +4640,7 @@ static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
 		 * if tg3_poll() is not scheduled.
 		 */
 		tp->last_tag = sblk->status_tag;
-		__netif_rx_schedule(&tp->napi);
+		__napi_schedule(&tp->napi);
 	}
 out:
 	return IRQ_RETVAL(handled);
diff --git a/drivers/net/tsi108_eth.c b/drivers/net/tsi108_eth.c
index 75461dbd4876..1138782e5611 100644
--- a/drivers/net/tsi108_eth.c
+++ b/drivers/net/tsi108_eth.c
@@ -888,7 +888,7 @@ static int tsi108_poll(struct napi_struct *napi, int budget)
 
 	if (num_received < budget) {
 		data->rxpending = 0;
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		TSI_WRITE(TSI108_EC_INTMASK,
 				     TSI_READ(TSI108_EC_INTMASK)
@@ -915,11 +915,11 @@ static void tsi108_rx_int(struct net_device *dev)
 	 *
 	 * This can happen if this code races with tsi108_poll(), which masks
 	 * the interrupts after tsi108_irq_one() read the mask, but before
-	 * netif_rx_schedule is called.  It could also happen due to calls
+	 * napi_schedule is called.  It could also happen due to calls
 	 * from tsi108_check_rxring().
 	 */
 
-	if (netif_rx_schedule_prep(&data->napi)) {
+	if (napi_schedule_prep(&data->napi)) {
 		/* Mask, rather than ack, the receive interrupts.  The ack
 		 * will happen in tsi108_poll().
 		 */
@@ -930,7 +930,7 @@ static void tsi108_rx_int(struct net_device *dev)
 				     | TSI108_INT_RXTHRESH |
 				     TSI108_INT_RXOVERRUN | TSI108_INT_RXERROR |
 				     TSI108_INT_RXWAIT);
-		__netif_rx_schedule(&data->napi);
+		__napi_schedule(&data->napi);
 	} else {
 		if (!netif_running(dev)) {
 			/* This can happen if an interrupt occurs while the
diff --git a/drivers/net/tulip/interrupt.c b/drivers/net/tulip/interrupt.c
index 6c3428a37c0b..9f946d421088 100644
--- a/drivers/net/tulip/interrupt.c
+++ b/drivers/net/tulip/interrupt.c
@@ -103,7 +103,7 @@ void oom_timer(unsigned long data)
 {
         struct net_device *dev = (struct net_device *)data;
 	struct tulip_private *tp = netdev_priv(dev);
-	netif_rx_schedule(&tp->napi);
+	napi_schedule(&tp->napi);
 }
 
 int tulip_poll(struct napi_struct *napi, int budget)
@@ -300,7 +300,7 @@ int tulip_poll(struct napi_struct *napi, int budget)
 
          /* Remove us from polling list and enable RX intr. */
 
-         netif_rx_complete(napi);
+         napi_complete(napi);
          iowrite32(tulip_tbl[tp->chip_id].valid_intrs, tp->base_addr+CSR7);
 
          /* The last op happens after poll completion. Which means the following:
@@ -333,10 +333,10 @@ int tulip_poll(struct napi_struct *napi, int budget)
 
          /* Think: timer_pending() was an explicit signature of bug.
           * Timer can be pending now but fired and completed
-          * before we did netif_rx_complete(). See? We would lose it. */
+          * before we did napi_complete(). See? We would lose it. */
 
          /* remove ourselves from the polling list */
-         netif_rx_complete(napi);
+         napi_complete(napi);
 
          return work_done;
 }
@@ -519,7 +519,7 @@ irqreturn_t tulip_interrupt(int irq, void *dev_instance)
 			rxd++;
 			/* Mask RX intrs and add the device to poll list. */
 			iowrite32(tulip_tbl[tp->chip_id].valid_intrs&~RxPollInt, ioaddr + CSR7);
-			netif_rx_schedule(&tp->napi);
+			napi_schedule(&tp->napi);
 
 			if (!(csr5&~(AbnormalIntr|NormalIntr|RxPollInt|TPLnkPass)))
                                break;
diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c
index 3af9a9516ccb..dcff5ade6d08 100644
--- a/drivers/net/typhoon.c
+++ b/drivers/net/typhoon.c
@@ -1783,7 +1783,7 @@ typhoon_poll(struct napi_struct *napi, int budget)
 	}
 
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		iowrite32(TYPHOON_INTR_NONE,
 				tp->ioaddr + TYPHOON_REG_INTR_MASK);
 		typhoon_post_pci_writes(tp->ioaddr);
@@ -1806,10 +1806,10 @@ typhoon_interrupt(int irq, void *dev_instance)
 
 	iowrite32(intr_status, ioaddr + TYPHOON_REG_INTR_STATUS);
 
-	if (netif_rx_schedule_prep(&tp->napi)) {
+	if (napi_schedule_prep(&tp->napi)) {
 		iowrite32(TYPHOON_INTR_ALL, ioaddr + TYPHOON_REG_INTR_MASK);
 		typhoon_post_pci_writes(ioaddr);
-		__netif_rx_schedule(&tp->napi);
+		__napi_schedule(&tp->napi);
 	} else {
 		printk(KERN_ERR "%s: Error, poll already scheduled\n",
                        dev->name);
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 11441225bf41..6def6f826a54 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3251,7 +3251,7 @@ static int ucc_geth_poll(struct napi_struct *napi, int budget)
 		howmany += ucc_geth_rx(ugeth, i, budget - howmany);
 
 	if (howmany < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS);
 	}
 
@@ -3282,10 +3282,10 @@ static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
 
 	/* check for receive events that require processing */
 	if (ucce & UCCE_RX_EVENTS) {
-		if (netif_rx_schedule_prep(&ugeth->napi)) {
+		if (napi_schedule_prep(&ugeth->napi)) {
 			uccm &= ~UCCE_RX_EVENTS;
 			out_be32(uccf->p_uccm, uccm);
-			__netif_rx_schedule(&ugeth->napi);
+			__napi_schedule(&ugeth->napi);
 		}
 	}
 
diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index 3b8e63254277..4671436ecf0e 100644
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -589,7 +589,7 @@ static int rhine_napipoll(struct napi_struct *napi, int budget)
 	work_done = rhine_rx(dev, budget);
 
 	if (work_done < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		iowrite16(IntrRxDone | IntrRxErr | IntrRxEmpty| IntrRxOverflow |
 			  IntrRxDropped | IntrRxNoBuf | IntrTxAborted |
@@ -1319,7 +1319,7 @@ static irqreturn_t rhine_interrupt(int irq, void *dev_instance)
 				  IntrPCIErr | IntrStatsMax | IntrLinkChange,
 				  ioaddr + IntrEnable);
 
-			netif_rx_schedule(&rp->napi);
+			napi_schedule(&rp->napi);
 		}
 
 		if (intr_status & (IntrTxErrSummary | IntrTxDone)) {
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 43f6523c40be..30ae6d9a12af 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -374,9 +374,9 @@ static void skb_recv_done(struct virtqueue *rvq)
 {
 	struct virtnet_info *vi = rvq->vdev->priv;
 	/* Schedule NAPI, Suppress further interrupts if successful. */
-	if (netif_rx_schedule_prep(&vi->napi)) {
+	if (napi_schedule_prep(&vi->napi)) {
 		rvq->vq_ops->disable_cb(rvq);
-		__netif_rx_schedule(&vi->napi);
+		__napi_schedule(&vi->napi);
 	}
 }
 
@@ -402,11 +402,11 @@ again:
 
 	/* Out of packets? */
 	if (received < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (unlikely(!vi->rvq->vq_ops->enable_cb(vi->rvq))
 		    && napi_schedule_prep(napi)) {
 			vi->rvq->vq_ops->disable_cb(vi->rvq);
-			__netif_rx_schedule(napi);
+			__napi_schedule(napi);
 			goto again;
 		}
 	}
@@ -580,9 +580,9 @@ static int virtnet_open(struct net_device *dev)
 	 * won't get another interrupt, so process any outstanding packets
 	 * now.  virtnet_poll wants re-enable the queue, so we disable here.
 	 * We synchronize against interrupts via NAPI_STATE_SCHED */
-	if (netif_rx_schedule_prep(&vi->napi)) {
+	if (napi_schedule_prep(&vi->napi)) {
 		vi->rvq->vq_ops->disable_cb(vi->rvq);
-		__netif_rx_schedule(&vi->napi);
+		__napi_schedule(&vi->napi);
 	}
 	return 0;
 }
diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c
index 08b3536944fe..497b003d7239 100644
--- a/drivers/net/wan/hd64572.c
+++ b/drivers/net/wan/hd64572.c
@@ -341,7 +341,7 @@ static int sca_poll(struct napi_struct *napi, int budget)
 		received = sca_rx_done(port, budget);
 
 	if (received < budget) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		enable_intr(port);
 	}
 
@@ -359,7 +359,7 @@ static irqreturn_t sca_intr(int irq, void *dev_id)
 		if (port && (isr0 & (i ? 0x08002200 : 0x00080022))) {
 			handled = 1;
 			disable_intr(port);
-			netif_rx_schedule(&port->napi);
+			napi_schedule(&port->napi);
 		}
 	}
 
diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c
index 7e8bbba2cc1b..3bf7d3f447db 100644
--- a/drivers/net/wan/ixp4xx_hss.c
+++ b/drivers/net/wan/ixp4xx_hss.c
@@ -622,7 +622,7 @@ static void hss_hdlc_rx_irq(void *pdev)
 	printk(KERN_DEBUG "%s: hss_hdlc_rx_irq\n", dev->name);
 #endif
 	qmgr_disable_irq(queue_ids[port->id].rx);
-	netif_rx_schedule(&port->napi);
+	napi_schedule(&port->napi);
 }
 
 static int hss_hdlc_poll(struct napi_struct *napi, int budget)
@@ -649,15 +649,15 @@ static int hss_hdlc_poll(struct napi_struct *napi, int budget)
 		if ((n = queue_get_desc(rxq, port, 0)) < 0) {
 #if DEBUG_RX
 			printk(KERN_DEBUG "%s: hss_hdlc_poll"
-			       " netif_rx_complete\n", dev->name);
+			       " napi_complete\n", dev->name);
 #endif
-			netif_rx_complete(napi);
+			napi_complete(napi);
 			qmgr_enable_irq(rxq);
 			if (!qmgr_stat_empty(rxq) &&
-			    netif_rx_reschedule(napi)) {
+			    napi_reschedule(napi)) {
 #if DEBUG_RX
 				printk(KERN_DEBUG "%s: hss_hdlc_poll"
-				       " netif_rx_reschedule succeeded\n",
+				       " napi_reschedule succeeded\n",
 				       dev->name);
 #endif
 				qmgr_disable_irq(rxq);
@@ -1069,7 +1069,7 @@ static int hss_hdlc_open(struct net_device *dev)
 	hss_start_hdlc(port);
 
 	/* we may already have RX data, enables IRQ */
-	netif_rx_schedule(&port->napi);
+	napi_schedule(&port->napi);
 	return 0;
 
 err_unlock:
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index cd6184ee08ee..9f102a6535c4 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -196,7 +196,7 @@ static void rx_refill_timeout(unsigned long data)
 {
 	struct net_device *dev = (struct net_device *)data;
 	struct netfront_info *np = netdev_priv(dev);
-	netif_rx_schedule(&np->napi);
+	napi_schedule(&np->napi);
 }
 
 static int netfront_tx_slot_available(struct netfront_info *np)
@@ -328,7 +328,7 @@ static int xennet_open(struct net_device *dev)
 		xennet_alloc_rx_buffers(dev);
 		np->rx.sring->rsp_event = np->rx.rsp_cons + 1;
 		if (RING_HAS_UNCONSUMED_RESPONSES(&np->rx))
-			netif_rx_schedule(&np->napi);
+			napi_schedule(&np->napi);
 	}
 	spin_unlock_bh(&np->rx_lock);
 
@@ -979,7 +979,7 @@ err:
 
 		RING_FINAL_CHECK_FOR_RESPONSES(&np->rx, more_to_do);
 		if (!more_to_do)
-			__netif_rx_complete(napi);
+			__napi_complete(napi);
 
 		local_irq_restore(flags);
 	}
@@ -1317,7 +1317,7 @@ static irqreturn_t xennet_interrupt(int irq, void *dev_id)
 		xennet_tx_buf_gc(dev);
 		/* Under tx_lock: protects access to rx shared-ring indexes. */
 		if (RING_HAS_UNCONSUMED_RESPONSES(&np->rx))
-			netif_rx_schedule(&np->napi);
+			napi_schedule(&np->napi);
 	}
 
 	spin_unlock_irqrestore(&np->tx_lock, flags);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ec54785d34f9..dd8a35b3e8b2 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1574,56 +1574,6 @@ static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits)
 	return (1 << debug_value) - 1;
 }
 
-/* Test if receive needs to be scheduled but only if up */
-static inline int netif_rx_schedule_prep(struct napi_struct *napi)
-{
-	return napi_schedule_prep(napi);
-}
-
-/* Add interface to tail of rx poll list. This assumes that _prep has
- * already been called and returned 1.
- */
-static inline void __netif_rx_schedule(struct napi_struct *napi)
-{
-	__napi_schedule(napi);
-}
-
-/* Try to reschedule poll. Called by irq handler. */
-
-static inline void netif_rx_schedule(struct napi_struct *napi)
-{
-	if (netif_rx_schedule_prep(napi))
-		__netif_rx_schedule(napi);
-}
-
-/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete().  */
-static inline int netif_rx_reschedule(struct napi_struct *napi)
-{
-	if (napi_schedule_prep(napi)) {
-		__netif_rx_schedule(napi);
-		return 1;
-	}
-	return 0;
-}
-
-/* same as netif_rx_complete, except that local_irq_save(flags)
- * has already been issued
- */
-static inline void __netif_rx_complete(struct napi_struct *napi)
-{
-	__napi_complete(napi);
-}
-
-/* Remove interface from poll list: it must be in the poll list
- * on current cpu. This primitive is called by dev->poll(), when
- * it completes the work. The device cannot be out of poll list at this
- * moment, it is BUG().
- */
-static inline void netif_rx_complete(struct napi_struct *napi)
-{
-	napi_complete(napi);
-}
-
 static inline void __netif_tx_lock(struct netdev_queue *txq, int cpu)
 {
 	spin_lock(&txq->_xmit_lock);
-- 
cgit v1.2.3


From f90f92eed74251034f251e3cdf4fa5c4c1f09df0 Mon Sep 17 00:00:00 2001
From: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Date: Fri, 16 Jan 2009 23:36:30 +0000
Subject: dccp: Initialisation framework for feature negotiation

This initialises feature negotiation from two tables, which are in
turn are initialised from sysctls.

As a novel feature, specifics of the implementation (e.g. that short
seqnos and ECN are not yet available) are advertised for robustness.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/dccp.h | 19 ---------------
 net/dccp/feat.c      | 65 ++++++++++++++++++++++++++++++++++++++++++++--------
 net/dccp/feat.h      |  2 +-
 3 files changed, 57 insertions(+), 29 deletions(-)

(limited to 'include')

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 61734e27abb7..990e97fa1f07 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -369,28 +369,9 @@ static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
   * Will be used to pass the state from dccp_request_sock to dccp_sock.
   *
   * @dccpms_sequence_window - Sequence Window Feature (section 7.5.2)
-  * @dccpms_pending - List of features being negotiated
-  * @dccpms_conf -
   */
 struct dccp_minisock {
 	__u64			dccpms_sequence_window;
-	struct list_head	dccpms_pending;
-	struct list_head	dccpms_conf;
-};
-
-struct dccp_opt_conf {
-	__u8			*dccpoc_val;
-	__u8			dccpoc_len;
-};
-
-struct dccp_opt_pend {
-	struct list_head	dccpop_node;
-	__u8			dccpop_type;
-	__u8			dccpop_feat;
-	__u8		        *dccpop_val;
-	__u8			dccpop_len;
-	int			dccpop_conf;
-	struct dccp_opt_conf    *dccpop_sc;
 };
 
 extern void dccp_minisock_init(struct dccp_minisock *dmsk);
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index 4152308958ab..67ffac9905f8 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -1115,23 +1115,70 @@ int dccp_feat_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
 	return 0;	/* ignore FN options in all other states */
 }
 
+/**
+ * dccp_feat_init  -  Seed feature negotiation with host-specific defaults
+ * This initialises global defaults, depending on the value of the sysctls.
+ * These can later be overridden by registering changes via setsockopt calls.
+ * The last link in the chain is finalise_settings, to make sure that between
+ * here and the start of actual feature negotiation no inconsistencies enter.
+ *
+ * All features not appearing below use either defaults or are otherwise
+ * later adjusted through dccp_feat_finalise_settings().
+ */
 int dccp_feat_init(struct sock *sk)
 {
-	struct dccp_sock *dp = dccp_sk(sk);
-	struct dccp_minisock *dmsk = dccp_msk(sk);
+	struct list_head *fn = &dccp_sk(sk)->dccps_featneg;
+	u8 on = 1, off = 0;
 	int rc;
+	struct {
+		u8 *val;
+		u8 len;
+	} tx, rx;
+
+	/* Non-negotiable (NN) features */
+	rc = __feat_register_nn(fn, DCCPF_SEQUENCE_WINDOW, 0,
+				    sysctl_dccp_feat_sequence_window);
+	if (rc)
+		return rc;
+
+	/* Server-priority (SP) features */
+
+	/* Advertise that short seqnos are not supported (7.6.1) */
+	rc = __feat_register_sp(fn, DCCPF_SHORT_SEQNOS, true, true, &off, 1);
+	if (rc)
+		return rc;
 
-	INIT_LIST_HEAD(&dmsk->dccpms_pending);	/* XXX no longer used */
-	INIT_LIST_HEAD(&dmsk->dccpms_conf);	/* XXX no longer used */
+	/* RFC 4340 12.1: "If a DCCP is not ECN capable, ..." */
+	rc = __feat_register_sp(fn, DCCPF_ECN_INCAPABLE, true, true, &on, 1);
+	if (rc)
+		return rc;
+
+	/*
+	 * We advertise the available list of CCIDs and reorder according to
+	 * preferences, to avoid failure resulting from negotiating different
+	 * singleton values (which always leads to failure).
+	 * These settings can still (later) be overridden via sockopts.
+	 */
+	if (ccid_get_builtin_ccids(&tx.val, &tx.len) ||
+	    ccid_get_builtin_ccids(&rx.val, &rx.len))
+		return -ENOBUFS;
 
-	/* Ack ratio */
-	rc = __feat_register_nn(&dp->dccps_featneg, DCCPF_ACK_RATIO, 0,
-				dp->dccps_l_ack_ratio);
+	if (!dccp_feat_prefer(sysctl_dccp_feat_tx_ccid, tx.val, tx.len) ||
+	    !dccp_feat_prefer(sysctl_dccp_feat_rx_ccid, rx.val, rx.len))
+		goto free_ccid_lists;
+
+	rc = __feat_register_sp(fn, DCCPF_CCID, true, false, tx.val, tx.len);
+	if (rc)
+		goto free_ccid_lists;
+
+	rc = __feat_register_sp(fn, DCCPF_CCID, false, false, rx.val, rx.len);
+
+free_ccid_lists:
+	kfree(tx.val);
+	kfree(rx.val);
 	return rc;
 }
 
-EXPORT_SYMBOL_GPL(dccp_feat_init);
-
 int dccp_feat_activate_values(struct sock *sk, struct list_head *fn_list)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
diff --git a/net/dccp/feat.h b/net/dccp/feat.h
index 9b46e2a7866e..5e7b8481cd04 100644
--- a/net/dccp/feat.h
+++ b/net/dccp/feat.h
@@ -113,13 +113,13 @@ static inline void dccp_feat_debug(const u8 type, const u8 feat, const u8 val)
 #define dccp_feat_debug(type, feat, val)
 #endif /* CONFIG_IP_DCCP_DEBUG */
 
+extern int  dccp_feat_init(struct sock *sk);
 extern int  dccp_feat_register_sp(struct sock *sk, u8 feat, u8 is_local,
 				  u8 const *list, u8 len);
 extern int  dccp_feat_register_nn(struct sock *sk, u8 feat, u64 val);
 extern int  dccp_feat_parse_options(struct sock *, struct dccp_request_sock *,
 				    u8 mand, u8 opt, u8 feat, u8 *val, u8 len);
 extern int  dccp_feat_clone_list(struct list_head const *, struct list_head *);
-extern int  dccp_feat_init(struct sock *sk);
 
 /*
  * Encoding variable-length options and their maximum length.
-- 
cgit v1.2.3


From 792b48780e8b6435d017cef4b5c304876a48653e Mon Sep 17 00:00:00 2001
From: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Date: Fri, 16 Jan 2009 23:36:31 +0000
Subject: dccp: Implement both feature-local and feature-remote Sequence Window
 feature

This adds full support for local/remote Sequence Window feature, from which the
  * sequence-number-validity (W) and
  * acknowledgment-number-validity (W') windows
derive as specified in RFC 4340, 7.5.3.

Specifically, the following is contained in this patch:
  * integrated new socket fields into dccp_sk;
  * updated the update_gsr/gss routines with regard to these fields;
  * updated handler code: the Sequence Window feature is located at the TX side,
    so the local feature is meant if the handler-rx flag is false;
  * the initialisation of `rcv_wnd' in reqsk is removed, since
    - rcv_wnd is not used by the code anywhere;
    - sequence number checks are not done in the LISTEN state (cf. 7.5.3);
    - dccp_check_req checks the Ack number validity more rigorously;
  * the `struct dccp_minisock' became empty and is now removed.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/dccp.txt |  3 ++-
 include/linux/dccp.h              | 24 ++++--------------------
 net/dccp/dccp.h                   | 16 +++++++---------
 net/dccp/feat.c                   | 13 +++++++++++--
 net/dccp/minisocks.c              | 11 -----------
 net/dccp/proto.c                  |  2 --
 6 files changed, 24 insertions(+), 45 deletions(-)

(limited to 'include')

diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index 7a3bb1abb830..b132e4a3cf0f 100644
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -141,7 +141,8 @@ rx_ccid = 2
 	Default CCID for the receiver-sender half-connection; see tx_ccid.
 
 seq_window = 100
-	The initial sequence window (sec. 7.5.2).
+	The initial sequence window (sec. 7.5.2) of the sender. This influences
+	the local ackno validity and the remote seqno validity windows (7.5.1).
 
 tx_qlen = 5
 	The size of the transmit buffer in packets. A value of 0 corresponds
diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 990e97fa1f07..7a0502ab383a 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -363,19 +363,6 @@ static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
 /* FIXME: for now we're default to 1 but it should really be 0 */
 #define DCCPF_INITIAL_SEND_NDP_COUNT		1
 
-/**
-  * struct dccp_minisock - Minimal DCCP connection representation
-  *
-  * Will be used to pass the state from dccp_request_sock to dccp_sock.
-  *
-  * @dccpms_sequence_window - Sequence Window Feature (section 7.5.2)
-  */
-struct dccp_minisock {
-	__u64			dccpms_sequence_window;
-};
-
-extern void dccp_minisock_init(struct dccp_minisock *dmsk);
-
 /**
  * struct dccp_request_sock  -  represent DCCP-specific connection request
  * @dreq_inet_rsk: structure inherited from
@@ -464,13 +451,14 @@ struct dccp_ackvec;
  * @dccps_timestamp_time - time of receiving latest @dccps_timestamp_echo
  * @dccps_l_ack_ratio - feature-local Ack Ratio
  * @dccps_r_ack_ratio - feature-remote Ack Ratio
+ * @dccps_l_seq_win - local Sequence Window (influences ack number validity)
+ * @dccps_r_seq_win - remote Sequence Window (influences seq number validity)
  * @dccps_pcslen - sender   partial checksum coverage (via sockopt)
  * @dccps_pcrlen - receiver partial checksum coverage (via sockopt)
  * @dccps_send_ndp_count - local Send NDP Count feature (7.7.2)
  * @dccps_ndp_count - number of Non Data Packets since last data packet
  * @dccps_mss_cache - current value of MSS (path MTU minus header sizes)
  * @dccps_rate_last - timestamp for rate-limiting DCCP-Sync (RFC 4340, 7.5.4)
- * @dccps_minisock - associated minisock (accessed via dccp_msk)
  * @dccps_featneg - tracks feature-negotiation state (mostly during handshake)
  * @dccps_hc_rx_ackvec - rx half connection ack vector
  * @dccps_hc_rx_ccid - CCID used for the receiver (or receiving half-connection)
@@ -504,12 +492,13 @@ struct dccp_sock {
 	__u32				dccps_timestamp_time;
 	__u16				dccps_l_ack_ratio;
 	__u16				dccps_r_ack_ratio;
+	__u64				dccps_l_seq_win:48;
+	__u64				dccps_r_seq_win:48;
 	__u8				dccps_pcslen:4;
 	__u8				dccps_pcrlen:4;
 	__u8				dccps_send_ndp_count:1;
 	__u64				dccps_ndp_count:48;
 	unsigned long			dccps_rate_last;
-	struct dccp_minisock		dccps_minisock;
 	struct list_head		dccps_featneg;
 	struct dccp_ackvec		*dccps_hc_rx_ackvec;
 	struct ccid			*dccps_hc_rx_ccid;
@@ -527,11 +516,6 @@ static inline struct dccp_sock *dccp_sk(const struct sock *sk)
 	return (struct dccp_sock *)sk;
 }
 
-static inline struct dccp_minisock *dccp_msk(const struct sock *sk)
-{
-	return (struct dccp_minisock *)&dccp_sk(sk)->dccps_minisock;
-}
-
 static inline const char *dccp_role(const struct sock *sk)
 {
 	switch (dccp_sk(sk)->dccps_role) {
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index f2230fc168e1..04ae91898a68 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -409,23 +409,21 @@ static inline void dccp_hdr_set_ack(struct dccp_hdr_ack_bits *dhack,
 static inline void dccp_update_gsr(struct sock *sk, u64 seq)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
-	const struct dccp_minisock *dmsk = dccp_msk(sk);
 
 	dp->dccps_gsr = seq;
-	dccp_set_seqno(&dp->dccps_swl,
-		       dp->dccps_gsr + 1 - (dmsk->dccpms_sequence_window / 4));
-	dccp_set_seqno(&dp->dccps_swh,
-		       dp->dccps_gsr + (3 * dmsk->dccpms_sequence_window) / 4);
+	/* Sequence validity window depends on remote Sequence Window (7.5.1) */
+	dp->dccps_swl = SUB48(ADD48(dp->dccps_gsr, 1), dp->dccps_r_seq_win / 4);
+	dp->dccps_swh = ADD48(dp->dccps_gsr, (3 * dp->dccps_r_seq_win) / 4);
 }
 
 static inline void dccp_update_gss(struct sock *sk, u64 seq)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
 
-	dp->dccps_awh = dp->dccps_gss = seq;
-	dccp_set_seqno(&dp->dccps_awl,
-		       (dp->dccps_gss -
-			dccp_msk(sk)->dccpms_sequence_window + 1));
+	dp->dccps_gss = seq;
+	/* Ack validity window depends on local Sequence Window value (7.5.1) */
+	dp->dccps_awl = SUB48(ADD48(dp->dccps_gss, 1), dp->dccps_l_seq_win);
+	dp->dccps_awh = dp->dccps_gss;
 }
 
 static inline int dccp_ack_pending(const struct sock *sk)
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index 67ffac9905f8..7303f79705d2 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -51,8 +51,17 @@ static int dccp_hdlr_ccid(struct sock *sk, u64 ccid, bool rx)
 
 static int dccp_hdlr_seq_win(struct sock *sk, u64 seq_win, bool rx)
 {
-	if (!rx)
-		dccp_msk(sk)->dccpms_sequence_window = seq_win;
+	struct dccp_sock *dp = dccp_sk(sk);
+
+	if (rx) {
+		dp->dccps_r_seq_win = seq_win;
+		/* propagate changes to update SWL/SWH */
+		dccp_update_gsr(sk, dp->dccps_gsr);
+	} else {
+		dp->dccps_l_seq_win = seq_win;
+		/* propagate changes to update AWL */
+		dccp_update_gss(sk, dp->dccps_gss);
+	}
 	return 0;
 }
 
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 6821ae33dd37..5ca49cec95f5 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -42,11 +42,6 @@ struct inet_timewait_death_row dccp_death_row = {
 
 EXPORT_SYMBOL_GPL(dccp_death_row);
 
-void dccp_minisock_init(struct dccp_minisock *dmsk)
-{
-	dmsk->dccpms_sequence_window = sysctl_dccp_feat_sequence_window;
-}
-
 void dccp_time_wait(struct sock *sk, int state, int timeo)
 {
 	struct inet_timewait_sock *tw = NULL;
@@ -110,7 +105,6 @@ struct sock *dccp_create_openreq_child(struct sock *sk,
 		struct dccp_request_sock *dreq = dccp_rsk(req);
 		struct inet_connection_sock *newicsk = inet_csk(newsk);
 		struct dccp_sock *newdp = dccp_sk(newsk);
-		struct dccp_minisock *newdmsk = dccp_msk(newsk);
 
 		newdp->dccps_role	    = DCCP_ROLE_SERVER;
 		newdp->dccps_hc_rx_ackvec   = NULL;
@@ -128,10 +122,6 @@ struct sock *dccp_create_openreq_child(struct sock *sk,
 		 *    Initialize S.GAR := S.ISS
 		 *    Set S.ISR, S.GSR, S.SWL, S.SWH from packet or Init Cookies
 		 */
-
-		/* See dccp_v4_conn_request */
-		newdmsk->dccpms_sequence_window = req->rcv_wnd;
-
 		newdp->dccps_gar = newdp->dccps_iss = dreq->dreq_iss;
 		dccp_update_gss(newsk, dreq->dreq_iss);
 
@@ -290,7 +280,6 @@ int dccp_reqsk_init(struct request_sock *req,
 	inet_rsk(req)->rmt_port	  = dccp_hdr(skb)->dccph_sport;
 	inet_rsk(req)->loc_port	  = dccp_hdr(skb)->dccph_dport;
 	inet_rsk(req)->acked	  = 0;
-	req->rcv_wnd		  = sysctl_dccp_feat_sequence_window;
 	dreq->dreq_timestamp_echo = 0;
 
 	/* inherit feature negotiation options from listening socket */
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 945b4d5d23b3..314a1b5c033c 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -174,8 +174,6 @@ int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
 	struct dccp_sock *dp = dccp_sk(sk);
 	struct inet_connection_sock *icsk = inet_csk(sk);
 
-	dccp_minisock_init(&dp->dccps_minisock);
-
 	icsk->icsk_rto		= DCCP_TIMEOUT_INIT;
 	icsk->icsk_syn_retries	= sysctl_dccp_request_retries;
 	sk->sk_state		= DCCP_CLOSED;
-- 
cgit v1.2.3


From 883ca833e5fb814fb03426c9d35e5489ce43e8da Mon Sep 17 00:00:00 2001
From: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Date: Fri, 16 Jan 2009 23:36:32 +0000
Subject: dccp: Initialisation and type-checking of feature sysctls

This patch takes care of initialising and type-checking sysctls
related to feature negotiation. Type checking is important since some
of the sysctls now directly impact the feature-negotiation process.

The sysctls are initialised with the known default values for each
feature.  For the type-checking the value constraints from RFC 4340
are used:

 * Sequence Window uses the specified Wmin=32, the maximum is ulong (4 bytes),
   tested and confirmed that it works up to 4294967295 - for Gbps speed;
 * Ack Ratio is between 0 .. 0xffff (2-byte unsigned integer);
 * CCIDs are between 0 .. 255;
 * request_retries, retries1, retries2 also between 0..255 for good measure;
 * tx_qlen is checked to be non-negative;
 * sync_ratelimit remains as before.

Notes:
------
 1. Die s@sysctl_dccp_feat@sysctl_dccp@g since the sysctls are now in feat.c.
 2. As pointed out by Arnaldo, the pattern of type-checking repeats itself in
    other places, sometimes with exactly the same kind of definitions (e.g.
    "static int zero;"). It may be a good idea (kernel janitors?) to consolidate
    type checking. For the sake of keeping the changeset small and in order not
    to affect other subsystems, I have not strived to generalise here.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/dccp.h |  8 --------
 net/dccp/dccp.h      |  3 ---
 net/dccp/feat.c      | 11 ++++++++---
 net/dccp/feat.h      |  8 ++++++++
 net/dccp/options.c   |  4 ----
 net/dccp/sysctl.c    | 43 ++++++++++++++++++++++++++++++-------------
 6 files changed, 46 insertions(+), 31 deletions(-)

(limited to 'include')

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 7a0502ab383a..7434a8353e23 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -355,14 +355,6 @@ static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
 	return __dccp_hdr_len(dccp_hdr(skb));
 }
 
-
-/* initial values for each feature */
-#define DCCPF_INITIAL_SEQUENCE_WINDOW		100
-#define DCCPF_INITIAL_ACK_RATIO			2
-#define DCCPF_INITIAL_CCID			DCCPC_CCID2
-/* FIXME: for now we're default to 1 but it should really be 0 */
-#define DCCPF_INITIAL_SEND_NDP_COUNT		1
-
 /**
  * struct dccp_request_sock  -  represent DCCP-specific connection request
  * @dreq_inet_rsk: structure inherited from
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 04ae91898a68..44a5bc6f6785 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -95,9 +95,6 @@ extern void dccp_time_wait(struct sock *sk, int state, int timeo);
 extern int  sysctl_dccp_request_retries;
 extern int  sysctl_dccp_retries1;
 extern int  sysctl_dccp_retries2;
-extern int  sysctl_dccp_feat_sequence_window;
-extern int  sysctl_dccp_feat_rx_ccid;
-extern int  sysctl_dccp_feat_tx_ccid;
 extern int  sysctl_dccp_tx_qlen;
 extern int  sysctl_dccp_sync_ratelimit;
 
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index 7303f79705d2..12006e9b2472 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -25,6 +25,11 @@
 #include "ccid.h"
 #include "feat.h"
 
+/* feature-specific sysctls - initialised to the defaults from RFC 4340, 6.4 */
+unsigned long	sysctl_dccp_sequence_window __read_mostly = 100;
+int		sysctl_dccp_rx_ccid	    __read_mostly = 2,
+		sysctl_dccp_tx_ccid	    __read_mostly = 2;
+
 /*
  * Feature activation handlers.
  *
@@ -1146,7 +1151,7 @@ int dccp_feat_init(struct sock *sk)
 
 	/* Non-negotiable (NN) features */
 	rc = __feat_register_nn(fn, DCCPF_SEQUENCE_WINDOW, 0,
-				    sysctl_dccp_feat_sequence_window);
+				    sysctl_dccp_sequence_window);
 	if (rc)
 		return rc;
 
@@ -1172,8 +1177,8 @@ int dccp_feat_init(struct sock *sk)
 	    ccid_get_builtin_ccids(&rx.val, &rx.len))
 		return -ENOBUFS;
 
-	if (!dccp_feat_prefer(sysctl_dccp_feat_tx_ccid, tx.val, tx.len) ||
-	    !dccp_feat_prefer(sysctl_dccp_feat_rx_ccid, rx.val, rx.len))
+	if (!dccp_feat_prefer(sysctl_dccp_tx_ccid, tx.val, tx.len) ||
+	    !dccp_feat_prefer(sysctl_dccp_rx_ccid, rx.val, rx.len))
 		goto free_ccid_lists;
 
 	rc = __feat_register_sp(fn, DCCPF_CCID, true, false, tx.val, tx.len);
diff --git a/net/dccp/feat.h b/net/dccp/feat.h
index 5e7b8481cd04..40aa7a10bd5f 100644
--- a/net/dccp/feat.h
+++ b/net/dccp/feat.h
@@ -100,6 +100,13 @@ struct ccid_dependency {
 	u8	val;
 };
 
+/*
+ * Sysctls to seed defaults for feature negotiation
+ */
+extern unsigned long sysctl_dccp_sequence_window;
+extern int	     sysctl_dccp_rx_ccid;
+extern int	     sysctl_dccp_tx_ccid;
+
 #ifdef CONFIG_IP_DCCP_DEBUG
 extern const char *dccp_feat_typename(const u8 type);
 extern const char *dccp_feat_name(const u8 feat);
@@ -114,6 +121,7 @@ static inline void dccp_feat_debug(const u8 type, const u8 feat, const u8 val)
 #endif /* CONFIG_IP_DCCP_DEBUG */
 
 extern int  dccp_feat_init(struct sock *sk);
+extern void dccp_feat_initialise_sysctls(void);
 extern int  dccp_feat_register_sp(struct sock *sk, u8 feat, u8 is_local,
 				  u8 const *list, u8 len);
 extern int  dccp_feat_register_nn(struct sock *sk, u8 feat, u64 val);
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 7b1165c21f51..3e2726c7182d 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -23,10 +23,6 @@
 #include "dccp.h"
 #include "feat.h"
 
-int sysctl_dccp_feat_sequence_window = DCCPF_INITIAL_SEQUENCE_WINDOW;
-int sysctl_dccp_feat_rx_ccid	      = DCCPF_INITIAL_CCID;
-int sysctl_dccp_feat_tx_ccid	      = DCCPF_INITIAL_CCID;
-
 u64 dccp_decode_value_var(const u8 *bf, const u8 len)
 {
 	u64 value = 0;
diff --git a/net/dccp/sysctl.c b/net/dccp/sysctl.c
index 018e210875e1..a5a1856234e7 100644
--- a/net/dccp/sysctl.c
+++ b/net/dccp/sysctl.c
@@ -18,55 +18,72 @@
 #error This file should not be compiled without CONFIG_SYSCTL defined
 #endif
 
+/* Boundary values */
+static int		zero     = 0,
+			u8_max   = 0xFF;
+static unsigned long	seqw_min = 32;
+
 static struct ctl_table dccp_default_table[] = {
 	{
 		.procname	= "seq_window",
-		.data		= &sysctl_dccp_feat_sequence_window,
-		.maxlen		= sizeof(sysctl_dccp_feat_sequence_window),
+		.data		= &sysctl_dccp_sequence_window,
+		.maxlen		= sizeof(sysctl_dccp_sequence_window),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_doulongvec_minmax,
+		.extra1		= &seqw_min,		/* RFC 4340, 7.5.2 */
 	},
 	{
 		.procname	= "rx_ccid",
-		.data		= &sysctl_dccp_feat_rx_ccid,
-		.maxlen		= sizeof(sysctl_dccp_feat_rx_ccid),
+		.data		= &sysctl_dccp_rx_ccid,
+		.maxlen		= sizeof(sysctl_dccp_rx_ccid),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &u8_max,		/* RFC 4340, 10. */
 	},
 	{
 		.procname	= "tx_ccid",
-		.data		= &sysctl_dccp_feat_tx_ccid,
-		.maxlen		= sizeof(sysctl_dccp_feat_tx_ccid),
+		.data		= &sysctl_dccp_tx_ccid,
+		.maxlen		= sizeof(sysctl_dccp_tx_ccid),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &u8_max,		/* RFC 4340, 10. */
 	},
 	{
 		.procname	= "request_retries",
 		.data		= &sysctl_dccp_request_retries,
 		.maxlen		= sizeof(sysctl_dccp_request_retries),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &u8_max,
 	},
 	{
 		.procname	= "retries1",
 		.data		= &sysctl_dccp_retries1,
 		.maxlen		= sizeof(sysctl_dccp_retries1),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &u8_max,
 	},
 	{
 		.procname	= "retries2",
 		.data		= &sysctl_dccp_retries2,
 		.maxlen		= sizeof(sysctl_dccp_retries2),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &u8_max,
 	},
 	{
 		.procname	= "tx_qlen",
 		.data		= &sysctl_dccp_tx_qlen,
 		.maxlen		= sizeof(sysctl_dccp_tx_qlen),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
 	},
 	{
 		.procname	= "sync_ratelimit",
-- 
cgit v1.2.3


From a9d8f9110d7e953c2f2b521087a4179677843c2a Mon Sep 17 00:00:00 2001
From: Evgeniy Polyakov <zbr@ioremap.net>
Date: Mon, 19 Jan 2009 16:46:02 -0800
Subject: inet: Allowing more than 64k connections and heavily optimize bind(0)
 time.

With simple extension to the binding mechanism, which allows to bind more
than 64k sockets (or smaller amount, depending on sysctl parameters),
we have to traverse the whole bind hash table to find out empty bucket.
And while it is not a problem for example for 32k connections, bind()
completion time grows exponentially (since after each successful binding
we have to traverse one bucket more to find empty one) even if we start
each time from random offset inside the hash table.

So, when hash table is full, and we want to add another socket, we have
to traverse the whole table no matter what, so effectivelly this will be
the worst case performance and it will be constant.

Attached picture shows bind() time depending on number of already bound
sockets.

Green area corresponds to the usual binding to zero port process, which
turns on kernel port selection as described above. Red area is the bind
process, when number of reuse-bound sockets is not limited by 64k (or
sysctl parameters). The same exponential growth (hidden by the green
area) before number of ports reaches sysctl limit.

At this time bind hash table has exactly one reuse-enbaled socket in a
bucket, but it is possible that they have different addresses. Actually
kernel selects the first port to try randomly, so at the beginning bind
will take roughly constant time, but with time number of port to check
after random start will increase. And that will have exponential growth,
but because of above random selection, not every next port selection
will necessary take longer time than previous. So we have to consider
the area below in the graph (if you could zoom it, you could find, that
there are many different times placed there), so area can hide another.

Blue area corresponds to the port selection optimization.

This is rather simple design approach: hashtable now maintains (unprecise
and racely updated) number of currently bound sockets, and when number
of such sockets becomes greater than predefined value (I use maximum
port range defined by sysctls), we stop traversing the whole bind hash
table and just stop at first matching bucket after random start. Above
limit roughly corresponds to the case, when bind hash table is full and
we turned on mechanism of allowing to bind more reuse-enabled sockets,
so it does not change behaviour of other sockets.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Tested-by: Denys Fedoryschenko <denys@visp.net.lb>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_hashtables.h   |  3 ++-
 net/ipv4/inet_connection_sock.c | 41 ++++++++++++++++++++++++++++++++++-------
 net/ipv4/inet_hashtables.c      | 11 ++++++++++-
 3 files changed, 46 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index f44bb5c77a70..cdc08c190638 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -82,6 +82,7 @@ struct inet_bind_bucket {
 #endif
 	unsigned short		port;
 	signed short		fastreuse;
+	int			num_owners;
 	struct hlist_node	node;
 	struct hlist_head	owners;
 };
@@ -133,7 +134,7 @@ struct inet_hashinfo {
 	struct inet_bind_hashbucket	*bhash;
 
 	unsigned int			bhash_size;
-	/* Note : 4 bytes padding on 64 bit arches */
+	int				bsockets;
 
 	struct kmem_cache		*bind_bucket_cachep;
 
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index f26ab38680de..df8e72f07478 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -93,24 +93,40 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 	struct inet_bind_hashbucket *head;
 	struct hlist_node *node;
 	struct inet_bind_bucket *tb;
-	int ret;
+	int ret, attempts = 5;
 	struct net *net = sock_net(sk);
+	int smallest_size = -1, smallest_rover;
 
 	local_bh_disable();
 	if (!snum) {
 		int remaining, rover, low, high;
 
+again:
 		inet_get_local_port_range(&low, &high);
 		remaining = (high - low) + 1;
-		rover = net_random() % remaining + low;
+		smallest_rover = rover = net_random() % remaining + low;
 
+		smallest_size = -1;
 		do {
 			head = &hashinfo->bhash[inet_bhashfn(net, rover,
 					hashinfo->bhash_size)];
 			spin_lock(&head->lock);
 			inet_bind_bucket_for_each(tb, node, &head->chain)
-				if (ib_net(tb) == net && tb->port == rover)
+				if (ib_net(tb) == net && tb->port == rover) {
+					if (tb->fastreuse > 0 &&
+					    sk->sk_reuse &&
+					    sk->sk_state != TCP_LISTEN &&
+					    (tb->num_owners < smallest_size || smallest_size == -1)) {
+						smallest_size = tb->num_owners;
+						smallest_rover = rover;
+						if (hashinfo->bsockets > (high - low) + 1) {
+							spin_unlock(&head->lock);
+							snum = smallest_rover;
+							goto have_snum;
+						}
+					}
 					goto next;
+				}
 			break;
 		next:
 			spin_unlock(&head->lock);
@@ -125,14 +141,19 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 		 * the top level, not from the 'break;' statement.
 		 */
 		ret = 1;
-		if (remaining <= 0)
+		if (remaining <= 0) {
+			if (smallest_size != -1) {
+				snum = smallest_rover;
+				goto have_snum;
+			}
 			goto fail;
-
+		}
 		/* OK, here is the one we will use.  HEAD is
 		 * non-NULL and we hold it's mutex.
 		 */
 		snum = rover;
 	} else {
+have_snum:
 		head = &hashinfo->bhash[inet_bhashfn(net, snum,
 				hashinfo->bhash_size)];
 		spin_lock(&head->lock);
@@ -145,12 +166,18 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 tb_found:
 	if (!hlist_empty(&tb->owners)) {
 		if (tb->fastreuse > 0 &&
-		    sk->sk_reuse && sk->sk_state != TCP_LISTEN) {
+		    sk->sk_reuse && sk->sk_state != TCP_LISTEN &&
+		    smallest_size == -1) {
 			goto success;
 		} else {
 			ret = 1;
-			if (inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb))
+			if (inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb)) {
+				if (sk->sk_reuse && sk->sk_state != TCP_LISTEN && --attempts >= 0) {
+					spin_unlock(&head->lock);
+					goto again;
+				}
 				goto fail_unlock;
+			}
 		}
 	}
 tb_not_found:
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 6a1045da48d2..d7b6178bf48b 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -38,6 +38,7 @@ struct inet_bind_bucket *inet_bind_bucket_create(struct kmem_cache *cachep,
 		write_pnet(&tb->ib_net, hold_net(net));
 		tb->port      = snum;
 		tb->fastreuse = 0;
+		tb->num_owners = 0;
 		INIT_HLIST_HEAD(&tb->owners);
 		hlist_add_head(&tb->node, &head->chain);
 	}
@@ -59,8 +60,13 @@ void inet_bind_bucket_destroy(struct kmem_cache *cachep, struct inet_bind_bucket
 void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
 		    const unsigned short snum)
 {
+	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
+
+	hashinfo->bsockets++;
+
 	inet_sk(sk)->num = snum;
 	sk_add_bind_node(sk, &tb->owners);
+	tb->num_owners++;
 	inet_csk(sk)->icsk_bind_hash = tb;
 }
 
@@ -75,9 +81,12 @@ static void __inet_put_port(struct sock *sk)
 	struct inet_bind_hashbucket *head = &hashinfo->bhash[bhash];
 	struct inet_bind_bucket *tb;
 
+	hashinfo->bsockets--;
+
 	spin_lock(&head->lock);
 	tb = inet_csk(sk)->icsk_bind_hash;
 	__sk_del_bind_node(sk);
+	tb->num_owners--;
 	inet_csk(sk)->icsk_bind_hash = NULL;
 	inet_sk(sk)->num = 0;
 	inet_bind_bucket_destroy(hashinfo->bind_bucket_cachep, tb);
@@ -444,9 +453,9 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
 			 */
 			inet_bind_bucket_for_each(tb, node, &head->chain) {
 				if (ib_net(tb) == net && tb->port == port) {
-					WARN_ON(hlist_empty(&tb->owners));
 					if (tb->fastreuse >= 0)
 						goto next_port;
+					WARN_ON(hlist_empty(&tb->owners));
 					if (!check_established(death_row, sk,
 								port, &tw))
 						goto ok;
-- 
cgit v1.2.3


From 9f4d26d0f3016cf8813977d624751b94465fa317 Mon Sep 17 00:00:00 2001
From: Mark McLoughlin <markmc@redhat.com>
Date: Mon, 19 Jan 2009 17:09:49 -0800
Subject: virtio_net: add link status handling

Allow the host to inform us that the link is down by adding
a VIRTIO_NET_F_STATUS which indicates that device status is
available in virtio_net config.

This is currently useful for simulating link down conditions
(e.g. using proposed qemu 'set_link' monitor command) but
would also be needed if we were to support device assignment
via virtio.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (added future masking)
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c   | 43 ++++++++++++++++++++++++++++++++++++++++++-
 include/linux/virtio_net.h |  5 +++++
 2 files changed, 47 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 30ae6d9a12af..9b33d6ebf542 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -42,6 +42,7 @@ struct virtnet_info
 	struct virtqueue *rvq, *svq;
 	struct net_device *dev;
 	struct napi_struct napi;
+	unsigned int status;
 
 	/* The skb we couldn't send because buffers were full. */
 	struct sk_buff *last_xmit_skb;
@@ -611,6 +612,7 @@ static struct ethtool_ops virtnet_ethtool_ops = {
 	.set_tx_csum = virtnet_set_tx_csum,
 	.set_sg = ethtool_op_set_sg,
 	.set_tso = ethtool_op_set_tso,
+	.get_link = ethtool_op_get_link,
 };
 
 #define MIN_MTU 68
@@ -636,6 +638,41 @@ static const struct net_device_ops virtnet_netdev = {
 #endif
 };
 
+static void virtnet_update_status(struct virtnet_info *vi)
+{
+	u16 v;
+
+	if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_STATUS))
+		return;
+
+	vi->vdev->config->get(vi->vdev,
+			      offsetof(struct virtio_net_config, status),
+			      &v, sizeof(v));
+
+	/* Ignore unknown (future) status bits */
+	v &= VIRTIO_NET_S_LINK_UP;
+
+	if (vi->status == v)
+		return;
+
+	vi->status = v;
+
+	if (vi->status & VIRTIO_NET_S_LINK_UP) {
+		netif_carrier_on(vi->dev);
+		netif_wake_queue(vi->dev);
+	} else {
+		netif_carrier_off(vi->dev);
+		netif_stop_queue(vi->dev);
+	}
+}
+
+static void virtnet_config_changed(struct virtio_device *vdev)
+{
+	struct virtnet_info *vi = vdev->priv;
+
+	virtnet_update_status(vi);
+}
+
 static int virtnet_probe(struct virtio_device *vdev)
 {
 	int err;
@@ -738,6 +775,9 @@ static int virtnet_probe(struct virtio_device *vdev)
 		goto unregister;
 	}
 
+	vi->status = VIRTIO_NET_S_LINK_UP;
+	virtnet_update_status(vi);
+
 	pr_debug("virtnet: registered device %s\n", dev->name);
 	return 0;
 
@@ -793,7 +833,7 @@ static unsigned int features[] = {
 	VIRTIO_NET_F_HOST_TSO4, VIRTIO_NET_F_HOST_UFO, VIRTIO_NET_F_HOST_TSO6,
 	VIRTIO_NET_F_HOST_ECN, VIRTIO_NET_F_GUEST_TSO4, VIRTIO_NET_F_GUEST_TSO6,
 	VIRTIO_NET_F_GUEST_ECN, /* We don't yet handle UFO input. */
-	VIRTIO_NET_F_MRG_RXBUF,
+	VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS,
 	VIRTIO_F_NOTIFY_ON_EMPTY,
 };
 
@@ -805,6 +845,7 @@ static struct virtio_driver virtio_net = {
 	.id_table =	id_table,
 	.probe =	virtnet_probe,
 	.remove =	__devexit_p(virtnet_remove),
+	.config_changed = virtnet_config_changed,
 };
 
 static int __init init(void)
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 5cdd0aa8bde9..f76bd4a753ef 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -21,11 +21,16 @@
 #define VIRTIO_NET_F_HOST_ECN	13	/* Host can handle TSO[6] w/ ECN in. */
 #define VIRTIO_NET_F_HOST_UFO	14	/* Host can handle UFO in. */
 #define VIRTIO_NET_F_MRG_RXBUF	15	/* Host can merge receive buffers. */
+#define VIRTIO_NET_F_STATUS	16	/* virtio_net_config.status available */
+
+#define VIRTIO_NET_S_LINK_UP	1	/* Link is up */
 
 struct virtio_net_config
 {
 	/* The config defining mac address (if VIRTIO_NET_F_MAC) */
 	__u8 mac[6];
+	/* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
+	__u16 status;
 } __attribute__((packed));
 
 /* This is the first element of the scatter-gather list.  If you don't
-- 
cgit v1.2.3


From 273ec51dd7ceaa76e038875d85061ec856d8905e Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Wed, 21 Jan 2009 15:55:35 -0800
Subject: net: ppp_generic - introduce net-namespace functionality v2

- Each namespace contains ppp channels and units separately
  with appropriate locks

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ppp_generic.c   | 275 +++++++++++++++++++++++++++++++-------------
 include/linux/ppp_channel.h |   4 +
 2 files changed, 202 insertions(+), 77 deletions(-)

(limited to 'include')

diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 7b2728b8f1b7..4405a76ed3da 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -49,6 +49,10 @@
 #include <net/slhc_vj.h>
 #include <asm/atomic.h>
 
+#include <linux/nsproxy.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+
 #define PPP_VERSION	"2.4.2"
 
 /*
@@ -131,6 +135,7 @@ struct ppp {
 	struct sock_filter *active_filter;/* filter for pkts to reset idle */
 	unsigned pass_len, active_len;
 #endif /* CONFIG_PPP_FILTER */
+	struct net	*ppp_net;	/* the net we belong to */
 };
 
 /*
@@ -155,6 +160,7 @@ struct channel {
 	struct rw_semaphore chan_sem;	/* protects `chan' during chan ioctl */
 	spinlock_t	downl;		/* protects `chan', file.xq dequeue */
 	struct ppp	*ppp;		/* ppp unit we're connected to */
+	struct net	*chan_net;	/* the net channel belongs to */
 	struct list_head clist;		/* link in list of channels per unit */
 	rwlock_t	upl;		/* protects `ppp' */
 #ifdef CONFIG_PPP_MULTILINK
@@ -173,26 +179,35 @@ struct channel {
  * channel.downl.
  */
 
-/*
- * all_ppp_mutex protects the all_ppp_units mapping.
- * It also ensures that finding a ppp unit in the all_ppp_units map
- * and updating its file.refcnt field is atomic.
- */
-static DEFINE_MUTEX(all_ppp_mutex);
 static atomic_t ppp_unit_count = ATOMIC_INIT(0);
-static DEFINE_IDR(ppp_units_idr);
-
-/*
- * all_channels_lock protects all_channels and last_channel_index,
- * and the atomicity of find a channel and updating its file.refcnt
- * field.
- */
-static DEFINE_SPINLOCK(all_channels_lock);
-static LIST_HEAD(all_channels);
-static LIST_HEAD(new_channels);
-static int last_channel_index;
 static atomic_t channel_count = ATOMIC_INIT(0);
 
+/* per-net private data for this module */
+static unsigned int ppp_net_id;
+struct ppp_net {
+	/* units to ppp mapping */
+	struct idr units_idr;
+
+	/*
+	 * all_ppp_mutex protects the units_idr mapping.
+	 * It also ensures that finding a ppp unit in the units_idr
+	 * map and updating its file.refcnt field is atomic.
+	 */
+	struct mutex all_ppp_mutex;
+
+	/* channels */
+	struct list_head all_channels;
+	struct list_head new_channels;
+	int last_channel_index;
+
+	/*
+	 * all_channels_lock protects all_channels and
+	 * last_channel_index, and the atomicity of find
+	 * a channel and updating its file.refcnt field.
+	 */
+	spinlock_t all_channels_lock;
+};
+
 /* Get the PPP protocol number from a skb */
 #define PPP_PROTO(skb)	(((skb)->data[0] << 8) + (skb)->data[1])
 
@@ -216,8 +231,8 @@ static atomic_t channel_count = ATOMIC_INIT(0);
 #define seq_after(a, b)		((s32)((a) - (b)) > 0)
 
 /* Prototypes. */
-static int ppp_unattached_ioctl(struct ppp_file *pf, struct file *file,
-				unsigned int cmd, unsigned long arg);
+static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf,
+			struct file *file, unsigned int cmd, unsigned long arg);
 static void ppp_xmit_process(struct ppp *ppp);
 static void ppp_send_frame(struct ppp *ppp, struct sk_buff *skb);
 static void ppp_push(struct ppp *ppp);
@@ -240,12 +255,12 @@ static void ppp_ccp_peek(struct ppp *ppp, struct sk_buff *skb, int inbound);
 static void ppp_ccp_closed(struct ppp *ppp);
 static struct compressor *find_compressor(int type);
 static void ppp_get_stats(struct ppp *ppp, struct ppp_stats *st);
-static struct ppp *ppp_create_interface(int unit, int *retp);
+static struct ppp *ppp_create_interface(struct net *net, int unit, int *retp);
 static void init_ppp_file(struct ppp_file *pf, int kind);
 static void ppp_shutdown_interface(struct ppp *ppp);
 static void ppp_destroy_interface(struct ppp *ppp);
-static struct ppp *ppp_find_unit(int unit);
-static struct channel *ppp_find_channel(int unit);
+static struct ppp *ppp_find_unit(struct ppp_net *pn, int unit);
+static struct channel *ppp_find_channel(struct ppp_net *pn, int unit);
 static int ppp_connect_channel(struct channel *pch, int unit);
 static int ppp_disconnect_channel(struct channel *pch);
 static void ppp_destroy_channel(struct channel *pch);
@@ -256,6 +271,14 @@ static void *unit_find(struct idr *p, int n);
 
 static struct class *ppp_class;
 
+/* per net-namespace data */
+static inline struct ppp_net *ppp_pernet(struct net *net)
+{
+	BUG_ON(!net);
+
+	return net_generic(net, ppp_net_id);
+}
+
 /* Translates a PPP protocol number to a NP index (NP == network protocol) */
 static inline int proto_to_npindex(int proto)
 {
@@ -544,7 +567,8 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	int __user *p = argp;
 
 	if (!pf)
-		return ppp_unattached_ioctl(pf, file, cmd, arg);
+		return ppp_unattached_ioctl(current->nsproxy->net_ns,
+					pf, file, cmd, arg);
 
 	if (cmd == PPPIOCDETACH) {
 		/*
@@ -763,12 +787,13 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	return err;
 }
 
-static int ppp_unattached_ioctl(struct ppp_file *pf, struct file *file,
-				unsigned int cmd, unsigned long arg)
+static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf,
+			struct file *file, unsigned int cmd, unsigned long arg)
 {
 	int unit, err = -EFAULT;
 	struct ppp *ppp;
 	struct channel *chan;
+	struct ppp_net *pn;
 	int __user *p = (int __user *)arg;
 
 	lock_kernel();
@@ -777,7 +802,7 @@ static int ppp_unattached_ioctl(struct ppp_file *pf, struct file *file,
 		/* Create a new ppp unit */
 		if (get_user(unit, p))
 			break;
-		ppp = ppp_create_interface(unit, &err);
+		ppp = ppp_create_interface(net, unit, &err);
 		if (!ppp)
 			break;
 		file->private_data = &ppp->file;
@@ -792,29 +817,31 @@ static int ppp_unattached_ioctl(struct ppp_file *pf, struct file *file,
 		/* Attach to an existing ppp unit */
 		if (get_user(unit, p))
 			break;
-		mutex_lock(&all_ppp_mutex);
 		err = -ENXIO;
-		ppp = ppp_find_unit(unit);
+		pn = ppp_pernet(net);
+		mutex_lock(&pn->all_ppp_mutex);
+		ppp = ppp_find_unit(pn, unit);
 		if (ppp) {
 			atomic_inc(&ppp->file.refcnt);
 			file->private_data = &ppp->file;
 			err = 0;
 		}
-		mutex_unlock(&all_ppp_mutex);
+		mutex_unlock(&pn->all_ppp_mutex);
 		break;
 
 	case PPPIOCATTCHAN:
 		if (get_user(unit, p))
 			break;
-		spin_lock_bh(&all_channels_lock);
 		err = -ENXIO;
-		chan = ppp_find_channel(unit);
+		pn = ppp_pernet(net);
+		spin_lock_bh(&pn->all_channels_lock);
+		chan = ppp_find_channel(pn, unit);
 		if (chan) {
 			atomic_inc(&chan->file.refcnt);
 			file->private_data = &chan->file;
 			err = 0;
 		}
-		spin_unlock_bh(&all_channels_lock);
+		spin_unlock_bh(&pn->all_channels_lock);
 		break;
 
 	default:
@@ -834,6 +861,51 @@ static const struct file_operations ppp_device_fops = {
 	.release	= ppp_release
 };
 
+static __net_init int ppp_init_net(struct net *net)
+{
+	struct ppp_net *pn;
+	int err;
+
+	pn = kzalloc(sizeof(*pn), GFP_KERNEL);
+	if (!pn)
+		return -ENOMEM;
+
+	idr_init(&pn->units_idr);
+	mutex_init(&pn->all_ppp_mutex);
+
+	INIT_LIST_HEAD(&pn->all_channels);
+	INIT_LIST_HEAD(&pn->new_channels);
+
+	spin_lock_init(&pn->all_channels_lock);
+
+	err = net_assign_generic(net, ppp_net_id, pn);
+	if (err) {
+		kfree(pn);
+		return err;
+	}
+
+	return 0;
+}
+
+static __net_exit void ppp_exit_net(struct net *net)
+{
+	struct ppp_net *pn;
+
+	pn = net_generic(net, ppp_net_id);
+	idr_destroy(&pn->units_idr);
+	/*
+	 * if someone has cached our net then
+	 * further net_generic call will return NULL
+	 */
+	net_assign_generic(net, ppp_net_id, NULL);
+	kfree(pn);
+}
+
+static __net_initdata struct pernet_operations ppp_net_ops = {
+	.init = ppp_init_net,
+	.exit = ppp_exit_net,
+};
+
 #define PPP_MAJOR	108
 
 /* Called at boot time if ppp is compiled into the kernel,
@@ -843,25 +915,36 @@ static int __init ppp_init(void)
 	int err;
 
 	printk(KERN_INFO "PPP generic driver version " PPP_VERSION "\n");
-	err = register_chrdev(PPP_MAJOR, "ppp", &ppp_device_fops);
-	if (!err) {
-		ppp_class = class_create(THIS_MODULE, "ppp");
-		if (IS_ERR(ppp_class)) {
-			err = PTR_ERR(ppp_class);
-			goto out_chrdev;
-		}
-		device_create(ppp_class, NULL, MKDEV(PPP_MAJOR, 0), NULL,
-			      "ppp");
+
+	err = register_pernet_gen_device(&ppp_net_id, &ppp_net_ops);
+	if (err) {
+		printk(KERN_ERR "failed to register PPP pernet device (%d)\n", err);
+		goto out;
 	}
 
-out:
-	if (err)
+	err = register_chrdev(PPP_MAJOR, "ppp", &ppp_device_fops);
+	if (err) {
 		printk(KERN_ERR "failed to register PPP device (%d)\n", err);
-	return err;
+		goto out_net;
+	}
+
+	ppp_class = class_create(THIS_MODULE, "ppp");
+	if (IS_ERR(ppp_class)) {
+		err = PTR_ERR(ppp_class);
+		goto out_chrdev;
+	}
+
+	/* not a big deal if we fail here :-) */
+	device_create(ppp_class, NULL, MKDEV(PPP_MAJOR, 0), NULL, "ppp");
+
+	return 0;
 
 out_chrdev:
 	unregister_chrdev(PPP_MAJOR, "ppp");
-	goto out;
+out_net:
+	unregister_pernet_gen_device(ppp_net_id, &ppp_net_ops);
+out:
+	return err;
 }
 
 /*
@@ -969,6 +1052,7 @@ static void ppp_setup(struct net_device *dev)
 	dev->tx_queue_len = 3;
 	dev->type = ARPHRD_PPP;
 	dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+	dev->features |= NETIF_F_NETNS_LOCAL;
 }
 
 /*
@@ -1986,19 +2070,27 @@ ppp_mp_reconstruct(struct ppp *ppp)
  * Channel interface.
  */
 
-/*
- * Create a new, unattached ppp channel.
- */
-int
-ppp_register_channel(struct ppp_channel *chan)
+/* Create a new, unattached ppp channel. */
+int ppp_register_channel(struct ppp_channel *chan)
+{
+	return ppp_register_net_channel(current->nsproxy->net_ns, chan);
+}
+
+/* Create a new, unattached ppp channel for specified net. */
+int ppp_register_net_channel(struct net *net, struct ppp_channel *chan)
 {
 	struct channel *pch;
+	struct ppp_net *pn;
 
 	pch = kzalloc(sizeof(struct channel), GFP_KERNEL);
 	if (!pch)
 		return -ENOMEM;
+
+	pn = ppp_pernet(net);
+
 	pch->ppp = NULL;
 	pch->chan = chan;
+	pch->chan_net = net;
 	chan->ppp = pch;
 	init_ppp_file(&pch->file, CHANNEL);
 	pch->file.hdrlen = chan->hdrlen;
@@ -2008,11 +2100,13 @@ ppp_register_channel(struct ppp_channel *chan)
 	init_rwsem(&pch->chan_sem);
 	spin_lock_init(&pch->downl);
 	rwlock_init(&pch->upl);
-	spin_lock_bh(&all_channels_lock);
-	pch->file.index = ++last_channel_index;
-	list_add(&pch->list, &new_channels);
+
+	spin_lock_bh(&pn->all_channels_lock);
+	pch->file.index = ++pn->last_channel_index;
+	list_add(&pch->list, &pn->new_channels);
 	atomic_inc(&channel_count);
-	spin_unlock_bh(&all_channels_lock);
+	spin_unlock_bh(&pn->all_channels_lock);
+
 	return 0;
 }
 
@@ -2053,9 +2147,11 @@ void
 ppp_unregister_channel(struct ppp_channel *chan)
 {
 	struct channel *pch = chan->ppp;
+	struct ppp_net *pn;
 
 	if (!pch)
 		return;		/* should never happen */
+
 	chan->ppp = NULL;
 
 	/*
@@ -2068,9 +2164,12 @@ ppp_unregister_channel(struct ppp_channel *chan)
 	spin_unlock_bh(&pch->downl);
 	up_write(&pch->chan_sem);
 	ppp_disconnect_channel(pch);
-	spin_lock_bh(&all_channels_lock);
+
+	pn = ppp_pernet(pch->chan_net);
+	spin_lock_bh(&pn->all_channels_lock);
 	list_del(&pch->list);
-	spin_unlock_bh(&all_channels_lock);
+	spin_unlock_bh(&pn->all_channels_lock);
+
 	pch->file.dead = 1;
 	wake_up_interruptible(&pch->file.rwait);
 	if (atomic_dec_and_test(&pch->file.refcnt))
@@ -2395,9 +2494,10 @@ ppp_get_stats(struct ppp *ppp, struct ppp_stats *st)
  * unit == -1 means allocate a new number.
  */
 static struct ppp *
-ppp_create_interface(int unit, int *retp)
+ppp_create_interface(struct net *net, int unit, int *retp)
 {
 	struct ppp *ppp;
+	struct ppp_net *pn;
 	struct net_device *dev = NULL;
 	int ret = -ENOMEM;
 	int i;
@@ -2406,6 +2506,8 @@ ppp_create_interface(int unit, int *retp)
 	if (!dev)
 		goto out1;
 
+	pn = ppp_pernet(net);
+
 	ppp = netdev_priv(dev);
 	ppp->dev = dev;
 	ppp->mru = PPP_MRU;
@@ -2421,17 +2523,23 @@ ppp_create_interface(int unit, int *retp)
 	skb_queue_head_init(&ppp->mrq);
 #endif /* CONFIG_PPP_MULTILINK */
 
+	/*
+	 * drum roll: don't forget to set
+	 * the net device is belong to
+	 */
+	dev_net_set(dev, net);
+
 	ret = -EEXIST;
-	mutex_lock(&all_ppp_mutex);
+	mutex_lock(&pn->all_ppp_mutex);
 
 	if (unit < 0) {
-		unit = unit_get(&ppp_units_idr, ppp);
+		unit = unit_get(&pn->units_idr, ppp);
 		if (unit < 0) {
 			*retp = unit;
 			goto out2;
 		}
 	} else {
-		if (unit_find(&ppp_units_idr, unit))
+		if (unit_find(&pn->units_idr, unit))
 			goto out2; /* unit already exists */
 		/*
 		 * if caller need a specified unit number
@@ -2442,7 +2550,7 @@ ppp_create_interface(int unit, int *retp)
 		 * fair but at least pppd will ask us to allocate
 		 * new unit in this case so user is happy :)
 		 */
-		unit = unit_set(&ppp_units_idr, ppp, unit);
+		unit = unit_set(&pn->units_idr, ppp, unit);
 		if (unit < 0)
 			goto out2;
 	}
@@ -2453,20 +2561,22 @@ ppp_create_interface(int unit, int *retp)
 
 	ret = register_netdev(dev);
 	if (ret != 0) {
-		unit_put(&ppp_units_idr, unit);
+		unit_put(&pn->units_idr, unit);
 		printk(KERN_ERR "PPP: couldn't register device %s (%d)\n",
 		       dev->name, ret);
 		goto out2;
 	}
 
+	ppp->ppp_net = net;
+
 	atomic_inc(&ppp_unit_count);
-	mutex_unlock(&all_ppp_mutex);
+	mutex_unlock(&pn->all_ppp_mutex);
 
 	*retp = 0;
 	return ppp;
 
 out2:
-	mutex_unlock(&all_ppp_mutex);
+	mutex_unlock(&pn->all_ppp_mutex);
 	free_netdev(dev);
 out1:
 	*retp = ret;
@@ -2492,7 +2602,11 @@ init_ppp_file(struct ppp_file *pf, int kind)
  */
 static void ppp_shutdown_interface(struct ppp *ppp)
 {
-	mutex_lock(&all_ppp_mutex);
+	struct ppp_net *pn;
+
+	pn = ppp_pernet(ppp->ppp_net);
+	mutex_lock(&pn->all_ppp_mutex);
+
 	/* This will call dev_close() for us. */
 	ppp_lock(ppp);
 	if (!ppp->closing) {
@@ -2502,11 +2616,12 @@ static void ppp_shutdown_interface(struct ppp *ppp)
 	} else
 		ppp_unlock(ppp);
 
-	unit_put(&ppp_units_idr, ppp->file.index);
+	unit_put(&pn->units_idr, ppp->file.index);
 	ppp->file.dead = 1;
 	ppp->owner = NULL;
 	wake_up_interruptible(&ppp->file.rwait);
-	mutex_unlock(&all_ppp_mutex);
+
+	mutex_unlock(&pn->all_ppp_mutex);
 }
 
 /*
@@ -2554,9 +2669,9 @@ static void ppp_destroy_interface(struct ppp *ppp)
  * The caller should have locked the all_ppp_mutex.
  */
 static struct ppp *
-ppp_find_unit(int unit)
+ppp_find_unit(struct ppp_net *pn, int unit)
 {
-	return unit_find(&ppp_units_idr, unit);
+	return unit_find(&pn->units_idr, unit);
 }
 
 /*
@@ -2568,20 +2683,22 @@ ppp_find_unit(int unit)
  * when we have a lot of channels in use.
  */
 static struct channel *
-ppp_find_channel(int unit)
+ppp_find_channel(struct ppp_net *pn, int unit)
 {
 	struct channel *pch;
 
-	list_for_each_entry(pch, &new_channels, list) {
+	list_for_each_entry(pch, &pn->new_channels, list) {
 		if (pch->file.index == unit) {
-			list_move(&pch->list, &all_channels);
+			list_move(&pch->list, &pn->all_channels);
 			return pch;
 		}
 	}
-	list_for_each_entry(pch, &all_channels, list) {
+
+	list_for_each_entry(pch, &pn->all_channels, list) {
 		if (pch->file.index == unit)
 			return pch;
 	}
+
 	return NULL;
 }
 
@@ -2592,11 +2709,14 @@ static int
 ppp_connect_channel(struct channel *pch, int unit)
 {
 	struct ppp *ppp;
+	struct ppp_net *pn;
 	int ret = -ENXIO;
 	int hdrlen;
 
-	mutex_lock(&all_ppp_mutex);
-	ppp = ppp_find_unit(unit);
+	pn = ppp_pernet(pch->chan_net);
+
+	mutex_lock(&pn->all_ppp_mutex);
+	ppp = ppp_find_unit(pn, unit);
 	if (!ppp)
 		goto out;
 	write_lock_bh(&pch->upl);
@@ -2620,7 +2740,7 @@ ppp_connect_channel(struct channel *pch, int unit)
  outl:
 	write_unlock_bh(&pch->upl);
  out:
-	mutex_unlock(&all_ppp_mutex);
+	mutex_unlock(&pn->all_ppp_mutex);
 	return ret;
 }
 
@@ -2677,7 +2797,7 @@ static void __exit ppp_cleanup(void)
 	unregister_chrdev(PPP_MAJOR, "ppp");
 	device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0));
 	class_destroy(ppp_class);
-	idr_destroy(&ppp_units_idr);
+	unregister_pernet_gen_device(ppp_net_id, &ppp_net_ops);
 }
 
 /*
@@ -2743,6 +2863,7 @@ static void *unit_find(struct idr *p, int n)
 module_init(ppp_init);
 module_exit(ppp_cleanup);
 
+EXPORT_SYMBOL(ppp_register_net_channel);
 EXPORT_SYMBOL(ppp_register_channel);
 EXPORT_SYMBOL(ppp_unregister_channel);
 EXPORT_SYMBOL(ppp_channel_index);
diff --git a/include/linux/ppp_channel.h b/include/linux/ppp_channel.h
index a942892d6dfe..9d64bdf14770 100644
--- a/include/linux/ppp_channel.h
+++ b/include/linux/ppp_channel.h
@@ -22,6 +22,7 @@
 #include <linux/list.h>
 #include <linux/skbuff.h>
 #include <linux/poll.h>
+#include <net/net_namespace.h>
 
 struct ppp_channel;
 
@@ -56,6 +57,9 @@ extern void ppp_input(struct ppp_channel *, struct sk_buff *);
    that we may have missed a packet. */
 extern void ppp_input_error(struct ppp_channel *, int code);
 
+/* Attach a channel to a given PPP unit in specified net. */
+extern int ppp_register_net_channel(struct net *, struct ppp_channel *);
+
 /* Attach a channel to a given PPP unit. */
 extern int ppp_register_channel(struct ppp_channel *);
 
-- 
cgit v1.2.3


From d52a61c04c6c0814ca270a088feedb126436598e Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Thu, 22 Jan 2009 00:38:56 -0800
Subject: irq: clean up irq stat methods

David Miller suggested, related to a kstat_irqs related build breakage:

> Either linux/kernel_stat.h provides the kstat_incr_irqs_this_cpu
> interface or linux/irq.h does, not both.

So move them to kernel_stat.h.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/irq.h         | 6 ------
 include/linux/kernel_stat.h | 9 ++++++---
 2 files changed, 6 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/include/linux/irq.h b/include/linux/irq.h
index e9a878978c85..48901e9a33b9 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -202,12 +202,6 @@ extern struct irq_desc irq_desc[NR_IRQS];
 extern struct irq_desc *move_irq_desc(struct irq_desc *old_desc, int cpu);
 #endif /* CONFIG_SPARSE_IRQ */
 
-#define kstat_irqs_this_cpu(DESC) \
-	((DESC)->kstat_irqs[smp_processor_id()])
-#define kstat_incr_irqs_this_cpu(irqno, DESC) \
-	((DESC)->kstat_irqs[smp_processor_id()]++)
-
-
 extern struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu);
 
 static inline struct irq_desc *
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index a3431b164bea..0c8b89f28a95 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -52,16 +52,19 @@ static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
 {
 	kstat_this_cpu.irqs[irq]++;
 }
-#endif
-
 
-#ifndef CONFIG_GENERIC_HARDIRQS
 static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
 {
        return kstat_cpu(cpu).irqs[irq];
 }
 #else
+#include <linux/irq.h>
 extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
+#define kstat_irqs_this_cpu(DESC) \
+	((DESC)->kstat_irqs[smp_processor_id()])
+#define kstat_incr_irqs_this_cpu(irqno, DESC) \
+	((DESC)->kstat_irqs[smp_processor_id()]++)
+
 #endif
 
 /*
-- 
cgit v1.2.3


From 70a269e6c9c9b38b1a37dce068c59e9a912f8578 Mon Sep 17 00:00:00 2001
From: Benjamin Thery <benjamin.thery@bull.net>
Date: Thu, 22 Jan 2009 04:56:15 +0000
Subject: netns: ipmr: allocate mroute_socket per-namespace.

Preliminary work to make IPv4 multicast routing netns-aware.

Make IPv4 multicast routing mroute_socket per-namespace,
moves it into struct netns_ipv4.

At the moment, mroute_socket is only referenced in init_net.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netns/ipv4.h |  4 ++++
 net/ipv4/ipmr.c          | 28 +++++++++++++---------------
 2 files changed, 17 insertions(+), 15 deletions(-)

(limited to 'include')

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 977f482d97a9..4f00722c7478 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -54,5 +54,9 @@ struct netns_ipv4 {
 
 	struct timer_list rt_secret_timer;
 	atomic_t rt_genid;
+
+#ifdef CONFIG_IP_MROUTE
+	struct sock		*mroute_sk;
+#endif
 };
 #endif
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 14666449dc1c..ac324b702e8b 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -67,9 +67,6 @@
 #define CONFIG_IP_PIMSM	1
 #endif
 
-static struct sock *mroute_socket;
-
-
 /* Big lock, protecting vif table, mrt cache and mroute socket state.
    Note that the changes are semaphored via rtnl_lock.
  */
@@ -658,7 +655,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
 	skb->transport_header = skb->network_header;
 	}
 
-	if (mroute_socket == NULL) {
+	if (init_net.ipv4.mroute_sk == NULL) {
 		kfree_skb(skb);
 		return -EINVAL;
 	}
@@ -666,7 +663,8 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
 	/*
 	 *	Deliver to mrouted
 	 */
-	if ((ret = sock_queue_rcv_skb(mroute_socket, skb))<0) {
+	ret = sock_queue_rcv_skb(init_net.ipv4.mroute_sk, skb);
+	if (ret < 0) {
 		if (net_ratelimit())
 			printk(KERN_WARNING "mroute: pending queue full, dropping entries.\n");
 		kfree_skb(skb);
@@ -896,11 +894,11 @@ static void mroute_clean_tables(struct sock *sk)
 static void mrtsock_destruct(struct sock *sk)
 {
 	rtnl_lock();
-	if (sk == mroute_socket) {
+	if (sk == init_net.ipv4.mroute_sk) {
 		IPV4_DEVCONF_ALL(sock_net(sk), MC_FORWARDING)--;
 
 		write_lock_bh(&mrt_lock);
-		mroute_socket = NULL;
+		init_net.ipv4.mroute_sk = NULL;
 		write_unlock_bh(&mrt_lock);
 
 		mroute_clean_tables(sk);
@@ -922,7 +920,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 	struct mfcctl mfc;
 
 	if (optname != MRT_INIT) {
-		if (sk != mroute_socket && !capable(CAP_NET_ADMIN))
+		if (sk != init_net.ipv4.mroute_sk && !capable(CAP_NET_ADMIN))
 			return -EACCES;
 	}
 
@@ -935,7 +933,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 			return -ENOPROTOOPT;
 
 		rtnl_lock();
-		if (mroute_socket) {
+		if (init_net.ipv4.mroute_sk) {
 			rtnl_unlock();
 			return -EADDRINUSE;
 		}
@@ -943,7 +941,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 		ret = ip_ra_control(sk, 1, mrtsock_destruct);
 		if (ret == 0) {
 			write_lock_bh(&mrt_lock);
-			mroute_socket = sk;
+			init_net.ipv4.mroute_sk = sk;
 			write_unlock_bh(&mrt_lock);
 
 			IPV4_DEVCONF_ALL(sock_net(sk), MC_FORWARDING)++;
@@ -951,7 +949,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 		rtnl_unlock();
 		return ret;
 	case MRT_DONE:
-		if (sk != mroute_socket)
+		if (sk != init_net.ipv4.mroute_sk)
 			return -EACCES;
 		return ip_ra_control(sk, 0, NULL);
 	case MRT_ADD_VIF:
@@ -964,7 +962,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 			return -ENFILE;
 		rtnl_lock();
 		if (optname == MRT_ADD_VIF) {
-			ret = vif_add(&vif, sk==mroute_socket);
+			ret = vif_add(&vif, sk == init_net.ipv4.mroute_sk);
 		} else {
 			ret = vif_delete(vif.vifc_vifi, 0);
 		}
@@ -985,7 +983,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 		if (optname == MRT_DEL_MFC)
 			ret = ipmr_mfc_delete(&mfc);
 		else
-			ret = ipmr_mfc_add(&mfc, sk==mroute_socket);
+			ret = ipmr_mfc_add(&mfc, sk == init_net.ipv4.mroute_sk);
 		rtnl_unlock();
 		return ret;
 		/*
@@ -1425,9 +1423,9 @@ int ip_mr_input(struct sk_buff *skb)
 			       that we can forward NO IGMP messages.
 			     */
 			    read_lock(&mrt_lock);
-			    if (mroute_socket) {
+			    if (init_net.ipv4.mroute_sk) {
 				    nf_reset(skb);
-				    raw_rcv(mroute_socket, skb);
+				    raw_rcv(init_net.ipv4.mroute_sk, skb);
 				    read_unlock(&mrt_lock);
 				    return 0;
 			    }
-- 
cgit v1.2.3


From cf958ae377ee2545ae70cf48d38e7eb4308c27ea Mon Sep 17 00:00:00 2001
From: Benjamin Thery <benjamin.thery@bull.net>
Date: Thu, 22 Jan 2009 04:56:16 +0000
Subject: netns: ipmr: dynamically allocate vif_table

Preliminary work to make IPv6 multicast routing netns-aware.

Dynamically allocate interface table vif_table and move it to
struct netns_ipv4, and update MIF_EXISTS() macro.

At the moment, vif_table is only referenced in init_net.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netns/ipv4.h |   2 +
 net/ipv4/ipmr.c          | 109 +++++++++++++++++++++++++++++------------------
 2 files changed, 70 insertions(+), 41 deletions(-)

(limited to 'include')

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 4f00722c7478..edbcccbbc318 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -57,6 +57,8 @@ struct netns_ipv4 {
 
 #ifdef CONFIG_IP_MROUTE
 	struct sock		*mroute_sk;
+	struct vif_device	*vif_table;
+	int			maxvif;
 #endif
 };
 #endif
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index ac324b702e8b..75a5f79cc226 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -77,10 +77,7 @@ static DEFINE_RWLOCK(mrt_lock);
  *	Multicast router control variables
  */
 
-static struct vif_device vif_table[MAXVIFS];		/* Devices 		*/
-static int maxvif;
-
-#define VIF_EXISTS(idx) (vif_table[idx].dev != NULL)
+#define VIF_EXISTS(_net, _idx) ((_net)->ipv4.vif_table[_idx].dev != NULL)
 
 static int mroute_do_assert;				/* Set in PIM assert	*/
 static int mroute_do_pim;
@@ -286,10 +283,10 @@ static int vif_delete(int vifi, int notify)
 	struct net_device *dev;
 	struct in_device *in_dev;
 
-	if (vifi < 0 || vifi >= maxvif)
+	if (vifi < 0 || vifi >= init_net.ipv4.maxvif)
 		return -EADDRNOTAVAIL;
 
-	v = &vif_table[vifi];
+	v = &init_net.ipv4.vif_table[vifi];
 
 	write_lock_bh(&mrt_lock);
 	dev = v->dev;
@@ -305,13 +302,13 @@ static int vif_delete(int vifi, int notify)
 		reg_vif_num = -1;
 #endif
 
-	if (vifi+1 == maxvif) {
+	if (vifi+1 == init_net.ipv4.maxvif) {
 		int tmp;
 		for (tmp=vifi-1; tmp>=0; tmp--) {
-			if (VIF_EXISTS(tmp))
+			if (VIF_EXISTS(&init_net, tmp))
 				break;
 		}
-		maxvif = tmp+1;
+		init_net.ipv4.maxvif = tmp+1;
 	}
 
 	write_unlock_bh(&mrt_lock);
@@ -411,8 +408,9 @@ static void ipmr_update_thresholds(struct mfc_cache *cache, unsigned char *ttls)
 	cache->mfc_un.res.maxvif = 0;
 	memset(cache->mfc_un.res.ttls, 255, MAXVIFS);
 
-	for (vifi=0; vifi<maxvif; vifi++) {
-		if (VIF_EXISTS(vifi) && ttls[vifi] && ttls[vifi] < 255) {
+	for (vifi = 0; vifi < init_net.ipv4.maxvif; vifi++) {
+		if (VIF_EXISTS(&init_net, vifi) &&
+		    ttls[vifi] && ttls[vifi] < 255) {
 			cache->mfc_un.res.ttls[vifi] = ttls[vifi];
 			if (cache->mfc_un.res.minvif > vifi)
 				cache->mfc_un.res.minvif = vifi;
@@ -425,13 +423,13 @@ static void ipmr_update_thresholds(struct mfc_cache *cache, unsigned char *ttls)
 static int vif_add(struct vifctl *vifc, int mrtsock)
 {
 	int vifi = vifc->vifc_vifi;
-	struct vif_device *v = &vif_table[vifi];
+	struct vif_device *v = &init_net.ipv4.vif_table[vifi];
 	struct net_device *dev;
 	struct in_device *in_dev;
 	int err;
 
 	/* Is vif busy ? */
-	if (VIF_EXISTS(vifi))
+	if (VIF_EXISTS(&init_net, vifi))
 		return -EADDRINUSE;
 
 	switch (vifc->vifc_flags) {
@@ -509,8 +507,8 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 	if (v->flags&VIFF_REGISTER)
 		reg_vif_num = vifi;
 #endif
-	if (vifi+1 > maxvif)
-		maxvif = vifi+1;
+	if (vifi+1 > init_net.ipv4.maxvif)
+		init_net.ipv4.maxvif = vifi+1;
 	write_unlock_bh(&mrt_lock);
 	return 0;
 }
@@ -849,8 +847,8 @@ static void mroute_clean_tables(struct sock *sk)
 	/*
 	 *	Shut down all active vif entries
 	 */
-	for (i=0; i<maxvif; i++) {
-		if (!(vif_table[i].flags&VIFF_STATIC))
+	for (i = 0; i < init_net.ipv4.maxvif; i++) {
+		if (!(init_net.ipv4.vif_table[i].flags&VIFF_STATIC))
 			vif_delete(i, 0);
 	}
 
@@ -1088,11 +1086,11 @@ int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
 	case SIOCGETVIFCNT:
 		if (copy_from_user(&vr, arg, sizeof(vr)))
 			return -EFAULT;
-		if (vr.vifi >= maxvif)
+		if (vr.vifi >= init_net.ipv4.maxvif)
 			return -EINVAL;
 		read_lock(&mrt_lock);
-		vif=&vif_table[vr.vifi];
-		if (VIF_EXISTS(vr.vifi))	{
+		vif = &init_net.ipv4.vif_table[vr.vifi];
+		if (VIF_EXISTS(&init_net, vr.vifi)) {
 			vr.icount = vif->pkt_in;
 			vr.ocount = vif->pkt_out;
 			vr.ibytes = vif->bytes_in;
@@ -1140,8 +1138,8 @@ static int ipmr_device_event(struct notifier_block *this, unsigned long event, v
 
 	if (event != NETDEV_UNREGISTER)
 		return NOTIFY_DONE;
-	v=&vif_table[0];
-	for (ct=0; ct<maxvif; ct++,v++) {
+	v = &init_net.ipv4.vif_table[0];
+	for (ct = 0; ct < init_net.ipv4.maxvif; ct++, v++) {
 		if (v->dev == dev)
 			vif_delete(ct, 1);
 	}
@@ -1204,7 +1202,7 @@ static inline int ipmr_forward_finish(struct sk_buff *skb)
 static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 {
 	const struct iphdr *iph = ip_hdr(skb);
-	struct vif_device *vif = &vif_table[vifi];
+	struct vif_device *vif = &init_net.ipv4.vif_table[vifi];
 	struct net_device *dev;
 	struct rtable *rt;
 	int    encap = 0;
@@ -1305,8 +1303,8 @@ out_free:
 static int ipmr_find_vif(struct net_device *dev)
 {
 	int ct;
-	for (ct=maxvif-1; ct>=0; ct--) {
-		if (vif_table[ct].dev == dev)
+	for (ct = init_net.ipv4.maxvif-1; ct >= 0; ct--) {
+		if (init_net.ipv4.vif_table[ct].dev == dev)
 			break;
 	}
 	return ct;
@@ -1326,7 +1324,7 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
 	/*
 	 * Wrong interface: drop packet and (maybe) send PIM assert.
 	 */
-	if (vif_table[vif].dev != skb->dev) {
+	if (init_net.ipv4.vif_table[vif].dev != skb->dev) {
 		int true_vifi;
 
 		if (skb->rtable->fl.iif == 0) {
@@ -1362,8 +1360,8 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
 		goto dont_forward;
 	}
 
-	vif_table[vif].pkt_in++;
-	vif_table[vif].bytes_in += skb->len;
+	init_net.ipv4.vif_table[vif].pkt_in++;
+	init_net.ipv4.vif_table[vif].bytes_in += skb->len;
 
 	/*
 	 *	Forward the frame
@@ -1500,7 +1498,7 @@ static int __pim_rcv(struct sk_buff *skb, unsigned int pimlen)
 
 	read_lock(&mrt_lock);
 	if (reg_vif_num >= 0)
-		reg_dev = vif_table[reg_vif_num].dev;
+		reg_dev = init_net.ipv4.vif_table[reg_vif_num].dev;
 	if (reg_dev)
 		dev_hold(reg_dev);
 	read_unlock(&mrt_lock);
@@ -1581,7 +1579,7 @@ ipmr_fill_mroute(struct sk_buff *skb, struct mfc_cache *c, struct rtmsg *rtm)
 {
 	int ct;
 	struct rtnexthop *nhp;
-	struct net_device *dev = vif_table[c->mfc_parent].dev;
+	struct net_device *dev = init_net.ipv4.vif_table[c->mfc_parent].dev;
 	u8 *b = skb_tail_pointer(skb);
 	struct rtattr *mp_head;
 
@@ -1597,7 +1595,7 @@ ipmr_fill_mroute(struct sk_buff *skb, struct mfc_cache *c, struct rtmsg *rtm)
 			nhp = (struct rtnexthop *)skb_put(skb, RTA_ALIGN(sizeof(*nhp)));
 			nhp->rtnh_flags = 0;
 			nhp->rtnh_hops = c->mfc_un.res.ttls[ct];
-			nhp->rtnh_ifindex = vif_table[ct].dev->ifindex;
+			nhp->rtnh_ifindex = init_net.ipv4.vif_table[ct].dev->ifindex;
 			nhp->rtnh_len = sizeof(*nhp);
 		}
 	}
@@ -1672,11 +1670,11 @@ struct ipmr_vif_iter {
 static struct vif_device *ipmr_vif_seq_idx(struct ipmr_vif_iter *iter,
 					   loff_t pos)
 {
-	for (iter->ct = 0; iter->ct < maxvif; ++iter->ct) {
-		if (!VIF_EXISTS(iter->ct))
+	for (iter->ct = 0; iter->ct < init_net.ipv4.maxvif; ++iter->ct) {
+		if (!VIF_EXISTS(&init_net, iter->ct))
 			continue;
 		if (pos-- == 0)
-			return &vif_table[iter->ct];
+			return &init_net.ipv4.vif_table[iter->ct];
 	}
 	return NULL;
 }
@@ -1697,10 +1695,10 @@ static void *ipmr_vif_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 	if (v == SEQ_START_TOKEN)
 		return ipmr_vif_seq_idx(iter, 0);
 
-	while (++iter->ct < maxvif) {
-		if (!VIF_EXISTS(iter->ct))
+	while (++iter->ct < init_net.ipv4.maxvif) {
+		if (!VIF_EXISTS(&init_net, iter->ct))
 			continue;
-		return &vif_table[iter->ct];
+		return &init_net.ipv4.vif_table[iter->ct];
 	}
 	return NULL;
 }
@@ -1722,7 +1720,7 @@ static int ipmr_vif_seq_show(struct seq_file *seq, void *v)
 
 		seq_printf(seq,
 			   "%2Zd %-10s %8ld %7ld  %8ld %7ld %05X %08X %08X\n",
-			   vif - vif_table,
+			   vif - init_net.ipv4.vif_table,
 			   name, vif->bytes_in, vif->pkt_in,
 			   vif->bytes_out, vif->pkt_out,
 			   vif->flags, vif->local, vif->remote);
@@ -1864,9 +1862,9 @@ static int ipmr_mfc_seq_show(struct seq_file *seq, void *v)
 				   mfc->mfc_un.res.wrong_if);
 			for (n = mfc->mfc_un.res.minvif;
 			     n < mfc->mfc_un.res.maxvif; n++ ) {
-				if (VIF_EXISTS(n)
-				   && mfc->mfc_un.res.ttls[n] < 255)
-				seq_printf(seq,
+				if (VIF_EXISTS(&init_net, n) &&
+				    mfc->mfc_un.res.ttls[n] < 255)
+					seq_printf(seq,
 					   " %2d:%-3d",
 					   n, mfc->mfc_un.res.ttls[n]);
 			}
@@ -1913,6 +1911,29 @@ static struct net_protocol pim_protocol = {
 /*
  *	Setup for IP multicast routing
  */
+static int __net_init ipmr_net_init(struct net *net)
+{
+	int err = 0;
+
+	net->ipv4.vif_table = kcalloc(MAXVIFS, sizeof(struct vif_device),
+				      GFP_KERNEL);
+	if (!net->ipv4.vif_table) {
+		err = -ENOMEM;
+		goto fail;
+	}
+fail:
+	return err;
+}
+
+static void __net_exit ipmr_net_exit(struct net *net)
+{
+	kfree(net->ipv4.vif_table);
+}
+
+static struct pernet_operations ipmr_net_ops = {
+	.init = ipmr_net_init,
+	.exit = ipmr_net_exit,
+};
 
 int __init ip_mr_init(void)
 {
@@ -1925,6 +1946,10 @@ int __init ip_mr_init(void)
 	if (!mrt_cachep)
 		return -ENOMEM;
 
+	err = register_pernet_subsys(&ipmr_net_ops);
+	if (err)
+		goto reg_pernet_fail;
+
 	setup_timer(&ipmr_expire_timer, ipmr_expire_process, 0);
 	err = register_netdevice_notifier(&ip_mr_notifier);
 	if (err)
@@ -1945,6 +1970,8 @@ proc_vif_fail:
 #endif
 reg_notif_fail:
 	del_timer(&ipmr_expire_timer);
+	unregister_pernet_subsys(&ipmr_net_ops);
+reg_pernet_fail:
 	kmem_cache_destroy(mrt_cachep);
 	return err;
 }
-- 
cgit v1.2.3


From 5c0a66f5f3c9c59e2c341400048e2cff768e67a9 Mon Sep 17 00:00:00 2001
From: Benjamin Thery <benjamin.thery@bull.net>
Date: Thu, 22 Jan 2009 04:56:17 +0000
Subject: netns: ipmr: store netns in struct mfc_cache

This patch stores into struct mfc_cache the network namespace each
mfc_cache belongs to. The new member is mfc_net.

mfc_net is assigned at cache allocation and doesn't change during
the rest of the cache entry life.
A new net parameter is added to ipmr_cache_alloc/ipmr_cache_alloc_unres.

This will help to retrieve the current netns around the IPv4 multicast
routing code.

At the moment, all mfc_cache are allocated in init_net.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/mroute.h | 15 +++++++++++++++
 net/ipv4/ipmr.c        | 26 +++++++++++++++++---------
 2 files changed, 32 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index 8a455694d682..beaf3aae8aaf 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -193,6 +193,9 @@ struct vif_device
 struct mfc_cache 
 {
 	struct mfc_cache *next;			/* Next entry on cache line 	*/
+#ifdef CONFIG_NET_NS
+	struct net *mfc_net;
+#endif
 	__be32 mfc_mcastgrp;			/* Group the entry belongs to 	*/
 	__be32 mfc_origin;			/* Source of packet 		*/
 	vifi_t mfc_parent;			/* Source interface		*/
@@ -215,6 +218,18 @@ struct mfc_cache
 	} mfc_un;
 };
 
+static inline
+struct net *mfc_net(const struct mfc_cache *mfc)
+{
+	return read_pnet(&mfc->mfc_net);
+}
+
+static inline
+void mfc_net_set(struct mfc_cache *mfc, struct net *net)
+{
+	write_pnet(&mfc->mfc_net, hold_net(net));
+}
+
 #define MFC_STATIC		1
 #define MFC_NOTIFY		2
 
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 75a5f79cc226..8428a0fb5c10 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -327,6 +327,12 @@ static int vif_delete(int vifi, int notify)
 	return 0;
 }
 
+static inline void ipmr_cache_free(struct mfc_cache *c)
+{
+	release_net(mfc_net(c));
+	kmem_cache_free(mrt_cachep, c);
+}
+
 /* Destroy an unresolved cache entry, killing queued skbs
    and reporting error to netlink readers.
  */
@@ -353,7 +359,7 @@ static void ipmr_destroy_unres(struct mfc_cache *c)
 			kfree_skb(skb);
 	}
 
-	kmem_cache_free(mrt_cachep, c);
+	ipmr_cache_free(c);
 }
 
 
@@ -528,22 +534,24 @@ static struct mfc_cache *ipmr_cache_find(__be32 origin, __be32 mcastgrp)
 /*
  *	Allocate a multicast cache entry
  */
-static struct mfc_cache *ipmr_cache_alloc(void)
+static struct mfc_cache *ipmr_cache_alloc(struct net *net)
 {
 	struct mfc_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
 	if (c == NULL)
 		return NULL;
 	c->mfc_un.res.minvif = MAXVIFS;
+	mfc_net_set(c, net);
 	return c;
 }
 
-static struct mfc_cache *ipmr_cache_alloc_unres(void)
+static struct mfc_cache *ipmr_cache_alloc_unres(struct net *net)
 {
 	struct mfc_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_ATOMIC);
 	if (c == NULL)
 		return NULL;
 	skb_queue_head_init(&c->mfc_un.unres.unresolved);
 	c->mfc_un.unres.expires = jiffies + 10*HZ;
+	mfc_net_set(c, net);
 	return c;
 }
 
@@ -695,7 +703,7 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 		 */
 
 		if (atomic_read(&cache_resolve_queue_len) >= 10 ||
-		    (c=ipmr_cache_alloc_unres())==NULL) {
+		    (c = ipmr_cache_alloc_unres(&init_net)) == NULL) {
 			spin_unlock_bh(&mfc_unres_lock);
 
 			kfree_skb(skb);
@@ -718,7 +726,7 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 			 */
 			spin_unlock_bh(&mfc_unres_lock);
 
-			kmem_cache_free(mrt_cachep, c);
+			ipmr_cache_free(c);
 			kfree_skb(skb);
 			return err;
 		}
@@ -763,7 +771,7 @@ static int ipmr_mfc_delete(struct mfcctl *mfc)
 			*cp = c->next;
 			write_unlock_bh(&mrt_lock);
 
-			kmem_cache_free(mrt_cachep, c);
+			ipmr_cache_free(c);
 			return 0;
 		}
 	}
@@ -796,7 +804,7 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
 	if (!ipv4_is_multicast(mfc->mfcc_mcastgrp.s_addr))
 		return -EINVAL;
 
-	c = ipmr_cache_alloc();
+	c = ipmr_cache_alloc(&init_net);
 	if (c == NULL)
 		return -ENOMEM;
 
@@ -831,7 +839,7 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
 
 	if (uc) {
 		ipmr_cache_resolve(uc, c);
-		kmem_cache_free(mrt_cachep, uc);
+		ipmr_cache_free(uc);
 	}
 	return 0;
 }
@@ -868,7 +876,7 @@ static void mroute_clean_tables(struct sock *sk)
 			*cp = c->next;
 			write_unlock_bh(&mrt_lock);
 
-			kmem_cache_free(mrt_cachep, c);
+			ipmr_cache_free(c);
 		}
 	}
 
-- 
cgit v1.2.3


From 2bb8b26c3ea8bde1943dc5cd4dda2dc9f48fb281 Mon Sep 17 00:00:00 2001
From: Benjamin Thery <benjamin.thery@bull.net>
Date: Thu, 22 Jan 2009 04:56:18 +0000
Subject: netns: ipmr: dynamically allocate mfc_cache_array

Preliminary work to make IPv4 multicast routing netns-aware.

Dynamically allocate IPv4 multicast forwarding cache, mfc_cache_array,
and move it to struct netns_ipv4.

At the moment, mfc_cache_array is only referenced in init_net.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netns/ipv4.h |  1 +
 net/ipv4/ipmr.c          | 41 ++++++++++++++++++++++++++++-------------
 2 files changed, 29 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index edbcccbbc318..0b4285ac29d4 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -57,6 +57,7 @@ struct netns_ipv4 {
 
 #ifdef CONFIG_IP_MROUTE
 	struct sock		*mroute_sk;
+	struct mfc_cache	**mfc_cache_array;
 	struct vif_device	*vif_table;
 	int			maxvif;
 #endif
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 8428a0fb5c10..35b868dd3bfd 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -82,8 +82,6 @@ static DEFINE_RWLOCK(mrt_lock);
 static int mroute_do_assert;				/* Set in PIM assert	*/
 static int mroute_do_pim;
 
-static struct mfc_cache *mfc_cache_array[MFC_LINES];	/* Forwarding cache	*/
-
 static struct mfc_cache *mfc_unres_queue;		/* Queue of unresolved entries */
 static atomic_t cache_resolve_queue_len;		/* Size of unresolved	*/
 
@@ -524,7 +522,7 @@ static struct mfc_cache *ipmr_cache_find(__be32 origin, __be32 mcastgrp)
 	int line = MFC_HASH(mcastgrp, origin);
 	struct mfc_cache *c;
 
-	for (c=mfc_cache_array[line]; c; c = c->next) {
+	for (c = init_net.ipv4.mfc_cache_array[line]; c; c = c->next) {
 		if (c->mfc_origin==origin && c->mfc_mcastgrp==mcastgrp)
 			break;
 	}
@@ -764,7 +762,8 @@ static int ipmr_mfc_delete(struct mfcctl *mfc)
 
 	line = MFC_HASH(mfc->mfcc_mcastgrp.s_addr, mfc->mfcc_origin.s_addr);
 
-	for (cp=&mfc_cache_array[line]; (c=*cp) != NULL; cp = &c->next) {
+	for (cp = &init_net.ipv4.mfc_cache_array[line];
+	     (c = *cp) != NULL; cp = &c->next) {
 		if (c->mfc_origin == mfc->mfcc_origin.s_addr &&
 		    c->mfc_mcastgrp == mfc->mfcc_mcastgrp.s_addr) {
 			write_lock_bh(&mrt_lock);
@@ -785,7 +784,8 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
 
 	line = MFC_HASH(mfc->mfcc_mcastgrp.s_addr, mfc->mfcc_origin.s_addr);
 
-	for (cp=&mfc_cache_array[line]; (c=*cp) != NULL; cp = &c->next) {
+	for (cp = &init_net.ipv4.mfc_cache_array[line];
+	     (c = *cp) != NULL; cp = &c->next) {
 		if (c->mfc_origin == mfc->mfcc_origin.s_addr &&
 		    c->mfc_mcastgrp == mfc->mfcc_mcastgrp.s_addr)
 			break;
@@ -816,8 +816,8 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
 		c->mfc_flags |= MFC_STATIC;
 
 	write_lock_bh(&mrt_lock);
-	c->next = mfc_cache_array[line];
-	mfc_cache_array[line] = c;
+	c->next = init_net.ipv4.mfc_cache_array[line];
+	init_net.ipv4.mfc_cache_array[line] = c;
 	write_unlock_bh(&mrt_lock);
 
 	/*
@@ -866,7 +866,7 @@ static void mroute_clean_tables(struct sock *sk)
 	for (i=0; i<MFC_LINES; i++) {
 		struct mfc_cache *c, **cp;
 
-		cp = &mfc_cache_array[i];
+		cp = &init_net.ipv4.mfc_cache_array[i];
 		while ((c = *cp) != NULL) {
 			if (c->mfc_flags&MFC_STATIC) {
 				cp = &c->next;
@@ -1767,10 +1767,11 @@ static struct mfc_cache *ipmr_mfc_seq_idx(struct ipmr_mfc_iter *it, loff_t pos)
 {
 	struct mfc_cache *mfc;
 
-	it->cache = mfc_cache_array;
+	it->cache = init_net.ipv4.mfc_cache_array;
 	read_lock(&mrt_lock);
 	for (it->ct = 0; it->ct < MFC_LINES; it->ct++)
-		for (mfc = mfc_cache_array[it->ct]; mfc; mfc = mfc->next)
+		for (mfc = init_net.ipv4.mfc_cache_array[it->ct];
+		     mfc; mfc = mfc->next)
 			if (pos-- == 0)
 				return mfc;
 	read_unlock(&mrt_lock);
@@ -1812,10 +1813,10 @@ static void *ipmr_mfc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 	if (it->cache == &mfc_unres_queue)
 		goto end_of_list;
 
-	BUG_ON(it->cache != mfc_cache_array);
+	BUG_ON(it->cache != init_net.ipv4.mfc_cache_array);
 
 	while (++it->ct < MFC_LINES) {
-		mfc = mfc_cache_array[it->ct];
+		mfc = init_net.ipv4.mfc_cache_array[it->ct];
 		if (mfc)
 			return mfc;
 	}
@@ -1843,7 +1844,7 @@ static void ipmr_mfc_seq_stop(struct seq_file *seq, void *v)
 
 	if (it->cache == &mfc_unres_queue)
 		spin_unlock_bh(&mfc_unres_lock);
-	else if (it->cache == mfc_cache_array)
+	else if (it->cache == init_net.ipv4.mfc_cache_array)
 		read_unlock(&mrt_lock);
 }
 
@@ -1929,12 +1930,26 @@ static int __net_init ipmr_net_init(struct net *net)
 		err = -ENOMEM;
 		goto fail;
 	}
+
+	/* Forwarding cache */
+	net->ipv4.mfc_cache_array = kcalloc(MFC_LINES,
+					    sizeof(struct mfc_cache *),
+					    GFP_KERNEL);
+	if (!net->ipv4.mfc_cache_array) {
+		err = -ENOMEM;
+		goto fail_mfc_cache;
+	}
+	return 0;
+
+fail_mfc_cache:
+	kfree(net->ipv4.vif_table);
 fail:
 	return err;
 }
 
 static void __net_exit ipmr_net_exit(struct net *net)
 {
+	kfree(net->ipv4.mfc_cache_array);
 	kfree(net->ipv4.vif_table);
 }
 
-- 
cgit v1.2.3


From 1e8fb3b6a4ac6c5e486298d88289038456957545 Mon Sep 17 00:00:00 2001
From: Benjamin Thery <benjamin.thery@bull.net>
Date: Thu, 22 Jan 2009 04:56:19 +0000
Subject: netns: ipmr: declare counter cache_resolve_queue_len per-namespace

Preliminary work to make IPv4 multicast routing netns-aware.

Declare variable cache_resolve_queue_len per-namespace: move it into
struct netns_ipv4.

This variable counts the number of unresolved cache entries queued in the
list mfc_unres_queue. This list is kept global to all netns as the number
of entries per namespace is limited to 10 (hardcoded in routine
ipmr_cache_unresolved).
Entries belonging to different namespaces in mfc_unres_queue will be
identified by matching the mfc_net member introduced previously in
struct mfc_cache.

Keeping this list global to all netns, also allows us to keep a single
timer (ipmr_expire_timer) to handle their expiration.
In some places cache_resolve_queue_len value was tested for arming
or deleting the timer. These tests were equivalent to testing
mfc_unres_queue value instead and are replaced in this patch.

At the moment, cache_resolve_queue_len is only referenced in init_net.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netns/ipv4.h |  1 +
 net/ipv4/ipmr.c          | 39 +++++++++++++++++++++------------------
 2 files changed, 22 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 0b4285ac29d4..90b7cd20aa69 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -60,6 +60,7 @@ struct netns_ipv4 {
 	struct mfc_cache	**mfc_cache_array;
 	struct vif_device	*vif_table;
 	int			maxvif;
+	atomic_t		cache_resolve_queue_len;
 #endif
 };
 #endif
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 35b868dd3bfd..feafd14eb7b9 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -83,7 +83,6 @@ static int mroute_do_assert;				/* Set in PIM assert	*/
 static int mroute_do_pim;
 
 static struct mfc_cache *mfc_unres_queue;		/* Queue of unresolved entries */
-static atomic_t cache_resolve_queue_len;		/* Size of unresolved	*/
 
 /* Special spinlock for queue of unresolved entries */
 static DEFINE_SPINLOCK(mfc_unres_lock);
@@ -340,7 +339,7 @@ static void ipmr_destroy_unres(struct mfc_cache *c)
 	struct sk_buff *skb;
 	struct nlmsgerr *e;
 
-	atomic_dec(&cache_resolve_queue_len);
+	atomic_dec(&init_net.ipv4.cache_resolve_queue_len);
 
 	while ((skb = skb_dequeue(&c->mfc_un.unres.unresolved))) {
 		if (ip_hdr(skb)->version == 0) {
@@ -374,7 +373,7 @@ static void ipmr_expire_process(unsigned long dummy)
 		return;
 	}
 
-	if (atomic_read(&cache_resolve_queue_len) == 0)
+	if (mfc_unres_queue == NULL)
 		goto out;
 
 	now = jiffies;
@@ -395,7 +394,7 @@ static void ipmr_expire_process(unsigned long dummy)
 		ipmr_destroy_unres(c);
 	}
 
-	if (atomic_read(&cache_resolve_queue_len))
+	if (mfc_unres_queue != NULL)
 		mod_timer(&ipmr_expire_timer, jiffies + expires);
 
 out:
@@ -690,7 +689,8 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 
 	spin_lock_bh(&mfc_unres_lock);
 	for (c=mfc_unres_queue; c; c=c->next) {
-		if (c->mfc_mcastgrp == iph->daddr &&
+		if (net_eq(mfc_net(c), &init_net) &&
+		    c->mfc_mcastgrp == iph->daddr &&
 		    c->mfc_origin == iph->saddr)
 			break;
 	}
@@ -700,7 +700,7 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 		 *	Create a new entry if allowable
 		 */
 
-		if (atomic_read(&cache_resolve_queue_len) >= 10 ||
+		if (atomic_read(&init_net.ipv4.cache_resolve_queue_len) >= 10 ||
 		    (c = ipmr_cache_alloc_unres(&init_net)) == NULL) {
 			spin_unlock_bh(&mfc_unres_lock);
 
@@ -729,7 +729,7 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 			return err;
 		}
 
-		atomic_inc(&cache_resolve_queue_len);
+		atomic_inc(&init_net.ipv4.cache_resolve_queue_len);
 		c->next = mfc_unres_queue;
 		mfc_unres_queue = c;
 
@@ -827,14 +827,16 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
 	spin_lock_bh(&mfc_unres_lock);
 	for (cp = &mfc_unres_queue; (uc=*cp) != NULL;
 	     cp = &uc->next) {
-		if (uc->mfc_origin == c->mfc_origin &&
+		if (net_eq(mfc_net(uc), &init_net) &&
+		    uc->mfc_origin == c->mfc_origin &&
 		    uc->mfc_mcastgrp == c->mfc_mcastgrp) {
 			*cp = uc->next;
-			if (atomic_dec_and_test(&cache_resolve_queue_len))
-				del_timer(&ipmr_expire_timer);
+			atomic_dec(&init_net.ipv4.cache_resolve_queue_len);
 			break;
 		}
 	}
+	if (mfc_unres_queue == NULL)
+		del_timer(&ipmr_expire_timer);
 	spin_unlock_bh(&mfc_unres_lock);
 
 	if (uc) {
@@ -880,18 +882,19 @@ static void mroute_clean_tables(struct sock *sk)
 		}
 	}
 
-	if (atomic_read(&cache_resolve_queue_len) != 0) {
-		struct mfc_cache *c;
+	if (atomic_read(&init_net.ipv4.cache_resolve_queue_len) != 0) {
+		struct mfc_cache *c, **cp;
 
 		spin_lock_bh(&mfc_unres_lock);
-		while (mfc_unres_queue != NULL) {
-			c = mfc_unres_queue;
-			mfc_unres_queue = c->next;
-			spin_unlock_bh(&mfc_unres_lock);
+		cp = &mfc_unres_queue;
+		while ((c = *cp) != NULL) {
+			if (!net_eq(mfc_net(c), &init_net)) {
+				cp = &c->next;
+				continue;
+			}
+			*cp = c->next;
 
 			ipmr_destroy_unres(c);
-
-			spin_lock_bh(&mfc_unres_lock);
 		}
 		spin_unlock_bh(&mfc_unres_lock);
 	}
-- 
cgit v1.2.3


From 6f9374a9342e896c68df7cf7c0b039ab5cca994c Mon Sep 17 00:00:00 2001
From: Benjamin Thery <benjamin.thery@bull.net>
Date: Thu, 22 Jan 2009 04:56:20 +0000
Subject: netns: ipmr: declare mroute_do_assert and mroute_do_pim per-namespace

Preliminary work to make IPv4 multicast routing netns-aware.

Declare IPv multicast routing variables 'mroute_do_assert' and
'mroute_do_pim' per-namespace in struct netns_ipv4.

At the moment, these variables are only referenced in init_net.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netns/ipv4.h |  2 ++
 net/ipv4/ipmr.c          | 24 +++++++++++-------------
 2 files changed, 13 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 90b7cd20aa69..8451722782bb 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -61,6 +61,8 @@ struct netns_ipv4 {
 	struct vif_device	*vif_table;
 	int			maxvif;
 	atomic_t		cache_resolve_queue_len;
+	int			mroute_do_assert;
+	int			mroute_do_pim;
 #endif
 };
 #endif
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index feafd14eb7b9..d6a28acc0683 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -79,9 +79,6 @@ static DEFINE_RWLOCK(mrt_lock);
 
 #define VIF_EXISTS(_net, _idx) ((_net)->ipv4.vif_table[_idx].dev != NULL)
 
-static int mroute_do_assert;				/* Set in PIM assert	*/
-static int mroute_do_pim;
-
 static struct mfc_cache *mfc_unres_queue;		/* Queue of unresolved entries */
 
 /* Special spinlock for queue of unresolved entries */
@@ -1003,7 +1000,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 		int v;
 		if (get_user(v,(int __user *)optval))
 			return -EFAULT;
-		mroute_do_assert=(v)?1:0;
+		init_net.ipv4.mroute_do_assert = (v) ? 1 : 0;
 		return 0;
 	}
 #ifdef CONFIG_IP_PIMSM
@@ -1017,11 +1014,11 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 
 		rtnl_lock();
 		ret = 0;
-		if (v != mroute_do_pim) {
-			mroute_do_pim = v;
-			mroute_do_assert = v;
+		if (v != init_net.ipv4.mroute_do_pim) {
+			init_net.ipv4.mroute_do_pim = v;
+			init_net.ipv4.mroute_do_assert = v;
 #ifdef CONFIG_IP_PIMSM_V2
-			if (mroute_do_pim)
+			if (init_net.ipv4.mroute_do_pim)
 				ret = inet_add_protocol(&pim_protocol,
 							IPPROTO_PIM);
 			else
@@ -1073,10 +1070,10 @@ int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int
 		val = 0x0305;
 #ifdef CONFIG_IP_PIMSM
 	else if (optname == MRT_PIM)
-		val = mroute_do_pim;
+		val = init_net.ipv4.mroute_do_pim;
 #endif
 	else
-		val = mroute_do_assert;
+		val = init_net.ipv4.mroute_do_assert;
 	if (copy_to_user(optval, &val, olr))
 		return -EFAULT;
 	return 0;
@@ -1356,13 +1353,14 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
 		cache->mfc_un.res.wrong_if++;
 		true_vifi = ipmr_find_vif(skb->dev);
 
-		if (true_vifi >= 0 && mroute_do_assert &&
+		if (true_vifi >= 0 && init_net.ipv4.mroute_do_assert &&
 		    /* pimsm uses asserts, when switching from RPT to SPT,
 		       so that we cannot check that packet arrived on an oif.
 		       It is bad, but otherwise we would need to move pretty
 		       large chunk of pimd to kernel. Ough... --ANK
 		     */
-		    (mroute_do_pim || cache->mfc_un.res.ttls[true_vifi] < 255) &&
+		    (init_net.ipv4.mroute_do_pim ||
+		     cache->mfc_un.res.ttls[true_vifi] < 255) &&
 		    time_after(jiffies,
 			       cache->mfc_un.res.last_assert + MFC_ASSERT_THRESH)) {
 			cache->mfc_un.res.last_assert = jiffies;
@@ -1550,7 +1548,7 @@ int pim_rcv_v1(struct sk_buff * skb)
 
 	pim = igmp_hdr(skb);
 
-	if (!mroute_do_pim ||
+	if (!init_net.ipv4.mroute_do_pim ||
 	    pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER)
 		goto drop;
 
-- 
cgit v1.2.3


From 6c5143dbcfe50ac722965dc7d096abbeeec8bb33 Mon Sep 17 00:00:00 2001
From: Benjamin Thery <benjamin.thery@bull.net>
Date: Thu, 22 Jan 2009 04:56:21 +0000
Subject: netns: ipmr: declare reg_vif_num per-namespace

Preliminary work to make IPv4 multicast routing netns-aware.

Declare variable 'reg_vif_num' per-namespace, move into struct netns_ipv4.

At the moment, this variable is only referenced in init_net.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netns/ipv4.h |  3 +++
 net/ipv4/ipmr.c          | 22 ++++++++++++----------
 2 files changed, 15 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 8451722782bb..2eb3814d6258 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -63,6 +63,9 @@ struct netns_ipv4 {
 	atomic_t		cache_resolve_queue_len;
 	int			mroute_do_assert;
 	int			mroute_do_pim;
+#if defined(CONFIG_IP_PIMSM_V1) || defined(CONFIG_IP_PIMSM_V2)
+	int			mroute_reg_vif_num;
+#endif
 #endif
 };
 #endif
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index d6a28acc0683..346e67b50d6c 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -197,14 +197,12 @@ failure:
 
 #ifdef CONFIG_IP_PIMSM
 
-static int reg_vif_num = -1;
-
 static int reg_vif_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	read_lock(&mrt_lock);
 	dev->stats.tx_bytes += skb->len;
 	dev->stats.tx_packets++;
-	ipmr_cache_report(skb, reg_vif_num, IGMPMSG_WHOLEPKT);
+	ipmr_cache_report(skb, init_net.ipv4.mroute_reg_vif_num, IGMPMSG_WHOLEPKT);
 	read_unlock(&mrt_lock);
 	kfree_skb(skb);
 	return 0;
@@ -292,8 +290,8 @@ static int vif_delete(int vifi, int notify)
 	}
 
 #ifdef CONFIG_IP_PIMSM
-	if (vifi == reg_vif_num)
-		reg_vif_num = -1;
+	if (vifi == init_net.ipv4.mroute_reg_vif_num)
+		init_net.ipv4.mroute_reg_vif_num = -1;
 #endif
 
 	if (vifi+1 == init_net.ipv4.maxvif) {
@@ -439,7 +437,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 		 * Special Purpose VIF in PIM
 		 * All the packets will be sent to the daemon
 		 */
-		if (reg_vif_num >= 0)
+		if (init_net.ipv4.mroute_reg_vif_num >= 0)
 			return -EADDRINUSE;
 		dev = ipmr_reg_vif();
 		if (!dev)
@@ -505,7 +503,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 	v->dev = dev;
 #ifdef CONFIG_IP_PIMSM
 	if (v->flags&VIFF_REGISTER)
-		reg_vif_num = vifi;
+		init_net.ipv4.mroute_reg_vif_num = vifi;
 #endif
 	if (vifi+1 > init_net.ipv4.maxvif)
 		init_net.ipv4.maxvif = vifi+1;
@@ -623,7 +621,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
 		memcpy(msg, skb_network_header(pkt), sizeof(struct iphdr));
 		msg->im_msgtype = IGMPMSG_WHOLEPKT;
 		msg->im_mbz = 0;
-		msg->im_vif = reg_vif_num;
+		msg->im_vif = init_net.ipv4.mroute_reg_vif_num;
 		ip_hdr(skb)->ihl = sizeof(struct iphdr) >> 2;
 		ip_hdr(skb)->tot_len = htons(ntohs(ip_hdr(pkt)->tot_len) +
 					     sizeof(struct iphdr));
@@ -1506,8 +1504,8 @@ static int __pim_rcv(struct sk_buff *skb, unsigned int pimlen)
 		return 1;
 
 	read_lock(&mrt_lock);
-	if (reg_vif_num >= 0)
-		reg_dev = init_net.ipv4.vif_table[reg_vif_num].dev;
+	if (init_net.ipv4.mroute_reg_vif_num >= 0)
+		reg_dev = init_net.ipv4.vif_table[init_net.ipv4.mroute_reg_vif_num].dev;
 	if (reg_dev)
 		dev_hold(reg_dev);
 	read_unlock(&mrt_lock);
@@ -1940,6 +1938,10 @@ static int __net_init ipmr_net_init(struct net *net)
 		err = -ENOMEM;
 		goto fail_mfc_cache;
 	}
+
+#ifdef CONFIG_IP_PIMSM
+	net->ipv4.mroute_reg_vif_num = -1;
+#endif
 	return 0;
 
 fail_mfc_cache:
-- 
cgit v1.2.3


From 4feb88e5c694bfe414cbc3ce0e383f7f7038f90b Mon Sep 17 00:00:00 2001
From: Benjamin Thery <benjamin.thery@bull.net>
Date: Thu, 22 Jan 2009 04:56:23 +0000
Subject: netns: ipmr: enable namespace support in ipv4 multicast routing code

This last patch makes the appropriate changes to use and propagate the
network namespace where needed in IPv4 multicast routing code.

This consists mainly in replacing all the remaining init_net occurences
with current netns pointer retrieved from sockets, net devices or
mfc_caches depending on the routines' contexts.

Some routines receive a new 'struct net' parameter to propagate the current
netns:
* vif_add/vif_delete
* ipmr_new_tunnel
* mroute_clean_tables
* ipmr_cache_find
* ipmr_cache_report
* ipmr_cache_unresolved
* ipmr_mfc_add/ipmr_mfc_delete
* ipmr_get_route
* rt_fill_info (in route.c)

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/mroute.h |   3 +-
 net/ipv4/ipmr.c        | 243 +++++++++++++++++++++++++++----------------------
 net/ipv4/route.c       |  11 ++-
 3 files changed, 143 insertions(+), 114 deletions(-)

(limited to 'include')

diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index beaf3aae8aaf..0d45b4e8d367 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -256,7 +256,8 @@ void mfc_net_set(struct mfc_cache *mfc, struct net *net)
 
 #ifdef __KERNEL__
 struct rtmsg;
-extern int ipmr_get_route(struct sk_buff *skb, struct rtmsg *rtm, int nowait);
+extern int ipmr_get_route(struct net *net, struct sk_buff *skb,
+			  struct rtmsg *rtm, int nowait);
 #endif
 
 #endif
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index a4fd97f1920c..21a6dc710f20 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -95,7 +95,8 @@ static DEFINE_SPINLOCK(mfc_unres_lock);
 static struct kmem_cache *mrt_cachep __read_mostly;
 
 static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local);
-static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert);
+static int ipmr_cache_report(struct net *net,
+			     struct sk_buff *pkt, vifi_t vifi, int assert);
 static int ipmr_fill_mroute(struct sk_buff *skb, struct mfc_cache *c, struct rtmsg *rtm);
 
 #ifdef CONFIG_IP_PIMSM_V2
@@ -108,9 +109,11 @@ static struct timer_list ipmr_expire_timer;
 
 static void ipmr_del_tunnel(struct net_device *dev, struct vifctl *v)
 {
+	struct net *net = dev_net(dev);
+
 	dev_close(dev);
 
-	dev = __dev_get_by_name(&init_net, "tunl0");
+	dev = __dev_get_by_name(net, "tunl0");
 	if (dev) {
 		const struct net_device_ops *ops = dev->netdev_ops;
 		struct ifreq ifr;
@@ -136,11 +139,11 @@ static void ipmr_del_tunnel(struct net_device *dev, struct vifctl *v)
 }
 
 static
-struct net_device *ipmr_new_tunnel(struct vifctl *v)
+struct net_device *ipmr_new_tunnel(struct net *net, struct vifctl *v)
 {
 	struct net_device  *dev;
 
-	dev = __dev_get_by_name(&init_net, "tunl0");
+	dev = __dev_get_by_name(net, "tunl0");
 
 	if (dev) {
 		const struct net_device_ops *ops = dev->netdev_ops;
@@ -169,7 +172,8 @@ struct net_device *ipmr_new_tunnel(struct vifctl *v)
 
 		dev = NULL;
 
-		if (err == 0 && (dev = __dev_get_by_name(&init_net, p.name)) != NULL) {
+		if (err == 0 &&
+		    (dev = __dev_get_by_name(net, p.name)) != NULL) {
 			dev->flags |= IFF_MULTICAST;
 
 			in_dev = __in_dev_get_rtnl(dev);
@@ -199,10 +203,13 @@ failure:
 
 static int reg_vif_xmit(struct sk_buff *skb, struct net_device *dev)
 {
+	struct net *net = dev_net(dev);
+
 	read_lock(&mrt_lock);
 	dev->stats.tx_bytes += skb->len;
 	dev->stats.tx_packets++;
-	ipmr_cache_report(skb, init_net.ipv4.mroute_reg_vif_num, IGMPMSG_WHOLEPKT);
+	ipmr_cache_report(net, skb, net->ipv4.mroute_reg_vif_num,
+			  IGMPMSG_WHOLEPKT);
 	read_unlock(&mrt_lock);
 	kfree_skb(skb);
 	return 0;
@@ -269,16 +276,16 @@ failure:
  *	@notify: Set to 1, if the caller is a notifier_call
  */
 
-static int vif_delete(int vifi, int notify)
+static int vif_delete(struct net *net, int vifi, int notify)
 {
 	struct vif_device *v;
 	struct net_device *dev;
 	struct in_device *in_dev;
 
-	if (vifi < 0 || vifi >= init_net.ipv4.maxvif)
+	if (vifi < 0 || vifi >= net->ipv4.maxvif)
 		return -EADDRNOTAVAIL;
 
-	v = &init_net.ipv4.vif_table[vifi];
+	v = &net->ipv4.vif_table[vifi];
 
 	write_lock_bh(&mrt_lock);
 	dev = v->dev;
@@ -290,17 +297,17 @@ static int vif_delete(int vifi, int notify)
 	}
 
 #ifdef CONFIG_IP_PIMSM
-	if (vifi == init_net.ipv4.mroute_reg_vif_num)
-		init_net.ipv4.mroute_reg_vif_num = -1;
+	if (vifi == net->ipv4.mroute_reg_vif_num)
+		net->ipv4.mroute_reg_vif_num = -1;
 #endif
 
-	if (vifi+1 == init_net.ipv4.maxvif) {
+	if (vifi+1 == net->ipv4.maxvif) {
 		int tmp;
 		for (tmp=vifi-1; tmp>=0; tmp--) {
-			if (VIF_EXISTS(&init_net, tmp))
+			if (VIF_EXISTS(net, tmp))
 				break;
 		}
-		init_net.ipv4.maxvif = tmp+1;
+		net->ipv4.maxvif = tmp+1;
 	}
 
 	write_unlock_bh(&mrt_lock);
@@ -333,8 +340,9 @@ static void ipmr_destroy_unres(struct mfc_cache *c)
 {
 	struct sk_buff *skb;
 	struct nlmsgerr *e;
+	struct net *net = mfc_net(c);
 
-	atomic_dec(&init_net.ipv4.cache_resolve_queue_len);
+	atomic_dec(&net->ipv4.cache_resolve_queue_len);
 
 	while ((skb = skb_dequeue(&c->mfc_un.unres.unresolved))) {
 		if (ip_hdr(skb)->version == 0) {
@@ -346,7 +354,7 @@ static void ipmr_destroy_unres(struct mfc_cache *c)
 			e->error = -ETIMEDOUT;
 			memset(&e->msg, 0, sizeof(e->msg));
 
-			rtnl_unicast(skb, &init_net, NETLINK_CB(skb).pid);
+			rtnl_unicast(skb, net, NETLINK_CB(skb).pid);
 		} else
 			kfree_skb(skb);
 	}
@@ -401,13 +409,14 @@ out:
 static void ipmr_update_thresholds(struct mfc_cache *cache, unsigned char *ttls)
 {
 	int vifi;
+	struct net *net = mfc_net(cache);
 
 	cache->mfc_un.res.minvif = MAXVIFS;
 	cache->mfc_un.res.maxvif = 0;
 	memset(cache->mfc_un.res.ttls, 255, MAXVIFS);
 
-	for (vifi = 0; vifi < init_net.ipv4.maxvif; vifi++) {
-		if (VIF_EXISTS(&init_net, vifi) &&
+	for (vifi = 0; vifi < net->ipv4.maxvif; vifi++) {
+		if (VIF_EXISTS(net, vifi) &&
 		    ttls[vifi] && ttls[vifi] < 255) {
 			cache->mfc_un.res.ttls[vifi] = ttls[vifi];
 			if (cache->mfc_un.res.minvif > vifi)
@@ -418,16 +427,16 @@ static void ipmr_update_thresholds(struct mfc_cache *cache, unsigned char *ttls)
 	}
 }
 
-static int vif_add(struct vifctl *vifc, int mrtsock)
+static int vif_add(struct net *net, struct vifctl *vifc, int mrtsock)
 {
 	int vifi = vifc->vifc_vifi;
-	struct vif_device *v = &init_net.ipv4.vif_table[vifi];
+	struct vif_device *v = &net->ipv4.vif_table[vifi];
 	struct net_device *dev;
 	struct in_device *in_dev;
 	int err;
 
 	/* Is vif busy ? */
-	if (VIF_EXISTS(&init_net, vifi))
+	if (VIF_EXISTS(net, vifi))
 		return -EADDRINUSE;
 
 	switch (vifc->vifc_flags) {
@@ -437,7 +446,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 		 * Special Purpose VIF in PIM
 		 * All the packets will be sent to the daemon
 		 */
-		if (init_net.ipv4.mroute_reg_vif_num >= 0)
+		if (net->ipv4.mroute_reg_vif_num >= 0)
 			return -EADDRINUSE;
 		dev = ipmr_reg_vif();
 		if (!dev)
@@ -451,7 +460,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 		break;
 #endif
 	case VIFF_TUNNEL:
-		dev = ipmr_new_tunnel(vifc);
+		dev = ipmr_new_tunnel(net, vifc);
 		if (!dev)
 			return -ENOBUFS;
 		err = dev_set_allmulti(dev, 1);
@@ -462,7 +471,7 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 		}
 		break;
 	case 0:
-		dev = ip_dev_find(&init_net, vifc->vifc_lcl_addr.s_addr);
+		dev = ip_dev_find(net, vifc->vifc_lcl_addr.s_addr);
 		if (!dev)
 			return -EADDRNOTAVAIL;
 		err = dev_set_allmulti(dev, 1);
@@ -503,20 +512,22 @@ static int vif_add(struct vifctl *vifc, int mrtsock)
 	v->dev = dev;
 #ifdef CONFIG_IP_PIMSM
 	if (v->flags&VIFF_REGISTER)
-		init_net.ipv4.mroute_reg_vif_num = vifi;
+		net->ipv4.mroute_reg_vif_num = vifi;
 #endif
-	if (vifi+1 > init_net.ipv4.maxvif)
-		init_net.ipv4.maxvif = vifi+1;
+	if (vifi+1 > net->ipv4.maxvif)
+		net->ipv4.maxvif = vifi+1;
 	write_unlock_bh(&mrt_lock);
 	return 0;
 }
 
-static struct mfc_cache *ipmr_cache_find(__be32 origin, __be32 mcastgrp)
+static struct mfc_cache *ipmr_cache_find(struct net *net,
+					 __be32 origin,
+					 __be32 mcastgrp)
 {
 	int line = MFC_HASH(mcastgrp, origin);
 	struct mfc_cache *c;
 
-	for (c = init_net.ipv4.mfc_cache_array[line]; c; c = c->next) {
+	for (c = net->ipv4.mfc_cache_array[line]; c; c = c->next) {
 		if (c->mfc_origin==origin && c->mfc_mcastgrp==mcastgrp)
 			break;
 	}
@@ -576,7 +587,7 @@ static void ipmr_cache_resolve(struct mfc_cache *uc, struct mfc_cache *c)
 				memset(&e->msg, 0, sizeof(e->msg));
 			}
 
-			rtnl_unicast(skb, &init_net, NETLINK_CB(skb).pid);
+			rtnl_unicast(skb, mfc_net(c), NETLINK_CB(skb).pid);
 		} else
 			ip_mr_forward(skb, c, 0);
 	}
@@ -589,7 +600,8 @@ static void ipmr_cache_resolve(struct mfc_cache *uc, struct mfc_cache *c)
  *	Called under mrt_lock.
  */
 
-static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
+static int ipmr_cache_report(struct net *net,
+			     struct sk_buff *pkt, vifi_t vifi, int assert)
 {
 	struct sk_buff *skb;
 	const int ihl = ip_hdrlen(pkt);
@@ -621,7 +633,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
 		memcpy(msg, skb_network_header(pkt), sizeof(struct iphdr));
 		msg->im_msgtype = IGMPMSG_WHOLEPKT;
 		msg->im_mbz = 0;
-		msg->im_vif = init_net.ipv4.mroute_reg_vif_num;
+		msg->im_vif = net->ipv4.mroute_reg_vif_num;
 		ip_hdr(skb)->ihl = sizeof(struct iphdr) >> 2;
 		ip_hdr(skb)->tot_len = htons(ntohs(ip_hdr(pkt)->tot_len) +
 					     sizeof(struct iphdr));
@@ -653,7 +665,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
 	skb->transport_header = skb->network_header;
 	}
 
-	if (init_net.ipv4.mroute_sk == NULL) {
+	if (net->ipv4.mroute_sk == NULL) {
 		kfree_skb(skb);
 		return -EINVAL;
 	}
@@ -661,7 +673,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
 	/*
 	 *	Deliver to mrouted
 	 */
-	ret = sock_queue_rcv_skb(init_net.ipv4.mroute_sk, skb);
+	ret = sock_queue_rcv_skb(net->ipv4.mroute_sk, skb);
 	if (ret < 0) {
 		if (net_ratelimit())
 			printk(KERN_WARNING "mroute: pending queue full, dropping entries.\n");
@@ -676,7 +688,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
  */
 
 static int
-ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
+ipmr_cache_unresolved(struct net *net, vifi_t vifi, struct sk_buff *skb)
 {
 	int err;
 	struct mfc_cache *c;
@@ -684,7 +696,7 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 
 	spin_lock_bh(&mfc_unres_lock);
 	for (c=mfc_unres_queue; c; c=c->next) {
-		if (net_eq(mfc_net(c), &init_net) &&
+		if (net_eq(mfc_net(c), net) &&
 		    c->mfc_mcastgrp == iph->daddr &&
 		    c->mfc_origin == iph->saddr)
 			break;
@@ -695,8 +707,8 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 		 *	Create a new entry if allowable
 		 */
 
-		if (atomic_read(&init_net.ipv4.cache_resolve_queue_len) >= 10 ||
-		    (c = ipmr_cache_alloc_unres(&init_net)) == NULL) {
+		if (atomic_read(&net->ipv4.cache_resolve_queue_len) >= 10 ||
+		    (c = ipmr_cache_alloc_unres(net)) == NULL) {
 			spin_unlock_bh(&mfc_unres_lock);
 
 			kfree_skb(skb);
@@ -713,7 +725,8 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 		/*
 		 *	Reflect first query at mrouted.
 		 */
-		if ((err = ipmr_cache_report(skb, vifi, IGMPMSG_NOCACHE))<0) {
+		err = ipmr_cache_report(net, skb, vifi, IGMPMSG_NOCACHE);
+		if (err < 0) {
 			/* If the report failed throw the cache entry
 			   out - Brad Parker
 			 */
@@ -724,7 +737,7 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
 			return err;
 		}
 
-		atomic_inc(&init_net.ipv4.cache_resolve_queue_len);
+		atomic_inc(&net->ipv4.cache_resolve_queue_len);
 		c->next = mfc_unres_queue;
 		mfc_unres_queue = c;
 
@@ -750,14 +763,14 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
  *	MFC cache manipulation by user space mroute daemon
  */
 
-static int ipmr_mfc_delete(struct mfcctl *mfc)
+static int ipmr_mfc_delete(struct net *net, struct mfcctl *mfc)
 {
 	int line;
 	struct mfc_cache *c, **cp;
 
 	line = MFC_HASH(mfc->mfcc_mcastgrp.s_addr, mfc->mfcc_origin.s_addr);
 
-	for (cp = &init_net.ipv4.mfc_cache_array[line];
+	for (cp = &net->ipv4.mfc_cache_array[line];
 	     (c = *cp) != NULL; cp = &c->next) {
 		if (c->mfc_origin == mfc->mfcc_origin.s_addr &&
 		    c->mfc_mcastgrp == mfc->mfcc_mcastgrp.s_addr) {
@@ -772,14 +785,14 @@ static int ipmr_mfc_delete(struct mfcctl *mfc)
 	return -ENOENT;
 }
 
-static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
+static int ipmr_mfc_add(struct net *net, struct mfcctl *mfc, int mrtsock)
 {
 	int line;
 	struct mfc_cache *uc, *c, **cp;
 
 	line = MFC_HASH(mfc->mfcc_mcastgrp.s_addr, mfc->mfcc_origin.s_addr);
 
-	for (cp = &init_net.ipv4.mfc_cache_array[line];
+	for (cp = &net->ipv4.mfc_cache_array[line];
 	     (c = *cp) != NULL; cp = &c->next) {
 		if (c->mfc_origin == mfc->mfcc_origin.s_addr &&
 		    c->mfc_mcastgrp == mfc->mfcc_mcastgrp.s_addr)
@@ -799,7 +812,7 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
 	if (!ipv4_is_multicast(mfc->mfcc_mcastgrp.s_addr))
 		return -EINVAL;
 
-	c = ipmr_cache_alloc(&init_net);
+	c = ipmr_cache_alloc(net);
 	if (c == NULL)
 		return -ENOMEM;
 
@@ -811,8 +824,8 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
 		c->mfc_flags |= MFC_STATIC;
 
 	write_lock_bh(&mrt_lock);
-	c->next = init_net.ipv4.mfc_cache_array[line];
-	init_net.ipv4.mfc_cache_array[line] = c;
+	c->next = net->ipv4.mfc_cache_array[line];
+	net->ipv4.mfc_cache_array[line] = c;
 	write_unlock_bh(&mrt_lock);
 
 	/*
@@ -822,11 +835,11 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
 	spin_lock_bh(&mfc_unres_lock);
 	for (cp = &mfc_unres_queue; (uc=*cp) != NULL;
 	     cp = &uc->next) {
-		if (net_eq(mfc_net(uc), &init_net) &&
+		if (net_eq(mfc_net(uc), net) &&
 		    uc->mfc_origin == c->mfc_origin &&
 		    uc->mfc_mcastgrp == c->mfc_mcastgrp) {
 			*cp = uc->next;
-			atomic_dec(&init_net.ipv4.cache_resolve_queue_len);
+			atomic_dec(&net->ipv4.cache_resolve_queue_len);
 			break;
 		}
 	}
@@ -845,16 +858,16 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
  *	Close the multicast socket, and clear the vif tables etc
  */
 
-static void mroute_clean_tables(struct sock *sk)
+static void mroute_clean_tables(struct net *net)
 {
 	int i;
 
 	/*
 	 *	Shut down all active vif entries
 	 */
-	for (i = 0; i < init_net.ipv4.maxvif; i++) {
-		if (!(init_net.ipv4.vif_table[i].flags&VIFF_STATIC))
-			vif_delete(i, 0);
+	for (i = 0; i < net->ipv4.maxvif; i++) {
+		if (!(net->ipv4.vif_table[i].flags&VIFF_STATIC))
+			vif_delete(net, i, 0);
 	}
 
 	/*
@@ -863,7 +876,7 @@ static void mroute_clean_tables(struct sock *sk)
 	for (i=0; i<MFC_LINES; i++) {
 		struct mfc_cache *c, **cp;
 
-		cp = &init_net.ipv4.mfc_cache_array[i];
+		cp = &net->ipv4.mfc_cache_array[i];
 		while ((c = *cp) != NULL) {
 			if (c->mfc_flags&MFC_STATIC) {
 				cp = &c->next;
@@ -877,13 +890,13 @@ static void mroute_clean_tables(struct sock *sk)
 		}
 	}
 
-	if (atomic_read(&init_net.ipv4.cache_resolve_queue_len) != 0) {
+	if (atomic_read(&net->ipv4.cache_resolve_queue_len) != 0) {
 		struct mfc_cache *c, **cp;
 
 		spin_lock_bh(&mfc_unres_lock);
 		cp = &mfc_unres_queue;
 		while ((c = *cp) != NULL) {
-			if (!net_eq(mfc_net(c), &init_net)) {
+			if (!net_eq(mfc_net(c), net)) {
 				cp = &c->next;
 				continue;
 			}
@@ -897,15 +910,17 @@ static void mroute_clean_tables(struct sock *sk)
 
 static void mrtsock_destruct(struct sock *sk)
 {
+	struct net *net = sock_net(sk);
+
 	rtnl_lock();
-	if (sk == init_net.ipv4.mroute_sk) {
-		IPV4_DEVCONF_ALL(sock_net(sk), MC_FORWARDING)--;
+	if (sk == net->ipv4.mroute_sk) {
+		IPV4_DEVCONF_ALL(net, MC_FORWARDING)--;
 
 		write_lock_bh(&mrt_lock);
-		init_net.ipv4.mroute_sk = NULL;
+		net->ipv4.mroute_sk = NULL;
 		write_unlock_bh(&mrt_lock);
 
-		mroute_clean_tables(sk);
+		mroute_clean_tables(net);
 	}
 	rtnl_unlock();
 }
@@ -922,9 +937,10 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 	int ret;
 	struct vifctl vif;
 	struct mfcctl mfc;
+	struct net *net = sock_net(sk);
 
 	if (optname != MRT_INIT) {
-		if (sk != init_net.ipv4.mroute_sk && !capable(CAP_NET_ADMIN))
+		if (sk != net->ipv4.mroute_sk && !capable(CAP_NET_ADMIN))
 			return -EACCES;
 	}
 
@@ -937,7 +953,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 			return -ENOPROTOOPT;
 
 		rtnl_lock();
-		if (init_net.ipv4.mroute_sk) {
+		if (net->ipv4.mroute_sk) {
 			rtnl_unlock();
 			return -EADDRINUSE;
 		}
@@ -945,15 +961,15 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 		ret = ip_ra_control(sk, 1, mrtsock_destruct);
 		if (ret == 0) {
 			write_lock_bh(&mrt_lock);
-			init_net.ipv4.mroute_sk = sk;
+			net->ipv4.mroute_sk = sk;
 			write_unlock_bh(&mrt_lock);
 
-			IPV4_DEVCONF_ALL(sock_net(sk), MC_FORWARDING)++;
+			IPV4_DEVCONF_ALL(net, MC_FORWARDING)++;
 		}
 		rtnl_unlock();
 		return ret;
 	case MRT_DONE:
-		if (sk != init_net.ipv4.mroute_sk)
+		if (sk != net->ipv4.mroute_sk)
 			return -EACCES;
 		return ip_ra_control(sk, 0, NULL);
 	case MRT_ADD_VIF:
@@ -966,9 +982,9 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 			return -ENFILE;
 		rtnl_lock();
 		if (optname == MRT_ADD_VIF) {
-			ret = vif_add(&vif, sk == init_net.ipv4.mroute_sk);
+			ret = vif_add(net, &vif, sk == net->ipv4.mroute_sk);
 		} else {
-			ret = vif_delete(vif.vifc_vifi, 0);
+			ret = vif_delete(net, vif.vifc_vifi, 0);
 		}
 		rtnl_unlock();
 		return ret;
@@ -985,9 +1001,9 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 			return -EFAULT;
 		rtnl_lock();
 		if (optname == MRT_DEL_MFC)
-			ret = ipmr_mfc_delete(&mfc);
+			ret = ipmr_mfc_delete(net, &mfc);
 		else
-			ret = ipmr_mfc_add(&mfc, sk == init_net.ipv4.mroute_sk);
+			ret = ipmr_mfc_add(net, &mfc, sk == net->ipv4.mroute_sk);
 		rtnl_unlock();
 		return ret;
 		/*
@@ -998,7 +1014,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 		int v;
 		if (get_user(v,(int __user *)optval))
 			return -EFAULT;
-		init_net.ipv4.mroute_do_assert = (v) ? 1 : 0;
+		net->ipv4.mroute_do_assert = (v) ? 1 : 0;
 		return 0;
 	}
 #ifdef CONFIG_IP_PIMSM
@@ -1012,11 +1028,11 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, int
 
 		rtnl_lock();
 		ret = 0;
-		if (v != init_net.ipv4.mroute_do_pim) {
-			init_net.ipv4.mroute_do_pim = v;
-			init_net.ipv4.mroute_do_assert = v;
+		if (v != net->ipv4.mroute_do_pim) {
+			net->ipv4.mroute_do_pim = v;
+			net->ipv4.mroute_do_assert = v;
 #ifdef CONFIG_IP_PIMSM_V2
-			if (init_net.ipv4.mroute_do_pim)
+			if (net->ipv4.mroute_do_pim)
 				ret = inet_add_protocol(&pim_protocol,
 							IPPROTO_PIM);
 			else
@@ -1047,6 +1063,7 @@ int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int
 {
 	int olr;
 	int val;
+	struct net *net = sock_net(sk);
 
 	if (optname != MRT_VERSION &&
 #ifdef CONFIG_IP_PIMSM
@@ -1068,10 +1085,10 @@ int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int
 		val = 0x0305;
 #ifdef CONFIG_IP_PIMSM
 	else if (optname == MRT_PIM)
-		val = init_net.ipv4.mroute_do_pim;
+		val = net->ipv4.mroute_do_pim;
 #endif
 	else
-		val = init_net.ipv4.mroute_do_assert;
+		val = net->ipv4.mroute_do_assert;
 	if (copy_to_user(optval, &val, olr))
 		return -EFAULT;
 	return 0;
@@ -1087,16 +1104,17 @@ int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
 	struct sioc_vif_req vr;
 	struct vif_device *vif;
 	struct mfc_cache *c;
+	struct net *net = sock_net(sk);
 
 	switch (cmd) {
 	case SIOCGETVIFCNT:
 		if (copy_from_user(&vr, arg, sizeof(vr)))
 			return -EFAULT;
-		if (vr.vifi >= init_net.ipv4.maxvif)
+		if (vr.vifi >= net->ipv4.maxvif)
 			return -EINVAL;
 		read_lock(&mrt_lock);
-		vif = &init_net.ipv4.vif_table[vr.vifi];
-		if (VIF_EXISTS(&init_net, vr.vifi)) {
+		vif = &net->ipv4.vif_table[vr.vifi];
+		if (VIF_EXISTS(net, vr.vifi)) {
 			vr.icount = vif->pkt_in;
 			vr.ocount = vif->pkt_out;
 			vr.ibytes = vif->bytes_in;
@@ -1114,7 +1132,7 @@ int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
 			return -EFAULT;
 
 		read_lock(&mrt_lock);
-		c = ipmr_cache_find(sr.src.s_addr, sr.grp.s_addr);
+		c = ipmr_cache_find(net, sr.src.s_addr, sr.grp.s_addr);
 		if (c) {
 			sr.pktcnt = c->mfc_un.res.pkt;
 			sr.bytecnt = c->mfc_un.res.bytes;
@@ -1136,18 +1154,19 @@ int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
 static int ipmr_device_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
 	struct net_device *dev = ptr;
+	struct net *net = dev_net(dev);
 	struct vif_device *v;
 	int ct;
 
-	if (!net_eq(dev_net(dev), &init_net))
+	if (!net_eq(dev_net(dev), net))
 		return NOTIFY_DONE;
 
 	if (event != NETDEV_UNREGISTER)
 		return NOTIFY_DONE;
-	v = &init_net.ipv4.vif_table[0];
-	for (ct = 0; ct < init_net.ipv4.maxvif; ct++, v++) {
+	v = &net->ipv4.vif_table[0];
+	for (ct = 0; ct < net->ipv4.maxvif; ct++, v++) {
 		if (v->dev == dev)
-			vif_delete(ct, 1);
+			vif_delete(net, ct, 1);
 	}
 	return NOTIFY_DONE;
 }
@@ -1207,8 +1226,9 @@ static inline int ipmr_forward_finish(struct sk_buff *skb)
 
 static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 {
+	struct net *net = mfc_net(c);
 	const struct iphdr *iph = ip_hdr(skb);
-	struct vif_device *vif = &init_net.ipv4.vif_table[vifi];
+	struct vif_device *vif = &net->ipv4.vif_table[vifi];
 	struct net_device *dev;
 	struct rtable *rt;
 	int    encap = 0;
@@ -1222,7 +1242,7 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 		vif->bytes_out += skb->len;
 		vif->dev->stats.tx_bytes += skb->len;
 		vif->dev->stats.tx_packets++;
-		ipmr_cache_report(skb, vifi, IGMPMSG_WHOLEPKT);
+		ipmr_cache_report(net, skb, vifi, IGMPMSG_WHOLEPKT);
 		kfree_skb(skb);
 		return;
 	}
@@ -1235,7 +1255,7 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 						.saddr = vif->local,
 						.tos = RT_TOS(iph->tos) } },
 				    .proto = IPPROTO_IPIP };
-		if (ip_route_output_key(&init_net, &rt, &fl))
+		if (ip_route_output_key(net, &rt, &fl))
 			goto out_free;
 		encap = sizeof(struct iphdr);
 	} else {
@@ -1244,7 +1264,7 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
 					      { .daddr = iph->daddr,
 						.tos = RT_TOS(iph->tos) } },
 				    .proto = IPPROTO_IPIP };
-		if (ip_route_output_key(&init_net, &rt, &fl))
+		if (ip_route_output_key(net, &rt, &fl))
 			goto out_free;
 	}
 
@@ -1308,9 +1328,10 @@ out_free:
 
 static int ipmr_find_vif(struct net_device *dev)
 {
+	struct net *net = dev_net(dev);
 	int ct;
-	for (ct = init_net.ipv4.maxvif-1; ct >= 0; ct--) {
-		if (init_net.ipv4.vif_table[ct].dev == dev)
+	for (ct = net->ipv4.maxvif-1; ct >= 0; ct--) {
+		if (net->ipv4.vif_table[ct].dev == dev)
 			break;
 	}
 	return ct;
@@ -1322,6 +1343,7 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
 {
 	int psend = -1;
 	int vif, ct;
+	struct net *net = mfc_net(cache);
 
 	vif = cache->mfc_parent;
 	cache->mfc_un.res.pkt++;
@@ -1330,7 +1352,7 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
 	/*
 	 * Wrong interface: drop packet and (maybe) send PIM assert.
 	 */
-	if (init_net.ipv4.vif_table[vif].dev != skb->dev) {
+	if (net->ipv4.vif_table[vif].dev != skb->dev) {
 		int true_vifi;
 
 		if (skb->rtable->fl.iif == 0) {
@@ -1351,24 +1373,24 @@ static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local
 		cache->mfc_un.res.wrong_if++;
 		true_vifi = ipmr_find_vif(skb->dev);
 
-		if (true_vifi >= 0 && init_net.ipv4.mroute_do_assert &&
+		if (true_vifi >= 0 && net->ipv4.mroute_do_assert &&
 		    /* pimsm uses asserts, when switching from RPT to SPT,
 		       so that we cannot check that packet arrived on an oif.
 		       It is bad, but otherwise we would need to move pretty
 		       large chunk of pimd to kernel. Ough... --ANK
 		     */
-		    (init_net.ipv4.mroute_do_pim ||
+		    (net->ipv4.mroute_do_pim ||
 		     cache->mfc_un.res.ttls[true_vifi] < 255) &&
 		    time_after(jiffies,
 			       cache->mfc_un.res.last_assert + MFC_ASSERT_THRESH)) {
 			cache->mfc_un.res.last_assert = jiffies;
-			ipmr_cache_report(skb, true_vifi, IGMPMSG_WRONGVIF);
+			ipmr_cache_report(net, skb, true_vifi, IGMPMSG_WRONGVIF);
 		}
 		goto dont_forward;
 	}
 
-	init_net.ipv4.vif_table[vif].pkt_in++;
-	init_net.ipv4.vif_table[vif].bytes_in += skb->len;
+	net->ipv4.vif_table[vif].pkt_in++;
+	net->ipv4.vif_table[vif].bytes_in += skb->len;
 
 	/*
 	 *	Forward the frame
@@ -1408,6 +1430,7 @@ dont_forward:
 int ip_mr_input(struct sk_buff *skb)
 {
 	struct mfc_cache *cache;
+	struct net *net = dev_net(skb->dev);
 	int local = skb->rtable->rt_flags&RTCF_LOCAL;
 
 	/* Packet is looped back after forward, it should not be
@@ -1428,9 +1451,9 @@ int ip_mr_input(struct sk_buff *skb)
 			       that we can forward NO IGMP messages.
 			     */
 			    read_lock(&mrt_lock);
-			    if (init_net.ipv4.mroute_sk) {
+			    if (net->ipv4.mroute_sk) {
 				    nf_reset(skb);
-				    raw_rcv(init_net.ipv4.mroute_sk, skb);
+				    raw_rcv(net->ipv4.mroute_sk, skb);
 				    read_unlock(&mrt_lock);
 				    return 0;
 			    }
@@ -1439,7 +1462,7 @@ int ip_mr_input(struct sk_buff *skb)
 	}
 
 	read_lock(&mrt_lock);
-	cache = ipmr_cache_find(ip_hdr(skb)->saddr, ip_hdr(skb)->daddr);
+	cache = ipmr_cache_find(net, ip_hdr(skb)->saddr, ip_hdr(skb)->daddr);
 
 	/*
 	 *	No usable cache entry
@@ -1459,7 +1482,7 @@ int ip_mr_input(struct sk_buff *skb)
 
 		vif = ipmr_find_vif(skb->dev);
 		if (vif >= 0) {
-			int err = ipmr_cache_unresolved(vif, skb);
+			int err = ipmr_cache_unresolved(net, vif, skb);
 			read_unlock(&mrt_lock);
 
 			return err;
@@ -1490,6 +1513,7 @@ static int __pim_rcv(struct sk_buff *skb, unsigned int pimlen)
 {
 	struct net_device *reg_dev = NULL;
 	struct iphdr *encap;
+	struct net *net = dev_net(skb->dev);
 
 	encap = (struct iphdr *)(skb_transport_header(skb) + pimlen);
 	/*
@@ -1504,8 +1528,8 @@ static int __pim_rcv(struct sk_buff *skb, unsigned int pimlen)
 		return 1;
 
 	read_lock(&mrt_lock);
-	if (init_net.ipv4.mroute_reg_vif_num >= 0)
-		reg_dev = init_net.ipv4.vif_table[init_net.ipv4.mroute_reg_vif_num].dev;
+	if (net->ipv4.mroute_reg_vif_num >= 0)
+		reg_dev = net->ipv4.vif_table[net->ipv4.mroute_reg_vif_num].dev;
 	if (reg_dev)
 		dev_hold(reg_dev);
 	read_unlock(&mrt_lock);
@@ -1540,13 +1564,14 @@ static int __pim_rcv(struct sk_buff *skb, unsigned int pimlen)
 int pim_rcv_v1(struct sk_buff * skb)
 {
 	struct igmphdr *pim;
+	struct net *net = dev_net(skb->dev);
 
 	if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(struct iphdr)))
 		goto drop;
 
 	pim = igmp_hdr(skb);
 
-	if (!init_net.ipv4.mroute_do_pim ||
+	if (!net->ipv4.mroute_do_pim ||
 	    pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER)
 		goto drop;
 
@@ -1586,7 +1611,8 @@ ipmr_fill_mroute(struct sk_buff *skb, struct mfc_cache *c, struct rtmsg *rtm)
 {
 	int ct;
 	struct rtnexthop *nhp;
-	struct net_device *dev = init_net.ipv4.vif_table[c->mfc_parent].dev;
+	struct net *net = mfc_net(c);
+	struct net_device *dev = net->ipv4.vif_table[c->mfc_parent].dev;
 	u8 *b = skb_tail_pointer(skb);
 	struct rtattr *mp_head;
 
@@ -1602,7 +1628,7 @@ ipmr_fill_mroute(struct sk_buff *skb, struct mfc_cache *c, struct rtmsg *rtm)
 			nhp = (struct rtnexthop *)skb_put(skb, RTA_ALIGN(sizeof(*nhp)));
 			nhp->rtnh_flags = 0;
 			nhp->rtnh_hops = c->mfc_un.res.ttls[ct];
-			nhp->rtnh_ifindex = init_net.ipv4.vif_table[ct].dev->ifindex;
+			nhp->rtnh_ifindex = net->ipv4.vif_table[ct].dev->ifindex;
 			nhp->rtnh_len = sizeof(*nhp);
 		}
 	}
@@ -1616,14 +1642,15 @@ rtattr_failure:
 	return -EMSGSIZE;
 }
 
-int ipmr_get_route(struct sk_buff *skb, struct rtmsg *rtm, int nowait)
+int ipmr_get_route(struct net *net,
+		   struct sk_buff *skb, struct rtmsg *rtm, int nowait)
 {
 	int err;
 	struct mfc_cache *cache;
 	struct rtable *rt = skb->rtable;
 
 	read_lock(&mrt_lock);
-	cache = ipmr_cache_find(rt->rt_src, rt->rt_dst);
+	cache = ipmr_cache_find(net, rt->rt_src, rt->rt_dst);
 
 	if (cache == NULL) {
 		struct sk_buff *skb2;
@@ -1654,7 +1681,7 @@ int ipmr_get_route(struct sk_buff *skb, struct rtmsg *rtm, int nowait)
 		iph->saddr = rt->rt_src;
 		iph->daddr = rt->rt_dst;
 		iph->version = 0;
-		err = ipmr_cache_unresolved(vif, skb2);
+		err = ipmr_cache_unresolved(net, vif, skb2);
 		read_unlock(&mrt_lock);
 		return err;
 	}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 97f71153584f..6a9e204c8024 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2779,7 +2779,8 @@ int ip_route_output_key(struct net *net, struct rtable **rp, struct flowi *flp)
 	return ip_route_output_flow(net, rp, flp, NULL, 0);
 }
 
-static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
+static int rt_fill_info(struct net *net,
+			struct sk_buff *skb, u32 pid, u32 seq, int event,
 			int nowait, unsigned int flags)
 {
 	struct rtable *rt = skb->rtable;
@@ -2844,8 +2845,8 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 		__be32 dst = rt->rt_dst;
 
 		if (ipv4_is_multicast(dst) && !ipv4_is_local_multicast(dst) &&
-		    IPV4_DEVCONF_ALL(&init_net, MC_FORWARDING)) {
-			int err = ipmr_get_route(skb, r, nowait);
+		    IPV4_DEVCONF_ALL(net, MC_FORWARDING)) {
+			int err = ipmr_get_route(net, skb, r, nowait);
 			if (err <= 0) {
 				if (!nowait) {
 					if (err == 0)
@@ -2950,7 +2951,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
 	if (rtm->rtm_flags & RTM_F_NOTIFY)
 		rt->rt_flags |= RTCF_NOTIFY;
 
-	err = rt_fill_info(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq,
+	err = rt_fill_info(net, skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq,
 			   RTM_NEWROUTE, 0, 0);
 	if (err <= 0)
 		goto errout_free;
@@ -2988,7 +2989,7 @@ int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb)
 			if (rt_is_expired(rt))
 				continue;
 			skb->dst = dst_clone(&rt->u.dst);
-			if (rt_fill_info(skb, NETLINK_CB(cb->skb).pid,
+			if (rt_fill_info(net, skb, NETLINK_CB(cb->skb).pid,
 					 cb->nlh->nlmsg_seq, RTM_NEWROUTE,
 					 1, NLM_F_MULTI) <= 0) {
 				dst_release(xchg(&skb->dst, NULL));
-- 
cgit v1.2.3


From fd8757aed16470e088ecdad96ffd30f86c34424d Mon Sep 17 00:00:00 2001
From: Matthew Ranostay <mranostay@embeddedalley.com>
Date: Wed, 21 Jan 2009 17:45:12 -0500
Subject: Add PCI DFI vendor ID

Add a define for DFI PCI vendor id.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/linux/pci_ids.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include')

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index d543365518ab..6b339766b7ad 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2106,6 +2106,8 @@
 #define PCI_DEVICE_ID_MELLANOX_SINAI_OLD 0x5e8c
 #define PCI_DEVICE_ID_MELLANOX_SINAI	0x6274
 
+#define PCI_VENDOR_ID_DFI		0x15bd
+
 #define PCI_VENDOR_ID_QUICKNET		0x15e2
 #define PCI_DEVICE_ID_QUICKNET_XJ	0x0500
 
-- 
cgit v1.2.3


From 0db155de988031f925096a7df1bf9633790a2c18 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 23 Jan 2009 22:28:48 -0800
Subject: com20020: Fix allyesconfig build failure.

Reported by Stephen Rothwell.

Due to missing 'extern' in the com20020_netdev_ops declaration,
each file that includes linux/com20020.h gets another copy
defined in it's resulting object file.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/com20020.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/com20020.h b/include/linux/com20020.h
index 350afa773f8f..5dcfb944b6ce 100644
--- a/include/linux/com20020.h
+++ b/include/linux/com20020.h
@@ -29,7 +29,7 @@
 
 int com20020_check(struct net_device *dev);
 int com20020_found(struct net_device *dev, int shared);
-const struct net_device_ops com20020_netdev_ops;
+extern const struct net_device_ops com20020_netdev_ops;
 
 /* The number of low I/O ports used by the card. */
 #define ARCNET_TOTAL_SIZE 8
-- 
cgit v1.2.3


From 76e02cf6945e6faa9f6b546dc0513512197c5966 Mon Sep 17 00:00:00 2001
From: "remi.denis-courmont@nokia" <remi.denis-courmont@nokia>
Date: Fri, 23 Jan 2009 03:00:27 +0000
Subject: Phonet: allow phonet_device_init() to fail, put it to __init section
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/phonet/phonet.h | 1 -
 include/net/phonet/pn_dev.h | 3 ++-
 net/phonet/af_phonet.c      | 9 ++++++---
 net/phonet/pn_dev.c         | 4 +++-
 4 files changed, 11 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/include/net/phonet/phonet.h b/include/net/phonet/phonet.h
index 057b0a8a2885..d43f71b5ec00 100644
--- a/include/net/phonet/phonet.h
+++ b/include/net/phonet/phonet.h
@@ -105,7 +105,6 @@ void phonet_proto_unregister(int protocol, struct phonet_protocol *pp);
 
 int phonet_sysctl_init(void);
 void phonet_sysctl_exit(void);
-void phonet_netlink_register(void);
 int isi_register(void);
 void isi_unregister(void);
 
diff --git a/include/net/phonet/pn_dev.h b/include/net/phonet/pn_dev.h
index aa1c59a1d33f..59ae628b1111 100644
--- a/include/net/phonet/pn_dev.h
+++ b/include/net/phonet/pn_dev.h
@@ -36,8 +36,9 @@ struct phonet_device {
 	DECLARE_BITMAP(addrs, 64);
 };
 
-void phonet_device_init(void);
+int phonet_device_init(void);
 void phonet_device_exit(void);
+void phonet_netlink_register(void);
 struct net_device *phonet_device_get(struct net *net);
 
 int phonet_address_add(struct net_device *dev, u8 addr);
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index c7c39d92ee5e..95bc49ddb8bf 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -426,16 +426,18 @@ static int __init phonet_init(void)
 {
 	int err;
 
+	err = phonet_device_init();
+	if (err)
+		return err;
+
 	err = sock_register(&phonet_proto_family);
 	if (err) {
 		printk(KERN_ALERT
 			"phonet protocol family initialization failed\n");
-		return err;
+		goto err_sock;
 	}
 
-	phonet_device_init();
 	dev_add_pack(&phonet_packet_type);
-	phonet_netlink_register();
 	phonet_sysctl_init();
 
 	err = isi_register();
@@ -447,6 +449,7 @@ err:
 	phonet_sysctl_exit();
 	sock_unregister(PF_PHONET);
 	dev_remove_pack(&phonet_packet_type);
+err_sock:
 	phonet_device_exit();
 	return err;
 }
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index 5491bf5e354b..af49db01d634 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -188,9 +188,11 @@ static struct notifier_block phonet_device_notifier = {
 };
 
 /* Initialize Phonet devices list */
-void phonet_device_init(void)
+int __init phonet_device_init(void)
 {
 	register_netdevice_notifier(&phonet_device_notifier);
+	phonet_netlink_register();
+	return 0;
 }
 
 void phonet_device_exit(void)
-- 
cgit v1.2.3


From 660f706d931d4795d341805e083a8091af74fa88 Mon Sep 17 00:00:00 2001
From: "remi.denis-courmont@nokia" <remi.denis-courmont@nokia>
Date: Fri, 23 Jan 2009 03:00:28 +0000
Subject: Phonet: handle rtnetlink registration failure
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/phonet/pn_dev.h |  2 +-
 net/phonet/pn_dev.c         |  8 ++++++--
 net/phonet/pn_netlink.c     | 13 +++++++++----
 3 files changed, 16 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/include/net/phonet/pn_dev.h b/include/net/phonet/pn_dev.h
index 59ae628b1111..4ba2aedaa507 100644
--- a/include/net/phonet/pn_dev.h
+++ b/include/net/phonet/pn_dev.h
@@ -38,7 +38,7 @@ struct phonet_device {
 
 int phonet_device_init(void);
 void phonet_device_exit(void);
-void phonet_netlink_register(void);
+int phonet_netlink_register(void);
 struct net_device *phonet_device_get(struct net *net);
 
 int phonet_address_add(struct net_device *dev, u8 addr);
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index af49db01d634..fd418107652b 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -190,9 +190,13 @@ static struct notifier_block phonet_device_notifier = {
 /* Initialize Phonet devices list */
 int __init phonet_device_init(void)
 {
+	int err;
+
 	register_netdevice_notifier(&phonet_device_notifier);
-	phonet_netlink_register();
-	return 0;
+	err = phonet_netlink_register();
+	if (err)
+		phonet_device_exit();
+	return err;
 }
 
 void phonet_device_exit(void)
diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
index 242fe8f8c322..918a4f07f24a 100644
--- a/net/phonet/pn_netlink.c
+++ b/net/phonet/pn_netlink.c
@@ -160,9 +160,14 @@ out:
 	return skb->len;
 }
 
-void __init phonet_netlink_register(void)
+int __init phonet_netlink_register(void)
 {
-	rtnl_register(PF_PHONET, RTM_NEWADDR, addr_doit, NULL);
-	rtnl_register(PF_PHONET, RTM_DELADDR, addr_doit, NULL);
-	rtnl_register(PF_PHONET, RTM_GETADDR, NULL, getaddr_dumpit);
+	int err = __rtnl_register(PF_PHONET, RTM_NEWADDR, addr_doit, NULL);
+	if (err)
+		return err;
+
+	/* Further __rtnl_register() cannot fail */
+	__rtnl_register(PF_PHONET, RTM_DELADDR, addr_doit, NULL);
+	__rtnl_register(PF_PHONET, RTM_GETADDR, NULL, getaddr_dumpit);
+	return 0;
 }
-- 
cgit v1.2.3


From 9a3b7a42bb2919a6282a96a5f4abe0f9be36c4b3 Mon Sep 17 00:00:00 2001
From: "remi.denis-courmont@nokia" <remi.denis-courmont@nokia>
Date: Fri, 23 Jan 2009 03:00:30 +0000
Subject: Phonet: use per-namespace devices list
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/phonet/pn_dev.h |   2 +-
 net/phonet/pn_dev.c         | 108 ++++++++++++++++++++++++++++++--------------
 net/phonet/pn_netlink.c     |  11 ++---
 3 files changed, 81 insertions(+), 40 deletions(-)

(limited to 'include')

diff --git a/include/net/phonet/pn_dev.h b/include/net/phonet/pn_dev.h
index 4ba2aedaa507..5054dc5ea2c2 100644
--- a/include/net/phonet/pn_dev.h
+++ b/include/net/phonet/pn_dev.h
@@ -28,7 +28,7 @@ struct phonet_device_list {
 	spinlock_t lock;
 };
 
-extern struct phonet_device_list pndevs;
+struct phonet_device_list *phonet_device_list(struct net *net);
 
 struct phonet_device {
 	struct list_head list;
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index 3e24c0522ee3..80a322d77909 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -28,32 +28,41 @@
 #include <linux/netdevice.h>
 #include <linux/phonet.h>
 #include <net/sock.h>
+#include <net/netns/generic.h>
 #include <net/phonet/pn_dev.h>
 
-/* when accessing, remember to lock with spin_lock(&pndevs.lock); */
-struct phonet_device_list pndevs = {
-	.list = LIST_HEAD_INIT(pndevs.list),
-	.lock = __SPIN_LOCK_UNLOCKED(pndevs.lock),
+struct phonet_net {
+	struct phonet_device_list pndevs;
 };
 
+int phonet_net_id;
+
+struct phonet_device_list *phonet_device_list(struct net *net)
+{
+	struct phonet_net *pnn = net_generic(net, phonet_net_id);
+	return &pnn->pndevs;
+}
+
 /* Allocate new Phonet device. */
 static struct phonet_device *__phonet_device_alloc(struct net_device *dev)
 {
+	struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev));
 	struct phonet_device *pnd = kmalloc(sizeof(*pnd), GFP_ATOMIC);
 	if (pnd == NULL)
 		return NULL;
 	pnd->netdev = dev;
 	bitmap_zero(pnd->addrs, 64);
 
-	list_add(&pnd->list, &pndevs.list);
+	list_add(&pnd->list, &pndevs->list);
 	return pnd;
 }
 
 static struct phonet_device *__phonet_get(struct net_device *dev)
 {
+	struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev));
 	struct phonet_device *pnd;
 
-	list_for_each_entry(pnd, &pndevs.list, list) {
+	list_for_each_entry(pnd, &pndevs->list, list) {
 		if (pnd->netdev == dev)
 			return pnd;
 	}
@@ -68,32 +77,33 @@ static void __phonet_device_free(struct phonet_device *pnd)
 
 struct net_device *phonet_device_get(struct net *net)
 {
+	struct phonet_device_list *pndevs = phonet_device_list(net);
 	struct phonet_device *pnd;
 	struct net_device *dev;
 
-	spin_lock_bh(&pndevs.lock);
-	list_for_each_entry(pnd, &pndevs.list, list) {
+	spin_lock_bh(&pndevs->lock);
+	list_for_each_entry(pnd, &pndevs->list, list) {
 		dev = pnd->netdev;
 		BUG_ON(!dev);
 
-		if (net_eq(dev_net(dev), net) &&
-			(dev->reg_state == NETREG_REGISTERED) &&
+		if ((dev->reg_state == NETREG_REGISTERED) &&
 			((pnd->netdev->flags & IFF_UP)) == IFF_UP)
 			break;
 		dev = NULL;
 	}
 	if (dev)
 		dev_hold(dev);
-	spin_unlock_bh(&pndevs.lock);
+	spin_unlock_bh(&pndevs->lock);
 	return dev;
 }
 
 int phonet_address_add(struct net_device *dev, u8 addr)
 {
+	struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev));
 	struct phonet_device *pnd;
 	int err = 0;
 
-	spin_lock_bh(&pndevs.lock);
+	spin_lock_bh(&pndevs->lock);
 	/* Find or create Phonet-specific device data */
 	pnd = __phonet_get(dev);
 	if (pnd == NULL)
@@ -102,31 +112,33 @@ int phonet_address_add(struct net_device *dev, u8 addr)
 		err = -ENOMEM;
 	else if (test_and_set_bit(addr >> 2, pnd->addrs))
 		err = -EEXIST;
-	spin_unlock_bh(&pndevs.lock);
+	spin_unlock_bh(&pndevs->lock);
 	return err;
 }
 
 int phonet_address_del(struct net_device *dev, u8 addr)
 {
+	struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev));
 	struct phonet_device *pnd;
 	int err = 0;
 
-	spin_lock_bh(&pndevs.lock);
+	spin_lock_bh(&pndevs->lock);
 	pnd = __phonet_get(dev);
 	if (!pnd || !test_and_clear_bit(addr >> 2, pnd->addrs))
 		err = -EADDRNOTAVAIL;
 	else if (bitmap_empty(pnd->addrs, 64))
 		__phonet_device_free(pnd);
-	spin_unlock_bh(&pndevs.lock);
+	spin_unlock_bh(&pndevs->lock);
 	return err;
 }
 
 /* Gets a source address toward a destination, through a interface. */
 u8 phonet_address_get(struct net_device *dev, u8 addr)
 {
+	struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev));
 	struct phonet_device *pnd;
 
-	spin_lock_bh(&pndevs.lock);
+	spin_lock_bh(&pndevs->lock);
 	pnd = __phonet_get(dev);
 	if (pnd) {
 		BUG_ON(bitmap_empty(pnd->addrs, 64));
@@ -136,30 +148,31 @@ u8 phonet_address_get(struct net_device *dev, u8 addr)
 			addr = find_first_bit(pnd->addrs, 64) << 2;
 	} else
 		addr = PN_NO_ADDR;
-	spin_unlock_bh(&pndevs.lock);
+	spin_unlock_bh(&pndevs->lock);
 	return addr;
 }
 
 int phonet_address_lookup(struct net *net, u8 addr)
 {
+	struct phonet_device_list *pndevs = phonet_device_list(net);
 	struct phonet_device *pnd;
+	int err = -EADDRNOTAVAIL;
 
-	spin_lock_bh(&pndevs.lock);
-	list_for_each_entry(pnd, &pndevs.list, list) {
-		if (!net_eq(dev_net(pnd->netdev), net))
-			continue;
+	spin_lock_bh(&pndevs->lock);
+	list_for_each_entry(pnd, &pndevs->list, list) {
 		/* Don't allow unregistering devices! */
 		if ((pnd->netdev->reg_state != NETREG_REGISTERED) ||
 				((pnd->netdev->flags & IFF_UP)) != IFF_UP)
 			continue;
 
 		if (test_bit(addr >> 2, pnd->addrs)) {
-			spin_unlock_bh(&pndevs.lock);
-			return 0;
+			err = 0;
+			goto found;
 		}
 	}
-	spin_unlock_bh(&pndevs.lock);
-	return -EADDRNOTAVAIL;
+found:
+	spin_unlock_bh(&pndevs->lock);
+	return err;
 }
 
 /* notify Phonet of device events */
@@ -169,14 +182,16 @@ static int phonet_device_notify(struct notifier_block *me, unsigned long what,
 	struct net_device *dev = arg;
 
 	if (what == NETDEV_UNREGISTER) {
+		struct phonet_device_list *pndevs;
 		struct phonet_device *pnd;
 
 		/* Destroy phonet-specific device data */
-		spin_lock_bh(&pndevs.lock);
+		pndevs = phonet_device_list(dev_net(dev));
+		spin_lock_bh(&pndevs->lock);
 		pnd = __phonet_get(dev);
 		if (pnd)
 			__phonet_device_free(pnd);
-		spin_unlock_bh(&pndevs.lock);
+		spin_unlock_bh(&pndevs->lock);
 	}
 	return 0;
 
@@ -187,10 +202,41 @@ static struct notifier_block phonet_device_notifier = {
 	.priority = 0,
 };
 
+/* Per-namespace Phonet devices handling */
+static int phonet_init_net(struct net *net)
+{
+	struct phonet_net *pnn = kmalloc(sizeof(*pnn), GFP_KERNEL);
+	if (!pnn)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&pnn->pndevs.list);
+	spin_lock_init(&pnn->pndevs.lock);
+	net_assign_generic(net, phonet_net_id, pnn);
+	return 0;
+}
+
+static void phonet_exit_net(struct net *net)
+{
+	struct phonet_net *pnn = net_generic(net, phonet_net_id);
+	struct phonet_device *pnd, *n;
+
+	list_for_each_entry_safe(pnd, n, &pnn->pndevs.list, list)
+		__phonet_device_free(pnd);
+
+	kfree(pnn);
+}
+
+static struct pernet_operations phonet_net_ops = {
+	.init = phonet_init_net,
+	.exit = phonet_exit_net,
+};
+
 /* Initialize Phonet devices list */
 int __init phonet_device_init(void)
 {
-	int err;
+	int err = register_pernet_gen_device(&phonet_net_id, &phonet_net_ops);
+	if (err)
+		return err;
 
 	register_netdevice_notifier(&phonet_device_notifier);
 	err = phonet_netlink_register();
@@ -201,11 +247,7 @@ int __init phonet_device_init(void)
 
 void phonet_device_exit(void)
 {
-	struct phonet_device *pnd, *n;
-
 	rtnl_unregister_all(PF_PHONET);
 	unregister_netdevice_notifier(&phonet_device_notifier);
-
-	list_for_each_entry_safe(pnd, n, &pndevs.list, list)
-		__phonet_device_free(pnd);
+	unregister_pernet_gen_device(phonet_net_id, &phonet_net_ops);
 }
diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
index 918a4f07f24a..1ceea1f92413 100644
--- a/net/phonet/pn_netlink.c
+++ b/net/phonet/pn_netlink.c
@@ -123,17 +123,16 @@ nla_put_failure:
 
 static int getaddr_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	struct net *net = sock_net(skb->sk);
+	struct phonet_device_list *pndevs;
 	struct phonet_device *pnd;
 	int dev_idx = 0, dev_start_idx = cb->args[0];
 	int addr_idx = 0, addr_start_idx = cb->args[1];
 
-	spin_lock_bh(&pndevs.lock);
-	list_for_each_entry(pnd, &pndevs.list, list) {
+	pndevs = phonet_device_list(sock_net(skb->sk));
+	spin_lock_bh(&pndevs->lock);
+	list_for_each_entry(pnd, &pndevs->list, list) {
 		u8 addr;
 
-		if (!net_eq(dev_net(pnd->netdev), net))
-			continue;
 		if (dev_idx > dev_start_idx)
 			addr_start_idx = 0;
 		if (dev_idx++ < dev_start_idx)
@@ -153,7 +152,7 @@ static int getaddr_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
 	}
 
 out:
-	spin_unlock_bh(&pndevs.lock);
+	spin_unlock_bh(&pndevs->lock);
 	cb->args[0] = dev_idx;
 	cb->args[1] = addr_idx;
 
-- 
cgit v1.2.3


From 6627a653bceb3a54e55e5cdc478ec5b8d5c9cc44 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Fri, 23 Jan 2009 22:55:23 +0000
Subject: ASoC: Push the codec runtime storage into the card structure

This is a further stage on the road to refactoring away the ASoC
platform device.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/soc.h            |  3 ++-
 sound/soc/codecs/ac97.c        | 20 ++++++++++----------
 sound/soc/codecs/ad1980.c      | 12 ++++++------
 sound/soc/codecs/ad73311.c     |  8 ++++----
 sound/soc/codecs/ak4535.c      | 14 +++++++-------
 sound/soc/codecs/cs4270.c      |  6 +++---
 sound/soc/codecs/pcm3008.c     | 12 ++++++------
 sound/soc/codecs/ssm2602.c     | 20 ++++++++++----------
 sound/soc/codecs/tlv320aic23.c | 18 +++++++++---------
 sound/soc/codecs/tlv320aic26.c |  4 ++--
 sound/soc/codecs/tlv320aic3x.c | 14 +++++++-------
 sound/soc/codecs/twl4030.c     | 12 ++++++------
 sound/soc/codecs/uda134x.c     | 18 +++++++++---------
 sound/soc/codecs/uda1380.c     | 18 +++++++++---------
 sound/soc/codecs/wm8350.c      | 10 +++++-----
 sound/soc/codecs/wm8510.c      | 16 ++++++++--------
 sound/soc/codecs/wm8580.c      | 10 +++++-----
 sound/soc/codecs/wm8728.c      | 16 ++++++++--------
 sound/soc/codecs/wm8731.c      | 20 ++++++++++----------
 sound/soc/codecs/wm8750.c      | 16 ++++++++--------
 sound/soc/codecs/wm8753.c      | 18 +++++++++---------
 sound/soc/codecs/wm8900.c      |  8 ++++----
 sound/soc/codecs/wm8903.c      | 18 +++++++++---------
 sound/soc/codecs/wm8971.c      | 14 +++++++-------
 sound/soc/codecs/wm8990.c      | 14 +++++++-------
 sound/soc/codecs/wm9705.c      | 15 ++++++++-------
 sound/soc/codecs/wm9712.c      | 21 +++++++++++----------
 sound/soc/codecs/wm9713.c      | 17 +++++++++--------
 sound/soc/soc-core.c           | 37 +++++++++++++++++--------------------
 sound/soc/soc-dapm.c           |  6 +++---
 sound/soc/soc-jack.c           |  4 ++--
 31 files changed, 220 insertions(+), 219 deletions(-)

(limited to 'include')

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7039343e8a78..0e7735264169 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -418,6 +418,8 @@ struct snd_soc_card {
 
 	struct snd_soc_device *socdev;
 
+	struct snd_soc_codec *codec;
+
 	struct snd_soc_platform *platform;
 	struct delayed_work delayed_work;
 	struct work_struct deferred_resume_work;
@@ -427,7 +429,6 @@ struct snd_soc_card {
 struct snd_soc_device {
 	struct device *dev;
 	struct snd_soc_card *card;
-	struct snd_soc_codec *codec;
 	struct snd_soc_codec_device *codec_dev;
 	void *codec_data;
 };
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c
index 89d41277616d..11f84b6e5cb8 100644
--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -30,7 +30,7 @@ static int ac97_prepare(struct snd_pcm_substream *substream,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
 		  AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE;
@@ -84,10 +84,10 @@ static int ac97_soc_probe(struct platform_device *pdev)
 
 	printk(KERN_INFO "AC97 SoC Audio Codec %s\n", AC97_VERSION);
 
-	socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-	if (!socdev->codec)
+	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
+	if (!socdev->card->codec)
 		return -ENOMEM;
-	codec = socdev->codec;
+	codec = socdev->card->codec;
 	mutex_init(&codec->mutex);
 
 	codec->name = "AC97";
@@ -123,21 +123,21 @@ bus_err:
 	snd_soc_free_pcms(socdev);
 
 err:
-	kfree(socdev->codec);
-	socdev->codec = NULL;
+	kfree(socdev->card->codec);
+	socdev->card->codec = NULL;
 	return ret;
 }
 
 static int ac97_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (!codec)
 		return 0;
 
 	snd_soc_free_pcms(socdev);
-	kfree(socdev->codec);
+	kfree(socdev->card->codec);
 
 	return 0;
 }
@@ -147,7 +147,7 @@ static int ac97_soc_suspend(struct platform_device *pdev, pm_message_t msg)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
 
-	snd_ac97_suspend(socdev->codec->ac97);
+	snd_ac97_suspend(socdev->card->codec->ac97);
 
 	return 0;
 }
@@ -156,7 +156,7 @@ static int ac97_soc_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
 
-	snd_ac97_resume(socdev->codec->ac97);
+	snd_ac97_resume(socdev->card->codec->ac97);
 
 	return 0;
 }
diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c
index faf358758e13..ddb3b08ac23c 100644
--- a/sound/soc/codecs/ad1980.c
+++ b/sound/soc/codecs/ad1980.c
@@ -186,10 +186,10 @@ static int ad1980_soc_probe(struct platform_device *pdev)
 
 	printk(KERN_INFO "AD1980 SoC Audio Codec\n");
 
-	socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-	if (socdev->codec == NULL)
+	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
+	if (socdev->card->codec == NULL)
 		return -ENOMEM;
-	codec = socdev->codec;
+	codec = socdev->card->codec;
 	mutex_init(&codec->mutex);
 
 	codec->reg_cache =
@@ -275,15 +275,15 @@ codec_err:
 	kfree(codec->reg_cache);
 
 cache_err:
-	kfree(socdev->codec);
-	socdev->codec = NULL;
+	kfree(socdev->card->codec);
+	socdev->card->codec = NULL;
 	return ret;
 }
 
 static int ad1980_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec == NULL)
 		return 0;
diff --git a/sound/soc/codecs/ad73311.c b/sound/soc/codecs/ad73311.c
index b09289a1e55a..e61dac5e7b8f 100644
--- a/sound/soc/codecs/ad73311.c
+++ b/sound/soc/codecs/ad73311.c
@@ -53,7 +53,7 @@ static int ad73311_soc_probe(struct platform_device *pdev)
 	codec->owner = THIS_MODULE;
 	codec->dai = &ad73311_dai;
 	codec->num_dai = 1;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
 
@@ -75,15 +75,15 @@ static int ad73311_soc_probe(struct platform_device *pdev)
 register_err:
 	snd_soc_free_pcms(socdev);
 pcm_err:
-	kfree(socdev->codec);
-	socdev->codec = NULL;
+	kfree(socdev->card->codec);
+	socdev->card->codec = NULL;
 	return ret;
 }
 
 static int ad73311_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec == NULL)
 		return 0;
diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c
index f17c363cb1db..d56e6bb1fedb 100644
--- a/sound/soc/codecs/ak4535.c
+++ b/sound/soc/codecs/ak4535.c
@@ -329,7 +329,7 @@ static int ak4535_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct ak4535_priv *ak4535 = codec->private_data;
 	u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5);
 	int rate = params_rate(params), fs = 256;
@@ -447,7 +447,7 @@ EXPORT_SYMBOL_GPL(ak4535_dai);
 static int ak4535_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
@@ -456,7 +456,7 @@ static int ak4535_suspend(struct platform_device *pdev, pm_message_t state)
 static int ak4535_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	ak4535_sync(codec);
 	ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 	ak4535_set_bias_level(codec, codec->suspend_bias_level);
@@ -469,7 +469,7 @@ static int ak4535_resume(struct platform_device *pdev)
  */
 static int ak4535_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret = 0;
 
 	codec->name = "AK4535";
@@ -523,7 +523,7 @@ static int ak4535_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = ak4535_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -622,7 +622,7 @@ static int ak4535_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = ak4535;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -649,7 +649,7 @@ static int ak4535_probe(struct platform_device *pdev)
 static int ak4535_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index 2aa12fdbd2ca..21253b48289f 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -350,7 +350,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct cs4270_private *cs4270 = codec->private_data;
 	int ret;
 	unsigned int i;
@@ -575,7 +575,7 @@ static int cs4270_i2c_probe(struct i2c_client *i2c_client,
 		return -ENOMEM;
 	}
 	codec = &cs4270->codec;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
@@ -653,7 +653,7 @@ error_free_codec:
 static int cs4270_i2c_remove(struct i2c_client *i2c_client)
 {
 	struct snd_soc_device *socdev = i2c_get_clientdata(i2c_client);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct cs4270_private *cs4270 = codec->private_data;
 
 	snd_soc_free_pcms(socdev);
diff --git a/sound/soc/codecs/pcm3008.c b/sound/soc/codecs/pcm3008.c
index 9a3e67e5319c..5cda9e6b5a74 100644
--- a/sound/soc/codecs/pcm3008.c
+++ b/sound/soc/codecs/pcm3008.c
@@ -67,11 +67,11 @@ static int pcm3008_soc_probe(struct platform_device *pdev)
 
 	printk(KERN_INFO "PCM3008 SoC Audio Codec %s\n", PCM3008_VERSION);
 
-	socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-	if (!socdev->codec)
+	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
+	if (!socdev->card->codec)
 		return -ENOMEM;
 
-	codec = socdev->codec;
+	codec = socdev->card->codec;
 	mutex_init(&codec->mutex);
 
 	codec->name = "PCM3008";
@@ -139,7 +139,7 @@ gpio_err:
 card_err:
 	snd_soc_free_pcms(socdev);
 pcm_err:
-	kfree(socdev->codec);
+	kfree(socdev->card->codec);
 
 	return ret;
 }
@@ -147,7 +147,7 @@ pcm_err:
 static int pcm3008_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct pcm3008_setup_data *setup = socdev->codec_data;
 
 	if (!codec)
@@ -155,7 +155,7 @@ static int pcm3008_soc_remove(struct platform_device *pdev)
 
 	pcm3008_gpio_free(setup);
 	snd_soc_free_pcms(socdev);
-	kfree(socdev->codec);
+	kfree(socdev->card->codec);
 
 	return 0;
 }
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index ec7fe3b7b0cb..58e225dadc7e 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -276,7 +276,7 @@ static int ssm2602_hw_params(struct snd_pcm_substream *substream,
 	u16 srate;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct ssm2602_priv *ssm2602 = codec->private_data;
 	struct i2c_client *i2c = codec->control_data;
 	u16 iface = ssm2602_read_reg_cache(codec, SSM2602_IFACE) & 0xfff3;
@@ -321,7 +321,7 @@ static int ssm2602_startup(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct ssm2602_priv *ssm2602 = codec->private_data;
 	struct i2c_client *i2c = codec->control_data;
 	struct snd_pcm_runtime *master_runtime;
@@ -358,7 +358,7 @@ static int ssm2602_pcm_prepare(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	/* set active */
 	ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
 
@@ -370,7 +370,7 @@ static void ssm2602_shutdown(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct ssm2602_priv *ssm2602 = codec->private_data;
 	/* deactivate */
 	if (!codec->active)
@@ -535,7 +535,7 @@ EXPORT_SYMBOL_GPL(ssm2602_dai);
 static int ssm2602_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
@@ -544,7 +544,7 @@ static int ssm2602_suspend(struct platform_device *pdev, pm_message_t state)
 static int ssm2602_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u16 *cache = codec->reg_cache;
@@ -566,7 +566,7 @@ static int ssm2602_resume(struct platform_device *pdev)
  */
 static int ssm2602_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int reg, ret = 0;
 
 	codec->name = "SSM2602";
@@ -639,7 +639,7 @@ static int ssm2602_i2c_probe(struct i2c_client *i2c,
 			     const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = ssm2602_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -733,7 +733,7 @@ static int ssm2602_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = ssm2602;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -754,7 +754,7 @@ static int ssm2602_probe(struct platform_device *pdev)
 static int ssm2602_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index a0e47c1dcd64..8b20c360adf5 100644
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -405,7 +405,7 @@ static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 iface_reg;
 	int ret;
 	struct aic23 *aic23 = container_of(codec, struct aic23, codec);
@@ -453,7 +453,7 @@ static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	/* set active */
 	tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001);
@@ -466,7 +466,7 @@ static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct aic23 *aic23 = container_of(codec, struct aic23, codec);
 
 	/* deactivate */
@@ -609,7 +609,7 @@ static int tlv320aic23_suspend(struct platform_device *pdev,
 			       pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
 	tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
@@ -620,7 +620,7 @@ static int tlv320aic23_suspend(struct platform_device *pdev,
 static int tlv320aic23_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u16 reg;
 
@@ -642,7 +642,7 @@ static int tlv320aic23_resume(struct platform_device *pdev)
  */
 static int tlv320aic23_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret = 0;
 	u16 reg;
 
@@ -729,7 +729,7 @@ static int tlv320aic23_codec_probe(struct i2c_client *i2c,
 				   const struct i2c_device_id *i2c_id)
 {
 	struct snd_soc_device *socdev = tlv320aic23_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -787,7 +787,7 @@ static int tlv320aic23_probe(struct platform_device *pdev)
 	if (aic23 == NULL)
 		return -ENOMEM;
 	codec = &aic23->codec;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -806,7 +806,7 @@ static int tlv320aic23_probe(struct platform_device *pdev)
 static int tlv320aic23_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct aic23 *aic23 = container_of(codec, struct aic23, codec);
 
 	if (codec->control_data)
diff --git a/sound/soc/codecs/tlv320aic26.c b/sound/soc/codecs/tlv320aic26.c
index 29f2f1a017fd..229e464cf713 100644
--- a/sound/soc/codecs/tlv320aic26.c
+++ b/sound/soc/codecs/tlv320aic26.c
@@ -130,7 +130,7 @@ static int aic26_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct aic26 *aic26 = codec->private_data;
 	int fsref, divisor, wlen, pval, jval, dval, qval;
 	u16 reg;
@@ -338,7 +338,7 @@ static int aic26_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 	codec = &aic26->codec;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 
 	dev_dbg(&pdev->dev, "Registering PCMs, dev=%p, socdev->dev=%p\n",
 		&pdev->dev, socdev->dev);
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 36ab0198ca3f..ba64b0c617e6 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -727,7 +727,7 @@ static int aic3x_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct aic3x_priv *aic3x = codec->private_data;
 	int codec_clk = 0, bypass_pll = 0, fsref, last_clk = 0;
 	u8 data, r, p, pll_q, pll_p = 1, pll_r = 1, pll_j = 1;
@@ -1079,7 +1079,7 @@ EXPORT_SYMBOL_GPL(aic3x_dai);
 static int aic3x_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
@@ -1089,7 +1089,7 @@ static int aic3x_suspend(struct platform_device *pdev, pm_message_t state)
 static int aic3x_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u8 *cache = codec->reg_cache;
@@ -1112,7 +1112,7 @@ static int aic3x_resume(struct platform_device *pdev)
  */
 static int aic3x_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct aic3x_setup_data *setup = socdev->codec_data;
 	int reg, ret = 0;
 
@@ -1243,7 +1243,7 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
 			   const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = aic3x_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -1348,7 +1348,7 @@ static int aic3x_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = aic3x;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -1374,7 +1374,7 @@ static int aic3x_probe(struct platform_device *pdev)
 static int aic3x_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	/* power down chip */
 	if (codec->control_data)
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index f530c1e6d9e8..796f34cac85d 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -981,7 +981,7 @@ static int twl4030_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u8 mode, old_mode, format, old_format;
 
 
@@ -1166,7 +1166,7 @@ EXPORT_SYMBOL_GPL(twl4030_dai);
 static int twl4030_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
@@ -1176,7 +1176,7 @@ static int twl4030_suspend(struct platform_device *pdev, pm_message_t state)
 static int twl4030_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 	twl4030_set_bias_level(codec, codec->suspend_bias_level);
@@ -1190,7 +1190,7 @@ static int twl4030_resume(struct platform_device *pdev)
 
 static int twl4030_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret = 0;
 
 	printk(KERN_INFO "TWL4030 Audio Codec init \n");
@@ -1251,7 +1251,7 @@ static int twl4030_probe(struct platform_device *pdev)
 	if (codec == NULL)
 		return -ENOMEM;
 
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -1265,7 +1265,7 @@ static int twl4030_probe(struct platform_device *pdev)
 static int twl4030_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	printk(KERN_INFO "TWL4030 Audio Codec remove\n");
 	snd_soc_free_pcms(socdev);
diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c
index 277825d155a6..661599295ca7 100644
--- a/sound/soc/codecs/uda134x.c
+++ b/sound/soc/codecs/uda134x.c
@@ -173,7 +173,7 @@ static int uda134x_startup(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct uda134x_priv *uda134x = codec->private_data;
 	struct snd_pcm_runtime *master_runtime;
 
@@ -206,7 +206,7 @@ static void uda134x_shutdown(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct uda134x_priv *uda134x = codec->private_data;
 
 	if (uda134x->master_substream == substream)
@@ -221,7 +221,7 @@ static int uda134x_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct uda134x_priv *uda134x = codec->private_data;
 	u8 hw_params;
 
@@ -492,11 +492,11 @@ static int uda134x_soc_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-	if (socdev->codec == NULL)
+	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
+	if (socdev->card->codec == NULL)
 		return ret;
 
-	codec = socdev->codec;
+	codec = socdev->card->codec;
 
 	uda134x = kzalloc(sizeof(struct uda134x_priv), GFP_KERNEL);
 	if (uda134x == NULL)
@@ -584,7 +584,7 @@ priv_err:
 static int uda134x_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	uda134x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 	uda134x_set_bias_level(codec, SND_SOC_BIAS_OFF);
@@ -604,7 +604,7 @@ static int uda134x_soc_suspend(struct platform_device *pdev,
 						pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	uda134x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 	uda134x_set_bias_level(codec, SND_SOC_BIAS_OFF);
@@ -614,7 +614,7 @@ static int uda134x_soc_suspend(struct platform_device *pdev,
 static int uda134x_soc_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	uda134x_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
 	uda134x_set_bias_level(codec, SND_SOC_BIAS_ON);
diff --git a/sound/soc/codecs/uda1380.c b/sound/soc/codecs/uda1380.c
index a957b4365b9d..98e4a6560f06 100644
--- a/sound/soc/codecs/uda1380.c
+++ b/sound/soc/codecs/uda1380.c
@@ -397,7 +397,7 @@ static int uda1380_pcm_prepare(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int reg, reg_start, reg_end, clk;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -430,7 +430,7 @@ static int uda1380_pcm_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 clk = uda1380_read_reg_cache(codec, UDA1380_CLK);
 
 	/* set WSPLL power and divider if running from this clock */
@@ -469,7 +469,7 @@ static void uda1380_pcm_shutdown(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 clk = uda1380_read_reg_cache(codec, UDA1380_CLK);
 
 	/* shut down WSPLL power if running from this clock */
@@ -591,7 +591,7 @@ EXPORT_SYMBOL_GPL(uda1380_dai);
 static int uda1380_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	uda1380_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
@@ -600,7 +600,7 @@ static int uda1380_suspend(struct platform_device *pdev, pm_message_t state)
 static int uda1380_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u16 *cache = codec->reg_cache;
@@ -622,7 +622,7 @@ static int uda1380_resume(struct platform_device *pdev)
  */
 static int uda1380_init(struct snd_soc_device *socdev, int dac_clk)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret = 0;
 
 	codec->name = "UDA1380";
@@ -688,7 +688,7 @@ static int uda1380_i2c_probe(struct i2c_client *i2c,
 {
 	struct snd_soc_device *socdev = uda1380_socdev;
 	struct uda1380_setup_data *setup = socdev->codec_data;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -779,7 +779,7 @@ static int uda1380_probe(struct platform_device *pdev)
 	if (codec == NULL)
 		return -ENOMEM;
 
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -803,7 +803,7 @@ static int uda1380_probe(struct platform_device *pdev)
 static int uda1380_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		uda1380_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index 2e0db29b4998..75d3438ccb87 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -1301,7 +1301,7 @@ static int wm8350_set_bias_level(struct snd_soc_codec *codec,
 static int wm8350_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
@@ -1310,7 +1310,7 @@ static int wm8350_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8350_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
@@ -1423,8 +1423,8 @@ static int wm8350_probe(struct platform_device *pdev)
 
 	BUG_ON(!wm8350_codec);
 
-	socdev->codec = wm8350_codec;
-	codec = socdev->codec;
+	socdev->card->codec = wm8350_codec;
+	codec = socdev->card->codec;
 	wm8350 = codec->control_data;
 	priv = codec->private_data;
 
@@ -1498,7 +1498,7 @@ card_err:
 static int wm8350_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8350 *wm8350 = codec->control_data;
 	struct wm8350_data *priv = codec->private_data;
 	int ret;
diff --git a/sound/soc/codecs/wm8510.c b/sound/soc/codecs/wm8510.c
index abe7cce87714..f01078cfbd72 100644
--- a/sound/soc/codecs/wm8510.c
+++ b/sound/soc/codecs/wm8510.c
@@ -452,7 +452,7 @@ static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 iface = wm8510_read_reg_cache(codec, WM8510_IFACE) & 0x19f;
 	u16 adn = wm8510_read_reg_cache(codec, WM8510_ADD) & 0x1f1;
 
@@ -581,7 +581,7 @@ EXPORT_SYMBOL_GPL(wm8510_dai);
 static int wm8510_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
@@ -590,7 +590,7 @@ static int wm8510_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8510_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u16 *cache = codec->reg_cache;
@@ -612,7 +612,7 @@ static int wm8510_resume(struct platform_device *pdev)
  */
 static int wm8510_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret = 0;
 
 	codec->name = "WM8510";
@@ -670,7 +670,7 @@ static int wm8510_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = wm8510_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -751,7 +751,7 @@ err_driver:
 static int __devinit wm8510_spi_probe(struct spi_device *spi)
 {
 	struct snd_soc_device *socdev = wm8510_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	codec->control_data = spi;
@@ -817,7 +817,7 @@ static int wm8510_probe(struct platform_device *pdev)
 	if (codec == NULL)
 		return -ENOMEM;
 
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -847,7 +847,7 @@ static int wm8510_probe(struct platform_device *pdev)
 static int wm8510_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index 3faf0e70ce10..d3c51ba5e6f9 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -539,7 +539,7 @@ static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 paifb = wm8580_read(codec, WM8580_PAIF3 + dai->id);
 
 	paifb &= ~WM8580_AIF_LENGTH_MASK;
@@ -816,7 +816,7 @@ EXPORT_SYMBOL_GPL(wm8580_dai);
  */
 static int wm8580_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret = 0;
 
 	codec->name = "WM8580";
@@ -888,7 +888,7 @@ static int wm8580_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = wm8580_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -986,7 +986,7 @@ static int wm8580_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = wm8580;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -1007,7 +1007,7 @@ static int wm8580_probe(struct platform_device *pdev)
 static int wm8580_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8580_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index f90dc52e975d..f8363b308895 100644
--- a/sound/soc/codecs/wm8728.c
+++ b/sound/soc/codecs/wm8728.c
@@ -137,7 +137,7 @@ static int wm8728_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 dac = wm8728_read_reg_cache(codec, WM8728_DACCTL);
 
 	dac &= ~0x18;
@@ -264,7 +264,7 @@ EXPORT_SYMBOL_GPL(wm8728_dai);
 static int wm8728_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
@@ -274,7 +274,7 @@ static int wm8728_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8728_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8728_set_bias_level(codec, codec->suspend_bias_level);
 
@@ -287,7 +287,7 @@ static int wm8728_resume(struct platform_device *pdev)
  */
 static int wm8728_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret = 0;
 
 	codec->name = "WM8728";
@@ -349,7 +349,7 @@ static int wm8728_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = wm8728_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -430,7 +430,7 @@ err_driver:
 static int __devinit wm8728_spi_probe(struct spi_device *spi)
 {
 	struct snd_soc_device *socdev = wm8728_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	codec->control_data = spi;
@@ -494,7 +494,7 @@ static int wm8728_probe(struct platform_device *pdev)
 	if (codec == NULL)
 		return -ENOMEM;
 
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -527,7 +527,7 @@ static int wm8728_probe(struct platform_device *pdev)
 static int wm8728_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 96d6e1aeaf43..0150fe53a65d 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -253,7 +253,7 @@ static int wm8731_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8731_priv *wm8731 = codec->private_data;
 	u16 iface = wm8731_read_reg_cache(codec, WM8731_IFACE) & 0xfff3;
 	int i = get_coeff(wm8731->sysclk, params_rate(params));
@@ -283,7 +283,7 @@ static int wm8731_pcm_prepare(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	/* set active */
 	wm8731_write(codec, WM8731_ACTIVE, 0x0001);
@@ -296,7 +296,7 @@ static void wm8731_shutdown(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	/* deactivate */
 	if (!codec->active) {
@@ -458,7 +458,7 @@ EXPORT_SYMBOL_GPL(wm8731_dai);
 static int wm8731_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8731_write(codec, WM8731_ACTIVE, 0x0);
 	wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF);
@@ -468,7 +468,7 @@ static int wm8731_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8731_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u16 *cache = codec->reg_cache;
@@ -490,7 +490,7 @@ static int wm8731_resume(struct platform_device *pdev)
  */
 static int wm8731_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int reg, ret = 0;
 
 	codec->name = "WM8731";
@@ -561,7 +561,7 @@ static int wm8731_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = wm8731_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -642,7 +642,7 @@ err_driver:
 static int __devinit wm8731_spi_probe(struct spi_device *spi)
 {
 	struct snd_soc_device *socdev = wm8731_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	codec->control_data = spi;
@@ -716,7 +716,7 @@ static int wm8731_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = wm8731;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -750,7 +750,7 @@ static int wm8731_probe(struct platform_device *pdev)
 static int wm8731_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c
index 1578569793a2..96afb86addc6 100644
--- a/sound/soc/codecs/wm8750.c
+++ b/sound/soc/codecs/wm8750.c
@@ -604,7 +604,7 @@ static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8750_priv *wm8750 = codec->private_data;
 	u16 iface = wm8750_read_reg_cache(codec, WM8750_IFACE) & 0x1f3;
 	u16 srate = wm8750_read_reg_cache(codec, WM8750_SRATE) & 0x1c0;
@@ -712,7 +712,7 @@ static void wm8750_work(struct work_struct *work)
 static int wm8750_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
@@ -721,7 +721,7 @@ static int wm8750_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8750_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u16 *cache = codec->reg_cache;
@@ -754,7 +754,7 @@ static int wm8750_resume(struct platform_device *pdev)
  */
 static int wm8750_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int reg, ret = 0;
 
 	codec->name = "WM8750";
@@ -836,7 +836,7 @@ static int wm8750_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = wm8750_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -917,7 +917,7 @@ err_driver:
 static int __devinit wm8750_spi_probe(struct spi_device *spi)
 {
 	struct snd_soc_device *socdev = wm8750_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	codec->control_data = spi;
@@ -989,7 +989,7 @@ static int wm8750_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = wm8750;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -1043,7 +1043,7 @@ static int run_delayed_work(struct delayed_work *dwork)
 static int wm8750_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 5a1c1fca120f..502766dce861 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -912,7 +912,7 @@ static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8753_priv *wm8753 = codec->private_data;
 	u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3;
 	u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f;
@@ -1146,7 +1146,7 @@ static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8753_priv *wm8753 = codec->private_data;
 	u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0;
 	u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3;
@@ -1483,7 +1483,7 @@ static void wm8753_work(struct work_struct *work)
 static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	/* we only need to suspend if we are a valid card */
 	if (!codec->card)
@@ -1496,7 +1496,7 @@ static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8753_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u16 *cache = codec->reg_cache;
@@ -1533,7 +1533,7 @@ static int wm8753_resume(struct platform_device *pdev)
  */
 static int wm8753_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int reg, ret = 0;
 
 	codec->name = "WM8753";
@@ -1624,7 +1624,7 @@ static int wm8753_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = wm8753_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -1705,7 +1705,7 @@ err_driver:
 static int __devinit wm8753_spi_probe(struct spi_device *spi)
 {
 	struct snd_soc_device *socdev = wm8753_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	codec->control_data = spi;
@@ -1780,7 +1780,7 @@ static int wm8753_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = wm8753;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -1832,7 +1832,7 @@ static int run_delayed_work(struct delayed_work *dwork)
 static int wm8753_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index 1e08d4f065f2..85c0f1bc6766 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -720,7 +720,7 @@ static int wm8900_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 reg;
 
 	reg = wm8900_read(codec, WM8900_REG_AUDIO1) & ~0x60;
@@ -1210,7 +1210,7 @@ static int wm8900_set_bias_level(struct snd_soc_codec *codec,
 static int wm8900_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8900_priv *wm8900 = codec->private_data;
 	int fll_out = wm8900->fll_out;
 	int fll_in  = wm8900->fll_in;
@@ -1234,7 +1234,7 @@ static int wm8900_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8900_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8900_priv *wm8900 = codec->private_data;
 	u16 *cache;
 	int i, ret;
@@ -1414,7 +1414,7 @@ static int wm8900_probe(struct platform_device *pdev)
 	}
 
 	codec = wm8900_codec;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 
 	/* Register pcms */
 	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 6ff34b957dce..d36b2b1edf19 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1261,7 +1261,7 @@ static int wm8903_startup(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8903_priv *wm8903 = codec->private_data;
 	struct i2c_client *i2c = codec->control_data;
 	struct snd_pcm_runtime *master_runtime;
@@ -1303,7 +1303,7 @@ static void wm8903_shutdown(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8903_priv *wm8903 = codec->private_data;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@@ -1323,7 +1323,7 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8903_priv *wm8903 = codec->private_data;
 	struct i2c_client *i2c = codec->control_data;
 	int fs = params_rate(params);
@@ -1527,7 +1527,7 @@ EXPORT_SYMBOL_GPL(wm8903_dai);
 static int wm8903_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
@@ -1537,7 +1537,7 @@ static int wm8903_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8903_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct i2c_client *i2c = codec->control_data;
 	int i;
 	u16 *reg_cache = codec->reg_cache;
@@ -1713,7 +1713,7 @@ static int wm8903_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	socdev->codec = wm8903_codec;
+	socdev->card->codec = wm8903_codec;
 
 	/* register pcms */
 	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
@@ -1722,9 +1722,9 @@ static int wm8903_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	snd_soc_add_controls(socdev->codec, wm8903_snd_controls,
+	snd_soc_add_controls(socdev->card->codec, wm8903_snd_controls,
 				ARRAY_SIZE(wm8903_snd_controls));
-	wm8903_add_widgets(socdev->codec);
+	wm8903_add_widgets(socdev->card->codec);
 
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
@@ -1745,7 +1745,7 @@ err:
 static int wm8903_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index c8bd9b06f330..24d4c905a011 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -531,7 +531,7 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm8971_priv *wm8971 = codec->private_data;
 	u16 iface = wm8971_read_reg_cache(codec, WM8971_IFACE) & 0x1f3;
 	u16 srate = wm8971_read_reg_cache(codec, WM8971_SRATE) & 0x1c0;
@@ -637,7 +637,7 @@ static void wm8971_work(struct work_struct *work)
 static int wm8971_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
@@ -646,7 +646,7 @@ static int wm8971_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8971_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u16 *cache = codec->reg_cache;
@@ -677,7 +677,7 @@ static int wm8971_resume(struct platform_device *pdev)
 
 static int wm8971_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int reg, ret = 0;
 
 	codec->name = "WM8971";
@@ -758,7 +758,7 @@ static int wm8971_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = wm8971_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -859,7 +859,7 @@ static int wm8971_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = wm8971;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -894,7 +894,7 @@ static int wm8971_probe(struct platform_device *pdev)
 static int wm8971_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index f93c0955ed9d..6af1d399b316 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -1162,7 +1162,7 @@ static int wm8990_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 audio1 = wm8990_read_reg_cache(codec, WM8990_AUDIO_INTERFACE_1);
 
 	audio1 &= ~WM8990_AIF_WL_MASK;
@@ -1361,7 +1361,7 @@ EXPORT_SYMBOL_GPL(wm8990_dai);
 static int wm8990_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	/* we only need to suspend if we are a valid card */
 	if (!codec->card)
@@ -1374,7 +1374,7 @@ static int wm8990_suspend(struct platform_device *pdev, pm_message_t state)
 static int wm8990_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i;
 	u8 data[2];
 	u16 *cache = codec->reg_cache;
@@ -1402,7 +1402,7 @@ static int wm8990_resume(struct platform_device *pdev)
  */
 static int wm8990_init(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 reg;
 	int ret = 0;
 
@@ -1480,7 +1480,7 @@ static int wm8990_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct snd_soc_device *socdev = wm8990_socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret;
 
 	i2c_set_clientdata(i2c, codec);
@@ -1579,7 +1579,7 @@ static int wm8990_probe(struct platform_device *pdev)
 	}
 
 	codec->private_data = wm8990;
-	socdev->codec = codec;
+	socdev->card->codec = codec;
 	mutex_init(&codec->mutex);
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);
@@ -1605,7 +1605,7 @@ static int wm8990_probe(struct platform_device *pdev)
 static int wm8990_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec->control_data)
 		wm8990_set_bias_level(codec, SND_SOC_BIAS_OFF);
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index d5c81bb3decb..2e9e06b2daaf 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -249,7 +249,7 @@ static int ac97_prepare(struct snd_pcm_substream *substream,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int reg;
 	u16 vra;
 
@@ -323,10 +323,11 @@ static int wm9705_soc_probe(struct platform_device *pdev)
 
 	printk(KERN_INFO "WM9705 SoC Audio Codec\n");
 
-	socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-	if (socdev->codec == NULL)
+	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec),
+				      GFP_KERNEL);
+	if (socdev->card->codec == NULL)
 		return -ENOMEM;
-	codec = socdev->codec;
+	codec = socdev->card->codec;
 	mutex_init(&codec->mutex);
 
 	codec->reg_cache = kmemdup(wm9705_reg, sizeof(wm9705_reg), GFP_KERNEL);
@@ -380,15 +381,15 @@ pcm_err:
 codec_err:
 	kfree(codec->reg_cache);
 cache_err:
-	kfree(socdev->codec);
-	socdev->codec = NULL;
+	kfree(socdev->card->codec);
+	socdev->card->codec = NULL;
 	return ret;
 }
 
 static int wm9705_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec == NULL)
 		return 0;
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 4dc90d67530e..b3a8be77676e 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -478,7 +478,7 @@ static int ac97_prepare(struct snd_pcm_substream *substream,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int reg;
 	u16 vra;
 
@@ -499,7 +499,7 @@ static int ac97_aux_prepare(struct snd_pcm_substream *substream,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 vra, xsle;
 
 	vra = ac97_read(codec, AC97_EXTENDED_STATUS);
@@ -592,7 +592,7 @@ static int wm9712_soc_suspend(struct platform_device *pdev,
 	pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	wm9712_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
@@ -601,7 +601,7 @@ static int wm9712_soc_suspend(struct platform_device *pdev,
 static int wm9712_soc_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int i, ret;
 	u16 *cache = codec->reg_cache;
 
@@ -637,10 +637,11 @@ static int wm9712_soc_probe(struct platform_device *pdev)
 
 	printk(KERN_INFO "WM9711/WM9712 SoC Audio Codec %s\n", WM9712_VERSION);
 
-	socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-	if (socdev->codec == NULL)
+	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec),
+				      GFP_KERNEL);
+	if (socdev->card->codec == NULL)
 		return -ENOMEM;
-	codec = socdev->codec;
+	codec = socdev->card->codec;
 	mutex_init(&codec->mutex);
 
 	codec->reg_cache = kmemdup(wm9712_reg, sizeof(wm9712_reg), GFP_KERNEL);
@@ -704,15 +705,15 @@ codec_err:
 	kfree(codec->reg_cache);
 
 cache_err:
-	kfree(socdev->codec);
-	socdev->codec = NULL;
+	kfree(socdev->card->codec);
+	socdev->card->codec = NULL;
 	return ret;
 }
 
 static int wm9712_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec == NULL)
 		return 0;
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 0e60e16973d4..54db9c524988 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -1115,7 +1115,7 @@ static int wm9713_soc_suspend(struct platform_device *pdev,
 	pm_message_t state)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	u16 reg;
 
 	/* Disable everything except touchpanel - that will be handled
@@ -1133,7 +1133,7 @@ static int wm9713_soc_suspend(struct platform_device *pdev,
 static int wm9713_soc_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	struct wm9713_priv *wm9713 = codec->private_data;
 	int i, ret;
 	u16 *cache = codec->reg_cache;
@@ -1174,10 +1174,11 @@ static int wm9713_soc_probe(struct platform_device *pdev)
 
 	printk(KERN_INFO "WM9713/WM9714 SoC Audio Codec %s\n", WM9713_VERSION);
 
-	socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-	if (socdev->codec == NULL)
+	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec),
+				      GFP_KERNEL);
+	if (socdev->card->codec == NULL)
 		return -ENOMEM;
-	codec = socdev->codec;
+	codec = socdev->card->codec;
 	mutex_init(&codec->mutex);
 
 	codec->reg_cache = kmemdup(wm9713_reg, sizeof(wm9713_reg), GFP_KERNEL);
@@ -1249,15 +1250,15 @@ priv_err:
 	kfree(codec->reg_cache);
 
 cache_err:
-	kfree(socdev->codec);
-	socdev->codec = NULL;
+	kfree(socdev->card->codec);
+	socdev->card->codec = NULL;
 	return ret;
 }
 
 static int wm9713_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	if (codec == NULL)
 		return 0;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 8313d52a6e8c..f18c7a3e36d1 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -234,7 +234,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		cpu_dai->capture.active = codec_dai->capture.active = 1;
 	cpu_dai->active = codec_dai->active = 1;
 	cpu_dai->runtime = runtime;
-	socdev->codec->active++;
+	card->codec->active++;
 	mutex_unlock(&pcm_mutex);
 	return 0;
 
@@ -264,7 +264,7 @@ static void close_delayed_work(struct work_struct *work)
 	struct snd_soc_card *card = container_of(work, struct snd_soc_card,
 						 delayed_work.work);
 	struct snd_soc_device *socdev = card->socdev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = card->codec;
 	struct snd_soc_dai *codec_dai;
 	int i;
 
@@ -319,7 +319,7 @@ static int soc_codec_close(struct snd_pcm_substream *substream)
 	struct snd_soc_platform *platform = card->platform;
 	struct snd_soc_dai *cpu_dai = machine->cpu_dai;
 	struct snd_soc_dai *codec_dai = machine->codec_dai;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = card->codec;
 
 	mutex_lock(&pcm_mutex);
 
@@ -387,7 +387,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 	struct snd_soc_platform *platform = card->platform;
 	struct snd_soc_dai *cpu_dai = machine->cpu_dai;
 	struct snd_soc_dai *codec_dai = machine->codec_dai;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = card->codec;
 	int ret = 0;
 
 	mutex_lock(&pcm_mutex);
@@ -553,7 +553,7 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 	struct snd_soc_platform *platform = card->platform;
 	struct snd_soc_dai *cpu_dai = machine->cpu_dai;
 	struct snd_soc_dai *codec_dai = machine->codec_dai;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = card->codec;
 
 	mutex_lock(&pcm_mutex);
 
@@ -629,7 +629,7 @@ static int soc_suspend(struct platform_device *pdev, pm_message_t state)
 	struct snd_soc_card *card = socdev->card;
 	struct snd_soc_platform *platform = card->platform;
 	struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = card->codec;
 	int i;
 
 	/* Due to the resume being scheduled into a workqueue we could
@@ -705,7 +705,7 @@ static void soc_resume_deferred(struct work_struct *work)
 	struct snd_soc_device *socdev = card->socdev;
 	struct snd_soc_platform *platform = card->platform;
 	struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = card->codec;
 	struct platform_device *pdev = to_platform_device(socdev->dev);
 	int i;
 
@@ -982,8 +982,8 @@ static struct platform_driver soc_driver = {
 static int soc_new_pcm(struct snd_soc_device *socdev,
 	struct snd_soc_dai_link *dai_link, int num)
 {
-	struct snd_soc_codec *codec = socdev->codec;
 	struct snd_soc_card *card = socdev->card;
+	struct snd_soc_codec *codec = card->codec;
 	struct snd_soc_platform *platform = card->platform;
 	struct snd_soc_dai *codec_dai = dai_link->codec_dai;
 	struct snd_soc_dai *cpu_dai = dai_link->cpu_dai;
@@ -998,7 +998,7 @@ static int soc_new_pcm(struct snd_soc_device *socdev,
 
 	rtd->dai = dai_link;
 	rtd->socdev = socdev;
-	codec_dai->codec = socdev->codec;
+	codec_dai->codec = card->codec;
 
 	/* check client and interface hw capabilities */
 	sprintf(new_name, "%s %s-%d", dai_link->stream_name, codec_dai->name,
@@ -1048,9 +1048,8 @@ static int soc_new_pcm(struct snd_soc_device *socdev,
 }
 
 /* codec register dump */
-static ssize_t soc_codec_reg_show(struct snd_soc_device *devdata, char *buf)
+static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
 {
-	struct snd_soc_codec *codec = devdata->codec;
 	int i, step = 1, count = 0;
 
 	if (!codec->reg_cache_size)
@@ -1090,7 +1089,7 @@ static ssize_t codec_reg_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct snd_soc_device *devdata = dev_get_drvdata(dev);
-	return soc_codec_reg_show(devdata, buf);
+	return soc_codec_reg_show(devdata->card->codec, buf);
 }
 
 static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
@@ -1107,12 +1106,10 @@ static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
 {
 	ssize_t ret;
 	struct snd_soc_codec *codec = file->private_data;
-	struct device *card_dev = codec->card->dev;
-	struct snd_soc_device *devdata = card_dev->driver_data;
 	char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
-	ret = soc_codec_reg_show(devdata, buf);
+	ret = soc_codec_reg_show(codec, buf);
 	if (ret >= 0)
 		ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 	kfree(buf);
@@ -1309,8 +1306,8 @@ EXPORT_SYMBOL_GPL(snd_soc_test_bits);
  */
 int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid)
 {
-	struct snd_soc_codec *codec = socdev->codec;
 	struct snd_soc_card *card = socdev->card;
+	struct snd_soc_codec *codec = card->codec;
 	int ret = 0, i;
 
 	mutex_lock(&codec->mutex);
@@ -1355,8 +1352,8 @@ EXPORT_SYMBOL_GPL(snd_soc_new_pcms);
  */
 int snd_soc_init_card(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
 	struct snd_soc_card *card = socdev->card;
+	struct snd_soc_codec *codec = card->codec;
 	int ret = 0, i, ac97 = 0, err = 0;
 
 	for (i = 0; i < card->num_links; i++) {
@@ -1404,7 +1401,7 @@ int snd_soc_init_card(struct snd_soc_device *socdev)
 	if (err < 0)
 		printk(KERN_WARNING "asoc: failed to add codec sysfs files\n");
 
-	soc_init_codec_debugfs(socdev->codec);
+	soc_init_codec_debugfs(codec);
 	mutex_unlock(&codec->mutex);
 
 out:
@@ -1421,14 +1418,14 @@ EXPORT_SYMBOL_GPL(snd_soc_init_card);
  */
 void snd_soc_free_pcms(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 #ifdef CONFIG_SND_SOC_AC97_BUS
 	struct snd_soc_dai *codec_dai;
 	int i;
 #endif
 
 	mutex_lock(&codec->mutex);
-	soc_cleanup_codec_debugfs(socdev->codec);
+	soc_cleanup_codec_debugfs(codec);
 #ifdef CONFIG_SND_SOC_AC97_BUS
 	for (i = 0; i < codec->num_dai; i++) {
 		codec_dai = &codec->dai[i];
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 54b4564b82b4..f4a8753c84c0 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -817,7 +817,7 @@ static ssize_t dapm_widget_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct snd_soc_device *devdata = dev_get_drvdata(dev);
-	struct snd_soc_codec *codec = devdata->codec;
+	struct snd_soc_codec *codec = devdata->card->codec;
 	struct snd_soc_dapm_widget *w;
 	int count = 0;
 	char *state = "not set";
@@ -1552,8 +1552,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
 int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
 				enum snd_soc_bias_level level)
 {
-	struct snd_soc_codec *codec = socdev->codec;
 	struct snd_soc_card *card = socdev->card;
+	struct snd_soc_codec *codec = socdev->card->codec;
 	int ret = 0;
 
 	if (card->set_bias_level)
@@ -1645,7 +1645,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
  */
 void snd_soc_dapm_free(struct snd_soc_device *socdev)
 {
-	struct snd_soc_codec *codec = socdev->codec;
+	struct snd_soc_codec *codec = socdev->card->codec;
 
 	snd_soc_dapm_sys_remove(socdev->dev);
 	dapm_free_widgets(codec);
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index 8cc00c3cdf34..ab64a30bedde 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -34,7 +34,7 @@ int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type,
 	jack->card = card;
 	INIT_LIST_HEAD(&jack->pins);
 
-	return snd_jack_new(card->socdev->codec->card, id, type, &jack->jack);
+	return snd_jack_new(card->codec->card, id, type, &jack->jack);
 }
 EXPORT_SYMBOL_GPL(snd_soc_jack_new);
 
@@ -54,7 +54,7 @@ EXPORT_SYMBOL_GPL(snd_soc_jack_new);
  */
 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
 {
-	struct snd_soc_codec *codec = jack->card->socdev->codec;
+	struct snd_soc_codec *codec = jack->card->codec;
 	struct snd_soc_jack_pin *pin;
 	int enable;
 	int oldstatus;
-- 
cgit v1.2.3


From d5a9e24afb4ab38110ebb777588ea0bd0eacbd0a Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 27 Jan 2009 16:22:11 -0800
Subject: net: Allow RX queue selection to seed TX queue hashing.

The idea is that drivers which implement multiqueue RX
pre-seed the SKB by recording the RX queue selected by
the hardware.

If such a seed is found on TX, we'll use that to select
the outgoing TX queue.

This helps get more consistent load balancing on router
and firewall loads.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 15 +++++++++++++++
 net/core/dev.c         |  8 ++++++++
 2 files changed, 23 insertions(+)

(limited to 'include')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cf2cb50f77d1..a2c2378a9c58 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1904,6 +1904,21 @@ static inline void skb_copy_queue_mapping(struct sk_buff *to, const struct sk_bu
 	to->queue_mapping = from->queue_mapping;
 }
 
+static inline void skb_record_rx_queue(struct sk_buff *skb, u16 rx_queue)
+{
+	skb->queue_mapping = rx_queue + 1;
+}
+
+static inline u16 skb_get_rx_queue(struct sk_buff *skb)
+{
+	return skb->queue_mapping - 1;
+}
+
+static inline bool skb_rx_queue_recorded(struct sk_buff *skb)
+{
+	return (skb->queue_mapping != 0);
+}
+
 #ifdef CONFIG_XFRM
 static inline struct sec_path *skb_sec_path(struct sk_buff *skb)
 {
diff --git a/net/core/dev.c b/net/core/dev.c
index 5379b0c1190a..b21ad0b47aae 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1722,6 +1722,13 @@ static u16 simple_tx_hash(struct net_device *dev, struct sk_buff *skb)
 		simple_tx_hashrnd_initialized = 1;
 	}
 
+	if (skb_rx_queue_recorded(skb)) {
+		u32 val = skb_get_rx_queue(skb);
+
+		hash = jhash_1word(val, simple_tx_hashrnd);
+		goto out;
+	}
+
 	switch (skb->protocol) {
 	case htons(ETH_P_IP):
 		if (!(ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)))
@@ -1759,6 +1766,7 @@ static u16 simple_tx_hash(struct net_device *dev, struct sk_buff *skb)
 
 	hash = jhash_3words(addr1, addr2, ports, simple_tx_hashrnd);
 
+out:
 	return (u16) (((u64) hash * dev->real_num_tx_queues) >> 32);
 }
 
-- 
cgit v1.2.3


From 598804cd041c395ce87302af9088b2f227196185 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <avorontsov@ru.mvista.com>
Date: Fri, 9 Jan 2009 00:55:39 +0300
Subject: powerpc/fsl_pci: Add MPC83xx PCI-E controller RC mode support

This patch adds support for PCI-Express controllers as found on the
newer MPC83xx chips.

The work is loosely based on the Tony Li's patch[1], but unlike the
original patch, this patch implements sliding window for the Type 1
transactions using outbound window translations, so we don't have to
ioremap the whole PCI-E configuration space.

[1] http://ozlabs.org/pipermail/linuxppc-dev/2008-January/049028.html

Signed-off-by: Tony Li <tony.li@freescale.com>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 arch/powerpc/sysdev/fsl_pci.c | 244 +++++++++++++++++++++++++++++++++++++-----
 include/linux/pci_ids.h       |   8 ++
 2 files changed, 228 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 9817f63723dd..78021d8afc53 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -1,12 +1,16 @@
 /*
  * MPC83xx/85xx/86xx PCI/PCIE support routing.
  *
- * Copyright 2007,2008 Freescale Semiconductor, Inc
+ * Copyright 2007-2009 Freescale Semiconductor, Inc.
+ * Copyright 2008-2009 MontaVista Software, Inc.
  *
  * Initial author: Xianghua Xiao <x.xiao@freescale.com>
  * Recode: ZHANG WEI <wei.zhang@freescale.com>
  * Rewrite the routing for Frescale PCI and PCI Express
  * 	Roy Zang <tie-fei.zang@freescale.com>
+ * MPC83xx PCI-Express support:
+ * 	Tony Li <tony.li@freescale.com>
+ * 	Anton Vorontsov <avorontsov@ru.mvista.com>
  *
  * 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
@@ -27,6 +31,29 @@
 #include <sysdev/fsl_soc.h>
 #include <sysdev/fsl_pci.h>
 
+static int fsl_pcie_bus_fixup;
+
+static void __init quirk_fsl_pcie_header(struct pci_dev *dev)
+{
+	/* if we aren't a PCIe don't bother */
+	if (!pci_find_capability(dev, PCI_CAP_ID_EXP))
+		return;
+
+	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
+	fsl_pcie_bus_fixup = 1;
+	return;
+}
+
+static int __init fsl_pcie_check_link(struct pci_controller *hose)
+{
+	u32 val;
+
+	early_read_config_dword(hose, 0, 0, PCIE_LTSSM, &val);
+	if (val < PCIE_LTSSM_L0)
+		return 1;
+	return 0;
+}
+
 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
 static int __init setup_one_atmu(struct ccsr_pci __iomem *pci,
 	unsigned int index, const struct resource *res,
@@ -159,28 +186,6 @@ static void __init setup_pci_pcsrbar(struct pci_controller *hose)
 #endif
 }
 
-static int fsl_pcie_bus_fixup;
-
-static void __init quirk_fsl_pcie_header(struct pci_dev *dev)
-{
-	/* if we aren't a PCIe don't bother */
-	if (!pci_find_capability(dev, PCI_CAP_ID_EXP))
-		return ;
-
-	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
-	fsl_pcie_bus_fixup = 1;
-	return ;
-}
-
-static int __init fsl_pcie_check_link(struct pci_controller *hose)
-{
-	u32 val;
-	early_read_config_dword(hose, 0, 0, PCIE_LTSSM, &val);
-	if (val < PCIE_LTSSM_L0)
-		return 1;
-	return 0;
-}
-
 void fsl_pcibios_fixup_bus(struct pci_bus *bus)
 {
 	struct pci_controller *hose = (struct pci_controller *) bus->sysdata;
@@ -294,8 +299,184 @@ DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8610, quirk_fsl_pcie_header);
 #endif /* CONFIG_PPC_85xx || CONFIG_PPC_86xx */
 
 #if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_MPC512x)
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8314E, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8314, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8315E, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8315, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8377E, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8377, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8378E, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8378, quirk_fsl_pcie_header);
+
+struct mpc83xx_pcie_priv {
+	void __iomem *cfg_type0;
+	void __iomem *cfg_type1;
+	u32 dev_base;
+};
+
+/*
+ * With the convention of u-boot, the PCIE outbound window 0 serves
+ * as configuration transactions outbound.
+ */
+#define PEX_OUTWIN0_BAR		0xCA4
+#define PEX_OUTWIN0_TAL		0xCA8
+#define PEX_OUTWIN0_TAH		0xCAC
+
+static int mpc83xx_pcie_exclude_device(struct pci_bus *bus, unsigned int devfn)
+{
+	struct pci_controller *hose = bus->sysdata;
+
+	if (hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	/*
+	 * Workaround for the HW bug: for Type 0 configure transactions the
+	 * PCI-E controller does not check the device number bits and just
+	 * assumes that the device number bits are 0.
+	 */
+	if (bus->number == hose->first_busno ||
+			bus->primary == hose->first_busno) {
+		if (devfn & 0xf8)
+			return PCIBIOS_DEVICE_NOT_FOUND;
+	}
+
+	if (ppc_md.pci_exclude_device) {
+		if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
+			return PCIBIOS_DEVICE_NOT_FOUND;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static void __iomem *mpc83xx_pcie_remap_cfg(struct pci_bus *bus,
+					    unsigned int devfn, int offset)
+{
+	struct pci_controller *hose = bus->sysdata;
+	struct mpc83xx_pcie_priv *pcie = hose->dn->data;
+	u8 bus_no = bus->number - hose->first_busno;
+	u32 dev_base = bus_no << 24 | devfn << 16;
+	int ret;
+
+	ret = mpc83xx_pcie_exclude_device(bus, devfn);
+	if (ret)
+		return NULL;
+
+	offset &= 0xfff;
+
+	/* Type 0 */
+	if (bus->number == hose->first_busno)
+		return pcie->cfg_type0 + offset;
+
+	if (pcie->dev_base == dev_base)
+		goto mapped;
+
+	out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAL, dev_base);
+
+	pcie->dev_base = dev_base;
+mapped:
+	return pcie->cfg_type1 + offset;
+}
+
+static int mpc83xx_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
+				    int offset, int len, u32 *val)
+{
+	void __iomem *cfg_addr;
+
+	cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset);
+	if (!cfg_addr)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (len) {
+	case 1:
+		*val = in_8(cfg_addr);
+		break;
+	case 2:
+		*val = in_le16(cfg_addr);
+		break;
+	default:
+		*val = in_le32(cfg_addr);
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int mpc83xx_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
+				     int offset, int len, u32 val)
+{
+	void __iomem *cfg_addr;
+
+	cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset);
+	if (!cfg_addr)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (len) {
+	case 1:
+		out_8(cfg_addr, val);
+		break;
+	case 2:
+		out_le16(cfg_addr, val);
+		break;
+	default:
+		out_le32(cfg_addr, val);
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops mpc83xx_pcie_ops = {
+	.read = mpc83xx_pcie_read_config,
+	.write = mpc83xx_pcie_write_config,
+};
+
+static int __init mpc83xx_pcie_setup(struct pci_controller *hose,
+				     struct resource *reg)
+{
+	struct mpc83xx_pcie_priv *pcie;
+	u32 cfg_bar;
+	int ret = -ENOMEM;
+
+	pcie = zalloc_maybe_bootmem(sizeof(*pcie), GFP_KERNEL);
+	if (!pcie)
+		return ret;
+
+	pcie->cfg_type0 = ioremap(reg->start, resource_size(reg));
+	if (!pcie->cfg_type0)
+		goto err0;
+
+	cfg_bar = in_le32(pcie->cfg_type0 + PEX_OUTWIN0_BAR);
+	if (!cfg_bar) {
+		/* PCI-E isn't configured. */
+		ret = -ENODEV;
+		goto err1;
+	}
+
+	pcie->cfg_type1 = ioremap(cfg_bar, 0x1000);
+	if (!pcie->cfg_type1)
+		goto err1;
+
+	WARN_ON(hose->dn->data);
+	hose->dn->data = pcie;
+	hose->ops = &mpc83xx_pcie_ops;
+
+	out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAH, 0);
+	out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAL, 0);
+
+	if (fsl_pcie_check_link(hose))
+		hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK;
+
+	return 0;
+err1:
+	iounmap(pcie->cfg_type0);
+err0:
+	kfree(pcie);
+	return ret;
+
+}
+
 int __init mpc83xx_add_bridge(struct device_node *dev)
 {
+	int ret;
 	int len;
 	struct pci_controller *hose;
 	struct resource rsrc_reg;
@@ -303,6 +484,11 @@ int __init mpc83xx_add_bridge(struct device_node *dev)
 	const int *bus_range;
 	int primary;
 
+	if (!of_device_is_available(dev)) {
+		pr_warning("%s: disabled by the firmware.\n",
+			   dev->full_name);
+		return -ENODEV;
+	}
 	pr_debug("Adding PCI host bridge %s\n", dev->full_name);
 
 	/* Fetch host bridge registers address */
@@ -350,7 +536,14 @@ int __init mpc83xx_add_bridge(struct device_node *dev)
 	hose->first_busno = bus_range ? bus_range[0] : 0;
 	hose->last_busno = bus_range ? bus_range[1] : 0xff;
 
-	setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 4, 0);
+	if (of_device_is_compatible(dev, "fsl,mpc8314-pcie")) {
+		ret = mpc83xx_pcie_setup(hose, &rsrc_reg);
+		if (ret)
+			goto err0;
+	} else {
+		setup_indirect_pci(hose, rsrc_cfg.start,
+				   rsrc_cfg.start + 4, 0);
+	}
 
 	printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx. "
 	       "Firmware bus number: %d->%d\n",
@@ -365,5 +558,8 @@ int __init mpc83xx_add_bridge(struct device_node *dev)
 	pci_process_bridge_OF_ranges(hose, dev, primary);
 
 	return 0;
+err0:
+	pcibios_free_controller(hose);
+	return ret;
 }
 #endif /* CONFIG_PPC_83xx */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index febc10ed3858..ff9b7be2b791 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2217,6 +2217,14 @@
 #define PCI_DEVICE_ID_TDI_EHCI          0x0101
 
 #define PCI_VENDOR_ID_FREESCALE		0x1957
+#define PCI_DEVICE_ID_MPC8315E		0x00b4
+#define PCI_DEVICE_ID_MPC8315		0x00b5
+#define PCI_DEVICE_ID_MPC8314E		0x00b6
+#define PCI_DEVICE_ID_MPC8314		0x00b7
+#define PCI_DEVICE_ID_MPC8378E		0x00c4
+#define PCI_DEVICE_ID_MPC8378		0x00c5
+#define PCI_DEVICE_ID_MPC8377E		0x00c6
+#define PCI_DEVICE_ID_MPC8377		0x00c7
 #define PCI_DEVICE_ID_MPC8548E		0x0012
 #define PCI_DEVICE_ID_MPC8548		0x0013
 #define PCI_DEVICE_ID_MPC8543E		0x0014
-- 
cgit v1.2.3


From 3fb1b6ad0679ad671bd496712b2a088550ee86b2 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@igel.co.jp>
Date: Thu, 22 Jan 2009 09:55:59 +0000
Subject: sh: CMT clockevent platform driver

SuperH CMT clockevent driver.

Both 16-bit and 32-bit CMT versions are supported, but only 32-bit
is tested. This driver contains support for both clockevents and
clocksources, but no unregistration is supported at this point.

Works fine as clock source and/or event in periodic or oneshot mode.
Tested on sh7722 and sh7723, but should work with any cpu/architecture.

This version is lacking clocksource and early platform driver support
for now - this to minimize the amount of dependencies.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Kconfig              |   8 +
 drivers/clocksource/Makefile |   1 +
 drivers/clocksource/sh_cmt.c | 615 +++++++++++++++++++++++++++++++++++++++++++
 include/linux/sh_cmt.h       |  13 +
 4 files changed, 637 insertions(+)
 create mode 100644 drivers/clocksource/sh_cmt.c
 create mode 100644 include/linux/sh_cmt.h

(limited to 'include')

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ebabe518e729..5407e1295e51 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -397,6 +397,14 @@ source "arch/sh/boards/Kconfig"
 
 menu "Timer and clock configuration"
 
+config SH_TIMER_CMT
+	def_bool n
+	prompt "CMT support"
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	help
+	  This enables build of the CMT system timer driver.
+
 config SH_TMU
 	def_bool y
 	prompt "TMU timer support"
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 1525882190fd..1efb2879a94f 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_ATMEL_TCB_CLKSRC)	+= tcb_clksrc.o
 obj-$(CONFIG_X86_CYCLONE_TIMER)	+= cyclone.o
 obj-$(CONFIG_X86_PM_TIMER)	+= acpi_pm.o
 obj-$(CONFIG_SCx200HR_TIMER)	+= scx200_hrt.o
+obj-$(CONFIG_SH_TIMER_CMT)	+= sh_cmt.o
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
new file mode 100644
index 000000000000..7783b42f6914
--- /dev/null
+++ b/drivers/clocksource/sh_cmt.c
@@ -0,0 +1,615 @@
+/*
+ * SuperH Timer Support - CMT
+ *
+ *  Copyright (C) 2008 Magnus Damm
+ *
+ * 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
+ *
+ * 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/bootmem.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/irq.h>
+#include <linux/err.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/sh_cmt.h>
+
+struct sh_cmt_priv {
+	void __iomem *mapbase;
+	struct clk *clk;
+	unsigned long width; /* 16 or 32 bit version of hardware block */
+	unsigned long overflow_bit;
+	unsigned long clear_bits;
+	struct irqaction irqaction;
+	struct platform_device *pdev;
+
+	unsigned long flags;
+	unsigned long match_value;
+	unsigned long next_match_value;
+	unsigned long max_match_value;
+	unsigned long rate;
+	spinlock_t lock;
+	struct clock_event_device ced;
+	unsigned long total_cycles;
+};
+
+static DEFINE_SPINLOCK(sh_cmt_lock);
+
+#define CMSTR -1 /* shared register */
+#define CMCSR 0 /* channel register */
+#define CMCNT 1 /* channel register */
+#define CMCOR 2 /* channel register */
+
+static inline unsigned long sh_cmt_read(struct sh_cmt_priv *p, int reg_nr)
+{
+	struct sh_cmt_config *cfg = p->pdev->dev.platform_data;
+	void __iomem *base = p->mapbase;
+	unsigned long offs;
+
+	if (reg_nr == CMSTR) {
+		offs = 0;
+		base -= cfg->channel_offset;
+	} else
+		offs = reg_nr;
+
+	if (p->width == 16)
+		offs <<= 1;
+	else {
+		offs <<= 2;
+		if ((reg_nr == CMCNT) || (reg_nr == CMCOR))
+			return ioread32(base + offs);
+	}
+
+	return ioread16(base + offs);
+}
+
+static inline void sh_cmt_write(struct sh_cmt_priv *p, int reg_nr,
+				unsigned long value)
+{
+	struct sh_cmt_config *cfg = p->pdev->dev.platform_data;
+	void __iomem *base = p->mapbase;
+	unsigned long offs;
+
+	if (reg_nr == CMSTR) {
+		offs = 0;
+		base -= cfg->channel_offset;
+	} else
+		offs = reg_nr;
+
+	if (p->width == 16)
+		offs <<= 1;
+	else {
+		offs <<= 2;
+		if ((reg_nr == CMCNT) || (reg_nr == CMCOR)) {
+			iowrite32(value, base + offs);
+			return;
+		}
+	}
+
+	iowrite16(value, base + offs);
+}
+
+static unsigned long sh_cmt_get_counter(struct sh_cmt_priv *p,
+					int *has_wrapped)
+{
+	unsigned long v1, v2, v3;
+
+	/* Make sure the timer value is stable. Stolen from acpi_pm.c */
+	do {
+		v1 = sh_cmt_read(p, CMCNT);
+		v2 = sh_cmt_read(p, CMCNT);
+		v3 = sh_cmt_read(p, CMCNT);
+	} while (unlikely((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
+			  || (v3 > v1 && v3 < v2)));
+
+	*has_wrapped = sh_cmt_read(p, CMCSR) & p->overflow_bit;
+	return v2;
+}
+
+
+static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start)
+{
+	struct sh_cmt_config *cfg = p->pdev->dev.platform_data;
+	unsigned long flags, value;
+
+	/* start stop register shared by multiple timer channels */
+	spin_lock_irqsave(&sh_cmt_lock, flags);
+	value = sh_cmt_read(p, CMSTR);
+
+	if (start)
+		value |= 1 << cfg->timer_bit;
+	else
+		value &= ~(1 << cfg->timer_bit);
+
+	sh_cmt_write(p, CMSTR, value);
+	spin_unlock_irqrestore(&sh_cmt_lock, flags);
+}
+
+static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate)
+{
+	struct sh_cmt_config *cfg = p->pdev->dev.platform_data;
+	int ret;
+
+	/* enable clock */
+	ret = clk_enable(p->clk);
+	if (ret) {
+		pr_err("sh_cmt: cannot enable clock \"%s\"\n", cfg->clk);
+		return ret;
+	}
+	*rate = clk_get_rate(p->clk) / 8;
+
+	/* make sure channel is disabled */
+	sh_cmt_start_stop_ch(p, 0);
+
+	/* configure channel, periodic mode and maximum timeout */
+	if (p->width == 16)
+		sh_cmt_write(p, CMCSR, 0);
+	else
+		sh_cmt_write(p, CMCSR, 0x01a4);
+
+	sh_cmt_write(p, CMCOR, 0xffffffff);
+	sh_cmt_write(p, CMCNT, 0);
+
+	/* enable channel */
+	sh_cmt_start_stop_ch(p, 1);
+	return 0;
+}
+
+static void sh_cmt_disable(struct sh_cmt_priv *p)
+{
+	/* disable channel */
+	sh_cmt_start_stop_ch(p, 0);
+
+	/* stop clock */
+	clk_disable(p->clk);
+}
+
+/* private flags */
+#define FLAG_CLOCKEVENT (1 << 0)
+#define FLAG_CLOCKSOURCE (1 << 1)
+#define FLAG_REPROGRAM (1 << 2)
+#define FLAG_SKIPEVENT (1 << 3)
+#define FLAG_IRQCONTEXT (1 << 4)
+
+static void sh_cmt_clock_event_program_verify(struct sh_cmt_priv *p,
+					      int absolute)
+{
+	unsigned long new_match;
+	unsigned long value = p->next_match_value;
+	unsigned long delay = 0;
+	unsigned long now = 0;
+	int has_wrapped;
+
+	now = sh_cmt_get_counter(p, &has_wrapped);
+	p->flags |= FLAG_REPROGRAM; /* force reprogram */
+
+	if (has_wrapped) {
+		/* we're competing with the interrupt handler.
+		 *  -> let the interrupt handler reprogram the timer.
+		 *  -> interrupt number two handles the event.
+		 */
+		p->flags |= FLAG_SKIPEVENT;
+		return;
+	}
+
+	if (absolute)
+		now = 0;
+
+	do {
+		/* reprogram the timer hardware,
+		 * but don't save the new match value yet.
+		 */
+		new_match = now + value + delay;
+		if (new_match > p->max_match_value)
+			new_match = p->max_match_value;
+
+		sh_cmt_write(p, CMCOR, new_match);
+
+		now = sh_cmt_get_counter(p, &has_wrapped);
+		if (has_wrapped && (new_match > p->match_value)) {
+			/* we are changing to a greater match value,
+			 * so this wrap must be caused by the counter
+			 * matching the old value.
+			 * -> first interrupt reprograms the timer.
+			 * -> interrupt number two handles the event.
+			 */
+			p->flags |= FLAG_SKIPEVENT;
+			break;
+		}
+
+		if (has_wrapped) {
+			/* we are changing to a smaller match value,
+			 * so the wrap must be caused by the counter
+			 * matching the new value.
+			 * -> save programmed match value.
+			 * -> let isr handle the event.
+			 */
+			p->match_value = new_match;
+			break;
+		}
+
+		/* be safe: verify hardware settings */
+		if (now < new_match) {
+			/* timer value is below match value, all good.
+			 * this makes sure we won't miss any match events.
+			 * -> save programmed match value.
+			 * -> let isr handle the event.
+			 */
+			p->match_value = new_match;
+			break;
+		}
+
+		/* the counter has reached a value greater
+		 * than our new match value. and since the
+		 * has_wrapped flag isn't set we must have
+		 * programmed a too close event.
+		 * -> increase delay and retry.
+		 */
+		if (delay)
+			delay <<= 1;
+		else
+			delay = 1;
+
+		if (!delay)
+			pr_warning("sh_cmt: too long delay\n");
+
+	} while (delay);
+}
+
+static void sh_cmt_set_next(struct sh_cmt_priv *p, unsigned long delta)
+{
+	unsigned long flags;
+
+	if (delta > p->max_match_value)
+		pr_warning("sh_cmt: delta out of range\n");
+
+	spin_lock_irqsave(&p->lock, flags);
+	p->next_match_value = delta;
+	sh_cmt_clock_event_program_verify(p, 0);
+	spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id)
+{
+	struct sh_cmt_priv *p = dev_id;
+
+	/* clear flags */
+	sh_cmt_write(p, CMCSR, sh_cmt_read(p, CMCSR) & p->clear_bits);
+
+	/* update clock source counter to begin with if enabled
+	 * the wrap flag should be cleared by the timer specific
+	 * isr before we end up here.
+	 */
+	if (p->flags & FLAG_CLOCKSOURCE)
+		p->total_cycles += p->match_value;
+
+	if (!(p->flags & FLAG_REPROGRAM))
+		p->next_match_value = p->max_match_value;
+
+	p->flags |= FLAG_IRQCONTEXT;
+
+	if (p->flags & FLAG_CLOCKEVENT) {
+		if (!(p->flags & FLAG_SKIPEVENT)) {
+			if (p->ced.mode == CLOCK_EVT_MODE_ONESHOT) {
+				p->next_match_value = p->max_match_value;
+				p->flags |= FLAG_REPROGRAM;
+			}
+
+			p->ced.event_handler(&p->ced);
+		}
+	}
+
+	p->flags &= ~FLAG_SKIPEVENT;
+
+	if (p->flags & FLAG_REPROGRAM) {
+		p->flags &= ~FLAG_REPROGRAM;
+		sh_cmt_clock_event_program_verify(p, 1);
+
+		if (p->flags & FLAG_CLOCKEVENT)
+			if ((p->ced.mode == CLOCK_EVT_MODE_SHUTDOWN)
+			    || (p->match_value == p->next_match_value))
+				p->flags &= ~FLAG_REPROGRAM;
+	}
+
+	p->flags &= ~FLAG_IRQCONTEXT;
+
+	return IRQ_HANDLED;
+}
+
+static int sh_cmt_start(struct sh_cmt_priv *p, unsigned long flag)
+{
+	int ret = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&p->lock, flags);
+
+	if (!(p->flags & (FLAG_CLOCKEVENT | FLAG_CLOCKSOURCE)))
+		ret = sh_cmt_enable(p, &p->rate);
+
+	if (ret)
+		goto out;
+	p->flags |= flag;
+
+	/* setup timeout if no clockevent */
+	if ((flag == FLAG_CLOCKSOURCE) && (!(p->flags & FLAG_CLOCKEVENT)))
+		sh_cmt_set_next(p, p->max_match_value);
+ out:
+	spin_unlock_irqrestore(&p->lock, flags);
+
+	return ret;
+}
+
+static void sh_cmt_stop(struct sh_cmt_priv *p, unsigned long flag)
+{
+	unsigned long flags;
+	unsigned long f;
+
+	spin_lock_irqsave(&p->lock, flags);
+
+	f = p->flags & (FLAG_CLOCKEVENT | FLAG_CLOCKSOURCE);
+	p->flags &= ~flag;
+
+	if (f && !(p->flags & (FLAG_CLOCKEVENT | FLAG_CLOCKSOURCE)))
+		sh_cmt_disable(p);
+
+	/* adjust the timeout to maximum if only clocksource left */
+	if ((flag == FLAG_CLOCKEVENT) && (p->flags & FLAG_CLOCKSOURCE))
+		sh_cmt_set_next(p, p->max_match_value);
+
+	spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static struct sh_cmt_priv *ced_to_sh_cmt(struct clock_event_device *ced)
+{
+	return container_of(ced, struct sh_cmt_priv, ced);
+}
+
+static void sh_cmt_clock_event_start(struct sh_cmt_priv *p, int periodic)
+{
+	struct clock_event_device *ced = &p->ced;
+
+	sh_cmt_start(p, FLAG_CLOCKEVENT);
+
+	/* TODO: calculate good shift from rate and counter bit width */
+
+	ced->shift = 32;
+	ced->mult = div_sc(p->rate, NSEC_PER_SEC, ced->shift);
+	ced->max_delta_ns = clockevent_delta2ns(p->max_match_value, ced);
+	ced->min_delta_ns = clockevent_delta2ns(0x1f, ced);
+
+	if (periodic)
+		sh_cmt_set_next(p, (p->rate + HZ/2) / HZ);
+	else
+		sh_cmt_set_next(p, p->max_match_value);
+}
+
+static void sh_cmt_clock_event_mode(enum clock_event_mode mode,
+				    struct clock_event_device *ced)
+{
+	struct sh_cmt_priv *p = ced_to_sh_cmt(ced);
+
+	/* deal with old setting first */
+	switch (ced->mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+	case CLOCK_EVT_MODE_ONESHOT:
+		sh_cmt_stop(p, FLAG_CLOCKEVENT);
+		break;
+	default:
+		break;
+	}
+
+	switch (mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+		pr_info("sh_cmt: %s used for periodic clock events\n",
+			ced->name);
+		sh_cmt_clock_event_start(p, 1);
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+		pr_info("sh_cmt: %s used for oneshot clock events\n",
+			ced->name);
+		sh_cmt_clock_event_start(p, 0);
+		break;
+	case CLOCK_EVT_MODE_SHUTDOWN:
+	case CLOCK_EVT_MODE_UNUSED:
+		sh_cmt_stop(p, FLAG_CLOCKEVENT);
+		break;
+	default:
+		break;
+	}
+}
+
+static int sh_cmt_clock_event_next(unsigned long delta,
+				   struct clock_event_device *ced)
+{
+	struct sh_cmt_priv *p = ced_to_sh_cmt(ced);
+
+	BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT);
+	if (likely(p->flags & FLAG_IRQCONTEXT))
+		p->next_match_value = delta;
+	else
+		sh_cmt_set_next(p, delta);
+
+	return 0;
+}
+
+static void sh_cmt_register_clockevent(struct sh_cmt_priv *p,
+				       char *name, unsigned long rating)
+{
+	struct clock_event_device *ced = &p->ced;
+
+	memset(ced, 0, sizeof(*ced));
+
+	ced->name = name;
+	ced->features = CLOCK_EVT_FEAT_PERIODIC;
+	ced->features |= CLOCK_EVT_FEAT_ONESHOT;
+	ced->rating = rating;
+	ced->cpumask = cpumask_of(0);
+	ced->set_next_event = sh_cmt_clock_event_next;
+	ced->set_mode = sh_cmt_clock_event_mode;
+
+	pr_info("sh_cmt: %s used for clock events\n", ced->name);
+	ced->mult = 1; /* work around misplaced WARN_ON() in clockevents.c */
+	clockevents_register_device(ced);
+}
+
+int sh_cmt_register(struct sh_cmt_priv *p, char *name,
+		    unsigned long clockevent_rating,
+		    unsigned long clocksource_rating)
+{
+	if (p->width == (sizeof(p->max_match_value) * 8))
+		p->max_match_value = ~0;
+	else
+		p->max_match_value = (1 << p->width) - 1;
+
+	p->match_value = p->max_match_value;
+	spin_lock_init(&p->lock);
+
+	if (clockevent_rating)
+		sh_cmt_register_clockevent(p, name, clockevent_rating);
+
+	return 0;
+}
+
+static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
+{
+	struct sh_cmt_config *cfg = pdev->dev.platform_data;
+	struct resource *res;
+	int irq, ret;
+	ret = -ENXIO;
+
+	memset(p, 0, sizeof(*p));
+	p->pdev = pdev;
+
+	if (!cfg) {
+		dev_err(&p->pdev->dev, "missing platform data\n");
+		goto err0;
+	}
+
+	platform_set_drvdata(pdev, p);
+
+	res = platform_get_resource(p->pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&p->pdev->dev, "failed to get I/O memory\n");
+		goto err0;
+	}
+
+	irq = platform_get_irq(p->pdev, 0);
+	if (irq < 0) {
+		dev_err(&p->pdev->dev, "failed to get irq\n");
+		goto err0;
+	}
+
+	/* map memory, let mapbase point to our channel */
+	p->mapbase = ioremap_nocache(res->start, resource_size(res));
+	if (p->mapbase == NULL) {
+		pr_err("sh_cmt: failed to remap I/O memory\n");
+		goto err0;
+	}
+
+	/* request irq using setup_irq() (too early for request_irq()) */
+	p->irqaction.name = cfg->name;
+	p->irqaction.handler = sh_cmt_interrupt;
+	p->irqaction.dev_id = p;
+	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
+	p->irqaction.mask = CPU_MASK_NONE;
+	ret = setup_irq(irq, &p->irqaction);
+	if (ret) {
+		pr_err("sh_cmt: failed to request irq %d\n", irq);
+		goto err1;
+	}
+
+	/* get hold of clock */
+	p->clk = clk_get(&p->pdev->dev, cfg->clk);
+	if (IS_ERR(p->clk)) {
+		pr_err("sh_cmt: cannot get clock \"%s\"\n", cfg->clk);
+		ret = PTR_ERR(p->clk);
+		goto err2;
+	}
+
+	if (resource_size(res) == 6) {
+		p->width = 16;
+		p->overflow_bit = 0x80;
+		p->clear_bits = ~0xc0;
+	} else {
+		p->width = 32;
+		p->overflow_bit = 0x8000;
+		p->clear_bits = ~0xc000;
+	}
+
+	return sh_cmt_register(p, cfg->name,
+			       cfg->clockevent_rating,
+			       cfg->clocksource_rating);
+ err2:
+	free_irq(irq, p);
+ err1:
+	iounmap(p->mapbase);
+ err0:
+	return ret;
+}
+
+static int __devinit sh_cmt_probe(struct platform_device *pdev)
+{
+	struct sh_cmt_priv *p = platform_get_drvdata(pdev);
+	int ret;
+
+	p = kmalloc(sizeof(*p), GFP_KERNEL);
+	if (p == NULL) {
+		dev_err(&pdev->dev, "failed to allocate driver data\n");
+		return -ENOMEM;
+	}
+
+	ret = sh_cmt_setup(p, pdev);
+	if (ret) {
+		kfree(p);
+
+		platform_set_drvdata(pdev, NULL);
+	}
+	return ret;
+}
+
+static int __devexit sh_cmt_remove(struct platform_device *pdev)
+{
+	return -EBUSY; /* cannot unregister clockevent and clocksource */
+}
+
+static struct platform_driver sh_cmt_device_driver = {
+	.probe		= sh_cmt_probe,
+	.remove		= __devexit_p(sh_cmt_remove),
+	.driver		= {
+		.name	= "sh_cmt",
+	}
+};
+
+static int __init sh_cmt_init(void)
+{
+	return platform_driver_register(&sh_cmt_device_driver);
+}
+
+static void __exit sh_cmt_exit(void)
+{
+	platform_driver_unregister(&sh_cmt_device_driver);
+}
+
+module_init(sh_cmt_init);
+module_exit(sh_cmt_exit);
+
+MODULE_AUTHOR("Magnus Damm");
+MODULE_DESCRIPTION("SuperH CMT Timer Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/sh_cmt.h b/include/linux/sh_cmt.h
new file mode 100644
index 000000000000..68cacde5954f
--- /dev/null
+++ b/include/linux/sh_cmt.h
@@ -0,0 +1,13 @@
+#ifndef __SH_CMT_H__
+#define __SH_CMT_H__
+
+struct sh_cmt_config {
+	char *name;
+	unsigned long channel_offset;
+	int timer_bit;
+	char *clk;
+	unsigned long clockevent_rating;
+	unsigned long clocksource_rating;
+};
+
+#endif /* __SH_CMT_H__ */
-- 
cgit v1.2.3


From d7ab5c46ae2743079a40bb4060e510418c0842b4 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Wed, 28 Jan 2009 21:53:18 +0900
Subject: intel-iommu: make dma mapping functions static

The dma ops unification enables X86 and IA64 to share intel_dma_ops so
we can make dma mapping functions static. This also remove unused
intel_map_single().

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 drivers/pci/intel-iommu.c   | 29 +++++++++++------------------
 include/linux/intel-iommu.h |  9 ---------
 2 files changed, 11 insertions(+), 27 deletions(-)

(limited to 'include')

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 59de56304aa6..628f8b72e530 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -2283,13 +2283,6 @@ static dma_addr_t intel_map_page(struct device *dev, struct page *page,
 				  dir, to_pci_dev(dev)->dma_mask);
 }
 
-dma_addr_t intel_map_single(struct device *hwdev, phys_addr_t paddr,
-			    size_t size, int dir)
-{
-	return __intel_map_single(hwdev, paddr, size, dir,
-				  to_pci_dev(hwdev)->dma_mask);
-}
-
 static void flush_unmaps(void)
 {
 	int i, j;
@@ -2397,14 +2390,14 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr,
 	}
 }
 
-void intel_unmap_single(struct device *dev, dma_addr_t dev_addr, size_t size,
-			int dir)
+static void intel_unmap_single(struct device *dev, dma_addr_t dev_addr, size_t size,
+			       int dir)
 {
 	intel_unmap_page(dev, dev_addr, size, dir, NULL);
 }
 
-void *intel_alloc_coherent(struct device *hwdev, size_t size,
-			   dma_addr_t *dma_handle, gfp_t flags)
+static void *intel_alloc_coherent(struct device *hwdev, size_t size,
+				  dma_addr_t *dma_handle, gfp_t flags)
 {
 	void *vaddr;
 	int order;
@@ -2427,8 +2420,8 @@ void *intel_alloc_coherent(struct device *hwdev, size_t size,
 	return NULL;
 }
 
-void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
-			 dma_addr_t dma_handle)
+static void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
+				dma_addr_t dma_handle)
 {
 	int order;
 
@@ -2441,9 +2434,9 @@ void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
 
 #define SG_ENT_VIRT_ADDRESS(sg)	(sg_virt((sg)))
 
-void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
-		    int nelems, enum dma_data_direction dir,
-		    struct dma_attrs *attrs)
+static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
+			   int nelems, enum dma_data_direction dir,
+			   struct dma_attrs *attrs)
 {
 	int i;
 	struct pci_dev *pdev = to_pci_dev(hwdev);
@@ -2500,8 +2493,8 @@ static int intel_nontranslate_map_sg(struct device *hddev,
 	return nelems;
 }
 
-int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
-		 enum dma_data_direction dir, struct dma_attrs *attrs)
+static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
+			enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	void *addr;
 	int i;
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index a254db1decd0..43412aeddb53 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -330,13 +330,4 @@ extern int qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,
 
 extern void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu);
 
-extern void *intel_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
-extern void intel_free_coherent(struct device *, size_t, void *, dma_addr_t);
-extern dma_addr_t intel_map_single(struct device *, phys_addr_t, size_t, int);
-extern void intel_unmap_single(struct device *, dma_addr_t, size_t, int);
-extern int intel_map_sg(struct device *, struct scatterlist *, int,
-			enum dma_data_direction, struct dma_attrs *);
-extern void intel_unmap_sg(struct device *, struct scatterlist *, int,
-			   enum dma_data_direction, struct dma_attrs *);
-
 #endif
-- 
cgit v1.2.3


From 9ee677c2276bfcbcf68042ec2718a504af0c5fd7 Mon Sep 17 00:00:00 2001
From: David Kilroy <kilroyd@googlemail.com>
Date: Tue, 23 Dec 2008 14:03:38 +0000
Subject: wireless: Add channel/frequency conversions to ieee80211.h

Added mappings for FHSS, DSSS and OFDM channels - with macros to point
HR DSSS and ERP to the DSSS mappings. Currently just static inline
functions.

Use the new functions in the older fullmac drivers. This eliminates a
number of const static buffers and removes a couple of range checks that
are now redundant.

Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Richard Farina <sidhayn@gmail.com>
Acked-by: Jeroen Vreeken <pe1rxq@amsat.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/airo.c            |  25 ++-----
 drivers/net/wireless/atmel.c           |  20 +++---
 drivers/net/wireless/orinoco/orinoco.c |  33 ++++------
 drivers/net/wireless/rndis_wlan.c      |  13 ++--
 drivers/net/wireless/wl3501_cs.c       |   9 +--
 drivers/net/wireless/zd1201.c          |   7 +-
 include/linux/ieee80211.h              | 116 +++++++++++++++++++++++++++++++++
 7 files changed, 155 insertions(+), 68 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index fc4322ca669f..2ff588bb0a7c 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -1070,10 +1070,6 @@ static WifiCtlHdr wifictlhdr8023 = {
 	}
 };
 
-// Frequency list (map channels to frequencies)
-static const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
-				2447, 2452, 2457, 2462, 2467, 2472, 2484 };
-
 // A few details needed for WEP (Wireless Equivalent Privacy)
 #define MAX_KEY_SIZE 13			// 128 (?) bits
 #define MIN_KEY_SIZE  5			// 40 bits RC4 - WEP
@@ -5725,16 +5721,12 @@ static int airo_set_freq(struct net_device *dev,
 	int rc = -EINPROGRESS;		/* Call commit handler */
 
 	/* If setting by frequency, convert to a channel */
-	if((fwrq->e == 1) &&
-	   (fwrq->m >= (int) 2.412e8) &&
-	   (fwrq->m <= (int) 2.487e8)) {
+	if(fwrq->e == 1) {
 		int f = fwrq->m / 100000;
-		int c = 0;
-		while((c < 14) && (f != frequency_list[c]))
-			c++;
+
 		/* Hack to fall through... */
 		fwrq->e = 0;
-		fwrq->m = c + 1;
+		fwrq->m = ieee80211_freq_to_dsss_chan(f);
 	}
 	/* Setting by channel number */
 	if((fwrq->m > 1000) || (fwrq->e > 0))
@@ -5778,7 +5770,7 @@ static int airo_get_freq(struct net_device *dev,
 
 	ch = le16_to_cpu(status_rid.channel);
 	if((ch > 0) && (ch < 15)) {
-		fwrq->m = frequency_list[ch - 1] * 100000;
+		fwrq->m = ieee80211_dsss_chan_to_freq(ch) * 100000;
 		fwrq->e = 1;
 	} else {
 		fwrq->m = ch;
@@ -6795,8 +6787,8 @@ static int airo_get_range(struct net_device *dev,
 	k = 0;
 	for(i = 0; i < 14; i++) {
 		range->freq[k].i = i + 1; /* List index */
-		range->freq[k].m = frequency_list[i] * 100000;
-		range->freq[k++].e = 1;	/* Values in table in MHz -> * 10^5 * 10 */
+		range->freq[k].m = ieee80211_dsss_chan_to_freq(i + 1) * 100000;
+		range->freq[k++].e = 1;	/* Values in MHz -> * 10^5 * 10 */
 	}
 	range->num_frequency = k;
 
@@ -7189,10 +7181,7 @@ static inline char *airo_translate_scan(struct net_device *dev,
 	/* Add frequency */
 	iwe.cmd = SIOCGIWFREQ;
 	iwe.u.freq.m = le16_to_cpu(bss->dsChannel);
-	/* iwe.u.freq.m containt the channel (starting 1), our 
-	 * frequency_list array start at index 0...
-	 */
-	iwe.u.freq.m = frequency_list[iwe.u.freq.m - 1] * 100000;
+	iwe.u.freq.m = ieee80211_dsss_chan_to_freq(iwe.u.freq.m) * 100000;
 	iwe.u.freq.e = 1;
 	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 					  &iwe, IW_EV_FREQ_LEN);
diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c
index 4223672c4432..91930a2c3c6b 100644
--- a/drivers/net/wireless/atmel.c
+++ b/drivers/net/wireless/atmel.c
@@ -2204,9 +2204,6 @@ static int atmel_get_frag(struct net_device *dev,
 	return 0;
 }
 
-static const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
-				2447, 2452, 2457, 2462, 2467, 2472, 2484 };
-
 static int atmel_set_freq(struct net_device *dev,
 			  struct iw_request_info *info,
 			  struct iw_freq *fwrq,
@@ -2216,16 +2213,12 @@ static int atmel_set_freq(struct net_device *dev,
 	int rc = -EINPROGRESS;		/* Call commit handler */
 
 	/* If setting by frequency, convert to a channel */
-	if ((fwrq->e == 1) &&
-	    (fwrq->m >= (int) 241200000) &&
-	    (fwrq->m <= (int) 248700000)) {
+	if (fwrq->e == 1) {
 		int f = fwrq->m / 100000;
-		int c = 0;
-		while ((c < 14) && (f != frequency_list[c]))
-			c++;
+
 		/* Hack to fall through... */
 		fwrq->e = 0;
-		fwrq->m = c + 1;
+		fwrq->m = ieee80211_freq_to_dsss_chan(f);
 	}
 	/* Setting by channel number */
 	if ((fwrq->m > 1000) || (fwrq->e > 0))
@@ -2384,8 +2377,11 @@ static int atmel_get_range(struct net_device *dev,
 	if (range->num_channels != 0) {
 		for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) {
 			range->freq[k].i = i; /* List index */
-			range->freq[k].m = frequency_list[i - 1] * 100000;
-			range->freq[k++].e = 1;	/* Values in table in MHz -> * 10^5 * 10 */
+
+			/* Values in MHz -> * 10^5 * 10 */
+			range->freq[k].m = (ieee80211_dsss_chan_to_freq(i) *
+					    100000);
+			range->freq[k++].e = 1;
 		}
 		range->num_frequency = k;
 	}
diff --git a/drivers/net/wireless/orinoco/orinoco.c b/drivers/net/wireless/orinoco/orinoco.c
index 45a04faa7818..beb4d1f8c184 100644
--- a/drivers/net/wireless/orinoco/orinoco.c
+++ b/drivers/net/wireless/orinoco/orinoco.c
@@ -178,12 +178,7 @@ static const struct ethtool_ops orinoco_ethtool_ops;
 /* Data tables                                                      */
 /********************************************************************/
 
-/* The frequency of each channel in MHz */
-static const long channel_frequency[] = {
-	2412, 2417, 2422, 2427, 2432, 2437, 2442,
-	2447, 2452, 2457, 2462, 2467, 2472, 2484
-};
-#define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
+#define NUM_CHANNELS 14
 
 /* This tables gives the actual meanings of the bitrate IDs returned
  * by the firmware. */
@@ -3742,13 +3737,13 @@ static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
 	return err;       
 }
 
-static long orinoco_hw_get_freq(struct orinoco_private *priv)
+static int orinoco_hw_get_freq(struct orinoco_private *priv)
 {
 	
 	hermes_t *hw = &priv->hw;
 	int err = 0;
 	u16 channel;
-	long freq = 0;
+	int freq = 0;
 	unsigned long flags;
 
 	if (orinoco_lock(priv, &flags) != 0)
@@ -3771,7 +3766,7 @@ static long orinoco_hw_get_freq(struct orinoco_private *priv)
 		goto out;
 
 	}
-	freq = channel_frequency[channel-1] * 100000;
+	freq = ieee80211_dsss_chan_to_freq(channel);
 
  out:
 	orinoco_unlock(priv, &flags);
@@ -3998,7 +3993,8 @@ static int orinoco_ioctl_getiwrange(struct net_device *dev,
 	for (i = 0; i < NUM_CHANNELS; i++) {
 		if (priv->channel_mask & (1 << i)) {
 			range->freq[k].i = i + 1;
-			range->freq[k].m = channel_frequency[i] * 100000;
+			range->freq[k].m = (ieee80211_dsss_chan_to_freq(i + 1) *
+					    100000);
 			range->freq[k].e = 1;
 			k++;
 		}
@@ -4346,16 +4342,15 @@ static int orinoco_ioctl_setfreq(struct net_device *dev,
 		/* Setting by channel number */
 		chan = frq->m;
 	} else {
-		/* Setting by frequency - search the table */
-		int mult = 1;
+		/* Setting by frequency */
+		int denom = 1;
 		int i;
 
+		/* Calculate denominator to rescale to MHz */
 		for (i = 0; i < (6 - frq->e); i++)
-			mult *= 10;
+			denom *= 10;
 
-		for (i = 0; i < NUM_CHANNELS; i++)
-			if (frq->m == (channel_frequency[i] * mult))
-				chan = i+1;
+		chan = ieee80211_freq_to_dsss_chan(frq->m / denom);
 	}
 
 	if ( (chan < 1) || (chan > NUM_CHANNELS) ||
@@ -4392,7 +4387,7 @@ static int orinoco_ioctl_getfreq(struct net_device *dev,
 		return tmp;
 	}
 
-	frq->m = tmp;
+	frq->m = tmp * 100000;
 	frq->e = 1;
 
 	return 0;
@@ -5609,7 +5604,7 @@ static inline char *orinoco_translate_scan(struct net_device *dev,
 		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 						  &iwe, IW_EV_FREQ_LEN);
 
-		iwe.u.freq.m = channel_frequency[channel-1] * 100000;
+		iwe.u.freq.m = ieee80211_dsss_chan_to_freq(channel) * 100000;
 		iwe.u.freq.e = 1;
 		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 						  &iwe, IW_EV_FREQ_LEN);
@@ -5760,7 +5755,7 @@ static inline char *orinoco_translate_ext_scan(struct net_device *dev,
 		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 						  &iwe, IW_EV_FREQ_LEN);
 
-		iwe.u.freq.m = channel_frequency[channel-1] * 100000;
+		iwe.u.freq.m = ieee80211_dsss_chan_to_freq(channel) * 100000;
 		iwe.u.freq.e = 1;
 		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
 						  &iwe, IW_EV_FREQ_LEN);
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index ed93ac41297f..105f214e21f4 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -369,9 +369,6 @@ struct rndis_wext_private {
 };
 
 
-static const int freq_chan[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
-				2447, 2452, 2457, 2462, 2467, 2472, 2484 };
-
 static const int rates_80211g[8] = { 6, 9, 12, 18, 24, 36, 48, 54 };
 
 static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
@@ -640,8 +637,8 @@ static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
 static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
 {
 	if (freq->m < 1000 && freq->e == 0) {
-		if (freq->m >= 1 && freq->m <= ARRAY_SIZE(freq_chan))
-			*dsconfig = freq_chan[freq->m - 1] * 1000;
+		if (freq->m >= 1 && freq->m <= 14)
+			*dsconfig = ieee80211_dsss_chan_to_freq(freq->m) * 1000;
 		else
 			return -1;
 	} else {
@@ -1178,11 +1175,11 @@ static int rndis_iw_get_range(struct net_device *dev,
 		range->throughput = 11 * 1000 * 1000 / 2;
 	}
 
-	range->num_channels = ARRAY_SIZE(freq_chan);
+	range->num_channels = 14;
 
-	for (i = 0; i < ARRAY_SIZE(freq_chan) && i < IW_MAX_FREQUENCIES; i++) {
+	for (i = 0; (i < 14) && (i < IW_MAX_FREQUENCIES); i++) {
 		range->freq[i].i = i + 1;
-		range->freq[i].m = freq_chan[i] * 100000;
+		range->freq[i].m = ieee80211_dsss_chan_to_freq(i + 1) * 100000;
 		range->freq[i].e = 1;
 	}
 	range->num_frequency = i;
diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index c99a1b6b948f..c8d5c34e8ddf 100644
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -44,6 +44,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/wireless.h>
+#include <linux/ieee80211.h>
 
 #include <net/iw_handler.h>
 
@@ -111,12 +112,6 @@ static void wl3501_release(struct pcmcia_device *link);
  */
 static dev_info_t wl3501_dev_info = "wl3501_cs";
 
-static int wl3501_chan2freq[] = {
-	[0]  = 2412, [1]  = 2417, [2]  = 2422, [3]  = 2427, [4] = 2432,
-	[5]  = 2437, [6]  = 2442, [7]  = 2447, [8]  = 2452, [9] = 2457,
-	[10] = 2462, [11] = 2467, [12] = 2472, [13] = 2477,
-};
-
 static const struct {
 	int reg_domain;
 	int min, max, deflt;
@@ -1510,7 +1505,7 @@ static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
 {
 	struct wl3501_card *this = netdev_priv(dev);
 
-	wrqu->freq.m = wl3501_chan2freq[this->chan - 1] * 100000;
+	wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000;
 	wrqu->freq.e = 1;
 	return 0;
 }
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index b45c27d42fd8..6226ac2357f8 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -919,10 +919,9 @@ static int zd1201_set_freq(struct net_device *dev,
 	if (freq->e == 0)
 		channel = freq->m;
 	else {
-		if (freq->m >= 2482)
-			channel = 14;
-		if (freq->m >= 2407)
-			channel = (freq->m-2407)/5;
+		channel = ieee80211_freq_to_dsss_chan(freq->m);
+		if (channel < 0)
+			channel = 0;
 	}
 
 	err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index c4e6ca1a6306..cade2556af0e 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1185,4 +1185,120 @@ static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
 		return hdr->addr1;
 }
 
+/**
+ * ieee80211_fhss_chan_to_freq - get channel frequency
+ * @channel: the FHSS channel
+ *
+ * Convert IEEE802.11 FHSS channel to frequency (MHz)
+ * Ref IEEE 802.11-2007 section 14.6
+ */
+static inline int ieee80211_fhss_chan_to_freq(int channel)
+{
+	if ((channel > 1) && (channel < 96))
+		return channel + 2400;
+	else
+		return -1;
+}
+
+/**
+ * ieee80211_freq_to_fhss_chan - get channel
+ * @freq: the channels frequency
+ *
+ * Convert frequency (MHz) to IEEE802.11 FHSS channel
+ * Ref IEEE 802.11-2007 section 14.6
+ */
+static inline int ieee80211_freq_to_fhss_chan(int freq)
+{
+	if ((freq > 2401) && (freq < 2496))
+		return freq - 2400;
+	else
+		return -1;
+}
+
+/**
+ * ieee80211_dsss_chan_to_freq - get channel center frequency
+ * @channel: the DSSS channel
+ *
+ * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
+ * Ref IEEE 802.11-2007 section 15.6
+ */
+static inline int ieee80211_dsss_chan_to_freq(int channel)
+{
+	if ((channel > 0) && (channel < 14))
+		return 2407 + (channel * 5);
+	else if (channel == 14)
+		return 2484;
+	else
+		return -1;
+}
+
+/**
+ * ieee80211_freq_to_dsss_chan - get channel
+ * @freq: the frequency
+ *
+ * Convert frequency (MHz) to IEEE802.11 DSSS channel
+ * Ref IEEE 802.11-2007 section 15.6
+ *
+ * This routine selects the channel with the closest center frequency.
+ */
+static inline int ieee80211_freq_to_dsss_chan(int freq)
+{
+	if ((freq >= 2410) && (freq < 2475))
+		return (freq - 2405) / 5;
+	else if ((freq >= 2482) && (freq < 2487))
+		return 14;
+	else
+		return -1;
+}
+
+/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
+ * Ref IEEE 802.11-2007 section 18.4.6.2
+ *
+ * The channels and frequencies are the same as those defined for DSSS
+ */
+#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
+#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
+
+/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
+ * Ref IEEE 802.11-2007 section 19.4.2
+ */
+#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
+#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
+
+/**
+ * ieee80211_ofdm_chan_to_freq - get channel center frequency
+ * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
+ * @channel: the OFDM channel
+ *
+ * Convert IEEE802.11 OFDM channel to center frequency (MHz)
+ * Ref IEEE 802.11-2007 section 17.3.8.3.2
+ */
+static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
+{
+	if ((channel > 0) && (channel <= 200) &&
+	    (s_freq >= 4000))
+		return s_freq + (channel * 5);
+	else
+		return -1;
+}
+
+/**
+ * ieee80211_freq_to_ofdm_channel - get channel
+ * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
+ * @freq: the frequency
+ *
+ * Convert frequency (MHz) to IEEE802.11 OFDM channel
+ * Ref IEEE 802.11-2007 section 17.3.8.3.2
+ *
+ * This routine selects the channel with the closest center frequency.
+ */
+static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
+{
+	if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
+	    (s_freq >= 4000))
+		return (freq + 2 - s_freq) / 5;
+	else
+		return -1;
+}
+
 #endif /* LINUX_IEEE80211_H */
-- 
cgit v1.2.3


From 10c806b32db1c9f010945e92043ef2a3f6fffc3f Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Tue, 23 Dec 2008 15:58:36 -0800
Subject: mac80211: add HT conf helpers

In HT capable drivers you often need to check if you
are currently using HT20 or HT40. This adds a few small
helpers to let drivers figure that out.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 559422fc0943..1e8db8ae6159 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1962,4 +1962,34 @@ rate_lowest_index(struct ieee80211_supported_band *sband,
 int ieee80211_rate_control_register(struct rate_control_ops *ops);
 void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
 
+static inline bool
+conf_is_ht20(struct ieee80211_conf *conf)
+{
+	return conf->ht.channel_type == NL80211_CHAN_HT20;
+}
+
+static inline bool
+conf_is_ht40_minus(struct ieee80211_conf *conf)
+{
+	return conf->ht.channel_type == NL80211_CHAN_HT40MINUS;
+}
+
+static inline bool
+conf_is_ht40_plus(struct ieee80211_conf *conf)
+{
+	return conf->ht.channel_type == NL80211_CHAN_HT40PLUS;
+}
+
+static inline bool
+conf_is_ht40(struct ieee80211_conf *conf)
+{
+	return conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf);
+}
+
+static inline bool
+conf_is_ht(struct ieee80211_conf *conf)
+{
+	return conf->ht.channel_type != NL80211_CHAN_NO_HT;
+}
+
 #endif /* MAC80211_H */
-- 
cgit v1.2.3


From 285256a59d790c6a9afe8ec82804a369d956ac06 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Tue, 23 Dec 2008 15:58:45 -0800
Subject: mac80211: no need for ht.enabled

We can simply use conf_is_ht() check where needed.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h |  1 -
 net/mac80211/ht.c      |  3 +--
 net/mac80211/main.c    | 10 ----------
 net/mac80211/mlme.c    |  1 -
 4 files changed, 1 insertion(+), 14 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 1e8db8ae6159..9d67fdf1c26a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -508,7 +508,6 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
 #define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME())
 
 struct ieee80211_ht_conf {
-	bool enabled;
 	enum nl80211_channel_type channel_type;
 };
 
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index c5c0c5271096..f6547de5ac6b 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -130,11 +130,10 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	ht_changed = local->hw.conf.ht.enabled != enable_ht ||
+	ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
 		     channel_type != local->hw.conf.ht.channel_type;
 
 	local->oper_channel_type = channel_type;
-	local->hw.conf.ht.enabled = enable_ht;
 
 	if (ht_changed)
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 24b14363d6e7..a6cb480dda0d 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -211,16 +211,6 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	    channel_type != local->hw.conf.ht.channel_type) {
 		local->hw.conf.channel = chan;
 		local->hw.conf.ht.channel_type = channel_type;
-		switch (channel_type) {
-		case NL80211_CHAN_NO_HT:
-			local->hw.conf.ht.enabled = false;
-			break;
-		case NL80211_CHAN_HT20:
-		case NL80211_CHAN_HT40MINUS:
-		case NL80211_CHAN_HT40PLUS:
-			local->hw.conf.ht.enabled = true;
-			break;
-		}
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
 	}
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 599a42172a16..12976026cc45 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -901,7 +901,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_unlock();
 
-	local->hw.conf.ht.enabled = false;
 	local->oper_channel_type = NL80211_CHAN_NO_HT;
 	config_changed |= IEEE80211_CONF_CHANGE_HT;
 
-- 
cgit v1.2.3


From e3c92df08cbf6a0cb60a9c7ce377378383967e07 Mon Sep 17 00:00:00 2001
From: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Date: Wed, 24 Dec 2008 13:53:11 +0530
Subject: mac80211: Fix tx power setting

power_level in ieee80211_conf is being used for more than one
purpose. It being used as user configured power limit and the
final power limit given to the driver. By doing so, except very
first time, the tx power limit is taken from min(chan->max_power,
local->hw.conf.power_level) which is not what we want. This patch
defines a new memeber in ieee80211_conf which is meant only for
user configured power limit.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 2 ++
 net/mac80211/main.c    | 4 ++--
 net/mac80211/wext.c    | 5 ++---
 3 files changed, 6 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9d67fdf1c26a..ffcbd12775a4 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -546,6 +546,7 @@ enum ieee80211_conf_changed {
  * @listen_interval: listen interval in units of beacon interval
  * @flags: configuration flags defined above
  * @power_level: requested transmit power (in dBm)
+ * @user_power_level: User configured transmit power (in dBm)
  * @channel: the channel to tune to
  * @ht: the HT configuration for the device
  * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame
@@ -559,6 +560,7 @@ struct ieee80211_conf {
 	int beacon_int;
 	u32 flags;
 	int power_level;
+	int user_power_level;
 
 	u16 listen_interval;
 	bool radio_enabled;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index a6cb480dda0d..dca4b7da6cad 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -214,10 +214,10 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
 	}
 
-	if (!local->hw.conf.power_level)
+	if (!local->hw.conf.user_power_level)
 		power = chan->max_power;
 	else
-		power = min(chan->max_power, local->hw.conf.power_level);
+		power = min(chan->max_power, local->hw.conf.user_power_level);
 	if (local->hw.conf.power_level != power) {
 		changed |= IEEE80211_CONF_CHANGE_POWER;
 		local->hw.conf.power_level = power;
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 48fc6b9a62a4..654041b93736 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -549,10 +549,9 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
 	else /* Automatic power level setting */
 		new_power_level = chan->max_power;
 
-	if (local->hw.conf.power_level != new_power_level) {
-		local->hw.conf.power_level = new_power_level;
+	local->hw.conf.user_power_level = new_power_level;
+	if (local->hw.conf.power_level != new_power_level)
 		reconf_flags |= IEEE80211_CONF_CHANGE_POWER;
-	}
 
 	if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
 		local->hw.conf.radio_enabled = !(data->txpower.disabled);
-- 
cgit v1.2.3


From 6b1c7c67603efdf0b39f6056989b0f8194cdc1f3 Mon Sep 17 00:00:00 2001
From: Michael Buesch <mb@bu3sch.de>
Date: Thu, 25 Dec 2008 00:39:28 +0100
Subject: b43/ssb: Add SPROM8 extraction and LP-PHY detection

This adds detection code for the LP-PHY and SPROM
extraction code for version 8, which is needed by the LP-PHY and
newer N-PHY.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/b43/main.c | 12 +++++++
 drivers/ssb/b43_pci_bridge.c    |  1 +
 drivers/ssb/pci.c               | 74 ++++++++++++++++++++++++++++++++++-------
 include/linux/ssb/ssb_regs.h    | 36 ++++++++++++++++++++
 4 files changed, 111 insertions(+), 12 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 26e733a5a56e..c627bac87a40 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -97,6 +97,7 @@ static const struct ssb_device_id b43_ssb_tbl[] = {
 	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
 	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
 	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
+	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15),
 	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16),
 	SSB_DEVTABLE_END
 };
@@ -3755,6 +3756,12 @@ static int b43_phy_versioning(struct b43_wldev *dev)
 		if (phy_rev > 4)
 			unsupported = 1;
 		break;
+#endif
+#ifdef CONFIG_B43_PHY_LP
+	case B43_PHYTYPE_LP:
+		if (phy_rev > 1)
+			unsupported = 1;
+		break;
 #endif
 	default:
 		unsupported = 1;
@@ -3808,6 +3815,10 @@ static int b43_phy_versioning(struct b43_wldev *dev)
 		if (radio_ver != 0x2055 && radio_ver != 0x2056)
 			unsupported = 1;
 		break;
+	case B43_PHYTYPE_LP:
+		if (radio_ver != 0x2062)
+			unsupported = 1;
+		break;
 	default:
 		B43_WARN_ON(1);
 	}
@@ -4402,6 +4413,7 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
 			break;
 		case B43_PHYTYPE_G:
 		case B43_PHYTYPE_N:
+		case B43_PHYTYPE_LP:
 			have_2ghz_phy = 1;
 			break;
 		default:
diff --git a/drivers/ssb/b43_pci_bridge.c b/drivers/ssb/b43_pci_bridge.c
index 6433a7ed39f8..27a677584a4c 100644
--- a/drivers/ssb/b43_pci_bridge.c
+++ b/drivers/ssb/b43_pci_bridge.c
@@ -21,6 +21,7 @@ static const struct pci_device_id b43_pci_bridge_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4307) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4311) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4312) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4315) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4318) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4319) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4320) },
diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index d5cde051806b..c958ac16423c 100644
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -467,6 +467,51 @@ static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in)
 	/* TODO - get remaining rev 4 stuff needed */
 }
 
+static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in)
+{
+	int i;
+	u16 v;
+
+	/* extract the MAC address */
+	for (i = 0; i < 3; i++) {
+		v = in[SPOFF(SSB_SPROM1_IL0MAC) + i];
+		*(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
+	}
+	SPEX(country_code, SSB_SPROM8_CCODE, 0xFFFF, 0);
+	SPEX(boardflags_lo, SSB_SPROM8_BFLLO, 0xFFFF, 0);
+	SPEX(boardflags_hi, SSB_SPROM8_BFLHI, 0xFFFF, 0);
+	SPEX(ant_available_a, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_A,
+	     SSB_SPROM8_ANTAVAIL_A_SHIFT);
+	SPEX(ant_available_bg, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_BG,
+	     SSB_SPROM8_ANTAVAIL_BG_SHIFT);
+	SPEX(maxpwr_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_MAXP_BG_MASK, 0);
+	SPEX(itssi_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_ITSSI_BG,
+	     SSB_SPROM8_ITSSI_BG_SHIFT);
+	SPEX(maxpwr_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_MAXP_A_MASK, 0);
+	SPEX(itssi_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_ITSSI_A,
+	     SSB_SPROM8_ITSSI_A_SHIFT);
+	SPEX(gpio0, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P0, 0);
+	SPEX(gpio1, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P1,
+	     SSB_SPROM8_GPIOA_P1_SHIFT);
+	SPEX(gpio2, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P2, 0);
+	SPEX(gpio3, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P3,
+	     SSB_SPROM8_GPIOB_P3_SHIFT);
+
+	/* Extract the antenna gain values. */
+	SPEX(antenna_gain.ghz24.a0, SSB_SPROM8_AGAIN01,
+	     SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT);
+	SPEX(antenna_gain.ghz24.a1, SSB_SPROM8_AGAIN01,
+	     SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT);
+	SPEX(antenna_gain.ghz24.a2, SSB_SPROM8_AGAIN23,
+	     SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT);
+	SPEX(antenna_gain.ghz24.a3, SSB_SPROM8_AGAIN23,
+	     SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT);
+	memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24,
+	       sizeof(out->antenna_gain.ghz5));
+
+	/* TODO - get remaining rev 8 stuff needed */
+}
+
 static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
 			 const u16 *in, u16 size)
 {
@@ -487,15 +532,25 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
 		out->revision = 4;
 		sprom_extract_r45(out, in);
 	} else {
-		if (out->revision == 0)
-			goto unsupported;
-		if (out->revision >= 1 && out->revision <= 3) {
+		switch (out->revision) {
+		case 1:
+		case 2:
+		case 3:
 			sprom_extract_r123(out, in);
-		}
-		if (out->revision == 4 || out->revision == 5)
+			break;
+		case 4:
+		case 5:
 			sprom_extract_r45(out, in);
-		if (out->revision > 5)
-			goto unsupported;
+			break;
+		case 8:
+			sprom_extract_r8(out, in);
+			break;
+		default:
+			ssb_printk(KERN_WARNING PFX "Unsupported SPROM"
+				   "  revision %d detected. Will extract"
+				   " v1\n", out->revision);
+			sprom_extract_r123(out, in);
+		}
 	}
 
 	if (out->boardflags_lo == 0xFFFF)
@@ -504,11 +559,6 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
 		out->boardflags_hi = 0;  /* per specs */
 
 	return 0;
-unsupported:
-	ssb_printk(KERN_WARNING PFX "Unsupported SPROM revision %d "
-		   "detected. Will extract v1\n", out->revision);
-	sprom_extract_r123(out, in);
-	return 0;
 }
 
 static int ssb_pci_sprom_get(struct ssb_bus *bus,
diff --git a/include/linux/ssb/ssb_regs.h b/include/linux/ssb/ssb_regs.h
index 99a0f991e850..a01b982b5783 100644
--- a/include/linux/ssb/ssb_regs.h
+++ b/include/linux/ssb/ssb_regs.h
@@ -326,6 +326,42 @@
 #define  SSB_SPROM5_GPIOB_P3		0xFF00	/* Pin 3 */
 #define  SSB_SPROM5_GPIOB_P3_SHIFT	8
 
+/* SPROM Revision 8 */
+#define SSB_SPROM8_BFLLO		0x1084	/* Boardflags (low 16 bits) */
+#define SSB_SPROM8_BFLHI		0x1086	/* Boardflags Hi */
+#define SSB_SPROM8_IL0MAC		0x108C	/* 6 byte MAC address */
+#define SSB_SPROM8_CCODE		0x1092	/* 2 byte country code */
+#define SSB_SPROM8_ANTAVAIL		0x109C  /* Antenna available bitfields*/
+#define SSB_SPROM8_ANTAVAIL_A		0xFF00	/* A-PHY bitfield */
+#define SSB_SPROM8_ANTAVAIL_A_SHIFT	8
+#define SSB_SPROM8_ANTAVAIL_BG		0x00FF	/* B-PHY and G-PHY bitfield */
+#define SSB_SPROM8_ANTAVAIL_BG_SHIFT	0
+#define SSB_SPROM8_AGAIN01		0x109E	/* Antenna Gain (in dBm Q5.2) */
+#define  SSB_SPROM8_AGAIN0		0x00FF	/* Antenna 0 */
+#define  SSB_SPROM8_AGAIN0_SHIFT	0
+#define  SSB_SPROM8_AGAIN1		0xFF00	/* Antenna 1 */
+#define  SSB_SPROM8_AGAIN1_SHIFT	8
+#define SSB_SPROM8_AGAIN23		0x10A0
+#define  SSB_SPROM8_AGAIN2		0x00FF	/* Antenna 2 */
+#define  SSB_SPROM8_AGAIN2_SHIFT	0
+#define  SSB_SPROM8_AGAIN3		0xFF00	/* Antenna 3 */
+#define  SSB_SPROM8_AGAIN3_SHIFT	8
+#define SSB_SPROM8_GPIOA		0x1096	/*Gen. Purpose IO # 0 and 1 */
+#define  SSB_SPROM8_GPIOA_P0		0x00FF	/* Pin 0 */
+#define  SSB_SPROM8_GPIOA_P1		0xFF00	/* Pin 1 */
+#define  SSB_SPROM8_GPIOA_P1_SHIFT	8
+#define SSB_SPROM8_GPIOB		0x1098	/* Gen. Purpose IO # 2 and 3 */
+#define  SSB_SPROM8_GPIOB_P2		0x00FF	/* Pin 2 */
+#define  SSB_SPROM8_GPIOB_P3		0xFF00	/* Pin 3 */
+#define  SSB_SPROM8_GPIOB_P3_SHIFT	8
+#define SSB_SPROM8_MAXP_BG		0x10C0  /* Max Power BG in path 1 */
+#define  SSB_SPROM8_MAXP_BG_MASK	0x00FF  /* Mask for Max Power BG */
+#define  SSB_SPROM8_ITSSI_BG		0xFF00	/* Mask for path 1 itssi_bg */
+#define  SSB_SPROM8_ITSSI_BG_SHIFT	8
+#define SSB_SPROM8_MAXP_A		0x10C8  /* Max Power A in path 1 */
+#define  SSB_SPROM8_MAXP_A_MASK		0x00FF  /* Mask for Max Power A */
+#define  SSB_SPROM8_ITSSI_A		0xFF00	/* Mask for path 1 itssi_a */
+#define  SSB_SPROM8_ITSSI_A_SHIFT	8
 
 /* Values for SSB_SPROM1_BINF_CCODE */
 enum {
-- 
cgit v1.2.3


From dc822b5db479dc0178d5c04cbb656dad0b6564fb Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 29 Dec 2008 12:55:09 +0100
Subject: mac80211: clean up set_key callback

The set_key callback now seems rather odd, passing a MAC address
instead of a station struct, and a local address instead of a
vif struct. Change that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Bob Copeland <me@bobcopeland.com> [ath5k]
Acked-by: Ivo van Doorn <ivdoorn@gmail.com> [rt2x00]
Acked-by: Christian Lamparter <chunkeey@web.de> [p54]
Tested-by: Kalle Valo <kalle.valo@nokia.com> [iwl3945]
Tested-by: Samuel Ortiz <samuel@sortiz.org> [iwl3945]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath5k/base.c           |  9 ++---
 drivers/net/wireless/ath5k/pcu.c            |  2 +-
 drivers/net/wireless/ath9k/main.c           | 18 ++++++----
 drivers/net/wireless/b43/main.c             | 13 +++++---
 drivers/net/wireless/iwlwifi/iwl-agn.c      | 10 +++---
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 12 ++++---
 drivers/net/wireless/p54/p54common.c        |  6 ++--
 drivers/net/wireless/rt2x00/rt2x00.h        |  2 +-
 drivers/net/wireless/rt2x00/rt2x00mac.c     | 29 +++++++---------
 include/net/mac80211.h                      | 20 +++++------
 net/mac80211/key.c                          | 51 ++++++++++++++---------------
 11 files changed, 89 insertions(+), 83 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 8ef87356e083..88618645a7e4 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -232,7 +232,7 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw,
 		int mc_count, struct dev_mc_list *mclist);
 static int ath5k_set_key(struct ieee80211_hw *hw,
 		enum set_key_cmd cmd,
-		const u8 *local_addr, const u8 *addr,
+		struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 		struct ieee80211_key_conf *key);
 static int ath5k_get_stats(struct ieee80211_hw *hw,
 		struct ieee80211_low_level_stats *stats);
@@ -2991,8 +2991,8 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw,
 
 static int
 ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-		const u8 *local_addr, const u8 *addr,
-		struct ieee80211_key_conf *key)
+	      struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+	      struct ieee80211_key_conf *key)
 {
 	struct ath5k_softc *sc = hw->priv;
 	int ret = 0;
@@ -3015,7 +3015,8 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 	switch (cmd) {
 	case SET_KEY:
-		ret = ath5k_hw_set_key(sc->ah, key->keyidx, key, addr);
+		ret = ath5k_hw_set_key(sc->ah, key->keyidx, key,
+				       sta ? sta->addr : NULL);
 		if (ret) {
 			ATH5K_ERR(sc, "can't set the key\n");
 			goto unlock;
diff --git a/drivers/net/wireless/ath5k/pcu.c b/drivers/net/wireless/ath5k/pcu.c
index 75eb9f43c741..5b416ed65299 100644
--- a/drivers/net/wireless/ath5k/pcu.c
+++ b/drivers/net/wireless/ath5k/pcu.c
@@ -1139,7 +1139,7 @@ int ath5k_hw_set_key_lladdr(struct ath5k_hw *ah, u16 entry, const u8 *mac)
 
 	/* MAC may be NULL if it's a broadcast key. In this case no need to
 	 * to compute AR5K_LOW_ID and AR5K_HIGH_ID as we already know it. */
-	if (unlikely(mac == NULL)) {
+	if (!mac) {
 		low_id = 0xffffffff;
 		high_id = 0xffff | AR5K_KEYTABLE_VALID;
 	} else {
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 5cbda9245560..a4046a97c016 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -794,7 +794,7 @@ static int ath_reserve_key_cache_slot(struct ath_softc *sc)
 }
 
 static int ath_key_config(struct ath_softc *sc,
-			  const u8 *addr,
+			  struct ieee80211_sta *sta,
 			  struct ieee80211_key_conf *key)
 {
 	struct ath9k_keyval hk;
@@ -828,7 +828,10 @@ static int ath_key_config(struct ath_softc *sc,
 	} else if (key->keyidx) {
 		struct ieee80211_vif *vif;
 
-		mac = addr;
+		if (WARN_ON(!sta))
+			return -EOPNOTSUPP;
+		mac = sta->addr;
+
 		vif = sc->sc_vaps[0];
 		if (vif->type != NL80211_IFTYPE_AP) {
 			/* Only keyidx 0 should be used with unicast key, but
@@ -837,7 +840,10 @@ static int ath_key_config(struct ath_softc *sc,
 		} else
 			return -EIO;
 	} else {
-		mac = addr;
+		if (WARN_ON(!sta))
+			return -EOPNOTSUPP;
+		mac = sta->addr;
+
 		if (key->alg == ALG_TKIP)
 			idx = ath_reserve_key_cache_slot_tkip(sc);
 		else
@@ -2320,8 +2326,8 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw,
 
 static int ath9k_set_key(struct ieee80211_hw *hw,
 			 enum set_key_cmd cmd,
-			 const u8 *local_addr,
-			 const u8 *addr,
+			 struct ieee80211_vif *vif,
+			 struct ieee80211_sta *sta,
 			 struct ieee80211_key_conf *key)
 {
 	struct ath_softc *sc = hw->priv;
@@ -2331,7 +2337,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
 
 	switch (cmd) {
 	case SET_KEY:
-		ret = ath_key_config(sc, addr, key);
+		ret = ath_key_config(sc, sta, key);
 		if (ret >= 0) {
 			key->hw_key_idx = ret;
 			/* push IV and Michael MIC generation to stack */
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 5ca55dcd0345..19ad5164fce7 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3476,8 +3476,8 @@ out_unlock_mutex:
 }
 
 static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-			   const u8 *local_addr, const u8 *addr,
-			   struct ieee80211_key_conf *key)
+			  struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+			  struct ieee80211_key_conf *key)
 {
 	struct b43_wl *wl = hw_to_b43_wl(hw);
 	struct b43_wldev *dev;
@@ -3542,9 +3542,14 @@ static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		}
 
 		if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
+			if (WARN_ON(!sta)) {
+				err = -EOPNOTSUPP;
+				goto out_unlock;
+			}
 			/* Pairwise key with an assigned MAC address. */
 			err = b43_key_write(dev, -1, algorithm,
-					    key->key, key->keylen, addr, key);
+					    key->key, key->keylen,
+					    sta->addr, key);
 		} else {
 			/* Group key */
 			err = b43_key_write(dev, index, algorithm,
@@ -3577,7 +3582,7 @@ out_unlock:
 		b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
 		       "mac: %pM\n",
 		       cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
-		       addr);
+		       sta ? sta->addr : "<group key>");
 		b43_dump_keymemory(dev);
 	}
 	write_unlock(&wl->tx_lock);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index f3f6dba7a673..dbfee28107a5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3021,13 +3021,17 @@ static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw,
 }
 
 static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-			   const u8 *local_addr, const u8 *addr,
+			   struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta,
 			   struct ieee80211_key_conf *key)
 {
 	struct iwl_priv *priv = hw->priv;
 	int ret = 0;
 	u8 sta_id = IWL_INVALID_STATION;
 	u8 is_default_wep_key = 0;
+	static const u8 bcast_addr[ETH_ALEN] =
+		{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, };
+	static const u8 *addr;
 
 	IWL_DEBUG_MAC80211("enter\n");
 
@@ -3036,9 +3040,7 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		return -EOPNOTSUPP;
 	}
 
-	if (is_zero_ether_addr(addr))
-		/* only support pairwise keys */
-		return -EOPNOTSUPP;
+	addr = sta ? sta->addr : bcast_addr;
 
 	sta_id = iwl_find_station(priv, addr);
 	if (sta_id == IWL_INVALID_STATION) {
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index a176f42fd7cf..43cfc6ec5163 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -6546,12 +6546,16 @@ out_unlock:
 }
 
 static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-			   const u8 *local_addr, const u8 *addr,
-			   struct ieee80211_key_conf *key)
+			       struct ieee80211_vif *vif,
+			       struct ieee80211_sta *sta,
+			       struct ieee80211_key_conf *key)
 {
 	struct iwl_priv *priv = hw->priv;
+	const u8 *addr;
 	int rc = 0;
 	u8 sta_id;
+	static const u8 bcast_addr[ETH_ALEN] =
+		{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
 	IWL_DEBUG_MAC80211("enter\n");
 
@@ -6560,9 +6564,7 @@ static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		return -EOPNOTSUPP;
 	}
 
-	if (is_zero_ether_addr(addr))
-		/* only support pairwise keys */
-		return -EOPNOTSUPP;
+	addr = sta ? sta->addr : bcast_addr;
 
 	sta_id = iwl3945_hw_find_station(priv, addr);
 	if (sta_id == IWL_INVALID_STATION) {
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index 8d2df5b6ecbf..0907e6f246e6 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -2127,7 +2127,7 @@ static void p54_bss_info_changed(struct ieee80211_hw *dev,
 }
 
 static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
-		       const u8 *local_address, const u8 *address,
+		       struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 		       struct ieee80211_key_conf *key)
 {
 	struct p54_common *priv = dev->priv;
@@ -2191,8 +2191,8 @@ static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
 	rxkey->entry = key->keyidx;
 	rxkey->key_id = key->keyidx;
 	rxkey->key_type = algo;
-	if (address)
-		memcpy(rxkey->mac, address, ETH_ALEN);
+	if (sta)
+		memcpy(rxkey->mac, sta->addr, ETH_ALEN);
 	else
 		memset(rxkey->mac, ~0, ETH_ALEN);
 	if (key->alg != ALG_TKIP) {
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 1ef3434a2bae..890c7216cf38 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -931,7 +931,7 @@ void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
 				int mc_count, struct dev_addr_list *mc_list);
 #ifdef CONFIG_RT2X00_LIB_CRYPTO
 int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-		      const u8 *local_address, const u8 *address,
+		      struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 		      struct ieee80211_key_conf *key);
 #else
 #define rt2x00mac_set_key	NULL
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index bf7755a21645..3e204406f44f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -502,15 +502,17 @@ static void memcpy_tkip(struct rt2x00lib_crypto *crypto, u8 *key, u8 key_len)
 }
 
 int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-		      const u8 *local_address, const u8 *address,
+		      struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 		      struct ieee80211_key_conf *key)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
-	struct ieee80211_sta *sta;
+	struct rt2x00_intf *intf = vif_to_intf(vif);
 	int (*set_key) (struct rt2x00_dev *rt2x00dev,
 			struct rt2x00lib_crypto *crypto,
 			struct ieee80211_key_conf *key);
 	struct rt2x00lib_crypto crypto;
+	static const u8 bcast_addr[ETH_ALEN] =
+		{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, };
 
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
@@ -528,32 +530,25 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	if (rt2x00dev->intf_sta_count)
 		crypto.bssidx = 0;
 	else
-		crypto.bssidx =
-		    local_address[5] & (rt2x00dev->ops->max_ap_intf - 1);
+		crypto.bssidx = intf->mac[5] & (rt2x00dev->ops->max_ap_intf - 1);
 
 	crypto.cipher = rt2x00crypto_key_to_cipher(key);
 	if (crypto.cipher == CIPHER_NONE)
 		return -EOPNOTSUPP;
 
 	crypto.cmd = cmd;
-	crypto.address = address;
+
+	if (sta) {
+		/* some drivers need the AID */
+		crypto.aid = sta->aid;
+		crypto.address = sta->addr;
+	} else
+		crypto.address = bcast_addr;
 
 	if (crypto.cipher == CIPHER_TKIP)
 		memcpy_tkip(&crypto, &key->key[0], key->keylen);
 	else
 		memcpy(&crypto.key, &key->key[0], key->keylen);
-
-	/*
-	 * Discover the Association ID from mac80211.
-	 * Some drivers need this information when updating the
-	 * hardware key (either adding or removing).
-	 */
-	rcu_read_lock();
-	sta = ieee80211_find_sta(hw, address);
-	if (sta)
-		crypto.aid = sta->aid;
-	rcu_read_unlock();
-
 	/*
 	 * Each BSS has a maximum of 4 shared keys.
 	 * Shared key index values:
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ffcbd12775a4..9215b1ec90ec 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -715,8 +715,8 @@ enum ieee80211_key_flags {
  * 	- Temporal Encryption Key (128 bits)
  * 	- Temporal Authenticator Tx MIC Key (64 bits)
  * 	- Temporal Authenticator Rx MIC Key (64 bits)
- * @icv_len: FIXME
- * @iv_len: FIXME
+ * @icv_len: The ICV length for this key type
+ * @iv_len: The IV length for this key type
  */
 struct ieee80211_key_conf {
 	enum ieee80211_key_alg alg;
@@ -1019,16 +1019,12 @@ ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
  *
  * The set_key() callback in the &struct ieee80211_ops for a given
  * device is called to enable hardware acceleration of encryption and
- * decryption. The callback takes an @address parameter that will be
- * the broadcast address for default keys, the other station's hardware
- * address for individual keys or the zero address for keys that will
- * be used only for transmission.
+ * decryption. The callback takes a @sta parameter that will be NULL
+ * for default keys or keys used for transmission only, or point to
+ * the station information for the peer for individual keys.
  * Multiple transmission keys with the same key index may be used when
  * VLANs are configured for an access point.
  *
- * The @local_address parameter will always be set to our own address,
- * this is only relevant if you support multiple local addresses.
- *
  * When transmitting, the TX control data will use the @hw_key_idx
  * selected by the driver by modifying the &struct ieee80211_key_conf
  * pointed to by the @key parameter to the set_key() function.
@@ -1233,8 +1229,8 @@ enum ieee80211_ampdu_mlme_action {
  *
  * @set_key: See the section "Hardware crypto acceleration"
  *	This callback can sleep, and is only called between add_interface
- *	and remove_interface calls, i.e. while the interface with the
- *	given local_address is enabled.
+ *	and remove_interface calls, i.e. while the given virtual interface
+ *	is enabled.
  *
  * @update_tkip_key: See the section "Hardware crypto acceleration"
  * 	This callback will be called in the context of Rx. Called for drivers
@@ -1311,7 +1307,7 @@ struct ieee80211_ops {
 	int (*set_tim)(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
 		       bool set);
 	int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-		       const u8 *local_address, const u8 *address,
+		       struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 		       struct ieee80211_key_conf *key);
 	void (*update_tkip_key)(struct ieee80211_hw *hw,
 			struct ieee80211_key_conf *conf, const u8 *address,
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 999f7aa42326..b0a025c9b615 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -47,7 +47,6 @@
  */
 
 static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-static const u8 zero_addr[ETH_ALEN];
 
 /* key mutex: used to synchronise todo runners */
 static DEFINE_MUTEX(key_mutex);
@@ -108,29 +107,18 @@ static void assert_key_lock(void)
 	WARN_ON(!mutex_is_locked(&key_mutex));
 }
 
-static const u8 *get_mac_for_key(struct ieee80211_key *key)
+static struct ieee80211_sta *get_sta_for_key(struct ieee80211_key *key)
 {
-	const u8 *addr = bcast_addr;
-
-	/*
-	 * If we're an AP we won't ever receive frames with a non-WEP
-	 * group key so we tell the driver that by using the zero MAC
-	 * address to indicate a transmit-only key.
-	 */
-	if (key->conf.alg != ALG_WEP &&
-	    (key->sdata->vif.type == NL80211_IFTYPE_AP ||
-	     key->sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
-		addr = zero_addr;
-
 	if (key->sta)
-		addr = key->sta->sta.addr;
+		return &key->sta->sta;
 
-	return addr;
+	return NULL;
 }
 
 static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 {
-	const u8 *addr;
+	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sta *sta;
 	int ret;
 
 	assert_key_lock();
@@ -139,11 +127,16 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 	if (!key->local->ops->set_key)
 		return;
 
-	addr = get_mac_for_key(key);
+	sta = get_sta_for_key(key);
+
+	sdata = key->sdata;
+	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+		sdata = container_of(sdata->bss,
+				     struct ieee80211_sub_if_data,
+				     u.ap);
 
 	ret = key->local->ops->set_key(local_to_hw(key->local), SET_KEY,
-				       key->sdata->dev->dev_addr, addr,
-				       &key->conf);
+				       &sdata->vif, sta, &key->conf);
 
 	if (!ret) {
 		spin_lock(&todo_lock);
@@ -155,12 +148,13 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 		printk(KERN_ERR "mac80211-%s: failed to set key "
 		       "(%d, %pM) to hardware (%d)\n",
 		       wiphy_name(key->local->hw.wiphy),
-		       key->conf.keyidx, addr, ret);
+		       key->conf.keyidx, sta ? sta->addr : bcast_addr, ret);
 }
 
 static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 {
-	const u8 *addr;
+	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sta *sta;
 	int ret;
 
 	assert_key_lock();
@@ -176,17 +170,22 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 	}
 	spin_unlock(&todo_lock);
 
-	addr = get_mac_for_key(key);
+	sta = get_sta_for_key(key);
+	sdata = key->sdata;
+
+	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+		sdata = container_of(sdata->bss,
+				     struct ieee80211_sub_if_data,
+				     u.ap);
 
 	ret = key->local->ops->set_key(local_to_hw(key->local), DISABLE_KEY,
-				       key->sdata->dev->dev_addr, addr,
-				       &key->conf);
+				       &sdata->vif, sta, &key->conf);
 
 	if (ret)
 		printk(KERN_ERR "mac80211-%s: failed to remove key "
 		       "(%d, %pM) from hardware (%d)\n",
 		       wiphy_name(key->local->hw.wiphy),
-		       key->conf.keyidx, addr, ret);
+		       key->conf.keyidx, sta ? sta->addr : bcast_addr, ret);
 
 	spin_lock(&todo_lock);
 	key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
-- 
cgit v1.2.3


From 63649b6cf0a964582af2b4d4734e28ca90ec8f5c Mon Sep 17 00:00:00 2001
From: Bob Copeland <me@bobcopeland.com>
Date: Thu, 1 Jan 2009 15:01:44 -0500
Subject: ath5k: support LEDs on Acer Aspire One netbook

Add vendor ID for Foxconn and use it to set the ath5k LED gpio and
polarity for Acer branded laptops.

base.c:
Changes-licensed-under: 3-Clause-BSD

Reported-by: Maxim Levitsky <maximlevitsky@gmail.com>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Tested-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath5k/base.c | 7 +++++++
 include/linux/pci_ids.h           | 2 ++
 2 files changed, 9 insertions(+)

(limited to 'include')

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 88618645a7e4..fdf7733e76e1 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -2596,6 +2596,13 @@ ath5k_init_leds(struct ath5k_softc *sc)
 		sc->led_pin = 1;
 		sc->led_on = 1;  /* active high */
 	}
+	/* Pin 3 on Foxconn chips used in Acer Aspire One (0x105b:e008) */
+	if (pdev->subsystem_vendor == PCI_VENDOR_ID_FOXCONN) {
+		__set_bit(ATH_STAT_LEDSOFT, sc->status);
+		sc->led_pin = 3;
+		sc->led_on = 0;  /* active low */
+	}
+
 	if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
 		goto out;
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 302423afa136..5b7a48c1d616 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -834,6 +834,8 @@
 #define PCI_DEVICE_ID_PROMISE_20276	0x5275
 #define PCI_DEVICE_ID_PROMISE_20277	0x7275
 
+#define PCI_VENDOR_ID_FOXCONN		0x105b
+
 #define PCI_VENDOR_ID_UMC		0x1060
 #define PCI_DEVICE_ID_UMC_UM8673F	0x0101
 #define PCI_DEVICE_ID_UMC_UM8886BF	0x673a
-- 
cgit v1.2.3


From 2bf30fabadbdcb535b057afc92aba015884847dc Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 6 Jan 2009 23:23:56 +0100
Subject: mac80211: remove user_power_level from driver API

I missed this during review of "mac80211: Fix tx power setting",
the user_power_level shouldn't be available to the driver but
rather be an internal value used to calculate the value for the
driver.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h     | 2 --
 net/mac80211/ieee80211_i.h | 2 ++
 net/mac80211/main.c        | 4 ++--
 net/mac80211/wext.c        | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9215b1ec90ec..0ffe932942fd 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -546,7 +546,6 @@ enum ieee80211_conf_changed {
  * @listen_interval: listen interval in units of beacon interval
  * @flags: configuration flags defined above
  * @power_level: requested transmit power (in dBm)
- * @user_power_level: User configured transmit power (in dBm)
  * @channel: the channel to tune to
  * @ht: the HT configuration for the device
  * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame
@@ -560,7 +559,6 @@ struct ieee80211_conf {
 	int beacon_int;
 	u32 flags;
 	int power_level;
-	int user_power_level;
 
 	u16 listen_interval;
 	bool radio_enabled;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 85c4d3144f9f..fa5ca14517f5 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -705,6 +705,8 @@ struct ieee80211_local {
 	struct work_struct dynamic_ps_disable_work;
 	struct timer_list dynamic_ps_timer;
 
+	int user_power_level; /* in dBm */
+
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct local_debugfsdentries {
 		struct dentry *rcdir;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index dca4b7da6cad..b55b9970dc97 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -214,10 +214,10 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
 	}
 
-	if (!local->hw.conf.user_power_level)
+	if (!local->user_power_level)
 		power = chan->max_power;
 	else
-		power = min(chan->max_power, local->hw.conf.user_power_level);
+		power = min(chan->max_power, local->user_power_level);
 	if (local->hw.conf.power_level != power) {
 		changed |= IEEE80211_CONF_CHANGE_POWER;
 		local->hw.conf.power_level = power;
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index bb2c7135a1c8..5690c3d41e7d 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -551,7 +551,7 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
 	else /* Automatic power level setting */
 		new_power_level = chan->max_power;
 
-	local->hw.conf.user_power_level = new_power_level;
+	local->user_power_level = new_power_level;
 	if (local->hw.conf.power_level != new_power_level)
 		reconf_flags |= IEEE80211_CONF_CHANGE_POWER;
 
-- 
cgit v1.2.3


From 4797938c5dfa22af30fd16679192972f878419a1 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 7 Jan 2009 10:13:27 +0100
Subject: mac80211: clean up channel type config

The channel_type really doesn't need to be the only member in
a new structure, so remove the struct. Additionally, remove
the _CONF_CHANGE_HT flag and use _CONF_CHANGE_CHANNEL when the
channel type changes, since that's enough of a change to require
reprogramming the hardware anyway.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c |  5 ++---
 include/net/mac80211.h            | 20 +++++++-------------
 net/mac80211/ht.c                 |  8 +++++---
 net/mac80211/main.c               |  4 ++--
 net/mac80211/mlme.c               |  2 +-
 5 files changed, 17 insertions(+), 22 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 8929b02aa22d..5e9a3e19da40 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -2117,8 +2117,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 	struct ieee80211_conf *conf = &hw->conf;
 
 	mutex_lock(&sc->mutex);
-	if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
-		       IEEE80211_CONF_CHANGE_HT)) {
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 		struct ieee80211_channel *curchan = hw->conf.channel;
 		int pos;
 
@@ -2144,7 +2143,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 
 			sc->sc_ah->ah_channels[pos].chanmode =
 				ath_get_extchanmode(sc, curchan,
-						    conf->ht.channel_type);
+						    conf->channel_type);
 		}
 
 		ath_update_chainmask(sc, conf_is_ht(conf));
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 0ffe932942fd..76537f103872 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -507,10 +507,6 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
 }
 #define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME())
 
-struct ieee80211_ht_conf {
-	enum nl80211_channel_type channel_type;
-};
-
 /**
  * enum ieee80211_conf_changed - denotes which configuration changed
  *
@@ -520,9 +516,8 @@ struct ieee80211_ht_conf {
  * @IEEE80211_CONF_CHANGE_RADIOTAP: the radiotap flag changed
  * @IEEE80211_CONF_CHANGE_PS: the PS flag changed
  * @IEEE80211_CONF_CHANGE_POWER: the TX power changed
- * @IEEE80211_CONF_CHANGE_CHANNEL: the channel changed
+ * @IEEE80211_CONF_CHANGE_CHANNEL: the channel/channel_type changed
  * @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed
- * @IEEE80211_CONF_CHANGE_HT: HT configuration changed
  */
 enum ieee80211_conf_changed {
 	IEEE80211_CONF_CHANGE_RADIO_ENABLED	= BIT(0),
@@ -533,7 +528,6 @@ enum ieee80211_conf_changed {
 	IEEE80211_CONF_CHANGE_POWER		= BIT(5),
 	IEEE80211_CONF_CHANGE_CHANNEL		= BIT(6),
 	IEEE80211_CONF_CHANGE_RETRY_LIMITS	= BIT(7),
-	IEEE80211_CONF_CHANGE_HT		= BIT(8),
 };
 
 /**
@@ -547,7 +541,7 @@ enum ieee80211_conf_changed {
  * @flags: configuration flags defined above
  * @power_level: requested transmit power (in dBm)
  * @channel: the channel to tune to
- * @ht: the HT configuration for the device
+ * @channel_type: the channel (HT) type
  * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame
  *    (a frame not RTS protected), called "dot11LongRetryLimit" in 802.11,
  *    but actually means the number of transmissions not the number of retries
@@ -566,7 +560,7 @@ struct ieee80211_conf {
 	u8 long_frame_max_tx_count, short_frame_max_tx_count;
 
 	struct ieee80211_channel *channel;
-	struct ieee80211_ht_conf ht;
+	enum nl80211_channel_type channel_type;
 };
 
 /**
@@ -1960,19 +1954,19 @@ void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
 static inline bool
 conf_is_ht20(struct ieee80211_conf *conf)
 {
-	return conf->ht.channel_type == NL80211_CHAN_HT20;
+	return conf->channel_type == NL80211_CHAN_HT20;
 }
 
 static inline bool
 conf_is_ht40_minus(struct ieee80211_conf *conf)
 {
-	return conf->ht.channel_type == NL80211_CHAN_HT40MINUS;
+	return conf->channel_type == NL80211_CHAN_HT40MINUS;
 }
 
 static inline bool
 conf_is_ht40_plus(struct ieee80211_conf *conf)
 {
-	return conf->ht.channel_type == NL80211_CHAN_HT40PLUS;
+	return conf->channel_type == NL80211_CHAN_HT40PLUS;
 }
 
 static inline bool
@@ -1984,7 +1978,7 @@ conf_is_ht40(struct ieee80211_conf *conf)
 static inline bool
 conf_is_ht(struct ieee80211_conf *conf)
 {
-	return conf->ht.channel_type != NL80211_CHAN_NO_HT;
+	return conf->channel_type != NL80211_CHAN_NO_HT;
 }
 
 #endif /* MAC80211_H */
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index f6547de5ac6b..832adf888ac3 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -131,12 +131,14 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 	}
 
 	ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
-		     channel_type != local->hw.conf.ht.channel_type;
+		     channel_type != local->hw.conf.channel_type;
 
 	local->oper_channel_type = channel_type;
 
-	if (ht_changed)
-		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
+	if (ht_changed) {
+                /* channel_type change automatically detected */
+		ieee80211_hw_config(local, 0);
+        }
 
 	/* disable HT */
 	if (!enable_ht)
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index b55b9970dc97..e9f3e85d1a9e 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -208,9 +208,9 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	}
 
 	if (chan != local->hw.conf.channel ||
-	    channel_type != local->hw.conf.ht.channel_type) {
+	    channel_type != local->hw.conf.channel_type) {
 		local->hw.conf.channel = chan;
-		local->hw.conf.ht.channel_type = channel_type;
+		local->hw.conf.channel_type = channel_type;
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
 	}
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index aafa112ae09c..6a90171c859f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -901,8 +901,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_unlock();
 
+	/* channel(_type) changes are handled by ieee80211_hw_config */
 	local->oper_channel_type = NL80211_CHAN_NO_HT;
-	config_changed |= IEEE80211_CONF_CHANGE_HT;
 
 	del_timer_sync(&local->dynamic_ps_timer);
 	cancel_work_sync(&local->dynamic_ps_enable_work);
-- 
cgit v1.2.3


From 46f2c4bd7e2ba2cfedbcd4fe15d316eebc608cba Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 6 Jan 2009 18:13:18 +0100
Subject: mac80211: move dynamic PS timeout to hardware config

This will be needed for drivers that set the
IEEE80211_HW_NO_STACK_DYNAMIC_PS flag and still
want to handle dynamic PS.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h     | 11 +++++++----
 net/mac80211/ieee80211_i.h |  1 -
 net/mac80211/mlme.c        |  5 +++--
 net/mac80211/tx.c          |  4 ++--
 net/mac80211/wext.c        | 14 ++++++++------
 5 files changed, 20 insertions(+), 15 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 76537f103872..83ee8a212296 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -515,6 +515,7 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
  * @IEEE80211_CONF_CHANGE_LISTEN_INTERVAL: the listen interval changed
  * @IEEE80211_CONF_CHANGE_RADIOTAP: the radiotap flag changed
  * @IEEE80211_CONF_CHANGE_PS: the PS flag changed
+ * @IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT: the dynamic PS timeout changed
  * @IEEE80211_CONF_CHANGE_POWER: the TX power changed
  * @IEEE80211_CONF_CHANGE_CHANNEL: the channel/channel_type changed
  * @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed
@@ -525,9 +526,10 @@ enum ieee80211_conf_changed {
 	IEEE80211_CONF_CHANGE_LISTEN_INTERVAL	= BIT(2),
 	IEEE80211_CONF_CHANGE_RADIOTAP		= BIT(3),
 	IEEE80211_CONF_CHANGE_PS		= BIT(4),
-	IEEE80211_CONF_CHANGE_POWER		= BIT(5),
-	IEEE80211_CONF_CHANGE_CHANNEL		= BIT(6),
-	IEEE80211_CONF_CHANGE_RETRY_LIMITS	= BIT(7),
+	IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT	= BIT(5),
+	IEEE80211_CONF_CHANGE_POWER		= BIT(6),
+	IEEE80211_CONF_CHANGE_CHANNEL		= BIT(7),
+	IEEE80211_CONF_CHANGE_RETRY_LIMITS	= BIT(8),
 };
 
 /**
@@ -540,6 +542,7 @@ enum ieee80211_conf_changed {
  * @listen_interval: listen interval in units of beacon interval
  * @flags: configuration flags defined above
  * @power_level: requested transmit power (in dBm)
+ * @dynamic_ps_timeout: dynamic powersave timeout (in ms)
  * @channel: the channel to tune to
  * @channel_type: the channel (HT) type
  * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame
@@ -552,7 +555,7 @@ enum ieee80211_conf_changed {
 struct ieee80211_conf {
 	int beacon_int;
 	u32 flags;
-	int power_level;
+	int power_level, dynamic_ps_timeout;
 
 	u16 listen_interval;
 	bool radio_enabled;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index fa5ca14517f5..3db6bc3cdaf2 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -700,7 +700,6 @@ struct ieee80211_local {
 	unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 
 	bool powersave;
-	int dynamic_ps_timeout;
 	struct work_struct dynamic_ps_enable_work;
 	struct work_struct dynamic_ps_disable_work;
 	struct timer_list dynamic_ps_timer;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 6a90171c859f..7709e7645671 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -777,9 +777,10 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 
 	if (local->powersave &&
 			!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS)) {
-		if (local->dynamic_ps_timeout > 0)
+		if (local->hw.conf.dynamic_ps_timeout > 0)
 			mod_timer(&local->dynamic_ps_timer, jiffies +
-				  msecs_to_jiffies(local->dynamic_ps_timeout));
+				  msecs_to_jiffies(
+					local->hw.conf.dynamic_ps_timeout));
 		else {
 			ieee80211_send_nullfunc(local, sdata, 1);
 			conf->flags |= IEEE80211_CONF_PS;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 96eca341160b..b18a72690119 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1296,7 +1296,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 
 	if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) &&
-	    local->dynamic_ps_timeout > 0) {
+	    local->hw.conf.dynamic_ps_timeout > 0) {
 		if (local->hw.conf.flags & IEEE80211_CONF_PS) {
 			ieee80211_stop_queues_by_reason(&local->hw,
 					IEEE80211_QUEUE_STOP_REASON_PS);
@@ -1305,7 +1305,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 
 		mod_timer(&local->dynamic_ps_timer, jiffies +
-				msecs_to_jiffies(local->dynamic_ps_timeout));
+		        msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));
 	}
 
 	memset(info, 0, sizeof(*info));
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 3fc1b903bfbc..3f2db0bda46c 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -863,17 +863,19 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 		timeout = wrq->value / 1000;
 
 set:
-	if (ps == local->powersave && timeout == local->dynamic_ps_timeout)
+	if (ps == local->powersave && timeout == conf->dynamic_ps_timeout)
 		return ret;
 
 	local->powersave = ps;
-	local->dynamic_ps_timeout = timeout;
+	conf->dynamic_ps_timeout = timeout;
 
-	if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) &&
-			(sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)) {
-		if (local->dynamic_ps_timeout > 0)
+	if (local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) {
+		ret = ieee80211_hw_config(local,
+					  IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT);
+	} else if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+		if (conf->dynamic_ps_timeout > 0)
 			mod_timer(&local->dynamic_ps_timer, jiffies +
-				  msecs_to_jiffies(local->dynamic_ps_timeout));
+				  msecs_to_jiffies(conf->dynamic_ps_timeout));
 		else {
 			if (local->powersave) {
 				ieee80211_send_nullfunc(local, sdata, 1);
-- 
cgit v1.2.3


From 4be8c3873e0b88397866d3ede578503e188f9ad2 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 7 Jan 2009 18:28:20 +0100
Subject: mac80211: extend/document powersave API

This modifies hardware flags for powersave to support three different
flags:
 * IEEE80211_HW_SUPPORTS_PS - indicates general PS support
 * IEEE80211_HW_PS_NULLFUNC_STACK - indicates nullfunc sending in software
 * IEEE80211_HW_SUPPORTS_DYNAMIC_PS - indicates dynamic PS on the device

It also adds documentation for all this which explains how to set the
various flags.

Additionally, it fixes a few things:
 * a spot where && was used to test flags
 * enable CONF_PS only when associated again

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 Documentation/DocBook/mac80211.tmpl     |  8 +++--
 drivers/net/wireless/iwlwifi/iwl-core.c |  3 +-
 drivers/net/wireless/rt2x00/rt2400pci.c |  4 ++-
 drivers/net/wireless/rt2x00/rt2500pci.c |  4 ++-
 drivers/net/wireless/rt2x00/rt2500usb.c |  4 ++-
 drivers/net/wireless/rt2x00/rt61pci.c   |  4 ++-
 drivers/net/wireless/rt2x00/rt73usb.c   |  4 ++-
 include/net/mac80211.h                  | 53 +++++++++++++++++++++++++++++----
 net/mac80211/mlme.c                     | 31 ++++++++++---------
 net/mac80211/tx.c                       |  2 +-
 net/mac80211/wext.c                     | 40 +++++++++++++++----------
 11 files changed, 111 insertions(+), 46 deletions(-)

(limited to 'include')

diff --git a/Documentation/DocBook/mac80211.tmpl b/Documentation/DocBook/mac80211.tmpl
index bdf908a6e545..8af6d9626878 100644
--- a/Documentation/DocBook/mac80211.tmpl
+++ b/Documentation/DocBook/mac80211.tmpl
@@ -17,8 +17,7 @@
     </authorgroup>
 
     <copyright>
-      <year>2007</year>
-      <year>2008</year>
+      <year>2007-2009</year>
       <holder>Johannes Berg</holder>
     </copyright>
 
@@ -223,6 +222,11 @@ usage should require reading the full document.
 !Finclude/net/mac80211.h ieee80211_key_flags
     </chapter>
 
+    <chapter id="powersave">
+      <title>Powersave support</title>
+!Pinclude/net/mac80211.h Powersave support
+    </chapter>
+
     <chapter id="qos">
       <title>Multiple queues and QoS support</title>
       <para>TBD</para>
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 76315c30e6fc..07c3870365be 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -805,7 +805,8 @@ int iwl_setup_mac(struct iwl_priv *priv)
 	/* Tell mac80211 our characteristics */
 	hw->flags = IEEE80211_HW_SIGNAL_DBM |
 		    IEEE80211_HW_NOISE_DBM |
-		    IEEE80211_HW_AMPDU_AGGREGATION;
+		    IEEE80211_HW_AMPDU_AGGREGATION |
+		    IEEE80211_HW_SUPPORTS_PS;
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_STATION) |
 		BIT(NL80211_IFTYPE_ADHOC);
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 9104113270d0..ae8bfd6b59df 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1449,7 +1449,9 @@ static int rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	 * Initialize all hw fields.
 	 */
 	rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
-			       IEEE80211_HW_SIGNAL_DBM;
+			       IEEE80211_HW_SIGNAL_DBM |
+			       IEEE80211_HW_SUPPORTS_PS |
+			       IEEE80211_HW_PS_NULLFUNC_STACK;
 	rt2x00dev->hw->extra_tx_headroom = 0;
 
 	SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index ebcc49770922..bca6798be153 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1749,7 +1749,9 @@ static int rt2500pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	 * Initialize all hw fields.
 	 */
 	rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
-			       IEEE80211_HW_SIGNAL_DBM;
+			       IEEE80211_HW_SIGNAL_DBM |
+			       IEEE80211_HW_SUPPORTS_PS |
+			       IEEE80211_HW_PS_NULLFUNC_STACK;
 
 	rt2x00dev->hw->extra_tx_headroom = 0;
 
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index e992bad64644..27a6971df579 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1801,7 +1801,9 @@ static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	rt2x00dev->hw->flags =
 	    IEEE80211_HW_RX_INCLUDES_FCS |
 	    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
-	    IEEE80211_HW_SIGNAL_DBM;
+	    IEEE80211_HW_SIGNAL_DBM |
+	    IEEE80211_HW_SUPPORTS_PS |
+	    IEEE80211_HW_PS_NULLFUNC_STACK;
 
 	rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
 
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 82d35a5a4aa7..549480a963e9 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2556,7 +2556,9 @@ static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	 */
 	rt2x00dev->hw->flags =
 	    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
-	    IEEE80211_HW_SIGNAL_DBM;
+	    IEEE80211_HW_SIGNAL_DBM |
+	    IEEE80211_HW_SUPPORTS_PS |
+	    IEEE80211_HW_PS_NULLFUNC_STACK;
 	rt2x00dev->hw->extra_tx_headroom = 0;
 
 	SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 2b70c01b55e9..849220236c7d 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -2077,7 +2077,9 @@ static int rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	 */
 	rt2x00dev->hw->flags =
 	    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
-	    IEEE80211_HW_SIGNAL_DBM;
+	    IEEE80211_HW_SIGNAL_DBM |
+	    IEEE80211_HW_SUPPORTS_PS |
+	    IEEE80211_HW_PS_NULLFUNC_STACK;
 	rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
 
 	SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 83ee8a212296..8a305bfdb87b 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -850,10 +850,15 @@ enum ieee80211_tkip_key_type {
  * @IEEE80211_HW_AMPDU_AGGREGATION:
  *	Hardware supports 11n A-MPDU aggregation.
  *
- * @IEEE80211_HW_NO_STACK_DYNAMIC_PS:
- *	Hardware which has dynamic power save support, meaning
- *	that power save is enabled in idle periods, and don't need support
- *	from stack.
+ * @IEEE80211_HW_SUPPORTS_PS:
+ *	Hardware has power save support (i.e. can go to sleep).
+ *
+ * @IEEE80211_HW_PS_NULLFUNC_STACK:
+ *	Hardware requires nullfunc frame handling in stack, implies
+ *	stack support for dynamic PS.
+ *
+ * @IEEE80211_HW_SUPPORTS_DYNAMIC_PS:
+ *	Hardware has support for dynamic PS.
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_RX_INCLUDES_FCS			= 1<<1,
@@ -866,7 +871,9 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_NOISE_DBM				= 1<<8,
 	IEEE80211_HW_SPECTRUM_MGMT			= 1<<9,
 	IEEE80211_HW_AMPDU_AGGREGATION			= 1<<10,
-	IEEE80211_HW_NO_STACK_DYNAMIC_PS		= 1<<11,
+	IEEE80211_HW_SUPPORTS_PS			= 1<<11,
+	IEEE80211_HW_PS_NULLFUNC_STACK			= 1<<12,
+	IEEE80211_HW_SUPPORTS_DYNAMIC_PS		= 1<<13,
 };
 
 /**
@@ -1052,6 +1059,42 @@ ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
  * handler is software decryption with wrap around of iv16.
  */
 
+/**
+ * DOC: Powersave support
+ *
+ * mac80211 has support for various powersave implementations.
+ *
+ * First, it can support hardware that handles all powersaving by
+ * itself, such hardware should simply set the %IEEE80211_HW_SUPPORTS_PS
+ * hardware flag. In that case, it will be told about the desired
+ * powersave mode depending on the association status, and the driver
+ * must take care of sending nullfunc frames when necessary, i.e. when
+ * entering and leaving powersave mode. The driver is required to look at
+ * the AID in beacons and signal to the AP that it woke up when it finds
+ * traffic directed to it. This mode supports dynamic PS by simply
+ * enabling/disabling PS.
+ *
+ * Additionally, such hardware may set the %IEEE80211_HW_SUPPORTS_DYNAMIC_PS
+ * flag to indicate that it can support dynamic PS mode itself (see below).
+ *
+ * Other hardware designs cannot send nullfunc frames by themselves and also
+ * need software support for parsing the TIM bitmap. This is also supported
+ * by mac80211 by combining the %IEEE80211_HW_SUPPORTS_PS and
+ * %IEEE80211_HW_PS_NULLFUNC_STACK flags. The hardware is of course still
+ * required to pass up beacons. Additionally, in this case, mac80211 will
+ * wake up the hardware when multicast traffic is announced in the beacon.
+ *
+ * FIXME: I don't think we can be fast enough in software when we want to
+ *	  receive multicast traffic?
+ *
+ * Dynamic powersave mode is an extension to normal powersave mode in which
+ * the hardware stays awake for a user-specified period of time after sending
+ * a frame so that reply frames need not be buffered and therefore delayed
+ * to the next wakeup. This can either be supported by hardware, in which case
+ * the driver needs to look at the @dynamic_ps_timeout hardware configuration
+ * value, or by the stack if all nullfunc handling is in the stack.
+ */
+
 /**
  * DOC: Frame filtering
  *
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7709e7645671..a1e683e305f0 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -775,17 +775,17 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	bss_info_changed |= BSS_CHANGED_BASIC_RATES;
 	ieee80211_bss_info_change_notify(sdata, bss_info_changed);
 
-	if (local->powersave &&
-			!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS)) {
-		if (local->hw.conf.dynamic_ps_timeout > 0)
+	if (local->powersave) {
+		if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) &&
+		    local->hw.conf.dynamic_ps_timeout > 0) {
 			mod_timer(&local->dynamic_ps_timer, jiffies +
 				  msecs_to_jiffies(
 					local->hw.conf.dynamic_ps_timeout));
-		else {
-			ieee80211_send_nullfunc(local, sdata, 1);
+		} else {
+			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+				ieee80211_send_nullfunc(local, sdata, 1);
 			conf->flags |= IEEE80211_CONF_PS;
-			ieee80211_hw_config(local,
-					    IEEE80211_CONF_CHANGE_PS);
+			ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 		}
 	}
 
@@ -1779,16 +1779,14 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
 				 elems.wmm_param_len);
 
-	if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS)) {
+	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK &&
+	    local->hw.conf.flags & IEEE80211_CONF_PS) {
 		directed_tim = check_tim(&elems, ifsta->aid, &is_mc);
 
 		if (directed_tim || is_mc) {
-			if (local->hw.conf.flags && IEEE80211_CONF_PS) {
-				local->hw.conf.flags &= ~IEEE80211_CONF_PS;
-				ieee80211_hw_config(local,
-						IEEE80211_CONF_CHANGE_PS);
-				ieee80211_send_nullfunc(local, sdata, 0);
-			}
+			local->hw.conf.flags &= ~IEEE80211_CONF_PS;
+			ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+			ieee80211_send_nullfunc(local, sdata, 0);
 		}
 	}
 
@@ -2694,9 +2692,10 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
 	if (local->hw.conf.flags & IEEE80211_CONF_PS)
 		return;
 
-	ieee80211_send_nullfunc(local, sdata, 1);
-	local->hw.conf.flags |= IEEE80211_CONF_PS;
+	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+		ieee80211_send_nullfunc(local, sdata, 1);
 
+	local->hw.conf.flags |= IEEE80211_CONF_PS;
 	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 }
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index b18a72690119..cd6bc87eec73 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1295,7 +1295,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		return 0;
 	}
 
-	if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) &&
+	if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
 	    local->hw.conf.dynamic_ps_timeout > 0) {
 		if (local->hw.conf.flags & IEEE80211_CONF_PS) {
 			ieee80211_stop_queues_by_reason(&local->hw,
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 3f2db0bda46c..1e5b29bdb3a7 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -837,6 +837,9 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 	int ret = 0, timeout = 0;
 	bool ps;
 
+	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
+		return -EOPNOTSUPP;
+
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return -EINVAL;
 
@@ -862,32 +865,37 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 	if (wrq->flags & IW_POWER_TIMEOUT)
 		timeout = wrq->value / 1000;
 
-set:
+ set:
 	if (ps == local->powersave && timeout == conf->dynamic_ps_timeout)
 		return ret;
 
 	local->powersave = ps;
 	conf->dynamic_ps_timeout = timeout;
 
-	if (local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) {
+	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
 		ret = ieee80211_hw_config(local,
 					  IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT);
-	} else if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
-		if (conf->dynamic_ps_timeout > 0)
-			mod_timer(&local->dynamic_ps_timer, jiffies +
-				  msecs_to_jiffies(conf->dynamic_ps_timeout));
-		else {
-			if (local->powersave) {
+
+	if (!(sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
+		return ret;
+
+	if (conf->dynamic_ps_timeout > 0 &&
+	    !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
+		mod_timer(&local->dynamic_ps_timer, jiffies +
+			  msecs_to_jiffies(conf->dynamic_ps_timeout));
+	} else {
+		if (local->powersave) {
+			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
 				ieee80211_send_nullfunc(local, sdata, 1);
-				conf->flags |= IEEE80211_CONF_PS;
-				ret = ieee80211_hw_config(local,
-						IEEE80211_CONF_CHANGE_PS);
-			} else {
-				conf->flags &= ~IEEE80211_CONF_PS;
-				ret = ieee80211_hw_config(local,
-						IEEE80211_CONF_CHANGE_PS);
+			conf->flags |= IEEE80211_CONF_PS;
+			ret = ieee80211_hw_config(local,
+					IEEE80211_CONF_CHANGE_PS);
+		} else {
+			conf->flags &= ~IEEE80211_CONF_PS;
+			ret = ieee80211_hw_config(local,
+					IEEE80211_CONF_CHANGE_PS);
+			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
 				ieee80211_send_nullfunc(local, sdata, 0);
-			}
 		}
 	}
 
-- 
cgit v1.2.3


From 3e0c3ff36c4c7b9e39af7d600e399664ca04e817 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Wed, 7 Jan 2009 17:43:34 -0800
Subject: cfg80211: allow multiple driver regulatory_hints()

We add support for multiple drivers to provide a regulatory_hint()
on a system by adding a wiphy specific regulatory domain cache.
This allows drivers to keep around cache their own regulatory domain
structure queried from CRDA.

We handle conflicts by intersecting multiple regulatory domains,
each driver will stick to its own regulatory domain though unless
a country IE has been received and processed.

If the user already requested a regulatory domain and a driver
requests the same regulatory domain then simply copy to the
driver's regd the same regulatory domain and do not call
CRDA, do not collect $200.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/wireless.h |   6 +++
 net/wireless/reg.c     | 104 +++++++++++++++++++++++++++++++++++++++++++------
 2 files changed, 98 insertions(+), 12 deletions(-)

(limited to 'include')

diff --git a/include/net/wireless.h b/include/net/wireless.h
index 21c5d966142d..9e73aae40c5d 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -187,6 +187,10 @@ struct ieee80211_supported_band {
  * 	we will disregard the first regulatory hint (when the
  * 	initiator is %REGDOM_SET_BY_CORE).
  * @reg_notifier: the driver's regulatory notification callback
+ * @regd: the driver's regulatory domain, if one was requested via
+ * 	the regulatory_hint() API. This can be used by the driver
+ *	on the reg_notifier() if it chooses to ignore future
+ *	regulatory domain changes caused by other drivers.
  */
 struct wiphy {
 	/* assign these fields before you register the wiphy */
@@ -213,6 +217,8 @@ struct wiphy {
 
 	/* fields below are read-only, assigned by cfg80211 */
 
+	const struct ieee80211_regdomain *regd;
+
 	/* the item in /sys/class/ieee80211/ points to this,
 	 * you need use set_wiphy_dev() (see below) */
 	struct device dev;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 0f93d4526f37..5a746cd114a6 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -784,6 +784,7 @@ static u32 map_regdom_flags(u32 rd_flags)
 
 /**
  * freq_reg_info - get regulatory information for the given frequency
+ * @wiphy: the wiphy for which we want to process this rule for
  * @center_freq: Frequency in KHz for which we want regulatory information for
  * @bandwidth: the bandwidth requirement you have in KHz, if you do not have one
  * 	you can set this to 0. If this frequency is allowed we then set
@@ -802,22 +803,31 @@ static u32 map_regdom_flags(u32 rd_flags)
  * freq_in_rule_band() for our current definition of a band -- this is purely
  * subjective and right now its 802.11 specific.
  */
-static int freq_reg_info(u32 center_freq, u32 *bandwidth,
+static int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
 			 const struct ieee80211_reg_rule **reg_rule)
 {
 	int i;
 	bool band_rule_found = false;
+	const struct ieee80211_regdomain *regd;
 	u32 max_bandwidth = 0;
 
-	if (!cfg80211_regdomain)
+	regd = cfg80211_regdomain;
+
+	/* Follow the driver's regulatory domain, if present, unless a country
+	 * IE has been processed */
+	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
+	    wiphy->regd)
+		regd = wiphy->regd;
+
+	if (!regd)
 		return -EINVAL;
 
-	for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
+	for (i = 0; i < regd->n_reg_rules; i++) {
 		const struct ieee80211_reg_rule *rr;
 		const struct ieee80211_freq_range *fr = NULL;
 		const struct ieee80211_power_rule *pr = NULL;
 
-		rr = &cfg80211_regdomain->reg_rules[i];
+		rr = &regd->reg_rules[i];
 		fr = &rr->freq_range;
 		pr = &rr->power_rule;
 
@@ -859,7 +869,7 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 
 	flags = chan->orig_flags;
 
-	r = freq_reg_info(MHZ_TO_KHZ(chan->center_freq),
+	r = freq_reg_info(wiphy, MHZ_TO_KHZ(chan->center_freq),
 		&max_bandwidth, &reg_rule);
 
 	if (r) {
@@ -952,6 +962,30 @@ void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
 		wiphy->reg_notifier(wiphy, setby);
 }
 
+static int reg_copy_regd(const struct ieee80211_regdomain **dst_regd,
+			 const struct ieee80211_regdomain *src_regd)
+{
+	struct ieee80211_regdomain *regd;
+	int size_of_regd = 0;
+	unsigned int i;
+
+	size_of_regd = sizeof(struct ieee80211_regdomain) +
+	  ((src_regd->n_reg_rules + 1) * sizeof(struct ieee80211_reg_rule));
+
+	regd = kzalloc(size_of_regd, GFP_KERNEL);
+	if (!regd)
+		return -ENOMEM;
+
+	memcpy(regd, src_regd, sizeof(struct ieee80211_regdomain));
+
+	for (i = 0; i < src_regd->n_reg_rules; i++)
+		memcpy(&regd->reg_rules[i], &src_regd->reg_rules[i],
+			sizeof(struct ieee80211_reg_rule));
+
+	*dst_regd = regd;
+	return 0;
+}
+
 /* Return value which can be used by ignore_request() to indicate
  * it has been determined we should intersect two regulatory domains */
 #define REG_INTERSECT	1
@@ -999,9 +1033,9 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
 		}
 		return REG_INTERSECT;
 	case REGDOM_SET_BY_DRIVER:
-		if (last_request->initiator == REGDOM_SET_BY_DRIVER)
-			return -EALREADY;
-		return 0;
+		if (last_request->initiator == REGDOM_SET_BY_CORE)
+			return 0;
+		return REG_INTERSECT;
 	case REGDOM_SET_BY_USER:
 		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
 			return REG_INTERSECT;
@@ -1028,11 +1062,28 @@ int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by,
 
 	r = ignore_request(wiphy, set_by, alpha2);
 
-	if (r == REG_INTERSECT)
+	if (r == REG_INTERSECT) {
+		if (set_by == REGDOM_SET_BY_DRIVER) {
+			r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
+			if (r)
+				return r;
+		}
 		intersect = true;
-	else if (r)
+	} else if (r) {
+		/* If the regulatory domain being requested by the
+		 * driver has already been set just copy it to the
+		 * wiphy */
+		if (r == -EALREADY && set_by == REGDOM_SET_BY_DRIVER) {
+			r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
+			if (r)
+				return r;
+			r = -EALREADY;
+			goto new_request;
+		}
 		return r;
+	}
 
+new_request:
 	request = kzalloc(sizeof(struct regulatory_request),
 			  GFP_KERNEL);
 	if (!request)
@@ -1048,6 +1099,11 @@ int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by,
 
 	kfree(last_request);
 	last_request = request;
+
+	/* When r == REG_INTERSECT we do need to call CRDA */
+	if (r < 0)
+		return r;
+
 	/*
 	 * Note: When CONFIG_WIRELESS_OLD_REGULATORY is enabled
 	 * AND if CRDA is NOT present nothing will happen, if someone
@@ -1341,6 +1397,23 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	}
 
 	if (!last_request->intersect) {
+		int r;
+
+		if (last_request->initiator != REGDOM_SET_BY_DRIVER) {
+			reset_regdomains();
+			cfg80211_regdomain = rd;
+			return 0;
+		}
+
+		/* For a driver hint, lets copy the regulatory domain the
+		 * driver wanted to the wiphy to deal with conflicts */
+
+		BUG_ON(last_request->wiphy->regd);
+
+		r = reg_copy_regd(&last_request->wiphy->regd, rd);
+		if (r)
+			return r;
+
 		reset_regdomains();
 		cfg80211_regdomain = rd;
 		return 0;
@@ -1354,8 +1427,14 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		if (!intersected_rd)
 			return -EINVAL;
 
-		/* We can trash what CRDA provided now */
-		kfree(rd);
+		/* We can trash what CRDA provided now.
+		 * However if a driver requested this specific regulatory
+		 * domain we keep it for its private use */
+		if (last_request->initiator == REGDOM_SET_BY_DRIVER)
+			last_request->wiphy->regd = rd;
+		else
+			kfree(rd);
+
 		rd = NULL;
 
 		reset_regdomains();
@@ -1439,6 +1518,7 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 /* Caller must hold cfg80211_drv_mutex */
 void reg_device_remove(struct wiphy *wiphy)
 {
+	kfree(wiphy->regd);
 	if (!last_request || !last_request->wiphy)
 		return;
 	if (last_request->wiphy != wiphy)
-- 
cgit v1.2.3


From 5394af4d86ae51b369ff243c3f75b6f9a74e164b Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:31:59 +0200
Subject: mac80211: 802.11w - STA flag for MFP

Add flags for setting STA entries and struct ieee80211_if_sta to
indicate whether management frame protection (MFP) is used.

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h    | 2 ++
 include/net/cfg80211.h     | 2 ++
 net/mac80211/cfg.c         | 4 ++++
 net/mac80211/debugfs_sta.c | 5 +++--
 net/mac80211/ieee80211_i.h | 1 +
 net/mac80211/mlme.c        | 7 +++++--
 net/mac80211/sta_info.h    | 2 ++
 7 files changed, 19 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index e86ed59f9ad5..218f0e73a7ae 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -412,12 +412,14 @@ enum nl80211_iftype {
  * @NL80211_STA_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
  *	with short barker preamble
  * @NL80211_STA_FLAG_WME: station is WME/QoS capable
+ * @NL80211_STA_FLAG_MFP: station uses management frame protection
  */
 enum nl80211_sta_flags {
 	__NL80211_STA_FLAG_INVALID,
 	NL80211_STA_FLAG_AUTHORIZED,
 	NL80211_STA_FLAG_SHORT_PREAMBLE,
 	NL80211_STA_FLAG_WME,
+	NL80211_STA_FLAG_MFP,
 
 	/* keep last */
 	__NL80211_STA_FLAG_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 23c0ab74ded6..6619ed106134 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -112,12 +112,14 @@ struct beacon_parameters {
  * @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
  *	with short preambles
  * @STATION_FLAG_WME: station is WME/QoS capable
+ * @STATION_FLAG_MFP: station uses management frame protection
  */
 enum station_flags {
 	STATION_FLAG_CHANGED		= 1<<0,
 	STATION_FLAG_AUTHORIZED		= 1<<NL80211_STA_FLAG_AUTHORIZED,
 	STATION_FLAG_SHORT_PREAMBLE	= 1<<NL80211_STA_FLAG_SHORT_PREAMBLE,
 	STATION_FLAG_WME		= 1<<NL80211_STA_FLAG_WME,
+	STATION_FLAG_MFP		= 1<<NL80211_STA_FLAG_MFP,
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 9d4e4d846ec1..309d9189aa49 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -630,6 +630,10 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 		sta->flags &= ~WLAN_STA_WME;
 		if (params->station_flags & STATION_FLAG_WME)
 			sta->flags |= WLAN_STA_WME;
+
+		sta->flags &= ~WLAN_STA_MFP;
+		if (params->station_flags & STATION_FLAG_MFP)
+			sta->flags |= WLAN_STA_MFP;
 		spin_unlock_bh(&sta->lock);
 	}
 
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index a2fbe0131312..90230c718b5b 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -67,14 +67,15 @@ static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
 	char buf[100];
 	struct sta_info *sta = file->private_data;
 	u32 staflags = get_sta_flags(sta);
-	int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s",
+	int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s",
 		staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
 		staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
 		staflags & WLAN_STA_PS ? "PS\n" : "",
 		staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
 		staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
 		staflags & WLAN_STA_WME ? "WME\n" : "",
-		staflags & WLAN_STA_WDS ? "WDS\n" : "");
+		staflags & WLAN_STA_WDS ? "WDS\n" : "",
+		staflags & WLAN_STA_MFP ? "MFP\n" : "");
 	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 }
 STA_OPS(flags);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3db6bc3cdaf2..b5f86cb17630 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -260,6 +260,7 @@ struct mesh_preq_queue {
 #define IEEE80211_STA_PRIVACY_INVOKED	BIT(13)
 #define IEEE80211_STA_TKIP_WEP_USED	BIT(14)
 #define IEEE80211_STA_CSA_RECEIVED	BIT(15)
+#define IEEE80211_STA_MFP_ENABLED	BIT(16)
 /* flags for MLME request */
 #define IEEE80211_STA_REQ_SCAN 0
 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index a1e683e305f0..bc8a7f1a6a15 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1,6 +1,6 @@
 /*
  * BSS client mode implementation
- * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2003-2008, Jouni Malinen <j@w1.fi>
  * Copyright 2004, Instant802 Networks, Inc.
  * Copyright 2005, Devicescape Software, Inc.
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
@@ -472,7 +472,7 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	/* u.deauth.reason_code == u.disassoc.reason_code */
 	mgmt->u.deauth.reason_code = cpu_to_le16(reason);
 
-	ieee80211_tx_skb(sdata, skb, 0);
+	ieee80211_tx_skb(sdata, skb, ifsta->flags & IEEE80211_STA_MFP_ENABLED);
 }
 
 /* MLME */
@@ -1408,6 +1408,9 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 
 	rate_control_rate_init(sta);
 
+	if (ifsta->flags & IEEE80211_STA_MFP_ENABLED)
+		set_sta_flags(sta, WLAN_STA_MFP);
+
 	if (elems.wmm_param)
 		set_sta_flags(sta, WLAN_STA_WME);
 
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index b683d3f5ef8a..d13a44b935e2 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -34,6 +34,7 @@
  * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
  *	IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
  *	frame to this station is transmitted.
+ * @WLAN_STA_MFP: Management frame protection is used with this STA.
  */
 enum ieee80211_sta_info_flags {
 	WLAN_STA_AUTH		= 1<<0,
@@ -46,6 +47,7 @@ enum ieee80211_sta_info_flags {
 	WLAN_STA_WDS		= 1<<7,
 	WLAN_STA_PSPOLL		= 1<<8,
 	WLAN_STA_CLEAR_PS_FILT	= 1<<9,
+	WLAN_STA_MFP		= 1<<10,
 };
 
 #define STA_TID_NUM 16
-- 
cgit v1.2.3


From fb7333367632c67d8b6b06fb8d906cdabb11b02a Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:00 +0200
Subject: mac80211: 802.11w - CCMP for management frames

Extend CCMP to support encryption and decryption of unicast management
frames.

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/ieee80211.h | 30 ++++++++++++++++++++++++++++++
 net/mac80211/tx.c         | 23 ++++++++++++++++++++++-
 net/mac80211/wpa.c        | 18 ++++++++++++------
 3 files changed, 64 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index cade2556af0e..d5165895f316 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1030,6 +1030,7 @@ enum ieee80211_category {
 	WLAN_CATEGORY_QOS = 1,
 	WLAN_CATEGORY_DLS = 2,
 	WLAN_CATEGORY_BACK = 3,
+	WLAN_CATEGORY_PUBLIC = 4,
 	WLAN_CATEGORY_WMM = 17,
 };
 
@@ -1185,6 +1186,35 @@ static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
 		return hdr->addr1;
 }
 
+/**
+ * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
+ * @hdr: the frame (buffer must include at least the first octet of payload)
+ */
+static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
+{
+	if (ieee80211_is_disassoc(hdr->frame_control) ||
+	    ieee80211_is_deauth(hdr->frame_control))
+		return true;
+
+	if (ieee80211_is_action(hdr->frame_control)) {
+		u8 *category;
+
+		/*
+		 * Action frames, excluding Public Action frames, are Robust
+		 * Management Frames. However, if we are looking at a Protected
+		 * frame, skip the check since the data may be encrypted and
+		 * the frame has already been found to be a Robust Management
+		 * Frame (by the other end).
+		 */
+		if (ieee80211_has_protected(hdr->frame_control))
+			return true;
+		category = ((u8 *) hdr) + 24;
+		return *category != WLAN_CATEGORY_PUBLIC;
+	}
+
+	return false;
+}
+
 /**
  * ieee80211_fhss_chan_to_freq - get channel frequency
  * @channel: the FHSS channel
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index cd6bc87eec73..50c6c4fabea5 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -330,6 +330,22 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
 	return TX_CONTINUE;
 }
 
+static int ieee80211_use_mfp(__le16 fc, struct sta_info *sta,
+			     struct sk_buff *skb)
+{
+	if (!ieee80211_is_mgmt(fc))
+		return 0;
+
+	if (sta == NULL || !test_sta_flags(sta, WLAN_STA_MFP))
+		return 0;
+
+	if (!ieee80211_is_robust_mgmt_frame((struct ieee80211_hdr *)
+					    skb->data))
+		return 0;
+
+	return 1;
+}
+
 static ieee80211_tx_result
 ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
 {
@@ -428,10 +444,15 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 			if (ieee80211_is_auth(hdr->frame_control))
 				break;
 		case ALG_TKIP:
-		case ALG_CCMP:
 			if (!ieee80211_is_data_present(hdr->frame_control))
 				tx->key = NULL;
 			break;
+		case ALG_CCMP:
+			if (!ieee80211_is_data_present(hdr->frame_control) &&
+			    !ieee80211_use_mfp(hdr->frame_control, tx->sta,
+					       tx->skb))
+				tx->key = NULL;
+			break;
 		}
 	}
 
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 7aa63caf8d50..aff46adde3f0 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -266,7 +266,7 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
 				int encrypted)
 {
 	__le16 mask_fc;
-	int a4_included;
+	int a4_included, mgmt;
 	u8 qos_tid;
 	u8 *b_0, *aad;
 	u16 data_len, len_a;
@@ -277,12 +277,15 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
 	aad = scratch + 4 * AES_BLOCK_LEN;
 
 	/*
-	 * Mask FC: zero subtype b4 b5 b6
+	 * Mask FC: zero subtype b4 b5 b6 (if not mgmt)
 	 * Retry, PwrMgt, MoreData; set Protected
 	 */
+	mgmt = ieee80211_is_mgmt(hdr->frame_control);
 	mask_fc = hdr->frame_control;
-	mask_fc &= ~cpu_to_le16(0x0070 | IEEE80211_FCTL_RETRY |
+	mask_fc &= ~cpu_to_le16(IEEE80211_FCTL_RETRY |
 				IEEE80211_FCTL_PM | IEEE80211_FCTL_MOREDATA);
+	if (!mgmt)
+		mask_fc &= ~cpu_to_le16(0x0070);
 	mask_fc |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
@@ -300,8 +303,10 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
 
 	/* First block, b_0 */
 	b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
-	/* Nonce: QoS Priority | A2 | PN */
-	b_0[1] = qos_tid;
+	/* Nonce: Nonce Flags | A2 | PN
+	 * Nonce Flags: Priority (b0..b3) | Management (b4) | Reserved (b5..b7)
+	 */
+	b_0[1] = qos_tid | (mgmt << 4);
 	memcpy(&b_0[2], hdr->addr2, ETH_ALEN);
 	memcpy(&b_0[8], pn, CCMP_PN_LEN);
 	/* l(m) */
@@ -446,7 +451,8 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 
-	if (!ieee80211_is_data(hdr->frame_control))
+	if (!ieee80211_is_data(hdr->frame_control) &&
+	    !ieee80211_is_robust_mgmt_frame(hdr))
 		return RX_CONTINUE;
 
 	data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
-- 
cgit v1.2.3


From 765cb46a3fc856245ea68a7c961ac87c77e4ae2d Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:01 +0200
Subject: mac80211: 802.11w - Add BIP (AES-128-CMAC)

Implement Broadcast/Multicast Integrity Protocol for management frame
protection. This patch adds the needed definitions for the new
information element (MMIE) and implementation for the new "encryption"
type (though, BIP is actually not encrypting data, it provides only
integrity protection). These routines will be used by a follow-on patch
that enables BIP for multicast/broadcast robust management frames.

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/ieee80211.h  |  10 ++++
 net/mac80211/Makefile      |   1 +
 net/mac80211/aes_cmac.c    | 135 +++++++++++++++++++++++++++++++++++++++++++++
 net/mac80211/aes_cmac.h    |  19 +++++++
 net/mac80211/ieee80211_i.h |   2 +-
 net/mac80211/key.h         |  10 ++++
 net/mac80211/wpa.c         | 125 +++++++++++++++++++++++++++++++++++++++++
 net/mac80211/wpa.h         |   5 ++
 8 files changed, 306 insertions(+), 1 deletion(-)
 create mode 100644 net/mac80211/aes_cmac.c
 create mode 100644 net/mac80211/aes_cmac.h

(limited to 'include')

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index d5165895f316..cceb9e86c744 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -655,6 +655,15 @@ struct ieee80211_mgmt {
 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 
 
+/* Management MIC information element (IEEE 802.11w) */
+struct ieee80211_mmie {
+	u8 element_id;
+	u8 length;
+	__le16 key_id;
+	u8 sequence_number[6];
+	u8 mic[8];
+} __attribute__ ((packed));
+
 /* Control frames */
 struct ieee80211_rts {
 	__le16 frame_control;
@@ -1018,6 +1027,7 @@ enum ieee80211_eid {
 	WLAN_EID_HT_INFORMATION = 61,
 	/* 802.11i */
 	WLAN_EID_RSN = 48,
+	WLAN_EID_MMIE = 76 /* 802.11w */,
 	WLAN_EID_WPA = 221,
 	WLAN_EID_GENERIC = 221,
 	WLAN_EID_VENDOR_SPECIFIC = 221,
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index 7d4971aa443f..5c6fadfb6a00 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -15,6 +15,7 @@ mac80211-y := \
 	michael.o \
 	tkip.o \
 	aes_ccm.o \
+	aes_cmac.o \
 	cfg.o \
 	rx.o \
 	spectmgmt.o \
diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c
new file mode 100644
index 000000000000..3d097b3d7b62
--- /dev/null
+++ b/net/mac80211/aes_cmac.c
@@ -0,0 +1,135 @@
+/*
+ * AES-128-CMAC with TLen 16 for IEEE 802.11w BIP
+ * Copyright 2008, Jouni Malinen <j@w1.fi>
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+
+#include <net/mac80211.h>
+#include "key.h"
+#include "aes_cmac.h"
+
+#define AES_BLOCK_SIZE 16
+#define AES_CMAC_KEY_LEN 16
+#define CMAC_TLEN 8 /* CMAC TLen = 64 bits (8 octets) */
+#define AAD_LEN 20
+
+
+static void gf_mulx(u8 *pad)
+{
+	int i, carry;
+
+	carry = pad[0] & 0x80;
+	for (i = 0; i < AES_BLOCK_SIZE - 1; i++)
+		pad[i] = (pad[i] << 1) | (pad[i + 1] >> 7);
+	pad[AES_BLOCK_SIZE - 1] <<= 1;
+	if (carry)
+		pad[AES_BLOCK_SIZE - 1] ^= 0x87;
+}
+
+
+static void aes_128_cmac_vector(struct crypto_cipher *tfm, u8 *scratch,
+				size_t num_elem,
+				const u8 *addr[], const size_t *len, u8 *mac)
+{
+	u8 *cbc, *pad;
+	const u8 *pos, *end;
+	size_t i, e, left, total_len;
+
+	cbc = scratch;
+	pad = scratch + AES_BLOCK_SIZE;
+
+	memset(cbc, 0, AES_BLOCK_SIZE);
+
+	total_len = 0;
+	for (e = 0; e < num_elem; e++)
+		total_len += len[e];
+	left = total_len;
+
+	e = 0;
+	pos = addr[0];
+	end = pos + len[0];
+
+	while (left >= AES_BLOCK_SIZE) {
+		for (i = 0; i < AES_BLOCK_SIZE; i++) {
+			cbc[i] ^= *pos++;
+			if (pos >= end) {
+				e++;
+				pos = addr[e];
+				end = pos + len[e];
+			}
+		}
+		if (left > AES_BLOCK_SIZE)
+			crypto_cipher_encrypt_one(tfm, cbc, cbc);
+		left -= AES_BLOCK_SIZE;
+	}
+
+	memset(pad, 0, AES_BLOCK_SIZE);
+	crypto_cipher_encrypt_one(tfm, pad, pad);
+	gf_mulx(pad);
+
+	if (left || total_len == 0) {
+		for (i = 0; i < left; i++) {
+			cbc[i] ^= *pos++;
+			if (pos >= end) {
+				e++;
+				pos = addr[e];
+				end = pos + len[e];
+			}
+		}
+		cbc[left] ^= 0x80;
+		gf_mulx(pad);
+	}
+
+	for (i = 0; i < AES_BLOCK_SIZE; i++)
+		pad[i] ^= cbc[i];
+	crypto_cipher_encrypt_one(tfm, pad, pad);
+	memcpy(mac, pad, CMAC_TLEN);
+}
+
+
+void ieee80211_aes_cmac(struct crypto_cipher *tfm, u8 *scratch, const u8 *aad,
+			const u8 *data, size_t data_len, u8 *mic)
+{
+	const u8 *addr[3];
+	size_t len[3];
+	u8 zero[CMAC_TLEN];
+
+	memset(zero, 0, CMAC_TLEN);
+	addr[0] = aad;
+	len[0] = AAD_LEN;
+	addr[1] = data;
+	len[1] = data_len - CMAC_TLEN;
+	addr[2] = zero;
+	len[2] = CMAC_TLEN;
+
+	aes_128_cmac_vector(tfm, scratch, 3, addr, len, mic);
+}
+
+
+struct crypto_cipher * ieee80211_aes_cmac_key_setup(const u8 key[])
+{
+	struct crypto_cipher *tfm;
+
+	tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(tfm))
+		return NULL;
+
+	crypto_cipher_setkey(tfm, key, AES_CMAC_KEY_LEN);
+
+	return tfm;
+}
+
+
+void ieee80211_aes_cmac_key_free(struct crypto_cipher *tfm)
+{
+	if (tfm)
+		crypto_free_cipher(tfm);
+}
diff --git a/net/mac80211/aes_cmac.h b/net/mac80211/aes_cmac.h
new file mode 100644
index 000000000000..0eb9a4831508
--- /dev/null
+++ b/net/mac80211/aes_cmac.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2008, Jouni Malinen <j@w1.fi>
+ *
+ * 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.
+ */
+
+#ifndef AES_CMAC_H
+#define AES_CMAC_H
+
+#include <linux/crypto.h>
+
+struct crypto_cipher * ieee80211_aes_cmac_key_setup(const u8 key[]);
+void ieee80211_aes_cmac(struct crypto_cipher *tfm, u8 *scratch, const u8 *aad,
+			const u8 *data, size_t data_len, u8 *mic);
+void ieee80211_aes_cmac_key_free(struct crypto_cipher *tfm);
+
+#endif /* AES_CMAC_H */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b5f86cb17630..20af92abd61d 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -43,7 +43,7 @@ struct ieee80211_local;
 
 /* Required encryption head and tailroom */
 #define IEEE80211_ENCRYPT_HEADROOM 8
-#define IEEE80211_ENCRYPT_TAILROOM 12
+#define IEEE80211_ENCRYPT_TAILROOM 18
 
 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
  * reception of at least three fragmented frames. This limit can be increased
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index 425816e0996c..73ac28ca2ede 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -96,6 +96,16 @@ struct ieee80211_key {
 			u8 tx_crypto_buf[6 * AES_BLOCK_LEN];
 			u8 rx_crypto_buf[6 * AES_BLOCK_LEN];
 		} ccmp;
+		struct {
+			u8 tx_pn[6];
+			u8 rx_pn[6];
+			struct crypto_cipher *tfm;
+			u32 replays; /* dot11RSNAStatsCMACReplays */
+			u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
+			/* scratch buffers for virt_to_page() (crypto API) */
+			u8 tx_crypto_buf[2 * AES_BLOCK_LEN];
+			u8 rx_crypto_buf[2 * AES_BLOCK_LEN];
+		} aes_cmac;
 	} u;
 
 	/* number of times this key has been used */
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index aff46adde3f0..53e11e6ff66e 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -1,5 +1,6 @@
 /*
  * Copyright 2002-2004, Instant802 Networks, Inc.
+ * Copyright 2008, Jouni Malinen <j@w1.fi>
  *
  * 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
@@ -19,6 +20,7 @@
 #include "michael.h"
 #include "tkip.h"
 #include "aes_ccm.h"
+#include "aes_cmac.h"
 #include "wpa.h"
 
 ieee80211_tx_result
@@ -491,3 +493,126 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 
 	return RX_CONTINUE;
 }
+
+
+static void bip_aad(struct sk_buff *skb, u8 *aad)
+{
+	/* BIP AAD: FC(masked) || A1 || A2 || A3 */
+
+	/* FC type/subtype */
+	aad[0] = skb->data[0];
+	/* Mask FC Retry, PwrMgt, MoreData flags to zero */
+	aad[1] = skb->data[1] & ~(BIT(4) | BIT(5) | BIT(6));
+	/* A1 || A2 || A3 */
+	memcpy(aad + 2, skb->data + 4, 3 * ETH_ALEN);
+}
+
+
+static inline void bip_ipn_swap(u8 *d, const u8 *s)
+{
+	*d++ = s[5];
+	*d++ = s[4];
+	*d++ = s[3];
+	*d++ = s[2];
+	*d++ = s[1];
+	*d = s[0];
+}
+
+
+ieee80211_tx_result
+ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx)
+{
+	struct sk_buff *skb = tx->skb;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_key *key = tx->key;
+	struct ieee80211_mmie *mmie;
+	u8 *pn, aad[20];
+	int i;
+
+	if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
+		/* hwaccel */
+		info->control.hw_key = &tx->key->conf;
+		return 0;
+	}
+
+	if (WARN_ON(skb_tailroom(skb) < sizeof(*mmie)))
+		return TX_DROP;
+
+	mmie = (struct ieee80211_mmie *) skb_put(skb, sizeof(*mmie));
+	mmie->element_id = WLAN_EID_MMIE;
+	mmie->length = sizeof(*mmie) - 2;
+	mmie->key_id = cpu_to_le16(key->conf.keyidx);
+
+	/* PN = PN + 1 */
+	pn = key->u.aes_cmac.tx_pn;
+
+	for (i = sizeof(key->u.aes_cmac.tx_pn) - 1; i >= 0; i--) {
+		pn[i]++;
+		if (pn[i])
+			break;
+	}
+	bip_ipn_swap(mmie->sequence_number, pn);
+
+	bip_aad(skb, aad);
+
+	/*
+	 * MIC = AES-128-CMAC(IGTK, AAD || Management Frame Body || MMIE, 64)
+	 */
+	ieee80211_aes_cmac(key->u.aes_cmac.tfm, key->u.aes_cmac.tx_crypto_buf,
+			   aad, skb->data + 24, skb->len - 24, mmie->mic);
+
+	return TX_CONTINUE;
+}
+
+
+ieee80211_rx_result
+ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx)
+{
+	struct sk_buff *skb = rx->skb;
+	struct ieee80211_key *key = rx->key;
+	struct ieee80211_mmie *mmie;
+	u8 aad[20], mic[8], ipn[6];
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+
+	if (!ieee80211_is_mgmt(hdr->frame_control))
+		return RX_CONTINUE;
+
+	if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
+	    (rx->status->flag & RX_FLAG_IV_STRIPPED))
+		return RX_CONTINUE;
+
+	if (skb->len < 24 + sizeof(*mmie))
+		return RX_DROP_UNUSABLE;
+
+	mmie = (struct ieee80211_mmie *)
+		(skb->data + skb->len - sizeof(*mmie));
+	if (mmie->element_id != WLAN_EID_MMIE ||
+	    mmie->length != sizeof(*mmie) - 2)
+		return RX_DROP_UNUSABLE; /* Invalid MMIE */
+
+	bip_ipn_swap(ipn, mmie->sequence_number);
+
+	if (memcmp(ipn, key->u.aes_cmac.rx_pn, 6) <= 0) {
+		key->u.aes_cmac.replays++;
+		return RX_DROP_UNUSABLE;
+	}
+
+	if (!(rx->status->flag & RX_FLAG_DECRYPTED)) {
+		/* hardware didn't decrypt/verify MIC */
+		bip_aad(skb, aad);
+		ieee80211_aes_cmac(key->u.aes_cmac.tfm,
+				   key->u.aes_cmac.rx_crypto_buf, aad,
+				   skb->data + 24, skb->len - 24, mic);
+		if (memcmp(mic, mmie->mic, sizeof(mmie->mic)) != 0) {
+			key->u.aes_cmac.icverrors++;
+			return RX_DROP_UNUSABLE;
+		}
+	}
+
+	memcpy(key->u.aes_cmac.rx_pn, ipn, 6);
+
+	/* Remove MMIE */
+	skb_trim(skb, skb->len - sizeof(*mmie));
+
+	return RX_CONTINUE;
+}
diff --git a/net/mac80211/wpa.h b/net/mac80211/wpa.h
index d42d221d8a1d..baba0608313e 100644
--- a/net/mac80211/wpa.h
+++ b/net/mac80211/wpa.h
@@ -28,4 +28,9 @@ ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx);
 ieee80211_rx_result
 ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx);
 
+ieee80211_tx_result
+ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx);
+ieee80211_rx_result
+ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx);
+
 #endif /* WPA_H */
-- 
cgit v1.2.3


From 3cfcf6ac6d69dc290e96416731eea5c88ac7d426 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:02 +0200
Subject: mac80211: 802.11w - Use BIP (AES-128-CMAC)

Add mechanism for managing BIP keys (IGTK) and integrate BIP into the
TX/RX paths.

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath5k/pcu.c |  3 ++
 include/linux/ieee80211.h        |  1 +
 include/linux/nl80211.h          |  6 ++-
 include/net/cfg80211.h           |  5 +++
 include/net/mac80211.h           |  2 +
 net/mac80211/cfg.c               | 31 ++++++++++++++
 net/mac80211/debugfs_key.c       | 79 ++++++++++++++++++++++++++++++++++-
 net/mac80211/debugfs_key.h       | 10 +++++
 net/mac80211/ieee80211_i.h       |  5 ++-
 net/mac80211/key.c               | 62 ++++++++++++++++++++++++++-
 net/mac80211/key.h               |  6 +++
 net/mac80211/rx.c                | 90 ++++++++++++++++++++++++++++++++++++----
 net/mac80211/tx.c                |  9 ++++
 net/wireless/nl80211.c           | 29 +++++++++----
 14 files changed, 317 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath5k/pcu.c b/drivers/net/wireless/ath5k/pcu.c
index 5b416ed65299..e758b70ab7eb 100644
--- a/drivers/net/wireless/ath5k/pcu.c
+++ b/drivers/net/wireless/ath5k/pcu.c
@@ -1026,6 +1026,9 @@ int ath5k_keycache_type(const struct ieee80211_key_conf *key)
 			return AR5K_KEYTABLE_TYPE_40;
 		else if (key->keylen == LEN_WEP104)
 			return AR5K_KEYTABLE_TYPE_104;
+		return -EINVAL;
+	default:
+		return -EINVAL;
 	}
 	return -EINVAL;
 }
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index cceb9e86c744..df98a8a549a2 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1139,6 +1139,7 @@ enum ieee80211_back_parties {
 /* reserved: 				0x000FAC03 */
 #define WLAN_CIPHER_SUITE_CCMP		0x000FAC04
 #define WLAN_CIPHER_SUITE_WEP104	0x000FAC05
+#define WLAN_CIPHER_SUITE_AES_CMAC	0x000FAC06
 
 #define WLAN_MAX_KEY_LEN		32
 
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 218f0e73a7ae..ee742bc9761e 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -72,8 +72,8 @@
  *
  * @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified
  *	by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC.
- * @NL80211_CMD_SET_KEY: Set key attributes %NL80211_ATTR_KEY_DEFAULT or
- *	%NL80211_ATTR_KEY_THRESHOLD.
+ * @NL80211_CMD_SET_KEY: Set key attributes %NL80211_ATTR_KEY_DEFAULT,
+ *	%NL80211_ATTR_KEY_DEFAULT_MGMT, or %NL80211_ATTR_KEY_THRESHOLD.
  * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
  *	%NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC and %NL80211_ATTR_KEY_CIPHER
  *	attributes.
@@ -346,6 +346,8 @@ enum nl80211_attrs {
 	NL80211_ATTR_WIPHY_FREQ,
 	NL80211_ATTR_WIPHY_CHANNEL_TYPE,
 
+	NL80211_ATTR_KEY_DEFAULT_MGMT,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 6619ed106134..df78abc496f1 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -473,6 +473,8 @@ struct ieee80211_channel;
  *
  * @set_default_key: set the default key on an interface
  *
+ * @set_default_mgmt_key: set the default management frame key on an interface
+ *
  * @add_beacon: Add a beacon with given parameters, @head, @interval
  *	and @dtim_period will be valid, @tail is optional.
  * @set_beacon: Change the beacon parameters for an access point mode
@@ -520,6 +522,9 @@ struct cfg80211_ops {
 	int	(*set_default_key)(struct wiphy *wiphy,
 				   struct net_device *netdev,
 				   u8 key_index);
+	int	(*set_default_mgmt_key)(struct wiphy *wiphy,
+					struct net_device *netdev,
+					u8 key_index);
 
 	int	(*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
 			      struct beacon_parameters *info);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 8a305bfdb87b..61f1f37a9e27 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -651,11 +651,13 @@ struct ieee80211_if_conf {
  * @ALG_WEP: WEP40 or WEP104
  * @ALG_TKIP: TKIP
  * @ALG_CCMP: CCMP (AES)
+ * @ALG_AES_CMAC: AES-128-CMAC
  */
 enum ieee80211_key_alg {
 	ALG_WEP,
 	ALG_TKIP,
 	ALG_CCMP,
+	ALG_AES_CMAC,
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 309d9189aa49..72c106915433 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -133,6 +133,9 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 	case WLAN_CIPHER_SUITE_CCMP:
 		alg = ALG_CCMP;
 		break;
+	case WLAN_CIPHER_SUITE_AES_CMAC:
+		alg = ALG_AES_CMAC;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -275,6 +278,17 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 		else
 			params.cipher = WLAN_CIPHER_SUITE_WEP104;
 		break;
+	case ALG_AES_CMAC:
+		params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
+		seq[0] = key->u.aes_cmac.tx_pn[5];
+		seq[1] = key->u.aes_cmac.tx_pn[4];
+		seq[2] = key->u.aes_cmac.tx_pn[3];
+		seq[3] = key->u.aes_cmac.tx_pn[2];
+		seq[4] = key->u.aes_cmac.tx_pn[1];
+		seq[5] = key->u.aes_cmac.tx_pn[0];
+		params.seq = seq;
+		params.seq_len = 6;
+		break;
 	}
 
 	params.key = key->conf.key;
@@ -304,6 +318,22 @@ static int ieee80211_config_default_key(struct wiphy *wiphy,
 	return 0;
 }
 
+static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
+					     struct net_device *dev,
+					     u8 key_idx)
+{
+	struct ieee80211_sub_if_data *sdata;
+
+	rcu_read_lock();
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	ieee80211_set_default_mgmt_key(sdata, key_idx);
+
+	rcu_read_unlock();
+
+	return 0;
+}
+
 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
@@ -1153,6 +1183,7 @@ struct cfg80211_ops mac80211_config_ops = {
 	.del_key = ieee80211_del_key,
 	.get_key = ieee80211_get_key,
 	.set_default_key = ieee80211_config_default_key,
+	.set_default_mgmt_key = ieee80211_config_default_mgmt_key,
 	.add_beacon = ieee80211_add_beacon,
 	.set_beacon = ieee80211_set_beacon,
 	.del_beacon = ieee80211_del_beacon,
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index 6424ac565ae0..99c752588b30 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -76,6 +76,9 @@ static ssize_t key_algorithm_read(struct file *file,
 	case ALG_CCMP:
 		alg = "CCMP\n";
 		break;
+	case ALG_AES_CMAC:
+		alg = "AES-128-CMAC\n";
+		break;
 	default:
 		return 0;
 	}
@@ -105,6 +108,12 @@ static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
 		len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
 				tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
 		break;
+	case ALG_AES_CMAC:
+		tpn = key->u.aes_cmac.tx_pn;
+		len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
+				tpn[0], tpn[1], tpn[2], tpn[3], tpn[4],
+				tpn[5]);
+		break;
 	default:
 		return 0;
 	}
@@ -142,6 +151,14 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
 		}
 		len = p - buf;
 		break;
+	case ALG_AES_CMAC:
+		rpn = key->u.aes_cmac.rx_pn;
+		p += scnprintf(p, sizeof(buf)+buf-p,
+			       "%02x%02x%02x%02x%02x%02x\n",
+			       rpn[0], rpn[1], rpn[2],
+			       rpn[3], rpn[4], rpn[5]);
+		len = p - buf;
+		break;
 	default:
 		return 0;
 	}
@@ -156,13 +173,40 @@ static ssize_t key_replays_read(struct file *file, char __user *userbuf,
 	char buf[20];
 	int len;
 
-	if (key->conf.alg != ALG_CCMP)
+	switch (key->conf.alg) {
+	case ALG_CCMP:
+		len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
+		break;
+	case ALG_AES_CMAC:
+		len = scnprintf(buf, sizeof(buf), "%u\n",
+				key->u.aes_cmac.replays);
+		break;
+	default:
 		return 0;
-	len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
+	}
 	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
 }
 KEY_OPS(replays);
 
+static ssize_t key_icverrors_read(struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	struct ieee80211_key *key = file->private_data;
+	char buf[20];
+	int len;
+
+	switch (key->conf.alg) {
+	case ALG_AES_CMAC:
+		len = scnprintf(buf, sizeof(buf), "%u\n",
+				key->u.aes_cmac.icverrors);
+		break;
+	default:
+		return 0;
+	}
+	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+KEY_OPS(icverrors);
+
 static ssize_t key_key_read(struct file *file, char __user *userbuf,
 			    size_t count, loff_t *ppos)
 {
@@ -222,6 +266,7 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key)
 	DEBUGFS_ADD(tx_spec);
 	DEBUGFS_ADD(rx_spec);
 	DEBUGFS_ADD(replays);
+	DEBUGFS_ADD(icverrors);
 	DEBUGFS_ADD(key);
 	DEBUGFS_ADD(ifindex);
 };
@@ -243,6 +288,7 @@ void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
 	DEBUGFS_DEL(tx_spec);
 	DEBUGFS_DEL(rx_spec);
 	DEBUGFS_DEL(replays);
+	DEBUGFS_DEL(icverrors);
 	DEBUGFS_DEL(key);
 	DEBUGFS_DEL(ifindex);
 
@@ -280,6 +326,35 @@ void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
 	sdata->common_debugfs.default_key = NULL;
 }
 
+void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata)
+{
+	char buf[50];
+	struct ieee80211_key *key;
+
+	if (!sdata->debugfsdir)
+		return;
+
+	/* this is running under the key lock */
+
+	key = sdata->default_mgmt_key;
+	if (key) {
+		sprintf(buf, "../keys/%d", key->debugfs.cnt);
+		sdata->common_debugfs.default_mgmt_key =
+			debugfs_create_symlink("default_mgmt_key",
+					       sdata->debugfsdir, buf);
+	} else
+		ieee80211_debugfs_key_remove_mgmt_default(sdata);
+}
+
+void ieee80211_debugfs_key_remove_mgmt_default(struct ieee80211_sub_if_data *sdata)
+{
+	if (!sdata)
+		return;
+
+	debugfs_remove(sdata->common_debugfs.default_mgmt_key);
+	sdata->common_debugfs.default_mgmt_key = NULL;
+}
+
 void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
 				   struct sta_info *sta)
 {
diff --git a/net/mac80211/debugfs_key.h b/net/mac80211/debugfs_key.h
index b1a3754ee240..54717b4e1371 100644
--- a/net/mac80211/debugfs_key.h
+++ b/net/mac80211/debugfs_key.h
@@ -6,6 +6,10 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key);
 void ieee80211_debugfs_key_remove(struct ieee80211_key *key);
 void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata);
 void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_key_add_mgmt_default(
+	struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_key_remove_mgmt_default(
+	struct ieee80211_sub_if_data *sdata);
 void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
 				   struct sta_info *sta);
 #else
@@ -19,6 +23,12 @@ static inline void ieee80211_debugfs_key_add_default(
 static inline void ieee80211_debugfs_key_remove_default(
 	struct ieee80211_sub_if_data *sdata)
 {}
+static inline void ieee80211_debugfs_key_add_mgmt_default(
+	struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_key_remove_mgmt_default(
+	struct ieee80211_sub_if_data *sdata)
+{}
 static inline void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
 						 struct sta_info *sta)
 {}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 20af92abd61d..8c3245717c55 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -409,8 +409,10 @@ struct ieee80211_sub_if_data {
 	unsigned int fragment_next;
 
 #define NUM_DEFAULT_KEYS 4
-	struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
+#define NUM_DEFAULT_MGMT_KEYS 2
+	struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
 	struct ieee80211_key *default_key;
+	struct ieee80211_key *default_mgmt_key;
 
 	u16 sequence_number;
 
@@ -482,6 +484,7 @@ struct ieee80211_sub_if_data {
 	} debugfs;
 	struct {
 		struct dentry *default_key;
+		struct dentry *default_mgmt_key;
 	} common_debugfs;
 
 #ifdef CONFIG_MAC80211_MESH
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index b0a025c9b615..19b480de4bbc 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -18,6 +18,7 @@
 #include "ieee80211_i.h"
 #include "debugfs_key.h"
 #include "aes_ccm.h"
+#include "aes_cmac.h"
 
 
 /**
@@ -215,13 +216,38 @@ void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx)
 	spin_unlock_irqrestore(&sdata->local->key_lock, flags);
 }
 
+static void
+__ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata, int idx)
+{
+	struct ieee80211_key *key = NULL;
+
+	if (idx >= NUM_DEFAULT_KEYS &&
+	    idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
+		key = sdata->keys[idx];
+
+	rcu_assign_pointer(sdata->default_mgmt_key, key);
+
+	if (key)
+		add_todo(key, KEY_FLAG_TODO_DEFMGMTKEY);
+}
+
+void ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata,
+				    int idx)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sdata->local->key_lock, flags);
+	__ieee80211_set_default_mgmt_key(sdata, idx);
+	spin_unlock_irqrestore(&sdata->local->key_lock, flags);
+}
+
 
 static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
 				    struct sta_info *sta,
 				    struct ieee80211_key *old,
 				    struct ieee80211_key *new)
 {
-	int idx, defkey;
+	int idx, defkey, defmgmtkey;
 
 	if (new)
 		list_add(&new->list, &sdata->key_list);
@@ -237,13 +263,19 @@ static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
 			idx = new->conf.keyidx;
 
 		defkey = old && sdata->default_key == old;
+		defmgmtkey = old && sdata->default_mgmt_key == old;
 
 		if (defkey && !new)
 			__ieee80211_set_default_key(sdata, -1);
+		if (defmgmtkey && !new)
+			__ieee80211_set_default_mgmt_key(sdata, -1);
 
 		rcu_assign_pointer(sdata->keys[idx], new);
 		if (defkey && new)
 			__ieee80211_set_default_key(sdata, new->conf.keyidx);
+		if (defmgmtkey && new)
+			__ieee80211_set_default_mgmt_key(sdata,
+							 new->conf.keyidx);
 	}
 
 	if (old) {
@@ -262,7 +294,7 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 {
 	struct ieee80211_key *key;
 
-	BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS);
+	BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS);
 
 	key = kzalloc(sizeof(struct ieee80211_key) + key_len, GFP_KERNEL);
 	if (!key)
@@ -291,6 +323,10 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 		key->conf.iv_len = CCMP_HDR_LEN;
 		key->conf.icv_len = CCMP_MIC_LEN;
 		break;
+	case ALG_AES_CMAC:
+		key->conf.iv_len = 0;
+		key->conf.icv_len = sizeof(struct ieee80211_mmie);
+		break;
 	}
 	memcpy(key->conf.key, key_data, key_len);
 	INIT_LIST_HEAD(&key->list);
@@ -308,6 +344,19 @@ struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 		}
 	}
 
+	if (alg == ALG_AES_CMAC) {
+		/*
+		 * Initialize AES key state here as an optimization so that
+		 * it does not need to be initialized for every packet.
+		 */
+		key->u.aes_cmac.tfm =
+			ieee80211_aes_cmac_key_setup(key_data);
+		if (!key->u.aes_cmac.tfm) {
+			kfree(key);
+			return NULL;
+		}
+	}
+
 	return key;
 }
 
@@ -461,6 +510,8 @@ static void __ieee80211_key_destroy(struct ieee80211_key *key)
 
 	if (key->conf.alg == ALG_CCMP)
 		ieee80211_aes_key_free(key->u.ccmp.tfm);
+	if (key->conf.alg == ALG_AES_CMAC)
+		ieee80211_aes_cmac_key_free(key->u.aes_cmac.tfm);
 	ieee80211_debugfs_key_remove(key);
 
 	kfree(key);
@@ -483,6 +534,7 @@ static void __ieee80211_key_todo(void)
 		list_del_init(&key->todo);
 		todoflags = key->flags & (KEY_FLAG_TODO_ADD_DEBUGFS |
 					  KEY_FLAG_TODO_DEFKEY |
+					  KEY_FLAG_TODO_DEFMGMTKEY |
 					  KEY_FLAG_TODO_HWACCEL_ADD |
 					  KEY_FLAG_TODO_HWACCEL_REMOVE |
 					  KEY_FLAG_TODO_DELETE);
@@ -500,6 +552,11 @@ static void __ieee80211_key_todo(void)
 			ieee80211_debugfs_key_add_default(key->sdata);
 			work_done = true;
 		}
+		if (todoflags & KEY_FLAG_TODO_DEFMGMTKEY) {
+			ieee80211_debugfs_key_remove_mgmt_default(key->sdata);
+			ieee80211_debugfs_key_add_mgmt_default(key->sdata);
+			work_done = true;
+		}
 		if (todoflags & KEY_FLAG_TODO_HWACCEL_ADD) {
 			ieee80211_key_enable_hw_accel(key);
 			work_done = true;
@@ -535,6 +592,7 @@ void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
 	ieee80211_key_lock();
 
 	ieee80211_debugfs_key_remove_default(sdata);
+	ieee80211_debugfs_key_remove_mgmt_default(sdata);
 
 	spin_lock_irqsave(&sdata->local->key_lock, flags);
 	list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index 73ac28ca2ede..215d3ef42a4f 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -46,6 +46,8 @@ struct sta_info;
  *	acceleration.
  * @KEY_FLAG_TODO_DEFKEY: Key is default key and debugfs needs to be updated.
  * @KEY_FLAG_TODO_ADD_DEBUGFS: Key needs to be added to debugfs.
+ * @KEY_FLAG_TODO_DEFMGMTKEY: Key is default management key and debugfs needs
+ *	to be updated.
  */
 enum ieee80211_internal_key_flags {
 	KEY_FLAG_UPLOADED_TO_HARDWARE	= BIT(0),
@@ -54,6 +56,7 @@ enum ieee80211_internal_key_flags {
 	KEY_FLAG_TODO_HWACCEL_REMOVE	= BIT(3),
 	KEY_FLAG_TODO_DEFKEY		= BIT(4),
 	KEY_FLAG_TODO_ADD_DEBUGFS	= BIT(5),
+	KEY_FLAG_TODO_DEFMGMTKEY	= BIT(6),
 };
 
 struct tkip_ctx {
@@ -124,6 +127,7 @@ struct ieee80211_key {
 		struct dentry *tx_spec;
 		struct dentry *rx_spec;
 		struct dentry *replays;
+		struct dentry *icverrors;
 		struct dentry *key;
 		struct dentry *ifindex;
 		int cnt;
@@ -150,6 +154,8 @@ void ieee80211_key_link(struct ieee80211_key *key,
 			struct sta_info *sta);
 void ieee80211_key_free(struct ieee80211_key *key);
 void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx);
+void ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata,
+				    int idx);
 void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata);
 void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata);
 void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index b68e082e99ce..abc3aa583ca6 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -446,6 +446,52 @@ ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx)
 	return RX_CONTINUE;
 }
 
+
+static int ieee80211_is_unicast_robust_mgmt_frame(struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+
+	if (skb->len < 24 || is_multicast_ether_addr(hdr->addr1))
+		return 0;
+
+	return ieee80211_is_robust_mgmt_frame(hdr);
+}
+
+
+static int ieee80211_is_multicast_robust_mgmt_frame(struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+
+	if (skb->len < 24 || !is_multicast_ether_addr(hdr->addr1))
+		return 0;
+
+	return ieee80211_is_robust_mgmt_frame(hdr);
+}
+
+
+/* Get the BIP key index from MMIE; return -1 if this is not a BIP frame */
+static int ieee80211_get_mmie_keyidx(struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *hdr = (struct ieee80211_mgmt *) skb->data;
+	struct ieee80211_mmie *mmie;
+
+	if (skb->len < 24 + sizeof(*mmie) ||
+	    !is_multicast_ether_addr(hdr->da))
+		return -1;
+
+	if (!ieee80211_is_robust_mgmt_frame((struct ieee80211_hdr *) hdr))
+		return -1; /* not a robust management frame */
+
+	mmie = (struct ieee80211_mmie *)
+		(skb->data + skb->len - sizeof(*mmie));
+	if (mmie->element_id != WLAN_EID_MMIE ||
+	    mmie->length != sizeof(*mmie) - 2)
+		return -1;
+
+	return le16_to_cpu(mmie->key_id);
+}
+
+
 static ieee80211_rx_result
 ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
 {
@@ -561,21 +607,23 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 	int hdrlen;
 	ieee80211_rx_result result = RX_DROP_UNUSABLE;
 	struct ieee80211_key *stakey = NULL;
+	int mmie_keyidx = -1;
 
 	/*
 	 * Key selection 101
 	 *
-	 * There are three types of keys:
+	 * There are four types of keys:
 	 *  - GTK (group keys)
+	 *  - IGTK (group keys for management frames)
 	 *  - PTK (pairwise keys)
 	 *  - STK (station-to-station pairwise keys)
 	 *
 	 * When selecting a key, we have to distinguish between multicast
 	 * (including broadcast) and unicast frames, the latter can only
-	 * use PTKs and STKs while the former always use GTKs. Unless, of
-	 * course, actual WEP keys ("pre-RSNA") are used, then unicast
-	 * frames can also use key indizes like GTKs. Hence, if we don't
-	 * have a PTK/STK we check the key index for a WEP key.
+	 * use PTKs and STKs while the former always use GTKs and IGTKs.
+	 * Unless, of course, actual WEP keys ("pre-RSNA") are used, then
+	 * unicast frames can also use key indices like GTKs. Hence, if we
+	 * don't have a PTK/STK we check the key index for a WEP key.
 	 *
 	 * Note that in a regular BSS, multicast frames are sent by the
 	 * AP only, associated stations unicast the frame to the AP first
@@ -588,8 +636,14 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 	 * possible.
 	 */
 
-	if (!ieee80211_has_protected(hdr->frame_control))
-		return RX_CONTINUE;
+	if (!ieee80211_has_protected(hdr->frame_control)) {
+		if (!ieee80211_is_mgmt(hdr->frame_control) ||
+		    rx->sta == NULL || !test_sta_flags(rx->sta, WLAN_STA_MFP))
+			return RX_CONTINUE;
+		mmie_keyidx = ieee80211_get_mmie_keyidx(rx->skb);
+		if (mmie_keyidx < 0)
+			return RX_CONTINUE;
+	}
 
 	/*
 	 * No point in finding a key and decrypting if the frame is neither
@@ -603,6 +657,16 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 
 	if (!is_multicast_ether_addr(hdr->addr1) && stakey) {
 		rx->key = stakey;
+	} else if (mmie_keyidx >= 0) {
+		/* Broadcast/multicast robust management frame / BIP */
+		if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
+		    (rx->status->flag & RX_FLAG_IV_STRIPPED))
+			return RX_CONTINUE;
+
+		if (mmie_keyidx < NUM_DEFAULT_KEYS ||
+		    mmie_keyidx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
+			return RX_DROP_MONITOR; /* unexpected BIP keyidx */
+		rx->key = rcu_dereference(rx->sdata->keys[mmie_keyidx]);
 	} else {
 		/*
 		 * The device doesn't give us the IV so we won't be
@@ -665,6 +729,9 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 	case ALG_CCMP:
 		result = ieee80211_crypto_ccmp_decrypt(rx);
 		break;
+	case ALG_AES_CMAC:
+		result = ieee80211_crypto_aes_cmac_decrypt(rx);
+		break;
 	}
 
 	/* either the frame has been decrypted or will be dropped */
@@ -1112,6 +1179,15 @@ ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
 	/* Drop unencrypted frames if key is set. */
 	if (unlikely(!ieee80211_has_protected(fc) &&
 		     !ieee80211_is_nullfunc(fc) &&
+		     (!ieee80211_is_mgmt(fc) ||
+		      (ieee80211_is_unicast_robust_mgmt_frame(rx->skb) &&
+		       rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP))) &&
+		     (rx->key || rx->sdata->drop_unencrypted)))
+		return -EACCES;
+	/* BIP does not use Protected field, so need to check MMIE */
+	if (unlikely(rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP) &&
+		     ieee80211_is_multicast_robust_mgmt_frame(rx->skb) &&
+		     ieee80211_get_mmie_keyidx(rx->skb) < 0 &&
 		     (rx->key || rx->sdata->drop_unencrypted)))
 		return -EACCES;
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 50c6c4fabea5..ad53ea9e9c77 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -425,6 +425,9 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 		tx->key = NULL;
 	else if (tx->sta && (key = rcu_dereference(tx->sta->key)))
 		tx->key = key;
+	else if (ieee80211_is_mgmt(hdr->frame_control) &&
+		 (key = rcu_dereference(tx->sdata->default_mgmt_key)))
+		tx->key = key;
 	else if ((key = rcu_dereference(tx->sdata->default_key)))
 		tx->key = key;
 	else if (tx->sdata->drop_unencrypted &&
@@ -453,6 +456,10 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 					       tx->skb))
 				tx->key = NULL;
 			break;
+		case ALG_AES_CMAC:
+			if (!ieee80211_is_mgmt(hdr->frame_control))
+				tx->key = NULL;
+			break;
 		}
 	}
 
@@ -808,6 +815,8 @@ ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
 		return ieee80211_crypto_tkip_encrypt(tx);
 	case ALG_CCMP:
 		return ieee80211_crypto_ccmp_encrypt(tx);
+	case ALG_AES_CMAC:
+		return ieee80211_crypto_aes_cmac_encrypt(tx);
 	}
 
 	/* not reached */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1e728fff474e..123d3b160fad 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -738,7 +738,7 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
 	if (info->attrs[NL80211_ATTR_KEY_IDX])
 		key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
 
-	if (key_idx > 3)
+	if (key_idx > 5)
 		return -EINVAL;
 
 	if (info->attrs[NL80211_ATTR_MAC])
@@ -804,30 +804,41 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
 	int err;
 	struct net_device *dev;
 	u8 key_idx;
+	int (*func)(struct wiphy *wiphy, struct net_device *netdev,
+		    u8 key_index);
 
 	if (!info->attrs[NL80211_ATTR_KEY_IDX])
 		return -EINVAL;
 
 	key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
 
-	if (key_idx > 3)
+	if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) {
+		if (key_idx < 4 || key_idx > 5)
+			return -EINVAL;
+	} else if (key_idx > 3)
 		return -EINVAL;
 
 	/* currently only support setting default key */
-	if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
+	if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] &&
+	    !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT])
 		return -EINVAL;
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
 	if (err)
 		return err;
 
-	if (!drv->ops->set_default_key) {
+	if (info->attrs[NL80211_ATTR_KEY_DEFAULT])
+		func = drv->ops->set_default_key;
+	else
+		func = drv->ops->set_default_mgmt_key;
+
+	if (!func) {
 		err = -EOPNOTSUPP;
 		goto out;
 	}
 
 	rtnl_lock();
-	err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
+	err = func(&drv->wiphy, dev, key_idx);
 	rtnl_unlock();
 
  out:
@@ -863,7 +874,7 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
 	if (info->attrs[NL80211_ATTR_MAC])
 		mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
 
-	if (key_idx > 3)
+	if (key_idx > 5)
 		return -EINVAL;
 
 	/*
@@ -894,6 +905,10 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
 		if (params.key_len != 13)
 			return -EINVAL;
 		break;
+	case WLAN_CIPHER_SUITE_AES_CMAC:
+		if (params.key_len != 16)
+			return -EINVAL;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -928,7 +943,7 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
 	if (info->attrs[NL80211_ATTR_KEY_IDX])
 		key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
 
-	if (key_idx > 3)
+	if (key_idx > 5)
 		return -EINVAL;
 
 	if (info->attrs[NL80211_ATTR_MAC])
-- 
cgit v1.2.3


From 54604d3a827b37525ef017adba313c7112e0f484 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:03 +0200
Subject: mac80211: 802.11w - WEXT parameter for setting mgmt cipher

Add a new IW_AUTH parameter for setting cipher suite for
multicast/broadcast management frames. This is for full-mac drivers
that take care of RSN IE generation for (re)association request frames.

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/wireless.h | 5 ++++-
 net/mac80211/wext.c      | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/wireless.h b/include/linux/wireless.h
index d7958f9b52cb..d426dce47e7c 100644
--- a/include/linux/wireless.h
+++ b/include/linux/wireless.h
@@ -577,18 +577,21 @@
 #define IW_AUTH_RX_UNENCRYPTED_EAPOL	8
 #define IW_AUTH_ROAMING_CONTROL		9
 #define IW_AUTH_PRIVACY_INVOKED		10
+#define IW_AUTH_CIPHER_GROUP_MGMT	11
 
 /* IW_AUTH_WPA_VERSION values (bit field) */
 #define IW_AUTH_WPA_VERSION_DISABLED	0x00000001
 #define IW_AUTH_WPA_VERSION_WPA		0x00000002
 #define IW_AUTH_WPA_VERSION_WPA2	0x00000004
 
-/* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */
+/* IW_AUTH_PAIRWISE_CIPHER, IW_AUTH_GROUP_CIPHER, and IW_AUTH_CIPHER_GROUP_MGMT
+ * values (bit field) */
 #define IW_AUTH_CIPHER_NONE	0x00000001
 #define IW_AUTH_CIPHER_WEP40	0x00000002
 #define IW_AUTH_CIPHER_TKIP	0x00000004
 #define IW_AUTH_CIPHER_CCMP	0x00000008
 #define IW_AUTH_CIPHER_WEP104	0x00000010
+#define IW_AUTH_CIPHER_AES_CMAC	0x00000020
 
 /* IW_AUTH_KEY_MGMT values (bit field) */
 #define IW_AUTH_KEY_MGMT_802_1X	1
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 1e5b29bdb3a7..c3b2dd5706fb 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -927,6 +927,7 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 	case IW_AUTH_WPA_ENABLED:
 	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
 	case IW_AUTH_KEY_MGMT:
+	case IW_AUTH_CIPHER_GROUP_MGMT:
 		break;
 	case IW_AUTH_CIPHER_PAIRWISE:
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-- 
cgit v1.2.3


From 22787dbaa3b952602542506e0426ea6d5f104042 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:04 +0200
Subject: mac80211: 802.11w - WEXT configuration for IGTK

Added new SIOCSIWENCODEEXT algorithm for configuring BIP (AES-CMAC)
keys (IGTK).

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/wireless.h |  1 +
 net/mac80211/wext.c      | 62 +++++++++++++++++++++++++++++++++++++-----------
 2 files changed, 49 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/include/linux/wireless.h b/include/linux/wireless.h
index d426dce47e7c..5d1f3fbffd77 100644
--- a/include/linux/wireless.h
+++ b/include/linux/wireless.h
@@ -615,6 +615,7 @@
 #define IW_ENCODE_ALG_TKIP	2
 #define IW_ENCODE_ALG_CCMP	3
 #define IW_ENCODE_ALG_PMK	4
+#define IW_ENCODE_ALG_AES_CMAC	5
 /* struct iw_encode_ext ->ext_flags */
 #define IW_ENCODE_EXT_TX_SEQ_VALID	0x00000001
 #define IW_ENCODE_EXT_RX_SEQ_VALID	0x00000002
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index c3b2dd5706fb..7ba1d5ba3afa 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -37,7 +37,14 @@ static int ieee80211_set_encryption(struct ieee80211_sub_if_data *sdata, u8 *sta
 	struct ieee80211_key *key;
 	int err;
 
-	if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
+	if (alg == ALG_AES_CMAC) {
+		if (idx < NUM_DEFAULT_KEYS ||
+		    idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
+			printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d "
+			       "(BIP)\n", sdata->dev->name, idx);
+			return -EINVAL;
+		}
+	} else if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
 		printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
 		       sdata->dev->name, idx);
 		return -EINVAL;
@@ -103,6 +110,9 @@ static int ieee80211_set_encryption(struct ieee80211_sub_if_data *sdata, u8 *sta
 
 		if (set_tx_key || (!sta && !sdata->default_key && key))
 			ieee80211_set_default_key(sdata, idx);
+		if (alg == ALG_AES_CMAC &&
+		    (set_tx_key || (!sta && !sdata->default_mgmt_key && key)))
+			ieee80211_set_default_mgmt_key(sdata, idx);
 	}
 
  out_unlock:
@@ -1048,6 +1058,9 @@ static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
 	case IW_ENCODE_ALG_CCMP:
 		alg = ALG_CCMP;
 		break;
+	case IW_ENCODE_ALG_AES_CMAC:
+		alg = ALG_AES_CMAC;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -1056,20 +1069,41 @@ static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
 		remove = 1;
 
 	idx = erq->flags & IW_ENCODE_INDEX;
-	if (idx < 1 || idx > 4) {
-		idx = -1;
-		if (!sdata->default_key)
-			idx = 0;
-		else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
-			if (sdata->default_key == sdata->keys[i]) {
-				idx = i;
-				break;
+	if (alg == ALG_AES_CMAC) {
+		if (idx < NUM_DEFAULT_KEYS + 1 ||
+		    idx > NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
+			idx = -1;
+			if (!sdata->default_mgmt_key)
+				idx = 0;
+			else for (i = NUM_DEFAULT_KEYS;
+				  i < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS;
+				  i++) {
+				if (sdata->default_mgmt_key == sdata->keys[i])
+				{
+					idx = i;
+					break;
+				}
 			}
-		}
-		if (idx < 0)
-			return -EINVAL;
-	} else
-		idx--;
+			if (idx < 0)
+				return -EINVAL;
+		} else
+			idx--;
+	} else {
+		if (idx < 1 || idx > 4) {
+			idx = -1;
+			if (!sdata->default_key)
+				idx = 0;
+			else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+				if (sdata->default_key == sdata->keys[i]) {
+					idx = i;
+					break;
+				}
+			}
+			if (idx < 0)
+				return -EINVAL;
+		} else
+			idx--;
+	}
 
 	return ieee80211_set_encryption(sdata, ext->addr.sa_data, idx, alg,
 					remove,
-- 
cgit v1.2.3


From fdfacf0ae2e8339098b1164d2317b792d7662c0a Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:05 +0200
Subject: mac80211: 802.11w - Configuration of MFP disabled/optional/required

Add new WEXT IW_AUTH_* parameter for setting MFP
disabled/optional/required.

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/wireless.h   | 6 ++++++
 net/mac80211/ieee80211_i.h | 6 ++++++
 net/mac80211/mlme.c        | 4 ++++
 net/mac80211/wext.c        | 7 +++++++
 4 files changed, 23 insertions(+)

(limited to 'include')

diff --git a/include/linux/wireless.h b/include/linux/wireless.h
index 5d1f3fbffd77..cb24204851f7 100644
--- a/include/linux/wireless.h
+++ b/include/linux/wireless.h
@@ -578,6 +578,7 @@
 #define IW_AUTH_ROAMING_CONTROL		9
 #define IW_AUTH_PRIVACY_INVOKED		10
 #define IW_AUTH_CIPHER_GROUP_MGMT	11
+#define IW_AUTH_MFP			12
 
 /* IW_AUTH_WPA_VERSION values (bit field) */
 #define IW_AUTH_WPA_VERSION_DISABLED	0x00000001
@@ -607,6 +608,11 @@
 #define IW_AUTH_ROAMING_DISABLE	1	/* user space program used for roaming
 					 * control */
 
+/* IW_AUTH_MFP (management frame protection) values */
+#define IW_AUTH_MFP_DISABLED	0	/* MFP disabled */
+#define IW_AUTH_MFP_OPTIONAL	1	/* MFP optional */
+#define IW_AUTH_MFP_REQUIRED	2	/* MFP required */
+
 /* SIOCSIWENCODEEXT definitions */
 #define IW_ENCODE_SEQ_MAX_SIZE	8
 /* struct iw_encode_ext ->alg */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 8c3245717c55..212c732fbba7 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -320,6 +320,12 @@ struct ieee80211_if_sta {
 	int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 	int auth_transaction;
 
+	enum {
+		IEEE80211_MFP_DISABLED,
+		IEEE80211_MFP_OPTIONAL,
+		IEEE80211_MFP_REQUIRED
+	} mfp; /* management frame protection */
+
 	unsigned long ibss_join_req;
 	struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
 	u32 supp_rates_bits[IEEE80211_NUM_BANDS];
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index bc8a7f1a6a15..42c5f981c715 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2317,6 +2317,10 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
 					       selected->ssid_len);
 		ieee80211_sta_set_bssid(sdata, selected->bssid);
 		ieee80211_sta_def_wmm_params(sdata, selected);
+		if (sdata->u.sta.mfp == IEEE80211_MFP_REQUIRED)
+			sdata->u.sta.flags |= IEEE80211_STA_MFP_ENABLED;
+		else
+			sdata->u.sta.flags &= ~IEEE80211_STA_MFP_ENABLED;
 
 		/* Send out direct probe if no probe resp was received or
 		 * the one we have is outdated
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 7ba1d5ba3afa..2dd387495dfe 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -975,6 +975,13 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 		else
 			ret = -EOPNOTSUPP;
 		break;
+	case IW_AUTH_MFP:
+		if (sdata->vif.type == NL80211_IFTYPE_STATION ||
+		    sdata->vif.type == NL80211_IFTYPE_ADHOC)
+			sdata->u.sta.mfp = data->value;
+		else
+			ret = -EOPNOTSUPP;
+		break;
 	default:
 		ret = -EOPNOTSUPP;
 		break;
-- 
cgit v1.2.3


From fea147328908b7e2bfcaf9dc4377909d5507ca35 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:06 +0200
Subject: mac80211: 802.11w - SA Query processing

Process SA Query Requests for client mode in mac80211. AP side
processing of SA Query Response frames is in user space (hostapd).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/ieee80211.h | 14 ++++++++++
 net/mac80211/rx.c         | 69 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+)

(limited to 'include')

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index df98a8a549a2..9fe1948d28d3 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -527,6 +527,8 @@ struct ieee80211_tim_ie {
 	u8 virtual_map[0];
 } __attribute__ ((packed));
 
+#define WLAN_SA_QUERY_TR_ID_LEN 16
+
 struct ieee80211_mgmt {
 	__le16 frame_control;
 	__le16 duration;
@@ -646,6 +648,10 @@ struct ieee80211_mgmt {
 					u8 action_code;
 					u8 variable[0];
 				} __attribute__((packed)) mesh_action;
+				struct {
+					u8 action;
+					u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
+				} __attribute__ ((packed)) sa_query;
 			} u;
 		} __attribute__ ((packed)) action;
 	} u;
@@ -1041,6 +1047,7 @@ enum ieee80211_category {
 	WLAN_CATEGORY_DLS = 2,
 	WLAN_CATEGORY_BACK = 3,
 	WLAN_CATEGORY_PUBLIC = 4,
+	WLAN_CATEGORY_SA_QUERY = 8,
 	WLAN_CATEGORY_WMM = 17,
 };
 
@@ -1129,6 +1136,13 @@ enum ieee80211_back_parties {
 	WLAN_BACK_TIMER = 2,
 };
 
+/* SA Query action */
+enum ieee80211_sa_query_action {
+	WLAN_ACTION_SA_QUERY_REQUEST = 0,
+	WLAN_ACTION_SA_QUERY_RESPONSE = 1,
+};
+
+
 /* A-MSDU 802.11n */
 #define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index abc3aa583ca6..63db89aef3e4 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1667,6 +1667,57 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx)
 	return RX_CONTINUE;
 }
 
+void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,
+				    struct ieee80211_mgmt *mgmt,
+				    size_t len)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *resp;
+
+	if (compare_ether_addr(mgmt->da, sdata->dev->dev_addr) != 0) {
+		/* Not to own unicast address */
+		return;
+	}
+
+	if (compare_ether_addr(mgmt->sa, sdata->u.sta.bssid) != 0 ||
+	    compare_ether_addr(mgmt->bssid, sdata->u.sta.bssid) != 0) {
+		/* Not from the current AP. */
+		return;
+	}
+
+	if (sdata->u.sta.state == IEEE80211_STA_MLME_ASSOCIATE) {
+		/* Association in progress; ignore SA Query */
+		return;
+	}
+
+	if (len < 24 + 1 + sizeof(resp->u.action.u.sa_query)) {
+		/* Too short SA Query request frame */
+		return;
+	}
+
+	skb = dev_alloc_skb(sizeof(*resp) + local->hw.extra_tx_headroom);
+	if (skb == NULL)
+		return;
+
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	resp = (struct ieee80211_mgmt *) skb_put(skb, 24);
+	memset(resp, 0, 24);
+	memcpy(resp->da, mgmt->sa, ETH_ALEN);
+	memcpy(resp->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(resp->bssid, sdata->u.sta.bssid, ETH_ALEN);
+	resp->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+	skb_put(skb, 1 + sizeof(resp->u.action.u.sa_query));
+	resp->u.action.category = WLAN_CATEGORY_SA_QUERY;
+	resp->u.action.u.sa_query.action = WLAN_ACTION_SA_QUERY_RESPONSE;
+	memcpy(resp->u.action.u.sa_query.trans_id,
+	       mgmt->u.action.u.sa_query.trans_id,
+	       WLAN_SA_QUERY_TR_ID_LEN);
+
+	ieee80211_tx_skb(sdata, skb, 1);
+}
+
 static ieee80211_rx_result debug_noinline
 ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 {
@@ -1743,6 +1794,24 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 			break;
 		}
 		break;
+	case WLAN_CATEGORY_SA_QUERY:
+		if (len < (IEEE80211_MIN_ACTION_SIZE +
+			   sizeof(mgmt->u.action.u.sa_query)))
+			return RX_DROP_MONITOR;
+		switch (mgmt->u.action.u.sa_query.action) {
+		case WLAN_ACTION_SA_QUERY_REQUEST:
+			if (sdata->vif.type != NL80211_IFTYPE_STATION)
+				return RX_DROP_MONITOR;
+			ieee80211_process_sa_query_req(sdata, mgmt, len);
+			break;
+		case WLAN_ACTION_SA_QUERY_RESPONSE:
+			/*
+			 * SA Query response is currently only used in AP mode
+			 * and it is processed in user space.
+			 */
+			return RX_CONTINUE;
+		}
+		break;
 	default:
 		return RX_CONTINUE;
 	}
-- 
cgit v1.2.3


From 63a5ab82255a4ff5d0783f16427210f1d45d7ec8 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:09 +0200
Subject: mac80211: 802.11w - Implement Association Comeback processing

When MFP is enabled, the AP does not allow a STA to associate if an
existing security association exists without first going through SA
Query process. When this happens, the association request is denied
with a new status code ("temporarily rejected") ans Association
Comeback IE is used to notify when the association may be tried again
(i.e., when the SA Query procedure has timed out).

Use the comeback time to update the mac80211 client MLME timer for
next association attempt to minimize waiting time if association is
temporarily rejected.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/ieee80211.h  |  4 ++++
 net/mac80211/ieee80211_i.h |  2 ++
 net/mac80211/mlme.c        | 20 +++++++++++++++++---
 net/mac80211/util.c        |  4 ++++
 4 files changed, 27 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 9fe1948d28d3..7800e20f197f 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -914,6 +914,9 @@ enum ieee80211_statuscode {
 	/* 802.11g */
 	WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
 	WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
+	/* 802.11w */
+	WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
+	WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
 	/* 802.11i */
 	WLAN_STATUS_INVALID_IE = 40,
 	WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
@@ -1034,6 +1037,7 @@ enum ieee80211_eid {
 	/* 802.11i */
 	WLAN_EID_RSN = 48,
 	WLAN_EID_MMIE = 76 /* 802.11w */,
+	WLAN_EID_ASSOC_COMEBACK_TIME = 77,
 	WLAN_EID_WPA = 221,
 	WLAN_EID_GENERIC = 221,
 	WLAN_EID_VENDOR_SPECIFIC = 221,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 212c732fbba7..9112c5247c35 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -820,6 +820,7 @@ struct ieee802_11_elems {
 	u8 *country_elem;
 	u8 *pwr_constr_elem;
 	u8 *quiet_elem; 	/* first quite element */
+	u8 *assoc_comeback;
 
 	/* length of them, respectively */
 	u8 ssid_len;
@@ -847,6 +848,7 @@ struct ieee802_11_elems {
 	u8 pwr_constr_elem_len;
 	u8 quiet_elem_len;
 	u8 num_of_quiet_elem;	/* can be more the one */
+	u8 assoc_comeback_len;
 };
 
 static inline struct ieee80211_local *hw_to_local(
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 42c5f981c715..82c598a83687 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1275,6 +1275,23 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	       sdata->dev->name, reassoc ? "Rea" : "A", mgmt->sa,
 	       capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14))));
 
+	pos = mgmt->u.assoc_resp.variable;
+	ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
+
+	if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY &&
+	    elems.assoc_comeback && elems.assoc_comeback_len == 4) {
+		u32 tu, ms;
+		tu = get_unaligned_le32(elems.assoc_comeback);
+		ms = tu * 1024 / 1000;
+		printk(KERN_DEBUG "%s: AP rejected association temporarily; "
+		       "comeback duration %u TU (%u ms)\n",
+		       sdata->dev->name, tu, ms);
+		if (ms > IEEE80211_ASSOC_TIMEOUT)
+			mod_timer(&ifsta->timer,
+				  jiffies + msecs_to_jiffies(ms));
+		return;
+	}
+
 	if (status_code != WLAN_STATUS_SUCCESS) {
 		printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
 		       sdata->dev->name, status_code);
@@ -1290,9 +1307,6 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		       "set\n", sdata->dev->name, aid);
 	aid &= ~(BIT(15) | BIT(14));
 
-	pos = mgmt->u.assoc_resp.variable;
-	ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
-
 	if (!elems.supp_rates) {
 		printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
 		       sdata->dev->name);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 5cd430333f08..963e0473205c 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -653,6 +653,10 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 			elems->pwr_constr_elem = pos;
 			elems->pwr_constr_elem_len = elen;
 			break;
+		case WLAN_EID_ASSOC_COMEBACK_TIME:
+			elems->assoc_comeback = pos;
+			elems->assoc_comeback_len = elen;
+			break;
 		default:
 			break;
 		}
-- 
cgit v1.2.3


From 1f7d77ab69789980dad44e1af7afd3a68cd48276 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:10 +0200
Subject: mac80211: 802.11w - Optional software CCMP for management frames

If driver/firmware/hardware does not support CCMP for management
frames, it can now request mac80211 to take care of encrypting and
decrypting management frames (when MFP is enabled) in software. The
will need to add this new IEEE80211_KEY_FLAG_SW_MGMT flag when a CCMP
key is being configured for TX side and return the undecrypted frames
on RX side without RX_FLAG_DECRYPTED flag to use software CCMP for
management frames (but hardware for data frames).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 4 ++++
 net/mac80211/wpa.c     | 9 +++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 61f1f37a9e27..00a50a38c7f2 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -686,12 +686,16 @@ enum ieee80211_key_len {
  *	generation in software.
  * @IEEE80211_KEY_FLAG_PAIRWISE: Set by mac80211, this flag indicates
  *	that the key is pairwise rather then a shared key.
+ * @IEEE80211_KEY_FLAG_SW_MGMT: This flag should be set by the driver for a
+ *	CCMP key if it requires CCMP encryption of management frames (MFP) to
+ *	be done in software.
  */
 enum ieee80211_key_flags {
 	IEEE80211_KEY_FLAG_WMM_STA	= 1<<0,
 	IEEE80211_KEY_FLAG_GENERATE_IV	= 1<<1,
 	IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2,
 	IEEE80211_KEY_FLAG_PAIRWISE	= 1<<3,
+	IEEE80211_KEY_FLAG_SW_MGMT	= 1<<4,
 };
 
 /**
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 53e11e6ff66e..9101b48ec2ae 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -367,9 +367,14 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	int hdrlen, len, tail;
 	u8 *pos, *pn;
 	int i;
+	bool skip_hw;
+
+	skip_hw = (tx->key->conf.flags & IEEE80211_KEY_FLAG_SW_MGMT) &&
+		ieee80211_is_mgmt(hdr->frame_control);
 
 	if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
-	    !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
+	    !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
+	    !skip_hw) {
 		/* hwaccel - with no need for preallocated room for CCMP
 		 * header or MIC fields */
 		info->control.hw_key = &tx->key->conf;
@@ -404,7 +409,7 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 
 	ccmp_pn2hdr(pos, pn, key->conf.keyidx);
 
-	if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
+	if ((key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) && !skip_hw) {
 		/* hwaccel - with preallocated room for CCMP header */
 		info->control.hw_key = &tx->key->conf;
 		return 0;
-- 
cgit v1.2.3


From 4375d08350e3661d5e8860d33eea084e47ba01cf Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 8 Jan 2009 13:32:11 +0200
Subject: mac80211: 802.11w - Add driver capability flag for MFP

This allows user space to determine whether a driver supports MFP and
behave properly without having to ask user to configure this in
MFP-optional mode.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 4 ++++
 net/mac80211/wext.c    | 4 ++++
 2 files changed, 8 insertions(+)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 00a50a38c7f2..9bca2abbf038 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -865,6 +865,9 @@ enum ieee80211_tkip_key_type {
  *
  * @IEEE80211_HW_SUPPORTS_DYNAMIC_PS:
  *	Hardware has support for dynamic PS.
+ *
+ * @IEEE80211_HW_MFP_CAPABLE:
+ *	Hardware supports management frame protection (MFP, IEEE 802.11w).
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_RX_INCLUDES_FCS			= 1<<1,
@@ -880,6 +883,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_SUPPORTS_PS			= 1<<11,
 	IEEE80211_HW_PS_NULLFUNC_STACK			= 1<<12,
 	IEEE80211_HW_SUPPORTS_DYNAMIC_PS		= 1<<13,
+	IEEE80211_HW_MFP_CAPABLE			= 1<<14,
 };
 
 /**
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 2dd387495dfe..70a29b657b61 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -976,6 +976,10 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 			ret = -EOPNOTSUPP;
 		break;
 	case IW_AUTH_MFP:
+		if (!(sdata->local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) {
+			ret = -EOPNOTSUPP;
+			break;
+		}
 		if (sdata->vif.type == NL80211_IFTYPE_STATION ||
 		    sdata->vif.type == NL80211_IFTYPE_ADHOC)
 			sdata->u.sta.mfp = data->value;
-- 
cgit v1.2.3


From 6dd1bf3118b62a3ce241dc2b7e05e3d4a28c9eb1 Mon Sep 17 00:00:00 2001
From: Bob Copeland <me@bobcopeland.com>
Date: Thu, 8 Jan 2009 21:00:34 -0500
Subject: mac80211: document return codes from ops callbacks

For any callbacks in ieee80211_ops, specify what values the return
codes represent.  While at it, fix a couple of capitalization and
punctuation differences.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Reviewed-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9bca2abbf038..9a5869e9ecfa 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1217,6 +1217,8 @@ enum ieee80211_ampdu_mlme_action {
  *	configuration in the TX control data. This handler should,
  *	preferably, never fail and stop queues appropriately, more
  *	importantly, however, it must never fail for A-MPDU-queues.
+ *	This function should return NETDEV_TX_OK except in very
+ *	limited cases.
  *	Must be implemented and atomic.
  *
  * @start: Called before the first netdevice attached to the hardware
@@ -1257,9 +1259,12 @@ enum ieee80211_ampdu_mlme_action {
  *
  * @config: Handler for configuration requests. IEEE 802.11 code calls this
  *	function to change hardware configuration, e.g., channel.
+ *	This function should never fail but returns a negative error code
+ *	if it does.
  *
  * @config_interface: Handler for configuration requests related to interfaces
  *	(e.g. BSSID changes.)
+ *	Returns a negative error code which will be seen in userspace.
  *
  * @bss_info_changed: Handler for configuration requests related to BSS
  *	parameters that may vary during BSS's lifespan, and may affect low
@@ -1279,6 +1284,7 @@ enum ieee80211_ampdu_mlme_action {
  *	This callback can sleep, and is only called between add_interface
  *	and remove_interface calls, i.e. while the given virtual interface
  *	is enabled.
+ *	Returns a negative error code if the key can't be added.
  *
  * @update_tkip_key: See the section "Hardware crypto acceleration"
  * 	This callback will be called in the context of Rx. Called for drivers
@@ -1290,8 +1296,10 @@ enum ieee80211_ampdu_mlme_action {
  *	bands. When the scan finishes, ieee80211_scan_completed() must be
  *	called; note that it also must be called when the scan cannot finish
  *	because the hardware is turned off! Anything else is a bug!
+ *	Returns a negative error code which will be seen in userspace.
  *
- * @get_stats: return low-level statistics
+ * @get_stats: Return low-level statistics.
+ * 	Returns zero if statistics are available.
  *
  * @get_tkip_seq: If your device implements TKIP encryption in hardware this
  *	callback should be provided to read the TKIP transmit IVs (both IV32
@@ -1305,6 +1313,7 @@ enum ieee80211_ampdu_mlme_action {
  *
  * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
  *	bursting) for a hardware TX queue.
+ *	Returns a negative error code on failure.
  *
  * @get_tx_stats: Get statistics of the current TX queue status. This is used
  *	to get number of currently queued packets (queue length), maximum queue
@@ -1324,13 +1333,15 @@ enum ieee80211_ampdu_mlme_action {
  * @tx_last_beacon: Determine whether the last IBSS beacon was sent by us.
  *	This is needed only for IBSS mode and the result of this function is
  *	used to determine whether to reply to Probe Requests.
+ *	Returns non-zero if this device sent the last beacon.
  *
  * @ampdu_action: Perform a certain A-MPDU action
  * 	The RA/TID combination determines the destination and TID we want
  * 	the ampdu action to be performed for. The action is defined through
  * 	ieee80211_ampdu_mlme_action. Starting sequence number (@ssn)
- * 	is the first frame we expect to perform the action on. notice
+ * 	is the first frame we expect to perform the action on. Notice
  * 	that TX/RX_STOP can pass NULL for this parameter.
+ *	Returns a negative error code on failure.
  */
 struct ieee80211_ops {
 	int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb);
-- 
cgit v1.2.3


From d2b21f191753abd12c4063776cb1a3d635397509 Mon Sep 17 00:00:00 2001
From: Colin McCabe <colin@cozybit.com>
Date: Fri, 9 Jan 2009 14:58:09 -0800
Subject: libertas: if_spi, driver for libertas GSPI devices

Add initial support for libertas devices using a GSPI interface.  This has
been tested with the 8686.

GSPI is intended to be used on embedded systems. Board-specific parameters are
required (see libertas_spi.h).

Thanks to everyone who took a look at the earlier versions of the patch.

Signed-off-by: Colin McCabe <colin@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/Kconfig           |    6 +
 drivers/net/wireless/libertas/Makefile |    2 +
 drivers/net/wireless/libertas/defs.h   |    2 +
 drivers/net/wireless/libertas/if_spi.c | 1203 ++++++++++++++++++++++++++++++++
 drivers/net/wireless/libertas/if_spi.h |  208 ++++++
 include/linux/spi/libertas_spi.h       |   25 +
 6 files changed, 1446 insertions(+)
 create mode 100644 drivers/net/wireless/libertas/if_spi.c
 create mode 100644 drivers/net/wireless/libertas/if_spi.h
 create mode 100644 include/linux/spi/libertas_spi.h

(limited to 'include')

diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index e4f9f747de88..2dddbd012a99 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -151,6 +151,12 @@ config LIBERTAS_SDIO
 	---help---
 	  A driver for Marvell Libertas 8385 and 8686 SDIO devices.
 
+config LIBERTAS_SPI
+	tristate "Marvell Libertas 8686 SPI 802.11b/g cards"
+	depends on LIBERTAS && SPI && GENERIC_GPIO
+	---help---
+	  A driver for Marvell Libertas 8686 SPI devices.
+
 config LIBERTAS_DEBUG
 	bool "Enable full debugging output in the Libertas module."
 	depends on LIBERTAS
diff --git a/drivers/net/wireless/libertas/Makefile b/drivers/net/wireless/libertas/Makefile
index 02080a3682a9..0b6918584503 100644
--- a/drivers/net/wireless/libertas/Makefile
+++ b/drivers/net/wireless/libertas/Makefile
@@ -4,8 +4,10 @@ libertas-objs := main.o wext.o rx.o tx.o cmd.o cmdresp.o scan.o 11d.o	\
 usb8xxx-objs += if_usb.o
 libertas_cs-objs += if_cs.o
 libertas_sdio-objs += if_sdio.o
+libertas_spi-objs += if_spi.o
 
 obj-$(CONFIG_LIBERTAS)     += libertas.o
 obj-$(CONFIG_LIBERTAS_USB) += usb8xxx.o
 obj-$(CONFIG_LIBERTAS_CS)  += libertas_cs.o
 obj-$(CONFIG_LIBERTAS_SDIO) += libertas_sdio.o
+obj-$(CONFIG_LIBERTAS_SPI) += libertas_spi.o
diff --git a/drivers/net/wireless/libertas/defs.h b/drivers/net/wireless/libertas/defs.h
index c364e4c01d1b..6388b05df4fc 100644
--- a/drivers/net/wireless/libertas/defs.h
+++ b/drivers/net/wireless/libertas/defs.h
@@ -41,6 +41,7 @@
 #define LBS_DEB_HEX	0x00200000
 #define LBS_DEB_SDIO	0x00400000
 #define LBS_DEB_SYSFS	0x00800000
+#define LBS_DEB_SPI	0x01000000
 
 extern unsigned int lbs_debug;
 
@@ -84,6 +85,7 @@ do { if ((lbs_debug & (grp)) == (grp)) \
 #define lbs_deb_thread(fmt, args...)    LBS_DEB_LL(LBS_DEB_THREAD, " thread", fmt, ##args)
 #define lbs_deb_sdio(fmt, args...)      LBS_DEB_LL(LBS_DEB_SDIO, " sdio", fmt, ##args)
 #define lbs_deb_sysfs(fmt, args...)     LBS_DEB_LL(LBS_DEB_SYSFS, " sysfs", fmt, ##args)
+#define lbs_deb_spi(fmt, args...)       LBS_DEB_LL(LBS_DEB_SPI, " spi", fmt, ##args)
 
 #define lbs_pr_info(format, args...) \
 	printk(KERN_INFO DRV_NAME": " format, ## args)
diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
new file mode 100644
index 000000000000..7c02ea314fd1
--- /dev/null
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -0,0 +1,1203 @@
+/*
+ *	linux/drivers/net/wireless/libertas/if_spi.c
+ *
+ *	Driver for Marvell SPI WLAN cards.
+ *
+ *	Copyright 2008 Analog Devices Inc.
+ *
+ *	Authors:
+ *	Andrey Yurovsky <andrey@cozybit.com>
+ *	Colin McCabe <colin@cozybit.com>
+ *
+ *	Inspired by if_sdio.c, Copyright 2007-2008 Pierre Ossman
+ *
+ * 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.
+ */
+
+#include <linux/moduleparam.h>
+#include <linux/firmware.h>
+#include <linux/gpio.h>
+#include <linux/jiffies.h>
+#include <linux/kthread.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/spi/libertas_spi.h>
+#include <linux/spi/spi.h>
+
+#include "host.h"
+#include "decl.h"
+#include "defs.h"
+#include "dev.h"
+#include "if_spi.h"
+
+struct if_spi_packet {
+	struct list_head		list;
+	u16				blen;
+	u8				buffer[0] __attribute__((aligned(4)));
+};
+
+struct if_spi_card {
+	struct spi_device		*spi;
+	struct lbs_private		*priv;
+
+	char				helper_fw_name[FIRMWARE_NAME_MAX];
+	char				main_fw_name[FIRMWARE_NAME_MAX];
+
+	/* The card ID and card revision, as reported by the hardware. */
+	u16				card_id;
+	u8				card_rev;
+
+	/* Pin number for our GPIO chip-select. */
+	/* TODO: Once the generic SPI layer has some additional features, we
+	 * should take this out and use the normal chip select here.
+	 * We need support for chip select delays, and not dropping chipselect
+	 * after each word. */
+	int				gpio_cs;
+
+	/* The last time that we initiated an SPU operation */
+	unsigned long			prev_xfer_time;
+
+	int				use_dummy_writes;
+	unsigned long			spu_port_delay;
+	unsigned long			spu_reg_delay;
+
+	/* Handles all SPI communication (except for FW load) */
+	struct task_struct		*spi_thread;
+	int				run_thread;
+
+	/* Used to wake up the spi_thread */
+	struct semaphore		spi_ready;
+	struct semaphore		spi_thread_terminated;
+
+	u8				cmd_buffer[IF_SPI_CMD_BUF_SIZE];
+
+	/* A buffer of incoming packets from libertas core.
+	 * Since we can't sleep in hw_host_to_card, we have to buffer
+	 * them. */
+	struct list_head		cmd_packet_list;
+	struct list_head		data_packet_list;
+
+	/* Protects cmd_packet_list and data_packet_list */
+	spinlock_t			buffer_lock;
+};
+
+static void free_if_spi_card(struct if_spi_card *card)
+{
+	struct list_head *cursor, *next;
+	struct if_spi_packet *packet;
+
+	BUG_ON(card->run_thread);
+	list_for_each_safe(cursor, next, &card->cmd_packet_list) {
+		packet = container_of(cursor, struct if_spi_packet, list);
+		list_del(&packet->list);
+		kfree(packet);
+	}
+	list_for_each_safe(cursor, next, &card->data_packet_list) {
+		packet = container_of(cursor, struct if_spi_packet, list);
+		list_del(&packet->list);
+		kfree(packet);
+	}
+	spi_set_drvdata(card->spi, NULL);
+	kfree(card);
+}
+
+static struct chip_ident chip_id_to_device_name[] = {
+	{ .chip_id = 0x04, .name = 8385 },
+	{ .chip_id = 0x0b, .name = 8686 },
+};
+
+/*
+ * SPI Interface Unit Routines
+ *
+ * The SPU sits between the host and the WLAN module.
+ * All communication with the firmware is through SPU transactions.
+ *
+ * First we have to put a SPU register name on the bus. Then we can
+ * either read from or write to that register.
+ *
+ * For 16-bit transactions, byte order on the bus is big-endian.
+ * We don't have to worry about that here, though.
+ * The translation takes place in the SPI routines.
+ */
+
+static void spu_transaction_init(struct if_spi_card *card)
+{
+	if (!time_after(jiffies, card->prev_xfer_time + 1)) {
+		/* Unfortunately, the SPU requires a delay between successive
+		 * transactions. If our last transaction was more than a jiffy
+		 * ago, we have obviously already delayed enough.
+		 * If not, we have to busy-wait to be on the safe side. */
+		ndelay(400);
+	}
+	gpio_set_value(card->gpio_cs, 0); /* assert CS */
+}
+
+static void spu_transaction_finish(struct if_spi_card *card)
+{
+	gpio_set_value(card->gpio_cs, 1); /* drop CS */
+	card->prev_xfer_time = jiffies;
+}
+
+/* Write out a byte buffer to an SPI register,
+ * using a series of 16-bit transfers. */
+static int spu_write(struct if_spi_card *card, u16 reg, const u8 *buf, int len)
+{
+	int err = 0;
+	u16 reg_out = reg | IF_SPI_WRITE_OPERATION_MASK;
+
+	/* You must give an even number of bytes to the SPU, even if it
+	 * doesn't care about the last one.  */
+	BUG_ON(len & 0x1);
+
+	spu_transaction_init(card);
+
+	/* write SPU register index */
+	err = spi_write(card->spi, (u8 *)&reg_out, sizeof(u16));
+	if (err)
+		goto out;
+
+	err = spi_write(card->spi, buf, len);
+
+out:
+	spu_transaction_finish(card);
+	return err;
+}
+
+static inline int spu_write_u16(struct if_spi_card *card, u16 reg, u16 val)
+{
+	return spu_write(card, reg, (u8 *)&val, sizeof(u16));
+}
+
+static inline int spu_write_u32(struct if_spi_card *card, u16 reg, u32 val)
+{
+	/* The lower 16 bits are written first. */
+	u16 out[2];
+	out[0] = val & 0xffff;
+	out[1] = (val & 0xffff0000) >> 16;
+	return spu_write(card, reg, (u8 *)&out, sizeof(u32));
+}
+
+static inline int spu_reg_is_port_reg(u16 reg)
+{
+	switch (reg) {
+	case IF_SPI_IO_RDWRPORT_REG:
+	case IF_SPI_CMD_RDWRPORT_REG:
+	case IF_SPI_DATA_RDWRPORT_REG:
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static int spu_read(struct if_spi_card *card, u16 reg, u8 *buf, int len)
+{
+	unsigned int i, delay;
+	int err = 0;
+	u16 zero = 0;
+	u16 reg_out = reg | IF_SPI_READ_OPERATION_MASK;
+
+	/* You must take an even number of bytes from the SPU, even if you
+	 * don't care about the last one.  */
+	BUG_ON(len & 0x1);
+
+	spu_transaction_init(card);
+
+	/* write SPU register index */
+	err = spi_write(card->spi, (u8 *)&reg_out, sizeof(u16));
+	if (err)
+		goto out;
+
+	delay = spu_reg_is_port_reg(reg) ? card->spu_port_delay :
+						card->spu_reg_delay;
+	if (card->use_dummy_writes) {
+		/* Clock in dummy cycles while the SPU fills the FIFO */
+		for (i = 0; i < delay / 16; ++i) {
+			err = spi_write(card->spi, (u8 *)&zero, sizeof(u16));
+			if (err)
+				return err;
+		}
+	} else {
+		/* Busy-wait while the SPU fills the FIFO */
+		ndelay(100 + (delay * 10));
+	}
+
+	/* read in data */
+	err = spi_read(card->spi, buf, len);
+
+out:
+	spu_transaction_finish(card);
+	return err;
+}
+
+/* Read 16 bits from an SPI register */
+static inline int spu_read_u16(struct if_spi_card *card, u16 reg, u16 *val)
+{
+	return spu_read(card, reg, (u8 *)val, sizeof(u16));
+}
+
+/* Read 32 bits from an SPI register.
+ * The low 16 bits are read first. */
+static int spu_read_u32(struct if_spi_card *card, u16 reg, u32 *val)
+{
+	u16 buf[2];
+	int err;
+	err = spu_read(card, reg, (u8 *)buf, sizeof(u32));
+	if (!err)
+		*val = buf[0] | (buf[1] << 16);
+	return err;
+}
+
+/* Keep reading 16 bits from an SPI register until you get the correct result.
+ *
+ * If mask = 0, the correct result is any non-zero number.
+ * If mask != 0, the correct result is any number where
+ * number & target_mask == target
+ *
+ * Returns -ETIMEDOUT if a second passes without the correct result. */
+static int spu_wait_for_u16(struct if_spi_card *card, u16 reg,
+			u16 target_mask, u16 target)
+{
+	int err;
+	unsigned long timeout = jiffies + 5*HZ;
+	while (1) {
+		u16 val;
+		err = spu_read_u16(card, reg, &val);
+		if (err)
+			return err;
+		if (target_mask) {
+			if ((val & target_mask) == target)
+				return 0;
+		} else {
+			if (val)
+				return 0;
+		}
+		udelay(100);
+		if (time_after(jiffies, timeout)) {
+			lbs_pr_err("%s: timeout with val=%02x, "
+			       "target_mask=%02x, target=%02x\n",
+			       __func__, val, target_mask, target);
+			return -ETIMEDOUT;
+		}
+	}
+}
+
+/* Read 16 bits from an SPI register until you receive a specific value.
+ * Returns -ETIMEDOUT if a 4 tries pass without success. */
+static int spu_wait_for_u32(struct if_spi_card *card, u32 reg, u32 target)
+{
+	int err, try;
+	for (try = 0; try < 4; ++try) {
+		u32 val = 0;
+		err = spu_read_u32(card, reg, &val);
+		if (err)
+			return err;
+		if (val == target)
+			return 0;
+		mdelay(100);
+	}
+	return -ETIMEDOUT;
+}
+
+static int spu_set_interrupt_mode(struct if_spi_card *card,
+			   int suppress_host_int,
+			   int auto_int)
+{
+	int err = 0;
+
+	/* We can suppress a host interrupt by clearing the appropriate
+	 * bit in the "host interrupt status mask" register */
+	if (suppress_host_int) {
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG, 0);
+		if (err)
+			return err;
+	} else {
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG,
+			      IF_SPI_HISM_TX_DOWNLOAD_RDY |
+			      IF_SPI_HISM_RX_UPLOAD_RDY |
+			      IF_SPI_HISM_CMD_DOWNLOAD_RDY |
+			      IF_SPI_HISM_CARDEVENT |
+			      IF_SPI_HISM_CMD_UPLOAD_RDY);
+		if (err)
+			return err;
+	}
+
+	/* If auto-interrupts are on, the completion of certain transactions
+	 * will trigger an interrupt automatically. If auto-interrupts
+	 * are off, we need to set the "Card Interrupt Cause" register to
+	 * trigger a card interrupt. */
+	if (auto_int) {
+		err = spu_write_u16(card, IF_SPI_HOST_INT_CTRL_REG,
+				IF_SPI_HICT_TX_DOWNLOAD_OVER_AUTO |
+				IF_SPI_HICT_RX_UPLOAD_OVER_AUTO |
+				IF_SPI_HICT_CMD_DOWNLOAD_OVER_AUTO |
+				IF_SPI_HICT_CMD_UPLOAD_OVER_AUTO);
+		if (err)
+			return err;
+	} else {
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG, 0);
+		if (err)
+			return err;
+	}
+	return err;
+}
+
+static int spu_get_chip_revision(struct if_spi_card *card,
+				  u16 *card_id, u8 *card_rev)
+{
+	int err = 0;
+	u32 dev_ctrl;
+	err = spu_read_u32(card, IF_SPI_DEVICEID_CTRL_REG, &dev_ctrl);
+	if (err)
+		return err;
+	*card_id = IF_SPI_DEVICEID_CTRL_REG_TO_CARD_ID(dev_ctrl);
+	*card_rev = IF_SPI_DEVICEID_CTRL_REG_TO_CARD_REV(dev_ctrl);
+	return err;
+}
+
+static int spu_set_bus_mode(struct if_spi_card *card, u16 mode)
+{
+	int err = 0;
+	u16 rval;
+	/* set bus mode */
+	err = spu_write_u16(card, IF_SPI_SPU_BUS_MODE_REG, mode);
+	if (err)
+		return err;
+	/* Check that we were able to read back what we just wrote. */
+	err = spu_read_u16(card, IF_SPI_SPU_BUS_MODE_REG, &rval);
+	if (err)
+		return err;
+	if (rval != mode) {
+		lbs_pr_err("Can't read bus mode register.\n");
+		return -EIO;
+	}
+	return 0;
+}
+
+static int spu_init(struct if_spi_card *card, int use_dummy_writes)
+{
+	int err = 0;
+	u32 delay;
+
+	/* We have to start up in timed delay mode so that we can safely
+	 * read the Delay Read Register. */
+	card->use_dummy_writes = 0;
+	err = spu_set_bus_mode(card,
+				IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING |
+				IF_SPI_BUS_MODE_DELAY_METHOD_TIMED |
+				IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA);
+	if (err)
+		return err;
+	card->spu_port_delay = 1000;
+	card->spu_reg_delay = 1000;
+	err = spu_read_u32(card, IF_SPI_DELAY_READ_REG, &delay);
+	if (err)
+		return err;
+	card->spu_port_delay = delay & 0x0000ffff;
+	card->spu_reg_delay = (delay & 0xffff0000) >> 16;
+
+	/* If dummy clock delay mode has been requested, switch to it now */
+	if (use_dummy_writes) {
+		card->use_dummy_writes = 1;
+		err = spu_set_bus_mode(card,
+				IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING |
+				IF_SPI_BUS_MODE_DELAY_METHOD_DUMMY_CLOCK |
+				IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA);
+		if (err)
+			return err;
+	}
+
+	lbs_deb_spi("Initialized SPU unit. "
+		    "spu_port_delay=0x%04lx, spu_reg_delay=0x%04lx\n",
+		    card->spu_port_delay, card->spu_reg_delay);
+	return err;
+}
+
+/*
+ * Firmware Loading
+ */
+
+static int if_spi_prog_helper_firmware(struct if_spi_card *card)
+{
+	int err = 0;
+	const struct firmware *firmware = NULL;
+	int bytes_remaining;
+	const u8 *fw;
+	u8 temp[HELPER_FW_LOAD_CHUNK_SZ];
+	struct spi_device *spi = card->spi;
+
+	lbs_deb_enter(LBS_DEB_SPI);
+
+	err = spu_set_interrupt_mode(card, 1, 0);
+	if (err)
+		goto out;
+	/* Get helper firmware image */
+	err = request_firmware(&firmware, card->helper_fw_name, &spi->dev);
+	if (err) {
+		lbs_pr_err("request_firmware failed with err = %d\n", err);
+		goto out;
+	}
+	bytes_remaining = firmware->size;
+	fw = firmware->data;
+
+	/* Load helper firmware image */
+	while (bytes_remaining > 0) {
+		/* Scratch pad 1 should contain the number of bytes we
+		 * want to download to the firmware */
+		err = spu_write_u16(card, IF_SPI_SCRATCH_1_REG,
+					HELPER_FW_LOAD_CHUNK_SZ);
+		if (err)
+			goto release_firmware;
+
+		err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+					IF_SPI_HIST_CMD_DOWNLOAD_RDY,
+					IF_SPI_HIST_CMD_DOWNLOAD_RDY);
+		if (err)
+			goto release_firmware;
+
+		/* Feed the data into the command read/write port reg
+		 * in chunks of 64 bytes */
+		memset(temp, 0, sizeof(temp));
+		memcpy(temp, fw,
+		       min(bytes_remaining, HELPER_FW_LOAD_CHUNK_SZ));
+		mdelay(10);
+		err = spu_write(card, IF_SPI_CMD_RDWRPORT_REG,
+					temp, HELPER_FW_LOAD_CHUNK_SZ);
+		if (err)
+			goto release_firmware;
+
+		/* Interrupt the boot code */
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+		if (err)
+			goto release_firmware;
+		err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,
+				       IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+		if (err)
+			goto release_firmware;
+		bytes_remaining -= HELPER_FW_LOAD_CHUNK_SZ;
+		fw += HELPER_FW_LOAD_CHUNK_SZ;
+	}
+
+	/* Once the helper / single stage firmware download is complete,
+	 * write 0 to scratch pad 1 and interrupt the
+	 * bootloader. This completes the helper download. */
+	err = spu_write_u16(card, IF_SPI_SCRATCH_1_REG, FIRMWARE_DNLD_OK);
+	if (err)
+		goto release_firmware;
+	err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+	if (err)
+		goto release_firmware;
+	err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,
+				IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+		goto release_firmware;
+
+	lbs_deb_spi("waiting for helper to boot...\n");
+
+release_firmware:
+	release_firmware(firmware);
+out:
+	if (err)
+		lbs_pr_err("failed to load helper firmware (err=%d)\n", err);
+	lbs_deb_leave_args(LBS_DEB_SPI, "err %d", err);
+	return err;
+}
+
+/* Returns the length of the next packet the firmware expects us to send
+ * Sets crc_err if the previous transfer had a CRC error. */
+static int if_spi_prog_main_firmware_check_len(struct if_spi_card *card,
+						int *crc_err)
+{
+	u16 len;
+	int err = 0;
+
+	/* wait until the host interrupt status register indicates
+	 * that we are ready to download */
+	err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+				IF_SPI_HIST_CMD_DOWNLOAD_RDY,
+				IF_SPI_HIST_CMD_DOWNLOAD_RDY);
+	if (err) {
+		lbs_pr_err("timed out waiting for host_int_status\n");
+		return err;
+	}
+
+	/* Ask the device how many bytes of firmware it wants. */
+	err = spu_read_u16(card, IF_SPI_SCRATCH_1_REG, &len);
+	if (err)
+		return err;
+
+	if (len > IF_SPI_CMD_BUF_SIZE) {
+		lbs_pr_err("firmware load device requested a larger "
+			   "tranfer than we are prepared to "
+			   "handle. (len = %d)\n", len);
+		return -EIO;
+	}
+	if (len & 0x1) {
+		lbs_deb_spi("%s: crc error\n", __func__);
+		len &= ~0x1;
+		*crc_err = 1;
+	} else
+		*crc_err = 0;
+
+	return len;
+}
+
+static int if_spi_prog_main_firmware(struct if_spi_card *card)
+{
+	int len, prev_len;
+	int bytes, crc_err = 0, err = 0;
+	const struct firmware *firmware = NULL;
+	const u8 *fw;
+	struct spi_device *spi = card->spi;
+	u16 num_crc_errs;
+
+	lbs_deb_enter(LBS_DEB_SPI);
+
+	err = spu_set_interrupt_mode(card, 1, 0);
+	if (err)
+		goto out;
+
+	/* Get firmware image */
+	err = request_firmware(&firmware, card->main_fw_name, &spi->dev);
+	if (err) {
+		lbs_pr_err("%s: can't get firmware '%s' from kernel. "
+			"err = %d\n", __func__, card->main_fw_name, err);
+		goto out;
+	}
+
+	err = spu_wait_for_u16(card, IF_SPI_SCRATCH_1_REG, 0, 0);
+	if (err) {
+		lbs_pr_err("%s: timed out waiting for initial "
+			   "scratch reg = 0\n", __func__);
+		goto release_firmware;
+	}
+
+	num_crc_errs = 0;
+	prev_len = 0;
+	bytes = firmware->size;
+	fw = firmware->data;
+	while ((len = if_spi_prog_main_firmware_check_len(card, &crc_err))) {
+		if (len < 0) {
+			err = len;
+			goto release_firmware;
+		}
+		if (bytes < 0) {
+			/* If there are no more bytes left, we would normally
+			 * expect to have terminated with len = 0 */
+			lbs_pr_err("Firmware load wants more bytes "
+				   "than we have to offer.\n");
+			break;
+		}
+		if (crc_err) {
+			/* Previous transfer failed. */
+			if (++num_crc_errs > MAX_MAIN_FW_LOAD_CRC_ERR) {
+				lbs_pr_err("Too many CRC errors encountered "
+					   "in firmware load.\n");
+				err = -EIO;
+				goto release_firmware;
+			}
+		} else {
+			/* Previous transfer succeeded. Advance counters. */
+			bytes -= prev_len;
+			fw += prev_len;
+		}
+		if (bytes < len) {
+			memset(card->cmd_buffer, 0, len);
+			memcpy(card->cmd_buffer, fw, bytes);
+		} else
+			memcpy(card->cmd_buffer, fw, len);
+
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+		if (err)
+			goto release_firmware;
+		err = spu_write(card, IF_SPI_CMD_RDWRPORT_REG,
+				card->cmd_buffer, len);
+		if (err)
+			goto release_firmware;
+		err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG ,
+					IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+		if (err)
+			goto release_firmware;
+		prev_len = len;
+	}
+	if (bytes > prev_len) {
+		lbs_pr_err("firmware load wants fewer bytes than "
+			   "we have to offer.\n");
+	}
+
+	/* Confirm firmware download */
+	err = spu_wait_for_u32(card, IF_SPI_SCRATCH_4_REG,
+					SUCCESSFUL_FW_DOWNLOAD_MAGIC);
+	if (err) {
+		lbs_pr_err("failed to confirm the firmware download\n");
+		goto release_firmware;
+	}
+
+release_firmware:
+	release_firmware(firmware);
+
+out:
+	if (err)
+		lbs_pr_err("failed to load firmware (err=%d)\n", err);
+	lbs_deb_leave_args(LBS_DEB_SPI, "err %d", err);
+	return err;
+}
+
+/*
+ * SPI Transfer Thread
+ *
+ * The SPI thread handles all SPI transfers, so there is no need for a lock.
+ */
+
+/* Move a command from the card to the host */
+static int if_spi_c2h_cmd(struct if_spi_card *card)
+{
+	struct lbs_private *priv = card->priv;
+	unsigned long flags;
+	int err = 0;
+	u16 len;
+	u8 i;
+
+	/* We need a buffer big enough to handle whatever people send to
+	 * hw_host_to_card */
+	BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE < LBS_CMD_BUFFER_SIZE);
+	BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE < LBS_UPLD_SIZE);
+
+	/* It's just annoying if the buffer size isn't a multiple of 4, because
+	 * then we might have len <  IF_SPI_CMD_BUF_SIZE but
+	 * ALIGN(len, 4) > IF_SPI_CMD_BUF_SIZE */
+	BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE % 4 != 0);
+
+	lbs_deb_enter(LBS_DEB_SPI);
+
+	/* How many bytes are there to read? */
+	err = spu_read_u16(card, IF_SPI_SCRATCH_2_REG, &len);
+	if (err)
+		goto out;
+	if (!len) {
+		lbs_pr_err("%s: error: card has no data for host\n",
+			   __func__);
+		err = -EINVAL;
+		goto out;
+	} else if (len > IF_SPI_CMD_BUF_SIZE) {
+		lbs_pr_err("%s: error: response packet too large: "
+			   "%d bytes, but maximum is %d\n",
+			   __func__, len, IF_SPI_CMD_BUF_SIZE);
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* Read the data from the WLAN module into our command buffer */
+	err = spu_read(card, IF_SPI_CMD_RDWRPORT_REG,
+				card->cmd_buffer, ALIGN(len, 4));
+	if (err)
+		goto out;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	i = (priv->resp_idx == 0) ? 1 : 0;
+	BUG_ON(priv->resp_len[i]);
+	priv->resp_len[i] = len;
+	memcpy(priv->resp_buf[i], card->cmd_buffer, len);
+	lbs_notify_command_response(priv, i);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+out:
+	if (err)
+		lbs_pr_err("%s: err=%d\n", __func__, err);
+	lbs_deb_leave(LBS_DEB_SPI);
+	return err;
+}
+
+/* Move data from the card to the host */
+static int if_spi_c2h_data(struct if_spi_card *card)
+{
+	struct sk_buff *skb;
+	char *data;
+	u16 len;
+	int err = 0;
+
+	lbs_deb_enter(LBS_DEB_SPI);
+
+	/* How many bytes are there to read? */
+	err = spu_read_u16(card, IF_SPI_SCRATCH_1_REG, &len);
+	if (err)
+		goto out;
+	if (!len) {
+		lbs_pr_err("%s: error: card has no data for host\n",
+			   __func__);
+		err = -EINVAL;
+		goto out;
+	} else if (len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
+		lbs_pr_err("%s: error: card has %d bytes of data, but "
+			   "our maximum skb size is %u\n",
+			   __func__, len, MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* TODO: should we allocate a smaller skb if we have less data? */
+	skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
+	if (!skb) {
+		err = -ENOBUFS;
+		goto out;
+	}
+	skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
+	data = skb_put(skb, len);
+
+	/* Read the data from the WLAN module into our skb... */
+	err = spu_read(card, IF_SPI_DATA_RDWRPORT_REG, data, ALIGN(len, 4));
+	if (err)
+		goto free_skb;
+
+	/* pass the SKB to libertas */
+	err = lbs_process_rxed_packet(card->priv, skb);
+	if (err)
+		goto free_skb;
+
+	/* success */
+	goto out;
+
+free_skb:
+	dev_kfree_skb(skb);
+out:
+	if (err)
+		lbs_pr_err("%s: err=%d\n", __func__, err);
+	lbs_deb_leave(LBS_DEB_SPI);
+	return err;
+}
+
+/* Move data or a command from the host to the card. */
+static void if_spi_h2c(struct if_spi_card *card,
+			struct if_spi_packet *packet, int type)
+{
+	int err = 0;
+	u16 int_type, port_reg;
+
+	switch (type) {
+	case MVMS_DAT:
+		int_type = IF_SPI_CIC_TX_DOWNLOAD_OVER;
+		port_reg = IF_SPI_DATA_RDWRPORT_REG;
+		break;
+	case MVMS_CMD:
+		int_type = IF_SPI_CIC_CMD_DOWNLOAD_OVER;
+		port_reg = IF_SPI_CMD_RDWRPORT_REG;
+		break;
+	default:
+		lbs_pr_err("can't transfer buffer of type %d\n", type);
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* Write the data to the card */
+	err = spu_write(card, port_reg, packet->buffer, packet->blen);
+	if (err)
+		goto out;
+
+out:
+	kfree(packet);
+
+	if (err)
+		lbs_pr_err("%s: error %d\n", __func__, err);
+}
+
+/* Inform the host about a card event */
+static void if_spi_e2h(struct if_spi_card *card)
+{
+	int err = 0;
+	unsigned long flags;
+	u32 cause;
+	struct lbs_private *priv = card->priv;
+
+	err = spu_read_u32(card, IF_SPI_SCRATCH_3_REG, &cause);
+	if (err)
+		goto out;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	lbs_queue_event(priv, cause & 0xff);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+out:
+	if (err)
+		lbs_pr_err("%s: error %d\n", __func__, err);
+}
+
+static int lbs_spi_thread(void *data)
+{
+	int err;
+	struct if_spi_card *card = data;
+	u16 hiStatus;
+	unsigned long flags;
+	struct if_spi_packet *packet;
+
+	while (1) {
+		/* Wait to be woken up by one of two things.  First, our ISR
+		 * could tell us that something happened on the WLAN.
+		 * Secondly, libertas could call hw_host_to_card with more
+		 * data, which we might be able to send.
+		 */
+		do {
+			err = down_interruptible(&card->spi_ready);
+			if (!card->run_thread) {
+				up(&card->spi_thread_terminated);
+				do_exit(0);
+			}
+		} while (err == EINTR);
+
+		/* Read the host interrupt status register to see what we
+		 * can do. */
+		err = spu_read_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+					&hiStatus);
+		if (err) {
+			lbs_pr_err("I/O error\n");
+			goto err;
+		}
+
+		if (hiStatus & IF_SPI_HIST_CMD_UPLOAD_RDY)
+			err = if_spi_c2h_cmd(card);
+			if (err)
+				goto err;
+		if (hiStatus & IF_SPI_HIST_RX_UPLOAD_RDY)
+			err = if_spi_c2h_data(card);
+			if (err)
+				goto err;
+		if (hiStatus & IF_SPI_HIST_CMD_DOWNLOAD_RDY) {
+			/* This means two things. First of all,
+			 * if there was a previous command sent, the card has
+			 * successfully received it.
+			 * Secondly, it is now ready to download another
+			 * command.
+			 */
+			lbs_host_to_card_done(card->priv);
+
+			/* Do we have any command packets from the host to
+			 * send? */
+			packet = NULL;
+			spin_lock_irqsave(&card->buffer_lock, flags);
+			if (!list_empty(&card->cmd_packet_list)) {
+				packet = (struct if_spi_packet *)(card->
+						cmd_packet_list.next);
+				list_del(&packet->list);
+			}
+			spin_unlock_irqrestore(&card->buffer_lock, flags);
+
+			if (packet)
+				if_spi_h2c(card, packet, MVMS_CMD);
+		}
+		if (hiStatus & IF_SPI_HIST_TX_DOWNLOAD_RDY) {
+			/* Do we have any data packets from the host to
+			 * send? */
+			packet = NULL;
+			spin_lock_irqsave(&card->buffer_lock, flags);
+			if (!list_empty(&card->data_packet_list)) {
+				packet = (struct if_spi_packet *)(card->
+						data_packet_list.next);
+				list_del(&packet->list);
+			}
+			spin_unlock_irqrestore(&card->buffer_lock, flags);
+
+			if (packet)
+				if_spi_h2c(card, packet, MVMS_DAT);
+		}
+		if (hiStatus & IF_SPI_HIST_CARD_EVENT)
+			if_spi_e2h(card);
+
+err:
+		if (err)
+			lbs_pr_err("%s: got error %d\n", __func__, err);
+	}
+}
+
+/* Block until lbs_spi_thread thread has terminated */
+static void if_spi_terminate_spi_thread(struct if_spi_card *card)
+{
+	/* It would be nice to use kthread_stop here, but that function
+	 * can't wake threads waiting for a semaphore. */
+	card->run_thread = 0;
+	up(&card->spi_ready);
+	down(&card->spi_thread_terminated);
+}
+
+/*
+ * Host to Card
+ *
+ * Called from Libertas to transfer some data to the WLAN device
+ * We can't sleep here. */
+static int if_spi_host_to_card(struct lbs_private *priv,
+				u8 type, u8 *buf, u16 nb)
+{
+	int err = 0;
+	unsigned long flags;
+	struct if_spi_card *card = priv->card;
+	struct if_spi_packet *packet;
+	u16 blen;
+
+	lbs_deb_enter_args(LBS_DEB_SPI, "type %d, bytes %d", type, nb);
+
+	if (nb == 0) {
+		lbs_pr_err("%s: invalid size requested: %d\n", __func__, nb);
+		err = -EINVAL;
+		goto out;
+	}
+	blen = ALIGN(nb, 4);
+	packet = kzalloc(sizeof(struct if_spi_packet) + blen, GFP_ATOMIC);
+	if (!packet) {
+		err = -ENOMEM;
+		goto out;
+	}
+	packet->blen = blen;
+	memcpy(packet->buffer, buf, nb);
+	memset(packet->buffer + nb, 0, blen - nb);
+
+	switch (type) {
+	case MVMS_CMD:
+		priv->dnld_sent = DNLD_CMD_SENT;
+		spin_lock_irqsave(&card->buffer_lock, flags);
+		list_add_tail(&packet->list, &card->cmd_packet_list);
+		spin_unlock_irqrestore(&card->buffer_lock, flags);
+		break;
+	case MVMS_DAT:
+		priv->dnld_sent = DNLD_DATA_SENT;
+		spin_lock_irqsave(&card->buffer_lock, flags);
+		list_add_tail(&packet->list, &card->data_packet_list);
+		spin_unlock_irqrestore(&card->buffer_lock, flags);
+		break;
+	default:
+		lbs_pr_err("can't transfer buffer of type %d", type);
+		err = -EINVAL;
+		break;
+	}
+
+	/* Wake up the spi thread */
+	up(&card->spi_ready);
+out:
+	lbs_deb_leave_args(LBS_DEB_SPI, "err=%d", err);
+	return err;
+}
+
+/*
+ * Host Interrupts
+ *
+ * Service incoming interrupts from the WLAN device. We can't sleep here, so
+ * don't try to talk on the SPI bus, just wake up the SPI thread.
+ */
+static irqreturn_t if_spi_host_interrupt(int irq, void *dev_id)
+{
+	struct if_spi_card *card = dev_id;
+
+	up(&card->spi_ready);
+	return IRQ_HANDLED;
+}
+
+/*
+ * SPI callbacks
+ */
+
+static int if_spi_calculate_fw_names(u16 card_id,
+			      char *helper_fw, char *main_fw)
+{
+	int i;
+	for (i = 0; i < ARRAY_SIZE(chip_id_to_device_name); ++i) {
+		if (card_id == chip_id_to_device_name[i].chip_id)
+			break;
+	}
+	if (i == ARRAY_SIZE(chip_id_to_device_name)) {
+		lbs_pr_err("Unsupported chip_id: 0x%02x\n", card_id);
+		return -EAFNOSUPPORT;
+	}
+	snprintf(helper_fw, FIRMWARE_NAME_MAX, "libertas/gspi%d_hlp.bin",
+		 chip_id_to_device_name[i].name);
+	snprintf(main_fw, FIRMWARE_NAME_MAX, "libertas/gspi%d.bin",
+		 chip_id_to_device_name[i].name);
+	return 0;
+}
+
+static int __devinit if_spi_probe(struct spi_device *spi)
+{
+	struct if_spi_card *card;
+	struct lbs_private *priv = NULL;
+	struct libertas_spi_platform_data *pdata = spi->dev.platform_data;
+	int err = 0;
+	u32 scratch;
+
+	lbs_deb_enter(LBS_DEB_SPI);
+
+	/* Allocate card structure to represent this specific device */
+	card = kzalloc(sizeof(struct if_spi_card), GFP_KERNEL);
+	if (!card) {
+		err = -ENOMEM;
+		goto out;
+	}
+	spi_set_drvdata(spi, card);
+	card->spi = spi;
+	card->gpio_cs = pdata->gpio_cs;
+	card->prev_xfer_time = jiffies;
+
+	sema_init(&card->spi_ready, 0);
+	sema_init(&card->spi_thread_terminated, 0);
+	INIT_LIST_HEAD(&card->cmd_packet_list);
+	INIT_LIST_HEAD(&card->data_packet_list);
+	spin_lock_init(&card->buffer_lock);
+
+	/* set up GPIO CS line. TODO: use  regular CS line */
+	err = gpio_request(card->gpio_cs, "if_spi_gpio_chip_select");
+	if (err)
+		goto free_card;
+	err = gpio_direction_output(card->gpio_cs, 1);
+	if (err)
+		goto free_gpio;
+
+	/* Initialize the SPI Interface Unit */
+	err = spu_init(card, pdata->use_dummy_writes);
+	if (err)
+		goto free_gpio;
+	err = spu_get_chip_revision(card, &card->card_id, &card->card_rev);
+	if (err)
+		goto free_gpio;
+
+	/* Firmware load */
+	err = spu_read_u32(card, IF_SPI_SCRATCH_4_REG, &scratch);
+	if (err)
+		goto free_gpio;
+	if (scratch == SUCCESSFUL_FW_DOWNLOAD_MAGIC)
+		lbs_deb_spi("Firmware is already loaded for "
+			    "Marvell WLAN 802.11 adapter\n");
+	else {
+		err = if_spi_calculate_fw_names(card->card_id,
+				card->helper_fw_name, card->main_fw_name);
+		if (err)
+			goto free_gpio;
+
+		lbs_deb_spi("Initializing FW for Marvell WLAN 802.11 adapter "
+				"(chip_id = 0x%04x, chip_rev = 0x%02x) "
+				"attached to SPI bus_num %d, chip_select %d. "
+				"spi->max_speed_hz=%d\n",
+				card->card_id, card->card_rev,
+				spi->master->bus_num, spi->chip_select,
+				spi->max_speed_hz);
+		err = if_spi_prog_helper_firmware(card);
+		if (err)
+			goto free_gpio;
+		err = if_spi_prog_main_firmware(card);
+		if (err)
+			goto free_gpio;
+		lbs_deb_spi("loaded FW for Marvell WLAN 802.11 adapter\n");
+	}
+
+	err = spu_set_interrupt_mode(card, 0, 1);
+	if (err)
+		goto free_gpio;
+
+	/* Register our card with libertas.
+	 * This will call alloc_etherdev */
+	priv = lbs_add_card(card, &spi->dev);
+	if (!priv) {
+		err = -ENOMEM;
+		goto free_gpio;
+	}
+	card->priv = priv;
+	priv->card = card;
+	priv->hw_host_to_card = if_spi_host_to_card;
+	priv->fw_ready = 1;
+	priv->ps_supported = 1;
+
+	/* Initialize interrupt handling stuff. */
+	card->run_thread = 1;
+	card->spi_thread = kthread_run(lbs_spi_thread, card, "lbs_spi_thread");
+	if (IS_ERR(card->spi_thread)) {
+		card->run_thread = 0;
+		err = PTR_ERR(card->spi_thread);
+		lbs_pr_err("error creating SPI thread: err=%d\n", err);
+		goto remove_card;
+	}
+	err = request_irq(spi->irq, if_spi_host_interrupt,
+			IRQF_TRIGGER_FALLING, "libertas_spi", card);
+	if (err) {
+		lbs_pr_err("can't get host irq line-- request_irq failed\n");
+		goto terminate_thread;
+	}
+
+	/* Start the card.
+	 * This will call register_netdev, and we'll start
+	 * getting interrupts... */
+	err = lbs_start_card(priv);
+	if (err)
+		goto release_irq;
+
+	lbs_deb_spi("Finished initializing WLAN module.\n");
+
+	/* successful exit */
+	goto out;
+
+release_irq:
+	free_irq(spi->irq, card);
+terminate_thread:
+	if_spi_terminate_spi_thread(card);
+remove_card:
+	lbs_remove_card(priv); /* will call free_netdev */
+free_gpio:
+	gpio_free(card->gpio_cs);
+free_card:
+	free_if_spi_card(card);
+out:
+	lbs_deb_leave_args(LBS_DEB_SPI, "err %d\n", err);
+	return err;
+}
+
+static int __devexit libertas_spi_remove(struct spi_device *spi)
+{
+	struct if_spi_card *card = spi_get_drvdata(spi);
+	struct lbs_private *priv = card->priv;
+
+	lbs_deb_spi("libertas_spi_remove\n");
+	lbs_deb_enter(LBS_DEB_SPI);
+	priv->surpriseremoved = 1;
+
+	lbs_stop_card(priv);
+	free_irq(spi->irq, card);
+	if_spi_terminate_spi_thread(card);
+	lbs_remove_card(priv); /* will call free_netdev */
+	gpio_free(card->gpio_cs);
+	free_if_spi_card(card);
+	lbs_deb_leave(LBS_DEB_SPI);
+	return 0;
+}
+
+static struct spi_driver libertas_spi_driver = {
+	.probe	= if_spi_probe,
+	.remove = __devexit_p(libertas_spi_remove),
+	.driver = {
+		.name	= "libertas_spi",
+		.bus	= &spi_bus_type,
+		.owner	= THIS_MODULE,
+	},
+};
+
+/*
+ * Module functions
+ */
+
+static int __init if_spi_init_module(void)
+{
+	int ret = 0;
+	lbs_deb_enter(LBS_DEB_SPI);
+	printk(KERN_INFO "libertas_spi: Libertas SPI driver\n");
+	ret = spi_register_driver(&libertas_spi_driver);
+	lbs_deb_leave(LBS_DEB_SPI);
+	return ret;
+}
+
+static void __exit if_spi_exit_module(void)
+{
+	lbs_deb_enter(LBS_DEB_SPI);
+	spi_unregister_driver(&libertas_spi_driver);
+	lbs_deb_leave(LBS_DEB_SPI);
+}
+
+module_init(if_spi_init_module);
+module_exit(if_spi_exit_module);
+
+MODULE_DESCRIPTION("Libertas SPI WLAN Driver");
+MODULE_AUTHOR("Andrey Yurovsky <andrey@cozybit.com>, "
+	      "Colin McCabe <colin@cozybit.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/libertas/if_spi.h b/drivers/net/wireless/libertas/if_spi.h
new file mode 100644
index 000000000000..2103869cc5b0
--- /dev/null
+++ b/drivers/net/wireless/libertas/if_spi.h
@@ -0,0 +1,208 @@
+/*
+ *	linux/drivers/net/wireless/libertas/if_spi.c
+ *
+ *	Driver for Marvell SPI WLAN cards.
+ *
+ *	Copyright 2008 Analog Devices Inc.
+ *
+ *	Authors:
+ *	Andrey Yurovsky <andrey@cozybit.com>
+ *	Colin McCabe <colin@cozybit.com>
+ *
+ * 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.
+ */
+
+#ifndef _LBS_IF_SPI_H_
+#define _LBS_IF_SPI_H_
+
+#define IPFIELD_ALIGN_OFFSET 2
+#define IF_SPI_CMD_BUF_SIZE 2400
+
+/***************** Firmware *****************/
+struct chip_ident {
+	u16 chip_id;
+	u16 name;
+};
+
+#define MAX_MAIN_FW_LOAD_CRC_ERR 10
+
+/* Chunk size when loading the helper firmware */
+#define HELPER_FW_LOAD_CHUNK_SZ 64
+
+/* Value to write to indicate end of helper firmware dnld */
+#define FIRMWARE_DNLD_OK 0x0000
+
+/* Value to check once the main firmware is downloaded */
+#define SUCCESSFUL_FW_DOWNLOAD_MAGIC 0x88888888
+
+/***************** SPI Interface Unit *****************/
+/* Masks used in SPI register read/write operations */
+#define IF_SPI_READ_OPERATION_MASK 0x0
+#define IF_SPI_WRITE_OPERATION_MASK 0x8000
+
+/* SPI register offsets. 4-byte aligned. */
+#define IF_SPI_DEVICEID_CTRL_REG 0x00	/* DeviceID controller reg */
+#define IF_SPI_IO_READBASE_REG 0x04 	/* Read I/O base reg */
+#define IF_SPI_IO_WRITEBASE_REG 0x08	/* Write I/O base reg */
+#define IF_SPI_IO_RDWRPORT_REG 0x0C	/* Read/Write I/O port reg */
+
+#define IF_SPI_CMD_READBASE_REG 0x10	/* Read command base reg */
+#define IF_SPI_CMD_WRITEBASE_REG 0x14	/* Write command base reg */
+#define IF_SPI_CMD_RDWRPORT_REG 0x18	/* Read/Write command port reg */
+
+#define IF_SPI_DATA_READBASE_REG 0x1C	/* Read data base reg */
+#define IF_SPI_DATA_WRITEBASE_REG 0x20	/* Write data base reg */
+#define IF_SPI_DATA_RDWRPORT_REG 0x24	/* Read/Write data port reg */
+
+#define IF_SPI_SCRATCH_1_REG 0x28	/* Scratch reg 1 */
+#define IF_SPI_SCRATCH_2_REG 0x2C	/* Scratch reg 2 */
+#define IF_SPI_SCRATCH_3_REG 0x30	/* Scratch reg 3 */
+#define IF_SPI_SCRATCH_4_REG 0x34	/* Scratch reg 4 */
+
+#define IF_SPI_TX_FRAME_SEQ_NUM_REG 0x38 /* Tx frame sequence number reg */
+#define IF_SPI_TX_FRAME_STATUS_REG 0x3C	/* Tx frame status reg */
+
+#define IF_SPI_HOST_INT_CTRL_REG 0x40	/* Host interrupt controller reg */
+
+#define IF_SPI_CARD_INT_CAUSE_REG 0x44	/* Card interrupt cause reg */
+#define IF_SPI_CARD_INT_STATUS_REG 0x48 /* Card interupt status reg */
+#define IF_SPI_CARD_INT_EVENT_MASK_REG 0x4C /* Card interrupt event mask */
+#define IF_SPI_CARD_INT_STATUS_MASK_REG	0x50 /* Card interrupt status mask */
+
+#define IF_SPI_CARD_INT_RESET_SELECT_REG 0x54 /* Card interrupt reset select */
+
+#define IF_SPI_HOST_INT_CAUSE_REG 0x58	/* Host interrupt cause reg */
+#define IF_SPI_HOST_INT_STATUS_REG 0x5C	/* Host interrupt status reg */
+#define IF_SPI_HOST_INT_EVENT_MASK_REG 0x60 /* Host interrupt event mask */
+#define IF_SPI_HOST_INT_STATUS_MASK_REG	0x64 /* Host interrupt status mask */
+#define IF_SPI_HOST_INT_RESET_SELECT_REG 0x68 /* Host interrupt reset select */
+
+#define IF_SPI_DELAY_READ_REG 0x6C	/* Delay read reg */
+#define IF_SPI_SPU_BUS_MODE_REG 0x70	/* SPU BUS mode reg */
+
+/***************** IF_SPI_DEVICEID_CTRL_REG *****************/
+#define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_ID(dc) ((dc & 0xffff0000)>>16)
+#define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_REV(dc) (dc & 0x000000ff)
+
+/***************** IF_SPI_HOST_INT_CTRL_REG *****************/
+/** Host Interrupt Control bit : Wake up */
+#define IF_SPI_HICT_WAKE_UP				(1<<0)
+/** Host Interrupt Control bit : WLAN ready */
+#define IF_SPI_HICT_WLAN_READY				(1<<1)
+/*#define IF_SPI_HICT_FIFO_FIRST_HALF_EMPTY		(1<<2) */
+/*#define IF_SPI_HICT_FIFO_SECOND_HALF_EMPTY		(1<<3) */
+/*#define IF_SPI_HICT_IRQSRC_WLAN			(1<<4) */
+/** Host Interrupt Control bit : Tx auto download */
+#define IF_SPI_HICT_TX_DOWNLOAD_OVER_AUTO		(1<<5)
+/** Host Interrupt Control bit : Rx auto upload */
+#define IF_SPI_HICT_RX_UPLOAD_OVER_AUTO			(1<<6)
+/** Host Interrupt Control bit : Command auto download */
+#define IF_SPI_HICT_CMD_DOWNLOAD_OVER_AUTO		(1<<7)
+/** Host Interrupt Control bit : Command auto upload */
+#define IF_SPI_HICT_CMD_UPLOAD_OVER_AUTO		(1<<8)
+
+/***************** IF_SPI_CARD_INT_CAUSE_REG *****************/
+/** Card Interrupt Case bit : Tx download over */
+#define IF_SPI_CIC_TX_DOWNLOAD_OVER			(1<<0)
+/** Card Interrupt Case bit : Rx upload over */
+#define IF_SPI_CIC_RX_UPLOAD_OVER			(1<<1)
+/** Card Interrupt Case bit : Command download over */
+#define IF_SPI_CIC_CMD_DOWNLOAD_OVER			(1<<2)
+/** Card Interrupt Case bit : Host event */
+#define IF_SPI_CIC_HOST_EVENT				(1<<3)
+/** Card Interrupt Case bit : Command upload over */
+#define IF_SPI_CIC_CMD_UPLOAD_OVER			(1<<4)
+/** Card Interrupt Case bit : Power down */
+#define IF_SPI_CIC_POWER_DOWN				(1<<5)
+
+/***************** IF_SPI_CARD_INT_STATUS_REG *****************/
+#define IF_SPI_CIS_TX_DOWNLOAD_OVER			(1<<0)
+#define IF_SPI_CIS_RX_UPLOAD_OVER			(1<<1)
+#define IF_SPI_CIS_CMD_DOWNLOAD_OVER			(1<<2)
+#define IF_SPI_CIS_HOST_EVENT				(1<<3)
+#define IF_SPI_CIS_CMD_UPLOAD_OVER			(1<<4)
+#define IF_SPI_CIS_POWER_DOWN				(1<<5)
+
+/***************** IF_SPI_HOST_INT_CAUSE_REG *****************/
+#define IF_SPI_HICU_TX_DOWNLOAD_RDY			(1<<0)
+#define IF_SPI_HICU_RX_UPLOAD_RDY			(1<<1)
+#define IF_SPI_HICU_CMD_DOWNLOAD_RDY			(1<<2)
+#define IF_SPI_HICU_CARD_EVENT				(1<<3)
+#define IF_SPI_HICU_CMD_UPLOAD_RDY			(1<<4)
+#define IF_SPI_HICU_IO_WR_FIFO_OVERFLOW			(1<<5)
+#define IF_SPI_HICU_IO_RD_FIFO_UNDERFLOW		(1<<6)
+#define IF_SPI_HICU_DATA_WR_FIFO_OVERFLOW		(1<<7)
+#define IF_SPI_HICU_DATA_RD_FIFO_UNDERFLOW		(1<<8)
+#define IF_SPI_HICU_CMD_WR_FIFO_OVERFLOW		(1<<9)
+#define IF_SPI_HICU_CMD_RD_FIFO_UNDERFLOW		(1<<10)
+
+/***************** IF_SPI_HOST_INT_STATUS_REG *****************/
+/** Host Interrupt Status bit : Tx download ready */
+#define IF_SPI_HIST_TX_DOWNLOAD_RDY			(1<<0)
+/** Host Interrupt Status bit : Rx upload ready */
+#define IF_SPI_HIST_RX_UPLOAD_RDY			(1<<1)
+/** Host Interrupt Status bit : Command download ready */
+#define IF_SPI_HIST_CMD_DOWNLOAD_RDY			(1<<2)
+/** Host Interrupt Status bit : Card event */
+#define IF_SPI_HIST_CARD_EVENT				(1<<3)
+/** Host Interrupt Status bit : Command upload ready */
+#define IF_SPI_HIST_CMD_UPLOAD_RDY			(1<<4)
+/** Host Interrupt Status bit : I/O write FIFO overflow */
+#define IF_SPI_HIST_IO_WR_FIFO_OVERFLOW			(1<<5)
+/** Host Interrupt Status bit : I/O read FIFO underflow */
+#define IF_SPI_HIST_IO_RD_FIFO_UNDRFLOW			(1<<6)
+/** Host Interrupt Status bit : Data write FIFO overflow */
+#define IF_SPI_HIST_DATA_WR_FIFO_OVERFLOW		(1<<7)
+/** Host Interrupt Status bit : Data read FIFO underflow */
+#define IF_SPI_HIST_DATA_RD_FIFO_UNDERFLOW		(1<<8)
+/** Host Interrupt Status bit : Command write FIFO overflow */
+#define IF_SPI_HIST_CMD_WR_FIFO_OVERFLOW		(1<<9)
+/** Host Interrupt Status bit : Command read FIFO underflow */
+#define IF_SPI_HIST_CMD_RD_FIFO_UNDERFLOW		(1<<10)
+
+/***************** IF_SPI_HOST_INT_STATUS_MASK_REG *****************/
+/** Host Interrupt Status Mask bit : Tx download ready */
+#define IF_SPI_HISM_TX_DOWNLOAD_RDY			(1<<0)
+/** Host Interrupt Status Mask bit : Rx upload ready */
+#define IF_SPI_HISM_RX_UPLOAD_RDY			(1<<1)
+/** Host Interrupt Status Mask bit : Command download ready */
+#define IF_SPI_HISM_CMD_DOWNLOAD_RDY			(1<<2)
+/** Host Interrupt Status Mask bit : Card event */
+#define IF_SPI_HISM_CARDEVENT				(1<<3)
+/** Host Interrupt Status Mask bit : Command upload ready */
+#define IF_SPI_HISM_CMD_UPLOAD_RDY			(1<<4)
+/** Host Interrupt Status Mask bit : I/O write FIFO overflow */
+#define IF_SPI_HISM_IO_WR_FIFO_OVERFLOW			(1<<5)
+/** Host Interrupt Status Mask bit : I/O read FIFO underflow */
+#define IF_SPI_HISM_IO_RD_FIFO_UNDERFLOW		(1<<6)
+/** Host Interrupt Status Mask bit : Data write FIFO overflow */
+#define IF_SPI_HISM_DATA_WR_FIFO_OVERFLOW		(1<<7)
+/** Host Interrupt Status Mask bit : Data write FIFO underflow */
+#define IF_SPI_HISM_DATA_RD_FIFO_UNDERFLOW		(1<<8)
+/** Host Interrupt Status Mask bit : Command write FIFO overflow */
+#define IF_SPI_HISM_CMD_WR_FIFO_OVERFLOW		(1<<9)
+/** Host Interrupt Status Mask bit : Command write FIFO underflow */
+#define IF_SPI_HISM_CMD_RD_FIFO_UNDERFLOW		(1<<10)
+
+/***************** IF_SPI_SPU_BUS_MODE_REG *****************/
+/* SCK edge on which the WLAN module outputs data on MISO */
+#define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_FALLING 0x8
+#define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING 0x0
+
+/* In a SPU read operation, there is a delay between writing the SPU
+ * register name and getting back data from the WLAN module.
+ * This can be specified in terms of nanoseconds or in terms of dummy
+ * clock cycles which the master must output before receiving a response. */
+#define IF_SPI_BUS_MODE_DELAY_METHOD_DUMMY_CLOCK 0x4
+#define IF_SPI_BUS_MODE_DELAY_METHOD_TIMED 0x0
+
+/* Some different modes of SPI operation */
+#define IF_SPI_BUS_MODE_8_BIT_ADDRESS_16_BIT_DATA 0x00
+#define IF_SPI_BUS_MODE_8_BIT_ADDRESS_32_BIT_DATA 0x01
+#define IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA 0x02
+#define IF_SPI_BUS_MODE_16_BIT_ADDRESS_32_BIT_DATA 0x03
+
+#endif
diff --git a/include/linux/spi/libertas_spi.h b/include/linux/spi/libertas_spi.h
new file mode 100644
index 000000000000..ada71b4f3788
--- /dev/null
+++ b/include/linux/spi/libertas_spi.h
@@ -0,0 +1,25 @@
+/*
+ * board-specific data for the libertas_spi driver.
+ *
+ * Copyright 2008 Analog Devices Inc.
+ *
+ * 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.
+ */
+#ifndef _LIBERTAS_SPI_H_
+#define _LIBERTAS_SPI_H_
+struct libertas_spi_platform_data {
+	/* There are two ways to read data from the WLAN module's SPI
+	 * interface. Setting 0 or 1 here controls which one is used.
+	 *
+	 * Usually you want to set use_dummy_writes = 1.
+	 * However, if that doesn't work or if you are using a slow SPI clock
+	 * speed, you may want to use 0 here. */
+	u16 use_dummy_writes;
+
+	/* GPIO number to use as chip select */
+	u16 gpio_cs;
+};
+#endif
-- 
cgit v1.2.3


From d03415e6771cd709b2b2ec64d3e6315cc3ebfa74 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Mon, 12 Jan 2009 14:24:40 +0200
Subject: nl80211: Fix documentation errors

Couple of '_ATTR's were missing and SEC_CHAN_OFFSET to CHANNEL_TYPE
rename was missed in couple of places.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index ee742bc9761e..4e7a7986a521 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -47,7 +47,7 @@
  * @NL80211_CMD_SET_WIPHY: set wiphy parameters, needs %NL80211_ATTR_WIPHY or
  *	%NL80211_ATTR_IFINDEX; can be used to set %NL80211_ATTR_WIPHY_NAME,
  *	%NL80211_ATTR_WIPHY_TXQ_PARAMS, %NL80211_ATTR_WIPHY_FREQ, and/or
- *	%NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET.
+ *	%NL80211_ATTR_WIPHY_CHANNEL_TYPE.
  * @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request
  *	or rename notification. Has attributes %NL80211_ATTR_WIPHY and
  *	%NL80211_ATTR_WIPHY_NAME.
@@ -84,7 +84,7 @@
  *	%NL80222_CMD_NEW_BEACON message)
  * @NL80211_CMD_SET_BEACON: set the beacon on an access point interface
  *	using the %NL80211_ATTR_BEACON_INTERVAL, %NL80211_ATTR_DTIM_PERIOD,
- *	%NL80211_BEACON_HEAD and %NL80211_BEACON_TAIL attributes.
+ *	%NL80211_ATTR_BEACON_HEAD and %NL80211_ATTR_BEACON_TAIL attributes.
  * @NL80211_CMD_NEW_BEACON: add a new beacon to an access point interface,
  *	parameters are like for %NL80211_CMD_SET_BEACON.
  * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it
@@ -362,7 +362,7 @@ enum nl80211_attrs {
 #define NL80211_ATTR_BSS_BASIC_RATES NL80211_ATTR_BSS_BASIC_RATES
 #define NL80211_ATTR_WIPHY_TXQ_PARAMS NL80211_ATTR_WIPHY_TXQ_PARAMS
 #define NL80211_ATTR_WIPHY_FREQ NL80211_ATTR_WIPHY_FREQ
-#define NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET
+#define NL80211_ATTR_WIPHY_CHANNEL_TYPE NL80211_ATTR_WIPHY_CHANNEL_TYPE
 
 #define NL80211_MAX_SUPP_RATES			32
 #define NL80211_MAX_SUPP_REG_RULES		32
-- 
cgit v1.2.3


From 9dbeb91a8b97e2892c04461e28d2bdd0198b719d Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 14 Jan 2009 20:17:08 +0100
Subject: ath9k: get EEPROM contents from platform data on AHB bus

On the AR913x SOCs we have to provide EEPROM contents via platform_data,
because accessing the flash via MMIO is not safe. Additionally different
boards may store the radio calibration data at different locations.

Changes-licensed-under: ISC

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Tested-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/ahb.c    | 27 ++++++++++++++++++++
 drivers/net/wireless/ath9k/core.h   |  1 +
 drivers/net/wireless/ath9k/eeprom.c | 51 +++----------------------------------
 drivers/net/wireless/ath9k/pci.c    | 18 +++++++++++++
 include/linux/ath9k_platform.h      | 28 ++++++++++++++++++++
 5 files changed, 77 insertions(+), 48 deletions(-)
 create mode 100644 include/linux/ath9k_platform.h

(limited to 'include')

diff --git a/drivers/net/wireless/ath9k/ahb.c b/drivers/net/wireless/ath9k/ahb.c
index 8cbd4c2a7fa0..7f2c3a09bcac 100644
--- a/drivers/net/wireless/ath9k/ahb.c
+++ b/drivers/net/wireless/ath9k/ahb.c
@@ -18,6 +18,7 @@
 
 #include <linux/nl80211.h>
 #include <linux/platform_device.h>
+#include <linux/ath9k_platform.h>
 #include "core.h"
 #include "reg.h"
 #include "hw.h"
@@ -33,9 +34,29 @@ static void ath_ahb_cleanup(struct ath_softc *sc)
 	iounmap(sc->mem);
 }
 
+static bool ath_ahb_eeprom_read(struct ath_hal *ah, u32 off, u16 *data)
+{
+	struct ath_softc *sc = ah->ah_sc;
+	struct platform_device *pdev = to_platform_device(sc->dev);
+	struct ath9k_platform_data *pdata;
+
+	pdata = (struct ath9k_platform_data *) pdev->dev.platform_data;
+	if (off >= (ARRAY_SIZE(pdata->eeprom_data))) {
+		DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
+			"%s: flash read failed, offset %08x is out of range\n",
+				__func__, off);
+		return false;
+	}
+
+	*data = pdata->eeprom_data[off];
+	return true;
+}
+
 static struct ath_bus_ops ath_ahb_bus_ops  = {
 	.read_cachesize = ath_ahb_read_cachesize,
 	.cleanup = ath_ahb_cleanup,
+
+	.eeprom_read = ath_ahb_eeprom_read,
 };
 
 static int ath_ahb_probe(struct platform_device *pdev)
@@ -48,6 +69,12 @@ static int ath_ahb_probe(struct platform_device *pdev)
 	int ret = 0;
 	struct ath_hal *ah;
 
+	if (!pdev->dev.platform_data) {
+		dev_err(&pdev->dev, "no platform data specified\n");
+		ret = -EINVAL;
+		goto err_out;
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (res == NULL) {
 		dev_err(&pdev->dev, "no memory resource found\n");
diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index c5dae11d6086..b687ae9c9e17 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -696,6 +696,7 @@ enum PROT_MODE {
 struct ath_bus_ops {
 	void		(*read_cachesize)(struct ath_softc *sc, int *csz);
 	void		(*cleanup)(struct ath_softc *sc);
+	bool		(*eeprom_read)(struct ath_hal *ah, u32 off, u16 *data);
 };
 
 struct ath_softc {
diff --git a/drivers/net/wireless/ath9k/eeprom.c b/drivers/net/wireless/ath9k/eeprom.c
index 1ef8b5a70e5b..50cb3883416a 100644
--- a/drivers/net/wireless/ath9k/eeprom.c
+++ b/drivers/net/wireless/ath9k/eeprom.c
@@ -91,53 +91,11 @@ static inline bool ath9k_hw_get_lower_upper_index(u8 target, u8 *pList,
 	return false;
 }
 
-static bool ath9k_hw_eeprom_read(struct ath_hal *ah, u32 off, u16 *data)
-{
-	(void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
-
-	if (!ath9k_hw_wait(ah,
-			   AR_EEPROM_STATUS_DATA,
-			   AR_EEPROM_STATUS_DATA_BUSY |
-			   AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0)) {
-		return false;
-	}
-
-	*data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
-		   AR_EEPROM_STATUS_DATA_VAL);
-
-	return true;
-}
-
-static int ath9k_hw_flash_map(struct ath_hal *ah)
-{
-	struct ath_hal_5416 *ahp = AH5416(ah);
-
-	ahp->ah_cal_mem = ioremap(AR5416_EEPROM_START_ADDR, AR5416_EEPROM_MAX);
-
-	if (!ahp->ah_cal_mem) {
-		DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-			"cannot remap eeprom region \n");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static bool ath9k_hw_flash_read(struct ath_hal *ah, u32 off, u16 *data)
-{
-	struct ath_hal_5416 *ahp = AH5416(ah);
-
-	*data = ioread16(ahp->ah_cal_mem + off);
-
-	return true;
-}
-
 static inline bool ath9k_hw_nvram_read(struct ath_hal *ah, u32 off, u16 *data)
 {
-	if (ath9k_hw_use_flash(ah))
-		return ath9k_hw_flash_read(ah, off, data);
-	else
-		return ath9k_hw_eeprom_read(ah, off, data);
+	struct ath_softc *sc = ah->ah_sc;
+
+	return sc->bus_ops->eeprom_read(ah, off, data);
 }
 
 static bool ath9k_hw_fill_4k_eeprom(struct ath_hal *ah)
@@ -2825,9 +2783,6 @@ int ath9k_hw_eeprom_attach(struct ath_hal *ah)
 	int status;
 	struct ath_hal_5416 *ahp = AH5416(ah);
 
-	if (ath9k_hw_use_flash(ah))
-		ath9k_hw_flash_map(ah);
-
 	if (AR_SREV_9285(ah))
 		ahp->ah_eep_map = EEP_MAP_4KBITS;
 	else
diff --git a/drivers/net/wireless/ath9k/pci.c b/drivers/net/wireless/ath9k/pci.c
index 4ff1caa9ba99..05612bf28360 100644
--- a/drivers/net/wireless/ath9k/pci.c
+++ b/drivers/net/wireless/ath9k/pci.c
@@ -58,9 +58,27 @@ static void ath_pci_cleanup(struct ath_softc *sc)
 	pci_disable_device(pdev);
 }
 
+static bool ath_pci_eeprom_read(struct ath_hal *ah, u32 off, u16 *data)
+{
+	(void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
+
+	if (!ath9k_hw_wait(ah,
+			   AR_EEPROM_STATUS_DATA,
+			   AR_EEPROM_STATUS_DATA_BUSY |
+			   AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0)) {
+		return false;
+	}
+
+	*data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
+		   AR_EEPROM_STATUS_DATA_VAL);
+
+	return true;
+}
+
 static struct ath_bus_ops ath_pci_bus_ops = {
 	.read_cachesize = ath_pci_read_cachesize,
 	.cleanup = ath_pci_cleanup,
+	.eeprom_read = ath_pci_eeprom_read,
 };
 
 static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
diff --git a/include/linux/ath9k_platform.h b/include/linux/ath9k_platform.h
new file mode 100644
index 000000000000..b847fc7b93f9
--- /dev/null
+++ b/include/linux/ath9k_platform.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2008 Atheros Communications Inc.
+ * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _LINUX_ATH9K_PLATFORM_H
+#define _LINUX_ATH9K_PLATFORM_H
+
+#define ATH9K_PLAT_EEP_MAX_WORDS	2048
+
+struct ath9k_platform_data {
+	u16 eeprom_data[ATH9K_PLAT_EEP_MAX_WORDS];
+};
+
+#endif /* _LINUX_ATH9K_PLATFORM_H */
-- 
cgit v1.2.3


From 9aed3cc124343d92be6697e9af3928bdfe8eb03e Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Tue, 13 Jan 2009 16:03:29 +0200
Subject: nl80211: New command for adding extra IE(s) into management frames

A new nl80211 command, NL80211_CMD_SET_MGMT_EXTRA_IE, can be used to
add arbitrary IE data into the end of management frames. The interface
allows extra IEs to be configured for each management frame subtype, but
only some of them (ProbeReq, ProbeResp, Auth, (Re)AssocReq, Deauth,
Disassoc) are currently accepted in mac80211 implementation.

This makes it easier to implement IEEE 802.11 extensions like WPS and
FT that add IE(s) into some management frames. In addition, this can
be useful for testing and experimentation purposes.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h    | 22 +++++++++++++
 include/net/cfg80211.h     | 26 +++++++++++++++
 net/mac80211/cfg.c         | 82 ++++++++++++++++++++++++++++++++++++++++++++++
 net/mac80211/ieee80211_i.h | 16 +++++++++
 net/mac80211/iface.c       |  7 ++++
 net/mac80211/mlme.c        | 52 +++++++++++++++++++++++++----
 net/wireless/nl80211.c     | 47 ++++++++++++++++++++++++++
 7 files changed, 246 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 4e7a7986a521..76aae3d8e97e 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -133,6 +133,14 @@
  * @NL80211_CMD_SET_MESH_PARAMS: Set mesh networking properties for the
  *      interface identified by %NL80211_ATTR_IFINDEX
  *
+ * @NL80211_CMD_SET_MGMT_EXTRA_IE: Set extra IEs for management frames. The
+ *	interface is identified with %NL80211_ATTR_IFINDEX and the management
+ *	frame subtype with %NL80211_ATTR_MGMT_SUBTYPE. The extra IE data to be
+ *	added to the end of the specified management frame is specified with
+ *	%NL80211_ATTR_IE. If the command succeeds, the requested data will be
+ *	added to all specified management frames generated by
+ *	kernel/firmware/driver.
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -178,6 +186,8 @@ enum nl80211_commands {
 	NL80211_CMD_GET_MESH_PARAMS,
 	NL80211_CMD_SET_MESH_PARAMS,
 
+	NL80211_CMD_SET_MGMT_EXTRA_IE,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -190,6 +200,7 @@ enum nl80211_commands {
  * here
  */
 #define NL80211_CMD_SET_BSS NL80211_CMD_SET_BSS
+#define NL80211_CMD_SET_MGMT_EXTRA_IE NL80211_CMD_SET_MGMT_EXTRA_IE
 
 /**
  * enum nl80211_attrs - nl80211 netlink attributes
@@ -284,6 +295,12 @@ enum nl80211_commands {
  *	supported interface types, each a flag attribute with the number
  *	of the interface mode.
  *
+ * @NL80211_ATTR_MGMT_SUBTYPE: Management frame subtype for
+ *	%NL80211_CMD_SET_MGMT_EXTRA_IE.
+ *
+ * @NL80211_ATTR_IE: Information element(s) data (used, e.g., with
+ *	%NL80211_CMD_SET_MGMT_EXTRA_IE).
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -348,6 +365,9 @@ enum nl80211_attrs {
 
 	NL80211_ATTR_KEY_DEFAULT_MGMT,
 
+	NL80211_ATTR_MGMT_SUBTYPE,
+	NL80211_ATTR_IE,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -363,6 +383,8 @@ enum nl80211_attrs {
 #define NL80211_ATTR_WIPHY_TXQ_PARAMS NL80211_ATTR_WIPHY_TXQ_PARAMS
 #define NL80211_ATTR_WIPHY_FREQ NL80211_ATTR_WIPHY_FREQ
 #define NL80211_ATTR_WIPHY_CHANNEL_TYPE NL80211_ATTR_WIPHY_CHANNEL_TYPE
+#define NL80211_ATTR_MGMT_SUBTYPE NL80211_ATTR_MGMT_SUBTYPE
+#define NL80211_ATTR_IE NL80211_ATTR_IE
 
 #define NL80211_MAX_SUPP_RATES			32
 #define NL80211_MAX_SUPP_REG_RULES		32
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index df78abc496f1..c7da88fb15b7 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -433,6 +433,26 @@ struct ieee80211_txq_params {
 	u8 aifs;
 };
 
+/**
+ * struct mgmt_extra_ie_params - Extra management frame IE parameters
+ *
+ * Used to add extra IE(s) into management frames. If the driver cannot add the
+ * requested data into all management frames of the specified subtype that are
+ * generated in kernel or firmware/hardware, it must reject the configuration
+ * call. The IE data buffer is added to the end of the specified management
+ * frame body after all other IEs. This addition is not applied to frames that
+ * are injected through a monitor interface.
+ *
+ * @subtype: Management frame subtype
+ * @ies: IE data buffer or %NULL to remove previous data
+ * @ies_len: Length of @ies in octets
+ */
+struct mgmt_extra_ie_params {
+	u8 subtype;
+	u8 *ies;
+	int ies_len;
+};
+
 /* from net/wireless.h */
 struct wiphy;
 
@@ -501,6 +521,8 @@ struct ieee80211_channel;
  * @set_txq_params: Set TX queue parameters
  *
  * @set_channel: Set channel
+ *
+ * @set_mgmt_extra_ie: Set extra IE data for management frames
  */
 struct cfg80211_ops {
 	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,
@@ -571,6 +593,10 @@ struct cfg80211_ops {
 	int	(*set_channel)(struct wiphy *wiphy,
 			       struct ieee80211_channel *chan,
 			       enum nl80211_channel_type channel_type);
+
+	int	(*set_mgmt_extra_ie)(struct wiphy *wiphy,
+				     struct net_device *dev,
+				     struct mgmt_extra_ie_params *params);
 };
 
 /* temporary wext handlers */
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 72c106915433..d1ac3ab2c515 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1175,6 +1175,87 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
 	return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 }
 
+static int set_mgmt_extra_ie_sta(struct ieee80211_if_sta *ifsta, u8 subtype,
+				 u8 *ies, size_t ies_len)
+{
+	switch (subtype) {
+	case IEEE80211_STYPE_PROBE_REQ >> 4:
+		kfree(ifsta->ie_probereq);
+		ifsta->ie_probereq = ies;
+		ifsta->ie_probereq_len = ies_len;
+		return 0;
+	case IEEE80211_STYPE_PROBE_RESP >> 4:
+		kfree(ifsta->ie_proberesp);
+		ifsta->ie_proberesp = ies;
+		ifsta->ie_proberesp_len = ies_len;
+		return 0;
+	case IEEE80211_STYPE_AUTH >> 4:
+		kfree(ifsta->ie_auth);
+		ifsta->ie_auth = ies;
+		ifsta->ie_auth_len = ies_len;
+		return 0;
+	case IEEE80211_STYPE_ASSOC_REQ >> 4:
+		kfree(ifsta->ie_assocreq);
+		ifsta->ie_assocreq = ies;
+		ifsta->ie_assocreq_len = ies_len;
+		return 0;
+	case IEEE80211_STYPE_REASSOC_REQ >> 4:
+		kfree(ifsta->ie_reassocreq);
+		ifsta->ie_reassocreq = ies;
+		ifsta->ie_reassocreq_len = ies_len;
+		return 0;
+	case IEEE80211_STYPE_DEAUTH >> 4:
+		kfree(ifsta->ie_deauth);
+		ifsta->ie_deauth = ies;
+		ifsta->ie_deauth_len = ies_len;
+		return 0;
+	case IEEE80211_STYPE_DISASSOC >> 4:
+		kfree(ifsta->ie_disassoc);
+		ifsta->ie_disassoc = ies;
+		ifsta->ie_disassoc_len = ies_len;
+		return 0;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static int ieee80211_set_mgmt_extra_ie(struct wiphy *wiphy,
+				       struct net_device *dev,
+				       struct mgmt_extra_ie_params *params)
+{
+	struct ieee80211_sub_if_data *sdata;
+	u8 *ies;
+	size_t ies_len;
+	int ret = -EOPNOTSUPP;
+
+	if (params->ies) {
+		ies = kmemdup(params->ies, params->ies_len, GFP_KERNEL);
+		if (ies == NULL)
+			return -ENOMEM;
+		ies_len = params->ies_len;
+	} else {
+		ies = NULL;
+		ies_len = 0;
+	}
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_ADHOC:
+		ret = set_mgmt_extra_ie_sta(&sdata->u.sta, params->subtype,
+					    ies, ies_len);
+		break;
+	default:
+		ret = -EOPNOTSUPP;
+		break;
+	}
+
+	if (ret)
+		kfree(ies);
+	return ret;
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -1204,4 +1285,5 @@ struct cfg80211_ops mac80211_config_ops = {
 	.change_bss = ieee80211_change_bss,
 	.set_txq_params = ieee80211_set_txq_params,
 	.set_channel = ieee80211_set_channel,
+	.set_mgmt_extra_ie = ieee80211_set_mgmt_extra_ie,
 };
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index c9ffadb55d36..5eafd3affe27 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -331,6 +331,22 @@ struct ieee80211_if_sta {
 	u32 supp_rates_bits[IEEE80211_NUM_BANDS];
 
 	int wmm_last_param_set;
+
+	/* Extra IE data for management frames */
+	u8 *ie_probereq;
+	size_t ie_probereq_len;
+	u8 *ie_proberesp;
+	size_t ie_proberesp_len;
+	u8 *ie_auth;
+	size_t ie_auth_len;
+	u8 *ie_assocreq;
+	size_t ie_assocreq_len;
+	u8 *ie_reassocreq;
+	size_t ie_reassocreq_len;
+	u8 *ie_deauth;
+	size_t ie_deauth_len;
+	u8 *ie_disassoc;
+	size_t ie_disassoc_len;
 };
 
 struct ieee80211_if_mesh {
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 5d5a029228be..8dc2c2188d92 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -632,6 +632,13 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 		kfree(sdata->u.sta.assocreq_ies);
 		kfree(sdata->u.sta.assocresp_ies);
 		kfree_skb(sdata->u.sta.probe_resp);
+		kfree(sdata->u.sta.ie_probereq);
+		kfree(sdata->u.sta.ie_proberesp);
+		kfree(sdata->u.sta.ie_auth);
+		kfree(sdata->u.sta.ie_assocreq);
+		kfree(sdata->u.sta.ie_reassocreq);
+		kfree(sdata->u.sta.ie_deauth);
+		kfree(sdata->u.sta.ie_disassoc);
 		break;
 	case NL80211_IFTYPE_WDS:
 	case NL80211_IFTYPE_AP_VLAN:
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index f0d42498c257..43da6227b37c 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -131,6 +131,12 @@ u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
 
 /* frame sending functions */
 
+static void add_extra_ies(struct sk_buff *skb, u8 *ies, size_t ies_len)
+{
+	if (ies)
+		memcpy(skb_put(skb, ies_len), ies, ies_len);
+}
+
 /* also used by scanning code */
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 			      u8 *ssid, size_t ssid_len)
@@ -142,7 +148,8 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 	u8 *pos, *supp_rates, *esupp_rates = NULL;
 	int i;
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
+			    sdata->u.sta.ie_probereq_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
 		       "request\n", sdata->dev->name);
@@ -189,6 +196,9 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 		*pos = rate->bitrate / 5;
 	}
 
+	add_extra_ies(skb, sdata->u.sta.ie_probereq,
+		      sdata->u.sta.ie_probereq_len);
+
 	ieee80211_tx_skb(sdata, skb, 0);
 }
 
@@ -202,7 +212,8 @@ static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_mgmt *mgmt;
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
-			    sizeof(*mgmt) + 6 + extra_len);
+			    sizeof(*mgmt) + 6 + extra_len +
+			    sdata->u.sta.ie_auth_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
 		       "frame\n", sdata->dev->name);
@@ -225,6 +236,7 @@ static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 	mgmt->u.auth.status_code = cpu_to_le16(0);
 	if (extra)
 		memcpy(skb_put(skb, extra_len), extra, extra_len);
+	add_extra_ies(skb, sdata->u.sta.ie_auth, sdata->u.sta.ie_auth_len);
 
 	ieee80211_tx_skb(sdata, skb, encrypt);
 }
@@ -235,17 +247,26 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *ies, *ht_ie;
+	u8 *pos, *ies, *ht_ie, *e_ies;
 	int i, len, count, rates_len, supp_rates_len;
 	u16 capab;
 	struct ieee80211_bss *bss;
 	int wmm = 0;
 	struct ieee80211_supported_band *sband;
 	u64 rates = 0;
+	size_t e_ies_len;
+
+	if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
+		e_ies = sdata->u.sta.ie_reassocreq;
+		e_ies_len = sdata->u.sta.ie_reassocreq_len;
+	} else {
+		e_ies = sdata->u.sta.ie_assocreq;
+		e_ies_len = sdata->u.sta.ie_assocreq_len;
+	}
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
 			    sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
-			    ifsta->ssid_len);
+			    ifsta->ssid_len + e_ies_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
 		       "frame\n", sdata->dev->name);
@@ -436,6 +457,8 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 		memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
 	}
 
+	add_extra_ies(skb, e_ies, e_ies_len);
+
 	kfree(ifsta->assocreq_ies);
 	ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
 	ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
@@ -453,8 +476,19 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
+	u8 *ies;
+	size_t ies_len;
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
+	if (stype == IEEE80211_STYPE_DEAUTH) {
+		ies = sdata->u.sta.ie_deauth;
+		ies_len = sdata->u.sta.ie_deauth_len;
+	} else {
+		ies = sdata->u.sta.ie_disassoc;
+		ies_len = sdata->u.sta.ie_disassoc_len;
+	}
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) +
+			    ies_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for "
 		       "deauth/disassoc frame\n", sdata->dev->name);
@@ -472,6 +506,8 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	/* u.deauth.reason_code == u.disassoc.reason_code */
 	mgmt->u.deauth.reason_code = cpu_to_le16(reason);
 
+	add_extra_ies(skb, ies, ies_len);
+
 	ieee80211_tx_skb(sdata, skb, ifsta->flags & IEEE80211_STA_MFP_ENABLED);
 }
 
@@ -1473,7 +1509,8 @@ static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_supported_band *sband;
 	union iwreq_data wrqu;
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400 +
+			    sdata->u.sta.ie_proberesp_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
 		       "response\n", sdata->dev->name);
@@ -1556,6 +1593,9 @@ static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		memcpy(pos, &bss->supp_rates[8], rates);
 	}
 
+	add_extra_ies(skb, sdata->u.sta.ie_proberesp,
+		      sdata->u.sta.ie_proberesp_len);
+
 	ifsta->probe_resp = skb;
 
 	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 123d3b160fad..09a5d0f1d6dc 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -105,6 +105,10 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
 
 	[NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
 					 .len = NL80211_HT_CAPABILITY_LEN },
+
+	[NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
+	[NL80211_ATTR_IE] = { .type = NLA_BINARY,
+			      .len = IEEE80211_MAX_DATA_LEN },
 };
 
 /* message building helper */
@@ -2149,6 +2153,43 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
 	return -EINVAL;
 }
 
+static int nl80211_set_mgmt_extra_ie(struct sk_buff *skb,
+				     struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	int err;
+	struct net_device *dev;
+	struct mgmt_extra_ie_params params;
+
+	memset(&params, 0, sizeof(params));
+
+	if (!info->attrs[NL80211_ATTR_MGMT_SUBTYPE])
+		return -EINVAL;
+	params.subtype = nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
+	if (params.subtype > 15)
+		return -EINVAL; /* FC Subtype field is 4 bits (0..15) */
+
+	if (info->attrs[NL80211_ATTR_IE]) {
+		params.ies = nla_data(info->attrs[NL80211_ATTR_IE]);
+		params.ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	}
+
+	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+	if (err)
+		return err;
+
+	if (drv->ops->set_mgmt_extra_ie) {
+		rtnl_lock();
+		err = drv->ops->set_mgmt_extra_ie(&drv->wiphy, dev, &params);
+		rtnl_unlock();
+	} else
+		err = -EOPNOTSUPP;
+
+	cfg80211_put_dev(drv);
+	dev_put(dev);
+	return err;
+}
+
 static struct genl_ops nl80211_ops[] = {
 	{
 		.cmd = NL80211_CMD_GET_WIPHY,
@@ -2310,6 +2351,12 @@ static struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_ADMIN_PERM,
 	},
+	{
+		.cmd = NL80211_CMD_SET_MGMT_EXTRA_IE,
+		.doit = nl80211_set_mgmt_extra_ie,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
 };
 
 /* multicast groups */
-- 
cgit v1.2.3


From 0378b3f1c49d48ed524eabda7e4340163d9483c9 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 19 Jan 2009 11:20:52 -0500
Subject: cfg80211: add PM hooks

This should help implement suspend/resume in mac80211, these
hooks will be run before the device is suspended and after it
resumes. Therefore, they can touch the hardware as much as
they want to.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h |  6 ++++++
 net/wireless/sysfs.c   | 30 ++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index c7da88fb15b7..f19c3e163663 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -472,6 +472,9 @@ struct ieee80211_channel;
  * wireless extensions but this is subject to reevaluation as soon as this
  * code is used more widely and we have a first user without wext.
  *
+ * @suspend: wiphy device needs to be suspended
+ * @resume: wiphy device needs to be resumed
+ *
  * @add_virtual_intf: create a new virtual interface with the given name,
  *	must set the struct wireless_dev's iftype.
  *
@@ -525,6 +528,9 @@ struct ieee80211_channel;
  * @set_mgmt_extra_ie: Set extra IE data for management frames
  */
 struct cfg80211_ops {
+	int	(*suspend)(struct wiphy *wiphy);
+	int	(*resume)(struct wiphy *wiphy);
+
 	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,
 				    enum nl80211_iftype type, u32 *flags,
 				    struct vif_params *params);
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 79a382877641..26a72b0797a0 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -55,6 +55,34 @@ static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
 }
 #endif
 
+static int wiphy_suspend(struct device *dev, pm_message_t state)
+{
+	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
+	int ret = 0;
+
+	if (rdev->ops->suspend) {
+		rtnl_lock();
+		ret = rdev->ops->suspend(&rdev->wiphy);
+		rtnl_unlock();
+	}
+
+	return ret;
+}
+
+static int wiphy_resume(struct device *dev)
+{
+	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
+	int ret = 0;
+
+	if (rdev->ops->resume) {
+		rtnl_lock();
+		ret = rdev->ops->resume(&rdev->wiphy);
+		rtnl_unlock();
+	}
+
+	return ret;
+}
+
 struct class ieee80211_class = {
 	.name = "ieee80211",
 	.owner = THIS_MODULE,
@@ -63,6 +91,8 @@ struct class ieee80211_class = {
 #ifdef CONFIG_HOTPLUG
 	.dev_uevent = wiphy_uevent,
 #endif
+	.suspend = wiphy_suspend,
+	.resume = wiphy_resume,
 };
 
 int wiphy_sysfs_init(void)
-- 
cgit v1.2.3


From f797eb7e2903571e9c0e7e5d64113f51209f8dc4 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Mon, 19 Jan 2009 18:48:46 +0200
Subject: mac80211: Fix MFP Association Comeback to use Timeout Interval IE

The separate Association Comeback Time IE was removed from IEEE 802.11w
and the Timeout Interval IE (from IEEE 802.11r) is used instead. The
editing on this is still somewhat incomplete in IEEE 802.11w/D7.0, but
still, the use of Timeout Interval IE is the expected mechanism.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/ieee80211.h  | 8 +++++++-
 net/mac80211/ieee80211_i.h | 4 ++--
 net/mac80211/mlme.c        | 5 +++--
 net/mac80211/util.c        | 6 +++---
 4 files changed, 15 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 7800e20f197f..b1bb817d1427 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1036,8 +1036,8 @@ enum ieee80211_eid {
 	WLAN_EID_HT_INFORMATION = 61,
 	/* 802.11i */
 	WLAN_EID_RSN = 48,
+	WLAN_EID_TIMEOUT_INTERVAL = 56,
 	WLAN_EID_MMIE = 76 /* 802.11w */,
-	WLAN_EID_ASSOC_COMEBACK_TIME = 77,
 	WLAN_EID_WPA = 221,
 	WLAN_EID_GENERIC = 221,
 	WLAN_EID_VENDOR_SPECIFIC = 221,
@@ -1126,6 +1126,12 @@ struct ieee80211_country_ie_triplet {
 	};
 } __attribute__ ((packed));
 
+enum ieee80211_timeout_interval_type {
+	WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
+	WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
+	WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
+};
+
 /* BACK action code */
 enum ieee80211_back_actioncode {
 	WLAN_ACTION_ADDBA_REQ = 0,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index faa2476a2451..a8c72742a8b1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -837,7 +837,7 @@ struct ieee802_11_elems {
 	u8 *country_elem;
 	u8 *pwr_constr_elem;
 	u8 *quiet_elem; 	/* first quite element */
-	u8 *assoc_comeback;
+	u8 *timeout_int;
 
 	/* length of them, respectively */
 	u8 ssid_len;
@@ -865,7 +865,7 @@ struct ieee802_11_elems {
 	u8 pwr_constr_elem_len;
 	u8 quiet_elem_len;
 	u8 num_of_quiet_elem;	/* can be more the one */
-	u8 assoc_comeback_len;
+	u8 timeout_int_len;
 };
 
 static inline struct ieee80211_local *hw_to_local(
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 43da6227b37c..b9e4b93089c4 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1317,9 +1317,10 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
 
 	if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY &&
-	    elems.assoc_comeback && elems.assoc_comeback_len == 4) {
+	    elems.timeout_int && elems.timeout_int_len == 5 &&
+	    elems.timeout_int[0] == WLAN_TIMEOUT_ASSOC_COMEBACK) {
 		u32 tu, ms;
-		tu = get_unaligned_le32(elems.assoc_comeback);
+		tu = get_unaligned_le32(elems.timeout_int + 1);
 		ms = tu * 1024 / 1000;
 		printk(KERN_DEBUG "%s: AP rejected association temporarily; "
 		       "comeback duration %u TU (%u ms)\n",
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 963e0473205c..3f559e3d0a7c 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -653,9 +653,9 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 			elems->pwr_constr_elem = pos;
 			elems->pwr_constr_elem_len = elen;
 			break;
-		case WLAN_EID_ASSOC_COMEBACK_TIME:
-			elems->assoc_comeback = pos;
-			elems->assoc_comeback_len = elen;
+		case WLAN_EID_TIMEOUT_INTERVAL:
+			elems->timeout_int = pos;
+			elems->timeout_int_len = elen;
 			break;
 		default:
 			break;
-- 
cgit v1.2.3


From 5f936f11613c32ca7f8ed5fa333bb38a4501deeb Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 21 Jan 2009 12:47:05 +0100
Subject: mac80211: constify ieee80211_if_conf.bssid

Then one place can be a static const.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/libertas_tf/cmd.c         | 2 +-
 drivers/net/wireless/libertas_tf/libertas_tf.h | 2 +-
 drivers/net/wireless/rt2x00/rt2x00config.c     | 2 +-
 drivers/net/wireless/rt2x00/rt2x00lib.h        | 2 +-
 include/net/mac80211.h                         | 2 +-
 net/mac80211/main.c                            | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/libertas_tf/cmd.c b/drivers/net/wireless/libertas_tf/cmd.c
index 3d3914c83b14..28790e03dc43 100644
--- a/drivers/net/wireless/libertas_tf/cmd.c
+++ b/drivers/net/wireless/libertas_tf/cmd.c
@@ -286,7 +286,7 @@ void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode)
 	lbtf_cmd_async(priv, CMD_802_11_SET_MODE, &cmd.hdr, sizeof(cmd));
 }
 
-void lbtf_set_bssid(struct lbtf_private *priv, bool activate, u8 *bssid)
+void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid)
 {
 	struct cmd_ds_set_bssid cmd;
 
diff --git a/drivers/net/wireless/libertas_tf/libertas_tf.h b/drivers/net/wireless/libertas_tf/libertas_tf.h
index 8995cd7c29bf..4cc42dd5a005 100644
--- a/drivers/net/wireless/libertas_tf/libertas_tf.h
+++ b/drivers/net/wireless/libertas_tf/libertas_tf.h
@@ -463,7 +463,7 @@ int lbtf_set_radio_control(struct lbtf_private *priv);
 int lbtf_update_hw_spec(struct lbtf_private *priv);
 int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv);
 void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode);
-void lbtf_set_bssid(struct lbtf_private *priv, bool activate, u8 *bssid);
+void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid);
 int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr);
 
 int lbtf_set_channel(struct lbtf_private *priv, u8 channel);
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index 6b3bb0f661d5..9c2f5517af2a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -32,7 +32,7 @@
 void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
 			   struct rt2x00_intf *intf,
 			   enum nl80211_iftype type,
-			   u8 *mac, u8 *bssid)
+			   const u8 *mac, const u8 *bssid)
 {
 	struct rt2x00intf_conf conf;
 	unsigned int flags = 0;
diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h
index daf0def915dd..34efe4653549 100644
--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -76,7 +76,7 @@ void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev);
 void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
 			   struct rt2x00_intf *intf,
 			   enum nl80211_iftype type,
-			   u8 *mac, u8 *bssid);
+			   const u8 *mac, const u8 *bssid);
 void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
 			  struct rt2x00_intf *intf,
 			  struct ieee80211_bss_conf *conf);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9a5869e9ecfa..ef42559694f1 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -643,7 +643,7 @@ enum ieee80211_if_conf_change {
  */
 struct ieee80211_if_conf {
 	u32 changed;
-	u8 *bssid;
+	const u8 *bssid;
 };
 
 /**
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index c78304db475e..6f0fe3564ca4 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -176,7 +176,7 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 	else if (sdata->vif.type == NL80211_IFTYPE_AP)
 		conf.bssid = sdata->dev->dev_addr;
 	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
-		u8 zero[ETH_ALEN] = { 0 };
+		static const u8 zero[ETH_ALEN] = { 0 };
 		conf.bssid = zero;
 	} else {
 		WARN_ON(1);
-- 
cgit v1.2.3


From 881d948c23442173a011f1adcfe4c95bf7f27515 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 21 Jan 2009 15:13:48 +0100
Subject: wireless: restrict to 32 legacy rates

Since the standards only define 12 legacy rates, 32 is certainly
a sane upper limit and we don't need to use u64 everywhere. Add
sanity checking that no more than 32 rates are registered and
change the variables to u32 throughout.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/b43/main.c       |  2 +-
 drivers/net/wireless/b43legacy/main.c |  2 +-
 drivers/net/wireless/p54/p54.h        |  2 +-
 drivers/net/wireless/rt2x00/rt2x00.h  |  2 +-
 include/net/mac80211.h                |  4 ++--
 include/net/wireless.h                |  2 +-
 net/mac80211/ieee80211_i.h            |  6 +++---
 net/mac80211/mesh.c                   |  2 +-
 net/mac80211/mesh.h                   |  2 +-
 net/mac80211/mesh_plink.c             |  6 +++---
 net/mac80211/mlme.c                   | 16 ++++++++--------
 net/mac80211/util.c                   |  4 ++--
 net/wireless/core.c                   | 12 +++++++++---
 net/wireless/util.c                   |  2 +-
 14 files changed, 35 insertions(+), 29 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 8bb6659c0b3f..675a73a98072 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3398,7 +3398,7 @@ out_unlock_mutex:
 	return err;
 }
 
-static void b43_update_basic_rates(struct b43_wldev *dev, u64 brates)
+static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates)
 {
 	struct ieee80211_supported_band *sband =
 		dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)];
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index fb996c27a19b..879edc786713 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -2650,7 +2650,7 @@ out_unlock_mutex:
 	return err;
 }
 
-static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u64 brates)
+static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates)
 {
 	struct ieee80211_supported_band *sband =
 		dev->wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ];
diff --git a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h
index 64492feca9b2..94c3acd1fcaf 100644
--- a/drivers/net/wireless/p54/p54.h
+++ b/drivers/net/wireless/p54/p54.h
@@ -144,7 +144,7 @@ struct p54_common {
 	unsigned int output_power;
 	u32 tsf_low32;
 	u32 tsf_high32;
-	u64 basic_rate_mask;
+	u32 basic_rate_mask;
 	u16 wakeup_timer;
 	u16 aid;
 	struct ieee80211_tx_queue_stats tx_stats[8];
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index cc56637e73b5..46918deceda1 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -396,7 +396,7 @@ struct rt2x00lib_erp {
 	int ack_timeout;
 	int ack_consume_time;
 
-	u64 basic_rates;
+	u32 basic_rates;
 
 	int slot_time;
 
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ef42559694f1..c76484009baa 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -207,7 +207,7 @@ struct ieee80211_bss_conf {
 	u16 beacon_int;
 	u16 assoc_capability;
 	u64 timestamp;
-	u64 basic_rates;
+	u32 basic_rates;
 	struct ieee80211_bss_ht_conf ht;
 };
 
@@ -761,7 +761,7 @@ enum set_key_cmd {
  *	sizeof(void *), size is determined in hw information.
  */
 struct ieee80211_sta {
-	u64 supp_rates[IEEE80211_NUM_BANDS];
+	u32 supp_rates[IEEE80211_NUM_BANDS];
 	u8 addr[ETH_ALEN];
 	u16 aid;
 	struct ieee80211_sta_ht_cap ht_cap;
diff --git a/include/net/wireless.h b/include/net/wireless.h
index 9e73aae40c5d..6c5b08204232 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -367,7 +367,7 @@ ieee80211_get_channel(struct wiphy *wiphy, int freq)
  */
 struct ieee80211_rate *
 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
-			    u64 basic_rates, int bitrate);
+			    u32 basic_rates, int bitrate);
 
 /**
  * regulatory_hint - driver hint to the wireless core a regulatory domain
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index a8c72742a8b1..70366efc792e 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -909,11 +909,11 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
 			    struct ieee80211_if_sta *ifsta);
 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
-					u8 *bssid, u8 *addr, u64 supp_rates);
+					u8 *bssid, u8 *addr, u32 supp_rates);
 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
-u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
+u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
 			    struct ieee802_11_elems *elems,
 			    enum ieee80211_band band);
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
@@ -1026,7 +1026,7 @@ void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 void ieee802_11_parse_elems(u8 *start, size_t len,
 			    struct ieee802_11_elems *elems);
 int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
-u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
+u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			      enum ieee80211_band band);
 
 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 82f568e94365..2d573f8470d0 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -476,7 +476,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct ieee802_11_elems elems;
 	struct ieee80211_channel *channel;
-	u64 supp_rates = 0;
+	u32 supp_rates = 0;
 	size_t baselen;
 	int freq;
 	enum ieee80211_band band = rx_status->band;
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index f1196f5c3efe..9e064ee98ee0 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -236,7 +236,7 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
 		struct ieee80211_mgmt *mgmt, size_t len);
 int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata);
 /* Mesh plinks */
-void mesh_neighbour_update(u8 *hw_addr, u64 rates,
+void mesh_neighbour_update(u8 *hw_addr, u32 rates,
 		struct ieee80211_sub_if_data *sdata, bool add);
 bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie);
 void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index c140a1b71a5e..a8bbdeca013a 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -93,7 +93,7 @@ static inline void mesh_plink_fsm_restart(struct sta_info *sta)
  *       on it in the lifecycle management section!
  */
 static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
-					 u8 *hw_addr, u64 rates)
+					 u8 *hw_addr, u32 rates)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
@@ -222,7 +222,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 	return 0;
 }
 
-void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct ieee80211_sub_if_data *sdata,
+void mesh_neighbour_update(u8 *hw_addr, u32 rates, struct ieee80211_sub_if_data *sdata,
 			   bool peer_accepting_plinks)
 {
 	struct ieee80211_local *local = sdata->local;
@@ -447,7 +447,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 		spin_lock_bh(&sta->lock);
 	} else if (!sta) {
 		/* ftype == PLINK_OPEN */
-		u64 rates;
+		u32 rates;
 		if (!mesh_plink_free_count(sdata)) {
 			mpl_dbg("Mesh plink error: no more free plinks\n");
 			rcu_read_unlock();
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index b9e4b93089c4..9852da54f5e7 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -73,7 +73,7 @@ static u8 *ieee80211_bss_get_ie(struct ieee80211_bss *bss, u8 ie)
 
 static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
 				      struct ieee80211_supported_band *sband,
-				      u64 *rates)
+				      u32 *rates)
 {
 	int i, j, count;
 	*rates = 0;
@@ -93,14 +93,14 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
 }
 
 /* also used by mesh code */
-u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
+u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
 			    struct ieee802_11_elems *elems,
 			    enum ieee80211_band band)
 {
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_rate *bitrates;
 	size_t num_rates;
-	u64 supp_rates;
+	u32 supp_rates;
 	int i, j;
 	sband = local->hw.wiphy->bands[band];
 
@@ -253,7 +253,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_bss *bss;
 	int wmm = 0;
 	struct ieee80211_supported_band *sband;
-	u64 rates = 0;
+	u32 rates = 0;
 	size_t e_ies_len;
 
 	if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
@@ -1282,7 +1282,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
 	struct sta_info *sta;
-	u64 rates, basic_rates;
+	u32 rates, basic_rates;
 	u16 capab_info, status_code, aid;
 	struct ieee802_11_elems elems;
 	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
@@ -1639,7 +1639,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	struct sta_info *sta;
 	struct ieee80211_channel *channel;
 	u64 beacon_timestamp, rx_timestamp;
-	u64 supp_rates = 0;
+	u32 supp_rates = 0;
 	enum ieee80211_band band = rx_status->band;
 
 	if (elems->ds_params && elems->ds_params_len == 1)
@@ -1660,7 +1660,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 
 		sta = sta_info_get(local, mgmt->sa);
 		if (sta) {
-			u64 prev_rates;
+			u32 prev_rates;
 
 			prev_rates = sta->sta.supp_rates[band];
 			/* make sure mandatory rates are always added */
@@ -2526,7 +2526,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
  * must be callable in atomic context.
  */
 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
-					u8 *bssid,u8 *addr, u64 supp_rates)
+					u8 *bssid,u8 *addr, u32 supp_rates)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 3f559e3d0a7c..ede96c4fea2e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -731,12 +731,12 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
 	return ret;
 }
 
-u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
+u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			      enum ieee80211_band band)
 {
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_rate *bitrates;
-	u64 mandatory_rates;
+	u32 mandatory_rates;
 	enum ieee80211_rate_flags mandatory_flag;
 	int i;
 
diff --git a/net/wireless/core.c b/net/wireless/core.c
index b96fc0c3f1c4..125226476089 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -273,10 +273,16 @@ int wiphy_register(struct wiphy *wiphy)
 
 		sband->band = band;
 
-		if (!sband->n_channels || !sband->n_bitrates) {
-			WARN_ON(1);
+		if (WARN_ON(!sband->n_channels || !sband->n_bitrates))
+			return -EINVAL;
+
+		/*
+		 * Since we use a u32 for rate bitmaps in
+		 * ieee80211_get_response_rate, we cannot
+		 * have more than 32 legacy rates.
+		 */
+		if (WARN_ON(sband->n_bitrates > 32))
 			return -EINVAL;
-		}
 
 		for (i = 0; i < sband->n_channels; i++) {
 			sband->channels[i].orig_flags =
diff --git a/net/wireless/util.c b/net/wireless/util.c
index e76cc28b0345..487cdd9bcffc 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -9,7 +9,7 @@
 
 struct ieee80211_rate *
 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
-			    u64 basic_rates, int bitrate)
+			    u32 basic_rates, int bitrate)
 {
 	struct ieee80211_rate *result = &sband->bitrates[0];
 	int i;
-- 
cgit v1.2.3


From 2134e7e724798cf8d54ae822afe235abb607d9b2 Mon Sep 17 00:00:00 2001
From: Sujith <Sujith.Manoharan@atheros.com>
Date: Thu, 22 Jan 2009 09:00:52 +0530
Subject: mac80211: Add documentation bits for mac80211_rate_control_flags

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c76484009baa..634c08de6acb 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -262,6 +262,26 @@ enum mac80211_tx_control_flags {
 	IEEE80211_TX_CTL_RATE_CTRL_PROBE	= BIT(12),
 };
 
+/**
+ * enum mac80211_rate_control_flags - per-rate flags set by the
+ *	Rate Control algorithm.
+ *
+ * These flags are set by the Rate control algorithm for each rate during tx,
+ * in the @flags member of struct ieee80211_tx_rate.
+ *
+ * @IEEE80211_TX_RC_USE_RTS_CTS: Use RTS/CTS exchange for this rate.
+ * @IEEE80211_TX_RC_USE_CTS_PROTECT: CTS-to-self protection is required.
+ *	This is set if the current BSS requires ERP protection.
+ * @IEEE80211_TX_RC_USE_SHORT_PREAMBLE: Use short preamble.
+ * @IEEE80211_TX_RC_MCS: HT rate.
+ * @IEEE80211_TX_RC_GREEN_FIELD: Indicates whether this rate should be used in
+ *	Greenfield mode.
+ * @IEEE80211_TX_RC_40_MHZ_WIDTH: Indicates if the Channel Width should be 40 MHz.
+ * @IEEE80211_TX_RC_DUP_DATA: The frame should be transmitted on both of the
+ *	adjacent 20 MHz channels, if the current channel type is
+ *	NL80211_CHAN_HT40MINUS or NL80211_CHAN_HT40PLUS.
+ * @IEEE80211_TX_RC_SHORT_GI: Short Guard interval should be used for this rate.
+ */
 enum mac80211_rate_control_flags {
 	IEEE80211_TX_RC_USE_RTS_CTS		= BIT(0),
 	IEEE80211_TX_RC_USE_CTS_PROTECT		= BIT(1),
-- 
cgit v1.2.3


From 078e1e60dd6c6b0d4bc8d58ccb80c008e8efc9ff Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 22 Jan 2009 18:07:31 +0100
Subject: mac80211: Add capability to enable/disable beaconing

This patch adds a flag to notify drivers to start and stop
beaconing when needed, for example, during a scan run. Based
on Sujith's first patch to do the same, but now disables
beaconing for all virtual interfaces while scanning, has a
separate change flag and tracks user-space requests.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h |  9 +++++++--
 net/mac80211/cfg.c     |  5 +++--
 net/mac80211/main.c    | 42 +++++++++++++++++++++++++++++++++++++++++-
 net/mac80211/mesh.c    |  3 ++-
 net/mac80211/mlme.c    |  3 ++-
 net/mac80211/scan.c    | 18 +++++++++++-------
 6 files changed, 66 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 634c08de6acb..35643c55827a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -646,10 +646,12 @@ struct ieee80211_if_init_conf {
  * @IEEE80211_IFCC_BSSID: The BSSID changed.
  * @IEEE80211_IFCC_BEACON: The beacon for this interface changed
  *	(currently AP and MESH only), use ieee80211_beacon_get().
+ * @IEEE80211_IFCC_BEACON_ENABLED: The enable_beacon value changed.
  */
 enum ieee80211_if_conf_change {
-	IEEE80211_IFCC_BSSID	= BIT(0),
-	IEEE80211_IFCC_BEACON	= BIT(1),
+	IEEE80211_IFCC_BSSID		= BIT(0),
+	IEEE80211_IFCC_BEACON		= BIT(1),
+	IEEE80211_IFCC_BEACON_ENABLED	= BIT(2),
 };
 
 /**
@@ -657,6 +659,8 @@ enum ieee80211_if_conf_change {
  *
  * @changed: parameters that have changed, see &enum ieee80211_if_conf_change.
  * @bssid: BSSID of the network we are associated to/creating.
+ * @enable_beacon: Indicates whether beacons can be sent.
+ *	This is valid only for AP/IBSS/MESH modes.
  *
  * This structure is passed to the config_interface() callback of
  * &struct ieee80211_hw.
@@ -664,6 +668,7 @@ enum ieee80211_if_conf_change {
 struct ieee80211_if_conf {
 	u32 changed;
 	const u8 *bssid;
+	bool enable_beacon;
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 3527de22cafb..a1a1344c5c4b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -523,7 +523,8 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 
 	kfree(old);
 
-	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
+					  IEEE80211_IFCC_BEACON_ENABLED);
 }
 
 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
@@ -583,7 +584,7 @@ static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 	synchronize_rcu();
 	kfree(old);
 
-	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON_ENABLED);
 }
 
 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 6f0fe3564ca4..8d5c19e4a1bc 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -168,7 +168,6 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 		return 0;
 
 	memset(&conf, 0, sizeof(conf));
-	conf.changed = changed;
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
 	    sdata->vif.type == NL80211_IFTYPE_ADHOC)
@@ -183,9 +182,50 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 		return -EINVAL;
 	}
 
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
+	case NL80211_IFTYPE_MESH_POINT:
+		break;
+	default:
+		/* do not warn to simplify caller in scan.c */
+		changed &= ~IEEE80211_IFCC_BEACON_ENABLED;
+		if (WARN_ON(changed & IEEE80211_IFCC_BEACON))
+			return -EINVAL;
+		changed &= ~IEEE80211_IFCC_BEACON;
+		break;
+	}
+
+	if (changed & IEEE80211_IFCC_BEACON_ENABLED) {
+		if (local->sw_scanning) {
+			conf.enable_beacon = false;
+		} else {
+			/*
+			 * Beacon should be enabled, but AP mode must
+			 * check whether there is a beacon configured.
+			 */
+			switch (sdata->vif.type) {
+			case NL80211_IFTYPE_AP:
+				conf.enable_beacon =
+					!!rcu_dereference(sdata->u.ap.beacon);
+				break;
+			case NL80211_IFTYPE_ADHOC:
+			case NL80211_IFTYPE_MESH_POINT:
+				conf.enable_beacon = true;
+				break;
+			default:
+				/* not reached */
+				WARN_ON(1);
+				break;
+			}
+		}
+	}
+
 	if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID)))
 		return -EINVAL;
 
+	conf.changed = changed;
+
 	return local->ops->config_interface(local_to_hw(local),
 					    &sdata->vif, &conf);
 }
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 2d573f8470d0..8a1fcaeee4f2 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -442,7 +442,8 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 
 	ifmsh->housekeeping = true;
 	queue_work(local->hw.workqueue, &ifmsh->work);
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
+				   IEEE80211_IFCC_BEACON_ENABLED);
 }
 
 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 9852da54f5e7..ec400479c5f6 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1599,7 +1599,8 @@ static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 
 	ifsta->probe_resp = skb;
 
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
+				   IEEE80211_IFCC_BEACON_ENABLED);
 
 
 	rates = 0;
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index a2caeed57f4e..8248d7b6ae82 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -20,6 +20,7 @@
 
 #include <linux/wireless.h>
 #include <linux/if_arp.h>
+#include <linux/rtnetlink.h>
 #include <net/mac80211.h>
 #include <net/iw_handler.h>
 
@@ -472,8 +473,8 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 	netif_addr_unlock(local->mdev);
 	netif_tx_unlock_bh(local->mdev);
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list) {
 		/* Tell AP we're back */
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
@@ -482,8 +483,10 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 			}
 		} else
 			netif_tx_wake_all_queues(sdata->dev);
+
+		ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON_ENABLED);
 	}
-	rcu_read_unlock();
+	mutex_unlock(&local->iflist_mtx);
 
  done:
 	ieee80211_mlme_notify_scan_completed(local);
@@ -491,7 +494,6 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(ieee80211_scan_completed);
 
-
 void ieee80211_scan_work(struct work_struct *work)
 {
 	struct ieee80211_local *local =
@@ -633,8 +635,10 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 
 	local->sw_scanning = true;
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON_ENABLED);
+
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
 				netif_tx_stop_all_queues(sdata->dev);
@@ -643,7 +647,7 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 		} else
 			netif_tx_stop_all_queues(sdata->dev);
 	}
-	rcu_read_unlock();
+	mutex_unlock(&local->iflist_mtx);
 
 	if (ssid) {
 		local->scan_ssid_len = ssid_len;
-- 
cgit v1.2.3


From 1fa25e413659f943dfec65da2abe713d566c7fdf Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 22 Jan 2009 15:05:44 -0800
Subject: cfg80211: add wiphy_apply_custom_regulatory()

This adds wiphy_apply_custom_regulatory() to be used by drivers
prior to wiphy registration to apply a custom regulatory domain.
This can be used by drivers that do not have a direct 1-1 mapping
between a regulatory domain and a country.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/wireless.h |  17 ++++++++
 net/wireless/reg.c     | 115 ++++++++++++++++++++++++++++++++++++++-----------
 2 files changed, 108 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/include/net/wireless.h b/include/net/wireless.h
index 6c5b08204232..c5538b923afb 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -401,4 +401,21 @@ extern void regulatory_hint(struct wiphy *wiphy, const char *alpha2);
 extern void regulatory_hint_11d(struct wiphy *wiphy,
 				u8 *country_ie,
 				u8 country_ie_len);
+
+/**
+ * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
+ * @wiphy: the wireless device we want to process the regulatory domain on
+ * @regd: the custom regulatory domain to use for this wiphy
+ *
+ * Drivers can sometimes have custom regulatory domains which do not apply
+ * to a specific country. Drivers can use this to apply such custom regulatory
+ * domains. This routine must be called prior to wiphy registration. The
+ * custom regulatory domain will be trusted completely and as such previous
+ * default channel settings will be disregarded. If no rule is found for a
+ * channel on the regulatory domain the channel will be disabled.
+ */
+extern void wiphy_apply_custom_regulatory(
+	struct wiphy *wiphy,
+	const struct ieee80211_regdomain *regd);
+
 #endif /* __NET_WIRELESS_H */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index b34fd84b3e2f..0d6059502b40 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -782,36 +782,18 @@ static u32 map_regdom_flags(u32 rd_flags)
 	return channel_flags;
 }
 
-/**
- * freq_reg_info - get regulatory information for the given frequency
- * @wiphy: the wiphy for which we want to process this rule for
- * @center_freq: Frequency in KHz for which we want regulatory information for
- * @bandwidth: the bandwidth requirement you have in KHz, if you do not have one
- * 	you can set this to 0. If this frequency is allowed we then set
- * 	this value to the maximum allowed bandwidth.
- * @reg_rule: the regulatory rule which we have for this frequency
- *
- * Use this function to get the regulatory rule for a specific frequency on
- * a given wireless device. If the device has a specific regulatory domain
- * it wants to follow we respect that unless a country IE has been received
- * and processed already.
- *
- * Returns 0 if it was able to find a valid regulatory rule which does
- * apply to the given center_freq otherwise it returns non-zero. It will
- * also return -ERANGE if we determine the given center_freq does not even have
- * a regulatory rule for a frequency range in the center_freq's band. See
- * freq_in_rule_band() for our current definition of a band -- this is purely
- * subjective and right now its 802.11 specific.
- */
-static int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
-			 const struct ieee80211_reg_rule **reg_rule)
+static int freq_reg_info_regd(struct wiphy *wiphy,
+			      u32 center_freq,
+			      u32 *bandwidth,
+			      const struct ieee80211_reg_rule **reg_rule,
+			      const struct ieee80211_regdomain *custom_regd)
 {
 	int i;
 	bool band_rule_found = false;
 	const struct ieee80211_regdomain *regd;
 	u32 max_bandwidth = 0;
 
-	regd = cfg80211_regdomain;
+	regd = custom_regd ? custom_regd : cfg80211_regdomain;
 
 	/* Follow the driver's regulatory domain, if present, unless a country
 	 * IE has been processed */
@@ -852,6 +834,34 @@ static int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
 	return !max_bandwidth;
 }
 
+/**
+ * freq_reg_info - get regulatory information for the given frequency
+ * @wiphy: the wiphy for which we want to process this rule for
+ * @center_freq: Frequency in KHz for which we want regulatory information for
+ * @bandwidth: the bandwidth requirement you have in KHz, if you do not have one
+ * 	you can set this to 0. If this frequency is allowed we then set
+ * 	this value to the maximum allowed bandwidth.
+ * @reg_rule: the regulatory rule which we have for this frequency
+ *
+ * Use this function to get the regulatory rule for a specific frequency on
+ * a given wireless device. If the device has a specific regulatory domain
+ * it wants to follow we respect that unless a country IE has been received
+ * and processed already.
+ *
+ * Returns 0 if it was able to find a valid regulatory rule which does
+ * apply to the given center_freq otherwise it returns non-zero. It will
+ * also return -ERANGE if we determine the given center_freq does not even have
+ * a regulatory rule for a frequency range in the center_freq's band. See
+ * freq_in_rule_band() for our current definition of a band -- this is purely
+ * subjective and right now its 802.11 specific.
+ */
+static int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
+			 const struct ieee80211_reg_rule **reg_rule)
+{
+	return freq_reg_info_regd(wiphy, center_freq,
+		bandwidth, reg_rule, NULL);
+}
+
 static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 			   unsigned int chan_idx)
 {
@@ -962,6 +972,63 @@ void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
 		wiphy->reg_notifier(wiphy, setby);
 }
 
+static void handle_channel_custom(struct wiphy *wiphy,
+				  enum ieee80211_band band,
+				  unsigned int chan_idx,
+				  const struct ieee80211_regdomain *regd)
+{
+	int r;
+	u32 max_bandwidth = 0;
+	const struct ieee80211_reg_rule *reg_rule = NULL;
+	const struct ieee80211_power_rule *power_rule = NULL;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_channel *chan;
+
+	sband = wiphy->bands[band];
+	BUG_ON(chan_idx >= sband->n_channels);
+	chan = &sband->channels[chan_idx];
+
+	r = freq_reg_info_regd(wiphy, MHZ_TO_KHZ(chan->center_freq),
+		&max_bandwidth, &reg_rule, regd);
+
+	if (r) {
+		chan->flags = IEEE80211_CHAN_DISABLED;
+		return;
+	}
+
+	power_rule = &reg_rule->power_rule;
+
+	chan->flags |= map_regdom_flags(reg_rule->flags);
+	chan->max_antenna_gain = (int) MBI_TO_DBI(power_rule->max_antenna_gain);
+	chan->max_bandwidth = KHZ_TO_MHZ(max_bandwidth);
+	chan->max_power = (int) MBM_TO_DBM(power_rule->max_eirp);
+}
+
+static void handle_band_custom(struct wiphy *wiphy, enum ieee80211_band band,
+			       const struct ieee80211_regdomain *regd)
+{
+	unsigned int i;
+	struct ieee80211_supported_band *sband;
+
+	BUG_ON(!wiphy->bands[band]);
+	sband = wiphy->bands[band];
+
+	for (i = 0; i < sband->n_channels; i++)
+		handle_channel_custom(wiphy, band, i, regd);
+}
+
+/* Used by drivers prior to wiphy registration */
+void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
+				   const struct ieee80211_regdomain *regd)
+{
+	enum ieee80211_band band;
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		if (wiphy->bands[band])
+			handle_band_custom(wiphy, band, regd);
+	}
+}
+EXPORT_SYMBOL(wiphy_apply_custom_regulatory);
+
 static int reg_copy_regd(const struct ieee80211_regdomain **dst_regd,
 			 const struct ieee80211_regdomain *src_regd)
 {
-- 
cgit v1.2.3


From 34f573473a659f8c2727d8d408e17b241900c28e Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 22 Jan 2009 15:05:45 -0800
Subject: cfg80211: export freq_reg_info()

This can be used by drivers on the reg_notifier()

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/wireless.h | 24 ++++++++++++++++++++++++
 net/wireless/reg.c     | 24 ++----------------------
 2 files changed, 26 insertions(+), 22 deletions(-)

(limited to 'include')

diff --git a/include/net/wireless.h b/include/net/wireless.h
index c5538b923afb..f68602eb4160 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -418,4 +418,28 @@ extern void wiphy_apply_custom_regulatory(
 	struct wiphy *wiphy,
 	const struct ieee80211_regdomain *regd);
 
+/**
+ * freq_reg_info - get regulatory information for the given frequency
+ * @wiphy: the wiphy for which we want to process this rule for
+ * @center_freq: Frequency in KHz for which we want regulatory information for
+ * @bandwidth: the bandwidth requirement you have in KHz, if you do not have one
+ * 	you can set this to 0. If this frequency is allowed we then set
+ * 	this value to the maximum allowed bandwidth.
+ * @reg_rule: the regulatory rule which we have for this frequency
+ *
+ * Use this function to get the regulatory rule for a specific frequency on
+ * a given wireless device. If the device has a specific regulatory domain
+ * it wants to follow we respect that unless a country IE has been received
+ * and processed already.
+ *
+ * Returns 0 if it was able to find a valid regulatory rule which does
+ * apply to the given center_freq otherwise it returns non-zero. It will
+ * also return -ERANGE if we determine the given center_freq does not even have
+ * a regulatory rule for a frequency range in the center_freq's band. See
+ * freq_in_rule_band() for our current definition of a band -- this is purely
+ * subjective and right now its 802.11 specific.
+ */
+extern int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
+			 const struct ieee80211_reg_rule **reg_rule);
+
 #endif /* __NET_WIRELESS_H */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 0d6059502b40..d663795d6944 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -833,29 +833,9 @@ static int freq_reg_info_regd(struct wiphy *wiphy,
 
 	return !max_bandwidth;
 }
+EXPORT_SYMBOL(freq_reg_info);
 
-/**
- * freq_reg_info - get regulatory information for the given frequency
- * @wiphy: the wiphy for which we want to process this rule for
- * @center_freq: Frequency in KHz for which we want regulatory information for
- * @bandwidth: the bandwidth requirement you have in KHz, if you do not have one
- * 	you can set this to 0. If this frequency is allowed we then set
- * 	this value to the maximum allowed bandwidth.
- * @reg_rule: the regulatory rule which we have for this frequency
- *
- * Use this function to get the regulatory rule for a specific frequency on
- * a given wireless device. If the device has a specific regulatory domain
- * it wants to follow we respect that unless a country IE has been received
- * and processed already.
- *
- * Returns 0 if it was able to find a valid regulatory rule which does
- * apply to the given center_freq otherwise it returns non-zero. It will
- * also return -ERANGE if we determine the given center_freq does not even have
- * a regulatory rule for a frequency range in the center_freq's band. See
- * freq_in_rule_band() for our current definition of a band -- this is purely
- * subjective and right now its 802.11 specific.
- */
-static int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
+int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
 			 const struct ieee80211_reg_rule **reg_rule)
 {
 	return freq_reg_info_regd(wiphy, center_freq,
-- 
cgit v1.2.3


From 2a44f911d8bac3e6c97a25cc612e4324dfbdfdc4 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 22 Jan 2009 15:05:49 -0800
Subject: cfg80211: rename fw_handles_regulatory to custom_regulatory

Drivers without firmware can also have custom regulatory maps
which do not map to a specific ISO / IEC alpha2 country code.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c     | 2 +-
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 2 +-
 include/net/wireless.h                      | 6 +++---
 net/wireless/reg.c                          | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index f24d3b40e8e4..9f284ebb6c28 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -811,7 +811,7 @@ int iwl_setup_mac(struct iwl_priv *priv)
 		BIT(NL80211_IFTYPE_STATION) |
 		BIT(NL80211_IFTYPE_ADHOC);
 
-	hw->wiphy->fw_handles_regulatory = true;
+	hw->wiphy->custom_regulatory = true;
 
 	/* Default value; 4 EDCA QOS priorities */
 	hw->queues = 4;
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index d520bfe2db99..de8c8d7ca0fe 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -7011,7 +7011,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 		BIT(NL80211_IFTYPE_STATION) |
 		BIT(NL80211_IFTYPE_ADHOC);
 
-	hw->wiphy->fw_handles_regulatory = true;
+	hw->wiphy->custom_regulatory = true;
 
 	/* 4 EDCA QOS priorities */
 	hw->queues = 4;
diff --git a/include/net/wireless.h b/include/net/wireless.h
index f68602eb4160..c3f6e462ec2d 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -181,8 +181,8 @@ struct ieee80211_supported_band {
  * struct wiphy - wireless hardware description
  * @idx: the wiphy index assigned to this item
  * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
- * @fw_handles_regulatory: tells us the firmware for this device
- * 	has its own regulatory solution and cannot identify the
+ * @custom_regulatory: tells us the driver for this device
+ * 	has its own custom regulatory domain and cannot identify the
  * 	ISO / IEC 3166 alpha2 it belongs to. When this is enabled
  * 	we will disregard the first regulatory hint (when the
  * 	initiator is %REGDOM_SET_BY_CORE).
@@ -201,7 +201,7 @@ struct wiphy {
 	/* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
 	u16 interface_modes;
 
-	bool fw_handles_regulatory;
+	bool custom_regulatory;
 
 	/* If multiple wiphys are registered and you're handed e.g.
 	 * a regular netdev with assigned ieee80211_ptr, you won't
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index c201abd38ad1..5db02a3d9c02 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -927,7 +927,7 @@ static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
 	if (!last_request)
 		return true;
 	if (setby == REGDOM_SET_BY_CORE &&
-		  wiphy->fw_handles_regulatory)
+		  wiphy->custom_regulatory)
 		return true;
 	return false;
 }
-- 
cgit v1.2.3


From 716f9392e2b84cacc18cc11f7427cb98adeb1c3d Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 22 Jan 2009 15:05:51 -0800
Subject: cfg80211: pass more detailed regulatory request information on
 reg_notifier()

Drivers may need more information than just who set the last regulatory domain,
as such lets just pass the last regulatory_request receipt. To do this we need
to move out to headers struct regulatory_request, and enum environment_cap. While
at it lets add documentation for enum environment_cap.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h | 45 +++++++++++++++++++++++++++++++++++++++++++++
 include/net/wireless.h |  3 ++-
 net/wireless/reg.c     | 34 +---------------------------------
 net/wireless/reg.h     |  7 -------
 4 files changed, 48 insertions(+), 41 deletions(-)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f19c3e163663..dd1fd51638fc 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -357,6 +357,51 @@ enum reg_set_by {
 	REGDOM_SET_BY_COUNTRY_IE,
 };
 
+/**
+ * enum environment_cap - Environment parsed from country IE
+ * @ENVIRON_ANY: indicates country IE applies to both indoor and
+ * 	outdoor operation.
+ * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation
+ * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation
+ */
+enum environment_cap {
+	ENVIRON_ANY,
+	ENVIRON_INDOOR,
+	ENVIRON_OUTDOOR,
+};
+
+/**
+ * struct regulatory_request - receipt of last regulatory request
+ *
+ * @wiphy: this is set if this request's initiator is
+ * 	%REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
+ * 	can be used by the wireless core to deal with conflicts
+ * 	and potentially inform users of which devices specifically
+ * 	cased the conflicts.
+ * @initiator: indicates who sent this request, could be any of
+ * 	of those set in reg_set_by, %REGDOM_SET_BY_*
+ * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
+ * 	regulatory domain. We have a few special codes:
+ * 	00 - World regulatory domain
+ * 	99 - built by driver but a specific alpha2 cannot be determined
+ * 	98 - result of an intersection between two regulatory domains
+ * @intersect: indicates whether the wireless core should intersect
+ * 	the requested regulatory domain with the presently set regulatory
+ * 	domain.
+ * @country_ie_checksum: checksum of the last processed and accepted
+ * 	country IE
+ * @country_ie_env: lets us know if the AP is telling us we are outdoor,
+ * 	indoor, or if it doesn't matter
+ */
+struct regulatory_request {
+	struct wiphy *wiphy;
+	enum reg_set_by initiator;
+	char alpha2[2];
+	bool intersect;
+	u32 country_ie_checksum;
+	enum environment_cap country_ie_env;
+};
+
 struct ieee80211_freq_range {
 	u32 start_freq_khz;
 	u32 end_freq_khz;
diff --git a/include/net/wireless.h b/include/net/wireless.h
index c3f6e462ec2d..9c19764a4849 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -213,7 +213,8 @@ struct wiphy {
 	struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
 
 	/* Lets us get back the wiphy on the callback */
-	int (*reg_notifier)(struct wiphy *wiphy, enum reg_set_by setby);
+	int (*reg_notifier)(struct wiphy *wiphy,
+			    struct regulatory_request *request);
 
 	/* fields below are read-only, assigned by cfg80211 */
 
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 81acb07f1d44..cad4daadba0d 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -42,38 +42,6 @@
 #include "core.h"
 #include "reg.h"
 
-/**
- * struct regulatory_request - receipt of last regulatory request
- *
- * @wiphy: this is set if this request's initiator is
- * 	%REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
- * 	can be used by the wireless core to deal with conflicts
- * 	and potentially inform users of which devices specifically
- * 	cased the conflicts.
- * @initiator: indicates who sent this request, could be any of
- * 	of those set in reg_set_by, %REGDOM_SET_BY_*
- * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
- * 	regulatory domain. We have a few special codes:
- * 	00 - World regulatory domain
- * 	99 - built by driver but a specific alpha2 cannot be determined
- * 	98 - result of an intersection between two regulatory domains
- * @intersect: indicates whether the wireless core should intersect
- * 	the requested regulatory domain with the presently set regulatory
- * 	domain.
- * @country_ie_checksum: checksum of the last processed and accepted
- * 	country IE
- * @country_ie_env: lets us know if the AP is telling us we are outdoor,
- * 	indoor, or if it doesn't matter
- */
-struct regulatory_request {
-	struct wiphy *wiphy;
-	enum reg_set_by initiator;
-	char alpha2[2];
-	bool intersect;
-	u32 country_ie_checksum;
-	enum environment_cap country_ie_env;
-};
-
 /* Receipt of information from last regulatory request */
 static struct regulatory_request *last_request;
 
@@ -951,7 +919,7 @@ void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
 			handle_band(wiphy, band);
 	}
 	if (wiphy->reg_notifier)
-		wiphy->reg_notifier(wiphy, setby);
+		wiphy->reg_notifier(wiphy, last_request);
 }
 
 static void handle_channel_custom(struct wiphy *wiphy,
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index a76ea3ff7cd6..eb1dd5bc9b27 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -11,13 +11,6 @@ void regulatory_exit(void);
 
 int set_regdom(const struct ieee80211_regdomain *rd);
 
-enum environment_cap {
-	ENVIRON_ANY,
-	ENVIRON_INDOOR,
-	ENVIRON_OUTDOOR,
-};
-
-
 /**
  * __regulatory_hint - hint to the wireless core a regulatory domain
  * @wiphy: if the hint comes from country information from an AP, this
-- 
cgit v1.2.3


From f976376de0d6a9697fb635369f12ae00251f4566 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 22 Jan 2009 15:05:52 -0800
Subject: cfg80211: Allow for strict regulatory settings

This allows drivers to request strict regulatory settings to
be applied to its devices. This is desirable for devices where
proper calibration and compliance can only be gauranteed for
for the device's programmed regulatory domain. Regulatory
domain settings will be ignored until the device's own
regulatory domain is properly configured. If no regulatory
domain is received only the world regulatory domain will be
applied -- if OLD_REG (default to "US") is not enabled. If
OLD_REG behaviour is not acceptable to drivers they must
update their wiphy with a custom reuglatory prior to wiphy
registration.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/wireless.h | 10 ++++++++++
 net/wireless/reg.c     | 28 +++++++++++++++++++++++++++-
 2 files changed, 37 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/net/wireless.h b/include/net/wireless.h
index 9c19764a4849..a42c1562d52b 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -186,6 +186,15 @@ struct ieee80211_supported_band {
  * 	ISO / IEC 3166 alpha2 it belongs to. When this is enabled
  * 	we will disregard the first regulatory hint (when the
  * 	initiator is %REGDOM_SET_BY_CORE).
+ * @strict_regulatory: tells us the driver for this device will ignore
+ * 	regulatory domain settings until it gets its own regulatory domain
+ * 	via its regulatory_hint(). After its gets its own regulatory domain
+ * 	it will only allow further regulatory domain settings to further
+ * 	enhance compliance. For example if channel 13 and 14 are disabled
+ * 	by this regulatory domain no user regulatory domain can enable these
+ * 	channels at a later time. This can be used for devices which do not
+ * 	have calibration information gauranteed for frequencies or settings
+ * 	outside of its regulatory domain.
  * @reg_notifier: the driver's regulatory notification callback
  * @regd: the driver's regulatory domain, if one was requested via
  * 	the regulatory_hint() API. This can be used by the driver
@@ -202,6 +211,7 @@ struct wiphy {
 	u16 interface_modes;
 
 	bool custom_regulatory;
+	bool strict_regulatory;
 
 	/* If multiple wiphys are registered and you're handed e.g.
 	 * a regular netdev with assigned ieee80211_ptr, you won't
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index cad4daadba0d..89e0d8b3cf1e 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -867,6 +867,22 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 
 	power_rule = &reg_rule->power_rule;
 
+	if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
+	    last_request->wiphy && last_request->wiphy == wiphy &&
+	    last_request->wiphy->strict_regulatory) {
+		/* This gaurantees the driver's requested regulatory domain
+		 * will always be used as a base for further regulatory
+		 * settings */
+		chan->flags = chan->orig_flags =
+			map_regdom_flags(reg_rule->flags);
+		chan->max_antenna_gain = chan->orig_mag =
+			(int) MBI_TO_DBI(power_rule->max_antenna_gain);
+		chan->max_bandwidth = KHZ_TO_MHZ(max_bandwidth);
+		chan->max_power = chan->orig_mpwr =
+			(int) MBM_TO_DBM(power_rule->max_eirp);
+		return;
+	}
+
 	chan->flags = flags | map_regdom_flags(reg_rule->flags);
 	chan->max_antenna_gain = min(chan->orig_mag,
 		(int) MBI_TO_DBI(power_rule->max_antenna_gain));
@@ -897,6 +913,11 @@ static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
 	if (setby == REGDOM_SET_BY_CORE &&
 		  wiphy->custom_regulatory)
 		return true;
+	/* wiphy->regd will be set once the device has its own
+	 * desired regulatory domain set */
+	if (wiphy->strict_regulatory && !wiphy->regd &&
+	    !is_world_regdom(last_request->alpha2))
+		return true;
 	return false;
 }
 
@@ -1155,10 +1176,15 @@ new_request:
 
 void regulatory_hint(struct wiphy *wiphy, const char *alpha2)
 {
+	int r;
 	BUG_ON(!alpha2);
 
 	mutex_lock(&cfg80211_drv_mutex);
-	__regulatory_hint(wiphy, REGDOM_SET_BY_DRIVER, alpha2, 0, ENVIRON_ANY);
+	r = __regulatory_hint(wiphy, REGDOM_SET_BY_DRIVER,
+		alpha2, 0, ENVIRON_ANY);
+	/* This is required so that the orig_* parameters are saved */
+	if (r == -EALREADY && wiphy->strict_regulatory)
+		wiphy_update_regulatory(wiphy, REGDOM_SET_BY_DRIVER);
 	mutex_unlock(&cfg80211_drv_mutex);
 }
 EXPORT_SYMBOL(regulatory_hint);
-- 
cgit v1.2.3


From 9a95371aa26e3cb9fb1340362912000088ff3c3e Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 22 Jan 2009 15:05:53 -0800
Subject: mac80211: allow mac80211 drivers to get to struct ieee80211_hw from
 wiphy

If a driver is given a wiphy and it wants to get to its private
mac80211 driver area it can use wiphy_to_ieee80211_hw() to get first
to its ieee80211_hw and then access the private structure via hw->priv. The
wiphy_priv() is already being used internally by mac80211 and drivers
should not use this. This can be helpful in a drivers reg_notifier().

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 13 +++++++++++++
 net/mac80211/util.c    |  9 +++++++++
 2 files changed, 22 insertions(+)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 35643c55827a..c1e8261e899e 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -989,6 +989,19 @@ struct ieee80211_hw {
 	u8 max_rate_tries;
 };
 
+/**
+ * wiphy_to_ieee80211_hw - return a mac80211 driver hw struct from a wiphy
+ *
+ * @wiphy: the &struct wiphy which we want to query
+ *
+ * mac80211 drivers can use this to get to their respective
+ * &struct ieee80211_hw. Drivers wishing to get to their own private
+ * structure can then access it via hw->priv. Note that mac802111 drivers should
+ * not use wiphy_priv() to try to get their private driver structure as this
+ * is already used internally by mac80211.
+ */
+struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy);
+
 /**
  * SET_IEEE80211_DEV - set device for 802.11 hardware
  *
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ede96c4fea2e..fc30f2940e1e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -41,6 +41,15 @@ const unsigned char rfc1042_header[] __aligned(2) =
 const unsigned char bridge_tunnel_header[] __aligned(2) =
 	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
 
+struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy)
+{
+	struct ieee80211_local *local;
+	BUG_ON(!wiphy);
+
+	local = wiphy_priv(wiphy);
+	return &local->hw;
+}
+EXPORT_SYMBOL(wiphy_to_ieee80211_hw);
 
 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
 			enum nl80211_iftype type)
-- 
cgit v1.2.3


From c771c9d8da1e8292ef8bf7fd4ce135dacc650130 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 23 Jan 2009 22:54:03 +0100
Subject: mac80211: add interface list lock

Using only the RTNL has a number of problems, most notably that
ieee80211_iterate_active_interfaces() and other interface list
traversals cannot be done from the internal workqueue because it
needs to be flushed under the RTNL.

This patch introduces a new mutex that protects the interface list
against modifications. A more detailed explanation is part of the
code change.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h     |  5 ++---
 net/mac80211/ieee80211_i.h |  2 ++
 net/mac80211/iface.c       | 31 +++++++++++++++++++++++++++++++
 net/mac80211/main.c        |  3 +++
 net/mac80211/util.c        |  4 ++--
 5 files changed, 40 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c1e8261e899e..8e65adf0a64c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -928,9 +928,8 @@ enum ieee80211_hw_flags {
  * @workqueue: single threaded workqueue available for driver use,
  *	allocated by mac80211 on registration and flushed when an
  *	interface is removed.
- *	NOTICE: All work performed on this workqueue should NEVER
- *	acquire the RTNL lock (i.e. Don't use the function
- *	ieee80211_iterate_active_interfaces())
+ *	NOTICE: All work performed on this workqueue must not
+ *	acquire the RTNL lock.
  *
  * @priv: pointer to private area that was allocated for driver use
  *	along with this structure.
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 927cbde8c19c..eaf3603862b7 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -643,7 +643,9 @@ struct ieee80211_local {
 	struct crypto_blkcipher *wep_rx_tfm;
 	u32 wep_iv;
 
+	/* see iface.c */
 	struct list_head interfaces;
+	struct mutex iflist_mtx;
 
 	/*
 	 * Key lock, protects sdata's key_list and sta_info's
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 8dc2c2188d92..00562a8b99cf 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -21,6 +21,23 @@
 #include "mesh.h"
 #include "led.h"
 
+/**
+ * DOC: Interface list locking
+ *
+ * The interface list in each struct ieee80211_local is protected
+ * three-fold:
+ *
+ * (1) modifications may only be done under the RTNL
+ * (2) modifications and readers are protected against each other by
+ *     the iflist_mtx.
+ * (3) modifications are done in an RCU manner so atomic readers
+ *     can traverse the list in RCU-safe blocks.
+ *
+ * As a consequence, reads (traversals) of the list can be protected
+ * by either the RTNL, the iflist_mtx or RCU.
+ */
+
+
 static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
 {
 	int meshhdrlen;
@@ -800,7 +817,9 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 					    params->mesh_id_len,
 					    params->mesh_id);
 
+	mutex_lock(&local->iflist_mtx);
 	list_add_tail_rcu(&sdata->list, &local->interfaces);
+	mutex_unlock(&local->iflist_mtx);
 
 	if (new_dev)
 		*new_dev = ndev;
@@ -816,7 +835,10 @@ void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata)
 {
 	ASSERT_RTNL();
 
+	mutex_lock(&sdata->local->iflist_mtx);
 	list_del_rcu(&sdata->list);
+	mutex_unlock(&sdata->local->iflist_mtx);
+
 	synchronize_rcu();
 	unregister_netdevice(sdata->dev);
 }
@@ -832,7 +854,16 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 	ASSERT_RTNL();
 
 	list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
+		/*
+		 * we cannot hold the iflist_mtx across unregister_netdevice,
+		 * but we only need to hold it for list modifications to lock
+		 * out readers since we're under the RTNL here as all other
+		 * writers.
+		 */
+		mutex_lock(&local->iflist_mtx);
 		list_del(&sdata->list);
+		mutex_unlock(&local->iflist_mtx);
+
 		unregister_netdevice(sdata->dev);
 	}
 }
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 210dfe3cf6c3..a109c06e8e4e 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -758,6 +758,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	local->hw.conf.radio_enabled = true;
 
 	INIT_LIST_HEAD(&local->interfaces);
+	mutex_init(&local->iflist_mtx);
 
 	spin_lock_init(&local->key_lock);
 
@@ -1008,6 +1009,8 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
+	mutex_destroy(&local->iflist_mtx);
+
 	wiphy_free(local->hw.wiphy);
 }
 EXPORT_SYMBOL(ieee80211_free_hw);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index fc30f2940e1e..73c7d7345abd 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -468,7 +468,7 @@ void ieee80211_iterate_active_interfaces(
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
 
-	rtnl_lock();
+	mutex_lock(&local->iflist_mtx);
 
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		switch (sdata->vif.type) {
@@ -489,7 +489,7 @@ void ieee80211_iterate_active_interfaces(
 				 &sdata->vif);
 	}
 
-	rtnl_unlock();
+	mutex_unlock(&local->iflist_mtx);
 }
 EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
 
-- 
cgit v1.2.3


From 3b5d665b51cda73ef1a774b515afd879a38e3674 Mon Sep 17 00:00:00 2001
From: Alina Friedrichsen <x-alina@gmx.net>
Date: Sat, 24 Jan 2009 07:09:59 +0100
Subject: mac80211: Generic TSF debugging

This patch enables low-level driver independent debugging of the TSF and remove the driver specific things of ath5k and ath9k from the debugfs.

Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath5k/base.c  | 10 +++++++
 drivers/net/wireless/ath5k/debug.c | 48 ---------------------------------
 drivers/net/wireless/ath5k/debug.h |  1 -
 drivers/net/wireless/ath9k/core.h  |  1 -
 drivers/net/wireless/ath9k/debug.c | 48 ---------------------------------
 drivers/net/wireless/ath9k/main.c  |  9 +++++++
 include/net/mac80211.h             |  7 ++++-
 net/mac80211/debugfs.c             | 55 +++++++++++++++++++++++++++++++++++---
 8 files changed, 77 insertions(+), 102 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index fa39f21c36c3..b3f41acb9065 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -239,6 +239,7 @@ static int ath5k_get_stats(struct ieee80211_hw *hw,
 static int ath5k_get_tx_stats(struct ieee80211_hw *hw,
 		struct ieee80211_tx_queue_stats *stats);
 static u64 ath5k_get_tsf(struct ieee80211_hw *hw);
+static void ath5k_set_tsf(struct ieee80211_hw *hw, u64 tsf);
 static void ath5k_reset_tsf(struct ieee80211_hw *hw);
 static int ath5k_beacon_update(struct ath5k_softc *sc,
 		struct sk_buff *skb);
@@ -261,6 +262,7 @@ static struct ieee80211_ops ath5k_hw_ops = {
 	.conf_tx 	= NULL,
 	.get_tx_stats 	= ath5k_get_tx_stats,
 	.get_tsf 	= ath5k_get_tsf,
+	.set_tsf 	= ath5k_set_tsf,
 	.reset_tsf 	= ath5k_reset_tsf,
 	.bss_info_changed = ath5k_bss_info_changed,
 };
@@ -3110,6 +3112,14 @@ ath5k_get_tsf(struct ieee80211_hw *hw)
 	return ath5k_hw_get_tsf64(sc->ah);
 }
 
+static void
+ath5k_set_tsf(struct ieee80211_hw *hw, u64 tsf)
+{
+	struct ath5k_softc *sc = hw->priv;
+
+	ath5k_hw_set_tsf64(sc->ah, tsf);
+}
+
 static void
 ath5k_reset_tsf(struct ieee80211_hw *hw)
 {
diff --git a/drivers/net/wireless/ath5k/debug.c b/drivers/net/wireless/ath5k/debug.c
index 129b72684daf..413ed689cd5f 100644
--- a/drivers/net/wireless/ath5k/debug.c
+++ b/drivers/net/wireless/ath5k/debug.c
@@ -193,50 +193,6 @@ static const struct file_operations fops_registers = {
 };
 
 
-/* debugfs: TSF */
-
-static ssize_t read_file_tsf(struct file *file, char __user *user_buf,
-				   size_t count, loff_t *ppos)
-{
-	struct ath5k_softc *sc = file->private_data;
-	char buf[100];
-	snprintf(buf, sizeof(buf), "0x%016llx\n",
-		 (unsigned long long)ath5k_hw_get_tsf64(sc->ah));
-	return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
-}
-
-static ssize_t write_file_tsf(struct file *file,
-				 const char __user *userbuf,
-				 size_t count, loff_t *ppos)
-{
-	struct ath5k_softc *sc = file->private_data;
-	char buf[21];
-	unsigned long long tsf;
-
-	if (copy_from_user(buf, userbuf, min(count, sizeof(buf) - 1)))
-		return -EFAULT;
-	buf[sizeof(buf) - 1] = '\0';
-
-	if (strncmp(buf, "reset", 5) == 0) {
-		ath5k_hw_reset_tsf(sc->ah);
-		printk(KERN_INFO "debugfs reset TSF\n");
-	} else {
-		tsf = simple_strtoul(buf, NULL, 0);
-		ath5k_hw_set_tsf64(sc->ah, tsf);
-		printk(KERN_INFO "debugfs set TSF to %#018llx\n", tsf);
-	}
-
-	return count;
-}
-
-static const struct file_operations fops_tsf = {
-	.read = read_file_tsf,
-	.write = write_file_tsf,
-	.open = ath5k_debugfs_open,
-	.owner = THIS_MODULE,
-};
-
-
 /* debugfs: beacons */
 
 static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
@@ -430,9 +386,6 @@ ath5k_debug_init_device(struct ath5k_softc *sc)
 	sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUGO,
 				sc->debug.debugfs_phydir, sc, &fops_registers);
 
-	sc->debug.debugfs_tsf = debugfs_create_file("tsf", S_IWUSR | S_IRUGO,
-				sc->debug.debugfs_phydir, sc, &fops_tsf);
-
 	sc->debug.debugfs_beacon = debugfs_create_file("beacon", S_IWUSR | S_IRUGO,
 				sc->debug.debugfs_phydir, sc, &fops_beacon);
 
@@ -451,7 +404,6 @@ ath5k_debug_finish_device(struct ath5k_softc *sc)
 {
 	debugfs_remove(sc->debug.debugfs_debug);
 	debugfs_remove(sc->debug.debugfs_registers);
-	debugfs_remove(sc->debug.debugfs_tsf);
 	debugfs_remove(sc->debug.debugfs_beacon);
 	debugfs_remove(sc->debug.debugfs_reset);
 	debugfs_remove(sc->debug.debugfs_phydir);
diff --git a/drivers/net/wireless/ath5k/debug.h b/drivers/net/wireless/ath5k/debug.h
index ffc529393306..66f69f04e55e 100644
--- a/drivers/net/wireless/ath5k/debug.h
+++ b/drivers/net/wireless/ath5k/debug.h
@@ -72,7 +72,6 @@ struct ath5k_dbg_info {
 	struct dentry		*debugfs_phydir;
 	struct dentry		*debugfs_debug;
 	struct dentry		*debugfs_registers;
-	struct dentry		*debugfs_tsf;
 	struct dentry		*debugfs_beacon;
 	struct dentry		*debugfs_reset;
 };
diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index acbd8881ef83..29251f8dabb0 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -141,7 +141,6 @@ struct ath9k_debug {
 	struct dentry *debugfs_phy;
 	struct dentry *debugfs_dma;
 	struct dentry *debugfs_interrupt;
-	struct dentry *debugfs_tsf;
 	struct ath_stats stats;
 };
 
diff --git a/drivers/net/wireless/ath9k/debug.c b/drivers/net/wireless/ath9k/debug.c
index 05e1f82cc7a1..1680164b4adb 100644
--- a/drivers/net/wireless/ath9k/debug.c
+++ b/drivers/net/wireless/ath9k/debug.c
@@ -223,48 +223,6 @@ static const struct file_operations fops_interrupt = {
 };
 
 
-static ssize_t read_file_tsf(struct file *file, char __user *user_buf,
-			     size_t count, loff_t *ppos)
-{
-	struct ath_softc *sc = file->private_data;
-	char buf[100];
-	snprintf(buf, sizeof(buf), "0x%016llx\n",
-		 (unsigned long long)ath9k_hw_gettsf64(sc->sc_ah));
-	return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
-}
-
-static ssize_t write_file_tsf(struct file *file,
-                              const char __user *user_buf,
-                              size_t count, loff_t *ppos)
-{
-	struct ath_softc *sc = file->private_data;
-	char buf[21];
-	unsigned long long tsf;
-
-	if (copy_from_user(buf, user_buf, min(count, sizeof(buf) - 1)))
-		return -EFAULT;
-	buf[sizeof(buf) - 1] = '\0';
-
-	if (strncmp(buf, "reset", 5) == 0) {
-		ath9k_hw_reset_tsf(sc->sc_ah);
-		printk(KERN_INFO "debugfs reset TSF\n");
-	} else {
-		tsf = simple_strtoul(buf, NULL, 0);
-		ath9k_hw_settsf64(sc->sc_ah, tsf);
-		printk(KERN_INFO "debugfs set TSF to %#018llx\n", tsf);
-	}
-
-	return count;
-}
-
-static const struct file_operations fops_tsf = {
-	.read = read_file_tsf,
-	.write = write_file_tsf,
-	.open = ath9k_debugfs_open,
-	.owner = THIS_MODULE
-};
-
-
 int ath9k_init_debug(struct ath_softc *sc)
 {
 	sc->sc_debug.debug_mask = ath9k_debug;
@@ -290,11 +248,6 @@ int ath9k_init_debug(struct ath_softc *sc)
 	if (!sc->sc_debug.debugfs_interrupt)
 		goto err;
 
-	sc->sc_debug.debugfs_tsf = debugfs_create_file("tsf", S_IRUGO,
-				       sc->sc_debug.debugfs_phy, sc, &fops_tsf);
-	if (!sc->sc_debug.debugfs_tsf)
-		goto err;
-
 	return 0;
 err:
 	ath9k_exit_debug(sc);
@@ -303,7 +256,6 @@ err:
 
 void ath9k_exit_debug(struct ath_softc *sc)
 {
-	debugfs_remove(sc->sc_debug.debugfs_tsf);
 	debugfs_remove(sc->sc_debug.debugfs_interrupt);
 	debugfs_remove(sc->sc_debug.debugfs_dma);
 	debugfs_remove(sc->sc_debug.debugfs_phy);
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 15a7f90bc84b..90e687b5a8b7 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -2451,6 +2451,14 @@ static u64 ath9k_get_tsf(struct ieee80211_hw *hw)
 	return tsf;
 }
 
+static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf)
+{
+	struct ath_softc *sc = hw->priv;
+	struct ath_hal *ah = sc->sc_ah;
+
+	ath9k_hw_settsf64(ah, tsf);
+}
+
 static void ath9k_reset_tsf(struct ieee80211_hw *hw)
 {
 	struct ath_softc *sc = hw->priv;
@@ -2514,6 +2522,7 @@ struct ieee80211_ops ath9k_ops = {
 	.bss_info_changed   = ath9k_bss_info_changed,
 	.set_key            = ath9k_set_key,
 	.get_tsf 	    = ath9k_get_tsf,
+	.set_tsf 	    = ath9k_set_tsf,
 	.reset_tsf 	    = ath9k_reset_tsf,
 	.ampdu_action       = ath9k_ampdu_action,
 };
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 8e65adf0a64c..e2144f0e8728 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1359,7 +1359,11 @@ enum ieee80211_ampdu_mlme_action {
  *	hw->ampdu_queues items.
  *
  * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
- *	this is only used for IBSS mode debugging and, as such, is not a
+ *	this is only used for IBSS mode BSSID merging and debugging. Is not a
+ *	required function. Must be atomic.
+ *
+ * @set_tsf: Set the TSF timer to the specified value in the firmware/hardware.
+ *      Currently, this is only used for IBSS mode debugging. Is not a
  *	required function. Must be atomic.
  *
  * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize
@@ -1421,6 +1425,7 @@ struct ieee80211_ops {
 	int (*get_tx_stats)(struct ieee80211_hw *hw,
 			    struct ieee80211_tx_queue_stats *stats);
 	u64 (*get_tsf)(struct ieee80211_hw *hw);
+	void (*set_tsf)(struct ieee80211_hw *hw, u64 tsf);
 	void (*reset_tsf)(struct ieee80211_hw *hw);
 	int (*tx_last_beacon)(struct ieee80211_hw *hw);
 	int (*ampdu_action)(struct ieee80211_hw *hw,
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 717d5484e1e5..e37f557de3f3 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -57,12 +57,61 @@ DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
 		      local->hw.conf.long_frame_max_tx_count);
 DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
 		      local->total_ps_buffered);
-DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
+DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
 		      local->wep_iv & 0xffffff);
 DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
 		      local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
-DEBUGFS_READONLY_FILE(tsf, 20, "%#018llx",
-                      (unsigned long long) (local->ops->get_tsf ? local->ops->get_tsf(local_to_hw(local)) : 0));
+
+static ssize_t tsf_read(struct file *file, char __user *user_buf,
+			     size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	u64 tsf = 0;
+	char buf[100];
+
+	if (local->ops->get_tsf)
+		tsf = local->ops->get_tsf(local_to_hw(local));
+
+	snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
+}
+
+static ssize_t tsf_write(struct file *file,
+                         const char __user *user_buf,
+                         size_t count, loff_t *ppos)
+{
+	struct ieee80211_local *local = file->private_data;
+	unsigned long long tsf;
+	char buf[100];
+	size_t len;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+	buf[len] = '\0';
+
+	if (strncmp(buf, "reset", 5) == 0) {
+		if (local->ops->reset_tsf) {
+			local->ops->reset_tsf(local_to_hw(local));
+			printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy));
+		}
+	} else {
+		tsf = simple_strtoul(buf, NULL, 0);
+		if (local->ops->set_tsf) {
+			local->ops->set_tsf(local_to_hw(local), tsf);
+			printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf);
+		}
+	}
+
+	return count;
+}
+
+static const struct file_operations tsf_ops = {
+	.read = tsf_read,
+	.write = tsf_write,
+	.open = mac80211_open_file_generic
+};
 
 /* statistics stuff */
 
-- 
cgit v1.2.3


From f677d7702d48b7b3dfcce3b2c0db601dbee0aa24 Mon Sep 17 00:00:00 2001
From: Tulio Magno Quites Machado Filho <tuliom@gmail.com>
Date: Sun, 25 Jan 2009 23:54:25 +0100
Subject: ath5k: support LED's on emachines E510 notebook

Add vendor ID for AMBIT and use it to set the ath5k LED gpio.

base.c:
Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath5k/base.c | 8 ++++++--
 include/linux/pci_ids.h           | 2 ++
 2 files changed, 8 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index b3f41acb9065..368db944f11f 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -2626,8 +2626,12 @@ ath5k_init_leds(struct ath5k_softc *sc)
 		sc->led_pin = 1;
 		sc->led_on = 1;  /* active high */
 	}
-	/* Pin 3 on Foxconn chips used in Acer Aspire One (0x105b:e008) */
-	if (pdev->subsystem_vendor == PCI_VENDOR_ID_FOXCONN) {
+	/*
+	 * Pin 3 on Foxconn chips used in Acer Aspire One (0x105b:e008) and
+	 * in emachines notebooks with AMBIT subsystem.
+	 */
+	if (pdev->subsystem_vendor == PCI_VENDOR_ID_FOXCONN ||
+	    pdev->subsystem_vendor == PCI_VENDOR_ID_AMBIT) {
 		__set_bit(ATH_STAT_LEDSOFT, sc->status);
 		sc->led_pin = 3;
 		sc->led_on = 0;  /* active low */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 5b7a48c1d616..b7697c934a49 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1967,6 +1967,8 @@
 
 #define PCI_VENDOR_ID_SAMSUNG		0x144d
 
+#define PCI_VENDOR_ID_AMBIT		0x1468
+
 #define PCI_VENDOR_ID_MYRICOM		0x14c1
 
 #define PCI_VENDOR_ID_TITAN		0x14D2
-- 
cgit v1.2.3


From 5d0d9be8ef456afc6c3fb5f8aad06ef19b704b05 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 29 Jan 2009 14:19:48 +0000
Subject: gro: Move common completion code into helpers

Currently VLAN still has a bit of common code handling the aftermath
of GRO that's shared with the common path.  This patch moves them
into shared helpers to reduce code duplication.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h |  3 ++
 net/8021q/vlan_core.c     | 39 +++---------------------
 net/core/dev.c            | 76 ++++++++++++++++++++++++++++++++---------------
 3 files changed, 59 insertions(+), 59 deletions(-)

(limited to 'include')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index dd8a35b3e8b2..20419508eec1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1375,12 +1375,15 @@ extern int		netif_receive_skb(struct sk_buff *skb);
 extern void		napi_gro_flush(struct napi_struct *napi);
 extern int		dev_gro_receive(struct napi_struct *napi,
 					struct sk_buff *skb);
+extern int		napi_skb_finish(int ret, struct sk_buff *skb);
 extern int		napi_gro_receive(struct napi_struct *napi,
 					 struct sk_buff *skb);
 extern void		napi_reuse_skb(struct napi_struct *napi,
 				       struct sk_buff *skb);
 extern struct sk_buff *	napi_fraginfo_skb(struct napi_struct *napi,
 					  struct napi_gro_fraginfo *info);
+extern int		napi_frags_finish(struct napi_struct *napi,
+					  struct sk_buff *skb, int ret);
 extern int		napi_gro_frags(struct napi_struct *napi,
 				       struct napi_gro_fraginfo *info);
 extern void		netif_nit_deliver(struct sk_buff *skb);
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index e9db889d6222..2eb057a74654 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -98,22 +98,7 @@ drop:
 int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
 		     unsigned int vlan_tci, struct sk_buff *skb)
 {
-	int err = NET_RX_SUCCESS;
-
-	switch (vlan_gro_common(napi, grp, vlan_tci, skb)) {
-	case -1:
-		return netif_receive_skb(skb);
-
-	case 2:
-		err = NET_RX_DROP;
-		/* fall through */
-
-	case 1:
-		kfree_skb(skb);
-		break;
-	}
-
-	return err;
+	return napi_skb_finish(vlan_gro_common(napi, grp, vlan_tci, skb), skb);
 }
 EXPORT_SYMBOL(vlan_gro_receive);
 
@@ -121,27 +106,11 @@ int vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp,
 		   unsigned int vlan_tci, struct napi_gro_fraginfo *info)
 {
 	struct sk_buff *skb = napi_fraginfo_skb(napi, info);
-	int err = NET_RX_DROP;
 
 	if (!skb)
-		goto out;
-
-	err = NET_RX_SUCCESS;
-
-	switch (vlan_gro_common(napi, grp, vlan_tci, skb)) {
-	case -1:
-		return netif_receive_skb(skb);
-
-	case 2:
-		err = NET_RX_DROP;
-		/* fall through */
-
-	case 1:
-		napi_reuse_skb(napi, skb);
-		break;
-	}
+		return NET_RX_DROP;
 
-out:
-	return err;
+	return napi_frags_finish(napi, skb,
+				 vlan_gro_common(napi, grp, vlan_tci, skb));
 }
 EXPORT_SYMBOL(vlan_gro_frags);
diff --git a/net/core/dev.c b/net/core/dev.c
index e61b95c11fc0..cd23ae15a1d5 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -135,6 +135,14 @@
 /* This should be increased if a protocol with a bigger head is added. */
 #define GRO_MAX_HEAD (MAX_HEADER + 128)
 
+enum {
+	GRO_MERGED,
+	GRO_MERGED_FREE,
+	GRO_HELD,
+	GRO_NORMAL,
+	GRO_DROP,
+};
+
 /*
  *	The list of packet types we will receive (as opposed to discard)
  *	and the routines to invoke.
@@ -2369,7 +2377,7 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	int count = 0;
 	int same_flow;
 	int mac_len;
-	int free;
+	int ret;
 
 	if (!(skb->dev->features & NETIF_F_GRO))
 		goto normal;
@@ -2412,7 +2420,7 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 		goto normal;
 
 	same_flow = NAPI_GRO_CB(skb)->same_flow;
-	free = NAPI_GRO_CB(skb)->free;
+	ret = NAPI_GRO_CB(skb)->free ? GRO_MERGED_FREE : GRO_MERGED;
 
 	if (pp) {
 		struct sk_buff *nskb = *pp;
@@ -2435,12 +2443,13 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	skb_shinfo(skb)->gso_size = skb->len;
 	skb->next = napi->gro_list;
 	napi->gro_list = skb;
+	ret = GRO_HELD;
 
 ok:
-	return free;
+	return ret;
 
 normal:
-	return -1;
+	return GRO_NORMAL;
 }
 EXPORT_SYMBOL(dev_gro_receive);
 
@@ -2456,18 +2465,30 @@ static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	return dev_gro_receive(napi, skb);
 }
 
-int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
+int napi_skb_finish(int ret, struct sk_buff *skb)
 {
-	switch (__napi_gro_receive(napi, skb)) {
-	case -1:
+	int err = NET_RX_SUCCESS;
+
+	switch (ret) {
+	case GRO_NORMAL:
 		return netif_receive_skb(skb);
 
-	case 1:
+	case GRO_DROP:
+		err = NET_RX_DROP;
+		/* fall through */
+
+	case GRO_MERGED_FREE:
 		kfree_skb(skb);
 		break;
 	}
 
-	return NET_RX_SUCCESS;
+	return err;
+}
+EXPORT_SYMBOL(napi_skb_finish);
+
+int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
+{
+	return napi_skb_finish(__napi_gro_receive(napi, skb), skb);
 }
 EXPORT_SYMBOL(napi_gro_receive);
 
@@ -2520,29 +2541,36 @@ out:
 }
 EXPORT_SYMBOL(napi_fraginfo_skb);
 
-int napi_gro_frags(struct napi_struct *napi, struct napi_gro_fraginfo *info)
+int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret)
 {
-	struct sk_buff *skb = napi_fraginfo_skb(napi, info);
-	int err = NET_RX_DROP;
-
-	if (!skb)
-		goto out;
+	int err = NET_RX_SUCCESS;
 
-	err = NET_RX_SUCCESS;
-
-	switch (__napi_gro_receive(napi, skb)) {
-	case -1:
+	switch (ret) {
+	case GRO_NORMAL:
 		return netif_receive_skb(skb);
 
-	case 0:
-		goto out;
-	}
+	case GRO_DROP:
+		err = NET_RX_DROP;
+		/* fall through */
 
-	napi_reuse_skb(napi, skb);
+	case GRO_MERGED_FREE:
+		napi_reuse_skb(napi, skb);
+		break;
+	}
 
-out:
 	return err;
 }
+EXPORT_SYMBOL(napi_frags_finish);
+
+int napi_gro_frags(struct napi_struct *napi, struct napi_gro_fraginfo *info)
+{
+	struct sk_buff *skb = napi_fraginfo_skb(napi, info);
+
+	if (!skb)
+		return NET_RX_DROP;
+
+	return napi_frags_finish(napi, skb, __napi_gro_receive(napi, skb));
+}
 EXPORT_SYMBOL(napi_gro_frags);
 
 static int process_backlog(struct napi_struct *napi, int quota)
-- 
cgit v1.2.3


From 86911732d3996a9da07914b280621450111bb6da Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 29 Jan 2009 14:19:50 +0000
Subject: gro: Avoid copying headers of unmerged packets

Unfortunately simplicity isn't always the best.  The fraginfo
interface turned out to be suboptimal.  The problem was quite
obvious.  For every packet, we have to copy the headers from
the frags structure into skb->head, even though for 99% of the
packets this part is immediately thrown away after the merge.

LRO didn't have this problem because it directly read the headers
from the frags structure.

This patch attempts to address this by creating an interface
that allows GRO to access the headers in the first frag without
having to copy it.  Because all drivers that use frags place the
headers in the first frag this optimisation should be enough.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 26 ++++++++++++++++++
 include/linux/skbuff.h    |  2 --
 net/8021q/vlan_core.c     |  2 ++
 net/core/dev.c            | 70 +++++++++++++++++++++++++++++++++++++++--------
 net/core/skbuff.c         | 23 ++++++++++------
 net/ipv4/af_inet.c        | 10 +++----
 net/ipv4/tcp.c            | 16 +++++------
 net/ipv4/tcp_ipv4.c       |  2 +-
 net/ipv6/af_inet6.c       | 30 +++++++++++++-------
 net/ipv6/tcp_ipv6.c       |  2 +-
 10 files changed, 137 insertions(+), 46 deletions(-)

(limited to 'include')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 20419508eec1..7a5057fbb7cd 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -984,6 +984,9 @@ void netif_napi_add(struct net_device *dev, struct napi_struct *napi,
 void netif_napi_del(struct napi_struct *napi);
 
 struct napi_gro_cb {
+	/* This indicates where we are processing relative to skb->data. */
+	int data_offset;
+
 	/* This is non-zero if the packet may be of the same flow. */
 	int same_flow;
 
@@ -1087,6 +1090,29 @@ extern int		dev_restart(struct net_device *dev);
 #ifdef CONFIG_NETPOLL_TRAP
 extern int		netpoll_trap(void);
 #endif
+extern void	      *skb_gro_header(struct sk_buff *skb, unsigned int hlen);
+extern int	       skb_gro_receive(struct sk_buff **head,
+				       struct sk_buff *skb);
+
+static inline unsigned int skb_gro_offset(const struct sk_buff *skb)
+{
+	return NAPI_GRO_CB(skb)->data_offset;
+}
+
+static inline unsigned int skb_gro_len(const struct sk_buff *skb)
+{
+	return skb->len - NAPI_GRO_CB(skb)->data_offset;
+}
+
+static inline void skb_gro_pull(struct sk_buff *skb, unsigned int len)
+{
+	NAPI_GRO_CB(skb)->data_offset += len;
+}
+
+static inline void skb_gro_reset_offset(struct sk_buff *skb)
+{
+	NAPI_GRO_CB(skb)->data_offset = 0;
+}
 
 static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
 				  unsigned short type,
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a2c2378a9c58..08670d017479 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1687,8 +1687,6 @@ extern int	       skb_shift(struct sk_buff *tgt, struct sk_buff *skb,
 				 int shiftlen);
 
 extern struct sk_buff *skb_segment(struct sk_buff *skb, int features);
-extern int	       skb_gro_receive(struct sk_buff **head,
-				       struct sk_buff *skb);
 
 static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
 				       int len, void *buffer)
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 2eb057a74654..378fa69d625a 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -98,6 +98,8 @@ drop:
 int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
 		     unsigned int vlan_tci, struct sk_buff *skb)
 {
+	skb_gro_reset_offset(skb);
+
 	return napi_skb_finish(vlan_gro_common(napi, grp, vlan_tci, skb), skb);
 }
 EXPORT_SYMBOL(vlan_gro_receive);
diff --git a/net/core/dev.c b/net/core/dev.c
index cd23ae15a1d5..df406dcf7482 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -215,6 +215,13 @@ static inline struct hlist_head *dev_index_hash(struct net *net, int ifindex)
 	return &net->dev_index_head[ifindex & ((1 << NETDEV_HASHBITS) - 1)];
 }
 
+static inline void *skb_gro_mac_header(struct sk_buff *skb)
+{
+	return skb_headlen(skb) ? skb_mac_header(skb) :
+	       page_address(skb_shinfo(skb)->frags[0].page) +
+	       skb_shinfo(skb)->frags[0].page_offset;
+}
+
 /* Device list insertion */
 static int list_netdevice(struct net_device *dev)
 {
@@ -2350,7 +2357,6 @@ static int napi_gro_complete(struct sk_buff *skb)
 
 out:
 	skb_shinfo(skb)->gso_size = 0;
-	__skb_push(skb, -skb_network_offset(skb));
 	return netif_receive_skb(skb);
 }
 
@@ -2368,6 +2374,25 @@ void napi_gro_flush(struct napi_struct *napi)
 }
 EXPORT_SYMBOL(napi_gro_flush);
 
+void *skb_gro_header(struct sk_buff *skb, unsigned int hlen)
+{
+	unsigned int offset = skb_gro_offset(skb);
+
+	hlen += offset;
+	if (hlen <= skb_headlen(skb))
+		return skb->data + offset;
+
+	if (unlikely(!skb_shinfo(skb)->nr_frags ||
+		     skb_shinfo(skb)->frags[0].size <=
+		     hlen - skb_headlen(skb) ||
+		     PageHighMem(skb_shinfo(skb)->frags[0].page)))
+		return pskb_may_pull(skb, hlen) ? skb->data + offset : NULL;
+
+	return page_address(skb_shinfo(skb)->frags[0].page) +
+	       skb_shinfo(skb)->frags[0].page_offset + offset;
+}
+EXPORT_SYMBOL(skb_gro_header);
+
 int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	struct sk_buff **pp = NULL;
@@ -2388,11 +2413,13 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	rcu_read_lock();
 	list_for_each_entry_rcu(ptype, head, list) {
 		struct sk_buff *p;
+		void *mac;
 
 		if (ptype->type != type || ptype->dev || !ptype->gro_receive)
 			continue;
 
-		skb_reset_network_header(skb);
+		skb_set_network_header(skb, skb_gro_offset(skb));
+		mac = skb_gro_mac_header(skb);
 		mac_len = skb->network_header - skb->mac_header;
 		skb->mac_len = mac_len;
 		NAPI_GRO_CB(skb)->same_flow = 0;
@@ -2406,8 +2433,7 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 				continue;
 
 			if (p->mac_len != mac_len ||
-			    memcmp(skb_mac_header(p), skb_mac_header(skb),
-				   mac_len))
+			    memcmp(skb_mac_header(p), mac, mac_len))
 				NAPI_GRO_CB(p)->same_flow = 0;
 		}
 
@@ -2434,13 +2460,11 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	if (same_flow)
 		goto ok;
 
-	if (NAPI_GRO_CB(skb)->flush || count >= MAX_GRO_SKBS) {
-		__skb_push(skb, -skb_network_offset(skb));
+	if (NAPI_GRO_CB(skb)->flush || count >= MAX_GRO_SKBS)
 		goto normal;
-	}
 
 	NAPI_GRO_CB(skb)->count = 1;
-	skb_shinfo(skb)->gso_size = skb->len;
+	skb_shinfo(skb)->gso_size = skb_gro_len(skb);
 	skb->next = napi->gro_list;
 	napi->gro_list = skb;
 	ret = GRO_HELD;
@@ -2488,6 +2512,8 @@ EXPORT_SYMBOL(napi_skb_finish);
 
 int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
+	skb_gro_reset_offset(skb);
+
 	return napi_skb_finish(__napi_gro_receive(napi, skb), skb);
 }
 EXPORT_SYMBOL(napi_gro_receive);
@@ -2506,6 +2532,7 @@ struct sk_buff *napi_fraginfo_skb(struct napi_struct *napi,
 {
 	struct net_device *dev = napi->dev;
 	struct sk_buff *skb = napi->skb;
+	struct ethhdr *eth;
 
 	napi->skb = NULL;
 
@@ -2525,13 +2552,23 @@ struct sk_buff *napi_fraginfo_skb(struct napi_struct *napi,
 	skb->len += info->len;
 	skb->truesize += info->len;
 
-	if (!pskb_may_pull(skb, ETH_HLEN)) {
+	skb_reset_mac_header(skb);
+	skb_gro_reset_offset(skb);
+
+	eth = skb_gro_header(skb, sizeof(*eth));
+	if (!eth) {
 		napi_reuse_skb(napi, skb);
 		skb = NULL;
 		goto out;
 	}
 
-	skb->protocol = eth_type_trans(skb, dev);
+	skb_gro_pull(skb, sizeof(*eth));
+
+	/*
+	 * This works because the only protocols we care about don't require
+	 * special handling.  We'll fix it up properly at the end.
+	 */
+	skb->protocol = eth->h_proto;
 
 	skb->ip_summed = info->ip_summed;
 	skb->csum = info->csum;
@@ -2544,10 +2581,21 @@ EXPORT_SYMBOL(napi_fraginfo_skb);
 int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret)
 {
 	int err = NET_RX_SUCCESS;
+	int may;
 
 	switch (ret) {
 	case GRO_NORMAL:
-		return netif_receive_skb(skb);
+	case GRO_HELD:
+		may = pskb_may_pull(skb, skb_gro_offset(skb));
+		BUG_ON(!may);
+
+		skb->protocol = eth_type_trans(skb, napi->dev);
+
+		if (ret == GRO_NORMAL)
+			return netif_receive_skb(skb);
+
+		skb_gro_pull(skb, -ETH_HLEN);
+		break;
 
 	case GRO_DROP:
 		err = NET_RX_DROP;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2e5f2ca3bdcd..f9f4065a7e9b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2584,17 +2584,21 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 	struct sk_buff *p = *head;
 	struct sk_buff *nskb;
 	unsigned int headroom;
-	unsigned int hlen = p->data - skb_mac_header(p);
-	unsigned int len = skb->len;
+	unsigned int len = skb_gro_len(skb);
 
-	if (hlen + p->len + len >= 65536)
+	if (p->len + len >= 65536)
 		return -E2BIG;
 
 	if (skb_shinfo(p)->frag_list)
 		goto merge;
-	else if (!skb_headlen(p) && !skb_headlen(skb) &&
-		 skb_shinfo(p)->nr_frags + skb_shinfo(skb)->nr_frags <
+	else if (skb_headlen(skb) <= skb_gro_offset(skb) &&
+		 skb_shinfo(p)->nr_frags + skb_shinfo(skb)->nr_frags <=
 		 MAX_SKB_FRAGS) {
+		skb_shinfo(skb)->frags[0].page_offset +=
+			skb_gro_offset(skb) - skb_headlen(skb);
+		skb_shinfo(skb)->frags[0].size -=
+			skb_gro_offset(skb) - skb_headlen(skb);
+
 		memcpy(skb_shinfo(p)->frags + skb_shinfo(p)->nr_frags,
 		       skb_shinfo(skb)->frags,
 		       skb_shinfo(skb)->nr_frags * sizeof(skb_frag_t));
@@ -2611,7 +2615,7 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 	}
 
 	headroom = skb_headroom(p);
-	nskb = netdev_alloc_skb(p->dev, headroom);
+	nskb = netdev_alloc_skb(p->dev, headroom + skb_gro_offset(p));
 	if (unlikely(!nskb))
 		return -ENOMEM;
 
@@ -2619,12 +2623,15 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 	nskb->mac_len = p->mac_len;
 
 	skb_reserve(nskb, headroom);
+	__skb_put(nskb, skb_gro_offset(p));
 
-	skb_set_mac_header(nskb, -hlen);
+	skb_set_mac_header(nskb, skb_mac_header(p) - p->data);
 	skb_set_network_header(nskb, skb_network_offset(p));
 	skb_set_transport_header(nskb, skb_transport_offset(p));
 
-	memcpy(skb_mac_header(nskb), skb_mac_header(p), hlen);
+	__skb_pull(p, skb_gro_offset(p));
+	memcpy(skb_mac_header(nskb), skb_mac_header(p),
+	       p->data - skb_mac_header(p));
 
 	*NAPI_GRO_CB(nskb) = *NAPI_GRO_CB(p);
 	skb_shinfo(nskb)->frag_list = p;
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 743f5542d65a..d6770f295d5b 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1253,10 +1253,10 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 	int proto;
 	int id;
 
-	if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
+	iph = skb_gro_header(skb, sizeof(*iph));
+	if (unlikely(!iph))
 		goto out;
 
-	iph = ip_hdr(skb);
 	proto = iph->protocol & (MAX_INET_PROTOS - 1);
 
 	rcu_read_lock();
@@ -1270,7 +1270,7 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 	if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
 		goto out_unlock;
 
-	flush = ntohs(iph->tot_len) != skb->len ||
+	flush = ntohs(iph->tot_len) != skb_gro_len(skb) ||
 		iph->frag_off != htons(IP_DF);
 	id = ntohs(iph->id);
 
@@ -1298,8 +1298,8 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 	}
 
 	NAPI_GRO_CB(skb)->flush |= flush;
-	__skb_pull(skb, sizeof(*iph));
-	skb_reset_transport_header(skb);
+	skb_gro_pull(skb, sizeof(*iph));
+	skb_set_transport_header(skb, skb_gro_offset(skb));
 
 	pp = ops->gro_receive(head, skb);
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0cd71b84e483..1cd608253940 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2481,19 +2481,19 @@ struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 	unsigned int mss = 1;
 	int flush = 1;
 
-	if (!pskb_may_pull(skb, sizeof(*th)))
+	th = skb_gro_header(skb, sizeof(*th));
+	if (unlikely(!th))
 		goto out;
 
-	th = tcp_hdr(skb);
 	thlen = th->doff * 4;
 	if (thlen < sizeof(*th))
 		goto out;
 
-	if (!pskb_may_pull(skb, thlen))
+	th = skb_gro_header(skb, thlen);
+	if (unlikely(!th))
 		goto out;
 
-	th = tcp_hdr(skb);
-	__skb_pull(skb, thlen);
+	skb_gro_pull(skb, thlen);
 
 	flags = tcp_flag_word(th);
 
@@ -2521,10 +2521,10 @@ found:
 	flush |= th->ack_seq != th2->ack_seq || th->window != th2->window;
 	flush |= memcmp(th + 1, th2 + 1, thlen - sizeof(*th));
 
-	total = p->len;
+	total = skb_gro_len(p);
 	mss = skb_shinfo(p)->gso_size;
 
-	flush |= skb->len > mss || skb->len <= 0;
+	flush |= skb_gro_len(skb) > mss || !skb_gro_len(skb);
 	flush |= ntohl(th2->seq) + total != ntohl(th->seq);
 
 	if (flush || skb_gro_receive(head, skb)) {
@@ -2537,7 +2537,7 @@ found:
 	tcp_flag_word(th2) |= flags & (TCP_FLAG_FIN | TCP_FLAG_PSH);
 
 out_check_final:
-	flush = skb->len < mss;
+	flush = skb_gro_len(skb) < mss;
 	flush |= flags & (TCP_FLAG_URG | TCP_FLAG_PSH | TCP_FLAG_RST |
 			  TCP_FLAG_SYN | TCP_FLAG_FIN);
 
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 19d7b429a262..f6b962f56ab4 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2355,7 +2355,7 @@ struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
-		if (!tcp_v4_check(skb->len, iph->saddr, iph->daddr,
+		if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr,
 				  skb->csum)) {
 			skb->ip_summed = CHECKSUM_UNNECESSARY;
 			break;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index c802bc1658a8..bd91eadcbe3f 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -799,24 +799,34 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
 	int proto;
 	__wsum csum;
 
-	if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
+	iph = skb_gro_header(skb, sizeof(*iph));
+	if (unlikely(!iph))
 		goto out;
 
-	iph = ipv6_hdr(skb);
-	__skb_pull(skb, sizeof(*iph));
+	skb_gro_pull(skb, sizeof(*iph));
+	skb_set_transport_header(skb, skb_gro_offset(skb));
 
-	flush += ntohs(iph->payload_len) != skb->len;
+	flush += ntohs(iph->payload_len) != skb_gro_len(skb);
 
 	rcu_read_lock();
-	proto = ipv6_gso_pull_exthdrs(skb, iph->nexthdr);
-	iph = ipv6_hdr(skb);
-	IPV6_GRO_CB(skb)->proto = proto;
+	proto = iph->nexthdr;
 	ops = rcu_dereference(inet6_protos[proto]);
-	if (!ops || !ops->gro_receive)
-		goto out_unlock;
+	if (!ops || !ops->gro_receive) {
+		__pskb_pull(skb, skb_gro_offset(skb));
+		proto = ipv6_gso_pull_exthdrs(skb, proto);
+		skb_gro_pull(skb, -skb_transport_offset(skb));
+		skb_reset_transport_header(skb);
+		__skb_push(skb, skb_gro_offset(skb));
+
+		if (!ops || !ops->gro_receive)
+			goto out_unlock;
+
+		iph = ipv6_hdr(skb);
+	}
+
+	IPV6_GRO_CB(skb)->proto = proto;
 
 	flush--;
-	skb_reset_transport_header(skb);
 	nlen = skb_network_header_len(skb);
 
 	for (p = *head; p; p = p->next) {
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index e5b85d45bee8..00f1269e11e9 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -948,7 +948,7 @@ struct sk_buff **tcp6_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
-		if (!tcp_v6_check(skb->len, &iph->saddr, &iph->daddr,
+		if (!tcp_v6_check(skb_gro_len(skb), &iph->saddr, &iph->daddr,
 				  skb->csum)) {
 			skb->ip_summed = CHECKSUM_UNNECESSARY;
 			break;
-- 
cgit v1.2.3


From d23f028a4ddce8b783c212bfe911d1d307ff3617 Mon Sep 17 00:00:00 2001
From: Steve Glendinning <steve.glendinning@smsc.com>
Date: Tue, 27 Jan 2009 06:51:11 +0000
Subject: smsc911x: add external phy detection overrides

On LAN9115/LAN9117/LAN9215/LAN9217, external phys are supported.  These
are usually indicated by a hardware strap which sets an "external PHY
detected" bit in the HW_CFG register.

In some cases it is desirable to override this hardware strap and force
use of either the internal phy or an external PHY.  This patch adds
SMSC911X_FORCE_INTERNAL_PHY and SMSC911X_FORCE_EXTERNAL_PHY flags so a
platform can indicate this preference via its platform_data.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/smsc911x.c   | 75 ++++++++++++++++++++++++------------------------
 include/linux/smsc911x.h |  2 ++
 2 files changed, 40 insertions(+), 37 deletions(-)

(limited to 'include')

diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index 6aa2b165de6a..27d2d7c45519 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -368,48 +368,53 @@ out:
 	return reg;
 }
 
-/* Autodetects and initialises external phy for SMSC9115 and SMSC9117 flavors.
- * If something goes wrong, returns -ENODEV to revert back to internal phy.
- * Performed at initialisation only, so interrupts are enabled */
-static int smsc911x_phy_initialise_external(struct smsc911x_data *pdata)
+/* Switch to external phy. Assumes tx and rx are stopped. */
+static void smsc911x_phy_enable_external(struct smsc911x_data *pdata)
 {
 	unsigned int hwcfg = smsc911x_reg_read(pdata, HW_CFG);
 
-	/* External phy is requested, supported, and detected */
-	if (hwcfg & HW_CFG_EXT_PHY_DET_) {
+	/* Disable phy clocks to the MAC */
+	hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
+	hwcfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
+	smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+	udelay(10);	/* Enough time for clocks to stop */
 
-		/* Switch to external phy. Assuming tx and rx are stopped
-		 * because smsc911x_phy_initialise is called before
-		 * smsc911x_rx_initialise and tx_initialise. */
+	/* Switch to external phy */
+	hwcfg |= HW_CFG_EXT_PHY_EN_;
+	smsc911x_reg_write(pdata, HW_CFG, hwcfg);
 
-		/* Disable phy clocks to the MAC */
-		hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
-		hwcfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
-		smsc911x_reg_write(pdata, HW_CFG, hwcfg);
-		udelay(10);	/* Enough time for clocks to stop */
+	/* Enable phy clocks to the MAC */
+	hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
+	hwcfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
+	smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+	udelay(10);	/* Enough time for clocks to restart */
 
-		/* Switch to external phy */
-		hwcfg |= HW_CFG_EXT_PHY_EN_;
-		smsc911x_reg_write(pdata, HW_CFG, hwcfg);
-
-		/* Enable phy clocks to the MAC */
-		hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
-		hwcfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
-		smsc911x_reg_write(pdata, HW_CFG, hwcfg);
-		udelay(10);	/* Enough time for clocks to restart */
+	hwcfg |= HW_CFG_SMI_SEL_;
+	smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+}
 
-		hwcfg |= HW_CFG_SMI_SEL_;
-		smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+/* Autodetects and enables external phy if present on supported chips.
+ * autodetection can be overridden by specifying SMSC911X_FORCE_INTERNAL_PHY
+ * or SMSC911X_FORCE_EXTERNAL_PHY in the platform_data flags. */
+static void smsc911x_phy_initialise_external(struct smsc911x_data *pdata)
+{
+	unsigned int hwcfg = smsc911x_reg_read(pdata, HW_CFG);
 
-		SMSC_TRACE(HW, "Successfully switched to external PHY");
+	if (pdata->config.flags & SMSC911X_FORCE_INTERNAL_PHY) {
+		SMSC_TRACE(HW, "Forcing internal PHY");
+		pdata->using_extphy = 0;
+	} else if (pdata->config.flags & SMSC911X_FORCE_EXTERNAL_PHY) {
+		SMSC_TRACE(HW, "Forcing external PHY");
+		smsc911x_phy_enable_external(pdata);
+		pdata->using_extphy = 1;
+	} else if (hwcfg & HW_CFG_EXT_PHY_DET_) {
+		SMSC_TRACE(HW, "HW_CFG EXT_PHY_DET set, using external PHY");
+		smsc911x_phy_enable_external(pdata);
 		pdata->using_extphy = 1;
 	} else {
-		SMSC_WARNING(HW, "No external PHY detected, "
-			"Using internal PHY instead.");
-		/* Use internal phy */
-		return -ENODEV;
+		SMSC_TRACE(HW, "HW_CFG EXT_PHY_DET clear, using internal PHY");
+		pdata->using_extphy = 0;
 	}
-	return 0;
 }
 
 /* Fetches a tx status out of the status fifo */
@@ -825,22 +830,18 @@ static int __devinit smsc911x_mii_init(struct platform_device *pdev,
 
 	pdata->mii_bus->parent = &pdev->dev;
 
-	pdata->using_extphy = 0;
-
 	switch (pdata->idrev & 0xFFFF0000) {
 	case 0x01170000:
 	case 0x01150000:
 	case 0x117A0000:
 	case 0x115A0000:
 		/* External PHY supported, try to autodetect */
-		if (smsc911x_phy_initialise_external(pdata) < 0) {
-			SMSC_TRACE(HW, "No external PHY detected, "
-				"using internal PHY");
-		}
+		smsc911x_phy_initialise_external(pdata);
 		break;
 	default:
 		SMSC_TRACE(HW, "External PHY is not supported, "
 			"using internal PHY");
+		pdata->using_extphy = 0;
 		break;
 	}
 
diff --git a/include/linux/smsc911x.h b/include/linux/smsc911x.h
index 1cbf0313adde..170c76b8f7a6 100644
--- a/include/linux/smsc911x.h
+++ b/include/linux/smsc911x.h
@@ -43,5 +43,7 @@ struct smsc911x_platform_config {
 /* Constants for flags */
 #define SMSC911X_USE_16BIT 			(BIT(0))
 #define SMSC911X_USE_32BIT 			(BIT(1))
+#define SMSC911X_FORCE_INTERNAL_PHY		(BIT(2))
+#define SMSC911X_FORCE_EXTERNAL_PHY 		(BIT(3))
 
 #endif /* __LINUX_SMSC911X_H__ */
-- 
cgit v1.2.3


From 31f4574774e98aa275aeeee94f41ce042285ed8e Mon Sep 17 00:00:00 2001
From: Steve Glendinning <steve.glendinning@smsc.com>
Date: Tue, 27 Jan 2009 06:51:12 +0000
Subject: smsc911x: allow mac address to be saved before device reset

Some platforms (for example pcm037) do not have an EEPROM fitted,
instead storing their mac address somewhere else.  The bootloader
fetches this and configures the ethernet adapter before the kernel is
started.

This patch allows a platform to indicate to the driver via the
SMSC911X_SAVE_MAC_ADDRESS flag that the mac address has already been
configured via such a mechanism, and should be saved before resetting
the chip.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/smsc911x.c   | 30 ++++++++++++++++++++++--------
 include/linux/smsc911x.h |  1 +
 2 files changed, 23 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index 27d2d7c45519..6e175e5555a1 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -1742,6 +1742,21 @@ static const struct net_device_ops smsc911x_netdev_ops = {
 #endif
 };
 
+/* copies the current mac address from hardware to dev->dev_addr */
+static void __devinit smsc911x_read_mac_address(struct net_device *dev)
+{
+	struct smsc911x_data *pdata = netdev_priv(dev);
+	u32 mac_high16 = smsc911x_mac_read(pdata, ADDRH);
+	u32 mac_low32 = smsc911x_mac_read(pdata, ADDRL);
+
+	dev->dev_addr[0] = (u8)(mac_low32);
+	dev->dev_addr[1] = (u8)(mac_low32 >> 8);
+	dev->dev_addr[2] = (u8)(mac_low32 >> 16);
+	dev->dev_addr[3] = (u8)(mac_low32 >> 24);
+	dev->dev_addr[4] = (u8)(mac_high16);
+	dev->dev_addr[5] = (u8)(mac_high16 >> 8);
+}
+
 /* Initializing private device structures, only called from probe */
 static int __devinit smsc911x_init(struct net_device *dev)
 {
@@ -1829,6 +1844,12 @@ static int __devinit smsc911x_init(struct net_device *dev)
 		SMSC_WARNING(PROBE,
 			"This driver is not intended for this chip revision");
 
+	/* workaround for platforms without an eeprom, where the mac address
+	 * is stored elsewhere and set by the bootloader.  This saves the
+	 * mac address before resetting the device */
+	if (pdata->config.flags & SMSC911X_SAVE_MAC_ADDRESS)
+		smsc911x_read_mac_address(dev);
+
 	/* Reset the LAN911x */
 	if (smsc911x_soft_reset(pdata))
 		return -ENODEV;
@@ -2009,14 +2030,7 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
 	} else {
 		/* Try reading mac address from device. if EEPROM is present
 		 * it will already have been set */
-		u32 mac_high16 = smsc911x_mac_read(pdata, ADDRH);
-		u32 mac_low32 = smsc911x_mac_read(pdata, ADDRL);
-		dev->dev_addr[0] = (u8)(mac_low32);
-		dev->dev_addr[1] = (u8)(mac_low32 >> 8);
-		dev->dev_addr[2] = (u8)(mac_low32 >> 16);
-		dev->dev_addr[3] = (u8)(mac_low32 >> 24);
-		dev->dev_addr[4] = (u8)(mac_high16);
-		dev->dev_addr[5] = (u8)(mac_high16 >> 8);
+		smsc911x_read_mac_address(dev);
 
 		if (is_valid_ether_addr(dev->dev_addr)) {
 			/* eeprom values are valid  so use them */
diff --git a/include/linux/smsc911x.h b/include/linux/smsc911x.h
index 170c76b8f7a6..b32725075d71 100644
--- a/include/linux/smsc911x.h
+++ b/include/linux/smsc911x.h
@@ -45,5 +45,6 @@ struct smsc911x_platform_config {
 #define SMSC911X_USE_32BIT 			(BIT(1))
 #define SMSC911X_FORCE_INTERNAL_PHY		(BIT(2))
 #define SMSC911X_FORCE_EXTERNAL_PHY 		(BIT(3))
+#define SMSC911X_SAVE_MAC_ADDRESS		(BIT(4))
 
 #endif /* __LINUX_SMSC911X_H__ */
-- 
cgit v1.2.3


From eefef1cf7653cd4e0aaf743c00ae8345086cdc01 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Sun, 1 Feb 2009 01:04:33 -0800
Subject: net: add ARP notify option for devices

This adds another inet device option to enable gratuitous ARP
when device is brought up or address change. This is handy for
clusters or virtualization.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/ip-sysctl.txt | 6 ++++++
 include/linux/inetdevice.h             | 1 +
 include/linux/sysctl.h                 | 1 +
 kernel/sysctl_check.c                  | 1 +
 net/ipv4/devinet.c                     | 9 +++++++++
 5 files changed, 18 insertions(+)

(limited to 'include')

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index c7712787933c..ff3f219ee4d7 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -782,6 +782,12 @@ arp_ignore - INTEGER
 	The max value from conf/{all,interface}/arp_ignore is used
 	when ARP request is received on the {interface}
 
+arp_notify - BOOLEAN
+	Define mode for notification of address and device changes.
+	0 - (default): do nothing
+	1 - Generate gratuitous arp replies when device is brought up
+	    or hardware address changes.
+
 arp_accept - BOOLEAN
 	Define behavior when gratuitous arp replies are received:
 	0 - drop gratuitous arp frames
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 06fcdb45106b..acef2a770b6b 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -108,6 +108,7 @@ static inline void ipv4_devconf_setall(struct in_device *in_dev)
 #define IN_DEV_ARPFILTER(in_dev)	IN_DEV_ORCONF((in_dev), ARPFILTER)
 #define IN_DEV_ARP_ANNOUNCE(in_dev)	IN_DEV_MAXCONF((in_dev), ARP_ANNOUNCE)
 #define IN_DEV_ARP_IGNORE(in_dev)	IN_DEV_MAXCONF((in_dev), ARP_IGNORE)
+#define IN_DEV_ARP_NOTIFY(in_dev)	IN_DEV_MAXCONF((in_dev), ARP_NOTIFY)
 
 struct in_ifaddr
 {
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 39d471d1163b..e76d3b22a466 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -490,6 +490,7 @@ enum
 	NET_IPV4_CONF_ARP_IGNORE=19,
 	NET_IPV4_CONF_PROMOTE_SECONDARIES=20,
 	NET_IPV4_CONF_ARP_ACCEPT=21,
+	NET_IPV4_CONF_ARP_NOTIFY=22,
 	__NET_IPV4_CONF_MAX
 };
 
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index fafeb48f27c0..b38423ca711a 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -219,6 +219,7 @@ static const struct trans_ctl_table trans_net_ipv4_conf_vars_table[] = {
 	{ NET_IPV4_CONF_ARP_IGNORE,		"arp_ignore" },
 	{ NET_IPV4_CONF_PROMOTE_SECONDARIES,	"promote_secondaries" },
 	{ NET_IPV4_CONF_ARP_ACCEPT,		"arp_accept" },
+	{ NET_IPV4_CONF_ARP_NOTIFY,		"arp_notify" },
 	{}
 };
 
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 309997edc8a5..d519a6a66726 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1075,6 +1075,14 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
 			}
 		}
 		ip_mc_up(in_dev);
+		/* fall through */
+	case NETDEV_CHANGEADDR:
+		if (IN_DEV_ARP_NOTIFY(in_dev))
+			arp_send(ARPOP_REQUEST, ETH_P_ARP,
+				 in_dev->ifa_list->ifa_address,
+				 dev,
+				 in_dev->ifa_list->ifa_address,
+				 NULL, dev->dev_addr, NULL);
 		break;
 	case NETDEV_DOWN:
 		ip_mc_down(in_dev);
@@ -1439,6 +1447,7 @@ static struct devinet_sysctl_table {
 		DEVINET_SYSCTL_RW_ENTRY(ARP_ANNOUNCE, "arp_announce"),
 		DEVINET_SYSCTL_RW_ENTRY(ARP_IGNORE, "arp_ignore"),
 		DEVINET_SYSCTL_RW_ENTRY(ARP_ACCEPT, "arp_accept"),
+		DEVINET_SYSCTL_RW_ENTRY(ARP_NOTIFY, "arp_notify"),
 
 		DEVINET_SYSCTL_FLUSHING_ENTRY(NOXFRM, "disable_xfrm"),
 		DEVINET_SYSCTL_FLUSHING_ENTRY(NOPOLICY, "disable_policy"),
-- 
cgit v1.2.3


From b00355db3f88d96810a60011a30cfb2c3469409d Mon Sep 17 00:00:00 2001
From: Jarek Poplawski <jarkao2@gmail.com>
Date: Sun, 1 Feb 2009 01:12:42 -0800
Subject: pkt_sched: sch_hfsc: sch_htb: Add non-work-conserving warning
 handler.

Patrick McHardy <kaber@trash.net> suggested:
> How about making this flag and the warning message (in a out-of-line
> function) globally available? Other qdiscs (f.i. HFSC) can't deal with
> inner non-work-conserving qdiscs as well.

This patch uses qdisc->flags field of "suspected" child qdisc.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/pkt_sched.h   |  1 +
 include/net/sch_generic.h |  7 ++++---
 net/sched/sch_api.c       | 11 +++++++++++
 net/sched/sch_hfsc.c      |  6 ++----
 net/sched/sch_htb.c       |  9 +--------
 5 files changed, 19 insertions(+), 15 deletions(-)

(limited to 'include')

diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 4082f39f5079..e37fe3129c17 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -85,6 +85,7 @@ extern struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
 		struct nlattr *tab);
 extern void qdisc_put_rtab(struct qdisc_rate_table *tab);
 extern void qdisc_put_stab(struct qdisc_size_table *tab);
+extern void qdisc_warn_nonwc(char *txt, struct Qdisc *qdisc);
 
 extern void __qdisc_run(struct Qdisc *q);
 
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index f8c47429044a..3d78a4d22460 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -42,9 +42,10 @@ struct Qdisc
 	int 			(*enqueue)(struct sk_buff *skb, struct Qdisc *dev);
 	struct sk_buff *	(*dequeue)(struct Qdisc *dev);
 	unsigned		flags;
-#define TCQ_F_BUILTIN	1
-#define TCQ_F_THROTTLED	2
-#define TCQ_F_INGRESS	4
+#define TCQ_F_BUILTIN		1
+#define TCQ_F_THROTTLED		2
+#define TCQ_F_INGRESS		4
+#define TCQ_F_WARN_NONWC	(1 << 16)
 	int			padded;
 	struct Qdisc_ops	*ops;
 	struct qdisc_size_table	*stab;
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 0fc4a18fd96f..32009793307b 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -444,6 +444,17 @@ out:
 }
 EXPORT_SYMBOL(qdisc_calculate_pkt_len);
 
+void qdisc_warn_nonwc(char *txt, struct Qdisc *qdisc)
+{
+	if (!(qdisc->flags & TCQ_F_WARN_NONWC)) {
+		printk(KERN_WARNING
+		       "%s: %s qdisc %X: is non-work-conserving?\n",
+		       txt, qdisc->ops->id, qdisc->handle >> 16);
+		qdisc->flags |= TCQ_F_WARN_NONWC;
+	}
+}
+EXPORT_SYMBOL(qdisc_warn_nonwc);
+
 static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer)
 {
 	struct qdisc_watchdog *wd = container_of(timer, struct qdisc_watchdog,
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 45c31b1a4e1d..74226b265528 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -887,8 +887,7 @@ qdisc_peek_len(struct Qdisc *sch)
 
 	skb = sch->ops->peek(sch);
 	if (skb == NULL) {
-		if (net_ratelimit())
-			printk("qdisc_peek_len: non work-conserving qdisc ?\n");
+		qdisc_warn_nonwc("qdisc_peek_len", sch);
 		return 0;
 	}
 	len = qdisc_pkt_len(skb);
@@ -1642,8 +1641,7 @@ hfsc_dequeue(struct Qdisc *sch)
 
 	skb = qdisc_dequeue_peeked(cl->qdisc);
 	if (skb == NULL) {
-		if (net_ratelimit())
-			printk("HFSC: Non-work-conserving qdisc ?\n");
+		qdisc_warn_nonwc("HFSC", cl->qdisc);
 		return NULL;
 	}
 
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 2f0f0b04d3fb..77ff510ef8ac 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -114,8 +114,6 @@ struct htb_class {
 	struct tcf_proto *filter_list;
 	int filter_cnt;
 
-	int warned;		/* only one warning about non work conserving .. */
-
 	/* token bucket parameters */
 	struct qdisc_rate_table *rate;	/* rate table of the class itself */
 	struct qdisc_rate_table *ceil;	/* ceiling rate (limits borrows too) */
@@ -809,13 +807,8 @@ next:
 		skb = cl->un.leaf.q->dequeue(cl->un.leaf.q);
 		if (likely(skb != NULL))
 			break;
-		if (!cl->warned) {
-			printk(KERN_WARNING
-			       "htb: class %X isn't work conserving ?!\n",
-			       cl->common.classid);
-			cl->warned = 1;
-		}
 
+		qdisc_warn_nonwc("htb", cl->un.leaf.q);
 		htb_next_rb_node((level ? cl->parent->un.inner.ptr : q->
 				  ptr[0]) + prio);
 		cl = htb_lookup_leaf(q->row[level] + prio, prio,
-- 
cgit v1.2.3


From 24dd1fa184595ff095a92de807fdf029b2632673 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Sun, 1 Feb 2009 12:31:33 -0800
Subject: net: move bsockets outside of read only beginning of struct
 inet_hashinfo

And switch bsockets to atomic_t since it might be changed in parallel.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_hashtables.h   | 3 ++-
 net/ipv4/inet_connection_sock.c | 2 +-
 net/ipv4/inet_hashtables.c      | 5 +++--
 3 files changed, 6 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 8d98dc76bd76..a44e2248b2ef 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -134,7 +134,7 @@ struct inet_hashinfo {
 	struct inet_bind_hashbucket	*bhash;
 
 	unsigned int			bhash_size;
-	int				bsockets;
+	/* 4 bytes hole on 64 bit */
 
 	struct kmem_cache		*bind_bucket_cachep;
 
@@ -151,6 +151,7 @@ struct inet_hashinfo {
 	struct inet_listen_hashbucket	listening_hash[INET_LHTABLE_SIZE]
 					____cacheline_aligned_in_smp;
 
+	atomic_t			bsockets;
 };
 
 static inline struct inet_ehash_bucket *inet_ehash_bucket(
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 9bc6a187bdce..22cd19ee44e5 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -119,7 +119,7 @@ again:
 					    (tb->num_owners < smallest_size || smallest_size == -1)) {
 						smallest_size = tb->num_owners;
 						smallest_rover = rover;
-						if (hashinfo->bsockets > (high - low) + 1) {
+						if (atomic_read(&hashinfo->bsockets) > (high - low) + 1) {
 							spin_unlock(&head->lock);
 							snum = smallest_rover;
 							goto have_snum;
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index d7b6178bf48b..625cc5f64c94 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -62,7 +62,7 @@ void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
 {
 	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
 
-	hashinfo->bsockets++;
+	atomic_inc(&hashinfo->bsockets);
 
 	inet_sk(sk)->num = snum;
 	sk_add_bind_node(sk, &tb->owners);
@@ -81,7 +81,7 @@ static void __inet_put_port(struct sock *sk)
 	struct inet_bind_hashbucket *head = &hashinfo->bhash[bhash];
 	struct inet_bind_bucket *tb;
 
-	hashinfo->bsockets--;
+	atomic_dec(&hashinfo->bsockets);
 
 	spin_lock(&head->lock);
 	tb = inet_csk(sk)->icsk_bind_hash;
@@ -532,6 +532,7 @@ void inet_hashinfo_init(struct inet_hashinfo *h)
 {
 	int i;
 
+	atomic_set(&h->bsockets, 0);
 	for (i = 0; i < INET_LHTABLE_SIZE; i++) {
 		spin_lock_init(&h->listening_hash[i].lock);
 		INIT_HLIST_NULLS_HEAD(&h->listening_hash[i].head,
-- 
cgit v1.2.3


From 659aaf2bb5496a425ba14036b5b5900f593e4484 Mon Sep 17 00:00:00 2001
From: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Date: Mon, 2 Feb 2009 15:23:44 -0200
Subject: TPM: integrity interface

This patch adds internal kernel support for:
 - reading/extending a pcr value
 - looking up the tpm_chip for a given chip number

Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 drivers/char/tpm/tpm.c | 129 +++++++++++++++++++++++++++++++++++++++++--------
 drivers/char/tpm/tpm.h |  18 +++++++
 include/linux/tpm.h    |  35 ++++++++++++++
 3 files changed, 163 insertions(+), 19 deletions(-)
 create mode 100644 include/linux/tpm.h

(limited to 'include')

diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 9b9eb761cba9..62a5682578ca 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -661,28 +661,125 @@ ssize_t tpm_show_temp_deactivated(struct device * dev,
 }
 EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
 
-static const u8 pcrread[] = {
-	0, 193,			/* TPM_TAG_RQU_COMMAND */
-	0, 0, 0, 14,		/* length */
-	0, 0, 0, 21,		/* TPM_ORD_PcrRead */
-	0, 0, 0, 0		/* PCR index */
+/*
+ * tpm_chip_find_get - return tpm_chip for given chip number
+ */
+static struct tpm_chip *tpm_chip_find_get(int chip_num)
+{
+	struct tpm_chip *pos;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(pos, &tpm_chip_list, list) {
+		if (chip_num != TPM_ANY_NUM && chip_num != pos->dev_num)
+			continue;
+
+		if (try_module_get(pos->dev->driver->owner))
+			break;
+	}
+	rcu_read_unlock();
+	return pos;
+}
+
+#define TPM_ORDINAL_PCRREAD cpu_to_be32(21)
+#define READ_PCR_RESULT_SIZE 30
+static struct tpm_input_header pcrread_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(14),
+	.ordinal = TPM_ORDINAL_PCRREAD
+};
+
+int __tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
+{
+	int rc;
+	struct tpm_cmd_t cmd;
+
+	cmd.header.in = pcrread_header;
+	cmd.params.pcrread_in.pcr_idx = cpu_to_be32(pcr_idx);
+	BUILD_BUG_ON(cmd.header.in.length > READ_PCR_RESULT_SIZE);
+	rc = transmit_cmd(chip, &cmd, cmd.header.in.length,
+			  "attempting to read a pcr value");
+
+	if (rc == 0)
+		memcpy(res_buf, cmd.params.pcrread_out.pcr_result,
+		       TPM_DIGEST_SIZE);
+	return rc;
+}
+
+/**
+ * tpm_pcr_read - read a pcr value
+ * @chip_num: 	tpm idx # or ANY
+ * @pcr_idx:	pcr idx to retrieve
+ * @res_buf: 	TPM_PCR value
+ * 		size of res_buf is 20 bytes (or NULL if you don't care)
+ *
+ * The TPM driver should be built-in, but for whatever reason it
+ * isn't, protect against the chip disappearing, by incrementing
+ * the module usage count.
+ */
+int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf)
+{
+	struct tpm_chip *chip;
+	int rc;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+	rc = __tpm_pcr_read(chip, pcr_idx, res_buf);
+	module_put(chip->dev->driver->owner);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pcr_read);
+
+/**
+ * tpm_pcr_extend - extend pcr value with hash
+ * @chip_num: 	tpm idx # or AN&
+ * @pcr_idx:	pcr idx to extend
+ * @hash: 	hash value used to extend pcr value
+ *
+ * The TPM driver should be built-in, but for whatever reason it
+ * isn't, protect against the chip disappearing, by incrementing
+ * the module usage count.
+ */
+#define TPM_ORD_PCR_EXTEND cpu_to_be32(20)
+#define EXTEND_PCR_SIZE 34
+static struct tpm_input_header pcrextend_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(34),
+	.ordinal = TPM_ORD_PCR_EXTEND
 };
 
+int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash)
+{
+	struct tpm_cmd_t cmd;
+	int rc;
+	struct tpm_chip *chip;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+
+	cmd.header.in = pcrextend_header;
+	BUILD_BUG_ON(be32_to_cpu(cmd.header.in.length) > EXTEND_PCR_SIZE);
+	cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(pcr_idx);
+	memcpy(cmd.params.pcrextend_in.hash, hash, TPM_DIGEST_SIZE);
+	rc = transmit_cmd(chip, &cmd, cmd.header.in.length,
+			  "attempting extend a PCR value");
+
+	module_put(chip->dev->driver->owner);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pcr_extend);
+
 ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
 		      char *buf)
 {
 	cap_t cap;
-	u8 *data;
+	u8 digest[TPM_DIGEST_SIZE];
 	ssize_t rc;
 	int i, j, num_pcrs;
-	__be32 index;
 	char *str = buf;
 	struct tpm_chip *chip = dev_get_drvdata(dev);
 
-	data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
 	rc = tpm_getcap(dev, TPM_CAP_PROP_PCR, &cap,
 			"attempting to determine the number of PCRS");
 	if (rc)
@@ -690,20 +787,14 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
 
 	num_pcrs = be32_to_cpu(cap.num_pcrs);
 	for (i = 0; i < num_pcrs; i++) {
-		memcpy(data, pcrread, sizeof(pcrread));
-		index = cpu_to_be32(i);
-		memcpy(data + 10, &index, 4);
-		rc = transmit_cmd(chip, (struct tpm_cmd_t *)data,
-				  TPM_INTERNAL_RESULT_SIZE,
-				  "attempting to read a PCR");
+		rc = __tpm_pcr_read(chip, i, digest);
 		if (rc)
 			break;
 		str += sprintf(str, "PCR-%02d: ", i);
 		for (j = 0; j < TPM_DIGEST_SIZE; j++)
-			str += sprintf(str, "%02X ", *(data + 10 + j));
+			str += sprintf(str, "%02X ", digest[j]);
 		str += sprintf(str, "\n");
 	}
-	kfree(data);
 	return str - buf;
 }
 EXPORT_SYMBOL_GPL(tpm_show_pcrs);
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index d64f6b7e5b82..8e00b4ddd083 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -26,6 +26,7 @@
 #include <linux/miscdevice.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/tpm.h>
 
 enum tpm_timeout {
 	TPM_TIMEOUT = 5,	/* msecs */
@@ -234,11 +235,28 @@ typedef union {
 	struct	tpm_output_header out;
 } tpm_cmd_header;
 
+#define TPM_DIGEST_SIZE 20
+struct tpm_pcrread_out {
+	u8	pcr_result[TPM_DIGEST_SIZE];
+}__attribute__((packed));
+
+struct tpm_pcrread_in {
+	__be32	pcr_idx;
+}__attribute__((packed));
+
+struct tpm_pcrextend_in {
+	__be32	pcr_idx;
+	u8	hash[TPM_DIGEST_SIZE];
+}__attribute__((packed));
+
 typedef union {
 	struct	tpm_getcap_params_out getcap_out;
 	struct	tpm_readpubek_params_out readpubek_out;
 	u8	readpubek_out_buffer[sizeof(struct tpm_readpubek_params_out)];
 	struct	tpm_getcap_params_in getcap_in;
+	struct	tpm_pcrread_in	pcrread_in;
+	struct	tpm_pcrread_out	pcrread_out;
+	struct	tpm_pcrextend_in pcrextend_in;
 } tpm_cmd_params;
 
 struct tpm_cmd_t {
diff --git a/include/linux/tpm.h b/include/linux/tpm.h
new file mode 100644
index 000000000000..3338b3f5c21a
--- /dev/null
+++ b/include/linux/tpm.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2004,2007,2008 IBM Corporation
+ *
+ * Authors:
+ * Leendert van Doorn <leendert@watson.ibm.com>
+ * Dave Safford <safford@watson.ibm.com>
+ * Reiner Sailer <sailer@watson.ibm.com>
+ * Kylene Hall <kjhall@us.ibm.com>
+ * Debora Velarde <dvelarde@us.ibm.com>
+ *
+ * Maintained by: <tpmdd_devel@lists.sourceforge.net>
+ *
+ * Device driver for TCG/TCPA TPM (trusted platform module).
+ * Specifications at www.trustedcomputinggroup.org
+ *
+ * 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.
+ *
+ */
+#ifndef __LINUX_TPM_H__
+#define __LINUX_TPM_H__
+
+/*
+ * Chip num is this value or a valid tpm idx
+ */
+#define	TPM_ANY_NUM 0xFFFF
+
+#if defined(CONFIG_TCG_TPM)
+
+extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf);
+extern int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash);
+#endif
+#endif
-- 
cgit v1.2.3


From 1a5645bc901aea6f3f446888061b2b084bbf1ba6 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Mon, 2 Feb 2009 23:22:04 -0800
Subject: connector: create connector workqueue only while needed once

The netlink connector uses its own workqueue to relay the datas sent
from userspace to the appropriate callback.  If you launch the test
from Documentation/connector and change it a bit to send a high flow
of data, you will see thousands of events coming to the "cqueue"
workqueue by looking at the workqueue tracer.

This flow of events can be sent very quickly. So, to not encumber the
kevent workqueue and delay other jobs, the "cqueue" workqueue should
remain.

But this workqueue is pointless most of the time, it will always be
created (assuming you have built it of course) although only
developpers with specific needs will use it.

So avoid this "most of the time useless task", this patch proposes to
create this workqueue only when needed once.  The first jobs to be
sent to connector callbacks will be sent to kevent while the "cqueue"
thread creation will be scheduled to kevent too.

The following jobs will continue to be scheduled to keventd until the
cqueue workqueue is created, and then the rest of the jobs will
continue to perform as usual, through this dedicated workqueue.

Each time I tested this patch, only the first event was sent to
keventd, the rest has been sent to cqueue which have been created
quickly.

Also, this patch fixes some trailing whitespaces on the connector files.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/connector/cn_queue.c  | 80 +++++++++++++++++++++++++++++++++++++------
 drivers/connector/connector.c | 19 +++++-----
 include/linux/connector.h     |  8 +++++
 3 files changed, 87 insertions(+), 20 deletions(-)

(limited to 'include')

diff --git a/drivers/connector/cn_queue.c b/drivers/connector/cn_queue.c
index b6fe7e7a2c2f..c769ef269fb5 100644
--- a/drivers/connector/cn_queue.c
+++ b/drivers/connector/cn_queue.c
@@ -1,9 +1,9 @@
 /*
  * 	cn_queue.c
- * 
+ *
  * 2004-2005 Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
  * All rights reserved.
- * 
+ *
  * 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
@@ -31,6 +31,48 @@
 #include <linux/connector.h>
 #include <linux/delay.h>
 
+
+/*
+ * This job is sent to the kevent workqueue.
+ * While no event is once sent to any callback, the connector workqueue
+ * is not created to avoid a useless waiting kernel task.
+ * Once the first event is received, we create this dedicated workqueue which
+ * is necessary because the flow of data can be high and we don't want
+ * to encumber keventd with that.
+ */
+static void cn_queue_create(struct work_struct *work)
+{
+	struct cn_queue_dev *dev;
+
+	dev = container_of(work, struct cn_queue_dev, wq_creation);
+
+	dev->cn_queue = create_singlethread_workqueue(dev->name);
+	/* If we fail, we will use keventd for all following connector jobs */
+	WARN_ON(!dev->cn_queue);
+}
+
+/*
+ * Queue a data sent to a callback.
+ * If the connector workqueue is already created, we queue the job on it.
+ * Otherwise, we queue the job to kevent and queue the connector workqueue
+ * creation too.
+ */
+int queue_cn_work(struct cn_callback_entry *cbq, struct work_struct *work)
+{
+	struct cn_queue_dev *pdev = cbq->pdev;
+
+	if (likely(pdev->cn_queue))
+		return queue_work(pdev->cn_queue, work);
+
+	/* Don't create the connector workqueue twice */
+	if (atomic_inc_return(&pdev->wq_requested) == 1)
+		schedule_work(&pdev->wq_creation);
+	else
+		atomic_dec(&pdev->wq_requested);
+
+	return schedule_work(work);
+}
+
 void cn_queue_wrapper(struct work_struct *work)
 {
 	struct cn_callback_entry *cbq =
@@ -58,14 +100,17 @@ static struct cn_callback_entry *cn_queue_alloc_callback_entry(char *name, struc
 	snprintf(cbq->id.name, sizeof(cbq->id.name), "%s", name);
 	memcpy(&cbq->id.id, id, sizeof(struct cb_id));
 	cbq->data.callback = callback;
-	
+
 	INIT_WORK(&cbq->work, &cn_queue_wrapper);
 	return cbq;
 }
 
 static void cn_queue_free_callback(struct cn_callback_entry *cbq)
 {
-	flush_workqueue(cbq->pdev->cn_queue);
+	/* The first jobs have been sent to kevent, flush them too */
+	flush_scheduled_work();
+	if (cbq->pdev->cn_queue)
+		flush_workqueue(cbq->pdev->cn_queue);
 
 	kfree(cbq);
 }
@@ -143,14 +188,11 @@ struct cn_queue_dev *cn_queue_alloc_dev(char *name, struct sock *nls)
 	atomic_set(&dev->refcnt, 0);
 	INIT_LIST_HEAD(&dev->queue_list);
 	spin_lock_init(&dev->queue_lock);
+	init_waitqueue_head(&dev->wq_created);
 
 	dev->nls = nls;
 
-	dev->cn_queue = create_singlethread_workqueue(dev->name);
-	if (!dev->cn_queue) {
-		kfree(dev);
-		return NULL;
-	}
+	INIT_WORK(&dev->wq_creation, cn_queue_create);
 
 	return dev;
 }
@@ -158,9 +200,25 @@ struct cn_queue_dev *cn_queue_alloc_dev(char *name, struct sock *nls)
 void cn_queue_free_dev(struct cn_queue_dev *dev)
 {
 	struct cn_callback_entry *cbq, *n;
+	long timeout;
+	DEFINE_WAIT(wait);
+
+	/* Flush the first pending jobs queued on kevent */
+	flush_scheduled_work();
+
+	/* If the connector workqueue creation is still pending, wait for it */
+	prepare_to_wait(&dev->wq_created, &wait, TASK_UNINTERRUPTIBLE);
+	if (atomic_read(&dev->wq_requested) && !dev->cn_queue) {
+		timeout = schedule_timeout(HZ * 2);
+		if (!timeout && !dev->cn_queue)
+			WARN_ON(1);
+	}
+	finish_wait(&dev->wq_created, &wait);
 
-	flush_workqueue(dev->cn_queue);
-	destroy_workqueue(dev->cn_queue);
+	if (dev->cn_queue) {
+		flush_workqueue(dev->cn_queue);
+		destroy_workqueue(dev->cn_queue);
+	}
 
 	spin_lock_bh(&dev->queue_lock);
 	list_for_each_entry_safe(cbq, n, &dev->queue_list, callback_entry)
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index bf4830082a13..fd336c5a9057 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -1,9 +1,9 @@
 /*
  * 	connector.c
- * 
+ *
  * 2004-2005 Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
  * All rights reserved.
- * 
+ *
  * 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
@@ -145,14 +145,13 @@ static int cn_call_callback(struct cn_msg *msg, void (*destruct_data)(void *), v
 				__cbq->data.ddata = data;
 				__cbq->data.destruct_data = destruct_data;
 
-				if (queue_work(dev->cbdev->cn_queue,
-							&__cbq->work))
+				if (queue_cn_work(__cbq, &__cbq->work))
 					err = 0;
 				else
 					err = -EINVAL;
 			} else {
 				struct cn_callback_data *d;
-				
+
 				err = -ENOMEM;
 				__new_cbq = kzalloc(sizeof(struct cn_callback_entry), GFP_ATOMIC);
 				if (__new_cbq) {
@@ -163,10 +162,12 @@ static int cn_call_callback(struct cn_msg *msg, void (*destruct_data)(void *), v
 					d->destruct_data = destruct_data;
 					d->free = __new_cbq;
 
+					__new_cbq->pdev = __cbq->pdev;
+
 					INIT_WORK(&__new_cbq->work,
 							&cn_queue_wrapper);
 
-					if (queue_work(dev->cbdev->cn_queue,
+					if (queue_cn_work(__new_cbq,
 						    &__new_cbq->work))
 						err = 0;
 					else {
@@ -237,7 +238,7 @@ static void cn_notify(struct cb_id *id, u32 notify_event)
 
 		req = (struct cn_notify_req *)ctl->data;
 		for (i = 0; i < ctl->idx_notify_num; ++i, ++req) {
-			if (id->idx >= req->first && 
+			if (id->idx >= req->first &&
 					id->idx < req->first + req->range) {
 				idx_found = 1;
 				break;
@@ -245,7 +246,7 @@ static void cn_notify(struct cb_id *id, u32 notify_event)
 		}
 
 		for (i = 0; i < ctl->val_notify_num; ++i, ++req) {
-			if (id->val >= req->first && 
+			if (id->val >= req->first &&
 					id->val < req->first + req->range) {
 				val_found = 1;
 				break;
@@ -459,7 +460,7 @@ static int __devinit cn_init(void)
 		netlink_kernel_release(dev->nls);
 		return -EINVAL;
 	}
-	
+
 	cn_already_initialized = 1;
 
 	err = cn_add_callback(&dev->id, "connector", &cn_callback);
diff --git a/include/linux/connector.h b/include/linux/connector.h
index 34f2789d9b9b..fc65d219d88c 100644
--- a/include/linux/connector.h
+++ b/include/linux/connector.h
@@ -109,6 +109,12 @@ struct cn_queue_dev {
 	unsigned char name[CN_CBQ_NAMELEN];
 
 	struct workqueue_struct *cn_queue;
+	/* Sent to kevent to create cn_queue only when needed */
+	struct work_struct wq_creation;
+	/* Tell if the wq_creation job is pending/completed */
+	atomic_t wq_requested;
+	/* Wait for cn_queue to be created */
+	wait_queue_head_t wq_created;
 
 	struct list_head queue_list;
 	spinlock_t queue_lock;
@@ -164,6 +170,8 @@ int cn_netlink_send(struct cn_msg *, u32, gfp_t);
 int cn_queue_add_callback(struct cn_queue_dev *dev, char *name, struct cb_id *id, void (*callback)(void *));
 void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id);
 
+int queue_cn_work(struct cn_callback_entry *cbq, struct work_struct *work);
+
 struct cn_queue_dev *cn_queue_alloc_dev(char *name, struct sock *);
 void cn_queue_free_dev(struct cn_queue_dev *dev);
 
-- 
cgit v1.2.3


From 2a41f71d3bd97dde3305b4e1c43ab0eca46e7c71 Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@hp.com>
Date: Wed, 4 Feb 2009 09:02:34 +0000
Subject: virtio_net: Add a virtqueue for outbound control commands

This will be used for RX mode, MAC filter table, VLAN filtering, etc...

The control transaction consists of one or more "out" sg entries and
one or more "in" sg entries.  The first out entry contains a header
defining the class and command.  Additional out entries may provide
data for the command.  The last in entry provides a status response
back from the command.

Virtqueues typically run asynchronous, running a callback function
when there's data in the channel.  We can't readily make use of this
in the command paths where we need to use this.  Instead, we kick
the virtqueue and spin.  The kick causes an I/O write, triggering an
immediate trap into the hypervisor.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c   | 68 ++++++++++++++++++++++++++++++++++++++++++++--
 include/linux/virtio_net.h | 18 ++++++++++++
 2 files changed, 83 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index fe576e75a538..67bb583b7fc9 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -37,10 +37,12 @@ module_param(gso, bool, 0444);
 #define MAX_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
 #define GOOD_COPY_LEN	128
 
+#define VIRTNET_SEND_COMMAND_SG_MAX    0
+
 struct virtnet_info
 {
 	struct virtio_device *vdev;
-	struct virtqueue *rvq, *svq;
+	struct virtqueue *rvq, *svq, *cvq;
 	struct net_device *dev;
 	struct napi_struct napi;
 	unsigned int status;
@@ -589,6 +591,53 @@ static int virtnet_open(struct net_device *dev)
 	return 0;
 }
 
+/*
+ * Send command via the control virtqueue and check status.  Commands
+ * supported by the hypervisor, as indicated by feature bits, should
+ * never fail unless improperly formated.
+ */
+static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd,
+				 struct scatterlist *data, int out, int in)
+{
+	struct scatterlist sg[VIRTNET_SEND_COMMAND_SG_MAX + 2];
+	struct virtio_net_ctrl_hdr ctrl;
+	virtio_net_ctrl_ack status = ~0;
+	unsigned int tmp;
+
+	if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ)) {
+		BUG();  /* Caller should know better */
+		return false;
+	}
+
+	BUG_ON(out + in > VIRTNET_SEND_COMMAND_SG_MAX);
+
+	out++; /* Add header */
+	in++; /* Add return status */
+
+	ctrl.class = class;
+	ctrl.cmd = cmd;
+
+	sg_init_table(sg, out + in);
+
+	sg_set_buf(&sg[0], &ctrl, sizeof(ctrl));
+	memcpy(&sg[1], data, sizeof(struct scatterlist) * (out + in - 2));
+	sg_set_buf(&sg[out + in - 1], &status, sizeof(status));
+
+	if (vi->cvq->vq_ops->add_buf(vi->cvq, sg, out, in, vi) != 0)
+		BUG();
+
+	vi->cvq->vq_ops->kick(vi->cvq);
+
+	/*
+	 * Spin for a response, the kick causes an ioport write, trapping
+	 * into the hypervisor, so the request should be handled immediately.
+	 */
+	while (!vi->cvq->vq_ops->get_buf(vi->cvq, &tmp))
+		cpu_relax();
+
+	return status == VIRTIO_NET_OK;
+}
+
 static int virtnet_close(struct net_device *dev)
 {
 	struct virtnet_info *vi = netdev_priv(dev);
@@ -752,6 +801,14 @@ static int virtnet_probe(struct virtio_device *vdev)
 		goto free_recv;
 	}
 
+	if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ)) {
+		vi->cvq = vdev->config->find_vq(vdev, 2, NULL);
+		if (IS_ERR(vi->cvq)) {
+			err = PTR_ERR(vi->svq);
+			goto free_send;
+		}
+	}
+
 	/* Initialize our empty receive and send queues. */
 	skb_queue_head_init(&vi->recv);
 	skb_queue_head_init(&vi->send);
@@ -764,7 +821,7 @@ static int virtnet_probe(struct virtio_device *vdev)
 	err = register_netdev(dev);
 	if (err) {
 		pr_debug("virtio_net: registering device failed\n");
-		goto free_send;
+		goto free_ctrl;
 	}
 
 	/* Last of all, set up some receive buffers. */
@@ -784,6 +841,9 @@ static int virtnet_probe(struct virtio_device *vdev)
 
 unregister:
 	unregister_netdev(dev);
+free_ctrl:
+	if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ))
+		vdev->config->del_vq(vi->cvq);
 free_send:
 	vdev->config->del_vq(vi->svq);
 free_recv:
@@ -815,6 +875,8 @@ static void virtnet_remove(struct virtio_device *vdev)
 
 	vdev->config->del_vq(vi->svq);
 	vdev->config->del_vq(vi->rvq);
+	if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ))
+		vdev->config->del_vq(vi->cvq);
 	unregister_netdev(vi->dev);
 
 	while (vi->pages)
@@ -834,7 +896,7 @@ static unsigned int features[] = {
 	VIRTIO_NET_F_HOST_TSO4, VIRTIO_NET_F_HOST_UFO, VIRTIO_NET_F_HOST_TSO6,
 	VIRTIO_NET_F_HOST_ECN, VIRTIO_NET_F_GUEST_TSO4, VIRTIO_NET_F_GUEST_TSO6,
 	VIRTIO_NET_F_GUEST_ECN, /* We don't yet handle UFO input. */
-	VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS,
+	VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS, VIRTIO_NET_F_CTRL_VQ,
 	VIRTIO_F_NOTIFY_ON_EMPTY,
 };
 
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index d8e362d52fd8..245eda829aa8 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -23,6 +23,7 @@
 #define VIRTIO_NET_F_HOST_UFO	14	/* Host can handle UFO in. */
 #define VIRTIO_NET_F_MRG_RXBUF	15	/* Host can merge receive buffers. */
 #define VIRTIO_NET_F_STATUS	16	/* virtio_net_config.status available */
+#define VIRTIO_NET_F_CTRL_VQ	17	/* Control channel available */
 
 #define VIRTIO_NET_S_LINK_UP	1	/* Link is up */
 
@@ -59,4 +60,21 @@ struct virtio_net_hdr_mrg_rxbuf {
 	__u16 num_buffers;	/* Number of merged rx buffers */
 };
 
+/*
+ * Control virtqueue data structures
+ *
+ * The control virtqueue expects a header in the first sg entry
+ * and an ack/status response in the last entry.  Data for the
+ * command goes in between.
+ */
+struct virtio_net_ctrl_hdr {
+	__u8 class;
+	__u8 cmd;
+} __attribute__((packed));
+
+typedef __u8 virtio_net_ctrl_ack;
+
+#define VIRTIO_NET_OK     0
+#define VIRTIO_NET_ERR    1
+
 #endif /* _LINUX_VIRTIO_NET_H */
-- 
cgit v1.2.3


From 2af7698e2dd698d452ab9d63a9ca5956bbe8fc3b Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@hp.com>
Date: Wed, 4 Feb 2009 09:02:40 +0000
Subject: virtio_net: Add a set_rx_mode interface

Make use of the RX_MODE control virtqueue class to enable the
set_rx_mode netdev interface.  This allows us to selectively
enable/disable promiscuous and allmulti mode so we don't see
packets we don't want.  For now, we automatically enable these
as needed if additional unicast or multicast addresses are
requested.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c   | 34 +++++++++++++++++++++++++++++++++-
 include/linux/virtio_net.h | 11 +++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 67bb583b7fc9..1abea9dc6f0f 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -37,7 +37,7 @@ module_param(gso, bool, 0444);
 #define MAX_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
 #define GOOD_COPY_LEN	128
 
-#define VIRTNET_SEND_COMMAND_SG_MAX    0
+#define VIRTNET_SEND_COMMAND_SG_MAX    1
 
 struct virtnet_info
 {
@@ -658,6 +658,36 @@ static int virtnet_set_tx_csum(struct net_device *dev, u32 data)
 	return ethtool_op_set_tx_hw_csum(dev, data);
 }
 
+static void virtnet_set_rx_mode(struct net_device *dev)
+{
+	struct virtnet_info *vi = netdev_priv(dev);
+	struct scatterlist sg;
+	u8 promisc, allmulti;
+
+	/* We can't dynamicaly set ndo_set_rx_mode, so return gracefully */
+	if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_RX))
+		return;
+
+	promisc = ((dev->flags & IFF_PROMISC) != 0 || dev->uc_count > 0);
+	allmulti = ((dev->flags & IFF_ALLMULTI) != 0 || dev->mc_count > 0);
+
+	sg_set_buf(&sg, &promisc, sizeof(promisc));
+
+	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX,
+				  VIRTIO_NET_CTRL_RX_PROMISC,
+				  &sg, 1, 0))
+		dev_warn(&dev->dev, "Failed to %sable promisc mode.\n",
+			 promisc ? "en" : "dis");
+
+	sg_set_buf(&sg, &allmulti, sizeof(allmulti));
+
+	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX,
+				  VIRTIO_NET_CTRL_RX_ALLMULTI,
+				  &sg, 1, 0))
+		dev_warn(&dev->dev, "Failed to %sable allmulti mode.\n",
+			 allmulti ? "en" : "dis");
+}
+
 static struct ethtool_ops virtnet_ethtool_ops = {
 	.set_tx_csum = virtnet_set_tx_csum,
 	.set_sg = ethtool_op_set_sg,
@@ -682,6 +712,7 @@ static const struct net_device_ops virtnet_netdev = {
 	.ndo_start_xmit      = start_xmit,
 	.ndo_validate_addr   = eth_validate_addr,
 	.ndo_set_mac_address = eth_mac_addr,
+	.ndo_set_rx_mode     = virtnet_set_rx_mode,
 	.ndo_change_mtu	     = virtnet_change_mtu,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller = virtnet_netpoll,
@@ -897,6 +928,7 @@ static unsigned int features[] = {
 	VIRTIO_NET_F_HOST_ECN, VIRTIO_NET_F_GUEST_TSO4, VIRTIO_NET_F_GUEST_TSO6,
 	VIRTIO_NET_F_GUEST_ECN, /* We don't yet handle UFO input. */
 	VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS, VIRTIO_NET_F_CTRL_VQ,
+	VIRTIO_NET_F_CTRL_RX,
 	VIRTIO_F_NOTIFY_ON_EMPTY,
 };
 
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 245eda829aa8..63b2461a40f1 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -24,6 +24,7 @@
 #define VIRTIO_NET_F_MRG_RXBUF	15	/* Host can merge receive buffers. */
 #define VIRTIO_NET_F_STATUS	16	/* virtio_net_config.status available */
 #define VIRTIO_NET_F_CTRL_VQ	17	/* Control channel available */
+#define VIRTIO_NET_F_CTRL_RX	18	/* Control channel RX mode support */
 
 #define VIRTIO_NET_S_LINK_UP	1	/* Link is up */
 
@@ -77,4 +78,14 @@ typedef __u8 virtio_net_ctrl_ack;
 #define VIRTIO_NET_OK     0
 #define VIRTIO_NET_ERR    1
 
+/*
+ * Control the RX mode, ie. promisucous and allmulti.  PROMISC and
+ * ALLMULTI commands require an "out" sg entry containing a 1 byte
+ * state value, zero = disable, non-zero = enable.  These commands
+ * are supported with the VIRTIO_NET_F_CTRL_RX feature.
+ */
+#define VIRTIO_NET_CTRL_RX    0
+ #define VIRTIO_NET_CTRL_RX_PROMISC      0
+ #define VIRTIO_NET_CTRL_RX_ALLMULTI     1
+
 #endif /* _LINUX_VIRTIO_NET_H */
-- 
cgit v1.2.3


From f565a7c259d71cc186753653d978c646d2354b36 Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@hp.com>
Date: Wed, 4 Feb 2009 09:02:45 +0000
Subject: virtio_net: Add a MAC filter table

Make use of the MAC control virtqueue class to support a MAC
filter table.  The filter table is managed by the hypervisor.
We consider the table to be available if the CTRL_RX feature
bit is set.  We leave it to the hypervisor to manage the table
and enable promiscuous or all-multi mode as necessary depending
on the resources available to it.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c   | 55 +++++++++++++++++++++++++++++++++++++++-------
 include/linux/virtio_net.h | 23 +++++++++++++++++++
 2 files changed, 70 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 1abea9dc6f0f..daab9c9b0a40 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -37,7 +37,7 @@ module_param(gso, bool, 0444);
 #define MAX_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
 #define GOOD_COPY_LEN	128
 
-#define VIRTNET_SEND_COMMAND_SG_MAX    1
+#define VIRTNET_SEND_COMMAND_SG_MAX    2
 
 struct virtnet_info
 {
@@ -661,31 +661,70 @@ static int virtnet_set_tx_csum(struct net_device *dev, u32 data)
 static void virtnet_set_rx_mode(struct net_device *dev)
 {
 	struct virtnet_info *vi = netdev_priv(dev);
-	struct scatterlist sg;
+	struct scatterlist sg[2];
 	u8 promisc, allmulti;
+	struct virtio_net_ctrl_mac *mac_data;
+	struct dev_addr_list *addr;
+	void *buf;
+	int i;
 
 	/* We can't dynamicaly set ndo_set_rx_mode, so return gracefully */
 	if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_RX))
 		return;
 
-	promisc = ((dev->flags & IFF_PROMISC) != 0 || dev->uc_count > 0);
-	allmulti = ((dev->flags & IFF_ALLMULTI) != 0 || dev->mc_count > 0);
+	promisc = ((dev->flags & IFF_PROMISC) != 0);
+	allmulti = ((dev->flags & IFF_ALLMULTI) != 0);
 
-	sg_set_buf(&sg, &promisc, sizeof(promisc));
+	sg_set_buf(sg, &promisc, sizeof(promisc));
 
 	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX,
 				  VIRTIO_NET_CTRL_RX_PROMISC,
-				  &sg, 1, 0))
+				  sg, 1, 0))
 		dev_warn(&dev->dev, "Failed to %sable promisc mode.\n",
 			 promisc ? "en" : "dis");
 
-	sg_set_buf(&sg, &allmulti, sizeof(allmulti));
+	sg_set_buf(sg, &allmulti, sizeof(allmulti));
 
 	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX,
 				  VIRTIO_NET_CTRL_RX_ALLMULTI,
-				  &sg, 1, 0))
+				  sg, 1, 0))
 		dev_warn(&dev->dev, "Failed to %sable allmulti mode.\n",
 			 allmulti ? "en" : "dis");
+
+	/* MAC filter - use one buffer for both lists */
+	mac_data = buf = kzalloc(((dev->uc_count + dev->mc_count) * ETH_ALEN) +
+				 (2 * sizeof(mac_data->entries)), GFP_ATOMIC);
+	if (!buf) {
+		dev_warn(&dev->dev, "No memory for MAC address buffer\n");
+		return;
+	}
+
+	/* Store the unicast list and count in the front of the buffer */
+	mac_data->entries = dev->uc_count;
+	addr = dev->uc_list;
+	for (i = 0; i < dev->uc_count; i++, addr = addr->next)
+		memcpy(&mac_data->macs[i][0], addr->da_addr, ETH_ALEN);
+
+	sg_set_buf(&sg[0], mac_data,
+		   sizeof(mac_data->entries) + (dev->uc_count * ETH_ALEN));
+
+	/* multicast list and count fill the end */
+	mac_data = (void *)&mac_data->macs[dev->uc_count][0];
+
+	mac_data->entries = dev->mc_count;
+	addr = dev->mc_list;
+	for (i = 0; i < dev->mc_count; i++, addr = addr->next)
+		memcpy(&mac_data->macs[i][0], addr->da_addr, ETH_ALEN);
+
+	sg_set_buf(&sg[1], mac_data,
+		   sizeof(mac_data->entries) + (dev->mc_count * ETH_ALEN));
+
+	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC,
+				  VIRTIO_NET_CTRL_MAC_TABLE_SET,
+				  sg, 2, 0))
+		dev_warn(&dev->dev, "Failed to set MAC fitler table.\n");
+
+	kfree(buf);
 }
 
 static struct ethtool_ops virtnet_ethtool_ops = {
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 63b2461a40f1..ba82b653cace 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -88,4 +88,27 @@ typedef __u8 virtio_net_ctrl_ack;
  #define VIRTIO_NET_CTRL_RX_PROMISC      0
  #define VIRTIO_NET_CTRL_RX_ALLMULTI     1
 
+/*
+ * Control the MAC filter table.
+ *
+ * The MAC filter table is managed by the hypervisor, the guest should
+ * assume the size is infinite.  Filtering should be considered
+ * non-perfect, ie. based on hypervisor resources, the guest may
+ * received packets from sources not specified in the filter list.
+ *
+ * In addition to the class/cmd header, the TABLE_SET command requires
+ * two out scatterlists.  Each contains a 4 byte count of entries followed
+ * by a concatenated byte stream of the ETH_ALEN MAC addresses.  The
+ * first sg list contains unicast addresses, the second is for multicast.
+ * This functionality is present if the VIRTIO_NET_F_CTRL_RX feature
+ * is available.
+ */
+struct virtio_net_ctrl_mac {
+	__u32 entries;
+	__u8 macs[][ETH_ALEN];
+} __attribute__((packed));
+
+#define VIRTIO_NET_CTRL_MAC    1
+ #define VIRTIO_NET_CTRL_MAC_TABLE_SET        0
+
 #endif /* _LINUX_VIRTIO_NET_H */
-- 
cgit v1.2.3


From 0bde95690d65653e420d04856c5d5783155c747c Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@hp.com>
Date: Wed, 4 Feb 2009 09:02:50 +0000
Subject: virtio_net: Add support for VLAN filtering in the hypervisor

VLAN filtering allows the hypervisor to drop packets from VLANs
that we're not a part of, further reducing the number of extraneous
packets recieved.  This makes use of the VLAN virtqueue command class.
The CTRL_VLAN feature bit tells us whether the backend supports VLAN
filtering.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c   | 31 ++++++++++++++++++++++++++++++-
 include/linux/virtio_net.h | 14 ++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index daab9c9b0a40..e68813a246db 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -727,6 +727,30 @@ static void virtnet_set_rx_mode(struct net_device *dev)
 	kfree(buf);
 }
 
+static void virnet_vlan_rx_add_vid(struct net_device *dev, u16 vid)
+{
+	struct virtnet_info *vi = netdev_priv(dev);
+	struct scatterlist sg;
+
+	sg_set_buf(&sg, &vid, sizeof(vid));
+
+	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN,
+				  VIRTIO_NET_CTRL_VLAN_ADD, &sg, 1, 0))
+		dev_warn(&dev->dev, "Failed to add VLAN ID %d.\n", vid);
+}
+
+static void virnet_vlan_rx_kill_vid(struct net_device *dev, u16 vid)
+{
+	struct virtnet_info *vi = netdev_priv(dev);
+	struct scatterlist sg;
+
+	sg_set_buf(&sg, &vid, sizeof(vid));
+
+	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN,
+				  VIRTIO_NET_CTRL_VLAN_DEL, &sg, 1, 0))
+		dev_warn(&dev->dev, "Failed to kill VLAN ID %d.\n", vid);
+}
+
 static struct ethtool_ops virtnet_ethtool_ops = {
 	.set_tx_csum = virtnet_set_tx_csum,
 	.set_sg = ethtool_op_set_sg,
@@ -753,6 +777,8 @@ static const struct net_device_ops virtnet_netdev = {
 	.ndo_set_mac_address = eth_mac_addr,
 	.ndo_set_rx_mode     = virtnet_set_rx_mode,
 	.ndo_change_mtu	     = virtnet_change_mtu,
+	.ndo_vlan_rx_add_vid = virnet_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid = virnet_vlan_rx_kill_vid,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller = virtnet_netpoll,
 #endif
@@ -877,6 +903,9 @@ static int virtnet_probe(struct virtio_device *vdev)
 			err = PTR_ERR(vi->svq);
 			goto free_send;
 		}
+
+		if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VLAN))
+			dev->features |= NETIF_F_HW_VLAN_FILTER;
 	}
 
 	/* Initialize our empty receive and send queues. */
@@ -967,7 +996,7 @@ static unsigned int features[] = {
 	VIRTIO_NET_F_HOST_ECN, VIRTIO_NET_F_GUEST_TSO4, VIRTIO_NET_F_GUEST_TSO6,
 	VIRTIO_NET_F_GUEST_ECN, /* We don't yet handle UFO input. */
 	VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS, VIRTIO_NET_F_CTRL_VQ,
-	VIRTIO_NET_F_CTRL_RX,
+	VIRTIO_NET_F_CTRL_RX, VIRTIO_NET_F_CTRL_VLAN,
 	VIRTIO_F_NOTIFY_ON_EMPTY,
 };
 
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index ba82b653cace..242348bb3766 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -25,6 +25,7 @@
 #define VIRTIO_NET_F_STATUS	16	/* virtio_net_config.status available */
 #define VIRTIO_NET_F_CTRL_VQ	17	/* Control channel available */
 #define VIRTIO_NET_F_CTRL_RX	18	/* Control channel RX mode support */
+#define VIRTIO_NET_F_CTRL_VLAN	19	/* Control channel VLAN filtering */
 
 #define VIRTIO_NET_S_LINK_UP	1	/* Link is up */
 
@@ -111,4 +112,17 @@ struct virtio_net_ctrl_mac {
 #define VIRTIO_NET_CTRL_MAC    1
  #define VIRTIO_NET_CTRL_MAC_TABLE_SET        0
 
+/*
+ * Control VLAN filtering
+ *
+ * The VLAN filter table is controlled via a simple ADD/DEL interface.
+ * VLAN IDs not added may be filterd by the hypervisor.  Del is the
+ * opposite of add.  Both commands expect an out entry containing a 2
+ * byte VLAN ID.  VLAN filterting is available with the
+ * VIRTIO_NET_F_CTRL_VLAN feature bit.
+ */
+#define VIRTIO_NET_CTRL_VLAN       2
+ #define VIRTIO_NET_CTRL_VLAN_ADD             0
+ #define VIRTIO_NET_CTRL_VLAN_DEL             1
+
 #endif /* _LINUX_VIRTIO_NET_H */
-- 
cgit v1.2.3


From 4cc7f68d65558f683c702d4fe3a5aac4c5227b97 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 4 Feb 2009 16:55:54 -0800
Subject: net: Reexport sock_alloc_send_pskb

The function sock_alloc_send_pskb is completely useless if not
exported since most of the code in it won't be used as is.  In
fact, this code has already been duplicated in the tun driver.

Now that we need accounting in the tun driver, we can in fact
use this function as is.  So this patch marks it for export again.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sock.h | 5 +++++
 net/core/sock.c    | 8 ++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/net/sock.h b/include/net/sock.h
index 5a3a151bd730..c047def9cf10 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -945,6 +945,11 @@ extern struct sk_buff 		*sock_alloc_send_skb(struct sock *sk,
 						     unsigned long size,
 						     int noblock,
 						     int *errcode);
+extern struct sk_buff 		*sock_alloc_send_pskb(struct sock *sk,
+						      unsigned long header_len,
+						      unsigned long data_len,
+						      int noblock,
+						      int *errcode);
 extern void *sock_kmalloc(struct sock *sk, int size,
 			  gfp_t priority);
 extern void sock_kfree_s(struct sock *sk, void *mem, int size);
diff --git a/net/core/sock.c b/net/core/sock.c
index f3a0d08cbb48..c64996f8a27a 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1254,10 +1254,9 @@ static long sock_wait_for_wmem(struct sock * sk, long timeo)
  *	Generic send/receive buffer handlers
  */
 
-static struct sk_buff *sock_alloc_send_pskb(struct sock *sk,
-					    unsigned long header_len,
-					    unsigned long data_len,
-					    int noblock, int *errcode)
+struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len,
+				     unsigned long data_len, int noblock,
+				     int *errcode)
 {
 	struct sk_buff *skb;
 	gfp_t gfp_mask;
@@ -1337,6 +1336,7 @@ failure:
 	*errcode = err;
 	return NULL;
 }
+EXPORT_SYMBOL(sock_alloc_send_pskb);
 
 struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size,
 				    int noblock, int *errcode)
-- 
cgit v1.2.3


From e0d80648c0037b8b815317a52b782d4ea0c287f0 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 5 Feb 2009 09:17:50 +0100
Subject: ALSA: hwdep - Fix coding style

Fix misc coding style issues in hwdep.h and add some comments.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/hwdep.h | 38 ++++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/include/sound/hwdep.h b/include/sound/hwdep.h
index d9eea013c753..8c05e47a4090 100644
--- a/include/sound/hwdep.h
+++ b/include/sound/hwdep.h
@@ -27,18 +27,28 @@
 
 struct snd_hwdep;
 
+/* hwdep file ops; all ops can be NULL */
 struct snd_hwdep_ops {
-	long long (*llseek) (struct snd_hwdep *hw, struct file * file, long long offset, int orig);
-	long (*read) (struct snd_hwdep *hw, char __user *buf, long count, loff_t *offset);
-	long (*write) (struct snd_hwdep *hw, const char __user *buf, long count, loff_t *offset);
-	int (*open) (struct snd_hwdep * hw, struct file * file);
-	int (*release) (struct snd_hwdep *hw, struct file * file);
-	unsigned int (*poll) (struct snd_hwdep *hw, struct file * file, poll_table * wait);
-	int (*ioctl) (struct snd_hwdep *hw, struct file * file, unsigned int cmd, unsigned long arg);
-	int (*ioctl_compat) (struct snd_hwdep *hw, struct file * file, unsigned int cmd, unsigned long arg);
-	int (*mmap) (struct snd_hwdep *hw, struct file * file, struct vm_area_struct * vma);
-	int (*dsp_status) (struct snd_hwdep *hw, struct snd_hwdep_dsp_status *status);
-	int (*dsp_load) (struct snd_hwdep *hw, struct snd_hwdep_dsp_image *image);
+	long long (*llseek)(struct snd_hwdep *hw, struct file *file,
+			    long long offset, int orig);
+	long (*read)(struct snd_hwdep *hw, char __user *buf,
+		     long count, loff_t *offset);
+	long (*write)(struct snd_hwdep *hw, const char __user *buf,
+		      long count, loff_t *offset);
+	int (*open)(struct snd_hwdep *hw, struct file * file);
+	int (*release)(struct snd_hwdep *hw, struct file * file);
+	unsigned int (*poll)(struct snd_hwdep *hw, struct file *file,
+			     poll_table *wait);
+	int (*ioctl)(struct snd_hwdep *hw, struct file *file,
+		     unsigned int cmd, unsigned long arg);
+	int (*ioctl_compat)(struct snd_hwdep *hw, struct file *file,
+			    unsigned int cmd, unsigned long arg);
+	int (*mmap)(struct snd_hwdep *hw, struct file *file,
+		    struct vm_area_struct *vma);
+	int (*dsp_status)(struct snd_hwdep *hw,
+			  struct snd_hwdep_dsp_status *status);
+	int (*dsp_load)(struct snd_hwdep *hw,
+			struct snd_hwdep_dsp_image *image);
 };
 
 struct snd_hwdep {
@@ -61,9 +71,9 @@ struct snd_hwdep {
 	void (*private_free) (struct snd_hwdep *hwdep);
 
 	struct mutex open_mutex;
-	int used;
-	unsigned int dsp_loaded;
-	unsigned int exclusive: 1;
+	int used;			/* reference counter */
+	unsigned int dsp_loaded;	/* bit fields of loaded dsp indices */
+	unsigned int exclusive:1;	/* exclusive access mode */
 };
 
 extern int snd_hwdep_new(struct snd_card *card, char *id, int device,
-- 
cgit v1.2.3


From e6161653094f14b1add10efe3493a2e526fe9538 Mon Sep 17 00:00:00 2001
From: Tim Blechmann <tim@klingt.org>
Date: Thu, 5 Feb 2009 13:01:54 +0100
Subject: ALSA: snd_pcm_new api cleanup

Impact: cleanup

snd_pcm_new takes a char *id argument, although it is not modifying
the string. it can therefore be declared as const char *id.

Signed-off-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/pcm.h | 2 +-
 sound/core/pcm.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 40c5a6fa6bcd..ee0e887e49d4 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -451,7 +451,7 @@ struct snd_pcm_notify {
 
 extern const struct file_operations snd_pcm_f_ops[2];
 
-int snd_pcm_new(struct snd_card *card, char *id, int device,
+int snd_pcm_new(struct snd_card *card, const char *id, int device,
 		int playback_count, int capture_count,
 		struct snd_pcm **rpcm);
 int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count);
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 192a433a2403..583453e2355c 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -692,7 +692,7 @@ EXPORT_SYMBOL(snd_pcm_new_stream);
  *
  * Returns zero if successful, or a negative error code on failure.
  */
-int snd_pcm_new(struct snd_card *card, char *id, int device,
+int snd_pcm_new(struct snd_card *card, const char *id, int device,
 		int playback_count, int capture_count,
 	        struct snd_pcm ** rpcm)
 {
-- 
cgit v1.2.3


From e4967d6016b7785edafdb871e6d3e4426cb4bd1f Mon Sep 17 00:00:00 2001
From: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Date: Thu, 5 Feb 2009 13:10:59 +0100
Subject: ALSA: Add ALSA driver for Atmel Audio Bitstream DAC

This patch adds ALSA support for the Audio Bistream DAC found on Atmel
AVR32 devices. The ABDAC is an Atmel IP which might show up on AT91
devices in the future, hence making a generic driver which can be
utilized by AT91 arch if needed.

Datasheet describing the ABDAC peripheral is available in the AT32AP7000
datasheet, http://www.atmel.com/dyn/products/datasheets.asp?family_id=682

Tested on ATSTK1006 + ATSTK1000 with a class D amplifier stage.

Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/atmel-abdac.h |  23 ++
 sound/atmel/Kconfig         |  11 +
 sound/atmel/Makefile        |   3 +
 sound/atmel/abdac.c         | 602 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 639 insertions(+)
 create mode 100644 include/sound/atmel-abdac.h
 create mode 100644 sound/atmel/Kconfig
 create mode 100644 sound/atmel/Makefile
 create mode 100644 sound/atmel/abdac.c

(limited to 'include')

diff --git a/include/sound/atmel-abdac.h b/include/sound/atmel-abdac.h
new file mode 100644
index 000000000000..edff6a8ba1b5
--- /dev/null
+++ b/include/sound/atmel-abdac.h
@@ -0,0 +1,23 @@
+/*
+ * Driver for the Atmel Audio Bitstream DAC (ABDAC)
+ *
+ * Copyright (C) 2009 Atmel Corporation
+ *
+ * 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.
+ */
+#ifndef __INCLUDE_SOUND_ATMEL_ABDAC_H
+#define __INCLUDE_SOUND_ATMEL_ABDAC_H
+
+#include <linux/dw_dmac.h>
+
+/**
+ * struct atmel_abdac_pdata - board specific ABDAC configuration
+ * @dws: DMA slave interface to use for sound playback.
+ */
+struct atmel_abdac_pdata {
+	struct dw_dma_slave	dws;
+};
+
+#endif /* __INCLUDE_SOUND_ATMEL_ABDAC_H */
diff --git a/sound/atmel/Kconfig b/sound/atmel/Kconfig
new file mode 100644
index 000000000000..715318e3670f
--- /dev/null
+++ b/sound/atmel/Kconfig
@@ -0,0 +1,11 @@
+menu "Atmel devices (AVR32 and AT91)"
+	depends on AVR32 || ARCH_AT91
+
+config SND_ATMEL_ABDAC
+	tristate "Atmel Audio Bitstream DAC (ABDAC) driver"
+	select SND_PCM
+	depends on DW_DMAC && AVR32
+	help
+	  ALSA sound driver for the Atmel Audio Bitstream DAC (ABDAC).
+
+endmenu
diff --git a/sound/atmel/Makefile b/sound/atmel/Makefile
new file mode 100644
index 000000000000..c5a8213f9cb9
--- /dev/null
+++ b/sound/atmel/Makefile
@@ -0,0 +1,3 @@
+snd-atmel-abdac-objs		:= abdac.o
+
+obj-$(CONFIG_SND_ATMEL_ABDAC)	+= snd-atmel-abdac.o
diff --git a/sound/atmel/abdac.c b/sound/atmel/abdac.c
new file mode 100644
index 000000000000..28b3c7f7cfe6
--- /dev/null
+++ b/sound/atmel/abdac.c
@@ -0,0 +1,602 @@
+/*
+ * Driver for the Atmel on-chip Audio Bitstream DAC (ABDAC)
+ *
+ * Copyright (C) 2006-2009 Atmel Corporation
+ *
+ * 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.
+ */
+#include <linux/clk.h>
+#include <linux/bitmap.h>
+#include <linux/dw_dmac.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/atmel-abdac.h>
+
+/* DAC register offsets */
+#define DAC_DATA                                0x0000
+#define DAC_CTRL                                0x0008
+#define DAC_INT_MASK                            0x000c
+#define DAC_INT_EN                              0x0010
+#define DAC_INT_DIS                             0x0014
+#define DAC_INT_CLR                             0x0018
+#define DAC_INT_STATUS                          0x001c
+
+/* Bitfields in CTRL */
+#define DAC_SWAP_OFFSET                         30
+#define DAC_SWAP_SIZE                           1
+#define DAC_EN_OFFSET                           31
+#define DAC_EN_SIZE                             1
+
+/* Bitfields in INT_MASK/INT_EN/INT_DIS/INT_STATUS/INT_CLR */
+#define DAC_UNDERRUN_OFFSET                     28
+#define DAC_UNDERRUN_SIZE                       1
+#define DAC_TX_READY_OFFSET                     29
+#define DAC_TX_READY_SIZE                       1
+
+/* Bit manipulation macros */
+#define DAC_BIT(name)					\
+	(1 << DAC_##name##_OFFSET)
+#define DAC_BF(name, value)				\
+	(((value) & ((1 << DAC_##name##_SIZE) - 1))	\
+	 << DAC_##name##_OFFSET)
+#define DAC_BFEXT(name, value)				\
+	(((value) >> DAC_##name##_OFFSET)		\
+	 & ((1 << DAC_##name##_SIZE) - 1))
+#define DAC_BFINS(name, value, old)			\
+	(((old) & ~(((1 << DAC_##name##_SIZE) - 1)	\
+		    << DAC_##name##_OFFSET))		\
+	 | DAC_BF(name, value))
+
+/* Register access macros */
+#define dac_readl(port, reg)				\
+	__raw_readl((port)->regs + DAC_##reg)
+#define dac_writel(port, reg, value)			\
+	__raw_writel((value), (port)->regs + DAC_##reg)
+
+/*
+ * ABDAC supports a maximum of 6 different rates from a generic clock. The
+ * generic clock has a power of two divider, which gives 6 steps from 192 kHz
+ * to 5112 Hz.
+ */
+#define MAX_NUM_RATES	6
+/* ALSA seems to use rates between 192000 Hz and 5112 Hz. */
+#define RATE_MAX	192000
+#define RATE_MIN	5112
+
+enum {
+	DMA_READY = 0,
+};
+
+struct atmel_abdac_dma {
+	struct dma_chan		*chan;
+	struct dw_cyclic_desc	*cdesc;
+};
+
+struct atmel_abdac {
+	struct clk				*pclk;
+	struct clk				*sample_clk;
+	struct platform_device			*pdev;
+	struct atmel_abdac_dma			dma;
+
+	struct snd_pcm_hw_constraint_list	constraints_rates;
+	struct snd_pcm_substream		*substream;
+	struct snd_card				*card;
+	struct snd_pcm				*pcm;
+
+	void __iomem				*regs;
+	unsigned long				flags;
+	unsigned int				rates[MAX_NUM_RATES];
+	unsigned int				rates_num;
+	int					irq;
+};
+
+#define get_dac(card) ((struct atmel_abdac *)(card)->private_data)
+
+/* This function is called by the DMA driver. */
+static void atmel_abdac_dma_period_done(void *arg)
+{
+	struct atmel_abdac *dac = arg;
+	snd_pcm_period_elapsed(dac->substream);
+}
+
+static int atmel_abdac_prepare_dma(struct atmel_abdac *dac,
+		struct snd_pcm_substream *substream,
+		enum dma_data_direction direction)
+{
+	struct dma_chan			*chan = dac->dma.chan;
+	struct dw_cyclic_desc		*cdesc;
+	struct snd_pcm_runtime		*runtime = substream->runtime;
+	unsigned long			buffer_len, period_len;
+
+	/*
+	 * We don't do DMA on "complex" transfers, i.e. with
+	 * non-halfword-aligned buffers or lengths.
+	 */
+	if (runtime->dma_addr & 1 || runtime->buffer_size & 1) {
+		dev_dbg(&dac->pdev->dev, "too complex transfer\n");
+		return -EINVAL;
+	}
+
+	buffer_len = frames_to_bytes(runtime, runtime->buffer_size);
+	period_len = frames_to_bytes(runtime, runtime->period_size);
+
+	cdesc = dw_dma_cyclic_prep(chan, runtime->dma_addr, buffer_len,
+			period_len, DMA_TO_DEVICE);
+	if (IS_ERR(cdesc)) {
+		dev_dbg(&dac->pdev->dev, "could not prepare cyclic DMA\n");
+		return PTR_ERR(cdesc);
+	}
+
+	cdesc->period_callback = atmel_abdac_dma_period_done;
+	cdesc->period_callback_param = dac;
+
+	dac->dma.cdesc = cdesc;
+
+	set_bit(DMA_READY, &dac->flags);
+
+	return 0;
+}
+
+static struct snd_pcm_hardware atmel_abdac_hw = {
+	.info			= (SNDRV_PCM_INFO_MMAP
+				  | SNDRV_PCM_INFO_MMAP_VALID
+				  | SNDRV_PCM_INFO_INTERLEAVED
+				  | SNDRV_PCM_INFO_BLOCK_TRANSFER
+				  | SNDRV_PCM_INFO_RESUME
+				  | SNDRV_PCM_INFO_PAUSE),
+	.formats		= (SNDRV_PCM_FMTBIT_S16_BE),
+	.rates			= (SNDRV_PCM_RATE_KNOT),
+	.rate_min		= RATE_MIN,
+	.rate_max		= RATE_MAX,
+	.channels_min		= 2,
+	.channels_max		= 2,
+	.buffer_bytes_max	= 64 * 4096,
+	.period_bytes_min	= 4096,
+	.period_bytes_max	= 4096,
+	.periods_min		= 4,
+	.periods_max		= 64,
+};
+
+static int atmel_abdac_open(struct snd_pcm_substream *substream)
+{
+	struct atmel_abdac *dac = snd_pcm_substream_chip(substream);
+
+	dac->substream = substream;
+	atmel_abdac_hw.rate_max = dac->rates[dac->rates_num - 1];
+	atmel_abdac_hw.rate_min = dac->rates[0];
+	substream->runtime->hw = atmel_abdac_hw;
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &dac->constraints_rates);
+}
+
+static int atmel_abdac_close(struct snd_pcm_substream *substream)
+{
+	struct atmel_abdac *dac = snd_pcm_substream_chip(substream);
+	dac->substream = NULL;
+	return 0;
+}
+
+static int atmel_abdac_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *hw_params)
+{
+	struct atmel_abdac *dac = snd_pcm_substream_chip(substream);
+	int retval;
+
+	retval = snd_pcm_lib_malloc_pages(substream,
+			params_buffer_bytes(hw_params));
+	if (retval < 0)
+		return retval;
+	/* snd_pcm_lib_malloc_pages returns 1 if buffer is changed. */
+	if (retval == 1)
+		if (test_and_clear_bit(DMA_READY, &dac->flags))
+			dw_dma_cyclic_free(dac->dma.chan);
+
+	return retval;
+}
+
+static int atmel_abdac_hw_free(struct snd_pcm_substream *substream)
+{
+	struct atmel_abdac *dac = snd_pcm_substream_chip(substream);
+	if (test_and_clear_bit(DMA_READY, &dac->flags))
+		dw_dma_cyclic_free(dac->dma.chan);
+	return snd_pcm_lib_free_pages(substream);
+}
+
+static int atmel_abdac_prepare(struct snd_pcm_substream *substream)
+{
+	struct atmel_abdac *dac = snd_pcm_substream_chip(substream);
+	int retval;
+
+	retval = clk_set_rate(dac->sample_clk, 256 * substream->runtime->rate);
+	if (retval)
+		return retval;
+
+	if (!test_bit(DMA_READY, &dac->flags))
+		retval = atmel_abdac_prepare_dma(dac, substream, DMA_TO_DEVICE);
+
+	return retval;
+}
+
+static int atmel_abdac_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct atmel_abdac *dac = snd_pcm_substream_chip(substream);
+	int retval = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
+	case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
+	case SNDRV_PCM_TRIGGER_START:
+		clk_enable(dac->sample_clk);
+		retval = dw_dma_cyclic_start(dac->dma.chan);
+		if (retval)
+			goto out;
+		dac_writel(dac, CTRL, DAC_BIT(EN));
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
+	case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
+	case SNDRV_PCM_TRIGGER_STOP:
+		dw_dma_cyclic_stop(dac->dma.chan);
+		dac_writel(dac, DATA, 0);
+		dac_writel(dac, CTRL, 0);
+		clk_disable(dac->sample_clk);
+		break;
+	default:
+		retval = -EINVAL;
+		break;
+	}
+out:
+	return retval;
+}
+
+static snd_pcm_uframes_t
+atmel_abdac_pointer(struct snd_pcm_substream *substream)
+{
+	struct atmel_abdac	*dac = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime	*runtime = substream->runtime;
+	snd_pcm_uframes_t	frames;
+	unsigned long		bytes;
+
+	bytes = dw_dma_get_src_addr(dac->dma.chan);
+	bytes -= runtime->dma_addr;
+
+	frames = bytes_to_frames(runtime, bytes);
+	if (frames >= runtime->buffer_size)
+		frames -= runtime->buffer_size;
+
+	return frames;
+}
+
+static irqreturn_t abdac_interrupt(int irq, void *dev_id)
+{
+	struct atmel_abdac *dac = dev_id;
+	u32 status;
+
+	status = dac_readl(dac, INT_STATUS);
+	if (status & DAC_BIT(UNDERRUN)) {
+		dev_err(&dac->pdev->dev, "underrun detected\n");
+		dac_writel(dac, INT_CLR, DAC_BIT(UNDERRUN));
+	} else {
+		dev_err(&dac->pdev->dev, "spurious interrupt (status=0x%x)\n",
+			status);
+		dac_writel(dac, INT_CLR, status);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static struct snd_pcm_ops atmel_abdac_ops = {
+	.open		= atmel_abdac_open,
+	.close		= atmel_abdac_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= atmel_abdac_hw_params,
+	.hw_free	= atmel_abdac_hw_free,
+	.prepare	= atmel_abdac_prepare,
+	.trigger	= atmel_abdac_trigger,
+	.pointer	= atmel_abdac_pointer,
+};
+
+static int __devinit atmel_abdac_pcm_new(struct atmel_abdac *dac)
+{
+	struct snd_pcm_hardware hw = atmel_abdac_hw;
+	struct snd_pcm *pcm;
+	int retval;
+
+	retval = snd_pcm_new(dac->card, dac->card->shortname,
+			dac->pdev->id, 1, 0, &pcm);
+	if (retval)
+		return retval;
+
+	strcpy(pcm->name, dac->card->shortname);
+	pcm->private_data = dac;
+	pcm->info_flags = 0;
+	dac->pcm = pcm;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &atmel_abdac_ops);
+
+	retval = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+			&dac->pdev->dev, hw.periods_min * hw.period_bytes_min,
+			hw.buffer_bytes_max);
+
+	return retval;
+}
+
+static bool filter(struct dma_chan *chan, void *slave)
+{
+	struct dw_dma_slave *dws = slave;
+
+	if (dws->dma_dev == chan->device->dev) {
+		chan->private = dws;
+		return true;
+	} else
+		return false;
+}
+
+static int set_sample_rates(struct atmel_abdac *dac)
+{
+	long new_rate = RATE_MAX;
+	int retval = -EINVAL;
+	int index = 0;
+
+	/* we start at 192 kHz and work our way down to 5112 Hz */
+	while (new_rate >= RATE_MIN && index < (MAX_NUM_RATES + 1)) {
+		new_rate = clk_round_rate(dac->sample_clk, 256 * new_rate);
+		if (new_rate < 0)
+			break;
+		/* make sure we are below the ABDAC clock */
+		if (new_rate <= clk_get_rate(dac->pclk)) {
+			dac->rates[index] = new_rate / 256;
+			index++;
+		}
+		/* divide by 256 and then by two to get next rate */
+		new_rate /= 256 * 2;
+	}
+
+	if (index) {
+		int i;
+
+		/* reverse array, smallest go first */
+		for (i = 0; i < (index / 2); i++) {
+			unsigned int tmp = dac->rates[index - 1 - i];
+			dac->rates[index - 1 - i] = dac->rates[i];
+			dac->rates[i] = tmp;
+		}
+
+		dac->constraints_rates.count = index;
+		dac->constraints_rates.list = dac->rates;
+		dac->constraints_rates.mask = 0;
+		dac->rates_num = index;
+
+		retval = 0;
+	}
+
+	return retval;
+}
+
+static int __devinit atmel_abdac_probe(struct platform_device *pdev)
+{
+	struct snd_card		*card;
+	struct atmel_abdac	*dac;
+	struct resource		*regs;
+	struct atmel_abdac_pdata	*pdata;
+	struct clk		*pclk;
+	struct clk		*sample_clk;
+	int			retval;
+	int			irq;
+
+	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!regs) {
+		dev_dbg(&pdev->dev, "no memory resource\n");
+		return -ENXIO;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_dbg(&pdev->dev, "could not get IRQ number\n");
+		return irq;
+	}
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_dbg(&pdev->dev, "no platform data\n");
+		return -ENXIO;
+	}
+
+	pclk = clk_get(&pdev->dev, "pclk");
+	if (IS_ERR(pclk)) {
+		dev_dbg(&pdev->dev, "no peripheral clock\n");
+		return PTR_ERR(pclk);
+	}
+	sample_clk = clk_get(&pdev->dev, "sample_clk");
+	if (IS_ERR(pclk)) {
+		dev_dbg(&pdev->dev, "no sample clock\n");
+		retval = PTR_ERR(pclk);
+		goto out_put_pclk;
+	}
+	clk_enable(pclk);
+
+	retval = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
+			THIS_MODULE, sizeof(struct atmel_abdac), &card);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not create sound card device\n");
+		goto out_put_sample_clk;
+	}
+
+	dac = get_dac(card);
+
+	dac->irq = irq;
+	dac->card = card;
+	dac->pclk = pclk;
+	dac->sample_clk = sample_clk;
+	dac->pdev = pdev;
+
+	retval = set_sample_rates(dac);
+	if (retval < 0) {
+		dev_dbg(&pdev->dev, "could not set supported rates\n");
+		goto out_free_card;
+	}
+
+	dac->regs = ioremap(regs->start, regs->end - regs->start + 1);
+	if (!dac->regs) {
+		dev_dbg(&pdev->dev, "could not remap register memory\n");
+		goto out_free_card;
+	}
+
+	/* make sure the DAC is silent and disabled */
+	dac_writel(dac, DATA, 0);
+	dac_writel(dac, CTRL, 0);
+
+	retval = request_irq(irq, abdac_interrupt, 0, "abdac", dac);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not request irq\n");
+		goto out_unmap_regs;
+	}
+
+	snd_card_set_dev(card, &pdev->dev);
+
+	if (pdata->dws.dma_dev) {
+		struct dw_dma_slave *dws = &pdata->dws;
+		dma_cap_mask_t mask;
+
+		dws->tx_reg = regs->start + DAC_DATA;
+
+		dma_cap_zero(mask);
+		dma_cap_set(DMA_SLAVE, mask);
+
+		dac->dma.chan = dma_request_channel(mask, filter, dws);
+	}
+	if (!pdata->dws.dma_dev || !dac->dma.chan) {
+		dev_dbg(&pdev->dev, "DMA not available\n");
+		retval = -ENODEV;
+		goto out_unset_card_dev;
+	}
+
+	strcpy(card->driver, "Atmel ABDAC");
+	strcpy(card->shortname, "Atmel ABDAC");
+	sprintf(card->longname, "Atmel Audio Bitstream DAC");
+
+	retval = atmel_abdac_pcm_new(dac);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not register ABDAC pcm device\n");
+		goto out_release_dma;
+	}
+
+	retval = snd_card_register(card);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not register sound card\n");
+		goto out_release_dma;
+	}
+
+	platform_set_drvdata(pdev, card);
+
+	dev_info(&pdev->dev, "Atmel ABDAC at 0x%p using %s\n",
+			dac->regs, dac->dma.chan->dev->device.bus_id);
+
+	return retval;
+
+out_release_dma:
+	dma_release_channel(dac->dma.chan);
+	dac->dma.chan = NULL;
+out_unset_card_dev:
+	snd_card_set_dev(card, NULL);
+	free_irq(irq, dac);
+out_unmap_regs:
+	iounmap(dac->regs);
+out_free_card:
+	snd_card_free(card);
+out_put_sample_clk:
+	clk_put(sample_clk);
+	clk_disable(pclk);
+out_put_pclk:
+	clk_put(pclk);
+	return retval;
+}
+
+#ifdef CONFIG_PM
+static int atmel_abdac_suspend(struct platform_device *pdev, pm_message_t msg)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+	struct atmel_abdac *dac = card->private_data;
+
+	dw_dma_cyclic_stop(dac->dma.chan);
+	clk_disable(dac->sample_clk);
+	clk_disable(dac->pclk);
+
+	return 0;
+}
+
+static int atmel_abdac_resume(struct platform_device *pdev)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+	struct atmel_abdac *dac = card->private_data;
+
+	clk_enable(dac->pclk);
+	clk_enable(dac->sample_clk);
+	if (test_bit(DMA_READY, &dac->flags))
+		dw_dma_cyclic_start(dac->dma.chan);
+
+	return 0;
+}
+#else
+#define atmel_abdac_suspend NULL
+#define atmel_abdac_resume NULL
+#endif
+
+static int __devexit atmel_abdac_remove(struct platform_device *pdev)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+	struct atmel_abdac *dac = get_dac(card);
+
+	clk_put(dac->sample_clk);
+	clk_disable(dac->pclk);
+	clk_put(dac->pclk);
+
+	dma_release_channel(dac->dma.chan);
+	dac->dma.chan = NULL;
+	snd_card_set_dev(card, NULL);
+	iounmap(dac->regs);
+	free_irq(dac->irq, dac);
+	snd_card_free(card);
+
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver atmel_abdac_driver = {
+	.remove		= __devexit_p(atmel_abdac_remove),
+	.driver		= {
+		.name	= "atmel_abdac",
+	},
+	.suspend	= atmel_abdac_suspend,
+	.resume		= atmel_abdac_resume,
+};
+
+static int __init atmel_abdac_init(void)
+{
+	return platform_driver_probe(&atmel_abdac_driver,
+			atmel_abdac_probe);
+}
+module_init(atmel_abdac_init);
+
+static void __exit atmel_abdac_exit(void)
+{
+	platform_driver_unregister(&atmel_abdac_driver);
+}
+module_exit(atmel_abdac_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Driver for Atmel Audio Bitstream DAC (ABDAC)");
+MODULE_AUTHOR("Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>");
-- 
cgit v1.2.3


From 4ede028f8716523fc31e0d3d01b81405613dfb8f Mon Sep 17 00:00:00 2001
From: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Date: Thu, 5 Feb 2009 13:11:00 +0100
Subject: ALSA: Add ALSA driver for Atmel AC97 controller

This patch adds ALSA support for the AC97 controller found on Atmel
AVR32 devices.

Tested on ATSTK1006 + ATSTK1000 with a development board with a AC97
codec.

Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/atmel-ac97c.h |  40 ++
 sound/atmel/Kconfig         |   8 +
 sound/atmel/Makefile        |   2 +
 sound/atmel/ac97c.c         | 932 ++++++++++++++++++++++++++++++++++++++++++++
 sound/atmel/ac97c.h         |  71 ++++
 5 files changed, 1053 insertions(+)
 create mode 100644 include/sound/atmel-ac97c.h
 create mode 100644 sound/atmel/ac97c.c
 create mode 100644 sound/atmel/ac97c.h

(limited to 'include')

diff --git a/include/sound/atmel-ac97c.h b/include/sound/atmel-ac97c.h
new file mode 100644
index 000000000000..e6aabdb45865
--- /dev/null
+++ b/include/sound/atmel-ac97c.h
@@ -0,0 +1,40 @@
+/*
+ * Driver for the Atmel AC97C controller
+ *
+ * Copyright (C) 2005-2009 Atmel Corporation
+ *
+ * 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.
+ */
+#ifndef __INCLUDE_SOUND_ATMEL_AC97C_H
+#define __INCLUDE_SOUND_ATMEL_AC97C_H
+
+#include <linux/dw_dmac.h>
+
+#define AC97C_CAPTURE	0x01
+#define AC97C_PLAYBACK	0x02
+#define AC97C_BOTH	(AC97C_CAPTURE | AC97C_PLAYBACK)
+
+/**
+ * struct atmel_ac97c_pdata - board specific AC97C configuration
+ * @rx_dws: DMA slave interface to use for sound capture.
+ * @tx_dws: DMA slave interface to use for sound playback.
+ * @reset_pin: GPIO pin wired to the reset input on the external AC97 codec,
+ *             optional to use, set to -ENODEV if not in use. AC97 layer will
+ *             try to do a software reset of the external codec anyway.
+ * @flags: Flags for which directions should be enabled.
+ *
+ * If the user do not want to use a DMA channel for playback or capture, i.e.
+ * only one feature is required on the board. The slave for playback or capture
+ * can be set to NULL. The AC97C driver will take use of this when setting up
+ * the sound streams.
+ */
+struct ac97c_platform_data {
+	struct dw_dma_slave	rx_dws;
+	struct dw_dma_slave	tx_dws;
+	unsigned int 		flags;
+	int			reset_pin;
+};
+
+#endif /* __INCLUDE_SOUND_ATMEL_AC97C_H */
diff --git a/sound/atmel/Kconfig b/sound/atmel/Kconfig
index 715318e3670f..6c228a91940d 100644
--- a/sound/atmel/Kconfig
+++ b/sound/atmel/Kconfig
@@ -8,4 +8,12 @@ config SND_ATMEL_ABDAC
 	help
 	  ALSA sound driver for the Atmel Audio Bitstream DAC (ABDAC).
 
+config SND_ATMEL_AC97C
+	tristate "Atmel AC97 Controller (AC97C) driver"
+	select SND_PCM
+	select SND_AC97_CODEC
+	depends on DW_DMAC && AVR32
+	help
+	  ALSA sound driver for the Atmel AC97 controller.
+
 endmenu
diff --git a/sound/atmel/Makefile b/sound/atmel/Makefile
index c5a8213f9cb9..219dcfac6086 100644
--- a/sound/atmel/Makefile
+++ b/sound/atmel/Makefile
@@ -1,3 +1,5 @@
 snd-atmel-abdac-objs		:= abdac.o
+snd-atmel-ac97c-objs		:= ac97c.o
 
 obj-$(CONFIG_SND_ATMEL_ABDAC)	+= snd-atmel-abdac.o
+obj-$(CONFIG_SND_ATMEL_AC97C)	+= snd-atmel-ac97c.o
diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
new file mode 100644
index 000000000000..dd72e00e5ae1
--- /dev/null
+++ b/sound/atmel/ac97c.c
@@ -0,0 +1,932 @@
+/*
+ * Driver for the Atmel AC97C controller
+ *
+ * Copyright (C) 2005-2009 Atmel Corporation
+ *
+ * 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.
+ */
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/bitmap.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/ac97_codec.h>
+#include <sound/atmel-ac97c.h>
+#include <sound/memalloc.h>
+
+#include <linux/dw_dmac.h>
+
+#include "ac97c.h"
+
+enum {
+	DMA_TX_READY = 0,
+	DMA_RX_READY,
+	DMA_TX_CHAN_PRESENT,
+	DMA_RX_CHAN_PRESENT,
+};
+
+/* Serialize access to opened variable */
+static DEFINE_MUTEX(opened_mutex);
+
+struct atmel_ac97c_dma {
+	struct dma_chan			*rx_chan;
+	struct dma_chan			*tx_chan;
+};
+
+struct atmel_ac97c {
+	struct clk			*pclk;
+	struct platform_device		*pdev;
+	struct atmel_ac97c_dma		dma;
+
+	struct snd_pcm_substream	*playback_substream;
+	struct snd_pcm_substream	*capture_substream;
+	struct snd_card			*card;
+	struct snd_pcm			*pcm;
+	struct snd_ac97			*ac97;
+	struct snd_ac97_bus		*ac97_bus;
+
+	u64				cur_format;
+	unsigned int			cur_rate;
+	unsigned long			flags;
+	/* Serialize access to opened variable */
+	spinlock_t			lock;
+	void __iomem			*regs;
+	int				opened;
+	int				reset_pin;
+};
+
+#define get_chip(card) ((struct atmel_ac97c *)(card)->private_data)
+
+#define ac97c_writel(chip, reg, val)			\
+	__raw_writel((val), (chip)->regs + AC97C_##reg)
+#define ac97c_readl(chip, reg)				\
+	__raw_readl((chip)->regs + AC97C_##reg)
+
+/* This function is called by the DMA driver. */
+static void atmel_ac97c_dma_playback_period_done(void *arg)
+{
+	struct atmel_ac97c *chip = arg;
+	snd_pcm_period_elapsed(chip->playback_substream);
+}
+
+static void atmel_ac97c_dma_capture_period_done(void *arg)
+{
+	struct atmel_ac97c *chip = arg;
+	snd_pcm_period_elapsed(chip->capture_substream);
+}
+
+static int atmel_ac97c_prepare_dma(struct atmel_ac97c *chip,
+		struct snd_pcm_substream *substream,
+		enum dma_data_direction direction)
+{
+	struct dma_chan			*chan;
+	struct dw_cyclic_desc		*cdesc;
+	struct snd_pcm_runtime		*runtime = substream->runtime;
+	unsigned long			buffer_len, period_len;
+
+	/*
+	 * We don't do DMA on "complex" transfers, i.e. with
+	 * non-halfword-aligned buffers or lengths.
+	 */
+	if (runtime->dma_addr & 1 || runtime->buffer_size & 1) {
+		dev_dbg(&chip->pdev->dev, "too complex transfer\n");
+		return -EINVAL;
+	}
+
+	if (direction == DMA_TO_DEVICE)
+		chan = chip->dma.tx_chan;
+	else
+		chan = chip->dma.rx_chan;
+
+	buffer_len = frames_to_bytes(runtime, runtime->buffer_size);
+	period_len = frames_to_bytes(runtime, runtime->period_size);
+
+	cdesc = dw_dma_cyclic_prep(chan, runtime->dma_addr, buffer_len,
+			period_len, direction);
+	if (IS_ERR(cdesc)) {
+		dev_dbg(&chip->pdev->dev, "could not prepare cyclic DMA\n");
+		return PTR_ERR(cdesc);
+	}
+
+	if (direction == DMA_TO_DEVICE) {
+		cdesc->period_callback = atmel_ac97c_dma_playback_period_done;
+		set_bit(DMA_TX_READY, &chip->flags);
+	} else {
+		cdesc->period_callback = atmel_ac97c_dma_capture_period_done;
+		set_bit(DMA_RX_READY, &chip->flags);
+	}
+
+	cdesc->period_callback_param = chip;
+
+	return 0;
+}
+
+static struct snd_pcm_hardware atmel_ac97c_hw = {
+	.info			= (SNDRV_PCM_INFO_MMAP
+				  | SNDRV_PCM_INFO_MMAP_VALID
+				  | SNDRV_PCM_INFO_INTERLEAVED
+				  | SNDRV_PCM_INFO_BLOCK_TRANSFER
+				  | SNDRV_PCM_INFO_JOINT_DUPLEX
+				  | SNDRV_PCM_INFO_RESUME
+				  | SNDRV_PCM_INFO_PAUSE),
+	.formats		= (SNDRV_PCM_FMTBIT_S16_BE
+				  | SNDRV_PCM_FMTBIT_S16_LE),
+	.rates			= (SNDRV_PCM_RATE_CONTINUOUS),
+	.rate_min		= 4000,
+	.rate_max		= 48000,
+	.channels_min		= 1,
+	.channels_max		= 2,
+	.buffer_bytes_max	= 64 * 4096,
+	.period_bytes_min	= 4096,
+	.period_bytes_max	= 4096,
+	.periods_min		= 4,
+	.periods_max		= 64,
+};
+
+static int atmel_ac97c_playback_open(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	mutex_lock(&opened_mutex);
+	chip->opened++;
+	runtime->hw = atmel_ac97c_hw;
+	if (chip->cur_rate) {
+		runtime->hw.rate_min = chip->cur_rate;
+		runtime->hw.rate_max = chip->cur_rate;
+	}
+	if (chip->cur_format)
+		runtime->hw.formats = (1ULL << chip->cur_format);
+	mutex_unlock(&opened_mutex);
+	chip->playback_substream = substream;
+	return 0;
+}
+
+static int atmel_ac97c_capture_open(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	mutex_lock(&opened_mutex);
+	chip->opened++;
+	runtime->hw = atmel_ac97c_hw;
+	if (chip->cur_rate) {
+		runtime->hw.rate_min = chip->cur_rate;
+		runtime->hw.rate_max = chip->cur_rate;
+	}
+	if (chip->cur_format)
+		runtime->hw.formats = (1ULL << chip->cur_format);
+	mutex_unlock(&opened_mutex);
+	chip->capture_substream = substream;
+	return 0;
+}
+
+static int atmel_ac97c_playback_close(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+
+	mutex_lock(&opened_mutex);
+	chip->opened--;
+	if (!chip->opened) {
+		chip->cur_rate = 0;
+		chip->cur_format = 0;
+	}
+	mutex_unlock(&opened_mutex);
+
+	chip->playback_substream = NULL;
+
+	return 0;
+}
+
+static int atmel_ac97c_capture_close(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+
+	mutex_lock(&opened_mutex);
+	chip->opened--;
+	if (!chip->opened) {
+		chip->cur_rate = 0;
+		chip->cur_format = 0;
+	}
+	mutex_unlock(&opened_mutex);
+
+	chip->capture_substream = NULL;
+
+	return 0;
+}
+
+static int atmel_ac97c_playback_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *hw_params)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	int retval;
+
+	retval = snd_pcm_lib_malloc_pages(substream,
+					params_buffer_bytes(hw_params));
+	if (retval < 0)
+		return retval;
+	/* snd_pcm_lib_malloc_pages returns 1 if buffer is changed. */
+	if (retval == 1)
+		if (test_and_clear_bit(DMA_TX_READY, &chip->flags))
+			dw_dma_cyclic_free(chip->dma.tx_chan);
+
+	/* Set restrictions to params. */
+	mutex_lock(&opened_mutex);
+	chip->cur_rate = params_rate(hw_params);
+	chip->cur_format = params_format(hw_params);
+	mutex_unlock(&opened_mutex);
+
+	return retval;
+}
+
+static int atmel_ac97c_capture_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *hw_params)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	int retval;
+
+	retval = snd_pcm_lib_malloc_pages(substream,
+					params_buffer_bytes(hw_params));
+	if (retval < 0)
+		return retval;
+	/* snd_pcm_lib_malloc_pages returns 1 if buffer is changed. */
+	if (retval == 1)
+		if (test_and_clear_bit(DMA_RX_READY, &chip->flags))
+			dw_dma_cyclic_free(chip->dma.rx_chan);
+
+	/* Set restrictions to params. */
+	mutex_lock(&opened_mutex);
+	chip->cur_rate = params_rate(hw_params);
+	chip->cur_format = params_format(hw_params);
+	mutex_unlock(&opened_mutex);
+
+	return retval;
+}
+
+static int atmel_ac97c_playback_hw_free(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	if (test_and_clear_bit(DMA_TX_READY, &chip->flags))
+		dw_dma_cyclic_free(chip->dma.tx_chan);
+	return snd_pcm_lib_free_pages(substream);
+}
+
+static int atmel_ac97c_capture_hw_free(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	if (test_and_clear_bit(DMA_RX_READY, &chip->flags))
+		dw_dma_cyclic_free(chip->dma.rx_chan);
+	return snd_pcm_lib_free_pages(substream);
+}
+
+static int atmel_ac97c_playback_prepare(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	unsigned long word = 0;
+	int retval;
+
+	/* assign channels to AC97C channel A */
+	switch (runtime->channels) {
+	case 1:
+		word |= AC97C_CH_ASSIGN(PCM_LEFT, A);
+		break;
+	case 2:
+		word |= AC97C_CH_ASSIGN(PCM_LEFT, A)
+			| AC97C_CH_ASSIGN(PCM_RIGHT, A);
+		break;
+	default:
+		/* TODO: support more than two channels */
+		return -EINVAL;
+		break;
+	}
+	ac97c_writel(chip, OCA, word);
+
+	/* configure sample format and size */
+	word = AC97C_CMR_DMAEN | AC97C_CMR_SIZE_16;
+
+	switch (runtime->format) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		word |= AC97C_CMR_CEM_LITTLE;
+		break;
+	case SNDRV_PCM_FORMAT_S16_BE: /* fall through */
+	default:
+		word &= ~(AC97C_CMR_CEM_LITTLE);
+		break;
+	}
+
+	ac97c_writel(chip, CAMR, word);
+
+	/* set variable rate if needed */
+	if (runtime->rate != 48000) {
+		word = ac97c_readl(chip, MR);
+		word |= AC97C_MR_VRA;
+		ac97c_writel(chip, MR, word);
+	} else {
+		word = ac97c_readl(chip, MR);
+		word &= ~(AC97C_MR_VRA);
+		ac97c_writel(chip, MR, word);
+	}
+
+	retval = snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
+			runtime->rate);
+	if (retval)
+		dev_dbg(&chip->pdev->dev, "could not set rate %d Hz\n",
+				runtime->rate);
+
+	if (!test_bit(DMA_TX_READY, &chip->flags))
+		retval = atmel_ac97c_prepare_dma(chip, substream,
+				DMA_TO_DEVICE);
+
+	return retval;
+}
+
+static int atmel_ac97c_capture_prepare(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	unsigned long word = 0;
+	int retval;
+
+	/* assign channels to AC97C channel A */
+	switch (runtime->channels) {
+	case 1:
+		word |= AC97C_CH_ASSIGN(PCM_LEFT, A);
+		break;
+	case 2:
+		word |= AC97C_CH_ASSIGN(PCM_LEFT, A)
+			| AC97C_CH_ASSIGN(PCM_RIGHT, A);
+		break;
+	default:
+		/* TODO: support more than two channels */
+		return -EINVAL;
+		break;
+	}
+	ac97c_writel(chip, ICA, word);
+
+	/* configure sample format and size */
+	word = AC97C_CMR_DMAEN | AC97C_CMR_SIZE_16;
+
+	switch (runtime->format) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		word |= AC97C_CMR_CEM_LITTLE;
+		break;
+	case SNDRV_PCM_FORMAT_S16_BE: /* fall through */
+	default:
+		word &= ~(AC97C_CMR_CEM_LITTLE);
+		break;
+	}
+
+	ac97c_writel(chip, CAMR, word);
+
+	/* set variable rate if needed */
+	if (runtime->rate != 48000) {
+		word = ac97c_readl(chip, MR);
+		word |= AC97C_MR_VRA;
+		ac97c_writel(chip, MR, word);
+	} else {
+		word = ac97c_readl(chip, MR);
+		word &= ~(AC97C_MR_VRA);
+		ac97c_writel(chip, MR, word);
+	}
+
+	retval = snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE,
+			runtime->rate);
+	if (retval)
+		dev_dbg(&chip->pdev->dev, "could not set rate %d Hz\n",
+				runtime->rate);
+
+	if (!test_bit(DMA_RX_READY, &chip->flags))
+		retval = atmel_ac97c_prepare_dma(chip, substream,
+				DMA_FROM_DEVICE);
+
+	return retval;
+}
+
+static int
+atmel_ac97c_playback_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	unsigned long camr;
+	int retval = 0;
+
+	camr = ac97c_readl(chip, CAMR);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
+	case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
+	case SNDRV_PCM_TRIGGER_START:
+		retval = dw_dma_cyclic_start(chip->dma.tx_chan);
+		if (retval)
+			goto out;
+		camr |= AC97C_CMR_CENA;
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
+	case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
+	case SNDRV_PCM_TRIGGER_STOP:
+		dw_dma_cyclic_stop(chip->dma.tx_chan);
+		if (chip->opened <= 1)
+			camr &= ~AC97C_CMR_CENA;
+		break;
+	default:
+		retval = -EINVAL;
+		goto out;
+	}
+
+	ac97c_writel(chip, CAMR, camr);
+out:
+	return retval;
+}
+
+static int
+atmel_ac97c_capture_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
+	unsigned long camr;
+	int retval = 0;
+
+	camr = ac97c_readl(chip, CAMR);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
+	case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
+	case SNDRV_PCM_TRIGGER_START:
+		retval = dw_dma_cyclic_start(chip->dma.rx_chan);
+		if (retval)
+			goto out;
+		camr |= AC97C_CMR_CENA;
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
+	case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
+	case SNDRV_PCM_TRIGGER_STOP:
+		dw_dma_cyclic_stop(chip->dma.rx_chan);
+		if (chip->opened <= 1)
+			camr &= ~AC97C_CMR_CENA;
+		break;
+	default:
+		retval = -EINVAL;
+		break;
+	}
+
+	ac97c_writel(chip, CAMR, camr);
+out:
+	return retval;
+}
+
+static snd_pcm_uframes_t
+atmel_ac97c_playback_pointer(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c	*chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime	*runtime = substream->runtime;
+	snd_pcm_uframes_t	frames;
+	unsigned long		bytes;
+
+	bytes = dw_dma_get_src_addr(chip->dma.tx_chan);
+	bytes -= runtime->dma_addr;
+
+	frames = bytes_to_frames(runtime, bytes);
+	if (frames >= runtime->buffer_size)
+		frames -= runtime->buffer_size;
+	return frames;
+}
+
+static snd_pcm_uframes_t
+atmel_ac97c_capture_pointer(struct snd_pcm_substream *substream)
+{
+	struct atmel_ac97c	*chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime	*runtime = substream->runtime;
+	snd_pcm_uframes_t	frames;
+	unsigned long		bytes;
+
+	bytes = dw_dma_get_dst_addr(chip->dma.rx_chan);
+	bytes -= runtime->dma_addr;
+
+	frames = bytes_to_frames(runtime, bytes);
+	if (frames >= runtime->buffer_size)
+		frames -= runtime->buffer_size;
+	return frames;
+}
+
+static struct snd_pcm_ops atmel_ac97_playback_ops = {
+	.open		= atmel_ac97c_playback_open,
+	.close		= atmel_ac97c_playback_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= atmel_ac97c_playback_hw_params,
+	.hw_free	= atmel_ac97c_playback_hw_free,
+	.prepare	= atmel_ac97c_playback_prepare,
+	.trigger	= atmel_ac97c_playback_trigger,
+	.pointer	= atmel_ac97c_playback_pointer,
+};
+
+static struct snd_pcm_ops atmel_ac97_capture_ops = {
+	.open		= atmel_ac97c_capture_open,
+	.close		= atmel_ac97c_capture_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= atmel_ac97c_capture_hw_params,
+	.hw_free	= atmel_ac97c_capture_hw_free,
+	.prepare	= atmel_ac97c_capture_prepare,
+	.trigger	= atmel_ac97c_capture_trigger,
+	.pointer	= atmel_ac97c_capture_pointer,
+};
+
+static int __devinit atmel_ac97c_pcm_new(struct atmel_ac97c *chip)
+{
+	struct snd_pcm		*pcm;
+	struct snd_pcm_hardware	hw = atmel_ac97c_hw;
+	int			capture, playback, retval;
+
+	capture = test_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
+	playback = test_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
+
+	retval = snd_pcm_new(chip->card, chip->card->shortname,
+			chip->pdev->id, playback, capture, &pcm);
+	if (retval)
+		return retval;
+
+	if (capture)
+		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+				&atmel_ac97_capture_ops);
+	if (playback)
+		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+				&atmel_ac97_playback_ops);
+
+	retval = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+			&chip->pdev->dev, hw.periods_min * hw.period_bytes_min,
+			hw.buffer_bytes_max);
+	if (retval)
+		return retval;
+
+	pcm->private_data = chip;
+	pcm->info_flags = 0;
+	strcpy(pcm->name, chip->card->shortname);
+	chip->pcm = pcm;
+
+	return 0;
+}
+
+static int atmel_ac97c_mixer_new(struct atmel_ac97c *chip)
+{
+	struct snd_ac97_template template;
+	memset(&template, 0, sizeof(template));
+	template.private_data = chip;
+	return snd_ac97_mixer(chip->ac97_bus, &template, &chip->ac97);
+}
+
+static void atmel_ac97c_write(struct snd_ac97 *ac97, unsigned short reg,
+		unsigned short val)
+{
+	struct atmel_ac97c *chip = get_chip(ac97);
+	unsigned long word;
+	int timeout = 40;
+
+	word = (reg & 0x7f) << 16 | val;
+
+	do {
+		if (ac97c_readl(chip, COSR) & AC97C_CSR_TXRDY) {
+			ac97c_writel(chip, COTHR, word);
+			return;
+		}
+		udelay(1);
+	} while (--timeout);
+
+	dev_dbg(&chip->pdev->dev, "codec write timeout\n");
+}
+
+static unsigned short atmel_ac97c_read(struct snd_ac97 *ac97,
+		unsigned short reg)
+{
+	struct atmel_ac97c *chip = get_chip(ac97);
+	unsigned long word;
+	int timeout = 40;
+	int write = 10;
+
+	word = (0x80 | (reg & 0x7f)) << 16;
+
+	if ((ac97c_readl(chip, COSR) & AC97C_CSR_RXRDY) != 0)
+		ac97c_readl(chip, CORHR);
+
+retry_write:
+	timeout = 40;
+
+	do {
+		if ((ac97c_readl(chip, COSR) & AC97C_CSR_TXRDY) != 0) {
+			ac97c_writel(chip, COTHR, word);
+			goto read_reg;
+		}
+		udelay(10);
+	} while (--timeout);
+
+	if (!--write)
+		goto timed_out;
+	goto retry_write;
+
+read_reg:
+	do {
+		if ((ac97c_readl(chip, COSR) & AC97C_CSR_RXRDY) != 0) {
+			unsigned short val = ac97c_readl(chip, CORHR);
+			return val;
+		}
+		udelay(10);
+	} while (--timeout);
+
+	if (!--write)
+		goto timed_out;
+	goto retry_write;
+
+timed_out:
+	dev_dbg(&chip->pdev->dev, "codec read timeout\n");
+	return 0xffff;
+}
+
+static bool filter(struct dma_chan *chan, void *slave)
+{
+	struct dw_dma_slave *dws = slave;
+
+	if (dws->dma_dev == chan->device->dev) {
+		chan->private = dws;
+		return true;
+	} else
+		return false;
+}
+
+static void atmel_ac97c_reset(struct atmel_ac97c *chip)
+{
+	ac97c_writel(chip, MR, AC97C_MR_WRST);
+
+	if (gpio_is_valid(chip->reset_pin)) {
+		gpio_set_value(chip->reset_pin, 0);
+		/* AC97 v2.2 specifications says minimum 1 us. */
+		udelay(10);
+		gpio_set_value(chip->reset_pin, 1);
+	}
+
+	udelay(1);
+	ac97c_writel(chip, MR, AC97C_MR_ENA);
+}
+
+static int __devinit atmel_ac97c_probe(struct platform_device *pdev)
+{
+	struct snd_card			*card;
+	struct atmel_ac97c		*chip;
+	struct resource			*regs;
+	struct ac97c_platform_data	*pdata;
+	struct clk			*pclk;
+	static struct snd_ac97_bus_ops	ops = {
+		.write	= atmel_ac97c_write,
+		.read	= atmel_ac97c_read,
+	};
+	int				retval;
+
+	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!regs) {
+		dev_dbg(&pdev->dev, "no memory resource\n");
+		return -ENXIO;
+	}
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_dbg(&pdev->dev, "no platform data\n");
+		return -ENXIO;
+	}
+
+	pclk = clk_get(&pdev->dev, "pclk");
+	if (IS_ERR(pclk)) {
+		dev_dbg(&pdev->dev, "no peripheral clock\n");
+		return PTR_ERR(pclk);
+	}
+	clk_enable(pclk);
+
+	retval = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
+			THIS_MODULE, sizeof(struct atmel_ac97c), &card);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not create sound card device\n");
+		goto err_snd_card_new;
+	}
+
+	chip = get_chip(card);
+
+	spin_lock_init(&chip->lock);
+
+	strcpy(card->driver, "Atmel AC97C");
+	strcpy(card->shortname, "Atmel AC97C");
+	sprintf(card->longname, "Atmel AC97 controller");
+
+	chip->card = card;
+	chip->pclk = pclk;
+	chip->pdev = pdev;
+	chip->regs = ioremap(regs->start, regs->end - regs->start + 1);
+
+	if (!chip->regs) {
+		dev_dbg(&pdev->dev, "could not remap register memory\n");
+		goto err_ioremap;
+	}
+
+	if (gpio_is_valid(pdata->reset_pin)) {
+		if (gpio_request(pdata->reset_pin, "reset_pin")) {
+			dev_dbg(&pdev->dev, "reset pin not available\n");
+			chip->reset_pin = -ENODEV;
+		} else {
+			gpio_direction_output(pdata->reset_pin, 1);
+			chip->reset_pin = pdata->reset_pin;
+		}
+	}
+
+	snd_card_set_dev(card, &pdev->dev);
+
+	retval = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not register on ac97 bus\n");
+		goto err_ac97_bus;
+	}
+
+	atmel_ac97c_reset(chip);
+
+	retval = atmel_ac97c_mixer_new(chip);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not register ac97 mixer\n");
+		goto err_ac97_bus;
+	}
+
+	if (pdata->rx_dws.dma_dev) {
+		struct dw_dma_slave *dws = &pdata->rx_dws;
+		dma_cap_mask_t mask;
+
+		dws->rx_reg = regs->start + AC97C_CARHR + 2;
+
+		dma_cap_zero(mask);
+		dma_cap_set(DMA_SLAVE, mask);
+
+		chip->dma.rx_chan = dma_request_channel(mask, filter, dws);
+
+		dev_info(&chip->pdev->dev, "using %s for DMA RX\n",
+					chip->dma.rx_chan->dev->device.bus_id);
+		set_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
+	}
+
+	if (pdata->tx_dws.dma_dev) {
+		struct dw_dma_slave *dws = &pdata->tx_dws;
+		dma_cap_mask_t mask;
+
+		dws->tx_reg = regs->start + AC97C_CATHR + 2;
+
+		dma_cap_zero(mask);
+		dma_cap_set(DMA_SLAVE, mask);
+
+		chip->dma.tx_chan = dma_request_channel(mask, filter, dws);
+
+		dev_info(&chip->pdev->dev, "using %s for DMA TX\n",
+					chip->dma.tx_chan->dev->device.bus_id);
+		set_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
+	}
+
+	if (!test_bit(DMA_RX_CHAN_PRESENT, &chip->flags) &&
+			!test_bit(DMA_TX_CHAN_PRESENT, &chip->flags)) {
+		dev_dbg(&pdev->dev, "DMA not available\n");
+		retval = -ENODEV;
+		goto err_dma;
+	}
+
+	retval = atmel_ac97c_pcm_new(chip);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not register ac97 pcm device\n");
+		goto err_dma;
+	}
+
+	retval = snd_card_register(card);
+	if (retval) {
+		dev_dbg(&pdev->dev, "could not register sound card\n");
+		goto err_ac97_bus;
+	}
+
+	platform_set_drvdata(pdev, card);
+
+	dev_info(&pdev->dev, "Atmel AC97 controller at 0x%p\n",
+			chip->regs);
+
+	return 0;
+
+err_dma:
+	if (test_bit(DMA_RX_CHAN_PRESENT, &chip->flags))
+		dma_release_channel(chip->dma.rx_chan);
+	if (test_bit(DMA_TX_CHAN_PRESENT, &chip->flags))
+		dma_release_channel(chip->dma.tx_chan);
+	clear_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
+	clear_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
+	chip->dma.rx_chan = NULL;
+	chip->dma.tx_chan = NULL;
+err_ac97_bus:
+	snd_card_set_dev(card, NULL);
+
+	if (gpio_is_valid(chip->reset_pin))
+		gpio_free(chip->reset_pin);
+
+	iounmap(chip->regs);
+err_ioremap:
+	snd_card_free(card);
+err_snd_card_new:
+	clk_disable(pclk);
+	clk_put(pclk);
+	return retval;
+}
+
+#ifdef CONFIG_PM
+static int atmel_ac97c_suspend(struct platform_device *pdev, pm_message_t msg)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+	struct atmel_ac97c *chip = card->private_data;
+
+	if (test_bit(DMA_RX_READY, &chip->flags))
+		dw_dma_cyclic_stop(chip->dma.rx_chan);
+	if (test_bit(DMA_TX_READY, &chip->flags))
+		dw_dma_cyclic_stop(chip->dma.tx_chan);
+	clk_disable(chip->pclk);
+
+	return 0;
+}
+
+static int atmel_ac97c_resume(struct platform_device *pdev)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+	struct atmel_ac97c *chip = card->private_data;
+
+	clk_enable(chip->pclk);
+	if (test_bit(DMA_RX_READY, &chip->flags))
+		dw_dma_cyclic_start(chip->dma.rx_chan);
+	if (test_bit(DMA_TX_READY, &chip->flags))
+		dw_dma_cyclic_start(chip->dma.tx_chan);
+
+	return 0;
+}
+#else
+#define atmel_ac97c_suspend NULL
+#define atmel_ac97c_resume NULL
+#endif
+
+static int __devexit atmel_ac97c_remove(struct platform_device *pdev)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+	struct atmel_ac97c *chip = get_chip(card);
+
+	if (gpio_is_valid(chip->reset_pin))
+		gpio_free(chip->reset_pin);
+
+	clk_disable(chip->pclk);
+	clk_put(chip->pclk);
+	iounmap(chip->regs);
+
+	if (test_bit(DMA_RX_CHAN_PRESENT, &chip->flags))
+		dma_release_channel(chip->dma.rx_chan);
+	if (test_bit(DMA_TX_CHAN_PRESENT, &chip->flags))
+		dma_release_channel(chip->dma.tx_chan);
+	clear_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
+	clear_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
+	chip->dma.rx_chan = NULL;
+	chip->dma.tx_chan = NULL;
+
+	snd_card_set_dev(card, NULL);
+	snd_card_free(card);
+
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver atmel_ac97c_driver = {
+	.remove		= __devexit_p(atmel_ac97c_remove),
+	.driver		= {
+		.name	= "atmel_ac97c",
+	},
+	.suspend	= atmel_ac97c_suspend,
+	.resume		= atmel_ac97c_resume,
+};
+
+static int __init atmel_ac97c_init(void)
+{
+	return platform_driver_probe(&atmel_ac97c_driver,
+			atmel_ac97c_probe);
+}
+module_init(atmel_ac97c_init);
+
+static void __exit atmel_ac97c_exit(void)
+{
+	platform_driver_unregister(&atmel_ac97c_driver);
+}
+module_exit(atmel_ac97c_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Driver for Atmel AC97 controller");
+MODULE_AUTHOR("Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>");
diff --git a/sound/atmel/ac97c.h b/sound/atmel/ac97c.h
new file mode 100644
index 000000000000..c17bd5825980
--- /dev/null
+++ b/sound/atmel/ac97c.h
@@ -0,0 +1,71 @@
+/*
+ * Register definitions for the Atmel AC97C controller
+ *
+ * Copyright (C) 2005-2009 Atmel Corporation
+ *
+ * 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.
+ */
+#ifndef __SOUND_ATMEL_AC97C_H
+#define __SOUND_ATMEL_AC97C_H
+
+#define AC97C_MR		0x08
+#define AC97C_ICA		0x10
+#define AC97C_OCA		0x14
+#define AC97C_CARHR		0x20
+#define AC97C_CATHR		0x24
+#define AC97C_CASR		0x28
+#define AC97C_CAMR		0x2c
+#define AC97C_CBRHR		0x30
+#define AC97C_CBTHR		0x34
+#define AC97C_CBSR		0x38
+#define AC97C_CBMR		0x3c
+#define AC97C_CORHR		0x40
+#define AC97C_COTHR		0x44
+#define AC97C_COSR		0x48
+#define AC97C_COMR		0x4c
+#define AC97C_SR		0x50
+#define AC97C_IER		0x54
+#define AC97C_IDR		0x58
+#define AC97C_IMR		0x5c
+#define AC97C_VERSION		0xfc
+
+#define AC97C_CATPR		PDC_TPR
+#define AC97C_CATCR		PDC_TCR
+#define AC97C_CATNPR		PDC_TNPR
+#define AC97C_CATNCR		PDC_TNCR
+#define AC97C_CARPR		PDC_RPR
+#define AC97C_CARCR		PDC_RCR
+#define AC97C_CARNPR		PDC_RNPR
+#define AC97C_CARNCR		PDC_RNCR
+#define AC97C_PTCR		PDC_PTCR
+
+#define AC97C_MR_ENA		(1 << 0)
+#define AC97C_MR_WRST		(1 << 1)
+#define AC97C_MR_VRA		(1 << 2)
+
+#define AC97C_CSR_TXRDY		(1 << 0)
+#define AC97C_CSR_UNRUN		(1 << 2)
+#define AC97C_CSR_RXRDY		(1 << 4)
+#define AC97C_CSR_ENDTX		(1 << 10)
+#define AC97C_CSR_ENDRX		(1 << 14)
+
+#define AC97C_CMR_SIZE_20	(0 << 16)
+#define AC97C_CMR_SIZE_18	(1 << 16)
+#define AC97C_CMR_SIZE_16	(2 << 16)
+#define AC97C_CMR_SIZE_10	(3 << 16)
+#define AC97C_CMR_CEM_LITTLE	(1 << 18)
+#define AC97C_CMR_CEM_BIG	(0 << 18)
+#define AC97C_CMR_CENA		(1 << 21)
+#define AC97C_CMR_DMAEN		(1 << 22)
+
+#define AC97C_SR_CAEVT		(1 << 3)
+
+#define AC97C_CH_ASSIGN(slot, channel)					\
+	(AC97C_CHANNEL_##channel << (3 * (AC97_SLOT_##slot - 3)))
+#define AC97C_CHANNEL_NONE	0x0
+#define AC97C_CHANNEL_A		0x1
+#define AC97C_CHANNEL_B		0x2
+
+#endif /* __SOUND_ATMEL_AC97C_H */
-- 
cgit v1.2.3


From 6146f0d5e47ca4047ffded0fb79b6c25359b386c Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Wed, 4 Feb 2009 09:06:57 -0500
Subject: integrity: IMA hooks

This patch replaces the generic integrity hooks, for which IMA registered
itself, with IMA integrity hooks in the appropriate places directly
in the fs directory.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 Documentation/kernel-parameters.txt |  1 +
 fs/exec.c                           | 10 +++++++++
 fs/file_table.c                     |  2 ++
 fs/inode.c                          | 24 ++++++++++++++------
 fs/namei.c                          |  8 +++++++
 include/linux/ima.h                 | 44 +++++++++++++++++++++++++++++++++++++
 mm/mmap.c                           |  4 ++++
 7 files changed, 86 insertions(+), 7 deletions(-)
 create mode 100644 include/linux/ima.h

(limited to 'include')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index a2d8805c03d5..7c67b94d1823 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -44,6 +44,7 @@ parameter is applicable:
 	FB	The frame buffer device is enabled.
 	HW	Appropriate hardware is enabled.
 	IA-64	IA-64 architecture is enabled.
+	IMA     Integrity measurement architecture is enabled.
 	IOSCHED	More than one I/O scheduler is enabled.
 	IP_PNP	IP DHCP, BOOTP, or RARP is enabled.
 	ISAPNP	ISA PnP code is enabled.
diff --git a/fs/exec.c b/fs/exec.c
index 02d2e120542d..9c789a525cc4 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -45,6 +45,7 @@
 #include <linux/proc_fs.h>
 #include <linux/mount.h>
 #include <linux/security.h>
+#include <linux/ima.h>
 #include <linux/syscalls.h>
 #include <linux/tsacct_kern.h>
 #include <linux/cn_proc.h>
@@ -128,6 +129,9 @@ asmlinkage long sys_uselib(const char __user * library)
 		goto exit;
 
 	error = vfs_permission(&nd, MAY_READ | MAY_EXEC | MAY_OPEN);
+	if (error)
+		goto exit;
+	error = ima_path_check(&nd.path, MAY_READ | MAY_EXEC | MAY_OPEN);
 	if (error)
 		goto exit;
 
@@ -681,6 +685,9 @@ struct file *open_exec(const char *name)
 		goto out_path_put;
 
 	err = vfs_permission(&nd, MAY_EXEC | MAY_OPEN);
+	if (err)
+		goto out_path_put;
+	err = ima_path_check(&nd.path, MAY_EXEC | MAY_OPEN);
 	if (err)
 		goto out_path_put;
 
@@ -1207,6 +1214,9 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
 	}
 #endif
 	retval = security_bprm_check(bprm);
+	if (retval)
+		return retval;
+	retval = ima_bprm_check(bprm);
 	if (retval)
 		return retval;
 
diff --git a/fs/file_table.c b/fs/file_table.c
index 0fbcacc3ea75..55895ccc08c6 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/security.h>
+#include <linux/ima.h>
 #include <linux/eventpoll.h>
 #include <linux/rcupdate.h>
 #include <linux/mount.h>
@@ -276,6 +277,7 @@ void __fput(struct file *file)
 	if (file->f_op && file->f_op->release)
 		file->f_op->release(inode, file);
 	security_file_free(file);
+	ima_file_free(file);
 	if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL))
 		cdev_put(inode->i_cdev);
 	fops_put(file->f_op);
diff --git a/fs/inode.c b/fs/inode.c
index 098a2443196f..ed22b14f2202 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -17,6 +17,7 @@
 #include <linux/hash.h>
 #include <linux/swap.h>
 #include <linux/security.h>
+#include <linux/ima.h>
 #include <linux/pagemap.h>
 #include <linux/cdev.h>
 #include <linux/bootmem.h>
@@ -144,13 +145,13 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode)
 	inode->i_cdev = NULL;
 	inode->i_rdev = 0;
 	inode->dirtied_when = 0;
-	if (security_inode_alloc(inode)) {
-		if (inode->i_sb->s_op->destroy_inode)
-			inode->i_sb->s_op->destroy_inode(inode);
-		else
-			kmem_cache_free(inode_cachep, (inode));
-		return NULL;
-	}
+
+	if (security_inode_alloc(inode))
+		goto out_free_inode;
+
+	/* allocate and initialize an i_integrity */
+	if (ima_inode_alloc(inode))
+		goto out_free_security;
 
 	spin_lock_init(&inode->i_lock);
 	lockdep_set_class(&inode->i_lock, &sb->s_type->i_lock_key);
@@ -186,6 +187,15 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode)
 	inode->i_mapping = mapping;
 
 	return inode;
+
+out_free_security:
+	security_inode_free(inode);
+out_free_inode:
+	if (inode->i_sb->s_op->destroy_inode)
+		inode->i_sb->s_op->destroy_inode(inode);
+	else
+		kmem_cache_free(inode_cachep, (inode));
+	return NULL;
 }
 EXPORT_SYMBOL(inode_init_always);
 
diff --git a/fs/namei.c b/fs/namei.c
index af3783fff1de..734f2b5591bf 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -24,6 +24,7 @@
 #include <linux/fsnotify.h>
 #include <linux/personality.h>
 #include <linux/security.h>
+#include <linux/ima.h>
 #include <linux/syscalls.h>
 #include <linux/mount.h>
 #include <linux/audit.h>
@@ -860,6 +861,8 @@ static int __link_path_walk(const char *name, struct nameidata *nd)
 		err = exec_permission_lite(inode);
 		if (err == -EAGAIN)
 			err = vfs_permission(nd, MAY_EXEC);
+		if (!err)
+			err = ima_path_check(&nd->path, MAY_EXEC);
  		if (err)
 			break;
 
@@ -1525,6 +1528,11 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
 	error = vfs_permission(nd, acc_mode);
 	if (error)
 		return error;
+
+	error = ima_path_check(&nd->path,
+			       acc_mode & (MAY_READ | MAY_WRITE | MAY_EXEC));
+	if (error)
+		return error;
 	/*
 	 * An append-only file must be opened in append mode for writing.
 	 */
diff --git a/include/linux/ima.h b/include/linux/ima.h
new file mode 100644
index 000000000000..4ed1e4d962e2
--- /dev/null
+++ b/include/linux/ima.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2008 IBM Corporation
+ * Author: Mimi Zohar <zohar@us.ibm.com>
+ *
+ * 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.
+ */
+
+#include <linux/fs.h>
+
+#ifndef _LINUX_IMA_H
+#define _LINUX_IMA_H
+
+static inline int ima_bprm_check(struct linux_binprm *bprm)
+{
+	return 0;
+}
+
+static inline int ima_inode_alloc(struct inode *inode)
+{
+	return 0;
+}
+
+static inline void ima_inode_free(struct inode *inode)
+{
+	return;
+}
+
+static inline int ima_path_check(struct path *path, int mask)
+{
+	return 0;
+}
+
+static inline void ima_file_free(struct file *file)
+{
+	return;
+}
+
+static inline int ima_file_mmap(struct file *file, unsigned long prot)
+{
+	return 0;
+}
+#endif /* _LINUX_IMA_H */
diff --git a/mm/mmap.c b/mm/mmap.c
index d4855a682ab6..c3647f3b0621 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -20,6 +20,7 @@
 #include <linux/fs.h>
 #include <linux/personality.h>
 #include <linux/security.h>
+#include <linux/ima.h>
 #include <linux/hugetlb.h>
 #include <linux/profile.h>
 #include <linux/module.h>
@@ -1048,6 +1049,9 @@ unsigned long do_mmap_pgoff(struct file * file, unsigned long addr,
 	}
 
 	error = security_file_mmap(file, reqprot, prot, flags, addr, 0);
+	if (error)
+		return error;
+	error = ima_file_mmap(file, prot);
 	if (error)
 		return error;
 
-- 
cgit v1.2.3


From 3323eec921efd815178a23107ab63588c605c0b2 Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Wed, 4 Feb 2009 09:06:58 -0500
Subject: integrity: IMA as an integrity service provider

IMA provides hardware (TPM) based measurement and attestation for
file measurements. As the Trusted Computing (TPM) model requires,
IMA measures all files before they are accessed in any way (on the
integrity_bprm_check, integrity_path_check and integrity_file_mmap
hooks), and commits the measurements to the TPM. Once added to the
TPM, measurements can not be removed.

In addition, IMA maintains a list of these file measurements, which
can be used to validate the aggregate value stored in the TPM.  The
TPM can sign these measurements, and thus the system can prove, to
itself and to a third party, the system's integrity in a way that
cannot be circumvented by malicious or compromised software.

- alloc ima_template_entry before calling ima_store_template()
- log ima_add_boot_aggregate() failure
- removed unused IMA_TEMPLATE_NAME_LEN
- replaced hard coded string length with #define name

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 Documentation/kernel-parameters.txt |   9 ++
 include/linux/audit.h               |   5 +
 include/linux/ima.h                 |  10 ++
 security/Kconfig                    |   5 +-
 security/Makefile                   |   4 +
 security/integrity/ima/Kconfig      |  49 +++++++
 security/integrity/ima/Makefile     |   9 ++
 security/integrity/ima/ima.h        | 135 +++++++++++++++++
 security/integrity/ima/ima_api.c    | 190 ++++++++++++++++++++++++
 security/integrity/ima/ima_audit.c  |  78 ++++++++++
 security/integrity/ima/ima_crypto.c | 140 ++++++++++++++++++
 security/integrity/ima/ima_iint.c   | 185 ++++++++++++++++++++++++
 security/integrity/ima/ima_init.c   |  90 ++++++++++++
 security/integrity/ima/ima_main.c   | 280 ++++++++++++++++++++++++++++++++++++
 security/integrity/ima/ima_policy.c | 126 ++++++++++++++++
 security/integrity/ima/ima_queue.c  | 140 ++++++++++++++++++
 16 files changed, 1454 insertions(+), 1 deletion(-)
 create mode 100644 security/integrity/ima/Kconfig
 create mode 100644 security/integrity/ima/Makefile
 create mode 100644 security/integrity/ima/ima.h
 create mode 100644 security/integrity/ima/ima_api.c
 create mode 100644 security/integrity/ima/ima_audit.c
 create mode 100644 security/integrity/ima/ima_crypto.c
 create mode 100644 security/integrity/ima/ima_iint.c
 create mode 100644 security/integrity/ima/ima_init.c
 create mode 100644 security/integrity/ima/ima_main.c
 create mode 100644 security/integrity/ima/ima_policy.c
 create mode 100644 security/integrity/ima/ima_queue.c

(limited to 'include')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7c67b94d1823..31e0c2c3c6e3 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -895,6 +895,15 @@ and is between 256 and 4096 characters. It is defined in the file
 	ihash_entries=	[KNL]
 			Set number of hash buckets for inode cache.
 
+	ima_audit=	[IMA]
+			Format: { "0" | "1" }
+			0 -- integrity auditing messages. (Default)
+			1 -- enable informational integrity auditing messages.
+
+	ima_hash=	[IMA]
+			Formt: { "sha1" | "md5" }
+			default: "sha1"
+
 	in2000=		[HW,SCSI]
 			See header of drivers/scsi/in2000.c.
 
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 26c4f6f65a46..8d1f67789b53 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -125,6 +125,11 @@
 #define AUDIT_LAST_KERN_ANOM_MSG    1799
 #define AUDIT_ANOM_PROMISCUOUS      1700 /* Device changed promiscuous mode */
 #define AUDIT_ANOM_ABEND            1701 /* Process ended abnormally */
+#define AUDIT_INTEGRITY_DATA	    1800 /* Data integrity verification */
+#define AUDIT_INTEGRITY_METADATA    1801 /* Metadata integrity verification */
+#define AUDIT_INTEGRITY_STATUS	    1802 /* Integrity enable status */
+#define AUDIT_INTEGRITY_HASH	    1803 /* Integrity HASH type */
+#define AUDIT_INTEGRITY_PCR	    1804 /* PCR invalidation msgs */
 
 #define AUDIT_KERNEL		2000	/* Asynchronous audit record. NOT A REQUEST. */
 
diff --git a/include/linux/ima.h b/include/linux/ima.h
index 4ed1e4d962e2..dcc3664feee8 100644
--- a/include/linux/ima.h
+++ b/include/linux/ima.h
@@ -12,6 +12,15 @@
 #ifndef _LINUX_IMA_H
 #define _LINUX_IMA_H
 
+#ifdef CONFIG_IMA
+extern int ima_bprm_check(struct linux_binprm *bprm);
+extern int ima_inode_alloc(struct inode *inode);
+extern void ima_inode_free(struct inode *inode);
+extern int ima_path_check(struct path *path, int mask);
+extern void ima_file_free(struct file *file);
+extern int ima_file_mmap(struct file *file, unsigned long prot);
+
+#else
 static inline int ima_bprm_check(struct linux_binprm *bprm)
 {
 	return 0;
@@ -41,4 +50,5 @@ static inline int ima_file_mmap(struct file *file, unsigned long prot)
 {
 	return 0;
 }
+#endif /* CONFIG_IMA_H */
 #endif /* _LINUX_IMA_H */
diff --git a/security/Kconfig b/security/Kconfig
index d9f47ce7e207..a79b23f73d03 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -55,7 +55,8 @@ config SECURITYFS
 	bool "Enable the securityfs filesystem"
 	help
 	  This will build the securityfs filesystem.  It is currently used by
-	  the TPM bios character driver.  It is not used by SELinux or SMACK.
+	  the TPM bios character driver and IMA, an integrity provider.  It is
+	  not used by SELinux or SMACK.
 
 	  If you are unsure how to answer this question, answer N.
 
@@ -126,5 +127,7 @@ config SECURITY_DEFAULT_MMAP_MIN_ADDR
 source security/selinux/Kconfig
 source security/smack/Kconfig
 
+source security/integrity/ima/Kconfig
+
 endmenu
 
diff --git a/security/Makefile b/security/Makefile
index c05c127fff9a..595536cbffb2 100644
--- a/security/Makefile
+++ b/security/Makefile
@@ -17,3 +17,7 @@ obj-$(CONFIG_SECURITY_SELINUX)		+= selinux/built-in.o
 obj-$(CONFIG_SECURITY_SMACK)		+= smack/built-in.o
 obj-$(CONFIG_SECURITY_ROOTPLUG)		+= root_plug.o
 obj-$(CONFIG_CGROUP_DEVICE)		+= device_cgroup.o
+
+# Object integrity file lists
+subdir-$(CONFIG_IMA)			+= integrity/ima
+obj-$(CONFIG_IMA)			+= integrity/ima/built-in.o
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
new file mode 100644
index 000000000000..2a761c8ac996
--- /dev/null
+++ b/security/integrity/ima/Kconfig
@@ -0,0 +1,49 @@
+# IBM Integrity Measurement Architecture
+#
+config IMA
+	bool "Integrity Measurement Architecture(IMA)"
+	depends on ACPI
+	select SECURITYFS
+	select CRYPTO
+	select CRYPTO_HMAC
+	select CRYPTO_MD5
+	select CRYPTO_SHA1
+	select TCG_TPM
+	select TCG_TIS
+	help
+	  The Trusted Computing Group(TCG) runtime Integrity
+	  Measurement Architecture(IMA) maintains a list of hash
+	  values of executables and other sensitive system files,
+	  as they are read or executed. If an attacker manages
+	  to change the contents of an important system file
+	  being measured, we can tell.
+
+	  If your system has a TPM chip, then IMA also maintains
+	  an aggregate integrity value over this list inside the
+	  TPM hardware, so that the TPM can prove to a third party
+	  whether or not critical system files have been modified.
+	  Read <http://www.usenix.org/events/sec04/tech/sailer.html>
+	  to learn more about IMA.
+	  If unsure, say N.
+
+config IMA_MEASURE_PCR_IDX
+	int
+	depends on IMA
+	range 8 14
+	default 10
+	help
+	  IMA_MEASURE_PCR_IDX determines the TPM PCR register index
+	  that IMA uses to maintain the integrity aggregate of the
+	  measurement list.  If unsure, use the default 10.
+
+config IMA_AUDIT
+	bool
+	depends on IMA
+	default y
+	help
+	  This option adds a kernel parameter 'ima_audit', which
+	  allows informational auditing messages to be enabled
+	  at boot.  If this option is selected, informational integrity
+	  auditing messages can be enabled with 'ima_audit=1' on
+	  the kernel command line.
+
diff --git a/security/integrity/ima/Makefile b/security/integrity/ima/Makefile
new file mode 100644
index 000000000000..9d6bf973b9be
--- /dev/null
+++ b/security/integrity/ima/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile for building Trusted Computing Group's(TCG) runtime Integrity
+# Measurement Architecture(IMA).
+#
+
+obj-$(CONFIG_IMA) += ima.o
+
+ima-y := ima_queue.o ima_init.o ima_main.o ima_crypto.o ima_api.o \
+	 ima_policy.o ima_iint.o ima_audit.o
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
new file mode 100644
index 000000000000..bfa72ed41b9b
--- /dev/null
+++ b/security/integrity/ima/ima.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2005,2006,2007,2008 IBM Corporation
+ *
+ * Authors:
+ * Reiner Sailer <sailer@watson.ibm.com>
+ * Mimi Zohar <zohar@us.ibm.com>
+ *
+ * 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.
+ *
+ * File: ima.h
+ *	internal Integrity Measurement Architecture (IMA) definitions
+ */
+
+#ifndef __LINUX_IMA_H
+#define __LINUX_IMA_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/security.h>
+#include <linux/hash.h>
+#include <linux/tpm.h>
+#include <linux/audit.h>
+
+enum ima_show_type { IMA_SHOW_BINARY, IMA_SHOW_ASCII };
+enum tpm_pcrs { TPM_PCR0 = 0, TPM_PCR8 = 8 };
+
+/* digest size for IMA, fits SHA1 or MD5 */
+#define IMA_DIGEST_SIZE		20
+#define IMA_EVENT_NAME_LEN_MAX	255
+
+#define IMA_HASH_BITS 9
+#define IMA_MEASURE_HTABLE_SIZE (1 << IMA_HASH_BITS)
+
+/* set during initialization */
+extern int ima_initialized;
+extern int ima_used_chip;
+extern char *ima_hash;
+
+/* IMA inode template definition */
+struct ima_template_data {
+	u8 digest[IMA_DIGEST_SIZE];	/* sha1/md5 measurement hash */
+	char file_name[IMA_EVENT_NAME_LEN_MAX + 1];	/* name + \0 */
+};
+
+struct ima_template_entry {
+	u8 digest[IMA_DIGEST_SIZE];	/* sha1 or md5 measurement hash */
+	char *template_name;
+	int template_len;
+	struct ima_template_data template;
+};
+
+struct ima_queue_entry {
+	struct hlist_node hnext;	/* place in hash collision list */
+	struct list_head later;		/* place in ima_measurements list */
+	struct ima_template_entry *entry;
+};
+extern struct list_head ima_measurements;	/* list of all measurements */
+
+/* declarations */
+void integrity_audit_msg(int audit_msgno, struct inode *inode,
+			 const unsigned char *fname, const char *op,
+			 const char *cause, int result, int info);
+
+/* Internal IMA function definitions */
+void ima_iintcache_init(void);
+int ima_init(void);
+int ima_add_template_entry(struct ima_template_entry *entry, int violation,
+			   const char *op, struct inode *inode);
+int ima_calc_hash(struct file *file, char *digest);
+int ima_calc_template_hash(int template_len, void *template, char *digest);
+int ima_calc_boot_aggregate(char *digest);
+void ima_add_violation(struct inode *inode, const unsigned char *filename,
+		       const char *op, const char *cause);
+
+/*
+ * used to protect h_table and sha_table
+ */
+extern spinlock_t ima_queue_lock;
+
+struct ima_h_table {
+	atomic_long_t len;	/* number of stored measurements in the list */
+	atomic_long_t violations;
+	struct hlist_head queue[IMA_MEASURE_HTABLE_SIZE];
+};
+extern struct ima_h_table ima_htable;
+
+static inline unsigned long ima_hash_key(u8 *digest)
+{
+	return hash_long(*digest, IMA_HASH_BITS);
+}
+
+/* iint cache flags */
+#define IMA_MEASURED		1
+
+/* integrity data associated with an inode */
+struct ima_iint_cache {
+	u64 version;		/* track inode changes */
+	unsigned long flags;
+	u8 digest[IMA_DIGEST_SIZE];
+	struct mutex mutex;	/* protects: version, flags, digest */
+	long readcount;		/* measured files readcount */
+	long writecount;	/* measured files writecount */
+	struct kref refcount;	/* ima_iint_cache reference count */
+	struct rcu_head rcu;
+};
+
+/* LIM API function definitions */
+int ima_must_measure(struct ima_iint_cache *iint, struct inode *inode,
+		     int mask, int function);
+int ima_collect_measurement(struct ima_iint_cache *iint, struct file *file);
+void ima_store_measurement(struct ima_iint_cache *iint, struct file *file,
+			   const unsigned char *filename);
+int ima_store_template(struct ima_template_entry *entry, int violation,
+		       struct inode *inode);
+
+/* radix tree calls to lookup, insert, delete
+ * integrity data associated with an inode.
+ */
+struct ima_iint_cache *ima_iint_insert(struct inode *inode);
+struct ima_iint_cache *ima_iint_find_get(struct inode *inode);
+struct ima_iint_cache *ima_iint_find_insert_get(struct inode *inode);
+void ima_iint_delete(struct inode *inode);
+void iint_free(struct kref *kref);
+void iint_rcu_free(struct rcu_head *rcu);
+
+/* IMA policy related functions */
+enum ima_hooks { PATH_CHECK = 1, FILE_MMAP, BPRM_CHECK };
+
+int ima_match_policy(struct inode *inode, enum ima_hooks func, int mask);
+void ima_init_policy(void);
+void ima_update_policy(void);
+#endif
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
new file mode 100644
index 000000000000..a148a25804f6
--- /dev/null
+++ b/security/integrity/ima/ima_api.c
@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2008 IBM Corporation
+ *
+ * Author: Mimi Zohar <zohar@us.ibm.com>
+ *
+ * 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.
+ *
+ * File: ima_api.c
+ *	Implements must_measure, collect_measurement, store_measurement,
+ *	and store_template.
+ */
+#include <linux/module.h>
+
+#include "ima.h"
+static char *IMA_TEMPLATE_NAME = "ima";
+
+/*
+ * ima_store_template - store ima template measurements
+ *
+ * Calculate the hash of a template entry, add the template entry
+ * to an ordered list of measurement entries maintained inside the kernel,
+ * and also update the aggregate integrity value (maintained inside the
+ * configured TPM PCR) over the hashes of the current list of measurement
+ * entries.
+ *
+ * Applications retrieve the current kernel-held measurement list through
+ * the securityfs entries in /sys/kernel/security/ima. The signed aggregate
+ * TPM PCR (called quote) can be retrieved using a TPM user space library
+ * and is used to validate the measurement list.
+ *
+ * Returns 0 on success, error code otherwise
+ */
+int ima_store_template(struct ima_template_entry *entry,
+		       int violation, struct inode *inode)
+{
+	const char *op = "add_template_measure";
+	const char *audit_cause = "hashing_error";
+	int result;
+
+	memset(entry->digest, 0, sizeof(entry->digest));
+	entry->template_name = IMA_TEMPLATE_NAME;
+	entry->template_len = sizeof(entry->template);
+
+	if (!violation) {
+		result = ima_calc_template_hash(entry->template_len,
+						&entry->template,
+						entry->digest);
+		if (result < 0) {
+			integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode,
+					    entry->template_name, op,
+					    audit_cause, result, 0);
+			return result;
+		}
+	}
+	result = ima_add_template_entry(entry, violation, op, inode);
+	return result;
+}
+
+/*
+ * ima_add_violation - add violation to measurement list.
+ *
+ * Violations are flagged in the measurement list with zero hash values.
+ * By extending the PCR with 0xFF's instead of with zeroes, the PCR
+ * value is invalidated.
+ */
+void ima_add_violation(struct inode *inode, const unsigned char *filename,
+		       const char *op, const char *cause)
+{
+	struct ima_template_entry *entry;
+	int violation = 1;
+	int result;
+
+	/* can overflow, only indicator */
+	atomic_long_inc(&ima_htable.violations);
+
+	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+	if (!entry) {
+		result = -ENOMEM;
+		goto err_out;
+	}
+	memset(&entry->template, 0, sizeof(entry->template));
+	strncpy(entry->template.file_name, filename, IMA_EVENT_NAME_LEN_MAX);
+	result = ima_store_template(entry, violation, inode);
+	if (result < 0)
+		kfree(entry);
+err_out:
+	integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, filename,
+			    op, cause, result, 0);
+}
+
+/**
+ * ima_must_measure - measure decision based on policy.
+ * @inode: pointer to inode to measure
+ * @mask: contains the permission mask (MAY_READ, MAY_WRITE, MAY_EXECUTE)
+ * @function: calling function (PATH_CHECK, BPRM_CHECK, FILE_MMAP)
+ *
+ * The policy is defined in terms of keypairs:
+ * 		subj=, obj=, type=, func=, mask=, fsmagic=
+ *	subj,obj, and type: are LSM specific.
+ * 	func: PATH_CHECK | BPRM_CHECK | FILE_MMAP
+ * 	mask: contains the permission mask
+ *	fsmagic: hex value
+ *
+ * Must be called with iint->mutex held.
+ *
+ * Return 0 to measure. Return 1 if already measured.
+ * For matching a DONT_MEASURE policy, no policy, or other
+ * error, return an error code.
+*/
+int ima_must_measure(struct ima_iint_cache *iint, struct inode *inode,
+		     int mask, int function)
+{
+	int must_measure;
+
+	if (iint->flags & IMA_MEASURED)
+		return 1;
+
+	must_measure = ima_match_policy(inode, function, mask);
+	return must_measure ? 0 : -EACCES;
+}
+
+/*
+ * ima_collect_measurement - collect file measurement
+ *
+ * Calculate the file hash, if it doesn't already exist,
+ * storing the measurement and i_version in the iint.
+ *
+ * Must be called with iint->mutex held.
+ *
+ * Return 0 on success, error code otherwise
+ */
+int ima_collect_measurement(struct ima_iint_cache *iint, struct file *file)
+{
+	int result = -EEXIST;
+
+	if (!(iint->flags & IMA_MEASURED)) {
+		u64 i_version = file->f_dentry->d_inode->i_version;
+
+		memset(iint->digest, 0, IMA_DIGEST_SIZE);
+		result = ima_calc_hash(file, iint->digest);
+		if (!result)
+			iint->version = i_version;
+	}
+	return result;
+}
+
+/*
+ * ima_store_measurement - store file measurement
+ *
+ * Create an "ima" template and then store the template by calling
+ * ima_store_template.
+ *
+ * We only get here if the inode has not already been measured,
+ * but the measurement could already exist:
+ * 	- multiple copies of the same file on either the same or
+ *	  different filesystems.
+ *	- the inode was previously flushed as well as the iint info,
+ *	  containing the hashing info.
+ *
+ * Must be called with iint->mutex held.
+ */
+void ima_store_measurement(struct ima_iint_cache *iint, struct file *file,
+			   const unsigned char *filename)
+{
+	const char *op = "add_template_measure";
+	const char *audit_cause = "ENOMEM";
+	int result = -ENOMEM;
+	struct inode *inode = file->f_dentry->d_inode;
+	struct ima_template_entry *entry;
+	int violation = 0;
+
+	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+	if (!entry) {
+		integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, filename,
+				    op, audit_cause, result, 0);
+		return;
+	}
+	memset(&entry->template, 0, sizeof(entry->template));
+	memcpy(entry->template.digest, iint->digest, IMA_DIGEST_SIZE);
+	strncpy(entry->template.file_name, filename, IMA_EVENT_NAME_LEN_MAX);
+
+	result = ima_store_template(entry, violation, inode);
+	if (!result)
+		iint->flags |= IMA_MEASURED;
+	else
+		kfree(entry);
+}
diff --git a/security/integrity/ima/ima_audit.c b/security/integrity/ima/ima_audit.c
new file mode 100644
index 000000000000..8a0f1e23ccf1
--- /dev/null
+++ b/security/integrity/ima/ima_audit.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2008 IBM Corporation
+ * Author: Mimi Zohar <zohar@us.ibm.com>
+ *
+ * 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.
+ *
+ * File: integrity_audit.c
+ * 	Audit calls for the integrity subsystem
+ */
+
+#include <linux/fs.h>
+#include <linux/audit.h>
+#include "ima.h"
+
+static int ima_audit;
+
+#ifdef CONFIG_IMA_AUDIT
+
+/* ima_audit_setup - enable informational auditing messages */
+static int __init ima_audit_setup(char *str)
+{
+	unsigned long audit;
+	int rc;
+	char *op;
+
+	rc = strict_strtoul(str, 0, &audit);
+	if (rc || audit > 1)
+		printk(KERN_INFO "ima: invalid ima_audit value\n");
+	else
+		ima_audit = audit;
+	op = ima_audit ? "ima_audit_enabled" : "ima_audit_not_enabled";
+	integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL, NULL, NULL, op, 0, 0);
+	return 1;
+}
+__setup("ima_audit=", ima_audit_setup);
+#endif
+
+void integrity_audit_msg(int audit_msgno, struct inode *inode,
+			 const unsigned char *fname, const char *op,
+			 const char *cause, int result, int audit_info)
+{
+	struct audit_buffer *ab;
+
+	if (!ima_audit && audit_info == 1) /* Skip informational messages */
+		return;
+
+	ab = audit_log_start(current->audit_context, GFP_KERNEL, audit_msgno);
+	audit_log_format(ab, "integrity: pid=%d uid=%u auid=%u",
+			 current->pid, current->cred->uid,
+			 audit_get_loginuid(current));
+	audit_log_task_context(ab);
+	switch (audit_msgno) {
+	case AUDIT_INTEGRITY_DATA:
+	case AUDIT_INTEGRITY_METADATA:
+	case AUDIT_INTEGRITY_PCR:
+		audit_log_format(ab, " op=%s cause=%s", op, cause);
+		break;
+	case AUDIT_INTEGRITY_HASH:
+		audit_log_format(ab, " op=%s hash=%s", op, cause);
+		break;
+	case AUDIT_INTEGRITY_STATUS:
+	default:
+		audit_log_format(ab, " op=%s", op);
+	}
+	audit_log_format(ab, " comm=");
+	audit_log_untrustedstring(ab, current->comm);
+	if (fname) {
+		audit_log_format(ab, " name=");
+		audit_log_untrustedstring(ab, fname);
+	}
+	if (inode)
+		audit_log_format(ab, " dev=%s ino=%lu",
+				 inode->i_sb->s_id, inode->i_ino);
+	audit_log_format(ab, " res=%d", result);
+	audit_log_end(ab);
+}
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
new file mode 100644
index 000000000000..c2a46e40999d
--- /dev/null
+++ b/security/integrity/ima/ima_crypto.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2005,2006,2007,2008 IBM Corporation
+ *
+ * Authors:
+ * Mimi Zohar <zohar@us.ibm.com>
+ * Kylene Hall <kjhall@us.ibm.com>
+ *
+ * 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.
+ *
+ * File: ima_crypto.c
+ * 	Calculates md5/sha1 file hash, template hash, boot-aggreate hash
+ */
+
+#include <linux/kernel.h>
+#include <linux/file.h>
+#include <linux/crypto.h>
+#include <linux/scatterlist.h>
+#include <linux/err.h>
+#include "ima.h"
+
+static int init_desc(struct hash_desc *desc)
+{
+	int rc;
+
+	desc->tfm = crypto_alloc_hash(ima_hash, 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(desc->tfm)) {
+		pr_info("failed to load %s transform: %ld\n",
+			ima_hash, PTR_ERR(desc->tfm));
+		rc = PTR_ERR(desc->tfm);
+		return rc;
+	}
+	desc->flags = 0;
+	rc = crypto_hash_init(desc);
+	if (rc)
+		crypto_free_hash(desc->tfm);
+	return rc;
+}
+
+/*
+ * Calculate the MD5/SHA1 file digest
+ */
+int ima_calc_hash(struct file *file, char *digest)
+{
+	struct hash_desc desc;
+	struct scatterlist sg[1];
+	loff_t i_size;
+	char *rbuf;
+	int rc, offset = 0;
+
+	rc = init_desc(&desc);
+	if (rc != 0)
+		return rc;
+
+	rbuf = kzalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!rbuf) {
+		rc = -ENOMEM;
+		goto out;
+	}
+	i_size = i_size_read(file->f_dentry->d_inode);
+	while (offset < i_size) {
+		int rbuf_len;
+
+		rbuf_len = kernel_read(file, offset, rbuf, PAGE_SIZE);
+		if (rbuf_len < 0) {
+			rc = rbuf_len;
+			break;
+		}
+		offset += rbuf_len;
+		sg_set_buf(sg, rbuf, rbuf_len);
+
+		rc = crypto_hash_update(&desc, sg, rbuf_len);
+		if (rc)
+			break;
+	}
+	kfree(rbuf);
+	if (!rc)
+		rc = crypto_hash_final(&desc, digest);
+out:
+	crypto_free_hash(desc.tfm);
+	return rc;
+}
+
+/*
+ * Calculate the hash of a given template
+ */
+int ima_calc_template_hash(int template_len, void *template, char *digest)
+{
+	struct hash_desc desc;
+	struct scatterlist sg[1];
+	int rc;
+
+	rc = init_desc(&desc);
+	if (rc != 0)
+		return rc;
+
+	sg_set_buf(sg, template, template_len);
+	rc = crypto_hash_update(&desc, sg, template_len);
+	if (!rc)
+		rc = crypto_hash_final(&desc, digest);
+	crypto_free_hash(desc.tfm);
+	return rc;
+}
+
+static void ima_pcrread(int idx, u8 *pcr)
+{
+	if (!ima_used_chip)
+		return;
+
+	if (tpm_pcr_read(TPM_ANY_NUM, idx, pcr) != 0)
+		pr_err("Error Communicating to TPM chip\n");
+}
+
+/*
+ * Calculate the boot aggregate hash
+ */
+int ima_calc_boot_aggregate(char *digest)
+{
+	struct hash_desc desc;
+	struct scatterlist sg;
+	u8 pcr_i[IMA_DIGEST_SIZE];
+	int rc, i;
+
+	rc = init_desc(&desc);
+	if (rc != 0)
+		return rc;
+
+	/* cumulative sha1 over tpm registers 0-7 */
+	for (i = TPM_PCR0; i < TPM_PCR8; i++) {
+		ima_pcrread(i, pcr_i);
+		/* now accumulate with current aggregate */
+		sg_init_one(&sg, pcr_i, IMA_DIGEST_SIZE);
+		rc = crypto_hash_update(&desc, &sg, IMA_DIGEST_SIZE);
+	}
+	if (!rc)
+		crypto_hash_final(&desc, digest);
+	crypto_free_hash(desc.tfm);
+	return rc;
+}
diff --git a/security/integrity/ima/ima_iint.c b/security/integrity/ima/ima_iint.c
new file mode 100644
index 000000000000..750db3c993a7
--- /dev/null
+++ b/security/integrity/ima/ima_iint.c
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2008 IBM Corporation
+ *
+ * Authors:
+ * Mimi Zohar <zohar@us.ibm.com>
+ *
+ * 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.
+ *
+ * File: ima_iint.c
+ * 	- implements the IMA hooks: ima_inode_alloc, ima_inode_free
+ *	- cache integrity information associated with an inode
+ *	  using a radix tree.
+ */
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/radix-tree.h>
+#include "ima.h"
+
+#define ima_iint_delete ima_inode_free
+
+RADIX_TREE(ima_iint_store, GFP_ATOMIC);
+DEFINE_SPINLOCK(ima_iint_lock);
+
+static struct kmem_cache *iint_cache __read_mostly;
+
+/* ima_iint_find_get - return the iint associated with an inode
+ *
+ * ima_iint_find_get gets a reference to the iint. Caller must
+ * remember to put the iint reference.
+ */
+struct ima_iint_cache *ima_iint_find_get(struct inode *inode)
+{
+	struct ima_iint_cache *iint;
+
+	rcu_read_lock();
+	iint = radix_tree_lookup(&ima_iint_store, (unsigned long)inode);
+	if (!iint)
+		goto out;
+	kref_get(&iint->refcount);
+out:
+	rcu_read_unlock();
+	return iint;
+}
+
+/* Allocate memory for the iint associated with the inode
+ * from the iint_cache slab, initialize the iint, and
+ * insert it into the radix tree.
+ *
+ * On success return a pointer to the iint; on failure return NULL.
+ */
+struct ima_iint_cache *ima_iint_insert(struct inode *inode)
+{
+	struct ima_iint_cache *iint = NULL;
+	int rc = 0;
+
+	if (!ima_initialized)
+		return iint;
+	iint = kmem_cache_alloc(iint_cache, GFP_KERNEL);
+	if (!iint)
+		return iint;
+
+	rc = radix_tree_preload(GFP_KERNEL);
+	if (rc < 0)
+		goto out;
+
+	spin_lock(&ima_iint_lock);
+	rc = radix_tree_insert(&ima_iint_store, (unsigned long)inode, iint);
+	spin_unlock(&ima_iint_lock);
+out:
+	if (rc < 0) {
+		kmem_cache_free(iint_cache, iint);
+		if (rc == -EEXIST) {
+			iint = radix_tree_lookup(&ima_iint_store,
+						 (unsigned long)inode);
+		} else
+			iint = NULL;
+	}
+	radix_tree_preload_end();
+	return iint;
+}
+
+/**
+ * ima_inode_alloc - allocate an iint associated with an inode
+ * @inode: pointer to the inode
+ *
+ * Return 0 on success, 1 on failure.
+ */
+int ima_inode_alloc(struct inode *inode)
+{
+	struct ima_iint_cache *iint;
+
+	if (!ima_initialized)
+		return 0;
+
+	iint = ima_iint_insert(inode);
+	if (!iint)
+		return 1;
+	return 0;
+}
+
+/* ima_iint_find_insert_get - get the iint associated with an inode
+ *
+ * Most insertions are done at inode_alloc, except those allocated
+ * before late_initcall. When the iint does not exist, allocate it,
+ * initialize and insert it, and increment the iint refcount.
+ *
+ * (Can't initialize at security_initcall before any inodes are
+ * allocated, got to wait at least until proc_init.)
+ *
+ *  Return the iint.
+ */
+struct ima_iint_cache *ima_iint_find_insert_get(struct inode *inode)
+{
+	struct ima_iint_cache *iint = NULL;
+
+	iint = ima_iint_find_get(inode);
+	if (iint)
+		return iint;
+
+	iint = ima_iint_insert(inode);
+	if (iint)
+		kref_get(&iint->refcount);
+
+	return iint;
+}
+
+/* iint_free - called when the iint refcount goes to zero */
+void iint_free(struct kref *kref)
+{
+	struct ima_iint_cache *iint = container_of(kref, struct ima_iint_cache,
+						   refcount);
+	iint->version = 0;
+	iint->flags = 0UL;
+	kref_set(&iint->refcount, 1);
+	kmem_cache_free(iint_cache, iint);
+}
+
+void iint_rcu_free(struct rcu_head *rcu_head)
+{
+	struct ima_iint_cache *iint = container_of(rcu_head,
+						   struct ima_iint_cache, rcu);
+	kref_put(&iint->refcount, iint_free);
+}
+
+/**
+ * ima_iint_delete - called on integrity_inode_free
+ * @inode: pointer to the inode
+ *
+ * Free the integrity information(iint) associated with an inode.
+ */
+void ima_iint_delete(struct inode *inode)
+{
+	struct ima_iint_cache *iint;
+
+	if (!ima_initialized)
+		return;
+	spin_lock(&ima_iint_lock);
+	iint = radix_tree_delete(&ima_iint_store, (unsigned long)inode);
+	spin_unlock(&ima_iint_lock);
+	if (iint)
+		call_rcu(&iint->rcu, iint_rcu_free);
+}
+
+static void init_once(void *foo)
+{
+	struct ima_iint_cache *iint = foo;
+
+	memset(iint, 0, sizeof *iint);
+	iint->version = 0;
+	iint->flags = 0UL;
+	mutex_init(&iint->mutex);
+	iint->readcount = 0;
+	iint->writecount = 0;
+	kref_set(&iint->refcount, 1);
+}
+
+void ima_iintcache_init(void)
+{
+	iint_cache =
+	    kmem_cache_create("iint_cache", sizeof(struct ima_iint_cache), 0,
+			      SLAB_PANIC, init_once);
+}
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
new file mode 100644
index 000000000000..e0f02e328d77
--- /dev/null
+++ b/security/integrity/ima/ima_init.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2005,2006,2007,2008 IBM Corporation
+ *
+ * Authors:
+ * Reiner Sailer      <sailer@watson.ibm.com>
+ * Leendert van Doorn <leendert@watson.ibm.com>
+ * Mimi Zohar         <zohar@us.ibm.com>
+ *
+ * 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.
+ *
+ * File: ima_init.c
+ *             initialization and cleanup functions
+ */
+#include <linux/module.h>
+#include <linux/scatterlist.h>
+#include <linux/err.h>
+#include "ima.h"
+
+/* name for boot aggregate entry */
+static char *boot_aggregate_name = "boot_aggregate";
+int ima_used_chip;
+
+/* Add the boot aggregate to the IMA measurement list and extend
+ * the PCR register.
+ *
+ * Calculate the boot aggregate, a SHA1 over tpm registers 0-7,
+ * assuming a TPM chip exists, and zeroes if the TPM chip does not
+ * exist.  Add the boot aggregate measurement to the measurement
+ * list and extend the PCR register.
+ *
+ * If a tpm chip does not exist, indicate the core root of trust is
+ * not hardware based by invalidating the aggregate PCR value.
+ * (The aggregate PCR value is invalidated by adding one value to
+ * the measurement list and extending the aggregate PCR value with
+ * a different value.) Violations add a zero entry to the measurement
+ * list and extend the aggregate PCR value with ff...ff's.
+ */
+static void ima_add_boot_aggregate(void)
+{
+	struct ima_template_entry *entry;
+	const char *op = "add_boot_aggregate";
+	const char *audit_cause = "ENOMEM";
+	int result = -ENOMEM;
+	int violation = 1;
+
+	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+	if (!entry)
+		goto err_out;
+
+	memset(&entry->template, 0, sizeof(entry->template));
+	strncpy(entry->template.file_name, boot_aggregate_name,
+		IMA_EVENT_NAME_LEN_MAX);
+	if (ima_used_chip) {
+		violation = 0;
+		result = ima_calc_boot_aggregate(entry->template.digest);
+		if (result < 0) {
+			audit_cause = "hashing_error";
+			kfree(entry);
+			goto err_out;
+		}
+	}
+	result = ima_store_template(entry, violation, NULL);
+	if (result < 0)
+		kfree(entry);
+	return;
+err_out:
+	integrity_audit_msg(AUDIT_INTEGRITY_PCR, NULL, boot_aggregate_name, op,
+			    audit_cause, result, 0);
+}
+
+int ima_init(void)
+{
+	u8 pcr_i[IMA_DIGEST_SIZE];
+	int rc;
+
+	ima_used_chip = 0;
+	rc = tpm_pcr_read(TPM_ANY_NUM, 0, pcr_i);
+	if (rc == 0)
+		ima_used_chip = 1;
+
+	if (!ima_used_chip)
+		pr_info("No TPM chip found, activating TPM-bypass!\n");
+
+	ima_add_boot_aggregate();	/* boot aggregate must be first entry */
+	ima_init_policy();
+	return 0;
+}
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
new file mode 100644
index 000000000000..53cee4c512ce
--- /dev/null
+++ b/security/integrity/ima/ima_main.c
@@ -0,0 +1,280 @@
+/*
+ * Copyright (C) 2005,2006,2007,2008 IBM Corporation
+ *
+ * Authors:
+ * Reiner Sailer <sailer@watson.ibm.com>
+ * Serge Hallyn <serue@us.ibm.com>
+ * Kylene Hall <kylene@us.ibm.com>
+ * Mimi Zohar <zohar@us.ibm.com>
+ *
+ * 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.
+ *
+ * File: ima_main.c
+ *             implements the IMA hooks: ima_bprm_check, ima_file_mmap,
+ *             and ima_path_check.
+ */
+#include <linux/module.h>
+#include <linux/file.h>
+#include <linux/binfmts.h>
+#include <linux/mount.h>
+#include <linux/mman.h>
+
+#include "ima.h"
+
+int ima_initialized;
+
+char *ima_hash = "sha1";
+static int __init hash_setup(char *str)
+{
+	const char *op = "hash_setup";
+	const char *hash = "sha1";
+	int result = 0;
+	int audit_info = 0;
+
+	if (strncmp(str, "md5", 3) == 0) {
+		hash = "md5";
+		ima_hash = str;
+	} else if (strncmp(str, "sha1", 4) != 0) {
+		hash = "invalid_hash_type";
+		result = 1;
+	}
+	integrity_audit_msg(AUDIT_INTEGRITY_HASH, NULL, NULL, op, hash,
+			    result, audit_info);
+	return 1;
+}
+__setup("ima_hash=", hash_setup);
+
+/**
+ * ima_file_free - called on __fput()
+ * @file: pointer to file structure being freed
+ *
+ * Flag files that changed, based on i_version;
+ * and decrement the iint readcount/writecount.
+ */
+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))
+		return;
+	iint = ima_iint_find_get(inode);
+	if (!iint)
+		return;
+
+	mutex_lock(&iint->mutex);
+	if ((file->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
+		iint->readcount--;
+
+	if (file->f_mode & FMODE_WRITE) {
+		iint->writecount--;
+		if (iint->writecount == 0) {
+			if (iint->version != inode->i_version)
+				iint->flags &= ~IMA_MEASURED;
+		}
+	}
+	mutex_unlock(&iint->mutex);
+	kref_put(&iint->refcount, iint_free);
+}
+
+/* ima_read_write_check - reflect possible reading/writing errors in the PCR.
+ *
+ * When opening a file for read, if the file is already open for write,
+ * the file could change, resulting in a file measurement error.
+ *
+ * Opening a file for write, if the file is already open for read, results
+ * in a time of measure, time of use (ToMToU) error.
+ *
+ * In either case invalidate the PCR.
+ */
+enum iint_pcr_error { TOMTOU, OPEN_WRITERS };
+static void ima_read_write_check(enum iint_pcr_error error,
+				 struct ima_iint_cache *iint,
+				 struct inode *inode,
+				 const unsigned char *filename)
+{
+	switch (error) {
+	case TOMTOU:
+		if (iint->readcount > 0)
+			ima_add_violation(inode, filename, "invalid_pcr",
+					  "ToMToU");
+		break;
+	case OPEN_WRITERS:
+		if (iint->writecount > 0)
+			ima_add_violation(inode, filename, "invalid_pcr",
+					  "open_writers");
+		break;
+	}
+}
+
+static int get_path_measurement(struct ima_iint_cache *iint, struct file *file,
+				const unsigned char *filename)
+{
+	int rc = 0;
+
+	if (IS_ERR(file)) {
+		pr_info("%s dentry_open failed\n", filename);
+		return rc;
+	}
+	iint->readcount++;
+
+	rc = ima_collect_measurement(iint, file);
+	if (!rc)
+		ima_store_measurement(iint, file, filename);
+	return rc;
+}
+
+/**
+ * ima_path_check - based on policy, collect/store measurement.
+ * @path: contains a pointer to the path to be measured
+ * @mask: contains MAY_READ, MAY_WRITE or MAY_EXECUTE
+ *
+ * Measure the file being open for readonly, based on the
+ * ima_must_measure() policy decision.
+ *
+ * Keep read/write counters for all files, but only
+ * invalidate the PCR for measured files:
+ * 	- Opening a file for write when already open for read,
+ *	  results in a time of measure, time of use (ToMToU) error.
+ *	- Opening a file for read when already open for write,
+ * 	  could result in a file measurement error.
+ *
+ * Return 0 on success, an error code on failure.
+ * (Based on the results of appraise_measurement().)
+ */
+int ima_path_check(struct path *path, int mask)
+{
+	struct inode *inode = path->dentry->d_inode;
+	struct ima_iint_cache *iint;
+	struct file *file = NULL;
+	int rc;
+
+	if (!ima_initialized || !S_ISREG(inode->i_mode))
+		return 0;
+	iint = ima_iint_find_insert_get(inode);
+	if (!iint)
+		return 0;
+
+	mutex_lock(&iint->mutex);
+	if ((mask & MAY_WRITE) || (mask == 0))
+		iint->writecount++;
+	else if (mask & (MAY_READ | MAY_EXEC))
+		iint->readcount++;
+
+	rc = ima_must_measure(iint, inode, MAY_READ, PATH_CHECK);
+	if (rc < 0)
+		goto out;
+
+	if ((mask & MAY_WRITE) || (mask == 0))
+		ima_read_write_check(TOMTOU, iint, inode,
+				     path->dentry->d_name.name);
+
+	if ((mask & (MAY_WRITE | MAY_READ | MAY_EXEC)) != MAY_READ)
+		goto out;
+
+	ima_read_write_check(OPEN_WRITERS, iint, inode,
+			     path->dentry->d_name.name);
+	if (!(iint->flags & IMA_MEASURED)) {
+		struct dentry *dentry = dget(path->dentry);
+		struct vfsmount *mnt = mntget(path->mnt);
+
+		file = dentry_open(dentry, mnt, O_RDONLY, current->cred);
+		rc = get_path_measurement(iint, file, dentry->d_name.name);
+	}
+out:
+	mutex_unlock(&iint->mutex);
+	if (file)
+		fput(file);
+	kref_put(&iint->refcount, iint_free);
+	return 0;
+}
+
+static int process_measurement(struct file *file, const unsigned char *filename,
+			       int mask, int function)
+{
+	struct inode *inode = file->f_dentry->d_inode;
+	struct ima_iint_cache *iint;
+	int rc;
+
+	if (!ima_initialized || !S_ISREG(inode->i_mode))
+		return 0;
+	iint = ima_iint_find_insert_get(inode);
+	if (!iint)
+		return -ENOMEM;
+
+	mutex_lock(&iint->mutex);
+	rc = ima_must_measure(iint, inode, mask, function);
+	if (rc != 0)
+		goto out;
+
+	rc = ima_collect_measurement(iint, file);
+	if (!rc)
+		ima_store_measurement(iint, file, filename);
+out:
+	mutex_unlock(&iint->mutex);
+	kref_put(&iint->refcount, iint_free);
+	return rc;
+}
+
+/**
+ * ima_file_mmap - based on policy, collect/store measurement.
+ * @file: pointer to the file to be measured (May be NULL)
+ * @prot: contains the protection that will be applied by the kernel.
+ *
+ * Measure files being mmapped executable based on the ima_must_measure()
+ * policy decision.
+ *
+ * Return 0 on success, an error code on failure.
+ * (Based on the results of appraise_measurement().)
+ */
+int ima_file_mmap(struct file *file, unsigned long prot)
+{
+	int rc;
+
+	if (!file)
+		return 0;
+	if (prot & PROT_EXEC)
+		rc = process_measurement(file, file->f_dentry->d_name.name,
+					 MAY_EXEC, FILE_MMAP);
+	return 0;
+}
+
+/**
+ * ima_bprm_check - based on policy, collect/store measurement.
+ * @bprm: contains the linux_binprm structure
+ *
+ * The OS protects against an executable file, already open for write,
+ * from being executed in deny_write_access() and an executable file,
+ * already open for execute, from being modified in get_write_access().
+ * So we can be certain that what we verify and measure here is actually
+ * what is being executed.
+ *
+ * Return 0 on success, an error code on failure.
+ * (Based on the results of appraise_measurement().)
+ */
+int ima_bprm_check(struct linux_binprm *bprm)
+{
+	int rc;
+
+	rc = process_measurement(bprm->file, bprm->filename,
+				 MAY_EXEC, BPRM_CHECK);
+	return 0;
+}
+
+static int __init init_ima(void)
+{
+	int error;
+
+	ima_iintcache_init();
+	error = ima_init();
+	ima_initialized = 1;
+	return error;
+}
+
+late_initcall(init_ima);	/* Start IMA after the TPM is available */
+
+MODULE_DESCRIPTION("Integrity Measurement Architecture");
+MODULE_LICENSE("GPL");
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
new file mode 100644
index 000000000000..7c3d1ffb1472
--- /dev/null
+++ b/security/integrity/ima/ima_policy.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2008 IBM Corporation
+ * Author: Mimi Zohar <zohar@us.ibm.com>
+ *
+ * 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.
+ *
+ * ima_policy.c
+ * 	- initialize default measure policy rules
+ *
+ */
+#include <linux/module.h>
+#include <linux/list.h>
+#include <linux/audit.h>
+#include <linux/security.h>
+#include <linux/magic.h>
+
+#include "ima.h"
+
+/* flags definitions */
+#define IMA_FUNC 	0x0001
+#define IMA_MASK 	0x0002
+#define IMA_FSMAGIC	0x0004
+#define IMA_UID		0x0008
+
+enum ima_action { DONT_MEASURE, MEASURE };
+
+struct ima_measure_rule_entry {
+	struct list_head list;
+	enum ima_action action;
+	unsigned int flags;
+	enum ima_hooks func;
+	int mask;
+	unsigned long fsmagic;
+	uid_t uid;
+};
+
+static struct ima_measure_rule_entry default_rules[] = {
+	{.action = DONT_MEASURE,.fsmagic = PROC_SUPER_MAGIC,
+	 .flags = IMA_FSMAGIC},
+	{.action = DONT_MEASURE,.fsmagic = SYSFS_MAGIC,.flags = IMA_FSMAGIC},
+	{.action = DONT_MEASURE,.fsmagic = DEBUGFS_MAGIC,.flags = IMA_FSMAGIC},
+	{.action = DONT_MEASURE,.fsmagic = TMPFS_MAGIC,.flags = IMA_FSMAGIC},
+	{.action = DONT_MEASURE,.fsmagic = SECURITYFS_MAGIC,
+	 .flags = IMA_FSMAGIC},
+	{.action = DONT_MEASURE,.fsmagic = 0xF97CFF8C,.flags = IMA_FSMAGIC},
+	{.action = MEASURE,.func = FILE_MMAP,.mask = MAY_EXEC,
+	 .flags = IMA_FUNC | IMA_MASK},
+	{.action = MEASURE,.func = BPRM_CHECK,.mask = MAY_EXEC,
+	 .flags = IMA_FUNC | IMA_MASK},
+	{.action = MEASURE,.func = PATH_CHECK,.mask = MAY_READ,.uid = 0,
+	 .flags = IMA_FUNC | IMA_MASK | IMA_UID}
+};
+
+static LIST_HEAD(measure_default_rules);
+static struct list_head *ima_measure;
+
+/**
+ * ima_match_rules - determine whether an inode matches the measure rule.
+ * @rule: a pointer to a rule
+ * @inode: a pointer to an inode
+ * @func: LIM hook identifier
+ * @mask: requested action (MAY_READ | MAY_WRITE | MAY_APPEND | MAY_EXEC)
+ *
+ * Returns true on rule match, false on failure.
+ */
+static bool ima_match_rules(struct ima_measure_rule_entry *rule,
+			    struct inode *inode, enum ima_hooks func, int mask)
+{
+	struct task_struct *tsk = current;
+
+	if ((rule->flags & IMA_FUNC) && rule->func != func)
+		return false;
+	if ((rule->flags & IMA_MASK) && rule->mask != mask)
+		return false;
+	if ((rule->flags & IMA_FSMAGIC)
+	    && rule->fsmagic != inode->i_sb->s_magic)
+		return false;
+	if ((rule->flags & IMA_UID) && rule->uid != tsk->cred->uid)
+		return false;
+	return true;
+}
+
+/**
+ * ima_match_policy - decision based on LSM and other conditions
+ * @inode: pointer to an inode for which the policy decision is being made
+ * @func: IMA hook identifier
+ * @mask: requested action (MAY_READ | MAY_WRITE | MAY_APPEND | MAY_EXEC)
+ *
+ * Measure decision based on func/mask/fsmagic and LSM(subj/obj/type)
+ * conditions.
+ *
+ * (There is no need for locking when walking the policy list,
+ * as elements in the list are never deleted, nor does the list
+ * change.)
+ */
+int ima_match_policy(struct inode *inode, enum ima_hooks func, int mask)
+{
+	struct ima_measure_rule_entry *entry;
+
+	list_for_each_entry(entry, ima_measure, list) {
+		bool rc;
+
+		rc = ima_match_rules(entry, inode, func, mask);
+		if (rc)
+			return entry->action;
+	}
+	return 0;
+}
+
+/**
+ * ima_init_policy - initialize the default measure rules.
+ *
+ * (Could use the default_rules directly, but in policy patch
+ * ima_measure points to either the measure_default_rules or the
+ * the new measure_policy_rules.)
+ */
+void ima_init_policy(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(default_rules); i++)
+		list_add_tail(&default_rules[i].list, &measure_default_rules);
+	ima_measure = &measure_default_rules;
+}
diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
new file mode 100644
index 000000000000..7ec94314ac0c
--- /dev/null
+++ b/security/integrity/ima/ima_queue.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2005,2006,2007,2008 IBM Corporation
+ *
+ * Authors:
+ * Serge Hallyn <serue@us.ibm.com>
+ * Reiner Sailer <sailer@watson.ibm.com>
+ * Mimi Zohar <zohar@us.ibm.com>
+ *
+ * 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.
+ *
+ * File: ima_queue.c
+ *       Implements queues that store template measurements and
+ *       maintains aggregate over the stored measurements
+ *       in the pre-configured TPM PCR (if available).
+ *       The measurement list is append-only. No entry is
+ *       ever removed or changed during the boot-cycle.
+ */
+#include <linux/module.h>
+#include <linux/rculist.h>
+#include "ima.h"
+
+LIST_HEAD(ima_measurements);	/* list of all measurements */
+
+/* key: inode (before secure-hashing a file) */
+struct ima_h_table ima_htable = {
+	.len = ATOMIC_LONG_INIT(0),
+	.violations = ATOMIC_LONG_INIT(0),
+	.queue[0 ... IMA_MEASURE_HTABLE_SIZE - 1] = HLIST_HEAD_INIT
+};
+
+/* mutex protects atomicity of extending measurement list
+ * and extending the TPM PCR aggregate. Since tpm_extend can take
+ * long (and the tpm driver uses a mutex), we can't use the spinlock.
+ */
+static DEFINE_MUTEX(ima_extend_list_mutex);
+
+/* lookup up the digest value in the hash table, and return the entry */
+static struct ima_queue_entry *ima_lookup_digest_entry(u8 *digest_value)
+{
+	struct ima_queue_entry *qe, *ret = NULL;
+	unsigned int key;
+	struct hlist_node *pos;
+	int rc;
+
+	key = ima_hash_key(digest_value);
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(qe, pos, &ima_htable.queue[key], hnext) {
+		rc = memcmp(qe->entry->digest, digest_value, IMA_DIGEST_SIZE);
+		if (rc == 0) {
+			ret = qe;
+			break;
+		}
+	}
+	rcu_read_unlock();
+	return ret;
+}
+
+/* ima_add_template_entry helper function:
+ * - Add template entry to measurement list and hash table.
+ *
+ * (Called with ima_extend_list_mutex held.)
+ */
+static int ima_add_digest_entry(struct ima_template_entry *entry)
+{
+	struct ima_queue_entry *qe;
+	unsigned int key;
+
+	qe = kmalloc(sizeof(*qe), GFP_KERNEL);
+	if (qe == NULL) {
+		pr_err("OUT OF MEMORY ERROR creating queue entry.\n");
+		return -ENOMEM;
+	}
+	qe->entry = entry;
+
+	INIT_LIST_HEAD(&qe->later);
+	list_add_tail_rcu(&qe->later, &ima_measurements);
+
+	atomic_long_inc(&ima_htable.len);
+	key = ima_hash_key(entry->digest);
+	hlist_add_head_rcu(&qe->hnext, &ima_htable.queue[key]);
+	return 0;
+}
+
+static int ima_pcr_extend(const u8 *hash)
+{
+	int result = 0;
+
+	if (!ima_used_chip)
+		return result;
+
+	result = tpm_pcr_extend(TPM_ANY_NUM, CONFIG_IMA_MEASURE_PCR_IDX, hash);
+	if (result != 0)
+		pr_err("Error Communicating to TPM chip\n");
+	return result;
+}
+
+/* Add template entry to the measurement list and hash table,
+ * and extend the pcr.
+ */
+int ima_add_template_entry(struct ima_template_entry *entry, int violation,
+			   const char *op, struct inode *inode)
+{
+	u8 digest[IMA_DIGEST_SIZE];
+	const char *audit_cause = "hash_added";
+	int audit_info = 1;
+	int result = 0;
+
+	mutex_lock(&ima_extend_list_mutex);
+	if (!violation) {
+		memcpy(digest, entry->digest, sizeof digest);
+		if (ima_lookup_digest_entry(digest)) {
+			audit_cause = "hash_exists";
+			goto out;
+		}
+	}
+
+	result = ima_add_digest_entry(entry);
+	if (result < 0) {
+		audit_cause = "ENOMEM";
+		audit_info = 0;
+		goto out;
+	}
+
+	if (violation)		/* invalidate pcr */
+		memset(digest, 0xff, sizeof digest);
+
+	result = ima_pcr_extend(digest);
+	if (result != 0) {
+		audit_cause = "TPM error";
+		audit_info = 0;
+	}
+out:
+	mutex_unlock(&ima_extend_list_mutex);
+	integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, entry->template_name,
+			    op, audit_cause, result, audit_info);
+	return result;
+}
-- 
cgit v1.2.3


From 1df9f0a73178718969ae47d813b8e7aab2cf073c Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Wed, 4 Feb 2009 09:07:02 -0500
Subject: Integrity: IMA file free imbalance

The number of calls to ima_path_check()/ima_file_free()
should be balanced.  An extra call to fput(), indicates
the file could have been accessed without first being
measured.

Although f_count is incremented/decremented in places other
than fget/fput, like fget_light/fput_light and get_file, the
current task must already hold a file refcnt.  The call to
__fput() is delayed until the refcnt becomes 0, resulting
in ima_file_free() flagging any changes.

- add hook to increment opencount for IPC shared memory(SYSV),
  shmat files, and /dev/zero
- moved NULL iint test in opencount_get()

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 include/linux/ima.h               |  6 ++++++
 ipc/shm.c                         |  3 +++
 mm/shmem.c                        |  2 ++
 security/integrity/ima/ima.h      |  2 ++
 security/integrity/ima/ima_iint.c | 17 ++++++++++++++++
 security/integrity/ima/ima_main.c | 42 +++++++++++++++++++++++++++++++++++++++
 6 files changed, 72 insertions(+)

(limited to 'include')

diff --git a/include/linux/ima.h b/include/linux/ima.h
index dcc3664feee8..6db30a328d98 100644
--- a/include/linux/ima.h
+++ b/include/linux/ima.h
@@ -19,6 +19,7 @@ extern void ima_inode_free(struct inode *inode);
 extern int ima_path_check(struct path *path, int mask);
 extern void ima_file_free(struct file *file);
 extern int ima_file_mmap(struct file *file, unsigned long prot);
+extern void ima_shm_check(struct file *file);
 
 #else
 static inline int ima_bprm_check(struct linux_binprm *bprm)
@@ -50,5 +51,10 @@ static inline int ima_file_mmap(struct file *file, unsigned long prot)
 {
 	return 0;
 }
+
+static inline void ima_shm_check(struct file *file)
+{
+	return;
+}
 #endif /* CONFIG_IMA_H */
 #endif /* _LINUX_IMA_H */
diff --git a/ipc/shm.c b/ipc/shm.c
index 38a055758a9b..d39bd7637b1c 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -39,6 +39,7 @@
 #include <linux/nsproxy.h>
 #include <linux/mount.h>
 #include <linux/ipc_namespace.h>
+#include <linux/ima.h>
 
 #include <asm/uaccess.h>
 
@@ -381,6 +382,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	error = PTR_ERR(file);
 	if (IS_ERR(file))
 		goto no_file;
+	ima_shm_check(file);
 
 	id = ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni);
 	if (id < 0) {
@@ -888,6 +890,7 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)
 	file = alloc_file(path.mnt, path.dentry, f_mode, &shm_file_operations);
 	if (!file)
 		goto out_free;
+	ima_shm_check(file);
 
 	file->private_data = sfd;
 	file->f_mapping = shp->shm_file->f_mapping;
diff --git a/mm/shmem.c b/mm/shmem.c
index f1b0d4871f3a..dd5588f5d939 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -51,6 +51,7 @@
 #include <linux/highmem.h>
 #include <linux/seq_file.h>
 #include <linux/magic.h>
+#include <linux/ima.h>
 
 #include <asm/uaccess.h>
 #include <asm/div64.h>
@@ -2600,6 +2601,7 @@ int shmem_zero_setup(struct vm_area_struct *vma)
 	if (IS_ERR(file))
 		return PTR_ERR(file);
 
+	ima_shm_check(file);
 	if (vma->vm_file)
 		fput(vma->vm_file);
 	vma->vm_file = file;
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 42706b554921..e3c16a21a38e 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -97,6 +97,7 @@ static inline unsigned long ima_hash_key(u8 *digest)
 
 /* iint cache flags */
 #define IMA_MEASURED		1
+#define IMA_IINT_DUMP_STACK	512
 
 /* integrity data associated with an inode */
 struct ima_iint_cache {
@@ -106,6 +107,7 @@ struct ima_iint_cache {
 	struct mutex mutex;	/* protects: version, flags, digest */
 	long readcount;		/* measured files readcount */
 	long writecount;	/* measured files writecount */
+	long opencount;		/* opens reference count */
 	struct kref refcount;	/* ima_iint_cache reference count */
 	struct rcu_head rcu;
 };
diff --git a/security/integrity/ima/ima_iint.c b/security/integrity/ima/ima_iint.c
index 750db3c993a7..1f035e8d29c7 100644
--- a/security/integrity/ima/ima_iint.c
+++ b/security/integrity/ima/ima_iint.c
@@ -126,6 +126,7 @@ struct ima_iint_cache *ima_iint_find_insert_get(struct inode *inode)
 
 	return iint;
 }
+EXPORT_SYMBOL_GPL(ima_iint_find_insert_get);
 
 /* iint_free - called when the iint refcount goes to zero */
 void iint_free(struct kref *kref)
@@ -134,6 +135,21 @@ void iint_free(struct kref *kref)
 						   refcount);
 	iint->version = 0;
 	iint->flags = 0UL;
+	if (iint->readcount != 0) {
+		printk(KERN_INFO "%s: readcount: %ld\n", __FUNCTION__,
+		       iint->readcount);
+		iint->readcount = 0;
+	}
+	if (iint->writecount != 0) {
+		printk(KERN_INFO "%s: writecount: %ld\n", __FUNCTION__,
+		       iint->writecount);
+		iint->writecount = 0;
+	}
+	if (iint->opencount != 0) {
+		printk(KERN_INFO "%s: opencount: %ld\n", __FUNCTION__,
+		       iint->opencount);
+		iint->opencount = 0;
+	}
 	kref_set(&iint->refcount, 1);
 	kmem_cache_free(iint_cache, iint);
 }
@@ -174,6 +190,7 @@ static void init_once(void *foo)
 	mutex_init(&iint->mutex);
 	iint->readcount = 0;
 	iint->writecount = 0;
+	iint->opencount = 0;
 	kref_set(&iint->refcount, 1);
 }
 
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 871e356e8d6c..f4e7266f5aee 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -66,6 +66,19 @@ void ima_file_free(struct file *file)
 		return;
 
 	mutex_lock(&iint->mutex);
+	if (iint->opencount <= 0) {
+		printk(KERN_INFO
+		       "%s: %s open/free imbalance (r:%ld w:%ld o:%ld f:%ld)\n",
+		       __FUNCTION__, file->f_dentry->d_name.name,
+		       iint->readcount, iint->writecount,
+		       iint->opencount, atomic_long_read(&file->f_count));
+		if (!(iint->flags & IMA_IINT_DUMP_STACK)) {
+			dump_stack();
+			iint->flags |= IMA_IINT_DUMP_STACK;
+		}
+	}
+	iint->opencount--;
+
 	if ((file->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
 		iint->readcount--;
 
@@ -119,6 +132,7 @@ static int get_path_measurement(struct ima_iint_cache *iint, struct file *file,
 		pr_info("%s dentry_open failed\n", filename);
 		return rc;
 	}
+	iint->opencount++;
 	iint->readcount++;
 
 	rc = ima_collect_measurement(iint, file);
@@ -159,6 +173,7 @@ int ima_path_check(struct path *path, int mask)
 		return 0;
 
 	mutex_lock(&iint->mutex);
+	iint->opencount++;
 	if ((mask & MAY_WRITE) || (mask == 0))
 		iint->writecount++;
 	else if (mask & (MAY_READ | MAY_EXEC))
@@ -219,6 +234,21 @@ out:
 	return rc;
 }
 
+static void opencount_get(struct file *file)
+{
+	struct inode *inode = file->f_dentry->d_inode;
+	struct ima_iint_cache *iint;
+
+	if (!ima_initialized || !S_ISREG(inode->i_mode))
+		return;
+	iint = ima_iint_find_insert_get(inode);
+	if (!iint)
+		return;
+	mutex_lock(&iint->mutex);
+	iint->opencount++;
+	mutex_unlock(&iint->mutex);
+}
+
 /**
  * ima_file_mmap - based on policy, collect/store measurement.
  * @file: pointer to the file to be measured (May be NULL)
@@ -242,6 +272,18 @@ int ima_file_mmap(struct file *file, unsigned long prot)
 	return 0;
 }
 
+/*
+ * ima_shm_check - IPC shm and shmat create/fput a file
+ *
+ * Maintain the opencount for these files to prevent unnecessary
+ * imbalance messages.
+ */
+void ima_shm_check(struct file *file)
+{
+	opencount_get(file);
+	return;
+}
+
 /**
  * ima_bprm_check - based on policy, collect/store measurement.
  * @bprm: contains the linux_binprm structure
-- 
cgit v1.2.3


From 33dccbb050bbe35b88ca8cf1228dcf3e4d4b3554 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 5 Feb 2009 21:25:32 -0800
Subject: tun: Limit amount of queued packets per device

Unlike a normal socket path, the tuntap device send path does
not have any accounting.  This means that the user-space sender
may be able to pin down arbitrary amounts of kernel memory by
continuing to send data to an end-point that is congested.

Even when this isn't an issue because of limited queueing at
most end points, this can also be a problem because its only
response to congestion is packet loss.  That is, when those
local queues at the end-point fills up, the tuntap device will
start wasting system time because it will continue to send
data there which simply gets dropped straight away.

Of course one could argue that everybody should do congestion
control end-to-end, unfortunately there are people in this world
still hooked on UDP, and they don't appear to be going away
anywhere fast.  In fact, we've always helped them by performing
accounting in our UDP code, the sole purpose of which is to
provide congestion feedback other than through packet loss.

This patch attempts to apply the same bandaid to the tuntap device.
It creates a pseudo-socket object which is used to account our
packets just as a normal socket does for UDP.  Of course things
are a little complex because we're actually reinjecting traffic
back into the stack rather than out of the stack.

The stack complexities however should have been resolved by preceding
patches.  So this one can simply start using skb_set_owner_w.

For now the accounting is essentially disabled by default for
backwards compatibility.  In particular, we set the cap to INT_MAX.
This is so that existing applications don't get confused by the
sudden arrival EAGAIN errors.

In future we may wish (or be forced to) do this by default.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/tun.c      | 167 +++++++++++++++++++++++++++++++++----------------
 fs/compat_ioctl.c      |   2 +
 include/linux/if_tun.h |   2 +
 3 files changed, 118 insertions(+), 53 deletions(-)

(limited to 'include')

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 15d67635bb10..0476549841ac 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -64,6 +64,7 @@
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
 #include <net/rtnetlink.h>
+#include <net/sock.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -95,6 +96,8 @@ struct tun_file {
 	wait_queue_head_t	read_wait;
 };
 
+struct tun_sock;
+
 struct tun_struct {
 	struct tun_file		*tfile;
 	unsigned int 		flags;
@@ -107,12 +110,24 @@ struct tun_struct {
 	struct fasync_struct	*fasync;
 
 	struct tap_filter       txflt;
+	struct sock		*sk;
+	struct socket		socket;
 
 #ifdef TUN_DEBUG
 	int debug;
 #endif
 };
 
+struct tun_sock {
+	struct sock		sk;
+	struct tun_struct	*tun;
+};
+
+static inline struct tun_sock *tun_sk(struct sock *sk)
+{
+	return container_of(sk, struct tun_sock, sk);
+}
+
 static int tun_attach(struct tun_struct *tun, struct file *file)
 {
 	struct tun_file *tfile = file->private_data;
@@ -461,7 +476,8 @@ static unsigned int tun_chr_poll(struct file *file, poll_table * wait)
 {
 	struct tun_file *tfile = file->private_data;
 	struct tun_struct *tun = __tun_get(tfile);
-	unsigned int mask = POLLOUT | POLLWRNORM;
+	struct sock *sk = tun->sk;
+	unsigned int mask = 0;
 
 	if (!tun)
 		return POLLERR;
@@ -473,6 +489,11 @@ static unsigned int tun_chr_poll(struct file *file, poll_table * wait)
 	if (!skb_queue_empty(&tun->readq))
 		mask |= POLLIN | POLLRDNORM;
 
+	if (sock_writeable(sk) ||
+	    (!test_and_set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags) &&
+	     sock_writeable(sk)))
+		mask |= POLLOUT | POLLWRNORM;
+
 	if (tun->dev->reg_state != NETREG_REGISTERED)
 		mask = POLLERR;
 
@@ -482,66 +503,35 @@ static unsigned int tun_chr_poll(struct file *file, poll_table * wait)
 
 /* prepad is the amount to reserve at front.  len is length after that.
  * linear is a hint as to how much to copy (usually headers). */
-static struct sk_buff *tun_alloc_skb(size_t prepad, size_t len, size_t linear,
-				     gfp_t gfp)
+static inline struct sk_buff *tun_alloc_skb(struct tun_struct *tun,
+					    size_t prepad, size_t len,
+					    size_t linear, int noblock)
 {
+	struct sock *sk = tun->sk;
 	struct sk_buff *skb;
-	unsigned int i;
-
-	skb = alloc_skb(prepad + len, gfp|__GFP_NOWARN);
-	if (skb) {
-		skb_reserve(skb, prepad);
-		skb_put(skb, len);
-		return skb;
-	}
+	int err;
 
 	/* Under a page?  Don't bother with paged skb. */
 	if (prepad + len < PAGE_SIZE)
-		return NULL;
+		linear = len;
 
-	/* Start with a normal skb, and add pages. */
-	skb = alloc_skb(prepad + linear, gfp);
+	skb = sock_alloc_send_pskb(sk, prepad + linear, len - linear, noblock,
+				   &err);
 	if (!skb)
-		return NULL;
+		return ERR_PTR(err);
 
 	skb_reserve(skb, prepad);
 	skb_put(skb, linear);
-
-	len -= linear;
-
-	for (i = 0; i < MAX_SKB_FRAGS; i++) {
-		skb_frag_t *f = &skb_shinfo(skb)->frags[i];
-
-		f->page = alloc_page(gfp|__GFP_ZERO);
-		if (!f->page)
-			break;
-
-		f->page_offset = 0;
-		f->size = PAGE_SIZE;
-
-		skb->data_len += PAGE_SIZE;
-		skb->len += PAGE_SIZE;
-		skb->truesize += PAGE_SIZE;
-		skb_shinfo(skb)->nr_frags++;
-
-		if (len < PAGE_SIZE) {
-			len = 0;
-			break;
-		}
-		len -= PAGE_SIZE;
-	}
-
-	/* Too large, or alloc fail? */
-	if (unlikely(len)) {
-		kfree_skb(skb);
-		skb = NULL;
-	}
+	skb->data_len = len - linear;
+	skb->len += len - linear;
 
 	return skb;
 }
 
 /* Get packet from user space buffer */
-static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, size_t count)
+static __inline__ ssize_t tun_get_user(struct tun_struct *tun,
+				       struct iovec *iv, size_t count,
+				       int noblock)
 {
 	struct tun_pi pi = { 0, cpu_to_be16(ETH_P_IP) };
 	struct sk_buff *skb;
@@ -573,9 +563,11 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv,
 			return -EINVAL;
 	}
 
-	if (!(skb = tun_alloc_skb(align, len, gso.hdr_len, GFP_KERNEL))) {
-		tun->dev->stats.rx_dropped++;
-		return -ENOMEM;
+	skb = tun_alloc_skb(tun, align, len, gso.hdr_len, noblock);
+	if (IS_ERR(skb)) {
+		if (PTR_ERR(skb) != -EAGAIN)
+			tun->dev->stats.rx_dropped++;
+		return PTR_ERR(skb);
 	}
 
 	if (skb_copy_datagram_from_iovec(skb, 0, iv, len)) {
@@ -661,7 +653,8 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv,
 static ssize_t tun_chr_aio_write(struct kiocb *iocb, const struct iovec *iv,
 			      unsigned long count, loff_t pos)
 {
-	struct tun_struct *tun = tun_get(iocb->ki_filp);
+	struct file *file = iocb->ki_filp;
+	struct tun_struct *tun = file->private_data;
 	ssize_t result;
 
 	if (!tun)
@@ -669,7 +662,8 @@ static ssize_t tun_chr_aio_write(struct kiocb *iocb, const struct iovec *iv,
 
 	DBG(KERN_INFO "%s: tun_chr_write %ld\n", tun->dev->name, count);
 
-	result = tun_get_user(tun, (struct iovec *) iv, iov_length(iv, count));
+	result = tun_get_user(tun, (struct iovec *)iv, iov_length(iv, count),
+			      file->f_flags & O_NONBLOCK);
 
 	tun_put(tun);
 	return result;
@@ -828,11 +822,40 @@ static struct rtnl_link_ops tun_link_ops __read_mostly = {
 	.validate	= tun_validate,
 };
 
+static void tun_sock_write_space(struct sock *sk)
+{
+	struct tun_struct *tun;
+
+	if (!sock_writeable(sk))
+		return;
+
+	if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
+		wake_up_interruptible_sync(sk->sk_sleep);
+
+	if (!test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags))
+		return;
+
+	tun = container_of(sk, struct tun_sock, sk)->tun;
+	kill_fasync(&tun->fasync, SIGIO, POLL_OUT);
+}
+
+static void tun_sock_destruct(struct sock *sk)
+{
+	dev_put(container_of(sk, struct tun_sock, sk)->tun->dev);
+}
+
+static struct proto tun_proto = {
+	.name		= "tun",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct tun_sock),
+};
 
 static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 {
+	struct sock *sk;
 	struct tun_struct *tun;
 	struct net_device *dev;
+	struct tun_file *tfile = file->private_data;
 	int err;
 
 	dev = __dev_get_by_name(net, ifr->ifr_name);
@@ -885,14 +908,31 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 		tun->flags = flags;
 		tun->txflt.count = 0;
 
+		err = -ENOMEM;
+		sk = sk_alloc(net, AF_UNSPEC, GFP_KERNEL, &tun_proto);
+		if (!sk)
+			goto err_free_dev;
+
+		/* This ref count is for tun->sk. */
+		dev_hold(dev);
+		sock_init_data(&tun->socket, sk);
+		sk->sk_write_space = tun_sock_write_space;
+		sk->sk_destruct = tun_sock_destruct;
+		sk->sk_sndbuf = INT_MAX;
+		sk->sk_sleep = &tfile->read_wait;
+
+		tun->sk = sk;
+		container_of(sk, struct tun_sock, sk)->tun = tun;
+
 		tun_net_init(dev);
 
 		if (strchr(dev->name, '%')) {
 			err = dev_alloc_name(dev, dev->name);
 			if (err < 0)
-				goto err_free_dev;
+				goto err_free_sk;
 		}
 
+		err = -EINVAL;
 		err = register_netdevice(tun->dev);
 		if (err < 0)
 			goto err_free_dev;
@@ -928,6 +968,8 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 	strcpy(ifr->ifr_name, tun->dev->name);
 	return 0;
 
+ err_free_sk:
+	sock_put(sk);
  err_free_dev:
 	free_netdev(dev);
  failed:
@@ -1012,6 +1054,7 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file,
 	struct tun_struct *tun;
 	void __user* argp = (void __user*)arg;
 	struct ifreq ifr;
+	int sndbuf;
 	int ret;
 
 	if (cmd == TUNSETIFF || _IOC_TYPE(cmd) == 0x89)
@@ -1151,6 +1194,22 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file,
 		ret = dev_set_mac_address(tun->dev, &ifr.ifr_hwaddr);
 		rtnl_unlock();
 		break;
+
+	case TUNGETSNDBUF:
+		sndbuf = tun->sk->sk_sndbuf;
+		if (copy_to_user(argp, &sndbuf, sizeof(sndbuf)))
+			ret = -EFAULT;
+		break;
+
+	case TUNSETSNDBUF:
+		if (copy_from_user(&sndbuf, argp, sizeof(sndbuf))) {
+			ret = -EFAULT;
+			break;
+		}
+
+		tun->sk->sk_sndbuf = sndbuf;
+		break;
+
 	default:
 		ret = -EINVAL;
 		break;
@@ -1218,8 +1277,10 @@ static int tun_chr_close(struct inode *inode, struct file *file)
 		__tun_detach(tun);
 
 		/* If desireable, unregister the netdevice. */
-		if (!(tun->flags & TUN_PERSIST))
+		if (!(tun->flags & TUN_PERSIST)) {
+			sock_put(tun->sk);
 			unregister_netdevice(tun->dev);
+		}
 
 		rtnl_unlock();
 	}
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index c8f8d5904f5e..c03c10d7fb6b 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1988,6 +1988,8 @@ COMPATIBLE_IOCTL(TUNSETGROUP)
 COMPATIBLE_IOCTL(TUNGETFEATURES)
 COMPATIBLE_IOCTL(TUNSETOFFLOAD)
 COMPATIBLE_IOCTL(TUNSETTXFILTER)
+COMPATIBLE_IOCTL(TUNGETSNDBUF)
+COMPATIBLE_IOCTL(TUNSETSNDBUF)
 /* Big V */
 COMPATIBLE_IOCTL(VT_SETMODE)
 COMPATIBLE_IOCTL(VT_GETMODE)
diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h
index 8529f57ba263..049d6c9428db 100644
--- a/include/linux/if_tun.h
+++ b/include/linux/if_tun.h
@@ -46,6 +46,8 @@
 #define TUNSETOFFLOAD  _IOW('T', 208, unsigned int)
 #define TUNSETTXFILTER _IOW('T', 209, unsigned int)
 #define TUNGETIFF      _IOR('T', 210, unsigned int)
+#define TUNGETSNDBUF   _IOR('T', 211, int)
+#define TUNSETSNDBUF   _IOW('T', 212, int)
 
 /* TUNSETIFF ifr flags */
 #define IFF_TUN		0x0001
-- 
cgit v1.2.3


From fe2918b098cdbf55b69ba8762bd3de0ae64f33ff Mon Sep 17 00:00:00 2001
From: Graf Yang <graf.yang@analog.com>
Date: Thu, 5 Feb 2009 21:26:19 -0800
Subject: net: fix some trailing whitespaces

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/if_ether.h  |  8 ++++----
 include/linux/netdevice.h | 10 +++++-----
 2 files changed, 9 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index 7f3c735f422b..0216e1bdbc56 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -17,7 +17,7 @@
  *		as published by the Free Software Foundation; either version
  *		2 of the License, or (at your option) any later version.
  */
- 
+
 #ifndef _LINUX_IF_ETHER_H
 #define _LINUX_IF_ETHER_H
 
@@ -25,7 +25,7 @@
 
 /*
  *	IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
- *	and FCS/CRC (frame check sequence). 
+ *	and FCS/CRC (frame check sequence).
  */
 
 #define ETH_ALEN	6		/* Octets in one ethernet addr	 */
@@ -83,7 +83,7 @@
 /*
  *	Non DIX types. Won't clash for 1500 types.
  */
- 
+
 #define ETH_P_802_3	0x0001		/* Dummy type for 802.3 frames  */
 #define ETH_P_AX25	0x0002		/* Dummy protocol id for AX.25  */
 #define ETH_P_ALL	0x0003		/* Every packet (be careful!!!) */
@@ -109,7 +109,7 @@
 /*
  *	This is an Ethernet frame header.
  */
- 
+
 struct ethhdr {
 	unsigned char	h_dest[ETH_ALEN];	/* destination eth addr	*/
 	unsigned char	h_source[ETH_ALEN];	/* source ether addr	*/
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 7a5057fbb7cd..864519e585fc 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -96,7 +96,7 @@ struct wireless_dev;
  *	Compute the worst case header length according to the protocols
  *	used.
  */
- 
+
 #if defined(CONFIG_WLAN_80211) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
 # if defined(CONFIG_MAC80211_MESH)
 #  define LL_MAX_HEADER 128
@@ -124,7 +124,7 @@ struct wireless_dev;
  *	Network device statistics. Akin to the 2.0 ether stats but
  *	with byte counters.
  */
- 
+
 struct net_device_stats
 {
 	unsigned long	rx_packets;		/* total packets received	*/
@@ -285,7 +285,7 @@ enum netdev_state_t
 
 /*
  * This structure holds at boot time configured netdevice settings. They
- * are then used in the device probing. 
+ * are then used in the device probing.
  */
 struct netdev_boot_setup {
 	char name[IFNAMSIZ];
@@ -740,7 +740,7 @@ struct net_device
 	void			*dsa_ptr;	/* dsa specific data */
 #endif
 	void 			*atalk_ptr;	/* AppleTalk link 	*/
-	void			*ip_ptr;	/* IPv4 specific data	*/  
+	void			*ip_ptr;	/* IPv4 specific data	*/
 	void                    *dn_ptr;        /* DECnet specific data */
 	void                    *ip6_ptr;       /* IPv6 specific data */
 	void			*ec_ptr;	/* Econet specific data	*/
@@ -753,7 +753,7 @@ struct net_device
  */
 	unsigned long		last_rx;	/* Time of last Rx	*/
 	/* Interface address info used in eth_type_trans() */
-	unsigned char		dev_addr[MAX_ADDR_LEN];	/* hw address, (before bcast 
+	unsigned char		dev_addr[MAX_ADDR_LEN];	/* hw address, (before bcast
 							   because most packets are unicast) */
 
 	unsigned char		broadcast[MAX_ADDR_LEN];	/* hw bcast add	*/
-- 
cgit v1.2.3


From d6301d3dd1c287b32132dda15272a50c11e92a14 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sun, 8 Feb 2009 19:24:13 -0800
Subject: net: Increase default NET_SKB_PAD to 32.

Several devices need to insert some "pre headers" in front of the
main packet data when they transmit a packet.

Currently we allocate only 16 bytes of pad room and this ends up not
being enough for some types of hardware (NIU, usb-net, s390 qeth,
etc.)

So increase this to 32.

Note that drivers still need to check in their transmit routine
whether enough headroom exists, and if not use skb_realloc_headroom().
Tunneling, IPSEC, and other encapsulation methods can cause the
padding area to be used up.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 08670d017479..5eba4007e07f 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1287,7 +1287,7 @@ static inline int skb_network_offset(const struct sk_buff *skb)
  * The networking layer reserves some headroom in skb data (via
  * dev_alloc_skb). This is used to avoid having to reallocate skb data when
  * the header has to grow. In the default case, if the header has to grow
- * 16 bytes or less we avoid the reallocation.
+ * 32 bytes or less we avoid the reallocation.
  *
  * Unfortunately this headroom changes the DMA alignment of the resulting
  * network packet. As for NET_IP_ALIGN, this unaligned DMA is expensive
@@ -1295,11 +1295,11 @@ static inline int skb_network_offset(const struct sk_buff *skb)
  * perhaps setting it to a cacheline in size (since that will maintain
  * cacheline alignment of the DMA). It must be a power of 2.
  *
- * Various parts of the networking layer expect at least 16 bytes of
+ * Various parts of the networking layer expect at least 32 bytes of
  * headroom, you should not reduce this.
  */
 #ifndef NET_SKB_PAD
-#define NET_SKB_PAD	16
+#define NET_SKB_PAD	32
 #endif
 
 extern int ___pskb_trim(struct sk_buff *skb, unsigned int len);
-- 
cgit v1.2.3


From 4ae5544f9a33e4ae306e337f96951eb3ff2df6d9 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sun, 8 Feb 2009 18:00:36 +0000
Subject: gro: Remember number of held packets instead of counting every time

This patch prepares for the move of the same_flow checks out of
dev_gro_receive.  As such we need to remember the number of held
packets since doing a loop just to count them every time is silly.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h |  3 +++
 net/core/dev.c            | 12 +++++++-----
 2 files changed, 10 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 864519e585fc..9ee344bc6c13 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -314,6 +314,9 @@ struct napi_struct {
 	spinlock_t		poll_lock;
 	int			poll_owner;
 #endif
+
+	unsigned int		gro_count;
+
 	struct net_device	*dev;
 	struct list_head	dev_list;
 	struct sk_buff		*gro_list;
diff --git a/net/core/dev.c b/net/core/dev.c
index 709a9a922258..ae0b66936abe 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2372,6 +2372,7 @@ void napi_gro_flush(struct napi_struct *napi)
 		napi_gro_complete(skb);
 	}
 
+	napi->gro_count = 0;
 	napi->gro_list = NULL;
 }
 EXPORT_SYMBOL(napi_gro_flush);
@@ -2402,7 +2403,6 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	struct packet_type *ptype;
 	__be16 type = skb->protocol;
 	struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
-	int count = 0;
 	int same_flow;
 	int mac_len;
 	int ret;
@@ -2430,8 +2430,6 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 		NAPI_GRO_CB(skb)->free = 0;
 
 		for (p = napi->gro_list; p; p = p->next) {
-			count++;
-
 			if (!NAPI_GRO_CB(p)->same_flow)
 				continue;
 
@@ -2457,15 +2455,16 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 		*pp = nskb->next;
 		nskb->next = NULL;
 		napi_gro_complete(nskb);
-		count--;
+		napi->gro_count--;
 	}
 
 	if (same_flow)
 		goto ok;
 
-	if (NAPI_GRO_CB(skb)->flush || count >= MAX_GRO_SKBS)
+	if (NAPI_GRO_CB(skb)->flush || napi->gro_count >= MAX_GRO_SKBS)
 		goto normal;
 
+	napi->gro_count++;
 	NAPI_GRO_CB(skb)->count = 1;
 	skb_shinfo(skb)->gso_size = skb_gro_len(skb);
 	skb->next = napi->gro_list;
@@ -2713,6 +2712,7 @@ void netif_napi_add(struct net_device *dev, struct napi_struct *napi,
 		    int (*poll)(struct napi_struct *, int), int weight)
 {
 	INIT_LIST_HEAD(&napi->poll_list);
+	napi->gro_count = 0;
 	napi->gro_list = NULL;
 	napi->skb = NULL;
 	napi->poll = poll;
@@ -2741,6 +2741,7 @@ void netif_napi_del(struct napi_struct *napi)
 	}
 
 	napi->gro_list = NULL;
+	napi->gro_count = 0;
 }
 EXPORT_SYMBOL(netif_napi_del);
 
@@ -5246,6 +5247,7 @@ static int __init net_dev_init(void)
 		queue->backlog.poll = process_backlog;
 		queue->backlog.weight = weight_p;
 		queue->backlog.gro_list = NULL;
+		queue->backlog.gro_count = 0;
 	}
 
 	dev_boot_phase = 0;
-- 
cgit v1.2.3


From aa4b9f533ed5a22952e038b9fac2447ccc682124 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sun, 8 Feb 2009 18:00:37 +0000
Subject: gro: Optimise Ethernet header comparison

This patch optimises the Ethernet header comparison to use 2-byte
and 4-byte xors instead of memcmp.  In order to facilitate this,
the actual comparison is now carried out by the callers of the
shared dev_gro_receive function.

This has a significant impact when receiving 1500B packets through
10GbE.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/etherdevice.h | 21 +++++++++++++++++++++
 include/linux/netdevice.h   |  7 +++++++
 net/8021q/vlan_core.c       |  4 +++-
 net/core/dev.c              | 23 ++---------------------
 4 files changed, 33 insertions(+), 22 deletions(-)

(limited to 'include')

diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 1cb0f0b90926..a1f17abba7dc 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -184,4 +184,25 @@ static inline unsigned compare_ether_addr_64bits(const u8 addr1[6+2],
 }
 #endif	/* __KERNEL__ */
 
+/**
+ * compare_ether_header - Compare two Ethernet headers
+ * @a: Pointer to Ethernet header
+ * @b: Pointer to Ethernet header
+ *
+ * Compare two ethernet headers, returns 0 if equal.
+ * This assumes that the network header (i.e., IP header) is 4-byte
+ * aligned OR the platform can handle unaligned access.  This is the
+ * case for all packets coming into netif_receive_skb or similar
+ * entry points.
+ */
+
+static inline int compare_ether_header(const void *a, const void *b)
+{
+	u32 *a32 = (u32 *)((u8 *)a + 2);
+	u32 *b32 = (u32 *)((u8 *)b + 2);
+
+	return (*(u16 *)a ^ *(u16 *)b) | (a32[0] ^ b32[0]) |
+	       (a32[1] ^ b32[1]) | (a32[2] ^ b32[2]);
+}
+
 #endif	/* _LINUX_ETHERDEVICE_H */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9ee344bc6c13..355662aac940 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1117,6 +1117,13 @@ static inline void skb_gro_reset_offset(struct sk_buff *skb)
 	NAPI_GRO_CB(skb)->data_offset = 0;
 }
 
+static inline void *skb_gro_mac_header(struct sk_buff *skb)
+{
+	return skb_mac_header(skb) < skb->data ? skb_mac_header(skb) :
+	       page_address(skb_shinfo(skb)->frags[0].page) +
+	       skb_shinfo(skb)->frags[0].page_offset;
+}
+
 static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
 				  unsigned short type,
 				  const void *daddr, const void *saddr,
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 378fa69d625a..70435af153f2 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -85,7 +85,9 @@ static int vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
 		goto drop;
 
 	for (p = napi->gro_list; p; p = p->next) {
-		NAPI_GRO_CB(p)->same_flow = p->dev == skb->dev;
+		NAPI_GRO_CB(p)->same_flow =
+			p->dev == skb->dev && !compare_ether_header(
+				skb_mac_header(p), skb_gro_mac_header(skb));
 		NAPI_GRO_CB(p)->flush = 0;
 	}
 
diff --git a/net/core/dev.c b/net/core/dev.c
index ae0b66936abe..1e27a67df242 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -215,13 +215,6 @@ static inline struct hlist_head *dev_index_hash(struct net *net, int ifindex)
 	return &net->dev_index_head[ifindex & ((1 << NETDEV_HASHBITS) - 1)];
 }
 
-static inline void *skb_gro_mac_header(struct sk_buff *skb)
-{
-	return skb_mac_header(skb) < skb->data ? skb_mac_header(skb) :
-	       page_address(skb_shinfo(skb)->frags[0].page) +
-	       skb_shinfo(skb)->frags[0].page_offset;
-}
-
 /* Device list insertion */
 static int list_netdevice(struct net_device *dev)
 {
@@ -2415,29 +2408,16 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(ptype, head, list) {
-		struct sk_buff *p;
-		void *mac;
-
 		if (ptype->type != type || ptype->dev || !ptype->gro_receive)
 			continue;
 
 		skb_set_network_header(skb, skb_gro_offset(skb));
-		mac = skb_gro_mac_header(skb);
 		mac_len = skb->network_header - skb->mac_header;
 		skb->mac_len = mac_len;
 		NAPI_GRO_CB(skb)->same_flow = 0;
 		NAPI_GRO_CB(skb)->flush = 0;
 		NAPI_GRO_CB(skb)->free = 0;
 
-		for (p = napi->gro_list; p; p = p->next) {
-			if (!NAPI_GRO_CB(p)->same_flow)
-				continue;
-
-			if (p->mac_len != mac_len ||
-			    memcmp(skb_mac_header(p), mac, mac_len))
-				NAPI_GRO_CB(p)->same_flow = 0;
-		}
-
 		pp = ptype->gro_receive(&napi->gro_list, skb);
 		break;
 	}
@@ -2492,7 +2472,8 @@ static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	struct sk_buff *p;
 
 	for (p = napi->gro_list; p; p = p->next) {
-		NAPI_GRO_CB(p)->same_flow = 1;
+		NAPI_GRO_CB(p)->same_flow = !compare_ether_header(
+			skb_mac_header(p), skb_gro_mac_header(skb));
 		NAPI_GRO_CB(p)->flush = 0;
 	}
 
-- 
cgit v1.2.3


From 8bd4bb7a35e8ebb015a531218614c48e10a3c4ee Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 30 Jan 2009 17:27:45 +0100
Subject: ALSA: Add subdevice_mask field to quirk entries

Introduced a new field, subdevice_mask, which specifies the bitmask
to match with the given subdevice ID.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/core.h | 16 ++++++++++++++--
 sound/core/misc.c    | 10 ++++++----
 2 files changed, 20 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/include/sound/core.h b/include/sound/core.h
index f632484bc743..f67952a61a2d 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -446,21 +446,33 @@ static inline int __snd_bug_on(int cond)
 struct snd_pci_quirk {
 	unsigned short subvendor;	/* PCI subvendor ID */
 	unsigned short subdevice;	/* PCI subdevice ID */
+	unsigned short subdevice_mask;	/* bitmask to match */
 	int value;			/* value */
 #ifdef CONFIG_SND_DEBUG_VERBOSE
 	const char *name;		/* name of the device (optional) */
 #endif
 };
 
-#define _SND_PCI_QUIRK_ID(vend,dev) \
-	.subvendor = (vend), .subdevice = (dev)
+#define _SND_PCI_QUIRK_ID_MASK(vend, mask, dev)	\
+	.subvendor = (vend), .subdevice = (dev), .subdevice_mask = (mask)
+#define _SND_PCI_QUIRK_ID(vend, dev) \
+	_SND_PCI_QUIRK_ID_MASK(vend, 0xffff, dev)
 #define SND_PCI_QUIRK_ID(vend,dev) {_SND_PCI_QUIRK_ID(vend, dev)}
 #ifdef CONFIG_SND_DEBUG_VERBOSE
 #define SND_PCI_QUIRK(vend,dev,xname,val) \
 	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val), .name = (xname)}
+#define SND_PCI_QUIRK_VENDOR(vend, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val), .name = (xname)}
+#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, mask, dev),			\
+			.value = (val), .name = (xname)}
 #else
 #define SND_PCI_QUIRK(vend,dev,xname,val) \
 	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val)}
+#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), .value = (val)}
+#define SND_PCI_QUIRK_VENDOR(vend, xname, val)			\
+	{_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val)}
 #endif
 
 const struct snd_pci_quirk *
diff --git a/sound/core/misc.c b/sound/core/misc.c
index 38524f615d94..a9710e0c97af 100644
--- a/sound/core/misc.c
+++ b/sound/core/misc.c
@@ -95,12 +95,14 @@ snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list)
 {
 	const struct snd_pci_quirk *q;
 
-	for (q = list; q->subvendor; q++)
-		if (q->subvendor == pci->subsystem_vendor &&
-		    (!q->subdevice || q->subdevice == pci->subsystem_device))
+	for (q = list; q->subvendor; q++) {
+		if (q->subvendor != pci->subsystem_vendor)
+			continue;
+		if (!q->subdevice ||
+		    (pci->subsystem_device & q->subdevice_mask) == q->subdevice)
 			return q;
+	}
 	return NULL;
 }
-
 EXPORT_SYMBOL(snd_pci_quirk_lookup);
 #endif
-- 
cgit v1.2.3


From 7fee5372d814c4be9546e5c28ac0058258d8df3e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 30 Jan 2009 11:13:06 +0100
Subject: mac80211: remove HW_SIGNAL_DB

Giving the signal in dB isn't much more useful to userspace
than giving the signal in unspecified units. This removes
some radiotap information for zd1211 (the only driver using
this flag), but it helps a lot for getting cfg80211-based
scanning which won't support dB, and zd1211 being dB is a
little fishy anyway.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/zd1211rw/zd_mac.c |  2 +-
 include/net/mac80211.h                 | 22 ++++++++--------------
 net/mac80211/main.c                    |  1 -
 net/mac80211/rx.c                      | 11 +----------
 net/mac80211/wext.c                    |  3 +--
 5 files changed, 11 insertions(+), 28 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index a611ad857983..651807dfb508 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -967,7 +967,7 @@ struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)
 	hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &mac->band;
 
 	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
-		    IEEE80211_HW_SIGNAL_DB;
+		    IEEE80211_HW_SIGNAL_UNSPEC;
 
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_MESH_POINT) |
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e2144f0e8728..409e2c69269d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -860,11 +860,6 @@ enum ieee80211_tkip_key_type {
  *	expect values between 0 and @max_signal.
  *	If possible please provide dB or dBm instead.
  *
- * @IEEE80211_HW_SIGNAL_DB:
- *	Hardware gives signal values in dB, decibel difference from an
- *	arbitrary, fixed reference. We expect values between 0 and @max_signal.
- *	If possible please provide dBm instead.
- *
  * @IEEE80211_HW_SIGNAL_DBM:
  *	Hardware gives signal values in dBm, decibel difference from
  *	one milliwatt. This is the preferred method since it is standardized
@@ -900,15 +895,14 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE		= 1<<3,
 	IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE	= 1<<4,
 	IEEE80211_HW_SIGNAL_UNSPEC			= 1<<5,
-	IEEE80211_HW_SIGNAL_DB				= 1<<6,
-	IEEE80211_HW_SIGNAL_DBM				= 1<<7,
-	IEEE80211_HW_NOISE_DBM				= 1<<8,
-	IEEE80211_HW_SPECTRUM_MGMT			= 1<<9,
-	IEEE80211_HW_AMPDU_AGGREGATION			= 1<<10,
-	IEEE80211_HW_SUPPORTS_PS			= 1<<11,
-	IEEE80211_HW_PS_NULLFUNC_STACK			= 1<<12,
-	IEEE80211_HW_SUPPORTS_DYNAMIC_PS		= 1<<13,
-	IEEE80211_HW_MFP_CAPABLE			= 1<<14,
+	IEEE80211_HW_SIGNAL_DBM				= 1<<6,
+	IEEE80211_HW_NOISE_DBM				= 1<<7,
+	IEEE80211_HW_SPECTRUM_MGMT			= 1<<8,
+	IEEE80211_HW_AMPDU_AGGREGATION			= 1<<9,
+	IEEE80211_HW_SUPPORTS_PS			= 1<<10,
+	IEEE80211_HW_PS_NULLFUNC_STACK			= 1<<11,
+	IEEE80211_HW_SUPPORTS_DYNAMIC_PS		= 1<<12,
+	IEEE80211_HW_MFP_CAPABLE			= 1<<13,
 };
 
 /**
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index a109c06e8e4e..7247b303e966 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -884,7 +884,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	local->hw.conf.listen_interval = local->hw.max_listen_interval;
 
 	local->wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
-						  IEEE80211_HW_SIGNAL_DB |
 						  IEEE80211_HW_SIGNAL_DBM) ?
 			       IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
 	local->wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 1a59382976e6..8e8ddbfcd236 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -86,8 +86,7 @@ ieee80211_rx_radiotap_len(struct ieee80211_local *local,
 
 	if (status->flag & RX_FLAG_TSFT)
 		len += 8;
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_DB ||
-	    local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
 		len += 1;
 	if (local->hw.flags & IEEE80211_HW_NOISE_DBM)
 		len += 1;
@@ -199,14 +198,6 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	*pos = status->antenna;
 	pos++;
 
-	/* IEEE80211_RADIOTAP_DB_ANTSIGNAL */
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_DB) {
-		*pos = status->signal;
-		rthdr->it_present |=
-			cpu_to_le32(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL);
-		pos++;
-	}
-
 	/* IEEE80211_RADIOTAP_DB_ANTNOISE is not used */
 
 	/* IEEE80211_RADIOTAP_RX_FLAGS */
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 5c88b8246bbb..bad1cfbfdf18 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -173,8 +173,7 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev,
 	range->num_encoding_sizes = 2;
 	range->max_encoding_tokens = NUM_DEFAULT_KEYS;
 
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC ||
-	    local->hw.flags & IEEE80211_HW_SIGNAL_DB)
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
 		range->max_qual.level = local->hw.max_signal;
 	else if  (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
 		range->max_qual.level = -110;
-- 
cgit v1.2.3


From f130347c2dd8e7ce0757cd3cf80bedbc6ed63c4c Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Fri, 30 Jan 2009 09:26:42 -0800
Subject: cfg80211: add get reg command

This lets userspace request to get the currently set
regulatory domain.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h |  4 +++
 net/wireless/nl80211.c  | 81 +++++++++++++++++++++++++++++++++++++++++++++++++
 net/wireless/reg.c      |  2 +-
 net/wireless/reg.h      |  2 ++
 4 files changed, 88 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 76aae3d8e97e..4bc27049f4e5 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -113,6 +113,8 @@
  * @NL80211_CMD_SET_BSS: Set BSS attributes for BSS identified by
  *	%NL80211_ATTR_IFINDEX.
  *
+ * @NL80211_CMD_GET_REG: ask the wireless core to send us its currently set
+ * 	regulatory domain.
  * @NL80211_CMD_SET_REG: Set current regulatory domain. CRDA sends this command
  *	after being queried by the kernel. CRDA replies by sending a regulatory
  *	domain structure which consists of %NL80211_ATTR_REG_ALPHA set to our
@@ -188,6 +190,8 @@ enum nl80211_commands {
 
 	NL80211_CMD_SET_MGMT_EXTRA_IE,
 
+	NL80211_CMD_GET_REG,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e69da8d20474..d452396006ee 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2093,6 +2093,81 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
 
 #undef FILL_IN_MESH_PARAM_IF_SET
 
+static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
+{
+	struct sk_buff *msg;
+	void *hdr = NULL;
+	struct nlattr *nl_reg_rules;
+	unsigned int i;
+	int err = -EINVAL;
+
+	mutex_lock(&cfg80211_drv_mutex);
+
+	if (!cfg80211_regdomain)
+		goto out;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg) {
+		err = -ENOBUFS;
+		goto out;
+	}
+
+	hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+			     NL80211_CMD_GET_REG);
+	if (!hdr)
+		goto nla_put_failure;
+
+	NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
+		cfg80211_regdomain->alpha2);
+
+	nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
+	if (!nl_reg_rules)
+		goto nla_put_failure;
+
+	for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
+		struct nlattr *nl_reg_rule;
+		const struct ieee80211_reg_rule *reg_rule;
+		const struct ieee80211_freq_range *freq_range;
+		const struct ieee80211_power_rule *power_rule;
+
+		reg_rule = &cfg80211_regdomain->reg_rules[i];
+		freq_range = &reg_rule->freq_range;
+		power_rule = &reg_rule->power_rule;
+
+		nl_reg_rule = nla_nest_start(msg, i);
+		if (!nl_reg_rule)
+			goto nla_put_failure;
+
+		NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
+			reg_rule->flags);
+		NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
+			freq_range->start_freq_khz);
+		NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
+			freq_range->end_freq_khz);
+		NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
+			freq_range->max_bandwidth_khz);
+		NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
+			power_rule->max_antenna_gain);
+		NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
+			power_rule->max_eirp);
+
+		nla_nest_end(msg, nl_reg_rule);
+	}
+
+	nla_nest_end(msg, nl_reg_rules);
+
+	genlmsg_end(msg, hdr);
+	err = genlmsg_unicast(msg, info->snd_pid);
+	goto out;
+
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	err = -EMSGSIZE;
+out:
+	mutex_unlock(&cfg80211_drv_mutex);
+	return err;
+}
+
 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
 {
 	struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
@@ -2332,6 +2407,12 @@ static struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_ADMIN_PERM,
 	},
+	{
+		.cmd = NL80211_CMD_GET_REG,
+		.doit = nl80211_get_reg,
+		.policy = nl80211_policy,
+		/* can be retrieved by unprivileged users */
+	},
 	{
 		.cmd = NL80211_CMD_SET_REG,
 		.doit = nl80211_set_reg,
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index f643d3981102..2323644330cd 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -57,7 +57,7 @@ static u32 supported_bandwidths[] = {
 /* Central wireless core regulatory domains, we only need two,
  * the current one and a world regulatory domain in case we have no
  * information to give us an alpha2 */
-static const struct ieee80211_regdomain *cfg80211_regdomain;
+const struct ieee80211_regdomain *cfg80211_regdomain;
 
 /* We use this as a place for the rd structure built from the
  * last parsed country IE to rest until CRDA gets back to us with
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index eb1dd5bc9b27..fe8c83f34fb7 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -1,6 +1,8 @@
 #ifndef __NET_WIRELESS_REG_H
 #define __NET_WIRELESS_REG_H
 
+extern const struct ieee80211_regdomain *cfg80211_regdomain;
+
 bool is_world_regdom(const char *alpha2);
 bool reg_is_valid_request(const char *alpha2);
 
-- 
cgit v1.2.3


From 0c2bec96945ccfc4a58a88d73531e392972ba6c5 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike@compulab.co.il>
Date: Tue, 3 Feb 2009 09:04:20 +0200
Subject: libertas: if_spi: add ability to call board specific setup/teardown
 methods

In certain cases it is required to perform board specific actions
before activating libertas G-SPI interface. These actions may include
power up of the chip, GPIOs setup, proper pin-strapping and SPI
controller config.
This patch adds ability to call board specific setup/teardown methods

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Andrey Yurovsky <andrey@cozybit.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/libertas/if_spi.c | 15 +++++++++++++++
 include/linux/spi/libertas_spi.h       |  7 +++++++
 2 files changed, 22 insertions(+)

(limited to 'include')

diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index 7c02ea314fd1..07311e71af92 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -42,6 +42,7 @@ struct if_spi_packet {
 struct if_spi_card {
 	struct spi_device		*spi;
 	struct lbs_private		*priv;
+	struct libertas_spi_platform_data *pdata;
 
 	char				helper_fw_name[FIRMWARE_NAME_MAX];
 	char				main_fw_name[FIRMWARE_NAME_MAX];
@@ -1022,6 +1023,17 @@ static int __devinit if_spi_probe(struct spi_device *spi)
 
 	lbs_deb_enter(LBS_DEB_SPI);
 
+	if (!pdata) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	if (pdata->setup) {
+		err = pdata->setup(spi);
+		if (err)
+			goto out;
+	}
+
 	/* Allocate card structure to represent this specific device */
 	card = kzalloc(sizeof(struct if_spi_card), GFP_KERNEL);
 	if (!card) {
@@ -1029,6 +1041,7 @@ static int __devinit if_spi_probe(struct spi_device *spi)
 		goto out;
 	}
 	spi_set_drvdata(spi, card);
+	card->pdata = pdata;
 	card->spi = spi;
 	card->gpio_cs = pdata->gpio_cs;
 	card->prev_xfer_time = jiffies;
@@ -1158,6 +1171,8 @@ static int __devexit libertas_spi_remove(struct spi_device *spi)
 	if_spi_terminate_spi_thread(card);
 	lbs_remove_card(priv); /* will call free_netdev */
 	gpio_free(card->gpio_cs);
+	if (card->pdata->teardown)
+		card->pdata->teardown(spi);
 	free_if_spi_card(card);
 	lbs_deb_leave(LBS_DEB_SPI);
 	return 0;
diff --git a/include/linux/spi/libertas_spi.h b/include/linux/spi/libertas_spi.h
index ada71b4f3788..79506f5f9e67 100644
--- a/include/linux/spi/libertas_spi.h
+++ b/include/linux/spi/libertas_spi.h
@@ -10,6 +10,9 @@
  */
 #ifndef _LIBERTAS_SPI_H_
 #define _LIBERTAS_SPI_H_
+
+struct spi_device;
+
 struct libertas_spi_platform_data {
 	/* There are two ways to read data from the WLAN module's SPI
 	 * interface. Setting 0 or 1 here controls which one is used.
@@ -21,5 +24,9 @@ struct libertas_spi_platform_data {
 
 	/* GPIO number to use as chip select */
 	u16 gpio_cs;
+
+	/* Board specific setup/teardown */
+	int (*setup)(struct spi_device *spi);
+	int (*teardown)(struct spi_device *spi);
 };
 #endif
-- 
cgit v1.2.3


From c9703146158c0415a60799570397e488bc982af5 Mon Sep 17 00:00:00 2001
From: Michael Buesch <mb@bu3sch.de>
Date: Tue, 3 Feb 2009 19:23:18 +0100
Subject: ssb: Add PMU support

This adds support for the SSB PMU.
A PMU is found on Low-Power devices.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/ssb/Makefile                      |   1 +
 drivers/ssb/driver_chipcommon.c           |  14 +-
 drivers/ssb/driver_chipcommon_pmu.c       | 508 ++++++++++++++++++++++++++++++
 include/linux/ssb/ssb_driver_chipcommon.h | 224 +++++++++++++
 4 files changed, 734 insertions(+), 13 deletions(-)
 create mode 100644 drivers/ssb/driver_chipcommon_pmu.c

(limited to 'include')

diff --git a/drivers/ssb/Makefile b/drivers/ssb/Makefile
index 6f255e9c5af9..cfbb74f2982e 100644
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -9,6 +9,7 @@ ssb-$(CONFIG_SSB_PCMCIAHOST)		+= pcmcia.o
 
 # built-in drivers
 ssb-y					+= driver_chipcommon.o
+ssb-y					+= driver_chipcommon_pmu.o
 ssb-$(CONFIG_SSB_DRIVER_MIPS)		+= driver_mipscore.o
 ssb-$(CONFIG_SSB_DRIVER_EXTIF)		+= driver_extif.o
 ssb-$(CONFIG_SSB_DRIVER_PCICORE)	+= driver_pcicore.o
diff --git a/drivers/ssb/driver_chipcommon.c b/drivers/ssb/driver_chipcommon.c
index 571f4fd55236..9681536163ca 100644
--- a/drivers/ssb/driver_chipcommon.c
+++ b/drivers/ssb/driver_chipcommon.c
@@ -26,19 +26,6 @@ enum ssb_clksrc {
 };
 
 
-static inline u32 chipco_read32(struct ssb_chipcommon *cc,
-				u16 offset)
-{
-	return ssb_read32(cc->dev, offset);
-}
-
-static inline void chipco_write32(struct ssb_chipcommon *cc,
-				  u16 offset,
-				  u32 value)
-{
-	ssb_write32(cc->dev, offset, value);
-}
-
 static inline u32 chipco_write32_masked(struct ssb_chipcommon *cc, u16 offset,
 					u32 mask, u32 value)
 {
@@ -246,6 +233,7 @@ void ssb_chipcommon_init(struct ssb_chipcommon *cc)
 {
 	if (!cc->dev)
 		return; /* We don't have a ChipCommon */
+	ssb_pmu_init(cc);
 	chipco_powercontrol_init(cc);
 	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
 	calc_fast_powerup_delay(cc);
diff --git a/drivers/ssb/driver_chipcommon_pmu.c b/drivers/ssb/driver_chipcommon_pmu.c
new file mode 100644
index 000000000000..4aaddeec55a2
--- /dev/null
+++ b/drivers/ssb/driver_chipcommon_pmu.c
@@ -0,0 +1,508 @@
+/*
+ * Sonics Silicon Backplane
+ * Broadcom ChipCommon Power Management Unit driver
+ *
+ * Copyright 2009, Michael Buesch <mb@bu3sch.de>
+ * Copyright 2007, Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_regs.h>
+#include <linux/ssb/ssb_driver_chipcommon.h>
+#include <linux/delay.h>
+
+#include "ssb_private.h"
+
+static u32 ssb_chipco_pll_read(struct ssb_chipcommon *cc, u32 offset)
+{
+	chipco_write32(cc, SSB_CHIPCO_PLLCTL_ADDR, offset);
+	return chipco_read32(cc, SSB_CHIPCO_PLLCTL_DATA);
+}
+
+static void ssb_chipco_pll_write(struct ssb_chipcommon *cc,
+				 u32 offset, u32 value)
+{
+	chipco_write32(cc, SSB_CHIPCO_PLLCTL_ADDR, offset);
+	chipco_write32(cc, SSB_CHIPCO_PLLCTL_DATA, value);
+}
+
+struct pmu0_plltab_entry {
+	u16 freq;	/* Crystal frequency in kHz.*/
+	u8 xf;		/* Crystal frequency value for PMU control */
+	u8 wb_int;
+	u32 wb_frac;
+};
+
+static const struct pmu0_plltab_entry pmu0_plltab[] = {
+	{ .freq = 12000, .xf =  1, .wb_int = 73, .wb_frac = 349525, },
+	{ .freq = 13000, .xf =  2, .wb_int = 67, .wb_frac = 725937, },
+	{ .freq = 14400, .xf =  3, .wb_int = 61, .wb_frac = 116508, },
+	{ .freq = 15360, .xf =  4, .wb_int = 57, .wb_frac = 305834, },
+	{ .freq = 16200, .xf =  5, .wb_int = 54, .wb_frac = 336579, },
+	{ .freq = 16800, .xf =  6, .wb_int = 52, .wb_frac = 399457, },
+	{ .freq = 19200, .xf =  7, .wb_int = 45, .wb_frac = 873813, },
+	{ .freq = 19800, .xf =  8, .wb_int = 44, .wb_frac = 466033, },
+	{ .freq = 20000, .xf =  9, .wb_int = 44, .wb_frac = 0,      },
+	{ .freq = 25000, .xf = 10, .wb_int = 70, .wb_frac = 419430, },
+	{ .freq = 26000, .xf = 11, .wb_int = 67, .wb_frac = 725937, },
+	{ .freq = 30000, .xf = 12, .wb_int = 58, .wb_frac = 699050, },
+	{ .freq = 38400, .xf = 13, .wb_int = 45, .wb_frac = 873813, },
+	{ .freq = 40000, .xf = 14, .wb_int = 45, .wb_frac = 0,      },
+};
+#define SSB_PMU0_DEFAULT_XTALFREQ	20000
+
+static const struct pmu0_plltab_entry * pmu0_plltab_find_entry(u32 crystalfreq)
+{
+	const struct pmu0_plltab_entry *e;
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(pmu0_plltab); i++) {
+		e = &pmu0_plltab[i];
+		if (e->freq == crystalfreq)
+			return e;
+	}
+
+	return NULL;
+}
+
+/* Tune the PLL to the crystal speed. crystalfreq is in kHz. */
+static void ssb_pmu0_pllinit_r0(struct ssb_chipcommon *cc,
+				u32 crystalfreq)
+{
+	struct ssb_bus *bus = cc->dev->bus;
+	const struct pmu0_plltab_entry *e = NULL;
+	u32 pmuctl, tmp, pllctl;
+	unsigned int i;
+
+	if ((bus->chip_id == 0x5354) && !crystalfreq) {
+		/* The 5354 crystal freq is 25MHz */
+		crystalfreq = 25000;
+	}
+	if (crystalfreq)
+		e = pmu0_plltab_find_entry(crystalfreq);
+	if (!e)
+		e = pmu0_plltab_find_entry(SSB_PMU0_DEFAULT_XTALFREQ);
+	BUG_ON(!e);
+	crystalfreq = e->freq;
+	cc->pmu.crystalfreq = e->freq;
+
+	/* Check if the PLL already is programmed to this frequency. */
+	pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
+	if (((pmuctl & SSB_CHIPCO_PMU_CTL_XTALFREQ) >> SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) == e->xf) {
+		/* We're already there... */
+		return;
+	}
+
+	ssb_printk(KERN_INFO PFX "Programming PLL to %u.%03u MHz\n",
+		   (crystalfreq / 1000), (crystalfreq % 1000));
+
+	/* First turn the PLL off. */
+	switch (bus->chip_id) {
+	case 0x4328:
+		chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
+			      ~(1 << SSB_PMURES_4328_BB_PLL_PU));
+		chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
+			      ~(1 << SSB_PMURES_4328_BB_PLL_PU));
+		break;
+	case 0x5354:
+		chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
+			      ~(1 << SSB_PMURES_5354_BB_PLL_PU));
+		chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
+			      ~(1 << SSB_PMURES_5354_BB_PLL_PU));
+		break;
+	default:
+		SSB_WARN_ON(1);
+	}
+	for (i = 1500; i; i--) {
+		tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
+		if (!(tmp & SSB_CHIPCO_CLKCTLST_HAVEHT))
+			break;
+		udelay(10);
+	}
+	tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
+	if (tmp & SSB_CHIPCO_CLKCTLST_HAVEHT)
+		ssb_printk(KERN_EMERG PFX "Failed to turn the PLL off!\n");
+
+	/* Set PDIV in PLL control 0. */
+	pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL0);
+	if (crystalfreq >= SSB_PMU0_PLLCTL0_PDIV_FREQ)
+		pllctl |= SSB_PMU0_PLLCTL0_PDIV_MSK;
+	else
+		pllctl &= ~SSB_PMU0_PLLCTL0_PDIV_MSK;
+	ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL0, pllctl);
+
+	/* Set WILD in PLL control 1. */
+	pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL1);
+	pllctl &= ~SSB_PMU0_PLLCTL1_STOPMOD;
+	pllctl &= ~(SSB_PMU0_PLLCTL1_WILD_IMSK | SSB_PMU0_PLLCTL1_WILD_FMSK);
+	pllctl |= ((u32)e->wb_int << SSB_PMU0_PLLCTL1_WILD_IMSK_SHIFT) & SSB_PMU0_PLLCTL1_WILD_IMSK;
+	pllctl |= ((u32)e->wb_frac << SSB_PMU0_PLLCTL1_WILD_FMSK_SHIFT) & SSB_PMU0_PLLCTL1_WILD_FMSK;
+	if (e->wb_frac == 0)
+		pllctl |= SSB_PMU0_PLLCTL1_STOPMOD;
+	ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL1, pllctl);
+
+	/* Set WILD in PLL control 2. */
+	pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL2);
+	pllctl &= ~SSB_PMU0_PLLCTL2_WILD_IMSKHI;
+	pllctl |= (((u32)e->wb_int >> 4) << SSB_PMU0_PLLCTL2_WILD_IMSKHI_SHIFT) & SSB_PMU0_PLLCTL2_WILD_IMSKHI;
+	ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL2, pllctl);
+
+	/* Set the crystalfrequency and the divisor. */
+	pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
+	pmuctl &= ~SSB_CHIPCO_PMU_CTL_ILP_DIV;
+	pmuctl |= (((crystalfreq + 127) / 128 - 1) << SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT)
+			& SSB_CHIPCO_PMU_CTL_ILP_DIV;
+	pmuctl &= ~SSB_CHIPCO_PMU_CTL_XTALFREQ;
+	pmuctl |= ((u32)e->xf << SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) & SSB_CHIPCO_PMU_CTL_XTALFREQ;
+	chipco_write32(cc, SSB_CHIPCO_PMU_CTL, pmuctl);
+}
+
+struct pmu1_plltab_entry {
+	u16 freq;	/* Crystal frequency in kHz.*/
+	u8 xf;		/* Crystal frequency value for PMU control */
+	u8 ndiv_int;
+	u32 ndiv_frac;
+	u8 p1div;
+	u8 p2div;
+};
+
+static const struct pmu1_plltab_entry pmu1_plltab[] = {
+	{ .freq = 12000, .xf =  1, .p1div = 3, .p2div = 22, .ndiv_int =  0x9, .ndiv_frac = 0xFFFFEF, },
+	{ .freq = 13000, .xf =  2, .p1div = 1, .p2div =  6, .ndiv_int =  0xb, .ndiv_frac = 0x483483, },
+	{ .freq = 14400, .xf =  3, .p1div = 1, .p2div = 10, .ndiv_int =  0xa, .ndiv_frac = 0x1C71C7, },
+	{ .freq = 15360, .xf =  4, .p1div = 1, .p2div =  5, .ndiv_int =  0xb, .ndiv_frac = 0x755555, },
+	{ .freq = 16200, .xf =  5, .p1div = 1, .p2div = 10, .ndiv_int =  0x5, .ndiv_frac = 0x6E9E06, },
+	{ .freq = 16800, .xf =  6, .p1div = 1, .p2div = 10, .ndiv_int =  0x5, .ndiv_frac = 0x3CF3CF, },
+	{ .freq = 19200, .xf =  7, .p1div = 1, .p2div =  9, .ndiv_int =  0x5, .ndiv_frac = 0x17B425, },
+	{ .freq = 19800, .xf =  8, .p1div = 1, .p2div = 11, .ndiv_int =  0x4, .ndiv_frac = 0xA57EB,  },
+	{ .freq = 20000, .xf =  9, .p1div = 1, .p2div = 11, .ndiv_int =  0x4, .ndiv_frac = 0,        },
+	{ .freq = 24000, .xf = 10, .p1div = 3, .p2div = 11, .ndiv_int =  0xa, .ndiv_frac = 0,        },
+	{ .freq = 25000, .xf = 11, .p1div = 5, .p2div = 16, .ndiv_int =  0xb, .ndiv_frac = 0,        },
+	{ .freq = 26000, .xf = 12, .p1div = 1, .p2div =  2, .ndiv_int = 0x10, .ndiv_frac = 0xEC4EC4, },
+	{ .freq = 30000, .xf = 13, .p1div = 3, .p2div =  8, .ndiv_int =  0xb, .ndiv_frac = 0,        },
+	{ .freq = 38400, .xf = 14, .p1div = 1, .p2div =  5, .ndiv_int =  0x4, .ndiv_frac = 0x955555, },
+	{ .freq = 40000, .xf = 15, .p1div = 1, .p2div =  2, .ndiv_int =  0xb, .ndiv_frac = 0,        },
+};
+
+#define SSB_PMU1_DEFAULT_XTALFREQ	15360
+
+static const struct pmu1_plltab_entry * pmu1_plltab_find_entry(u32 crystalfreq)
+{
+	const struct pmu1_plltab_entry *e;
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(pmu1_plltab); i++) {
+		e = &pmu1_plltab[i];
+		if (e->freq == crystalfreq)
+			return e;
+	}
+
+	return NULL;
+}
+
+/* Tune the PLL to the crystal speed. crystalfreq is in kHz. */
+static void ssb_pmu1_pllinit_r0(struct ssb_chipcommon *cc,
+				u32 crystalfreq)
+{
+	struct ssb_bus *bus = cc->dev->bus;
+	const struct pmu1_plltab_entry *e = NULL;
+	u32 buffer_strength = 0;
+	u32 tmp, pllctl, pmuctl;
+	unsigned int i;
+
+	if (bus->chip_id == 0x4312) {
+		/* We do not touch the BCM4312 PLL and assume
+		 * the default crystal settings work out-of-the-box. */
+		cc->pmu.crystalfreq = 20000;
+		return;
+	}
+
+	if (crystalfreq)
+		e = pmu1_plltab_find_entry(crystalfreq);
+	if (!e)
+		e = pmu1_plltab_find_entry(SSB_PMU1_DEFAULT_XTALFREQ);
+	BUG_ON(!e);
+	crystalfreq = e->freq;
+	cc->pmu.crystalfreq = e->freq;
+
+	/* Check if the PLL already is programmed to this frequency. */
+	pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
+	if (((pmuctl & SSB_CHIPCO_PMU_CTL_XTALFREQ) >> SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) == e->xf) {
+		/* We're already there... */
+		return;
+	}
+
+	ssb_printk(KERN_INFO PFX "Programming PLL to %u.%03u MHz\n",
+		   (crystalfreq / 1000), (crystalfreq % 1000));
+
+	/* First turn the PLL off. */
+	switch (bus->chip_id) {
+	case 0x4325:
+		chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
+			      ~((1 << SSB_PMURES_4325_BBPLL_PWRSW_PU) |
+				(1 << SSB_PMURES_4325_HT_AVAIL)));
+		chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
+			      ~((1 << SSB_PMURES_4325_BBPLL_PWRSW_PU) |
+				(1 << SSB_PMURES_4325_HT_AVAIL)));
+		/* Adjust the BBPLL to 2 on all channels later. */
+		buffer_strength = 0x222222;
+		break;
+	default:
+		SSB_WARN_ON(1);
+	}
+	for (i = 1500; i; i--) {
+		tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
+		if (!(tmp & SSB_CHIPCO_CLKCTLST_HAVEHT))
+			break;
+		udelay(10);
+	}
+	tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
+	if (tmp & SSB_CHIPCO_CLKCTLST_HAVEHT)
+		ssb_printk(KERN_EMERG PFX "Failed to turn the PLL off!\n");
+
+	/* Set p1div and p2div. */
+	pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL0);
+	pllctl &= ~(SSB_PMU1_PLLCTL0_P1DIV | SSB_PMU1_PLLCTL0_P2DIV);
+	pllctl |= ((u32)e->p1div << SSB_PMU1_PLLCTL0_P1DIV_SHIFT) & SSB_PMU1_PLLCTL0_P1DIV;
+	pllctl |= ((u32)e->p2div << SSB_PMU1_PLLCTL0_P2DIV_SHIFT) & SSB_PMU1_PLLCTL0_P2DIV;
+	ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL0, pllctl);
+
+	/* Set ndiv int and ndiv mode */
+	pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL2);
+	pllctl &= ~(SSB_PMU1_PLLCTL2_NDIVINT | SSB_PMU1_PLLCTL2_NDIVMODE);
+	pllctl |= ((u32)e->ndiv_int << SSB_PMU1_PLLCTL2_NDIVINT_SHIFT) & SSB_PMU1_PLLCTL2_NDIVINT;
+	pllctl |= (1 << SSB_PMU1_PLLCTL2_NDIVMODE_SHIFT) & SSB_PMU1_PLLCTL2_NDIVMODE;
+	ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL2, pllctl);
+
+	/* Set ndiv frac */
+	pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL3);
+	pllctl &= ~SSB_PMU1_PLLCTL3_NDIVFRAC;
+	pllctl |= ((u32)e->ndiv_frac << SSB_PMU1_PLLCTL3_NDIVFRAC_SHIFT) & SSB_PMU1_PLLCTL3_NDIVFRAC;
+	ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL3, pllctl);
+
+	/* Change the drive strength, if required. */
+	if (buffer_strength) {
+		pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL5);
+		pllctl &= ~SSB_PMU1_PLLCTL5_CLKDRV;
+		pllctl |= (buffer_strength << SSB_PMU1_PLLCTL5_CLKDRV_SHIFT) & SSB_PMU1_PLLCTL5_CLKDRV;
+		ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL5, pllctl);
+	}
+
+	/* Tune the crystalfreq and the divisor. */
+	pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
+	pmuctl &= ~(SSB_CHIPCO_PMU_CTL_ILP_DIV | SSB_CHIPCO_PMU_CTL_XTALFREQ);
+	pmuctl |= ((((u32)e->freq + 127) / 128 - 1) << SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT)
+			& SSB_CHIPCO_PMU_CTL_ILP_DIV;
+	pmuctl |= ((u32)e->xf << SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) & SSB_CHIPCO_PMU_CTL_XTALFREQ;
+	chipco_write32(cc, SSB_CHIPCO_PMU_CTL, pmuctl);
+}
+
+static void ssb_pmu_pll_init(struct ssb_chipcommon *cc)
+{
+	struct ssb_bus *bus = cc->dev->bus;
+	u32 crystalfreq = 0; /* in kHz. 0 = keep default freq. */
+
+	if (bus->bustype == SSB_BUSTYPE_SSB) {
+		/* TODO: The user may override the crystal frequency. */
+	}
+
+	switch (bus->chip_id) {
+	case 0x4312:
+	case 0x4325:
+		ssb_pmu1_pllinit_r0(cc, crystalfreq);
+		break;
+	case 0x4328:
+	case 0x5354:
+		ssb_pmu0_pllinit_r0(cc, crystalfreq);
+		break;
+	default:
+		ssb_printk(KERN_ERR PFX
+			   "ERROR: PLL init unknown for device %04X\n",
+			   bus->chip_id);
+	}
+}
+
+struct pmu_res_updown_tab_entry {
+	u8 resource;	/* The resource number */
+	u16 updown;	/* The updown value */
+};
+
+enum pmu_res_depend_tab_task {
+	PMU_RES_DEP_SET = 1,
+	PMU_RES_DEP_ADD,
+	PMU_RES_DEP_REMOVE,
+};
+
+struct pmu_res_depend_tab_entry {
+	u8 resource;	/* The resource number */
+	u8 task;	/* SET | ADD | REMOVE */
+	u32 depend;	/* The depend mask */
+};
+
+static const struct pmu_res_updown_tab_entry pmu_res_updown_tab_4328a0[] = {
+	{ .resource = SSB_PMURES_4328_EXT_SWITCHER_PWM,		.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_BB_SWITCHER_PWM,		.updown = 0x1F01, },
+	{ .resource = SSB_PMURES_4328_BB_SWITCHER_BURST,	.updown = 0x010F, },
+	{ .resource = SSB_PMURES_4328_BB_EXT_SWITCHER_BURST,	.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_ILP_REQUEST,		.updown = 0x0202, },
+	{ .resource = SSB_PMURES_4328_RADIO_SWITCHER_PWM,	.updown = 0x0F01, },
+	{ .resource = SSB_PMURES_4328_RADIO_SWITCHER_BURST,	.updown = 0x0F01, },
+	{ .resource = SSB_PMURES_4328_ROM_SWITCH,		.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_PA_REF_LDO,		.updown = 0x0F01, },
+	{ .resource = SSB_PMURES_4328_RADIO_LDO,		.updown = 0x0F01, },
+	{ .resource = SSB_PMURES_4328_AFE_LDO,			.updown = 0x0F01, },
+	{ .resource = SSB_PMURES_4328_PLL_LDO,			.updown = 0x0F01, },
+	{ .resource = SSB_PMURES_4328_BG_FILTBYP,		.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_TX_FILTBYP,		.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_RX_FILTBYP,		.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_XTAL_PU,			.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_XTAL_EN,			.updown = 0xA001, },
+	{ .resource = SSB_PMURES_4328_BB_PLL_FILTBYP,		.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_RF_PLL_FILTBYP,		.updown = 0x0101, },
+	{ .resource = SSB_PMURES_4328_BB_PLL_PU,		.updown = 0x0701, },
+};
+
+static const struct pmu_res_depend_tab_entry pmu_res_depend_tab_4328a0[] = {
+	{
+		/* Adjust ILP Request to avoid forcing EXT/BB into burst mode. */
+		.resource = SSB_PMURES_4328_ILP_REQUEST,
+		.task = PMU_RES_DEP_SET,
+		.depend = ((1 << SSB_PMURES_4328_EXT_SWITCHER_PWM) |
+			   (1 << SSB_PMURES_4328_BB_SWITCHER_PWM)),
+	},
+};
+
+static const struct pmu_res_updown_tab_entry pmu_res_updown_tab_4325a0[] = {
+	{ .resource = SSB_PMURES_4325_XTAL_PU,			.updown = 0x1501, },
+};
+
+static const struct pmu_res_depend_tab_entry pmu_res_depend_tab_4325a0[] = {
+	{
+		/* Adjust HT-Available dependencies. */
+		.resource = SSB_PMURES_4325_HT_AVAIL,
+		.task = PMU_RES_DEP_ADD,
+		.depend = ((1 << SSB_PMURES_4325_RX_PWRSW_PU) |
+			   (1 << SSB_PMURES_4325_TX_PWRSW_PU) |
+			   (1 << SSB_PMURES_4325_LOGEN_PWRSW_PU) |
+			   (1 << SSB_PMURES_4325_AFE_PWRSW_PU)),
+	},
+};
+
+static void ssb_pmu_resources_init(struct ssb_chipcommon *cc)
+{
+	struct ssb_bus *bus = cc->dev->bus;
+	u32 min_msk = 0, max_msk = 0;
+	unsigned int i;
+	const struct pmu_res_updown_tab_entry *updown_tab = NULL;
+	unsigned int updown_tab_size;
+	const struct pmu_res_depend_tab_entry *depend_tab = NULL;
+	unsigned int depend_tab_size;
+
+	switch (bus->chip_id) {
+	case 0x4312:
+		/* We keep the default settings:
+		 * min_msk = 0xCBB
+		 * max_msk = 0x7FFFF
+		 */
+		break;
+	case 0x4325:
+		/* Power OTP down later. */
+		min_msk = (1 << SSB_PMURES_4325_CBUCK_BURST) |
+			  (1 << SSB_PMURES_4325_LNLDO2_PU);
+		if (chipco_read32(cc, SSB_CHIPCO_CHIPSTAT) &
+		    SSB_CHIPCO_CHST_4325_PMUTOP_2B)
+			min_msk |= (1 << SSB_PMURES_4325_CLDO_CBUCK_BURST);
+		/* The PLL may turn on, if it decides so. */
+		max_msk = 0xFFFFF;
+		updown_tab = pmu_res_updown_tab_4325a0;
+		updown_tab_size = ARRAY_SIZE(pmu_res_updown_tab_4325a0);
+		depend_tab = pmu_res_depend_tab_4325a0;
+		depend_tab_size = ARRAY_SIZE(pmu_res_depend_tab_4325a0);
+		break;
+	case 0x4328:
+		min_msk = (1 << SSB_PMURES_4328_EXT_SWITCHER_PWM) |
+			  (1 << SSB_PMURES_4328_BB_SWITCHER_PWM) |
+			  (1 << SSB_PMURES_4328_XTAL_EN);
+		/* The PLL may turn on, if it decides so. */
+		max_msk = 0xFFFFF;
+		updown_tab = pmu_res_updown_tab_4328a0;
+		updown_tab_size = ARRAY_SIZE(pmu_res_updown_tab_4328a0);
+		depend_tab = pmu_res_depend_tab_4328a0;
+		depend_tab_size = ARRAY_SIZE(pmu_res_depend_tab_4328a0);
+		break;
+	case 0x5354:
+		/* The PLL may turn on, if it decides so. */
+		max_msk = 0xFFFFF;
+		break;
+	default:
+		ssb_printk(KERN_ERR PFX
+			   "ERROR: PMU resource config unknown for device %04X\n",
+			   bus->chip_id);
+	}
+
+	if (updown_tab) {
+		for (i = 0; i < updown_tab_size; i++) {
+			chipco_write32(cc, SSB_CHIPCO_PMU_RES_TABSEL,
+				       updown_tab[i].resource);
+			chipco_write32(cc, SSB_CHIPCO_PMU_RES_UPDNTM,
+				       updown_tab[i].updown);
+		}
+	}
+	if (depend_tab) {
+		for (i = 0; i < depend_tab_size; i++) {
+			chipco_write32(cc, SSB_CHIPCO_PMU_RES_TABSEL,
+				       depend_tab[i].resource);
+			switch (depend_tab[i].task) {
+			case PMU_RES_DEP_SET:
+				chipco_write32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
+					       depend_tab[i].depend);
+				break;
+			case PMU_RES_DEP_ADD:
+				chipco_set32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
+					     depend_tab[i].depend);
+				break;
+			case PMU_RES_DEP_REMOVE:
+				chipco_mask32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
+					      ~(depend_tab[i].depend));
+				break;
+			default:
+				SSB_WARN_ON(1);
+			}
+		}
+	}
+
+	/* Set the resource masks. */
+	if (min_msk)
+		chipco_write32(cc, SSB_CHIPCO_PMU_MINRES_MSK, min_msk);
+	if (max_msk)
+		chipco_write32(cc, SSB_CHIPCO_PMU_MAXRES_MSK, max_msk);
+}
+
+void ssb_pmu_init(struct ssb_chipcommon *cc)
+{
+	struct ssb_bus *bus = cc->dev->bus;
+	u32 pmucap;
+
+	if (!(cc->capabilities & SSB_CHIPCO_CAP_PMU))
+		return;
+
+	pmucap = chipco_read32(cc, SSB_CHIPCO_PMU_CAP);
+	cc->pmu.rev = (pmucap & SSB_CHIPCO_PMU_CAP_REVISION);
+
+	ssb_dprintk(KERN_DEBUG PFX "Found rev %u PMU (capabilities 0x%08X)\n",
+		    cc->pmu.rev, pmucap);
+
+	if (cc->pmu.rev >= 1) {
+		if ((bus->chip_id == 0x4325) && (bus->chip_rev < 2)) {
+			chipco_mask32(cc, SSB_CHIPCO_PMU_CTL,
+				      ~SSB_CHIPCO_PMU_CTL_NOILPONW);
+		} else {
+			chipco_set32(cc, SSB_CHIPCO_PMU_CTL,
+				     SSB_CHIPCO_PMU_CTL_NOILPONW);
+		}
+	}
+	ssb_pmu_pll_init(cc);
+	ssb_pmu_resources_init(cc);
+}
diff --git a/include/linux/ssb/ssb_driver_chipcommon.h b/include/linux/ssb/ssb_driver_chipcommon.h
index 7d7e03dcf77c..d3b1d18922f2 100644
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -181,6 +181,16 @@
 #define SSB_CHIPCO_PROG_WAITCNT		0x0124
 #define SSB_CHIPCO_FLASH_CFG		0x0128
 #define SSB_CHIPCO_FLASH_WAITCNT	0x012C
+#define SSB_CHIPCO_CLKCTLST		0x01E0 /* Clock control and status (rev >= 20) */
+#define  SSB_CHIPCO_CLKCTLST_FORCEALP	0x00000001 /* Force ALP request */
+#define  SSB_CHIPCO_CLKCTLST_FORCEHT	0x00000002 /* Force HT request */
+#define  SSB_CHIPCO_CLKCTLST_FORCEILP	0x00000004 /* Force ILP request */
+#define  SSB_CHIPCO_CLKCTLST_HAVEALPREQ	0x00000008 /* ALP available request */
+#define  SSB_CHIPCO_CLKCTLST_HAVEHTREQ	0x00000010 /* HT available request */
+#define  SSB_CHIPCO_CLKCTLST_HWCROFF	0x00000020 /* Force HW clock request off */
+#define  SSB_CHIPCO_CLKCTLST_HAVEHT	0x00010000 /* HT available */
+#define  SSB_CHIPCO_CLKCTLST_HAVEALP	0x00020000 /* APL available */
+#define SSB_CHIPCO_HW_WORKAROUND	0x01E4 /* Hardware workaround (rev >= 20) */
 #define SSB_CHIPCO_UART0_DATA		0x0300
 #define SSB_CHIPCO_UART0_IMR		0x0304
 #define SSB_CHIPCO_UART0_FCR		0x0308
@@ -197,6 +207,196 @@
 #define SSB_CHIPCO_UART1_LSR		0x0414
 #define SSB_CHIPCO_UART1_MSR		0x0418
 #define SSB_CHIPCO_UART1_SCRATCH	0x041C
+/* PMU registers (rev >= 20) */
+#define SSB_CHIPCO_PMU_CTL			0x0600 /* PMU control */
+#define  SSB_CHIPCO_PMU_CTL_ILP_DIV		0xFFFF0000 /* ILP div mask */
+#define  SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT	16
+#define  SSB_CHIPCO_PMU_CTL_NOILPONW		0x00000200 /* No ILP on wait */
+#define  SSB_CHIPCO_PMU_CTL_HTREQEN		0x00000100 /* HT req enable */
+#define  SSB_CHIPCO_PMU_CTL_ALPREQEN		0x00000080 /* ALP req enable */
+#define  SSB_CHIPCO_PMU_CTL_XTALFREQ		0x0000007C /* Crystal freq */
+#define  SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT	2
+#define  SSB_CHIPCO_PMU_CTL_ILPDIVEN		0x00000002 /* ILP div enable */
+#define  SSB_CHIPCO_PMU_CTL_LPOSEL		0x00000001 /* LPO sel */
+#define SSB_CHIPCO_PMU_CAP			0x0604 /* PMU capabilities */
+#define  SSB_CHIPCO_PMU_CAP_REVISION		0x000000FF /* Revision mask */
+#define SSB_CHIPCO_PMU_STAT			0x0608 /* PMU status */
+#define  SSB_CHIPCO_PMU_STAT_INTPEND		0x00000040 /* Interrupt pending */
+#define  SSB_CHIPCO_PMU_STAT_SBCLKST		0x00000030 /* Backplane clock status? */
+#define  SSB_CHIPCO_PMU_STAT_HAVEALP		0x00000008 /* ALP available */
+#define  SSB_CHIPCO_PMU_STAT_HAVEHT		0x00000004 /* HT available */
+#define  SSB_CHIPCO_PMU_STAT_RESINIT		0x00000003 /* Res init */
+#define SSB_CHIPCO_PMU_RES_STAT			0x060C /* PMU res status */
+#define SSB_CHIPCO_PMU_RES_PEND			0x0610 /* PMU res pending */
+#define SSB_CHIPCO_PMU_TIMER			0x0614 /* PMU timer */
+#define SSB_CHIPCO_PMU_MINRES_MSK		0x0618 /* PMU min res mask */
+#define SSB_CHIPCO_PMU_MAXRES_MSK		0x061C /* PMU max res mask */
+#define SSB_CHIPCO_PMU_RES_TABSEL		0x0620 /* PMU res table sel */
+#define SSB_CHIPCO_PMU_RES_DEPMSK		0x0624 /* PMU res dep mask */
+#define SSB_CHIPCO_PMU_RES_UPDNTM		0x0628 /* PMU res updown timer */
+#define SSB_CHIPCO_PMU_RES_TIMER		0x062C /* PMU res timer */
+#define SSB_CHIPCO_PMU_CLKSTRETCH		0x0630 /* PMU clockstretch */
+#define SSB_CHIPCO_PMU_WATCHDOG			0x0634 /* PMU watchdog */
+#define SSB_CHIPCO_PMU_RES_REQTS		0x0640 /* PMU res req timer sel */
+#define SSB_CHIPCO_PMU_RES_REQT			0x0644 /* PMU res req timer */
+#define SSB_CHIPCO_PMU_RES_REQM			0x0648 /* PMU res req mask */
+#define SSB_CHIPCO_CHIPCTL_ADDR			0x0650
+#define SSB_CHIPCO_CHIPCTL_DATA			0x0654
+#define SSB_CHIPCO_REGCTL_ADDR			0x0658
+#define SSB_CHIPCO_REGCTL_DATA			0x065C
+#define SSB_CHIPCO_PLLCTL_ADDR			0x0660
+#define SSB_CHIPCO_PLLCTL_DATA			0x0664
+
+
+
+/** PMU PLL registers */
+
+/* PMU rev 0 PLL registers */
+#define SSB_PMU0_PLLCTL0			0
+#define  SSB_PMU0_PLLCTL0_PDIV_MSK		0x00000001
+#define  SSB_PMU0_PLLCTL0_PDIV_FREQ		25000 /* kHz */
+#define SSB_PMU0_PLLCTL1			1
+#define  SSB_PMU0_PLLCTL1_WILD_IMSK		0xF0000000 /* Wild int mask (low nibble) */
+#define  SSB_PMU0_PLLCTL1_WILD_IMSK_SHIFT	28
+#define  SSB_PMU0_PLLCTL1_WILD_FMSK		0x0FFFFF00 /* Wild frac mask */
+#define  SSB_PMU0_PLLCTL1_WILD_FMSK_SHIFT	8
+#define  SSB_PMU0_PLLCTL1_STOPMOD		0x00000040 /* Stop mod */
+#define SSB_PMU0_PLLCTL2			2
+#define  SSB_PMU0_PLLCTL2_WILD_IMSKHI		0x0000000F /* Wild int mask (high nibble) */
+#define  SSB_PMU0_PLLCTL2_WILD_IMSKHI_SHIFT	0
+
+/* PMU rev 1 PLL registers */
+#define SSB_PMU1_PLLCTL0			0
+#define  SSB_PMU1_PLLCTL0_P1DIV			0x00F00000 /* P1 div */
+#define  SSB_PMU1_PLLCTL0_P1DIV_SHIFT		20
+#define  SSB_PMU1_PLLCTL0_P2DIV			0x0F000000 /* P2 div */
+#define  SSB_PMU1_PLLCTL0_P2DIV_SHIFT		24
+#define SSB_PMU1_PLLCTL1			1
+#define  SSB_PMU1_PLLCTL1_M1DIV			0x000000FF /* M1 div */
+#define  SSB_PMU1_PLLCTL1_M1DIV_SHIFT		0
+#define  SSB_PMU1_PLLCTL1_M2DIV			0x0000FF00 /* M2 div */
+#define  SSB_PMU1_PLLCTL1_M2DIV_SHIFT		8
+#define  SSB_PMU1_PLLCTL1_M3DIV			0x00FF0000 /* M3 div */
+#define  SSB_PMU1_PLLCTL1_M3DIV_SHIFT		16
+#define  SSB_PMU1_PLLCTL1_M4DIV			0xFF000000 /* M4 div */
+#define  SSB_PMU1_PLLCTL1_M4DIV_SHIFT		24
+#define SSB_PMU1_PLLCTL2			2
+#define  SSB_PMU1_PLLCTL2_M5DIV			0x000000FF /* M5 div */
+#define  SSB_PMU1_PLLCTL2_M5DIV_SHIFT		0
+#define  SSB_PMU1_PLLCTL2_M6DIV			0x0000FF00 /* M6 div */
+#define  SSB_PMU1_PLLCTL2_M6DIV_SHIFT		8
+#define  SSB_PMU1_PLLCTL2_NDIVMODE		0x000E0000 /* NDIV mode */
+#define  SSB_PMU1_PLLCTL2_NDIVMODE_SHIFT	17
+#define  SSB_PMU1_PLLCTL2_NDIVINT		0x1FF00000 /* NDIV int */
+#define  SSB_PMU1_PLLCTL2_NDIVINT_SHIFT		20
+#define SSB_PMU1_PLLCTL3			3
+#define  SSB_PMU1_PLLCTL3_NDIVFRAC		0x00FFFFFF /* NDIV frac */
+#define  SSB_PMU1_PLLCTL3_NDIVFRAC_SHIFT	0
+#define SSB_PMU1_PLLCTL4			4
+#define SSB_PMU1_PLLCTL5			5
+#define  SSB_PMU1_PLLCTL5_CLKDRV		0xFFFFFF00 /* clk drv */
+#define  SSB_PMU1_PLLCTL5_CLKDRV_SHIFT		8
+
+/* BCM4312 PLL resource numbers. */
+#define SSB_PMURES_4312_SWITCHER_BURST		0
+#define SSB_PMURES_4312_SWITCHER_PWM    	1
+#define SSB_PMURES_4312_PA_REF_LDO		2
+#define SSB_PMURES_4312_CORE_LDO_BURST		3
+#define SSB_PMURES_4312_CORE_LDO_PWM		4
+#define SSB_PMURES_4312_RADIO_LDO		5
+#define SSB_PMURES_4312_ILP_REQUEST		6
+#define SSB_PMURES_4312_BG_FILTBYP		7
+#define SSB_PMURES_4312_TX_FILTBYP		8
+#define SSB_PMURES_4312_RX_FILTBYP		9
+#define SSB_PMURES_4312_XTAL_PU			10
+#define SSB_PMURES_4312_ALP_AVAIL		11
+#define SSB_PMURES_4312_BB_PLL_FILTBYP		12
+#define SSB_PMURES_4312_RF_PLL_FILTBYP		13
+#define SSB_PMURES_4312_HT_AVAIL		14
+
+/* BCM4325 PLL resource numbers. */
+#define SSB_PMURES_4325_BUCK_BOOST_BURST	0
+#define SSB_PMURES_4325_CBUCK_BURST		1
+#define SSB_PMURES_4325_CBUCK_PWM		2
+#define SSB_PMURES_4325_CLDO_CBUCK_BURST	3
+#define SSB_PMURES_4325_CLDO_CBUCK_PWM		4
+#define SSB_PMURES_4325_BUCK_BOOST_PWM		5
+#define SSB_PMURES_4325_ILP_REQUEST		6
+#define SSB_PMURES_4325_ABUCK_BURST		7
+#define SSB_PMURES_4325_ABUCK_PWM		8
+#define SSB_PMURES_4325_LNLDO1_PU		9
+#define SSB_PMURES_4325_LNLDO2_PU		10
+#define SSB_PMURES_4325_LNLDO3_PU		11
+#define SSB_PMURES_4325_LNLDO4_PU		12
+#define SSB_PMURES_4325_XTAL_PU			13
+#define SSB_PMURES_4325_ALP_AVAIL		14
+#define SSB_PMURES_4325_RX_PWRSW_PU		15
+#define SSB_PMURES_4325_TX_PWRSW_PU		16
+#define SSB_PMURES_4325_RFPLL_PWRSW_PU		17
+#define SSB_PMURES_4325_LOGEN_PWRSW_PU		18
+#define SSB_PMURES_4325_AFE_PWRSW_PU		19
+#define SSB_PMURES_4325_BBPLL_PWRSW_PU		20
+#define SSB_PMURES_4325_HT_AVAIL		21
+
+/* BCM4328 PLL resource numbers. */
+#define SSB_PMURES_4328_EXT_SWITCHER_PWM	0
+#define SSB_PMURES_4328_BB_SWITCHER_PWM		1
+#define SSB_PMURES_4328_BB_SWITCHER_BURST	2
+#define SSB_PMURES_4328_BB_EXT_SWITCHER_BURST	3
+#define SSB_PMURES_4328_ILP_REQUEST		4
+#define SSB_PMURES_4328_RADIO_SWITCHER_PWM	5
+#define SSB_PMURES_4328_RADIO_SWITCHER_BURST	6
+#define SSB_PMURES_4328_ROM_SWITCH		7
+#define SSB_PMURES_4328_PA_REF_LDO		8
+#define SSB_PMURES_4328_RADIO_LDO		9
+#define SSB_PMURES_4328_AFE_LDO			10
+#define SSB_PMURES_4328_PLL_LDO			11
+#define SSB_PMURES_4328_BG_FILTBYP		12
+#define SSB_PMURES_4328_TX_FILTBYP		13
+#define SSB_PMURES_4328_RX_FILTBYP		14
+#define SSB_PMURES_4328_XTAL_PU			15
+#define SSB_PMURES_4328_XTAL_EN			16
+#define SSB_PMURES_4328_BB_PLL_FILTBYP		17
+#define SSB_PMURES_4328_RF_PLL_FILTBYP		18
+#define SSB_PMURES_4328_BB_PLL_PU		19
+
+/* BCM5354 PLL resource numbers. */
+#define SSB_PMURES_5354_EXT_SWITCHER_PWM	0
+#define SSB_PMURES_5354_BB_SWITCHER_PWM		1
+#define SSB_PMURES_5354_BB_SWITCHER_BURST	2
+#define SSB_PMURES_5354_BB_EXT_SWITCHER_BURST	3
+#define SSB_PMURES_5354_ILP_REQUEST		4
+#define SSB_PMURES_5354_RADIO_SWITCHER_PWM	5
+#define SSB_PMURES_5354_RADIO_SWITCHER_BURST	6
+#define SSB_PMURES_5354_ROM_SWITCH		7
+#define SSB_PMURES_5354_PA_REF_LDO		8
+#define SSB_PMURES_5354_RADIO_LDO		9
+#define SSB_PMURES_5354_AFE_LDO			10
+#define SSB_PMURES_5354_PLL_LDO			11
+#define SSB_PMURES_5354_BG_FILTBYP		12
+#define SSB_PMURES_5354_TX_FILTBYP		13
+#define SSB_PMURES_5354_RX_FILTBYP		14
+#define SSB_PMURES_5354_XTAL_PU			15
+#define SSB_PMURES_5354_XTAL_EN			16
+#define SSB_PMURES_5354_BB_PLL_FILTBYP		17
+#define SSB_PMURES_5354_RF_PLL_FILTBYP		18
+#define SSB_PMURES_5354_BB_PLL_PU		19
+
+
+
+/** Chip specific Chip-Status register contents. */
+#define SSB_CHIPCO_CHST_4325_SPROM_OTP_SEL	0x00000003
+#define SSB_CHIPCO_CHST_4325_DEFCIS_SEL		0 /* OTP is powered up, use def. CIS, no SPROM */
+#define SSB_CHIPCO_CHST_4325_SPROM_SEL		1 /* OTP is powered up, SPROM is present */
+#define SSB_CHIPCO_CHST_4325_OTP_SEL		2 /* OTP is powered up, no SPROM */
+#define SSB_CHIPCO_CHST_4325_OTP_PWRDN		3 /* OTP is powered down, SPROM is present */
+#define SSB_CHIPCO_CHST_4325_SDIO_USB_MODE	0x00000004
+#define SSB_CHIPCO_CHST_4325_SDIO_USB_MODE_SHIFT  2
+#define SSB_CHIPCO_CHST_4325_RCAL_VALID		0x00000008
+#define SSB_CHIPCO_CHST_4325_RCAL_VALID_SHIFT	3
+#define SSB_CHIPCO_CHST_4325_RCAL_VALUE		0x000001F0
+#define SSB_CHIPCO_CHST_4325_RCAL_VALUE_SHIFT	4
+#define SSB_CHIPCO_CHST_4325_PMUTOP_2B 		0x00000200 /* 1 for 2b, 0 for to 2a */
 
 
 
@@ -353,11 +553,20 @@
 struct ssb_device;
 struct ssb_serial_port;
 
+/* Data for the PMU, if available.
+ * Check availability with ((struct ssb_chipcommon)->capabilities & SSB_CHIPCO_CAP_PMU)
+ */
+struct ssb_chipcommon_pmu {
+	u8 rev;			/* PMU revision */
+	u32 crystalfreq;	/* The active crystal frequency (in kHz) */
+};
+
 struct ssb_chipcommon {
 	struct ssb_device *dev;
 	u32 capabilities;
 	/* Fast Powerup Delay constant */
 	u16 fast_pwrup_delay;
+	struct ssb_chipcommon_pmu pmu;
 };
 
 static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
@@ -365,6 +574,17 @@ static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
 	return (cc->dev != NULL);
 }
 
+/* Register access */
+#define chipco_read32(cc, offset)	ssb_read32((cc)->dev, offset)
+#define chipco_write32(cc, offset, val)	ssb_write32((cc)->dev, offset, val)
+
+#define chipco_mask32(cc, offset, mask) \
+		chipco_write32(cc, offset, chipco_read32(cc, offset) & (mask))
+#define chipco_set32(cc, offset, set) \
+		chipco_write32(cc, offset, chipco_read32(cc, offset) | (set))
+#define chipco_maskset32(cc, offset, mask, set) \
+		chipco_write32(cc, offset, (chipco_read32(cc, offset) & (mask)) | (set))
+
 extern void ssb_chipcommon_init(struct ssb_chipcommon *cc);
 
 extern void ssb_chipco_suspend(struct ssb_chipcommon *cc);
@@ -406,4 +626,8 @@ extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
 				  struct ssb_serial_port *ports);
 #endif /* CONFIG_SSB_SERIAL */
 
+/* PMU support */
+extern void ssb_pmu_init(struct ssb_chipcommon *cc);
+
+
 #endif /* LINUX_SSB_CHIPCO_H_ */
-- 
cgit v1.2.3


From d54e6d872767ae6512978f86a35d623a8ed948c5 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 9 Feb 2009 23:45:29 -0800
Subject: net: Kill skbuff macros from the stone ages.

This kills of HAVE_ALLOC_SKB and HAVE_ALIGNABLE_SKB.

Nothing in-tree uses them and nothing in-tree has used them
since 2.0.x times.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5eba4007e07f..924700844580 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -29,9 +29,6 @@
 #include <linux/dmaengine.h>
 #include <linux/hrtimer.h>
 
-#define HAVE_ALLOC_SKB		/* For the drivers to know */
-#define HAVE_ALIGNABLE_SKB	/* Ditto 8)		   */
-
 /* Don't change this without changing skb_csum_unnecessary! */
 #define CHECKSUM_NONE 0
 #define CHECKSUM_UNNECESSARY 1
-- 
cgit v1.2.3


From 0d4ff4df341208b1b75e01feca27301c0dcbf490 Mon Sep 17 00:00:00 2001
From: Jaya Kumar <jayakumar.lkml@gmail.com>
Date: Thu, 1 Jan 2009 17:49:19 +0100
Subject: [ARM] 5353/1: fbdev: add E-Ink Broadsheet controller support v3

This patch adds support for the E-Ink Broadsheet display controller.

Cc: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/video/Kconfig        |  14 ++
 drivers/video/Makefile       |   1 +
 drivers/video/broadsheetfb.c | 568 +++++++++++++++++++++++++++++++++++++++++++
 include/video/broadsheetfb.h |  59 +++++
 4 files changed, 642 insertions(+)
 create mode 100644 drivers/video/broadsheetfb.c
 create mode 100644 include/video/broadsheetfb.h

(limited to 'include')

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index f0267706cb45..5aa099bc7690 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2135,6 +2135,20 @@ config FB_MX3
          far only synchronous displays are supported. If you plan to use
          an LCD display with your i.MX31 system, say Y here.
 
+config FB_BROADSHEET
+	tristate "E-Ink Broadsheet/Epson S1D13521 controller support"
+	depends on FB
+	select FB_SYS_FILLRECT
+	select FB_SYS_COPYAREA
+	select FB_SYS_IMAGEBLIT
+	select FB_SYS_FOPS
+	select FB_DEFERRED_IO
+	help
+	  This driver implements support for the E-Ink Broadsheet
+	  controller. The release name for this device was Epson S1D13521
+	  and could also have been called by other names when coupled with
+	  a bridge adapter.
+
 source "drivers/video/omap/Kconfig"
 
 source "drivers/video/backlight/Kconfig"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 2a998ca6181d..edd5a85c1eb5 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -106,6 +106,7 @@ obj-$(CONFIG_FB_PMAG_BA)	  += pmag-ba-fb.o
 obj-$(CONFIG_FB_PMAGB_B)	  += pmagb-b-fb.o
 obj-$(CONFIG_FB_MAXINE)		  += maxinefb.o
 obj-$(CONFIG_FB_METRONOME)        += metronomefb.o
+obj-$(CONFIG_FB_BROADSHEET)       += broadsheetfb.o
 obj-$(CONFIG_FB_S1D13XXX)	  += s1d13xxxfb.o
 obj-$(CONFIG_FB_SH7760)		  += sh7760fb.o
 obj-$(CONFIG_FB_IMX)              += imxfb.o
diff --git a/drivers/video/broadsheetfb.c b/drivers/video/broadsheetfb.c
new file mode 100644
index 000000000000..509cb92e8731
--- /dev/null
+++ b/drivers/video/broadsheetfb.c
@@ -0,0 +1,568 @@
+/*
+ * broadsheetfb.c -- FB driver for E-Ink Broadsheet controller
+ *
+ * Copyright (C) 2008, Jaya Kumar
+ *
+ * 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.
+ *
+ * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
+ *
+ * This driver is written to be used with the Broadsheet display controller.
+ *
+ * It is intended to be architecture independent. A board specific driver
+ * must be used to perform all the physical IO interactions.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/uaccess.h>
+
+#include <video/broadsheetfb.h>
+
+/* Display specific information */
+#define DPY_W 800
+#define DPY_H 600
+
+static struct fb_fix_screeninfo broadsheetfb_fix __devinitdata = {
+	.id =		"broadsheetfb",
+	.type =		FB_TYPE_PACKED_PIXELS,
+	.visual =	FB_VISUAL_STATIC_PSEUDOCOLOR,
+	.xpanstep =	0,
+	.ypanstep =	0,
+	.ywrapstep =	0,
+	.line_length =	DPY_W,
+	.accel =	FB_ACCEL_NONE,
+};
+
+static struct fb_var_screeninfo broadsheetfb_var __devinitdata = {
+	.xres		= DPY_W,
+	.yres		= DPY_H,
+	.xres_virtual	= DPY_W,
+	.yres_virtual	= DPY_H,
+	.bits_per_pixel	= 8,
+	.grayscale	= 1,
+	.red =		{ 0, 4, 0 },
+	.green =	{ 0, 4, 0 },
+	.blue =		{ 0, 4, 0 },
+	.transp =	{ 0, 0, 0 },
+};
+
+/* main broadsheetfb functions */
+static void broadsheet_issue_data(struct broadsheetfb_par *par, u16 data)
+{
+	par->board->set_ctl(par, BS_WR, 0);
+	par->board->set_hdb(par, data);
+	par->board->set_ctl(par, BS_WR, 1);
+}
+
+static void broadsheet_issue_cmd(struct broadsheetfb_par *par, u16 data)
+{
+	par->board->set_ctl(par, BS_DC, 0);
+	broadsheet_issue_data(par, data);
+}
+
+static void broadsheet_send_command(struct broadsheetfb_par *par, u16 data)
+{
+	par->board->wait_for_rdy(par);
+
+	par->board->set_ctl(par, BS_CS, 0);
+	broadsheet_issue_cmd(par, data);
+	par->board->set_ctl(par, BS_DC, 1);
+	par->board->set_ctl(par, BS_CS, 1);
+}
+
+static void broadsheet_send_cmdargs(struct broadsheetfb_par *par, u16 cmd,
+					int argc, u16 *argv)
+{
+	int i;
+
+	par->board->wait_for_rdy(par);
+
+	par->board->set_ctl(par, BS_CS, 0);
+	broadsheet_issue_cmd(par, cmd);
+	par->board->set_ctl(par, BS_DC, 1);
+
+	for (i = 0; i < argc; i++)
+		broadsheet_issue_data(par, argv[i]);
+	par->board->set_ctl(par, BS_CS, 1);
+}
+
+static void broadsheet_burst_write(struct broadsheetfb_par *par, int size,
+					u16 *data)
+{
+	int i;
+	u16 tmp;
+
+	par->board->set_ctl(par, BS_CS, 0);
+	par->board->set_ctl(par, BS_DC, 1);
+
+	for (i = 0; i < size; i++) {
+		par->board->set_ctl(par, BS_WR, 0);
+		tmp = (data[i] & 0x0F) << 4;
+		tmp |= (data[i] & 0x0F00) << 4;
+		par->board->set_hdb(par, tmp);
+		par->board->set_ctl(par, BS_WR, 1);
+	}
+
+	par->board->set_ctl(par, BS_CS, 1);
+}
+
+static u16 broadsheet_get_data(struct broadsheetfb_par *par)
+{
+	u16 res;
+	/* wait for ready to go hi. (lo is busy) */
+	par->board->wait_for_rdy(par);
+
+	/* cs lo, dc lo for cmd, we lo for each data, db as usual */
+	par->board->set_ctl(par, BS_DC, 1);
+	par->board->set_ctl(par, BS_CS, 0);
+	par->board->set_ctl(par, BS_WR, 0);
+
+	res = par->board->get_hdb(par);
+
+	/* strobe wr */
+	par->board->set_ctl(par, BS_WR, 1);
+	par->board->set_ctl(par, BS_CS, 1);
+
+	return res;
+}
+
+static void broadsheet_write_reg(struct broadsheetfb_par *par, u16 reg,
+					u16 data)
+{
+	/* wait for ready to go hi. (lo is busy) */
+	par->board->wait_for_rdy(par);
+
+	/* cs lo, dc lo for cmd, we lo for each data, db as usual */
+	par->board->set_ctl(par, BS_CS, 0);
+
+	broadsheet_issue_cmd(par, BS_CMD_WR_REG);
+
+	par->board->set_ctl(par, BS_DC, 1);
+
+	broadsheet_issue_data(par, reg);
+	broadsheet_issue_data(par, data);
+
+	par->board->set_ctl(par, BS_CS, 1);
+}
+
+static u16 broadsheet_read_reg(struct broadsheetfb_par *par, u16 reg)
+{
+	broadsheet_send_command(par, reg);
+	msleep(100);
+	return broadsheet_get_data(par);
+}
+
+static void __devinit broadsheet_init_display(struct broadsheetfb_par *par)
+{
+	u16 args[5];
+
+	args[0] = DPY_W;
+	args[1] = DPY_H;
+	args[2] = (100 | (1 << 8) | (1 << 9)); /* sdcfg */
+	args[3] = 2; /* gdrv cfg */
+	args[4] = (4 | (1 << 7)); /* lut index format */
+	broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_CFG, 5, args);
+
+	/* did the controller really set it? */
+	broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_CFG, 5, args);
+
+	args[0] = 4; /* fsync len */
+	args[1] = (10 << 8) | 4; /* fend/fbegin len */
+	args[2] = 10; /* line sync len */
+	args[3] = (100 << 8) | 4; /* line end/begin len */
+	args[4] = 6; /* pixel clock cfg */
+	broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_TMG, 5, args);
+
+	/* setup waveform */
+	args[0] = 0x886;
+	args[1] = 0;
+	broadsheet_send_cmdargs(par, BS_CMD_RD_WFM_INFO, 2, args);
+
+	broadsheet_send_command(par, BS_CMD_UPD_GDRV_CLR);
+
+	broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+	broadsheet_write_reg(par, 0x330, 0x84);
+
+	broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+	args[0] = (0x3 << 4);
+	broadsheet_send_cmdargs(par, BS_CMD_LD_IMG, 1, args);
+
+	args[0] = 0x154;
+	broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args);
+
+	broadsheet_burst_write(par, DPY_W*DPY_H/2,
+				(u16 *) par->info->screen_base);
+
+	broadsheet_send_command(par, BS_CMD_LD_IMG_END);
+
+	args[0] = 0x4300;
+	broadsheet_send_cmdargs(par, BS_CMD_UPD_FULL, 1, args);
+
+	broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+	broadsheet_send_command(par, BS_CMD_WAIT_DSPE_FREND);
+
+	par->board->wait_for_rdy(par);
+}
+
+static void __devinit broadsheet_init(struct broadsheetfb_par *par)
+{
+	broadsheet_send_command(par, BS_CMD_INIT_SYS_RUN);
+	/* the controller needs a second */
+	msleep(1000);
+	broadsheet_init_display(par);
+}
+
+static void broadsheetfb_dpy_update_pages(struct broadsheetfb_par *par,
+						u16 y1, u16 y2)
+{
+	u16 args[5];
+	unsigned char *buf = (unsigned char *)par->info->screen_base;
+
+	/* y1 must be a multiple of 4 so drop the lower bits */
+	y1 &= 0xFFFC;
+	/* y2 must be a multiple of 4 , but - 1 so up the lower bits */
+	y2 |= 0x0003;
+
+	args[0] = 0x3 << 4;
+	args[1] = 0;
+	args[2] = y1;
+	args[3] = cpu_to_le16(par->info->var.xres);
+	args[4] = y2;
+	broadsheet_send_cmdargs(par, BS_CMD_LD_IMG_AREA, 5, args);
+
+	args[0] = 0x154;
+	broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args);
+
+	buf += y1 * par->info->var.xres;
+	broadsheet_burst_write(par, ((1 + y2 - y1) * par->info->var.xres)/2,
+				(u16 *) buf);
+
+	broadsheet_send_command(par, BS_CMD_LD_IMG_END);
+
+	args[0] = 0x4300;
+	broadsheet_send_cmdargs(par, BS_CMD_UPD_FULL, 1, args);
+
+	broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+	broadsheet_send_command(par, BS_CMD_WAIT_DSPE_FREND);
+
+	par->board->wait_for_rdy(par);
+
+}
+
+static void broadsheetfb_dpy_update(struct broadsheetfb_par *par)
+{
+	u16 args[5];
+
+	args[0] = 0x3 << 4;
+	broadsheet_send_cmdargs(par, BS_CMD_LD_IMG, 1, args);
+
+	args[0] = 0x154;
+	broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args);
+	broadsheet_burst_write(par, DPY_W*DPY_H/2,
+				(u16 *) par->info->screen_base);
+
+	broadsheet_send_command(par, BS_CMD_LD_IMG_END);
+
+	args[0] = 0x4300;
+	broadsheet_send_cmdargs(par, BS_CMD_UPD_FULL, 1, args);
+
+	broadsheet_send_command(par, BS_CMD_WAIT_DSPE_TRG);
+
+	broadsheet_send_command(par, BS_CMD_WAIT_DSPE_FREND);
+
+	par->board->wait_for_rdy(par);
+
+}
+
+/* this is called back from the deferred io workqueue */
+static void broadsheetfb_dpy_deferred_io(struct fb_info *info,
+				struct list_head *pagelist)
+{
+	u16 y1 = 0, h = 0;
+	int prev_index = -1;
+	struct page *cur;
+	struct fb_deferred_io *fbdefio = info->fbdefio;
+	int h_inc;
+	u16 yres = info->var.yres;
+	u16 xres = info->var.xres;
+
+	/* height increment is fixed per page */
+	h_inc = DIV_ROUND_UP(PAGE_SIZE , xres);
+
+	/* walk the written page list and swizzle the data */
+	list_for_each_entry(cur, &fbdefio->pagelist, lru) {
+		if (prev_index < 0) {
+			/* just starting so assign first page */
+			y1 = (cur->index << PAGE_SHIFT) / xres;
+			h = h_inc;
+		} else if ((prev_index + 1) == cur->index) {
+			/* this page is consecutive so increase our height */
+			h += h_inc;
+		} else {
+			/* page not consecutive, issue previous update first */
+			broadsheetfb_dpy_update_pages(info->par, y1, y1 + h);
+			/* start over with our non consecutive page */
+			y1 = (cur->index << PAGE_SHIFT) / xres;
+			h = h_inc;
+		}
+		prev_index = cur->index;
+	}
+
+	/* if we still have any pages to update we do so now */
+	if (h >= yres) {
+		/* its a full screen update, just do it */
+		broadsheetfb_dpy_update(info->par);
+	} else {
+		broadsheetfb_dpy_update_pages(info->par, y1,
+						min((u16) (y1 + h), yres));
+	}
+}
+
+static void broadsheetfb_fillrect(struct fb_info *info,
+				   const struct fb_fillrect *rect)
+{
+	struct broadsheetfb_par *par = info->par;
+
+	sys_fillrect(info, rect);
+
+	broadsheetfb_dpy_update(par);
+}
+
+static void broadsheetfb_copyarea(struct fb_info *info,
+				   const struct fb_copyarea *area)
+{
+	struct broadsheetfb_par *par = info->par;
+
+	sys_copyarea(info, area);
+
+	broadsheetfb_dpy_update(par);
+}
+
+static void broadsheetfb_imageblit(struct fb_info *info,
+				const struct fb_image *image)
+{
+	struct broadsheetfb_par *par = info->par;
+
+	sys_imageblit(info, image);
+
+	broadsheetfb_dpy_update(par);
+}
+
+/*
+ * this is the slow path from userspace. they can seek and write to
+ * the fb. it's inefficient to do anything less than a full screen draw
+ */
+static ssize_t broadsheetfb_write(struct fb_info *info, const char __user *buf,
+				size_t count, loff_t *ppos)
+{
+	struct broadsheetfb_par *par = info->par;
+	unsigned long p = *ppos;
+	void *dst;
+	int err = 0;
+	unsigned long total_size;
+
+	if (info->state != FBINFO_STATE_RUNNING)
+		return -EPERM;
+
+	total_size = info->fix.smem_len;
+
+	if (p > total_size)
+		return -EFBIG;
+
+	if (count > total_size) {
+		err = -EFBIG;
+		count = total_size;
+	}
+
+	if (count + p > total_size) {
+		if (!err)
+			err = -ENOSPC;
+
+		count = total_size - p;
+	}
+
+	dst = (void *)(info->screen_base + p);
+
+	if (copy_from_user(dst, buf, count))
+		err = -EFAULT;
+
+	if  (!err)
+		*ppos += count;
+
+	broadsheetfb_dpy_update(par);
+
+	return (err) ? err : count;
+}
+
+static struct fb_ops broadsheetfb_ops = {
+	.owner		= THIS_MODULE,
+	.fb_read        = fb_sys_read,
+	.fb_write	= broadsheetfb_write,
+	.fb_fillrect	= broadsheetfb_fillrect,
+	.fb_copyarea	= broadsheetfb_copyarea,
+	.fb_imageblit	= broadsheetfb_imageblit,
+};
+
+static struct fb_deferred_io broadsheetfb_defio = {
+	.delay		= HZ/4,
+	.deferred_io	= broadsheetfb_dpy_deferred_io,
+};
+
+static int __devinit broadsheetfb_probe(struct platform_device *dev)
+{
+	struct fb_info *info;
+	struct broadsheet_board *board;
+	int retval = -ENOMEM;
+	int videomemorysize;
+	unsigned char *videomemory;
+	struct broadsheetfb_par *par;
+	int i;
+
+	/* pick up board specific routines */
+	board = dev->dev.platform_data;
+	if (!board)
+		return -EINVAL;
+
+	/* try to count device specific driver, if can't, platform recalls */
+	if (!try_module_get(board->owner))
+		return -ENODEV;
+
+	info = framebuffer_alloc(sizeof(struct broadsheetfb_par), &dev->dev);
+	if (!info)
+		goto err;
+
+	videomemorysize = (DPY_W*DPY_H);
+	videomemory = vmalloc(videomemorysize);
+	if (!videomemory)
+		goto err_fb_rel;
+
+	memset(videomemory, 0, videomemorysize);
+
+	info->screen_base = (char *)videomemory;
+	info->fbops = &broadsheetfb_ops;
+
+	info->var = broadsheetfb_var;
+	info->fix = broadsheetfb_fix;
+	info->fix.smem_len = videomemorysize;
+	par = info->par;
+	par->info = info;
+	par->board = board;
+	par->write_reg = broadsheet_write_reg;
+	par->read_reg = broadsheet_read_reg;
+	init_waitqueue_head(&par->waitq);
+
+	info->flags = FBINFO_FLAG_DEFAULT;
+
+	info->fbdefio = &broadsheetfb_defio;
+	fb_deferred_io_init(info);
+
+	retval = fb_alloc_cmap(&info->cmap, 16, 0);
+	if (retval < 0) {
+		dev_err(&dev->dev, "Failed to allocate colormap\n");
+		goto err_vfree;
+	}
+
+	/* set cmap */
+	for (i = 0; i < 16; i++)
+		info->cmap.red[i] = (((2*i)+1)*(0xFFFF))/32;
+	memcpy(info->cmap.green, info->cmap.red, sizeof(u16)*16);
+	memcpy(info->cmap.blue, info->cmap.red, sizeof(u16)*16);
+
+	retval = par->board->setup_irq(info);
+	if (retval < 0)
+		goto err_cmap;
+
+	/* this inits the dpy */
+	retval = board->init(par);
+	if (retval < 0)
+		goto err_free_irq;
+
+	broadsheet_init(par);
+
+	retval = register_framebuffer(info);
+	if (retval < 0)
+		goto err_free_irq;
+	platform_set_drvdata(dev, info);
+
+	printk(KERN_INFO
+	       "fb%d: Broadsheet frame buffer, using %dK of video memory\n",
+	       info->node, videomemorysize >> 10);
+
+
+	return 0;
+
+err_free_irq:
+	board->cleanup(par);
+err_cmap:
+	fb_dealloc_cmap(&info->cmap);
+err_vfree:
+	vfree(videomemory);
+err_fb_rel:
+	framebuffer_release(info);
+err:
+	module_put(board->owner);
+	return retval;
+
+}
+
+static int __devexit broadsheetfb_remove(struct platform_device *dev)
+{
+	struct fb_info *info = platform_get_drvdata(dev);
+
+	if (info) {
+		struct broadsheetfb_par *par = info->par;
+		unregister_framebuffer(info);
+		fb_deferred_io_cleanup(info);
+		par->board->cleanup(par);
+		fb_dealloc_cmap(&info->cmap);
+		vfree((void *)info->screen_base);
+		module_put(par->board->owner);
+		framebuffer_release(info);
+	}
+	return 0;
+}
+
+static struct platform_driver broadsheetfb_driver = {
+	.probe	= broadsheetfb_probe,
+	.remove = broadsheetfb_remove,
+	.driver	= {
+		.owner	= THIS_MODULE,
+		.name	= "broadsheetfb",
+	},
+};
+
+static int __init broadsheetfb_init(void)
+{
+	return platform_driver_register(&broadsheetfb_driver);
+}
+
+static void __exit broadsheetfb_exit(void)
+{
+	platform_driver_unregister(&broadsheetfb_driver);
+}
+
+module_init(broadsheetfb_init);
+module_exit(broadsheetfb_exit);
+
+MODULE_DESCRIPTION("fbdev driver for Broadsheet controller");
+MODULE_AUTHOR("Jaya Kumar");
+MODULE_LICENSE("GPL");
diff --git a/include/video/broadsheetfb.h b/include/video/broadsheetfb.h
new file mode 100644
index 000000000000..a758534c0272
--- /dev/null
+++ b/include/video/broadsheetfb.h
@@ -0,0 +1,59 @@
+/*
+ * broadsheetfb.h - definitions for the broadsheet framebuffer driver
+ *
+ * Copyright (C) 2008 by Jaya Kumar
+ *
+ * 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.
+ *
+ */
+
+#ifndef _LINUX_BROADSHEETFB_H_
+#define _LINUX_BROADSHEETFB_H_
+
+/* Broadsheet command defines */
+#define BS_CMD_INIT_SYS_RUN	0x06
+#define BS_CMD_INIT_DSPE_CFG	0x09
+#define BS_CMD_INIT_DSPE_TMG	0x0A
+#define BS_CMD_INIT_ROTMODE	0x0B
+#define BS_CMD_RD_REG		0x10
+#define BS_CMD_WR_REG		0x11
+#define BS_CMD_LD_IMG		0x20
+#define BS_CMD_LD_IMG_AREA	0x22
+#define BS_CMD_LD_IMG_END	0x23
+#define BS_CMD_WAIT_DSPE_TRG	0x28
+#define BS_CMD_WAIT_DSPE_FREND	0x29
+#define BS_CMD_RD_WFM_INFO	0x30
+#define BS_CMD_UPD_INIT		0x32
+#define BS_CMD_UPD_FULL		0x33
+#define BS_CMD_UPD_GDRV_CLR	0x37
+
+/* Broadsheet pin interface specific defines */
+#define BS_CS	0x01
+#define BS_DC 	0x02
+#define BS_WR 	0x03
+
+/* struct used by broadsheet. board specific stuff comes from *board */
+struct broadsheetfb_par {
+	struct fb_info *info;
+	struct broadsheet_board *board;
+	void (*write_reg)(struct broadsheetfb_par *, u16 reg, u16 val);
+	u16 (*read_reg)(struct broadsheetfb_par *, u16 reg);
+	wait_queue_head_t waitq;
+};
+
+/* board specific routines */
+struct broadsheet_board {
+	struct module *owner;
+	int (*init)(struct broadsheetfb_par *);
+	int (*wait_for_rdy)(struct broadsheetfb_par *);
+	void (*set_ctl)(struct broadsheetfb_par *, unsigned char, u8);
+	void (*set_hdb)(struct broadsheetfb_par *, u16);
+	u16 (*get_hdb)(struct broadsheetfb_par *);
+	void (*cleanup)(struct broadsheetfb_par *);
+	int (*get_panel_type)(void);
+	int (*setup_irq)(struct fb_info *);
+};
+
+#endif
-- 
cgit v1.2.3


From ed850a52af971528b048812c4215cef298af0d3b Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Tue, 10 Feb 2009 23:01:19 -0500
Subject: integrity: shmem zero fix

Based on comments from Mike Frysinger and Randy Dunlap:
(http://lkml.org/lkml/2009/2/9/262)
- moved ima.h include before CONFIG_SHMEM test to fix compiler error
  on Blackfin:
mm/shmem.c: In function 'shmem_zero_setup':
mm/shmem.c:2670: error: implicit declaration of function 'ima_shm_check'

- added 'struct linux_binprm' in ima.h to fix compiler warning on Blackfin:
In file included from mm/shmem.c:32:
include/linux/ima.h:25: warning: 'struct linux_binprm' declared inside
parameter list
include/linux/ima.h:25: warning: its scope is only this definition or
declaration, which is probably not what you want

- moved fs.h include within _LINUX_IMA_H definition

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: James Morris <jmorris@namei.org>
---
 include/linux/ima.h | 5 +++--
 mm/shmem.c          | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/ima.h b/include/linux/ima.h
index 6db30a328d98..0e2aa45cb0ce 100644
--- a/include/linux/ima.h
+++ b/include/linux/ima.h
@@ -7,11 +7,12 @@
  * the Free Software Foundation, version 2 of the License.
  */
 
-#include <linux/fs.h>
-
 #ifndef _LINUX_IMA_H
 #define _LINUX_IMA_H
 
+#include <linux/fs.h>
+struct linux_binprm;
+
 #ifdef CONFIG_IMA
 extern int ima_bprm_check(struct linux_binprm *bprm);
 extern int ima_inode_alloc(struct inode *inode);
diff --git a/mm/shmem.c b/mm/shmem.c
index 75199888a6bd..8135fac294ee 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -28,6 +28,7 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/swap.h>
+#include <linux/ima.h>
 
 static struct vfsmount *shm_mnt;
 
@@ -59,7 +60,6 @@ static struct vfsmount *shm_mnt;
 #include <linux/highmem.h>
 #include <linux/seq_file.h>
 #include <linux/magic.h>
-#include <linux/ima.h>
 
 #include <asm/uaccess.h>
 #include <asm/div64.h>
-- 
cgit v1.2.3


From ad0b0fd554dfc126b5750d14908dccc3bbf602be Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@infradead.org>
Date: Tue, 10 Feb 2009 11:42:26 -0800
Subject: sched, latencytop: incorporate review feedback from Andrew Morton

Andrew had some suggestions for the latencytop file; this patch takes care
of most of these:

* Add documentation
* Turn account_scheduler_latency into an inline function
* Don't report negative values to userspace
* Make the file operations struct const
* Fix a few checkpatch.pl warnings

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/latencytop.h | 10 +++++-
 kernel/latencytop.c        | 83 +++++++++++++++++++++++++++++++++++++++-------
 2 files changed, 80 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/include/linux/latencytop.h b/include/linux/latencytop.h
index 901c2d6377a8..b0e99898527c 100644
--- a/include/linux/latencytop.h
+++ b/include/linux/latencytop.h
@@ -9,6 +9,7 @@
 #ifndef _INCLUDE_GUARD_LATENCYTOP_H_
 #define _INCLUDE_GUARD_LATENCYTOP_H_
 
+#include <linux/compiler.h>
 #ifdef CONFIG_LATENCYTOP
 
 #define LT_SAVECOUNT		32
@@ -24,7 +25,14 @@ struct latency_record {
 
 struct task_struct;
 
-void account_scheduler_latency(struct task_struct *task, int usecs, int inter);
+extern int latencytop_enabled;
+void __account_scheduler_latency(struct task_struct *task, int usecs, int inter);
+static inline void
+account_scheduler_latency(struct task_struct *task, int usecs, int inter)
+{
+	if (unlikely(latencytop_enabled))
+		__account_scheduler_latency(task, usecs, inter);
+}
 
 void clear_all_latency_tracing(struct task_struct *p);
 
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index 449db466bdbc..ca07c5c0c914 100644
--- a/kernel/latencytop.c
+++ b/kernel/latencytop.c
@@ -9,6 +9,44 @@
  * as published by the Free Software Foundation; version 2
  * of the License.
  */
+
+/*
+ * CONFIG_LATENCYTOP enables a kernel latency tracking infrastructure that is
+ * used by the "latencytop" userspace tool. The latency that is tracked is not
+ * the 'traditional' interrupt latency (which is primarily caused by something
+ * else consuming CPU), but instead, it is the latency an application encounters
+ * because the kernel sleeps on its behalf for various reasons.
+ *
+ * This code tracks 2 levels of statistics:
+ * 1) System level latency
+ * 2) Per process latency
+ *
+ * The latency is stored in fixed sized data structures in an accumulated form;
+ * if the "same" latency cause is hit twice, this will be tracked as one entry
+ * in the data structure. Both the count, total accumulated latency and maximum
+ * latency are tracked in this data structure. When the fixed size structure is
+ * full, no new causes are tracked until the buffer is flushed by writing to
+ * the /proc file; the userspace tool does this on a regular basis.
+ *
+ * A latency cause is identified by a stringified backtrace at the point that
+ * the scheduler gets invoked. The userland tool will use this string to
+ * identify the cause of the latency in human readable form.
+ *
+ * The information is exported via /proc/latency_stats and /proc/<pid>/latency.
+ * These files look like this:
+ *
+ * Latency Top version : v0.1
+ * 70 59433 4897 i915_irq_wait drm_ioctl vfs_ioctl do_vfs_ioctl sys_ioctl
+ * |    |    |    |
+ * |    |    |    +----> the stringified backtrace
+ * |    |    +---------> The maximum latency for this entry in microseconds
+ * |    +--------------> The accumulated latency for this entry (microseconds)
+ * +-------------------> The number of times this entry is hit
+ *
+ * (note: the average latency is the accumulated latency divided by the number
+ * of times)
+ */
+
 #include <linux/latencytop.h>
 #include <linux/kallsyms.h>
 #include <linux/seq_file.h>
@@ -72,7 +110,7 @@ account_global_scheduler_latency(struct task_struct *tsk, struct latency_record
 				firstnonnull = i;
 			continue;
 		}
-		for (q = 0 ; q < LT_BACKTRACEDEPTH ; q++) {
+		for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
 			unsigned long record = lat->backtrace[q];
 
 			if (latency_record[i].backtrace[q] != record) {
@@ -101,31 +139,52 @@ account_global_scheduler_latency(struct task_struct *tsk, struct latency_record
 	memcpy(&latency_record[i], lat, sizeof(struct latency_record));
 }
 
-static inline void store_stacktrace(struct task_struct *tsk, struct latency_record *lat)
+/*
+ * Iterator to store a backtrace into a latency record entry
+ */
+static inline void store_stacktrace(struct task_struct *tsk,
+					struct latency_record *lat)
 {
 	struct stack_trace trace;
 
 	memset(&trace, 0, sizeof(trace));
 	trace.max_entries = LT_BACKTRACEDEPTH;
 	trace.entries = &lat->backtrace[0];
-	trace.skip = 0;
 	save_stack_trace_tsk(tsk, &trace);
 }
 
+/**
+ * __account_scheduler_latency - record an occured latency
+ * @tsk - the task struct of the task hitting the latency
+ * @usecs - the duration of the latency in microseconds
+ * @inter - 1 if the sleep was interruptible, 0 if uninterruptible
+ *
+ * This function is the main entry point for recording latency entries
+ * as called by the scheduler.
+ *
+ * This function has a few special cases to deal with normal 'non-latency'
+ * sleeps: specifically, interruptible sleep longer than 5 msec is skipped
+ * since this usually is caused by waiting for events via select() and co.
+ *
+ * Negative latencies (caused by time going backwards) are also explicitly
+ * skipped.
+ */
 void __sched
-account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
+__account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
 {
 	unsigned long flags;
 	int i, q;
 	struct latency_record lat;
 
-	if (!latencytop_enabled)
-		return;
-
 	/* Long interruptible waits are generally user requested... */
 	if (inter && usecs > 5000)
 		return;
 
+	/* Negative sleeps are time going backwards */
+	/* Zero-time sleeps are non-interesting */
+	if (usecs <= 0)
+		return;
+
 	memset(&lat, 0, sizeof(lat));
 	lat.count = 1;
 	lat.time = usecs;
@@ -143,12 +202,12 @@ account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
 	if (tsk->latency_record_count >= LT_SAVECOUNT)
 		goto out_unlock;
 
-	for (i = 0; i < LT_SAVECOUNT ; i++) {
+	for (i = 0; i < LT_SAVECOUNT; i++) {
 		struct latency_record *mylat;
 		int same = 1;
 
 		mylat = &tsk->latency_record[i];
-		for (q = 0 ; q < LT_BACKTRACEDEPTH ; q++) {
+		for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
 			unsigned long record = lat.backtrace[q];
 
 			if (mylat->backtrace[q] != record) {
@@ -186,7 +245,7 @@ static int lstats_show(struct seq_file *m, void *v)
 	for (i = 0; i < MAXLR; i++) {
 		if (latency_record[i].backtrace[0]) {
 			int q;
-			seq_printf(m, "%i %li %li ",
+			seq_printf(m, "%i %lu %lu ",
 				latency_record[i].count,
 				latency_record[i].time,
 				latency_record[i].max);
@@ -223,7 +282,7 @@ static int lstats_open(struct inode *inode, struct file *filp)
 	return single_open(filp, lstats_show, NULL);
 }
 
-static struct file_operations lstats_fops = {
+static const struct file_operations lstats_fops = {
 	.open		= lstats_open,
 	.read		= seq_read,
 	.write		= lstats_write,
@@ -236,4 +295,4 @@ static int __init init_lstats_procfs(void)
 	proc_create("latency_stats", 0644, NULL, &lstats_fops);
 	return 0;
 }
-__initcall(init_lstats_procfs);
+device_initcall(init_lstats_procfs);
-- 
cgit v1.2.3


From 523979adfa0b79d4e3aa053220c37a9233294206 Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Wed, 11 Feb 2009 11:12:28 -0500
Subject: integrity: audit update

Based on discussions on linux-audit, as per Steve Grubb's request
http://lkml.org/lkml/2009/2/6/269, the following changes were made:
- forced audit result to be either 0 or 1.
- made template names const
- Added new stand-alone message type: AUDIT_INTEGRITY_RULE

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Acked-by: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 include/linux/audit.h               |  4 +++-
 security/integrity/ima/ima.h        |  2 +-
 security/integrity/ima/ima_api.c    |  2 +-
 security/integrity/ima/ima_audit.c  | 21 ++++++++++++---------
 security/integrity/ima/ima_fs.c     |  2 +-
 security/integrity/ima/ima_init.c   |  2 +-
 security/integrity/ima/ima_policy.c | 17 +++++++++--------
 7 files changed, 28 insertions(+), 22 deletions(-)

(limited to 'include')

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 930939abfbc6..4fa2810b675e 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -36,7 +36,8 @@
  * 1500 - 1599 kernel LSPP events
  * 1600 - 1699 kernel crypto events
  * 1700 - 1799 kernel anomaly records
- * 1800 - 1999 future kernel use (maybe integrity labels and related events)
+ * 1800 - 1899 kernel integrity events
+ * 1900 - 1999 future kernel use
  * 2000 is for otherwise unclassified kernel audit messages (legacy)
  * 2001 - 2099 unused (kernel)
  * 2100 - 2199 user space anomaly records
@@ -130,6 +131,7 @@
 #define AUDIT_INTEGRITY_STATUS	    1802 /* Integrity enable status */
 #define AUDIT_INTEGRITY_HASH	    1803 /* Integrity HASH type */
 #define AUDIT_INTEGRITY_PCR	    1804 /* PCR invalidation msgs */
+#define AUDIT_INTEGRITY_RULE	    1805 /* policy rule */
 
 #define AUDIT_KERNEL		2000	/* Asynchronous audit record. NOT A REQUEST. */
 
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index e3c16a21a38e..165eb5397ea5 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -47,7 +47,7 @@ struct ima_template_data {
 
 struct ima_template_entry {
 	u8 digest[IMA_DIGEST_SIZE];	/* sha1 or md5 measurement hash */
-	char *template_name;
+	const char *template_name;
 	int template_len;
 	struct ima_template_data template;
 };
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index a148a25804f6..3cd58b60afd2 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -15,7 +15,7 @@
 #include <linux/module.h>
 
 #include "ima.h"
-static char *IMA_TEMPLATE_NAME = "ima";
+static const char *IMA_TEMPLATE_NAME = "ima";
 
 /*
  * ima_store_template - store ima template measurements
diff --git a/security/integrity/ima/ima_audit.c b/security/integrity/ima/ima_audit.c
index 8a0f1e23ccf1..1e082bb987be 100644
--- a/security/integrity/ima/ima_audit.c
+++ b/security/integrity/ima/ima_audit.c
@@ -22,16 +22,18 @@ static int ima_audit;
 static int __init ima_audit_setup(char *str)
 {
 	unsigned long audit;
-	int rc;
-	char *op;
+	int rc, result = 0;
+	char *op = "ima_audit";
+	char *cause;
 
 	rc = strict_strtoul(str, 0, &audit);
 	if (rc || audit > 1)
-		printk(KERN_INFO "ima: invalid ima_audit value\n");
+		result = 1;
 	else
 		ima_audit = audit;
-	op = ima_audit ? "ima_audit_enabled" : "ima_audit_not_enabled";
-	integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL, NULL, NULL, op, 0, 0);
+	cause = ima_audit ? "enabled" : "not_enabled";
+	integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL, NULL,
+			    op, cause, result, 0);
 	return 1;
 }
 __setup("ima_audit=", ima_audit_setup);
@@ -47,20 +49,21 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
 		return;
 
 	ab = audit_log_start(current->audit_context, GFP_KERNEL, audit_msgno);
-	audit_log_format(ab, "integrity: pid=%d uid=%u auid=%u",
+	audit_log_format(ab, "integrity: pid=%d uid=%u auid=%u ses=%u",
 			 current->pid, current->cred->uid,
-			 audit_get_loginuid(current));
+			 audit_get_loginuid(current),
+			 audit_get_sessionid(current));
 	audit_log_task_context(ab);
 	switch (audit_msgno) {
 	case AUDIT_INTEGRITY_DATA:
 	case AUDIT_INTEGRITY_METADATA:
 	case AUDIT_INTEGRITY_PCR:
+	case AUDIT_INTEGRITY_STATUS:
 		audit_log_format(ab, " op=%s cause=%s", op, cause);
 		break;
 	case AUDIT_INTEGRITY_HASH:
 		audit_log_format(ab, " op=%s hash=%s", op, cause);
 		break;
-	case AUDIT_INTEGRITY_STATUS:
 	default:
 		audit_log_format(ab, " op=%s", op);
 	}
@@ -73,6 +76,6 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
 	if (inode)
 		audit_log_format(ab, " dev=%s ino=%lu",
 				 inode->i_sb->s_id, inode->i_ino);
-	audit_log_format(ab, " res=%d", result);
+	audit_log_format(ab, " res=%d", !result ? 0 : 1);
 	audit_log_end(ab);
 }
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 573780c76f1f..ffbe259700b1 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -137,7 +137,7 @@ static int ima_measurements_show(struct seq_file *m, void *v)
 	ima_putc(m, &namelen, sizeof namelen);
 
 	/* 4th:  template name */
-	ima_putc(m, e->template_name, namelen);
+	ima_putc(m, (void *)e->template_name, namelen);
 
 	/* 5th:  template specific data */
 	ima_template_show(m, (struct ima_template_data *)&e->template,
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index cf227dbfac2c..0b0bb8c978cc 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -20,7 +20,7 @@
 #include "ima.h"
 
 /* name for boot aggregate entry */
-static char *boot_aggregate_name = "boot_aggregate";
+static const char *boot_aggregate_name = "boot_aggregate";
 int ima_used_chip;
 
 /* Add the boot aggregate to the IMA measurement list and extend
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 23810e0bfc68..b5291ad5ef56 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -12,7 +12,6 @@
  */
 #include <linux/module.h>
 #include <linux/list.h>
-#include <linux/audit.h>
 #include <linux/security.h>
 #include <linux/magic.h>
 #include <linux/parser.h>
@@ -239,8 +238,7 @@ static int ima_parse_rule(char *rule, struct ima_measure_rule_entry *entry)
 	char *p;
 	int result = 0;
 
-	ab = audit_log_start(current->audit_context, GFP_KERNEL,
-			     AUDIT_INTEGRITY_STATUS);
+	ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_INTEGRITY_RULE);
 
 	entry->action = -1;
 	while ((p = strsep(&rule, " \n")) != NULL) {
@@ -345,15 +343,14 @@ static int ima_parse_rule(char *rule, struct ima_measure_rule_entry *entry)
 						   AUDIT_SUBJ_TYPE);
 			break;
 		case Opt_err:
-			printk(KERN_INFO "%s: unknown token: %s\n",
-			       __FUNCTION__, p);
+			audit_log_format(ab, "UNKNOWN=%s ", p);
 			break;
 		}
 	}
 	if (entry->action == UNKNOWN)
 		result = -EINVAL;
 
-	audit_log_format(ab, "res=%d", result);
+	audit_log_format(ab, "res=%d", !result ? 0 : 1);
 	audit_log_end(ab);
 	return result;
 }
@@ -367,7 +364,7 @@ static int ima_parse_rule(char *rule, struct ima_measure_rule_entry *entry)
  */
 int ima_parse_add_rule(char *rule)
 {
-	const char *op = "add_rule";
+	const char *op = "update_policy";
 	struct ima_measure_rule_entry *entry;
 	int result = 0;
 	int audit_info = 0;
@@ -394,8 +391,12 @@ int ima_parse_add_rule(char *rule)
 		mutex_lock(&ima_measure_mutex);
 		list_add_tail(&entry->list, &measure_policy_rules);
 		mutex_unlock(&ima_measure_mutex);
-	} else
+	} else {
 		kfree(entry);
+		integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL,
+				    NULL, op, "invalid policy", result,
+				    audit_info);
+	}
 	return result;
 }
 
-- 
cgit v1.2.3


From f9ce1f1cda8b73a36f47e424975a9dfa78b7840c Mon Sep 17 00:00:00 2001
From: Kentaro Takeda <takedakn@nttdata.co.jp>
Date: Thu, 5 Feb 2009 17:18:11 +0900
Subject: Add in_execve flag into task_struct.

This patch allows LSM modules to determine whether current process is in an
execve operation or not so that they can behave differently while an execve
operation is in progress.

This patch is needed by TOMOYO. Please see another patch titled "LSM adapter
functions." for backgrounds.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 fs/compat.c           | 3 +++
 fs/exec.c             | 3 +++
 include/linux/sched.h | 2 ++
 3 files changed, 8 insertions(+)

(limited to 'include')

diff --git a/fs/compat.c b/fs/compat.c
index 65a070e705ab..25589f8322f2 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1402,6 +1402,7 @@ int compat_do_execve(char * filename,
 	retval = mutex_lock_interruptible(&current->cred_exec_mutex);
 	if (retval < 0)
 		goto out_free;
+	current->in_execve = 1;
 
 	retval = -ENOMEM;
 	bprm->cred = prepare_exec_creds();
@@ -1454,6 +1455,7 @@ int compat_do_execve(char * filename,
 		goto out;
 
 	/* execve succeeded */
+	current->in_execve = 0;
 	mutex_unlock(&current->cred_exec_mutex);
 	acct_update_integrals(current);
 	free_bprm(bprm);
@@ -1470,6 +1472,7 @@ out_file:
 	}
 
 out_unlock:
+	current->in_execve = 0;
 	mutex_unlock(&current->cred_exec_mutex);
 
 out_free:
diff --git a/fs/exec.c b/fs/exec.c
index febfd8ed6ad1..9881dc3bb488 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1278,6 +1278,7 @@ int do_execve(char * filename,
 	retval = mutex_lock_interruptible(&current->cred_exec_mutex);
 	if (retval < 0)
 		goto out_free;
+	current->in_execve = 1;
 
 	retval = -ENOMEM;
 	bprm->cred = prepare_exec_creds();
@@ -1331,6 +1332,7 @@ int do_execve(char * filename,
 		goto out;
 
 	/* execve succeeded */
+	current->in_execve = 0;
 	mutex_unlock(&current->cred_exec_mutex);
 	acct_update_integrals(current);
 	free_bprm(bprm);
@@ -1349,6 +1351,7 @@ out_file:
 	}
 
 out_unlock:
+	current->in_execve = 0;
 	mutex_unlock(&current->cred_exec_mutex);
 
 out_free:
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2127e959e0f4..397c20cfb6a5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1158,6 +1158,8 @@ struct task_struct {
 	/* ??? */
 	unsigned int personality;
 	unsigned did_exec:1;
+	unsigned in_execve:1;	/* Tell the LSMs that the process is doing an
+				 * execve */
 	pid_t pid;
 	pid_t tgid;
 
-- 
cgit v1.2.3


From 7b08b3b4a973de20d28d8a322c002c0a5444002a Mon Sep 17 00:00:00 2001
From: Alina Friedrichsen <x-alina@gmx.net>
Date: Thu, 5 Feb 2009 17:58:34 +0100
Subject: mac80211: Remove TSF atomic requirement from the documentation

The atomic requirement for the TSF callbacks
is outdated. get_tsf() is only called by
ieee80211_rx_bss_info() which is indirectly
called by the work queue ieee80211_sta_work().
In the same context are called several other
non-atomic functions, too.
And the atomic requirement causes problems
for drivers of USB wifi cards.

Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 409e2c69269d..341f3e595ebd 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1354,11 +1354,11 @@ enum ieee80211_ampdu_mlme_action {
  *
  * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
  *	this is only used for IBSS mode BSSID merging and debugging. Is not a
- *	required function. Must be atomic.
+ *	required function.
  *
  * @set_tsf: Set the TSF timer to the specified value in the firmware/hardware.
  *      Currently, this is only used for IBSS mode debugging. Is not a
- *	required function. Must be atomic.
+ *	required function.
  *
  * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize
  *	with other STAs in the IBSS. This is only used in IBSS mode. This
-- 
cgit v1.2.3


From 2a5193119269062608582418deba7af82844159a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 10 Feb 2009 21:25:55 +0100
Subject: cfg80211/nl80211: scanning (and mac80211 update to use it)

This patch adds basic scan capability to cfg80211/nl80211 and
changes mac80211 to use it. The BSS list that cfg80211 maintains
is made driver-accessible with a private area in each BSS struct,
but mac80211 doesn't yet use it. That's another large project.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c      |  12 +-
 drivers/net/wireless/iwlwifi/iwl-core.c     |   1 +
 drivers/net/wireless/iwlwifi/iwl-scan.c     |   2 +-
 drivers/net/wireless/iwlwifi/iwl3945-base.c |  17 +-
 include/linux/nl80211.h                     |  65 +++
 include/net/cfg80211.h                      | 131 +++++
 include/net/mac80211.h                      |   6 +-
 include/net/wireless.h                      |   3 +
 net/mac80211/cfg.c                          |  20 +
 net/mac80211/ieee80211_i.h                  |  18 +-
 net/mac80211/iface.c                        |   2 +-
 net/mac80211/main.c                         |  32 +-
 net/mac80211/mlme.c                         |  37 +-
 net/mac80211/scan.c                         | 356 +++---------
 net/mac80211/wext.c                         |  59 +-
 net/wireless/Makefile                       |   2 +-
 net/wireless/core.c                         |   8 +
 net/wireless/core.h                         |  20 +
 net/wireless/nl80211.c                      | 323 +++++++++++
 net/wireless/nl80211.h                      |   8 +
 net/wireless/scan.c                         | 807 ++++++++++++++++++++++++++++
 21 files changed, 1546 insertions(+), 383 deletions(-)
 create mode 100644 net/wireless/scan.c

(limited to 'include')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index c196abc6db7a..539960da7e13 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2678,11 +2678,19 @@ static void iwl_bss_info_changed(struct ieee80211_hw *hw,
 
 }
 
-static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t ssid_len)
+static int iwl_mac_hw_scan(struct ieee80211_hw *hw,
+			   struct cfg80211_scan_request *req)
 {
 	unsigned long flags;
 	struct iwl_priv *priv = hw->priv;
 	int ret;
+	u8 *ssid = NULL;
+	size_t ssid_len = 0;
+
+	if (req->n_ssids) {
+		ssid = req->ssids[0].ssid;
+		ssid_len = req->ssids[0].ssid_len;
+	}
 
 	IWL_DEBUG_MAC80211(priv, "enter\n");
 
@@ -2718,7 +2726,7 @@ static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t ssid_len)
 
 	if (ssid_len) {
 		priv->one_direct_scan = 1;
-		priv->direct_ssid_len =  min_t(u8, ssid_len, IW_ESSID_MAX_SIZE);
+		priv->direct_ssid_len = ssid_len;
 		memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
 	} else {
 		priv->one_direct_scan = 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index e18c3f326f71..260bf903cb71 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1271,6 +1271,7 @@ int iwl_setup_mac(struct iwl_priv *priv)
 		BIT(NL80211_IFTYPE_ADHOC);
 
 	hw->wiphy->custom_regulatory = true;
+	hw->wiphy->max_scan_ssids = 1;
 
 	/* Default value; 4 EDCA QOS priorities */
 	hw->queues = 4;
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 22bad3ce7d6a..1ec2b20eb37c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -860,7 +860,7 @@ void iwl_bg_scan_completed(struct work_struct *work)
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return;
 
-	ieee80211_scan_completed(priv->hw);
+	ieee80211_scan_completed(priv->hw, false);
 
 	/* Since setting the TXPOWER may have been deferred while
 	 * performing the scan, fire one off */
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 42cc2884971c..0cd8cb96a5ef 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -4442,15 +4442,23 @@ static void iwl3945_bss_info_changed(struct ieee80211_hw *hw,
 
 }
 
-static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
+static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw,
+			       struct cfg80211_scan_request *req)
 {
 	int rc = 0;
 	unsigned long flags;
 	struct iwl_priv *priv = hw->priv;
+	size_t len = 0;
+	u8 *ssid = NULL;
 	DECLARE_SSID_BUF(ssid_buf);
 
 	IWL_DEBUG_MAC80211(priv, "enter\n");
 
+	if (req->n_ssids) {
+		ssid = req->ssids[0].ssid;
+		len = req->ssids[0].ssid_len;
+	}
+
 	mutex_lock(&priv->mutex);
 	spin_lock_irqsave(&priv->lock, flags);
 
@@ -4478,9 +4486,8 @@ static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
 			       print_ssid(ssid_buf, ssid, len), len);
 
 		priv->one_direct_scan = 1;
-		priv->direct_ssid_len = (u8)
-		    min((u8) len, (u8) IW_ESSID_MAX_SIZE);
-		memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
+		priv->direct_ssid_len = len;
+		memcpy(priv->direct_ssid, ssid, len);
 	} else
 		priv->one_direct_scan = 0;
 
@@ -5412,6 +5419,8 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 
 	hw->wiphy->custom_regulatory = true;
 
+	hw->wiphy->max_scan_ssids = 1;
+
 	/* 4 EDCA QOS priorities */
 	hw->queues = 4;
 
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 4bc27049f4e5..8802d1bda382 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -143,6 +143,13 @@
  *	added to all specified management frames generated by
  *	kernel/firmware/driver.
  *
+ * @NL80211_CMD_GET_SCAN: get scan results
+ * @NL80211_CMD_TRIGGER_SCAN: trigger a new scan with the given parameters
+ * @NL80211_CMD_NEW_SCAN_RESULTS: scan notification (as a reply to
+ *	NL80211_CMD_GET_SCAN and on the "scan" multicast group)
+ * @NL80211_CMD_SCAN_ABORTED: scan was aborted, for unspecified reasons,
+ *	partial scan results may be available
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -192,6 +199,11 @@ enum nl80211_commands {
 
 	NL80211_CMD_GET_REG,
 
+	NL80211_CMD_GET_SCAN,
+	NL80211_CMD_TRIGGER_SCAN,
+	NL80211_CMD_NEW_SCAN_RESULTS,
+	NL80211_CMD_SCAN_ABORTED,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -305,6 +317,18 @@ enum nl80211_commands {
  * @NL80211_ATTR_IE: Information element(s) data (used, e.g., with
  *	%NL80211_CMD_SET_MGMT_EXTRA_IE).
  *
+ * @NL80211_ATTR_MAX_NUM_SCAN_SSIDS: number of SSIDs you can scan with
+ *	a single scan request, a wiphy attribute.
+ *
+ * @NL80211_ATTR_SCAN_FREQUENCIES: nested attribute with frequencies (in MHz)
+ * @NL80211_ATTR_SCAN_SSIDS: nested attribute with SSIDs, leave out for passive
+ *	scanning and include a zero-length SSID (wildcard) for wildcard scan
+ * @NL80211_ATTR_SCAN_GENERATION: the scan generation increases whenever the
+ *	scan result list changes (BSS expired or added) so that applications
+ *	can verify that they got a single, consistent snapshot (when all dump
+ *	messages carried the same generation number)
+ * @NL80211_ATTR_BSS: scan result BSS
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -372,6 +396,13 @@ enum nl80211_attrs {
 	NL80211_ATTR_MGMT_SUBTYPE,
 	NL80211_ATTR_IE,
 
+	NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
+
+	NL80211_ATTR_SCAN_FREQUENCIES,
+	NL80211_ATTR_SCAN_SSIDS,
+	NL80211_ATTR_SCAN_GENERATION,
+	NL80211_ATTR_BSS,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -841,4 +872,38 @@ enum nl80211_channel_type {
 	NL80211_CHAN_HT40MINUS,
 	NL80211_CHAN_HT40PLUS
 };
+
+/**
+ * enum nl80211_bss - netlink attributes for a BSS
+ *
+ * @__NL80211_BSS_INVALID: invalid
+ * @NL80211_BSS_FREQUENCY: frequency in MHz (u32)
+ * @NL80211_BSS_TSF: TSF of the received probe response/beacon (u64)
+ * @NL80211_BSS_BEACON_INTERVAL: beacon interval of the (I)BSS (u16)
+ * @NL80211_BSS_CAPABILITY: capability field (CPU order, u16)
+ * @NL80211_BSS_INFORMATION_ELEMENTS: binary attribute containing the
+ *	raw information elements from the probe response/beacon (bin)
+ * @NL80211_BSS_SIGNAL_MBM: signal strength of probe response/beacon
+ *	in mBm (100 * dBm) (s32)
+ * @NL80211_BSS_SIGNAL_UNSPEC: signal strength of the probe response/beacon
+ *	in unspecified units, scaled to 0..100 (u8)
+ * @__NL80211_BSS_AFTER_LAST: internal
+ * @NL80211_BSS_MAX: highest BSS attribute
+ */
+enum nl80211_bss {
+	__NL80211_BSS_INVALID,
+	NL80211_BSS_BSSID,
+	NL80211_BSS_FREQUENCY,
+	NL80211_BSS_TSF,
+	NL80211_BSS_BEACON_INTERVAL,
+	NL80211_BSS_CAPABILITY,
+	NL80211_BSS_INFORMATION_ELEMENTS,
+	NL80211_BSS_SIGNAL_MBM,
+	NL80211_BSS_SIGNAL_UNSPEC,
+
+	/* keep last */
+	__NL80211_BSS_AFTER_LAST,
+	NL80211_BSS_MAX = __NL80211_BSS_AFTER_LAST - 1
+};
+
 #endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index dd1fd51638fc..09a0b268e5cf 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4,6 +4,10 @@
 #include <linux/netlink.h>
 #include <linux/skbuff.h>
 #include <linux/nl80211.h>
+#include <linux/if_ether.h>
+#include <linux/ieee80211.h>
+#include <linux/wireless.h>
+#include <net/iw_handler.h>
 #include <net/genetlink.h>
 /* remove once we remove the wext stuff */
 #include <net/iw_handler.h>
@@ -504,6 +508,83 @@ struct wiphy;
 /* from net/ieee80211.h */
 struct ieee80211_channel;
 
+/**
+ * struct cfg80211_ssid - SSID description
+ * @ssid: the SSID
+ * @ssid_len: length of the ssid
+ */
+struct cfg80211_ssid {
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	u8 ssid_len;
+};
+
+/**
+ * struct cfg80211_scan_request - scan request description
+ *
+ * @ssids: SSIDs to scan for (active scan only)
+ * @n_ssids: number of SSIDs
+ * @channels: channels to scan on.
+ * @n_channels: number of channels for each band
+ * @wiphy: the wiphy this was for
+ * @ifidx: the interface index
+ */
+struct cfg80211_scan_request {
+	struct cfg80211_ssid *ssids;
+	int n_ssids;
+	struct ieee80211_channel **channels;
+	u32 n_channels;
+
+	/* internal */
+	struct wiphy *wiphy;
+	int ifidx;
+};
+
+/**
+ * enum cfg80211_signal_type - signal type
+ *
+ * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
+ * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
+ * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
+ */
+enum cfg80211_signal_type {
+	CFG80211_SIGNAL_TYPE_NONE,
+	CFG80211_SIGNAL_TYPE_MBM,
+	CFG80211_SIGNAL_TYPE_UNSPEC,
+};
+
+/**
+ * struct cfg80211_bss - BSS description
+ *
+ * This structure describes a BSS (which may also be a mesh network)
+ * for use in scan results and similar.
+ *
+ * @bssid: BSSID of the BSS
+ * @tsf: timestamp of last received update
+ * @beacon_interval: the beacon interval as from the frame
+ * @capability: the capability field in host byte order
+ * @information_elements: the information elements (Note that there
+ *	is no guarantee that these are well-formed!)
+ * @len_information_elements: total length of the information elements
+ * @signal: signal strength value
+ * @signal_type: signal type
+ * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
+ */
+struct cfg80211_bss {
+	struct ieee80211_channel *channel;
+
+	u8 bssid[ETH_ALEN];
+	u64 tsf;
+	u16 beacon_interval;
+	u16 capability;
+	u8 *information_elements;
+	size_t len_information_elements;
+
+	s32 signal;
+	enum cfg80211_signal_type signal_type;
+
+	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
+};
+
 /**
  * struct cfg80211_ops - backend description for wireless configuration
  *
@@ -571,6 +652,11 @@ struct ieee80211_channel;
  * @set_channel: Set channel
  *
  * @set_mgmt_extra_ie: Set extra IE data for management frames
+ *
+ * @scan: Request to do a scan. If returning zero, the scan request is given
+ *	the driver, and will be valid until passed to cfg80211_scan_done().
+ *	For scan results, call cfg80211_inform_bss(); you can call this outside
+ *	the scan/scan_done bracket too.
  */
 struct cfg80211_ops {
 	int	(*suspend)(struct wiphy *wiphy);
@@ -648,6 +734,9 @@ struct cfg80211_ops {
 	int	(*set_mgmt_extra_ie)(struct wiphy *wiphy,
 				     struct net_device *dev,
 				     struct mgmt_extra_ie_params *params);
+
+	int	(*scan)(struct wiphy *wiphy, struct net_device *dev,
+			struct cfg80211_scan_request *request);
 };
 
 /* temporary wext handlers */
@@ -658,5 +747,47 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 			  u32 *mode, char *extra);
 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 			  u32 *mode, char *extra);
+int cfg80211_wext_siwscan(struct net_device *dev,
+			  struct iw_request_info *info,
+			  union iwreq_data *wrqu, char *extra);
+int cfg80211_wext_giwscan(struct net_device *dev,
+			  struct iw_request_info *info,
+			  struct iw_point *data, char *extra);
+
+/**
+ * cfg80211_scan_done - notify that scan finished
+ *
+ * @request: the corresponding scan request
+ * @aborted: set to true if the scan was aborted for any reason,
+ *	userspace will be notified of that
+ */
+void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
+
+/**
+ * cfg80211_inform_bss - inform cfg80211 of a new BSS
+ *
+ * @wiphy: the wiphy reporting the BSS
+ * @bss: the found BSS
+ * @gfp: context flags
+ *
+ * This informs cfg80211 that BSS information was found and
+ * the BSS should be updated/added.
+ */
+struct cfg80211_bss*
+cfg80211_inform_bss_frame(struct wiphy *wiphy,
+			  struct ieee80211_channel *channel,
+			  struct ieee80211_mgmt *mgmt, size_t len,
+			  s32 signal, enum cfg80211_signal_type sigtype,
+			  gfp_t gfp);
+
+struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
+				      struct ieee80211_channel *channel,
+				      const u8 *bssid,
+				      const u8 *ssid, size_t ssid_len);
+struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
+				       struct ieee80211_channel *channel,
+				       const u8 *meshid, size_t meshidlen,
+				       const u8 *meshcfg);
+void cfg80211_put_bss(struct cfg80211_bss *bss);
 
 #endif /* __NET_CFG80211_H */
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 341f3e595ebd..88fa3e03e3e9 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1406,7 +1406,8 @@ struct ieee80211_ops {
 	void (*update_tkip_key)(struct ieee80211_hw *hw,
 			struct ieee80211_key_conf *conf, const u8 *address,
 			u32 iv32, u16 *phase1key);
-	int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
+	int (*hw_scan)(struct ieee80211_hw *hw,
+		       struct cfg80211_scan_request *req);
 	int (*get_stats)(struct ieee80211_hw *hw,
 			 struct ieee80211_low_level_stats *stats);
 	void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
@@ -1844,8 +1845,9 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw);
  * mac80211 that the scan finished.
  *
  * @hw: the hardware that finished the scan
+ * @aborted: set to true if scan was aborted
  */
-void ieee80211_scan_completed(struct ieee80211_hw *hw);
+void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted);
 
 /**
  * ieee80211_iterate_active_interfaces - iterate active interfaces
diff --git a/include/net/wireless.h b/include/net/wireless.h
index a42c1562d52b..1c6285eb1666 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -213,6 +213,9 @@ struct wiphy {
 	bool custom_regulatory;
 	bool strict_regulatory;
 
+	int bss_priv_size;
+	u8 max_scan_ssids;
+
 	/* If multiple wiphys are registered and you're handed e.g.
 	 * a regular netdev with assigned ieee80211_ptr, you won't
 	 * know whether it points to a wiphy your driver has registered
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 42d692fd9bec..c8d969be440b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1277,6 +1277,25 @@ static int ieee80211_resume(struct wiphy *wiphy)
 #define ieee80211_resume NULL
 #endif
 
+static int ieee80211_scan(struct wiphy *wiphy,
+			  struct net_device *dev,
+			  struct cfg80211_scan_request *req)
+{
+	struct ieee80211_sub_if_data *sdata;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+	    sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
+		return -EOPNOTSUPP;
+
+	return ieee80211_request_scan(sdata, req);
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -1309,4 +1328,5 @@ struct cfg80211_ops mac80211_config_ops = {
 	.set_mgmt_extra_ie = ieee80211_set_mgmt_extra_ie,
 	.suspend = ieee80211_suspend,
 	.resume = ieee80211_resume,
+	.scan = ieee80211_scan,
 };
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9122416fd6af..cbc0b7d647f9 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -294,8 +294,6 @@ struct ieee80211_if_sta {
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
 	enum ieee80211_sta_mlme_state state;
 	size_t ssid_len;
-	u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
-	size_t scan_ssid_len;
 	u16 aid;
 	u16 ap_capab, capab;
 	u8 *extra_ie; /* to be added to the end of AssocReq */
@@ -658,17 +656,18 @@ struct ieee80211_local {
 
 	/* Scanning and BSS list */
 	bool sw_scanning, hw_scanning;
+	struct cfg80211_ssid scan_ssid;
+	struct cfg80211_scan_request int_scan_req;
+	struct cfg80211_scan_request *scan_req;
+	struct ieee80211_channel *scan_channel;
 	int scan_channel_idx;
-	enum ieee80211_band scan_band;
 
 	enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 	unsigned long last_scan_completed;
 	struct delayed_work scan_work;
 	struct ieee80211_sub_if_data *scan_sdata;
-	struct ieee80211_channel *oper_channel, *scan_channel, *csa_channel;
 	enum nl80211_channel_type oper_channel_type;
-	u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
-	size_t scan_ssid_len;
+	struct ieee80211_channel *oper_channel, *csa_channel;
 	struct list_head bss_list;
 	struct ieee80211_bss *bss_hash[STA_HASH_SIZE];
 	spinlock_t bss_lock;
@@ -929,7 +928,7 @@ void ieee80211_send_pspoll(struct ieee80211_local *local,
 
 /* scan/BSS handling */
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
-			   u8 *ssid, size_t ssid_len);
+			   struct cfg80211_scan_request *req);
 int ieee80211_scan_results(struct ieee80211_local *local,
 			   struct iw_request_info *info,
 			   char *buf, size_t len);
@@ -944,14 +943,15 @@ int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
 
 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
 int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
-			 u8 *ssid, size_t ssid_len);
+			 struct cfg80211_scan_request *req);
 struct ieee80211_bss *
 ieee80211_bss_info_update(struct ieee80211_local *local,
 			  struct ieee80211_rx_status *rx_status,
 			  struct ieee80211_mgmt *mgmt,
 			  size_t len,
 			  struct ieee802_11_elems *elems,
-			  int freq, bool beacon);
+			  struct ieee80211_channel *channel,
+			  bool beacon);
 struct ieee80211_bss *
 ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
 		     u8 *ssid, u8 ssid_len);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 1c17fb8e4058..df94b9365264 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -522,7 +522,7 @@ static int ieee80211_stop(struct net_device *dev)
 			 * scan event to userspace -- the scan is incomplete.
 			 */
 			if (local->sw_scanning)
-				ieee80211_scan_completed(&local->hw);
+				ieee80211_scan_completed(&local->hw, true);
 		}
 
 		conf.vif = &sdata->vif;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 956afea4214d..954edfbb6b6f 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -733,6 +733,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 		return NULL;
 
 	wiphy->privid = mac80211_wiphy_privid;
+	wiphy->max_scan_ssids = 4;
 
 	local = wiphy_priv(wiphy);
 	local->hw.wiphy = wiphy;
@@ -817,25 +818,33 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	enum ieee80211_band band;
 	struct net_device *mdev;
 	struct ieee80211_master_priv *mpriv;
+	int channels, i, j;
 
 	/*
 	 * generic code guarantees at least one band,
 	 * set this very early because much code assumes
 	 * that hw.conf.channel is assigned
 	 */
+	channels = 0;
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		struct ieee80211_supported_band *sband;
 
 		sband = local->hw.wiphy->bands[band];
-		if (sband) {
+		if (sband && !local->oper_channel) {
 			/* init channel we're on */
 			local->hw.conf.channel =
 			local->oper_channel =
 			local->scan_channel = &sband->channels[0];
-			break;
 		}
+		if (sband)
+			channels += sband->n_channels;
 	}
 
+	local->int_scan_req.n_channels = channels;
+	local->int_scan_req.channels = kzalloc(sizeof(void *) * channels, GFP_KERNEL);
+	if (!local->int_scan_req.channels)
+		return -ENOMEM;
+
 	/* if low-level driver supports AP, we also support VLAN */
 	if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP))
 		local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN);
@@ -845,7 +854,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	result = wiphy_register(local->hw.wiphy);
 	if (result < 0)
-		return result;
+		goto fail_wiphy_register;
 
 	/*
 	 * We use the number of queues for feature tests (QoS, HT) internally
@@ -948,6 +957,20 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	ieee80211_led_init(local);
 
+	/* alloc internal scan request */
+	i = 0;
+	local->int_scan_req.ssids = &local->scan_ssid;
+	local->int_scan_req.n_ssids = 1;
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		if (!hw->wiphy->bands[band])
+			continue;
+		for (j = 0; j < hw->wiphy->bands[band]->n_channels; j++) {
+			local->int_scan_req.channels[i] =
+				&hw->wiphy->bands[band]->channels[j];
+			i++;
+		}
+	}
+
 	return 0;
 
 fail_wep:
@@ -966,6 +989,8 @@ fail_workqueue:
 		free_netdev(local->mdev);
 fail_mdev_alloc:
 	wiphy_unregister(local->hw.wiphy);
+fail_wiphy_register:
+	kfree(local->int_scan_req.channels);
 	return result;
 }
 EXPORT_SYMBOL(ieee80211_register_hw);
@@ -1011,6 +1036,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 	ieee80211_wep_free(local);
 	ieee80211_led_exit(local);
 	free_netdev(local->mdev);
+	kfree(local->int_scan_req.channels);
 }
 EXPORT_SYMBOL(ieee80211_unregister_hw);
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index bfc47b330687..46b4817cdea9 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1743,7 +1743,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	}
 
 	bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
-					freq, beacon);
+					channel, beacon);
 	if (!bss)
 		return;
 
@@ -2162,7 +2162,15 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata,
 
 	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
 	       "IBSS networks with same SSID (merge)\n", sdata->dev->name);
-	ieee80211_request_scan(sdata, ifsta->ssid, ifsta->ssid_len);
+
+	/* XXX maybe racy? */
+	if (sdata->local->scan_req)
+		return;
+
+	memcpy(sdata->local->int_scan_req.ssids[0].ssid,
+	       ifsta->ssid, IEEE80211_MAX_SSID_LEN);
+	sdata->local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
+	ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
 }
 
 
@@ -2378,8 +2386,15 @@ dont_join:
 			      IEEE80211_SCAN_INTERVAL)) {
 		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
 		       "join\n", sdata->dev->name);
-		return ieee80211_request_scan(sdata, ifsta->ssid,
-					      ifsta->ssid_len);
+
+		/* XXX maybe racy? */
+		if (local->scan_req)
+			return -EBUSY;
+
+		memcpy(local->int_scan_req.ssids[0].ssid,
+		       ifsta->ssid, IEEE80211_MAX_SSID_LEN);
+		local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
+		return ieee80211_request_scan(sdata, &local->int_scan_req);
 	} else if (ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED) {
 		int interval = IEEE80211_SCAN_INTERVAL;
 
@@ -2478,11 +2493,16 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
 	} else {
 		if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
 			ifsta->assoc_scan_tries++;
+			/* XXX maybe racy? */
+			if (local->scan_req)
+				return -1;
+			memcpy(local->int_scan_req.ssids[0].ssid,
+			       ifsta->ssid, IEEE80211_MAX_SSID_LEN);
 			if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
-				ieee80211_start_scan(sdata, NULL, 0);
+				local->int_scan_req.ssids[0].ssid_len = 0;
 			else
-				ieee80211_start_scan(sdata, ifsta->ssid,
-							 ifsta->ssid_len);
+				local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
+			ieee80211_start_scan(sdata, &local->int_scan_req);
 			ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
 			set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
 		} else {
@@ -2520,8 +2540,7 @@ static void ieee80211_sta_work(struct work_struct *work)
 	    ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE &&
 	    ifsta->state != IEEE80211_STA_MLME_ASSOCIATE &&
 	    test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
-		ieee80211_start_scan(sdata, ifsta->scan_ssid,
-				     ifsta->scan_ssid_len);
+		ieee80211_start_scan(sdata, local->scan_req);
 		return;
 	}
 
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index eddca4e1e13c..c6b275b10cf9 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -13,6 +13,9 @@
  */
 
 /* TODO:
+ * figure out how to avoid that the "current BSS" expires
+ * clean up IBSS code (in MLME), see why it adds a BSS to the list
+ * use cfg80211's BSS handling (depends on IBSS TODO above)
  * order BSS list by RSSI(?) ("quality of AP")
  * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
  *    SSID)
@@ -225,10 +228,26 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
 			  struct ieee80211_mgmt *mgmt,
 			  size_t len,
 			  struct ieee802_11_elems *elems,
-			  int freq, bool beacon)
+			  struct ieee80211_channel *channel,
+			  bool beacon)
 {
 	struct ieee80211_bss *bss;
-	int clen;
+	int clen, freq = channel->center_freq;
+	enum cfg80211_signal_type sigtype = CFG80211_SIGNAL_TYPE_NONE;
+	s32 signal = 0;
+
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
+		sigtype = CFG80211_SIGNAL_TYPE_MBM;
+		signal = rx_status->signal * 100;
+	} else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
+		sigtype = CFG80211_SIGNAL_TYPE_UNSPEC;
+		signal = (rx_status->signal * 100) / local->hw.max_signal;
+	}
+
+	cfg80211_put_bss(
+		cfg80211_inform_bss_frame(local->hw.wiphy, channel,
+					  mgmt, len, signal, sigtype,
+					  GFP_ATOMIC));
 
 #ifdef CONFIG_MAC80211_MESH
 	if (elems->mesh_config)
@@ -401,7 +420,7 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 
 	bss = ieee80211_bss_info_update(sdata->local, rx_status,
 					mgmt, skb->len, &elems,
-					freq, beacon);
+					channel, beacon);
 	if (bss)
 		ieee80211_rx_bss_put(sdata->local, bss);
 
@@ -439,26 +458,22 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 	ieee80211_tx_skb(sdata, skb, 0);
 }
 
-void ieee80211_scan_completed(struct ieee80211_hw *hw)
+void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
-	union iwreq_data wrqu;
 
 	if (WARN_ON(!local->hw_scanning && !local->sw_scanning))
 		return;
 
-	local->last_scan_completed = jiffies;
-	memset(&wrqu, 0, sizeof(wrqu));
+	if (WARN_ON(!local->scan_req))
+		return;
 
-	/*
-	 * local->scan_sdata could have been NULLed by the interface
-	 * down code in case we were scanning on an interface that is
-	 * being taken down.
-	 */
-	sdata = local->scan_sdata;
-	if (sdata)
-		wireless_send_event(sdata->dev, SIOCGIWSCAN, &wrqu, NULL);
+	if (local->scan_req != &local->int_scan_req)
+		cfg80211_scan_done(local->scan_req, aborted);
+	local->scan_req = NULL;
+
+	local->last_scan_completed = jiffies;
 
 	if (local->hw_scanning) {
 		local->hw_scanning = false;
@@ -520,9 +535,8 @@ void ieee80211_scan_work(struct work_struct *work)
 	struct ieee80211_local *local =
 		container_of(work, struct ieee80211_local, scan_work.work);
 	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
-	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *chan;
-	int skip;
+	int skip, i;
 	unsigned long next_delay = 0;
 
 	/*
@@ -533,33 +547,13 @@ void ieee80211_scan_work(struct work_struct *work)
 
 	switch (local->scan_state) {
 	case SCAN_SET_CHANNEL:
-		/*
-		 * Get current scan band. scan_band may be IEEE80211_NUM_BANDS
-		 * after we successfully scanned the last channel of the last
-		 * band (and the last band is supported by the hw)
-		 */
-		if (local->scan_band < IEEE80211_NUM_BANDS)
-			sband = local->hw.wiphy->bands[local->scan_band];
-		else
-			sband = NULL;
-
-		/*
-		 * If we are at an unsupported band and have more bands
-		 * left to scan, advance to the next supported one.
-		 */
-		while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) {
-			local->scan_band++;
-			sband = local->hw.wiphy->bands[local->scan_band];
-			local->scan_channel_idx = 0;
-		}
-
 		/* if no more bands/channels left, complete scan */
-		if (!sband || local->scan_channel_idx >= sband->n_channels) {
-			ieee80211_scan_completed(local_to_hw(local));
+		if (local->scan_channel_idx >= local->scan_req->n_channels) {
+			ieee80211_scan_completed(local_to_hw(local), false);
 			return;
 		}
 		skip = 0;
-		chan = &sband->channels[local->scan_channel_idx];
+		chan = local->scan_req->channels[local->scan_channel_idx];
 
 		if (chan->flags & IEEE80211_CHAN_DISABLED ||
 		    (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
@@ -575,15 +569,6 @@ void ieee80211_scan_work(struct work_struct *work)
 
 		/* advance state machine to next channel/band */
 		local->scan_channel_idx++;
-		if (local->scan_channel_idx >= sband->n_channels) {
-			/*
-			 * scan_band may end up == IEEE80211_NUM_BANDS, but
-			 * we'll catch that case above and complete the scan
-			 * if that is the case.
-			 */
-			local->scan_band++;
-			local->scan_channel_idx = 0;
-		}
 
 		if (skip)
 			break;
@@ -596,10 +581,14 @@ void ieee80211_scan_work(struct work_struct *work)
 		next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
 		local->scan_state = SCAN_SET_CHANNEL;
 
-		if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN)
+		if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
+		    !local->scan_req->n_ssids)
 			break;
-		ieee80211_send_probe_req(sdata, NULL, local->scan_ssid,
-					 local->scan_ssid_len);
+		for (i = 0; i < local->scan_req->n_ssids; i++)
+			ieee80211_send_probe_req(
+				sdata, NULL,
+				local->scan_req->ssids[i].ssid,
+				local->scan_req->ssids[i].ssid_len);
 		next_delay = IEEE80211_CHANNEL_TIME;
 		break;
 	}
@@ -610,14 +599,19 @@ void ieee80211_scan_work(struct work_struct *work)
 
 
 int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
-			 u8 *ssid, size_t ssid_len)
+			 struct cfg80211_scan_request *req)
 {
 	struct ieee80211_local *local = scan_sdata->local;
 	struct ieee80211_sub_if_data *sdata;
 
-	if (ssid_len > IEEE80211_MAX_SSID_LEN)
+	if (!req)
 		return -EINVAL;
 
+	if (local->scan_req && local->scan_req != req)
+		return -EBUSY;
+
+	local->scan_req = req;
+
 	/* MLME-SCAN.request (page 118)  page 144 (11.1.3.1)
 	 * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
 	 * BSSID: MACAddress
@@ -645,7 +639,7 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 		int rc;
 
 		local->hw_scanning = true;
-		rc = local->ops->hw_scan(local_to_hw(local), ssid, ssid_len);
+		rc = local->ops->hw_scan(local_to_hw(local), req);
 		if (rc) {
 			local->hw_scanning = false;
 			return rc;
@@ -678,15 +672,10 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 	}
 	mutex_unlock(&local->iflist_mtx);
 
-	if (ssid) {
-		local->scan_ssid_len = ssid_len;
-		memcpy(local->scan_ssid, ssid, ssid_len);
-	} else
-		local->scan_ssid_len = 0;
 	local->scan_state = SCAN_SET_CHANNEL;
 	local->scan_channel_idx = 0;
-	local->scan_band = IEEE80211_BAND_2GHZ;
 	local->scan_sdata = scan_sdata;
+	local->scan_req = req;
 
 	netif_addr_lock_bh(local->mdev);
 	local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
@@ -706,13 +695,21 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 
 
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
-			   u8 *ssid, size_t ssid_len)
+			   struct cfg80211_scan_request *req)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_sta *ifsta;
 
+	if (!req)
+		return -EINVAL;
+
+	if (local->scan_req && local->scan_req != req)
+		return -EBUSY;
+
+	local->scan_req = req;
+
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return ieee80211_start_scan(sdata, ssid, ssid_len);
+		return ieee80211_start_scan(sdata, req);
 
 	/*
 	 * STA has a state machine that might need to defer scanning
@@ -727,241 +724,8 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 	}
 
 	ifsta = &sdata->u.sta;
-
-	ifsta->scan_ssid_len = ssid_len;
-	if (ssid_len)
-		memcpy(ifsta->scan_ssid, ssid, ssid_len);
 	set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
 	queue_work(local->hw.workqueue, &ifsta->work);
 
 	return 0;
 }
-
-
-static void ieee80211_scan_add_ies(struct iw_request_info *info,
-				   struct ieee80211_bss *bss,
-				   char **current_ev, char *end_buf)
-{
-	u8 *pos, *end, *next;
-	struct iw_event iwe;
-
-	if (bss == NULL || bss->ies == NULL)
-		return;
-
-	/*
-	 * If needed, fragment the IEs buffer (at IE boundaries) into short
-	 * enough fragments to fit into IW_GENERIC_IE_MAX octet messages.
-	 */
-	pos = bss->ies;
-	end = pos + bss->ies_len;
-
-	while (end - pos > IW_GENERIC_IE_MAX) {
-		next = pos + 2 + pos[1];
-		while (next + 2 + next[1] - pos < IW_GENERIC_IE_MAX)
-			next = next + 2 + next[1];
-
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = IWEVGENIE;
-		iwe.u.data.length = next - pos;
-		*current_ev = iwe_stream_add_point(info, *current_ev,
-						   end_buf, &iwe, pos);
-
-		pos = next;
-	}
-
-	if (end > pos) {
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = IWEVGENIE;
-		iwe.u.data.length = end - pos;
-		*current_ev = iwe_stream_add_point(info, *current_ev,
-						   end_buf, &iwe, pos);
-	}
-}
-
-
-static char *
-ieee80211_scan_result(struct ieee80211_local *local,
-		      struct iw_request_info *info,
-		      struct ieee80211_bss *bss,
-		      char *current_ev, char *end_buf)
-{
-	struct iw_event iwe;
-	char *buf;
-
-	if (time_after(jiffies,
-		       bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
-		return current_ev;
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWAP;
-	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
-	memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
-	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
-					  IW_EV_ADDR_LEN);
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWESSID;
-	if (bss_mesh_cfg(bss)) {
-		iwe.u.data.length = bss_mesh_id_len(bss);
-		iwe.u.data.flags = 1;
-		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-						  &iwe, bss_mesh_id(bss));
-	} else {
-		iwe.u.data.length = bss->ssid_len;
-		iwe.u.data.flags = 1;
-		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-						  &iwe, bss->ssid);
-	}
-
-	if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
-	    || bss_mesh_cfg(bss)) {
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = SIOCGIWMODE;
-		if (bss_mesh_cfg(bss))
-			iwe.u.mode = IW_MODE_MESH;
-		else if (bss->capability & WLAN_CAPABILITY_ESS)
-			iwe.u.mode = IW_MODE_MASTER;
-		else
-			iwe.u.mode = IW_MODE_ADHOC;
-		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
-						  &iwe, IW_EV_UINT_LEN);
-	}
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWFREQ;
-	iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
-	iwe.u.freq.e = 0;
-	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
-					  IW_EV_FREQ_LEN);
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWFREQ;
-	iwe.u.freq.m = bss->freq;
-	iwe.u.freq.e = 6;
-	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
-					  IW_EV_FREQ_LEN);
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = IWEVQUAL;
-	iwe.u.qual.qual = bss->qual;
-	iwe.u.qual.level = bss->signal;
-	iwe.u.qual.noise = bss->noise;
-	iwe.u.qual.updated = local->wstats_flags;
-	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
-					  IW_EV_QUAL_LEN);
-
-	memset(&iwe, 0, sizeof(iwe));
-	iwe.cmd = SIOCGIWENCODE;
-	if (bss->capability & WLAN_CAPABILITY_PRIVACY)
-		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
-	else
-		iwe.u.data.flags = IW_ENCODE_DISABLED;
-	iwe.u.data.length = 0;
-	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-					  &iwe, "");
-
-	ieee80211_scan_add_ies(info, bss, &current_ev, end_buf);
-
-	if (bss->supp_rates_len > 0) {
-		/* display all supported rates in readable format */
-		char *p = current_ev + iwe_stream_lcp_len(info);
-		int i;
-
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = SIOCGIWRATE;
-		/* Those two flags are ignored... */
-		iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
-
-		for (i = 0; i < bss->supp_rates_len; i++) {
-			iwe.u.bitrate.value = ((bss->supp_rates[i] &
-							0x7f) * 500000);
-			p = iwe_stream_add_value(info, current_ev, p,
-					end_buf, &iwe, IW_EV_PARAM_LEN);
-		}
-		current_ev = p;
-	}
-
-	buf = kmalloc(30, GFP_ATOMIC);
-	if (buf) {
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = IWEVCUSTOM;
-		sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
-		iwe.u.data.length = strlen(buf);
-		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
-						  &iwe, buf);
-		memset(&iwe, 0, sizeof(iwe));
-		iwe.cmd = IWEVCUSTOM;
-		sprintf(buf, " Last beacon: %dms ago",
-			jiffies_to_msecs(jiffies - bss->last_update));
-		iwe.u.data.length = strlen(buf);
-		current_ev = iwe_stream_add_point(info, current_ev,
-						  end_buf, &iwe, buf);
-		kfree(buf);
-	}
-
-	if (bss_mesh_cfg(bss)) {
-		u8 *cfg = bss_mesh_cfg(bss);
-		buf = kmalloc(50, GFP_ATOMIC);
-		if (buf) {
-			memset(&iwe, 0, sizeof(iwe));
-			iwe.cmd = IWEVCUSTOM;
-			sprintf(buf, "Mesh network (version %d)", cfg[0]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			sprintf(buf, "Path Selection Protocol ID: "
-				"0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
-							cfg[4]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			sprintf(buf, "Path Selection Metric ID: "
-				"0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
-							cfg[8]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			sprintf(buf, "Congestion Control Mode ID: "
-				"0x%02X%02X%02X%02X", cfg[9], cfg[10],
-							cfg[11], cfg[12]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			sprintf(buf, "Channel Precedence: "
-				"0x%02X%02X%02X%02X", cfg[13], cfg[14],
-							cfg[15], cfg[16]);
-			iwe.u.data.length = strlen(buf);
-			current_ev = iwe_stream_add_point(info, current_ev,
-							  end_buf,
-							  &iwe, buf);
-			kfree(buf);
-		}
-	}
-
-	return current_ev;
-}
-
-
-int ieee80211_scan_results(struct ieee80211_local *local,
-			   struct iw_request_info *info,
-			   char *buf, size_t len)
-{
-	char *current_ev = buf;
-	char *end_buf = buf + len;
-	struct ieee80211_bss *bss;
-
-	spin_lock_bh(&local->bss_lock);
-	list_for_each_entry(bss, &local->bss_list, list) {
-		if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
-			spin_unlock_bh(&local->bss_lock);
-			return -E2BIG;
-		}
-		current_ev = ieee80211_scan_result(local, info, bss,
-						       current_ev, end_buf);
-	}
-	spin_unlock_bh(&local->bss_lock);
-	return current_ev - buf;
-}
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index acd5808b87f4..b337d7d5edb3 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -173,8 +173,9 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev,
 	range->num_encoding_sizes = 2;
 	range->max_encoding_tokens = NUM_DEFAULT_KEYS;
 
+	/* cfg80211 requires this, and enforces 0..100 */
 	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
-		range->max_qual.level = local->hw.max_signal;
+		range->max_qual.level = 100;
 	else if  (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
 		range->max_qual.level = -110;
 	else
@@ -415,58 +416,6 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
 }
 
 
-static int ieee80211_ioctl_siwscan(struct net_device *dev,
-				   struct iw_request_info *info,
-				   union iwreq_data *wrqu, char *extra)
-{
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct iw_scan_req *req = NULL;
-	u8 *ssid = NULL;
-	size_t ssid_len = 0;
-
-	if (!netif_running(dev))
-		return -ENETDOWN;
-
-	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
-	    sdata->vif.type != NL80211_IFTYPE_ADHOC &&
-	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
-		return -EOPNOTSUPP;
-
-	/* if SSID was specified explicitly then use that */
-	if (wrqu->data.length == sizeof(struct iw_scan_req) &&
-	    wrqu->data.flags & IW_SCAN_THIS_ESSID) {
-		req = (struct iw_scan_req *)extra;
-		ssid = req->essid;
-		ssid_len = req->essid_len;
-	}
-
-	return ieee80211_request_scan(sdata, ssid, ssid_len);
-}
-
-
-static int ieee80211_ioctl_giwscan(struct net_device *dev,
-				   struct iw_request_info *info,
-				   struct iw_point *data, char *extra)
-{
-	int res;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_sub_if_data *sdata;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	if (local->sw_scanning || local->hw_scanning)
-		return -EAGAIN;
-
-	res = ieee80211_scan_results(local, info, extra, data->length);
-	if (res >= 0) {
-		data->length = res;
-		return 0;
-	}
-	data->length = 0;
-	return res;
-}
-
-
 static int ieee80211_ioctl_siwrate(struct net_device *dev,
 				  struct iw_request_info *info,
 				  struct iw_param *rate, char *extra)
@@ -1165,8 +1114,8 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) ieee80211_ioctl_giwap,		/* SIOCGIWAP */
 	(iw_handler) ieee80211_ioctl_siwmlme,		/* SIOCSIWMLME */
 	(iw_handler) NULL,				/* SIOCGIWAPLIST */
-	(iw_handler) ieee80211_ioctl_siwscan,		/* SIOCSIWSCAN */
-	(iw_handler) ieee80211_ioctl_giwscan,		/* SIOCGIWSCAN */
+	(iw_handler) cfg80211_wext_siwscan,		/* SIOCSIWSCAN */
+	(iw_handler) cfg80211_wext_giwscan,		/* SIOCGIWSCAN */
 	(iw_handler) ieee80211_ioctl_siwessid,		/* SIOCSIWESSID */
 	(iw_handler) ieee80211_ioctl_giwessid,		/* SIOCGIWESSID */
 	(iw_handler) NULL,				/* SIOCSIWNICKN */
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index 938a334c8dbc..dad43c24f695 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -5,7 +5,7 @@ obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
 obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
 obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
 
-cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o
+cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o
 cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o
 cfg80211-$(CONFIG_NL80211) += nl80211.o
 
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 125226476089..3cccd1390cea 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -240,6 +240,8 @@ struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
 	mutex_init(&drv->mtx);
 	mutex_init(&drv->devlist_mtx);
 	INIT_LIST_HEAD(&drv->netdev_list);
+	spin_lock_init(&drv->bss_lock);
+	INIT_LIST_HEAD(&drv->bss_list);
 
 	device_initialize(&drv->wiphy.dev);
 	drv->wiphy.dev.class = &ieee80211_class;
@@ -259,6 +261,9 @@ int wiphy_register(struct wiphy *wiphy)
 	int i;
 	u16 ifmodes = wiphy->interface_modes;
 
+	if (WARN_ON(wiphy->max_scan_ssids < 1))
+		return -EINVAL;
+
 	/* sanity check ifmodes */
 	WARN_ON(!ifmodes);
 	ifmodes &= ((1 << __NL80211_IFTYPE_AFTER_LAST) - 1) & ~1;
@@ -367,8 +372,11 @@ EXPORT_SYMBOL(wiphy_unregister);
 
 void cfg80211_dev_free(struct cfg80211_registered_device *drv)
 {
+	struct cfg80211_internal_bss *scan, *tmp;
 	mutex_destroy(&drv->mtx);
 	mutex_destroy(&drv->devlist_mtx);
+	list_for_each_entry_safe(scan, tmp, &drv->bss_list, list)
+		kfree(scan);
 	kfree(drv);
 }
 
diff --git a/net/wireless/core.h b/net/wireless/core.h
index f7fb9f413028..e29ad4cd464f 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -8,6 +8,8 @@
 #include <linux/mutex.h>
 #include <linux/list.h>
 #include <linux/netdevice.h>
+#include <linux/kref.h>
+#include <linux/rbtree.h>
 #include <net/genetlink.h>
 #include <net/wireless.h>
 #include <net/cfg80211.h>
@@ -41,6 +43,13 @@ struct cfg80211_registered_device {
 	struct mutex devlist_mtx;
 	struct list_head netdev_list;
 
+	/* BSSes/scanning */
+	spinlock_t bss_lock;
+	struct list_head bss_list;
+	struct rb_root bss_tree;
+	u32 bss_generation;
+	struct cfg80211_scan_request *scan_req; /* protected by RTNL */
+
 	/* must be last because of the way we do wiphy_priv(),
 	 * and it should at least be aligned to NETDEV_ALIGN */
 	struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
@@ -56,6 +65,15 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
 extern struct mutex cfg80211_drv_mutex;
 extern struct list_head cfg80211_drv_list;
 
+struct cfg80211_internal_bss {
+	struct list_head list;
+	struct rb_node rbn;
+	unsigned long ts;
+	struct kref ref;
+	/* must be last because of priv member */
+	struct cfg80211_bss pub;
+};
+
 /*
  * This function returns a pointer to the driver
  * that the genl_info item that is passed refers to.
@@ -94,4 +112,6 @@ extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
 void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby);
 
+void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
+
 #endif /* __NET_WIRELESS_CORE_H */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d452396006ee..298a4de59948 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -14,6 +14,7 @@
 #include <linux/nl80211.h>
 #include <linux/rtnetlink.h>
 #include <linux/netlink.h>
+#include <linux/etherdevice.h>
 #include <net/genetlink.h>
 #include <net/cfg80211.h>
 #include "core.h"
@@ -109,6 +110,8 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
 	[NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
 	[NL80211_ATTR_IE] = { .type = NLA_BINARY,
 			      .len = IEEE80211_MAX_DATA_LEN },
+	[NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
+	[NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
 };
 
 /* message building helper */
@@ -141,6 +144,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 
 	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
 	NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
+	NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
+		   dev->wiphy.max_scan_ssids);
 
 	nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
 	if (!nl_modes)
@@ -2270,6 +2275,246 @@ static int nl80211_set_mgmt_extra_ie(struct sk_buff *skb,
 	return err;
 }
 
+static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	struct net_device *dev;
+	struct cfg80211_scan_request *request;
+	struct cfg80211_ssid *ssid;
+	struct ieee80211_channel *channel;
+	struct nlattr *attr;
+	struct wiphy *wiphy;
+	int err, tmp, n_ssids = 0, n_channels = 0, i;
+	enum ieee80211_band band;
+
+	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+	if (err)
+		return err;
+
+	wiphy = &drv->wiphy;
+
+	if (!drv->ops->scan) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	rtnl_lock();
+
+	if (drv->scan_req) {
+		err = -EBUSY;
+		goto out_unlock;
+	}
+
+	if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
+		nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp)
+			n_channels++;
+		if (!n_channels) {
+			err = -EINVAL;
+			goto out_unlock;
+		}
+	} else {
+		for (band = 0; band < IEEE80211_NUM_BANDS; band++)
+			if (wiphy->bands[band])
+				n_channels += wiphy->bands[band]->n_channels;
+	}
+
+	if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
+		nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
+			n_ssids++;
+
+	if (n_ssids > wiphy->max_scan_ssids) {
+		err = -EINVAL;
+		goto out_unlock;
+	}
+
+	request = kzalloc(sizeof(*request)
+			+ sizeof(*ssid) * n_ssids
+			+ sizeof(channel) * n_channels, GFP_KERNEL);
+	if (!request) {
+		err = -ENOMEM;
+		goto out_unlock;
+	}
+
+	request->channels = (void *)((char *)request + sizeof(*request));
+	request->n_channels = n_channels;
+	if (n_ssids)
+		request->ssids = (void *)(request->channels + n_channels);
+	request->n_ssids = n_ssids;
+
+	if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
+		/* user specified, bail out if channel not found */
+		request->n_channels = n_channels;
+		i = 0;
+		nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
+			request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr));
+			if (!request->channels[i]) {
+				err = -EINVAL;
+				goto out_free;
+			}
+			i++;
+		}
+	} else {
+		/* all channels */
+		i = 0;
+		for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+			int j;
+			if (!wiphy->bands[band])
+				continue;
+			for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
+				request->channels[i] = &wiphy->bands[band]->channels[j];
+				i++;
+			}
+		}
+	}
+
+	i = 0;
+	if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
+		nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
+			if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
+				err = -EINVAL;
+				goto out_free;
+			}
+			memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
+			request->ssids[i].ssid_len = nla_len(attr);
+			i++;
+		}
+	}
+
+	request->ifidx = dev->ifindex;
+	request->wiphy = &drv->wiphy;
+
+	drv->scan_req = request;
+	err = drv->ops->scan(&drv->wiphy, dev, request);
+
+ out_free:
+	if (err) {
+		drv->scan_req = NULL;
+		kfree(request);
+	}
+ out_unlock:
+	rtnl_unlock();
+ out:
+	cfg80211_put_dev(drv);
+	dev_put(dev);
+	return err;
+}
+
+static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+			    struct cfg80211_registered_device *rdev,
+			    struct net_device *dev,
+			    struct cfg80211_bss *res)
+{
+	void *hdr;
+	struct nlattr *bss;
+
+	hdr = nl80211hdr_put(msg, pid, seq, flags,
+			     NL80211_CMD_NEW_SCAN_RESULTS);
+	if (!hdr)
+		return -1;
+
+	NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION,
+		    rdev->bss_generation);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+
+	bss = nla_nest_start(msg, NL80211_ATTR_BSS);
+	if (!bss)
+		goto nla_put_failure;
+	if (!is_zero_ether_addr(res->bssid))
+		NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
+	if (res->information_elements && res->len_information_elements)
+		NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
+			res->len_information_elements,
+			res->information_elements);
+	if (res->tsf)
+		NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
+	if (res->beacon_interval)
+		NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
+	NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
+	NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
+
+	switch (res->signal_type) {
+	case CFG80211_SIGNAL_TYPE_MBM:
+		NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
+		break;
+	case CFG80211_SIGNAL_TYPE_UNSPEC:
+		NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
+		break;
+	default:
+		break;
+	}
+
+	nla_nest_end(msg, bss);
+
+	return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	return -EMSGSIZE;
+}
+
+static int nl80211_dump_scan(struct sk_buff *skb,
+			     struct netlink_callback *cb)
+{
+	struct cfg80211_registered_device *dev;
+	struct net_device *netdev;
+	struct cfg80211_internal_bss *scan;
+	int ifidx = cb->args[0];
+	int start = cb->args[1], idx = 0;
+	int err;
+
+	if (!ifidx) {
+		err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
+				  nl80211_fam.attrbuf, nl80211_fam.maxattr,
+				  nl80211_policy);
+		if (err)
+			return err;
+
+		if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
+			return -EINVAL;
+
+		ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
+		if (!ifidx)
+			return -EINVAL;
+		cb->args[0] = ifidx;
+	}
+
+	netdev = dev_get_by_index(&init_net, ifidx);
+	if (!netdev)
+		return -ENODEV;
+
+	dev = cfg80211_get_dev_from_ifindex(ifidx);
+	if (IS_ERR(dev)) {
+		err = PTR_ERR(dev);
+		goto out_put_netdev;
+	}
+
+	spin_lock_bh(&dev->bss_lock);
+	cfg80211_bss_expire(dev);
+
+	list_for_each_entry(scan, &dev->bss_list, list) {
+		if (++idx <= start)
+			continue;
+		if (nl80211_send_bss(skb,
+				NETLINK_CB(cb->skb).pid,
+				cb->nlh->nlmsg_seq, NLM_F_MULTI,
+				dev, netdev, &scan->pub) < 0) {
+			idx--;
+			goto out;
+		}
+	}
+
+ out:
+	spin_unlock_bh(&dev->bss_lock);
+
+	cb->args[1] = idx;
+	err = skb->len;
+	cfg80211_put_dev(dev);
+ out_put_netdev:
+	dev_put(netdev);
+
+	return err;
+}
+
 static struct genl_ops nl80211_ops[] = {
 	{
 		.cmd = NL80211_CMD_GET_WIPHY,
@@ -2443,12 +2688,26 @@ static struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_ADMIN_PERM,
 	},
+	{
+		.cmd = NL80211_CMD_TRIGGER_SCAN,
+		.doit = nl80211_trigger_scan,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NL80211_CMD_GET_SCAN,
+		.policy = nl80211_policy,
+		.dumpit = nl80211_dump_scan,
+	},
 };
 
 /* multicast groups */
 static struct genl_multicast_group nl80211_config_mcgrp = {
 	.name = "config",
 };
+static struct genl_multicast_group nl80211_scan_mcgrp = {
+	.name = "scan",
+};
 
 /* notification functions */
 
@@ -2468,6 +2727,66 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
 	genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
 }
 
+static int nl80211_send_scan_donemsg(struct sk_buff *msg,
+				    struct cfg80211_registered_device *rdev,
+				    struct net_device *netdev,
+				    u32 pid, u32 seq, int flags,
+				    u32 cmd)
+{
+	void *hdr;
+
+	hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
+	if (!hdr)
+		return -1;
+
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->idx);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+
+	/* XXX: we should probably bounce back the request? */
+
+	return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	return -EMSGSIZE;
+}
+
+void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
+			    struct net_device *netdev)
+{
+	struct sk_buff *msg;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg)
+		return;
+
+	if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0,
+				      NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
+}
+
+void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
+			       struct net_device *netdev)
+{
+	struct sk_buff *msg;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg)
+		return;
+
+	if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0,
+				      NL80211_CMD_SCAN_ABORTED) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
+}
+
 /* initialisation/exit functions */
 
 int nl80211_init(void)
@@ -2488,6 +2807,10 @@ int nl80211_init(void)
 	if (err)
 		goto err_out;
 
+	err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
+	if (err)
+		goto err_out;
+
 	return 0;
  err_out:
 	genl_unregister_family(&nl80211_fam);
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index f3ea5c029aee..b565a5f84e97 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -7,6 +7,10 @@
 extern int nl80211_init(void);
 extern void nl80211_exit(void);
 extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
+extern void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
+				   struct net_device *netdev);
+extern void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
+				      struct net_device *netdev);
 #else
 static inline int nl80211_init(void)
 {
@@ -19,6 +23,10 @@ static inline void nl80211_notify_dev_rename(
 	struct cfg80211_registered_device *rdev)
 {
 }
+static inline void
+nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
+		       struct net_device *netdev)
+{}
 #endif /* CONFIG_NL80211 */
 
 #endif /* __NET_WIRELESS_NL80211_H */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
new file mode 100644
index 000000000000..009d12810c55
--- /dev/null
+++ b/net/wireless/scan.c
@@ -0,0 +1,807 @@
+/*
+ * cfg80211 scan result handling
+ *
+ * Copyright 2008 Johannes Berg <johannes@sipsolutions.net>
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/wireless.h>
+#include <linux/nl80211.h>
+#include <linux/etherdevice.h>
+#include <net/arp.h>
+#include <net/cfg80211.h>
+#include <net/iw_handler.h>
+#include "core.h"
+#include "nl80211.h"
+
+#define IEEE80211_SCAN_RESULT_EXPIRE	(10 * HZ)
+
+void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
+{
+	struct net_device *dev;
+#ifdef CONFIG_WIRELESS_EXT
+	union iwreq_data wrqu;
+#endif
+
+	dev = dev_get_by_index(&init_net, request->ifidx);
+	if (!dev)
+		goto out;
+
+	WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
+	wiphy_to_dev(request->wiphy)->scan_req = NULL;
+
+	if (aborted)
+		nl80211_send_scan_aborted(wiphy_to_dev(request->wiphy), dev);
+	else
+		nl80211_send_scan_done(wiphy_to_dev(request->wiphy), dev);
+
+#ifdef CONFIG_WIRELESS_EXT
+	if (!aborted) {
+		memset(&wrqu, 0, sizeof(wrqu));
+
+		wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
+	}
+#endif
+
+	dev_put(dev);
+
+ out:
+	kfree(request);
+}
+EXPORT_SYMBOL(cfg80211_scan_done);
+
+static void bss_release(struct kref *ref)
+{
+	struct cfg80211_internal_bss *bss;
+
+	bss = container_of(ref, struct cfg80211_internal_bss, ref);
+	kfree(bss);
+}
+
+/* must hold dev->bss_lock! */
+void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
+{
+	struct cfg80211_internal_bss *bss, *tmp;
+	bool expired = false;
+
+	list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {
+		if (!time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
+			continue;
+		list_del(&bss->list);
+		rb_erase(&bss->rbn, &dev->bss_tree);
+		kref_put(&bss->ref, bss_release);
+		expired = true;
+	}
+
+	if (expired)
+		dev->bss_generation++;
+}
+
+static u8 *find_ie(u8 num, u8 *ies, size_t len)
+{
+	while (len > 2 && ies[0] != num) {
+		len -= ies[1] + 2;
+		ies += ies[1] + 2;
+	}
+	if (len < 2)
+		return NULL;
+	if (len < 2 + ies[1])
+		return NULL;
+	return ies;
+}
+
+static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2)
+{
+	const u8 *ie1 = find_ie(num, ies1, len1);
+	const u8 *ie2 = find_ie(num, ies2, len2);
+	int r;
+
+	if (!ie1 && !ie2)
+		return 0;
+	if (!ie1)
+		return -1;
+
+	r = memcmp(ie1 + 2, ie2 + 2, min(ie1[1], ie2[1]));
+	if (r == 0 && ie1[1] != ie2[1])
+		return ie2[1] - ie1[1];
+	return r;
+}
+
+static bool is_bss(struct cfg80211_bss *a,
+		   const u8 *bssid,
+		   const u8 *ssid, size_t ssid_len)
+{
+	const u8 *ssidie;
+
+	if (compare_ether_addr(a->bssid, bssid))
+		return false;
+
+	ssidie = find_ie(WLAN_EID_SSID,
+			 a->information_elements,
+			 a->len_information_elements);
+	if (!ssidie)
+		return false;
+	if (ssidie[1] != ssid_len)
+		return false;
+	return memcmp(ssidie + 2, ssid, ssid_len) == 0;
+}
+
+static bool is_mesh(struct cfg80211_bss *a,
+		    const u8 *meshid, size_t meshidlen,
+		    const u8 *meshcfg)
+{
+	const u8 *ie;
+
+	if (!is_zero_ether_addr(a->bssid))
+		return false;
+
+	ie = find_ie(WLAN_EID_MESH_ID,
+		     a->information_elements,
+		     a->len_information_elements);
+	if (!ie)
+		return false;
+	if (ie[1] != meshidlen)
+		return false;
+	if (memcmp(ie + 2, meshid, meshidlen))
+		return false;
+
+	ie = find_ie(WLAN_EID_MESH_CONFIG,
+		     a->information_elements,
+		     a->len_information_elements);
+	if (ie[1] != IEEE80211_MESH_CONFIG_LEN)
+		return false;
+
+	/*
+	 * Ignore mesh capability (last two bytes of the IE) when
+	 * comparing since that may differ between stations taking
+	 * part in the same mesh.
+	 */
+	return memcmp(ie + 2, meshcfg, IEEE80211_MESH_CONFIG_LEN - 2) == 0;
+}
+
+static int cmp_bss(struct cfg80211_bss *a,
+		   struct cfg80211_bss *b)
+{
+	int r;
+
+	if (a->channel != b->channel)
+		return b->channel->center_freq - a->channel->center_freq;
+
+	r = memcmp(a->bssid, b->bssid, ETH_ALEN);
+	if (r)
+		return r;
+
+	if (is_zero_ether_addr(a->bssid)) {
+		r = cmp_ies(WLAN_EID_MESH_ID,
+			    a->information_elements,
+			    a->len_information_elements,
+			    b->information_elements,
+			    b->len_information_elements);
+		if (r)
+			return r;
+		return cmp_ies(WLAN_EID_MESH_CONFIG,
+			       a->information_elements,
+			       a->len_information_elements,
+			       b->information_elements,
+			       b->len_information_elements);
+	}
+
+	return cmp_ies(WLAN_EID_SSID,
+		       a->information_elements,
+		       a->len_information_elements,
+		       b->information_elements,
+		       b->len_information_elements);
+}
+
+struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
+				      struct ieee80211_channel *channel,
+				      const u8 *bssid,
+				      const u8 *ssid, size_t ssid_len)
+{
+	struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy);
+	struct cfg80211_internal_bss *bss, *res = NULL;
+
+	spin_lock_bh(&dev->bss_lock);
+
+	list_for_each_entry(bss, &dev->bss_list, list) {
+		if (channel && bss->pub.channel != channel)
+			continue;
+		if (is_bss(&bss->pub, bssid, ssid, ssid_len)) {
+			res = bss;
+			kref_get(&res->ref);
+			break;
+		}
+	}
+
+	spin_unlock_bh(&dev->bss_lock);
+	if (!res)
+		return NULL;
+	return &res->pub;
+}
+EXPORT_SYMBOL(cfg80211_get_bss);
+
+struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
+				       struct ieee80211_channel *channel,
+				       const u8 *meshid, size_t meshidlen,
+				       const u8 *meshcfg)
+{
+	struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy);
+	struct cfg80211_internal_bss *bss, *res = NULL;
+
+	spin_lock_bh(&dev->bss_lock);
+
+	list_for_each_entry(bss, &dev->bss_list, list) {
+		if (channel && bss->pub.channel != channel)
+			continue;
+		if (is_mesh(&bss->pub, meshid, meshidlen, meshcfg)) {
+			res = bss;
+			kref_get(&res->ref);
+			break;
+		}
+	}
+
+	spin_unlock_bh(&dev->bss_lock);
+	if (!res)
+		return NULL;
+	return &res->pub;
+}
+EXPORT_SYMBOL(cfg80211_get_mesh);
+
+
+static void rb_insert_bss(struct cfg80211_registered_device *dev,
+			  struct cfg80211_internal_bss *bss)
+{
+	struct rb_node **p = &dev->bss_tree.rb_node;
+	struct rb_node *parent = NULL;
+	struct cfg80211_internal_bss *tbss;
+	int cmp;
+
+	while (*p) {
+		parent = *p;
+		tbss = rb_entry(parent, struct cfg80211_internal_bss, rbn);
+
+		cmp = cmp_bss(&bss->pub, &tbss->pub);
+
+		if (WARN_ON(!cmp)) {
+			/* will sort of leak this BSS */
+			return;
+		}
+
+		if (cmp < 0)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+
+	rb_link_node(&bss->rbn, parent, p);
+	rb_insert_color(&bss->rbn, &dev->bss_tree);
+}
+
+static struct cfg80211_internal_bss *
+rb_find_bss(struct cfg80211_registered_device *dev,
+	    struct cfg80211_internal_bss *res)
+{
+	struct rb_node *n = dev->bss_tree.rb_node;
+	struct cfg80211_internal_bss *bss;
+	int r;
+
+	while (n) {
+		bss = rb_entry(n, struct cfg80211_internal_bss, rbn);
+		r = cmp_bss(&res->pub, &bss->pub);
+
+		if (r == 0)
+			return bss;
+		else if (r < 0)
+			n = n->rb_left;
+		else
+			n = n->rb_right;
+	}
+
+	return NULL;
+}
+
+static struct cfg80211_internal_bss *
+cfg80211_bss_update(struct cfg80211_registered_device *dev,
+		    struct cfg80211_internal_bss *res,
+		    bool overwrite)
+{
+	struct cfg80211_internal_bss *found = NULL;
+	const u8 *meshid, *meshcfg;
+
+	/*
+	 * The reference to "res" is donated to this function.
+	 */
+
+	if (WARN_ON(!res->pub.channel)) {
+		kref_put(&res->ref, bss_release);
+		return NULL;
+	}
+
+	res->ts = jiffies;
+
+	if (is_zero_ether_addr(res->pub.bssid)) {
+		/* must be mesh, verify */
+		meshid = find_ie(WLAN_EID_MESH_ID, res->pub.information_elements,
+				 res->pub.len_information_elements);
+		meshcfg = find_ie(WLAN_EID_MESH_CONFIG,
+				  res->pub.information_elements,
+				  res->pub.len_information_elements);
+		if (!meshid || !meshcfg ||
+		    meshcfg[1] != IEEE80211_MESH_CONFIG_LEN) {
+			/* bogus mesh */
+			kref_put(&res->ref, bss_release);
+			return NULL;
+		}
+	}
+
+	spin_lock_bh(&dev->bss_lock);
+
+	found = rb_find_bss(dev, res);
+
+	if (found && overwrite) {
+		list_replace(&found->list, &res->list);
+		rb_replace_node(&found->rbn, &res->rbn,
+				&dev->bss_tree);
+		kref_put(&found->ref, bss_release);
+		found = res;
+	} else if (found) {
+		kref_get(&found->ref);
+		found->pub.beacon_interval = res->pub.beacon_interval;
+		found->pub.tsf = res->pub.tsf;
+		found->pub.signal = res->pub.signal;
+		found->pub.signal_type = res->pub.signal_type;
+		found->pub.capability = res->pub.capability;
+		found->ts = res->ts;
+		kref_put(&res->ref, bss_release);
+	} else {
+		/* this "consumes" the reference */
+		list_add_tail(&res->list, &dev->bss_list);
+		rb_insert_bss(dev, res);
+		found = res;
+	}
+
+	dev->bss_generation++;
+	spin_unlock_bh(&dev->bss_lock);
+
+	kref_get(&found->ref);
+	return found;
+}
+
+struct cfg80211_bss *
+cfg80211_inform_bss_frame(struct wiphy *wiphy,
+			  struct ieee80211_channel *channel,
+			  struct ieee80211_mgmt *mgmt, size_t len,
+			  s32 signal, enum cfg80211_signal_type sigtype,
+			  gfp_t gfp)
+{
+	struct cfg80211_internal_bss *res;
+	size_t ielen = len - offsetof(struct ieee80211_mgmt,
+				      u.probe_resp.variable);
+	bool overwrite;
+	size_t privsz = wiphy->bss_priv_size;
+
+	if (WARN_ON(sigtype == NL80211_BSS_SIGNAL_UNSPEC &&
+	            (signal < 0 || signal > 100)))
+		return NULL;
+
+	if (WARN_ON(!mgmt || !wiphy ||
+		    len < offsetof(struct ieee80211_mgmt, u.probe_resp.variable)))
+		return NULL;
+
+	res = kzalloc(sizeof(*res) + privsz + ielen, gfp);
+	if (!res)
+		return NULL;
+
+	memcpy(res->pub.bssid, mgmt->bssid, ETH_ALEN);
+	res->pub.channel = channel;
+	res->pub.signal_type = sigtype;
+	res->pub.signal = signal;
+	res->pub.tsf = le64_to_cpu(mgmt->u.probe_resp.timestamp);
+	res->pub.beacon_interval = le16_to_cpu(mgmt->u.probe_resp.beacon_int);
+	res->pub.capability = le16_to_cpu(mgmt->u.probe_resp.capab_info);
+	/* point to after the private area */
+	res->pub.information_elements = (u8 *)res + sizeof(*res) + privsz;
+	memcpy(res->pub.information_elements, mgmt->u.probe_resp.variable, ielen);
+	res->pub.len_information_elements = ielen;
+
+	kref_init(&res->ref);
+
+	overwrite = ieee80211_is_probe_resp(mgmt->frame_control);
+
+	res = cfg80211_bss_update(wiphy_to_dev(wiphy), res, overwrite);
+	if (!res)
+		return NULL;
+
+	/* cfg80211_bss_update gives us a referenced result */
+	return &res->pub;
+}
+EXPORT_SYMBOL(cfg80211_inform_bss_frame);
+
+void cfg80211_put_bss(struct cfg80211_bss *pub)
+{
+	struct cfg80211_internal_bss *bss;
+
+	if (!pub)
+		return;
+
+	bss = container_of(pub, struct cfg80211_internal_bss, pub);
+	kref_put(&bss->ref, bss_release);
+}
+EXPORT_SYMBOL(cfg80211_put_bss);
+
+#ifdef CONFIG_WIRELESS_EXT
+int cfg80211_wext_siwscan(struct net_device *dev,
+			  struct iw_request_info *info,
+			  union iwreq_data *wrqu, char *extra)
+{
+	struct cfg80211_registered_device *rdev;
+	struct wiphy *wiphy;
+	struct iw_scan_req *wreq = NULL;
+	struct cfg80211_scan_request *creq;
+	int i, err, n_channels = 0;
+	enum ieee80211_band band;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	rdev = cfg80211_get_dev_from_ifindex(dev->ifindex);
+
+	if (IS_ERR(rdev))
+		return PTR_ERR(rdev);
+
+	if (rdev->scan_req) {
+		err = -EBUSY;
+		goto out;
+	}
+
+	wiphy = &rdev->wiphy;
+
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++)
+		if (wiphy->bands[band])
+			n_channels += wiphy->bands[band]->n_channels;
+
+	creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
+		       n_channels * sizeof(void *),
+		       GFP_ATOMIC);
+	if (!creq) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	creq->wiphy = wiphy;
+	creq->ifidx = dev->ifindex;
+	creq->ssids = (void *)(creq + 1);
+	creq->channels = (void *)(creq->ssids + 1);
+	creq->n_channels = n_channels;
+	creq->n_ssids = 1;
+
+	/* all channels */
+	i = 0;
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		int j;
+		if (!wiphy->bands[band])
+			continue;
+		for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
+			creq->channels[i] = &wiphy->bands[band]->channels[j];
+			i++;
+		}
+	}
+
+	/* translate scan request */
+	if (wrqu->data.length == sizeof(struct iw_scan_req)) {
+		wreq = (struct iw_scan_req *)extra;
+
+		if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
+			if (wreq->essid_len > IEEE80211_MAX_SSID_LEN)
+				return -EINVAL;
+			memcpy(creq->ssids[0].ssid, wreq->essid, wreq->essid_len);
+			creq->ssids[0].ssid_len = wreq->essid_len;
+		}
+		if (wreq->scan_type == IW_SCAN_TYPE_PASSIVE)
+			creq->n_ssids = 0;
+	}
+
+	rdev->scan_req = creq;
+	err = rdev->ops->scan(wiphy, dev, creq);
+	if (err) {
+		rdev->scan_req = NULL;
+		kfree(creq);
+	}
+ out:
+	cfg80211_put_dev(rdev);
+	return err;
+}
+EXPORT_SYMBOL(cfg80211_wext_siwscan);
+
+static void ieee80211_scan_add_ies(struct iw_request_info *info,
+				   struct cfg80211_bss *bss,
+				   char **current_ev, char *end_buf)
+{
+	u8 *pos, *end, *next;
+	struct iw_event iwe;
+
+	if (!bss->information_elements ||
+	    !bss->len_information_elements)
+		return;
+
+	/*
+	 * If needed, fragment the IEs buffer (at IE boundaries) into short
+	 * enough fragments to fit into IW_GENERIC_IE_MAX octet messages.
+	 */
+	pos = bss->information_elements;
+	end = pos + bss->len_information_elements;
+
+	while (end - pos > IW_GENERIC_IE_MAX) {
+		next = pos + 2 + pos[1];
+		while (next + 2 + next[1] - pos < IW_GENERIC_IE_MAX)
+			next = next + 2 + next[1];
+
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVGENIE;
+		iwe.u.data.length = next - pos;
+		*current_ev = iwe_stream_add_point(info, *current_ev,
+						   end_buf, &iwe, pos);
+
+		pos = next;
+	}
+
+	if (end > pos) {
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVGENIE;
+		iwe.u.data.length = end - pos;
+		*current_ev = iwe_stream_add_point(info, *current_ev,
+						   end_buf, &iwe, pos);
+	}
+}
+
+
+static char *
+ieee80211_bss(struct iw_request_info *info,
+		      struct cfg80211_internal_bss *bss,
+		      char *current_ev, char *end_buf)
+{
+	struct iw_event iwe;
+	u8 *buf, *cfg, *p;
+	u8 *ie = bss->pub.information_elements;
+	int rem = bss->pub.len_information_elements, i;
+	bool ismesh = false;
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWAP;
+	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
+	memcpy(iwe.u.ap_addr.sa_data, bss->pub.bssid, ETH_ALEN);
+	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+					  IW_EV_ADDR_LEN);
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWFREQ;
+	iwe.u.freq.m = ieee80211_frequency_to_channel(bss->pub.channel->center_freq);
+	iwe.u.freq.e = 0;
+	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+					  IW_EV_FREQ_LEN);
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWFREQ;
+	iwe.u.freq.m = bss->pub.channel->center_freq;
+	iwe.u.freq.e = 6;
+	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
+					  IW_EV_FREQ_LEN);
+
+	if (bss->pub.signal_type != CFG80211_SIGNAL_TYPE_NONE) {
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVQUAL;
+		iwe.u.qual.updated = IW_QUAL_LEVEL_UPDATED |
+				     IW_QUAL_NOISE_INVALID |
+				     IW_QUAL_QUAL_INVALID;
+		switch (bss->pub.signal_type) {
+		case CFG80211_SIGNAL_TYPE_MBM:
+			iwe.u.qual.level = bss->pub.signal / 100;
+			iwe.u.qual.updated |= IW_QUAL_DBM;
+			break;
+		case CFG80211_SIGNAL_TYPE_UNSPEC:
+			iwe.u.qual.level = bss->pub.signal;
+			break;
+		default:
+			/* not reached */
+			break;
+		}
+		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
+						  &iwe, IW_EV_QUAL_LEN);
+	}
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWENCODE;
+	if (bss->pub.capability & WLAN_CAPABILITY_PRIVACY)
+		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
+	else
+		iwe.u.data.flags = IW_ENCODE_DISABLED;
+	iwe.u.data.length = 0;
+	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+					  &iwe, "");
+
+	while (rem >= 2) {
+		/* invalid data */
+		if (ie[1] > rem - 2)
+			break;
+
+		switch (ie[0]) {
+		case WLAN_EID_SSID:
+			memset(&iwe, 0, sizeof(iwe));
+			iwe.cmd = SIOCGIWESSID;
+			iwe.u.data.length = ie[1];
+			iwe.u.data.flags = 1;
+			current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+							  &iwe, ie + 2);
+			break;
+		case WLAN_EID_MESH_ID:
+			memset(&iwe, 0, sizeof(iwe));
+			iwe.cmd = SIOCGIWESSID;
+			iwe.u.data.length = ie[1];
+			iwe.u.data.flags = 1;
+			current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+							  &iwe, ie + 2);
+			break;
+		case WLAN_EID_MESH_CONFIG:
+			ismesh = true;
+			if (ie[1] != IEEE80211_MESH_CONFIG_LEN)
+				break;
+			buf = kmalloc(50, GFP_ATOMIC);
+			if (!buf)
+				break;
+			cfg = ie + 2;
+			memset(&iwe, 0, sizeof(iwe));
+			iwe.cmd = IWEVCUSTOM;
+			sprintf(buf, "Mesh network (version %d)", cfg[0]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Path Selection Protocol ID: "
+				"0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
+							cfg[4]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Path Selection Metric ID: "
+				"0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
+							cfg[8]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Congestion Control Mode ID: "
+				"0x%02X%02X%02X%02X", cfg[9], cfg[10],
+							cfg[11], cfg[12]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Channel Precedence: "
+				"0x%02X%02X%02X%02X", cfg[13], cfg[14],
+							cfg[15], cfg[16]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(info, current_ev,
+							  end_buf,
+							  &iwe, buf);
+			kfree(buf);
+			break;
+		case WLAN_EID_SUPP_RATES:
+		case WLAN_EID_EXT_SUPP_RATES:
+			/* display all supported rates in readable format */
+			p = current_ev + iwe_stream_lcp_len(info);
+
+			memset(&iwe, 0, sizeof(iwe));
+			iwe.cmd = SIOCGIWRATE;
+			/* Those two flags are ignored... */
+			iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
+
+			for (i = 0; i < ie[1]; i++) {
+				iwe.u.bitrate.value =
+					((ie[i + 2] & 0x7f) * 500000);
+				p = iwe_stream_add_value(info, current_ev, p,
+						end_buf, &iwe, IW_EV_PARAM_LEN);
+			}
+			current_ev = p;
+			break;
+		}
+		rem -= ie[1] + 2;
+		ie += ie[1] + 2;
+	}
+
+	if (bss->pub.capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
+	    || ismesh) {
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = SIOCGIWMODE;
+		if (ismesh)
+			iwe.u.mode = IW_MODE_MESH;
+		else if (bss->pub.capability & WLAN_CAPABILITY_ESS)
+			iwe.u.mode = IW_MODE_MASTER;
+		else
+			iwe.u.mode = IW_MODE_ADHOC;
+		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
+						  &iwe, IW_EV_UINT_LEN);
+	}
+
+	buf = kmalloc(30, GFP_ATOMIC);
+	if (buf) {
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVCUSTOM;
+		sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->pub.tsf));
+		iwe.u.data.length = strlen(buf);
+		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
+						  &iwe, buf);
+		memset(&iwe, 0, sizeof(iwe));
+		iwe.cmd = IWEVCUSTOM;
+		sprintf(buf, " Last beacon: %dms ago",
+			jiffies_to_msecs(jiffies - bss->ts));
+		iwe.u.data.length = strlen(buf);
+		current_ev = iwe_stream_add_point(info, current_ev,
+						  end_buf, &iwe, buf);
+		kfree(buf);
+	}
+
+	ieee80211_scan_add_ies(info, &bss->pub, &current_ev, end_buf);
+
+	return current_ev;
+}
+
+
+static int ieee80211_scan_results(struct cfg80211_registered_device *dev,
+				  struct iw_request_info *info,
+				  char *buf, size_t len)
+{
+	char *current_ev = buf;
+	char *end_buf = buf + len;
+	struct cfg80211_internal_bss *bss;
+
+	spin_lock_bh(&dev->bss_lock);
+	cfg80211_bss_expire(dev);
+
+	list_for_each_entry(bss, &dev->bss_list, list) {
+		if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
+			spin_unlock_bh(&dev->bss_lock);
+			return -E2BIG;
+		}
+		current_ev = ieee80211_bss(info, bss,
+						   current_ev, end_buf);
+	}
+	spin_unlock_bh(&dev->bss_lock);
+	return current_ev - buf;
+}
+
+
+int cfg80211_wext_giwscan(struct net_device *dev,
+			  struct iw_request_info *info,
+			  struct iw_point *data, char *extra)
+{
+	struct cfg80211_registered_device *rdev;
+	int res;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	rdev = cfg80211_get_dev_from_ifindex(dev->ifindex);
+
+	if (IS_ERR(rdev))
+		return PTR_ERR(rdev);
+
+	if (rdev->scan_req) {
+		res = -EAGAIN;
+		goto out;
+	}
+
+	res = ieee80211_scan_results(rdev, info, extra, data->length);
+	data->length = 0;
+	if (res >= 0) {
+		data->length = res;
+		res = 0;
+	}
+
+ out:
+	cfg80211_put_dev(rdev);
+	return res;
+}
+EXPORT_SYMBOL(cfg80211_wext_giwscan);
+#endif
-- 
cgit v1.2.3


From 78c1c7e109f1f14e7c18f290c4ebc58da220c7ba Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 10 Feb 2009 21:25:57 +0100
Subject: cfg80211: free_priv for BSS info

When cfg80211 users have their own allocated data in the per-BSS
private data, they will need to free this when the BSS struct is
destroyed. Add a free_priv method and fix one place where the BSS
was kfree'd rather than released properly.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h | 2 ++
 net/wireless/core.c    | 2 +-
 net/wireless/scan.c    | 2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 09a0b268e5cf..b514abcc2b93 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -567,6 +567,7 @@ enum cfg80211_signal_type {
  * @len_information_elements: total length of the information elements
  * @signal: signal strength value
  * @signal_type: signal type
+ * @free_priv: function pointer to free private data
  * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
  */
 struct cfg80211_bss {
@@ -582,6 +583,7 @@ struct cfg80211_bss {
 	s32 signal;
 	enum cfg80211_signal_type signal_type;
 
+	void (*free_priv)(struct cfg80211_bss *bss);
 	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
 };
 
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 3cccd1390cea..0668b2bfc1da 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -376,7 +376,7 @@ void cfg80211_dev_free(struct cfg80211_registered_device *drv)
 	mutex_destroy(&drv->mtx);
 	mutex_destroy(&drv->devlist_mtx);
 	list_for_each_entry_safe(scan, tmp, &drv->bss_list, list)
-		kfree(scan);
+		cfg80211_put_bss(&scan->pub);
 	kfree(drv);
 }
 
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 009d12810c55..ec148f68a62b 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -56,6 +56,8 @@ static void bss_release(struct kref *ref)
 	struct cfg80211_internal_bss *bss;
 
 	bss = container_of(ref, struct cfg80211_internal_bss, ref);
+	if (bss->pub.free_priv)
+		bss->pub.free_priv(&bss->pub);
 	kfree(bss);
 }
 
-- 
cgit v1.2.3


From d491af19db3adcc1eb1653e60a427fb4df36f361 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 10 Feb 2009 21:25:58 +0100
Subject: cfg80211: allow users to request removing a BSS

This patch introduces cfg80211_unlink_bss, a function to
allow a driver to remove a BSS from the internal list and
make it not show up in scan results any more -- this is
to be used when the driver detects that the BSS is no
longer available.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h | 11 +++++++++++
 net/wireless/scan.c    | 21 +++++++++++++++++++++
 2 files changed, 32 insertions(+)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index b514abcc2b93..f1d21570e6cb 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -791,5 +791,16 @@ struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
 				       const u8 *meshid, size_t meshidlen,
 				       const u8 *meshcfg);
 void cfg80211_put_bss(struct cfg80211_bss *bss);
+/**
+ * cfg80211_unlink_bss - unlink BSS from internal data structures
+ * @wiphy: the wiphy
+ * @bss: the bss to remove
+ *
+ * This function removes the given BSS from the internal data structures
+ * thereby making it no longer show up in scan results etc. Use this
+ * function when you detect a BSS is gone. Normally BSSes will also time
+ * out, so it is not necessary to use this function at all.
+ */
+void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
 
 #endif /* __NET_CFG80211_H */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index ec148f68a62b..aacccc9ab6ca 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -432,6 +432,27 @@ void cfg80211_put_bss(struct cfg80211_bss *pub)
 }
 EXPORT_SYMBOL(cfg80211_put_bss);
 
+void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
+{
+	struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy);
+	struct cfg80211_internal_bss *bss;
+
+	if (WARN_ON(!pub))
+		return;
+
+	bss = container_of(pub, struct cfg80211_internal_bss, pub);
+
+	spin_lock_bh(&dev->bss_lock);
+
+	list_del(&bss->list);
+	rb_erase(&bss->rbn, &dev->bss_tree);
+
+	spin_unlock_bh(&dev->bss_lock);
+
+	kref_put(&bss->ref, bss_release);
+}
+EXPORT_SYMBOL(cfg80211_unlink_bss);
+
 #ifdef CONFIG_WIRELESS_EXT
 int cfg80211_wext_siwscan(struct net_device *dev,
 			  struct iw_request_info *info,
-- 
cgit v1.2.3


From 79420f09e76e8e1dd1149d6ce9c20e06cbb5802a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 10 Feb 2009 21:25:59 +0100
Subject: cfg80211: add more flexible BSS lookup

Add a more flexible BSS lookup function so that mac80211 or
other drivers can actually use this for getting the BSS to
connect to.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h | 12 +++++++++++-
 net/wireless/scan.c    | 10 ++++++++--
 2 files changed, 19 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f1d21570e6cb..c0d1f5b708c5 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -785,7 +785,17 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 				      struct ieee80211_channel *channel,
 				      const u8 *bssid,
-				      const u8 *ssid, size_t ssid_len);
+				      const u8 *ssid, size_t ssid_len,
+				      u16 capa_mask, u16 capa_val);
+static inline struct cfg80211_bss *
+cfg80211_get_ibss(struct wiphy *wiphy,
+		  struct ieee80211_channel *channel,
+		  const u8 *ssid, size_t ssid_len)
+{
+	return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
+				WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
+}
+
 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
 				       struct ieee80211_channel *channel,
 				       const u8 *meshid, size_t meshidlen,
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index aacccc9ab6ca..b1893c863b97 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -116,9 +116,12 @@ static bool is_bss(struct cfg80211_bss *a,
 {
 	const u8 *ssidie;
 
-	if (compare_ether_addr(a->bssid, bssid))
+	if (bssid && compare_ether_addr(a->bssid, bssid))
 		return false;
 
+	if (!ssid)
+		return true;
+
 	ssidie = find_ie(WLAN_EID_SSID,
 			 a->information_elements,
 			 a->len_information_elements);
@@ -199,7 +202,8 @@ static int cmp_bss(struct cfg80211_bss *a,
 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 				      struct ieee80211_channel *channel,
 				      const u8 *bssid,
-				      const u8 *ssid, size_t ssid_len)
+				      const u8 *ssid, size_t ssid_len,
+				      u16 capa_mask, u16 capa_val)
 {
 	struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy);
 	struct cfg80211_internal_bss *bss, *res = NULL;
@@ -207,6 +211,8 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 	spin_lock_bh(&dev->bss_lock);
 
 	list_for_each_entry(bss, &dev->bss_list, list) {
+		if ((bss->pub.capability & capa_mask) != capa_val)
+			continue;
 		if (channel && bss->pub.channel != channel)
 			continue;
 		if (is_bss(&bss->pub, bssid, ssid, ssid_len)) {
-- 
cgit v1.2.3


From 35c26c2cf6a6a2d1c48add732d8ba002bd90784c Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Sat, 14 Feb 2009 22:56:56 -0800
Subject: rndis: remove private wrapper of __constant_cpu_to_le32

Use cpu_to_le32 directly as it handles constant folding now, replace direct
uses of __constant_cpu_to_{endian} as well.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/rndis_host.c      | 25 +++++------
 drivers/net/wireless/rndis_wlan.c | 90 +++++++++++++++++++-------------------
 drivers/usb/gadget/rndis.c        | 92 +++++++++++++++++++--------------------
 include/linux/usb/rndis_host.h    | 85 +++++++++++++++++-------------------
 4 files changed, 143 insertions(+), 149 deletions(-)

(limited to 'include')

diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index bcd858c567e0..b7f763e1298c 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -169,7 +169,7 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
 				struct rndis_keepalive_c *msg = (void *)buf;
 
 				msg->msg_type = RNDIS_MSG_KEEPALIVE_C;
-				msg->msg_len = ccpu2(sizeof *msg);
+				msg->msg_len = cpu_to_le32(sizeof *msg);
 				msg->status = RNDIS_STATUS_SUCCESS;
 				retval = usb_control_msg(dev->udev,
 					usb_sndctrlpipe(dev->udev, 0),
@@ -237,7 +237,7 @@ static int rndis_query(struct usbnet *dev, struct usb_interface *intf,
 	u.get->msg_len = cpu_to_le32(sizeof *u.get + in_len);
 	u.get->oid = oid;
 	u.get->len = cpu_to_le32(in_len);
-	u.get->offset = ccpu2(20);
+	u.get->offset = cpu_to_le32(20);
 
 	retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
 	if (unlikely(retval < 0)) {
@@ -297,9 +297,9 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
 		goto fail;
 
 	u.init->msg_type = RNDIS_MSG_INIT;
-	u.init->msg_len = ccpu2(sizeof *u.init);
-	u.init->major_version = ccpu2(1);
-	u.init->minor_version = ccpu2(0);
+	u.init->msg_len = cpu_to_le32(sizeof *u.init);
+	u.init->major_version = cpu_to_le32(1);
+	u.init->minor_version = cpu_to_le32(0);
 
 	/* max transfer (in spec) is 0x4000 at full speed, but for
 	 * TX we'll stick to one Ethernet packet plus RNDIS framing.
@@ -403,10 +403,10 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
 	/* set a nonzero filter to enable data transfers */
 	memset(u.set, 0, sizeof *u.set);
 	u.set->msg_type = RNDIS_MSG_SET;
-	u.set->msg_len = ccpu2(4 + sizeof *u.set);
+	u.set->msg_len = cpu_to_le32(4 + sizeof *u.set);
 	u.set->oid = OID_GEN_CURRENT_PACKET_FILTER;
-	u.set->len = ccpu2(4);
-	u.set->offset = ccpu2((sizeof *u.set) - 8);
+	u.set->len = cpu_to_le32(4);
+	u.set->offset = cpu_to_le32((sizeof *u.set) - 8);
 	*(__le32 *)(u.buf + sizeof *u.set) = RNDIS_DEFAULT_FILTER;
 
 	retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
@@ -423,7 +423,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
 halt_fail_and_release:
 	memset(u.halt, 0, sizeof *u.halt);
 	u.halt->msg_type = RNDIS_MSG_HALT;
-	u.halt->msg_len = ccpu2(sizeof *u.halt);
+	u.halt->msg_len = cpu_to_le32(sizeof *u.halt);
 	(void) rndis_command(dev, (void *)u.halt, CONTROL_BUFFER_SIZE);
 fail_and_release:
 	usb_set_intfdata(info->data, NULL);
@@ -448,7 +448,7 @@ void rndis_unbind(struct usbnet *dev, struct usb_interface *intf)
 	halt = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
 	if (halt) {
 		halt->msg_type = RNDIS_MSG_HALT;
-		halt->msg_len = ccpu2(sizeof *halt);
+		halt->msg_len = cpu_to_le32(sizeof *halt);
 		(void) rndis_command(dev, (void *)halt, CONTROL_BUFFER_SIZE);
 		kfree(halt);
 	}
@@ -543,7 +543,7 @@ fill:
 	memset(hdr, 0, sizeof *hdr);
 	hdr->msg_type = RNDIS_MSG_PACKET;
 	hdr->msg_len = cpu_to_le32(skb->len);
-	hdr->data_offset = ccpu2(sizeof(*hdr) - 8);
+	hdr->data_offset = cpu_to_le32(sizeof(*hdr) - 8);
 	hdr->data_len = cpu_to_le32(len);
 
 	/* FIXME make the last packet always be short ... */
@@ -562,9 +562,6 @@ static const struct driver_info	rndis_info = {
 	.tx_fixup =	rndis_tx_fixup,
 };
 
-#undef ccpu2
-
-
 /*-------------------------------------------------------------------------*/
 
 static const struct usb_device_id	products [] = {
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index 105f214e21f4..82af21eeb592 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -90,44 +90,44 @@ MODULE_PARM_DESC(workaround_interval,
 
 
 /* various RNDIS OID defs */
-#define OID_GEN_LINK_SPEED			ccpu2(0x00010107)
-#define OID_GEN_RNDIS_CONFIG_PARAMETER		ccpu2(0x0001021b)
-
-#define OID_GEN_XMIT_OK				ccpu2(0x00020101)
-#define OID_GEN_RCV_OK				ccpu2(0x00020102)
-#define OID_GEN_XMIT_ERROR			ccpu2(0x00020103)
-#define OID_GEN_RCV_ERROR			ccpu2(0x00020104)
-#define OID_GEN_RCV_NO_BUFFER			ccpu2(0x00020105)
-
-#define OID_802_3_PERMANENT_ADDRESS		ccpu2(0x01010101)
-#define OID_802_3_CURRENT_ADDRESS		ccpu2(0x01010102)
-#define OID_802_3_MULTICAST_LIST		ccpu2(0x01010103)
-#define OID_802_3_MAXIMUM_LIST_SIZE		ccpu2(0x01010104)
-
-#define OID_802_11_BSSID			ccpu2(0x0d010101)
-#define OID_802_11_SSID				ccpu2(0x0d010102)
-#define OID_802_11_INFRASTRUCTURE_MODE		ccpu2(0x0d010108)
-#define OID_802_11_ADD_WEP			ccpu2(0x0d010113)
-#define OID_802_11_REMOVE_WEP			ccpu2(0x0d010114)
-#define OID_802_11_DISASSOCIATE			ccpu2(0x0d010115)
-#define OID_802_11_AUTHENTICATION_MODE		ccpu2(0x0d010118)
-#define OID_802_11_PRIVACY_FILTER		ccpu2(0x0d010119)
-#define OID_802_11_BSSID_LIST_SCAN		ccpu2(0x0d01011a)
-#define OID_802_11_ENCRYPTION_STATUS		ccpu2(0x0d01011b)
-#define OID_802_11_ADD_KEY			ccpu2(0x0d01011d)
-#define OID_802_11_REMOVE_KEY			ccpu2(0x0d01011e)
-#define OID_802_11_ASSOCIATION_INFORMATION	ccpu2(0x0d01011f)
-#define OID_802_11_PMKID			ccpu2(0x0d010123)
-#define OID_802_11_NETWORK_TYPES_SUPPORTED	ccpu2(0x0d010203)
-#define OID_802_11_NETWORK_TYPE_IN_USE		ccpu2(0x0d010204)
-#define OID_802_11_TX_POWER_LEVEL		ccpu2(0x0d010205)
-#define OID_802_11_RSSI				ccpu2(0x0d010206)
-#define OID_802_11_RSSI_TRIGGER			ccpu2(0x0d010207)
-#define OID_802_11_FRAGMENTATION_THRESHOLD	ccpu2(0x0d010209)
-#define OID_802_11_RTS_THRESHOLD		ccpu2(0x0d01020a)
-#define OID_802_11_SUPPORTED_RATES		ccpu2(0x0d01020e)
-#define OID_802_11_CONFIGURATION		ccpu2(0x0d010211)
-#define OID_802_11_BSSID_LIST			ccpu2(0x0d010217)
+#define OID_GEN_LINK_SPEED			cpu_to_le32(0x00010107)
+#define OID_GEN_RNDIS_CONFIG_PARAMETER		cpu_to_le32(0x0001021b)
+
+#define OID_GEN_XMIT_OK				cpu_to_le32(0x00020101)
+#define OID_GEN_RCV_OK				cpu_to_le32(0x00020102)
+#define OID_GEN_XMIT_ERROR			cpu_to_le32(0x00020103)
+#define OID_GEN_RCV_ERROR			cpu_to_le32(0x00020104)
+#define OID_GEN_RCV_NO_BUFFER			cpu_to_le32(0x00020105)
+
+#define OID_802_3_PERMANENT_ADDRESS		cpu_to_le32(0x01010101)
+#define OID_802_3_CURRENT_ADDRESS		cpu_to_le32(0x01010102)
+#define OID_802_3_MULTICAST_LIST		cpu_to_le32(0x01010103)
+#define OID_802_3_MAXIMUM_LIST_SIZE		cpu_to_le32(0x01010104)
+
+#define OID_802_11_BSSID			cpu_to_le32(0x0d010101)
+#define OID_802_11_SSID				cpu_to_le32(0x0d010102)
+#define OID_802_11_INFRASTRUCTURE_MODE		cpu_to_le32(0x0d010108)
+#define OID_802_11_ADD_WEP			cpu_to_le32(0x0d010113)
+#define OID_802_11_REMOVE_WEP			cpu_to_le32(0x0d010114)
+#define OID_802_11_DISASSOCIATE			cpu_to_le32(0x0d010115)
+#define OID_802_11_AUTHENTICATION_MODE		cpu_to_le32(0x0d010118)
+#define OID_802_11_PRIVACY_FILTER		cpu_to_le32(0x0d010119)
+#define OID_802_11_BSSID_LIST_SCAN		cpu_to_le32(0x0d01011a)
+#define OID_802_11_ENCRYPTION_STATUS		cpu_to_le32(0x0d01011b)
+#define OID_802_11_ADD_KEY			cpu_to_le32(0x0d01011d)
+#define OID_802_11_REMOVE_KEY			cpu_to_le32(0x0d01011e)
+#define OID_802_11_ASSOCIATION_INFORMATION	cpu_to_le32(0x0d01011f)
+#define OID_802_11_PMKID			cpu_to_le32(0x0d010123)
+#define OID_802_11_NETWORK_TYPES_SUPPORTED	cpu_to_le32(0x0d010203)
+#define OID_802_11_NETWORK_TYPE_IN_USE		cpu_to_le32(0x0d010204)
+#define OID_802_11_TX_POWER_LEVEL		cpu_to_le32(0x0d010205)
+#define OID_802_11_RSSI				cpu_to_le32(0x0d010206)
+#define OID_802_11_RSSI_TRIGGER			cpu_to_le32(0x0d010207)
+#define OID_802_11_FRAGMENTATION_THRESHOLD	cpu_to_le32(0x0d010209)
+#define OID_802_11_RTS_THRESHOLD		cpu_to_le32(0x0d01020a)
+#define OID_802_11_SUPPORTED_RATES		cpu_to_le32(0x0d01020e)
+#define OID_802_11_CONFIGURATION		cpu_to_le32(0x0d010211)
+#define OID_802_11_BSSID_LIST			cpu_to_le32(0x0d010217)
 
 
 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
@@ -144,8 +144,8 @@ MODULE_PARM_DESC(workaround_interval,
 
 
 /* codes for "status" field of completion messages */
-#define RNDIS_STATUS_ADAPTER_NOT_READY		ccpu2(0xc0010011)
-#define RNDIS_STATUS_ADAPTER_NOT_OPEN		ccpu2(0xc0010012)
+#define RNDIS_STATUS_ADAPTER_NOT_READY		cpu_to_le32(0xc0010011)
+#define RNDIS_STATUS_ADAPTER_NOT_OPEN		cpu_to_le32(0xc0010012)
 
 
 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
@@ -442,7 +442,7 @@ static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
 
 	memset(u.get, 0, sizeof *u.get);
 	u.get->msg_type = RNDIS_MSG_QUERY;
-	u.get->msg_len = ccpu2(sizeof *u.get);
+	u.get->msg_len = cpu_to_le32(sizeof *u.get);
 	u.get->oid = oid;
 
 	ret = rndis_command(dev, u.header, buflen);
@@ -491,8 +491,8 @@ static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
 	u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
 	u.set->oid = oid;
 	u.set->len = cpu_to_le32(len);
-	u.set->offset = ccpu2(sizeof(*u.set) - 8);
-	u.set->handle = ccpu2(0);
+	u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
+	u.set->handle = cpu_to_le32(0);
 	memcpy(u.buf + sizeof(*u.set), data, len);
 
 	ret = rndis_command(dev, u.header, buflen);
@@ -1630,7 +1630,7 @@ static int rndis_iw_set_scan(struct net_device *dev,
 	devdbg(usbdev, "SIOCSIWSCAN");
 
 	if (wrqu->data.flags == 0) {
-		tmp = ccpu2(1);
+		tmp = cpu_to_le32(1);
 		ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
 								sizeof(tmp));
 		evt.data.flags = 0;
@@ -2428,7 +2428,7 @@ static void rndis_update_wireless_stats(struct work_struct *work)
 		/* Send scan OID. Use of both OIDs is required to get device
 		 * working.
 		 */
-		tmp = ccpu2(1);
+		tmp = cpu_to_le32(1);
 		rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
 								sizeof(tmp));
 
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index 8c26f5ea2b83..d2860a823680 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -63,7 +63,7 @@ MODULE_PARM_DESC (rndis_debug, "enable debugging");
 static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
 
 /* Driver Version */
-static const __le32 rndis_driver_version = __constant_cpu_to_le32 (1);
+static const __le32 rndis_driver_version = cpu_to_le32 (1);
 
 /* Function Prototypes */
 static rndis_resp_t *rndis_add_response (int configNr, u32 length);
@@ -190,7 +190,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 
 	/* response goes here, right after the header */
 	outbuf = (__le32 *) &resp[1];
-	resp->InformationBufferOffset = __constant_cpu_to_le32 (16);
+	resp->InformationBufferOffset = cpu_to_le32 (16);
 
 	net = rndis_per_dev_params[configNr].dev;
 	if (net->get_stats)
@@ -221,7 +221,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 		 * reddite ergo quae sunt Caesaris Caesari
 		 * et quae sunt Dei Deo!
 		 */
-		*outbuf = __constant_cpu_to_le32 (0);
+		*outbuf = cpu_to_le32 (0);
 		retval = 0;
 		break;
 
@@ -256,7 +256,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 			pr_debug("%s: OID_GEN_LINK_SPEED\n", __func__);
 		if (rndis_per_dev_params [configNr].media_state
 				== NDIS_MEDIA_STATE_DISCONNECTED)
-			*outbuf = __constant_cpu_to_le32 (0);
+			*outbuf = cpu_to_le32 (0);
 		else
 			*outbuf = cpu_to_le32 (
 				rndis_per_dev_params [configNr].speed);
@@ -317,7 +317,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 	/* mandatory */
 	case OID_GEN_MAXIMUM_TOTAL_SIZE:
 		pr_debug("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__);
-		*outbuf = __constant_cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
+		*outbuf = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
 		retval = 0;
 		break;
 
@@ -332,7 +332,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 
 	case OID_GEN_PHYSICAL_MEDIUM:
 		pr_debug("%s: OID_GEN_PHYSICAL_MEDIUM\n", __func__);
-		*outbuf = __constant_cpu_to_le32 (0);
+		*outbuf = cpu_to_le32 (0);
 		retval = 0;
 		break;
 
@@ -342,7 +342,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 	 */
 	case OID_GEN_MAC_OPTIONS:		/* from WinME */
 		pr_debug("%s: OID_GEN_MAC_OPTIONS\n", __func__);
-		*outbuf = __constant_cpu_to_le32(
+		*outbuf = cpu_to_le32(
 			  NDIS_MAC_OPTION_RECEIVE_SERIALIZED
 			| NDIS_MAC_OPTION_FULL_DUPLEX);
 		retval = 0;
@@ -431,7 +431,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 	case OID_802_3_MULTICAST_LIST:
 		pr_debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
 		/* Multicast base address only */
-		*outbuf = __constant_cpu_to_le32 (0xE0000000);
+		*outbuf = cpu_to_le32 (0xE0000000);
 		retval = 0;
 		break;
 
@@ -439,7 +439,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 	case OID_802_3_MAXIMUM_LIST_SIZE:
 		pr_debug("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __func__);
 		/* Multicast base address only */
-		*outbuf = __constant_cpu_to_le32 (1);
+		*outbuf = cpu_to_le32 (1);
 		retval = 0;
 		break;
 
@@ -461,14 +461,14 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 	/* mandatory */
 	case OID_802_3_XMIT_ONE_COLLISION:
 		pr_debug("%s: OID_802_3_XMIT_ONE_COLLISION\n", __func__);
-		*outbuf = __constant_cpu_to_le32 (0);
+		*outbuf = cpu_to_le32 (0);
 		retval = 0;
 		break;
 
 	/* mandatory */
 	case OID_802_3_XMIT_MORE_COLLISIONS:
 		pr_debug("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __func__);
-		*outbuf = __constant_cpu_to_le32 (0);
+		*outbuf = cpu_to_le32 (0);
 		retval = 0;
 		break;
 
@@ -572,24 +572,24 @@ static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
 		return -ENOMEM;
 	resp = (rndis_init_cmplt_type *) r->buf;
 
-	resp->MessageType = __constant_cpu_to_le32 (
+	resp->MessageType = cpu_to_le32 (
 			REMOTE_NDIS_INITIALIZE_CMPLT);
-	resp->MessageLength = __constant_cpu_to_le32 (52);
+	resp->MessageLength = cpu_to_le32 (52);
 	resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
-	resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
-	resp->MajorVersion = __constant_cpu_to_le32 (RNDIS_MAJOR_VERSION);
-	resp->MinorVersion = __constant_cpu_to_le32 (RNDIS_MINOR_VERSION);
-	resp->DeviceFlags = __constant_cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
-	resp->Medium = __constant_cpu_to_le32 (RNDIS_MEDIUM_802_3);
-	resp->MaxPacketsPerTransfer = __constant_cpu_to_le32 (1);
+	resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
+	resp->MajorVersion = cpu_to_le32 (RNDIS_MAJOR_VERSION);
+	resp->MinorVersion = cpu_to_le32 (RNDIS_MINOR_VERSION);
+	resp->DeviceFlags = cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
+	resp->Medium = cpu_to_le32 (RNDIS_MEDIUM_802_3);
+	resp->MaxPacketsPerTransfer = cpu_to_le32 (1);
 	resp->MaxTransferSize = cpu_to_le32 (
 		  params->dev->mtu
 		+ sizeof (struct ethhdr)
 		+ sizeof (struct rndis_packet_msg_type)
 		+ 22);
-	resp->PacketAlignmentFactor = __constant_cpu_to_le32 (0);
-	resp->AFListOffset = __constant_cpu_to_le32 (0);
-	resp->AFListSize = __constant_cpu_to_le32 (0);
+	resp->PacketAlignmentFactor = cpu_to_le32 (0);
+	resp->AFListOffset = cpu_to_le32 (0);
+	resp->AFListSize = cpu_to_le32 (0);
 
 	params->resp_avail(params->v);
 	return 0;
@@ -617,7 +617,7 @@ static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
 		return -ENOMEM;
 	resp = (rndis_query_cmplt_type *) r->buf;
 
-	resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
+	resp->MessageType = cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
 	resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
 
 	if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID),
@@ -626,13 +626,13 @@ static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
 			le32_to_cpu(buf->InformationBufferLength),
 			r)) {
 		/* OID not supported */
-		resp->Status = __constant_cpu_to_le32 (
+		resp->Status = cpu_to_le32 (
 				RNDIS_STATUS_NOT_SUPPORTED);
-		resp->MessageLength = __constant_cpu_to_le32 (sizeof *resp);
-		resp->InformationBufferLength = __constant_cpu_to_le32 (0);
-		resp->InformationBufferOffset = __constant_cpu_to_le32 (0);
+		resp->MessageLength = cpu_to_le32 (sizeof *resp);
+		resp->InformationBufferLength = cpu_to_le32 (0);
+		resp->InformationBufferOffset = cpu_to_le32 (0);
 	} else
-		resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
+		resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
 
 	params->resp_avail(params->v);
 	return 0;
@@ -665,14 +665,14 @@ static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
 	pr_debug("\n");
 #endif
 
-	resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
-	resp->MessageLength = __constant_cpu_to_le32 (16);
+	resp->MessageType = cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
+	resp->MessageLength = cpu_to_le32 (16);
 	resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
 	if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
 			((u8 *) buf) + 8 + BufOffset, BufLength, r))
-		resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
+		resp->Status = cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
 	else
-		resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
+		resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
 
 	params->resp_avail(params->v);
 	return 0;
@@ -689,11 +689,11 @@ static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
 		return -ENOMEM;
 	resp = (rndis_reset_cmplt_type *) r->buf;
 
-	resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
-	resp->MessageLength = __constant_cpu_to_le32 (16);
-	resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
+	resp->MessageType = cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
+	resp->MessageLength = cpu_to_le32 (16);
+	resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
 	/* resent information */
-	resp->AddressingReset = __constant_cpu_to_le32 (1);
+	resp->AddressingReset = cpu_to_le32 (1);
 
 	params->resp_avail(params->v);
 	return 0;
@@ -713,11 +713,11 @@ static int rndis_keepalive_response (int configNr,
 		return -ENOMEM;
 	resp = (rndis_keepalive_cmplt_type *) r->buf;
 
-	resp->MessageType = __constant_cpu_to_le32 (
+	resp->MessageType = cpu_to_le32 (
 			REMOTE_NDIS_KEEPALIVE_CMPLT);
-	resp->MessageLength = __constant_cpu_to_le32 (16);
+	resp->MessageLength = cpu_to_le32 (16);
 	resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
-	resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
+	resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
 
 	params->resp_avail(params->v);
 	return 0;
@@ -742,12 +742,12 @@ static int rndis_indicate_status_msg (int configNr, u32 status)
 		return -ENOMEM;
 	resp = (rndis_indicate_status_msg_type *) r->buf;
 
-	resp->MessageType = __constant_cpu_to_le32 (
+	resp->MessageType = cpu_to_le32 (
 			REMOTE_NDIS_INDICATE_STATUS_MSG);
-	resp->MessageLength = __constant_cpu_to_le32 (20);
+	resp->MessageLength = cpu_to_le32 (20);
 	resp->Status = cpu_to_le32 (status);
-	resp->StatusBufferLength = __constant_cpu_to_le32 (0);
-	resp->StatusBufferOffset = __constant_cpu_to_le32 (0);
+	resp->StatusBufferLength = cpu_to_le32 (0);
+	resp->StatusBufferOffset = cpu_to_le32 (0);
 
 	params->resp_avail(params->v);
 	return 0;
@@ -963,9 +963,9 @@ void rndis_add_hdr (struct sk_buff *skb)
 		return;
 	header = (void *) skb_push (skb, sizeof *header);
 	memset (header, 0, sizeof *header);
-	header->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
+	header->MessageType = cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
 	header->MessageLength = cpu_to_le32(skb->len);
-	header->DataOffset = __constant_cpu_to_le32 (36);
+	header->DataOffset = cpu_to_le32 (36);
 	header->DataLength = cpu_to_le32(skb->len - sizeof *header);
 }
 
@@ -1029,7 +1029,7 @@ int rndis_rm_hdr(struct sk_buff *skb)
 	__le32		*tmp = (void *) skb->data;
 
 	/* MessageType, MessageLength */
-	if (__constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
+	if (cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
 			!= get_unaligned(tmp++))
 		return -EINVAL;
 	tmp++;
diff --git a/include/linux/usb/rndis_host.h b/include/linux/usb/rndis_host.h
index 0a6e6d4b929a..37836b937d97 100644
--- a/include/linux/usb/rndis_host.h
+++ b/include/linux/usb/rndis_host.h
@@ -49,48 +49,45 @@ struct rndis_msg_hdr {
  */
 #define	RNDIS_CONTROL_TIMEOUT_MS	(5 * 1000)
 
-
-#define ccpu2 __constant_cpu_to_le32
-
-#define RNDIS_MSG_COMPLETION	ccpu2(0x80000000)
+#define RNDIS_MSG_COMPLETION	cpu_to_le32(0x80000000)
 
 /* codes for "msg_type" field of rndis messages;
  * only the data channel uses packet messages (maybe batched);
  * everything else goes on the control channel.
  */
-#define RNDIS_MSG_PACKET	ccpu2(0x00000001)	/* 1-N packets */
-#define RNDIS_MSG_INIT		ccpu2(0x00000002)
+#define RNDIS_MSG_PACKET	cpu_to_le32(0x00000001)	/* 1-N packets */
+#define RNDIS_MSG_INIT		cpu_to_le32(0x00000002)
 #define RNDIS_MSG_INIT_C	(RNDIS_MSG_INIT|RNDIS_MSG_COMPLETION)
-#define RNDIS_MSG_HALT		ccpu2(0x00000003)
-#define RNDIS_MSG_QUERY		ccpu2(0x00000004)
+#define RNDIS_MSG_HALT		cpu_to_le32(0x00000003)
+#define RNDIS_MSG_QUERY		cpu_to_le32(0x00000004)
 #define RNDIS_MSG_QUERY_C	(RNDIS_MSG_QUERY|RNDIS_MSG_COMPLETION)
-#define RNDIS_MSG_SET		ccpu2(0x00000005)
+#define RNDIS_MSG_SET		cpu_to_le32(0x00000005)
 #define RNDIS_MSG_SET_C		(RNDIS_MSG_SET|RNDIS_MSG_COMPLETION)
-#define RNDIS_MSG_RESET		ccpu2(0x00000006)
+#define RNDIS_MSG_RESET		cpu_to_le32(0x00000006)
 #define RNDIS_MSG_RESET_C	(RNDIS_MSG_RESET|RNDIS_MSG_COMPLETION)
-#define RNDIS_MSG_INDICATE	ccpu2(0x00000007)
-#define RNDIS_MSG_KEEPALIVE	ccpu2(0x00000008)
+#define RNDIS_MSG_INDICATE	cpu_to_le32(0x00000007)
+#define RNDIS_MSG_KEEPALIVE	cpu_to_le32(0x00000008)
 #define RNDIS_MSG_KEEPALIVE_C	(RNDIS_MSG_KEEPALIVE|RNDIS_MSG_COMPLETION)
 
 /* codes for "status" field of completion messages */
-#define	RNDIS_STATUS_SUCCESS		ccpu2(0x00000000)
-#define	RNDIS_STATUS_FAILURE		ccpu2(0xc0000001)
-#define	RNDIS_STATUS_INVALID_DATA	ccpu2(0xc0010015)
-#define	RNDIS_STATUS_NOT_SUPPORTED	ccpu2(0xc00000bb)
-#define	RNDIS_STATUS_MEDIA_CONNECT	ccpu2(0x4001000b)
-#define	RNDIS_STATUS_MEDIA_DISCONNECT	ccpu2(0x4001000c)
+#define	RNDIS_STATUS_SUCCESS		cpu_to_le32(0x00000000)
+#define	RNDIS_STATUS_FAILURE		cpu_to_le32(0xc0000001)
+#define	RNDIS_STATUS_INVALID_DATA	cpu_to_le32(0xc0010015)
+#define	RNDIS_STATUS_NOT_SUPPORTED	cpu_to_le32(0xc00000bb)
+#define	RNDIS_STATUS_MEDIA_CONNECT	cpu_to_le32(0x4001000b)
+#define	RNDIS_STATUS_MEDIA_DISCONNECT	cpu_to_le32(0x4001000c)
 
 /* codes for OID_GEN_PHYSICAL_MEDIUM */
-#define	RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED	ccpu2(0x00000000)
-#define	RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN	ccpu2(0x00000001)
-#define	RNDIS_PHYSICAL_MEDIUM_CABLE_MODEM	ccpu2(0x00000002)
-#define	RNDIS_PHYSICAL_MEDIUM_PHONE_LINE	ccpu2(0x00000003)
-#define	RNDIS_PHYSICAL_MEDIUM_POWER_LINE	ccpu2(0x00000004)
-#define	RNDIS_PHYSICAL_MEDIUM_DSL		ccpu2(0x00000005)
-#define	RNDIS_PHYSICAL_MEDIUM_FIBRE_CHANNEL	ccpu2(0x00000006)
-#define	RNDIS_PHYSICAL_MEDIUM_1394		ccpu2(0x00000007)
-#define	RNDIS_PHYSICAL_MEDIUM_WIRELESS_WAN	ccpu2(0x00000008)
-#define	RNDIS_PHYSICAL_MEDIUM_MAX		ccpu2(0x00000009)
+#define	RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED	cpu_to_le32(0x00000000)
+#define	RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN	cpu_to_le32(0x00000001)
+#define	RNDIS_PHYSICAL_MEDIUM_CABLE_MODEM	cpu_to_le32(0x00000002)
+#define	RNDIS_PHYSICAL_MEDIUM_PHONE_LINE	cpu_to_le32(0x00000003)
+#define	RNDIS_PHYSICAL_MEDIUM_POWER_LINE	cpu_to_le32(0x00000004)
+#define	RNDIS_PHYSICAL_MEDIUM_DSL		cpu_to_le32(0x00000005)
+#define	RNDIS_PHYSICAL_MEDIUM_FIBRE_CHANNEL	cpu_to_le32(0x00000006)
+#define	RNDIS_PHYSICAL_MEDIUM_1394		cpu_to_le32(0x00000007)
+#define	RNDIS_PHYSICAL_MEDIUM_WIRELESS_WAN	cpu_to_le32(0x00000008)
+#define	RNDIS_PHYSICAL_MEDIUM_MAX		cpu_to_le32(0x00000009)
 
 struct rndis_data_hdr {
 	__le32	msg_type;		/* RNDIS_MSG_PACKET */
@@ -228,24 +225,24 @@ struct rndis_keepalive_c {	/* IN (optionally OUT) */
  * there are gobs more that may optionally be supported.  We'll avoid as much
  * of that mess as possible.
  */
-#define OID_802_3_PERMANENT_ADDRESS	ccpu2(0x01010101)
-#define OID_GEN_MAXIMUM_FRAME_SIZE	ccpu2(0x00010106)
-#define OID_GEN_CURRENT_PACKET_FILTER	ccpu2(0x0001010e)
-#define OID_GEN_PHYSICAL_MEDIUM		ccpu2(0x00010202)
+#define OID_802_3_PERMANENT_ADDRESS	cpu_to_le32(0x01010101)
+#define OID_GEN_MAXIMUM_FRAME_SIZE	cpu_to_le32(0x00010106)
+#define OID_GEN_CURRENT_PACKET_FILTER	cpu_to_le32(0x0001010e)
+#define OID_GEN_PHYSICAL_MEDIUM		cpu_to_le32(0x00010202)
 
 /* packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
-#define RNDIS_PACKET_TYPE_DIRECTED		ccpu2(0x00000001)
-#define RNDIS_PACKET_TYPE_MULTICAST		ccpu2(0x00000002)
-#define RNDIS_PACKET_TYPE_ALL_MULTICAST		ccpu2(0x00000004)
-#define RNDIS_PACKET_TYPE_BROADCAST		ccpu2(0x00000008)
-#define RNDIS_PACKET_TYPE_SOURCE_ROUTING	ccpu2(0x00000010)
-#define RNDIS_PACKET_TYPE_PROMISCUOUS		ccpu2(0x00000020)
-#define RNDIS_PACKET_TYPE_SMT			ccpu2(0x00000040)
-#define RNDIS_PACKET_TYPE_ALL_LOCAL		ccpu2(0x00000080)
-#define RNDIS_PACKET_TYPE_GROUP			ccpu2(0x00001000)
-#define RNDIS_PACKET_TYPE_ALL_FUNCTIONAL	ccpu2(0x00002000)
-#define RNDIS_PACKET_TYPE_FUNCTIONAL		ccpu2(0x00004000)
-#define RNDIS_PACKET_TYPE_MAC_FRAME		ccpu2(0x00008000)
+#define RNDIS_PACKET_TYPE_DIRECTED		cpu_to_le32(0x00000001)
+#define RNDIS_PACKET_TYPE_MULTICAST		cpu_to_le32(0x00000002)
+#define RNDIS_PACKET_TYPE_ALL_MULTICAST		cpu_to_le32(0x00000004)
+#define RNDIS_PACKET_TYPE_BROADCAST		cpu_to_le32(0x00000008)
+#define RNDIS_PACKET_TYPE_SOURCE_ROUTING	cpu_to_le32(0x00000010)
+#define RNDIS_PACKET_TYPE_PROMISCUOUS		cpu_to_le32(0x00000020)
+#define RNDIS_PACKET_TYPE_SMT			cpu_to_le32(0x00000040)
+#define RNDIS_PACKET_TYPE_ALL_LOCAL		cpu_to_le32(0x00000080)
+#define RNDIS_PACKET_TYPE_GROUP			cpu_to_le32(0x00001000)
+#define RNDIS_PACKET_TYPE_ALL_FUNCTIONAL	cpu_to_le32(0x00002000)
+#define RNDIS_PACKET_TYPE_FUNCTIONAL		cpu_to_le32(0x00004000)
+#define RNDIS_PACKET_TYPE_MAC_FRAME		cpu_to_le32(0x00008000)
 
 /* default filter used with RNDIS devices */
 #define RNDIS_DEFAULT_FILTER ( \
-- 
cgit v1.2.3


From f3a7c66b5ce0b75a9774a50b5dcce93e5ba28370 Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Sat, 14 Feb 2009 22:58:35 -0800
Subject: net: replace __constant_{endian} uses in net headers

Base versions handle constant folding now.  For headers exposed to
userspace, we must only expose the __ prefixed versions.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/if_pppox.h         | 20 ++++-----
 include/linux/if_tunnel.h        | 16 +++----
 include/linux/ncp_no.h           | 26 ++++++------
 include/linux/netdevice.h        |  4 +-
 include/linux/netfilter_bridge.h |  4 +-
 include/linux/pim.h              |  4 +-
 include/linux/sctp.h             | 90 ++++++++++++++++++++--------------------
 include/linux/tcp.h              | 20 ++++-----
 include/net/inet_ecn.h           |  4 +-
 include/net/ip_vs.h              |  4 +-
 include/net/ipv6.h               |  4 +-
 include/net/ipx.h                |  2 +-
 include/net/transp_v6.h          |  2 +-
 include/rdma/ib_verbs.h          |  2 +-
 14 files changed, 101 insertions(+), 101 deletions(-)

(limited to 'include')

diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
index 30c88b2245ff..90b5fae5d714 100644
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -95,16 +95,16 @@ struct pppoe_tag {
 } __attribute ((packed));
 
 /* Tag identifiers */
-#define PTT_EOL		__constant_htons(0x0000)
-#define PTT_SRV_NAME	__constant_htons(0x0101)
-#define PTT_AC_NAME	__constant_htons(0x0102)
-#define PTT_HOST_UNIQ	__constant_htons(0x0103)
-#define PTT_AC_COOKIE	__constant_htons(0x0104)
-#define PTT_VENDOR 	__constant_htons(0x0105)
-#define PTT_RELAY_SID	__constant_htons(0x0110)
-#define PTT_SRV_ERR     __constant_htons(0x0201)
-#define PTT_SYS_ERR  	__constant_htons(0x0202)
-#define PTT_GEN_ERR  	__constant_htons(0x0203)
+#define PTT_EOL		__cpu_to_be16(0x0000)
+#define PTT_SRV_NAME	__cpu_to_be16(0x0101)
+#define PTT_AC_NAME	__cpu_to_be16(0x0102)
+#define PTT_HOST_UNIQ	__cpu_to_be16(0x0103)
+#define PTT_AC_COOKIE	__cpu_to_be16(0x0104)
+#define PTT_VENDOR 	__cpu_to_be16(0x0105)
+#define PTT_RELAY_SID	__cpu_to_be16(0x0110)
+#define PTT_SRV_ERR     __cpu_to_be16(0x0201)
+#define PTT_SYS_ERR  	__cpu_to_be16(0x0202)
+#define PTT_GEN_ERR  	__cpu_to_be16(0x0203)
 
 struct pppoe_hdr {
 #if defined(__LITTLE_ENDIAN_BITFIELD)
diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index 82c43624c067..5a9aae4adb44 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -16,14 +16,14 @@
 #define SIOCDELPRL      (SIOCDEVPRIVATE + 6)
 #define SIOCCHGPRL      (SIOCDEVPRIVATE + 7)
 
-#define GRE_CSUM	__constant_htons(0x8000)
-#define GRE_ROUTING	__constant_htons(0x4000)
-#define GRE_KEY		__constant_htons(0x2000)
-#define GRE_SEQ		__constant_htons(0x1000)
-#define GRE_STRICT	__constant_htons(0x0800)
-#define GRE_REC		__constant_htons(0x0700)
-#define GRE_FLAGS	__constant_htons(0x00F8)
-#define GRE_VERSION	__constant_htons(0x0007)
+#define GRE_CSUM	__cpu_to_be16(0x8000)
+#define GRE_ROUTING	__cpu_to_be16(0x4000)
+#define GRE_KEY		__cpu_to_be16(0x2000)
+#define GRE_SEQ		__cpu_to_be16(0x1000)
+#define GRE_STRICT	__cpu_to_be16(0x0800)
+#define GRE_REC		__cpu_to_be16(0x0700)
+#define GRE_FLAGS	__cpu_to_be16(0x00F8)
+#define GRE_VERSION	__cpu_to_be16(0x0007)
 
 struct ip_tunnel_parm
 {
diff --git a/include/linux/ncp_no.h b/include/linux/ncp_no.h
index f56a696a7cc6..cddaa48fb182 100644
--- a/include/linux/ncp_no.h
+++ b/include/linux/ncp_no.h
@@ -2,18 +2,18 @@
 #define _NCP_NO
 
 /* these define the attribute byte as seen by NCP */
-#define aRONLY			(__constant_cpu_to_le32(1))
-#define aHIDDEN			(__constant_cpu_to_le32(2))
-#define aSYSTEM			(__constant_cpu_to_le32(4))
-#define aEXECUTE		(__constant_cpu_to_le32(8))
-#define aDIR			(__constant_cpu_to_le32(0x10))
-#define aARCH			(__constant_cpu_to_le32(0x20))
-#define aSHARED			(__constant_cpu_to_le32(0x80))
-#define aDONTSUBALLOCATE	(__constant_cpu_to_le32(1L<<11))
-#define aTRANSACTIONAL		(__constant_cpu_to_le32(1L<<12))
-#define aPURGE			(__constant_cpu_to_le32(1L<<16))
-#define aRENAMEINHIBIT		(__constant_cpu_to_le32(1L<<17))
-#define aDELETEINHIBIT		(__constant_cpu_to_le32(1L<<18))
-#define aDONTCOMPRESS		(__constant_cpu_to_le32(1L<<27))
+#define aRONLY			(__cpu_to_le32(1))
+#define aHIDDEN			(__cpu_to_le32(2))
+#define aSYSTEM			(__cpu_to_le32(4))
+#define aEXECUTE		(__cpu_to_le32(8))
+#define aDIR			(__cpu_to_le32(0x10))
+#define aARCH			(__cpu_to_le32(0x20))
+#define aSHARED			(__cpu_to_le32(0x80))
+#define aDONTSUBALLOCATE	(__cpu_to_le32(1L<<11))
+#define aTRANSACTIONAL		(__cpu_to_le32(1L<<12))
+#define aPURGE			(__cpu_to_le32(1L<<16))
+#define aRENAMEINHIBIT		(__cpu_to_le32(1L<<17))
+#define aDELETEINHIBIT		(__cpu_to_le32(1L<<18))
+#define aDONTCOMPRESS		(__cpu_to_le32(1L<<27))
 
 #endif /* _NCP_NO */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 355662aac940..bd8b4ca85a2a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1863,7 +1863,7 @@ static inline int skb_bond_should_drop(struct sk_buff *skb)
 
 		if (dev->priv_flags & IFF_SLAVE_INACTIVE) {
 			if ((dev->priv_flags & IFF_SLAVE_NEEDARP) &&
-			    skb->protocol == __constant_htons(ETH_P_ARP))
+			    skb->protocol == __cpu_to_be16(ETH_P_ARP))
 				return 0;
 
 			if (master->priv_flags & IFF_MASTER_ALB) {
@@ -1872,7 +1872,7 @@ static inline int skb_bond_should_drop(struct sk_buff *skb)
 					return 0;
 			}
 			if (master->priv_flags & IFF_MASTER_8023AD &&
-			    skb->protocol == __constant_htons(ETH_P_SLOW))
+			    skb->protocol == __cpu_to_be16(ETH_P_SLOW))
 				return 0;
 
 			return 1;
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index 499aa9375901..f8105e54716a 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -59,9 +59,9 @@ static inline int nf_bridge_maybe_copy_header(struct sk_buff *skb)
 static inline unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb)
 {
 	switch (skb->protocol) {
-	case __constant_htons(ETH_P_8021Q):
+	case __cpu_to_be16(ETH_P_8021Q):
 		return VLAN_HLEN;
-	case __constant_htons(ETH_P_PPP_SES):
+	case __cpu_to_be16(ETH_P_PPP_SES):
 		return PPPOE_SES_HLEN;
 	default:
 		return 0;
diff --git a/include/linux/pim.h b/include/linux/pim.h
index 1ba0661561a4..252bf6644c51 100644
--- a/include/linux/pim.h
+++ b/include/linux/pim.h
@@ -4,14 +4,14 @@
 #include <asm/byteorder.h>
 
 /* Message types - V1 */
-#define PIM_V1_VERSION		__constant_htonl(0x10000000)
+#define PIM_V1_VERSION		cpu_to_be32(0x10000000)
 #define PIM_V1_REGISTER		1
 
 /* Message types - V2 */
 #define PIM_VERSION		2
 #define PIM_REGISTER		1
 
-#define PIM_NULL_REGISTER	__constant_htonl(0x40000000)
+#define PIM_NULL_REGISTER	cpu_to_be32(0x40000000)
 
 /* PIMv2 register message header layout (ietf-draft-idmr-pimvsm-v2-00.ps */
 struct pimreghdr
diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index 8ba1c320f975..bd50b371ffaa 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -172,35 +172,35 @@ typedef struct sctp_paramhdr {
 typedef enum {
 
 	/* RFC 2960 Section 3.3.5 */
-	SCTP_PARAM_HEARTBEAT_INFO		= __constant_htons(1),
+	SCTP_PARAM_HEARTBEAT_INFO		= cpu_to_be16(1),
 	/* RFC 2960 Section 3.3.2.1 */
-	SCTP_PARAM_IPV4_ADDRESS			= __constant_htons(5),
-	SCTP_PARAM_IPV6_ADDRESS			= __constant_htons(6),
-	SCTP_PARAM_STATE_COOKIE			= __constant_htons(7),
-	SCTP_PARAM_UNRECOGNIZED_PARAMETERS	= __constant_htons(8),
-	SCTP_PARAM_COOKIE_PRESERVATIVE		= __constant_htons(9),
-	SCTP_PARAM_HOST_NAME_ADDRESS		= __constant_htons(11),
-	SCTP_PARAM_SUPPORTED_ADDRESS_TYPES	= __constant_htons(12),
-	SCTP_PARAM_ECN_CAPABLE			= __constant_htons(0x8000),
+	SCTP_PARAM_IPV4_ADDRESS			= cpu_to_be16(5),
+	SCTP_PARAM_IPV6_ADDRESS			= cpu_to_be16(6),
+	SCTP_PARAM_STATE_COOKIE			= cpu_to_be16(7),
+	SCTP_PARAM_UNRECOGNIZED_PARAMETERS	= cpu_to_be16(8),
+	SCTP_PARAM_COOKIE_PRESERVATIVE		= cpu_to_be16(9),
+	SCTP_PARAM_HOST_NAME_ADDRESS		= cpu_to_be16(11),
+	SCTP_PARAM_SUPPORTED_ADDRESS_TYPES	= cpu_to_be16(12),
+	SCTP_PARAM_ECN_CAPABLE			= cpu_to_be16(0x8000),
 
 	/* AUTH Extension Section 3 */
-	SCTP_PARAM_RANDOM			= __constant_htons(0x8002),
-	SCTP_PARAM_CHUNKS			= __constant_htons(0x8003),
-	SCTP_PARAM_HMAC_ALGO			= __constant_htons(0x8004),
+	SCTP_PARAM_RANDOM			= cpu_to_be16(0x8002),
+	SCTP_PARAM_CHUNKS			= cpu_to_be16(0x8003),
+	SCTP_PARAM_HMAC_ALGO			= cpu_to_be16(0x8004),
 
 	/* Add-IP: Supported Extensions, Section 4.2 */
-	SCTP_PARAM_SUPPORTED_EXT	= __constant_htons(0x8008),
+	SCTP_PARAM_SUPPORTED_EXT	= cpu_to_be16(0x8008),
 
 	/* PR-SCTP Sec 3.1 */
-	SCTP_PARAM_FWD_TSN_SUPPORT	= __constant_htons(0xc000),
+	SCTP_PARAM_FWD_TSN_SUPPORT	= cpu_to_be16(0xc000),
 
 	/* Add-IP Extension. Section 3.2 */
-	SCTP_PARAM_ADD_IP		= __constant_htons(0xc001),
-	SCTP_PARAM_DEL_IP		= __constant_htons(0xc002),
-	SCTP_PARAM_ERR_CAUSE		= __constant_htons(0xc003),
-	SCTP_PARAM_SET_PRIMARY		= __constant_htons(0xc004),
-	SCTP_PARAM_SUCCESS_REPORT	= __constant_htons(0xc005),
-	SCTP_PARAM_ADAPTATION_LAYER_IND = __constant_htons(0xc006),
+	SCTP_PARAM_ADD_IP		= cpu_to_be16(0xc001),
+	SCTP_PARAM_DEL_IP		= cpu_to_be16(0xc002),
+	SCTP_PARAM_ERR_CAUSE		= cpu_to_be16(0xc003),
+	SCTP_PARAM_SET_PRIMARY		= cpu_to_be16(0xc004),
+	SCTP_PARAM_SUCCESS_REPORT	= cpu_to_be16(0xc005),
+	SCTP_PARAM_ADAPTATION_LAYER_IND = cpu_to_be16(0xc006),
 
 } sctp_param_t; /* enum */
 
@@ -212,13 +212,13 @@ typedef enum {
  *
  */
 typedef enum {
-	SCTP_PARAM_ACTION_DISCARD     = __constant_htons(0x0000),
-	SCTP_PARAM_ACTION_DISCARD_ERR = __constant_htons(0x4000),
-	SCTP_PARAM_ACTION_SKIP        = __constant_htons(0x8000),
-	SCTP_PARAM_ACTION_SKIP_ERR    = __constant_htons(0xc000),
+	SCTP_PARAM_ACTION_DISCARD     = cpu_to_be16(0x0000),
+	SCTP_PARAM_ACTION_DISCARD_ERR = cpu_to_be16(0x4000),
+	SCTP_PARAM_ACTION_SKIP        = cpu_to_be16(0x8000),
+	SCTP_PARAM_ACTION_SKIP_ERR    = cpu_to_be16(0xc000),
 } sctp_param_action_t;
 
-enum { SCTP_PARAM_ACTION_MASK = __constant_htons(0xc000), };
+enum { SCTP_PARAM_ACTION_MASK = cpu_to_be16(0xc000), };
 
 /* RFC 2960 Section 3.3.1 Payload Data (DATA) (0) */
 
@@ -457,17 +457,17 @@ typedef struct sctp_operr_chunk {
  */
 typedef enum {
 
-	SCTP_ERROR_NO_ERROR	   = __constant_htons(0x00),
-	SCTP_ERROR_INV_STRM	   = __constant_htons(0x01),
-	SCTP_ERROR_MISS_PARAM 	   = __constant_htons(0x02),
-	SCTP_ERROR_STALE_COOKIE	   = __constant_htons(0x03),
-	SCTP_ERROR_NO_RESOURCE 	   = __constant_htons(0x04),
-	SCTP_ERROR_DNS_FAILED      = __constant_htons(0x05),
-	SCTP_ERROR_UNKNOWN_CHUNK   = __constant_htons(0x06),
-	SCTP_ERROR_INV_PARAM       = __constant_htons(0x07),
-	SCTP_ERROR_UNKNOWN_PARAM   = __constant_htons(0x08),
-	SCTP_ERROR_NO_DATA         = __constant_htons(0x09),
-	SCTP_ERROR_COOKIE_IN_SHUTDOWN = __constant_htons(0x0a),
+	SCTP_ERROR_NO_ERROR	   = cpu_to_be16(0x00),
+	SCTP_ERROR_INV_STRM	   = cpu_to_be16(0x01),
+	SCTP_ERROR_MISS_PARAM 	   = cpu_to_be16(0x02),
+	SCTP_ERROR_STALE_COOKIE	   = cpu_to_be16(0x03),
+	SCTP_ERROR_NO_RESOURCE 	   = cpu_to_be16(0x04),
+	SCTP_ERROR_DNS_FAILED      = cpu_to_be16(0x05),
+	SCTP_ERROR_UNKNOWN_CHUNK   = cpu_to_be16(0x06),
+	SCTP_ERROR_INV_PARAM       = cpu_to_be16(0x07),
+	SCTP_ERROR_UNKNOWN_PARAM   = cpu_to_be16(0x08),
+	SCTP_ERROR_NO_DATA         = cpu_to_be16(0x09),
+	SCTP_ERROR_COOKIE_IN_SHUTDOWN = cpu_to_be16(0x0a),
 
 
 	/* SCTP Implementation Guide:
@@ -476,9 +476,9 @@ typedef enum {
 	 *  13  Protocol Violation
 	 */
 
-	SCTP_ERROR_RESTART         = __constant_htons(0x0b),
-	SCTP_ERROR_USER_ABORT      = __constant_htons(0x0c),
-	SCTP_ERROR_PROTO_VIOLATION = __constant_htons(0x0d),
+	SCTP_ERROR_RESTART         = cpu_to_be16(0x0b),
+	SCTP_ERROR_USER_ABORT      = cpu_to_be16(0x0c),
+	SCTP_ERROR_PROTO_VIOLATION = cpu_to_be16(0x0d),
 
 	/* ADDIP Section 3.3  New Error Causes
 	 *
@@ -493,11 +493,11 @@ typedef enum {
 	 * 0x0103          Association Aborted due to illegal ASCONF-ACK
 	 * 0x0104          Request refused - no authorization.
 	 */
-	SCTP_ERROR_DEL_LAST_IP	= __constant_htons(0x0100),
-	SCTP_ERROR_RSRC_LOW	= __constant_htons(0x0101),
-	SCTP_ERROR_DEL_SRC_IP	= __constant_htons(0x0102),
-	SCTP_ERROR_ASCONF_ACK   = __constant_htons(0x0103),
-	SCTP_ERROR_REQ_REFUSED	= __constant_htons(0x0104),
+	SCTP_ERROR_DEL_LAST_IP	= cpu_to_be16(0x0100),
+	SCTP_ERROR_RSRC_LOW	= cpu_to_be16(0x0101),
+	SCTP_ERROR_DEL_SRC_IP	= cpu_to_be16(0x0102),
+	SCTP_ERROR_ASCONF_ACK   = cpu_to_be16(0x0103),
+	SCTP_ERROR_REQ_REFUSED	= cpu_to_be16(0x0104),
 
 	/* AUTH Section 4.  New Error Cause
 	 *
@@ -509,7 +509,7 @@ typedef enum {
 	 * --------------------------------------------------------------
 	 * 0x0105          Unsupported HMAC Identifier
 	 */
-	 SCTP_ERROR_UNSUP_HMAC	= __constant_htons(0x0105)
+	 SCTP_ERROR_UNSUP_HMAC	= cpu_to_be16(0x0105)
 } sctp_error_t;
 
 
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index fe77e1499ab7..0cd99e6baca5 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -69,16 +69,16 @@ union tcp_word_hdr {
 #define tcp_flag_word(tp) ( ((union tcp_word_hdr *)(tp))->words [3]) 
 
 enum { 
-	TCP_FLAG_CWR = __constant_htonl(0x00800000), 
-	TCP_FLAG_ECE = __constant_htonl(0x00400000), 
-	TCP_FLAG_URG = __constant_htonl(0x00200000), 
-	TCP_FLAG_ACK = __constant_htonl(0x00100000), 
-	TCP_FLAG_PSH = __constant_htonl(0x00080000), 
-	TCP_FLAG_RST = __constant_htonl(0x00040000), 
-	TCP_FLAG_SYN = __constant_htonl(0x00020000), 
-	TCP_FLAG_FIN = __constant_htonl(0x00010000),
-	TCP_RESERVED_BITS = __constant_htonl(0x0F000000),
-	TCP_DATA_OFFSET = __constant_htonl(0xF0000000)
+	TCP_FLAG_CWR = __cpu_to_be32(0x00800000),
+	TCP_FLAG_ECE = __cpu_to_be32(0x00400000),
+	TCP_FLAG_URG = __cpu_to_be32(0x00200000),
+	TCP_FLAG_ACK = __cpu_to_be32(0x00100000),
+	TCP_FLAG_PSH = __cpu_to_be32(0x00080000),
+	TCP_FLAG_RST = __cpu_to_be32(0x00040000),
+	TCP_FLAG_SYN = __cpu_to_be32(0x00020000),
+	TCP_FLAG_FIN = __cpu_to_be32(0x00010000),
+	TCP_RESERVED_BITS = __cpu_to_be32(0x0F000000),
+	TCP_DATA_OFFSET = __cpu_to_be32(0xF0000000)
 }; 
 
 /* TCP socket options */
diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index 7040a782c656..9b5d08f4f6e8 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -113,12 +113,12 @@ static inline void ipv6_copy_dscp(unsigned int dscp, struct ipv6hdr *inner)
 static inline int INET_ECN_set_ce(struct sk_buff *skb)
 {
 	switch (skb->protocol) {
-	case __constant_htons(ETH_P_IP):
+	case cpu_to_be16(ETH_P_IP):
 		if (skb->network_header + sizeof(struct iphdr) <= skb->tail)
 			return IP_ECN_set_ce(ip_hdr(skb));
 		break;
 
-	case __constant_htons(ETH_P_IPV6):
+	case cpu_to_be16(ETH_P_IPV6):
 		if (skb->network_header + sizeof(struct ipv6hdr) <= skb->tail)
 			return IP6_ECN_set_ce(ipv6_hdr(skb));
 		break;
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index ab9b003ab671..bbae1e87efcd 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -184,8 +184,8 @@ static inline const char *ip_vs_dbg_addr(int af, char *buf, size_t buf_len,
 /*
  *      The port number of FTP service (in network order).
  */
-#define FTPPORT  __constant_htons(21)
-#define FTPDATA  __constant_htons(20)
+#define FTPPORT  cpu_to_be16(21)
+#define FTPDATA  cpu_to_be16(20)
 
 /*
  *      TCP State Values
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 6d5b58a1c743..c1f16fc49ade 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -196,8 +196,8 @@ struct ip6_flowlabel
 	struct net		*fl_net;
 };
 
-#define IPV6_FLOWINFO_MASK	__constant_htonl(0x0FFFFFFF)
-#define IPV6_FLOWLABEL_MASK	__constant_htonl(0x000FFFFF)
+#define IPV6_FLOWINFO_MASK	cpu_to_be32(0x0FFFFFFF)
+#define IPV6_FLOWLABEL_MASK	cpu_to_be32(0x000FFFFF)
 
 struct ipv6_fl_socklist
 {
diff --git a/include/net/ipx.h b/include/net/ipx.h
index 4cc0b4eca948..a14121dd1932 100644
--- a/include/net/ipx.h
+++ b/include/net/ipx.h
@@ -27,7 +27,7 @@ struct ipx_address {
 
 struct ipxhdr {
 	__be16			ipx_checksum __attribute__ ((packed));
-#define IPX_NO_CHECKSUM	__constant_htons(0xFFFF)
+#define IPX_NO_CHECKSUM	cpu_to_be16(0xFFFF)
 	__be16			ipx_pktsize __attribute__ ((packed));
 	__u8			ipx_tctrl;
 	__u8			ipx_type;
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index 876b6f2bb4fd..bfb240c6cf79 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -46,7 +46,7 @@ extern int			datagram_send_ctl(struct net *net,
 						  struct ipv6_txoptions *opt,
 						  int *hlimit, int *tclass);
 
-#define		LOOPBACK4_IPV6		__constant_htonl(0x7f000006)
+#define		LOOPBACK4_IPV6		cpu_to_be32(0x7f000006)
 
 /*
  *	address family specific functions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 936e333e7ce5..c179318edd92 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -388,7 +388,7 @@ enum {
 	IB_MULTICAST_QPN = 0xffffff
 };
 
-#define IB_LID_PERMISSIVE	__constant_htons(0xFFFF)
+#define IB_LID_PERMISSIVE	cpu_to_be16(0xFFFF)
 
 enum ib_ah_flags {
 	IB_AH_GRH	= 1
-- 
cgit v1.2.3


From a038a353c3de4040d8445ec568acebdac144436f Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:34 +0000
Subject: clocksource: allow usage independent of timekeeping.c

So far struct clocksource acted as the interface between time/timekeeping.c
and hardware. This patch generalizes the concept so that a similar
interface can also be used in other contexts. For that it introduces
new structures and related functions *without* touching the existing
struct clocksource.

The reasons for adding these new structures to clocksource.[ch] are
* the APIs are clearly related
* struct clocksource could be cleaned up to use the new structs
* avoids proliferation of files with similar names (timesource.h?
  timecounter.h?)

As outlined in the discussion with John Stultz, this patch adds
* struct cyclecounter: stateless API to hardware which counts clock cycles
* struct timecounter: stateful utility code built on a cyclecounter which
  provides a nanosecond counter
* only the function to read the nanosecond counter; deltas are used internally
  and not exposed to users of timecounter

The code does no locking of the shared state. It must be called at least
as often as the cycle counter wraps around to detect these wrap arounds.
Both is the responsibility of the timecounter user.

Acked-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/clocksource.h | 101 ++++++++++++++++++++++++++++++++++++++++++++
 kernel/time/clocksource.c   |  76 +++++++++++++++++++++++++++++++++
 2 files changed, 177 insertions(+)

(limited to 'include')

diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index f88d32f8ff7c..573819ef4cc0 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -21,9 +21,110 @@
 typedef u64 cycle_t;
 struct clocksource;
 
+/**
+ * struct cyclecounter - hardware abstraction for a free running counter
+ *	Provides completely state-free accessors to the underlying hardware.
+ *	Depending on which hardware it reads, the cycle counter may wrap
+ *	around quickly. Locking rules (if necessary) have to be defined
+ *	by the implementor and user of specific instances of this API.
+ *
+ * @read:		returns the current cycle value
+ * @mask:		bitmask for two's complement
+ *			subtraction of non 64 bit counters,
+ *			see CLOCKSOURCE_MASK() helper macro
+ * @mult:		cycle to nanosecond multiplier
+ * @shift:		cycle to nanosecond divisor (power of two)
+ */
+struct cyclecounter {
+	cycle_t (*read)(const struct cyclecounter *cc);
+	cycle_t mask;
+	u32 mult;
+	u32 shift;
+};
+
+/**
+ * struct timecounter - layer above a %struct cyclecounter which counts nanoseconds
+ *	Contains the state needed by timecounter_read() to detect
+ *	cycle counter wrap around. Initialize with
+ *	timecounter_init(). Also used to convert cycle counts into the
+ *	corresponding nanosecond counts with timecounter_cyc2time(). Users
+ *	of this code are responsible for initializing the underlying
+ *	cycle counter hardware, locking issues and reading the time
+ *	more often than the cycle counter wraps around. The nanosecond
+ *	counter will only wrap around after ~585 years.
+ *
+ * @cc:			the cycle counter used by this instance
+ * @cycle_last:		most recent cycle counter value seen by
+ *			timecounter_read()
+ * @nsec:		continuously increasing count
+ */
+struct timecounter {
+	const struct cyclecounter *cc;
+	cycle_t cycle_last;
+	u64 nsec;
+};
+
+/**
+ * cyclecounter_cyc2ns - converts cycle counter cycles to nanoseconds
+ * @tc:		Pointer to cycle counter.
+ * @cycles:	Cycles
+ *
+ * XXX - This could use some mult_lxl_ll() asm optimization. Same code
+ * as in cyc2ns, but with unsigned result.
+ */
+static inline u64 cyclecounter_cyc2ns(const struct cyclecounter *cc,
+				      cycle_t cycles)
+{
+	u64 ret = (u64)cycles;
+	ret = (ret * cc->mult) >> cc->shift;
+	return ret;
+}
+
+/**
+ * timecounter_init - initialize a time counter
+ * @tc:			Pointer to time counter which is to be initialized/reset
+ * @cc:			A cycle counter, ready to be used.
+ * @start_tstamp:	Arbitrary initial time stamp.
+ *
+ * After this call the current cycle register (roughly) corresponds to
+ * the initial time stamp. Every call to timecounter_read() increments
+ * the time stamp counter by the number of elapsed nanoseconds.
+ */
+extern void timecounter_init(struct timecounter *tc,
+			     const struct cyclecounter *cc,
+			     u64 start_tstamp);
+
+/**
+ * timecounter_read - return nanoseconds elapsed since timecounter_init()
+ *                    plus the initial time stamp
+ * @tc:          Pointer to time counter.
+ *
+ * In other words, keeps track of time since the same epoch as
+ * the function which generated the initial time stamp.
+ */
+extern u64 timecounter_read(struct timecounter *tc);
+
+/**
+ * timecounter_cyc2time - convert a cycle counter to same
+ *                        time base as values returned by
+ *                        timecounter_read()
+ * @tc:		Pointer to time counter.
+ * @cycle:	a value returned by tc->cc->read()
+ *
+ * Cycle counts that are converted correctly as long as they
+ * fall into the interval [-1/2 max cycle count, +1/2 max cycle count],
+ * with "max cycle count" == cs->mask+1.
+ *
+ * This allows conversion of cycle counter values which were generated
+ * in the past.
+ */
+extern u64 timecounter_cyc2time(struct timecounter *tc,
+				cycle_t cycle_tstamp);
+
 /**
  * struct clocksource - hardware abstraction for a free running counter
  *	Provides mostly state-free accessors to the underlying hardware.
+ *	This is the structure used for system time.
  *
  * @name:		ptr to clocksource name
  * @list:		list head for registration
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index ca89e1593f08..c46c931a7fe7 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -31,6 +31,82 @@
 #include <linux/sched.h> /* for spin_unlock_irq() using preempt_count() m68k */
 #include <linux/tick.h>
 
+void timecounter_init(struct timecounter *tc,
+		      const struct cyclecounter *cc,
+		      u64 start_tstamp)
+{
+	tc->cc = cc;
+	tc->cycle_last = cc->read(cc);
+	tc->nsec = start_tstamp;
+}
+EXPORT_SYMBOL(timecounter_init);
+
+/**
+ * timecounter_read_delta - get nanoseconds since last call of this function
+ * @tc:         Pointer to time counter
+ *
+ * When the underlying cycle counter runs over, this will be handled
+ * correctly as long as it does not run over more than once between
+ * calls.
+ *
+ * The first call to this function for a new time counter initializes
+ * the time tracking and returns an undefined result.
+ */
+static u64 timecounter_read_delta(struct timecounter *tc)
+{
+	cycle_t cycle_now, cycle_delta;
+	u64 ns_offset;
+
+	/* read cycle counter: */
+	cycle_now = tc->cc->read(tc->cc);
+
+	/* calculate the delta since the last timecounter_read_delta(): */
+	cycle_delta = (cycle_now - tc->cycle_last) & tc->cc->mask;
+
+	/* convert to nanoseconds: */
+	ns_offset = cyclecounter_cyc2ns(tc->cc, cycle_delta);
+
+	/* update time stamp of timecounter_read_delta() call: */
+	tc->cycle_last = cycle_now;
+
+	return ns_offset;
+}
+
+u64 timecounter_read(struct timecounter *tc)
+{
+	u64 nsec;
+
+	/* increment time by nanoseconds since last call */
+	nsec = timecounter_read_delta(tc);
+	nsec += tc->nsec;
+	tc->nsec = nsec;
+
+	return nsec;
+}
+EXPORT_SYMBOL(timecounter_read);
+
+u64 timecounter_cyc2time(struct timecounter *tc,
+			 cycle_t cycle_tstamp)
+{
+	u64 cycle_delta = (cycle_tstamp - tc->cycle_last) & tc->cc->mask;
+	u64 nsec;
+
+	/*
+	 * Instead of always treating cycle_tstamp as more recent
+	 * than tc->cycle_last, detect when it is too far in the
+	 * future and treat it as old time stamp instead.
+	 */
+	if (cycle_delta > tc->cc->mask / 2) {
+		cycle_delta = (tc->cycle_last - cycle_tstamp) & tc->cc->mask;
+		nsec = tc->nsec - cyclecounter_cyc2ns(tc->cc, cycle_delta);
+	} else {
+		nsec = cyclecounter_cyc2ns(tc->cc, cycle_delta) + tc->nsec;
+	}
+
+	return nsec;
+}
+EXPORT_SYMBOL(timecounter_cyc2time);
+
 /* XXX - Would like a better way for initializing curr_clocksource */
 extern struct clocksource clocksource_jiffies;
 
-- 
cgit v1.2.3


From a75244c3d519fcb490ca2bf3f123c98017f1e8d0 Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:35 +0000
Subject: timecompare: generic infrastructure to map between two time bases

Mapping from a struct timecounter to a time returned by functions like
ktime_get_real() is implemented. This is sufficient to use this code
in a network device driver which wants to support hardware time
stamping and transformation of hardware time stamps to system time.

The interface could have been made more versatile by not depending on
a time counter, but this wasn't done to avoid writing glue code
elsewhere.

The method implemented here is the one used and analyzed under the name
"assisted PTP" in the LCI PTP paper:
http://www.linuxclustersinstitute.org/conferences/archive/2008/PDF/Ohly_92221.pdf

Acked-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/timecompare.h | 125 +++++++++++++++++++++++++++++
 kernel/time/Makefile        |   2 +-
 kernel/time/timecompare.c   | 191 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 317 insertions(+), 1 deletion(-)
 create mode 100644 include/linux/timecompare.h
 create mode 100644 kernel/time/timecompare.c

(limited to 'include')

diff --git a/include/linux/timecompare.h b/include/linux/timecompare.h
new file mode 100644
index 000000000000..546e2234e4b3
--- /dev/null
+++ b/include/linux/timecompare.h
@@ -0,0 +1,125 @@
+/*
+ * Utility code which helps transforming between two different time
+ * bases, called "source" and "target" time in this code.
+ *
+ * Source time has to be provided via the timecounter API while target
+ * time is accessed via a function callback whose prototype
+ * intentionally matches ktime_get() and ktime_get_real(). These
+ * interfaces where chosen like this so that the code serves its
+ * initial purpose without additional glue code.
+ *
+ * This purpose is synchronizing a hardware clock in a NIC with system
+ * time, in order to implement the Precision Time Protocol (PTP,
+ * IEEE1588) with more accurate hardware assisted time stamping.  In
+ * that context only synchronization against system time (=
+ * ktime_get_real()) is currently needed. But this utility code might
+ * become useful in other situations, which is why it was written as
+ * general purpose utility code.
+ *
+ * The source timecounter is assumed to return monotonically
+ * increasing time (but this code does its best to compensate if that
+ * is not the case) whereas target time may jump.
+ *
+ * The target time corresponding to a source time is determined by
+ * reading target time, reading source time, reading target time
+ * again, then assuming that average target time corresponds to source
+ * time. In other words, the assumption is that reading the source
+ * time is slow and involves equal time for sending the request and
+ * receiving the reply, whereas reading target time is assumed to be
+ * fast.
+ *
+ * Copyright (C) 2009 Intel Corporation.
+ * Author: Patrick Ohly <patrick.ohly@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef _LINUX_TIMECOMPARE_H
+#define _LINUX_TIMECOMPARE_H
+
+#include <linux/clocksource.h>
+#include <linux/ktime.h>
+
+/**
+ * struct timecompare - stores state and configuration for the two clocks
+ *
+ * Initialize to zero, then set source/target/num_samples.
+ *
+ * Transformation between source time and target time is done with:
+ * target_time = source_time + offset +
+ *               (source_time - last_update) * skew /
+ *               TIMECOMPARE_SKEW_RESOLUTION
+ *
+ * @source:          used to get source time stamps via timecounter_read()
+ * @target:          function returning target time (for example, ktime_get
+ *                   for monotonic time, or ktime_get_real for wall clock)
+ * @num_samples:     number of times that source time and target time are to
+ *                   be compared when determining their offset
+ * @offset:          (target time - source time) at the time of the last update
+ * @skew:            average (target time - source time) / delta source time *
+ *                   TIMECOMPARE_SKEW_RESOLUTION
+ * @last_update:     last source time stamp when time offset was measured
+ */
+struct timecompare {
+	struct timecounter *source;
+	ktime_t (*target)(void);
+	int num_samples;
+
+	s64 offset;
+	s64 skew;
+	u64 last_update;
+};
+
+/**
+ * timecompare_transform - transform source time stamp into target time base
+ * @sync:            context for time sync
+ * @source_tstamp:   the result of timecounter_read() or
+ *                   timecounter_cyc2time()
+ */
+extern ktime_t timecompare_transform(struct timecompare *sync,
+				     u64 source_tstamp);
+
+/**
+ * timecompare_offset - measure current (target time - source time) offset
+ * @sync:            context for time sync
+ * @offset:          average offset during sample period returned here
+ * @source_tstamp:   average source time during sample period returned here
+ *
+ * Returns number of samples used. Might be zero (= no result) in the
+ * unlikely case that target time was monotonically decreasing for all
+ * samples (= broken).
+ */
+extern int timecompare_offset(struct timecompare *sync,
+			      s64 *offset,
+			      u64 *source_tstamp);
+
+extern void __timecompare_update(struct timecompare *sync,
+				 u64 source_tstamp);
+
+/**
+ * timecompare_update - update offset and skew by measuring current offset
+ * @sync:            context for time sync
+ * @source_tstamp:   the result of timecounter_read() or
+ *                   timecounter_cyc2time(), pass zero to force update
+ *
+ * Updates are only done at most once per second.
+ */
+static inline void timecompare_update(struct timecompare *sync,
+				      u64 source_tstamp)
+{
+	if (!source_tstamp ||
+	    (s64)(source_tstamp - sync->last_update) >= NSEC_PER_SEC)
+		__timecompare_update(sync, source_tstamp);
+}
+
+#endif /* _LINUX_TIMECOMPARE_H */
diff --git a/kernel/time/Makefile b/kernel/time/Makefile
index 905b0b50792d..0b0a6366c9d4 100644
--- a/kernel/time/Makefile
+++ b/kernel/time/Makefile
@@ -1,4 +1,4 @@
-obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o
+obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o timecompare.o
 
 obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD)		+= clockevents.o
 obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= tick-common.o
diff --git a/kernel/time/timecompare.c b/kernel/time/timecompare.c
new file mode 100644
index 000000000000..71e7f1a19156
--- /dev/null
+++ b/kernel/time/timecompare.c
@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2009 Intel Corporation.
+ * Author: Patrick Ohly <patrick.ohly@intel.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/timecompare.h>
+#include <linux/module.h>
+#include <linux/math64.h>
+
+/*
+ * fixed point arithmetic scale factor for skew
+ *
+ * Usually one would measure skew in ppb (parts per billion, 1e9), but
+ * using a factor of 2 simplifies the math.
+ */
+#define TIMECOMPARE_SKEW_RESOLUTION (((s64)1)<<30)
+
+ktime_t timecompare_transform(struct timecompare *sync,
+			      u64 source_tstamp)
+{
+	u64 nsec;
+
+	nsec = source_tstamp + sync->offset;
+	nsec += (s64)(source_tstamp - sync->last_update) * sync->skew /
+		TIMECOMPARE_SKEW_RESOLUTION;
+
+	return ns_to_ktime(nsec);
+}
+EXPORT_SYMBOL(timecompare_transform);
+
+int timecompare_offset(struct timecompare *sync,
+		       s64 *offset,
+		       u64 *source_tstamp)
+{
+	u64 start_source = 0, end_source = 0;
+	struct {
+		s64 offset;
+		s64 duration_target;
+	} buffer[10], sample, *samples;
+	int counter = 0, i;
+	int used;
+	int index;
+	int num_samples = sync->num_samples;
+
+	if (num_samples > sizeof(buffer)/sizeof(buffer[0])) {
+		samples = kmalloc(sizeof(*samples) * num_samples, GFP_ATOMIC);
+		if (!samples) {
+			samples = buffer;
+			num_samples = sizeof(buffer)/sizeof(buffer[0]);
+		}
+	} else {
+		samples = buffer;
+	}
+
+	/* run until we have enough valid samples, but do not try forever */
+	i = 0;
+	counter = 0;
+	while (1) {
+		u64 ts;
+		ktime_t start, end;
+
+		start = sync->target();
+		ts = timecounter_read(sync->source);
+		end = sync->target();
+
+		if (!i)
+			start_source = ts;
+
+		/* ignore negative durations */
+		sample.duration_target = ktime_to_ns(ktime_sub(end, start));
+		if (sample.duration_target >= 0) {
+			/*
+			 * assume symetric delay to and from source:
+			 * average target time corresponds to measured
+			 * source time
+			 */
+			sample.offset =
+				ktime_to_ns(ktime_add(end, start)) / 2 -
+				ts;
+
+			/* simple insertion sort based on duration */
+			index = counter - 1;
+			while (index >= 0) {
+				if (samples[index].duration_target <
+				    sample.duration_target)
+					break;
+				samples[index + 1] = samples[index];
+				index--;
+			}
+			samples[index + 1] = sample;
+			counter++;
+		}
+
+		i++;
+		if (counter >= num_samples || i >= 100000) {
+			end_source = ts;
+			break;
+		}
+	}
+
+	*source_tstamp = (end_source + start_source) / 2;
+
+	/* remove outliers by only using 75% of the samples */
+	used = counter * 3 / 4;
+	if (!used)
+		used = counter;
+	if (used) {
+		/* calculate average */
+		s64 off = 0;
+		for (index = 0; index < used; index++)
+			off += samples[index].offset;
+		*offset = div_s64(off, used);
+	}
+
+	if (samples && samples != buffer)
+		kfree(samples);
+
+	return used;
+}
+EXPORT_SYMBOL(timecompare_offset);
+
+void __timecompare_update(struct timecompare *sync,
+			  u64 source_tstamp)
+{
+	s64 offset;
+	u64 average_time;
+
+	if (!timecompare_offset(sync, &offset, &average_time))
+		return;
+
+	if (!sync->last_update) {
+		sync->last_update = average_time;
+		sync->offset = offset;
+		sync->skew = 0;
+	} else {
+		s64 delta_nsec = average_time - sync->last_update;
+
+		/* avoid division by negative or small deltas */
+		if (delta_nsec >= 10000) {
+			s64 delta_offset_nsec = offset - sync->offset;
+			s64 skew; /* delta_offset_nsec *
+				     TIMECOMPARE_SKEW_RESOLUTION /
+				     delta_nsec */
+			u64 divisor;
+
+			/* div_s64() is limited to 32 bit divisor */
+			skew = delta_offset_nsec * TIMECOMPARE_SKEW_RESOLUTION;
+			divisor = delta_nsec;
+			while (unlikely(divisor >= ((s64)1) << 32)) {
+				/* divide both by 2; beware, right shift
+				   of negative value has undefined
+				   behavior and can only be used for
+				   the positive divisor */
+				skew = div_s64(skew, 2);
+				divisor >>= 1;
+			}
+			skew = div_s64(skew, divisor);
+
+			/*
+			 * Calculate new overall skew as 4/16 the
+			 * old value and 12/16 the new one. This is
+			 * a rather arbitrary tradeoff between
+			 * only using the latest measurement (0/16 and
+			 * 16/16) and even more weight on past measurements.
+			 */
+#define TIMECOMPARE_NEW_SKEW_PER_16 12
+			sync->skew =
+				div_s64((16 - TIMECOMPARE_NEW_SKEW_PER_16) *
+					sync->skew +
+					TIMECOMPARE_NEW_SKEW_PER_16 * skew,
+					16);
+			sync->last_update = average_time;
+			sync->offset = offset;
+		}
+	}
+}
+EXPORT_SYMBOL(__timecompare_update);
-- 
cgit v1.2.3


From cb9eff097831007afb30d64373f29d99825d0068 Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:36 +0000
Subject: net: new user space API for time stamping of incoming and outgoing
 packets

User space can request hardware and/or software time stamping.
Reporting of the result(s) via a new control message is enabled
separately for each field in the message because some of the
fields may require additional computation and thus cause overhead.
User space can tell the different kinds of time stamps apart
and choose what suits its needs.

When a TX timestamp operation is requested, the TX skb will be cloned
and the clone will be time stamped (in hardware or software) and added
to the socket error queue of the skb, if the skb has a socket
associated with it.

The actual TX timestamp will reach userspace as a RX timestamp on the
cloned packet. If timestamping is requested and no timestamping is
done in the device driver (potentially this may use hardware
timestamping), it will be done in software after the device's
start_hard_xmit routine.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/timestamping.txt          | 178 +++++++
 Documentation/networking/timestamping/.gitignore   |   1 +
 Documentation/networking/timestamping/Makefile     |   6 +
 .../networking/timestamping/timestamping.c         | 533 +++++++++++++++++++++
 arch/alpha/include/asm/socket.h                    |   3 +
 arch/arm/include/asm/socket.h                      |   3 +
 arch/avr32/include/asm/socket.h                    |   3 +
 arch/blackfin/include/asm/socket.h                 |   3 +
 arch/cris/include/asm/socket.h                     |   3 +
 arch/h8300/include/asm/socket.h                    |   3 +
 arch/ia64/include/asm/socket.h                     |   3 +
 arch/m68k/include/asm/socket.h                     |   3 +
 arch/mips/include/asm/socket.h                     |   3 +
 arch/parisc/include/asm/socket.h                   |   3 +
 arch/powerpc/include/asm/socket.h                  |   3 +
 arch/s390/include/asm/socket.h                     |   3 +
 arch/sh/include/asm/socket.h                       |   3 +
 arch/sparc/include/asm/socket.h                    |   3 +
 arch/x86/include/asm/socket.h                      |   3 +
 arch/xtensa/include/asm/socket.h                   |   3 +
 include/asm-frv/socket.h                           |   3 +
 include/asm-m32r/socket.h                          |   3 +
 include/asm-mn10300/socket.h                       |   3 +
 include/linux/errqueue.h                           |   1 +
 include/linux/net_tstamp.h                         | 104 ++++
 include/linux/sockios.h                            |   3 +
 26 files changed, 883 insertions(+)
 create mode 100644 Documentation/networking/timestamping.txt
 create mode 100644 Documentation/networking/timestamping/.gitignore
 create mode 100644 Documentation/networking/timestamping/Makefile
 create mode 100644 Documentation/networking/timestamping/timestamping.c
 create mode 100644 include/linux/net_tstamp.h

(limited to 'include')

diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt
new file mode 100644
index 000000000000..a681a65b5bc7
--- /dev/null
+++ b/Documentation/networking/timestamping.txt
@@ -0,0 +1,178 @@
+The existing interfaces for getting network packages time stamped are:
+
+* SO_TIMESTAMP
+  Generate time stamp for each incoming packet using the (not necessarily
+  monotonous!) system time. Result is returned via recv_msg() in a
+  control message as timeval (usec resolution).
+
+* SO_TIMESTAMPNS
+  Same time stamping mechanism as SO_TIMESTAMP, but returns result as
+  timespec (nsec resolution).
+
+* IP_MULTICAST_LOOP + SO_TIMESTAMP[NS]
+  Only for multicasts: approximate send time stamp by receiving the looped
+  packet and using its receive time stamp.
+
+The following interface complements the existing ones: receive time
+stamps can be generated and returned for arbitrary packets and much
+closer to the point where the packet is really sent. Time stamps can
+be generated in software (as before) or in hardware (if the hardware
+has such a feature).
+
+SO_TIMESTAMPING:
+
+Instructs the socket layer which kind of information is wanted. The
+parameter is an integer with some of the following bits set. Setting
+other bits is an error and doesn't change the current state.
+
+SOF_TIMESTAMPING_TX_HARDWARE:  try to obtain send time stamp in hardware
+SOF_TIMESTAMPING_TX_SOFTWARE:  if SOF_TIMESTAMPING_TX_HARDWARE is off or
+                               fails, then do it in software
+SOF_TIMESTAMPING_RX_HARDWARE:  return the original, unmodified time stamp
+                               as generated by the hardware
+SOF_TIMESTAMPING_RX_SOFTWARE:  if SOF_TIMESTAMPING_RX_HARDWARE is off or
+                               fails, then do it in software
+SOF_TIMESTAMPING_RAW_HARDWARE: return original raw hardware time stamp
+SOF_TIMESTAMPING_SYS_HARDWARE: return hardware time stamp transformed to
+                               the system time base
+SOF_TIMESTAMPING_SOFTWARE:     return system time stamp generated in
+                               software
+
+SOF_TIMESTAMPING_TX/RX determine how time stamps are generated.
+SOF_TIMESTAMPING_RAW/SYS determine how they are reported in the
+following control message:
+    struct scm_timestamping {
+           struct timespec systime;
+           struct timespec hwtimetrans;
+           struct timespec hwtimeraw;
+    };
+
+recvmsg() can be used to get this control message for regular incoming
+packets. For send time stamps the outgoing packet is looped back to
+the socket's error queue with the send time stamp(s) attached. It can
+be received with recvmsg(flags=MSG_ERRQUEUE). The call returns the
+original outgoing packet data including all headers preprended down to
+and including the link layer, the scm_timestamping control message and
+a sock_extended_err control message with ee_errno==ENOMSG and
+ee_origin==SO_EE_ORIGIN_TIMESTAMPING. A socket with such a pending
+bounced packet is ready for reading as far as select() is concerned.
+
+All three values correspond to the same event in time, but were
+generated in different ways. Each of these values may be empty (= all
+zero), in which case no such value was available. If the application
+is not interested in some of these values, they can be left blank to
+avoid the potential overhead of calculating them.
+
+systime is the value of the system time at that moment. This
+corresponds to the value also returned via SO_TIMESTAMP[NS]. If the
+time stamp was generated by hardware, then this field is
+empty. Otherwise it is filled in if SOF_TIMESTAMPING_SOFTWARE is
+set.
+
+hwtimeraw is the original hardware time stamp. Filled in if
+SOF_TIMESTAMPING_RAW_HARDWARE is set. No assumptions about its
+relation to system time should be made.
+
+hwtimetrans is the hardware time stamp transformed so that it
+corresponds as good as possible to system time. This correlation is
+not perfect; as a consequence, sorting packets received via different
+NICs by their hwtimetrans may differ from the order in which they were
+received. hwtimetrans may be non-monotonic even for the same NIC.
+Filled in if SOF_TIMESTAMPING_SYS_HARDWARE is set. Requires support
+by the network device and will be empty without that support.
+
+
+SIOCSHWTSTAMP:
+
+Hardware time stamping must also be initialized for each device driver
+that is expected to do hardware time stamping. The parameter is:
+
+struct hwtstamp_config {
+    int flags;           /* no flags defined right now, must be zero */
+    int tx_type;         /* HWTSTAMP_TX_* */
+    int rx_filter;       /* HWTSTAMP_FILTER_* */
+};
+
+Desired behavior is passed into the kernel and to a specific device by
+calling ioctl(SIOCSHWTSTAMP) with a pointer to a struct ifreq whose
+ifr_data points to a struct hwtstamp_config. The tx_type and
+rx_filter are hints to the driver what it is expected to do. If
+the requested fine-grained filtering for incoming packets is not
+supported, the driver may time stamp more than just the requested types
+of packets.
+
+A driver which supports hardware time stamping shall update the struct
+with the actual, possibly more permissive configuration. If the
+requested packets cannot be time stamped, then nothing should be
+changed and ERANGE shall be returned (in contrast to EINVAL, which
+indicates that SIOCSHWTSTAMP is not supported at all).
+
+Only a processes with admin rights may change the configuration. User
+space is responsible to ensure that multiple processes don't interfere
+with each other and that the settings are reset.
+
+/* possible values for hwtstamp_config->tx_type */
+enum {
+	/*
+	 * no outgoing packet will need hardware time stamping;
+	 * should a packet arrive which asks for it, no hardware
+	 * time stamping will be done
+	 */
+	HWTSTAMP_TX_OFF,
+
+	/*
+	 * enables hardware time stamping for outgoing packets;
+	 * the sender of the packet decides which are to be
+	 * time stamped by setting SOF_TIMESTAMPING_TX_SOFTWARE
+	 * before sending the packet
+	 */
+	HWTSTAMP_TX_ON,
+};
+
+/* possible values for hwtstamp_config->rx_filter */
+enum {
+	/* time stamp no incoming packet at all */
+	HWTSTAMP_FILTER_NONE,
+
+	/* time stamp any incoming packet */
+	HWTSTAMP_FILTER_ALL,
+
+        /* return value: time stamp all packets requested plus some others */
+        HWTSTAMP_FILTER_SOME,
+
+	/* PTP v1, UDP, any kind of event packet */
+	HWTSTAMP_FILTER_PTP_V1_L4_EVENT,
+
+        ...
+};
+
+
+DEVICE IMPLEMENTATION
+
+A driver which supports hardware time stamping must support the
+SIOCSHWTSTAMP ioctl. Time stamps for received packets must be stored
+in the skb with skb_hwtstamp_set().
+
+Time stamps for outgoing packets are to be generated as follows:
+- In hard_start_xmit(), check if skb_hwtstamp_check_tx_hardware()
+  returns non-zero. If yes, then the driver is expected
+  to do hardware time stamping.
+- If this is possible for the skb and requested, then declare
+  that the driver is doing the time stamping by calling
+  skb_hwtstamp_tx_in_progress(). A driver not supporting
+  hardware time stamping doesn't do that. A driver must never
+  touch sk_buff::tstamp! It is used to store how time stamping
+  for an outgoing packets is to be done.
+- As soon as the driver has sent the packet and/or obtained a
+  hardware time stamp for it, it passes the time stamp back by
+  calling skb_hwtstamp_tx() with the original skb, the raw
+  hardware time stamp and a handle to the device (necessary
+  to convert the hardware time stamp to system time). If obtaining
+  the hardware time stamp somehow fails, then the driver should
+  not fall back to software time stamping. The rationale is that
+  this would occur at a later time in the processing pipeline
+  than other software time stamping and therefore could lead
+  to unexpected deltas between time stamps.
+- If the driver did not call skb_hwtstamp_tx_in_progress(), then
+  dev_hard_start_xmit() checks whether software time stamping
+  is wanted as fallback and potentially generates the time stamp.
diff --git a/Documentation/networking/timestamping/.gitignore b/Documentation/networking/timestamping/.gitignore
new file mode 100644
index 000000000000..71e81eb2e22f
--- /dev/null
+++ b/Documentation/networking/timestamping/.gitignore
@@ -0,0 +1 @@
+timestamping
diff --git a/Documentation/networking/timestamping/Makefile b/Documentation/networking/timestamping/Makefile
new file mode 100644
index 000000000000..2a1489fdc036
--- /dev/null
+++ b/Documentation/networking/timestamping/Makefile
@@ -0,0 +1,6 @@
+CPPFLAGS = -I../../../include
+
+timestamping: timestamping.c
+
+clean:
+	rm -f timestamping
diff --git a/Documentation/networking/timestamping/timestamping.c b/Documentation/networking/timestamping/timestamping.c
new file mode 100644
index 000000000000..43d143104210
--- /dev/null
+++ b/Documentation/networking/timestamping/timestamping.c
@@ -0,0 +1,533 @@
+/*
+ * This program demonstrates how the various time stamping features in
+ * the Linux kernel work. It emulates the behavior of a PTP
+ * implementation in stand-alone master mode by sending PTPv1 Sync
+ * multicasts once every second. It looks for similar packets, but
+ * beyond that doesn't actually implement PTP.
+ *
+ * Outgoing packets are time stamped with SO_TIMESTAMPING with or
+ * without hardware support.
+ *
+ * Incoming packets are time stamped with SO_TIMESTAMPING with or
+ * without hardware support, SIOCGSTAMP[NS] (per-socket time stamp) and
+ * SO_TIMESTAMP[NS].
+ *
+ * Copyright (C) 2009 Intel Corporation.
+ * Author: Patrick Ohly <patrick.ohly@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/select.h>
+#include <sys/ioctl.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include "asm/types.h"
+#include "linux/net_tstamp.h"
+#include "linux/errqueue.h"
+
+#ifndef SO_TIMESTAMPING
+# define SO_TIMESTAMPING         37
+# define SCM_TIMESTAMPING        SO_TIMESTAMPING
+#endif
+
+#ifndef SO_TIMESTAMPNS
+# define SO_TIMESTAMPNS 35
+#endif
+
+#ifndef SIOCGSTAMPNS
+# define SIOCGSTAMPNS 0x8907
+#endif
+
+#ifndef SIOCSHWTSTAMP
+# define SIOCSHWTSTAMP 0x89b0
+#endif
+
+static void usage(const char *error)
+{
+	if (error)
+		printf("invalid option: %s\n", error);
+	printf("timestamping interface option*\n\n"
+	       "Options:\n"
+	       "  IP_MULTICAST_LOOP - looping outgoing multicasts\n"
+	       "  SO_TIMESTAMP - normal software time stamping, ms resolution\n"
+	       "  SO_TIMESTAMPNS - more accurate software time stamping\n"
+	       "  SOF_TIMESTAMPING_TX_HARDWARE - hardware time stamping of outgoing packets\n"
+	       "  SOF_TIMESTAMPING_TX_SOFTWARE - software fallback for outgoing packets\n"
+	       "  SOF_TIMESTAMPING_RX_HARDWARE - hardware time stamping of incoming packets\n"
+	       "  SOF_TIMESTAMPING_RX_SOFTWARE - software fallback for incoming packets\n"
+	       "  SOF_TIMESTAMPING_SOFTWARE - request reporting of software time stamps\n"
+	       "  SOF_TIMESTAMPING_SYS_HARDWARE - request reporting of transformed HW time stamps\n"
+	       "  SOF_TIMESTAMPING_RAW_HARDWARE - request reporting of raw HW time stamps\n"
+	       "  SIOCGSTAMP - check last socket time stamp\n"
+	       "  SIOCGSTAMPNS - more accurate socket time stamp\n");
+	exit(1);
+}
+
+static void bail(const char *error)
+{
+	printf("%s: %s\n", error, strerror(errno));
+	exit(1);
+}
+
+static const unsigned char sync[] = {
+	0x00, 0x01, 0x00, 0x01,
+	0x5f, 0x44, 0x46, 0x4c,
+	0x54, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x01, 0x01,
+
+	/* fake uuid */
+	0x00, 0x01,
+	0x02, 0x03, 0x04, 0x05,
+
+	0x00, 0x01, 0x00, 0x37,
+	0x00, 0x00, 0x00, 0x08,
+	0x00, 0x00, 0x00, 0x00,
+	0x49, 0x05, 0xcd, 0x01,
+	0x29, 0xb1, 0x8d, 0xb0,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x01,
+
+	/* fake uuid */
+	0x00, 0x01,
+	0x02, 0x03, 0x04, 0x05,
+
+	0x00, 0x00, 0x00, 0x37,
+	0x00, 0x00, 0x00, 0x04,
+	0x44, 0x46, 0x4c, 0x54,
+	0x00, 0x00, 0xf0, 0x60,
+	0x00, 0x01, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0xf0, 0x60,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x04,
+	0x44, 0x46, 0x4c, 0x54,
+	0x00, 0x01,
+
+	/* fake uuid */
+	0x00, 0x01,
+	0x02, 0x03, 0x04, 0x05,
+
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00
+};
+
+static void sendpacket(int sock, struct sockaddr *addr, socklen_t addr_len)
+{
+	struct timeval now;
+	int res;
+
+	res = sendto(sock, sync, sizeof(sync), 0,
+		addr, addr_len);
+	gettimeofday(&now, 0);
+	if (res < 0)
+		printf("%s: %s\n", "send", strerror(errno));
+	else
+		printf("%ld.%06ld: sent %d bytes\n",
+		       (long)now.tv_sec, (long)now.tv_usec,
+		       res);
+}
+
+static void printpacket(struct msghdr *msg, int res,
+			char *data,
+			int sock, int recvmsg_flags,
+			int siocgstamp, int siocgstampns)
+{
+	struct sockaddr_in *from_addr = (struct sockaddr_in *)msg->msg_name;
+	struct cmsghdr *cmsg;
+	struct timeval tv;
+	struct timespec ts;
+	struct timeval now;
+
+	gettimeofday(&now, 0);
+
+	printf("%ld.%06ld: received %s data, %d bytes from %s, %d bytes control messages\n",
+	       (long)now.tv_sec, (long)now.tv_usec,
+	       (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
+	       res,
+	       inet_ntoa(from_addr->sin_addr),
+	       msg->msg_controllen);
+	for (cmsg = CMSG_FIRSTHDR(msg);
+	     cmsg;
+	     cmsg = CMSG_NXTHDR(msg, cmsg)) {
+		printf("   cmsg len %d: ", cmsg->cmsg_len);
+		switch (cmsg->cmsg_level) {
+		case SOL_SOCKET:
+			printf("SOL_SOCKET ");
+			switch (cmsg->cmsg_type) {
+			case SO_TIMESTAMP: {
+				struct timeval *stamp =
+					(struct timeval *)CMSG_DATA(cmsg);
+				printf("SO_TIMESTAMP %ld.%06ld",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_usec);
+				break;
+			}
+			case SO_TIMESTAMPNS: {
+				struct timespec *stamp =
+					(struct timespec *)CMSG_DATA(cmsg);
+				printf("SO_TIMESTAMPNS %ld.%09ld",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_nsec);
+				break;
+			}
+			case SO_TIMESTAMPING: {
+				struct timespec *stamp =
+					(struct timespec *)CMSG_DATA(cmsg);
+				printf("SO_TIMESTAMPING ");
+				printf("SW %ld.%09ld ",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_nsec);
+				stamp++;
+				printf("HW transformed %ld.%09ld ",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_nsec);
+				stamp++;
+				printf("HW raw %ld.%09ld",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_nsec);
+				break;
+			}
+			default:
+				printf("type %d", cmsg->cmsg_type);
+				break;
+			}
+			break;
+		case IPPROTO_IP:
+			printf("IPPROTO_IP ");
+			switch (cmsg->cmsg_type) {
+			case IP_RECVERR: {
+				struct sock_extended_err *err =
+					(struct sock_extended_err *)CMSG_DATA(cmsg);
+				printf("IP_RECVERR ee_errno '%s' ee_origin %d => %s",
+					strerror(err->ee_errno),
+					err->ee_origin,
+#ifdef SO_EE_ORIGIN_TIMESTAMPING
+					err->ee_origin == SO_EE_ORIGIN_TIMESTAMPING ?
+					"bounced packet" : "unexpected origin"
+#else
+					"probably SO_EE_ORIGIN_TIMESTAMPING"
+#endif
+					);
+				if (res < sizeof(sync))
+					printf(" => truncated data?!");
+				else if (!memcmp(sync, data + res - sizeof(sync),
+							sizeof(sync)))
+					printf(" => GOT OUR DATA BACK (HURRAY!)");
+				break;
+			}
+			case IP_PKTINFO: {
+				struct in_pktinfo *pktinfo =
+					(struct in_pktinfo *)CMSG_DATA(cmsg);
+				printf("IP_PKTINFO interface index %u",
+					pktinfo->ipi_ifindex);
+				break;
+			}
+			default:
+				printf("type %d", cmsg->cmsg_type);
+				break;
+			}
+			break;
+		default:
+			printf("level %d type %d",
+				cmsg->cmsg_level,
+				cmsg->cmsg_type);
+			break;
+		}
+		printf("\n");
+	}
+
+	if (siocgstamp) {
+		if (ioctl(sock, SIOCGSTAMP, &tv))
+			printf("   %s: %s\n", "SIOCGSTAMP", strerror(errno));
+		else
+			printf("SIOCGSTAMP %ld.%06ld\n",
+			       (long)tv.tv_sec,
+			       (long)tv.tv_usec);
+	}
+	if (siocgstampns) {
+		if (ioctl(sock, SIOCGSTAMPNS, &ts))
+			printf("   %s: %s\n", "SIOCGSTAMPNS", strerror(errno));
+		else
+			printf("SIOCGSTAMPNS %ld.%09ld\n",
+			       (long)ts.tv_sec,
+			       (long)ts.tv_nsec);
+	}
+}
+
+static void recvpacket(int sock, int recvmsg_flags,
+		       int siocgstamp, int siocgstampns)
+{
+	char data[256];
+	struct msghdr msg;
+	struct iovec entry;
+	struct sockaddr_in from_addr;
+	struct {
+		struct cmsghdr cm;
+		char control[512];
+	} control;
+	int res;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.msg_iov = &entry;
+	msg.msg_iovlen = 1;
+	entry.iov_base = data;
+	entry.iov_len = sizeof(data);
+	msg.msg_name = (caddr_t)&from_addr;
+	msg.msg_namelen = sizeof(from_addr);
+	msg.msg_control = &control;
+	msg.msg_controllen = sizeof(control);
+
+	res = recvmsg(sock, &msg, recvmsg_flags|MSG_DONTWAIT);
+	if (res < 0) {
+		printf("%s %s: %s\n",
+		       "recvmsg",
+		       (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
+		       strerror(errno));
+	} else {
+		printpacket(&msg, res, data,
+			    sock, recvmsg_flags,
+			    siocgstamp, siocgstampns);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	int so_timestamping_flags = 0;
+	int so_timestamp = 0;
+	int so_timestampns = 0;
+	int siocgstamp = 0;
+	int siocgstampns = 0;
+	int ip_multicast_loop = 0;
+	char *interface;
+	int i;
+	int enabled = 1;
+	int sock;
+	struct ifreq device;
+	struct ifreq hwtstamp;
+	struct hwtstamp_config hwconfig, hwconfig_requested;
+	struct sockaddr_in addr;
+	struct ip_mreq imr;
+	struct in_addr iaddr;
+	int val;
+	socklen_t len;
+	struct timeval next;
+
+	if (argc < 2)
+		usage(0);
+	interface = argv[1];
+
+	for (i = 2; i < argc; i++) {
+		if (!strcasecmp(argv[i], "SO_TIMESTAMP"))
+			so_timestamp = 1;
+		else if (!strcasecmp(argv[i], "SO_TIMESTAMPNS"))
+			so_timestampns = 1;
+		else if (!strcasecmp(argv[i], "SIOCGSTAMP"))
+			siocgstamp = 1;
+		else if (!strcasecmp(argv[i], "SIOCGSTAMPNS"))
+			siocgstampns = 1;
+		else if (!strcasecmp(argv[i], "IP_MULTICAST_LOOP"))
+			ip_multicast_loop = 1;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_HARDWARE"))
+			so_timestamping_flags |= SOF_TIMESTAMPING_TX_HARDWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_SOFTWARE"))
+			so_timestamping_flags |= SOF_TIMESTAMPING_TX_SOFTWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_HARDWARE"))
+			so_timestamping_flags |= SOF_TIMESTAMPING_RX_HARDWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_SOFTWARE"))
+			so_timestamping_flags |= SOF_TIMESTAMPING_RX_SOFTWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_SOFTWARE"))
+			so_timestamping_flags |= SOF_TIMESTAMPING_SOFTWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_SYS_HARDWARE"))
+			so_timestamping_flags |= SOF_TIMESTAMPING_SYS_HARDWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RAW_HARDWARE"))
+			so_timestamping_flags |= SOF_TIMESTAMPING_RAW_HARDWARE;
+		else
+			usage(argv[i]);
+	}
+
+	sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
+	if (socket < 0)
+		bail("socket");
+
+	memset(&device, 0, sizeof(device));
+	strncpy(device.ifr_name, interface, sizeof(device.ifr_name));
+	if (ioctl(sock, SIOCGIFADDR, &device) < 0)
+		bail("getting interface IP address");
+
+	memset(&hwtstamp, 0, sizeof(hwtstamp));
+	strncpy(hwtstamp.ifr_name, interface, sizeof(hwtstamp.ifr_name));
+	hwtstamp.ifr_data = (void *)&hwconfig;
+	memset(&hwconfig, 0, sizeof(&hwconfig));
+	hwconfig.tx_type =
+		(so_timestamping_flags & SOF_TIMESTAMPING_TX_HARDWARE) ?
+		HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
+	hwconfig.rx_filter =
+		(so_timestamping_flags & SOF_TIMESTAMPING_RX_HARDWARE) ?
+		HWTSTAMP_FILTER_PTP_V1_L4_SYNC : HWTSTAMP_FILTER_NONE;
+	hwconfig_requested = hwconfig;
+	if (ioctl(sock, SIOCSHWTSTAMP, &hwtstamp) < 0) {
+		if ((errno == EINVAL || errno == ENOTSUP) &&
+		    hwconfig_requested.tx_type == HWTSTAMP_TX_OFF &&
+		    hwconfig_requested.rx_filter == HWTSTAMP_FILTER_NONE)
+			printf("SIOCSHWTSTAMP: disabling hardware time stamping not possible\n");
+		else
+			bail("SIOCSHWTSTAMP");
+	}
+	printf("SIOCSHWTSTAMP: tx_type %d requested, got %d; rx_filter %d requested, got %d\n",
+	       hwconfig_requested.tx_type, hwconfig.tx_type,
+	       hwconfig_requested.rx_filter, hwconfig.rx_filter);
+
+	/* bind to PTP port */
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	addr.sin_port = htons(319 /* PTP event port */);
+	if (bind(sock,
+		 (struct sockaddr *)&addr,
+		 sizeof(struct sockaddr_in)) < 0)
+		bail("bind");
+
+	/* set multicast group for outgoing packets */
+	inet_aton("224.0.1.130", &iaddr); /* alternate PTP domain 1 */
+	addr.sin_addr = iaddr;
+	imr.imr_multiaddr.s_addr = iaddr.s_addr;
+	imr.imr_interface.s_addr =
+		((struct sockaddr_in *)&device.ifr_addr)->sin_addr.s_addr;
+	if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF,
+		       &imr.imr_interface.s_addr, sizeof(struct in_addr)) < 0)
+		bail("set multicast");
+
+	/* join multicast group, loop our own packet */
+	if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+		       &imr, sizeof(struct ip_mreq)) < 0)
+		bail("join multicast group");
+
+	if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_LOOP,
+		       &ip_multicast_loop, sizeof(enabled)) < 0) {
+		bail("loop multicast");
+	}
+
+	/* set socket options for time stamping */
+	if (so_timestamp &&
+		setsockopt(sock, SOL_SOCKET, SO_TIMESTAMP,
+			   &enabled, sizeof(enabled)) < 0)
+		bail("setsockopt SO_TIMESTAMP");
+
+	if (so_timestampns &&
+		setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS,
+			   &enabled, sizeof(enabled)) < 0)
+		bail("setsockopt SO_TIMESTAMPNS");
+
+	if (so_timestamping_flags &&
+		setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING,
+			   &so_timestamping_flags,
+			   sizeof(so_timestamping_flags)) < 0)
+		bail("setsockopt SO_TIMESTAMPING");
+
+	/* request IP_PKTINFO for debugging purposes */
+	if (setsockopt(sock, SOL_IP, IP_PKTINFO,
+		       &enabled, sizeof(enabled)) < 0)
+		printf("%s: %s\n", "setsockopt IP_PKTINFO", strerror(errno));
+
+	/* verify socket options */
+	len = sizeof(val);
+	if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMP, &val, &len) < 0)
+		printf("%s: %s\n", "getsockopt SO_TIMESTAMP", strerror(errno));
+	else
+		printf("SO_TIMESTAMP %d\n", val);
+
+	if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS, &val, &len) < 0)
+		printf("%s: %s\n", "getsockopt SO_TIMESTAMPNS",
+		       strerror(errno));
+	else
+		printf("SO_TIMESTAMPNS %d\n", val);
+
+	if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING, &val, &len) < 0) {
+		printf("%s: %s\n", "getsockopt SO_TIMESTAMPING",
+		       strerror(errno));
+	} else {
+		printf("SO_TIMESTAMPING %d\n", val);
+		if (val != so_timestamping_flags)
+			printf("   not the expected value %d\n",
+			       so_timestamping_flags);
+	}
+
+	/* send packets forever every five seconds */
+	gettimeofday(&next, 0);
+	next.tv_sec = (next.tv_sec + 1) / 5 * 5;
+	next.tv_usec = 0;
+	while (1) {
+		struct timeval now;
+		struct timeval delta;
+		long delta_us;
+		int res;
+		fd_set readfs, errorfs;
+
+		gettimeofday(&now, 0);
+		delta_us = (long)(next.tv_sec - now.tv_sec) * 1000000 +
+			(long)(next.tv_usec - now.tv_usec);
+		if (delta_us > 0) {
+			/* continue waiting for timeout or data */
+			delta.tv_sec = delta_us / 1000000;
+			delta.tv_usec = delta_us % 1000000;
+
+			FD_ZERO(&readfs);
+			FD_ZERO(&errorfs);
+			FD_SET(sock, &readfs);
+			FD_SET(sock, &errorfs);
+			printf("%ld.%06ld: select %ldus\n",
+			       (long)now.tv_sec, (long)now.tv_usec,
+			       delta_us);
+			res = select(sock + 1, &readfs, 0, &errorfs, &delta);
+			gettimeofday(&now, 0);
+			printf("%ld.%06ld: select returned: %d, %s\n",
+			       (long)now.tv_sec, (long)now.tv_usec,
+			       res,
+			       res < 0 ? strerror(errno) : "success");
+			if (res > 0) {
+				if (FD_ISSET(sock, &readfs))
+					printf("ready for reading\n");
+				if (FD_ISSET(sock, &errorfs))
+					printf("has error\n");
+				recvpacket(sock, 0,
+					   siocgstamp,
+					   siocgstampns);
+				recvpacket(sock, MSG_ERRQUEUE,
+					   siocgstamp,
+					   siocgstampns);
+			}
+		} else {
+			/* write one packet */
+			sendpacket(sock,
+				   (struct sockaddr *)&addr,
+				   sizeof(addr));
+			next.tv_sec += 5;
+			continue;
+		}
+	}
+
+	return 0;
+}
diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h
index a1057c2d95e7..3641ec1452f4 100644
--- a/arch/alpha/include/asm/socket.h
+++ b/arch/alpha/include/asm/socket.h
@@ -62,6 +62,9 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
diff --git a/arch/arm/include/asm/socket.h b/arch/arm/include/asm/socket.h
index 6817be9573a6..537de4e0ef50 100644
--- a/arch/arm/include/asm/socket.h
+++ b/arch/arm/include/asm/socket.h
@@ -54,4 +54,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/avr32/include/asm/socket.h b/arch/avr32/include/asm/socket.h
index 35863f260929..04c860619700 100644
--- a/arch/avr32/include/asm/socket.h
+++ b/arch/avr32/include/asm/socket.h
@@ -54,4 +54,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* __ASM_AVR32_SOCKET_H */
diff --git a/arch/blackfin/include/asm/socket.h b/arch/blackfin/include/asm/socket.h
index 2ca702e44d47..fac7fe9e1f8a 100644
--- a/arch/blackfin/include/asm/socket.h
+++ b/arch/blackfin/include/asm/socket.h
@@ -53,4 +53,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif				/* _ASM_SOCKET_H */
diff --git a/arch/cris/include/asm/socket.h b/arch/cris/include/asm/socket.h
index 9df0ca82f5de..d5cf74005408 100644
--- a/arch/cris/include/asm/socket.h
+++ b/arch/cris/include/asm/socket.h
@@ -56,6 +56,9 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_SOCKET_H */
 
 
diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h
index da2520dbf254..602518a70a1a 100644
--- a/arch/h8300/include/asm/socket.h
+++ b/arch/h8300/include/asm/socket.h
@@ -54,4 +54,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/ia64/include/asm/socket.h b/arch/ia64/include/asm/socket.h
index d5ef0aa3e312..745421225ec6 100644
--- a/arch/ia64/include/asm/socket.h
+++ b/arch/ia64/include/asm/socket.h
@@ -63,4 +63,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_IA64_SOCKET_H */
diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/asm/socket.h
index dbc64e92c41a..ca87f938b03f 100644
--- a/arch/m68k/include/asm/socket.h
+++ b/arch/m68k/include/asm/socket.h
@@ -54,4 +54,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/mips/include/asm/socket.h b/arch/mips/include/asm/socket.h
index facc2d7a87ca..2abca1780169 100644
--- a/arch/mips/include/asm/socket.h
+++ b/arch/mips/include/asm/socket.h
@@ -75,6 +75,9 @@ To add: #define SO_REUSEPORT 0x0200	/* Allow local address and port reuse.  */
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #ifdef __KERNEL__
 
 /** sock_type - Socket types
diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
index fba402c95ac2..885472bf7b78 100644
--- a/arch/parisc/include/asm/socket.h
+++ b/arch/parisc/include/asm/socket.h
@@ -54,6 +54,9 @@
 
 #define SO_MARK			0x401f
 
+#define SO_TIMESTAMPING		0x4020
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h
index f5a4e168e498..1e5cfad0e3f7 100644
--- a/arch/powerpc/include/asm/socket.h
+++ b/arch/powerpc/include/asm/socket.h
@@ -61,4 +61,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif	/* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h
index c786ab623b2d..02330c50241b 100644
--- a/arch/s390/include/asm/socket.h
+++ b/arch/s390/include/asm/socket.h
@@ -62,4 +62,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/sh/include/asm/socket.h b/arch/sh/include/asm/socket.h
index 6d4bf6512959..345653b96826 100644
--- a/arch/sh/include/asm/socket.h
+++ b/arch/sh/include/asm/socket.h
@@ -54,4 +54,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* __ASM_SH_SOCKET_H */
diff --git a/arch/sparc/include/asm/socket.h b/arch/sparc/include/asm/socket.h
index bf50d0c2d583..982a12f959f4 100644
--- a/arch/sparc/include/asm/socket.h
+++ b/arch/sparc/include/asm/socket.h
@@ -50,6 +50,9 @@
 
 #define SO_MARK			0x0022
 
+#define SO_TIMESTAMPING		0x0023
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION		0x5001
 #define SO_SECURITY_ENCRYPTION_TRANSPORT	0x5002
diff --git a/arch/x86/include/asm/socket.h b/arch/x86/include/asm/socket.h
index 8ab9cc8b2ecc..ca8bf2cd0ba9 100644
--- a/arch/x86/include/asm/socket.h
+++ b/arch/x86/include/asm/socket.h
@@ -54,4 +54,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_X86_SOCKET_H */
diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h
index 6100682b1da2..dd1a7a4a1cea 100644
--- a/arch/xtensa/include/asm/socket.h
+++ b/arch/xtensa/include/asm/socket.h
@@ -65,4 +65,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif	/* _XTENSA_SOCKET_H */
diff --git a/include/asm-frv/socket.h b/include/asm-frv/socket.h
index e51ca67b9356..57c3d4054e8b 100644
--- a/include/asm-frv/socket.h
+++ b/include/asm-frv/socket.h
@@ -54,5 +54,8 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_SOCKET_H */
 
diff --git a/include/asm-m32r/socket.h b/include/asm-m32r/socket.h
index 9a0e20012224..be7ed589af5c 100644
--- a/include/asm-m32r/socket.h
+++ b/include/asm-m32r/socket.h
@@ -54,4 +54,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_M32R_SOCKET_H */
diff --git a/include/asm-mn10300/socket.h b/include/asm-mn10300/socket.h
index 80af9c4ccad7..fb5daf438ec9 100644
--- a/include/asm-mn10300/socket.h
+++ b/include/asm-mn10300/socket.h
@@ -54,4 +54,7 @@
 
 #define SO_MARK			36
 
+#define SO_TIMESTAMPING		37
+#define SCM_TIMESTAMPING	SO_TIMESTAMPING
+
 #endif /* _ASM_SOCKET_H */
diff --git a/include/linux/errqueue.h b/include/linux/errqueue.h
index ceb1454b6977..ec12cc74366f 100644
--- a/include/linux/errqueue.h
+++ b/include/linux/errqueue.h
@@ -18,6 +18,7 @@ struct sock_extended_err
 #define SO_EE_ORIGIN_LOCAL	1
 #define SO_EE_ORIGIN_ICMP	2
 #define SO_EE_ORIGIN_ICMP6	3
+#define SO_EE_ORIGIN_TIMESTAMPING 4
 
 #define SO_EE_OFFENDER(ee)	((struct sockaddr*)((ee)+1))
 
diff --git a/include/linux/net_tstamp.h b/include/linux/net_tstamp.h
new file mode 100644
index 000000000000..a3b8546354ac
--- /dev/null
+++ b/include/linux/net_tstamp.h
@@ -0,0 +1,104 @@
+/*
+ * Userspace API for hardware time stamping of network packets
+ *
+ * Copyright (C) 2008,2009 Intel Corporation
+ * Author: Patrick Ohly <patrick.ohly@intel.com>
+ *
+ */
+
+#ifndef _NET_TIMESTAMPING_H
+#define _NET_TIMESTAMPING_H
+
+#include <linux/socket.h>   /* for SO_TIMESTAMPING */
+
+/* SO_TIMESTAMPING gets an integer bit field comprised of these values */
+enum {
+	SOF_TIMESTAMPING_TX_HARDWARE = (1<<0),
+	SOF_TIMESTAMPING_TX_SOFTWARE = (1<<1),
+	SOF_TIMESTAMPING_RX_HARDWARE = (1<<2),
+	SOF_TIMESTAMPING_RX_SOFTWARE = (1<<3),
+	SOF_TIMESTAMPING_SOFTWARE = (1<<4),
+	SOF_TIMESTAMPING_SYS_HARDWARE = (1<<5),
+	SOF_TIMESTAMPING_RAW_HARDWARE = (1<<6),
+	SOF_TIMESTAMPING_MASK =
+	(SOF_TIMESTAMPING_RAW_HARDWARE - 1) |
+	SOF_TIMESTAMPING_RAW_HARDWARE
+};
+
+/**
+ * struct hwtstamp_config - %SIOCSHWTSTAMP parameter
+ *
+ * @flags:	no flags defined right now, must be zero
+ * @tx_type:	one of HWTSTAMP_TX_*
+ * @rx_type:	one of one of HWTSTAMP_FILTER_*
+ *
+ * %SIOCSHWTSTAMP expects a &struct ifreq with a ifr_data pointer to
+ * this structure. dev_ifsioc() in the kernel takes care of the
+ * translation between 32 bit userspace and 64 bit kernel. The
+ * structure is intentionally chosen so that it has the same layout on
+ * 32 and 64 bit systems, don't break this!
+ */
+struct hwtstamp_config {
+	int flags;
+	int tx_type;
+	int rx_filter;
+};
+
+/* possible values for hwtstamp_config->tx_type */
+enum {
+	/*
+	 * No outgoing packet will need hardware time stamping;
+	 * should a packet arrive which asks for it, no hardware
+	 * time stamping will be done.
+	 */
+	HWTSTAMP_TX_OFF,
+
+	/*
+	 * Enables hardware time stamping for outgoing packets;
+	 * the sender of the packet decides which are to be
+	 * time stamped by setting %SOF_TIMESTAMPING_TX_SOFTWARE
+	 * before sending the packet.
+	 */
+	HWTSTAMP_TX_ON,
+};
+
+/* possible values for hwtstamp_config->rx_filter */
+enum {
+	/* time stamp no incoming packet at all */
+	HWTSTAMP_FILTER_NONE,
+
+	/* time stamp any incoming packet */
+	HWTSTAMP_FILTER_ALL,
+
+	/* return value: time stamp all packets requested plus some others */
+	HWTSTAMP_FILTER_SOME,
+
+	/* PTP v1, UDP, any kind of event packet */
+	HWTSTAMP_FILTER_PTP_V1_L4_EVENT,
+	/* PTP v1, UDP, Sync packet */
+	HWTSTAMP_FILTER_PTP_V1_L4_SYNC,
+	/* PTP v1, UDP, Delay_req packet */
+	HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ,
+	/* PTP v2, UDP, any kind of event packet */
+	HWTSTAMP_FILTER_PTP_V2_L4_EVENT,
+	/* PTP v2, UDP, Sync packet */
+	HWTSTAMP_FILTER_PTP_V2_L4_SYNC,
+	/* PTP v2, UDP, Delay_req packet */
+	HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ,
+
+	/* 802.AS1, Ethernet, any kind of event packet */
+	HWTSTAMP_FILTER_PTP_V2_L2_EVENT,
+	/* 802.AS1, Ethernet, Sync packet */
+	HWTSTAMP_FILTER_PTP_V2_L2_SYNC,
+	/* 802.AS1, Ethernet, Delay_req packet */
+	HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ,
+
+	/* PTP v2/802.AS1, any layer, any kind of event packet */
+	HWTSTAMP_FILTER_PTP_V2_EVENT,
+	/* PTP v2/802.AS1, any layer, Sync packet */
+	HWTSTAMP_FILTER_PTP_V2_SYNC,
+	/* PTP v2/802.AS1, any layer, Delay_req packet */
+	HWTSTAMP_FILTER_PTP_V2_DELAY_REQ,
+};
+
+#endif /* _NET_TIMESTAMPING_H */
diff --git a/include/linux/sockios.h b/include/linux/sockios.h
index abef7596655a..241f179347d9 100644
--- a/include/linux/sockios.h
+++ b/include/linux/sockios.h
@@ -122,6 +122,9 @@
 #define SIOCBRADDIF	0x89a2		/* add interface to bridge      */
 #define SIOCBRDELIF	0x89a3		/* remove interface from bridge */
 
+/* hardware time stamping: parameters in linux/net_tstamp.h */
+#define SIOCSHWTSTAMP   0x89b0
+
 /* Device private ioctl calls */
 
 /*
-- 
cgit v1.2.3


From ac45f602ee3d1b6f326f68bc0c2591ceebf05ba4 Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:37 +0000
Subject: net: infrastructure for hardware time stamping

The additional per-packet information (16 bytes for time stamps, 1
byte for flags) is stored for all packets in the skb_shared_info
struct. This implementation detail is hidden from users of that
information via skb_* accessor functions. A separate struct resp.
union is used for the additional information so that it can be
stored/copied easily outside of skb_shared_info.

Compared to previous implementations (reusing the tstamp field
depending on the context, optional additional structures) this
is the simplest solution. It does not extend sk_buff itself.

TX time stamping is implemented in software if the device driver
doesn't support hardware time stamping.

The new semantic for hardware/software time stamping around
ndo_start_xmit() is based on two assumptions about existing
network device drivers which don't support hardware time
stamping and know nothing about it:
 - they leave the new skb_shared_tx unmodified
 - the keep the connection to the originating socket in skb->sk
   alive, i.e., don't call skb_orphan()

Given that skb_shared_tx is new, the first assumption is safe.
The second is only true for some drivers. As a result, software
TX time stamping currently works with the bnx2 driver, but not
with the unmodified igb driver (the two drivers this patch series
was tested with).

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 91 +++++++++++++++++++++++++++++++++++++++++++++++++-
 net/core/dev.c         | 32 ++++++++++++++++--
 net/core/skbuff.c      | 41 +++++++++++++++++++++++
 3 files changed, 161 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 924700844580..f96bc91bf0a3 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -132,6 +132,57 @@ struct skb_frag_struct {
 	__u32 size;
 };
 
+#define HAVE_HW_TIME_STAMP
+
+/**
+ * skb_shared_hwtstamps - hardware time stamps
+ *
+ * @hwtstamp:	hardware time stamp transformed into duration
+ *		since arbitrary point in time
+ * @syststamp:	hwtstamp transformed to system time base
+ *
+ * Software time stamps generated by ktime_get_real() are stored in
+ * skb->tstamp. The relation between the different kinds of time
+ * stamps is as follows:
+ *
+ * syststamp and tstamp can be compared against each other in
+ * arbitrary combinations.  The accuracy of a
+ * syststamp/tstamp/"syststamp from other device" comparison is
+ * limited by the accuracy of the transformation into system time
+ * base. This depends on the device driver and its underlying
+ * hardware.
+ *
+ * hwtstamps can only be compared against other hwtstamps from
+ * the same device.
+ *
+ * This structure is attached to packets as part of the
+ * &skb_shared_info. Use skb_hwtstamps() to get a pointer.
+ */
+struct skb_shared_hwtstamps {
+	ktime_t	hwtstamp;
+	ktime_t	syststamp;
+};
+
+/**
+ * skb_shared_tx - instructions for time stamping of outgoing packets
+ *
+ * @hardware:		generate hardware time stamp
+ * @software:		generate software time stamp
+ * @in_progress:	device driver is going to provide
+ *			hardware time stamp
+ *
+ * These flags are attached to packets as part of the
+ * &skb_shared_info. Use skb_tx() to get a pointer.
+ */
+union skb_shared_tx {
+	struct {
+		__u8	hardware:1,
+			software:1,
+			in_progress:1;
+	};
+	__u8 flags;
+};
+
 /* This data is invariant across clones and lives at
  * the end of the header data, ie. at skb->end.
  */
@@ -143,10 +194,12 @@ struct skb_shared_info {
 	unsigned short	gso_segs;
 	unsigned short  gso_type;
 	__be32          ip6_frag_id;
+	union skb_shared_tx tx_flags;
 #ifdef CONFIG_HAS_DMA
 	unsigned int	num_dma_maps;
 #endif
 	struct sk_buff	*frag_list;
+	struct skb_shared_hwtstamps hwtstamps;
 	skb_frag_t	frags[MAX_SKB_FRAGS];
 #ifdef CONFIG_HAS_DMA
 	dma_addr_t	dma_maps[MAX_SKB_FRAGS + 1];
@@ -465,6 +518,16 @@ static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
 /* Internal */
 #define skb_shinfo(SKB)	((struct skb_shared_info *)(skb_end_pointer(SKB)))
 
+static inline struct skb_shared_hwtstamps *skb_hwtstamps(struct sk_buff *skb)
+{
+	return &skb_shinfo(skb)->hwtstamps;
+}
+
+static inline union skb_shared_tx *skb_tx(struct sk_buff *skb)
+{
+	return &skb_shinfo(skb)->tx_flags;
+}
+
 /**
  *	skb_queue_empty - check if a queue is empty
  *	@list: queue head
@@ -1730,6 +1793,11 @@ static inline void skb_copy_to_linear_data_offset(struct sk_buff *skb,
 
 extern void skb_init(void);
 
+static inline ktime_t skb_get_ktime(const struct sk_buff *skb)
+{
+	return skb->tstamp;
+}
+
 /**
  *	skb_get_timestamp - get timestamp from a skb
  *	@skb: skb to get stamp from
@@ -1739,11 +1807,18 @@ extern void skb_init(void);
  *	This function converts the offset back to a struct timeval and stores
  *	it in stamp.
  */
-static inline void skb_get_timestamp(const struct sk_buff *skb, struct timeval *stamp)
+static inline void skb_get_timestamp(const struct sk_buff *skb,
+				     struct timeval *stamp)
 {
 	*stamp = ktime_to_timeval(skb->tstamp);
 }
 
+static inline void skb_get_timestampns(const struct sk_buff *skb,
+				       struct timespec *stamp)
+{
+	*stamp = ktime_to_timespec(skb->tstamp);
+}
+
 static inline void __net_timestamp(struct sk_buff *skb)
 {
 	skb->tstamp = ktime_get_real();
@@ -1759,6 +1834,20 @@ static inline ktime_t net_invalid_timestamp(void)
 	return ktime_set(0, 0);
 }
 
+/**
+ * skb_tstamp_tx - queue clone of skb with send time stamps
+ * @orig_skb:	the original outgoing packet
+ * @hwtstamps:	hardware time stamps, may be NULL if not available
+ *
+ * If the skb has a socket associated, then this function clones the
+ * skb (thus sharing the actual data and optional structures), stores
+ * the optional hardware time stamping information (if non NULL) or
+ * generates a software time stamp (otherwise), then queues the clone
+ * to the error queue of the socket.  Errors are silently ignored.
+ */
+extern void skb_tstamp_tx(struct sk_buff *orig_skb,
+			struct skb_shared_hwtstamps *hwtstamps);
+
 extern __sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len);
 extern __sum16 __skb_checksum_complete(struct sk_buff *skb);
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 1e27a67df242..d20c28e839d3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1672,10 +1672,21 @@ static int dev_gso_segment(struct sk_buff *skb)
 	return 0;
 }
 
+static void tstamp_tx(struct sk_buff *skb)
+{
+	union skb_shared_tx *shtx =
+		skb_tx(skb);
+	if (unlikely(shtx->software &&
+			!shtx->in_progress)) {
+		skb_tstamp_tx(skb, NULL);
+	}
+}
+
 int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 			struct netdev_queue *txq)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
+	int rc;
 
 	prefetch(&dev->netdev_ops->ndo_start_xmit);
 	if (likely(!skb->next)) {
@@ -1689,13 +1700,29 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 				goto gso;
 		}
 
-		return ops->ndo_start_xmit(skb, dev);
+		rc = ops->ndo_start_xmit(skb, dev);
+		/*
+		 * TODO: if skb_orphan() was called by
+		 * dev->hard_start_xmit() (for example, the unmodified
+		 * igb driver does that; bnx2 doesn't), then
+		 * skb_tx_software_timestamp() will be unable to send
+		 * back the time stamp.
+		 *
+		 * How can this be prevented? Always create another
+		 * reference to the socket before calling
+		 * dev->hard_start_xmit()? Prevent that skb_orphan()
+		 * does anything in dev->hard_start_xmit() by clearing
+		 * the skb destructor before the call and restoring it
+		 * afterwards, then doing the skb_orphan() ourselves?
+		 */
+		if (likely(!rc))
+			tstamp_tx(skb);
+		return rc;
 	}
 
 gso:
 	do {
 		struct sk_buff *nskb = skb->next;
-		int rc;
 
 		skb->next = nskb->next;
 		nskb->next = NULL;
@@ -1705,6 +1732,7 @@ gso:
 			skb->next = nskb;
 			return rc;
 		}
+		tstamp_tx(skb);
 		if (unlikely(netif_tx_queue_stopped(txq) && skb->next))
 			return NETDEV_TX_BUSY;
 	} while (skb->next);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ab7d2e9f02fa..e5a8351ff12d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -55,6 +55,7 @@
 #include <linux/rtnetlink.h>
 #include <linux/init.h>
 #include <linux/scatterlist.h>
+#include <linux/errqueue.h>
 
 #include <net/protocol.h>
 #include <net/dst.h>
@@ -215,7 +216,9 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 	shinfo->gso_segs = 0;
 	shinfo->gso_type = 0;
 	shinfo->ip6_frag_id = 0;
+	shinfo->tx_flags.flags = 0;
 	shinfo->frag_list = NULL;
+	memset(&shinfo->hwtstamps, 0, sizeof(shinfo->hwtstamps));
 
 	if (fclone) {
 		struct sk_buff *child = skb + 1;
@@ -2945,6 +2948,44 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
 }
 EXPORT_SYMBOL_GPL(skb_cow_data);
 
+void skb_tstamp_tx(struct sk_buff *orig_skb,
+		struct skb_shared_hwtstamps *hwtstamps)
+{
+	struct sock *sk = orig_skb->sk;
+	struct sock_exterr_skb *serr;
+	struct sk_buff *skb;
+	int err;
+
+	if (!sk)
+		return;
+
+	skb = skb_clone(orig_skb, GFP_ATOMIC);
+	if (!skb)
+		return;
+
+	if (hwtstamps) {
+		*skb_hwtstamps(skb) =
+			*hwtstamps;
+	} else {
+		/*
+		 * no hardware time stamps available,
+		 * so keep the skb_shared_tx and only
+		 * store software time stamp
+		 */
+		skb->tstamp = ktime_get_real();
+	}
+
+	serr = SKB_EXT_ERR(skb);
+	memset(serr, 0, sizeof(*serr));
+	serr->ee.ee_errno = ENOMSG;
+	serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
+	err = sock_queue_err_skb(sk, skb);
+	if (err)
+		kfree_skb(skb);
+}
+EXPORT_SYMBOL_GPL(skb_tstamp_tx);
+
+
 /**
  * skb_partial_csum_set - set up and verify partial csum values for packet
  * @skb: the skb to set
-- 
cgit v1.2.3


From 20d4947353be60e909e6b1a79d241457edd6833f Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:38 +0000
Subject: net: socket infrastructure for SO_TIMESTAMPING

The overlap with the old SO_TIMESTAMP[NS] options is handled so
that time stamping in software (net_enable_timestamp()) is
enabled when SO_TIMESTAMP[NS] and/or SO_TIMESTAMPING_RX_SOFTWARE
is set.  It's disabled if all of these are off.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sock.h | 44 ++++++++++++++++++++++++++--
 net/compat.c       | 19 +++++++-----
 net/core/sock.c    | 81 ++++++++++++++++++++++++++++++++++++++++++++--------
 net/socket.c       | 84 +++++++++++++++++++++++++++++++++++++++++-------------
 4 files changed, 186 insertions(+), 42 deletions(-)

(limited to 'include')

diff --git a/include/net/sock.h b/include/net/sock.h
index ded6854e3e4a..cc9d5bcb06f7 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -158,7 +158,7 @@ struct sock_common {
   *	@sk_allocation: allocation mode
   *	@sk_sndbuf: size of send buffer in bytes
   *	@sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE,
-  *		   %SO_OOBINLINE settings
+  *		   %SO_OOBINLINE settings, %SO_TIMESTAMPING settings
   *	@sk_no_check: %SO_NO_CHECK setting, wether or not checkup packets
   *	@sk_route_caps: route capabilities (e.g. %NETIF_F_TSO)
   *	@sk_gso_type: GSO type (e.g. %SKB_GSO_TCPV4)
@@ -488,6 +488,13 @@ enum sock_flags {
 	SOCK_RCVTSTAMPNS, /* %SO_TIMESTAMPNS setting */
 	SOCK_LOCALROUTE, /* route locally only, %SO_DONTROUTE setting */
 	SOCK_QUEUE_SHRUNK, /* write queue has been shrunk recently */
+	SOCK_TIMESTAMPING_TX_HARDWARE,  /* %SOF_TIMESTAMPING_TX_HARDWARE */
+	SOCK_TIMESTAMPING_TX_SOFTWARE,  /* %SOF_TIMESTAMPING_TX_SOFTWARE */
+	SOCK_TIMESTAMPING_RX_HARDWARE,  /* %SOF_TIMESTAMPING_RX_HARDWARE */
+	SOCK_TIMESTAMPING_RX_SOFTWARE,  /* %SOF_TIMESTAMPING_RX_SOFTWARE */
+	SOCK_TIMESTAMPING_SOFTWARE,     /* %SOF_TIMESTAMPING_SOFTWARE */
+	SOCK_TIMESTAMPING_RAW_HARDWARE, /* %SOF_TIMESTAMPING_RAW_HARDWARE */
+	SOCK_TIMESTAMPING_SYS_HARDWARE, /* %SOF_TIMESTAMPING_SYS_HARDWARE */
 };
 
 static inline void sock_copy_flags(struct sock *nsk, struct sock *osk)
@@ -1346,13 +1353,44 @@ static __inline__ void
 sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
 {
 	ktime_t kt = skb->tstamp;
+	struct skb_shared_hwtstamps *hwtstamps = skb_hwtstamps(skb);
 
-	if (sock_flag(sk, SOCK_RCVTSTAMP))
+	/*
+	 * generate control messages if
+	 * - receive time stamping in software requested (SOCK_RCVTSTAMP
+	 *   or SOCK_TIMESTAMPING_RX_SOFTWARE)
+	 * - software time stamp available and wanted
+	 *   (SOCK_TIMESTAMPING_SOFTWARE)
+	 * - hardware time stamps available and wanted
+	 *   (SOCK_TIMESTAMPING_SYS_HARDWARE or
+	 *   SOCK_TIMESTAMPING_RAW_HARDWARE)
+	 */
+	if (sock_flag(sk, SOCK_RCVTSTAMP) ||
+	    sock_flag(sk, SOCK_TIMESTAMPING_RX_SOFTWARE) ||
+	    (kt.tv64 && sock_flag(sk, SOCK_TIMESTAMPING_SOFTWARE)) ||
+	    (hwtstamps->hwtstamp.tv64 &&
+	     sock_flag(sk, SOCK_TIMESTAMPING_RAW_HARDWARE)) ||
+	    (hwtstamps->syststamp.tv64 &&
+	     sock_flag(sk, SOCK_TIMESTAMPING_SYS_HARDWARE)))
 		__sock_recv_timestamp(msg, sk, skb);
 	else
 		sk->sk_stamp = kt;
 }
 
+/**
+ * sock_tx_timestamp - checks whether the outgoing packet is to be time stamped
+ * @msg:	outgoing packet
+ * @sk:		socket sending this packet
+ * @shtx:	filled with instructions for time stamping
+ *
+ * Currently only depends on SOCK_TIMESTAMPING* flags. Returns error code if
+ * parameters are invalid.
+ */
+extern int sock_tx_timestamp(struct msghdr *msg,
+			     struct sock *sk,
+			     union skb_shared_tx *shtx);
+
+
 /**
  * sk_eat_skb - Release a skb if it is no longer needed
  * @sk: socket to eat this skb from
@@ -1421,7 +1459,7 @@ static inline struct sock *skb_steal_sock(struct sk_buff *skb)
 	return NULL;
 }
 
-extern void sock_enable_timestamp(struct sock *sk);
+extern void sock_enable_timestamp(struct sock *sk, int flag);
 extern int sock_get_timestamp(struct sock *, struct timeval __user *);
 extern int sock_get_timestampns(struct sock *, struct timespec __user *);
 
diff --git a/net/compat.c b/net/compat.c
index a3a2ba0fac08..8d739053afe4 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -216,7 +216,7 @@ Efault:
 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
 {
 	struct compat_timeval ctv;
-	struct compat_timespec cts;
+	struct compat_timespec cts[3];
 	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
 	struct compat_cmsghdr cmhdr;
 	int cmlen;
@@ -233,12 +233,17 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
 		data = &ctv;
 		len = sizeof(ctv);
 	}
-	if (level == SOL_SOCKET && type == SCM_TIMESTAMPNS) {
+	if (level == SOL_SOCKET &&
+	    (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
+		int count = type == SCM_TIMESTAMPNS ? 1 : 3;
+		int i;
 		struct timespec *ts = (struct timespec *)data;
-		cts.tv_sec = ts->tv_sec;
-		cts.tv_nsec = ts->tv_nsec;
+		for (i = 0; i < count; i++) {
+			cts[i].tv_sec = ts[i].tv_sec;
+			cts[i].tv_nsec = ts[i].tv_nsec;
+		}
 		data = &cts;
-		len = sizeof(cts);
+		len = sizeof(cts[0]) * count;
 	}
 
 	cmlen = CMSG_COMPAT_LEN(len);
@@ -455,7 +460,7 @@ int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
 	struct timeval tv;
 
 	if (!sock_flag(sk, SOCK_TIMESTAMP))
-		sock_enable_timestamp(sk);
+		sock_enable_timestamp(sk, SOCK_TIMESTAMP);
 	tv = ktime_to_timeval(sk->sk_stamp);
 	if (tv.tv_sec == -1)
 		return err;
@@ -479,7 +484,7 @@ int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *usersta
 	struct timespec ts;
 
 	if (!sock_flag(sk, SOCK_TIMESTAMP))
-		sock_enable_timestamp(sk);
+		sock_enable_timestamp(sk, SOCK_TIMESTAMP);
 	ts = ktime_to_timespec(sk->sk_stamp);
 	if (ts.tv_sec == -1)
 		return err;
diff --git a/net/core/sock.c b/net/core/sock.c
index 4c64be4f8765..40887e76652c 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -120,6 +120,7 @@
 #include <net/net_namespace.h>
 #include <net/request_sock.h>
 #include <net/sock.h>
+#include <linux/net_tstamp.h>
 #include <net/xfrm.h>
 #include <linux/ipsec.h>
 
@@ -255,11 +256,14 @@ static void sock_warn_obsolete_bsdism(const char *name)
 	}
 }
 
-static void sock_disable_timestamp(struct sock *sk)
+static void sock_disable_timestamp(struct sock *sk, int flag)
 {
-	if (sock_flag(sk, SOCK_TIMESTAMP)) {
-		sock_reset_flag(sk, SOCK_TIMESTAMP);
-		net_disable_timestamp();
+	if (sock_flag(sk, flag)) {
+		sock_reset_flag(sk, flag);
+		if (!sock_flag(sk, SOCK_TIMESTAMP) &&
+		    !sock_flag(sk, SOCK_TIMESTAMPING_RX_SOFTWARE)) {
+			net_disable_timestamp();
+		}
 	}
 }
 
@@ -614,13 +618,38 @@ set_rcvbuf:
 			else
 				sock_set_flag(sk, SOCK_RCVTSTAMPNS);
 			sock_set_flag(sk, SOCK_RCVTSTAMP);
-			sock_enable_timestamp(sk);
+			sock_enable_timestamp(sk, SOCK_TIMESTAMP);
 		} else {
 			sock_reset_flag(sk, SOCK_RCVTSTAMP);
 			sock_reset_flag(sk, SOCK_RCVTSTAMPNS);
 		}
 		break;
 
+	case SO_TIMESTAMPING:
+		if (val & ~SOF_TIMESTAMPING_MASK) {
+			ret = EINVAL;
+			break;
+		}
+		sock_valbool_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE,
+				  val & SOF_TIMESTAMPING_TX_HARDWARE);
+		sock_valbool_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE,
+				  val & SOF_TIMESTAMPING_TX_SOFTWARE);
+		sock_valbool_flag(sk, SOCK_TIMESTAMPING_RX_HARDWARE,
+				  val & SOF_TIMESTAMPING_RX_HARDWARE);
+		if (val & SOF_TIMESTAMPING_RX_SOFTWARE)
+			sock_enable_timestamp(sk,
+					      SOCK_TIMESTAMPING_RX_SOFTWARE);
+		else
+			sock_disable_timestamp(sk,
+					       SOCK_TIMESTAMPING_RX_SOFTWARE);
+		sock_valbool_flag(sk, SOCK_TIMESTAMPING_SOFTWARE,
+				  val & SOF_TIMESTAMPING_SOFTWARE);
+		sock_valbool_flag(sk, SOCK_TIMESTAMPING_SYS_HARDWARE,
+				  val & SOF_TIMESTAMPING_SYS_HARDWARE);
+		sock_valbool_flag(sk, SOCK_TIMESTAMPING_RAW_HARDWARE,
+				  val & SOF_TIMESTAMPING_RAW_HARDWARE);
+		break;
+
 	case SO_RCVLOWAT:
 		if (val < 0)
 			val = INT_MAX;
@@ -768,6 +797,24 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		v.val = sock_flag(sk, SOCK_RCVTSTAMPNS);
 		break;
 
+	case SO_TIMESTAMPING:
+		v.val = 0;
+		if (sock_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE))
+			v.val |= SOF_TIMESTAMPING_TX_HARDWARE;
+		if (sock_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE))
+			v.val |= SOF_TIMESTAMPING_TX_SOFTWARE;
+		if (sock_flag(sk, SOCK_TIMESTAMPING_RX_HARDWARE))
+			v.val |= SOF_TIMESTAMPING_RX_HARDWARE;
+		if (sock_flag(sk, SOCK_TIMESTAMPING_RX_SOFTWARE))
+			v.val |= SOF_TIMESTAMPING_RX_SOFTWARE;
+		if (sock_flag(sk, SOCK_TIMESTAMPING_SOFTWARE))
+			v.val |= SOF_TIMESTAMPING_SOFTWARE;
+		if (sock_flag(sk, SOCK_TIMESTAMPING_SYS_HARDWARE))
+			v.val |= SOF_TIMESTAMPING_SYS_HARDWARE;
+		if (sock_flag(sk, SOCK_TIMESTAMPING_RAW_HARDWARE))
+			v.val |= SOF_TIMESTAMPING_RAW_HARDWARE;
+		break;
+
 	case SO_RCVTIMEO:
 		lv=sizeof(struct timeval);
 		if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) {
@@ -969,7 +1016,8 @@ void sk_free(struct sock *sk)
 		rcu_assign_pointer(sk->sk_filter, NULL);
 	}
 
-	sock_disable_timestamp(sk);
+	sock_disable_timestamp(sk, SOCK_TIMESTAMP);
+	sock_disable_timestamp(sk, SOCK_TIMESTAMPING_RX_SOFTWARE);
 
 	if (atomic_read(&sk->sk_omem_alloc))
 		printk(KERN_DEBUG "%s: optmem leakage (%d bytes) detected.\n",
@@ -1787,7 +1835,7 @@ int sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
 {
 	struct timeval tv;
 	if (!sock_flag(sk, SOCK_TIMESTAMP))
-		sock_enable_timestamp(sk);
+		sock_enable_timestamp(sk, SOCK_TIMESTAMP);
 	tv = ktime_to_timeval(sk->sk_stamp);
 	if (tv.tv_sec == -1)
 		return -ENOENT;
@@ -1803,7 +1851,7 @@ int sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
 {
 	struct timespec ts;
 	if (!sock_flag(sk, SOCK_TIMESTAMP))
-		sock_enable_timestamp(sk);
+		sock_enable_timestamp(sk, SOCK_TIMESTAMP);
 	ts = ktime_to_timespec(sk->sk_stamp);
 	if (ts.tv_sec == -1)
 		return -ENOENT;
@@ -1815,11 +1863,20 @@ int sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
 }
 EXPORT_SYMBOL(sock_get_timestampns);
 
-void sock_enable_timestamp(struct sock *sk)
+void sock_enable_timestamp(struct sock *sk, int flag)
 {
-	if (!sock_flag(sk, SOCK_TIMESTAMP)) {
-		sock_set_flag(sk, SOCK_TIMESTAMP);
-		net_enable_timestamp();
+	if (!sock_flag(sk, flag)) {
+		sock_set_flag(sk, flag);
+		/*
+		 * we just set one of the two flags which require net
+		 * time stamping, but time stamping might have been on
+		 * already because of the other one
+		 */
+		if (!sock_flag(sk,
+				flag == SOCK_TIMESTAMP ?
+				SOCK_TIMESTAMPING_RX_SOFTWARE :
+				SOCK_TIMESTAMP))
+			net_enable_timestamp();
 	}
 }
 
diff --git a/net/socket.c b/net/socket.c
index 35dd7371752a..47a3dc074eb0 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -545,6 +545,18 @@ void sock_release(struct socket *sock)
 	sock->file = NULL;
 }
 
+int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
+		      union skb_shared_tx *shtx)
+{
+	shtx->flags = 0;
+	if (sock_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE))
+		shtx->hardware = 1;
+	if (sock_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE))
+		shtx->software = 1;
+	return 0;
+}
+EXPORT_SYMBOL(sock_tx_timestamp);
+
 static inline int __sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 				 struct msghdr *msg, size_t size)
 {
@@ -595,33 +607,65 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
 	return result;
 }
 
+static int ktime2ts(ktime_t kt, struct timespec *ts)
+{
+	if (kt.tv64) {
+		*ts = ktime_to_timespec(kt);
+		return 1;
+	} else {
+		return 0;
+	}
+}
+
 /*
  * called from sock_recv_timestamp() if sock_flag(sk, SOCK_RCVTSTAMP)
  */
 void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
 	struct sk_buff *skb)
 {
-	ktime_t kt = skb->tstamp;
-
-	if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) {
-		struct timeval tv;
-		/* Race occurred between timestamp enabling and packet
-		   receiving.  Fill in the current time for now. */
-		if (kt.tv64 == 0)
-			kt = ktime_get_real();
-		skb->tstamp = kt;
-		tv = ktime_to_timeval(kt);
-		put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP, sizeof(tv), &tv);
-	} else {
-		struct timespec ts;
-		/* Race occurred between timestamp enabling and packet
-		   receiving.  Fill in the current time for now. */
-		if (kt.tv64 == 0)
-			kt = ktime_get_real();
-		skb->tstamp = kt;
-		ts = ktime_to_timespec(kt);
-		put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, sizeof(ts), &ts);
+	int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP);
+	struct timespec ts[3];
+	int empty = 1;
+	struct skb_shared_hwtstamps *shhwtstamps =
+		skb_hwtstamps(skb);
+
+	/* Race occurred between timestamp enabling and packet
+	   receiving.  Fill in the current time for now. */
+	if (need_software_tstamp && skb->tstamp.tv64 == 0)
+		__net_timestamp(skb);
+
+	if (need_software_tstamp) {
+		if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) {
+			struct timeval tv;
+			skb_get_timestamp(skb, &tv);
+			put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP,
+				 sizeof(tv), &tv);
+		} else {
+			struct timespec ts;
+			skb_get_timestampns(skb, &ts);
+			put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS,
+				 sizeof(ts), &ts);
+		}
+	}
+
+
+	memset(ts, 0, sizeof(ts));
+	if (skb->tstamp.tv64 &&
+	    sock_flag(sk, SOCK_TIMESTAMPING_SOFTWARE)) {
+		skb_get_timestampns(skb, ts + 0);
+		empty = 0;
+	}
+	if (shhwtstamps) {
+		if (sock_flag(sk, SOCK_TIMESTAMPING_SYS_HARDWARE) &&
+		    ktime2ts(shhwtstamps->syststamp, ts + 1))
+			empty = 0;
+		if (sock_flag(sk, SOCK_TIMESTAMPING_RAW_HARDWARE) &&
+		    ktime2ts(shhwtstamps->hwtstamp, ts + 2))
+			empty = 0;
 	}
+	if (!empty)
+		put_cmsg(msg, SOL_SOCKET,
+			 SCM_TIMESTAMPING, sizeof(ts), &ts);
 }
 
 EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
-- 
cgit v1.2.3


From 51f31cabe3ce5345b51e4a4f82138b38c4d5dc91 Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:39 +0000
Subject: ip: support for TX timestamps on UDP and RAW sockets

Instructions for time stamping outgoing packets are take from the
socket layer and later copied into the new skb.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/timestamping.txt | 2 ++
 include/net/ip.h                          | 1 +
 net/can/raw.c                             | 3 +++
 net/ipv4/icmp.c                           | 2 ++
 net/ipv4/ip_output.c                      | 6 ++++++
 net/ipv4/raw.c                            | 1 +
 net/ipv4/udp.c                            | 4 ++++
 7 files changed, 19 insertions(+)

(limited to 'include')

diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt
index a681a65b5bc7..0e58b4539176 100644
--- a/Documentation/networking/timestamping.txt
+++ b/Documentation/networking/timestamping.txt
@@ -56,6 +56,8 @@ and including the link layer, the scm_timestamping control message and
 a sock_extended_err control message with ee_errno==ENOMSG and
 ee_origin==SO_EE_ORIGIN_TIMESTAMPING. A socket with such a pending
 bounced packet is ready for reading as far as select() is concerned.
+If the outgoing packet has to be fragmented, then only the first
+fragment is time stamped and returned to the sending socket.
 
 All three values correspond to the same event in time, but were
 generated in different ways. Each of these values may be empty (= all
diff --git a/include/net/ip.h b/include/net/ip.h
index 10868139e656..4ac7577f98d0 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -55,6 +55,7 @@ struct ipcm_cookie
 	__be32			addr;
 	int			oif;
 	struct ip_options	*opt;
+	union skb_shared_tx	shtx;
 };
 
 #define IPCB(skb) ((struct inet_skb_parm*)((skb)->cb))
diff --git a/net/can/raw.c b/net/can/raw.c
index 0703cba4bf9f..6aa154e806ae 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -646,6 +646,9 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
 		goto put_dev;
 
 	err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
+	if (err < 0)
+		goto free_skb;
+	err = sock_tx_timestamp(msg, sk, skb_tx(skb));
 	if (err < 0)
 		goto free_skb;
 	skb->dev = dev;
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 705b33b184a3..382800a62b31 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -375,6 +375,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
 	inet->tos = ip_hdr(skb)->tos;
 	daddr = ipc.addr = rt->rt_src;
 	ipc.opt = NULL;
+	ipc.shtx.flags = 0;
 	if (icmp_param->replyopts.optlen) {
 		ipc.opt = &icmp_param->replyopts;
 		if (ipc.opt->srr)
@@ -532,6 +533,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	inet_sk(sk)->tos = tos;
 	ipc.addr = iph->saddr;
 	ipc.opt = &icmp_param.replyopts;
+	ipc.shtx.flags = 0;
 
 	{
 		struct flowi fl = {
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 8ebe86dd72af..3e7e910c7c0f 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -935,6 +935,10 @@ alloc_new_skb:
 							   sk->sk_allocation);
 				if (unlikely(skb == NULL))
 					err = -ENOBUFS;
+				else
+					/* only the initial fragment is
+					   time stamped */
+					ipc->shtx.flags = 0;
 			}
 			if (skb == NULL)
 				goto error;
@@ -945,6 +949,7 @@ alloc_new_skb:
 			skb->ip_summed = csummode;
 			skb->csum = 0;
 			skb_reserve(skb, hh_len);
+			*skb_tx(skb) = ipc->shtx;
 
 			/*
 			 *	Find where to start putting bytes.
@@ -1364,6 +1369,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
 
 	daddr = ipc.addr = rt->rt_src;
 	ipc.opt = NULL;
+	ipc.shtx.flags = 0;
 
 	if (replyopts.opt.optlen) {
 		ipc.opt = &replyopts.opt;
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index dff8bc4e0fac..f774651f0a47 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -493,6 +493,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	ipc.addr = inet->saddr;
 	ipc.opt = NULL;
+	ipc.shtx.flags = 0;
 	ipc.oif = sk->sk_bound_dev_if;
 
 	if (msg->msg_controllen) {
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index c47c989cb1fb..4bd178a111d5 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -596,6 +596,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		return -EOPNOTSUPP;
 
 	ipc.opt = NULL;
+	ipc.shtx.flags = 0;
 
 	if (up->pending) {
 		/*
@@ -643,6 +644,9 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	ipc.addr = inet->saddr;
 
 	ipc.oif = sk->sk_bound_dev_if;
+	err = sock_tx_timestamp(msg, sk, &ipc.shtx);
+	if (err)
+		return err;
 	if (msg->msg_controllen) {
 		err = ip_cmsg_send(sock_net(sk), msg, &ipc);
 		if (err)
-- 
cgit v1.2.3


From 06e868066e3b5828383eb40ff4d1c0029100b0b5 Mon Sep 17 00:00:00 2001
From: Lucas Nussbaum <lucas.nussbaum@ens-lyon.fr>
Date: Fri, 13 Feb 2009 08:33:41 +0000
Subject: sctp: Allow to disable SCTP checksums via module parameter

This is a new version of my patch, now using a module parameter instead
of a sysctl, so that the option is harder to find. Please note that,
once the module is loaded, it is still possible to change the value of
the parameter in /sys/module/sctp/parameters/, which is useful if you
want to do performance comparisons without rebooting.

Computation of SCTP checksums significantly affects the performance of
SCTP. For example, using two dual-Opteron 246 connected using a Gbe
network, it was not possible to achieve more than ~730 Mbps, compared to
941 Mbps after disabling SCTP checksums.
Unfortunately, SCTP checksum offloading in NICs is not commonly
available (yet).

By default, checksums are still enabled, of course.

Signed-off-by: Lucas Nussbaum <lucas.nussbaum@ens-lyon.fr>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/structs.h | 5 +++++
 net/sctp/input.c           | 3 ++-
 net/sctp/output.c          | 2 +-
 net/sctp/protocol.c        | 2 ++
 4 files changed, 10 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 9661d7b765f0..9f70d54fcefc 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -218,6 +218,10 @@ extern struct sctp_globals {
 
 	/* Flag to idicate if SCTP-AUTH is enabled */
 	int auth_enable;
+
+	/* Flag to indicate whether computing and verifying checksum
+	 * is disabled. */
+        int checksum_disable;
 } sctp_globals;
 
 #define sctp_rto_initial		(sctp_globals.rto_initial)
@@ -252,6 +256,7 @@ extern struct sctp_globals {
 #define sctp_addip_noauth		(sctp_globals.addip_noauth_enable)
 #define sctp_prsctp_enable		(sctp_globals.prsctp_enable)
 #define sctp_auth_enable		(sctp_globals.auth_enable)
+#define sctp_checksum_disable		(sctp_globals.checksum_disable)
 
 /* SCTP Socket type: UDP or TCP style. */
 typedef enum {
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 2e4a8646dbc3..693fd0804810 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -142,7 +142,8 @@ int sctp_rcv(struct sk_buff *skb)
 	__skb_pull(skb, skb_transport_offset(skb));
 	if (skb->len < sizeof(struct sctphdr))
 		goto discard_it;
-	if (!skb_csum_unnecessary(skb) && sctp_rcv_checksum(skb) < 0)
+	if (!sctp_checksum_disable && !skb_csum_unnecessary(skb) &&
+		  sctp_rcv_checksum(skb) < 0)
 		goto discard_it;
 
 	skb_pull(skb, sizeof(struct sctphdr));
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 47bfba6c03ec..2d65b7a7330b 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -531,7 +531,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	 * Note: Adler-32 is no longer applicable, as has been replaced
 	 * by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
 	 */
-	if (!(dst->dev->features & NETIF_F_NO_CSUM)) {
+	if (!sctp_checksum_disable && !(dst->dev->features & NETIF_F_NO_CSUM)) {
 		crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
 		crc32 = sctp_end_cksum(crc32);
 	} else
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index b78e3be69013..cc0b592698f9 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1411,4 +1411,6 @@ MODULE_ALIAS("net-pf-" __stringify(PF_INET) "-proto-132");
 MODULE_ALIAS("net-pf-" __stringify(PF_INET6) "-proto-132");
 MODULE_AUTHOR("Linux Kernel SCTP developers <lksctp-developers@lists.sourceforge.net>");
 MODULE_DESCRIPTION("Support for the SCTP protocol (RFC2960)");
+module_param_named(no_checksums, sctp_checksum_disable, bool, 0644);
+MODULE_PARM_DESC(no_checksums, "Disable checksums computing and verification");
 MODULE_LICENSE("GPL");
-- 
cgit v1.2.3


From 4458f04c02a46c679a90ef71f866a415c192deb4 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Fri, 13 Feb 2009 08:33:42 +0000
Subject: sctp: Clean up sctp checksumming code

The sctp crc32c checksum is always generated in little endian.
So, we clean up the code to treat it as little endian and remove
all the __force casts.

Suggested by Herbert Xu.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/sctp.h        |  2 +-
 include/net/sctp/checksum.h | 14 +++++++-------
 net/sctp/input.c            | 11 ++++++-----
 net/sctp/output.c           | 14 ++++++--------
 4 files changed, 20 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index bd50b371ffaa..c2731bfe04d8 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -60,7 +60,7 @@ typedef struct sctphdr {
 	__be16 source;
 	__be16 dest;
 	__be32 vtag;
-	__be32 checksum;
+	__le32 checksum;
 } __attribute__((packed)) sctp_sctphdr_t;
 
 #ifdef __KERNEL__
diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
index 2fec3c366e81..befc8d2a1b9f 100644
--- a/include/net/sctp/checksum.h
+++ b/include/net/sctp/checksum.h
@@ -46,14 +46,14 @@
 #include <net/sctp/sctp.h>
 #include <linux/crc32c.h>
 
-static inline __be32 sctp_crc32c(__be32 crc, u8 *buffer, u16 length)
+static inline __u32 sctp_crc32c(__u32 crc, u8 *buffer, u16 length)
 {
-	return (__force __be32)crc32c((__force u32)crc, buffer, length);
+	return crc32c(crc, buffer, length);
 }
 
-static inline __be32 sctp_start_cksum(__u8 *buffer, __u16 length)
+static inline __u32 sctp_start_cksum(__u8 *buffer, __u16 length)
 {
-	__be32 crc = ~cpu_to_be32(0);
+	__u32 crc = ~(__u32)0;
 	__u8  zero[sizeof(__u32)] = {0};
 
 	/* Optimize this routine to be SCTP specific, knowing how
@@ -72,12 +72,12 @@ static inline __be32 sctp_start_cksum(__u8 *buffer, __u16 length)
 	return crc;
 }
 
-static inline __be32 sctp_update_cksum(__u8 *buffer, __u16 length, __be32 crc32)
+static inline __u32 sctp_update_cksum(__u8 *buffer, __u16 length, __u32 crc32)
 {
 	return sctp_crc32c(crc32, buffer, length);
 }
 
-static inline __be32 sctp_end_cksum(__be32 crc32)
+static inline __le32 sctp_end_cksum(__be32 crc32)
 {
-	return (__force __be32)~cpu_to_le32((__force u32)crc32);
+	return cpu_to_le32(~crc32);
 }
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 693fd0804810..d2e98803ffe3 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -83,14 +83,15 @@ static inline int sctp_rcv_checksum(struct sk_buff *skb)
 {
 	struct sk_buff *list = skb_shinfo(skb)->frag_list;
 	struct sctphdr *sh = sctp_hdr(skb);
-	__be32 cmp = sh->checksum;
-	__be32 val = sctp_start_cksum((__u8 *)sh, skb_headlen(skb));
+	__le32 cmp = sh->checksum;
+	__le32 val;
+	__u32 tmp = sctp_start_cksum((__u8 *)sh, skb_headlen(skb));
 
 	for (; list; list = list->next)
-		val = sctp_update_cksum((__u8 *)list->data, skb_headlen(list),
-					val);
+		tmp = sctp_update_cksum((__u8 *)list->data, skb_headlen(list),
+					tmp);
 
-	val = sctp_end_cksum(val);
+	val = sctp_end_cksum(tmp);
 
 	if (val != cmp) {
 		/* CRC failure, dump it. */
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 2d65b7a7330b..07d58903a746 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -367,7 +367,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	struct sctp_transport *tp = packet->transport;
 	struct sctp_association *asoc = tp->asoc;
 	struct sctphdr *sh;
-	__be32 crc32 = cpu_to_be32(0);
 	struct sk_buff *nskb;
 	struct sctp_chunk *chunk, *tmp;
 	struct sock *sk;
@@ -532,16 +531,15 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	 * by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
 	 */
 	if (!sctp_checksum_disable && !(dst->dev->features & NETIF_F_NO_CSUM)) {
-		crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
-		crc32 = sctp_end_cksum(crc32);
+		__u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
+
+		/* 3) Put the resultant value into the checksum field in the
+		 *    common header, and leave the rest of the bits unchanged.
+		 */
+		sh->checksum = sctp_end_cksum(crc32);
 	} else
 		nskb->ip_summed = CHECKSUM_UNNECESSARY;
 
-	/* 3) Put the resultant value into the checksum field in the
-	 *    common header, and leave the rest of the bits unchanged.
-	 */
-	sh->checksum = crc32;
-
 	/* IP layer ECN support
 	 * From RFC 2481
 	 *  "The ECN-Capable Transport (ECT) bit would be set by the
-- 
cgit v1.2.3


From faee47cdbfe8d74a1573c2f81ea6dbb08d735be6 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Fri, 13 Feb 2009 08:33:43 +0000
Subject: sctp: Fix the RTO-doubling on idle-link heartbeats

SCTP incorrectly doubles rto ever time a Hearbeat chunk
is generated.   However RFC 4960 states:

   On an idle destination address that is allowed to heartbeat, it is
   recommended that a HEARTBEAT chunk is sent once per RTO of that
   destination address plus the protocol parameter 'HB.interval', with
   jittering of +/- 50% of the RTO value, and exponential backoff of the
   RTO if the previous HEARTBEAT is unanswered.

Essentially, of if the heartbean is unacknowledged, do we double the RTO.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/structs.h |  2 ++
 net/sctp/sm_sideeffect.c   | 17 +++++++++++++++--
 net/sctp/transport.c       |  2 ++
 3 files changed, 19 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 9f70d54fcefc..23f08fe1d50a 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -910,8 +910,10 @@ struct sctp_transport {
 	 *		should be set. Every time the RTT
 	 *		calculation completes (i.e. the DATA chunk
 	 *		is SACK'd) clear this flag.
+	 * hb_sent : a flag that signals that we have a pending heartbeat.
 	 */
 	__u8 rto_pending;
+	__u8 hb_sent;
 
 	/* Flag to track the current fast recovery state */
 	__u8 fast_recovery;
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index e1d6076b4f59..0146cfb1f182 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -461,9 +461,15 @@ static void sctp_do_8_2_transport_strike(struct sctp_association *asoc,
 	 * expires, set RTO <- RTO * 2 ("back off the timer").  The
 	 * maximum value discussed in rule C7 above (RTO.max) may be
 	 * used to provide an upper bound to this doubling operation.
+	 *
+	 * Special Case:  the first HB doesn't trigger exponential backoff.
+	 * The first unacknowleged HB triggers it.  We do this with a flag
+	 * that indicates that we have an outstanding HB.
 	 */
-	transport->last_rto = transport->rto;
-	transport->rto = min((transport->rto * 2), transport->asoc->rto_max);
+	if (transport->hb_sent) {
+		transport->last_rto = transport->rto;
+		transport->rto = min((transport->rto * 2), transport->asoc->rto_max);
+	}
 }
 
 /* Worker routine to handle INIT command failure.  */
@@ -621,6 +627,11 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
 	t->error_count = 0;
 	t->asoc->overall_error_count = 0;
 
+	/* Clear the hb_sent flag to signal that we had a good
+	 * acknowledgement.
+	 */
+	t->hb_sent = 0;
+
 	/* Mark the destination transport address as active if it is not so
 	 * marked.
 	 */
@@ -657,6 +668,8 @@ static void sctp_cmd_transport_reset(sctp_cmd_seq_t *cmds,
 
 	/* Mark one strike against a transport.  */
 	sctp_do_8_2_transport_strike(asoc, t);
+
+	t->hb_sent = 1;
 }
 
 /* Helper function to process the process SACK command.  */
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index e745c118f239..5c29b14ee9af 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -79,6 +79,7 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
 	peer->rttvar = 0;
 	peer->srtt = 0;
 	peer->rto_pending = 0;
+	peer->hb_sent = 0;
 	peer->fast_recovery = 0;
 
 	peer->last_time_heard = jiffies;
@@ -608,6 +609,7 @@ void sctp_transport_reset(struct sctp_transport *t)
 	t->flight_size = 0;
 	t->error_count = 0;
 	t->rto_pending = 0;
+	t->hb_sent = 0;
 	t->fast_recovery = 0;
 
 	/* Initialize the state information for SFR-CACC */
-- 
cgit v1.2.3


From 914e1c8b6980c516667375d3e55f0b6e674c8c58 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Fri, 13 Feb 2009 08:33:44 +0000
Subject: sctp: Inherit all socket options from parent correctly.

During peeloff/accept() sctp needs to save the parent socket state
into the new socket so that any options set on the parent are
inherited by the child socket.  This was found when the
parent/listener socket issues SO_BINDTODEVICE, but the
data was misrouted after a route cache flush.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/sctp.h |  2 ++
 net/sctp/ipv6.c         | 33 +----------------------------
 net/sctp/protocol.c     | 29 ++------------------------
 net/sctp/socket.c       | 55 ++++++++++++++++++++++++++++++++++++++++++-------
 4 files changed, 53 insertions(+), 66 deletions(-)

(limited to 'include')

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index bbb7742195b0..9e226be3be69 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -138,6 +138,8 @@ void sctp_write_space(struct sock *sk);
 unsigned int sctp_poll(struct file *file, struct socket *sock,
 		poll_table *wait);
 void sctp_sock_rfree(struct sk_buff *skb);
+void sctp_copy_sock(struct sock *newsk, struct sock *sk,
+		    struct sctp_association *asoc);
 extern struct percpu_counter sctp_sockets_allocated;
 
 /*
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 786227566696..a63de3f7f185 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -627,9 +627,7 @@ static sctp_scope_t sctp_v6_scope(union sctp_addr *addr)
 static struct sock *sctp_v6_create_accept_sk(struct sock *sk,
 					     struct sctp_association *asoc)
 {
-	struct inet_sock *inet = inet_sk(sk);
 	struct sock *newsk;
-	struct inet_sock *newinet;
 	struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
 	struct sctp6_sock *newsctp6sk;
 
@@ -639,17 +637,7 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk,
 
 	sock_init_data(NULL, newsk);
 
-	newsk->sk_type = SOCK_STREAM;
-
-	newsk->sk_prot = sk->sk_prot;
-	newsk->sk_no_check = sk->sk_no_check;
-	newsk->sk_reuse = sk->sk_reuse;
-
-	newsk->sk_destruct = inet_sock_destruct;
-	newsk->sk_family = PF_INET6;
-	newsk->sk_protocol = IPPROTO_SCTP;
-	newsk->sk_backlog_rcv = sk->sk_prot->backlog_rcv;
-	newsk->sk_shutdown = sk->sk_shutdown;
+	sctp_copy_sock(newsk, sk, asoc);
 	sock_reset_flag(sk, SOCK_ZAPPED);
 
 	newsctp6sk = (struct sctp6_sock *)newsk;
@@ -657,7 +645,6 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk,
 
 	sctp_sk(newsk)->v4mapped = sctp_sk(sk)->v4mapped;
 
-	newinet = inet_sk(newsk);
 	newnp = inet6_sk(newsk);
 
 	memcpy(newnp, np, sizeof(struct ipv6_pinfo));
@@ -665,26 +652,8 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk,
 	/* Initialize sk's sport, dport, rcv_saddr and daddr for getsockname()
 	 * and getpeername().
 	 */
-	newinet->sport = inet->sport;
-	newnp->saddr = np->saddr;
-	newnp->rcv_saddr = np->rcv_saddr;
-	newinet->dport = htons(asoc->peer.port);
 	sctp_v6_to_sk_daddr(&asoc->peer.primary_addr, newsk);
 
-	/* Init the ipv4 part of the socket since we can have sockets
-	 * using v6 API for ipv4.
-	 */
-	newinet->uc_ttl = -1;
-	newinet->mc_loop = 1;
-	newinet->mc_ttl = 1;
-	newinet->mc_index = 0;
-	newinet->mc_list = NULL;
-
-	if (ipv4_config.no_pmtu_disc)
-		newinet->pmtudisc = IP_PMTUDISC_DONT;
-	else
-		newinet->pmtudisc = IP_PMTUDISC_WANT;
-
 	sk_refcnt_debug_inc(newsk);
 
 	if (newsk->sk_prot->init(newsk)) {
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index cc0b592698f9..c1e316ee7155 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -589,46 +589,21 @@ static int sctp_v4_is_ce(const struct sk_buff *skb)
 static struct sock *sctp_v4_create_accept_sk(struct sock *sk,
 					     struct sctp_association *asoc)
 {
-	struct inet_sock *inet = inet_sk(sk);
-	struct inet_sock *newinet;
 	struct sock *newsk = sk_alloc(sock_net(sk), PF_INET, GFP_KERNEL,
 			sk->sk_prot);
+	struct inet_sock *newinet;
 
 	if (!newsk)
 		goto out;
 
 	sock_init_data(NULL, newsk);
 
-	newsk->sk_type = SOCK_STREAM;
-
-	newsk->sk_no_check = sk->sk_no_check;
-	newsk->sk_reuse = sk->sk_reuse;
-	newsk->sk_shutdown = sk->sk_shutdown;
-
-	newsk->sk_destruct = inet_sock_destruct;
-	newsk->sk_family = PF_INET;
-	newsk->sk_protocol = IPPROTO_SCTP;
-	newsk->sk_backlog_rcv = sk->sk_prot->backlog_rcv;
+	sctp_copy_sock(newsk, sk, asoc);
 	sock_reset_flag(newsk, SOCK_ZAPPED);
 
 	newinet = inet_sk(newsk);
 
-	/* Initialize sk's sport, dport, rcv_saddr and daddr for
-	 * getsockname() and getpeername()
-	 */
-	newinet->sport = inet->sport;
-	newinet->saddr = inet->saddr;
-	newinet->rcv_saddr = inet->rcv_saddr;
-	newinet->dport = htons(asoc->peer.port);
 	newinet->daddr = asoc->peer.primary_addr.v4.sin_addr.s_addr;
-	newinet->pmtudisc = inet->pmtudisc;
-	newinet->id = asoc->next_tsn ^ jiffies;
-
-	newinet->uc_ttl = -1;
-	newinet->mc_loop = 1;
-	newinet->mc_ttl = 1;
-	newinet->mc_index = 0;
-	newinet->mc_list = NULL;
 
 	sk_refcnt_debug_inc(newsk);
 
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index ff0a8f88de04..dea864f5de54 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3939,7 +3939,6 @@ SCTP_STATIC int sctp_do_peeloff(struct sctp_association *asoc,
 {
 	struct sock *sk = asoc->base.sk;
 	struct socket *sock;
-	struct inet_sock *inetsk;
 	struct sctp_af *af;
 	int err = 0;
 
@@ -3954,18 +3953,18 @@ SCTP_STATIC int sctp_do_peeloff(struct sctp_association *asoc,
 	if (err < 0)
 		return err;
 
-	/* Populate the fields of the newsk from the oldsk and migrate the
-	 * asoc to the newsk.
-	 */
-	sctp_sock_migrate(sk, sock->sk, asoc, SCTP_SOCKET_UDP_HIGH_BANDWIDTH);
+	sctp_copy_sock(sock->sk, sk, asoc);
 
 	/* Make peeled-off sockets more like 1-1 accepted sockets.
 	 * Set the daddr and initialize id to something more random
 	 */
 	af = sctp_get_af_specific(asoc->peer.primary_addr.sa.sa_family);
 	af->to_sk_daddr(&asoc->peer.primary_addr, sk);
-	inetsk = inet_sk(sock->sk);
-	inetsk->id = asoc->next_tsn ^ jiffies;
+
+	/* Populate the fields of the newsk from the oldsk and migrate the
+	 * asoc to the newsk.
+	 */
+	sctp_sock_migrate(sk, sock->sk, asoc, SCTP_SOCKET_UDP_HIGH_BANDWIDTH);
 
 	*sockp = sock;
 
@@ -6700,6 +6699,48 @@ done:
 	sctp_skb_set_owner_r(skb, sk);
 }
 
+void sctp_copy_sock(struct sock *newsk, struct sock *sk,
+		    struct sctp_association *asoc)
+{
+	struct inet_sock *inet = inet_sk(sk);
+	struct inet_sock *newinet = inet_sk(newsk);
+
+	newsk->sk_type = sk->sk_type;
+	newsk->sk_bound_dev_if = sk->sk_bound_dev_if;
+	newsk->sk_flags = sk->sk_flags;
+	newsk->sk_no_check = sk->sk_no_check;
+	newsk->sk_reuse = sk->sk_reuse;
+
+	newsk->sk_shutdown = sk->sk_shutdown;
+	newsk->sk_destruct = inet_sock_destruct;
+	newsk->sk_family = sk->sk_family;
+	newsk->sk_protocol = IPPROTO_SCTP;
+	newsk->sk_backlog_rcv = sk->sk_prot->backlog_rcv;
+	newsk->sk_sndbuf = sk->sk_sndbuf;
+	newsk->sk_rcvbuf = sk->sk_rcvbuf;
+	newsk->sk_lingertime = sk->sk_lingertime;
+	newsk->sk_rcvtimeo = sk->sk_rcvtimeo;
+	newsk->sk_sndtimeo = sk->sk_sndtimeo;
+
+	newinet = inet_sk(newsk);
+
+	/* Initialize sk's sport, dport, rcv_saddr and daddr for
+	 * getsockname() and getpeername()
+	 */
+	newinet->sport = inet->sport;
+	newinet->saddr = inet->saddr;
+	newinet->rcv_saddr = inet->rcv_saddr;
+	newinet->dport = htons(asoc->peer.port);
+	newinet->pmtudisc = inet->pmtudisc;
+	newinet->id = asoc->next_tsn ^ jiffies;
+
+	newinet->uc_ttl = inet->uc_ttl;
+	newinet->mc_loop = 1;
+	newinet->mc_ttl = 1;
+	newinet->mc_index = 0;
+	newinet->mc_list = NULL;
+}
+
 /* Populate the fields of the newsk from the oldsk and migrate the assoc
  * and its messages to the newsk.
  */
-- 
cgit v1.2.3


From c2b73d1458014a9f461b75bc1756a699a6c0781f Mon Sep 17 00:00:00 2001
From: Krzysztof Helt <krzysztof.h1@wp.pl>
Date: Mon, 16 Feb 2009 21:38:37 +0100
Subject: ALSA: cs4236: cs4232 and cs4236 driver merge to solve PnP BIOS
 detection

cs4232 and cs4236 driver merge to solve PnP BIOS detection.

Also, the patch adds recognition if the chip is cs4236b+
or earlier part. This unifies drivers for both cs4232
and cs4236+ chips. It allows to use the PnP BIOS
detection for the cs4236+ chips. Previously, only
the snd-cs4232 could be detected by the PnP BIOS.

The cs4232+ cards reports two separate PnP BIOS ids.

The patch adds search for the second id to find out
resources assigned to a control port.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/wss.h       |   1 +
 sound/isa/Kconfig         |  23 ++-----
 sound/isa/cs423x/Makefile |   2 -
 sound/isa/cs423x/cs4232.c |   2 -
 sound/isa/cs423x/cs4236.c | 153 +++++++++++++++++++++-------------------------
 sound/isa/wss/wss_lib.c   |   3 +-
 6 files changed, 78 insertions(+), 106 deletions(-)
 delete mode 100644 sound/isa/cs423x/cs4232.c

(limited to 'include')

diff --git a/include/sound/wss.h b/include/sound/wss.h
index fd01f22825cd..6d65f322f1d5 100644
--- a/include/sound/wss.h
+++ b/include/sound/wss.h
@@ -154,6 +154,7 @@ int snd_wss_create(struct snd_card *card,
 		      unsigned short hardware,
 		      unsigned short hwshare,
 		      struct snd_wss **rchip);
+int snd_wss_free(struct snd_wss *chip);
 int snd_wss_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm);
 int snd_wss_timer(struct snd_wss *chip, int device, struct snd_timer **rtimer);
 int snd_wss_mixer(struct snd_wss *chip);
diff --git a/sound/isa/Kconfig b/sound/isa/Kconfig
index 5915dc41c0ee..4e06bbd9298d 100644
--- a/sound/isa/Kconfig
+++ b/sound/isa/Kconfig
@@ -56,8 +56,8 @@ config SND_AD1848
 	  Say Y here to include support for AD1848 (Analog Devices) or
 	  CS4248 (Cirrus Logic - Crystal Semiconductors) chips.
 	  
-	  For newer chips from Cirrus Logic, use the CS4231, CS4232 or
-	  CS4236+ drivers.
+	  For newer chips from Cirrus Logic, use the CS4231 or CS4232+
+	  drivers.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-ad1848.
@@ -114,26 +114,15 @@ config SND_CS4231
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-cs4231.
 
-config SND_CS4232
-	tristate "Generic Cirrus Logic CS4232 driver"
-	select SND_OPL3_LIB
-	select SND_MPU401_UART
-	select SND_WSS_LIB
-	help
-	  Say Y here to include support for CS4232 chips from Cirrus
-	  Logic - Crystal Semiconductors.
-
-	  To compile this driver as a module, choose M here: the module
-	  will be called snd-cs4232.
-
 config SND_CS4236
-	tristate "Generic Cirrus Logic CS4236+ driver"
+	tristate "Generic Cirrus Logic CS4232/CS4236+ driver"
 	select SND_OPL3_LIB
 	select SND_MPU401_UART
 	select SND_WSS_LIB
 	help
-	  Say Y to include support for CS4235,CS4236,CS4237B,CS4238B,
-	  CS4239 chips from Cirrus Logic - Crystal Semiconductors.
+	  Say Y to include support for CS4232,CS4235,CS4236,CS4237B,
+	  CS4238B,CS4239 chips from Cirrus Logic - Crystal
+	  Semiconductors.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-cs4236.
diff --git a/sound/isa/cs423x/Makefile b/sound/isa/cs423x/Makefile
index 5870ca21ab59..732f66cc036d 100644
--- a/sound/isa/cs423x/Makefile
+++ b/sound/isa/cs423x/Makefile
@@ -5,11 +5,9 @@
 
 snd-cs4236-lib-objs := cs4236_lib.o
 snd-cs4231-objs := cs4231.o
-snd-cs4232-objs := cs4232.o
 snd-cs4236-objs := cs4236.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_CS4231) += snd-cs4231.o
-obj-$(CONFIG_SND_CS4232) += snd-cs4232.o
 obj-$(CONFIG_SND_CS4236) += snd-cs4236.o snd-cs4236-lib.o
 
diff --git a/sound/isa/cs423x/cs4232.c b/sound/isa/cs423x/cs4232.c
deleted file mode 100644
index 9fad2e6c0c2c..000000000000
--- a/sound/isa/cs423x/cs4232.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define CS4232
-#include "cs4236.c"
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index f7845986f467..a076a6ce8071 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -33,17 +33,14 @@
 
 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 MODULE_LICENSE("GPL");
-#ifdef CS4232
-MODULE_DESCRIPTION("Cirrus Logic CS4232");
+MODULE_DESCRIPTION("Cirrus Logic CS4232-9");
 MODULE_SUPPORTED_DEVICE("{{Turtle Beach,TBS-2000},"
 		"{Turtle Beach,Tropez Plus},"
 		"{SIC CrystalWave 32},"
 		"{Hewlett Packard,Omnibook 5500},"
 		"{TerraTec,Maestro 32/96},"
-		"{Philips,PCA70PS}}");
-#else
-MODULE_DESCRIPTION("Cirrus Logic CS4235-9");
-MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4235},"
+		"{Philips,PCA70PS}},"
+		"{{Crystal Semiconductors,CS4235},"
 		"{Crystal Semiconductors,CS4236},"
 		"{Crystal Semiconductors,CS4237},"
 		"{Crystal Semiconductors,CS4238},"
@@ -70,15 +67,11 @@ MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4235},"
 		"{Typhoon Soundsystem,CS4236B},"
 		"{Turtle Beach,Malibu},"
 		"{Unknown,Digital PC 5000 Onboard}}");
-#endif
 
-#ifdef CS4232
-#define IDENT "CS4232"
-#define DEV_NAME "cs4232"
-#else
-#define IDENT "CS4236+"
-#define DEV_NAME "cs4236"
-#endif
+MODULE_ALIAS("snd_cs4232");
+
+#define IDENT "CS4232+"
+#define DEV_NAME "cs4232+"
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
@@ -128,9 +121,7 @@ MODULE_PARM_DESC(dma2, "DMA2 # for " IDENT " driver.");
 #ifdef CONFIG_PNP
 static int isa_registered;
 static int pnpc_registered;
-#ifdef CS4232
 static int pnp_registered;
-#endif
 #endif /* CONFIG_PNP */
 
 struct snd_card_cs4236 {
@@ -145,11 +136,10 @@ struct snd_card_cs4236 {
 
 #ifdef CONFIG_PNP
 
-#ifdef CS4232
 /*
  * PNP BIOS
  */
-static const struct pnp_device_id snd_cs4232_pnpbiosids[] = {
+static const struct pnp_device_id snd_cs423x_pnpbiosids[] = {
 	{ .id = "CSC0100" },
 	{ .id = "CSC0000" },
 	/* Guillemot Turtlebeach something appears to be cs4232 compatible
@@ -157,10 +147,8 @@ static const struct pnp_device_id snd_cs4232_pnpbiosids[] = {
 	{ .id = "GIM0100" },
 	{ .id = "" }
 };
-MODULE_DEVICE_TABLE(pnp, snd_cs4232_pnpbiosids);
-#endif /* CS4232 */
+MODULE_DEVICE_TABLE(pnp, snd_cs423x_pnpbiosids);
 
-#ifdef CS4232
 #define CS423X_ISAPNP_DRIVER	"cs4232_isapnp"
 static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 	/* Philips PCA70PS */
@@ -179,12 +167,6 @@ static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 	{ .id = "CSCf032", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
 	/* Netfinity 3000 on-board soundcard */
 	{ .id = "CSCe825", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC010f" } } },
-	/* --- */
-	{ .id = "" }	/* end */
-};
-#else /* CS4236 */
-#define CS423X_ISAPNP_DRIVER	"cs4236_isapnp"
-static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 	/* Intel Marlin Spike Motherboard - CS4235 */
 	{ .id = "CSC0225", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
 	/* Intel Marlin Spike Motherboard (#2) - CS4235 */
@@ -266,7 +248,6 @@ static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 	/* --- */
 	{ .id = "" }	/* end */
 };
-#endif
 
 MODULE_DEVICE_TABLE(pnp_card, snd_cs423x_pnpids);
 
@@ -323,17 +304,19 @@ static int __devinit snd_cs423x_pnp_init_mpu(int dev, struct pnp_dev *pdev)
 	return 0;
 }
 
-#ifdef CS4232
-static int __devinit snd_card_cs4232_pnp(int dev, struct snd_card_cs4236 *acard,
-					 struct pnp_dev *pdev)
+static int __devinit snd_card_cs423x_pnp(int dev, struct snd_card_cs4236 *acard,
+					 struct pnp_dev *pdev,
+					 struct pnp_dev *cdev)
 {
 	acard->wss = pdev;
 	if (snd_cs423x_pnp_init_wss(dev, acard->wss) < 0)
 		return -EBUSY;
-	cport[dev] = -1;
+	if (cdev)
+		cport[dev] = pnp_port_start(cdev, 0);
+	else
+		cport[dev] = -1;
 	return 0;
 }
-#endif
 
 static int __devinit snd_card_cs423x_pnpc(int dev, struct snd_card_cs4236 *acard,
 					  struct pnp_card_link *card,
@@ -411,40 +394,39 @@ static int __devinit snd_cs423x_probe(struct snd_card *card, int dev)
 			return -EBUSY;
 		}
 
-#ifdef CS4232
 	err = snd_wss_create(card, port[dev], cport[dev],
 			     irq[dev],
 			     dma1[dev], dma2[dev],
-			     WSS_HW_DETECT, 0, &chip);
-	if (err < 0)
-		return err;
-	acard->chip = chip;
-
-	err = snd_wss_pcm(chip, 0, &pcm);
-	if (err < 0)
-		return err;
-
-	err = snd_wss_mixer(chip);
+			     WSS_HW_DETECT3, 0, &chip);
 	if (err < 0)
 		return err;
-
-#else /* CS4236 */
-	err = snd_cs4236_create(card,
-				port[dev], cport[dev],
-				irq[dev], dma1[dev], dma2[dev],
-				WSS_HW_DETECT, 0, &chip);
-	if (err < 0)
-		return err;
-	acard->chip = chip;
-
-	err = snd_cs4236_pcm(chip, 0, &pcm);
-	if (err < 0)
-		return err;
-
-	err = snd_cs4236_mixer(chip);
-	if (err < 0)
-		return err;
-#endif
+	if (chip->hardware & WSS_HW_CS4236B_MASK) {
+		snd_wss_free(chip);
+		err = snd_cs4236_create(card,
+					port[dev], cport[dev],
+					irq[dev], dma1[dev], dma2[dev],
+					WSS_HW_DETECT, 0, &chip);
+		if (err < 0)
+			return err;
+		acard->chip = chip;
+
+		err = snd_cs4236_pcm(chip, 0, &pcm);
+		if (err < 0)
+			return err;
+
+		err = snd_cs4236_mixer(chip);
+		if (err < 0)
+			return err;
+	} else {
+		acard->chip = chip;
+		err = snd_wss_pcm(chip, 0, &pcm);
+		if (err < 0)
+			return err;
+
+		err = snd_wss_mixer(chip);
+		if (err < 0)
+			return err;
+	}
 	strcpy(card->driver, pcm->name);
 	strcpy(card->shortname, pcm->name);
 	sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i",
@@ -579,13 +561,14 @@ static struct isa_driver cs423x_isa_driver = {
 
 
 #ifdef CONFIG_PNP
-#ifdef CS4232
-static int __devinit snd_cs4232_pnpbios_detect(struct pnp_dev *pdev,
+static int __devinit snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
 					       const struct pnp_device_id *id)
 {
 	static int dev;
 	int err;
 	struct snd_card *card;
+	struct pnp_dev *cdev;
+	char cid[PNP_ID_LEN];
 
 	if (pnp_device_is_isapnp(pdev))
 		return -ENOENT;	/* we have another procedure - card */
@@ -596,10 +579,19 @@ static int __devinit snd_cs4232_pnpbios_detect(struct pnp_dev *pdev,
 	if (dev >= SNDRV_CARDS)
 		return -ENODEV;
 
+	/* prepare second id */
+	strcpy(cid, pdev->id[0].id);
+	cid[5] = '1';
+	cdev = NULL;
+	list_for_each_entry(cdev, &(pdev->protocol->devices), protocol_list) {
+		if (!strcmp(cdev->id[0].id, cid))
+			break;
+	}
 	err = snd_cs423x_card_new(dev, &card);
 	if (err < 0)
 		return err;
-	if ((err = snd_card_cs4232_pnp(dev, card->private_data, pdev)) < 0) {
+	err = snd_card_cs423x_pnp(dev, card->private_data, pdev, cdev);
+	if (err < 0) {
 		printk(KERN_ERR "PnP BIOS detection failed for " IDENT "\n");
 		snd_card_free(card);
 		return err;
@@ -614,35 +606,34 @@ static int __devinit snd_cs4232_pnpbios_detect(struct pnp_dev *pdev,
 	return 0;
 }
 
-static void __devexit snd_cs4232_pnp_remove(struct pnp_dev * pdev)
+static void __devexit snd_cs423x_pnp_remove(struct pnp_dev *pdev)
 {
 	snd_card_free(pnp_get_drvdata(pdev));
 	pnp_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
-static int snd_cs4232_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
+static int snd_cs423x_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
 {
 	return snd_cs423x_suspend(pnp_get_drvdata(pdev));
 }
 
-static int snd_cs4232_pnp_resume(struct pnp_dev *pdev)
+static int snd_cs423x_pnp_resume(struct pnp_dev *pdev)
 {
 	return snd_cs423x_resume(pnp_get_drvdata(pdev));
 }
 #endif
 
-static struct pnp_driver cs4232_pnp_driver = {
-	.name = "cs4232-pnpbios",
-	.id_table = snd_cs4232_pnpbiosids,
-	.probe = snd_cs4232_pnpbios_detect,
-	.remove = __devexit_p(snd_cs4232_pnp_remove),
+static struct pnp_driver cs423x_pnp_driver = {
+	.name = "cs423x-pnpbios",
+	.id_table = snd_cs423x_pnpbiosids,
+	.probe = snd_cs423x_pnpbios_detect,
+	.remove = __devexit_p(snd_cs423x_pnp_remove),
 #ifdef CONFIG_PM
-	.suspend	= snd_cs4232_pnp_suspend,
-	.resume		= snd_cs4232_pnp_resume,
+	.suspend	= snd_cs423x_pnp_suspend,
+	.resume		= snd_cs423x_pnp_resume,
 #endif
 };
-#endif /* CS4232 */
 
 static int __devinit snd_cs423x_pnpc_detect(struct pnp_card_link *pcard,
 					    const struct pnp_card_device_id *pid)
@@ -716,18 +707,14 @@ static int __init alsa_card_cs423x_init(void)
 #ifdef CONFIG_PNP
 	if (!err)
 		isa_registered = 1;
-#ifdef CS4232
-	err = pnp_register_driver(&cs4232_pnp_driver);
+	err = pnp_register_driver(&cs423x_pnp_driver);
 	if (!err)
 		pnp_registered = 1;
-#endif
 	err = pnp_register_card_driver(&cs423x_pnpc_driver);
 	if (!err)
 		pnpc_registered = 1;
-#ifdef CS4232
 	if (pnp_registered)
 		err = 0;
-#endif
 	if (isa_registered)
 		err = 0;
 #endif
@@ -739,10 +726,8 @@ static void __exit alsa_card_cs423x_exit(void)
 #ifdef CONFIG_PNP
 	if (pnpc_registered)
 		pnp_unregister_card_driver(&cs423x_pnpc_driver);
-#ifdef CS4232
 	if (pnp_registered)
-		pnp_unregister_driver(&cs4232_pnp_driver);
-#endif
+		pnp_unregister_driver(&cs423x_pnp_driver);
 	if (isa_registered)
 #endif
 		isa_unregister_driver(&cs423x_isa_driver);
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 8de5deda7ad6..ac27832b2c6f 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -1657,7 +1657,7 @@ static void snd_wss_resume(struct snd_wss *chip)
 }
 #endif /* CONFIG_PM */
 
-static int snd_wss_free(struct snd_wss *chip)
+int snd_wss_free(struct snd_wss *chip)
 {
 	release_and_free_resource(chip->res_port);
 	release_and_free_resource(chip->res_cport);
@@ -1680,6 +1680,7 @@ static int snd_wss_free(struct snd_wss *chip)
 	kfree(chip);
 	return 0;
 }
+EXPORT_SYMBOL(snd_wss_free);
 
 static int snd_wss_dev_free(struct snd_device *device)
 {
-- 
cgit v1.2.3


From 886a63e865eb346ab20572e802fc3118cb9aee14 Mon Sep 17 00:00:00 2001
From: Hannes Eder <hannes@hanneseder.net>
Date: Sat, 14 Feb 2009 11:36:20 +0000
Subject: drivers/net/hamradio: fix sparse warnings: fix signedness

Fix this sparse warnings:
  drivers/net/hamradio/hdlcdrv.c:274:34: warning: incorrect type in argument 2 (different signedness)
  drivers/net/hamradio/hdlcdrv.c:279:47: warning: incorrect type in argument 2 (different signedness)
  drivers/net/hamradio/hdlcdrv.c:288:39: warning: incorrect type in argument 2 (different signedness)
  drivers/net/hamradio/hdlcdrv.c:300:47: warning: incorrect type in argument 2 (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/hdlcdrv.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/hdlcdrv.h b/include/linux/hdlcdrv.h
index 0821bac62b83..c010b4a785b8 100644
--- a/include/linux/hdlcdrv.h
+++ b/include/linux/hdlcdrv.h
@@ -215,7 +215,7 @@ struct hdlcdrv_state {
 
 	struct hdlcdrv_hdlctx {
 		struct hdlcdrv_hdlcbuffer hbuf;
-		long in_hdlc_tx;
+		unsigned long in_hdlc_tx;
 		/*
 		 * 0 = send flags
 		 * 1 = send txtail (flags)
-- 
cgit v1.2.3


From 109568e110ed67d4be1b28609b9fa00fca97f8eb Mon Sep 17 00:00:00 2001
From: Huang Ying <ying.huang@intel.com>
Date: Fri, 9 Jan 2009 16:49:30 +1100
Subject: crypto: aes - Move key_length in struct crypto_aes_ctx to be the last
 field

The Intel AES-NI AES acceleration instructions need key_enc, key_dec
in struct crypto_aes_ctx to be 16 byte aligned, it make this easier to
move key_length to be the last one.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/aes-i586-asm_32.S   | 6 +++---
 arch/x86/crypto/aes-x86_64-asm_64.S | 4 ++--
 include/crypto/aes.h                | 6 +++++-
 3 files changed, 10 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/arch/x86/crypto/aes-i586-asm_32.S b/arch/x86/crypto/aes-i586-asm_32.S
index e41b147f4509..5252c3880177 100644
--- a/arch/x86/crypto/aes-i586-asm_32.S
+++ b/arch/x86/crypto/aes-i586-asm_32.S
@@ -46,9 +46,9 @@
 #define in_blk 16
 
 /* offsets in crypto_tfm structure */
-#define klen (crypto_tfm_ctx_offset + 0)
-#define ekey (crypto_tfm_ctx_offset + 4)
-#define dkey (crypto_tfm_ctx_offset + 244)
+#define klen (crypto_tfm_ctx_offset + 480)
+#define ekey (crypto_tfm_ctx_offset + 0)
+#define dkey (crypto_tfm_ctx_offset + 240)
 
 // register mapping for encrypt and decrypt subroutines
 
diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
index a120f526c3df..7f28f62737de 100644
--- a/arch/x86/crypto/aes-x86_64-asm_64.S
+++ b/arch/x86/crypto/aes-x86_64-asm_64.S
@@ -56,13 +56,13 @@
 	.align	8;			\
 FUNC:	movq	r1,r2;			\
 	movq	r3,r4;			\
-	leaq	BASE+KEY+48+4(r8),r9;	\
+	leaq	BASE+KEY+48(r8),r9;	\
 	movq	r10,r11;		\
 	movl	(r7),r5 ## E;		\
 	movl	4(r7),r1 ## E;		\
 	movl	8(r7),r6 ## E;		\
 	movl	12(r7),r7 ## E;		\
-	movl	BASE+0(r8),r10 ## E;	\
+	movl	BASE+480(r8),r10 ## E;	\
 	xorl	-48(r9),r5 ## E;	\
 	xorl	-44(r9),r1 ## E;	\
 	xorl	-40(r9),r6 ## E;	\
diff --git a/include/crypto/aes.h b/include/crypto/aes.h
index 656a4c66a568..7524ba3b6f3c 100644
--- a/include/crypto/aes.h
+++ b/include/crypto/aes.h
@@ -17,10 +17,14 @@
 #define AES_MAX_KEYLENGTH	(15 * 16)
 #define AES_MAX_KEYLENGTH_U32	(AES_MAX_KEYLENGTH / sizeof(u32))
 
+/*
+ * Please ensure that the first two fields are 16-byte aligned
+ * relative to the start of the structure, i.e., don't move them!
+ */
 struct crypto_aes_ctx {
-	u32 key_length;
 	u32 key_enc[AES_MAX_KEYLENGTH_U32];
 	u32 key_dec[AES_MAX_KEYLENGTH_U32];
+	u32 key_length;
 };
 
 extern const u32 crypto_ft_tab[4][256];
-- 
cgit v1.2.3


From 1cac2cbc76b9f3fce0d4ccc374e724e7f2533a47 Mon Sep 17 00:00:00 2001
From: Huang Ying <ying.huang@intel.com>
Date: Sun, 18 Jan 2009 16:19:46 +1100
Subject: crypto: cryptd - Add support to access underlying blkcipher

cryptd_alloc_ablkcipher() will allocate a cryptd-ed ablkcipher for
specified algorithm name. The new allocated one is guaranteed to be
cryptd-ed ablkcipher, so the blkcipher underlying can be gotten via
cryptd_ablkcipher_child().

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/cryptd.c         | 35 +++++++++++++++++++++++++++++++++++
 include/crypto/cryptd.h | 27 +++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 include/crypto/cryptd.h

(limited to 'include')

diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index d29e06b350ff..93b98c525b3a 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -12,6 +12,7 @@
 
 #include <crypto/algapi.h>
 #include <crypto/internal/hash.h>
+#include <crypto/cryptd.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -537,6 +538,40 @@ static struct crypto_template cryptd_tmpl = {
 	.module = THIS_MODULE,
 };
 
+struct cryptd_ablkcipher *cryptd_alloc_ablkcipher(const char *alg_name,
+						  u32 type, u32 mask)
+{
+	char cryptd_alg_name[CRYPTO_MAX_ALG_NAME];
+	struct crypto_ablkcipher *tfm;
+
+	if (snprintf(cryptd_alg_name, CRYPTO_MAX_ALG_NAME,
+		     "cryptd(%s)", alg_name) >= CRYPTO_MAX_ALG_NAME)
+		return ERR_PTR(-EINVAL);
+	tfm = crypto_alloc_ablkcipher(cryptd_alg_name, type, mask);
+	if (IS_ERR(tfm))
+		return ERR_CAST(tfm);
+	if (crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_module != THIS_MODULE) {
+		crypto_free_ablkcipher(tfm);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return __cryptd_ablkcipher_cast(tfm);
+}
+EXPORT_SYMBOL_GPL(cryptd_alloc_ablkcipher);
+
+struct crypto_blkcipher *cryptd_ablkcipher_child(struct cryptd_ablkcipher *tfm)
+{
+	struct cryptd_blkcipher_ctx *ctx = crypto_ablkcipher_ctx(&tfm->base);
+	return ctx->child;
+}
+EXPORT_SYMBOL_GPL(cryptd_ablkcipher_child);
+
+void cryptd_free_ablkcipher(struct cryptd_ablkcipher *tfm)
+{
+	crypto_free_ablkcipher(&tfm->base);
+}
+EXPORT_SYMBOL_GPL(cryptd_free_ablkcipher);
+
 static inline int cryptd_create_thread(struct cryptd_state *state,
 				       int (*fn)(void *data), const char *name)
 {
diff --git a/include/crypto/cryptd.h b/include/crypto/cryptd.h
new file mode 100644
index 000000000000..55fa7bbdbc71
--- /dev/null
+++ b/include/crypto/cryptd.h
@@ -0,0 +1,27 @@
+/*
+ * Software async crypto daemon
+ */
+
+#ifndef _CRYPTO_CRYPT_H
+#define _CRYPTO_CRYPT_H
+
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+
+struct cryptd_ablkcipher {
+	struct crypto_ablkcipher base;
+};
+
+static inline struct cryptd_ablkcipher *__cryptd_ablkcipher_cast(
+	struct crypto_ablkcipher *tfm)
+{
+	return (struct cryptd_ablkcipher *)tfm;
+}
+
+/* alg_name should be algorithm to be cryptd-ed */
+struct cryptd_ablkcipher *cryptd_alloc_ablkcipher(const char *alg_name,
+						  u32 type, u32 mask);
+struct crypto_blkcipher *cryptd_ablkcipher_child(struct cryptd_ablkcipher *tfm);
+void cryptd_free_ablkcipher(struct cryptd_ablkcipher *tfm);
+
+#endif
-- 
cgit v1.2.3


From 9749598633efc2561224954217ff0d70aeed8b50 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 3 Feb 2009 12:47:44 +1100
Subject: crypto: shash - Add crypto_shash_blocksize

This function is needed by algorithms that don't know their own
block size, e.g., in s390 where the code is common between multiple
versions of SHA.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 include/crypto/hash.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include')

diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index d797e119e3d5..d56bb71617c3 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -231,6 +231,11 @@ static inline unsigned int crypto_shash_alignmask(
 	return crypto_tfm_alg_alignmask(crypto_shash_tfm(tfm));
 }
 
+static inline unsigned int crypto_shash_blocksize(struct crypto_shash *tfm)
+{
+	return crypto_tfm_alg_blocksize(crypto_shash_tfm(tfm));
+}
+
 static inline struct shash_alg *__crypto_shash_alg(struct crypto_alg *alg)
 {
 	return container_of(alg, struct shash_alg, base);
-- 
cgit v1.2.3


From 3f683d6175748ef9daf4698d9ef5a488dd037063 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 18 Feb 2009 16:56:59 +0800
Subject: crypto: api - Fix crypto_alloc_tfm/create_create_tfm return
 convention

This is based on a report and patch by Geert Uytterhoeven.

The functions crypto_alloc_tfm and create_create_tfm return a
pointer that needs to be adjusted by the caller when successful
and otherwise an error value.  This means that the caller has
to check for the error and only perform the adjustment if the
pointer returned is valid.

Since all callers want to make the adjustment and we know how
to adjust it ourselves, it's much easier to just return adjusted
pointer directly.

The only caveat is that we have to return a void * instead of
struct crypto_tfm *.  However, this isn't that bad because both
of these functions are for internal use only (by types code like
shash.c, not even algorithms code).

This patch also moves crypto_alloc_tfm into crypto/internal.h
(crypto_create_tfm is already there) to reflect this.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/api.c           | 15 +++++++--------
 crypto/internal.h      |  6 ++++--
 crypto/shash.c         | 18 +++++-------------
 include/linux/crypto.h |  3 ---
 4 files changed, 16 insertions(+), 26 deletions(-)

(limited to 'include')

diff --git a/crypto/api.c b/crypto/api.c
index 56b6e0e66311..22385cac90bb 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -453,8 +453,8 @@ err:
 }
 EXPORT_SYMBOL_GPL(crypto_alloc_base);
 
-struct crypto_tfm *crypto_create_tfm(struct crypto_alg *alg,
-				     const struct crypto_type *frontend)
+void *crypto_create_tfm(struct crypto_alg *alg,
+			const struct crypto_type *frontend)
 {
 	char *mem;
 	struct crypto_tfm *tfm = NULL;
@@ -488,9 +488,9 @@ out_free_tfm:
 		crypto_shoot_alg(alg);
 	kfree(mem);
 out_err:
-	tfm = ERR_PTR(err);
+	mem = ERR_PTR(err);
 out:
-	return tfm;
+	return mem;
 }
 EXPORT_SYMBOL_GPL(crypto_create_tfm);
 
@@ -514,12 +514,11 @@ EXPORT_SYMBOL_GPL(crypto_create_tfm);
  *
  *	In case of error the return value is an error pointer.
  */
-struct crypto_tfm *crypto_alloc_tfm(const char *alg_name,
-				    const struct crypto_type *frontend,
-				    u32 type, u32 mask)
+void *crypto_alloc_tfm(const char *alg_name,
+		       const struct crypto_type *frontend, u32 type, u32 mask)
 {
 	struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask);
-	struct crypto_tfm *tfm;
+	void *tfm;
 	int err;
 
 	type &= frontend->maskclear;
diff --git a/crypto/internal.h b/crypto/internal.h
index 3c19a27a7563..fc76e1f37fc3 100644
--- a/crypto/internal.h
+++ b/crypto/internal.h
@@ -109,8 +109,10 @@ void crypto_alg_tested(const char *name, int err);
 void crypto_shoot_alg(struct crypto_alg *alg);
 struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
 				      u32 mask);
-struct crypto_tfm *crypto_create_tfm(struct crypto_alg *alg,
-				     const struct crypto_type *frontend);
+void *crypto_create_tfm(struct crypto_alg *alg,
+			const struct crypto_type *frontend);
+void *crypto_alloc_tfm(const char *alg_name,
+		       const struct crypto_type *frontend, u32 type, u32 mask);
 
 int crypto_register_instance(struct crypto_template *tmpl,
 			     struct crypto_instance *inst);
diff --git a/crypto/shash.c b/crypto/shash.c
index 13a0dc150a4d..7a659733f94a 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -18,15 +18,10 @@
 #include <linux/slab.h>
 #include <linux/seq_file.h>
 
-static const struct crypto_type crypto_shash_type;
-
-static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm)
-{
-	return container_of(tfm, struct crypto_shash, base);
-}
-
 #include "internal.h"
 
+static const struct crypto_type crypto_shash_type;
+
 static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
 				  unsigned int keylen)
 {
@@ -282,8 +277,7 @@ static int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
 	if (!crypto_mod_get(calg))
 		return -EAGAIN;
 
-	shash = __crypto_shash_cast(crypto_create_tfm(
-		calg, &crypto_shash_type));
+	shash = crypto_create_tfm(calg, &crypto_shash_type);
 	if (IS_ERR(shash)) {
 		crypto_mod_put(calg);
 		return PTR_ERR(shash);
@@ -391,8 +385,7 @@ static int crypto_init_shash_ops_compat(struct crypto_tfm *tfm)
 	if (!crypto_mod_get(calg))
 		return -EAGAIN;
 
-	shash = __crypto_shash_cast(crypto_create_tfm(
-		calg, &crypto_shash_type));
+	shash = crypto_create_tfm(calg, &crypto_shash_type);
 	if (IS_ERR(shash)) {
 		crypto_mod_put(calg);
 		return PTR_ERR(shash);
@@ -480,8 +473,7 @@ static const struct crypto_type crypto_shash_type = {
 struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type,
 					u32 mask)
 {
-	return __crypto_shash_cast(
-		crypto_alloc_tfm(alg_name, &crypto_shash_type, type, mask));
+	return crypto_alloc_tfm(alg_name, &crypto_shash_type, type, mask);
 }
 EXPORT_SYMBOL_GPL(crypto_alloc_shash);
 
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 1f2e9020acc6..29729b834380 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -548,9 +548,6 @@ struct crypto_attr_u32 {
  * Transform user interface.
  */
  
-struct crypto_tfm *crypto_alloc_tfm(const char *alg_name,
-				    const struct crypto_type *frontend,
-				    u32 type, u32 mask);
 struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask);
 void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm);
 
-- 
cgit v1.2.3


From 4a2f965ca5a4e2593744bf75425d85e0e8ff814a Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Wed, 18 Feb 2009 16:29:44 +0100
Subject: netfilter: x_tables: change elements in x_tables

Change to proper type on private pointer rather than anonymous void.
Keep active elements on same cache line.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/linux/netfilter/x_tables.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index c7ee8744d26b..9fac88fc0e72 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -349,9 +349,6 @@ struct xt_table
 {
 	struct list_head list;
 
-	/* A unique name... */
-	const char name[XT_TABLE_MAXNAMELEN];
-
 	/* What hooks you will enter on */
 	unsigned int valid_hooks;
 
@@ -359,13 +356,15 @@ struct xt_table
 	rwlock_t lock;
 
 	/* Man behind the curtain... */
-	//struct ip6t_table_info *private;
-	void *private;
+	struct xt_table_info *private;
 
 	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
 	struct module *me;
 
 	u_int8_t af;		/* address/protocol family */
+
+	/* A unique name... */
+	const char name[XT_TABLE_MAXNAMELEN];
 };
 
 #include <linux/netfilter_ipv4.h>
-- 
cgit v1.2.3


From 74019224ac34b044b44a31dd89a54e3477db4896 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 18 Feb 2009 12:23:29 +0100
Subject: timers: add mod_timer_pending()

Impact: new timer API

Based on an idea from Martin Josefsson with the help of
Patrick McHardy and Stephen Hemminger:

introduce the mod_timer_pending() API which is a mod_timer()
offspring that is an invariant on already removed timers.

(regular mod_timer() re-activates non-pending timers.)

This is useful for the networking code in that it can
allow unserialized mod_timer_pending() timer-forwarding
calls, but a single del_timer*() will stop the timer
from being reactivated again.

Also while at it:

- optimize the regular mod_timer() path some more, the
  timer-stat and a debug check was needlessly duplicated
  in __mod_timer().

- make the exports come straight after the function, as
  most other exports in timer.c already did.

- eliminate __mod_timer() as an external API, change the
  users to mod_timer().

The regular mod_timer() code path is not impacted
significantly, due to inlining optimizations and due to
the simplifications.

Based-on-patch-from: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Cc: netdev@vger.kernel.org
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/powerpc/platforms/cell/spufs/sched.c  |   2 +-
 drivers/infiniband/hw/ipath/ipath_driver.c |   6 +-
 include/linux/timer.h                      |  22 +-----
 kernel/relay.c                             |   2 +-
 kernel/timer.c                             | 110 +++++++++++++++++++----------
 5 files changed, 80 insertions(+), 62 deletions(-)

(limited to 'include')

diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 6a0ad196aeb3..f085369301b1 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -508,7 +508,7 @@ static void __spu_add_to_rq(struct spu_context *ctx)
 		list_add_tail(&ctx->rq, &spu_prio->runq[ctx->prio]);
 		set_bit(ctx->prio, spu_prio->bitmap);
 		if (!spu_prio->nr_waiting++)
-			__mod_timer(&spusched_timer, jiffies + SPUSCHED_TICK);
+			mod_timer(&spusched_timer, jiffies + SPUSCHED_TICK);
 	}
 }
 
diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 69c0ce321b4e..cb9daa6ac029 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -2715,7 +2715,7 @@ static void ipath_hol_signal_up(struct ipath_devdata *dd)
  * to prevent HoL blocking, then start the HoL timer that
  * periodically continues, then stop procs, so they can detect
  * link down if they want, and do something about it.
- * Timer may already be running, so use __mod_timer, not add_timer.
+ * Timer may already be running, so use mod_timer, not add_timer.
  */
 void ipath_hol_down(struct ipath_devdata *dd)
 {
@@ -2724,7 +2724,7 @@ void ipath_hol_down(struct ipath_devdata *dd)
 	dd->ipath_hol_next = IPATH_HOL_DOWNCONT;
 	dd->ipath_hol_timer.expires = jiffies +
 		msecs_to_jiffies(ipath_hol_timeout_ms);
-	__mod_timer(&dd->ipath_hol_timer, dd->ipath_hol_timer.expires);
+	mod_timer(&dd->ipath_hol_timer, dd->ipath_hol_timer.expires);
 }
 
 /*
@@ -2763,7 +2763,7 @@ void ipath_hol_event(unsigned long opaque)
 	else {
 		dd->ipath_hol_timer.expires = jiffies +
 			msecs_to_jiffies(ipath_hol_timeout_ms);
-		__mod_timer(&dd->ipath_hol_timer,
+		mod_timer(&dd->ipath_hol_timer,
 			dd->ipath_hol_timer.expires);
 	}
 }
diff --git a/include/linux/timer.h b/include/linux/timer.h
index daf9685b861c..e2d662e3416e 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -86,8 +86,8 @@ static inline int timer_pending(const struct timer_list * timer)
 
 extern void add_timer_on(struct timer_list *timer, int cpu);
 extern int del_timer(struct timer_list * timer);
-extern int __mod_timer(struct timer_list *timer, unsigned long expires);
 extern int mod_timer(struct timer_list *timer, unsigned long expires);
+extern int mod_timer_pending(struct timer_list *timer, unsigned long expires);
 
 /*
  * The jiffies value which is added to now, when there is no timer
@@ -146,25 +146,7 @@ static inline void timer_stats_timer_clear_start_info(struct timer_list *timer)
 }
 #endif
 
-/**
- * add_timer - start a timer
- * @timer: the timer to be added
- *
- * The kernel will do a ->function(->data) callback from the
- * timer interrupt at the ->expires point in the future. The
- * current time is 'jiffies'.
- *
- * The timer's ->expires, ->function (and if the handler uses it, ->data)
- * fields must be set prior calling this function.
- *
- * Timers with an ->expires field in the past will be executed in the next
- * timer tick.
- */
-static inline void add_timer(struct timer_list *timer)
-{
-	BUG_ON(timer_pending(timer));
-	__mod_timer(timer, timer->expires);
-}
+extern void add_timer(struct timer_list *timer);
 
 #ifdef CONFIG_SMP
   extern int try_to_del_timer_sync(struct timer_list *timer);
diff --git a/kernel/relay.c b/kernel/relay.c
index 9d79b7854fa6..8f2179c8056f 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -750,7 +750,7 @@ size_t relay_switch_subbuf(struct rchan_buf *buf, size_t length)
 			 * from the scheduler (trying to re-grab
 			 * rq->lock), so defer it.
 			 */
-			__mod_timer(&buf->timer, jiffies + 1);
+			mod_timer(&buf->timer, jiffies + 1);
 	}
 
 	old = buf->data;
diff --git a/kernel/timer.c b/kernel/timer.c
index 13dd64fe143d..9b77fc9a9ac8 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -589,11 +589,14 @@ static struct tvec_base *lock_timer_base(struct timer_list *timer,
 	}
 }
 
-int __mod_timer(struct timer_list *timer, unsigned long expires)
+static inline int
+__mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only)
 {
 	struct tvec_base *base, *new_base;
 	unsigned long flags;
-	int ret = 0;
+	int ret;
+
+	ret = 0;
 
 	timer_stats_timer_set_start_info(timer);
 	BUG_ON(!timer->function);
@@ -603,6 +606,9 @@ int __mod_timer(struct timer_list *timer, unsigned long expires)
 	if (timer_pending(timer)) {
 		detach_timer(timer, 0);
 		ret = 1;
+	} else {
+		if (pending_only)
+			goto out_unlock;
 	}
 
 	debug_timer_activate(timer);
@@ -629,42 +635,28 @@ int __mod_timer(struct timer_list *timer, unsigned long expires)
 
 	timer->expires = expires;
 	internal_add_timer(base, timer);
+
+out_unlock:
 	spin_unlock_irqrestore(&base->lock, flags);
 
 	return ret;
 }
 
-EXPORT_SYMBOL(__mod_timer);
-
 /**
- * add_timer_on - start a timer on a particular CPU
- * @timer: the timer to be added
- * @cpu: the CPU to start it on
+ * mod_timer_pending - modify a pending timer's timeout
+ * @timer: the pending timer to be modified
+ * @expires: new timeout in jiffies
  *
- * This is not very scalable on SMP. Double adds are not possible.
+ * mod_timer_pending() is the same for pending timers as mod_timer(),
+ * but will not re-activate and modify already deleted timers.
+ *
+ * It is useful for unserialized use of timers.
  */
-void add_timer_on(struct timer_list *timer, int cpu)
+int mod_timer_pending(struct timer_list *timer, unsigned long expires)
 {
-	struct tvec_base *base = per_cpu(tvec_bases, cpu);
-	unsigned long flags;
-
-	timer_stats_timer_set_start_info(timer);
-	BUG_ON(timer_pending(timer) || !timer->function);
-	spin_lock_irqsave(&base->lock, flags);
-	timer_set_base(timer, base);
-	debug_timer_activate(timer);
-	internal_add_timer(base, timer);
-	/*
-	 * Check whether the other CPU is idle and needs to be
-	 * triggered to reevaluate the timer wheel when nohz is
-	 * active. We are protected against the other CPU fiddling
-	 * with the timer by holding the timer base lock. This also
-	 * makes sure that a CPU on the way to idle can not evaluate
-	 * the timer wheel.
-	 */
-	wake_up_idle_cpu(cpu);
-	spin_unlock_irqrestore(&base->lock, flags);
+	return __mod_timer(timer, expires, true);
 }
+EXPORT_SYMBOL(mod_timer_pending);
 
 /**
  * mod_timer - modify a timer's timeout
@@ -688,9 +680,6 @@ void add_timer_on(struct timer_list *timer, int cpu)
  */
 int mod_timer(struct timer_list *timer, unsigned long expires)
 {
-	BUG_ON(!timer->function);
-
-	timer_stats_timer_set_start_info(timer);
 	/*
 	 * This is a common optimization triggered by the
 	 * networking code - if the timer is re-modified
@@ -699,11 +688,61 @@ int mod_timer(struct timer_list *timer, unsigned long expires)
 	if (timer->expires == expires && timer_pending(timer))
 		return 1;
 
-	return __mod_timer(timer, expires);
+	return __mod_timer(timer, expires, false);
 }
-
 EXPORT_SYMBOL(mod_timer);
 
+/**
+ * add_timer - start a timer
+ * @timer: the timer to be added
+ *
+ * The kernel will do a ->function(->data) callback from the
+ * timer interrupt at the ->expires point in the future. The
+ * current time is 'jiffies'.
+ *
+ * The timer's ->expires, ->function (and if the handler uses it, ->data)
+ * fields must be set prior calling this function.
+ *
+ * Timers with an ->expires field in the past will be executed in the next
+ * timer tick.
+ */
+void add_timer(struct timer_list *timer)
+{
+	BUG_ON(timer_pending(timer));
+	mod_timer(timer, timer->expires);
+}
+EXPORT_SYMBOL(add_timer);
+
+/**
+ * add_timer_on - start a timer on a particular CPU
+ * @timer: the timer to be added
+ * @cpu: the CPU to start it on
+ *
+ * This is not very scalable on SMP. Double adds are not possible.
+ */
+void add_timer_on(struct timer_list *timer, int cpu)
+{
+	struct tvec_base *base = per_cpu(tvec_bases, cpu);
+	unsigned long flags;
+
+	timer_stats_timer_set_start_info(timer);
+	BUG_ON(timer_pending(timer) || !timer->function);
+	spin_lock_irqsave(&base->lock, flags);
+	timer_set_base(timer, base);
+	debug_timer_activate(timer);
+	internal_add_timer(base, timer);
+	/*
+	 * Check whether the other CPU is idle and needs to be
+	 * triggered to reevaluate the timer wheel when nohz is
+	 * active. We are protected against the other CPU fiddling
+	 * with the timer by holding the timer base lock. This also
+	 * makes sure that a CPU on the way to idle can not evaluate
+	 * the timer wheel.
+	 */
+	wake_up_idle_cpu(cpu);
+	spin_unlock_irqrestore(&base->lock, flags);
+}
+
 /**
  * del_timer - deactive a timer.
  * @timer: the timer to be deactivated
@@ -733,7 +772,6 @@ int del_timer(struct timer_list *timer)
 
 	return ret;
 }
-
 EXPORT_SYMBOL(del_timer);
 
 #ifdef CONFIG_SMP
@@ -767,7 +805,6 @@ out:
 
 	return ret;
 }
-
 EXPORT_SYMBOL(try_to_del_timer_sync);
 
 /**
@@ -796,7 +833,6 @@ int del_timer_sync(struct timer_list *timer)
 		cpu_relax();
 	}
 }
-
 EXPORT_SYMBOL(del_timer_sync);
 #endif
 
@@ -1268,7 +1304,7 @@ signed long __sched schedule_timeout(signed long timeout)
 	expire = timeout + jiffies;
 
 	setup_timer_on_stack(&timer, process_timeout, (unsigned long)current);
-	__mod_timer(&timer, expire);
+	__mod_timer(&timer, expire, false);
 	schedule();
 	del_singleshot_timer_sync(&timer);
 
-- 
cgit v1.2.3


From 712406a6bf59ebf4a00358bb59a4a2a1b2953d90 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <srostedt@redhat.com>
Date: Mon, 9 Feb 2009 10:54:03 -0800
Subject: tracing/function-graph-tracer: make arch generic push pop functions

There is nothing really arch specific of the push and pop functions
used by the function graph tracer. This patch moves them to generic
code.

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
---
 arch/x86/include/asm/ftrace.h        | 25 ------------
 arch/x86/kernel/dumpstack.c          |  1 +
 arch/x86/kernel/ftrace.c             | 75 +-----------------------------------
 include/linux/ftrace.h               | 24 ++++++++++++
 kernel/trace/trace_functions_graph.c | 75 ++++++++++++++++++++++++++++++++++++
 5 files changed, 101 insertions(+), 99 deletions(-)

(limited to 'include')

diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index b55b4a7fbefd..db24c2278be0 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -55,29 +55,4 @@ struct dyn_arch_ftrace {
 #endif /* __ASSEMBLY__ */
 #endif /* CONFIG_FUNCTION_TRACER */
 
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-
-#ifndef __ASSEMBLY__
-
-/*
- * Stack of return addresses for functions
- * of a thread.
- * Used in struct thread_info
- */
-struct ftrace_ret_stack {
-	unsigned long ret;
-	unsigned long func;
-	unsigned long long calltime;
-};
-
-/*
- * Primary handler of a function return.
- * It relays on ftrace_return_to_handler.
- * Defined in entry_32/64.S
- */
-extern void return_to_handler(void);
-
-#endif /* __ASSEMBLY__ */
-#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
-
 #endif /* _ASM_X86_FTRACE_H */
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 6b1f6f6f8661..c0852291b623 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -10,6 +10,7 @@
 #include <linux/kdebug.h>
 #include <linux/module.h>
 #include <linux/ptrace.h>
+#include <linux/ftrace.h>
 #include <linux/kexec.h>
 #include <linux/bug.h>
 #include <linux/nmi.h>
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 231bdd3c5b1c..76f7141e0f91 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -389,79 +389,6 @@ void ftrace_nmi_exit(void)
 
 #endif /* !CONFIG_DYNAMIC_FTRACE */
 
-/* Add a function return address to the trace stack on thread info.*/
-static int push_return_trace(unsigned long ret, unsigned long long time,
-				unsigned long func, int *depth)
-{
-	int index;
-
-	if (!current->ret_stack)
-		return -EBUSY;
-
-	/* The return trace stack is full */
-	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
-		atomic_inc(&current->trace_overrun);
-		return -EBUSY;
-	}
-
-	index = ++current->curr_ret_stack;
-	barrier();
-	current->ret_stack[index].ret = ret;
-	current->ret_stack[index].func = func;
-	current->ret_stack[index].calltime = time;
-	*depth = index;
-
-	return 0;
-}
-
-/* Retrieve a function return address to the trace stack on thread info.*/
-static void pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret)
-{
-	int index;
-
-	index = current->curr_ret_stack;
-
-	if (unlikely(index < 0)) {
-		ftrace_graph_stop();
-		WARN_ON(1);
-		/* Might as well panic, otherwise we have no where to go */
-		*ret = (unsigned long)panic;
-		return;
-	}
-
-	*ret = current->ret_stack[index].ret;
-	trace->func = current->ret_stack[index].func;
-	trace->calltime = current->ret_stack[index].calltime;
-	trace->overrun = atomic_read(&current->trace_overrun);
-	trace->depth = index;
-	barrier();
-	current->curr_ret_stack--;
-
-}
-
-/*
- * Send the trace to the ring-buffer.
- * @return the original return address.
- */
-unsigned long ftrace_return_to_handler(void)
-{
-	struct ftrace_graph_ret trace;
-	unsigned long ret;
-
-	pop_return_trace(&trace, &ret);
-	trace.rettime = cpu_clock(raw_smp_processor_id());
-	ftrace_graph_return(&trace);
-
-	if (unlikely(!ret)) {
-		ftrace_graph_stop();
-		WARN_ON(1);
-		/* Might as well panic. What else to do? */
-		ret = (unsigned long)panic;
-	}
-
-	return ret;
-}
-
 /*
  * Hook the return address and push it in the stack of return addrs
  * in current thread info.
@@ -521,7 +448,7 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
 
 	calltime = cpu_clock(raw_smp_processor_id());
 
-	if (push_return_trace(old, calltime,
+	if (ftrace_push_return_trace(old, calltime,
 				self_addr, &trace.depth) == -EBUSY) {
 		*parent = old;
 		return;
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 677432b9cb7e..a7f8134c594e 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -379,6 +379,30 @@ struct ftrace_graph_ret {
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 
+/*
+ * Stack of return addresses for functions
+ * of a thread.
+ * Used in struct thread_info
+ */
+struct ftrace_ret_stack {
+	unsigned long ret;
+	unsigned long func;
+	unsigned long long calltime;
+};
+
+/*
+ * Primary handler of a function return.
+ * It relays on ftrace_return_to_handler.
+ * Defined in entry_32/64.S
+ */
+extern void return_to_handler(void);
+
+extern int
+ftrace_push_return_trace(unsigned long ret, unsigned long long time,
+			 unsigned long func, int *depth);
+extern void
+ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret);
+
 /*
  * Sometimes we don't want to trace a function with the function
  * graph tracer but we want them to keep traced by the usual function
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 930c08e5b38e..dce71a5b51bc 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -42,6 +42,81 @@ static struct tracer_flags tracer_flags = {
 /* pid on the last trace processed */
 static pid_t last_pid[NR_CPUS] = { [0 ... NR_CPUS-1] = -1 };
 
+/* Add a function return address to the trace stack on thread info.*/
+int
+ftrace_push_return_trace(unsigned long ret, unsigned long long time,
+			 unsigned long func, int *depth)
+{
+	int index;
+
+	if (!current->ret_stack)
+		return -EBUSY;
+
+	/* The return trace stack is full */
+	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
+		atomic_inc(&current->trace_overrun);
+		return -EBUSY;
+	}
+
+	index = ++current->curr_ret_stack;
+	barrier();
+	current->ret_stack[index].ret = ret;
+	current->ret_stack[index].func = func;
+	current->ret_stack[index].calltime = time;
+	*depth = index;
+
+	return 0;
+}
+
+/* Retrieve a function return address to the trace stack on thread info.*/
+void
+ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret)
+{
+	int index;
+
+	index = current->curr_ret_stack;
+
+	if (unlikely(index < 0)) {
+		ftrace_graph_stop();
+		WARN_ON(1);
+		/* Might as well panic, otherwise we have no where to go */
+		*ret = (unsigned long)panic;
+		return;
+	}
+
+	*ret = current->ret_stack[index].ret;
+	trace->func = current->ret_stack[index].func;
+	trace->calltime = current->ret_stack[index].calltime;
+	trace->overrun = atomic_read(&current->trace_overrun);
+	trace->depth = index;
+	barrier();
+	current->curr_ret_stack--;
+
+}
+
+/*
+ * Send the trace to the ring-buffer.
+ * @return the original return address.
+ */
+unsigned long ftrace_return_to_handler(void)
+{
+	struct ftrace_graph_ret trace;
+	unsigned long ret;
+
+	ftrace_pop_return_trace(&trace, &ret);
+	trace.rettime = cpu_clock(raw_smp_processor_id());
+	ftrace_graph_return(&trace);
+
+	if (unlikely(!ret)) {
+		ftrace_graph_stop();
+		WARN_ON(1);
+		/* Might as well panic. What else to do? */
+		ret = (unsigned long)panic;
+	}
+
+	return ret;
+}
+
 static int graph_trace_init(struct trace_array *tr)
 {
 	int cpu, ret;
-- 
cgit v1.2.3


From 25c38d3fb92fc23af7730a1601bc20af8216ae44 Mon Sep 17 00:00:00 2001
From: Huang Ying <ying.huang@intel.com>
Date: Thu, 19 Feb 2009 14:33:40 +0800
Subject: crypto: api - Use dedicated workqueue for crypto subsystem

Use dedicated workqueue for crypto subsystem

A dedicated workqueue named kcrypto_wq is created to be used by crypto
subsystem. The system shared keventd_wq is not suitable for
encryption/decryption, because of potential starvation problem.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Kconfig             |  3 +++
 crypto/Makefile            |  2 ++
 crypto/crypto_wq.c         | 38 ++++++++++++++++++++++++++++++++++++++
 include/crypto/crypto_wq.h |  7 +++++++
 4 files changed, 50 insertions(+)
 create mode 100644 crypto/crypto_wq.c
 create mode 100644 include/crypto/crypto_wq.h

(limited to 'include')

diff --git a/crypto/Kconfig b/crypto/Kconfig
index a83ce0462b6b..420b630a17cf 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -106,6 +106,9 @@ config CRYPTO_NULL
 	help
 	  These are 'Null' algorithms, used by IPsec, which do nothing.
 
+config CRYPTO_WORKQUEUE
+       tristate
+
 config CRYPTO_CRYPTD
 	tristate "Software async crypto daemon"
 	select CRYPTO_BLKCIPHER
diff --git a/crypto/Makefile b/crypto/Makefile
index 46b08bf2035f..e05a844e08d5 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -5,6 +5,8 @@
 obj-$(CONFIG_CRYPTO) += crypto.o
 crypto-objs := api.o cipher.o digest.o compress.o
 
+obj-$(CONFIG_CRYPTO_WORKQUEUE) += crypto_wq.o
+
 obj-$(CONFIG_CRYPTO_FIPS) += fips.o
 
 crypto_algapi-$(CONFIG_PROC_FS) += proc.o
diff --git a/crypto/crypto_wq.c b/crypto/crypto_wq.c
new file mode 100644
index 000000000000..fdcf6248f152
--- /dev/null
+++ b/crypto/crypto_wq.c
@@ -0,0 +1,38 @@
+/*
+ * Workqueue for crypto subsystem
+ *
+ * Copyright (c) 2009 Intel Corp.
+ *   Author: Huang Ying <ying.huang@intel.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/workqueue.h>
+#include <crypto/algapi.h>
+#include <crypto/crypto_wq.h>
+
+struct workqueue_struct *kcrypto_wq;
+EXPORT_SYMBOL_GPL(kcrypto_wq);
+
+static int __init crypto_wq_init(void)
+{
+	kcrypto_wq = create_workqueue("crypto");
+	if (unlikely(!kcrypto_wq))
+		return -ENOMEM;
+	return 0;
+}
+
+static void __exit crypto_wq_exit(void)
+{
+	destroy_workqueue(kcrypto_wq);
+}
+
+module_init(crypto_wq_init);
+module_exit(crypto_wq_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Workqueue for crypto subsystem");
diff --git a/include/crypto/crypto_wq.h b/include/crypto/crypto_wq.h
new file mode 100644
index 000000000000..a7d252daf91b
--- /dev/null
+++ b/include/crypto/crypto_wq.h
@@ -0,0 +1,7 @@
+#ifndef CRYPTO_WQ_H
+#define CRYPTO_WQ_H
+
+#include <linux/workqueue.h>
+
+extern struct workqueue_struct *kcrypto_wq;
+#endif
-- 
cgit v1.2.3


From 59089d8d162ddcb5c434672e915331964d38a754 Mon Sep 17 00:00:00 2001
From: Santwona Behera <santwona.behera@sun.com>
Date: Fri, 20 Feb 2009 00:58:13 -0800
Subject: ethtool: Add RX pkt classification interface

Signed-off-by: Santwona Behera <santwona.behera@sun.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/ethtool.h | 89 +++++++++++++++++++++++++++++++++++++++++++++----
 net/core/ethtool.c      | 58 ++++++++++++++++++++++++++------
 2 files changed, 131 insertions(+), 16 deletions(-)

(limited to 'include')

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 27c67a542235..131b127b70f8 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -7,6 +7,7 @@
  * Portions Copyright 2002 Intel (eli.kupermann@intel.com,
  *                                christopher.leech@intel.com,
  *                                scott.feldman@intel.com)
+ * Portions Copyright (C) Sun Microsystems 2008
  */
 
 #ifndef _LINUX_ETHTOOL_H
@@ -287,10 +288,75 @@ enum ethtool_flags {
 	ETH_FLAG_LRO		= (1 << 15),	/* LRO is enabled */
 };
 
-struct ethtool_rxnfc {
-	__u32		cmd;
+/* The following structures are for supporting RX network flow
+ * classification configuration. Note, all multibyte fields, e.g.,
+ * ip4src, ip4dst, psrc, pdst, spi, etc. are expected to be in network
+ * byte order.
+ */
+struct ethtool_tcpip4_spec {
+	__be32	ip4src;
+	__be32	ip4dst;
+	__be16	psrc;
+	__be16	pdst;
+	__u8    tos;
+};
+
+struct ethtool_ah_espip4_spec {
+	__be32	ip4src;
+	__be32	ip4dst;
+	__be32	spi;
+	__u8    tos;
+};
+
+struct ethtool_rawip4_spec {
+	__be32	ip4src;
+	__be32	ip4dst;
+	__u8	hdata[64];
+};
+
+struct ethtool_ether_spec {
+	__be16	ether_type;
+	__u8	frame_size;
+	__u8	eframe[16];
+};
+
+#define	ETH_RX_NFC_IP4	1
+#define	ETH_RX_NFC_IP6	2
+
+struct ethtool_usrip4_spec {
+	__be32	ip4src;
+	__be32	ip4dst;
+	__be32	l4_4_bytes;
+	__u8    tos;
+	__u8    ip_ver;
+	__u8    proto;
+};
+
+struct ethtool_rx_flow_spec {
 	__u32		flow_type;
-	__u64		data;
+	union {
+		struct ethtool_tcpip4_spec		tcp_ip4_spec;
+		struct ethtool_tcpip4_spec		udp_ip4_spec;
+		struct ethtool_tcpip4_spec		sctp_ip4_spec;
+		struct ethtool_ah_espip4_spec		ah_ip4_spec;
+		struct ethtool_ah_espip4_spec		esp_ip4_spec;
+		struct ethtool_rawip4_spec		raw_ip4_spec;
+		struct ethtool_ether_spec		ether_spec;
+		struct ethtool_usrip4_spec		usr_ip4_spec;
+		__u8					hdata[64];
+	} h_u, m_u; /* entry, mask */
+	__u64		ring_cookie;
+	__u32		location;
+};
+
+struct ethtool_rxnfc {
+	__u32				cmd;
+	__u32				flow_type;
+	/* The rx flow hash value or the rule DB size */
+	__u64				data;
+	struct ethtool_rx_flow_spec	fs;
+	__u32				rule_cnt;
+	__u32				rule_locs[0];
 };
 
 #ifdef __KERNEL__
@@ -417,8 +483,8 @@ struct ethtool_ops {
 	/* the following hooks are obsolete */
 	int	(*self_test_count)(struct net_device *);/* use get_sset_count */
 	int	(*get_stats_count)(struct net_device *);/* use get_sset_count */
-	int	(*get_rxhash)(struct net_device *, struct ethtool_rxnfc *);
-	int	(*set_rxhash)(struct net_device *, struct ethtool_rxnfc *);
+	int	(*get_rxnfc)(struct net_device *, struct ethtool_rxnfc *, void *);
+	int	(*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
 };
 #endif /* __KERNEL__ */
 
@@ -469,6 +535,12 @@ struct ethtool_ops {
 #define	ETHTOOL_SRXFH		0x0000002a /* Set RX flow hash configuration */
 #define ETHTOOL_GGRO		0x0000002b /* Get GRO enable (ethtool_value) */
 #define ETHTOOL_SGRO		0x0000002c /* Set GRO enable (ethtool_value) */
+#define	ETHTOOL_GRXRINGS	0x0000002d /* Get RX rings available for LB */
+#define	ETHTOOL_GRXCLSRLCNT	0x0000002e /* Get RX class rule count */
+#define	ETHTOOL_GRXCLSRULE	0x0000002f /* Get RX classification rule */
+#define	ETHTOOL_GRXCLSRLALL	0x00000030 /* Get all RX classification rule */
+#define	ETHTOOL_SRXCLSRLDEL	0x00000031 /* Delete RX classification rule */
+#define	ETHTOOL_SRXCLSRLINS	0x00000032 /* Insert RX classification rule */
 
 /* compatibility with older code */
 #define SPARC_ETH_GSET		ETHTOOL_GSET
@@ -565,9 +637,13 @@ struct ethtool_ops {
 #define	UDP_V6_FLOW	0x06
 #define	SCTP_V6_FLOW	0x07
 #define	AH_ESP_V6_FLOW	0x08
+#define	AH_V4_FLOW	0x09
+#define	ESP_V4_FLOW	0x0a
+#define	AH_V6_FLOW	0x0b
+#define	ESP_V6_FLOW	0x0c
+#define	IP_USER_FLOW	0x0d
 
 /* L3-L4 network traffic flow hash options */
-#define	RXH_DEV_PORT	(1 << 0)
 #define	RXH_L2DA	(1 << 1)
 #define	RXH_VLAN	(1 << 2)
 #define	RXH_L3_PROTO	(1 << 3)
@@ -577,5 +653,6 @@ struct ethtool_ops {
 #define	RXH_L4_B_2_3	(1 << 7) /* dst port in case of TCP/UDP/SCTP */
 #define	RXH_DISCARD	(1 << 31)
 
+#define	RX_CLS_FLOW_DISC	0xffffffffffffffffULL
 
 #endif /* _LINUX_ETHTOOL_H */
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 947710a36ced..244ca56dffac 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -209,34 +209,62 @@ static int ethtool_get_drvinfo(struct net_device *dev, void __user *useraddr)
 	return 0;
 }
 
-static int ethtool_set_rxhash(struct net_device *dev, void __user *useraddr)
+static int ethtool_set_rxnfc(struct net_device *dev, void __user *useraddr)
 {
 	struct ethtool_rxnfc cmd;
 
-	if (!dev->ethtool_ops->set_rxhash)
+	if (!dev->ethtool_ops->set_rxnfc)
 		return -EOPNOTSUPP;
 
 	if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
 		return -EFAULT;
 
-	return dev->ethtool_ops->set_rxhash(dev, &cmd);
+	return dev->ethtool_ops->set_rxnfc(dev, &cmd);
 }
 
-static int ethtool_get_rxhash(struct net_device *dev, void __user *useraddr)
+static int ethtool_get_rxnfc(struct net_device *dev, void __user *useraddr)
 {
 	struct ethtool_rxnfc info;
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+	int ret;
+	void *rule_buf = NULL;
 
-	if (!dev->ethtool_ops->get_rxhash)
+	if (!ops->get_rxnfc)
 		return -EOPNOTSUPP;
 
 	if (copy_from_user(&info, useraddr, sizeof(info)))
 		return -EFAULT;
 
-	dev->ethtool_ops->get_rxhash(dev, &info);
+	if (info.cmd == ETHTOOL_GRXCLSRLALL) {
+		if (info.rule_cnt > 0) {
+			rule_buf = kmalloc(info.rule_cnt * sizeof(u32),
+					   GFP_USER);
+			if (!rule_buf)
+				return -ENOMEM;
+		}
+	}
 
+	ret = ops->get_rxnfc(dev, &info, rule_buf);
+	if (ret < 0)
+		goto err_out;
+
+	ret = -EFAULT;
 	if (copy_to_user(useraddr, &info, sizeof(info)))
-		return -EFAULT;
-	return 0;
+		goto err_out;
+
+	if (rule_buf) {
+		useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
+		if (copy_to_user(useraddr, rule_buf,
+				 info.rule_cnt * sizeof(u32)))
+			goto err_out;
+	}
+	ret = 0;
+
+err_out:
+	if (rule_buf)
+		kfree(rule_buf);
+
+	return ret;
 }
 
 static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
@@ -901,6 +929,10 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 	case ETHTOOL_GFLAGS:
 	case ETHTOOL_GPFLAGS:
 	case ETHTOOL_GRXFH:
+	case ETHTOOL_GRXRINGS:
+	case ETHTOOL_GRXCLSRLCNT:
+	case ETHTOOL_GRXCLSRULE:
+	case ETHTOOL_GRXCLSRLALL:
 		break;
 	default:
 		if (!capable(CAP_NET_ADMIN))
@@ -1052,10 +1084,16 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 				       dev->ethtool_ops->set_priv_flags);
 		break;
 	case ETHTOOL_GRXFH:
-		rc = ethtool_get_rxhash(dev, useraddr);
+	case ETHTOOL_GRXRINGS:
+	case ETHTOOL_GRXCLSRLCNT:
+	case ETHTOOL_GRXCLSRULE:
+	case ETHTOOL_GRXCLSRLALL:
+		rc = ethtool_get_rxnfc(dev, useraddr);
 		break;
 	case ETHTOOL_SRXFH:
-		rc = ethtool_set_rxhash(dev, useraddr);
+	case ETHTOOL_SRXCLSRLDEL:
+	case ETHTOOL_SRXCLSRLINS:
+		rc = ethtool_set_rxnfc(dev, useraddr);
 		break;
 	case ETHTOOL_GGRO:
 		rc = ethtool_get_gro(dev, useraddr);
-- 
cgit v1.2.3


From be0c22a46cfb79ab2342bb28fde99afa94ef868e Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 18 Feb 2009 01:40:43 +0000
Subject: netlink: add NETLINK_BROADCAST_ERROR socket option

This patch adds NETLINK_BROADCAST_ERROR which is a netlink
socket option that the listener can set to make netlink_broadcast()
return errors in the delivery to the caller. This option is useful
if the caller of netlink_broadcast() do something with the result
of the message delivery, like in ctnetlink where it drops a network
packet if the event delivery failed, this is used to enable reliable
logging and state-synchronization. If this socket option is not set,
netlink_broadcast() only reports ESRCH errors and silently ignore
ENOBUFS errors, which is what most netlink_broadcast() callers
should do.

This socket option is based on a suggestion from Patrick McHardy.
Patrick McHardy can exchange this patch for a beer from me ;).

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netlink.h  |  1 +
 net/netlink/af_netlink.c | 25 +++++++++++++++++++++++--
 2 files changed, 24 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 51b09a1f46c3..1e6bf995435c 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -103,6 +103,7 @@ struct nlmsgerr
 #define NETLINK_ADD_MEMBERSHIP	1
 #define NETLINK_DROP_MEMBERSHIP	2
 #define NETLINK_PKTINFO		3
+#define NETLINK_BROADCAST_ERROR	4
 
 struct nl_pktinfo
 {
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 6ee69c27f806..ed587be1e1c2 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -85,6 +85,7 @@ struct netlink_sock {
 
 #define NETLINK_KERNEL_SOCKET	0x1
 #define NETLINK_RECV_PKTINFO	0x2
+#define NETLINK_BROADCAST_SEND_ERROR	0x4
 
 static inline struct netlink_sock *nlk_sk(struct sock *sk)
 {
@@ -995,12 +996,15 @@ static inline int do_one_broadcast(struct sock *sk,
 		netlink_overrun(sk);
 		/* Clone failed. Notify ALL listeners. */
 		p->failure = 1;
+		if (nlk->flags & NETLINK_BROADCAST_SEND_ERROR)
+			p->delivery_failure = 1;
 	} else if (sk_filter(sk, p->skb2)) {
 		kfree_skb(p->skb2);
 		p->skb2 = NULL;
 	} else if ((val = netlink_broadcast_deliver(sk, p->skb2)) < 0) {
 		netlink_overrun(sk);
-		p->delivery_failure = 1;
+		if (nlk->flags & NETLINK_BROADCAST_SEND_ERROR)
+			p->delivery_failure = 1;
 	} else {
 		p->congested |= val;
 		p->delivered = 1;
@@ -1048,7 +1052,7 @@ int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
 	if (info.skb2)
 		kfree_skb(info.skb2);
 
-	if (info.delivery_failure || info.failure)
+	if (info.delivery_failure)
 		return -ENOBUFS;
 
 	if (info.delivered) {
@@ -1163,6 +1167,13 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname,
 		err = 0;
 		break;
 	}
+	case NETLINK_BROADCAST_ERROR:
+		if (val)
+			nlk->flags |= NETLINK_BROADCAST_SEND_ERROR;
+		else
+			nlk->flags &= ~NETLINK_BROADCAST_SEND_ERROR;
+		err = 0;
+		break;
 	default:
 		err = -ENOPROTOOPT;
 	}
@@ -1195,6 +1206,16 @@ static int netlink_getsockopt(struct socket *sock, int level, int optname,
 			return -EFAULT;
 		err = 0;
 		break;
+	case NETLINK_BROADCAST_ERROR:
+		if (len < sizeof(int))
+			return -EINVAL;
+		len = sizeof(int);
+		val = nlk->flags & NETLINK_BROADCAST_SEND_ERROR ? 1 : 0;
+		if (put_user(len, optlen) ||
+		    put_user(val, optval))
+			return -EFAULT;
+		err = 0;
+		break;
 	default:
 		err = -ENOPROTOOPT;
 	}
-- 
cgit v1.2.3


From 784544739a25c30637397ace5489eeb6e15d7d49 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Fri, 20 Feb 2009 10:35:32 +0100
Subject: netfilter: iptables: lock free counters

The reader/writer lock in ip_tables is acquired in the critical path of
processing packets and is one of the reasons just loading iptables can cause
a 20% performance loss. The rwlock serves two functions:

1) it prevents changes to table state (xt_replace) while table is in use.
   This is now handled by doing rcu on the xt_table. When table is
   replaced, the new table(s) are put in and the old one table(s) are freed
   after RCU period.

2) it provides synchronization when accesing the counter values.
   This is now handled by swapping in new table_info entries for each cpu
   then summing the old values, and putting the result back onto one
   cpu.  On a busy system it may cause sampling to occur at different
   times on each cpu, but no packet/byte counts are lost in the process.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>

Sucessfully tested on my dual quad core machine too, but iptables only (no ipv6 here)
BTW, my new "tbench 8" result is 2450 MB/s, (it was 2150 MB/s not so long ago)

Acked-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/linux/netfilter/x_tables.h |   6 +-
 net/ipv4/netfilter/arp_tables.c    | 115 ++++++++++++++++++++++++++---------
 net/ipv4/netfilter/ip_tables.c     | 120 +++++++++++++++++++++++++++----------
 net/ipv6/netfilter/ip6_tables.c    | 119 +++++++++++++++++++++++++-----------
 net/netfilter/x_tables.c           |  26 ++++++--
 5 files changed, 284 insertions(+), 102 deletions(-)

(limited to 'include')

diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 9fac88fc0e72..e8e08d036752 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -353,7 +353,7 @@ struct xt_table
 	unsigned int valid_hooks;
 
 	/* Lock for the curtain */
-	rwlock_t lock;
+	struct mutex lock;
 
 	/* Man behind the curtain... */
 	struct xt_table_info *private;
@@ -385,7 +385,7 @@ struct xt_table_info
 
 	/* ipt_entry tables: one per CPU */
 	/* Note : this field MUST be the last one, see XT_TABLE_INFO_SZ */
-	char *entries[1];
+	void *entries[1];
 };
 
 #define XT_TABLE_INFO_SZ (offsetof(struct xt_table_info, entries) \
@@ -432,6 +432,8 @@ extern void xt_proto_fini(struct net *net, u_int8_t af);
 
 extern struct xt_table_info *xt_alloc_table_info(unsigned int size);
 extern void xt_free_table_info(struct xt_table_info *info);
+extern void xt_table_entry_swap_rcu(struct xt_table_info *old,
+				    struct xt_table_info *new);
 
 #ifdef CONFIG_COMPAT
 #include <net/compat.h>
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index b5db46342614..64a7c6ce0b98 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -261,9 +261,10 @@ unsigned int arpt_do_table(struct sk_buff *skb,
 	indev = in ? in->name : nulldevname;
 	outdev = out ? out->name : nulldevname;
 
-	read_lock_bh(&table->lock);
-	private = table->private;
-	table_base = (void *)private->entries[smp_processor_id()];
+	rcu_read_lock();
+	private = rcu_dereference(table->private);
+	table_base = rcu_dereference(private->entries[smp_processor_id()]);
+
 	e = get_entry(table_base, private->hook_entry[hook]);
 	back = get_entry(table_base, private->underflow[hook]);
 
@@ -335,7 +336,8 @@ unsigned int arpt_do_table(struct sk_buff *skb,
 			e = (void *)e + e->next_offset;
 		}
 	} while (!hotdrop);
-	read_unlock_bh(&table->lock);
+
+	rcu_read_unlock();
 
 	if (hotdrop)
 		return NF_DROP;
@@ -738,11 +740,65 @@ static void get_counters(const struct xt_table_info *t,
 	}
 }
 
-static inline struct xt_counters *alloc_counters(struct xt_table *table)
+
+/* We're lazy, and add to the first CPU; overflow works its fey magic
+ * and everything is OK. */
+static int
+add_counter_to_entry(struct arpt_entry *e,
+		     const struct xt_counters addme[],
+		     unsigned int *i)
+{
+	ADD_COUNTER(e->counters, addme[*i].bcnt, addme[*i].pcnt);
+
+	(*i)++;
+	return 0;
+}
+
+/* Take values from counters and add them back onto the current cpu */
+static void put_counters(struct xt_table_info *t,
+			 const struct xt_counters counters[])
+{
+	unsigned int i, cpu;
+
+	local_bh_disable();
+	cpu = smp_processor_id();
+	i = 0;
+	ARPT_ENTRY_ITERATE(t->entries[cpu],
+			  t->size,
+			  add_counter_to_entry,
+			  counters,
+			  &i);
+	local_bh_enable();
+}
+
+static inline int
+zero_entry_counter(struct arpt_entry *e, void *arg)
+{
+	e->counters.bcnt = 0;
+	e->counters.pcnt = 0;
+	return 0;
+}
+
+static void
+clone_counters(struct xt_table_info *newinfo, const struct xt_table_info *info)
+{
+	unsigned int cpu;
+	const void *loc_cpu_entry = info->entries[raw_smp_processor_id()];
+
+	memcpy(newinfo, info, offsetof(struct xt_table_info, entries));
+	for_each_possible_cpu(cpu) {
+		memcpy(newinfo->entries[cpu], loc_cpu_entry, info->size);
+		ARPT_ENTRY_ITERATE(newinfo->entries[cpu], newinfo->size,
+				  zero_entry_counter, NULL);
+	}
+}
+
+static struct xt_counters *alloc_counters(struct xt_table *table)
 {
 	unsigned int countersize;
 	struct xt_counters *counters;
-	const struct xt_table_info *private = table->private;
+	struct xt_table_info *private = table->private;
+	struct xt_table_info *info;
 
 	/* We need atomic snapshot of counters: rest doesn't change
 	 * (other than comefrom, which userspace doesn't care
@@ -752,14 +808,30 @@ static inline struct xt_counters *alloc_counters(struct xt_table *table)
 	counters = vmalloc_node(countersize, numa_node_id());
 
 	if (counters == NULL)
-		return ERR_PTR(-ENOMEM);
+		goto nomem;
+
+	info = xt_alloc_table_info(private->size);
+	if (!info)
+		goto free_counters;
 
-	/* First, sum counters... */
-	write_lock_bh(&table->lock);
-	get_counters(private, counters);
-	write_unlock_bh(&table->lock);
+	clone_counters(info, private);
+
+	mutex_lock(&table->lock);
+	xt_table_entry_swap_rcu(private, info);
+	synchronize_net();	/* Wait until smoke has cleared */
+
+	get_counters(info, counters);
+	put_counters(private, counters);
+	mutex_unlock(&table->lock);
+
+	xt_free_table_info(info);
 
 	return counters;
+
+ free_counters:
+	vfree(counters);
+ nomem:
+	return ERR_PTR(-ENOMEM);
 }
 
 static int copy_entries_to_user(unsigned int total_size,
@@ -1099,20 +1171,6 @@ static int do_replace(struct net *net, void __user *user, unsigned int len)
 	return ret;
 }
 
-/* We're lazy, and add to the first CPU; overflow works its fey magic
- * and everything is OK.
- */
-static inline int add_counter_to_entry(struct arpt_entry *e,
-				       const struct xt_counters addme[],
-				       unsigned int *i)
-{
-
-	ADD_COUNTER(e->counters, addme[*i].bcnt, addme[*i].pcnt);
-
-	(*i)++;
-	return 0;
-}
-
 static int do_add_counters(struct net *net, void __user *user, unsigned int len,
 			   int compat)
 {
@@ -1172,13 +1230,14 @@ static int do_add_counters(struct net *net, void __user *user, unsigned int len,
 		goto free;
 	}
 
-	write_lock_bh(&t->lock);
+	mutex_lock(&t->lock);
 	private = t->private;
 	if (private->number != num_counters) {
 		ret = -EINVAL;
 		goto unlock_up_free;
 	}
 
+	preempt_disable();
 	i = 0;
 	/* Choose the copy that is on our node */
 	loc_cpu_entry = private->entries[smp_processor_id()];
@@ -1187,8 +1246,10 @@ static int do_add_counters(struct net *net, void __user *user, unsigned int len,
 			   add_counter_to_entry,
 			   paddc,
 			   &i);
+	preempt_enable();
  unlock_up_free:
-	write_unlock_bh(&t->lock);
+	mutex_unlock(&t->lock);
+
 	xt_table_unlock(t);
 	module_put(t->me);
  free:
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index ef8b6ca068b2..08cde5bd70a5 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -347,10 +347,12 @@ ipt_do_table(struct sk_buff *skb,
 	mtpar.family  = tgpar.family = NFPROTO_IPV4;
 	tgpar.hooknum = hook;
 
-	read_lock_bh(&table->lock);
 	IP_NF_ASSERT(table->valid_hooks & (1 << hook));
-	private = table->private;
-	table_base = (void *)private->entries[smp_processor_id()];
+
+	rcu_read_lock();
+	private = rcu_dereference(table->private);
+	table_base = rcu_dereference(private->entries[smp_processor_id()]);
+
 	e = get_entry(table_base, private->hook_entry[hook]);
 
 	/* For return from builtin chain */
@@ -445,7 +447,7 @@ ipt_do_table(struct sk_buff *skb,
 		}
 	} while (!hotdrop);
 
-	read_unlock_bh(&table->lock);
+	rcu_read_unlock();
 
 #ifdef DEBUG_ALLOW_ALL
 	return NF_ACCEPT;
@@ -924,13 +926,68 @@ get_counters(const struct xt_table_info *t,
 				  counters,
 				  &i);
 	}
+
+}
+
+/* We're lazy, and add to the first CPU; overflow works its fey magic
+ * and everything is OK. */
+static int
+add_counter_to_entry(struct ipt_entry *e,
+		     const struct xt_counters addme[],
+		     unsigned int *i)
+{
+	ADD_COUNTER(e->counters, addme[*i].bcnt, addme[*i].pcnt);
+
+	(*i)++;
+	return 0;
+}
+
+/* Take values from counters and add them back onto the current cpu */
+static void put_counters(struct xt_table_info *t,
+			 const struct xt_counters counters[])
+{
+	unsigned int i, cpu;
+
+	local_bh_disable();
+	cpu = smp_processor_id();
+	i = 0;
+	IPT_ENTRY_ITERATE(t->entries[cpu],
+			  t->size,
+			  add_counter_to_entry,
+			  counters,
+			  &i);
+	local_bh_enable();
+}
+
+
+static inline int
+zero_entry_counter(struct ipt_entry *e, void *arg)
+{
+	e->counters.bcnt = 0;
+	e->counters.pcnt = 0;
+	return 0;
+}
+
+static void
+clone_counters(struct xt_table_info *newinfo, const struct xt_table_info *info)
+{
+	unsigned int cpu;
+	const void *loc_cpu_entry = info->entries[raw_smp_processor_id()];
+
+	memcpy(newinfo, info, offsetof(struct xt_table_info, entries));
+	for_each_possible_cpu(cpu) {
+		memcpy(newinfo->entries[cpu], loc_cpu_entry, info->size);
+		IPT_ENTRY_ITERATE(newinfo->entries[cpu], newinfo->size,
+				  zero_entry_counter, NULL);
+	}
 }
 
 static struct xt_counters * alloc_counters(struct xt_table *table)
 {
 	unsigned int countersize;
 	struct xt_counters *counters;
-	const struct xt_table_info *private = table->private;
+	struct xt_table_info *private = table->private;
+	struct xt_table_info *info;
 
 	/* We need atomic snapshot of counters: rest doesn't change
 	   (other than comefrom, which userspace doesn't care
@@ -939,14 +996,30 @@ static struct xt_counters * alloc_counters(struct xt_table *table)
 	counters = vmalloc_node(countersize, numa_node_id());
 
 	if (counters == NULL)
-		return ERR_PTR(-ENOMEM);
+		goto nomem;
 
-	/* First, sum counters... */
-	write_lock_bh(&table->lock);
-	get_counters(private, counters);
-	write_unlock_bh(&table->lock);
+	info = xt_alloc_table_info(private->size);
+	if (!info)
+		goto free_counters;
+
+	clone_counters(info, private);
+
+	mutex_lock(&table->lock);
+	xt_table_entry_swap_rcu(private, info);
+	synchronize_net();	/* Wait until smoke has cleared */
+
+	get_counters(info, counters);
+	put_counters(private, counters);
+	mutex_unlock(&table->lock);
+
+	xt_free_table_info(info);
 
 	return counters;
+
+ free_counters:
+	vfree(counters);
+ nomem:
+	return ERR_PTR(-ENOMEM);
 }
 
 static int
@@ -1312,27 +1385,6 @@ do_replace(struct net *net, void __user *user, unsigned int len)
 	return ret;
 }
 
-/* We're lazy, and add to the first CPU; overflow works its fey magic
- * and everything is OK. */
-static int
-add_counter_to_entry(struct ipt_entry *e,
-		     const struct xt_counters addme[],
-		     unsigned int *i)
-{
-#if 0
-	duprintf("add_counter: Entry %u %lu/%lu + %lu/%lu\n",
-		 *i,
-		 (long unsigned int)e->counters.pcnt,
-		 (long unsigned int)e->counters.bcnt,
-		 (long unsigned int)addme[*i].pcnt,
-		 (long unsigned int)addme[*i].bcnt);
-#endif
-
-	ADD_COUNTER(e->counters, addme[*i].bcnt, addme[*i].pcnt);
-
-	(*i)++;
-	return 0;
-}
 
 static int
 do_add_counters(struct net *net, void __user *user, unsigned int len, int compat)
@@ -1393,13 +1445,14 @@ do_add_counters(struct net *net, void __user *user, unsigned int len, int compat
 		goto free;
 	}
 
-	write_lock_bh(&t->lock);
+	mutex_lock(&t->lock);
 	private = t->private;
 	if (private->number != num_counters) {
 		ret = -EINVAL;
 		goto unlock_up_free;
 	}
 
+	preempt_disable();
 	i = 0;
 	/* Choose the copy that is on our node */
 	loc_cpu_entry = private->entries[raw_smp_processor_id()];
@@ -1408,8 +1461,9 @@ do_add_counters(struct net *net, void __user *user, unsigned int len, int compat
 			  add_counter_to_entry,
 			  paddc,
 			  &i);
+	preempt_enable();
  unlock_up_free:
-	write_unlock_bh(&t->lock);
+	mutex_unlock(&t->lock);
 	xt_table_unlock(t);
 	module_put(t->me);
  free:
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index d64594b6c061..34af7bb8df5f 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -382,10 +382,12 @@ ip6t_do_table(struct sk_buff *skb,
 	mtpar.family  = tgpar.family = NFPROTO_IPV6;
 	tgpar.hooknum = hook;
 
-	read_lock_bh(&table->lock);
 	IP_NF_ASSERT(table->valid_hooks & (1 << hook));
-	private = table->private;
-	table_base = (void *)private->entries[smp_processor_id()];
+
+	rcu_read_lock();
+	private = rcu_dereference(table->private);
+	table_base = rcu_dereference(private->entries[smp_processor_id()]);
+
 	e = get_entry(table_base, private->hook_entry[hook]);
 
 	/* For return from builtin chain */
@@ -483,7 +485,7 @@ ip6t_do_table(struct sk_buff *skb,
 #ifdef CONFIG_NETFILTER_DEBUG
 	((struct ip6t_entry *)table_base)->comefrom = NETFILTER_LINK_POISON;
 #endif
-	read_unlock_bh(&table->lock);
+	rcu_read_unlock();
 
 #ifdef DEBUG_ALLOW_ALL
 	return NF_ACCEPT;
@@ -964,11 +966,64 @@ get_counters(const struct xt_table_info *t,
 	}
 }
 
+/* We're lazy, and add to the first CPU; overflow works its fey magic
+ * and everything is OK. */
+static int
+add_counter_to_entry(struct ip6t_entry *e,
+		     const struct xt_counters addme[],
+		     unsigned int *i)
+{
+	ADD_COUNTER(e->counters, addme[*i].bcnt, addme[*i].pcnt);
+
+	(*i)++;
+	return 0;
+}
+
+/* Take values from counters and add them back onto the current cpu */
+static void put_counters(struct xt_table_info *t,
+			 const struct xt_counters counters[])
+{
+	unsigned int i, cpu;
+
+	local_bh_disable();
+	cpu = smp_processor_id();
+	i = 0;
+	IP6T_ENTRY_ITERATE(t->entries[cpu],
+			   t->size,
+			   add_counter_to_entry,
+			   counters,
+			   &i);
+	local_bh_enable();
+}
+
+static inline int
+zero_entry_counter(struct ip6t_entry *e, void *arg)
+{
+	e->counters.bcnt = 0;
+	e->counters.pcnt = 0;
+	return 0;
+}
+
+static void
+clone_counters(struct xt_table_info *newinfo, const struct xt_table_info *info)
+{
+	unsigned int cpu;
+	const void *loc_cpu_entry = info->entries[raw_smp_processor_id()];
+
+	memcpy(newinfo, info, offsetof(struct xt_table_info, entries));
+	for_each_possible_cpu(cpu) {
+		memcpy(newinfo->entries[cpu], loc_cpu_entry, info->size);
+		IP6T_ENTRY_ITERATE(newinfo->entries[cpu], newinfo->size,
+				   zero_entry_counter, NULL);
+	}
+}
+
 static struct xt_counters *alloc_counters(struct xt_table *table)
 {
 	unsigned int countersize;
 	struct xt_counters *counters;
-	const struct xt_table_info *private = table->private;
+	struct xt_table_info *private = table->private;
+	struct xt_table_info *info;
 
 	/* We need atomic snapshot of counters: rest doesn't change
 	   (other than comefrom, which userspace doesn't care
@@ -977,14 +1032,28 @@ static struct xt_counters *alloc_counters(struct xt_table *table)
 	counters = vmalloc_node(countersize, numa_node_id());
 
 	if (counters == NULL)
-		return ERR_PTR(-ENOMEM);
+		goto nomem;
+
+	info = xt_alloc_table_info(private->size);
+	if (!info)
+		goto free_counters;
+
+	clone_counters(info, private);
+
+	mutex_lock(&table->lock);
+	xt_table_entry_swap_rcu(private, info);
+	synchronize_net();	/* Wait until smoke has cleared */
+
+	get_counters(info, counters);
+	put_counters(private, counters);
+	mutex_unlock(&table->lock);
 
-	/* First, sum counters... */
-	write_lock_bh(&table->lock);
-	get_counters(private, counters);
-	write_unlock_bh(&table->lock);
+	xt_free_table_info(info);
 
-	return counters;
+ free_counters:
+	vfree(counters);
+ nomem:
+	return ERR_PTR(-ENOMEM);
 }
 
 static int
@@ -1351,28 +1420,6 @@ do_replace(struct net *net, void __user *user, unsigned int len)
 	return ret;
 }
 
-/* We're lazy, and add to the first CPU; overflow works its fey magic
- * and everything is OK. */
-static inline int
-add_counter_to_entry(struct ip6t_entry *e,
-		     const struct xt_counters addme[],
-		     unsigned int *i)
-{
-#if 0
-	duprintf("add_counter: Entry %u %lu/%lu + %lu/%lu\n",
-		 *i,
-		 (long unsigned int)e->counters.pcnt,
-		 (long unsigned int)e->counters.bcnt,
-		 (long unsigned int)addme[*i].pcnt,
-		 (long unsigned int)addme[*i].bcnt);
-#endif
-
-	ADD_COUNTER(e->counters, addme[*i].bcnt, addme[*i].pcnt);
-
-	(*i)++;
-	return 0;
-}
-
 static int
 do_add_counters(struct net *net, void __user *user, unsigned int len,
 		int compat)
@@ -1433,13 +1480,14 @@ do_add_counters(struct net *net, void __user *user, unsigned int len,
 		goto free;
 	}
 
-	write_lock_bh(&t->lock);
+	mutex_lock(&t->lock);
 	private = t->private;
 	if (private->number != num_counters) {
 		ret = -EINVAL;
 		goto unlock_up_free;
 	}
 
+	preempt_disable();
 	i = 0;
 	/* Choose the copy that is on our node */
 	loc_cpu_entry = private->entries[raw_smp_processor_id()];
@@ -1448,8 +1496,9 @@ do_add_counters(struct net *net, void __user *user, unsigned int len,
 			  add_counter_to_entry,
 			  paddc,
 			  &i);
+	preempt_enable();
  unlock_up_free:
-	write_unlock_bh(&t->lock);
+	mutex_unlock(&t->lock);
 	xt_table_unlock(t);
 	module_put(t->me);
  free:
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index bfbf521f6ea5..bfcac92d5563 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -625,6 +625,20 @@ void xt_free_table_info(struct xt_table_info *info)
 }
 EXPORT_SYMBOL(xt_free_table_info);
 
+void xt_table_entry_swap_rcu(struct xt_table_info *oldinfo,
+			     struct xt_table_info *newinfo)
+{
+	unsigned int cpu;
+
+	for_each_possible_cpu(cpu) {
+		void *p = oldinfo->entries[cpu];
+		rcu_assign_pointer(oldinfo->entries[cpu], newinfo->entries[cpu]);
+		newinfo->entries[cpu] = p;
+	}
+
+}
+EXPORT_SYMBOL_GPL(xt_table_entry_swap_rcu);
+
 /* Find table by name, grabs mutex & ref.  Returns ERR_PTR() on error. */
 struct xt_table *xt_find_table_lock(struct net *net, u_int8_t af,
 				    const char *name)
@@ -671,21 +685,22 @@ xt_replace_table(struct xt_table *table,
 	struct xt_table_info *oldinfo, *private;
 
 	/* Do the substitution. */
-	write_lock_bh(&table->lock);
+	mutex_lock(&table->lock);
 	private = table->private;
 	/* Check inside lock: is the old number correct? */
 	if (num_counters != private->number) {
 		duprintf("num_counters != table->private->number (%u/%u)\n",
 			 num_counters, private->number);
-		write_unlock_bh(&table->lock);
+		mutex_unlock(&table->lock);
 		*error = -EAGAIN;
 		return NULL;
 	}
 	oldinfo = private;
-	table->private = newinfo;
+	rcu_assign_pointer(table->private, newinfo);
 	newinfo->initial_entries = oldinfo->initial_entries;
-	write_unlock_bh(&table->lock);
+	mutex_unlock(&table->lock);
 
+	synchronize_net();
 	return oldinfo;
 }
 EXPORT_SYMBOL_GPL(xt_replace_table);
@@ -719,7 +734,8 @@ struct xt_table *xt_register_table(struct net *net, struct xt_table *table,
 
 	/* Simplifies replace_table code. */
 	table->private = bootstrap;
-	rwlock_init(&table->lock);
+	mutex_init(&table->lock);
+
 	if (!xt_replace_table(table, 0, newinfo, &ret))
 		goto unlock;
 
-- 
cgit v1.2.3


From e478075c6f07a383c378fb400edc1a7407a941b0 Mon Sep 17 00:00:00 2001
From: Hagen Paul Pfeifer <hagen@jauu.net>
Date: Fri, 20 Feb 2009 10:47:09 +0100
Subject: netfilter: nf_conntrack: table max size should hold at least table
 size

Table size is defined as unsigned, wheres the table maximum size is
defined as a signed integer. The calculation of max is 8 or 4,
multiplied the table size. Therefore the max value is aligned to
unsigned.

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_conntrack.h | 2 +-
 net/netfilter/nf_conntrack_core.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 2e0c53641cbe..4dfb793c3f15 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -287,7 +287,7 @@ static inline int nf_ct_is_untracked(const struct sk_buff *skb)
 
 extern int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp);
 extern unsigned int nf_conntrack_htable_size;
-extern int nf_conntrack_max;
+extern unsigned int nf_conntrack_max;
 
 #define NF_CT_STAT_INC(net, count)	\
 	(per_cpu_ptr((net)->ct.stat, raw_smp_processor_id())->count++)
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 90ce9ddb9451..f3aa4e65b15e 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -54,7 +54,7 @@ EXPORT_SYMBOL_GPL(nf_conntrack_lock);
 unsigned int nf_conntrack_htable_size __read_mostly;
 EXPORT_SYMBOL_GPL(nf_conntrack_htable_size);
 
-int nf_conntrack_max __read_mostly;
+unsigned int nf_conntrack_max __read_mostly;
 EXPORT_SYMBOL_GPL(nf_conntrack_max);
 
 struct nf_conn nf_conntrack_untracked __read_mostly;
-- 
cgit v1.2.3


From 268cb38e1802db560c73167e643f14a3dcb4b07c Mon Sep 17 00:00:00 2001
From: Adam Nielsen <a.nielsen@shikadi.net>
Date: Fri, 20 Feb 2009 10:55:14 +0100
Subject: netfilter: x_tables: add LED trigger target

Kernel module providing implementation of LED netfilter target.  Each
instance of the target appears as a led-trigger device, which can be
associated with one or more LEDs in /sys/class/leds/

Signed-off-by: Adam Nielsen <a.nielsen@shikadi.net>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 drivers/leds/Kconfig             |   3 +
 include/linux/netfilter/Kbuild   |   1 +
 include/linux/netfilter/xt_LED.h |  13 ++++
 net/netfilter/Kconfig            |  24 ++++++
 net/netfilter/Makefile           |   1 +
 net/netfilter/xt_LED.c           | 161 +++++++++++++++++++++++++++++++++++++++
 6 files changed, 203 insertions(+)
 create mode 100644 include/linux/netfilter/xt_LED.h
 create mode 100644 net/netfilter/xt_LED.c

(limited to 'include')

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 742713611bc5..556aeca0d860 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -223,4 +223,7 @@ config LEDS_TRIGGER_DEFAULT_ON
 	  This allows LEDs to be initialised in the ON state.
 	  If unsure, say Y.
 
+comment "iptables trigger is under Netfilter config (LED target)"
+	depends on LEDS_TRIGGERS
+
 endif # NEW_LEDS
diff --git a/include/linux/netfilter/Kbuild b/include/linux/netfilter/Kbuild
index 5a8af875bce2..deeaee5c83f2 100644
--- a/include/linux/netfilter/Kbuild
+++ b/include/linux/netfilter/Kbuild
@@ -7,6 +7,7 @@ header-y += xt_CLASSIFY.h
 header-y += xt_CONNMARK.h
 header-y += xt_CONNSECMARK.h
 header-y += xt_DSCP.h
+header-y += xt_LED.h
 header-y += xt_MARK.h
 header-y += xt_NFLOG.h
 header-y += xt_NFQUEUE.h
diff --git a/include/linux/netfilter/xt_LED.h b/include/linux/netfilter/xt_LED.h
new file mode 100644
index 000000000000..4c91a0d770d0
--- /dev/null
+++ b/include/linux/netfilter/xt_LED.h
@@ -0,0 +1,13 @@
+#ifndef _XT_LED_H
+#define _XT_LED_H
+
+struct xt_led_info {
+	char id[27];        /* Unique ID for this trigger in the LED class */
+	__u8 always_blink;  /* Blink even if the LED is already on */
+	__u32 delay;        /* Delay until LED is switched off after trigger */
+
+	/* Kernel data used in the module */
+	void *internal_data __attribute__((aligned(8)));
+};
+
+#endif /* _XT_LED_H */
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 0eb98b4fbf44..cdbaaff6d0d6 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -372,6 +372,30 @@ config NETFILTER_XT_TARGET_HL
 	since you can easily create immortal packets that loop
 	forever on the network.
 
+config NETFILTER_XT_TARGET_LED
+	tristate '"LED" target support'
+	depends on LEDS_CLASS
+	depends on NETFILTER_ADVANCED
+	help
+	  This option adds a `LED' target, which allows you to blink LEDs in
+	  response to particular packets passing through your machine.
+
+	  This can be used to turn a spare LED into a network activity LED,
+	  which only flashes in response to FTP transfers, for example.  Or
+	  you could have an LED which lights up for a minute or two every time
+	  somebody connects to your machine via SSH.
+
+	  You will need support for the "led" class to make this work.
+
+	  To create an LED trigger for incoming SSH traffic:
+	    iptables -A INPUT -p tcp --dport 22 -j LED --led-trigger-id ssh --led-delay 1000
+
+	  Then attach the new trigger to an LED on your system:
+	    echo netfilter-ssh > /sys/class/leds/<ledname>/trigger
+
+	  For more information on the LEDs available on your system, see
+	  Documentation/leds-class.txt
+
 config NETFILTER_XT_TARGET_MARK
 	tristate '"MARK" target support'
 	default m if NETFILTER_ADVANCED=n
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index da73ed25701c..7a9b8397573a 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CONNMARK) += xt_CONNMARK.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSECMARK) += xt_CONNSECMARK.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_HL) += xt_HL.o
+obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_MARK) += xt_MARK.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_NFLOG) += xt_NFLOG.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_NFQUEUE) += xt_NFQUEUE.o
diff --git a/net/netfilter/xt_LED.c b/net/netfilter/xt_LED.c
new file mode 100644
index 000000000000..8ff7843bb921
--- /dev/null
+++ b/net/netfilter/xt_LED.c
@@ -0,0 +1,161 @@
+/*
+ * xt_LED.c - netfilter target to make LEDs blink upon packet matches
+ *
+ * Copyright (C) 2008 Adam Nielsen <a.nielsen@shikadi.net>
+ *
+ * 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.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/leds.h>
+#include <linux/mutex.h>
+
+#include <linux/netfilter/xt_LED.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Adam Nielsen <a.nielsen@shikadi.net>");
+MODULE_DESCRIPTION("Xtables: trigger LED devices on packet match");
+
+/*
+ * This is declared in here (the kernel module) only, to avoid having these
+ * dependencies in userspace code.  This is what xt_led_info.internal_data
+ * points to.
+ */
+struct xt_led_info_internal {
+	struct led_trigger netfilter_led_trigger;
+	struct timer_list timer;
+};
+
+static unsigned int
+led_tg(struct sk_buff *skb, const struct xt_target_param *par)
+{
+	const struct xt_led_info *ledinfo = par->targinfo;
+	struct xt_led_info_internal *ledinternal = ledinfo->internal_data;
+
+	/*
+	 * If "always blink" is enabled, and there's still some time until the
+	 * LED will switch off, briefly switch it off now.
+	 */
+	if ((ledinfo->delay > 0) && ledinfo->always_blink &&
+	    timer_pending(&ledinternal->timer))
+		led_trigger_event(&ledinternal->netfilter_led_trigger,LED_OFF);
+
+	led_trigger_event(&ledinternal->netfilter_led_trigger, LED_FULL);
+
+	/* If there's a positive delay, start/update the timer */
+	if (ledinfo->delay > 0) {
+		mod_timer(&ledinternal->timer,
+			  jiffies + msecs_to_jiffies(ledinfo->delay));
+
+	/* Otherwise if there was no delay given, blink as fast as possible */
+	} else if (ledinfo->delay == 0) {
+		led_trigger_event(&ledinternal->netfilter_led_trigger, LED_OFF);
+	}
+
+	/* else the delay is negative, which means switch on and stay on */
+
+	return XT_CONTINUE;
+}
+
+static void led_timeout_callback(unsigned long data)
+{
+	struct xt_led_info *ledinfo = (struct xt_led_info *)data;
+	struct xt_led_info_internal *ledinternal = ledinfo->internal_data;
+
+	led_trigger_event(&ledinternal->netfilter_led_trigger, LED_OFF);
+}
+
+static bool led_tg_check(const struct xt_tgchk_param *par)
+{
+	struct xt_led_info *ledinfo = par->targinfo;
+	struct xt_led_info_internal *ledinternal;
+	int err;
+
+	if (ledinfo->id[0] == '\0') {
+		printk(KERN_ERR KBUILD_MODNAME ": No 'id' parameter given.\n");
+		return false;
+	}
+
+	ledinternal = kzalloc(sizeof(struct xt_led_info_internal), GFP_KERNEL);
+	if (!ledinternal) {
+		printk(KERN_CRIT KBUILD_MODNAME ": out of memory\n");
+		return false;
+	}
+
+	ledinternal->netfilter_led_trigger.name = ledinfo->id;
+
+	err = led_trigger_register(&ledinternal->netfilter_led_trigger);
+	if (err) {
+		printk(KERN_CRIT KBUILD_MODNAME
+			": led_trigger_register() failed\n");
+		if (err == -EEXIST)
+			printk(KERN_ERR KBUILD_MODNAME
+				": Trigger name is already in use.\n");
+		goto exit_alloc;
+	}
+
+	/* See if we need to set up a timer */
+	if (ledinfo->delay > 0)
+		setup_timer(&ledinternal->timer, led_timeout_callback,
+			    (unsigned long)ledinfo);
+
+	ledinfo->internal_data = ledinternal;
+
+	return true;
+
+exit_alloc:
+	kfree(ledinternal);
+
+	return false;
+}
+
+static void led_tg_destroy(const struct xt_tgdtor_param *par)
+{
+	const struct xt_led_info *ledinfo = par->targinfo;
+	struct xt_led_info_internal *ledinternal = ledinfo->internal_data;
+
+	if (ledinfo->delay > 0)
+		del_timer_sync(&ledinternal->timer);
+
+	led_trigger_unregister(&ledinternal->netfilter_led_trigger);
+	kfree(ledinternal);
+}
+
+static struct xt_target led_tg_reg __read_mostly = {
+	.name		= "LED",
+	.revision	= 0,
+	.family		= NFPROTO_UNSPEC,
+	.target		= led_tg,
+	.targetsize	= XT_ALIGN(sizeof(struct xt_led_info)),
+	.checkentry	= led_tg_check,
+	.destroy	= led_tg_destroy,
+	.me		= THIS_MODULE,
+};
+
+static int __init led_tg_init(void)
+{
+	return xt_register_target(&led_tg_reg);
+}
+
+static void __exit led_tg_exit(void)
+{
+	xt_unregister_target(&led_tg_reg);
+}
+
+module_init(led_tg_init);
+module_exit(led_tg_exit);
-- 
cgit v1.2.3


From ffadd4d0feb5376c82dc3a4104731b7ce2794edc Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux-foundation.org>
Date: Tue, 17 Feb 2009 12:05:07 -0500
Subject: SLUB: Introduce and use SLUB_MAX_SIZE and SLUB_PAGE_SHIFT constants

As a preparational patch to bump up page allocator pass-through threshold,
introduce two new constants SLUB_MAX_SIZE and SLUB_PAGE_SHIFT and convert
mm/slub.c to use them.

Reported-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Tested-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
---
 include/linux/slub_def.h | 19 ++++++++++++++++---
 mm/slub.c                | 16 ++++++++--------
 2 files changed, 24 insertions(+), 11 deletions(-)

(limited to 'include')

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 2f5c16b1aacd..986e09dcfd8f 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -120,11 +120,24 @@ struct kmem_cache {
 
 #define KMALLOC_SHIFT_LOW ilog2(KMALLOC_MIN_SIZE)
 
+/*
+ * Maximum kmalloc object size handled by SLUB. Larger object allocations
+ * are passed through to the page allocator. The page allocator "fastpath"
+ * is relatively slow so we need this value sufficiently high so that
+ * performance critical objects are allocated through the SLUB fastpath.
+ *
+ * This should be dropped to PAGE_SIZE / 2 once the page allocator
+ * "fastpath" becomes competitive with the slab allocator fastpaths.
+ */
+#define SLUB_MAX_SIZE (PAGE_SIZE)
+
+#define SLUB_PAGE_SHIFT (PAGE_SHIFT + 1)
+
 /*
  * We keep the general caches in an array of slab caches that are used for
  * 2^x bytes of allocations.
  */
-extern struct kmem_cache kmalloc_caches[PAGE_SHIFT + 1];
+extern struct kmem_cache kmalloc_caches[SLUB_PAGE_SHIFT];
 
 /*
  * Sorry that the following has to be that ugly but some versions of GCC
@@ -212,7 +225,7 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
 static __always_inline void *kmalloc(size_t size, gfp_t flags)
 {
 	if (__builtin_constant_p(size)) {
-		if (size > PAGE_SIZE)
+		if (size > SLUB_MAX_SIZE)
 			return kmalloc_large(size, flags);
 
 		if (!(flags & SLUB_DMA)) {
@@ -234,7 +247,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 {
 	if (__builtin_constant_p(size) &&
-		size <= PAGE_SIZE && !(flags & SLUB_DMA)) {
+		size <= SLUB_MAX_SIZE && !(flags & SLUB_DMA)) {
 			struct kmem_cache *s = kmalloc_slab(size);
 
 		if (!s)
diff --git a/mm/slub.c b/mm/slub.c
index bdc9abb08a23..5a5e7f5bf799 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2475,7 +2475,7 @@ EXPORT_SYMBOL(kmem_cache_destroy);
  *		Kmalloc subsystem
  *******************************************************************/
 
-struct kmem_cache kmalloc_caches[PAGE_SHIFT + 1] __cacheline_aligned;
+struct kmem_cache kmalloc_caches[SLUB_PAGE_SHIFT] __cacheline_aligned;
 EXPORT_SYMBOL(kmalloc_caches);
 
 static int __init setup_slub_min_order(char *str)
@@ -2537,7 +2537,7 @@ panic:
 }
 
 #ifdef CONFIG_ZONE_DMA
-static struct kmem_cache *kmalloc_caches_dma[PAGE_SHIFT + 1];
+static struct kmem_cache *kmalloc_caches_dma[SLUB_PAGE_SHIFT];
 
 static void sysfs_add_func(struct work_struct *w)
 {
@@ -2658,7 +2658,7 @@ void *__kmalloc(size_t size, gfp_t flags)
 {
 	struct kmem_cache *s;
 
-	if (unlikely(size > PAGE_SIZE))
+	if (unlikely(size > SLUB_MAX_SIZE))
 		return kmalloc_large(size, flags);
 
 	s = get_slab(size, flags);
@@ -2686,7 +2686,7 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
 {
 	struct kmem_cache *s;
 
-	if (unlikely(size > PAGE_SIZE))
+	if (unlikely(size > SLUB_MAX_SIZE))
 		return kmalloc_large_node(size, flags, node);
 
 	s = get_slab(size, flags);
@@ -2985,7 +2985,7 @@ void __init kmem_cache_init(void)
 		caches++;
 	}
 
-	for (i = KMALLOC_SHIFT_LOW; i <= PAGE_SHIFT; i++) {
+	for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++) {
 		create_kmalloc_cache(&kmalloc_caches[i],
 			"kmalloc", 1 << i, GFP_KERNEL);
 		caches++;
@@ -3022,7 +3022,7 @@ void __init kmem_cache_init(void)
 	slab_state = UP;
 
 	/* Provide the correct kmalloc names now that the caches are up */
-	for (i = KMALLOC_SHIFT_LOW; i <= PAGE_SHIFT; i++)
+	for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++)
 		kmalloc_caches[i]. name =
 			kasprintf(GFP_KERNEL, "kmalloc-%d", 1 << i);
 
@@ -3222,7 +3222,7 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
 {
 	struct kmem_cache *s;
 
-	if (unlikely(size > PAGE_SIZE))
+	if (unlikely(size > SLUB_MAX_SIZE))
 		return kmalloc_large(size, gfpflags);
 
 	s = get_slab(size, gfpflags);
@@ -3238,7 +3238,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
 {
 	struct kmem_cache *s;
 
-	if (unlikely(size > PAGE_SIZE))
+	if (unlikely(size > SLUB_MAX_SIZE))
 		return kmalloc_large_node(size, gfpflags, node);
 
 	s = get_slab(size, gfpflags);
-- 
cgit v1.2.3


From 51735a7ca67531267a27b57e5fe20f7815192f9c Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@cs.helsinki.fi>
Date: Fri, 20 Feb 2009 12:21:33 +0200
Subject: SLUB: Do not pass 8k objects through to the page allocator

Increase the maximum object size in SLUB so that 8k objects are not
passed through to the page allocator anymore. The network stack uses 8k
objects for performance critical operations.

The patch is motivated by a SLAB vs. SLUB regression in the netperf
benchmark. The problem is that the kfree(skb->head) call in
skb_release_data() that is subject to page allocator pass-through as the
size passed to __alloc_skb() is larger than 4 KB in this test.

As explained by Yanmin Zhang:

  I use 2.6.29-rc2 kernel to run netperf UDP-U-4k CPU_NUM client/server
  pair loopback testing on x86-64 machines. Comparing with SLUB, SLAB's
  result is about 2.3 times of SLUB's. After applying the reverting patch,
  the result difference between SLUB and SLAB becomes 1% which we might
  consider as fluctuation.

[ penberg@cs.helsinki.fi: fix oops in kmalloc() ]
Reported-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Tested-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
---
 include/linux/slub_def.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 986e09dcfd8f..e217a7a68ea7 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -129,9 +129,9 @@ struct kmem_cache {
  * This should be dropped to PAGE_SIZE / 2 once the page allocator
  * "fastpath" becomes competitive with the slab allocator fastpaths.
  */
-#define SLUB_MAX_SIZE (PAGE_SIZE)
+#define SLUB_MAX_SIZE (2 * PAGE_SIZE)
 
-#define SLUB_PAGE_SHIFT (PAGE_SHIFT + 1)
+#define SLUB_PAGE_SHIFT (PAGE_SHIFT + 2)
 
 /*
  * We keep the general caches in an array of slab caches that are used for
-- 
cgit v1.2.3


From 9c3c133b1ed6e6d01bfabb6de29bf3d0f0886354 Mon Sep 17 00:00:00 2001
From: Alexander Clouter <alex@digriz.org.uk>
Date: Sun, 22 Feb 2009 12:03:56 +0800
Subject: hwrng: timeriomem - New driver

Some hardware platforms, the TS-7800[1] is one for example, can
supply the kernel with an entropy source, albeit a slow one for
TS-7800 users, by just reading a particular IO address.  This
source must not be read above a certain rate otherwise the quality
suffers.

The driver is then hooked into by calling
platform_device_(register|add|del) passing a structure similar to:
------
static struct timeriomem_rng_data ts78xx_ts_rng_data = {
        .address        = (u32 *__iomem) TS_RNG,
        .period         = 1000000, /* one second */
};

static struct platform_device ts78xx_ts_rng_device = {
        .name           = "timeriomem_rng",
        .id             = -1,
        .dev            = {
                .platform_data  = &ts78xx_ts_rng_data,
        },
        .num_resources  = 0,
};
------

[1] http://www.embeddedarm.com/products/board-detail.php?product=TS-7800

Signed-off-by: Alexander Clouter <alex@digriz.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/char/hw_random/Kconfig          |  14 +++
 drivers/char/hw_random/Makefile         |   1 +
 drivers/char/hw_random/timeriomem-rng.c | 151 ++++++++++++++++++++++++++++++++
 include/linux/timeriomem-rng.h          |  21 +++++
 4 files changed, 187 insertions(+)
 create mode 100644 drivers/char/hw_random/timeriomem-rng.c
 create mode 100644 include/linux/timeriomem-rng.h

(limited to 'include')

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 8822eca58ffa..e86dd425a70f 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -20,6 +20,20 @@ config HW_RANDOM
 
 	  If unsure, say Y.
 
+config HW_RANDOM_TIMERIOMEM
+	tristate "Timer IOMEM HW Random Number Generator support"
+	depends on HW_RANDOM
+	---help---
+	  This driver provides kernel-side support for a generic Random
+	  Number Generator used by reading a 'dumb' iomem address that
+	  is to be read no faster than, for example, once a second;
+	  the default FPGA bitstream on the TS-7800 has such functionality.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called timeriomem-rng.
+
+	  If unsure, say Y.
+
 config HW_RANDOM_INTEL
 	tristate "Intel HW Random Number Generator support"
 	depends on HW_RANDOM && (X86 || IA64) && PCI
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index b6effb7522c2..e81d21a5f28f 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -4,6 +4,7 @@
 
 obj-$(CONFIG_HW_RANDOM) += rng-core.o
 rng-core-y := core.o
+obj-$(CONFIG_HW_RANDOM_TIMERIOMEM) += timeriomem-rng.o
 obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o
 obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o
 obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
new file mode 100644
index 000000000000..10ad41be5897
--- /dev/null
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -0,0 +1,151 @@
+/*
+ * drivers/char/hw_random/timeriomem-rng.c
+ *
+ * Copyright (C) 2009 Alexander Clouter <alex@digriz.org.uk>
+ *
+ * Derived from drivers/char/hw_random/omap-rng.c
+ *   Copyright 2005 (c) MontaVista Software, Inc.
+ *   Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * 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.
+ *
+ * Overview:
+ *   This driver is useful for platforms that have an IO range that provides
+ *   periodic random data from a single IO memory address.  All the platform
+ *   has to do is provide the address and 'wait time' that new data becomes
+ *   available.
+ *
+ * TODO: add support for reading sizes other than 32bits and masking
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/hw_random.h>
+#include <linux/io.h>
+#include <linux/timeriomem-rng.h>
+#include <linux/jiffies.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/completion.h>
+
+static struct timeriomem_rng_data *timeriomem_rng_data;
+
+static void timeriomem_rng_trigger(unsigned long);
+static DEFINE_TIMER(timeriomem_rng_timer, timeriomem_rng_trigger, 0, 0);
+
+/*
+ * have data return 1, however return 0 if we have nothing
+ */
+static int timeriomem_rng_data_present(struct hwrng *rng, int wait)
+{
+	if (rng->priv == 0)
+		return 1;
+
+	if (!wait || timeriomem_rng_data->present)
+		return timeriomem_rng_data->present;
+
+	wait_for_completion(&timeriomem_rng_data->completion);
+
+	return 1;
+}
+
+static int timeriomem_rng_data_read(struct hwrng *rng, u32 *data)
+{
+	unsigned long cur;
+	s32 delay;
+
+	*data = readl(timeriomem_rng_data->address);
+
+	if (rng->priv != 0) {
+		cur = jiffies;
+
+		delay = cur - timeriomem_rng_timer.expires;
+		delay = rng->priv - (delay % rng->priv);
+
+		timeriomem_rng_timer.expires = cur + delay;
+		timeriomem_rng_data->present = 0;
+
+		init_completion(&timeriomem_rng_data->completion);
+		add_timer(&timeriomem_rng_timer);
+	}
+
+	return 4;
+}
+
+static void timeriomem_rng_trigger(unsigned long dummy)
+{
+	timeriomem_rng_data->present = 1;
+	complete(&timeriomem_rng_data->completion);
+}
+
+static struct hwrng timeriomem_rng_ops = {
+	.name		= "timeriomem",
+	.data_present	= timeriomem_rng_data_present,
+	.data_read	= timeriomem_rng_data_read,
+	.priv		= 0,
+};
+
+static int __init timeriomem_rng_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	timeriomem_rng_data = pdev->dev.platform_data;
+
+	if (timeriomem_rng_data->period != 0
+		&& usecs_to_jiffies(timeriomem_rng_data->period) > 0) {
+		timeriomem_rng_timer.expires = jiffies;
+
+		timeriomem_rng_ops.priv = usecs_to_jiffies(
+						timeriomem_rng_data->period);
+	}
+	timeriomem_rng_data->present = 1;
+
+	ret = hwrng_register(&timeriomem_rng_ops);
+	if (ret) {
+		dev_err(&pdev->dev, "problem registering\n");
+		return ret;
+	}
+
+	dev_info(&pdev->dev, "32bits from 0x%p @ %dus\n",
+			timeriomem_rng_data->address,
+			timeriomem_rng_data->period);
+
+	return 0;
+}
+
+static int __devexit timeriomem_rng_remove(struct platform_device *pdev)
+{
+	del_timer_sync(&timeriomem_rng_timer);
+	hwrng_unregister(&timeriomem_rng_ops);
+
+	return 0;
+}
+
+static struct platform_driver timeriomem_rng_driver = {
+	.driver = {
+		.name		= "timeriomem_rng",
+		.owner		= THIS_MODULE,
+	},
+	.probe		= timeriomem_rng_probe,
+	.remove		= __devexit_p(timeriomem_rng_remove),
+};
+
+static int __init timeriomem_rng_init(void)
+{
+	return platform_driver_register(&timeriomem_rng_driver);
+}
+
+static void __exit timeriomem_rng_exit(void)
+{
+	platform_driver_unregister(&timeriomem_rng_driver);
+}
+
+module_init(timeriomem_rng_init);
+module_exit(timeriomem_rng_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexander Clouter <alex@digriz.org.uk>");
+MODULE_DESCRIPTION("Timer IOMEM H/W RNG driver");
diff --git a/include/linux/timeriomem-rng.h b/include/linux/timeriomem-rng.h
new file mode 100644
index 000000000000..dd253177f65f
--- /dev/null
+++ b/include/linux/timeriomem-rng.h
@@ -0,0 +1,21 @@
+/*
+ * linux/include/linux/timeriomem-rng.h
+ *
+ * Copyright (c) 2009 Alexander Clouter <alex@digriz.org.uk>
+ *
+ * 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.
+ */
+
+#include <linux/completion.h>
+
+struct timeriomem_rng_data {
+	struct completion	completion;
+	unsigned int		present:1;
+
+	u32 __iomem		*address;
+
+	/* measures in usecs */
+	unsigned int		period;
+};
-- 
cgit v1.2.3


From ce16c5337ab0d165f95c88aa857207efd7c01139 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@aristanetworks.com>
Date: Sun, 22 Feb 2009 00:11:09 -0800
Subject: netns: Remove net_alive

It turns out that net_alive is unnecessary, and the original problem
that led to it being added was simply that the icmp code thought
it was a network device and wound up being unable to handle packets
while there were still packets in the network namespace.

Now that icmp and tcp have been fixed to properly register themselves
this problem is no longer present and we have a stronger guarantee
that packets will not arrive in a network namespace then that provided
by net_alive in netif_receive_skb.  So remove net_alive allowing
packet reception run a little faster.

Additionally document the strong reason why network namespace cleanup
is safe so that if something happens again someone else will have
a chance of figuring it out.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/net_namespace.h | 27 +++++++++++++++++----------
 net/core/dev.c              |  6 ------
 net/core/net_namespace.c    |  3 ---
 3 files changed, 17 insertions(+), 19 deletions(-)

(limited to 'include')

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 6fc13d905c5f..ded434b032a4 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -109,11 +109,6 @@ extern struct list_head net_namespace_list;
 #ifdef CONFIG_NET_NS
 extern void __put_net(struct net *net);
 
-static inline int net_alive(struct net *net)
-{
-	return net && atomic_read(&net->count);
-}
-
 static inline struct net *get_net(struct net *net)
 {
 	atomic_inc(&net->count);
@@ -145,11 +140,6 @@ int net_eq(const struct net *net1, const struct net *net2)
 }
 #else
 
-static inline int net_alive(struct net *net)
-{
-	return 1;
-}
-
 static inline struct net *get_net(struct net *net)
 {
 	return net;
@@ -234,6 +224,23 @@ struct pernet_operations {
 	void (*exit)(struct net *net);
 };
 
+/*
+ * Use these carefully.  If you implement a network device and it
+ * needs per network namespace operations use device pernet operations,
+ * otherwise use pernet subsys operations.
+ *
+ * This is critically important.  Most of the network code cleanup
+ * runs with the assumption that dev_remove_pack has been called so no
+ * new packets will arrive during and after the cleanup functions have
+ * been called.  dev_remove_pack is not per namespace so instead the
+ * guarantee of no more packets arriving in a network namespace is
+ * provided by ensuring that all network devices and all sockets have
+ * left the network namespace before the cleanup methods are called.
+ *
+ * For the longest time the ipv4 icmp code was registered as a pernet
+ * device which caused kernel oops, and panics during network
+ * namespace cleanup.   So please don't get this wrong.
+ */
 extern int register_pernet_subsys(struct pernet_operations *);
 extern void unregister_pernet_subsys(struct pernet_operations *);
 extern int register_pernet_gen_subsys(int *id, struct pernet_operations *);
diff --git a/net/core/dev.c b/net/core/dev.c
index 88dc082b47d1..ac6ab12d3297 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2254,12 +2254,6 @@ int netif_receive_skb(struct sk_buff *skb)
 
 	rcu_read_lock();
 
-	/* Don't receive packets in an exiting network namespace */
-	if (!net_alive(dev_net(skb->dev))) {
-		kfree_skb(skb);
-		goto out;
-	}
-
 #ifdef CONFIG_NET_CLS_ACT
 	if (skb->tc_verd & TC_NCLS) {
 		skb->tc_verd = CLR_TC_NCLS(skb->tc_verd);
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 55151faaf90c..516c7b154327 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -140,9 +140,6 @@ static void cleanup_net(struct work_struct *work)
 	struct pernet_operations *ops;
 	struct net *net;
 
-	/* Be very certain incoming network packets will not find us */
-	rcu_barrier();
-
 	net = container_of(work, struct net, work);
 
 	mutex_lock(&net_mutex);
-- 
cgit v1.2.3


From ce71bfd1aa6d6a4069929eeceed254e13400ddf4 Mon Sep 17 00:00:00 2001
From: Andreas Mohr <andim2@users.sourceforge.net>
Date: Sun, 22 Feb 2009 20:33:41 +0100
Subject: ALSA: ALS4000, slight mixer improvements

- add 8kHz / 20 kHz low-pass filter switch control
- add ALS4000 Mono capture route control
- add annotations to specs pages
- improve ALS4000 PM saved regs selection (remove SB dummy register,
  add missing ones)
- add some missing ALS4000 register defines
- constify two variables

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/sb.h      |   4 +-
 sound/isa/sb/sb_mixer.c | 156 ++++++++++++++++++++++++++++++++++++------------
 2 files changed, 121 insertions(+), 39 deletions(-)

(limited to 'include')

diff --git a/include/sound/sb.h b/include/sound/sb.h
index 85f93c5fe1e4..4e62ee1e4115 100644
--- a/include/sound/sb.h
+++ b/include/sound/sb.h
@@ -249,6 +249,7 @@ struct snd_sb {
 #define SB_ALS4000_3D_AUTO_MUTE	0x52
 #define SB_ALS4000_ANALOG_BLOCK_CTRL 0x53
 #define SB_ALS4000_3D_DELAYLINE_PATTERN 0x54
+#define SB_ALS4000_CR3_CONFIGURATION	0xc3 /* bit 7 is Digital Loop Enable */
 #define SB_ALS4000_QSOUND	0xdb
 
 /* IRQ setting bitmap */
@@ -330,7 +331,8 @@ enum {
 	SB_MIX_DOUBLE,
 	SB_MIX_INPUT_SW,
 	SB_MIX_CAPTURE_PRO,
-	SB_MIX_CAPTURE_DT019X
+	SB_MIX_CAPTURE_DT019X,
+	SB_MIX_MONO_CAPTURE_ALS4K
 };
 
 #define SB_MIXVAL_DOUBLE(left_reg, right_reg, left_shift, right_shift, mask) \
diff --git a/sound/isa/sb/sb_mixer.c b/sound/isa/sb/sb_mixer.c
index 406a431af91e..475220bbcc96 100644
--- a/sound/isa/sb/sb_mixer.c
+++ b/sound/isa/sb/sb_mixer.c
@@ -182,7 +182,7 @@ static int snd_sbmixer_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_
 
 static int snd_dt019x_input_sw_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
-	static char *texts[5] = {
+	static const char *texts[5] = {
 		"CD", "Mic", "Line", "Synth", "Master"
 	};
 
@@ -268,13 +268,74 @@ static int snd_dt019x_input_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl
 	return change;
 }
 
+/*
+ * ALS4000 mono recording control switch
+ */
+
+static int snd_als4k_mono_capture_route_info(struct snd_kcontrol *kcontrol,
+					     struct snd_ctl_elem_info *uinfo)
+{
+	static const char *texts[3] = {
+		"L chan only", "R chan only", "L ch/2 + R ch/2"
+	};
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = 3;
+	if (uinfo->value.enumerated.item > 2)
+		uinfo->value.enumerated.item = 2;
+	strcpy(uinfo->value.enumerated.name,
+	       texts[uinfo->value.enumerated.item]);
+	return 0;
+}
+
+static int snd_als4k_mono_capture_route_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	unsigned char oval;
+
+	spin_lock_irqsave(&sb->mixer_lock, flags);
+	oval = snd_sbmixer_read(sb, SB_ALS4000_MONO_IO_CTRL);
+	spin_unlock_irqrestore(&sb->mixer_lock, flags);
+	oval >>= 6;
+	if (oval > 2)
+		oval = 2;
+
+	ucontrol->value.enumerated.item[0] = oval;
+	return 0;
+}
+
+static int snd_als4k_mono_capture_route_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int change;
+	unsigned char nval, oval;
+
+	if (ucontrol->value.enumerated.item[0] > 2)
+		return -EINVAL;
+	spin_lock_irqsave(&sb->mixer_lock, flags);
+	oval = snd_sbmixer_read(sb, SB_ALS4000_MONO_IO_CTRL);
+
+	nval = (oval & ~(3 << 6))
+	     | (ucontrol->value.enumerated.item[0] << 6);
+	change = nval != oval;
+	if (change)
+		snd_sbmixer_write(sb, SB_ALS4000_MONO_IO_CTRL, nval);
+	spin_unlock_irqrestore(&sb->mixer_lock, flags);
+	return change;
+}
+
 /*
  * SBPRO input multiplexer
  */
 
 static int snd_sb8mixer_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
-	static char *texts[3] = {
+	static const char *texts[3] = {
 		"Mic", "CD", "Line"
 	};
 
@@ -442,6 +503,12 @@ int snd_sbmixer_add_ctl(struct snd_sb *chip, const char *name, int index, int ty
 			.get = snd_dt019x_input_sw_get,
 			.put = snd_dt019x_input_sw_put,
 		},
+		[SB_MIX_MONO_CAPTURE_ALS4K] = {
+			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+			.info = snd_als4k_mono_capture_route_info,
+			.get = snd_als4k_mono_capture_route_get,
+			.put = snd_als4k_mono_capture_route_put,
+		},
 	};
 	struct snd_kcontrol *ctl;
 	int err;
@@ -636,6 +703,8 @@ static struct sbmix_elem snd_dt019x_ctl_capture_source =
 	};
 
 static struct sbmix_elem *snd_dt019x_controls[] = {
+	/* ALS4000 below has some parts which we might be lacking,
+	 * e.g. snd_als4000_ctl_mono_playback_switch - check it! */
 	&snd_dt019x_ctl_master_play_vol,
 	&snd_dt019x_ctl_pcm_play_vol,
 	&snd_dt019x_ctl_synth_play_vol,
@@ -666,18 +735,21 @@ static unsigned char snd_dt019x_init_values[][2] = {
 /*
  * ALS4000 specific mixer elements
  */
-/* FIXME: SB_ALS4000_MONO_IO_CTRL needs output select ctrl! */
 static struct sbmix_elem snd_als4000_ctl_master_mono_playback_switch =
 	SB_SINGLE("Master Mono Playback Switch", SB_ALS4000_MONO_IO_CTRL, 5, 1);
-static struct sbmix_elem snd_als4000_ctl_master_mono_capture_route =
-	SB_SINGLE("Master Mono Capture Route", SB_ALS4000_MONO_IO_CTRL, 6, 0x03);
-/* FIXME: mono playback switch also available on DT019X? */
+static struct sbmix_elem snd_als4k_ctl_master_mono_capture_route = {
+		.name = "Master Mono Capture Route",
+		.type = SB_MIX_MONO_CAPTURE_ALS4K
+	};
 static struct sbmix_elem snd_als4000_ctl_mono_playback_switch =
 	SB_SINGLE("Mono Playback Switch", SB_DT019X_OUTPUT_SW2, 0, 1);
 static struct sbmix_elem snd_als4000_ctl_mic_20db_boost =
 	SB_SINGLE("Mic Boost (+20dB)", SB_ALS4000_MIC_IN_GAIN, 0, 0x03);
-static struct sbmix_elem snd_als4000_ctl_mixer_loopback =
-	SB_SINGLE("Analog Loopback", SB_ALS4000_MIC_IN_GAIN, 7, 0x01);
+static struct sbmix_elem snd_als4000_ctl_mixer_analog_loopback =
+	SB_SINGLE("Analog Loopback Switch", SB_ALS4000_MIC_IN_GAIN, 7, 0x01);
+static struct sbmix_elem snd_als4000_ctl_mixer_digital_loopback =
+	SB_SINGLE("Digital Loopback Switch",
+		  SB_ALS4000_CR3_CONFIGURATION, 7, 0x01);
 /* FIXME: functionality of 3D controls might be swapped, I didn't find
  * a description of how to identify what is supposed to be what */
 static struct sbmix_elem snd_als4000_3d_control_switch =
@@ -694,6 +766,9 @@ static struct sbmix_elem snd_als4000_3d_control_delay =
 	SB_SINGLE("3D Control - Wide", SB_ALS4000_3D_TIME_DELAY, 0, 0x0f);
 static struct sbmix_elem snd_als4000_3d_control_poweroff_switch =
 	SB_SINGLE("3D PowerOff Switch", SB_ALS4000_3D_TIME_DELAY, 4, 0x01);
+static struct sbmix_elem snd_als4000_ctl_3db_freq_control_switch =
+	SB_SINGLE("Master Playback 8kHz / 20kHz LPF Switch",
+		  SB_ALS4000_FMDAC, 5, 0x01);
 #ifdef NOT_AVAILABLE
 static struct sbmix_elem snd_als4000_ctl_fmdac =
 	SB_SINGLE("FMDAC Switch (Option ?)", SB_ALS4000_FMDAC, 0, 0x01);
@@ -702,35 +777,37 @@ static struct sbmix_elem snd_als4000_ctl_qsound =
 #endif
 
 static struct sbmix_elem *snd_als4000_controls[] = {
-	&snd_sb16_ctl_master_play_vol,
-	&snd_dt019x_ctl_pcm_play_switch,
-	&snd_sb16_ctl_pcm_play_vol,
-	&snd_sb16_ctl_synth_capture_route,
-	&snd_dt019x_ctl_synth_play_switch,
-	&snd_sb16_ctl_synth_play_vol,
-	&snd_sb16_ctl_cd_capture_route,
-	&snd_sb16_ctl_cd_play_switch,
-	&snd_sb16_ctl_cd_play_vol,
-	&snd_sb16_ctl_line_capture_route,
-	&snd_sb16_ctl_line_play_switch,
-	&snd_sb16_ctl_line_play_vol,
-	&snd_sb16_ctl_mic_capture_route,
-	&snd_als4000_ctl_mic_20db_boost,
-	&snd_sb16_ctl_auto_mic_gain,
-	&snd_sb16_ctl_mic_play_switch,
-	&snd_sb16_ctl_mic_play_vol,
-	&snd_sb16_ctl_pc_speaker_vol,
-	&snd_sb16_ctl_capture_vol,
-	&snd_sb16_ctl_play_vol,
-	&snd_als4000_ctl_master_mono_playback_switch,
-	&snd_als4000_ctl_master_mono_capture_route,
-	&snd_als4000_ctl_mono_playback_switch,
-	&snd_als4000_ctl_mixer_loopback,
-	&snd_als4000_3d_control_switch,
-	&snd_als4000_3d_control_ratio,
-	&snd_als4000_3d_control_freq,
-	&snd_als4000_3d_control_delay,
-	&snd_als4000_3d_control_poweroff_switch,
+						/* ALS4000a.PDF regs page */
+	&snd_sb16_ctl_master_play_vol,		/* MX30/31 12 */
+	&snd_dt019x_ctl_pcm_play_switch,	/* MX4C    16 */
+	&snd_sb16_ctl_pcm_play_vol,		/* MX32/33 12 */
+	&snd_sb16_ctl_synth_capture_route,	/* MX3D/3E 14 */
+	&snd_dt019x_ctl_synth_play_switch,	/* MX4C    16 */
+	&snd_sb16_ctl_synth_play_vol,		/* MX34/35 12/13 */
+	&snd_sb16_ctl_cd_capture_route,		/* MX3D/3E 14 */
+	&snd_sb16_ctl_cd_play_switch,		/* MX3C    14 */
+	&snd_sb16_ctl_cd_play_vol,		/* MX36/37 13 */
+	&snd_sb16_ctl_line_capture_route,	/* MX3D/3E 14 */
+	&snd_sb16_ctl_line_play_switch,		/* MX3C    14 */
+	&snd_sb16_ctl_line_play_vol,		/* MX38/39 13 */
+	&snd_sb16_ctl_mic_capture_route,	/* MX3D/3E 14 */
+	&snd_als4000_ctl_mic_20db_boost,	/* MX4D    16 */
+	&snd_sb16_ctl_mic_play_switch,		/* MX3C    14 */
+	&snd_sb16_ctl_mic_play_vol,		/* MX3A    13 */
+	&snd_sb16_ctl_pc_speaker_vol,		/* MX3B    14 */
+	&snd_sb16_ctl_capture_vol,		/* MX3F/40 15 */
+	&snd_sb16_ctl_play_vol,			/* MX41/42 15 */
+	&snd_als4000_ctl_master_mono_playback_switch, /* MX4C 16 */
+	&snd_als4k_ctl_master_mono_capture_route, /* MX4B  16 */
+	&snd_als4000_ctl_mono_playback_switch,	/* MX4C    16 */
+	&snd_als4000_ctl_mixer_analog_loopback, /* MX4D    16 */
+	&snd_als4000_ctl_mixer_digital_loopback, /* CR3    21 */
+	&snd_als4000_3d_control_switch,		 /* MX50   17 */
+	&snd_als4000_3d_control_ratio,		 /* MX50   17 */
+	&snd_als4000_3d_control_freq,		 /* MX50   17 */
+	&snd_als4000_3d_control_delay,		 /* MX51   18 */
+	&snd_als4000_3d_control_poweroff_switch,	/* MX51    18 */
+	&snd_als4000_ctl_3db_freq_control_switch,	/* MX4F    17 */
 #ifdef NOT_AVAILABLE
 	&snd_als4000_ctl_fmdac,
 	&snd_als4000_ctl_qsound,
@@ -905,13 +982,14 @@ static unsigned char dt019x_saved_regs[] = {
 };
 
 static unsigned char als4000_saved_regs[] = {
+	/* please verify in dsheet whether regs to be added
+	   are actually real H/W or just dummy */
 	SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,
 	SB_DSP4_OUTPUT_SW,
 	SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,
 	SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,
 	SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,
 	SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,
-	SB_DSP4_MIC_AGC,
 	SB_DSP4_MIC_DEV,
 	SB_DSP4_SPEAKER_DEV,
 	SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,
@@ -919,8 +997,10 @@ static unsigned char als4000_saved_regs[] = {
 	SB_DT019X_OUTPUT_SW2,
 	SB_ALS4000_MONO_IO_CTRL,
 	SB_ALS4000_MIC_IN_GAIN,
+	SB_ALS4000_FMDAC,
 	SB_ALS4000_3D_SND_FX,
 	SB_ALS4000_3D_TIME_DELAY,
+	SB_ALS4000_CR3_CONFIGURATION,
 };
 
 static void save_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
-- 
cgit v1.2.3


From 3b89d7d881a1dbb4da158f7eb5d6b3ceefc72810 Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Sun, 22 Feb 2009 17:40:07 -0800
Subject: slub: move min_partial to struct kmem_cache

Although it allows for better cacheline use, it is unnecessary to save a
copy of the cache's min_partial value in each kmem_cache_node.

Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
---
 include/linux/slub_def.h |  2 +-
 mm/slub.c                | 29 ++++++++++++++++-------------
 2 files changed, 17 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 2f5c16b1aacd..f20a89e4d52c 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -46,7 +46,6 @@ struct kmem_cache_cpu {
 struct kmem_cache_node {
 	spinlock_t list_lock;	/* Protect partial list and nr_partial */
 	unsigned long nr_partial;
-	unsigned long min_partial;
 	struct list_head partial;
 #ifdef CONFIG_SLUB_DEBUG
 	atomic_long_t nr_slabs;
@@ -89,6 +88,7 @@ struct kmem_cache {
 	void (*ctor)(void *);
 	int inuse;		/* Offset to metadata */
 	int align;		/* Alignment */
+	unsigned long min_partial;
 	const char *name;	/* Name (only for display!) */
 	struct list_head list;	/* List of slab caches */
 #ifdef CONFIG_SLUB_DEBUG
diff --git a/mm/slub.c b/mm/slub.c
index bdc9abb08a23..4fff385b17a3 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1335,7 +1335,7 @@ static struct page *get_any_partial(struct kmem_cache *s, gfp_t flags)
 		n = get_node(s, zone_to_nid(zone));
 
 		if (n && cpuset_zone_allowed_hardwall(zone, flags) &&
-				n->nr_partial > n->min_partial) {
+				n->nr_partial > s->min_partial) {
 			page = get_partial_node(n);
 			if (page)
 				return page;
@@ -1387,7 +1387,7 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail)
 		slab_unlock(page);
 	} else {
 		stat(c, DEACTIVATE_EMPTY);
-		if (n->nr_partial < n->min_partial) {
+		if (n->nr_partial < s->min_partial) {
 			/*
 			 * Adding an empty slab to the partial slabs in order
 			 * to avoid page allocator overhead. This slab needs
@@ -1928,17 +1928,6 @@ static void
 init_kmem_cache_node(struct kmem_cache_node *n, struct kmem_cache *s)
 {
 	n->nr_partial = 0;
-
-	/*
-	 * The larger the object size is, the more pages we want on the partial
-	 * list to avoid pounding the page allocator excessively.
-	 */
-	n->min_partial = ilog2(s->size);
-	if (n->min_partial < MIN_PARTIAL)
-		n->min_partial = MIN_PARTIAL;
-	else if (n->min_partial > MAX_PARTIAL)
-		n->min_partial = MAX_PARTIAL;
-
 	spin_lock_init(&n->list_lock);
 	INIT_LIST_HEAD(&n->partial);
 #ifdef CONFIG_SLUB_DEBUG
@@ -2181,6 +2170,15 @@ static int init_kmem_cache_nodes(struct kmem_cache *s, gfp_t gfpflags)
 }
 #endif
 
+static void calculate_min_partial(struct kmem_cache *s, unsigned long min)
+{
+	if (min < MIN_PARTIAL)
+		min = MIN_PARTIAL;
+	else if (min > MAX_PARTIAL)
+		min = MAX_PARTIAL;
+	s->min_partial = min;
+}
+
 /*
  * calculate_sizes() determines the order and the distribution of data within
  * a slab object.
@@ -2319,6 +2317,11 @@ static int kmem_cache_open(struct kmem_cache *s, gfp_t gfpflags,
 	if (!calculate_sizes(s, -1))
 		goto error;
 
+	/*
+	 * The larger the object size is, the more pages we want on the partial
+	 * list to avoid pounding the page allocator excessively.
+	 */
+	calculate_min_partial(s, ilog2(s->size));
 	s->refcount = 1;
 #ifdef CONFIG_NUMA
 	s->remote_node_defrag_ratio = 1000;
-- 
cgit v1.2.3


From d060ffc1840e37100628f520e66600c5ae483b44 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Tue, 24 Feb 2009 15:23:58 +0100
Subject: netfilter: install missing headers

iptables imports headers from (the unifdefed headers of a)
kernel tree, but some headers happened to not be installed.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/linux/netfilter/Kbuild      | 6 ++++++
 include/linux/netfilter_ipv6/Kbuild | 1 +
 2 files changed, 7 insertions(+)

(limited to 'include')

diff --git a/include/linux/netfilter/Kbuild b/include/linux/netfilter/Kbuild
index deeaee5c83f2..947b47d7f6c0 100644
--- a/include/linux/netfilter/Kbuild
+++ b/include/linux/netfilter/Kbuild
@@ -14,8 +14,11 @@ header-y += xt_NFQUEUE.h
 header-y += xt_RATEEST.h
 header-y += xt_SECMARK.h
 header-y += xt_TCPMSS.h
+header-y += xt_TCPOPTSTRIP.h
+header-y += xt_TPROXY.h
 header-y += xt_comment.h
 header-y += xt_connbytes.h
+header-y += xt_connlimit.h
 header-y += xt_connmark.h
 header-y += xt_conntrack.h
 header-y += xt_dccp.h
@@ -31,6 +34,7 @@ header-y += xt_mark.h
 header-y += xt_multiport.h
 header-y += xt_owner.h
 header-y += xt_pkttype.h
+header-y += xt_quota.h
 header-y += xt_rateest.h
 header-y += xt_realm.h
 header-y += xt_recent.h
@@ -40,6 +44,8 @@ header-y += xt_statistic.h
 header-y += xt_string.h
 header-y += xt_tcpmss.h
 header-y += xt_tcpudp.h
+header-y += xt_time.h
+header-y += xt_u32.h
 
 unifdef-y += nf_conntrack_common.h
 unifdef-y += nf_conntrack_ftp.h
diff --git a/include/linux/netfilter_ipv6/Kbuild b/include/linux/netfilter_ipv6/Kbuild
index 8887a5fcd1d0..aca4bd1f6d7c 100644
--- a/include/linux/netfilter_ipv6/Kbuild
+++ b/include/linux/netfilter_ipv6/Kbuild
@@ -11,6 +11,7 @@ header-y += ip6t_length.h
 header-y += ip6t_limit.h
 header-y += ip6t_mac.h
 header-y += ip6t_mark.h
+header-y += ip6t_mh.h
 header-y += ip6t_multiport.h
 header-y += ip6t_opts.h
 header-y += ip6t_owner.h
-- 
cgit v1.2.3


From 1ce85fe402137824246bad03ff85f3913d565c17 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 24 Feb 2009 23:18:28 -0800
Subject: netlink: change nlmsg_notify() return value logic

This patch changes the return value of nlmsg_notify() as follows:

If NETLINK_BROADCAST_ERROR is set by any of the listeners and
an error in the delivery happened, return the broadcast error;
else if there are no listeners apart from the socket that
requested a change with the echo flag, return the result of the
unicast notification. Thus, with this patch, the unicast
notification is handled in the same way of a broadcast listener
that has set the NETLINK_BROADCAST_ERROR socket flag.

This patch is useful in case that the caller of nlmsg_notify()
wants to know the result of the delivery of a netlink notification
(including the broadcast delivery) and take any action in case
that the delivery failed. For example, ctnetlink can drop packets
if the event delivery failed to provide reliable logging and
state-synchronization at the cost of dropping packets.

This patch also modifies the rtnetlink code to ignore the return
value of rtnl_notify() in all callers. The function rtnl_notify()
(before this patch) returned the error of the unicast notification
which makes rtnl_set_sk_err() reports errors to all listeners. This
is not of any help since the origin of the change (the socket that
requested the echoing) notices the ENOBUFS error if the notification
fails and should resync itself.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/rtnetlink.h |  4 ++--
 net/bridge/br_netlink.c   |  3 ++-
 net/core/fib_rules.c      |  3 ++-
 net/core/neighbour.c      |  3 ++-
 net/core/rtnetlink.c      |  9 +++++----
 net/decnet/dn_dev.c       |  3 ++-
 net/decnet/dn_table.c     |  3 ++-
 net/ipv4/devinet.c        |  3 ++-
 net/ipv4/fib_semantics.c  |  5 +++--
 net/ipv6/addrconf.c       |  9 ++++++---
 net/ipv6/ndisc.c          |  6 +-----
 net/ipv6/route.c          |  5 +++--
 net/netlink/af_netlink.c  | 14 ++++++++++----
 net/phonet/pn_netlink.c   |  5 +++--
 14 files changed, 45 insertions(+), 30 deletions(-)

(limited to 'include')

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 1e5f6730ff31..35a07c830f79 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -622,8 +622,8 @@ static __inline__ int rtattr_strcmp(const struct rtattr *rta, const char *str)
 
 extern int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int echo);
 extern int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid);
-extern int rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
-		       struct nlmsghdr *nlh, gfp_t flags);
+extern void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid,
+			u32 group, struct nlmsghdr *nlh, gfp_t flags);
 extern void rtnl_set_sk_err(struct net *net, u32 group, int error);
 extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);
 extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst,
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index ba7be195803c..fcffb3fb1177 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -98,7 +98,8 @@ void br_ifinfo_notify(int event, struct net_bridge_port *port)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+	rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_LINK, err);
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 32b3a0152d7a..98691e1466b8 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -588,7 +588,8 @@ static void notify_rule_change(int event, struct fib_rule *rule,
 		goto errout;
 	}
 
-	err = rtnl_notify(skb, net, pid, ops->nlgroup, nlh, GFP_KERNEL);
+	rtnl_notify(skb, net, pid, ops->nlgroup, nlh, GFP_KERNEL);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, ops->nlgroup, err);
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 278a142d1047..e1144cb94b99 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2534,7 +2534,8 @@ static void __neigh_notify(struct neighbour *n, int type, int flags)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
+	rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 790dd205bb5d..d78030f88bd0 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -455,8 +455,8 @@ int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid)
 	return nlmsg_unicast(rtnl, skb, pid);
 }
 
-int rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
-		struct nlmsghdr *nlh, gfp_t flags)
+void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
+		 struct nlmsghdr *nlh, gfp_t flags)
 {
 	struct sock *rtnl = net->rtnl;
 	int report = 0;
@@ -464,7 +464,7 @@ int rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
 	if (nlh)
 		report = nlmsg_report(nlh);
 
-	return nlmsg_notify(rtnl, skb, pid, group, report, flags);
+	nlmsg_notify(rtnl, skb, pid, group, report, flags);
 }
 
 void rtnl_set_sk_err(struct net *net, u32 group, int error)
@@ -1246,7 +1246,8 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
+	rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_LINK, err);
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index daf2b98b15fe..e457769bf7a7 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -769,7 +769,8 @@ static void dn_ifaddr_notify(int event, struct dn_ifaddr *ifa)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, &init_net, 0, RTNLGRP_DECnet_IFADDR, NULL, GFP_KERNEL);
+	rtnl_notify(skb, &init_net, 0, RTNLGRP_DECnet_IFADDR, NULL, GFP_KERNEL);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(&init_net, RTNLGRP_DECnet_IFADDR, err);
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index 69ad9280c693..67054b0d550f 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -375,7 +375,8 @@ static void dn_rtmsg_fib(int event, struct dn_fib_node *f, int z, u32 tb_id,
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, &init_net, pid, RTNLGRP_DECnet_ROUTE, nlh, GFP_KERNEL);
+	rtnl_notify(skb, &init_net, pid, RTNLGRP_DECnet_ROUTE, nlh, GFP_KERNEL);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(&init_net, RTNLGRP_DECnet_ROUTE, err);
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index d519a6a66726..126bb911880f 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1216,7 +1216,8 @@ static void rtmsg_ifa(int event, struct in_ifaddr *ifa, struct nlmsghdr *nlh,
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, pid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL);
+	rtnl_notify(skb, net, pid, RTNLGRP_IPV4_IFADDR, nlh, GFP_KERNEL);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_IPV4_IFADDR, err);
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 4817dea3bc73..f831df500907 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -322,8 +322,9 @@ void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, info->nl_net, info->pid, RTNLGRP_IPV4_ROUTE,
-			  info->nlh, GFP_KERNEL);
+	rtnl_notify(skb, info->nl_net, info->pid, RTNLGRP_IPV4_ROUTE,
+		    info->nlh, GFP_KERNEL);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(info->nl_net, RTNLGRP_IPV4_ROUTE, err);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 03e2a1ad71e9..f8f76d6e21cb 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3638,7 +3638,8 @@ static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err);
@@ -3849,7 +3850,8 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err);
@@ -3919,7 +3921,8 @@ static void inet6_prefix_notify(int event, struct inet6_dev *idev,
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_IPV6_PREFIX, err);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 3cd83b85e9ef..9f061d1adbc2 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1095,11 +1095,7 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
 		&ipv6_hdr(ra)->saddr);
 	nlmsg_end(skb, nlh);
 
-	err = rtnl_notify(skb, net, 0, RTNLGRP_ND_USEROPT, NULL,
-			  GFP_ATOMIC);
-	if (err < 0)
-		goto errout;
-
+	rtnl_notify(skb, net, 0, RTNLGRP_ND_USEROPT, NULL, GFP_ATOMIC);
 	return;
 
 nla_put_failure:
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c3d486a3edad..1394ddb6e35c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2400,8 +2400,9 @@ void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, info->pid, RTNLGRP_IPV6_ROUTE,
-			  info->nlh, gfp_any());
+	rtnl_notify(skb, net, info->pid, RTNLGRP_IPV6_ROUTE,
+		    info->nlh, gfp_any());
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_IPV6_ROUTE, err);
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index ed587be1e1c2..2760b62dc2c1 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1760,12 +1760,18 @@ int nlmsg_notify(struct sock *sk, struct sk_buff *skb, u32 pid,
 			exclude_pid = pid;
 		}
 
-		/* errors reported via destination sk->sk_err */
-		nlmsg_multicast(sk, skb, exclude_pid, group, flags);
+		/* errors reported via destination sk->sk_err, but propagate
+		 * delivery errors if NETLINK_BROADCAST_ERROR flag is set */
+		err = nlmsg_multicast(sk, skb, exclude_pid, group, flags);
 	}
 
-	if (report)
-		err = nlmsg_unicast(sk, skb, pid);
+	if (report) {
+		int err2;
+
+		err2 = nlmsg_unicast(sk, skb, pid);
+		if (!err || err == -ESRCH)
+			err = err2;
+	}
 
 	return err;
 }
diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
index 1ceea1f92413..cec4e5951681 100644
--- a/net/phonet/pn_netlink.c
+++ b/net/phonet/pn_netlink.c
@@ -47,8 +47,9 @@ static void rtmsg_notify(int event, struct net_device *dev, u8 addr)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, dev_net(dev), 0,
-			  RTNLGRP_PHONET_IFADDR, NULL, GFP_KERNEL);
+	rtnl_notify(skb, dev_net(dev), 0,
+		    RTNLGRP_PHONET_IFADDR, NULL, GFP_KERNEL);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(dev_net(dev), RTNLGRP_PHONET_IFADDR, err);
-- 
cgit v1.2.3


From 2b9d1496e7835a603c340e8f0dd81f4b74d5f248 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Sun, 22 Feb 2009 15:48:43 +0100
Subject: time: ntp: make 64-bit constants more robust

Impact: cleanup, no functionality changed

 - make PPM_SCALE an explicit s64 constant, to
   remove (s64) casts from usage sites.

kernel/time/ntp.o:

   text	   data	    bss	    dec	    hex	filename
   2536	    114	    136	   2786	    ae2	ntp.o.before
   2536	    114	    136	   2786	    ae2	ntp.o.after

md5:
   40a7728d1188aa18e83e21a81fa7b150  ntp.o.before.asm
   40a7728d1188aa18e83e21a81fa7b150  ntp.o.after.asm

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/timex.h | 2 +-
 kernel/time/ntp.c     | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/timex.h b/include/linux/timex.h
index 998a55d80acf..aa3475fcff64 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -190,7 +190,7 @@ struct timex {
  * offset and maximum frequency tolerance.
  */
 #define SHIFT_USEC 16		/* frequency offset scale (shift) */
-#define PPM_SCALE (NSEC_PER_USEC << (NTP_SCALE_SHIFT - SHIFT_USEC))
+#define PPM_SCALE ((s64)NSEC_PER_USEC << (NTP_SCALE_SHIFT - SHIFT_USEC))
 #define PPM_SCALE_INV_SHIFT 19
 #define PPM_SCALE_INV ((1ll << (PPM_SCALE_INV_SHIFT + NTP_SCALE_SHIFT)) / \
 		       PPM_SCALE + 1)
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 4346ed6e623f..7447d57e021a 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -408,7 +408,7 @@ static inline void process_adjtimex_modes(struct timex *txc, struct timespec *ts
 		time_status &= ~STA_NANO;
 
 	if (txc->modes & ADJ_FREQUENCY) {
-		time_freq = (s64)txc->freq * PPM_SCALE;
+		time_freq = txc->freq * PPM_SCALE;
 		time_freq = min(time_freq, MAXFREQ_SCALED);
 		time_freq = max(time_freq, -MAXFREQ_SCALED);
 	}
@@ -505,7 +505,7 @@ int do_adjtimex(struct timex *txc)
 		result = TIME_ERROR;
 
 	txc->freq	   = shift_right((time_freq >> PPM_SCALE_INV_SHIFT) *
-					 (s64)PPM_SCALE_INV, NTP_SCALE_SHIFT);
+					 PPM_SCALE_INV, NTP_SCALE_SHIFT);
 	txc->maxerror	   = time_maxerror;
 	txc->esterror	   = time_esterror;
 	txc->status	   = time_status;
-- 
cgit v1.2.3


From b342501cd31e5546d0c9ca8ceff5ded1832f9e5b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Thu, 26 Feb 2009 20:20:29 +0100
Subject: sched: allow architectures to specify sched_clock_stable

Allow CONFIG_HAVE_UNSTABLE_SCHED_CLOCK architectures to still specify
that their sched_clock() implementation is reliable.

This will be used by x86 to switch on a faster sched_clock_cpu()
implementation on certain CPU types.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/sched.h | 10 ++++++++++
 kernel/sched_clock.c  | 45 ++++++++++++++++++++-------------------------
 2 files changed, 30 insertions(+), 25 deletions(-)

(limited to 'include')

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8981e52c714f..a063d19b7a7d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1670,6 +1670,16 @@ static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
 	return set_cpus_allowed_ptr(p, &new_mask);
 }
 
+/*
+ * Architectures can set this to 1 if they have specified
+ * CONFIG_HAVE_UNSTABLE_SCHED_CLOCK in their arch Kconfig,
+ * but then during bootup it turns out that sched_clock()
+ * is reliable after all:
+ */
+#ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+extern int sched_clock_stable;
+#endif
+
 extern unsigned long long sched_clock(void);
 
 extern void sched_clock_init(void);
diff --git a/kernel/sched_clock.c b/kernel/sched_clock.c
index a0b0852414cc..a755d023805a 100644
--- a/kernel/sched_clock.c
+++ b/kernel/sched_clock.c
@@ -24,11 +24,11 @@
  * The clock: sched_clock_cpu() is monotonic per cpu, and should be somewhat
  * consistent between cpus (never more than 2 jiffies difference).
  */
-#include <linux/sched.h>
-#include <linux/percpu.h>
 #include <linux/spinlock.h>
-#include <linux/ktime.h>
 #include <linux/module.h>
+#include <linux/percpu.h>
+#include <linux/ktime.h>
+#include <linux/sched.h>
 
 /*
  * Scheduler clock - returns current time in nanosec units.
@@ -43,6 +43,10 @@ unsigned long long __attribute__((weak)) sched_clock(void)
 static __read_mostly int sched_clock_running;
 
 #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+__read_mostly int sched_clock_stable;
+#else
+static const int sched_clock_stable = 1;
+#endif
 
 struct sched_clock_data {
 	/*
@@ -87,7 +91,7 @@ void sched_clock_init(void)
 }
 
 /*
- * min,max except they take wrapping into account
+ * min, max except they take wrapping into account
  */
 
 static inline u64 wrap_min(u64 x, u64 y)
@@ -116,10 +120,13 @@ static u64 __update_sched_clock(struct sched_clock_data *scd, u64 now)
 	if (unlikely(delta < 0))
 		delta = 0;
 
+	if (unlikely(!sched_clock_running))
+		return 0ull;
+
 	/*
 	 * scd->clock = clamp(scd->tick_gtod + delta,
-	 * 		      max(scd->tick_gtod, scd->clock),
-	 * 		      scd->tick_gtod + TICK_NSEC);
+	 *		      max(scd->tick_gtod, scd->clock),
+	 *		      scd->tick_gtod + TICK_NSEC);
 	 */
 
 	clock = scd->tick_gtod + delta;
@@ -148,12 +155,13 @@ static void lock_double_clock(struct sched_clock_data *data1,
 
 u64 sched_clock_cpu(int cpu)
 {
-	struct sched_clock_data *scd = cpu_sdc(cpu);
 	u64 now, clock, this_clock, remote_clock;
+	struct sched_clock_data *scd;
 
-	if (unlikely(!sched_clock_running))
-		return 0ull;
+	if (sched_clock_stable)
+		return sched_clock();
 
+	scd = cpu_sdc(cpu);
 	WARN_ON_ONCE(!irqs_disabled());
 	now = sched_clock();
 
@@ -193,6 +201,8 @@ u64 sched_clock_cpu(int cpu)
 	return clock;
 }
 
+#ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+
 void sched_clock_tick(void)
 {
 	struct sched_clock_data *scd = this_scd();
@@ -235,22 +245,7 @@ void sched_clock_idle_wakeup_event(u64 delta_ns)
 }
 EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event);
 
-#else /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */
-
-void sched_clock_init(void)
-{
-	sched_clock_running = 1;
-}
-
-u64 sched_clock_cpu(int cpu)
-{
-	if (unlikely(!sched_clock_running))
-		return 0;
-
-	return sched_clock();
-}
-
-#endif
+#endif /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */
 
 unsigned long long cpu_clock(int cpu)
 {
-- 
cgit v1.2.3


From c4f912e155504e94dd4f3d63c378dab0ff03dbda Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 15 Jan 2009 21:52:16 +0100
Subject: Bluetooth: Add global deferred socket parameter

The L2CAP and RFCOMM applications require support for authorization
and the ability of rejecting incoming connection requests. The socket
interface is not really able to support this.

This patch does the ground work for a socket option to defer connection
setup. Setting this option allows calling of accept() and then the
first read() will trigger the final connection setup. Calling close()
would reject the connection.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/bluetooth.h | 3 +++
 net/bluetooth/af_bluetooth.c      | 8 ++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index a04f8463ac7e..847e9e6df08b 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -53,6 +53,8 @@
 #define SOL_SCO		17
 #define SOL_RFCOMM	18
 
+#define BT_DEFER_SETUP	7
+
 #define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
 #define BT_ERR(fmt, arg...)  printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg)
 #define BT_DBG(fmt, arg...)  pr_debug("%s: " fmt "\n" , __func__ , ## arg)
@@ -108,6 +110,7 @@ struct bt_sock {
 	bdaddr_t    dst;
 	struct list_head accept_q;
 	struct sock *parent;
+	u32 defer_setup;
 };
 
 struct bt_sock_list {
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 744ed3f07ef3..7c0031ff8cfb 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -217,7 +217,8 @@ struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock)
 			continue;
 		}
 
-		if (sk->sk_state == BT_CONNECTED || !newsock) {
+		if (sk->sk_state == BT_CONNECTED || !newsock ||
+						bt_sk(parent)->defer_setup) {
 			bt_accept_unlink(sk);
 			if (newsock)
 				sock_graft(sk, newsock);
@@ -232,7 +233,7 @@ struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock)
 EXPORT_SYMBOL(bt_accept_dequeue);
 
 int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
-	struct msghdr *msg, size_t len, int flags)
+				struct msghdr *msg, size_t len, int flags)
 {
 	int noblock = flags & MSG_DONTWAIT;
 	struct sock *sk = sock->sk;
@@ -275,6 +276,9 @@ static inline unsigned int bt_accept_poll(struct sock *parent)
 	struct list_head *p, *n;
 	struct sock *sk;
 
+	if (bt_sk(parent)->defer_setup)
+		return POLLIN | POLLRDNORM;
+
 	list_for_each_safe(p, n, &bt_sk(parent)->accept_q) {
 		sk = (struct sock *) list_entry(p, struct bt_sock, accept_q);
 		if (sk->sk_state == BT_CONNECTED)
-- 
cgit v1.2.3


From bb23c0ab824653be4aa7dfca15b07b3059717004 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 15 Jan 2009 21:56:48 +0100
Subject: Bluetooth: Add support for deferring RFCOMM connection setup

In order to decide if listening RFCOMM sockets should be accept()ed
the BD_ADDR of the remote device needs to be known. This patch adds
a socket option which defines a timeout for deferring the actual
connection setup.

The connection setup is done after reading from the socket for the
first time. Until then writing to the socket returns ENOTCONN.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/rfcomm.h |  6 +++--
 net/bluetooth/rfcomm/core.c    | 56 +++++++++++++++++++++++++++++++-----------
 net/bluetooth/rfcomm/sock.c    | 44 ++++++++++++++++++++++++++++++++-
 3 files changed, 88 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index 4dc8d92a4638..71b45f459687 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -185,6 +185,7 @@ struct rfcomm_dlc {
 	u8            out;
 
 	u32           link_mode;
+	u32           defer_setup;
 
 	uint          mtu;
 	uint          cfc;
@@ -202,10 +203,11 @@ struct rfcomm_dlc {
 #define RFCOMM_RX_THROTTLED 0
 #define RFCOMM_TX_THROTTLED 1
 #define RFCOMM_TIMED_OUT    2
-#define RFCOMM_MSC_PENDING  3 
+#define RFCOMM_MSC_PENDING  3
 #define RFCOMM_AUTH_PENDING 4
 #define RFCOMM_AUTH_ACCEPT  5
 #define RFCOMM_AUTH_REJECT  6
+#define RFCOMM_DEFER_SETUP  7
 
 /* Scheduling flags and events */
 #define RFCOMM_SCHED_STATE  0
@@ -239,6 +241,7 @@ int  rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
 int  rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb);
 int  rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
 int  rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
+void rfcomm_dlc_accept(struct rfcomm_dlc *d);
 
 #define rfcomm_dlc_lock(d)     spin_lock(&d->lock)
 #define rfcomm_dlc_unlock(d)   spin_unlock(&d->lock)
@@ -333,7 +336,6 @@ struct rfcomm_dev_req {
 	bdaddr_t src;
 	bdaddr_t dst;
 	u8       channel;
-	
 };
 
 struct rfcomm_dev_info {
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index acd84fd524b8..edee49e00fbf 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -421,9 +421,16 @@ static int __rfcomm_dlc_close(struct rfcomm_dlc *d, int err)
 			d, d->state, d->dlci, err, s);
 
 	switch (d->state) {
-	case BT_CONNECTED:
-	case BT_CONFIG:
 	case BT_CONNECT:
+	case BT_CONFIG:
+		if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
+			set_bit(RFCOMM_AUTH_REJECT, &d->flags);
+			rfcomm_schedule(RFCOMM_SCHED_AUTH);
+			break;
+		}
+		/* Fall through */
+
+	case BT_CONNECTED:
 		d->state = BT_DISCONN;
 		if (skb_queue_empty(&d->tx_queue)) {
 			rfcomm_send_disc(s, d->dlci);
@@ -434,6 +441,14 @@ static int __rfcomm_dlc_close(struct rfcomm_dlc *d, int err)
 		}
 		break;
 
+	case BT_OPEN:
+		if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
+			set_bit(RFCOMM_AUTH_REJECT, &d->flags);
+			rfcomm_schedule(RFCOMM_SCHED_AUTH);
+			break;
+		}
+		/* Fall through */
+
 	default:
 		rfcomm_dlc_clear_timer(d);
 
@@ -1162,7 +1177,7 @@ static int rfcomm_recv_disc(struct rfcomm_session *s, u8 dlci)
 	return 0;
 }
 
-static void rfcomm_dlc_accept(struct rfcomm_dlc *d)
+void rfcomm_dlc_accept(struct rfcomm_dlc *d)
 {
 	struct sock *sk = d->session->sock->sk;
 
@@ -1181,6 +1196,20 @@ static void rfcomm_dlc_accept(struct rfcomm_dlc *d)
 	rfcomm_send_msc(d->session, 1, d->dlci, d->v24_sig);
 }
 
+static void rfcomm_check_accept(struct rfcomm_dlc *d)
+{
+	if (rfcomm_check_link_mode(d)) {
+		set_bit(RFCOMM_AUTH_PENDING, &d->flags);
+		rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+	} else {
+		if (d->defer_setup) {
+			set_bit(RFCOMM_DEFER_SETUP, &d->flags);
+			rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+		} else
+			rfcomm_dlc_accept(d);
+	}
+}
+
 static int rfcomm_recv_sabm(struct rfcomm_session *s, u8 dlci)
 {
 	struct rfcomm_dlc *d;
@@ -1203,11 +1232,7 @@ static int rfcomm_recv_sabm(struct rfcomm_session *s, u8 dlci)
 	if (d) {
 		if (d->state == BT_OPEN) {
 			/* DLC was previously opened by PN request */
-			if (rfcomm_check_link_mode(d)) {
-				set_bit(RFCOMM_AUTH_PENDING, &d->flags);
-				rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
-			} else
-				rfcomm_dlc_accept(d);
+			rfcomm_check_accept(d);
 		}
 		return 0;
 	}
@@ -1219,11 +1244,7 @@ static int rfcomm_recv_sabm(struct rfcomm_session *s, u8 dlci)
 		d->addr = __addr(s->initiator, dlci);
 		rfcomm_dlc_link(s, d);
 
-		if (rfcomm_check_link_mode(d)) {
-			set_bit(RFCOMM_AUTH_PENDING, &d->flags);
-			rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
-		} else
-			rfcomm_dlc_accept(d);
+		rfcomm_check_accept(d);
 	} else {
 		rfcomm_send_dm(s, dlci);
 	}
@@ -1717,8 +1738,13 @@ static inline void rfcomm_process_dlcs(struct rfcomm_session *s)
 			if (d->out) {
 				rfcomm_send_pn(s, 1, d);
 				rfcomm_dlc_set_timer(d, RFCOMM_CONN_TIMEOUT);
-			} else
-				rfcomm_dlc_accept(d);
+			} else {
+				if (d->defer_setup) {
+					set_bit(RFCOMM_DEFER_SETUP, &d->flags);
+					rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+				} else
+					rfcomm_dlc_accept(d);
+			}
 			if (d->link_mode & RFCOMM_LM_SECURE) {
 				struct sock *sk = s->sock->sk;
 				hci_conn_change_link_key(l2cap_pi(sk)->conn->hcon);
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 65dd7133d72b..d37a829a81e4 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -262,8 +262,10 @@ static void rfcomm_sock_init(struct sock *sk, struct sock *parent)
 	if (parent) {
 		sk->sk_type = parent->sk_type;
 		pi->link_mode = rfcomm_pi(parent)->link_mode;
+		pi->dlc->defer_setup = bt_sk(parent)->defer_setup;
 	} else {
 		pi->link_mode = 0;
+		pi->dlc->defer_setup = 0;
 	}
 
 	pi->dlc->link_mode = pi->link_mode;
@@ -554,6 +556,9 @@ static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 	struct sk_buff *skb;
 	int sent = 0;
 
+	if (test_bit(RFCOMM_DEFER_SETUP, &d->flags))
+		return -ENOTCONN;
+
 	if (msg->msg_flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
@@ -633,10 +638,16 @@ static int rfcomm_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 			       struct msghdr *msg, size_t size, int flags)
 {
 	struct sock *sk = sock->sk;
+	struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
 	int err = 0;
 	size_t target, copied = 0;
 	long timeo;
 
+	if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
+		rfcomm_dlc_accept(d);
+		return 0;
+	}
+
 	if (flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
@@ -746,6 +757,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
 {
 	struct sock *sk = sock->sk;
 	int err = 0;
+	u32 opt;
 
 	BT_DBG("sk %p", sk);
 
@@ -755,6 +767,20 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
 	lock_sock(sk);
 
 	switch (optname) {
+	case BT_DEFER_SETUP:
+		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (get_user(opt, (u32 __user *) optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		bt_sk(sk)->defer_setup = opt;
+		break;
+
 	default:
 		err = -ENOPROTOOPT;
 		break;
@@ -785,7 +811,8 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
 		break;
 
 	case RFCOMM_CONNINFO:
-		if (sk->sk_state != BT_CONNECTED) {
+		if (sk->sk_state != BT_CONNECTED &&
+					!rfcomm_pi(sk)->dlc->defer_setup) {
 			err = -ENOTCONN;
 			break;
 		}
@@ -826,6 +853,17 @@ static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, c
 	lock_sock(sk);
 
 	switch (optname) {
+	case BT_DEFER_SETUP:
+		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (put_user(bt_sk(sk)->defer_setup, (u32 __user *) optval))
+			err = -EFAULT;
+
+		break;
+
 	default:
 		err = -ENOPROTOOPT;
 		break;
@@ -938,6 +976,10 @@ int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc *
 
 done:
 	bh_unlock_sock(parent);
+
+	if (bt_sk(parent)->defer_setup)
+		parent->sk_state_change(parent);
+
 	return result;
 }
 
-- 
cgit v1.2.3


From 8c1b235594fbab9a13240a1dac12ea9fd99b6440 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 15 Jan 2009 21:58:04 +0100
Subject: Bluetooth: Add enhanced security model for Simple Pairing

The current security model is based around the flags AUTH, ENCRYPT and
SECURE. Starting with support for the Bluetooth 2.1 specification this is
no longer sufficient. The different security levels are now defined as
SDP, LOW, MEDIUM and SECURE.

Previously it was possible to set each security independently, but this
actually doesn't make a lot of sense. For Bluetooth the encryption depends
on a previous successful authentication. Also you can only update your
existing link key if you successfully created at least one before. And of
course the update of link keys without having proper encryption in place
is a security issue.

The new security levels from the Bluetooth 2.1 specification are now
used internally. All old settings are mapped to the new values and this
way it ensures that old applications still work. The only limitation
is that it is no longer possible to set authentication without also
enabling encryption. No application should have done this anyway since
this is actually a security issue. Without encryption the integrity of
the authentication can't be guaranteed.

As default for a new L2CAP or RFCOMM connection, the LOW security level
is used. The only exception here are the service discovery sessions on
PSM 1 where SDP level is used. To have similar security strength as with
a Bluetooth 2.0 and before combination key, the MEDIUM level should be
used. This is according to the Bluetooth specification. The MEDIUM level
will not require any kind of man-in-the-middle (MITM) protection. Only
the HIGH security level will require this.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/bluetooth.h |   9 +++
 include/net/bluetooth/hci_core.h  |  56 +++++++++-------
 net/bluetooth/hci_conn.c          |  45 ++++++++-----
 net/bluetooth/hci_event.c         |   3 +-
 net/bluetooth/l2cap.c             | 134 ++++++++++++--------------------------
 net/bluetooth/rfcomm/core.c       |  81 +++++++----------------
 net/bluetooth/sco.c               |   2 +-
 7 files changed, 139 insertions(+), 191 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 847e9e6df08b..3ad5390a4dd5 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -53,6 +53,15 @@
 #define SOL_SCO		17
 #define SOL_RFCOMM	18
 
+#define BT_SECURITY	4
+struct bt_security {
+	__u8 level;
+};
+#define BT_SECURITY_SDP		0
+#define BT_SECURITY_LOW		1
+#define BT_SECURITY_MEDIUM	2
+#define BT_SECURITY_HIGH	3
+
 #define BT_DEFER_SETUP	7
 
 #define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 46a43b721dd6..4b14972c1694 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -169,6 +169,7 @@ struct hci_conn {
 	__u16            link_policy;
 	__u32		 link_mode;
 	__u8             auth_type;
+	__u8             sec_level;
 	__u8             power_save;
 	unsigned long	 pend;
 
@@ -325,12 +326,11 @@ int hci_conn_del(struct hci_conn *conn);
 void hci_conn_hash_flush(struct hci_dev *hdev);
 void hci_conn_check_pending(struct hci_dev *hdev);
 
-struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 auth_type);
+struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 int hci_conn_check_link_mode(struct hci_conn *conn);
-int hci_conn_auth(struct hci_conn *conn);
-int hci_conn_encrypt(struct hci_conn *conn);
+int hci_conn_security(struct hci_conn *conn, __u8 sec_level);
 int hci_conn_change_link_key(struct hci_conn *conn);
-int hci_conn_switch_role(struct hci_conn *conn, uint8_t role);
+int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 
 void hci_conn_enter_active_mode(struct hci_conn *conn);
 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
@@ -470,26 +470,25 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 
 /* ----- HCI protocols ----- */
 struct hci_proto {
-	char 		*name;
+	char		*name;
 	unsigned int	id;
 	unsigned long	flags;
 
 	void		*priv;
 
-	int (*connect_ind) 	(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
+	int (*connect_ind)	(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 	int (*connect_cfm)	(struct hci_conn *conn, __u8 status);
 	int (*disconn_ind)	(struct hci_conn *conn, __u8 reason);
 	int (*recv_acldata)	(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 	int (*recv_scodata)	(struct hci_conn *conn, struct sk_buff *skb);
-	int (*auth_cfm)		(struct hci_conn *conn, __u8 status);
-	int (*encrypt_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
+	int (*security_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
 };
 
 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 {
 	register struct hci_proto *hp;
 	int mask = 0;
-	
+
 	hp = hci_proto[HCI_PROTO_L2CAP];
 	if (hp && hp->connect_ind)
 		mask |= hp->connect_ind(hdev, bdaddr, type);
@@ -530,14 +529,20 @@ static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason)
 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 {
 	register struct hci_proto *hp;
+	__u8 encrypt;
+
+	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
+		return;
+
+	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 
 	hp = hci_proto[HCI_PROTO_L2CAP];
-	if (hp && hp->auth_cfm)
-		hp->auth_cfm(conn, status);
+	if (hp && hp->security_cfm)
+		hp->security_cfm(conn, status, encrypt);
 
 	hp = hci_proto[HCI_PROTO_SCO];
-	if (hp && hp->auth_cfm)
-		hp->auth_cfm(conn, status);
+	if (hp && hp->security_cfm)
+		hp->security_cfm(conn, status, encrypt);
 }
 
 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
@@ -545,12 +550,12 @@ static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u
 	register struct hci_proto *hp;
 
 	hp = hci_proto[HCI_PROTO_L2CAP];
-	if (hp && hp->encrypt_cfm)
-		hp->encrypt_cfm(conn, status, encrypt);
+	if (hp && hp->security_cfm)
+		hp->security_cfm(conn, status, encrypt);
 
 	hp = hci_proto[HCI_PROTO_SCO];
-	if (hp && hp->encrypt_cfm)
-		hp->encrypt_cfm(conn, status, encrypt);
+	if (hp && hp->security_cfm)
+		hp->security_cfm(conn, status, encrypt);
 }
 
 int hci_register_proto(struct hci_proto *hproto);
@@ -562,8 +567,7 @@ struct hci_cb {
 
 	char *name;
 
-	void (*auth_cfm)	(struct hci_conn *conn, __u8 status);
-	void (*encrypt_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
+	void (*security_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
 	void (*key_change_cfm)	(struct hci_conn *conn, __u8 status);
 	void (*role_switch_cfm)	(struct hci_conn *conn, __u8 status, __u8 role);
 };
@@ -571,14 +575,20 @@ struct hci_cb {
 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 {
 	struct list_head *p;
+	__u8 encrypt;
 
 	hci_proto_auth_cfm(conn, status);
 
+	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
+		return;
+
+	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
+
 	read_lock_bh(&hci_cb_list_lock);
 	list_for_each(p, &hci_cb_list) {
 		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
-		if (cb->auth_cfm)
-			cb->auth_cfm(conn, status);
+		if (cb->security_cfm)
+			cb->security_cfm(conn, status, encrypt);
 	}
 	read_unlock_bh(&hci_cb_list_lock);
 }
@@ -592,8 +602,8 @@ static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encr
 	read_lock_bh(&hci_cb_list_lock);
 	list_for_each(p, &hci_cb_list) {
 		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
-		if (cb->encrypt_cfm)
-			cb->encrypt_cfm(conn, status, encrypt);
+		if (cb->security_cfm)
+			cb->security_cfm(conn, status, encrypt);
 	}
 	read_unlock_bh(&hci_cb_list_lock);
 }
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index a4a789f24c8d..98f97a1e9bbb 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -325,7 +325,7 @@ EXPORT_SYMBOL(hci_get_route);
 
 /* Create SCO or ACL connection.
  * Device _must_ be locked */
-struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 auth_type)
+struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type)
 {
 	struct hci_conn *acl;
 	struct hci_conn *sco;
@@ -340,6 +340,7 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
 	hci_conn_hold(acl);
 
 	if (acl->state == BT_OPEN || acl->state == BT_CLOSED) {
+		acl->sec_level = sec_level;
 		acl->auth_type = auth_type;
 		hci_acl_connect(acl);
 	}
@@ -385,16 +386,17 @@ int hci_conn_check_link_mode(struct hci_conn *conn)
 EXPORT_SYMBOL(hci_conn_check_link_mode);
 
 /* Authenticate remote device */
-int hci_conn_auth(struct hci_conn *conn)
+static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level)
 {
 	BT_DBG("conn %p", conn);
 
-	if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0) {
-		if (!(conn->auth_type & 0x01)) {
-			conn->auth_type |= 0x01;
-			conn->link_mode &= ~HCI_LM_AUTH;
-		}
-	}
+	if (sec_level > conn->sec_level)
+		conn->link_mode &= ~HCI_LM_AUTH;
+
+	conn->sec_level = sec_level;
+
+	if (sec_level == BT_SECURITY_HIGH)
+		conn->auth_type |= 0x01;
 
 	if (conn->link_mode & HCI_LM_AUTH)
 		return 1;
@@ -405,31 +407,42 @@ int hci_conn_auth(struct hci_conn *conn)
 		hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
 							sizeof(cp), &cp);
 	}
+
 	return 0;
 }
-EXPORT_SYMBOL(hci_conn_auth);
 
-/* Enable encryption */
-int hci_conn_encrypt(struct hci_conn *conn)
+/* Enable security */
+int hci_conn_security(struct hci_conn *conn, __u8 sec_level)
 {
 	BT_DBG("conn %p", conn);
 
+	if (sec_level == BT_SECURITY_SDP)
+		return 1;
+
+	if (sec_level == BT_SECURITY_LOW) {
+		if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0)
+			return hci_conn_auth(conn, sec_level);
+		else
+			return 1;
+	}
+
 	if (conn->link_mode & HCI_LM_ENCRYPT)
-		return hci_conn_auth(conn);
+		return hci_conn_auth(conn, sec_level);
 
 	if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 		return 0;
 
-	if (hci_conn_auth(conn)) {
+	if (hci_conn_auth(conn, sec_level)) {
 		struct hci_cp_set_conn_encrypt cp;
 		cp.handle  = cpu_to_le16(conn->handle);
 		cp.encrypt = 1;
 		hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT,
 							sizeof(cp), &cp);
 	}
+
 	return 0;
 }
-EXPORT_SYMBOL(hci_conn_encrypt);
+EXPORT_SYMBOL(hci_conn_security);
 
 /* Change link key */
 int hci_conn_change_link_key(struct hci_conn *conn)
@@ -442,12 +455,13 @@ int hci_conn_change_link_key(struct hci_conn *conn)
 		hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY,
 							sizeof(cp), &cp);
 	}
+
 	return 0;
 }
 EXPORT_SYMBOL(hci_conn_change_link_key);
 
 /* Switch role */
-int hci_conn_switch_role(struct hci_conn *conn, uint8_t role)
+int hci_conn_switch_role(struct hci_conn *conn, __u8 role)
 {
 	BT_DBG("conn %p", conn);
 
@@ -460,6 +474,7 @@ int hci_conn_switch_role(struct hci_conn *conn, uint8_t role)
 		cp.role = role;
 		hci_send_cmd(conn->hdev, HCI_OP_SWITCH_ROLE, sizeof(cp), &cp);
 	}
+
 	return 0;
 }
 EXPORT_SYMBOL(hci_conn_switch_role);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index beea9dbb6562..014fc8b320ba 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1601,7 +1601,8 @@ static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_b
 
 		if (conn->state == BT_CONFIG) {
 			if (!ev->status && hdev->ssp_mode > 0 &&
-					conn->ssp_mode > 0 && conn->out) {
+					conn->ssp_mode > 0 && conn->out &&
+					conn->sec_level != BT_SECURITY_SDP) {
 				struct hci_cp_auth_requested cp;
 				cp.handle = ev->handle;
 				hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 123efb46d3f5..eadf09231866 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -263,12 +263,17 @@ static inline int l2cap_check_link_mode(struct sock *sk)
 {
 	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
 
-	if ((l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT) ||
-				(l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE))
-		return hci_conn_encrypt(conn->hcon);
+	if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
+		return hci_conn_security(conn->hcon, BT_SECURITY_HIGH);
+
+	if (l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT)
+		return hci_conn_security(conn->hcon, BT_SECURITY_MEDIUM);
 
 	if (l2cap_pi(sk)->link_mode & L2CAP_LM_AUTH)
-		return hci_conn_auth(conn->hcon);
+		return hci_conn_security(conn->hcon, BT_SECURITY_LOW);
+
+	if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001))
+		return hci_conn_security(conn->hcon, BT_SECURITY_SDP);
 
 	return 1;
 }
@@ -803,6 +808,7 @@ static int l2cap_do_connect(struct sock *sk)
 	struct l2cap_conn *conn;
 	struct hci_conn *hcon;
 	struct hci_dev *hdev;
+	__u8 sec_level;
 	__u8 auth_type;
 	int err = 0;
 
@@ -815,21 +821,37 @@ static int l2cap_do_connect(struct sock *sk)
 
 	err = -ENOMEM;
 
-	if (l2cap_pi(sk)->link_mode & L2CAP_LM_AUTH ||
-			l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT ||
-				l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE) {
-		if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001))
-			auth_type = HCI_AT_NO_BONDING_MITM;
+	if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
+		sec_level = BT_SECURITY_HIGH;
+	else if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001))
+		sec_level = BT_SECURITY_SDP;
+	else if (l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT)
+		sec_level = BT_SECURITY_MEDIUM;
+	else
+		sec_level = BT_SECURITY_LOW;
+
+	if (sk->sk_type == SOCK_RAW) {
+		if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
+			auth_type = HCI_AT_DEDICATED_BONDING_MITM;
+		else if (l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT)
+			auth_type = HCI_AT_DEDICATED_BONDING;
 		else
-			auth_type = HCI_AT_GENERAL_BONDING_MITM;
-	} else {
-		if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001))
 			auth_type = HCI_AT_NO_BONDING;
+	} else if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001)) {
+		if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
+			auth_type = HCI_AT_NO_BONDING_MITM;
 		else
+			auth_type = HCI_AT_NO_BONDING;
+	} else {
+		if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
+			auth_type = HCI_AT_GENERAL_BONDING_MITM;
+		else if (l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT)
 			auth_type = HCI_AT_GENERAL_BONDING;
+		else
+			auth_type = HCI_AT_NO_BONDING;
 	}
 
-	hcon = hci_connect(hdev, ACL_LINK, dst, auth_type);
+	hcon = hci_connect(hdev, ACL_LINK, dst, sec_level, auth_type);
 	if (!hcon)
 		goto done;
 
@@ -1402,11 +1424,6 @@ static void l2cap_chan_ready(struct sock *sk)
 		 */
 		parent->sk_data_ready(parent, 0);
 	}
-
-	if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE) {
-		struct l2cap_conn *conn = l2cap_pi(sk)->conn;
-		hci_conn_change_link_key(conn->hcon);
-	}
 }
 
 /* Copy frame to all raw sockets on that connection */
@@ -2323,77 +2340,7 @@ static int l2cap_disconn_ind(struct hci_conn *hcon, u8 reason)
 	return 0;
 }
 
-static int l2cap_auth_cfm(struct hci_conn *hcon, u8 status)
-{
-	struct l2cap_chan_list *l;
-	struct l2cap_conn *conn = hcon->l2cap_data;
-	struct sock *sk;
-
-	if (!conn)
-		return 0;
-
-	l = &conn->chan_list;
-
-	BT_DBG("conn %p", conn);
-
-	read_lock(&l->lock);
-
-	for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
-		struct l2cap_pinfo *pi = l2cap_pi(sk);
-
-		bh_lock_sock(sk);
-
-		if ((pi->link_mode & (L2CAP_LM_ENCRYPT | L2CAP_LM_SECURE)) &&
-					!(hcon->link_mode & HCI_LM_ENCRYPT) &&
-								!status) {
-			bh_unlock_sock(sk);
-			continue;
-		}
-
-		if (sk->sk_state == BT_CONNECT) {
-			if (!status) {
-				struct l2cap_conn_req req;
-				req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
-				req.psm  = l2cap_pi(sk)->psm;
-
-				l2cap_pi(sk)->ident = l2cap_get_ident(conn);
-
-				l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
-					L2CAP_CONN_REQ, sizeof(req), &req);
-			} else {
-				l2cap_sock_clear_timer(sk);
-				l2cap_sock_set_timer(sk, HZ / 10);
-			}
-		} else if (sk->sk_state == BT_CONNECT2) {
-			struct l2cap_conn_rsp rsp;
-			__u16 result;
-
-			if (!status) {
-				sk->sk_state = BT_CONFIG;
-				result = L2CAP_CR_SUCCESS;
-			} else {
-				sk->sk_state = BT_DISCONN;
-				l2cap_sock_set_timer(sk, HZ / 10);
-				result = L2CAP_CR_SEC_BLOCK;
-			}
-
-			rsp.scid   = cpu_to_le16(l2cap_pi(sk)->dcid);
-			rsp.dcid   = cpu_to_le16(l2cap_pi(sk)->scid);
-			rsp.result = cpu_to_le16(result);
-			rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
-			l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
-					L2CAP_CONN_RSP, sizeof(rsp), &rsp);
-		}
-
-		bh_unlock_sock(sk);
-	}
-
-	read_unlock(&l->lock);
-
-	return 0;
-}
-
-static int l2cap_encrypt_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
+static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 {
 	struct l2cap_chan_list *l;
 	struct l2cap_conn *conn = hcon->l2cap_data;
@@ -2413,10 +2360,10 @@ static int l2cap_encrypt_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 
 		bh_lock_sock(sk);
 
-		if ((pi->link_mode & (L2CAP_LM_ENCRYPT | L2CAP_LM_SECURE)) &&
+		if (!status && encrypt == 0x00 &&
+				(pi->link_mode & L2CAP_LM_SECURE) &&
 					(sk->sk_state == BT_CONNECTED ||
-						sk->sk_state == BT_CONFIG) &&
-						!status && encrypt == 0x00) {
+						sk->sk_state == BT_CONFIG)) {
 			__l2cap_sock_close(sk, ECONNREFUSED);
 			bh_unlock_sock(sk);
 			continue;
@@ -2608,8 +2555,7 @@ static struct hci_proto l2cap_hci_proto = {
 	.connect_ind	= l2cap_connect_ind,
 	.connect_cfm	= l2cap_connect_cfm,
 	.disconn_ind	= l2cap_disconn_ind,
-	.auth_cfm	= l2cap_auth_cfm,
-	.encrypt_cfm	= l2cap_encrypt_cfm,
+	.security_cfm	= l2cap_security_cfm,
 	.recv_acldata	= l2cap_recv_acldata
 };
 
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index edee49e00fbf..68f70c5270c6 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -226,16 +226,18 @@ static int rfcomm_l2sock_create(struct socket **sock)
 static inline int rfcomm_check_link_mode(struct rfcomm_dlc *d)
 {
 	struct sock *sk = d->session->sock->sk;
+	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
 
-	if (d->link_mode & (RFCOMM_LM_ENCRYPT | RFCOMM_LM_SECURE)) {
-		if (!hci_conn_encrypt(l2cap_pi(sk)->conn->hcon))
-			return 1;
-	} else if (d->link_mode & RFCOMM_LM_AUTH) {
-		if (!hci_conn_auth(l2cap_pi(sk)->conn->hcon))
-			return 1;
-	}
+	if (d->link_mode & RFCOMM_LM_SECURE)
+		return hci_conn_security(conn->hcon, BT_SECURITY_HIGH);
 
-	return 0;
+	if (d->link_mode & RFCOMM_LM_ENCRYPT)
+		return hci_conn_security(conn->hcon, BT_SECURITY_MEDIUM);
+
+	if (d->link_mode & RFCOMM_LM_AUTH)
+		return hci_conn_security(conn->hcon, BT_SECURITY_LOW);
+
+	return 1;
 }
 
 /* ---- RFCOMM DLCs ---- */
@@ -389,9 +391,9 @@ static int __rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
 
 	if (s->state == BT_CONNECTED) {
 		if (rfcomm_check_link_mode(d))
-			set_bit(RFCOMM_AUTH_PENDING, &d->flags);
-		else
 			rfcomm_send_pn(s, 1, d);
+		else
+			set_bit(RFCOMM_AUTH_PENDING, &d->flags);
 	}
 
 	rfcomm_dlc_set_timer(d, RFCOMM_CONN_TIMEOUT);
@@ -1199,14 +1201,14 @@ void rfcomm_dlc_accept(struct rfcomm_dlc *d)
 static void rfcomm_check_accept(struct rfcomm_dlc *d)
 {
 	if (rfcomm_check_link_mode(d)) {
-		set_bit(RFCOMM_AUTH_PENDING, &d->flags);
-		rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
-	} else {
 		if (d->defer_setup) {
 			set_bit(RFCOMM_DEFER_SETUP, &d->flags);
 			rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
 		} else
 			rfcomm_dlc_accept(d);
+	} else {
+		set_bit(RFCOMM_AUTH_PENDING, &d->flags);
+		rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
 	}
 }
 
@@ -1659,10 +1661,11 @@ static void rfcomm_process_connect(struct rfcomm_session *s)
 		if (d->state == BT_CONFIG) {
 			d->mtu = s->mtu;
 			if (rfcomm_check_link_mode(d)) {
+				rfcomm_send_pn(s, 1, d);
+			} else {
 				set_bit(RFCOMM_AUTH_PENDING, &d->flags);
 				rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
-			} else
-				rfcomm_send_pn(s, 1, d);
+			}
 		}
 	}
 }
@@ -1973,42 +1976,7 @@ static int rfcomm_run(void *unused)
 	return 0;
 }
 
-static void rfcomm_auth_cfm(struct hci_conn *conn, u8 status)
-{
-	struct rfcomm_session *s;
-	struct rfcomm_dlc *d;
-	struct list_head *p, *n;
-
-	BT_DBG("conn %p status 0x%02x", conn, status);
-
-	s = rfcomm_session_get(&conn->hdev->bdaddr, &conn->dst);
-	if (!s)
-		return;
-
-	rfcomm_session_hold(s);
-
-	list_for_each_safe(p, n, &s->dlcs) {
-		d = list_entry(p, struct rfcomm_dlc, list);
-
-		if ((d->link_mode & (RFCOMM_LM_ENCRYPT | RFCOMM_LM_SECURE)) &&
-				!(conn->link_mode & HCI_LM_ENCRYPT) && !status)
-			continue;
-
-		if (!test_and_clear_bit(RFCOMM_AUTH_PENDING, &d->flags))
-			continue;
-
-		if (!status)
-			set_bit(RFCOMM_AUTH_ACCEPT, &d->flags);
-		else
-			set_bit(RFCOMM_AUTH_REJECT, &d->flags);
-	}
-
-	rfcomm_session_put(s);
-
-	rfcomm_schedule(RFCOMM_SCHED_AUTH);
-}
-
-static void rfcomm_encrypt_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
+static void rfcomm_security_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
 {
 	struct rfcomm_session *s;
 	struct rfcomm_dlc *d;
@@ -2025,10 +1993,10 @@ static void rfcomm_encrypt_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
 	list_for_each_safe(p, n, &s->dlcs) {
 		d = list_entry(p, struct rfcomm_dlc, list);
 
-		if ((d->link_mode & (RFCOMM_LM_ENCRYPT | RFCOMM_LM_SECURE)) &&
+		if (!status && encrypt == 0x00 &&
+				(d->link_mode & RFCOMM_LM_ENCRYPT) &&
 					(d->state == BT_CONNECTED ||
-						d->state == BT_CONFIG) &&
-						!status && encrypt == 0x00) {
+						d->state == BT_CONFIG)) {
 			__rfcomm_dlc_close(d, ECONNREFUSED);
 			continue;
 		}
@@ -2036,7 +2004,7 @@ static void rfcomm_encrypt_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
 		if (!test_and_clear_bit(RFCOMM_AUTH_PENDING, &d->flags))
 			continue;
 
-		if (!status && encrypt)
+		if (!status)
 			set_bit(RFCOMM_AUTH_ACCEPT, &d->flags);
 		else
 			set_bit(RFCOMM_AUTH_REJECT, &d->flags);
@@ -2049,8 +2017,7 @@ static void rfcomm_encrypt_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
 
 static struct hci_cb rfcomm_cb = {
 	.name		= "RFCOMM",
-	.auth_cfm	= rfcomm_auth_cfm,
-	.encrypt_cfm	= rfcomm_encrypt_cfm
+	.security_cfm	= rfcomm_security_cfm
 };
 
 static ssize_t rfcomm_dlc_sysfs_show(struct class *dev, char *buf)
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 71df982c09c9..7f10f97cd697 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -195,7 +195,7 @@ static int sco_connect(struct sock *sk)
 	else
 		type = SCO_LINK;
 
-	hcon = hci_connect(hdev, type, dst, HCI_AT_NO_BONDING);
+	hcon = hci_connect(hdev, type, dst, BT_SECURITY_LOW, HCI_AT_NO_BONDING);
 	if (!hcon)
 		goto done;
 
-- 
cgit v1.2.3


From 2af6b9d518ddfbc4d6990d5f9c9b1a05341c1cef Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 15 Jan 2009 21:58:38 +0100
Subject: Bluetooth: Replace L2CAP link mode with security level

Change the L2CAP internals to use the new security levels and remove
the link mode details.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h |   5 +-
 net/bluetooth/l2cap.c         | 160 +++++++++++++++++++++++++++++-------------
 2 files changed, 113 insertions(+), 52 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 73e115bc12dd..29f720e6188a 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -237,8 +237,9 @@ struct l2cap_pinfo {
 	__u16		imtu;
 	__u16		omtu;
 	__u16		flush_to;
-
-	__u32		link_mode;
+	__u8            sec_level;
+	__u8		role_switch;
+	__u8            force_reliable;
 
 	__u8		conf_req[64];
 	__u8		conf_len;
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index eadf09231866..e899a9371c00 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -78,8 +78,7 @@ static void l2cap_sock_timeout(unsigned long arg)
 	bh_lock_sock(sk);
 
 	if (sk->sk_state == BT_CONNECT &&
-			(l2cap_pi(sk)->link_mode & (L2CAP_LM_AUTH |
-					L2CAP_LM_ENCRYPT | L2CAP_LM_SECURE)))
+				l2cap_pi(sk)->sec_level != BT_SECURITY_SDP)
 		reason = ECONNREFUSED;
 	else
 		reason = ETIMEDOUT;
@@ -259,23 +258,11 @@ static void l2cap_chan_del(struct sock *sk, int err)
 }
 
 /* Service level security */
-static inline int l2cap_check_link_mode(struct sock *sk)
+static inline int l2cap_check_security(struct sock *sk)
 {
 	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
 
-	if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
-		return hci_conn_security(conn->hcon, BT_SECURITY_HIGH);
-
-	if (l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT)
-		return hci_conn_security(conn->hcon, BT_SECURITY_MEDIUM);
-
-	if (l2cap_pi(sk)->link_mode & L2CAP_LM_AUTH)
-		return hci_conn_security(conn->hcon, BT_SECURITY_LOW);
-
-	if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001))
-		return hci_conn_security(conn->hcon, BT_SECURITY_SDP);
-
-	return 1;
+	return hci_conn_security(conn->hcon, l2cap_pi(sk)->sec_level);
 }
 
 static inline u8 l2cap_get_ident(struct l2cap_conn *conn)
@@ -317,7 +304,7 @@ static void l2cap_do_start(struct sock *sk)
 	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
 
 	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) {
-		if (l2cap_check_link_mode(sk)) {
+		if (l2cap_check_security(sk)) {
 			struct l2cap_conn_req req;
 			req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
 			req.psm  = l2cap_pi(sk)->psm;
@@ -361,7 +348,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 		}
 
 		if (sk->sk_state == BT_CONNECT) {
-			if (l2cap_check_link_mode(sk)) {
+			if (l2cap_check_security(sk)) {
 				struct l2cap_conn_req req;
 				req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
 				req.psm  = l2cap_pi(sk)->psm;
@@ -376,7 +363,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 			rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
 			rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
 
-			if (l2cap_check_link_mode(sk)) {
+			if (l2cap_check_security(sk)) {
 				if (bt_sk(sk)->defer_setup) {
 					struct sock *parent = bt_sk(sk)->parent;
 					rsp.result = cpu_to_le16(L2CAP_CR_PEND);
@@ -439,7 +426,7 @@ static void l2cap_conn_unreliable(struct l2cap_conn *conn, int err)
 	read_lock(&l->lock);
 
 	for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
-		if (l2cap_pi(sk)->link_mode & L2CAP_LM_RELIABLE)
+		if (l2cap_pi(sk)->force_reliable)
 			sk->sk_err = err;
 	}
 
@@ -690,11 +677,15 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
 
 		pi->imtu = l2cap_pi(parent)->imtu;
 		pi->omtu = l2cap_pi(parent)->omtu;
-		pi->link_mode = l2cap_pi(parent)->link_mode;
+		pi->sec_level = l2cap_pi(parent)->sec_level;
+		pi->role_switch = l2cap_pi(parent)->role_switch;
+		pi->force_reliable = l2cap_pi(parent)->force_reliable;
 	} else {
 		pi->imtu = L2CAP_DEFAULT_MTU;
 		pi->omtu = 0;
-		pi->link_mode = 0;
+		pi->sec_level = BT_SECURITY_LOW;
+		pi->role_switch = 0;
+		pi->force_reliable = 0;
 	}
 
 	/* Default config options */
@@ -792,6 +783,9 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_
 		l2cap_pi(sk)->psm   = la->l2_psm;
 		l2cap_pi(sk)->sport = la->l2_psm;
 		sk->sk_state = BT_BOUND;
+
+		if (btohs(la->l2_psm) == 0x0001)
+			l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
 	}
 
 	write_unlock_bh(&l2cap_sk_list.lock);
@@ -808,7 +802,6 @@ static int l2cap_do_connect(struct sock *sk)
 	struct l2cap_conn *conn;
 	struct hci_conn *hcon;
 	struct hci_dev *hdev;
-	__u8 sec_level;
 	__u8 auth_type;
 	int err = 0;
 
@@ -821,37 +814,39 @@ static int l2cap_do_connect(struct sock *sk)
 
 	err = -ENOMEM;
 
-	if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
-		sec_level = BT_SECURITY_HIGH;
-	else if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001))
-		sec_level = BT_SECURITY_SDP;
-	else if (l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT)
-		sec_level = BT_SECURITY_MEDIUM;
-	else
-		sec_level = BT_SECURITY_LOW;
-
 	if (sk->sk_type == SOCK_RAW) {
-		if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
+		switch (l2cap_pi(sk)->sec_level) {
+		case BT_SECURITY_HIGH:
 			auth_type = HCI_AT_DEDICATED_BONDING_MITM;
-		else if (l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT)
+			break;
+		case BT_SECURITY_MEDIUM:
 			auth_type = HCI_AT_DEDICATED_BONDING;
-		else
+			break;
+		default:
 			auth_type = HCI_AT_NO_BONDING;
+			break;
+		}
 	} else if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001)) {
-		if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
+		if (l2cap_pi(sk)->sec_level == BT_SECURITY_HIGH)
 			auth_type = HCI_AT_NO_BONDING_MITM;
 		else
 			auth_type = HCI_AT_NO_BONDING;
 	} else {
-		if (l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE)
+		switch (l2cap_pi(sk)->sec_level) {
+		case BT_SECURITY_HIGH:
 			auth_type = HCI_AT_GENERAL_BONDING_MITM;
-		else if (l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT)
+			break;
+		case BT_SECURITY_MEDIUM:
 			auth_type = HCI_AT_GENERAL_BONDING;
-		else
+			break;
+		default:
 			auth_type = HCI_AT_NO_BONDING;
+			break;
+		}
 	}
 
-	hcon = hci_connect(hdev, ACL_LINK, dst, sec_level, auth_type);
+	hcon = hci_connect(hdev, ACL_LINK, dst,
+					l2cap_pi(sk)->sec_level, auth_type);
 	if (!hcon)
 		goto done;
 
@@ -1219,7 +1214,15 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
 			break;
 		}
 
-		l2cap_pi(sk)->link_mode = opt;
+		if (opt & L2CAP_LM_AUTH)
+			l2cap_pi(sk)->sec_level = BT_SECURITY_LOW;
+		if (opt & L2CAP_LM_ENCRYPT)
+			l2cap_pi(sk)->sec_level = BT_SECURITY_MEDIUM;
+		if (opt & L2CAP_LM_SECURE)
+			l2cap_pi(sk)->sec_level = BT_SECURITY_HIGH;
+
+		l2cap_pi(sk)->role_switch    = (opt & L2CAP_LM_MASTER);
+		l2cap_pi(sk)->force_reliable = (opt & L2CAP_LM_RELIABLE);
 		break;
 
 	default:
@@ -1234,7 +1237,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
 static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen)
 {
 	struct sock *sk = sock->sk;
-	int err = 0;
+	struct bt_security sec;
+	int len, err = 0;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -1245,6 +1249,24 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 	lock_sock(sk);
 
 	switch (optname) {
+	case BT_SECURITY:
+		sec.level = BT_SECURITY_LOW;
+
+		len = min_t(unsigned int, sizeof(sec), optlen);
+		if (copy_from_user((char *) &sec, optval, len)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (sec.level < BT_SECURITY_LOW ||
+					sec.level > BT_SECURITY_HIGH) {
+			err = -EINVAL;
+			break;
+		}
+
+		l2cap_pi(sk)->sec_level = sec.level;
+		break;
+
 	case BT_DEFER_SETUP:
 		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
 			err = -EINVAL;
@@ -1274,6 +1296,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
 	struct l2cap_options opts;
 	struct l2cap_conninfo cinfo;
 	int len, err = 0;
+	u32 opt;
 
 	BT_DBG("sk %p", sk);
 
@@ -1296,7 +1319,29 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
 		break;
 
 	case L2CAP_LM:
-		if (put_user(l2cap_pi(sk)->link_mode, (u32 __user *) optval))
+		switch (l2cap_pi(sk)->sec_level) {
+		case BT_SECURITY_LOW:
+			opt = L2CAP_LM_AUTH;
+			break;
+		case BT_SECURITY_MEDIUM:
+			opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT;
+			break;
+		case BT_SECURITY_HIGH:
+			opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT |
+							L2CAP_LM_SECURE;
+			break;
+		default:
+			opt = 0;
+			break;
+		}
+
+		if (l2cap_pi(sk)->role_switch)
+			opt |= L2CAP_LM_MASTER;
+
+		if (l2cap_pi(sk)->force_reliable)
+			opt |= L2CAP_LM_RELIABLE;
+
+		if (put_user(opt, (u32 __user *) optval))
 			err = -EFAULT;
 		break;
 
@@ -1329,6 +1374,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
 static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
 {
 	struct sock *sk = sock->sk;
+	struct bt_security sec;
 	int len, err = 0;
 
 	BT_DBG("sk %p", sk);
@@ -1342,6 +1388,15 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
 	lock_sock(sk);
 
 	switch (optname) {
+	case BT_SECURITY:
+		sec.level = l2cap_pi(sk)->sec_level;
+
+		len = min_t(unsigned int, len, sizeof(sec));
+		if (copy_to_user(optval, (char *) &sec, len))
+			err = -EFAULT;
+
+		break;
+
 	case BT_DEFER_SETUP:
 		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
 			err = -EINVAL;
@@ -1771,7 +1826,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	l2cap_pi(sk)->ident = cmd->ident;
 
 	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) {
-		if (l2cap_check_link_mode(sk)) {
+		if (l2cap_check_security(sk)) {
 			if (bt_sk(sk)->defer_setup) {
 				sk->sk_state = BT_CONNECT2;
 				result = L2CAP_CR_PEND;
@@ -2299,10 +2354,15 @@ static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 			continue;
 
 		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr)) {
-			lm1 |= (HCI_LM_ACCEPT | l2cap_pi(sk)->link_mode);
+			lm1 |= HCI_LM_ACCEPT;
+			if (l2cap_pi(sk)->role_switch)
+				lm1 |= HCI_LM_MASTER;
 			exact++;
-		} else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
-			lm2 |= (HCI_LM_ACCEPT | l2cap_pi(sk)->link_mode);
+		} else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+			lm2 |= HCI_LM_ACCEPT;
+			if (l2cap_pi(sk)->role_switch)
+				lm2 |= HCI_LM_MASTER;
+		}
 	}
 	read_unlock(&l2cap_sk_list.lock);
 
@@ -2361,7 +2421,7 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 		bh_lock_sock(sk);
 
 		if (!status && encrypt == 0x00 &&
-				(pi->link_mode & L2CAP_LM_SECURE) &&
+				pi->sec_level == BT_SECURITY_HIGH &&
 					(sk->sk_state == BT_CONNECTED ||
 						sk->sk_state == BT_CONFIG)) {
 			__l2cap_sock_close(sk, ECONNREFUSED);
@@ -2510,10 +2570,10 @@ static ssize_t l2cap_sysfs_show(struct class *dev, char *buf)
 	sk_for_each(sk, node, &l2cap_sk_list.head) {
 		struct l2cap_pinfo *pi = l2cap_pi(sk);
 
-		str += sprintf(str, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d 0x%x\n",
+		str += sprintf(str, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d %d\n",
 				batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst),
 				sk->sk_state, btohs(pi->psm), pi->scid, pi->dcid,
-				pi->imtu, pi->omtu, pi->link_mode);
+				pi->imtu, pi->omtu, pi->sec_level);
 	}
 
 	read_unlock_bh(&l2cap_sk_list.lock);
-- 
cgit v1.2.3


From 9f2c8a03fbb3048cf38b158f87aa0c3c09bca084 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 15 Jan 2009 21:58:40 +0100
Subject: Bluetooth: Replace RFCOMM link mode with security level

Change the RFCOMM internals to use the new security levels and remove
the link mode details.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/rfcomm.h |  7 ++--
 net/bluetooth/rfcomm/core.c    | 28 ++++------------
 net/bluetooth/rfcomm/sock.c    | 75 ++++++++++++++++++++++++++++++++++++++----
 3 files changed, 79 insertions(+), 31 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index 71b45f459687..bda68d833ddd 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -183,8 +183,8 @@ struct rfcomm_dlc {
 	u8            remote_v24_sig;
 	u8            mscex;
 	u8            out;
-
-	u32           link_mode;
+	u8            sec_level;
+	u8            role_switch;
 	u32           defer_setup;
 
 	uint          mtu;
@@ -307,7 +307,8 @@ struct rfcomm_pinfo {
 	struct bt_sock bt;
 	struct rfcomm_dlc   *dlc;
 	u8     channel;
-	u32    link_mode;
+	u8     sec_level;
+	u8     role_switch;
 };
 
 int  rfcomm_init_sockets(void);
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 68f70c5270c6..db83f92d274c 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -223,21 +223,11 @@ static int rfcomm_l2sock_create(struct socket **sock)
 	return err;
 }
 
-static inline int rfcomm_check_link_mode(struct rfcomm_dlc *d)
+static inline int rfcomm_check_security(struct rfcomm_dlc *d)
 {
 	struct sock *sk = d->session->sock->sk;
-	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
 
-	if (d->link_mode & RFCOMM_LM_SECURE)
-		return hci_conn_security(conn->hcon, BT_SECURITY_HIGH);
-
-	if (d->link_mode & RFCOMM_LM_ENCRYPT)
-		return hci_conn_security(conn->hcon, BT_SECURITY_MEDIUM);
-
-	if (d->link_mode & RFCOMM_LM_AUTH)
-		return hci_conn_security(conn->hcon, BT_SECURITY_LOW);
-
-	return 1;
+	return hci_conn_security(l2cap_pi(sk)->conn->hcon, d->sec_level);
 }
 
 /* ---- RFCOMM DLCs ---- */
@@ -390,7 +380,7 @@ static int __rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
 	d->cfc = (s->cfc == RFCOMM_CFC_UNKNOWN) ? 0 : s->cfc;
 
 	if (s->state == BT_CONNECTED) {
-		if (rfcomm_check_link_mode(d))
+		if (rfcomm_check_security(d))
 			rfcomm_send_pn(s, 1, d);
 		else
 			set_bit(RFCOMM_AUTH_PENDING, &d->flags);
@@ -1192,7 +1182,7 @@ void rfcomm_dlc_accept(struct rfcomm_dlc *d)
 	d->state_change(d, 0);
 	rfcomm_dlc_unlock(d);
 
-	if (d->link_mode & RFCOMM_LM_MASTER)
+	if (d->role_switch)
 		hci_conn_switch_role(l2cap_pi(sk)->conn->hcon, 0x00);
 
 	rfcomm_send_msc(d->session, 1, d->dlci, d->v24_sig);
@@ -1200,7 +1190,7 @@ void rfcomm_dlc_accept(struct rfcomm_dlc *d)
 
 static void rfcomm_check_accept(struct rfcomm_dlc *d)
 {
-	if (rfcomm_check_link_mode(d)) {
+	if (rfcomm_check_security(d)) {
 		if (d->defer_setup) {
 			set_bit(RFCOMM_DEFER_SETUP, &d->flags);
 			rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
@@ -1660,7 +1650,7 @@ static void rfcomm_process_connect(struct rfcomm_session *s)
 		d = list_entry(p, struct rfcomm_dlc, list);
 		if (d->state == BT_CONFIG) {
 			d->mtu = s->mtu;
-			if (rfcomm_check_link_mode(d)) {
+			if (rfcomm_check_security(d)) {
 				rfcomm_send_pn(s, 1, d);
 			} else {
 				set_bit(RFCOMM_AUTH_PENDING, &d->flags);
@@ -1748,10 +1738,6 @@ static inline void rfcomm_process_dlcs(struct rfcomm_session *s)
 				} else
 					rfcomm_dlc_accept(d);
 			}
-			if (d->link_mode & RFCOMM_LM_SECURE) {
-				struct sock *sk = s->sock->sk;
-				hci_conn_change_link_key(l2cap_pi(sk)->conn->hcon);
-			}
 			continue;
 		} else if (test_and_clear_bit(RFCOMM_AUTH_REJECT, &d->flags)) {
 			rfcomm_dlc_clear_timer(d);
@@ -1994,7 +1980,7 @@ static void rfcomm_security_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
 		d = list_entry(p, struct rfcomm_dlc, list);
 
 		if (!status && encrypt == 0x00 &&
-				(d->link_mode & RFCOMM_LM_ENCRYPT) &&
+				d->sec_level == BT_SECURITY_HIGH &&
 					(d->state == BT_CONNECTED ||
 						d->state == BT_CONFIG)) {
 			__rfcomm_dlc_close(d, ECONNREFUSED);
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index d37a829a81e4..9986ef35c890 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -261,14 +261,19 @@ static void rfcomm_sock_init(struct sock *sk, struct sock *parent)
 
 	if (parent) {
 		sk->sk_type = parent->sk_type;
-		pi->link_mode = rfcomm_pi(parent)->link_mode;
 		pi->dlc->defer_setup = bt_sk(parent)->defer_setup;
+
+		pi->sec_level = rfcomm_pi(parent)->sec_level;
+		pi->role_switch = rfcomm_pi(parent)->role_switch;
 	} else {
-		pi->link_mode = 0;
 		pi->dlc->defer_setup = 0;
+
+		pi->sec_level = BT_SECURITY_LOW;
+		pi->role_switch = 0;
 	}
 
-	pi->dlc->link_mode = pi->link_mode;
+	pi->dlc->sec_level = pi->sec_level;
+	pi->dlc->role_switch = pi->role_switch;
 }
 
 static struct proto rfcomm_proto = {
@@ -408,7 +413,8 @@ static int rfcomm_sock_connect(struct socket *sock, struct sockaddr *addr, int a
 	bacpy(&bt_sk(sk)->dst, &sa->rc_bdaddr);
 	rfcomm_pi(sk)->channel = sa->rc_channel;
 
-	d->link_mode = rfcomm_pi(sk)->link_mode;
+	d->sec_level = rfcomm_pi(sk)->sec_level;
+	d->role_switch = rfcomm_pi(sk)->role_switch;
 
 	err = rfcomm_dlc_open(d, &bt_sk(sk)->src, &sa->rc_bdaddr, sa->rc_channel);
 	if (!err)
@@ -741,7 +747,14 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u
 			break;
 		}
 
-		rfcomm_pi(sk)->link_mode = opt;
+		if (opt & RFCOMM_LM_AUTH)
+			rfcomm_pi(sk)->sec_level = BT_SECURITY_LOW;
+		if (opt & RFCOMM_LM_ENCRYPT)
+			rfcomm_pi(sk)->sec_level = BT_SECURITY_MEDIUM;
+		if (opt & RFCOMM_LM_SECURE)
+			rfcomm_pi(sk)->sec_level = BT_SECURITY_HIGH;
+
+		rfcomm_pi(sk)->role_switch = (opt & RFCOMM_LM_MASTER);
 		break;
 
 	default:
@@ -756,7 +769,8 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u
 static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen)
 {
 	struct sock *sk = sock->sk;
-	int err = 0;
+	struct bt_security sec;
+	int len, err = 0;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -767,6 +781,23 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
 	lock_sock(sk);
 
 	switch (optname) {
+	case BT_SECURITY:
+		sec.level = BT_SECURITY_LOW;
+
+		len = min_t(unsigned int, sizeof(sec), optlen);
+		if (copy_from_user((char *) &sec, optval, len)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (sec.level > BT_SECURITY_HIGH) {
+			err = -EINVAL;
+			break;
+		}
+
+		rfcomm_pi(sk)->sec_level = sec.level;
+		break;
+
 	case BT_DEFER_SETUP:
 		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
 			err = -EINVAL;
@@ -796,6 +827,7 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
 	struct sock *l2cap_sk;
 	struct rfcomm_conninfo cinfo;
 	int len, err = 0;
+	u32 opt;
 
 	BT_DBG("sk %p", sk);
 
@@ -806,7 +838,26 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
 
 	switch (optname) {
 	case RFCOMM_LM:
-		if (put_user(rfcomm_pi(sk)->link_mode, (u32 __user *) optval))
+		switch (rfcomm_pi(sk)->sec_level) {
+		case BT_SECURITY_LOW:
+			opt = RFCOMM_LM_AUTH;
+			break;
+		case BT_SECURITY_MEDIUM:
+			opt = RFCOMM_LM_AUTH | RFCOMM_LM_ENCRYPT;
+			break;
+		case BT_SECURITY_HIGH:
+			opt = RFCOMM_LM_AUTH | RFCOMM_LM_ENCRYPT |
+							RFCOMM_LM_SECURE;
+			break;
+		default:
+			opt = 0;
+			break;
+		}
+
+		if (rfcomm_pi(sk)->role_switch)
+			opt |= RFCOMM_LM_MASTER;
+
+		if (put_user(opt, (u32 __user *) optval))
 			err = -EFAULT;
 		break;
 
@@ -840,6 +891,7 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
 static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
 {
 	struct sock *sk = sock->sk;
+	struct bt_security sec;
 	int len, err = 0;
 
 	BT_DBG("sk %p", sk);
@@ -853,6 +905,15 @@ static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, c
 	lock_sock(sk);
 
 	switch (optname) {
+	case BT_SECURITY:
+		sec.level = rfcomm_pi(sk)->sec_level;
+
+		len = min_t(unsigned int, len, sizeof(sec));
+		if (copy_to_user(optval, (char *) &sec, len))
+			err = -EFAULT;
+
+		break;
+
 	case BT_DEFER_SETUP:
 		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
 			err = -EINVAL;
-- 
cgit v1.2.3


From 8c84b83076b5062f59b6167cdda90d9e5124aa71 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 16 Jan 2009 08:17:51 +0100
Subject: Bluetooth: Pause RFCOMM TX when encryption drops

A role switch with devices following the Bluetooth pre-2.1 standards
or without Encryption Pause and Resume support is not possible if
encryption is enabled. Most newer headsets require the role switch,
but also require that the connection is encrypted.

For connections with a high security mode setting, the link will be
immediately dropped. When the connection uses medium security mode
setting, then a grace period is introduced where the TX is halted and
the remote device gets a change to re-enable encryption after the
role switch. If not re-enabled the link will be dropped.

Based on initial work by Ville Tervo <ville.tervo@nokia.com>

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/rfcomm.h |  9 +++++----
 net/bluetooth/rfcomm/core.c    | 23 +++++++++++++++++------
 2 files changed, 22 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index bda68d833ddd..80072611d26a 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -204,10 +204,11 @@ struct rfcomm_dlc {
 #define RFCOMM_TX_THROTTLED 1
 #define RFCOMM_TIMED_OUT    2
 #define RFCOMM_MSC_PENDING  3
-#define RFCOMM_AUTH_PENDING 4
-#define RFCOMM_AUTH_ACCEPT  5
-#define RFCOMM_AUTH_REJECT  6
-#define RFCOMM_DEFER_SETUP  7
+#define RFCOMM_SEC_PENDING  4
+#define RFCOMM_AUTH_PENDING 5
+#define RFCOMM_AUTH_ACCEPT  6
+#define RFCOMM_AUTH_REJECT  7
+#define RFCOMM_DEFER_SETUP  8
 
 /* Scheduling flags and events */
 #define RFCOMM_SCHED_STATE  0
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index db83f92d274c..dafaee91cdfb 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -1979,12 +1979,23 @@ static void rfcomm_security_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
 	list_for_each_safe(p, n, &s->dlcs) {
 		d = list_entry(p, struct rfcomm_dlc, list);
 
-		if (!status && encrypt == 0x00 &&
-				d->sec_level == BT_SECURITY_HIGH &&
-					(d->state == BT_CONNECTED ||
-						d->state == BT_CONFIG)) {
-			__rfcomm_dlc_close(d, ECONNREFUSED);
-			continue;
+		if (test_and_clear_bit(RFCOMM_SEC_PENDING, &d->flags)) {
+			rfcomm_dlc_clear_timer(d);
+			if (status || encrypt == 0x00) {
+				__rfcomm_dlc_close(d, ECONNREFUSED);
+				continue;
+			}
+		}
+
+		if (d->state == BT_CONNECTED && !status && encrypt == 0x00) {
+			if (d->sec_level == BT_SECURITY_MEDIUM) {
+				set_bit(RFCOMM_SEC_PENDING, &d->flags);
+				rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+				continue;
+			} else if (d->sec_level == BT_SECURITY_HIGH) {
+				__rfcomm_dlc_close(d, ECONNREFUSED);
+				continue;
+			}
 		}
 
 		if (!test_and_clear_bit(RFCOMM_AUTH_PENDING, &d->flags))
-- 
cgit v1.2.3


From efc7688b557dd1be10eead7399b315efcb1dbc74 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 6 Feb 2009 09:13:37 +0100
Subject: Bluetooth: Add SCO fallback for eSCO connection attempts

When attempting to setup eSCO connections it can happen that some link
manager implementations fail to properly negotiate the eSCO parameters
and thus fail the eSCO setup. Normally the link manager is responsible
for the negotiation of the parameters and actually fallback to SCO if
no agreement can be reached. In cases where the link manager is just too
stupid, then at least try to establish a SCO link if eSCO fails.

For the Bluetooth devices with EDR support this includes handling packet
types of EDR basebands. This is particular tricky since for the EDR the
logic of enabling/disabling one specific packet type is turned around.
This fix contains an extra bitmask to disable eSCO EDR packet when
trying to fallback to a SCO connection.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h |  8 ++++++++
 net/bluetooth/hci_conn.c    |  9 +++++++--
 net/bluetooth/hci_event.c   | 16 ++++++++++++++++
 3 files changed, 31 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 3645139e68c7..f69f015bbcc0 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -133,8 +133,13 @@ enum {
 #define ESCO_EV3	0x0008
 #define ESCO_EV4	0x0010
 #define ESCO_EV5	0x0020
+#define ESCO_2EV3	0x0040
+#define ESCO_3EV3	0x0080
+#define ESCO_2EV5	0x0100
+#define ESCO_3EV5	0x0200
 
 #define SCO_ESCO_MASK  (ESCO_HV1 | ESCO_HV2 | ESCO_HV3)
+#define EDR_ESCO_MASK  (ESCO_2EV3 | ESCO_3EV3 | ESCO_2EV5 | ESCO_3EV5)
 
 /* ACL flags */
 #define ACL_CONT		0x01
@@ -176,6 +181,9 @@ enum {
 #define LMP_EV5		0x02
 
 #define LMP_SNIFF_SUBR	0x02
+#define LMP_EDR_ESCO_2M	0x20
+#define LMP_EDR_ESCO_3M	0x40
+#define LMP_EDR_3S_ESCO	0x80
 
 #define LMP_SIMPLE_PAIR	0x08
 
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 98f97a1e9bbb..2435e830ba60 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -123,6 +123,8 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle)
 	conn->state = BT_CONNECT;
 	conn->out = 1;
 
+	conn->attempt++;
+
 	cp.handle   = cpu_to_le16(handle);
 	cp.pkt_type = cpu_to_le16(conn->pkt_type);
 
@@ -139,6 +141,8 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
 	conn->state = BT_CONNECT;
 	conn->out = 1;
 
+	conn->attempt++;
+
 	cp.handle   = cpu_to_le16(handle);
 	cp.pkt_type = cpu_to_le16(conn->pkt_type);
 
@@ -216,12 +220,13 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
 		break;
 	case SCO_LINK:
 		if (lmp_esco_capable(hdev))
-			conn->pkt_type = hdev->esco_type & SCO_ESCO_MASK;
+			conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
+					(hdev->esco_type & EDR_ESCO_MASK);
 		else
 			conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK;
 		break;
 	case ESCO_LINK:
-		conn->pkt_type = hdev->esco_type;
+		conn->pkt_type = hdev->esco_type & ~EDR_ESCO_MASK;
 		break;
 	}
 
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 014fc8b320ba..899b8991a466 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -484,6 +484,15 @@ static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb
 	if (hdev->features[4] & LMP_EV5)
 		hdev->esco_type |= (ESCO_EV5);
 
+	if (hdev->features[5] & LMP_EDR_ESCO_2M)
+		hdev->esco_type |= (ESCO_2EV3);
+
+	if (hdev->features[5] & LMP_EDR_ESCO_3M)
+		hdev->esco_type |= (ESCO_3EV3);
+
+	if (hdev->features[5] & LMP_EDR_3S_ESCO)
+		hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
+
 	BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
 					hdev->features[0], hdev->features[1],
 					hdev->features[2], hdev->features[3],
@@ -1639,6 +1648,13 @@ static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_bu
 		conn->type = SCO_LINK;
 	}
 
+	if (conn->out && ev->status == 0x1c && conn->attempt < 2) {
+		conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
+					(hdev->esco_type & EDR_ESCO_MASK);
+		hci_setup_sync(conn, conn->link->handle);
+		goto unlock;
+	}
+
 	if (!ev->status) {
 		conn->handle = __le16_to_cpu(ev->handle);
 		conn->state  = BT_CONNECTED;
-- 
cgit v1.2.3


From 0684e5f9fb9e3f7e168ab831dfca693bcb44805b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 9 Feb 2009 02:48:38 +0100
Subject: Bluetooth: Use general bonding whenever possible

When receiving incoming connection to specific services, always use
general bonding. This ensures that the link key gets stored and can be
used for further authentications.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci_core.h |  2 +-
 net/bluetooth/hci_conn.c         | 23 +++++++++--------------
 net/bluetooth/l2cap.c            | 16 +++++++++++++++-
 net/bluetooth/rfcomm/core.c      | 16 +++++++++++++++-
 4 files changed, 40 insertions(+), 17 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 4b14972c1694..f75028b33883 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -328,7 +328,7 @@ void hci_conn_check_pending(struct hci_dev *hdev);
 
 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 int hci_conn_check_link_mode(struct hci_conn *conn);
-int hci_conn_security(struct hci_conn *conn, __u8 sec_level);
+int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 int hci_conn_change_link_key(struct hci_conn *conn);
 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 2435e830ba60..7fc4c048b57b 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -391,19 +391,14 @@ int hci_conn_check_link_mode(struct hci_conn *conn)
 EXPORT_SYMBOL(hci_conn_check_link_mode);
 
 /* Authenticate remote device */
-static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level)
+static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
 {
 	BT_DBG("conn %p", conn);
 
-	if (sec_level > conn->sec_level)
-		conn->link_mode &= ~HCI_LM_AUTH;
-
-	conn->sec_level = sec_level;
-
-	if (sec_level == BT_SECURITY_HIGH)
-		conn->auth_type |= 0x01;
-
-	if (conn->link_mode & HCI_LM_AUTH)
+	if (sec_level > conn->sec_level) {
+		conn->sec_level = sec_level;
+		conn->auth_type = auth_type;
+	} else if (conn->link_mode & HCI_LM_AUTH)
 		return 1;
 
 	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
@@ -417,7 +412,7 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level)
 }
 
 /* Enable security */
-int hci_conn_security(struct hci_conn *conn, __u8 sec_level)
+int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
 {
 	BT_DBG("conn %p", conn);
 
@@ -426,18 +421,18 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level)
 
 	if (sec_level == BT_SECURITY_LOW) {
 		if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0)
-			return hci_conn_auth(conn, sec_level);
+			return hci_conn_auth(conn, sec_level, auth_type);
 		else
 			return 1;
 	}
 
 	if (conn->link_mode & HCI_LM_ENCRYPT)
-		return hci_conn_auth(conn, sec_level);
+		return hci_conn_auth(conn, sec_level, auth_type);
 
 	if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 		return 0;
 
-	if (hci_conn_auth(conn, sec_level)) {
+	if (hci_conn_auth(conn, sec_level, auth_type)) {
 		struct hci_cp_set_conn_encrypt cp;
 		cp.handle  = cpu_to_le16(conn->handle);
 		cp.encrypt = 1;
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index b677af671f31..8a93dde4095b 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -263,8 +263,22 @@ static void l2cap_chan_del(struct sock *sk, int err)
 static inline int l2cap_check_security(struct sock *sk)
 {
 	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+	__u8 auth_type;
+
+	switch (l2cap_pi(sk)->sec_level) {
+	case BT_SECURITY_HIGH:
+		auth_type = HCI_AT_GENERAL_BONDING_MITM;
+		break;
+	case BT_SECURITY_MEDIUM:
+		auth_type = HCI_AT_GENERAL_BONDING;
+		break;
+	default:
+		auth_type = HCI_AT_NO_BONDING;
+		break;
+	}
 
-	return hci_conn_security(conn->hcon, l2cap_pi(sk)->sec_level);
+	return hci_conn_security(conn->hcon, l2cap_pi(sk)->sec_level,
+								auth_type);
 }
 
 static inline u8 l2cap_get_ident(struct l2cap_conn *conn)
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 3717c25ba33a..1828ec06ad1c 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -226,8 +226,22 @@ static int rfcomm_l2sock_create(struct socket **sock)
 static inline int rfcomm_check_security(struct rfcomm_dlc *d)
 {
 	struct sock *sk = d->session->sock->sk;
+	__u8 auth_type;
 
-	return hci_conn_security(l2cap_pi(sk)->conn->hcon, d->sec_level);
+	switch (d->sec_level) {
+	case BT_SECURITY_HIGH:
+		auth_type = HCI_AT_GENERAL_BONDING_MITM;
+		break;
+	case BT_SECURITY_MEDIUM:
+		auth_type = HCI_AT_GENERAL_BONDING;
+		break;
+	default:
+		auth_type = HCI_AT_NO_BONDING;
+		break;
+	}
+
+	return hci_conn_security(l2cap_pi(sk)->conn->hcon, d->sec_level,
+								auth_type);
 }
 
 /* ---- RFCOMM DLCs ---- */
-- 
cgit v1.2.3


From 984947dc64f82bc6cafa4d84ba1a139718f634a8 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 6 Feb 2009 23:35:19 +0100
Subject: Bluetooth: Fix race condition with L2CAP information request

When two L2CAP connections are requested quickly after the ACL link has
been established there exists a window for a race condition where a
connection request is sent before the information response has been
received. Any connection request should only be sent after an exchange
of the extended features mask has been finished.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h |  3 ++-
 net/bluetooth/l2cap.c         | 17 ++++++++++++++---
 2 files changed, 16 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 29f720e6188a..1c8cf3e9b1ca 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -223,7 +223,8 @@ struct l2cap_conn {
 };
 
 #define L2CAP_INFO_CL_MTU_REQ_SENT	0x01
-#define L2CAP_INFO_FEAT_MASK_REQ_SENT	0x02
+#define L2CAP_INFO_FEAT_MASK_REQ_SENT	0x04
+#define L2CAP_INFO_FEAT_MASK_REQ_DONE	0x08
 
 /* ----- L2CAP channel and socket info ----- */
 #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 8a93dde4095b..07fdbc7dd54d 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -320,6 +320,9 @@ static void l2cap_do_start(struct sock *sk)
 	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
 
 	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) {
+		if (!(conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE))
+			return;
+
 		if (l2cap_check_security(sk)) {
 			struct l2cap_conn_req req;
 			req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
@@ -455,6 +458,8 @@ static void l2cap_info_timeout(unsigned long arg)
 
 	conn->info_ident = 0;
 
+	conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+
 	l2cap_conn_start(conn);
 }
 
@@ -1787,6 +1792,9 @@ static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hd
 					cmd->ident == conn->info_ident) {
 		conn->info_ident = 0;
 		del_timer(&conn->info_timer);
+
+		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+
 		l2cap_conn_start(conn);
 	}
 
@@ -1857,7 +1865,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 
 	l2cap_pi(sk)->ident = cmd->ident;
 
-	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) {
+	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) {
 		if (l2cap_check_security(sk)) {
 			if (bt_sk(sk)->defer_setup) {
 				sk->sk_state = BT_CONNECT2;
@@ -2176,10 +2184,13 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
 
 	del_timer(&conn->info_timer);
 
-	if (type == L2CAP_IT_FEAT_MASK)
+	if (type == L2CAP_IT_FEAT_MASK) {
 		conn->feat_mask = get_unaligned_le32(rsp->data);
 
-	l2cap_conn_start(conn);
+		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+
+		l2cap_conn_start(conn);
+	}
 
 	return 0;
 }
-- 
cgit v1.2.3


From 6a8d3010b313d99adbb28f1826fac0234395bb26 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 6 Feb 2009 23:56:36 +0100
Subject: Bluetooth: Fix double L2CAP connection request

If the remote L2CAP server uses authentication pending stage and
encryption is enabled it can happen that a L2CAP connection request is
sent twice due to a race condition in the connection state machine.

When the remote side indicates any kind of connection pending, then
track this state and skip sending of L2CAP commands for this period.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h | 1 +
 net/bluetooth/l2cap.c         | 8 ++++++++
 2 files changed, 9 insertions(+)

(limited to 'include')

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 1c8cf3e9b1ca..4781d285b2e9 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -259,6 +259,7 @@ struct l2cap_pinfo {
 #define L2CAP_CONF_REQ_SENT	0x01
 #define L2CAP_CONF_INPUT_DONE	0x02
 #define L2CAP_CONF_OUTPUT_DONE	0x04
+#define L2CAP_CONF_CONNECT_PEND	0x80
 
 #define L2CAP_CONF_MAX_RETRIES	2
 
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 07fdbc7dd54d..01f750142d55 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -1946,11 +1946,14 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
 		l2cap_pi(sk)->dcid = dcid;
 		l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
 
+		l2cap_pi(sk)->conf_state &= ~L2CAP_CONF_CONNECT_PEND;
+
 		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
 					l2cap_build_conf_req(sk, req), req);
 		break;
 
 	case L2CAP_CR_PEND:
+		l2cap_pi(sk)->conf_state |= L2CAP_CONF_CONNECT_PEND;
 		break;
 
 	default:
@@ -2478,6 +2481,11 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 	for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
 		bh_lock_sock(sk);
 
+		if (l2cap_pi(sk)->conf_state & L2CAP_CONF_CONNECT_PEND) {
+			bh_unlock_sock(sk);
+			continue;
+		}
+
 		if (!status && (sk->sk_state == BT_CONNECTED ||
 						sk->sk_state == BT_CONFIG)) {
 			l2cap_check_encryption(sk, encrypt);
-- 
cgit v1.2.3


From 435fef20acfc48f46476abad55b0cd3aa47b8365 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 9 Feb 2009 03:55:28 +0100
Subject: Bluetooth: Don't enforce authentication for L2CAP PSM 1 and 3

The recommendation for the L2CAP PSM 1 (SDP) is to not use any kind
of authentication or encryption. So don't trigger authentication
for incoming and outgoing SDP connections.

For L2CAP PSM 3 (RFCOMM) there is no clear requirement, but with
Bluetooth 2.1 the initiator is required to enable authentication
and encryption first and this gets enforced. So there is no need
to trigger an additional authentication step. The RFCOMM service
security will make sure that a secure enough link key is present.

When the encryption gets enabled after the SDP connection setup,
then switch the security level from SDP to low security.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci_core.h | 3 +++
 net/bluetooth/l2cap.c            | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index f75028b33883..9473fce499e7 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -597,6 +597,9 @@ static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encr
 {
 	struct list_head *p;
 
+	if (conn->sec_level == BT_SECURITY_SDP)
+		conn->sec_level = BT_SECURITY_LOW;
+
 	hci_proto_encrypt_cfm(conn, status, encrypt);
 
 	read_lock_bh(&hci_cb_list_lock);
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 01f750142d55..88340d24d11d 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -805,7 +805,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_
 		l2cap_pi(sk)->sport = la->l2_psm;
 		sk->sk_state = BT_BOUND;
 
-		if (btohs(la->l2_psm) == 0x0001)
+		if (btohs(la->l2_psm) == 0x0001 || btohs(la->l2_psm) == 0x0003)
 			l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
 	}
 
@@ -852,6 +852,9 @@ static int l2cap_do_connect(struct sock *sk)
 			auth_type = HCI_AT_NO_BONDING_MITM;
 		else
 			auth_type = HCI_AT_NO_BONDING;
+
+		if (l2cap_pi(sk)->sec_level == BT_SECURITY_LOW)
+			l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
 	} else {
 		switch (l2cap_pi(sk)->sec_level) {
 		case BT_SECURITY_HIGH:
-- 
cgit v1.2.3


From e1027a7c69700301d14db03d2e049ee60c4f92df Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 9 Feb 2009 09:18:02 +0100
Subject: Bluetooth: Request L2CAP fixed channel list if available

If the extended features mask indicates support for fixed channels,
request the list of available fixed channels. This also enables the
fixed channel features bit so remote implementations can request
information about it. Currently only the signal channel will be
listed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h |  1 +
 net/bluetooth/l2cap.c         | 40 +++++++++++++++++++++++++++++++---------
 2 files changed, 32 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 4781d285b2e9..abfec8847718 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -185,6 +185,7 @@ struct l2cap_info_rsp {
 /* info type */
 #define L2CAP_IT_CL_MTU     0x0001
 #define L2CAP_IT_FEAT_MASK  0x0002
+#define L2CAP_IT_FIXED_CHAN 0x0003
 
 /* info result */
 #define L2CAP_IR_SUCCESS    0x0000
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 88340d24d11d..985366c36f48 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -50,9 +50,10 @@
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 
-#define VERSION "2.12"
+#define VERSION "2.13"
 
-static u32 l2cap_feat_mask = 0x0000;
+static u32 l2cap_feat_mask = 0x0080;
+static u8 l2cap_fixed_chan[8] = { 0x02, };
 
 static const struct proto_ops l2cap_sock_ops;
 
@@ -456,9 +457,8 @@ static void l2cap_info_timeout(unsigned long arg)
 {
 	struct l2cap_conn *conn = (void *) arg;
 
-	conn->info_ident = 0;
-
 	conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+	conn->info_ident = 0;
 
 	l2cap_conn_start(conn);
 }
@@ -1793,10 +1793,10 @@ static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hd
 
 	if ((conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) &&
 					cmd->ident == conn->info_ident) {
-		conn->info_ident = 0;
 		del_timer(&conn->info_timer);
 
 		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+		conn->info_ident = 0;
 
 		l2cap_conn_start(conn);
 	}
@@ -2165,6 +2165,14 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cm
 		put_unaligned(cpu_to_le32(l2cap_feat_mask), (__le32 *) rsp->data);
 		l2cap_send_cmd(conn, cmd->ident,
 					L2CAP_INFO_RSP, sizeof(buf), buf);
+	} else if (type == L2CAP_IT_FIXED_CHAN) {
+		u8 buf[12];
+		struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;
+		rsp->type   = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
+		rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);
+		memcpy(buf + 4, l2cap_fixed_chan, 8);
+		l2cap_send_cmd(conn, cmd->ident,
+					L2CAP_INFO_RSP, sizeof(buf), buf);
 	} else {
 		struct l2cap_info_rsp rsp;
 		rsp.type   = cpu_to_le16(type);
@@ -2186,14 +2194,28 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
 
 	BT_DBG("type 0x%4.4x result 0x%2.2x", type, result);
 
-	conn->info_ident = 0;
-
 	del_timer(&conn->info_timer);
 
 	if (type == L2CAP_IT_FEAT_MASK) {
 		conn->feat_mask = get_unaligned_le32(rsp->data);
 
+		if (conn->feat_mask & 0x0080) {
+			struct l2cap_info_req req;
+			req.type = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
+
+			conn->info_ident = l2cap_get_ident(conn);
+
+			l2cap_send_cmd(conn, conn->info_ident,
+					L2CAP_INFO_REQ, sizeof(req), &req);
+		} else {
+			conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+			conn->info_ident = 0;
+
+			l2cap_conn_start(conn);
+		}
+	} else if (type == L2CAP_IT_FIXED_CHAN) {
 		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+		conn->info_ident = 0;
 
 		l2cap_conn_start(conn);
 	}
@@ -2589,7 +2611,7 @@ static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 fl
 			goto drop;
 
 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
-			      skb->len);
+								skb->len);
 		conn->rx_len = len - skb->len;
 	} else {
 		BT_DBG("Cont: frag len %d (expecting %d)", skb->len, conn->rx_len);
@@ -2611,7 +2633,7 @@ static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 fl
 		}
 
 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
-			      skb->len);
+								skb->len);
 		conn->rx_len -= skb->len;
 
 		if (!conn->rx_len) {
-- 
cgit v1.2.3


From f29972de8e7476706ab3c01304a505e7c95d9040 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 12 Feb 2009 05:07:45 +0100
Subject: Bluetooth: Add CID field to L2CAP socket address structure

In preparation for L2CAP fixed channel support, the CID value of a
L2CAP connection needs to be accessible via the socket interface. The
CID is the connection identifier and exists as source and destination
value. So extend the L2CAP socket address structure with this field and
change getsockname() and getpeername() to fill it in.

The bind() and connect() functions have been modified to handle L2CAP
socket address structures of variable sizes. This makes them future
proof if additional fields need to be added.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h |  1 +
 net/bluetooth/l2cap.c         | 55 ++++++++++++++++++++++++++-----------------
 2 files changed, 35 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index abfec8847718..54737c5dc86c 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -37,6 +37,7 @@ struct sockaddr_l2 {
 	sa_family_t	l2_family;
 	__le16		l2_psm;
 	bdaddr_t	l2_bdaddr;
+	__le16		l2_cid;
 };
 
 /* L2CAP socket options */
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 985366c36f48..7bba469b6828 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -770,17 +770,21 @@ static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol)
 	return 0;
 }
 
-static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
+static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 {
-	struct sockaddr_l2 *la = (struct sockaddr_l2 *) addr;
 	struct sock *sk = sock->sk;
-	int err = 0;
+	struct sockaddr_l2 la;
+	int len, err = 0;
 
-	BT_DBG("sk %p, %s %d", sk, batostr(&la->l2_bdaddr), la->l2_psm);
+	BT_DBG("sk %p", sk);
 
 	if (!addr || addr->sa_family != AF_BLUETOOTH)
 		return -EINVAL;
 
+	memset(&la, 0, sizeof(la));
+	len = min_t(unsigned int, sizeof(la), alen);
+	memcpy(&la, addr, len);
+
 	lock_sock(sk);
 
 	if (sk->sk_state != BT_OPEN) {
@@ -788,7 +792,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_
 		goto done;
 	}
 
-	if (la->l2_psm && btohs(la->l2_psm) < 0x1001 &&
+	if (la.l2_psm && btohs(la.l2_psm) < 0x1001 &&
 				!capable(CAP_NET_BIND_SERVICE)) {
 		err = -EACCES;
 		goto done;
@@ -796,16 +800,16 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_
 
 	write_lock_bh(&l2cap_sk_list.lock);
 
-	if (la->l2_psm && __l2cap_get_sock_by_addr(la->l2_psm, &la->l2_bdaddr)) {
+	if (la.l2_psm && __l2cap_get_sock_by_addr(la.l2_psm, &la.l2_bdaddr)) {
 		err = -EADDRINUSE;
 	} else {
 		/* Save source address */
-		bacpy(&bt_sk(sk)->src, &la->l2_bdaddr);
-		l2cap_pi(sk)->psm   = la->l2_psm;
-		l2cap_pi(sk)->sport = la->l2_psm;
+		bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
+		l2cap_pi(sk)->psm   = la.l2_psm;
+		l2cap_pi(sk)->sport = la.l2_psm;
 		sk->sk_state = BT_BOUND;
 
-		if (btohs(la->l2_psm) == 0x0001 || btohs(la->l2_psm) == 0x0003)
+		if (btohs(la.l2_psm) == 0x0001 || btohs(la.l2_psm) == 0x0003)
 			l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
 	}
 
@@ -826,7 +830,8 @@ static int l2cap_do_connect(struct sock *sk)
 	__u8 auth_type;
 	int err = 0;
 
-	BT_DBG("%s -> %s psm 0x%2.2x", batostr(src), batostr(dst), l2cap_pi(sk)->psm);
+	BT_DBG("%s -> %s psm 0x%2.2x", batostr(src), batostr(dst),
+							l2cap_pi(sk)->psm);
 
 	if (!(hdev = hci_get_route(dst, src)))
 		return -EHOSTUNREACH;
@@ -906,20 +911,24 @@ done:
 
 static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
 {
-	struct sockaddr_l2 *la = (struct sockaddr_l2 *) addr;
 	struct sock *sk = sock->sk;
-	int err = 0;
+	struct sockaddr_l2 la;
+	int len, err = 0;
 
 	lock_sock(sk);
 
 	BT_DBG("sk %p", sk);
 
-	if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_l2)) {
+	if (!addr || addr->sa_family != AF_BLUETOOTH) {
 		err = -EINVAL;
 		goto done;
 	}
 
-	if (sk->sk_type == SOCK_SEQPACKET && !la->l2_psm) {
+	memset(&la, 0, sizeof(la));
+	len = min_t(unsigned int, sizeof(la), alen);
+	memcpy(&la, addr, len);
+
+	if (sk->sk_type == SOCK_SEQPACKET && !la.l2_psm) {
 		err = -EINVAL;
 		goto done;
 	}
@@ -946,8 +955,8 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
 	}
 
 	/* Set destination address and psm */
-	bacpy(&bt_sk(sk)->dst, &la->l2_bdaddr);
-	l2cap_pi(sk)->psm = la->l2_psm;
+	bacpy(&bt_sk(sk)->dst, &la.l2_bdaddr);
+	l2cap_pi(sk)->psm = la.l2_psm;
 
 	if ((err = l2cap_do_connect(sk)))
 		goto done;
@@ -1071,12 +1080,16 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *l
 	addr->sa_family = AF_BLUETOOTH;
 	*len = sizeof(struct sockaddr_l2);
 
-	if (peer)
+	if (peer) {
+		la->l2_psm = l2cap_pi(sk)->psm;
 		bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst);
-	else
+		la->l2_cid = htobs(l2cap_pi(sk)->dcid);
+	} else {
+		la->l2_psm = l2cap_pi(sk)->sport;
 		bacpy(&la->l2_bdaddr, &bt_sk(sk)->src);
+		la->l2_cid = htobs(l2cap_pi(sk)->scid);
+	}
 
-	la->l2_psm = l2cap_pi(sk)->psm;
 	return 0;
 }
 
@@ -1208,7 +1221,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
 {
 	struct sock *sk = sock->sk;
 	struct l2cap_options opts;
-	int err = 0, len;
+	int len, err = 0;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
-- 
cgit v1.2.3


From 2950f21acb0f6b8fcd964485c2ebf1e06545ac20 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 12 Feb 2009 14:02:50 +0100
Subject: Bluetooth: Ask upper layers for HCI disconnect reason

Some of the qualification tests demand that in case of failures in L2CAP
the HCI disconnect should indicate a reason why L2CAP fails. This is a
bluntly layer violation since multiple L2CAP connections could be using
the same ACL and thus forcing a disconnect reason is not a good idea.

To comply with the Bluetooth test specification, the disconnect reason
is now stored in the L2CAP connection structure and every time a new
L2CAP channel is added it will set back to its default. So only in the
case where the L2CAP channel with the disconnect reason is really the
last one, it will propagated to the HCI layer.

The HCI layer has been extended with a disconnect indication that allows
it to ask upper layers for a disconnect reason. The upper layer must not
support this callback and in that case it will nicely default to the
existing behavior. If an upper layer like L2CAP can provide a disconnect
reason that one will be used to disconnect the ACL or SCO link.

No modification to the ACL disconnect timeout have been made. So in case
of Linux to Linux connection the initiator will disconnect the ACL link
before the acceptor side can signal the specific disconnect reason. That
is perfectly fine since Linux doesn't make use of this value anyway. The
L2CAP layer has a perfect valid error code for rejecting connection due
to a security violation. It is unclear why the Bluetooth specification
insists on having specific HCI disconnect reason.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci_core.h | 25 +++++++++++++++++++++----
 include/net/bluetooth/l2cap.h    |  2 ++
 net/bluetooth/hci_conn.c         |  6 ++++--
 net/bluetooth/hci_event.c        |  2 +-
 net/bluetooth/l2cap.c            | 20 +++++++++++++++++++-
 net/bluetooth/sco.c              |  4 ++--
 6 files changed, 49 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 9473fce499e7..01f9316b4c23 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -478,7 +478,8 @@ struct hci_proto {
 
 	int (*connect_ind)	(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 	int (*connect_cfm)	(struct hci_conn *conn, __u8 status);
-	int (*disconn_ind)	(struct hci_conn *conn, __u8 reason);
+	int (*disconn_ind)	(struct hci_conn *conn);
+	int (*disconn_cfm)	(struct hci_conn *conn, __u8 reason);
 	int (*recv_acldata)	(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 	int (*recv_scodata)	(struct hci_conn *conn, struct sk_buff *skb);
 	int (*security_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
@@ -513,17 +514,33 @@ static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 		hp->connect_cfm(conn, status);
 }
 
-static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason)
+static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 {
 	register struct hci_proto *hp;
+	int reason = 0x13;
 
 	hp = hci_proto[HCI_PROTO_L2CAP];
 	if (hp && hp->disconn_ind)
-		hp->disconn_ind(conn, reason);
+		reason = hp->disconn_ind(conn);
 
 	hp = hci_proto[HCI_PROTO_SCO];
 	if (hp && hp->disconn_ind)
-		hp->disconn_ind(conn, reason);
+		reason = hp->disconn_ind(conn);
+
+	return reason;
+}
+
+static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
+{
+	register struct hci_proto *hp;
+
+	hp = hci_proto[HCI_PROTO_L2CAP];
+	if (hp && hp->disconn_cfm)
+		hp->disconn_cfm(conn, reason);
+
+	hp = hci_proto[HCI_PROTO_SCO];
+	if (hp && hp->disconn_cfm)
+		hp->disconn_cfm(conn, reason);
 }
 
 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 54737c5dc86c..f566aa1f0a4c 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -221,6 +221,8 @@ struct l2cap_conn {
 	__u8		rx_ident;
 	__u8		tx_ident;
 
+	__u8		disc_reason;
+
 	struct l2cap_chan_list chan_list;
 };
 
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index dcdaa4be7847..96281a11a186 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -159,6 +159,7 @@ static void hci_conn_timeout(unsigned long arg)
 {
 	struct hci_conn *conn = (void *) arg;
 	struct hci_dev *hdev = conn->hdev;
+	__u8 reason;
 
 	BT_DBG("conn %p state %d", conn, conn->state);
 
@@ -177,7 +178,8 @@ static void hci_conn_timeout(unsigned long arg)
 		break;
 	case BT_CONFIG:
 	case BT_CONNECTED:
-		hci_acl_disconn(conn, 0x13);
+		reason = hci_proto_disconn_ind(conn);
+		hci_acl_disconn(conn, reason);
 		break;
 	default:
 		conn->state = BT_CLOSED;
@@ -562,7 +564,7 @@ void hci_conn_hash_flush(struct hci_dev *hdev)
 
 		hci_conn_del_sysfs(c);
 
-		hci_proto_disconn_ind(c, 0x16);
+		hci_proto_disconn_cfm(c, 0x16);
 		hci_conn_del(c);
 	}
 }
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 899b8991a466..c396542c2b82 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1021,7 +1021,7 @@ static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff
 
 		hci_conn_del_sysfs(conn);
 
-		hci_proto_disconn_ind(conn, ev->reason);
+		hci_proto_disconn_cfm(conn, ev->reason);
 		hci_conn_del(conn);
 	}
 
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 7bba469b6828..d563f2ebcbb3 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -206,6 +206,8 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct so
 
 	BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn, l2cap_pi(sk)->psm, l2cap_pi(sk)->dcid);
 
+	conn->disc_reason = 0x13;
+
 	l2cap_pi(sk)->conn = conn;
 
 	if (sk->sk_type == SOCK_SEQPACKET) {
@@ -491,6 +493,8 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
 	spin_lock_init(&conn->lock);
 	rwlock_init(&conn->chan_list.lock);
 
+	conn->disc_reason = 0x13;
+
 	return conn;
 }
 
@@ -1840,6 +1844,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	/* Check if the ACL is secure enough (if not SDP) */
 	if (psm != cpu_to_le16(0x0001) &&
 				!hci_conn_check_link_mode(conn->hcon)) {
+		conn->disc_reason = 0x05;
 		result = L2CAP_CR_SEC_BLOCK;
 		goto response;
 	}
@@ -2472,7 +2477,19 @@ static int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
 	return 0;
 }
 
-static int l2cap_disconn_ind(struct hci_conn *hcon, u8 reason)
+static int l2cap_disconn_ind(struct hci_conn *hcon)
+{
+	struct l2cap_conn *conn = hcon->l2cap_data;
+
+	BT_DBG("hcon %p", hcon);
+
+	if (hcon->type != ACL_LINK || !conn)
+		return 0x13;
+
+	return conn->disc_reason;
+}
+
+static int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
 {
 	BT_DBG("hcon %p reason %d", hcon, reason);
 
@@ -2717,6 +2734,7 @@ static struct hci_proto l2cap_hci_proto = {
 	.connect_ind	= l2cap_connect_ind,
 	.connect_cfm	= l2cap_connect_cfm,
 	.disconn_ind	= l2cap_disconn_ind,
+	.disconn_cfm	= l2cap_disconn_cfm,
 	.security_cfm	= l2cap_security_cfm,
 	.recv_acldata	= l2cap_recv_acldata
 };
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 7f10f97cd697..51ae0c3e470a 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -902,7 +902,7 @@ static int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
 	return 0;
 }
 
-static int sco_disconn_ind(struct hci_conn *hcon, __u8 reason)
+static int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason)
 {
 	BT_DBG("hcon %p reason %d", hcon, reason);
 
@@ -985,7 +985,7 @@ static struct hci_proto sco_hci_proto = {
 	.id		= HCI_PROTO_SCO,
 	.connect_ind	= sco_connect_ind,
 	.connect_cfm	= sco_connect_cfm,
-	.disconn_ind	= sco_disconn_ind,
+	.disconn_cfm	= sco_disconn_cfm,
 	.recv_scodata	= sco_recv_scodata
 };
 
-- 
cgit v1.2.3


From b233b28eac0cc37d07c2d007ea08c86c778c5af4 Mon Sep 17 00:00:00 2001
From: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Date: Fri, 27 Feb 2009 16:07:32 +0900
Subject: sh: maple: Support block reads and writes.

This patch updates the maple bus to support asynchronous block reads
and writes as well as generally improving the quality of the code and
supporting concurrency (all needed to support the Dreamcast visual
memory unit - a driver will also be posted for that).

Changes in the bus driver necessitate some changes in the two maple bus
input drivers that are currently in mainline.

As well as supporting block reads and writes this code clean up removes
some poor handling of locks, uses an atomic status variable to serialise
access to devices and more robusly handles the general performance
problems of the bus.

Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 drivers/input/joystick/maplecontrol.c |   4 +-
 drivers/input/keyboard/maple_keyb.c   |  37 +--
 drivers/sh/maple/maple.c              | 463 +++++++++++++++++-----------------
 include/linux/maple.h                 |  62 +++--
 4 files changed, 300 insertions(+), 266 deletions(-)

(limited to 'include')

diff --git a/drivers/input/joystick/maplecontrol.c b/drivers/input/joystick/maplecontrol.c
index e50047bfe938..77cfde571bd9 100644
--- a/drivers/input/joystick/maplecontrol.c
+++ b/drivers/input/joystick/maplecontrol.c
@@ -3,7 +3,7 @@
  *	Based on drivers/usb/iforce.c
  *
  *	Copyright Yaegashi Takeshi, 2001
- *	Adrian McMenamin, 2008
+ *	Adrian McMenamin, 2008 - 2009
  */
 
 #include <linux/kernel.h>
@@ -29,7 +29,7 @@ static void dc_pad_callback(struct mapleq *mq)
 	struct maple_device *mapledev = mq->dev;
 	struct dc_pad *pad = maple_get_drvdata(mapledev);
 	struct input_dev *dev = pad->dev;
-	unsigned char *res = mq->recvbuf;
+	unsigned char *res = mq->recvbuf->buf;
 
 	buttons = ~le16_to_cpup((__le16 *)(res + 8));
 
diff --git a/drivers/input/keyboard/maple_keyb.c b/drivers/input/keyboard/maple_keyb.c
index 22f17a593be7..5aa2361aef95 100644
--- a/drivers/input/keyboard/maple_keyb.c
+++ b/drivers/input/keyboard/maple_keyb.c
@@ -1,8 +1,8 @@
 /*
  * SEGA Dreamcast keyboard driver
  * Based on drivers/usb/usbkbd.c
- * Copyright YAEGASHI Takeshi, 2001
- * Porting to 2.6 Copyright Adrian McMenamin, 2007, 2008
+ * Copyright (c) YAEGASHI Takeshi, 2001
+ * Porting to 2.6 Copyright (c) Adrian McMenamin, 2007 - 2009
  *
  * 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
@@ -33,7 +33,7 @@ static DEFINE_MUTEX(maple_keyb_mutex);
 
 #define NR_SCANCODES 256
 
-MODULE_AUTHOR("YAEGASHI Takeshi, Adrian McMenamin");
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk");
 MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver");
 MODULE_LICENSE("GPL");
 
@@ -115,7 +115,7 @@ static void dc_scan_kbd(struct dc_kbd *kbd)
 				input_event(dev, EV_MSC, MSC_SCAN, code);
 				input_report_key(dev, keycode, 0);
 			} else
-				printk(KERN_DEBUG "maple_keyb: "
+				dev_dbg(&dev->dev,
 					"Unknown key (scancode %#x) released.",
 					code);
 		}
@@ -127,7 +127,7 @@ static void dc_scan_kbd(struct dc_kbd *kbd)
 				input_event(dev, EV_MSC, MSC_SCAN, code);
 				input_report_key(dev, keycode, 1);
 			} else
-				printk(KERN_DEBUG "maple_keyb: "
+				dev_dbg(&dev->dev,
 					"Unknown key (scancode %#x) pressed.",
 					code);
 		}
@@ -140,7 +140,7 @@ static void dc_kbd_callback(struct mapleq *mq)
 {
 	struct maple_device *mapledev = mq->dev;
 	struct dc_kbd *kbd = maple_get_drvdata(mapledev);
-	unsigned long *buf = mq->recvbuf;
+	unsigned long *buf = (unsigned long *)(mq->recvbuf->buf);
 
 	/*
 	 * We should always get the lock because the only
@@ -159,22 +159,27 @@ static void dc_kbd_callback(struct mapleq *mq)
 
 static int probe_maple_kbd(struct device *dev)
 {
-	struct maple_device *mdev = to_maple_dev(dev);
-	struct maple_driver *mdrv = to_maple_driver(dev->driver);
+	struct maple_device *mdev;
+	struct maple_driver *mdrv;
 	int i, error;
 	struct dc_kbd *kbd;
 	struct input_dev *idev;
 
-	if (!(mdev->function & MAPLE_FUNC_KEYBOARD))
-		return -EINVAL;
+	mdev = to_maple_dev(dev);
+	mdrv = to_maple_driver(dev->driver);
 
 	kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL);
-	idev = input_allocate_device();
-	if (!kbd || !idev) {
+	if (!kbd) {
 		error = -ENOMEM;
 		goto fail;
 	}
 
+	idev = input_allocate_device();
+	if (!idev) {
+		error = -ENOMEM;
+		goto fail_idev_alloc;
+	}
+
 	kbd->dev = idev;
 	memcpy(kbd->keycode, dc_kbd_keycode, sizeof(kbd->keycode));
 
@@ -195,7 +200,7 @@ static int probe_maple_kbd(struct device *dev)
 
 	error = input_register_device(idev);
 	if (error)
-		goto fail;
+		goto fail_register;
 
 	/* Maple polling is locked to VBLANK - which may be just 50/s */
 	maple_getcond_callback(mdev, dc_kbd_callback, HZ/50,
@@ -207,10 +212,12 @@ static int probe_maple_kbd(struct device *dev)
 
 	return error;
 
-fail:
+fail_register:
+	maple_set_drvdata(mdev, NULL);
 	input_free_device(idev);
+fail_idev_alloc:
 	kfree(kbd);
-	maple_set_drvdata(mdev, NULL);
+fail:
 	return error;
 }
 
diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 63f0de29aa14..4054fe93d6e4 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -1,16 +1,10 @@
 /*
  * Core maple bus functionality
  *
- *  Copyright (C) 2007, 2008 Adrian McMenamin
+ *  Copyright (C) 2007 - 2009 Adrian McMenamin
  *  Copyright (C) 2001 - 2008 Paul Mundt
- *
- * Based on 2.4 code by:
- *
- *  Copyright (C) 2000-2001 YAEGASHI Takeshi
+ *  Copyright (C) 2000 - 2001 YAEGASHI Takeshi
  *  Copyright (C) 2001 M. R. Brown
- *  Copyright (C) 2001 Paul Mundt
- *
- * and others.
  *
  * 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
@@ -32,7 +26,7 @@
 #include <mach/dma.h>
 #include <mach/sysasic.h>
 
-MODULE_AUTHOR("Yaegashi Takeshi, Paul Mundt, M. R. Brown, Adrian McMenamin");
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
 MODULE_DESCRIPTION("Maple bus driver for Dreamcast");
 MODULE_LICENSE("GPL v2");
 MODULE_SUPPORTED_DEVICE("{{SEGA, Dreamcast/Maple}}");
@@ -49,7 +43,7 @@ static LIST_HEAD(maple_sentq);
 /* mutex to protect queue of waiting packets */
 static DEFINE_MUTEX(maple_wlist_lock);
 
-static struct maple_driver maple_dummy_driver;
+static struct maple_driver maple_unsupported_device;
 static struct device maple_bus;
 static int subdevice_map[MAPLE_PORTS];
 static unsigned long *maple_sendbuf, *maple_sendptr, *maple_lastptr;
@@ -62,8 +56,9 @@ struct maple_device_specify {
 	int unit;
 };
 
-static bool checked[4];
-static struct maple_device *baseunits[4];
+static bool checked[MAPLE_PORTS];
+static bool empty[MAPLE_PORTS];
+static struct maple_device *baseunits[MAPLE_PORTS];
 
 /**
  * maple_driver_register - register a maple driver
@@ -97,12 +92,20 @@ void maple_driver_unregister(struct maple_driver *drv)
 EXPORT_SYMBOL_GPL(maple_driver_unregister);
 
 /* set hardware registers to enable next round of dma */
-static void maplebus_dma_reset(void)
+static void maple_dma_reset(void)
 {
 	ctrl_outl(MAPLE_MAGIC, MAPLE_RESET);
 	/* set trig type to 0 for software trigger, 1 for hardware (VBLANK) */
 	ctrl_outl(1, MAPLE_TRIGTYPE);
-	ctrl_outl(MAPLE_2MBPS | MAPLE_TIMEOUT(50000), MAPLE_SPEED);
+	/*
+	* Maple system register
+	* bits 31 - 16	timeout in units of 20nsec
+	* bit 12	hard trigger - set 0 to keep responding to VBLANK
+	* bits 9 - 8	set 00 for 2 Mbps, 01 for 1 Mbps
+	* bits 3 - 0	delay (in 1.3ms) between VBLANK and start of DMA
+	* max delay is 11
+	*/
+	ctrl_outl(MAPLE_2MBPS | MAPLE_TIMEOUT(0xFFFF), MAPLE_SPEED);
 	ctrl_outl(PHYSADDR(maple_sendbuf), MAPLE_DMAADDR);
 	ctrl_outl(1, MAPLE_ENABLE);
 }
@@ -134,21 +137,16 @@ static void maple_release_device(struct device *dev)
 {
 	struct maple_device *mdev;
 	struct mapleq *mq;
-	if (!dev)
-		return;
+
 	mdev = to_maple_dev(dev);
 	mq = mdev->mq;
-	if (mq) {
-		if (mq->recvbufdcsp)
-			kmem_cache_free(maple_queue_cache, mq->recvbufdcsp);
-		kfree(mq);
-		mq = NULL;
-	}
+	kmem_cache_free(maple_queue_cache, mq->recvbuf);
+	kfree(mq);
 	kfree(mdev);
 }
 
 /**
- * maple_add_packet - add a single instruction to the queue
+ * maple_add_packet - add a single instruction to the maple bus queue
  * @mdev: maple device
  * @function: function on device being queried
  * @command: maple command to add
@@ -158,68 +156,12 @@ static void maple_release_device(struct device *dev)
 int maple_add_packet(struct maple_device *mdev, u32 function, u32 command,
 	size_t length, void *data)
 {
-	int locking, ret = 0;
+	int ret = 0;
 	void *sendbuf = NULL;
 
-	mutex_lock(&maple_wlist_lock);
-	/* bounce if device already locked */
-	locking = mutex_is_locked(&mdev->mq->mutex);
-	if (locking) {
-		ret = -EBUSY;
-		goto out;
-	}
-
-	mutex_lock(&mdev->mq->mutex);
-
 	if (length) {
-		sendbuf = kmalloc(length * 4, GFP_KERNEL);
+		sendbuf = kzalloc(length * 4, GFP_KERNEL);
 		if (!sendbuf) {
-			mutex_unlock(&mdev->mq->mutex);
-			ret = -ENOMEM;
-			goto out;
-		}
-		((__be32 *)sendbuf)[0] = cpu_to_be32(function);
-	}
-
-	mdev->mq->command = command;
-	mdev->mq->length = length;
-	if (length > 1)
-		memcpy(sendbuf + 4, data, (length - 1) * 4);
-	mdev->mq->sendbuf = sendbuf;
-
-	list_add(&mdev->mq->list, &maple_waitq);
-out:
-	mutex_unlock(&maple_wlist_lock);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(maple_add_packet);
-
-/**
- * maple_add_packet_sleeps - add a single instruction to the queue
- * @mdev: maple device
- * @function: function on device being queried
- * @command: maple command to add
- * @length: length of command string (in 32 bit words)
- * @data: remainder of command string
- *
- * Same as maple_add_packet(), but waits for the lock to become free.
- */
-int maple_add_packet_sleeps(struct maple_device *mdev, u32 function,
-	u32 command, size_t length, void *data)
-{
-	int locking, ret = 0;
-	void *sendbuf = NULL;
-
-	locking = mutex_lock_interruptible(&mdev->mq->mutex);
-	if (locking) {
-		ret = -EIO;
-		goto out;
-	}
-
-	if (length) {
-		sendbuf = kmalloc(length * 4, GFP_KERNEL);
-		if (!sendbuf) {
-			mutex_unlock(&mdev->mq->mutex);
 			ret = -ENOMEM;
 			goto out;
 		}
@@ -233,38 +175,35 @@ int maple_add_packet_sleeps(struct maple_device *mdev, u32 function,
 	mdev->mq->sendbuf = sendbuf;
 
 	mutex_lock(&maple_wlist_lock);
-	list_add(&mdev->mq->list, &maple_waitq);
+	list_add_tail(&mdev->mq->list, &maple_waitq);
 	mutex_unlock(&maple_wlist_lock);
 out:
 	return ret;
 }
-EXPORT_SYMBOL_GPL(maple_add_packet_sleeps);
+EXPORT_SYMBOL_GPL(maple_add_packet);
 
 static struct mapleq *maple_allocq(struct maple_device *mdev)
 {
 	struct mapleq *mq;
 
-	mq = kmalloc(sizeof(*mq), GFP_KERNEL);
+	mq = kzalloc(sizeof(*mq), GFP_KERNEL);
 	if (!mq)
 		goto failed_nomem;
 
+	INIT_LIST_HEAD(&mq->list);
 	mq->dev = mdev;
-	mq->recvbufdcsp = kmem_cache_zalloc(maple_queue_cache, GFP_KERNEL);
-	mq->recvbuf = (void *) P2SEGADDR(mq->recvbufdcsp);
+	mq->recvbuf = kmem_cache_zalloc(maple_queue_cache, GFP_KERNEL);
 	if (!mq->recvbuf)
 		goto failed_p2;
-	/*
-	 * most devices do not need the mutex - but
-	 * anything that injects block reads or writes
-	 * will rely on it
-	 */
-	mutex_init(&mq->mutex);
+	mq->recvbuf->buf = &((mq->recvbuf->bufx)[0]);
 
 	return mq;
 
 failed_p2:
 	kfree(mq);
 failed_nomem:
+	dev_err(&mdev->dev, "could not allocate memory for device (%d, %d)\n",
+		mdev->port, mdev->unit);
 	return NULL;
 }
 
@@ -272,12 +211,16 @@ static struct maple_device *maple_alloc_dev(int port, int unit)
 {
 	struct maple_device *mdev;
 
+	/* zero this out to avoid kobj subsystem
+	* thinking it has already been registered */
+
 	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
 	if (!mdev)
 		return NULL;
 
 	mdev->port = port;
 	mdev->unit = unit;
+
 	mdev->mq = maple_allocq(mdev);
 
 	if (!mdev->mq) {
@@ -286,19 +229,14 @@ static struct maple_device *maple_alloc_dev(int port, int unit)
 	}
 	mdev->dev.bus = &maple_bus_type;
 	mdev->dev.parent = &maple_bus;
+	init_waitqueue_head(&mdev->maple_wait);
 	return mdev;
 }
 
 static void maple_free_dev(struct maple_device *mdev)
 {
-	if (!mdev)
-		return;
-	if (mdev->mq) {
-		if (mdev->mq->recvbufdcsp)
-			kmem_cache_free(maple_queue_cache,
-				mdev->mq->recvbufdcsp);
-		kfree(mdev->mq);
-	}
+	kmem_cache_free(maple_queue_cache, mdev->mq->recvbuf);
+	kfree(mdev->mq);
 	kfree(mdev);
 }
 
@@ -320,7 +258,7 @@ static void maple_build_block(struct mapleq *mq)
 	maple_lastptr = maple_sendptr;
 
 	*maple_sendptr++ = (port << 16) | len | 0x80000000;
-	*maple_sendptr++ = PHYSADDR(mq->recvbuf);
+	*maple_sendptr++ = PHYSADDR(mq->recvbuf->buf);
 	*maple_sendptr++ =
 	    mq->command | (to << 8) | (from << 16) | (len << 24);
 	while (len-- > 0)
@@ -333,20 +271,28 @@ static void maple_send(void)
 	int i, maple_packets = 0;
 	struct mapleq *mq, *nmq;
 
-	if (!list_empty(&maple_sentq))
+	if (!maple_dma_done())
 		return;
+
+	/* disable DMA */
+	ctrl_outl(0, MAPLE_ENABLE);
+
+	if (!list_empty(&maple_sentq))
+		goto finish;
+
 	mutex_lock(&maple_wlist_lock);
-	if (list_empty(&maple_waitq) || !maple_dma_done()) {
+	if (list_empty(&maple_waitq)) {
 		mutex_unlock(&maple_wlist_lock);
-		return;
+		goto finish;
 	}
-	mutex_unlock(&maple_wlist_lock);
+
 	maple_lastptr = maple_sendbuf;
 	maple_sendptr = maple_sendbuf;
-	mutex_lock(&maple_wlist_lock);
+
 	list_for_each_entry_safe(mq, nmq, &maple_waitq, list) {
 		maple_build_block(mq);
-		list_move(&mq->list, &maple_sentq);
+		list_del_init(&mq->list);
+		list_add_tail(&mq->list, &maple_sentq);
 		if (maple_packets++ > MAPLE_MAXPACKETS)
 			break;
 	}
@@ -356,10 +302,13 @@ static void maple_send(void)
 			dma_cache_sync(0, maple_sendbuf + i * PAGE_SIZE,
 				       PAGE_SIZE, DMA_BIDIRECTIONAL);
 	}
+
+finish:
+	maple_dma_reset();
 }
 
 /* check if there is a driver registered likely to match this device */
-static int check_matching_maple_driver(struct device_driver *driver,
+static int maple_check_matching_driver(struct device_driver *driver,
 					void *devptr)
 {
 	struct maple_driver *maple_drv;
@@ -374,10 +323,7 @@ static int check_matching_maple_driver(struct device_driver *driver,
 
 static void maple_detach_driver(struct maple_device *mdev)
 {
-	if (!mdev)
-		return;
 	device_unregister(&mdev->dev);
-	mdev = NULL;
 }
 
 /* process initial MAPLE_COMMAND_DEVINFO for each device or port */
@@ -385,9 +331,9 @@ static void maple_attach_driver(struct maple_device *mdev)
 {
 	char *p, *recvbuf;
 	unsigned long function;
-	int matched, retval;
+	int matched, error;
 
-	recvbuf = mdev->mq->recvbuf;
+	recvbuf = mdev->mq->recvbuf->buf;
 	/* copy the data as individual elements in
 	* case of memory optimisation */
 	memcpy(&mdev->devinfo.function, recvbuf + 4, 4);
@@ -395,7 +341,6 @@ static void maple_attach_driver(struct maple_device *mdev)
 	memcpy(&mdev->devinfo.area_code, recvbuf + 20, 1);
 	memcpy(&mdev->devinfo.connector_direction, recvbuf + 21, 1);
 	memcpy(&mdev->devinfo.product_name[0], recvbuf + 22, 30);
-	memcpy(&mdev->devinfo.product_licence[0], recvbuf + 52, 60);
 	memcpy(&mdev->devinfo.standby_power, recvbuf + 112, 2);
 	memcpy(&mdev->devinfo.max_power, recvbuf + 114, 2);
 	memcpy(mdev->product_name, mdev->devinfo.product_name, 30);
@@ -414,43 +359,41 @@ static void maple_attach_driver(struct maple_device *mdev)
 		else
 			break;
 
-	printk(KERN_INFO "Maple device detected: %s\n",
-		mdev->product_name);
-	printk(KERN_INFO "Maple device: %s\n", mdev->product_licence);
-
 	function = be32_to_cpu(mdev->devinfo.function);
 
+	dev_info(&mdev->dev, "detected %s: function 0x%lX: at (%d, %d)\n",
+		mdev->product_name, function, mdev->port, mdev->unit);
+
 	if (function > 0x200) {
 		/* Do this silently - as not a real device */
 		function = 0;
-		mdev->driver = &maple_dummy_driver;
+		mdev->driver = &maple_unsupported_device;
 		sprintf(mdev->dev.bus_id, "%d:0.port", mdev->port);
+
 	} else {
-		printk(KERN_INFO
-			"Maple bus at (%d, %d): Function 0x%lX\n",
-			mdev->port, mdev->unit, function);
 
 		matched =
 			bus_for_each_drv(&maple_bus_type, NULL, mdev,
-				check_matching_maple_driver);
+				maple_check_matching_driver);
 
 		if (matched == 0) {
 			/* Driver does not exist yet */
-			printk(KERN_INFO
-				"No maple driver found.\n");
-			mdev->driver = &maple_dummy_driver;
+			dev_info(&mdev->dev, "no driver found\n");
+			mdev->driver = &maple_unsupported_device;
 		}
 		sprintf(mdev->dev.bus_id, "%d:0%d.%lX", mdev->port,
 			mdev->unit, function);
 	}
+
 	mdev->function = function;
 	mdev->dev.release = &maple_release_device;
-	retval = device_register(&mdev->dev);
-	if (retval) {
-		printk(KERN_INFO
-		"Maple bus: Attempt to register device"
-		" (%x, %x) failed.\n",
-		mdev->port, mdev->unit);
+
+	atomic_set(&mdev->busy, 0);
+	error = device_register(&mdev->dev);
+	if (error) {
+		dev_warn(&mdev->dev, "could not register device at"
+			" (%d, %d), with error 0x%X\n", mdev->unit,
+			mdev->port, error);
 		maple_free_dev(mdev);
 		mdev = NULL;
 		return;
@@ -462,7 +405,7 @@ static void maple_attach_driver(struct maple_device *mdev)
  * port and unit then return 1 - allows identification
  * of which devices need to be attached or detached
  */
-static int detach_maple_device(struct device *device, void *portptr)
+static int check_maple_device(struct device *device, void *portptr)
 {
 	struct maple_device_specify *ds;
 	struct maple_device *mdev;
@@ -477,21 +420,25 @@ static int detach_maple_device(struct device *device, void *portptr)
 static int setup_maple_commands(struct device *device, void *ignored)
 {
 	int add;
-	struct maple_device *maple_dev = to_maple_dev(device);
-
-	if ((maple_dev->interval > 0)
-	    && time_after(jiffies, maple_dev->when)) {
-		/* bounce if we cannot lock */
-		add = maple_add_packet(maple_dev,
-			be32_to_cpu(maple_dev->devinfo.function),
+	struct maple_device *mdev = to_maple_dev(device);
+	if (mdev->interval > 0 && atomic_read(&mdev->busy) == 0 &&
+		time_after(jiffies, mdev->when)) {
+		/* bounce if we cannot add */
+		add = maple_add_packet(mdev,
+			be32_to_cpu(mdev->devinfo.function),
 			MAPLE_COMMAND_GETCOND, 1, NULL);
 		if (!add)
-			maple_dev->when = jiffies + maple_dev->interval;
+			mdev->when = jiffies + mdev->interval;
 	} else {
 		if (time_after(jiffies, maple_pnp_time))
-			/* This will also bounce */
-			maple_add_packet(maple_dev, 0,
-				MAPLE_COMMAND_DEVINFO, 0, NULL);
+			/* Ensure we don't have block reads and devinfo
+			* calls interfering with one another - so flag the
+			* device as busy */
+			if (atomic_read(&mdev->busy) == 0) {
+				atomic_set(&mdev->busy, 1);
+				maple_add_packet(mdev, 0,
+					MAPLE_COMMAND_DEVINFO, 0, NULL);
+			}
 	}
 	return 0;
 }
@@ -499,29 +446,50 @@ static int setup_maple_commands(struct device *device, void *ignored)
 /* VBLANK bottom half - implemented via workqueue */
 static void maple_vblank_handler(struct work_struct *work)
 {
-	if (!list_empty(&maple_sentq) || !maple_dma_done())
+	int x, locking;
+	struct maple_device *mdev;
+
+	if (!maple_dma_done())
 		return;
 
 	ctrl_outl(0, MAPLE_ENABLE);
 
+	if (!list_empty(&maple_sentq))
+		goto finish;
+
+	/*
+	* Set up essential commands - to fetch data and
+	* check devices are still present
+	*/
 	bus_for_each_dev(&maple_bus_type, NULL, NULL,
-			 setup_maple_commands);
+		setup_maple_commands);
+
+	if (time_after(jiffies, maple_pnp_time)) {
+		/*
+		* Scan the empty ports - bus is flakey and may have
+		* mis-reported emptyness
+		*/
+		for (x = 0; x < MAPLE_PORTS; x++) {
+			if (checked[x] && empty[x]) {
+				mdev = baseunits[x];
+				if (!mdev)
+					break;
+				atomic_set(&mdev->busy, 1);
+				locking = maple_add_packet(mdev, 0,
+					MAPLE_COMMAND_DEVINFO, 0, NULL);
+				if (!locking)
+					break;
+				}
+			}
 
-	if (time_after(jiffies, maple_pnp_time))
 		maple_pnp_time = jiffies + MAPLE_PNP_INTERVAL;
-
-	mutex_lock(&maple_wlist_lock);
-	if (!list_empty(&maple_waitq) && list_empty(&maple_sentq)) {
-		mutex_unlock(&maple_wlist_lock);
-		maple_send();
-	} else {
-		mutex_unlock(&maple_wlist_lock);
 	}
 
-	maplebus_dma_reset();
+finish:
+	maple_send();
 }
 
-/* handle devices added via hotplugs - placing them on queue for DEVINFO*/
+/* handle devices added via hotplugs - placing them on queue for DEVINFO */
 static void maple_map_subunits(struct maple_device *mdev, int submask)
 {
 	int retval, k, devcheck;
@@ -533,7 +501,7 @@ static void maple_map_subunits(struct maple_device *mdev, int submask)
 		ds.unit = k + 1;
 		retval =
 		    bus_for_each_dev(&maple_bus_type, NULL, &ds,
-				     detach_maple_device);
+				     check_maple_device);
 		if (retval) {
 			submask = submask >> 1;
 			continue;
@@ -543,6 +511,7 @@ static void maple_map_subunits(struct maple_device *mdev, int submask)
 			mdev_add = maple_alloc_dev(mdev->port, k + 1);
 			if (!mdev_add)
 				return;
+			atomic_set(&mdev_add->busy, 1);
 			maple_add_packet(mdev_add, 0, MAPLE_COMMAND_DEVINFO,
 				0, NULL);
 			/* mark that we are checking sub devices */
@@ -564,27 +533,45 @@ static void maple_clean_submap(struct maple_device *mdev)
 }
 
 /* handle empty port or hotplug removal */
-static void maple_response_none(struct maple_device *mdev,
-				struct mapleq *mq)
-{
-	if (mdev->unit != 0) {
-		list_del(&mq->list);
-		maple_clean_submap(mdev);
-		printk(KERN_INFO
-		       "Maple bus device detaching at (%d, %d)\n",
-		       mdev->port, mdev->unit);
+static void maple_response_none(struct maple_device *mdev)
+{
+	maple_clean_submap(mdev);
+
+	if (likely(mdev->unit != 0)) {
+		/*
+		* Block devices play up
+		* and give the impression they have
+		* been removed even when still in place or
+		* trip the mtd layer when they have
+		* really gone - this code traps that eventuality
+		* and ensures we aren't overloaded with useless
+		* error messages
+		*/
+		if (mdev->can_unload) {
+			if (!mdev->can_unload(mdev)) {
+				atomic_set(&mdev->busy, 2);
+				wake_up(&mdev->maple_wait);
+				return;
+			}
+		}
+
+		dev_info(&mdev->dev, "detaching device at (%d, %d)\n",
+			mdev->port, mdev->unit);
 		maple_detach_driver(mdev);
 		return;
-	}
-	if (!started || !fullscan) {
-		if (checked[mdev->port] == false) {
-			checked[mdev->port] = true;
-			printk(KERN_INFO "No maple devices attached"
-				" to port %d\n", mdev->port);
+	} else {
+		if (!started || !fullscan) {
+			if (checked[mdev->port] == false) {
+				checked[mdev->port] = true;
+				empty[mdev->port] = true;
+				dev_info(&mdev->dev, "no devices"
+					" to port %d\n", mdev->port);
+			}
+			return;
 		}
-		return;
 	}
-	maple_clean_submap(mdev);
+	/* Some hardware devices generate false detach messages on unit 0 */
+	atomic_set(&mdev->busy, 0);
 }
 
 /* preprocess hotplugs or scans */
@@ -599,8 +586,11 @@ static void maple_response_devinfo(struct maple_device *mdev,
 		} else {
 			if (mdev->unit != 0)
 				maple_attach_driver(mdev);
+			if (mdev->unit == 0) {
+				empty[mdev->port] = false;
+				maple_attach_driver(mdev);
+			}
 		}
-		return;
 	}
 	if (mdev->unit == 0) {
 		submask = recvbuf[2] & 0x1F;
@@ -611,6 +601,17 @@ static void maple_response_devinfo(struct maple_device *mdev,
 	}
 }
 
+static void maple_response_fileerr(struct maple_device *mdev, void *recvbuf)
+{
+	if (mdev->fileerr_handler) {
+		mdev->fileerr_handler(mdev, recvbuf);
+		return;
+	} else
+		dev_warn(&mdev->dev, "device at (%d, %d) reports"
+			"file error 0x%X\n", mdev->port, mdev->unit,
+			((int *)recvbuf)[1]);
+}
+
 static void maple_port_rescan(void)
 {
 	int i;
@@ -621,12 +622,6 @@ static void maple_port_rescan(void)
 		if (checked[i] == false) {
 			fullscan = 0;
 			mdev = baseunits[i];
-			/*
-			 *  test lock in case scan has failed
-			 *  but device is still locked
-			 */
-			if (mutex_is_locked(&mdev->mq->mutex))
-				mutex_unlock(&mdev->mq->mutex);
 			maple_add_packet(mdev, 0, MAPLE_COMMAND_DEVINFO,
 				0, NULL);
 		}
@@ -637,7 +632,7 @@ static void maple_port_rescan(void)
 static void maple_dma_handler(struct work_struct *work)
 {
 	struct mapleq *mq, *nmq;
-	struct maple_device *dev;
+	struct maple_device *mdev;
 	char *recvbuf;
 	enum maple_code code;
 
@@ -646,43 +641,56 @@ static void maple_dma_handler(struct work_struct *work)
 	ctrl_outl(0, MAPLE_ENABLE);
 	if (!list_empty(&maple_sentq)) {
 		list_for_each_entry_safe(mq, nmq, &maple_sentq, list) {
-			recvbuf = mq->recvbuf;
+			mdev = mq->dev;
+			recvbuf = mq->recvbuf->buf;
+			dma_cache_sync(&mdev->dev, recvbuf, 0x400,
+				DMA_FROM_DEVICE);
 			code = recvbuf[0];
-			dev = mq->dev;
 			kfree(mq->sendbuf);
-			mutex_unlock(&mq->mutex);
 			list_del_init(&mq->list);
-
 			switch (code) {
 			case MAPLE_RESPONSE_NONE:
-				maple_response_none(dev, mq);
+				maple_response_none(mdev);
 				break;
 
 			case MAPLE_RESPONSE_DEVINFO:
-				maple_response_devinfo(dev, recvbuf);
+				maple_response_devinfo(mdev, recvbuf);
+				atomic_set(&mdev->busy, 0);
 				break;
 
 			case MAPLE_RESPONSE_DATATRF:
-				if (dev->callback)
-					dev->callback(mq);
+				if (mdev->callback)
+					mdev->callback(mq);
+				atomic_set(&mdev->busy, 0);
+				wake_up(&mdev->maple_wait);
 				break;
 
 			case MAPLE_RESPONSE_FILEERR:
+				maple_response_fileerr(mdev, recvbuf);
+				atomic_set(&mdev->busy, 0);
+				wake_up(&mdev->maple_wait);
+				break;
+
 			case MAPLE_RESPONSE_AGAIN:
 			case MAPLE_RESPONSE_BADCMD:
 			case MAPLE_RESPONSE_BADFUNC:
-				printk(KERN_DEBUG
-				       "Maple non-fatal error 0x%X\n",
-				       code);
+				dev_warn(&mdev->dev, "non-fatal error"
+					" 0x%X at (%d, %d)\n", code,
+					mdev->port, mdev->unit);
+				atomic_set(&mdev->busy, 0);
 				break;
 
 			case MAPLE_RESPONSE_ALLINFO:
-				printk(KERN_DEBUG
-				       "Maple - extended device information"
-					" not supported\n");
+				dev_notice(&mdev->dev, "extended"
+				" device information request for (%d, %d)"
+				" but call is not supported\n", mdev->port,
+				mdev->unit);
+				atomic_set(&mdev->busy, 0);
 				break;
 
 			case MAPLE_RESPONSE_OK:
+				atomic_set(&mdev->busy, 0);
+				wake_up(&mdev->maple_wait);
 				break;
 
 			default:
@@ -699,20 +707,19 @@ static void maple_dma_handler(struct work_struct *work)
 		if (!fullscan)
 			maple_port_rescan();
 		/* mark that we have been through the first scan */
-		if (started == 0)
-			started = 1;
+		started = 1;
 	}
-	maplebus_dma_reset();
+	maple_send();
 }
 
-static irqreturn_t maplebus_dma_interrupt(int irq, void *dev_id)
+static irqreturn_t maple_dma_interrupt(int irq, void *dev_id)
 {
 	/* Load everything into the bottom half */
 	schedule_work(&maple_dma_process);
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t maplebus_vblank_interrupt(int irq, void *dev_id)
+static irqreturn_t maple_vblank_interrupt(int irq, void *dev_id)
 {
 	schedule_work(&maple_vblank_process);
 	return IRQ_HANDLED;
@@ -720,14 +727,14 @@ static irqreturn_t maplebus_vblank_interrupt(int irq, void *dev_id)
 
 static int maple_set_dma_interrupt_handler(void)
 {
-	return request_irq(HW_EVENT_MAPLE_DMA, maplebus_dma_interrupt,
-		IRQF_SHARED, "maple bus DMA", &maple_dummy_driver);
+	return request_irq(HW_EVENT_MAPLE_DMA, maple_dma_interrupt,
+		IRQF_SHARED, "maple bus DMA", &maple_unsupported_device);
 }
 
 static int maple_set_vblank_interrupt_handler(void)
 {
-	return request_irq(HW_EVENT_VSYNC, maplebus_vblank_interrupt,
-		IRQF_SHARED, "maple bus VBLANK", &maple_dummy_driver);
+	return request_irq(HW_EVENT_VSYNC, maple_vblank_interrupt,
+		IRQF_SHARED, "maple bus VBLANK", &maple_unsupported_device);
 }
 
 static int maple_get_dma_buffer(void)
@@ -740,7 +747,7 @@ static int maple_get_dma_buffer(void)
 	return 0;
 }
 
-static int match_maple_bus_driver(struct device *devptr,
+static int maple_match_bus_driver(struct device *devptr,
 				  struct device_driver *drvptr)
 {
 	struct maple_driver *maple_drv = to_maple_driver(drvptr);
@@ -765,16 +772,18 @@ static void maple_bus_release(struct device *dev)
 {
 }
 
-static struct maple_driver maple_dummy_driver = {
+static struct maple_driver maple_unsupported_device = {
 	.drv = {
-		.name = "maple_dummy_driver",
+		.name = "maple_unsupported_device",
 		.bus = &maple_bus_type,
 	},
 };
-
+/**
+ * maple_bus_type - core maple bus structure
+ */
 struct bus_type maple_bus_type = {
 	.name = "maple",
-	.match = match_maple_bus_driver,
+	.match = maple_match_bus_driver,
 	.uevent = maple_bus_uevent,
 };
 EXPORT_SYMBOL_GPL(maple_bus_type);
@@ -788,7 +797,8 @@ static int __init maple_bus_init(void)
 {
 	int retval, i;
 	struct maple_device *mdev[MAPLE_PORTS];
-	ctrl_outl(0, MAPLE_STATE);
+
+	ctrl_outl(0, MAPLE_ENABLE);
 
 	retval = device_register(&maple_bus);
 	if (retval)
@@ -798,36 +808,33 @@ static int __init maple_bus_init(void)
 	if (retval)
 		goto cleanup_device;
 
-	retval = driver_register(&maple_dummy_driver.drv);
+	retval = driver_register(&maple_unsupported_device.drv);
 	if (retval)
 		goto cleanup_bus;
 
 	/* allocate memory for maple bus dma */
 	retval = maple_get_dma_buffer();
 	if (retval) {
-		printk(KERN_INFO
-		       "Maple bus: Failed to allocate Maple DMA buffers\n");
+		dev_err(&maple_bus, "failed to allocate DMA buffers\n");
 		goto cleanup_basic;
 	}
 
 	/* set up DMA interrupt handler */
 	retval = maple_set_dma_interrupt_handler();
 	if (retval) {
-		printk(KERN_INFO
-		       "Maple bus: Failed to grab maple DMA IRQ\n");
+		dev_err(&maple_bus, "bus failed to grab maple "
+			"DMA IRQ\n");
 		goto cleanup_dma;
 	}
 
 	/* set up VBLANK interrupt handler */
 	retval = maple_set_vblank_interrupt_handler();
 	if (retval) {
-		printk(KERN_INFO "Maple bus: Failed to grab VBLANK IRQ\n");
+		dev_err(&maple_bus, "bus failed to grab VBLANK IRQ\n");
 		goto cleanup_irq;
 	}
 
-	maple_queue_cache =
-	    kmem_cache_create("maple_queue_cache", 0x400, 0,
-			      SLAB_HWCACHE_ALIGN, NULL);
+	maple_queue_cache = KMEM_CACHE(maple_buffer, SLAB_HWCACHE_ALIGN);
 
 	if (!maple_queue_cache)
 		goto cleanup_bothirqs;
@@ -838,23 +845,23 @@ static int __init maple_bus_init(void)
 	/* setup maple ports */
 	for (i = 0; i < MAPLE_PORTS; i++) {
 		checked[i] = false;
+		empty[i] = false;
 		mdev[i] = maple_alloc_dev(i, 0);
-		baseunits[i] = mdev[i];
 		if (!mdev[i]) {
 			while (i-- > 0)
 				maple_free_dev(mdev[i]);
 			goto cleanup_cache;
 		}
+		baseunits[i] = mdev[i];
+		atomic_set(&mdev[i]->busy, 1);
 		maple_add_packet(mdev[i], 0, MAPLE_COMMAND_DEVINFO, 0, NULL);
 		subdevice_map[i] = 0;
 	}
 
-	/* setup maplebus hardware */
-	maplebus_dma_reset();
-	/* initial detection */
+	maple_pnp_time = jiffies + HZ;
+	/* prepare initial queue */
 	maple_send();
-	maple_pnp_time = jiffies;
-	printk(KERN_INFO "Maple bus core now registered.\n");
+	dev_info(&maple_bus, "bus core now registered\n");
 
 	return 0;
 
@@ -871,7 +878,7 @@ cleanup_dma:
 	free_pages((unsigned long) maple_sendbuf, MAPLE_DMA_PAGES);
 
 cleanup_basic:
-	driver_unregister(&maple_dummy_driver.drv);
+	driver_unregister(&maple_unsupported_device.drv);
 
 cleanup_bus:
 	bus_unregister(&maple_bus_type);
@@ -880,7 +887,7 @@ cleanup_device:
 	device_unregister(&maple_bus);
 
 cleanup:
-	printk(KERN_INFO "Maple bus registration failed\n");
+	printk(KERN_ERR "Maple bus registration failed\n");
 	return retval;
 }
 /* Push init to later to ensure hardware gets detected */
diff --git a/include/linux/maple.h b/include/linux/maple.h
index c23d3f51ba40..d9a51b9b3300 100644
--- a/include/linux/maple.h
+++ b/include/linux/maple.h
@@ -8,33 +8,49 @@ extern struct bus_type maple_bus_type;
 
 /* Maple Bus command and response codes */
 enum maple_code {
-	MAPLE_RESPONSE_FILEERR = -5,
-	MAPLE_RESPONSE_AGAIN = -4,	/* request should be retransmitted */
-	MAPLE_RESPONSE_BADCMD = -3,
-	MAPLE_RESPONSE_BADFUNC = -2,
-	MAPLE_RESPONSE_NONE = -1,	/* unit didn't respond at all */
-	MAPLE_COMMAND_DEVINFO = 1,
-	MAPLE_COMMAND_ALLINFO = 2,
-	MAPLE_COMMAND_RESET = 3,
-	MAPLE_COMMAND_KILL = 4,
-	MAPLE_RESPONSE_DEVINFO = 5,
-	MAPLE_RESPONSE_ALLINFO = 6,
-	MAPLE_RESPONSE_OK = 7,
-	MAPLE_RESPONSE_DATATRF = 8,
-	MAPLE_COMMAND_GETCOND = 9,
-	MAPLE_COMMAND_GETMINFO = 10,
-	MAPLE_COMMAND_BREAD = 11,
-	MAPLE_COMMAND_BWRITE = 12,
-	MAPLE_COMMAND_SETCOND = 14
+	MAPLE_RESPONSE_FILEERR =	-5,
+	MAPLE_RESPONSE_AGAIN,	/* retransmit */
+	MAPLE_RESPONSE_BADCMD,
+	MAPLE_RESPONSE_BADFUNC,
+	MAPLE_RESPONSE_NONE,	/* unit didn't respond*/
+	MAPLE_COMMAND_DEVINFO =		1,
+	MAPLE_COMMAND_ALLINFO,
+	MAPLE_COMMAND_RESET,
+	MAPLE_COMMAND_KILL,
+	MAPLE_RESPONSE_DEVINFO,
+	MAPLE_RESPONSE_ALLINFO,
+	MAPLE_RESPONSE_OK,
+	MAPLE_RESPONSE_DATATRF,
+	MAPLE_COMMAND_GETCOND,
+	MAPLE_COMMAND_GETMINFO,
+	MAPLE_COMMAND_BREAD,
+	MAPLE_COMMAND_BWRITE,
+	MAPLE_COMMAND_BSYNC,
+	MAPLE_COMMAND_SETCOND,
+	MAPLE_COMMAND_MICCONTROL
+};
+
+enum maple_file_errors {
+	MAPLE_FILEERR_INVALID_PARTITION =	0x01000000,
+	MAPLE_FILEERR_PHASE_ERROR =		0x02000000,
+	MAPLE_FILEERR_INVALID_BLOCK =		0x04000000,
+	MAPLE_FILEERR_WRITE_ERROR =		0x08000000,
+	MAPLE_FILEERR_INVALID_WRITE_LENGTH =	0x10000000,
+	MAPLE_FILEERR_BAD_CRC = 		0x20000000
+};
+
+struct maple_buffer {
+	char bufx[0x400];
+	void *buf;
 };
 
 struct mapleq {
 	struct list_head list;
 	struct maple_device *dev;
-	void *sendbuf, *recvbuf, *recvbufdcsp;
+	struct maple_buffer *recvbuf;
+	void *sendbuf, *recvbuf_p2;
 	unsigned char length;
 	enum maple_code command;
-	struct mutex mutex;
 };
 
 struct maple_devinfo {
@@ -52,11 +68,15 @@ struct maple_device {
 	struct maple_driver *driver;
 	struct mapleq *mq;
 	void (*callback) (struct mapleq * mq);
+	void (*fileerr_handler)(struct maple_device *mdev, void *recvbuf);
+	int (*can_unload)(struct maple_device *mdev);
 	unsigned long when, interval, function;
 	struct maple_devinfo devinfo;
 	unsigned char port, unit;
 	char product_name[32];
 	char product_licence[64];
+	atomic_t busy;
+	wait_queue_head_t maple_wait;
 	struct device dev;
 };
 
@@ -72,7 +92,7 @@ void maple_getcond_callback(struct maple_device *dev,
 int maple_driver_register(struct maple_driver *);
 void maple_driver_unregister(struct maple_driver *);
 
-int maple_add_packet_sleeps(struct maple_device *mdev, u32 function,
+int maple_add_packet(struct maple_device *mdev, u32 function,
 	u32 command, u32 length, void *data);
 void maple_clear_dev(struct maple_device *mdev);
 
-- 
cgit v1.2.3


From 56bca31ff1989aa8b60f717e984b0e624f06324e Mon Sep 17 00:00:00 2001
From: Hannes Eder <hannes@hanneseder.net>
Date: Wed, 25 Feb 2009 10:32:52 +0000
Subject: inet fragments: fix sparse warning: context imbalance

Impact: Attribute function with __releases(...)

Fix this sparse warning:
  net/ipv4/inet_fragment.c:276:35: warning: context imbalance in 'inet_frag_find' - unexpected unlock

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_frag.h  | 3 ++-
 net/ipv4/inet_fragment.c | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index e081eefd6f47..39f2dc943908 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -61,7 +61,8 @@ void inet_frag_destroy(struct inet_frag_queue *q,
 				struct inet_frags *f, int *work);
 int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f);
 struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
-		struct inet_frags *f, void *key, unsigned int hash);
+		struct inet_frags *f, void *key, unsigned int hash)
+	__releases(&f->lock);
 
 static inline void inet_frag_put(struct inet_frag_queue *q, struct inet_frags *f)
 {
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 6c52e08f786e..eaf3e2c8646a 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -267,6 +267,7 @@ static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf,
 
 struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
 		struct inet_frags *f, void *key, unsigned int hash)
+	__releases(&f->lock)
 {
 	struct inet_frag_queue *q;
 	struct hlist_node *n;
-- 
cgit v1.2.3


From 8a7c4c77267b1c77296cd03e6704813cb70706d1 Mon Sep 17 00:00:00 2001
From: Andy Grover <andy.grover@oracle.com>
Date: Thu, 26 Feb 2009 23:41:38 -0800
Subject: RDS: Add AF and PF #defines for RDS sockets

RDS is a reliable datagram protocol used for IPC on Oracle
database clusters. This adds address and protocol family numbers
for it.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/socket.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'include')

diff --git a/include/linux/socket.h b/include/linux/socket.h
index 20fc4bbfca42..9c90dc403efc 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -179,6 +179,7 @@ struct ucred {
 #define AF_ASH		18	/* Ash				*/
 #define AF_ECONET	19	/* Acorn Econet			*/
 #define AF_ATMSVC	20	/* ATM SVCs			*/
+#define AF_RDS		21	/* RDS sockets 			*/
 #define AF_SNA		22	/* Linux SNA Project (nutters!) */
 #define AF_IRDA		23	/* IRDA sockets			*/
 #define AF_PPPOX	24	/* PPPoX sockets		*/
@@ -217,6 +218,7 @@ struct ucred {
 #define PF_ASH		AF_ASH
 #define PF_ECONET	AF_ECONET
 #define PF_ATMSVC	AF_ATMSVC
+#define PF_RDS		AF_RDS
 #define PF_SNA		AF_SNA
 #define PF_IRDA		AF_IRDA
 #define PF_PPPOX	AF_PPPOX
@@ -298,6 +300,7 @@ struct ucred {
 #define SOL_PPPOL2TP	273
 #define SOL_BLUETOOTH	274
 #define SOL_PNPIPE	275
+#define SOL_RDS		276
 
 /* IPX options */
 #define IPX_TYPE	1
-- 
cgit v1.2.3


From db49b9d26c1966c683efced9e1c37f391d8f8182 Mon Sep 17 00:00:00 2001
From: Andy Grover <andy.grover@oracle.com>
Date: Tue, 24 Feb 2009 15:30:42 +0000
Subject: RDS: Add userspace header

Applications include this header in order to use RDS sockets.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/rds.h | 250 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 250 insertions(+)
 create mode 100644 include/linux/rds.h

(limited to 'include')

diff --git a/include/linux/rds.h b/include/linux/rds.h
new file mode 100644
index 000000000000..d91dc91f5443
--- /dev/null
+++ b/include/linux/rds.h
@@ -0,0 +1,250 @@
+/*
+ * Copyright (c) 2008 Oracle.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS
+ * 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 _LINUX_RDS_H
+#define _LINUX_RDS_H
+
+#include <linux/types.h>
+
+/* These sparse annotated types shouldn't be in any user
+ * visible header file. We should clean this up rather
+ * than kludging around them. */
+#ifndef __KERNEL__
+#define __be16	u_int16_t
+#define __be32	u_int32_t
+#define __be64	u_int64_t
+#endif
+
+#define RDS_IB_ABI_VERSION		0x301
+
+/*
+ * setsockopt/getsockopt for SOL_RDS
+ */
+#define RDS_CANCEL_SENT_TO      	1
+#define RDS_GET_MR			2
+#define RDS_FREE_MR			3
+/* deprecated: RDS_BARRIER 4 */
+#define RDS_RECVERR			5
+#define RDS_CONG_MONITOR		6
+
+/*
+ * Control message types for SOL_RDS.
+ *
+ * CMSG_RDMA_ARGS (sendmsg)
+ *	Request a RDMA transfer to/from the specified
+ *	memory ranges.
+ *	The cmsg_data is a struct rds_rdma_args.
+ * RDS_CMSG_RDMA_DEST (recvmsg, sendmsg)
+ *	Kernel informs application about intended
+ *	source/destination of a RDMA transfer
+ * RDS_CMSG_RDMA_MAP (sendmsg)
+ *	Application asks kernel to map the given
+ *	memory range into a IB MR, and send the
+ *	R_Key along in an RDS extension header.
+ *	The cmsg_data is a struct rds_get_mr_args,
+ *	the same as for the GET_MR setsockopt.
+ * RDS_CMSG_RDMA_STATUS (recvmsg)
+ *	Returns the status of a completed RDMA operation.
+ */
+#define RDS_CMSG_RDMA_ARGS		1
+#define RDS_CMSG_RDMA_DEST		2
+#define RDS_CMSG_RDMA_MAP		3
+#define RDS_CMSG_RDMA_STATUS		4
+#define RDS_CMSG_CONG_UPDATE		5
+
+#define RDS_INFO_FIRST			10000
+#define RDS_INFO_COUNTERS		10000
+#define RDS_INFO_CONNECTIONS		10001
+/* 10002 aka RDS_INFO_FLOWS is deprecated */
+#define RDS_INFO_SEND_MESSAGES		10003
+#define RDS_INFO_RETRANS_MESSAGES       10004
+#define RDS_INFO_RECV_MESSAGES          10005
+#define RDS_INFO_SOCKETS                10006
+#define RDS_INFO_TCP_SOCKETS            10007
+#define RDS_INFO_IB_CONNECTIONS		10008
+#define RDS_INFO_CONNECTION_STATS	10009
+#define RDS_INFO_IWARP_CONNECTIONS	10010
+#define RDS_INFO_LAST			10010
+
+struct rds_info_counter {
+	u_int8_t	name[32];
+	u_int64_t	value;
+} __attribute__((packed));
+
+#define RDS_INFO_CONNECTION_FLAG_SENDING	0x01
+#define RDS_INFO_CONNECTION_FLAG_CONNECTING	0x02
+#define RDS_INFO_CONNECTION_FLAG_CONNECTED	0x04
+
+#define TRANSNAMSIZ	16
+
+struct rds_info_connection {
+	u_int64_t	next_tx_seq;
+	u_int64_t	next_rx_seq;
+	__be32		laddr;
+	__be32		faddr;
+	u_int8_t	transport[TRANSNAMSIZ];		/* null term ascii */
+	u_int8_t	flags;
+} __attribute__((packed));
+
+struct rds_info_flow {
+	__be32		laddr;
+	__be32		faddr;
+	u_int32_t	bytes;
+	__be16		lport;
+	__be16		fport;
+} __attribute__((packed));
+
+#define RDS_INFO_MESSAGE_FLAG_ACK               0x01
+#define RDS_INFO_MESSAGE_FLAG_FAST_ACK          0x02
+
+struct rds_info_message {
+	u_int64_t	seq;
+	u_int32_t	len;
+	__be32		laddr;
+	__be32		faddr;
+	__be16		lport;
+	__be16		fport;
+	u_int8_t	flags;
+} __attribute__((packed));
+
+struct rds_info_socket {
+	u_int32_t	sndbuf;
+	__be32		bound_addr;
+	__be32		connected_addr;
+	__be16		bound_port;
+	__be16		connected_port;
+	u_int32_t	rcvbuf;
+	u_int64_t	inum;
+} __attribute__((packed));
+
+#define RDS_IB_GID_LEN	16
+struct rds_info_rdma_connection {
+	__be32		src_addr;
+	__be32		dst_addr;
+	uint8_t		src_gid[RDS_IB_GID_LEN];
+	uint8_t		dst_gid[RDS_IB_GID_LEN];
+
+	uint32_t	max_send_wr;
+	uint32_t	max_recv_wr;
+	uint32_t	max_send_sge;
+	uint32_t	rdma_mr_max;
+	uint32_t	rdma_mr_size;
+};
+
+/*
+ * Congestion monitoring.
+ * Congestion control in RDS happens at the host connection
+ * level by exchanging a bitmap marking congested ports.
+ * By default, a process sleeping in poll() is always woken
+ * up when the congestion map is updated.
+ * With explicit monitoring, an application can have more
+ * fine-grained control.
+ * The application installs a 64bit mask value in the socket,
+ * where each bit corresponds to a group of ports.
+ * When a congestion update arrives, RDS checks the set of
+ * ports that are now uncongested against the list bit mask
+ * installed in the socket, and if they overlap, we queue a
+ * cong_notification on the socket.
+ *
+ * To install the congestion monitor bitmask, use RDS_CONG_MONITOR
+ * with the 64bit mask.
+ * Congestion updates are received via RDS_CMSG_CONG_UPDATE
+ * control messages.
+ *
+ * The correspondence between bits and ports is
+ *	1 << (portnum % 64)
+ */
+#define RDS_CONG_MONITOR_SIZE	64
+#define RDS_CONG_MONITOR_BIT(port)  (((unsigned int) port) % RDS_CONG_MONITOR_SIZE)
+#define RDS_CONG_MONITOR_MASK(port) (1ULL << RDS_CONG_MONITOR_BIT(port))
+
+/*
+ * RDMA related types
+ */
+
+/*
+ * This encapsulates a remote memory location.
+ * In the current implementation, it contains the R_Key
+ * of the remote memory region, and the offset into it
+ * (so that the application does not have to worry about
+ * alignment).
+ */
+typedef u_int64_t	rds_rdma_cookie_t;
+
+struct rds_iovec {
+	u_int64_t	addr;
+	u_int64_t	bytes;
+};
+
+struct rds_get_mr_args {
+	struct rds_iovec vec;
+	u_int64_t	cookie_addr;
+	uint64_t	flags;
+};
+
+struct rds_free_mr_args {
+	rds_rdma_cookie_t cookie;
+	u_int64_t	flags;
+};
+
+struct rds_rdma_args {
+	rds_rdma_cookie_t cookie;
+	struct rds_iovec remote_vec;
+	u_int64_t	local_vec_addr;
+	u_int64_t	nr_local;
+	u_int64_t	flags;
+	u_int64_t	user_token;
+};
+
+struct rds_rdma_notify {
+	u_int64_t	user_token;
+	int32_t		status;
+};
+
+#define RDS_RDMA_SUCCESS	0
+#define RDS_RDMA_REMOTE_ERROR	1
+#define RDS_RDMA_CANCELED	2
+#define RDS_RDMA_DROPPED	3
+#define RDS_RDMA_OTHER_ERROR	4
+
+/*
+ * Common set of flags for all RDMA related structs
+ */
+#define RDS_RDMA_READWRITE	0x0001
+#define RDS_RDMA_FENCE		0x0002	/* use FENCE for immediate send */
+#define RDS_RDMA_INVALIDATE	0x0004	/* invalidate R_Key after freeing MR */
+#define RDS_RDMA_USE_ONCE	0x0008	/* free MR after use */
+#define RDS_RDMA_DONTWAIT	0x0010	/* Don't wait in SET_BARRIER */
+#define RDS_RDMA_NOTIFY_ME	0x0020	/* Notify when operation completes */
+
+#endif /* IB_RDS_H */
-- 
cgit v1.2.3


From bdaa6e8062d7f8085d8ed94ff88c99406ad53d79 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@igel.co.jp>
Date: Tue, 24 Feb 2009 22:58:57 +0900
Subject: sh: multiple vectors per irq - base

Instead of keeping the single vector -> single linux irq mapping
we extend the intc code to support merging of vectors to a single
linux irq. This helps processors such as sh7750, sh7780 and sh7785
which have more vectors than masking ability. With this patch in
place we can modify the intc tables to use one irq per maskable
irq source. Please note the following:

 - If multiple vectors share the same enum then only the
   first vector will be available as a linux irq.

 - Drivers may need to be rewritten to get pending irq
   source from the hardware block instead of irq number.

This patch together with the sh7785 specific intc tables solves
DMA controller irq issues related to buggy interrupt masking.

Reported-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/kernel/irq.c    |  2 +-
 drivers/sh/intc.c       | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/sh_intc.h |  1 +
 3 files changed, 49 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 64b7690c664c..90d63aefd275 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -106,7 +106,7 @@ asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs)
 	}
 #endif
 
-	irq = irq_demux(evt2irq(irq));
+	irq = irq_demux(intc_evt2irq(irq));
 
 #ifdef CONFIG_IRQSTACKS
 	curctx = (union irq_ctx *)current_thread_info();
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 58d24c5a76ce..d7b8959d9d92 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -568,6 +568,10 @@ static void __init intc_register_irq(struct intc_desc *desc,
 	if (!data[0] && data[1])
 		primary = 1;
 
+	if (!data[0] && !data[1])
+		pr_warning("intc: missing unique irq mask for 0x%04x\n",
+			   irq2evt(irq));
+
 	data[0] = data[0] ? data[0] : intc_mask_data(desc, d, enum_id, 1);
 	data[1] = data[1] ? data[1] : intc_prio_data(desc, d, enum_id, 1);
 
@@ -641,6 +645,17 @@ static unsigned int __init save_reg(struct intc_desc_int *d,
 	return 0;
 }
 
+static unsigned char *intc_evt2irq_table;
+
+unsigned int intc_evt2irq(unsigned int vector)
+{
+	unsigned int irq = evt2irq(vector);
+
+	if (intc_evt2irq_table && intc_evt2irq_table[irq])
+		irq = intc_evt2irq_table[irq];
+
+	return irq;
+}
 
 void __init register_intc_controller(struct intc_desc *desc)
 {
@@ -705,9 +720,41 @@ void __init register_intc_controller(struct intc_desc *desc)
 
 	BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */
 
+	/* keep the first vector only if same enum is used multiple times */
+	for (i = 0; i < desc->nr_vectors; i++) {
+		struct intc_vect *vect = desc->vectors + i;
+		int first_irq = evt2irq(vect->vect);
+
+		if (!vect->enum_id)
+			continue;
+
+		for (k = i + 1; k < desc->nr_vectors; k++) {
+			struct intc_vect *vect2 = desc->vectors + k;
+
+			if (vect->enum_id != vect2->enum_id)
+				continue;
+
+			vect2->enum_id = 0;
+
+			if (!intc_evt2irq_table)
+				intc_evt2irq_table = alloc_bootmem(NR_IRQS);
+
+			if (!intc_evt2irq_table) {
+				pr_warning("intc: cannot allocate evt2irq!\n");
+				continue;
+			}
+
+			intc_evt2irq_table[evt2irq(vect2->vect)] = first_irq;
+		}
+	}
+
+	/* register the vectors one by one */
 	for (i = 0; i < desc->nr_vectors; i++) {
 		struct intc_vect *vect = desc->vectors + i;
 
+		if (!vect->enum_id)
+			continue;
+
 		intc_register_irq(desc, d, vect->enum_id, evt2irq(vect->vect));
 	}
 }
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h
index 68e212ff9dde..eb1423a0078d 100644
--- a/include/linux/sh_intc.h
+++ b/include/linux/sh_intc.h
@@ -85,6 +85,7 @@ struct intc_desc symbol __initdata = {					\
 }
 #endif
 
+unsigned int intc_evt2irq(unsigned int vector);
 void __init register_intc_controller(struct intc_desc *desc);
 int intc_set_priority(unsigned int irq, unsigned int prio);
 
-- 
cgit v1.2.3


From 7020cb0fe216fdcec246cdc2412614a3190fbb2f Mon Sep 17 00:00:00 2001
From: Ramachandra K <ramachandra.kuchimanchi@qlogic.com>
Date: Fri, 27 Feb 2009 10:33:12 -0800
Subject: IB/mad: Fix RMPP header RRespTime manipulation

Fix ib_set_rmpp_flags() to use the correct bit mask for RRespTime.  In
the 8-bit field of the RMPP header, the first 5 bits are RRespTime and
next 3 bits are RMPPFlags. Hence to retain the first 5 bits, the mask
should be 0xF8 instead of 0xF1.

ack_recv()-->format_ack() calls ib_set_rmpp_flags() and due to the
incorrect ANDing with 0xF1, RRespTime got changed incorrectly and RMPP
Acks sent back always had a RRespTime of 0x1E (30) which caused the
other end to consider the time outs to be approximately 4297 seconds
(i.e. in the order of 4*2^30) instead of the usual ~4 seconds (order
of 4*2^20).

Signed-off-by: Ramachandra K <ramachandra.kuchimanchi@qlogic.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 include/rdma/ib_mad.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index 5f6c40fffcf4..1a0f409f1700 100644
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -290,7 +290,7 @@ static inline void ib_set_rmpp_resptime(struct ib_rmpp_hdr *rmpp_hdr, u8 rtime)
  */
 static inline void ib_set_rmpp_flags(struct ib_rmpp_hdr *rmpp_hdr, u8 flags)
 {
-	rmpp_hdr->rmpp_rtime_flags = (rmpp_hdr->rmpp_rtime_flags & 0xF1) |
+	rmpp_hdr->rmpp_rtime_flags = (rmpp_hdr->rmpp_rtime_flags & 0xF8) |
 				     (flags & 0x7);
 }
 
-- 
cgit v1.2.3


From f3734ee6df3ac57151e02d091f47d5e52e646539 Mon Sep 17 00:00:00 2001
From: Dan Williams <dcbw@redhat.com>
Date: Thu, 12 Feb 2009 12:32:55 -0500
Subject: make net/ieee80211.h private to ipw2x00

Only ipw2x00 now uses it.  Reduce confusion.  Profit!

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ipw2x00/Kconfig         |    2 +-
 drivers/net/wireless/ipw2x00/ieee80211.h     | 1185 ++++++++++++++++++++++++++
 drivers/net/wireless/ipw2x00/ipw2100.h       |    4 +-
 drivers/net/wireless/ipw2x00/ipw2200.h       |    3 +-
 drivers/net/wireless/ipw2x00/libipw_geo.c    |    2 +-
 drivers/net/wireless/ipw2x00/libipw_module.c |    2 +-
 drivers/net/wireless/ipw2x00/libipw_rx.c     |    3 +-
 drivers/net/wireless/ipw2x00/libipw_tx.c     |    2 +-
 drivers/net/wireless/ipw2x00/libipw_wx.c     |    3 +-
 include/net/ieee80211.h                      | 1185 --------------------------
 10 files changed, 1197 insertions(+), 1194 deletions(-)
 create mode 100644 drivers/net/wireless/ipw2x00/ieee80211.h
 delete mode 100644 include/net/ieee80211.h

(limited to 'include')

diff --git a/drivers/net/wireless/ipw2x00/Kconfig b/drivers/net/wireless/ipw2x00/Kconfig
index 1d5dc3e9c5fb..85cc79995f6f 100644
--- a/drivers/net/wireless/ipw2x00/Kconfig
+++ b/drivers/net/wireless/ipw2x00/Kconfig
@@ -186,7 +186,7 @@ config LIBIPW_DEBUG
 	  % echo 0x00000FFO > /proc/net/ieee80211/debug_level
 
 	  For a list of values you can assign to debug_level, you
-	  can look at the bit mask values in <net/ieee80211.h>
+	  can look at the bit mask values in ieee80211.h
 
 	  If you are not trying to debug or develop the libipw
 	  component, you most likely want to say N here.
diff --git a/drivers/net/wireless/ipw2x00/ieee80211.h b/drivers/net/wireless/ipw2x00/ieee80211.h
new file mode 100644
index 000000000000..adb7cf31f781
--- /dev/null
+++ b/drivers/net/wireless/ipw2x00/ieee80211.h
@@ -0,0 +1,1185 @@
+/*
+ * Merged with mainline ieee80211.h in Aug 2004.  Original ieee802_11
+ * remains copyright by the original authors
+ *
+ * Portions of the merged code are based on Host AP (software wireless
+ * LAN access point) driver for Intersil Prism2/2.5/3.
+ *
+ * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
+ * <j@w1.fi>
+ * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
+ *
+ * Adaption to a generic IEEE 802.11 stack by James Ketrenos
+ * <jketreno@linux.intel.com>
+ * Copyright (c) 2004-2005, Intel Corporation
+ *
+ * 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. See README and COPYING for
+ * more details.
+ *
+ * API Version History
+ * 1.0.x -- Initial version
+ * 1.1.x -- Added radiotap, QoS, TIM, ieee80211_geo APIs,
+ *          various structure changes, and crypto API init method
+ */
+#ifndef IEEE80211_H
+#define IEEE80211_H
+#include <linux/if_ether.h>	/* ETH_ALEN */
+#include <linux/kernel.h>	/* ARRAY_SIZE */
+#include <linux/wireless.h>
+#include <linux/ieee80211.h>
+
+#include <net/lib80211.h>
+
+#define IEEE80211_VERSION "git-1.1.13"
+
+#define IEEE80211_DATA_LEN		2304
+/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
+   6.2.1.1.2.
+
+   The figure in section 7.1.2 suggests a body size of up to 2312
+   bytes is allowed, which is a bit confusing, I suspect this
+   represents the 2304 bytes of real data, plus a possible 8 bytes of
+   WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
+
+#define IEEE80211_1ADDR_LEN 10
+#define IEEE80211_2ADDR_LEN 16
+#define IEEE80211_3ADDR_LEN 24
+#define IEEE80211_4ADDR_LEN 30
+#define IEEE80211_FCS_LEN    4
+#define IEEE80211_HLEN			(IEEE80211_4ADDR_LEN)
+#define IEEE80211_FRAME_LEN		(IEEE80211_DATA_LEN + IEEE80211_HLEN)
+
+#define MIN_FRAG_THRESHOLD     256U
+#define	MAX_FRAG_THRESHOLD     2346U
+
+/* Frame control field constants */
+#define IEEE80211_FCTL_VERS		0x0003
+#define IEEE80211_FCTL_FTYPE		0x000c
+#define IEEE80211_FCTL_STYPE		0x00f0
+#define IEEE80211_FCTL_TODS		0x0100
+#define IEEE80211_FCTL_FROMDS		0x0200
+#define IEEE80211_FCTL_MOREFRAGS	0x0400
+#define IEEE80211_FCTL_RETRY		0x0800
+#define IEEE80211_FCTL_PM		0x1000
+#define IEEE80211_FCTL_MOREDATA		0x2000
+#define IEEE80211_FCTL_PROTECTED	0x4000
+#define IEEE80211_FCTL_ORDER		0x8000
+
+#define IEEE80211_FTYPE_MGMT		0x0000
+#define IEEE80211_FTYPE_CTL		0x0004
+#define IEEE80211_FTYPE_DATA		0x0008
+
+/* management */
+#define IEEE80211_STYPE_ASSOC_REQ	0x0000
+#define IEEE80211_STYPE_ASSOC_RESP 	0x0010
+#define IEEE80211_STYPE_REASSOC_REQ	0x0020
+#define IEEE80211_STYPE_REASSOC_RESP	0x0030
+#define IEEE80211_STYPE_PROBE_REQ	0x0040
+#define IEEE80211_STYPE_PROBE_RESP	0x0050
+#define IEEE80211_STYPE_BEACON		0x0080
+#define IEEE80211_STYPE_ATIM		0x0090
+#define IEEE80211_STYPE_DISASSOC	0x00A0
+#define IEEE80211_STYPE_AUTH		0x00B0
+#define IEEE80211_STYPE_DEAUTH		0x00C0
+#define IEEE80211_STYPE_ACTION		0x00D0
+
+/* control */
+#define IEEE80211_STYPE_PSPOLL		0x00A0
+#define IEEE80211_STYPE_RTS		0x00B0
+#define IEEE80211_STYPE_CTS		0x00C0
+#define IEEE80211_STYPE_ACK		0x00D0
+#define IEEE80211_STYPE_CFEND		0x00E0
+#define IEEE80211_STYPE_CFENDACK	0x00F0
+
+/* data */
+#define IEEE80211_STYPE_DATA		0x0000
+#define IEEE80211_STYPE_DATA_CFACK	0x0010
+#define IEEE80211_STYPE_DATA_CFPOLL	0x0020
+#define IEEE80211_STYPE_DATA_CFACKPOLL	0x0030
+#define IEEE80211_STYPE_NULLFUNC	0x0040
+#define IEEE80211_STYPE_CFACK		0x0050
+#define IEEE80211_STYPE_CFPOLL		0x0060
+#define IEEE80211_STYPE_CFACKPOLL	0x0070
+#define IEEE80211_STYPE_QOS_DATA        0x0080
+
+#define IEEE80211_SCTL_FRAG		0x000F
+#define IEEE80211_SCTL_SEQ		0xFFF0
+
+/* QOS control */
+#define IEEE80211_QCTL_TID		0x000F
+
+/* debug macros */
+
+#ifdef CONFIG_IEEE80211_DEBUG
+extern u32 ieee80211_debug_level;
+#define IEEE80211_DEBUG(level, fmt, args...) \
+do { if (ieee80211_debug_level & (level)) \
+  printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
+         in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
+static inline bool ieee80211_ratelimit_debug(u32 level)
+{
+	return (ieee80211_debug_level & level) && net_ratelimit();
+}
+#else
+#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
+static inline bool ieee80211_ratelimit_debug(u32 level)
+{
+	return false;
+}
+#endif				/* CONFIG_IEEE80211_DEBUG */
+
+/*
+ * To use the debug system:
+ *
+ * If you are defining a new debug classification, simply add it to the #define
+ * list here in the form of:
+ *
+ * #define IEEE80211_DL_xxxx VALUE
+ *
+ * shifting value to the left one bit from the previous entry.  xxxx should be
+ * the name of the classification (for example, WEP)
+ *
+ * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
+ * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
+ * to send output to that classification.
+ *
+ * To add your debug level to the list of levels seen when you perform
+ *
+ * % cat /proc/net/ieee80211/debug_level
+ *
+ * you simply need to add your entry to the ieee80211_debug_level array.
+ *
+ * If you do not see debug_level in /proc/net/ieee80211 then you do not have
+ * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
+ *
+ */
+
+#define IEEE80211_DL_INFO          (1<<0)
+#define IEEE80211_DL_WX            (1<<1)
+#define IEEE80211_DL_SCAN          (1<<2)
+#define IEEE80211_DL_STATE         (1<<3)
+#define IEEE80211_DL_MGMT          (1<<4)
+#define IEEE80211_DL_FRAG          (1<<5)
+#define IEEE80211_DL_DROP          (1<<7)
+
+#define IEEE80211_DL_TX            (1<<8)
+#define IEEE80211_DL_RX            (1<<9)
+#define IEEE80211_DL_QOS           (1<<31)
+
+#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
+#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
+#define IEEE80211_DEBUG_INFO(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
+
+#define IEEE80211_DEBUG_WX(f, a...)     IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
+#define IEEE80211_DEBUG_SCAN(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
+#define IEEE80211_DEBUG_STATE(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
+#define IEEE80211_DEBUG_MGMT(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
+#define IEEE80211_DEBUG_FRAG(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
+#define IEEE80211_DEBUG_DROP(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
+#define IEEE80211_DEBUG_TX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
+#define IEEE80211_DEBUG_RX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
+#define IEEE80211_DEBUG_QOS(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>	/* ARPHRD_ETHER */
+
+#ifndef WIRELESS_SPY
+#define WIRELESS_SPY		/* enable iwspy support */
+#endif
+#include <net/iw_handler.h>	/* new driver API */
+
+#define ETH_P_PREAUTH 0x88C7	/* IEEE 802.11i pre-authentication */
+
+#ifndef ETH_P_80211_RAW
+#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
+#endif
+
+/* IEEE 802.11 defines */
+
+#define P80211_OUI_LEN 3
+
+struct ieee80211_snap_hdr {
+
+	u8 dsap;		/* always 0xAA */
+	u8 ssap;		/* always 0xAA */
+	u8 ctrl;		/* always 0x03 */
+	u8 oui[P80211_OUI_LEN];	/* organizational universal id */
+
+} __attribute__ ((packed));
+
+#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
+
+#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
+#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
+#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
+
+#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
+#define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)
+
+/* Action categories - 802.11h */
+enum ieee80211_actioncategories {
+	WLAN_ACTION_SPECTRUM_MGMT = 0,
+	/* Reserved 1-127  */
+	/* Error    128-255 */
+};
+
+/* Action details - 802.11h */
+enum ieee80211_actiondetails {
+	WLAN_ACTION_CATEGORY_MEASURE_REQUEST = 0,
+	WLAN_ACTION_CATEGORY_MEASURE_REPORT = 1,
+	WLAN_ACTION_CATEGORY_TPC_REQUEST = 2,
+	WLAN_ACTION_CATEGORY_TPC_REPORT = 3,
+	WLAN_ACTION_CATEGORY_CHANNEL_SWITCH = 4,
+	/* 5 - 255 Reserved */
+};
+
+#define IEEE80211_STATMASK_SIGNAL (1<<0)
+#define IEEE80211_STATMASK_RSSI (1<<1)
+#define IEEE80211_STATMASK_NOISE (1<<2)
+#define IEEE80211_STATMASK_RATE (1<<3)
+#define IEEE80211_STATMASK_WEMASK 0x7
+
+#define IEEE80211_CCK_MODULATION    (1<<0)
+#define IEEE80211_OFDM_MODULATION   (1<<1)
+
+#define IEEE80211_24GHZ_BAND     (1<<0)
+#define IEEE80211_52GHZ_BAND     (1<<1)
+
+#define IEEE80211_CCK_RATE_1MB		        0x02
+#define IEEE80211_CCK_RATE_2MB		        0x04
+#define IEEE80211_CCK_RATE_5MB		        0x0B
+#define IEEE80211_CCK_RATE_11MB		        0x16
+#define IEEE80211_OFDM_RATE_6MB		        0x0C
+#define IEEE80211_OFDM_RATE_9MB		        0x12
+#define IEEE80211_OFDM_RATE_12MB		0x18
+#define IEEE80211_OFDM_RATE_18MB		0x24
+#define IEEE80211_OFDM_RATE_24MB		0x30
+#define IEEE80211_OFDM_RATE_36MB		0x48
+#define IEEE80211_OFDM_RATE_48MB		0x60
+#define IEEE80211_OFDM_RATE_54MB		0x6C
+#define IEEE80211_BASIC_RATE_MASK		0x80
+
+#define IEEE80211_CCK_RATE_1MB_MASK		(1<<0)
+#define IEEE80211_CCK_RATE_2MB_MASK		(1<<1)
+#define IEEE80211_CCK_RATE_5MB_MASK		(1<<2)
+#define IEEE80211_CCK_RATE_11MB_MASK		(1<<3)
+#define IEEE80211_OFDM_RATE_6MB_MASK		(1<<4)
+#define IEEE80211_OFDM_RATE_9MB_MASK		(1<<5)
+#define IEEE80211_OFDM_RATE_12MB_MASK		(1<<6)
+#define IEEE80211_OFDM_RATE_18MB_MASK		(1<<7)
+#define IEEE80211_OFDM_RATE_24MB_MASK		(1<<8)
+#define IEEE80211_OFDM_RATE_36MB_MASK		(1<<9)
+#define IEEE80211_OFDM_RATE_48MB_MASK		(1<<10)
+#define IEEE80211_OFDM_RATE_54MB_MASK		(1<<11)
+
+#define IEEE80211_CCK_RATES_MASK	        0x0000000F
+#define IEEE80211_CCK_BASIC_RATES_MASK	(IEEE80211_CCK_RATE_1MB_MASK | \
+	IEEE80211_CCK_RATE_2MB_MASK)
+#define IEEE80211_CCK_DEFAULT_RATES_MASK	(IEEE80211_CCK_BASIC_RATES_MASK | \
+        IEEE80211_CCK_RATE_5MB_MASK | \
+        IEEE80211_CCK_RATE_11MB_MASK)
+
+#define IEEE80211_OFDM_RATES_MASK		0x00000FF0
+#define IEEE80211_OFDM_BASIC_RATES_MASK	(IEEE80211_OFDM_RATE_6MB_MASK | \
+	IEEE80211_OFDM_RATE_12MB_MASK | \
+	IEEE80211_OFDM_RATE_24MB_MASK)
+#define IEEE80211_OFDM_DEFAULT_RATES_MASK	(IEEE80211_OFDM_BASIC_RATES_MASK | \
+	IEEE80211_OFDM_RATE_9MB_MASK  | \
+	IEEE80211_OFDM_RATE_18MB_MASK | \
+	IEEE80211_OFDM_RATE_36MB_MASK | \
+	IEEE80211_OFDM_RATE_48MB_MASK | \
+	IEEE80211_OFDM_RATE_54MB_MASK)
+#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
+                                IEEE80211_CCK_DEFAULT_RATES_MASK)
+
+#define IEEE80211_NUM_OFDM_RATES	    8
+#define IEEE80211_NUM_CCK_RATES	            4
+#define IEEE80211_OFDM_SHIFT_MASK_A         4
+
+/* NOTE: This data is for statistical purposes; not all hardware provides this
+ *       information for frames received.
+ *       For ieee80211_rx_mgt, you need to set at least the 'len' parameter.
+ */
+struct ieee80211_rx_stats {
+	u32 mac_time;
+	s8 rssi;
+	u8 signal;
+	u8 noise;
+	u16 rate;		/* in 100 kbps */
+	u8 received_channel;
+	u8 control;
+	u8 mask;
+	u8 freq;
+	u16 len;
+	u64 tsf;
+	u32 beacon_time;
+};
+
+/* IEEE 802.11 requires that STA supports concurrent reception of at least
+ * three fragmented frames. This define can be increased to support more
+ * concurrent frames, but it should be noted that each entry can consume about
+ * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
+#define IEEE80211_FRAG_CACHE_LEN 4
+
+struct ieee80211_frag_entry {
+	unsigned long first_frag_time;
+	unsigned int seq;
+	unsigned int last_frag;
+	struct sk_buff *skb;
+	u8 src_addr[ETH_ALEN];
+	u8 dst_addr[ETH_ALEN];
+};
+
+struct ieee80211_stats {
+	unsigned int tx_unicast_frames;
+	unsigned int tx_multicast_frames;
+	unsigned int tx_fragments;
+	unsigned int tx_unicast_octets;
+	unsigned int tx_multicast_octets;
+	unsigned int tx_deferred_transmissions;
+	unsigned int tx_single_retry_frames;
+	unsigned int tx_multiple_retry_frames;
+	unsigned int tx_retry_limit_exceeded;
+	unsigned int tx_discards;
+	unsigned int rx_unicast_frames;
+	unsigned int rx_multicast_frames;
+	unsigned int rx_fragments;
+	unsigned int rx_unicast_octets;
+	unsigned int rx_multicast_octets;
+	unsigned int rx_fcs_errors;
+	unsigned int rx_discards_no_buffer;
+	unsigned int tx_discards_wrong_sa;
+	unsigned int rx_discards_undecryptable;
+	unsigned int rx_message_in_msg_fragments;
+	unsigned int rx_message_in_bad_msg_fragments;
+};
+
+struct ieee80211_device;
+
+#define SEC_KEY_1		(1<<0)
+#define SEC_KEY_2		(1<<1)
+#define SEC_KEY_3		(1<<2)
+#define SEC_KEY_4		(1<<3)
+#define SEC_ACTIVE_KEY		(1<<4)
+#define SEC_AUTH_MODE		(1<<5)
+#define SEC_UNICAST_GROUP	(1<<6)
+#define SEC_LEVEL		(1<<7)
+#define SEC_ENABLED		(1<<8)
+#define SEC_ENCRYPT		(1<<9)
+
+#define SEC_LEVEL_0		0	/* None */
+#define SEC_LEVEL_1		1	/* WEP 40 and 104 bit */
+#define SEC_LEVEL_2		2	/* Level 1 + TKIP */
+#define SEC_LEVEL_2_CKIP	3	/* Level 1 + CKIP */
+#define SEC_LEVEL_3		4	/* Level 2 + CCMP */
+
+#define SEC_ALG_NONE		0
+#define SEC_ALG_WEP		1
+#define SEC_ALG_TKIP		2
+#define SEC_ALG_CCMP		3
+
+#define WEP_KEYS		4
+#define WEP_KEY_LEN		13
+#define SCM_KEY_LEN		32
+#define SCM_TEMPORAL_KEY_LENGTH	16
+
+struct ieee80211_security {
+	u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
+	u8 auth_mode;
+	u8 encode_alg[WEP_KEYS];
+	u8 key_sizes[WEP_KEYS];
+	u8 keys[WEP_KEYS][SCM_KEY_LEN];
+	u8 level;
+	u16 flags;
+} __attribute__ ((packed));
+
+/*
+
+ 802.11 data frame from AP
+
+      ,-------------------------------------------------------------------.
+Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
+      |------|------|---------|---------|---------|------|---------|------|
+Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
+      |      | tion | (BSSID) |         |         | ence |  data   |      |
+      `-------------------------------------------------------------------'
+
+Total: 28-2340 bytes
+
+*/
+
+#define BEACON_PROBE_SSID_ID_POSITION 12
+
+/* Management Frame Information Element Types */
+enum ieee80211_mfie {
+	MFIE_TYPE_SSID = 0,
+	MFIE_TYPE_RATES = 1,
+	MFIE_TYPE_FH_SET = 2,
+	MFIE_TYPE_DS_SET = 3,
+	MFIE_TYPE_CF_SET = 4,
+	MFIE_TYPE_TIM = 5,
+	MFIE_TYPE_IBSS_SET = 6,
+	MFIE_TYPE_COUNTRY = 7,
+	MFIE_TYPE_HOP_PARAMS = 8,
+	MFIE_TYPE_HOP_TABLE = 9,
+	MFIE_TYPE_REQUEST = 10,
+	MFIE_TYPE_CHALLENGE = 16,
+	MFIE_TYPE_POWER_CONSTRAINT = 32,
+	MFIE_TYPE_POWER_CAPABILITY = 33,
+	MFIE_TYPE_TPC_REQUEST = 34,
+	MFIE_TYPE_TPC_REPORT = 35,
+	MFIE_TYPE_SUPP_CHANNELS = 36,
+	MFIE_TYPE_CSA = 37,
+	MFIE_TYPE_MEASURE_REQUEST = 38,
+	MFIE_TYPE_MEASURE_REPORT = 39,
+	MFIE_TYPE_QUIET = 40,
+	MFIE_TYPE_IBSS_DFS = 41,
+	MFIE_TYPE_ERP_INFO = 42,
+	MFIE_TYPE_RSN = 48,
+	MFIE_TYPE_RATES_EX = 50,
+	MFIE_TYPE_GENERIC = 221,
+	MFIE_TYPE_QOS_PARAMETER = 222,
+};
+
+struct ieee80211_hdr_1addr {
+	__le16 frame_ctl;
+	__le16 duration_id;
+	u8 addr1[ETH_ALEN];
+	u8 payload[0];
+} __attribute__ ((packed));
+
+struct ieee80211_hdr_2addr {
+	__le16 frame_ctl;
+	__le16 duration_id;
+	u8 addr1[ETH_ALEN];
+	u8 addr2[ETH_ALEN];
+	u8 payload[0];
+} __attribute__ ((packed));
+
+struct ieee80211_hdr_3addr {
+	__le16 frame_ctl;
+	__le16 duration_id;
+	u8 addr1[ETH_ALEN];
+	u8 addr2[ETH_ALEN];
+	u8 addr3[ETH_ALEN];
+	__le16 seq_ctl;
+	u8 payload[0];
+} __attribute__ ((packed));
+
+struct ieee80211_hdr_4addr {
+	__le16 frame_ctl;
+	__le16 duration_id;
+	u8 addr1[ETH_ALEN];
+	u8 addr2[ETH_ALEN];
+	u8 addr3[ETH_ALEN];
+	__le16 seq_ctl;
+	u8 addr4[ETH_ALEN];
+	u8 payload[0];
+} __attribute__ ((packed));
+
+struct ieee80211_hdr_3addrqos {
+	__le16 frame_ctl;
+	__le16 duration_id;
+	u8 addr1[ETH_ALEN];
+	u8 addr2[ETH_ALEN];
+	u8 addr3[ETH_ALEN];
+	__le16 seq_ctl;
+	u8 payload[0];
+	__le16 qos_ctl;
+} __attribute__ ((packed));
+
+struct ieee80211_info_element {
+	u8 id;
+	u8 len;
+	u8 data[0];
+} __attribute__ ((packed));
+
+/*
+ * These are the data types that can make up management packets
+ *
+	u16 auth_algorithm;
+	u16 auth_sequence;
+	u16 beacon_interval;
+	u16 capability;
+	u8 current_ap[ETH_ALEN];
+	u16 listen_interval;
+	struct {
+		u16 association_id:14, reserved:2;
+	} __attribute__ ((packed));
+	u32 time_stamp[2];
+	u16 reason;
+	u16 status;
+*/
+
+struct ieee80211_auth {
+	struct ieee80211_hdr_3addr header;
+	__le16 algorithm;
+	__le16 transaction;
+	__le16 status;
+	/* challenge */
+	struct ieee80211_info_element info_element[0];
+} __attribute__ ((packed));
+
+struct ieee80211_channel_switch {
+	u8 id;
+	u8 len;
+	u8 mode;
+	u8 channel;
+	u8 count;
+} __attribute__ ((packed));
+
+struct ieee80211_action {
+	struct ieee80211_hdr_3addr header;
+	u8 category;
+	u8 action;
+	union {
+		struct ieee80211_action_exchange {
+			u8 token;
+			struct ieee80211_info_element info_element[0];
+		} exchange;
+		struct ieee80211_channel_switch channel_switch;
+
+	} format;
+} __attribute__ ((packed));
+
+struct ieee80211_disassoc {
+	struct ieee80211_hdr_3addr header;
+	__le16 reason;
+} __attribute__ ((packed));
+
+/* Alias deauth for disassoc */
+#define ieee80211_deauth ieee80211_disassoc
+
+struct ieee80211_probe_request {
+	struct ieee80211_hdr_3addr header;
+	/* SSID, supported rates */
+	struct ieee80211_info_element info_element[0];
+} __attribute__ ((packed));
+
+struct ieee80211_probe_response {
+	struct ieee80211_hdr_3addr header;
+	__le32 time_stamp[2];
+	__le16 beacon_interval;
+	__le16 capability;
+	/* SSID, supported rates, FH params, DS params,
+	 * CF params, IBSS params, TIM (if beacon), RSN */
+	struct ieee80211_info_element info_element[0];
+} __attribute__ ((packed));
+
+/* Alias beacon for probe_response */
+#define ieee80211_beacon ieee80211_probe_response
+
+struct ieee80211_assoc_request {
+	struct ieee80211_hdr_3addr header;
+	__le16 capability;
+	__le16 listen_interval;
+	/* SSID, supported rates, RSN */
+	struct ieee80211_info_element info_element[0];
+} __attribute__ ((packed));
+
+struct ieee80211_reassoc_request {
+	struct ieee80211_hdr_3addr header;
+	__le16 capability;
+	__le16 listen_interval;
+	u8 current_ap[ETH_ALEN];
+	struct ieee80211_info_element info_element[0];
+} __attribute__ ((packed));
+
+struct ieee80211_assoc_response {
+	struct ieee80211_hdr_3addr header;
+	__le16 capability;
+	__le16 status;
+	__le16 aid;
+	/* supported rates */
+	struct ieee80211_info_element info_element[0];
+} __attribute__ ((packed));
+
+struct ieee80211_txb {
+	u8 nr_frags;
+	u8 encrypted;
+	u8 rts_included;
+	u8 reserved;
+	u16 frag_size;
+	u16 payload_size;
+	struct sk_buff *fragments[0];
+};
+
+/* SWEEP TABLE ENTRIES NUMBER */
+#define MAX_SWEEP_TAB_ENTRIES		  42
+#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
+/* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
+ * only use 8, and then use extended rates for the remaining supported
+ * rates.  Other APs, however, stick all of their supported rates on the
+ * main rates information element... */
+#define MAX_RATES_LENGTH                  ((u8)12)
+#define MAX_RATES_EX_LENGTH               ((u8)16)
+#define MAX_NETWORK_COUNT                  128
+
+#define CRC_LENGTH                 4U
+
+#define MAX_WPA_IE_LEN 64
+
+#define NETWORK_HAS_OFDM       (1<<1)
+#define NETWORK_HAS_CCK        (1<<2)
+
+/* QoS structure */
+#define NETWORK_HAS_QOS_PARAMETERS      (1<<3)
+#define NETWORK_HAS_QOS_INFORMATION     (1<<4)
+#define NETWORK_HAS_QOS_MASK            (NETWORK_HAS_QOS_PARAMETERS | \
+					 NETWORK_HAS_QOS_INFORMATION)
+
+/* 802.11h */
+#define NETWORK_HAS_POWER_CONSTRAINT    (1<<5)
+#define NETWORK_HAS_CSA                 (1<<6)
+#define NETWORK_HAS_QUIET               (1<<7)
+#define NETWORK_HAS_IBSS_DFS            (1<<8)
+#define NETWORK_HAS_TPC_REPORT          (1<<9)
+
+#define NETWORK_HAS_ERP_VALUE           (1<<10)
+
+#define QOS_QUEUE_NUM                   4
+#define QOS_OUI_LEN                     3
+#define QOS_OUI_TYPE                    2
+#define QOS_ELEMENT_ID                  221
+#define QOS_OUI_INFO_SUB_TYPE           0
+#define QOS_OUI_PARAM_SUB_TYPE          1
+#define QOS_VERSION_1                   1
+#define QOS_AIFSN_MIN_VALUE             2
+
+struct ieee80211_qos_information_element {
+	u8 elementID;
+	u8 length;
+	u8 qui[QOS_OUI_LEN];
+	u8 qui_type;
+	u8 qui_subtype;
+	u8 version;
+	u8 ac_info;
+} __attribute__ ((packed));
+
+struct ieee80211_qos_ac_parameter {
+	u8 aci_aifsn;
+	u8 ecw_min_max;
+	__le16 tx_op_limit;
+} __attribute__ ((packed));
+
+struct ieee80211_qos_parameter_info {
+	struct ieee80211_qos_information_element info_element;
+	u8 reserved;
+	struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
+} __attribute__ ((packed));
+
+struct ieee80211_qos_parameters {
+	__le16 cw_min[QOS_QUEUE_NUM];
+	__le16 cw_max[QOS_QUEUE_NUM];
+	u8 aifs[QOS_QUEUE_NUM];
+	u8 flag[QOS_QUEUE_NUM];
+	__le16 tx_op_limit[QOS_QUEUE_NUM];
+} __attribute__ ((packed));
+
+struct ieee80211_qos_data {
+	struct ieee80211_qos_parameters parameters;
+	int active;
+	int supported;
+	u8 param_count;
+	u8 old_param_count;
+};
+
+struct ieee80211_tim_parameters {
+	u8 tim_count;
+	u8 tim_period;
+} __attribute__ ((packed));
+
+/*******************************************************/
+
+enum {				/* ieee80211_basic_report.map */
+	IEEE80211_BASIC_MAP_BSS = (1 << 0),
+	IEEE80211_BASIC_MAP_OFDM = (1 << 1),
+	IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2),
+	IEEE80211_BASIC_MAP_RADAR = (1 << 3),
+	IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4),
+	/* Bits 5-7 are reserved */
+
+};
+struct ieee80211_basic_report {
+	u8 channel;
+	__le64 start_time;
+	__le16 duration;
+	u8 map;
+} __attribute__ ((packed));
+
+enum {				/* ieee80211_measurement_request.mode */
+	/* Bit 0 is reserved */
+	IEEE80211_MEASUREMENT_ENABLE = (1 << 1),
+	IEEE80211_MEASUREMENT_REQUEST = (1 << 2),
+	IEEE80211_MEASUREMENT_REPORT = (1 << 3),
+	/* Bits 4-7 are reserved */
+};
+
+enum {
+	IEEE80211_REPORT_BASIC = 0,	/* required */
+	IEEE80211_REPORT_CCA = 1,	/* optional */
+	IEEE80211_REPORT_RPI = 2,	/* optional */
+	/* 3-255 reserved */
+};
+
+struct ieee80211_measurement_params {
+	u8 channel;
+	__le64 start_time;
+	__le16 duration;
+} __attribute__ ((packed));
+
+struct ieee80211_measurement_request {
+	struct ieee80211_info_element ie;
+	u8 token;
+	u8 mode;
+	u8 type;
+	struct ieee80211_measurement_params params[0];
+} __attribute__ ((packed));
+
+struct ieee80211_measurement_report {
+	struct ieee80211_info_element ie;
+	u8 token;
+	u8 mode;
+	u8 type;
+	union {
+		struct ieee80211_basic_report basic[0];
+	} u;
+} __attribute__ ((packed));
+
+struct ieee80211_tpc_report {
+	u8 transmit_power;
+	u8 link_margin;
+} __attribute__ ((packed));
+
+struct ieee80211_channel_map {
+	u8 channel;
+	u8 map;
+} __attribute__ ((packed));
+
+struct ieee80211_ibss_dfs {
+	struct ieee80211_info_element ie;
+	u8 owner[ETH_ALEN];
+	u8 recovery_interval;
+	struct ieee80211_channel_map channel_map[0];
+};
+
+struct ieee80211_csa {
+	u8 mode;
+	u8 channel;
+	u8 count;
+} __attribute__ ((packed));
+
+struct ieee80211_quiet {
+	u8 count;
+	u8 period;
+	u8 duration;
+	u8 offset;
+} __attribute__ ((packed));
+
+struct ieee80211_network {
+	/* These entries are used to identify a unique network */
+	u8 bssid[ETH_ALEN];
+	u8 channel;
+	/* Ensure null-terminated for any debug msgs */
+	u8 ssid[IW_ESSID_MAX_SIZE + 1];
+	u8 ssid_len;
+
+	struct ieee80211_qos_data qos_data;
+
+	/* These are network statistics */
+	struct ieee80211_rx_stats stats;
+	u16 capability;
+	u8 rates[MAX_RATES_LENGTH];
+	u8 rates_len;
+	u8 rates_ex[MAX_RATES_EX_LENGTH];
+	u8 rates_ex_len;
+	unsigned long last_scanned;
+	u8 mode;
+	u32 flags;
+	u32 last_associate;
+	u32 time_stamp[2];
+	u16 beacon_interval;
+	u16 listen_interval;
+	u16 atim_window;
+	u8 erp_value;
+	u8 wpa_ie[MAX_WPA_IE_LEN];
+	size_t wpa_ie_len;
+	u8 rsn_ie[MAX_WPA_IE_LEN];
+	size_t rsn_ie_len;
+	struct ieee80211_tim_parameters tim;
+
+	/* 802.11h info */
+
+	/* Power Constraint - mandatory if spctrm mgmt required */
+	u8 power_constraint;
+
+	/* TPC Report - mandatory if spctrm mgmt required */
+	struct ieee80211_tpc_report tpc_report;
+
+	/* IBSS DFS - mandatory if spctrm mgmt required and IBSS
+	 * NOTE: This is variable length and so must be allocated dynamically */
+	struct ieee80211_ibss_dfs *ibss_dfs;
+
+	/* Channel Switch Announcement - optional if spctrm mgmt required */
+	struct ieee80211_csa csa;
+
+	/* Quiet - optional if spctrm mgmt required */
+	struct ieee80211_quiet quiet;
+
+	struct list_head list;
+};
+
+enum ieee80211_state {
+	IEEE80211_UNINITIALIZED = 0,
+	IEEE80211_INITIALIZED,
+	IEEE80211_ASSOCIATING,
+	IEEE80211_ASSOCIATED,
+	IEEE80211_AUTHENTICATING,
+	IEEE80211_AUTHENTICATED,
+	IEEE80211_SHUTDOWN
+};
+
+#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
+#define DEFAULT_FTS 2346
+
+#define CFG_IEEE80211_RESERVE_FCS (1<<0)
+#define CFG_IEEE80211_COMPUTE_FCS (1<<1)
+#define CFG_IEEE80211_RTS (1<<2)
+
+#define IEEE80211_24GHZ_MIN_CHANNEL 1
+#define IEEE80211_24GHZ_MAX_CHANNEL 14
+#define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \
+				  IEEE80211_24GHZ_MIN_CHANNEL + 1)
+
+#define IEEE80211_52GHZ_MIN_CHANNEL 34
+#define IEEE80211_52GHZ_MAX_CHANNEL 165
+#define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \
+				  IEEE80211_52GHZ_MIN_CHANNEL + 1)
+
+enum {
+	IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
+	IEEE80211_CH_80211H_RULES = (1 << 1),
+	IEEE80211_CH_B_ONLY = (1 << 2),
+	IEEE80211_CH_NO_IBSS = (1 << 3),
+	IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
+	IEEE80211_CH_RADAR_DETECT = (1 << 5),
+	IEEE80211_CH_INVALID = (1 << 6),
+};
+
+struct ieee80211_channel {
+	u32 freq;	/* in MHz */
+	u8 channel;
+	u8 flags;
+	u8 max_power;	/* in dBm */
+};
+
+struct ieee80211_geo {
+	u8 name[4];
+	u8 bg_channels;
+	u8 a_channels;
+	struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
+	struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
+};
+
+struct ieee80211_device {
+	struct net_device *dev;
+	struct ieee80211_security sec;
+
+	/* Bookkeeping structures */
+	struct net_device_stats stats;
+	struct ieee80211_stats ieee_stats;
+
+	struct ieee80211_geo geo;
+
+	/* Probe / Beacon management */
+	struct list_head network_free_list;
+	struct list_head network_list;
+	struct ieee80211_network *networks;
+	int scans;
+	int scan_age;
+
+	int iw_mode;		/* operating mode (IW_MODE_*) */
+	struct iw_spy_data spy_data;	/* iwspy support */
+
+	spinlock_t lock;
+
+	int tx_headroom;	/* Set to size of any additional room needed at front
+				 * of allocated Tx SKBs */
+	u32 config;
+
+	/* WEP and other encryption related settings at the device level */
+	int open_wep;		/* Set to 1 to allow unencrypted frames */
+
+	int reset_on_keychange;	/* Set to 1 if the HW needs to be reset on
+				 * WEP key changes */
+
+	/* If the host performs {en,de}cryption, then set to 1 */
+	int host_encrypt;
+	int host_encrypt_msdu;
+	int host_decrypt;
+	/* host performs multicast decryption */
+	int host_mc_decrypt;
+
+	/* host should strip IV and ICV from protected frames */
+	/* meaningful only when hardware decryption is being used */
+	int host_strip_iv_icv;
+
+	int host_open_frag;
+	int host_build_iv;
+	int ieee802_1x;		/* is IEEE 802.1X used */
+
+	/* WPA data */
+	int wpa_enabled;
+	int drop_unencrypted;
+	int privacy_invoked;
+	size_t wpa_ie_len;
+	u8 *wpa_ie;
+
+	struct lib80211_crypt_info crypt_info;
+
+	int bcrx_sta_key;	/* use individual keys to override default keys even
+				 * with RX of broad/multicast frames */
+
+	/* Fragmentation structures */
+	struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
+	unsigned int frag_next_idx;
+	u16 fts;		/* Fragmentation Threshold */
+	u16 rts;		/* RTS threshold */
+
+	/* Association info */
+	u8 bssid[ETH_ALEN];
+
+	enum ieee80211_state state;
+
+	int mode;		/* A, B, G */
+	int modulation;		/* CCK, OFDM */
+	int freq_band;		/* 2.4Ghz, 5.2Ghz, Mixed */
+	int abg_true;		/* ABG flag              */
+
+	int perfect_rssi;
+	int worst_rssi;
+
+	u16 prev_seq_ctl;	/* used to drop duplicate frames */
+
+	/* Callback functions */
+	void (*set_security) (struct net_device * dev,
+			      struct ieee80211_security * sec);
+	int (*hard_start_xmit) (struct ieee80211_txb * txb,
+				struct net_device * dev, int pri);
+	int (*reset_port) (struct net_device * dev);
+	int (*is_queue_full) (struct net_device * dev, int pri);
+
+	int (*handle_management) (struct net_device * dev,
+				  struct ieee80211_network * network, u16 type);
+	int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
+
+	/* Typical STA methods */
+	int (*handle_auth) (struct net_device * dev,
+			    struct ieee80211_auth * auth);
+	int (*handle_deauth) (struct net_device * dev,
+			      struct ieee80211_deauth * auth);
+	int (*handle_action) (struct net_device * dev,
+			      struct ieee80211_action * action,
+			      struct ieee80211_rx_stats * stats);
+	int (*handle_disassoc) (struct net_device * dev,
+				struct ieee80211_disassoc * assoc);
+	int (*handle_beacon) (struct net_device * dev,
+			      struct ieee80211_beacon * beacon,
+			      struct ieee80211_network * network);
+	int (*handle_probe_response) (struct net_device * dev,
+				      struct ieee80211_probe_response * resp,
+				      struct ieee80211_network * network);
+	int (*handle_probe_request) (struct net_device * dev,
+				     struct ieee80211_probe_request * req,
+				     struct ieee80211_rx_stats * stats);
+	int (*handle_assoc_response) (struct net_device * dev,
+				      struct ieee80211_assoc_response * resp,
+				      struct ieee80211_network * network);
+
+	/* Typical AP methods */
+	int (*handle_assoc_request) (struct net_device * dev);
+	int (*handle_reassoc_request) (struct net_device * dev,
+				       struct ieee80211_reassoc_request * req);
+
+	/* This must be the last item so that it points to the data
+	 * allocated beyond this structure by alloc_ieee80211 */
+	u8 priv[0];
+};
+
+#define IEEE_A            (1<<0)
+#define IEEE_B            (1<<1)
+#define IEEE_G            (1<<2)
+#define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
+
+static inline void *ieee80211_priv(struct net_device *dev)
+{
+	return ((struct ieee80211_device *)netdev_priv(dev))->priv;
+}
+
+static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
+					  int mode)
+{
+	/*
+	 * It is possible for both access points and our device to support
+	 * combinations of modes, so as long as there is one valid combination
+	 * of ap/device supported modes, then return success
+	 *
+	 */
+	if ((mode & IEEE_A) &&
+	    (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
+	    (ieee->freq_band & IEEE80211_52GHZ_BAND))
+		return 1;
+
+	if ((mode & IEEE_G) &&
+	    (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
+	    (ieee->freq_band & IEEE80211_24GHZ_BAND))
+		return 1;
+
+	if ((mode & IEEE_B) &&
+	    (ieee->modulation & IEEE80211_CCK_MODULATION) &&
+	    (ieee->freq_band & IEEE80211_24GHZ_BAND))
+		return 1;
+
+	return 0;
+}
+
+static inline int ieee80211_get_hdrlen(u16 fc)
+{
+	int hdrlen = IEEE80211_3ADDR_LEN;
+	u16 stype = WLAN_FC_GET_STYPE(fc);
+
+	switch (WLAN_FC_GET_TYPE(fc)) {
+	case IEEE80211_FTYPE_DATA:
+		if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
+			hdrlen = IEEE80211_4ADDR_LEN;
+		if (stype & IEEE80211_STYPE_QOS_DATA)
+			hdrlen += 2;
+		break;
+	case IEEE80211_FTYPE_CTL:
+		switch (WLAN_FC_GET_STYPE(fc)) {
+		case IEEE80211_STYPE_CTS:
+		case IEEE80211_STYPE_ACK:
+			hdrlen = IEEE80211_1ADDR_LEN;
+			break;
+		default:
+			hdrlen = IEEE80211_2ADDR_LEN;
+			break;
+		}
+		break;
+	}
+
+	return hdrlen;
+}
+
+static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
+{
+	switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
+	case IEEE80211_1ADDR_LEN:
+		return ((struct ieee80211_hdr_1addr *)hdr)->payload;
+	case IEEE80211_2ADDR_LEN:
+		return ((struct ieee80211_hdr_2addr *)hdr)->payload;
+	case IEEE80211_3ADDR_LEN:
+		return ((struct ieee80211_hdr_3addr *)hdr)->payload;
+	case IEEE80211_4ADDR_LEN:
+		return ((struct ieee80211_hdr_4addr *)hdr)->payload;
+	}
+	return NULL;
+}
+
+static inline int ieee80211_is_ofdm_rate(u8 rate)
+{
+	switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
+	case IEEE80211_OFDM_RATE_6MB:
+	case IEEE80211_OFDM_RATE_9MB:
+	case IEEE80211_OFDM_RATE_12MB:
+	case IEEE80211_OFDM_RATE_18MB:
+	case IEEE80211_OFDM_RATE_24MB:
+	case IEEE80211_OFDM_RATE_36MB:
+	case IEEE80211_OFDM_RATE_48MB:
+	case IEEE80211_OFDM_RATE_54MB:
+		return 1;
+	}
+	return 0;
+}
+
+static inline int ieee80211_is_cck_rate(u8 rate)
+{
+	switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
+	case IEEE80211_CCK_RATE_1MB:
+	case IEEE80211_CCK_RATE_2MB:
+	case IEEE80211_CCK_RATE_5MB:
+	case IEEE80211_CCK_RATE_11MB:
+		return 1;
+	}
+	return 0;
+}
+
+/* ieee80211.c */
+extern void free_ieee80211(struct net_device *dev);
+extern struct net_device *alloc_ieee80211(int sizeof_priv);
+
+extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
+
+/* ieee80211_tx.c */
+extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
+extern void ieee80211_txb_free(struct ieee80211_txb *);
+
+/* ieee80211_rx.c */
+extern void ieee80211_rx_any(struct ieee80211_device *ieee,
+		     struct sk_buff *skb, struct ieee80211_rx_stats *stats);
+extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
+			struct ieee80211_rx_stats *rx_stats);
+/* make sure to set stats->len */
+extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
+			     struct ieee80211_hdr_4addr *header,
+			     struct ieee80211_rx_stats *stats);
+extern void ieee80211_network_reset(struct ieee80211_network *network);
+
+/* ieee80211_geo.c */
+extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
+						     *ieee);
+extern int ieee80211_set_geo(struct ieee80211_device *ieee,
+			     const struct ieee80211_geo *geo);
+
+extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
+				      u8 channel);
+extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
+				      u8 channel);
+extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
+extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee,
+				      u8 channel);
+extern const struct ieee80211_channel *ieee80211_get_channel(struct
+							     ieee80211_device
+							     *ieee, u8 channel);
+extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee,
+				      u8 channel);
+
+/* ieee80211_wx.c */
+extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
+				 struct iw_request_info *info,
+				 union iwreq_data *wrqu, char *key);
+extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
+				   struct iw_request_info *info,
+				   union iwreq_data *wrqu, char *key);
+extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
+				   struct iw_request_info *info,
+				   union iwreq_data *wrqu, char *key);
+extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
+				      struct iw_request_info *info,
+				      union iwreq_data *wrqu, char *extra);
+extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
+				      struct iw_request_info *info,
+				      union iwreq_data *wrqu, char *extra);
+
+static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
+{
+	ieee->scans++;
+}
+
+static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
+{
+	return ieee->scans;
+}
+
+#endif				/* IEEE80211_H */
diff --git a/drivers/net/wireless/ipw2x00/ipw2100.h b/drivers/net/wireless/ipw2x00/ipw2100.h
index bbf1ddcafba8..46b135d21670 100644
--- a/drivers/net/wireless/ipw2x00/ipw2100.h
+++ b/drivers/net/wireless/ipw2x00/ipw2100.h
@@ -39,8 +39,6 @@
 #include <linux/wireless.h>
 #include <net/iw_handler.h>	// new driver API
 
-#include <net/ieee80211.h>
-
 #ifdef CONFIG_IPW2100_MONITOR
 #include <net/ieee80211_radiotap.h>
 #endif
@@ -48,6 +46,8 @@
 #include <linux/workqueue.h>
 #include <linux/mutex.h>
 
+#include "ieee80211.h"
+
 struct ipw2100_priv;
 struct ipw2100_tx_packet;
 struct ipw2100_rx_packet;
diff --git a/drivers/net/wireless/ipw2x00/ipw2200.h b/drivers/net/wireless/ipw2x00/ipw2200.h
index 277b274d4be5..3e66c998dfea 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.h
+++ b/drivers/net/wireless/ipw2x00/ipw2200.h
@@ -49,13 +49,14 @@
 #include <asm/io.h>
 
 #include <net/lib80211.h>
-#include <net/ieee80211.h>
 #include <net/ieee80211_radiotap.h>
 
 #define DRV_NAME	"ipw2200"
 
 #include <linux/workqueue.h>
 
+#include "ieee80211.h"
+
 /* Authentication  and Association States */
 enum connection_manager_assoc_states {
 	CMAS_INIT = 0,
diff --git a/drivers/net/wireless/ipw2x00/libipw_geo.c b/drivers/net/wireless/ipw2x00/libipw_geo.c
index 960ad13f5e9f..9dfbb8760f67 100644
--- a/drivers/net/wireless/ipw2x00/libipw_geo.c
+++ b/drivers/net/wireless/ipw2x00/libipw_geo.c
@@ -41,7 +41,7 @@
 #include <linux/etherdevice.h>
 #include <asm/uaccess.h>
 
-#include <net/ieee80211.h>
+#include "ieee80211.h"
 
 int ieee80211_is_valid_channel(struct ieee80211_device *ieee, u8 channel)
 {
diff --git a/drivers/net/wireless/ipw2x00/libipw_module.c b/drivers/net/wireless/ipw2x00/libipw_module.c
index a2f5616d5b09..0f233ab6a95b 100644
--- a/drivers/net/wireless/ipw2x00/libipw_module.c
+++ b/drivers/net/wireless/ipw2x00/libipw_module.c
@@ -50,7 +50,7 @@
 #include <net/net_namespace.h>
 #include <net/arp.h>
 
-#include <net/ieee80211.h>
+#include "ieee80211.h"
 
 #define DRV_DESCRIPTION "802.11 data/management/control stack"
 #define DRV_NAME        "ieee80211"
diff --git a/drivers/net/wireless/ipw2x00/libipw_rx.c b/drivers/net/wireless/ipw2x00/libipw_rx.c
index 9c67dfae4320..4865475e8a81 100644
--- a/drivers/net/wireless/ipw2x00/libipw_rx.c
+++ b/drivers/net/wireless/ipw2x00/libipw_rx.c
@@ -33,7 +33,8 @@
 #include <linux/ctype.h>
 
 #include <net/lib80211.h>
-#include <net/ieee80211.h>
+
+#include "ieee80211.h"
 
 static void ieee80211_monitor_rx(struct ieee80211_device *ieee,
 					struct sk_buff *skb,
diff --git a/drivers/net/wireless/ipw2x00/libipw_tx.c b/drivers/net/wireless/ipw2x00/libipw_tx.c
index f78f57e8844a..a874e9091919 100644
--- a/drivers/net/wireless/ipw2x00/libipw_tx.c
+++ b/drivers/net/wireless/ipw2x00/libipw_tx.c
@@ -41,7 +41,7 @@
 #include <linux/etherdevice.h>
 #include <asm/uaccess.h>
 
-#include <net/ieee80211.h>
+#include "ieee80211.h"
 
 /*
 
diff --git a/drivers/net/wireless/ipw2x00/libipw_wx.c b/drivers/net/wireless/ipw2x00/libipw_wx.c
index 31ea3abfc327..dfbadb3b9bd5 100644
--- a/drivers/net/wireless/ipw2x00/libipw_wx.c
+++ b/drivers/net/wireless/ipw2x00/libipw_wx.c
@@ -35,9 +35,10 @@
 #include <linux/jiffies.h>
 
 #include <net/lib80211.h>
-#include <net/ieee80211.h>
 #include <linux/wireless.h>
 
+#include "ieee80211.h"
+
 static const char *ieee80211_modes[] = {
 	"?", "a", "b", "ab", "g", "ag", "bg", "abg"
 };
diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h
deleted file mode 100644
index adb7cf31f781..000000000000
--- a/include/net/ieee80211.h
+++ /dev/null
@@ -1,1185 +0,0 @@
-/*
- * Merged with mainline ieee80211.h in Aug 2004.  Original ieee802_11
- * remains copyright by the original authors
- *
- * Portions of the merged code are based on Host AP (software wireless
- * LAN access point) driver for Intersil Prism2/2.5/3.
- *
- * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
- * <j@w1.fi>
- * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
- *
- * Adaption to a generic IEEE 802.11 stack by James Ketrenos
- * <jketreno@linux.intel.com>
- * Copyright (c) 2004-2005, Intel Corporation
- *
- * 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. See README and COPYING for
- * more details.
- *
- * API Version History
- * 1.0.x -- Initial version
- * 1.1.x -- Added radiotap, QoS, TIM, ieee80211_geo APIs,
- *          various structure changes, and crypto API init method
- */
-#ifndef IEEE80211_H
-#define IEEE80211_H
-#include <linux/if_ether.h>	/* ETH_ALEN */
-#include <linux/kernel.h>	/* ARRAY_SIZE */
-#include <linux/wireless.h>
-#include <linux/ieee80211.h>
-
-#include <net/lib80211.h>
-
-#define IEEE80211_VERSION "git-1.1.13"
-
-#define IEEE80211_DATA_LEN		2304
-/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
-   6.2.1.1.2.
-
-   The figure in section 7.1.2 suggests a body size of up to 2312
-   bytes is allowed, which is a bit confusing, I suspect this
-   represents the 2304 bytes of real data, plus a possible 8 bytes of
-   WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
-
-#define IEEE80211_1ADDR_LEN 10
-#define IEEE80211_2ADDR_LEN 16
-#define IEEE80211_3ADDR_LEN 24
-#define IEEE80211_4ADDR_LEN 30
-#define IEEE80211_FCS_LEN    4
-#define IEEE80211_HLEN			(IEEE80211_4ADDR_LEN)
-#define IEEE80211_FRAME_LEN		(IEEE80211_DATA_LEN + IEEE80211_HLEN)
-
-#define MIN_FRAG_THRESHOLD     256U
-#define	MAX_FRAG_THRESHOLD     2346U
-
-/* Frame control field constants */
-#define IEEE80211_FCTL_VERS		0x0003
-#define IEEE80211_FCTL_FTYPE		0x000c
-#define IEEE80211_FCTL_STYPE		0x00f0
-#define IEEE80211_FCTL_TODS		0x0100
-#define IEEE80211_FCTL_FROMDS		0x0200
-#define IEEE80211_FCTL_MOREFRAGS	0x0400
-#define IEEE80211_FCTL_RETRY		0x0800
-#define IEEE80211_FCTL_PM		0x1000
-#define IEEE80211_FCTL_MOREDATA		0x2000
-#define IEEE80211_FCTL_PROTECTED	0x4000
-#define IEEE80211_FCTL_ORDER		0x8000
-
-#define IEEE80211_FTYPE_MGMT		0x0000
-#define IEEE80211_FTYPE_CTL		0x0004
-#define IEEE80211_FTYPE_DATA		0x0008
-
-/* management */
-#define IEEE80211_STYPE_ASSOC_REQ	0x0000
-#define IEEE80211_STYPE_ASSOC_RESP 	0x0010
-#define IEEE80211_STYPE_REASSOC_REQ	0x0020
-#define IEEE80211_STYPE_REASSOC_RESP	0x0030
-#define IEEE80211_STYPE_PROBE_REQ	0x0040
-#define IEEE80211_STYPE_PROBE_RESP	0x0050
-#define IEEE80211_STYPE_BEACON		0x0080
-#define IEEE80211_STYPE_ATIM		0x0090
-#define IEEE80211_STYPE_DISASSOC	0x00A0
-#define IEEE80211_STYPE_AUTH		0x00B0
-#define IEEE80211_STYPE_DEAUTH		0x00C0
-#define IEEE80211_STYPE_ACTION		0x00D0
-
-/* control */
-#define IEEE80211_STYPE_PSPOLL		0x00A0
-#define IEEE80211_STYPE_RTS		0x00B0
-#define IEEE80211_STYPE_CTS		0x00C0
-#define IEEE80211_STYPE_ACK		0x00D0
-#define IEEE80211_STYPE_CFEND		0x00E0
-#define IEEE80211_STYPE_CFENDACK	0x00F0
-
-/* data */
-#define IEEE80211_STYPE_DATA		0x0000
-#define IEEE80211_STYPE_DATA_CFACK	0x0010
-#define IEEE80211_STYPE_DATA_CFPOLL	0x0020
-#define IEEE80211_STYPE_DATA_CFACKPOLL	0x0030
-#define IEEE80211_STYPE_NULLFUNC	0x0040
-#define IEEE80211_STYPE_CFACK		0x0050
-#define IEEE80211_STYPE_CFPOLL		0x0060
-#define IEEE80211_STYPE_CFACKPOLL	0x0070
-#define IEEE80211_STYPE_QOS_DATA        0x0080
-
-#define IEEE80211_SCTL_FRAG		0x000F
-#define IEEE80211_SCTL_SEQ		0xFFF0
-
-/* QOS control */
-#define IEEE80211_QCTL_TID		0x000F
-
-/* debug macros */
-
-#ifdef CONFIG_IEEE80211_DEBUG
-extern u32 ieee80211_debug_level;
-#define IEEE80211_DEBUG(level, fmt, args...) \
-do { if (ieee80211_debug_level & (level)) \
-  printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
-         in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
-static inline bool ieee80211_ratelimit_debug(u32 level)
-{
-	return (ieee80211_debug_level & level) && net_ratelimit();
-}
-#else
-#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
-static inline bool ieee80211_ratelimit_debug(u32 level)
-{
-	return false;
-}
-#endif				/* CONFIG_IEEE80211_DEBUG */
-
-/*
- * To use the debug system:
- *
- * If you are defining a new debug classification, simply add it to the #define
- * list here in the form of:
- *
- * #define IEEE80211_DL_xxxx VALUE
- *
- * shifting value to the left one bit from the previous entry.  xxxx should be
- * the name of the classification (for example, WEP)
- *
- * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
- * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
- * to send output to that classification.
- *
- * To add your debug level to the list of levels seen when you perform
- *
- * % cat /proc/net/ieee80211/debug_level
- *
- * you simply need to add your entry to the ieee80211_debug_level array.
- *
- * If you do not see debug_level in /proc/net/ieee80211 then you do not have
- * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
- *
- */
-
-#define IEEE80211_DL_INFO          (1<<0)
-#define IEEE80211_DL_WX            (1<<1)
-#define IEEE80211_DL_SCAN          (1<<2)
-#define IEEE80211_DL_STATE         (1<<3)
-#define IEEE80211_DL_MGMT          (1<<4)
-#define IEEE80211_DL_FRAG          (1<<5)
-#define IEEE80211_DL_DROP          (1<<7)
-
-#define IEEE80211_DL_TX            (1<<8)
-#define IEEE80211_DL_RX            (1<<9)
-#define IEEE80211_DL_QOS           (1<<31)
-
-#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
-#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
-#define IEEE80211_DEBUG_INFO(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
-
-#define IEEE80211_DEBUG_WX(f, a...)     IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
-#define IEEE80211_DEBUG_SCAN(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
-#define IEEE80211_DEBUG_STATE(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
-#define IEEE80211_DEBUG_MGMT(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
-#define IEEE80211_DEBUG_FRAG(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
-#define IEEE80211_DEBUG_DROP(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
-#define IEEE80211_DEBUG_TX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
-#define IEEE80211_DEBUG_RX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
-#define IEEE80211_DEBUG_QOS(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
-#include <linux/netdevice.h>
-#include <linux/if_arp.h>	/* ARPHRD_ETHER */
-
-#ifndef WIRELESS_SPY
-#define WIRELESS_SPY		/* enable iwspy support */
-#endif
-#include <net/iw_handler.h>	/* new driver API */
-
-#define ETH_P_PREAUTH 0x88C7	/* IEEE 802.11i pre-authentication */
-
-#ifndef ETH_P_80211_RAW
-#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
-#endif
-
-/* IEEE 802.11 defines */
-
-#define P80211_OUI_LEN 3
-
-struct ieee80211_snap_hdr {
-
-	u8 dsap;		/* always 0xAA */
-	u8 ssap;		/* always 0xAA */
-	u8 ctrl;		/* always 0x03 */
-	u8 oui[P80211_OUI_LEN];	/* organizational universal id */
-
-} __attribute__ ((packed));
-
-#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
-
-#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
-#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
-#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
-
-#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
-#define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)
-
-/* Action categories - 802.11h */
-enum ieee80211_actioncategories {
-	WLAN_ACTION_SPECTRUM_MGMT = 0,
-	/* Reserved 1-127  */
-	/* Error    128-255 */
-};
-
-/* Action details - 802.11h */
-enum ieee80211_actiondetails {
-	WLAN_ACTION_CATEGORY_MEASURE_REQUEST = 0,
-	WLAN_ACTION_CATEGORY_MEASURE_REPORT = 1,
-	WLAN_ACTION_CATEGORY_TPC_REQUEST = 2,
-	WLAN_ACTION_CATEGORY_TPC_REPORT = 3,
-	WLAN_ACTION_CATEGORY_CHANNEL_SWITCH = 4,
-	/* 5 - 255 Reserved */
-};
-
-#define IEEE80211_STATMASK_SIGNAL (1<<0)
-#define IEEE80211_STATMASK_RSSI (1<<1)
-#define IEEE80211_STATMASK_NOISE (1<<2)
-#define IEEE80211_STATMASK_RATE (1<<3)
-#define IEEE80211_STATMASK_WEMASK 0x7
-
-#define IEEE80211_CCK_MODULATION    (1<<0)
-#define IEEE80211_OFDM_MODULATION   (1<<1)
-
-#define IEEE80211_24GHZ_BAND     (1<<0)
-#define IEEE80211_52GHZ_BAND     (1<<1)
-
-#define IEEE80211_CCK_RATE_1MB		        0x02
-#define IEEE80211_CCK_RATE_2MB		        0x04
-#define IEEE80211_CCK_RATE_5MB		        0x0B
-#define IEEE80211_CCK_RATE_11MB		        0x16
-#define IEEE80211_OFDM_RATE_6MB		        0x0C
-#define IEEE80211_OFDM_RATE_9MB		        0x12
-#define IEEE80211_OFDM_RATE_12MB		0x18
-#define IEEE80211_OFDM_RATE_18MB		0x24
-#define IEEE80211_OFDM_RATE_24MB		0x30
-#define IEEE80211_OFDM_RATE_36MB		0x48
-#define IEEE80211_OFDM_RATE_48MB		0x60
-#define IEEE80211_OFDM_RATE_54MB		0x6C
-#define IEEE80211_BASIC_RATE_MASK		0x80
-
-#define IEEE80211_CCK_RATE_1MB_MASK		(1<<0)
-#define IEEE80211_CCK_RATE_2MB_MASK		(1<<1)
-#define IEEE80211_CCK_RATE_5MB_MASK		(1<<2)
-#define IEEE80211_CCK_RATE_11MB_MASK		(1<<3)
-#define IEEE80211_OFDM_RATE_6MB_MASK		(1<<4)
-#define IEEE80211_OFDM_RATE_9MB_MASK		(1<<5)
-#define IEEE80211_OFDM_RATE_12MB_MASK		(1<<6)
-#define IEEE80211_OFDM_RATE_18MB_MASK		(1<<7)
-#define IEEE80211_OFDM_RATE_24MB_MASK		(1<<8)
-#define IEEE80211_OFDM_RATE_36MB_MASK		(1<<9)
-#define IEEE80211_OFDM_RATE_48MB_MASK		(1<<10)
-#define IEEE80211_OFDM_RATE_54MB_MASK		(1<<11)
-
-#define IEEE80211_CCK_RATES_MASK	        0x0000000F
-#define IEEE80211_CCK_BASIC_RATES_MASK	(IEEE80211_CCK_RATE_1MB_MASK | \
-	IEEE80211_CCK_RATE_2MB_MASK)
-#define IEEE80211_CCK_DEFAULT_RATES_MASK	(IEEE80211_CCK_BASIC_RATES_MASK | \
-        IEEE80211_CCK_RATE_5MB_MASK | \
-        IEEE80211_CCK_RATE_11MB_MASK)
-
-#define IEEE80211_OFDM_RATES_MASK		0x00000FF0
-#define IEEE80211_OFDM_BASIC_RATES_MASK	(IEEE80211_OFDM_RATE_6MB_MASK | \
-	IEEE80211_OFDM_RATE_12MB_MASK | \
-	IEEE80211_OFDM_RATE_24MB_MASK)
-#define IEEE80211_OFDM_DEFAULT_RATES_MASK	(IEEE80211_OFDM_BASIC_RATES_MASK | \
-	IEEE80211_OFDM_RATE_9MB_MASK  | \
-	IEEE80211_OFDM_RATE_18MB_MASK | \
-	IEEE80211_OFDM_RATE_36MB_MASK | \
-	IEEE80211_OFDM_RATE_48MB_MASK | \
-	IEEE80211_OFDM_RATE_54MB_MASK)
-#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
-                                IEEE80211_CCK_DEFAULT_RATES_MASK)
-
-#define IEEE80211_NUM_OFDM_RATES	    8
-#define IEEE80211_NUM_CCK_RATES	            4
-#define IEEE80211_OFDM_SHIFT_MASK_A         4
-
-/* NOTE: This data is for statistical purposes; not all hardware provides this
- *       information for frames received.
- *       For ieee80211_rx_mgt, you need to set at least the 'len' parameter.
- */
-struct ieee80211_rx_stats {
-	u32 mac_time;
-	s8 rssi;
-	u8 signal;
-	u8 noise;
-	u16 rate;		/* in 100 kbps */
-	u8 received_channel;
-	u8 control;
-	u8 mask;
-	u8 freq;
-	u16 len;
-	u64 tsf;
-	u32 beacon_time;
-};
-
-/* IEEE 802.11 requires that STA supports concurrent reception of at least
- * three fragmented frames. This define can be increased to support more
- * concurrent frames, but it should be noted that each entry can consume about
- * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
-#define IEEE80211_FRAG_CACHE_LEN 4
-
-struct ieee80211_frag_entry {
-	unsigned long first_frag_time;
-	unsigned int seq;
-	unsigned int last_frag;
-	struct sk_buff *skb;
-	u8 src_addr[ETH_ALEN];
-	u8 dst_addr[ETH_ALEN];
-};
-
-struct ieee80211_stats {
-	unsigned int tx_unicast_frames;
-	unsigned int tx_multicast_frames;
-	unsigned int tx_fragments;
-	unsigned int tx_unicast_octets;
-	unsigned int tx_multicast_octets;
-	unsigned int tx_deferred_transmissions;
-	unsigned int tx_single_retry_frames;
-	unsigned int tx_multiple_retry_frames;
-	unsigned int tx_retry_limit_exceeded;
-	unsigned int tx_discards;
-	unsigned int rx_unicast_frames;
-	unsigned int rx_multicast_frames;
-	unsigned int rx_fragments;
-	unsigned int rx_unicast_octets;
-	unsigned int rx_multicast_octets;
-	unsigned int rx_fcs_errors;
-	unsigned int rx_discards_no_buffer;
-	unsigned int tx_discards_wrong_sa;
-	unsigned int rx_discards_undecryptable;
-	unsigned int rx_message_in_msg_fragments;
-	unsigned int rx_message_in_bad_msg_fragments;
-};
-
-struct ieee80211_device;
-
-#define SEC_KEY_1		(1<<0)
-#define SEC_KEY_2		(1<<1)
-#define SEC_KEY_3		(1<<2)
-#define SEC_KEY_4		(1<<3)
-#define SEC_ACTIVE_KEY		(1<<4)
-#define SEC_AUTH_MODE		(1<<5)
-#define SEC_UNICAST_GROUP	(1<<6)
-#define SEC_LEVEL		(1<<7)
-#define SEC_ENABLED		(1<<8)
-#define SEC_ENCRYPT		(1<<9)
-
-#define SEC_LEVEL_0		0	/* None */
-#define SEC_LEVEL_1		1	/* WEP 40 and 104 bit */
-#define SEC_LEVEL_2		2	/* Level 1 + TKIP */
-#define SEC_LEVEL_2_CKIP	3	/* Level 1 + CKIP */
-#define SEC_LEVEL_3		4	/* Level 2 + CCMP */
-
-#define SEC_ALG_NONE		0
-#define SEC_ALG_WEP		1
-#define SEC_ALG_TKIP		2
-#define SEC_ALG_CCMP		3
-
-#define WEP_KEYS		4
-#define WEP_KEY_LEN		13
-#define SCM_KEY_LEN		32
-#define SCM_TEMPORAL_KEY_LENGTH	16
-
-struct ieee80211_security {
-	u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;
-	u8 auth_mode;
-	u8 encode_alg[WEP_KEYS];
-	u8 key_sizes[WEP_KEYS];
-	u8 keys[WEP_KEYS][SCM_KEY_LEN];
-	u8 level;
-	u16 flags;
-} __attribute__ ((packed));
-
-/*
-
- 802.11 data frame from AP
-
-      ,-------------------------------------------------------------------.
-Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
-      |------|------|---------|---------|---------|------|---------|------|
-Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
-      |      | tion | (BSSID) |         |         | ence |  data   |      |
-      `-------------------------------------------------------------------'
-
-Total: 28-2340 bytes
-
-*/
-
-#define BEACON_PROBE_SSID_ID_POSITION 12
-
-/* Management Frame Information Element Types */
-enum ieee80211_mfie {
-	MFIE_TYPE_SSID = 0,
-	MFIE_TYPE_RATES = 1,
-	MFIE_TYPE_FH_SET = 2,
-	MFIE_TYPE_DS_SET = 3,
-	MFIE_TYPE_CF_SET = 4,
-	MFIE_TYPE_TIM = 5,
-	MFIE_TYPE_IBSS_SET = 6,
-	MFIE_TYPE_COUNTRY = 7,
-	MFIE_TYPE_HOP_PARAMS = 8,
-	MFIE_TYPE_HOP_TABLE = 9,
-	MFIE_TYPE_REQUEST = 10,
-	MFIE_TYPE_CHALLENGE = 16,
-	MFIE_TYPE_POWER_CONSTRAINT = 32,
-	MFIE_TYPE_POWER_CAPABILITY = 33,
-	MFIE_TYPE_TPC_REQUEST = 34,
-	MFIE_TYPE_TPC_REPORT = 35,
-	MFIE_TYPE_SUPP_CHANNELS = 36,
-	MFIE_TYPE_CSA = 37,
-	MFIE_TYPE_MEASURE_REQUEST = 38,
-	MFIE_TYPE_MEASURE_REPORT = 39,
-	MFIE_TYPE_QUIET = 40,
-	MFIE_TYPE_IBSS_DFS = 41,
-	MFIE_TYPE_ERP_INFO = 42,
-	MFIE_TYPE_RSN = 48,
-	MFIE_TYPE_RATES_EX = 50,
-	MFIE_TYPE_GENERIC = 221,
-	MFIE_TYPE_QOS_PARAMETER = 222,
-};
-
-struct ieee80211_hdr_1addr {
-	__le16 frame_ctl;
-	__le16 duration_id;
-	u8 addr1[ETH_ALEN];
-	u8 payload[0];
-} __attribute__ ((packed));
-
-struct ieee80211_hdr_2addr {
-	__le16 frame_ctl;
-	__le16 duration_id;
-	u8 addr1[ETH_ALEN];
-	u8 addr2[ETH_ALEN];
-	u8 payload[0];
-} __attribute__ ((packed));
-
-struct ieee80211_hdr_3addr {
-	__le16 frame_ctl;
-	__le16 duration_id;
-	u8 addr1[ETH_ALEN];
-	u8 addr2[ETH_ALEN];
-	u8 addr3[ETH_ALEN];
-	__le16 seq_ctl;
-	u8 payload[0];
-} __attribute__ ((packed));
-
-struct ieee80211_hdr_4addr {
-	__le16 frame_ctl;
-	__le16 duration_id;
-	u8 addr1[ETH_ALEN];
-	u8 addr2[ETH_ALEN];
-	u8 addr3[ETH_ALEN];
-	__le16 seq_ctl;
-	u8 addr4[ETH_ALEN];
-	u8 payload[0];
-} __attribute__ ((packed));
-
-struct ieee80211_hdr_3addrqos {
-	__le16 frame_ctl;
-	__le16 duration_id;
-	u8 addr1[ETH_ALEN];
-	u8 addr2[ETH_ALEN];
-	u8 addr3[ETH_ALEN];
-	__le16 seq_ctl;
-	u8 payload[0];
-	__le16 qos_ctl;
-} __attribute__ ((packed));
-
-struct ieee80211_info_element {
-	u8 id;
-	u8 len;
-	u8 data[0];
-} __attribute__ ((packed));
-
-/*
- * These are the data types that can make up management packets
- *
-	u16 auth_algorithm;
-	u16 auth_sequence;
-	u16 beacon_interval;
-	u16 capability;
-	u8 current_ap[ETH_ALEN];
-	u16 listen_interval;
-	struct {
-		u16 association_id:14, reserved:2;
-	} __attribute__ ((packed));
-	u32 time_stamp[2];
-	u16 reason;
-	u16 status;
-*/
-
-struct ieee80211_auth {
-	struct ieee80211_hdr_3addr header;
-	__le16 algorithm;
-	__le16 transaction;
-	__le16 status;
-	/* challenge */
-	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
-
-struct ieee80211_channel_switch {
-	u8 id;
-	u8 len;
-	u8 mode;
-	u8 channel;
-	u8 count;
-} __attribute__ ((packed));
-
-struct ieee80211_action {
-	struct ieee80211_hdr_3addr header;
-	u8 category;
-	u8 action;
-	union {
-		struct ieee80211_action_exchange {
-			u8 token;
-			struct ieee80211_info_element info_element[0];
-		} exchange;
-		struct ieee80211_channel_switch channel_switch;
-
-	} format;
-} __attribute__ ((packed));
-
-struct ieee80211_disassoc {
-	struct ieee80211_hdr_3addr header;
-	__le16 reason;
-} __attribute__ ((packed));
-
-/* Alias deauth for disassoc */
-#define ieee80211_deauth ieee80211_disassoc
-
-struct ieee80211_probe_request {
-	struct ieee80211_hdr_3addr header;
-	/* SSID, supported rates */
-	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
-
-struct ieee80211_probe_response {
-	struct ieee80211_hdr_3addr header;
-	__le32 time_stamp[2];
-	__le16 beacon_interval;
-	__le16 capability;
-	/* SSID, supported rates, FH params, DS params,
-	 * CF params, IBSS params, TIM (if beacon), RSN */
-	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
-
-/* Alias beacon for probe_response */
-#define ieee80211_beacon ieee80211_probe_response
-
-struct ieee80211_assoc_request {
-	struct ieee80211_hdr_3addr header;
-	__le16 capability;
-	__le16 listen_interval;
-	/* SSID, supported rates, RSN */
-	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
-
-struct ieee80211_reassoc_request {
-	struct ieee80211_hdr_3addr header;
-	__le16 capability;
-	__le16 listen_interval;
-	u8 current_ap[ETH_ALEN];
-	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
-
-struct ieee80211_assoc_response {
-	struct ieee80211_hdr_3addr header;
-	__le16 capability;
-	__le16 status;
-	__le16 aid;
-	/* supported rates */
-	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
-
-struct ieee80211_txb {
-	u8 nr_frags;
-	u8 encrypted;
-	u8 rts_included;
-	u8 reserved;
-	u16 frag_size;
-	u16 payload_size;
-	struct sk_buff *fragments[0];
-};
-
-/* SWEEP TABLE ENTRIES NUMBER */
-#define MAX_SWEEP_TAB_ENTRIES		  42
-#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
-/* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
- * only use 8, and then use extended rates for the remaining supported
- * rates.  Other APs, however, stick all of their supported rates on the
- * main rates information element... */
-#define MAX_RATES_LENGTH                  ((u8)12)
-#define MAX_RATES_EX_LENGTH               ((u8)16)
-#define MAX_NETWORK_COUNT                  128
-
-#define CRC_LENGTH                 4U
-
-#define MAX_WPA_IE_LEN 64
-
-#define NETWORK_HAS_OFDM       (1<<1)
-#define NETWORK_HAS_CCK        (1<<2)
-
-/* QoS structure */
-#define NETWORK_HAS_QOS_PARAMETERS      (1<<3)
-#define NETWORK_HAS_QOS_INFORMATION     (1<<4)
-#define NETWORK_HAS_QOS_MASK            (NETWORK_HAS_QOS_PARAMETERS | \
-					 NETWORK_HAS_QOS_INFORMATION)
-
-/* 802.11h */
-#define NETWORK_HAS_POWER_CONSTRAINT    (1<<5)
-#define NETWORK_HAS_CSA                 (1<<6)
-#define NETWORK_HAS_QUIET               (1<<7)
-#define NETWORK_HAS_IBSS_DFS            (1<<8)
-#define NETWORK_HAS_TPC_REPORT          (1<<9)
-
-#define NETWORK_HAS_ERP_VALUE           (1<<10)
-
-#define QOS_QUEUE_NUM                   4
-#define QOS_OUI_LEN                     3
-#define QOS_OUI_TYPE                    2
-#define QOS_ELEMENT_ID                  221
-#define QOS_OUI_INFO_SUB_TYPE           0
-#define QOS_OUI_PARAM_SUB_TYPE          1
-#define QOS_VERSION_1                   1
-#define QOS_AIFSN_MIN_VALUE             2
-
-struct ieee80211_qos_information_element {
-	u8 elementID;
-	u8 length;
-	u8 qui[QOS_OUI_LEN];
-	u8 qui_type;
-	u8 qui_subtype;
-	u8 version;
-	u8 ac_info;
-} __attribute__ ((packed));
-
-struct ieee80211_qos_ac_parameter {
-	u8 aci_aifsn;
-	u8 ecw_min_max;
-	__le16 tx_op_limit;
-} __attribute__ ((packed));
-
-struct ieee80211_qos_parameter_info {
-	struct ieee80211_qos_information_element info_element;
-	u8 reserved;
-	struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
-} __attribute__ ((packed));
-
-struct ieee80211_qos_parameters {
-	__le16 cw_min[QOS_QUEUE_NUM];
-	__le16 cw_max[QOS_QUEUE_NUM];
-	u8 aifs[QOS_QUEUE_NUM];
-	u8 flag[QOS_QUEUE_NUM];
-	__le16 tx_op_limit[QOS_QUEUE_NUM];
-} __attribute__ ((packed));
-
-struct ieee80211_qos_data {
-	struct ieee80211_qos_parameters parameters;
-	int active;
-	int supported;
-	u8 param_count;
-	u8 old_param_count;
-};
-
-struct ieee80211_tim_parameters {
-	u8 tim_count;
-	u8 tim_period;
-} __attribute__ ((packed));
-
-/*******************************************************/
-
-enum {				/* ieee80211_basic_report.map */
-	IEEE80211_BASIC_MAP_BSS = (1 << 0),
-	IEEE80211_BASIC_MAP_OFDM = (1 << 1),
-	IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2),
-	IEEE80211_BASIC_MAP_RADAR = (1 << 3),
-	IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4),
-	/* Bits 5-7 are reserved */
-
-};
-struct ieee80211_basic_report {
-	u8 channel;
-	__le64 start_time;
-	__le16 duration;
-	u8 map;
-} __attribute__ ((packed));
-
-enum {				/* ieee80211_measurement_request.mode */
-	/* Bit 0 is reserved */
-	IEEE80211_MEASUREMENT_ENABLE = (1 << 1),
-	IEEE80211_MEASUREMENT_REQUEST = (1 << 2),
-	IEEE80211_MEASUREMENT_REPORT = (1 << 3),
-	/* Bits 4-7 are reserved */
-};
-
-enum {
-	IEEE80211_REPORT_BASIC = 0,	/* required */
-	IEEE80211_REPORT_CCA = 1,	/* optional */
-	IEEE80211_REPORT_RPI = 2,	/* optional */
-	/* 3-255 reserved */
-};
-
-struct ieee80211_measurement_params {
-	u8 channel;
-	__le64 start_time;
-	__le16 duration;
-} __attribute__ ((packed));
-
-struct ieee80211_measurement_request {
-	struct ieee80211_info_element ie;
-	u8 token;
-	u8 mode;
-	u8 type;
-	struct ieee80211_measurement_params params[0];
-} __attribute__ ((packed));
-
-struct ieee80211_measurement_report {
-	struct ieee80211_info_element ie;
-	u8 token;
-	u8 mode;
-	u8 type;
-	union {
-		struct ieee80211_basic_report basic[0];
-	} u;
-} __attribute__ ((packed));
-
-struct ieee80211_tpc_report {
-	u8 transmit_power;
-	u8 link_margin;
-} __attribute__ ((packed));
-
-struct ieee80211_channel_map {
-	u8 channel;
-	u8 map;
-} __attribute__ ((packed));
-
-struct ieee80211_ibss_dfs {
-	struct ieee80211_info_element ie;
-	u8 owner[ETH_ALEN];
-	u8 recovery_interval;
-	struct ieee80211_channel_map channel_map[0];
-};
-
-struct ieee80211_csa {
-	u8 mode;
-	u8 channel;
-	u8 count;
-} __attribute__ ((packed));
-
-struct ieee80211_quiet {
-	u8 count;
-	u8 period;
-	u8 duration;
-	u8 offset;
-} __attribute__ ((packed));
-
-struct ieee80211_network {
-	/* These entries are used to identify a unique network */
-	u8 bssid[ETH_ALEN];
-	u8 channel;
-	/* Ensure null-terminated for any debug msgs */
-	u8 ssid[IW_ESSID_MAX_SIZE + 1];
-	u8 ssid_len;
-
-	struct ieee80211_qos_data qos_data;
-
-	/* These are network statistics */
-	struct ieee80211_rx_stats stats;
-	u16 capability;
-	u8 rates[MAX_RATES_LENGTH];
-	u8 rates_len;
-	u8 rates_ex[MAX_RATES_EX_LENGTH];
-	u8 rates_ex_len;
-	unsigned long last_scanned;
-	u8 mode;
-	u32 flags;
-	u32 last_associate;
-	u32 time_stamp[2];
-	u16 beacon_interval;
-	u16 listen_interval;
-	u16 atim_window;
-	u8 erp_value;
-	u8 wpa_ie[MAX_WPA_IE_LEN];
-	size_t wpa_ie_len;
-	u8 rsn_ie[MAX_WPA_IE_LEN];
-	size_t rsn_ie_len;
-	struct ieee80211_tim_parameters tim;
-
-	/* 802.11h info */
-
-	/* Power Constraint - mandatory if spctrm mgmt required */
-	u8 power_constraint;
-
-	/* TPC Report - mandatory if spctrm mgmt required */
-	struct ieee80211_tpc_report tpc_report;
-
-	/* IBSS DFS - mandatory if spctrm mgmt required and IBSS
-	 * NOTE: This is variable length and so must be allocated dynamically */
-	struct ieee80211_ibss_dfs *ibss_dfs;
-
-	/* Channel Switch Announcement - optional if spctrm mgmt required */
-	struct ieee80211_csa csa;
-
-	/* Quiet - optional if spctrm mgmt required */
-	struct ieee80211_quiet quiet;
-
-	struct list_head list;
-};
-
-enum ieee80211_state {
-	IEEE80211_UNINITIALIZED = 0,
-	IEEE80211_INITIALIZED,
-	IEEE80211_ASSOCIATING,
-	IEEE80211_ASSOCIATED,
-	IEEE80211_AUTHENTICATING,
-	IEEE80211_AUTHENTICATED,
-	IEEE80211_SHUTDOWN
-};
-
-#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
-#define DEFAULT_FTS 2346
-
-#define CFG_IEEE80211_RESERVE_FCS (1<<0)
-#define CFG_IEEE80211_COMPUTE_FCS (1<<1)
-#define CFG_IEEE80211_RTS (1<<2)
-
-#define IEEE80211_24GHZ_MIN_CHANNEL 1
-#define IEEE80211_24GHZ_MAX_CHANNEL 14
-#define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \
-				  IEEE80211_24GHZ_MIN_CHANNEL + 1)
-
-#define IEEE80211_52GHZ_MIN_CHANNEL 34
-#define IEEE80211_52GHZ_MAX_CHANNEL 165
-#define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \
-				  IEEE80211_52GHZ_MIN_CHANNEL + 1)
-
-enum {
-	IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
-	IEEE80211_CH_80211H_RULES = (1 << 1),
-	IEEE80211_CH_B_ONLY = (1 << 2),
-	IEEE80211_CH_NO_IBSS = (1 << 3),
-	IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
-	IEEE80211_CH_RADAR_DETECT = (1 << 5),
-	IEEE80211_CH_INVALID = (1 << 6),
-};
-
-struct ieee80211_channel {
-	u32 freq;	/* in MHz */
-	u8 channel;
-	u8 flags;
-	u8 max_power;	/* in dBm */
-};
-
-struct ieee80211_geo {
-	u8 name[4];
-	u8 bg_channels;
-	u8 a_channels;
-	struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
-	struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
-};
-
-struct ieee80211_device {
-	struct net_device *dev;
-	struct ieee80211_security sec;
-
-	/* Bookkeeping structures */
-	struct net_device_stats stats;
-	struct ieee80211_stats ieee_stats;
-
-	struct ieee80211_geo geo;
-
-	/* Probe / Beacon management */
-	struct list_head network_free_list;
-	struct list_head network_list;
-	struct ieee80211_network *networks;
-	int scans;
-	int scan_age;
-
-	int iw_mode;		/* operating mode (IW_MODE_*) */
-	struct iw_spy_data spy_data;	/* iwspy support */
-
-	spinlock_t lock;
-
-	int tx_headroom;	/* Set to size of any additional room needed at front
-				 * of allocated Tx SKBs */
-	u32 config;
-
-	/* WEP and other encryption related settings at the device level */
-	int open_wep;		/* Set to 1 to allow unencrypted frames */
-
-	int reset_on_keychange;	/* Set to 1 if the HW needs to be reset on
-				 * WEP key changes */
-
-	/* If the host performs {en,de}cryption, then set to 1 */
-	int host_encrypt;
-	int host_encrypt_msdu;
-	int host_decrypt;
-	/* host performs multicast decryption */
-	int host_mc_decrypt;
-
-	/* host should strip IV and ICV from protected frames */
-	/* meaningful only when hardware decryption is being used */
-	int host_strip_iv_icv;
-
-	int host_open_frag;
-	int host_build_iv;
-	int ieee802_1x;		/* is IEEE 802.1X used */
-
-	/* WPA data */
-	int wpa_enabled;
-	int drop_unencrypted;
-	int privacy_invoked;
-	size_t wpa_ie_len;
-	u8 *wpa_ie;
-
-	struct lib80211_crypt_info crypt_info;
-
-	int bcrx_sta_key;	/* use individual keys to override default keys even
-				 * with RX of broad/multicast frames */
-
-	/* Fragmentation structures */
-	struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
-	unsigned int frag_next_idx;
-	u16 fts;		/* Fragmentation Threshold */
-	u16 rts;		/* RTS threshold */
-
-	/* Association info */
-	u8 bssid[ETH_ALEN];
-
-	enum ieee80211_state state;
-
-	int mode;		/* A, B, G */
-	int modulation;		/* CCK, OFDM */
-	int freq_band;		/* 2.4Ghz, 5.2Ghz, Mixed */
-	int abg_true;		/* ABG flag              */
-
-	int perfect_rssi;
-	int worst_rssi;
-
-	u16 prev_seq_ctl;	/* used to drop duplicate frames */
-
-	/* Callback functions */
-	void (*set_security) (struct net_device * dev,
-			      struct ieee80211_security * sec);
-	int (*hard_start_xmit) (struct ieee80211_txb * txb,
-				struct net_device * dev, int pri);
-	int (*reset_port) (struct net_device * dev);
-	int (*is_queue_full) (struct net_device * dev, int pri);
-
-	int (*handle_management) (struct net_device * dev,
-				  struct ieee80211_network * network, u16 type);
-	int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
-
-	/* Typical STA methods */
-	int (*handle_auth) (struct net_device * dev,
-			    struct ieee80211_auth * auth);
-	int (*handle_deauth) (struct net_device * dev,
-			      struct ieee80211_deauth * auth);
-	int (*handle_action) (struct net_device * dev,
-			      struct ieee80211_action * action,
-			      struct ieee80211_rx_stats * stats);
-	int (*handle_disassoc) (struct net_device * dev,
-				struct ieee80211_disassoc * assoc);
-	int (*handle_beacon) (struct net_device * dev,
-			      struct ieee80211_beacon * beacon,
-			      struct ieee80211_network * network);
-	int (*handle_probe_response) (struct net_device * dev,
-				      struct ieee80211_probe_response * resp,
-				      struct ieee80211_network * network);
-	int (*handle_probe_request) (struct net_device * dev,
-				     struct ieee80211_probe_request * req,
-				     struct ieee80211_rx_stats * stats);
-	int (*handle_assoc_response) (struct net_device * dev,
-				      struct ieee80211_assoc_response * resp,
-				      struct ieee80211_network * network);
-
-	/* Typical AP methods */
-	int (*handle_assoc_request) (struct net_device * dev);
-	int (*handle_reassoc_request) (struct net_device * dev,
-				       struct ieee80211_reassoc_request * req);
-
-	/* This must be the last item so that it points to the data
-	 * allocated beyond this structure by alloc_ieee80211 */
-	u8 priv[0];
-};
-
-#define IEEE_A            (1<<0)
-#define IEEE_B            (1<<1)
-#define IEEE_G            (1<<2)
-#define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
-
-static inline void *ieee80211_priv(struct net_device *dev)
-{
-	return ((struct ieee80211_device *)netdev_priv(dev))->priv;
-}
-
-static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
-					  int mode)
-{
-	/*
-	 * It is possible for both access points and our device to support
-	 * combinations of modes, so as long as there is one valid combination
-	 * of ap/device supported modes, then return success
-	 *
-	 */
-	if ((mode & IEEE_A) &&
-	    (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
-	    (ieee->freq_band & IEEE80211_52GHZ_BAND))
-		return 1;
-
-	if ((mode & IEEE_G) &&
-	    (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
-	    (ieee->freq_band & IEEE80211_24GHZ_BAND))
-		return 1;
-
-	if ((mode & IEEE_B) &&
-	    (ieee->modulation & IEEE80211_CCK_MODULATION) &&
-	    (ieee->freq_band & IEEE80211_24GHZ_BAND))
-		return 1;
-
-	return 0;
-}
-
-static inline int ieee80211_get_hdrlen(u16 fc)
-{
-	int hdrlen = IEEE80211_3ADDR_LEN;
-	u16 stype = WLAN_FC_GET_STYPE(fc);
-
-	switch (WLAN_FC_GET_TYPE(fc)) {
-	case IEEE80211_FTYPE_DATA:
-		if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
-			hdrlen = IEEE80211_4ADDR_LEN;
-		if (stype & IEEE80211_STYPE_QOS_DATA)
-			hdrlen += 2;
-		break;
-	case IEEE80211_FTYPE_CTL:
-		switch (WLAN_FC_GET_STYPE(fc)) {
-		case IEEE80211_STYPE_CTS:
-		case IEEE80211_STYPE_ACK:
-			hdrlen = IEEE80211_1ADDR_LEN;
-			break;
-		default:
-			hdrlen = IEEE80211_2ADDR_LEN;
-			break;
-		}
-		break;
-	}
-
-	return hdrlen;
-}
-
-static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
-{
-	switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
-	case IEEE80211_1ADDR_LEN:
-		return ((struct ieee80211_hdr_1addr *)hdr)->payload;
-	case IEEE80211_2ADDR_LEN:
-		return ((struct ieee80211_hdr_2addr *)hdr)->payload;
-	case IEEE80211_3ADDR_LEN:
-		return ((struct ieee80211_hdr_3addr *)hdr)->payload;
-	case IEEE80211_4ADDR_LEN:
-		return ((struct ieee80211_hdr_4addr *)hdr)->payload;
-	}
-	return NULL;
-}
-
-static inline int ieee80211_is_ofdm_rate(u8 rate)
-{
-	switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
-	case IEEE80211_OFDM_RATE_6MB:
-	case IEEE80211_OFDM_RATE_9MB:
-	case IEEE80211_OFDM_RATE_12MB:
-	case IEEE80211_OFDM_RATE_18MB:
-	case IEEE80211_OFDM_RATE_24MB:
-	case IEEE80211_OFDM_RATE_36MB:
-	case IEEE80211_OFDM_RATE_48MB:
-	case IEEE80211_OFDM_RATE_54MB:
-		return 1;
-	}
-	return 0;
-}
-
-static inline int ieee80211_is_cck_rate(u8 rate)
-{
-	switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
-	case IEEE80211_CCK_RATE_1MB:
-	case IEEE80211_CCK_RATE_2MB:
-	case IEEE80211_CCK_RATE_5MB:
-	case IEEE80211_CCK_RATE_11MB:
-		return 1;
-	}
-	return 0;
-}
-
-/* ieee80211.c */
-extern void free_ieee80211(struct net_device *dev);
-extern struct net_device *alloc_ieee80211(int sizeof_priv);
-
-extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
-
-/* ieee80211_tx.c */
-extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
-extern void ieee80211_txb_free(struct ieee80211_txb *);
-
-/* ieee80211_rx.c */
-extern void ieee80211_rx_any(struct ieee80211_device *ieee,
-		     struct sk_buff *skb, struct ieee80211_rx_stats *stats);
-extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
-			struct ieee80211_rx_stats *rx_stats);
-/* make sure to set stats->len */
-extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
-			     struct ieee80211_hdr_4addr *header,
-			     struct ieee80211_rx_stats *stats);
-extern void ieee80211_network_reset(struct ieee80211_network *network);
-
-/* ieee80211_geo.c */
-extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
-						     *ieee);
-extern int ieee80211_set_geo(struct ieee80211_device *ieee,
-			     const struct ieee80211_geo *geo);
-
-extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
-				      u8 channel);
-extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
-				      u8 channel);
-extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
-extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee,
-				      u8 channel);
-extern const struct ieee80211_channel *ieee80211_get_channel(struct
-							     ieee80211_device
-							     *ieee, u8 channel);
-extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee,
-				      u8 channel);
-
-/* ieee80211_wx.c */
-extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
-				 struct iw_request_info *info,
-				 union iwreq_data *wrqu, char *key);
-extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
-				   struct iw_request_info *info,
-				   union iwreq_data *wrqu, char *key);
-extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
-				   struct iw_request_info *info,
-				   union iwreq_data *wrqu, char *key);
-extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
-				      struct iw_request_info *info,
-				      union iwreq_data *wrqu, char *extra);
-extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
-				      struct iw_request_info *info,
-				      union iwreq_data *wrqu, char *extra);
-
-static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
-{
-	ieee->scans++;
-}
-
-static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
-{
-	return ieee->scans;
-}
-
-#endif				/* IEEE80211_H */
-- 
cgit v1.2.3


From 96f5e66e8a79810e2982cdcfa28e554f3d97da21 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 12 Feb 2009 00:51:53 +0100
Subject: mac80211: fix aggregation for hardware with ampdu queues

Hardware with AMPDU queues currently has broken aggregation.

This patch fixes it by making all A-MPDUs go over the regular AC queues,
but keeping track of the hardware queues in mac80211. As a first rough
version, it actually stops the AC queue for extended periods of time,
which can be removed by adding buffering internal to mac80211, but is
currently not a huge problem because people rarely use multiple TIDs
that are in the same AC (and iwlwifi currently doesn't operate as AP).

This is a short-term fix, my current medium-term plan, which I hope to
execute soon as well, but am not sure can finish before .30, looks like
this:
 1) rework the internal queuing layer in mac80211 that we use for
    fragments if the driver stopped queue in the middle of a fragmented
    frame to be able to queue more frames at once (rather than just a
    single frame with its fragments)
 2) instead of stopping the entire AC queue, queue up the frames in a
    per-station/per-TID queue during aggregation session initiation,
    when the session has come up take all those frames and put them
    onto the queue from 1)
 3) push the ampdu queue layer abstraction this patch introduces in
    mac80211 into the driver, and remove the virtual queue stuff from
    mac80211 again

This plan will probably also affect ath9k in that mac80211 queues the
frames instead of passing them down, even when there are no ampdu queues.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h     |   5 --
 net/mac80211/agg-tx.c      | 186 ++++++++++++++++++++++++++++++---------------
 net/mac80211/ieee80211_i.h |  20 +++--
 net/mac80211/main.c        |   9 ++-
 net/mac80211/sta_info.c    |  15 +++-
 net/mac80211/sta_info.h    |   4 +-
 net/mac80211/tx.c          |  18 +++--
 net/mac80211/util.c        |  75 ++++++++++++++----
 net/mac80211/wme.c         | 161 +--------------------------------------
 net/mac80211/wme.h         |   6 --
 10 files changed, 241 insertions(+), 258 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 88fa3e03e3e9..31fd8bab2173 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1022,11 +1022,6 @@ static inline int ieee80211_num_regular_queues(struct ieee80211_hw *hw)
 	return hw->queues;
 }
 
-static inline int ieee80211_num_queues(struct ieee80211_hw *hw)
-{
-	return hw->queues + hw->ampdu_queues;
-}
-
 static inline struct ieee80211_rate *
 ieee80211_get_tx_rate(const struct ieee80211_hw *hw,
 		      const struct ieee80211_tx_info *c)
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 1232d9f01ca9..0217b68c47ca 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -132,9 +132,24 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 
 	state = &sta->ampdu_mlme.tid_state_tx[tid];
 
-	if (local->hw.ampdu_queues)
-		ieee80211_stop_queue(&local->hw, sta->tid_to_tx_q[tid]);
+	if (local->hw.ampdu_queues) {
+		if (initiator) {
+			/*
+			 * Stop the AC queue to avoid issues where we send
+			 * unaggregated frames already before the delba.
+			 */
+			ieee80211_stop_queue_by_reason(&local->hw,
+				local->hw.queues + sta->tid_to_tx_q[tid],
+				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+		}
 
+		/*
+		 * Pretend the driver woke the queue, just in case
+		 * it disabled it before the session was stopped.
+		 */
+		ieee80211_wake_queue(
+			&local->hw, local->hw.queues + sta->tid_to_tx_q[tid]);
+	}
 	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
 		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
 
@@ -144,8 +159,6 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 	/* HW shall not deny going back to legacy */
 	if (WARN_ON(ret)) {
 		*state = HT_AGG_STATE_OPERATIONAL;
-		if (local->hw.ampdu_queues)
-			ieee80211_wake_queue(&local->hw, sta->tid_to_tx_q[tid]);
 	}
 
 	return ret;
@@ -189,14 +202,19 @@ static void sta_addba_resp_timer_expired(unsigned long data)
 	spin_unlock_bh(&sta->lock);
 }
 
+static inline int ieee80211_ac_from_tid(int tid)
+{
+	return ieee802_1d_to_ac[tid & 7];
+}
+
 int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *sdata;
-	u16 start_seq_num;
 	u8 *state;
-	int ret = 0;
+	int i, qn = -1, ret = 0;
+	u16 start_seq_num;
 
 	if (WARN_ON(!local->ops->ampdu_action))
 		return -EINVAL;
@@ -209,6 +227,13 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	       ra, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
+	if (hw->ampdu_queues && ieee80211_ac_from_tid(tid) == 0) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "rejecting on voice AC\n");
+#endif
+		return -EINVAL;
+	}
+
 	rcu_read_lock();
 
 	sta = sta_info_get(local, ra);
@@ -217,7 +242,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		printk(KERN_DEBUG "Could not find the station\n");
 #endif
 		ret = -ENOENT;
-		goto exit;
+		goto unlock;
 	}
 
 	/*
@@ -230,11 +255,13 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	    sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 	    sta->sdata->vif.type != NL80211_IFTYPE_AP) {
 		ret = -EINVAL;
-		goto exit;
+		goto unlock;
 	}
 
 	spin_lock_bh(&sta->lock);
 
+	sdata = sta->sdata;
+
 	/* we have tried too many times, receiver does not want A-MPDU */
 	if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) {
 		ret = -EBUSY;
@@ -252,6 +279,42 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		goto err_unlock_sta;
 	}
 
+	if (hw->ampdu_queues) {
+		spin_lock(&local->queue_stop_reason_lock);
+		/* reserve a new queue for this session */
+		for (i = 0; i < local->hw.ampdu_queues; i++) {
+			if (local->ampdu_ac_queue[i] < 0) {
+				qn = i;
+				local->ampdu_ac_queue[qn] =
+					ieee80211_ac_from_tid(tid);
+				break;
+			}
+		}
+		spin_unlock(&local->queue_stop_reason_lock);
+
+		if (qn < 0) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+			printk(KERN_DEBUG "BA request denied - "
+			       "queue unavailable for tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+			ret = -ENOSPC;
+			goto err_unlock_sta;
+		}
+
+		/*
+		 * If we successfully allocate the session, we can't have
+		 * anything going on on the queue this TID maps into, so
+		 * stop it for now. This is a "virtual" stop using the same
+		 * mechanism that drivers will use.
+		 *
+		 * XXX: queue up frames for this session in the sta_info
+		 *	struct instead to avoid hitting all other STAs.
+		 */
+		ieee80211_stop_queue_by_reason(
+			&local->hw, hw->queues + qn,
+			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+	}
+
 	/* prepare A-MPDU MLME for Tx aggregation */
 	sta->ampdu_mlme.tid_tx[tid] =
 			kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
@@ -262,8 +325,9 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 					tid);
 #endif
 		ret = -ENOMEM;
-		goto err_unlock_sta;
+		goto err_return_queue;
 	}
+
 	/* Tx timer */
 	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
 			sta_addba_resp_timer_expired;
@@ -271,49 +335,25 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 			(unsigned long)&sta->timer_to_tid[tid];
 	init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
 
-	if (hw->ampdu_queues) {
-		/* create a new queue for this aggregation */
-		ret = ieee80211_ht_agg_queue_add(local, sta, tid);
-
-		/* case no queue is available to aggregation
-		 * don't switch to aggregation */
-		if (ret) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-			printk(KERN_DEBUG "BA request denied - "
-			       "queue unavailable for tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-			goto err_unlock_queue;
-		}
-	}
-	sdata = sta->sdata;
-
 	/* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
 	 * call back right away, it must see that the flow has begun */
 	*state |= HT_ADDBA_REQUESTED_MSK;
 
-	/* This is slightly racy because the queue isn't stopped */
 	start_seq_num = sta->tid_seq[tid];
 
 	ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
 				       &sta->sta, tid, &start_seq_num);
 
 	if (ret) {
-		/* No need to requeue the packets in the agg queue, since we
-		 * held the tx lock: no packet could be enqueued to the newly
-		 * allocated queue */
-		if (hw->ampdu_queues)
-			ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "BA request denied - HW unavailable for"
 					" tid %d\n", tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 		*state = HT_AGG_STATE_IDLE;
-		goto err_unlock_queue;
+		goto err_free;
 	}
+	sta->tid_to_tx_q[tid] = qn;
 
-	/* Will put all the packets in the new SW queue */
-	if (hw->ampdu_queues)
-		ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
 	spin_unlock_bh(&sta->lock);
 
 	/* send an addBA request */
@@ -322,7 +362,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 			sta->ampdu_mlme.dialog_token_allocator;
 	sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num;
 
-
 	ieee80211_send_addba_request(sta->sdata, ra, tid,
 			 sta->ampdu_mlme.tid_tx[tid]->dialog_token,
 			 sta->ampdu_mlme.tid_tx[tid]->ssn,
@@ -334,15 +373,24 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 #ifdef CONFIG_MAC80211_HT_DEBUG
 	printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
 #endif
-	goto exit;
+	goto unlock;
 
-err_unlock_queue:
+ err_free:
 	kfree(sta->ampdu_mlme.tid_tx[tid]);
 	sta->ampdu_mlme.tid_tx[tid] = NULL;
-	ret = -EBUSY;
-err_unlock_sta:
+ err_return_queue:
+	if (qn >= 0) {
+		/* We failed, so start queue again right away. */
+		ieee80211_wake_queue_by_reason(hw, hw->queues + qn,
+			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+		/* give queue back to pool */
+		spin_lock(&local->queue_stop_reason_lock);
+		local->ampdu_ac_queue[qn] = -1;
+		spin_unlock(&local->queue_stop_reason_lock);
+	}
+ err_unlock_sta:
 	spin_unlock_bh(&sta->lock);
-exit:
+ unlock:
 	rcu_read_unlock();
 	return ret;
 }
@@ -375,7 +423,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	state = &sta->ampdu_mlme.tid_state_tx[tid];
 	spin_lock_bh(&sta->lock);
 
-	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+	if (WARN_ON(!(*state & HT_ADDBA_REQUESTED_MSK))) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
 				*state);
@@ -385,7 +433,8 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		return;
 	}
 
-	WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
+	if (WARN_ON(*state & HT_ADDBA_DRV_READY_MSK))
+		goto out;
 
 	*state |= HT_ADDBA_DRV_READY_MSK;
 
@@ -393,9 +442,18 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
 #endif
-		if (hw->ampdu_queues)
-			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		if (hw->ampdu_queues) {
+			/*
+			 * Wake up this queue, we stopped it earlier,
+			 * this will in turn wake the entire AC.
+			 */
+			ieee80211_wake_queue_by_reason(hw,
+				hw->queues + sta->tid_to_tx_q[tid],
+				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+		}
 	}
+
+ out:
 	spin_unlock_bh(&sta->lock);
 	rcu_read_unlock();
 }
@@ -485,7 +543,6 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct sta_info *sta;
 	u8 *state;
-	int agg_queue;
 
 	if (tid >= STA_TID_NUM) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
@@ -527,19 +584,19 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
 		ieee80211_send_delba(sta->sdata, ra, tid,
 			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
 
-	if (hw->ampdu_queues) {
-		agg_queue = sta->tid_to_tx_q[tid];
-		ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
+	spin_lock_bh(&sta->lock);
 
-		/* We just requeued the all the frames that were in the
-		 * removed queue, and since we might miss a softirq we do
-		 * netif_schedule_queue.  ieee80211_wake_queue is not used
-		 * here as this queue is not necessarily stopped
+	if (*state & HT_AGG_STATE_INITIATOR_MSK &&
+	    hw->ampdu_queues) {
+		/*
+		 * Wake up this queue, we stopped it earlier,
+		 * this will in turn wake the entire AC.
 		 */
-		netif_schedule_queue(netdev_get_tx_queue(local->mdev,
-							 agg_queue));
+		ieee80211_wake_queue_by_reason(hw,
+			hw->queues + sta->tid_to_tx_q[tid],
+			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
 	}
-	spin_lock_bh(&sta->lock);
+
 	*state = HT_AGG_STATE_IDLE;
 	sta->ampdu_mlme.addba_req_num[tid] = 0;
 	kfree(sta->ampdu_mlme.tid_tx[tid]);
@@ -613,12 +670,21 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 	if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
 			== WLAN_STATUS_SUCCESS) {
+		u8 curstate = *state;
+
 		*state |= HT_ADDBA_RECEIVED_MSK;
-		sta->ampdu_mlme.addba_req_num[tid] = 0;
 
-		if (*state == HT_AGG_STATE_OPERATIONAL &&
-		    local->hw.ampdu_queues)
-			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		if (hw->ampdu_queues && *state != curstate &&
+		    *state == HT_AGG_STATE_OPERATIONAL) {
+			/*
+			 * Wake up this queue, we stopped it earlier,
+			 * this will in turn wake the entire AC.
+			 */
+			ieee80211_wake_queue_by_reason(hw,
+				hw->queues + sta->tid_to_tx_q[tid],
+				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+		}
+		sta->ampdu_mlme.addba_req_num[tid] = 0;
 
 		if (local->ops->ampdu_action) {
 			(void)local->ops->ampdu_action(hw,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 2cb743ed9f9c..e2bbd3f11797 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -564,12 +564,10 @@ enum {
 enum queue_stop_reason {
 	IEEE80211_QUEUE_STOP_REASON_DRIVER,
 	IEEE80211_QUEUE_STOP_REASON_PS,
-	IEEE80211_QUEUE_STOP_REASON_CSA
+	IEEE80211_QUEUE_STOP_REASON_CSA,
+	IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
 };
 
-/* maximum number of hardware queues we support. */
-#define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
-
 struct ieee80211_master_priv {
 	struct ieee80211_local *local;
 };
@@ -582,9 +580,15 @@ struct ieee80211_local {
 
 	const struct ieee80211_ops *ops;
 
-	unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
-	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
+	/* AC queue corresponding to each AMPDU queue */
+	s8 ampdu_ac_queue[IEEE80211_MAX_AMPDU_QUEUES];
+	unsigned int amdpu_ac_stop_refcnt[IEEE80211_MAX_AMPDU_QUEUES];
+
+	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES +
+					 IEEE80211_MAX_AMPDU_QUEUES];
+	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
 	spinlock_t queue_stop_reason_lock;
+
 	struct net_device *mdev; /* wmaster# - "master" 802.11 device */
 	int open_count;
 	int monitors, cooked_mntrs;
@@ -1042,6 +1046,10 @@ void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
+void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason);
+void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason);
 
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 795f8c4a9fa0..e9181981adcd 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -705,7 +705,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 					const struct ieee80211_ops *ops)
 {
 	struct ieee80211_local *local;
-	int priv_size;
+	int priv_size, i;
 	struct wiphy *wiphy;
 
 	/* Ensure 32-byte alignment of our private data and hw private data.
@@ -779,6 +779,11 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	setup_timer(&local->dynamic_ps_timer,
 		    ieee80211_dynamic_ps_timer, (unsigned long) local);
 
+	for (i = 0; i < IEEE80211_MAX_AMPDU_QUEUES; i++)
+		local->ampdu_ac_queue[i] = -1;
+	/* using an s8 won't work with more than that */
+	BUILD_BUG_ON(IEEE80211_MAX_AMPDU_QUEUES > 127);
+
 	sta_info_init(local);
 
 	tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
@@ -872,7 +877,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv),
 			       "wmaster%d", ieee80211_master_setup,
-			       ieee80211_num_queues(hw));
+			       hw->queues);
 	if (!mdev)
 		goto fail_mdev_alloc;
 
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 634f65c0130e..4ba3c540fcf3 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -202,6 +202,18 @@ void sta_info_destroy(struct sta_info *sta)
 		/* Make sure timer won't free the tid_rx struct, see below */
 		if (tid_rx)
 			tid_rx->shutdown = true;
+
+		/*
+		 * The stop callback cannot find this station any more, but
+		 * it didn't complete its work -- start the queue if necessary
+		 */
+		if (sta->ampdu_mlme.tid_state_tx[i] & HT_AGG_STATE_INITIATOR_MSK &&
+		    sta->ampdu_mlme.tid_state_tx[i] & HT_AGG_STATE_REQ_STOP_BA_MSK &&
+		    local->hw.ampdu_queues)
+			ieee80211_wake_queue_by_reason(&local->hw,
+				local->hw.queues + sta->tid_to_tx_q[i],
+				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+
 		spin_unlock_bh(&sta->lock);
 
 		/*
@@ -275,8 +287,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 		 * enable session_timer's data differentiation. refer to
 		 * sta_rx_agg_session_timer_expired for useage */
 		sta->timer_to_tid[i] = i;
-		/* tid to tx queue: initialize according to HW (0 is valid) */
-		sta->tid_to_tx_q[i] = ieee80211_num_queues(&local->hw);
+		sta->tid_to_tx_q[i] = -1;
 		/* rx */
 		sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE;
 		sta->ampdu_mlme.tid_rx[i] = NULL;
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index d9653231992f..a2921f15787b 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -200,7 +200,7 @@ struct sta_ampdu_mlme {
  * @tid_seq: per-TID sequence numbers for sending to this STA
  * @ampdu_mlme: A-MPDU state machine state
  * @timer_to_tid: identity mapping to ID timers
- * @tid_to_tx_q: map tid to tx queue
+ * @tid_to_tx_q: map tid to tx queue (invalid == negative values)
  * @llid: Local link ID
  * @plid: Peer link ID
  * @reason: Cancel reason on PLINK_HOLDING state
@@ -275,7 +275,7 @@ struct sta_info {
 	 */
 	struct sta_ampdu_mlme ampdu_mlme;
 	u8 timer_to_tid[STA_TID_NUM];
-	u8 tid_to_tx_q[STA_TID_NUM];
+	s8 tid_to_tx_q[STA_TID_NUM];
 
 #ifdef CONFIG_MAC80211_MESH
 	/*
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 33926831c648..6aca49897d55 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -876,7 +876,6 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
 	return TX_CONTINUE;
 }
 
-
 /* actual transmit path */
 
 /*
@@ -1016,12 +1015,20 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 	tx->sta = sta_info_get(local, hdr->addr1);
 
 	if (tx->sta && ieee80211_is_data_qos(hdr->frame_control)) {
+		unsigned long flags;
 		qc = ieee80211_get_qos_ctl(hdr);
 		tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
 
+		spin_lock_irqsave(&tx->sta->lock, flags);
 		state = &tx->sta->ampdu_mlme.tid_state_tx[tid];
-		if (*state == HT_AGG_STATE_OPERATIONAL)
+		if (*state == HT_AGG_STATE_OPERATIONAL) {
 			info->flags |= IEEE80211_TX_CTL_AMPDU;
+			if (local->hw.ampdu_queues)
+				skb_set_queue_mapping(
+					skb, tx->local->hw.queues +
+					     tx->sta->tid_to_tx_q[tid]);
+		}
+		spin_unlock_irqrestore(&tx->sta->lock, flags);
 	}
 
 	if (is_multicast_ether_addr(hdr->addr1)) {
@@ -1085,7 +1092,8 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
 	int ret, i;
 
 	if (skb) {
-		if (netif_subqueue_stopped(local->mdev, skb))
+		if (ieee80211_queue_stopped(&local->hw,
+					    skb_get_queue_mapping(skb)))
 			return IEEE80211_TX_PENDING;
 
 		ret = local->ops->tx(local_to_hw(local), skb);
@@ -1101,8 +1109,8 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
 			info = IEEE80211_SKB_CB(tx->extra_frag[i]);
 			info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT |
 					 IEEE80211_TX_CTL_FIRST_FRAGMENT);
-			if (netif_subqueue_stopped(local->mdev,
-						   tx->extra_frag[i]))
+			if (ieee80211_queue_stopped(&local->hw,
+					skb_get_queue_mapping(tx->extra_frag[i])))
 				return IEEE80211_TX_FRAG_AGAIN;
 
 			ret = local->ops->tx(local_to_hw(local),
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 73c7d7345abd..92ea1770461b 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -344,15 +344,36 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	/* we don't need to track ampdu queues */
-	if (queue < ieee80211_num_regular_queues(hw)) {
-		__clear_bit(reason, &local->queue_stop_reasons[queue]);
+	if (queue >= hw->queues) {
+		if (local->ampdu_ac_queue[queue - hw->queues] < 0)
+			return;
+
+		/*
+		 * for virtual aggregation queues, we need to refcount the
+		 * internal mac80211 disable (multiple times!), keep track of
+		 * driver disable _and_ make sure the regular queue is
+		 * actually enabled.
+		 */
+		if (reason == IEEE80211_QUEUE_STOP_REASON_AGGREGATION)
+			local->amdpu_ac_stop_refcnt[queue - hw->queues]--;
+		else
+			__clear_bit(reason, &local->queue_stop_reasons[queue]);
 
-		if (local->queue_stop_reasons[queue] != 0)
-			/* someone still has this queue stopped */
+		if (local->queue_stop_reasons[queue] ||
+		    local->amdpu_ac_stop_refcnt[queue - hw->queues])
 			return;
+
+		/* now go on to treat the corresponding regular queue */
+		queue = local->ampdu_ac_queue[queue - hw->queues];
+		reason = IEEE80211_QUEUE_STOP_REASON_AGGREGATION;
 	}
 
+	__clear_bit(reason, &local->queue_stop_reasons[queue]);
+
+	if (local->queue_stop_reasons[queue] != 0)
+		/* someone still has this queue stopped */
+		return;
+
 	if (test_bit(queue, local->queues_pending)) {
 		set_bit(queue, local->queues_pending_run);
 		tasklet_schedule(&local->tx_pending_tasklet);
@@ -361,8 +382,8 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 	}
 }
 
-static void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
-					   enum queue_stop_reason reason)
+void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	unsigned long flags;
@@ -384,15 +405,33 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	/* we don't need to track ampdu queues */
-	if (queue < ieee80211_num_regular_queues(hw))
-		__set_bit(reason, &local->queue_stop_reasons[queue]);
+	if (queue >= hw->queues) {
+		if (local->ampdu_ac_queue[queue - hw->queues] < 0)
+			return;
+
+		/*
+		 * for virtual aggregation queues, we need to refcount the
+		 * internal mac80211 disable (multiple times!), keep track of
+		 * driver disable _and_ make sure the regular queue is
+		 * actually enabled.
+		 */
+		if (reason == IEEE80211_QUEUE_STOP_REASON_AGGREGATION)
+			local->amdpu_ac_stop_refcnt[queue - hw->queues]++;
+		else
+			__set_bit(reason, &local->queue_stop_reasons[queue]);
+
+		/* now go on to treat the corresponding regular queue */
+		queue = local->ampdu_ac_queue[queue - hw->queues];
+		reason = IEEE80211_QUEUE_STOP_REASON_AGGREGATION;
+	}
+
+	__set_bit(reason, &local->queue_stop_reasons[queue]);
 
 	netif_stop_subqueue(local->mdev, queue);
 }
 
-static void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
-					   enum queue_stop_reason reason)
+void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	unsigned long flags;
@@ -418,7 +457,7 @@ void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
 
 	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 
-	for (i = 0; i < ieee80211_num_queues(hw); i++)
+	for (i = 0; i < hw->queues; i++)
 		__ieee80211_stop_queue(hw, i, reason);
 
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
@@ -434,6 +473,16 @@ EXPORT_SYMBOL(ieee80211_stop_queues);
 int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
+	unsigned long flags;
+
+	if (queue >= hw->queues) {
+		spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+		queue = local->ampdu_ac_queue[queue - hw->queues];
+		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+		if (queue < 0)
+			return true;
+	}
+
 	return __netif_subqueue_stopped(local->mdev, queue);
 }
 EXPORT_SYMBOL(ieee80211_queue_stopped);
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index ac71b38f7cb5..093a4ab7f28b 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -114,9 +114,7 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 {
 	struct ieee80211_master_priv *mpriv = netdev_priv(dev);
 	struct ieee80211_local *local = mpriv->local;
-	struct ieee80211_hw *hw = &local->hw;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct sta_info *sta;
 	u16 queue;
 	u8 tid;
 
@@ -124,29 +122,11 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 	if (unlikely(queue >= local->hw.queues))
 		queue = local->hw.queues - 1;
 
-	if (skb->requeue) {
-		if (!hw->ampdu_queues)
-			return queue;
-
-		rcu_read_lock();
-		sta = sta_info_get(local, hdr->addr1);
-		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
-		if (sta) {
-			int ampdu_queue = sta->tid_to_tx_q[tid];
-
-			if ((ampdu_queue < ieee80211_num_queues(hw)) &&
-			    test_bit(ampdu_queue, local->queue_pool))
-				queue = ampdu_queue;
-		}
-		rcu_read_unlock();
-
-		return queue;
-	}
-
-	/* Now we know the 1d priority, fill in the QoS header if
-	 * there is one.
+	/*
+	 * Now we know the 1d priority, fill in the QoS header if
+	 * there is one (and we haven't done this before).
 	 */
-	if (ieee80211_is_data_qos(hdr->frame_control)) {
+	if (!skb->requeue && ieee80211_is_data_qos(hdr->frame_control)) {
 		u8 *p = ieee80211_get_qos_ctl(hdr);
 		u8 ack_policy = 0;
 		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
@@ -156,140 +136,7 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 		/* qos header is 2 bytes, second reserved */
 		*p++ = ack_policy | tid;
 		*p = 0;
-
-		if (!hw->ampdu_queues)
-			return queue;
-
-		rcu_read_lock();
-
-		sta = sta_info_get(local, hdr->addr1);
-		if (sta) {
-			int ampdu_queue = sta->tid_to_tx_q[tid];
-
-			if ((ampdu_queue < ieee80211_num_queues(hw)) &&
-			    test_bit(ampdu_queue, local->queue_pool))
-				queue = ampdu_queue;
-		}
-
-		rcu_read_unlock();
 	}
 
 	return queue;
 }
-
-int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
-			       struct sta_info *sta, u16 tid)
-{
-	int i;
-
-	/* XXX: currently broken due to cb/requeue use */
-	return -EPERM;
-
-	/* prepare the filter and save it for the SW queue
-	 * matching the received HW queue */
-
-	if (!local->hw.ampdu_queues)
-		return -EPERM;
-
-	/* try to get a Qdisc from the pool */
-	for (i = local->hw.queues; i < ieee80211_num_queues(&local->hw); i++)
-		if (!test_and_set_bit(i, local->queue_pool)) {
-			ieee80211_stop_queue(local_to_hw(local), i);
-			sta->tid_to_tx_q[tid] = i;
-
-			/* IF there are already pending packets
-			 * on this tid first we need to drain them
-			 * on the previous queue
-			 * since HT is strict in order */
-#ifdef CONFIG_MAC80211_HT_DEBUG
-			if (net_ratelimit())
-				printk(KERN_DEBUG "allocated aggregation queue"
-					" %d tid %d addr %pM pool=0x%lX\n",
-					i, tid, sta->sta.addr,
-					local->queue_pool[0]);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-			return 0;
-		}
-
-	return -EAGAIN;
-}
-
-/**
- * the caller needs to hold netdev_get_tx_queue(local->mdev, X)->lock
- */
-void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
-				   struct sta_info *sta, u16 tid,
-				   u8 requeue)
-{
-	int agg_queue = sta->tid_to_tx_q[tid];
-	struct ieee80211_hw *hw = &local->hw;
-
-	/* return the qdisc to the pool */
-	clear_bit(agg_queue, local->queue_pool);
-	sta->tid_to_tx_q[tid] = ieee80211_num_queues(hw);
-
-	if (requeue) {
-		ieee80211_requeue(local, agg_queue);
-	} else {
-		struct netdev_queue *txq;
-		spinlock_t *root_lock;
-		struct Qdisc *q;
-
-		txq = netdev_get_tx_queue(local->mdev, agg_queue);
-		q = rcu_dereference(txq->qdisc);
-		root_lock = qdisc_lock(q);
-
-		spin_lock_bh(root_lock);
-		qdisc_reset(q);
-		spin_unlock_bh(root_lock);
-	}
-}
-
-void ieee80211_requeue(struct ieee80211_local *local, int queue)
-{
-	struct netdev_queue *txq = netdev_get_tx_queue(local->mdev, queue);
-	struct sk_buff_head list;
-	spinlock_t *root_lock;
-	struct Qdisc *qdisc;
-	u32 len;
-
-	rcu_read_lock_bh();
-
-	qdisc = rcu_dereference(txq->qdisc);
-	if (!qdisc || !qdisc->dequeue)
-		goto out_unlock;
-
-	skb_queue_head_init(&list);
-
-	root_lock = qdisc_root_lock(qdisc);
-	spin_lock(root_lock);
-	for (len = qdisc->q.qlen; len > 0; len--) {
-		struct sk_buff *skb = qdisc->dequeue(qdisc);
-
-		if (skb)
-			__skb_queue_tail(&list, skb);
-	}
-	spin_unlock(root_lock);
-
-	for (len = list.qlen; len > 0; len--) {
-		struct sk_buff *skb = __skb_dequeue(&list);
-		u16 new_queue;
-
-		BUG_ON(!skb);
-		new_queue = ieee80211_select_queue(local->mdev, skb);
-		skb_set_queue_mapping(skb, new_queue);
-
-		txq = netdev_get_tx_queue(local->mdev, new_queue);
-
-
-		qdisc = rcu_dereference(txq->qdisc);
-		root_lock = qdisc_root_lock(qdisc);
-
-		spin_lock(root_lock);
-		qdisc_enqueue_root(skb, qdisc);
-		spin_unlock(root_lock);
-	}
-
-out_unlock:
-	rcu_read_unlock_bh();
-}
diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h
index bc62f28a4d3d..7520d2e014dc 100644
--- a/net/mac80211/wme.h
+++ b/net/mac80211/wme.h
@@ -21,11 +21,5 @@
 extern const int ieee802_1d_to_ac[8];
 
 u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb);
-int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
-			       struct sta_info *sta, u16 tid);
-void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
-				   struct sta_info *sta, u16 tid,
-				   u8 requeue);
-void ieee80211_requeue(struct ieee80211_local *local, int queue);
 
 #endif /* _WME_H */
-- 
cgit v1.2.3


From 81cb7623ad3b408f871fa36b774fc20d8dfccac0 Mon Sep 17 00:00:00 2001
From: Sujith <Sujith.Manoharan@atheros.com>
Date: Thu, 12 Feb 2009 11:38:37 +0530
Subject: mac80211: Extend the rate control API with an update callback

The AP can switch dynamically between 20/40 Mhz channel width,
in which case we switch the local operating channel, but the
rate control algorithm is not notified. This patch adds a new callback
to indicate such changes to the RC algorithm.

Currently, HT channel width change is notified, but this callback
can be used to indicate any new requirements that might come up later on.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 13 +++++++++++++
 net/mac80211/ht.c      | 13 +++++++++++++
 net/mac80211/rate.h    | 12 ++++++++++++
 3 files changed, 38 insertions(+)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 31fd8bab2173..e01c63aad66c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1974,6 +1974,16 @@ struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw,
 
 /* Rate control API */
 
+/**
+ * enum rate_control_changed - flags to indicate which parameter changed
+ *
+ * @IEEE80211_RC_HT_CHANGED: The HT parameters of the operating channel have
+ *	changed, rate control algorithm can update its internal state if needed.
+ */
+enum rate_control_changed {
+	IEEE80211_RC_HT_CHANGED = BIT(0)
+};
+
 /**
  * struct ieee80211_tx_rate_control - rate control information for/from RC algo
  *
@@ -2010,6 +2020,9 @@ struct rate_control_ops {
 	void *(*alloc_sta)(void *priv, struct ieee80211_sta *sta, gfp_t gfp);
 	void (*rate_init)(void *priv, struct ieee80211_supported_band *sband,
 			  struct ieee80211_sta *sta, void *priv_sta);
+	void (*rate_update)(void *priv, struct ieee80211_supported_band *sband,
+			    struct ieee80211_sta *sta,
+			    void *priv_sta, u32 changed);
 	void (*free_sta)(void *priv, struct ieee80211_sta *sta,
 			 void *priv_sta);
 
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 69b6e9a4df3d..4e3c72f20de7 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -17,6 +17,7 @@
 #include <net/wireless.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "rate.h"
 
 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
 				       struct ieee80211_ht_cap *ht_cap_ie,
@@ -93,7 +94,9 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_bss_ht_conf ht;
+	struct sta_info *sta;
 	u32 changed = 0;
 	bool enable_ht = true, ht_changed;
 	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
@@ -136,6 +139,16 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 	if (ht_changed) {
                 /* channel_type change automatically detected */
 		ieee80211_hw_config(local, 0);
+
+		rcu_read_lock();
+
+		sta = sta_info_get(local, ifmgd->bssid);
+		if (sta)
+			rate_control_rate_update(local, sband, sta,
+						 IEEE80211_RC_HT_CHANGED);
+
+		rcu_read_unlock();
+
         }
 
 	/* disable HT */
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index 928da625e281..b9164c9a9563 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -62,6 +62,18 @@ static inline void rate_control_rate_init(struct sta_info *sta)
 	ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
 }
 
+static inline void rate_control_rate_update(struct ieee80211_local *local,
+				    struct ieee80211_supported_band *sband,
+				    struct sta_info *sta, u32 changed)
+{
+	struct rate_control_ref *ref = local->rate_ctrl;
+	struct ieee80211_sta *ista = &sta->sta;
+	void *priv_sta = sta->rate_ctrl_priv;
+
+	if (ref->ops->rate_update)
+		ref->ops->rate_update(ref->priv, sband, ista,
+				      priv_sta, changed);
+}
 
 static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
 					   struct ieee80211_sta *sta,
-- 
cgit v1.2.3


From 70692ad2923a379e0a10f9ec2ad93fbbe084cc46 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Mon, 16 Feb 2009 19:39:13 +0200
Subject: nl80211: Optional IEs into scan request

This extends the NL80211_CMD_TRIGGER_SCAN command to allow applications
to specify a set of information element(s) to be added into Probe
Request frames with NL80211_ATTR_IE. This provides support for the
MLME-SCAN.request primitive parameter VendorSpecificInfo and can be
used, e.g., to implement WPS scanning.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h     |  4 ++++
 net/mac80211/ieee80211_i.h |  3 ++-
 net/mac80211/mlme.c        |  8 +++++---
 net/mac80211/scan.c        |  3 ++-
 net/mac80211/util.c        |  7 +++++--
 net/wireless/nl80211.c     | 21 ++++++++++++++++++++-
 6 files changed, 38 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index c0d1f5b708c5..33f43b0d08fb 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -525,6 +525,8 @@ struct cfg80211_ssid {
  * @n_ssids: number of SSIDs
  * @channels: channels to scan on.
  * @n_channels: number of channels for each band
+ * @ie: optional information element(s) to add into Probe Request or %NULL
+ * @ie_len: length of ie in octets
  * @wiphy: the wiphy this was for
  * @ifidx: the interface index
  */
@@ -533,6 +535,8 @@ struct cfg80211_scan_request {
 	int n_ssids;
 	struct ieee80211_channel **channels;
 	u32 n_channels;
+	u8 *ie;
+	size_t ie_len;
 
 	/* internal */
 	struct wiphy *wiphy;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 27d56414019d..d06c75720ced 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1093,7 +1093,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 			 u8 *extra, size_t extra_len,
 			 const u8 *bssid, int encrypt);
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      u8 *ssid, size_t ssid_len);
+			      u8 *ssid, size_t ssid_len,
+			      u8 *ie, size_t ie_len);
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 				  const size_t supp_rates_len,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index ec5a0900cba0..5a4977936f6f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -716,7 +716,7 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
 	 * will not answer to direct packet in unassociated state.
 	 */
 	ieee80211_send_probe_req(sdata, NULL,
-				 ifmgd->ssid, ifmgd->ssid_len);
+				 ifmgd->ssid, ifmgd->ssid_len, NULL, 0);
 
 	mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
 }
@@ -946,7 +946,8 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 			} else
 				ieee80211_send_probe_req(sdata, ifmgd->bssid,
 							 ifmgd->ssid,
-							 ifmgd->ssid_len);
+							 ifmgd->ssid_len,
+							 NULL, 0);
 			ifmgd->flags ^= IEEE80211_STA_PROBEREQ_POLL;
 		} else {
 			ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
@@ -955,7 +956,8 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 				ifmgd->last_probe = jiffies;
 				ieee80211_send_probe_req(sdata, ifmgd->bssid,
 							 ifmgd->ssid,
-							 ifmgd->ssid_len);
+							 ifmgd->ssid_len,
+							 NULL, 0);
 			}
 		}
 	}
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 08a1fc27ca10..c063f8204263 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -338,7 +338,8 @@ void ieee80211_scan_work(struct work_struct *work)
 			ieee80211_send_probe_req(
 				sdata, NULL,
 				local->scan_req->ssids[i].ssid,
-				local->scan_req->ssids[i].ssid_len);
+				local->scan_req->ssids[i].ssid_len,
+				local->scan_req->ie, local->scan_req->ie_len);
 		next_delay = IEEE80211_CHANNEL_TIME;
 		break;
 	}
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index dee17e5cbb89..e0431a1d218b 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -884,7 +884,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 }
 
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      u8 *ssid, size_t ssid_len)
+			      u8 *ssid, size_t ssid_len,
+			      u8 *ie, size_t ie_len)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
@@ -903,7 +904,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 	}
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
-			    extra_preq_ie_len);
+			    ie_len + extra_preq_ie_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
 		       "request\n", sdata->dev->name);
@@ -950,6 +951,8 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 		*pos = rate->bitrate / 5;
 	}
 
+	if (ie)
+		memcpy(skb_put(skb, ie_len), ie, ie_len);
 	if (extra_preq_ie)
 		memcpy(skb_put(skb, extra_preq_ie_len), extra_preq_ie,
 		       extra_preq_ie_len);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 298a4de59948..67b18b3a93a0 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2286,6 +2286,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 	struct wiphy *wiphy;
 	int err, tmp, n_ssids = 0, n_channels = 0, i;
 	enum ieee80211_band band;
+	size_t ie_len;
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
 	if (err)
@@ -2327,9 +2328,15 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 		goto out_unlock;
 	}
 
+	if (info->attrs[NL80211_ATTR_IE])
+		ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	else
+		ie_len = 0;
+
 	request = kzalloc(sizeof(*request)
 			+ sizeof(*ssid) * n_ssids
-			+ sizeof(channel) * n_channels, GFP_KERNEL);
+			+ sizeof(channel) * n_channels
+			+ ie_len, GFP_KERNEL);
 	if (!request) {
 		err = -ENOMEM;
 		goto out_unlock;
@@ -2340,6 +2347,12 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 	if (n_ssids)
 		request->ssids = (void *)(request->channels + n_channels);
 	request->n_ssids = n_ssids;
+	if (ie_len) {
+		if (request->ssids)
+			request->ie = (void *)(request->ssids + n_ssids);
+		else
+			request->ie = (void *)(request->channels + n_channels);
+	}
 
 	if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
 		/* user specified, bail out if channel not found */
@@ -2380,6 +2393,12 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 		}
 	}
 
+	if (info->attrs[NL80211_ATTR_IE]) {
+		request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+		memcpy(request->ie, nla_data(info->attrs[NL80211_ATTR_IE]),
+		       request->ie_len);
+	}
+
 	request->ifidx = dev->ifindex;
 	request->wiphy = &drv->wiphy;
 
-- 
cgit v1.2.3


From 98c8a60a04316e94ccea8221cf16768ce91bd214 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Tue, 17 Feb 2009 13:24:57 +0200
Subject: nl80211: Provide access to STA TX/RX packet counters

The TX/RX packet counters are needed to fill in RADIUS Accounting
attributes Acct-Output-Packets and Acct-Input-Packets. We already
collect the needed information, but only the TX/RX bytes were
previously exposed through nl80211. Allow applications to fetch the
packet counters, too, to provide more complete support for accounting.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h | 5 +++++
 include/net/cfg80211.h  | 8 ++++++++
 net/mac80211/cfg.c      | 4 ++++
 net/wireless/nl80211.c  | 6 ++++++
 4 files changed, 23 insertions(+)

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 8802d1bda382..f6e56370ea65 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -526,6 +526,9 @@ enum nl80211_rate_info {
  * @NL80211_STA_INFO_SIGNAL: signal strength of last received PPDU (u8, dBm)
  * @NL80211_STA_INFO_TX_BITRATE: current unicast tx rate, nested attribute
  * 	containing info as possible, see &enum nl80211_sta_info_txrate.
+ * @NL80211_STA_INFO_RX_PACKETS: total received packet (u32, from this station)
+ * @NL80211_STA_INFO_TX_PACKETS: total transmitted packets (u32, to this
+ *	station)
  */
 enum nl80211_sta_info {
 	__NL80211_STA_INFO_INVALID,
@@ -537,6 +540,8 @@ enum nl80211_sta_info {
 	NL80211_STA_INFO_PLINK_STATE,
 	NL80211_STA_INFO_SIGNAL,
 	NL80211_STA_INFO_TX_BITRATE,
+	NL80211_STA_INFO_RX_PACKETS,
+	NL80211_STA_INFO_TX_PACKETS,
 
 	/* keep last */
 	__NL80211_STA_INFO_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 33f43b0d08fb..8dcc46444037 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -178,6 +178,8 @@ struct station_parameters {
  * @STATION_INFO_SIGNAL: @signal filled
  * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
  *  (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
+ * @STATION_INFO_RX_PACKETS: @rx_packets filled
+ * @STATION_INFO_TX_PACKETS: @tx_packets filled
  */
 enum station_info_flags {
 	STATION_INFO_INACTIVE_TIME	= 1<<0,
@@ -188,6 +190,8 @@ enum station_info_flags {
 	STATION_INFO_PLINK_STATE	= 1<<5,
 	STATION_INFO_SIGNAL		= 1<<6,
 	STATION_INFO_TX_BITRATE		= 1<<7,
+	STATION_INFO_RX_PACKETS		= 1<<8,
+	STATION_INFO_TX_PACKETS		= 1<<9,
 };
 
 /**
@@ -235,6 +239,8 @@ struct rate_info {
  * @plink_state: mesh peer link state
  * @signal: signal strength of last received packet in dBm
  * @txrate: current unicast bitrate to this station
+ * @rx_packets: packets received from this station
+ * @tx_packets: packets transmitted to this station
  */
 struct station_info {
 	u32 filled;
@@ -246,6 +252,8 @@ struct station_info {
 	u8 plink_state;
 	s8 signal;
 	struct rate_info txrate;
+	u32 rx_packets;
+	u32 tx_packets;
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index f453bb7c564b..c43129efc3bf 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -341,11 +341,15 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 	sinfo->filled = STATION_INFO_INACTIVE_TIME |
 			STATION_INFO_RX_BYTES |
 			STATION_INFO_TX_BYTES |
+			STATION_INFO_RX_PACKETS |
+			STATION_INFO_TX_PACKETS |
 			STATION_INFO_TX_BITRATE;
 
 	sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 	sinfo->rx_bytes = sta->rx_bytes;
 	sinfo->tx_bytes = sta->tx_bytes;
+	sinfo->rx_packets = sta->rx_packets;
+	sinfo->tx_packets = sta->tx_packets;
 
 	if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
 		sinfo->filled |= STATION_INFO_SIGNAL;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 67b18b3a93a0..badccf98074e 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1206,6 +1206,12 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
 
 		nla_nest_end(msg, txrate);
 	}
+	if (sinfo->filled & STATION_INFO_RX_PACKETS)
+		NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
+			    sinfo->rx_packets);
+	if (sinfo->filled & STATION_INFO_TX_PACKETS)
+		NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
+			    sinfo->tx_packets);
 	nla_nest_end(msg, sinfoattr);
 
 	return genlmsg_end(msg, hdr);
-- 
cgit v1.2.3


From 77965c970d7da9c9b6349ff2b1d9adecf54c403b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 18 Feb 2009 18:45:06 +0100
Subject: cfg80211: clean up signal type

It wasn't a good idea to make the signal type a per-BSS option,
although then it is closer to the actual value. Move it to be
a per-wiphy setting, update mac80211 to match.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h |  8 +++-----
 include/net/wireless.h |  3 +++
 net/mac80211/main.c    |  5 +++++
 net/mac80211/scan.c    | 11 +++--------
 net/wireless/nl80211.c |  2 +-
 net/wireless/scan.c    | 21 +++++++++------------
 6 files changed, 24 insertions(+), 26 deletions(-)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8dcc46444037..e0312746a8cc 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -577,8 +577,7 @@ enum cfg80211_signal_type {
  * @information_elements: the information elements (Note that there
  *	is no guarantee that these are well-formed!)
  * @len_information_elements: total length of the information elements
- * @signal: signal strength value
- * @signal_type: signal type
+ * @signal: signal strength value (type depends on the wiphy's signal_type)
  * @free_priv: function pointer to free private data
  * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
  */
@@ -593,7 +592,6 @@ struct cfg80211_bss {
 	size_t len_information_elements;
 
 	s32 signal;
-	enum cfg80211_signal_type signal_type;
 
 	void (*free_priv)(struct cfg80211_bss *bss);
 	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
@@ -782,6 +780,7 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);
  *
  * @wiphy: the wiphy reporting the BSS
  * @bss: the found BSS
+ * @signal: the signal strength, type depends on the wiphy's signal_type
  * @gfp: context flags
  *
  * This informs cfg80211 that BSS information was found and
@@ -791,8 +790,7 @@ struct cfg80211_bss*
 cfg80211_inform_bss_frame(struct wiphy *wiphy,
 			  struct ieee80211_channel *channel,
 			  struct ieee80211_mgmt *mgmt, size_t len,
-			  s32 signal, enum cfg80211_signal_type sigtype,
-			  gfp_t gfp);
+			  s32 signal, gfp_t gfp);
 
 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 				      struct ieee80211_channel *channel,
diff --git a/include/net/wireless.h b/include/net/wireless.h
index 1c6285eb1666..d815aa8b4534 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -200,6 +200,7 @@ struct ieee80211_supported_band {
  * 	the regulatory_hint() API. This can be used by the driver
  *	on the reg_notifier() if it chooses to ignore future
  *	regulatory domain changes caused by other drivers.
+ * @signal_type: signal type reported in &struct cfg80211_bss.
  */
 struct wiphy {
 	/* assign these fields before you register the wiphy */
@@ -213,6 +214,8 @@ struct wiphy {
 	bool custom_regulatory;
 	bool strict_regulatory;
 
+	enum cfg80211_signal_type signal_type;
+
 	int bss_priv_size;
 	u8 max_scan_ssids;
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index fce9d08986e9..f38db4d37e5d 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -861,6 +861,11 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	/* mac80211 always supports monitor */
 	local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
 
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+		local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+	else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
+		local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
+
 	result = wiphy_register(local->hw.wiphy);
 	if (result < 0)
 		goto fail_wiphy_register;
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index c063f8204263..23f4de274744 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -63,20 +63,15 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
 {
 	struct ieee80211_bss *bss;
 	int clen;
-	enum cfg80211_signal_type sigtype = CFG80211_SIGNAL_TYPE_NONE;
 	s32 signal = 0;
 
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
-		sigtype = CFG80211_SIGNAL_TYPE_MBM;
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
 		signal = rx_status->signal * 100;
-	} else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
-		sigtype = CFG80211_SIGNAL_TYPE_UNSPEC;
+	else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
 		signal = (rx_status->signal * 100) / local->hw.max_signal;
-	}
 
 	bss = (void *)cfg80211_inform_bss_frame(local->hw.wiphy, channel,
-						mgmt, len, signal, sigtype,
-						GFP_ATOMIC);
+						mgmt, len, signal, GFP_ATOMIC);
 
 	if (!bss)
 		return NULL;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 245fddcc77c3..a7e751edc739 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2457,7 +2457,7 @@ static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
 	NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
 
-	switch (res->signal_type) {
+	switch (rdev->wiphy.signal_type) {
 	case CFG80211_SIGNAL_TYPE_MBM:
 		NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
 		break;
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 01c136d98c5b..60600657b657 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -370,7 +370,6 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 		found->pub.beacon_interval = res->pub.beacon_interval;
 		found->pub.tsf = res->pub.tsf;
 		found->pub.signal = res->pub.signal;
-		found->pub.signal_type = res->pub.signal_type;
 		found->pub.capability = res->pub.capability;
 		found->ts = res->ts;
 		kref_put(&res->ref, bss_release);
@@ -392,8 +391,7 @@ struct cfg80211_bss *
 cfg80211_inform_bss_frame(struct wiphy *wiphy,
 			  struct ieee80211_channel *channel,
 			  struct ieee80211_mgmt *mgmt, size_t len,
-			  s32 signal, enum cfg80211_signal_type sigtype,
-			  gfp_t gfp)
+			  s32 signal, gfp_t gfp)
 {
 	struct cfg80211_internal_bss *res;
 	size_t ielen = len - offsetof(struct ieee80211_mgmt,
@@ -401,7 +399,7 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 	bool overwrite;
 	size_t privsz = wiphy->bss_priv_size;
 
-	if (WARN_ON(sigtype == NL80211_BSS_SIGNAL_UNSPEC &&
+	if (WARN_ON(wiphy->signal_type == NL80211_BSS_SIGNAL_UNSPEC &&
 	            (signal < 0 || signal > 100)))
 		return NULL;
 
@@ -415,7 +413,6 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 
 	memcpy(res->pub.bssid, mgmt->bssid, ETH_ALEN);
 	res->pub.channel = channel;
-	res->pub.signal_type = sigtype;
 	res->pub.signal = signal;
 	res->pub.tsf = le64_to_cpu(mgmt->u.probe_resp.timestamp);
 	res->pub.beacon_interval = le16_to_cpu(mgmt->u.probe_resp.beacon_int);
@@ -607,9 +604,9 @@ static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
 }
 
 static char *
-ieee80211_bss(struct iw_request_info *info,
-		      struct cfg80211_internal_bss *bss,
-		      char *current_ev, char *end_buf)
+ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
+	      struct cfg80211_internal_bss *bss, char *current_ev,
+	      char *end_buf)
 {
 	struct iw_event iwe;
 	u8 *buf, *cfg, *p;
@@ -638,13 +635,13 @@ ieee80211_bss(struct iw_request_info *info,
 	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
 					  IW_EV_FREQ_LEN);
 
-	if (bss->pub.signal_type != CFG80211_SIGNAL_TYPE_NONE) {
+	if (wiphy->signal_type != CFG80211_SIGNAL_TYPE_NONE) {
 		memset(&iwe, 0, sizeof(iwe));
 		iwe.cmd = IWEVQUAL;
 		iwe.u.qual.updated = IW_QUAL_LEVEL_UPDATED |
 				     IW_QUAL_NOISE_INVALID |
 				     IW_QUAL_QUAL_UPDATED;
-		switch (bss->pub.signal_type) {
+		switch (wiphy->signal_type) {
 		case CFG80211_SIGNAL_TYPE_MBM:
 			sig = bss->pub.signal / 100;
 			iwe.u.qual.level = sig;
@@ -823,8 +820,8 @@ static int ieee80211_scan_results(struct cfg80211_registered_device *dev,
 			spin_unlock_bh(&dev->bss_lock);
 			return -E2BIG;
 		}
-		current_ev = ieee80211_bss(info, bss,
-						   current_ev, end_buf);
+		current_ev = ieee80211_bss(&dev->wiphy, info, bss,
+					   current_ev, end_buf);
 	}
 	spin_unlock_bh(&dev->bss_lock);
 	return current_ev - buf;
-- 
cgit v1.2.3


From 4aa188e1a868d25c5b93e48e5d29bbd0f9d3bc3a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 18 Feb 2009 19:32:08 +0100
Subject: mac80211/cfg80211: move iwrange handler to cfg80211

The previous patch made cfg80211 generally aware of the signal
type a given hardware will give, so now it can implement
SIOCGIWRANGE itself, removing more wext stuff from mac80211.
Might need to be a little more parametrized once we have
more hardware using cfg80211 and new hardware capabilities.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h     |   3 +
 net/mac80211/wext.c        | 135 ++++++---------------------------------------
 net/wireless/wext-compat.c |  97 ++++++++++++++++++++++++++++++++
 3 files changed, 116 insertions(+), 119 deletions(-)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index e0312746a8cc..43ac90df4164 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -765,6 +765,9 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 int cfg80211_wext_giwscan(struct net_device *dev,
 			  struct iw_request_info *info,
 			  struct iw_point *data, char *extra);
+int cfg80211_wext_giwrange(struct net_device *dev,
+			   struct iw_request_info *info,
+			   struct iw_point *data, char *extra);
 
 /**
  * cfg80211_scan_done - notify that scan finished
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index a8d4b6171916..f6924fc065d3 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -144,124 +144,6 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 	return -EOPNOTSUPP;
 }
 
-static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local)
-{
-	u8 wstats_flags = 0;
-
-	wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
-					   IEEE80211_HW_SIGNAL_DBM) ?
-				IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
-	wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
-				IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
-		wstats_flags |= IW_QUAL_DBM;
-
-	return wstats_flags;
-}
-
-static int ieee80211_ioctl_giwrange(struct net_device *dev,
-				 struct iw_request_info *info,
-				 struct iw_point *data, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct iw_range *range = (struct iw_range *) extra;
-	enum ieee80211_band band;
-	int c = 0;
-
-	data->length = sizeof(struct iw_range);
-	memset(range, 0, sizeof(struct iw_range));
-
-	range->we_version_compiled = WIRELESS_EXT;
-	range->we_version_source = 21;
-	range->retry_capa = IW_RETRY_LIMIT;
-	range->retry_flags = IW_RETRY_LIMIT;
-	range->min_retry = 0;
-	range->max_retry = 255;
-	range->min_rts = 0;
-	range->max_rts = 2347;
-	range->min_frag = 256;
-	range->max_frag = 2346;
-
-	range->encoding_size[0] = 5;
-	range->encoding_size[1] = 13;
-	range->num_encoding_sizes = 2;
-	range->max_encoding_tokens = NUM_DEFAULT_KEYS;
-
-	/* cfg80211 requires this, and enforces 0..100 */
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
-		range->max_qual.level = 100;
-	else if  (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
-		range->max_qual.level = -110;
-	else
-		range->max_qual.level = 0;
-
-	if (local->hw.flags & IEEE80211_HW_NOISE_DBM)
-		range->max_qual.noise = -110;
-	else
-		range->max_qual.noise = 0;
-
-	range->max_qual.updated = ieee80211_get_wstats_flags(local);
-
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
-		/*
-		 * cfg80211 assumes -110 to -40 dBm and clamps to that range
-		 * for qual.qual, so tell userspace this is what we give it
-		 * but take into account that we have to start from 0.
-		 */
-		range->max_qual.qual = 70;
-		range->avg_qual.qual = 35;
-	} else {
-		/*
-		 * cfg80211 just uses the level value for qual too, and it
-		 * requires the level value to be 0 .. 100.
-		 */
-		range->max_qual.qual = 100;
-		range->avg_qual.qual = 50;
-	}
-	/* not always true but better than nothing */
-	range->avg_qual.level = range->max_qual.level / 2;
-	range->avg_qual.noise = range->max_qual.noise / 2;
-	range->avg_qual.updated = ieee80211_get_wstats_flags(local);
-
-	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
-			  IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
-
-
-	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
-		int i;
-		struct ieee80211_supported_band *sband;
-
-		sband = local->hw.wiphy->bands[band];
-
-		if (!sband)
-			continue;
-
-		for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
-			struct ieee80211_channel *chan = &sband->channels[i];
-
-			if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
-				range->freq[c].i =
-					ieee80211_frequency_to_channel(
-						chan->center_freq);
-				range->freq[c].m = chan->center_freq;
-				range->freq[c].e = 6;
-				c++;
-			}
-		}
-	}
-	range->num_channels = c;
-	range->num_frequency = c;
-
-	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
-	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
-	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
-
-	range->scan_capa |= IW_SCAN_CAPA_ESSID;
-
-	return 0;
-}
-
-
 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 				   struct iw_request_info *info,
 				   struct iw_freq *freq, char *extra)
@@ -1004,6 +886,21 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 	return ret;
 }
 
+static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local)
+{
+	u8 wstats_flags = 0;
+
+	wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
+					   IEEE80211_HW_SIGNAL_DBM) ?
+				IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
+	wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
+				IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+		wstats_flags |= IW_QUAL_DBM;
+
+	return wstats_flags;
+}
+
 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
 {
@@ -1149,7 +1046,7 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) NULL,				/* SIOCSIWSENS */
 	(iw_handler) NULL,				/* SIOCGIWSENS */
 	(iw_handler) NULL /* not used */,		/* SIOCSIWRANGE */
-	(iw_handler) ieee80211_ioctl_giwrange,		/* SIOCGIWRANGE */
+	(iw_handler) cfg80211_wext_giwrange,		/* SIOCGIWRANGE */
 	(iw_handler) NULL /* not used */,		/* SIOCSIWPRIV */
 	(iw_handler) NULL /* kernel code */,		/* SIOCGIWPRIV */
 	(iw_handler) NULL /* not used */,		/* SIOCSIWSTATS */
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 58e489fd4aed..b84a9b4fe96a 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -137,3 +137,100 @@ int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 	return 0;
 }
 EXPORT_SYMBOL(cfg80211_wext_giwmode);
+
+
+int cfg80211_wext_giwrange(struct net_device *dev,
+			   struct iw_request_info *info,
+			   struct iw_point *data, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct iw_range *range = (struct iw_range *) extra;
+	enum ieee80211_band band;
+	int c = 0;
+
+	if (!wdev)
+		return -EOPNOTSUPP;
+
+	data->length = sizeof(struct iw_range);
+	memset(range, 0, sizeof(struct iw_range));
+
+	range->we_version_compiled = WIRELESS_EXT;
+	range->we_version_source = 21;
+	range->retry_capa = IW_RETRY_LIMIT;
+	range->retry_flags = IW_RETRY_LIMIT;
+	range->min_retry = 0;
+	range->max_retry = 255;
+	range->min_rts = 0;
+	range->max_rts = 2347;
+	range->min_frag = 256;
+	range->max_frag = 2346;
+
+	range->encoding_size[0] = 5;
+	range->encoding_size[1] = 13;
+	range->num_encoding_sizes = 2;
+	range->max_encoding_tokens = 4;
+
+	range->max_qual.updated = IW_QUAL_NOISE_INVALID;
+
+	switch (wdev->wiphy->signal_type) {
+	case CFG80211_SIGNAL_TYPE_NONE:
+		break;
+	case CFG80211_SIGNAL_TYPE_MBM:
+		range->max_qual.level = -110;
+		range->max_qual.qual = 70;
+		range->avg_qual.qual = 35;
+		range->max_qual.updated |= IW_QUAL_DBM;
+		range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
+		range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
+		break;
+	case CFG80211_SIGNAL_TYPE_UNSPEC:
+		range->max_qual.level = 100;
+		range->max_qual.qual = 100;
+		range->avg_qual.qual = 50;
+		range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
+		range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
+		break;
+	}
+
+	range->avg_qual.level = range->max_qual.level / 2;
+	range->avg_qual.noise = range->max_qual.noise / 2;
+	range->avg_qual.updated = range->max_qual.updated;
+
+	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
+			  IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
+
+
+	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
+		int i;
+		struct ieee80211_supported_band *sband;
+
+		sband = wdev->wiphy->bands[band];
+
+		if (!sband)
+			continue;
+
+		for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
+			struct ieee80211_channel *chan = &sband->channels[i];
+
+			if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
+				range->freq[c].i =
+					ieee80211_frequency_to_channel(
+						chan->center_freq);
+				range->freq[c].m = chan->center_freq;
+				range->freq[c].e = 6;
+				c++;
+			}
+		}
+	}
+	range->num_channels = c;
+	range->num_frequency = c;
+
+	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
+	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
+	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
+
+	range->scan_capa |= IW_SCAN_CAPA_ESSID;
+
+	return 0;
+}
+EXPORT_SYMBOL(cfg80211_wext_giwrange);
-- 
cgit v1.2.3


From 80e775bf08f1915870fbb0c1c7a45a3fdc291721 Mon Sep 17 00:00:00 2001
From: Michael Buesch <mb@bu3sch.de>
Date: Fri, 20 Feb 2009 15:37:03 +0100
Subject: mac80211: Add software scan notifiers

This adds optional notifier functions for software scan.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 8 ++++++++
 net/mac80211/scan.c    | 5 +++++
 2 files changed, 13 insertions(+)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e01c63aad66c..12a52efcd0d1 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1324,6 +1324,12 @@ enum ieee80211_ampdu_mlme_action {
  *	because the hardware is turned off! Anything else is a bug!
  *	Returns a negative error code which will be seen in userspace.
  *
+ * @sw_scan_start: Notifier function that is called just before a software scan
+ *	is started. Can be NULL, if the driver doesn't need this notification.
+ *
+ * @sw_scan_complete: Notifier function that is called just after a software scan
+ *	finished. Can be NULL, if the driver doesn't need this notification.
+ *
  * @get_stats: Return low-level statistics.
  * 	Returns zero if statistics are available.
  *
@@ -1403,6 +1409,8 @@ struct ieee80211_ops {
 			u32 iv32, u16 *phase1key);
 	int (*hw_scan)(struct ieee80211_hw *hw,
 		       struct cfg80211_scan_request *req);
+	void (*sw_scan_start)(struct ieee80211_hw *hw);
+	void (*sw_scan_complete)(struct ieee80211_hw *hw);
 	int (*get_stats)(struct ieee80211_hw *hw,
 			 struct ieee80211_low_level_stats *stats);
 	void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 23f4de274744..0e81e1633a66 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -245,6 +245,9 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 	netif_addr_unlock(local->mdev);
 	netif_tx_unlock_bh(local->mdev);
 
+	if (local->ops->sw_scan_complete)
+		local->ops->sw_scan_complete(local_to_hw(local));
+
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		if (!netif_running(sdata->dev))
@@ -395,6 +398,8 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 	}
 
 	local->sw_scanning = true;
+	if (local->ops->sw_scan_start)
+		local->ops->sw_scan_start(local_to_hw(local));
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
-- 
cgit v1.2.3


From 806a9e39670be4f1f861c346ec102a79e81b90c3 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Sat, 21 Feb 2009 00:04:26 -0500
Subject: cfg80211: make regulatory_request use wiphy_idx instead of wiphy

We do this so later on we can move the pending requests onto a
workqueue. By using the wiphy_idx instead of the wiphy we can
later easily check if the wiphy has disappeared or not.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h |  6 ++---
 net/wireless/core.c    | 30 ++++++++++++++++++++---
 net/wireless/core.h    | 12 ++++++++++
 net/wireless/reg.c     | 64 +++++++++++++++++++++++++++++++-------------------
 4 files changed, 82 insertions(+), 30 deletions(-)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 43ac90df4164..bb9129fc61ca 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -383,9 +383,9 @@ enum environment_cap {
 };
 
 /**
- * struct regulatory_request - receipt of last regulatory request
+ * struct regulatory_request - used to keep track of regulatory requests
  *
- * @wiphy: this is set if this request's initiator is
+ * @wiphy_idx: this is set if this request's initiator is
  * 	%REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
  * 	can be used by the wireless core to deal with conflicts
  * 	and potentially inform users of which devices specifically
@@ -406,7 +406,7 @@ enum environment_cap {
  * 	indoor, or if it doesn't matter
  */
 struct regulatory_request {
-	struct wiphy *wiphy;
+	int wiphy_idx;
 	enum reg_set_by initiator;
 	char alpha2[2];
 	bool intersect;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index e347093ccc73..b1a354b7fc06 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -40,9 +40,8 @@ DEFINE_MUTEX(cfg80211_mutex);
 /* for debugfs */
 static struct dentry *ieee80211_debugfs_dir;
 
-/* requires cfg80211_drv_mutex to be held! */
-static struct cfg80211_registered_device *
-cfg80211_drv_by_wiphy_idx(int wiphy_idx)
+/* requires cfg80211_mutex to be held! */
+struct cfg80211_registered_device *cfg80211_drv_by_wiphy_idx(int wiphy_idx)
 {
 	struct cfg80211_registered_device *result = NULL, *drv;
 
@@ -61,6 +60,31 @@ cfg80211_drv_by_wiphy_idx(int wiphy_idx)
 	return result;
 }
 
+int get_wiphy_idx(struct wiphy *wiphy)
+{
+	struct cfg80211_registered_device *drv;
+	if (!wiphy)
+		return WIPHY_IDX_STALE;
+	drv = wiphy_to_dev(wiphy);
+	return drv->wiphy_idx;
+}
+
+/* requires cfg80211_drv_mutex to be held! */
+struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
+{
+	struct cfg80211_registered_device *drv;
+
+	if (!wiphy_idx_valid(wiphy_idx))
+		return NULL;
+
+	assert_cfg80211_lock();
+
+	drv = cfg80211_drv_by_wiphy_idx(wiphy_idx);
+	if (!drv)
+		return NULL;
+	return &drv->wiphy;
+}
+
 /* requires cfg80211_mutex to be held! */
 static struct cfg80211_registered_device *
 __cfg80211_drv_from_info(struct genl_info *info)
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 982cc6be3484..cd8e6e3ef116 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -79,6 +79,12 @@ static inline void assert_cfg80211_lock(void)
 	BUG_ON(!mutex_is_locked(&cfg80211_mutex));
 }
 
+/*
+ * You can use this to mark a wiphy_idx as not having an associated wiphy.
+ * It guarantees cfg80211_drv_by_wiphy_idx(wiphy_idx) will return NULL
+ */
+#define WIPHY_IDX_STALE -1
+
 struct cfg80211_internal_bss {
 	struct list_head list;
 	struct rb_node rbn;
@@ -88,6 +94,9 @@ struct cfg80211_internal_bss {
 	struct cfg80211_bss pub;
 };
 
+struct cfg80211_registered_device *cfg80211_drv_by_wiphy_idx(int wiphy_idx);
+int get_wiphy_idx(struct wiphy *wiphy);
+
 /*
  * This function returns a pointer to the driver
  * that the genl_info item that is passed refers to.
@@ -111,6 +120,9 @@ struct cfg80211_internal_bss {
 extern struct cfg80211_registered_device *
 cfg80211_get_dev_from_info(struct genl_info *info);
 
+/* requires cfg80211_drv_mutex to be held! */
+struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
+
 /* identical to cfg80211_get_dev_from_info but only operate on ifindex */
 extern struct cfg80211_registered_device *
 cfg80211_get_dev_from_ifindex(int ifindex);
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index e49ac9b2adac..d44f3b5481ad 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -831,9 +831,12 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 	const struct ieee80211_power_rule *power_rule = NULL;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *chan;
+	struct wiphy *request_wiphy;
 
 	assert_cfg80211_lock();
 
+	request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
 	sband = wiphy->bands[band];
 	BUG_ON(chan_idx >= sband->n_channels);
 	chan = &sband->channels[chan_idx];
@@ -881,8 +884,8 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 	power_rule = &reg_rule->power_rule;
 
 	if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
-	    last_request->wiphy && last_request->wiphy == wiphy &&
-	    last_request->wiphy->strict_regulatory) {
+	    request_wiphy && request_wiphy == wiphy &&
+	    request_wiphy->strict_regulatory) {
 		/* This gaurantees the driver's requested regulatory domain
 		 * will always be used as a base for further regulatory
 		 * settings */
@@ -1046,6 +1049,7 @@ static int reg_copy_regd(const struct ieee80211_regdomain **dst_regd,
 static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
 			  const char *alpha2)
 {
+	struct wiphy *last_wiphy = NULL;
 
 	assert_cfg80211_lock();
 
@@ -1059,10 +1063,13 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
 	case REGDOM_SET_BY_CORE:
 		return -EINVAL;
 	case REGDOM_SET_BY_COUNTRY_IE:
+
+		last_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
 		if (unlikely(!is_an_alpha2(alpha2)))
 			return -EINVAL;
 		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
-			if (last_request->wiphy != wiphy) {
+			if (last_wiphy != wiphy) {
 				/*
 				 * Two cards with two APs claiming different
 				 * different Country IE alpha2s. We could
@@ -1163,7 +1170,7 @@ new_request:
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
 	request->initiator = set_by;
-	request->wiphy = wiphy;
+	request->wiphy_idx = get_wiphy_idx(wiphy);
 	request->intersect = intersect;
 	request->country_ie_checksum = country_ie_checksum;
 	request->country_ie_env = env;
@@ -1226,11 +1233,16 @@ EXPORT_SYMBOL(regulatory_hint);
 static bool reg_same_country_ie_hint(struct wiphy *wiphy,
 			u32 country_ie_checksum)
 {
+	struct wiphy *request_wiphy;
+
 	assert_cfg80211_lock();
 
-	if (!last_request->wiphy)
+	request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
+	if (!request_wiphy)
 		return false;
-	if (likely(last_request->wiphy != wiphy))
+
+	if (likely(request_wiphy != wiphy))
 		return !country_ie_integrity_changes(country_ie_checksum);
 	/* We should not have let these through at this point, they
 	 * should have been picked up earlier by the first alpha2 check
@@ -1278,14 +1290,15 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	/* We will run this for *every* beacon processed for the BSSID, so
 	 * we optimize an early check to exit out early if we don't have to
 	 * do anything */
-	if (likely(last_request->wiphy)) {
+	if (likely(wiphy_idx_valid(last_request->wiphy_idx))) {
 		struct cfg80211_registered_device *drv_last_ie;
 
-		drv_last_ie = wiphy_to_dev(last_request->wiphy);
+		drv_last_ie =
+			cfg80211_drv_by_wiphy_idx(last_request->wiphy_idx);
 
 		/* Lets keep this simple -- we trust the first AP
 		 * after we intersect with CRDA */
-		if (likely(last_request->wiphy == wiphy)) {
+		if (likely(&drv_last_ie->wiphy == wiphy)) {
 			/* Ignore IEs coming in on this wiphy with
 			 * the same alpha2 and environment cap */
 			if (likely(alpha2_equal(drv_last_ie->country_ie_alpha2,
@@ -1377,13 +1390,12 @@ static void print_regdomain(const struct ieee80211_regdomain *rd)
 {
 
 	if (is_intersected_alpha2(rd->alpha2)) {
-		struct wiphy *wiphy = NULL;
-		struct cfg80211_registered_device *drv;
 
 		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
-			if (last_request->wiphy) {
-				wiphy = last_request->wiphy;
-				drv = wiphy_to_dev(wiphy);
+			struct cfg80211_registered_device *drv;
+			drv = cfg80211_drv_by_wiphy_idx(
+				last_request->wiphy_idx);
+			if (drv) {
 				printk(KERN_INFO "cfg80211: Current regulatory "
 					"domain updated by AP to: %c%c\n",
 					drv->country_ie_alpha2[0],
@@ -1449,7 +1461,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 {
 	const struct ieee80211_regdomain *intersected_rd = NULL;
 	struct cfg80211_registered_device *drv = NULL;
-	struct wiphy *wiphy = NULL;
+	struct wiphy *request_wiphy;
 	/* Some basic sanity checks first */
 
 	if (is_world_regdom(rd->alpha2)) {
@@ -1477,8 +1489,6 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 			return -EINVAL;
 	}
 
-	wiphy = last_request->wiphy;
-
 	/* Now lets set the regulatory domain, update all driver channels
 	 * and finally inform them of what we have done, in case they want
 	 * to review or adjust their own settings based on their own
@@ -1494,6 +1504,8 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		return -EINVAL;
 	}
 
+	request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
 	if (!last_request->intersect) {
 		int r;
 
@@ -1506,9 +1518,9 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		/* For a driver hint, lets copy the regulatory domain the
 		 * driver wanted to the wiphy to deal with conflicts */
 
-		BUG_ON(last_request->wiphy->regd);
+		BUG_ON(request_wiphy->regd);
 
-		r = reg_copy_regd(&last_request->wiphy->regd, rd);
+		r = reg_copy_regd(&request_wiphy->regd, rd);
 		if (r)
 			return r;
 
@@ -1529,7 +1541,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		 * However if a driver requested this specific regulatory
 		 * domain we keep it for its private use */
 		if (last_request->initiator == REGDOM_SET_BY_DRIVER)
-			last_request->wiphy->regd = rd;
+			request_wiphy->regd = rd;
 		else
 			kfree(rd);
 
@@ -1569,7 +1581,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	if (!intersected_rd)
 		return -EINVAL;
 
-	drv = wiphy_to_dev(wiphy);
+	drv = wiphy_to_dev(request_wiphy);
 
 	drv->country_ie_alpha2[0] = rd->alpha2[0];
 	drv->country_ie_alpha2[1] = rd->alpha2[1];
@@ -1618,14 +1630,18 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 /* Caller must hold cfg80211_mutex */
 void reg_device_remove(struct wiphy *wiphy)
 {
+	struct wiphy *request_wiphy;
+
 	assert_cfg80211_lock();
 
+	request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
 	kfree(wiphy->regd);
-	if (!last_request || !last_request->wiphy)
+	if (!last_request || !request_wiphy)
 		return;
-	if (last_request->wiphy != wiphy)
+	if (request_wiphy != wiphy)
 		return;
-	last_request->wiphy = NULL;
+	last_request->wiphy_idx = WIPHY_IDX_STALE;
 	last_request->country_ie_env = ENVIRON_ANY;
 }
 
-- 
cgit v1.2.3


From fe33eb390854886e1fd5d4835d833b80d145aafb Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Sat, 21 Feb 2009 00:04:30 -0500
Subject: cfg80211: move all regulatory hints to workqueue

All regulatory hints (core, driver, userspace and 11d) are now processed in
a workqueue.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c      |   8 +-
 drivers/net/wireless/zd1211rw/zd_mac.c |   6 +-
 include/net/cfg80211.h                 |   2 +
 include/net/wireless.h                 |   9 +-
 net/wireless/nl80211.c                 |  30 ++----
 net/wireless/reg.c                     | 178 ++++++++++++++++++++++++++++++---
 net/wireless/reg.h                     |   2 +
 7 files changed, 194 insertions(+), 41 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index b47cbe9e7a5a..1e3824215ac9 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1656,8 +1656,12 @@ int ath_attach(u16 devid, struct ath_softc *sc)
 
 	error = ieee80211_register_hw(hw);
 
-	if (!ath9k_is_world_regd(sc->sc_ah))
-		regulatory_hint(hw->wiphy, sc->sc_ah->regulatory.alpha2);
+	if (!ath9k_is_world_regd(sc->sc_ah)) {
+		error = regulatory_hint(hw->wiphy,
+			sc->sc_ah->regulatory.alpha2);
+		if (error)
+			goto error_attach;
+	}
 
 	/* Initialize LED control */
 	ath_init_leds(sc);
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 7579af27edbd..da9214e33a5f 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -170,10 +170,10 @@ int zd_mac_init_hw(struct ieee80211_hw *hw)
 		goto disable_int;
 
 	r = zd_reg2alpha2(mac->regdomain, alpha2);
-	if (!r)
-		regulatory_hint(hw->wiphy, alpha2);
+	if (r)
+		goto disable_int;
 
-	r = 0;
+	r = regulatory_hint(hw->wiphy, alpha2);
 disable_int:
 	zd_chip_disable_int(chip);
 out:
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index bb9129fc61ca..75fa556728ce 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -404,6 +404,7 @@ enum environment_cap {
  * 	country IE
  * @country_ie_env: lets us know if the AP is telling us we are outdoor,
  * 	indoor, or if it doesn't matter
+ * @list: used to insert into the reg_requests_list linked list
  */
 struct regulatory_request {
 	int wiphy_idx;
@@ -412,6 +413,7 @@ struct regulatory_request {
 	bool intersect;
 	u32 country_ie_checksum;
 	enum environment_cap country_ie_env;
+	struct list_head list;
 };
 
 struct ieee80211_freq_range {
diff --git a/include/net/wireless.h b/include/net/wireless.h
index d815aa8b4534..1f4707d18adb 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -401,8 +401,15 @@ ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
  * domain should be in or by providing a completely build regulatory domain.
  * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
  * for a regulatory domain structure for the respective country.
+ *
+ * The wiphy must have been registered to cfg80211 prior to this call.
+ * For cfg80211 drivers this means you must first use wiphy_register(),
+ * for mac80211 drivers you must first use ieee80211_register_hw().
+ *
+ * Drivers should check the return value, its possible you can get
+ * an -ENOMEM.
  */
-extern void regulatory_hint(struct wiphy *wiphy, const char *alpha2);
+extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
 
 /**
  * regulatory_hint_11d - hints a country IE as a regulatory domain
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e0d3879b8852..97f69bed3fe2 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1915,34 +1915,24 @@ static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
 	 */
 	mutex_lock(&cfg80211_mutex);
 	if (unlikely(!cfg80211_regdomain)) {
-		r = -EINPROGRESS;
-		goto out;
+		mutex_unlock(&cfg80211_mutex);
+		return -EINPROGRESS;
 	}
+	mutex_unlock(&cfg80211_mutex);
 
-	if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) {
-		r = -EINVAL;
-		goto out;
-	}
+	if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
+		return -EINVAL;
 
 	data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
 
 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
 	/* We ignore world regdom requests with the old regdom setup */
-	if (is_world_regdom(data)) {
-		r = -EINVAL;
-		goto out;
-	}
+	if (is_world_regdom(data))
+		return -EINVAL;
 #endif
-	r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, 0, ENVIRON_ANY);
-	/*
-	 * This means the regulatory domain was already set, however
-	 * we don't want to confuse userspace with a "successful error"
-	 * message so lets just treat it as a success
-	 */
-	if (r == -EALREADY)
-		r = 0;
-out:
-	mutex_unlock(&cfg80211_mutex);
+
+	r = regulatory_hint_user(data);
+
 	return r;
 }
 
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index af762be3f0a1..0b8c4b86789a 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -64,6 +64,9 @@ const struct ieee80211_regdomain *cfg80211_regdomain;
  * what it thinks should apply for the same country */
 static const struct ieee80211_regdomain *country_ie_regdomain;
 
+static LIST_HEAD(reg_requests_list);
+static spinlock_t reg_requests_lock;
+
 /* We keep a static world regulatory domain in case of the absence of CRDA */
 static const struct ieee80211_regdomain world_regdom = {
 	.n_reg_rules = 1,
@@ -831,7 +834,7 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 	const struct ieee80211_power_rule *power_rule = NULL;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *chan;
-	struct wiphy *request_wiphy;
+	struct wiphy *request_wiphy = NULL;
 
 	assert_cfg80211_lock();
 
@@ -1195,6 +1198,89 @@ new_request:
 	return call_crda(alpha2);
 }
 
+/* This currently only processes user and driver regulatory hints */
+static int reg_process_hint(struct regulatory_request *reg_request)
+{
+	int r = 0;
+	struct wiphy *wiphy = NULL;
+
+	BUG_ON(!reg_request->alpha2);
+
+	mutex_lock(&cfg80211_mutex);
+
+	if (wiphy_idx_valid(reg_request->wiphy_idx))
+		wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
+
+	if (reg_request->initiator == REGDOM_SET_BY_DRIVER &&
+	    !wiphy) {
+		r = -ENODEV;
+		goto out;
+	}
+
+	r = __regulatory_hint(wiphy,
+			      reg_request->initiator,
+			      reg_request->alpha2,
+			      reg_request->country_ie_checksum,
+			      reg_request->country_ie_env);
+	/* This is required so that the orig_* parameters are saved */
+	if (r == -EALREADY && wiphy && wiphy->strict_regulatory)
+		wiphy_update_regulatory(wiphy, reg_request->initiator);
+out:
+	mutex_unlock(&cfg80211_mutex);
+
+	if (r == -EALREADY)
+		r = 0;
+
+	return r;
+}
+
+static void reg_process_pending_hints(void)
+	{
+	struct regulatory_request *reg_request;
+	int r;
+
+	spin_lock(&reg_requests_lock);
+	while (!list_empty(&reg_requests_list)) {
+		reg_request = list_first_entry(&reg_requests_list,
+					       struct regulatory_request,
+					       list);
+		list_del_init(&reg_request->list);
+		spin_unlock(&reg_requests_lock);
+
+		r = reg_process_hint(reg_request);
+#ifdef CONFIG_CFG80211_REG_DEBUG
+		if (r && (reg_request->initiator == REGDOM_SET_BY_DRIVER ||
+		    reg_request->initiator == REGDOM_SET_BY_COUNTRY_IE))
+			printk(KERN_ERR "cfg80211: wiphy_idx %d sent a "
+				"regulatory hint for %c%c but now has "
+				"gone fishing, ignoring request\n",
+				reg_request->wiphy_idx,
+				reg_request->alpha2[0],
+				reg_request->alpha2[1]);
+#endif
+		kfree(reg_request);
+		spin_lock(&reg_requests_lock);
+	}
+	spin_unlock(&reg_requests_lock);
+}
+
+static void reg_todo(struct work_struct *work)
+{
+	reg_process_pending_hints();
+}
+
+static DECLARE_WORK(reg_work, reg_todo);
+
+static void queue_regulatory_request(struct regulatory_request *request)
+{
+	spin_lock(&reg_requests_lock);
+	list_add_tail(&request->list, &reg_requests_list);
+	spin_unlock(&reg_requests_lock);
+
+	schedule_work(&reg_work);
+}
+
+/* Core regulatory hint -- happens once during cfg80211_init() */
 static int regulatory_hint_core(const char *alpha2)
 {
 	struct regulatory_request *request;
@@ -1210,23 +1296,56 @@ static int regulatory_hint_core(const char *alpha2)
 	request->alpha2[1] = alpha2[1];
 	request->initiator = REGDOM_SET_BY_CORE;
 
-	last_request = request;
+	queue_regulatory_request(request);
 
-	return call_crda(alpha2);
+	return 0;
 }
 
-void regulatory_hint(struct wiphy *wiphy, const char *alpha2)
+/* User hints */
+int regulatory_hint_user(const char *alpha2)
 {
-	int r;
+	struct regulatory_request *request;
+
 	BUG_ON(!alpha2);
 
-	mutex_lock(&cfg80211_mutex);
-	r = __regulatory_hint(wiphy, REGDOM_SET_BY_DRIVER,
-		alpha2, 0, ENVIRON_ANY);
-	/* This is required so that the orig_* parameters are saved */
-	if (r == -EALREADY && wiphy->strict_regulatory)
-		wiphy_update_regulatory(wiphy, REGDOM_SET_BY_DRIVER);
-	mutex_unlock(&cfg80211_mutex);
+	request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	request->wiphy_idx = WIPHY_IDX_STALE;
+	request->alpha2[0] = alpha2[0];
+	request->alpha2[1] = alpha2[1];
+	request->initiator = REGDOM_SET_BY_USER,
+
+	queue_regulatory_request(request);
+
+	return 0;
+}
+
+/* Driver hints */
+int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
+{
+	struct regulatory_request *request;
+
+	BUG_ON(!alpha2);
+	BUG_ON(!wiphy);
+
+	request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	request->wiphy_idx = get_wiphy_idx(wiphy);
+
+	/* Must have registered wiphy first */
+	BUG_ON(!wiphy_idx_valid(request->wiphy_idx));
+
+	request->alpha2[0] = alpha2[0];
+	request->alpha2[1] = alpha2[1];
+	request->initiator = REGDOM_SET_BY_DRIVER;
+
+	queue_regulatory_request(request);
+
+	return 0;
 }
 EXPORT_SYMBOL(regulatory_hint);
 
@@ -1260,6 +1379,7 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	char alpha2[2];
 	u32 checksum = 0;
 	enum environment_cap env = ENVIRON_ANY;
+	struct regulatory_request *request;
 
 	mutex_lock(&cfg80211_mutex);
 
@@ -1343,14 +1463,26 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	if (WARN_ON(reg_same_country_ie_hint(wiphy, checksum)))
 		goto free_rd_out;
 
+	request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
+	if (!request)
+		goto free_rd_out;
+
 	/* We keep this around for when CRDA comes back with a response so
 	 * we can intersect with that */
 	country_ie_regdomain = rd;
 
-	__regulatory_hint(wiphy, REGDOM_SET_BY_COUNTRY_IE,
-		country_ie_regdomain->alpha2, checksum, env);
+	request->wiphy_idx = get_wiphy_idx(wiphy);
+	request->alpha2[0] = rd->alpha2[0];
+	request->alpha2[1] = rd->alpha2[1];
+	request->initiator = REGDOM_SET_BY_COUNTRY_IE;
+	request->country_ie_checksum = checksum;
+	request->country_ie_env = env;
+
+	mutex_unlock(&cfg80211_mutex);
 
-	goto out;
+	queue_regulatory_request(request);
+
+	return;
 
 free_rd_out:
 	kfree(rd);
@@ -1661,6 +1793,8 @@ int regulatory_init(void)
 	if (IS_ERR(reg_pdev))
 		return PTR_ERR(reg_pdev);
 
+	spin_lock_init(&reg_requests_lock);
+
 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
 	cfg80211_regdomain = static_regdom(ieee80211_regdom);
 
@@ -1700,6 +1834,10 @@ int regulatory_init(void)
 
 void regulatory_exit(void)
 {
+	struct regulatory_request *reg_request, *tmp;
+
+	cancel_work_sync(&reg_work);
+
 	mutex_lock(&cfg80211_mutex);
 
 	reset_regdomains();
@@ -1711,5 +1849,15 @@ void regulatory_exit(void)
 
 	platform_device_unregister(reg_pdev);
 
+	spin_lock(&reg_requests_lock);
+	if (!list_empty(&reg_requests_list)) {
+		list_for_each_entry_safe(reg_request, tmp,
+					 &reg_requests_list, list) {
+			list_del(&reg_request->list);
+			kfree(reg_request);
+		}
+	}
+	spin_unlock(&reg_requests_lock);
+
 	mutex_unlock(&cfg80211_mutex);
 }
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index fe8c83f34fb7..4730def5a69d 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -6,6 +6,8 @@ extern const struct ieee80211_regdomain *cfg80211_regdomain;
 bool is_world_regdom(const char *alpha2);
 bool reg_is_valid_request(const char *alpha2);
 
+int regulatory_hint_user(const char *alpha2);
+
 void reg_device_remove(struct wiphy *wiphy);
 
 int regulatory_init(void);
-- 
cgit v1.2.3


From e38f8a7a8bebbab9d97f204e2cf05ef58b048a1d Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Sat, 21 Feb 2009 00:20:39 -0500
Subject: cfg80211: Add AP beacon regulatory hints

When devices are world roaming they cannot beacon or do active scan
on 5 GHz or on channels 12, 13 and 14 on the 2 GHz band. Although
we have a good regulatory API some cards may _always_ world roam, this
is also true when a system does not have CRDA present. Devices doing world
roaming can still passive scan, if they find a beacon from an AP on
one of the world roaming frequencies we make the assumption we can do
the same and we also remove the passive scan requirement.

This adds support for providing beacon regulatory hints based on scans.
This works for devices that do either hardware or software scanning.
If a channel has not yet been marked as having had a beacon present
on it we queue the beacon hint processing into the workqueue.

All wireless devices will benefit from beacon regulatory hints from
any wireless device on a system including new devices connected to
the system at a later time.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/wireless.h |   5 +-
 net/wireless/core.c    |   5 +-
 net/wireless/reg.c     | 224 ++++++++++++++++++++++++++++++++++++++++++++++++-
 net/wireless/reg.h     |  21 +++++
 net/wireless/scan.c    |   3 +
 5 files changed, 254 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/net/wireless.h b/include/net/wireless.h
index 1f4707d18adb..64a76208580c 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -69,6 +69,9 @@ enum ieee80211_channel_flags {
  * @band: band this channel belongs to.
  * @max_antenna_gain: maximum antenna gain in dBi
  * @max_power: maximum transmission power (in dBm)
+ * @beacon_found: helper to regulatory code to indicate when a beacon
+ *	has been found on this channel. Use regulatory_hint_found_beacon()
+ *	to enable this, this is is useful only on 5 GHz band.
  * @orig_mag: internal use
  * @orig_mpwr: internal use
  */
@@ -80,6 +83,7 @@ struct ieee80211_channel {
 	u32 flags;
 	int max_antenna_gain;
 	int max_power;
+	bool beacon_found;
 	u32 orig_flags;
 	int orig_mag, orig_mpwr;
 };
@@ -425,7 +429,6 @@ extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);
 extern void regulatory_hint_11d(struct wiphy *wiphy,
 				u8 *country_ie,
 				u8 country_ie_len);
-
 /**
  * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
  * @wiphy: the wireless device we want to process the regulatory domain on
diff --git a/net/wireless/core.c b/net/wireless/core.c
index b1a354b7fc06..dd7f222919fe 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -32,8 +32,9 @@ MODULE_DESCRIPTION("wireless configuration support");
 LIST_HEAD(cfg80211_drv_list);
 
 /*
- * This is used to protect the cfg80211_drv_list, cfg80211_regdomain, and
- * the last reguluatory request receipt in regd.c
+ * This is used to protect the cfg80211_drv_list, cfg80211_regdomain,
+ * country_ie_regdomain, the reg_beacon_list and the the last regulatory
+ * request receipt (last_request).
  */
 DEFINE_MUTEX(cfg80211_mutex);
 
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index da2a8aca4280..e5e432d6af34 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -68,9 +68,22 @@ const struct ieee80211_regdomain *cfg80211_regdomain;
  */
 static const struct ieee80211_regdomain *country_ie_regdomain;
 
+/* Used to queue up regulatory hints */
 static LIST_HEAD(reg_requests_list);
 static spinlock_t reg_requests_lock;
 
+/* Used to queue up beacon hints for review */
+static LIST_HEAD(reg_pending_beacons);
+static spinlock_t reg_pending_beacons_lock;
+
+/* Used to keep track of processed beacon hints */
+static LIST_HEAD(reg_beacon_list);
+
+struct reg_beacon {
+	struct list_head list;
+	struct ieee80211_channel chan;
+};
+
 /* We keep a static world regulatory domain in case of the absence of CRDA */
 static const struct ieee80211_regdomain world_regdom = {
 	.n_reg_rules = 3,
@@ -1011,16 +1024,120 @@ static void update_all_wiphy_regulatory(enum reg_set_by setby)
 		wiphy_update_regulatory(&drv->wiphy, setby);
 }
 
+static void handle_reg_beacon(struct wiphy *wiphy,
+			      unsigned int chan_idx,
+			      struct reg_beacon *reg_beacon)
+{
+#ifdef CONFIG_CFG80211_REG_DEBUG
+#define REG_DEBUG_BEACON_FLAG(desc) \
+	printk(KERN_DEBUG "cfg80211: Enabling " desc " on " \
+		"frequency: %d MHz (Ch %d) on %s\n", \
+		reg_beacon->chan.center_freq, \
+		ieee80211_frequency_to_channel(reg_beacon->chan.center_freq), \
+		wiphy_name(wiphy));
+#else
+#define REG_DEBUG_BEACON_FLAG(desc) do {} while (0)
+#endif
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_channel *chan;
+
+	assert_cfg80211_lock();
+
+	sband = wiphy->bands[reg_beacon->chan.band];
+	chan = &sband->channels[chan_idx];
+
+	if (likely(chan->center_freq != reg_beacon->chan.center_freq))
+		return;
+
+	if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) {
+		chan->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
+		REG_DEBUG_BEACON_FLAG("active scanning");
+	}
+
+	if (chan->flags & IEEE80211_CHAN_NO_IBSS) {
+		chan->flags &= ~IEEE80211_CHAN_NO_IBSS;
+		REG_DEBUG_BEACON_FLAG("beaconing");
+	}
+
+	chan->beacon_found = true;
+#undef REG_DEBUG_BEACON_FLAG
+}
+
+/*
+ * Called when a scan on a wiphy finds a beacon on
+ * new channel
+ */
+static void wiphy_update_new_beacon(struct wiphy *wiphy,
+				    struct reg_beacon *reg_beacon)
+{
+	unsigned int i;
+	struct ieee80211_supported_band *sband;
+
+	assert_cfg80211_lock();
+
+	if (!wiphy->bands[reg_beacon->chan.band])
+		return;
+
+	sband = wiphy->bands[reg_beacon->chan.band];
+
+	for (i = 0; i < sband->n_channels; i++)
+		handle_reg_beacon(wiphy, i, reg_beacon);
+}
+
+/*
+ * Called upon reg changes or a new wiphy is added
+ */
+static void wiphy_update_beacon_reg(struct wiphy *wiphy)
+{
+	unsigned int i;
+	struct ieee80211_supported_band *sband;
+	struct reg_beacon *reg_beacon;
+
+	assert_cfg80211_lock();
+
+	if (list_empty(&reg_beacon_list))
+		return;
+
+	list_for_each_entry(reg_beacon, &reg_beacon_list, list) {
+		if (!wiphy->bands[reg_beacon->chan.band])
+			continue;
+		sband = wiphy->bands[reg_beacon->chan.band];
+		for (i = 0; i < sband->n_channels; i++)
+			handle_reg_beacon(wiphy, i, reg_beacon);
+	}
+}
+
+static bool reg_is_world_roaming(struct wiphy *wiphy)
+{
+	if (is_world_regdom(cfg80211_regdomain->alpha2) ||
+	    (wiphy->regd && is_world_regdom(wiphy->regd->alpha2)))
+		return true;
+	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
+	    wiphy->custom_regulatory)
+		return true;
+	return false;
+}
+
+/* Reap the advantages of previously found beacons */
+static void reg_process_beacons(struct wiphy *wiphy)
+{
+	if (!reg_is_world_roaming(wiphy))
+		return;
+	wiphy_update_beacon_reg(wiphy);
+}
+
 void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
 {
 	enum ieee80211_band band;
 
 	if (ignore_reg_update(wiphy, setby))
-		return;
+		goto out;
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		if (wiphy->bands[band])
 			handle_band(wiphy, band);
 	}
+out:
+	reg_process_beacons(wiphy);
 	if (wiphy->reg_notifier)
 		wiphy->reg_notifier(wiphy, last_request);
 }
@@ -1314,6 +1431,7 @@ out:
 	return r;
 }
 
+/* Processes regulatory hints, this is all the REGDOM_SET_BY_* */
 static void reg_process_pending_hints(void)
 	{
 	struct regulatory_request *reg_request;
@@ -1344,9 +1462,44 @@ static void reg_process_pending_hints(void)
 	spin_unlock(&reg_requests_lock);
 }
 
+/* Processes beacon hints -- this has nothing to do with country IEs */
+static void reg_process_pending_beacon_hints(void)
+{
+	struct cfg80211_registered_device *drv;
+	struct reg_beacon *pending_beacon, *tmp;
+
+	mutex_lock(&cfg80211_mutex);
+
+	/* This goes through the _pending_ beacon list */
+	spin_lock_bh(&reg_pending_beacons_lock);
+
+	if (list_empty(&reg_pending_beacons)) {
+		spin_unlock_bh(&reg_pending_beacons_lock);
+		goto out;
+	}
+
+	list_for_each_entry_safe(pending_beacon, tmp,
+				 &reg_pending_beacons, list) {
+
+		list_del_init(&pending_beacon->list);
+
+		/* Applies the beacon hint to current wiphys */
+		list_for_each_entry(drv, &cfg80211_drv_list, list)
+			wiphy_update_new_beacon(&drv->wiphy, pending_beacon);
+
+		/* Remembers the beacon hint for new wiphys or reg changes */
+		list_add_tail(&pending_beacon->list, &reg_beacon_list);
+	}
+
+	spin_unlock_bh(&reg_pending_beacons_lock);
+out:
+	mutex_unlock(&cfg80211_mutex);
+}
+
 static void reg_todo(struct work_struct *work)
 {
 	reg_process_pending_hints();
+	reg_process_pending_beacon_hints();
 }
 
 static DECLARE_WORK(reg_work, reg_todo);
@@ -1587,6 +1740,55 @@ out:
 }
 EXPORT_SYMBOL(regulatory_hint_11d);
 
+static bool freq_is_chan_12_13_14(u16 freq)
+{
+	if (freq == ieee80211_channel_to_frequency(12) ||
+	    freq == ieee80211_channel_to_frequency(13) ||
+	    freq == ieee80211_channel_to_frequency(14))
+		return true;
+	return false;
+}
+
+int regulatory_hint_found_beacon(struct wiphy *wiphy,
+				 struct ieee80211_channel *beacon_chan,
+				 gfp_t gfp)
+{
+	struct reg_beacon *reg_beacon;
+
+	if (likely((beacon_chan->beacon_found ||
+	    (beacon_chan->flags & IEEE80211_CHAN_RADAR) ||
+	    (beacon_chan->band == IEEE80211_BAND_2GHZ &&
+	     !freq_is_chan_12_13_14(beacon_chan->center_freq)))))
+		return 0;
+
+	reg_beacon = kzalloc(sizeof(struct reg_beacon), gfp);
+	if (!reg_beacon)
+		return -ENOMEM;
+
+#ifdef CONFIG_CFG80211_REG_DEBUG
+	printk(KERN_DEBUG "cfg80211: Found new beacon on "
+		"frequency: %d MHz (Ch %d) on %s\n",
+		beacon_chan->center_freq,
+		ieee80211_frequency_to_channel(beacon_chan->center_freq),
+		wiphy_name(wiphy));
+#endif
+	memcpy(&reg_beacon->chan, beacon_chan,
+		sizeof(struct ieee80211_channel));
+
+
+	/*
+	 * Since we can be called from BH or and non-BH context
+	 * we must use spin_lock_bh()
+	 */
+	spin_lock_bh(&reg_pending_beacons_lock);
+	list_add_tail(&reg_beacon->list, &reg_pending_beacons);
+	spin_unlock_bh(&reg_pending_beacons_lock);
+
+	schedule_work(&reg_work);
+
+	return 0;
+}
+
 static void print_rd_rules(const struct ieee80211_regdomain *rd)
 {
 	unsigned int i;
@@ -1908,6 +2110,7 @@ int regulatory_init(void)
 		return PTR_ERR(reg_pdev);
 
 	spin_lock_init(&reg_requests_lock);
+	spin_lock_init(&reg_pending_beacons_lock);
 
 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
 	cfg80211_regdomain = static_regdom(ieee80211_regdom);
@@ -1951,6 +2154,7 @@ int regulatory_init(void)
 void regulatory_exit(void)
 {
 	struct regulatory_request *reg_request, *tmp;
+	struct reg_beacon *reg_beacon, *btmp;
 
 	cancel_work_sync(&reg_work);
 
@@ -1965,6 +2169,24 @@ void regulatory_exit(void)
 
 	platform_device_unregister(reg_pdev);
 
+	spin_lock_bh(&reg_pending_beacons_lock);
+	if (!list_empty(&reg_pending_beacons)) {
+		list_for_each_entry_safe(reg_beacon, btmp,
+					 &reg_pending_beacons, list) {
+			list_del(&reg_beacon->list);
+			kfree(reg_beacon);
+		}
+	}
+	spin_unlock_bh(&reg_pending_beacons_lock);
+
+	if (!list_empty(&reg_beacon_list)) {
+		list_for_each_entry_safe(reg_beacon, btmp,
+					 &reg_beacon_list, list) {
+			list_del(&reg_beacon->list);
+			kfree(reg_beacon);
+		}
+	}
+
 	spin_lock(&reg_requests_lock);
 	if (!list_empty(&reg_requests_list)) {
 		list_for_each_entry_safe(reg_request, tmp,
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index 4730def5a69d..65bfd0558ce1 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -38,4 +38,25 @@ extern int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by,
 			     const char *alpha2, u32 country_ie_checksum,
 			     enum environment_cap country_ie_env);
 
+/**
+ * regulatory_hint_found_beacon - hints a beacon was found on a channel
+ * @wiphy: the wireless device where the beacon was found on
+ * @beacon_chan: the channel on which the beacon was found on
+ * @gfp: context flags
+ *
+ * This informs the wireless core that a beacon from an AP was found on
+ * the channel provided. This allows the wireless core to make educated
+ * guesses on regulatory to help with world roaming. This is only used for
+ * world roaming -- when we do not know our current location. This is
+ * only useful on channels 12, 13 and 14 on the 2 GHz band as channels
+ * 1-11 are already enabled by the world regulatory domain; and on
+ * non-radar 5 GHz channels.
+ *
+ * Drivers do not need to call this, cfg80211 will do it for after a scan
+ * on a newly found BSS.
+ */
+int regulatory_hint_found_beacon(struct wiphy *wiphy,
+					struct ieee80211_channel *beacon_chan,
+					gfp_t gfp);
+
 #endif  /* __NET_WIRELESS_REG_H */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 60600657b657..280dbcd02c15 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -430,6 +430,9 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 	if (!res)
 		return NULL;
 
+	if (res->pub.capability & WLAN_CAPABILITY_ESS)
+		regulatory_hint_found_beacon(wiphy, channel, gfp);
+
 	/* cfg80211_bss_update gives us a referenced result */
 	return &res->pub;
 }
-- 
cgit v1.2.3


From 8b37dbd2a180667e51db0552383df18743239c25 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Sat, 28 Feb 2009 21:14:20 +0000
Subject: ASoC: Add SND_SOC_DAPM_PIN_SWITCH controls for exposing DAPM pins

On some systems it is desirable for control for DAPM pins to be provided
to user space. This is the case with things like GSM modems which are
controlled primarily from user space, for example. Provide a helper which
exposes the state of a DAPM pin to user space for use in cases like this.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/soc-dapm.h | 12 +++++++++
 sound/soc/soc-dapm.c     | 70 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 82 insertions(+)

(limited to 'include')

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index bb3a863ad14e..a7def6a9a030 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -192,6 +192,12 @@
 	.get = snd_soc_dapm_get_value_enum_double, \
 	.put = snd_soc_dapm_put_value_enum_double, \
 	.private_value = (unsigned long)&xenum }
+#define SOC_DAPM_PIN_SWITCH(xname) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
+	.info = snd_soc_dapm_info_pin_switch, \
+	.get = snd_soc_dapm_get_pin_switch, \
+	.put = snd_soc_dapm_put_pin_switch, \
+	.private_value = (unsigned long)xname }
 
 /* dapm stream operations */
 #define SND_SOC_DAPM_STREAM_NOP			0x0
@@ -238,6 +244,12 @@ int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
+int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_info *uinfo);
+int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *uncontrol);
+int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *uncontrol);
 int snd_soc_dapm_new_control(struct snd_soc_codec *codec,
 	const struct snd_soc_dapm_widget *widget);
 int snd_soc_dapm_new_controls(struct snd_soc_codec *codec,
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index f4a8753c84c0..4b8dbbfe2efb 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1420,6 +1420,76 @@ out:
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double);
 
+/**
+ * snd_soc_dapm_info_pin_switch - Info for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a pin switch control.
+ */
+int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch);
+
+/**
+ * snd_soc_dapm_get_pin_switch - Get information for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @ucontrol: Value
+ */
+int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	const char *pin = (const char *)kcontrol->private_value;
+
+	mutex_lock(&codec->mutex);
+
+	ucontrol->value.integer.value[0] =
+		snd_soc_dapm_get_pin_status(codec, pin);
+
+	mutex_unlock(&codec->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch);
+
+/**
+ * snd_soc_dapm_put_pin_switch - Set information for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @ucontrol: Value
+ */
+int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	const char *pin = (const char *)kcontrol->private_value;
+
+	mutex_lock(&codec->mutex);
+
+	if (ucontrol->value.integer.value[0])
+		snd_soc_dapm_enable_pin(codec, pin);
+	else
+		snd_soc_dapm_disable_pin(codec, pin);
+
+	snd_soc_dapm_sync(codec);
+
+	mutex_unlock(&codec->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
+
 /**
  * snd_soc_dapm_new_control - create new dapm control
  * @codec: audio codec
-- 
cgit v1.2.3


From 758ce5c8d11d6fc57fe5f1dbc237aa8ff6386eac Mon Sep 17 00:00:00 2001
From: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Date: Sat, 28 Feb 2009 04:44:37 +0000
Subject: tcp: add helper for AI algorithm
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

It seems that implementation in yeah was inconsistent to what
other did as it would increase cwnd one ack earlier than the
others do.

Size benefits:

  bictcp_cong_avoid |  -36
  tcp_cong_avoid_ai |  +52
  bictcp_cong_avoid |  -34
  tcp_scalable_cong_avoid |  -36
  tcp_veno_cong_avoid |  -12
  tcp_yeah_cong_avoid |  -38

= -104 bytes total

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h       |  1 +
 net/ipv4/tcp_bic.c      | 11 +----------
 net/ipv4/tcp_cong.c     | 21 ++++++++++++++-------
 net/ipv4/tcp_cubic.c    | 11 +----------
 net/ipv4/tcp_scalable.c | 10 ++--------
 net/ipv4/tcp_veno.c     |  7 +------
 net/ipv4/tcp_yeah.c     |  9 +--------
 7 files changed, 21 insertions(+), 49 deletions(-)

(limited to 'include')

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 218235de8963..0366a559afec 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -685,6 +685,7 @@ extern void tcp_get_allowed_congestion_control(char *buf, size_t len);
 extern int tcp_set_allowed_congestion_control(char *allowed);
 extern int tcp_set_congestion_control(struct sock *sk, const char *name);
 extern void tcp_slow_start(struct tcp_sock *tp);
+extern void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w);
 
 extern struct tcp_congestion_ops tcp_init_congestion_ops;
 extern u32 tcp_reno_ssthresh(struct sock *sk);
diff --git a/net/ipv4/tcp_bic.c b/net/ipv4/tcp_bic.c
index 7eb7636db0d0..3b53fd1af23f 100644
--- a/net/ipv4/tcp_bic.c
+++ b/net/ipv4/tcp_bic.c
@@ -149,16 +149,7 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		tcp_slow_start(tp);
 	else {
 		bictcp_update(ca, tp->snd_cwnd);
-
-		/* In dangerous area, increase slowly.
-		 * In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd
-		 */
-		if (tp->snd_cwnd_cnt >= ca->cnt) {
-			if (tp->snd_cwnd < tp->snd_cwnd_clamp)
-				tp->snd_cwnd++;
-			tp->snd_cwnd_cnt = 0;
-		} else
-			tp->snd_cwnd_cnt++;
+		tcp_cong_avoid_ai(tp, ca->cnt);
 	}
 
 }
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 4ec5b4e97c4e..e92beb9e55e0 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -336,6 +336,19 @@ void tcp_slow_start(struct tcp_sock *tp)
 }
 EXPORT_SYMBOL_GPL(tcp_slow_start);
 
+/* In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd (or alternative w) */
+void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w)
+{
+	if (tp->snd_cwnd_cnt >= w) {
+		if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+			tp->snd_cwnd++;
+		tp->snd_cwnd_cnt = 0;
+	} else {
+		tp->snd_cwnd_cnt++;
+	}
+}
+EXPORT_SYMBOL_GPL(tcp_cong_avoid_ai);
+
 /*
  * TCP Reno congestion control
  * This is special case used for fallback as well.
@@ -365,13 +378,7 @@ void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 				tp->snd_cwnd++;
 		}
 	} else {
-		/* In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd */
-		if (tp->snd_cwnd_cnt >= tp->snd_cwnd) {
-			if (tp->snd_cwnd < tp->snd_cwnd_clamp)
-				tp->snd_cwnd++;
-			tp->snd_cwnd_cnt = 0;
-		} else
-			tp->snd_cwnd_cnt++;
+		tcp_cong_avoid_ai(tp, tp->snd_cwnd);
 	}
 }
 EXPORT_SYMBOL_GPL(tcp_reno_cong_avoid);
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index ee467ec40c4f..71d5f2f29fa6 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -294,16 +294,7 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		tcp_slow_start(tp);
 	} else {
 		bictcp_update(ca, tp->snd_cwnd);
-
-		/* In dangerous area, increase slowly.
-		 * In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd
-		 */
-		if (tp->snd_cwnd_cnt >= ca->cnt) {
-			if (tp->snd_cwnd < tp->snd_cwnd_clamp)
-				tp->snd_cwnd++;
-			tp->snd_cwnd_cnt = 0;
-		} else
-			tp->snd_cwnd_cnt++;
+		tcp_cong_avoid_ai(tp, ca->cnt);
 	}
 
 }
diff --git a/net/ipv4/tcp_scalable.c b/net/ipv4/tcp_scalable.c
index 4660b088a8ce..a76513779e2b 100644
--- a/net/ipv4/tcp_scalable.c
+++ b/net/ipv4/tcp_scalable.c
@@ -24,14 +24,8 @@ static void tcp_scalable_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 
 	if (tp->snd_cwnd <= tp->snd_ssthresh)
 		tcp_slow_start(tp);
-	else {
-		tp->snd_cwnd_cnt++;
-		if (tp->snd_cwnd_cnt > min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT)){
-			if (tp->snd_cwnd < tp->snd_cwnd_clamp)
-				tp->snd_cwnd++;
-			tp->snd_cwnd_cnt = 0;
-		}
-	}
+	else
+		tcp_cong_avoid_ai(tp, min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT));
 }
 
 static u32 tcp_scalable_ssthresh(struct sock *sk)
diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c
index d08b2e855c22..e9bbff746488 100644
--- a/net/ipv4/tcp_veno.c
+++ b/net/ipv4/tcp_veno.c
@@ -159,12 +159,7 @@ static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 				/* In the "non-congestive state", increase cwnd
 				 *  every rtt.
 				 */
-				if (tp->snd_cwnd_cnt >= tp->snd_cwnd) {
-					if (tp->snd_cwnd < tp->snd_cwnd_clamp)
-						tp->snd_cwnd++;
-					tp->snd_cwnd_cnt = 0;
-				} else
-					tp->snd_cwnd_cnt++;
+				tcp_cong_avoid_ai(tp, tp->snd_cwnd);
 			} else {
 				/* In the "congestive state", increase cwnd
 				 * every other rtt.
diff --git a/net/ipv4/tcp_yeah.c b/net/ipv4/tcp_yeah.c
index 9ec843a9bbb2..66b6821b984e 100644
--- a/net/ipv4/tcp_yeah.c
+++ b/net/ipv4/tcp_yeah.c
@@ -94,14 +94,7 @@ static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 
 	} else {
 		/* Reno */
-
-		if (tp->snd_cwnd_cnt < tp->snd_cwnd)
-			tp->snd_cwnd_cnt++;
-
-		if (tp->snd_cwnd_cnt >= tp->snd_cwnd) {
-			tp->snd_cwnd++;
-			tp->snd_cwnd_cnt = 0;
-		}
+		tcp_cong_avoid_ai(tp, tp->snd_cwnd);
 	}
 
 	/* The key players are v_vegas.beg_snd_una and v_beg_snd_nxt.
-- 
cgit v1.2.3


From cabeccbd172cc305f4383f5a4808ae254745275f Mon Sep 17 00:00:00 2001
From: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Date: Sat, 28 Feb 2009 04:44:38 +0000
Subject: tcp: kill eff_sacks "cache", the sole user can calculate itself
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Also fixes insignificant bug that would cause sending of stale
SACK block (would occur in some corner cases).

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/tcp.h      |  1 -
 include/net/tcp.h        |  1 -
 net/ipv4/tcp_input.c     | 15 ++-------------
 net/ipv4/tcp_minisocks.c |  3 +--
 net/ipv4/tcp_output.c    | 12 ++++++------
 5 files changed, 9 insertions(+), 23 deletions(-)

(limited to 'include')

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 0cd99e6baca5..4b86ad71e054 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -218,7 +218,6 @@ struct tcp_options_received {
 		snd_wscale : 4,	/* Window scaling received from sender	*/
 		rcv_wscale : 4;	/* Window scaling to send to receiver	*/
 /*	SACKs data	*/
-	u8	eff_sacks;	/* Size of SACK array to send with next packet */
 	u8	num_sacks;	/* Number of SACK blocks		*/
 	u16	user_mss;  	/* mss requested by user in ioctl */
 	u16	mss_clamp;	/* Maximal mss, negotiated at connection setup */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 0366a559afec..055e4946d4c8 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -926,7 +926,6 @@ extern void tcp_done(struct sock *sk);
 static inline void tcp_sack_reset(struct tcp_options_received *rx_opt)
 {
 	rx_opt->dsack = 0;
-	rx_opt->eff_sacks = 0;
 	rx_opt->num_sacks = 0;
 }
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 03f5ede87224..e4442a293eb0 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4099,7 +4099,6 @@ static void tcp_dsack_set(struct sock *sk, u32 seq, u32 end_seq)
 		tp->rx_opt.dsack = 1;
 		tp->duplicate_sack[0].start_seq = seq;
 		tp->duplicate_sack[0].end_seq = end_seq;
-		tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks + 1;
 	}
 }
 
@@ -4154,8 +4153,6 @@ static void tcp_sack_maybe_coalesce(struct tcp_sock *tp)
 			 * Decrease num_sacks.
 			 */
 			tp->rx_opt.num_sacks--;
-			tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks +
-					       tp->rx_opt.dsack;
 			for (i = this_sack; i < tp->rx_opt.num_sacks; i++)
 				sp[i] = sp[i + 1];
 			continue;
@@ -4218,7 +4215,6 @@ new_sack:
 	sp->start_seq = seq;
 	sp->end_seq = end_seq;
 	tp->rx_opt.num_sacks++;
-	tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks + tp->rx_opt.dsack;
 }
 
 /* RCV.NXT advances, some SACKs should be eaten. */
@@ -4232,7 +4228,6 @@ static void tcp_sack_remove(struct tcp_sock *tp)
 	/* Empty ofo queue, hence, all the SACKs are eaten. Clear. */
 	if (skb_queue_empty(&tp->out_of_order_queue)) {
 		tp->rx_opt.num_sacks = 0;
-		tp->rx_opt.eff_sacks = tp->rx_opt.dsack;
 		return;
 	}
 
@@ -4253,11 +4248,8 @@ static void tcp_sack_remove(struct tcp_sock *tp)
 		this_sack++;
 		sp++;
 	}
-	if (num_sacks != tp->rx_opt.num_sacks) {
+	if (num_sacks != tp->rx_opt.num_sacks)
 		tp->rx_opt.num_sacks = num_sacks;
-		tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks +
-				       tp->rx_opt.dsack;
-	}
 }
 
 /* This one checks to see if we can put data from the
@@ -4333,10 +4325,8 @@ static void tcp_data_queue(struct sock *sk, struct sk_buff *skb)
 
 	TCP_ECN_accept_cwr(tp, skb);
 
-	if (tp->rx_opt.dsack) {
+	if (tp->rx_opt.dsack)
 		tp->rx_opt.dsack = 0;
-		tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks;
-	}
 
 	/*  Queue data for delivery to the user.
 	 *  Packets in sequence go to the receive queue.
@@ -4456,7 +4446,6 @@ drop:
 		if (tcp_is_sack(tp)) {
 			tp->rx_opt.num_sacks = 1;
 			tp->rx_opt.dsack     = 0;
-			tp->rx_opt.eff_sacks = 1;
 			tp->selective_acks[0].start_seq = TCP_SKB_CB(skb)->seq;
 			tp->selective_acks[0].end_seq =
 						TCP_SKB_CB(skb)->end_seq;
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index f67effbb102b..bb3d8b35f19a 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -434,9 +434,8 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
 		newtp->rx_opt.saw_tstamp = 0;
 
 		newtp->rx_opt.dsack = 0;
-		newtp->rx_opt.eff_sacks = 0;
-
 		newtp->rx_opt.num_sacks = 0;
+
 		newtp->urg_data = 0;
 
 		if (sock_flag(newsk, SOCK_KEEPOPEN))
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 61445b57610c..1555bb73b638 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -441,10 +441,8 @@ static void tcp_options_write(__be32 *ptr, struct tcp_sock *tp,
 			*ptr++ = htonl(sp[this_sack].end_seq);
 		}
 
-		if (tp->rx_opt.dsack) {
+		if (tp->rx_opt.dsack)
 			tp->rx_opt.dsack = 0;
-			tp->rx_opt.eff_sacks = tp->rx_opt.num_sacks;
-		}
 	}
 }
 
@@ -550,6 +548,7 @@ static unsigned tcp_established_options(struct sock *sk, struct sk_buff *skb,
 	struct tcp_skb_cb *tcb = skb ? TCP_SKB_CB(skb) : NULL;
 	struct tcp_sock *tp = tcp_sk(sk);
 	unsigned size = 0;
+	unsigned int eff_sacks;
 
 #ifdef CONFIG_TCP_MD5SIG
 	*md5 = tp->af_specific->md5_lookup(sk, sk);
@@ -568,10 +567,11 @@ static unsigned tcp_established_options(struct sock *sk, struct sk_buff *skb,
 		size += TCPOLEN_TSTAMP_ALIGNED;
 	}
 
-	if (unlikely(tp->rx_opt.eff_sacks)) {
+	eff_sacks = tp->rx_opt.num_sacks + tp->rx_opt.dsack;
+	if (unlikely(eff_sacks)) {
 		const unsigned remaining = MAX_TCP_OPTION_SPACE - size;
 		opts->num_sack_blocks =
-			min_t(unsigned, tp->rx_opt.eff_sacks,
+			min_t(unsigned, eff_sacks,
 			      (remaining - TCPOLEN_SACK_BASE_ALIGNED) /
 			      TCPOLEN_SACK_PERBLOCK);
 		size += TCPOLEN_SACK_BASE_ALIGNED +
@@ -1418,7 +1418,7 @@ static int tcp_mtu_probe(struct sock *sk)
 	    icsk->icsk_mtup.probe_size ||
 	    inet_csk(sk)->icsk_ca_state != TCP_CA_Open ||
 	    tp->snd_cwnd < 11 ||
-	    tp->rx_opt.eff_sacks)
+	    tp->rx_opt.num_sacks || tp->rx_opt.dsack)
 		return -1;
 
 	/* Very simple search strategy: just double the MSS. */
-- 
cgit v1.2.3


From 8987691a4aa6622a1b58bb12c56abaf3d2098fad Mon Sep 17 00:00:00 2001
From: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Date: Sat, 28 Feb 2009 23:42:50 +0000
Subject: wimax/i2400m: allow control of the base-station idle mode timeout

For power saving reasons, WiMAX links can be put in idle mode while
connected after a certain time of the link not being used for tx or
rx. In this mode, the device pages the base-station regularly and when
data is ready to be transmitted, the link is revived.

This patch allows the user to control the time the device has to be
idle before it decides to go to idle mode from a sysfs
interace.

It also updates the initialization code to acknowledge the module
variable 'idle_mode_disabled' when the firmware is a newer version
(upcoming 1.4 vs 2.6.29's v1.3).

The method for setting the idle mode timeout in the older firmwares is
much more limited and can be only done at initialization time. Thus,
the sysfs file will return -ENOSYS on older ones.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wimax/i2400m/Makefile       |  1 +
 drivers/net/wimax/i2400m/control.c      | 98 ++++++++++++++++++++++++++++++---
 drivers/net/wimax/i2400m/debug-levels.h |  1 +
 drivers/net/wimax/i2400m/driver.c       | 10 ++++
 drivers/net/wimax/i2400m/i2400m.h       | 29 ++++++++++
 drivers/net/wimax/i2400m/sysfs.c        | 80 +++++++++++++++++++++++++++
 include/linux/wimax/i2400m.h            | 10 ++++
 7 files changed, 221 insertions(+), 8 deletions(-)
 create mode 100644 drivers/net/wimax/i2400m/sysfs.c

(limited to 'include')

diff --git a/drivers/net/wimax/i2400m/Makefile b/drivers/net/wimax/i2400m/Makefile
index 1696e936cf5a..5d9e018d31af 100644
--- a/drivers/net/wimax/i2400m/Makefile
+++ b/drivers/net/wimax/i2400m/Makefile
@@ -8,6 +8,7 @@ i2400m-y :=		\
 	driver.o	\
 	fw.o		\
 	op-rfkill.o	\
+	sysfs.o		\
 	netdev.o	\
 	tx.o		\
 	rx.o
diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c
index c8b3a68b72b8..c3968b240d69 100644
--- a/drivers/net/wimax/i2400m/control.c
+++ b/drivers/net/wimax/i2400m/control.c
@@ -1221,6 +1221,77 @@ none:
 EXPORT_SYMBOL_GPL(i2400m_set_init_config);
 
 
+/**
+ * i2400m_set_idle_timeout - Set the device's idle mode timeout
+ *
+ * @i2400m: i2400m device descriptor
+ *
+ * @msecs: milliseconds for the timeout to enter idle mode. Between
+ *     100 to 300000 (5m); 0 to disable. In increments of 100.
+ *
+ * After this @msecs of the link being idle (no data being sent or
+ * received), the device will negotiate with the basestation entering
+ * idle mode for saving power. The connection is maintained, but
+ * getting out of it (done in tx.c) will require some negotiation,
+ * possible crypto re-handshake and a possible DHCP re-lease.
+ *
+ * Only available if fw_version >= 0x00090002.
+ *
+ * Returns: 0 if ok, < 0 errno code on error.
+ */
+int i2400m_set_idle_timeout(struct i2400m *i2400m, unsigned msecs)
+{
+	int result;
+	struct device *dev = i2400m_dev(i2400m);
+	struct sk_buff *ack_skb;
+	struct {
+		struct i2400m_l3l4_hdr hdr;
+		struct i2400m_tlv_config_idle_timeout cit;
+	} *cmd;
+	const struct i2400m_l3l4_hdr *ack;
+	size_t ack_len;
+	char strerr[32];
+
+	result = -ENOSYS;
+	if (i2400m_le_v1_3(i2400m))
+		goto error_alloc;
+	result = -ENOMEM;
+	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+	if (cmd == NULL)
+		goto error_alloc;
+	cmd->hdr.type = cpu_to_le16(I2400M_MT_GET_STATE);
+	cmd->hdr.length = cpu_to_le16(sizeof(*cmd) - sizeof(cmd->hdr));
+	cmd->hdr.version = cpu_to_le16(I2400M_L3L4_VERSION);
+
+	cmd->cit.hdr.type =
+		cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT);
+	cmd->cit.hdr.length = cpu_to_le16(sizeof(cmd->cit.timeout));
+	cmd->cit.timeout = cpu_to_le32(msecs);
+
+	ack_skb = i2400m_msg_to_dev(i2400m, cmd, sizeof(*cmd));
+	if (IS_ERR(ack_skb)) {
+		dev_err(dev, "Failed to issue 'set idle timeout' command: "
+			"%ld\n", PTR_ERR(ack_skb));
+		result = PTR_ERR(ack_skb);
+		goto error_msg_to_dev;
+	}
+	ack = wimax_msg_data_len(ack_skb, &ack_len);
+	result = i2400m_msg_check_status(ack, strerr, sizeof(strerr));
+	if (result < 0) {
+		dev_err(dev, "'set idle timeout' (0x%04x) command failed: "
+			"%d - %s\n", I2400M_MT_GET_STATE, result, strerr);
+		goto error_cmd_failed;
+	}
+	result = 0;
+	kfree_skb(ack_skb);
+error_cmd_failed:
+error_msg_to_dev:
+	kfree(cmd);
+error_alloc:
+	return result;
+}
+
+
 /**
  * i2400m_dev_initialize - Initialize the device once communications are ready
  *
@@ -1239,19 +1310,28 @@ int i2400m_dev_initialize(struct i2400m *i2400m)
 	int result;
 	struct device *dev = i2400m_dev(i2400m);
 	struct i2400m_tlv_config_idle_parameters idle_params;
+	struct i2400m_tlv_config_idle_timeout idle_timeout;
 	const struct i2400m_tlv_hdr *args[9];
 	unsigned argc = 0;
 
 	d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
-	/* Useless for now...might change */
 	if (i2400m_idle_mode_disabled) {
-		idle_params.hdr.type =
-			cpu_to_le16(I2400M_TLV_CONFIG_IDLE_PARAMETERS);
-		idle_params.hdr.length = cpu_to_le16(
-			sizeof(idle_params) - sizeof(idle_params.hdr));
-		idle_params.idle_timeout = 0;
-		idle_params.idle_paging_interval = 0;
-		args[argc++] = &idle_params.hdr;
+		if (i2400m_le_v1_3(i2400m)) {
+			idle_params.hdr.type =
+				cpu_to_le16(I2400M_TLV_CONFIG_IDLE_PARAMETERS);
+			idle_params.hdr.length = cpu_to_le16(
+				sizeof(idle_params) - sizeof(idle_params.hdr));
+			idle_params.idle_timeout = 0;
+			idle_params.idle_paging_interval = 0;
+			args[argc++] = &idle_params.hdr;
+		} else {
+			idle_timeout.hdr.type =
+				cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT);
+			idle_timeout.hdr.length = cpu_to_le16(
+				sizeof(idle_timeout) - sizeof(idle_timeout.hdr));
+			idle_timeout.timeout = 0;
+			args[argc++] = &idle_timeout.hdr;
+		}
 	}
 	result = i2400m_set_init_config(i2400m, args, argc);
 	if (result < 0)
@@ -1264,6 +1344,8 @@ int i2400m_dev_initialize(struct i2400m *i2400m)
 	 */
 	result = i2400m_cmd_get_state(i2400m);
 error:
+	if (result < 0)
+		dev_err(dev, "failed to initialize the device: %d\n", result);
 	d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
 	return result;
 }
diff --git a/drivers/net/wimax/i2400m/debug-levels.h b/drivers/net/wimax/i2400m/debug-levels.h
index 3183baa16a52..48fbfaa0d403 100644
--- a/drivers/net/wimax/i2400m/debug-levels.h
+++ b/drivers/net/wimax/i2400m/debug-levels.h
@@ -38,6 +38,7 @@ enum d_module {
 	D_SUBMODULE_DECLARE(netdev),
 	D_SUBMODULE_DECLARE(rfkill),
 	D_SUBMODULE_DECLARE(rx),
+	D_SUBMODULE_DECLARE(sysfs),
 	D_SUBMODULE_DECLARE(tx),
 };
 
diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c
index 69a816e7c5db..f988771bfae0 100644
--- a/drivers/net/wimax/i2400m/driver.c
+++ b/drivers/net/wimax/i2400m/driver.c
@@ -662,6 +662,11 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
 	wimax_state_change(wimax_dev, WIMAX_ST_UNINITIALIZED);
 
 	/* Now setup all that requires a registered net and wimax device. */
+	result = sysfs_create_group(&net_dev->dev.kobj, &i2400m_dev_attr_group);
+	if (result < 0) {
+		dev_err(dev, "cannot setup i2400m's sysfs: %d\n", result);
+		goto error_sysfs_setup;
+	}
 	result = i2400m_debugfs_add(i2400m);
 	if (result < 0) {
 		dev_err(dev, "cannot setup i2400m's debugfs: %d\n", result);
@@ -671,6 +676,9 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
 	return result;
 
 error_debugfs_setup:
+	sysfs_remove_group(&i2400m->wimax_dev.net_dev->dev.kobj,
+			   &i2400m_dev_attr_group);
+error_sysfs_setup:
 	wimax_dev_rm(&i2400m->wimax_dev);
 error_wimax_dev_add:
 	i2400m_dev_stop(i2400m);
@@ -702,6 +710,8 @@ void i2400m_release(struct i2400m *i2400m)
 	netif_stop_queue(i2400m->wimax_dev.net_dev);
 
 	i2400m_debugfs_rm(i2400m);
+	sysfs_remove_group(&i2400m->wimax_dev.net_dev->dev.kobj,
+			   &i2400m_dev_attr_group);
 	wimax_dev_rm(&i2400m->wimax_dev);
 	i2400m_dev_stop(i2400m);
 	unregister_netdev(i2400m->wimax_dev.net_dev);
diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h
index 5008cdb12b42..0c60d5c43007 100644
--- a/drivers/net/wimax/i2400m/i2400m.h
+++ b/drivers/net/wimax/i2400m/i2400m.h
@@ -585,6 +585,8 @@ unsigned i2400m_brh_get_signature(const struct i2400m_bootrom_header *hdr)
  * Driver / device setup and internal functions
  */
 extern void i2400m_netdev_setup(struct net_device *net_dev);
+extern int i2400m_sysfs_setup(struct device_driver *);
+extern void i2400m_sysfs_release(struct device_driver *);
 extern int i2400m_tx_setup(struct i2400m *);
 extern void i2400m_wake_tx_work(struct work_struct *);
 extern void i2400m_tx_release(struct i2400m *);
@@ -728,6 +730,7 @@ extern struct sk_buff *i2400m_get_device_info(struct i2400m *);
 extern int i2400m_firmware_check(struct i2400m *);
 extern int i2400m_set_init_config(struct i2400m *,
 				  const struct i2400m_tlv_hdr **, size_t);
+extern int i2400m_set_idle_timeout(struct i2400m *, unsigned);
 
 static inline
 struct usb_endpoint_descriptor *usb_get_epd(struct usb_interface *iface, int ep)
@@ -740,6 +743,32 @@ extern int i2400m_op_rfkill_sw_toggle(struct wimax_dev *,
 extern void i2400m_report_tlv_rf_switches_status(
 	struct i2400m *, const struct i2400m_tlv_rf_switches_status *);
 
+/*
+ * Helpers for firmware backwards compability
+ *
+ * As we aim to support at least the firmware version that was
+ * released with the previous kernel/driver release, some code will be
+ * conditionally executed depending on the firmware version. On each
+ * release, the code to support fw releases past the last two ones
+ * will be purged.
+ *
+ * By making it depend on this macros, it is easier to keep it a tab
+ * on what has to go and what not.
+ */
+static inline
+unsigned i2400m_le_v1_3(struct i2400m *i2400m)
+{
+	/* running fw is lower or v1.3 */
+	return i2400m->fw_version <= 0x00090001;
+}
+
+static inline
+unsigned i2400m_ge_v1_4(struct i2400m *i2400m)
+{
+	/* running fw is higher or v1.4 */
+	return i2400m->fw_version >= 0x00090002;
+}
+
 
 /*
  * Do a millisecond-sleep for allowing wireshark to dump all the data
diff --git a/drivers/net/wimax/i2400m/sysfs.c b/drivers/net/wimax/i2400m/sysfs.c
new file mode 100644
index 000000000000..1237109f251a
--- /dev/null
+++ b/drivers/net/wimax/i2400m/sysfs.c
@@ -0,0 +1,80 @@
+/*
+ * Intel Wireless WiMAX Connection 2400m
+ * Sysfs interfaces to show driver and device information
+ *
+ *
+ * Copyright (C) 2007 Intel Corporation <linux-wimax@intel.com>
+ * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/spinlock.h>
+#include <linux/device.h>
+#include "i2400m.h"
+
+
+#define D_SUBMODULE sysfs
+#include "debug-levels.h"
+
+
+/*
+ * Set the idle timeout (msecs)
+ *
+ * FIXME: eventually this should be a common WiMAX stack method, but
+ * would like to wait to see how other devices manage it.
+ */
+static
+ssize_t i2400m_idle_timeout_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t size)
+{
+	ssize_t result;
+	struct i2400m *i2400m = net_dev_to_i2400m(to_net_dev(dev));
+	unsigned val;
+
+	result = -EINVAL;
+	if (sscanf(buf, "%u\n", &val) != 1)
+		goto error_no_unsigned;
+	if (val != 0 && (val < 100 || val > 300000 || val % 100 != 0)) {
+		dev_err(dev, "idle_timeout: %u: invalid msecs specification; "
+			"valid values are 0, 100-300000 in 100 increments\n",
+			val);
+		goto error_bad_value;
+	}
+	result = i2400m_set_idle_timeout(i2400m, val);
+	if (result >= 0)
+		result = size;
+error_no_unsigned:
+error_bad_value:
+	return result;
+}
+
+static
+DEVICE_ATTR(i2400m_idle_timeout, S_IWUSR,
+	    NULL, i2400m_idle_timeout_store);
+
+static
+struct attribute *i2400m_dev_attrs[] = {
+	&dev_attr_i2400m_idle_timeout.attr,
+	NULL,
+};
+
+struct attribute_group i2400m_dev_attr_group = {
+	.name = NULL,		/* we want them in the same directory */
+	.attrs = i2400m_dev_attrs,
+};
diff --git a/include/linux/wimax/i2400m.h b/include/linux/wimax/i2400m.h
index 74198f5bb4dc..686eeb2b9704 100644
--- a/include/linux/wimax/i2400m.h
+++ b/include/linux/wimax/i2400m.h
@@ -381,6 +381,7 @@ enum i2400m_tlv {
 	I2400M_TLV_RF_STATUS = 163,
 	I2400M_TLV_DEVICE_RESET_TYPE = 132,
 	I2400M_TLV_CONFIG_IDLE_PARAMETERS = 601,
+	I2400M_TLV_CONFIG_IDLE_TIMEOUT = 611,
 };
 
 
@@ -509,4 +510,13 @@ struct i2400m_tlv_media_status {
 	__le32 media_status;
 } __attribute__((packed));
 
+
+/* New in v1.4 */
+struct i2400m_tlv_config_idle_timeout {
+	struct i2400m_tlv_hdr hdr;
+	__le32 timeout;	/* 100 to 300000 ms [5min], 100 increments
+			 * 0 disabled */
+} __attribute__((packed));
+
+
 #endif /* #ifndef __LINUX__WIMAX__I2400M_H__ */
-- 
cgit v1.2.3


From 347707baa77d273d79258303e00200d40cf3b323 Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay.sievers@vrfy.org>
Date: Sat, 28 Feb 2009 23:42:51 +0000
Subject: wimax: struct device - replace bus_id with dev_name(), dev_set_name()

Cc: inaky.perez-gonzalez@intel.com
Cc: linux-wimax@intel.com
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wimax/i2400m/driver.c    | 2 +-
 drivers/net/wimax/i2400m/usb-notif.c | 2 +-
 include/linux/wimax/debug.h          | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c
index f988771bfae0..e4f1ce5bc294 100644
--- a/drivers/net/wimax/i2400m/driver.c
+++ b/drivers/net/wimax/i2400m/driver.c
@@ -618,7 +618,7 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
 	d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
 
 	snprintf(wimax_dev->name, sizeof(wimax_dev->name),
-		 "i2400m-%s:%s", dev->bus->name, dev->bus_id);
+		 "i2400m-%s:%s", dev->bus->name, dev_name(dev));
 
 	i2400m->bm_cmd_buf = kzalloc(I2400M_BM_CMD_BUF_SIZE, GFP_KERNEL);
 	if (i2400m->bm_cmd_buf == NULL) {
diff --git a/drivers/net/wimax/i2400m/usb-notif.c b/drivers/net/wimax/i2400m/usb-notif.c
index 9702c22b2497..6add27c3f35c 100644
--- a/drivers/net/wimax/i2400m/usb-notif.c
+++ b/drivers/net/wimax/i2400m/usb-notif.c
@@ -102,7 +102,7 @@ int i2400mu_notification_grok(struct i2400mu *i2400mu, const void *buf,
 		dev_err(dev, "HW BUG? Unknown/unexpected data in notification "
 			"message (%zu bytes)\n", buf_len);
 		snprintf(prefix, sizeof(prefix), "%s %s: ",
-			 dev_driver_string(dev) , dev->bus_id);
+			 dev_driver_string(dev), dev_name(dev));
 		if (buf_len > 64) {
 			print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET,
 				       8, 4, buf, 64, 0);
diff --git a/include/linux/wimax/debug.h b/include/linux/wimax/debug.h
index ba0c49399a83..c703e0340423 100644
--- a/include/linux/wimax/debug.h
+++ b/include/linux/wimax/debug.h
@@ -178,7 +178,7 @@ void __d_head(char *head, size_t head_size,
 		WARN_ON(1);
 	} else
 		snprintf(head, head_size, "%s %s: ",
-			 dev_driver_string(dev), dev->bus_id);
+			 dev_driver_string(dev), dev_name(dev));
 }
 
 
-- 
cgit v1.2.3


From fd5c565c0c04d2716cfdac3f1de3c2261d6a457d Mon Sep 17 00:00:00 2001
From: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Date: Sat, 28 Feb 2009 23:42:52 +0000
Subject: wimax/i2400m: support extended data RX protocol (no need to
 reallocate skbs)

Newer i2400m firmwares (>= v1.4) extend the data RX protocol so that
each packet has a 16 byte header. This header is mainly used to
implement host reordeing (which is addressed in later commits).

However, this header also allows us to overwrite it (once data has
been extracted) with an Ethernet header and deliver to the networking
stack without having to reallocate the skb (as it happened in fw <=
v1.3) to make room for it.

- control.c: indicate the device [dev_initialize()] that the driver
  wants to use the extended data RX protocol. Also involves adding the
  definition of the needed data types in include/linux/wimax/i2400m.h.

- rx.c: handle the new payload type for the extended RX data
  protocol. Prepares the skb for delivery to
  netdev.c:i2400m_net_erx().

- netdev.c: Introduce i2400m_net_erx() that adds the fake ethernet
  address to a prepared skb and delivers it to the networking
  stack.

- cleanup: in most instances in rx.c, the variable 'single' was
  renamed to 'single_last' for it better conveys its meaning.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wimax/i2400m/control.c |   9 +++
 drivers/net/wimax/i2400m/i2400m.h  |   2 +
 drivers/net/wimax/i2400m/netdev.c  | 104 +++++++++++++++++++++++++--------
 drivers/net/wimax/i2400m/rx.c      | 117 ++++++++++++++++++++++++++++++++++---
 include/linux/wimax/i2400m.h       |  35 +++++++++++
 5 files changed, 234 insertions(+), 33 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c
index c3968b240d69..4073c3e93bd4 100644
--- a/drivers/net/wimax/i2400m/control.c
+++ b/drivers/net/wimax/i2400m/control.c
@@ -1311,6 +1311,7 @@ int i2400m_dev_initialize(struct i2400m *i2400m)
 	struct device *dev = i2400m_dev(i2400m);
 	struct i2400m_tlv_config_idle_parameters idle_params;
 	struct i2400m_tlv_config_idle_timeout idle_timeout;
+	struct i2400m_tlv_config_d2h_data_format df;
 	const struct i2400m_tlv_hdr *args[9];
 	unsigned argc = 0;
 
@@ -1333,6 +1334,14 @@ int i2400m_dev_initialize(struct i2400m *i2400m)
 			args[argc++] = &idle_timeout.hdr;
 		}
 	}
+	if (i2400m_ge_v1_4(i2400m)) {
+		df.hdr.type =
+			cpu_to_le16(I2400M_TLV_CONFIG_D2H_DATA_FORMAT);
+		df.hdr.length = cpu_to_le16(
+			sizeof(df) - sizeof(df.hdr));
+		df.format = 1;
+		args[argc++] = &df.hdr;
+	}
 	result = i2400m_set_init_config(i2400m, args, argc);
 	if (result < 0)
 		goto error;
diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h
index 0c60d5c43007..125c30594e63 100644
--- a/drivers/net/wimax/i2400m/i2400m.h
+++ b/drivers/net/wimax/i2400m/i2400m.h
@@ -593,6 +593,8 @@ extern void i2400m_tx_release(struct i2400m *);
 
 extern void i2400m_net_rx(struct i2400m *, struct sk_buff *, unsigned,
 			  const void *, int);
+extern void i2400m_net_erx(struct i2400m *, struct sk_buff *,
+			   enum i2400m_cs);
 enum i2400m_pt;
 extern int i2400m_tx(struct i2400m *, const void *, size_t, enum i2400m_pt);
 
diff --git a/drivers/net/wimax/i2400m/netdev.c b/drivers/net/wimax/i2400m/netdev.c
index be8be4d0709c..2bdd0cdbb319 100644
--- a/drivers/net/wimax/i2400m/netdev.c
+++ b/drivers/net/wimax/i2400m/netdev.c
@@ -28,13 +28,12 @@
  * space and from the other side. The world is (sadly) configured to
  * take in only Ethernet devices...
  *
- * Because of this, currently there is an copy-each-rxed-packet
- * overhead on the RX path. Each IP packet has to be reallocated to
- * add an ethernet header (as there is no space in what we get from
- * the device). This is a known drawback and coming versions of the
- * device's firmware are being changed to add header space that can be
- * used to insert the ethernet header without having to reallocate and
- * copy.
+ * Because of this, when using firmwares <= v1.3, there is an
+ * copy-each-rxed-packet overhead on the RX path. Each IP packet has
+ * to be reallocated to add an ethernet header (as there is no space
+ * in what we get from the device). This is a known drawback and
+ * firmwares >= 1.4 add header space that can be used to insert the
+ * ethernet header without having to reallocate and copy.
  *
  * TX error handling is tricky; because we have to FIFO/queue the
  * buffers for transmission (as the hardware likes it aggregated), we
@@ -67,7 +66,9 @@
  * i2400m_tx_timeout      Called when the device times out
  *
  * i2400m_net_rx          Called by the RX code when a data frame is
- *                        available.
+ *                        available (firmware <= 1.3)
+ * i2400m_net_erx         Called by the RX code when a data frame is
+ *                        available (firmware >= 1.4).
  * i2400m_netdev_setup    Called to setup all the netdev stuff from
  *                        alloc_netdev.
  */
@@ -396,30 +397,18 @@ void i2400m_tx_timeout(struct net_device *net_dev)
  * Create a fake ethernet header
  *
  * For emulating an ethernet device, every received IP header has to
- * be prefixed with an ethernet header.
- *
- * What we receive has (potentially) many IP packets concatenated with
- * no ETH_HLEN bytes prefixed. Thus there is no space for an eth
- * header.
- *
- * We would have to reallocate or do ugly fragment tricks in order to
- * add it.
- *
- * But what we do is use the header space of the RX transaction
- * (*msg_hdr) as we don't need it anymore; then we'll point all the
- * data skbs there, as they share the same backing store.
- *
- * We only support IPv4 for v3 firmware.
+ * be prefixed with an ethernet header. Fake it with the given
+ * protocol.
  */
 static
 void i2400m_rx_fake_eth_header(struct net_device *net_dev,
-			       void *_eth_hdr)
+			       void *_eth_hdr, int protocol)
 {
 	struct ethhdr *eth_hdr = _eth_hdr;
 
 	memcpy(eth_hdr->h_dest, net_dev->dev_addr, sizeof(eth_hdr->h_dest));
 	memset(eth_hdr->h_source, 0, sizeof(eth_hdr->h_dest));
-	eth_hdr->h_proto = cpu_to_be16(ETH_P_IP);
+	eth_hdr->h_proto = cpu_to_be16(protocol);
 }
 
 
@@ -432,6 +421,13 @@ void i2400m_rx_fake_eth_header(struct net_device *net_dev,
  * @buf: pointer to the buffer containing the data
  * @len: buffer's length
  *
+ * This is only used now for the v1.3 firmware. It will be deprecated
+ * in >= 2.6.31.
+ *
+ * Note that due to firmware limitations, we don't have space to add
+ * an ethernet header, so we need to copy each packet. Firmware
+ * versions >= v1.4 fix this [see i2400m_net_erx()].
+ *
  * We just clone the skb and set it up so that it's skb->data pointer
  * points to "buf" and it's length.
  *
@@ -478,7 +474,7 @@ void i2400m_net_rx(struct i2400m *i2400m, struct sk_buff *skb_rx,
 		memcpy(skb_put(skb, buf_len), buf, buf_len);
 	}
 	i2400m_rx_fake_eth_header(i2400m->wimax_dev.net_dev,
-				  skb->data - ETH_HLEN);
+				  skb->data - ETH_HLEN, ETH_P_IP);
 	skb_set_mac_header(skb, -ETH_HLEN);
 	skb->dev = i2400m->wimax_dev.net_dev;
 	skb->protocol = htons(ETH_P_IP);
@@ -493,6 +489,64 @@ error_skb_realloc:
 		i2400m, buf, buf_len);
 }
 
+
+/*
+ * i2400m_net_erx - pass a network packet to the stack (extended version)
+ *
+ * @i2400m: device descriptor
+ * @skb: the skb where the packet is - the skb should be set to point
+ *     at the IP packet; this function will add ethernet headers if
+ *     needed.
+ * @cs: packet type
+ *
+ * This is only used now for firmware >= v1.4. Note it is quite
+ * similar to i2400m_net_rx() (used only for v1.3 firmware).
+ *
+ * This function is normally run from a thread context. However, we
+ * still use netif_rx() instead of netif_receive_skb() as was
+ * recommended in the mailing list. Reason is in some stress tests
+ * when sending/receiving a lot of data we seem to hit a softlock in
+ * the kernel's TCP implementation [aroudn tcp_delay_timer()]. Using
+ * netif_rx() took care of the issue.
+ *
+ * This is, of course, still open to do more research on why running
+ * with netif_receive_skb() hits this softlock. FIXME.
+ */
+void i2400m_net_erx(struct i2400m *i2400m, struct sk_buff *skb,
+		    enum i2400m_cs cs)
+{
+	struct net_device *net_dev = i2400m->wimax_dev.net_dev;
+	struct device *dev = i2400m_dev(i2400m);
+	int protocol;
+
+	d_fnstart(2, dev, "(i2400m %p skb %p [%zu] cs %d)\n",
+		  i2400m, skb, skb->len, cs);
+	switch(cs) {
+	case I2400M_CS_IPV4_0:
+	case I2400M_CS_IPV4:
+		protocol = ETH_P_IP;
+		i2400m_rx_fake_eth_header(i2400m->wimax_dev.net_dev,
+					  skb->data - ETH_HLEN, ETH_P_IP);
+		skb_set_mac_header(skb, -ETH_HLEN);
+		skb->dev = i2400m->wimax_dev.net_dev;
+		skb->protocol = htons(ETH_P_IP);
+		net_dev->stats.rx_packets++;
+		net_dev->stats.rx_bytes += skb->len;
+		break;
+	default:
+		dev_err(dev, "ERX: BUG? CS type %u unsupported\n", cs);
+		goto error;
+
+	}
+	d_printf(3, dev, "ERX: receiving %d bytes to the network stack\n",
+		 skb->len);
+	d_dump(4, dev, skb->data, skb->len);
+	netif_rx_ni(skb);	/* see notes in function header */
+error:
+	d_fnend(2, dev, "(i2400m %p skb %p [%zu] cs %d) = void\n",
+		i2400m, skb, skb->len, cs);
+}
+
 static const struct net_device_ops i2400m_netdev_ops = {
 	.ndo_open = i2400m_open,
 	.ndo_stop = i2400m_stop,
diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
index c62b8c564161..cd525066d4b7 100644
--- a/drivers/net/wimax/i2400m/rx.c
+++ b/drivers/net/wimax/i2400m/rx.c
@@ -69,6 +69,22 @@
  * See tx.c for a deeper description on alignment requirements and
  * other fun facts of it.
  *
+ * DATA PACKETS
+ *
+ * In firmwares <= v1.3, data packets have no header for RX, but they
+ * do for TX (currently unused).
+ *
+ * In firmware >= 1.4, RX packets have an extended header (16
+ * bytes). This header conveys information for management of host
+ * reordering of packets (the device offloads storage of the packets
+ * for reordering to the host).
+ *
+ * Currently this information is not used as the current code doesn't
+ * enable host reordering.
+ *
+ * The header is used as dummy space to emulate an ethernet header and
+ * thus be able to act as an ethernet device without having to reallocate.
+ *
  * ROADMAP
  *
  * i2400m_rx
@@ -76,6 +92,8 @@
  *   i2400m_rx_pl_descr_check
  *   i2400m_rx_payload
  *     i2400m_net_rx
+ *     i2400m_rx_edata
+ *       i2400m_net_erx
  *     i2400m_rx_ctl
  *       i2400m_msg_size_check
  *       i2400m_report_hook_work    [in a workqueue]
@@ -264,8 +282,6 @@ error_check:
 }
 
 
-
-
 /*
  * Receive and send up a trace
  *
@@ -314,32 +330,112 @@ error_check:
 	return;
 }
 
+/*
+ * Receive and send up an extended data packet
+ *
+ * @i2400m: device descriptor
+ * @skb_rx: skb that contains the extended data packet
+ * @single_last: 1 if the payload is the only one or the last one of
+ *     the skb.
+ * @payload: pointer to the packet's data inside the skb
+ * @size: size of the payload
+ *
+ * Starting in v1.4 of the i2400m's firmware, the device can send data
+ * packets to the host in an extended format that; this incudes a 16
+ * byte header (struct i2400m_pl_edata_hdr). Using this header's space
+ * we can fake ethernet headers for ethernet device emulation without
+ * having to copy packets around.
+ *
+ * This function handles said path.
+ */
+static
+void i2400m_rx_edata(struct i2400m *i2400m, struct sk_buff *skb_rx,
+		     unsigned single_last, const void *payload, size_t size)
+{
+	struct device *dev = i2400m_dev(i2400m);
+	const struct i2400m_pl_edata_hdr *hdr = payload;
+	struct net_device *net_dev = i2400m->wimax_dev.net_dev;
+	struct sk_buff *skb;
+	enum i2400m_cs cs;
+	unsigned reorder_needed;
+
+	d_fnstart(4, dev, "(i2400m %p skb_rx %p single %u payload %p "
+		  "size %zu)\n", i2400m, skb_rx, single_last, payload, size);
+	if (size < sizeof(*hdr)) {
+		dev_err(dev, "ERX: HW BUG? message with short header (%zu "
+			"vs %zu bytes expected)\n", size, sizeof(*hdr));
+		goto error;
+	}
+	reorder_needed = le32_to_cpu(hdr->reorder & I2400M_REORDER_NEEDED);
+	cs = hdr->cs;
+	if (reorder_needed) {
+		dev_err(dev, "ERX: HW BUG? reorder needed, it was disabled\n");
+		goto error;
+	}
+	/* ok, so now decide if we want to clone or reuse the skb,
+	 * pull and trim it so the beginning is the space for the eth
+	 * header and pass it to i2400m_net_erx() for the stack */
+	if (single_last) {
+		skb = skb_get(skb_rx);
+		d_printf(3, dev, "ERX: reusing single payload skb %p\n", skb);
+	} else {
+		skb = skb_clone(skb_rx, GFP_KERNEL);
+		d_printf(3, dev, "ERX: cloning %p\n", skb);
+		if (skb == NULL) {
+			dev_err(dev, "ERX: no memory to clone skb\n");
+			net_dev->stats.rx_dropped++;
+			goto error_skb_clone;
+		}
+	}
+	/* now we have to pull and trim so that the skb points to the
+	 * beginning of the IP packet; the netdev part will add the
+	 * ethernet header as needed. */
+	BUILD_BUG_ON(ETH_HLEN > sizeof(*hdr));
+	skb_pull(skb, payload + sizeof(*hdr) - (void *) skb->data);
+	skb_trim(skb, (void *) skb_end_pointer(skb) - payload + sizeof(*hdr));
+	i2400m_net_erx(i2400m, skb, cs);
+error_skb_clone:
+error:
+	d_fnend(4, dev, "(i2400m %p skb_rx %p single %u payload %p "
+		"size %zu) = void\n", i2400m, skb_rx, single_last, payload, size);
+	return;
+}
+
+
+
 
 /*
  * Act on a received payload
  *
  * @i2400m: device instance
  * @skb_rx: skb where the transaction was received
- * @single: 1 if there is only one payload, 0 otherwise
+ * @single_last: 1 this is the only payload or the last one (so the
+ *     skb can be reused instead of cloned).
  * @pld: payload descriptor
  * @payload: payload data
  *
  * Upon reception of a payload, look at its guts in the payload
- * descriptor and decide what to do with it.
+ * descriptor and decide what to do with it. If it is a single payload
+ * skb or if the last skb is a data packet, the skb will be referenced
+ * and modified (so it doesn't have to be cloned).
  */
 static
 void i2400m_rx_payload(struct i2400m *i2400m, struct sk_buff *skb_rx,
-		       unsigned single, const struct i2400m_pld *pld,
+		       unsigned single_last, const struct i2400m_pld *pld,
 		       const void *payload)
 {
 	struct device *dev = i2400m_dev(i2400m);
 	size_t pl_size = i2400m_pld_size(pld);
 	enum i2400m_pt pl_type = i2400m_pld_type(pld);
 
+	d_printf(7, dev, "RX: received payload type %u, %zu bytes\n",
+		 pl_type, pl_size);
+	d_dump(8, dev, payload, pl_size);
+
 	switch (pl_type) {
 	case I2400M_PT_DATA:
 		d_printf(3, dev, "RX: data payload %zu bytes\n", pl_size);
-		i2400m_net_rx(i2400m, skb_rx, single, payload, pl_size);
+		i2400m_net_rx(i2400m, skb_rx, single_last, payload, pl_size);
 		break;
 	case I2400M_PT_CTRL:
 		i2400m_rx_ctl(i2400m, skb_rx, payload, pl_size);
@@ -347,6 +443,10 @@ void i2400m_rx_payload(struct i2400m *i2400m, struct sk_buff *skb_rx,
 	case I2400M_PT_TRACE:
 		i2400m_rx_trace(i2400m, payload, pl_size);
 		break;
+	case I2400M_PT_EDATA:
+		d_printf(3, dev, "ERX: data payload %zu bytes\n", pl_size);
+		i2400m_rx_edata(i2400m, skb_rx, single_last, payload, pl_size);
+		break;
 	default:	/* Anything else shouldn't come to the host */
 		if (printk_ratelimit())
 			dev_err(dev, "RX: HW BUG? unexpected payload type %u\n",
@@ -474,7 +574,7 @@ int i2400m_rx(struct i2400m *i2400m, struct sk_buff *skb)
 	const struct i2400m_msg_hdr *msg_hdr;
 	size_t pl_itr, pl_size, skb_len;
 	unsigned long flags;
-	unsigned num_pls;
+	unsigned num_pls, single_last;
 
 	skb_len = skb->len;
 	d_fnstart(4, dev, "(i2400m %p skb %p [size %zu])\n",
@@ -503,7 +603,8 @@ int i2400m_rx(struct i2400m *i2400m, struct sk_buff *skb)
 						  pl_itr, skb->len);
 		if (result < 0)
 			goto error_pl_descr_check;
-		i2400m_rx_payload(i2400m, skb, num_pls == 1, &msg_hdr->pld[i],
+		single_last = num_pls == 1 || i == num_pls - 1;
+		i2400m_rx_payload(i2400m, skb, single_last, &msg_hdr->pld[i],
 				  skb->data + pl_itr);
 		pl_itr += ALIGN(pl_size, I2400M_PL_PAD);
 		cond_resched();		/* Don't monopolize */
diff --git a/include/linux/wimax/i2400m.h b/include/linux/wimax/i2400m.h
index 686eeb2b9704..ad36e073a70c 100644
--- a/include/linux/wimax/i2400m.h
+++ b/include/linux/wimax/i2400m.h
@@ -207,6 +207,7 @@ enum i2400m_pt {
 	I2400M_PT_TRACE,	/* For device debug */
 	I2400M_PT_RESET_WARM,	/* device reset */
 	I2400M_PT_RESET_COLD,	/* USB[transport] reset, like reconnect */
+	I2400M_PT_EDATA,	/* Extended RX data */
 	I2400M_PT_ILLEGAL
 };
 
@@ -221,6 +222,32 @@ struct i2400m_pl_data_hdr {
 } __attribute__((packed));
 
 
+/*
+ * Payload for an extended data packet
+ *
+ * New in v1.4
+ *
+ * @cs: the type of data in the packet, as defined per (802.16e
+ *     T11.13.19.1). Currently only 2 (IPv4 packet) supported.
+ *
+ * This is prefixed to each and every INCOMING DATA packet.
+ */
+struct i2400m_pl_edata_hdr {
+	__le32 reorder;
+	__u8 cs;
+	__u8 reserved[11];
+} __attribute__((packed));
+
+enum i2400m_cs {
+	I2400M_CS_IPV4_0 = 0,
+	I2400M_CS_IPV4 = 2,
+};
+
+enum i2400m_reorder {
+	I2400M_REORDER_NEEDED     = 0x01,
+};
+
+
 /* Misc constants */
 enum {
 	I2400M_PL_PAD = 16,	/* Payload data size alignment */
@@ -382,6 +409,7 @@ enum i2400m_tlv {
 	I2400M_TLV_DEVICE_RESET_TYPE = 132,
 	I2400M_TLV_CONFIG_IDLE_PARAMETERS = 601,
 	I2400M_TLV_CONFIG_IDLE_TIMEOUT = 611,
+	I2400M_TLV_CONFIG_D2H_DATA_FORMAT = 614,
 };
 
 
@@ -518,5 +546,12 @@ struct i2400m_tlv_config_idle_timeout {
 			 * 0 disabled */
 } __attribute__((packed));
 
+/* New in v1.4 -- for backward compat, will be removed */
+struct i2400m_tlv_config_d2h_data_format {
+	struct i2400m_tlv_hdr hdr;
+	__u8 format; 		/* 0 old format, 1 enhanced */
+	__u8 reserved[3];
+} __attribute__((packed));
+
 
 #endif /* #ifndef __LINUX__WIMAX__I2400M_H__ */
-- 
cgit v1.2.3


From c747583d19d5d5147a9f0eae480c1fdbc84c4252 Mon Sep 17 00:00:00 2001
From: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Date: Sat, 28 Feb 2009 23:42:54 +0000
Subject: wimax/i2400m: implement RX reorder support

Allow the device to give the driver RX data with reorder information.

When that is done, the device will indicate the driver if a packet has
to be held in a (sorted) queue. It will also tell the driver when held
packets have to be released to the OS.

This is done to improve the WiMAX-protocol level retransmission
support when missing frames are detected.

The code docs provide details about the implementation.

In general, this just hooks into the RX path in rx.c; if a packet with
the reorder bit in the RX header is detected, the reorder information
in the header is extracted and one of the four main reorder operations
are executed. In one case (queue) no packet will be delivered to the
networking stack, just queued, whereas in the others (reset, update_ws
and queue_update_ws), queued packet might be delivered depending on
the window start for the specific queue.

The modifications to files other than rx.c are:

- control.c: during device initialization, enable reordering support
  if the rx_reorder_disabled module parameter is not enabled

- driver.c: expose a rx_reorder_disable module parameter and call
  i2400m_rx_setup/release() to initialize/shutdown RX reorder
  support.

- i2400m.h: introduce members in 'struct i2400m' needed for
  implementing reorder support.

- linux/i2400m.h: introduce TLVs, commands and constant definitions
  related to RX reorder

Last but not least, the rx reorder code includes an small circular log
where the last N reorder operations are recorded to be displayed in
case of inconsistency. Otherwise diagnosing issues would be almost
impossible.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wimax/i2400m/control.c |  14 +
 drivers/net/wimax/i2400m/driver.c  |  11 +
 drivers/net/wimax/i2400m/i2400m.h  |  19 +-
 drivers/net/wimax/i2400m/rx.c      | 677 +++++++++++++++++++++++++++++++++++--
 include/linux/wimax/i2400m.h       |  32 +-
 5 files changed, 723 insertions(+), 30 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c
index 4073c3e93bd4..b3cadb626fe0 100644
--- a/drivers/net/wimax/i2400m/control.c
+++ b/drivers/net/wimax/i2400m/control.c
@@ -1312,10 +1312,12 @@ int i2400m_dev_initialize(struct i2400m *i2400m)
 	struct i2400m_tlv_config_idle_parameters idle_params;
 	struct i2400m_tlv_config_idle_timeout idle_timeout;
 	struct i2400m_tlv_config_d2h_data_format df;
+	struct i2400m_tlv_config_dl_host_reorder dlhr;
 	const struct i2400m_tlv_hdr *args[9];
 	unsigned argc = 0;
 
 	d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
+	/* Disable idle mode? (enabled by default) */
 	if (i2400m_idle_mode_disabled) {
 		if (i2400m_le_v1_3(i2400m)) {
 			idle_params.hdr.type =
@@ -1335,12 +1337,24 @@ int i2400m_dev_initialize(struct i2400m *i2400m)
 		}
 	}
 	if (i2400m_ge_v1_4(i2400m)) {
+		/* Enable extended RX data format? */
 		df.hdr.type =
 			cpu_to_le16(I2400M_TLV_CONFIG_D2H_DATA_FORMAT);
 		df.hdr.length = cpu_to_le16(
 			sizeof(df) - sizeof(df.hdr));
 		df.format = 1;
 		args[argc++] = &df.hdr;
+
+		/* Enable RX data reordering?
+		 * (switch flipped in rx.c:i2400m_rx_setup() after fw upload) */
+		if (i2400m->rx_reorder) {
+			dlhr.hdr.type =
+				cpu_to_le16(I2400M_TLV_CONFIG_DL_HOST_REORDER);
+			dlhr.hdr.length = cpu_to_le16(
+				sizeof(dlhr) - sizeof(dlhr.hdr));
+			dlhr.reorder = 1;
+			args[argc++] = &dlhr.hdr;
+		}
 	}
 	result = i2400m_set_init_config(i2400m, args, argc);
 	if (result < 0)
diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c
index e4f1ce5bc294..07a54bad237b 100644
--- a/drivers/net/wimax/i2400m/driver.c
+++ b/drivers/net/wimax/i2400m/driver.c
@@ -76,6 +76,11 @@ MODULE_PARM_DESC(idle_mode_disabled,
 		 "If true, the device will not enable idle mode negotiation "
 		 "with the base station (when connected) to save power.");
 
+int i2400m_rx_reorder_disabled;	/* 0 (rx reorder enabled) by default */
+module_param_named(rx_reorder_disabled, i2400m_rx_reorder_disabled, int, 0644);
+MODULE_PARM_DESC(rx_reorder_disabled,
+		 "If true, RX reordering will be disabled.");
+
 /**
  * i2400m_queue_work - schedule work on a i2400m's queue
  *
@@ -396,6 +401,9 @@ retry:
 	result = i2400m_tx_setup(i2400m);
 	if (result < 0)
 		goto error_tx_setup;
+	result = i2400m_rx_setup(i2400m);
+	if (result < 0)
+		goto error_rx_setup;
 	result = i2400m->bus_dev_start(i2400m);
 	if (result < 0)
 		goto error_bus_dev_start;
@@ -430,6 +438,8 @@ error_fw_check:
 error_create_workqueue:
 	i2400m->bus_dev_stop(i2400m);
 error_bus_dev_start:
+	i2400m_rx_release(i2400m);
+error_rx_setup:
 	i2400m_tx_release(i2400m);
 error_tx_setup:
 error_bootstrap:
@@ -477,6 +487,7 @@ void __i2400m_dev_stop(struct i2400m *i2400m)
 	i2400m->ready = 0;
 	destroy_workqueue(i2400m->work_queue);
 	i2400m->bus_dev_stop(i2400m);
+	i2400m_rx_release(i2400m);
 	i2400m_tx_release(i2400m);
 	wimax_state_change(wimax_dev, WIMAX_ST_DOWN);
 	d_fnend(3, dev, "(i2400m %p) = 0\n", i2400m);
diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h
index 125c30594e63..3ae2df38b59a 100644
--- a/drivers/net/wimax/i2400m/i2400m.h
+++ b/drivers/net/wimax/i2400m/i2400m.h
@@ -174,6 +174,7 @@ enum i2400m_reset_type {
 };
 
 struct i2400m_reset_ctx;
+struct i2400m_roq;
 
 /**
  * struct i2400m - descriptor for an Intel 2400m
@@ -257,6 +258,9 @@ struct i2400m_reset_ctx;
  *     force this to be the first field so that we can get from
  *     netdev_priv() the right pointer.
  *
+ * @rx_reorder: 1 if RX reordering is enabled; this can only be
+ *     set at probe time.
+ *
  * @state: device's state (as reported by it)
  *
  * @state_wq: waitqueue that is woken up whenever the state changes
@@ -313,6 +317,12 @@ struct i2400m_reset_ctx;
  *
  * @rx_size_max: buggest RX message received.
  *
+ * @rx_roq: RX ReOrder queues. (fw >= v1.4) When packets are received
+ *     out of order, the device will ask the driver to hold certain
+ *     packets until the ones that are received out of order can be
+ *     delivered. Then the driver can release them to the host. See
+ *     drivers/net/i2400m/rx.c for details.
+ *
  * @init_mutex: Mutex used for serializing the device bringup
  *     sequence; this way if the device reboots in the middle, we
  *     don't try to do a bringup again while we are tearing down the
@@ -377,6 +387,7 @@ struct i2400m {
 	unsigned boot_mode:1;		/* is the device in boot mode? */
 	unsigned sboot:1;		/* signed or unsigned fw boot */
 	unsigned ready:1;		/* all probing steps done */
+	unsigned rx_reorder:1;		/* RX reorder is enabled */
 	u8 trace_msg_from_user;		/* echo rx msgs to 'trace' pipe */
 					/* typed u8 so debugfs/u8 can tweak */
 	enum i2400m_system_state state;
@@ -405,10 +416,11 @@ struct i2400m {
 	unsigned tx_pl_num, tx_pl_max, tx_pl_min,
 		tx_num, tx_size_acc, tx_size_min, tx_size_max;
 
-	/* RX stats */
+	/* RX stuff */
 	spinlock_t rx_lock;		/* protect RX state */
 	unsigned rx_pl_num, rx_pl_max, rx_pl_min,
 		rx_num, rx_size_acc, rx_size_min, rx_size_max;
+	struct i2400m_roq *rx_roq;	/* not under rx_lock! */
 
 	struct mutex msg_mutex;		/* serialize command execution */
 	struct completion msg_completion;
@@ -442,6 +454,7 @@ void i2400m_init(struct i2400m *i2400m)
 	wimax_dev_init(&i2400m->wimax_dev);
 
 	i2400m->boot_mode = 1;
+	i2400m->rx_reorder = 1;
 	init_waitqueue_head(&i2400m->state_wq);
 
 	spin_lock_init(&i2400m->tx_lock);
@@ -591,6 +604,9 @@ extern int i2400m_tx_setup(struct i2400m *);
 extern void i2400m_wake_tx_work(struct work_struct *);
 extern void i2400m_tx_release(struct i2400m *);
 
+extern int i2400m_rx_setup(struct i2400m *);
+extern void i2400m_rx_release(struct i2400m *);
+
 extern void i2400m_net_rx(struct i2400m *, struct sk_buff *, unsigned,
 			  const void *, int);
 extern void i2400m_net_erx(struct i2400m *, struct sk_buff *,
@@ -788,6 +804,7 @@ void __i2400m_msleep(unsigned ms)
 /* Module parameters */
 
 extern int i2400m_idle_mode_disabled;
+extern int i2400m_rx_reorder_disabled;
 
 
 #endif /* #ifndef __I2400M_H__ */
diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
index cd525066d4b7..02419bfd64b5 100644
--- a/drivers/net/wimax/i2400m/rx.c
+++ b/drivers/net/wimax/i2400m/rx.c
@@ -39,7 +39,7 @@
  *  - Use skb_clone(), break up processing in chunks
  *  - Split transport/device specific
  *  - Make buffer size dynamic to exert less memory pressure
- *
+ *  - RX reorder support
  *
  * This handles the RX path.
  *
@@ -77,14 +77,42 @@
  * In firmware >= 1.4, RX packets have an extended header (16
  * bytes). This header conveys information for management of host
  * reordering of packets (the device offloads storage of the packets
- * for reordering to the host).
- *
- * Currently this information is not used as the current code doesn't
- * enable host reordering.
+ * for reordering to the host). Read below for more information.
  *
  * The header is used as dummy space to emulate an ethernet header and
  * thus be able to act as an ethernet device without having to reallocate.
  *
+ * DATA RX REORDERING
+ *
+ * Starting in firmware v1.4, the device can deliver packets for
+ * delivery with special reordering information; this allows it to
+ * more effectively do packet management when some frames were lost in
+ * the radio traffic.
+ *
+ * Thus, for RX packets that come out of order, the device gives the
+ * driver enough information to queue them properly and then at some
+ * point, the signal to deliver the whole (or part) of the queued
+ * packets to the networking stack. There are 16 such queues.
+ *
+ * This only happens when a packet comes in with the "need reorder"
+ * flag set in the RX header. When such bit is set, the following
+ * operations might be indicated:
+ *
+ *  - reset queue: send all queued packets to the OS
+ *
+ *  - queue: queue a packet
+ *
+ *  - update ws: update the queue's window start and deliver queued
+ *    packets that meet the criteria
+ *
+ *  - queue & update ws: queue a packet, update the window start and
+ *    deliver queued packets that meet the criteria
+ *
+ * (delivery criteria: the packet's [normalized] sequence number is
+ * lower than the new [normalized] window start).
+ *
+ * See the i2400m_roq_*() functions for details.
+ *
  * ROADMAP
  *
  * i2400m_rx
@@ -94,6 +122,17 @@
  *     i2400m_net_rx
  *     i2400m_rx_edata
  *       i2400m_net_erx
+ *       i2400m_roq_reset
+ *         i2400m_net_erx
+ *       i2400m_roq_queue
+ *         __i2400m_roq_queue
+ *       i2400m_roq_update_ws
+ *         __i2400m_roq_update_ws
+ *           i2400m_net_erx
+ *       i2400m_roq_queue_update_ws
+ *         __i2400m_roq_queue
+ *         __i2400m_roq_update_ws
+ *           i2400m_net_erx
  *     i2400m_rx_ctl
  *       i2400m_msg_size_check
  *       i2400m_report_hook_work    [in a workqueue]
@@ -330,6 +369,469 @@ error_check:
 	return;
 }
 
+
+/*
+ * Reorder queue data stored on skb->cb while the skb is queued in the
+ * reorder queues.
+ */
+struct i2400m_roq_data {
+	unsigned sn;		/* Serial number for the skb */
+	enum i2400m_cs cs;	/* packet type for the skb */
+};
+
+
+/*
+ * ReOrder Queue
+ *
+ * @ws: Window Start; sequence number where the current window start
+ *     is for this queue
+ * @queue: the skb queue itself
+ * @log: circular ring buffer used to log information about the
+ *     reorder process in this queue that can be displayed in case of
+ *     error to help diagnose it.
+ *
+ * This is the head for a list of skbs. In the skb->cb member of the
+ * skb when queued here contains a 'struct i2400m_roq_data' were we
+ * store the sequence number (sn) and the cs (packet type) coming from
+ * the RX payload header from the device.
+ */
+struct i2400m_roq
+{
+	unsigned ws;
+	struct sk_buff_head queue;
+	struct i2400m_roq_log *log;
+};
+
+
+static
+void __i2400m_roq_init(struct i2400m_roq *roq)
+{
+	roq->ws = 0;
+	skb_queue_head_init(&roq->queue);
+}
+
+
+static
+unsigned __i2400m_roq_index(struct i2400m *i2400m, struct i2400m_roq *roq)
+{
+	return ((unsigned long) roq - (unsigned long) i2400m->rx_roq)
+		/ sizeof(*roq);
+}
+
+
+/*
+ * Normalize a sequence number based on the queue's window start
+ *
+ * nsn = (sn - ws) % 2048
+ *
+ * Note that if @sn < @roq->ws, we still need a positive number; %'s
+ * sign is implementation specific, so we normalize it by adding 2048
+ * to bring it to be positive.
+ */
+static
+unsigned __i2400m_roq_nsn(struct i2400m_roq *roq, unsigned sn)
+{
+	int r;
+	r =  ((int) sn - (int) roq->ws) % 2048;
+	if (r < 0)
+		r += 2048;
+	return r;
+}
+
+
+/*
+ * Circular buffer to keep the last N reorder operations
+ *
+ * In case something fails, dumb then to try to come up with what
+ * happened.
+ */
+enum {
+	I2400M_ROQ_LOG_LENGTH = 32,
+};
+
+struct i2400m_roq_log {
+	struct i2400m_roq_log_entry {
+		enum i2400m_ro_type type;
+		unsigned ws, count, sn, nsn, new_ws;
+	} entry[I2400M_ROQ_LOG_LENGTH];
+	unsigned in, out;
+};
+
+
+/* Print a log entry */
+static
+void i2400m_roq_log_entry_print(struct i2400m *i2400m, unsigned index,
+				unsigned e_index,
+				struct i2400m_roq_log_entry *e)
+{
+	struct device *dev = i2400m_dev(i2400m);
+
+	switch(e->type) {
+	case I2400M_RO_TYPE_RESET:
+		dev_err(dev, "q#%d reset           ws %u cnt %u sn %u/%u"
+			" - new nws %u\n",
+			index, e->ws, e->count, e->sn, e->nsn, e->new_ws);
+		break;
+	case I2400M_RO_TYPE_PACKET:
+		dev_err(dev, "q#%d queue           ws %u cnt %u sn %u/%u\n",
+			index, e->ws, e->count, e->sn, e->nsn);
+		break;
+	case I2400M_RO_TYPE_WS:
+		dev_err(dev, "q#%d update_ws       ws %u cnt %u sn %u/%u"
+			" - new nws %u\n",
+			index, e->ws, e->count, e->sn, e->nsn, e->new_ws);
+		break;
+	case I2400M_RO_TYPE_PACKET_WS:
+		dev_err(dev, "q#%d queue_update_ws ws %u cnt %u sn %u/%u"
+			" - new nws %u\n",
+			index, e->ws, e->count, e->sn, e->nsn, e->new_ws);
+		break;
+	default:
+		dev_err(dev, "q#%d BUG? entry %u - unknown type %u\n",
+			index, e_index, e->type);
+		break;
+	}
+}
+
+
+static
+void i2400m_roq_log_add(struct i2400m *i2400m,
+			struct i2400m_roq *roq, enum i2400m_ro_type type,
+			unsigned ws, unsigned count, unsigned sn,
+			unsigned nsn, unsigned new_ws)
+{
+	struct i2400m_roq_log_entry *e;
+	unsigned cnt_idx;
+	int index = __i2400m_roq_index(i2400m, roq);
+
+	/* if we run out of space, we eat from the end */
+	if (roq->log->in - roq->log->out == I2400M_ROQ_LOG_LENGTH)
+		roq->log->out++;
+	cnt_idx = roq->log->in++ % I2400M_ROQ_LOG_LENGTH;
+	e = &roq->log->entry[cnt_idx];
+
+	e->type = type;
+	e->ws = ws;
+	e->count = count;
+	e->sn = sn;
+	e->nsn = nsn;
+	e->new_ws = new_ws;
+
+	if (d_test(1))
+		i2400m_roq_log_entry_print(i2400m, index, cnt_idx, e);
+}
+
+
+/* Dump all the entries in the FIFO and reinitialize it */
+static
+void i2400m_roq_log_dump(struct i2400m *i2400m, struct i2400m_roq *roq)
+{
+	unsigned cnt, cnt_idx;
+	struct i2400m_roq_log_entry *e;
+	int index = __i2400m_roq_index(i2400m, roq);
+
+	BUG_ON(roq->log->out > roq->log->in);
+	for (cnt = roq->log->out; cnt < roq->log->in; cnt++) {
+		cnt_idx = cnt % I2400M_ROQ_LOG_LENGTH;
+		e = &roq->log->entry[cnt_idx];
+		i2400m_roq_log_entry_print(i2400m, index, cnt_idx, e);
+		memset(e, 0, sizeof(*e));
+	}
+	roq->log->in = roq->log->out = 0;
+}
+
+
+/*
+ * Backbone for the queuing of an skb (by normalized sequence number)
+ *
+ * @i2400m: device descriptor
+ * @roq: reorder queue where to add
+ * @skb: the skb to add
+ * @sn: the sequence number of the skb
+ * @nsn: the normalized sequence number of the skb (pre-computed by the
+ *     caller from the @sn and @roq->ws).
+ *
+ * We try first a couple of quick cases:
+ *
+ *   - the queue is empty
+ *   - the skb would be appended to the queue
+ *
+ * These will be the most common operations.
+ *
+ * If these fail, then we have to do a sorted insertion in the queue,
+ * which is the slowest path.
+ *
+ * We don't have to acquire a reference count as we are going to own it.
+ */
+static
+void __i2400m_roq_queue(struct i2400m *i2400m, struct i2400m_roq *roq,
+			struct sk_buff *skb, unsigned sn, unsigned nsn)
+{
+	struct device *dev = i2400m_dev(i2400m);
+	struct sk_buff *skb_itr;
+	struct i2400m_roq_data *roq_data_itr, *roq_data;
+	unsigned nsn_itr;
+
+	d_fnstart(4, dev, "(i2400m %p roq %p skb %p sn %u nsn %u)\n",
+		  i2400m, roq, skb, sn, nsn);
+
+	roq_data = (struct i2400m_roq_data *) &skb->cb;
+	BUILD_BUG_ON(sizeof(*roq_data) > sizeof(skb->cb));
+	roq_data->sn = sn;
+	d_printf(3, dev, "ERX: roq %p [ws %u] nsn %d sn %u\n",
+		 roq, roq->ws, nsn, roq_data->sn);
+
+	/* Queues will be empty on not-so-bad environments, so try
+	 * that first */
+	if (skb_queue_empty(&roq->queue)) {
+		d_printf(2, dev, "ERX: roq %p - first one\n", roq);
+		__skb_queue_head(&roq->queue, skb);
+		goto out;
+	}
+	/* Now try append, as most of the operations will be that */
+	skb_itr = skb_peek_tail(&roq->queue);
+	roq_data_itr = (struct i2400m_roq_data *) &skb_itr->cb;
+	nsn_itr = __i2400m_roq_nsn(roq, roq_data_itr->sn);
+	/* NSN bounds assumed correct (checked when it was queued) */
+	if (nsn >= nsn_itr) {
+		d_printf(2, dev, "ERX: roq %p - appended after %p (nsn %d sn %u)\n",
+			 roq, skb_itr, nsn_itr, roq_data_itr->sn);
+		__skb_queue_tail(&roq->queue, skb);
+		goto out;
+	}
+	/* None of the fast paths option worked. Iterate to find the
+	 * right spot where to insert the packet; we know the queue is
+	 * not empty, so we are not the first ones; we also know we
+	 * are not going to be the last ones. The list is sorted, so
+	 * we have to insert before the the first guy with an nsn_itr
+	 * greater that our nsn. */
+	skb_queue_walk(&roq->queue, skb_itr) {
+		roq_data_itr = (struct i2400m_roq_data *) &skb_itr->cb;
+		nsn_itr = __i2400m_roq_nsn(roq, roq_data_itr->sn);
+		/* NSN bounds assumed correct (checked when it was queued) */
+		if (nsn_itr > nsn) {
+			d_printf(2, dev, "ERX: roq %p - queued before %p "
+				 "(nsn %d sn %u)\n", roq, skb_itr, nsn_itr,
+				 roq_data_itr->sn);
+			__skb_queue_before(&roq->queue, skb_itr, skb);
+			goto out;
+		}
+	}
+	/* If we get here, that is VERY bad -- print info to help
+	 * diagnose and crash it */
+	dev_err(dev, "SW BUG? failed to insert packet\n");
+	dev_err(dev, "ERX: roq %p [ws %u] skb %p nsn %d sn %u\n",
+		roq, roq->ws, skb, nsn, roq_data->sn);
+	skb_queue_walk(&roq->queue, skb_itr) {
+		roq_data_itr = (struct i2400m_roq_data *) &skb_itr->cb;
+		nsn_itr = __i2400m_roq_nsn(roq, roq_data_itr->sn);
+		/* NSN bounds assumed correct (checked when it was queued) */
+		dev_err(dev, "ERX: roq %p skb_itr %p nsn %d sn %u\n",
+			roq, skb_itr, nsn_itr, roq_data_itr->sn);
+	}
+	BUG();
+out:
+	d_fnend(4, dev, "(i2400m %p roq %p skb %p sn %u nsn %d) = void\n",
+		i2400m, roq, skb, sn, nsn);
+	return;
+}
+
+
+/*
+ * Backbone for the update window start operation
+ *
+ * @i2400m: device descriptor
+ * @roq: Reorder queue
+ * @sn: New sequence number
+ *
+ * Updates the window start of a queue; when doing so, it must deliver
+ * to the networking stack all the queued skb's whose normalized
+ * sequence number is lower than the new normalized window start.
+ */
+static
+unsigned __i2400m_roq_update_ws(struct i2400m *i2400m, struct i2400m_roq *roq,
+				unsigned sn)
+{
+	struct device *dev = i2400m_dev(i2400m);
+	struct sk_buff *skb_itr, *tmp_itr;
+	struct i2400m_roq_data *roq_data_itr;
+	unsigned new_nws, nsn_itr;
+
+	new_nws = __i2400m_roq_nsn(roq, sn);
+	if (unlikely(new_nws >= 1024) && d_test(1)) {
+		dev_err(dev, "SW BUG? __update_ws new_nws %u (sn %u ws %u)\n",
+			new_nws, sn, roq->ws);
+		WARN_ON(1);
+		i2400m_roq_log_dump(i2400m, roq);
+	}
+	skb_queue_walk_safe(&roq->queue, skb_itr, tmp_itr) {
+		roq_data_itr = (struct i2400m_roq_data *) &skb_itr->cb;
+		nsn_itr = __i2400m_roq_nsn(roq, roq_data_itr->sn);
+		/* NSN bounds assumed correct (checked when it was queued) */
+		if (nsn_itr < new_nws) {
+			d_printf(2, dev, "ERX: roq %p - release skb %p "
+				 "(nsn %u/%u new nws %u)\n",
+				 roq, skb_itr, nsn_itr, roq_data_itr->sn,
+				 new_nws);
+			__skb_unlink(skb_itr, &roq->queue);
+			i2400m_net_erx(i2400m, skb_itr, roq_data_itr->cs);
+		}
+		else
+			break;	/* rest of packets all nsn_itr > nws */
+	}
+	roq->ws = sn;
+	return new_nws;
+}
+
+
+/*
+ * Reset a queue
+ *
+ * @i2400m: device descriptor
+ * @cin: Queue Index
+ *
+ * Deliver all the packets and reset the window-start to zero. Name is
+ * kind of misleading.
+ */
+static
+void i2400m_roq_reset(struct i2400m *i2400m, struct i2400m_roq *roq)
+{
+	struct device *dev = i2400m_dev(i2400m);
+	struct sk_buff *skb_itr, *tmp_itr;
+	struct i2400m_roq_data *roq_data_itr;
+
+	d_fnstart(2, dev, "(i2400m %p roq %p)\n", i2400m, roq);
+	i2400m_roq_log_add(i2400m, roq, I2400M_RO_TYPE_RESET,
+			     roq->ws, skb_queue_len(&roq->queue),
+			     ~0, ~0, 0);
+	skb_queue_walk_safe(&roq->queue, skb_itr, tmp_itr) {
+		roq_data_itr = (struct i2400m_roq_data *) &skb_itr->cb;
+		d_printf(2, dev, "ERX: roq %p - release skb %p (sn %u)\n",
+			 roq, skb_itr, roq_data_itr->sn);
+		__skb_unlink(skb_itr, &roq->queue);
+		i2400m_net_erx(i2400m, skb_itr, roq_data_itr->cs);
+	}
+	roq->ws = 0;
+	d_fnend(2, dev, "(i2400m %p roq %p) = void\n", i2400m, roq);
+	return;
+}
+
+
+/*
+ * Queue a packet
+ *
+ * @i2400m: device descriptor
+ * @cin: Queue Index
+ * @skb: containing the packet data
+ * @fbn: First block number of the packet in @skb
+ * @lbn: Last block number of the packet in @skb
+ *
+ * The hardware is asking the driver to queue a packet for later
+ * delivery to the networking stack.
+ */
+static
+void i2400m_roq_queue(struct i2400m *i2400m, struct i2400m_roq *roq,
+		      struct sk_buff * skb, unsigned lbn)
+{
+	struct device *dev = i2400m_dev(i2400m);
+	unsigned nsn, len;
+
+	d_fnstart(2, dev, "(i2400m %p roq %p skb %p lbn %u) = void\n",
+		  i2400m, roq, skb, lbn);
+	len = skb_queue_len(&roq->queue);
+	nsn = __i2400m_roq_nsn(roq, lbn);
+	if (unlikely(nsn >= 1024)) {
+		dev_err(dev, "SW BUG? queue nsn %d (lbn %u ws %u)\n",
+			nsn, lbn, roq->ws);
+		i2400m_roq_log_dump(i2400m, roq);
+		i2400m->bus_reset(i2400m, I2400M_RT_WARM);
+	} else {
+		__i2400m_roq_queue(i2400m, roq, skb, lbn, nsn);
+		i2400m_roq_log_add(i2400m, roq, I2400M_RO_TYPE_PACKET,
+				     roq->ws, len, lbn, nsn, ~0);
+	}
+	d_fnend(2, dev, "(i2400m %p roq %p skb %p lbn %u) = void\n",
+		i2400m, roq, skb, lbn);
+	return;
+}
+
+
+/*
+ * Update the window start in a reorder queue and deliver all skbs
+ * with a lower window start
+ *
+ * @i2400m: device descriptor
+ * @roq: Reorder queue
+ * @sn: New sequence number
+ */
+static
+void i2400m_roq_update_ws(struct i2400m *i2400m, struct i2400m_roq *roq,
+			  unsigned sn)
+{
+	struct device *dev = i2400m_dev(i2400m);
+	unsigned old_ws, nsn, len;
+
+	d_fnstart(2, dev, "(i2400m %p roq %p sn %u)\n", i2400m, roq, sn);
+	old_ws = roq->ws;
+	len = skb_queue_len(&roq->queue);
+	nsn = __i2400m_roq_update_ws(i2400m, roq, sn);
+	i2400m_roq_log_add(i2400m, roq, I2400M_RO_TYPE_WS,
+			     old_ws, len, sn, nsn, roq->ws);
+	d_fnstart(2, dev, "(i2400m %p roq %p sn %u) = void\n", i2400m, roq, sn);
+	return;
+}
+
+
+/*
+ * Queue a packet and update the window start
+ *
+ * @i2400m: device descriptor
+ * @cin: Queue Index
+ * @skb: containing the packet data
+ * @fbn: First block number of the packet in @skb
+ * @sn: Last block number of the packet in @skb
+ *
+ * Note that unlike i2400m_roq_update_ws(), which sets the new window
+ * start to @sn, in here we'll set it to @sn + 1.
+ */
+static
+void i2400m_roq_queue_update_ws(struct i2400m *i2400m, struct i2400m_roq *roq,
+				struct sk_buff * skb, unsigned sn)
+{
+	struct device *dev = i2400m_dev(i2400m);
+	unsigned nsn, old_ws, len;
+
+	d_fnstart(2, dev, "(i2400m %p roq %p skb %p sn %u)\n",
+		  i2400m, roq, skb, sn);
+	len = skb_queue_len(&roq->queue);
+	nsn = __i2400m_roq_nsn(roq, sn);
+	old_ws = roq->ws;
+	if (unlikely(nsn >= 1024)) {
+		dev_err(dev, "SW BUG? queue_update_ws nsn %u (sn %u ws %u)\n",
+			nsn, sn, roq->ws);
+		i2400m_roq_log_dump(i2400m, roq);
+		i2400m->bus_reset(i2400m, I2400M_RT_WARM);
+	} else {
+		/* if the queue is empty, don't bother as we'd queue
+		 * it and inmediately unqueue it -- just deliver it */
+		if (len == 0) {
+			struct i2400m_roq_data *roq_data;
+			roq_data = (struct i2400m_roq_data *) &skb->cb;
+			i2400m_net_erx(i2400m, skb, roq_data->cs);
+		}
+		else {
+			__i2400m_roq_queue(i2400m, roq, skb, sn, nsn);
+			__i2400m_roq_update_ws(i2400m, roq, sn + 1);
+		}
+		i2400m_roq_log_add(i2400m, roq, I2400M_RO_TYPE_PACKET_WS,
+				   old_ws, len, sn, nsn, roq->ws);
+	}
+	d_fnend(2, dev, "(i2400m %p roq %p skb %p sn %u) = void\n",
+		i2400m, roq, skb, sn);
+	return;
+}
+
+
 /*
  * Receive and send up an extended data packet
  *
@@ -347,6 +849,28 @@ error_check:
  * having to copy packets around.
  *
  * This function handles said path.
+ *
+ *
+ * Receive and send up an extended data packet that requires no reordering
+ *
+ * @i2400m: device descriptor
+ * @skb_rx: skb that contains the extended data packet
+ * @single_last: 1 if the payload is the only one or the last one of
+ *     the skb.
+ * @payload: pointer to the packet's data (past the actual extended
+ *     data payload header).
+ * @size: size of the payload
+ *
+ * Pass over to the networking stack a data packet that might have
+ * reordering requirements.
+ *
+ * This needs to the decide if the skb in which the packet is
+ * contained can be reused or if it needs to be cloned. Then it has to
+ * be trimmed in the edges so that the beginning is the space for eth
+ * header and then pass it to i2400m_net_erx() for the stack
+ *
+ * Assumes the caller has verified the sanity of the payload (size,
+ * etc) already.
  */
 static
 void i2400m_rx_edata(struct i2400m *i2400m, struct sk_buff *skb_rx,
@@ -357,53 +881,86 @@ void i2400m_rx_edata(struct i2400m *i2400m, struct sk_buff *skb_rx,
 	struct net_device *net_dev = i2400m->wimax_dev.net_dev;
 	struct sk_buff *skb;
 	enum i2400m_cs cs;
-	unsigned reorder_needed;
+	u32 reorder;
+	unsigned ro_needed, ro_type, ro_cin, ro_sn;
+	struct i2400m_roq *roq;
+	struct i2400m_roq_data *roq_data;
 
-	d_fnstart(4, dev, "(i2400m %p skb_rx %p single %u payload %p "
+	BUILD_BUG_ON(ETH_HLEN > sizeof(*hdr));
+
+	d_fnstart(2, dev, "(i2400m %p skb_rx %p single %u payload %p "
 		  "size %zu)\n", i2400m, skb_rx, single_last, payload, size);
 	if (size < sizeof(*hdr)) {
 		dev_err(dev, "ERX: HW BUG? message with short header (%zu "
 			"vs %zu bytes expected)\n", size, sizeof(*hdr));
 		goto error;
 	}
-	reorder_needed = le32_to_cpu(hdr->reorder & I2400M_REORDER_NEEDED);
-	cs = hdr->cs;
-	if (reorder_needed) {
-		dev_err(dev, "ERX: HW BUG? reorder needed, it was disabled\n");
-		goto error;
-	}
-	/* ok, so now decide if we want to clone or reuse the skb,
-	 * pull and trim it so the beginning is the space for the eth
-	 * header and pass it to i2400m_net_erx() for the stack */
+
 	if (single_last) {
 		skb = skb_get(skb_rx);
-		d_printf(3, dev, "ERX: reusing single payload skb %p\n", skb);
+		d_printf(3, dev, "ERX: skb %p reusing\n", skb);
 	} else {
 		skb = skb_clone(skb_rx, GFP_KERNEL);
-		d_printf(3, dev, "ERX: cloning %p\n", skb);
 		if (skb == NULL) {
 			dev_err(dev, "ERX: no memory to clone skb\n");
 			net_dev->stats.rx_dropped++;
 			goto error_skb_clone;
 		}
+		d_printf(3, dev, "ERX: skb %p cloned from %p\n", skb, skb_rx);
 	}
 	/* now we have to pull and trim so that the skb points to the
 	 * beginning of the IP packet; the netdev part will add the
-	 * ethernet header as needed. */
-	BUILD_BUG_ON(ETH_HLEN > sizeof(*hdr));
+	 * ethernet header as needed - we know there is enough space
+	 * because we checked in i2400m_rx_edata(). */
 	skb_pull(skb, payload + sizeof(*hdr) - (void *) skb->data);
-	skb_trim(skb, (void *) skb_end_pointer(skb) - payload + sizeof(*hdr));
-	i2400m_net_erx(i2400m, skb, cs);
+	skb_trim(skb, (void *) skb_end_pointer(skb) - payload - sizeof(*hdr));
+
+	reorder = le32_to_cpu(hdr->reorder);
+	ro_needed = reorder & I2400M_RO_NEEDED;
+	cs = hdr->cs;
+	if (ro_needed) {
+		ro_type = (reorder >> I2400M_RO_TYPE_SHIFT) & I2400M_RO_TYPE;
+		ro_cin = (reorder >> I2400M_RO_CIN_SHIFT) & I2400M_RO_CIN;
+		ro_sn = (reorder >> I2400M_RO_SN_SHIFT) & I2400M_RO_SN;
+
+		roq = &i2400m->rx_roq[ro_cin];
+		roq_data = (struct i2400m_roq_data *) &skb->cb;
+		roq_data->sn = ro_sn;
+		roq_data->cs = cs;
+		d_printf(2, dev, "ERX: reorder needed: "
+			 "type %u cin %u [ws %u] sn %u/%u len %zuB\n",
+			 ro_type, ro_cin, roq->ws, ro_sn,
+			 __i2400m_roq_nsn(roq, ro_sn), size);
+		d_dump(2, dev, payload, size);
+		switch(ro_type) {
+		case I2400M_RO_TYPE_RESET:
+			i2400m_roq_reset(i2400m, roq);
+			kfree_skb(skb);	/* no data here */
+			break;
+		case I2400M_RO_TYPE_PACKET:
+			i2400m_roq_queue(i2400m, roq, skb, ro_sn);
+			break;
+		case I2400M_RO_TYPE_WS:
+			i2400m_roq_update_ws(i2400m, roq, ro_sn);
+			kfree_skb(skb);	/* no data here */
+			break;
+		case I2400M_RO_TYPE_PACKET_WS:
+			i2400m_roq_queue_update_ws(i2400m, roq, skb, ro_sn);
+			break;
+		default:
+			dev_err(dev, "HW BUG? unknown reorder type %u\n", ro_type);
+		}
+	}
+	else
+		i2400m_net_erx(i2400m, skb, cs);
 error_skb_clone:
 error:
-	d_fnend(4, dev, "(i2400m %p skb_rx %p single %u payload %p "
+	d_fnend(2, dev, "(i2400m %p skb_rx %p single %u payload %p "
 		"size %zu) = void\n", i2400m, skb_rx, single_last, payload, size);
 	return;
 }
 
 
-
-
 /*
  * Act on a received payload
  *
@@ -632,3 +1189,73 @@ error_msg_hdr_check:
 	return result;
 }
 EXPORT_SYMBOL_GPL(i2400m_rx);
+
+
+/*
+ * Initialize the RX queue and infrastructure
+ *
+ * This sets up all the RX reordering infrastructures, which will not
+ * be used if reordering is not enabled or if the firmware does not
+ * support it. The device is told to do reordering in
+ * i2400m_dev_initialize(), where it also looks at the value of the
+ * i2400m->rx_reorder switch before taking a decission.
+ *
+ * Note we allocate the roq queues in one chunk and the actual logging
+ * support for it (logging) in another one and then we setup the
+ * pointers from the first to the last.
+ */
+int i2400m_rx_setup(struct i2400m *i2400m)
+{
+	int result = 0;
+	struct device *dev = i2400m_dev(i2400m);
+
+	i2400m->rx_reorder = i2400m_rx_reorder_disabled? 0 : 1;
+	if (i2400m->rx_reorder) {
+		unsigned itr;
+		size_t size;
+		struct i2400m_roq_log *rd;
+
+		result = -ENOMEM;
+
+		size = sizeof(i2400m->rx_roq[0]) * (I2400M_RO_CIN + 1);
+		i2400m->rx_roq = kzalloc(size, GFP_KERNEL);
+		if (i2400m->rx_roq == NULL) {
+			dev_err(dev, "RX: cannot allocate %zu bytes for "
+				"reorder queues\n", size);
+			goto error_roq_alloc;
+		}
+
+		size = sizeof(*i2400m->rx_roq[0].log) * (I2400M_RO_CIN + 1);
+		rd = kzalloc(size, GFP_KERNEL);
+		if (rd == NULL) {
+			dev_err(dev, "RX: cannot allocate %zu bytes for "
+				"reorder queues log areas\n", size);
+			result = -ENOMEM;
+			goto error_roq_log_alloc;
+		}
+
+		for(itr = 0; itr < I2400M_RO_CIN + 1; itr++) {
+			__i2400m_roq_init(&i2400m->rx_roq[itr]);
+			i2400m->rx_roq[itr].log = &rd[itr];
+		}
+	}
+	return 0;
+
+error_roq_log_alloc:
+	kfree(i2400m->rx_roq);
+error_roq_alloc:
+	return result;
+}
+
+
+/* Tear down the RX queue and infrastructure */
+void i2400m_rx_release(struct i2400m *i2400m)
+{
+	if (i2400m->rx_reorder) {
+		unsigned itr;
+		for(itr = 0; itr < I2400M_RO_CIN + 1; itr++)
+			__skb_queue_purge(&i2400m->rx_roq[itr].queue);
+		kfree(i2400m->rx_roq[0].log);
+		kfree(i2400m->rx_roq);
+	}
+}
diff --git a/include/linux/wimax/i2400m.h b/include/linux/wimax/i2400m.h
index ad36e073a70c..d5148a7889a6 100644
--- a/include/linux/wimax/i2400m.h
+++ b/include/linux/wimax/i2400m.h
@@ -225,15 +225,16 @@ struct i2400m_pl_data_hdr {
 /*
  * Payload for an extended data packet
  *
- * New in v1.4
+ * New in fw v1.4
  *
+ * @reorder: if this payload has to be reorder or not (and how)
  * @cs: the type of data in the packet, as defined per (802.16e
  *     T11.13.19.1). Currently only 2 (IPv4 packet) supported.
  *
  * This is prefixed to each and every INCOMING DATA packet.
  */
 struct i2400m_pl_edata_hdr {
-	__le32 reorder;
+	__le32 reorder;		/* bits defined in i2400m_ro */
 	__u8 cs;
 	__u8 reserved[11];
 } __attribute__((packed));
@@ -243,8 +244,23 @@ enum i2400m_cs {
 	I2400M_CS_IPV4 = 2,
 };
 
-enum i2400m_reorder {
-	I2400M_REORDER_NEEDED     = 0x01,
+enum i2400m_ro {
+	I2400M_RO_NEEDED     = 0x01,
+	I2400M_RO_TYPE       = 0x03,
+	I2400M_RO_TYPE_SHIFT = 1,
+	I2400M_RO_CIN        = 0x0f,
+	I2400M_RO_CIN_SHIFT  = 4,
+	I2400M_RO_FBN        = 0x07ff,
+	I2400M_RO_FBN_SHIFT  = 8,
+	I2400M_RO_SN         = 0x07ff,
+	I2400M_RO_SN_SHIFT   = 21,
+};
+
+enum i2400m_ro_type {
+	I2400M_RO_TYPE_RESET = 0,
+	I2400M_RO_TYPE_PACKET,
+	I2400M_RO_TYPE_WS,
+	I2400M_RO_TYPE_PACKET_WS,
 };
 
 
@@ -410,6 +426,7 @@ enum i2400m_tlv {
 	I2400M_TLV_CONFIG_IDLE_PARAMETERS = 601,
 	I2400M_TLV_CONFIG_IDLE_TIMEOUT = 611,
 	I2400M_TLV_CONFIG_D2H_DATA_FORMAT = 614,
+	I2400M_TLV_CONFIG_DL_HOST_REORDER = 615,
 };
 
 
@@ -553,5 +570,12 @@ struct i2400m_tlv_config_d2h_data_format {
 	__u8 reserved[3];
 } __attribute__((packed));
 
+/* New in v1.4 */
+struct i2400m_tlv_config_dl_host_reorder {
+	struct i2400m_tlv_hdr hdr;
+	__u8 reorder; 		/* 0 disabled, 1 enabled */
+	__u8 reserved[3];
+} __attribute__((packed));
+
 
 #endif /* #ifndef __LINUX__WIMAX__I2400M_H__ */
-- 
cgit v1.2.3


From d3a21be86c178964167aa54c39a01260d33e7509 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <randy.dunlap@oracle.com>
Date: Mon, 2 Mar 2009 03:15:58 -0800
Subject: skbuff.h: fix timestamps kernel-doc

Fix skbuff.h kernel-doc for timestamps: must include "struct" keyword,
otherwise there are kernel-doc errors:

Error(linux-next-20090227//include/linux/skbuff.h:161): cannot understand prototype: 'struct skb_shared_hwtstamps '
Error(linux-next-20090227//include/linux/skbuff.h:177): cannot understand prototype: 'union skb_shared_tx '

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 61ce97a8b868..1f659e8c2b88 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -135,8 +135,7 @@ struct skb_frag_struct {
 #define HAVE_HW_TIME_STAMP
 
 /**
- * skb_shared_hwtstamps - hardware time stamps
- *
+ * struct skb_shared_hwtstamps - hardware time stamps
  * @hwtstamp:	hardware time stamp transformed into duration
  *		since arbitrary point in time
  * @syststamp:	hwtstamp transformed to system time base
@@ -164,8 +163,7 @@ struct skb_shared_hwtstamps {
 };
 
 /**
- * skb_shared_tx - instructions for time stamping of outgoing packets
- *
+ * struct skb_shared_tx - instructions for time stamping of outgoing packets
  * @hardware:		generate hardware time stamp
  * @software:		generate software time stamp
  * @in_progress:	device driver is going to provide
-- 
cgit v1.2.3


From ee7537b63a28b42b22e48842dfeedc66d96b71f1 Mon Sep 17 00:00:00 2001
From: Hantzis Fotis <xantzis@ceid.upatras.gr>
Date: Mon, 2 Mar 2009 22:42:02 -0800
Subject: tcp: tcp_init_wl / tcp_update_wl argument cleanup

The above functions from include/net/tcp.h have been defined with an
argument that they never use. The argument is 'u32 ack' which is never
used inside the function body, and thus it can be removed. The rest of
the patch involves the necessary changes to the function callers of the
above two functions.

Signed-off-by: Hantzis Fotis <xantzis@ceid.upatras.gr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h        | 4 ++--
 net/ipv4/tcp_input.c     | 9 ++++-----
 net/ipv4/tcp_minisocks.c | 2 +-
 net/ipv4/tcp_output.c    | 2 +-
 4 files changed, 8 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 055e4946d4c8..d74ac301e6bc 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -825,12 +825,12 @@ static inline void tcp_push_pending_frames(struct sock *sk)
 	__tcp_push_pending_frames(sk, tcp_current_mss(sk, 1), tp->nonagle);
 }
 
-static inline void tcp_init_wl(struct tcp_sock *tp, u32 ack, u32 seq)
+static inline void tcp_init_wl(struct tcp_sock *tp, u32 seq)
 {
 	tp->snd_wl1 = seq;
 }
 
-static inline void tcp_update_wl(struct tcp_sock *tp, u32 ack, u32 seq)
+static inline void tcp_update_wl(struct tcp_sock *tp, u32 seq)
 {
 	tp->snd_wl1 = seq;
 }
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e4442a293eb0..5ecd7aa25979 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3416,7 +3416,7 @@ static int tcp_ack_update_window(struct sock *sk, struct sk_buff *skb, u32 ack,
 
 	if (tcp_may_update_window(tp, ack, ack_seq, nwin)) {
 		flag |= FLAG_WIN_UPDATE;
-		tcp_update_wl(tp, ack, ack_seq);
+		tcp_update_wl(tp, ack_seq);
 
 		if (tp->snd_wnd != nwin) {
 			tp->snd_wnd = nwin;
@@ -3621,7 +3621,7 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag)
 		 * No more checks are required.
 		 * Note, we use the fact that SND.UNA>=SND.WL2.
 		 */
-		tcp_update_wl(tp, ack, ack_seq);
+		tcp_update_wl(tp, ack_seq);
 		tp->snd_una = ack;
 		flag |= FLAG_WIN_UPDATE;
 
@@ -5418,7 +5418,7 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
 		 * never scaled.
 		 */
 		tp->snd_wnd = ntohs(th->window);
-		tcp_init_wl(tp, TCP_SKB_CB(skb)->ack_seq, TCP_SKB_CB(skb)->seq);
+		tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);
 
 		if (!tp->rx_opt.wscale_ok) {
 			tp->rx_opt.snd_wscale = tp->rx_opt.rcv_wscale = 0;
@@ -5679,8 +5679,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 				tp->snd_una = TCP_SKB_CB(skb)->ack_seq;
 				tp->snd_wnd = ntohs(th->window) <<
 					      tp->rx_opt.snd_wscale;
-				tcp_init_wl(tp, TCP_SKB_CB(skb)->ack_seq,
-					    TCP_SKB_CB(skb)->seq);
+				tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);
 
 				/* tcp_ack considers this ACK as duplicate
 				 * and does not calculate rtt.
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index bb3d8b35f19a..4b0df3e6b609 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -399,7 +399,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
 
 		tcp_prequeue_init(newtp);
 
-		tcp_init_wl(newtp, treq->snt_isn, treq->rcv_isn);
+		tcp_init_wl(newtp, treq->rcv_isn);
 
 		newtp->srtt = 0;
 		newtp->mdev = TCP_TIMEOUT_INIT;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 920c57b90ded..eb285befdf3b 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2337,7 +2337,7 @@ static void tcp_connect_init(struct sock *sk)
 	sk->sk_err = 0;
 	sock_reset_flag(sk, SOCK_DONE);
 	tp->snd_wnd = 0;
-	tcp_init_wl(tp, tp->write_seq, 0);
+	tcp_init_wl(tp, 0);
 	tp->snd_una = tp->write_seq;
 	tp->snd_sml = tp->write_seq;
 	tp->snd_up = tp->write_seq;
-- 
cgit v1.2.3


From 7e99013a5043cacd375375c3efad35b57c3afdba Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Mon, 2 Mar 2009 09:46:14 +0000
Subject: sctp: Fix broken RTO-doubling for data retransmits

Commit faee47cdbfe8d74a1573c2f81ea6dbb08d735be6
(sctp: Fix the RTO-doubling on idle-link heartbeats)
broke the RTO doubling for data retransmits.  If the
heartbeat was sent before the data T3-rtx time, the
the RTO will not double upon the T3-rtx expiration.
Distingish between the operations by passing an argument
to the function.

Additionally, Wei Youngjun pointed out that our treatment
of requested HEARTBEATS and timer HEARTBEATS is the same
wrt resetting congestion window.  That needs to be separated,
since user requested HEARTBEATS should not treat the link
as idle.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/command.h |  3 ++-
 net/sctp/sm_sideeffect.c   | 32 +++++++++++++-------------------
 net/sctp/sm_statefuns.c    |  6 ++++--
 3 files changed, 19 insertions(+), 22 deletions(-)

(limited to 'include')

diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h
index 88988ab03d75..3b966802e05d 100644
--- a/include/net/sctp/command.h
+++ b/include/net/sctp/command.h
@@ -77,7 +77,8 @@ typedef enum {
 	SCTP_CMD_HB_TIMERS_START,    /* Start the heartbeat timers. */
 	SCTP_CMD_HB_TIMER_UPDATE,    /* Update a heartbeat timers.  */
 	SCTP_CMD_HB_TIMERS_STOP,     /* Stop the heartbeat timers.  */
-	SCTP_CMD_TRANSPORT_RESET,    /* Reset the status of a transport. */
+	SCTP_CMD_TRANSPORT_HB_SENT,  /* Reset the status of a transport. */
+	SCTP_CMD_TRANSPORT_IDLE,     /* Do manipulations on idle transport */
 	SCTP_CMD_TRANSPORT_ON,       /* Mark the transport as active. */
 	SCTP_CMD_REPORT_ERROR,   /* Pass this error back out of the sm. */
 	SCTP_CMD_REPORT_BAD_TAG, /* Verification tags didn't match. */
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 0146cfb1f182..5385150df296 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -434,7 +434,8 @@ sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
  *
  */
 static void sctp_do_8_2_transport_strike(struct sctp_association *asoc,
-					 struct sctp_transport *transport)
+					 struct sctp_transport *transport,
+					 int is_hb)
 {
 	/* The check for association's overall error counter exceeding the
 	 * threshold is done in the state function.
@@ -466,7 +467,7 @@ static void sctp_do_8_2_transport_strike(struct sctp_association *asoc,
 	 * The first unacknowleged HB triggers it.  We do this with a flag
 	 * that indicates that we have an outstanding HB.
 	 */
-	if (transport->hb_sent) {
+	if (!is_hb || transport->hb_sent) {
 		transport->last_rto = transport->rto;
 		transport->rto = min((transport->rto * 2), transport->asoc->rto_max);
 	}
@@ -657,20 +658,6 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
 		sctp_transport_hold(t);
 }
 
-/* Helper function to do a transport reset at the expiry of the hearbeat
- * timer.
- */
-static void sctp_cmd_transport_reset(sctp_cmd_seq_t *cmds,
-				     struct sctp_association *asoc,
-				     struct sctp_transport *t)
-{
-	sctp_transport_lower_cwnd(t, SCTP_LOWER_CWND_INACTIVE);
-
-	/* Mark one strike against a transport.  */
-	sctp_do_8_2_transport_strike(asoc, t);
-
-	t->hb_sent = 1;
-}
 
 /* Helper function to process the process SACK command.  */
 static int sctp_cmd_process_sack(sctp_cmd_seq_t *cmds,
@@ -1459,12 +1446,19 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 
 		case SCTP_CMD_STRIKE:
 			/* Mark one strike against a transport.  */
-			sctp_do_8_2_transport_strike(asoc, cmd->obj.transport);
+			sctp_do_8_2_transport_strike(asoc, cmd->obj.transport,
+						    0);
+			break;
+
+		case SCTP_CMD_TRANSPORT_IDLE:
+			t = cmd->obj.transport;
+			sctp_transport_lower_cwnd(t, SCTP_LOWER_CWND_INACTIVE);
 			break;
 
-		case SCTP_CMD_TRANSPORT_RESET:
+		case SCTP_CMD_TRANSPORT_HB_SENT:
 			t = cmd->obj.transport;
-			sctp_cmd_transport_reset(commands, asoc, t);
+			sctp_do_8_2_transport_strike(asoc, t, 1);
+			t->hb_sent = 1;
 			break;
 
 		case SCTP_CMD_TRANSPORT_ON:
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 3a0cd075914f..a907bab0963d 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -988,7 +988,9 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(const struct sctp_endpoint *ep,
 		/* Set transport error counter and association error counter
 		 * when sending heartbeat.
 		 */
-		sctp_add_cmd_sf(commands, SCTP_CMD_TRANSPORT_RESET,
+		sctp_add_cmd_sf(commands, SCTP_CMD_TRANSPORT_IDLE,
+				SCTP_TRANSPORT(transport));
+		sctp_add_cmd_sf(commands, SCTP_CMD_TRANSPORT_HB_SENT,
 				SCTP_TRANSPORT(transport));
 	}
 	sctp_add_cmd_sf(commands, SCTP_CMD_HB_TIMER_UPDATE,
@@ -4967,7 +4969,7 @@ sctp_disposition_t sctp_sf_do_prm_requestheartbeat(
 	 *    to that address and not acknowledged within one RTO.
 	 *
 	 */
-	sctp_add_cmd_sf(commands, SCTP_CMD_TRANSPORT_RESET,
+	sctp_add_cmd_sf(commands, SCTP_CMD_TRANSPORT_HB_SENT,
 			SCTP_TRANSPORT(arg));
 	return SCTP_DISPOSITION_CONSUME;
 }
-- 
cgit v1.2.3


From a1d2f09544065b60598b8167d94a6371bff3e892 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Wed, 4 Mar 2009 15:05:33 +0800
Subject: crypto: compress - Add pcomp interface

The current "comp" crypto interface supports one-shot (de)compression only,
i.e. the whole data buffer to be (de)compressed must be passed at once, and
the whole (de)compressed data buffer will be received at once.
In several use-cases (e.g. compressed file systems that store files in big
compressed blocks), this workflow is not suitable.
Furthermore, the "comp" type doesn't provide for the configuration of
(de)compression parameters, and always allocates workspace memory for both
compression and decompression, which may waste memory.

To solve this, add a "pcomp" partial (de)compression interface that provides
the following operations:
  - crypto_compress_{init,update,final}() for compression,
  - crypto_decompress_{init,update,final}() for decompression,
  - crypto_{,de}compress_setup(), to configure (de)compression parameters
    (incl. allocating workspace memory).

The (de)compression methods take a struct comp_request, which was mimicked
after the z_stream object in zlib, and contains buffer pointer and length
pairs for input and output.

The setup methods take an opaque parameter pointer and length pair. Parameters
are supposed to be encoded using netlink attributes, whose meanings depend on
the actual (name of the) (de)compression algorithm.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Kconfig                     |   4 ++
 crypto/Makefile                    |   2 +
 crypto/pcompress.c                 |  97 ++++++++++++++++++++++++++++
 include/crypto/compress.h          | 125 +++++++++++++++++++++++++++++++++++++
 include/crypto/internal/compress.h |  28 +++++++++
 include/linux/crypto.h             |   1 +
 6 files changed, 257 insertions(+)
 create mode 100644 crypto/pcompress.c
 create mode 100644 include/crypto/compress.h
 create mode 100644 include/crypto/internal/compress.h

(limited to 'include')

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 4a3e6b225189..1676f171c54b 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -76,6 +76,10 @@ config CRYPTO_RNG2
 	tristate
 	select CRYPTO_ALGAPI2
 
+config CRYPTO_PCOMP
+	tristate
+	select CRYPTO_ALGAPI2
+
 config CRYPTO_MANAGER
 	tristate "Cryptographic algorithm manager"
 	select CRYPTO_MANAGER2
diff --git a/crypto/Makefile b/crypto/Makefile
index e05a844e08d5..1132a678b253 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -27,6 +27,8 @@ crypto_hash-objs += ahash.o
 crypto_hash-objs += shash.o
 obj-$(CONFIG_CRYPTO_HASH2) += crypto_hash.o
 
+obj-$(CONFIG_CRYPTO_PCOMP) += pcompress.o
+
 cryptomgr-objs := algboss.o testmgr.o
 
 obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o
diff --git a/crypto/pcompress.c b/crypto/pcompress.c
new file mode 100644
index 000000000000..ca9a4af91efe
--- /dev/null
+++ b/crypto/pcompress.c
@@ -0,0 +1,97 @@
+/*
+ * Cryptographic API.
+ *
+ * Partial (de)compression operations.
+ *
+ * Copyright 2008 Sony Corporation
+ *
+ * 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.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/crypto.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/seq_file.h>
+#include <linux/string.h>
+
+#include <crypto/compress.h>
+
+#include "internal.h"
+
+
+static int crypto_pcomp_init(struct crypto_tfm *tfm, u32 type, u32 mask)
+{
+	return 0;
+}
+
+static unsigned int crypto_pcomp_extsize(struct crypto_alg *alg,
+					 const struct crypto_type *frontend)
+{
+	return alg->cra_ctxsize;
+}
+
+static int crypto_pcomp_init_tfm(struct crypto_tfm *tfm,
+				 const struct crypto_type *frontend)
+{
+	return 0;
+}
+
+static void crypto_pcomp_show(struct seq_file *m, struct crypto_alg *alg)
+	__attribute__ ((unused));
+static void crypto_pcomp_show(struct seq_file *m, struct crypto_alg *alg)
+{
+	seq_printf(m, "type         : pcomp\n");
+}
+
+static const struct crypto_type crypto_pcomp_type = {
+	.extsize	= crypto_pcomp_extsize,
+	.init		= crypto_pcomp_init,
+	.init_tfm	= crypto_pcomp_init_tfm,
+#ifdef CONFIG_PROC_FS
+	.show		= crypto_pcomp_show,
+#endif
+	.maskclear	= ~CRYPTO_ALG_TYPE_MASK,
+	.maskset	= CRYPTO_ALG_TYPE_MASK,
+	.type		= CRYPTO_ALG_TYPE_PCOMPRESS,
+	.tfmsize	= offsetof(struct crypto_pcomp, base),
+};
+
+struct crypto_pcomp *crypto_alloc_pcomp(const char *alg_name, u32 type,
+					u32 mask)
+{
+	return crypto_alloc_tfm(alg_name, &crypto_pcomp_type, type, mask);
+}
+EXPORT_SYMBOL_GPL(crypto_alloc_pcomp);
+
+int crypto_register_pcomp(struct pcomp_alg *alg)
+{
+	struct crypto_alg *base = &alg->base;
+
+	base->cra_type = &crypto_pcomp_type;
+	base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
+	base->cra_flags |= CRYPTO_ALG_TYPE_PCOMPRESS;
+
+	return crypto_register_alg(base);
+}
+EXPORT_SYMBOL_GPL(crypto_register_pcomp);
+
+int crypto_unregister_pcomp(struct pcomp_alg *alg)
+{
+	return crypto_unregister_alg(&alg->base);
+}
+EXPORT_SYMBOL_GPL(crypto_unregister_pcomp);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Partial (de)compression type");
+MODULE_AUTHOR("Sony Corporation");
diff --git a/include/crypto/compress.h b/include/crypto/compress.h
new file mode 100644
index 000000000000..b7d228708d6b
--- /dev/null
+++ b/include/crypto/compress.h
@@ -0,0 +1,125 @@
+/*
+ * Compress: Compression algorithms under the cryptographic API.
+ *
+ * Copyright 2008 Sony Corporation
+ *
+ * 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.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _CRYPTO_COMPRESS_H
+#define _CRYPTO_COMPRESS_H
+
+#include <linux/crypto.h>
+
+
+struct comp_request {
+	const void *next_in;		/* next input byte */
+	void *next_out;			/* next output byte */
+	unsigned int avail_in;		/* bytes available at next_in */
+	unsigned int avail_out;		/* bytes available at next_out */
+};
+
+struct crypto_pcomp {
+	struct crypto_tfm base;
+};
+
+struct pcomp_alg {
+	int (*compress_setup)(struct crypto_pcomp *tfm, void *params,
+			      unsigned int len);
+	int (*compress_init)(struct crypto_pcomp *tfm);
+	int (*compress_update)(struct crypto_pcomp *tfm,
+			       struct comp_request *req);
+	int (*compress_final)(struct crypto_pcomp *tfm,
+			      struct comp_request *req);
+	int (*decompress_setup)(struct crypto_pcomp *tfm, void *params,
+				unsigned int len);
+	int (*decompress_init)(struct crypto_pcomp *tfm);
+	int (*decompress_update)(struct crypto_pcomp *tfm,
+				 struct comp_request *req);
+	int (*decompress_final)(struct crypto_pcomp *tfm,
+				struct comp_request *req);
+
+	struct crypto_alg base;
+};
+
+extern struct crypto_pcomp *crypto_alloc_pcomp(const char *alg_name, u32 type,
+					       u32 mask);
+
+static inline struct crypto_tfm *crypto_pcomp_tfm(struct crypto_pcomp *tfm)
+{
+	return &tfm->base;
+}
+
+static inline void crypto_free_pcomp(struct crypto_pcomp *tfm)
+{
+	crypto_destroy_tfm(tfm, crypto_pcomp_tfm(tfm));
+}
+
+static inline struct pcomp_alg *__crypto_pcomp_alg(struct crypto_alg *alg)
+{
+	return container_of(alg, struct pcomp_alg, base);
+}
+
+static inline struct pcomp_alg *crypto_pcomp_alg(struct crypto_pcomp *tfm)
+{
+	return __crypto_pcomp_alg(crypto_pcomp_tfm(tfm)->__crt_alg);
+}
+
+static inline int crypto_compress_setup(struct crypto_pcomp *tfm,
+					void *params, unsigned int len)
+{
+	return crypto_pcomp_alg(tfm)->compress_setup(tfm, params, len);
+}
+
+static inline int crypto_compress_init(struct crypto_pcomp *tfm)
+{
+	return crypto_pcomp_alg(tfm)->compress_init(tfm);
+}
+
+static inline int crypto_compress_update(struct crypto_pcomp *tfm,
+					 struct comp_request *req)
+{
+	return crypto_pcomp_alg(tfm)->compress_update(tfm, req);
+}
+
+static inline int crypto_compress_final(struct crypto_pcomp *tfm,
+					struct comp_request *req)
+{
+	return crypto_pcomp_alg(tfm)->compress_final(tfm, req);
+}
+
+static inline int crypto_decompress_setup(struct crypto_pcomp *tfm,
+					  void *params, unsigned int len)
+{
+	return crypto_pcomp_alg(tfm)->decompress_setup(tfm, params, len);
+}
+
+static inline int crypto_decompress_init(struct crypto_pcomp *tfm)
+{
+	return crypto_pcomp_alg(tfm)->decompress_init(tfm);
+}
+
+static inline int crypto_decompress_update(struct crypto_pcomp *tfm,
+					   struct comp_request *req)
+{
+	return crypto_pcomp_alg(tfm)->decompress_update(tfm, req);
+}
+
+static inline int crypto_decompress_final(struct crypto_pcomp *tfm,
+					  struct comp_request *req)
+{
+	return crypto_pcomp_alg(tfm)->decompress_final(tfm, req);
+}
+
+#endif	/* _CRYPTO_COMPRESS_H */
diff --git a/include/crypto/internal/compress.h b/include/crypto/internal/compress.h
new file mode 100644
index 000000000000..178a888d1d93
--- /dev/null
+++ b/include/crypto/internal/compress.h
@@ -0,0 +1,28 @@
+/*
+ * Compress: Compression algorithms under the cryptographic API.
+ *
+ * Copyright 2008 Sony Corporation
+ *
+ * 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.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _CRYPTO_INTERNAL_COMPRESS_H
+#define _CRYPTO_INTERNAL_COMPRESS_H
+
+#include <crypto/compress.h>
+
+extern int crypto_register_pcomp(struct pcomp_alg *alg);
+extern int crypto_unregister_pcomp(struct pcomp_alg *alg);
+
+#endif	/* _CRYPTO_INTERNAL_COMPRESS_H */
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 29729b834380..ec29fa268b94 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -40,6 +40,7 @@
 #define CRYPTO_ALG_TYPE_SHASH		0x00000009
 #define CRYPTO_ALG_TYPE_AHASH		0x0000000a
 #define CRYPTO_ALG_TYPE_RNG		0x0000000c
+#define CRYPTO_ALG_TYPE_PCOMPRESS	0x0000000f
 
 #define CRYPTO_ALG_TYPE_HASH_MASK	0x0000000e
 #define CRYPTO_ALG_TYPE_AHASH_MASK	0x0000000c
-- 
cgit v1.2.3


From bf68e65ec9ea61e32ab71bef59aa5d24d255241f Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Wed, 4 Mar 2009 15:15:49 +0800
Subject: crypto: zlib - New zlib crypto module, using pcomp

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Kconfig            |   9 ++
 crypto/Makefile           |   1 +
 crypto/zlib.c             | 378 ++++++++++++++++++++++++++++++++++++++++++++++
 include/crypto/compress.h |  20 +++
 4 files changed, 408 insertions(+)
 create mode 100644 crypto/zlib.c

(limited to 'include')

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 1676f171c54b..be5d3128f8a8 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -748,6 +748,15 @@ config CRYPTO_DEFLATE
 
 	  You will most probably want this if using IPSec.
 
+config CRYPTO_ZLIB
+	tristate "Zlib compression algorithm"
+	select CRYPTO_PCOMP
+	select ZLIB_INFLATE
+	select ZLIB_DEFLATE
+	select NLATTR
+	help
+	  This is the zlib algorithm.
+
 config CRYPTO_LZO
 	tristate "LZO compression algorithm"
 	select CRYPTO_ALGAPI
diff --git a/crypto/Makefile b/crypto/Makefile
index 1132a678b253..673d9f7c1bda 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -74,6 +74,7 @@ obj-$(CONFIG_CRYPTO_ANUBIS) += anubis.o
 obj-$(CONFIG_CRYPTO_SEED) += seed.o
 obj-$(CONFIG_CRYPTO_SALSA20) += salsa20_generic.o
 obj-$(CONFIG_CRYPTO_DEFLATE) += deflate.o
+obj-$(CONFIG_CRYPTO_ZLIB) += zlib.o
 obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += michael_mic.o
 obj-$(CONFIG_CRYPTO_CRC32C) += crc32c.o
 obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.o
diff --git a/crypto/zlib.c b/crypto/zlib.c
new file mode 100644
index 000000000000..33609bab614e
--- /dev/null
+++ b/crypto/zlib.c
@@ -0,0 +1,378 @@
+/*
+ * Cryptographic API.
+ *
+ * Zlib algorithm
+ *
+ * Copyright 2008 Sony Corporation
+ *
+ * Based on deflate.c, which is
+ * Copyright (c) 2003 James Morris <jmorris@intercode.com.au>
+ *
+ * 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.
+ *
+ * FIXME: deflate transforms will require up to a total of about 436k of kernel
+ * memory on i386 (390k for compression, the rest for decompression), as the
+ * current zlib kernel code uses a worst case pre-allocation system by default.
+ * This needs to be fixed so that the amount of memory required is properly
+ * related to the winbits and memlevel parameters.
+ */
+
+#define pr_fmt(fmt)	"%s: " fmt, __func__
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/zlib.h>
+#include <linux/vmalloc.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/net.h>
+#include <linux/slab.h>
+
+#include <crypto/internal/compress.h>
+
+#include <net/netlink.h>
+
+
+struct zlib_ctx {
+	struct z_stream_s comp_stream;
+	struct z_stream_s decomp_stream;
+	int decomp_windowBits;
+};
+
+
+static void zlib_comp_exit(struct zlib_ctx *ctx)
+{
+	struct z_stream_s *stream = &ctx->comp_stream;
+
+	if (stream->workspace) {
+		zlib_deflateEnd(stream);
+		vfree(stream->workspace);
+		stream->workspace = NULL;
+	}
+}
+
+static void zlib_decomp_exit(struct zlib_ctx *ctx)
+{
+	struct z_stream_s *stream = &ctx->decomp_stream;
+
+	if (stream->workspace) {
+		zlib_inflateEnd(stream);
+		kfree(stream->workspace);
+		stream->workspace = NULL;
+	}
+}
+
+static int zlib_init(struct crypto_tfm *tfm)
+{
+	return 0;
+}
+
+static void zlib_exit(struct crypto_tfm *tfm)
+{
+	struct zlib_ctx *ctx = crypto_tfm_ctx(tfm);
+
+	zlib_comp_exit(ctx);
+	zlib_decomp_exit(ctx);
+}
+
+
+static int zlib_compress_setup(struct crypto_pcomp *tfm, void *params,
+			       unsigned int len)
+{
+	struct zlib_ctx *ctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
+	struct z_stream_s *stream = &ctx->comp_stream;
+	struct nlattr *tb[ZLIB_COMP_MAX + 1];
+	size_t workspacesize;
+	int ret;
+
+	ret = nla_parse(tb, ZLIB_COMP_MAX, params, len, NULL);
+	if (ret)
+		return ret;
+
+	zlib_comp_exit(ctx);
+
+	workspacesize = zlib_deflate_workspacesize();
+	stream->workspace = vmalloc(workspacesize);
+	if (!stream->workspace)
+		return -ENOMEM;
+
+	memset(stream->workspace, 0, workspacesize);
+	ret = zlib_deflateInit2(stream,
+				tb[ZLIB_COMP_LEVEL]
+					? nla_get_u32(tb[ZLIB_COMP_LEVEL])
+					: Z_DEFAULT_COMPRESSION,
+				tb[ZLIB_COMP_METHOD]
+					? nla_get_u32(tb[ZLIB_COMP_METHOD])
+					: Z_DEFLATED,
+				tb[ZLIB_COMP_WINDOWBITS]
+					? nla_get_u32(tb[ZLIB_COMP_WINDOWBITS])
+					: MAX_WBITS,
+				tb[ZLIB_COMP_MEMLEVEL]
+					? nla_get_u32(tb[ZLIB_COMP_MEMLEVEL])
+					: DEF_MEM_LEVEL,
+				tb[ZLIB_COMP_STRATEGY]
+					? nla_get_u32(tb[ZLIB_COMP_STRATEGY])
+					: Z_DEFAULT_STRATEGY);
+	if (ret != Z_OK) {
+		vfree(stream->workspace);
+		stream->workspace = NULL;
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int zlib_compress_init(struct crypto_pcomp *tfm)
+{
+	int ret;
+	struct zlib_ctx *dctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
+	struct z_stream_s *stream = &dctx->comp_stream;
+
+	ret = zlib_deflateReset(stream);
+	if (ret != Z_OK)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int zlib_compress_update(struct crypto_pcomp *tfm,
+				struct comp_request *req)
+{
+	int ret;
+	struct zlib_ctx *dctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
+	struct z_stream_s *stream = &dctx->comp_stream;
+
+	pr_debug("avail_in %u, avail_out %u\n", req->avail_in, req->avail_out);
+	stream->next_in = req->next_in;
+	stream->avail_in = req->avail_in;
+	stream->next_out = req->next_out;
+	stream->avail_out = req->avail_out;
+
+	ret = zlib_deflate(stream, Z_NO_FLUSH);
+	switch (ret) {
+	case Z_OK:
+		break;
+
+	case Z_BUF_ERROR:
+		pr_debug("zlib_deflate could not make progress\n");
+		return -EAGAIN;
+
+	default:
+		pr_debug("zlib_deflate failed %d\n", ret);
+		return -EINVAL;
+	}
+
+	pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
+		 stream->avail_in, stream->avail_out,
+		 req->avail_in - stream->avail_in,
+		 req->avail_out - stream->avail_out);
+	req->next_in = stream->next_in;
+	req->avail_in = stream->avail_in;
+	req->next_out = stream->next_out;
+	req->avail_out = stream->avail_out;
+	return 0;
+}
+
+static int zlib_compress_final(struct crypto_pcomp *tfm,
+			       struct comp_request *req)
+{
+	int ret;
+	struct zlib_ctx *dctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
+	struct z_stream_s *stream = &dctx->comp_stream;
+
+	pr_debug("avail_in %u, avail_out %u\n", req->avail_in, req->avail_out);
+	stream->next_in = req->next_in;
+	stream->avail_in = req->avail_in;
+	stream->next_out = req->next_out;
+	stream->avail_out = req->avail_out;
+
+	ret = zlib_deflate(stream, Z_FINISH);
+	if (ret != Z_STREAM_END) {
+		pr_debug("zlib_deflate failed %d\n", ret);
+		return -EINVAL;
+	}
+
+	pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
+		 stream->avail_in, stream->avail_out,
+		 req->avail_in - stream->avail_in,
+		 req->avail_out - stream->avail_out);
+	req->next_in = stream->next_in;
+	req->avail_in = stream->avail_in;
+	req->next_out = stream->next_out;
+	req->avail_out = stream->avail_out;
+	return 0;
+}
+
+
+static int zlib_decompress_setup(struct crypto_pcomp *tfm, void *params,
+				 unsigned int len)
+{
+	struct zlib_ctx *ctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
+	struct z_stream_s *stream = &ctx->decomp_stream;
+	struct nlattr *tb[ZLIB_DECOMP_MAX + 1];
+	int ret = 0;
+
+	ret = nla_parse(tb, ZLIB_DECOMP_MAX, params, len, NULL);
+	if (ret)
+		return ret;
+
+	zlib_decomp_exit(ctx);
+
+	ctx->decomp_windowBits = tb[ZLIB_DECOMP_WINDOWBITS]
+				 ? nla_get_u32(tb[ZLIB_DECOMP_WINDOWBITS])
+				 : DEF_WBITS;
+
+	stream->workspace = kzalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
+	if (!stream->workspace)
+		return -ENOMEM;
+
+	ret = zlib_inflateInit2(stream, ctx->decomp_windowBits);
+	if (ret != Z_OK) {
+		kfree(stream->workspace);
+		stream->workspace = NULL;
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int zlib_decompress_init(struct crypto_pcomp *tfm)
+{
+	int ret;
+	struct zlib_ctx *dctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
+	struct z_stream_s *stream = &dctx->decomp_stream;
+
+	ret = zlib_inflateReset(stream);
+	if (ret != Z_OK)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int zlib_decompress_update(struct crypto_pcomp *tfm,
+				  struct comp_request *req)
+{
+	int ret;
+	struct zlib_ctx *dctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
+	struct z_stream_s *stream = &dctx->decomp_stream;
+
+	pr_debug("avail_in %u, avail_out %u\n", req->avail_in, req->avail_out);
+	stream->next_in = req->next_in;
+	stream->avail_in = req->avail_in;
+	stream->next_out = req->next_out;
+	stream->avail_out = req->avail_out;
+
+	ret = zlib_inflate(stream, Z_SYNC_FLUSH);
+	switch (ret) {
+	case Z_OK:
+	case Z_STREAM_END:
+		break;
+
+	case Z_BUF_ERROR:
+		pr_debug("zlib_inflate could not make progress\n");
+		return -EAGAIN;
+
+	default:
+		pr_debug("zlib_inflate failed %d\n", ret);
+		return -EINVAL;
+	}
+
+	pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
+		 stream->avail_in, stream->avail_out,
+		 req->avail_in - stream->avail_in,
+		 req->avail_out - stream->avail_out);
+	req->next_in = stream->next_in;
+	req->avail_in = stream->avail_in;
+	req->next_out = stream->next_out;
+	req->avail_out = stream->avail_out;
+	return 0;
+}
+
+static int zlib_decompress_final(struct crypto_pcomp *tfm,
+				 struct comp_request *req)
+{
+	int ret;
+	struct zlib_ctx *dctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
+	struct z_stream_s *stream = &dctx->decomp_stream;
+
+	pr_debug("avail_in %u, avail_out %u\n", req->avail_in, req->avail_out);
+	stream->next_in = req->next_in;
+	stream->avail_in = req->avail_in;
+	stream->next_out = req->next_out;
+	stream->avail_out = req->avail_out;
+
+	if (dctx->decomp_windowBits < 0) {
+		ret = zlib_inflate(stream, Z_SYNC_FLUSH);
+		/*
+		 * Work around a bug in zlib, which sometimes wants to taste an
+		 * extra byte when being used in the (undocumented) raw deflate
+		 * mode. (From USAGI).
+		 */
+		if (ret == Z_OK && !stream->avail_in && stream->avail_out) {
+			const void *saved_next_in = stream->next_in;
+			u8 zerostuff = 0;
+
+			stream->next_in = &zerostuff;
+			stream->avail_in = 1;
+			ret = zlib_inflate(stream, Z_FINISH);
+			stream->next_in = saved_next_in;
+			stream->avail_in = 0;
+		}
+	} else
+		ret = zlib_inflate(stream, Z_FINISH);
+	if (ret != Z_STREAM_END) {
+		pr_debug("zlib_inflate failed %d\n", ret);
+		return -EINVAL;
+	}
+
+	pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
+		 stream->avail_in, stream->avail_out,
+		 req->avail_in - stream->avail_in,
+		 req->avail_out - stream->avail_out);
+	req->next_in = stream->next_in;
+	req->avail_in = stream->avail_in;
+	req->next_out = stream->next_out;
+	req->avail_out = stream->avail_out;
+	return 0;
+}
+
+
+static struct pcomp_alg zlib_alg = {
+	.compress_setup		= zlib_compress_setup,
+	.compress_init		= zlib_compress_init,
+	.compress_update	= zlib_compress_update,
+	.compress_final		= zlib_compress_final,
+	.decompress_setup	= zlib_decompress_setup,
+	.decompress_init	= zlib_decompress_init,
+	.decompress_update	= zlib_decompress_update,
+	.decompress_final	= zlib_decompress_final,
+
+	.base			= {
+		.cra_name	= "zlib",
+		.cra_flags	= CRYPTO_ALG_TYPE_PCOMPRESS,
+		.cra_ctxsize	= sizeof(struct zlib_ctx),
+		.cra_module	= THIS_MODULE,
+		.cra_init	= zlib_init,
+		.cra_exit	= zlib_exit,
+	}
+};
+
+static int __init zlib_mod_init(void)
+{
+	return crypto_register_pcomp(&zlib_alg);
+}
+
+static void __exit zlib_mod_fini(void)
+{
+	crypto_unregister_pcomp(&zlib_alg);
+}
+
+module_init(zlib_mod_init);
+module_exit(zlib_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Zlib Compression Algorithm");
+MODULE_AUTHOR("Sony Corporation");
diff --git a/include/crypto/compress.h b/include/crypto/compress.h
index b7d228708d6b..86163ef24219 100644
--- a/include/crypto/compress.h
+++ b/include/crypto/compress.h
@@ -30,6 +30,26 @@ struct comp_request {
 	unsigned int avail_out;		/* bytes available at next_out */
 };
 
+enum zlib_comp_params {
+	ZLIB_COMP_LEVEL = 1,		/* e.g. Z_DEFAULT_COMPRESSION */
+	ZLIB_COMP_METHOD,		/* e.g. Z_DEFLATED */
+	ZLIB_COMP_WINDOWBITS,		/* e.g. MAX_WBITS */
+	ZLIB_COMP_MEMLEVEL,		/* e.g. DEF_MEM_LEVEL */
+	ZLIB_COMP_STRATEGY,		/* e.g. Z_DEFAULT_STRATEGY */
+	__ZLIB_COMP_MAX,
+};
+
+#define ZLIB_COMP_MAX	(__ZLIB_COMP_MAX - 1)
+
+
+enum zlib_decomp_params {
+	ZLIB_DECOMP_WINDOWBITS = 1,	/* e.g. DEF_WBITS */
+	__ZLIB_DECOMP_MAX,
+};
+
+#define ZLIB_DECOMP_MAX	(__ZLIB_DECOMP_MAX - 1)
+
+
 struct crypto_pcomp {
 	struct crypto_tfm base;
 };
-- 
cgit v1.2.3


From 0c5c2d3089068d4aa378f7a40d2b5ad9d4f52ce8 Mon Sep 17 00:00:00 2001
From: Eric Biederman <ebiederm@aristanetworks.com>
Date: Wed, 4 Mar 2009 00:03:08 -0800
Subject: neigh: Allow for user space users of the neighbour table

Currently it is possible to do just about everything with the arp table
from user space except treat an entry like you are using it.  To that end
implement and a flag NTF_USE that when set in a netwlink update request
treats the neighbour table entry like the kernel does on the output path.

This allows user space applications to share the kernel's arp cache.

Signed-off-by: Eric Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/neighbour.h | 1 +
 net/core/neighbour.c      | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/neighbour.h b/include/linux/neighbour.h
index 8730d5dae1bc..12c9de138451 100644
--- a/include/linux/neighbour.h
+++ b/include/linux/neighbour.h
@@ -31,6 +31,7 @@ enum
  *	Neighbor Cache Entry Flags
  */
 
+#define NTF_USE		0x01
 #define NTF_PROXY	0x08	/* == ATF_PUBL */
 #define NTF_ROUTER	0x80
 
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 417b6d739fb7..a1cbce7fdae5 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1654,7 +1654,11 @@ static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 				flags &= ~NEIGH_UPDATE_F_OVERRIDE;
 		}
 
-		err = neigh_update(neigh, lladdr, ndm->ndm_state, flags);
+		if (ndm->ndm_flags & NTF_USE) {
+			neigh_event_send(neigh, NULL);
+			err = 0;
+		} else
+			err = neigh_update(neigh, lladdr, ndm->ndm_state, flags);
 		neigh_release(neigh);
 		goto out_dev_put;
 	}
-- 
cgit v1.2.3


From ec67624d33d5639bcc6ee6918cb1fc0bd1bac3a8 Mon Sep 17 00:00:00 2001
From: "Lopez Cruz, Misael" <x0052729@ti.com>
Date: Tue, 3 Mar 2009 15:25:04 -0600
Subject: ASoC: Add GPIO support for jack reporting interface

Add GPIO support to jack reporting framework in ASoC using gpiolib calls.
The gpio support exports two new functions: snd_soc_jack_add_gpios and
snd_soc_jack_free_gpios.

Client drivers using gpio feature must pass an array of jack_gpio pins
belonging to a specific jack to the snd_soc_jack_add_gpios function. The
framework will request the gpios, set the data direction and request irq.
The framework will update power status of related jack_pins when an event on
the gpio pins comes according to the reporting bits defined for each gpio.

All gpio resources allocated when adding jack_gpio pins can be released
using snd_soc_jack_free_gpios function.

Signed-off-by: Misael Lopez Cruz <x0052729@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/soc.h  |  32 +++++++++++++
 sound/soc/soc-jack.c | 129 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 161 insertions(+)

(limited to 'include')

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 0e7735264169..a40bc6f316fc 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -16,6 +16,8 @@
 #include <linux/platform_device.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/control.h>
@@ -168,6 +170,9 @@ struct soc_enum;
 struct snd_soc_ac97_ops;
 struct snd_soc_jack;
 struct snd_soc_jack_pin;
+#ifdef CONFIG_GPIOLIB
+struct snd_soc_jack_gpio;
+#endif
 
 typedef int (*hw_write_t)(void *,const char* ,int);
 typedef int (*hw_read_t)(void *,char* ,int);
@@ -194,6 +199,12 @@ int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type,
 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 			  struct snd_soc_jack_pin *pins);
+#ifdef CONFIG_GPIOLIB
+int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
+			struct snd_soc_jack_gpio *gpios);
+void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
+			struct snd_soc_jack_gpio *gpios);
+#endif
 
 /* codec IO */
 #define snd_soc_read(codec, reg) codec->read(codec, reg)
@@ -264,6 +275,27 @@ struct snd_soc_jack_pin {
 	bool invert;
 };
 
+/**
+ * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
+ *
+ * @gpio:         gpio number
+ * @name:         gpio name
+ * @report:       value to report when jack detected
+ * @invert:       report presence in low state
+ * @debouce_time: debouce time in ms
+ */
+#ifdef CONFIG_GPIOLIB
+struct snd_soc_jack_gpio {
+	unsigned int gpio;
+	const char *name;
+	int report;
+	int invert;
+	int debounce_time;
+	struct snd_soc_jack *jack;
+	struct work_struct work;
+};
+#endif
+
 struct snd_soc_jack {
 	struct snd_jack *jack;
 	struct snd_soc_card *card;
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index ab64a30bedde..bdf2484c2220 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -14,6 +14,10 @@
 #include <sound/jack.h>
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
 
 /**
  * snd_soc_jack_new - Create a new jack
@@ -136,3 +140,128 @@ int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_jack_add_pins);
+
+#ifdef CONFIG_GPIOLIB
+/* gpio detect */
+void snd_soc_jack_gpio_detect(struct snd_soc_jack_gpio *gpio)
+{
+	struct snd_soc_jack *jack = gpio->jack;
+	int enable;
+	int report;
+
+	if (gpio->debounce_time > 0)
+		mdelay(gpio->debounce_time);
+
+	enable = gpio_get_value(gpio->gpio);
+	if (gpio->invert)
+		enable = !enable;
+
+	if (enable)
+		report = gpio->report;
+	else
+		report = 0;
+
+	snd_soc_jack_report(jack, report, gpio->report);
+}
+
+/* irq handler for gpio pin */
+static irqreturn_t gpio_handler(int irq, void *data)
+{
+	struct snd_soc_jack_gpio *gpio = data;
+
+	schedule_work(&gpio->work);
+
+	return IRQ_HANDLED;
+}
+
+/* gpio work */
+static void gpio_work(struct work_struct *work)
+{
+	struct snd_soc_jack_gpio *gpio;
+
+	gpio = container_of(work, struct snd_soc_jack_gpio, work);
+	snd_soc_jack_gpio_detect(gpio);
+}
+
+/**
+ * snd_soc_jack_add_gpios - Associate GPIO pins with an ASoC jack
+ *
+ * @jack:  ASoC jack
+ * @count: number of pins
+ * @gpios: array of gpio pins
+ *
+ * This function will request gpio, set data direction and request irq
+ * for each gpio in the array.
+ */
+int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
+			struct snd_soc_jack_gpio *gpios)
+{
+	int i, ret;
+
+	for (i = 0; i < count; i++) {
+		if (!gpio_is_valid(gpios[i].gpio)) {
+			printk(KERN_ERR "Invalid gpio %d\n",
+				gpios[i].gpio);
+			ret = -EINVAL;
+			goto undo;
+		}
+		if (!gpios[i].name) {
+			printk(KERN_ERR "No name for gpio %d\n",
+				gpios[i].gpio);
+			ret = -EINVAL;
+			goto undo;
+		}
+
+		ret = gpio_request(gpios[i].gpio, gpios[i].name);
+		if (ret)
+			goto undo;
+
+		ret = gpio_direction_input(gpios[i].gpio);
+		if (ret)
+			goto err;
+
+		ret = request_irq(gpio_to_irq(gpios[i].gpio),
+				gpio_handler,
+				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+				jack->card->dev->driver->name,
+				&gpios[i]);
+		if (ret)
+			goto err;
+
+		INIT_WORK(&gpios[i].work, gpio_work);
+		gpios[i].jack = jack;
+	}
+
+	return 0;
+
+err:
+	gpio_free(gpios[i].gpio);
+undo:
+	snd_soc_jack_free_gpios(jack, i, gpios);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_jack_add_gpios);
+
+/**
+ * snd_soc_jack_free_gpios - Release GPIO pins' resources of an ASoC jack
+ *
+ * @jack:  ASoC jack
+ * @count: number of pins
+ * @gpios: array of gpio pins
+ *
+ * Release gpio and irq resources for gpio pins associated with an ASoC jack.
+ */
+void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
+			struct snd_soc_jack_gpio *gpios)
+{
+	int i;
+
+	for (i = 0; i < count; i++) {
+		free_irq(gpio_to_irq(gpios[i].gpio), &gpios[i]);
+		gpio_free(gpios[i].gpio);
+		gpios[i].jack = NULL;
+	}
+}
+EXPORT_SYMBOL_GPL(snd_soc_jack_free_gpios);
+#endif	/* CONFIG_GPIOLIB */
-- 
cgit v1.2.3


From 6335d05548eece40092000aa91b64a50310d69d5 Mon Sep 17 00:00:00 2001
From: Eric Miao <eric.y.miao@gmail.com>
Date: Tue, 3 Mar 2009 09:41:00 +0800
Subject: ASoC: make ops a pointer in 'struct snd_soc_dai'

Considering the fact that most cpu_dai or codec_dai are using a same
'snd_soc_dai_ops' for several similar interfaces, 'ops' would be better
made a pointer instead, to make sharing easier and code a bit cleaner.

The patch below is rather preliminary since the asoc tree is being
actively developed, and this touches almost every piece of code,
(and possibly many others in development need to be changed as
well). Building of all codecs are OK, yet to every SoC, I didn't test
that.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/soc-dai.h          |   2 +-
 sound/soc/atmel/atmel_ssc_dai.c  |  33 +++++--------
 sound/soc/au1x/psc-ac97.c        |  10 ++--
 sound/soc/au1x/psc-i2s.c         |  12 +++--
 sound/soc/blackfin/bf5xx-i2s.c   |  14 +++---
 sound/soc/codecs/ac97.c          |   7 ++-
 sound/soc/codecs/ak4535.c        |  14 +++---
 sound/soc/codecs/cs4270.c        |  14 +++---
 sound/soc/codecs/ssm2602.c       |  20 ++++----
 sound/soc/codecs/tlv320aic23.c   |  18 ++++---
 sound/soc/codecs/tlv320aic26.c   |  14 +++---
 sound/soc/codecs/tlv320aic3x.c   |  14 +++---
 sound/soc/codecs/uda134x.c       |  18 ++++---
 sound/soc/codecs/uda1380.c       |  46 ++++++++++--------
 sound/soc/codecs/wm8350.c        |  20 ++++----
 sound/soc/codecs/wm8510.c        |  16 +++---
 sound/soc/codecs/wm8580.c        |  30 +++++++-----
 sound/soc/codecs/wm8728.c        |  12 +++--
 sound/soc/codecs/wm8731.c        |  18 ++++---
 sound/soc/codecs/wm8750.c        |  14 +++---
 sound/soc/codecs/wm8753.c        |  90 +++++++++++++++++++---------------
 sound/soc/codecs/wm8900.c        |  16 +++---
 sound/soc/codecs/wm8903.c        |  18 ++++---
 sound/soc/codecs/wm8971.c        |  14 +++---
 sound/soc/codecs/wm8990.c        |  18 ++++---
 sound/soc/codecs/wm9705.c        |   8 +--
 sound/soc/codecs/wm9712.c        |  14 ++++--
 sound/soc/codecs/wm9713.c        |  40 +++++++++------
 sound/soc/davinci/davinci-i2s.c  |  14 +++---
 sound/soc/fsl/fsl_ssi.c          |  18 ++++---
 sound/soc/fsl/mpc5200_psc_i2s.c  |  20 ++++----
 sound/soc/omap/omap-mcbsp.c      |  20 ++++----
 sound/soc/pxa/pxa-ssp.c          |  65 +++++++------------------
 sound/soc/pxa/pxa2xx-ac97.c      |  13 ++---
 sound/soc/pxa/pxa2xx-i2s.c       |  18 ++++---
 sound/soc/s3c24xx/s3c2412-i2s.c  |  16 +++---
 sound/soc/s3c24xx/s3c2443-ac97.c |  13 ++---
 sound/soc/s3c24xx/s3c24xx-i2s.c  |  16 +++---
 sound/soc/sh/ssi.c               |  30 +++++-------
 sound/soc/soc-core.c             | 102 +++++++++++++++++++++------------------
 40 files changed, 481 insertions(+), 428 deletions(-)

(limited to 'include')

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 24247f763608..13676472ddfc 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -203,7 +203,7 @@ struct snd_soc_dai {
 	int (*resume)(struct snd_soc_dai *dai);
 
 	/* ops */
-	struct snd_soc_dai_ops ops;
+	struct snd_soc_dai_ops *ops;
 
 	/* DAI capabilities */
 	struct snd_soc_pcm_stream capture;
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index ff0054b76502..e588e63f18d2 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -697,6 +697,15 @@ static int atmel_ssc_resume(struct snd_soc_dai *cpu_dai)
 #define ATMEL_SSC_FORMATS (SNDRV_PCM_FMTBIT_S8     | SNDRV_PCM_FMTBIT_S16_LE |\
 			  SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 
+static struct snd_soc_dai_ops atmel_ssc_dai_ops = {
+	.startup	= atmel_ssc_startup,
+	.shutdown	= atmel_ssc_shutdown,
+	.prepare	= atmel_ssc_prepare,
+	.hw_params	= atmel_ssc_hw_params,
+	.set_fmt	= atmel_ssc_set_dai_fmt,
+	.set_clkdiv	= atmel_ssc_set_dai_clkdiv,
+};
+
 struct snd_soc_dai atmel_ssc_dai[NUM_SSC_DEVICES] = {
 	{	.name = "atmel-ssc0",
 		.id = 0,
@@ -712,13 +721,7 @@ struct snd_soc_dai atmel_ssc_dai[NUM_SSC_DEVICES] = {
 			.channels_max = 2,
 			.rates = ATMEL_SSC_RATES,
 			.formats = ATMEL_SSC_FORMATS,},
-		.ops = {
-			.startup = atmel_ssc_startup,
-			.shutdown = atmel_ssc_shutdown,
-			.prepare = atmel_ssc_prepare,
-			.hw_params = atmel_ssc_hw_params,
-			.set_fmt = atmel_ssc_set_dai_fmt,
-			.set_clkdiv = atmel_ssc_set_dai_clkdiv,},
+		.ops = &atmel_ssc_dai_ops,
 		.private_data = &ssc_info[0],
 	},
 #if NUM_SSC_DEVICES == 3
@@ -736,13 +739,7 @@ struct snd_soc_dai atmel_ssc_dai[NUM_SSC_DEVICES] = {
 			.channels_max = 2,
 			.rates = ATMEL_SSC_RATES,
 			.formats = ATMEL_SSC_FORMATS,},
-		.ops = {
-			.startup = atmel_ssc_startup,
-			.shutdown = atmel_ssc_shutdown,
-			.prepare = atmel_ssc_prepare,
-			.hw_params = atmel_ssc_hw_params,
-			.set_fmt = atmel_ssc_set_dai_fmt,
-			.set_clkdiv = atmel_ssc_set_dai_clkdiv,},
+		.ops = &atmel_ssc_dai_ops,
 		.private_data = &ssc_info[1],
 	},
 	{	.name = "atmel-ssc2",
@@ -759,13 +756,7 @@ struct snd_soc_dai atmel_ssc_dai[NUM_SSC_DEVICES] = {
 			.channels_max = 2,
 			.rates = ATMEL_SSC_RATES,
 			.formats = ATMEL_SSC_FORMATS,},
-		.ops = {
-			.startup = atmel_ssc_startup,
-			.shutdown = atmel_ssc_shutdown,
-			.prepare = atmel_ssc_prepare,
-			.hw_params = atmel_ssc_hw_params,
-			.set_fmt = atmel_ssc_set_dai_fmt,
-			.set_clkdiv = atmel_ssc_set_dai_clkdiv,},
+		.ops = &atmel_ssc_dai_ops,
 		.private_data = &ssc_info[2],
 	},
 #endif
diff --git a/sound/soc/au1x/psc-ac97.c b/sound/soc/au1x/psc-ac97.c
index f0e30aec7f23..479d7bdf1865 100644
--- a/sound/soc/au1x/psc-ac97.c
+++ b/sound/soc/au1x/psc-ac97.c
@@ -342,6 +342,11 @@ static int au1xpsc_ac97_resume(struct snd_soc_dai *dai)
 	return 0;
 }
 
+static struct snd_soc_dai_ops au1xpsc_ac97_dai_ops = {
+	.trigger	= au1xpsc_ac97_trigger,
+	.hw_params	= au1xpsc_ac97_hw_params,
+};
+
 struct snd_soc_dai au1xpsc_ac97_dai = {
 	.name			= "au1xpsc_ac97",
 	.ac97_control		= 1,
@@ -361,10 +366,7 @@ struct snd_soc_dai au1xpsc_ac97_dai = {
 		.channels_min	= 2,
 		.channels_max	= 2,
 	},
-	.ops = {
-		.trigger	= au1xpsc_ac97_trigger,
-		.hw_params	= au1xpsc_ac97_hw_params,
-	},
+	.ops = &au1xpsc_ac97_dai_ops,
 };
 EXPORT_SYMBOL_GPL(au1xpsc_ac97_dai);
 
diff --git a/sound/soc/au1x/psc-i2s.c b/sound/soc/au1x/psc-i2s.c
index f916de4400ed..bb589327ee32 100644
--- a/sound/soc/au1x/psc-i2s.c
+++ b/sound/soc/au1x/psc-i2s.c
@@ -367,6 +367,12 @@ static int au1xpsc_i2s_resume(struct snd_soc_dai *cpu_dai)
 	return 0;
 }
 
+static struct snd_soc_dai_ops au1xpsc_i2s_dai_ops = {
+	.trigger	= au1xpsc_i2s_trigger,
+	.hw_params	= au1xpsc_i2s_hw_params,
+	.set_fmt	= au1xpsc_i2s_set_fmt,
+};
+
 struct snd_soc_dai au1xpsc_i2s_dai = {
 	.name			= "au1xpsc_i2s",
 	.probe			= au1xpsc_i2s_probe,
@@ -385,11 +391,7 @@ struct snd_soc_dai au1xpsc_i2s_dai = {
 		.channels_min	= 2,
 		.channels_max	= 8,	/* 2 without external help */
 	},
-	.ops = {
-		.trigger	= au1xpsc_i2s_trigger,
-		.hw_params	= au1xpsc_i2s_hw_params,
-		.set_fmt	= au1xpsc_i2s_set_fmt,
-	},
+	.ops = &au1xpsc_i2s_dai_ops,
 };
 EXPORT_SYMBOL(au1xpsc_i2s_dai);
 
diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c
index d1d95d2393fe..964824419678 100644
--- a/sound/soc/blackfin/bf5xx-i2s.c
+++ b/sound/soc/blackfin/bf5xx-i2s.c
@@ -287,6 +287,13 @@ static int bf5xx_i2s_resume(struct platform_device *pdev,
 #define BF5XX_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
 	SNDRV_PCM_FMTBIT_S32_LE)
 
+static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
+	.startup	= bf5xx_i2s_startup,
+	.shutdown	= bf5xx_i2s_shutdown,
+	.hw_params	= bf5xx_i2s_hw_params,
+	.set_fmt	= bf5xx_i2s_set_dai_fmt,
+};
+
 struct snd_soc_dai bf5xx_i2s_dai = {
 	.name = "bf5xx-i2s",
 	.id = 0,
@@ -304,12 +311,7 @@ struct snd_soc_dai bf5xx_i2s_dai = {
 		.channels_max = 2,
 		.rates = BF5XX_I2S_RATES,
 		.formats = BF5XX_I2S_FORMATS,},
-	.ops = {
-		.startup   = bf5xx_i2s_startup,
-		.shutdown  = bf5xx_i2s_shutdown,
-		.hw_params = bf5xx_i2s_hw_params,
-		.set_fmt = bf5xx_i2s_set_dai_fmt,
-	},
+	.ops = &bf5xx_i2s_dai_ops,
 };
 EXPORT_SYMBOL_GPL(bf5xx_i2s_dai);
 
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c
index 11f84b6e5cb8..b0d4af145b87 100644
--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -41,6 +41,10 @@ static int ac97_prepare(struct snd_pcm_substream *substream,
 		SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 |\
 		SNDRV_PCM_RATE_48000)
 
+static struct snd_soc_dai_ops ac97_dai_ops = {
+	.prepare	= ac97_prepare,
+};
+
 struct snd_soc_dai ac97_dai = {
 	.name = "AC97 HiFi",
 	.ac97_control = 1,
@@ -56,8 +60,7 @@ struct snd_soc_dai ac97_dai = {
 		.channels_max = 2,
 		.rates = STD_AC97_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.prepare = ac97_prepare,},
+	.ops = &ac97_dai_ops,
 };
 EXPORT_SYMBOL_GPL(ac97_dai);
 
diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c
index d56e6bb1fedb..1f63d387a2f4 100644
--- a/sound/soc/codecs/ak4535.c
+++ b/sound/soc/codecs/ak4535.c
@@ -421,6 +421,13 @@ static int ak4535_set_bias_level(struct snd_soc_codec *codec,
 		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
 		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
 
+static struct snd_soc_dai_ops ak4535_dai_ops = {
+	.hw_params	= ak4535_hw_params,
+	.set_fmt	= ak4535_set_dai_fmt,
+	.digital_mute	= ak4535_mute,
+	.set_sysclk	= ak4535_set_dai_sysclk,
+};
+
 struct snd_soc_dai ak4535_dai = {
 	.name = "AK4535",
 	.playback = {
@@ -435,12 +442,7 @@ struct snd_soc_dai ak4535_dai = {
 		.channels_max = 2,
 		.rates = AK4535_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.hw_params = ak4535_hw_params,
-		.set_fmt = ak4535_set_dai_fmt,
-		.digital_mute = ak4535_mute,
-		.set_sysclk = ak4535_set_dai_sysclk,
-	},
+	.ops = &ak4535_dai_ops,
 };
 EXPORT_SYMBOL_GPL(ak4535_dai);
 
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index f86f33cc1798..7ae3d6520e3f 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -503,6 +503,13 @@ static const struct snd_kcontrol_new cs4270_snd_controls[] = {
  */
 static struct snd_soc_codec *cs4270_codec;
 
+static struct snd_soc_dai_ops cs4270_dai_ops = {
+	.hw_params	= cs4270_hw_params,
+	.set_sysclk	= cs4270_set_dai_sysclk,
+	.set_fmt	= cs4270_set_dai_fmt,
+	.digital_mute	= cs4270_mute,
+};
+
 struct snd_soc_dai cs4270_dai = {
 	.name = "cs4270",
 	.playback = {
@@ -519,12 +526,7 @@ struct snd_soc_dai cs4270_dai = {
 		.rates = 0,
 		.formats = CS4270_FORMATS,
 	},
-	.ops = {
-		.hw_params = cs4270_hw_params,
-		.set_sysclk = cs4270_set_dai_sysclk,
-		.set_fmt = cs4270_set_dai_fmt,
-		.digital_mute = cs4270_mute,
-	},
+	.ops = &cs4270_dai_ops,
 };
 EXPORT_SYMBOL_GPL(cs4270_dai);
 
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index 58e225dadc7e..87f606c76822 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -506,6 +506,16 @@ static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 
+static struct snd_soc_dai_ops ssm2602_dai_ops = {
+	.startup	= ssm2602_startup,
+	.prepare	= ssm2602_pcm_prepare,
+	.hw_params	= ssm2602_hw_params,
+	.shutdown	= ssm2602_shutdown,
+	.digital_mute	= ssm2602_mute,
+	.set_sysclk	= ssm2602_set_dai_sysclk,
+	.set_fmt	= ssm2602_set_dai_fmt,
+};
+
 struct snd_soc_dai ssm2602_dai = {
 	.name = "SSM2602",
 	.playback = {
@@ -520,15 +530,7 @@ struct snd_soc_dai ssm2602_dai = {
 		.channels_max = 2,
 		.rates = SSM2602_RATES,
 		.formats = SSM2602_FORMATS,},
-	.ops = {
-		.startup = ssm2602_startup,
-		.prepare = ssm2602_pcm_prepare,
-		.hw_params = ssm2602_hw_params,
-		.shutdown = ssm2602_shutdown,
-		.digital_mute = ssm2602_mute,
-		.set_sysclk = ssm2602_set_dai_sysclk,
-		.set_fmt = ssm2602_set_dai_fmt,
-	}
+	.ops = &ssm2602_dai_ops,
 };
 EXPORT_SYMBOL_GPL(ssm2602_dai);
 
diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index 8b20c360adf5..c3f4afb5d017 100644
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -580,6 +580,15 @@ static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
 #define AIC23_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
 			 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
 
+static struct snd_soc_dai_ops tlv320aic23_dai_ops = {
+	.prepare	= tlv320aic23_pcm_prepare,
+	.hw_params	= tlv320aic23_hw_params,
+	.shutdown	= tlv320aic23_shutdown,
+	.digital_mute	= tlv320aic23_mute,
+	.set_fmt	= tlv320aic23_set_dai_fmt,
+	.set_sysclk	= tlv320aic23_set_dai_sysclk,
+};
+
 struct snd_soc_dai tlv320aic23_dai = {
 	.name = "tlv320aic23",
 	.playback = {
@@ -594,14 +603,7 @@ struct snd_soc_dai tlv320aic23_dai = {
 		    .channels_max = 2,
 		    .rates = AIC23_RATES,
 		    .formats = AIC23_FORMATS,},
-	.ops = {
-		.prepare = tlv320aic23_pcm_prepare,
-		.hw_params = tlv320aic23_hw_params,
-		.shutdown = tlv320aic23_shutdown,
-		.digital_mute = tlv320aic23_mute,
-		.set_fmt = tlv320aic23_set_dai_fmt,
-		.set_sysclk = tlv320aic23_set_dai_sysclk,
-	}
+	.ops = &tlv320aic23_dai_ops,
 };
 EXPORT_SYMBOL_GPL(tlv320aic23_dai);
 
diff --git a/sound/soc/codecs/tlv320aic26.c b/sound/soc/codecs/tlv320aic26.c
index 229e464cf713..a7f333fc579e 100644
--- a/sound/soc/codecs/tlv320aic26.c
+++ b/sound/soc/codecs/tlv320aic26.c
@@ -270,6 +270,13 @@ static int aic26_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 #define AIC26_FORMATS	(SNDRV_PCM_FMTBIT_S8     | SNDRV_PCM_FMTBIT_S16_BE |\
 			 SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE)
 
+static struct snd_soc_dai_ops aic26_dai_ops = {
+	.hw_params	= aic26_hw_params,
+	.digital_mute	= aic26_mute,
+	.set_sysclk	= aic26_set_sysclk,
+	.set_fmt	= aic26_set_fmt,
+};
+
 struct snd_soc_dai aic26_dai = {
 	.name = "tlv320aic26",
 	.playback = {
@@ -286,12 +293,7 @@ struct snd_soc_dai aic26_dai = {
 		.rates = AIC26_RATES,
 		.formats = AIC26_FORMATS,
 	},
-	.ops = {
-		.hw_params = aic26_hw_params,
-		.digital_mute = aic26_mute,
-		.set_sysclk = aic26_set_sysclk,
-		.set_fmt = aic26_set_fmt,
-	},
+	.ops = &aic26_dai_ops,
 };
 EXPORT_SYMBOL_GPL(aic26_dai);
 
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index d638e3f0728b..ab099f482487 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -1088,6 +1088,13 @@ EXPORT_SYMBOL_GPL(aic3x_button_pressed);
 #define AIC3X_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
 			 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
 
+static struct snd_soc_dai_ops aic3x_dai_ops = {
+	.hw_params	= aic3x_hw_params,
+	.digital_mute	= aic3x_mute,
+	.set_sysclk	= aic3x_set_dai_sysclk,
+	.set_fmt	= aic3x_set_dai_fmt,
+};
+
 struct snd_soc_dai aic3x_dai = {
 	.name = "tlv320aic3x",
 	.playback = {
@@ -1102,12 +1109,7 @@ struct snd_soc_dai aic3x_dai = {
 		.channels_max = 2,
 		.rates = AIC3X_RATES,
 		.formats = AIC3X_FORMATS,},
-	.ops = {
-		.hw_params = aic3x_hw_params,
-		.digital_mute = aic3x_mute,
-		.set_sysclk = aic3x_set_dai_sysclk,
-		.set_fmt = aic3x_set_dai_fmt,
-	}
+	.ops = &aic3x_dai_ops,
 };
 EXPORT_SYMBOL_GPL(aic3x_dai);
 
diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c
index 661599295ca7..ddefb8f80145 100644
--- a/sound/soc/codecs/uda134x.c
+++ b/sound/soc/codecs/uda134x.c
@@ -431,6 +431,15 @@ SOC_ENUM("PCM Playback De-emphasis", uda134x_mixer_enum[1]),
 SOC_SINGLE("DC Filter Enable Switch", UDA134X_STATUS0, 0, 1, 0),
 };
 
+static struct snd_soc_dai_ops uda134x_dai_ops = {
+	.startup	= uda134x_startup,
+	.shutdown	= uda134x_shutdown,
+	.hw_params	= uda134x_hw_params,
+	.digital_mute	= uda134x_mute,
+	.set_sysclk	= uda134x_set_dai_sysclk,
+	.set_fmt	= uda134x_set_dai_fmt,
+};
+
 struct snd_soc_dai uda134x_dai = {
 	.name = "UDA134X",
 	/* playback capabilities */
@@ -450,14 +459,7 @@ struct snd_soc_dai uda134x_dai = {
 		.formats = UDA134X_FORMATS,
 	},
 	/* pcm operations */
-	.ops = {
-		.startup = uda134x_startup,
-		.shutdown = uda134x_shutdown,
-		.hw_params = uda134x_hw_params,
-		.digital_mute = uda134x_mute,
-		.set_sysclk = uda134x_set_dai_sysclk,
-		.set_fmt = uda134x_set_dai_fmt,
-	}
+	.ops = &uda134x_dai_ops,
 };
 EXPORT_SYMBOL(uda134x_dai);
 
diff --git a/sound/soc/codecs/uda1380.c b/sound/soc/codecs/uda1380.c
index 5242b8156b38..cafa7684c0e7 100644
--- a/sound/soc/codecs/uda1380.c
+++ b/sound/soc/codecs/uda1380.c
@@ -583,6 +583,29 @@ static int uda1380_set_bias_level(struct snd_soc_codec *codec,
 		       SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
 		       SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
 
+static struct snd_soc_dai_ops uda1380_dai_ops = {
+	.hw_params	= uda1380_pcm_hw_params,
+	.shutdown	= uda1380_pcm_shutdown,
+	.prepare	= uda1380_pcm_prepare,
+	.digital_mute	= uda1380_mute,
+	.set_fmt	= uda1380_set_dai_fmt_both,
+};
+
+static struct snd_soc_dai_ops uda1380_dai_ops_playback = {
+	.hw_params	= uda1380_pcm_hw_params,
+	.shutdown	= uda1380_pcm_shutdown,
+	.prepare	= uda1380_pcm_prepare,
+	.digital_mute	= uda1380_mute,
+	.set_fmt	= uda1380_set_dai_fmt_playback,
+};
+
+static struct snd_soc_dai_ops uda1380_dai_ops_capture = {
+	.hw_params	= uda1380_pcm_hw_params,
+	.shutdown	= uda1380_pcm_shutdown,
+	.prepare	= uda1380_pcm_prepare,
+	.set_fmt	= uda1380_set_dai_fmt_capture,
+};
+
 struct snd_soc_dai uda1380_dai[] = {
 {
 	.name = "UDA1380",
@@ -598,13 +621,7 @@ struct snd_soc_dai uda1380_dai[] = {
 		.channels_max = 2,
 		.rates = UDA1380_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.hw_params = uda1380_pcm_hw_params,
-		.shutdown = uda1380_pcm_shutdown,
-		.prepare = uda1380_pcm_prepare,
-		.digital_mute = uda1380_mute,
-		.set_fmt = uda1380_set_dai_fmt_both,
-	},
+	.ops = &uda1380_dai_ops,
 },
 { /* playback only - dual interface */
 	.name = "UDA1380",
@@ -615,13 +632,7 @@ struct snd_soc_dai uda1380_dai[] = {
 		.rates = UDA1380_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,
 	},
-	.ops = {
-		.hw_params = uda1380_pcm_hw_params,
-		.shutdown = uda1380_pcm_shutdown,
-		.prepare = uda1380_pcm_prepare,
-		.digital_mute = uda1380_mute,
-		.set_fmt = uda1380_set_dai_fmt_playback,
-	},
+	.ops = &uda1380_dai_ops_playback,
 },
 { /* capture only - dual interface*/
 	.name = "UDA1380",
@@ -632,12 +643,7 @@ struct snd_soc_dai uda1380_dai[] = {
 		.rates = UDA1380_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,
 	},
-	.ops = {
-		.hw_params = uda1380_pcm_hw_params,
-		.shutdown = uda1380_pcm_shutdown,
-		.prepare = uda1380_pcm_prepare,
-		.set_fmt = uda1380_set_dai_fmt_capture,
-	},
+	.ops = &uda1380_dai_ops_capture,
 },
 };
 EXPORT_SYMBOL_GPL(uda1380_dai);
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index 359e5cc86f34..3b1d0993bed9 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -1538,6 +1538,16 @@ static int wm8350_remove(struct platform_device *pdev)
 			SNDRV_PCM_FMTBIT_S20_3LE |\
 			SNDRV_PCM_FMTBIT_S24_LE)
 
+static struct snd_soc_dai_ops wm8350_dai_ops = {
+	 .hw_params	= wm8350_pcm_hw_params,
+	 .digital_mute	= wm8350_mute,
+	 .trigger	= wm8350_pcm_trigger,
+	 .set_fmt	= wm8350_set_dai_fmt,
+	 .set_sysclk	= wm8350_set_dai_sysclk,
+	 .set_pll	= wm8350_set_fll,
+	 .set_clkdiv	= wm8350_set_clkdiv,
+};
+
 struct snd_soc_dai wm8350_dai = {
 	.name = "WM8350",
 	.playback = {
@@ -1554,15 +1564,7 @@ struct snd_soc_dai wm8350_dai = {
 		 .rates = WM8350_RATES,
 		 .formats = WM8350_FORMATS,
 	 },
-	.ops = {
-		 .hw_params = wm8350_pcm_hw_params,
-		 .digital_mute = wm8350_mute,
-		 .trigger = wm8350_pcm_trigger,
-		 .set_fmt = wm8350_set_dai_fmt,
-		 .set_sysclk = wm8350_set_dai_sysclk,
-		 .set_pll = wm8350_set_fll,
-		 .set_clkdiv = wm8350_set_clkdiv,
-	 },
+	.ops = &wm8350_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8350_dai);
 
diff --git a/sound/soc/codecs/wm8510.c b/sound/soc/codecs/wm8510.c
index f01078cfbd72..cc975a62fa5c 100644
--- a/sound/soc/codecs/wm8510.c
+++ b/sound/soc/codecs/wm8510.c
@@ -554,6 +554,14 @@ static int wm8510_set_bias_level(struct snd_soc_codec *codec,
 #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 	SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 
+static struct snd_soc_dai_ops wm8510_dai_ops = {
+	.hw_params	= wm8510_pcm_hw_params,
+	.digital_mute	= wm8510_mute,
+	.set_fmt	= wm8510_set_dai_fmt,
+	.set_clkdiv	= wm8510_set_dai_clkdiv,
+	.set_pll	= wm8510_set_dai_pll,
+};
+
 struct snd_soc_dai wm8510_dai = {
 	.name = "WM8510 HiFi",
 	.playback = {
@@ -568,13 +576,7 @@ struct snd_soc_dai wm8510_dai = {
 		.channels_max = 2,
 		.rates = WM8510_RATES,
 		.formats = WM8510_FORMATS,},
-	.ops = {
-		.hw_params = wm8510_pcm_hw_params,
-		.digital_mute = wm8510_mute,
-		.set_fmt = wm8510_set_dai_fmt,
-		.set_clkdiv = wm8510_set_dai_clkdiv,
-		.set_pll = wm8510_set_dai_pll,
-	},
+	.ops = &wm8510_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8510_dai);
 
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index d3c51ba5e6f9..ee0af23a1acc 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -771,6 +771,21 @@ static int wm8580_set_bias_level(struct snd_soc_codec *codec,
 #define WM8580_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 
+static struct snd_soc_dai_ops wm8580_dai_ops_playback = {
+	.hw_params	= wm8580_paif_hw_params,
+	.set_fmt	= wm8580_set_paif_dai_fmt,
+	.set_clkdiv	= wm8580_set_dai_clkdiv,
+	.set_pll	= wm8580_set_dai_pll,
+	.digital_mute	= wm8580_digital_mute,
+};
+
+static struct snd_soc_dai_ops wm8580_dai_ops_capture = {
+	.hw_params	= wm8580_paif_hw_params,
+	.set_fmt	= wm8580_set_paif_dai_fmt,
+	.set_clkdiv	= wm8580_set_dai_clkdiv,
+	.set_pll	= wm8580_set_dai_pll,
+};
+
 struct snd_soc_dai wm8580_dai[] = {
 	{
 		.name = "WM8580 PAIFRX",
@@ -782,13 +797,7 @@ struct snd_soc_dai wm8580_dai[] = {
 			.rates = SNDRV_PCM_RATE_8000_192000,
 			.formats = WM8580_FORMATS,
 		},
-		.ops = {
-			 .hw_params = wm8580_paif_hw_params,
-			 .set_fmt = wm8580_set_paif_dai_fmt,
-			 .set_clkdiv = wm8580_set_dai_clkdiv,
-			 .set_pll = wm8580_set_dai_pll,
-			 .digital_mute = wm8580_digital_mute,
-		 },
+		.ops = &wm8580_dai_ops_playback,
 	},
 	{
 		.name = "WM8580 PAIFTX",
@@ -800,12 +809,7 @@ struct snd_soc_dai wm8580_dai[] = {
 			.rates = SNDRV_PCM_RATE_8000_192000,
 			.formats = WM8580_FORMATS,
 		},
-		.ops = {
-			 .hw_params = wm8580_paif_hw_params,
-			 .set_fmt = wm8580_set_paif_dai_fmt,
-			 .set_clkdiv = wm8580_set_dai_clkdiv,
-			 .set_pll = wm8580_set_dai_pll,
-		 },
+		.ops = &wm8580_dai_ops_capture,
 	},
 };
 EXPORT_SYMBOL_GPL(wm8580_dai);
diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index f8363b308895..e7ff2121ede9 100644
--- a/sound/soc/codecs/wm8728.c
+++ b/sound/soc/codecs/wm8728.c
@@ -244,6 +244,12 @@ static int wm8728_set_bias_level(struct snd_soc_codec *codec,
 #define WM8728_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 	SNDRV_PCM_FMTBIT_S24_LE)
 
+static struct snd_soc_dai_ops wm8728_dai_ops = {
+	.hw_params	= wm8728_hw_params,
+	.digital_mute	= wm8728_mute,
+	.set_fmt	= wm8728_set_dai_fmt,
+};
+
 struct snd_soc_dai wm8728_dai = {
 	.name = "WM8728",
 	.playback = {
@@ -253,11 +259,7 @@ struct snd_soc_dai wm8728_dai = {
 		.rates = WM8728_RATES,
 		.formats = WM8728_FORMATS,
 	},
-	.ops = {
-		 .hw_params = wm8728_hw_params,
-		 .digital_mute = wm8728_mute,
-		 .set_fmt = wm8728_set_dai_fmt,
-	}
+	.ops = &wm8728_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8728_dai);
 
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 9e7ebcc2c491..e043e3f60008 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -433,6 +433,15 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec,
 #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 	SNDRV_PCM_FMTBIT_S24_LE)
 
+static struct snd_soc_dai_ops wm8731_dai_ops = {
+	.prepare	= wm8731_pcm_prepare,
+	.hw_params	= wm8731_hw_params,
+	.shutdown	= wm8731_shutdown,
+	.digital_mute	= wm8731_mute,
+	.set_sysclk	= wm8731_set_dai_sysclk,
+	.set_fmt	= wm8731_set_dai_fmt,
+};
+
 struct snd_soc_dai wm8731_dai = {
 	.name = "WM8731",
 	.playback = {
@@ -447,14 +456,7 @@ struct snd_soc_dai wm8731_dai = {
 		.channels_max = 2,
 		.rates = WM8731_RATES,
 		.formats = WM8731_FORMATS,},
-	.ops = {
-		.prepare = wm8731_pcm_prepare,
-		.hw_params = wm8731_hw_params,
-		.shutdown = wm8731_shutdown,
-		.digital_mute = wm8731_mute,
-		.set_sysclk = wm8731_set_dai_sysclk,
-		.set_fmt = wm8731_set_dai_fmt,
-	}
+	.ops = &wm8731_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8731_dai);
 
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c
index 96afb86addc6..b64509b01a49 100644
--- a/sound/soc/codecs/wm8750.c
+++ b/sound/soc/codecs/wm8750.c
@@ -679,6 +679,13 @@ static int wm8750_set_bias_level(struct snd_soc_codec *codec,
 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 	SNDRV_PCM_FMTBIT_S24_LE)
 
+static struct snd_soc_dai_ops wm8750_dai_ops = {
+	.hw_params	= wm8750_pcm_hw_params,
+	.digital_mute	= wm8750_mute,
+	.set_fmt	= wm8750_set_dai_fmt,
+	.set_sysclk	= wm8750_set_dai_sysclk,
+};
+
 struct snd_soc_dai wm8750_dai = {
 	.name = "WM8750",
 	.playback = {
@@ -693,12 +700,7 @@ struct snd_soc_dai wm8750_dai = {
 		.channels_max = 2,
 		.rates = WM8750_RATES,
 		.formats = WM8750_FORMATS,},
-	.ops = {
-		.hw_params = wm8750_pcm_hw_params,
-		.digital_mute = wm8750_mute,
-		.set_fmt = wm8750_set_dai_fmt,
-		.set_sysclk = wm8750_set_dai_sysclk,
-	},
+	.ops = &wm8750_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8750_dai);
 
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 7f353e935d71..cc6e57f9acf8 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1306,6 +1306,51 @@ static int wm8753_set_bias_level(struct snd_soc_codec *codec,
  * 3. Voice disabled - HIFI over HIFI
  * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
  */
+static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode1 = {
+	.hw_params	= wm8753_i2s_hw_params,
+	.digital_mute	= wm8753_mute,
+	.set_fmt	= wm8753_mode1h_set_dai_fmt,
+	.set_clkdiv	= wm8753_set_dai_clkdiv,
+	.set_pll	= wm8753_set_dai_pll,
+	.set_sysclk	= wm8753_set_dai_sysclk,
+};
+
+static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode1 = {
+	.hw_params	= wm8753_pcm_hw_params,
+	.digital_mute	= wm8753_mute,
+	.set_fmt	= wm8753_mode1v_set_dai_fmt,
+	.set_clkdiv	= wm8753_set_dai_clkdiv,
+	.set_pll	= wm8753_set_dai_pll,
+	.set_sysclk	= wm8753_set_dai_sysclk,
+};
+
+static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode2 = {
+	.hw_params	= wm8753_pcm_hw_params,
+	.digital_mute	= wm8753_mute,
+	.set_fmt	= wm8753_mode2_set_dai_fmt,
+	.set_clkdiv	= wm8753_set_dai_clkdiv,
+	.set_pll	= wm8753_set_dai_pll,
+	.set_sysclk	= wm8753_set_dai_sysclk,
+};
+
+static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode3	= {
+	.hw_params	= wm8753_i2s_hw_params,
+	.digital_mute	= wm8753_mute,
+	.set_fmt	= wm8753_mode3_4_set_dai_fmt,
+	.set_clkdiv	= wm8753_set_dai_clkdiv,
+	.set_pll	= wm8753_set_dai_pll,
+	.set_sysclk	= wm8753_set_dai_sysclk,
+};
+
+static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode4	= {
+	.hw_params	= wm8753_i2s_hw_params,
+	.digital_mute	= wm8753_mute,
+	.set_fmt	= wm8753_mode3_4_set_dai_fmt,
+	.set_clkdiv	= wm8753_set_dai_clkdiv,
+	.set_pll	= wm8753_set_dai_pll,
+	.set_sysclk	= wm8753_set_dai_sysclk,
+};
+
 static const struct snd_soc_dai wm8753_all_dai[] = {
 /* DAI HiFi mode 1 */
 {	.name = "WM8753 HiFi",
@@ -1322,14 +1367,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
 		.channels_max = 2,
 		.rates = WM8753_RATES,
 		.formats = WM8753_FORMATS},
-	.ops = {
-		.hw_params = wm8753_i2s_hw_params,
-		.digital_mute = wm8753_mute,
-		.set_fmt = wm8753_mode1h_set_dai_fmt,
-		.set_clkdiv = wm8753_set_dai_clkdiv,
-		.set_pll = wm8753_set_dai_pll,
-		.set_sysclk = wm8753_set_dai_sysclk,
-	},
+	.ops = &wm8753_dai_ops_hifi_mode1,
 },
 /* DAI Voice mode 1 */
 {	.name = "WM8753 Voice",
@@ -1346,14 +1384,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
 		.channels_max = 2,
 		.rates = WM8753_RATES,
 		.formats = WM8753_FORMATS,},
-	.ops = {
-		.hw_params = wm8753_pcm_hw_params,
-		.digital_mute = wm8753_mute,
-		.set_fmt = wm8753_mode1v_set_dai_fmt,
-		.set_clkdiv = wm8753_set_dai_clkdiv,
-		.set_pll = wm8753_set_dai_pll,
-		.set_sysclk = wm8753_set_dai_sysclk,
-	},
+	.ops = &wm8753_dai_ops_voice_mode1,
 },
 /* DAI HiFi mode 2 - dummy */
 {	.name = "WM8753 HiFi",
@@ -1374,14 +1405,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
 		.channels_max = 2,
 		.rates = WM8753_RATES,
 		.formats = WM8753_FORMATS,},
-	.ops = {
-		.hw_params = wm8753_pcm_hw_params,
-		.digital_mute = wm8753_mute,
-		.set_fmt = wm8753_mode2_set_dai_fmt,
-		.set_clkdiv = wm8753_set_dai_clkdiv,
-		.set_pll = wm8753_set_dai_pll,
-		.set_sysclk = wm8753_set_dai_sysclk,
-	},
+	.ops = &wm8753_dai_ops_voice_mode2,
 },
 /* DAI HiFi mode 3 */
 {	.name = "WM8753 HiFi",
@@ -1398,14 +1422,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
 		.channels_max = 2,
 		.rates = WM8753_RATES,
 		.formats = WM8753_FORMATS,},
-	.ops = {
-		.hw_params = wm8753_i2s_hw_params,
-		.digital_mute = wm8753_mute,
-		.set_fmt = wm8753_mode3_4_set_dai_fmt,
-		.set_clkdiv = wm8753_set_dai_clkdiv,
-		.set_pll = wm8753_set_dai_pll,
-		.set_sysclk = wm8753_set_dai_sysclk,
-	},
+	.ops = &wm8753_dai_ops_hifi_mode3,
 },
 /* DAI Voice mode 3 - dummy */
 {	.name = "WM8753 Voice",
@@ -1426,14 +1443,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
 		.channels_max = 2,
 		.rates = WM8753_RATES,
 		.formats = WM8753_FORMATS,},
-	.ops = {
-		.hw_params = wm8753_i2s_hw_params,
-		.digital_mute = wm8753_mute,
-		.set_fmt = wm8753_mode3_4_set_dai_fmt,
-		.set_clkdiv = wm8753_set_dai_clkdiv,
-		.set_pll = wm8753_set_dai_pll,
-		.set_sysclk = wm8753_set_dai_sysclk,
-	},
+	.ops = &wm8753_dai_ops_hifi_mode4,
 },
 /* DAI Voice mode 4 - dummy */
 {	.name = "WM8753 Voice",
diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index da5ca64f89bb..46c5ea1ff921 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -1088,6 +1088,14 @@ static int wm8900_digital_mute(struct snd_soc_dai *codec_dai, int mute)
 	(SNDRV_PCM_FORMAT_S16_LE | SNDRV_PCM_FORMAT_S20_3LE | \
 	 SNDRV_PCM_FORMAT_S24_LE)
 
+static struct snd_soc_dai_ops wm8900_dai_ops = {
+	.hw_params	= wm8900_hw_params,
+	.set_clkdiv	= wm8900_set_dai_clkdiv,
+	.set_pll	= wm8900_set_dai_pll,
+	.set_fmt	= wm8900_set_dai_fmt,
+	.digital_mute	= wm8900_digital_mute,
+};
+
 struct snd_soc_dai wm8900_dai = {
 	.name = "WM8900 HiFi",
 	.playback = {
@@ -1104,13 +1112,7 @@ struct snd_soc_dai wm8900_dai = {
 		.rates = WM8900_RATES,
 		.formats = WM8900_PCM_FORMATS,
 	 },
-	.ops = {
-		.hw_params = wm8900_hw_params,
-		 .set_clkdiv = wm8900_set_dai_clkdiv,
-		 .set_pll = wm8900_set_dai_pll,
-		 .set_fmt = wm8900_set_dai_fmt,
-		 .digital_mute = wm8900_digital_mute,
-	 },
+	.ops = &wm8900_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8900_dai);
 
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index c6fa8a71b4dd..8cf571f1a803 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1497,6 +1497,15 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream,
 			SNDRV_PCM_FMTBIT_S20_3LE |\
 			SNDRV_PCM_FMTBIT_S24_LE)
 
+static struct snd_soc_dai_ops wm8903_dai_ops = {
+	.startup	= wm8903_startup,
+	.shutdown	= wm8903_shutdown,
+	.hw_params	= wm8903_hw_params,
+	.digital_mute	= wm8903_digital_mute,
+	.set_fmt	= wm8903_set_dai_fmt,
+	.set_sysclk	= wm8903_set_dai_sysclk,
+};
+
 struct snd_soc_dai wm8903_dai = {
 	.name = "WM8903",
 	.playback = {
@@ -1513,14 +1522,7 @@ struct snd_soc_dai wm8903_dai = {
 		 .rates = WM8903_CAPTURE_RATES,
 		 .formats = WM8903_FORMATS,
 	 },
-	.ops = {
-		 .startup = wm8903_startup,
-		 .shutdown = wm8903_shutdown,
-		 .hw_params = wm8903_hw_params,
-		 .digital_mute = wm8903_digital_mute,
-		 .set_fmt = wm8903_set_dai_fmt,
-		 .set_sysclk = wm8903_set_dai_sysclk
-	}
+	.ops = &wm8903_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8903_dai);
 
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index 24d4c905a011..032dca22dbd3 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -604,6 +604,13 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec,
 #define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 	SNDRV_PCM_FMTBIT_S24_LE)
 
+static struct snd_soc_dai_ops wm8971_dai_ops = {
+	.hw_params	= wm8971_pcm_hw_params,
+	.digital_mute	= wm8971_mute,
+	.set_fmt	= wm8971_set_dai_fmt,
+	.set_sysclk	= wm8971_set_dai_sysclk,
+};
+
 struct snd_soc_dai wm8971_dai = {
 	.name = "WM8971",
 	.playback = {
@@ -618,12 +625,7 @@ struct snd_soc_dai wm8971_dai = {
 		.channels_max = 2,
 		.rates = WM8971_RATES,
 		.formats = WM8971_FORMATS,},
-	.ops = {
-		.hw_params = wm8971_pcm_hw_params,
-		.digital_mute = wm8971_mute,
-		.set_fmt = wm8971_set_dai_fmt,
-		.set_sysclk = wm8971_set_dai_sysclk,
-	},
+	.ops = &wm8971_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8971_dai);
 
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 1a38421f7594..c518c3e5aa3f 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -1332,6 +1332,15 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
  * 1. ADC/DAC on Primary Interface
  * 2. ADC on Primary Interface/DAC on secondary
  */
+static struct snd_soc_dai_ops wm8990_dai_ops = {
+	.hw_params	= wm8990_hw_params,
+	.digital_mute	= wm8990_mute,
+	.set_fmt	= wm8990_set_dai_fmt,
+	.set_clkdiv	= wm8990_set_dai_clkdiv,
+	.set_pll	= wm8990_set_dai_pll,
+	.set_sysclk	= wm8990_set_dai_sysclk,
+};
+
 struct snd_soc_dai wm8990_dai = {
 /* ADC/DAC on primary */
 	.name = "WM8990 ADC/DAC Primary",
@@ -1348,14 +1357,7 @@ struct snd_soc_dai wm8990_dai = {
 		.channels_max = 2,
 		.rates = WM8990_RATES,
 		.formats = WM8990_FORMATS,},
-	.ops = {
-		.hw_params = wm8990_hw_params,
-		.digital_mute = wm8990_mute,
-		.set_fmt = wm8990_set_dai_fmt,
-		.set_clkdiv = wm8990_set_dai_clkdiv,
-		.set_pll = wm8990_set_dai_pll,
-		.set_sysclk = wm8990_set_dai_sysclk,
-	},
+	.ops = &wm8990_dai_ops,
 };
 EXPORT_SYMBOL_GPL(wm8990_dai);
 
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index 2e9e06b2daaf..3265817c5c26 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -269,6 +269,10 @@ static int ac97_prepare(struct snd_pcm_substream *substream,
 			SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
 			SNDRV_PCM_RATE_48000)
 
+static struct snd_soc_dai_ops wm9705_dai_ops = {
+	.prepare	= ac97_prepare,
+};
+
 struct snd_soc_dai wm9705_dai[] = {
 	{
 		.name = "AC97 HiFi",
@@ -287,9 +291,7 @@ struct snd_soc_dai wm9705_dai[] = {
 			.rates = WM9705_AC97_RATES,
 			.formats = SNDRV_PCM_FMTBIT_S16_LE,
 		},
-		.ops = {
-			.prepare = ac97_prepare,
-		},
+		.ops = &wm9705_dai_ops,
 	},
 	{
 		.name = "AC97 Aux",
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index b3a8be77676e..765cf1e7369e 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -517,6 +517,14 @@ static int ac97_aux_prepare(struct snd_pcm_substream *substream,
 		SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 |\
 		SNDRV_PCM_RATE_48000)
 
+static struct snd_soc_dai_ops wm9712_dai_ops_hifi = {
+	.prepare	= ac97_prepare,
+};
+
+static struct snd_soc_dai_ops wm9712_dai_ops_aux = {
+	.prepare	= ac97_aux_prepare,
+};
+
 struct snd_soc_dai wm9712_dai[] = {
 {
 	.name = "AC97 HiFi",
@@ -533,8 +541,7 @@ struct snd_soc_dai wm9712_dai[] = {
 		.channels_max = 2,
 		.rates = WM9712_AC97_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.prepare = ac97_prepare,},
+	.ops = &wm9712_dai_ops_hifi,
 },
 {
 	.name = "AC97 Aux",
@@ -544,8 +551,7 @@ struct snd_soc_dai wm9712_dai[] = {
 		.channels_max = 1,
 		.rates = WM9712_AC97_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.prepare = ac97_aux_prepare,},
+	.ops = &wm9712_dai_ops_aux,
 }
 };
 EXPORT_SYMBOL_GPL(wm9712_dai);
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index a93aea5c1878..523bad077fa0 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -1005,6 +1005,27 @@ static int ac97_aux_prepare(struct snd_pcm_substream *substream,
 	(SNDRV_PCM_FORMAT_S16_LE | SNDRV_PCM_FORMAT_S20_3LE | \
 	 SNDRV_PCM_FORMAT_S24_LE)
 
+static struct snd_soc_dai_ops wm9713_dai_ops_hifi = {
+	.prepare	= ac97_hifi_prepare,
+	.set_clkdiv	= wm9713_set_dai_clkdiv,
+	.set_pll	= wm9713_set_dai_pll,
+};
+
+static struct snd_soc_dai_ops wm9713_dai_ops_aux = {
+	.prepare	= ac97_aux_prepare,
+	.set_clkdiv	= wm9713_set_dai_clkdiv,
+	.set_pll	= wm9713_set_dai_pll,
+};
+
+static struct snd_soc_dai_ops wm9713_dai_ops_voice = {
+	.hw_params	= wm9713_pcm_hw_params,
+	.shutdown	= wm9713_voiceshutdown,
+	.set_clkdiv	= wm9713_set_dai_clkdiv,
+	.set_pll	= wm9713_set_dai_pll,
+	.set_fmt	= wm9713_set_dai_fmt,
+	.set_tristate	= wm9713_set_dai_tristate,
+};
+
 struct snd_soc_dai wm9713_dai[] = {
 {
 	.name = "AC97 HiFi",
@@ -1021,10 +1042,7 @@ struct snd_soc_dai wm9713_dai[] = {
 		.channels_max = 2,
 		.rates = WM9713_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.prepare = ac97_hifi_prepare,
-		.set_clkdiv = wm9713_set_dai_clkdiv,
-		.set_pll = wm9713_set_dai_pll,},
+	.ops = &wm9713_dai_ops_hifi,
 	},
 	{
 	.name = "AC97 Aux",
@@ -1034,10 +1052,7 @@ struct snd_soc_dai wm9713_dai[] = {
 		.channels_max = 1,
 		.rates = WM9713_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.prepare = ac97_aux_prepare,
-		.set_clkdiv = wm9713_set_dai_clkdiv,
-		.set_pll = wm9713_set_dai_pll,},
+	.ops = &wm9713_dai_ops_aux,
 	},
 	{
 	.name = "WM9713 Voice",
@@ -1053,14 +1068,7 @@ struct snd_soc_dai wm9713_dai[] = {
 		.channels_max = 2,
 		.rates = WM9713_PCM_RATES,
 		.formats = WM9713_PCM_FORMATS,},
-	.ops = {
-		.hw_params = wm9713_pcm_hw_params,
-		.shutdown = wm9713_voiceshutdown,
-		.set_clkdiv = wm9713_set_dai_clkdiv,
-		.set_pll = wm9713_set_dai_pll,
-		.set_fmt = wm9713_set_dai_fmt,
-		.set_tristate = wm9713_set_dai_tristate,
-	},
+	.ops = &wm9713_dai_ops_voice,
 	},
 };
 EXPORT_SYMBOL_GPL(wm9713_dai);
diff --git a/sound/soc/davinci/davinci-i2s.c b/sound/soc/davinci/davinci-i2s.c
index 0fee779e3c76..ffdb9439d3d8 100644
--- a/sound/soc/davinci/davinci-i2s.c
+++ b/sound/soc/davinci/davinci-i2s.c
@@ -499,6 +499,13 @@ static void davinci_i2s_remove(struct platform_device *pdev,
 
 #define DAVINCI_I2S_RATES	SNDRV_PCM_RATE_8000_96000
 
+static struct snd_soc_dai_ops davinci_i2s_dai_ops = {
+	.startup	= davinci_i2s_startup,
+	.trigger	= davinci_i2s_trigger,
+	.hw_params	= davinci_i2s_hw_params,
+	.set_fmt	= davinci_i2s_set_dai_fmt,
+};
+
 struct snd_soc_dai davinci_i2s_dai = {
 	.name = "davinci-i2s",
 	.id = 0,
@@ -514,12 +521,7 @@ struct snd_soc_dai davinci_i2s_dai = {
 		.channels_max = 2,
 		.rates = DAVINCI_I2S_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.startup = davinci_i2s_startup,
-		.trigger = davinci_i2s_trigger,
-		.hw_params = davinci_i2s_hw_params,
-		.set_fmt = davinci_i2s_set_dai_fmt,
-	},
+	.ops = &davinci_i2s_dai_ops,
 };
 EXPORT_SYMBOL_GPL(davinci_i2s_dai);
 
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 6844009833db..0fddd437a7c9 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -562,6 +562,15 @@ static int fsl_ssi_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int format)
 /**
  * fsl_ssi_dai_template: template CPU DAI for the SSI
  */
+static struct snd_soc_dai_ops fsl_ssi_dai_ops = {
+	.startup	= fsl_ssi_startup,
+	.hw_params	= fsl_ssi_hw_params,
+	.shutdown	= fsl_ssi_shutdown,
+	.trigger	= fsl_ssi_trigger,
+	.set_sysclk	= fsl_ssi_set_sysclk,
+	.set_fmt	= fsl_ssi_set_fmt,
+};
+
 static struct snd_soc_dai fsl_ssi_dai_template = {
 	.playback = {
 		/* The SSI does not support monaural audio. */
@@ -576,14 +585,7 @@ static struct snd_soc_dai fsl_ssi_dai_template = {
 		.rates = FSLSSI_I2S_RATES,
 		.formats = FSLSSI_I2S_FORMATS,
 	},
-	.ops = {
-		.startup = fsl_ssi_startup,
-		.hw_params = fsl_ssi_hw_params,
-		.shutdown = fsl_ssi_shutdown,
-		.trigger = fsl_ssi_trigger,
-		.set_sysclk = fsl_ssi_set_sysclk,
-		.set_fmt = fsl_ssi_set_fmt,
-	},
+	.ops = &fsl_ssi_dai_ops,
 };
 
 /**
diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
index 9eb1ce185bd0..3aa729df27b5 100644
--- a/sound/soc/fsl/mpc5200_psc_i2s.c
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -468,6 +468,16 @@ static int psc_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int format)
 /**
  * psc_i2s_dai_template: template CPU Digital Audio Interface
  */
+static struct snd_soc_dai_ops psc_i2s_dai_ops = {
+	.startup	= psc_i2s_startup,
+	.hw_params	= psc_i2s_hw_params,
+	.hw_free	= psc_i2s_hw_free,
+	.shutdown	= psc_i2s_shutdown,
+	.trigger	= psc_i2s_trigger,
+	.set_sysclk	= psc_i2s_set_sysclk,
+	.set_fmt	= psc_i2s_set_fmt,
+};
+
 static struct snd_soc_dai psc_i2s_dai_template = {
 	.playback = {
 		.channels_min = 2,
@@ -481,15 +491,7 @@ static struct snd_soc_dai psc_i2s_dai_template = {
 		.rates = PSC_I2S_RATES,
 		.formats = PSC_I2S_FORMATS,
 	},
-	.ops = {
-		.startup = psc_i2s_startup,
-		.hw_params = psc_i2s_hw_params,
-		.hw_free = psc_i2s_hw_free,
-		.shutdown = psc_i2s_shutdown,
-		.trigger = psc_i2s_trigger,
-		.set_sysclk = psc_i2s_set_sysclk,
-		.set_fmt = psc_i2s_set_fmt,
-	},
+	.ops = &psc_i2s_dai_ops,
 };
 
 /* ---------------------------------------------------------------------
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 05dd5abcddf4..d6882be33452 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -461,6 +461,16 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
 	return err;
 }
 
+static struct snd_soc_dai_ops omap_mcbsp_dai_ops = {
+	.startup	= omap_mcbsp_dai_startup,
+	.shutdown	= omap_mcbsp_dai_shutdown,
+	.trigger	= omap_mcbsp_dai_trigger,
+	.hw_params	= omap_mcbsp_dai_hw_params,
+	.set_fmt	= omap_mcbsp_dai_set_dai_fmt,
+	.set_clkdiv	= omap_mcbsp_dai_set_clkdiv,
+	.set_sysclk	= omap_mcbsp_dai_set_dai_sysclk,
+};
+
 #define OMAP_MCBSP_DAI_BUILDER(link_id)				\
 {								\
 	.name = "omap-mcbsp-dai-"#link_id,			\
@@ -477,15 +487,7 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
 		.rates = OMAP_MCBSP_RATES,			\
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,		\
 	},							\
-	.ops = {						\
-		.startup = omap_mcbsp_dai_startup,		\
-		.shutdown = omap_mcbsp_dai_shutdown,		\
-		.trigger = omap_mcbsp_dai_trigger,		\
-		.hw_params = omap_mcbsp_dai_hw_params,		\
-		.set_fmt = omap_mcbsp_dai_set_dai_fmt,		\
-		.set_clkdiv = omap_mcbsp_dai_set_clkdiv,	\
-		.set_sysclk = omap_mcbsp_dai_set_dai_sysclk,	\
-	},							\
+	.ops = &omap_mcbsp_dai_ops,				\
 	.private_data = &mcbsp_data[(link_id)].bus_id,		\
 }
 
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 4a973ab710be..3e18064e86b2 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -784,6 +784,19 @@ static void pxa_ssp_remove(struct platform_device *pdev,
 			    SNDRV_PCM_FMTBIT_S24_LE |	\
 			    SNDRV_PCM_FMTBIT_S32_LE)
 
+static struct snd_soc_dai_ops pxa_ssp_dai_ops = {
+	.startup	= pxa_ssp_startup,
+	.shutdown	= pxa_ssp_shutdown,
+	.trigger	= pxa_ssp_trigger,
+	.hw_params	= pxa_ssp_hw_params,
+	.set_sysclk	= pxa_ssp_set_dai_sysclk,
+	.set_clkdiv	= pxa_ssp_set_dai_clkdiv,
+	.set_pll	= pxa_ssp_set_dai_pll,
+	.set_fmt	= pxa_ssp_set_dai_fmt,
+	.set_tdm_slot	= pxa_ssp_set_dai_tdm_slot,
+	.set_tristate	= pxa_ssp_set_dai_tristate,
+};
+
 struct snd_soc_dai pxa_ssp_dai[] = {
 	{
 		.name = "pxa2xx-ssp1",
@@ -804,18 +817,7 @@ struct snd_soc_dai pxa_ssp_dai[] = {
 			.rates = PXA_SSP_RATES,
 			.formats = PXA_SSP_FORMATS,
 		 },
-		.ops = {
-			.startup = pxa_ssp_startup,
-			.shutdown = pxa_ssp_shutdown,
-			.trigger = pxa_ssp_trigger,
-			.hw_params = pxa_ssp_hw_params,
-			.set_sysclk = pxa_ssp_set_dai_sysclk,
-			.set_clkdiv = pxa_ssp_set_dai_clkdiv,
-			.set_pll = pxa_ssp_set_dai_pll,
-			.set_fmt = pxa_ssp_set_dai_fmt,
-			.set_tdm_slot = pxa_ssp_set_dai_tdm_slot,
-			.set_tristate = pxa_ssp_set_dai_tristate,
-		},
+		.ops = &pxa_ssp_dai_ops,
 	},
 	{	.name = "pxa2xx-ssp2",
 		.id = 1,
@@ -835,18 +837,7 @@ struct snd_soc_dai pxa_ssp_dai[] = {
 			.rates = PXA_SSP_RATES,
 			.formats = PXA_SSP_FORMATS,
 		 },
-		.ops = {
-			.startup = pxa_ssp_startup,
-			.shutdown = pxa_ssp_shutdown,
-			.trigger = pxa_ssp_trigger,
-			.hw_params = pxa_ssp_hw_params,
-			.set_sysclk = pxa_ssp_set_dai_sysclk,
-			.set_clkdiv = pxa_ssp_set_dai_clkdiv,
-			.set_pll = pxa_ssp_set_dai_pll,
-			.set_fmt = pxa_ssp_set_dai_fmt,
-			.set_tdm_slot = pxa_ssp_set_dai_tdm_slot,
-			.set_tristate = pxa_ssp_set_dai_tristate,
-		},
+		.ops = &pxa_ssp_dai_ops,
 	},
 	{
 		.name = "pxa2xx-ssp3",
@@ -867,18 +858,7 @@ struct snd_soc_dai pxa_ssp_dai[] = {
 			.rates = PXA_SSP_RATES,
 			.formats = PXA_SSP_FORMATS,
 		 },
-		.ops = {
-			.startup = pxa_ssp_startup,
-			.shutdown = pxa_ssp_shutdown,
-			.trigger = pxa_ssp_trigger,
-			.hw_params = pxa_ssp_hw_params,
-			.set_sysclk = pxa_ssp_set_dai_sysclk,
-			.set_clkdiv = pxa_ssp_set_dai_clkdiv,
-			.set_pll = pxa_ssp_set_dai_pll,
-			.set_fmt = pxa_ssp_set_dai_fmt,
-			.set_tdm_slot = pxa_ssp_set_dai_tdm_slot,
-			.set_tristate = pxa_ssp_set_dai_tristate,
-		},
+		.ops = &pxa_ssp_dai_ops,
 	},
 	{
 		.name = "pxa2xx-ssp4",
@@ -899,18 +879,7 @@ struct snd_soc_dai pxa_ssp_dai[] = {
 			.rates = PXA_SSP_RATES,
 			.formats = PXA_SSP_FORMATS,
 		 },
-		.ops = {
-			.startup = pxa_ssp_startup,
-			.shutdown = pxa_ssp_shutdown,
-			.trigger = pxa_ssp_trigger,
-			.hw_params = pxa_ssp_hw_params,
-			.set_sysclk = pxa_ssp_set_dai_sysclk,
-			.set_clkdiv = pxa_ssp_set_dai_clkdiv,
-			.set_pll = pxa_ssp_set_dai_pll,
-			.set_fmt = pxa_ssp_set_dai_fmt,
-			.set_tdm_slot = pxa_ssp_set_dai_tdm_slot,
-			.set_tristate = pxa_ssp_set_dai_tristate,
-		},
+		.ops = &pxa_ssp_dai_ops,
 	},
 };
 EXPORT_SYMBOL_GPL(pxa_ssp_dai);
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index 812c2b4d3e07..11cd0f289c16 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -164,6 +164,10 @@ static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
 		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
 		SNDRV_PCM_RATE_48000)
 
+static struct snd_soc_dai_ops pxa_ac97_dai_ops = {
+	.hw_params	= pxa2xx_ac97_hw_params,
+};
+
 /*
  * There is only 1 physical AC97 interface for pxa2xx, but it
  * has extra fifo's that can be used for aux DACs and ADCs.
@@ -189,8 +193,7 @@ struct snd_soc_dai pxa_ac97_dai[] = {
 		.channels_max = 2,
 		.rates = PXA2XX_AC97_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.hw_params = pxa2xx_ac97_hw_params,},
+	.ops = &pxa_ac97_dai_ops,
 },
 {
 	.name = "pxa2xx-ac97-aux",
@@ -208,8 +211,7 @@ struct snd_soc_dai pxa_ac97_dai[] = {
 		.channels_max = 1,
 		.rates = PXA2XX_AC97_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.hw_params = pxa2xx_ac97_hw_aux_params,},
+	.ops = &pxa_ac97_dai_ops,
 },
 {
 	.name = "pxa2xx-ac97-mic",
@@ -221,8 +223,7 @@ struct snd_soc_dai pxa_ac97_dai[] = {
 		.channels_max = 1,
 		.rates = PXA2XX_AC97_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.hw_params = pxa2xx_ac97_hw_mic_params,},
+	.ops = &pxa_ac97_dai_ops,
 },
 };
 
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 83b59d7fe96e..e6c24408c5f9 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -304,6 +304,15 @@ static int pxa2xx_i2s_resume(struct snd_soc_dai *dai)
 		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
 		SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000)
 
+static struct snd_soc_dai_ops pxa_i2s_dai_ops = {
+	.startup	= pxa2xx_i2s_startup,
+	.shutdown	= pxa2xx_i2s_shutdown,
+	.trigger	= pxa2xx_i2s_trigger,
+	.hw_params	= pxa2xx_i2s_hw_params,
+	.set_fmt	= pxa2xx_i2s_set_dai_fmt,
+	.set_sysclk	= pxa2xx_i2s_set_dai_sysclk,
+};
+
 struct snd_soc_dai pxa_i2s_dai = {
 	.name = "pxa2xx-i2s",
 	.id = 0,
@@ -319,14 +328,7 @@ struct snd_soc_dai pxa_i2s_dai = {
 		.channels_max = 2,
 		.rates = PXA2XX_I2S_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.startup = pxa2xx_i2s_startup,
-		.shutdown = pxa2xx_i2s_shutdown,
-		.trigger = pxa2xx_i2s_trigger,
-		.hw_params = pxa2xx_i2s_hw_params,
-		.set_fmt = pxa2xx_i2s_set_dai_fmt,
-		.set_sysclk = pxa2xx_i2s_set_dai_sysclk,
-	},
+	.ops = &pxa_i2s_dai_ops,
 };
 
 EXPORT_SYMBOL_GPL(pxa_i2s_dai);
diff --git a/sound/soc/s3c24xx/s3c2412-i2s.c b/sound/soc/s3c24xx/s3c2412-i2s.c
index f3fc0aba0aaf..382d7eee53ef 100644
--- a/sound/soc/s3c24xx/s3c2412-i2s.c
+++ b/sound/soc/s3c24xx/s3c2412-i2s.c
@@ -708,6 +708,14 @@ static int s3c2412_i2s_resume(struct snd_soc_dai *dai)
 	SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
 	SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
 
+static struct snd_soc_dai_ops s3c2412_i2s_dai_ops = {
+	.trigger	= s3c2412_i2s_trigger,
+	.hw_params	= s3c2412_i2s_hw_params,
+	.set_fmt	= s3c2412_i2s_set_fmt,
+	.set_clkdiv	= s3c2412_i2s_set_clkdiv,
+	.set_sysclk	= s3c2412_i2s_set_sysclk,
+};
+
 struct snd_soc_dai s3c2412_i2s_dai = {
 	.name	= "s3c2412-i2s",
 	.id	= 0,
@@ -726,13 +734,7 @@ struct snd_soc_dai s3c2412_i2s_dai = {
 		.rates		= S3C2412_I2S_RATES,
 		.formats	= SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,
 	},
-	.ops = {
-		.trigger	= s3c2412_i2s_trigger,
-		.hw_params	= s3c2412_i2s_hw_params,
-		.set_fmt	= s3c2412_i2s_set_fmt,
-		.set_clkdiv	= s3c2412_i2s_set_clkdiv,
-		.set_sysclk	= s3c2412_i2s_set_sysclk,
-	},
+	.ops = &s3c2412_i2s_dai_ops,
 };
 EXPORT_SYMBOL_GPL(s3c2412_i2s_dai);
 
diff --git a/sound/soc/s3c24xx/s3c2443-ac97.c b/sound/soc/s3c24xx/s3c2443-ac97.c
index 5822d2dd49ba..83ea623234e7 100644
--- a/sound/soc/s3c24xx/s3c2443-ac97.c
+++ b/sound/soc/s3c24xx/s3c2443-ac97.c
@@ -355,6 +355,11 @@ static int s3c2443_ac97_mic_trigger(struct snd_pcm_substream *substream,
 		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
 		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
 
+static struct snd_soc_dai_ops s3c2443_ac97_dai_ops = {
+	.hw_params	= s3c2443_ac97_hw_params,
+	.trigger	= s3c2443_ac97_trigger,
+};
+
 struct snd_soc_dai s3c2443_ac97_dai[] = {
 {
 	.name = "s3c2443-ac97",
@@ -374,9 +379,7 @@ struct snd_soc_dai s3c2443_ac97_dai[] = {
 		.channels_max = 2,
 		.rates = s3c2443_AC97_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.hw_params = s3c2443_ac97_hw_params,
-		.trigger = s3c2443_ac97_trigger},
+	.ops = &s3c2443_ac97_dai_ops,
 },
 {
 	.name = "pxa2xx-ac97-mic",
@@ -388,9 +391,7 @@ struct snd_soc_dai s3c2443_ac97_dai[] = {
 		.channels_max = 1,
 		.rates = s3c2443_AC97_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.hw_params = s3c2443_ac97_hw_mic_params,
-		.trigger = s3c2443_ac97_mic_trigger,},
+	.ops = &s3c2443_ac97_dai_ops,
 },
 };
 EXPORT_SYMBOL_GPL(s3c2443_ac97_dai);
diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.c b/sound/soc/s3c24xx/s3c24xx-i2s.c
index 1c2b05497107..4473fb584c4c 100644
--- a/sound/soc/s3c24xx/s3c24xx-i2s.c
+++ b/sound/soc/s3c24xx/s3c24xx-i2s.c
@@ -456,6 +456,14 @@ static int s3c24xx_i2s_resume(struct snd_soc_dai *cpu_dai)
 	SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
 	SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
 
+static struct snd_soc_dai_ops s3c24xx_i2s_dai_ops = {
+	.trigger	= s3c24xx_i2s_trigger,
+	.hw_params	= s3c24xx_i2s_hw_params,
+	.set_fmt	= s3c24xx_i2s_set_fmt,
+	.set_clkdiv	= s3c24xx_i2s_set_clkdiv,
+	.set_sysclk	= s3c24xx_i2s_set_sysclk,
+};
+
 struct snd_soc_dai s3c24xx_i2s_dai = {
 	.name = "s3c24xx-i2s",
 	.id = 0,
@@ -472,13 +480,7 @@ struct snd_soc_dai s3c24xx_i2s_dai = {
 		.channels_max = 2,
 		.rates = S3C24XX_I2S_RATES,
 		.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
-	.ops = {
-		.trigger = s3c24xx_i2s_trigger,
-		.hw_params = s3c24xx_i2s_hw_params,
-		.set_fmt = s3c24xx_i2s_set_fmt,
-		.set_clkdiv = s3c24xx_i2s_set_clkdiv,
-		.set_sysclk = s3c24xx_i2s_set_sysclk,
-	},
+	.ops = &s3c24xx_i2s_dai_ops,
 };
 EXPORT_SYMBOL_GPL(s3c24xx_i2s_dai);
 
diff --git a/sound/soc/sh/ssi.c b/sound/soc/sh/ssi.c
index d1e5390fddeb..56fa0872abbb 100644
--- a/sound/soc/sh/ssi.c
+++ b/sound/soc/sh/ssi.c
@@ -336,6 +336,16 @@ static int ssi_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 	 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3LE |	\
 	 SNDRV_PCM_FMTBIT_S32_LE  | SNDRV_PCM_FMTBIT_U32_LE)
 
+static struct snd_soc_dai_ops ssi_dai_ops = {
+	.startup	= ssi_startup,
+	.shutdown	= ssi_shutdown,
+	.trigger	= ssi_trigger,
+	.hw_params	= ssi_hw_params,
+	.set_sysclk	= ssi_set_sysclk,
+	.set_clkdiv	= ssi_set_clkdiv,
+	.set_fmt	= ssi_set_fmt,
+};
+
 struct snd_soc_dai sh4_ssi_dai[] = {
 {
 	.name			= "SSI0",
@@ -352,15 +362,7 @@ struct snd_soc_dai sh4_ssi_dai[] = {
 		.channels_min	= 2,
 		.channels_max	= 8,
 	},
-	.ops = {
-		.startup	= ssi_startup,
-		.shutdown	= ssi_shutdown,
-		.trigger	= ssi_trigger,
-		.hw_params	= ssi_hw_params,
-		.set_sysclk	= ssi_set_sysclk,
-		.set_clkdiv	= ssi_set_clkdiv,
-		.set_fmt	= ssi_set_fmt,
-	},
+	.ops = &ssi_dai_ops,
 },
 #ifdef CONFIG_CPU_SUBTYPE_SH7760
 {
@@ -378,15 +380,7 @@ struct snd_soc_dai sh4_ssi_dai[] = {
 		.channels_min	= 2,
 		.channels_max	= 8,
 	},
-	.ops = {
-		.startup	= ssi_startup,
-		.shutdown	= ssi_shutdown,
-		.trigger	= ssi_trigger,
-		.hw_params	= ssi_hw_params,
-		.set_sysclk	= ssi_set_sysclk,
-		.set_clkdiv	= ssi_set_clkdiv,
-		.set_fmt	= ssi_set_fmt,
-	},
+	.ops = &ssi_dai_ops,
 },
 #endif
 };
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index d4b90d82a098..16518329f6b2 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -133,8 +133,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	mutex_lock(&pcm_mutex);
 
 	/* startup the audio subsystem */
-	if (cpu_dai->ops.startup) {
-		ret = cpu_dai->ops.startup(substream, cpu_dai);
+	if (cpu_dai->ops->startup) {
+		ret = cpu_dai->ops->startup(substream, cpu_dai);
 		if (ret < 0) {
 			printk(KERN_ERR "asoc: can't open interface %s\n",
 				cpu_dai->name);
@@ -150,8 +150,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		}
 	}
 
-	if (codec_dai->ops.startup) {
-		ret = codec_dai->ops.startup(substream, codec_dai);
+	if (codec_dai->ops->startup) {
+		ret = codec_dai->ops->startup(substream, codec_dai);
 		if (ret < 0) {
 			printk(KERN_ERR "asoc: can't open codec %s\n",
 				codec_dai->name);
@@ -247,8 +247,8 @@ codec_dai_err:
 		platform->pcm_ops->close(substream);
 
 platform_err:
-	if (cpu_dai->ops.shutdown)
-		cpu_dai->ops.shutdown(substream, cpu_dai);
+	if (cpu_dai->ops->shutdown)
+		cpu_dai->ops->shutdown(substream, cpu_dai);
 out:
 	mutex_unlock(&pcm_mutex);
 	return ret;
@@ -340,11 +340,11 @@ static int soc_codec_close(struct snd_pcm_substream *substream)
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 		snd_soc_dai_digital_mute(codec_dai, 1);
 
-	if (cpu_dai->ops.shutdown)
-		cpu_dai->ops.shutdown(substream, cpu_dai);
+	if (cpu_dai->ops->shutdown)
+		cpu_dai->ops->shutdown(substream, cpu_dai);
 
-	if (codec_dai->ops.shutdown)
-		codec_dai->ops.shutdown(substream, codec_dai);
+	if (codec_dai->ops->shutdown)
+		codec_dai->ops->shutdown(substream, codec_dai);
 
 	if (machine->ops && machine->ops->shutdown)
 		machine->ops->shutdown(substream);
@@ -408,16 +408,16 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 		}
 	}
 
-	if (codec_dai->ops.prepare) {
-		ret = codec_dai->ops.prepare(substream, codec_dai);
+	if (codec_dai->ops->prepare) {
+		ret = codec_dai->ops->prepare(substream, codec_dai);
 		if (ret < 0) {
 			printk(KERN_ERR "asoc: codec DAI prepare error\n");
 			goto out;
 		}
 	}
 
-	if (cpu_dai->ops.prepare) {
-		ret = cpu_dai->ops.prepare(substream, cpu_dai);
+	if (cpu_dai->ops->prepare) {
+		ret = cpu_dai->ops->prepare(substream, cpu_dai);
 		if (ret < 0) {
 			printk(KERN_ERR "asoc: cpu DAI prepare error\n");
 			goto out;
@@ -494,8 +494,8 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 		}
 	}
 
-	if (codec_dai->ops.hw_params) {
-		ret = codec_dai->ops.hw_params(substream, params, codec_dai);
+	if (codec_dai->ops->hw_params) {
+		ret = codec_dai->ops->hw_params(substream, params, codec_dai);
 		if (ret < 0) {
 			printk(KERN_ERR "asoc: can't set codec %s hw params\n",
 				codec_dai->name);
@@ -503,8 +503,8 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 		}
 	}
 
-	if (cpu_dai->ops.hw_params) {
-		ret = cpu_dai->ops.hw_params(substream, params, cpu_dai);
+	if (cpu_dai->ops->hw_params) {
+		ret = cpu_dai->ops->hw_params(substream, params, cpu_dai);
 		if (ret < 0) {
 			printk(KERN_ERR "asoc: interface %s hw params failed\n",
 				cpu_dai->name);
@@ -526,12 +526,12 @@ out:
 	return ret;
 
 platform_err:
-	if (cpu_dai->ops.hw_free)
-		cpu_dai->ops.hw_free(substream, cpu_dai);
+	if (cpu_dai->ops->hw_free)
+		cpu_dai->ops->hw_free(substream, cpu_dai);
 
 interface_err:
-	if (codec_dai->ops.hw_free)
-		codec_dai->ops.hw_free(substream, codec_dai);
+	if (codec_dai->ops->hw_free)
+		codec_dai->ops->hw_free(substream, codec_dai);
 
 codec_err:
 	if (machine->ops && machine->ops->hw_free)
@@ -570,11 +570,11 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 		platform->pcm_ops->hw_free(substream);
 
 	/* now free hw params for the DAI's  */
-	if (codec_dai->ops.hw_free)
-		codec_dai->ops.hw_free(substream, codec_dai);
+	if (codec_dai->ops->hw_free)
+		codec_dai->ops->hw_free(substream, codec_dai);
 
-	if (cpu_dai->ops.hw_free)
-		cpu_dai->ops.hw_free(substream, cpu_dai);
+	if (cpu_dai->ops->hw_free)
+		cpu_dai->ops->hw_free(substream, cpu_dai);
 
 	mutex_unlock(&pcm_mutex);
 	return 0;
@@ -591,8 +591,8 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	struct snd_soc_dai *codec_dai = machine->codec_dai;
 	int ret;
 
-	if (codec_dai->ops.trigger) {
-		ret = codec_dai->ops.trigger(substream, cmd, codec_dai);
+	if (codec_dai->ops->trigger) {
+		ret = codec_dai->ops->trigger(substream, cmd, codec_dai);
 		if (ret < 0)
 			return ret;
 	}
@@ -603,8 +603,8 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 			return ret;
 	}
 
-	if (cpu_dai->ops.trigger) {
-		ret = cpu_dai->ops.trigger(substream, cmd, cpu_dai);
+	if (cpu_dai->ops->trigger) {
+		ret = cpu_dai->ops->trigger(substream, cmd, cpu_dai);
 		if (ret < 0)
 			return ret;
 	}
@@ -645,8 +645,8 @@ static int soc_suspend(struct platform_device *pdev, pm_message_t state)
 	/* mute any active DAC's */
 	for (i = 0; i < card->num_links; i++) {
 		struct snd_soc_dai *dai = card->dai_link[i].codec_dai;
-		if (dai->ops.digital_mute && dai->playback.active)
-			dai->ops.digital_mute(dai, 1);
+		if (dai->ops->digital_mute && dai->playback.active)
+			dai->ops->digital_mute(dai, 1);
 	}
 
 	/* suspend all pcms */
@@ -741,8 +741,8 @@ static void soc_resume_deferred(struct work_struct *work)
 	/* unmute any active DACs */
 	for (i = 0; i < card->num_links; i++) {
 		struct snd_soc_dai *dai = card->dai_link[i].codec_dai;
-		if (dai->ops.digital_mute && dai->playback.active)
-			dai->ops.digital_mute(dai, 0);
+		if (dai->ops->digital_mute && dai->playback.active)
+			dai->ops->digital_mute(dai, 0);
 	}
 
 	for (i = 0; i < card->num_links; i++) {
@@ -2051,8 +2051,8 @@ EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
 	unsigned int freq, int dir)
 {
-	if (dai->ops.set_sysclk)
-		return dai->ops.set_sysclk(dai, clk_id, freq, dir);
+	if (dai->ops->set_sysclk)
+		return dai->ops->set_sysclk(dai, clk_id, freq, dir);
 	else
 		return -EINVAL;
 }
@@ -2071,8 +2071,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
 	int div_id, int div)
 {
-	if (dai->ops.set_clkdiv)
-		return dai->ops.set_clkdiv(dai, div_id, div);
+	if (dai->ops->set_clkdiv)
+		return dai->ops->set_clkdiv(dai, div_id, div);
 	else
 		return -EINVAL;
 }
@@ -2090,8 +2090,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
 int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
 	int pll_id, unsigned int freq_in, unsigned int freq_out)
 {
-	if (dai->ops.set_pll)
-		return dai->ops.set_pll(dai, pll_id, freq_in, freq_out);
+	if (dai->ops->set_pll)
+		return dai->ops->set_pll(dai, pll_id, freq_in, freq_out);
 	else
 		return -EINVAL;
 }
@@ -2106,8 +2106,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
  */
 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
-	if (dai->ops.set_fmt)
-		return dai->ops.set_fmt(dai, fmt);
+	if (dai->ops->set_fmt)
+		return dai->ops->set_fmt(dai, fmt);
 	else
 		return -EINVAL;
 }
@@ -2125,8 +2125,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
 	unsigned int mask, int slots)
 {
-	if (dai->ops.set_sysclk)
-		return dai->ops.set_tdm_slot(dai, mask, slots);
+	if (dai->ops->set_sysclk)
+		return dai->ops->set_tdm_slot(dai, mask, slots);
 	else
 		return -EINVAL;
 }
@@ -2141,8 +2141,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
  */
 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
 {
-	if (dai->ops.set_sysclk)
-		return dai->ops.set_tristate(dai, tristate);
+	if (dai->ops->set_sysclk)
+		return dai->ops->set_tristate(dai, tristate);
 	else
 		return -EINVAL;
 }
@@ -2157,8 +2157,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
  */
 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute)
 {
-	if (dai->ops.digital_mute)
-		return dai->ops.digital_mute(dai, mute);
+	if (dai->ops->digital_mute)
+		return dai->ops->digital_mute(dai, mute);
 	else
 		return -EINVAL;
 }
@@ -2211,6 +2211,9 @@ static int snd_soc_unregister_card(struct snd_soc_card *card)
 	return 0;
 }
 
+static struct snd_soc_dai_ops null_dai_ops = {
+};
+
 /**
  * snd_soc_register_dai - Register a DAI with the ASoC core
  *
@@ -2225,6 +2228,9 @@ int snd_soc_register_dai(struct snd_soc_dai *dai)
 	if (!dai->dev)
 		printk(KERN_WARNING "No device for DAI %s\n", dai->name);
 
+	if (!dai->ops)
+		dai->ops = &null_dai_ops;
+
 	INIT_LIST_HEAD(&dai->list);
 
 	mutex_lock(&client_mutex);
-- 
cgit v1.2.3


From 8150bc886be5ce3cc301a2baca1fcf2cf7bd7f39 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben@simtec.co.uk>
Date: Wed, 4 Mar 2009 00:49:26 +0000
Subject: S3C24XX: Move and update IIS headers

Move the IIS headers to their correct place.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 arch/arm/mach-s3c2410/dma.c                       |  2 +-
 arch/arm/mach-s3c2410/include/mach/hardware.h     |  3 -
 arch/arm/mach-s3c2410/include/mach/io.h           |  2 +-
 arch/arm/mach-s3c2412/dma.c                       |  4 +-
 arch/arm/mach-s3c2440/dma.c                       |  2 +-
 arch/arm/mach-s3c2443/dma.c                       |  2 +-
 arch/arm/mach-shark/include/mach/io.h             |  2 +-
 arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h | 72 +++++++++++++++++++++
 arch/arm/plat-s3c24xx/clock-dclk.c                |  1 +
 arch/arm/plat-s3c24xx/include/plat/regs-iis.h     | 77 +++++++++++++++++++++++
 include/asm-arm/plat-s3c24xx/regs-iis.h           | 77 -----------------------
 include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h   | 72 ---------------------
 sound/soc/s3c24xx/neo1973_wm8753.c                |  2 +-
 sound/soc/s3c24xx/s3c2412-i2s.c                   |  6 +-
 sound/soc/s3c24xx/s3c24xx-i2s.c                   |  2 +-
 sound/soc/s3c24xx/s3c24xx_uda134x.c               |  2 +-
 16 files changed, 162 insertions(+), 166 deletions(-)
 create mode 100644 arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h
 create mode 100644 arch/arm/plat-s3c24xx/include/plat/regs-iis.h
 delete mode 100644 include/asm-arm/plat-s3c24xx/regs-iis.h
 delete mode 100644 include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h

(limited to 'include')

diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c
index 552b4c778fdc..440c014e24b3 100644
--- a/arch/arm/mach-s3c2410/dma.c
+++ b/arch/arm/mach-s3c2410/dma.c
@@ -28,7 +28,7 @@
 #include <mach/regs-mem.h>
 #include <mach/regs-lcd.h>
 #include <mach/regs-sdi.h>
-#include <asm/plat-s3c24xx/regs-iis.h>
+#include <plat/regs-iis.h>
 #include <plat/regs-spi.h>
 
 static struct s3c24xx_dma_map __initdata s3c2410_dma_mappings[] = {
diff --git a/arch/arm/mach-s3c2410/include/mach/hardware.h b/arch/arm/mach-s3c2410/include/mach/hardware.h
index 74d5a1a4024c..db72beb61d7c 100644
--- a/arch/arm/mach-s3c2410/include/mach/hardware.h
+++ b/arch/arm/mach-s3c2410/include/mach/hardware.h
@@ -131,7 +131,4 @@ extern int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state);
 
 /* machine specific hardware definitions should go after this */
 
-/* currently here until moved into config (todo) */
-#define CONFIG_NO_MULTIWORD_IO
-
 #endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-s3c2410/include/mach/io.h b/arch/arm/mach-s3c2410/include/mach/io.h
index 9813dbf2ae4f..c477771c0924 100644
--- a/arch/arm/mach-s3c2410/include/mach/io.h
+++ b/arch/arm/mach-s3c2410/include/mach/io.h
@@ -9,7 +9,7 @@
 #ifndef __ASM_ARM_ARCH_IO_H
 #define __ASM_ARM_ARCH_IO_H
 
-#include <mach/hardware.h>
+#include <mach/map.h>
 
 #define IO_SPACE_LIMIT 0xffffffff
 
diff --git a/arch/arm/mach-s3c2412/dma.c b/arch/arm/mach-s3c2412/dma.c
index 919856c9433f..9e3478506c6f 100644
--- a/arch/arm/mach-s3c2412/dma.c
+++ b/arch/arm/mach-s3c2412/dma.c
@@ -29,8 +29,8 @@
 #include <mach/regs-mem.h>
 #include <mach/regs-lcd.h>
 #include <mach/regs-sdi.h>
-#include <asm/plat-s3c24xx/regs-s3c2412-iis.h>
-#include <asm/plat-s3c24xx/regs-iis.h>
+#include <plat/regs-s3c2412-iis.h>
+#include <plat/regs-iis.h>
 #include <plat/regs-spi.h>
 
 #define MAP(x) { (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID }
diff --git a/arch/arm/mach-s3c2440/dma.c b/arch/arm/mach-s3c2440/dma.c
index 5b5ee0b8f4e0..69b6cf34df47 100644
--- a/arch/arm/mach-s3c2440/dma.c
+++ b/arch/arm/mach-s3c2440/dma.c
@@ -28,7 +28,7 @@
 #include <mach/regs-mem.h>
 #include <mach/regs-lcd.h>
 #include <mach/regs-sdi.h>
-#include <asm/plat-s3c24xx/regs-iis.h>
+#include <plat/regs-iis.h>
 #include <plat/regs-spi.h>
 
 static struct s3c24xx_dma_map __initdata s3c2440_dma_mappings[] = {
diff --git a/arch/arm/mach-s3c2443/dma.c b/arch/arm/mach-s3c2443/dma.c
index 2a58a4d5aa5a..8430e5829186 100644
--- a/arch/arm/mach-s3c2443/dma.c
+++ b/arch/arm/mach-s3c2443/dma.c
@@ -29,7 +29,7 @@
 #include <mach/regs-mem.h>
 #include <mach/regs-lcd.h>
 #include <mach/regs-sdi.h>
-#include <asm/plat-s3c24xx/regs-iis.h>
+#include <plat/regs-iis.h>
 #include <plat/regs-spi.h>
 
 #define MAP(x) { \
diff --git a/arch/arm/mach-shark/include/mach/io.h b/arch/arm/mach-shark/include/mach/io.h
index c5cee829fc87..8ca7d7f09bdc 100644
--- a/arch/arm/mach-shark/include/mach/io.h
+++ b/arch/arm/mach-shark/include/mach/io.h
@@ -14,7 +14,7 @@
 #define PCIO_BASE	0xe0000000
 #define IO_SPACE_LIMIT	0xffffffff
 
-#define __io(a)		((void __iomem *)(PCIO_BASE + (a)))
+#define __io(a)		__typesafe_io(PCIO_BASE + (a))
 #define __mem_pci(addr)	(addr)
 
 #endif
diff --git a/arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h b/arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h
new file mode 100644
index 000000000000..25d4058bcfed
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/regs-s3c2412-iis.h
@@ -0,0 +1,72 @@
+/* linux/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h
+ *
+ * Copyright 2007 Simtec Electronics <linux@simtec.co.uk>
+ *	http://armlinux.simtec.co.uk/
+ *
+ * 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.
+ *
+ * S3C2412 IIS register definition
+*/
+
+#ifndef __ASM_ARCH_REGS_S3C2412_IIS_H
+#define __ASM_ARCH_REGS_S3C2412_IIS_H
+
+#define S3C2412_IISCON			(0x00)
+#define S3C2412_IISMOD			(0x04)
+#define S3C2412_IISFIC			(0x08)
+#define S3C2412_IISPSR			(0x0C)
+#define S3C2412_IISTXD			(0x10)
+#define S3C2412_IISRXD			(0x14)
+
+#define S3C2412_IISCON_LRINDEX		(1 << 11)
+#define S3C2412_IISCON_TXFIFO_EMPTY	(1 << 10)
+#define S3C2412_IISCON_RXFIFO_EMPTY	(1 << 9)
+#define S3C2412_IISCON_TXFIFO_FULL	(1 << 8)
+#define S3C2412_IISCON_RXFIFO_FULL	(1 << 7)
+#define S3C2412_IISCON_TXDMA_PAUSE	(1 << 6)
+#define S3C2412_IISCON_RXDMA_PAUSE	(1 << 5)
+#define S3C2412_IISCON_TXCH_PAUSE	(1 << 4)
+#define S3C2412_IISCON_RXCH_PAUSE	(1 << 3)
+#define S3C2412_IISCON_TXDMA_ACTIVE	(1 << 2)
+#define S3C2412_IISCON_RXDMA_ACTIVE	(1 << 1)
+#define S3C2412_IISCON_IIS_ACTIVE	(1 << 0)
+
+#define S3C2412_IISMOD_MASTER_INTERNAL	(0 << 10)
+#define S3C2412_IISMOD_MASTER_EXTERNAL	(1 << 10)
+#define S3C2412_IISMOD_SLAVE		(2 << 10)
+#define S3C2412_IISMOD_MASTER_MASK	(3 << 10)
+#define S3C2412_IISMOD_MODE_TXONLY	(0 << 8)
+#define S3C2412_IISMOD_MODE_RXONLY	(1 << 8)
+#define S3C2412_IISMOD_MODE_TXRX	(2 << 8)
+#define S3C2412_IISMOD_MODE_MASK	(3 << 8)
+#define S3C2412_IISMOD_LR_LLOW		(0 << 7)
+#define S3C2412_IISMOD_LR_RLOW		(1 << 7)
+#define S3C2412_IISMOD_SDF_IIS		(0 << 5)
+#define S3C2412_IISMOD_SDF_MSB		(0 << 5)
+#define S3C2412_IISMOD_SDF_LSB		(0 << 5)
+#define S3C2412_IISMOD_SDF_MASK		(3 << 5)
+#define S3C2412_IISMOD_RCLK_256FS	(0 << 3)
+#define S3C2412_IISMOD_RCLK_512FS	(1 << 3)
+#define S3C2412_IISMOD_RCLK_384FS	(2 << 3)
+#define S3C2412_IISMOD_RCLK_768FS	(3 << 3)
+#define S3C2412_IISMOD_RCLK_MASK 	(3 << 3)
+#define S3C2412_IISMOD_BCLK_32FS	(0 << 1)
+#define S3C2412_IISMOD_BCLK_48FS	(1 << 1)
+#define S3C2412_IISMOD_BCLK_16FS	(2 << 1)
+#define S3C2412_IISMOD_BCLK_24FS	(3 << 1)
+#define S3C2412_IISMOD_BCLK_MASK	(3 << 1)
+#define S3C2412_IISMOD_8BIT		(1 << 0)
+
+#define S3C2412_IISPSR_PSREN		(1 << 15)
+
+#define S3C2412_IISFIC_TXFLUSH		(1 << 15)
+#define S3C2412_IISFIC_RXFLUSH		(1 << 7)
+#define S3C2412_IISFIC_TXCOUNT(x)	(((x) >>  8) & 0xf)
+#define S3C2412_IISFIC_RXCOUNT(x)	(((x) >>  0) & 0xf)
+
+
+
+#endif /* __ASM_ARCH_REGS_S3C2412_IIS_H */
+
diff --git a/arch/arm/plat-s3c24xx/clock-dclk.c b/arch/arm/plat-s3c24xx/clock-dclk.c
index 5b75a797b5ab..35219dcf9f08 100644
--- a/arch/arm/plat-s3c24xx/clock-dclk.c
+++ b/arch/arm/plat-s3c24xx/clock-dclk.c
@@ -18,6 +18,7 @@
 
 #include <mach/regs-clock.h>
 #include <mach/regs-gpio.h>
+#include <mach/hardware.h>
 
 #include <plat/clock.h>
 #include <plat/cpu.h>
diff --git a/arch/arm/plat-s3c24xx/include/plat/regs-iis.h b/arch/arm/plat-s3c24xx/include/plat/regs-iis.h
new file mode 100644
index 000000000000..a6f1d5df13b4
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/include/plat/regs-iis.h
@@ -0,0 +1,77 @@
+/* arch/arm/mach-s3c2410/include/mach/regs-iis.h
+ *
+ * Copyright (c) 2003 Simtec Electronics <linux@simtec.co.uk>
+ *		      http://www.simtec.co.uk/products/SWLINUX/
+ *
+ * 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.
+ *
+ * S3C2410 IIS register definition
+*/
+
+#ifndef __ASM_ARCH_REGS_IIS_H
+#define __ASM_ARCH_REGS_IIS_H
+
+#define S3C2410_IISCON	 (0x00)
+
+#define S3C2410_IISCON_LRINDEX	  (1<<8)
+#define S3C2410_IISCON_TXFIFORDY  (1<<7)
+#define S3C2410_IISCON_RXFIFORDY  (1<<6)
+#define S3C2410_IISCON_TXDMAEN	  (1<<5)
+#define S3C2410_IISCON_RXDMAEN	  (1<<4)
+#define S3C2410_IISCON_TXIDLE	  (1<<3)
+#define S3C2410_IISCON_RXIDLE	  (1<<2)
+#define S3C2410_IISCON_PSCEN	  (1<<1)
+#define S3C2410_IISCON_IISEN	  (1<<0)
+
+#define S3C2410_IISMOD	 (0x04)
+
+#define S3C2440_IISMOD_MPLL	  (1<<9)
+#define S3C2410_IISMOD_SLAVE	  (1<<8)
+#define S3C2410_IISMOD_NOXFER	  (0<<6)
+#define S3C2410_IISMOD_RXMODE	  (1<<6)
+#define S3C2410_IISMOD_TXMODE	  (2<<6)
+#define S3C2410_IISMOD_TXRXMODE	  (3<<6)
+#define S3C2410_IISMOD_LR_LLOW	  (0<<5)
+#define S3C2410_IISMOD_LR_RLOW	  (1<<5)
+#define S3C2410_IISMOD_IIS	  (0<<4)
+#define S3C2410_IISMOD_MSB	  (1<<4)
+#define S3C2410_IISMOD_8BIT	  (0<<3)
+#define S3C2410_IISMOD_16BIT	  (1<<3)
+#define S3C2410_IISMOD_BITMASK	  (1<<3)
+#define S3C2410_IISMOD_256FS	  (0<<2)
+#define S3C2410_IISMOD_384FS	  (1<<2)
+#define S3C2410_IISMOD_16FS	  (0<<0)
+#define S3C2410_IISMOD_32FS	  (1<<0)
+#define S3C2410_IISMOD_48FS	  (2<<0)
+#define S3C2410_IISMOD_FS_MASK	  (3<<0)
+
+#define S3C2410_IISPSR		(0x08)
+#define S3C2410_IISPSR_INTMASK	(31<<5)
+#define S3C2410_IISPSR_INTSHIFT	(5)
+#define S3C2410_IISPSR_EXTMASK	(31<<0)
+#define S3C2410_IISPSR_EXTSHFIT	(0)
+
+#define S3C2410_IISFCON  (0x0c)
+
+#define S3C2410_IISFCON_TXDMA	  (1<<15)
+#define S3C2410_IISFCON_RXDMA	  (1<<14)
+#define S3C2410_IISFCON_TXENABLE  (1<<13)
+#define S3C2410_IISFCON_RXENABLE  (1<<12)
+#define S3C2410_IISFCON_TXMASK	  (0x3f << 6)
+#define S3C2410_IISFCON_TXSHIFT	  (6)
+#define S3C2410_IISFCON_RXMASK	  (0x3f)
+#define S3C2410_IISFCON_RXSHIFT	  (0)
+
+#define S3C2400_IISFCON_TXDMA     (1<<11)
+#define S3C2400_IISFCON_RXDMA     (1<<10)
+#define S3C2400_IISFCON_TXENABLE  (1<<9)
+#define S3C2400_IISFCON_RXENABLE  (1<<8)
+#define S3C2400_IISFCON_TXMASK	  (0x07 << 4)
+#define S3C2400_IISFCON_TXSHIFT	  (4)
+#define S3C2400_IISFCON_RXMASK	  (0x07)
+#define S3C2400_IISFCON_RXSHIFT	  (0)
+
+#define S3C2410_IISFIFO  (0x10)
+#endif /* __ASM_ARCH_REGS_IIS_H */
diff --git a/include/asm-arm/plat-s3c24xx/regs-iis.h b/include/asm-arm/plat-s3c24xx/regs-iis.h
deleted file mode 100644
index a6f1d5df13b4..000000000000
--- a/include/asm-arm/plat-s3c24xx/regs-iis.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/* arch/arm/mach-s3c2410/include/mach/regs-iis.h
- *
- * Copyright (c) 2003 Simtec Electronics <linux@simtec.co.uk>
- *		      http://www.simtec.co.uk/products/SWLINUX/
- *
- * 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.
- *
- * S3C2410 IIS register definition
-*/
-
-#ifndef __ASM_ARCH_REGS_IIS_H
-#define __ASM_ARCH_REGS_IIS_H
-
-#define S3C2410_IISCON	 (0x00)
-
-#define S3C2410_IISCON_LRINDEX	  (1<<8)
-#define S3C2410_IISCON_TXFIFORDY  (1<<7)
-#define S3C2410_IISCON_RXFIFORDY  (1<<6)
-#define S3C2410_IISCON_TXDMAEN	  (1<<5)
-#define S3C2410_IISCON_RXDMAEN	  (1<<4)
-#define S3C2410_IISCON_TXIDLE	  (1<<3)
-#define S3C2410_IISCON_RXIDLE	  (1<<2)
-#define S3C2410_IISCON_PSCEN	  (1<<1)
-#define S3C2410_IISCON_IISEN	  (1<<0)
-
-#define S3C2410_IISMOD	 (0x04)
-
-#define S3C2440_IISMOD_MPLL	  (1<<9)
-#define S3C2410_IISMOD_SLAVE	  (1<<8)
-#define S3C2410_IISMOD_NOXFER	  (0<<6)
-#define S3C2410_IISMOD_RXMODE	  (1<<6)
-#define S3C2410_IISMOD_TXMODE	  (2<<6)
-#define S3C2410_IISMOD_TXRXMODE	  (3<<6)
-#define S3C2410_IISMOD_LR_LLOW	  (0<<5)
-#define S3C2410_IISMOD_LR_RLOW	  (1<<5)
-#define S3C2410_IISMOD_IIS	  (0<<4)
-#define S3C2410_IISMOD_MSB	  (1<<4)
-#define S3C2410_IISMOD_8BIT	  (0<<3)
-#define S3C2410_IISMOD_16BIT	  (1<<3)
-#define S3C2410_IISMOD_BITMASK	  (1<<3)
-#define S3C2410_IISMOD_256FS	  (0<<2)
-#define S3C2410_IISMOD_384FS	  (1<<2)
-#define S3C2410_IISMOD_16FS	  (0<<0)
-#define S3C2410_IISMOD_32FS	  (1<<0)
-#define S3C2410_IISMOD_48FS	  (2<<0)
-#define S3C2410_IISMOD_FS_MASK	  (3<<0)
-
-#define S3C2410_IISPSR		(0x08)
-#define S3C2410_IISPSR_INTMASK	(31<<5)
-#define S3C2410_IISPSR_INTSHIFT	(5)
-#define S3C2410_IISPSR_EXTMASK	(31<<0)
-#define S3C2410_IISPSR_EXTSHFIT	(0)
-
-#define S3C2410_IISFCON  (0x0c)
-
-#define S3C2410_IISFCON_TXDMA	  (1<<15)
-#define S3C2410_IISFCON_RXDMA	  (1<<14)
-#define S3C2410_IISFCON_TXENABLE  (1<<13)
-#define S3C2410_IISFCON_RXENABLE  (1<<12)
-#define S3C2410_IISFCON_TXMASK	  (0x3f << 6)
-#define S3C2410_IISFCON_TXSHIFT	  (6)
-#define S3C2410_IISFCON_RXMASK	  (0x3f)
-#define S3C2410_IISFCON_RXSHIFT	  (0)
-
-#define S3C2400_IISFCON_TXDMA     (1<<11)
-#define S3C2400_IISFCON_RXDMA     (1<<10)
-#define S3C2400_IISFCON_TXENABLE  (1<<9)
-#define S3C2400_IISFCON_RXENABLE  (1<<8)
-#define S3C2400_IISFCON_TXMASK	  (0x07 << 4)
-#define S3C2400_IISFCON_TXSHIFT	  (4)
-#define S3C2400_IISFCON_RXMASK	  (0x07)
-#define S3C2400_IISFCON_RXSHIFT	  (0)
-
-#define S3C2410_IISFIFO  (0x10)
-#endif /* __ASM_ARCH_REGS_IIS_H */
diff --git a/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h b/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h
deleted file mode 100644
index 25d4058bcfed..000000000000
--- a/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/* linux/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h
- *
- * Copyright 2007 Simtec Electronics <linux@simtec.co.uk>
- *	http://armlinux.simtec.co.uk/
- *
- * 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.
- *
- * S3C2412 IIS register definition
-*/
-
-#ifndef __ASM_ARCH_REGS_S3C2412_IIS_H
-#define __ASM_ARCH_REGS_S3C2412_IIS_H
-
-#define S3C2412_IISCON			(0x00)
-#define S3C2412_IISMOD			(0x04)
-#define S3C2412_IISFIC			(0x08)
-#define S3C2412_IISPSR			(0x0C)
-#define S3C2412_IISTXD			(0x10)
-#define S3C2412_IISRXD			(0x14)
-
-#define S3C2412_IISCON_LRINDEX		(1 << 11)
-#define S3C2412_IISCON_TXFIFO_EMPTY	(1 << 10)
-#define S3C2412_IISCON_RXFIFO_EMPTY	(1 << 9)
-#define S3C2412_IISCON_TXFIFO_FULL	(1 << 8)
-#define S3C2412_IISCON_RXFIFO_FULL	(1 << 7)
-#define S3C2412_IISCON_TXDMA_PAUSE	(1 << 6)
-#define S3C2412_IISCON_RXDMA_PAUSE	(1 << 5)
-#define S3C2412_IISCON_TXCH_PAUSE	(1 << 4)
-#define S3C2412_IISCON_RXCH_PAUSE	(1 << 3)
-#define S3C2412_IISCON_TXDMA_ACTIVE	(1 << 2)
-#define S3C2412_IISCON_RXDMA_ACTIVE	(1 << 1)
-#define S3C2412_IISCON_IIS_ACTIVE	(1 << 0)
-
-#define S3C2412_IISMOD_MASTER_INTERNAL	(0 << 10)
-#define S3C2412_IISMOD_MASTER_EXTERNAL	(1 << 10)
-#define S3C2412_IISMOD_SLAVE		(2 << 10)
-#define S3C2412_IISMOD_MASTER_MASK	(3 << 10)
-#define S3C2412_IISMOD_MODE_TXONLY	(0 << 8)
-#define S3C2412_IISMOD_MODE_RXONLY	(1 << 8)
-#define S3C2412_IISMOD_MODE_TXRX	(2 << 8)
-#define S3C2412_IISMOD_MODE_MASK	(3 << 8)
-#define S3C2412_IISMOD_LR_LLOW		(0 << 7)
-#define S3C2412_IISMOD_LR_RLOW		(1 << 7)
-#define S3C2412_IISMOD_SDF_IIS		(0 << 5)
-#define S3C2412_IISMOD_SDF_MSB		(0 << 5)
-#define S3C2412_IISMOD_SDF_LSB		(0 << 5)
-#define S3C2412_IISMOD_SDF_MASK		(3 << 5)
-#define S3C2412_IISMOD_RCLK_256FS	(0 << 3)
-#define S3C2412_IISMOD_RCLK_512FS	(1 << 3)
-#define S3C2412_IISMOD_RCLK_384FS	(2 << 3)
-#define S3C2412_IISMOD_RCLK_768FS	(3 << 3)
-#define S3C2412_IISMOD_RCLK_MASK 	(3 << 3)
-#define S3C2412_IISMOD_BCLK_32FS	(0 << 1)
-#define S3C2412_IISMOD_BCLK_48FS	(1 << 1)
-#define S3C2412_IISMOD_BCLK_16FS	(2 << 1)
-#define S3C2412_IISMOD_BCLK_24FS	(3 << 1)
-#define S3C2412_IISMOD_BCLK_MASK	(3 << 1)
-#define S3C2412_IISMOD_8BIT		(1 << 0)
-
-#define S3C2412_IISPSR_PSREN		(1 << 15)
-
-#define S3C2412_IISFIC_TXFLUSH		(1 << 15)
-#define S3C2412_IISFIC_RXFLUSH		(1 << 7)
-#define S3C2412_IISFIC_TXCOUNT(x)	(((x) >>  8) & 0xf)
-#define S3C2412_IISFIC_RXCOUNT(x)	(((x) >>  0) & 0xf)
-
-
-
-#endif /* __ASM_ARCH_REGS_S3C2412_IIS_H */
-
diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c
index 45bb12e8ea44..286ff4497fd8 100644
--- a/sound/soc/s3c24xx/neo1973_wm8753.c
+++ b/sound/soc/s3c24xx/neo1973_wm8753.c
@@ -33,7 +33,7 @@
 #include <linux/io.h>
 #include <mach/spi-gpio.h>
 
-#include <asm/plat-s3c24xx/regs-iis.h>
+#include <plat/regs-iis.h>
 
 #include "../codecs/wm8753.h"
 #include "lm4857.h"
diff --git a/sound/soc/s3c24xx/s3c2412-i2s.c b/sound/soc/s3c24xx/s3c2412-i2s.c
index f3fc0aba0aaf..36b927d3f54a 100644
--- a/sound/soc/s3c24xx/s3c2412-i2s.c
+++ b/sound/soc/s3c24xx/s3c2412-i2s.c
@@ -22,6 +22,7 @@
 #include <linux/delay.h>
 #include <linux/clk.h>
 #include <linux/kernel.h>
+#include <linux/io.h>
 
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -30,10 +31,7 @@
 #include <sound/soc.h>
 #include <mach/hardware.h>
 
-#include <linux/io.h>
-#include <asm/dma.h>
-
-#include <asm/plat-s3c24xx/regs-s3c2412-iis.h>
+#include <plat/regs-s3c2412-iis.h>
 
 #include <mach/regs-gpio.h>
 #include <mach/audio.h>
diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.c b/sound/soc/s3c24xx/s3c24xx-i2s.c
index 6f4d439b57aa..2569b910b9b2 100644
--- a/sound/soc/s3c24xx/s3c24xx-i2s.c
+++ b/sound/soc/s3c24xx/s3c24xx-i2s.c
@@ -34,7 +34,7 @@
 #include <asm/dma.h>
 #include <mach/dma.h>
 
-#include <asm/plat-s3c24xx/regs-iis.h>
+#include <plat/regs-iis.h>
 
 #include "s3c24xx-pcm.h"
 #include "s3c24xx-i2s.h"
diff --git a/sound/soc/s3c24xx/s3c24xx_uda134x.c b/sound/soc/s3c24xx/s3c24xx_uda134x.c
index a0a4d1832a14..8e79a416db57 100644
--- a/sound/soc/s3c24xx/s3c24xx_uda134x.c
+++ b/sound/soc/s3c24xx/s3c24xx_uda134x.c
@@ -22,7 +22,7 @@
 #include <sound/s3c24xx_uda134x.h>
 #include <sound/uda134x.h>
 
-#include <asm/plat-s3c24xx/regs-iis.h>
+#include <plat/regs-iis.h>
 
 #include "s3c24xx-pcm.h"
 #include "s3c24xx-i2s.h"
-- 
cgit v1.2.3


From f2f45e5f3c921c73c913e9a9c00f21ec01c86b4d Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 9 Jan 2009 12:19:52 +0100
Subject: dma-debug: add header file and core data structures

Impact: add groundwork for DMA-API debugging

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h | 25 +++++++++++++++++++++++++
 lib/Makefile              |  2 ++
 lib/dma-debug.c           | 42 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 69 insertions(+)
 create mode 100644 include/linux/dma-debug.h
 create mode 100644 lib/dma-debug.c

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
new file mode 100644
index 000000000000..ce4ace707c7b
--- /dev/null
+++ b/include/linux/dma-debug.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * Author: Joerg Roedel <joerg.roedel@amd.com>
+ *
+ * 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
+ */
+
+#ifndef __DMA_DEBUG_H
+#define __DMA_DEBUG_H
+
+struct device;
+
+#endif /* __DMA_DEBUG_H */
diff --git a/lib/Makefile b/lib/Makefile
index 32b0e64ded27..50b48cf63e4a 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -84,6 +84,8 @@ obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
 
 obj-$(CONFIG_DYNAMIC_PRINTK_DEBUG) += dynamic_printk.o
 
+obj-$(CONFIG_DMA_API_DEBUG) += dma-debug.o
+
 hostprogs-y	:= gen_crc32table
 clean-files	:= crc32table.h
 
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
new file mode 100644
index 000000000000..31099712328c
--- /dev/null
+++ b/lib/dma-debug.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * Author: Joerg Roedel <joerg.roedel@amd.com>
+ *
+ * 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
+ */
+
+#include <linux/dma-debug.h>
+#include <linux/types.h>
+#include <linux/list.h>
+
+enum {
+	dma_debug_single,
+	dma_debug_page,
+	dma_debug_sg,
+	dma_debug_coherent,
+};
+
+struct dma_debug_entry {
+	struct list_head list;
+	struct device    *dev;
+	int              type;
+	phys_addr_t      paddr;
+	u64              dev_addr;
+	u64              size;
+	int              direction;
+	int		 sg_call_ents;
+	int		 sg_mapped_ents;
+};
+
-- 
cgit v1.2.3


From 6bf078715c1998d4d10716251cc10ce45908594c Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 9 Jan 2009 12:54:42 +0100
Subject: dma-debug: add initialization code

Impact: add code to initialize dma-debug core data structures

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h | 14 ++++++++++
 lib/dma-debug.c           | 66 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index ce4ace707c7b..345d5387a30d 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -20,6 +20,20 @@
 #ifndef __DMA_DEBUG_H
 #define __DMA_DEBUG_H
 
+#include <linux/types.h>
+
 struct device;
 
+#ifdef CONFIG_DMA_API_DEBUG
+
+extern void dma_debug_init(u32 num_entries);
+
+#else /* CONFIG_DMA_API_DEBUG */
+
+static inline void dma_debug_init(u32 num_entries)
+{
+}
+
+#endif /* CONFIG_DMA_API_DEBUG */
+
 #endif /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index b60914669656..5b50bb31f7c6 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -21,6 +21,7 @@
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <linux/list.h>
+#include <linux/slab.h>
 
 #define HASH_SIZE       1024ULL
 #define HASH_FN_SHIFT   13
@@ -198,3 +199,68 @@ static void dma_entry_free(struct dma_debug_entry *entry)
 	spin_unlock_irqrestore(&free_entries_lock, flags);
 }
 
+/*
+ * DMA-API debugging init code
+ *
+ * The init code does two things:
+ *   1. Initialize core data structures
+ *   2. Preallocate a given number of dma_debug_entry structs
+ */
+
+static int prealloc_memory(u32 num_entries)
+{
+	struct dma_debug_entry *entry, *next_entry;
+	int i;
+
+	for (i = 0; i < num_entries; ++i) {
+		entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+		if (!entry)
+			goto out_err;
+
+		list_add_tail(&entry->list, &free_entries);
+	}
+
+	num_free_entries = num_entries;
+	min_free_entries = num_entries;
+
+	printk(KERN_INFO "DMA-API: preallocated %d debug entries\n",
+			num_entries);
+
+	return 0;
+
+out_err:
+
+	list_for_each_entry_safe(entry, next_entry, &free_entries, list) {
+		list_del(&entry->list);
+		kfree(entry);
+	}
+
+	return -ENOMEM;
+}
+
+/*
+ * Let the architectures decide how many entries should be preallocated.
+ */
+void dma_debug_init(u32 num_entries)
+{
+	int i;
+
+	if (global_disable)
+		return;
+
+	for (i = 0; i < HASH_SIZE; ++i) {
+		INIT_LIST_HEAD(&dma_entry_hash[i].list);
+		dma_entry_hash[i].lock = SPIN_LOCK_UNLOCKED;
+	}
+
+	if (prealloc_memory(num_entries) != 0) {
+		printk(KERN_ERR "DMA-API: debugging out of memory error "
+				"- disabled\n");
+		global_disable = true;
+
+		return;
+	}
+
+	printk(KERN_INFO "DMA-API: debugging enabled by kernel config\n");
+}
+
-- 
cgit v1.2.3


From f62bc980e6fd26434012c0d5676ecb17179d9ee4 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 9 Jan 2009 14:14:49 +0100
Subject: dma-debug: add checking for map/unmap_page/single

Impact: add debug callbacks for dma_{un}map_[page|single]

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h | 23 ++++++++++++++++++++
 lib/dma-debug.c           | 53 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index 345d5387a30d..65f73526ba2c 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -28,12 +28,35 @@ struct device;
 
 extern void dma_debug_init(u32 num_entries);
 
+extern void debug_dma_map_page(struct device *dev, struct page *page,
+			       size_t offset, size_t size,
+			       int direction, dma_addr_t dma_addr,
+			       bool map_single);
+
+extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
+				 size_t size, int direction, bool map_single);
+
+
 #else /* CONFIG_DMA_API_DEBUG */
 
 static inline void dma_debug_init(u32 num_entries)
 {
 }
 
+static inline void debug_dma_map_page(struct device *dev, struct page *page,
+				      size_t offset, size_t size,
+				      int direction, dma_addr_t dma_addr,
+				      bool map_single)
+{
+}
+
+static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
+					size_t size, int direction,
+					bool map_single)
+{
+}
+
+
 #endif /* CONFIG_DMA_API_DEBUG */
 
 #endif /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index d0cb47a4211e..a2ed2b769685 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -566,3 +566,56 @@ out:
 
 }
 
+void debug_dma_map_page(struct device *dev, struct page *page, size_t offset,
+			size_t size, int direction, dma_addr_t dma_addr,
+			bool map_single)
+{
+	struct dma_debug_entry *entry;
+
+	if (unlikely(global_disable))
+		return;
+
+	if (unlikely(dma_mapping_error(dev, dma_addr)))
+		return;
+
+	entry = dma_entry_alloc();
+	if (!entry)
+		return;
+
+	entry->dev       = dev;
+	entry->type      = dma_debug_page;
+	entry->paddr     = page_to_phys(page) + offset;
+	entry->dev_addr  = dma_addr;
+	entry->size      = size;
+	entry->direction = direction;
+
+	if (map_single) {
+		entry->type = dma_debug_single;
+		check_for_stack(dev, page_address(page) + offset);
+	}
+
+	add_dma_entry(entry);
+}
+EXPORT_SYMBOL(debug_dma_map_page);
+
+void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
+			  size_t size, int direction, bool map_single)
+{
+	struct dma_debug_entry ref = {
+		.type           = dma_debug_page,
+		.dev            = dev,
+		.dev_addr       = addr,
+		.size           = size,
+		.direction      = direction,
+	};
+
+	if (unlikely(global_disable))
+		return;
+
+	if (map_single)
+		ref.type = dma_debug_single;
+
+	check_unmap(&ref);
+}
+EXPORT_SYMBOL(debug_dma_unmap_page);
+
-- 
cgit v1.2.3


From 972aa45ceaf65376f33aa75958fcaefc9e752fa4 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 9 Jan 2009 14:19:54 +0100
Subject: dma-debug: add add checking for map/unmap_sg

Impact: add debug callbacks for dma_{un}map_sg

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h | 16 +++++++++++
 lib/dma-debug.c           | 73 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index 65f73526ba2c..ee9fdb328549 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -23,6 +23,7 @@
 #include <linux/types.h>
 
 struct device;
+struct scatterlist;
 
 #ifdef CONFIG_DMA_API_DEBUG
 
@@ -36,6 +37,11 @@ extern void debug_dma_map_page(struct device *dev, struct page *page,
 extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
 				 size_t size, int direction, bool map_single);
 
+extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
+			     int nents, int mapped_ents, int direction);
+
+extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
+			       int nelems, int dir);
 
 #else /* CONFIG_DMA_API_DEBUG */
 
@@ -56,6 +62,16 @@ static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
 {
 }
 
+static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
+				    int nents, int mapped_ents, int direction)
+{
+}
+
+static inline void debug_dma_unmap_sg(struct device *dev,
+				      struct scatterlist *sglist,
+				      int nelems, int dir)
+{
+}
 
 #endif /* CONFIG_DMA_API_DEBUG */
 
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index a2ed2b769685..26e40e93e0f2 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -17,6 +17,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
 #include <linux/dma-debug.h>
 #include <linux/spinlock.h>
@@ -619,3 +620,75 @@ void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
 }
 EXPORT_SYMBOL(debug_dma_unmap_page);
 
+void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
+		      int nents, int mapped_ents, int direction)
+{
+	struct dma_debug_entry *entry;
+	struct scatterlist *s;
+	int i;
+
+	if (unlikely(global_disable))
+		return;
+
+	for_each_sg(sg, s, mapped_ents, i) {
+		entry = dma_entry_alloc();
+		if (!entry)
+			return;
+
+		entry->type           = dma_debug_sg;
+		entry->dev            = dev;
+		entry->paddr          = sg_phys(s);
+		entry->size           = s->length;
+		entry->dev_addr       = s->dma_address;
+		entry->direction      = direction;
+		entry->sg_call_ents   = nents;
+		entry->sg_mapped_ents = mapped_ents;
+
+		check_for_stack(dev, sg_virt(s));
+
+		add_dma_entry(entry);
+	}
+}
+EXPORT_SYMBOL(debug_dma_map_sg);
+
+void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
+			int nelems, int dir)
+{
+	struct dma_debug_entry *entry;
+	struct scatterlist *s;
+	int mapped_ents = 0, i;
+	unsigned long flags;
+
+	if (unlikely(global_disable))
+		return;
+
+	for_each_sg(sglist, s, nelems, i) {
+
+		struct dma_debug_entry ref = {
+			.type           = dma_debug_sg,
+			.dev            = dev,
+			.paddr          = sg_phys(s),
+			.dev_addr       = s->dma_address,
+			.size           = s->length,
+			.direction      = dir,
+			.sg_call_ents   = 0,
+		};
+
+		if (mapped_ents && i >= mapped_ents)
+			break;
+
+		if (mapped_ents == 0) {
+			struct hash_bucket *bucket;
+			ref.sg_call_ents = nelems;
+			bucket = get_hash_bucket(&ref, &flags);
+			entry = hash_bucket_find(bucket, &ref);
+			if (entry)
+				mapped_ents = entry->sg_mapped_ents;
+			put_hash_bucket(bucket, &flags);
+		}
+
+		check_unmap(&ref);
+	}
+}
+EXPORT_SYMBOL(debug_dma_unmap_sg);
+
-- 
cgit v1.2.3


From 6bfd4498764d6201399849d2e80fda95db7742c0 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 9 Jan 2009 14:38:50 +0100
Subject: dma-debug: add checking for [alloc|free]_coherent

Impact: add debug callbacks for dma_[alloc|free]_coherent

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h | 16 ++++++++++++++++
 lib/dma-debug.c           | 45 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index ee9fdb328549..cb72dfd87326 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -43,6 +43,12 @@ extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
 extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 			       int nelems, int dir);
 
+extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
+				     dma_addr_t dma_addr, void *virt);
+
+extern void debug_dma_free_coherent(struct device *dev, size_t size,
+				    void *virt, dma_addr_t addr);
+
 #else /* CONFIG_DMA_API_DEBUG */
 
 static inline void dma_debug_init(u32 num_entries)
@@ -73,6 +79,16 @@ static inline void debug_dma_unmap_sg(struct device *dev,
 {
 }
 
+static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
+					    dma_addr_t dma_addr, void *virt)
+{
+}
+
+static inline void debug_dma_free_coherent(struct device *dev, size_t size,
+					   void *virt, dma_addr_t addr)
+{
+}
+
 #endif /* CONFIG_DMA_API_DEBUG */
 
 #endif /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 26e40e93e0f2..44af837f68ef 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -692,3 +692,48 @@ void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 }
 EXPORT_SYMBOL(debug_dma_unmap_sg);
 
+void debug_dma_alloc_coherent(struct device *dev, size_t size,
+			      dma_addr_t dma_addr, void *virt)
+{
+	struct dma_debug_entry *entry;
+
+	if (unlikely(global_disable))
+		return;
+
+	if (unlikely(virt == NULL))
+		return;
+
+	entry = dma_entry_alloc();
+	if (!entry)
+		return;
+
+	entry->type      = dma_debug_coherent;
+	entry->dev       = dev;
+	entry->paddr     = virt_to_phys(virt);
+	entry->size      = size;
+	entry->dev_addr  = dma_addr;
+	entry->direction = DMA_BIDIRECTIONAL;
+
+	add_dma_entry(entry);
+}
+EXPORT_SYMBOL(debug_dma_alloc_coherent);
+
+void debug_dma_free_coherent(struct device *dev, size_t size,
+			 void *virt, dma_addr_t addr)
+{
+	struct dma_debug_entry ref = {
+		.type           = dma_debug_coherent,
+		.dev            = dev,
+		.paddr          = virt_to_phys(virt),
+		.dev_addr       = addr,
+		.size           = size,
+		.direction      = DMA_BIDIRECTIONAL,
+	};
+
+	if (unlikely(global_disable))
+		return;
+
+	check_unmap(&ref);
+}
+EXPORT_SYMBOL(debug_dma_free_coherent);
+
-- 
cgit v1.2.3


From b9d2317e0c4aed02afd20022083b2a485289605d Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 9 Jan 2009 14:43:04 +0100
Subject: dma-debug: add checks for sync_single_*

Impact: add debug callbacks for dma_sync_single_for_* functions

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h | 20 ++++++++++++++++++++
 lib/dma-debug.c           | 21 +++++++++++++++++++++
 2 files changed, 41 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index cb72dfd87326..0eee7af5143f 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -49,6 +49,14 @@ extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
 extern void debug_dma_free_coherent(struct device *dev, size_t size,
 				    void *virt, dma_addr_t addr);
 
+extern void debug_dma_sync_single_for_cpu(struct device *dev,
+					  dma_addr_t dma_handle, size_t size,
+					  int direction);
+
+extern void debug_dma_sync_single_for_device(struct device *dev,
+					     dma_addr_t dma_handle,
+					     size_t size, int direction);
+
 #else /* CONFIG_DMA_API_DEBUG */
 
 static inline void dma_debug_init(u32 num_entries)
@@ -89,6 +97,18 @@ static inline void debug_dma_free_coherent(struct device *dev, size_t size,
 {
 }
 
+static inline void debug_dma_sync_single_for_cpu(struct device *dev,
+						 dma_addr_t dma_handle,
+						 size_t size, int direction)
+{
+}
+
+static inline void debug_dma_sync_single_for_device(struct device *dev,
+						    dma_addr_t dma_handle,
+						    size_t size, int direction)
+{
+}
+
 #endif /* CONFIG_DMA_API_DEBUG */
 
 #endif /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 44af837f68ef..714cfb6ca0e4 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -737,3 +737,24 @@ void debug_dma_free_coherent(struct device *dev, size_t size,
 }
 EXPORT_SYMBOL(debug_dma_free_coherent);
 
+void debug_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+				   size_t size, int direction)
+{
+	if (unlikely(global_disable))
+		return;
+
+	check_sync(dev, dma_handle, size, 0, direction, true);
+}
+EXPORT_SYMBOL(debug_dma_sync_single_for_cpu);
+
+void debug_dma_sync_single_for_device(struct device *dev,
+				      dma_addr_t dma_handle, size_t size,
+				      int direction)
+{
+	if (unlikely(global_disable))
+		return;
+
+	check_sync(dev, dma_handle, size, 0, direction, false);
+}
+EXPORT_SYMBOL(debug_dma_sync_single_for_device);
+
-- 
cgit v1.2.3


From 948408ba3e2a67ed0f95e18ed5be1c622c2c5fc3 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 9 Jan 2009 14:55:38 +0100
Subject: dma-debug: add checks for sync_single_range_*

Impact: add debug callbacks for dma_sync_single_range_for_* functions

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h | 27 +++++++++++++++++++++++++++
 lib/dma-debug.c           | 24 ++++++++++++++++++++++++
 2 files changed, 51 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index 0eee7af5143f..e9b903503adb 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -57,6 +57,17 @@ extern void debug_dma_sync_single_for_device(struct device *dev,
 					     dma_addr_t dma_handle,
 					     size_t size, int direction);
 
+extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
+						dma_addr_t dma_handle,
+						unsigned long offset,
+						size_t size,
+						int direction);
+
+extern void debug_dma_sync_single_range_for_device(struct device *dev,
+						   dma_addr_t dma_handle,
+						   unsigned long offset,
+						   size_t size, int direction);
+
 #else /* CONFIG_DMA_API_DEBUG */
 
 static inline void dma_debug_init(u32 num_entries)
@@ -109,6 +120,22 @@ static inline void debug_dma_sync_single_for_device(struct device *dev,
 {
 }
 
+static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
+						       dma_addr_t dma_handle,
+						       unsigned long offset,
+						       size_t size,
+						       int direction)
+{
+}
+
+static inline void debug_dma_sync_single_range_for_device(struct device *dev,
+							  dma_addr_t dma_handle,
+							  unsigned long offset,
+							  size_t size,
+							  int direction)
+{
+}
+
 #endif /* CONFIG_DMA_API_DEBUG */
 
 #endif /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 714cfb6ca0e4..d1c0ac1831b7 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -758,3 +758,27 @@ void debug_dma_sync_single_for_device(struct device *dev,
 }
 EXPORT_SYMBOL(debug_dma_sync_single_for_device);
 
+void debug_dma_sync_single_range_for_cpu(struct device *dev,
+					 dma_addr_t dma_handle,
+					 unsigned long offset, size_t size,
+					 int direction)
+{
+	if (unlikely(global_disable))
+		return;
+
+	check_sync(dev, dma_handle, size, offset, direction, true);
+}
+EXPORT_SYMBOL(debug_dma_sync_single_range_for_cpu);
+
+void debug_dma_sync_single_range_for_device(struct device *dev,
+					    dma_addr_t dma_handle,
+					    unsigned long offset,
+					    size_t size, int direction)
+{
+	if (unlikely(global_disable))
+		return;
+
+	check_sync(dev, dma_handle, size, offset, direction, false);
+}
+EXPORT_SYMBOL(debug_dma_sync_single_range_for_device);
+
-- 
cgit v1.2.3


From a31fba5d68cebf8f5fefd03e079dab94875e25f5 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 9 Jan 2009 15:01:12 +0100
Subject: dma-debug: add checks for sync_single_sg_*

Impact: add debug callbacks for dma_sync_sg_* functions

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h | 20 ++++++++++++++++++++
 lib/dma-debug.c           | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index e9b903503adb..4985c6c5237e 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -68,6 +68,14 @@ extern void debug_dma_sync_single_range_for_device(struct device *dev,
 						   unsigned long offset,
 						   size_t size, int direction);
 
+extern void debug_dma_sync_sg_for_cpu(struct device *dev,
+				      struct scatterlist *sg,
+				      int nelems, int direction);
+
+extern void debug_dma_sync_sg_for_device(struct device *dev,
+					 struct scatterlist *sg,
+					 int nelems, int direction);
+
 #else /* CONFIG_DMA_API_DEBUG */
 
 static inline void dma_debug_init(u32 num_entries)
@@ -136,6 +144,18 @@ static inline void debug_dma_sync_single_range_for_device(struct device *dev,
 {
 }
 
+static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
+					     struct scatterlist *sg,
+					     int nelems, int direction)
+{
+}
+
+static inline void debug_dma_sync_sg_for_device(struct device *dev,
+						struct scatterlist *sg,
+						int nelems, int direction)
+{
+}
+
 #endif /* CONFIG_DMA_API_DEBUG */
 
 #endif /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index d1c0ac1831b7..9d11e89c2ee2 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -782,3 +782,35 @@ void debug_dma_sync_single_range_for_device(struct device *dev,
 }
 EXPORT_SYMBOL(debug_dma_sync_single_range_for_device);
 
+void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+			       int nelems, int direction)
+{
+	struct scatterlist *s;
+	int i;
+
+	if (unlikely(global_disable))
+		return;
+
+	for_each_sg(sg, s, nelems, i) {
+		check_sync(dev, s->dma_address, s->dma_length, 0,
+				direction, true);
+	}
+}
+EXPORT_SYMBOL(debug_dma_sync_sg_for_cpu);
+
+void debug_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+				  int nelems, int direction)
+{
+	struct scatterlist *s;
+	int i;
+
+	if (unlikely(global_disable))
+		return;
+
+	for_each_sg(sg, s, nelems, i) {
+		check_sync(dev, s->dma_address, s->dma_length, 0,
+				direction, false);
+	}
+}
+EXPORT_SYMBOL(debug_dma_sync_sg_for_device);
+
-- 
cgit v1.2.3


From e79c1ba84c68de9161d541bd2bcc8ea65c89955c Mon Sep 17 00:00:00 2001
From: Michael Buesch <mb@bu3sch.de>
Date: Fri, 27 Feb 2009 16:59:05 +0100
Subject: ssb: Add SPROM fallback support

This adds SSB functionality to register a fallback SPROM image from the
architecture setup code.

Weird architectures exist that have half-assed SSB devices without SPROM attached to
their PCI busses. The architecture can register a fallback SPROM image that is
used if no SPROM is found on the SSB device.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Florian Fainelli <florian@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/ssb/pci.c         | 14 +++++++++++++-
 drivers/ssb/sprom.c       | 36 ++++++++++++++++++++++++++++++++++++
 drivers/ssb/ssb_private.h |  1 +
 include/linux/ssb/ssb.h   |  4 ++++
 4 files changed, 54 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index c958ac16423c..40ea41762247 100644
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -564,6 +564,7 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
 static int ssb_pci_sprom_get(struct ssb_bus *bus,
 			     struct ssb_sprom *sprom)
 {
+	const struct ssb_sprom *fallback;
 	int err = -ENOMEM;
 	u16 *buf;
 
@@ -583,12 +584,23 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
 		bus->sprom_size = SSB_SPROMSIZE_WORDS_R4;
 		sprom_do_read(bus, buf);
 		err = sprom_check_crc(buf, bus->sprom_size);
-		if (err)
+		if (err) {
+			/* All CRC attempts failed.
+			 * Maybe there is no SPROM on the device?
+			 * If we have a fallback, use that. */
+			fallback = ssb_get_fallback_sprom();
+			if (fallback) {
+				memcpy(sprom, fallback, sizeof(*sprom));
+				err = 0;
+				goto out_free;
+			}
 			ssb_printk(KERN_WARNING PFX "WARNING: Invalid"
 				   " SPROM CRC (corrupt SPROM)\n");
+		}
 	}
 	err = sprom_extract(bus, sprom, buf, bus->sprom_size);
 
+out_free:
 	kfree(buf);
 out:
 	return err;
diff --git a/drivers/ssb/sprom.c b/drivers/ssb/sprom.c
index 3668edb39315..8943015a3eef 100644
--- a/drivers/ssb/sprom.c
+++ b/drivers/ssb/sprom.c
@@ -14,6 +14,9 @@
 #include "ssb_private.h"
 
 
+static const struct ssb_sprom *fallback_sprom;
+
+
 static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len,
 		     size_t sprom_size_words)
 {
@@ -131,3 +134,36 @@ out:
 		return res;
 	return err ? err : count;
 }
+
+/**
+ * ssb_arch_set_fallback_sprom - Set a fallback SPROM for use if no SPROM is found.
+ *
+ * @sprom: The SPROM data structure to register.
+ *
+ * With this function the architecture implementation may register a fallback
+ * SPROM data structure. The fallback is only used for PCI based SSB devices,
+ * where no valid SPROM can be found in the shadow registers.
+ *
+ * This function is useful for weird architectures that have a half-assed SSB device
+ * hardwired to their PCI bus.
+ *
+ * Note that it does only work with PCI attached SSB devices. PCMCIA devices currently
+ * don't use this fallback.
+ * Architectures must provide the SPROM for native SSB devices anyway,
+ * so the fallback also isn't used for native devices.
+ *
+ * This function is available for architecture code, only. So it is not exported.
+ */
+int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom)
+{
+	if (fallback_sprom)
+		return -EEXIST;
+	fallback_sprom = sprom;
+
+	return 0;
+}
+
+const struct ssb_sprom *ssb_get_fallback_sprom(void)
+{
+	return fallback_sprom;
+}
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index ebc32d8fe15f..57fa482abb94 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -131,6 +131,7 @@ ssize_t ssb_attr_sprom_store(struct ssb_bus *bus,
 			     const char *buf, size_t count,
 			     int (*sprom_check_crc)(const u16 *sprom, size_t size),
 			     int (*sprom_write)(struct ssb_bus *bus, const u16 *sprom));
+extern const struct ssb_sprom *ssb_get_fallback_sprom(void);
 
 
 /* core.c */
diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index 17d9b58f6379..5ae8fa22d331 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -339,6 +339,10 @@ extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
 
 extern void ssb_bus_unregister(struct ssb_bus *bus);
 
+/* Set a fallback SPROM.
+ * See kdoc at the function definition for complete documentation. */
+extern int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom);
+
 /* Suspend a SSB bus.
  * Call this from the parent bus suspend routine. */
 extern int ssb_bus_suspend(struct ssb_bus *bus);
-- 
cgit v1.2.3


From 1f6ff364ceda516f88351a8ab640e656beed0b26 Mon Sep 17 00:00:00 2001
From: Abhijeet Joglekar <abjoglek@cisco.com>
Date: Fri, 27 Feb 2009 10:54:35 -0800
Subject: [SCSI] libfc: Pass lport in exch_mgr_reset

fc_exch_mgr structure is private to fc_exch.c. To export exch_mgr_reset to
transport, transport needs access to the exch manager. Change
exch_mgr_reset to use lport param which is the shared structure between
libFC and transport.

Alternatively, fc_exch_mgr definition can be moved to libfc.h so that lport
can be accessed from mp*.

Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/libfc/fc_exch.c  | 3 ++-
 drivers/scsi/libfc/fc_lport.c | 4 ++--
 drivers/scsi/libfc/fc_rport.c | 4 ++--
 include/scsi/libfc.h          | 4 ++--
 4 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 66db08a5f27f..a09416fd843c 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1480,10 +1480,11 @@ static void fc_exch_reset(struct fc_exch *ep)
  * If sid is non-zero, reset only exchanges we source from that FID.
  * If did is non-zero, reset only exchanges destined to that FID.
  */
-void fc_exch_mgr_reset(struct fc_exch_mgr *mp, u32 sid, u32 did)
+void fc_exch_mgr_reset(struct fc_lport *lp, u32 sid, u32 did)
 {
 	struct fc_exch *ep;
 	struct fc_exch *next;
+	struct fc_exch_mgr *mp = lp->emp;
 
 	spin_lock_bh(&mp->em_lock);
 restart:
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 0b9bdb1fb807..5db223ce3b25 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -663,7 +663,7 @@ int fc_lport_destroy(struct fc_lport *lport)
 {
 	lport->tt.frame_send = fc_frame_drop;
 	lport->tt.fcp_abort_io(lport);
-	lport->tt.exch_mgr_reset(lport->emp, 0, 0);
+	lport->tt.exch_mgr_reset(lport, 0, 0);
 	return 0;
 }
 EXPORT_SYMBOL(fc_lport_destroy);
@@ -973,7 +973,7 @@ static void fc_lport_enter_reset(struct fc_lport *lport)
 
 	lport->tt.disc_stop(lport);
 
-	lport->tt.exch_mgr_reset(lport->emp, 0, 0);
+	lport->tt.exch_mgr_reset(lport, 0, 0);
 	fc_host_fabric_name(lport->host) = 0;
 	fc_host_port_id(lport->host) = 0;
 
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index e780d8caf70e..dec7bae0e56d 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -1285,7 +1285,7 @@ void fc_rport_terminate_io(struct fc_rport *rport)
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
 	struct fc_lport *lport = rdata->local_port;
 
-	lport->tt.exch_mgr_reset(lport->emp, 0, rport->port_id);
-	lport->tt.exch_mgr_reset(lport->emp, rport->port_id, 0);
+	lport->tt.exch_mgr_reset(lport, 0, rport->port_id);
+	lport->tt.exch_mgr_reset(lport, rport->port_id, 0);
 }
 EXPORT_SYMBOL(fc_rport_terminate_io);
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 9f2876397dda..042f4ade73d7 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -472,7 +472,7 @@ struct libfc_function_template {
 	 * If s_id is non-zero, reset only exchanges originating from that FID.
 	 * If d_id is non-zero, reset only exchanges sending to that FID.
 	 */
-	void (*exch_mgr_reset)(struct fc_exch_mgr *,
+	void (*exch_mgr_reset)(struct fc_lport *,
 			       u32 s_id, u32 d_id);
 
 	void (*rport_flush_queue)(void);
@@ -916,7 +916,7 @@ struct fc_seq *fc_seq_start_next(struct fc_seq *sp);
  * If s_id is non-zero, reset only exchanges originating from that FID.
  * If d_id is non-zero, reset only exchanges sending to that FID.
  */
-void fc_exch_mgr_reset(struct fc_exch_mgr *, u32 s_id, u32 d_id);
+void fc_exch_mgr_reset(struct fc_lport *, u32 s_id, u32 d_id);
 
 /*
  * Functions for fc_functions_template
-- 
cgit v1.2.3


From bc0e17f691085315ae9303eb5b0883fe16dfe6b1 Mon Sep 17 00:00:00 2001
From: Vasu Dev <vasu.dev@intel.com>
Date: Fri, 27 Feb 2009 10:54:57 -0800
Subject: [SCSI] libfc, fcoe: fixed locking issues with lport->lp_mutex around
 lport->link_status

The fcoe_xmit could call fc_pause in case the pending skb queue len is larger
than FCOE_MAX_QUEUE_DEPTH, the fc_pause was trying to grab lport->lp_muex to
change lport->link_status and that had these issues :-

1. The fcoe_xmit was getting called with bh disabled, thus causing
"BUG: scheduling while atomic" when grabbing lport->lp_muex with bh disabled.

2. fc_linkup and fc_linkdown function calls lport_enter function with
lport->lp_mutex held and these enter function in turn calls fcoe_xmit to send
lport related FC frame, e.g. fc_linkup => fc_lport_enter_flogi to send flogi
req. In this case grabbing the same lport->lp_mutex again in fc_puase from
fcoe_xmit would cause deadlock.

The lport->lp_mutex was used for setting FC_PAUSE in fcoe_xmit path but
FC_PAUSE bit was not used anywhere beside just setting and clear this
bit in lport->link_status, instead used a separate field qfull in fc_lport
to eliminate need for lport->lp_mutex to track pending queue full condition
and in turn avoid above described two locking issues.

Also added check for lp->qfull in fc_fcp_lport_queue_ready to trigger
SCSI_MLQUEUE_HOST_BUSY when lp->qfull is set to prevent more scsi-ml cmds
while lp->qfull is set.

This patch eliminated FC_LINK_UP and FC_PAUSE and instead used dedicated
fields in fc_lport for this, this simplified all related conditional
code.

Also removed fc_pause and fc_unpause functions and instead used newly added
lport->qfull directly in fcoe.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/fcoe/fcoe_sw.c   |  6 +++---
 drivers/scsi/fcoe/libfcoe.c   | 41 +++++++++++++++++------------------------
 drivers/scsi/libfc/fc_fcp.c   |  4 ++--
 drivers/scsi/libfc/fc_lport.c | 36 ++++++------------------------------
 include/scsi/libfc.h          | 12 ++----------
 5 files changed, 30 insertions(+), 69 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c
index dc4cd5e25760..cf83675a0fb9 100644
--- a/drivers/scsi/fcoe/fcoe_sw.c
+++ b/drivers/scsi/fcoe/fcoe_sw.c
@@ -116,7 +116,8 @@ static int fcoe_sw_lport_config(struct fc_lport *lp)
 {
 	int i = 0;
 
-	lp->link_status = 0;
+	lp->link_up = 0;
+	lp->qfull = 0;
 	lp->max_retry_count = 3;
 	lp->e_d_tov = 2 * 1000;	/* FC-FS default */
 	lp->r_a_tov = 2 * 2 * 1000;
@@ -181,9 +182,8 @@ static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev)
 	if (fc_set_mfs(lp, mfs))
 		return -EINVAL;
 
-	lp->link_status = ~FC_PAUSE & ~FC_LINK_UP;
 	if (!fcoe_link_ok(lp))
-		lp->link_status |= FC_LINK_UP;
+		lp->link_up = 1;
 
 	/* offload features support */
 	if (fc->real_dev->features & NETIF_F_SG)
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index e419f486cdb3..296071043f55 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -504,7 +504,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
 	if (rc) {
 		fcoe_insert_wait_queue(lp, skb);
 		if (fc->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH)
-			fc_pause(lp);
+			lp->qfull = 1;
 	}
 
 	return 0;
@@ -718,7 +718,7 @@ static void fcoe_recv_flogi(struct fcoe_softc *fc, struct fc_frame *fp, u8 *sa)
  * fcoe_watchdog - fcoe timer callback
  * @vp:
  *
- * This checks the pending queue length for fcoe and put fcoe to be paused state
+ * This checks the pending queue length for fcoe and set lport qfull
  * if the FCOE_MAX_QUEUE_DEPTH is reached. This is done for all fc_lport on the
  * fcoe_hostlist.
  *
@@ -728,17 +728,17 @@ void fcoe_watchdog(ulong vp)
 {
 	struct fc_lport *lp;
 	struct fcoe_softc *fc;
-	int paused = 0;
+	int qfilled = 0;
 
 	read_lock(&fcoe_hostlist_lock);
 	list_for_each_entry(fc, &fcoe_hostlist, list) {
 		lp = fc->lp;
 		if (lp) {
 			if (fc->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH)
-				paused = 1;
+				qfilled = 1;
 			if (fcoe_check_wait_queue(lp) <	 FCOE_MAX_QUEUE_DEPTH) {
-				if (paused)
-					fc_unpause(lp);
+				if (qfilled)
+					lp->qfull = 0;
 			}
 		}
 	}
@@ -767,8 +767,7 @@ void fcoe_watchdog(ulong vp)
  **/
 static int fcoe_check_wait_queue(struct fc_lport *lp)
 {
-	int rc, unpause = 0;
-	int paused = 0;
+	int rc;
 	struct sk_buff *skb;
 	struct fcoe_softc *fc;
 
@@ -776,10 +775,10 @@ static int fcoe_check_wait_queue(struct fc_lport *lp)
 	spin_lock_bh(&fc->fcoe_pending_queue.lock);
 
 	/*
-	 * is this interface paused?
+	 * if interface pending queue full then set qfull in lport.
 	 */
 	if (fc->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH)
-		paused = 1;
+		lp->qfull = 1;
 	if (fc->fcoe_pending_queue.qlen) {
 		while ((skb = __skb_dequeue(&fc->fcoe_pending_queue)) != NULL) {
 			spin_unlock_bh(&fc->fcoe_pending_queue.lock);
@@ -791,11 +790,9 @@ static int fcoe_check_wait_queue(struct fc_lport *lp)
 			spin_lock_bh(&fc->fcoe_pending_queue.lock);
 		}
 		if (fc->fcoe_pending_queue.qlen < FCOE_MAX_QUEUE_DEPTH)
-			unpause = 1;
+			lp->qfull = 0;
 	}
 	spin_unlock_bh(&fc->fcoe_pending_queue.lock);
-	if ((unpause) && (paused))
-		fc_unpause(lp);
 	return fc->fcoe_pending_queue.qlen;
 }
 
@@ -873,7 +870,7 @@ static int fcoe_device_notification(struct notifier_block *notifier,
 	struct net_device *real_dev = ptr;
 	struct fcoe_softc *fc;
 	struct fcoe_dev_stats *stats;
-	u16 new_status;
+	u32 new_link_up;
 	u32 mfs;
 	int rc = NOTIFY_OK;
 
@@ -890,17 +887,15 @@ static int fcoe_device_notification(struct notifier_block *notifier,
 		goto out;
 	}
 
-	new_status = lp->link_status;
+	new_link_up = lp->link_up;
 	switch (event) {
 	case NETDEV_DOWN:
 	case NETDEV_GOING_DOWN:
-		new_status &= ~FC_LINK_UP;
+		new_link_up = 0;
 		break;
 	case NETDEV_UP:
 	case NETDEV_CHANGE:
-		new_status &= ~FC_LINK_UP;
-		if (!fcoe_link_ok(lp))
-			new_status |= FC_LINK_UP;
+		new_link_up = !fcoe_link_ok(lp);
 		break;
 	case NETDEV_CHANGEMTU:
 		mfs = fc->real_dev->mtu -
@@ -908,17 +903,15 @@ static int fcoe_device_notification(struct notifier_block *notifier,
 			 sizeof(struct fcoe_crc_eof));
 		if (mfs >= FC_MIN_MAX_FRAME)
 			fc_set_mfs(lp, mfs);
-		new_status &= ~FC_LINK_UP;
-		if (!fcoe_link_ok(lp))
-			new_status |= FC_LINK_UP;
+		new_link_up = !fcoe_link_ok(lp);
 		break;
 	case NETDEV_REGISTER:
 		break;
 	default:
 		FC_DBG("unknown event %ld call", event);
 	}
-	if (lp->link_status != new_status) {
-		if ((new_status & FC_LINK_UP) == FC_LINK_UP)
+	if (lp->link_up != new_link_up) {
+		if (new_link_up)
 			fc_linkup(lp);
 		else {
 			stats = lp->dev_stats[smp_processor_id()];
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 404e63ff46b8..f440aaca39c2 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -1621,7 +1621,7 @@ out:
 static inline int fc_fcp_lport_queue_ready(struct fc_lport *lp)
 {
 	/* lock ? */
-	return (lp->state == LPORT_ST_READY) && (lp->link_status & FC_LINK_UP);
+	return (lp->state == LPORT_ST_READY) && lp->link_up && !lp->qfull;
 }
 
 /**
@@ -1890,7 +1890,7 @@ int fc_eh_abort(struct scsi_cmnd *sc_cmd)
 	lp = shost_priv(sc_cmd->device->host);
 	if (lp->state != LPORT_ST_READY)
 		return rc;
-	else if (!(lp->link_status & FC_LINK_UP))
+	else if (!lp->link_up)
 		return rc;
 
 	spin_lock_irqsave(lp->host->host_lock, flags);
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 5db223ce3b25..a6ab692f5f51 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -250,7 +250,7 @@ void fc_get_host_port_state(struct Scsi_Host *shost)
 {
 	struct fc_lport *lp = shost_priv(shost);
 
-	if ((lp->link_status & FC_LINK_UP) == FC_LINK_UP)
+	if (lp->link_up)
 		fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
 	else
 		fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
@@ -577,8 +577,8 @@ void fc_linkup(struct fc_lport *lport)
 		       fc_host_port_id(lport->host));
 
 	mutex_lock(&lport->lp_mutex);
-	if ((lport->link_status & FC_LINK_UP) != FC_LINK_UP) {
-		lport->link_status |= FC_LINK_UP;
+	if (!lport->link_up) {
+		lport->link_up = 1;
 
 		if (lport->state == LPORT_ST_RESET)
 			fc_lport_enter_flogi(lport);
@@ -597,8 +597,8 @@ void fc_linkdown(struct fc_lport *lport)
 	FC_DEBUG_LPORT("Link is down for port (%6x)\n",
 		       fc_host_port_id(lport->host));
 
-	if ((lport->link_status & FC_LINK_UP) == FC_LINK_UP) {
-		lport->link_status &= ~(FC_LINK_UP);
+	if (lport->link_up) {
+		lport->link_up = 0;
 		fc_lport_enter_reset(lport);
 		lport->tt.fcp_cleanup(lport);
 	}
@@ -606,30 +606,6 @@ void fc_linkdown(struct fc_lport *lport)
 }
 EXPORT_SYMBOL(fc_linkdown);
 
-/**
- * fc_pause - Pause the flow of frames
- * @lport: The lport to be paused
- */
-void fc_pause(struct fc_lport *lport)
-{
-	mutex_lock(&lport->lp_mutex);
-	lport->link_status |= FC_PAUSE;
-	mutex_unlock(&lport->lp_mutex);
-}
-EXPORT_SYMBOL(fc_pause);
-
-/**
- * fc_unpause - Unpause the flow of frames
- * @lport: The lport to be unpaused
- */
-void fc_unpause(struct fc_lport *lport)
-{
-	mutex_lock(&lport->lp_mutex);
-	lport->link_status &= ~(FC_PAUSE);
-	mutex_unlock(&lport->lp_mutex);
-}
-EXPORT_SYMBOL(fc_unpause);
-
 /**
  * fc_fabric_logoff - Logout of the fabric
  * @lport:	      fc_lport pointer to logoff the fabric
@@ -977,7 +953,7 @@ static void fc_lport_enter_reset(struct fc_lport *lport)
 	fc_host_fabric_name(lport->host) = 0;
 	fc_host_port_id(lport->host) = 0;
 
-	if ((lport->link_status & FC_LINK_UP) == FC_LINK_UP)
+	if (lport->link_up)
 		fc_lport_enter_flogi(lport);
 }
 
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 042f4ade73d7..b9e6c1cd8914 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -68,9 +68,6 @@
 /*
  * FC HBA status
  */
-#define FC_PAUSE		    (1 << 1)
-#define FC_LINK_UP		    (1 << 0)
-
 enum fc_lport_state {
 	LPORT_ST_NONE = 0,
 	LPORT_ST_FLOGI,
@@ -603,7 +600,8 @@ struct fc_lport {
 
 	/* Operational Information */
 	struct libfc_function_template tt;
-	u16			link_status;
+	u8			link_up;
+	u8			qfull;
 	enum fc_lport_state	state;
 	unsigned long		boot_time;
 
@@ -703,12 +701,6 @@ void fc_linkup(struct fc_lport *);
  */
 void fc_linkdown(struct fc_lport *);
 
-/*
- * Pause and unpause traffic.
- */
-void fc_pause(struct fc_lport *);
-void fc_unpause(struct fc_lport *);
-
 /*
  * Configure the local port.
  */
-- 
cgit v1.2.3


From 6755db1cd4587084be85f860b7aa7c0cc9d776dc Mon Sep 17 00:00:00 2001
From: Chris Leech <christopher.leech@intel.com>
Date: Fri, 27 Feb 2009 10:55:02 -0800
Subject: [SCSI] libfc: rport retry on LS_RJT from certain ELS

This allows any rport ELS to retry on LS_RJT.

The rport error handling would only retry on resource allocation failures
and exchange timeouts.  I have a target that will occasionally reject PLOGI
when we do a quick LOGO/PLOGI.  When a critical ELS was rejected, libfc would
fail silently leaving the rport in a dead state.

The retry count and delay are managed by fc_rport_error_retry.  If the retry
count is exceeded fc_rport_error will be called.  When retrying is not the
correct course of action, fc_rport_error can be called directly.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/libfc/fc_exch.c  |   2 -
 drivers/scsi/libfc/fc_rport.c | 111 ++++++++++++++++++++++++------------------
 include/scsi/fc/fc_fs.h       |   5 ++
 3 files changed, 69 insertions(+), 49 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index dd269e5f953e..8c4018956d4c 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -32,8 +32,6 @@
 #include <scsi/libfc.h>
 #include <scsi/fc_encode.h>
 
-#define	  FC_DEF_R_A_TOV      (10 * 1000) /* resource allocation timeout */
-
 /*
  * fc_exch_debug can be set in debugger or at compile time to get more logs.
  */
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 717575934152..600a8fffa940 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -81,6 +81,7 @@ static void fc_rport_recv_logo_req(struct fc_rport *,
 				   struct fc_seq *, struct fc_frame *);
 static void fc_rport_timeout(struct work_struct *);
 static void fc_rport_error(struct fc_rport *, struct fc_frame *);
+static void fc_rport_error_retry(struct fc_rport *, struct fc_frame *);
 static void fc_rport_work(struct work_struct *);
 
 static const char *fc_rport_state_names[] = {
@@ -410,57 +411,73 @@ static void fc_rport_timeout(struct work_struct *work)
 }
 
 /**
- * fc_rport_error - Handler for any errors
+ * fc_rport_error - Error handler, called once retries have been exhausted
  * @rport: The fc_rport object
  * @fp: The frame pointer
  *
- * If the error was caused by a resource allocation failure
- * then wait for half a second and retry, otherwise retry
- * immediately.
- *
  * Locking Note: The rport lock is expected to be held before
  * calling this routine
  */
 static void fc_rport_error(struct fc_rport *rport, struct fc_frame *fp)
 {
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
-	unsigned long delay = 0;
 
 	FC_DEBUG_RPORT("Error %ld in state %s, retries %d\n",
 		       PTR_ERR(fp), fc_rport_state(rport), rdata->retries);
 
-	if (!fp || PTR_ERR(fp) == -FC_EX_TIMEOUT) {
-		/*
-		 * Memory allocation failure, or the exchange timed out.
-		 *  Retry after delay
-		 */
-		if (rdata->retries < rdata->local_port->max_retry_count) {
-			rdata->retries++;
-			if (!fp)
-				delay = msecs_to_jiffies(500);
-			get_device(&rport->dev);
-			schedule_delayed_work(&rdata->retry_work, delay);
-		} else {
-			switch (rdata->rp_state) {
-			case RPORT_ST_PLOGI:
-			case RPORT_ST_PRLI:
-			case RPORT_ST_LOGO:
-				rdata->event = RPORT_EV_FAILED;
-				queue_work(rport_event_queue,
-					   &rdata->event_work);
-				break;
-			case RPORT_ST_RTV:
-				fc_rport_enter_ready(rport);
-				break;
-			case RPORT_ST_NONE:
-			case RPORT_ST_READY:
-			case RPORT_ST_INIT:
-				break;
-			}
-		}
+	switch (rdata->rp_state) {
+	case RPORT_ST_PLOGI:
+	case RPORT_ST_PRLI:
+	case RPORT_ST_LOGO:
+		rdata->event = RPORT_EV_FAILED;
+		queue_work(rport_event_queue,
+			   &rdata->event_work);
+		break;
+	case RPORT_ST_RTV:
+		fc_rport_enter_ready(rport);
+		break;
+	case RPORT_ST_NONE:
+	case RPORT_ST_READY:
+	case RPORT_ST_INIT:
+		break;
 	}
 }
 
+/**
+ * fc_rport_error_retry - Error handler when retries are desired
+ * @rport: The fc_rport object
+ * @fp: The frame pointer
+ *
+ * If the error was an exchange timeout retry immediately,
+ * otherwise wait for E_D_TOV.
+ *
+ * Locking Note: The rport lock is expected to be held before
+ * calling this routine
+ */
+static void fc_rport_error_retry(struct fc_rport *rport, struct fc_frame *fp)
+{
+	struct fc_rport_libfc_priv *rdata = rport->dd_data;
+	unsigned long delay = FC_DEF_E_D_TOV;
+
+	/* make sure this isn't an FC_EX_CLOSED error, never retry those */
+	if (PTR_ERR(fp) == -FC_EX_CLOSED)
+		return fc_rport_error(rport, fp);
+
+	if (rdata->retries < rdata->local_port->max_retry_count) {
+		FC_DEBUG_RPORT("Error %ld in state %s, retrying\n",
+			       PTR_ERR(fp), fc_rport_state(rport));
+		rdata->retries++;
+		/* no additional delay on exchange timeouts */
+		if (PTR_ERR(fp) == -FC_EX_TIMEOUT)
+			delay = 0;
+		get_device(&rport->dev);
+		schedule_delayed_work(&rdata->retry_work, delay);
+		return;
+	}
+
+	return fc_rport_error(rport, fp);
+}
+
 /**
  * fc_rport_plogi_recv_resp - Handle incoming ELS PLOGI response
  * @sp: current sequence in the PLOGI exchange
@@ -495,7 +512,7 @@ static void fc_rport_plogi_resp(struct fc_seq *sp, struct fc_frame *fp,
 	}
 
 	if (IS_ERR(fp)) {
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 		goto err;
 	}
 
@@ -527,7 +544,7 @@ static void fc_rport_plogi_resp(struct fc_seq *sp, struct fc_frame *fp,
 		else
 			fc_rport_enter_prli(rport);
 	} else
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 
 out:
 	fc_frame_free(fp);
@@ -557,14 +574,14 @@ static void fc_rport_enter_plogi(struct fc_rport *rport)
 	rport->maxframe_size = FC_MIN_MAX_PAYLOAD;
 	fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi));
 	if (!fp) {
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 		return;
 	}
 	rdata->e_d_tov = lport->e_d_tov;
 
 	if (!lport->tt.elsct_send(lport, rport, fp, ELS_PLOGI,
 				  fc_rport_plogi_resp, rport, lport->e_d_tov))
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 	else
 		get_device(&rport->dev);
 }
@@ -604,7 +621,7 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp,
 	}
 
 	if (IS_ERR(fp)) {
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 		goto err;
 	}
 
@@ -662,7 +679,7 @@ static void fc_rport_logo_resp(struct fc_seq *sp, struct fc_frame *fp,
 		       rport->port_id);
 
 	if (IS_ERR(fp)) {
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 		goto err;
 	}
 
@@ -712,13 +729,13 @@ static void fc_rport_enter_prli(struct fc_rport *rport)
 
 	fp = fc_frame_alloc(lport, sizeof(*pp));
 	if (!fp) {
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 		return;
 	}
 
 	if (!lport->tt.elsct_send(lport, rport, fp, ELS_PRLI,
 				  fc_rport_prli_resp, rport, lport->e_d_tov))
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 	else
 		get_device(&rport->dev);
 }
@@ -809,13 +826,13 @@ static void fc_rport_enter_rtv(struct fc_rport *rport)
 
 	fp = fc_frame_alloc(lport, sizeof(struct fc_els_rtv));
 	if (!fp) {
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 		return;
 	}
 
 	if (!lport->tt.elsct_send(lport, rport, fp, ELS_RTV,
 				     fc_rport_rtv_resp, rport, lport->e_d_tov))
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 	else
 		get_device(&rport->dev);
 }
@@ -840,13 +857,13 @@ static void fc_rport_enter_logo(struct fc_rport *rport)
 
 	fp = fc_frame_alloc(lport, sizeof(struct fc_els_logo));
 	if (!fp) {
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 		return;
 	}
 
 	if (!lport->tt.elsct_send(lport, rport, fp, ELS_LOGO,
 				  fc_rport_logo_resp, rport, lport->e_d_tov))
-		fc_rport_error(rport, fp);
+		fc_rport_error_retry(rport, fp);
 	else
 		get_device(&rport->dev);
 }
diff --git a/include/scsi/fc/fc_fs.h b/include/scsi/fc/fc_fs.h
index 3e4801d2bdbb..1b7af3a64c7c 100644
--- a/include/scsi/fc/fc_fs.h
+++ b/include/scsi/fc/fc_fs.h
@@ -337,4 +337,9 @@ enum fc_pf_rjt_reason {
 	FC_RJT_VENDOR =		0xff,	/* vendor specific reject */
 };
 
+/* default timeout values */
+
+#define FC_DEF_E_D_TOV	2000UL
+#define FC_DEF_R_A_TOV	10000UL
+
 #endif /* _FC_FS_H_ */
-- 
cgit v1.2.3


From 5101ff99f59aefb72e0c96e82aa32048ac9f8425 Mon Sep 17 00:00:00 2001
From: Robert Love <robert.w.love@intel.com>
Date: Fri, 27 Feb 2009 10:55:18 -0800
Subject: [SCSI] libfc: Don't violate transport template for rogue port
 creation

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/libfc/fc_disc.c  | 6 +++---
 drivers/scsi/libfc/fc_lport.c | 4 ++--
 drivers/scsi/libfc/fc_rport.c | 3 +++
 include/scsi/libfc.h          | 5 +++++
 4 files changed, 13 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c
index dd1564c9e04a..15e3f840c049 100644
--- a/drivers/scsi/libfc/fc_disc.c
+++ b/drivers/scsi/libfc/fc_disc.c
@@ -430,7 +430,7 @@ static int fc_disc_new_target(struct fc_disc *disc,
 				dp.ids.port_name = ids->port_name;
 				dp.ids.node_name = ids->node_name;
 				dp.ids.roles = ids->roles;
-				rport = fc_rport_rogue_create(&dp);
+				rport = lport->tt.rport_create(&dp);
 			}
 			if (!rport)
 				error = -ENOMEM;
@@ -617,7 +617,7 @@ static int fc_disc_gpn_ft_parse(struct fc_disc *disc, void *buf, size_t len)
 
 		if ((dp.ids.port_id != fc_host_port_id(lport->host)) &&
 		    (dp.ids.port_name != lport->wwpn)) {
-			rport = fc_rport_rogue_create(&dp);
+			rport = lport->tt.rport_create(&dp);
 			if (rport) {
 				rdata = rport->dd_data;
 				rdata->ops = &fc_disc_rport_ops;
@@ -769,7 +769,7 @@ static void fc_disc_single(struct fc_disc *disc, struct fc_disc_port *dp)
 	if (rport)
 		fc_disc_del_target(disc, rport);
 
-	new_rport = fc_rport_rogue_create(dp);
+	new_rport = lport->tt.rport_create(dp);
 	if (new_rport) {
 		rdata = new_rport->dd_data;
 		rdata->ops = &fc_disc_rport_ops;
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index e6ea4f119530..07335ae2947c 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -232,7 +232,7 @@ static void fc_lport_ptp_setup(struct fc_lport *lport,
 		lport->ptp_rp = NULL;
 	}
 
-	lport->ptp_rp = fc_rport_rogue_create(&dp);
+	lport->ptp_rp = lport->tt.rport_create(&dp);
 
 	lport->tt.rport_login(lport->ptp_rp);
 
@@ -1282,7 +1282,7 @@ static void fc_lport_enter_dns(struct fc_lport *lport)
 
 	fc_lport_state_enter(lport, LPORT_ST_DNS);
 
-	rport = fc_rport_rogue_create(&dp);
+	rport = lport->tt.rport_create(&dp);
 	if (!rport)
 		goto err;
 
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 600a8fffa940..81b3ca188789 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -1271,6 +1271,9 @@ static void fc_rport_flush_queue(void)
 
 int fc_rport_init(struct fc_lport *lport)
 {
+	if (!lport->tt.rport_create)
+		lport->tt.rport_create = fc_rport_rogue_create;
+
 	if (!lport->tt.rport_login)
 		lport->tt.rport_login = fc_rport_login;
 
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index b9e6c1cd8914..37df48e13b97 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -489,6 +489,11 @@ struct libfc_function_template {
 	 * Remote Port interfaces
 	 */
 
+	/*
+	 * Create a remote port
+	 */
+	struct fc_rport *(*rport_create)(struct fc_disc_port *);
+
 	/*
 	 * Initiates the RP state machine. It is called from the LP module.
 	 * This function will issue the following commands to the N_Port
-- 
cgit v1.2.3


From 0ae4d4ae47d2ccbcad813b0d6d8fe12590c7d648 Mon Sep 17 00:00:00 2001
From: Robert Love <robert.w.love@intel.com>
Date: Fri, 27 Feb 2009 10:55:39 -0800
Subject: [SCSI] libfc: Cleanup libfc_function_template comments

Made the comments more like the comments for struct scsi_host_template.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/scsi/libfc.h | 107 +++++++++++++++++++++++++++++++--------------------
 1 file changed, 66 insertions(+), 41 deletions(-)

(limited to 'include')

diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 37df48e13b97..282829cdf352 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -336,31 +336,17 @@ struct fc_exch {
 
 struct libfc_function_template {
 
-	/**
-	 * Mandatory Fields
-	 *
-	 * These handlers must be implemented by the LLD.
-	 */
-
 	/*
 	 * Interface to send a FC frame
-	 */
-	int (*frame_send)(struct fc_lport *lp, struct fc_frame *fp);
-
-	/**
-	 * Optional Fields
 	 *
-	 * The LLD may choose to implement any of the following handlers.
-	 * If LLD doesn't specify hander and leaves its pointer NULL then
-	 * the default libfc function will be used for that handler.
-	 */
-
-	/**
-	 * ELS/CT interfaces
+	 * STATUS: REQUIRED
 	 */
+	int (*frame_send)(struct fc_lport *lp, struct fc_frame *fp);
 
 	/*
-	 * elsct_send - sends ELS/CT frame
+	 * Interface to send ELS/CT frames
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	struct fc_seq *(*elsct_send)(struct fc_lport *lport,
 				     struct fc_rport *rport,
@@ -370,9 +356,6 @@ struct libfc_function_template {
 					     struct fc_frame *fp,
 					     void *arg),
 				     void *arg, u32 timer_msec);
-	/**
-	 * Exhance Manager interfaces
-	 */
 
 	/*
 	 * Send the FC frame payload using a new exchange and sequence.
@@ -404,6 +387,8 @@ struct libfc_function_template {
 	 * timer_msec argument is specified. The timer is canceled when
 	 * it fires or when the exchange is done. The exchange timeout handler
 	 * is registered by EM layer.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	struct fc_seq *(*exch_seq_send)(struct fc_lport *lp,
 					struct fc_frame *fp,
@@ -415,14 +400,18 @@ struct libfc_function_template {
 					void *arg, unsigned int timer_msec);
 
 	/*
-	 * send a frame using existing sequence and exchange.
+	 * Send a frame using an existing sequence and exchange.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	int (*seq_send)(struct fc_lport *lp, struct fc_seq *sp,
 			struct fc_frame *fp);
 
 	/*
-	 * Send ELS response using mainly infomation
-	 * in exchange and sequence in EM layer.
+	 * Send an ELS response using infomation from a previous
+	 * exchange and sequence.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*seq_els_rsp_send)(struct fc_seq *sp, enum fc_els_cmd els_cmd,
 				 struct fc_seq_els_data *els_data);
@@ -434,6 +423,8 @@ struct libfc_function_template {
 	 * A timer_msec can be specified for abort timeout, if non-zero
 	 * timer_msec value is specified then exchange resp handler
 	 * will be called with timeout error if no response to abort.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	int (*seq_exch_abort)(const struct fc_seq *req_sp,
 			      unsigned int timer_msec);
@@ -441,6 +432,8 @@ struct libfc_function_template {
 	/*
 	 * Indicate that an exchange/sequence tuple is complete and the memory
 	 * allocated for the related objects may be freed.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*exch_done)(struct fc_seq *sp);
 
@@ -448,6 +441,8 @@ struct libfc_function_template {
 	 * Assigns a EM and a free XID for an new exchange and then
 	 * allocates a new exchange and sequence pair.
 	 * The fp can be used to determine free XID.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	struct fc_exch *(*exch_get)(struct fc_lport *lp, struct fc_frame *fp);
 
@@ -455,12 +450,16 @@ struct libfc_function_template {
 	 * Release previously assigned XID by exch_get API.
 	 * The LLD may implement this if XID is assigned by LLD
 	 * in exch_get().
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*exch_put)(struct fc_lport *lp, struct fc_exch_mgr *mp,
 			 u16 ex_id);
 
 	/*
 	 * Start a new sequence on the same exchange/sequence tuple.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	struct fc_seq *(*seq_start_next)(struct fc_seq *sp);
 
@@ -468,26 +467,33 @@ struct libfc_function_template {
 	 * Reset an exchange manager, completing all sequences and exchanges.
 	 * If s_id is non-zero, reset only exchanges originating from that FID.
 	 * If d_id is non-zero, reset only exchanges sending to that FID.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*exch_mgr_reset)(struct fc_lport *,
 			       u32 s_id, u32 d_id);
 
-	void (*rport_flush_queue)(void);
-	/**
-	 * Local Port interfaces
+	/*
+	 * Flush the rport work queue. Generally used before shutdown.
+	 *
+	 * STATUS: OPTIONAL
 	 */
+	void (*rport_flush_queue)(void);
 
 	/*
-	 * Receive a frame to a local port.
+	 * Receive a frame for a local port.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*lport_recv)(struct fc_lport *lp, struct fc_seq *sp,
 			   struct fc_frame *fp);
 
-	int (*lport_reset)(struct fc_lport *);
-
-	/**
-	 * Remote Port interfaces
+	/*
+	 * Reset the local port.
+	 *
+	 * STATUS: OPTIONAL
 	 */
+	int (*lport_reset)(struct fc_lport *);
 
 	/*
 	 * Create a remote port
@@ -502,26 +508,33 @@ struct libfc_function_template {
 	 * - PLOGI
 	 * - PRLI
 	 * - RTV
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	int (*rport_login)(struct fc_rport *rport);
 
 	/*
 	 * Logoff, and remove the rport from the transport if
 	 * it had been added. This will send a LOGO to the target.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	int (*rport_logoff)(struct fc_rport *rport);
 
 	/*
 	 * Recieve a request from a remote port.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*rport_recv_req)(struct fc_seq *, struct fc_frame *,
 			       struct fc_rport *);
 
-	struct fc_rport *(*rport_lookup)(const struct fc_lport *, u32);
-
-	/**
-	 * FCP interfaces
+	/*
+	 * lookup an rport by it's port ID.
+	 *
+	 * STATUS: OPTIONAL
 	 */
+	struct fc_rport *(*rport_lookup)(const struct fc_lport *, u32);
 
 	/*
 	 * Send a fcp cmd from fsp pkt.
@@ -529,30 +542,38 @@ struct libfc_function_template {
 	 *
 	 * The resp handler is called when FCP_RSP received.
 	 *
+	 * STATUS: OPTIONAL
 	 */
 	int (*fcp_cmd_send)(struct fc_lport *lp, struct fc_fcp_pkt *fsp,
 			    void (*resp)(struct fc_seq *, struct fc_frame *fp,
 					 void *arg));
 
 	/*
-	 * Used at least durring linkdown and reset
+	 * Cleanup the FCP layer, used durring link down and reset
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*fcp_cleanup)(struct fc_lport *lp);
 
 	/*
 	 * Abort all I/O on a local port
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*fcp_abort_io)(struct fc_lport *lp);
 
-	/**
-	 * Discovery interfaces
+	/*
+	 * Receive a request for the discovery layer.
+	 *
+	 * STATUS: OPTIONAL
 	 */
-
 	void (*disc_recv_req)(struct fc_seq *,
 			      struct fc_frame *, struct fc_lport *);
 
 	/*
 	 * Start discovery for a local port.
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*disc_start)(void (*disc_callback)(struct fc_lport *,
 						 enum fc_disc_event),
@@ -561,6 +582,8 @@ struct libfc_function_template {
 	/*
 	 * Stop discovery for a given lport. This will remove
 	 * all discovered rports
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*disc_stop) (struct fc_lport *);
 
@@ -568,6 +591,8 @@ struct libfc_function_template {
 	 * Stop discovery for a given lport. This will block
 	 * until all discovered rports are deleted from the
 	 * FC transport class
+	 *
+	 * STATUS: OPTIONAL
 	 */
 	void (*disc_stop_final) (struct fc_lport *);
 };
-- 
cgit v1.2.3


From 85122ea40c4fc82af5b66b8683f525c2c4a36d1a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 6 Mar 2009 16:30:07 +0100
Subject: ALSA: Remove unneeded snd_pcm_substream.timer_lock

The timer callbacks are called in the protected status by the lock
of the timer instance, so there is no need for an extra lock in the
PCM substream.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/pcm.h    | 1 -
 sound/core/pcm.c       | 1 -
 sound/core/pcm_timer.c | 6 ------
 3 files changed, 8 deletions(-)

(limited to 'include')

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 40c5a6fa6bcd..e4f60076e6c4 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -364,7 +364,6 @@ struct snd_pcm_substream {
         /* -- timer section -- */
 	struct snd_timer *timer;		/* timer */
 	unsigned timer_running: 1;	/* time is running */
-	spinlock_t timer_lock;
 	/* -- next substream -- */
 	struct snd_pcm_substream *next;
 	/* -- linked substreams -- */
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 192a433a2403..37f567a68ef2 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -667,7 +667,6 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
 		spin_lock_init(&substream->self_group.lock);
 		INIT_LIST_HEAD(&substream->self_group.substreams);
 		list_add_tail(&substream->link_list, &substream->self_group.substreams);
-		spin_lock_init(&substream->timer_lock);
 		atomic_set(&substream->mmap_count, 0);
 		prev = substream;
 	}
diff --git a/sound/core/pcm_timer.c b/sound/core/pcm_timer.c
index 2c89c04f2916..ca8068b63d6c 100644
--- a/sound/core/pcm_timer.c
+++ b/sound/core/pcm_timer.c
@@ -85,25 +85,19 @@ static unsigned long snd_pcm_timer_resolution(struct snd_timer * timer)
 
 static int snd_pcm_timer_start(struct snd_timer * timer)
 {
-	unsigned long flags;
 	struct snd_pcm_substream *substream;
 	
 	substream = snd_timer_chip(timer);
-	spin_lock_irqsave(&substream->timer_lock, flags);
 	substream->timer_running = 1;
-	spin_unlock_irqrestore(&substream->timer_lock, flags);
 	return 0;
 }
 
 static int snd_pcm_timer_stop(struct snd_timer * timer)
 {
-	unsigned long flags;
 	struct snd_pcm_substream *substream;
 	
 	substream = snd_timer_chip(timer);
-	spin_lock_irqsave(&substream->timer_lock, flags);
 	substream->timer_running = 0;
-	spin_unlock_irqrestore(&substream->timer_lock, flags);
 	return 0;
 }
 
-- 
cgit v1.2.3


From f5b1db634280ecaf3147ee996f26aad0ed4828c4 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 16 Jan 2009 18:15:22 +0100
Subject: ALSA: add snd_ctl_add_slave_uncached()

Added snd_ctl_add_slave_uncached() function to add a slave element
with volatile controls.  The values of normal slave elements are
supposed to be cachable, i.e. they are changed only via the put
callbacks.  OTOH, when a slave element is volatile and its values may
be changed by other reason (e.g. hardware status change), the values
will get inconsistent.

The new function allows the slave elements with volatile changes.
When the slave is tied with this call, the native get callback is
issued at each time so that the values are always updated.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/control.h | 20 ++++++++++++++++++--
 sound/core/vmaster.c    | 46 +++++++++++++++++++++++++++++-----------------
 2 files changed, 47 insertions(+), 19 deletions(-)

(limited to 'include')

diff --git a/include/sound/control.h b/include/sound/control.h
index 4721b4bba053..4cf8f7aaa13f 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -171,6 +171,22 @@ int snd_ctl_boolean_stereo_info(struct snd_kcontrol *kcontrol,
  */
 struct snd_kcontrol *snd_ctl_make_virtual_master(char *name,
 						 const unsigned int *tlv);
-int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave);
-		      
+int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave,
+		       unsigned int flags);
+/* optional flags for slave */
+#define SND_CTL_SLAVE_NEED_UPDATE	(1 << 0)
+
+static inline int
+snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
+{
+	return _snd_ctl_add_slave(master, slave, 0);
+}
+
+static inline int
+snd_ctl_add_slave_uncached(struct snd_kcontrol *master,
+			   struct snd_kcontrol *slave)
+{
+	return _snd_ctl_add_slave(master, slave, SND_CTL_SLAVE_NEED_UPDATE);
+}
+
 #endif	/* __SOUND_CONTROL_H */
diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c
index 4cc57f902e2c..d51b198d06d9 100644
--- a/sound/core/vmaster.c
+++ b/sound/core/vmaster.c
@@ -50,18 +50,38 @@ struct link_slave {
 	struct link_master *master;
 	struct link_ctl_info info;
 	int vals[2];		/* current values */
+	unsigned int flags;
 	struct snd_kcontrol slave; /* the copy of original control entry */
 };
 
+static int slave_update(struct link_slave *slave)
+{
+	struct snd_ctl_elem_value *uctl;
+	int err, ch;
+
+	uctl = kmalloc(sizeof(*uctl), GFP_KERNEL);
+	if (!uctl)
+		return -ENOMEM;
+	uctl->id = slave->slave.id;
+	err = slave->slave.get(&slave->slave, uctl);
+	for (ch = 0; ch < slave->info.count; ch++)
+		slave->vals[ch] = uctl->value.integer.value[ch];
+	kfree(uctl);
+	return 0;
+}
+
 /* get the slave ctl info and save the initial values */
 static int slave_init(struct link_slave *slave)
 {
 	struct snd_ctl_elem_info *uinfo;
-	struct snd_ctl_elem_value *uctl;
-	int err, ch;
+	int err;
 
-	if (slave->info.count)
-		return 0; /* already initialized */
+	if (slave->info.count) {
+		/* already initialized */
+		if (slave->flags & SND_CTL_SLAVE_NEED_UPDATE)
+			return slave_update(slave);
+		return 0;
+	}
 
 	uinfo = kmalloc(sizeof(*uinfo), GFP_KERNEL);
 	if (!uinfo)
@@ -85,15 +105,7 @@ static int slave_init(struct link_slave *slave)
 	slave->info.max_val = uinfo->value.integer.max;
 	kfree(uinfo);
 
-	uctl = kmalloc(sizeof(*uctl), GFP_KERNEL);
-	if (!uctl)
-		return -ENOMEM;
-	uctl->id = slave->slave.id;
-	err = slave->slave.get(&slave->slave, uctl);
-	for (ch = 0; ch < slave->info.count; ch++)
-		slave->vals[ch] = uctl->value.integer.value[ch];
-	kfree(uctl);
-	return 0;
+	return slave_update(slave);
 }
 
 /* initialize master volume */
@@ -229,7 +241,8 @@ static void slave_free(struct snd_kcontrol *kcontrol)
  * - logarithmic volume control (dB level), no linear volume
  * - master can only attenuate the volume, no gain
  */
-int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
+int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave,
+		       unsigned int flags)
 {
 	struct link_master *master_link = snd_kcontrol_chip(master);
 	struct link_slave *srec;
@@ -241,6 +254,7 @@ int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
 	srec->slave = *slave;
 	memcpy(srec->slave.vd, slave->vd, slave->count * sizeof(*slave->vd));
 	srec->master = master_link;
+	srec->flags = flags;
 
 	/* override callbacks */
 	slave->info = slave_info;
@@ -254,8 +268,7 @@ int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
 	list_add_tail(&srec->list, &master_link->slaves);
 	return 0;
 }
-
-EXPORT_SYMBOL(snd_ctl_add_slave);
+EXPORT_SYMBOL(_snd_ctl_add_slave);
 
 /*
  * ctl callbacks for master controls
@@ -367,5 +380,4 @@ struct snd_kcontrol *snd_ctl_make_virtual_master(char *name,
 
 	return kctl;
 }
-
 EXPORT_SYMBOL(snd_ctl_make_virtual_master);
-- 
cgit v1.2.3


From 79c7cdd5441f5d3900c1632adcc8cd2bee35c8da Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 9 Feb 2009 14:47:19 +0100
Subject: ALSA: Add kernel-doc comments to vmaster stuff

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 .../sound/alsa/DocBook/alsa-driver-api.tmpl        |  4 +++
 include/sound/control.h                            | 32 ++++++++++++++++++++++
 sound/core/vmaster.c                               | 16 +++++++++--
 3 files changed, 50 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl b/Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl
index 9d644f7e241e..115962827c81 100644
--- a/Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl
+++ b/Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl
@@ -71,6 +71,10 @@
 !Esound/pci/ac97/ac97_codec.c
 !Esound/pci/ac97/ac97_pcm.c
      </sect1>
+     <sect1><title>Virtual Master Control API</title>
+!Esound/core/vmaster.c
+!Iinclude/sound/control.h
+     </sect1>
   </chapter>
   <chapter><title>MIDI API</title>
      <sect1><title>Raw MIDI API</title>
diff --git a/include/sound/control.h b/include/sound/control.h
index 4cf8f7aaa13f..ef96f07aa03b 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -176,12 +176,44 @@ int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave,
 /* optional flags for slave */
 #define SND_CTL_SLAVE_NEED_UPDATE	(1 << 0)
 
+/**
+ * snd_ctl_add_slave - Add a virtual slave control
+ * @master: vmaster element
+ * @slave: slave element to add
+ *
+ * Add a virtual slave control to the given master element created via
+ * snd_ctl_create_virtual_master() beforehand.
+ * Returns zero if successful or a negative error code.
+ *
+ * All slaves must be the same type (returning the same information
+ * via info callback).  The fucntion doesn't check it, so it's your
+ * responsibility.
+ *
+ * Also, some additional limitations:
+ * at most two channels,
+ * logarithmic volume control (dB level) thus no linear volume,
+ * master can only attenuate the volume without gain
+ */
 static inline int
 snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
 {
 	return _snd_ctl_add_slave(master, slave, 0);
 }
 
+/**
+ * snd_ctl_add_slave_uncached - Add a virtual slave control
+ * @master: vmaster element
+ * @slave: slave element to add
+ *
+ * Add a virtual slave control to the given master.
+ * Unlike snd_ctl_add_slave(), the element added via this function
+ * is supposed to have volatile values, and get callback is called
+ * at each time quried from the master.
+ *
+ * When the control peeks the hardware values directly and the value
+ * can be changed by other means than the put callback of the element,
+ * this function should be used to keep the value always up-to-date.
+ */
 static inline int
 snd_ctl_add_slave_uncached(struct snd_kcontrol *master,
 			   struct snd_kcontrol *slave)
diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c
index d51b198d06d9..257624bd1997 100644
--- a/sound/core/vmaster.c
+++ b/sound/core/vmaster.c
@@ -340,8 +340,20 @@ static void master_free(struct snd_kcontrol *kcontrol)
 }
 
 
-/*
- * Create a virtual master control with the given name
+/**
+ * snd_ctl_make_virtual_master - Create a virtual master control
+ * @name: name string of the control element to create
+ * @tlv: optional TLV int array for dB information
+ *
+ * Creates a virtual matster control with the given name string.
+ * Returns the created control element, or NULL for errors (ENOMEM).
+ *
+ * After creating a vmaster element, you can add the slave controls
+ * via snd_ctl_add_slave() or snd_ctl_add_slave_uncached().
+ *
+ * The optional argument @tlv can be used to specify the TLV information
+ * for dB scale of the master control.  It should be a single element
+ * with #SNDRV_CTL_TLVT_DB_SCALE type, and should be the max 0dB.
  */
 struct snd_kcontrol *snd_ctl_make_virtual_master(char *name,
 						 const unsigned int *tlv)
-- 
cgit v1.2.3


From 118dd6bfe7e0cddc8ab417ead19cc76000e92773 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 23 Feb 2009 16:35:21 +0100
Subject: ALSA: Clean up snd_monitor_file management

Use the standard linked list for snd_monitor_file management.
Also, move the list deletion of shutdown_list element into
snd_disconnect_release() (for simplification).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/core.h |  6 +++---
 sound/core/init.c    | 42 +++++++++++++++---------------------------
 2 files changed, 18 insertions(+), 30 deletions(-)

(limited to 'include')

diff --git a/include/sound/core.h b/include/sound/core.h
index f632484bc743..bd4529e0c27e 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -97,9 +97,9 @@ struct snd_device {
 
 struct snd_monitor_file {
 	struct file *file;
-	struct snd_monitor_file *next;
 	const struct file_operations *disconnected_f_op;
-	struct list_head shutdown_list;
+	struct list_head shutdown_list;	/* still need to shutdown */
+	struct list_head list;	/* link of monitor files */
 };
 
 /* main structure for soundcard */
@@ -134,7 +134,7 @@ struct snd_card {
 	struct snd_info_entry *proc_id;	/* the card id */
 	struct proc_dir_entry *proc_root_link;	/* number link to real id */
 
-	struct snd_monitor_file *files; /* all files associated to this card */
+	struct list_head files_list;	/* all files associated to this card */
 	struct snd_shutdown_f_ops *s_f_ops; /* file operations in the shutdown
 								state */
 	spinlock_t files_lock;		/* lock the files for this card */
diff --git a/sound/core/init.c b/sound/core/init.c
index 0d5520c415d3..05c6da554cbf 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -195,6 +195,7 @@ struct snd_card *snd_card_new(int idx, const char *xid,
 	INIT_LIST_HEAD(&card->controls);
 	INIT_LIST_HEAD(&card->ctl_files);
 	spin_lock_init(&card->files_lock);
+	INIT_LIST_HEAD(&card->files_list);
 	init_waitqueue_head(&card->shutdown_sleep);
 #ifdef CONFIG_PM
 	mutex_init(&card->power_lock);
@@ -259,6 +260,7 @@ static int snd_disconnect_release(struct inode *inode, struct file *file)
 	list_for_each_entry(_df, &shutdown_files, shutdown_list) {
 		if (_df->file == file) {
 			df = _df;
+			list_del_init(&df->shutdown_list);
 			break;
 		}
 	}
@@ -347,8 +349,7 @@ int snd_card_disconnect(struct snd_card *card)
 	/* phase 2: replace file->f_op with special dummy operations */
 	
 	spin_lock(&card->files_lock);
-	mfile = card->files;
-	while (mfile) {
+	list_for_each_entry(mfile, &card->files_list, list) {
 		file = mfile->file;
 
 		/* it's critical part, use endless loop */
@@ -361,8 +362,6 @@ int snd_card_disconnect(struct snd_card *card)
 
 		mfile->file->f_op = &snd_shutdown_f_ops;
 		fops_get(mfile->file->f_op);
-		
-		mfile = mfile->next;
 	}
 	spin_unlock(&card->files_lock);	
 
@@ -442,7 +441,7 @@ int snd_card_free_when_closed(struct snd_card *card)
 		return ret;
 
 	spin_lock(&card->files_lock);
-	if (card->files == NULL)
+	if (list_empty(&card->files_list))
 		free_now = 1;
 	else
 		card->free_on_last_close = 1;
@@ -462,7 +461,7 @@ int snd_card_free(struct snd_card *card)
 		return ret;
 
 	/* wait, until all devices are ready for the free operation */
-	wait_event(card->shutdown_sleep, card->files == NULL);
+	wait_event(card->shutdown_sleep, list_empty(&card->files_list));
 	snd_card_do_free(card);
 	return 0;
 }
@@ -809,15 +808,13 @@ int snd_card_file_add(struct snd_card *card, struct file *file)
 		return -ENOMEM;
 	mfile->file = file;
 	mfile->disconnected_f_op = NULL;
-	mfile->next = NULL;
 	spin_lock(&card->files_lock);
 	if (card->shutdown) {
 		spin_unlock(&card->files_lock);
 		kfree(mfile);
 		return -ENODEV;
 	}
-	mfile->next = card->files;
-	card->files = mfile;
+	list_add(&mfile->list, &card->files_list);
 	spin_unlock(&card->files_lock);
 	return 0;
 }
@@ -839,29 +836,20 @@ EXPORT_SYMBOL(snd_card_file_add);
  */
 int snd_card_file_remove(struct snd_card *card, struct file *file)
 {
-	struct snd_monitor_file *mfile, *pfile = NULL;
+	struct snd_monitor_file *mfile, *found = NULL;
 	int last_close = 0;
 
 	spin_lock(&card->files_lock);
-	mfile = card->files;
-	while (mfile) {
+	list_for_each_entry(mfile, &card->files_list, list) {
 		if (mfile->file == file) {
-			if (pfile)
-				pfile->next = mfile->next;
-			else
-				card->files = mfile->next;
+			list_del(&mfile->list);
+			if (mfile->disconnected_f_op)
+				fops_put(mfile->disconnected_f_op);
+			found = mfile;
 			break;
 		}
-		pfile = mfile;
-		mfile = mfile->next;
-	}
-	if (mfile && mfile->disconnected_f_op) {
-		fops_put(mfile->disconnected_f_op);
-		spin_lock(&shutdown_lock);
-		list_del(&mfile->shutdown_list);
-		spin_unlock(&shutdown_lock);
 	}
-	if (card->files == NULL)
+	if (list_empty(&card->files_list))
 		last_close = 1;
 	spin_unlock(&card->files_lock);
 	if (last_close) {
@@ -869,11 +857,11 @@ int snd_card_file_remove(struct snd_card *card, struct file *file)
 		if (card->free_on_last_close)
 			snd_card_do_free(card);
 	}
-	if (!mfile) {
+	if (!found) {
 		snd_printk(KERN_ERR "ALSA card file remove problem (%p)\n", file);
 		return -ENOENT;
 	}
-	kfree(mfile);
+	kfree(found);
 	return 0;
 }
 
-- 
cgit v1.2.3


From 9a1b64caac82aa02cb74587ffc798e6f42c6170a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 11 Feb 2009 17:03:49 +0100
Subject: ALSA: rawmidi - Refactor rawmidi open/close codes

Refactor rawmidi open/close code messes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/rawmidi.h |   1 -
 sound/core/rawmidi.c    | 377 +++++++++++++++++++++++++-----------------------
 2 files changed, 194 insertions(+), 184 deletions(-)

(limited to 'include')

diff --git a/include/sound/rawmidi.h b/include/sound/rawmidi.h
index b550a416d075..c23c26585700 100644
--- a/include/sound/rawmidi.h
+++ b/include/sound/rawmidi.h
@@ -42,7 +42,6 @@
 #define SNDRV_RAWMIDI_LFLG_INPUT	(1<<1)
 #define SNDRV_RAWMIDI_LFLG_OPEN		(3<<0)
 #define SNDRV_RAWMIDI_LFLG_APPEND	(1<<2)
-#define	SNDRV_RAWMIDI_LFLG_NOOPENLOCK	(1<<3)
 
 struct snd_rawmidi;
 struct snd_rawmidi_substream;
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index 60f33e9412ad..473247c8e6d3 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -224,156 +224,143 @@ int snd_rawmidi_drain_input(struct snd_rawmidi_substream *substream)
 	return 0;
 }
 
-int snd_rawmidi_kernel_open(struct snd_card *card, int device, int subdevice,
-			    int mode, struct snd_rawmidi_file * rfile)
+/* look for an available substream for the given stream direction;
+ * if a specific subdevice is given, try to assign it
+ */
+static int assign_substream(struct snd_rawmidi *rmidi, int subdevice,
+			    int stream, int mode,
+			    struct snd_rawmidi_substream **sub_ret)
 {
-	struct snd_rawmidi *rmidi;
-	struct list_head *list1, *list2;
-	struct snd_rawmidi_substream *sinput = NULL, *soutput = NULL;
-	struct snd_rawmidi_runtime *input = NULL, *output = NULL;
-	int err;
+	struct snd_rawmidi_substream *substream;
+	struct snd_rawmidi_str *s = &rmidi->streams[stream];
+	static unsigned int info_flags[2] = {
+		[SNDRV_RAWMIDI_STREAM_OUTPUT] = SNDRV_RAWMIDI_INFO_OUTPUT,
+		[SNDRV_RAWMIDI_STREAM_INPUT] = SNDRV_RAWMIDI_INFO_INPUT,
+	};
 
-	if (rfile)
-		rfile->input = rfile->output = NULL;
-	mutex_lock(&register_mutex);
-	rmidi = snd_rawmidi_search(card, device);
-	if (rmidi == NULL) {
-		mutex_unlock(&register_mutex);
-		return -ENODEV;
-	}
-	if (!try_module_get(rmidi->card->module)) {
-		mutex_unlock(&register_mutex);
+	if (!(rmidi->info_flags & info_flags[stream]))
 		return -ENXIO;
+	if (subdevice >= 0 && subdevice >= s->substream_count)
+		return -ENODEV;
+	if (s->substream_opened >= s->substream_count)
+		return -EAGAIN;
+
+	list_for_each_entry(substream, &s->substreams, list) {
+		if (substream->opened) {
+			if (stream == SNDRV_RAWMIDI_STREAM_INPUT ||
+			    !(mode & SNDRV_RAWMIDI_LFLG_APPEND))
+				continue;
+		}
+		if (subdevice < 0 || subdevice == substream->number) {
+			*sub_ret = substream;
+			return 0;
+		}
 	}
-	mutex_unlock(&register_mutex);
+	return -EAGAIN;
+}
 
-	if (!(mode & SNDRV_RAWMIDI_LFLG_NOOPENLOCK))
-		mutex_lock(&rmidi->open_mutex);
+/* open and do ref-counting for the given substream */
+static int open_substream(struct snd_rawmidi *rmidi,
+			  struct snd_rawmidi_substream *substream,
+			  int mode)
+{
+	int err;
+
+	err = snd_rawmidi_runtime_create(substream);
+	if (err < 0)
+		return err;
+	err = substream->ops->open(substream);
+	if (err < 0)
+		return err;
+	substream->opened = 1;
+	if (substream->use_count++ == 0)
+		substream->active_sensing = 1;
+	if (mode & SNDRV_RAWMIDI_LFLG_APPEND)
+		substream->append = 1;
+	rmidi->streams[substream->stream].substream_opened++;
+	return 0;
+}
+
+static void close_substream(struct snd_rawmidi *rmidi,
+			    struct snd_rawmidi_substream *substream,
+			    int cleanup);
+
+static int rawmidi_open_priv(struct snd_rawmidi *rmidi, int subdevice, int mode,
+			     struct snd_rawmidi_file *rfile)
+{
+	struct snd_rawmidi_substream *sinput = NULL, *soutput = NULL;
+	int err;
+
+	rfile->input = rfile->output = NULL;
 	if (mode & SNDRV_RAWMIDI_LFLG_INPUT) {
-		if (!(rmidi->info_flags & SNDRV_RAWMIDI_INFO_INPUT)) {
-			err = -ENXIO;
-			goto __error;
-		}
-		if (subdevice >= 0 && (unsigned int)subdevice >= rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_count) {
-			err = -ENODEV;
-			goto __error;
-		}
-		if (rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_opened >=
-		    rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_count) {
-			err = -EAGAIN;
+		err = assign_substream(rmidi, subdevice,
+				       SNDRV_RAWMIDI_STREAM_INPUT,
+				       mode, &sinput);
+		if (err < 0)
 			goto __error;
-		}
 	}
 	if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
-		if (!(rmidi->info_flags & SNDRV_RAWMIDI_INFO_OUTPUT)) {
-			err = -ENXIO;
-			goto __error;
-		}
-		if (subdevice >= 0 && (unsigned int)subdevice >= rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_count) {
-			err = -ENODEV;
-			goto __error;
-		}
-		if (rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_opened >=
-		    rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_count) {
-			err = -EAGAIN;
+		err = assign_substream(rmidi, subdevice,
+				       SNDRV_RAWMIDI_STREAM_OUTPUT,
+				       mode, &soutput);
+		if (err < 0)
 			goto __error;
-		}
-	}
-	list1 = rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams.next;
-	while (1) {
-		if (list1 == &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
-			sinput = NULL;
-			if (mode & SNDRV_RAWMIDI_LFLG_INPUT) {
-				err = -EAGAIN;
-				goto __error;
-			}
-			break;
-		}
-		sinput = list_entry(list1, struct snd_rawmidi_substream, list);
-		if ((mode & SNDRV_RAWMIDI_LFLG_INPUT) && sinput->opened)
-			goto __nexti;
-		if (subdevice < 0 || (subdevice >= 0 && subdevice == sinput->number))
-			break;
-	      __nexti:
-		list1 = list1->next;
-	}
-	list2 = rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams.next;
-	while (1) {
-		if (list2 == &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
-			soutput = NULL;
-			if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
-				err = -EAGAIN;
-				goto __error;
-			}
-			break;
-		}
-		soutput = list_entry(list2, struct snd_rawmidi_substream, list);
-		if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
-			if (mode & SNDRV_RAWMIDI_LFLG_APPEND) {
-				if (soutput->opened && !soutput->append)
-					goto __nexto;
-			} else {
-				if (soutput->opened)
-					goto __nexto;
-			}
-		}
-		if (subdevice < 0 || (subdevice >= 0 && subdevice == soutput->number))
-			break;
-	      __nexto:
-		list2 = list2->next;
 	}
-	if (mode & SNDRV_RAWMIDI_LFLG_INPUT) {
-		if ((err = snd_rawmidi_runtime_create(sinput)) < 0)
-			goto __error;
-		input = sinput->runtime;
-		if ((err = sinput->ops->open(sinput)) < 0)
+
+	if (sinput) {
+		err = open_substream(rmidi, sinput, mode);
+		if (err < 0)
 			goto __error;
-		sinput->opened = 1;
-		rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_opened++;
-	} else {
-		sinput = NULL;
 	}
-	if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
-		if (soutput->opened)
-			goto __skip_output;
-		if ((err = snd_rawmidi_runtime_create(soutput)) < 0) {
-			if (mode & SNDRV_RAWMIDI_LFLG_INPUT)
-				sinput->ops->close(sinput);
-			goto __error;
-		}
-		output = soutput->runtime;
-		if ((err = soutput->ops->open(soutput)) < 0) {
-			if (mode & SNDRV_RAWMIDI_LFLG_INPUT)
-				sinput->ops->close(sinput);
+	if (soutput) {
+		err = open_substream(rmidi, soutput, mode);
+		if (err < 0) {
+			if (sinput)
+				close_substream(rmidi, sinput, 0);
 			goto __error;
 		}
-	      __skip_output:
-		soutput->opened = 1;
-		if (mode & SNDRV_RAWMIDI_LFLG_APPEND)
-			soutput->append = 1;
-	      	if (soutput->use_count++ == 0)
-			soutput->active_sensing = 1;
-		rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_opened++;
-	} else {
-		soutput = NULL;
-	}
-	if (!(mode & SNDRV_RAWMIDI_LFLG_NOOPENLOCK))
-		mutex_unlock(&rmidi->open_mutex);
-	if (rfile) {
-		rfile->rmidi = rmidi;
-		rfile->input = sinput;
-		rfile->output = soutput;
 	}
+
+	rfile->rmidi = rmidi;
+	rfile->input = sinput;
+	rfile->output = soutput;
 	return 0;
 
       __error:
-	if (input != NULL)
+	if (sinput && sinput->runtime)
 		snd_rawmidi_runtime_free(sinput);
-	if (output != NULL)
+	if (soutput && soutput->runtime)
 		snd_rawmidi_runtime_free(soutput);
-	if (!(mode & SNDRV_RAWMIDI_LFLG_NOOPENLOCK))
-		mutex_unlock(&rmidi->open_mutex);
-	module_put(rmidi->card->module);
+	return err;
+}
+
+/* called from sound/core/seq/seq_midi.c */
+int snd_rawmidi_kernel_open(struct snd_card *card, int device, int subdevice,
+			    int mode, struct snd_rawmidi_file * rfile)
+{
+	struct snd_rawmidi *rmidi;
+	int err;
+
+	if (snd_BUG_ON(!rfile))
+		return -EINVAL;
+
+	mutex_lock(&register_mutex);
+	rmidi = snd_rawmidi_search(card, device);
+	if (rmidi == NULL) {
+		mutex_unlock(&register_mutex);
+		return -ENODEV;
+	}
+	if (!try_module_get(rmidi->card->module)) {
+		mutex_unlock(&register_mutex);
+		return -ENXIO;
+	}
+	mutex_unlock(&register_mutex);
+
+	mutex_lock(&rmidi->open_mutex);
+	err = rawmidi_open_priv(rmidi, subdevice, mode, rfile);
+	mutex_unlock(&rmidi->open_mutex);
+	if (err < 0)
+		module_put(rmidi->card->module);
 	return err;
 }
 
@@ -385,10 +372,13 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
 	unsigned short fflags;
 	int err;
 	struct snd_rawmidi *rmidi;
-	struct snd_rawmidi_file *rawmidi_file;
+	struct snd_rawmidi_file *rawmidi_file = NULL;
 	wait_queue_t wait;
 	struct snd_ctl_file *kctl;
 
+	if ((file->f_flags & O_APPEND) && !(file->f_flags & O_NONBLOCK)) 
+		return -EINVAL;		/* invalid combination */
+
 	if (maj == snd_major) {
 		rmidi = snd_lookup_minor_data(iminor(inode),
 					      SNDRV_DEVICE_TYPE_RAWMIDI);
@@ -402,24 +392,25 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
 
 	if (rmidi == NULL)
 		return -ENODEV;
-	if ((file->f_flags & O_APPEND) && !(file->f_flags & O_NONBLOCK)) 
-		return -EINVAL;		/* invalid combination */
+
+	if (!try_module_get(rmidi->card->module))
+		return -ENXIO;
+
+	mutex_lock(&rmidi->open_mutex);
 	card = rmidi->card;
 	err = snd_card_file_add(card, file);
 	if (err < 0)
-		return -ENODEV;
+		goto __error_card;
 	fflags = snd_rawmidi_file_flags(file);
 	if ((file->f_flags & O_APPEND) || maj == SOUND_MAJOR) /* OSS emul? */
 		fflags |= SNDRV_RAWMIDI_LFLG_APPEND;
-	fflags |= SNDRV_RAWMIDI_LFLG_NOOPENLOCK;
 	rawmidi_file = kmalloc(sizeof(*rawmidi_file), GFP_KERNEL);
 	if (rawmidi_file == NULL) {
-		snd_card_file_remove(card, file);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto __error;
 	}
 	init_waitqueue_entry(&wait, current);
 	add_wait_queue(&rmidi->open_wait, &wait);
-	mutex_lock(&rmidi->open_mutex);
 	while (1) {
 		subdevice = -1;
 		read_lock(&card->ctl_files_rwlock);
@@ -431,8 +422,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
 			}
 		}
 		read_unlock(&card->ctl_files_rwlock);
-		err = snd_rawmidi_kernel_open(rmidi->card, rmidi->device,
-					      subdevice, fflags, rawmidi_file);
+		err = rawmidi_open_priv(rmidi, subdevice, fflags, rawmidi_file);
 		if (err >= 0)
 			break;
 		if (err == -EAGAIN) {
@@ -451,67 +441,89 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
 			break;
 		}
 	}
+	remove_wait_queue(&rmidi->open_wait, &wait);
+	if (err < 0) {
+		kfree(rawmidi_file);
+		goto __error;
+	}
 #ifdef CONFIG_SND_OSSEMUL
 	if (rawmidi_file->input && rawmidi_file->input->runtime)
 		rawmidi_file->input->runtime->oss = (maj == SOUND_MAJOR);
 	if (rawmidi_file->output && rawmidi_file->output->runtime)
 		rawmidi_file->output->runtime->oss = (maj == SOUND_MAJOR);
 #endif
-	remove_wait_queue(&rmidi->open_wait, &wait);
-	if (err >= 0) {
-		file->private_data = rawmidi_file;
-	} else {
-		snd_card_file_remove(card, file);
-		kfree(rawmidi_file);
-	}
+	file->private_data = rawmidi_file;
 	mutex_unlock(&rmidi->open_mutex);
+	return 0;
+
+ __error:
+	snd_card_file_remove(card, file);
+ __error_card:
+	mutex_unlock(&rmidi->open_mutex);
+	module_put(rmidi->card->module);
 	return err;
 }
 
-int snd_rawmidi_kernel_release(struct snd_rawmidi_file * rfile)
+static void close_substream(struct snd_rawmidi *rmidi,
+			    struct snd_rawmidi_substream *substream,
+			    int cleanup)
 {
-	struct snd_rawmidi *rmidi;
-	struct snd_rawmidi_substream *substream;
-	struct snd_rawmidi_runtime *runtime;
+	rmidi->streams[substream->stream].substream_opened--;
+	if (--substream->use_count)
+		return;
 
-	if (snd_BUG_ON(!rfile))
-		return -ENXIO;
-	rmidi = rfile->rmidi;
-	mutex_lock(&rmidi->open_mutex);
-	if (rfile->input != NULL) {
-		substream = rfile->input;
-		rfile->input = NULL;
-		runtime = substream->runtime;
-		snd_rawmidi_input_trigger(substream, 0);
-		substream->ops->close(substream);
-		if (runtime->private_free != NULL)
-			runtime->private_free(substream);
-		snd_rawmidi_runtime_free(substream);
-		substream->opened = 0;
-		rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substream_opened--;
-	}
-	if (rfile->output != NULL) {
-		substream = rfile->output;
-		rfile->output = NULL;
-		if (--substream->use_count == 0) {
-			runtime = substream->runtime;
+	if (cleanup) {
+		if (substream->stream == SNDRV_RAWMIDI_STREAM_INPUT)
+			snd_rawmidi_input_trigger(substream, 0);
+		else {
 			if (substream->active_sensing) {
 				unsigned char buf = 0xfe;
-				/* sending single active sensing message to shut the device up */
+				/* sending single active sensing message
+				 * to shut the device up
+				 */
 				snd_rawmidi_kernel_write(substream, &buf, 1);
 			}
 			if (snd_rawmidi_drain_output(substream) == -ERESTARTSYS)
 				snd_rawmidi_output_trigger(substream, 0);
-			substream->ops->close(substream);
-			if (runtime->private_free != NULL)
-				runtime->private_free(substream);
-			snd_rawmidi_runtime_free(substream);
-			substream->opened = 0;
-			substream->append = 0;
 		}
-		rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substream_opened--;
 	}
+	substream->ops->close(substream);
+	if (substream->runtime->private_free)
+		substream->runtime->private_free(substream);
+	snd_rawmidi_runtime_free(substream);
+	substream->opened = 0;
+	substream->append = 0;
+}
+
+static void rawmidi_release_priv(struct snd_rawmidi_file *rfile)
+{
+	struct snd_rawmidi *rmidi;
+
+	rmidi = rfile->rmidi;
+	mutex_lock(&rmidi->open_mutex);
+	if (rfile->input) {
+		close_substream(rmidi, rfile->input, 1);
+		rfile->input = NULL;
+	}
+	if (rfile->output) {
+		close_substream(rmidi, rfile->output, 1);
+		rfile->output = NULL;
+	}
+	rfile->rmidi = NULL;
 	mutex_unlock(&rmidi->open_mutex);
+	wake_up(&rmidi->open_wait);
+}
+
+/* called from sound/core/seq/seq_midi.c */
+int snd_rawmidi_kernel_release(struct snd_rawmidi_file *rfile)
+{
+	struct snd_rawmidi *rmidi;
+
+	if (snd_BUG_ON(!rfile))
+		return -ENXIO;
+	
+	rmidi = rfile->rmidi;
+	rawmidi_release_priv(rfile);
 	module_put(rmidi->card->module);
 	return 0;
 }
@@ -520,15 +532,14 @@ static int snd_rawmidi_release(struct inode *inode, struct file *file)
 {
 	struct snd_rawmidi_file *rfile;
 	struct snd_rawmidi *rmidi;
-	int err;
 
 	rfile = file->private_data;
-	err = snd_rawmidi_kernel_release(rfile);
 	rmidi = rfile->rmidi;
-	wake_up(&rmidi->open_wait);
+	rawmidi_release_priv(rfile);
 	kfree(rfile);
 	snd_card_file_remove(rmidi->card, file);
-	return err;
+	module_put(rmidi->card->module);
+	return 0;
 }
 
 static int snd_rawmidi_info(struct snd_rawmidi_substream *substream,
-- 
cgit v1.2.3


From 6074d5b0a319fe8400ff079a3c289406ca024321 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 10 Mar 2009 16:27:48 +0900
Subject: percpu: more flexibility for @dyn_size of pcpu_setup_first_chunk()

Impact: cleanup, more flexibility for first chunk init

Non-negative @dyn_size used to be allowed iff @unit_size wasn't auto.
This restriction stemmed from implementation detail and made things a
bit less intuitive.  This patch allows @dyn_size to be specified
regardless of @unit_size and swaps the positions of @dyn_size and
@unit_size so that the parameter order makes more sense (static,
reserved and dyn sizes followed by enclosing unit_size).

While at it, add @unit_size >= PCPU_MIN_UNIT_SIZE sanity check.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/kernel/setup_percpu.c | 13 ++++++-------
 include/linux/percpu.h         |  2 +-
 mm/percpu.c                    | 28 ++++++++++++++--------------
 3 files changed, 21 insertions(+), 22 deletions(-)

(limited to 'include')

diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index efa615f2bf43..e41c51f6ada1 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -233,8 +233,8 @@ proceed:
 		"%zu bytes\n", vm.addr, static_size);
 
 	ret = pcpu_setup_first_chunk(pcpur_get_page, static_size,
-				     PERCPU_FIRST_CHUNK_RESERVE,
-				     PMD_SIZE, dyn_size, vm.addr, NULL);
+				     PERCPU_FIRST_CHUNK_RESERVE, dyn_size,
+				     PMD_SIZE, vm.addr, NULL);
 	goto out_free_ar;
 
 enomem:
@@ -315,9 +315,8 @@ static ssize_t __init setup_pcpu_embed(size_t static_size)
 		pcpue_size >> PAGE_SHIFT, pcpue_ptr, static_size);
 
 	return pcpu_setup_first_chunk(pcpue_get_page, static_size,
-				      PERCPU_FIRST_CHUNK_RESERVE,
-				      pcpue_unit_size, dyn_size,
-				      pcpue_ptr, NULL);
+				      PERCPU_FIRST_CHUNK_RESERVE, dyn_size,
+				      pcpue_unit_size, pcpue_ptr, NULL);
 }
 
 /*
@@ -375,8 +374,8 @@ static ssize_t __init setup_pcpu_4k(size_t static_size)
 		pcpu4k_nr_static_pages, static_size);
 
 	ret = pcpu_setup_first_chunk(pcpu4k_get_page, static_size,
-				     PERCPU_FIRST_CHUNK_RESERVE, -1, -1, NULL,
-				     pcpu4k_populate_pte);
+				     PERCPU_FIRST_CHUNK_RESERVE, -1,
+				     -1, NULL, pcpu4k_populate_pte);
 	goto out_free_ar;
 
 enomem:
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 54a968b4b924..fb455dcc59c7 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -107,7 +107,7 @@ typedef void (*pcpu_populate_pte_fn_t)(unsigned long addr);
 
 extern size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn,
 				size_t static_size, size_t reserved_size,
-				ssize_t unit_size, ssize_t dyn_size,
+				ssize_t dyn_size, ssize_t unit_size,
 				void *base_addr,
 				pcpu_populate_pte_fn_t populate_pte_fn);
 
diff --git a/mm/percpu.c b/mm/percpu.c
index c6f38a2aface..2f94661d3e36 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1027,8 +1027,8 @@ EXPORT_SYMBOL_GPL(free_percpu);
  * @get_page_fn: callback to fetch page pointer
  * @static_size: the size of static percpu area in bytes
  * @reserved_size: the size of reserved percpu area in bytes
- * @unit_size: unit size in bytes, must be multiple of PAGE_SIZE, -1 for auto
  * @dyn_size: free size for dynamic allocation in bytes, -1 for auto
+ * @unit_size: unit size in bytes, must be multiple of PAGE_SIZE, -1 for auto
  * @base_addr: mapped address, NULL for auto
  * @populate_pte_fn: callback to allocate pagetable, NULL if unnecessary
  *
@@ -1053,14 +1053,14 @@ EXPORT_SYMBOL_GPL(free_percpu);
  * limited offset range for symbol relocations to guarantee module
  * percpu symbols fall inside the relocatable range.
  *
+ * @dyn_size, if non-negative, determines the number of bytes
+ * available for dynamic allocation in the first chunk.  Specifying
+ * non-negative value makes percpu leave alone the area beyond
+ * @static_size + @reserved_size + @dyn_size.
+ *
  * @unit_size, if non-negative, specifies unit size and must be
  * aligned to PAGE_SIZE and equal to or larger than @static_size +
- * @reserved_size + @dyn_size.
- *
- * @dyn_size, if non-negative, limits the number of bytes available
- * for dynamic allocation in the first chunk.  Specifying non-negative
- * value make percpu leave alone the area beyond @static_size +
- * @reserved_size + @dyn_size.
+ * @reserved_size + if non-negative, @dyn_size.
  *
  * Non-null @base_addr means that the caller already allocated virtual
  * region for the first chunk and mapped it.  percpu must not mess
@@ -1083,12 +1083,14 @@ EXPORT_SYMBOL_GPL(free_percpu);
  */
 size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn,
 				     size_t static_size, size_t reserved_size,
-				     ssize_t unit_size, ssize_t dyn_size,
+				     ssize_t dyn_size, ssize_t unit_size,
 				     void *base_addr,
 				     pcpu_populate_pte_fn_t populate_pte_fn)
 {
 	static struct vm_struct first_vm;
 	static int smap[2], dmap[2];
+	size_t size_sum = static_size + reserved_size +
+			  (dyn_size >= 0 ? dyn_size : 0);
 	struct pcpu_chunk *schunk, *dchunk = NULL;
 	unsigned int cpu;
 	int nr_pages;
@@ -1099,20 +1101,18 @@ size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn,
 		     ARRAY_SIZE(dmap) >= PCPU_DFL_MAP_ALLOC);
 	BUG_ON(!static_size);
 	if (unit_size >= 0) {
-		BUG_ON(unit_size < static_size + reserved_size +
-				   (dyn_size >= 0 ? dyn_size : 0));
+		BUG_ON(unit_size < size_sum);
 		BUG_ON(unit_size & ~PAGE_MASK);
-	} else {
-		BUG_ON(dyn_size >= 0);
+		BUG_ON(unit_size < PCPU_MIN_UNIT_SIZE);
+	} else
 		BUG_ON(base_addr);
-	}
 	BUG_ON(base_addr && populate_pte_fn);
 
 	if (unit_size >= 0)
 		pcpu_unit_pages = unit_size >> PAGE_SHIFT;
 	else
 		pcpu_unit_pages = max_t(int, PCPU_MIN_UNIT_SIZE >> PAGE_SHIFT,
-					PFN_UP(static_size + reserved_size));
+					PFN_UP(size_sum));
 
 	pcpu_unit_size = pcpu_unit_pages << PAGE_SHIFT;
 	pcpu_chunk_size = num_possible_cpus() * pcpu_unit_size;
-- 
cgit v1.2.3


From 66c3a75772247c31feabefb724e082220a1ab060 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 10 Mar 2009 16:27:48 +0900
Subject: percpu: generalize embedding first chunk setup helper

Impact: code reorganization

Separate out embedding first chunk setup helper from x86 embedding
first chunk allocator and put it in mm/percpu.c.  This will be used by
the default percpu first chunk allocator and possibly by other archs.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/kernel/setup_percpu.c | 54 +++-----------------------
 include/linux/percpu.h         |  4 ++
 mm/percpu.c                    | 86 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+), 48 deletions(-)

(limited to 'include')

diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index e41c51f6ada1..400331b50a53 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -257,31 +257,13 @@ static ssize_t __init setup_pcpu_remap(size_t static_size)
  * Embedding allocator
  *
  * The first chunk is sized to just contain the static area plus
- * module and dynamic reserves, and allocated as a contiguous area
- * using bootmem allocator and used as-is without being mapped into
- * vmalloc area.  This enables the first chunk to piggy back on the
- * linear physical PMD mapping and doesn't add any additional pressure
- * to TLB.  Note that if the needed size is smaller than the minimum
- * unit size, the leftover is returned to the bootmem allocator.
+ * module and dynamic reserves and embedded into linear physical
+ * mapping so that it can use PMD mapping without additional TLB
+ * pressure.
  */
-static void *pcpue_ptr __initdata;
-static size_t pcpue_size __initdata;
-static size_t pcpue_unit_size __initdata;
-
-static struct page * __init pcpue_get_page(unsigned int cpu, int pageno)
-{
-	size_t off = (size_t)pageno << PAGE_SHIFT;
-
-	if (off >= pcpue_size)
-		return NULL;
-
-	return virt_to_page(pcpue_ptr + cpu * pcpue_unit_size + off);
-}
-
 static ssize_t __init setup_pcpu_embed(size_t static_size)
 {
-	unsigned int cpu;
-	size_t dyn_size;
+	size_t reserve = PERCPU_MODULE_RESERVE + PERCPU_DYNAMIC_RESERVE;
 
 	/*
 	 * If large page isn't supported, there's no benefit in doing
@@ -291,32 +273,8 @@ static ssize_t __init setup_pcpu_embed(size_t static_size)
 	if (!cpu_has_pse || pcpu_need_numa())
 		return -EINVAL;
 
-	/* allocate and copy */
-	pcpue_size = PFN_ALIGN(static_size + PERCPU_MODULE_RESERVE +
-			       PERCPU_DYNAMIC_RESERVE);
-	pcpue_unit_size = max_t(size_t, pcpue_size, PCPU_MIN_UNIT_SIZE);
-	dyn_size = pcpue_size - static_size - PERCPU_FIRST_CHUNK_RESERVE;
-
-	pcpue_ptr = pcpu_alloc_bootmem(0, num_possible_cpus() * pcpue_unit_size,
-				       PAGE_SIZE);
-	if (!pcpue_ptr)
-		return -ENOMEM;
-
-	for_each_possible_cpu(cpu) {
-		void *ptr = pcpue_ptr + cpu * pcpue_unit_size;
-
-		free_bootmem(__pa(ptr + pcpue_size),
-			     pcpue_unit_size - pcpue_size);
-		memcpy(ptr, __per_cpu_load, static_size);
-	}
-
-	/* we're ready, commit */
-	pr_info("PERCPU: Embedded %zu pages at %p, static data %zu bytes\n",
-		pcpue_size >> PAGE_SHIFT, pcpue_ptr, static_size);
-
-	return pcpu_setup_first_chunk(pcpue_get_page, static_size,
-				      PERCPU_FIRST_CHUNK_RESERVE, dyn_size,
-				      pcpue_unit_size, pcpue_ptr, NULL);
+	return pcpu_embed_first_chunk(static_size, PERCPU_FIRST_CHUNK_RESERVE,
+				      reserve - PERCPU_FIRST_CHUNK_RESERVE, -1);
 }
 
 /*
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index fb455dcc59c7..ee5615d65211 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -111,6 +111,10 @@ extern size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn,
 				void *base_addr,
 				pcpu_populate_pte_fn_t populate_pte_fn);
 
+extern ssize_t __init pcpu_embed_first_chunk(
+				size_t static_size, size_t reserved_size,
+				ssize_t dyn_size, ssize_t unit_size);
+
 /*
  * Use this to get to a cpu's version of the per-cpu object
  * dynamically allocated. Non-atomic access to the current CPU's
diff --git a/mm/percpu.c b/mm/percpu.c
index 2f94661d3e36..1aa5d8fbca12 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1238,3 +1238,89 @@ size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn,
 	pcpu_base_addr = (void *)pcpu_chunk_addr(schunk, 0, 0);
 	return pcpu_unit_size;
 }
+
+/*
+ * Embedding first chunk setup helper.
+ */
+static void *pcpue_ptr __initdata;
+static size_t pcpue_size __initdata;
+static size_t pcpue_unit_size __initdata;
+
+static struct page * __init pcpue_get_page(unsigned int cpu, int pageno)
+{
+	size_t off = (size_t)pageno << PAGE_SHIFT;
+
+	if (off >= pcpue_size)
+		return NULL;
+
+	return virt_to_page(pcpue_ptr + cpu * pcpue_unit_size + off);
+}
+
+/**
+ * pcpu_embed_first_chunk - embed the first percpu chunk into bootmem
+ * @static_size: the size of static percpu area in bytes
+ * @reserved_size: the size of reserved percpu area in bytes
+ * @dyn_size: free size for dynamic allocation in bytes, -1 for auto
+ * @unit_size: unit size in bytes, must be multiple of PAGE_SIZE, -1 for auto
+ *
+ * This is a helper to ease setting up embedded first percpu chunk and
+ * can be called where pcpu_setup_first_chunk() is expected.
+ *
+ * If this function is used to setup the first chunk, it is allocated
+ * as a contiguous area using bootmem allocator and used as-is without
+ * being mapped into vmalloc area.  This enables the first chunk to
+ * piggy back on the linear physical mapping which often uses larger
+ * page size.
+ *
+ * When @dyn_size is positive, dynamic area might be larger than
+ * specified to fill page alignment.  Also, when @dyn_size is auto,
+ * @dyn_size does not fill the whole first chunk but only what's
+ * necessary for page alignment after static and reserved areas.
+ *
+ * If the needed size is smaller than the minimum or specified unit
+ * size, the leftover is returned to the bootmem allocator.
+ *
+ * RETURNS:
+ * The determined pcpu_unit_size which can be used to initialize
+ * percpu access on success, -errno on failure.
+ */
+ssize_t __init pcpu_embed_first_chunk(size_t static_size, size_t reserved_size,
+				      ssize_t dyn_size, ssize_t unit_size)
+{
+	unsigned int cpu;
+
+	/* determine parameters and allocate */
+	pcpue_size = PFN_ALIGN(static_size + reserved_size +
+			       (dyn_size >= 0 ? dyn_size : 0));
+	if (dyn_size != 0)
+		dyn_size = pcpue_size - static_size - reserved_size;
+
+	if (unit_size >= 0) {
+		BUG_ON(unit_size < pcpue_size);
+		pcpue_unit_size = unit_size;
+	} else
+		pcpue_unit_size = max_t(size_t, pcpue_size, PCPU_MIN_UNIT_SIZE);
+
+	pcpue_ptr = __alloc_bootmem_nopanic(
+					num_possible_cpus() * pcpue_unit_size,
+					PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
+	if (!pcpue_ptr)
+		return -ENOMEM;
+
+	/* return the leftover and copy */
+	for_each_possible_cpu(cpu) {
+		void *ptr = pcpue_ptr + cpu * pcpue_unit_size;
+
+		free_bootmem(__pa(ptr + pcpue_size),
+			     pcpue_unit_size - pcpue_size);
+		memcpy(ptr, __per_cpu_load, static_size);
+	}
+
+	/* we're ready, commit */
+	pr_info("PERCPU: Embedded %zu pages at %p, static data %zu bytes\n",
+		pcpue_size >> PAGE_SHIFT, pcpue_ptr, static_size);
+
+	return pcpu_setup_first_chunk(pcpue_get_page, static_size,
+				      reserved_size, dyn_size,
+				      pcpue_unit_size, pcpue_ptr, NULL);
+}
-- 
cgit v1.2.3


From 34f42a070fc98f5dc07e9fa2338b7b8d1dc347eb Mon Sep 17 00:00:00 2001
From: Robert Love <robert.w.love@intel.com>
Date: Fri, 27 Feb 2009 10:55:45 -0800
Subject: [SCSI] libfc, fcoe: Fix kerneldoc comments

1) Added '()' for function names in kerneldoc comments

2) Changed comment bookends from '**/' to '*/'. The comment on the the
   mailing list was that '**/' "is consistently unconventional.  Not
   wrong, just odd." The Documentation/kernel-doc-nano-HOWTO.txt
   states that kerneldoc comment blocks should end with '**/' but most
   (if not all) instance I found under drivers/scsi/ were only using
   the '*/' so I converted to that style.

3) Removed incorrect linebreaks in kerneldoc comments where found

4) Removed a few unnecessary blank comment lines in kerneldoc comment
   blocks

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/fcoe/fc_transport_fcoe.c |  77 ++++++++--------
 drivers/scsi/fcoe/fcoe_sw.c           |  42 ++++-----
 drivers/scsi/fcoe/libfcoe.c           | 162 +++++++++++++++++-----------------
 drivers/scsi/libfc/fc_disc.c          |  45 +++++-----
 drivers/scsi/libfc/fc_fcp.c           |  46 +++++-----
 drivers/scsi/libfc/fc_lport.c         |  77 ++++++++--------
 drivers/scsi/libfc/fc_rport.c         |  46 +++++-----
 include/scsi/libfc.h                  |  14 +--
 8 files changed, 252 insertions(+), 257 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/fcoe/fc_transport_fcoe.c b/drivers/scsi/fcoe/fc_transport_fcoe.c
index bf7fe6fc0820..0eea4c434c31 100644
--- a/drivers/scsi/fcoe/fc_transport_fcoe.c
+++ b/drivers/scsi/fcoe/fc_transport_fcoe.c
@@ -33,19 +33,19 @@ static LIST_HEAD(fcoe_transports);
 static DEFINE_MUTEX(fcoe_transports_lock);
 
 /**
- * fcoe_transport_default - returns ptr to the default transport fcoe_sw
- **/
+ * fcoe_transport_default() - Returns ptr to the default transport fcoe_sw
+ */
 struct fcoe_transport *fcoe_transport_default(void)
 {
 	return &fcoe_sw_transport;
 }
 
 /**
- * fcoe_transport_to_pcidev - get the pci dev from a netdev
+ * fcoe_transport_to_pcidev() - get the pci dev from a netdev
  * @netdev: the netdev that pci dev will be retrived from
  *
  * Returns: NULL or the corrsponding pci_dev
- **/
+ */
 struct pci_dev *fcoe_transport_pcidev(const struct net_device *netdev)
 {
 	if (!netdev->dev.parent)
@@ -54,16 +54,14 @@ struct pci_dev *fcoe_transport_pcidev(const struct net_device *netdev)
 }
 
 /**
- * fcoe_transport_device_lookup - find out netdev is managed by the
- * transport
- * assign a transport to a device
+ * fcoe_transport_device_lookup() - Lookup a transport
  * @netdev: the netdev the transport to be attached to
  *
  * This will look for existing offload driver, if not found, it falls back to
  * the default sw hba (fcoe_sw) as its fcoe transport.
  *
  * Returns: 0 for success
- **/
+ */
 static struct fcoe_transport_internal *fcoe_transport_device_lookup(
 	struct fcoe_transport *t, struct net_device *netdev)
 {
@@ -81,14 +79,14 @@ static struct fcoe_transport_internal *fcoe_transport_device_lookup(
 	return NULL;
 }
 /**
- * fcoe_transport_device_add - assign a transport to a device
+ * fcoe_transport_device_add() - Assign a transport to a device
  * @netdev: the netdev the transport to be attached to
  *
  * This will look for existing offload driver, if not found, it falls back to
  * the default sw hba (fcoe_sw) as its fcoe transport.
  *
  * Returns: 0 for success
- **/
+ */
 static int fcoe_transport_device_add(struct fcoe_transport *t,
 				     struct net_device *netdev)
 {
@@ -123,14 +121,14 @@ static int fcoe_transport_device_add(struct fcoe_transport *t,
 }
 
 /**
- * fcoe_transport_device_remove - remove a device from its transport
+ * fcoe_transport_device_remove() - Remove a device from its transport
  * @netdev: the netdev the transport to be attached to
  *
- * this removes the device from the transport so the given transport will
+ * This removes the device from the transport so the given transport will
  * not manage this device any more
  *
  * Returns: 0 for success
- **/
+ */
 static int fcoe_transport_device_remove(struct fcoe_transport *t,
 					struct net_device *netdev)
 {
@@ -155,13 +153,13 @@ static int fcoe_transport_device_remove(struct fcoe_transport *t,
 }
 
 /**
- * fcoe_transport_device_remove_all - remove all from transport devlist
+ * fcoe_transport_device_remove_all() - Remove all from transport devlist
  *
- * this removes the device from the transport so the given transport will
+ * This removes the device from the transport so the given transport will
  * not manage this device any more
  *
  * Returns: 0 for success
- **/
+ */
 static void fcoe_transport_device_remove_all(struct fcoe_transport *t)
 {
 	struct fcoe_transport_internal *ti, *tmp;
@@ -175,16 +173,16 @@ static void fcoe_transport_device_remove_all(struct fcoe_transport *t)
 }
 
 /**
- * fcoe_transport_match - use the bus device match function to match the hw
- * @t: the fcoe transport
- * @netdev:
+ * fcoe_transport_match() - Use the bus device match function to match the hw
+ * @t: The fcoe transport to check
+ * @netdev: The netdev to match against
  *
- * This function is used to check if the givne transport wants to manage the
+ * This function is used to check if the given transport wants to manage the
  * input netdev. if the transports implements the match function, it will be
  * called, o.w. we just compare the pci vendor and device id.
  *
  * Returns: true for match up
- **/
+ */
 static bool fcoe_transport_match(struct fcoe_transport *t,
 				struct net_device *netdev)
 {
@@ -210,15 +208,15 @@ static bool fcoe_transport_match(struct fcoe_transport *t,
 }
 
 /**
- * fcoe_transport_lookup - check if the transport is already registered
+ * fcoe_transport_lookup() - Check if the transport is already registered
  * @t: the transport to be looked up
  *
  * This compares the parent device (pci) vendor and device id
  *
  * Returns: NULL if not found
  *
- * TODO - return default sw transport if no other transport is found
- **/
+ * TODO: return default sw transport if no other transport is found
+ */
 static struct fcoe_transport *fcoe_transport_lookup(
 	struct net_device *netdev)
 {
@@ -239,11 +237,11 @@ static struct fcoe_transport *fcoe_transport_lookup(
 }
 
 /**
- * fcoe_transport_register - adds a fcoe transport to the fcoe transports list
+ * fcoe_transport_register() - Adds a fcoe transport to the fcoe transports list
  * @t: ptr to the fcoe transport to be added
  *
  * Returns: 0 for success
- **/
+ */
 int fcoe_transport_register(struct fcoe_transport *t)
 {
 	struct fcoe_transport *tt;
@@ -269,11 +267,11 @@ int fcoe_transport_register(struct fcoe_transport *t)
 EXPORT_SYMBOL_GPL(fcoe_transport_register);
 
 /**
- * fcoe_transport_unregister - remove the tranport fro the fcoe transports list
+ * fcoe_transport_unregister() - Remove the tranport fro the fcoe transports list
  * @t: ptr to the fcoe transport to be removed
  *
  * Returns: 0 for success
- **/
+ */
 int fcoe_transport_unregister(struct fcoe_transport *t)
 {
 	struct fcoe_transport *tt, *tmp;
@@ -294,8 +292,8 @@ int fcoe_transport_unregister(struct fcoe_transport *t)
 }
 EXPORT_SYMBOL_GPL(fcoe_transport_unregister);
 
-/*
- * fcoe_load_transport_driver - load an offload driver by alias name
+/**
+ * fcoe_load_transport_driver() - Load an offload driver by alias name
  * @netdev: the target net device
  *
  * Requests for an offload driver module as the fcoe transport, if fails, it
@@ -307,7 +305,7 @@ EXPORT_SYMBOL_GPL(fcoe_transport_unregister);
  * 	3. pure hw fcoe hba may not have netdev
  *
  * Returns: 0 for success
- **/
+ */
 int fcoe_load_transport_driver(struct net_device *netdev)
 {
 	struct pci_dev *pci;
@@ -335,14 +333,14 @@ int fcoe_load_transport_driver(struct net_device *netdev)
 EXPORT_SYMBOL_GPL(fcoe_load_transport_driver);
 
 /**
- * fcoe_transport_attach - load transport to fcoe
+ * fcoe_transport_attach() - Load transport to fcoe
  * @netdev: the netdev the transport to be attached to
  *
  * This will look for existing offload driver, if not found, it falls back to
  * the default sw hba (fcoe_sw) as its fcoe transport.
  *
  * Returns: 0 for success
- **/
+ */
 int fcoe_transport_attach(struct net_device *netdev)
 {
 	struct fcoe_transport *t;
@@ -373,11 +371,11 @@ int fcoe_transport_attach(struct net_device *netdev)
 EXPORT_SYMBOL_GPL(fcoe_transport_attach);
 
 /**
- * fcoe_transport_release - unload transport from fcoe
+ * fcoe_transport_release() - Unload transport from fcoe
  * @netdev: the net device on which fcoe is to be released
  *
  * Returns: 0 for success
- **/
+ */
 int fcoe_transport_release(struct net_device *netdev)
 {
 	struct fcoe_transport *t;
@@ -410,12 +408,12 @@ int fcoe_transport_release(struct net_device *netdev)
 EXPORT_SYMBOL_GPL(fcoe_transport_release);
 
 /**
- * fcoe_transport_init - initializes fcoe transport layer
+ * fcoe_transport_init() - Initializes fcoe transport layer
  *
  * This prepares for the fcoe transport layer
  *
  * Returns: none
- **/
+ */
 int __init fcoe_transport_init(void)
 {
 	INIT_LIST_HEAD(&fcoe_transports);
@@ -424,12 +422,13 @@ int __init fcoe_transport_init(void)
 }
 
 /**
- * fcoe_transport_exit - cleans up the fcoe transport layer
+ * fcoe_transport_exit() - Cleans up the fcoe transport layer
+ *
  * This cleans up the fcoe transport layer. removing any transport on the list,
  * note that the transport destroy func is not called here.
  *
  * Returns: none
- **/
+ */
 int __exit fcoe_transport_exit(void)
 {
 	struct fcoe_transport *t, *tmp;
diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c
index cf83675a0fb9..007d1fbae808 100644
--- a/drivers/scsi/fcoe/fcoe_sw.c
+++ b/drivers/scsi/fcoe/fcoe_sw.c
@@ -104,13 +104,12 @@ static struct scsi_host_template fcoe_sw_shost_template = {
 	.max_sectors = 0xffff,
 };
 
-/*
- * fcoe_sw_lport_config - sets up the fc_lport
+/**
+ * fcoe_sw_lport_config() - sets up the fc_lport
  * @lp: ptr to the fc_lport
  * @shost: ptr to the parent scsi host
  *
  * Returns: 0 for success
- *
  */
 static int fcoe_sw_lport_config(struct fc_lport *lp)
 {
@@ -137,16 +136,14 @@ static int fcoe_sw_lport_config(struct fc_lport *lp)
 	return 0;
 }
 
-/*
- * fcoe_sw_netdev_config - sets up fcoe_softc for lport and network
- * related properties
+/**
+ * fcoe_sw_netdev_config() - Set up netdev for SW FCoE
  * @lp : ptr to the fc_lport
  * @netdev : ptr to the associated netdevice struct
  *
  * Must be called after fcoe_sw_lport_config() as it will use lport mutex
  *
  * Returns : 0 for success
- *
  */
 static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev)
 {
@@ -224,16 +221,15 @@ static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev)
 	return 0;
 }
 
-/*
- * fcoe_sw_shost_config - sets up fc_lport->host
+/**
+ * fcoe_sw_shost_config() - Sets up fc_lport->host
  * @lp : ptr to the fc_lport
  * @shost : ptr to the associated scsi host
  * @dev : device associated to scsi host
  *
- * Must be called after fcoe_sw_lport_config) and fcoe_sw_netdev_config()
+ * Must be called after fcoe_sw_lport_config() and fcoe_sw_netdev_config()
  *
  * Returns : 0 for success
- *
  */
 static int fcoe_sw_shost_config(struct fc_lport *lp, struct Scsi_Host *shost,
 				struct device *dev)
@@ -261,8 +257,8 @@ static int fcoe_sw_shost_config(struct fc_lport *lp, struct Scsi_Host *shost,
 	return 0;
 }
 
-/*
- * fcoe_sw_em_config - allocates em for this lport
+/**
+ * fcoe_sw_em_config() - allocates em for this lport
  * @lp: the port that em is to allocated for
  *
  * Returns : 0 on success
@@ -279,8 +275,8 @@ static inline int fcoe_sw_em_config(struct fc_lport *lp)
 	return 0;
 }
 
-/*
- * fcoe_sw_destroy - FCoE software HBA tear-down function
+/**
+ * fcoe_sw_destroy() - FCoE software HBA tear-down function
  * @netdev: ptr to the associated net_device
  *
  * Returns: 0 if link is OK for use by FCoE.
@@ -353,8 +349,8 @@ static struct libfc_function_template fcoe_sw_libfc_fcn_templ = {
 	.frame_send = fcoe_xmit,
 };
 
-/*
- * fcoe_sw_create - this function creates the fcoe interface
+/**
+ * fcoe_sw_create() - this function creates the fcoe interface
  * @netdev: pointer the associated netdevice
  *
  * Creates fc_lport struct and scsi_host for lport, configures lport
@@ -440,8 +436,8 @@ out_host_put:
 	return rc;
 }
 
-/*
- * fcoe_sw_match - the fcoe sw transport match function
+/**
+ * fcoe_sw_match() - The FCoE SW transport match function
  *
  * Returns : false always
  */
@@ -461,8 +457,8 @@ struct fcoe_transport fcoe_sw_transport = {
 	.device = 0xffff,
 };
 
-/*
- * fcoe_sw_init - registers fcoe_sw_transport
+/**
+ * fcoe_sw_init() - Registers fcoe_sw_transport
  *
  * Returns : 0 on success
  */
@@ -480,8 +476,8 @@ int __init fcoe_sw_init(void)
 	return 0;
 }
 
-/*
- * fcoe_sw_exit - unregisters fcoe_sw_transport
+/**
+ * fcoe_sw_exit() - Unregisters fcoe_sw_transport
  *
  * Returns : 0 on success
  */
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 296071043f55..5e68652985b2 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -91,13 +91,13 @@ static struct notifier_block fcoe_cpu_notifier = {
 };
 
 /**
- * fcoe_create_percpu_data - creates the associated cpu data
+ * fcoe_create_percpu_data() - creates the associated cpu data
  * @cpu: index for the cpu where fcoe cpu data will be created
  *
  * create percpu stats block, from cpu add notifier
  *
  * Returns: none
- **/
+ */
 static void fcoe_create_percpu_data(int cpu)
 {
 	struct fc_lport *lp;
@@ -115,13 +115,13 @@ static void fcoe_create_percpu_data(int cpu)
 }
 
 /**
- * fcoe_destroy_percpu_data - destroys the associated cpu data
+ * fcoe_destroy_percpu_data() - destroys the associated cpu data
  * @cpu: index for the cpu where fcoe cpu data will destroyed
  *
  * destroy percpu stats block called by cpu add/remove notifier
  *
  * Retuns: none
- **/
+ */
 static void fcoe_destroy_percpu_data(int cpu)
 {
 	struct fc_lport *lp;
@@ -137,7 +137,7 @@ static void fcoe_destroy_percpu_data(int cpu)
 }
 
 /**
- * fcoe_cpu_callback - fcoe cpu hotplug event callback
+ * fcoe_cpu_callback() - fcoe cpu hotplug event callback
  * @nfb: callback data block
  * @action: event triggering the callback
  * @hcpu: index for the cpu of this event
@@ -145,7 +145,7 @@ static void fcoe_destroy_percpu_data(int cpu)
  * this creates or destroys per cpu data for fcoe
  *
  * Returns NOTIFY_OK always.
- **/
+ */
 static int fcoe_cpu_callback(struct notifier_block *nfb, unsigned long action,
 			     void *hcpu)
 {
@@ -166,7 +166,7 @@ static int fcoe_cpu_callback(struct notifier_block *nfb, unsigned long action,
 #endif /* CONFIG_HOTPLUG_CPU */
 
 /**
- * fcoe_rcv - this is the fcoe receive function called by NET_RX_SOFTIRQ
+ * fcoe_rcv() - this is the fcoe receive function called by NET_RX_SOFTIRQ
  * @skb: the receive skb
  * @dev: associated net device
  * @ptype: context
@@ -175,7 +175,7 @@ static int fcoe_cpu_callback(struct notifier_block *nfb, unsigned long action,
  * this function will receive the packet and build fc frame and pass it up
  *
  * Returns: 0 for success
- **/
+ */
 int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
 	     struct packet_type *ptype, struct net_device *olddev)
 {
@@ -265,11 +265,11 @@ err2:
 EXPORT_SYMBOL_GPL(fcoe_rcv);
 
 /**
- * fcoe_start_io - pass to netdev to start xmit for fcoe
+ * fcoe_start_io() - pass to netdev to start xmit for fcoe
  * @skb: the skb to be xmitted
  *
  * Returns: 0 for success
- **/
+ */
 static inline int fcoe_start_io(struct sk_buff *skb)
 {
 	int rc;
@@ -283,12 +283,12 @@ static inline int fcoe_start_io(struct sk_buff *skb)
 }
 
 /**
- * fcoe_get_paged_crc_eof - in case we need alloc a page for crc_eof
+ * fcoe_get_paged_crc_eof() - in case we need alloc a page for crc_eof
  * @skb: the skb to be xmitted
  * @tlen: total len
  *
  * Returns: 0 for success
- **/
+ */
 static int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 {
 	struct fcoe_percpu_s *fps;
@@ -326,13 +326,12 @@ static int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 }
 
 /**
- * fcoe_fc_crc - calculates FC CRC in this fcoe skb
+ * fcoe_fc_crc() - calculates FC CRC in this fcoe skb
  * @fp: the fc_frame containg data to be checksummed
  *
  * This uses crc32() to calculate the crc for fc frame
  * Return   : 32 bit crc
- *
- **/
+ */
 u32 fcoe_fc_crc(struct fc_frame *fp)
 {
 	struct sk_buff *skb = fp_skb(fp);
@@ -363,13 +362,12 @@ u32 fcoe_fc_crc(struct fc_frame *fp)
 EXPORT_SYMBOL_GPL(fcoe_fc_crc);
 
 /**
- * fcoe_xmit - FCoE frame transmit function
+ * fcoe_xmit() - FCoE frame transmit function
  * @lp:	the associated local port
  * @fp: the fc_frame to be transmitted
  *
  * Return   : 0 for success
- *
- **/
+ */
 int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
 {
 	int wlen, rc = 0;
@@ -511,12 +509,11 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
 }
 EXPORT_SYMBOL_GPL(fcoe_xmit);
 
-/*
- * fcoe_percpu_receive_thread - recv thread per cpu
+/**
+ * fcoe_percpu_receive_thread() - recv thread per cpu
  * @arg: ptr to the fcoe per cpu struct
  *
  * Return: 0 for success
- *
  */
 int fcoe_percpu_receive_thread(void *arg)
 {
@@ -658,7 +655,7 @@ int fcoe_percpu_receive_thread(void *arg)
 }
 
 /**
- * fcoe_recv_flogi - flogi receive function
+ * fcoe_recv_flogi() - flogi receive function
  * @fc: associated fcoe_softc
  * @fp: the recieved frame
  * @sa: the source address of this flogi
@@ -667,7 +664,7 @@ int fcoe_percpu_receive_thread(void *arg)
  * mac address for the initiator, eitehr OUI based or GW based.
  *
  * Returns: none
- **/
+ */
 static void fcoe_recv_flogi(struct fcoe_softc *fc, struct fc_frame *fp, u8 *sa)
 {
 	struct fc_frame_header *fh;
@@ -715,7 +712,7 @@ static void fcoe_recv_flogi(struct fcoe_softc *fc, struct fc_frame *fp, u8 *sa)
 }
 
 /**
- * fcoe_watchdog - fcoe timer callback
+ * fcoe_watchdog() - fcoe timer callback
  * @vp:
  *
  * This checks the pending queue length for fcoe and set lport qfull
@@ -723,7 +720,7 @@ static void fcoe_recv_flogi(struct fcoe_softc *fc, struct fc_frame *fp, u8 *sa)
  * fcoe_hostlist.
  *
  * Returns: 0 for success
- **/
+ */
 void fcoe_watchdog(ulong vp)
 {
 	struct fc_lport *lp;
@@ -750,7 +747,7 @@ void fcoe_watchdog(ulong vp)
 
 
 /**
- * fcoe_check_wait_queue - put the skb into fcoe pending xmit queue
+ * fcoe_check_wait_queue() - put the skb into fcoe pending xmit queue
  * @lp: the fc_port for this skb
  * @skb: the associated skb to be xmitted
  *
@@ -764,7 +761,7 @@ void fcoe_watchdog(ulong vp)
  * by the next skb transmit.
  *
  * Returns: 0 for success
- **/
+ */
 static int fcoe_check_wait_queue(struct fc_lport *lp)
 {
 	int rc;
@@ -797,12 +794,12 @@ static int fcoe_check_wait_queue(struct fc_lport *lp)
 }
 
 /**
- * fcoe_insert_wait_queue_head - puts skb to fcoe pending queue head
+ * fcoe_insert_wait_queue_head() - puts skb to fcoe pending queue head
  * @lp: the fc_port for this skb
  * @skb: the associated skb to be xmitted
  *
  * Returns: none
- **/
+ */
 static void fcoe_insert_wait_queue_head(struct fc_lport *lp,
 					struct sk_buff *skb)
 {
@@ -815,12 +812,12 @@ static void fcoe_insert_wait_queue_head(struct fc_lport *lp,
 }
 
 /**
- * fcoe_insert_wait_queue - put the skb into fcoe pending queue tail
+ * fcoe_insert_wait_queue() - put the skb into fcoe pending queue tail
  * @lp: the fc_port for this skb
  * @skb: the associated skb to be xmitted
  *
  * Returns: none
- **/
+ */
 static void fcoe_insert_wait_queue(struct fc_lport *lp,
 				   struct sk_buff *skb)
 {
@@ -833,10 +830,9 @@ static void fcoe_insert_wait_queue(struct fc_lport *lp,
 }
 
 /**
- * fcoe_dev_setup - setup link change notification interface
- *
- **/
-static void fcoe_dev_setup(void)
+ * fcoe_dev_setup() - setup link change notification interface
+ */
+static void fcoe_dev_setup()
 {
 	/*
 	 * here setup a interface specific wd time to
@@ -846,15 +842,15 @@ static void fcoe_dev_setup(void)
 }
 
 /**
- * fcoe_dev_setup - cleanup link change notification interface
- **/
+ * fcoe_dev_setup() - cleanup link change notification interface
+ */
 static void fcoe_dev_cleanup(void)
 {
 	unregister_netdevice_notifier(&fcoe_notifier);
 }
 
 /**
- * fcoe_device_notification - netdev event notification callback
+ * fcoe_device_notification() - netdev event notification callback
  * @notifier: context of the notification
  * @event: type of event
  * @ptr: fixed array for output parsed ifname
@@ -862,7 +858,7 @@ static void fcoe_dev_cleanup(void)
  * This function is called by the ethernet driver in case of link change event
  *
  * Returns: 0 for success
- **/
+ */
 static int fcoe_device_notification(struct notifier_block *notifier,
 				    ulong event, void *ptr)
 {
@@ -926,12 +922,12 @@ out:
 }
 
 /**
- * fcoe_if_to_netdev - parse a name buffer to get netdev
+ * fcoe_if_to_netdev() - parse a name buffer to get netdev
  * @ifname: fixed array for output parsed ifname
  * @buffer: incoming buffer to be copied
  *
  * Returns: NULL or ptr to netdeive
- **/
+ */
 static struct net_device *fcoe_if_to_netdev(const char *buffer)
 {
 	char *cp;
@@ -948,11 +944,11 @@ static struct net_device *fcoe_if_to_netdev(const char *buffer)
 }
 
 /**
- * fcoe_netdev_to_module_owner - finds out the nic drive moddule of the netdev
+ * fcoe_netdev_to_module_owner() - finds out the nic drive moddule of the netdev
  * @netdev: the target netdev
  *
  * Returns: ptr to the struct module, NULL for failure
- **/
+ */
 static struct module *fcoe_netdev_to_module_owner(
 	const struct net_device *netdev)
 {
@@ -972,12 +968,14 @@ static struct module *fcoe_netdev_to_module_owner(
 }
 
 /**
- * fcoe_ethdrv_get - holds the nic driver module by  try_module_get() for
- * the corresponding netdev.
+ * fcoe_ethdrv_get() - Hold the Ethernet driver
  * @netdev: the target netdev
  *
+ * Holds the Ethernet driver module by try_module_get() for
+ * the corresponding netdev.
+ *
  * Returns: 0 for succsss
- **/
+ */
 static int fcoe_ethdrv_get(const struct net_device *netdev)
 {
 	struct module *owner;
@@ -992,12 +990,14 @@ static int fcoe_ethdrv_get(const struct net_device *netdev)
 }
 
 /**
- * fcoe_ethdrv_get - releases the nic driver module by module_put for
- * the corresponding netdev.
+ * fcoe_ethdrv_put() - Release the Ethernet driver
  * @netdev: the target netdev
  *
+ * Releases the Ethernet driver module by module_put for
+ * the corresponding netdev.
+ *
  * Returns: 0 for succsss
- **/
+ */
 static int fcoe_ethdrv_put(const struct net_device *netdev)
 {
 	struct module *owner;
@@ -1013,12 +1013,12 @@ static int fcoe_ethdrv_put(const struct net_device *netdev)
 }
 
 /**
- * fcoe_destroy- handles the destroy from sysfs
+ * fcoe_destroy() - handles the destroy from sysfs
  * @buffer: expcted to be a eth if name
  * @kp: associated kernel param
  *
  * Returns: 0 for success
- **/
+ */
 static int fcoe_destroy(const char *buffer, struct kernel_param *kp)
 {
 	int rc;
@@ -1051,12 +1051,12 @@ out_nodev:
 }
 
 /**
- * fcoe_create - handles the create call from sysfs
+ * fcoe_create() - Handles the create call from sysfs
  * @buffer: expcted to be a eth if name
  * @kp: associated kernel param
  *
  * Returns: 0 for success
- **/
+ */
 static int fcoe_create(const char *buffer, struct kernel_param *kp)
 {
 	int rc;
@@ -1097,8 +1097,8 @@ module_param_call(destroy, fcoe_destroy, NULL, NULL, S_IWUSR);
 __MODULE_PARM_TYPE(destroy, "string");
 MODULE_PARM_DESC(destroy, "Destroy fcoe port");
 
-/*
- * fcoe_link_ok - check if link is ok for the fc_lport
+/**
+ * fcoe_link_ok() - Check if link is ok for the fc_lport
  * @lp: ptr to the fc_lport
  *
  * Any permanently-disqualifying conditions have been previously checked.
@@ -1142,9 +1142,8 @@ int fcoe_link_ok(struct fc_lport *lp)
 }
 EXPORT_SYMBOL_GPL(fcoe_link_ok);
 
-/*
- * fcoe_percpu_clean - frees skb of the corresponding lport from the per
- * cpu queue.
+/**
+ * fcoe_percpu_clean() - Clear the pending skbs for an lport
  * @lp: the fc_lport
  */
 void fcoe_percpu_clean(struct fc_lport *lp)
@@ -1178,11 +1177,11 @@ void fcoe_percpu_clean(struct fc_lport *lp)
 EXPORT_SYMBOL_GPL(fcoe_percpu_clean);
 
 /**
- * fcoe_clean_pending_queue - dequeue skb and free it
+ * fcoe_clean_pending_queue() - Dequeue a skb and free it
  * @lp: the corresponding fc_lport
  *
  * Returns: none
- **/
+ */
 void fcoe_clean_pending_queue(struct fc_lport *lp)
 {
 	struct fcoe_softc  *fc = lport_priv(lp);
@@ -1199,12 +1198,12 @@ void fcoe_clean_pending_queue(struct fc_lport *lp)
 EXPORT_SYMBOL_GPL(fcoe_clean_pending_queue);
 
 /**
- * libfc_host_alloc - allocate a Scsi_Host with room for the fc_lport
+ * libfc_host_alloc() - Allocate a Scsi_Host with room for the fc_lport
  * @sht: ptr to the scsi host templ
  * @priv_size: size of private data after fc_lport
  *
  * Returns: ptr to Scsi_Host
- * TODO - to libfc?
+ * TODO: to libfc?
  */
 static inline struct Scsi_Host *libfc_host_alloc(
 	struct scsi_host_template *sht, int priv_size)
@@ -1213,7 +1212,7 @@ static inline struct Scsi_Host *libfc_host_alloc(
 }
 
 /**
- * fcoe_host_alloc - allocate a Scsi_Host with room for the fcoe_softc
+ * fcoe_host_alloc() - Allocate a Scsi_Host with room for the fcoe_softc
  * @sht: ptr to the scsi host templ
  * @priv_size: size of private data after fc_lport
  *
@@ -1225,8 +1224,8 @@ struct Scsi_Host *fcoe_host_alloc(struct scsi_host_template *sht, int priv_size)
 }
 EXPORT_SYMBOL_GPL(fcoe_host_alloc);
 
-/*
- * fcoe_reset - resets the fcoe
+/**
+ * fcoe_reset() - Resets the fcoe
  * @shost: shost the reset is from
  *
  * Returns: always 0
@@ -1239,8 +1238,8 @@ int fcoe_reset(struct Scsi_Host *shost)
 }
 EXPORT_SYMBOL_GPL(fcoe_reset);
 
-/*
- * fcoe_wwn_from_mac - converts 48-bit IEEE MAC address to 64-bit FC WWN.
+/**
+ * fcoe_wwn_from_mac() - Converts 48-bit IEEE MAC address to 64-bit FC WWN.
  * @mac: mac address
  * @scheme: check port
  * @port: port indicator for converting
@@ -1279,8 +1278,9 @@ u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN],
 	return wwn;
 }
 EXPORT_SYMBOL_GPL(fcoe_wwn_from_mac);
-/*
- * fcoe_hostlist_lookup_softc - find the corresponding lport by a given device
+
+/**
+ * fcoe_hostlist_lookup_softc() - find the corresponding lport by a given device
  * @device: this is currently ptr to net_device
  *
  * Returns: NULL or the located fcoe_softc
@@ -1301,8 +1301,8 @@ static struct fcoe_softc *fcoe_hostlist_lookup_softc(
 	return NULL;
 }
 
-/*
- * fcoe_hostlist_lookup - find the corresponding lport by netdev
+/**
+ * fcoe_hostlist_lookup() - Find the corresponding lport by netdev
  * @netdev: ptr to net_device
  *
  * Returns: 0 for success
@@ -1317,8 +1317,8 @@ struct fc_lport *fcoe_hostlist_lookup(const struct net_device *netdev)
 }
 EXPORT_SYMBOL_GPL(fcoe_hostlist_lookup);
 
-/*
- * fcoe_hostlist_add - add a lport to lports list
+/**
+ * fcoe_hostlist_add() - Add a lport to lports list
  * @lp: ptr to the fc_lport to badded
  *
  * Returns: 0 for success
@@ -1338,8 +1338,8 @@ int fcoe_hostlist_add(const struct fc_lport *lp)
 }
 EXPORT_SYMBOL_GPL(fcoe_hostlist_add);
 
-/*
- * fcoe_hostlist_remove - remove a lport from lports list
+/**
+ * fcoe_hostlist_remove() - remove a lport from lports list
  * @lp: ptr to the fc_lport to badded
  *
  * Returns: 0 for success
@@ -1359,12 +1359,12 @@ int fcoe_hostlist_remove(const struct fc_lport *lp)
 EXPORT_SYMBOL_GPL(fcoe_hostlist_remove);
 
 /**
- * fcoe_libfc_config - sets up libfc related properties for lport
+ * fcoe_libfc_config() - sets up libfc related properties for lport
  * @lp: ptr to the fc_lport
  * @tt: libfc function template
  *
  * Returns : 0 for success
- **/
+ */
 int fcoe_libfc_config(struct fc_lport *lp, struct libfc_function_template *tt)
 {
 	/* Set the function pointers set by the LLDD */
@@ -1382,14 +1382,14 @@ int fcoe_libfc_config(struct fc_lport *lp, struct libfc_function_template *tt)
 EXPORT_SYMBOL_GPL(fcoe_libfc_config);
 
 /**
- * fcoe_init - fcoe module loading initialization
+ * fcoe_init() - fcoe module loading initialization
  *
  * Initialization routine
  * 1. Will create fc transport software structure
  * 2. initialize the link list of port information structure
  *
  * Returns 0 on success, negative on failure
- **/
+ */
 static int __init fcoe_init(void)
 {
 	int cpu;
@@ -1452,10 +1452,10 @@ static int __init fcoe_init(void)
 module_init(fcoe_init);
 
 /**
- * fcoe_exit - fcoe module unloading cleanup
+ * fcoe_exit() - fcoe module unloading cleanup
  *
  * Returns 0 on success, negative on failure
- **/
+ */
 static void __exit fcoe_exit(void)
 {
 	u32 idx;
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c
index cfbce893941a..e57556ea5b48 100644
--- a/drivers/scsi/libfc/fc_disc.c
+++ b/drivers/scsi/libfc/fc_disc.c
@@ -64,7 +64,7 @@ static void fc_disc_single(struct fc_disc *, struct fc_disc_port *);
 static void fc_disc_restart(struct fc_disc *);
 
 /**
- * fc_disc_lookup_rport - lookup a remote port by port_id
+ * fc_disc_lookup_rport() - lookup a remote port by port_id
  * @lport: Fibre Channel host port instance
  * @port_id: remote port port_id to match
  */
@@ -92,7 +92,7 @@ struct fc_rport *fc_disc_lookup_rport(const struct fc_lport *lport,
 }
 
 /**
- * fc_disc_stop_rports - delete all the remote ports associated with the lport
+ * fc_disc_stop_rports() - delete all the remote ports associated with the lport
  * @disc: The discovery job to stop rports on
  *
  * Locking Note: This function expects that the lport mutex is locked before
@@ -117,7 +117,7 @@ void fc_disc_stop_rports(struct fc_disc *disc)
 }
 
 /**
- * fc_disc_rport_callback - Event handler for rport events
+ * fc_disc_rport_callback() - Event handler for rport events
  * @lport: The lport which is receiving the event
  * @rport: The rport which the event has occured on
  * @event: The event that occured
@@ -151,7 +151,7 @@ static void fc_disc_rport_callback(struct fc_lport *lport,
 }
 
 /**
- * fc_disc_recv_rscn_req - Handle Registered State Change Notification (RSCN)
+ * fc_disc_recv_rscn_req() - Handle Registered State Change Notification (RSCN)
  * @sp: Current sequence of the RSCN exchange
  * @fp: RSCN Frame
  * @lport: Fibre Channel host port instance
@@ -265,7 +265,7 @@ reject:
 }
 
 /**
- * fc_disc_recv_req - Handle incoming requests
+ * fc_disc_recv_req() - Handle incoming requests
  * @sp: Current sequence of the request exchange
  * @fp: The frame
  * @lport: The FC local port
@@ -294,7 +294,7 @@ static void fc_disc_recv_req(struct fc_seq *sp, struct fc_frame *fp,
 }
 
 /**
- * fc_disc_restart - Restart discovery
+ * fc_disc_restart() - Restart discovery
  * @lport: FC discovery context
  *
  * Locking Note: This function expects that the disc mutex
@@ -322,7 +322,7 @@ static void fc_disc_restart(struct fc_disc *disc)
 }
 
 /**
- * fc_disc_start - Fibre Channel Target discovery
+ * fc_disc_start() - Fibre Channel Target discovery
  * @lport: FC local port
  *
  * Returns non-zero if discovery cannot be started.
@@ -383,7 +383,7 @@ static struct fc_rport_operations fc_disc_rport_ops = {
 };
 
 /**
- * fc_disc_new_target - Handle new target found by discovery
+ * fc_disc_new_target() - Handle new target found by discovery
  * @lport: FC local port
  * @rport: The previous FC remote port (NULL if new remote port)
  * @ids: Identifiers for the new FC remote port
@@ -446,7 +446,7 @@ static int fc_disc_new_target(struct fc_disc *disc,
 }
 
 /**
- * fc_disc_del_target - Delete a target
+ * fc_disc_del_target() - Delete a target
  * @disc: FC discovery context
  * @rport: The remote port to be removed
  */
@@ -459,7 +459,7 @@ static void fc_disc_del_target(struct fc_disc *disc, struct fc_rport *rport)
 }
 
 /**
- * fc_disc_done - Discovery has been completed
+ * fc_disc_done() - Discovery has been completed
  * @disc: FC discovery context
  */
 static void fc_disc_done(struct fc_disc *disc)
@@ -479,7 +479,7 @@ static void fc_disc_done(struct fc_disc *disc)
 }
 
 /**
- * fc_disc_error - Handle error on dNS request
+ * fc_disc_error() - Handle error on dNS request
  * @disc: FC discovery context
  * @fp: The frame pointer
  */
@@ -519,7 +519,7 @@ static void fc_disc_error(struct fc_disc *disc, struct fc_frame *fp)
 }
 
 /**
- * fc_disc_gpn_ft_req - Send Get Port Names by FC-4 type (GPN_FT) request
+ * fc_disc_gpn_ft_req() - Send Get Port Names by FC-4 type (GPN_FT) request
  * @lport: FC discovery context
  *
  * Locking Note: This function expects that the disc_mutex is locked
@@ -553,7 +553,7 @@ err:
 }
 
 /**
- * fc_disc_gpn_ft_parse - Parse the list of IDs and names resulting from a request
+ * fc_disc_gpn_ft_parse() - Parse the list of IDs and names resulting from a request
  * @lport: Fibre Channel host port instance
  * @buf: GPN_FT response buffer
  * @len: size of response buffer
@@ -658,7 +658,10 @@ static int fc_disc_gpn_ft_parse(struct fc_disc *disc, void *buf, size_t len)
 	return error;
 }
 
-/*
+/**
+ * fc_disc_timeout() - Retry handler for the disc component
+ * @work: Structure holding disc obj that needs retry discovery
+ *
  * Handle retry of memory allocation for remote ports.
  */
 static void fc_disc_timeout(struct work_struct *work)
@@ -673,7 +676,7 @@ static void fc_disc_timeout(struct work_struct *work)
 }
 
 /**
- * fc_disc_gpn_ft_resp - Handle a response frame from Get Port Names (GPN_FT)
+ * fc_disc_gpn_ft_resp() - Handle a response frame from Get Port Names (GPN_FT)
  * @sp: Current sequence of GPN_FT exchange
  * @fp: response frame
  * @lp_arg: Fibre Channel host port instance
@@ -712,9 +715,7 @@ static void fc_disc_gpn_ft_resp(struct fc_seq *sp, struct fc_frame *fp,
 			       fr_len(fp));
 		} else if (ntohs(cp->ct_cmd) == FC_FS_ACC) {
 
-			/*
-			 * Accepted.  Parse response.
-			 */
+			/* Accepted, parse the response. */
 			buf = cp + 1;
 			len -= sizeof(*cp);
 		} else if (ntohs(cp->ct_cmd) == FC_FS_RJT) {
@@ -746,7 +747,7 @@ static void fc_disc_gpn_ft_resp(struct fc_seq *sp, struct fc_frame *fp,
 }
 
 /**
- * fc_disc_single - Discover the directory information for a single target
+ * fc_disc_single() - Discover the directory information for a single target
  * @lport: FC local port
  * @dp: The port to rediscover
  *
@@ -782,7 +783,7 @@ out:
 }
 
 /**
- * fc_disc_stop - Stop discovery for a given lport
+ * fc_disc_stop() - Stop discovery for a given lport
  * @lport: The lport that discovery should stop for
  */
 void fc_disc_stop(struct fc_lport *lport)
@@ -796,7 +797,7 @@ void fc_disc_stop(struct fc_lport *lport)
 }
 
 /**
- * fc_disc_stop_final - Stop discovery for a given lport
+ * fc_disc_stop_final() - Stop discovery for a given lport
  * @lport: The lport that discovery should stop for
  *
  * This function will block until discovery has been
@@ -809,7 +810,7 @@ void fc_disc_stop_final(struct fc_lport *lport)
 }
 
 /**
- * fc_disc_init - Initialize the discovery block
+ * fc_disc_init() - Initialize the discovery block
  * @lport: FC local port
  */
 int fc_disc_init(struct fc_lport *lport)
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index ecc72612c385..2a631d7dbcec 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -161,7 +161,7 @@ static struct fc_fcp_pkt *fc_fcp_pkt_alloc(struct fc_lport *lp, gfp_t gfp)
 }
 
 /**
- * fc_fcp_pkt_release - release hold on scsi_pkt packet
+ * fc_fcp_pkt_release() - release hold on scsi_pkt packet
  * @fsp:	fcp packet struct
  *
  * This is used by upper layer scsi driver.
@@ -183,8 +183,7 @@ static void fc_fcp_pkt_hold(struct fc_fcp_pkt *fsp)
 }
 
 /**
- * fc_fcp_pkt_destory - release hold on scsi_pkt packet
- *
+ * fc_fcp_pkt_destory() - release hold on scsi_pkt packet
  * @seq:		exchange sequence
  * @fsp:	fcp packet struct
  *
@@ -199,7 +198,7 @@ static void fc_fcp_pkt_destroy(struct fc_seq *seq, void *fsp)
 }
 
 /**
- * fc_fcp_lock_pkt - lock a packet and get a ref to it.
+ * fc_fcp_lock_pkt() - lock a packet and get a ref to it.
  * @fsp:	fcp packet
  *
  * We should only return error if we return a command to scsi-ml before
@@ -291,9 +290,7 @@ static void fc_fcp_recv_data(struct fc_fcp_pkt *fsp, struct fc_frame *fp)
 	buf = fc_frame_payload_get(fp, 0);
 
 	if (offset + len > fsp->data_len) {
-		/*
-		 * this should never happen
-		 */
+		/* this should never happen */
 		if ((fr_flags(fp) & FCPHF_CRC_UNCHECKED) &&
 		    fc_frame_crc_check(fp))
 			goto crc_err;
@@ -387,8 +384,8 @@ crc_err:
 		fc_fcp_complete_locked(fsp);
 }
 
-/*
- * fc_fcp_send_data -  Send SCSI data to target.
+/**
+ * fc_fcp_send_data() -  Send SCSI data to target.
  * @fsp: ptr to fc_fcp_pkt
  * @sp: ptr to this sequence
  * @offset: starting offset for this data request
@@ -610,8 +607,8 @@ static void fc_fcp_abts_resp(struct fc_fcp_pkt *fsp, struct fc_frame *fp)
 	}
 }
 
-/*
- * fc_fcp_reduce_can_queue - drop can_queue
+/**
+ * fc_fcp_reduce_can_queue() - drop can_queue
  * @lp: lport to drop queueing for
  *
  * If we are getting memory allocation failures, then we may
@@ -642,9 +639,11 @@ done:
 	spin_unlock_irqrestore(lp->host->host_lock, flags);
 }
 
-/*
- * exch mgr calls this routine to process scsi
- * exchanges.
+/**
+ * fc_fcp_recv() - Reveive FCP frames
+ * @seq: The sequence the frame is on
+ * @fp: The FC frame
+ * @arg: The related FCP packet
  *
  * Return   : None
  * Context  : called from Soft IRQ context
@@ -832,7 +831,7 @@ err:
 }
 
 /**
- * fc_fcp_complete_locked - complete processing of a fcp packet
+ * fc_fcp_complete_locked() - complete processing of a fcp packet
  * @fsp:	fcp packet
  *
  * This function may sleep if a timer is pending. The packet lock must be
@@ -900,7 +899,7 @@ static void fc_fcp_cleanup_cmd(struct fc_fcp_pkt *fsp, int error)
 }
 
 /**
- * fc_fcp_cleanup_each_cmd - run fn on each active command
+ * fc_fcp_cleanup_each_cmd() - Cleanup active commads
  * @lp:		logical port
  * @id:		target id
  * @lun:	lun
@@ -952,7 +951,7 @@ static void fc_fcp_abort_io(struct fc_lport *lp)
 }
 
 /**
- * fc_fcp_pkt_send - send a fcp packet to the lower level.
+ * fc_fcp_pkt_send() - send a fcp packet to the lower level.
  * @lp:		fc lport
  * @fsp:	fc packet.
  *
@@ -1727,7 +1726,7 @@ out:
 EXPORT_SYMBOL(fc_queuecommand);
 
 /**
- * fc_io_compl -  Handle responses for completed commands
+ * fc_io_compl() -  Handle responses for completed commands
  * @fsp:	scsi packet
  *
  * Translates a error to a Linux SCSI error.
@@ -1857,7 +1856,7 @@ static void fc_io_compl(struct fc_fcp_pkt *fsp)
 }
 
 /**
- * fc_fcp_complete - complete processing of a fcp packet
+ * fc_fcp_complete() - complete processing of a fcp packet
  * @fsp:	fcp packet
  *
  * This function may sleep if a fsp timer is pending.
@@ -1874,9 +1873,10 @@ void fc_fcp_complete(struct fc_fcp_pkt *fsp)
 EXPORT_SYMBOL(fc_fcp_complete);
 
 /**
- * fc_eh_abort - Abort a command...from scsi host template
+ * fc_eh_abort() - Abort a command
  * @sc_cmd:	scsi command to abort
  *
+ * From scsi host template.
  * send ABTS to the target device  and wait for the response
  * sc_cmd is the pointer to the command to be aborted.
  */
@@ -1920,7 +1920,7 @@ release_pkt:
 EXPORT_SYMBOL(fc_eh_abort);
 
 /**
- * fc_eh_device_reset: Reset a single LUN
+ * fc_eh_device_reset() Reset a single LUN
  * @sc_cmd:	scsi command
  *
  * Set from scsi host template to send tm cmd to the target and wait for the
@@ -1973,7 +1973,7 @@ out:
 EXPORT_SYMBOL(fc_eh_device_reset);
 
 /**
- * fc_eh_host_reset - The reset function will reset the ports on the host.
+ * fc_eh_host_reset() - The reset function will reset the ports on the host.
  * @sc_cmd:	scsi command
  */
 int fc_eh_host_reset(struct scsi_cmnd *sc_cmd)
@@ -1999,7 +1999,7 @@ int fc_eh_host_reset(struct scsi_cmnd *sc_cmd)
 EXPORT_SYMBOL(fc_eh_host_reset);
 
 /**
- * fc_slave_alloc - configure queue depth
+ * fc_slave_alloc() - configure queue depth
  * @sdev:	scsi device
  *
  * Configures queue depth based on host's cmd_per_len. If not set
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index c00de2244c78..2ae50a1188e6 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -139,7 +139,7 @@ static int fc_frame_drop(struct fc_lport *lport, struct fc_frame *fp)
 }
 
 /**
- * fc_lport_rport_callback - Event handler for rport events
+ * fc_lport_rport_callback() - Event handler for rport events
  * @lport: The lport which is receiving the event
  * @rport: The rport which the event has occured on
  * @event: The event that occured
@@ -195,7 +195,7 @@ static void fc_lport_rport_callback(struct fc_lport *lport,
 }
 
 /**
- * fc_lport_state - Return a string which represents the lport's state
+ * fc_lport_state() - Return a string which represents the lport's state
  * @lport: The lport whose state is to converted to a string
  */
 static const char *fc_lport_state(struct fc_lport *lport)
@@ -209,7 +209,7 @@ static const char *fc_lport_state(struct fc_lport *lport)
 }
 
 /**
- * fc_lport_ptp_setup - Create an rport for point-to-point mode
+ * fc_lport_ptp_setup() - Create an rport for point-to-point mode
  * @lport: The lport to attach the ptp rport to
  * @fid: The FID of the ptp rport
  * @remote_wwpn: The WWPN of the ptp rport
@@ -351,7 +351,7 @@ static void fc_lport_add_fc4_type(struct fc_lport *lport, enum fc_fh_type type)
 }
 
 /**
- * fc_lport_recv_rlir_req - Handle received Registered Link Incident Report.
+ * fc_lport_recv_rlir_req() - Handle received Registered Link Incident Report.
  * @lport: Fibre Channel local port recieving the RLIR
  * @sp: current sequence in the RLIR exchange
  * @fp: RLIR request frame
@@ -370,7 +370,7 @@ static void fc_lport_recv_rlir_req(struct fc_seq *sp, struct fc_frame *fp,
 }
 
 /**
- * fc_lport_recv_echo_req - Handle received ECHO request
+ * fc_lport_recv_echo_req() - Handle received ECHO request
  * @lport: Fibre Channel local port recieving the ECHO
  * @sp: current sequence in the ECHO exchange
  * @fp: ECHO request frame
@@ -412,7 +412,7 @@ static void fc_lport_recv_echo_req(struct fc_seq *sp, struct fc_frame *in_fp,
 }
 
 /**
- * fc_lport_recv_echo_req - Handle received Request Node ID data request
+ * fc_lport_recv_echo_req() - Handle received Request Node ID data request
  * @lport: Fibre Channel local port recieving the RNID
  * @sp: current sequence in the RNID exchange
  * @fp: RNID request frame
@@ -479,7 +479,7 @@ static void fc_lport_recv_rnid_req(struct fc_seq *sp, struct fc_frame *in_fp,
 }
 
 /**
- * fc_lport_recv_adisc_req - Handle received Address Discovery Request
+ * fc_lport_recv_adisc_req() - Handle received Address Discovery Request
  * @lport: Fibre Channel local port recieving the ADISC
  * @sp: current sequence in the ADISC exchange
  * @fp: ADISC request frame
@@ -529,7 +529,7 @@ static void fc_lport_recv_adisc_req(struct fc_seq *sp, struct fc_frame *in_fp,
 }
 
 /**
- * fc_lport_recv_logo_req - Handle received fabric LOGO request
+ * fc_lport_recv_logo_req() - Handle received fabric LOGO request
  * @lport: Fibre Channel local port recieving the LOGO
  * @sp: current sequence in the LOGO exchange
  * @fp: LOGO request frame
@@ -546,7 +546,7 @@ static void fc_lport_recv_logo_req(struct fc_seq *sp, struct fc_frame *fp,
 }
 
 /**
- * fc_fabric_login - Start the lport state machine
+ * fc_fabric_login() - Start the lport state machine
  * @lport: The lport that should log into the fabric
  *
  * Locking Note: This function should not be called
@@ -568,7 +568,7 @@ int fc_fabric_login(struct fc_lport *lport)
 EXPORT_SYMBOL(fc_fabric_login);
 
 /**
- * fc_linkup - Handler for transport linkup events
+ * fc_linkup() - Handler for transport linkup events
  * @lport: The lport whose link is up
  */
 void fc_linkup(struct fc_lport *lport)
@@ -588,7 +588,7 @@ void fc_linkup(struct fc_lport *lport)
 EXPORT_SYMBOL(fc_linkup);
 
 /**
- * fc_linkdown - Handler for transport linkdown events
+ * fc_linkdown() - Handler for transport linkdown events
  * @lport: The lport whose link is down
  */
 void fc_linkdown(struct fc_lport *lport)
@@ -607,12 +607,12 @@ void fc_linkdown(struct fc_lport *lport)
 EXPORT_SYMBOL(fc_linkdown);
 
 /**
- * fc_fabric_logoff - Logout of the fabric
+ * fc_fabric_logoff() - Logout of the fabric
  * @lport:	      fc_lport pointer to logoff the fabric
  *
  * Return value:
  *	0 for success, -1 for failure
- **/
+ */
 int fc_fabric_logoff(struct fc_lport *lport)
 {
 	lport->tt.disc_stop_final(lport);
@@ -625,7 +625,7 @@ int fc_fabric_logoff(struct fc_lport *lport)
 EXPORT_SYMBOL(fc_fabric_logoff);
 
 /**
- * fc_lport_destroy - unregister a fc_lport
+ * fc_lport_destroy() - unregister a fc_lport
  * @lport:	      fc_lport pointer to unregister
  *
  * Return value:
@@ -635,7 +635,7 @@ EXPORT_SYMBOL(fc_fabric_logoff);
  * clean-up all the allocated memory
  * and free up other system resources.
  *
- **/
+ */
 int fc_lport_destroy(struct fc_lport *lport)
 {
 	lport->tt.frame_send = fc_frame_drop;
@@ -646,15 +646,14 @@ int fc_lport_destroy(struct fc_lport *lport)
 EXPORT_SYMBOL(fc_lport_destroy);
 
 /**
- * fc_set_mfs - sets up the mfs for the corresponding fc_lport
+ * fc_set_mfs() - sets up the mfs for the corresponding fc_lport
  * @lport: fc_lport pointer to unregister
  * @mfs: the new mfs for fc_lport
  *
  * Set mfs for the given fc_lport to the new mfs.
  *
  * Return: 0 for success
- *
- **/
+ */
 int fc_set_mfs(struct fc_lport *lport, u32 mfs)
 {
 	unsigned int old_mfs;
@@ -683,7 +682,7 @@ int fc_set_mfs(struct fc_lport *lport, u32 mfs)
 EXPORT_SYMBOL(fc_set_mfs);
 
 /**
- * fc_lport_disc_callback - Callback for discovery events
+ * fc_lport_disc_callback() - Callback for discovery events
  * @lport: FC local port
  * @event: The discovery event
  */
@@ -708,7 +707,7 @@ void fc_lport_disc_callback(struct fc_lport *lport, enum fc_disc_event event)
 }
 
 /**
- * fc_rport_enter_ready - Enter the ready state and start discovery
+ * fc_rport_enter_ready() - Enter the ready state and start discovery
  * @lport: Fibre Channel local port that is ready
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -725,7 +724,7 @@ static void fc_lport_enter_ready(struct fc_lport *lport)
 }
 
 /**
- * fc_lport_recv_flogi_req - Receive a FLOGI request
+ * fc_lport_recv_flogi_req() - Receive a FLOGI request
  * @sp_in: The sequence the FLOGI is on
  * @rx_fp: The frame the FLOGI is in
  * @lport: The lport that recieved the request
@@ -815,7 +814,7 @@ out:
 }
 
 /**
- * fc_lport_recv_req - The generic lport request handler
+ * fc_lport_recv_req() - The generic lport request handler
  * @lport: The lport that received the request
  * @sp: The sequence the request is on
  * @fp: The frame the request is in
@@ -911,7 +910,7 @@ static void fc_lport_recv_req(struct fc_lport *lport, struct fc_seq *sp,
 }
 
 /**
- * fc_lport_reset - Reset an lport
+ * fc_lport_reset() - Reset an lport
  * @lport: The lport which should be reset
  *
  * Locking Note: This functions should not be called with the
@@ -928,7 +927,7 @@ int fc_lport_reset(struct fc_lport *lport)
 EXPORT_SYMBOL(fc_lport_reset);
 
 /**
- * fc_rport_enter_reset - Reset the local port
+ * fc_rport_enter_reset() - Reset the local port
  * @lport: Fibre Channel local port to be reset
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -960,7 +959,7 @@ static void fc_lport_enter_reset(struct fc_lport *lport)
 }
 
 /**
- * fc_lport_error - Handler for any errors
+ * fc_lport_error() - Handler for any errors
  * @lport: The fc_lport object
  * @fp: The frame pointer
  *
@@ -1007,8 +1006,8 @@ static void fc_lport_error(struct fc_lport *lport, struct fc_frame *fp)
 }
 
 /**
- * fc_lport_rft_id_resp - Handle response to Register Fibre
- *			  Channel Types by ID (RPN_ID) request
+ * fc_lport_rft_id_resp() - Handle response to Register Fibre
+ *			    Channel Types by ID (RPN_ID) request
  * @sp: current sequence in RPN_ID exchange
  * @fp: response frame
  * @lp_arg: Fibre Channel host port instance
@@ -1059,8 +1058,8 @@ err:
 }
 
 /**
- * fc_lport_rpn_id_resp - Handle response to Register Port
- *			  Name by ID (RPN_ID) request
+ * fc_lport_rpn_id_resp() - Handle response to Register Port
+ *			    Name by ID (RPN_ID) request
  * @sp: current sequence in RPN_ID exchange
  * @fp: response frame
  * @lp_arg: Fibre Channel host port instance
@@ -1111,7 +1110,7 @@ err:
 }
 
 /**
- * fc_lport_scr_resp - Handle response to State Change Register (SCR) request
+ * fc_lport_scr_resp() - Handle response to State Change Register (SCR) request
  * @sp: current sequence in SCR exchange
  * @fp: response frame
  * @lp_arg: Fibre Channel lport port instance that sent the registration request
@@ -1157,7 +1156,7 @@ err:
 }
 
 /**
- * fc_lport_enter_scr - Send a State Change Register (SCR) request
+ * fc_lport_enter_scr() - Send a State Change Register (SCR) request
  * @lport: Fibre Channel local port to register for state changes
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -1184,7 +1183,7 @@ static void fc_lport_enter_scr(struct fc_lport *lport)
 }
 
 /**
- * fc_lport_enter_rft_id - Register FC4-types with the name server
+ * fc_lport_enter_rft_id() - Register FC4-types with the name server
  * @lport: Fibre Channel local port to register
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -1226,7 +1225,7 @@ static void fc_lport_enter_rft_id(struct fc_lport *lport)
 }
 
 /**
- * fc_rport_enter_rft_id - Register port name with the name server
+ * fc_rport_enter_rft_id() - Register port name with the name server
  * @lport: Fibre Channel local port to register
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -1259,7 +1258,7 @@ static struct fc_rport_operations fc_lport_rport_ops = {
 };
 
 /**
- * fc_rport_enter_dns - Create a rport to the name server
+ * fc_rport_enter_dns() - Create a rport to the name server
  * @lport: Fibre Channel local port requesting a rport for the name server
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -1296,7 +1295,7 @@ err:
 }
 
 /**
- * fc_lport_timeout - Handler for the retry_work timer.
+ * fc_lport_timeout() - Handler for the retry_work timer.
  * @work: The work struct of the fc_lport
  */
 static void fc_lport_timeout(struct work_struct *work)
@@ -1337,7 +1336,7 @@ static void fc_lport_timeout(struct work_struct *work)
 }
 
 /**
- * fc_lport_logo_resp - Handle response to LOGO request
+ * fc_lport_logo_resp() - Handle response to LOGO request
  * @sp: current sequence in LOGO exchange
  * @fp: response frame
  * @lp_arg: Fibre Channel lport port instance that sent the LOGO request
@@ -1383,7 +1382,7 @@ err:
 }
 
 /**
- * fc_rport_enter_logo - Logout of the fabric
+ * fc_rport_enter_logo() - Logout of the fabric
  * @lport: Fibre Channel local port to be logged out
  *
  * Locking Note: The lport lock is expected to be held before calling
@@ -1415,7 +1414,7 @@ static void fc_lport_enter_logo(struct fc_lport *lport)
 }
 
 /**
- * fc_lport_flogi_resp - Handle response to FLOGI request
+ * fc_lport_flogi_resp() - Handle response to FLOGI request
  * @sp: current sequence in FLOGI exchange
  * @fp: response frame
  * @lp_arg: Fibre Channel lport port instance that sent the FLOGI request
@@ -1510,7 +1509,7 @@ err:
 }
 
 /**
- * fc_rport_enter_flogi - Send a FLOGI request to the fabric manager
+ * fc_rport_enter_flogi() - Send a FLOGI request to the fabric manager
  * @lport: Fibre Channel local port to be logged in to the fabric
  *
  * Locking Note: The lport lock is expected to be held before calling
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 4f23a9bb15a1..6f07de15c491 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -146,7 +146,7 @@ struct fc_rport *fc_rport_rogue_create(struct fc_disc_port *dp)
 }
 
 /**
- * fc_rport_state - return a string for the state the rport is in
+ * fc_rport_state() - return a string for the state the rport is in
  * @rport: The rport whose state we want to get a string for
  */
 static const char *fc_rport_state(struct fc_rport *rport)
@@ -161,7 +161,7 @@ static const char *fc_rport_state(struct fc_rport *rport)
 }
 
 /**
- * fc_set_rport_loss_tmo - Set the remote port loss timeout in seconds.
+ * fc_set_rport_loss_tmo() - Set the remote port loss timeout in seconds.
  * @rport: Pointer to Fibre Channel remote port structure
  * @timeout: timeout in seconds
  */
@@ -175,7 +175,7 @@ void fc_set_rport_loss_tmo(struct fc_rport *rport, u32 timeout)
 EXPORT_SYMBOL(fc_set_rport_loss_tmo);
 
 /**
- * fc_plogi_get_maxframe - Get max payload from the common service parameters
+ * fc_plogi_get_maxframe() - Get max payload from the common service parameters
  * @flp: FLOGI payload structure
  * @maxval: upper limit, may be less than what is in the service parameters
  */
@@ -198,7 +198,7 @@ fc_plogi_get_maxframe(struct fc_els_flogi *flp, unsigned int maxval)
 }
 
 /**
- * fc_rport_state_enter - Change the rport's state
+ * fc_rport_state_enter() - Change the rport's state
  * @rport: The rport whose state should change
  * @new: The new state of the rport
  *
@@ -292,7 +292,7 @@ static void fc_rport_work(struct work_struct *work)
 }
 
 /**
- * fc_rport_login - Start the remote port login state machine
+ * fc_rport_login() - Start the remote port login state machine
  * @rport: Fibre Channel remote port
  *
  * Locking Note: Called without the rport lock held. This
@@ -315,7 +315,7 @@ int fc_rport_login(struct fc_rport *rport)
 }
 
 /**
- * fc_rport_logoff - Logoff and remove an rport
+ * fc_rport_logoff() - Logoff and remove an rport
  * @rport: Fibre Channel remote port to be removed
  *
  * Locking Note: Called without the rport lock held. This
@@ -353,7 +353,7 @@ int fc_rport_logoff(struct fc_rport *rport)
 }
 
 /**
- * fc_rport_enter_ready - The rport is ready
+ * fc_rport_enter_ready() - The rport is ready
  * @rport: Fibre Channel remote port that is ready
  *
  * Locking Note: The rport lock is expected to be held before calling
@@ -372,7 +372,7 @@ static void fc_rport_enter_ready(struct fc_rport *rport)
 }
 
 /**
- * fc_rport_timeout - Handler for the retry_work timer.
+ * fc_rport_timeout() - Handler for the retry_work timer.
  * @work: The work struct of the fc_rport_libfc_priv
  *
  * Locking Note: Called without the rport lock held. This
@@ -411,7 +411,7 @@ static void fc_rport_timeout(struct work_struct *work)
 }
 
 /**
- * fc_rport_error - Error handler, called once retries have been exhausted
+ * fc_rport_error() - Error handler, called once retries have been exhausted
  * @rport: The fc_rport object
  * @fp: The frame pointer
  *
@@ -444,7 +444,7 @@ static void fc_rport_error(struct fc_rport *rport, struct fc_frame *fp)
 }
 
 /**
- * fc_rport_error_retry - Error handler when retries are desired
+ * fc_rport_error_retry() - Error handler when retries are desired
  * @rport: The fc_rport object
  * @fp: The frame pointer
  *
@@ -479,7 +479,7 @@ static void fc_rport_error_retry(struct fc_rport *rport, struct fc_frame *fp)
 }
 
 /**
- * fc_rport_plogi_recv_resp - Handle incoming ELS PLOGI response
+ * fc_rport_plogi_recv_resp() - Handle incoming ELS PLOGI response
  * @sp: current sequence in the PLOGI exchange
  * @fp: response frame
  * @rp_arg: Fibre Channel remote port
@@ -554,7 +554,7 @@ err:
 }
 
 /**
- * fc_rport_enter_plogi - Send Port Login (PLOGI) request to peer
+ * fc_rport_enter_plogi() - Send Port Login (PLOGI) request to peer
  * @rport: Fibre Channel remote port to send PLOGI to
  *
  * Locking Note: The rport lock is expected to be held before calling
@@ -587,7 +587,7 @@ static void fc_rport_enter_plogi(struct fc_rport *rport)
 }
 
 /**
- * fc_rport_prli_resp - Process Login (PRLI) response handler
+ * fc_rport_prli_resp() - Process Login (PRLI) response handler
  * @sp: current sequence in the PRLI exchange
  * @fp: response frame
  * @rp_arg: Fibre Channel remote port
@@ -657,7 +657,7 @@ err:
 }
 
 /**
- * fc_rport_logo_resp - Logout (LOGO) response handler
+ * fc_rport_logo_resp() - Logout (LOGO) response handler
  * @sp: current sequence in the LOGO exchange
  * @fp: response frame
  * @rp_arg: Fibre Channel remote port
@@ -706,7 +706,7 @@ err:
 }
 
 /**
- * fc_rport_enter_prli - Send Process Login (PRLI) request to peer
+ * fc_rport_enter_prli() - Send Process Login (PRLI) request to peer
  * @rport: Fibre Channel remote port to send PRLI to
  *
  * Locking Note: The rport lock is expected to be held before calling
@@ -741,7 +741,7 @@ static void fc_rport_enter_prli(struct fc_rport *rport)
 }
 
 /**
- * fc_rport_els_rtv_resp - Request Timeout Value response handler
+ * fc_rport_els_rtv_resp() - Request Timeout Value response handler
  * @sp: current sequence in the RTV exchange
  * @fp: response frame
  * @rp_arg: Fibre Channel remote port
@@ -807,7 +807,7 @@ err:
 }
 
 /**
- * fc_rport_enter_rtv - Send Request Timeout Value (RTV) request to peer
+ * fc_rport_enter_rtv() - Send Request Timeout Value (RTV) request to peer
  * @rport: Fibre Channel remote port to send RTV to
  *
  * Locking Note: The rport lock is expected to be held before calling
@@ -838,7 +838,7 @@ static void fc_rport_enter_rtv(struct fc_rport *rport)
 }
 
 /**
- * fc_rport_enter_logo - Send Logout (LOGO) request to peer
+ * fc_rport_enter_logo() - Send Logout (LOGO) request to peer
  * @rport: Fibre Channel remote port to send LOGO to
  *
  * Locking Note: The rport lock is expected to be held before calling
@@ -870,7 +870,7 @@ static void fc_rport_enter_logo(struct fc_rport *rport)
 
 
 /**
- * fc_rport_recv_req - Receive a request from a rport
+ * fc_rport_recv_req() - Receive a request from a rport
  * @sp: current sequence in the PLOGI exchange
  * @fp: response frame
  * @rp_arg: Fibre Channel remote port
@@ -931,7 +931,7 @@ void fc_rport_recv_req(struct fc_seq *sp, struct fc_frame *fp,
 }
 
 /**
- * fc_rport_recv_plogi_req - Handle incoming Port Login (PLOGI) request
+ * fc_rport_recv_plogi_req() - Handle incoming Port Login (PLOGI) request
  * @rport: Fibre Channel remote port that initiated PLOGI
  * @sp: current sequence in the PLOGI exchange
  * @fp: PLOGI request frame
@@ -1053,7 +1053,7 @@ static void fc_rport_recv_plogi_req(struct fc_rport *rport,
 }
 
 /**
- * fc_rport_recv_prli_req - Handle incoming Process Login (PRLI) request
+ * fc_rport_recv_prli_req() - Handle incoming Process Login (PRLI) request
  * @rport: Fibre Channel remote port that initiated PRLI
  * @sp: current sequence in the PRLI exchange
  * @fp: PRLI request frame
@@ -1204,7 +1204,7 @@ static void fc_rport_recv_prli_req(struct fc_rport *rport,
 }
 
 /**
- * fc_rport_recv_prlo_req - Handle incoming Process Logout (PRLO) request
+ * fc_rport_recv_prlo_req() - Handle incoming Process Logout (PRLO) request
  * @rport: Fibre Channel remote port that initiated PRLO
  * @sp: current sequence in the PRLO exchange
  * @fp: PRLO request frame
@@ -1235,7 +1235,7 @@ static void fc_rport_recv_prlo_req(struct fc_rport *rport, struct fc_seq *sp,
 }
 
 /**
- * fc_rport_recv_logo_req - Handle incoming Logout (LOGO) request
+ * fc_rport_recv_logo_req() - Handle incoming Logout (LOGO) request
  * @rport: Fibre Channel remote port that initiated LOGO
  * @sp: current sequence in the LOGO exchange
  * @fp: LOGO request frame
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 282829cdf352..a2e126b86e3e 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -665,7 +665,7 @@ struct fc_lport {
 	struct delayed_work	disc_work;
 };
 
-/**
+/*
  * FC_LPORT HELPER FUNCTIONS
  *****************************/
 static inline void *lport_priv(const struct fc_lport *lp)
@@ -697,7 +697,7 @@ static inline void fc_lport_state_enter(struct fc_lport *lp,
 }
 
 
-/**
+/*
  * LOCAL PORT LAYER
  *****************************/
 int fc_lport_init(struct fc_lport *lp);
@@ -747,19 +747,19 @@ int fc_lport_reset(struct fc_lport *);
 int fc_set_mfs(struct fc_lport *lp, u32 mfs);
 
 
-/**
+/*
  * REMOTE PORT LAYER
  *****************************/
 int fc_rport_init(struct fc_lport *lp);
 void fc_rport_terminate_io(struct fc_rport *rp);
 
-/**
+/*
  * DISCOVERY LAYER
  *****************************/
 int fc_disc_init(struct fc_lport *lp);
 
 
-/**
+/*
  * SCSI LAYER
  *****************************/
 /*
@@ -820,7 +820,7 @@ int fc_change_queue_type(struct scsi_device *sdev, int tag_type);
  */
 void fc_fcp_destroy(struct fc_lport *);
 
-/**
+/*
  * ELS/CT interface
  *****************************/
 /*
@@ -829,7 +829,7 @@ void fc_fcp_destroy(struct fc_lport *);
 int fc_elsct_init(struct fc_lport *lp);
 
 
-/**
+/*
  * EXCHANGE MANAGER LAYER
  *****************************/
 /*
-- 
cgit v1.2.3


From fc47ff6b1b27fb736f255ed8cd490356e0cd228f Mon Sep 17 00:00:00 2001
From: Robert Love <robert.w.love@intel.com>
Date: Fri, 27 Feb 2009 10:55:55 -0800
Subject: [SCSI] libfc, fcoe: Remove unnecessary cast by removing inline
 wrapper

Comment from "Andrew Morton <akpm@linux-foundation.org>"

> +{
> +     return (struct fcoe_softc *)lport_priv(lp);

unneeded/undesirable cast of void*.  There are probably zillions of
instances of this - there always are.

This whole inline function was unnecessary. The FCoE layer knows
that it's data structure is stored in the lport private data, it
can just access it from lport_priv().

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/fcoe/fcoe_sw.c |  2 +-
 drivers/scsi/fcoe/libfcoe.c | 12 ++++++------
 include/scsi/libfcoe.h      |  8 +-------
 3 files changed, 8 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c
index 007d1fbae808..f667dce1bbba 100644
--- a/drivers/scsi/fcoe/fcoe_sw.c
+++ b/drivers/scsi/fcoe/fcoe_sw.c
@@ -297,7 +297,7 @@ static int fcoe_sw_destroy(struct net_device *netdev)
 	if (!lp)
 		return -ENODEV;
 
-	fc = fcoe_softc(lp);
+	fc = lport_priv(lp);
 
 	/* Logout of the fabric */
 	fc_fabric_logoff(lp);
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index d006d6576817..02f044a87159 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -387,7 +387,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
 
 	WARN_ON((fr_len(fp) % sizeof(u32)) != 0);
 
-	fc = fcoe_softc(lp);
+	fc = lport_priv(lp);
 	/*
 	 * if it is a flogi then we need to learn gw-addr
 	 * and my own fcid
@@ -768,7 +768,7 @@ static int fcoe_check_wait_queue(struct fc_lport *lp)
 	struct sk_buff *skb;
 	struct fcoe_softc *fc;
 
-	fc = fcoe_softc(lp);
+	fc = lport_priv(lp);
 	spin_lock_bh(&fc->fcoe_pending_queue.lock);
 
 	/*
@@ -805,7 +805,7 @@ static void fcoe_insert_wait_queue_head(struct fc_lport *lp,
 {
 	struct fcoe_softc *fc;
 
-	fc = fcoe_softc(lp);
+	fc = lport_priv(lp);
 	spin_lock_bh(&fc->fcoe_pending_queue.lock);
 	__skb_queue_head(&fc->fcoe_pending_queue, skb);
 	spin_unlock_bh(&fc->fcoe_pending_queue.lock);
@@ -823,7 +823,7 @@ static void fcoe_insert_wait_queue(struct fc_lport *lp,
 {
 	struct fcoe_softc *fc;
 
-	fc = fcoe_softc(lp);
+	fc = lport_priv(lp);
 	spin_lock_bh(&fc->fcoe_pending_queue.lock);
 	__skb_queue_tail(&fc->fcoe_pending_queue, skb);
 	spin_unlock_bh(&fc->fcoe_pending_queue.lock);
@@ -1113,7 +1113,7 @@ MODULE_PARM_DESC(destroy, "Destroy fcoe port");
  */
 int fcoe_link_ok(struct fc_lport *lp)
 {
-	struct fcoe_softc *fc = fcoe_softc(lp);
+	struct fcoe_softc *fc = lport_priv(lp);
 	struct net_device *dev = fc->real_dev;
 	struct ethtool_cmd ecmd = { ETHTOOL_GSET };
 	int rc = 0;
@@ -1329,7 +1329,7 @@ int fcoe_hostlist_add(const struct fc_lport *lp)
 
 	fc = fcoe_hostlist_lookup_softc(fcoe_netdev(lp));
 	if (!fc) {
-		fc = fcoe_softc(lp);
+		fc = lport_priv(lp);
 		write_lock_bh(&fcoe_hostlist_lock);
 		list_add_tail(&fc->list, &fcoe_hostlist);
 		write_unlock_bh(&fcoe_hostlist_lock);
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 89fdbb9a6a1b..f43d3833a7a8 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -58,16 +58,10 @@ struct fcoe_softc {
 	u8 address_mode;
 };
 
-static inline struct fcoe_softc *fcoe_softc(
-	const struct fc_lport *lp)
-{
-	return (struct fcoe_softc *)lport_priv(lp);
-}
-
 static inline struct net_device *fcoe_netdev(
 	const struct fc_lport *lp)
 {
-	return fcoe_softc(lp)->real_dev;
+	return ((struct fcoe_softc *)lport_priv(lp))->real_dev;
 }
 
 static inline struct fcoe_hdr *skb_fcoe_header(const struct sk_buff *skb)
-- 
cgit v1.2.3


From 74846bf85e42b4ba851d3f0dd67aa1df245895f9 Mon Sep 17 00:00:00 2001
From: Yi Zou <yi.zou@intel.com>
Date: Fri, 27 Feb 2009 10:56:16 -0800
Subject: [SCSI] fcoe: ETH_P_8021Q is already in if_ether and fcoe is not using
 it anyway

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/scsi/fc/fc_fcoe.h | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'include')

diff --git a/include/scsi/fc/fc_fcoe.h b/include/scsi/fc/fc_fcoe.h
index 57aaa8f0d613..f271d9cc0fc2 100644
--- a/include/scsi/fc/fc_fcoe.h
+++ b/include/scsi/fc/fc_fcoe.h
@@ -31,10 +31,6 @@
 #define	ETH_P_FCOE	0x8906		/* FCOE ether type */
 #endif
 
-#ifndef ETH_P_8021Q
-#define	ETH_P_8021Q	0x8100
-#endif
-
 /*
  * FC_FCOE_OUI hasn't been standardized yet.   XXX TBD.
  */
-- 
cgit v1.2.3


From c826a3145736e3baabebccfd0aecfbb6dae059f2 Mon Sep 17 00:00:00 2001
From: Vasu Dev <vasu.dev@intel.com>
Date: Fri, 27 Feb 2009 10:56:27 -0800
Subject: [SCSI] fcoe: Out of order tx frames was causing several check
 condition SCSI status

frames followed by these errors in log.

	[sdp] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
	[sdp] Sense Key : Aborted Command [current]
	[sdp] Add. Sense: Data phase error

This was causing some test apps to exit due to write failure under heavy
load.

This was due to a race around adding and removing tx frame skb in
fcoe_pending_queue, Chris Leech helped me to find that brief unlocking
period when pulling skb from fcoe_pending_queue in various contexts
(fcoe_watchdog and fcoe_xmit) and then adding skb back into fcoe_pending_queue
up on a failed fcoe_start_io could change skb/tx frame order in
fcoe_pending_queue. Thanks Chris.

This patch allows only single context to pull skb from fcoe_pending_queue
at any time to prevent above described ordering issue/race by use of
fcoe_pending_queue_active flag.

This patch simplified fcoe_watchdog with modified fcoe_check_wait_queue by
use of FCOE_LOW_QUEUE_DEPTH instead previously used several conditionals
to clear and set lp->qfull.

I think FCOE_MAX_QUEUE_DEPTH with FCOE_LOW_QUEUE_DEPTH  will work better
in re/setting lp->qfull and these could be fine tuned for performance.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/fcoe/fcoe_sw.c |  1 +
 drivers/scsi/fcoe/libfcoe.c | 45 +++++++++++++++++++++------------------------
 include/scsi/libfcoe.h      |  1 +
 3 files changed, 23 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c
index 37d359db1648..da210eba1941 100644
--- a/drivers/scsi/fcoe/fcoe_sw.c
+++ b/drivers/scsi/fcoe/fcoe_sw.c
@@ -188,6 +188,7 @@ static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev)
 
 
 	skb_queue_head_init(&fc->fcoe_pending_queue);
+	fc->fcoe_pending_queue_active = 0;
 
 	/* setup Source Mac Address */
 	memcpy(fc->ctl_src_addr, fc->real_dev->dev_addr,
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 7265e0937995..14dd8a0402b6 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -49,6 +49,7 @@
 static int debug_fcoe;
 
 #define FCOE_MAX_QUEUE_DEPTH  256
+#define FCOE_LOW_QUEUE_DEPTH  32
 
 /* destination address mode */
 #define FCOE_GW_ADDR_MODE	    0x00
@@ -723,21 +724,12 @@ static void fcoe_recv_flogi(struct fcoe_softc *fc, struct fc_frame *fp, u8 *sa)
  */
 void fcoe_watchdog(ulong vp)
 {
-	struct fc_lport *lp;
 	struct fcoe_softc *fc;
-	int qfilled = 0;
 
 	read_lock(&fcoe_hostlist_lock);
 	list_for_each_entry(fc, &fcoe_hostlist, list) {
-		lp = fc->lp;
-		if (lp) {
-			if (fc->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH)
-				qfilled = 1;
-			if (fcoe_check_wait_queue(lp) <	 FCOE_MAX_QUEUE_DEPTH) {
-				if (qfilled)
-					lp->qfull = 0;
-			}
-		}
+		if (fc->lp)
+			fcoe_check_wait_queue(fc->lp);
 	}
 	read_unlock(&fcoe_hostlist_lock);
 
@@ -753,8 +745,8 @@ void fcoe_watchdog(ulong vp)
  *
  * This empties the wait_queue, dequeue the head of the wait_queue queue
  * and calls fcoe_start_io() for each packet, if all skb have been
- * transmitted, return 0 if a error occurs, then restore wait_queue and
- * try again later.
+ * transmitted, return qlen or -1 if a error occurs, then restore
+ * wait_queue and  try again later.
  *
  * The wait_queue is used when the skb transmit fails. skb will go
  * in the wait_queue which will be emptied by the time function OR
@@ -764,33 +756,38 @@ void fcoe_watchdog(ulong vp)
  */
 static int fcoe_check_wait_queue(struct fc_lport *lp)
 {
-	int rc;
 	struct sk_buff *skb;
 	struct fcoe_softc *fc;
+	int rc = -1;
 
 	fc = lport_priv(lp);
 	spin_lock_bh(&fc->fcoe_pending_queue.lock);
 
-	/*
-	 * if interface pending queue full then set qfull in lport.
-	 */
-	if (fc->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH)
-		lp->qfull = 1;
+	if (fc->fcoe_pending_queue_active)
+		goto out;
+	fc->fcoe_pending_queue_active = 1;
 	if (fc->fcoe_pending_queue.qlen) {
 		while ((skb = __skb_dequeue(&fc->fcoe_pending_queue)) != NULL) {
 			spin_unlock_bh(&fc->fcoe_pending_queue.lock);
 			rc = fcoe_start_io(skb);
-			if (rc) {
+			if (rc)
 				fcoe_insert_wait_queue_head(lp, skb);
-				return rc;
-			}
 			spin_lock_bh(&fc->fcoe_pending_queue.lock);
+			if (rc)
+				break;
 		}
-		if (fc->fcoe_pending_queue.qlen < FCOE_MAX_QUEUE_DEPTH)
+		/*
+		 * if interface pending queue is below FCOE_LOW_QUEUE_DEPTH
+		 * then clear qfull flag.
+		 */
+		if (fc->fcoe_pending_queue.qlen < FCOE_LOW_QUEUE_DEPTH)
 			lp->qfull = 0;
 	}
+	fc->fcoe_pending_queue_active = 0;
+	rc = fc->fcoe_pending_queue.qlen;
+out:
 	spin_unlock_bh(&fc->fcoe_pending_queue.lock);
-	return fc->fcoe_pending_queue.qlen;
+	return rc;
 }
 
 /**
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index f43d3833a7a8..941818f29f59 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -46,6 +46,7 @@ struct fcoe_softc {
 	struct net_device *phys_dev;		/* device with ethtool_ops */
 	struct packet_type  fcoe_packet_type;
 	struct sk_buff_head fcoe_pending_queue;
+	u8	fcoe_pending_queue_active;
 
 	u8 dest_addr[ETH_ALEN];
 	u8 ctl_src_addr[ETH_ALEN];
-- 
cgit v1.2.3


From ae46141ff08f1965b17c531b571953c39ce8b9e2 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 10 Mar 2009 20:33:18 -0400
Subject: NFSv3: Fix posix ACL code

Fix a memory leak due to allocation in the XDR layer. In cases where the
RPC call needs to be retransmitted, we end up allocating new pages without
clearing the old ones. Fix this by moving the allocation into
nfs3_proc_setacls().

Also fix an issue discovered by Kevin Rudd, whereby the amount of memory
reserved for the acls in the xdr_buf->head was miscalculated, and causing
corruption.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs3acl.c        | 27 +++++++++++++++++++++------
 fs/nfs/nfs3xdr.c        | 34 +++++++++++++---------------------
 include/linux/nfs_xdr.h |  2 ++
 include/linux/nfsacl.h  |  3 +++
 4 files changed, 39 insertions(+), 27 deletions(-)

(limited to 'include')

diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index cef62557c87d..6bbf0e6daad2 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -292,7 +292,7 @@ static int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
 {
 	struct nfs_server *server = NFS_SERVER(inode);
 	struct nfs_fattr fattr;
-	struct page *pages[NFSACL_MAXPAGES] = { };
+	struct page *pages[NFSACL_MAXPAGES];
 	struct nfs3_setaclargs args = {
 		.inode = inode,
 		.mask = NFS_ACL,
@@ -303,7 +303,7 @@ static int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
 		.rpc_argp	= &args,
 		.rpc_resp	= &fattr,
 	};
-	int status, count;
+	int status;
 
 	status = -EOPNOTSUPP;
 	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
@@ -319,6 +319,20 @@ static int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
 	if (S_ISDIR(inode->i_mode)) {
 		args.mask |= NFS_DFACL;
 		args.acl_default = dfacl;
+		args.len = nfsacl_size(acl, dfacl);
+	} else
+		args.len = nfsacl_size(acl, NULL);
+
+	if (args.len > NFS_ACL_INLINE_BUFSIZE) {
+		unsigned int npages = 1 + ((args.len - 1) >> PAGE_SHIFT);
+
+		status = -ENOMEM;
+		do {
+			args.pages[args.npages] = alloc_page(GFP_KERNEL);
+			if (args.pages[args.npages] == NULL)
+				goto out_freepages;
+			args.npages++;
+		} while (args.npages < npages);
 	}
 
 	dprintk("NFS call setacl\n");
@@ -329,10 +343,6 @@ static int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
 	nfs_zap_acl_cache(inode);
 	dprintk("NFS reply setacl: %d\n", status);
 
-	/* pages may have been allocated at the xdr layer. */
-	for (count = 0; count < NFSACL_MAXPAGES && args.pages[count]; count++)
-		__free_page(args.pages[count]);
-
 	switch (status) {
 		case 0:
 			status = nfs_refresh_inode(inode, &fattr);
@@ -346,6 +356,11 @@ static int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
 		case -ENOTSUPP:
 			status = -EOPNOTSUPP;
 	}
+out_freepages:
+	while (args.npages != 0) {
+		args.npages--;
+		__free_page(args.pages[args.npages]);
+	}
 out:
 	return status;
 }
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 11cdddec1432..6cdeacffde46 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -82,8 +82,10 @@
 #define NFS3_commitres_sz	(1+NFS3_wcc_data_sz+2)
 
 #define ACL3_getaclargs_sz	(NFS3_fh_sz+1)
-#define ACL3_setaclargs_sz	(NFS3_fh_sz+1+2*(2+5*3))
-#define ACL3_getaclres_sz	(1+NFS3_post_op_attr_sz+1+2*(2+5*3))
+#define ACL3_setaclargs_sz	(NFS3_fh_sz+1+ \
+				XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE))
+#define ACL3_getaclres_sz	(1+NFS3_post_op_attr_sz+1+ \
+				XDR_QUADLEN(NFS_ACL_INLINE_BUFSIZE))
 #define ACL3_setaclres_sz	(1+NFS3_post_op_attr_sz)
 
 /*
@@ -703,28 +705,18 @@ nfs3_xdr_setaclargs(struct rpc_rqst *req, __be32 *p,
                    struct nfs3_setaclargs *args)
 {
 	struct xdr_buf *buf = &req->rq_snd_buf;
-	unsigned int base, len_in_head, len = nfsacl_size(
-		(args->mask & NFS_ACL)   ? args->acl_access  : NULL,
-		(args->mask & NFS_DFACL) ? args->acl_default : NULL);
-	int count, err;
+	unsigned int base;
+	int err;
 
 	p = xdr_encode_fhandle(p, NFS_FH(args->inode));
 	*p++ = htonl(args->mask);
-	base = (char *)p - (char *)buf->head->iov_base;
-	/* put as much of the acls into head as possible. */
-	len_in_head = min_t(unsigned int, buf->head->iov_len - base, len);
-	len -= len_in_head;
-	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p + (len_in_head >> 2));
-
-	for (count = 0; (count << PAGE_SHIFT) < len; count++) {
-		args->pages[count] = alloc_page(GFP_KERNEL);
-		if (!args->pages[count]) {
-			while (count)
-				__free_page(args->pages[--count]);
-			return -ENOMEM;
-		}
-	}
-	xdr_encode_pages(buf, args->pages, 0, len);
+	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+	base = req->rq_slen;
+
+	if (args->npages != 0)
+		xdr_encode_pages(buf, args->pages, 0, args->len);
+	else
+		req->rq_slen += args->len;
 
 	err = nfsacl_encode(buf, base, args->inode,
 			    (args->mask & NFS_ACL) ?
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index a550b528319f..2e5f00066afd 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -406,6 +406,8 @@ struct nfs3_setaclargs {
 	int			mask;
 	struct posix_acl *	acl_access;
 	struct posix_acl *	acl_default;
+	size_t			len;
+	unsigned int		npages;
 	struct page **		pages;
 };
 
diff --git a/include/linux/nfsacl.h b/include/linux/nfsacl.h
index 54487a99beb8..43011b69297c 100644
--- a/include/linux/nfsacl.h
+++ b/include/linux/nfsacl.h
@@ -37,6 +37,9 @@
 #define NFSACL_MAXPAGES		((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
 				 >> PAGE_SHIFT)
 
+#define NFS_ACL_MAX_ENTRIES_INLINE	(5)
+#define NFS_ACL_INLINE_BUFSIZE	((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2)
+
 static inline unsigned int
 nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
 {
-- 
cgit v1.2.3


From 78851e1aa4c3b796d5f0bb11b445016726302b44 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Tue, 10 Mar 2009 20:33:19 -0400
Subject: NLM: Shrink the IPv4-only version of nlm_cmp_addr()

Clean up/micro-optimatization:  Make the AF_INET-only version of
nlm_cmp_addr() smaller.  This matches the style of
nlm_privileged_requester(), and makes the AF_INET-only version of
nlm_cmp_addr() nearly the same size as it was before IPv6 support.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 include/linux/lockd/lockd.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include')

diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index aa6fe7026de7..51855dfd8adb 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -346,6 +346,7 @@ static inline int __nlm_cmp_addr4(const struct sockaddr *sap1,
 	return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr;
 }
 
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 static inline int __nlm_cmp_addr6(const struct sockaddr *sap1,
 				  const struct sockaddr *sap2)
 {
@@ -353,6 +354,13 @@ static inline int __nlm_cmp_addr6(const struct sockaddr *sap1,
 	const struct sockaddr_in6 *sin2 = (const struct sockaddr_in6 *)sap2;
 	return ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr);
 }
+#else	/* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
+static inline int __nlm_cmp_addr6(const struct sockaddr *sap1,
+				  const struct sockaddr *sap2)
+{
+	return 0;
+}
+#endif	/* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
 
 /*
  * Compare two host addresses
-- 
cgit v1.2.3


From 47e78ecc2adb778c7d2b54924e90433a0182a6ba Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 11 Mar 2009 09:50:19 +0100
Subject: ALSA: Remove obsolete snd_xferv struct and ioctls

Removed obsleted snd_xferv struct and ioctls that are no longer used
in the current codebase.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/asound.h | 14 --------------
 1 file changed, 14 deletions(-)

(limited to 'include')

diff --git a/include/sound/asound.h b/include/sound/asound.h
index 1c02ed1d7c4a..b6e01e6b3f86 100644
--- a/include/sound/asound.h
+++ b/include/sound/asound.h
@@ -919,18 +919,4 @@ struct snd_ctl_event {
 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM		"PCM Stream"
 #define SNDRV_CTL_NAME_IEC958(expl,direction,what)	"IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
 
-/*
- *
- */
-
-struct snd_xferv {
-	const struct iovec *vector;
-	unsigned long count;
-};
-
-enum {
-	SNDRV_IOCTL_READV = _IOW('K', 0x00, struct snd_xferv),
-	SNDRV_IOCTL_WRITEV = _IOW('K', 0x01, struct snd_xferv),
-};
-
 #endif /* __SOUND_ASOUND_H */
-- 
cgit v1.2.3


From 78a05b522044a50dc2a6811d10b9ee3f7c3e78f8 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 11 Mar 2009 09:52:28 +0100
Subject: ALSA: Use define for ioctl definitions

Use define instead of enum for ioctl definitions since strace can't
parse ioctls defined via enum properly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/asound.h    | 171 +++++++++++++++++++++-------------------------
 include/sound/sfnt_info.h |  14 ++--
 2 files changed, 85 insertions(+), 100 deletions(-)

(limited to 'include')

diff --git a/include/sound/asound.h b/include/sound/asound.h
index b6e01e6b3f86..fad3e0c7b932 100644
--- a/include/sound/asound.h
+++ b/include/sound/asound.h
@@ -126,12 +126,10 @@ struct snd_hwdep_dsp_image {
 	unsigned long driver_data;	/* W: driver-specific data */
 };
 
-enum {
-	SNDRV_HWDEP_IOCTL_PVERSION = _IOR ('H', 0x00, int),
-	SNDRV_HWDEP_IOCTL_INFO = _IOR ('H', 0x01, struct snd_hwdep_info),
-	SNDRV_HWDEP_IOCTL_DSP_STATUS = _IOR('H', 0x02, struct snd_hwdep_dsp_status),
-	SNDRV_HWDEP_IOCTL_DSP_LOAD   = _IOW('H', 0x03, struct snd_hwdep_dsp_image)
-};
+#define SNDRV_HWDEP_IOCTL_PVERSION	_IOR ('H', 0x00, int)
+#define SNDRV_HWDEP_IOCTL_INFO		_IOR ('H', 0x01, struct snd_hwdep_info)
+#define SNDRV_HWDEP_IOCTL_DSP_STATUS	_IOR('H', 0x02, struct snd_hwdep_dsp_status)
+#define SNDRV_HWDEP_IOCTL_DSP_LOAD	_IOW('H', 0x03, struct snd_hwdep_dsp_image)
 
 /*****************************************************************************
  *                                                                           *
@@ -451,40 +449,35 @@ enum {
 	SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
 };
 
-enum {
-	SNDRV_PCM_IOCTL_PVERSION = _IOR('A', 0x00, int),
-	SNDRV_PCM_IOCTL_INFO = _IOR('A', 0x01, struct snd_pcm_info),
-	SNDRV_PCM_IOCTL_TSTAMP = _IOW('A', 0x02, int),
-	SNDRV_PCM_IOCTL_TTSTAMP = _IOW('A', 0x03, int),
-	SNDRV_PCM_IOCTL_HW_REFINE = _IOWR('A', 0x10, struct snd_pcm_hw_params),
-	SNDRV_PCM_IOCTL_HW_PARAMS = _IOWR('A', 0x11, struct snd_pcm_hw_params),
-	SNDRV_PCM_IOCTL_HW_FREE = _IO('A', 0x12),
-	SNDRV_PCM_IOCTL_SW_PARAMS = _IOWR('A', 0x13, struct snd_pcm_sw_params),
-	SNDRV_PCM_IOCTL_STATUS = _IOR('A', 0x20, struct snd_pcm_status),
-	SNDRV_PCM_IOCTL_DELAY = _IOR('A', 0x21, snd_pcm_sframes_t),
-	SNDRV_PCM_IOCTL_HWSYNC = _IO('A', 0x22),
-	SNDRV_PCM_IOCTL_SYNC_PTR = _IOWR('A', 0x23, struct snd_pcm_sync_ptr),
-	SNDRV_PCM_IOCTL_CHANNEL_INFO = _IOR('A', 0x32, struct snd_pcm_channel_info),
-	SNDRV_PCM_IOCTL_PREPARE = _IO('A', 0x40),
-	SNDRV_PCM_IOCTL_RESET = _IO('A', 0x41),
-	SNDRV_PCM_IOCTL_START = _IO('A', 0x42),
-	SNDRV_PCM_IOCTL_DROP = _IO('A', 0x43),
-	SNDRV_PCM_IOCTL_DRAIN = _IO('A', 0x44),
-	SNDRV_PCM_IOCTL_PAUSE = _IOW('A', 0x45, int),
-	SNDRV_PCM_IOCTL_REWIND = _IOW('A', 0x46, snd_pcm_uframes_t),
-	SNDRV_PCM_IOCTL_RESUME = _IO('A', 0x47),
-	SNDRV_PCM_IOCTL_XRUN = _IO('A', 0x48),
-	SNDRV_PCM_IOCTL_FORWARD = _IOW('A', 0x49, snd_pcm_uframes_t),
-	SNDRV_PCM_IOCTL_WRITEI_FRAMES = _IOW('A', 0x50, struct snd_xferi),
-	SNDRV_PCM_IOCTL_READI_FRAMES = _IOR('A', 0x51, struct snd_xferi),
-	SNDRV_PCM_IOCTL_WRITEN_FRAMES = _IOW('A', 0x52, struct snd_xfern),
-	SNDRV_PCM_IOCTL_READN_FRAMES = _IOR('A', 0x53, struct snd_xfern),
-	SNDRV_PCM_IOCTL_LINK = _IOW('A', 0x60, int),
-	SNDRV_PCM_IOCTL_UNLINK = _IO('A', 0x61),
-};
-
-/* Trick to make alsa-lib/acinclude.m4 happy */
-#define SNDRV_PCM_IOCTL_REWIND SNDRV_PCM_IOCTL_REWIND
+#define SNDRV_PCM_IOCTL_PVERSION	_IOR('A', 0x00, int)
+#define SNDRV_PCM_IOCTL_INFO		_IOR('A', 0x01, struct snd_pcm_info)
+#define SNDRV_PCM_IOCTL_TSTAMP		_IOW('A', 0x02, int)
+#define SNDRV_PCM_IOCTL_TTSTAMP		_IOW('A', 0x03, int)
+#define SNDRV_PCM_IOCTL_HW_REFINE	_IOWR('A', 0x10, struct snd_pcm_hw_params)
+#define SNDRV_PCM_IOCTL_HW_PARAMS	_IOWR('A', 0x11, struct snd_pcm_hw_params)
+#define SNDRV_PCM_IOCTL_HW_FREE		_IO('A', 0x12)
+#define SNDRV_PCM_IOCTL_SW_PARAMS	_IOWR('A', 0x13, struct snd_pcm_sw_params)
+#define SNDRV_PCM_IOCTL_STATUS		_IOR('A', 0x20, struct snd_pcm_status)
+#define SNDRV_PCM_IOCTL_DELAY		_IOR('A', 0x21, snd_pcm_sframes_t)
+#define SNDRV_PCM_IOCTL_HWSYNC		_IO('A', 0x22)
+#define SNDRV_PCM_IOCTL_SYNC_PTR	_IOWR('A', 0x23, struct snd_pcm_sync_ptr)
+#define SNDRV_PCM_IOCTL_CHANNEL_INFO	_IOR('A', 0x32, struct snd_pcm_channel_info)
+#define SNDRV_PCM_IOCTL_PREPARE		_IO('A', 0x40)
+#define SNDRV_PCM_IOCTL_RESET		_IO('A', 0x41)
+#define SNDRV_PCM_IOCTL_START		_IO('A', 0x42)
+#define SNDRV_PCM_IOCTL_DROP		_IO('A', 0x43)
+#define SNDRV_PCM_IOCTL_DRAIN		_IO('A', 0x44)
+#define SNDRV_PCM_IOCTL_PAUSE		_IOW('A', 0x45, int)
+#define SNDRV_PCM_IOCTL_REWIND		_IOW('A', 0x46, snd_pcm_uframes_t)
+#define SNDRV_PCM_IOCTL_RESUME		_IO('A', 0x47)
+#define SNDRV_PCM_IOCTL_XRUN		_IO('A', 0x48)
+#define SNDRV_PCM_IOCTL_FORWARD		_IOW('A', 0x49, snd_pcm_uframes_t)
+#define SNDRV_PCM_IOCTL_WRITEI_FRAMES	_IOW('A', 0x50, struct snd_xferi)
+#define SNDRV_PCM_IOCTL_READI_FRAMES	_IOR('A', 0x51, struct snd_xferi)
+#define SNDRV_PCM_IOCTL_WRITEN_FRAMES	_IOW('A', 0x52, struct snd_xfern)
+#define SNDRV_PCM_IOCTL_READN_FRAMES	_IOR('A', 0x53, struct snd_xfern)
+#define SNDRV_PCM_IOCTL_LINK		_IOW('A', 0x60, int)
+#define SNDRV_PCM_IOCTL_UNLINK		_IO('A', 0x61)
 
 /*****************************************************************************
  *                                                                           *
@@ -538,14 +531,12 @@ struct snd_rawmidi_status {
 	unsigned char reserved[16];	/* reserved for future use */
 };
 
-enum {
-	SNDRV_RAWMIDI_IOCTL_PVERSION = _IOR('W', 0x00, int),
-	SNDRV_RAWMIDI_IOCTL_INFO = _IOR('W', 0x01, struct snd_rawmidi_info),
-	SNDRV_RAWMIDI_IOCTL_PARAMS = _IOWR('W', 0x10, struct snd_rawmidi_params),
-	SNDRV_RAWMIDI_IOCTL_STATUS = _IOWR('W', 0x20, struct snd_rawmidi_status),
-	SNDRV_RAWMIDI_IOCTL_DROP = _IOW('W', 0x30, int),
-	SNDRV_RAWMIDI_IOCTL_DRAIN = _IOW('W', 0x31, int),
-};
+#define SNDRV_RAWMIDI_IOCTL_PVERSION	_IOR('W', 0x00, int)
+#define SNDRV_RAWMIDI_IOCTL_INFO	_IOR('W', 0x01, struct snd_rawmidi_info)
+#define SNDRV_RAWMIDI_IOCTL_PARAMS	_IOWR('W', 0x10, struct snd_rawmidi_params)
+#define SNDRV_RAWMIDI_IOCTL_STATUS	_IOWR('W', 0x20, struct snd_rawmidi_status)
+#define SNDRV_RAWMIDI_IOCTL_DROP	_IOW('W', 0x30, int)
+#define SNDRV_RAWMIDI_IOCTL_DRAIN	_IOW('W', 0x31, int)
 
 /*
  *  Timer section - /dev/snd/timer
@@ -654,23 +645,21 @@ struct snd_timer_status {
 	unsigned char reserved[64];	/* reserved */
 };
 
-enum {
-	SNDRV_TIMER_IOCTL_PVERSION = _IOR('T', 0x00, int),
-	SNDRV_TIMER_IOCTL_NEXT_DEVICE = _IOWR('T', 0x01, struct snd_timer_id),
-	SNDRV_TIMER_IOCTL_TREAD = _IOW('T', 0x02, int),
-	SNDRV_TIMER_IOCTL_GINFO = _IOWR('T', 0x03, struct snd_timer_ginfo),
-	SNDRV_TIMER_IOCTL_GPARAMS = _IOW('T', 0x04, struct snd_timer_gparams),
-	SNDRV_TIMER_IOCTL_GSTATUS = _IOWR('T', 0x05, struct snd_timer_gstatus),
-	SNDRV_TIMER_IOCTL_SELECT = _IOW('T', 0x10, struct snd_timer_select),
-	SNDRV_TIMER_IOCTL_INFO = _IOR('T', 0x11, struct snd_timer_info),
-	SNDRV_TIMER_IOCTL_PARAMS = _IOW('T', 0x12, struct snd_timer_params),
-	SNDRV_TIMER_IOCTL_STATUS = _IOR('T', 0x14, struct snd_timer_status),
-	/* The following four ioctls are changed since 1.0.9 due to confliction */
-	SNDRV_TIMER_IOCTL_START = _IO('T', 0xa0),
-	SNDRV_TIMER_IOCTL_STOP = _IO('T', 0xa1),
-	SNDRV_TIMER_IOCTL_CONTINUE = _IO('T', 0xa2),
-	SNDRV_TIMER_IOCTL_PAUSE = _IO('T', 0xa3),
-};
+#define SNDRV_TIMER_IOCTL_PVERSION	_IOR('T', 0x00, int)
+#define SNDRV_TIMER_IOCTL_NEXT_DEVICE	_IOWR('T', 0x01, struct snd_timer_id)
+#define SNDRV_TIMER_IOCTL_TREAD		_IOW('T', 0x02, int)
+#define SNDRV_TIMER_IOCTL_GINFO		_IOWR('T', 0x03, struct snd_timer_ginfo)
+#define SNDRV_TIMER_IOCTL_GPARAMS	_IOW('T', 0x04, struct snd_timer_gparams)
+#define SNDRV_TIMER_IOCTL_GSTATUS	_IOWR('T', 0x05, struct snd_timer_gstatus)
+#define SNDRV_TIMER_IOCTL_SELECT	_IOW('T', 0x10, struct snd_timer_select)
+#define SNDRV_TIMER_IOCTL_INFO		_IOR('T', 0x11, struct snd_timer_info)
+#define SNDRV_TIMER_IOCTL_PARAMS	_IOW('T', 0x12, struct snd_timer_params)
+#define SNDRV_TIMER_IOCTL_STATUS	_IOR('T', 0x14, struct snd_timer_status)
+/* The following four ioctls are changed since 1.0.9 due to confliction */
+#define SNDRV_TIMER_IOCTL_START		_IO('T', 0xa0)
+#define SNDRV_TIMER_IOCTL_STOP		_IO('T', 0xa1)
+#define SNDRV_TIMER_IOCTL_CONTINUE	_IO('T', 0xa2)
+#define SNDRV_TIMER_IOCTL_PAUSE		_IO('T', 0xa3)
 
 struct snd_timer_read {
 	unsigned int resolution;
@@ -847,33 +836,31 @@ struct snd_ctl_tlv {
         unsigned int tlv[0];	/* first TLV */
 };
 
-enum {
-	SNDRV_CTL_IOCTL_PVERSION = _IOR('U', 0x00, int),
-	SNDRV_CTL_IOCTL_CARD_INFO = _IOR('U', 0x01, struct snd_ctl_card_info),
-	SNDRV_CTL_IOCTL_ELEM_LIST = _IOWR('U', 0x10, struct snd_ctl_elem_list),
-	SNDRV_CTL_IOCTL_ELEM_INFO = _IOWR('U', 0x11, struct snd_ctl_elem_info),
-	SNDRV_CTL_IOCTL_ELEM_READ = _IOWR('U', 0x12, struct snd_ctl_elem_value),
-	SNDRV_CTL_IOCTL_ELEM_WRITE = _IOWR('U', 0x13, struct snd_ctl_elem_value),
-	SNDRV_CTL_IOCTL_ELEM_LOCK = _IOW('U', 0x14, struct snd_ctl_elem_id),
-	SNDRV_CTL_IOCTL_ELEM_UNLOCK = _IOW('U', 0x15, struct snd_ctl_elem_id),
-	SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS = _IOWR('U', 0x16, int),
-	SNDRV_CTL_IOCTL_ELEM_ADD = _IOWR('U', 0x17, struct snd_ctl_elem_info),
-	SNDRV_CTL_IOCTL_ELEM_REPLACE = _IOWR('U', 0x18, struct snd_ctl_elem_info),
-	SNDRV_CTL_IOCTL_ELEM_REMOVE = _IOWR('U', 0x19, struct snd_ctl_elem_id),
-	SNDRV_CTL_IOCTL_TLV_READ = _IOWR('U', 0x1a, struct snd_ctl_tlv),
-	SNDRV_CTL_IOCTL_TLV_WRITE = _IOWR('U', 0x1b, struct snd_ctl_tlv),
-	SNDRV_CTL_IOCTL_TLV_COMMAND = _IOWR('U', 0x1c, struct snd_ctl_tlv),
-	SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE = _IOWR('U', 0x20, int),
-	SNDRV_CTL_IOCTL_HWDEP_INFO = _IOR('U', 0x21, struct snd_hwdep_info),
-	SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE = _IOR('U', 0x30, int),
-	SNDRV_CTL_IOCTL_PCM_INFO = _IOWR('U', 0x31, struct snd_pcm_info),
-	SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE = _IOW('U', 0x32, int),
-	SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE = _IOWR('U', 0x40, int),
-	SNDRV_CTL_IOCTL_RAWMIDI_INFO = _IOWR('U', 0x41, struct snd_rawmidi_info),
-	SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE = _IOW('U', 0x42, int),
-	SNDRV_CTL_IOCTL_POWER = _IOWR('U', 0xd0, int),
-	SNDRV_CTL_IOCTL_POWER_STATE = _IOR('U', 0xd1, int),
-};
+#define SNDRV_CTL_IOCTL_PVERSION	_IOR('U', 0x00, int)
+#define SNDRV_CTL_IOCTL_CARD_INFO	_IOR('U', 0x01, struct snd_ctl_card_info)
+#define SNDRV_CTL_IOCTL_ELEM_LIST	_IOWR('U', 0x10, struct snd_ctl_elem_list)
+#define SNDRV_CTL_IOCTL_ELEM_INFO	_IOWR('U', 0x11, struct snd_ctl_elem_info)
+#define SNDRV_CTL_IOCTL_ELEM_READ	_IOWR('U', 0x12, struct snd_ctl_elem_value)
+#define SNDRV_CTL_IOCTL_ELEM_WRITE	_IOWR('U', 0x13, struct snd_ctl_elem_value)
+#define SNDRV_CTL_IOCTL_ELEM_LOCK	_IOW('U', 0x14, struct snd_ctl_elem_id)
+#define SNDRV_CTL_IOCTL_ELEM_UNLOCK	_IOW('U', 0x15, struct snd_ctl_elem_id)
+#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
+#define SNDRV_CTL_IOCTL_ELEM_ADD	_IOWR('U', 0x17, struct snd_ctl_elem_info)
+#define SNDRV_CTL_IOCTL_ELEM_REPLACE	_IOWR('U', 0x18, struct snd_ctl_elem_info)
+#define SNDRV_CTL_IOCTL_ELEM_REMOVE	_IOWR('U', 0x19, struct snd_ctl_elem_id)
+#define SNDRV_CTL_IOCTL_TLV_READ	_IOWR('U', 0x1a, struct snd_ctl_tlv)
+#define SNDRV_CTL_IOCTL_TLV_WRITE	_IOWR('U', 0x1b, struct snd_ctl_tlv)
+#define SNDRV_CTL_IOCTL_TLV_COMMAND	_IOWR('U', 0x1c, struct snd_ctl_tlv)
+#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
+#define SNDRV_CTL_IOCTL_HWDEP_INFO	_IOR('U', 0x21, struct snd_hwdep_info)
+#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE	_IOR('U', 0x30, int)
+#define SNDRV_CTL_IOCTL_PCM_INFO	_IOWR('U', 0x31, struct snd_pcm_info)
+#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
+#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
+#define SNDRV_CTL_IOCTL_RAWMIDI_INFO	_IOWR('U', 0x41, struct snd_rawmidi_info)
+#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
+#define SNDRV_CTL_IOCTL_POWER		_IOWR('U', 0xd0, int)
+#define SNDRV_CTL_IOCTL_POWER_STATE	_IOR('U', 0xd1, int)
 
 /*
  *  Read interface.
diff --git a/include/sound/sfnt_info.h b/include/sound/sfnt_info.h
index 5d1ab9c4950f..1bce7fd1725f 100644
--- a/include/sound/sfnt_info.h
+++ b/include/sound/sfnt_info.h
@@ -202,13 +202,11 @@ struct snd_emux_misc_mode {
 	int value2;	/* reserved */
 };
 
-enum {
-	SNDRV_EMUX_IOCTL_VERSION = _IOR('H', 0x80, unsigned int),
-	SNDRV_EMUX_IOCTL_LOAD_PATCH = _IOWR('H', 0x81, struct soundfont_patch_info),
-	SNDRV_EMUX_IOCTL_RESET_SAMPLES = _IO('H', 0x82),
-	SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES = _IO('H', 0x83),
-	SNDRV_EMUX_IOCTL_MEM_AVAIL = _IOW('H', 0x84, int),
-	SNDRV_EMUX_IOCTL_MISC_MODE = _IOWR('H', 0x84, struct snd_emux_misc_mode),
-};
+#define SNDRV_EMUX_IOCTL_VERSION	_IOR('H', 0x80, unsigned int)
+#define SNDRV_EMUX_IOCTL_LOAD_PATCH	_IOWR('H', 0x81, struct soundfont_patch_info)
+#define SNDRV_EMUX_IOCTL_RESET_SAMPLES	_IO('H', 0x82)
+#define SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES _IO('H', 0x83)
+#define SNDRV_EMUX_IOCTL_MEM_AVAIL	_IOW('H', 0x84, int)
+#define SNDRV_EMUX_IOCTL_MISC_MODE	_IOWR('H', 0x84, struct snd_emux_misc_mode)
 
 #endif /* __SOUND_SFNT_INFO_H */
-- 
cgit v1.2.3


From aaf1e176fa9a96fe1eea33b710684bba066aedc1 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Tue, 10 Mar 2009 10:55:15 +0000
Subject: ASoC: Add initial driver for the WM8400 CODEC

The WM8400 is a highly integrated audio CODEC and power management unit
intended for mobile multimedia application.  This driver supports the
primary audio CODEC features, including:

 - 1W speaker driver
 - Fully differential headphone output
 - Up to 4 differential microphone inputs

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/linux/mfd/wm8400-audio.h |    1 +
 sound/soc/codecs/Kconfig         |    4 +
 sound/soc/codecs/Makefile        |    2 +
 sound/soc/codecs/wm8400.c        | 1479 ++++++++++++++++++++++++++++++++++++++
 sound/soc/codecs/wm8400.h        |   62 ++
 5 files changed, 1548 insertions(+)
 create mode 100644 sound/soc/codecs/wm8400.c
 create mode 100644 sound/soc/codecs/wm8400.h

(limited to 'include')

diff --git a/include/linux/mfd/wm8400-audio.h b/include/linux/mfd/wm8400-audio.h
index b6640e018046..e06ed3eb1d0a 100644
--- a/include/linux/mfd/wm8400-audio.h
+++ b/include/linux/mfd/wm8400-audio.h
@@ -1181,6 +1181,7 @@
 #define WM8400_FLL_OUTDIV_SHIFT                      0  /* FLL_OUTDIV - [2:0] */
 #define WM8400_FLL_OUTDIV_WIDTH                      3  /* FLL_OUTDIV - [2:0] */
 
+struct wm8400;
 void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400);
 
 #endif
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index a1af311e7f06..b6c7f7a01cb0 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -26,6 +26,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_UDA134X
 	select SND_SOC_UDA1380 if I2C
 	select SND_SOC_WM8350 if MFD_WM8350
+	select SND_SOC_WM8400 if MFD_WM8400
 	select SND_SOC_WM8510 if SND_SOC_I2C_AND_SPI
 	select SND_SOC_WM8580 if I2C
 	select SND_SOC_WM8728 if SND_SOC_I2C_AND_SPI
@@ -110,6 +111,9 @@ config SND_SOC_UDA1380
 config SND_SOC_WM8350
 	tristate
 
+config SND_SOC_WM8400
+	tristate
+
 config SND_SOC_WM8510
 	tristate
 
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 4717c3c99040..030d2454725f 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -14,6 +14,7 @@ snd-soc-twl4030-objs := twl4030.o
 snd-soc-uda134x-objs := uda134x.o
 snd-soc-uda1380-objs := uda1380.o
 snd-soc-wm8350-objs := wm8350.o
+snd-soc-wm8400-objs := wm8400.o
 snd-soc-wm8510-objs := wm8510.o
 snd-soc-wm8580-objs := wm8580.o
 snd-soc-wm8728-objs := wm8728.o
@@ -44,6 +45,7 @@ obj-$(CONFIG_SND_SOC_TWL4030)	+= snd-soc-twl4030.o
 obj-$(CONFIG_SND_SOC_UDA134X)	+= snd-soc-uda134x.o
 obj-$(CONFIG_SND_SOC_UDA1380)	+= snd-soc-uda1380.o
 obj-$(CONFIG_SND_SOC_WM8350)	+= snd-soc-wm8350.o
+obj-$(CONFIG_SND_SOC_WM8400)	+= snd-soc-wm8400.o
 obj-$(CONFIG_SND_SOC_WM8510)	+= snd-soc-wm8510.o
 obj-$(CONFIG_SND_SOC_WM8580)	+= snd-soc-wm8580.o
 obj-$(CONFIG_SND_SOC_WM8728)	+= snd-soc-wm8728.o
diff --git a/sound/soc/codecs/wm8400.c b/sound/soc/codecs/wm8400.c
new file mode 100644
index 000000000000..9cb73d9d023d
--- /dev/null
+++ b/sound/soc/codecs/wm8400.c
@@ -0,0 +1,1479 @@
+/*
+ * wm8400.c  --  WM8400 ALSA Soc Audio driver
+ *
+ * Copyright 2008, 2009 Wolfson Microelectronics PLC.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ *  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.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/mfd/wm8400-audio.h>
+#include <linux/mfd/wm8400-private.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "wm8400.h"
+
+/* Fake register for internal state */
+#define WM8400_INTDRIVBITS      (WM8400_REGISTER_COUNT + 1)
+#define WM8400_INMIXL_PWR			0
+#define WM8400_AINLMUX_PWR			1
+#define WM8400_INMIXR_PWR			2
+#define WM8400_AINRMUX_PWR			3
+
+static struct regulator_bulk_data power[] = {
+	{
+		.supply = "I2S1VDD",
+	},
+	{
+		.supply = "I2S2VDD",
+	},
+	{
+		.supply = "DCVDD",
+	},
+	{
+		.supply = "FLLVDD",
+	},
+	{
+		.supply = "HPVDD",
+	},
+	{
+		.supply = "SPKVDD",
+	},
+};
+
+/* codec private data */
+struct wm8400_priv {
+	struct snd_soc_codec codec;
+	struct wm8400 *wm8400;
+	u16 fake_register;
+	unsigned int sysclk;
+	unsigned int pcmclk;
+	struct work_struct work;
+};
+
+static inline unsigned int wm8400_read(struct snd_soc_codec *codec,
+				       unsigned int reg)
+{
+	struct wm8400_priv *wm8400 = codec->private_data;
+
+	if (reg == WM8400_INTDRIVBITS)
+		return wm8400->fake_register;
+	else
+		return wm8400_reg_read(wm8400->wm8400, reg);
+}
+
+/*
+ * write to the wm8400 register space
+ */
+static int wm8400_write(struct snd_soc_codec *codec, unsigned int reg,
+	unsigned int value)
+{
+	struct wm8400_priv *wm8400 = codec->private_data;
+
+	if (reg == WM8400_INTDRIVBITS) {
+		wm8400->fake_register = value;
+		return 0;
+	} else
+		return wm8400_set_bits(wm8400->wm8400, reg, 0xffff, value);
+}
+
+static void wm8400_codec_reset(struct snd_soc_codec *codec)
+{
+	struct wm8400_priv *wm8400 = codec->private_data;
+
+	wm8400_reset_codec_reg_cache(wm8400->wm8400);
+}
+
+static const DECLARE_TLV_DB_LINEAR(rec_mix_tlv, -1500, 600);
+
+static const DECLARE_TLV_DB_LINEAR(in_pga_tlv, -1650, 3000);
+
+static const DECLARE_TLV_DB_LINEAR(out_mix_tlv, -2100, 0);
+
+static const DECLARE_TLV_DB_LINEAR(out_pga_tlv, -7300, 600);
+
+static const DECLARE_TLV_DB_LINEAR(out_omix_tlv, -600, 0);
+
+static const DECLARE_TLV_DB_LINEAR(out_dac_tlv, -7163, 0);
+
+static const DECLARE_TLV_DB_LINEAR(in_adc_tlv, -7163, 1763);
+
+static const DECLARE_TLV_DB_LINEAR(out_sidetone_tlv, -3600, 0);
+
+static int wm8400_outpga_put_volsw_vu(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	int reg = mc->reg;
+        int ret;
+        u16 val;
+
+        ret = snd_soc_put_volsw(kcontrol, ucontrol);
+        if (ret < 0)
+                return ret;
+
+        /* now hit the volume update bits (always bit 8) */
+        val = wm8400_read(codec, reg);
+        return wm8400_write(codec, reg, val | 0x0100);
+}
+
+#define WM8400_OUTPGA_SINGLE_R_TLV(xname, reg, shift, max, invert, tlv_array) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
+	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
+		SNDRV_CTL_ELEM_ACCESS_READWRITE,\
+	.tlv.p = (tlv_array), \
+	.info = snd_soc_info_volsw, \
+	.get = snd_soc_get_volsw, .put = wm8400_outpga_put_volsw_vu, \
+	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
+
+
+static const char *wm8400_digital_sidetone[] =
+	{"None", "Left ADC", "Right ADC", "Reserved"};
+
+static const struct soc_enum wm8400_left_digital_sidetone_enum =
+SOC_ENUM_SINGLE(WM8400_DIGITAL_SIDE_TONE,
+		WM8400_ADC_TO_DACL_SHIFT, 2, wm8400_digital_sidetone);
+
+static const struct soc_enum wm8400_right_digital_sidetone_enum =
+SOC_ENUM_SINGLE(WM8400_DIGITAL_SIDE_TONE,
+		WM8400_ADC_TO_DACR_SHIFT, 2, wm8400_digital_sidetone);
+
+static const char *wm8400_adcmode[] =
+	{"Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"};
+
+static const struct soc_enum wm8400_right_adcmode_enum =
+SOC_ENUM_SINGLE(WM8400_ADC_CTRL, WM8400_ADC_HPF_CUT_SHIFT, 3, wm8400_adcmode);
+
+static const struct snd_kcontrol_new wm8400_snd_controls[] = {
+/* INMIXL */
+SOC_SINGLE("LIN12 PGA Boost", WM8400_INPUT_MIXER3, WM8400_L12MNBST_SHIFT,
+	   1, 0),
+SOC_SINGLE("LIN34 PGA Boost", WM8400_INPUT_MIXER3, WM8400_L34MNBST_SHIFT,
+	   1, 0),
+/* INMIXR */
+SOC_SINGLE("RIN12 PGA Boost", WM8400_INPUT_MIXER3, WM8400_R12MNBST_SHIFT,
+	   1, 0),
+SOC_SINGLE("RIN34 PGA Boost", WM8400_INPUT_MIXER3, WM8400_R34MNBST_SHIFT,
+	   1, 0),
+
+/* LOMIX */
+SOC_SINGLE_TLV("LOMIX LIN3 Bypass Volume", WM8400_OUTPUT_MIXER3,
+	WM8400_LLI3LOVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("LOMIX RIN12 PGA Bypass Volume", WM8400_OUTPUT_MIXER3,
+	WM8400_LR12LOVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("LOMIX LIN12 PGA Bypass Volume", WM8400_OUTPUT_MIXER3,
+	WM8400_LL12LOVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("LOMIX RIN3 Bypass Volume", WM8400_OUTPUT_MIXER5,
+	WM8400_LRI3LOVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("LOMIX AINRMUX Bypass Volume", WM8400_OUTPUT_MIXER5,
+	WM8400_LRBLOVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("LOMIX AINLMUX Bypass Volume", WM8400_OUTPUT_MIXER5,
+	WM8400_LRBLOVOL_SHIFT, 7, 0, out_mix_tlv),
+
+/* ROMIX */
+SOC_SINGLE_TLV("ROMIX RIN3 Bypass Volume", WM8400_OUTPUT_MIXER4,
+	WM8400_RRI3ROVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("ROMIX LIN12 PGA Bypass Volume", WM8400_OUTPUT_MIXER4,
+	WM8400_RL12ROVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("ROMIX RIN12 PGA Bypass Volume", WM8400_OUTPUT_MIXER4,
+	WM8400_RR12ROVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("ROMIX LIN3 Bypass Volume", WM8400_OUTPUT_MIXER6,
+	WM8400_RLI3ROVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("ROMIX AINLMUX Bypass Volume", WM8400_OUTPUT_MIXER6,
+	WM8400_RLBROVOL_SHIFT, 7, 0, out_mix_tlv),
+SOC_SINGLE_TLV("ROMIX AINRMUX Bypass Volume", WM8400_OUTPUT_MIXER6,
+	WM8400_RRBROVOL_SHIFT, 7, 0, out_mix_tlv),
+
+/* LOUT */
+WM8400_OUTPGA_SINGLE_R_TLV("LOUT Volume", WM8400_LEFT_OUTPUT_VOLUME,
+	WM8400_LOUTVOL_SHIFT, WM8400_LOUTVOL_MASK, 0, out_pga_tlv),
+SOC_SINGLE("LOUT ZC", WM8400_LEFT_OUTPUT_VOLUME, WM8400_LOZC_SHIFT, 1, 0),
+
+/* ROUT */
+WM8400_OUTPGA_SINGLE_R_TLV("ROUT Volume", WM8400_RIGHT_OUTPUT_VOLUME,
+	WM8400_ROUTVOL_SHIFT, WM8400_ROUTVOL_MASK, 0, out_pga_tlv),
+SOC_SINGLE("ROUT ZC", WM8400_RIGHT_OUTPUT_VOLUME, WM8400_ROZC_SHIFT, 1, 0),
+
+/* LOPGA */
+WM8400_OUTPGA_SINGLE_R_TLV("LOPGA Volume", WM8400_LEFT_OPGA_VOLUME,
+	WM8400_LOPGAVOL_SHIFT, WM8400_LOPGAVOL_MASK, 0, out_pga_tlv),
+SOC_SINGLE("LOPGA ZC Switch", WM8400_LEFT_OPGA_VOLUME,
+	WM8400_LOPGAZC_SHIFT, 1, 0),
+
+/* ROPGA */
+WM8400_OUTPGA_SINGLE_R_TLV("ROPGA Volume", WM8400_RIGHT_OPGA_VOLUME,
+	WM8400_ROPGAVOL_SHIFT, WM8400_ROPGAVOL_MASK, 0, out_pga_tlv),
+SOC_SINGLE("ROPGA ZC Switch", WM8400_RIGHT_OPGA_VOLUME,
+	WM8400_ROPGAZC_SHIFT, 1, 0),
+
+SOC_SINGLE("LON Mute Switch", WM8400_LINE_OUTPUTS_VOLUME,
+	WM8400_LONMUTE_SHIFT, 1, 0),
+SOC_SINGLE("LOP Mute Switch", WM8400_LINE_OUTPUTS_VOLUME,
+	WM8400_LOPMUTE_SHIFT, 1, 0),
+SOC_SINGLE("LOP Attenuation Switch", WM8400_LINE_OUTPUTS_VOLUME,
+	WM8400_LOATTN_SHIFT, 1, 0),
+SOC_SINGLE("RON Mute Switch", WM8400_LINE_OUTPUTS_VOLUME,
+	WM8400_RONMUTE_SHIFT, 1, 0),
+SOC_SINGLE("ROP Mute Switch", WM8400_LINE_OUTPUTS_VOLUME,
+	WM8400_ROPMUTE_SHIFT, 1, 0),
+SOC_SINGLE("ROP Attenuation Switch", WM8400_LINE_OUTPUTS_VOLUME,
+	WM8400_ROATTN_SHIFT, 1, 0),
+
+SOC_SINGLE("OUT3 Mute Switch", WM8400_OUT3_4_VOLUME,
+	WM8400_OUT3MUTE_SHIFT, 1, 0),
+SOC_SINGLE("OUT3 Attenuation Switch", WM8400_OUT3_4_VOLUME,
+	WM8400_OUT3ATTN_SHIFT, 1, 0),
+
+SOC_SINGLE("OUT4 Mute Switch", WM8400_OUT3_4_VOLUME,
+	WM8400_OUT4MUTE_SHIFT, 1, 0),
+SOC_SINGLE("OUT4 Attenuation Switch", WM8400_OUT3_4_VOLUME,
+	WM8400_OUT4ATTN_SHIFT, 1, 0),
+
+SOC_SINGLE("Speaker Mode Switch", WM8400_CLASSD1,
+	WM8400_CDMODE_SHIFT, 1, 0),
+
+SOC_SINGLE("Speaker Output Attenuation Volume", WM8400_SPEAKER_VOLUME,
+	WM8400_SPKATTN_SHIFT, WM8400_SPKATTN_MASK, 0),
+SOC_SINGLE("Speaker DC Boost Volume", WM8400_CLASSD3,
+	WM8400_DCGAIN_SHIFT, 6, 0),
+SOC_SINGLE("Speaker AC Boost Volume", WM8400_CLASSD3,
+	WM8400_ACGAIN_SHIFT, 6, 0),
+
+WM8400_OUTPGA_SINGLE_R_TLV("Left DAC Digital Volume",
+	WM8400_LEFT_DAC_DIGITAL_VOLUME, WM8400_DACL_VOL_SHIFT,
+	127, 0, out_dac_tlv),
+
+WM8400_OUTPGA_SINGLE_R_TLV("Right DAC Digital Volume",
+	WM8400_RIGHT_DAC_DIGITAL_VOLUME, WM8400_DACR_VOL_SHIFT,
+	127, 0, out_dac_tlv),
+
+SOC_ENUM("Left Digital Sidetone", wm8400_left_digital_sidetone_enum),
+SOC_ENUM("Right Digital Sidetone", wm8400_right_digital_sidetone_enum),
+
+SOC_SINGLE_TLV("Left Digital Sidetone Volume", WM8400_DIGITAL_SIDE_TONE,
+	WM8400_ADCL_DAC_SVOL_SHIFT, 15, 0, out_sidetone_tlv),
+SOC_SINGLE_TLV("Right Digital Sidetone Volume", WM8400_DIGITAL_SIDE_TONE,
+	WM8400_ADCR_DAC_SVOL_SHIFT, 15, 0, out_sidetone_tlv),
+
+SOC_SINGLE("ADC Digital High Pass Filter Switch", WM8400_ADC_CTRL,
+	WM8400_ADC_HPF_ENA_SHIFT, 1, 0),
+
+SOC_ENUM("ADC HPF Mode", wm8400_right_adcmode_enum),
+
+WM8400_OUTPGA_SINGLE_R_TLV("Left ADC Digital Volume",
+	WM8400_LEFT_ADC_DIGITAL_VOLUME,
+	WM8400_ADCL_VOL_SHIFT,
+	WM8400_ADCL_VOL_MASK,
+	0,
+	in_adc_tlv),
+
+WM8400_OUTPGA_SINGLE_R_TLV("Right ADC Digital Volume",
+	WM8400_RIGHT_ADC_DIGITAL_VOLUME,
+	WM8400_ADCR_VOL_SHIFT,
+	WM8400_ADCR_VOL_MASK,
+	0,
+	in_adc_tlv),
+
+WM8400_OUTPGA_SINGLE_R_TLV("LIN12 Volume",
+	WM8400_LEFT_LINE_INPUT_1_2_VOLUME,
+	WM8400_LIN12VOL_SHIFT,
+	WM8400_LIN12VOL_MASK,
+	0,
+	in_pga_tlv),
+
+SOC_SINGLE("LIN12 ZC Switch", WM8400_LEFT_LINE_INPUT_1_2_VOLUME,
+	WM8400_LI12ZC_SHIFT, 1, 0),
+
+SOC_SINGLE("LIN12 Mute Switch", WM8400_LEFT_LINE_INPUT_1_2_VOLUME,
+	WM8400_LI12MUTE_SHIFT, 1, 0),
+
+WM8400_OUTPGA_SINGLE_R_TLV("LIN34 Volume",
+	WM8400_LEFT_LINE_INPUT_3_4_VOLUME,
+	WM8400_LIN34VOL_SHIFT,
+	WM8400_LIN34VOL_MASK,
+	0,
+	in_pga_tlv),
+
+SOC_SINGLE("LIN34 ZC Switch", WM8400_LEFT_LINE_INPUT_3_4_VOLUME,
+	WM8400_LI34ZC_SHIFT, 1, 0),
+
+SOC_SINGLE("LIN34 Mute Switch", WM8400_LEFT_LINE_INPUT_3_4_VOLUME,
+	WM8400_LI34MUTE_SHIFT, 1, 0),
+
+WM8400_OUTPGA_SINGLE_R_TLV("RIN12 Volume",
+	WM8400_RIGHT_LINE_INPUT_1_2_VOLUME,
+	WM8400_RIN12VOL_SHIFT,
+	WM8400_RIN12VOL_MASK,
+	0,
+	in_pga_tlv),
+
+SOC_SINGLE("RIN12 ZC Switch", WM8400_RIGHT_LINE_INPUT_1_2_VOLUME,
+	WM8400_RI12ZC_SHIFT, 1, 0),
+
+SOC_SINGLE("RIN12 Mute Switch", WM8400_RIGHT_LINE_INPUT_1_2_VOLUME,
+	WM8400_RI12MUTE_SHIFT, 1, 0),
+
+WM8400_OUTPGA_SINGLE_R_TLV("RIN34 Volume",
+	WM8400_RIGHT_LINE_INPUT_3_4_VOLUME,
+	WM8400_RIN34VOL_SHIFT,
+	WM8400_RIN34VOL_MASK,
+	0,
+	in_pga_tlv),
+
+SOC_SINGLE("RIN34 ZC Switch", WM8400_RIGHT_LINE_INPUT_3_4_VOLUME,
+	WM8400_RI34ZC_SHIFT, 1, 0),
+
+SOC_SINGLE("RIN34 Mute Switch", WM8400_RIGHT_LINE_INPUT_3_4_VOLUME,
+	WM8400_RI34MUTE_SHIFT, 1, 0),
+
+};
+
+/* add non dapm controls */
+static int wm8400_add_controls(struct snd_soc_codec *codec)
+{
+	int err, i;
+
+	for (i = 0; i < ARRAY_SIZE(wm8400_snd_controls); i++) {
+		err = snd_ctl_add(codec->card,
+				snd_soc_cnew(&wm8400_snd_controls[i],codec,
+					NULL));
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
+/*
+ * _DAPM_ Controls
+ */
+
+static int inmixer_event (struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *kcontrol, int event)
+{
+	u16 reg, fakepower;
+
+	reg = wm8400_read(w->codec, WM8400_POWER_MANAGEMENT_2);
+	fakepower = wm8400_read(w->codec, WM8400_INTDRIVBITS);
+
+	if (fakepower & ((1 << WM8400_INMIXL_PWR) |
+		(1 << WM8400_AINLMUX_PWR))) {
+		reg |= WM8400_AINL_ENA;
+	} else {
+		reg &= ~WM8400_AINL_ENA;
+	}
+
+	if (fakepower & ((1 << WM8400_INMIXR_PWR) |
+		(1 << WM8400_AINRMUX_PWR))) {
+		reg |= WM8400_AINR_ENA;
+	} else {
+		reg &= ~WM8400_AINL_ENA;
+	}
+	wm8400_write(w->codec, WM8400_POWER_MANAGEMENT_2, reg);
+
+	return 0;
+}
+
+static int outmixer_event (struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol * kcontrol, int event)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	u32 reg_shift = mc->shift;
+	int ret = 0;
+	u16 reg;
+
+	switch (reg_shift) {
+	case WM8400_SPEAKER_MIXER | (WM8400_LDSPK << 8) :
+		reg = wm8400_read(w->codec, WM8400_OUTPUT_MIXER1);
+		if (reg & WM8400_LDLO) {
+			printk(KERN_WARNING
+			"Cannot set as Output Mixer 1 LDLO Set\n");
+			ret = -1;
+		}
+		break;
+	case WM8400_SPEAKER_MIXER | (WM8400_RDSPK << 8):
+		reg = wm8400_read(w->codec, WM8400_OUTPUT_MIXER2);
+		if (reg & WM8400_RDRO) {
+			printk(KERN_WARNING
+			"Cannot set as Output Mixer 2 RDRO Set\n");
+			ret = -1;
+		}
+		break;
+	case WM8400_OUTPUT_MIXER1 | (WM8400_LDLO << 8):
+		reg = wm8400_read(w->codec, WM8400_SPEAKER_MIXER);
+		if (reg & WM8400_LDSPK) {
+			printk(KERN_WARNING
+			"Cannot set as Speaker Mixer LDSPK Set\n");
+			ret = -1;
+		}
+		break;
+	case WM8400_OUTPUT_MIXER2 | (WM8400_RDRO << 8):
+		reg = wm8400_read(w->codec, WM8400_SPEAKER_MIXER);
+		if (reg & WM8400_RDSPK) {
+			printk(KERN_WARNING
+			"Cannot set as Speaker Mixer RDSPK Set\n");
+			ret = -1;
+		}
+		break;
+	}
+
+	return ret;
+}
+
+/* INMIX dB values */
+static const unsigned int in_mix_tlv[] = {
+	TLV_DB_RANGE_HEAD(1),
+	0,7, TLV_DB_LINEAR_ITEM(-1200, 600),
+};
+
+/* Left In PGA Connections */
+static const struct snd_kcontrol_new wm8400_dapm_lin12_pga_controls[] = {
+SOC_DAPM_SINGLE("LIN1 Switch", WM8400_INPUT_MIXER2, WM8400_LMN1_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LIN2 Switch", WM8400_INPUT_MIXER2, WM8400_LMP2_SHIFT, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8400_dapm_lin34_pga_controls[] = {
+SOC_DAPM_SINGLE("LIN3 Switch", WM8400_INPUT_MIXER2, WM8400_LMN3_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LIN4 Switch", WM8400_INPUT_MIXER2, WM8400_LMP4_SHIFT, 1, 0),
+};
+
+/* Right In PGA Connections */
+static const struct snd_kcontrol_new wm8400_dapm_rin12_pga_controls[] = {
+SOC_DAPM_SINGLE("RIN1 Switch", WM8400_INPUT_MIXER2, WM8400_RMN1_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("RIN2 Switch", WM8400_INPUT_MIXER2, WM8400_RMP2_SHIFT, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8400_dapm_rin34_pga_controls[] = {
+SOC_DAPM_SINGLE("RIN3 Switch", WM8400_INPUT_MIXER2, WM8400_RMN3_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("RIN4 Switch", WM8400_INPUT_MIXER2, WM8400_RMP4_SHIFT, 1, 0),
+};
+
+/* INMIXL */
+static const struct snd_kcontrol_new wm8400_dapm_inmixl_controls[] = {
+SOC_DAPM_SINGLE_TLV("Record Left Volume", WM8400_INPUT_MIXER3,
+	WM8400_LDBVOL_SHIFT, WM8400_LDBVOL_MASK, 0, in_mix_tlv),
+SOC_DAPM_SINGLE_TLV("LIN2 Volume", WM8400_INPUT_MIXER5, WM8400_LI2BVOL_SHIFT,
+	7, 0, in_mix_tlv),
+SOC_DAPM_SINGLE("LINPGA12 Switch", WM8400_INPUT_MIXER3, WM8400_L12MNB_SHIFT,
+		1, 0),
+SOC_DAPM_SINGLE("LINPGA34 Switch", WM8400_INPUT_MIXER3, WM8400_L34MNB_SHIFT,
+		1, 0),
+};
+
+/* INMIXR */
+static const struct snd_kcontrol_new wm8400_dapm_inmixr_controls[] = {
+SOC_DAPM_SINGLE_TLV("Record Right Volume", WM8400_INPUT_MIXER4,
+	WM8400_RDBVOL_SHIFT, WM8400_RDBVOL_MASK, 0, in_mix_tlv),
+SOC_DAPM_SINGLE_TLV("RIN2 Volume", WM8400_INPUT_MIXER6, WM8400_RI2BVOL_SHIFT,
+	7, 0, in_mix_tlv),
+SOC_DAPM_SINGLE("RINPGA12 Switch", WM8400_INPUT_MIXER3, WM8400_L12MNB_SHIFT,
+	1, 0),
+SOC_DAPM_SINGLE("RINPGA34 Switch", WM8400_INPUT_MIXER3, WM8400_L34MNB_SHIFT,
+	1, 0),
+};
+
+/* AINLMUX */
+static const char *wm8400_ainlmux[] =
+	{"INMIXL Mix", "RXVOICE Mix", "DIFFINL Mix"};
+
+static const struct soc_enum wm8400_ainlmux_enum =
+SOC_ENUM_SINGLE( WM8400_INPUT_MIXER1, WM8400_AINLMODE_SHIFT,
+	ARRAY_SIZE(wm8400_ainlmux), wm8400_ainlmux);
+
+static const struct snd_kcontrol_new wm8400_dapm_ainlmux_controls =
+SOC_DAPM_ENUM("Route", wm8400_ainlmux_enum);
+
+/* DIFFINL */
+
+/* AINRMUX */
+static const char *wm8400_ainrmux[] =
+	{"INMIXR Mix", "RXVOICE Mix", "DIFFINR Mix"};
+
+static const struct soc_enum wm8400_ainrmux_enum =
+SOC_ENUM_SINGLE( WM8400_INPUT_MIXER1, WM8400_AINRMODE_SHIFT,
+	ARRAY_SIZE(wm8400_ainrmux), wm8400_ainrmux);
+
+static const struct snd_kcontrol_new wm8400_dapm_ainrmux_controls =
+SOC_DAPM_ENUM("Route", wm8400_ainrmux_enum);
+
+/* RXVOICE */
+static const struct snd_kcontrol_new wm8400_dapm_rxvoice_controls[] = {
+SOC_DAPM_SINGLE_TLV("LIN4/RXN", WM8400_INPUT_MIXER5, WM8400_LR4BVOL_SHIFT,
+			WM8400_LR4BVOL_MASK, 0, in_mix_tlv),
+SOC_DAPM_SINGLE_TLV("RIN4/RXP", WM8400_INPUT_MIXER6, WM8400_RL4BVOL_SHIFT,
+			WM8400_RL4BVOL_MASK, 0, in_mix_tlv),
+};
+
+/* LOMIX */
+static const struct snd_kcontrol_new wm8400_dapm_lomix_controls[] = {
+SOC_DAPM_SINGLE("LOMIX Right ADC Bypass Switch", WM8400_OUTPUT_MIXER1,
+	WM8400_LRBLO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LOMIX Left ADC Bypass Switch", WM8400_OUTPUT_MIXER1,
+	WM8400_LLBLO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LOMIX RIN3 Bypass Switch", WM8400_OUTPUT_MIXER1,
+	WM8400_LRI3LO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LOMIX LIN3 Bypass Switch", WM8400_OUTPUT_MIXER1,
+	WM8400_LLI3LO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LOMIX RIN12 PGA Bypass Switch", WM8400_OUTPUT_MIXER1,
+	WM8400_LR12LO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LOMIX LIN12 PGA Bypass Switch", WM8400_OUTPUT_MIXER1,
+	WM8400_LL12LO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LOMIX Left DAC Switch", WM8400_OUTPUT_MIXER1,
+	WM8400_LDLO_SHIFT, 1, 0),
+};
+
+/* ROMIX */
+static const struct snd_kcontrol_new wm8400_dapm_romix_controls[] = {
+SOC_DAPM_SINGLE("ROMIX Left ADC Bypass Switch", WM8400_OUTPUT_MIXER2,
+	WM8400_RLBRO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("ROMIX Right ADC Bypass Switch", WM8400_OUTPUT_MIXER2,
+	WM8400_RRBRO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("ROMIX LIN3 Bypass Switch", WM8400_OUTPUT_MIXER2,
+	WM8400_RLI3RO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("ROMIX RIN3 Bypass Switch", WM8400_OUTPUT_MIXER2,
+	WM8400_RRI3RO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("ROMIX LIN12 PGA Bypass Switch", WM8400_OUTPUT_MIXER2,
+	WM8400_RL12RO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("ROMIX RIN12 PGA Bypass Switch", WM8400_OUTPUT_MIXER2,
+	WM8400_RR12RO_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("ROMIX Right DAC Switch", WM8400_OUTPUT_MIXER2,
+	WM8400_RDRO_SHIFT, 1, 0),
+};
+
+/* LONMIX */
+static const struct snd_kcontrol_new wm8400_dapm_lonmix_controls[] = {
+SOC_DAPM_SINGLE("LONMIX Left Mixer PGA Switch", WM8400_LINE_MIXER1,
+	WM8400_LLOPGALON_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LONMIX Right Mixer PGA Switch", WM8400_LINE_MIXER1,
+	WM8400_LROPGALON_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LONMIX Inverted LOP Switch", WM8400_LINE_MIXER1,
+	WM8400_LOPLON_SHIFT, 1, 0),
+};
+
+/* LOPMIX */
+static const struct snd_kcontrol_new wm8400_dapm_lopmix_controls[] = {
+SOC_DAPM_SINGLE("LOPMIX Right Mic Bypass Switch", WM8400_LINE_MIXER1,
+	WM8400_LR12LOP_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LOPMIX Left Mic Bypass Switch", WM8400_LINE_MIXER1,
+	WM8400_LL12LOP_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("LOPMIX Left Mixer PGA Switch", WM8400_LINE_MIXER1,
+	WM8400_LLOPGALOP_SHIFT, 1, 0),
+};
+
+/* RONMIX */
+static const struct snd_kcontrol_new wm8400_dapm_ronmix_controls[] = {
+SOC_DAPM_SINGLE("RONMIX Right Mixer PGA Switch", WM8400_LINE_MIXER2,
+	WM8400_RROPGARON_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("RONMIX Left Mixer PGA Switch", WM8400_LINE_MIXER2,
+	WM8400_RLOPGARON_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("RONMIX Inverted ROP Switch", WM8400_LINE_MIXER2,
+	WM8400_ROPRON_SHIFT, 1, 0),
+};
+
+/* ROPMIX */
+static const struct snd_kcontrol_new wm8400_dapm_ropmix_controls[] = {
+SOC_DAPM_SINGLE("ROPMIX Left Mic Bypass Switch", WM8400_LINE_MIXER2,
+	WM8400_RL12ROP_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("ROPMIX Right Mic Bypass Switch", WM8400_LINE_MIXER2,
+	WM8400_RR12ROP_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("ROPMIX Right Mixer PGA Switch", WM8400_LINE_MIXER2,
+	WM8400_RROPGAROP_SHIFT, 1, 0),
+};
+
+/* OUT3MIX */
+static const struct snd_kcontrol_new wm8400_dapm_out3mix_controls[] = {
+SOC_DAPM_SINGLE("OUT3MIX LIN4/RXP Bypass Switch", WM8400_OUT3_4_MIXER,
+	WM8400_LI4O3_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("OUT3MIX Left Out PGA Switch", WM8400_OUT3_4_MIXER,
+	WM8400_LPGAO3_SHIFT, 1, 0),
+};
+
+/* OUT4MIX */
+static const struct snd_kcontrol_new wm8400_dapm_out4mix_controls[] = {
+SOC_DAPM_SINGLE("OUT4MIX Right Out PGA Switch", WM8400_OUT3_4_MIXER,
+	WM8400_RPGAO4_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("OUT4MIX RIN4/RXP Bypass Switch", WM8400_OUT3_4_MIXER,
+	WM8400_RI4O4_SHIFT, 1, 0),
+};
+
+/* SPKMIX */
+static const struct snd_kcontrol_new wm8400_dapm_spkmix_controls[] = {
+SOC_DAPM_SINGLE("SPKMIX LIN2 Bypass Switch", WM8400_SPEAKER_MIXER,
+	WM8400_LI2SPK_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("SPKMIX LADC Bypass Switch", WM8400_SPEAKER_MIXER,
+	WM8400_LB2SPK_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("SPKMIX Left Mixer PGA Switch", WM8400_SPEAKER_MIXER,
+	WM8400_LOPGASPK_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("SPKMIX Left DAC Switch", WM8400_SPEAKER_MIXER,
+	WM8400_LDSPK_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("SPKMIX Right DAC Switch", WM8400_SPEAKER_MIXER,
+	WM8400_RDSPK_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("SPKMIX Right Mixer PGA Switch", WM8400_SPEAKER_MIXER,
+	WM8400_ROPGASPK_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("SPKMIX RADC Bypass Switch", WM8400_SPEAKER_MIXER,
+	WM8400_RL12ROP_SHIFT, 1, 0),
+SOC_DAPM_SINGLE("SPKMIX RIN2 Bypass Switch", WM8400_SPEAKER_MIXER,
+	WM8400_RI2SPK_SHIFT, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget wm8400_dapm_widgets[] = {
+/* Input Side */
+/* Input Lines */
+SND_SOC_DAPM_INPUT("LIN1"),
+SND_SOC_DAPM_INPUT("LIN2"),
+SND_SOC_DAPM_INPUT("LIN3"),
+SND_SOC_DAPM_INPUT("LIN4/RXN"),
+SND_SOC_DAPM_INPUT("RIN3"),
+SND_SOC_DAPM_INPUT("RIN4/RXP"),
+SND_SOC_DAPM_INPUT("RIN1"),
+SND_SOC_DAPM_INPUT("RIN2"),
+SND_SOC_DAPM_INPUT("Internal ADC Source"),
+
+/* DACs */
+SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8400_POWER_MANAGEMENT_2,
+	WM8400_ADCL_ENA_SHIFT, 0),
+SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8400_POWER_MANAGEMENT_2,
+	WM8400_ADCR_ENA_SHIFT, 0),
+
+/* Input PGAs */
+SND_SOC_DAPM_MIXER("LIN12 PGA", WM8400_POWER_MANAGEMENT_2,
+		   WM8400_LIN12_ENA_SHIFT,
+		   0, &wm8400_dapm_lin12_pga_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_lin12_pga_controls)),
+SND_SOC_DAPM_MIXER("LIN34 PGA", WM8400_POWER_MANAGEMENT_2,
+		   WM8400_LIN34_ENA_SHIFT,
+		   0, &wm8400_dapm_lin34_pga_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_lin34_pga_controls)),
+SND_SOC_DAPM_MIXER("RIN12 PGA", WM8400_POWER_MANAGEMENT_2,
+		   WM8400_RIN12_ENA_SHIFT,
+		   0, &wm8400_dapm_rin12_pga_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_rin12_pga_controls)),
+SND_SOC_DAPM_MIXER("RIN34 PGA", WM8400_POWER_MANAGEMENT_2,
+		   WM8400_RIN34_ENA_SHIFT,
+		   0, &wm8400_dapm_rin34_pga_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_rin34_pga_controls)),
+
+/* INMIXL */
+SND_SOC_DAPM_MIXER_E("INMIXL", WM8400_INTDRIVBITS, WM8400_INMIXL_PWR, 0,
+	&wm8400_dapm_inmixl_controls[0],
+	ARRAY_SIZE(wm8400_dapm_inmixl_controls),
+	inmixer_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+
+/* AINLMUX */
+SND_SOC_DAPM_MUX_E("AILNMUX", WM8400_INTDRIVBITS, WM8400_AINLMUX_PWR, 0,
+	&wm8400_dapm_ainlmux_controls, inmixer_event,
+	SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+
+/* INMIXR */
+SND_SOC_DAPM_MIXER_E("INMIXR", WM8400_INTDRIVBITS, WM8400_INMIXR_PWR, 0,
+	&wm8400_dapm_inmixr_controls[0],
+	ARRAY_SIZE(wm8400_dapm_inmixr_controls),
+	inmixer_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+
+/* AINRMUX */
+SND_SOC_DAPM_MUX_E("AIRNMUX", WM8400_INTDRIVBITS, WM8400_AINRMUX_PWR, 0,
+	&wm8400_dapm_ainrmux_controls, inmixer_event,
+	SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+
+/* Output Side */
+/* DACs */
+SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8400_POWER_MANAGEMENT_3,
+	WM8400_DACL_ENA_SHIFT, 0),
+SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8400_POWER_MANAGEMENT_3,
+	WM8400_DACR_ENA_SHIFT, 0),
+
+/* LOMIX */
+SND_SOC_DAPM_MIXER_E("LOMIX", WM8400_POWER_MANAGEMENT_3,
+		     WM8400_LOMIX_ENA_SHIFT,
+		     0, &wm8400_dapm_lomix_controls[0],
+		     ARRAY_SIZE(wm8400_dapm_lomix_controls),
+		     outmixer_event, SND_SOC_DAPM_PRE_REG),
+
+/* LONMIX */
+SND_SOC_DAPM_MIXER("LONMIX", WM8400_POWER_MANAGEMENT_3, WM8400_LON_ENA_SHIFT,
+		   0, &wm8400_dapm_lonmix_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_lonmix_controls)),
+
+/* LOPMIX */
+SND_SOC_DAPM_MIXER("LOPMIX", WM8400_POWER_MANAGEMENT_3, WM8400_LOP_ENA_SHIFT,
+		   0, &wm8400_dapm_lopmix_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_lopmix_controls)),
+
+/* OUT3MIX */
+SND_SOC_DAPM_MIXER("OUT3MIX", WM8400_POWER_MANAGEMENT_1, WM8400_OUT3_ENA_SHIFT,
+		   0, &wm8400_dapm_out3mix_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_out3mix_controls)),
+
+/* SPKMIX */
+SND_SOC_DAPM_MIXER_E("SPKMIX", WM8400_POWER_MANAGEMENT_1, WM8400_SPK_ENA_SHIFT,
+		     0, &wm8400_dapm_spkmix_controls[0],
+		     ARRAY_SIZE(wm8400_dapm_spkmix_controls), outmixer_event,
+		     SND_SOC_DAPM_PRE_REG),
+
+/* OUT4MIX */
+SND_SOC_DAPM_MIXER("OUT4MIX", WM8400_POWER_MANAGEMENT_1, WM8400_OUT4_ENA_SHIFT,
+	0, &wm8400_dapm_out4mix_controls[0],
+	ARRAY_SIZE(wm8400_dapm_out4mix_controls)),
+
+/* ROPMIX */
+SND_SOC_DAPM_MIXER("ROPMIX", WM8400_POWER_MANAGEMENT_3, WM8400_ROP_ENA_SHIFT,
+		   0, &wm8400_dapm_ropmix_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_ropmix_controls)),
+
+/* RONMIX */
+SND_SOC_DAPM_MIXER("RONMIX", WM8400_POWER_MANAGEMENT_3, WM8400_RON_ENA_SHIFT,
+		   0, &wm8400_dapm_ronmix_controls[0],
+		   ARRAY_SIZE(wm8400_dapm_ronmix_controls)),
+
+/* ROMIX */
+SND_SOC_DAPM_MIXER_E("ROMIX", WM8400_POWER_MANAGEMENT_3,
+		     WM8400_ROMIX_ENA_SHIFT,
+		     0, &wm8400_dapm_romix_controls[0],
+		     ARRAY_SIZE(wm8400_dapm_romix_controls),
+		     outmixer_event, SND_SOC_DAPM_PRE_REG),
+
+/* LOUT PGA */
+SND_SOC_DAPM_PGA("LOUT PGA", WM8400_POWER_MANAGEMENT_1, WM8400_LOUT_ENA_SHIFT,
+		 0, NULL, 0),
+
+/* ROUT PGA */
+SND_SOC_DAPM_PGA("ROUT PGA", WM8400_POWER_MANAGEMENT_1, WM8400_ROUT_ENA_SHIFT,
+		 0, NULL, 0),
+
+/* LOPGA */
+SND_SOC_DAPM_PGA("LOPGA", WM8400_POWER_MANAGEMENT_3, WM8400_LOPGA_ENA_SHIFT, 0,
+	NULL, 0),
+
+/* ROPGA */
+SND_SOC_DAPM_PGA("ROPGA", WM8400_POWER_MANAGEMENT_3, WM8400_ROPGA_ENA_SHIFT, 0,
+	NULL, 0),
+
+/* MICBIAS */
+SND_SOC_DAPM_MICBIAS("MICBIAS", WM8400_POWER_MANAGEMENT_1,
+	WM8400_MIC1BIAS_ENA_SHIFT, 0),
+
+SND_SOC_DAPM_OUTPUT("LON"),
+SND_SOC_DAPM_OUTPUT("LOP"),
+SND_SOC_DAPM_OUTPUT("OUT3"),
+SND_SOC_DAPM_OUTPUT("LOUT"),
+SND_SOC_DAPM_OUTPUT("SPKN"),
+SND_SOC_DAPM_OUTPUT("SPKP"),
+SND_SOC_DAPM_OUTPUT("ROUT"),
+SND_SOC_DAPM_OUTPUT("OUT4"),
+SND_SOC_DAPM_OUTPUT("ROP"),
+SND_SOC_DAPM_OUTPUT("RON"),
+
+SND_SOC_DAPM_OUTPUT("Internal DAC Sink"),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+	/* Make DACs turn on when playing even if not mixed into any outputs */
+	{"Internal DAC Sink", NULL, "Left DAC"},
+	{"Internal DAC Sink", NULL, "Right DAC"},
+
+	/* Make ADCs turn on when recording
+	 * even if not mixed from any inputs */
+	{"Left ADC", NULL, "Internal ADC Source"},
+	{"Right ADC", NULL, "Internal ADC Source"},
+
+	/* Input Side */
+	/* LIN12 PGA */
+	{"LIN12 PGA", "LIN1 Switch", "LIN1"},
+	{"LIN12 PGA", "LIN2 Switch", "LIN2"},
+	/* LIN34 PGA */
+	{"LIN34 PGA", "LIN3 Switch", "LIN3"},
+	{"LIN34 PGA", "LIN4 Switch", "LIN4/RXN"},
+	/* INMIXL */
+	{"INMIXL", "Record Left Volume", "LOMIX"},
+	{"INMIXL", "LIN2 Volume", "LIN2"},
+	{"INMIXL", "LINPGA12 Switch", "LIN12 PGA"},
+	{"INMIXL", "LINPGA34 Switch", "LIN34 PGA"},
+	/* AILNMUX */
+	{"AILNMUX", "INMIXL Mix", "INMIXL"},
+	{"AILNMUX", "DIFFINL Mix", "LIN12 PGA"},
+	{"AILNMUX", "DIFFINL Mix", "LIN34 PGA"},
+	{"AILNMUX", "RXVOICE Mix", "LIN4/RXN"},
+	{"AILNMUX", "RXVOICE Mix", "RIN4/RXP"},
+	/* ADC */
+	{"Left ADC", NULL, "AILNMUX"},
+
+	/* RIN12 PGA */
+	{"RIN12 PGA", "RIN1 Switch", "RIN1"},
+	{"RIN12 PGA", "RIN2 Switch", "RIN2"},
+	/* RIN34 PGA */
+	{"RIN34 PGA", "RIN3 Switch", "RIN3"},
+	{"RIN34 PGA", "RIN4 Switch", "RIN4/RXP"},
+	/* INMIXL */
+	{"INMIXR", "Record Right Volume", "ROMIX"},
+	{"INMIXR", "RIN2 Volume", "RIN2"},
+	{"INMIXR", "RINPGA12 Switch", "RIN12 PGA"},
+	{"INMIXR", "RINPGA34 Switch", "RIN34 PGA"},
+	/* AIRNMUX */
+	{"AIRNMUX", "INMIXR Mix", "INMIXR"},
+	{"AIRNMUX", "DIFFINR Mix", "RIN12 PGA"},
+	{"AIRNMUX", "DIFFINR Mix", "RIN34 PGA"},
+	{"AIRNMUX", "RXVOICE Mix", "LIN4/RXN"},
+	{"AIRNMUX", "RXVOICE Mix", "RIN4/RXP"},
+	/* ADC */
+	{"Right ADC", NULL, "AIRNMUX"},
+
+	/* LOMIX */
+	{"LOMIX", "LOMIX RIN3 Bypass Switch", "RIN3"},
+	{"LOMIX", "LOMIX LIN3 Bypass Switch", "LIN3"},
+	{"LOMIX", "LOMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
+	{"LOMIX", "LOMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
+	{"LOMIX", "LOMIX Right ADC Bypass Switch", "AIRNMUX"},
+	{"LOMIX", "LOMIX Left ADC Bypass Switch", "AILNMUX"},
+	{"LOMIX", "LOMIX Left DAC Switch", "Left DAC"},
+
+	/* ROMIX */
+	{"ROMIX", "ROMIX RIN3 Bypass Switch", "RIN3"},
+	{"ROMIX", "ROMIX LIN3 Bypass Switch", "LIN3"},
+	{"ROMIX", "ROMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
+	{"ROMIX", "ROMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
+	{"ROMIX", "ROMIX Right ADC Bypass Switch", "AIRNMUX"},
+	{"ROMIX", "ROMIX Left ADC Bypass Switch", "AILNMUX"},
+	{"ROMIX", "ROMIX Right DAC Switch", "Right DAC"},
+
+	/* SPKMIX */
+	{"SPKMIX", "SPKMIX LIN2 Bypass Switch", "LIN2"},
+	{"SPKMIX", "SPKMIX RIN2 Bypass Switch", "RIN2"},
+	{"SPKMIX", "SPKMIX LADC Bypass Switch", "AILNMUX"},
+	{"SPKMIX", "SPKMIX RADC Bypass Switch", "AIRNMUX"},
+	{"SPKMIX", "SPKMIX Left Mixer PGA Switch", "LOPGA"},
+	{"SPKMIX", "SPKMIX Right Mixer PGA Switch", "ROPGA"},
+	{"SPKMIX", "SPKMIX Right DAC Switch", "Right DAC"},
+	{"SPKMIX", "SPKMIX Left DAC Switch", "Right DAC"},
+
+	/* LONMIX */
+	{"LONMIX", "LONMIX Left Mixer PGA Switch", "LOPGA"},
+	{"LONMIX", "LONMIX Right Mixer PGA Switch", "ROPGA"},
+	{"LONMIX", "LONMIX Inverted LOP Switch", "LOPMIX"},
+
+	/* LOPMIX */
+	{"LOPMIX", "LOPMIX Right Mic Bypass Switch", "RIN12 PGA"},
+	{"LOPMIX", "LOPMIX Left Mic Bypass Switch", "LIN12 PGA"},
+	{"LOPMIX", "LOPMIX Left Mixer PGA Switch", "LOPGA"},
+
+	/* OUT3MIX */
+	{"OUT3MIX", "OUT3MIX LIN4/RXP Bypass Switch", "LIN4/RXN"},
+	{"OUT3MIX", "OUT3MIX Left Out PGA Switch", "LOPGA"},
+
+	/* OUT4MIX */
+	{"OUT4MIX", "OUT4MIX Right Out PGA Switch", "ROPGA"},
+	{"OUT4MIX", "OUT4MIX RIN4/RXP Bypass Switch", "RIN4/RXP"},
+
+	/* RONMIX */
+	{"RONMIX", "RONMIX Right Mixer PGA Switch", "ROPGA"},
+	{"RONMIX", "RONMIX Left Mixer PGA Switch", "LOPGA"},
+	{"RONMIX", "RONMIX Inverted ROP Switch", "ROPMIX"},
+
+	/* ROPMIX */
+	{"ROPMIX", "ROPMIX Left Mic Bypass Switch", "LIN12 PGA"},
+	{"ROPMIX", "ROPMIX Right Mic Bypass Switch", "RIN12 PGA"},
+	{"ROPMIX", "ROPMIX Right Mixer PGA Switch", "ROPGA"},
+
+	/* Out Mixer PGAs */
+	{"LOPGA", NULL, "LOMIX"},
+	{"ROPGA", NULL, "ROMIX"},
+
+	{"LOUT PGA", NULL, "LOMIX"},
+	{"ROUT PGA", NULL, "ROMIX"},
+
+	/* Output Pins */
+	{"LON", NULL, "LONMIX"},
+	{"LOP", NULL, "LOPMIX"},
+	{"OUT3", NULL, "OUT3MIX"},
+	{"LOUT", NULL, "LOUT PGA"},
+	{"SPKN", NULL, "SPKMIX"},
+	{"ROUT", NULL, "ROUT PGA"},
+	{"OUT4", NULL, "OUT4MIX"},
+	{"ROP", NULL, "ROPMIX"},
+	{"RON", NULL, "RONMIX"},
+};
+
+static int wm8400_add_widgets(struct snd_soc_codec *codec)
+{
+	snd_soc_dapm_new_controls(codec, wm8400_dapm_widgets,
+				  ARRAY_SIZE(wm8400_dapm_widgets));
+
+	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+
+	snd_soc_dapm_new_widgets(codec);
+	return 0;
+}
+
+/*
+ * Clock after FLL and dividers
+ */
+static int wm8400_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+		int clk_id, unsigned int freq, int dir)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	struct wm8400_priv *wm8400 = codec->private_data;
+
+	wm8400->sysclk = freq;
+	return 0;
+}
+
+/*
+ * Sets ADC and Voice DAC format.
+ */
+static int wm8400_set_dai_fmt(struct snd_soc_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 audio1, audio3;
+
+	audio1 = wm8400_read(codec, WM8400_AUDIO_INTERFACE_1);
+	audio3 = wm8400_read(codec, WM8400_AUDIO_INTERFACE_3);
+
+	/* set master/slave audio interface */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBS_CFS:
+		audio3 &= ~WM8400_AIF_MSTR1;
+		break;
+	case SND_SOC_DAIFMT_CBM_CFM:
+		audio3 |= WM8400_AIF_MSTR1;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	audio1 &= ~WM8400_AIF_FMT_MASK;
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		audio1 |= WM8400_AIF_FMT_I2S;
+		audio1 &= ~WM8400_AIF_LRCLK_INV;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		audio1 |= WM8400_AIF_FMT_RIGHTJ;
+		audio1 &= ~WM8400_AIF_LRCLK_INV;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		audio1 |= WM8400_AIF_FMT_LEFTJ;
+		audio1 &= ~WM8400_AIF_LRCLK_INV;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		audio1 |= WM8400_AIF_FMT_DSP;
+		audio1 &= ~WM8400_AIF_LRCLK_INV;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		audio1 |= WM8400_AIF_FMT_DSP | WM8400_AIF_LRCLK_INV;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	wm8400_write(codec, WM8400_AUDIO_INTERFACE_1, audio1);
+	wm8400_write(codec, WM8400_AUDIO_INTERFACE_3, audio3);
+	return 0;
+}
+
+static int wm8400_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
+		int div_id, int div)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 reg;
+
+	switch (div_id) {
+	case WM8400_MCLK_DIV:
+		reg = wm8400_read(codec, WM8400_CLOCKING_2) &
+			~WM8400_MCLK_DIV_MASK;
+		wm8400_write(codec, WM8400_CLOCKING_2, reg | div);
+		break;
+	case WM8400_DACCLK_DIV:
+		reg = wm8400_read(codec, WM8400_CLOCKING_2) &
+			~WM8400_DAC_CLKDIV_MASK;
+		wm8400_write(codec, WM8400_CLOCKING_2, reg | div);
+		break;
+	case WM8400_ADCCLK_DIV:
+		reg = wm8400_read(codec, WM8400_CLOCKING_2) &
+			~WM8400_ADC_CLKDIV_MASK;
+		wm8400_write(codec, WM8400_CLOCKING_2, reg | div);
+		break;
+	case WM8400_BCLK_DIV:
+		reg = wm8400_read(codec, WM8400_CLOCKING_1) &
+			~WM8400_BCLK_DIV_MASK;
+		wm8400_write(codec, WM8400_CLOCKING_1, reg | div);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/*
+ * Set PCM DAI bit size and sample rate.
+ */
+static int wm8400_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params,
+	struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_device *socdev = rtd->socdev;
+	struct snd_soc_codec *codec = socdev->card->codec;
+	u16 audio1 = wm8400_read(codec, WM8400_AUDIO_INTERFACE_1);
+
+	audio1 &= ~WM8400_AIF_WL_MASK;
+	/* bit size */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		audio1 |= WM8400_AIF_WL_20BITS;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		audio1 |= WM8400_AIF_WL_24BITS;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		audio1 |= WM8400_AIF_WL_32BITS;
+		break;
+	}
+
+	wm8400_write(codec, WM8400_AUDIO_INTERFACE_1, audio1);
+	return 0;
+}
+
+static int wm8400_mute(struct snd_soc_dai *dai, int mute)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	u16 val = wm8400_read(codec, WM8400_DAC_CTRL) & ~WM8400_DAC_MUTE;
+
+	if (mute)
+		wm8400_write(codec, WM8400_DAC_CTRL, val | WM8400_DAC_MUTE);
+	else
+		wm8400_write(codec, WM8400_DAC_CTRL, val);
+
+	return 0;
+}
+
+/* TODO: set bias for best performance at standby */
+static int wm8400_set_bias_level(struct snd_soc_codec *codec,
+				 enum snd_soc_bias_level level)
+{
+	struct wm8400_priv *wm8400 = codec->private_data;
+	u16 val;
+	int ret;
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+
+	case SND_SOC_BIAS_PREPARE:
+		/* VMID=2*50k */
+		val = wm8400_read(codec, WM8400_POWER_MANAGEMENT_1) &
+			~WM8400_VMID_MODE_MASK;
+		wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, val | 0x2);
+		break;
+
+	case SND_SOC_BIAS_STANDBY:
+		if (codec->bias_level == SND_SOC_BIAS_OFF) {
+			ret = regulator_bulk_enable(ARRAY_SIZE(power),
+						    &power[0]);
+			if (ret != 0) {
+				dev_err(wm8400->wm8400->dev,
+					"Failed to enable regulators: %d\n",
+					ret);
+				return ret;
+			}
+
+			wm8400_write(codec, WM8400_POWER_MANAGEMENT_1,
+				     WM8400_CODEC_ENA | WM8400_SYSCLK_ENA);
+
+			/* Enable all output discharge bits */
+			wm8400_write(codec, WM8400_ANTIPOP1, WM8400_DIS_LLINE |
+				WM8400_DIS_RLINE | WM8400_DIS_OUT3 |
+				WM8400_DIS_OUT4 | WM8400_DIS_LOUT |
+				WM8400_DIS_ROUT);
+
+			/* Enable POBCTRL, SOFT_ST, VMIDTOG and BUFDCOPEN */
+			wm8400_write(codec, WM8400_ANTIPOP2, WM8400_SOFTST |
+				     WM8400_BUFDCOPEN | WM8400_POBCTRL);
+
+			msleep(500);
+
+			/* Enable outputs */
+			val = wm8400_read(codec, WM8400_POWER_MANAGEMENT_1);
+			val |= WM8400_SPK_ENA | WM8400_OUT3_ENA |
+				WM8400_OUT4_ENA | WM8400_LOUT_ENA |
+				WM8400_ROUT_ENA;
+			wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, val);
+
+			/* disable all output discharge bits */
+			wm8400_write(codec, WM8400_ANTIPOP1, 0);
+
+			/* Enable VREF & VMID at 2x50k */
+			val |= 0x2 | WM8400_VREF_ENA;
+			wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, val);
+
+			msleep(600);
+
+			/* Enable BUFIOEN */
+			wm8400_write(codec, WM8400_ANTIPOP2, WM8400_SOFTST |
+				     WM8400_BUFDCOPEN | WM8400_POBCTRL |
+				     WM8400_BUFIOEN);
+
+			/* Disable outputs */
+			val &= ~(WM8400_SPK_ENA | WM8400_OUT3_ENA |
+				 WM8400_OUT4_ENA | WM8400_LOUT_ENA |
+				 WM8400_ROUT_ENA);
+			wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, val);
+
+			/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
+			wm8400_write(codec, WM8400_ANTIPOP2, WM8400_BUFIOEN);
+		}
+
+		/* VMID=2*300k */
+		val = wm8400_read(codec, WM8400_POWER_MANAGEMENT_1) &
+			~WM8400_VMID_MODE_MASK;
+		wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, val | 0x4);
+		break;
+
+	case SND_SOC_BIAS_OFF:
+		/* Enable POBCTRL and SOFT_ST */
+		wm8400_write(codec, WM8400_ANTIPOP2, WM8400_SOFTST |
+			WM8400_POBCTRL | WM8400_BUFIOEN);
+
+		/* Enable POBCTRL, SOFT_ST and BUFDCOPEN */
+		wm8400_write(codec, WM8400_ANTIPOP2, WM8400_SOFTST |
+			WM8400_BUFDCOPEN | WM8400_POBCTRL |
+			WM8400_BUFIOEN);
+
+		/* mute DAC */
+		val = wm8400_read(codec, WM8400_DAC_CTRL);
+		wm8400_write(codec, WM8400_DAC_CTRL, val | WM8400_DAC_MUTE);
+
+		/* Enable any disabled outputs */
+		val = wm8400_read(codec, WM8400_POWER_MANAGEMENT_1);
+		val |= WM8400_SPK_ENA | WM8400_OUT3_ENA |
+			WM8400_OUT4_ENA | WM8400_LOUT_ENA |
+			WM8400_ROUT_ENA;
+		wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, val);
+
+		/* Disable VMID */
+		val &= ~WM8400_VMID_MODE_MASK;
+		wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, val);
+
+		msleep(300);
+
+		/* Enable all output discharge bits */
+		wm8400_write(codec, WM8400_ANTIPOP1, WM8400_DIS_LLINE |
+			WM8400_DIS_RLINE | WM8400_DIS_OUT3 |
+			WM8400_DIS_OUT4 | WM8400_DIS_LOUT |
+			WM8400_DIS_ROUT);
+
+		/* Disable VREF */
+		val &= ~WM8400_VREF_ENA;
+		wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, val);
+
+		/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
+		wm8400_write(codec, WM8400_ANTIPOP2, 0x0);
+
+		ret = regulator_bulk_disable(ARRAY_SIZE(power),
+					     &power[0]);
+		if (ret != 0)
+			return ret;
+
+		break;
+	}
+
+	codec->bias_level = level;
+	return 0;
+}
+
+#define WM8400_RATES SNDRV_PCM_RATE_8000_96000
+
+#define WM8400_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+	SNDRV_PCM_FMTBIT_S24_LE)
+
+/*
+ * The WM8400 supports 2 different and mutually exclusive DAI
+ * configurations.
+ *
+ * 1. ADC/DAC on Primary Interface
+ * 2. ADC on Primary Interface/DAC on secondary
+ */
+struct snd_soc_dai wm8400_dai = {
+/* ADC/DAC on primary */
+	.name = "WM8400 ADC/DAC Primary",
+	.id = 1,
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8400_RATES,
+		.formats = WM8400_FORMATS,
+	},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8400_RATES,
+		.formats = WM8400_FORMATS,
+	},
+	.ops = {
+		.hw_params = wm8400_hw_params,
+		.digital_mute = wm8400_mute,
+		.set_fmt = wm8400_set_dai_fmt,
+		.set_clkdiv = wm8400_set_dai_clkdiv,
+		.set_sysclk = wm8400_set_dai_sysclk,
+	},
+};
+EXPORT_SYMBOL_GPL(wm8400_dai);
+
+static int wm8400_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->card->codec;
+
+	wm8400_set_bias_level(codec, SND_SOC_BIAS_OFF);
+
+	return 0;
+}
+
+static int wm8400_resume(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->card->codec;
+
+	wm8400_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+	return 0;
+}
+
+static struct snd_soc_codec *wm8400_codec;
+
+static int wm8400_probe(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec;
+	int ret;
+
+	if (!wm8400_codec) {
+		dev_err(&pdev->dev, "wm8400 not yet discovered\n");
+		return -ENODEV;
+	}
+	codec = wm8400_codec;
+
+	socdev->card->codec = codec;
+
+	/* register pcms */
+	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to create pcms\n");
+		goto pcm_err;
+	}
+
+	wm8400_add_controls(codec);
+	wm8400_add_widgets(codec);
+
+	ret = snd_soc_init_card(socdev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to register card\n");
+		goto card_err;
+	}
+
+	return ret;
+
+card_err:
+	snd_soc_free_pcms(socdev);
+	snd_soc_dapm_free(socdev);
+pcm_err:
+	return ret;
+}
+
+/* power down chip */
+static int wm8400_remove(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+
+	snd_soc_free_pcms(socdev);
+	snd_soc_dapm_free(socdev);
+
+	return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_wm8400 = {
+	.probe =	wm8400_probe,
+	.remove =	wm8400_remove,
+	.suspend =	wm8400_suspend,
+	.resume =	wm8400_resume,
+};
+
+static void wm8400_probe_deferred(struct work_struct *work)
+{
+	struct wm8400_priv *priv = container_of(work, struct wm8400_priv,
+						work);
+	struct snd_soc_codec *codec = &priv->codec;
+	int ret;
+
+	/* charge output caps */
+	wm8400_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+	/* We're done, tell the subsystem. */
+	ret = snd_soc_register_codec(codec);
+	if (ret != 0) {
+		dev_err(priv->wm8400->dev,
+			"Failed to register codec: %d\n", ret);
+		goto err;
+	}
+
+	ret = snd_soc_register_dai(&wm8400_dai);
+	if (ret != 0) {
+		dev_err(priv->wm8400->dev,
+			"Failed to register DAI: %d\n", ret);
+		goto err_codec;
+	}
+
+	return;
+
+err_codec:
+	snd_soc_unregister_codec(codec);
+err:
+	wm8400_set_bias_level(codec, SND_SOC_BIAS_OFF);
+}
+
+static int wm8400_codec_probe(struct platform_device *dev)
+{
+	struct wm8400_priv *priv;
+	int ret;
+	u16 reg;
+	struct snd_soc_codec *codec;
+
+	priv = kzalloc(sizeof(struct wm8400_priv), GFP_KERNEL);
+	if (priv == NULL)
+		return -ENOMEM;
+
+	codec = &priv->codec;
+	codec->private_data = priv;
+	codec->control_data = dev->dev.driver_data;
+	priv->wm8400 = dev->dev.driver_data;
+
+	ret = regulator_bulk_get(priv->wm8400->dev,
+				 ARRAY_SIZE(power), &power[0]);
+	if (ret != 0) {
+		dev_err(&dev->dev, "Failed to get regulators: %d\n", ret);
+	        goto err;
+	}
+
+	codec->dev = &dev->dev;
+	wm8400_dai.dev = &dev->dev;
+
+	codec->name = "WM8400";
+	codec->owner = THIS_MODULE;
+	codec->read = wm8400_read;
+	codec->write = wm8400_write;
+	codec->bias_level = SND_SOC_BIAS_OFF;
+	codec->set_bias_level = wm8400_set_bias_level;
+	codec->dai = &wm8400_dai;
+	codec->num_dai = 1;
+	codec->reg_cache_size = WM8400_REGISTER_COUNT;
+	mutex_init(&codec->mutex);
+	INIT_LIST_HEAD(&codec->dapm_widgets);
+	INIT_LIST_HEAD(&codec->dapm_paths);
+	INIT_WORK(&priv->work, wm8400_probe_deferred);
+
+	wm8400_codec_reset(codec);
+
+	reg = wm8400_read(codec, WM8400_POWER_MANAGEMENT_1);
+	wm8400_write(codec, WM8400_POWER_MANAGEMENT_1, reg | WM8400_CODEC_ENA);
+
+	/* Latch volume update bits */
+	reg = wm8400_read(codec, WM8400_LEFT_LINE_INPUT_1_2_VOLUME);
+	wm8400_write(codec, WM8400_LEFT_LINE_INPUT_1_2_VOLUME,
+		     reg & WM8400_IPVU);
+	reg = wm8400_read(codec, WM8400_RIGHT_LINE_INPUT_1_2_VOLUME);
+	wm8400_write(codec, WM8400_RIGHT_LINE_INPUT_1_2_VOLUME,
+		     reg & WM8400_IPVU);
+
+	wm8400_write(codec, WM8400_LEFT_OUTPUT_VOLUME, 0x50 | (1<<8));
+	wm8400_write(codec, WM8400_RIGHT_OUTPUT_VOLUME, 0x50 | (1<<8));
+
+	wm8400_codec = codec;
+
+	if (!schedule_work(&priv->work)) {
+		ret = -EINVAL;
+		goto err_regulator;
+	}
+
+	return 0;
+
+err_regulator:
+	wm8400_codec = NULL;
+	regulator_bulk_free(ARRAY_SIZE(power), power);
+err:
+	kfree(priv);
+	return ret;
+}
+
+static int __exit wm8400_codec_remove(struct platform_device *dev)
+{
+	struct wm8400_priv *priv = wm8400_codec->private_data;
+	u16 reg;
+
+	snd_soc_unregister_dai(&wm8400_dai);
+	snd_soc_unregister_codec(wm8400_codec);
+
+	reg = wm8400_read(wm8400_codec, WM8400_POWER_MANAGEMENT_1);
+	wm8400_write(wm8400_codec, WM8400_POWER_MANAGEMENT_1,
+		     reg & (~WM8400_CODEC_ENA));
+
+	regulator_bulk_free(ARRAY_SIZE(power), power);
+	kfree(priv);
+
+	wm8400_codec = NULL;
+
+	return 0;
+}
+
+static struct platform_driver wm8400_codec_driver = {
+	.driver = {
+		.name = "wm8400-codec",
+		.owner = THIS_MODULE,
+	},
+	.probe = wm8400_codec_probe,
+	.remove	= __exit_p(wm8400_codec_remove),
+};
+
+static int __init wm8400_codec_init(void)
+{
+	return platform_driver_register(&wm8400_codec_driver);
+}
+module_init(wm8400_codec_init);
+
+static void __exit wm8400_codec_exit(void)
+{
+	platform_driver_unregister(&wm8400_codec_driver);
+}
+module_exit(wm8400_codec_exit);
+
+EXPORT_SYMBOL_GPL(soc_codec_dev_wm8400);
+
+MODULE_DESCRIPTION("ASoC WM8400 driver");
+MODULE_AUTHOR("Mark Brown");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8400-codec");
diff --git a/sound/soc/codecs/wm8400.h b/sound/soc/codecs/wm8400.h
new file mode 100644
index 000000000000..79c5934d4776
--- /dev/null
+++ b/sound/soc/codecs/wm8400.h
@@ -0,0 +1,62 @@
+/*
+ * wm8400.h  --  audio driver for WM8400
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ *  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.
+ *
+ */
+
+#ifndef _WM8400_CODEC_H
+#define _WM8400_CODEC_H
+
+#define WM8400_MCLK_DIV 0
+#define WM8400_DACCLK_DIV 1
+#define WM8400_ADCCLK_DIV 2
+#define WM8400_BCLK_DIV 3
+
+#define WM8400_MCLK_DIV_1 0x400
+#define WM8400_MCLK_DIV_2 0x800
+
+#define WM8400_DAC_CLKDIV_1    0x00
+#define WM8400_DAC_CLKDIV_1_5  0x04
+#define WM8400_DAC_CLKDIV_2    0x08
+#define WM8400_DAC_CLKDIV_3    0x0c
+#define WM8400_DAC_CLKDIV_4    0x10
+#define WM8400_DAC_CLKDIV_5_5  0x14
+#define WM8400_DAC_CLKDIV_6    0x18
+
+#define WM8400_ADC_CLKDIV_1    0x00
+#define WM8400_ADC_CLKDIV_1_5  0x20
+#define WM8400_ADC_CLKDIV_2    0x40
+#define WM8400_ADC_CLKDIV_3    0x60
+#define WM8400_ADC_CLKDIV_4    0x80
+#define WM8400_ADC_CLKDIV_5_5  0xa0
+#define WM8400_ADC_CLKDIV_6    0xc0
+
+
+#define WM8400_BCLK_DIV_1                       (0x0 << 1)
+#define WM8400_BCLK_DIV_1_5                     (0x1 << 1)
+#define WM8400_BCLK_DIV_2                       (0x2 << 1)
+#define WM8400_BCLK_DIV_3                       (0x3 << 1)
+#define WM8400_BCLK_DIV_4                       (0x4 << 1)
+#define WM8400_BCLK_DIV_5_5                     (0x5 << 1)
+#define WM8400_BCLK_DIV_6                       (0x6 << 1)
+#define WM8400_BCLK_DIV_8                       (0x7 << 1)
+#define WM8400_BCLK_DIV_11                      (0x8 << 1)
+#define WM8400_BCLK_DIV_12                      (0x9 << 1)
+#define WM8400_BCLK_DIV_16                      (0xA << 1)
+#define WM8400_BCLK_DIV_22                      (0xB << 1)
+#define WM8400_BCLK_DIV_24                      (0xC << 1)
+#define WM8400_BCLK_DIV_32                      (0xD << 1)
+#define WM8400_BCLK_DIV_44                      (0xE << 1)
+#define WM8400_BCLK_DIV_48                      (0xF << 1)
+
+extern struct snd_soc_dai wm8400_dai;
+extern struct snd_soc_codec_device soc_codec_dev_wm8400;
+
+#endif
-- 
cgit v1.2.3


From f21cfb258df6dd3ea0b3e56d75c7e994edb81b35 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@igel.co.jp>
Date: Thu, 12 Mar 2009 21:05:42 +0900
Subject: irq: add remove_irq() for freeing of setup_irq() irqs

Impact: add new API

This patch adds a remove_irq() function for releasing
interrupts requested with setup_irq().

Without this patch we have no way of releasing such
interrupts since free_irq() today tries to kfree()
the irqaction passed with setup_irq().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
LKML-Reference: <20090312120542.2926.56609.sendpatchset@rx1.opensource.se>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/irq.h |  1 +
 kernel/irq/manage.c | 39 ++++++++++++++++++++++++++-------------
 2 files changed, 27 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/include/linux/irq.h b/include/linux/irq.h
index f899b502f186..56f9988362ec 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -236,6 +236,7 @@ typedef struct irq_desc		irq_desc_t;
 #include <asm/hw_irq.h>
 
 extern int setup_irq(unsigned int irq, struct irqaction *new);
+extern struct irqaction *remove_irq(unsigned int irq, void *dev_id);
 
 #ifdef CONFIG_GENERIC_HARDIRQS
 
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 52ee17135092..8b069a7046e9 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -551,20 +551,14 @@ int setup_irq(unsigned int irq, struct irqaction *act)
 }
 
 /**
- *	free_irq - free an interrupt
+ *	remove_irq - free an interrupt
  *	@irq: Interrupt line to free
  *	@dev_id: Device identity to free
  *
- *	Remove an interrupt handler. The handler is removed and if the
- *	interrupt line is no longer in use by any driver it is disabled.
- *	On a shared IRQ the caller must ensure the interrupt is disabled
- *	on the card it drives before calling this function. The function
- *	does not return until any executing interrupts for this IRQ
- *	have completed.
- *
- *	This function must not be called from interrupt context.
+ * Used to remove interrupts statically setup by the early boot process.
  */
-void free_irq(unsigned int irq, void *dev_id)
+
+struct irqaction *remove_irq(unsigned int irq, void *dev_id)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 	struct irqaction *action, **action_ptr;
@@ -573,7 +567,7 @@ void free_irq(unsigned int irq, void *dev_id)
 	WARN(in_interrupt(), "Trying to free IRQ %d from IRQ context!\n", irq);
 
 	if (!desc)
-		return;
+		return NULL;
 
 	spin_lock_irqsave(&desc->lock, flags);
 
@@ -589,7 +583,7 @@ void free_irq(unsigned int irq, void *dev_id)
 			WARN(1, "Trying to free already-free IRQ %d\n", irq);
 			spin_unlock_irqrestore(&desc->lock, flags);
 
-			return;
+			return NULL;
 		}
 
 		if (action->dev_id == dev_id)
@@ -636,7 +630,26 @@ void free_irq(unsigned int irq, void *dev_id)
 		local_irq_restore(flags);
 	}
 #endif
-	kfree(action);
+	return action;
+}
+
+/**
+ *	free_irq - free an interrupt allocated with request_irq
+ *	@irq: Interrupt line to free
+ *	@dev_id: Device identity to free
+ *
+ *	Remove an interrupt handler. The handler is removed and if the
+ *	interrupt line is no longer in use by any driver it is disabled.
+ *	On a shared IRQ the caller must ensure the interrupt is disabled
+ *	on the card it drives before calling this function. The function
+ *	does not return until any executing interrupts for this IRQ
+ *	have completed.
+ *
+ *	This function must not be called from interrupt context.
+ */
+void free_irq(unsigned int irq, void *dev_id)
+{
+	kfree(remove_irq(irq, dev_id));
 }
 EXPORT_SYMBOL(free_irq);
 
-- 
cgit v1.2.3


From cbf94f06824780183e4bba165c7c29d5c7bd9a51 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@igel.co.jp>
Date: Thu, 12 Mar 2009 21:05:51 +0900
Subject: irq: match remove_irq() args with setup_irq()

Modify remove_irq() to match setup_irq().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
LKML-Reference: <20090312120551.2926.43942.sendpatchset@rx1.opensource.se>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/irq.h |  2 +-
 kernel/irq/manage.c | 26 +++++++++++++++++---------
 2 files changed, 18 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 56f9988362ec..737eafbc1f3d 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -236,7 +236,7 @@ typedef struct irq_desc		irq_desc_t;
 #include <asm/hw_irq.h>
 
 extern int setup_irq(unsigned int irq, struct irqaction *new);
-extern struct irqaction *remove_irq(unsigned int irq, void *dev_id);
+extern void remove_irq(unsigned int irq, struct irqaction *act);
 
 #ifdef CONFIG_GENERIC_HARDIRQS
 
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 8b069a7046e9..fc16570c9b46 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -550,15 +550,11 @@ int setup_irq(unsigned int irq, struct irqaction *act)
 	return __setup_irq(irq, desc, act);
 }
 
-/**
- *	remove_irq - free an interrupt
- *	@irq: Interrupt line to free
- *	@dev_id: Device identity to free
- *
- * Used to remove interrupts statically setup by the early boot process.
+ /*
+ * Internal function to unregister an irqaction - used to free
+ * regular and special interrupts that are part of the architecture.
  */
-
-struct irqaction *remove_irq(unsigned int irq, void *dev_id)
+static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 	struct irqaction *action, **action_ptr;
@@ -633,6 +629,18 @@ struct irqaction *remove_irq(unsigned int irq, void *dev_id)
 	return action;
 }
 
+/**
+ *	remove_irq - free an interrupt
+ *	@irq: Interrupt line to free
+ *	@act: irqaction for the interrupt
+ *
+ * Used to remove interrupts statically setup by the early boot process.
+ */
+void remove_irq(unsigned int irq, struct irqaction *act)
+{
+	__free_irq(irq, act->dev_id);
+}
+
 /**
  *	free_irq - free an interrupt allocated with request_irq
  *	@irq: Interrupt line to free
@@ -649,7 +657,7 @@ struct irqaction *remove_irq(unsigned int irq, void *dev_id)
  */
 void free_irq(unsigned int irq, void *dev_id)
 {
-	kfree(remove_irq(irq, dev_id));
+	kfree(__free_irq(irq, dev_id));
 }
 EXPORT_SYMBOL(free_irq);
 
-- 
cgit v1.2.3


From 881a256d84e658d14ca1c162fe56e9cbbb1cdd49 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <matthew@wil.cx>
Date: Wed, 31 Dec 2008 13:12:46 -0500
Subject: [SCSI] Add VPD helper

Based on prior work by Martin Petersen and James Bottomley, this patch
adds a generic helper for retrieving VPD pages from SCSI devices.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/scsi.c        | 104 +++++++++++++++++++++++++++++++++++++++++++++
 include/scsi/scsi_device.h |   1 +
 2 files changed, 105 insertions(+)

(limited to 'include')

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index cbcd3f681b62..a2ef03243a2c 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -966,6 +966,110 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth)
 }
 EXPORT_SYMBOL(scsi_track_queue_full);
 
+/**
+ * scsi_vpd_inquiry - Request a device provide us with a VPD page
+ * @sdev: The device to ask
+ * @buffer: Where to put the result
+ * @page: Which Vital Product Data to return
+ * @len: The length of the buffer
+ *
+ * This is an internal helper function.  You probably want to use
+ * scsi_get_vpd_page instead.
+ *
+ * Returns 0 on success or a negative error number.
+ */
+static int scsi_vpd_inquiry(struct scsi_device *sdev, unsigned char *buffer,
+							u8 page, unsigned len)
+{
+	int result;
+	unsigned char cmd[16];
+
+	cmd[0] = INQUIRY;
+	cmd[1] = 1;		/* EVPD */
+	cmd[2] = page;
+	cmd[3] = len >> 8;
+	cmd[4] = len & 0xff;
+	cmd[5] = 0;		/* Control byte */
+
+	/*
+	 * I'm not convinced we need to try quite this hard to get VPD, but
+	 * all the existing users tried this hard.
+	 */
+	result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buffer,
+				  len + 4, NULL, 30 * HZ, 3, NULL);
+	if (result)
+		return result;
+
+	/* Sanity check that we got the page back that we asked for */
+	if (buffer[1] != page)
+		return -EIO;
+
+	return 0;
+}
+
+/**
+ * scsi_get_vpd_page - Get Vital Product Data from a SCSI device
+ * @sdev: The device to ask
+ * @page: Which Vital Product Data to return
+ *
+ * SCSI devices may optionally supply Vital Product Data.  Each 'page'
+ * of VPD is defined in the appropriate SCSI document (eg SPC, SBC).
+ * If the device supports this VPD page, this routine returns a pointer
+ * to a buffer containing the data from that page.  The caller is
+ * responsible for calling kfree() on this pointer when it is no longer
+ * needed.  If we cannot retrieve the VPD page this routine returns %NULL.
+ */
+unsigned char *scsi_get_vpd_page(struct scsi_device *sdev, u8 page)
+{
+	int i, result;
+	unsigned int len;
+	unsigned char *buf = kmalloc(259, GFP_KERNEL);
+
+	if (!buf)
+		return NULL;
+
+	/* Ask for all the pages supported by this device */
+	result = scsi_vpd_inquiry(sdev, buf, 0, 255);
+	if (result)
+		goto fail;
+
+	/* If the user actually wanted this page, we can skip the rest */
+	if (page == 0)
+		return buf;
+
+	for (i = 0; i < buf[3]; i++)
+		if (buf[i + 4] == page)
+			goto found;
+	/* The device claims it doesn't support the requested page */
+	goto fail;
+
+ found:
+	result = scsi_vpd_inquiry(sdev, buf, page, 255);
+	if (result)
+		goto fail;
+
+	/*
+	 * Some pages are longer than 255 bytes.  The actual length of
+	 * the page is returned in the header.
+	 */
+	len = (buf[2] << 8) | buf[3];
+	if (len <= 255)
+		return buf;
+
+	kfree(buf);
+	buf = kmalloc(len + 4, GFP_KERNEL);
+	result = scsi_vpd_inquiry(sdev, buf, page, len);
+	if (result)
+		goto fail;
+
+	return buf;
+
+ fail:
+	kfree(buf);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(scsi_get_vpd_page);
+
 /**
  * scsi_device_get  -  get an additional reference to a scsi_device
  * @sdev:	device to get a reference to
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 01a4c58f8bad..9576690901dd 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -340,6 +340,7 @@ extern int scsi_mode_select(struct scsi_device *sdev, int pf, int sp,
 			    struct scsi_sense_hdr *);
 extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
 				int retries, struct scsi_sense_hdr *sshdr);
+extern unsigned char *scsi_get_vpd_page(struct scsi_device *, u8 page);
 extern int scsi_device_set_state(struct scsi_device *sdev,
 				 enum scsi_device_state state);
 extern struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type,
-- 
cgit v1.2.3


From 0762a4824d6c6f8eb5d2646dfda95581d99afaa5 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Mon, 12 Jan 2009 09:28:55 +0100
Subject: [SCSI] Check for deleted device in scsi_device_online()

scsi_device_online() is not just a negation of SDEV_OFFLINE,
also devices in state SDEV_DEL are actually offline.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/scsi/scsi_device.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 9576690901dd..15b09266b7ff 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -401,7 +401,8 @@ static inline unsigned int sdev_id(struct scsi_device *sdev)
  */
 static inline int scsi_device_online(struct scsi_device *sdev)
 {
-	return sdev->sdev_state != SDEV_OFFLINE;
+	return (sdev->sdev_state != SDEV_OFFLINE &&
+		sdev->sdev_state != SDEV_DEL);
 }
 static inline int scsi_device_blocked(struct scsi_device *sdev)
 {
-- 
cgit v1.2.3


From 1c9fbafc8c629c89183d6dccec67a8415513b0d1 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Sun, 4 Jan 2009 03:14:11 -0500
Subject: [SCSI] Remove SUGGEST flags

The SUGGEST_* flags in the SCSI command result have been out of fashion
for a while and we don't actually use them in the error handling.
Remove the remaining occurrences.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/s390/scsi/zfcp_fsf.c    |  1 -
 drivers/scsi/constants.c        | 13 +++----------
 drivers/scsi/hptiop.c           |  3 +--
 drivers/scsi/ips.c              |  3 +--
 drivers/scsi/libfc/fc_fcp.c     |  6 +++---
 drivers/scsi/lpfc/lpfc_scsi.c   |  6 +++---
 drivers/scsi/st.c               |  6 +++---
 drivers/usb/storage/transport.c |  2 +-
 include/scsi/scsi.h             | 11 -----------
 9 files changed, 15 insertions(+), 36 deletions(-)

(limited to 'include')

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index e6416f8541b0..babe1b8ba25e 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -2147,7 +2147,6 @@ static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
 
 	if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) {
 		set_host_byte(scpnt, DID_SOFT_ERROR);
-		set_driver_byte(scpnt, SUGGEST_RETRY);
 		goto skip_fsfstatus;
 	}
 
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index 4003deefb7d8..e79e18101f87 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -1373,21 +1373,14 @@ static const char * const driverbyte_table[]={
 "DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};
 #define NUM_DRIVERBYTE_STRS ARRAY_SIZE(driverbyte_table)
 
-static const char * const driversuggest_table[]={"SUGGEST_OK",
-"SUGGEST_RETRY", "SUGGEST_ABORT", "SUGGEST_REMAP", "SUGGEST_DIE",
-"SUGGEST_5", "SUGGEST_6", "SUGGEST_7", "SUGGEST_SENSE"};
-#define NUM_SUGGEST_STRS ARRAY_SIZE(driversuggest_table)
-
 void scsi_show_result(int result)
 {
 	int hb = host_byte(result);
-	int db = (driver_byte(result) & DRIVER_MASK);
-	int su = ((driver_byte(result) & SUGGEST_MASK) >> 4);
+	int db = driver_byte(result);
 
-	printk("Result: hostbyte=%s driverbyte=%s,%s\n",
+	printk("Result: hostbyte=%s driverbyte=%s\n",
 	       (hb < NUM_HOSTBYTE_STRS ? hostbyte_table[hb]     : "invalid"),
-	       (db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"),
-	       (su < NUM_SUGGEST_STRS ? driversuggest_table[su] : "invalid"));
+	       (db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"));
 }
 
 #else
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index 34be88d7afa5..af1f0af0c5ac 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -580,8 +580,7 @@ static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
 		break;
 
 	default:
-		scp->result = ((DRIVER_INVALID|SUGGEST_ABORT)<<24) |
-					(DID_ABORT<<16);
+		scp->result = DRIVER_INVALID << 24 | DID_ABORT << 16;
 		break;
 	}
 
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index ef683f0d2b5a..457d76a4cfe5 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -1004,8 +1004,7 @@ static int __ips_eh_reset(struct scsi_cmnd *SC)
 	DEBUG_VAR(1, "(%s%d) Failing active commands", ips_name, ha->host_num);
 
 	while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
-		scb->scsi_cmd->result =
-		    (DID_RESET << 16) | (SUGGEST_RETRY << 24);
+		scb->scsi_cmd->result = DID_RESET << 16;
 		scb->scsi_cmd->scsi_done(scb->scsi_cmd);
 		ips_freescb(ha, scb);
 	}
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 2a631d7dbcec..a070e5712439 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -259,7 +259,7 @@ static void fc_fcp_retry_cmd(struct fc_fcp_pkt *fsp)
 	}
 
 	fsp->state &= ~FC_SRB_ABORT_PENDING;
-	fsp->io_status = SUGGEST_RETRY << 24;
+	fsp->io_status = 0;
 	fsp->status_code = FC_ERROR;
 	fc_fcp_complete_locked(fsp);
 }
@@ -859,7 +859,7 @@ static void fc_fcp_complete_locked(struct fc_fcp_pkt *fsp)
 		    (!(fsp->scsi_comp_flags & FCP_RESID_UNDER) ||
 		     fsp->xfer_len < fsp->data_len - fsp->scsi_resid)) {
 			fsp->status_code = FC_DATA_UNDRUN;
-			fsp->io_status = SUGGEST_RETRY << 24;
+			fsp->io_status = 0;
 		}
 	}
 
@@ -1267,7 +1267,7 @@ static void fc_fcp_rec(struct fc_fcp_pkt *fsp)
 	rp = rport->dd_data;
 	if (!fsp->seq_ptr || rp->rp_state != RPORT_ST_READY) {
 		fsp->status_code = FC_HRD_ERROR;
-		fsp->io_status = SUGGEST_RETRY << 24;
+		fsp->io_status = 0;
 		fc_fcp_complete_locked(fsp);
 		return;
 	}
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b103b6ed4970..b1bd3fc7bae8 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1357,7 +1357,7 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd,
 
 		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
 				0x10, 0x1);
-		cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
+		cmd->result = DRIVER_SENSE << 24
 			| ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
 		phba->bg_guard_err_cnt++;
 		printk(KERN_ERR "BLKGRD: guard_tag error\n");
@@ -1368,7 +1368,7 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd,
 
 		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
 				0x10, 0x3);
-		cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
+		cmd->result = DRIVER_SENSE << 24
 			| ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
 
 		phba->bg_reftag_err_cnt++;
@@ -1380,7 +1380,7 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd,
 
 		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
 				0x10, 0x2);
-		cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
+		cmd->result = DRIVER_SENSE << 24
 			| ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
 
 		phba->bg_apptag_err_cnt++;
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index c6f19ee8f2cb..eb24efea8f14 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -374,9 +374,9 @@ static int st_chk_result(struct scsi_tape *STp, struct st_request * SRpnt)
 	if (!debugging) { /* Abnormal conditions for tape */
 		if (!cmdstatp->have_sense)
 			printk(KERN_WARNING
-			       "%s: Error %x (sugg. bt 0x%x, driver bt 0x%x, host bt 0x%x).\n",
-			       name, result, suggestion(result),
-			       driver_byte(result) & DRIVER_MASK, host_byte(result));
+			       "%s: Error %x (driver bt 0x%x, host bt 0x%x).\n",
+			       name, result, driver_byte(result),
+			       host_byte(result));
 		else if (cmdstatp->have_sense &&
 			 scode != NO_SENSE &&
 			 scode != RECOVERED_ERROR &&
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index fb65d221cedf..02e30a3ce7bf 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -781,7 +781,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
 	/* Did we transfer less than the minimum amount required? */
 	if ((srb->result == SAM_STAT_GOOD || srb->sense_buffer[2] == 0) &&
 			scsi_bufflen(srb) - scsi_get_resid(srb) < srb->underflow)
-		srb->result = (DID_ERROR << 16) | (SUGGEST_RETRY << 24);
+		srb->result = DID_ERROR << 16;
 
 	last_sector_hacks(us, srb);
 	return;
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index a109165714d6..815d4047c4ce 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -402,16 +402,6 @@ static inline int scsi_is_wlun(unsigned int lun)
 #define DRIVER_HARD         0x07
 #define DRIVER_SENSE	    0x08
 
-#define SUGGEST_RETRY       0x10
-#define SUGGEST_ABORT       0x20
-#define SUGGEST_REMAP       0x30
-#define SUGGEST_DIE         0x40
-#define SUGGEST_SENSE       0x80
-#define SUGGEST_IS_OK       0xff
-
-#define DRIVER_MASK         0x0f
-#define SUGGEST_MASK        0xf0
-
 /*
  * Internal return values.
  */
@@ -447,7 +437,6 @@ static inline int scsi_is_wlun(unsigned int lun)
 #define msg_byte(result)    (((result) >> 8) & 0xff)
 #define host_byte(result)   (((result) >> 16) & 0xff)
 #define driver_byte(result) (((result) >> 24) & 0xff)
-#define suggestion(result)  (driver_byte(result) & SUGGEST_MASK)
 
 static inline void set_msg_byte(struct scsi_cmnd *cmd, char status)
 {
-- 
cgit v1.2.3


From 71969fd9e2c523d22bf1742eb31f1562247710eb Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 16:50:02 +0200
Subject: [SCSI] major.h: char-major number for OSD device driver

Allocate major 260 for osd.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
CC: Torben Mathiasen <device@lanana.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 Documentation/devices.txt | 6 ++++++
 include/linux/major.h     | 1 +
 2 files changed, 7 insertions(+)

(limited to 'include')

diff --git a/Documentation/devices.txt b/Documentation/devices.txt
index 2be08240ee80..62254d4510c6 100644
--- a/Documentation/devices.txt
+++ b/Documentation/devices.txt
@@ -3145,6 +3145,12 @@ Your cooperation is appreciated.
 		  1 = /dev/blockrom1	Second ROM card's translation layer interface
 		  ...
 
+260 char	OSD (Object-based-device) SCSI Device
+		  0 = /dev/osd0		First OSD Device
+		  1 = /dev/osd1		Second OSD Device
+		  ...
+		  255 = /dev/osd255	256th OSD Device
+
  ****	ADDITIONAL /dev DIRECTORY ENTRIES
 
 This section details additional entries that should or may exist in
diff --git a/include/linux/major.h b/include/linux/major.h
index 88249452b935..058ec15dd060 100644
--- a/include/linux/major.h
+++ b/include/linux/major.h
@@ -171,5 +171,6 @@
 #define VIOTAPE_MAJOR		230
 
 #define BLOCK_EXT_MAJOR		259
+#define SCSI_OSD_MAJOR		260	/* open-osd's OSD scsi device */
 
 #endif
-- 
cgit v1.2.3


From 82443a58d361123d418033e9e32ac29a842fce68 Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 16:51:33 +0200
Subject: [SCSI] add OSD_TYPE

- Define the OSD_TYPE scsi device and let it show up in scans

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/scsi_scan.c | 1 +
 include/scsi/scsi.h      | 1 +
 2 files changed, 2 insertions(+)

(limited to 'include')

diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 8f4de20c9deb..a14d245a66b8 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -797,6 +797,7 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
 	case TYPE_ENCLOSURE:
 	case TYPE_COMM:
 	case TYPE_RAID:
+	case TYPE_OSD:
 		sdev->writeable = 1;
 		break;
 	case TYPE_ROM:
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 815d4047c4ce..80d7f60e2663 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -263,6 +263,7 @@ static inline int scsi_status_is_good(int status)
 #define TYPE_RAID           0x0c
 #define TYPE_ENCLOSURE      0x0d    /* Enclosure Services Device */
 #define TYPE_RBC	    0x0e
+#define TYPE_OSD            0x11
 #define TYPE_NO_LUN         0x7f
 
 /* SCSI protocols; these are taken from SPC-3 section 7.5 */
-- 
cgit v1.2.3


From de258bf5e63863f42e0f9a7c5ffd29916a41e399 Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 16:54:10 +0200
Subject: [SCSI] libosd: OSDv1 Headers

Headers only patch.

osd_protocol.h
	Contains a C-fied definition of the T10 OSD standard
osd_types.h
	Contains CPU order common used types
osd_initiator.h
	API definition of the osd_initiator library
osd_sec.h
	Contains High level API for the security manager.

[Note that checkpatch spews errors on things that are valid in this context
and will not be fixed]

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Reviewed-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/scsi/osd_initiator.h | 332 +++++++++++++++++++++++++++++
 include/scsi/osd_protocol.h  | 497 +++++++++++++++++++++++++++++++++++++++++++
 include/scsi/osd_sec.h       |  45 ++++
 include/scsi/osd_types.h     |  40 ++++
 4 files changed, 914 insertions(+)
 create mode 100644 include/scsi/osd_initiator.h
 create mode 100644 include/scsi/osd_protocol.h
 create mode 100644 include/scsi/osd_sec.h
 create mode 100644 include/scsi/osd_types.h

(limited to 'include')

diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
new file mode 100644
index 000000000000..1d92247f820b
--- /dev/null
+++ b/include/scsi/osd_initiator.h
@@ -0,0 +1,332 @@
+/*
+ * osd_initiator.h - OSD initiator API definition
+ *
+ * Copyright (C) 2008 Panasas Inc.  All rights reserved.
+ *
+ * Authors:
+ *   Boaz Harrosh <bharrosh@panasas.com>
+ *   Benny Halevy <bhalevy@panasas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ *
+ */
+#ifndef __OSD_INITIATOR_H__
+#define __OSD_INITIATOR_H__
+
+#include "osd_protocol.h"
+#include "osd_types.h"
+
+#include <linux/blkdev.h>
+
+/* Note: "NI" in comments below means "Not Implemented yet" */
+
+/*
+ * Object-based Storage Device.
+ * This object represents an OSD device.
+ * It is not a full linux device in any way. It is only
+ * a place to hang resources associated with a Linux
+ * request Q and some default properties.
+ */
+struct osd_dev {
+	struct scsi_device *scsi_device;
+	unsigned def_timeout;
+};
+
+void osd_dev_init(struct osd_dev *od, struct scsi_device *scsi_device);
+void osd_dev_fini(struct osd_dev *od);
+
+struct osd_request;
+typedef void (osd_req_done_fn)(struct osd_request *or, void *private);
+
+struct osd_request {
+	struct osd_cdb cdb;
+	struct osd_data_out_integrity_info out_data_integ;
+	struct osd_data_in_integrity_info in_data_integ;
+
+	struct osd_dev *osd_dev;
+	struct request *request;
+
+	struct _osd_req_data_segment {
+		void *buff;
+		unsigned alloc_size; /* 0 here means: don't call kfree */
+		unsigned total_bytes;
+	} set_attr, enc_get_attr, get_attr;
+
+	struct _osd_io_info {
+		struct bio *bio;
+		u64 total_bytes;
+		struct request *req;
+		struct _osd_req_data_segment *last_seg;
+		u8 *pad_buff;
+	} out, in;
+
+	gfp_t alloc_flags;
+	unsigned timeout;
+	unsigned retries;
+	u8 sense[OSD_MAX_SENSE_LEN];
+	enum osd_attributes_mode attributes_mode;
+
+	osd_req_done_fn *async_done;
+	void *async_private;
+	int async_error;
+};
+
+/*
+ * How to use the osd library:
+ *
+ * osd_start_request
+ *	Allocates a request.
+ *
+ * osd_req_*
+ *	Call one of, to encode the desired operation.
+ *
+ * osd_add_{get,set}_attr
+ *	Optionally add attributes to the CDB, list or page mode.
+ *
+ * osd_finalize_request
+ *	Computes final data out/in offsets and signs the request,
+ *	making it ready for execution.
+ *
+ * osd_execute_request
+ *	May be called to execute it through the block layer. Other wise submit
+ *	the associated block request in some other way.
+ *
+ * After execution:
+ * osd_req_decode_sense
+ *	Decodes sense information to verify execution results.
+ *
+ * osd_req_decode_get_attr
+ *	Retrieve osd_add_get_attr_list() values if used.
+ *
+ * osd_end_request
+ *	Must be called to deallocate the request.
+ */
+
+/**
+ * osd_start_request - Allocate and initialize an osd_request
+ *
+ * @osd_dev:    OSD device that holds the scsi-device and default values
+ *              that the request is associated with.
+ * @gfp:        The allocation flags to use for request allocation, and all
+ *              subsequent allocations. This will be stored at
+ *              osd_request->alloc_flags, can be changed by user later
+ *
+ * Allocate osd_request and initialize all members to the
+ * default/initial state.
+ */
+struct osd_request *osd_start_request(struct osd_dev *od, gfp_t gfp);
+
+enum osd_req_options {
+	OSD_REQ_FUA = 0x08,	/* Force Unit Access */
+	OSD_REQ_DPO = 0x10,	/* Disable Page Out */
+
+	OSD_REQ_BYPASS_TIMESTAMPS = 0x80,
+};
+
+/**
+ * osd_finalize_request - Sign request and prepare request for execution
+ *
+ * @or:		osd_request to prepare
+ * @options:	combination of osd_req_options bit flags or 0.
+ * @cap:	A Pointer to an OSD_CAP_LEN bytes buffer that is received from
+ *              The security manager as capabilities for this cdb.
+ * @cap_key:	The cryptographic key used to sign the cdb/data. Can be null
+ *              if NOSEC is used.
+ *
+ * The actual request and bios are only allocated here, so are the get_attr
+ * buffers that will receive the returned attributes. Copy's @cap to cdb.
+ * Sign the cdb/data with @cap_key.
+ */
+int osd_finalize_request(struct osd_request *or,
+	u8 options, const void *cap, const u8 *cap_key);
+
+/**
+ * osd_execute_request - Execute the request synchronously through block-layer
+ *
+ * @or:		osd_request to Executed
+ *
+ * Calls blk_execute_rq to q the command and waits for completion.
+ */
+int osd_execute_request(struct osd_request *or);
+
+/**
+ * osd_execute_request_async - Execute the request without waitting.
+ *
+ * @or:                      - osd_request to Executed
+ * @done: (Optional)         - Called at end of execution
+ * @private:                 - Will be passed to @done function
+ *
+ * Calls blk_execute_rq_nowait to queue the command. When execution is done
+ * optionally calls @done with @private as parameter. @or->async_error will
+ * have the return code
+ */
+int osd_execute_request_async(struct osd_request *or,
+	osd_req_done_fn *done, void *private);
+
+/**
+ * osd_end_request - return osd_request to free store
+ *
+ * @or:		osd_request to free
+ *
+ * Deallocate all osd_request resources (struct req's, BIOs, buffers, etc.)
+ */
+void osd_end_request(struct osd_request *or);
+
+/*
+ * CDB Encoding
+ *
+ * Note: call only one of the following methods.
+ */
+
+/*
+ * Device commands
+ */
+void osd_req_set_master_seed_xchg(struct osd_request *or, ...);/* NI */
+void osd_req_set_master_key(struct osd_request *or, ...);/* NI */
+
+void osd_req_format(struct osd_request *or, u64 tot_capacity);
+
+/* list all partitions
+ * @list header must be initialized to zero on first run.
+ *
+ * Call osd_is_obj_list_done() to find if we got the complete list.
+ */
+int osd_req_list_dev_partitions(struct osd_request *or,
+	osd_id initial_id, struct osd_obj_id_list *list, unsigned nelem);
+
+void osd_req_flush_obsd(struct osd_request *or,
+	enum osd_options_flush_scope_values);
+
+void osd_req_perform_scsi_command(struct osd_request *or,
+	const u8 *cdb, ...);/* NI */
+void osd_req_task_management(struct osd_request *or, ...);/* NI */
+
+/*
+ * Partition commands
+ */
+void osd_req_create_partition(struct osd_request *or, osd_id partition);
+void osd_req_remove_partition(struct osd_request *or, osd_id partition);
+
+void osd_req_set_partition_key(struct osd_request *or,
+	osd_id partition, u8 new_key_id[OSD_CRYPTO_KEYID_SIZE],
+	u8 seed[OSD_CRYPTO_SEED_SIZE]);/* NI */
+
+/* list all collections in the partition
+ * @list header must be init to zero on first run.
+ *
+ * Call osd_is_obj_list_done() to find if we got the complete list.
+ */
+int osd_req_list_partition_collections(struct osd_request *or,
+	osd_id partition, osd_id initial_id, struct osd_obj_id_list *list,
+	unsigned nelem);
+
+/* list all objects in the partition
+ * @list header must be init to zero on first run.
+ *
+ * Call osd_is_obj_list_done() to find if we got the complete list.
+ */
+int osd_req_list_partition_objects(struct osd_request *or,
+	osd_id partition, osd_id initial_id, struct osd_obj_id_list *list,
+	unsigned nelem);
+
+void osd_req_flush_partition(struct osd_request *or,
+	osd_id partition, enum osd_options_flush_scope_values);
+
+/*
+ * Collection commands
+ */
+void osd_req_create_collection(struct osd_request *or,
+	const struct osd_obj_id *);/* NI */
+void osd_req_remove_collection(struct osd_request *or,
+	const struct osd_obj_id *);/* NI */
+
+/* list all objects in the collection */
+int osd_req_list_collection_objects(struct osd_request *or,
+	const struct osd_obj_id *, osd_id initial_id,
+	struct osd_obj_id_list *list, unsigned nelem);
+
+/* V2 only filtered list of objects in the collection */
+void osd_req_query(struct osd_request *or, ...);/* NI */
+
+void osd_req_flush_collection(struct osd_request *or,
+	const struct osd_obj_id *, enum osd_options_flush_scope_values);
+
+void osd_req_get_member_attrs(struct osd_request *or, ...);/* V2-only NI */
+void osd_req_set_member_attrs(struct osd_request *or, ...);/* V2-only NI */
+
+/*
+ * Object commands
+ */
+void osd_req_create_object(struct osd_request *or, struct osd_obj_id *);
+void osd_req_remove_object(struct osd_request *or, struct osd_obj_id *);
+
+void osd_req_write(struct osd_request *or,
+	const struct osd_obj_id *, struct bio *data_out, u64 offset);
+void osd_req_append(struct osd_request *or,
+	const struct osd_obj_id *, struct bio *data_out);/* NI */
+void osd_req_create_write(struct osd_request *or,
+	const struct osd_obj_id *, struct bio *data_out, u64 offset);/* NI */
+void osd_req_clear(struct osd_request *or,
+	const struct osd_obj_id *, u64 offset, u64 len);/* NI */
+void osd_req_punch(struct osd_request *or,
+	const struct osd_obj_id *, u64 offset, u64 len);/* V2-only NI */
+
+void osd_req_flush_object(struct osd_request *or,
+	const struct osd_obj_id *, enum osd_options_flush_scope_values,
+	/*V2*/ u64 offset, /*V2*/ u64 len);
+
+void osd_req_read(struct osd_request *or,
+	const struct osd_obj_id *, struct bio *data_in, u64 offset);
+
+/*
+ * Root/Partition/Collection/Object Attributes commands
+ */
+
+/* get before set */
+void osd_req_get_attributes(struct osd_request *or, const struct osd_obj_id *);
+
+/* set before get */
+void osd_req_set_attributes(struct osd_request *or, const struct osd_obj_id *);
+
+/*
+ * Attributes appended to most commands
+ */
+
+/* Attributes List mode (or V2 CDB) */
+  /*
+   * TODO: In ver2 if at finalize time only one attr was set and no gets,
+   * then the Attributes CDB mode is used automatically to save IO.
+   */
+
+/* set a list of attributes. */
+int osd_req_add_set_attr_list(struct osd_request *or,
+	const struct osd_attr *, unsigned nelem);
+
+/* get a list of attributes */
+int osd_req_add_get_attr_list(struct osd_request *or,
+	const struct osd_attr *, unsigned nelem);
+
+/*
+ * Attributes list decoding
+ * Must be called after osd_request.request was executed
+ * It is called in a loop to decode the returned get_attr
+ * (see osd_add_get_attr)
+ */
+int osd_req_decode_get_attr_list(struct osd_request *or,
+	struct osd_attr *, int *nelem, void **iterator);
+
+/* Attributes Page mode */
+
+/*
+ * Read an attribute page and optionally set one attribute
+ *
+ * Retrieves the attribute page directly to a user buffer.
+ * @attr_page_data shall stay valid until end of execution.
+ * See osd_attributes.h for common page structures
+ */
+int osd_req_add_get_attr_page(struct osd_request *or,
+	u32 page_id, void *attr_page_data, unsigned max_page_len,
+	const struct osd_attr *set_one);
+
+#endif /* __OSD_LIB_H__ */
diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h
new file mode 100644
index 000000000000..ce1a8771ea71
--- /dev/null
+++ b/include/scsi/osd_protocol.h
@@ -0,0 +1,497 @@
+/*
+ * osd_protocol.h - OSD T10 standard C definitions.
+ *
+ * Copyright (C) 2008 Panasas Inc.  All rights reserved.
+ *
+ * Authors:
+ *   Boaz Harrosh <bharrosh@panasas.com>
+ *   Benny Halevy <bhalevy@panasas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ *
+ * This file contains types and constants that are defined by the protocol
+ * Note: All names and symbols are taken from the OSD standard's text.
+ */
+#ifndef __OSD_PROTOCOL_H__
+#define __OSD_PROTOCOL_H__
+
+#include <linux/types.h>
+#include <asm/unaligned.h>
+#include <scsi/scsi.h>
+
+enum {
+	OSDv1_ADDITIONAL_CDB_LENGTH = 192,
+	OSDv1_TOTAL_CDB_LEN = OSDv1_ADDITIONAL_CDB_LENGTH + 8,
+	OSDv1_CAP_LEN = 80,
+	/* Latest supported version */
+	OSD_ADDITIONAL_CDB_LENGTH = OSDv1_ADDITIONAL_CDB_LENGTH,
+	OSD_TOTAL_CDB_LEN = OSDv1_TOTAL_CDB_LEN,
+	OSD_CAP_LEN = OSDv1_CAP_LEN,
+
+	OSD_SYSTEMID_LEN = 20,
+	OSD_CRYPTO_KEYID_SIZE = 20,
+	OSD_CRYPTO_SEED_SIZE = 4,
+	OSD_CRYPTO_NONCE_SIZE = 12,
+	OSD_MAX_SENSE_LEN = 252, /* from SPC-3 */
+
+	OSD_PARTITION_FIRST_ID = 0x10000,
+	OSD_OBJECT_FIRST_ID = 0x10000,
+};
+
+/* (osd-r10 5.2.4)
+ * osd2r03: 5.2.3 Caching control bits
+ */
+enum osd_options_byte {
+	OSD_CDB_FUA = 0x08,	/* Force Unit Access */
+	OSD_CDB_DPO = 0x10,	/* Disable Page Out */
+};
+
+/*
+ * osd2r03: 5.2.5 Isolation.
+ * First 3 bits, V2-only.
+ * Also for attr 110h "default isolation method" at Root Information page
+ */
+enum osd_options_byte_isolation {
+	OSD_ISOLATION_DEFAULT = 0,
+	OSD_ISOLATION_NONE = 1,
+	OSD_ISOLATION_STRICT = 2,
+	OSD_ISOLATION_RANGE = 4,
+	OSD_ISOLATION_FUNCTIONAL = 5,
+	OSD_ISOLATION_VENDOR = 7,
+};
+
+/* (osd-r10: 6.7)
+ * osd2r03: 6.8 FLUSH, FLUSH COLLECTION, FLUSH OSD, FLUSH PARTITION
+ */
+enum osd_options_flush_scope_values {
+	OSD_CDB_FLUSH_ALL = 0,
+	OSD_CDB_FLUSH_ATTR_ONLY = 1,
+
+	OSD_CDB_FLUSH_ALL_RECURSIVE = 2,
+	/* V2-only */
+	OSD_CDB_FLUSH_ALL_RANGE = 2,
+};
+
+/* osd2r03: 5.2.10 Timestamps control */
+enum {
+	OSD_CDB_NORMAL_TIMESTAMPS = 0,
+	OSD_CDB_BYPASS_TIMESTAMPS = 0x7f,
+};
+
+/* (osd-r10: 5.2.2.1)
+ * osd2r03: 5.2.4.1 Get and set attributes CDB format selection
+ *	2 bits at second nibble of command_specific_options byte
+ */
+enum osd_attributes_mode {
+	/* V2-only */
+	OSD_CDB_SET_ONE_ATTR = 0x10,
+
+	OSD_CDB_GET_ATTR_PAGE_SET_ONE = 0x20,
+	OSD_CDB_GET_SET_ATTR_LISTS = 0x30,
+
+	OSD_CDB_GET_SET_ATTR_MASK = 0x30,
+};
+
+/* (osd-r10: 4.12.5)
+ * osd2r03: 4.14.5 Data-In and Data-Out buffer offsets
+ *	byte offset = mantissa * (2^(exponent+8))
+ *	struct {
+ *		unsigned mantissa: 28;
+ *		int exponent: 04;
+ *	}
+ */
+typedef __be32 __bitwise osd_cdb_offset;
+
+enum {
+	OSD_OFFSET_UNUSED = 0xFFFFFFFF,
+	OSD_OFFSET_MAX_BITS = 28,
+
+	OSDv1_OFFSET_MIN_SHIFT = 8,
+	OSD_OFFSET_MAX_SHIFT = 16,
+};
+
+/* Return the smallest allowed encoded offset that contains @offset.
+ *
+ * The actual encoded offset returned is @offset + *padding.
+ * (up to max_shift, non-inclusive)
+ */
+osd_cdb_offset __osd_encode_offset(u64 offset, unsigned *padding,
+	int min_shift, int max_shift);
+
+/* Minimum alignment is 256 bytes
+ * Note: Seems from std v1 that exponent can be from 0+8 to 0xE+8 (inclusive)
+ * which is 8 to 23 but IBM code restricts it to 16, so be it.
+ */
+static inline osd_cdb_offset osd_encode_offset_v1(u64 offset, unsigned *padding)
+{
+	return __osd_encode_offset(offset, padding,
+				OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
+}
+
+/* osd2r03: 5.2.1 Overview */
+struct osd_cdb_head {
+	struct scsi_varlen_cdb_hdr varlen_cdb;
+/*10*/	u8		options;
+	u8		command_specific_options;
+	u8		timestamp_control;
+/*13*/	u8		reserved1[3];
+/*16*/	__be64		partition;
+/*24*/	__be64		object;
+/*32*/	union { /* V1 vs V2 alignment differences */
+		struct __osdv1_cdb_addr_len {
+/*32*/			__be32 		list_identifier;/* Rarely used */
+/*36*/			__be64		length;
+/*44*/			__be64		start_address;
+		} __packed v1;
+	};
+/*52*/	union { /* selected attributes mode Page/List/Single */
+		struct osd_attributes_page_mode {
+/*52*/			__be32		get_attr_page;
+/*56*/			__be32		get_attr_alloc_length;
+/*60*/			osd_cdb_offset	get_attr_offset;
+
+/*64*/			__be32		set_attr_page;
+/*68*/			__be32		set_attr_id;
+/*72*/			__be32		set_attr_length;
+/*76*/			osd_cdb_offset	set_attr_offset;
+/*80*/		} __packed attrs_page;
+
+		struct osd_attributes_list_mode {
+/*52*/			__be32		get_attr_desc_bytes;
+/*56*/			osd_cdb_offset	get_attr_desc_offset;
+
+/*60*/			__be32		get_attr_alloc_length;
+/*64*/			osd_cdb_offset	get_attr_offset;
+
+/*68*/			__be32		set_attr_bytes;
+/*72*/			osd_cdb_offset	set_attr_offset;
+			__be32 not_used;
+/*80*/		} __packed attrs_list;
+
+		/* osd2r03:5.2.4.2 Set one attribute value using CDB fields */
+		struct osd_attributes_cdb_mode {
+/*52*/			__be32		set_attr_page;
+/*56*/			__be32		set_attr_id;
+/*60*/			__be16		set_attr_len;
+/*62*/			u8		set_attr_val[18];
+/*80*/		} __packed attrs_cdb;
+/*52*/		u8 get_set_attributes_parameters[28];
+	};
+} __packed;
+/*80*/
+
+/*160 v1*/
+struct osd_security_parameters {
+/*160*/u8	integrity_check_value[OSD_CRYPTO_KEYID_SIZE];
+/*180*/u8	request_nonce[OSD_CRYPTO_NONCE_SIZE];
+/*192*/osd_cdb_offset	data_in_integrity_check_offset;
+/*196*/osd_cdb_offset	data_out_integrity_check_offset;
+} __packed;
+/*200 v1*/
+
+struct osdv1_cdb {
+	struct osd_cdb_head h;
+	u8 caps[OSDv1_CAP_LEN];
+	struct osd_security_parameters sec_params;
+} __packed;
+
+struct osd_cdb {
+	union {
+		struct osdv1_cdb v1;
+		u8 buff[OSD_TOTAL_CDB_LEN];
+	};
+} __packed;
+
+static inline struct osd_cdb_head *osd_cdb_head(struct osd_cdb *ocdb)
+{
+	return (struct osd_cdb_head *)ocdb->buff;
+}
+
+/* define both version actions
+ * Ex name = FORMAT_OSD we have OSD_ACT_FORMAT_OSD && OSDv1_ACT_FORMAT_OSD
+ */
+#define OSD_ACT___(Name, Num) \
+	OSD_ACT_##Name = __constant_cpu_to_be16(0x8880 + Num), \
+	OSDv1_ACT_##Name = __constant_cpu_to_be16(0x8800 + Num),
+
+/* V2 only actions */
+#define OSD_ACT_V2(Name, Num) \
+	OSD_ACT_##Name = __constant_cpu_to_be16(0x8880 + Num),
+
+#define OSD_ACT_V1_V2(Name, Num1, Num2) \
+	OSD_ACT_##Name = __constant_cpu_to_be16(Num2), \
+	OSDv1_ACT_##Name = __constant_cpu_to_be16(Num1),
+
+enum osd_service_actions {
+	OSD_ACT_V2(OBJECT_STRUCTURE_CHECK,	0x00)
+	OSD_ACT___(FORMAT_OSD,			0x01)
+	OSD_ACT___(CREATE,			0x02)
+	OSD_ACT___(LIST,			0x03)
+	OSD_ACT_V2(PUNCH,			0x04)
+	OSD_ACT___(READ,			0x05)
+	OSD_ACT___(WRITE,			0x06)
+	OSD_ACT___(APPEND,			0x07)
+	OSD_ACT___(FLUSH,			0x08)
+	OSD_ACT_V2(CLEAR,			0x09)
+	OSD_ACT___(REMOVE,			0x0A)
+	OSD_ACT___(CREATE_PARTITION,		0x0B)
+	OSD_ACT___(REMOVE_PARTITION,		0x0C)
+	OSD_ACT___(GET_ATTRIBUTES,		0x0E)
+	OSD_ACT___(SET_ATTRIBUTES,		0x0F)
+	OSD_ACT___(CREATE_AND_WRITE,		0x12)
+	OSD_ACT___(CREATE_COLLECTION,		0x15)
+	OSD_ACT___(REMOVE_COLLECTION,		0x16)
+	OSD_ACT___(LIST_COLLECTION,		0x17)
+	OSD_ACT___(SET_KEY,			0x18)
+	OSD_ACT___(SET_MASTER_KEY,		0x19)
+	OSD_ACT___(FLUSH_COLLECTION,		0x1A)
+	OSD_ACT___(FLUSH_PARTITION,		0x1B)
+	OSD_ACT___(FLUSH_OSD,			0x1C)
+
+	OSD_ACT_V2(QUERY,			0x20)
+	OSD_ACT_V2(REMOVE_MEMBER_OBJECTS,	0x21)
+	OSD_ACT_V2(GET_MEMBER_ATTRIBUTES,	0x22)
+	OSD_ACT_V2(SET_MEMBER_ATTRIBUTES,	0x23)
+	OSD_ACT_V2(READ_MAP,			0x31)
+
+	OSD_ACT_V1_V2(PERFORM_SCSI_COMMAND,	0x8F7E, 0x8F7C)
+	OSD_ACT_V1_V2(SCSI_TASK_MANAGEMENT,	0x8F7F, 0x8F7D)
+	/* 0x8F80 to 0x8FFF are Vendor specific */
+};
+
+/* osd2r03: 7.1.3.2 List entry format for retrieving attributes */
+struct osd_attributes_list_attrid {
+	__be32 attr_page;
+	__be32 attr_id;
+} __packed;
+
+/*
+ * osd2r03: 7.1.3.3 List entry format for retrieved attributes and
+ *                  for setting attributes
+ */
+struct osd_attributes_list_element {
+	__be32 attr_page;
+	__be32 attr_id;
+	__be16 attr_bytes;
+	u8 attr_val[0];
+} __packed;
+
+enum {
+	OSDv1_ATTRIBUTES_ELEM_ALIGN = 1,
+};
+
+enum {
+	OSD_ATTR_LIST_ALL_PAGES = 0xFFFFFFFF,
+	OSD_ATTR_LIST_ALL_IN_PAGE = 0xFFFFFFFF,
+};
+
+static inline unsigned osdv1_attr_list_elem_size(unsigned len)
+{
+	return ALIGN(len + sizeof(struct osd_attributes_list_element),
+		     OSDv1_ATTRIBUTES_ELEM_ALIGN);
+}
+
+/*
+ * osd2r03: 7.1.3 OSD attributes lists (Table 184) — List type values
+ */
+enum osd_attr_list_types {
+	OSD_ATTR_LIST_GET = 0x1, 	/* descriptors only */
+	OSD_ATTR_LIST_SET_RETRIEVE = 0x9, /*descriptors/values variable-length*/
+	OSD_V2_ATTR_LIST_MULTIPLE = 0xE,  /* ver2, Multiple Objects lists*/
+	OSD_V1_ATTR_LIST_CREATE_MULTIPLE = 0xF,/*ver1, used by create_multple*/
+};
+
+/* osd2r03: 7.1.3.4 Multi-object retrieved attributes format */
+struct osd_attributes_list_multi_header {
+	__be64 object_id;
+	u8 object_type; /* object_type enum below */
+	u8 reserved[5];
+	__be16 list_bytes;
+	/* followed by struct osd_attributes_list_element's */
+};
+
+struct osdv1_attributes_list_header {
+	u8 type;	/* low 4-bit only */
+	u8 pad;
+	__be16 list_bytes; /* Initiator shall set to Zero. Only set by target */
+	/*
+	 * type=9 followed by struct osd_attributes_list_element's
+	 * type=E followed by struct osd_attributes_list_multi_header's
+	 */
+} __packed;
+
+static inline unsigned osdv1_list_size(struct osdv1_attributes_list_header *h)
+{
+	return be16_to_cpu(h->list_bytes);
+}
+
+/* (osd-r10 6.13)
+ * osd2r03: 6.15 LIST (Table 79) LIST command parameter data.
+ *	for root_lstchg below
+ */
+enum {
+	OSD_OBJ_ID_LIST_PAR = 0x1, /* V1-only. Not used in V2 */
+	OSD_OBJ_ID_LIST_LSTCHG = 0x2,
+};
+
+/*
+ * osd2r03: 6.15.2 LIST command parameter data
+ * (Also for LIST COLLECTION)
+ */
+struct osd_obj_id_list {
+	__be64 list_bytes; /* bytes in list excluding list_bytes (-8) */
+	__be64 continuation_id;
+	__be32 list_identifier;
+	u8 pad[3];
+	u8 root_lstchg;
+	__be64 object_ids[0];
+} __packed;
+
+static inline bool osd_is_obj_list_done(struct osd_obj_id_list *list,
+	bool *is_changed)
+{
+	*is_changed = (0 != (list->root_lstchg & OSD_OBJ_ID_LIST_LSTCHG));
+	return 0 != list->continuation_id;
+}
+
+/*
+ * osd2r03: 4.12.4.5 The ALLDATA security method
+ */
+struct osd_data_out_integrity_info {
+	__be64 data_bytes;
+	__be64 set_attributes_bytes;
+	__be64 get_attributes_bytes;
+	__be64 integrity_check_value;
+} __packed;
+
+struct osd_data_in_integrity_info {
+	__be64 data_bytes;
+	__be64 retrieved_attributes_bytes;
+	__be64 integrity_check_value;
+} __packed;
+
+struct osd_timestamp {
+	u8 time[6]; /* number of milliseconds since 1/1/1970 UT (big endian) */
+} __packed;
+/* FIXME: define helper functions to convert to/from osd time format */
+
+/*
+ * Capability & Security definitions
+ * osd2r03: 4.11.2.2 Capability format
+ * osd2r03: 5.2.8 Security parameters
+ */
+
+struct osd_key_identifier {
+	u8 id[7]; /* if you know why 7 please email bharrosh@panasas.com */
+} __packed;
+
+/* for osd_capability.format */
+enum {
+	OSD_SEC_CAP_FORMAT_NO_CAPS = 0,
+	OSD_SEC_CAP_FORMAT_VER1 = 1,
+	OSD_SEC_CAP_FORMAT_VER2 = 2,
+};
+
+/* security_method */
+enum {
+	OSD_SEC_NOSEC = 0,
+	OSD_SEC_CAPKEY = 1,
+	OSD_SEC_CMDRSP = 2,
+	OSD_SEC_ALLDATA = 3,
+};
+
+enum object_type {
+	OSD_SEC_OBJ_ROOT = 0x1,
+	OSD_SEC_OBJ_PARTITION = 0x2,
+	OSD_SEC_OBJ_COLLECTION = 0x40,
+	OSD_SEC_OBJ_USER = 0x80,
+};
+
+enum osd_capability_bit_masks {
+	OSD_SEC_CAP_APPEND	= BIT(0),
+	OSD_SEC_CAP_OBJ_MGMT	= BIT(1),
+	OSD_SEC_CAP_REMOVE	= BIT(2),
+	OSD_SEC_CAP_CREATE	= BIT(3),
+	OSD_SEC_CAP_SET_ATTR	= BIT(4),
+	OSD_SEC_CAP_GET_ATTR	= BIT(5),
+	OSD_SEC_CAP_WRITE	= BIT(6),
+	OSD_SEC_CAP_READ	= BIT(7),
+
+	OSD_SEC_CAP_NONE1	= BIT(8),
+	OSD_SEC_CAP_NONE2	= BIT(9),
+	OSD_SEC_CAP_NONE3	= BIT(10),
+	OSD_SEC_CAP_QUERY	= BIT(11), /*v2 only*/
+	OSD_SEC_CAP_M_OBJECT	= BIT(12), /*v2 only*/
+	OSD_SEC_CAP_POL_SEC	= BIT(13),
+	OSD_SEC_CAP_GLOBAL	= BIT(14),
+	OSD_SEC_CAP_DEV_MGMT	= BIT(15),
+};
+
+/* for object_descriptor_type (hi nibble used) */
+enum {
+	OSD_SEC_OBJ_DESC_NONE = 0,     /* Not allowed */
+	OSD_SEC_OBJ_DESC_OBJ = 1 << 4, /* v1: also collection */
+	OSD_SEC_OBJ_DESC_PAR = 2 << 4, /* also root */
+	OSD_SEC_OBJ_DESC_COL = 3 << 4, /* v2 only */
+};
+
+/* (osd-r10:4.9.2.2)
+ * osd2r03:4.11.2.2 Capability format
+ */
+struct osd_capability_head {
+	u8 format; /* low nibble */
+	u8 integrity_algorithm__key_version; /* MAKE_BYTE(integ_alg, key_ver) */
+	u8 security_method;
+	u8 reserved1;
+/*04*/	struct osd_timestamp expiration_time;
+/*10*/	u8 audit[20];
+/*30*/	u8 discriminator[12];
+/*42*/	struct osd_timestamp object_created_time;
+/*48*/	u8 object_type;
+/*49*/	u8 permissions_bit_mask[5];
+/*54*/	u8 reserved2;
+/*55*/	u8 object_descriptor_type; /* high nibble */
+} __packed;
+
+/*56 v1*/
+struct osdv1_cap_object_descriptor {
+	union {
+		struct {
+/*56*/			__be32 policy_access_tag;
+/*60*/			__be64 allowed_partition_id;
+/*68*/			__be64 allowed_object_id;
+/*76*/			__be32 reserved;
+		} __packed obj_desc;
+
+/*56*/		u8 object_descriptor[24];
+	};
+} __packed;
+/*80 v1*/
+
+struct osd_capability {
+	struct osd_capability_head h;
+	struct osdv1_cap_object_descriptor od;
+} __packed;
+
+/**
+ * osd_sec_set_caps - set cap-bits into the capabilities header
+ *
+ * @cap:	The osd_capability_head to set cap bits to.
+ * @bit_mask: 	Use an ORed list of enum osd_capability_bit_masks values
+ *
+ * permissions_bit_mask is unaligned use below to set into caps
+ * in a version independent way
+ */
+static inline void osd_sec_set_caps(struct osd_capability_head *cap,
+	u16 bit_mask)
+{
+	/*
+	 *Note: The bits above are defined LE order this is because this way
+	 *      they can grow in the future to more then 16, and still retain
+	 *      there constant values.
+	 */
+	put_unaligned_le16(bit_mask, &cap->permissions_bit_mask);
+}
+
+#endif /* ndef __OSD_PROTOCOL_H__ */
diff --git a/include/scsi/osd_sec.h b/include/scsi/osd_sec.h
new file mode 100644
index 000000000000..4c09fee8ae1e
--- /dev/null
+++ b/include/scsi/osd_sec.h
@@ -0,0 +1,45 @@
+/*
+ * osd_sec.h - OSD security manager API
+ *
+ * Copyright (C) 2008 Panasas Inc.  All rights reserved.
+ *
+ * Authors:
+ *   Boaz Harrosh <bharrosh@panasas.com>
+ *   Benny Halevy <bhalevy@panasas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ *
+ */
+#ifndef __OSD_SEC_H__
+#define __OSD_SEC_H__
+
+#include "osd_protocol.h"
+#include "osd_types.h"
+
+/*
+ * Contains types and constants of osd capabilities and security
+ * encoding/decoding.
+ * API is trying to keep security abstract so initiator of an object
+ * based pNFS client knows as little as possible about security and
+ * capabilities. It is the Server's osd-initiator place to know more.
+ * Also can be used by osd-target.
+ */
+void osd_sec_encode_caps(void *caps, ...);/* NI */
+void osd_sec_init_nosec_doall_caps(void *caps,
+	const struct osd_obj_id *obj, bool is_collection, const bool is_v1);
+
+bool osd_is_sec_alldata(struct osd_security_parameters *sec_params);
+
+/* Conditionally sign the CDB according to security setting in ocdb
+ * with cap_key */
+void osd_sec_sign_cdb(struct osd_cdb *ocdb, const u8 *cap_key);
+
+/* Unconditionally sign the BIO data with cap_key.
+ * Check for osd_is_sec_alldata() was done prior to calling this. */
+void osd_sec_sign_data(void *data_integ, struct bio *bio, const u8 *cap_key);
+
+/* Version independent copy of caps into the cdb */
+void osd_set_caps(struct osd_cdb *cdb, const void *caps);
+
+#endif /* ndef __OSD_SEC_H__ */
diff --git a/include/scsi/osd_types.h b/include/scsi/osd_types.h
new file mode 100644
index 000000000000..3f5e88cc75c0
--- /dev/null
+++ b/include/scsi/osd_types.h
@@ -0,0 +1,40 @@
+/*
+ * osd_types.h - Types and constants which are not part of the protocol.
+ *
+ * Copyright (C) 2008 Panasas Inc.  All rights reserved.
+ *
+ * Authors:
+ *   Boaz Harrosh <bharrosh@panasas.com>
+ *   Benny Halevy <bhalevy@panasas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ *
+ * Contains types and constants that are implementation specific and are
+ * used by more than one part of the osd library.
+ *     (Eg initiator/target/security_manager/...)
+ */
+#ifndef __OSD_TYPES_H__
+#define __OSD_TYPES_H__
+
+struct osd_systemid {
+	u8 data[OSD_SYSTEMID_LEN];
+};
+
+typedef u64 __bitwise osd_id;
+
+struct osd_obj_id {
+	osd_id partition;
+	osd_id id;
+};
+
+static const struct __weak osd_obj_id osd_root_object = {0, 0};
+
+struct osd_attr {
+	u32 attr_page;
+	u32 attr_id;
+	u16 len;		/* byte count of operand */
+	void *val_ptr;		/* in network order */
+};
+
+#endif /* ndef __OSD_TYPES_H__ */
-- 
cgit v1.2.3


From 95b05a7db5865855c32e0bb8b244c3a7aac1cfeb Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 16:56:47 +0200
Subject: [SCSI] osd_uld: OSD scsi ULD

Add a Linux driver module that registers as a SCSI ULD and probes
for OSD type SCSI devices.

When an OSD-type SCSI device is found a character device is created
in the form of /dev/osdX - where X goes from 0 up to hard coded 64.
The Major character device number used is 260.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Reviewed-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/osd/Kbuild      |   7 +
 drivers/scsi/osd/osd_uld.c   | 419 +++++++++++++++++++++++++++++++++++++++++++
 include/scsi/osd_initiator.h |   6 +
 3 files changed, 432 insertions(+)
 create mode 100644 drivers/scsi/osd/osd_uld.c

(limited to 'include')

diff --git a/drivers/scsi/osd/Kbuild b/drivers/scsi/osd/Kbuild
index a95e0251005c..9d38248afcb7 100644
--- a/drivers/scsi/osd/Kbuild
+++ b/drivers/scsi/osd/Kbuild
@@ -17,6 +17,9 @@ ifneq ($(OSD_INC),)
 CONFIG_SCSI_OSD_INITIATOR=m
 ccflags-y += -DCONFIG_SCSI_OSD_INITIATOR -DCONFIG_SCSI_OSD_INITIATOR_MODULE
 
+CONFIG_SCSI_OSD_ULD=m
+ccflags-y += -DCONFIG_SCSI_OSD_ULD -DCONFIG_SCSI_OSD_ULD_MODULE
+
 # Uncomment to turn debug on
 # ccflags-y += -DCONFIG_SCSI_OSD_DEBUG
 
@@ -30,3 +33,7 @@ endif
 # libosd.ko - osd-initiator library
 libosd-y := osd_initiator.o
 obj-$(CONFIG_SCSI_OSD_INITIATOR) += libosd.o
+
+# osd.ko - SCSI ULD and char-device
+osd-y := osd_uld.o
+obj-$(CONFIG_SCSI_OSD_ULD) += osd.o
diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
new file mode 100644
index 000000000000..f6f9a99adaa6
--- /dev/null
+++ b/drivers/scsi/osd/osd_uld.c
@@ -0,0 +1,419 @@
+/*
+ * osd_uld.c - OSD Upper Layer Driver
+ *
+ * A Linux driver module that registers as a SCSI ULD and probes
+ * for OSD type SCSI devices.
+ * It's main function is to export osd devices to in-kernel users like
+ * osdfs and pNFS-objects-LD. It also provides one ioctl for running
+ * in Kernel tests.
+ *
+ * Copyright (C) 2008 Panasas Inc.  All rights reserved.
+ *
+ * Authors:
+ *   Boaz Harrosh <bharrosh@panasas.com>
+ *   Benny Halevy <bhalevy@panasas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *  3. Neither the name of the Panasas company nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/namei.h>
+#include <linux/cdev.h>
+#include <linux/fs.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/idr.h>
+#include <linux/major.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_driver.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_ioctl.h>
+
+#include <scsi/osd_initiator.h>
+#include <scsi/osd_sec.h>
+
+#include "osd_debug.h"
+
+#ifndef TYPE_OSD
+#  define TYPE_OSD 0x11
+#endif
+
+#ifndef SCSI_OSD_MAJOR
+#  define SCSI_OSD_MAJOR 260
+#endif
+#define SCSI_OSD_MAX_MINOR 64
+
+static const char osd_name[] = "osd";
+static const char *osd_version_string = "open-osd 0.1.0";
+const char osd_symlink[] = "scsi_osd";
+
+MODULE_AUTHOR("Boaz Harrosh <bharrosh@panasas.com>");
+MODULE_DESCRIPTION("open-osd Upper-Layer-Driver osd.ko");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CHARDEV_MAJOR(SCSI_OSD_MAJOR);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_OSD);
+
+struct osd_uld_device {
+	int minor;
+	struct kref kref;
+	struct cdev cdev;
+	struct osd_dev od;
+	struct gendisk *disk;
+	struct device *class_member;
+};
+
+static void __uld_get(struct osd_uld_device *oud);
+static void __uld_put(struct osd_uld_device *oud);
+
+/*
+ * Char Device operations
+ */
+
+static int osd_uld_open(struct inode *inode, struct file *file)
+{
+	struct osd_uld_device *oud = container_of(inode->i_cdev,
+					struct osd_uld_device, cdev);
+
+	__uld_get(oud);
+	/* cache osd_uld_device on file handle */
+	file->private_data = oud;
+	OSD_DEBUG("osd_uld_open %p\n", oud);
+	return 0;
+}
+
+static int osd_uld_release(struct inode *inode, struct file *file)
+{
+	struct osd_uld_device *oud = file->private_data;
+
+	OSD_DEBUG("osd_uld_release %p\n", file->private_data);
+	file->private_data = NULL;
+	__uld_put(oud);
+	return 0;
+}
+
+/* FIXME: Only one vector for now */
+unsigned g_test_ioctl;
+do_test_fn *g_do_test;
+
+int osduld_register_test(unsigned ioctl, do_test_fn *do_test)
+{
+	if (g_test_ioctl)
+		return -EINVAL;
+
+	g_test_ioctl = ioctl;
+	g_do_test = do_test;
+	return 0;
+}
+EXPORT_SYMBOL(osduld_register_test);
+
+void osduld_unregister_test(unsigned ioctl)
+{
+	if (ioctl == g_test_ioctl) {
+		g_test_ioctl = 0;
+		g_do_test = NULL;
+	}
+}
+EXPORT_SYMBOL(osduld_unregister_test);
+
+static do_test_fn *_find_ioctl(unsigned cmd)
+{
+	if (g_test_ioctl == cmd)
+		return g_do_test;
+	else
+		return NULL;
+}
+
+static long osd_uld_ioctl(struct file *file, unsigned int cmd,
+	unsigned long arg)
+{
+	struct osd_uld_device *oud = file->private_data;
+	int ret;
+	do_test_fn *do_test;
+
+	do_test = _find_ioctl(cmd);
+	if (do_test)
+		ret = do_test(&oud->od, cmd, arg);
+	else {
+		OSD_ERR("Unknown ioctl %d: osd_uld_device=%p\n", cmd, oud);
+		ret = -ENOIOCTLCMD;
+	}
+	return ret;
+}
+
+static const struct file_operations osd_fops = {
+	.owner          = THIS_MODULE,
+	.open           = osd_uld_open,
+	.release        = osd_uld_release,
+	.unlocked_ioctl = osd_uld_ioctl,
+};
+
+/*
+ * Scsi Device operations
+ */
+
+static int __detect_osd(struct osd_uld_device *oud)
+{
+	struct scsi_device *scsi_device = oud->od.scsi_device;
+	int error;
+
+	/* sending a test_unit_ready as first command seems to be needed
+	 * by some targets
+	 */
+	OSD_DEBUG("start scsi_test_unit_ready %p %p %p\n",
+			oud, scsi_device, scsi_device->request_queue);
+	error = scsi_test_unit_ready(scsi_device, 10*HZ, 5, NULL);
+	if (error)
+		OSD_ERR("warning: scsi_test_unit_ready failed\n");
+
+	return 0;
+}
+
+static struct class *osd_sysfs_class;
+static DEFINE_IDA(osd_minor_ida);
+
+static int osd_probe(struct device *dev)
+{
+	struct scsi_device *scsi_device = to_scsi_device(dev);
+	struct gendisk *disk;
+	struct osd_uld_device *oud;
+	int minor;
+	int error;
+
+	if (scsi_device->type != TYPE_OSD)
+		return -ENODEV;
+
+	do {
+		if (!ida_pre_get(&osd_minor_ida, GFP_KERNEL))
+			return -ENODEV;
+
+		error = ida_get_new(&osd_minor_ida, &minor);
+	} while (error == -EAGAIN);
+
+	if (error)
+		return error;
+	if (minor >= SCSI_OSD_MAX_MINOR) {
+		error = -EBUSY;
+		goto err_retract_minor;
+	}
+
+	error = -ENOMEM;
+	oud = kzalloc(sizeof(*oud), GFP_KERNEL);
+	if (NULL == oud)
+		goto err_retract_minor;
+
+	kref_init(&oud->kref);
+	dev_set_drvdata(dev, oud);
+	oud->minor = minor;
+
+	/* allocate a disk and set it up */
+	/* FIXME: do we need this since sg has already done that */
+	disk = alloc_disk(1);
+	if (!disk) {
+		OSD_ERR("alloc_disk failed\n");
+		goto err_free_osd;
+	}
+	disk->major = SCSI_OSD_MAJOR;
+	disk->first_minor = oud->minor;
+	sprintf(disk->disk_name, "osd%d", oud->minor);
+	oud->disk = disk;
+
+	/* hold one more reference to the scsi_device that will get released
+	 * in __release, in case a logout is happening while fs is mounted
+	 */
+	scsi_device_get(scsi_device);
+	osd_dev_init(&oud->od, scsi_device);
+
+	/* Detect the OSD Version */
+	error = __detect_osd(oud);
+	if (error) {
+		OSD_ERR("osd detection failed, non-compatible OSD device\n");
+		goto err_put_disk;
+	}
+
+	/* init the char-device for communication with user-mode */
+	cdev_init(&oud->cdev, &osd_fops);
+	oud->cdev.owner = THIS_MODULE;
+	error = cdev_add(&oud->cdev,
+			 MKDEV(SCSI_OSD_MAJOR, oud->minor), 1);
+	if (error) {
+		OSD_ERR("cdev_add failed\n");
+		goto err_put_disk;
+	}
+	kobject_get(&oud->cdev.kobj); /* 2nd ref see osd_remove() */
+
+	/* class_member */
+	oud->class_member = device_create(osd_sysfs_class, dev,
+		MKDEV(SCSI_OSD_MAJOR, oud->minor), "%s", disk->disk_name);
+	if (IS_ERR(oud->class_member)) {
+		OSD_ERR("class_device_create failed\n");
+		error = PTR_ERR(oud->class_member);
+		goto err_put_cdev;
+	}
+
+	dev_set_drvdata(oud->class_member, oud);
+	error = sysfs_create_link(&scsi_device->sdev_gendev.kobj,
+				  &oud->class_member->kobj, osd_symlink);
+	if (error)
+		OSD_ERR("warning: unable to make symlink\n");
+
+	OSD_INFO("osd_probe %s\n", disk->disk_name);
+	return 0;
+
+err_put_cdev:
+	cdev_del(&oud->cdev);
+err_put_disk:
+	scsi_device_put(scsi_device);
+	put_disk(disk);
+err_free_osd:
+	dev_set_drvdata(dev, NULL);
+	kfree(oud);
+err_retract_minor:
+	ida_remove(&osd_minor_ida, minor);
+	return error;
+}
+
+static int osd_remove(struct device *dev)
+{
+	struct scsi_device *scsi_device = to_scsi_device(dev);
+	struct osd_uld_device *oud = dev_get_drvdata(dev);
+
+	if (!oud || (oud->od.scsi_device != scsi_device)) {
+		OSD_ERR("Half cooked osd-device %p,%p || %p!=%p",
+			dev, oud, oud ? oud->od.scsi_device : NULL,
+			scsi_device);
+	}
+
+	sysfs_remove_link(&oud->od.scsi_device->sdev_gendev.kobj, osd_symlink);
+
+	if (oud->class_member)
+		device_destroy(osd_sysfs_class,
+			       MKDEV(SCSI_OSD_MAJOR, oud->minor));
+
+	/* We have 2 references to the cdev. One is released here
+	 * and also takes down the /dev/osdX mapping. The second
+	 * Will be released in __remove() after all users have released
+	 * the osd_uld_device.
+	 */
+	if (oud->cdev.owner)
+		cdev_del(&oud->cdev);
+
+	__uld_put(oud);
+	return 0;
+}
+
+static void __remove(struct kref *kref)
+{
+	struct osd_uld_device *oud = container_of(kref,
+					struct osd_uld_device, kref);
+	struct scsi_device *scsi_device = oud->od.scsi_device;
+
+	/* now let delete the char_dev */
+	kobject_put(&oud->cdev.kobj);
+
+	osd_dev_fini(&oud->od);
+	scsi_device_put(scsi_device);
+
+	OSD_INFO("osd_remove %s\n",
+		 oud->disk ? oud->disk->disk_name : NULL);
+
+	if (oud->disk)
+		put_disk(oud->disk);
+
+	ida_remove(&osd_minor_ida, oud->minor);
+	kfree(oud);
+}
+
+static void __uld_get(struct osd_uld_device *oud)
+{
+	kref_get(&oud->kref);
+}
+
+static void __uld_put(struct osd_uld_device *oud)
+{
+	kref_put(&oud->kref, __remove);
+}
+
+/*
+ * Global driver and scsi registration
+ */
+
+static struct scsi_driver osd_driver = {
+	.owner			= THIS_MODULE,
+	.gendrv = {
+		.name		= osd_name,
+		.probe		= osd_probe,
+		.remove		= osd_remove,
+	}
+};
+
+static int __init osd_uld_init(void)
+{
+	int err;
+
+	osd_sysfs_class = class_create(THIS_MODULE, osd_symlink);
+	if (IS_ERR(osd_sysfs_class)) {
+		OSD_ERR("Unable to register sysfs class => %ld\n",
+			PTR_ERR(osd_sysfs_class));
+		return PTR_ERR(osd_sysfs_class);
+	}
+
+	err = register_chrdev_region(MKDEV(SCSI_OSD_MAJOR, 0),
+				     SCSI_OSD_MAX_MINOR, osd_name);
+	if (err) {
+		OSD_ERR("Unable to register major %d for osd ULD => %d\n",
+			SCSI_OSD_MAJOR, err);
+		goto err_out;
+	}
+
+	err = scsi_register_driver(&osd_driver.gendrv);
+	if (err) {
+		OSD_ERR("scsi_register_driver failed => %d\n", err);
+		goto err_out_chrdev;
+	}
+
+	OSD_INFO("LOADED %s\n", osd_version_string);
+	return 0;
+
+err_out_chrdev:
+	unregister_chrdev_region(MKDEV(SCSI_OSD_MAJOR, 0), SCSI_OSD_MAX_MINOR);
+err_out:
+	class_destroy(osd_sysfs_class);
+	return err;
+}
+
+static void __exit osd_uld_exit(void)
+{
+	scsi_unregister_driver(&osd_driver.gendrv);
+	unregister_chrdev_region(MKDEV(SCSI_OSD_MAJOR, 0), SCSI_OSD_MAX_MINOR);
+	class_destroy(osd_sysfs_class);
+	OSD_INFO("UNLOADED %s\n", osd_version_string);
+}
+
+module_init(osd_uld_init);
+module_exit(osd_uld_exit);
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index 1d92247f820b..a5dbbddcf73b 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -33,6 +33,12 @@ struct osd_dev {
 	unsigned def_timeout;
 };
 
+/* Add/remove test ioctls from external modules */
+typedef int (do_test_fn)(struct osd_dev *od, unsigned cmd, unsigned long arg);
+int osduld_register_test(unsigned ioctl, do_test_fn *do_test);
+void osduld_unregister_test(unsigned ioctl);
+
+/* These are called by uld at probe time */
 void osd_dev_init(struct osd_dev *od, struct scsi_device *scsi_device);
 void osd_dev_fini(struct osd_dev *od);
 
-- 
cgit v1.2.3


From b799bc7da0ce5ba4a988c521a8fb10452eb419f0 Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 16:58:03 +0200
Subject: [SCSI] osd_uld: API for retrieving osd devices from Kernel

Kernel clients like exofs can retrieve struct osd_dev(s)
by means of below API.

+ osduld_path_lookup() - given a path (e.g "/dev/osd0") locks and
returns the corresponding struct osd_dev, which is then needed
for subsequent libosd use.

+ osduld_put_device() - free up use of an osd_dev.

Devices can be shared by multiple clients. The osd_uld_device's
life time is governed by an embedded kref structure.

The osd_uld_device holds an extra reference to both it's
char-device and it's scsi_device, and will release these just
before the final deallocation.

There are three possible lock sources of the osd_uld_device
1. First and for most is the probe() function called by
  scsi-ml upon a successful login into a target. Released in release()
  when logout.
2. Second by user-mode file handles opened on the char-dev.
3. Third is here by Kernel users.
All three locks must be removed before the osd_uld_device is freed.

The MODULE has three lock sources as well:
1. scsi-ml at probe() time, removed after release(). (login/logout)
2. The user-mode file handles open/close.
3. Import symbols by client modules like exofs.

TODO:
  This API is not enough for the pNFS-objects LD. A more versatile
  API will be needed. Proposed API could be:
  struct osd_dev *osduld_sysid_lookup(const char id[OSD_SYSTEMID_LEN]);

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/osd/osd_uld.c   | 63 ++++++++++++++++++++++++++++++++++++++++++++
 include/scsi/osd_initiator.h |  4 +++
 2 files changed, 67 insertions(+)

(limited to 'include')

diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index f6f9a99adaa6..cd4ca7cd9f75 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -173,6 +173,69 @@ static const struct file_operations osd_fops = {
 	.unlocked_ioctl = osd_uld_ioctl,
 };
 
+struct osd_dev *osduld_path_lookup(const char *path)
+{
+	struct nameidata nd;
+	struct inode *inode;
+	struct cdev *cdev;
+	struct osd_uld_device *uninitialized_var(oud);
+	int error;
+
+	if (!path || !*path) {
+		OSD_ERR("Mount with !path || !*path\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	error = path_lookup(path, LOOKUP_FOLLOW, &nd);
+	if (error) {
+		OSD_ERR("path_lookup of %s faild=>%d\n", path, error);
+		return ERR_PTR(error);
+	}
+
+	inode = nd.path.dentry->d_inode;
+	error = -EINVAL; /* Not the right device e.g osd_uld_device */
+	if (!S_ISCHR(inode->i_mode)) {
+		OSD_DEBUG("!S_ISCHR()\n");
+		goto out;
+	}
+
+	cdev = inode->i_cdev;
+	if (!cdev) {
+		OSD_ERR("Before mounting an OSD Based filesystem\n");
+		OSD_ERR("  user-mode must open+close the %s device\n", path);
+		OSD_ERR("  Example: bash: echo < %s\n", path);
+		goto out;
+	}
+
+	/* The Magic wand. Is it our char-dev */
+	/* TODO: Support sg devices */
+	if (cdev->owner != THIS_MODULE) {
+		OSD_ERR("Error mounting %s - is not an OSD device\n", path);
+		goto out;
+	}
+
+	oud = container_of(cdev, struct osd_uld_device, cdev);
+
+	__uld_get(oud);
+	error = 0;
+
+out:
+	path_put(&nd.path);
+	return error ? ERR_PTR(error) : &oud->od;
+}
+EXPORT_SYMBOL(osduld_path_lookup);
+
+void osduld_put_device(struct osd_dev *od)
+{
+	if (od) {
+		struct osd_uld_device *oud = container_of(od,
+						struct osd_uld_device, od);
+
+		__uld_put(oud);
+	}
+}
+EXPORT_SYMBOL(osduld_put_device);
+
 /*
  * Scsi Device operations
  */
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index a5dbbddcf73b..e84dc7aa5e34 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -33,6 +33,10 @@ struct osd_dev {
 	unsigned def_timeout;
 };
 
+/* Retrieve/return osd_dev(s) for use by Kernel clients */
+struct osd_dev *osduld_path_lookup(const char *dev_name); /*Use IS_ERR/ERR_PTR*/
+void osduld_put_device(struct osd_dev *od);
+
 /* Add/remove test ioctls from external modules */
 typedef int (do_test_fn)(struct osd_dev *od, unsigned cmd, unsigned long arg);
 int osduld_register_test(unsigned ioctl, do_test_fn *do_test);
-- 
cgit v1.2.3


From 4ef1a3d70d02663f6bfe901db629e8e608da15b1 Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 16:59:50 +0200
Subject: [SCSI] libosd: attributes Support

Support for both List-Mode and Page-Mode osd attributes. One of
these operations may be added to most other operations.

Define the OSD standard's attribute pages constants and structures
(osd_attributes.h)

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Reviewed-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/osd/osd_initiator.c | 579 +++++++++++++++++++++++++++++++++++++++
 include/scsi/osd_attributes.h    | 327 ++++++++++++++++++++++
 2 files changed, 906 insertions(+)
 create mode 100644 include/scsi/osd_attributes.h

(limited to 'include')

diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index 0e6d906f1113..b982d767bf99 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -45,6 +45,10 @@
 
 #include "osd_debug.h"
 
+#ifndef __unused
+#    define __unused			__attribute__((unused))
+#endif
+
 enum { OSD_REQ_RETRIES = 1 };
 
 MODULE_AUTHOR("Boaz Harrosh <bharrosh@panasas.com>");
@@ -63,6 +67,50 @@ static unsigned _osd_req_cdb_len(struct osd_request *or)
 	return OSDv1_TOTAL_CDB_LEN;
 }
 
+static unsigned _osd_req_alist_elem_size(struct osd_request *or, unsigned len)
+{
+	return osdv1_attr_list_elem_size(len);
+}
+
+static unsigned _osd_req_alist_size(struct osd_request *or, void *list_head)
+{
+	return osdv1_list_size(list_head);
+}
+
+static unsigned _osd_req_sizeof_alist_header(struct osd_request *or)
+{
+	return sizeof(struct osdv1_attributes_list_header);
+}
+
+static void _osd_req_set_alist_type(struct osd_request *or,
+	void *list, int list_type)
+{
+	struct osdv1_attributes_list_header *attr_list = list;
+
+	memset(attr_list, 0, sizeof(*attr_list));
+	attr_list->type = list_type;
+}
+
+static bool _osd_req_is_alist_type(struct osd_request *or,
+	void *list, int list_type)
+{
+	if (!list)
+		return false;
+
+	if (1) {
+		struct osdv1_attributes_list_header *attr_list = list;
+
+		return attr_list->type == list_type;
+	}
+}
+
+static osd_cdb_offset osd_req_encode_offset(struct osd_request *or,
+	u64 offset, unsigned *padding)
+{
+	return __osd_encode_offset(offset, padding,
+				  OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
+}
+
 void osd_dev_init(struct osd_dev *osdd, struct scsi_device *scsi_device)
 {
 	memset(osdd, 0, sizeof(*osdd));
@@ -125,10 +173,25 @@ static void _abort_unexecuted_bios(struct request *rq)
 	}
 }
 
+static void _osd_free_seg(struct osd_request *or __unused,
+	struct _osd_req_data_segment *seg)
+{
+	if (!seg->buff || !seg->alloc_size)
+		return;
+
+	kfree(seg->buff);
+	seg->buff = NULL;
+	seg->alloc_size = 0;
+}
+
 void osd_end_request(struct osd_request *or)
 {
 	struct request *rq = or->request;
 
+	_osd_free_seg(or, &or->set_attr);
+	_osd_free_seg(or, &or->enc_get_attr);
+	_osd_free_seg(or, &or->get_attr);
+
 	if (rq) {
 		if (rq->next_rq) {
 			_abort_unexecuted_bios(rq->next_rq);
@@ -176,6 +239,54 @@ int osd_execute_request_async(struct osd_request *or,
 }
 EXPORT_SYMBOL(osd_execute_request_async);
 
+u8 sg_out_pad_buffer[1 << OSDv1_OFFSET_MIN_SHIFT];
+u8 sg_in_pad_buffer[1 << OSDv1_OFFSET_MIN_SHIFT];
+
+static int _osd_realloc_seg(struct osd_request *or,
+	struct _osd_req_data_segment *seg, unsigned max_bytes)
+{
+	void *buff;
+
+	if (seg->alloc_size >= max_bytes)
+		return 0;
+
+	buff = krealloc(seg->buff, max_bytes, or->alloc_flags);
+	if (!buff) {
+		OSD_ERR("Failed to Realloc %d-bytes was-%d\n", max_bytes,
+			seg->alloc_size);
+		return -ENOMEM;
+	}
+
+	memset(buff + seg->alloc_size, 0, max_bytes - seg->alloc_size);
+	seg->buff = buff;
+	seg->alloc_size = max_bytes;
+	return 0;
+}
+
+static int _alloc_set_attr_list(struct osd_request *or,
+	const struct osd_attr *oa, unsigned nelem, unsigned add_bytes)
+{
+	unsigned total_bytes = add_bytes;
+
+	for (; nelem; --nelem, ++oa)
+		total_bytes += _osd_req_alist_elem_size(or, oa->len);
+
+	OSD_DEBUG("total_bytes=%d\n", total_bytes);
+	return _osd_realloc_seg(or, &or->set_attr, total_bytes);
+}
+
+static int _alloc_get_attr_desc(struct osd_request *or, unsigned max_bytes)
+{
+	OSD_DEBUG("total_bytes=%d\n", max_bytes);
+	return _osd_realloc_seg(or, &or->enc_get_attr, max_bytes);
+}
+
+static int _alloc_get_attr_list(struct osd_request *or)
+{
+	OSD_DEBUG("total_bytes=%d\n", or->get_attr.total_bytes);
+	return _osd_realloc_seg(or, &or->get_attr, or->get_attr.total_bytes);
+}
+
 /*
  * Common to all OSD commands
  */
@@ -284,6 +395,410 @@ void osd_req_read(struct osd_request *or,
 }
 EXPORT_SYMBOL(osd_req_read);
 
+void osd_req_get_attributes(struct osd_request *or,
+	const struct osd_obj_id *obj)
+{
+	_osd_req_encode_common(or, OSD_ACT_GET_ATTRIBUTES, obj, 0, 0);
+}
+EXPORT_SYMBOL(osd_req_get_attributes);
+
+void osd_req_set_attributes(struct osd_request *or,
+	const struct osd_obj_id *obj)
+{
+	_osd_req_encode_common(or, OSD_ACT_SET_ATTRIBUTES, obj, 0, 0);
+}
+EXPORT_SYMBOL(osd_req_set_attributes);
+
+/*
+ * Attributes List-mode
+ */
+
+int osd_req_add_set_attr_list(struct osd_request *or,
+	const struct osd_attr *oa, unsigned nelem)
+{
+	unsigned total_bytes = or->set_attr.total_bytes;
+	void *attr_last;
+	int ret;
+
+	if (or->attributes_mode &&
+	    or->attributes_mode != OSD_CDB_GET_SET_ATTR_LISTS) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS;
+
+	if (!total_bytes) { /* first-time: allocate and put list header */
+		total_bytes = _osd_req_sizeof_alist_header(or);
+		ret = _alloc_set_attr_list(or, oa, nelem, total_bytes);
+		if (ret)
+			return ret;
+		_osd_req_set_alist_type(or, or->set_attr.buff,
+					OSD_ATTR_LIST_SET_RETRIEVE);
+	}
+	attr_last = or->set_attr.buff + total_bytes;
+
+	for (; nelem; --nelem) {
+		struct osd_attributes_list_element *attr;
+		unsigned elem_size = _osd_req_alist_elem_size(or, oa->len);
+
+		total_bytes += elem_size;
+		if (unlikely(or->set_attr.alloc_size < total_bytes)) {
+			or->set_attr.total_bytes = total_bytes - elem_size;
+			ret = _alloc_set_attr_list(or, oa, nelem, total_bytes);
+			if (ret)
+				return ret;
+			attr_last =
+				or->set_attr.buff + or->set_attr.total_bytes;
+		}
+
+		attr = attr_last;
+		attr->attr_page = cpu_to_be32(oa->attr_page);
+		attr->attr_id = cpu_to_be32(oa->attr_id);
+		attr->attr_bytes = cpu_to_be16(oa->len);
+		memcpy(attr->attr_val, oa->val_ptr, oa->len);
+
+		attr_last += elem_size;
+		++oa;
+	}
+
+	or->set_attr.total_bytes = total_bytes;
+	return 0;
+}
+EXPORT_SYMBOL(osd_req_add_set_attr_list);
+
+static int _append_map_kern(struct request *req,
+	void *buff, unsigned len, gfp_t flags)
+{
+	struct bio *bio;
+	int ret;
+
+	bio = bio_map_kern(req->q, buff, len, flags);
+	if (IS_ERR(bio)) {
+		OSD_ERR("Failed bio_map_kern(%p, %d) => %ld\n", buff, len,
+			PTR_ERR(bio));
+		return PTR_ERR(bio);
+	}
+	ret = blk_rq_append_bio(req->q, req, bio);
+	if (ret) {
+		OSD_ERR("Failed blk_rq_append_bio(%p) => %d\n", bio, ret);
+		bio_put(bio);
+	}
+	return ret;
+}
+
+static int _req_append_segment(struct osd_request *or,
+	unsigned padding, struct _osd_req_data_segment *seg,
+	struct _osd_req_data_segment *last_seg, struct _osd_io_info *io)
+{
+	void *pad_buff;
+	int ret;
+
+	if (padding) {
+		/* check if we can just add it to last buffer */
+		if (last_seg &&
+		    (padding <= last_seg->alloc_size - last_seg->total_bytes))
+			pad_buff = last_seg->buff + last_seg->total_bytes;
+		else
+			pad_buff = io->pad_buff;
+
+		ret = _append_map_kern(io->req, pad_buff, padding,
+				       or->alloc_flags);
+		if (ret)
+			return ret;
+		io->total_bytes += padding;
+	}
+
+	ret = _append_map_kern(io->req, seg->buff, seg->total_bytes,
+			       or->alloc_flags);
+	if (ret)
+		return ret;
+
+	io->total_bytes += seg->total_bytes;
+	OSD_DEBUG("padding=%d buff=%p total_bytes=%d\n", padding, seg->buff,
+		  seg->total_bytes);
+	return 0;
+}
+
+static int _osd_req_finalize_set_attr_list(struct osd_request *or)
+{
+	struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb);
+	unsigned padding;
+	int ret;
+
+	if (!or->set_attr.total_bytes) {
+		cdbh->attrs_list.set_attr_offset = OSD_OFFSET_UNUSED;
+		return 0;
+	}
+
+	cdbh->attrs_list.set_attr_bytes = cpu_to_be32(or->set_attr.total_bytes);
+	cdbh->attrs_list.set_attr_offset =
+		osd_req_encode_offset(or, or->out.total_bytes, &padding);
+
+	ret = _req_append_segment(or, padding, &or->set_attr,
+				  or->out.last_seg, &or->out);
+	if (ret)
+		return ret;
+
+	or->out.last_seg = &or->set_attr;
+	return 0;
+}
+
+int osd_req_add_get_attr_list(struct osd_request *or,
+	const struct osd_attr *oa, unsigned nelem)
+{
+	unsigned total_bytes = or->enc_get_attr.total_bytes;
+	void *attr_last;
+	int ret;
+
+	if (or->attributes_mode &&
+	    or->attributes_mode != OSD_CDB_GET_SET_ATTR_LISTS) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS;
+
+	/* first time calc data-in list header size */
+	if (!or->get_attr.total_bytes)
+		or->get_attr.total_bytes = _osd_req_sizeof_alist_header(or);
+
+	/* calc data-out info */
+	if (!total_bytes) { /* first-time: allocate and put list header */
+		unsigned max_bytes;
+
+		total_bytes = _osd_req_sizeof_alist_header(or);
+		max_bytes = total_bytes +
+			nelem * sizeof(struct osd_attributes_list_attrid);
+		ret = _alloc_get_attr_desc(or, max_bytes);
+		if (ret)
+			return ret;
+
+		_osd_req_set_alist_type(or, or->enc_get_attr.buff,
+					OSD_ATTR_LIST_GET);
+	}
+	attr_last = or->enc_get_attr.buff + total_bytes;
+
+	for (; nelem; --nelem) {
+		struct osd_attributes_list_attrid *attrid;
+		const unsigned cur_size = sizeof(*attrid);
+
+		total_bytes += cur_size;
+		if (unlikely(or->enc_get_attr.alloc_size < total_bytes)) {
+			or->enc_get_attr.total_bytes = total_bytes - cur_size;
+			ret = _alloc_get_attr_desc(or,
+					total_bytes + nelem * sizeof(*attrid));
+			if (ret)
+				return ret;
+			attr_last = or->enc_get_attr.buff +
+				or->enc_get_attr.total_bytes;
+		}
+
+		attrid = attr_last;
+		attrid->attr_page = cpu_to_be32(oa->attr_page);
+		attrid->attr_id = cpu_to_be32(oa->attr_id);
+
+		attr_last += cur_size;
+
+		/* calc data-in size */
+		or->get_attr.total_bytes +=
+			_osd_req_alist_elem_size(or, oa->len);
+		++oa;
+	}
+
+	or->enc_get_attr.total_bytes = total_bytes;
+
+	OSD_DEBUG(
+	       "get_attr.total_bytes=%u(%u) enc_get_attr.total_bytes=%u(%Zu)\n",
+	       or->get_attr.total_bytes,
+	       or->get_attr.total_bytes - _osd_req_sizeof_alist_header(or),
+	       or->enc_get_attr.total_bytes,
+	       (or->enc_get_attr.total_bytes - _osd_req_sizeof_alist_header(or))
+			/ sizeof(struct osd_attributes_list_attrid));
+
+	return 0;
+}
+EXPORT_SYMBOL(osd_req_add_get_attr_list);
+
+static int _osd_req_finalize_get_attr_list(struct osd_request *or)
+{
+	struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb);
+	unsigned out_padding;
+	unsigned in_padding;
+	int ret;
+
+	if (!or->enc_get_attr.total_bytes) {
+		cdbh->attrs_list.get_attr_desc_offset = OSD_OFFSET_UNUSED;
+		cdbh->attrs_list.get_attr_offset = OSD_OFFSET_UNUSED;
+		return 0;
+	}
+
+	ret = _alloc_get_attr_list(or);
+	if (ret)
+		return ret;
+
+	/* The out-going buffer info update */
+	OSD_DEBUG("out-going\n");
+	cdbh->attrs_list.get_attr_desc_bytes =
+		cpu_to_be32(or->enc_get_attr.total_bytes);
+
+	cdbh->attrs_list.get_attr_desc_offset =
+		osd_req_encode_offset(or, or->out.total_bytes, &out_padding);
+
+	ret = _req_append_segment(or, out_padding, &or->enc_get_attr,
+				  or->out.last_seg, &or->out);
+	if (ret)
+		return ret;
+	or->out.last_seg = &or->enc_get_attr;
+
+	/* The incoming buffer info update */
+	OSD_DEBUG("in-coming\n");
+	cdbh->attrs_list.get_attr_alloc_length =
+		cpu_to_be32(or->get_attr.total_bytes);
+
+	cdbh->attrs_list.get_attr_offset =
+		osd_req_encode_offset(or, or->in.total_bytes, &in_padding);
+
+	ret = _req_append_segment(or, in_padding, &or->get_attr, NULL,
+				  &or->in);
+	if (ret)
+		return ret;
+	or->in.last_seg = &or->get_attr;
+
+	return 0;
+}
+
+int osd_req_decode_get_attr_list(struct osd_request *or,
+	struct osd_attr *oa, int *nelem, void **iterator)
+{
+	unsigned cur_bytes, returned_bytes;
+	int n;
+	const unsigned sizeof_attr_list = _osd_req_sizeof_alist_header(or);
+	void *cur_p;
+
+	if (!_osd_req_is_alist_type(or, or->get_attr.buff,
+				    OSD_ATTR_LIST_SET_RETRIEVE)) {
+		oa->attr_page = 0;
+		oa->attr_id = 0;
+		oa->val_ptr = NULL;
+		oa->len = 0;
+		*iterator = NULL;
+		return 0;
+	}
+
+	if (*iterator) {
+		BUG_ON((*iterator < or->get_attr.buff) ||
+		     (or->get_attr.buff + or->get_attr.alloc_size < *iterator));
+		cur_p = *iterator;
+		cur_bytes = (*iterator - or->get_attr.buff) - sizeof_attr_list;
+		returned_bytes = or->get_attr.total_bytes;
+	} else { /* first time decode the list header */
+		cur_bytes = sizeof_attr_list;
+		returned_bytes = _osd_req_alist_size(or, or->get_attr.buff) +
+					sizeof_attr_list;
+
+		cur_p = or->get_attr.buff + sizeof_attr_list;
+
+		if (returned_bytes > or->get_attr.alloc_size) {
+			OSD_DEBUG("target report: space was not big enough! "
+				  "Allocate=%u Needed=%u\n",
+				  or->get_attr.alloc_size,
+				  returned_bytes + sizeof_attr_list);
+
+			returned_bytes =
+				or->get_attr.alloc_size - sizeof_attr_list;
+		}
+		or->get_attr.total_bytes = returned_bytes;
+	}
+
+	for (n = 0; (n < *nelem) && (cur_bytes < returned_bytes); ++n) {
+		struct osd_attributes_list_element *attr = cur_p;
+		unsigned inc;
+
+		oa->len = be16_to_cpu(attr->attr_bytes);
+		inc = _osd_req_alist_elem_size(or, oa->len);
+		OSD_DEBUG("oa->len=%d inc=%d cur_bytes=%d\n",
+			  oa->len, inc, cur_bytes);
+		cur_bytes += inc;
+		if (cur_bytes > returned_bytes) {
+			OSD_ERR("BAD FOOD from target. list not valid!"
+				"c=%d r=%d n=%d\n",
+				cur_bytes, returned_bytes, n);
+			oa->val_ptr = NULL;
+			break;
+		}
+
+		oa->attr_page = be32_to_cpu(attr->attr_page);
+		oa->attr_id = be32_to_cpu(attr->attr_id);
+		oa->val_ptr = attr->attr_val;
+
+		cur_p += inc;
+		++oa;
+	}
+
+	*iterator = (returned_bytes - cur_bytes) ? cur_p : NULL;
+	*nelem = n;
+	return returned_bytes - cur_bytes;
+}
+EXPORT_SYMBOL(osd_req_decode_get_attr_list);
+
+/*
+ * Attributes Page-mode
+ */
+
+int osd_req_add_get_attr_page(struct osd_request *or,
+	u32 page_id, void *attar_page, unsigned max_page_len,
+	const struct osd_attr *set_one_attr)
+{
+	struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb);
+
+	if (or->attributes_mode &&
+	    or->attributes_mode != OSD_CDB_GET_ATTR_PAGE_SET_ONE) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+	or->attributes_mode = OSD_CDB_GET_ATTR_PAGE_SET_ONE;
+
+	or->get_attr.buff = attar_page;
+	or->get_attr.total_bytes = max_page_len;
+
+	or->set_attr.buff = set_one_attr->val_ptr;
+	or->set_attr.total_bytes = set_one_attr->len;
+
+	cdbh->attrs_page.get_attr_page = cpu_to_be32(page_id);
+	cdbh->attrs_page.get_attr_alloc_length = cpu_to_be32(max_page_len);
+	/* ocdb->attrs_page.get_attr_offset; */
+
+	cdbh->attrs_page.set_attr_page = cpu_to_be32(set_one_attr->attr_page);
+	cdbh->attrs_page.set_attr_id = cpu_to_be32(set_one_attr->attr_id);
+	cdbh->attrs_page.set_attr_length = cpu_to_be32(set_one_attr->len);
+	/* ocdb->attrs_page.set_attr_offset; */
+	return 0;
+}
+EXPORT_SYMBOL(osd_req_add_get_attr_page);
+
+static int _osd_req_finalize_attr_page(struct osd_request *or)
+{
+	struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb);
+	unsigned in_padding, out_padding;
+	int ret;
+
+	/* returned page */
+	cdbh->attrs_page.get_attr_offset =
+		osd_req_encode_offset(or, or->in.total_bytes, &in_padding);
+
+	ret = _req_append_segment(or, in_padding, &or->get_attr, NULL,
+				  &or->in);
+	if (ret)
+		return ret;
+
+	/* set one value */
+	cdbh->attrs_page.set_attr_offset =
+		osd_req_encode_offset(or, or->out.total_bytes, &out_padding);
+
+	ret = _req_append_segment(or, out_padding, &or->enc_get_attr, NULL,
+				  &or->out);
+	return ret;
+}
+
 /*
  * osd_finalize_request and helpers
  */
@@ -378,9 +893,31 @@ int osd_finalize_request(struct osd_request *or,
 			_LLU(or->in.total_bytes), or->in.req->data_len);
 	}
 
+	or->out.pad_buff = sg_out_pad_buffer;
+	or->in.pad_buff = sg_in_pad_buffer;
+
 	if (!or->attributes_mode)
 		or->attributes_mode = OSD_CDB_GET_SET_ATTR_LISTS;
 	cdbh->command_specific_options |= or->attributes_mode;
+	if (or->attributes_mode == OSD_CDB_GET_ATTR_PAGE_SET_ONE) {
+		ret = _osd_req_finalize_attr_page(or);
+	} else {
+		/* TODO: I think that for the GET_ATTR command these 2 should
+		 * be reversed to keep them in execution order (for embeded
+		 * targets with low memory footprint)
+		 */
+		ret = _osd_req_finalize_set_attr_list(or);
+		if (ret) {
+			OSD_DEBUG("_osd_req_finalize_set_attr_list failed\n");
+			return ret;
+		}
+
+		ret = _osd_req_finalize_get_attr_list(or);
+		if (ret) {
+			OSD_DEBUG("_osd_req_finalize_get_attr_list failed\n");
+			return ret;
+		}
+	}
 
 	or->request->cmd = or->cdb.buff;
 	or->request->cmd_len = _osd_req_cdb_len(or);
@@ -446,3 +983,45 @@ void osd_set_caps(struct osd_cdb *cdb, const void *caps)
 {
 	memcpy(&cdb->v1.caps, caps, OSDv1_CAP_LEN);
 }
+
+/*
+ * Declared in osd_protocol.h
+ * 4.12.5 Data-In and Data-Out buffer offsets
+ * byte offset = mantissa * (2^(exponent+8))
+ * Returns the smallest allowed encoded offset that contains given @offset
+ * The actual encoded offset returned is @offset + *@padding.
+ */
+osd_cdb_offset __osd_encode_offset(
+	u64 offset, unsigned *padding, int min_shift, int max_shift)
+{
+	u64 try_offset = -1, mod, align;
+	osd_cdb_offset be32_offset;
+	int shift;
+
+	*padding = 0;
+	if (!offset)
+		return 0;
+
+	for (shift = min_shift; shift < max_shift; ++shift) {
+		try_offset = offset >> shift;
+		if (try_offset < (1 << OSD_OFFSET_MAX_BITS))
+			break;
+	}
+
+	BUG_ON(shift == max_shift);
+
+	align = 1 << shift;
+	mod = offset & (align - 1);
+	if (mod) {
+		*padding = align - mod;
+		try_offset += 1;
+	}
+
+	try_offset |= ((shift - 8) & 0xf) << 28;
+	be32_offset = cpu_to_be32((u32)try_offset);
+
+	OSD_DEBUG("offset=%llu mantissa=%llu exp=%d encoded=%x pad=%d\n",
+		 _LLU(offset), _LLU(try_offset & 0x0FFFFFFF), shift,
+		 be32_offset, *padding);
+	return be32_offset;
+}
diff --git a/include/scsi/osd_attributes.h b/include/scsi/osd_attributes.h
new file mode 100644
index 000000000000..f888a6fda073
--- /dev/null
+++ b/include/scsi/osd_attributes.h
@@ -0,0 +1,327 @@
+#ifndef __OSD_ATTRIBUTES_H__
+#define __OSD_ATTRIBUTES_H__
+
+#include "osd_protocol.h"
+
+/*
+ * Contains types and constants that define attribute pages and attribute
+ * numbers and their data types.
+ */
+
+#define ATTR_SET(pg, id, l, ptr) \
+	{ .attr_page = pg, .attr_id = id, .len = l, .val_ptr = ptr }
+
+#define ATTR_DEF(pg, id, l) ATTR_SET(pg, id, l, NULL)
+
+/* osd-r10 4.7.3 Attributes pages */
+enum {
+	OSD_APAGE_OBJECT_FIRST		= 0x0,
+	OSD_APAGE_OBJECT_DIRECTORY	= 0,
+	OSD_APAGE_OBJECT_INFORMATION	= 1,
+	OSD_APAGE_OBJECT_QUOTAS		= 2,
+	OSD_APAGE_OBJECT_TIMESTAMP	= 3,
+	OSD_APAGE_OBJECT_COLLECTIONS	= 4,
+	OSD_APAGE_OBJECT_SECURITY	= 5,
+	OSD_APAGE_OBJECT_LAST		= 0x2fffffff,
+
+	OSD_APAGE_PARTITION_FIRST	= 0x30000000,
+	OSD_APAGE_PARTITION_DIRECTORY	= OSD_APAGE_PARTITION_FIRST + 0,
+	OSD_APAGE_PARTITION_INFORMATION = OSD_APAGE_PARTITION_FIRST + 1,
+	OSD_APAGE_PARTITION_QUOTAS	= OSD_APAGE_PARTITION_FIRST + 2,
+	OSD_APAGE_PARTITION_TIMESTAMP	= OSD_APAGE_PARTITION_FIRST + 3,
+	OSD_APAGE_PARTITION_SECURITY	= OSD_APAGE_PARTITION_FIRST + 5,
+	OSD_APAGE_PARTITION_LAST	= 0x5FFFFFFF,
+
+	OSD_APAGE_COLLECTION_FIRST	= 0x60000000,
+	OSD_APAGE_COLLECTION_DIRECTORY	= OSD_APAGE_COLLECTION_FIRST + 0,
+	OSD_APAGE_COLLECTION_INFORMATION = OSD_APAGE_COLLECTION_FIRST + 1,
+	OSD_APAGE_COLLECTION_TIMESTAMP	= OSD_APAGE_COLLECTION_FIRST + 3,
+	OSD_APAGE_COLLECTION_SECURITY	= OSD_APAGE_COLLECTION_FIRST + 5,
+	OSD_APAGE_COLLECTION_LAST	= 0x8FFFFFFF,
+
+	OSD_APAGE_ROOT_FIRST		= 0x90000000,
+	OSD_APAGE_ROOT_DIRECTORY	= OSD_APAGE_ROOT_FIRST + 0,
+	OSD_APAGE_ROOT_INFORMATION	= OSD_APAGE_ROOT_FIRST + 1,
+	OSD_APAGE_ROOT_QUOTAS		= OSD_APAGE_ROOT_FIRST + 2,
+	OSD_APAGE_ROOT_TIMESTAMP	= OSD_APAGE_ROOT_FIRST + 3,
+	OSD_APAGE_ROOT_SECURITY		= OSD_APAGE_ROOT_FIRST + 5,
+	OSD_APAGE_ROOT_LAST		= 0xBFFFFFFF,
+
+	OSD_APAGE_RESERVED_TYPE_FIRST	= 0xC0000000,
+	OSD_APAGE_RESERVED_TYPE_LAST	= 0xEFFFFFFF,
+
+	OSD_APAGE_COMMON_FIRST		= 0xF0000000,
+	OSD_APAGE_COMMON_LAST		= 0xFFFFFFFE,
+
+	OSD_APAGE_REQUEST_ALL		= 0xFFFFFFFF,
+};
+
+/* subcategories of attr pages within each range above */
+enum {
+	OSD_APAGE_STD_FIRST		= 0x0,
+	OSD_APAGE_STD_DIRECTORY		= 0,
+	OSD_APAGE_STD_INFORMATION	= 1,
+	OSD_APAGE_STD_QUOTAS		= 2,
+	OSD_APAGE_STD_TIMESTAMP		= 3,
+	OSD_APAGE_STD_COLLECTIONS	= 4,
+	OSD_APAGE_STD_POLICY_SECURITY	= 5,
+	OSD_APAGE_STD_LAST		= 0x0000007F,
+
+	OSD_APAGE_RESERVED_FIRST	= 0x00000080,
+	OSD_APAGE_RESERVED_LAST		= 0x00007FFF,
+
+	OSD_APAGE_OTHER_STD_FIRST	= 0x00008000,
+	OSD_APAGE_OTHER_STD_LAST	= 0x0000EFFF,
+
+	OSD_APAGE_PUBLIC_FIRST		= 0x0000F000,
+	OSD_APAGE_PUBLIC_LAST		= 0x0000FFFF,
+
+	OSD_APAGE_APP_DEFINED_FIRST	= 0x00010000,
+	OSD_APAGE_APP_DEFINED_LAST	= 0x1FFFFFFF,
+
+	OSD_APAGE_VENDOR_SPECIFIC_FIRST	= 0x20000000,
+	OSD_APAGE_VENDOR_SPECIFIC_LAST	= 0x2FFFFFFF,
+};
+
+enum {
+	OSD_ATTR_PAGE_IDENTIFICATION = 0, /* in all pages 40 bytes */
+};
+
+struct page_identification {
+	u8 vendor_identification[8];
+	u8 page_identification[32];
+}  __packed;
+
+struct osd_attr_page_header {
+	__be32 page_number;
+	__be32 page_length;
+} __packed;
+
+/* 7.1.2.8 Root Information attributes page (OSD_APAGE_ROOT_INFORMATION) */
+enum {
+	OSD_ATTR_RI_OSD_SYSTEM_ID            = 0x3,   /* 20       */
+	OSD_ATTR_RI_VENDOR_IDENTIFICATION    = 0x4,   /* 8        */
+	OSD_ATTR_RI_PRODUCT_IDENTIFICATION   = 0x5,   /* 16       */
+	OSD_ATTR_RI_PRODUCT_MODEL            = 0x6,   /* 32       */
+	OSD_ATTR_RI_PRODUCT_REVISION_LEVEL   = 0x7,   /* 4        */
+	OSD_ATTR_RI_PRODUCT_SERIAL_NUMBER    = 0x8,   /* variable */
+	OSD_ATTR_RI_OSD_NAME                 = 0x9,   /* variable */
+	OSD_ATTR_RI_TOTAL_CAPACITY           = 0x80,  /* 8        */
+	OSD_ATTR_RI_USED_CAPACITY            = 0x81,  /* 8        */
+	OSD_ATTR_RI_NUMBER_OF_PARTITIONS     = 0xC0,  /* 8        */
+	OSD_ATTR_RI_CLOCK                    = 0x100, /* 6        */
+};
+/* Root_Information_attributes_page does not have a get_page structure */
+
+/* 7.1.2.9 Partition Information attributes page
+ * (OSD_APAGE_PARTITION_INFORMATION)
+ */
+enum {
+	OSD_ATTR_PI_PARTITION_ID            = 0x1,     /* 8        */
+	OSD_ATTR_PI_USERNAME                = 0x9,     /* variable */
+	OSD_ATTR_PI_USED_CAPACITY           = 0x81,    /* 8        */
+	OSD_ATTR_PI_NUMBER_OF_OBJECTS       = 0xC1,    /* 8        */
+};
+/* Partition Information attributes page does not have a get_page structure */
+
+/* 7.1.2.10 Collection Information attributes page
+ * (OSD_APAGE_COLLECTION_INFORMATION)
+ */
+enum {
+	OSD_ATTR_CI_PARTITION_ID           = 0x1,       /* 8        */
+	OSD_ATTR_CI_COLLECTION_OBJECT_ID   = 0x2,       /* 8        */
+	OSD_ATTR_CI_USERNAME               = 0x9,       /* variable */
+	OSD_ATTR_CI_USED_CAPACITY          = 0x81,      /* 8        */
+};
+/* Collection Information attributes page does not have a get_page structure */
+
+/* 7.1.2.11 User Object Information attributes page
+ * (OSD_APAGE_OBJECT_INFORMATION)
+ */
+enum {
+	OSD_ATTR_OI_PARTITION_ID         = 0x1,       /* 8        */
+	OSD_ATTR_OI_OBJECT_ID            = 0x2,       /* 8        */
+	OSD_ATTR_OI_USERNAME             = 0x9,       /* variable */
+	OSD_ATTR_OI_USED_CAPACITY        = 0x81,      /* 8        */
+	OSD_ATTR_OI_LOGICAL_LENGTH       = 0x82,      /* 8        */
+};
+/* Object Information attributes page does not have a get_page structure */
+
+/* 7.1.2.12 Root Quotas attributes page (OSD_APAGE_ROOT_QUOTAS) */
+enum {
+	OSD_ATTR_RQ_DEFAULT_MAXIMUM_USER_OBJECT_LENGTH     = 0x1,      /* 8  */
+	OSD_ATTR_RQ_PARTITION_CAPACITY_QUOTA               = 0x10001,  /* 8  */
+	OSD_ATTR_RQ_PARTITION_OBJECT_COUNT                 = 0x10002,  /* 8  */
+	OSD_ATTR_RQ_PARTITION_COLLECTIONS_PER_USER_OBJECT  = 0x10081,  /* 4  */
+	OSD_ATTR_RQ_PARTITION_COUNT                        = 0x20002,  /* 8  */
+};
+
+struct Root_Quotas_attributes_page {
+	struct osd_attr_page_header hdr; /* id=R+2, size=0x24 */
+	__be64 default_maximum_user_object_length;
+	__be64 partition_capacity_quota;
+	__be64 partition_object_count;
+	__be64 partition_collections_per_user_object;
+	__be64 partition_count;
+}  __packed;
+
+/* 7.1.2.13 Partition Quotas attributes page (OSD_APAGE_PARTITION_QUOTAS)*/
+enum {
+	OSD_ATTR_PQ_DEFAULT_MAXIMUM_USER_OBJECT_LENGTH  = 0x1,        /* 8 */
+	OSD_ATTR_PQ_CAPACITY_QUOTA                      = 0x10001,    /* 8 */
+	OSD_ATTR_PQ_OBJECT_COUNT                        = 0x10002,    /* 8 */
+	OSD_ATTR_PQ_COLLECTIONS_PER_USER_OBJECT         = 0x10081,    /* 4 */
+};
+
+struct Partition_Quotas_attributes_page {
+	struct osd_attr_page_header hdr; /* id=P+2, size=0x1C */
+	__be64 default_maximum_user_object_length;
+	__be64 capacity_quota;
+	__be64 object_count;
+	__be64 collections_per_user_object;
+}  __packed;
+
+/* 7.1.2.14 User Object Quotas attributes page (OSD_APAGE_OBJECT_QUOTAS) */
+enum {
+	OSD_ATTR_OQ_MAXIMUM_LENGTH  = 0x1,        /* 8 */
+};
+
+struct Object_Quotas_attributes_page {
+	struct osd_attr_page_header hdr; /* id=U+2, size=0x8 */
+	__be64 maximum_length;
+}  __packed;
+
+/* 7.1.2.15 Root Timestamps attributes page (OSD_APAGE_ROOT_TIMESTAMP) */
+enum {
+	OSD_ATTR_RT_ATTRIBUTES_ACCESSED_TIME  = 0x2,        /* 6 */
+	OSD_ATTR_RT_ATTRIBUTES_MODIFIED_TIME  = 0x3,        /* 6 */
+	OSD_ATTR_RT_TIMESTAMP_BYPASS          = 0xFFFFFFFE, /* 1 */
+};
+
+struct root_timestamps_attributes_page {
+	struct osd_attr_page_header hdr; /* id=R+3, size=0xD */
+	struct osd_timestamp attributes_accessed_time;
+	struct osd_timestamp attributes_modified_time;
+	u8 timestamp_bypass;
+}  __packed;
+
+/* 7.1.2.16 Partition Timestamps attributes page
+ * (OSD_APAGE_PARTITION_TIMESTAMP)
+ */
+enum {
+	OSD_ATTR_PT_CREATED_TIME              = 0x1,        /* 6 */
+	OSD_ATTR_PT_ATTRIBUTES_ACCESSED_TIME  = 0x2,        /* 6 */
+	OSD_ATTR_PT_ATTRIBUTES_MODIFIED_TIME  = 0x3,        /* 6 */
+	OSD_ATTR_PT_DATA_ACCESSED_TIME        = 0x4,        /* 6 */
+	OSD_ATTR_PT_DATA_MODIFIED_TIME        = 0x5,        /* 6 */
+	OSD_ATTR_PT_TIMESTAMP_BYPASS          = 0xFFFFFFFE, /* 1 */
+};
+
+struct partition_timestamps_attributes_page {
+	struct osd_attr_page_header hdr; /* id=P+3, size=0x1F */
+	struct osd_timestamp created_time;
+	struct osd_timestamp attributes_accessed_time;
+	struct osd_timestamp attributes_modified_time;
+	struct osd_timestamp data_accessed_time;
+	struct osd_timestamp data_modified_time;
+	u8 timestamp_bypass;
+}  __packed;
+
+/* 7.1.2.17/18 Collection/Object Timestamps attributes page
+ * (OSD_APAGE_COLLECTION_TIMESTAMP/OSD_APAGE_OBJECT_TIMESTAMP)
+ */
+enum {
+	OSD_ATTR_OT_CREATED_TIME              = 0x1,        /* 6 */
+	OSD_ATTR_OT_ATTRIBUTES_ACCESSED_TIME  = 0x2,        /* 6 */
+	OSD_ATTR_OT_ATTRIBUTES_MODIFIED_TIME  = 0x3,        /* 6 */
+	OSD_ATTR_OT_DATA_ACCESSED_TIME        = 0x4,        /* 6 */
+	OSD_ATTR_OT_DATA_MODIFIED_TIME        = 0x5,        /* 6 */
+};
+
+/* same for collection */
+struct object_timestamps_attributes_page {
+	struct osd_attr_page_header hdr; /* id=C+3/3, size=0x1E */
+	struct osd_timestamp created_time;
+	struct osd_timestamp attributes_accessed_time;
+	struct osd_timestamp attributes_modified_time;
+	struct osd_timestamp data_accessed_time;
+	struct osd_timestamp data_modified_time;
+}  __packed;
+
+/* 7.1.2.19 Collections attributes page */
+/* TBD */
+
+/* 7.1.2.20 Root Policy/Security attributes page (OSD_APAGE_ROOT_SECURITY) */
+enum {
+	OSD_ATTR_RS_DEFAULT_SECURITY_METHOD           = 0x1,       /* 1      */
+	OSD_ATTR_RS_OLDEST_VALID_NONCE_LIMIT          = 0x2,       /* 6      */
+	OSD_ATTR_RS_NEWEST_VALID_NONCE_LIMIT          = 0x3,       /* 6      */
+	OSD_ATTR_RS_PARTITION_DEFAULT_SECURITY_METHOD = 0x6,       /* 1      */
+	OSD_ATTR_RS_SUPPORTED_SECURITY_METHODS        = 0x7,       /* 2      */
+	OSD_ATTR_RS_ADJUSTABLE_CLOCK                  = 0x9,       /* 6      */
+	OSD_ATTR_RS_MASTER_KEY_IDENTIFIER             = 0x7FFD,    /* 0 or 7 */
+	OSD_ATTR_RS_ROOT_KEY_IDENTIFIER               = 0x7FFE,    /* 0 or 7 */
+	OSD_ATTR_RS_SUPPORTED_INTEGRITY_ALGORITHM_0   = 0x80000000,/* 1,(x16)*/
+	OSD_ATTR_RS_SUPPORTED_DH_GROUP_0              = 0x80000010,/* 1,(x16)*/
+};
+
+struct root_security_attributes_page {
+	struct osd_attr_page_header hdr; /* id=R+5, size=0x3F */
+	u8 default_security_method;
+	u8 partition_default_security_method;
+	__be16 supported_security_methods;
+	u8 mki_valid_rki_valid;
+	struct osd_timestamp oldest_valid_nonce_limit;
+	struct osd_timestamp newest_valid_nonce_limit;
+	struct osd_timestamp adjustable_clock;
+	u8 master_key_identifier[32-25];
+	u8 root_key_identifier[39-32];
+	u8 supported_integrity_algorithm[16];
+	u8 supported_dh_group[16];
+}  __packed;
+
+/* 7.1.2.21 Partition Policy/Security attributes page
+ * (OSD_APAGE_PARTITION_SECURITY)
+ */
+enum {
+	OSD_ATTR_PS_DEFAULT_SECURITY_METHOD        = 0x1,        /* 1      */
+	OSD_ATTR_PS_OLDEST_VALID_NONCE             = 0x2,        /* 6      */
+	OSD_ATTR_PS_NEWEST_VALID_NONCE             = 0x3,        /* 6      */
+	OSD_ATTR_PS_REQUEST_NONCE_LIST_DEPTH       = 0x4,        /* 2      */
+	OSD_ATTR_PS_FROZEN_WORKING_KEY_BIT_MASK    = 0x5,        /* 2      */
+	OSD_ATTR_PS_PARTITION_KEY_IDENTIFIER       = 0x7FFF,     /* 0 or 7 */
+	OSD_ATTR_PS_WORKING_KEY_IDENTIFIER_FIRST   = 0x8000,     /* 0 or 7 */
+	OSD_ATTR_PS_WORKING_KEY_IDENTIFIER_LAST    = 0x800F,     /* 0 or 7 */
+	OSD_ATTR_PS_POLICY_ACCESS_TAG              = 0x40000001, /* 4      */
+	OSD_ATTR_PS_USER_OBJECT_POLICY_ACCESS_TAG  = 0x40000002, /* 4      */
+};
+
+struct partition_security_attributes_page {
+	struct osd_attr_page_header hdr; /* id=p+5, size=0x8f */
+	u8 reserved[3];
+	u8 default_security_method;
+	struct osd_timestamp oldest_valid_nonce;
+	struct osd_timestamp newest_valid_nonce;
+	__be16 request_nonce_list_depth;
+	__be16 frozen_working_key_bit_mask;
+	__be32 policy_access_tag;
+	__be32 user_object_policy_access_tag;
+	u8 pki_valid;
+	__be16 wki_00_0f_vld;
+	struct osd_key_identifier partition_key_identifier;
+	struct osd_key_identifier working_key_identifiers[16];
+}  __packed;
+
+/* 7.1.2.22/23 Collection/Object Policy-Security attributes page
+ * (OSD_APAGE_COLLECTION_SECURITY/OSD_APAGE_OBJECT_SECURITY)
+ */
+enum {
+	OSD_ATTR_OS_POLICY_ACCESS_TAG              = 0x40000001, /* 4      */
+};
+
+struct object_security_attributes_page {
+	struct osd_attr_page_header hdr; /* id=C+5/5, size=4 */
+	__be32 policy_access_tag;
+}  __packed;
+
+#endif /*ndef __OSD_ATTRIBUTES_H__*/
-- 
cgit v1.2.3


From c6572c983726fe3f3bb5f07e9afe3a9b8e402d1b Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 17:09:40 +0200
Subject: [SCSI] libosd: OSD version 2 Support

Add support for OSD2 at run time. It is now possible to run with
both OSDv1 and OSDv2 targets at the same time. The actual detection
should be preformed by the security manager, as the version is encoded
in the capability structure.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Reviewed-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/osd/osd_initiator.c | 94 ++++++++++++++++++++++++++++++++++------
 include/scsi/osd_initiator.h     | 39 +++++++++++++++++
 include/scsi/osd_protocol.h      | 90 ++++++++++++++++++++++++++++++++++++--
 3 files changed, 205 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index 3fd021a57e59..86a76cccfebd 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -59,36 +59,50 @@ static inline void build_test(void)
 {
 	/* structures were not packed */
 	BUILD_BUG_ON(sizeof(struct osd_capability) != OSD_CAP_LEN);
+	BUILD_BUG_ON(sizeof(struct osdv2_cdb) != OSD_TOTAL_CDB_LEN);
 	BUILD_BUG_ON(sizeof(struct osdv1_cdb) != OSDv1_TOTAL_CDB_LEN);
 }
 
 static unsigned _osd_req_cdb_len(struct osd_request *or)
 {
-	return OSDv1_TOTAL_CDB_LEN;
+	return osd_req_is_ver1(or) ? OSDv1_TOTAL_CDB_LEN : OSD_TOTAL_CDB_LEN;
 }
 
 static unsigned _osd_req_alist_elem_size(struct osd_request *or, unsigned len)
 {
-	return osdv1_attr_list_elem_size(len);
+	return osd_req_is_ver1(or) ?
+		osdv1_attr_list_elem_size(len) :
+		osdv2_attr_list_elem_size(len);
 }
 
 static unsigned _osd_req_alist_size(struct osd_request *or, void *list_head)
 {
-	return osdv1_list_size(list_head);
+	return osd_req_is_ver1(or) ?
+		osdv1_list_size(list_head) :
+		osdv2_list_size(list_head);
 }
 
 static unsigned _osd_req_sizeof_alist_header(struct osd_request *or)
 {
-	return sizeof(struct osdv1_attributes_list_header);
+	return osd_req_is_ver1(or) ?
+		sizeof(struct osdv1_attributes_list_header) :
+		sizeof(struct osdv2_attributes_list_header);
 }
 
 static void _osd_req_set_alist_type(struct osd_request *or,
 	void *list, int list_type)
 {
-	struct osdv1_attributes_list_header *attr_list = list;
+	if (osd_req_is_ver1(or)) {
+		struct osdv1_attributes_list_header *attr_list = list;
+
+		memset(attr_list, 0, sizeof(*attr_list));
+		attr_list->type = list_type;
+	} else {
+		struct osdv2_attributes_list_header *attr_list = list;
 
-	memset(attr_list, 0, sizeof(*attr_list));
-	attr_list->type = list_type;
+		memset(attr_list, 0, sizeof(*attr_list));
+		attr_list->type = list_type;
+	}
 }
 
 static bool _osd_req_is_alist_type(struct osd_request *or,
@@ -97,9 +111,13 @@ static bool _osd_req_is_alist_type(struct osd_request *or,
 	if (!list)
 		return false;
 
-	if (1) {
+	if (osd_req_is_ver1(or)) {
 		struct osdv1_attributes_list_header *attr_list = list;
 
+		return attr_list->type == list_type;
+	} else {
+		struct osdv2_attributes_list_header *attr_list = list;
+
 		return attr_list->type == list_type;
 	}
 }
@@ -110,15 +128,22 @@ static void _osd_req_encode_olist(struct osd_request *or,
 {
 	struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb);
 
-	cdbh->v1.list_identifier = list->list_identifier;
-	cdbh->v1.start_address = list->continuation_id;
+	if (osd_req_is_ver1(or)) {
+		cdbh->v1.list_identifier = list->list_identifier;
+		cdbh->v1.start_address = list->continuation_id;
+	} else {
+		cdbh->v2.list_identifier = list->list_identifier;
+		cdbh->v2.start_address = list->continuation_id;
+	}
 }
 
 static osd_cdb_offset osd_req_encode_offset(struct osd_request *or,
 	u64 offset, unsigned *padding)
 {
 	return __osd_encode_offset(offset, padding,
-				  OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
+			osd_req_is_ver1(or) ?
+				OSDv1_OFFSET_MIN_SHIFT : OSD_OFFSET_MIN_SHIFT,
+			OSD_OFFSET_MAX_SHIFT);
 }
 
 static struct osd_security_parameters *
@@ -126,7 +151,10 @@ _osd_req_sec_params(struct osd_request *or)
 {
 	struct osd_cdb *ocdb = &or->cdb;
 
-	return &ocdb->v1.sec_params;
+	if (osd_req_is_ver1(or))
+		return &ocdb->v1.sec_params;
+	else
+		return &ocdb->v2.sec_params;
 }
 
 void osd_dev_init(struct osd_dev *osdd, struct scsi_device *scsi_device)
@@ -134,6 +162,9 @@ void osd_dev_init(struct osd_dev *osdd, struct scsi_device *scsi_device)
 	memset(osdd, 0, sizeof(*osdd));
 	osdd->scsi_device = scsi_device;
 	osdd->def_timeout = BLK_DEFAULT_SG_TIMEOUT;
+#ifdef OSD_VER1_SUPPORT
+	osdd->version = OSD_VER2;
+#endif
 	/* TODO: Allocate pools for osd_request attributes ... */
 }
 EXPORT_SYMBOL(osd_dev_init);
@@ -334,10 +365,30 @@ static void _osdv1_req_encode_common(struct osd_request *or,
 	ocdb->h.v1.start_address = cpu_to_be64(offset);
 }
 
+static void _osdv2_req_encode_common(struct osd_request *or,
+	 __be16 act, const struct osd_obj_id *obj, u64 offset, u64 len)
+{
+	struct osdv2_cdb *ocdb = &or->cdb.v2;
+
+	OSD_DEBUG("OSDv2 execute opcode 0x%x\n", be16_to_cpu(act));
+
+	ocdb->h.varlen_cdb.opcode = VARIABLE_LENGTH_CMD;
+	ocdb->h.varlen_cdb.additional_cdb_length = OSD_ADDITIONAL_CDB_LENGTH;
+	ocdb->h.varlen_cdb.service_action = act;
+
+	ocdb->h.partition = cpu_to_be64(obj->partition);
+	ocdb->h.object = cpu_to_be64(obj->id);
+	ocdb->h.v2.length = cpu_to_be64(len);
+	ocdb->h.v2.start_address = cpu_to_be64(offset);
+}
+
 static void _osd_req_encode_common(struct osd_request *or,
 	__be16 act, const struct osd_obj_id *obj, u64 offset, u64 len)
 {
-	_osdv1_req_encode_common(or, act, obj, offset, len);
+	if (osd_req_is_ver1(or))
+		_osdv1_req_encode_common(or, act, obj, offset, len);
+	else
+		_osdv2_req_encode_common(or, act, obj, offset, len);
 }
 
 /*
@@ -546,6 +597,12 @@ void osd_req_flush_object(struct osd_request *or,
 	const struct osd_obj_id *obj, enum osd_options_flush_scope_values op,
 	/*V2*/ u64 offset, /*V2*/ u64 len)
 {
+	if (unlikely(osd_req_is_ver1(or) && (offset || len))) {
+		OSD_DEBUG("OSD Ver1 flush on specific range ignored\n");
+		offset = 0;
+		len = 0;
+	}
+
 	_osd_req_encode_common(or, OSD_ACT_FLUSH, obj, offset, len);
 	_osd_req_encode_flush(or, op);
 }
@@ -1169,6 +1226,10 @@ enum { OSD_SEC_CAP_V1_ALL_CAPS =
 	OSD_SEC_CAP_GLOBAL | OSD_SEC_CAP_DEV_MGMT
 };
 
+enum { OSD_SEC_CAP_V2_ALL_CAPS =
+	OSD_SEC_CAP_V1_ALL_CAPS | OSD_SEC_CAP_QUERY | OSD_SEC_CAP_M_OBJECT
+};
+
 void osd_sec_init_nosec_doall_caps(void *caps,
 	const struct osd_obj_id *obj, bool is_collection, const bool is_v1)
 {
@@ -1210,9 +1271,14 @@ void osd_sec_init_nosec_doall_caps(void *caps,
 }
 EXPORT_SYMBOL(osd_sec_init_nosec_doall_caps);
 
+/* FIXME: Extract version from caps pointer.
+ *        Also Pete's target only supports caps from OSDv1 for now
+ */
 void osd_set_caps(struct osd_cdb *cdb, const void *caps)
 {
-	memcpy(&cdb->v1.caps, caps, OSDv1_CAP_LEN);
+	bool is_ver1 = true;
+	/* NOTE: They start at same address */
+	memcpy(&cdb->v1.caps, caps, is_ver1 ? OSDv1_CAP_LEN : OSD_CAP_LEN);
 }
 
 bool osd_is_sec_alldata(struct osd_security_parameters *sec_parms __unused)
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index e84dc7aa5e34..8482777416d8 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -21,6 +21,23 @@
 
 /* Note: "NI" in comments below means "Not Implemented yet" */
 
+/* Configure of code:
+ * #undef if you *don't* want OSD v1 support in runtime.
+ * If #defined the initiator will dynamically configure to encode OSD v1
+ * CDB's if the target is detected to be OSD v1 only.
+ * OSD v2 only commands, options, and attributes will be ignored if target
+ * is v1 only.
+ * If #defined will result in bigger/slower code (OK Slower maybe not)
+ * Q: Should this be CONFIG_SCSI_OSD_VER1_SUPPORT and set from Kconfig?
+ */
+#define OSD_VER1_SUPPORT y
+
+enum osd_std_version {
+	OSD_VER_NONE = 0,
+	OSD_VER1 = 1,
+	OSD_VER2 = 2,
+};
+
 /*
  * Object-based Storage Device.
  * This object represents an OSD device.
@@ -31,6 +48,10 @@
 struct osd_dev {
 	struct scsi_device *scsi_device;
 	unsigned def_timeout;
+
+#ifdef OSD_VER1_SUPPORT
+	enum osd_std_version version;
+#endif
 };
 
 /* Retrieve/return osd_dev(s) for use by Kernel clients */
@@ -46,6 +67,14 @@ void osduld_unregister_test(unsigned ioctl);
 void osd_dev_init(struct osd_dev *od, struct scsi_device *scsi_device);
 void osd_dev_fini(struct osd_dev *od);
 
+/* we might want to use function vector in the future */
+static inline void osd_dev_set_ver(struct osd_dev *od, enum osd_std_version v)
+{
+#ifdef OSD_VER1_SUPPORT
+	od->version = v;
+#endif
+}
+
 struct osd_request;
 typedef void (osd_req_done_fn)(struct osd_request *or, void *private);
 
@@ -82,6 +111,16 @@ struct osd_request {
 	int async_error;
 };
 
+/* OSD Version control */
+static inline bool osd_req_is_ver1(struct osd_request *or)
+{
+#ifdef OSD_VER1_SUPPORT
+	return or->osd_dev->version == OSD_VER1;
+#else
+	return false;
+#endif
+}
+
 /*
  * How to use the osd library:
  *
diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h
index ce1a8771ea71..cd3cbf764650 100644
--- a/include/scsi/osd_protocol.h
+++ b/include/scsi/osd_protocol.h
@@ -25,12 +25,16 @@ enum {
 	OSDv1_TOTAL_CDB_LEN = OSDv1_ADDITIONAL_CDB_LENGTH + 8,
 	OSDv1_CAP_LEN = 80,
 	/* Latest supported version */
-	OSD_ADDITIONAL_CDB_LENGTH = OSDv1_ADDITIONAL_CDB_LENGTH,
-	OSD_TOTAL_CDB_LEN = OSDv1_TOTAL_CDB_LEN,
-	OSD_CAP_LEN = OSDv1_CAP_LEN,
+/* 	OSD_ADDITIONAL_CDB_LENGTH = 216,*/
+	OSD_ADDITIONAL_CDB_LENGTH =
+		OSDv1_ADDITIONAL_CDB_LENGTH, /* FIXME: Pete rev-001 sup */
+	OSD_TOTAL_CDB_LEN = OSD_ADDITIONAL_CDB_LENGTH + 8,
+/* 	OSD_CAP_LEN = 104,*/
+	OSD_CAP_LEN = OSDv1_CAP_LEN,/* FIXME: Pete rev-001 sup */
 
 	OSD_SYSTEMID_LEN = 20,
 	OSD_CRYPTO_KEYID_SIZE = 20,
+	/*FIXME: OSDv2_CRYPTO_KEYID_SIZE = 32,*/
 	OSD_CRYPTO_SEED_SIZE = 4,
 	OSD_CRYPTO_NONCE_SIZE = 12,
 	OSD_MAX_SENSE_LEN = 252, /* from SPC-3 */
@@ -108,6 +112,7 @@ enum {
 	OSD_OFFSET_MAX_BITS = 28,
 
 	OSDv1_OFFSET_MIN_SHIFT = 8,
+	OSD_OFFSET_MIN_SHIFT = 3,
 	OSD_OFFSET_MAX_SHIFT = 16,
 };
 
@@ -129,6 +134,16 @@ static inline osd_cdb_offset osd_encode_offset_v1(u64 offset, unsigned *padding)
 				OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
 }
 
+/* Minimum 8 bytes alignment
+ * Same as v1 but since exponent can be signed than a less than
+ * 256 alignment can be reached with small offsets (<2GB)
+ */
+static inline osd_cdb_offset osd_encode_offset_v2(u64 offset, unsigned *padding)
+{
+	return __osd_encode_offset(offset, padding,
+				   OSD_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
+}
+
 /* osd2r03: 5.2.1 Overview */
 struct osd_cdb_head {
 	struct scsi_varlen_cdb_hdr varlen_cdb;
@@ -144,6 +159,13 @@ struct osd_cdb_head {
 /*36*/			__be64		length;
 /*44*/			__be64		start_address;
 		} __packed v1;
+
+		struct __osdv2_cdb_addr_len {
+			/* called allocation_length in some commands */
+/*32*/			__be64	length;
+/*40*/			__be64	start_address;
+/*48*/			__be32 list_identifier;/* Rarely used */
+		} __packed v2;
 	};
 /*52*/	union { /* selected attributes mode Page/List/Single */
 		struct osd_attributes_page_mode {
@@ -182,6 +204,7 @@ struct osd_cdb_head {
 /*80*/
 
 /*160 v1*/
+/*184 v2*/
 struct osd_security_parameters {
 /*160*/u8	integrity_check_value[OSD_CRYPTO_KEYID_SIZE];
 /*180*/u8	request_nonce[OSD_CRYPTO_NONCE_SIZE];
@@ -189,6 +212,9 @@ struct osd_security_parameters {
 /*196*/osd_cdb_offset	data_out_integrity_check_offset;
 } __packed;
 /*200 v1*/
+/*224 v2*/
+
+/* FIXME: osdv2_security_parameters */
 
 struct osdv1_cdb {
 	struct osd_cdb_head h;
@@ -196,9 +222,17 @@ struct osdv1_cdb {
 	struct osd_security_parameters sec_params;
 } __packed;
 
+struct osdv2_cdb {
+	struct osd_cdb_head h;
+	u8 caps[OSD_CAP_LEN];
+	struct osd_security_parameters sec_params;
+	/* FIXME: osdv2_security_parameters */
+} __packed;
+
 struct osd_cdb {
 	union {
 		struct osdv1_cdb v1;
+		struct osdv2_cdb v2;
 		u8 buff[OSD_TOTAL_CDB_LEN];
 	};
 } __packed;
@@ -269,6 +303,7 @@ struct osd_attributes_list_attrid {
 /*
  * osd2r03: 7.1.3.3 List entry format for retrieved attributes and
  *                  for setting attributes
+ * NOTE: v2 is 8-bytes aligned, v1 is not aligned.
  */
 struct osd_attributes_list_element {
 	__be32 attr_page;
@@ -279,6 +314,7 @@ struct osd_attributes_list_element {
 
 enum {
 	OSDv1_ATTRIBUTES_ELEM_ALIGN = 1,
+	OSD_ATTRIBUTES_ELEM_ALIGN = 8,
 };
 
 enum {
@@ -292,6 +328,12 @@ static inline unsigned osdv1_attr_list_elem_size(unsigned len)
 		     OSDv1_ATTRIBUTES_ELEM_ALIGN);
 }
 
+static inline unsigned osdv2_attr_list_elem_size(unsigned len)
+{
+	return ALIGN(len + sizeof(struct osd_attributes_list_element),
+		     OSD_ATTRIBUTES_ELEM_ALIGN);
+}
+
 /*
  * osd2r03: 7.1.3 OSD attributes lists (Table 184) — List type values
  */
@@ -326,6 +368,21 @@ static inline unsigned osdv1_list_size(struct osdv1_attributes_list_header *h)
 	return be16_to_cpu(h->list_bytes);
 }
 
+struct osdv2_attributes_list_header {
+	u8 type;	/* lower 4-bits only */
+	u8 pad[3];
+/*4*/	__be32 list_bytes; /* Initiator shall set to zero. Only set by target */
+	/*
+	 * type=9 followed by struct osd_attributes_list_element's
+	 * type=E followed by struct osd_attributes_list_multi_header's
+	 */
+} __packed;
+
+static inline unsigned osdv2_list_size(struct osdv2_attributes_list_header *h)
+{
+	return be32_to_cpu(h->list_bytes);
+}
+
 /* (osd-r10 6.13)
  * osd2r03: 6.15 LIST (Table 79) LIST command parameter data.
  *	for root_lstchg below
@@ -469,11 +526,36 @@ struct osdv1_cap_object_descriptor {
 } __packed;
 /*80 v1*/
 
-struct osd_capability {
+/*56 v2*/
+struct osd_cap_object_descriptor {
+	union {
+		struct {
+/*56*/			__be32 allowed_attributes_access;
+/*60*/			__be32 policy_access_tag;
+/*64*/			__be16 boot_epoch;
+/*66*/			u8 reserved[6];
+/*72*/			__be64 allowed_partition_id;
+/*80*/			__be64 allowed_object_id;
+/*88*/			__be64 allowed_range_length;
+/*96*/			__be64 allowed_range_start;
+		} __packed obj_desc;
+
+/*56*/		u8 object_descriptor[48];
+	};
+} __packed;
+/*104 v2*/
+
+struct osdv1_capability {
 	struct osd_capability_head h;
 	struct osdv1_cap_object_descriptor od;
 } __packed;
 
+struct osd_capability {
+	struct osd_capability_head h;
+/* 	struct osd_cap_object_descriptor od;*/
+	struct osdv1_cap_object_descriptor od; /* FIXME: Pete rev-001 sup */
+} __packed;
+
 /**
  * osd_sec_set_caps - set cap-bits into the capabilities header
  *
-- 
cgit v1.2.3


From 1b9dce94c8a24a3f1a01fcdf688f2d903b32acdf Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 17:13:38 +0200
Subject: [SCSI] libosd: OSDv2 auto detection

Auto detect an OSDv2 or OSDv1 target at run time. Note how none
of the OSD API calls change. The tests do not know what device
version it is.

This test now passes against both the IBM-OSD-SIM OSD1 target
as well as OSC's OSD2 target.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Reviewed-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/osd/osd_initiator.c | 125 +++++++++++++++++++++++++++++++++++++++
 drivers/scsi/osd/osd_uld.c       |   5 ++
 include/scsi/osd_initiator.h     |   3 +
 3 files changed, 133 insertions(+)

(limited to 'include')

diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index 86a76cccfebd..f6340c2ceb25 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -41,6 +41,7 @@
 
 #include <scsi/osd_initiator.h>
 #include <scsi/osd_sec.h>
+#include <scsi/osd_attributes.h>
 #include <scsi/scsi_device.h>
 
 #include "osd_debug.h"
@@ -63,6 +64,130 @@ static inline void build_test(void)
 	BUILD_BUG_ON(sizeof(struct osdv1_cdb) != OSDv1_TOTAL_CDB_LEN);
 }
 
+static const char *_osd_ver_desc(struct osd_request *or)
+{
+	return osd_req_is_ver1(or) ? "OSD1" : "OSD2";
+}
+
+#define ATTR_DEF_RI(id, len) ATTR_DEF(OSD_APAGE_ROOT_INFORMATION, id, len)
+
+static int _osd_print_system_info(struct osd_dev *od, void *caps)
+{
+	struct osd_request *or;
+	struct osd_attr get_attrs[] = {
+		ATTR_DEF_RI(OSD_ATTR_RI_VENDOR_IDENTIFICATION, 8),
+		ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_IDENTIFICATION, 16),
+		ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_MODEL, 32),
+		ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_REVISION_LEVEL, 4),
+		ATTR_DEF_RI(OSD_ATTR_RI_PRODUCT_SERIAL_NUMBER, 64 /*variable*/),
+		ATTR_DEF_RI(OSD_ATTR_RI_OSD_NAME, 64 /*variable*/),
+		ATTR_DEF_RI(OSD_ATTR_RI_TOTAL_CAPACITY, 8),
+		ATTR_DEF_RI(OSD_ATTR_RI_USED_CAPACITY, 8),
+		ATTR_DEF_RI(OSD_ATTR_RI_NUMBER_OF_PARTITIONS, 8),
+		ATTR_DEF_RI(OSD_ATTR_RI_CLOCK, 6),
+		/* IBM-OSD-SIM Has a bug with this one put it last */
+		ATTR_DEF_RI(OSD_ATTR_RI_OSD_SYSTEM_ID, 20),
+	};
+	void *iter = NULL, *pFirst;
+	int nelem = ARRAY_SIZE(get_attrs), a = 0;
+	int ret;
+
+	or = osd_start_request(od, GFP_KERNEL);
+	if (!or)
+		return -ENOMEM;
+
+	/* get attrs */
+	osd_req_get_attributes(or, &osd_root_object);
+	osd_req_add_get_attr_list(or, get_attrs, ARRAY_SIZE(get_attrs));
+
+	ret = osd_finalize_request(or, 0, caps, NULL);
+	if (ret)
+		goto out;
+
+	ret = osd_execute_request(or);
+	if (ret) {
+		OSD_ERR("Failed to detect %s => %d\n", _osd_ver_desc(or), ret);
+		goto out;
+	}
+
+	osd_req_decode_get_attr_list(or, get_attrs, &nelem, &iter);
+
+	OSD_INFO("Detected %s device\n",
+		_osd_ver_desc(or));
+
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_VENDOR_IDENTIFICATION [%s]\n",
+		(char *)pFirst);
+
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_PRODUCT_IDENTIFICATION [%s]\n",
+		(char *)pFirst);
+
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_PRODUCT_MODEL [%s]\n",
+		(char *)pFirst);
+
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_PRODUCT_REVISION_LEVEL [%u]\n",
+		get_unaligned_be32(pFirst));
+
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_PRODUCT_SERIAL_NUMBER [%s]\n",
+		(char *)pFirst);
+
+	pFirst = get_attrs[a].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_OSD_NAME [%s]\n", (char *)pFirst);
+	a++;
+
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_TOTAL_CAPACITY [0x%llx]\n",
+		_LLU(get_unaligned_be64(pFirst)));
+
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_USED_CAPACITY [0x%llx]\n",
+		_LLU(get_unaligned_be64(pFirst)));
+
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_NUMBER_OF_PARTITIONS [%llu]\n",
+		_LLU(get_unaligned_be64(pFirst)));
+
+	/* FIXME: Where are the time utilities */
+	pFirst = get_attrs[a++].val_ptr;
+	OSD_INFO("OSD_ATTR_RI_CLOCK [0x%02x%02x%02x%02x%02x%02x]\n",
+		((char *)pFirst)[0], ((char *)pFirst)[1],
+		((char *)pFirst)[2], ((char *)pFirst)[3],
+		((char *)pFirst)[4], ((char *)pFirst)[5]);
+
+	if (a < nelem) { /* IBM-OSD-SIM bug, Might not have it */
+		unsigned len = get_attrs[a].len;
+		char sid_dump[32*4 + 2]; /* 2nibbles+space+ASCII */
+
+		hex_dump_to_buffer(get_attrs[a].val_ptr, len, 32, 1,
+				   sid_dump, sizeof(sid_dump), true);
+		OSD_INFO("OSD_ATTR_RI_OSD_SYSTEM_ID(%d) [%s]\n", len, sid_dump);
+		a++;
+	}
+out:
+	osd_end_request(or);
+	return ret;
+}
+
+int osd_auto_detect_ver(struct osd_dev *od, void *caps)
+{
+	int ret;
+
+	/* Auto-detect the osd version */
+	ret = _osd_print_system_info(od, caps);
+	if (ret) {
+		osd_dev_set_ver(od, OSD_VER1);
+		OSD_DEBUG("converting to OSD1\n");
+		ret = _osd_print_system_info(od, caps);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(osd_auto_detect_ver);
+
 static unsigned _osd_req_cdb_len(struct osd_request *or)
 {
 	return osd_req_is_ver1(or) ? OSDv1_TOTAL_CDB_LEN : OSD_TOTAL_CDB_LEN;
diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index cd4ca7cd9f75..f8b1a749958b 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -243,6 +243,7 @@ EXPORT_SYMBOL(osduld_put_device);
 static int __detect_osd(struct osd_uld_device *oud)
 {
 	struct scsi_device *scsi_device = oud->od.scsi_device;
+	char caps[OSD_CAP_LEN];
 	int error;
 
 	/* sending a test_unit_ready as first command seems to be needed
@@ -254,6 +255,10 @@ static int __detect_osd(struct osd_uld_device *oud)
 	if (error)
 		OSD_ERR("warning: scsi_test_unit_ready failed\n");
 
+	osd_sec_init_nosec_doall_caps(caps, &osd_root_object, false, true);
+	if (osd_auto_detect_ver(&oud->od, caps))
+		return -ENODEV;
+
 	return 0;
 }
 
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index 8482777416d8..24edeae48936 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -67,6 +67,9 @@ void osduld_unregister_test(unsigned ioctl);
 void osd_dev_init(struct osd_dev *od, struct scsi_device *scsi_device);
 void osd_dev_fini(struct osd_dev *od);
 
+/* some hi level device operations */
+int osd_auto_detect_ver(struct osd_dev *od, void *caps);    /* GFP_KERNEL */
+
 /* we might want to use function vector in the future */
 static inline void osd_dev_set_ver(struct osd_dev *od, enum osd_std_version v)
 {
-- 
cgit v1.2.3


From 98f3aea2bd4b4f9cd7a6a6479ed9410787f756fd Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Sun, 25 Jan 2009 17:15:16 +0200
Subject: [SCSI] libosd: SCSI/OSD Sense decoding support

Implementation of the osd_req_decode_sense() API. Can be called by
library users to decode what failed in command executions.

Add SCSI_OSD_DPRINT_SENSE Kconfig variable. Possible values are:
0 - Do not print any errors to messages file <KERN_ERR>
1 - (Default) Print only decoded errors that are not recoverable.
    Recoverable errors are those that the target has complied with
    the request but with a warning. For example read passed end of
    object will return zeros after the last valid byte.
2- Print all errors.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/osd/Kbuild          |   6 +
 drivers/scsi/osd/osd_initiator.c | 191 ++++++++++++++++++++++++++++
 include/scsi/osd_initiator.h     |  49 ++++++++
 include/scsi/osd_sense.h         | 260 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 506 insertions(+)
 create mode 100644 include/scsi/osd_sense.h

(limited to 'include')

diff --git a/drivers/scsi/osd/Kbuild b/drivers/scsi/osd/Kbuild
index 9d38248afcb7..0e207aa67d16 100644
--- a/drivers/scsi/osd/Kbuild
+++ b/drivers/scsi/osd/Kbuild
@@ -20,6 +20,12 @@ ccflags-y += -DCONFIG_SCSI_OSD_INITIATOR -DCONFIG_SCSI_OSD_INITIATOR_MODULE
 CONFIG_SCSI_OSD_ULD=m
 ccflags-y += -DCONFIG_SCSI_OSD_ULD -DCONFIG_SCSI_OSD_ULD_MODULE
 
+# CONFIG_SCSI_OSD_DPRINT_SENSE =
+#	0 - no print of errors
+#	1 - print errors
+#	2 - errors + warrnings
+ccflags-y += -DCONFIG_SCSI_OSD_DPRINT_SENSE=1
+
 # Uncomment to turn debug on
 # ccflags-y += -DCONFIG_SCSI_OSD_DEBUG
 
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index f6340c2ceb25..0bbbf271fbb0 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -42,6 +42,8 @@
 #include <scsi/osd_initiator.h>
 #include <scsi/osd_sec.h>
 #include <scsi/osd_attributes.h>
+#include <scsi/osd_sense.h>
+
 #include <scsi/scsi_device.h>
 
 #include "osd_debug.h"
@@ -1339,6 +1341,195 @@ int osd_finalize_request(struct osd_request *or,
 }
 EXPORT_SYMBOL(osd_finalize_request);
 
+#define OSD_SENSE_PRINT1(fmt, a...) \
+	do { \
+		if (__cur_sense_need_output) \
+			OSD_ERR(fmt, ##a); \
+	} while (0)
+
+#define OSD_SENSE_PRINT2(fmt, a...) OSD_SENSE_PRINT1("    " fmt, ##a)
+
+int osd_req_decode_sense_full(struct osd_request *or,
+	struct osd_sense_info *osi, bool silent,
+	struct osd_obj_id *bad_obj_list __unused, int max_obj __unused,
+	struct osd_attr *bad_attr_list, int max_attr)
+{
+	int sense_len, original_sense_len;
+	struct osd_sense_info local_osi;
+	struct scsi_sense_descriptor_based *ssdb;
+	void *cur_descriptor;
+#if (CONFIG_SCSI_OSD_DPRINT_SENSE == 0)
+	const bool __cur_sense_need_output = false;
+#else
+	bool __cur_sense_need_output = !silent;
+#endif
+
+	if (!or->request->errors)
+		return 0;
+
+	ssdb = or->request->sense;
+	sense_len = or->request->sense_len;
+	if ((sense_len < (int)sizeof(*ssdb) || !ssdb->sense_key)) {
+		OSD_ERR("Block-layer returned error(0x%x) but "
+			"sense_len(%u) || key(%d) is empty\n",
+			or->request->errors, sense_len, ssdb->sense_key);
+		return -EIO;
+	}
+
+	if ((ssdb->response_code != 0x72) && (ssdb->response_code != 0x73)) {
+		OSD_ERR("Unrecognized scsi sense: rcode=%x length=%d\n",
+			ssdb->response_code, sense_len);
+		return -EIO;
+	}
+
+	osi = osi ? : &local_osi;
+	memset(osi, 0, sizeof(*osi));
+	osi->key = ssdb->sense_key;
+	osi->additional_code = be16_to_cpu(ssdb->additional_sense_code);
+	original_sense_len = ssdb->additional_sense_length + 8;
+
+#if (CONFIG_SCSI_OSD_DPRINT_SENSE == 1)
+	if (__cur_sense_need_output)
+		__cur_sense_need_output = (osi->key > scsi_sk_recovered_error);
+#endif
+	OSD_SENSE_PRINT1("Main Sense information key=0x%x length(%d, %d) "
+			"additional_code=0x%x\n",
+			osi->key, original_sense_len, sense_len,
+			osi->additional_code);
+
+	if (original_sense_len < sense_len)
+		sense_len = original_sense_len;
+
+	cur_descriptor = ssdb->ssd;
+	sense_len -= sizeof(*ssdb);
+	while (sense_len > 0) {
+		struct scsi_sense_descriptor *ssd = cur_descriptor;
+		int cur_len = ssd->additional_length + 2;
+
+		sense_len -= cur_len;
+
+		if (sense_len < 0)
+			break; /* sense was truncated */
+
+		switch (ssd->descriptor_type) {
+		case scsi_sense_information:
+		case scsi_sense_command_specific_information:
+		{
+			struct scsi_sense_command_specific_data_descriptor
+				*sscd = cur_descriptor;
+
+			osi->command_info =
+				get_unaligned_be64(&sscd->information) ;
+			OSD_SENSE_PRINT2(
+				"command_specific_information 0x%llx \n",
+				_LLU(osi->command_info));
+			break;
+		}
+		case scsi_sense_key_specific:
+		{
+			struct scsi_sense_key_specific_data_descriptor
+				*ssks = cur_descriptor;
+
+			osi->sense_info = get_unaligned_be16(&ssks->value);
+			OSD_SENSE_PRINT2(
+				"sense_key_specific_information %u"
+				"sksv_cd_bpv_bp (0x%x)\n",
+				osi->sense_info, ssks->sksv_cd_bpv_bp);
+			break;
+		}
+		case osd_sense_object_identification:
+		{ /*FIXME: Keep first not last, Store in array*/
+			struct osd_sense_identification_data_descriptor
+				*osidd = cur_descriptor;
+
+			osi->not_initiated_command_functions =
+				le32_to_cpu(osidd->not_initiated_functions);
+			osi->completed_command_functions =
+				le32_to_cpu(osidd->completed_functions);
+			osi->obj.partition = be64_to_cpu(osidd->partition_id);
+			osi->obj.id = be64_to_cpu(osidd->object_id);
+			OSD_SENSE_PRINT2(
+				"object_identification pid=0x%llx oid=0x%llx\n",
+				_LLU(osi->obj.partition), _LLU(osi->obj.id));
+			OSD_SENSE_PRINT2(
+				"not_initiated_bits(%x) "
+				"completed_command_bits(%x)\n",
+				osi->not_initiated_command_functions,
+				osi->completed_command_functions);
+			break;
+		}
+		case osd_sense_response_integrity_check:
+		{
+			struct osd_sense_response_integrity_check_descriptor
+				*osricd = cur_descriptor;
+			const unsigned len =
+					  sizeof(osricd->integrity_check_value);
+			char key_dump[len*4 + 2]; /* 2nibbles+space+ASCII */
+
+			hex_dump_to_buffer(osricd->integrity_check_value, len,
+				       32, 1, key_dump, sizeof(key_dump), true);
+			OSD_SENSE_PRINT2("response_integrity [%s]\n", key_dump);
+		}
+		case osd_sense_attribute_identification:
+		{
+			struct osd_sense_attributes_data_descriptor
+				*osadd = cur_descriptor;
+			int len = min(cur_len, sense_len);
+			int i = 0;
+			struct osd_sense_attr *pattr = osadd->sense_attrs;
+
+			while (len < 0) {
+				u32 attr_page = be32_to_cpu(pattr->attr_page);
+				u32 attr_id = be32_to_cpu(pattr->attr_id);
+
+				if (i++ == 0) {
+					osi->attr.attr_page = attr_page;
+					osi->attr.attr_id = attr_id;
+				}
+
+				if (bad_attr_list && max_attr) {
+					bad_attr_list->attr_page = attr_page;
+					bad_attr_list->attr_id = attr_id;
+					bad_attr_list++;
+					max_attr--;
+				}
+				OSD_SENSE_PRINT2(
+					"osd_sense_attribute_identification"
+					"attr_page=0x%x attr_id=0x%x\n",
+					attr_page, attr_id);
+			}
+		}
+		/*These are not legal for OSD*/
+		case scsi_sense_field_replaceable_unit:
+			OSD_SENSE_PRINT2("scsi_sense_field_replaceable_unit\n");
+			break;
+		case scsi_sense_stream_commands:
+			OSD_SENSE_PRINT2("scsi_sense_stream_commands\n");
+			break;
+		case scsi_sense_block_commands:
+			OSD_SENSE_PRINT2("scsi_sense_block_commands\n");
+			break;
+		case scsi_sense_ata_return:
+			OSD_SENSE_PRINT2("scsi_sense_ata_return\n");
+			break;
+		default:
+			if (ssd->descriptor_type <= scsi_sense_Reserved_last)
+				OSD_SENSE_PRINT2(
+					"scsi_sense Reserved descriptor (0x%x)",
+					ssd->descriptor_type);
+			else
+				OSD_SENSE_PRINT2(
+					"scsi_sense Vendor descriptor (0x%x)",
+					ssd->descriptor_type);
+		}
+
+		cur_descriptor += cur_len;
+	}
+
+	return (osi->key > scsi_sk_recovered_error) ? -EIO : 0;
+}
+EXPORT_SYMBOL(osd_req_decode_sense_full);
+
 /*
  * Implementation of osd_sec.h API
  * TODO: Move to a separate osd_sec.c file at a later stage.
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index 24edeae48936..b24d9616eb46 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -216,6 +216,55 @@ int osd_execute_request(struct osd_request *or);
 int osd_execute_request_async(struct osd_request *or,
 	osd_req_done_fn *done, void *private);
 
+/**
+ * osd_req_decode_sense_full - Decode sense information after execution.
+ *
+ * @or:           - osd_request to examine
+ * @osi           - Recievs a more detailed error report information (optional).
+ * @silent        - Do not print to dmsg (Even if enabled)
+ * @bad_obj_list  - Some commands act on multiple objects. Failed objects will
+ *                  be recieved here (optional)
+ * @max_obj       - Size of @bad_obj_list.
+ * @bad_attr_list - List of failing attributes (optional)
+ * @max_attr      - Size of @bad_attr_list.
+ *
+ * After execution, sense + return code can be analyzed using this function. The
+ * return code is the final disposition on the error. So it is possible that a
+ * CHECK_CONDITION was returned from target but this will return NO_ERROR, for
+ * example on recovered errors. All parameters are optional if caller does
+ * not need any returned information.
+ * Note: This function will also dump the error to dmsg according to settings
+ * of the SCSI_OSD_DPRINT_SENSE Kconfig value. Set @silent if you know the
+ * command would routinely fail, to not spam the dmsg file.
+ */
+struct osd_sense_info {
+	int key;		/* one of enum scsi_sense_keys */
+	int additional_code ;	/* enum osd_additional_sense_codes */
+	union { /* Sense specific information */
+		u16 sense_info;
+		u16 cdb_field_offset; 	/* scsi_invalid_field_in_cdb */
+	};
+	union { /* Command specific information */
+		u64 command_info;
+	};
+
+	u32 not_initiated_command_functions; /* osd_command_functions_bits */
+	u32 completed_command_functions; /* osd_command_functions_bits */
+	struct osd_obj_id obj;
+	struct osd_attr attr;
+};
+
+int osd_req_decode_sense_full(struct osd_request *or,
+	struct osd_sense_info *osi, bool silent,
+	struct osd_obj_id *bad_obj_list, int max_obj,
+	struct osd_attr *bad_attr_list, int max_attr);
+
+static inline int osd_req_decode_sense(struct osd_request *or,
+	struct osd_sense_info *osi)
+{
+	return osd_req_decode_sense_full(or, osi, false, NULL, 0, NULL, 0);
+}
+
 /**
  * osd_end_request - return osd_request to free store
  *
diff --git a/include/scsi/osd_sense.h b/include/scsi/osd_sense.h
new file mode 100644
index 000000000000..ff9b33c773c7
--- /dev/null
+++ b/include/scsi/osd_sense.h
@@ -0,0 +1,260 @@
+/*
+ * osd_sense.h - OSD Related sense handling definitions.
+ *
+ * Copyright (C) 2008 Panasas Inc.  All rights reserved.
+ *
+ * Authors:
+ *   Boaz Harrosh <bharrosh@panasas.com>
+ *   Benny Halevy <bhalevy@panasas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ *
+ * This file contains types and constants that are defined by the protocol
+ * Note: All names and symbols are taken from the OSD standard's text.
+ */
+#ifndef __OSD_SENSE_H__
+#define __OSD_SENSE_H__
+
+#include <scsi/osd_protocol.h>
+
+/* SPC3r23 4.5.6 Sense key and sense code definitions table 27 */
+enum scsi_sense_keys {
+	scsi_sk_no_sense        = 0x0,
+	scsi_sk_recovered_error = 0x1,
+	scsi_sk_not_ready       = 0x2,
+	scsi_sk_medium_error    = 0x3,
+	scsi_sk_hardware_error  = 0x4,
+	scsi_sk_illegal_request = 0x5,
+	scsi_sk_unit_attention  = 0x6,
+	scsi_sk_data_protect    = 0x7,
+	scsi_sk_blank_check     = 0x8,
+	scsi_sk_vendor_specific = 0x9,
+	scsi_sk_copy_aborted    = 0xa,
+	scsi_sk_aborted_command = 0xb,
+	scsi_sk_volume_overflow = 0xd,
+	scsi_sk_miscompare      = 0xe,
+	scsi_sk_reserved        = 0xf,
+};
+
+/* SPC3r23 4.5.6 Sense key and sense code definitions table 28 */
+/* Note: only those which can be returned by an OSD target. Most of
+ *       these errors are taken care of by the generic scsi layer.
+ */
+enum osd_additional_sense_codes {
+	scsi_no_additional_sense_information			= 0x0000,
+	scsi_operation_in_progress				= 0x0016,
+	scsi_cleaning_requested					= 0x0017,
+	scsi_lunr_cause_not_reportable				= 0x0400,
+	scsi_logical_unit_is_in_process_of_becoming_ready	= 0x0401,
+	scsi_lunr_initializing_command_required			= 0x0402,
+	scsi_lunr_manual_intervention_required			= 0x0403,
+	scsi_lunr_operation_in_progress				= 0x0407,
+	scsi_lunr_selftest_in_progress				= 0x0409,
+	scsi_luna_asymmetric_access_state_transition		= 0x040a,
+	scsi_luna_target_port_in_standby_state			= 0x040b,
+	scsi_luna_target_port_in_unavailable_state		= 0x040c,
+	scsi_lunr_notify_enable_spinup_required			= 0x0411,
+	scsi_logical_unit_does_not_respond_to_selection		= 0x0500,
+	scsi_logical_unit_communication_failure			= 0x0800,
+	scsi_logical_unit_communication_timeout			= 0x0801,
+	scsi_logical_unit_communication_parity_error		= 0x0802,
+	scsi_error_log_overflow					= 0x0a00,
+	scsi_warning						= 0x0b00,
+	scsi_warning_specified_temperature_exceeded		= 0x0b01,
+	scsi_warning_enclosure_degraded				= 0x0b02,
+	scsi_write_error_unexpected_unsolicited_data		= 0x0c0c,
+	scsi_write_error_not_enough_unsolicited_data		= 0x0c0d,
+	scsi_invalid_information_unit				= 0x0e00,
+	scsi_invalid_field_in_command_information_unit		= 0x0e03,
+	scsi_read_error_failed_retransmission_request		= 0x1113,
+	scsi_parameter_list_length_error			= 0x1a00,
+	scsi_invalid_command_operation_code			= 0x2000,
+	scsi_invalid_field_in_cdb				= 0x2400,
+	osd_security_audit_value_frozen				= 0x2404,
+	osd_security_working_key_frozen				= 0x2405,
+	osd_nonce_not_unique					= 0x2406,
+	osd_nonce_timestamp_out_of_range			= 0x2407,
+	scsi_logical_unit_not_supported				= 0x2500,
+	scsi_invalid_field_in_parameter_list			= 0x2600,
+	scsi_parameter_not_supported				= 0x2601,
+	scsi_parameter_value_invalid				= 0x2602,
+	scsi_invalid_release_of_persistent_reservation		= 0x2604,
+	osd_invalid_dataout_buffer_integrity_check_value	= 0x260f,
+	scsi_not_ready_to_ready_change_medium_may_have_changed	= 0x2800,
+	scsi_power_on_reset_or_bus_device_reset_occurred	= 0x2900,
+	scsi_power_on_occurred					= 0x2901,
+	scsi_scsi_bus_reset_occurred				= 0x2902,
+	scsi_bus_device_reset_function_occurred			= 0x2903,
+	scsi_device_internal_reset				= 0x2904,
+	scsi_transceiver_mode_changed_to_single_ended		= 0x2905,
+	scsi_transceiver_mode_changed_to_lvd			= 0x2906,
+	scsi_i_t_nexus_loss_occurred				= 0x2907,
+	scsi_parameters_changed					= 0x2a00,
+	scsi_mode_parameters_changed				= 0x2a01,
+	scsi_asymmetric_access_state_changed			= 0x2a06,
+	scsi_priority_changed					= 0x2a08,
+	scsi_command_sequence_error				= 0x2c00,
+	scsi_previous_busy_status				= 0x2c07,
+	scsi_previous_task_set_full_status			= 0x2c08,
+	scsi_previous_reservation_conflict_status		= 0x2c09,
+	osd_partition_or_collection_contains_user_objects	= 0x2c0a,
+	scsi_commands_cleared_by_another_initiator		= 0x2f00,
+	scsi_cleaning_failure					= 0x3007,
+	scsi_enclosure_failure					= 0x3400,
+	scsi_enclosure_services_failure				= 0x3500,
+	scsi_unsupported_enclosure_function			= 0x3501,
+	scsi_enclosure_services_unavailable			= 0x3502,
+	scsi_enclosure_services_transfer_failure		= 0x3503,
+	scsi_enclosure_services_transfer_refused		= 0x3504,
+	scsi_enclosure_services_checksum_error			= 0x3505,
+	scsi_rounded_parameter					= 0x3700,
+	osd_read_past_end_of_user_object			= 0x3b17,
+	scsi_logical_unit_has_not_self_configured_yet		= 0x3e00,
+	scsi_logical_unit_failure				= 0x3e01,
+	scsi_timeout_on_logical_unit				= 0x3e02,
+	scsi_logical_unit_failed_selftest			= 0x3e03,
+	scsi_logical_unit_unable_to_update_selftest_log		= 0x3e04,
+	scsi_target_operating_conditions_have_changed		= 0x3f00,
+	scsi_microcode_has_been_changed				= 0x3f01,
+	scsi_inquiry_data_has_changed				= 0x3f03,
+	scsi_echo_buffer_overwritten				= 0x3f0f,
+	scsi_diagnostic_failure_on_component_nn_first		= 0x4080,
+	scsi_diagnostic_failure_on_component_nn_last		= 0x40ff,
+	scsi_message_error					= 0x4300,
+	scsi_internal_target_failure				= 0x4400,
+	scsi_select_or_reselect_failure				= 0x4500,
+	scsi_scsi_parity_error					= 0x4700,
+	scsi_data_phase_crc_error_detected			= 0x4701,
+	scsi_scsi_parity_error_detected_during_st_data_phase	= 0x4702,
+	scsi_asynchronous_information_protection_error_detected	= 0x4704,
+	scsi_protocol_service_crc_error				= 0x4705,
+	scsi_phy_test_function_in_progress			= 0x4706,
+	scsi_invalid_message_error				= 0x4900,
+	scsi_command_phase_error				= 0x4a00,
+	scsi_data_phase_error					= 0x4b00,
+	scsi_logical_unit_failed_self_configuration		= 0x4c00,
+	scsi_overlapped_commands_attempted			= 0x4e00,
+	osd_quota_error						= 0x5507,
+	scsi_failure_prediction_threshold_exceeded		= 0x5d00,
+	scsi_failure_prediction_threshold_exceeded_false	= 0x5dff,
+	scsi_voltage_fault					= 0x6500,
+};
+
+enum scsi_descriptor_types {
+	scsi_sense_information			= 0x0,
+	scsi_sense_command_specific_information	= 0x1,
+	scsi_sense_key_specific			= 0x2,
+	scsi_sense_field_replaceable_unit	= 0x3,
+	scsi_sense_stream_commands		= 0x4,
+	scsi_sense_block_commands		= 0x5,
+	osd_sense_object_identification		= 0x6,
+	osd_sense_response_integrity_check	= 0x7,
+	osd_sense_attribute_identification	= 0x8,
+	scsi_sense_ata_return			= 0x9,
+
+	scsi_sense_Reserved_first		= 0x0A,
+	scsi_sense_Reserved_last		= 0x7F,
+	scsi_sense_Vendor_specific_first	= 0x80,
+	scsi_sense_Vendor_specific_last		= 0xFF,
+};
+
+struct scsi_sense_descriptor { /* for picking into desc type */
+	u8	descriptor_type; /* one of enum scsi_descriptor_types */
+	u8	additional_length; /* n - 1 */
+	u8	data[];
+} __packed;
+
+/* OSD deploys only scsi descriptor_based sense buffers */
+struct scsi_sense_descriptor_based {
+/*0*/	u8 	response_code; /* 0x72 or 0x73 */
+/*1*/	u8 	sense_key; /* one of enum scsi_sense_keys (4 lower bits) */
+/*2*/	__be16	additional_sense_code; /* enum osd_additional_sense_codes */
+/*4*/	u8	Reserved[3];
+/*7*/	u8	additional_sense_length; /* n - 7 */
+/*8*/	struct	scsi_sense_descriptor ssd[0]; /* variable length, 1 or more */
+} __packed;
+
+/* some descriptors deployed by OSD */
+
+/* SPC3r23 4.5.2.3 Command-specific information sense data descriptor */
+/* Note: this is the same for descriptor_type=00 but with type=00 the
+ *        Reserved[0] == 0x80 (ie. bit-7 set)
+ */
+struct scsi_sense_command_specific_data_descriptor {
+/*0*/	u8	descriptor_type; /* (00h/01h) */
+/*1*/	u8	additional_length; /* (0Ah) */
+/*2*/	u8	Reserved[2];
+/*4*/	__be64  information;
+} __packed;
+/*12*/
+
+struct scsi_sense_key_specific_data_descriptor {
+/*0*/	u8	descriptor_type; /* (02h) */
+/*1*/	u8	additional_length; /* (06h) */
+/*2*/	u8	Reserved[2];
+/* SKSV, C/D, Reserved (2), BPV, BIT POINTER (3) */
+/*4*/	u8	sksv_cd_bpv_bp;
+/*5*/	__be16	value; /* field-pointer/progress-value/retry-count/... */
+/*7*/	u8	Reserved2;
+} __packed;
+/*8*/
+
+/* 4.16.2.1 OSD error identification sense data descriptor - table 52 */
+/* Note: these bits are defined LE order for easy definition, this way the BIT()
+ * number is the same as in the documentation. Below members at
+ * osd_sense_identification_data_descriptor are therefore defined __le32.
+ */
+enum osd_command_functions_bits {
+	OSD_CFB_COMMAND		 = BIT(4),
+	OSD_CFB_CMD_CAP_VERIFIED = BIT(5),
+	OSD_CFB_VALIDATION	 = BIT(7),
+	OSD_CFB_IMP_ST_ATT	 = BIT(12),
+	OSD_CFB_SET_ATT		 = BIT(20),
+	OSD_CFB_SA_CAP_VERIFIED	 = BIT(21),
+	OSD_CFB_GET_ATT		 = BIT(28),
+	OSD_CFB_GA_CAP_VERIFIED	 = BIT(29),
+};
+
+struct osd_sense_identification_data_descriptor {
+/*0*/	u8	descriptor_type; /* (06h) */
+/*1*/	u8	additional_length; /* (1Eh) */
+/*2*/	u8	Reserved[6];
+/*8*/	__le32	not_initiated_functions; /*osd_command_functions_bits*/
+/*12*/	__le32	completed_functions; /*osd_command_functions_bits*/
+/*16*/ 	__be64	partition_id;
+/*24*/	__be64	object_id;
+} __packed;
+/*32*/
+
+struct osd_sense_response_integrity_check_descriptor {
+/*0*/	u8	descriptor_type; /* (07h) */
+/*1*/	u8	additional_length; /* (20h) */
+/*2*/	u8	integrity_check_value[32]; /*FIXME: OSDv2_CRYPTO_KEYID_SIZE*/
+} __packed;
+/*34*/
+
+struct osd_sense_attributes_data_descriptor {
+/*0*/	u8	descriptor_type; /* (08h) */
+/*1*/	u8	additional_length; /* (n-2) */
+/*2*/	u8	Reserved[6];
+	struct osd_sense_attr {
+/*8*/		__be32	attr_page;
+/*12*/		__be32	attr_id;
+/*16*/	} sense_attrs[0]; /* 1 or more */
+} __packed;
+/*variable*/
+
+/* Dig into scsi_sk_illegal_request/scsi_invalid_field_in_cdb errors */
+
+/*FIXME: Support also field in CAPS*/
+#define OSD_CDB_OFFSET(F) offsetof(struct osd_cdb_head, F)
+
+enum osdv2_cdb_field_offset {
+	OSDv1_CFO_STARTING_BYTE	= OSD_CDB_OFFSET(v1.start_address),
+	OSD_CFO_STARTING_BYTE	= OSD_CDB_OFFSET(v2.start_address),
+	OSD_CFO_PARTITION_ID	= OSD_CDB_OFFSET(partition),
+	OSD_CFO_OBJECT_ID	= OSD_CDB_OFFSET(object),
+};
+
+#endif /* ndef __OSD_SENSE_H__ */
-- 
cgit v1.2.3


From f078727b250c2653fc9a564f15547c17ebac3f99 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Sun, 14 Dec 2008 01:23:45 +0900
Subject: [SCSI] remove scsi_req_map_sg

No one uses scsi_execute_async with data transfer now. We can remove
scsi_req_map_sg.

Only scsi_eh_lock_door uses scsi_execute_async. scsi_eh_lock_door
doesn't handle sense and the callback. So we can remove
scsi_io_context too.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/scsi_error.c  |  34 +++++---
 drivers/scsi/scsi_lib.c    | 203 +--------------------------------------------
 include/scsi/scsi_device.h |   6 --
 3 files changed, 25 insertions(+), 218 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index ad6a1370761e..0c2c73be1974 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1441,6 +1441,11 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
 	}
 }
 
+static void eh_lock_door_done(struct request *req, int uptodate)
+{
+	__blk_put_request(req->q, req);
+}
+
 /**
  * scsi_eh_lock_door - Prevent medium removal for the specified device
  * @sdev:	SCSI device to prevent medium removal
@@ -1463,19 +1468,28 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
  */
 static void scsi_eh_lock_door(struct scsi_device *sdev)
 {
-	unsigned char cmnd[MAX_COMMAND_SIZE];
+	struct request *req;
 
-	cmnd[0] = ALLOW_MEDIUM_REMOVAL;
-	cmnd[1] = 0;
-	cmnd[2] = 0;
-	cmnd[3] = 0;
-	cmnd[4] = SCSI_REMOVAL_PREVENT;
-	cmnd[5] = 0;
+	req = blk_get_request(sdev->request_queue, READ, GFP_KERNEL);
+	if (!req)
+		return;
 
-	scsi_execute_async(sdev, cmnd, 6, DMA_NONE, NULL, 0, 0, 10 * HZ,
-			   5, NULL, NULL, GFP_KERNEL);
-}
+	req->cmd[0] = ALLOW_MEDIUM_REMOVAL;
+	req->cmd[1] = 0;
+	req->cmd[2] = 0;
+	req->cmd[3] = 0;
+	req->cmd[4] = SCSI_REMOVAL_PREVENT;
+	req->cmd[5] = 0;
 
+	req->cmd_len = COMMAND_SIZE(req->cmd[0]);
+
+	req->cmd_type = REQ_TYPE_BLOCK_PC;
+	req->cmd_flags |= REQ_QUIET;
+	req->timeout = 10 * HZ;
+	req->retries = 5;
+
+	blk_execute_rq_nowait(req->q, NULL, req, 1, eh_lock_door_done);
+}
 
 /**
  * scsi_restart_operations - restart io operations to the specified host.
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index b82ffd90632e..4b13e36d3aa0 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -277,196 +277,6 @@ int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
 }
 EXPORT_SYMBOL(scsi_execute_req);
 
-struct scsi_io_context {
-	void *data;
-	void (*done)(void *data, char *sense, int result, int resid);
-	char sense[SCSI_SENSE_BUFFERSIZE];
-};
-
-static struct kmem_cache *scsi_io_context_cache;
-
-static void scsi_end_async(struct request *req, int uptodate)
-{
-	struct scsi_io_context *sioc = req->end_io_data;
-
-	if (sioc->done)
-		sioc->done(sioc->data, sioc->sense, req->errors, req->data_len);
-
-	kmem_cache_free(scsi_io_context_cache, sioc);
-	__blk_put_request(req->q, req);
-}
-
-static int scsi_merge_bio(struct request *rq, struct bio *bio)
-{
-	struct request_queue *q = rq->q;
-
-	bio->bi_flags &= ~(1 << BIO_SEG_VALID);
-	if (rq_data_dir(rq) == WRITE)
-		bio->bi_rw |= (1 << BIO_RW);
-	blk_queue_bounce(q, &bio);
-
-	return blk_rq_append_bio(q, rq, bio);
-}
-
-static void scsi_bi_endio(struct bio *bio, int error)
-{
-	bio_put(bio);
-}
-
-/**
- * scsi_req_map_sg - map a scatterlist into a request
- * @rq:		request to fill
- * @sgl:	scatterlist
- * @nsegs:	number of elements
- * @bufflen:	len of buffer
- * @gfp:	memory allocation flags
- *
- * scsi_req_map_sg maps a scatterlist into a request so that the
- * request can be sent to the block layer. We do not trust the scatterlist
- * sent to use, as some ULDs use that struct to only organize the pages.
- */
-static int scsi_req_map_sg(struct request *rq, struct scatterlist *sgl,
-			   int nsegs, unsigned bufflen, gfp_t gfp)
-{
-	struct request_queue *q = rq->q;
-	int nr_pages = (bufflen + sgl[0].offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	unsigned int data_len = bufflen, len, bytes, off;
-	struct scatterlist *sg;
-	struct page *page;
-	struct bio *bio = NULL;
-	int i, err, nr_vecs = 0;
-
-	for_each_sg(sgl, sg, nsegs, i) {
-		page = sg_page(sg);
-		off = sg->offset;
-		len = sg->length;
-
-		while (len > 0 && data_len > 0) {
-			/*
-			 * sg sends a scatterlist that is larger than
-			 * the data_len it wants transferred for certain
-			 * IO sizes
-			 */
-			bytes = min_t(unsigned int, len, PAGE_SIZE - off);
-			bytes = min(bytes, data_len);
-
-			if (!bio) {
-				nr_vecs = min_t(int, BIO_MAX_PAGES, nr_pages);
-				nr_pages -= nr_vecs;
-
-				bio = bio_alloc(gfp, nr_vecs);
-				if (!bio) {
-					err = -ENOMEM;
-					goto free_bios;
-				}
-				bio->bi_end_io = scsi_bi_endio;
-			}
-
-			if (bio_add_pc_page(q, bio, page, bytes, off) !=
-			    bytes) {
-				bio_put(bio);
-				err = -EINVAL;
-				goto free_bios;
-			}
-
-			if (bio->bi_vcnt >= nr_vecs) {
-				err = scsi_merge_bio(rq, bio);
-				if (err) {
-					bio_endio(bio, 0);
-					goto free_bios;
-				}
-				bio = NULL;
-			}
-
-			page++;
-			len -= bytes;
-			data_len -=bytes;
-			off = 0;
-		}
-	}
-
-	rq->buffer = rq->data = NULL;
-	rq->data_len = bufflen;
-	return 0;
-
-free_bios:
-	while ((bio = rq->bio) != NULL) {
-		rq->bio = bio->bi_next;
-		/*
-		 * call endio instead of bio_put incase it was bounced
-		 */
-		bio_endio(bio, 0);
-	}
-
-	return err;
-}
-
-/**
- * scsi_execute_async - insert request
- * @sdev:	scsi device
- * @cmd:	scsi command
- * @cmd_len:	length of scsi cdb
- * @data_direction: DMA_TO_DEVICE, DMA_FROM_DEVICE, or DMA_NONE
- * @buffer:	data buffer (this can be a kernel buffer or scatterlist)
- * @bufflen:	len of buffer
- * @use_sg:	if buffer is a scatterlist this is the number of elements
- * @timeout:	request timeout in seconds
- * @retries:	number of times to retry request
- * @privdata:	data passed to done()
- * @done:	callback function when done
- * @gfp:	memory allocation flags
- */
-int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd,
-		       int cmd_len, int data_direction, void *buffer, unsigned bufflen,
-		       int use_sg, int timeout, int retries, void *privdata,
-		       void (*done)(void *, char *, int, int), gfp_t gfp)
-{
-	struct request *req;
-	struct scsi_io_context *sioc;
-	int err = 0;
-	int write = (data_direction == DMA_TO_DEVICE);
-
-	sioc = kmem_cache_zalloc(scsi_io_context_cache, gfp);
-	if (!sioc)
-		return DRIVER_ERROR << 24;
-
-	req = blk_get_request(sdev->request_queue, write, gfp);
-	if (!req)
-		goto free_sense;
-	req->cmd_type = REQ_TYPE_BLOCK_PC;
-	req->cmd_flags |= REQ_QUIET;
-
-	if (use_sg)
-		err = scsi_req_map_sg(req, buffer, use_sg, bufflen, gfp);
-	else if (bufflen)
-		err = blk_rq_map_kern(req->q, req, buffer, bufflen, gfp);
-
-	if (err)
-		goto free_req;
-
-	req->cmd_len = cmd_len;
-	memset(req->cmd, 0, BLK_MAX_CDB); /* ATAPI hates garbage after CDB */
-	memcpy(req->cmd, cmd, req->cmd_len);
-	req->sense = sioc->sense;
-	req->sense_len = 0;
-	req->timeout = timeout;
-	req->retries = retries;
-	req->end_io_data = sioc;
-
-	sioc->data = privdata;
-	sioc->done = done;
-
-	blk_execute_rq_nowait(req->q, NULL, req, 1, scsi_end_async);
-	return 0;
-
-free_req:
-	blk_put_request(req);
-free_sense:
-	kmem_cache_free(scsi_io_context_cache, sioc);
-	return DRIVER_ERROR << 24;
-}
-EXPORT_SYMBOL_GPL(scsi_execute_async);
-
 /*
  * Function:    scsi_init_cmd_errh()
  *
@@ -1920,20 +1730,12 @@ int __init scsi_init_queue(void)
 {
 	int i;
 
-	scsi_io_context_cache = kmem_cache_create("scsi_io_context",
-					sizeof(struct scsi_io_context),
-					0, 0, NULL);
-	if (!scsi_io_context_cache) {
-		printk(KERN_ERR "SCSI: can't init scsi io context cache\n");
-		return -ENOMEM;
-	}
-
 	scsi_sdb_cache = kmem_cache_create("scsi_data_buffer",
 					   sizeof(struct scsi_data_buffer),
 					   0, 0, NULL);
 	if (!scsi_sdb_cache) {
 		printk(KERN_ERR "SCSI: can't init scsi sdb cache\n");
-		goto cleanup_io_context;
+		return -ENOMEM;
 	}
 
 	for (i = 0; i < SG_MEMPOOL_NR; i++) {
@@ -1968,8 +1770,6 @@ cleanup_sdb:
 			kmem_cache_destroy(sgp->slab);
 	}
 	kmem_cache_destroy(scsi_sdb_cache);
-cleanup_io_context:
-	kmem_cache_destroy(scsi_io_context_cache);
 
 	return -ENOMEM;
 }
@@ -1978,7 +1778,6 @@ void scsi_exit_queue(void)
 {
 	int i;
 
-	kmem_cache_destroy(scsi_io_context_cache);
 	kmem_cache_destroy(scsi_sdb_cache);
 
 	for (i = 0; i < SG_MEMPOOL_NR; i++) {
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 15b09266b7ff..3f566af3f101 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -371,12 +371,6 @@ extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
 			    int data_direction, void *buffer, unsigned bufflen,
 			    struct scsi_sense_hdr *, int timeout, int retries,
 			    int *resid);
-extern int scsi_execute_async(struct scsi_device *sdev,
-			      const unsigned char *cmd, int cmd_len, int data_direction,
-			      void *buffer, unsigned bufflen, int use_sg,
-			      int timeout, int retries, void *privdata,
-			      void (*done)(void *, char *, int, int),
-			      gfp_t gfp);
 
 static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
 {
-- 
cgit v1.2.3


From f290f1970f01287eaaffc798a677594a57ebd65e Mon Sep 17 00:00:00 2001
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Sun, 8 Feb 2009 21:59:48 -0600
Subject: [SCSI] Make scsi.h independent of the rest of the scsi includes

This allows it to compile and be used on the ps3 platform that wants
to use the #define values in scsi.h without actually having
CONFIG_SCSI set.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 block/cmd-filter.c       |  1 +
 include/scsi/scsi.h      | 19 ++-----------------
 include/scsi/scsi_cmnd.h | 15 +++++++++++++++
 3 files changed, 18 insertions(+), 17 deletions(-)

(limited to 'include')

diff --git a/block/cmd-filter.c b/block/cmd-filter.c
index 504b275e1b90..572bbc2f900d 100644
--- a/block/cmd-filter.c
+++ b/block/cmd-filter.c
@@ -22,6 +22,7 @@
 #include <linux/spinlock.h>
 #include <linux/capability.h>
 #include <linux/bitops.h>
+#include <linux/blkdev.h>
 
 #include <scsi/scsi.h>
 #include <linux/cdrom.h>
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 80d7f60e2663..084478e14d24 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -9,7 +9,8 @@
 #define _SCSI_SCSI_H
 
 #include <linux/types.h>
-#include <scsi/scsi_cmnd.h>
+
+struct scsi_cmnd;
 
 /*
  * The maximum number of SG segments that we will put inside a
@@ -439,22 +440,6 @@ static inline int scsi_is_wlun(unsigned int lun)
 #define host_byte(result)   (((result) >> 16) & 0xff)
 #define driver_byte(result) (((result) >> 24) & 0xff)
 
-static inline void set_msg_byte(struct scsi_cmnd *cmd, char status)
-{
-	cmd->result |= status << 8;
-}
-
-static inline void set_host_byte(struct scsi_cmnd *cmd, char status)
-{
-	cmd->result |= status << 16;
-}
-
-static inline void set_driver_byte(struct scsi_cmnd *cmd, char status)
-{
-	cmd->result |= status << 24;
-}
-
-
 #define sense_class(sense)  (((sense) >> 4) & 0x7)
 #define sense_error(sense)  ((sense) & 0xf)
 #define sense_valid(sense)  ((sense) & 0x80);
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 855bf95963e7..43b50d36925c 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -291,4 +291,19 @@ static inline struct scsi_data_buffer *scsi_prot(struct scsi_cmnd *cmd)
 #define scsi_for_each_prot_sg(cmd, sg, nseg, __i)		\
 	for_each_sg(scsi_prot_sglist(cmd), sg, nseg, __i)
 
+static inline void set_msg_byte(struct scsi_cmnd *cmd, char status)
+{
+	cmd->result |= status << 8;
+}
+
+static inline void set_host_byte(struct scsi_cmnd *cmd, char status)
+{
+	cmd->result |= status << 16;
+}
+
+static inline void set_driver_byte(struct scsi_cmnd *cmd, char status)
+{
+	cmd->result |= status << 24;
+}
+
 #endif /* _SCSI_SCSI_CMND_H */
-- 
cgit v1.2.3


From 446c92b2901bedb3725d29b4e73def8aba623ffc Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Thu, 12 Mar 2009 18:03:16 +0100
Subject: [ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is a fix for the following crash observed in 2.6.29-rc3:
http://lkml.org/lkml/2009/1/29/150

On ARM it doesn't make sense to trace a naked function because then
mcount is called without stack and frame pointer being set up and there
is no chance to restore the lr register to the value before mcount was
called.

Reported-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Tested-by: Matthias Kaehlcke <matthias@kaehlcke.net>

Cc: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: Steven Rostedt <rostedt@home.goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/fiq.c           |  4 ++--
 arch/arm/mm/copypage-feroceon.c |  2 +-
 arch/arm/mm/copypage-v3.c       |  2 +-
 arch/arm/mm/copypage-v4mc.c     |  2 +-
 arch/arm/mm/copypage-v4wb.c     |  2 +-
 arch/arm/mm/copypage-v4wt.c     |  2 +-
 arch/arm/mm/copypage-xsc3.c     |  2 +-
 arch/arm/mm/copypage-xscale.c   |  2 +-
 include/linux/compiler-gcc.h    | 10 +++++++++-
 9 files changed, 18 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index 36f81d967979..6ff7919613d7 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -88,7 +88,7 @@ void set_fiq_handler(void *start, unsigned int length)
  * disable irqs for the duration.  Note - these functions are almost
  * entirely coded in assembly.
  */
-void __attribute__((naked)) set_fiq_regs(struct pt_regs *regs)
+void __naked set_fiq_regs(struct pt_regs *regs)
 {
 	register unsigned long tmp;
 	asm volatile (
@@ -106,7 +106,7 @@ void __attribute__((naked)) set_fiq_regs(struct pt_regs *regs)
 	: "r" (&regs->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | FIQ_MODE));
 }
 
-void __attribute__((naked)) get_fiq_regs(struct pt_regs *regs)
+void __naked get_fiq_regs(struct pt_regs *regs)
 {
 	register unsigned long tmp;
 	asm volatile (
diff --git a/arch/arm/mm/copypage-feroceon.c b/arch/arm/mm/copypage-feroceon.c
index c3ba6a94da0c..70997d5bee2d 100644
--- a/arch/arm/mm/copypage-feroceon.c
+++ b/arch/arm/mm/copypage-feroceon.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/highmem.h>
 
-static void __attribute__((naked))
+static void __naked
 feroceon_copy_user_page(void *kto, const void *kfrom)
 {
 	asm("\
diff --git a/arch/arm/mm/copypage-v3.c b/arch/arm/mm/copypage-v3.c
index 70ed96c8af8e..de9c06854ad7 100644
--- a/arch/arm/mm/copypage-v3.c
+++ b/arch/arm/mm/copypage-v3.c
@@ -15,7 +15,7 @@
  *
  * FIXME: do we need to handle cache stuff...
  */
-static void __attribute__((naked))
+static void __naked
 v3_copy_user_page(void *kto, const void *kfrom)
 {
 	asm("\n\
diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
index 1601698b9800..7370a7142b04 100644
--- a/arch/arm/mm/copypage-v4mc.c
+++ b/arch/arm/mm/copypage-v4mc.c
@@ -44,7 +44,7 @@ static DEFINE_SPINLOCK(minicache_lock);
  * instruction.  If your processor does not supply this, you have to write your
  * own copy_user_highpage that does the right thing.
  */
-static void __attribute__((naked))
+static void __naked
 mc_copy_user_page(void *from, void *to)
 {
 	asm volatile(
diff --git a/arch/arm/mm/copypage-v4wb.c b/arch/arm/mm/copypage-v4wb.c
index 3ec93dab7656..9ab098414227 100644
--- a/arch/arm/mm/copypage-v4wb.c
+++ b/arch/arm/mm/copypage-v4wb.c
@@ -22,7 +22,7 @@
  * instruction.  If your processor does not supply this, you have to write your
  * own copy_user_highpage that does the right thing.
  */
-static void __attribute__((naked))
+static void __naked
 v4wb_copy_user_page(void *kto, const void *kfrom)
 {
 	asm("\
diff --git a/arch/arm/mm/copypage-v4wt.c b/arch/arm/mm/copypage-v4wt.c
index 0f1188efae45..300efafd6643 100644
--- a/arch/arm/mm/copypage-v4wt.c
+++ b/arch/arm/mm/copypage-v4wt.c
@@ -20,7 +20,7 @@
  * dirty data in the cache.  However, we do have to ensure that
  * subsequent reads are up to date.
  */
-static void __attribute__((naked))
+static void __naked
 v4wt_copy_user_page(void *kto, const void *kfrom)
 {
 	asm("\
diff --git a/arch/arm/mm/copypage-xsc3.c b/arch/arm/mm/copypage-xsc3.c
index 39a994542cad..bc4525f5ab23 100644
--- a/arch/arm/mm/copypage-xsc3.c
+++ b/arch/arm/mm/copypage-xsc3.c
@@ -29,7 +29,7 @@
  * if we eventually end up using our copied page.
  *
  */
-static void __attribute__((naked))
+static void __naked
 xsc3_mc_copy_user_page(void *kto, const void *kfrom)
 {
 	asm("\
diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c
index d18f2397ee2d..76824d3e966a 100644
--- a/arch/arm/mm/copypage-xscale.c
+++ b/arch/arm/mm/copypage-xscale.c
@@ -42,7 +42,7 @@ static DEFINE_SPINLOCK(minicache_lock);
  * Dcache aliasing issue.  The writes will be forwarded to the write buffer,
  * and merged as appropriate.
  */
-static void __attribute__((naked))
+static void __naked
 mc_copy_user_page(void *from, void *to)
 {
 	/*
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 1514d534deeb..a3ed7cb8ca34 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -52,7 +52,15 @@
 #define __deprecated			__attribute__((deprecated))
 #define __packed			__attribute__((packed))
 #define __weak				__attribute__((weak))
-#define __naked				__attribute__((naked))
+
+/*
+ * it doesn't make sense on ARM (currently the only user of __naked) to trace
+ * naked functions because then mcount is called without stack and frame pointer
+ * being set up and there is no chance to restore the lr register to the value
+ * before mcount was called.
+ */
+#define __naked				__attribute__((naked)) notrace
+
 #define __noreturn			__attribute__((noreturn))
 
 /*
-- 
cgit v1.2.3


From 4bb9c5c02153dfc89a6c73a6f32091413805ad7d Mon Sep 17 00:00:00 2001
From: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
Date: Thu, 12 Mar 2009 17:45:27 -0700
Subject: VM, x86, PAT: Change is_linear_pfn_mapping to not use vm_pgoff

Impact: fix false positive PAT warnings - also fix VirtalBox hang

Use of vma->vm_pgoff to identify the pfnmaps that are fully
mapped at mmap time is broken. vm_pgoff is set by generic mmap
code even for cases where drivers are setting up the mappings
at the fault time.

The problem was originally reported here:

 http://marc.info/?l=linux-kernel&m=123383810628583&w=2

Change is_linear_pfn_mapping logic to overload VM_INSERTPAGE
flag along with VM_PFNMAP to mean full PFNMAP setup at mmap
time.

Problem also tracked at:

 http://bugzilla.kernel.org/show_bug.cgi?id=12800

Reported-by: Thomas Hellstrom <thellstrom@vmware.com>
Tested-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha>@intel.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: "ebiederm@xmission.com" <ebiederm@xmission.com>
Cc: <stable@kernel.org> # only for 2.6.29.1, not .28
LKML-Reference: <20090313004527.GA7176@linux-os.sc.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/pat.c  |  5 +++--
 include/linux/mm.h | 15 +++++++++++++--
 mm/memory.c        |  6 ++++--
 3 files changed, 20 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index e0ab173b6974..21bc1f787ae2 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -641,10 +641,11 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
 	is_ram = pat_pagerange_is_ram(paddr, paddr + size);
 
 	/*
-	 * reserve_pfn_range() doesn't support RAM pages.
+	 * reserve_pfn_range() doesn't support RAM pages. Maintain the current
+	 * behavior with RAM pages by returning success.
 	 */
 	if (is_ram != 0)
-		return -EINVAL;
+		return 0;
 
 	ret = reserve_memtype(paddr, paddr + size, want_flags, &flags);
 	if (ret)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 065cdf8c09fb..3daa05feed9f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -98,7 +98,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_HUGETLB	0x00400000	/* Huge TLB Page VM */
 #define VM_NONLINEAR	0x00800000	/* Is non-linear (remap_file_pages) */
 #define VM_MAPPED_COPY	0x01000000	/* T if mapped copy of data (nommu mmap) */
-#define VM_INSERTPAGE	0x02000000	/* The vma has had "vm_insert_page()" done on it */
+#define VM_INSERTPAGE	0x02000000	/* The vma has had "vm_insert_page()" done on it. Refer note in VM_PFNMAP_AT_MMAP below */
 #define VM_ALWAYSDUMP	0x04000000	/* Always include in core dumps */
 
 #define VM_CAN_NONLINEAR 0x08000000	/* Has ->fault & does nonlinear pages */
@@ -126,6 +126,17 @@ extern unsigned int kobjsize(const void *objp);
  */
 #define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP)
 
+/*
+ * pfnmap vmas that are fully mapped at mmap time (not mapped on fault).
+ * Used by x86 PAT to identify such PFNMAP mappings and optimize their handling.
+ * Note VM_INSERTPAGE flag is overloaded here. i.e,
+ * VM_INSERTPAGE && !VM_PFNMAP implies
+ *     The vma has had "vm_insert_page()" done on it
+ * VM_INSERTPAGE && VM_PFNMAP implies
+ *     The vma is PFNMAP with full mapping at mmap time
+ */
+#define VM_PFNMAP_AT_MMAP (VM_INSERTPAGE | VM_PFNMAP)
+
 /*
  * mapping from the currently active vm_flags protection bits (the
  * low four bits) to a page protection mask..
@@ -145,7 +156,7 @@ extern pgprot_t protection_map[16];
  */
 static inline int is_linear_pfn_mapping(struct vm_area_struct *vma)
 {
-	return ((vma->vm_flags & VM_PFNMAP) && vma->vm_pgoff);
+	return ((vma->vm_flags & VM_PFNMAP_AT_MMAP) == VM_PFNMAP_AT_MMAP);
 }
 
 static inline int is_pfn_mapping(struct vm_area_struct *vma)
diff --git a/mm/memory.c b/mm/memory.c
index baa999e87cd2..d7df5babcba9 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1665,9 +1665,10 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
 	 * behaviour that some programs depend on. We mark the "original"
 	 * un-COW'ed pages by matching them up with "vma->vm_pgoff".
 	 */
-	if (addr == vma->vm_start && end == vma->vm_end)
+	if (addr == vma->vm_start && end == vma->vm_end) {
 		vma->vm_pgoff = pfn;
-	else if (is_cow_mapping(vma->vm_flags))
+		vma->vm_flags |= VM_PFNMAP_AT_MMAP;
+	} else if (is_cow_mapping(vma->vm_flags))
 		return -EINVAL;
 
 	vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
@@ -1679,6 +1680,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
 		 * needed from higher level routine calling unmap_vmas
 		 */
 		vma->vm_flags &= ~(VM_IO | VM_RESERVED | VM_PFNMAP);
+		vma->vm_flags &= ~VM_PFNMAP_AT_MMAP;
 		return -EINVAL;
 	}
 
-- 
cgit v1.2.3


From d883f7f1b75c8dcafa891f7b9e69c5a2f0ff6d66 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 2 Feb 2009 16:55:45 +1100
Subject: drm: Use resource_size_t for drm_get_resource_{start, len}

The DRM uses its own wrappers to obtain resources from PCI devices,
which currently convert the resource_size_t into an unsigned long.

This is broken on 32-bit platforms with >32-bit physical address
space.

This fixes them, along with a few occurences of unsigned long used
to store such a resource in drivers.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
---
 drivers/gpu/drm/drm_bufs.c          | 4 ++--
 drivers/gpu/drm/i915/i915_dma.c     | 2 +-
 drivers/gpu/drm/mga/mga_drv.h       | 4 ++--
 drivers/gpu/drm/radeon/radeon_drv.h | 2 +-
 drivers/gpu/drm/savage/savage_bci.c | 8 ++++----
 include/drm/drmP.h                  | 6 +++---
 include/drm/drm_crtc.h              | 2 +-
 7 files changed, 14 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
index 12715d3c078d..fab899eec051 100644
--- a/drivers/gpu/drm/drm_bufs.c
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -36,13 +36,13 @@
 #include <linux/vmalloc.h>
 #include "drmP.h"
 
-unsigned long drm_get_resource_start(struct drm_device *dev, unsigned int resource)
+resource_size_t drm_get_resource_start(struct drm_device *dev, unsigned int resource)
 {
 	return pci_resource_start(dev->pdev, resource);
 }
 EXPORT_SYMBOL(drm_get_resource_start);
 
-unsigned long drm_get_resource_len(struct drm_device *dev, unsigned int resource)
+resource_size_t drm_get_resource_len(struct drm_device *dev, unsigned int resource)
 {
 	return pci_resource_len(dev->pdev, resource);
 }
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 6d21b9e48b89..4d9f5c6818ca 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1057,7 +1057,7 @@ void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
 int i915_driver_load(struct drm_device *dev, unsigned long flags)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	unsigned long base, size;
+	resource_size_t base, size;
 	int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;
 
 	/* i915 has 4 more counters */
diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
index 88257c276eb9..6bf4de990325 100644
--- a/drivers/gpu/drm/mga/mga_drv.h
+++ b/drivers/gpu/drm/mga/mga_drv.h
@@ -113,8 +113,8 @@ typedef struct drm_mga_private {
 	 * \sa drm_mga_private_t::mmio
 	 */
 	/*@{ */
-	u32 mmio_base;		   /**< Bus address of base of MMIO. */
-	u32 mmio_size;		   /**< Size of the MMIO region. */
+	resource_size_t mmio_base;	   /**< Bus address of base of MMIO. */
+	resource_size_t mmio_size;	   /**< Size of the MMIO region. */
 	/*@} */
 
 	u32 clear_cmd;
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index 490bc7ceef60..c608e22f73f9 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -316,7 +316,7 @@ typedef struct drm_radeon_private {
 
 	/* starting from here on, data is preserved accross an open */
 	uint32_t flags;		/* see radeon_chip_flags */
-	unsigned long fb_aper_offset;
+	resource_size_t fb_aper_offset;
 
 	int num_gb_pipes;
 	int track_flush;
diff --git a/drivers/gpu/drm/savage/savage_bci.c b/drivers/gpu/drm/savage/savage_bci.c
index d465b2f9c1cd..456cd040f31a 100644
--- a/drivers/gpu/drm/savage/savage_bci.c
+++ b/drivers/gpu/drm/savage/savage_bci.c
@@ -599,8 +599,8 @@ int savage_driver_firstopen(struct drm_device *dev)
 			    drm_mtrr_add(dev_priv->mtrr[2].base,
 					 dev_priv->mtrr[2].size, DRM_MTRR_WC);
 		} else {
-			DRM_ERROR("strange pci_resource_len %08lx\n",
-				  drm_get_resource_len(dev, 0));
+			DRM_ERROR("strange pci_resource_len %08llx\n",
+				  (unsigned long long)drm_get_resource_len(dev, 0));
 		}
 	} else if (dev_priv->chipset != S3_SUPERSAVAGE &&
 		   dev_priv->chipset != S3_SAVAGE2000) {
@@ -620,8 +620,8 @@ int savage_driver_firstopen(struct drm_device *dev)
 			    drm_mtrr_add(dev_priv->mtrr[0].base,
 					 dev_priv->mtrr[0].size, DRM_MTRR_WC);
 		} else {
-			DRM_ERROR("strange pci_resource_len %08lx\n",
-				  drm_get_resource_len(dev, 1));
+			DRM_ERROR("strange pci_resource_len %08llx\n",
+				  (unsigned long long)drm_get_resource_len(dev, 1));
 		}
 	} else {
 		mmio_base = drm_get_resource_start(dev, 0);
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index e5f4ae989abf..34e1676b53d1 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1173,10 +1173,10 @@ extern int drm_freebufs(struct drm_device *dev, void *data,
 extern int drm_mapbufs(struct drm_device *dev, void *data,
 		       struct drm_file *file_priv);
 extern int drm_order(unsigned long size);
-extern unsigned long drm_get_resource_start(struct drm_device *dev,
+extern resource_size_t drm_get_resource_start(struct drm_device *dev,
+					      unsigned int resource);
+extern resource_size_t drm_get_resource_len(struct drm_device *dev,
 					    unsigned int resource);
-extern unsigned long drm_get_resource_len(struct drm_device *dev,
-					  unsigned int resource);
 
 				/* DMA support (drm_dma.h) */
 extern int drm_dma_setup(struct drm_device *dev);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 5ded1acfb543..33ae98ced80e 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -550,7 +550,7 @@ struct drm_mode_config {
 	int min_width, min_height;
 	int max_width, max_height;
 	struct drm_mode_config_funcs *funcs;
-	unsigned long fb_base;
+	resource_size_t fb_base;
 
 	/* pointers to standard properties */
 	struct list_head property_blob_list;
-- 
cgit v1.2.3


From f77d390c9779c496aa5b99ec832996fb76bb1d13 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 2 Feb 2009 16:55:46 +1100
Subject: drm: Split drm_map and drm_local_map

Once upon a time, the DRM made the distinction between the drm_map
data structure exchanged with user space and the drm_local_map used
in the kernel.

For some reasons, while the BSD port still has that "feature", the
linux part abused drm_map for kernel internal usage as the local
map only existed as a typedef of the struct drm_map.

This patch fixes it by declaring struct drm_local_map separately
(though its content is currently identical to the userspace variant),
and changing the kernel code to only use that, except when it's a
user<->kernel interface (ie. ioctl).

This allows subsequent changes to the in-kernel format

I've also replaced the use of drm_local_map_t with struct drm_local_map
in a couple of places. Mostly by accident but they are the same (the
former is a typedef of the later) and I have some remote plans and
half finished patch to completely kill the drm_local_map_t typedef
so I left those bits in.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
---
 drivers/gpu/drm/drm_bufs.c      | 46 ++++++++++++++++++++++------------------
 drivers/gpu/drm/drm_context.c   |  4 ++--
 drivers/gpu/drm/drm_drv.c       |  2 +-
 drivers/gpu/drm/drm_gem.c       |  2 +-
 drivers/gpu/drm/drm_memory.c    |  6 +++---
 drivers/gpu/drm/drm_proc.c      |  2 +-
 drivers/gpu/drm/drm_vm.c        | 12 +++++------
 drivers/gpu/drm/i810/i810_drv.h |  4 ++--
 drivers/gpu/drm/i830/i830_drv.h |  4 ++--
 drivers/gpu/drm/i915/i915_gem.c |  2 +-
 include/drm/drmP.h              | 47 ++++++++++++++++++++++++++---------------
 11 files changed, 75 insertions(+), 56 deletions(-)

(limited to 'include')

diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
index fab899eec051..1b8dbd5961bc 100644
--- a/drivers/gpu/drm/drm_bufs.c
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -50,7 +50,7 @@ resource_size_t drm_get_resource_len(struct drm_device *dev, unsigned int resour
 EXPORT_SYMBOL(drm_get_resource_len);
 
 static struct drm_map_list *drm_find_matching_map(struct drm_device *dev,
-					     drm_local_map_t *map)
+						  struct drm_local_map *map)
 {
 	struct drm_map_list *entry;
 	list_for_each_entry(entry, &dev->maplist, head) {
@@ -89,13 +89,8 @@ static int drm_map_handle(struct drm_device *dev, struct drm_hash_item *hash,
 }
 
 /**
- * Ioctl to specify a range of memory that is available for mapping by a non-root process.
- *
- * \param inode device inode.
- * \param file_priv DRM file private.
- * \param cmd command.
- * \param arg pointer to a drm_map structure.
- * \return zero on success or a negative value on error.
+ * Core function to create a range of memory available for mapping by a
+ * non-root process.
  *
  * Adjusts the memory offset to its absolute value according to the mapping
  * type.  Adds the map to the map list drm_device::maplist. Adds MTRR's where
@@ -106,7 +101,7 @@ static int drm_addmap_core(struct drm_device * dev, unsigned int offset,
 			   enum drm_map_flags flags,
 			   struct drm_map_list ** maplist)
 {
-	struct drm_map *map;
+	struct drm_local_map *map;
 	struct drm_map_list *list;
 	drm_dma_handle_t *dmah;
 	unsigned long user_token;
@@ -329,7 +324,7 @@ static int drm_addmap_core(struct drm_device * dev, unsigned int offset,
 
 int drm_addmap(struct drm_device * dev, unsigned int offset,
 	       unsigned int size, enum drm_map_type type,
-	       enum drm_map_flags flags, drm_local_map_t ** map_ptr)
+	       enum drm_map_flags flags, struct drm_local_map ** map_ptr)
 {
 	struct drm_map_list *list;
 	int rc;
@@ -342,6 +337,17 @@ int drm_addmap(struct drm_device * dev, unsigned int offset,
 
 EXPORT_SYMBOL(drm_addmap);
 
+/**
+ * Ioctl to specify a range of memory that is available for mapping by a
+ * non-root process.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a drm_map structure.
+ * \return zero on success or a negative value on error.
+ *
+ */
 int drm_addmap_ioctl(struct drm_device *dev, void *data,
 		     struct drm_file *file_priv)
 {
@@ -367,19 +373,13 @@ int drm_addmap_ioctl(struct drm_device *dev, void *data,
  * Remove a map private from list and deallocate resources if the mapping
  * isn't in use.
  *
- * \param inode device inode.
- * \param file_priv DRM file private.
- * \param cmd command.
- * \param arg pointer to a struct drm_map structure.
- * \return zero on success or a negative value on error.
- *
  * Searches the map on drm_device::maplist, removes it from the list, see if
  * its being used, and free any associate resource (such as MTRR's) if it's not
  * being on use.
  *
  * \sa drm_addmap
  */
-int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map)
+int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map)
 {
 	struct drm_map_list *r_list = NULL, *list_t;
 	drm_dma_handle_t dmah;
@@ -442,7 +442,7 @@ int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map)
 }
 EXPORT_SYMBOL(drm_rmmap_locked);
 
-int drm_rmmap(struct drm_device *dev, drm_local_map_t *map)
+int drm_rmmap(struct drm_device *dev, struct drm_local_map *map)
 {
 	int ret;
 
@@ -462,12 +462,18 @@ EXPORT_SYMBOL(drm_rmmap);
  * One use case might be after addmap is allowed for normal users for SHM and
  * gets used by drivers that the server doesn't need to care about.  This seems
  * unlikely.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg pointer to a struct drm_map structure.
+ * \return zero on success or a negative value on error.
  */
 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
 		    struct drm_file *file_priv)
 {
 	struct drm_map *request = data;
-	drm_local_map_t *map = NULL;
+	struct drm_local_map *map = NULL;
 	struct drm_map_list *r_list;
 	int ret;
 
@@ -1534,7 +1540,7 @@ int drm_mapbufs(struct drm_device *dev, void *data,
 			&& (dma->flags & _DRM_DMA_USE_SG))
 		    || (drm_core_check_feature(dev, DRIVER_FB_DMA)
 			&& (dma->flags & _DRM_DMA_USE_FB))) {
-			struct drm_map *map = dev->agp_buffer_map;
+			struct drm_local_map *map = dev->agp_buffer_map;
 			unsigned long token = dev->agp_buffer_token;
 
 			if (!map) {
diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
index 809ec0f03452..7d1e53c10d4b 100644
--- a/drivers/gpu/drm/drm_context.c
+++ b/drivers/gpu/drm/drm_context.c
@@ -143,7 +143,7 @@ int drm_getsareactx(struct drm_device *dev, void *data,
 		    struct drm_file *file_priv)
 {
 	struct drm_ctx_priv_map *request = data;
-	struct drm_map *map;
+	struct drm_local_map *map;
 	struct drm_map_list *_entry;
 
 	mutex_lock(&dev->struct_mutex);
@@ -186,7 +186,7 @@ int drm_setsareactx(struct drm_device *dev, void *data,
 		    struct drm_file *file_priv)
 {
 	struct drm_ctx_priv_map *request = data;
-	struct drm_map *map = NULL;
+	struct drm_local_map *map = NULL;
 	struct drm_map_list *r_list = NULL;
 
 	mutex_lock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 14c7a23dc157..6394c2b67658 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -530,7 +530,7 @@ int drm_ioctl(struct inode *inode, struct file *filp,
 
 EXPORT_SYMBOL(drm_ioctl);
 
-drm_local_map_t *drm_getsarea(struct drm_device *dev)
+struct drm_local_map *drm_getsarea(struct drm_device *dev)
 {
 	struct drm_map_list *entry;
 
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 88d3368ffddd..c1173d8c4588 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -502,7 +502,7 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 	struct drm_file *priv = filp->private_data;
 	struct drm_device *dev = priv->minor->dev;
 	struct drm_gem_mm *mm = dev->mm_private;
-	struct drm_map *map = NULL;
+	struct drm_local_map *map = NULL;
 	struct drm_gem_object *obj;
 	struct drm_hash_item *hash;
 	unsigned long prot;
diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c
index bcc869bc4092..0c707f533eab 100644
--- a/drivers/gpu/drm/drm_memory.c
+++ b/drivers/gpu/drm/drm_memory.c
@@ -159,7 +159,7 @@ static inline void *agp_remap(unsigned long offset, unsigned long size,
 
 #endif				/* debug_memory */
 
-void drm_core_ioremap(struct drm_map *map, struct drm_device *dev)
+void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
 {
 	if (drm_core_has_AGP(dev) &&
 	    dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
@@ -169,7 +169,7 @@ void drm_core_ioremap(struct drm_map *map, struct drm_device *dev)
 }
 EXPORT_SYMBOL(drm_core_ioremap);
 
-void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev)
+void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
 {
 	if (drm_core_has_AGP(dev) &&
 	    dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP)
@@ -179,7 +179,7 @@ void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev)
 }
 EXPORT_SYMBOL(drm_core_ioremap_wc);
 
-void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev)
+void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
 {
 	if (!map->handle || !map->size)
 		return;
diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c
index 8df849f66830..c1959badf11f 100644
--- a/drivers/gpu/drm/drm_proc.c
+++ b/drivers/gpu/drm/drm_proc.c
@@ -247,7 +247,7 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
 	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
 	int len = 0;
-	struct drm_map *map;
+	struct drm_local_map *map;
 	struct drm_map_list *r_list;
 
 	/* Hardcoded from _DRM_FRAME_BUFFER,
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index 3ffae021d280..0d8bbd72ec55 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -91,7 +91,7 @@ static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
 	struct drm_file *priv = vma->vm_file->private_data;
 	struct drm_device *dev = priv->minor->dev;
-	struct drm_map *map = NULL;
+	struct drm_local_map *map = NULL;
 	struct drm_map_list *r_list;
 	struct drm_hash_item *hash;
 
@@ -176,7 +176,7 @@ static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
  */
 static int drm_do_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
-	struct drm_map *map = (struct drm_map *) vma->vm_private_data;
+	struct drm_local_map *map = vma->vm_private_data;
 	unsigned long offset;
 	unsigned long i;
 	struct page *page;
@@ -209,7 +209,7 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
 	struct drm_file *priv = vma->vm_file->private_data;
 	struct drm_device *dev = priv->minor->dev;
 	struct drm_vma_entry *pt, *temp;
-	struct drm_map *map;
+	struct drm_local_map *map;
 	struct drm_map_list *r_list;
 	int found_maps = 0;
 
@@ -322,7 +322,7 @@ static int drm_do_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
  */
 static int drm_do_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
-	struct drm_map *map = (struct drm_map *) vma->vm_private_data;
+	struct drm_local_map *map = vma->vm_private_data;
 	struct drm_file *priv = vma->vm_file->private_data;
 	struct drm_device *dev = priv->minor->dev;
 	struct drm_sg_mem *entry = dev->sg;
@@ -512,7 +512,7 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
 	return 0;
 }
 
-unsigned long drm_core_get_map_ofs(struct drm_map * map)
+unsigned long drm_core_get_map_ofs(struct drm_local_map * map)
 {
 	return map->offset;
 }
@@ -547,7 +547,7 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 {
 	struct drm_file *priv = filp->private_data;
 	struct drm_device *dev = priv->minor->dev;
-	struct drm_map *map = NULL;
+	struct drm_local_map *map = NULL;
 	unsigned long offset = 0;
 	struct drm_hash_item *hash;
 
diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
index 0118849a5672..21e2691f28f9 100644
--- a/drivers/gpu/drm/i810/i810_drv.h
+++ b/drivers/gpu/drm/i810/i810_drv.h
@@ -77,8 +77,8 @@ typedef struct _drm_i810_ring_buffer {
 } drm_i810_ring_buffer_t;
 
 typedef struct drm_i810_private {
-	struct drm_map *sarea_map;
-	struct drm_map *mmio_map;
+	struct drm_local_map *sarea_map;
+	struct drm_local_map *mmio_map;
 
 	drm_i810_sarea_t *sarea_priv;
 	drm_i810_ring_buffer_t ring;
diff --git a/drivers/gpu/drm/i830/i830_drv.h b/drivers/gpu/drm/i830/i830_drv.h
index b5bf8cc0fdaa..da82afe4ded5 100644
--- a/drivers/gpu/drm/i830/i830_drv.h
+++ b/drivers/gpu/drm/i830/i830_drv.h
@@ -84,8 +84,8 @@ typedef struct _drm_i830_ring_buffer {
 } drm_i830_ring_buffer_t;
 
 typedef struct drm_i830_private {
-	struct drm_map *sarea_map;
-	struct drm_map *mmio_map;
+	struct drm_local_map *sarea_map;
+	struct drm_local_map *mmio_map;
 
 	drm_i830_sarea_t *sarea_priv;
 	drm_i830_ring_buffer_t ring;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 37427e4016cb..592b24efeb48 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -627,7 +627,7 @@ i915_gem_create_mmap_offset(struct drm_gem_object *obj)
 	struct drm_gem_mm *mm = dev->mm_private;
 	struct drm_i915_gem_object *obj_priv = obj->driver_private;
 	struct drm_map_list *list;
-	struct drm_map *map;
+	struct drm_local_map *map;
 	int ret = 0;
 
 	/* Set the object up for mmap'ing */
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 34e1676b53d1..03a7c11cb24d 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -522,20 +522,33 @@ struct drm_mm {
 };
 
 
+/**
+ * Kernel side of a mapping
+ */
+struct drm_local_map {
+	unsigned long offset;	 /**< Requested physical address (0 for SAREA)*/
+	unsigned long size;	 /**< Requested physical size (bytes) */
+	enum drm_map_type type;	 /**< Type of memory to map */
+	enum drm_map_flags flags;	 /**< Flags */
+	void *handle;		 /**< User-space: "Handle" to pass to mmap() */
+				 /**< Kernel-space: kernel-virtual address */
+	int mtrr;		 /**< MTRR slot used */
+};
+
+typedef struct drm_local_map drm_local_map_t;
+
 /**
  * Mappings list
  */
 struct drm_map_list {
 	struct list_head head;		/**< list head */
 	struct drm_hash_item hash;
-	struct drm_map *map;			/**< mapping */
+	struct drm_local_map *map;	/**< mapping */
 	uint64_t user_token;
 	struct drm_master *master;
 	struct drm_mm_node *file_offset_node;	/**< fake offset */
 };
 
-typedef struct drm_map drm_local_map_t;
-
 /**
  * Context handle list
  */
@@ -560,7 +573,7 @@ struct drm_ati_pcigart_info {
 	dma_addr_t bus_addr;
 	dma_addr_t table_mask;
 	struct drm_dma_handle *table_handle;
-	drm_local_map_t mapping;
+	struct drm_local_map mapping;
 	int table_size;
 };
 
@@ -747,7 +760,7 @@ struct drm_driver {
 					struct drm_file *file_priv);
 	void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
 					    struct drm_file *file_priv);
-	unsigned long (*get_map_ofs) (struct drm_map * map);
+	unsigned long (*get_map_ofs) (struct drm_local_map * map);
 	unsigned long (*get_reg_ofs) (struct drm_device *dev);
 	void (*set_version) (struct drm_device *dev,
 			     struct drm_set_version *sv);
@@ -932,7 +945,7 @@ struct drm_device {
 	sigset_t sigmask;
 
 	struct drm_driver *driver;
-	drm_local_map_t *agp_buffer_map;
+	struct drm_local_map *agp_buffer_map;
 	unsigned int agp_buffer_token;
 	struct drm_minor *control;		/**< Control node for card */
 	struct drm_minor *primary;		/**< render type primary screen head */
@@ -1049,7 +1062,7 @@ extern int drm_release(struct inode *inode, struct file *filp);
 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
 extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
 extern void drm_vm_open_locked(struct vm_area_struct *vma);
-extern unsigned long drm_core_get_map_ofs(struct drm_map * map);
+extern unsigned long drm_core_get_map_ofs(struct drm_local_map * map);
 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
 
@@ -1155,11 +1168,11 @@ extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request
 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
 extern int drm_addmap(struct drm_device *dev, unsigned int offset,
 		      unsigned int size, enum drm_map_type type,
-		      enum drm_map_flags flags, drm_local_map_t ** map_ptr);
+		      enum drm_map_flags flags, struct drm_local_map **map_ptr);
 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
 			    struct drm_file *file_priv);
-extern int drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
-extern int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map);
+extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
+extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
 			   struct drm_file *file_priv);
 extern int drm_addbufs(struct drm_device *dev, void *data,
@@ -1261,7 +1274,7 @@ extern struct proc_dir_entry *drm_proc_root;
 
 extern struct idr drm_minors_idr;
 
-extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
+extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
 
 				/* Proc support (drm_proc.h) */
 extern int drm_proc_init(struct drm_minor *minor, int minor_id,
@@ -1378,12 +1391,12 @@ int drm_gem_open_ioctl(struct drm_device *dev, void *data,
 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
 
-extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
-extern void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev);
-extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);
+extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
+extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
+extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
 
-static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
-						   unsigned int token)
+static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
+							 unsigned int token)
 {
 	struct drm_map_list *_entry;
 	list_for_each_entry(_entry, &dev->maplist, head)
@@ -1410,7 +1423,7 @@ static __inline__ int drm_device_is_pcie(struct drm_device *dev)
 	return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
 }
 
-static __inline__ void drm_core_dropmap(struct drm_map *map)
+static __inline__ void drm_core_dropmap(struct drm_local_map *map)
 {
 }
 
-- 
cgit v1.2.3


From 41c2e75e60200a860a74b7c84a6375c105e7437f Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 2 Feb 2009 16:55:47 +1100
Subject: drm: Make drm_local_map use a resource_size_t offset

This changes drm_local_map to use a resource_size for its "offset"
member instead of an unsigned long, thus allowing 32-bit machines
with a >32-bit physical address space to be able to store there
their register or framebuffer addresses when those are above 4G,
such as when using a PCI video card on a recent AMCC 440 SoC.

This patch isn't as "trivial" as it sounds: A few functions needed
to have some unsigned long/int changed to resource_size_t and a few
printk's had to be adjusted.

But also, because userspace isn't capable of passing such offsets,
I had to modify drm_find_matching_map() to ignore the offset passed
in for maps of type _DRM_FRAMEBUFFER or _DRM_REGISTERS.

If we ever support multiple _DRM_FRAMEBUFFER or _DRM_REGISTERS maps
for a given device, we might have to change that trick, but I don't
think that happens on any current driver.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
---
 drivers/gpu/drm/drm_bufs.c         | 37 ++++++++++++++++++++++++++++---------
 drivers/gpu/drm/drm_proc.c         |  4 ++--
 drivers/gpu/drm/drm_vm.c           | 22 ++++++++++++----------
 drivers/gpu/drm/mga/mga_dma.c      | 17 +++++++++--------
 drivers/gpu/drm/mga/mga_drv.h      |  4 ++--
 drivers/gpu/drm/r128/r128_cce.c    |  7 ++++---
 drivers/gpu/drm/radeon/radeon_cp.c |  9 +++++----
 include/drm/drmP.h                 | 12 ++++++------
 8 files changed, 68 insertions(+), 44 deletions(-)

(limited to 'include')

diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
index 1b8dbd5961bc..cddea1a2472c 100644
--- a/drivers/gpu/drm/drm_bufs.c
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -54,11 +54,29 @@ static struct drm_map_list *drm_find_matching_map(struct drm_device *dev,
 {
 	struct drm_map_list *entry;
 	list_for_each_entry(entry, &dev->maplist, head) {
-		if (entry->map && (entry->master == dev->primary->master) && (map->type == entry->map->type) &&
-		    ((entry->map->offset == map->offset) ||
-		     ((map->type == _DRM_SHM) && (map->flags&_DRM_CONTAINS_LOCK)))) {
+		/*
+		 * Because the kernel-userspace ABI is fixed at a 32-bit offset
+		 * while PCI resources may live above that, we ignore the map
+		 * offset for maps of type _DRM_FRAMEBUFFER or _DRM_REGISTERS.
+		 * It is assumed that each driver will have only one resource of
+		 * each type.
+		 */
+		if (!entry->map ||
+		    map->type != entry->map->type ||
+		    entry->master != dev->primary->master)
+			continue;
+		switch (map->type) {
+		case _DRM_SHM:
+			if (map->flags != _DRM_CONTAINS_LOCK)
+				break;
+		case _DRM_REGISTERS:
+		case _DRM_FRAME_BUFFER:
 			return entry;
+		default: /* Make gcc happy */
+			;
 		}
+		if (entry->map->offset == map->offset)
+			return entry;
 	}
 
 	return NULL;
@@ -96,7 +114,7 @@ static int drm_map_handle(struct drm_device *dev, struct drm_hash_item *hash,
  * type.  Adds the map to the map list drm_device::maplist. Adds MTRR's where
  * applicable and if supported by the kernel.
  */
-static int drm_addmap_core(struct drm_device * dev, unsigned int offset,
+static int drm_addmap_core(struct drm_device * dev, resource_size_t offset,
 			   unsigned int size, enum drm_map_type type,
 			   enum drm_map_flags flags,
 			   struct drm_map_list ** maplist)
@@ -124,9 +142,9 @@ static int drm_addmap_core(struct drm_device * dev, unsigned int offset,
 		drm_free(map, sizeof(*map), DRM_MEM_MAPS);
 		return -EINVAL;
 	}
-	DRM_DEBUG("offset = 0x%08lx, size = 0x%08lx, type = %d\n",
-		  map->offset, map->size, map->type);
-	if ((map->offset & (~PAGE_MASK)) || (map->size & (~PAGE_MASK))) {
+	DRM_DEBUG("offset = 0x%08llx, size = 0x%08lx, type = %d\n",
+		  (unsigned long long)map->offset, map->size, map->type);
+	if ((map->offset & (~(resource_size_t)PAGE_MASK)) || (map->size & (~PAGE_MASK))) {
 		drm_free(map, sizeof(*map), DRM_MEM_MAPS);
 		return -EINVAL;
 	}
@@ -254,7 +272,8 @@ static int drm_addmap_core(struct drm_device * dev, unsigned int offset,
 			drm_free(map, sizeof(*map), DRM_MEM_MAPS);
 			return -EPERM;
 		}
-		DRM_DEBUG("AGP offset = 0x%08lx, size = 0x%08lx\n", map->offset, map->size);
+		DRM_DEBUG("AGP offset = 0x%08llx, size = 0x%08lx\n",
+			  (unsigned long long)map->offset, map->size);
 
 		break;
 	case _DRM_GEM:
@@ -322,7 +341,7 @@ static int drm_addmap_core(struct drm_device * dev, unsigned int offset,
 	return 0;
 	}
 
-int drm_addmap(struct drm_device * dev, unsigned int offset,
+int drm_addmap(struct drm_device * dev, resource_size_t offset,
 	       unsigned int size, enum drm_map_type type,
 	       enum drm_map_flags flags, struct drm_local_map ** map_ptr)
 {
diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c
index c1959badf11f..2e3f907a203a 100644
--- a/drivers/gpu/drm/drm_proc.c
+++ b/drivers/gpu/drm/drm_proc.c
@@ -276,9 +276,9 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
 			type = "??";
 		else
 			type = types[map->type];
-		DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s  0x%02x 0x%08lx ",
+		DRM_PROC_PRINT("%4d 0x%08llx 0x%08lx %4.4s  0x%02x 0x%08lx ",
 			       i,
-			       map->offset,
+			       (unsigned long long)map->offset,
 			       map->size, type, map->flags,
 			       (unsigned long) r_list->user_token);
 		if (map->mtrr < 0) {
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index 0d8bbd72ec55..22f76567ac7d 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -115,9 +115,9 @@ static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 		 * Using vm_pgoff as a selector forces us to use this unusual
 		 * addressing scheme.
 		 */
-		unsigned long offset = (unsigned long)vmf->virtual_address -
-								vma->vm_start;
-		unsigned long baddr = map->offset + offset;
+		resource_size_t offset = (unsigned long)vmf->virtual_address -
+			vma->vm_start;
+		resource_size_t baddr = map->offset + offset;
 		struct drm_agp_mem *agpmem;
 		struct page *page;
 
@@ -149,8 +149,10 @@ static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 		vmf->page = page;
 
 		DRM_DEBUG
-		    ("baddr = 0x%lx page = 0x%p, offset = 0x%lx, count=%d\n",
-		     baddr, __va(agpmem->memory->memory[offset]), offset,
+		    ("baddr = 0x%llx page = 0x%p, offset = 0x%llx, count=%d\n",
+		     (unsigned long long)baddr,
+		     __va(agpmem->memory->memory[offset]),
+		     (unsigned long long)offset,
 		     page_count(page));
 		return 0;
 	}
@@ -512,14 +514,14 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
 	return 0;
 }
 
-unsigned long drm_core_get_map_ofs(struct drm_local_map * map)
+resource_size_t drm_core_get_map_ofs(struct drm_local_map * map)
 {
 	return map->offset;
 }
 
 EXPORT_SYMBOL(drm_core_get_map_ofs);
 
-unsigned long drm_core_get_reg_ofs(struct drm_device *dev)
+resource_size_t drm_core_get_reg_ofs(struct drm_device *dev)
 {
 #ifdef __alpha__
 	return dev->hose->dense_mem_base - dev->hose->mem_space->start;
@@ -548,7 +550,7 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 	struct drm_file *priv = filp->private_data;
 	struct drm_device *dev = priv->minor->dev;
 	struct drm_local_map *map = NULL;
-	unsigned long offset = 0;
+	resource_size_t offset = 0;
 	struct drm_hash_item *hash;
 
 	DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
@@ -623,9 +625,9 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 				       vma->vm_page_prot))
 			return -EAGAIN;
 		DRM_DEBUG("   Type = %d; start = 0x%lx, end = 0x%lx,"
-			  " offset = 0x%lx\n",
+			  " offset = 0x%llx\n",
 			  map->type,
-			  vma->vm_start, vma->vm_end, map->offset + offset);
+			  vma->vm_start, vma->vm_end, (unsigned long long)(map->offset + offset));
 		vma->vm_ops = &drm_vm_ops;
 		break;
 	case _DRM_CONSISTENT:
diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c
index b49c5ff29585..7a6bf9ffc5a3 100644
--- a/drivers/gpu/drm/mga/mga_dma.c
+++ b/drivers/gpu/drm/mga/mga_dma.c
@@ -148,8 +148,8 @@ void mga_do_dma_flush(drm_mga_private_t * dev_priv)
 		primary->space = head - tail;
 	}
 
-	DRM_DEBUG("   head = 0x%06lx\n", head - dev_priv->primary->offset);
-	DRM_DEBUG("   tail = 0x%06lx\n", tail - dev_priv->primary->offset);
+	DRM_DEBUG("   head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset));
+	DRM_DEBUG("   tail = 0x%06lx\n", (unsigned long)(tail - dev_priv->primary->offset));
 	DRM_DEBUG("  space = 0x%06x\n", primary->space);
 
 	mga_flush_write_combine();
@@ -187,7 +187,7 @@ void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv)
 		primary->space = head - dev_priv->primary->offset;
 	}
 
-	DRM_DEBUG("   head = 0x%06lx\n", head - dev_priv->primary->offset);
+	DRM_DEBUG("   head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset));
 	DRM_DEBUG("   tail = 0x%06x\n", primary->tail);
 	DRM_DEBUG("   wrap = %d\n", primary->last_wrap);
 	DRM_DEBUG("  space = 0x%06x\n", primary->space);
@@ -239,7 +239,7 @@ static void mga_freelist_print(struct drm_device * dev)
 	for (entry = dev_priv->head->next; entry; entry = entry->next) {
 		DRM_INFO("   %p   idx=%2d  age=0x%x 0x%06lx\n",
 			 entry, entry->buf->idx, entry->age.head,
-			 entry->age.head - dev_priv->primary->offset);
+			 (unsigned long)(entry->age.head - dev_priv->primary->offset));
 	}
 	DRM_INFO("\n");
 }
@@ -340,10 +340,10 @@ static struct drm_buf *mga_freelist_get(struct drm_device * dev)
 
 	DRM_DEBUG("   tail=0x%06lx %d\n",
 		  tail->age.head ?
-		  tail->age.head - dev_priv->primary->offset : 0,
+		  (unsigned long)(tail->age.head - dev_priv->primary->offset) : 0,
 		  tail->age.wrap);
 	DRM_DEBUG("   head=0x%06lx %d\n",
-		  head - dev_priv->primary->offset, wrap);
+		  (unsigned long)(head - dev_priv->primary->offset), wrap);
 
 	if (TEST_AGE(&tail->age, head, wrap)) {
 		prev = dev_priv->tail->prev;
@@ -366,8 +366,9 @@ int mga_freelist_put(struct drm_device * dev, struct drm_buf * buf)
 	drm_mga_freelist_t *head, *entry, *prev;
 
 	DRM_DEBUG("age=0x%06lx wrap=%d\n",
-		  buf_priv->list_entry->age.head -
-		  dev_priv->primary->offset, buf_priv->list_entry->age.wrap);
+		  (unsigned long)(buf_priv->list_entry->age.head -
+				  dev_priv->primary->offset),
+		  buf_priv->list_entry->age.wrap);
 
 	entry = buf_priv->list_entry;
 	head = dev_priv->head;
diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
index 6bf4de990325..3d264f288237 100644
--- a/drivers/gpu/drm/mga/mga_drv.h
+++ b/drivers/gpu/drm/mga/mga_drv.h
@@ -317,8 +317,8 @@ do {									\
 		DRM_INFO( "\n" );					\
 		DRM_INFO( "   tail=0x%06x head=0x%06lx\n",		\
 			  dev_priv->prim.tail,				\
-			  MGA_READ( MGA_PRIMADDRESS ) -			\
-			  dev_priv->primary->offset );			\
+			  (unsigned long)(MGA_READ(MGA_PRIMADDRESS) -	\
+					  dev_priv->primary->offset));	\
 	}								\
 	if ( !test_bit( 0, &dev_priv->prim.wrapped ) ) {		\
 		if ( dev_priv->prim.space <				\
diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
index c31afbde62e7..32de4cedc363 100644
--- a/drivers/gpu/drm/r128/r128_cce.c
+++ b/drivers/gpu/drm/r128/r128_cce.c
@@ -525,11 +525,12 @@ static int r128_do_init_cce(struct drm_device * dev, drm_r128_init_t * init)
 	} else
 #endif
 	{
-		dev_priv->cce_ring->handle = (void *)dev_priv->cce_ring->offset;
+		dev_priv->cce_ring->handle =
+			(void *)(unsigned long)dev_priv->cce_ring->offset;
 		dev_priv->ring_rptr->handle =
-		    (void *)dev_priv->ring_rptr->offset;
+			(void *)(unsigned long)dev_priv->ring_rptr->offset;
 		dev->agp_buffer_map->handle =
-		    (void *)dev->agp_buffer_map->offset;
+			(void *)(unsigned long)dev->agp_buffer_map->offset;
 	}
 
 #if __OS_HAS_AGP
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c
index 92965dbb3c14..34c0b3f0c29e 100644
--- a/drivers/gpu/drm/radeon/radeon_cp.c
+++ b/drivers/gpu/drm/radeon/radeon_cp.c
@@ -1062,11 +1062,12 @@ static int radeon_do_init_cp(struct drm_device *dev, drm_radeon_init_t *init,
 	} else
 #endif
 	{
-		dev_priv->cp_ring->handle = (void *)dev_priv->cp_ring->offset;
+		dev_priv->cp_ring->handle =
+			(void *)(unsigned long)dev_priv->cp_ring->offset;
 		dev_priv->ring_rptr->handle =
-		    (void *)dev_priv->ring_rptr->offset;
+			(void *)(unsigned long)dev_priv->ring_rptr->offset;
 		dev->agp_buffer_map->handle =
-		    (void *)dev->agp_buffer_map->offset;
+			(void *)(unsigned long)dev->agp_buffer_map->offset;
 
 		DRM_DEBUG("dev_priv->cp_ring->handle %p\n",
 			  dev_priv->cp_ring->handle);
@@ -1177,7 +1178,7 @@ static int radeon_do_init_cp(struct drm_device *dev, drm_radeon_init_t *init,
 		/* if we have an offset set from userspace */
 		if (dev_priv->pcigart_offset_set) {
 			dev_priv->gart_info.bus_addr =
-			    dev_priv->pcigart_offset + dev_priv->fb_location;
+				(resource_size_t)dev_priv->pcigart_offset + dev_priv->fb_location;
 			dev_priv->gart_info.mapping.offset =
 			    dev_priv->pcigart_offset + dev_priv->fb_aper_offset;
 			dev_priv->gart_info.mapping.size =
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 03a7c11cb24d..c91fbb68b460 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -526,7 +526,7 @@ struct drm_mm {
  * Kernel side of a mapping
  */
 struct drm_local_map {
-	unsigned long offset;	 /**< Requested physical address (0 for SAREA)*/
+	resource_size_t offset;	 /**< Requested physical address (0 for SAREA)*/
 	unsigned long size;	 /**< Requested physical size (bytes) */
 	enum drm_map_type type;	 /**< Type of memory to map */
 	enum drm_map_flags flags;	 /**< Flags */
@@ -760,8 +760,8 @@ struct drm_driver {
 					struct drm_file *file_priv);
 	void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
 					    struct drm_file *file_priv);
-	unsigned long (*get_map_ofs) (struct drm_local_map * map);
-	unsigned long (*get_reg_ofs) (struct drm_device *dev);
+	resource_size_t (*get_map_ofs) (struct drm_local_map * map);
+	resource_size_t (*get_reg_ofs) (struct drm_device *dev);
 	void (*set_version) (struct drm_device *dev,
 			     struct drm_set_version *sv);
 
@@ -1062,8 +1062,8 @@ extern int drm_release(struct inode *inode, struct file *filp);
 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
 extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
 extern void drm_vm_open_locked(struct vm_area_struct *vma);
-extern unsigned long drm_core_get_map_ofs(struct drm_local_map * map);
-extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
+extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
+extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
 
 				/* Memory management support (drm_memory.h) */
@@ -1166,7 +1166,7 @@ extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv
 				/* Buffer management support (drm_bufs.h) */
 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
-extern int drm_addmap(struct drm_device *dev, unsigned int offset,
+extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
 		      unsigned int size, enum drm_map_type type,
 		      enum drm_map_flags flags, struct drm_local_map **map_ptr);
 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
-- 
cgit v1.2.3


From 112b715e8e2f9ef7b96930888bb099ce10b4c3cc Mon Sep 17 00:00:00 2001
From: Kristian Høgsberg <krh@bitplanet.net>
Date: Sun, 4 Jan 2009 16:55:33 -0500
Subject: drm: claim PCI device when running in modesetting mode.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Under kernel modesetting, we manage the device at all times, regardless
of VT switching and X servers, so the only decent thing to do is to
claim the PCI device.  In that case, we call the suspend/resume hooks
directly from the pci driver hooks instead of the current class device detour.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
---
 drivers/gpu/drm/drm_drv.c       | 71 ++++++--------------------------
 drivers/gpu/drm/drm_stub.c      | 89 ++++++++++++++++++++++++++++++-----------
 drivers/gpu/drm/drm_sysfs.c     |  8 +++-
 drivers/gpu/drm/i915/i915_drv.c | 38 ++++++++++++++++++
 include/drm/drmP.h              |  2 +-
 5 files changed, 123 insertions(+), 85 deletions(-)

(limited to 'include')

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 6394c2b67658..1441655388ab 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -252,15 +252,19 @@ int drm_lastclose(struct drm_device * dev)
 int drm_init(struct drm_driver *driver)
 {
 	struct pci_dev *pdev = NULL;
-	struct pci_device_id *pid;
+	const struct pci_device_id *pid;
 	int i;
 
 	DRM_DEBUG("\n");
 
 	INIT_LIST_HEAD(&driver->device_list);
 
+	if (driver->driver_features & DRIVER_MODESET)
+		return pci_register_driver(&driver->pci_driver);
+
+	/* If not using KMS, fall back to stealth mode manual scanning. */
 	for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {
-		pid = (struct pci_device_id *)&driver->pci_driver.id_table[i];
+		pid = &driver->pci_driver.id_table[i];
 
 		/* Loop around setting up a DRM device for each PCI device
 		 * matching our ID and device class.  If we had the internal
@@ -285,68 +289,17 @@ int drm_init(struct drm_driver *driver)
 
 EXPORT_SYMBOL(drm_init);
 
-/**
- * Called via cleanup_module() at module unload time.
- *
- * Cleans up all DRM device, calling drm_lastclose().
- *
- * \sa drm_init
- */
-static void drm_cleanup(struct drm_device * dev)
-{
-	struct drm_map_list *r_list, *list_temp;
-	DRM_DEBUG("\n");
-
-	if (!dev) {
-		DRM_ERROR("cleanup called no dev\n");
-		return;
-	}
-
-	drm_vblank_cleanup(dev);
-
-	drm_lastclose(dev);
-
-	if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
-	    dev->agp && dev->agp->agp_mtrr >= 0) {
-		int retval;
-		retval = mtrr_del(dev->agp->agp_mtrr,
-				  dev->agp->agp_info.aper_base,
-				  dev->agp->agp_info.aper_size * 1024 * 1024);
-		DRM_DEBUG("mtrr_del=%d\n", retval);
-	}
-
-	if (dev->driver->unload)
-		dev->driver->unload(dev);
-
-	if (drm_core_has_AGP(dev) && dev->agp) {
-		drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
-		dev->agp = NULL;
-	}
-
-	drm_ht_remove(&dev->map_hash);
-	drm_ctxbitmap_cleanup(dev);
-
-	list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
-		drm_rmmap(dev, r_list->map);
-
-	if (drm_core_check_feature(dev, DRIVER_MODESET))
-		drm_put_minor(&dev->control);
-
-	if (dev->driver->driver_features & DRIVER_GEM)
-		drm_gem_destroy(dev);
-
-	drm_put_minor(&dev->primary);
-	if (drm_put_dev(dev))
-		DRM_ERROR("Cannot unload module\n");
-}
-
 void drm_exit(struct drm_driver *driver)
 {
 	struct drm_device *dev, *tmp;
 	DRM_DEBUG("\n");
 
-	list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item)
-		drm_cleanup(dev);
+	if (driver->driver_features & DRIVER_MODESET) {
+		pci_unregister_driver(&driver->pci_driver);
+	} else {
+		list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item)
+			drm_put_dev(dev);
+	}
 
 	DRM_INFO("Module unloaded\n");
 }
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 7c8b15b22bf2..f51c685011ed 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -372,6 +372,7 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
 	}
 
 	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+		pci_set_drvdata(pdev, dev);
 		ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
 		if (ret)
 			goto err_g2;
@@ -409,29 +410,7 @@ err_g1:
 	drm_free(dev, sizeof(*dev), DRM_MEM_STUB);
 	return ret;
 }
-
-/**
- * Put a device minor number.
- *
- * \param dev device data structure
- * \return always zero
- *
- * Cleans up the proc resources. If it is the last minor then release the foreign
- * "drm" data, otherwise unregisters the "drm" data, frees the dev list and
- * unregisters the character device.
- */
-int drm_put_dev(struct drm_device * dev)
-{
-	DRM_DEBUG("release primary %s\n", dev->driver->pci_driver.name);
-
-	if (dev->devname) {
-		drm_free(dev->devname, strlen(dev->devname) + 1,
-			 DRM_MEM_DRIVER);
-		dev->devname = NULL;
-	}
-	drm_free(dev, sizeof(*dev), DRM_MEM_STUB);
-	return 0;
-}
+EXPORT_SYMBOL(drm_get_dev);
 
 /**
  * Put a secondary minor number.
@@ -459,3 +438,67 @@ int drm_put_minor(struct drm_minor **minor_p)
 	*minor_p = NULL;
 	return 0;
 }
+
+/**
+ * Called via drm_exit() at module unload time or when pci device is
+ * unplugged.
+ *
+ * Cleans up all DRM device, calling drm_lastclose().
+ *
+ * \sa drm_init
+ */
+void drm_put_dev(struct drm_device *dev)
+{
+	struct drm_driver *driver = dev->driver;
+	struct drm_map_list *r_list, *list_temp;
+
+	DRM_DEBUG("\n");
+
+	if (!dev) {
+		DRM_ERROR("cleanup called no dev\n");
+		return;
+	}
+
+	drm_vblank_cleanup(dev);
+
+	drm_lastclose(dev);
+
+	if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
+	    dev->agp && dev->agp->agp_mtrr >= 0) {
+		int retval;
+		retval = mtrr_del(dev->agp->agp_mtrr,
+				  dev->agp->agp_info.aper_base,
+				  dev->agp->agp_info.aper_size * 1024 * 1024);
+		DRM_DEBUG("mtrr_del=%d\n", retval);
+	}
+
+	if (dev->driver->unload)
+		dev->driver->unload(dev);
+
+	if (drm_core_has_AGP(dev) && dev->agp) {
+		drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
+		dev->agp = NULL;
+	}
+
+	drm_ht_remove(&dev->map_hash);
+	drm_ctxbitmap_cleanup(dev);
+
+	list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
+		drm_rmmap(dev, r_list->map);
+
+	if (drm_core_check_feature(dev, DRIVER_MODESET))
+		drm_put_minor(&dev->control);
+
+	if (driver->driver_features & DRIVER_GEM)
+		drm_gem_destroy(dev);
+
+	drm_put_minor(&dev->primary);
+
+	if (dev->devname) {
+		drm_free(dev->devname, strlen(dev->devname) + 1,
+			 DRM_MEM_DRIVER);
+		dev->devname = NULL;
+	}
+	drm_free(dev, sizeof(*dev), DRM_MEM_STUB);
+}
+EXPORT_SYMBOL(drm_put_dev);
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 5aa6780652aa..480546b542fe 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -35,7 +35,9 @@ static int drm_sysfs_suspend(struct device *dev, pm_message_t state)
 	struct drm_minor *drm_minor = to_drm_minor(dev);
 	struct drm_device *drm_dev = drm_minor->dev;
 
-	if (drm_minor->type == DRM_MINOR_LEGACY && drm_dev->driver->suspend)
+	if (drm_minor->type == DRM_MINOR_LEGACY &&
+	    !drm_core_check_feature(drm_dev, DRIVER_MODESET) &&
+	    drm_dev->driver->suspend)
 		return drm_dev->driver->suspend(drm_dev, state);
 
 	return 0;
@@ -53,7 +55,9 @@ static int drm_sysfs_resume(struct device *dev)
 	struct drm_minor *drm_minor = to_drm_minor(dev);
 	struct drm_device *drm_dev = drm_minor->dev;
 
-	if (drm_minor->type == DRM_MINOR_LEGACY && drm_dev->driver->resume)
+	if (drm_minor->type == DRM_MINOR_LEGACY &&
+	    !drm_core_check_feature(drm_dev, DRIVER_MODESET) &&
+	    drm_dev->driver->resume)
 		return drm_dev->driver->resume(drm_dev);
 
 	return 0;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index b293ef0bae71..d10ec9e5033c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -42,6 +42,8 @@ module_param_named(modeset, i915_modeset, int, 0400);
 unsigned int i915_fbpercrtc = 0;
 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
 
+static struct drm_driver driver;
+
 static struct pci_device_id pciidlist[] = {
 	i915_PCI_IDS
 };
@@ -117,6 +119,36 @@ static int i915_resume(struct drm_device *dev)
 	return ret;
 }
 
+static int __devinit
+i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	return drm_get_dev(pdev, ent, &driver);
+}
+
+static void
+i915_pci_remove(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+
+	drm_put_dev(dev);
+}
+
+static int
+i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+
+	return i915_suspend(dev, state);
+}
+
+static int
+i915_pci_resume(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+
+	return i915_resume(dev);
+}
+
 static struct vm_operations_struct i915_gem_vm_ops = {
 	.fault = i915_gem_fault,
 	.open = drm_gem_vm_open,
@@ -172,6 +204,12 @@ static struct drm_driver driver = {
 	.pci_driver = {
 		 .name = DRIVER_NAME,
 		 .id_table = pciidlist,
+		 .probe = i915_pci_probe,
+		 .remove = i915_pci_remove,
+#ifdef CONFIG_PM
+		 .resume = i915_pci_resume,
+		 .suspend = i915_pci_suspend,
+#endif
 	},
 
 	.name = DRIVER_NAME,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index c91fbb68b460..533d35baa085 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1265,7 +1265,7 @@ extern struct drm_master *drm_master_get(struct drm_master *master);
 extern void drm_master_put(struct drm_master **master);
 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
 		       struct drm_driver *driver);
-extern int drm_put_dev(struct drm_device *dev);
+extern void drm_put_dev(struct drm_device *dev);
 extern int drm_put_minor(struct drm_minor **minor);
 extern unsigned int drm_debug;
 
-- 
cgit v1.2.3


From 8e1004580e0c862cb6bbe2ff8e496f846c54052f Mon Sep 17 00:00:00 2001
From: Kristian Høgsberg <krh@redhat.com>
Date: Mon, 5 Jan 2009 16:10:05 -0500
Subject: drm: Drop unused and broken dri_library_name sysfs attribute.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The kernel shouldn't be in the business of telling user space which
driver to load.  The kernel defers mapping PCI IDs to module names
to user space and we should do the same for DRI drivers.

And in fact, that's how it does work today.  Nothing uses the
dri_library_name attribute, and the attribute is in fact broken.
For intel devices, it falls back to the default behaviour of returning
the kernel module name as the DRI driver name, which doesn't work for
i965 devices.  Nobody has ever hit this problem or filed a bug about this.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
---
 drivers/gpu/drm/drm_sysfs.c         | 29 -----------------------------
 drivers/gpu/drm/radeon/radeon_drv.c | 12 ------------
 drivers/gpu/drm/via/via_drv.c       |  6 ------
 include/drm/drmP.h                  |  1 -
 4 files changed, 48 deletions(-)

(limited to 'include')

diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 480546b542fe..f7510a8f0eb9 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -122,20 +122,6 @@ void drm_sysfs_destroy(void)
 	class_destroy(drm_class);
 }
 
-static ssize_t show_dri(struct device *device, struct device_attribute *attr,
-			char *buf)
-{
-	struct drm_minor *drm_minor = to_drm_minor(device);
-	struct drm_device *drm_dev = drm_minor->dev;
-	if (drm_dev->driver->dri_library_name)
-		return drm_dev->driver->dri_library_name(drm_dev, buf);
-	return snprintf(buf, PAGE_SIZE, "%s\n", drm_dev->driver->pci_driver.name);
-}
-
-static struct device_attribute device_attrs[] = {
-	__ATTR(dri_library_name, S_IRUGO, show_dri, NULL),
-};
-
 /**
  * drm_sysfs_device_release - do nothing
  * @dev: Linux device
@@ -478,7 +464,6 @@ void drm_sysfs_hotplug_event(struct drm_device *dev)
 int drm_sysfs_device_add(struct drm_minor *minor)
 {
 	int err;
-	int i, j;
 	char *minor_str;
 
 	minor->kdev.parent = &minor->dev->pdev->dev;
@@ -500,18 +485,8 @@ int drm_sysfs_device_add(struct drm_minor *minor)
 		goto err_out;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(device_attrs); i++) {
-		err = device_create_file(&minor->kdev, &device_attrs[i]);
-		if (err)
-			goto err_out_files;
-	}
-
 	return 0;
 
-err_out_files:
-	if (i > 0)
-		for (j = 0; j < i; j++)
-			device_remove_file(&minor->kdev, &device_attrs[j]);
 	device_unregister(&minor->kdev);
 err_out:
 
@@ -527,9 +502,5 @@ err_out:
  */
 void drm_sysfs_device_remove(struct drm_minor *minor)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(device_attrs); i++)
-		device_remove_file(&minor->kdev, &device_attrs[i]);
 	device_unregister(&minor->kdev);
 }
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index fef207881f45..1e3b2557a51a 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -41,17 +41,6 @@ int radeon_no_wb;
 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
 module_param_named(no_wb, radeon_no_wb, int, 0444);
 
-static int dri_library_name(struct drm_device *dev, char *buf)
-{
-	drm_radeon_private_t *dev_priv = dev->dev_private;
-	int family = dev_priv->flags & RADEON_FAMILY_MASK;
-
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-		        (family < CHIP_R200) ? "radeon" :
-		        ((family < CHIP_R300) ? "r200" :
-		        "r300"));
-}
-
 static int radeon_suspend(struct drm_device *dev, pm_message_t state)
 {
 	drm_radeon_private_t *dev_priv = dev->dev_private;
@@ -95,7 +84,6 @@ static struct drm_driver driver = {
 	.get_vblank_counter = radeon_get_vblank_counter,
 	.enable_vblank = radeon_enable_vblank,
 	.disable_vblank = radeon_disable_vblank,
-	.dri_library_name = dri_library_name,
 	.master_create = radeon_master_create,
 	.master_destroy = radeon_master_destroy,
 	.irq_preinstall = radeon_driver_irq_preinstall,
diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c
index 0993b441fc42..bc2f51843005 100644
--- a/drivers/gpu/drm/via/via_drv.c
+++ b/drivers/gpu/drm/via/via_drv.c
@@ -28,11 +28,6 @@
 
 #include "drm_pciids.h"
 
-static int dri_library_name(struct drm_device *dev, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "unichrome");
-}
-
 static struct pci_device_id pciidlist[] = {
 	viadrv_PCI_IDS
 };
@@ -52,7 +47,6 @@ static struct drm_driver driver = {
 	.irq_uninstall = via_driver_irq_uninstall,
 	.irq_handler = via_driver_irq_handler,
 	.dma_quiescent = via_driver_dma_quiescent,
-	.dri_library_name = dri_library_name,
 	.reclaim_buffers = drm_core_reclaim_buffers,
 	.reclaim_buffers_locked = NULL,
 	.reclaim_buffers_idlelocked = via_reclaim_buffers_locked,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 533d35baa085..458e38e1d538 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -688,7 +688,6 @@ struct drm_driver {
 	int (*kernel_context_switch) (struct drm_device *dev, int old,
 				      int new);
 	void (*kernel_context_switch_unlock) (struct drm_device *dev);
-	int (*dri_library_name) (struct drm_device *dev, char *buf);
 
 	/**
 	 * get_vblank_counter - get raw hardware vblank counter
-- 
cgit v1.2.3


From 955b12def42e83287c1bdb1411d99451753c1391 Mon Sep 17 00:00:00 2001
From: Ben Gamari <bgamari@gmail.com>
Date: Tue, 17 Feb 2009 20:08:49 -0500
Subject: drm: Convert proc files to seq_file and introduce debugfs

The old mechanism to formatting proc files is extremely ugly. The
seq_file API was designed specifically for cases like this and greatly
simplifies the process.

Also, most of the files in /proc really don't belong there. This patch
introduces the infrastructure for putting these into debugfs and exposes
all of the proc files in debugfs as well.

This contains the i915 hooks rewrite as well, to make bisectability better.

Signed-off-by: Ben Gamari <bgamari@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/Makefile                |   3 +-
 drivers/gpu/drm/drm_debugfs.c           | 235 +++++++++++
 drivers/gpu/drm/drm_drv.c               |  12 +-
 drivers/gpu/drm/drm_info.c              | 328 +++++++++++++++
 drivers/gpu/drm/drm_proc.c              | 720 +++++---------------------------
 drivers/gpu/drm/drm_stub.c              |  15 +-
 drivers/gpu/drm/i915/Makefile           |   2 +-
 drivers/gpu/drm/i915/i915_drv.c         |   6 +-
 drivers/gpu/drm/i915/i915_drv.h         |   6 +-
 drivers/gpu/drm/i915/i915_gem_debugfs.c | 230 ++++++++++
 drivers/gpu/drm/i915/i915_gem_proc.c    | 334 ---------------
 include/drm/drmP.h                      |  77 +++-
 12 files changed, 1014 insertions(+), 954 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_debugfs.c
 create mode 100644 drivers/gpu/drm/drm_info.c
 create mode 100644 drivers/gpu/drm/i915/i915_gem_debugfs.c
 delete mode 100644 drivers/gpu/drm/i915/i915_gem_proc.c

(limited to 'include')

diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 30022c4a5c12..4ec5061fa584 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -10,7 +10,8 @@ drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \
 		drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
 		drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
-		drm_crtc.o drm_crtc_helper.o drm_modes.o drm_edid.o
+		drm_crtc.o drm_crtc_helper.o drm_modes.o drm_edid.o \
+		drm_info.o drm_debugfs.o
 
 drm-$(CONFIG_COMPAT) += drm_ioc32.o
 
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
new file mode 100644
index 000000000000..c77c6c6d9d2c
--- /dev/null
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -0,0 +1,235 @@
+/**
+ * \file drm_debugfs.c
+ * debugfs support for DRM
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:08:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ *
+ * 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
+ * VA LINUX SYSTEMS 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 <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+#if defined(CONFIG_DEBUG_FS)
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+static struct drm_info_list drm_debugfs_list[] = {
+	{"name", drm_name_info, 0},
+	{"vm", drm_vm_info, 0},
+	{"clients", drm_clients_info, 0},
+	{"queues", drm_queues_info, 0},
+	{"bufs", drm_bufs_info, 0},
+	{"gem_names", drm_gem_name_info, DRIVER_GEM},
+	{"gem_objects", drm_gem_object_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+	{"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_DEBUGFS_ENTRIES ARRAY_SIZE(drm_debugfs_list)
+
+
+static int drm_debugfs_open(struct inode *inode, struct file *file)
+{
+	struct drm_info_node *node = inode->i_private;
+
+	return single_open(file, node->info_ent->show, node);
+}
+
+
+static const struct file_operations drm_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_debugfs_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+
+/**
+ * Initialize a given set of debugfs files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI debugfs dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of debugfs files represented by an array of
+ * gdm_debugfs_lists in the given root directory.
+ */
+int drm_debugfs_create_files(struct drm_info_list *files, int count,
+			     struct dentry *root, struct drm_minor *minor)
+{
+	struct drm_device *dev = minor->dev;
+	struct dentry *ent;
+	struct drm_info_node *tmp;
+	char name[64];
+	int i, ret;
+
+	for (i = 0; i < count; i++) {
+		u32 features = files[i].driver_features;
+
+		if (features != 0 &&
+		    (dev->driver->driver_features & features) != features)
+			continue;
+
+		tmp = drm_alloc(sizeof(struct drm_info_node),
+				_DRM_DRIVER);
+		ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
+					  root, tmp, &drm_debugfs_fops);
+		if (!ent) {
+			DRM_ERROR("Cannot create /debugfs/dri/%s/%s\n",
+				  name, files[i].name);
+			drm_free(tmp, sizeof(struct drm_info_node),
+				 _DRM_DRIVER);
+			ret = -1;
+			goto fail;
+		}
+
+		tmp->minor = minor;
+		tmp->dent = ent;
+		tmp->info_ent = &files[i];
+		list_add(&(tmp->list), &(minor->debugfs_nodes.list));
+	}
+	return 0;
+
+fail:
+	drm_debugfs_remove_files(files, count, minor);
+	return ret;
+}
+EXPORT_SYMBOL(drm_debugfs_create_files);
+
+/**
+ * Initialize the DRI debugfs filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI debugfs dir entry.
+ *
+ * Create the DRI debugfs root entry "/debugfs/dri", the device debugfs root entry
+ * "/debugfs/dri/%minor%/", and each entry in debugfs_list as
+ * "/debugfs/dri/%minor%/%name%".
+ */
+int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+		     struct dentry *root)
+{
+	struct drm_device *dev = minor->dev;
+	char name[64];
+	int ret;
+
+	INIT_LIST_HEAD(&minor->debugfs_nodes.list);
+	sprintf(name, "%d", minor_id);
+	minor->debugfs_root = debugfs_create_dir(name, root);
+	if (!minor->debugfs_root) {
+		DRM_ERROR("Cannot create /debugfs/dri/%s\n", name);
+		return -1;
+	}
+
+	ret = drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
+				       minor->debugfs_root, minor);
+	if (ret) {
+		debugfs_remove(minor->debugfs_root);
+		minor->debugfs_root = NULL;
+		DRM_ERROR("Failed to create core drm debugfs files\n");
+		return ret;
+	}
+
+	if (dev->driver->debugfs_init) {
+		ret = dev->driver->debugfs_init(minor);
+		if (ret) {
+			DRM_ERROR("DRM: Driver failed to initialize "
+				  "/debugfs/dri.\n");
+			return ret;
+		}
+	}
+	return 0;
+}
+
+
+/**
+ * Remove a list of debugfs files
+ *
+ * \param files The list of files
+ * \param count The number of files
+ * \param minor The minor of which we should remove the files
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+			     struct drm_minor *minor)
+{
+	struct list_head *pos, *q;
+	struct drm_info_node *tmp;
+	int i;
+
+	for (i = 0; i < count; i++) {
+		list_for_each_safe(pos, q, &minor->debugfs_nodes.list) {
+			tmp = list_entry(pos, struct drm_info_node, list);
+			if (tmp->info_ent == &files[i]) {
+				debugfs_remove(tmp->dent);
+				list_del(pos);
+				drm_free(tmp, sizeof(struct drm_info_node),
+					 _DRM_DRIVER);
+			}
+		}
+	}
+	return 0;
+}
+EXPORT_SYMBOL(drm_debugfs_remove_files);
+
+/**
+ * Cleanup the debugfs filesystem resources.
+ *
+ * \param minor device minor number.
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_cleanup(struct drm_minor *minor)
+{
+	struct drm_device *dev = minor->dev;
+
+	if (!minor->debugfs_root)
+		return 0;
+
+	if (dev->driver->debugfs_cleanup)
+		dev->driver->debugfs_cleanup(minor);
+
+	drm_debugfs_remove_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES, minor);
+
+	debugfs_remove(minor->debugfs_root);
+	minor->debugfs_root = NULL;
+
+	return 0;
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 1441655388ab..c26ee0822a05 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -46,9 +46,11 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/debugfs.h>
 #include "drmP.h"
 #include "drm_core.h"
 
+
 static int drm_version(struct drm_device *dev, void *data,
 		       struct drm_file *file_priv);
 
@@ -178,7 +180,7 @@ int drm_lastclose(struct drm_device * dev)
 
 	/* Clear AGP information */
 	if (drm_core_has_AGP(dev) && dev->agp &&
-	    !drm_core_check_feature(dev, DRIVER_MODESET)) {
+			!drm_core_check_feature(dev, DRIVER_MODESET)) {
 		struct drm_agp_mem *entry, *tempe;
 
 		/* Remove AGP resources, but leave dev->agp
@@ -335,6 +337,13 @@ static int __init drm_core_init(void)
 		goto err_p3;
 	}
 
+	drm_debugfs_root = debugfs_create_dir("dri", NULL);
+	if (!drm_debugfs_root) {
+		DRM_ERROR("Cannot create /debugfs/dri\n");
+		ret = -1;
+		goto err_p3;
+	}
+
 	drm_mem_init();
 
 	DRM_INFO("Initialized %s %d.%d.%d %s\n",
@@ -353,6 +362,7 @@ err_p1:
 static void __exit drm_core_exit(void)
 {
 	remove_proc_entry("dri", NULL);
+	debugfs_remove(drm_debugfs_root);
 	drm_sysfs_destroy();
 
 	unregister_chrdev(DRM_MAJOR, "drm");
diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
new file mode 100644
index 000000000000..fc98952b9033
--- /dev/null
+++ b/drivers/gpu/drm/drm_info.c
@@ -0,0 +1,328 @@
+/**
+ * \file drm_info.c
+ * DRM info file implementations
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ * All Rights Reserved.
+ *
+ * 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
+ * VA LINUX SYSTEMS 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 <linux/seq_file.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/.../name" is read.
+ *
+ * Prints the device name together with the bus id if available.
+ */
+int drm_name_info(struct seq_file *m, void *data)
+{
+	struct drm_info_node *node = (struct drm_info_node *) m->private;
+	struct drm_minor *minor = node->minor;
+	struct drm_device *dev = minor->dev;
+	struct drm_master *master = minor->master;
+
+	if (!master)
+		return 0;
+
+	if (master->unique) {
+		seq_printf(m, "%s %s %s\n",
+			   dev->driver->pci_driver.name,
+			   pci_name(dev->pdev), master->unique);
+	} else {
+		seq_printf(m, "%s %s\n", dev->driver->pci_driver.name,
+			   pci_name(dev->pdev));
+	}
+
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vm" is read.
+ *
+ * Prints information about all mappings in drm_device::maplist.
+ */
+int drm_vm_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;
+	struct drm_map *map;
+	struct drm_map_list *r_list;
+
+	/* Hardcoded from _DRM_FRAME_BUFFER,
+	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
+	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
+	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+	const char *type;
+	int i;
+
+	mutex_lock(&dev->struct_mutex);
+	seq_printf(m, "slot	 offset	      size type flags	 address mtrr\n\n");
+	i = 0;
+	list_for_each_entry(r_list, &dev->maplist, head) {
+		map = r_list->map;
+		if (!map)
+			continue;
+		if (map->type < 0 || map->type > 5)
+			type = "??";
+		else
+			type = types[map->type];
+
+		seq_printf(m, "%4d 0x%08lx 0x%08lx %4.4s  0x%02x 0x%08lx ",
+			   i,
+			   map->offset,
+			   map->size, type, map->flags,
+			   (unsigned long) r_list->user_token);
+		if (map->mtrr < 0)
+			seq_printf(m, "none\n");
+		else
+			seq_printf(m, "%4d\n", map->mtrr);
+		i++;
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../queues" is read.
+ */
+int drm_queues_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;
+	int i;
+	struct drm_queue *q;
+
+	mutex_lock(&dev->struct_mutex);
+	seq_printf(m, "  ctx/flags   use   fin"
+		   "   blk/rw/rwf  wait    flushed	   queued"
+		   "      locks\n\n");
+	for (i = 0; i < dev->queue_count; i++) {
+		q = dev->queuelist[i];
+		atomic_inc(&q->use_count);
+		seq_printf(m,   "%5d/0x%03x %5d %5d"
+			   " %5d/%c%c/%c%c%c %5Zd\n",
+			   i,
+			   q->flags,
+			   atomic_read(&q->use_count),
+			   atomic_read(&q->finalization),
+			   atomic_read(&q->block_count),
+			   atomic_read(&q->block_read) ? 'r' : '-',
+			   atomic_read(&q->block_write) ? 'w' : '-',
+			   waitqueue_active(&q->read_queue) ? 'r' : '-',
+			   waitqueue_active(&q->write_queue) ? 'w' : '-',
+			   waitqueue_active(&q->flush_queue) ? 'f' : '-',
+			   DRM_BUFCOUNT(&q->waitlist));
+		atomic_dec(&q->use_count);
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../bufs" is read.
+ */
+int drm_bufs_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;
+	struct drm_device_dma *dma;
+	int i, seg_pages;
+
+	mutex_lock(&dev->struct_mutex);
+	dma = dev->dma;
+	if (!dma) {
+		mutex_unlock(&dev->struct_mutex);
+		return 0;
+	}
+
+	seq_printf(m, " o     size count  free	 segs pages    kB\n\n");
+	for (i = 0; i <= DRM_MAX_ORDER; i++) {
+		if (dma->bufs[i].buf_count) {
+			seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
+			seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
+				   i,
+				   dma->bufs[i].buf_size,
+				   dma->bufs[i].buf_count,
+				   atomic_read(&dma->bufs[i].freelist.count),
+				   dma->bufs[i].seg_count,
+				   seg_pages,
+				   seg_pages * PAGE_SIZE / 1024);
+		}
+	}
+	seq_printf(m, "\n");
+	for (i = 0; i < dma->buf_count; i++) {
+		if (i && !(i % 32))
+			seq_printf(m, "\n");
+		seq_printf(m, " %d", dma->buflist[i]->list);
+	}
+	seq_printf(m, "\n");
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vblank" is read.
+ */
+int drm_vblank_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;
+	int crtc;
+
+	mutex_lock(&dev->struct_mutex);
+	for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
+		seq_printf(m, "CRTC %d enable:     %d\n",
+			   crtc, atomic_read(&dev->vblank_refcount[crtc]));
+		seq_printf(m, "CRTC %d counter:    %d\n",
+			   crtc, drm_vblank_count(dev, crtc));
+		seq_printf(m, "CRTC %d last wait:  %d\n",
+			   crtc, dev->last_vblank_wait[crtc]);
+		seq_printf(m, "CRTC %d in modeset: %d\n",
+			   crtc, dev->vblank_inmodeset[crtc]);
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../clients" is read.
+ *
+ */
+int drm_clients_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;
+	struct drm_file *priv;
+
+	mutex_lock(&dev->struct_mutex);
+	seq_printf(m, "a dev	pid    uid	magic	  ioctls\n\n");
+	list_for_each_entry(priv, &dev->filelist, lhead) {
+		seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
+			   priv->authenticated ? 'y' : 'n',
+			   priv->minor->index,
+			   priv->pid,
+			   priv->uid, priv->magic, priv->ioctl_count);
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+
+int drm_gem_one_name_info(int id, void *ptr, void *data)
+{
+	struct drm_gem_object *obj = ptr;
+	struct seq_file *m = data;
+
+	seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
+
+	seq_printf(m, "%6d %8zd %7d %8d\n",
+		   obj->name, obj->size,
+		   atomic_read(&obj->handlecount.refcount),
+		   atomic_read(&obj->refcount.refcount));
+	return 0;
+}
+
+int drm_gem_name_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;
+
+	seq_printf(m, "  name     size handles refcount\n");
+	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
+	return 0;
+}
+
+int drm_gem_object_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;
+
+	seq_printf(m, "%d objects\n", atomic_read(&dev->object_count));
+	seq_printf(m, "%d object bytes\n", atomic_read(&dev->object_memory));
+	seq_printf(m, "%d pinned\n", atomic_read(&dev->pin_count));
+	seq_printf(m, "%d pin bytes\n", atomic_read(&dev->pin_memory));
+	seq_printf(m, "%d gtt bytes\n", atomic_read(&dev->gtt_memory));
+	seq_printf(m, "%d gtt total\n", dev->gtt_total);
+	return 0;
+}
+
+#if DRM_DEBUG_CODE
+
+int drm_vma_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;
+	struct drm_vma_entry *pt;
+	struct vm_area_struct *vma;
+#if defined(__i386__)
+	unsigned int pgprot;
+#endif
+
+	mutex_lock(&dev->struct_mutex);
+	seq_printf(m, "vma use count: %d, high_memory = %p, 0x%08lx\n",
+		   atomic_read(&dev->vma_count),
+		   high_memory, virt_to_phys(high_memory));
+
+	list_for_each_entry(pt, &dev->vmalist, head) {
+		vma = pt->vma;
+		if (!vma)
+			continue;
+		seq_printf(m,
+			   "\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
+			   pt->pid, vma->vm_start, vma->vm_end,
+			   vma->vm_flags & VM_READ ? 'r' : '-',
+			   vma->vm_flags & VM_WRITE ? 'w' : '-',
+			   vma->vm_flags & VM_EXEC ? 'x' : '-',
+			   vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+			   vma->vm_flags & VM_LOCKED ? 'l' : '-',
+			   vma->vm_flags & VM_IO ? 'i' : '-',
+			   vma->vm_pgoff);
+
+#if defined(__i386__)
+		pgprot = pgprot_val(vma->vm_page_prot);
+		seq_printf(m, " %c%c%c%c%c%c%c%c%c",
+			   pgprot & _PAGE_PRESENT ? 'p' : '-',
+			   pgprot & _PAGE_RW ? 'w' : 'r',
+			   pgprot & _PAGE_USER ? 'u' : 's',
+			   pgprot & _PAGE_PWT ? 't' : 'b',
+			   pgprot & _PAGE_PCD ? 'u' : 'c',
+			   pgprot & _PAGE_ACCESSED ? 'a' : '-',
+			   pgprot & _PAGE_DIRTY ? 'd' : '-',
+			   pgprot & _PAGE_PSE ? 'm' : 'k',
+			   pgprot & _PAGE_GLOBAL ? 'g' : 'l');
+#endif
+		seq_printf(m, "\n");
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+#endif
+
diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c
index 2e3f907a203a..bae5391165ac 100644
--- a/drivers/gpu/drm/drm_proc.c
+++ b/drivers/gpu/drm/drm_proc.c
@@ -37,697 +37,195 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/seq_file.h>
 #include "drmP.h"
 
-static int drm_name_info(char *buf, char **start, off_t offset,
-			 int request, int *eof, void *data);
-static int drm_vm_info(char *buf, char **start, off_t offset,
-		       int request, int *eof, void *data);
-static int drm_clients_info(char *buf, char **start, off_t offset,
-			    int request, int *eof, void *data);
-static int drm_queues_info(char *buf, char **start, off_t offset,
-			   int request, int *eof, void *data);
-static int drm_bufs_info(char *buf, char **start, off_t offset,
-			 int request, int *eof, void *data);
-static int drm_vblank_info(char *buf, char **start, off_t offset,
-			   int request, int *eof, void *data);
-static int drm_gem_name_info(char *buf, char **start, off_t offset,
-			     int request, int *eof, void *data);
-static int drm_gem_object_info(char *buf, char **start, off_t offset,
-			       int request, int *eof, void *data);
-#if DRM_DEBUG_CODE
-static int drm_vma_info(char *buf, char **start, off_t offset,
-			int request, int *eof, void *data);
-#endif
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
 
 /**
  * Proc file list.
  */
-static struct drm_proc_list {
-	const char *name;	/**< file name */
-	int (*f) (char *, char **, off_t, int, int *, void *);		/**< proc callback*/
-	u32 driver_features; /**< Required driver features for this entry */
-} drm_proc_list[] = {
+static struct drm_info_list drm_proc_list[] = {
 	{"name", drm_name_info, 0},
-	{"mem", drm_mem_info, 0},
 	{"vm", drm_vm_info, 0},
 	{"clients", drm_clients_info, 0},
 	{"queues", drm_queues_info, 0},
 	{"bufs", drm_bufs_info, 0},
-	{"vblank", drm_vblank_info, 0},
 	{"gem_names", drm_gem_name_info, DRIVER_GEM},
 	{"gem_objects", drm_gem_object_info, DRIVER_GEM},
 #if DRM_DEBUG_CODE
-	{"vma", drm_vma_info},
+	{"vma", drm_vma_info, 0},
 #endif
 };
-
 #define DRM_PROC_ENTRIES ARRAY_SIZE(drm_proc_list)
 
+static int drm_proc_open(struct inode *inode, struct file *file)
+{
+	struct drm_info_node* node = PDE(inode)->data;
+
+	return single_open(file, node->info_ent->show, node);
+}
+
+static const struct file_operations drm_proc_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_proc_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+
 /**
- * Initialize the DRI proc filesystem for a device.
+ * Initialize a given set of proc files for a device
  *
- * \param dev DRM device.
- * \param minor device minor number.
+ * \param files The array of files to create
+ * \param count The number of files given
  * \param root DRI proc dir entry.
- * \param dev_root resulting DRI device proc dir entry.
- * \return root entry pointer on success, or NULL on failure.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
  *
- * Create the DRI proc root entry "/proc/dri", the device proc root entry
- * "/proc/dri/%minor%/", and each entry in proc_list as
- * "/proc/dri/%minor%/%name%".
+ * Create a given set of proc files represented by an array of
+ * gdm_proc_lists in the given root directory.
  */
-int drm_proc_init(struct drm_minor *minor, int minor_id,
-		  struct proc_dir_entry *root)
+int drm_proc_create_files(struct drm_info_list *files, int count,
+			  struct proc_dir_entry *root, struct drm_minor *minor)
 {
 	struct drm_device *dev = minor->dev;
 	struct proc_dir_entry *ent;
-	int i, j, ret;
+	struct drm_info_node *tmp;
 	char name[64];
+	int i, ret;
 
-	sprintf(name, "%d", minor_id);
-	minor->dev_root = proc_mkdir(name, root);
-	if (!minor->dev_root) {
-		DRM_ERROR("Cannot create /proc/dri/%s\n", name);
-		return -1;
-	}
-
-	for (i = 0; i < DRM_PROC_ENTRIES; i++) {
-		u32 features = drm_proc_list[i].driver_features;
+	for (i = 0; i < count; i++) {
+		u32 features = files[i].driver_features;
 
 		if (features != 0 &&
 		    (dev->driver->driver_features & features) != features)
 			continue;
 
-		ent = create_proc_entry(drm_proc_list[i].name,
-					S_IFREG | S_IRUGO, minor->dev_root);
+		tmp = drm_alloc(sizeof(struct drm_info_node), _DRM_DRIVER);
+		ent = create_proc_entry(files[i].name, S_IFREG | S_IRUGO, root);
 		if (!ent) {
 			DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
-				  name, drm_proc_list[i].name);
+				  name, files[i].name);
+			drm_free(tmp, sizeof(struct drm_info_node),
+				 _DRM_DRIVER);
 			ret = -1;
 			goto fail;
 		}
-		ent->read_proc = drm_proc_list[i].f;
-		ent->data = minor;
-	}
 
-	if (dev->driver->proc_init) {
-		ret = dev->driver->proc_init(minor);
-		if (ret) {
-			DRM_ERROR("DRM: Driver failed to initialize "
-				  "/proc/dri.\n");
-			goto fail;
-		}
+		ent->proc_fops = &drm_proc_fops;
+		ent->data = tmp;
+		tmp->minor = minor;
+		tmp->info_ent = &files[i];
+		list_add(&(tmp->list), &(minor->proc_nodes.list));
 	}
-
 	return 0;
- fail:
 
-	for (j = 0; j < i; j++)
-		remove_proc_entry(drm_proc_list[i].name,
-				  minor->dev_root);
-	remove_proc_entry(name, root);
-	minor->dev_root = NULL;
+fail:
+	for (i = 0; i < count; i++)
+		remove_proc_entry(drm_proc_list[i].name, minor->proc_root);
 	return ret;
 }
 
 /**
- * Cleanup the proc filesystem resources.
+ * Initialize the DRI proc filesystem for a device
  *
- * \param minor device minor number.
+ * \param dev DRM device
+ * \param minor device minor number
  * \param root DRI proc dir entry.
- * \param dev_root DRI device proc dir entry.
- * \return always zero.
+ * \param dev_root resulting DRI device proc dir entry.
+ * \return root entry pointer on success, or NULL on failure.
  *
- * Remove all proc entries created by proc_init().
+ * Create the DRI proc root entry "/proc/dri", the device proc root entry
+ * "/proc/dri/%minor%/", and each entry in proc_list as
+ * "/proc/dri/%minor%/%name%".
  */
-int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
+int drm_proc_init(struct drm_minor *minor, int minor_id,
+		  struct proc_dir_entry *root)
 {
 	struct drm_device *dev = minor->dev;
-	int i;
 	char name[64];
+	int ret;
 
-	if (!root || !minor->dev_root)
-		return 0;
-
-	if (dev->driver->proc_cleanup)
-		dev->driver->proc_cleanup(minor);
-
-	for (i = 0; i < DRM_PROC_ENTRIES; i++)
-		remove_proc_entry(drm_proc_list[i].name, minor->dev_root);
-	sprintf(name, "%d", minor->index);
-	remove_proc_entry(name, root);
-
-	return 0;
-}
-
-/**
- * Called when "/proc/dri/.../name" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- *
- * Prints the device name together with the bus id if available.
- */
-static int drm_name_info(char *buf, char **start, off_t offset, int request,
-			 int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_master *master = minor->master;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
+	INIT_LIST_HEAD(&minor->proc_nodes.list);
+	sprintf(name, "%d", minor_id);
+	minor->proc_root = proc_mkdir(name, root);
+	if (!minor->proc_root) {
+		DRM_ERROR("Cannot create /proc/dri/%s\n", name);
+		return -1;
 	}
 
-	if (!master)
-		return 0;
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	if (master->unique) {
-		DRM_PROC_PRINT("%s %s %s\n",
-			       dev->driver->pci_driver.name,
-			       pci_name(dev->pdev), master->unique);
-	} else {
-		DRM_PROC_PRINT("%s %s\n", dev->driver->pci_driver.name,
-			       pci_name(dev->pdev));
+	ret = drm_proc_create_files(drm_proc_list, DRM_PROC_ENTRIES,
+				    minor->proc_root, minor);
+	if (ret) {
+		remove_proc_entry(name, root);
+		minor->proc_root = NULL;
+		DRM_ERROR("Failed to create core drm proc files\n");
+		return ret;
 	}
 
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Called when "/proc/dri/.../vm" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- *
- * Prints information about all mappings in drm_device::maplist.
- */
-static int drm__vm_info(char *buf, char **start, off_t offset, int request,
-			int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	struct drm_local_map *map;
-	struct drm_map_list *r_list;
-
-	/* Hardcoded from _DRM_FRAME_BUFFER,
-	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
-	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
-	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
-	const char *type;
-	int i;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT("slot	 offset	      size type flags	 "
-		       "address mtrr\n\n");
-	i = 0;
-	list_for_each_entry(r_list, &dev->maplist, head) {
-		map = r_list->map;
-		if (!map)
-			continue;
-		if (map->type < 0 || map->type > 5)
-			type = "??";
-		else
-			type = types[map->type];
-		DRM_PROC_PRINT("%4d 0x%08llx 0x%08lx %4.4s  0x%02x 0x%08lx ",
-			       i,
-			       (unsigned long long)map->offset,
-			       map->size, type, map->flags,
-			       (unsigned long) r_list->user_token);
-		if (map->mtrr < 0) {
-			DRM_PROC_PRINT("none\n");
-		} else {
-			DRM_PROC_PRINT("%4d\n", map->mtrr);
+	if (dev->driver->proc_init) {
+		ret = dev->driver->proc_init(minor);
+		if (ret) {
+			DRM_ERROR("DRM: Driver failed to initialize "
+				  "/proc/dri.\n");
+			return ret;
 		}
-		i++;
-	}
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _vm_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_vm_info(char *buf, char **start, off_t offset, int request,
-		       int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__vm_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
-}
-
-/**
- * Called when "/proc/dri/.../queues" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- */
-static int drm__queues_info(char *buf, char **start, off_t offset,
-			    int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	int i;
-	struct drm_queue *q;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
 	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT("  ctx/flags   use   fin"
-		       "   blk/rw/rwf  wait    flushed	   queued"
-		       "      locks\n\n");
-	for (i = 0; i < dev->queue_count; i++) {
-		q = dev->queuelist[i];
-		atomic_inc(&q->use_count);
-		DRM_PROC_PRINT_RET(atomic_dec(&q->use_count),
-				   "%5d/0x%03x %5d %5d"
-				   " %5d/%c%c/%c%c%c %5Zd\n",
-				   i,
-				   q->flags,
-				   atomic_read(&q->use_count),
-				   atomic_read(&q->finalization),
-				   atomic_read(&q->block_count),
-				   atomic_read(&q->block_read) ? 'r' : '-',
-				   atomic_read(&q->block_write) ? 'w' : '-',
-				   waitqueue_active(&q->read_queue) ? 'r' : '-',
-				   waitqueue_active(&q->
-						    write_queue) ? 'w' : '-',
-				   waitqueue_active(&q->
-						    flush_queue) ? 'f' : '-',
-				   DRM_BUFCOUNT(&q->waitlist));
-		atomic_dec(&q->use_count);
-	}
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _queues_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_queues_info(char *buf, char **start, off_t offset, int request,
-			   int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__queues_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
+	return 0;
 }
 
-/**
- * Called when "/proc/dri/.../bufs" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- */
-static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
-			  int *eof, void *data)
+int drm_proc_remove_files(struct drm_info_list *files, int count,
+			  struct drm_minor *minor)
 {
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	struct drm_device_dma *dma = dev->dma;
+	struct list_head *pos, *q;
+	struct drm_info_node *tmp;
 	int i;
 
-	if (!dma || offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT(" o     size count  free	 segs pages    kB\n\n");
-	for (i = 0; i <= DRM_MAX_ORDER; i++) {
-		if (dma->bufs[i].buf_count)
-			DRM_PROC_PRINT("%2d %8d %5d %5d %5d %5d %5ld\n",
-				       i,
-				       dma->bufs[i].buf_size,
-				       dma->bufs[i].buf_count,
-				       atomic_read(&dma->bufs[i]
-						   .freelist.count),
-				       dma->bufs[i].seg_count,
-				       dma->bufs[i].seg_count
-				       * (1 << dma->bufs[i].page_order),
-				       (dma->bufs[i].seg_count
-					* (1 << dma->bufs[i].page_order))
-				       * PAGE_SIZE / 1024);
-	}
-	DRM_PROC_PRINT("\n");
-	for (i = 0; i < dma->buf_count; i++) {
-		if (i && !(i % 32))
-			DRM_PROC_PRINT("\n");
-		DRM_PROC_PRINT(" %d", dma->buflist[i]->list);
+	for (i = 0; i < count; i++) {
+		list_for_each_safe(pos, q, &minor->proc_nodes.list) {
+			tmp = list_entry(pos, struct drm_info_node, list);
+			if (tmp->info_ent == &files[i]) {
+				remove_proc_entry(files[i].name,
+						  minor->proc_root);
+				list_del(pos);
+				drm_free(tmp, sizeof(struct drm_info_node),
+					 _DRM_DRIVER);
+			}
+		}
 	}
-	DRM_PROC_PRINT("\n");
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _bufs_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
-			 int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__bufs_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
+	return 0;
 }
 
 /**
- * Called when "/proc/dri/.../vblank" is read.
+ * Cleanup the proc filesystem resources.
  *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- */
-static int drm__vblank_info(char *buf, char **start, off_t offset, int request,
-			  int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	int crtc;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
-		DRM_PROC_PRINT("CRTC %d enable:     %d\n",
-			       crtc, atomic_read(&dev->vblank_refcount[crtc]));
-		DRM_PROC_PRINT("CRTC %d counter:    %d\n",
-			       crtc, drm_vblank_count(dev, crtc));
-		DRM_PROC_PRINT("CRTC %d last wait:  %d\n",
-			       crtc, dev->last_vblank_wait[crtc]);
-		DRM_PROC_PRINT("CRTC %d in modeset: %d\n",
-			       crtc, dev->vblank_inmodeset[crtc]);
-	}
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _vblank_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_vblank_info(char *buf, char **start, off_t offset, int request,
-			 int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__vblank_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
-}
-
-/**
- * Called when "/proc/dri/.../clients" is read.
+ * \param minor device minor number.
+ * \param root DRI proc dir entry.
+ * \param dev_root DRI device proc dir entry.
+ * \return always zero.
  *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
+ * Remove all proc entries created by proc_init().
  */
-static int drm__clients_info(char *buf, char **start, off_t offset,
-			     int request, int *eof, void *data)
+int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
 {
-	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
-	int len = 0;
-	struct drm_file *priv;
+	char name[64];
 
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
+	if (!root || !minor->proc_root)
 		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT("a dev	pid    uid	magic	  ioctls\n\n");
-	list_for_each_entry(priv, &dev->filelist, lhead) {
-		DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
-			       priv->authenticated ? 'y' : 'n',
-			       priv->minor->index,
-			       priv->pid,
-			       priv->uid, priv->magic, priv->ioctl_count);
-	}
 
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _clients_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_clients_info(char *buf, char **start, off_t offset,
-			    int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__clients_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
-}
-
-struct drm_gem_name_info_data {
-       int                     len;
-       char                    *buf;
-       int                     eof;
-};
+	if (dev->driver->proc_cleanup)
+		dev->driver->proc_cleanup(minor);
 
-static int drm_gem_one_name_info(int id, void *ptr, void *data)
-{
-	struct drm_gem_object *obj = ptr;
-	struct drm_gem_name_info_data   *nid = data;
+	drm_proc_remove_files(drm_proc_list, DRM_PROC_ENTRIES, minor);
 
-	DRM_INFO("name %d size %zd\n", obj->name, obj->size);
-	if (nid->eof)
-		return 0;
+	sprintf(name, "%d", minor->index);
+	remove_proc_entry(name, root);
 
-	nid->len += sprintf(&nid->buf[nid->len],
-			    "%6d %8zd %7d %8d\n",
-			    obj->name, obj->size,
-			    atomic_read(&obj->handlecount.refcount),
-			    atomic_read(&obj->refcount.refcount));
-	if (nid->len > DRM_PROC_LIMIT) {
-		nid->eof = 1;
-		return 0;
-	}
 	return 0;
 }
 
-static int drm_gem_name_info(char *buf, char **start, off_t offset,
-			     int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	struct drm_gem_name_info_data nid;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	nid.len = sprintf(buf, "  name     size handles refcount\n");
-	nid.buf = buf;
-	nid.eof = 0;
-	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, &nid);
-
-	*start = &buf[offset];
-	*eof = 0;
-	if (nid.len > request + offset)
-		return request;
-	*eof = 1;
-	return nid.len - offset;
-}
-
-static int drm_gem_object_info(char *buf, char **start, off_t offset,
-			       int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	DRM_PROC_PRINT("%d objects\n", atomic_read(&dev->object_count));
-	DRM_PROC_PRINT("%d object bytes\n", atomic_read(&dev->object_memory));
-	DRM_PROC_PRINT("%d pinned\n", atomic_read(&dev->pin_count));
-	DRM_PROC_PRINT("%d pin bytes\n", atomic_read(&dev->pin_memory));
-	DRM_PROC_PRINT("%d gtt bytes\n", atomic_read(&dev->gtt_memory));
-	DRM_PROC_PRINT("%d gtt total\n", dev->gtt_total);
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-#if DRM_DEBUG_CODE
-
-static int drm__vma_info(char *buf, char **start, off_t offset, int request,
-			 int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	struct drm_vma_entry *pt;
-	struct vm_area_struct *vma;
-#if defined(__i386__)
-	unsigned int pgprot;
-#endif
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
-		       atomic_read(&dev->vma_count),
-		       high_memory, virt_to_phys(high_memory));
-	list_for_each_entry(pt, &dev->vmalist, head) {
-		if (!(vma = pt->vma))
-			continue;
-		DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
-			       pt->pid,
-			       vma->vm_start,
-			       vma->vm_end,
-			       vma->vm_flags & VM_READ ? 'r' : '-',
-			       vma->vm_flags & VM_WRITE ? 'w' : '-',
-			       vma->vm_flags & VM_EXEC ? 'x' : '-',
-			       vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
-			       vma->vm_flags & VM_LOCKED ? 'l' : '-',
-			       vma->vm_flags & VM_IO ? 'i' : '-',
-			       vma->vm_pgoff);
-
-#if defined(__i386__)
-		pgprot = pgprot_val(vma->vm_page_prot);
-		DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c",
-			       pgprot & _PAGE_PRESENT ? 'p' : '-',
-			       pgprot & _PAGE_RW ? 'w' : 'r',
-			       pgprot & _PAGE_USER ? 'u' : 's',
-			       pgprot & _PAGE_PWT ? 't' : 'b',
-			       pgprot & _PAGE_PCD ? 'u' : 'c',
-			       pgprot & _PAGE_ACCESSED ? 'a' : '-',
-			       pgprot & _PAGE_DIRTY ? 'd' : '-',
-			       pgprot & _PAGE_PSE ? 'm' : 'k',
-			       pgprot & _PAGE_GLOBAL ? 'g' : 'l');
-#endif
-		DRM_PROC_PRINT("\n");
-	}
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-static int drm_vma_info(char *buf, char **start, off_t offset, int request,
-			int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__vma_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
-}
-#endif
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 45a536b9d7f5..d009661781bc 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -50,6 +50,7 @@ struct idr drm_minors_idr;
 
 struct class *drm_class;
 struct proc_dir_entry *drm_proc_root;
+struct dentry *drm_debugfs_root;
 
 static int drm_minor_get_id(struct drm_device *dev, int type)
 {
@@ -313,7 +314,15 @@ static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int t
 			goto err_mem;
 		}
 	} else
-		new_minor->dev_root = NULL;
+		new_minor->proc_root = NULL;
+
+#if defined(CONFIG_DEBUG_FS)
+	ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
+	if (ret) {
+		DRM_ERROR("DRM: Failed to initialize /debugfs/dri.\n");
+		goto err_g2;
+	}
+#endif
 
 	ret = drm_sysfs_device_add(new_minor);
 	if (ret) {
@@ -430,6 +439,10 @@ int drm_put_minor(struct drm_minor **minor_p)
 
 	if (minor->type == DRM_MINOR_LEGACY)
 		drm_proc_cleanup(minor, drm_proc_root);
+#if defined(CONFIG_DEBUG_FS)
+	drm_debugfs_cleanup(minor);
+#endif
+
 	drm_sysfs_device_remove(minor);
 
 	idr_remove(&drm_minors_idr, minor->index);
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 793cba39d832..51c5a050aa73 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -7,7 +7,7 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
           i915_suspend.o \
 	  i915_gem.o \
 	  i915_gem_debug.o \
-	  i915_gem_proc.o \
+	  i915_gem_debugfs.o \
 	  i915_gem_tiling.o \
 	  intel_display.o \
 	  intel_crt.o \
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index d10ec9e5033c..2c0167693450 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -182,8 +182,10 @@ static struct drm_driver driver = {
 	.get_reg_ofs = drm_core_get_reg_ofs,
 	.master_create = i915_master_create,
 	.master_destroy = i915_master_destroy,
-	.proc_init = i915_gem_proc_init,
-	.proc_cleanup = i915_gem_proc_cleanup,
+#if defined(CONFIG_DEBUG_FS)
+	.debugfs_init = i915_gem_debugfs_init,
+	.debugfs_cleanup = i915_gem_debugfs_cleanup,
+#endif
 	.gem_init_object = i915_gem_init_object,
 	.gem_free_object = i915_gem_free_object,
 	.gem_vm_ops = &i915_gem_vm_ops,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index d6cc9861e0a1..1bc45a78ffcd 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -604,8 +604,6 @@ int i915_gem_get_tiling(struct drm_device *dev, void *data,
 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
 				struct drm_file *file_priv);
 void i915_gem_load(struct drm_device *dev);
-int i915_gem_proc_init(struct drm_minor *minor);
-void i915_gem_proc_cleanup(struct drm_minor *minor);
 int i915_gem_init_object(struct drm_gem_object *obj);
 void i915_gem_free_object(struct drm_gem_object *obj);
 int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
@@ -649,6 +647,10 @@ void i915_gem_dump_object(struct drm_gem_object *obj, int len,
 			  const char *where, uint32_t mark);
 void i915_dump_lru(struct drm_device *dev, const char *where);
 
+/* i915_debugfs.c */
+int i915_gem_debugfs_init(struct drm_minor *minor);
+void i915_gem_debugfs_cleanup(struct drm_minor *minor);
+
 /* i915_suspend.c */
 extern int i915_save_state(struct drm_device *dev);
 extern int i915_restore_state(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/i915_gem_debugfs.c b/drivers/gpu/drm/i915/i915_gem_debugfs.c
new file mode 100644
index 000000000000..dd2b0edb9963
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_gem_debugfs.c
@@ -0,0 +1,230 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *    Keith Packard <keithp@keithp.com>
+ *
+ */
+
+#include <linux/seq_file.h>
+#include "drmP.h"
+#include "drm.h"
+#include "i915_drm.h"
+#include "i915_drv.h"
+
+#define DRM_I915_RING_DEBUG 1
+
+
+#if defined(CONFIG_DEBUG_FS)
+
+static int i915_gem_active_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;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_object *obj_priv;
+
+	seq_printf(m, "Active:\n");
+	list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
+			list)
+	{
+		struct drm_gem_object *obj = obj_priv->obj;
+		if (obj->name) {
+			seq_printf(m, "    %p(%d): %08x %08x %d\n",
+					obj, obj->name,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		} else {
+			seq_printf(m, "       %p: %08x %08x %d\n",
+					obj,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		}
+	}
+	return 0;
+}
+
+static int i915_gem_flushing_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;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_object *obj_priv;
+
+	seq_printf(m, "Flushing:\n");
+	list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,
+			list)
+	{
+		struct drm_gem_object *obj = obj_priv->obj;
+		if (obj->name) {
+			seq_printf(m, "    %p(%d): %08x %08x %d\n",
+					obj, obj->name,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		} else {
+			seq_printf(m, "       %p: %08x %08x %d\n", obj,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		}
+	}
+	return 0;
+}
+
+static int i915_gem_inactive_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;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_object *obj_priv;
+
+	seq_printf(m, "Inactive:\n");
+	list_for_each_entry(obj_priv, &dev_priv->mm.inactive_list,
+			list)
+	{
+		struct drm_gem_object *obj = obj_priv->obj;
+		if (obj->name) {
+			seq_printf(m, "    %p(%d): %08x %08x %d\n",
+					obj, obj->name,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		} else {
+			seq_printf(m, "       %p: %08x %08x %d\n", obj,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		}
+	}
+	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;
+	struct drm_device *dev = node->minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_request *gem_request;
+
+	seq_printf(m, "Request:\n");
+	list_for_each_entry(gem_request, &dev_priv->mm.request_list, list) {
+		seq_printf(m, "    %d @ %d\n",
+			   gem_request->seqno,
+			   (int) (jiffies - gem_request->emitted_jiffies));
+	}
+	return 0;
+}
+
+static int i915_gem_seqno_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;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+
+	if (dev_priv->hw_status_page != NULL) {
+		seq_printf(m, "Current sequence: %d\n",
+			   i915_get_gem_seqno(dev));
+	} else {
+		seq_printf(m, "Current sequence: hws uninitialized\n");
+	}
+	seq_printf(m, "Waiter sequence:  %d\n",
+			dev_priv->mm.waiting_gem_seqno);
+	seq_printf(m, "IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);
+	return 0;
+}
+
+
+static int i915_interrupt_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;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+
+	seq_printf(m, "Interrupt enable:    %08x\n",
+		   I915_READ(IER));
+	seq_printf(m, "Interrupt identity:  %08x\n",
+		   I915_READ(IIR));
+	seq_printf(m, "Interrupt mask:      %08x\n",
+		   I915_READ(IMR));
+	seq_printf(m, "Pipe A stat:         %08x\n",
+		   I915_READ(PIPEASTAT));
+	seq_printf(m, "Pipe B stat:         %08x\n",
+		   I915_READ(PIPEBSTAT));
+	seq_printf(m, "Interrupts received: %d\n",
+		   atomic_read(&dev_priv->irq_received));
+	if (dev_priv->hw_status_page != NULL) {
+		seq_printf(m, "Current sequence:    %d\n",
+			   i915_get_gem_seqno(dev));
+	} else {
+		seq_printf(m, "Current sequence:    hws uninitialized\n");
+	}
+	seq_printf(m, "Waiter sequence:     %d\n",
+		   dev_priv->mm.waiting_gem_seqno);
+	seq_printf(m, "IRQ sequence:        %d\n",
+		   dev_priv->mm.irq_gem_seqno);
+	return 0;
+}
+
+static int i915_hws_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;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	int i;
+	volatile u32 *hws;
+
+	hws = (volatile u32 *)dev_priv->hw_status_page;
+	if (hws == NULL)
+		return 0;
+
+	for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
+		seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+			   i * 4,
+			   hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
+	}
+	return 0;
+}
+
+static struct drm_info_list i915_gem_debugfs_list[] = {
+	{"i915_gem_active", i915_gem_active_info, 0},
+	{"i915_gem_flushing", i915_gem_flushing_info, 0},
+	{"i915_gem_inactive", i915_gem_inactive_info, 0},
+	{"i915_gem_request", i915_gem_request_info, 0},
+	{"i915_gem_seqno", i915_gem_seqno_info, 0},
+	{"i915_gem_interrupt", i915_interrupt_info, 0},
+	{"i915_gem_hws", i915_hws_info, 0},
+};
+#define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list)
+
+int i915_gem_debugfs_init(struct drm_minor *minor)
+{
+	return drm_debugfs_create_files(i915_gem_debugfs_list,
+					I915_GEM_DEBUGFS_ENTRIES,
+					minor->debugfs_root, minor);
+}
+
+void i915_gem_debugfs_cleanup(struct drm_minor *minor)
+{
+	drm_debugfs_remove_files(i915_gem_debugfs_list,
+				 I915_GEM_DEBUGFS_ENTRIES, minor);
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
diff --git a/drivers/gpu/drm/i915/i915_gem_proc.c b/drivers/gpu/drm/i915/i915_gem_proc.c
deleted file mode 100644
index 4d1b9de0cd8b..000000000000
--- a/drivers/gpu/drm/i915/i915_gem_proc.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * Copyright © 2008 Intel Corporation
- *
- * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * Authors:
- *    Eric Anholt <eric@anholt.net>
- *    Keith Packard <keithp@keithp.com>
- *
- */
-
-#include "drmP.h"
-#include "drm.h"
-#include "i915_drm.h"
-#include "i915_drv.h"
-
-static int i915_gem_active_info(char *buf, char **start, off_t offset,
-				int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	DRM_PROC_PRINT("Active:\n");
-	list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
-			    list)
-	{
-		struct drm_gem_object *obj = obj_priv->obj;
-		if (obj->name) {
-			DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
-				       obj, obj->name,
-				       obj->read_domains, obj->write_domain,
-				       obj_priv->last_rendering_seqno);
-		} else {
-			DRM_PROC_PRINT("       %p: %08x %08x %d\n",
-				       obj,
-				       obj->read_domains, obj->write_domain,
-				       obj_priv->last_rendering_seqno);
-		}
-	}
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-static int i915_gem_flushing_info(char *buf, char **start, off_t offset,
-				  int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	DRM_PROC_PRINT("Flushing:\n");
-	list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,
-			    list)
-	{
-		struct drm_gem_object *obj = obj_priv->obj;
-		if (obj->name) {
-			DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
-				       obj, obj->name,
-				       obj->read_domains, obj->write_domain,
-				       obj_priv->last_rendering_seqno);
-		} else {
-			DRM_PROC_PRINT("       %p: %08x %08x %d\n", obj,
-				       obj->read_domains, obj->write_domain,
-				       obj_priv->last_rendering_seqno);
-		}
-	}
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-static int i915_gem_inactive_info(char *buf, char **start, off_t offset,
-				  int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_object *obj_priv;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	DRM_PROC_PRINT("Inactive:\n");
-	list_for_each_entry(obj_priv, &dev_priv->mm.inactive_list,
-			    list)
-	{
-		struct drm_gem_object *obj = obj_priv->obj;
-		if (obj->name) {
-			DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
-				       obj, obj->name,
-				       obj->read_domains, obj->write_domain,
-				       obj_priv->last_rendering_seqno);
-		} else {
-			DRM_PROC_PRINT("       %p: %08x %08x %d\n", obj,
-				       obj->read_domains, obj->write_domain,
-				       obj_priv->last_rendering_seqno);
-		}
-	}
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-static int i915_gem_request_info(char *buf, char **start, off_t offset,
-				 int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_i915_gem_request *gem_request;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	DRM_PROC_PRINT("Request:\n");
-	list_for_each_entry(gem_request, &dev_priv->mm.request_list,
-			    list)
-	{
-		DRM_PROC_PRINT("    %d @ %d\n",
-			       gem_request->seqno,
-			       (int) (jiffies - gem_request->emitted_jiffies));
-	}
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-static int i915_gem_seqno_info(char *buf, char **start, off_t offset,
-			       int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	if (dev_priv->hw_status_page != NULL) {
-		DRM_PROC_PRINT("Current sequence: %d\n",
-			       i915_get_gem_seqno(dev));
-	} else {
-		DRM_PROC_PRINT("Current sequence: hws uninitialized\n");
-	}
-	DRM_PROC_PRINT("Waiter sequence:  %d\n",
-		       dev_priv->mm.waiting_gem_seqno);
-	DRM_PROC_PRINT("IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-
-static int i915_interrupt_info(char *buf, char **start, off_t offset,
-			       int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	DRM_PROC_PRINT("Interrupt enable:    %08x\n",
-		       I915_READ(IER));
-	DRM_PROC_PRINT("Interrupt identity:  %08x\n",
-		       I915_READ(IIR));
-	DRM_PROC_PRINT("Interrupt mask:      %08x\n",
-		       I915_READ(IMR));
-	DRM_PROC_PRINT("Pipe A stat:         %08x\n",
-		       I915_READ(PIPEASTAT));
-	DRM_PROC_PRINT("Pipe B stat:         %08x\n",
-		       I915_READ(PIPEBSTAT));
-	DRM_PROC_PRINT("Interrupts received: %d\n",
-		       atomic_read(&dev_priv->irq_received));
-	if (dev_priv->hw_status_page != NULL) {
-		DRM_PROC_PRINT("Current sequence:    %d\n",
-			       i915_get_gem_seqno(dev));
-	} else {
-		DRM_PROC_PRINT("Current sequence:    hws uninitialized\n");
-	}
-	DRM_PROC_PRINT("Waiter sequence:     %d\n",
-		       dev_priv->mm.waiting_gem_seqno);
-	DRM_PROC_PRINT("IRQ sequence:        %d\n",
-		       dev_priv->mm.irq_gem_seqno);
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-static int i915_hws_info(char *buf, char **start, off_t offset,
-			 int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	int len = 0, i;
-	volatile u32 *hws;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	hws = (volatile u32 *)dev_priv->hw_status_page;
-	if (hws == NULL) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
-		DRM_PROC_PRINT("0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
-			       i * 4,
-			       hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
-	}
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-static struct drm_proc_list {
-	/** file name */
-	const char *name;
-	/** proc callback*/
-	int (*f) (char *, char **, off_t, int, int *, void *);
-} i915_gem_proc_list[] = {
-	{"i915_gem_active", i915_gem_active_info},
-	{"i915_gem_flushing", i915_gem_flushing_info},
-	{"i915_gem_inactive", i915_gem_inactive_info},
-	{"i915_gem_request", i915_gem_request_info},
-	{"i915_gem_seqno", i915_gem_seqno_info},
-	{"i915_gem_interrupt", i915_interrupt_info},
-	{"i915_gem_hws", i915_hws_info},
-};
-
-#define I915_GEM_PROC_ENTRIES ARRAY_SIZE(i915_gem_proc_list)
-
-int i915_gem_proc_init(struct drm_minor *minor)
-{
-	struct proc_dir_entry *ent;
-	int i, j;
-
-	for (i = 0; i < I915_GEM_PROC_ENTRIES; i++) {
-		ent = create_proc_entry(i915_gem_proc_list[i].name,
-					S_IFREG | S_IRUGO, minor->dev_root);
-		if (!ent) {
-			DRM_ERROR("Cannot create /proc/dri/.../%s\n",
-				  i915_gem_proc_list[i].name);
-			for (j = 0; j < i; j++)
-				remove_proc_entry(i915_gem_proc_list[i].name,
-						  minor->dev_root);
-			return -1;
-		}
-		ent->read_proc = i915_gem_proc_list[i].f;
-		ent->data = minor;
-	}
-	return 0;
-}
-
-void i915_gem_proc_cleanup(struct drm_minor *minor)
-{
-	int i;
-
-	if (!minor->dev_root)
-		return;
-
-	for (i = 0; i < I915_GEM_PROC_ENTRIES; i++)
-		remove_proc_entry(i915_gem_proc_list[i].name, minor->dev_root);
-}
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 458e38e1d538..ccbcd13b6ed3 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -770,6 +770,8 @@ struct drm_driver {
 
 	int (*proc_init)(struct drm_minor *minor);
 	void (*proc_cleanup)(struct drm_minor *minor);
+	int (*debugfs_init)(struct drm_minor *minor);
+	void (*debugfs_cleanup)(struct drm_minor *minor);
 
 	/**
 	 * Driver-specific constructor for drm_gem_objects, to set up
@@ -805,6 +807,48 @@ struct drm_driver {
 #define DRM_MINOR_CONTROL 2
 #define DRM_MINOR_RENDER 3
 
+
+/**
+ * debugfs node list. This structure represents a debugfs file to
+ * be created by the drm core
+ */
+struct drm_debugfs_list {
+	const char *name; /** file name */
+	int (*show)(struct seq_file*, void*); /** show callback */
+	u32 driver_features; /**< Required driver features for this entry */
+};
+
+/**
+ * debugfs node structure. This structure represents a debugfs file.
+ */
+struct drm_debugfs_node {
+	struct list_head list;
+	struct drm_minor *minor;
+	struct drm_debugfs_list *debugfs_ent;
+	struct dentry *dent;
+};
+
+/**
+ * Info file list entry. This structure represents a debugfs or proc file to
+ * be created by the drm core
+ */
+struct drm_info_list {
+	const char *name; /** file name */
+	int (*show)(struct seq_file*, void*); /** show callback */
+	u32 driver_features; /**< Required driver features for this entry */
+	void *data;
+};
+
+/**
+ * debugfs node structure. This structure represents a debugfs file.
+ */
+struct drm_info_node {
+	struct list_head list;
+	struct drm_minor *minor;
+	struct drm_info_list *info_ent;
+	struct dentry *dent;
+};
+
 /**
  * DRM minor structure. This structure represents a drm minor number.
  */
@@ -814,7 +858,12 @@ struct drm_minor {
 	dev_t device;			/**< Device number for mknod */
 	struct device kdev;		/**< Linux device */
 	struct drm_device *dev;
-	struct proc_dir_entry *dev_root;  /**< proc directory entry */
+
+	struct proc_dir_entry *proc_root;  /**< proc directory entry */
+	struct drm_info_node proc_nodes;
+	struct dentry *debugfs_root;
+	struct drm_info_node debugfs_nodes;
+
 	struct drm_master *master; /* currently active master for this node */
 	struct list_head master_list;
 	struct drm_mode_group mode_group;
@@ -1270,6 +1319,7 @@ extern unsigned int drm_debug;
 
 extern struct class *drm_class;
 extern struct proc_dir_entry *drm_proc_root;
+extern struct dentry *drm_debugfs_root;
 
 extern struct idr drm_minors_idr;
 
@@ -1280,6 +1330,31 @@ extern int drm_proc_init(struct drm_minor *minor, int minor_id,
 			 struct proc_dir_entry *root);
 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
 
+				/* Debugfs support */
+#if defined(CONFIG_DEBUG_FS)
+extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+			    struct dentry *root);
+extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
+				    struct dentry *root, struct drm_minor *minor);
+extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+                                    struct drm_minor *minor);
+extern int drm_debugfs_cleanup(struct drm_minor *minor);
+#endif
+
+				/* Info file support */
+extern int drm_name_info(struct seq_file *m, void *data);
+extern int drm_vm_info(struct seq_file *m, void *data);
+extern int drm_queues_info(struct seq_file *m, void *data);
+extern int drm_bufs_info(struct seq_file *m, void *data);
+extern int drm_vblank_info(struct seq_file *m, void *data);
+extern int drm_clients_info(struct seq_file *m, void* data);
+extern int drm_gem_name_info(struct seq_file *m, void *data);
+extern int drm_gem_object_info(struct seq_file *m, void* data);
+
+#if DRM_DEBUG_CODE
+extern int drm_vma_info(struct seq_file *m, void *data);
+#endif
+
 				/* Scatter Gather Support (drm_scatter.h) */
 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
-- 
cgit v1.2.3


From befb73c2322923766df7e36b51f407dbdc047eab Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Tue, 24 Feb 2009 14:02:13 -0500
Subject: drm/radeon: prep for r6xx/r7xx support

- add r6xx/r7xx regs and macros
- add r6xx/r7xx chip families
- fix register access for regs with offsets >= 0x10000

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_cp.c  |  14 +
 drivers/gpu/drm/radeon/radeon_drv.h | 504 +++++++++++++++++++++++++++++++++++-
 include/drm/radeon_drm.h            |   5 +-
 3 files changed, 521 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c
index 8338353e505b..e42b6a2a7e8e 100644
--- a/drivers/gpu/drm/radeon/radeon_cp.c
+++ b/drivers/gpu/drm/radeon/radeon_cp.c
@@ -89,6 +89,20 @@ u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index)
 		return RADEON_READ(RADEON_SCRATCH_REG0 + 4*index);
 }
 
+u32 RADEON_READ_MM(drm_radeon_private_t *dev_priv, int addr)
+{
+	u32 ret;
+
+	if (addr < 0x10000)
+		ret = DRM_READ32(dev_priv->mmio, addr);
+	else {
+		DRM_WRITE32(dev_priv->mmio, RADEON_MM_INDEX, addr);
+		ret = DRM_READ32(dev_priv->mmio, RADEON_MM_DATA);
+	}
+
+	return ret;
+}
+
 static u32 R500_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
 {
 	u32 ret;
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index aa078cbe38f3..9326c73976cf 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -134,6 +134,16 @@ enum radeon_family {
 	CHIP_RV560,
 	CHIP_RV570,
 	CHIP_R580,
+	CHIP_R600,
+	CHIP_RV610,
+	CHIP_RV630,
+	CHIP_RV620,
+	CHIP_RV635,
+	CHIP_RV670,
+	CHIP_RS780,
+	CHIP_RV770,
+	CHIP_RV730,
+	CHIP_RV710,
 	CHIP_LAST,
 };
 
@@ -317,6 +327,26 @@ typedef struct drm_radeon_private {
 	int num_gb_pipes;
 	int track_flush;
 	drm_local_map_t *mmio;
+
+	/* r6xx/r7xx pipe/shader config */
+	int r600_max_pipes;
+	int r600_max_tile_pipes;
+	int r600_max_simds;
+	int r600_max_backends;
+	int r600_max_gprs;
+	int r600_max_threads;
+	int r600_max_stack_entries;
+	int r600_max_hw_contexts;
+	int r600_max_gs_threads;
+	int r600_sx_max_export_size;
+	int r600_sx_max_export_pos_size;
+	int r600_sx_max_export_smx_size;
+	int r600_sq_num_cf_insts;
+	int r700_sx_num_of_sets;
+	int r700_sc_prim_fifo_size;
+	int r700_sc_hiz_tile_fifo_size;
+	int r700_sc_earlyz_tile_fifo_fize;
+
 } drm_radeon_private_t;
 
 typedef struct drm_radeon_buf_priv {
@@ -366,6 +396,7 @@ extern int radeon_engine_reset(struct drm_device *dev, void *data, struct drm_fi
 extern int radeon_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv);
 extern int radeon_cp_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv);
 extern u32 radeon_read_fb_location(drm_radeon_private_t *dev_priv);
+extern u32 RADEON_READ_MM(drm_radeon_private_t *dev_priv, int addr);
 
 extern void radeon_freelist_reset(struct drm_device * dev);
 extern struct drm_buf *radeon_freelist_get(struct drm_device * dev);
@@ -436,6 +467,8 @@ extern int r300_do_cp_cmdbuf(struct drm_device *dev,
 /* Register definitions, register access macros and drmAddMap constants
  * for Radeon kernel driver.
  */
+#define RADEON_MM_INDEX		        0x0000
+#define RADEON_MM_DATA		        0x0004
 
 #define RADEON_AGP_COMMAND		0x0f60
 #define RADEON_AGP_COMMAND_PCI_CONFIG   0x0060	/* offset in PCI config */
@@ -645,6 +678,19 @@ extern u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index);
 
 #define GET_SCRATCH(dev_priv, x) radeon_get_scratch(dev_priv, x)
 
+#define R600_SCRATCH_REG0		0x8500
+#define R600_SCRATCH_REG1		0x8504
+#define R600_SCRATCH_REG2		0x8508
+#define R600_SCRATCH_REG3		0x850c
+#define R600_SCRATCH_REG4		0x8510
+#define R600_SCRATCH_REG5		0x8514
+#define R600_SCRATCH_REG6		0x8518
+#define R600_SCRATCH_REG7		0x851c
+#define R600_SCRATCH_UMSK		0x8540
+#define R600_SCRATCH_ADDR		0x8544
+
+#define R600_SCRATCHOFF(x)		(R600_SCRATCH_REG_OFFSET + 4*(x))
+
 #define RADEON_GEN_INT_CNTL		0x0040
 #	define RADEON_CRTC_VBLANK_MASK		(1 << 0)
 #	define RADEON_CRTC2_VBLANK_MASK		(1 << 9)
@@ -924,6 +970,7 @@ extern u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index);
 #define RADEON_CP_RB_CNTL		0x0704
 #	define RADEON_BUF_SWAP_32BIT		(2 << 16)
 #	define RADEON_RB_NO_UPDATE		(1 << 27)
+#	define RADEON_RB_RPTR_WR_ENA		(1 << 31)
 #define RADEON_CP_RB_RPTR_ADDR		0x070c
 #define RADEON_CP_RB_RPTR		0x0710
 #define RADEON_CP_RB_WPTR		0x0714
@@ -985,6 +1032,14 @@ extern u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index);
 #	define RADEON_CNTL_BITBLT_MULTI		0x00009B00
 #	define RADEON_CNTL_SET_SCISSORS		0xC0001E00
 
+#	define R600_IT_INDIRECT_BUFFER		0x00003200
+#	define R600_IT_ME_INITIALIZE		0x00004400
+#	       define R600_ME_INITIALIZE_DEVICE_ID(x) ((x) << 16)
+#	define R600_IT_EVENT_WRITE		0x00004600
+#	define R600_IT_SET_CONFIG_REG		0x00006800
+#	define R600_SET_CONFIG_REG_OFFSET       0x00008000
+#	define R600_SET_CONFIG_REG_END          0x0000ac00
+
 #define RADEON_CP_PACKET_MASK		0xC0000000
 #define RADEON_CP_PACKET_COUNT_MASK	0x3fff0000
 #define RADEON_CP_PACKET0_REG_MASK	0x000007ff
@@ -1183,6 +1238,422 @@ extern u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index);
 #define R500_D1_VBLANK_INTERRUPT (1 << 4)
 #define R500_D2_VBLANK_INTERRUPT (1 << 5)
 
+/* R6xx/R7xx registers */
+#define R600_MC_VM_FB_LOCATION                                 0x2180
+#define R600_MC_VM_AGP_TOP                                     0x2184
+#define R600_MC_VM_AGP_BOT                                     0x2188
+#define R600_MC_VM_AGP_BASE                                    0x218c
+#define R600_MC_VM_SYSTEM_APERTURE_LOW_ADDR                    0x2190
+#define R600_MC_VM_SYSTEM_APERTURE_HIGH_ADDR                   0x2194
+#define R600_MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR                0x2198
+
+#define R700_MC_VM_FB_LOCATION                                 0x2024
+#define R700_MC_VM_AGP_TOP                                     0x2028
+#define R700_MC_VM_AGP_BOT                                     0x202c
+#define R700_MC_VM_AGP_BASE                                    0x2030
+#define R700_MC_VM_SYSTEM_APERTURE_LOW_ADDR                    0x2034
+#define R700_MC_VM_SYSTEM_APERTURE_HIGH_ADDR                   0x2038
+#define R700_MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR                0x203c
+
+#define R600_MCD_RD_A_CNTL                                     0x219c
+#define R600_MCD_RD_B_CNTL                                     0x21a0
+
+#define R600_MCD_WR_A_CNTL                                     0x21a4
+#define R600_MCD_WR_B_CNTL                                     0x21a8
+
+#define R600_MCD_RD_SYS_CNTL                                   0x2200
+#define R600_MCD_WR_SYS_CNTL                                   0x2214
+
+#define R600_MCD_RD_GFX_CNTL                                   0x21fc
+#define R600_MCD_RD_HDP_CNTL                                   0x2204
+#define R600_MCD_RD_PDMA_CNTL                                  0x2208
+#define R600_MCD_RD_SEM_CNTL                                   0x220c
+#define R600_MCD_WR_GFX_CNTL                                   0x2210
+#define R600_MCD_WR_HDP_CNTL                                   0x2218
+#define R600_MCD_WR_PDMA_CNTL                                  0x221c
+#define R600_MCD_WR_SEM_CNTL                                   0x2220
+
+#       define R600_MCD_L1_TLB                                 (1 << 0)
+#       define R600_MCD_L1_FRAG_PROC                           (1 << 1)
+#       define R600_MCD_L1_STRICT_ORDERING                     (1 << 2)
+
+#       define R600_MCD_SYSTEM_ACCESS_MODE_MASK                (3 << 6)
+#       define R600_MCD_SYSTEM_ACCESS_MODE_PA_ONLY             (0 << 6)
+#       define R600_MCD_SYSTEM_ACCESS_MODE_USE_SYS_MAP         (1 << 6)
+#       define R600_MCD_SYSTEM_ACCESS_MODE_IN_SYS              (2 << 6)
+#       define R600_MCD_SYSTEM_ACCESS_MODE_NOT_IN_SYS          (3 << 6)
+
+#       define R600_MCD_SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU    (0 << 8)
+#       define R600_MCD_SYSTEM_APERTURE_UNMAPPED_ACCESS_DEFAULT_PAGE (1 << 8)
+
+#       define R600_MCD_SEMAPHORE_MODE                         (1 << 10)
+#       define R600_MCD_WAIT_L2_QUERY                          (1 << 11)
+#       define R600_MCD_EFFECTIVE_L1_TLB_SIZE(x)               ((x) << 12)
+#       define R600_MCD_EFFECTIVE_L1_QUEUE_SIZE(x)             ((x) << 15)
+
+#define R700_MC_VM_MD_L1_TLB0_CNTL                             0x2654
+#define R700_MC_VM_MD_L1_TLB1_CNTL                             0x2658
+#define R700_MC_VM_MD_L1_TLB2_CNTL                             0x265c
+
+#define R700_MC_VM_MB_L1_TLB0_CNTL                             0x2234
+#define R700_MC_VM_MB_L1_TLB1_CNTL                             0x2238
+#define R700_MC_VM_MB_L1_TLB2_CNTL                             0x223c
+#define R700_MC_VM_MB_L1_TLB3_CNTL                             0x2240
+
+#       define R700_ENABLE_L1_TLB                              (1 << 0)
+#       define R700_ENABLE_L1_FRAGMENT_PROCESSING              (1 << 1)
+#       define R700_SYSTEM_ACCESS_MODE_IN_SYS                  (2 << 3)
+#       define R700_SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU  (0 << 5)
+#       define R700_EFFECTIVE_L1_TLB_SIZE(x)                   ((x) << 15)
+#       define R700_EFFECTIVE_L1_QUEUE_SIZE(x)                 ((x) << 18)
+
+#define R700_MC_ARB_RAMCFG                                     0x2760
+#       define R700_NOOFBANK_SHIFT                             0
+#       define R700_NOOFBANK_MASK                              0x3
+#       define R700_NOOFRANK_SHIFT                             2
+#       define R700_NOOFRANK_MASK                              0x1
+#       define R700_NOOFROWS_SHIFT                             3
+#       define R700_NOOFROWS_MASK                              0x7
+#       define R700_NOOFCOLS_SHIFT                             6
+#       define R700_NOOFCOLS_MASK                              0x3
+#       define R700_CHANSIZE_SHIFT                             8
+#       define R700_CHANSIZE_MASK                              0x1
+#       define R700_BURSTLENGTH_SHIFT                          9
+#       define R700_BURSTLENGTH_MASK                           0x1
+#define R600_RAMCFG                                            0x2408
+#       define R600_NOOFBANK_SHIFT                             0
+#       define R600_NOOFBANK_MASK                              0x1
+#       define R600_NOOFRANK_SHIFT                             1
+#       define R600_NOOFRANK_MASK                              0x1
+#       define R600_NOOFROWS_SHIFT                             2
+#       define R600_NOOFROWS_MASK                              0x7
+#       define R600_NOOFCOLS_SHIFT                             5
+#       define R600_NOOFCOLS_MASK                              0x3
+#       define R600_CHANSIZE_SHIFT                             7
+#       define R600_CHANSIZE_MASK                              0x1
+#       define R600_BURSTLENGTH_SHIFT                          8
+#       define R600_BURSTLENGTH_MASK                           0x1
+
+#define R600_VM_L2_CNTL                                        0x1400
+#       define R600_VM_L2_CACHE_EN                             (1 << 0)
+#       define R600_VM_L2_FRAG_PROC                            (1 << 1)
+#       define R600_VM_ENABLE_PTE_CACHE_LRU_W                  (1 << 9)
+#       define R600_VM_L2_CNTL_QUEUE_SIZE(x)                   ((x) << 13)
+#       define R700_VM_L2_CNTL_QUEUE_SIZE(x)                   ((x) << 14)
+
+#define R600_VM_L2_CNTL2                                       0x1404
+#       define R600_VM_L2_CNTL2_INVALIDATE_ALL_L1_TLBS         (1 << 0)
+#       define R600_VM_L2_CNTL2_INVALIDATE_L2_CACHE            (1 << 1)
+#define R600_VM_L2_CNTL3                                       0x1408
+#       define R600_VM_L2_CNTL3_BANK_SELECT_0(x)               ((x) << 0)
+#       define R600_VM_L2_CNTL3_BANK_SELECT_1(x)               ((x) << 5)
+#       define R600_VM_L2_CNTL3_CACHE_UPDATE_MODE(x)           ((x) << 10)
+#       define R700_VM_L2_CNTL3_BANK_SELECT(x)                 ((x) << 0)
+#       define R700_VM_L2_CNTL3_CACHE_UPDATE_MODE(x)           ((x) << 6)
+
+#define R600_VM_L2_STATUS                                      0x140c
+
+#define R600_VM_CONTEXT0_CNTL                                  0x1410
+#       define R600_VM_ENABLE_CONTEXT                          (1 << 0)
+#       define R600_VM_PAGE_TABLE_DEPTH_FLAT                   (0 << 1)
+
+#define R600_VM_CONTEXT0_CNTL2                                 0x1430
+#define R600_VM_CONTEXT0_REQUEST_RESPONSE                      0x1470
+#define R600_VM_CONTEXT0_INVALIDATION_LOW_ADDR                 0x1490
+#define R600_VM_CONTEXT0_INVALIDATION_HIGH_ADDR                0x14b0
+#define R600_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR                  0x1574
+#define R600_VM_CONTEXT0_PAGE_TABLE_START_ADDR                 0x1594
+#define R600_VM_CONTEXT0_PAGE_TABLE_END_ADDR                   0x15b4
+
+#define R700_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR                  0x153c
+#define R700_VM_CONTEXT0_PAGE_TABLE_START_ADDR                 0x155c
+#define R700_VM_CONTEXT0_PAGE_TABLE_END_ADDR                   0x157c
+
+#define R600_HDP_HOST_PATH_CNTL                                0x2c00
+
+#define R600_GRBM_CNTL                                         0x8000
+#       define R600_GRBM_READ_TIMEOUT(x)                       ((x) << 0)
+
+#define R600_GRBM_STATUS                                       0x8010
+#       define R600_CMDFIFO_AVAIL_MASK                         0x1f
+#       define R700_CMDFIFO_AVAIL_MASK                         0xf
+#       define R600_GUI_ACTIVE                                 (1 << 31)
+#define R600_GRBM_STATUS2                                      0x8014
+#define R600_GRBM_SOFT_RESET                                   0x8020
+#       define R600_SOFT_RESET_CP                              (1 << 0)
+#define R600_WAIT_UNTIL		                               0x8040
+
+#define R600_CP_SEM_WAIT_TIMER                                 0x85bc
+#define R600_CP_ME_CNTL                                        0x86d8
+#       define R600_CP_ME_HALT                                 (1 << 28)
+#define R600_CP_QUEUE_THRESHOLDS                               0x8760
+#       define R600_ROQ_IB1_START(x)                           ((x) << 0)
+#       define R600_ROQ_IB2_START(x)                           ((x) << 8)
+#define R600_CP_MEQ_THRESHOLDS                                 0x8764
+#       define R700_STQ_SPLIT(x)                               ((x) << 0)
+#       define R600_MEQ_END(x)                                 ((x) << 16)
+#       define R600_ROQ_END(x)                                 ((x) << 24)
+#define R600_CP_PERFMON_CNTL                                   0x87fc
+#define R600_CP_RB_BASE                                        0xc100
+#define R600_CP_RB_CNTL                                        0xc104
+#       define R600_RB_BUFSZ(x)                                ((x) << 0)
+#       define R600_RB_BLKSZ(x)                                ((x) << 8)
+#       define R600_RB_NO_UPDATE                               (1 << 27)
+#       define R600_RB_RPTR_WR_ENA                             (1 << 31)
+#define R600_CP_RB_RPTR_WR                                     0xc108
+#define R600_CP_RB_RPTR_ADDR                                   0xc10c
+#define R600_CP_RB_RPTR_ADDR_HI                                0xc110
+#define R600_CP_RB_WPTR                                        0xc114
+#define R600_CP_RB_WPTR_ADDR                                   0xc118
+#define R600_CP_RB_WPTR_ADDR_HI                                0xc11c
+#define R600_CP_RB_RPTR                                        0x8700
+#define R600_CP_RB_WPTR_DELAY                                  0x8704
+#define R600_CP_PFP_UCODE_ADDR                                 0xc150
+#define R600_CP_PFP_UCODE_DATA                                 0xc154
+#define R600_CP_ME_RAM_RADDR                                   0xc158
+#define R600_CP_ME_RAM_WADDR                                   0xc15c
+#define R600_CP_ME_RAM_DATA                                    0xc160
+#define R600_CP_DEBUG                                          0xc1fc
+
+#define R600_PA_CL_ENHANCE                                     0x8a14
+#       define R600_CLIP_VTX_REORDER_ENA                       (1 << 0)
+#       define R600_NUM_CLIP_SEQ(x)                            ((x) << 1)
+#define R600_PA_SC_LINE_STIPPLE_STATE                          0x8b10
+#define R600_PA_SC_MULTI_CHIP_CNTL                             0x8b20
+#define R700_PA_SC_FORCE_EOV_MAX_CNTS                          0x8b24
+#       define R700_FORCE_EOV_MAX_CLK_CNT(x)                   ((x) << 0)
+#       define R700_FORCE_EOV_MAX_REZ_CNT(x)                   ((x) << 16)
+#define R600_PA_SC_AA_SAMPLE_LOCS_2S                           0x8b40
+#define R600_PA_SC_AA_SAMPLE_LOCS_4S                           0x8b44
+#define R600_PA_SC_AA_SAMPLE_LOCS_8S_WD0                       0x8b48
+#define R600_PA_SC_AA_SAMPLE_LOCS_8S_WD1                       0x8b4c
+#       define R600_S0_X(x)                                    ((x) << 0)
+#       define R600_S0_Y(x)                                    ((x) << 4)
+#       define R600_S1_X(x)                                    ((x) << 8)
+#       define R600_S1_Y(x)                                    ((x) << 12)
+#       define R600_S2_X(x)                                    ((x) << 16)
+#       define R600_S2_Y(x)                                    ((x) << 20)
+#       define R600_S3_X(x)                                    ((x) << 24)
+#       define R600_S3_Y(x)                                    ((x) << 28)
+#       define R600_S4_X(x)                                    ((x) << 0)
+#       define R600_S4_Y(x)                                    ((x) << 4)
+#       define R600_S5_X(x)                                    ((x) << 8)
+#       define R600_S5_Y(x)                                    ((x) << 12)
+#       define R600_S6_X(x)                                    ((x) << 16)
+#       define R600_S6_Y(x)                                    ((x) << 20)
+#       define R600_S7_X(x)                                    ((x) << 24)
+#       define R600_S7_Y(x)                                    ((x) << 28)
+#define R600_PA_SC_FIFO_SIZE                                   0x8bd0
+#       define R600_SC_PRIM_FIFO_SIZE(x)                       ((x) << 0)
+#       define R600_SC_HIZ_TILE_FIFO_SIZE(x)                   ((x) << 8)
+#       define R600_SC_EARLYZ_TILE_FIFO_SIZE(x)                ((x) << 16)
+#define R700_PA_SC_FIFO_SIZE_R7XX                              0x8bcc
+#       define R700_SC_PRIM_FIFO_SIZE(x)                       ((x) << 0)
+#       define R700_SC_HIZ_TILE_FIFO_SIZE(x)                   ((x) << 12)
+#       define R700_SC_EARLYZ_TILE_FIFO_SIZE(x)                ((x) << 20)
+#define R600_PA_SC_ENHANCE                                     0x8bf0
+#       define R600_FORCE_EOV_MAX_CLK_CNT(x)                   ((x) << 0)
+#       define R600_FORCE_EOV_MAX_TILE_CNT(x)                  ((x) << 12)
+#define R600_PA_SC_CLIPRECT_RULE                               0x2820c
+#define R700_PA_SC_EDGERULE                                    0x28230
+#define R600_PA_SC_LINE_STIPPLE                                0x28a0c
+#define R600_PA_SC_MODE_CNTL                                   0x28a4c
+#define R600_PA_SC_AA_CONFIG                                   0x28c04
+
+#define R600_SX_EXPORT_BUFFER_SIZES                            0x900c
+#       define R600_COLOR_BUFFER_SIZE(x)                       ((x) << 0)
+#       define R600_POSITION_BUFFER_SIZE(x)                    ((x) << 8)
+#       define R600_SMX_BUFFER_SIZE(x)                         ((x) << 16)
+#define R600_SX_DEBUG_1                                        0x9054
+#       define R600_SMX_EVENT_RELEASE                          (1 << 0)
+#       define R600_ENABLE_NEW_SMX_ADDRESS                     (1 << 16)
+#define R700_SX_DEBUG_1                                        0x9058
+#       define R700_ENABLE_NEW_SMX_ADDRESS                     (1 << 16)
+#define R600_SX_MISC                                           0x28350
+
+#define R600_DB_DEBUG                                          0x9830
+#       define R600_PREZ_MUST_WAIT_FOR_POSTZ_DONE              (1 << 31)
+#define R600_DB_WATERMARKS                                     0x9838
+#       define R600_DEPTH_FREE(x)                              ((x) << 0)
+#       define R600_DEPTH_FLUSH(x)                             ((x) << 5)
+#       define R600_DEPTH_PENDING_FREE(x)                      ((x) << 15)
+#       define R600_DEPTH_CACHELINE_FREE(x)                    ((x) << 20)
+#define R700_DB_DEBUG3                                         0x98b0
+#       define R700_DB_CLK_OFF_DELAY(x)                        ((x) << 11)
+#define RV700_DB_DEBUG4                                        0x9b8c
+#       define RV700_DISABLE_TILE_COVERED_FOR_PS_ITER          (1 << 6)
+
+#define R600_VGT_CACHE_INVALIDATION                            0x88c4
+#       define R600_CACHE_INVALIDATION(x)                      ((x) << 0)
+#       define R600_VC_ONLY                                    0
+#       define R600_TC_ONLY                                    1
+#       define R600_VC_AND_TC                                  2
+#       define R700_AUTO_INVLD_EN(x)                           ((x) << 6)
+#       define R700_NO_AUTO                                    0
+#       define R700_ES_AUTO                                    1
+#       define R700_GS_AUTO                                    2
+#       define R700_ES_AND_GS_AUTO                             3
+#define R600_VGT_GS_PER_ES                                     0x88c8
+#define R600_VGT_ES_PER_GS                                     0x88cc
+#define R600_VGT_GS_PER_VS                                     0x88e8
+#define R600_VGT_GS_VERTEX_REUSE                               0x88d4
+#define R600_VGT_NUM_INSTANCES                                 0x8974
+#define R600_VGT_STRMOUT_EN                                    0x28ab0
+#define R600_VGT_EVENT_INITIATOR                               0x28a90
+#       define R600_CACHE_FLUSH_AND_INV_EVENT                  (0x16 << 0)
+#define R600_VGT_VERTEX_REUSE_BLOCK_CNTL                       0x28c58
+#       define R600_VTX_REUSE_DEPTH_MASK                       0xff
+#define R600_VGT_OUT_DEALLOC_CNTL                              0x28c5c
+#       define R600_DEALLOC_DIST_MASK                          0x7f
+
+#define R600_CB_COLOR0_BASE                                    0x28040
+#define R600_CB_COLOR1_BASE                                    0x28044
+#define R600_CB_COLOR2_BASE                                    0x28048
+#define R600_CB_COLOR3_BASE                                    0x2804c
+#define R600_CB_COLOR4_BASE                                    0x28050
+#define R600_CB_COLOR5_BASE                                    0x28054
+#define R600_CB_COLOR6_BASE                                    0x28058
+#define R600_CB_COLOR7_BASE                                    0x2805c
+#define R600_CB_COLOR7_FRAG                                    0x280fc
+
+#define R600_TC_CNTL                                           0x9608
+#       define R600_TC_L2_SIZE(x)                              ((x) << 5)
+#       define R600_L2_DISABLE_LATE_HIT                        (1 << 9)
+
+#define R600_ARB_POP                                           0x2418
+#       define R600_ENABLE_TC128                               (1 << 30)
+#define R600_ARB_GDEC_RD_CNTL                                  0x246c
+
+#define R600_TA_CNTL_AUX                                       0x9508
+#       define R600_DISABLE_CUBE_WRAP                          (1 << 0)
+#       define R600_DISABLE_CUBE_ANISO                         (1 << 1)
+#       define R700_GETLOD_SELECT(x)                           ((x) << 2)
+#       define R600_SYNC_GRADIENT                              (1 << 24)
+#       define R600_SYNC_WALKER                                (1 << 25)
+#       define R600_SYNC_ALIGNER                               (1 << 26)
+#       define R600_BILINEAR_PRECISION_6_BIT                   (0 << 31)
+#       define R600_BILINEAR_PRECISION_8_BIT                   (1 << 31)
+
+#define R700_TCP_CNTL                                          0x9610
+
+#define R600_SMX_DC_CTL0                                       0xa020
+#       define R700_USE_HASH_FUNCTION                          (1 << 0)
+#       define R700_CACHE_DEPTH(x)                             ((x) << 1)
+#       define R700_FLUSH_ALL_ON_EVENT                         (1 << 10)
+#       define R700_STALL_ON_EVENT                             (1 << 11)
+#define R700_SMX_EVENT_CTL                                     0xa02c
+#       define R700_ES_FLUSH_CTL(x)                            ((x) << 0)
+#       define R700_GS_FLUSH_CTL(x)                            ((x) << 3)
+#       define R700_ACK_FLUSH_CTL(x)                           ((x) << 6)
+#       define R700_SYNC_FLUSH_CTL                             (1 << 8)
+
+#define R600_SQ_CONFIG                                         0x8c00
+#       define R600_VC_ENABLE                                  (1 << 0)
+#       define R600_EXPORT_SRC_C                               (1 << 1)
+#       define R600_DX9_CONSTS                                 (1 << 2)
+#       define R600_ALU_INST_PREFER_VECTOR                     (1 << 3)
+#       define R600_DX10_CLAMP                                 (1 << 4)
+#       define R600_CLAUSE_SEQ_PRIO(x)                         ((x) << 8)
+#       define R600_PS_PRIO(x)                                 ((x) << 24)
+#       define R600_VS_PRIO(x)                                 ((x) << 26)
+#       define R600_GS_PRIO(x)                                 ((x) << 28)
+#       define R600_ES_PRIO(x)                                 ((x) << 30)
+#define R600_SQ_GPR_RESOURCE_MGMT_1                            0x8c04
+#       define R600_NUM_PS_GPRS(x)                             ((x) << 0)
+#       define R600_NUM_VS_GPRS(x)                             ((x) << 16)
+#       define R700_DYN_GPR_ENABLE                             (1 << 27)
+#       define R600_NUM_CLAUSE_TEMP_GPRS(x)                    ((x) << 28)
+#define R600_SQ_GPR_RESOURCE_MGMT_2                            0x8c08
+#       define R600_NUM_GS_GPRS(x)                             ((x) << 0)
+#       define R600_NUM_ES_GPRS(x)                             ((x) << 16)
+#define R600_SQ_THREAD_RESOURCE_MGMT                           0x8c0c
+#       define R600_NUM_PS_THREADS(x)                          ((x) << 0)
+#       define R600_NUM_VS_THREADS(x)                          ((x) << 8)
+#       define R600_NUM_GS_THREADS(x)                          ((x) << 16)
+#       define R600_NUM_ES_THREADS(x)                          ((x) << 24)
+#define R600_SQ_STACK_RESOURCE_MGMT_1                          0x8c10
+#       define R600_NUM_PS_STACK_ENTRIES(x)                    ((x) << 0)
+#       define R600_NUM_VS_STACK_ENTRIES(x)                    ((x) << 16)
+#define R600_SQ_STACK_RESOURCE_MGMT_2                          0x8c14
+#       define R600_NUM_GS_STACK_ENTRIES(x)                    ((x) << 0)
+#       define R600_NUM_ES_STACK_ENTRIES(x)                    ((x) << 16)
+#define R600_SQ_MS_FIFO_SIZES                                  0x8cf0
+#       define R600_CACHE_FIFO_SIZE(x)                         ((x) << 0)
+#       define R600_FETCH_FIFO_HIWATER(x)                      ((x) << 8)
+#       define R600_DONE_FIFO_HIWATER(x)                       ((x) << 16)
+#       define R600_ALU_UPDATE_FIFO_HIWATER(x)                 ((x) << 24)
+#define R700_SQ_DYN_GPR_SIZE_SIMD_AB_0                         0x8db0
+#       define R700_SIMDA_RING0(x)                             ((x) << 0)
+#       define R700_SIMDA_RING1(x)                             ((x) << 8)
+#       define R700_SIMDB_RING0(x)                             ((x) << 16)
+#       define R700_SIMDB_RING1(x)                             ((x) << 24)
+#define R700_SQ_DYN_GPR_SIZE_SIMD_AB_1                         0x8db4
+#define R700_SQ_DYN_GPR_SIZE_SIMD_AB_2                         0x8db8
+#define R700_SQ_DYN_GPR_SIZE_SIMD_AB_3                         0x8dbc
+#define R700_SQ_DYN_GPR_SIZE_SIMD_AB_4                         0x8dc0
+#define R700_SQ_DYN_GPR_SIZE_SIMD_AB_5                         0x8dc4
+#define R700_SQ_DYN_GPR_SIZE_SIMD_AB_6                         0x8dc8
+#define R700_SQ_DYN_GPR_SIZE_SIMD_AB_7                         0x8dcc
+
+#define R600_SPI_PS_IN_CONTROL_0                               0x286cc
+#       define R600_NUM_INTERP(x)                              ((x) << 0)
+#       define R600_POSITION_ENA                               (1 << 8)
+#       define R600_POSITION_CENTROID                          (1 << 9)
+#       define R600_POSITION_ADDR(x)                           ((x) << 10)
+#       define R600_PARAM_GEN(x)                               ((x) << 15)
+#       define R600_PARAM_GEN_ADDR(x)                          ((x) << 19)
+#       define R600_BARYC_SAMPLE_CNTL(x)                       ((x) << 26)
+#       define R600_PERSP_GRADIENT_ENA                         (1 << 28)
+#       define R600_LINEAR_GRADIENT_ENA                        (1 << 29)
+#       define R600_POSITION_SAMPLE                            (1 << 30)
+#       define R600_BARYC_AT_SAMPLE_ENA                        (1 << 31)
+#define R600_SPI_PS_IN_CONTROL_1                               0x286d0
+#       define R600_GEN_INDEX_PIX                              (1 << 0)
+#       define R600_GEN_INDEX_PIX_ADDR(x)                      ((x) << 1)
+#       define R600_FRONT_FACE_ENA                             (1 << 8)
+#       define R600_FRONT_FACE_CHAN(x)                         ((x) << 9)
+#       define R600_FRONT_FACE_ALL_BITS                        (1 << 11)
+#       define R600_FRONT_FACE_ADDR(x)                         ((x) << 12)
+#       define R600_FOG_ADDR(x)                                ((x) << 17)
+#       define R600_FIXED_PT_POSITION_ENA                      (1 << 24)
+#       define R600_FIXED_PT_POSITION_ADDR(x)                  ((x) << 25)
+#       define R700_POSITION_ULC                               (1 << 30)
+#define R600_SPI_INPUT_Z                                       0x286d8
+
+#define R600_SPI_CONFIG_CNTL                                   0x9100
+#       define R600_GPR_WRITE_PRIORITY(x)                      ((x) << 0)
+#       define R600_DISABLE_INTERP_1                           (1 << 5)
+#define R600_SPI_CONFIG_CNTL_1                                 0x913c
+#       define R600_VTX_DONE_DELAY(x)                          ((x) << 0)
+#       define R600_INTERP_ONE_PRIM_PER_ROW                    (1 << 4)
+
+#define R600_GB_TILING_CONFIG                                  0x98f0
+#       define R600_PIPE_TILING(x)                             ((x) << 1)
+#       define R600_BANK_TILING(x)                             ((x) << 4)
+#       define R600_GROUP_SIZE(x)                              ((x) << 6)
+#       define R600_ROW_TILING(x)                              ((x) << 8)
+#       define R600_BANK_SWAPS(x)                              ((x) << 11)
+#       define R600_SAMPLE_SPLIT(x)                            ((x) << 14)
+#       define R600_BACKEND_MAP(x)                             ((x) << 16)
+#define R600_DCP_TILING_CONFIG                                 0x6ca0
+#define R600_HDP_TILING_CONFIG                                 0x2f3c
+
+#define R600_CC_RB_BACKEND_DISABLE                             0x98f4
+#define R700_CC_SYS_RB_BACKEND_DISABLE                         0x3f88
+#       define R600_BACKEND_DISABLE(x)                         ((x) << 16)
+
+#define R600_CC_GC_SHADER_PIPE_CONFIG                          0x8950
+#define R600_GC_USER_SHADER_PIPE_CONFIG                        0x8954
+#       define R600_INACTIVE_QD_PIPES(x)                       ((x) << 8)
+#       define R600_INACTIVE_QD_PIPES_MASK                     (0xff << 8)
+#       define R600_INACTIVE_SIMDS(x)                          ((x) << 16)
+#       define R600_INACTIVE_SIMDS_MASK                        (0xff << 16)
+
+#define R700_CGTS_SYS_TCC_DISABLE                              0x3f90
+#define R700_CGTS_USER_SYS_TCC_DISABLE                         0x3f94
+#define R700_CGTS_TCC_DISABLE                                  0x9148
+#define R700_CGTS_USER_TCC_DISABLE                             0x914c
+
 /* Constants */
 #define RADEON_MAX_USEC_TIMEOUT		100000	/* 100 ms */
 
@@ -1192,6 +1663,11 @@ extern u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index);
 #define RADEON_LAST_SWI_REG		RADEON_SCRATCH_REG3
 #define RADEON_LAST_DISPATCH		1
 
+#define R600_LAST_FRAME_REG		R600_SCRATCH_REG0
+#define R600_LAST_DISPATCH_REG	        R600_SCRATCH_REG1
+#define R600_LAST_CLEAR_REG		R600_SCRATCH_REG2
+#define R600_LAST_SWI_REG		R600_SCRATCH_REG3
+
 #define RADEON_MAX_VB_AGE		0x7fffffff
 #define RADEON_MAX_VB_VERTS		(0xffff)
 
@@ -1200,7 +1676,15 @@ extern u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index);
 #define RADEON_PCIGART_TABLE_SIZE      (32*1024)
 
 #define RADEON_READ(reg)	DRM_READ32(  dev_priv->mmio, (reg) )
-#define RADEON_WRITE(reg,val)	DRM_WRITE32( dev_priv->mmio, (reg), (val) )
+#define RADEON_WRITE(reg, val)                                          \
+do {									\
+	if (reg < 0x10000) {				                \
+		DRM_WRITE32(dev_priv->mmio, (reg), (val));		\
+	} else {                                                        \
+		DRM_WRITE32(dev_priv->mmio, RADEON_MM_INDEX, (reg));	\
+		DRM_WRITE32(dev_priv->mmio, RADEON_MM_DATA, (val));	\
+	}                                                               \
+} while (0)
 #define RADEON_READ8(reg)	DRM_READ8(  dev_priv->mmio, (reg) )
 #define RADEON_WRITE8(reg,val)	DRM_WRITE8( dev_priv->mmio, (reg), (val) )
 
@@ -1370,6 +1854,24 @@ do {								\
 	OUT_RING( age );						\
 } while (0)
 
+#define R600_DISPATCH_AGE(age) do {					\
+	OUT_RING(CP_PACKET3(R600_IT_SET_CONFIG_REG, 1));		\
+	OUT_RING((R600_LAST_DISPATCH_REG - R600_SET_CONFIG_REG_OFFSET) >> 2);  \
+	OUT_RING(age);							\
+} while (0)
+
+#define R600_FRAME_AGE(age) do {					\
+	OUT_RING(CP_PACKET3(R600_IT_SET_CONFIG_REG, 1));		\
+	OUT_RING((R600_LAST_FRAME_REG - R600_SET_CONFIG_REG_OFFSET) >> 2);  \
+	OUT_RING(age);							\
+} while (0)
+
+#define R600_CLEAR_AGE(age) do {					\
+	OUT_RING(CP_PACKET3(R600_IT_SET_CONFIG_REG, 1));		\
+	OUT_RING((R600_LAST_CLEAR_REG - R600_SET_CONFIG_REG_OFFSET) >> 2);  \
+	OUT_RING(age);							\
+} while (0)
+
 /* ================================================================
  * Ring control
  */
diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index 73ff51f12311..937a275cbb9a 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -304,6 +304,8 @@ typedef union {
 
 #define RADEON_SCRATCH_REG_OFFSET	32
 
+#define R600_SCRATCH_REG_OFFSET         256
+
 #define RADEON_NR_SAREA_CLIPRECTS	12
 
 /* There are 2 heaps (local/GART).  Each region within a heap is a
@@ -526,7 +528,8 @@ typedef struct drm_radeon_init {
 		RADEON_INIT_CP = 0x01,
 		RADEON_CLEANUP_CP = 0x02,
 		RADEON_INIT_R200_CP = 0x03,
-		RADEON_INIT_R300_CP = 0x04
+		RADEON_INIT_R300_CP = 0x04,
+		RADEON_INIT_R600_CP = 0x05
 	} func;
 	unsigned long sarea_priv_offset;
 	int is_pci;
-- 
cgit v1.2.3


From 7335aafa30ecf39ede7f24bd2036dfbf4c25f269 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Tue, 24 Feb 2009 17:13:42 -0500
Subject: radeon: add R6xx/R7xx pci ids

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 include/drm/drm_pciids.h | 108 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)

(limited to 'include')

diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 5165f240aa68..8bcacc2cdd2f 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -243,6 +243,114 @@
 	{0x1002, 0x796d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
 	{0x1002, 0x796e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
 	{0x1002, 0x796f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
+	{0x1002, 0x9400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9402, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9403, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x940A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x940B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x940F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9441, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9442, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9444, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x944A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x944B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x944C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x944E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9450, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9452, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9456, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x945A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x945B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x946A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x946B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x947A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x947B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9480, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9487, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9488, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9489, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x948F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9490, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9491, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9498, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x949C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x949E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x949F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94C9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94CB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94CC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x94CD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV610|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9501, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9504, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9505, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9506, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9507, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9508, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9509, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x950F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9511, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9515, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9517, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9519, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV670|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9540, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9541, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9542, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x954E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x954F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9552, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9553, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9555, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9580, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9581, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9583, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9586, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9587, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9588, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9589, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x958A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x958B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x958C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x958D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x958E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x958F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9590, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9591, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9593, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9595, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9596, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9597, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9599, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x959B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV635|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95C0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95C5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95C6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95C7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95C9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95C2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95C4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95CC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95CD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95CE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x95CF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV620|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x9610, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+	{0x1002, 0x9611, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+	{0x1002, 0x9612, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+	{0x1002, 0x9613, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+	{0x1002, 0x9614, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0, 0, 0}
 
 #define r128_PCI_IDS \
-- 
cgit v1.2.3


From 8ced9c75160947d2235fba75de9413e087e1171a Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Wed, 25 Feb 2009 17:02:19 -0500
Subject: radeon: add RS600 pci ids

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 include/drm/drm_pciids.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'include')

diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 8bcacc2cdd2f..c2fd3c58283a 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -239,6 +239,9 @@
 	{0x1002, 0x7835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x791e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS690|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
 	{0x1002, 0x791f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS690|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
+	{0x1002, 0x793f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS600|RADEON_IS_IGP|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x7941, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS600|RADEON_IS_IGP|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x7942, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS600|RADEON_IS_IGP|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x796c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
 	{0x1002, 0x796d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
 	{0x1002, 0x796e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
-- 
cgit v1.2.3


From 87f0da55353e23826a54bff57c457a13b97d18f1 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Thu, 26 Feb 2009 10:12:10 +1000
Subject: drm: add DRM_READ/WRITE64 wrappers around readq/writeq.

The readq/writeq stuff is from Dave Miller, and he
warns users to be careful about using these. Plans are only
r600 to use it so far.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 include/drm/drm_os_linux.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'include')

diff --git a/include/drm/drm_os_linux.h b/include/drm/drm_os_linux.h
index 8dbd2572b7c3..013551d03c03 100644
--- a/include/drm/drm_os_linux.h
+++ b/include/drm/drm_os_linux.h
@@ -6,6 +6,19 @@
 #include <linux/interrupt.h>	/* For task queue support */
 #include <linux/delay.h>
 
+#ifndef readq
+static u64 readq(void __iomem *reg)
+{
+	return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32);
+}
+
+static void writeq(u64 val, void __iomem *reg)
+{
+	writel(val & 0xffffffff, reg);
+	writel(val >> 32, reg + 0x4UL);
+}
+#endif
+
 /** Current process ID */
 #define DRM_CURRENTPID			task_pid_nr(current)
 #define DRM_SUSER(p)			capable(CAP_SYS_ADMIN)
@@ -23,6 +36,12 @@
 /** Write a dword into a MMIO region */
 #define DRM_WRITE32(map, offset, val)	writel(val, ((void __iomem *)(map)->handle) + (offset))
 /** Read memory barrier */
+
+/** Read a qword from a MMIO region - be careful using these unless you really understand them */
+#define DRM_READ64(map, offset)		readq(((void __iomem *)(map)->handle) + (offset))
+/** Write a qword into a MMIO region */
+#define DRM_WRITE64(map, offset, val)	writeq(val, ((void __iomem *)(map)->handle) + (offset))
+
 #define DRM_READMEMORYBARRIER()		rmb()
 /** Write memory barrier */
 #define DRM_WRITEMEMORYBARRIER()	wmb()
-- 
cgit v1.2.3


From 3dd3d46b78c22503957230ca5981849b7bb29b9a Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 9 Mar 2009 21:48:32 +0100
Subject: genirq: remove unused hw_irq_controller typedef

hw_irq_controller is unused. Remove the typedef

Impact: cleanup

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 include/linux/irq.h | 1 -
 1 file changed, 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 737eafbc1f3d..7c07a09931db 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -226,7 +226,6 @@ irq_remap_to_desc(unsigned int irq, struct irq_desc *desc)
  * Migration helpers for obsolete names, they will go away:
  */
 #define hw_interrupt_type	irq_chip
-typedef struct irq_chip		hw_irq_controller;
 #define no_irq_type		no_irq_chip
 typedef struct irq_desc		irq_desc_t;
 
-- 
cgit v1.2.3


From bedd30d986a05e32dc3eab874e4b9ed8a38058bb Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 30 Sep 2008 23:14:27 +0200
Subject: genirq: make irqreturn_t an enum

Impact: cleanup

Remove the 2.4 compabiliy cruft

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Peter Zijlstra <peterz@infradead.org>
---
 include/linux/irq.h       |  4 ++--
 include/linux/irqreturn.h | 28 ++++++++++------------------
 2 files changed, 12 insertions(+), 20 deletions(-)

(limited to 'include')

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 7c07a09931db..19770923bcb0 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -280,7 +280,7 @@ static inline int irq_balancing_disabled(unsigned int irq)
 }
 
 /* Handle irq action chains: */
-extern int handle_IRQ_event(unsigned int irq, struct irqaction *action);
+extern irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action);
 
 /*
  * Built-in IRQ handlers for various IRQ types,
@@ -325,7 +325,7 @@ static inline void generic_handle_irq(unsigned int irq)
 
 /* Handling of unhandled and spurious interrupts: */
 extern void note_interrupt(unsigned int irq, struct irq_desc *desc,
-			   int action_ret);
+			   irqreturn_t action_ret);
 
 /* Resending of interrupts :*/
 void check_irq_resend(struct irq_desc *desc, unsigned int irq);
diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h
index 881883c2009d..c5584ca5b8c9 100644
--- a/include/linux/irqreturn.h
+++ b/include/linux/irqreturn.h
@@ -1,25 +1,17 @@
-/* irqreturn.h */
 #ifndef _LINUX_IRQRETURN_H
 #define _LINUX_IRQRETURN_H
 
-/*
- * For 2.4.x compatibility, 2.4.x can use
- *
- *	typedef void irqreturn_t;
- *	#define IRQ_NONE
- *	#define IRQ_HANDLED
- *	#define IRQ_RETVAL(x)
- *
- * To mix old-style and new-style irq handler returns.
- *
- * IRQ_NONE means we didn't handle it.
- * IRQ_HANDLED means that we did have a valid interrupt and handled it.
- * IRQ_RETVAL(x) selects on the two depending on x being non-zero (for handled)
+/**
+ * enum irqreturn
+ * @IRQ_NONE		interrupt was not from this device
+ * @IRQ_HANDLED		interrupt was handled by this device
  */
-typedef int irqreturn_t;
+enum irqreturn {
+	IRQ_NONE,
+	IRQ_HANDLED,
+};
 
-#define IRQ_NONE	(0)
-#define IRQ_HANDLED	(1)
-#define IRQ_RETVAL(x)	((x) != 0)
+typedef enum irqreturn irqreturn_t;
+#define IRQ_RETVAL(x)	((x) != IRQ_NONE)
 
 #endif
-- 
cgit v1.2.3


From a9d0a1a38352c4fb8946e73b3e42ba4ada29e733 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 3 Mar 2009 16:58:16 +0100
Subject: genirq: add doc to struct irqaction

Impact: documentation

struct irqaction is not documented. Add kernel doc comments and add
interrupt.h to the genirq docbook.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 Documentation/DocBook/genericirq.tmpl |  1 +
 include/linux/interrupt.h             | 11 +++++++++++
 2 files changed, 12 insertions(+)

(limited to 'include')

diff --git a/Documentation/DocBook/genericirq.tmpl b/Documentation/DocBook/genericirq.tmpl
index 3a882d9a90a9..c671a0168096 100644
--- a/Documentation/DocBook/genericirq.tmpl
+++ b/Documentation/DocBook/genericirq.tmpl
@@ -440,6 +440,7 @@ desc->chip->end();
      used in the generic IRQ layer.
      </para>
 !Iinclude/linux/irq.h
+!Iinclude/linux/interrupt.h
   </chapter>
 
   <chapter id="pubfunctions">
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 468e3a25a4a1..91658d076598 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -61,6 +61,17 @@
 
 typedef irqreturn_t (*irq_handler_t)(int, void *);
 
+/**
+ * struct irqaction - per interrupt action descriptor
+ * @handler:	interrupt handler function
+ * @flags:	flags (see IRQF_* above)
+ * @mask:	no comment as it is useless and about to be removed
+ * @name:	name of the device
+ * @dev_id:	cookie to identify the device
+ * @next:	pointer to the next irqaction for shared interrupts
+ * @irq:	interrupt number
+ * @dir:	pointer to the proc/irq/NN/name entry
+ */
 struct irqaction {
 	irq_handler_t handler;
 	unsigned long flags;
-- 
cgit v1.2.3


From 4893d39e865b2897bf9fcd329697d37032d853a1 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Wed, 11 Mar 2009 09:48:26 +0000
Subject: Network Drop Monitor: Add trace declaration for skb frees

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>

 include/trace/skb.h   |    8 ++++++++
 net/core/Makefile     |    2 ++
 net/core/net-traces.c |   29 +++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+)
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/trace/skb.h   |  8 ++++++++
 net/core/Makefile     |  2 ++
 net/core/net-traces.c | 29 +++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+)
 create mode 100644 include/trace/skb.h
 create mode 100644 net/core/net-traces.c

(limited to 'include')

diff --git a/include/trace/skb.h b/include/trace/skb.h
new file mode 100644
index 000000000000..3aa864697c09
--- /dev/null
+++ b/include/trace/skb.h
@@ -0,0 +1,8 @@
+#ifndef _TRACE_SKB_H_
+#define _TRACE_SKB_H_
+
+DECLARE_TRACE(kfree_skb,
+	TPPROTO(struct sk_buff *skb, void *location),
+	TPARGS(skb, location));
+
+#endif
diff --git a/net/core/Makefile b/net/core/Makefile
index 26a37cb31923..d47092bc525c 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -17,3 +17,5 @@ obj-$(CONFIG_NET_PKTGEN) += pktgen.o
 obj-$(CONFIG_NETPOLL) += netpoll.o
 obj-$(CONFIG_NET_DMA) += user_dma.o
 obj-$(CONFIG_FIB_RULES) += fib_rules.o
+obj-$(CONFIG_TRACEPOINTS) += net-traces.o
+
diff --git a/net/core/net-traces.c b/net/core/net-traces.c
new file mode 100644
index 000000000000..c8fb45665e4f
--- /dev/null
+++ b/net/core/net-traces.c
@@ -0,0 +1,29 @@
+/*
+ * consolidates trace point definitions
+ *
+ * Copyright (C) 2009 Neil Horman <nhorman@tuxdriver.com>
+ */
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/string.h>
+#include <linux/if_arp.h>
+#include <linux/inetdevice.h>
+#include <linux/inet.h>
+#include <linux/interrupt.h>
+#include <linux/netpoll.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/rcupdate.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+#include <linux/netlink.h>
+#include <linux/net_dropmon.h>
+#include <trace/skb.h>
+
+#include <asm/unaligned.h>
+#include <asm/bitops.h>
+
+
+DEFINE_TRACE(kfree_skb);
+EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb);
-- 
cgit v1.2.3


From ead2ceb0ec9f85cff19c43b5cdb2f8a054484431 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Wed, 11 Mar 2009 09:49:55 +0000
Subject: Network Drop Monitor: Adding kfree_skb_clean for non-drops and
 modifying end-of-line points for skbs

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>

 include/linux/skbuff.h |    4 +++-
 net/core/datagram.c    |    2 +-
 net/core/skbuff.c      |   22 ++++++++++++++++++++++
 net/ipv4/arp.c         |    2 +-
 net/ipv4/udp.c         |    2 +-
 net/packet/af_packet.c |    2 +-
 6 files changed, 29 insertions(+), 5 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h |  4 +++-
 net/core/datagram.c    |  2 +-
 net/core/skbuff.c      | 22 ++++++++++++++++++++++
 net/ipv4/arp.c         |  2 +-
 net/ipv4/udp.c         |  2 +-
 net/packet/af_packet.c |  2 +-
 6 files changed, 29 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1f659e8c2b88..1fbab2ae613c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -421,6 +421,7 @@ extern void skb_dma_unmap(struct device *dev, struct sk_buff *skb,
 #endif
 
 extern void kfree_skb(struct sk_buff *skb);
+extern void consume_skb(struct sk_buff *skb);
 extern void	       __kfree_skb(struct sk_buff *skb);
 extern struct sk_buff *__alloc_skb(unsigned int size,
 				   gfp_t priority, int fclone, int node);
@@ -459,7 +460,8 @@ extern int	       skb_to_sgvec(struct sk_buff *skb,
 extern int	       skb_cow_data(struct sk_buff *skb, int tailbits,
 				    struct sk_buff **trailer);
 extern int	       skb_pad(struct sk_buff *skb, int pad);
-#define dev_kfree_skb(a)	kfree_skb(a)
+#define dev_kfree_skb(a)	consume_skb(a)
+#define dev_consume_skb(a)	kfree_skb_clean(a)
 extern void	      skb_over_panic(struct sk_buff *skb, int len,
 				     void *here);
 extern void	      skb_under_panic(struct sk_buff *skb, int len,
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 5e2ac0c4b07c..d0de644b378d 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -208,7 +208,7 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags,
 
 void skb_free_datagram(struct sock *sk, struct sk_buff *skb)
 {
-	kfree_skb(skb);
+	consume_skb(skb);
 	sk_mem_reclaim_partial(sk);
 }
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index e5e2111a397d..6acbf9e79eb1 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -65,6 +65,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
+#include <trace/skb.h>
 
 #include "kmap_skb.h"
 
@@ -442,10 +443,31 @@ void kfree_skb(struct sk_buff *skb)
 		smp_rmb();
 	else if (likely(!atomic_dec_and_test(&skb->users)))
 		return;
+	trace_kfree_skb(skb, __builtin_return_address(0));
 	__kfree_skb(skb);
 }
 EXPORT_SYMBOL(kfree_skb);
 
+/**
+ *	consume_skb - free an skbuff
+ *	@skb: buffer to free
+ *
+ *	Drop a ref to the buffer and free it if the usage count has hit zero
+ *	Functions identically to kfree_skb, but kfree_skb assumes that the frame
+ *	is being dropped after a failure and notes that
+ */
+void consume_skb(struct sk_buff *skb)
+{
+	if (unlikely(!skb))
+		return;
+	if (likely(atomic_read(&skb->users) == 1))
+		smp_rmb();
+	else if (likely(!atomic_dec_and_test(&skb->users)))
+		return;
+	__kfree_skb(skb);
+}
+EXPORT_SYMBOL(consume_skb);
+
 /**
  *	skb_recycle_check - check if skb can be reused for receive
  *	@skb: buffer
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 3d67d1ffed77..9c220323f353 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -892,7 +892,7 @@ static int arp_process(struct sk_buff *skb)
 out:
 	if (in_dev)
 		in_dev_put(in_dev);
-	kfree_skb(skb);
+	consume_skb(skb);
 	return 0;
 }
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 4bd178a111d5..05b7abb99f69 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1184,7 +1184,7 @@ static int __udp4_lib_mcast_deliver(struct net *net, struct sk_buff *skb,
 			sk = sknext;
 		} while (sknext);
 	} else
-		kfree_skb(skb);
+		consume_skb(skb);
 	spin_unlock(&hslot->lock);
 	return 0;
 }
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index d8cc006fac45..74776de523ec 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -584,7 +584,7 @@ drop_n_restore:
 		skb->len = skb_len;
 	}
 drop:
-	kfree_skb(skb);
+	consume_skb(skb);
 	return 0;
 }
 
-- 
cgit v1.2.3


From 9a8afc8d3962f3ed26fd6b56db34133860ed1e72 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Wed, 11 Mar 2009 09:51:26 +0000
Subject: Network Drop Monitor: Adding drop monitor implementation & Netlink
 protocol

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>

 include/linux/net_dropmon.h |   56 +++++++++
 net/core/drop_monitor.c     |  263 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 319 insertions(+)
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/net_dropmon.h |  56 ++++++++++
 net/core/drop_monitor.c     | 263 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 319 insertions(+)
 create mode 100644 include/linux/net_dropmon.h
 create mode 100644 net/core/drop_monitor.c

(limited to 'include')

diff --git a/include/linux/net_dropmon.h b/include/linux/net_dropmon.h
new file mode 100644
index 000000000000..0217fb81a630
--- /dev/null
+++ b/include/linux/net_dropmon.h
@@ -0,0 +1,56 @@
+#ifndef __NET_DROPMON_H
+#define __NET_DROPMON_H
+
+#include <linux/netlink.h>
+
+struct net_dm_drop_point {
+	__u8 pc[8];
+	__u32 count;
+};
+
+#define NET_DM_CFG_VERSION  0
+#define NET_DM_CFG_ALERT_COUNT  1
+#define NET_DM_CFG_ALERT_DELAY 2
+#define NET_DM_CFG_MAX 3
+
+struct net_dm_config_entry {
+	__u32 type;
+	__u64 data __attribute__((aligned(8)));
+};
+
+struct net_dm_config_msg {
+	__u32 entries;
+	struct net_dm_config_entry options[0];
+};
+
+struct net_dm_alert_msg {
+	__u32 entries;
+	struct net_dm_drop_point points[0];
+};
+
+struct net_dm_user_msg {
+	union {
+		struct net_dm_config_msg user;
+		struct net_dm_alert_msg alert;
+	} u;
+};
+
+
+/* These are the netlink message types for this protocol */
+
+enum {
+	NET_DM_CMD_UNSPEC = 0,
+	NET_DM_CMD_ALERT,
+	NET_DM_CMD_CONFIG,
+	NET_DM_CMD_START,
+	NET_DM_CMD_STOP,
+	_NET_DM_CMD_MAX,
+};
+
+#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
+
+/*
+ * Our group identifiers
+ */
+#define NET_DM_GRP_ALERT 1
+#endif
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
new file mode 100644
index 000000000000..9fd0dc3cca99
--- /dev/null
+++ b/net/core/drop_monitor.c
@@ -0,0 +1,263 @@
+/*
+ * Monitoring code for network dropped packet alerts
+ *
+ * Copyright (C) 2009 Neil Horman <nhorman@tuxdriver.com>
+ */
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/string.h>
+#include <linux/if_arp.h>
+#include <linux/inetdevice.h>
+#include <linux/inet.h>
+#include <linux/interrupt.h>
+#include <linux/netpoll.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+#include <linux/netlink.h>
+#include <linux/net_dropmon.h>
+#include <linux/percpu.h>
+#include <linux/timer.h>
+#include <linux/bitops.h>
+#include <net/genetlink.h>
+
+#include <trace/skb.h>
+
+#include <asm/unaligned.h>
+
+#define TRACE_ON 1
+#define TRACE_OFF 0
+
+static void send_dm_alert(struct work_struct *unused);
+
+
+/*
+ * Globals, our netlink socket pointer
+ * and the work handle that will send up
+ * netlink alerts
+ */
+struct sock *dm_sock;
+
+struct per_cpu_dm_data {
+	struct work_struct dm_alert_work;
+	struct sk_buff *skb;
+	atomic_t dm_hit_count;
+	struct timer_list send_timer;
+};
+
+static struct genl_family net_drop_monitor_family = {
+	.id             = GENL_ID_GENERATE,
+	.hdrsize        = 0,
+	.name           = "NET_DM",
+	.version        = 1,
+	.maxattr        = NET_DM_CMD_MAX,
+};
+
+static DEFINE_PER_CPU(struct per_cpu_dm_data, dm_cpu_data);
+
+static int dm_hit_limit = 64;
+static int dm_delay = 1;
+
+
+static void reset_per_cpu_data(struct per_cpu_dm_data *data)
+{
+	size_t al;
+	struct net_dm_alert_msg *msg;
+
+	al = sizeof(struct net_dm_alert_msg);
+	al += dm_hit_limit * sizeof(struct net_dm_drop_point);
+	data->skb = genlmsg_new(al, GFP_KERNEL);
+	genlmsg_put(data->skb, 0, 0, &net_drop_monitor_family,
+			0, NET_DM_CMD_ALERT);
+	msg = __nla_reserve_nohdr(data->skb, sizeof(struct net_dm_alert_msg));
+	memset(msg, 0, al);
+	atomic_set(&data->dm_hit_count, dm_hit_limit);
+}
+
+static void send_dm_alert(struct work_struct *unused)
+{
+	struct sk_buff *skb;
+	struct per_cpu_dm_data *data = &__get_cpu_var(dm_cpu_data);
+
+	/*
+	 * Grab the skb we're about to send
+	 */
+	skb = data->skb;
+
+	/*
+	 * Replace it with a new one
+	 */
+	reset_per_cpu_data(data);
+
+	/*
+	 * Ship it!
+	 */
+	genlmsg_multicast(skb, 0, NET_DM_GRP_ALERT, GFP_KERNEL);
+
+}
+
+/*
+ * This is the timer function to delay the sending of an alert
+ * in the event that more drops will arrive during the
+ * hysteresis period.  Note that it operates under the timer interrupt
+ * so we don't need to disable preemption here
+ */
+static void sched_send_work(unsigned long unused)
+{
+	struct per_cpu_dm_data *data =  &__get_cpu_var(dm_cpu_data);
+
+	schedule_work(&data->dm_alert_work);
+}
+
+static void trace_kfree_skb_hit(struct sk_buff *skb, void *location)
+{
+	struct net_dm_alert_msg *msg;
+	struct nlmsghdr *nlh;
+	int i;
+	struct per_cpu_dm_data *data = &__get_cpu_var(dm_cpu_data);
+
+
+	if (!atomic_add_unless(&data->dm_hit_count, -1, 0)) {
+		/*
+		 * we're already at zero, discard this hit
+		 */
+		goto out;
+	}
+
+	nlh = (struct nlmsghdr *)data->skb->data;
+	msg = genlmsg_data(nlmsg_data(nlh));
+	for (i = 0; i < msg->entries; i++) {
+		if (!memcmp(&location, msg->points[i].pc, sizeof(void *))) {
+			msg->points[i].count++;
+			goto out;
+		}
+	}
+
+	/*
+	 * We need to create a new entry
+	 */
+	__nla_reserve_nohdr(data->skb, sizeof(struct net_dm_drop_point));
+	memcpy(msg->points[msg->entries].pc, &location, sizeof(void *));
+	msg->points[msg->entries].count = 1;
+	msg->entries++;
+
+	if (!timer_pending(&data->send_timer)) {
+		data->send_timer.expires = jiffies + dm_delay * HZ;
+		add_timer_on(&data->send_timer, smp_processor_id());
+	}
+
+out:
+	return;
+}
+
+static int set_all_monitor_traces(int state)
+{
+	int rc = 0;
+
+	switch (state) {
+	case TRACE_ON:
+		rc |= register_trace_kfree_skb(trace_kfree_skb_hit);
+		break;
+	case TRACE_OFF:
+		rc |= unregister_trace_kfree_skb(trace_kfree_skb_hit);
+
+		tracepoint_synchronize_unregister();
+		break;
+	default:
+		rc = 1;
+		break;
+	}
+
+	if (rc)
+		return -EINPROGRESS;
+	return rc;
+}
+
+
+static int net_dm_cmd_config(struct sk_buff *skb,
+			struct genl_info *info)
+{
+	return -ENOTSUPP;
+}
+
+static int net_dm_cmd_trace(struct sk_buff *skb,
+			struct genl_info *info)
+{
+	switch (info->genlhdr->cmd) {
+	case NET_DM_CMD_START:
+		return set_all_monitor_traces(TRACE_ON);
+		break;
+	case NET_DM_CMD_STOP:
+		return set_all_monitor_traces(TRACE_OFF);
+		break;
+	}
+
+	return -ENOTSUPP;
+}
+
+
+static struct genl_ops dropmon_ops[] = {
+	{
+		.cmd = NET_DM_CMD_CONFIG,
+		.doit = net_dm_cmd_config,
+	},
+	{
+		.cmd = NET_DM_CMD_START,
+		.doit = net_dm_cmd_trace,
+	},
+	{
+		.cmd = NET_DM_CMD_STOP,
+		.doit = net_dm_cmd_trace,
+	},
+};
+
+static int __init init_net_drop_monitor(void)
+{
+	int cpu;
+	int rc, i, ret;
+	struct per_cpu_dm_data *data;
+	printk(KERN_INFO "Initalizing network drop monitor service\n");
+
+	if (sizeof(void *) > 8) {
+		printk(KERN_ERR "Unable to store program counters on this arch, Drop monitor failed\n");
+		return -ENOSPC;
+	}
+
+	if (genl_register_family(&net_drop_monitor_family) < 0) {
+		printk(KERN_ERR "Could not create drop monitor netlink family\n");
+		return -EFAULT;
+	}
+
+	rc = -EFAULT;
+
+	for (i = 0; i < ARRAY_SIZE(dropmon_ops); i++) {
+		ret = genl_register_ops(&net_drop_monitor_family,
+					&dropmon_ops[i]);
+		if (ret) {
+			printk(KERN_CRIT "failed to register operation %d\n",
+				dropmon_ops[i].cmd);
+			goto out_unreg;
+		}
+	}
+
+	rc = 0;
+
+	for_each_present_cpu(cpu) {
+		data = &per_cpu(dm_cpu_data, cpu);
+		reset_per_cpu_data(data);
+		INIT_WORK(&data->dm_alert_work, send_dm_alert);
+		init_timer(&data->send_timer);
+		data->send_timer.data = cpu;
+		data->send_timer.function = sched_send_work;
+	}
+	goto out;
+
+out_unreg:
+	genl_unregister_family(&net_drop_monitor_family);
+out:
+	return rc;
+}
+
+late_initcall(init_net_drop_monitor);
-- 
cgit v1.2.3


From 273ae44b9cb9443e0b5265cdc99f127ddb95c8db Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Wed, 11 Mar 2009 09:53:16 +0000
Subject: Network Drop Monitor: Adding Build changes to enable drop monitor

Network Drop Monitor: Adding Build changes to enable drop monitor

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>

 include/linux/Kbuild |    1 +
 net/Kconfig          |   11 +++++++++++
 net/core/Makefile    |    1 +
 3 files changed, 13 insertions(+)
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/Kbuild |  1 +
 net/Kconfig          | 11 +++++++++++
 net/core/Makefile    |  1 +
 3 files changed, 13 insertions(+)

(limited to 'include')

diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 106c3ba50844..e9581fd9fb66 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -115,6 +115,7 @@ header-y += mqueue.h
 header-y += mtio.h
 header-y += ncp_no.h
 header-y += neighbour.h
+header-y += net_dropmon.h
 header-y += netfilter_arp.h
 header-y += netrom.h
 header-y += nfs2.h
diff --git a/net/Kconfig b/net/Kconfig
index 6b39ede3b1b1..c9fdcd7e71ea 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -222,6 +222,17 @@ config NET_TCPPROBE
 	To compile this code as a module, choose M here: the
 	module will be called tcp_probe.
 
+config NET_DROP_MONITOR
+	boolean "Network packet drop alerting service"
+	depends on INET && EXPERIMENTAL && TRACEPOINTS
+	---help---
+	This feature provides an alerting service to userspace in the
+	event that packets are discarded in the network stack.  Alerts
+	are broadcast via netlink socket to any listening user space
+	process.  If you don't need network drop alerts, or if you are ok
+	just checking the various proc files and other utilities for
+	drop statistics, say N here.
+
 endmenu
 
 endmenu
diff --git a/net/core/Makefile b/net/core/Makefile
index d47092bc525c..796f46eece5f 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -18,4 +18,5 @@ obj-$(CONFIG_NETPOLL) += netpoll.o
 obj-$(CONFIG_NET_DMA) += user_dma.o
 obj-$(CONFIG_FIB_RULES) += fib_rules.o
 obj-$(CONFIG_TRACEPOINTS) += net-traces.o
+obj-$(CONFIG_NET_DROP_MONITOR) += drop_monitor.o
 
-- 
cgit v1.2.3


From 211c738d86f3f423f1b218ab3a356c9538e38047 Mon Sep 17 00:00:00 2001
From: Yi Zou <yi.zou@intel.com>
Date: Fri, 27 Feb 2009 14:06:37 -0800
Subject: [SCSI] net, fcoe: add ETH_P_FCOE for Fibre Channel over Ethernet
 (FCoE)

This adds eth type ETH_P_FCOE for Fibre Channel over Ethernet (FCoE),
consequently, the ETH_P_FCOE from fc_fcoe.h and fcoe skb->protocol
is not set as ETH_P_FCOE.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/fcoe/libfcoe.c | 2 +-
 include/linux/if_ether.h    | 1 +
 include/scsi/fc/fc_fcoe.h   | 7 -------
 3 files changed, 2 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 5548bf3bb58b..a99a42807b38 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -460,7 +460,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
 	skb_reset_mac_header(skb);
 	skb_reset_network_header(skb);
 	skb->mac_len = elen;
-	skb->protocol = htons(ETH_P_802_3);
+	skb->protocol = htons(ETH_P_FCOE);
 	skb->dev = fc->real_dev;
 
 	/* fill up mac and fcoe headers */
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index 7f3c735f422b..59d197cb4851 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -78,6 +78,7 @@
 #define ETH_P_PAE	0x888E		/* Port Access Entity (IEEE 802.1X) */
 #define ETH_P_AOE	0x88A2		/* ATA over Ethernet		*/
 #define ETH_P_TIPC	0x88CA		/* TIPC 			*/
+#define ETH_P_FCOE	0x8906		/* Fibre Channel over Ethernet  */
 #define ETH_P_EDSA	0xDADA		/* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */
 
 /*
diff --git a/include/scsi/fc/fc_fcoe.h b/include/scsi/fc/fc_fcoe.h
index f271d9cc0fc2..ccb3dbe90463 100644
--- a/include/scsi/fc/fc_fcoe.h
+++ b/include/scsi/fc/fc_fcoe.h
@@ -24,13 +24,6 @@
  * FCoE - Fibre Channel over Ethernet.
  */
 
-/*
- * The FCoE ethertype eventually goes in net/if_ether.h.
- */
-#ifndef ETH_P_FCOE
-#define	ETH_P_FCOE	0x8906		/* FCOE ether type */
-#endif
-
 /*
  * FC_FCOE_OUI hasn't been standardized yet.   XXX TBD.
  */
-- 
cgit v1.2.3


From 43eb99c5b349b188f82725652f3d1018c619d682 Mon Sep 17 00:00:00 2001
From: Chris Leech <christopher.leech@intel.com>
Date: Fri, 27 Feb 2009 14:06:43 -0800
Subject: [SCSI] net: reclaim 8 upper bits of the netdev->features from GSO

Reclaim 8 upper bits of netdev->features from GSO.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/net/xen-netfront.c | 2 +-
 include/linux/netdevice.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index cd6184ee08ee..2ce536fcd209 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1511,7 +1511,7 @@ static int xennet_set_tso(struct net_device *dev, u32 data)
 static void xennet_set_features(struct net_device *dev)
 {
 	/* Turn off all GSO bits except ROBUST. */
-	dev->features &= (1 << NETIF_F_GSO_SHIFT) - 1;
+	dev->features &= ~NETIF_F_GSO_MASK;
 	dev->features |= NETIF_F_GSO_ROBUST;
 	xennet_set_sg(dev, 0);
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ec54785d34f9..c8238d9ba376 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -652,7 +652,7 @@ struct net_device
 
 	/* Segmentation offload features */
 #define NETIF_F_GSO_SHIFT	16
-#define NETIF_F_GSO_MASK	0xffff0000
+#define NETIF_F_GSO_MASK	0x00ff0000
 #define NETIF_F_TSO		(SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT)
 #define NETIF_F_UFO		(SKB_GSO_UDP << NETIF_F_GSO_SHIFT)
 #define NETIF_F_GSO_ROBUST	(SKB_GSO_DODGY << NETIF_F_GSO_SHIFT)
-- 
cgit v1.2.3


From 01d5b2fca1fa58ed5039239fd531e9f658971ace Mon Sep 17 00:00:00 2001
From: Chris Leech <christopher.leech@intel.com>
Date: Fri, 27 Feb 2009 14:06:49 -0800
Subject: [SCSI] net: define feature flags for FCoE offloads

Define feature flags for FCoE offloads.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/linux/netdevice.h | 3 +++
 include/linux/skbuff.h    | 2 ++
 2 files changed, 5 insertions(+)

(limited to 'include')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c8238d9ba376..5c405571cb60 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -650,6 +650,8 @@ struct net_device
 #define NETIF_F_GRO		16384	/* Generic receive offload */
 #define NETIF_F_LRO		32768	/* large receive offload */
 
+#define NETIF_F_FCOE_CRC	(1 << 24) /* FCoE CRC32 */
+
 	/* Segmentation offload features */
 #define NETIF_F_GSO_SHIFT	16
 #define NETIF_F_GSO_MASK	0x00ff0000
@@ -658,6 +660,7 @@ struct net_device
 #define NETIF_F_GSO_ROBUST	(SKB_GSO_DODGY << NETIF_F_GSO_SHIFT)
 #define NETIF_F_TSO_ECN		(SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT)
 #define NETIF_F_TSO6		(SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT)
+#define NETIF_F_FSO		(SKB_GSO_FCOE << NETIF_F_GSO_SHIFT)
 
 	/* List of features with software fallbacks. */
 #define NETIF_F_GSO_SOFTWARE	(NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 9dcf956ad18a..02adea2099a7 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -188,6 +188,8 @@ enum {
 	SKB_GSO_TCP_ECN = 1 << 3,
 
 	SKB_GSO_TCPV6 = 1 << 4,
+
+	SKB_GSO_FCOE = 1 << 5,
 };
 
 #if BITS_PER_LONG > 32
-- 
cgit v1.2.3


From 4d288d5767f853bfca25adc7b6030dc95518cb2e Mon Sep 17 00:00:00 2001
From: Yi Zou <yi.zou@intel.com>
Date: Fri, 27 Feb 2009 14:06:59 -0800
Subject: [SCSI] net: add FCoE offload support through net_device

This adds support to provide Fiber Channel over Ethernet (FCoE) offload
through net_device's net_device_ops struct. The offload through net_device
for FCoE is enabled in kernel as built-in or module driver.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/linux/netdevice.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'include')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5c405571cb60..7ed49f5335b1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -582,6 +582,14 @@ struct net_device_ops {
 #define HAVE_NETDEV_POLL
 	void                    (*ndo_poll_controller)(struct net_device *dev);
 #endif
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+	int			(*ndo_fcoe_ddp_setup)(struct net_device *dev,
+						      u16 xid,
+						      struct scatterlist *sgl,
+						      unsigned int sgc);
+	int			(*ndo_fcoe_ddp_done)(struct net_device *dev,
+						     u16 xid);
+#endif
 };
 
 /*
@@ -843,6 +851,11 @@ struct net_device
 	struct dcbnl_rtnl_ops *dcbnl_ops;
 #endif
 
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+	/* max exchange id for FCoE LRO by ddp */
+	unsigned int		fcoe_ddp_xid;
+#endif
+
 #ifdef CONFIG_COMPAT_NET_DEV_OPS
 	struct {
 		int			(*init)(struct net_device *dev);
-- 
cgit v1.2.3


From ea1e9a9df5e1fde7ad8878c85b4a097cad0ddcea Mon Sep 17 00:00:00 2001
From: Yi Zou <yi.zou@intel.com>
Date: Fri, 27 Feb 2009 14:07:04 -0800
Subject: [SCSI] fcoe, libfc: check offload features from LLD through netdev

This checks if net_devices supports FCoE offload ops in netdev_ops and it
if it does, then sets up the corresponding flags in the associated fc_lport.

For large send offload, the maximum length supported in one large send is now
described by the added lso_max in fc_lport, which is setup initially from
netdev->gso_max_size.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/fcoe/fcoe_sw.c | 29 ++++++++++++++++++++++++++++-
 include/scsi/libfc.h        |  1 +
 2 files changed, 29 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c
index da210eba1941..d99217d05104 100644
--- a/drivers/scsi/fcoe/fcoe_sw.c
+++ b/drivers/scsi/fcoe/fcoe_sw.c
@@ -133,6 +133,13 @@ static int fcoe_sw_lport_config(struct fc_lport *lp)
 	/* lport fc_lport related configuration */
 	fc_lport_config(lp);
 
+	/* offload related configuration */
+	lp->crc_offload = 0;
+	lp->seq_offload = 0;
+	lp->lro_enabled = 0;
+	lp->lro_xid = 0;
+	lp->lso_max = 0;
+
 	return 0;
 }
 
@@ -186,7 +193,27 @@ static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev)
 	if (fc->real_dev->features & NETIF_F_SG)
 		lp->sg_supp = 1;
 
-
+#ifdef NETIF_F_FCOE_CRC
+	if (netdev->features & NETIF_F_FCOE_CRC) {
+		lp->crc_offload = 1;
+		printk(KERN_DEBUG "fcoe:%s supports FCCRC offload\n",
+		       netdev->name);
+	}
+#endif
+#ifdef NETIF_F_FSO
+	if (netdev->features & NETIF_F_FSO) {
+		lp->seq_offload = 1;
+		lp->lso_max = netdev->gso_max_size;
+		printk(KERN_DEBUG "fcoe:%s supports LSO for max len 0x%x\n",
+		       netdev->name, lp->lso_max);
+	}
+#endif
+	if (netdev->fcoe_ddp_xid) {
+		lp->lro_enabled = 1;
+		lp->lro_xid = netdev->fcoe_ddp_xid;
+		printk(KERN_DEBUG "fcoe:%s supports LRO for max xid 0x%x\n",
+		       netdev->name, lp->lro_xid);
+	}
 	skb_queue_head_init(&fc->fcoe_pending_queue);
 	fc->fcoe_pending_queue_active = 0;
 
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index a2e126b86e3e..61c746cf55f3 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -654,6 +654,7 @@ struct fc_lport {
 	u16			link_speed;
 	u16			link_supported_speeds;
 	u16			lro_xid;	/* max xid for fcoe lro */
+	unsigned int		lso_max;	/* max large send size */
 	struct fc_ns_fts	fcts;	        /* FC-4 type masks */
 	struct fc_els_rnid_gen	rnid_gen;	/* RNID information */
 
-- 
cgit v1.2.3


From b277d2aa9a4d969002c4157bf77b76b9ad9ca04a Mon Sep 17 00:00:00 2001
From: Yi Zou <yi.zou@intel.com>
Date: Fri, 27 Feb 2009 14:07:21 -0800
Subject: [SCSI] libfc: add support of large receive offload by ddp in fc_fcp

When LLD supports direct data placement (ddp) for large receive of an scsi
i/o coming into fc_fcp, we call into libfc_function_template's ddp_setup()
to prepare for a ddp of large receive for this read I/O. When I/O is complete,
we call the corresponding ddp_done() to get the length of data ddped as well
as to let LLD do clean up.

fc_fcp_ddp_setup()/fc_fcp_ddp_done() are added to setup and complete a ddped
read I/O described by the given fc_fcp_pkt. They would call into corresponding
ddp_setup/ddp_done implemented by the fcoe layer. Eventually, fcoe layer calls
into LLD's ddp_setup/ddp_done provided through net_device

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/libfc/fc_exch.c |  4 ++-
 drivers/scsi/libfc/fc_fcp.c  | 61 +++++++++++++++++++++++++++++++++++++++++++-
 include/scsi/fc_frame.h      | 19 ++------------
 include/scsi/libfc.h         | 30 ++++++++++++++++++++++
 include/scsi/libfcoe.h       | 18 -------------
 5 files changed, 95 insertions(+), 37 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 8a0c5c239e9c..992af05aacf1 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -489,7 +489,7 @@ static u16 fc_em_alloc_xid(struct fc_exch_mgr *mp, const struct fc_frame *fp)
 	struct fc_exch *ep = NULL;
 
 	if (mp->max_read) {
-		if (fc_frame_is_read(fp)) {
+		if (fc_fcp_is_read(fr_fsp(fp))) {
 			min = mp->min_xid;
 			max = mp->max_read;
 			plast = &mp->last_read;
@@ -1841,6 +1841,8 @@ struct fc_seq *fc_exch_seq_send(struct fc_lport *lp,
 	fc_exch_setup_hdr(ep, fp, ep->f_ctl);
 	sp->cnt++;
 
+	fc_fcp_ddp_setup(fr_fsp(fp), ep->xid);
+
 	if (unlikely(lp->tt.frame_send(lp, fp)))
 		goto err;
 
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 48adb89d911a..a5725f3b7ce1 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -264,6 +264,56 @@ static void fc_fcp_retry_cmd(struct fc_fcp_pkt *fsp)
 	fc_fcp_complete_locked(fsp);
 }
 
+/*
+ * fc_fcp_ddp_setup - calls to LLD's ddp_setup to set up DDP
+ * transfer for a read I/O indicated by the fc_fcp_pkt.
+ * @fsp: ptr to the fc_fcp_pkt
+ *
+ * This is called in exch_seq_send() when we have a newly allocated
+ * exchange with a valid exchange id to setup ddp.
+ *
+ * returns: none
+ */
+void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid)
+{
+	struct fc_lport *lp;
+
+	if (!fsp)
+		return;
+
+	lp = fsp->lp;
+	if ((fsp->req_flags & FC_SRB_READ) &&
+	    (lp->lro_enabled) && (lp->tt.ddp_setup)) {
+		if (lp->tt.ddp_setup(lp, xid, scsi_sglist(fsp->cmd),
+				     scsi_sg_count(fsp->cmd)))
+			fsp->xfer_ddp = xid;
+	}
+}
+EXPORT_SYMBOL(fc_fcp_ddp_setup);
+
+/*
+ * fc_fcp_ddp_done - calls to LLD's ddp_done to release any
+ * DDP related resources for this I/O if it is initialized
+ * as a ddp transfer
+ * @fsp: ptr to the fc_fcp_pkt
+ *
+ * returns: none
+ */
+static void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp)
+{
+	struct fc_lport *lp;
+
+	if (!fsp)
+		return;
+
+	lp = fsp->lp;
+	if (fsp->xfer_ddp && lp->tt.ddp_done) {
+		fsp->xfer_len = lp->tt.ddp_done(lp, fsp->xfer_ddp);
+		fsp->xfer_ddp = 0;
+	}
+}
+
+
 /*
  * Receive SCSI data from target.
  * Called after receiving solicited data.
@@ -289,6 +339,9 @@ static void fc_fcp_recv_data(struct fc_fcp_pkt *fsp, struct fc_frame *fp)
 	len = fr_len(fp) - sizeof(*fh);
 	buf = fc_frame_payload_get(fp, 0);
 
+	/* if this I/O is ddped, update xfer len */
+	fc_fcp_ddp_done(fsp);
+
 	if (offset + len > fsp->data_len) {
 		/* this should never happen */
 		if ((fr_flags(fp) & FCPHF_CRC_UNCHECKED) &&
@@ -750,6 +803,9 @@ static void fc_fcp_resp(struct fc_fcp_pkt *fsp, struct fc_frame *fp)
 	fsp->scsi_comp_flags = flags;
 	expected_len = fsp->data_len;
 
+	/* if ddp, update xfer len */
+	fc_fcp_ddp_done(fsp);
+
 	if (unlikely((flags & ~FCP_CONF_REQ) || fc_rp->fr_status)) {
 		rp_ex = (void *)(fc_rp + 1);
 		if (flags & (FCP_RSP_LEN_VAL | FCP_SNS_LEN_VAL)) {
@@ -1012,7 +1068,7 @@ static int fc_fcp_cmd_send(struct fc_lport *lp, struct fc_fcp_pkt *fsp,
 	}
 
 	memcpy(fc_frame_payload_get(fp, len), &fsp->cdb_cmd, len);
-	fr_cmd(fp) = fsp->cmd;
+	fr_fsp(fp) = fsp;
 	rport = fsp->rport;
 	fsp->max_payload = rport->maxframe_size;
 	rp = rport->dd_data;
@@ -1746,6 +1802,9 @@ static void fc_io_compl(struct fc_fcp_pkt *fsp)
 	struct fc_lport *lp;
 	unsigned long flags;
 
+	/* release outstanding ddp context */
+	fc_fcp_ddp_done(fsp);
+
 	fsp->state |= FC_SRB_COMPL;
 	if (!(fsp->state & FC_SRB_FCP_PROCESSING_TMO)) {
 		spin_unlock_bh(&fsp->scsi_pkt_lock);
diff --git a/include/scsi/fc_frame.h b/include/scsi/fc_frame.h
index 04d34a71355f..59511057cee0 100644
--- a/include/scsi/fc_frame.h
+++ b/include/scsi/fc_frame.h
@@ -54,8 +54,7 @@
 #define fr_eof(fp)	(fr_cb(fp)->fr_eof)
 #define fr_flags(fp)	(fr_cb(fp)->fr_flags)
 #define fr_max_payload(fp)	(fr_cb(fp)->fr_max_payload)
-#define fr_cmd(fp)	(fr_cb(fp)->fr_cmd)
-#define fr_dir(fp)	(fr_cmd(fp)->sc_data_direction)
+#define fr_fsp(fp)	(fr_cb(fp)->fr_fsp)
 #define fr_crc(fp)	(fr_cb(fp)->fr_crc)
 
 struct fc_frame {
@@ -66,7 +65,7 @@ struct fcoe_rcv_info {
 	struct packet_type  *ptype;
 	struct fc_lport	*fr_dev;	/* transport layer private pointer */
 	struct fc_seq	*fr_seq;	/* for use with exchange manager */
-	struct scsi_cmnd *fr_cmd;	/* for use of scsi command */
+	struct fc_fcp_pkt *fr_fsp;	/* for the corresponding fcp I/O */
 	u32		fr_crc;
 	u16		fr_max_payload;	/* max FC payload */
 	enum fc_sof	fr_sof;		/* start of frame delimiter */
@@ -218,20 +217,6 @@ static inline bool fc_frame_is_cmd(const struct fc_frame *fp)
 	return fc_frame_rctl(fp) == FC_RCTL_DD_UNSOL_CMD;
 }
 
-static inline bool fc_frame_is_read(const struct fc_frame *fp)
-{
-	if (fc_frame_is_cmd(fp) && fr_cmd(fp))
-		return fr_dir(fp) == DMA_FROM_DEVICE;
-	return false;
-}
-
-static inline bool fc_frame_is_write(const struct fc_frame *fp)
-{
-	if (fc_frame_is_cmd(fp) && fr_cmd(fp))
-		return fr_dir(fp) == DMA_TO_DEVICE;
-	return false;
-}
-
 /*
  * Check for leaks.
  * Print the frame header of any currently allocated frame, assuming there
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 61c746cf55f3..a70eafaad084 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -245,6 +245,7 @@ struct fc_fcp_pkt {
 	 */
 	struct fcp_cmnd cdb_cmd;
 	size_t		xfer_len;
+	u16		xfer_ddp;	/* this xfer is ddped */
 	u32		xfer_contig_end; /* offset of end of contiguous xfer */
 	u16		max_payload;	/* max payload size in bytes */
 
@@ -267,6 +268,15 @@ struct fc_fcp_pkt {
 	u8		recov_retry;	/* count of recovery retries */
 	struct fc_seq	*recov_seq;	/* sequence for REC or SRR */
 };
+/*
+ * FC_FCP HELPER FUNCTIONS
+ *****************************/
+static inline bool fc_fcp_is_read(const struct fc_fcp_pkt *fsp)
+{
+	if (fsp && fsp->cmd)
+		return fsp->cmd->sc_data_direction == DMA_FROM_DEVICE;
+	return false;
+}
 
 /*
  * Structure and function definitions for managing Fibre Channel Exchanges
@@ -399,6 +409,21 @@ struct libfc_function_template {
 							   void *arg),
 					void *arg, unsigned int timer_msec);
 
+	/*
+	 * Sets up the DDP context for a given exchange id on the given
+	 * scatterlist if LLD supports DDP for large receive.
+	 *
+	 * STATUS: OPTIONAL
+	 */
+	int (*ddp_setup)(struct fc_lport *lp, u16 xid,
+			 struct scatterlist *sgl, unsigned int sgc);
+	/*
+	 * Completes the DDP transfer and returns the length of data DDPed
+	 * for the given exchange id.
+	 *
+	 * STATUS: OPTIONAL
+	 */
+	int (*ddp_done)(struct fc_lport *lp, u16 xid);
 	/*
 	 * Send a frame using an existing sequence and exchange.
 	 *
@@ -821,6 +846,11 @@ int fc_change_queue_type(struct scsi_device *sdev, int tag_type);
  */
 void fc_fcp_destroy(struct fc_lport *);
 
+/*
+ * Set up direct-data placement for this I/O request
+ */
+void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid);
+
 /*
  * ELS/CT interface
  *****************************/
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 941818f29f59..c41f7d0c6efc 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -124,24 +124,6 @@ static inline u16 skb_fc_rxid(const struct sk_buff *skb)
 	return be16_to_cpu(skb_fc_header(skb)->fh_rx_id);
 }
 
-/* FIXME - DMA_BIDIRECTIONAL ? */
-#define skb_cb(skb)	((struct fcoe_rcv_info *)&((skb)->cb[0]))
-#define skb_cmd(skb)	(skb_cb(skb)->fr_cmd)
-#define skb_dir(skb)	(skb_cmd(skb)->sc_data_direction)
-static inline bool skb_fc_is_read(const struct sk_buff *skb)
-{
-	if (skb_fc_is_cmd(skb) && skb_cmd(skb))
-		return skb_dir(skb) == DMA_FROM_DEVICE;
-	return false;
-}
-
-static inline bool skb_fc_is_write(const struct sk_buff *skb)
-{
-	if (skb_fc_is_cmd(skb) && skb_cmd(skb))
-		return skb_dir(skb) == DMA_TO_DEVICE;
-	return false;
-}
-
 /* libfcoe funcs */
 int fcoe_reset(struct Scsi_Host *shost);
 u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN],
-- 
cgit v1.2.3


From 5d82720a7f41f0c877e026c7d17e3bf20ccdbae0 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Fri, 13 Mar 2009 21:16:13 +0100
Subject: ide: save the returned value of dma_map_sg

dma_map_sg could return a value different to 'nents' argument of
dma_map_sg so the ide stack needs to save it for the later usage
(e.g. for_each_sg).

The ide stack also needs to save the original sg_nents value for
pci_unmap_sg.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
[bart: backport to Linus' tree]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-dma.c | 12 +++++++++---
 include/linux/ide.h   |  1 +
 2 files changed, 10 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 72ebab0bc755..059c90bb5ad2 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -128,6 +128,7 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct scatterlist *sg = hwif->sg_table;
+	int i;
 
 	ide_map_sg(drive, rq);
 
@@ -136,8 +137,13 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 	else
 		hwif->sg_dma_direction = DMA_TO_DEVICE;
 
-	return dma_map_sg(hwif->dev, sg, hwif->sg_nents,
-			  hwif->sg_dma_direction);
+	i = dma_map_sg(hwif->dev, sg, hwif->sg_nents, hwif->sg_dma_direction);
+	if (i) {
+		hwif->orig_sg_nents = hwif->sg_nents;
+		hwif->sg_nents = i;
+	}
+
+	return i;
 }
 EXPORT_SYMBOL_GPL(ide_build_sglist);
 
@@ -156,7 +162,7 @@ void ide_destroy_dmatable(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
 
-	dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->sg_nents,
+	dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->orig_sg_nents,
 		     hwif->sg_dma_direction);
 }
 EXPORT_SYMBOL_GPL(ide_destroy_dmatable);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index e0cedfe9fad4..25087aead657 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -797,6 +797,7 @@ typedef struct hwif_s {
 	struct scatterlist *sg_table;
 	int sg_max_nents;		/* Maximum number of entries in it */
 	int sg_nents;			/* Current number of entries in it */
+	int orig_sg_nents;
 	int sg_dma_direction;		/* dma transfer direction */
 
 	/* data phase of the active command (currently only valid for PIO/DMA) */
-- 
cgit v1.2.3


From 1b2c7af877f427a2b25583c9033616c9ebd30aed Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Thu, 5 Mar 2009 14:45:58 -0600
Subject: [SCSI] libiscsi: replace scsi_debug logging with session/conn logging

This makes the logging a compile time option and replaces
the scsi_debug macro with session and connection ones
that print out a driver model id prefix.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/libiscsi.c | 164 ++++++++++++++++++++++++++++++------------------
 include/scsi/libiscsi.h |   7 ---
 2 files changed, 103 insertions(+), 68 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index c33e28fd49bc..701457cca08a 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -38,6 +38,28 @@
 #include <scsi/scsi_transport_iscsi.h>
 #include <scsi/libiscsi.h>
 
+static int iscsi_dbg_lib;
+module_param_named(debug_libiscsi, iscsi_dbg_lib, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug_libiscsi, "Turn on debugging for libiscsi module. "
+		 "Set to 1 to turn on, and zero to turn off. Default "
+		 "is off.");
+
+#define ISCSI_DBG_CONN(_conn, dbg_fmt, arg...)			\
+	do {							\
+		if (iscsi_dbg_lib)				\
+			iscsi_conn_printk(KERN_INFO, _conn,	\
+					     "%s " dbg_fmt,	\
+					     __func__, ##arg);	\
+	} while (0);
+
+#define ISCSI_DBG_SESSION(_session, dbg_fmt, arg...)			\
+	do {								\
+		if (iscsi_dbg_lib)					\
+			iscsi_session_printk(KERN_INFO, _session,	\
+					     "%s " dbg_fmt,		\
+					     __func__, ##arg);		\
+	} while (0);
+
 /* Serial Number Arithmetic, 32 bits, less than, RFC1982 */
 #define SNA32_CHECK 2147483648UL
 
@@ -176,10 +198,11 @@ static int iscsi_prep_ecdb_ahs(struct iscsi_task *task)
 	ecdb_ahdr->reserved = 0;
 	memcpy(ecdb_ahdr->ecdb, cmd->cmnd + ISCSI_CDB_SIZE, rlen);
 
-	debug_scsi("iscsi_prep_ecdb_ahs: varlen_cdb_len %d "
-		   "rlen %d pad_len %d ahs_length %d iscsi_headers_size %u\n",
-		   cmd->cmd_len, rlen, pad_len, ahslength, task->hdr_len);
-
+	ISCSI_DBG_SESSION(task->conn->session,
+			  "iscsi_prep_ecdb_ahs: varlen_cdb_len %d "
+		          "rlen %d pad_len %d ahs_length %d iscsi_headers_size "
+		          "%u\n", cmd->cmd_len, rlen, pad_len, ahslength,
+		          task->hdr_len);
 	return 0;
 }
 
@@ -201,10 +224,11 @@ static int iscsi_prep_bidi_ahs(struct iscsi_task *task)
 	rlen_ahdr->reserved = 0;
 	rlen_ahdr->read_length = cpu_to_be32(scsi_in(sc)->length);
 
-	debug_scsi("bidi-in rlen_ahdr->read_length(%d) "
-		   "rlen_ahdr->ahslength(%d)\n",
-		   be32_to_cpu(rlen_ahdr->read_length),
-		   be16_to_cpu(rlen_ahdr->ahslength));
+	ISCSI_DBG_SESSION(task->conn->session,
+			  "bidi-in rlen_ahdr->read_length(%d) "
+		          "rlen_ahdr->ahslength(%d)\n",
+		          be32_to_cpu(rlen_ahdr->read_length),
+		          be16_to_cpu(rlen_ahdr->ahslength));
 	return 0;
 }
 
@@ -335,13 +359,15 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
 	list_move_tail(&task->running, &conn->run_list);
 
 	conn->scsicmd_pdus_cnt++;
-	debug_scsi("iscsi prep [%s cid %d sc %p cdb 0x%x itt 0x%x len %d "
-		   "bidi_len %d cmdsn %d win %d]\n", scsi_bidi_cmnd(sc) ?
-		   "bidirectional" : sc->sc_data_direction == DMA_TO_DEVICE ?
-		   "write" : "read", conn->id, sc, sc->cmnd[0], task->itt,
-		   scsi_bufflen(sc),
-		   scsi_bidi_cmnd(sc) ? scsi_in(sc)->length : 0,
-		   session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1);
+	ISCSI_DBG_SESSION(session, "iscsi prep [%s cid %d sc %p cdb 0x%x "
+			  "itt 0x%x len %d bidi_len %d cmdsn %d win %d]\n",
+			  scsi_bidi_cmnd(sc) ? "bidirectional" :
+			  sc->sc_data_direction == DMA_TO_DEVICE ?
+			  "write" : "read", conn->id, sc, sc->cmnd[0],
+			  task->itt, scsi_bufflen(sc),
+			  scsi_bidi_cmnd(sc) ? scsi_in(sc)->length : 0,
+			  session->cmdsn,
+			  session->max_cmdsn - session->exp_cmdsn + 1);
 	return 0;
 }
 
@@ -483,9 +509,9 @@ static int iscsi_prep_mgmt_task(struct iscsi_conn *conn,
 
 	task->state = ISCSI_TASK_RUNNING;
 	list_move_tail(&task->running, &conn->mgmt_run_list);
-	debug_scsi("mgmtpdu [op 0x%x hdr->itt 0x%x datalen %d]\n",
-		   hdr->opcode & ISCSI_OPCODE_MASK, hdr->itt,
-		   task->data_count);
+	ISCSI_DBG_SESSION(session, "mgmtpdu [op 0x%x hdr->itt 0x%x "
+			  "datalen %d]\n", hdr->opcode & ISCSI_OPCODE_MASK,
+			  hdr->itt, task->data_count);
 	return 0;
 }
 
@@ -637,8 +663,9 @@ invalid_datalen:
 
 		memcpy(sc->sense_buffer, data + 2,
 		       min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));
-		debug_scsi("copied %d bytes of sense\n",
-			   min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));
+		ISCSI_DBG_SESSION(session, "copied %d bytes of sense\n",
+				  min_t(uint16_t, senselen,
+				  SCSI_SENSE_BUFFERSIZE));
 	}
 
 	if (rhdr->flags & (ISCSI_FLAG_CMD_BIDI_UNDERFLOW |
@@ -666,8 +693,8 @@ invalid_datalen:
 			sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
 	}
 out:
-	debug_scsi("done [sc %lx res %d itt 0x%x]\n",
-		   (long)sc, sc->result, task->itt);
+	ISCSI_DBG_SESSION(session, "done [sc %p res %d itt 0x%x]\n",
+			  sc, sc->result, task->itt);
 	conn->scsirsp_pdus_cnt++;
 
 	__iscsi_put_task(task);
@@ -835,8 +862,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 	else
 		itt = ~0U;
 
-	debug_scsi("[op 0x%x cid %d itt 0x%x len %d]\n",
-		   opcode, conn->id, itt, datalen);
+	ISCSI_DBG_SESSION(session, "[op 0x%x cid %d itt 0x%x len %d]\n",
+			  opcode, conn->id, itt, datalen);
 
 	if (itt == ~0U) {
 		iscsi_update_cmdsn(session, (struct iscsi_nopin*)hdr);
@@ -1095,10 +1122,10 @@ static int iscsi_check_cmdsn_window_closed(struct iscsi_conn *conn)
 	 * Check for iSCSI window and take care of CmdSN wrap-around
 	 */
 	if (!iscsi_sna_lte(session->queued_cmdsn, session->max_cmdsn)) {
-		debug_scsi("iSCSI CmdSN closed. ExpCmdSn %u MaxCmdSN %u "
-			   "CmdSN %u/%u\n", session->exp_cmdsn,
-			   session->max_cmdsn, session->cmdsn,
-			   session->queued_cmdsn);
+		ISCSI_DBG_SESSION(session, "iSCSI CmdSN closed. ExpCmdSn "
+				  "%u MaxCmdSN %u CmdSN %u/%u\n",
+				  session->exp_cmdsn, session->max_cmdsn,
+				  session->cmdsn, session->queued_cmdsn);
 		return -ENOSPC;
 	}
 	return 0;
@@ -1152,7 +1179,7 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
 
 	spin_lock_bh(&conn->session->lock);
 	if (unlikely(conn->suspend_tx)) {
-		debug_scsi("conn %d Tx suspended!\n", conn->id);
+		ISCSI_DBG_SESSION(conn->session, "Tx suspended!\n");
 		spin_unlock_bh(&conn->session->lock);
 		return -ENODATA;
 	}
@@ -1398,7 +1425,8 @@ prepd_reject:
 	iscsi_complete_command(task);
 reject:
 	spin_unlock(&session->lock);
-	debug_scsi("cmd 0x%x rejected (%d)\n", sc->cmnd[0], reason);
+	ISCSI_DBG_SESSION(session, "cmd 0x%x rejected (%d)\n",
+			  sc->cmnd[0], reason);
 	spin_lock(host->host_lock);
 	return SCSI_MLQUEUE_TARGET_BUSY;
 
@@ -1407,7 +1435,8 @@ prepd_fault:
 	iscsi_complete_command(task);
 fault:
 	spin_unlock(&session->lock);
-	debug_scsi("iscsi: cmd 0x%x is not queued (%d)\n", sc->cmnd[0], reason);
+	ISCSI_DBG_SESSION(session, "iscsi: cmd 0x%x is not queued (%d)\n",
+			  sc->cmnd[0], reason);
 	if (!scsi_bidi_cmnd(sc))
 		scsi_set_resid(sc, scsi_bufflen(sc));
 	else {
@@ -1457,8 +1486,10 @@ int iscsi_eh_target_reset(struct scsi_cmnd *sc)
 	spin_lock_bh(&session->lock);
 	if (session->state == ISCSI_STATE_TERMINATE) {
 failed:
-		debug_scsi("failing target reset: session terminated "
-			   "[CID %d age %d]\n", conn->id, session->age);
+		iscsi_session_printk(KERN_INFO, session,
+				     "failing target reset: Could not log "
+				     "back into target [age %d]\n",
+				     session->age);
 		spin_unlock_bh(&session->lock);
 		mutex_unlock(&session->eh_mutex);
 		return FAILED;
@@ -1472,7 +1503,7 @@ failed:
 	 */
 	iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
 
-	debug_scsi("iscsi_eh_target_reset wait for relogin\n");
+	ISCSI_DBG_SESSION(session, "wait for relogin\n");
 	wait_event_interruptible(conn->ehwait,
 				 session->state == ISCSI_STATE_TERMINATE ||
 				 session->state == ISCSI_STATE_LOGGED_IN ||
@@ -1501,7 +1532,7 @@ static void iscsi_tmf_timedout(unsigned long data)
 	spin_lock(&session->lock);
 	if (conn->tmf_state == TMF_QUEUED) {
 		conn->tmf_state = TMF_TIMEDOUT;
-		debug_scsi("tmf timedout\n");
+		ISCSI_DBG_SESSION(session, "tmf timedout\n");
 		/* unblock eh_abort() */
 		wake_up(&conn->ehwait);
 	}
@@ -1521,7 +1552,7 @@ static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
 		spin_unlock_bh(&session->lock);
 		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
 		spin_lock_bh(&session->lock);
-		debug_scsi("tmf exec failure\n");
+		ISCSI_DBG_SESSION(session, "tmf exec failure\n");
 		return -EPERM;
 	}
 	conn->tmfcmd_pdus_cnt++;
@@ -1529,7 +1560,7 @@ static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
 	conn->tmf_timer.function = iscsi_tmf_timedout;
 	conn->tmf_timer.data = (unsigned long)conn;
 	add_timer(&conn->tmf_timer);
-	debug_scsi("tmf set timeout\n");
+	ISCSI_DBG_SESSION(session, "tmf set timeout\n");
 
 	spin_unlock_bh(&session->lock);
 	mutex_unlock(&session->eh_mutex);
@@ -1573,16 +1604,18 @@ static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
 	/* flush pending */
 	list_for_each_entry_safe(task, tmp, &conn->xmitqueue, running) {
 		if (lun == task->sc->device->lun || lun == -1) {
-			debug_scsi("failing pending sc %p itt 0x%x\n",
-				   task->sc, task->itt);
+			ISCSI_DBG_SESSION(conn->session,
+					  "failing pending sc %p itt 0x%x\n",
+					  task->sc, task->itt);
 			fail_command(conn, task, error << 16);
 		}
 	}
 
 	list_for_each_entry_safe(task, tmp, &conn->requeue, running) {
 		if (lun == task->sc->device->lun || lun == -1) {
-			debug_scsi("failing requeued sc %p itt 0x%x\n",
-				   task->sc, task->itt);
+			ISCSI_DBG_SESSION(conn->session,
+					  "failing requeued sc %p itt 0x%x\n",
+					  task->sc, task->itt);
 			fail_command(conn, task, error << 16);
 		}
 	}
@@ -1590,8 +1623,9 @@ static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
 	/* fail all other running */
 	list_for_each_entry_safe(task, tmp, &conn->run_list, running) {
 		if (lun == task->sc->device->lun || lun == -1) {
-			debug_scsi("failing in progress sc %p itt 0x%x\n",
-				   task->sc, task->itt);
+			ISCSI_DBG_SESSION(conn->session,
+					 "failing in progress sc %p itt 0x%x\n",
+					 task->sc, task->itt);
 			fail_command(conn, task, error << 16);
 		}
 	}
@@ -1622,7 +1656,7 @@ static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
 	cls_session = starget_to_session(scsi_target(scmd->device));
 	session = cls_session->dd_data;
 
-	debug_scsi("scsi cmd %p timedout\n", scmd);
+	ISCSI_DBG_SESSION(session, "scsi cmd %p timedout\n", scmd);
 
 	spin_lock(&session->lock);
 	if (session->state != ISCSI_STATE_LOGGED_IN) {
@@ -1662,8 +1696,8 @@ static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
 		rc = BLK_EH_RESET_TIMER;
 done:
 	spin_unlock(&session->lock);
-	debug_scsi("return %s\n", rc == BLK_EH_RESET_TIMER ?
-					"timer reset" : "nh");
+	ISCSI_DBG_SESSION(session, "return %s\n", rc == BLK_EH_RESET_TIMER ?
+			  "timer reset" : "nh");
 	return rc;
 }
 
@@ -1697,13 +1731,13 @@ static void iscsi_check_transport_timeouts(unsigned long data)
 
 	if (time_before_eq(last_recv + recv_timeout, jiffies)) {
 		/* send a ping to try to provoke some traffic */
-		debug_scsi("Sending nopout as ping on conn %p\n", conn);
+		ISCSI_DBG_CONN(conn, "Sending nopout as ping\n");
 		iscsi_send_nopout(conn, NULL);
 		next_timeout = conn->last_ping + (conn->ping_timeout * HZ);
 	} else
 		next_timeout = last_recv + recv_timeout;
 
-	debug_scsi("Setting next tmo %lu\n", next_timeout);
+	ISCSI_DBG_CONN(conn, "Setting next tmo %lu\n", next_timeout);
 	mod_timer(&conn->transport_timer, next_timeout);
 done:
 	spin_unlock(&session->lock);
@@ -1740,7 +1774,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 	 * got the command.
 	 */
 	if (!sc->SCp.ptr) {
-		debug_scsi("sc never reached iscsi layer or it completed.\n");
+		ISCSI_DBG_SESSION(session, "sc never reached iscsi layer or "
+				  "it completed.\n");
 		spin_unlock_bh(&session->lock);
 		mutex_unlock(&session->eh_mutex);
 		return SUCCESS;
@@ -1762,11 +1797,13 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 	age = session->age;
 
 	task = (struct iscsi_task *)sc->SCp.ptr;
-	debug_scsi("aborting [sc %p itt 0x%x]\n", sc, task->itt);
+	ISCSI_DBG_SESSION(session, "aborting [sc %p itt 0x%x]\n",
+			  sc, task->itt);
 
 	/* task completed before time out */
 	if (!task->sc) {
-		debug_scsi("sc completed while abort in progress\n");
+		ISCSI_DBG_SESSION(session, "sc completed while abort in "
+				  "progress\n");
 		goto success;
 	}
 
@@ -1815,7 +1852,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 		if (!sc->SCp.ptr) {
 			conn->tmf_state = TMF_INITIAL;
 			/* task completed before tmf abort response */
-			debug_scsi("sc completed while abort in progress\n");
+			ISCSI_DBG_SESSION(session, "sc completed while abort "
+					  "in progress\n");
 			goto success;
 		}
 		/* fall through */
@@ -1827,15 +1865,16 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 success:
 	spin_unlock_bh(&session->lock);
 success_unlocked:
-	debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, task->itt);
+	ISCSI_DBG_SESSION(session, "abort success [sc %p itt 0x%x]\n",
+			  sc, task->itt);
 	mutex_unlock(&session->eh_mutex);
 	return SUCCESS;
 
 failed:
 	spin_unlock_bh(&session->lock);
 failed_unlocked:
-	debug_scsi("abort failed [sc %p itt 0x%x]\n", sc,
-		    task ? task->itt : 0);
+	ISCSI_DBG_SESSION(session, "abort failed [sc %p itt 0x%x]\n", sc,
+			  task ? task->itt : 0);
 	mutex_unlock(&session->eh_mutex);
 	return FAILED;
 }
@@ -1862,7 +1901,8 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc)
 	cls_session = starget_to_session(scsi_target(sc->device));
 	session = cls_session->dd_data;
 
-	debug_scsi("LU Reset [sc %p lun %u]\n", sc, sc->device->lun);
+	ISCSI_DBG_SESSION(session, "LU Reset [sc %p lun %u]\n",
+			  sc, sc->device->lun);
 
 	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
@@ -1916,8 +1956,8 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc)
 unlock:
 	spin_unlock_bh(&session->lock);
 done:
-	debug_scsi("iscsi_eh_device_reset %s\n",
-		  rc == SUCCESS ? "SUCCESS" : "FAILED");
+	ISCSI_DBG_SESSION(session, "dev reset result = %s\n",
+			 rc == SUCCESS ? "SUCCESS" : "FAILED");
 	mutex_unlock(&session->eh_mutex);
 	return rc;
 }
@@ -2466,14 +2506,16 @@ flush_control_queues(struct iscsi_session *session, struct iscsi_conn *conn)
 
 	/* handle pending */
 	list_for_each_entry_safe(task, tmp, &conn->mgmtqueue, running) {
-		debug_scsi("flushing pending mgmt task itt 0x%x\n", task->itt);
+		ISCSI_DBG_SESSION(session, "flushing pending mgmt task "
+				  "itt 0x%x\n", task->itt);
 		/* release ref from prep task */
 		__iscsi_put_task(task);
 	}
 
 	/* handle running */
 	list_for_each_entry_safe(task, tmp, &conn->mgmt_run_list, running) {
-		debug_scsi("flushing running mgmt task itt 0x%x\n", task->itt);
+		ISCSI_DBG_SESSION(session, "flushing running mgmt task "
+				  "itt 0x%x\n", task->itt);
 		/* release ref from prep task */
 		__iscsi_put_task(task);
 	}
@@ -2523,7 +2565,7 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
 		conn->datadgst_en = 0;
 		if (session->state == ISCSI_STATE_IN_RECOVERY &&
 		    old_stop_stage != STOP_CONN_RECOVER) {
-			debug_scsi("blocking session\n");
+			ISCSI_DBG_SESSION(session, "blocking session\n");
 			iscsi_block_session(session->cls_session);
 		}
 	}
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 7360e1916e75..67542aa3aedc 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -45,13 +45,6 @@ struct iscsi_session;
 struct iscsi_nopin;
 struct device;
 
-/* #define DEBUG_SCSI */
-#ifdef DEBUG_SCSI
-#define debug_scsi(fmt...) printk(KERN_INFO "iscsi: " fmt)
-#else
-#define debug_scsi(fmt...)
-#endif
-
 #define ISCSI_DEF_XMIT_CMDS_MAX	128	/* must be power of 2 */
 #define ISCSI_MGMT_CMDS_MAX	15
 
-- 
cgit v1.2.3


From e28f3d5b51ed07d822f135cd941b01e2d485270e Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Thu, 5 Mar 2009 14:46:01 -0600
Subject: [SCSI] libiscsi: don't cap queue depth in iscsi modules

There is no need to cap the queue depth in the modules. We set
this in userspace and can do that there. For performance testing
with ram based targets, this is helpful since we can have very
high queue depths.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/infiniband/ulp/iser/iscsi_iser.c | 4 ++--
 drivers/infiniband/ulp/iser/iscsi_iser.h | 2 +-
 drivers/scsi/libiscsi.c                  | 9 +--------
 include/scsi/libiscsi.h                  | 3 +--
 4 files changed, 5 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 4338f54c41fa..5f79c0a5faf3 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -404,7 +404,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 	struct Scsi_Host *shost;
 	struct iser_conn *ib_conn;
 
-	shost = iscsi_host_alloc(&iscsi_iser_sht, 0, ISCSI_MAX_CMD_PER_LUN);
+	shost = iscsi_host_alloc(&iscsi_iser_sht, 0, ISER_DEF_CMD_PER_LUN);
 	if (!shost)
 		return NULL;
 	shost->transportt = iscsi_iser_scsi_transport;
@@ -596,7 +596,7 @@ static struct scsi_host_template iscsi_iser_sht = {
 	.change_queue_depth	= iscsi_change_queue_depth,
 	.sg_tablesize           = ISCSI_ISER_SG_TABLESIZE,
 	.max_sectors		= 1024,
-	.cmd_per_lun            = ISCSI_MAX_CMD_PER_LUN,
+	.cmd_per_lun            = ISER_DEF_CMD_PER_LUN,
 	.eh_abort_handler       = iscsi_eh_abort,
 	.eh_device_reset_handler= iscsi_eh_device_reset,
 	.eh_target_reset_handler= iscsi_eh_target_reset,
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h
index 861119593f2b..9d529cae1f0d 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -93,7 +93,7 @@
 
 					/* support upto 512KB in one RDMA */
 #define ISCSI_ISER_SG_TABLESIZE         (0x80000 >> SHIFT_4K)
-#define ISCSI_ISER_MAX_LUN		256
+#define ISER_DEF_CMD_PER_LUN		128
 
 /* QP settings */
 /* Maximal bounds on received asynchronous PDUs */
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 701457cca08a..a5168a673503 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1451,8 +1451,6 @@ EXPORT_SYMBOL_GPL(iscsi_queuecommand);
 
 int iscsi_change_queue_depth(struct scsi_device *sdev, int depth)
 {
-	if (depth > ISCSI_MAX_CMD_PER_LUN)
-		depth = ISCSI_MAX_CMD_PER_LUN;
 	scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
 	return sdev->queue_depth;
 }
@@ -2062,13 +2060,8 @@ struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
 	if (!shost)
 		return NULL;
 
-	if (qdepth > ISCSI_MAX_CMD_PER_LUN || qdepth < 1) {
-		if (qdepth != 0)
-			printk(KERN_ERR "iscsi: invalid queue depth of %d. "
-			       "Queue depth must be between 1 and %d.\n",
-			       qdepth, ISCSI_MAX_CMD_PER_LUN);
+	if (qdepth == 0)
 		qdepth = ISCSI_DEF_CMD_PER_LUN;
-	}
 	shost->cmd_per_lun = qdepth;
 
 	ihost = shost_priv(shost);
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 67542aa3aedc..898de4a73727 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -48,8 +48,7 @@ struct device;
 #define ISCSI_DEF_XMIT_CMDS_MAX	128	/* must be power of 2 */
 #define ISCSI_MGMT_CMDS_MAX	15
 
-#define ISCSI_DEF_CMD_PER_LUN		32
-#define ISCSI_MAX_CMD_PER_LUN		128
+#define ISCSI_DEF_CMD_PER_LUN	32
 
 /* Task Mgmt states */
 enum {
-- 
cgit v1.2.3


From 06d25af4edb60f9e9c7e74d342a6963a32e3392f Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Thu, 5 Mar 2009 14:46:02 -0600
Subject: [SCSI] iscsi class: fix lock dep warning on logout

We never should hit the lock up that is spit out when
lock dep is on and we logout. But we have been using the
shost work queue in a odd way. This patch has us use the
work queue for scanning instead of creating our own,
and this ends up also killing the lock dep warnings.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/scsi_transport_iscsi.c | 38 ++++++-------------------------------
 include/scsi/scsi_transport_iscsi.h |  2 --
 2 files changed, 6 insertions(+), 34 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 75c9297694cb..4f22f9e37c5a 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -246,30 +246,13 @@ static int iscsi_setup_host(struct transport_container *tc, struct device *dev,
 	memset(ihost, 0, sizeof(*ihost));
 	atomic_set(&ihost->nr_scans, 0);
 	mutex_init(&ihost->mutex);
-
-	snprintf(ihost->scan_workq_name, sizeof(ihost->scan_workq_name),
-		 "iscsi_scan_%d", shost->host_no);
-	ihost->scan_workq = create_singlethread_workqueue(
-						ihost->scan_workq_name);
-	if (!ihost->scan_workq)
-		return -ENOMEM;
-	return 0;
-}
-
-static int iscsi_remove_host(struct transport_container *tc, struct device *dev,
-			     struct device *cdev)
-{
-	struct Scsi_Host *shost = dev_to_shost(dev);
-	struct iscsi_cls_host *ihost = shost->shost_data;
-
-	destroy_workqueue(ihost->scan_workq);
 	return 0;
 }
 
 static DECLARE_TRANSPORT_CLASS(iscsi_host_class,
 			       "iscsi_host",
 			       iscsi_setup_host,
-			       iscsi_remove_host,
+			       NULL,
 			       NULL);
 
 static DECLARE_TRANSPORT_CLASS(iscsi_session_class,
@@ -568,7 +551,7 @@ static void __iscsi_unblock_session(struct work_struct *work)
 	 * scanning from userspace).
 	 */
 	if (shost->hostt->scan_finished) {
-		if (queue_work(ihost->scan_workq, &session->scan_work))
+		if (scsi_queue_work(shost, &session->scan_work))
 			atomic_inc(&ihost->nr_scans);
 	}
 }
@@ -636,14 +619,6 @@ static void __iscsi_unbind_session(struct work_struct *work)
 	iscsi_session_event(session, ISCSI_KEVENT_UNBIND_SESSION);
 }
 
-static int iscsi_unbind_session(struct iscsi_cls_session *session)
-{
-	struct Scsi_Host *shost = iscsi_session_to_shost(session);
-	struct iscsi_cls_host *ihost = shost->shost_data;
-
-	return queue_work(ihost->scan_workq, &session->unbind_work);
-}
-
 struct iscsi_cls_session *
 iscsi_alloc_session(struct Scsi_Host *shost, struct iscsi_transport *transport,
 		    int dd_size)
@@ -796,7 +771,6 @@ static int iscsi_iter_destroy_conn_fn(struct device *dev, void *data)
 void iscsi_remove_session(struct iscsi_cls_session *session)
 {
 	struct Scsi_Host *shost = iscsi_session_to_shost(session);
-	struct iscsi_cls_host *ihost = shost->shost_data;
 	unsigned long flags;
 	int err;
 
@@ -821,7 +795,7 @@ void iscsi_remove_session(struct iscsi_cls_session *session)
 
 	scsi_target_unblock(&session->dev);
 	/* flush running scans then delete devices */
-	flush_workqueue(ihost->scan_workq);
+	scsi_flush_work(shost);
 	__iscsi_unbind_session(&session->unbind_work);
 
 	/* hw iscsi may not have removed all connections from session */
@@ -1447,7 +1421,8 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	case ISCSI_UEVENT_UNBIND_SESSION:
 		session = iscsi_session_lookup(ev->u.d_session.sid);
 		if (session)
-			iscsi_unbind_session(session);
+			scsi_queue_work(iscsi_session_to_shost(session),
+					&session->unbind_work);
 		else
 			err = -EINVAL;
 		break;
@@ -1809,8 +1784,7 @@ iscsi_register_transport(struct iscsi_transport *tt)
 	priv->daemon_pid = -1;
 	priv->iscsi_transport = tt;
 	priv->t.user_scan = iscsi_user_scan;
-	if (!(tt->caps & CAP_DATA_PATH_OFFLOAD))
-		priv->t.create_work_queue = 1;
+	priv->t.create_work_queue = 1;
 
 	priv->dev.class = &iscsi_transport_class;
 	dev_set_name(&priv->dev, "%s", tt->name);
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index b50aabe2861e..ac29fbd35544 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -206,8 +206,6 @@ struct iscsi_cls_session {
 struct iscsi_cls_host {
 	atomic_t nr_scans;
 	struct mutex mutex;
-	struct workqueue_struct *scan_workq;
-	char scan_workq_name[20];
 };
 
 extern void iscsi_host_for_each_session(struct Scsi_Host *shost,
-- 
cgit v1.2.3


From 32ae763e3fce4192cd008956a340353a2e5c3192 Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Thu, 5 Mar 2009 14:46:03 -0600
Subject: [SCSI] iscsi lib: have lib create work queue for transmitting IO

We were using the shost work queue which ended up being
a little akward since all iscsi hosts need a thread for
scanning, but only drivers hooked into libiscsi need
a workqueue for transmitting. So this patch moves the
xmit workqueue to the lib.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/infiniband/ulp/iser/iscsi_iser.c     |  2 +-
 drivers/infiniband/ulp/iser/iser_initiator.c |  2 +-
 drivers/scsi/cxgb3i/cxgb3i_iscsi.c           |  2 +-
 drivers/scsi/cxgb3i/cxgb3i_pdu.c             |  2 +-
 drivers/scsi/iscsi_tcp.c                     |  4 +--
 drivers/scsi/libiscsi.c                      | 45 ++++++++++++++++++++++------
 include/scsi/libiscsi.h                      |  7 ++++-
 7 files changed, 48 insertions(+), 16 deletions(-)

(limited to 'include')

diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 5f79c0a5faf3..a50cd53e2753 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -404,7 +404,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 	struct Scsi_Host *shost;
 	struct iser_conn *ib_conn;
 
-	shost = iscsi_host_alloc(&iscsi_iser_sht, 0, ISER_DEF_CMD_PER_LUN);
+	shost = iscsi_host_alloc(&iscsi_iser_sht, 0, ISER_DEF_CMD_PER_LUN, 1);
 	if (!shost)
 		return NULL;
 	shost->transportt = iscsi_iser_scsi_transport;
diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c b/drivers/infiniband/ulp/iser/iser_initiator.c
index e209cb8dd948..9de640200ad3 100644
--- a/drivers/infiniband/ulp/iser/iser_initiator.c
+++ b/drivers/infiniband/ulp/iser/iser_initiator.c
@@ -661,7 +661,7 @@ void iser_snd_completion(struct iser_desc *tx_desc)
 
 	if (resume_tx) {
 		iser_dbg("%ld resuming tx\n",jiffies);
-		scsi_queue_work(conn->session->host, &conn->xmitwork);
+		iscsi_conn_queue_work(conn);
 	}
 
 	if (tx_desc->type == ISCSI_TX_CONTROL) {
diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
index fa2a44f37b36..f6ed9c62efb0 100644
--- a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
+++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
@@ -171,7 +171,7 @@ struct cxgb3i_hba *cxgb3i_hba_host_add(struct cxgb3i_adapter *snic,
 
 	shost = iscsi_host_alloc(&cxgb3i_host_template,
 				 sizeof(struct cxgb3i_hba),
-				 CXGB3I_SCSI_QDEPTH_DFLT);
+				 CXGB3I_SCSI_QDEPTH_DFLT, 1);
 	if (!shost) {
 		cxgb3i_log_info("iscsi_host_alloc failed.\n");
 		return NULL;
diff --git a/drivers/scsi/cxgb3i/cxgb3i_pdu.c b/drivers/scsi/cxgb3i/cxgb3i_pdu.c
index 17115c230d65..7eebc9a7cb35 100644
--- a/drivers/scsi/cxgb3i/cxgb3i_pdu.c
+++ b/drivers/scsi/cxgb3i/cxgb3i_pdu.c
@@ -479,7 +479,7 @@ void cxgb3i_conn_tx_open(struct s3_conn *c3cn)
 	cxgb3i_tx_debug("cn 0x%p.\n", c3cn);
 	if (conn) {
 		cxgb3i_tx_debug("cn 0x%p, cid %d.\n", c3cn, conn->id);
-		scsi_queue_work(conn->session->host, &conn->xmitwork);
+		iscsi_conn_queue_work(conn);
 	}
 }
 
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 9c2e52792bdc..79a706a94c68 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -166,7 +166,7 @@ static void iscsi_sw_tcp_write_space(struct sock *sk)
 
 	tcp_sw_conn->old_write_space(sk);
 	ISCSI_SW_TCP_DBG(conn, "iscsi_write_space\n");
-	scsi_queue_work(conn->session->host, &conn->xmitwork);
+	iscsi_conn_queue_work(conn);
 }
 
 static void iscsi_sw_tcp_conn_set_callbacks(struct iscsi_conn *conn)
@@ -777,7 +777,7 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
 		return NULL;
 	}
 
-	shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, qdepth);
+	shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, qdepth, 1);
 	if (!shost)
 		return NULL;
 	shost->transportt = iscsi_sw_tcp_scsi_transport;
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index a5168a673503..ff891543df22 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -76,6 +76,15 @@ static int iscsi_sna_lte(u32 n1, u32 n2)
 			    (n1 > n2 && (n2 - n1 < SNA32_CHECK)));
 }
 
+inline void iscsi_conn_queue_work(struct iscsi_conn *conn)
+{
+	struct Scsi_Host *shost = conn->session->host;
+	struct iscsi_host *ihost = shost_priv(shost);
+
+	queue_work(ihost->workq, &conn->xmitwork);
+}
+EXPORT_SYMBOL_GPL(iscsi_conn_queue_work);
+
 void
 iscsi_update_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr)
 {
@@ -103,8 +112,7 @@ iscsi_update_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr)
 		if (!list_empty(&session->leadconn->xmitqueue) ||
 		    !list_empty(&session->leadconn->mgmtqueue)) {
 			if (!(session->tt->caps & CAP_DATA_PATH_OFFLOAD))
-				scsi_queue_work(session->host,
-						&session->leadconn->xmitwork);
+				iscsi_conn_queue_work(session->leadconn);
 		}
 	}
 }
@@ -586,7 +594,7 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			goto free_task;
 
 	} else
-		scsi_queue_work(conn->session->host, &conn->xmitwork);
+		iscsi_conn_queue_work(conn);
 
 	return task;
 
@@ -1160,7 +1168,7 @@ void iscsi_requeue_task(struct iscsi_task *task)
 	struct iscsi_conn *conn = task->conn;
 
 	list_move_tail(&task->running, &conn->requeue);
-	scsi_queue_work(conn->session->host, &conn->xmitwork);
+	iscsi_conn_queue_work(conn);
 }
 EXPORT_SYMBOL_GPL(iscsi_requeue_task);
 
@@ -1413,7 +1421,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 			goto prepd_reject;
 		}
 	} else
-		scsi_queue_work(session->host, &conn->xmitwork);
+		iscsi_conn_queue_work(conn);
 
 	session->queued_cmdsn++;
 	spin_unlock(&session->lock);
@@ -1631,9 +1639,12 @@ static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
 
 void iscsi_suspend_tx(struct iscsi_conn *conn)
 {
+	struct Scsi_Host *shost = conn->session->host;
+	struct iscsi_host *ihost = shost_priv(shost);
+
 	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
 	if (!(conn->session->tt->caps & CAP_DATA_PATH_OFFLOAD))
-		scsi_flush_work(conn->session->host);
+		flush_workqueue(ihost->workq);
 }
 EXPORT_SYMBOL_GPL(iscsi_suspend_tx);
 
@@ -1641,7 +1652,7 @@ static void iscsi_start_tx(struct iscsi_conn *conn)
 {
 	clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
 	if (!(conn->session->tt->caps & CAP_DATA_PATH_OFFLOAD))
-		scsi_queue_work(conn->session->host, &conn->xmitwork);
+		iscsi_conn_queue_work(conn);
 }
 
 static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
@@ -2046,12 +2057,14 @@ EXPORT_SYMBOL_GPL(iscsi_host_add);
  * @sht: scsi host template
  * @dd_data_size: driver host data size
  * @qdepth: default device queue depth
+ * @xmit_can_sleep: bool indicating if LLD will queue IO from a work queue
  *
  * This should be called by partial offload and software iscsi drivers.
  * To access the driver specific memory use the iscsi_host_priv() macro.
  */
 struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
-				   int dd_data_size, uint16_t qdepth)
+				   int dd_data_size, uint16_t qdepth,
+				   bool xmit_can_sleep)
 {
 	struct Scsi_Host *shost;
 	struct iscsi_host *ihost;
@@ -2063,13 +2076,25 @@ struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
 	if (qdepth == 0)
 		qdepth = ISCSI_DEF_CMD_PER_LUN;
 	shost->cmd_per_lun = qdepth;
-
 	ihost = shost_priv(shost);
+
+	if (xmit_can_sleep) {
+		snprintf(ihost->workq_name, sizeof(ihost->workq_name),
+			"iscsi_q_%d", shost->host_no);
+		ihost->workq = create_singlethread_workqueue(ihost->workq_name);
+		if (!ihost->workq)
+			goto free_host;
+	}
+
 	spin_lock_init(&ihost->lock);
 	ihost->state = ISCSI_HOST_SETUP;
 	ihost->num_sessions = 0;
 	init_waitqueue_head(&ihost->session_removal_wq);
 	return shost;
+
+free_host:
+	scsi_host_put(shost);
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(iscsi_host_alloc);
 
@@ -2101,6 +2126,8 @@ void iscsi_host_remove(struct Scsi_Host *shost)
 		flush_signals(current);
 
 	scsi_remove_host(shost);
+	if (ihost->workq)
+		destroy_workqueue(ihost->workq);
 }
 EXPORT_SYMBOL_GPL(iscsi_host_remove);
 
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 898de4a73727..b0b8a6992497 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -318,6 +318,9 @@ struct iscsi_host {
 	spinlock_t		lock;
 	int			num_sessions;
 	int			state;
+
+	struct workqueue_struct	*workq;
+	char			workq_name[20];
 };
 
 /*
@@ -343,7 +346,8 @@ extern int iscsi_host_get_param(struct Scsi_Host *shost,
 				enum iscsi_host_param param, char *buf);
 extern int iscsi_host_add(struct Scsi_Host *shost, struct device *pdev);
 extern struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
-					  int dd_data_size, uint16_t qdepth);
+					  int dd_data_size, uint16_t qdepth,
+					  bool xmit_can_sleep);
 extern void iscsi_host_remove(struct Scsi_Host *shost);
 extern void iscsi_host_free(struct Scsi_Host *shost);
 
@@ -379,6 +383,7 @@ extern void iscsi_session_failure(struct iscsi_cls_session *cls_session,
 extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
 				enum iscsi_param param, char *buf);
 extern void iscsi_suspend_tx(struct iscsi_conn *conn);
+extern void iscsi_conn_queue_work(struct iscsi_conn *conn);
 
 #define iscsi_conn_printk(prefix, _c, fmt, a...) \
 	iscsi_cls_conn_printk(prefix, ((struct iscsi_conn *)_c)->cls_conn, \
-- 
cgit v1.2.3


From 4d1083509a69a36cc1394f188b7b8956e5526a16 Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Thu, 5 Mar 2009 14:46:04 -0600
Subject: [SCSI] iscsi lib: remove qdepth param from iscsi host allocation

The qdepth setting was useful when we needed libiscsi to verify
the setting. Now we just need to make sure if older tools
passed in zero then we need to set some default.

So this patch just has us use the sht->cmd_per_lun or if
for LLD does a host per session then we can set it on per
host basis.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/infiniband/ulp/iser/iscsi_iser.c |  2 +-
 drivers/scsi/cxgb3i/cxgb3i_iscsi.c       |  5 ++---
 drivers/scsi/iscsi_tcp.c                 |  3 ++-
 drivers/scsi/libiscsi.c                  | 11 ++++-------
 include/scsi/libiscsi.h                  |  2 +-
 5 files changed, 10 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index a50cd53e2753..6c61ed12f299 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -404,7 +404,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 	struct Scsi_Host *shost;
 	struct iser_conn *ib_conn;
 
-	shost = iscsi_host_alloc(&iscsi_iser_sht, 0, ISER_DEF_CMD_PER_LUN, 1);
+	shost = iscsi_host_alloc(&iscsi_iser_sht, 0, 1);
 	if (!shost)
 		return NULL;
 	shost->transportt = iscsi_iser_scsi_transport;
diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
index f6ed9c62efb0..307f55e329f5 100644
--- a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
+++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
@@ -170,8 +170,7 @@ struct cxgb3i_hba *cxgb3i_hba_host_add(struct cxgb3i_adapter *snic,
 	int err;
 
 	shost = iscsi_host_alloc(&cxgb3i_host_template,
-				 sizeof(struct cxgb3i_hba),
-				 CXGB3I_SCSI_QDEPTH_DFLT, 1);
+				 sizeof(struct cxgb3i_hba), 1);
 	if (!shost) {
 		cxgb3i_log_info("iscsi_host_alloc failed.\n");
 		return NULL;
@@ -843,7 +842,7 @@ static struct scsi_host_template cxgb3i_host_template = {
 	.can_queue		= CXGB3I_SCSI_QDEPTH_DFLT - 1,
 	.sg_tablesize		= SG_ALL,
 	.max_sectors		= 0xFFFF,
-	.cmd_per_lun		= ISCSI_DEF_CMD_PER_LUN,
+	.cmd_per_lun		= CXGB3I_SCSI_QDEPTH_DFLT,
 	.eh_abort_handler	= iscsi_eh_abort,
 	.eh_device_reset_handler = iscsi_eh_device_reset,
 	.eh_target_reset_handler = iscsi_eh_target_reset,
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 79a706a94c68..ad8676c98c68 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -777,10 +777,11 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
 		return NULL;
 	}
 
-	shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, qdepth, 1);
+	shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, 1);
 	if (!shost)
 		return NULL;
 	shost->transportt = iscsi_sw_tcp_scsi_transport;
+	shost->cmd_per_lun = qdepth;
 	shost->max_lun = iscsi_max_lun;
 	shost->max_id = 0;
 	shost->max_channel = 0;
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index ff891543df22..d12f9794fcd0 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -2046,6 +2046,9 @@ int iscsi_host_add(struct Scsi_Host *shost, struct device *pdev)
 	if (!shost->can_queue)
 		shost->can_queue = ISCSI_DEF_XMIT_CMDS_MAX;
 
+	if (!shost->cmd_per_lun)
+		shost->cmd_per_lun = ISCSI_DEF_CMD_PER_LUN;
+
 	if (!shost->transportt->eh_timed_out)
 		shost->transportt->eh_timed_out = iscsi_eh_cmd_timed_out;
 	return scsi_add_host(shost, pdev);
@@ -2056,15 +2059,13 @@ EXPORT_SYMBOL_GPL(iscsi_host_add);
  * iscsi_host_alloc - allocate a host and driver data
  * @sht: scsi host template
  * @dd_data_size: driver host data size
- * @qdepth: default device queue depth
  * @xmit_can_sleep: bool indicating if LLD will queue IO from a work queue
  *
  * This should be called by partial offload and software iscsi drivers.
  * To access the driver specific memory use the iscsi_host_priv() macro.
  */
 struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
-				   int dd_data_size, uint16_t qdepth,
-				   bool xmit_can_sleep)
+				   int dd_data_size, bool xmit_can_sleep)
 {
 	struct Scsi_Host *shost;
 	struct iscsi_host *ihost;
@@ -2072,10 +2073,6 @@ struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
 	shost = scsi_host_alloc(sht, sizeof(struct iscsi_host) + dd_data_size);
 	if (!shost)
 		return NULL;
-
-	if (qdepth == 0)
-		qdepth = ISCSI_DEF_CMD_PER_LUN;
-	shost->cmd_per_lun = qdepth;
 	ihost = shost_priv(shost);
 
 	if (xmit_can_sleep) {
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index b0b8a6992497..84eded91b945 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -346,7 +346,7 @@ extern int iscsi_host_get_param(struct Scsi_Host *shost,
 				enum iscsi_host_param param, char *buf);
 extern int iscsi_host_add(struct Scsi_Host *shost, struct device *pdev);
 extern struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
-					  int dd_data_size, uint16_t qdepth,
+					  int dd_data_size,
 					  bool xmit_can_sleep);
 extern void iscsi_host_remove(struct Scsi_Host *shost);
 extern void iscsi_host_free(struct Scsi_Host *shost);
-- 
cgit v1.2.3


From 40a06e755d8524cd0b24f795e8bdce5ad19fc41b Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Thu, 5 Mar 2009 14:46:05 -0600
Subject: [SCSI] libiscsi: pass session failure a session struct

The api for conn and session failures is akward because
one takes a conn from the lib and one takes a session
from the class. This syncs up the interfaces to use
structs from the lib.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/scsi/libiscsi.c | 5 ++---
 include/scsi/libiscsi.h | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index d12f9794fcd0..d07017911139 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1069,10 +1069,9 @@ struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt)
 }
 EXPORT_SYMBOL_GPL(iscsi_itt_to_ctask);
 
-void iscsi_session_failure(struct iscsi_cls_session *cls_session,
+void iscsi_session_failure(struct iscsi_session *session,
 			   enum iscsi_err err)
 {
-	struct iscsi_session *session = cls_session->dd_data;
 	struct iscsi_conn *conn;
 	struct device *dev;
 	unsigned long flags;
@@ -2097,7 +2096,7 @@ EXPORT_SYMBOL_GPL(iscsi_host_alloc);
 
 static void iscsi_notify_host_removed(struct iscsi_cls_session *cls_session)
 {
-	iscsi_session_failure(cls_session, ISCSI_ERR_INVALID_HOST);
+	iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_INVALID_HOST);
 }
 
 /**
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 84eded91b945..7ffaed2f94dd 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -378,7 +378,7 @@ extern void iscsi_conn_stop(struct iscsi_cls_conn *, int);
 extern int iscsi_conn_bind(struct iscsi_cls_session *, struct iscsi_cls_conn *,
 			   int);
 extern void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err);
-extern void iscsi_session_failure(struct iscsi_cls_session *cls_session,
+extern void iscsi_session_failure(struct iscsi_session *session,
 				  enum iscsi_err err);
 extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
 				enum iscsi_param param, char *buf);
-- 
cgit v1.2.3


From 5e7facb77ff4b6961d936773fb1f175f7abf76b7 Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Thu, 5 Mar 2009 14:46:06 -0600
Subject: [SCSI] iscsi class: remove host no argument from session creation
 callout

We do not need to have llds set the host no for the session's
parent, because we know the session's parent is going to be
the host. This removes it from the session creation callback
and converts the drivers.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/infiniband/ulp/iser/iscsi_iser.c | 3 +--
 drivers/scsi/cxgb3i/cxgb3i_iscsi.c       | 5 +----
 drivers/scsi/iscsi_tcp.c                 | 4 +---
 drivers/scsi/scsi_transport_iscsi.c      | 7 ++++---
 include/scsi/scsi_transport_iscsi.h      | 2 +-
 5 files changed, 8 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 6c61ed12f299..13d7674b293d 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -397,7 +397,7 @@ static void iscsi_iser_session_destroy(struct iscsi_cls_session *cls_session)
 static struct iscsi_cls_session *
 iscsi_iser_session_create(struct iscsi_endpoint *ep,
 			  uint16_t cmds_max, uint16_t qdepth,
-			  uint32_t initial_cmdsn, uint32_t *hostno)
+			  uint32_t initial_cmdsn)
 {
 	struct iscsi_cls_session *cls_session;
 	struct iscsi_session *session;
@@ -423,7 +423,6 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 	if (iscsi_host_add(shost,
 			   ep ? ib_conn->device->ib_device->dma_device : NULL))
 		goto free_host;
-	*hostno = shost->host_no;
 
 	/*
 	 * we do not support setting can_queue cmd_per_lun from userspace yet
diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
index 307f55e329f5..ae4a93090725 100644
--- a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
+++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
@@ -334,13 +334,12 @@ static void cxgb3i_ep_disconnect(struct iscsi_endpoint *ep)
  * @cmds_max:		max # of commands
  * @qdepth:		scsi queue depth
  * @initial_cmdsn:	initial iscsi CMDSN for this session
- * @host_no:		pointer to return host no
  *
  * Creates a new iSCSI session
  */
 static struct iscsi_cls_session *
 cxgb3i_session_create(struct iscsi_endpoint *ep, u16 cmds_max, u16 qdepth,
-		      u32 initial_cmdsn, u32 *host_no)
+		      u32 initial_cmdsn)
 {
 	struct cxgb3i_endpoint *cep;
 	struct cxgb3i_hba *hba;
@@ -359,8 +358,6 @@ cxgb3i_session_create(struct iscsi_endpoint *ep, u16 cmds_max, u16 qdepth,
 	cxgb3i_api_debug("ep 0x%p, cep 0x%p, hba 0x%p.\n", ep, cep, hba);
 	BUG_ON(hba != iscsi_host_priv(shost));
 
-	*host_no = shost->host_no;
-
 	cls_session = iscsi_session_setup(&cxgb3i_iscsi_transport, shost,
 					  cmds_max,
 					  sizeof(struct iscsi_tcp_task) +
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index ad8676c98c68..b3e5e08e44ab 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -765,8 +765,7 @@ iscsi_sw_tcp_conn_get_stats(struct iscsi_cls_conn *cls_conn,
 
 static struct iscsi_cls_session *
 iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
-			    uint16_t qdepth, uint32_t initial_cmdsn,
-			    uint32_t *hostno)
+			    uint16_t qdepth, uint32_t initial_cmdsn)
 {
 	struct iscsi_cls_session *cls_session;
 	struct iscsi_session *session;
@@ -789,7 +788,6 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
 
 	if (iscsi_host_add(shost, NULL))
 		goto free_host;
-	*hostno = shost->host_no;
 
 	cls_session = iscsi_session_setup(&iscsi_sw_tcp_transport, shost,
 					  cmds_max,
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 4f22f9e37c5a..2340e2c5c021 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1197,14 +1197,15 @@ iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_endpoint *ep,
 {
 	struct iscsi_transport *transport = priv->iscsi_transport;
 	struct iscsi_cls_session *session;
-	uint32_t host_no;
+	struct Scsi_Host *shost;
 
 	session = transport->create_session(ep, cmds_max, queue_depth,
-					    initial_cmdsn, &host_no);
+					    initial_cmdsn);
 	if (!session)
 		return -ENOMEM;
 
-	ev->r.c_session_ret.host_no = host_no;
+	shost = iscsi_session_to_shost(session);
+	ev->r.c_session_ret.host_no = shost->host_no;
 	ev->r.c_session_ret.sid = session->sid;
 	return 0;
 }
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index ac29fbd35544..457588e1119b 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -88,7 +88,7 @@ struct iscsi_transport {
 	uint64_t host_param_mask;
 	struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep,
 					uint16_t cmds_max, uint16_t qdepth,
-					uint32_t sn, uint32_t *hn);
+					uint32_t sn);
 	void (*destroy_session) (struct iscsi_cls_session *session);
 	struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess,
 				uint32_t cid);
-- 
cgit v1.2.3


From 4ab3b73f85ca2e99d9dbdb55ac13e57327a7e915 Mon Sep 17 00:00:00 2001
From: Douglas Gilbert <dgilbert@interlog.com>
Date: Mon, 9 Mar 2009 10:51:38 -0400
Subject: [SCSI] bsg: add linux/types.h include to bsg.h

Since bsg.h has recently been added to the list of kernel
headers that should be exported to the user space, this
attachment makes bsg.h more user space "friendly".
Specifically autotools dislike headers that don't compile
freestanding and bsg.h's use of __u32 types (and friends)
are not standard C (C90 or C99). The inclusion of
linux/types.h fixes that.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/linux/bsg.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include')

diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index cf0303a60611..6c0a00dfa90c 100644
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -1,6 +1,8 @@
 #ifndef BSG_H
 #define BSG_H
 
+#include <linux/types.h>
+
 #define BSG_PROTOCOL_SCSI		0
 
 #define BSG_SUB_PROTOCOL_SCSI_CMD	0
-- 
cgit v1.2.3


From dec3f95959bff957f5bcbf16c2a2823f7e33d1e7 Mon Sep 17 00:00:00 2001
From: Eric Moore <eric.moore@lsi.com>
Date: Mon, 9 Mar 2009 01:27:49 -0600
Subject: [SCSI] mpt2sas: add MPT2SAS_MINOR(221) to miscdevice.h

Signed-off-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/linux/miscdevice.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index a820f816a49e..beb6ec99cfef 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -26,6 +26,7 @@
 #define TUN_MINOR		200
 #define MWAVE_MINOR		219	/* ACP/Mwave Modem */
 #define MPT_MINOR		220
+#define MPT2SAS_MINOR		221
 #define HPET_MINOR		228
 #define FUSE_MINOR		229
 #define KVM_MINOR		232
-- 
cgit v1.2.3


From a390d1f379cf821248b735f43d2e1147ebb8241d Mon Sep 17 00:00:00 2001
From: Marcin Slusarz <marcin.slusarz@gmail.com>
Date: Fri, 13 Mar 2009 15:41:19 -0700
Subject: phylib: convert state_queue work to delayed_work

It closes a race in phy_stop_machine when reprogramming of phy_timer
(from phy_state_machine) happens between del_timer_sync and cancel_work_sync.

Without this change it could lead to crash if phy_device would be freed after
phy_stop_machine (timer would fire and schedule freed work).

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/phy.c | 41 +++++++++++------------------------------
 include/linux/phy.h   |  3 +--
 2 files changed, 12 insertions(+), 32 deletions(-)

(limited to 'include')

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index e4ede6080c9d..58b73b08dde0 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -414,7 +414,6 @@ EXPORT_SYMBOL(phy_start_aneg);
 
 static void phy_change(struct work_struct *work);
 static void phy_state_machine(struct work_struct *work);
-static void phy_timer(unsigned long data);
 
 /**
  * phy_start_machine - start PHY state machine tracking
@@ -434,11 +433,8 @@ void phy_start_machine(struct phy_device *phydev,
 {
 	phydev->adjust_state = handler;
 
-	INIT_WORK(&phydev->state_queue, phy_state_machine);
-	init_timer(&phydev->phy_timer);
-	phydev->phy_timer.function = &phy_timer;
-	phydev->phy_timer.data = (unsigned long) phydev;
-	mod_timer(&phydev->phy_timer, jiffies + HZ);
+	INIT_DELAYED_WORK(&phydev->state_queue, phy_state_machine);
+	schedule_delayed_work(&phydev->state_queue, jiffies + HZ);
 }
 
 /**
@@ -451,8 +447,7 @@ void phy_start_machine(struct phy_device *phydev,
  */
 void phy_stop_machine(struct phy_device *phydev)
 {
-	del_timer_sync(&phydev->phy_timer);
-	cancel_work_sync(&phydev->state_queue);
+	cancel_delayed_work_sync(&phydev->state_queue);
 
 	mutex_lock(&phydev->lock);
 	if (phydev->state > PHY_UP)
@@ -680,11 +675,9 @@ static void phy_change(struct work_struct *work)
 	if (err)
 		goto irq_enable_err;
 
-	/* Stop timer and run the state queue now.  The work function for
-	 * state_queue will start the timer up again.
-	 */
-	del_timer(&phydev->phy_timer);
-	schedule_work(&phydev->state_queue);
+	/* reschedule state queue work to run as soon as possible */
+	cancel_delayed_work_sync(&phydev->state_queue);
+	schedule_delayed_work(&phydev->state_queue, 0);
 
 	return;
 
@@ -761,14 +754,13 @@ EXPORT_SYMBOL(phy_start);
 /**
  * phy_state_machine - Handle the state machine
  * @work: work_struct that describes the work to be done
- *
- * Description: Scheduled by the state_queue workqueue each time
- *   phy_timer is triggered.
  */
 static void phy_state_machine(struct work_struct *work)
 {
+	struct delayed_work *dwork =
+			container_of(work, struct delayed_work, work);
 	struct phy_device *phydev =
-			container_of(work, struct phy_device, state_queue);
+			container_of(dwork, struct phy_device, state_queue);
 	int needs_aneg = 0;
 	int err = 0;
 
@@ -946,17 +938,6 @@ static void phy_state_machine(struct work_struct *work)
 	if (err < 0)
 		phy_error(phydev);
 
-	mod_timer(&phydev->phy_timer, jiffies + PHY_STATE_TIME * HZ);
-}
-
-/* PHY timer which schedules the state machine work */
-static void phy_timer(unsigned long data)
-{
-	struct phy_device *phydev = (struct phy_device *)data;
-
-	/*
-	 * PHY I/O operations can potentially sleep so we ensure that
-	 * it's done from a process context
-	 */
-	schedule_work(&phydev->state_queue);
+	schedule_delayed_work(&phydev->state_queue,
+				jiffies + PHY_STATE_TIME * HZ);
 }
diff --git a/include/linux/phy.h b/include/linux/phy.h
index d7e54d98869f..32cf14a4b034 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -315,8 +315,7 @@ struct phy_device {
 
 	/* Interrupt and Polling infrastructure */
 	struct work_struct phy_queue;
-	struct work_struct state_queue;
-	struct timer_list phy_timer;
+	struct delayed_work state_queue;
 	atomic_t irq_disable;
 
 	struct mutex lock;
-- 
cgit v1.2.3


From 9c705260feea6ae329bc6b6d5f6d2ef0227eda0a Mon Sep 17 00:00:00 2001
From: Gabriele Paoloni <gabriele.paoloni@intel.com>
Date: Fri, 13 Mar 2009 16:09:12 -0700
Subject: ppp: ppp_mp_explode() redesign

I found the PPP subsystem to not work properly when connecting channels
with different speeds to the same bundle.

Problem Description:

As the "ppp_mp_explode" function fragments the sk_buff buffer evenly
among the PPP channels that are connected to a certain PPP unit to
make up a bundle, if we are transmitting using an upper layer protocol
that requires an Ack before sending the next packet (like TCP/IP for
example), we will have a bandwidth bottleneck on the slowest channel
of the bundle.

Let's clarify by an example. Let's consider a scenario where we have
two PPP links making up a bundle: a slow link (10KB/sec) and a fast
link (1000KB/sec) working at the best (full bandwidth). On the top we
have a TCP/IP stack sending a 1000 Bytes sk_buff buffer down to the
PPP subsystem. The "ppp_mp_explode" function will divide the buffer in
two fragments of 500B each (we are neglecting all the headers, crc,
flags etc?.). Before the TCP/IP stack sends out the next buffer, it
will have to wait for the ACK response from the remote peer, so it
will have to wait for both fragments to have been sent over the two
PPP links, received by the remote peer and reconstructed. The
resulting behaviour is that, rather than having a bundle working
@1010KB/sec (the sum of the channels bandwidths), we'll have a bundle
working @20KB/sec (the double of the slowest channels bandwidth).


Problem Solution:

The problem has been solved by redesigning the "ppp_mp_explode"
function in such a way to make it split the sk_buff buffer according
to the speeds of the underlying PPP channels (the speeds of the serial
interfaces respectively attached to the PPP channels). Referring to
the above example, the redesigned "ppp_mp_explode" function will now
divide the 1000 Bytes buffer into two fragments whose sizes are set
according to the speeds of the channels where they are going to be
sent on (e.g .  10 Byets on 10KB/sec channel and 990 Bytes on
1000KB/sec channel).  The reworked function grants the same
performances of the original one in optimal working conditions (i.e. a
bundle made up of PPP links all working at the same speed), while
greatly improving performances on the bundles made up of channels
working at different speeds.

Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ppp_async.c     |   3 +
 drivers/net/ppp_generic.c   | 211 +++++++++++++++++++++++++-------------------
 drivers/net/ppp_synctty.c   |   3 +
 include/linux/ppp_channel.h |   2 +-
 4 files changed, 127 insertions(+), 92 deletions(-)

(limited to 'include')

diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c
index 5de6fedd1d76..6de8399d6dd9 100644
--- a/drivers/net/ppp_async.c
+++ b/drivers/net/ppp_async.c
@@ -157,6 +157,7 @@ ppp_asynctty_open(struct tty_struct *tty)
 {
 	struct asyncppp *ap;
 	int err;
+	int speed;
 
 	if (tty->ops->write == NULL)
 		return -EOPNOTSUPP;
@@ -187,6 +188,8 @@ ppp_asynctty_open(struct tty_struct *tty)
 	ap->chan.private = ap;
 	ap->chan.ops = &async_ops;
 	ap->chan.mtu = PPP_MRU;
+	speed = tty_get_baud_rate(tty);
+	ap->chan.speed = speed;
 	err = ppp_register_channel(&ap->chan);
 	if (err)
 		goto out_free;
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 42d455578453..8ee91421db12 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -167,6 +167,7 @@ struct channel {
 	u8		avail;		/* flag used in multilink stuff */
 	u8		had_frag;	/* >= 1 fragments have been sent */
 	u32		lastseq;	/* MP: last sequence # received */
+	int     speed;		/* speed of the corresponding ppp channel*/
 #endif /* CONFIG_PPP_MULTILINK */
 };
 
@@ -1307,138 +1308,181 @@ ppp_push(struct ppp *ppp)
  */
 static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
 {
-	int len, fragsize;
-	int i, bits, hdrlen, mtu;
-	int flen;
-	int navail, nfree;
-	int nbigger;
+	int	len, totlen;
+	int	i, bits, hdrlen, mtu;
+	int	flen;
+	int	navail,	nfree, nzero;
+	int	nbigger;
+	int	totspeed;
+	int	totfree;
 	unsigned char *p, *q;
 	struct list_head *list;
 	struct channel *pch;
 	struct sk_buff *frag;
 	struct ppp_channel *chan;
 
-	nfree = 0;	/* # channels which have no packet already queued */
+	totspeed = 0; /*total bitrate of the bundle*/
+	nfree =	0;	/* # channels which	have no	packet already queued */
 	navail = 0;	/* total # of usable channels (not deregistered) */
+	nzero =	0; /* number of	channels with zero speed associated*/
+	totfree	= 0; /*total # of channels available and
+				  *having no queued packets before
+				  *starting the fragmentation*/
+
 	hdrlen = (ppp->flags & SC_MP_XSHORTSEQ)? MPHDRLEN_SSN: MPHDRLEN;
-	i = 0;
-	list_for_each_entry(pch, &ppp->channels, clist) {
+	i =	0;
+	list_for_each_entry(pch, &ppp->channels, clist)	{
 		navail += pch->avail = (pch->chan != NULL);
-		if (pch->avail) {
+		pch->speed = pch->chan->speed;
+		if (pch->avail)	{
 			if (skb_queue_empty(&pch->file.xq) ||
-			    !pch->had_frag) {
-				pch->avail = 2;
-				++nfree;
-			}
-			if (!pch->had_frag && i < ppp->nxchan)
-				ppp->nxchan = i;
+				!pch->had_frag)	{
+					if (pch->speed == 0)
+						nzero++;
+					else
+						totspeed += pch->speed;
+
+					pch->avail = 2;
+					++nfree;
+					++totfree;
+				}
+			if (!pch->had_frag && i	< ppp->nxchan)
+				ppp->nxchan	= i;
 		}
 		++i;
 	}
-
 	/*
-	 * Don't start sending this packet unless at least half of
-	 * the channels are free.  This gives much better TCP
-	 * performance if we have a lot of channels.
+	 * Don't start sending this	packet unless at least half	of
+	 * the channels	are	free.  This	gives much better TCP
+	 * performance if we have a	lot	of channels.
 	 */
-	if (nfree == 0 || nfree < navail / 2)
-		return 0;	/* can't take now, leave it in xmit_pending */
+	if (nfree == 0 || nfree	< navail / 2)
+		return 0; /* can't take now, leave it in xmit_pending	*/
 
 	/* Do protocol field compression (XXX this should be optional) */
-	p = skb->data;
-	len = skb->len;
+	p =	skb->data;
+	len	= skb->len;
 	if (*p == 0) {
 		++p;
 		--len;
 	}
 
-	/*
-	 * Decide on fragment size.
-	 * We create a fragment for each free channel regardless of
-	 * how small they are (i.e. even 0 length) in order to minimize
-	 * the time that it will take to detect when a channel drops
-	 * a fragment.
-	 */
-	fragsize = len;
-	if (nfree > 1)
-		fragsize = DIV_ROUND_UP(fragsize, nfree);
-	/* nbigger channels get fragsize bytes, the rest get fragsize-1,
-	   except if nbigger==0, then they all get fragsize. */
-	nbigger = len % nfree;
-
-	/* skip to the channel after the one we last used
-	   and start at that one */
+	totlen = len;
+	nbigger	= len %	nfree;
+
+	/* skip	to the channel after the one we	last used
+	   and start at	that one */
 	list = &ppp->channels;
-	for (i = 0; i < ppp->nxchan; ++i) {
+	for	(i = 0;	i <	ppp->nxchan; ++i) {
 		list = list->next;
-		if (list == &ppp->channels) {
-			i = 0;
+		if (list ==	&ppp->channels)	{
+			i =	0;
 			break;
 		}
 	}
 
-	/* create a fragment for each channel */
+	/* create a	fragment for each channel */
 	bits = B;
-	while (nfree > 0 || len > 0) {
+	while (nfree > 0 &&	len	> 0) {
 		list = list->next;
-		if (list == &ppp->channels) {
-			i = 0;
+		if (list ==	&ppp->channels)	{
+			i =	0;
 			continue;
 		}
-		pch = list_entry(list, struct channel, clist);
+		pch	= list_entry(list, struct channel, clist);
 		++i;
 		if (!pch->avail)
 			continue;
 
 		/*
-		 * Skip this channel if it has a fragment pending already and
-		 * we haven't given a fragment to all of the free channels.
+		 * Skip	this channel if	it has a fragment pending already and
+		 * we haven't given	a fragment to all of the free channels.
 		 */
 		if (pch->avail == 1) {
-			if (nfree > 0)
+			if (nfree >	0)
 				continue;
 		} else {
-			--nfree;
 			pch->avail = 1;
 		}
 
 		/* check the channel's mtu and whether it is still attached. */
 		spin_lock_bh(&pch->downl);
 		if (pch->chan == NULL) {
-			/* can't use this channel, it's being deregistered */
+			/* can't use this channel, it's	being deregistered */
+			if (pch->speed == 0)
+				nzero--;
+			else
+				totspeed -=	pch->speed;
+
 			spin_unlock_bh(&pch->downl);
 			pch->avail = 0;
-			if (--navail == 0)
+			totlen = len;
+			totfree--;
+			nfree--;
+			if (--navail ==	0)
 				break;
 			continue;
 		}
 
 		/*
-		 * Create a fragment for this channel of
-		 * min(max(mtu+2-hdrlen, 4), fragsize, len) bytes.
-		 * If mtu+2-hdrlen < 4, that is a ridiculously small
-		 * MTU, so we use mtu = 2 + hdrlen.
+		*if the channel speed is not set divide
+		*the packet	evenly among the free channels;
+		*otherwise divide it according to the speed
+		*of the channel we are going to transmit on
+		*/
+		if (pch->speed == 0) {
+			flen = totlen/nfree	;
+			if (nbigger > 0) {
+				flen++;
+				nbigger--;
+			}
+		} else {
+			flen = (((totfree - nzero)*(totlen + hdrlen*totfree)) /
+				((totspeed*totfree)/pch->speed)) - hdrlen;
+			if (nbigger > 0) {
+				flen += ((totfree - nzero)*pch->speed)/totspeed;
+				nbigger -= ((totfree - nzero)*pch->speed)/
+							totspeed;
+			}
+		}
+		nfree--;
+
+		/*
+		 *check	if we are on the last channel or
+		 *we exceded the lenght	of the data	to
+		 *fragment
+		 */
+		if ((nfree == 0) || (flen > len))
+			flen = len;
+		/*
+		 *it is not worth to tx on slow channels:
+		 *in that case from the resulting flen according to the
+		 *above formula will be equal or less than zero.
+		 *Skip the channel in this case
 		 */
-		if (fragsize > len)
-			fragsize = len;
-		flen = fragsize;
-		mtu = pch->chan->mtu + 2 - hdrlen;
-		if (mtu < 4)
-			mtu = 4;
+		if (flen <=	0) {
+			pch->avail = 2;
+			spin_unlock_bh(&pch->downl);
+			continue;
+		}
+
+		mtu	= pch->chan->mtu + 2 - hdrlen;
+		if (mtu	< 4)
+			mtu	= 4;
 		if (flen > mtu)
 			flen = mtu;
-		if (flen == len && nfree == 0)
-			bits |= E;
-		frag = alloc_skb(flen + hdrlen + (flen == 0), GFP_ATOMIC);
+		if (flen ==	len)
+			bits |=	E;
+		frag = alloc_skb(flen +	hdrlen + (flen == 0), GFP_ATOMIC);
 		if (!frag)
 			goto noskb;
-		q = skb_put(frag, flen + hdrlen);
+		q =	skb_put(frag, flen + hdrlen);
 
-		/* make the MP header */
+		/* make	the	MP header */
 		q[0] = PPP_MP >> 8;
 		q[1] = PPP_MP;
 		if (ppp->flags & SC_MP_XSHORTSEQ) {
-			q[2] = bits + ((ppp->nxseq >> 8) & 0xf);
+			q[2] = bits	+ ((ppp->nxseq >> 8) & 0xf);
 			q[3] = ppp->nxseq;
 		} else {
 			q[2] = bits;
@@ -1447,43 +1491,28 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
 			q[5] = ppp->nxseq;
 		}
 
-		/*
-		 * Copy the data in.
-		 * Unfortunately there is a bug in older versions of
-		 * the Linux PPP multilink reconstruction code where it
-		 * drops 0-length fragments.  Therefore we make sure the
-		 * fragment has at least one byte of data.  Any bytes
-		 * we add in this situation will end up as padding on the
-		 * end of the reconstructed packet.
-		 */
-		if (flen == 0)
-			*skb_put(frag, 1) = 0;
-		else
-			memcpy(q + hdrlen, p, flen);
+		memcpy(q + hdrlen, p, flen);
 
 		/* try to send it down the channel */
 		chan = pch->chan;
-		if (!skb_queue_empty(&pch->file.xq) ||
-		    !chan->ops->start_xmit(chan, frag))
+		if (!skb_queue_empty(&pch->file.xq)	||
+			!chan->ops->start_xmit(chan, frag))
 			skb_queue_tail(&pch->file.xq, frag);
-		pch->had_frag = 1;
+		pch->had_frag =	1;
 		p += flen;
-		len -= flen;
+		len	-= flen;
 		++ppp->nxseq;
 		bits = 0;
 		spin_unlock_bh(&pch->downl);
-
-		if (--nbigger == 0 && fragsize > 0)
-			--fragsize;
 	}
-	ppp->nxchan = i;
+	ppp->nxchan	= i;
 
 	return 1;
 
  noskb:
 	spin_unlock_bh(&pch->downl);
 	if (ppp->debug & 1)
-		printk(KERN_ERR "PPP: no memory (fragment)\n");
+		printk(KERN_ERR	"PPP: no memory	(fragment)\n");
 	++ppp->dev->stats.tx_errors;
 	++ppp->nxseq;
 	return 1;	/* abandon the frame */
diff --git a/drivers/net/ppp_synctty.c b/drivers/net/ppp_synctty.c
index 3ea791d16b00..d2fa2db13586 100644
--- a/drivers/net/ppp_synctty.c
+++ b/drivers/net/ppp_synctty.c
@@ -206,6 +206,7 @@ ppp_sync_open(struct tty_struct *tty)
 {
 	struct syncppp *ap;
 	int err;
+	int speed;
 
 	if (tty->ops->write == NULL)
 		return -EOPNOTSUPP;
@@ -234,6 +235,8 @@ ppp_sync_open(struct tty_struct *tty)
 	ap->chan.ops = &sync_ops;
 	ap->chan.mtu = PPP_MRU;
 	ap->chan.hdrlen = 2;	/* for A/C bytes */
+	speed = tty_get_baud_rate(tty);
+	ap->chan.speed = speed;
 	err = ppp_register_channel(&ap->chan);
 	if (err)
 		goto out_free;
diff --git a/include/linux/ppp_channel.h b/include/linux/ppp_channel.h
index 9d64bdf14770..0d3fa63e90ea 100644
--- a/include/linux/ppp_channel.h
+++ b/include/linux/ppp_channel.h
@@ -40,8 +40,8 @@ struct ppp_channel {
 	int		mtu;		/* max transmit packet size */
 	int		hdrlen;		/* amount of headroom channel needs */
 	void		*ppp;		/* opaque to channel */
-	/* the following are not used at present */
 	int		speed;		/* transfer rate (bytes/second) */
+	/* the following is not used at present */
 	int		latency;	/* overhead time in milliseconds */
 };
 
-- 
cgit v1.2.3


From 895791dac6946d535991edd11341046f8e85ea77 Mon Sep 17 00:00:00 2001
From: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
Date: Fri, 13 Mar 2009 16:35:44 -0700
Subject: VM, x86, PAT: add a new vm flag to track full pfnmap at mmap

Impact: cleanup

Add a new vm flag VM_PFN_AT_MMAP to identify a PFNMAP that is
fully mapped with remap_pfn_range. Patch removes the overloading
of VM_INSERTPAGE from the earlier patch.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Nick Piggin <npiggin@suse.de>
LKML-Reference: <20090313233543.GA19909@linux-os.sc.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/mm.h | 16 +++-------------
 mm/memory.c        |  4 ++--
 2 files changed, 5 insertions(+), 15 deletions(-)

(limited to 'include')

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3daa05feed9f..b1ea37fc7a24 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -98,12 +98,13 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_HUGETLB	0x00400000	/* Huge TLB Page VM */
 #define VM_NONLINEAR	0x00800000	/* Is non-linear (remap_file_pages) */
 #define VM_MAPPED_COPY	0x01000000	/* T if mapped copy of data (nommu mmap) */
-#define VM_INSERTPAGE	0x02000000	/* The vma has had "vm_insert_page()" done on it. Refer note in VM_PFNMAP_AT_MMAP below */
+#define VM_INSERTPAGE	0x02000000	/* The vma has had "vm_insert_page()" done on it */
 #define VM_ALWAYSDUMP	0x04000000	/* Always include in core dumps */
 
 #define VM_CAN_NONLINEAR 0x08000000	/* Has ->fault & does nonlinear pages */
 #define VM_MIXEDMAP	0x10000000	/* Can contain "struct page" and pure PFN pages */
 #define VM_SAO		0x20000000	/* Strong Access Ordering (powerpc) */
+#define VM_PFN_AT_MMAP	0x40000000	/* PFNMAP vma that is fully mapped at mmap time */
 
 #ifndef VM_STACK_DEFAULT_FLAGS		/* arch can override this */
 #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
@@ -126,17 +127,6 @@ extern unsigned int kobjsize(const void *objp);
  */
 #define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP)
 
-/*
- * pfnmap vmas that are fully mapped at mmap time (not mapped on fault).
- * Used by x86 PAT to identify such PFNMAP mappings and optimize their handling.
- * Note VM_INSERTPAGE flag is overloaded here. i.e,
- * VM_INSERTPAGE && !VM_PFNMAP implies
- *     The vma has had "vm_insert_page()" done on it
- * VM_INSERTPAGE && VM_PFNMAP implies
- *     The vma is PFNMAP with full mapping at mmap time
- */
-#define VM_PFNMAP_AT_MMAP (VM_INSERTPAGE | VM_PFNMAP)
-
 /*
  * mapping from the currently active vm_flags protection bits (the
  * low four bits) to a page protection mask..
@@ -156,7 +146,7 @@ extern pgprot_t protection_map[16];
  */
 static inline int is_linear_pfn_mapping(struct vm_area_struct *vma)
 {
-	return ((vma->vm_flags & VM_PFNMAP_AT_MMAP) == VM_PFNMAP_AT_MMAP);
+	return (vma->vm_flags & VM_PFN_AT_MMAP);
 }
 
 static inline int is_pfn_mapping(struct vm_area_struct *vma)
diff --git a/mm/memory.c b/mm/memory.c
index d7df5babcba9..2032ad2fc34b 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1667,7 +1667,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
 	 */
 	if (addr == vma->vm_start && end == vma->vm_end) {
 		vma->vm_pgoff = pfn;
-		vma->vm_flags |= VM_PFNMAP_AT_MMAP;
+		vma->vm_flags |= VM_PFN_AT_MMAP;
 	} else if (is_cow_mapping(vma->vm_flags))
 		return -EINVAL;
 
@@ -1680,7 +1680,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
 		 * needed from higher level routine calling unmap_vmas
 		 */
 		vma->vm_flags &= ~(VM_IO | VM_RESERVED | VM_PFNMAP);
-		vma->vm_flags &= ~VM_PFNMAP_AT_MMAP;
+		vma->vm_flags &= ~VM_PFN_AT_MMAP;
 		return -EINVAL;
 	}
 
-- 
cgit v1.2.3


From 87092698c665e0a358caf9825ae13114343027e8 Mon Sep 17 00:00:00 2001
From: un'ichi Nomura <j-nomura@ce.jp.nec.com>
Date: Mon, 9 Mar 2009 10:40:52 +0100
Subject: block: Add gfp_mask parameter to bio_integrity_clone()

Stricter gfp_mask might be required for clone allocation.
For example, request-based dm may clone bio in interrupt context
so it has to use GFP_ATOMIC.

Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/bio-integrity.c  | 5 +++--
 fs/bio.c            | 2 +-
 include/linux/bio.h | 4 ++--
 3 files changed, 6 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 549b0144da11..fe2b1aa2464e 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -685,19 +685,20 @@ EXPORT_SYMBOL(bio_integrity_split);
  * bio_integrity_clone - Callback for cloning bios with integrity metadata
  * @bio:	New bio
  * @bio_src:	Original bio
+ * @gfp_mask:	Memory allocation mask
  * @bs:		bio_set to allocate bip from
  *
  * Description:	Called to allocate a bip when cloning a bio
  */
 int bio_integrity_clone(struct bio *bio, struct bio *bio_src,
-			struct bio_set *bs)
+			gfp_t gfp_mask, struct bio_set *bs)
 {
 	struct bio_integrity_payload *bip_src = bio_src->bi_integrity;
 	struct bio_integrity_payload *bip;
 
 	BUG_ON(bip_src == NULL);
 
-	bip = bio_integrity_alloc_bioset(bio, GFP_NOIO, bip_src->bip_vcnt, bs);
+	bip = bio_integrity_alloc_bioset(bio, gfp_mask, bip_src->bip_vcnt, bs);
 
 	if (bip == NULL)
 		return -EIO;
diff --git a/fs/bio.c b/fs/bio.c
index 124b95c4d582..cf747378b977 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -463,7 +463,7 @@ struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask)
 	if (bio_integrity(bio)) {
 		int ret;
 
-		ret = bio_integrity_clone(b, bio, fs_bio_set);
+		ret = bio_integrity_clone(b, bio, gfp_mask, fs_bio_set);
 
 		if (ret < 0)
 			return NULL;
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 1b16108a5417..d8bd43bfdcf5 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -531,7 +531,7 @@ extern void bio_integrity_endio(struct bio *, int);
 extern void bio_integrity_advance(struct bio *, unsigned int);
 extern void bio_integrity_trim(struct bio *, unsigned int, unsigned int);
 extern void bio_integrity_split(struct bio *, struct bio_pair *, int);
-extern int bio_integrity_clone(struct bio *, struct bio *, struct bio_set *);
+extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t, struct bio_set *);
 extern int bioset_integrity_create(struct bio_set *, int);
 extern void bioset_integrity_free(struct bio_set *);
 extern void bio_integrity_init_slab(void);
@@ -542,7 +542,7 @@ extern void bio_integrity_init_slab(void);
 #define bioset_integrity_create(a, b)	(0)
 #define bio_integrity_prep(a)		(0)
 #define bio_integrity_enabled(a)	(0)
-#define bio_integrity_clone(a, b, c)	(0)
+#define bio_integrity_clone(a, b, c,d )	(0)
 #define bioset_integrity_free(a)	do { } while (0)
 #define bio_integrity_free(a, b)	do { } while (0)
 #define bio_integrity_endio(a, b)	do { } while (0)
-- 
cgit v1.2.3


From 26ade896b6ba3fd017ef4a26e71e7b7569222cb6 Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Sun, 15 Mar 2009 14:10:54 +0100
Subject: ASoC: Allow choice of ac97 gpio reset line

As the PXA27x series allow 2 gpios to reset the ac97 bus,
allow through platform data configuration the definition of
the correct gpio which will reset the AC97 bus.

This comes from a silicon defect on the PXA27x series, where
the gpio must be manually controlled in warm reset cases.

Signed-off-by: Robert Jarzmik <rjarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 include/sound/pxa2xx-lib.h  | 15 ++++++++++
 sound/arm/pxa2xx-ac97-lib.c | 71 +++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 81 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 2fd3d251d9a5..2c894b600e5b 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -42,4 +42,19 @@ extern int pxa2xx_ac97_hw_resume(void);
 extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
 extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
 
+/* AC97 platform_data */
+/**
+ * struct pxa2xx_ac97_platform_data - pxa ac97 platform data
+ * @reset_gpio: AC97 reset gpio (normally gpio113 or gpio95)
+ *              a -1 value means no gpio will be used for reset
+ *
+ * Platform data should only be specified for pxa27x CPUs where a silicon bug
+ * prevents correct operation of the reset line. If not specified, the default
+ * behaviour is to consider gpio 113 as the AC97 reset line, which is the
+ * default on most boards.
+ */
+struct pxa2xx_ac97_platform_data {
+	int reset_gpio;
+};
+
 #endif
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 35afd0c33be5..d721ea7cae8f 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -31,6 +31,7 @@ static DECLARE_WAIT_QUEUE_HEAD(gsr_wq);
 static volatile long gsr_bits;
 static struct clk *ac97_clk;
 static struct clk *ac97conf_clk;
+static int reset_gpio;
 
 /*
  * Beware PXA27x bugs:
@@ -42,6 +43,45 @@ static struct clk *ac97conf_clk;
  * 1 jiffy timeout if interrupt never comes).
  */
 
+enum {
+	RESETGPIO_FORCE_HIGH,
+	RESETGPIO_FORCE_LOW,
+	RESETGPIO_NORMAL_ALTFUNC
+};
+
+/**
+ * set_resetgpio_mode - computes and sets the AC97_RESET gpio mode on PXA
+ * @mode: chosen action
+ *
+ * As the PXA27x CPUs suffer from a AC97 bug, a manual control of the reset line
+ * must be done to insure proper work of AC97 reset line.  This function
+ * computes the correct gpio_mode for further use by reset functions, and
+ * applied the change through pxa_gpio_mode.
+ */
+static void set_resetgpio_mode(int resetgpio_action)
+{
+	int mode = 0;
+
+	if (reset_gpio)
+		switch (resetgpio_action) {
+		case RESETGPIO_NORMAL_ALTFUNC:
+			if (reset_gpio == 113)
+				mode = 113 | GPIO_OUT | GPIO_DFLT_LOW;
+			if (reset_gpio == 95)
+				mode = 95 | GPIO_ALT_FN_1_OUT;
+			break;
+		case RESETGPIO_FORCE_LOW:
+			mode = reset_gpio | GPIO_OUT | GPIO_DFLT_LOW;
+			break;
+		case RESETGPIO_FORCE_HIGH:
+			mode = reset_gpio | GPIO_OUT | GPIO_DFLT_HIGH;
+			break;
+		};
+
+	if (mode)
+		pxa_gpio_mode(mode);
+}
+
 unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
 {
 	unsigned short val = -1;
@@ -137,10 +177,10 @@ static inline void pxa_ac97_warm_pxa27x(void)
 
 	/* warm reset broken on Bulverde,
 	   so manually keep AC97 reset high */
-	pxa_gpio_mode(113 | GPIO_OUT | GPIO_DFLT_HIGH);
+	set_resetgpio_mode(RESETGPIO_FORCE_HIGH);
 	udelay(10);
 	GCR |= GCR_WARM_RST;
-	pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT);
+	set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC);
 	udelay(500);
 }
 
@@ -308,8 +348,8 @@ int pxa2xx_ac97_hw_resume(void)
 		pxa_gpio_mode(GPIO29_SDATA_IN_AC97_MD);
 	}
 	if (cpu_is_pxa27x()) {
-		/* Use GPIO 113 as AC97 Reset on Bulverde */
-		pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT);
+		/* Use GPIO 113 or 95 as AC97 Reset on Bulverde */
+		set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC);
 	}
 	clk_enable(ac97_clk);
 	return 0;
@@ -320,6 +360,27 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_resume);
 int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev)
 {
 	int ret;
+	struct pxa2xx_ac97_platform_data *pdata = dev->dev.platform_data;
+
+	if (pdata) {
+		switch (pdata->reset_gpio) {
+		case 95:
+		case 113:
+			reset_gpio = pdata->reset_gpio;
+			break;
+		case 0:
+			reset_gpio = 113;
+			break;
+		case -1:
+			break;
+		default:
+			dev_err(dev, "Invalid reset GPIO %d\n",
+				pdata->reset_gpio);
+		}
+	} else {
+		if (cpu_is_pxa27x())
+			reset_gpio = 113;
+	}
 
 	if (cpu_is_pxa25x() || cpu_is_pxa27x()) {
 		pxa_gpio_mode(GPIO31_SYNC_AC97_MD);
@@ -330,7 +391,7 @@ int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev)
 
 	if (cpu_is_pxa27x()) {
 		/* Use GPIO 113 as AC97 Reset on Bulverde */
-		pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT);
+		set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC);
 		ac97conf_clk = clk_get(&dev->dev, "AC97CONFCLK");
 		if (IS_ERR(ac97conf_clk)) {
 			ret = PTR_ERR(ac97conf_clk);
-- 
cgit v1.2.3


From 8bdd663aba341c15cd2fa9dbd7061b8b387964dc Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Sun, 15 Mar 2009 19:59:13 -0700
Subject: net: reorder fields of struct socket

On x86_64, its rather unfortunate that "wait_queue_head_t wait"
field of "struct socket" spans two cache lines (assuming a 64
bytes cache line in current cpus)

offsetof(struct socket, wait)=0x30
sizeof(wait_queue_head_t)=0x18

This might explain why Kenny Chang noticed that his multicast workload
was performing bad with 64 bit kernels, since more cache lines ping pongs
were involved.

This litle patch moves "wait" field next "fasync_list" so that both
fields share a single cache line, to speedup sock_def_readable()

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/net.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/net.h b/include/linux/net.h
index 4515efae4c39..4fc2ffd527f9 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -129,11 +129,15 @@ struct socket {
 	socket_state		state;
 	short			type;
 	unsigned long		flags;
-	const struct proto_ops	*ops;
+	/*
+	 * Please keep fasync_list & wait fields in the same cache line
+	 */
 	struct fasync_struct	*fasync_list;
+	wait_queue_head_t	wait;
+
 	struct file		*file;
 	struct sock		*sk;
-	wait_queue_head_t	wait;
+	const struct proto_ops	*ops;
 };
 
 struct vm_area_struct;
-- 
cgit v1.2.3


From c887e6d2d9aee56ee7c9f2af4cec3a5efdcc4c72 Mon Sep 17 00:00:00 2001
From: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Date: Sat, 14 Mar 2009 14:23:03 +0000
Subject: tcp: consolidate paws check
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Wow, it was quite tricky to merge that stream of negations
but I think I finally got it right:

check & replace_ts_recent:
(s32)(rcv_tsval - ts_recent) >= 0                  => 0
(s32)(ts_recent - rcv_tsval) <= 0                  => 0

discard:
(s32)(ts_recent - rcv_tsval)  > TCP_PAWS_WINDOW    => 1
(s32)(ts_recent - rcv_tsval) <= TCP_PAWS_WINDOW    => 0

I toggled the return values of tcp_paws_check around since
the old encoding added yet-another negation making tracking
of truth-values really complicated.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h        | 18 ++++++++++++++----
 net/ipv4/tcp_input.c     | 11 +++++------
 net/ipv4/tcp_minisocks.c |  4 ++--
 3 files changed, 21 insertions(+), 12 deletions(-)

(limited to 'include')

diff --git a/include/net/tcp.h b/include/net/tcp.h
index d74ac301e6bc..255ca35bea05 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -997,11 +997,21 @@ static inline int tcp_fin_time(const struct sock *sk)
 	return fin_timeout;
 }
 
-static inline int tcp_paws_check(const struct tcp_options_received *rx_opt, int rst)
+static inline int tcp_paws_check(const struct tcp_options_received *rx_opt,
+				 int paws_win)
 {
-	if ((s32)(rx_opt->rcv_tsval - rx_opt->ts_recent) >= 0)
-		return 0;
-	if (get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS)
+	if ((s32)(rx_opt->ts_recent - rx_opt->rcv_tsval) <= paws_win)
+		return 1;
+	if (unlikely(get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS))
+		return 1;
+
+	return 0;
+}
+
+static inline int tcp_paws_reject(const struct tcp_options_received *rx_opt,
+				  int rst)
+{
+	if (tcp_paws_check(rx_opt, 0))
 		return 0;
 
 	/* RST segments are not recommended to carry timestamp,
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index f527a16a7b33..b7d02c5dd6da 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3883,8 +3883,7 @@ static inline void tcp_replace_ts_recent(struct tcp_sock *tp, u32 seq)
 		 * Not only, also it occurs for expired timestamps.
 		 */
 
-		if ((s32)(tp->rx_opt.rcv_tsval - tp->rx_opt.ts_recent) >= 0 ||
-		   get_seconds() >= tp->rx_opt.ts_recent_stamp + TCP_PAWS_24DAYS)
+		if (tcp_paws_check(&tp->rx_opt, 0))
 			tcp_store_ts_recent(tp);
 	}
 }
@@ -3936,9 +3935,9 @@ static inline int tcp_paws_discard(const struct sock *sk,
 				   const struct sk_buff *skb)
 {
 	const struct tcp_sock *tp = tcp_sk(sk);
-	return ((s32)(tp->rx_opt.ts_recent - tp->rx_opt.rcv_tsval) > TCP_PAWS_WINDOW &&
-		get_seconds() < tp->rx_opt.ts_recent_stamp + TCP_PAWS_24DAYS &&
-		!tcp_disordered_ack(sk, skb));
+
+	return !tcp_paws_check(&tp->rx_opt, TCP_PAWS_WINDOW) &&
+	       !tcp_disordered_ack(sk, skb);
 }
 
 /* Check segment sequence number for validity.
@@ -5513,7 +5512,7 @@ discard:
 
 	/* PAWS check. */
 	if (tp->rx_opt.ts_recent_stamp && tp->rx_opt.saw_tstamp &&
-	    tcp_paws_check(&tp->rx_opt, 0))
+	    tcp_paws_reject(&tp->rx_opt, 0))
 		goto discard_and_undo;
 
 	if (th->syn) {
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 4b0df3e6b609..43bbba7926ee 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -107,7 +107,7 @@ tcp_timewait_state_process(struct inet_timewait_sock *tw, struct sk_buff *skb,
 		if (tmp_opt.saw_tstamp) {
 			tmp_opt.ts_recent	= tcptw->tw_ts_recent;
 			tmp_opt.ts_recent_stamp	= tcptw->tw_ts_recent_stamp;
-			paws_reject = tcp_paws_check(&tmp_opt, th->rst);
+			paws_reject = tcp_paws_reject(&tmp_opt, th->rst);
 		}
 	}
 
@@ -511,7 +511,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
 			 * from another data.
 			 */
 			tmp_opt.ts_recent_stamp = get_seconds() - ((TCP_TIMEOUT_INIT/HZ)<<req->retrans);
-			paws_reject = tcp_paws_check(&tmp_opt, th->rst);
+			paws_reject = tcp_paws_reject(&tmp_opt, th->rst);
 		}
 	}
 
-- 
cgit v1.2.3


From 0c54b85f2828128274f319a1eb3ce7f604fe2a53 Mon Sep 17 00:00:00 2001
From: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Date: Sat, 14 Mar 2009 14:23:05 +0000
Subject: tcp: simplify tcp_current_mss
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There's very little need for most of the callsites to get
tp->xmit_goal_size updated. That will cost us divide as is,
so slice the function in two. Also, the only users of the
tp->xmit_goal_size are directly behind tcp_current_mss(),
so there's no need to store that variable into tcp_sock
at all! The drop of xmit_goal_size currently leaves 16-bit
hole and some reorganization would again be necessary to
change that (but I'm aiming to fill that hole with u16
xmit_goal_size_segs to cache the results of the remaining
divide to get that tso on regression).

Bring xmit_goal_size parts into tcp.c

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/tcp.h   |  1 -
 include/net/tcp.h     | 13 +++++++++++--
 net/ipv4/tcp.c        | 43 +++++++++++++++++++++++++++++++++++--------
 net/ipv4/tcp_input.c  |  2 +-
 net/ipv4/tcp_output.c | 41 +++++++----------------------------------
 5 files changed, 54 insertions(+), 46 deletions(-)

(limited to 'include')

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 4b86ad71e054..ad2021ccc55a 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -248,7 +248,6 @@ struct tcp_sock {
 	/* inet_connection_sock has to be the first member of tcp_sock */
 	struct inet_connection_sock	inet_conn;
 	u16	tcp_header_len;	/* Bytes of tcp header to send		*/
-	u16	xmit_size_goal;	/* Goal for segmenting output packets	*/
 
 /*
  *	Header prediction flags
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 255ca35bea05..e54c76d75495 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -481,7 +481,16 @@ static inline void tcp_clear_xmit_timers(struct sock *sk)
 }
 
 extern unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu);
-extern unsigned int tcp_current_mss(struct sock *sk, int large);
+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);
+	else
+		return pktsize;
+}
 
 /* tcp.c */
 extern void tcp_get_info(struct sock *, struct tcp_info *);
@@ -822,7 +831,7 @@ static inline void tcp_push_pending_frames(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
-	__tcp_push_pending_frames(sk, tcp_current_mss(sk, 1), tp->nonagle);
+	__tcp_push_pending_frames(sk, tcp_current_mss(sk), tp->nonagle);
 }
 
 static inline void tcp_init_wl(struct tcp_sock *tp, u32 seq)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index d3f9beee74c0..886596ff0aae 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -661,6 +661,37 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp)
 	return NULL;
 }
 
+static unsigned int tcp_xmit_size_goal(struct sock *sk, u32 mss_now,
+				       int large_allowed)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	u32 xmit_size_goal;
+
+	xmit_size_goal = mss_now;
+
+	if (large_allowed && sk_can_gso(sk)) {
+		xmit_size_goal = ((sk->sk_gso_max_size - 1) -
+				  inet_csk(sk)->icsk_af_ops->net_header_len -
+				  inet_csk(sk)->icsk_ext_hdr_len -
+				  tp->tcp_header_len);
+
+		xmit_size_goal = tcp_bound_to_half_wnd(tp, xmit_size_goal);
+		xmit_size_goal -= (xmit_size_goal % mss_now);
+	}
+
+	return xmit_size_goal;
+}
+
+static int tcp_send_mss(struct sock *sk, int *size_goal, int flags)
+{
+	int mss_now;
+
+	mss_now = tcp_current_mss(sk);
+	*size_goal = tcp_xmit_size_goal(sk, mss_now, !(flags & MSG_OOB));
+
+	return mss_now;
+}
+
 static ssize_t do_tcp_sendpages(struct sock *sk, struct page **pages, int poffset,
 			 size_t psize, int flags)
 {
@@ -677,8 +708,7 @@ static ssize_t do_tcp_sendpages(struct sock *sk, struct page **pages, int poffse
 
 	clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
 
-	mss_now = tcp_current_mss(sk, !(flags&MSG_OOB));
-	size_goal = tp->xmit_size_goal;
+	mss_now = tcp_send_mss(sk, &size_goal, flags);
 	copied = 0;
 
 	err = -EPIPE;
@@ -761,8 +791,7 @@ wait_for_memory:
 		if ((err = sk_stream_wait_memory(sk, &timeo)) != 0)
 			goto do_error;
 
-		mss_now = tcp_current_mss(sk, !(flags&MSG_OOB));
-		size_goal = tp->xmit_size_goal;
+		mss_now = tcp_send_mss(sk, &size_goal, flags);
 	}
 
 out:
@@ -844,8 +873,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
 	/* This should be in poll */
 	clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
 
-	mss_now = tcp_current_mss(sk, !(flags&MSG_OOB));
-	size_goal = tp->xmit_size_goal;
+	mss_now = tcp_send_mss(sk, &size_goal, flags);
 
 	/* Ok commence sending. */
 	iovlen = msg->msg_iovlen;
@@ -1007,8 +1035,7 @@ wait_for_memory:
 			if ((err = sk_stream_wait_memory(sk, &timeo)) != 0)
 				goto do_error;
 
-			mss_now = tcp_current_mss(sk, !(flags&MSG_OOB));
-			size_goal = tp->xmit_size_goal;
+			mss_now = tcp_send_mss(sk, &size_goal, flags);
 		}
 	}
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 311c30f73ee4..fae78e3eccc4 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2864,7 +2864,7 @@ void tcp_simple_retransmit(struct sock *sk)
 	const struct inet_connection_sock *icsk = inet_csk(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct sk_buff *skb;
-	unsigned int mss = tcp_current_mss(sk, 0);
+	unsigned int mss = tcp_current_mss(sk);
 	u32 prior_lost = tp->lost_out;
 
 	tcp_for_write_queue(skb, sk) {
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 325658039139..c1f259d2d33b 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -921,7 +921,7 @@ int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len)
 	 * factor and mss.
 	 */
 	if (tcp_skb_pcount(skb) > 1)
-		tcp_set_skb_tso_segs(sk, skb, tcp_current_mss(sk, 1));
+		tcp_set_skb_tso_segs(sk, skb, tcp_current_mss(sk));
 
 	return 0;
 }
@@ -982,15 +982,6 @@ void tcp_mtup_init(struct sock *sk)
 	icsk->icsk_mtup.probe_size = 0;
 }
 
-/* Bound MSS / TSO packet size with the half of the window */
-static 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);
-	else
-		return pktsize;
-}
-
 /* This function synchronize snd mss to current pmtu/exthdr set.
 
    tp->rx_opt.user_mss is mss set by user by TCP_MAXSEG. It does NOT counts
@@ -1037,22 +1028,17 @@ unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu)
 /* Compute the current effective MSS, taking SACKs and IP options,
  * and even PMTU discovery events into account.
  */
-unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
+unsigned int tcp_current_mss(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct dst_entry *dst = __sk_dst_get(sk);
 	u32 mss_now;
-	u16 xmit_size_goal;
-	int doing_tso = 0;
 	unsigned header_len;
 	struct tcp_out_options opts;
 	struct tcp_md5sig_key *md5;
 
 	mss_now = tp->mss_cache;
 
-	if (large_allowed && sk_can_gso(sk))
-		doing_tso = 1;
-
 	if (dst) {
 		u32 mtu = dst_mtu(dst);
 		if (mtu != inet_csk(sk)->icsk_pmtu_cookie)
@@ -1070,19 +1056,6 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
 		mss_now -= delta;
 	}
 
-	xmit_size_goal = mss_now;
-
-	if (doing_tso) {
-		xmit_size_goal = ((sk->sk_gso_max_size - 1) -
-				  inet_csk(sk)->icsk_af_ops->net_header_len -
-				  inet_csk(sk)->icsk_ext_hdr_len -
-				  tp->tcp_header_len);
-
-		xmit_size_goal = tcp_bound_to_half_wnd(tp, xmit_size_goal);
-		xmit_size_goal -= (xmit_size_goal % mss_now);
-	}
-	tp->xmit_size_goal = xmit_size_goal;
-
 	return mss_now;
 }
 
@@ -1264,7 +1237,7 @@ int tcp_may_send_now(struct sock *sk)
 	struct sk_buff *skb = tcp_send_head(sk);
 
 	return (skb &&
-		tcp_snd_test(sk, skb, tcp_current_mss(sk, 1),
+		tcp_snd_test(sk, skb, tcp_current_mss(sk),
 			     (tcp_skb_is_last(sk, skb) ?
 			      tp->nonagle : TCP_NAGLE_PUSH)));
 }
@@ -1421,7 +1394,7 @@ static int tcp_mtu_probe(struct sock *sk)
 		return -1;
 
 	/* Very simple search strategy: just double the MSS. */
-	mss_now = tcp_current_mss(sk, 0);
+	mss_now = tcp_current_mss(sk);
 	probe_size = 2 * tp->mss_cache;
 	size_needed = probe_size + (tp->reordering + 1) * tp->mss_cache;
 	if (probe_size > tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_high)) {
@@ -1903,7 +1876,7 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
 	if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
 		return -EHOSTUNREACH; /* Routing failure or similar. */
 
-	cur_mss = tcp_current_mss(sk, 0);
+	cur_mss = tcp_current_mss(sk);
 
 	/* If receiver has shrunk his window, and skb is out of
 	 * new window, do not retransmit it. The exception is the
@@ -2111,7 +2084,7 @@ void tcp_send_fin(struct sock *sk)
 	 * unsent frames.  But be careful about outgoing SACKS
 	 * and IP options.
 	 */
-	mss_now = tcp_current_mss(sk, 1);
+	mss_now = tcp_current_mss(sk);
 
 	if (tcp_send_head(sk) != NULL) {
 		TCP_SKB_CB(skb)->flags |= TCPCB_FLAG_FIN;
@@ -2523,7 +2496,7 @@ int tcp_write_wakeup(struct sock *sk)
 	if ((skb = tcp_send_head(sk)) != NULL &&
 	    before(TCP_SKB_CB(skb)->seq, tcp_wnd_end(tp))) {
 		int err;
-		unsigned int mss = tcp_current_mss(sk, 0);
+		unsigned int mss = tcp_current_mss(sk);
 		unsigned int seg_size = tcp_wnd_end(tp) - TCP_SKB_CB(skb)->seq;
 
 		if (before(tp->pushed_seq, TCP_SKB_CB(skb)->end_seq))
-- 
cgit v1.2.3


From 2a3a041c4e2c1685e668b280c121a5a40a029a03 Mon Sep 17 00:00:00 2001
From: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Date: Sat, 14 Mar 2009 22:45:16 +0000
Subject: tcp: cache result of earlier divides when mss-aligning things
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The results is very unlikely change every so often so we
hardly need to divide again after doing that once for a
connection. Yet, if divide still becomes necessary we
detect that and do the right thing and again settle for
non-divide state. Takes the u16 space which was previously
taken by the plain xmit_size_goal.

This should take care part of the tso vs non-tso difference
we found earlier.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/tcp.h |  1 +
 net/ipv4/tcp.c      | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index ad2021ccc55a..9d5078bd23a3 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -248,6 +248,7 @@ struct tcp_sock {
 	/* inet_connection_sock has to be the first member of tcp_sock */
 	struct inet_connection_sock	inet_conn;
 	u16	tcp_header_len;	/* Bytes of tcp header to send		*/
+	u16	xmit_size_goal_segs; /* Goal for segmenting output packets */
 
 /*
  *	Header prediction flags
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 886596ff0aae..0db9f3b984f7 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -665,7 +665,7 @@ static unsigned int tcp_xmit_size_goal(struct sock *sk, u32 mss_now,
 				       int large_allowed)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
-	u32 xmit_size_goal;
+	u32 xmit_size_goal, old_size_goal;
 
 	xmit_size_goal = mss_now;
 
@@ -676,7 +676,17 @@ static unsigned int tcp_xmit_size_goal(struct sock *sk, u32 mss_now,
 				  tp->tcp_header_len);
 
 		xmit_size_goal = tcp_bound_to_half_wnd(tp, xmit_size_goal);
-		xmit_size_goal -= (xmit_size_goal % mss_now);
+
+		/* We try hard to avoid divides here */
+		old_size_goal = tp->xmit_size_goal_segs * mss_now;
+
+		if (likely(old_size_goal <= xmit_size_goal &&
+			   old_size_goal + mss_now > xmit_size_goal)) {
+			xmit_size_goal = old_size_goal;
+		} else {
+			tp->xmit_size_goal_segs = xmit_size_goal / mss_now;
+			xmit_size_goal = tp->xmit_size_goal_segs * mss_now;
+		}
 	}
 
 	return xmit_size_goal;
-- 
cgit v1.2.3


From ca735b3aaa945626ba65a3e51145bfe4ecd9e222 Mon Sep 17 00:00:00 2001
From: Eric Leblond <eric@inl.fr>
Date: Mon, 16 Mar 2009 14:54:21 +0100
Subject: netfilter: use a linked list of loggers

This patch modifies nf_log to use a linked list of loggers for each
protocol. This list of loggers is read and write protected with a
mutex.

This patch separates registration and binding. To be used as
logging module, a module has to register calling nf_log_register()
and to bind to a protocol it has to call nf_log_bind_pf().
This patch also converts the logging modules to the new API. For nfnetlink_log,
it simply switchs call to register functions to call to bind function and
adds a call to nf_log_register() during init. For other modules, it just
remove a const flag from the logger structure and replace it with a
__read_mostly.

Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_log.h | 11 ++++--
 net/ipv4/netfilter/ipt_LOG.c   |  2 +-
 net/ipv4/netfilter/ipt_ULOG.c  |  2 +-
 net/ipv6/netfilter/ip6t_LOG.c  |  2 +-
 net/netfilter/nf_log.c         | 90 ++++++++++++++++++++++++++++--------------
 net/netfilter/nfnetlink_log.c  | 18 ++++++---
 6 files changed, 84 insertions(+), 41 deletions(-)

(limited to 'include')

diff --git a/include/net/netfilter/nf_log.h b/include/net/netfilter/nf_log.h
index 7182c06974f4..920997f1aff0 100644
--- a/include/net/netfilter/nf_log.h
+++ b/include/net/netfilter/nf_log.h
@@ -1,6 +1,8 @@
 #ifndef _NF_LOG_H
 #define _NF_LOG_H
 
+#include <linux/netfilter.h>
+
 /* those NF_LOG_* defines and struct nf_loginfo are legacy definitios that will
  * disappear once iptables is replaced with pkttables.  Please DO NOT use them
  * for any new code! */
@@ -40,12 +42,15 @@ struct nf_logger {
 	struct module	*me;
 	nf_logfn 	*logfn;
 	char		*name;
+	struct list_head	list[NFPROTO_NUMPROTO];
 };
 
 /* Function to register/unregister log function. */
-int nf_log_register(u_int8_t pf, const struct nf_logger *logger);
-void nf_log_unregister(const struct nf_logger *logger);
-void nf_log_unregister_pf(u_int8_t pf);
+int nf_log_register(u_int8_t pf, struct nf_logger *logger);
+void nf_log_unregister(struct nf_logger *logger);
+
+int nf_log_bind_pf(u_int8_t pf, const struct nf_logger *logger);
+void nf_log_unbind_pf(u_int8_t pf);
 
 /* Calls the registered backend logging function */
 void nf_log_packet(u_int8_t pf,
diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c
index 27a78fbbd92b..acc44c69eb68 100644
--- a/net/ipv4/netfilter/ipt_LOG.c
+++ b/net/ipv4/netfilter/ipt_LOG.c
@@ -464,7 +464,7 @@ static struct xt_target log_tg_reg __read_mostly = {
 	.me		= THIS_MODULE,
 };
 
-static const struct nf_logger ipt_log_logger ={
+static struct nf_logger ipt_log_logger __read_mostly = {
 	.name		= "ipt_LOG",
 	.logfn		= &ipt_log_packet,
 	.me		= THIS_MODULE,
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index 18a2826b57c6..d32cc4bb328a 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -379,7 +379,7 @@ static struct xt_target ulog_tg_reg __read_mostly = {
 	.me		= THIS_MODULE,
 };
 
-static struct nf_logger ipt_ulog_logger = {
+static struct nf_logger ipt_ulog_logger __read_mostly = {
 	.name		= "ipt_ULOG",
 	.logfn		= ipt_logfn,
 	.me		= THIS_MODULE,
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index 37adf5abc51e..7018cac4fddc 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -477,7 +477,7 @@ static struct xt_target log_tg6_reg __read_mostly = {
 	.me 		= THIS_MODULE,
 };
 
-static const struct nf_logger ip6t_logger = {
+static struct nf_logger ip6t_logger __read_mostly = {
 	.name		= "ip6t_LOG",
 	.logfn		= &ip6t_log_packet,
 	.me		= THIS_MODULE,
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index fa8ae5d2659c..a228b5fbcf7c 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -16,56 +16,60 @@
 #define NF_LOG_PREFIXLEN		128
 
 static const struct nf_logger *nf_loggers[NFPROTO_NUMPROTO] __read_mostly;
+static struct list_head nf_loggers_l[NFPROTO_NUMPROTO] __read_mostly;
 static DEFINE_MUTEX(nf_log_mutex);
 
-/* return EBUSY if somebody else is registered, EEXIST if the same logger
- * is registred, 0 on success. */
-int nf_log_register(u_int8_t pf, const struct nf_logger *logger)
+static struct nf_logger *__find_logger(int pf, const char *str_logger)
 {
-	int ret;
+	struct nf_logger *t;
 
-	if (pf >= ARRAY_SIZE(nf_loggers))
-		return -EINVAL;
-
-	/* Any setup of logging members must be done before
-	 * substituting pointer. */
-	ret = mutex_lock_interruptible(&nf_log_mutex);
-	if (ret < 0)
-		return ret;
-
-	if (!nf_loggers[pf])
-		rcu_assign_pointer(nf_loggers[pf], logger);
-	else if (nf_loggers[pf] == logger)
-		ret = -EEXIST;
-	else
-		ret = -EBUSY;
+	list_for_each_entry(t, &nf_loggers_l[pf], list[pf]) {
+		if (!strnicmp(str_logger, t->name, strlen(t->name)))
+			return t;
+	}
 
-	mutex_unlock(&nf_log_mutex);
-	return ret;
+	return NULL;
 }
-EXPORT_SYMBOL(nf_log_register);
 
-void nf_log_unregister_pf(u_int8_t pf)
+/* return EEXIST if the same logger is registred, 0 on success. */
+int nf_log_register(u_int8_t pf, struct nf_logger *logger)
 {
+	const struct nf_logger *llog;
+
 	if (pf >= ARRAY_SIZE(nf_loggers))
-		return;
+		return -EINVAL;
+
 	mutex_lock(&nf_log_mutex);
-	rcu_assign_pointer(nf_loggers[pf], NULL);
+
+	if (pf == NFPROTO_UNSPEC) {
+		int i;
+		for (i = NFPROTO_UNSPEC; i < NFPROTO_NUMPROTO; i++)
+			list_add_tail(&(logger->list[i]), &(nf_loggers_l[i]));
+	} else {
+		/* register at end of list to honor first register win */
+		list_add_tail(&logger->list[pf], &nf_loggers_l[pf]);
+		llog = rcu_dereference(nf_loggers[pf]);
+		if (llog == NULL)
+			rcu_assign_pointer(nf_loggers[pf], logger);
+	}
+
 	mutex_unlock(&nf_log_mutex);
 
-	/* Give time to concurrent readers. */
-	synchronize_rcu();
+	return 0;
 }
-EXPORT_SYMBOL(nf_log_unregister_pf);
+EXPORT_SYMBOL(nf_log_register);
 
-void nf_log_unregister(const struct nf_logger *logger)
+void nf_log_unregister(struct nf_logger *logger)
 {
+	const struct nf_logger *c_logger;
 	int i;
 
 	mutex_lock(&nf_log_mutex);
 	for (i = 0; i < ARRAY_SIZE(nf_loggers); i++) {
-		if (nf_loggers[i] == logger)
+		c_logger = rcu_dereference(nf_loggers[i]);
+		if (c_logger == logger)
 			rcu_assign_pointer(nf_loggers[i], NULL);
+		list_del(&logger->list[i]);
 	}
 	mutex_unlock(&nf_log_mutex);
 
@@ -73,6 +77,27 @@ void nf_log_unregister(const struct nf_logger *logger)
 }
 EXPORT_SYMBOL(nf_log_unregister);
 
+int nf_log_bind_pf(u_int8_t pf, const struct nf_logger *logger)
+{
+	mutex_lock(&nf_log_mutex);
+	if (__find_logger(pf, logger->name) == NULL) {
+		mutex_unlock(&nf_log_mutex);
+		return -ENOENT;
+	}
+	rcu_assign_pointer(nf_loggers[pf], logger);
+	mutex_unlock(&nf_log_mutex);
+	return 0;
+}
+EXPORT_SYMBOL(nf_log_bind_pf);
+
+void nf_log_unbind_pf(u_int8_t pf)
+{
+	mutex_lock(&nf_log_mutex);
+	rcu_assign_pointer(nf_loggers[pf], NULL);
+	mutex_unlock(&nf_log_mutex);
+}
+EXPORT_SYMBOL(nf_log_unbind_pf);
+
 void nf_log_packet(u_int8_t pf,
 		   unsigned int hooknum,
 		   const struct sk_buff *skb,
@@ -163,10 +188,15 @@ static const struct file_operations nflog_file_ops = {
 
 int __init netfilter_log_init(void)
 {
+	int i;
 #ifdef CONFIG_PROC_FS
 	if (!proc_create("nf_log", S_IRUGO,
 			 proc_net_netfilter, &nflog_file_ops))
 		return -1;
 #endif
+
+	for (i = NFPROTO_UNSPEC; i < NFPROTO_NUMPROTO; i++)
+		INIT_LIST_HEAD(&(nf_loggers_l[i]));
+
 	return 0;
 }
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index fa49dc7fe100..3eae3fca29d8 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -691,7 +691,7 @@ nfulnl_recv_unsupp(struct sock *ctnl, struct sk_buff *skb,
 	return -ENOTSUPP;
 }
 
-static const struct nf_logger nfulnl_logger = {
+static struct nf_logger nfulnl_logger __read_mostly = {
 	.name	= "nfnetlink_log",
 	.logfn	= &nfulnl_log_packet,
 	.me	= THIS_MODULE,
@@ -723,9 +723,9 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
 		/* Commands without queue context */
 		switch (cmd->command) {
 		case NFULNL_CFG_CMD_PF_BIND:
-			return nf_log_register(pf, &nfulnl_logger);
+			return nf_log_bind_pf(pf, &nfulnl_logger);
 		case NFULNL_CFG_CMD_PF_UNBIND:
-			nf_log_unregister_pf(pf);
+			nf_log_unbind_pf(pf);
 			return 0;
 		}
 	}
@@ -950,17 +950,25 @@ static int __init nfnetlink_log_init(void)
 		goto cleanup_netlink_notifier;
 	}
 
+	status = nf_log_register(NFPROTO_UNSPEC, &nfulnl_logger);
+	if (status < 0) {
+		printk(KERN_ERR "log: failed to register logger\n");
+		goto cleanup_subsys;
+	}
+
 #ifdef CONFIG_PROC_FS
 	if (!proc_create("nfnetlink_log", 0440,
 			 proc_net_netfilter, &nful_file_ops))
-		goto cleanup_subsys;
+		goto cleanup_logger;
 #endif
 	return status;
 
 #ifdef CONFIG_PROC_FS
+cleanup_logger:
+	nf_log_unregister(&nfulnl_logger);
+#endif
 cleanup_subsys:
 	nfnetlink_subsys_unregister(&nfulnl_subsys);
-#endif
 cleanup_netlink_notifier:
 	netlink_unregister_notifier(&nfulnl_rtnl_notifier);
 	return status;
-- 
cgit v1.2.3


From b1e93a68ca41e7e73766f95ba32ca05cf9052e15 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 16 Mar 2009 15:06:42 +0100
Subject: netfilter: conntrack: don't deliver events for racy packets

This patch skips the delivery of conntrack events if the packet
was drop due to a race condition in the conntrack insertion.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_conntrack_core.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index c25068e38516..5a449b44ba33 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -62,7 +62,8 @@ static inline int nf_conntrack_confirm(struct sk_buff *skb)
 	if (ct && ct != &nf_conntrack_untracked) {
 		if (!nf_ct_is_confirmed(ct) && !nf_ct_is_dying(ct))
 			ret = __nf_conntrack_confirm(skb);
-		nf_ct_deliver_cached_events(ct);
+		if (likely(ret == NF_ACCEPT))
+			nf_ct_deliver_cached_events(ct);
 	}
 	return ret;
 }
-- 
cgit v1.2.3


From 9d2493f88f846b391a15a736efc7f4b97d6c4046 Mon Sep 17 00:00:00 2001
From: Christoph Paasch <christoph.paasch@gmail.com>
Date: Mon, 16 Mar 2009 15:15:35 +0100
Subject: netfilter: remove IPvX specific parts from nf_conntrack_l4proto.h

Moving the structure definitions to the corresponding IPvX specific header files.

Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_conntrack_l4proto.h   | 5 +----
 net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 1 +
 net/netfilter/nf_conntrack_proto_tcp.c         | 2 ++
 net/netfilter/nf_conntrack_proto_udp.c         | 2 ++
 4 files changed, 6 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index debdaf75cecf..16ab604659e7 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -90,10 +90,7 @@ struct nf_conntrack_l4proto
 	struct module *me;
 };
 
-/* Existing built-in protocols */
-extern struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6;
-extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4;
-extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6;
+/* Existing built-in generic protocol */
 extern struct nf_conntrack_l4proto nf_conntrack_l4proto_generic;
 
 #define MAX_NF_CT_PROTO 256
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 727b9530448a..e6852f617217 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -26,6 +26,7 @@
 #include <net/netfilter/nf_conntrack_l4proto.h>
 #include <net/netfilter/nf_conntrack_l3proto.h>
 #include <net/netfilter/nf_conntrack_core.h>
+#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
 
 static bool ipv6_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
 			      struct nf_conntrack_tuple *tuple)
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index a1edb9c1adee..7d3944f02ea1 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -25,6 +25,8 @@
 #include <net/netfilter/nf_conntrack_l4proto.h>
 #include <net/netfilter/nf_conntrack_ecache.h>
 #include <net/netfilter/nf_log.h>
+#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
+#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
 
 /* Protects ct->proto.tcp */
 static DEFINE_RWLOCK(tcp_lock);
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index 2b8b1f579f93..d4021179e24e 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -22,6 +22,8 @@
 #include <net/netfilter/nf_conntrack_l4proto.h>
 #include <net/netfilter/nf_conntrack_ecache.h>
 #include <net/netfilter/nf_log.h>
+#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
+#include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
 
 static unsigned int nf_ct_udp_timeout __read_mostly = 30*HZ;
 static unsigned int nf_ct_udp_timeout_stream __read_mostly = 180*HZ;
-- 
cgit v1.2.3


From 684999149002dd046269666a390458e0acb38280 Mon Sep 17 00:00:00 2001
From: Jonathan Corbet <corbet@lwn.net>
Date: Fri, 6 Feb 2009 13:52:43 -0700
Subject: Rename struct file->f_ep_lock

This lock moves out of the CONFIG_EPOLL ifdef and becomes f_lock.  For now,
epoll remains the only user, but a future patch will use it to protect
f_flags as well.

Cc: Davide Libenzi <davidel@xmailserver.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---
 fs/eventpoll.c            | 12 +++++++-----
 fs/file_table.c           |  1 +
 include/linux/eventpoll.h |  1 -
 include/linux/fs.h        |  2 +-
 4 files changed, 9 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 011b9b8c90c6..c5c424f23fd5 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -417,10 +417,10 @@ static int ep_remove(struct eventpoll *ep, struct epitem *epi)
 	ep_unregister_pollwait(ep, epi);
 
 	/* Remove the current item from the list of epoll hooks */
-	spin_lock(&file->f_ep_lock);
+	spin_lock(&file->f_lock);
 	if (ep_is_linked(&epi->fllink))
 		list_del_init(&epi->fllink);
-	spin_unlock(&file->f_ep_lock);
+	spin_unlock(&file->f_lock);
 
 	rb_erase(&epi->rbn, &ep->rbr);
 
@@ -538,7 +538,7 @@ void eventpoll_release_file(struct file *file)
 	struct epitem *epi;
 
 	/*
-	 * We don't want to get "file->f_ep_lock" because it is not
+	 * We don't want to get "file->f_lock" because it is not
 	 * necessary. It is not necessary because we're in the "struct file"
 	 * cleanup path, and this means that noone is using this file anymore.
 	 * So, for example, epoll_ctl() cannot hit here sicne if we reach this
@@ -547,6 +547,8 @@ void eventpoll_release_file(struct file *file)
 	 * will correctly serialize the operation. We do need to acquire
 	 * "ep->mtx" after "epmutex" because ep_remove() requires it when called
 	 * from anywhere but ep_free().
+	 *
+	 * Besides, ep_remove() acquires the lock, so we can't hold it here.
 	 */
 	mutex_lock(&epmutex);
 
@@ -785,9 +787,9 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
 		goto error_unregister;
 
 	/* Add the current item to the list of active epoll hook for this file */
-	spin_lock(&tfile->f_ep_lock);
+	spin_lock(&tfile->f_lock);
 	list_add_tail(&epi->fllink, &tfile->f_ep_links);
-	spin_unlock(&tfile->f_ep_lock);
+	spin_unlock(&tfile->f_lock);
 
 	/*
 	 * Add the current item to the RB tree. All RB tree operations are
diff --git a/fs/file_table.c b/fs/file_table.c
index bbeeac6efa1a..aa1e18050282 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -127,6 +127,7 @@ struct file *get_empty_filp(void)
 	atomic_long_set(&f->f_count, 1);
 	rwlock_init(&f->f_owner.lock);
 	f->f_cred = get_cred(cred);
+	spin_lock_init(&f->f_lock);
 	eventpoll_init_file(f);
 	/* f->f_version: 0 */
 	return f;
diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h
index f1e1d3c47125..f6856a5a1d4b 100644
--- a/include/linux/eventpoll.h
+++ b/include/linux/eventpoll.h
@@ -61,7 +61,6 @@ struct file;
 static inline void eventpoll_init_file(struct file *file)
 {
 	INIT_LIST_HEAD(&file->f_ep_links);
-	spin_lock_init(&file->f_ep_lock);
 }
 
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 92734c0012e6..2011600d12c7 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -848,6 +848,7 @@ struct file {
 #define f_dentry	f_path.dentry
 #define f_vfsmnt	f_path.mnt
 	const struct file_operations	*f_op;
+	spinlock_t		f_lock;  /* f_ep_links */
 	atomic_long_t		f_count;
 	unsigned int 		f_flags;
 	fmode_t			f_mode;
@@ -866,7 +867,6 @@ struct file {
 #ifdef CONFIG_EPOLL
 	/* Used by fs/eventpoll.c to link all the hooks to this file */
 	struct list_head	f_ep_links;
-	spinlock_t		f_ep_lock;
 #endif /* #ifdef CONFIG_EPOLL */
 	struct address_space	*f_mapping;
 #ifdef CONFIG_DEBUG_WRITECOUNT
-- 
cgit v1.2.3


From db1dd4d376134eba0e08af523b61cc566a4ea1cd Mon Sep 17 00:00:00 2001
From: Jonathan Corbet <corbet@lwn.net>
Date: Fri, 6 Feb 2009 15:25:24 -0700
Subject: Use f_lock to protect f_flags

Traditionally, changes to struct file->f_flags have been done under BKL
protection, or with no protection at all.  This patch causes all f_flags
changes after file open/creation time to be done under protection of
f_lock.  This allows the removal of some BKL usage and fixes a number of
longstanding (if microscopic) races.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---
 drivers/char/tty_io.c             | 5 ++---
 drivers/usb/gadget/file_storage.c | 7 ++++++-
 fs/fcntl.c                        | 2 ++
 fs/ioctl.c                        | 7 ++++---
 fs/nfsd/vfs.c                     | 5 ++++-
 include/linux/fs.h                | 2 +-
 ipc/mqueue.c                      | 2 ++
 sound/core/oss/pcm_oss.c          | 2 ++
 sound/oss/au1550_ac97.c           | 2 ++
 sound/oss/audio.c                 | 2 ++
 sound/oss/sh_dac_audio.c          | 2 ++
 sound/oss/swarm_cs4297a.c         | 2 ++
 sound/oss/vwsnd.c                 | 2 ++
 13 files changed, 33 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index bc84e125c6bc..224f271d8cbe 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -2162,13 +2162,12 @@ static int fionbio(struct file *file, int __user *p)
 	if (get_user(nonblock, p))
 		return -EFAULT;
 
-	/* file->f_flags is still BKL protected in the fs layer - vomit */
-	lock_kernel();
+	spin_lock(&file->f_lock);
 	if (nonblock)
 		file->f_flags |= O_NONBLOCK;
 	else
 		file->f_flags &= ~O_NONBLOCK;
-	unlock_kernel();
+	spin_unlock(&file->f_lock);
 	return 0;
 }
 
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 1ab9dac7e12d..33bb76cef33c 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -1711,7 +1711,9 @@ static int do_write(struct fsg_dev *fsg)
 		curlun->sense_data = SS_WRITE_PROTECTED;
 		return -EINVAL;
 	}
+	spin_lock(&curlun->filp->f_lock);
 	curlun->filp->f_flags &= ~O_SYNC;	// Default is not to wait
+	spin_unlock(&curlun->filp->f_lock);
 
 	/* Get the starting Logical Block Address and check that it's
 	 * not too big */
@@ -1728,8 +1730,11 @@ static int do_write(struct fsg_dev *fsg)
 			curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
 			return -EINVAL;
 		}
-		if (fsg->cmnd[1] & 0x08)	// FUA
+		if (fsg->cmnd[1] & 0x08) {	// FUA
+			spin_lock(&curlun->filp->f_lock);
 			curlun->filp->f_flags |= O_SYNC;
+			spin_unlock(&curlun->filp->f_lock);
+		}
 	}
 	if (lba >= curlun->num_sectors) {
 		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
diff --git a/fs/fcntl.c b/fs/fcntl.c
index bd215cc791da..04df8570a2d2 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -189,7 +189,9 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
 		}
 	}
 
+	spin_lock(&filp->f_lock);
 	filp->f_flags = (arg & SETFL_MASK) | (filp->f_flags & ~SETFL_MASK);
+	spin_unlock(&filp->f_lock);
  out:
 	unlock_kernel();
 	return error;
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 240ec63984cb..421aab465dab 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -404,10 +404,12 @@ static int ioctl_fionbio(struct file *filp, int __user *argp)
 	if (O_NONBLOCK != O_NDELAY)
 		flag |= O_NDELAY;
 #endif
+	spin_lock(&filp->f_lock);
 	if (on)
 		filp->f_flags |= flag;
 	else
 		filp->f_flags &= ~flag;
+	spin_unlock(&filp->f_lock);
 	return error;
 }
 
@@ -432,10 +434,12 @@ static int ioctl_fioasync(unsigned int fd, struct file *filp,
 	if (error)
 		return error;
 
+	spin_lock(&filp->f_lock);
 	if (on)
 		filp->f_flags |= FASYNC;
 	else
 		filp->f_flags &= ~FASYNC;
+	spin_unlock(&filp->f_lock);
 	return error;
 }
 
@@ -499,10 +503,7 @@ int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
 		break;
 
 	case FIONBIO:
-		/* BKL needed to avoid races tweaking f_flags */
-		lock_kernel();
 		error = ioctl_fionbio(filp, argp);
-		unlock_kernel();
 		break;
 
 	case FIOASYNC:
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 6e50aaa56ca2..c165a6403df0 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -998,8 +998,11 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
 
 	if (!EX_ISSYNC(exp))
 		stable = 0;
-	if (stable && !EX_WGATHER(exp))
+	if (stable && !EX_WGATHER(exp)) {
+		spin_lock(&file->f_lock);
 		file->f_flags |= O_SYNC;
+		spin_unlock(&file->f_lock);
+	}
 
 	/* Write the data. */
 	oldfs = get_fs(); set_fs(KERNEL_DS);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2011600d12c7..7428c6d35e65 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -848,7 +848,7 @@ struct file {
 #define f_dentry	f_path.dentry
 #define f_vfsmnt	f_path.mnt
 	const struct file_operations	*f_op;
-	spinlock_t		f_lock;  /* f_ep_links */
+	spinlock_t		f_lock;  /* f_ep_links, f_flags */
 	atomic_long_t		f_count;
 	unsigned int 		f_flags;
 	fmode_t			f_mode;
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 54b4077fed79..a8ddadbc7459 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -1156,10 +1156,12 @@ SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes,
 	omqstat.mq_flags = filp->f_flags & O_NONBLOCK;
 	if (u_mqstat) {
 		audit_mq_getsetattr(mqdes, &mqstat);
+		spin_lock(&filp->f_lock);
 		if (mqstat.mq_flags & O_NONBLOCK)
 			filp->f_flags |= O_NONBLOCK;
 		else
 			filp->f_flags &= ~O_NONBLOCK;
+		spin_unlock(&filp->f_lock);
 
 		inode->i_atime = inode->i_ctime = CURRENT_TIME;
 	}
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 0a1798eafb0b..d4460f18e76c 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1895,7 +1895,9 @@ static int snd_pcm_oss_set_fragment(struct snd_pcm_oss_file *pcm_oss_file, unsig
 
 static int snd_pcm_oss_nonblock(struct file * file)
 {
+	spin_lock(&file->f_lock);
 	file->f_flags |= O_NONBLOCK;
+	spin_unlock(&file->f_lock);
 	return 0;
 }
 
diff --git a/sound/oss/au1550_ac97.c b/sound/oss/au1550_ac97.c
index 81e1f443d094..4191acccbcdb 100644
--- a/sound/oss/au1550_ac97.c
+++ b/sound/oss/au1550_ac97.c
@@ -1627,7 +1627,9 @@ au1550_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 				    sizeof(abinfo)) ? -EFAULT : 0;
 
 	case SNDCTL_DSP_NONBLOCK:
+		spin_lock(&file->f_lock);
 		file->f_flags |= O_NONBLOCK;
+		spin_unlock(&file->f_lock);
 		return 0;
 
 	case SNDCTL_DSP_GETODELAY:
diff --git a/sound/oss/audio.c b/sound/oss/audio.c
index 89bd27a5e865..b69c05b7ea7b 100644
--- a/sound/oss/audio.c
+++ b/sound/oss/audio.c
@@ -433,7 +433,9 @@ int audio_ioctl(int dev, struct file *file, unsigned int cmd, void __user *arg)
 			return dma_ioctl(dev, cmd, arg);
 		
 		case SNDCTL_DSP_NONBLOCK:
+			spin_lock(&file->f_lock);
 			file->f_flags |= O_NONBLOCK;
+			spin_unlock(&file->f_lock);
 			return 0;
 
 		case SNDCTL_DSP_GETCAPS:
diff --git a/sound/oss/sh_dac_audio.c b/sound/oss/sh_dac_audio.c
index e5d423994918..78cfb66e4c59 100644
--- a/sound/oss/sh_dac_audio.c
+++ b/sound/oss/sh_dac_audio.c
@@ -135,7 +135,9 @@ static int dac_audio_ioctl(struct inode *inode, struct file *file,
 		return put_user(AFMT_U8, (int *)arg);
 
 	case SNDCTL_DSP_NONBLOCK:
+		spin_lock(&file->f_lock);
 		file->f_flags |= O_NONBLOCK;
+		spin_unlock(&file->f_lock);
 		return 0;
 
 	case SNDCTL_DSP_GETCAPS:
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index 41562ecde5bb..1edab7b4ea83 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -2200,7 +2200,9 @@ static int cs4297a_ioctl(struct inode *inode, struct file *file,
 				    sizeof(abinfo)) ? -EFAULT : 0;
 
 	case SNDCTL_DSP_NONBLOCK:
+		spin_lock(&file->f_lock);
 		file->f_flags |= O_NONBLOCK;
+		spin_unlock(&file->f_lock);
 		return 0;
 
 	case SNDCTL_DSP_GETODELAY:
diff --git a/sound/oss/vwsnd.c b/sound/oss/vwsnd.c
index 78b8acc7c3b9..187f72750e8f 100644
--- a/sound/oss/vwsnd.c
+++ b/sound/oss/vwsnd.c
@@ -2673,7 +2673,9 @@ static int vwsnd_audio_do_ioctl(struct inode *inode,
 
 	case SNDCTL_DSP_NONBLOCK:	/* _SIO  ('P',14) */
 		DBGX("SNDCTL_DSP_NONBLOCK\n");
+		spin_lock(&file->f_lock);
 		file->f_flags |= O_NONBLOCK;
+		spin_unlock(&file->f_lock);
 		return 0;
 
 	case SNDCTL_DSP_RESET:		/* _SIO  ('P', 0) */
-- 
cgit v1.2.3


From acc738fec03bdaa5b77340c32a82fbfedaaabef0 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Mon, 16 Mar 2009 15:35:29 +0100
Subject: netfilter: xtables: avoid pointer to self

Commit 784544739a25c30637397ace5489eeb6e15d7d49 (netfilter: iptables:
lock free counters) broke a number of modules whose rule data referenced
itself. A reallocation would not reestablish the correct references, so
it is best to use a separate struct that does not fall under RCU.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/linux/netfilter/xt_limit.h     |  9 ++++----
 include/linux/netfilter/xt_quota.h     |  4 +++-
 include/linux/netfilter/xt_statistic.h |  7 +++---
 net/netfilter/xt_limit.c               | 40 ++++++++++++++++++++++++----------
 net/netfilter/xt_quota.c               | 31 ++++++++++++++++++++------
 net/netfilter/xt_statistic.c           | 28 +++++++++++++++++++-----
 6 files changed, 88 insertions(+), 31 deletions(-)

(limited to 'include')

diff --git a/include/linux/netfilter/xt_limit.h b/include/linux/netfilter/xt_limit.h
index b3ce65375ecb..fda222c7953b 100644
--- a/include/linux/netfilter/xt_limit.h
+++ b/include/linux/netfilter/xt_limit.h
@@ -4,6 +4,8 @@
 /* timings are in milliseconds. */
 #define XT_LIMIT_SCALE 10000
 
+struct xt_limit_priv;
+
 /* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
    seconds, or one every 59 hours. */
 struct xt_rateinfo {
@@ -11,11 +13,10 @@ struct xt_rateinfo {
 	u_int32_t burst;  /* Period multiplier for upper limit. */
 
 	/* Used internally by the kernel */
-	unsigned long prev;
-	u_int32_t credit;
+	unsigned long prev; /* moved to xt_limit_priv */
+	u_int32_t credit; /* moved to xt_limit_priv */
 	u_int32_t credit_cap, cost;
 
-	/* Ugly, ugly fucker. */
-	struct xt_rateinfo *master;
+	struct xt_limit_priv *master;
 };
 #endif /*_XT_RATE_H*/
diff --git a/include/linux/netfilter/xt_quota.h b/include/linux/netfilter/xt_quota.h
index 4c8368d781e5..8dc89dfc1361 100644
--- a/include/linux/netfilter/xt_quota.h
+++ b/include/linux/netfilter/xt_quota.h
@@ -6,13 +6,15 @@ enum xt_quota_flags {
 };
 #define XT_QUOTA_MASK		0x1
 
+struct xt_quota_priv;
+
 struct xt_quota_info {
 	u_int32_t		flags;
 	u_int32_t		pad;
 
 	/* Used internally by the kernel */
 	aligned_u64		quota;
-	struct xt_quota_info	*master;
+	struct xt_quota_priv	*master;
 };
 
 #endif /* _XT_QUOTA_H */
diff --git a/include/linux/netfilter/xt_statistic.h b/include/linux/netfilter/xt_statistic.h
index 3d38bc975048..8f521ab49ef7 100644
--- a/include/linux/netfilter/xt_statistic.h
+++ b/include/linux/netfilter/xt_statistic.h
@@ -13,6 +13,8 @@ enum xt_statistic_flags {
 };
 #define XT_STATISTIC_MASK		0x1
 
+struct xt_statistic_priv;
+
 struct xt_statistic_info {
 	u_int16_t			mode;
 	u_int16_t			flags;
@@ -23,11 +25,10 @@ struct xt_statistic_info {
 		struct {
 			u_int32_t	every;
 			u_int32_t	packet;
-			/* Used internally by the kernel */
-			u_int32_t	count;
+			u_int32_t	count; /* unused */
 		} nth;
 	} u;
-	struct xt_statistic_info	*master __attribute__((aligned(8)));
+	struct xt_statistic_priv *master __attribute__((aligned(8)));
 };
 
 #endif /* _XT_STATISTIC_H */
diff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c
index c908d69a5595..2e8089ecd0af 100644
--- a/net/netfilter/xt_limit.c
+++ b/net/netfilter/xt_limit.c
@@ -14,6 +14,11 @@
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter/xt_limit.h>
 
+struct xt_limit_priv {
+	unsigned long prev;
+	uint32_t credit;
+};
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Herve Eychenne <rv@wallfire.org>");
 MODULE_DESCRIPTION("Xtables: rate-limit match");
@@ -60,18 +65,18 @@ static DEFINE_SPINLOCK(limit_lock);
 static bool
 limit_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	struct xt_rateinfo *r =
-		((const struct xt_rateinfo *)par->matchinfo)->master;
+	const struct xt_rateinfo *r = par->matchinfo;
+	struct xt_limit_priv *priv = r->master;
 	unsigned long now = jiffies;
 
 	spin_lock_bh(&limit_lock);
-	r->credit += (now - xchg(&r->prev, now)) * CREDITS_PER_JIFFY;
-	if (r->credit > r->credit_cap)
-		r->credit = r->credit_cap;
+	priv->credit += (now - xchg(&priv->prev, now)) * CREDITS_PER_JIFFY;
+	if (priv->credit > r->credit_cap)
+		priv->credit = r->credit_cap;
 
-	if (r->credit >= r->cost) {
+	if (priv->credit >= r->cost) {
 		/* We're not limited. */
-		r->credit -= r->cost;
+		priv->credit -= r->cost;
 		spin_unlock_bh(&limit_lock);
 		return true;
 	}
@@ -95,6 +100,7 @@ user2credits(u_int32_t user)
 static bool limit_mt_check(const struct xt_mtchk_param *par)
 {
 	struct xt_rateinfo *r = par->matchinfo;
+	struct xt_limit_priv *priv;
 
 	/* Check for overflow. */
 	if (r->burst == 0
@@ -104,19 +110,30 @@ static bool limit_mt_check(const struct xt_mtchk_param *par)
 		return false;
 	}
 
-	/* For SMP, we only want to use one set of counters. */
-	r->master = r;
+	priv = kmalloc(sizeof(*priv), GFP_KERNEL);
+	if (priv == NULL)
+		return -ENOMEM;
+
+	/* For SMP, we only want to use one set of state. */
+	r->master = priv;
 	if (r->cost == 0) {
 		/* User avg in seconds * XT_LIMIT_SCALE: convert to jiffies *
 		   128. */
-		r->prev = jiffies;
-		r->credit = user2credits(r->avg * r->burst);	 /* Credits full. */
+		priv->prev = jiffies;
+		priv->credit = user2credits(r->avg * r->burst); /* Credits full. */
 		r->credit_cap = user2credits(r->avg * r->burst); /* Credits full. */
 		r->cost = user2credits(r->avg);
 	}
 	return true;
 }
 
+static void limit_mt_destroy(const struct xt_mtdtor_param *par)
+{
+	const struct xt_rateinfo *info = par->matchinfo;
+
+	kfree(info->master);
+}
+
 #ifdef CONFIG_COMPAT
 struct compat_xt_rateinfo {
 	u_int32_t avg;
@@ -167,6 +184,7 @@ static struct xt_match limit_mt_reg __read_mostly = {
 	.family           = NFPROTO_UNSPEC,
 	.match            = limit_mt,
 	.checkentry       = limit_mt_check,
+	.destroy          = limit_mt_destroy,
 	.matchsize        = sizeof(struct xt_rateinfo),
 #ifdef CONFIG_COMPAT
 	.compatsize       = sizeof(struct compat_xt_rateinfo),
diff --git a/net/netfilter/xt_quota.c b/net/netfilter/xt_quota.c
index c84fce5e0f3e..01dd07b764ec 100644
--- a/net/netfilter/xt_quota.c
+++ b/net/netfilter/xt_quota.c
@@ -9,6 +9,10 @@
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter/xt_quota.h>
 
+struct xt_quota_priv {
+	uint64_t quota;
+};
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Sam Johnston <samj@samj.net>");
 MODULE_DESCRIPTION("Xtables: countdown quota match");
@@ -20,18 +24,20 @@ static DEFINE_SPINLOCK(quota_lock);
 static bool
 quota_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	struct xt_quota_info *q =
-		((const struct xt_quota_info *)par->matchinfo)->master;
+	struct xt_quota_info *q = (void *)par->matchinfo;
+	struct xt_quota_priv *priv = q->master;
 	bool ret = q->flags & XT_QUOTA_INVERT;
 
 	spin_lock_bh(&quota_lock);
-	if (q->quota >= skb->len) {
-		q->quota -= skb->len;
+	if (priv->quota >= skb->len) {
+		priv->quota -= skb->len;
 		ret = !ret;
 	} else {
 		/* we do not allow even small packets from now on */
-		q->quota = 0;
+		priv->quota = 0;
 	}
+	/* Copy quota back to matchinfo so that iptables can display it */
+	q->quota = priv->quota;
 	spin_unlock_bh(&quota_lock);
 
 	return ret;
@@ -43,17 +49,28 @@ static bool quota_mt_check(const struct xt_mtchk_param *par)
 
 	if (q->flags & ~XT_QUOTA_MASK)
 		return false;
-	/* For SMP, we only want to use one set of counters. */
-	q->master = q;
+
+	q->master = kmalloc(sizeof(*q->master), GFP_KERNEL);
+	if (q->master == NULL)
+		return -ENOMEM;
+
 	return true;
 }
 
+static void quota_mt_destroy(const struct xt_mtdtor_param *par)
+{
+	const struct xt_quota_info *q = par->matchinfo;
+
+	kfree(q->master);
+}
+
 static struct xt_match quota_mt_reg __read_mostly = {
 	.name       = "quota",
 	.revision   = 0,
 	.family     = NFPROTO_UNSPEC,
 	.match      = quota_mt,
 	.checkentry = quota_mt_check,
+	.destroy    = quota_mt_destroy,
 	.matchsize  = sizeof(struct xt_quota_info),
 	.me         = THIS_MODULE,
 };
diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c
index 0d75141139d5..d8c0f8f1a78e 100644
--- a/net/netfilter/xt_statistic.c
+++ b/net/netfilter/xt_statistic.c
@@ -16,6 +16,10 @@
 #include <linux/netfilter/xt_statistic.h>
 #include <linux/netfilter/x_tables.h>
 
+struct xt_statistic_priv {
+	uint32_t count;
+};
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
 MODULE_DESCRIPTION("Xtables: statistics-based matching (\"Nth\", random)");
@@ -27,7 +31,7 @@ static DEFINE_SPINLOCK(nth_lock);
 static bool
 statistic_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	struct xt_statistic_info *info = (void *)par->matchinfo;
+	const struct xt_statistic_info *info = par->matchinfo;
 	bool ret = info->flags & XT_STATISTIC_INVERT;
 
 	switch (info->mode) {
@@ -36,10 +40,9 @@ statistic_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 			ret = !ret;
 		break;
 	case XT_STATISTIC_MODE_NTH:
-		info = info->master;
 		spin_lock_bh(&nth_lock);
-		if (info->u.nth.count++ == info->u.nth.every) {
-			info->u.nth.count = 0;
+		if (info->master->count++ == info->u.nth.every) {
+			info->master->count = 0;
 			ret = !ret;
 		}
 		spin_unlock_bh(&nth_lock);
@@ -56,16 +59,31 @@ static bool statistic_mt_check(const struct xt_mtchk_param *par)
 	if (info->mode > XT_STATISTIC_MODE_MAX ||
 	    info->flags & ~XT_STATISTIC_MASK)
 		return false;
-	info->master = info;
+
+	info->master = kzalloc(sizeof(*info->master), GFP_KERNEL);
+	if (info->master == NULL) {
+		printk(KERN_ERR KBUILD_MODNAME ": Out of memory\n");
+		return false;
+	}
+	info->master->count = info->u.nth.count;
+
 	return true;
 }
 
+static void statistic_mt_destroy(const struct xt_mtdtor_param *par)
+{
+	const struct xt_statistic_info *info = par->matchinfo;
+
+	kfree(info->master);
+}
+
 static struct xt_match xt_statistic_mt_reg __read_mostly = {
 	.name       = "statistic",
 	.revision   = 0,
 	.family     = NFPROTO_UNSPEC,
 	.match      = statistic_mt,
 	.checkentry = statistic_mt_check,
+	.destroy    = statistic_mt_destroy,
 	.matchsize  = sizeof(struct xt_statistic_info),
 	.me         = THIS_MODULE,
 };
-- 
cgit v1.2.3


From 0269ea4937343536ec7e85649932bc8c9686ea78 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 16 Mar 2009 17:10:36 +0100
Subject: netfilter: xtables: add cluster match

This patch adds the iptables cluster match. This match can be used
to deploy gateway and back-end load-sharing clusters. The cluster
can be composed of 32 nodes maximum (although I have only tested
this with two nodes, so I cannot tell what is the real scalability
limit of this solution in terms of cluster nodes).

Assuming that all the nodes see all packets (see below for an
example on how to do that if your switch does not allow this), the
cluster match decides if this node has to handle a packet given:

	(jhash(source IP) % total_nodes) & node_mask

For related connections, the master conntrack is used. The following
is an example of its use to deploy a gateway cluster composed of two
nodes (where this is the node 1):

iptables -I PREROUTING -t mangle -i eth1 -m cluster \
	--cluster-total-nodes 2 --cluster-local-node 1 \
	--cluster-proc-name eth1 -j MARK --set-mark 0xffff
iptables -A PREROUTING -t mangle -i eth1 \
	-m mark ! --mark 0xffff -j DROP
iptables -A PREROUTING -t mangle -i eth2 -m cluster \
	--cluster-total-nodes 2 --cluster-local-node 1 \
	--cluster-proc-name eth2 -j MARK --set-mark 0xffff
iptables -A PREROUTING -t mangle -i eth2 \
	-m mark ! --mark 0xffff -j DROP

And the following commands to make all nodes see the same packets:

ip maddr add 01:00:5e:00:01:01 dev eth1
ip maddr add 01:00:5e:00:01:02 dev eth2
arptables -I OUTPUT -o eth1 --h-length 6 \
	-j mangle --mangle-mac-s 01:00:5e:00:01:01
arptables -I INPUT -i eth1 --h-length 6 \
	--destination-mac 01:00:5e:00:01:01 \
	-j mangle --mangle-mac-d 00:zz:yy:xx:5a:27
arptables -I OUTPUT -o eth2 --h-length 6 \
	-j mangle --mangle-mac-s 01:00:5e:00:01:02
arptables -I INPUT -i eth2 --h-length 6 \
	--destination-mac 01:00:5e:00:01:02 \
	-j mangle --mangle-mac-d 00:zz:yy:xx:5a:27

In the case of TCP connections, pickup facility has to be disabled
to avoid marking TCP ACK packets coming in the reply direction as
valid.

echo 0 > /proc/sys/net/netfilter/nf_conntrack_tcp_loose

BTW, some final notes:

 * This match mangles the skbuff pkt_type in case that it detects
PACKET_MULTICAST for a non-multicast address. This may be done in
a PKTTYPE target for this sole purpose.
 * This match supersedes the CLUSTERIP target.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/linux/netfilter/Kbuild       |   1 +
 include/linux/netfilter/xt_cluster.h |  15 ++++
 net/netfilter/Kconfig                |  16 ++++
 net/netfilter/Makefile               |   1 +
 net/netfilter/xt_cluster.c           | 164 +++++++++++++++++++++++++++++++++++
 5 files changed, 197 insertions(+)
 create mode 100644 include/linux/netfilter/xt_cluster.h
 create mode 100644 net/netfilter/xt_cluster.c

(limited to 'include')

diff --git a/include/linux/netfilter/Kbuild b/include/linux/netfilter/Kbuild
index 947b47d7f6c0..af9d2fb97212 100644
--- a/include/linux/netfilter/Kbuild
+++ b/include/linux/netfilter/Kbuild
@@ -21,6 +21,7 @@ header-y += xt_connbytes.h
 header-y += xt_connlimit.h
 header-y += xt_connmark.h
 header-y += xt_conntrack.h
+header-y += xt_cluster.h
 header-y += xt_dccp.h
 header-y += xt_dscp.h
 header-y += xt_esp.h
diff --git a/include/linux/netfilter/xt_cluster.h b/include/linux/netfilter/xt_cluster.h
new file mode 100644
index 000000000000..5e0a0d07b526
--- /dev/null
+++ b/include/linux/netfilter/xt_cluster.h
@@ -0,0 +1,15 @@
+#ifndef _XT_CLUSTER_MATCH_H
+#define _XT_CLUSTER_MATCH_H
+
+enum xt_cluster_flags {
+	XT_CLUSTER_F_INV	= (1 << 0)
+};
+
+struct xt_cluster_match_info {
+	u_int32_t		total_nodes;
+	u_int32_t		node_mask;
+	u_int32_t		hash_seed;
+	u_int32_t		flags;
+};
+
+#endif /* _XT_CLUSTER_MATCH_H */
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index cdbaaff6d0d6..2562d05dbaf5 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -527,6 +527,22 @@ config NETFILTER_XT_TARGET_TCPOPTSTRIP
 	  This option adds a "TCPOPTSTRIP" target, which allows you to strip
 	  TCP options from TCP packets.
 
+config NETFILTER_XT_MATCH_CLUSTER
+	tristate '"cluster" match support'
+	depends on NF_CONNTRACK
+	depends on NETFILTER_ADVANCED
+	---help---
+	  This option allows you to build work-load-sharing clusters of
+	  network servers/stateful firewalls without having a dedicated
+	  load-balancing router/server/switch. Basically, this match returns
+	  true when the packet must be handled by this cluster node. Thus,
+	  all nodes see all packets and this match decides which node handles
+	  what packets. The work-load sharing algorithm is based on source
+	  address hashing.
+
+	  If you say Y or M here, try `iptables -m cluster --help` for
+	  more information.
+
 config NETFILTER_XT_MATCH_COMMENT
 	tristate  '"comment" match support'
 	depends on NETFILTER_ADVANCED
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 7a9b8397573a..6282060fbda9 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP) += xt_TCPOPTSTRIP.o
 obj-$(CONFIG_NETFILTER_XT_TARGET_TRACE) += xt_TRACE.o
 
 # matches
+obj-$(CONFIG_NETFILTER_XT_MATCH_CLUSTER) += xt_cluster.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_COMMENT) += xt_comment.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_CONNBYTES) += xt_connbytes.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_CONNLIMIT) += xt_connlimit.o
diff --git a/net/netfilter/xt_cluster.c b/net/netfilter/xt_cluster.c
new file mode 100644
index 000000000000..ad5bd890e4e8
--- /dev/null
+++ b/net/netfilter/xt_cluster.c
@@ -0,0 +1,164 @@
+/*
+ * (C) 2008-2009 Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * 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.
+ */
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/jhash.h>
+#include <linux/ip.h>
+#include <net/ipv6.h>
+
+#include <linux/netfilter/x_tables.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <linux/netfilter/xt_cluster.h>
+
+static inline u_int32_t nf_ct_orig_ipv4_src(const struct nf_conn *ct)
+{
+	return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip;
+}
+
+static inline const void *nf_ct_orig_ipv6_src(const struct nf_conn *ct)
+{
+	return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip6;
+}
+
+static inline u_int32_t
+xt_cluster_hash_ipv4(u_int32_t ip, const struct xt_cluster_match_info *info)
+{
+	return jhash_1word(ip, info->hash_seed);
+}
+
+static inline u_int32_t
+xt_cluster_hash_ipv6(const void *ip, const struct xt_cluster_match_info *info)
+{
+	return jhash2(ip, NF_CT_TUPLE_L3SIZE / sizeof(__u32), info->hash_seed);
+}
+
+static inline u_int32_t
+xt_cluster_hash(const struct nf_conn *ct,
+		const struct xt_cluster_match_info *info)
+{
+	u_int32_t hash = 0;
+
+	switch(nf_ct_l3num(ct)) {
+	case AF_INET:
+		hash = xt_cluster_hash_ipv4(nf_ct_orig_ipv4_src(ct), info);
+		break;
+	case AF_INET6:
+		hash = xt_cluster_hash_ipv6(nf_ct_orig_ipv6_src(ct), info);
+		break;
+	default:
+		WARN_ON(1);
+		break;
+	}
+	return (((u64)hash * info->total_nodes) >> 32);
+}
+
+static inline bool
+xt_cluster_is_multicast_addr(const struct sk_buff *skb, u_int8_t family)
+{
+	bool is_multicast = false;
+
+	switch(family) {
+	case NFPROTO_IPV4:
+		is_multicast = ipv4_is_multicast(ip_hdr(skb)->daddr);
+		break;
+	case NFPROTO_IPV6:
+		is_multicast = ipv6_addr_type(&ipv6_hdr(skb)->daddr) &
+						IPV6_ADDR_MULTICAST;
+		break;
+	default:
+		WARN_ON(1);
+		break;
+	}
+	return is_multicast;
+}
+
+static bool
+xt_cluster_mt(const struct sk_buff *skb, const struct xt_match_param *par)
+{
+	struct sk_buff *pskb = (struct sk_buff *)skb;
+	const struct xt_cluster_match_info *info = par->matchinfo;
+	const struct nf_conn *ct;
+	enum ip_conntrack_info ctinfo;
+	unsigned long hash;
+
+	/* This match assumes that all nodes see the same packets. This can be
+	 * achieved if the switch that connects the cluster nodes support some
+	 * sort of 'port mirroring'. However, if your switch does not support
+	 * this, your cluster nodes can reply ARP request using a multicast MAC
+	 * address. Thus, your switch will flood the same packets to the
+	 * cluster nodes with the same multicast MAC address. Using a multicast
+	 * link address is a RFC 1812 (section 3.3.2) violation, but this works
+	 * fine in practise.
+	 *
+	 * Unfortunately, if you use the multicast MAC address, the link layer
+	 * sets skbuff's pkt_type to PACKET_MULTICAST, which is not accepted
+	 * by TCP and others for packets coming to this node. For that reason,
+	 * this match mangles skbuff's pkt_type if it detects a packet
+	 * addressed to a unicast address but using PACKET_MULTICAST. Yes, I
+	 * know, matches should not alter packets, but we are doing this here
+	 * because we would need to add a PKTTYPE target for this sole purpose.
+	 */
+	if (!xt_cluster_is_multicast_addr(skb, par->family) &&
+	    skb->pkt_type == PACKET_MULTICAST) {
+	    	pskb->pkt_type = PACKET_HOST;
+	}
+
+	ct = nf_ct_get(skb, &ctinfo);
+	if (ct == NULL)
+		return false;
+
+	if (ct == &nf_conntrack_untracked)
+		return false;
+
+	if (ct->master)
+		hash = xt_cluster_hash(ct->master, info);
+	else
+		hash = xt_cluster_hash(ct, info);
+
+	return !!((1 << hash) & info->node_mask) ^
+	       !!(info->flags & XT_CLUSTER_F_INV);
+}
+
+static bool xt_cluster_mt_checkentry(const struct xt_mtchk_param *par)
+{
+	struct xt_cluster_match_info *info = par->matchinfo;
+
+	if (info->node_mask >= (1 << info->total_nodes)) {
+		printk(KERN_ERR "xt_cluster: this node mask cannot be "
+				"higher than the total number of nodes\n");
+		return false;
+	}
+	return true;
+}
+
+static struct xt_match xt_cluster_match __read_mostly = {
+	.name		= "cluster",
+	.family		= NFPROTO_UNSPEC,
+	.match		= xt_cluster_mt,
+	.checkentry	= xt_cluster_mt_checkentry,
+	.matchsize	= sizeof(struct xt_cluster_match_info),
+	.me		= THIS_MODULE,
+};
+
+static int __init xt_cluster_mt_init(void)
+{
+	return xt_register_match(&xt_cluster_match);
+}
+
+static void __exit xt_cluster_mt_fini(void)
+{
+	xt_unregister_match(&xt_cluster_match);
+}
+
+MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Xtables: hash-based cluster match");
+MODULE_ALIAS("ipt_cluster");
+MODULE_ALIAS("ip6t_cluster");
+module_init(xt_cluster_mt_init);
+module_exit(xt_cluster_mt_fini);
-- 
cgit v1.2.3


From d1c76af9e2434fac3add561e26c61b06503de986 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 16 Mar 2009 10:50:02 -0700
Subject: GRO: Move netpoll checks to correct location

As my netpoll fix for net doesn't really work for net-next, we
need this update to move the checks into the right place.  As it
stands we may pass freed skbs to netpoll_receive_skb.

This patch also introduces a netpoll_rx_on function to avoid GRO
completely if we're invoked through netpoll.  This might seem
paranoid but as netpoll may have an external receive hook it's
better to be safe than sorry.  I don't think we need this for
2.6.29 though since there's nothing immediately broken by it.

This patch also moves the GRO_* return values to netdevice.h since
VLAN needs them too (I tried to avoid this originally but alas
this seems to be the easiest way out).  This fixes a bug in VLAN
where it continued to use the old return value 2 instead of the
correct GRO_DROP.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h |  8 ++++++++
 include/linux/netpoll.h   | 11 +++++++++++
 net/8021q/vlan_core.c     | 11 ++++-------
 net/core/dev.c            | 17 +++--------------
 4 files changed, 26 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 493b065f76d7..be3ebd7e8ce5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -330,6 +330,14 @@ enum
 	NAPI_STATE_NPSVC,	/* Netpoll - don't dequeue from poll_list */
 };
 
+enum {
+	GRO_MERGED,
+	GRO_MERGED_FREE,
+	GRO_HELD,
+	GRO_NORMAL,
+	GRO_DROP,
+};
+
 extern void __napi_schedule(struct napi_struct *n);
 
 static inline int napi_disable_pending(struct napi_struct *n)
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index e38d3c9dccda..de99025f2c5d 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -63,6 +63,13 @@ static inline int netpoll_rx(struct sk_buff *skb)
 	return ret;
 }
 
+static inline int netpoll_rx_on(struct sk_buff *skb)
+{
+	struct netpoll_info *npinfo = skb->dev->npinfo;
+
+	return npinfo && (npinfo->rx_np || npinfo->rx_flags);
+}
+
 static inline int netpoll_receive_skb(struct sk_buff *skb)
 {
 	if (!list_empty(&skb->dev->napi_list))
@@ -99,6 +106,10 @@ static inline int netpoll_rx(struct sk_buff *skb)
 {
 	return 0;
 }
+static inline int netpoll_rx_on(struct sk_buff *skb)
+{
+	return 0;
+}
 static inline int netpoll_receive_skb(struct sk_buff *skb)
 {
 	return 0;
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 2d6e405fc498..6227248597c4 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -79,6 +79,9 @@ static int vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
 {
 	struct sk_buff *p;
 
+	if (netpoll_rx_on(skb))
+		return GRO_NORMAL;
+
 	if (skb_bond_should_drop(skb))
 		goto drop;
 
@@ -98,7 +101,7 @@ static int vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
 	return dev_gro_receive(napi, skb);
 
 drop:
-	return 2;
+	return GRO_DROP;
 }
 
 int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
@@ -106,9 +109,6 @@ int vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
 {
 	skb_gro_reset_offset(skb);
 
-	if (netpoll_receive_skb(skb))
-		return NET_RX_DROP;
-
 	return napi_skb_finish(vlan_gro_common(napi, grp, vlan_tci, skb), skb);
 }
 EXPORT_SYMBOL(vlan_gro_receive);
@@ -121,9 +121,6 @@ int vlan_gro_frags(struct napi_struct *napi, struct vlan_group *grp,
 	if (!skb)
 		return NET_RX_DROP;
 
-	if (netpoll_receive_skb(skb))
-		return NET_RX_DROP;
-
 	return napi_frags_finish(napi, skb,
 				 vlan_gro_common(napi, grp, vlan_tci, skb));
 }
diff --git a/net/core/dev.c b/net/core/dev.c
index 033d7ca28e6e..7bd3c29c5a78 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -135,14 +135,6 @@
 /* This should be increased if a protocol with a bigger head is added. */
 #define GRO_MAX_HEAD (MAX_HEADER + 128)
 
-enum {
-	GRO_MERGED,
-	GRO_MERGED_FREE,
-	GRO_HELD,
-	GRO_NORMAL,
-	GRO_DROP,
-};
-
 /*
  *	The list of packet types we will receive (as opposed to discard)
  *	and the routines to invoke.
@@ -2474,6 +2466,9 @@ static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	struct sk_buff *p;
 
+	if (netpoll_rx_on(skb))
+		return GRO_NORMAL;
+
 	for (p = napi->gro_list; p; p = p->next) {
 		NAPI_GRO_CB(p)->same_flow = !compare_ether_header(
 			skb_mac_header(p), skb_gro_mac_header(skb));
@@ -2487,9 +2482,6 @@ int napi_skb_finish(int ret, struct sk_buff *skb)
 {
 	int err = NET_RX_SUCCESS;
 
-	if (netpoll_receive_skb(skb))
-		return NET_RX_DROP;
-
 	switch (ret) {
 	case GRO_NORMAL:
 		return netif_receive_skb(skb);
@@ -2587,9 +2579,6 @@ int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret)
 {
 	int err = NET_RX_SUCCESS;
 
-	if (netpoll_receive_skb(skb))
-		return NET_RX_DROP;
-
 	switch (ret) {
 	case GRO_NORMAL:
 	case GRO_HELD:
-- 
cgit v1.2.3


From 0fee54cab7d5ebc58fad8c6a0703c4ea016405e3 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Mon, 9 Mar 2009 22:07:40 -0400
Subject: cfg80211: remove REGDOM_SET_BY_INIT

This is not used as we can always just assume the first
regulatory domain set will _always_ be a static regulatory
domain. REGDOM_SET_BY_CORE will be the first request from
cfg80211 for a regdomain and that then populates the first
regulatory request.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c | 2 +-
 drivers/net/wireless/ath9k/regd.c | 1 -
 include/net/cfg80211.h            | 3 ---
 net/wireless/reg.c                | 2 --
 4 files changed, 1 insertion(+), 7 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 5268697be79d..1d6b05c0d800 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1670,7 +1670,7 @@ int ath_attach(u16 devid, struct ath_softc *sc)
 	}
 	wiphy_apply_custom_regulatory(hw->wiphy, regd);
 	ath9k_reg_apply_radar_flags(hw->wiphy);
-	ath9k_reg_apply_world_flags(hw->wiphy, REGDOM_SET_BY_INIT);
+	ath9k_reg_apply_world_flags(hw->wiphy, REGDOM_SET_BY_DRIVER);
 
 	INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
 	INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
diff --git a/drivers/net/wireless/ath9k/regd.c b/drivers/net/wireless/ath9k/regd.c
index 639da975bf54..ff0afc02f3ce 100644
--- a/drivers/net/wireless/ath9k/regd.c
+++ b/drivers/net/wireless/ath9k/regd.c
@@ -341,7 +341,6 @@ int ath9k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
 
 	switch (request->initiator) {
 	case REGDOM_SET_BY_DRIVER:
-	case REGDOM_SET_BY_INIT:
 	case REGDOM_SET_BY_CORE:
 	case REGDOM_SET_BY_USER:
 		break;
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 75fa556728ce..f195ea460811 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -350,8 +350,6 @@ struct bss_parameters {
 
 /**
  * enum reg_set_by - Indicates who is trying to set the regulatory domain
- * @REGDOM_SET_BY_INIT: regulatory domain was set by initialization. We will be
- * 	using a static world regulatory domain by default.
  * @REGDOM_SET_BY_CORE: Core queried CRDA for a dynamic world regulatory domain.
  * @REGDOM_SET_BY_USER: User asked the wireless core to set the
  * 	regulatory domain.
@@ -362,7 +360,6 @@ struct bss_parameters {
  *	should consider.
  */
 enum reg_set_by {
-	REGDOM_SET_BY_INIT,
 	REGDOM_SET_BY_CORE,
 	REGDOM_SET_BY_USER,
 	REGDOM_SET_BY_DRIVER,
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index fa738be897a3..47ff44751b70 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1255,8 +1255,6 @@ static int ignore_request(struct wiphy *wiphy,
 		return 0;
 
 	switch (pending_request->initiator) {
-	case REGDOM_SET_BY_INIT:
-		return -EINVAL;
 	case REGDOM_SET_BY_CORE:
 		return -EINVAL;
 	case REGDOM_SET_BY_COUNTRY_IE:
-- 
cgit v1.2.3


From 7db90f4a25bd4184f3d36dfa4f512f53b0448da7 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Mon, 9 Mar 2009 22:07:41 -0400
Subject: cfg80211: move enum reg_set_by to nl80211.h

We do this so we can later inform userspace who set the
regulatory domain and provide details of the request.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c |  2 +-
 drivers/net/wireless/ath9k/regd.c | 31 ++++++++-------
 drivers/net/wireless/ath9k/regd.h |  3 +-
 include/linux/nl80211.h           | 19 +++++++++
 include/net/cfg80211.h            | 24 ++----------
 net/wireless/core.c               |  2 +-
 net/wireless/core.h               |  3 +-
 net/wireless/reg.c                | 82 +++++++++++++++++++++------------------
 8 files changed, 90 insertions(+), 76 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 1d6b05c0d800..e9b3f365f099 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1670,7 +1670,7 @@ int ath_attach(u16 devid, struct ath_softc *sc)
 	}
 	wiphy_apply_custom_regulatory(hw->wiphy, regd);
 	ath9k_reg_apply_radar_flags(hw->wiphy);
-	ath9k_reg_apply_world_flags(hw->wiphy, REGDOM_SET_BY_DRIVER);
+	ath9k_reg_apply_world_flags(hw->wiphy, NL80211_REGDOM_SET_BY_DRIVER);
 
 	INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
 	INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
diff --git a/drivers/net/wireless/ath9k/regd.c b/drivers/net/wireless/ath9k/regd.c
index ff0afc02f3ce..b8f9b6d6bec4 100644
--- a/drivers/net/wireless/ath9k/regd.c
+++ b/drivers/net/wireless/ath9k/regd.c
@@ -168,8 +168,9 @@ static bool ath9k_is_radar_freq(u16 center_freq)
  *   received a beacon on a channel we can enable active scan and
  *   adhoc (or beaconing).
  */
-static void ath9k_reg_apply_beaconing_flags(struct wiphy *wiphy,
-					     enum reg_set_by setby)
+static void ath9k_reg_apply_beaconing_flags(
+	struct wiphy *wiphy,
+	enum nl80211_reg_initiator initiator)
 {
 	enum ieee80211_band band;
 	struct ieee80211_supported_band *sband;
@@ -194,7 +195,7 @@ static void ath9k_reg_apply_beaconing_flags(struct wiphy *wiphy,
 			    (ch->flags & IEEE80211_CHAN_RADAR))
 				continue;
 
-			if (setby == REGDOM_SET_BY_COUNTRY_IE) {
+			if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 				r = freq_reg_info(wiphy, ch->center_freq,
 					&bandwidth, &reg_rule);
 				if (r)
@@ -226,8 +227,9 @@ static void ath9k_reg_apply_beaconing_flags(struct wiphy *wiphy,
 }
 
 /* Allows active scan scan on Ch 12 and 13 */
-static void ath9k_reg_apply_active_scan_flags(struct wiphy *wiphy,
-					      enum reg_set_by setby)
+static void ath9k_reg_apply_active_scan_flags(
+	struct wiphy *wiphy,
+	enum nl80211_reg_initiator initiator)
 {
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *ch;
@@ -241,7 +243,7 @@ static void ath9k_reg_apply_active_scan_flags(struct wiphy *wiphy,
 	 * If no country IE has been received always enable active scan
 	 * on these channels. This is only done for specific regulatory SKUs
 	 */
-	if (setby != REGDOM_SET_BY_COUNTRY_IE) {
+	if (initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 		ch = &sband->channels[11]; /* CH 12 */
 		if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN)
 			ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
@@ -308,7 +310,8 @@ void ath9k_reg_apply_radar_flags(struct wiphy *wiphy)
 	}
 }
 
-void ath9k_reg_apply_world_flags(struct wiphy *wiphy, enum reg_set_by setby)
+void ath9k_reg_apply_world_flags(struct wiphy *wiphy,
+				 enum nl80211_reg_initiator initiator)
 {
 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 	struct ath_wiphy *aphy = hw->priv;
@@ -320,11 +323,11 @@ void ath9k_reg_apply_world_flags(struct wiphy *wiphy, enum reg_set_by setby)
 	case 0x63:
 	case 0x66:
 	case 0x67:
-		ath9k_reg_apply_beaconing_flags(wiphy, setby);
+		ath9k_reg_apply_beaconing_flags(wiphy, initiator);
 		break;
 	case 0x68:
-		ath9k_reg_apply_beaconing_flags(wiphy, setby);
-		ath9k_reg_apply_active_scan_flags(wiphy, setby);
+		ath9k_reg_apply_beaconing_flags(wiphy, initiator);
+		ath9k_reg_apply_active_scan_flags(wiphy, initiator);
 		break;
 	}
 	return;
@@ -340,11 +343,11 @@ int ath9k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
 	ath9k_reg_apply_radar_flags(wiphy);
 
 	switch (request->initiator) {
-	case REGDOM_SET_BY_DRIVER:
-	case REGDOM_SET_BY_CORE:
-	case REGDOM_SET_BY_USER:
+	case NL80211_REGDOM_SET_BY_DRIVER:
+	case NL80211_REGDOM_SET_BY_CORE:
+	case NL80211_REGDOM_SET_BY_USER:
 		break;
-	case REGDOM_SET_BY_COUNTRY_IE:
+	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 		if (ath9k_is_world_regd(sc->sc_ah))
 			ath9k_reg_apply_world_flags(wiphy, request->initiator);
 		break;
diff --git a/drivers/net/wireless/ath9k/regd.h b/drivers/net/wireless/ath9k/regd.h
index d48160d0c0e9..8f885f3bc8df 100644
--- a/drivers/net/wireless/ath9k/regd.h
+++ b/drivers/net/wireless/ath9k/regd.h
@@ -236,7 +236,8 @@ enum CountryCode {
 bool ath9k_is_world_regd(struct ath_hw *ah);
 const struct ieee80211_regdomain *ath9k_world_regdomain(struct ath_hw *ah);
 const struct ieee80211_regdomain *ath9k_default_world_regdomain(void);
-void ath9k_reg_apply_world_flags(struct wiphy *wiphy, enum reg_set_by setby);
+void ath9k_reg_apply_world_flags(struct wiphy *wiphy,
+				 enum nl80211_reg_initiator initiator);
 void ath9k_reg_apply_radar_flags(struct wiphy *wiphy);
 int ath9k_regd_init(struct ath_hw *ah);
 bool ath9k_regd_is_eeprom_valid(struct ath_hw *ah);
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index f6e56370ea65..c0fd432b57dc 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -672,6 +672,25 @@ enum nl80211_bitrate_attr {
 	NL80211_BITRATE_ATTR_MAX = __NL80211_BITRATE_ATTR_AFTER_LAST - 1
 };
 
+/**
+ * enum nl80211_initiator - Indicates the initiator of a reg domain request
+ * @NL80211_REGDOM_SET_BY_CORE: Core queried CRDA for a dynamic world
+ * 	regulatory domain.
+ * @NL80211_REGDOM_SET_BY_USER: User asked the wireless core to set the
+ * 	regulatory domain.
+ * @NL80211_REGDOM_SET_BY_DRIVER: a wireless drivers has hinted to the
+ * 	wireless core it thinks its knows the regulatory domain we should be in.
+ * @NL80211_REGDOM_SET_BY_COUNTRY_IE: the wireless core has received an
+ * 	802.11 country information element with regulatory information it
+ * 	thinks we should consider.
+ */
+enum nl80211_reg_initiator {
+	NL80211_REGDOM_SET_BY_CORE,
+	NL80211_REGDOM_SET_BY_USER,
+	NL80211_REGDOM_SET_BY_DRIVER,
+	NL80211_REGDOM_SET_BY_COUNTRY_IE,
+};
+
 /**
  * enum nl80211_reg_rule_attr - regulatory rule attributes
  * @NL80211_ATTR_REG_RULE_FLAGS: a set of flags which specify additional
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f195ea460811..50f3fd9ff524 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -348,28 +348,10 @@ struct bss_parameters {
 	u8 basic_rates_len;
 };
 
-/**
- * enum reg_set_by - Indicates who is trying to set the regulatory domain
- * @REGDOM_SET_BY_CORE: Core queried CRDA for a dynamic world regulatory domain.
- * @REGDOM_SET_BY_USER: User asked the wireless core to set the
- * 	regulatory domain.
- * @REGDOM_SET_BY_DRIVER: a wireless drivers has hinted to the wireless core
- *	it thinks its knows the regulatory domain we should be in.
- * @REGDOM_SET_BY_COUNTRY_IE: the wireless core has received an 802.11 country
- *	information element with regulatory information it thinks we
- *	should consider.
- */
-enum reg_set_by {
-	REGDOM_SET_BY_CORE,
-	REGDOM_SET_BY_USER,
-	REGDOM_SET_BY_DRIVER,
-	REGDOM_SET_BY_COUNTRY_IE,
-};
-
 /**
  * enum environment_cap - Environment parsed from country IE
  * @ENVIRON_ANY: indicates country IE applies to both indoor and
- * 	outdoor operation.
+ *	outdoor operation.
  * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation
  * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation
  */
@@ -388,7 +370,7 @@ enum environment_cap {
  * 	and potentially inform users of which devices specifically
  * 	cased the conflicts.
  * @initiator: indicates who sent this request, could be any of
- * 	of those set in reg_set_by, %REGDOM_SET_BY_*
+ * 	of those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*)
  * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
  * 	regulatory domain. We have a few special codes:
  * 	00 - World regulatory domain
@@ -405,7 +387,7 @@ enum environment_cap {
  */
 struct regulatory_request {
 	int wiphy_idx;
-	enum reg_set_by initiator;
+	enum nl80211_reg_initiator initiator;
 	char alpha2[2];
 	bool intersect;
 	u32 country_ie_checksum;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index dd7f222919fe..c939f5ee065e 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -350,7 +350,7 @@ int wiphy_register(struct wiphy *wiphy)
 	mutex_lock(&cfg80211_mutex);
 
 	/* set up regulatory info */
-	wiphy_update_regulatory(wiphy, REGDOM_SET_BY_CORE);
+	wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
 
 	res = device_add(&drv->wiphy.dev);
 	if (res)
diff --git a/net/wireless/core.h b/net/wireless/core.h
index f6c53f5807f4..6acd483a61f8 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -136,7 +136,8 @@ extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
 			       char *newname);
 
 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
-void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby);
+void wiphy_update_regulatory(struct wiphy *wiphy,
+			     enum nl80211_reg_initiator setby);
 
 void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
 void cfg80211_bss_age(struct cfg80211_registered_device *dev,
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 47ff44751b70..68fde6d33dc3 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -857,8 +857,8 @@ static int freq_reg_info_regd(struct wiphy *wiphy,
 	 * Follow the driver's regulatory domain, if present, unless a country
 	 * IE has been processed or a user wants to help complaince further
 	 */
-	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
-	    last_request->initiator != REGDOM_SET_BY_USER &&
+	if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+	    last_request->initiator != NL80211_REGDOM_SET_BY_USER &&
 	    wiphy->regd)
 		regd = wiphy->regd;
 
@@ -943,7 +943,8 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 		 * http://tinyurl.com/11d-clarification
 		 */
 		if (r == -ERANGE &&
-		    last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+		    last_request->initiator ==
+		    NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 #ifdef CONFIG_CFG80211_REG_DEBUG
 			printk(KERN_DEBUG "cfg80211: Leaving channel %d MHz "
 				"intact on %s - no rule found in band on "
@@ -956,7 +957,8 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 		 * for the band so we respect its band definitions
 		 */
 #ifdef CONFIG_CFG80211_REG_DEBUG
-			if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
+			if (last_request->initiator ==
+			    NL80211_REGDOM_SET_BY_COUNTRY_IE)
 				printk(KERN_DEBUG "cfg80211: Disabling "
 					"channel %d MHz on %s due to "
 					"Country IE\n",
@@ -970,7 +972,7 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 
 	power_rule = &reg_rule->power_rule;
 
-	if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
+	if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 	    request_wiphy && request_wiphy == wiphy &&
 	    request_wiphy->strict_regulatory) {
 		/*
@@ -1011,11 +1013,12 @@ static void handle_band(struct wiphy *wiphy, enum ieee80211_band band)
 		handle_channel(wiphy, band, i);
 }
 
-static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
+static bool ignore_reg_update(struct wiphy *wiphy,
+			      enum nl80211_reg_initiator initiator)
 {
 	if (!last_request)
 		return true;
-	if (setby == REGDOM_SET_BY_CORE &&
+	if (initiator == NL80211_REGDOM_SET_BY_CORE &&
 		  wiphy->custom_regulatory)
 		return true;
 	/*
@@ -1028,12 +1031,12 @@ static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
 	return false;
 }
 
-static void update_all_wiphy_regulatory(enum reg_set_by setby)
+static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
 {
 	struct cfg80211_registered_device *drv;
 
 	list_for_each_entry(drv, &cfg80211_drv_list, list)
-		wiphy_update_regulatory(&drv->wiphy, setby);
+		wiphy_update_regulatory(&drv->wiphy, initiator);
 }
 
 static void handle_reg_beacon(struct wiphy *wiphy,
@@ -1124,7 +1127,7 @@ static bool reg_is_world_roaming(struct wiphy *wiphy)
 	if (is_world_regdom(cfg80211_regdomain->alpha2) ||
 	    (wiphy->regd && is_world_regdom(wiphy->regd->alpha2)))
 		return true;
-	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
+	if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
 	    wiphy->custom_regulatory)
 		return true;
 	return false;
@@ -1138,11 +1141,12 @@ static void reg_process_beacons(struct wiphy *wiphy)
 	wiphy_update_beacon_reg(wiphy);
 }
 
-void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
+void wiphy_update_regulatory(struct wiphy *wiphy,
+			     enum nl80211_reg_initiator initiator)
 {
 	enum ieee80211_band band;
 
-	if (ignore_reg_update(wiphy, setby))
+	if (ignore_reg_update(wiphy, initiator))
 		goto out;
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		if (wiphy->bands[band])
@@ -1255,15 +1259,16 @@ static int ignore_request(struct wiphy *wiphy,
 		return 0;
 
 	switch (pending_request->initiator) {
-	case REGDOM_SET_BY_CORE:
+	case NL80211_REGDOM_SET_BY_CORE:
 		return -EINVAL;
-	case REGDOM_SET_BY_COUNTRY_IE:
+	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 
 		last_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
 
 		if (unlikely(!is_an_alpha2(pending_request->alpha2)))
 			return -EINVAL;
-		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+		if (last_request->initiator ==
+		    NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 			if (last_wiphy != wiphy) {
 				/*
 				 * Two cards with two APs claiming different
@@ -1284,8 +1289,8 @@ static int ignore_request(struct wiphy *wiphy,
 			return -EALREADY;
 		}
 		return REG_INTERSECT;
-	case REGDOM_SET_BY_DRIVER:
-		if (last_request->initiator == REGDOM_SET_BY_CORE) {
+	case NL80211_REGDOM_SET_BY_DRIVER:
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_CORE) {
 			if (is_old_static_regdom(cfg80211_regdomain))
 				return 0;
 			if (regdom_changes(pending_request->alpha2))
@@ -1298,28 +1303,28 @@ static int ignore_request(struct wiphy *wiphy,
 		 * back in or if you add a new device for which the previously
 		 * loaded card also agrees on the regulatory domain.
 		 */
-		if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 		    !regdom_changes(pending_request->alpha2))
 			return -EALREADY;
 
 		return REG_INTERSECT;
-	case REGDOM_SET_BY_USER:
-		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
+	case NL80211_REGDOM_SET_BY_USER:
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE)
 			return REG_INTERSECT;
 		/*
 		 * If the user knows better the user should set the regdom
 		 * to their country before the IE is picked up
 		 */
-		if (last_request->initiator == REGDOM_SET_BY_USER &&
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_USER &&
 			  last_request->intersect)
 			return -EOPNOTSUPP;
 		/*
 		 * Process user requests only after previous user/driver/core
 		 * requests have been processed
 		 */
-		if (last_request->initiator == REGDOM_SET_BY_CORE ||
-		    last_request->initiator == REGDOM_SET_BY_DRIVER ||
-		    last_request->initiator == REGDOM_SET_BY_USER) {
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_CORE ||
+		    last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER ||
+		    last_request->initiator == NL80211_REGDOM_SET_BY_USER) {
 			if (regdom_changes(last_request->alpha2))
 				return -EAGAIN;
 		}
@@ -1359,7 +1364,8 @@ static int __regulatory_hint(struct wiphy *wiphy,
 	r = ignore_request(wiphy, pending_request);
 
 	if (r == REG_INTERSECT) {
-		if (pending_request->initiator == REGDOM_SET_BY_DRIVER) {
+		if (pending_request->initiator ==
+		    NL80211_REGDOM_SET_BY_DRIVER) {
 			r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
 			if (r) {
 				kfree(pending_request);
@@ -1374,7 +1380,8 @@ static int __regulatory_hint(struct wiphy *wiphy,
 		 * wiphy
 		 */
 		if (r == -EALREADY &&
-		    pending_request->initiator == REGDOM_SET_BY_DRIVER) {
+		    pending_request->initiator ==
+		    NL80211_REGDOM_SET_BY_DRIVER) {
 			r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
 			if (r) {
 				kfree(pending_request);
@@ -1425,7 +1432,7 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 	if (wiphy_idx_valid(reg_request->wiphy_idx))
 		wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
 
-	if (reg_request->initiator == REGDOM_SET_BY_DRIVER &&
+	if (reg_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 	    !wiphy) {
 		kfree(reg_request);
 		goto out;
@@ -1439,7 +1446,7 @@ out:
 	mutex_unlock(&cfg80211_mutex);
 }
 
-/* Processes regulatory hints, this is all the REGDOM_SET_BY_* */
+/* Processes regulatory hints, this is all the NL80211_REGDOM_SET_BY_* */
 static void reg_process_pending_hints(void)
 	{
 	struct regulatory_request *reg_request;
@@ -1523,7 +1530,7 @@ static int regulatory_hint_core(const char *alpha2)
 
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
-	request->initiator = REGDOM_SET_BY_CORE;
+	request->initiator = NL80211_REGDOM_SET_BY_CORE;
 
 	queue_regulatory_request(request);
 
@@ -1544,7 +1551,7 @@ int regulatory_hint_user(const char *alpha2)
 	request->wiphy_idx = WIPHY_IDX_STALE;
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
-	request->initiator = REGDOM_SET_BY_USER,
+	request->initiator = NL80211_REGDOM_SET_BY_USER,
 
 	queue_regulatory_request(request);
 
@@ -1570,7 +1577,7 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
 
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
-	request->initiator = REGDOM_SET_BY_DRIVER;
+	request->initiator = NL80211_REGDOM_SET_BY_DRIVER;
 
 	queue_regulatory_request(request);
 
@@ -1719,7 +1726,7 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	request->wiphy_idx = get_wiphy_idx(wiphy);
 	request->alpha2[0] = rd->alpha2[0];
 	request->alpha2[1] = rd->alpha2[1];
-	request->initiator = REGDOM_SET_BY_COUNTRY_IE;
+	request->initiator = NL80211_REGDOM_SET_BY_COUNTRY_IE;
 	request->country_ie_checksum = checksum;
 	request->country_ie_env = env;
 
@@ -1827,7 +1834,8 @@ static void print_regdomain(const struct ieee80211_regdomain *rd)
 
 	if (is_intersected_alpha2(rd->alpha2)) {
 
-		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+		if (last_request->initiator ==
+		    NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 			struct cfg80211_registered_device *drv;
 			drv = cfg80211_drv_by_wiphy_idx(
 				last_request->wiphy_idx);
@@ -1919,7 +1927,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	 * rd is non static (it means CRDA was present and was used last)
 	 * and the pending request came in from a country IE
 	 */
-	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE) {
+	if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 		/*
 		 * If someone else asked us to change the rd lets only bother
 		 * checking if the alpha2 changes if CRDA was already called
@@ -1951,7 +1959,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	if (!last_request->intersect) {
 		int r;
 
-		if (last_request->initiator != REGDOM_SET_BY_DRIVER) {
+		if (last_request->initiator != NL80211_REGDOM_SET_BY_DRIVER) {
 			reset_regdomains();
 			cfg80211_regdomain = rd;
 			return 0;
@@ -1975,7 +1983,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 
 	/* Intersection requires a bit more work */
 
-	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE) {
+	if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 
 		intersected_rd = regdom_intersect(rd, cfg80211_regdomain);
 		if (!intersected_rd)
@@ -1986,7 +1994,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		 * However if a driver requested this specific regulatory
 		 * domain we keep it for its private use
 		 */
-		if (last_request->initiator == REGDOM_SET_BY_DRIVER)
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER)
 			request_wiphy->regd = rd;
 		else
 			kfree(rd);
-- 
cgit v1.2.3


From 73d54c9e74c4d8ee8a41bc516f481f0f754eca32 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Mon, 9 Mar 2009 22:07:42 -0400
Subject: cfg80211: add regulatory netlink multicast group

This allows us to send to userspace "regulatory" events.
For now we just send an event when we change regulatory domains.
We also notify userspace when devices are using their own custom
world roaming regulatory domains.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h | 48 ++++++++++++++++++++++++++++++++++++++
 net/wireless/core.c     | 11 +++++++++
 net/wireless/nl80211.c  | 62 +++++++++++++++++++++++++++++++++++++++++++++++++
 net/wireless/nl80211.h  |  5 ++++
 net/wireless/reg.c      | 13 ++++++++++-
 5 files changed, 138 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index c0fd432b57dc..f33aa08dd9b3 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -150,6 +150,17 @@
  * @NL80211_CMD_SCAN_ABORTED: scan was aborted, for unspecified reasons,
  *	partial scan results may be available
  *
+ * @NL80211_CMD_REG_CHANGE: indicates to userspace the regulatory domain
+ * 	has been changed and provides details of the request information
+ * 	that caused the change such as who initiated the regulatory request
+ * 	(%NL80211_ATTR_REG_INITIATOR), the wiphy_idx
+ * 	(%NL80211_ATTR_REG_ALPHA2) on which the request was made from if
+ * 	the initiator was %NL80211_REGDOM_SET_BY_COUNTRY_IE or
+ * 	%NL80211_REGDOM_SET_BY_DRIVER, the type of regulatory domain
+ * 	set (%NL80211_ATTR_REG_TYPE), if the type of regulatory domain is
+ * 	%NL80211_REG_TYPE_COUNTRY the alpha2 to which we have moved on
+ * 	to (%NL80211_ATTR_REG_ALPHA2).
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -204,6 +215,8 @@ enum nl80211_commands {
 	NL80211_CMD_NEW_SCAN_RESULTS,
 	NL80211_CMD_SCAN_ABORTED,
 
+	NL80211_CMD_REG_CHANGE,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -218,6 +231,8 @@ enum nl80211_commands {
 #define NL80211_CMD_SET_BSS NL80211_CMD_SET_BSS
 #define NL80211_CMD_SET_MGMT_EXTRA_IE NL80211_CMD_SET_MGMT_EXTRA_IE
 
+#define NL80211_CMD_REG_CHANGE NL80211_CMD_REG_CHANGE
+
 /**
  * enum nl80211_attrs - nl80211 netlink attributes
  *
@@ -329,6 +344,11 @@ enum nl80211_commands {
  *	messages carried the same generation number)
  * @NL80211_ATTR_BSS: scan result BSS
  *
+ * @NL80211_ATTR_REG_INITIATOR: indicates who requested the regulatory domain
+ * 	currently in effect. This could be any of the %NL80211_REGDOM_SET_BY_*
+ * @NL80211_ATTR_REG_TYPE: indicates the type of the regulatory domain currently
+ * 	set. This can be one of the nl80211_reg_type (%NL80211_REGDOM_TYPE_*)
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -403,6 +423,9 @@ enum nl80211_attrs {
 	NL80211_ATTR_SCAN_GENERATION,
 	NL80211_ATTR_BSS,
 
+	NL80211_ATTR_REG_INITIATOR,
+	NL80211_ATTR_REG_TYPE,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -420,6 +443,8 @@ enum nl80211_attrs {
 #define NL80211_ATTR_WIPHY_CHANNEL_TYPE NL80211_ATTR_WIPHY_CHANNEL_TYPE
 #define NL80211_ATTR_MGMT_SUBTYPE NL80211_ATTR_MGMT_SUBTYPE
 #define NL80211_ATTR_IE NL80211_ATTR_IE
+#define NL80211_ATTR_REG_INITIATOR NL80211_ATTR_REG_INITIATOR
+#define NL80211_ATTR_REG_TYPE NL80211_ATTR_REG_TYPE
 
 #define NL80211_MAX_SUPP_RATES			32
 #define NL80211_MAX_SUPP_REG_RULES		32
@@ -691,6 +716,29 @@ enum nl80211_reg_initiator {
 	NL80211_REGDOM_SET_BY_COUNTRY_IE,
 };
 
+/**
+ * enum nl80211_reg_type - specifies the type of regulatory domain
+ * @NL80211_REGDOM_TYPE_COUNTRY: the regulatory domain set is one that pertains
+ *	to a specific country. When this is set you can count on the
+ *	ISO / IEC 3166 alpha2 country code being valid.
+ * @NL80211_REGDOM_TYPE_WORLD: the regulatory set domain is the world regulatory
+ * 	domain.
+ * @NL80211_REGDOM_TYPE_CUSTOM_WORLD: the regulatory domain set is a custom
+ * 	driver specific world regulatory domain. These do not apply system-wide
+ * 	and are only applicable to the individual devices which have requested
+ * 	them to be applied.
+ * @NL80211_REGDOM_TYPE_INTERSECTION: the regulatory domain set is the product
+ *	of an intersection between two regulatory domains -- the previously
+ *	set regulatory domain on the system and the last accepted regulatory
+ *	domain request to be processed.
+ */
+enum nl80211_reg_type {
+	NL80211_REGDOM_TYPE_COUNTRY,
+	NL80211_REGDOM_TYPE_WORLD,
+	NL80211_REGDOM_TYPE_CUSTOM_WORLD,
+	NL80211_REGDOM_TYPE_INTERSECTION,
+};
+
 /**
  * enum nl80211_reg_rule_attr - regulatory rule attributes
  * @NL80211_ATTR_REG_RULE_FLAGS: a set of flags which specify additional
diff --git a/net/wireless/core.c b/net/wireless/core.c
index c939f5ee065e..17fe39049740 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -365,6 +365,17 @@ int wiphy_register(struct wiphy *wiphy)
 	if (IS_ERR(drv->wiphy.debugfsdir))
 		drv->wiphy.debugfsdir = NULL;
 
+	if (wiphy->custom_regulatory) {
+		struct regulatory_request request;
+
+		request.wiphy_idx = get_wiphy_idx(wiphy);
+		request.initiator = NL80211_REGDOM_SET_BY_DRIVER;
+		request.alpha2[0] = '9';
+		request.alpha2[1] = '9';
+
+		nl80211_send_reg_change_event(&request);
+	}
+
 	res = 0;
 out_unlock:
 	mutex_unlock(&cfg80211_mutex);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 531bb67cf502..8ac3d26014a8 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2739,6 +2739,9 @@ static struct genl_multicast_group nl80211_config_mcgrp = {
 static struct genl_multicast_group nl80211_scan_mcgrp = {
 	.name = "scan",
 };
+static struct genl_multicast_group nl80211_regulatory_mcgrp = {
+	.name = "regulatory",
+};
 
 /* notification functions */
 
@@ -2818,6 +2821,61 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
 	genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
+/*
+ * This can happen on global regulatory changes or device specific settings
+ * based on custom world regulatory domains.
+ */
+void nl80211_send_reg_change_event(struct regulatory_request *request)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	/* Userspace can always count this one always being set */
+	NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
+
+	if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
+		NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
+			   NL80211_REGDOM_TYPE_WORLD);
+	else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
+		NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
+			   NL80211_REGDOM_TYPE_CUSTOM_WORLD);
+	else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
+		 request->intersect)
+		NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
+			   NL80211_REGDOM_TYPE_INTERSECTION);
+	else {
+		NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
+			   NL80211_REGDOM_TYPE_COUNTRY);
+		NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
+	}
+
+	if (wiphy_idx_valid(request->wiphy_idx))
+		NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
+
+	if (genlmsg_end(msg, hdr) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL);
+
+	return;
+
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+
 /* initialisation/exit functions */
 
 int nl80211_init(void)
@@ -2842,6 +2900,10 @@ int nl80211_init(void)
 	if (err)
 		goto err_out;
 
+	err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
+	if (err)
+		goto err_out;
+
 	return 0;
  err_out:
 	genl_unregister_family(&nl80211_fam);
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index 69787b621365..e65a3c38c52f 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -11,6 +11,7 @@ extern void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 				   struct net_device *netdev);
 extern void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
 				      struct net_device *netdev);
+extern void nl80211_send_reg_change_event(struct regulatory_request *request);
 #else
 static inline int nl80211_init(void)
 {
@@ -31,6 +32,10 @@ static inline void nl80211_send_scan_aborted(
 					struct cfg80211_registered_device *rdev,
 					struct net_device *netdev)
 {}
+static inline void
+nl80211_send_reg_change_event(struct regulatory_request *request)
+{
+}
 #endif /* CONFIG_NL80211 */
 
 #endif /* __NET_WIRELESS_NL80211_H */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 68fde6d33dc3..eb8b8ed16155 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -41,6 +41,7 @@
 #include <net/cfg80211.h>
 #include "core.h"
 #include "reg.h"
+#include "nl80211.h"
 
 /* Receipt of information from last regulatory request */
 static struct regulatory_request *last_request;
@@ -1403,8 +1404,16 @@ new_request:
 	pending_request = NULL;
 
 	/* When r == REG_INTERSECT we do need to call CRDA */
-	if (r < 0)
+	if (r < 0) {
+		/*
+		 * Since CRDA will not be called in this case as we already
+		 * have applied the requested regulatory domain before we just
+		 * inform userspace we have processed the request
+		 */
+		if (r == -EALREADY)
+			nl80211_send_reg_change_event(last_request);
 		return r;
+	}
 
 	/*
 	 * Note: When CONFIG_WIRELESS_OLD_REGULATORY is enabled
@@ -2084,6 +2093,8 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 
 	print_regdomain(cfg80211_regdomain);
 
+	nl80211_send_reg_change_event(last_request);
+
 	return r;
 }
 
-- 
cgit v1.2.3


From ac26c18bd35d982d1ba06020a992b1085fefc3e2 Mon Sep 17 00:00:00 2001
From: David Woodhouse <dwmw2@infradead.org>
Date: Thu, 12 Feb 2009 16:19:13 +0100
Subject: dma-debug: add function to dump dma mappings

This adds a function to dump the DMA mappings that the debugging code is
aware of -- either for a single device, or for _all_ devices.

This can be useful for debugging -- sticking a call to it in the DMA
page fault handler, for example, to see if the faulting address _should_
be mapped or not, and hence work out whether it's IOMMU bugs we're
seeing, or driver bugs.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---
 include/linux/dma-debug.h |  6 ++++++
 lib/dma-debug.c           | 30 ++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index 4985c6c5237e..46a11c10da04 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -76,6 +76,8 @@ extern void debug_dma_sync_sg_for_device(struct device *dev,
 					 struct scatterlist *sg,
 					 int nelems, int direction);
 
+extern void debug_dma_dump_mappings(struct device *dev);
+
 #else /* CONFIG_DMA_API_DEBUG */
 
 static inline void dma_debug_init(u32 num_entries)
@@ -156,6 +158,10 @@ static inline void debug_dma_sync_sg_for_device(struct device *dev,
 {
 }
 
+static inline void debug_dma_dump_mappings(struct device *dev)
+{
+}
+
 #endif /* CONFIG_DMA_API_DEBUG */
 
 #endif /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 9d11e89c2ee2..91ed1dfdbaac 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -193,6 +193,36 @@ static void hash_bucket_del(struct dma_debug_entry *entry)
 	list_del(&entry->list);
 }
 
+/*
+ * Dump mapping entries for debugging purposes
+ */
+void debug_dma_dump_mappings(struct device *dev)
+{
+	int idx;
+
+	for (idx = 0; idx < HASH_SIZE; idx++) {
+		struct hash_bucket *bucket = &dma_entry_hash[idx];
+		struct dma_debug_entry *entry;
+		unsigned long flags;
+
+		spin_lock_irqsave(&bucket->lock, flags);
+
+		list_for_each_entry(entry, &bucket->list, list) {
+			if (!dev || dev == entry->dev) {
+				dev_info(entry->dev,
+					 "%s idx %d P=%Lx D=%Lx L=%Lx %s\n",
+					 type2name[entry->type], idx,
+					 (unsigned long long)entry->paddr,
+					 entry->dev_addr, entry->size,
+					 dir2name[entry->direction]);
+			}
+		}
+
+		spin_unlock_irqrestore(&bucket->lock, flags);
+	}
+}
+EXPORT_SYMBOL(debug_dma_dump_mappings);
+
 /*
  * Wrapper function for adding an entry to the hash.
  * This function takes care of locking itself.
-- 
cgit v1.2.3


From 41531c8f5f05aba5ec645d9770557eedbf75b422 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Mon, 16 Mar 2009 17:32:14 +0100
Subject: dma-debug: add a check dma memory leaks

Impact: allow architectures to monitor busses for dma mem leakage

This patch adds checking code to detect if a device has pending DMA
operations when it is about to be unbound from its device driver.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 include/linux/dma-debug.h |  7 ++++++
 lib/dma-debug.c           | 55 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index 46a11c10da04..e851d23e91eb 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -24,9 +24,12 @@
 
 struct device;
 struct scatterlist;
+struct bus_type;
 
 #ifdef CONFIG_DMA_API_DEBUG
 
+extern void dma_debug_add_bus(struct bus_type *bus);
+
 extern void dma_debug_init(u32 num_entries);
 
 extern void debug_dma_map_page(struct device *dev, struct page *page,
@@ -80,6 +83,10 @@ extern void debug_dma_dump_mappings(struct device *dev);
 
 #else /* CONFIG_DMA_API_DEBUG */
 
+void dma_debug_add_bus(struct bus_type *bus)
+{
+}
+
 static inline void dma_debug_init(u32 num_entries)
 {
 }
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 6022eb4a0cd0..9a350b414a50 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -400,6 +400,61 @@ out_err:
 	return -ENOMEM;
 }
 
+static int device_dma_allocations(struct device *dev)
+{
+	struct dma_debug_entry *entry;
+	unsigned long flags;
+	int count = 0, i;
+
+	for (i = 0; i < HASH_SIZE; ++i) {
+		spin_lock_irqsave(&dma_entry_hash[i].lock, flags);
+		list_for_each_entry(entry, &dma_entry_hash[i].list, list) {
+			if (entry->dev == dev)
+				count += 1;
+		}
+		spin_unlock_irqrestore(&dma_entry_hash[i].lock, flags);
+	}
+
+	return count;
+}
+
+static int dma_debug_device_change(struct notifier_block *nb,
+				    unsigned long action, void *data)
+{
+	struct device *dev = data;
+	int count;
+
+
+	switch (action) {
+	case BUS_NOTIFY_UNBIND_DRIVER:
+		count = device_dma_allocations(dev);
+		if (count == 0)
+			break;
+		err_printk(dev, NULL, "DMA-API: device driver has pending "
+				"DMA allocations while released from device "
+				"[count=%d]\n", count);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+void dma_debug_add_bus(struct bus_type *bus)
+{
+	struct notifier_block *nb;
+
+	nb = kzalloc(sizeof(struct notifier_block), GFP_KERNEL);
+	if (nb == NULL) {
+		printk(KERN_ERR "dma_debug_add_bus: out of memory\n");
+		return;
+	}
+
+	nb->notifier_call = dma_debug_device_change;
+
+	bus_register_notifier(bus, nb);
+}
 
 /*
  * Let the architectures decide how many entries should be preallocated.
-- 
cgit v1.2.3


From 323a59613e5be6094c93261486de48a08d3a53f2 Mon Sep 17 00:00:00 2001
From: Dmitry Artamonow <mad_soft@inbox.ru>
Date: Fri, 13 Mar 2009 01:03:49 +0100
Subject: ALSA: drop outdated and broken sa11xx-uda1341 driver

It depends on L3 support from 2.4 kernel (CONFIG_L3) that never got
merged into mainline. Since there's no way to use it on any of
supported machines (iPaq h3100 or h3600), better drop it for now.
It can be reimplemented later using ASoC infrastructure (there's
already a driver for uda1341 codec in mainline, so only CPU and machine
parts need to be written).

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/uda1341.h    | 126 ------
 sound/arm/Kconfig          |  11 -
 sound/arm/Makefile         |   3 -
 sound/arm/sa11xx-uda1341.c | 984 ---------------------------------------------
 sound/i2c/Makefile         |   2 -
 sound/i2c/l3/Makefile      |   8 -
 sound/i2c/l3/uda1341.c     | 935 ------------------------------------------
 7 files changed, 2069 deletions(-)
 delete mode 100644 include/sound/uda1341.h
 delete mode 100644 sound/arm/sa11xx-uda1341.c
 delete mode 100644 sound/i2c/l3/Makefile
 delete mode 100644 sound/i2c/l3/uda1341.c

(limited to 'include')

diff --git a/include/sound/uda1341.h b/include/sound/uda1341.h
deleted file mode 100644
index 110d5dc3a2be..000000000000
--- a/include/sound/uda1341.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- *  linux/include/linux/l3/uda1341.h
- *
- * Philips UDA1341 mixer device driver for ALSA
- *
- * Copyright (c) 2002 Tomas Kasparek <tomas.kasparek@seznam.cz>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License.
- *
- * History:
- *
- * 2002-03-13 Tomas Kasparek Initial release - based on uda1341.h from OSS
- * 2002-03-30 Tomas Kasparek Proc filesystem support, complete mixer and DSP
- *                           features support
- */
-
-#define UDA1341_ALSA_NAME "snd-uda1341"
-
-/*
- * Default rate set after inicialization
- */
-#define AUDIO_RATE_DEFAULT	44100
-
-/*
- * UDA1341 L3 address and command types
- */
-#define UDA1341_L3ADDR		5
-#define UDA1341_DATA0		(UDA1341_L3ADDR << 2 | 0)
-#define UDA1341_DATA1		(UDA1341_L3ADDR << 2 | 1)
-#define UDA1341_STATUS		(UDA1341_L3ADDR << 2 | 2)
-
-enum uda1341_onoff {
-	OFF=0,
-	ON,
-};
-
-enum uda1341_format {
-	I2S=0,
-	LSB16,
-	LSB18,
-	LSB20,
-	MSB,
-	LSB16MSB,
-	LSB18MSB,
-	LSB20MSB,        
-};
-
-enum uda1341_fs {
-	F512=0,
-	F384,
-	F256,
-	Funused,
-};
-
-enum uda1341_peak {
-	BEFORE=0,
-	AFTER,
-};
-
-enum uda1341_filter {
-	FLAT=0,
-	MIN,
-	MIN2,
-	MAX,
-};
-
-enum uda1341_mixer {
-	DOUBLE,
-	LINE,
-	MIC,
-	MIXER,
-};
-
-enum uda1341_deemp {
-	NONE,
-	D32,
-	D44,
-	D48,
-};
-
-enum uda1341_config {
-	CMD_READ_REG = 0,
-	CMD_RESET,
-	CMD_FS,
-	CMD_FORMAT,
-	CMD_OGAIN,
-	CMD_IGAIN,
-	CMD_DAC,
-	CMD_ADC,
-	CMD_VOLUME,
-	CMD_BASS,
-	CMD_TREBBLE,
-	CMD_PEAK,
-	CMD_DEEMP,
-	CMD_MUTE,        
-	CMD_FILTER,
-	CMD_CH1,
-	CMD_CH2,
-	CMD_MIC,       
-	CMD_MIXER,
-	CMD_AGC,
-	CMD_IG,
-	CMD_AGC_TIME,
-	CMD_AGC_LEVEL,
-#ifdef CONFIG_PM
-	CMD_SUSPEND,
-	CMD_RESUME,
-#endif
-	CMD_LAST,
-};
-
-enum write_through {
-	//used in update_bits (write_cfg) to avoid l3_write - just update local copy of regs.
-	REGS_ONLY=0,
-	//update local regs and write value to uda1341 - do l3_write
-	FLUSH,
-};
-
-int __init snd_chip_uda1341_mixer_new(struct snd_card *card, struct l3_client **clnt);
-
-/*
- * Local variables:
- * indent-tabs-mode: t
- * End:
- */
diff --git a/sound/arm/Kconfig b/sound/arm/Kconfig
index f8e6de48d816..885683a3b0bd 100644
--- a/sound/arm/Kconfig
+++ b/sound/arm/Kconfig
@@ -11,17 +11,6 @@ menuconfig SND_ARM
 
 if SND_ARM
 
-config SND_SA11XX_UDA1341
-	tristate "SA11xx UDA1341TS driver (iPaq H3600)"
-	depends on ARCH_SA1100 && L3
-	select SND_PCM
-	help
-	  Say Y here if you have a Compaq iPaq H3x00 handheld computer
-	  and want to use its Philips UDA 1341 audio chip.
-
-	  To compile this driver as a module, choose M here: the module
-	  will be called snd-sa11xx-uda1341.
-
 config SND_ARMAACI
 	tristate "ARM PrimeCell PL041 AC Link support"
 	depends on ARM_AMBA
diff --git a/sound/arm/Makefile b/sound/arm/Makefile
index 2054de11de8a..5a549ed6c8aa 100644
--- a/sound/arm/Makefile
+++ b/sound/arm/Makefile
@@ -2,9 +2,6 @@
 # Makefile for ALSA
 #
 
-obj-$(CONFIG_SND_SA11XX_UDA1341) += snd-sa11xx-uda1341.o 
-snd-sa11xx-uda1341-objs		:= sa11xx-uda1341.o
-
 obj-$(CONFIG_SND_ARMAACI)	+= snd-aaci.o
 snd-aaci-objs			:= aaci.o devdma.o
 
diff --git a/sound/arm/sa11xx-uda1341.c b/sound/arm/sa11xx-uda1341.c
deleted file mode 100644
index 7101d3d8bae6..000000000000
--- a/sound/arm/sa11xx-uda1341.c
+++ /dev/null
@@ -1,984 +0,0 @@
-/*
- *  Driver for Philips UDA1341TS on Compaq iPAQ H3600 soundcard
- *  Copyright (C) 2002 Tomas Kasparek <tomas.kasparek@seznam.cz>
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License.
- * 
- * History:
- *
- * 2002-03-13   Tomas Kasparek  initial release - based on h3600-uda1341.c from OSS
- * 2002-03-20   Tomas Kasparek  playback over ALSA is working
- * 2002-03-28   Tomas Kasparek  playback over OSS emulation is working
- * 2002-03-29   Tomas Kasparek  basic capture is working (native ALSA)
- * 2002-03-29   Tomas Kasparek  capture is working (OSS emulation)
- * 2002-04-04   Tomas Kasparek  better rates handling (allow non-standard rates)
- * 2003-02-14   Brian Avery     fixed full duplex mode, other updates
- * 2003-02-20   Tomas Kasparek  merged updates by Brian (except HAL)
- * 2003-04-19   Jaroslav Kysela recoded DMA stuff to follow 2.4.18rmk3-hh24 kernel
- *                              working suspend and resume
- * 2003-04-28   Tomas Kasparek  updated work by Jaroslav to compile it under 2.5.x again
- *                              merged HAL layer (patches from Brian)
- */
-
-/***************************************************************************************************
-*
-* To understand what Alsa Drivers should be doing look at "Writing an Alsa Driver" by Takashi Iwai
-* available in the Alsa doc section on the website		
-* 
-* A few notes to make things clearer. The UDA1341 is hooked up to Serial port 4 on the SA1100.
-* We are using  SSP mode to talk to the UDA1341. The UDA1341 bit & wordselect clocks are generated
-* by this UART. Unfortunately, the clock only runs if the transmit buffer has something in it.
-* So, if we are just recording, we feed the transmit DMA stream a bunch of 0x0000 so that the
-* transmit buffer is full and the clock keeps going. The zeroes come from FLUSH_BASE_PHYS which
-* is a mem loc that always decodes to 0's w/ no off chip access.
-*
-* Some alsa terminology:
-*	frame => num_channels * sample_size  e.g stereo 16 bit is 2 * 16 = 32 bytes
-*	period => the least number of bytes that will generate an interrupt e.g. we have a 1024 byte
-*             buffer and 4 periods in the runtime structure this means we'll get an int every 256
-*             bytes or 4 times per buffer.
-*             A number of the sizes are in frames rather than bytes, use frames_to_bytes and
-*             bytes_to_frames to convert.  The easiest way to tell the units is to look at the
-*             type i.e. runtime-> buffer_size is in frames and its type is snd_pcm_uframes_t
-*             
-*	Notes about the pointer fxn:
-*	The pointer fxn needs to return the offset into the dma buffer in frames.
-*	Interrupts must be blocked before calling the dma_get_pos fxn to avoid race with interrupts.
-*
-*	Notes about pause/resume
-*	Implementing this would be complicated so it's skipped.  The problem case is:
-*	A full duplex connection is going, then play is paused. At this point you need to start xmitting
-*	0's to keep the record active which means you cant just freeze the dma and resume it later you'd
-*	need to	save off the dma info, and restore it properly on a resume.  Yeach!
-*
-*	Notes about transfer methods:
-*	The async write calls fail.  I probably need to implement something else to support them?
-* 
-***************************************************************************************************/
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/errno.h>
-#include <linux/ioctl.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-
-#ifdef CONFIG_PM
-#include <linux/pm.h>
-#endif
-
-#include <mach/hardware.h>
-#include <mach/h3600.h>
-#include <asm/mach-types.h>
-#include <asm/dma.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/initval.h>
-
-#include <linux/l3/l3.h>
-
-#undef DEBUG_MODE
-#undef DEBUG_FUNCTION_NAMES
-#include <sound/uda1341.h>
-
-/*
- * FIXME: Is this enough as autodetection of 2.4.X-rmkY-hhZ kernels?
- * We use DMA stuff from 2.4.18-rmk3-hh24 here to be able to compile this
- * module for Familiar 0.6.1
- */
-
-/* {{{ Type definitions */
-
-MODULE_AUTHOR("Tomas Kasparek <tomas.kasparek@seznam.cz>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("SA1100/SA1111 + UDA1341TS driver for ALSA");
-MODULE_SUPPORTED_DEVICE("{{UDA1341,iPAQ H3600 UDA1341TS}}");
-
-static char *id;	/* ID for this card */
-
-module_param(id, charp, 0444);
-MODULE_PARM_DESC(id, "ID string for SA1100/SA1111 + UDA1341TS soundcard.");
-
-struct audio_stream {
-	char *id;		/* identification string */
-	int stream_id;		/* numeric identification */	
-	dma_device_t dma_dev;	/* device identifier for DMA */
-#ifdef HH_VERSION
-	dmach_t dmach;		/* dma channel identification */
-#else
-	dma_regs_t *dma_regs;	/* points to our DMA registers */
-#endif
-	unsigned int active:1;	/* we are using this stream for transfer now */
-	int period;		/* current transfer period */
-	int periods;		/* current count of periods registerd in the DMA engine */
-	int tx_spin;		/* are we recoding - flag used to do DMA trans. for sync */
-	unsigned int old_offset;
-	spinlock_t dma_lock;	/* for locking in DMA operations (see dma-sa1100.c in the kernel) */
-	struct snd_pcm_substream *stream;
-};
-
-struct sa11xx_uda1341 {
-	struct snd_card *card;
-	struct l3_client *uda1341;
-	struct snd_pcm *pcm;
-	long samplerate;
-	struct audio_stream s[2];	/* playback & capture */
-};
-
-static unsigned int rates[] = {
-	8000,  10666, 10985, 14647,
-	16000, 21970, 22050, 24000,
-	29400, 32000, 44100, 48000,
-};
-
-static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
-	.count	= ARRAY_SIZE(rates),
-	.list	= rates,
-	.mask	= 0,
-};
-
-static struct platform_device *device;
-
-/* }}} */
-
-/* {{{ Clock and sample rate stuff */
-
-/*
- * Stop-gap solution until rest of hh.org HAL stuff is merged.
- */
-#define GPIO_H3600_CLK_SET0		GPIO_GPIO (12)
-#define GPIO_H3600_CLK_SET1		GPIO_GPIO (13)
-
-#ifdef CONFIG_SA1100_H3XXX
-#define	clr_sa11xx_uda1341_egpio(x)	clr_h3600_egpio(x)
-#define set_sa11xx_uda1341_egpio(x)	set_h3600_egpio(x)
-#else
-#error This driver could serve H3x00 handhelds only!
-#endif
-
-static void sa11xx_uda1341_set_audio_clock(long val)
-{
-	switch (val) {
-	case 24000: case 32000: case 48000:	/* 00: 12.288 MHz */
-		GPCR = GPIO_H3600_CLK_SET0 | GPIO_H3600_CLK_SET1;
-		break;
-
-	case 22050: case 29400: case 44100:	/* 01: 11.2896 MHz */
-		GPSR = GPIO_H3600_CLK_SET0;
-		GPCR = GPIO_H3600_CLK_SET1;
-		break;
-
-	case 8000: case 10666: case 16000:	/* 10: 4.096 MHz */
-		GPCR = GPIO_H3600_CLK_SET0;
-		GPSR = GPIO_H3600_CLK_SET1;
-		break;
-
-	case 10985: case 14647: case 21970:	/* 11: 5.6245 MHz */
-		GPSR = GPIO_H3600_CLK_SET0 | GPIO_H3600_CLK_SET1;
-		break;
-	}
-}
-
-static void sa11xx_uda1341_set_samplerate(struct sa11xx_uda1341 *sa11xx_uda1341, long rate)
-{
-	int clk_div = 0;
-	int clk=0;
-
-	/* We don't want to mess with clocks when frames are in flight */
-	Ser4SSCR0 &= ~SSCR0_SSE;
-	/* wait for any frame to complete */
-	udelay(125);
-
-	/*
-	 * We have the following clock sources:
-	 * 4.096 MHz, 5.6245 MHz, 11.2896 MHz, 12.288 MHz
-	 * Those can be divided either by 256, 384 or 512.
-	 * This makes up 12 combinations for the following samplerates...
-	 */
-	if (rate >= 48000)
-		rate = 48000;
-	else if (rate >= 44100)
-		rate = 44100;
-	else if (rate >= 32000)
-		rate = 32000;
-	else if (rate >= 29400)
-		rate = 29400;
-	else if (rate >= 24000)
-		rate = 24000;
-	else if (rate >= 22050)
-		rate = 22050;
-	else if (rate >= 21970)
-		rate = 21970;
-	else if (rate >= 16000)
-		rate = 16000;
-	else if (rate >= 14647)
-		rate = 14647;
-	else if (rate >= 10985)
-		rate = 10985;
-	else if (rate >= 10666)
-		rate = 10666;
-	else
-		rate = 8000;
-
-	/* Set the external clock generator */
-	
-	sa11xx_uda1341_set_audio_clock(rate);
-
-	/* Select the clock divisor */
-	switch (rate) {
-	case 8000:
-	case 10985:
-	case 22050:
-	case 24000:
-		clk = F512;
-		clk_div = SSCR0_SerClkDiv(16);
-		break;
-	case 16000:
-	case 21970:
-	case 44100:
-	case 48000:
-		clk = F256;
-		clk_div = SSCR0_SerClkDiv(8);
-		break;
-	case 10666:
-	case 14647:
-	case 29400:
-	case 32000:
-		clk = F384;
-		clk_div = SSCR0_SerClkDiv(12);
-		break;
-	}
-
-	/* FMT setting should be moved away when other FMTs are added (FIXME) */
-	l3_command(sa11xx_uda1341->uda1341, CMD_FORMAT, (void *)LSB16);
-	
-	l3_command(sa11xx_uda1341->uda1341, CMD_FS, (void *)clk);        
-	Ser4SSCR0 = (Ser4SSCR0 & ~0xff00) + clk_div + SSCR0_SSE;
-	sa11xx_uda1341->samplerate = rate;
-}
-
-/* }}} */
-
-/* {{{ HW init and shutdown */
-
-static void sa11xx_uda1341_audio_init(struct sa11xx_uda1341 *sa11xx_uda1341)
-{
-	unsigned long flags;
-
-	/* Setup DMA stuff */
-	sa11xx_uda1341->s[SNDRV_PCM_STREAM_PLAYBACK].id = "UDA1341 out";
-	sa11xx_uda1341->s[SNDRV_PCM_STREAM_PLAYBACK].stream_id = SNDRV_PCM_STREAM_PLAYBACK;
-	sa11xx_uda1341->s[SNDRV_PCM_STREAM_PLAYBACK].dma_dev = DMA_Ser4SSPWr;
-
-	sa11xx_uda1341->s[SNDRV_PCM_STREAM_CAPTURE].id = "UDA1341 in";
-	sa11xx_uda1341->s[SNDRV_PCM_STREAM_CAPTURE].stream_id = SNDRV_PCM_STREAM_CAPTURE;
-	sa11xx_uda1341->s[SNDRV_PCM_STREAM_CAPTURE].dma_dev = DMA_Ser4SSPRd;
-
-	/* Initialize the UDA1341 internal state */
-       
-	/* Setup the uarts */
-	local_irq_save(flags);
-	GAFR |= (GPIO_SSP_CLK);
-	GPDR &= ~(GPIO_SSP_CLK);
-	Ser4SSCR0 = 0;
-	Ser4SSCR0 = SSCR0_DataSize(16) + SSCR0_TI + SSCR0_SerClkDiv(8);
-	Ser4SSCR1 = SSCR1_SClkIactL + SSCR1_SClk1P + SSCR1_ExtClk;
-	Ser4SSCR0 |= SSCR0_SSE;
-	local_irq_restore(flags);
-
-	/* Enable the audio power */
-
-	clr_sa11xx_uda1341_egpio(IPAQ_EGPIO_CODEC_NRESET);
-	set_sa11xx_uda1341_egpio(IPAQ_EGPIO_AUDIO_ON);
-	set_sa11xx_uda1341_egpio(IPAQ_EGPIO_QMUTE);
- 
-	/* Wait for the UDA1341 to wake up */
-	mdelay(1); //FIXME - was removed by Perex - Why?
-
-	/* Initialize the UDA1341 internal state */
-	l3_open(sa11xx_uda1341->uda1341);
-	
-	/* external clock configuration (after l3_open - regs must be initialized */
-	sa11xx_uda1341_set_samplerate(sa11xx_uda1341, sa11xx_uda1341->samplerate);
-
-	/* Wait for the UDA1341 to wake up */
-	set_sa11xx_uda1341_egpio(IPAQ_EGPIO_CODEC_NRESET);
-	mdelay(1);	
-
-	/* make the left and right channels unswapped (flip the WS latch) */
-	Ser4SSDR = 0;
-
-	clr_sa11xx_uda1341_egpio(IPAQ_EGPIO_QMUTE);
-}
-
-static void sa11xx_uda1341_audio_shutdown(struct sa11xx_uda1341 *sa11xx_uda1341)
-{
-	/* mute on */
-	set_sa11xx_uda1341_egpio(IPAQ_EGPIO_QMUTE);
-	
-	/* disable the audio power and all signals leading to the audio chip */
-	l3_close(sa11xx_uda1341->uda1341);
-	Ser4SSCR0 = 0;
-	clr_sa11xx_uda1341_egpio(IPAQ_EGPIO_CODEC_NRESET);
-
-	/* power off and mute off */
-	/* FIXME - is muting off necesary??? */
-
-	clr_sa11xx_uda1341_egpio(IPAQ_EGPIO_AUDIO_ON);
-	clr_sa11xx_uda1341_egpio(IPAQ_EGPIO_QMUTE);
-}
-
-/* }}} */
-
-/* {{{ DMA staff */
-
-/*
- * these are the address and sizes used to fill the xmit buffer
- * so we can get a clock in record only mode
- */
-#define FORCE_CLOCK_ADDR		(dma_addr_t)FLUSH_BASE_PHYS
-#define FORCE_CLOCK_SIZE		4096 // was 2048
-
-// FIXME Why this value exactly - wrote comment
-#define DMA_BUF_SIZE	8176	/* <= MAX_DMA_SIZE from asm/arch-sa1100/dma.h */
-
-#ifdef HH_VERSION
-
-static int audio_dma_request(struct audio_stream *s, void (*callback)(void *, int))
-{
-	int ret;
-
-	ret = sa1100_request_dma(&s->dmach, s->id, s->dma_dev);
-	if (ret < 0) {
-		printk(KERN_ERR "unable to grab audio dma 0x%x\n", s->dma_dev);
-		return ret;
-	}
-	sa1100_dma_set_callback(s->dmach, callback);
-	return 0;
-}
-
-static inline void audio_dma_free(struct audio_stream *s)
-{
-	sa1100_free_dma(s->dmach);
-	s->dmach = -1;
-}
-
-#else
-
-static int audio_dma_request(struct audio_stream *s, void (*callback)(void *))
-{
-	int ret;
-
-	ret = sa1100_request_dma(s->dma_dev, s->id, callback, s, &s->dma_regs);
-	if (ret < 0)
-		printk(KERN_ERR "unable to grab audio dma 0x%x\n", s->dma_dev);
-	return ret;
-}
-
-static void audio_dma_free(struct audio_stream *s)
-{
-	sa1100_free_dma(s->dma_regs);
-	s->dma_regs = 0;
-}
-
-#endif
-
-static u_int audio_get_dma_pos(struct audio_stream *s)
-{
-	struct snd_pcm_substream *substream = s->stream;
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	unsigned int offset;
-	unsigned long flags;
-	dma_addr_t addr;
-	
-	// this must be called w/ interrupts locked out see dma-sa1100.c in the kernel
-	spin_lock_irqsave(&s->dma_lock, flags);
-#ifdef HH_VERSION	
-	sa1100_dma_get_current(s->dmach, NULL, &addr);
-#else
-	addr = sa1100_get_dma_pos((s)->dma_regs);
-#endif
-	offset = addr - runtime->dma_addr;
-	spin_unlock_irqrestore(&s->dma_lock, flags);
-	
-	offset = bytes_to_frames(runtime,offset);
-	if (offset >= runtime->buffer_size)
-		offset = 0;
-
-	return offset;
-}
-
-/*
- * this stops the dma and clears the dma ptrs
- */
-static void audio_stop_dma(struct audio_stream *s)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&s->dma_lock, flags);	
-	s->active = 0;
-	s->period = 0;
-	/* this stops the dma channel and clears the buffer ptrs */
-#ifdef HH_VERSION
-	sa1100_dma_flush_all(s->dmach);
-#else
-	sa1100_clear_dma(s->dma_regs);	
-#endif
-	spin_unlock_irqrestore(&s->dma_lock, flags);
-}
-
-static void audio_process_dma(struct audio_stream *s)
-{
-	struct snd_pcm_substream *substream = s->stream;
-	struct snd_pcm_runtime *runtime;
-	unsigned int dma_size;		
-	unsigned int offset;
-	int ret;
-                
-	/* we are requested to process synchronization DMA transfer */
-	if (s->tx_spin) {
-		if (snd_BUG_ON(s->stream_id != SNDRV_PCM_STREAM_PLAYBACK))
-			return;
-		/* fill the xmit dma buffers and return */
-#ifdef HH_VERSION
-		sa1100_dma_set_spin(s->dmach, FORCE_CLOCK_ADDR, FORCE_CLOCK_SIZE);
-#else
-		while (1) {
-			ret = sa1100_start_dma(s->dma_regs, FORCE_CLOCK_ADDR, FORCE_CLOCK_SIZE);
-			if (ret)
-				return;   
-		}
-#endif
-		return;
-	}
-
-	/* must be set here - only valid for running streams, not for forced_clock dma fills  */
-	runtime = substream->runtime;
-	while (s->active && s->periods < runtime->periods) {
-		dma_size = frames_to_bytes(runtime, runtime->period_size);
-		if (s->old_offset) {
-			/* a little trick, we need resume from old position */
-			offset = frames_to_bytes(runtime, s->old_offset - 1);
-			s->old_offset = 0;
-			s->periods = 0;
-			s->period = offset / dma_size;
-			offset %= dma_size;
-			dma_size = dma_size - offset;
-			if (!dma_size)
-				continue;		/* special case */
-		} else {
-			offset = dma_size * s->period;
-			snd_BUG_ON(dma_size > DMA_BUF_SIZE);
-		}
-#ifdef HH_VERSION
-		ret = sa1100_dma_queue_buffer(s->dmach, s, runtime->dma_addr + offset, dma_size);
-		if (ret)
-			return; //FIXME
-#else
-		ret = sa1100_start_dma((s)->dma_regs, runtime->dma_addr + offset, dma_size);
-		if (ret) {
-			printk(KERN_ERR "audio_process_dma: cannot queue DMA buffer (%i)\n", ret);
-			return;
-		}
-#endif
-
-		s->period++;
-		s->period %= runtime->periods;
-		s->periods++;
-	}
-}
-
-#ifdef HH_VERSION
-static void audio_dma_callback(void *data, int size)
-#else
-static void audio_dma_callback(void *data)
-#endif
-{
-	struct audio_stream *s = data;
-        
-	/* 
-	 * If we are getting a callback for an active stream then we inform
-	 * the PCM middle layer we've finished a period
-	 */
- 	if (s->active)
-		snd_pcm_period_elapsed(s->stream);
-
-	spin_lock(&s->dma_lock);
-	if (!s->tx_spin && s->periods > 0)
-		s->periods--;
-	audio_process_dma(s);
-	spin_unlock(&s->dma_lock);
-}
-
-/* }}} */
-
-/* {{{ PCM setting */
-
-/* {{{ trigger & timer */
-
-static int snd_sa11xx_uda1341_trigger(struct snd_pcm_substream *substream, int cmd)
-{
-	struct sa11xx_uda1341 *chip = snd_pcm_substream_chip(substream);
-	int stream_id = substream->pstr->stream;
-	struct audio_stream *s = &chip->s[stream_id];
-	struct audio_stream *s1 = &chip->s[stream_id ^ 1];
-	int err = 0;
-
-	/* note local interrupts are already disabled in the midlevel code */
-	spin_lock(&s->dma_lock);
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-		/* now we need to make sure a record only stream has a clock */
-		if (stream_id == SNDRV_PCM_STREAM_CAPTURE && !s1->active) {
-			/* we need to force fill the xmit DMA with zeros */
-			s1->tx_spin = 1;
-			audio_process_dma(s1);
-		}
-		/* this case is when you were recording then you turn on a
-		 * playback stream so we stop (also clears it) the dma first,
-		 * clear the sync flag and then we let it turned on
-		 */		
-		else {
- 			s->tx_spin = 0;
- 		}
-
-		/* requested stream startup */
-		s->active = 1;
-		audio_process_dma(s);
-		break;
-	case SNDRV_PCM_TRIGGER_STOP:
-		/* requested stream shutdown */
-		audio_stop_dma(s);
-		
-		/*
-		 * now we need to make sure a record only stream has a clock
-		 * so if we're stopping a playback with an active capture
-		 * we need to turn the 0 fill dma on for the xmit side
-		 */
-		if (stream_id == SNDRV_PCM_STREAM_PLAYBACK && s1->active) {
-			/* we need to force fill the xmit DMA with zeros */
-			s->tx_spin = 1;
-			audio_process_dma(s);
-		}
-		/*
-		 * we killed a capture only stream, so we should also kill
-		 * the zero fill transmit
-		 */
-		else {
-			if (s1->tx_spin) {
-				s1->tx_spin = 0;
-				audio_stop_dma(s1);
-			}
-		}
-		
-		break;
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-		s->active = 0;
-#ifdef HH_VERSION		
-		sa1100_dma_stop(s->dmach);
-#else
-		//FIXME - DMA API
-#endif		
-		s->old_offset = audio_get_dma_pos(s) + 1;
-#ifdef HH_VERSION		
-		sa1100_dma_flush_all(s->dmach);
-#else
-		//FIXME - DMA API
-#endif		
-		s->periods = 0;
-		break;
-	case SNDRV_PCM_TRIGGER_RESUME:
-		s->active = 1;
-		s->tx_spin = 0;
-		audio_process_dma(s);
-		if (stream_id == SNDRV_PCM_STREAM_CAPTURE && !s1->active) {
-			s1->tx_spin = 1;
-			audio_process_dma(s1);
-		}
-		break;
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-#ifdef HH_VERSION		
-		sa1100_dma_stop(s->dmach);
-#else
-		//FIXME - DMA API
-#endif
-		s->active = 0;
-		if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
-			if (s1->active) {
-				s->tx_spin = 1;
-				s->old_offset = audio_get_dma_pos(s) + 1;
-#ifdef HH_VERSION				
-				sa1100_dma_flush_all(s->dmach);
-#else
-				//FIXME - DMA API
-#endif				
-				audio_process_dma(s);
-			}
-		} else {
-			if (s1->tx_spin) {
-				s1->tx_spin = 0;
-#ifdef HH_VERSION				
-				sa1100_dma_flush_all(s1->dmach);
-#else
-				//FIXME - DMA API
-#endif				
-			}
-		}
-		break;
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		s->active = 1;
-		if (s->old_offset) {
-			s->tx_spin = 0;
-			audio_process_dma(s);
-			break;
-		}
-		if (stream_id == SNDRV_PCM_STREAM_CAPTURE && !s1->active) {
-			s1->tx_spin = 1;
-			audio_process_dma(s1);
-		}
-#ifdef HH_VERSION		
-		sa1100_dma_resume(s->dmach);
-#else
-		//FIXME - DMA API
-#endif
-		break;
-	default:
-		err = -EINVAL;
-		break;
-	}
-	spin_unlock(&s->dma_lock);	
-	return err;
-}
-
-static int snd_sa11xx_uda1341_prepare(struct snd_pcm_substream *substream)
-{
-	struct sa11xx_uda1341 *chip = snd_pcm_substream_chip(substream);
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct audio_stream *s = &chip->s[substream->pstr->stream];
-        
-	/* set requested samplerate */
-	sa11xx_uda1341_set_samplerate(chip, runtime->rate);
-
-	/* set requestd format when available */
-	/* set FMT here !!! FIXME */
-
-	s->period = 0;
-	s->periods = 0;
-        
-	return 0;
-}
-
-static snd_pcm_uframes_t snd_sa11xx_uda1341_pointer(struct snd_pcm_substream *substream)
-{
-	struct sa11xx_uda1341 *chip = snd_pcm_substream_chip(substream);
-	return audio_get_dma_pos(&chip->s[substream->pstr->stream]);
-}
-
-/* }}} */
-
-static struct snd_pcm_hardware snd_sa11xx_uda1341_capture =
-{
-	.info			= (SNDRV_PCM_INFO_INTERLEAVED |
-				   SNDRV_PCM_INFO_BLOCK_TRANSFER |
-				   SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
-				   SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
-	.formats		= SNDRV_PCM_FMTBIT_S16_LE,
-	.rates			= (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
-				   SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 |\
-				   SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
-				   SNDRV_PCM_RATE_KNOT),
-	.rate_min		= 8000,
-	.rate_max		= 48000,
-	.channels_min		= 2,
-	.channels_max		= 2,
-	.buffer_bytes_max	= 64*1024,
-	.period_bytes_min	= 64,
-	.period_bytes_max	= DMA_BUF_SIZE,
-	.periods_min		= 2,
-	.periods_max		= 255,
-	.fifo_size		= 0,
-};
-
-static struct snd_pcm_hardware snd_sa11xx_uda1341_playback =
-{
-	.info			= (SNDRV_PCM_INFO_INTERLEAVED |
-				   SNDRV_PCM_INFO_BLOCK_TRANSFER |
-				   SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
-				   SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
-	.formats		= SNDRV_PCM_FMTBIT_S16_LE,
-	.rates			= (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
-                                   SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 |\
-				   SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
-				   SNDRV_PCM_RATE_KNOT),
-	.rate_min		= 8000,
-	.rate_max		= 48000,
-	.channels_min		= 2,
-	.channels_max		= 2,
-	.buffer_bytes_max	= 64*1024,
-	.period_bytes_min	= 64,
-	.period_bytes_max	= DMA_BUF_SIZE,
-	.periods_min		= 2,
-	.periods_max		= 255,
-	.fifo_size		= 0,
-};
-
-static int snd_card_sa11xx_uda1341_open(struct snd_pcm_substream *substream)
-{
-	struct sa11xx_uda1341 *chip = snd_pcm_substream_chip(substream);
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	int stream_id = substream->pstr->stream;
-	int err;
-
-	chip->s[stream_id].stream = substream;
-
-	if (stream_id == SNDRV_PCM_STREAM_PLAYBACK)
-		runtime->hw = snd_sa11xx_uda1341_playback;
-	else
-		runtime->hw = snd_sa11xx_uda1341_capture;
-	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
-		return err;
-	if ((err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates)) < 0)
-		return err;
-        
-	return 0;
-}
-
-static int snd_card_sa11xx_uda1341_close(struct snd_pcm_substream *substream)
-{
-	struct sa11xx_uda1341 *chip = snd_pcm_substream_chip(substream);
-
-	chip->s[substream->pstr->stream].stream = NULL;
-	return 0;
-}
-
-/* {{{ HW params & free */
-
-static int snd_sa11xx_uda1341_hw_params(struct snd_pcm_substream *substream,
-					struct snd_pcm_hw_params *hw_params)
-{
-        
-	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-}
-
-static int snd_sa11xx_uda1341_hw_free(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_lib_free_pages(substream);
-}
-
-/* }}} */
-
-static struct snd_pcm_ops snd_card_sa11xx_uda1341_playback_ops = {
-	.open			= snd_card_sa11xx_uda1341_open,
-	.close			= snd_card_sa11xx_uda1341_close,
-	.ioctl			= snd_pcm_lib_ioctl,
-	.hw_params	        = snd_sa11xx_uda1341_hw_params,
-	.hw_free	        = snd_sa11xx_uda1341_hw_free,
-	.prepare		= snd_sa11xx_uda1341_prepare,
-	.trigger		= snd_sa11xx_uda1341_trigger,
-	.pointer		= snd_sa11xx_uda1341_pointer,
-};
-
-static struct snd_pcm_ops snd_card_sa11xx_uda1341_capture_ops = {
-	.open			= snd_card_sa11xx_uda1341_open,
-	.close			= snd_card_sa11xx_uda1341_close,
-	.ioctl			= snd_pcm_lib_ioctl,
-	.hw_params	        = snd_sa11xx_uda1341_hw_params,
-	.hw_free	        = snd_sa11xx_uda1341_hw_free,
-	.prepare		= snd_sa11xx_uda1341_prepare,
-	.trigger		= snd_sa11xx_uda1341_trigger,
-	.pointer		= snd_sa11xx_uda1341_pointer,
-};
-
-static int __init snd_card_sa11xx_uda1341_pcm(struct sa11xx_uda1341 *sa11xx_uda1341, int device)
-{
-	struct snd_pcm *pcm;
-	int err;
-
-	if ((err = snd_pcm_new(sa11xx_uda1341->card, "UDA1341 PCM", device, 1, 1, &pcm)) < 0)
-		return err;
-
-	/*
-	 * this sets up our initial buffers and sets the dma_type to isa.
-	 * isa works but I'm not sure why (or if) it's the right choice
-	 * this may be too large, trying it for now
-	 */
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 
-					      snd_dma_isa_data(),
-					      64*1024, 64*1024);
-
-	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_card_sa11xx_uda1341_playback_ops);
-	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_sa11xx_uda1341_capture_ops);
-	pcm->private_data = sa11xx_uda1341;
-	pcm->info_flags = 0;
-	strcpy(pcm->name, "UDA1341 PCM");
-
-	sa11xx_uda1341_audio_init(sa11xx_uda1341);
-
-	/* setup DMA controller */
-	audio_dma_request(&sa11xx_uda1341->s[SNDRV_PCM_STREAM_PLAYBACK], audio_dma_callback);
-	audio_dma_request(&sa11xx_uda1341->s[SNDRV_PCM_STREAM_CAPTURE], audio_dma_callback);
-
-	sa11xx_uda1341->pcm = pcm;
-
-	return 0;
-}
-
-/* }}} */
-
-/* {{{ module init & exit */
-
-#ifdef CONFIG_PM
-
-static int snd_sa11xx_uda1341_suspend(struct platform_device *devptr,
-				      pm_message_t state)
-{
-	struct snd_card *card = platform_get_drvdata(devptr);
-	struct sa11xx_uda1341 *chip = card->private_data;
-
-	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
-#ifdef HH_VERSION
-	sa1100_dma_sleep(chip->s[SNDRV_PCM_STREAM_PLAYBACK].dmach);
-	sa1100_dma_sleep(chip->s[SNDRV_PCM_STREAM_CAPTURE].dmach);
-#else
-	//FIXME
-#endif
-	l3_command(chip->uda1341, CMD_SUSPEND, NULL);
-	sa11xx_uda1341_audio_shutdown(chip);
-
-	return 0;
-}
-
-static int snd_sa11xx_uda1341_resume(struct platform_device *devptr)
-{
-	struct snd_card *card = platform_get_drvdata(devptr);
-	struct sa11xx_uda1341 *chip = card->private_data;
-
-	sa11xx_uda1341_audio_init(chip);
-	l3_command(chip->uda1341, CMD_RESUME, NULL);
-#ifdef HH_VERSION	
-	sa1100_dma_wakeup(chip->s[SNDRV_PCM_STREAM_PLAYBACK].dmach);
-	sa1100_dma_wakeup(chip->s[SNDRV_PCM_STREAM_CAPTURE].dmach);
-#else
-	//FIXME
-#endif
-	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
-	return 0;
-}
-#endif /* COMFIG_PM */
-
-void snd_sa11xx_uda1341_free(struct snd_card *card)
-{
-	struct sa11xx_uda1341 *chip = card->private_data;
-
-	audio_dma_free(&chip->s[SNDRV_PCM_STREAM_PLAYBACK]);
-	audio_dma_free(&chip->s[SNDRV_PCM_STREAM_CAPTURE]);
-}
-
-static int __devinit sa11xx_uda1341_probe(struct platform_device *devptr)
-{
-	int err;
-	struct snd_card *card;
-	struct sa11xx_uda1341 *chip;
-
-	/* register the soundcard */
-	err = snd_card_create(-1, id, THIS_MODULE,
-			      sizeof(struct sa11xx_uda1341), &card);
-	if (err < 0)
-		return err;
-
-	chip = card->private_data;
-	spin_lock_init(&chip->s[0].dma_lock);
-	spin_lock_init(&chip->s[1].dma_lock);
-
-	card->private_free = snd_sa11xx_uda1341_free;
-	chip->card = card;
-	chip->samplerate = AUDIO_RATE_DEFAULT;
-
-	// mixer
-	if ((err = snd_chip_uda1341_mixer_new(card, &chip->uda1341)))
-		goto nodev;
-
-	// PCM
-	if ((err = snd_card_sa11xx_uda1341_pcm(chip, 0)) < 0)
-		goto nodev;
-        
-	strcpy(card->driver, "UDA1341");
-	strcpy(card->shortname, "H3600 UDA1341TS");
-	sprintf(card->longname, "Compaq iPAQ H3600 with Philips UDA1341TS");
-        
-	snd_card_set_dev(card, &devptr->dev);
-
-	if ((err = snd_card_register(card)) == 0) {
-		printk(KERN_INFO "iPAQ audio support initialized\n");
-		platform_set_drvdata(devptr, card);
-		return 0;
-	}
-        
- nodev:
-	snd_card_free(card);
-	return err;
-}
-
-static int __devexit sa11xx_uda1341_remove(struct platform_device *devptr)
-{
-	snd_card_free(platform_get_drvdata(devptr));
-	platform_set_drvdata(devptr, NULL);
-	return 0;
-}
-
-#define SA11XX_UDA1341_DRIVER	"sa11xx_uda1341"
-
-static struct platform_driver sa11xx_uda1341_driver = {
-	.probe		= sa11xx_uda1341_probe,
-	.remove		= __devexit_p(sa11xx_uda1341_remove),
-#ifdef CONFIG_PM
-	.suspend	= snd_sa11xx_uda1341_suspend,
-	.resume		= snd_sa11xx_uda1341_resume,
-#endif
-	.driver		= {
-		.name	= SA11XX_UDA1341_DRIVER,
-	},
-};
-
-static int __init sa11xx_uda1341_init(void)
-{
-	int err;
-
-	if (!machine_is_h3xxx())
-		return -ENODEV;
-	if ((err = platform_driver_register(&sa11xx_uda1341_driver)) < 0)
-		return err;
-	device = platform_device_register_simple(SA11XX_UDA1341_DRIVER, -1, NULL, 0);
-	if (!IS_ERR(device)) {
-		if (platform_get_drvdata(device))
-			return 0;
-		platform_device_unregister(device);
-		err = -ENODEV;
-	} else
-		err = PTR_ERR(device);
-	platform_driver_unregister(&sa11xx_uda1341_driver);
-	return err;
-}
-
-static void __exit sa11xx_uda1341_exit(void)
-{
-	platform_device_unregister(device);
-	platform_driver_unregister(&sa11xx_uda1341_driver);
-}
-
-module_init(sa11xx_uda1341_init);
-module_exit(sa11xx_uda1341_exit);
-
-/* }}} */
-
-/*
- * Local variables:
- * indent-tabs-mode: t
- * End:
- */
diff --git a/sound/i2c/Makefile b/sound/i2c/Makefile
index 37970666a453..36879bf88700 100644
--- a/sound/i2c/Makefile
+++ b/sound/i2c/Makefile
@@ -7,8 +7,6 @@ snd-i2c-objs := i2c.o
 snd-cs8427-objs := cs8427.o
 snd-tea6330t-objs := tea6330t.o
 
-obj-$(CONFIG_L3) += l3/
-
 obj-$(CONFIG_SND) += other/
 
 # Toplevel Module Dependency
diff --git a/sound/i2c/l3/Makefile b/sound/i2c/l3/Makefile
deleted file mode 100644
index 49455b8dcc04..000000000000
--- a/sound/i2c/l3/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for ALSA
-#
-
-snd-uda1341-objs := uda1341.o
-
-# Module Dependency
-obj-$(CONFIG_SND_SA11XX_UDA1341) += snd-uda1341.o
diff --git a/sound/i2c/l3/uda1341.c b/sound/i2c/l3/uda1341.c
deleted file mode 100644
index 9840eb43648d..000000000000
--- a/sound/i2c/l3/uda1341.c
+++ /dev/null
@@ -1,935 +0,0 @@
-/*
- * Philips UDA1341 mixer device driver
- * Copyright (c) 2002 Tomas Kasparek <tomas.kasparek@seznam.cz>
- *
- * Portions are Copyright (C) 2000 Lernout & Hauspie Speech Products, N.V.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License.
- *
- * History:
- *
- * 2002-03-13   Tomas Kasparek  initial release - based on uda1341.c from OSS
- * 2002-03-28   Tomas Kasparek  basic mixer is working (volume, bass, treble)
- * 2002-03-30   Tomas Kasparek  proc filesystem support, complete mixer and DSP
- *                              features support
- * 2002-04-12	Tomas Kasparek	proc interface update, code cleanup
- * 2002-05-12   Tomas Kasparek  another code cleanup
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/ioctl.h>
-
-#include <asm/uaccess.h>
-
-#include <sound/core.h>
-#include <sound/control.h>
-#include <sound/initval.h>
-#include <sound/info.h>
-
-#include <linux/l3/l3.h>
-
-#include <sound/uda1341.h>
-
-/* {{{ HW regs definition */
-
-#define STAT0                   0x00
-#define STAT1			0x80
-#define STAT_MASK               0x80
-
-#define DATA0_0			0x00
-#define DATA0_1			0x40
-#define DATA0_2			0x80
-#define DATA_MASK               0xc0
-
-#define IS_DATA0(x)     ((x) >= data0_0 && (x) <= data0_2)
-#define IS_DATA1(x)     ((x) == data1)
-#define IS_STATUS(x)    ((x) == stat0 || (x) == stat1)
-#define IS_EXTEND(x)   ((x) >= ext0 && (x) <= ext6)
-
-/* }}} */
-
-
-static const char *peak_names[] = {
-	"before",
-	"after",
-};
-
-static const char *filter_names[] = {
-	"flat",
-	"min",
-	"min",
-	"max",
-};
-
-static const char *mixer_names[] = {
-	"double differential",
-	"input channel 1 (line in)",
-	"input channel 2 (microphone)",
-	"digital mixer",
-};
-
-static const char *deemp_names[] = {
-	"none",
-	"32 kHz",
-	"44.1 kHz",
-	"48 kHz",        
-};
-
-enum uda1341_regs_names {
-	stat0,
-	stat1,
-	data0_0,
-	data0_1,
-	data0_2,
-	data1,
-	ext0,
-	ext1,
-	ext2,
-	empty,
-	ext4,
-	ext5,
-	ext6,
-	uda1341_reg_last,
-};
-
-static const char *uda1341_reg_names[] = {
-	"stat 0 ",
-	"stat 1 ",
-	"data 00",
-	"data 01",
-	"data 02",
-	"data 1 ",
-	"ext 0",
-	"ext 1",
-	"ext 2",
-	"empty",
-	"ext 4",
-	"ext 5",
-	"ext 6",
-};
-
-static const int uda1341_enum_items[] = {
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	2, //peak - before/after
-	4, //deemp - none/32/44.1/48
-	0,
-	4, //filter - flat/min/min/max
-	0, 0, 0,
-	4, //mixer - differ/line/mic/mixer
-	0, 0, 0, 0, 0,
-};
-
-static const char ** uda1341_enum_names[] = {
-	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-	peak_names, //peak - before/after
-	deemp_names, //deemp - none/32/44.1/48
-	NULL,
-	filter_names, //filter - flat/min/min/max
-	NULL, NULL, NULL,
-	mixer_names, //mixer - differ/line/mic/mixer
-	NULL, NULL, NULL, NULL, NULL,
-};
-
-typedef int uda1341_cfg[CMD_LAST];
-
-struct uda1341 {
-	int (*write) (struct l3_client *uda1341, unsigned short reg, unsigned short val);
-	int (*read) (struct l3_client *uda1341, unsigned short reg);        
-	unsigned char regs[uda1341_reg_last];
-	int active;
-	spinlock_t reg_lock;
-	struct snd_card *card;
-	uda1341_cfg cfg;
-#ifdef CONFIG_PM
-	unsigned char suspend_regs[uda1341_reg_last];
-	uda1341_cfg suspend_cfg;
-#endif
-};
-
-/* transfer 8bit integer into string with binary representation */
-static void int2str_bin8(uint8_t val, char *buf)
-{
-	const int size = sizeof(val) * 8;
-	int i;
-
-	for (i= 0; i < size; i++){
-		*(buf++) = (val >> (size - 1)) ? '1' : '0';
-		val <<= 1;
-	}
-	*buf = '\0'; //end the string with zero
-}
-
-/* {{{ HW manipulation routines */
-
-static int snd_uda1341_codec_write(struct l3_client *clnt, unsigned short reg, unsigned short val)
-{
-	struct uda1341 *uda = clnt->driver_data;
-	unsigned char buf[2] = { 0xc0, 0xe0 }; // for EXT addressing
-	int err = 0;
-
-	uda->regs[reg] = val;
-
-	if (uda->active) {
-		if (IS_DATA0(reg)) {
-			err = l3_write(clnt, UDA1341_DATA0, (const unsigned char *)&val, 1);
-		} else if (IS_DATA1(reg)) {
-			err = l3_write(clnt, UDA1341_DATA1, (const unsigned char *)&val, 1);
-		} else if (IS_STATUS(reg)) {
-			err = l3_write(clnt, UDA1341_STATUS, (const unsigned char *)&val, 1);
-		} else if (IS_EXTEND(reg)) {
-			buf[0] |= (reg - ext0) & 0x7;   //EXT address
-			buf[1] |= val;                  //EXT data
-			err = l3_write(clnt, UDA1341_DATA0, (const unsigned char *)buf, 2);
-		}
-	} else
-		printk(KERN_ERR "UDA1341 codec not active!\n");
-	return err;
-}
-
-static int snd_uda1341_codec_read(struct l3_client *clnt, unsigned short reg)
-{
-	unsigned char val;
-	int err;
-
-	err = l3_read(clnt, reg, &val, 1);
-	if (err == 1)
-		// use just 6bits - the rest is address of the reg
-		return val & 63;
-	return err < 0 ? err : -EIO;
-}
-
-static inline int snd_uda1341_valid_reg(struct l3_client *clnt, unsigned short reg)
-{
-	return reg < uda1341_reg_last;
-}
-
-static int snd_uda1341_update_bits(struct l3_client *clnt, unsigned short reg,
-				   unsigned short mask, unsigned short shift,
-				   unsigned short value, int flush)
-{
-	int change;
-	unsigned short old, new;
-	struct uda1341 *uda = clnt->driver_data;
-
-#if 0
-	printk(KERN_DEBUG "update_bits: reg: %s mask: %d shift: %d val: %d\n",
-	       uda1341_reg_names[reg], mask, shift, value);
-#endif
-        
-	if (!snd_uda1341_valid_reg(clnt, reg))
-		return -EINVAL;
-	spin_lock(&uda->reg_lock);
-	old = uda->regs[reg];
-	new = (old & ~(mask << shift)) | (value << shift);
-	change = old != new;
-	if (change) {
-		if (flush) uda->write(clnt, reg, new);
-		uda->regs[reg] = new;
-	}
-	spin_unlock(&uda->reg_lock);
-	return change;
-}
-
-static int snd_uda1341_cfg_write(struct l3_client *clnt, unsigned short what,
-				 unsigned short value, int flush)
-{
-	struct uda1341 *uda = clnt->driver_data;
-	int ret = 0;
-#ifdef CONFIG_PM
-	int reg;
-#endif
-
-#if 0
-	printk(KERN_DEBUG "cfg_write what: %d value: %d\n", what, value);
-#endif
-
-	uda->cfg[what] = value;
-        
-	switch(what) {
-	case CMD_RESET:
-		ret = snd_uda1341_update_bits(clnt, data0_2, 1, 2, 1, flush);	// MUTE
-		ret = snd_uda1341_update_bits(clnt, stat0, 1, 6, 1, flush);	// RESET
-		ret = snd_uda1341_update_bits(clnt, stat0, 1, 6, 0, flush);	// RESTORE
-		uda->cfg[CMD_RESET]=0;
-		break;
-	case CMD_FS:
-		ret = snd_uda1341_update_bits(clnt, stat0, 3, 4, value, flush);
-		break;
-	case CMD_FORMAT:
-		ret = snd_uda1341_update_bits(clnt, stat0, 7, 1, value, flush);
-		break;
-	case CMD_OGAIN:
-		ret = snd_uda1341_update_bits(clnt, stat1, 1, 6, value, flush);
-		break;
-	case CMD_IGAIN:
-		ret = snd_uda1341_update_bits(clnt, stat1, 1, 5, value, flush);
-		break;
-	case CMD_DAC:
-		ret = snd_uda1341_update_bits(clnt, stat1, 1, 0, value, flush);
-		break;
-	case CMD_ADC:
-		ret = snd_uda1341_update_bits(clnt, stat1, 1, 1, value, flush);
-		break;
-	case CMD_VOLUME:
-		ret = snd_uda1341_update_bits(clnt, data0_0, 63, 0, value, flush);
-		break;
-	case CMD_BASS:
-		ret = snd_uda1341_update_bits(clnt, data0_1, 15, 2, value, flush);
-		break;
-	case CMD_TREBBLE:
-		ret = snd_uda1341_update_bits(clnt, data0_1, 3, 0, value, flush);
-		break;
-	case CMD_PEAK:
-		ret = snd_uda1341_update_bits(clnt, data0_2, 1, 5, value, flush);
-		break;
-	case CMD_DEEMP:
-		ret = snd_uda1341_update_bits(clnt, data0_2, 3, 3, value, flush);
-		break;
-	case CMD_MUTE:
-		ret = snd_uda1341_update_bits(clnt, data0_2, 1, 2, value, flush);
-		break;
-	case CMD_FILTER:
-		ret = snd_uda1341_update_bits(clnt, data0_2, 3, 0, value, flush);
-		break;
-	case CMD_CH1:
-		ret = snd_uda1341_update_bits(clnt, ext0, 31, 0, value, flush);
-		break;
-	case CMD_CH2:
-		ret = snd_uda1341_update_bits(clnt, ext1, 31, 0, value, flush);
-		break;
-	case CMD_MIC:
-		ret = snd_uda1341_update_bits(clnt, ext2, 7, 2, value, flush);
-		break;
-	case CMD_MIXER:
-		ret = snd_uda1341_update_bits(clnt, ext2, 3, 0, value, flush);
-		break;
-	case CMD_AGC:
-		ret = snd_uda1341_update_bits(clnt, ext4, 1, 4, value, flush);
-		break;
-	case CMD_IG:
-		ret = snd_uda1341_update_bits(clnt, ext4, 3, 0, value & 0x3, flush);
-		ret = snd_uda1341_update_bits(clnt, ext5, 31, 0, value >> 2, flush);
-		break;
-	case CMD_AGC_TIME:
-		ret = snd_uda1341_update_bits(clnt, ext6, 7, 2, value, flush);
-		break;
-	case CMD_AGC_LEVEL:
-		ret = snd_uda1341_update_bits(clnt, ext6, 3, 0, value, flush);
-		break;
-#ifdef CONFIG_PM		
-	case CMD_SUSPEND:
-		for (reg = stat0; reg < uda1341_reg_last; reg++)
-			uda->suspend_regs[reg] = uda->regs[reg];
-		for (reg = 0; reg < CMD_LAST; reg++)
-			uda->suspend_cfg[reg] = uda->cfg[reg];
-		break;
-	case CMD_RESUME:
-		for (reg = stat0; reg < uda1341_reg_last; reg++)
-			snd_uda1341_codec_write(clnt, reg, uda->suspend_regs[reg]);
-		for (reg = 0; reg < CMD_LAST; reg++)
-			uda->cfg[reg] = uda->suspend_cfg[reg];
-		break;
-#endif
-	default:
-		ret = -EINVAL;
-		break;
-	}
-                
-	if (!uda->active)
-		printk(KERN_ERR "UDA1341 codec not active!\n");                
-	return ret;
-}
-
-/* }}} */
-
-/* {{{ Proc interface */
-#ifdef CONFIG_PROC_FS
-
-static const char *format_names[] = {
-	"I2S-bus",
-	"LSB 16bits",
-	"LSB 18bits",
-	"LSB 20bits",
-	"MSB",
-	"in LSB 16bits/out MSB",
-	"in LSB 18bits/out MSB",
-	"in LSB 20bits/out MSB",        
-};
-
-static const char *fs_names[] = {
-	"512*fs",
-	"384*fs",
-	"256*fs",
-	"Unused - bad value!",
-};
-
-static const char* bass_values[][16] = {
-	{"0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB",
-	 "0 dB", "0 dB", "0 dB", "0 dB", "undefined", }, //flat
-	{"0 dB", "2 dB", "4 dB", "6 dB", "8 dB", "10 dB", "12 dB", "14 dB", "16 dB", "18 dB", "18 dB",
-	 "18 dB", "18 dB", "18 dB", "18 dB", "undefined",}, // min
-	{"0 dB", "2 dB", "4 dB", "6 dB", "8 dB", "10 dB", "12 dB", "14 dB", "16 dB", "18 dB", "18 dB",
-	 "18 dB", "18 dB", "18 dB", "18 dB", "undefined",}, // min
-	{"0 dB", "2 dB", "4 dB", "6 dB", "8 dB", "10 dB", "12 dB", "14 dB", "16 dB", "18 dB", "20 dB",
-	 "22 dB", "24 dB", "24 dB", "24 dB", "undefined",}, // max
-};
-
-static const char *mic_sens_value[] = {
-	"-3 dB", "0 dB", "3 dB", "9 dB", "15 dB", "21 dB", "27 dB", "not used",
-};
-
-static const unsigned short AGC_atime[] = {
-	11, 16, 11, 16, 21, 11, 16, 21,
-};
-
-static const unsigned short AGC_dtime[] = {
-	100, 100, 200, 200, 200, 400, 400, 400,
-};
-
-static const char *AGC_level[] = {
-	"-9.0", "-11.5", "-15.0", "-17.5",
-};
-
-static const char *ig_small_value[] = {
-	"-3.0", "-2.5", "-2.0", "-1.5", "-1.0", "-0.5",
-};
-
-/*
- * this was computed as peak_value[i] = pow((63-i)*1.42,1.013)
- *
- * UDA1341 datasheet on page 21: Peak value (dB) = (Peak level - 63.5)*5*log2
- * There is an table with these values [level]=value: [3]=-90.31, [7]=-84.29
- * [61]=-2.78, [62] = -1.48, [63] = 0.0
- * I tried to compute it, but using but even using logarithm with base either 10 or 2
- * i was'n able to get values in the table from the formula. So I constructed another
- * formula (see above) to interpolate the values as good as possible. If there is some
- * mistake, please contact me on tomas.kasparek@seznam.cz. Thanks.
- * UDA1341TS datasheet is available at:
- *   http://www-us9.semiconductors.com/acrobat/datasheets/UDA1341TS_3.pdf 
- */
-static const char *peak_value[] = {
-	"-INF dB", "N.A.", "N.A", "90.31 dB", "N.A.", "N.A.", "N.A.", "-84.29 dB",
-	"-82.65 dB", "-81.13 dB", "-79.61 dB", "-78.09 dB", "-76.57 dB", "-75.05 dB", "-73.53 dB",
-	"-72.01 dB", "-70.49 dB", "-68.97 dB", "-67.45 dB", "-65.93 dB", "-64.41 dB", "-62.90 dB",
-	"-61.38 dB", "-59.86 dB", "-58.35 dB", "-56.83 dB", "-55.32 dB", "-53.80 dB", "-52.29 dB",
-	"-50.78 dB", "-49.26 dB", "-47.75 dB", "-46.24 dB", "-44.73 dB", "-43.22 dB", "-41.71 dB",
-	"-40.20 dB", "-38.69 dB", "-37.19 dB", "-35.68 dB", "-34.17 dB", "-32.67 dB", "-31.17 dB",
-	"-29.66 dB", "-28.16 dB", "-26.66 dB", "-25.16 dB", "-23.66 dB", "-22.16 dB", "-20.67 dB",
-	"-19.17 dB", "-17.68 dB", "-16.19 dB", "-14.70 dB", "-13.21 dB", "-11.72 dB", "-10.24 dB",
-	"-8.76 dB", "-7.28 dB", "-5.81 dB", "-4.34 dB", "-2.88 dB", "-1.43 dB", "0.00 dB",
-};
-
-static void snd_uda1341_proc_read(struct snd_info_entry *entry, 
-				  struct snd_info_buffer *buffer)
-{
-	struct l3_client *clnt = entry->private_data;
-	struct uda1341 *uda = clnt->driver_data;
-	int peak;
-
-	peak = snd_uda1341_codec_read(clnt, UDA1341_DATA1);
-	if (peak < 0)
-		peak = 0;
-	
-	snd_iprintf(buffer, "%s\n\n", uda->card->longname);
-
-	// for information about computed values see UDA1341TS datasheet pages 15 - 21
-	snd_iprintf(buffer, "DAC power           : %s\n", uda->cfg[CMD_DAC] ? "on" : "off");
-	snd_iprintf(buffer, "ADC power           : %s\n", uda->cfg[CMD_ADC] ? "on" : "off");
- 	snd_iprintf(buffer, "Clock frequency     : %s\n", fs_names[uda->cfg[CMD_FS]]);
-	snd_iprintf(buffer, "Data format         : %s\n\n", format_names[uda->cfg[CMD_FORMAT]]);
-
-	snd_iprintf(buffer, "Filter mode         : %s\n", filter_names[uda->cfg[CMD_FILTER]]);
-	snd_iprintf(buffer, "Mixer mode          : %s\n", mixer_names[uda->cfg[CMD_MIXER]]);
-	snd_iprintf(buffer, "De-emphasis         : %s\n", deemp_names[uda->cfg[CMD_DEEMP]]);	
-	snd_iprintf(buffer, "Peak detection pos. : %s\n", uda->cfg[CMD_PEAK] ? "after" : "before");
-	snd_iprintf(buffer, "Peak value          : %s\n\n", peak_value[peak]);		
-	
-	snd_iprintf(buffer, "Automatic Gain Ctrl : %s\n", uda->cfg[CMD_AGC] ? "on" : "off");
-	snd_iprintf(buffer, "AGC attack time     : %d ms\n", AGC_atime[uda->cfg[CMD_AGC_TIME]]);
-	snd_iprintf(buffer, "AGC decay time      : %d ms\n", AGC_dtime[uda->cfg[CMD_AGC_TIME]]);
-	snd_iprintf(buffer, "AGC output level    : %s dB\n\n", AGC_level[uda->cfg[CMD_AGC_LEVEL]]);
-
-	snd_iprintf(buffer, "Mute                : %s\n", uda->cfg[CMD_MUTE] ? "on" : "off");
-
-	if (uda->cfg[CMD_VOLUME] == 0)
-		snd_iprintf(buffer, "Volume              : 0 dB\n");
-	else if (uda->cfg[CMD_VOLUME] < 62)
-		snd_iprintf(buffer, "Volume              : %d dB\n", -1*uda->cfg[CMD_VOLUME] +1);
-	else
-		snd_iprintf(buffer, "Volume              : -INF dB\n");
-	snd_iprintf(buffer, "Bass                : %s\n", bass_values[uda->cfg[CMD_FILTER]][uda->cfg[CMD_BASS]]);
-	snd_iprintf(buffer, "Trebble             : %d dB\n", uda->cfg[CMD_FILTER] ? 2*uda->cfg[CMD_TREBBLE] : 0);
-	snd_iprintf(buffer, "Input Gain (6dB)    : %s\n", uda->cfg[CMD_IGAIN] ? "on" : "off");
-	snd_iprintf(buffer, "Output Gain (6dB)   : %s\n", uda->cfg[CMD_OGAIN] ? "on" : "off");
-	snd_iprintf(buffer, "Mic sensitivity     : %s\n", mic_sens_value[uda->cfg[CMD_MIC]]);
-
-	
-	if(uda->cfg[CMD_CH1] < 31)
-		snd_iprintf(buffer, "Mixer gain channel 1: -%d.%c dB\n",
-			    ((uda->cfg[CMD_CH1] >> 1) * 3) + (uda->cfg[CMD_CH1] & 1),
-			    uda->cfg[CMD_CH1] & 1 ? '5' : '0');
-	else
-		snd_iprintf(buffer, "Mixer gain channel 1: -INF dB\n");
-	if(uda->cfg[CMD_CH2] < 31)
-		snd_iprintf(buffer, "Mixer gain channel 2: -%d.%c dB\n",
-			    ((uda->cfg[CMD_CH2] >> 1) * 3) + (uda->cfg[CMD_CH2] & 1),
-			    uda->cfg[CMD_CH2] & 1 ? '5' : '0');
-	else
-		snd_iprintf(buffer, "Mixer gain channel 2: -INF dB\n");
-
-	if(uda->cfg[CMD_IG] > 5)
-		snd_iprintf(buffer, "Input Amp. Gain ch 2: %d.%c dB\n",
-			    (uda->cfg[CMD_IG] >> 1) -3, uda->cfg[CMD_IG] & 1 ? '5' : '0');
-	else
-		snd_iprintf(buffer, "Input Amp. Gain ch 2: %s dB\n",  ig_small_value[uda->cfg[CMD_IG]]);
-}
-
-static void snd_uda1341_proc_regs_read(struct snd_info_entry *entry, 
-				       struct snd_info_buffer *buffer)
-{
-	struct l3_client *clnt = entry->private_data;
-	struct uda1341 *uda = clnt->driver_data;		
-	int reg;
-	char buf[12];
-
-	for (reg = 0; reg < uda1341_reg_last; reg ++) {
-		if (reg == empty)
-			continue;
-		int2str_bin8(uda->regs[reg], buf);
-		snd_iprintf(buffer, "%s = %s\n", uda1341_reg_names[reg], buf);
-	}
-
-	int2str_bin8(snd_uda1341_codec_read(clnt, UDA1341_DATA1), buf);
-	snd_iprintf(buffer, "DATA1 = %s\n", buf);
-}
-#endif /* CONFIG_PROC_FS */
-
-static void __devinit snd_uda1341_proc_init(struct snd_card *card, struct l3_client *clnt)
-{
-	struct snd_info_entry *entry;
-
-	if (! snd_card_proc_new(card, "uda1341", &entry))
-		snd_info_set_text_ops(entry, clnt, snd_uda1341_proc_read);
-	if (! snd_card_proc_new(card, "uda1341-regs", &entry))
-		snd_info_set_text_ops(entry, clnt, snd_uda1341_proc_regs_read);
-}
-
-/* }}} */
-
-/* {{{ Mixer controls setting */
-
-/* {{{ UDA1341 single functions */
-
-#define UDA1341_SINGLE(xname, where, reg, shift, mask, invert) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_uda1341_info_single, \
-  .get = snd_uda1341_get_single, .put = snd_uda1341_put_single, \
-  .private_value = where | (reg << 5) | (shift << 9) | (mask << 12) | (invert << 18) \
-}
-
-static int snd_uda1341_info_single(struct snd_kcontrol *kcontrol,
-				   struct snd_ctl_elem_info *uinfo)
-{
-	int mask = (kcontrol->private_value >> 12) & 63;
-
-	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
-	uinfo->count = 1;
-	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = mask;
-	return 0;
-}
-
-static int snd_uda1341_get_single(struct snd_kcontrol *kcontrol,
-				  struct snd_ctl_elem_value *ucontrol)
-{
-	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
-	struct uda1341 *uda = clnt->driver_data;
-	int where = kcontrol->private_value & 31;        
-	int mask = (kcontrol->private_value >> 12) & 63;
-	int invert = (kcontrol->private_value >> 18) & 1;
-        
-	ucontrol->value.integer.value[0] = uda->cfg[where];
-	if (invert)
-		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
-
-	return 0;
-}
-
-static int snd_uda1341_put_single(struct snd_kcontrol *kcontrol,
-				  struct snd_ctl_elem_value *ucontrol)
-{
-	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
-	struct uda1341 *uda = clnt->driver_data;
-	int where = kcontrol->private_value & 31;        
-	int reg = (kcontrol->private_value >> 5) & 15;
-	int shift = (kcontrol->private_value >> 9) & 7;
-	int mask = (kcontrol->private_value >> 12) & 63;
-	int invert = (kcontrol->private_value >> 18) & 1;
-	unsigned short val;
-
-	val = (ucontrol->value.integer.value[0] & mask);
-	if (invert)
-		val = mask - val;
-
-	uda->cfg[where] = val;
-	return snd_uda1341_update_bits(clnt, reg, mask, shift, val, FLUSH);
-}
-
-/* }}} */
-
-/* {{{ UDA1341 enum functions */
-
-#define UDA1341_ENUM(xname, where, reg, shift, mask, invert) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_uda1341_info_enum, \
-  .get = snd_uda1341_get_enum, .put = snd_uda1341_put_enum, \
-  .private_value = where | (reg << 5) | (shift << 9) | (mask << 12) | (invert << 18) \
-}
-
-static int snd_uda1341_info_enum(struct snd_kcontrol *kcontrol,
-				 struct snd_ctl_elem_info *uinfo)
-{
-	int where = kcontrol->private_value & 31;
-	const char **texts;
-	
-	// this register we don't handle this way
-	if (!uda1341_enum_items[where])
-		return -EINVAL;
-
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = uda1341_enum_items[where];
-
-	if (uinfo->value.enumerated.item >= uda1341_enum_items[where])
-		uinfo->value.enumerated.item = uda1341_enum_items[where] - 1;
-
-	texts = uda1341_enum_names[where];
-	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
-	return 0;
-}
-
-static int snd_uda1341_get_enum(struct snd_kcontrol *kcontrol,
-				struct snd_ctl_elem_value *ucontrol)
-{
-	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
-	struct uda1341 *uda = clnt->driver_data;
-	int where = kcontrol->private_value & 31;        
-        
-	ucontrol->value.enumerated.item[0] = uda->cfg[where];	
-	return 0;
-}
-
-static int snd_uda1341_put_enum(struct snd_kcontrol *kcontrol,
-				struct snd_ctl_elem_value *ucontrol)
-{
-	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
-	struct uda1341 *uda = clnt->driver_data;
-	int where = kcontrol->private_value & 31;        
-	int reg = (kcontrol->private_value >> 5) & 15;
-	int shift = (kcontrol->private_value >> 9) & 7;
-	int mask = (kcontrol->private_value >> 12) & 63;
-
-	uda->cfg[where] = (ucontrol->value.enumerated.item[0] & mask);
-	
-	return snd_uda1341_update_bits(clnt, reg, mask, shift, uda->cfg[where], FLUSH);
-}
-
-/* }}} */
-
-/* {{{ UDA1341 2regs functions */
-
-#define UDA1341_2REGS(xname, where, reg_1, reg_2, shift_1, shift_2, mask_1, mask_2, invert) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .info = snd_uda1341_info_2regs, \
-  .get = snd_uda1341_get_2regs, .put = snd_uda1341_put_2regs, \
-  .private_value = where | (reg_1 << 5) | (reg_2 << 9) | (shift_1 << 13) | (shift_2 << 16) | \
-                         (mask_1 << 19) | (mask_2 << 25) | (invert << 31) \
-}
-
-
-static int snd_uda1341_info_2regs(struct snd_kcontrol *kcontrol,
-				  struct snd_ctl_elem_info *uinfo)
-{
-	int mask_1 = (kcontrol->private_value >> 19) & 63;
-	int mask_2 = (kcontrol->private_value >> 25) & 63;
-	int mask;
-        
-	mask = (mask_2 + 1) * (mask_1 + 1) - 1;
-	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
-	uinfo->count = 1;
-	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = mask;
-	return 0;
-}
-
-static int snd_uda1341_get_2regs(struct snd_kcontrol *kcontrol,
-				 struct snd_ctl_elem_value *ucontrol)
-{
-	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
-	struct uda1341 *uda = clnt->driver_data;
-	int where = kcontrol->private_value & 31;
-	int mask_1 = (kcontrol->private_value >> 19) & 63;
-	int mask_2 = (kcontrol->private_value >> 25) & 63;        
-	int invert = (kcontrol->private_value >> 31) & 1;
-	int mask;
-
-	mask = (mask_2 + 1) * (mask_1 + 1) - 1;
-
-	ucontrol->value.integer.value[0] = uda->cfg[where];
-	if (invert)
-		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
-	return 0;
-}
-
-static int snd_uda1341_put_2regs(struct snd_kcontrol *kcontrol,
-				 struct snd_ctl_elem_value *ucontrol)
-{
-	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
-	struct uda1341 *uda = clnt->driver_data;        
-	int where = kcontrol->private_value & 31;        
-	int reg_1 = (kcontrol->private_value >> 5) & 15;
-	int reg_2 = (kcontrol->private_value >> 9) & 15;        
-	int shift_1 = (kcontrol->private_value >> 13) & 7;
-	int shift_2 = (kcontrol->private_value >> 16) & 7;
-	int mask_1 = (kcontrol->private_value >> 19) & 63;
-	int mask_2 = (kcontrol->private_value >> 25) & 63;        
-	int invert = (kcontrol->private_value >> 31) & 1;
-	int mask;
-	unsigned short val1, val2, val;
-
-	val = ucontrol->value.integer.value[0];
-         
-	mask = (mask_2 + 1) * (mask_1 + 1) - 1;
-
-	val1 = val & mask_1;
-	val2 = (val / (mask_1 + 1)) & mask_2;        
-
-	if (invert) {
-		val1 = mask_1 - val1;
-		val2 = mask_2 - val2;
-	}
-
-	uda->cfg[where] = invert ? mask - val : val;
-        
-	//FIXME - return value
-	snd_uda1341_update_bits(clnt, reg_1, mask_1, shift_1, val1, FLUSH);
-	return snd_uda1341_update_bits(clnt, reg_2, mask_2, shift_2, val2, FLUSH);
-}
-
-/* }}} */
-  
-static struct snd_kcontrol_new snd_uda1341_controls[] = {
-	UDA1341_SINGLE("Master Playback Switch", CMD_MUTE, data0_2, 2, 1, 1),
-	UDA1341_SINGLE("Master Playback Volume", CMD_VOLUME, data0_0, 0, 63, 1),
-
-	UDA1341_SINGLE("Bass Playback Volume", CMD_BASS, data0_1, 2, 15, 0),
-	UDA1341_SINGLE("Treble Playback Volume", CMD_TREBBLE, data0_1, 0, 3, 0),
-
-	UDA1341_SINGLE("Input Gain Switch", CMD_IGAIN, stat1, 5, 1, 0),
-	UDA1341_SINGLE("Output Gain Switch", CMD_OGAIN, stat1, 6, 1, 0),
-
-	UDA1341_SINGLE("Mixer Gain Channel 1 Volume", CMD_CH1, ext0, 0, 31, 1),
-	UDA1341_SINGLE("Mixer Gain Channel 2 Volume", CMD_CH2, ext1, 0, 31, 1),
-
-	UDA1341_SINGLE("Mic Sensitivity Volume", CMD_MIC, ext2, 2, 7, 0),
-
-	UDA1341_SINGLE("AGC Output Level", CMD_AGC_LEVEL, ext6, 0, 3, 0),
-	UDA1341_SINGLE("AGC Time Constant", CMD_AGC_TIME, ext6, 2, 7, 0),
-	UDA1341_SINGLE("AGC Time Constant Switch", CMD_AGC, ext4, 4, 1, 0),
-
-	UDA1341_SINGLE("DAC Power", CMD_DAC, stat1, 0, 1, 0),
-	UDA1341_SINGLE("ADC Power", CMD_ADC, stat1, 1, 1, 0),
-
-	UDA1341_ENUM("Peak detection", CMD_PEAK, data0_2, 5, 1, 0),
-	UDA1341_ENUM("De-emphasis", CMD_DEEMP, data0_2, 3, 3, 0),
-	UDA1341_ENUM("Mixer mode", CMD_MIXER, ext2, 0, 3, 0),
-	UDA1341_ENUM("Filter mode", CMD_FILTER, data0_2, 0, 3, 0),
-
-	UDA1341_2REGS("Gain Input Amplifier Gain (channel 2)", CMD_IG, ext4, ext5, 0, 0, 3, 31, 0),
-};
-
-static void uda1341_free(struct l3_client *clnt)
-{
-	l3_detach_client(clnt); // calls kfree for driver_data (struct uda1341)
-	kfree(clnt);
-}
-
-static int uda1341_dev_free(struct snd_device *device)
-{
-	struct l3_client *clnt = device->device_data;
-	uda1341_free(clnt);
-	return 0;
-}
-
-int __init snd_chip_uda1341_mixer_new(struct snd_card *card, struct l3_client **clntp)
-{
-	static struct snd_device_ops ops = {
-		.dev_free =     uda1341_dev_free,
-	};
-	struct l3_client *clnt;
-	int idx, err;
-
-	if (snd_BUG_ON(!card))
-		return -EINVAL;
-
-	clnt = kzalloc(sizeof(*clnt), GFP_KERNEL);
-	if (clnt == NULL)
-		return -ENOMEM;
-         
-	if ((err = l3_attach_client(clnt, "l3-bit-sa1100-gpio", UDA1341_ALSA_NAME))) {
-		kfree(clnt);
-		return err;
-	}
-
-	for (idx = 0; idx < ARRAY_SIZE(snd_uda1341_controls); idx++) {
-		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_uda1341_controls[idx], clnt))) < 0) {
-			uda1341_free(clnt);
-			return err;
-		}
-	}
-
-	if ((err = snd_device_new(card, SNDRV_DEV_CODEC, clnt, &ops)) < 0) {
-		uda1341_free(clnt);
-		return err;
-	}
-
-	*clntp = clnt;
-	strcpy(card->mixername, "UDA1341TS Mixer");
-	((struct uda1341 *)clnt->driver_data)->card = card;
-        
-	snd_uda1341_proc_init(card, clnt);
-        
-	return 0;
-}
-
-/* }}} */
-
-/* {{{ L3 operations */
-
-static int uda1341_attach(struct l3_client *clnt)
-{
-	struct uda1341 *uda;
-
-	uda = kzalloc(sizeof(*uda), 0, GFP_KERNEL);
-	if (!uda)
-		return -ENOMEM;
-
-	/* init fixed parts of my copy of registers */
-	uda->regs[stat0]   = STAT0;
-	uda->regs[stat1]   = STAT1;
-
-	uda->regs[data0_0] = DATA0_0;
-	uda->regs[data0_1] = DATA0_1;
-	uda->regs[data0_2] = DATA0_2;
-
-	uda->write = snd_uda1341_codec_write;
-	uda->read = snd_uda1341_codec_read;
-  
-	spin_lock_init(&uda->reg_lock);
-        
-	clnt->driver_data = uda;
-	return 0;
-}
-
-static void uda1341_detach(struct l3_client *clnt)
-{
-	kfree(clnt->driver_data);
-}
-
-static int
-uda1341_command(struct l3_client *clnt, int cmd, void *arg)
-{
-	if (cmd != CMD_READ_REG)
-		return snd_uda1341_cfg_write(clnt, cmd, (int) arg, FLUSH);
-
-	return snd_uda1341_codec_read(clnt, (int) arg);
-}
-
-static int uda1341_open(struct l3_client *clnt)
-{
-	struct uda1341 *uda = clnt->driver_data;
-
-	uda->active = 1;
-
-	/* init default configuration */
-	snd_uda1341_cfg_write(clnt, CMD_RESET, 0, REGS_ONLY);
-	snd_uda1341_cfg_write(clnt, CMD_FS, F256, FLUSH);       // unknown state after reset
-	snd_uda1341_cfg_write(clnt, CMD_FORMAT, LSB16, FLUSH);  // unknown state after reset
-	snd_uda1341_cfg_write(clnt, CMD_OGAIN, ON, FLUSH);      // default off after reset
-	snd_uda1341_cfg_write(clnt, CMD_IGAIN, ON, FLUSH);      // default off after reset
-	snd_uda1341_cfg_write(clnt, CMD_DAC, ON, FLUSH);	// ??? default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_ADC, ON, FLUSH);	// ??? default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_VOLUME, 20, FLUSH);     // default 0dB after reset
-	snd_uda1341_cfg_write(clnt, CMD_BASS, 0, REGS_ONLY);    // default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_TREBBLE, 0, REGS_ONLY); // default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_PEAK, AFTER, REGS_ONLY);// default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_DEEMP, NONE, REGS_ONLY);// default value after reset
-	//at this moment should be QMUTED by h3600_audio_init
-	snd_uda1341_cfg_write(clnt, CMD_MUTE, OFF, REGS_ONLY);  // default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_FILTER, MAX, FLUSH);    // defaul flat after reset
-	snd_uda1341_cfg_write(clnt, CMD_CH1, 31, FLUSH);        // default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_CH2, 4, FLUSH);         // default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_MIC, 4, FLUSH);         // default 0dB after reset
-	snd_uda1341_cfg_write(clnt, CMD_MIXER, MIXER, FLUSH);   // default doub.dif.mode          
-	snd_uda1341_cfg_write(clnt, CMD_AGC, OFF, FLUSH);       // default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_IG, 0, FLUSH);          // unknown state after reset
-	snd_uda1341_cfg_write(clnt, CMD_AGC_TIME, 0, FLUSH);    // default value after reset
-	snd_uda1341_cfg_write(clnt, CMD_AGC_LEVEL, 0, FLUSH);   // default value after reset
-
-	return 0;
-}
-
-static void uda1341_close(struct l3_client *clnt)
-{
-	struct uda1341 *uda = clnt->driver_data;
-
-	uda->active = 0;
-}
-
-/* }}} */
-
-/* {{{ Module and L3 initialization */
-
-static struct l3_ops uda1341_ops = {
-	.open =		uda1341_open,
-	.command =	uda1341_command,
-	.close =	uda1341_close,
-};
-
-static struct l3_driver uda1341_driver = {
-	.name =		UDA1341_ALSA_NAME,
-	.attach_client = uda1341_attach,
-	.detach_client = uda1341_detach,
-	.ops =		&uda1341_ops,
-	.owner =	THIS_MODULE,
-};
-
-static int __init uda1341_init(void)
-{
-	return l3_add_driver(&uda1341_driver);
-}
-
-static void __exit uda1341_exit(void)
-{
-	l3_del_driver(&uda1341_driver);
-}
-
-module_init(uda1341_init);
-module_exit(uda1341_exit);
-
-MODULE_AUTHOR("Tomas Kasparek <tomas.kasparek@seznam.cz>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Philips UDA1341 CODEC driver for ALSA");
-MODULE_SUPPORTED_DEVICE("{{UDA1341,UDA1341TS}}");
-
-EXPORT_SYMBOL(snd_chip_uda1341_mixer_new);
-
-/* }}} */
-
-/*
- * Local variables:
- * indent-tabs-mode: t
- * End:
- */
-- 
cgit v1.2.3


From 76a67ec6fb79ff3570dcb5342142c16098299911 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@citi.umich.edu>
Date: Mon, 16 Mar 2009 18:34:20 -0400
Subject: nfsd: nfsd should drop CAP_MKNOD for non-root

Since creating a device node is normally an operation requiring special
privilege, Igor Zhbanov points out that it is surprising (to say the
least) that a client can, for example, create a device node on a
filesystem exported with root_squash.

So, make sure CAP_MKNOD is among the capabilities dropped when an nfsd
thread handles a request from a non-root user.

Reported-by: Igor Zhbanov <izh1979@gmail.com>
Cc: stable@kernel.org
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
---
 include/linux/capability.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/capability.h b/include/linux/capability.h
index 1b9872556131..4864a43b2b45 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -393,8 +393,10 @@ struct cpu_vfs_cap_data {
 # define CAP_FULL_SET     ((kernel_cap_t){{ ~0, ~0 }})
 # define CAP_INIT_EFF_SET ((kernel_cap_t){{ ~CAP_TO_MASK(CAP_SETPCAP), ~0 }})
 # define CAP_FS_SET       ((kernel_cap_t){{ CAP_FS_MASK_B0, CAP_FS_MASK_B1 } })
-# define CAP_NFSD_SET     ((kernel_cap_t){{ CAP_FS_MASK_B0|CAP_TO_MASK(CAP_SYS_RESOURCE), \
-					CAP_FS_MASK_B1 } })
+# define CAP_NFSD_SET     ((kernel_cap_t){{ CAP_FS_MASK_B0 \
+					    | CAP_TO_MASK(CAP_SYS_RESOURCE) \
+					    | CAP_TO_MASK(CAP_MKNOD), \
+					    CAP_FS_MASK_B1 } })
 
 #endif /* _KERNEL_CAPABILITY_U32S != 2 */
 
-- 
cgit v1.2.3


From 9d783ba042771284fb4ee5013c3d94220755ae7f Mon Sep 17 00:00:00 2001
From: Suresh Siddha <suresh.b.siddha@intel.com>
Date: Mon, 16 Mar 2009 17:04:55 -0700
Subject: x86, x2apic: enable fault handling for intr-remapping

Impact: interface augmentation (not yet used)

Enable fault handling flow for intr-remapping aswell. Fault handling
code now shared by both dma-remapping and intr-remapping.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/msidef.h   |   1 +
 arch/x86/kernel/apic/io_apic.c  |   9 +++-
 arch/x86/kernel/apic/probe_64.c |   9 ++++
 drivers/pci/dmar.c              | 102 +++++++++++++++++++++++++++++++++-------
 drivers/pci/intel-iommu.c       |   3 +-
 drivers/pci/intr_remapping.c    |   2 +-
 include/linux/dmar.h            |   5 +-
 include/linux/intel-iommu.h     |   4 +-
 8 files changed, 107 insertions(+), 28 deletions(-)

(limited to 'include')

diff --git a/arch/x86/include/asm/msidef.h b/arch/x86/include/asm/msidef.h
index 6706b3006f13..4cc48af23fef 100644
--- a/arch/x86/include/asm/msidef.h
+++ b/arch/x86/include/asm/msidef.h
@@ -47,6 +47,7 @@
 #define	 MSI_ADDR_DEST_ID_MASK		0x00ffff0
 #define  MSI_ADDR_DEST_ID(dest)		(((dest) << MSI_ADDR_DEST_ID_SHIFT) & \
 					 MSI_ADDR_DEST_ID_MASK)
+#define MSI_ADDR_EXT_DEST_ID(dest)	((dest) & 0xffffff00)
 
 #define MSI_ADDR_IR_EXT_INT		(1 << 4)
 #define MSI_ADDR_IR_SHV			(1 << 3)
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 00e6071cefc4..b18a7734d689 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3294,7 +3294,12 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_ms
 	} else
 #endif
 	{
-		msg->address_hi = MSI_ADDR_BASE_HI;
+		if (x2apic_enabled())
+			msg->address_hi = MSI_ADDR_BASE_HI |
+					  MSI_ADDR_EXT_DEST_ID(dest);
+		else
+			msg->address_hi = MSI_ADDR_BASE_HI;
+
 		msg->address_lo =
 			MSI_ADDR_BASE_LO |
 			((apic->irq_dest_mode == 0) ?
@@ -3528,7 +3533,7 @@ void arch_teardown_msi_irq(unsigned int irq)
 	destroy_irq(irq);
 }
 
-#ifdef CONFIG_DMAR
+#if defined (CONFIG_DMAR) || defined (CONFIG_INTR_REMAP)
 #ifdef CONFIG_SMP
 static void dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
 {
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 8d7748efe6a8..8297c2b8ed20 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -68,6 +68,15 @@ void __init default_setup_apic_routing(void)
 			apic = &apic_physflat;
 		printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
 	}
+
+#ifdef CONFIG_X86_X2APIC
+	/*
+	 * Now that apic routing model is selected, configure the
+	 * fault handling for intr remapping.
+	 */
+	if (intr_remapping_enabled)
+		enable_drhd_fault_handling();
+#endif
 }
 
 /* Same for both flat and physical. */
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 75d34bf2db50..bb4ed985f9c7 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -511,6 +511,7 @@ int alloc_iommu(struct dmar_drhd_unit *drhd)
 		return -ENOMEM;
 
 	iommu->seq_id = iommu_allocated++;
+	sprintf (iommu->name, "dmar%d", iommu->seq_id);
 
 	iommu->reg = ioremap(drhd->reg_base_addr, VTD_PAGE_SIZE);
 	if (!iommu->reg) {
@@ -817,7 +818,13 @@ int dmar_enable_qi(struct intel_iommu *iommu)
 
 /* iommu interrupt handling. Most stuff are MSI-like. */
 
-static const char *fault_reason_strings[] =
+enum faulttype {
+	DMA_REMAP,
+	INTR_REMAP,
+	UNKNOWN,
+};
+
+static const char *dma_remap_fault_reasons[] =
 {
 	"Software",
 	"Present bit in root entry is clear",
@@ -833,14 +840,33 @@ static const char *fault_reason_strings[] =
 	"non-zero reserved fields in CTP",
 	"non-zero reserved fields in PTE",
 };
+
+static const char *intr_remap_fault_reasons[] =
+{
+	"Detected reserved fields in the decoded interrupt-remapped request",
+	"Interrupt index exceeded the interrupt-remapping table size",
+	"Present field in the IRTE entry is clear",
+	"Error accessing interrupt-remapping table pointed by IRTA_REG",
+	"Detected reserved fields in the IRTE entry",
+	"Blocked a compatibility format interrupt request",
+	"Blocked an interrupt request due to source-id verification failure",
+};
+
 #define MAX_FAULT_REASON_IDX 	(ARRAY_SIZE(fault_reason_strings) - 1)
 
-const char *dmar_get_fault_reason(u8 fault_reason)
+const char *dmar_get_fault_reason(u8 fault_reason, int *fault_type)
 {
-	if (fault_reason > MAX_FAULT_REASON_IDX)
+	if (fault_reason >= 0x20 && (fault_reason <= 0x20 +
+				     ARRAY_SIZE(intr_remap_fault_reasons))) {
+		*fault_type = INTR_REMAP;
+		return intr_remap_fault_reasons[fault_reason - 0x20];
+	} else if (fault_reason < ARRAY_SIZE(dma_remap_fault_reasons)) {
+		*fault_type = DMA_REMAP;
+		return dma_remap_fault_reasons[fault_reason];
+	} else {
+		*fault_type = UNKNOWN;
 		return "Unknown";
-	else
-		return fault_reason_strings[fault_reason];
+	}
 }
 
 void dmar_msi_unmask(unsigned int irq)
@@ -897,16 +923,25 @@ static int dmar_fault_do_one(struct intel_iommu *iommu, int type,
 		u8 fault_reason, u16 source_id, unsigned long long addr)
 {
 	const char *reason;
+	int fault_type;
 
-	reason = dmar_get_fault_reason(fault_reason);
+	reason = dmar_get_fault_reason(fault_reason, &fault_type);
 
-	printk(KERN_ERR
-		"DMAR:[%s] Request device [%02x:%02x.%d] "
-		"fault addr %llx \n"
-		"DMAR:[fault reason %02d] %s\n",
-		(type ? "DMA Read" : "DMA Write"),
-		(source_id >> 8), PCI_SLOT(source_id & 0xFF),
-		PCI_FUNC(source_id & 0xFF), addr, fault_reason, reason);
+	if (fault_type == INTR_REMAP)
+		printk(KERN_ERR "INTR-REMAP: Request device [[%02x:%02x.%d] "
+		       "fault index %llx\n"
+			"INTR-REMAP:[fault reason %02d] %s\n",
+			(source_id >> 8), PCI_SLOT(source_id & 0xFF),
+			PCI_FUNC(source_id & 0xFF), addr >> 48,
+			fault_reason, reason);
+	else
+		printk(KERN_ERR
+		       "DMAR:[%s] Request device [%02x:%02x.%d] "
+		       "fault addr %llx \n"
+		       "DMAR:[fault reason %02d] %s\n",
+		       (type ? "DMA Read" : "DMA Write"),
+		       (source_id >> 8), PCI_SLOT(source_id & 0xFF),
+		       PCI_FUNC(source_id & 0xFF), addr, fault_reason, reason);
 	return 0;
 }
 
@@ -920,10 +955,13 @@ static irqreturn_t dmar_fault(int irq, void *dev_id)
 
 	spin_lock_irqsave(&iommu->register_lock, flag);
 	fault_status = readl(iommu->reg + DMAR_FSTS_REG);
+	if (fault_status)
+		printk(KERN_ERR "DRHD: handling fault status reg %x\n",
+		       fault_status);
 
 	/* TBD: ignore advanced fault log currently */
 	if (!(fault_status & DMA_FSTS_PPF))
-		goto clear_overflow;
+		goto clear_rest;
 
 	fault_index = dma_fsts_fault_record_index(fault_status);
 	reg = cap_fault_reg_offset(iommu->cap);
@@ -964,11 +1002,10 @@ static irqreturn_t dmar_fault(int irq, void *dev_id)
 			fault_index = 0;
 		spin_lock_irqsave(&iommu->register_lock, flag);
 	}
-clear_overflow:
-	/* clear primary fault overflow */
+clear_rest:
+	/* clear all the other faults */
 	fault_status = readl(iommu->reg + DMAR_FSTS_REG);
-	if (fault_status & DMA_FSTS_PFO)
-		writel(DMA_FSTS_PFO, iommu->reg + DMAR_FSTS_REG);
+	writel(fault_status, iommu->reg + DMAR_FSTS_REG);
 
 	spin_unlock_irqrestore(&iommu->register_lock, flag);
 	return IRQ_HANDLED;
@@ -978,6 +1015,12 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
 {
 	int irq, ret;
 
+	/*
+	 * Check if the fault interrupt is already initialized.
+	 */
+	if (iommu->irq)
+		return 0;
+
 	irq = create_irq();
 	if (!irq) {
 		printk(KERN_ERR "IOMMU: no free vectors\n");
@@ -1003,3 +1046,26 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
 		printk(KERN_ERR "IOMMU: can't request irq\n");
 	return ret;
 }
+
+int __init enable_drhd_fault_handling(void)
+{
+	struct dmar_drhd_unit *drhd;
+
+	/*
+	 * Enable fault control interrupt.
+	 */
+	for_each_drhd_unit(drhd) {
+		int ret;
+		struct intel_iommu *iommu = drhd->iommu;
+		ret = dmar_set_interrupt(iommu);
+
+		if (ret) {
+			printk(KERN_ERR "DRHD %Lx: failed to enable fault, "
+			       " interrupt, ret %d\n",
+			       (unsigned long long)drhd->reg_base_addr, ret);
+			return -1;
+		}
+	}
+
+	return 0;
+}
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 4a4ab651b709..25fc1df486bb 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -1799,7 +1799,7 @@ static int __init init_dmars(void)
 	struct dmar_rmrr_unit *rmrr;
 	struct pci_dev *pdev;
 	struct intel_iommu *iommu;
-	int i, ret, unit = 0;
+	int i, ret;
 
 	/*
 	 * for each drhd
@@ -1921,7 +1921,6 @@ static int __init init_dmars(void)
 		if (drhd->ignored)
 			continue;
 		iommu = drhd->iommu;
-		sprintf (iommu->name, "dmar%d", unit++);
 
 		iommu_flush_write_buffer(iommu);
 
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index 5ffa65fffb6a..c38e3f437a81 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -308,7 +308,7 @@ int modify_irte(int irq, struct irte *irte_modified)
 	index = irq_iommu->irte_index + irq_iommu->sub_handle;
 	irte = &iommu->ir_table->base[index];
 
-	set_64bit((unsigned long *)irte, irte_modified->low | (1 << 1));
+	set_64bit((unsigned long *)irte, irte_modified->low);
 	__iommu_flush_cache(iommu, irte, sizeof(*irte));
 
 	rc = qi_flush_iec(iommu, index, 0);
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index f28440784cf0..c7768330c11d 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -49,6 +49,7 @@ extern int dmar_dev_scope_init(void);
 
 /* Intel IOMMU detection */
 extern void detect_intel_iommu(void);
+extern int enable_drhd_fault_handling(void);
 
 
 extern int parse_ioapics_under_ir(void);
@@ -116,9 +117,6 @@ extern struct intel_iommu *map_ioapic_to_ir(int apic);
 #define intr_remapping_enabled		(0)
 #endif
 
-#ifdef CONFIG_DMAR
-extern const char *dmar_get_fault_reason(u8 fault_reason);
-
 /* Can't use the common MSI interrupt functions
  * since DMAR is not a pci device
  */
@@ -129,6 +127,7 @@ extern void dmar_msi_write(int irq, struct msi_msg *msg);
 extern int dmar_set_interrupt(struct intel_iommu *iommu);
 extern int arch_setup_dmar_msi(unsigned int irq);
 
+#ifdef CONFIG_DMAR
 extern int iommu_detected, no_iommu;
 extern struct list_head dmar_rmrr_units;
 struct dmar_rmrr_unit {
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index d2e3cbfba14f..a9563840644b 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -292,6 +292,8 @@ struct intel_iommu {
 	spinlock_t	register_lock; /* protect register handling */
 	int		seq_id;	/* sequence id of the iommu */
 	int		agaw; /* agaw of this iommu */
+	unsigned int 	irq;
+	unsigned char 	name[13];    /* Device Name */
 
 #ifdef CONFIG_DMAR
 	unsigned long 	*domain_ids; /* bitmap of domains */
@@ -299,8 +301,6 @@ struct intel_iommu {
 	spinlock_t	lock; /* protect context, domain ids */
 	struct root_entry *root_entry; /* virtual address */
 
-	unsigned int irq;
-	unsigned char name[7];    /* Device Name */
 	struct iommu_flush flush;
 #endif
 	struct q_inval  *qi;            /* Queued invalidation info */
-- 
cgit v1.2.3


From eba67e5da6e971993b2899d2cdf459ce77d3dbc5 Mon Sep 17 00:00:00 2001
From: Suresh Siddha <suresh.b.siddha@intel.com>
Date: Mon, 16 Mar 2009 17:04:56 -0700
Subject: x86, dmar: routines for disabling queued invalidation and intr
 remapping

Impact: new interfaces (not yet used)

Routines for disabling queued invalidation and interrupt remapping.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 drivers/pci/dmar.c           | 36 ++++++++++++++++++++++++++++++++++++
 drivers/pci/intr_remapping.c | 27 +++++++++++++++++++++++++++
 include/linux/intel-iommu.h  |  1 +
 3 files changed, 64 insertions(+)

(limited to 'include')

diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index bb4ed985f9c7..932e5e3930fc 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -753,6 +753,42 @@ int qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,
 	return qi_submit_sync(&desc, iommu);
 }
 
+/*
+ * Disable Queued Invalidation interface.
+ */
+void dmar_disable_qi(struct intel_iommu *iommu)
+{
+	unsigned long flags;
+	u32 sts;
+	cycles_t start_time = get_cycles();
+
+	if (!ecap_qis(iommu->ecap))
+		return;
+
+	spin_lock_irqsave(&iommu->register_lock, flags);
+
+	sts =  dmar_readq(iommu->reg + DMAR_GSTS_REG);
+	if (!(sts & DMA_GSTS_QIES))
+		goto end;
+
+	/*
+	 * Give a chance to HW to complete the pending invalidation requests.
+	 */
+	while ((readl(iommu->reg + DMAR_IQT_REG) !=
+		readl(iommu->reg + DMAR_IQH_REG)) &&
+		(DMAR_OPERATION_TIMEOUT > (get_cycles() - start_time)))
+		cpu_relax();
+
+	iommu->gcmd &= ~DMA_GCMD_QIE;
+
+	writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG);
+
+	IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG, readl,
+		      !(sts & DMA_GSTS_QIES), sts);
+end:
+	spin_unlock_irqrestore(&iommu->register_lock, flags);
+}
+
 /*
  * Enable Queued Invalidation interface. This is a must to support
  * interrupt-remapping. Also used by DMA-remapping, which replaces
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index c38e3f437a81..0d202d73a1ac 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -467,6 +467,33 @@ static int setup_intr_remapping(struct intel_iommu *iommu, int mode)
 	return 0;
 }
 
+/*
+ * Disable Interrupt Remapping.
+ */
+static void disable_intr_remapping(struct intel_iommu *iommu)
+{
+	unsigned long flags;
+	u32 sts;
+
+	if (!ecap_ir_support(iommu->ecap))
+		return;
+
+	spin_lock_irqsave(&iommu->register_lock, flags);
+
+	sts = dmar_readq(iommu->reg + DMAR_GSTS_REG);
+	if (!(sts & DMA_GSTS_IRES))
+		goto end;
+
+	iommu->gcmd &= ~DMA_GCMD_IRE;
+	writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG);
+
+	IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG,
+		      readl, !(sts & DMA_GSTS_IRES), sts);
+
+end:
+	spin_unlock_irqrestore(&iommu->register_lock, flags);
+}
+
 int __init enable_intr_remapping(int eim)
 {
 	struct dmar_drhd_unit *drhd;
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index a9563840644b..78c1262e8704 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -321,6 +321,7 @@ extern struct dmar_drhd_unit * dmar_find_matched_drhd_unit(struct pci_dev *dev);
 extern int alloc_iommu(struct dmar_drhd_unit *drhd);
 extern void free_iommu(struct intel_iommu *iommu);
 extern int dmar_enable_qi(struct intel_iommu *iommu);
+extern void dmar_disable_qi(struct intel_iommu *iommu);
 extern void qi_global_iec(struct intel_iommu *iommu);
 
 extern int qi_flush_context(struct intel_iommu *iommu, u16 did, u16 sid,
-- 
cgit v1.2.3


From 1531a6a6b81a4e6f9eec9a5608758a6ea14b96e0 Mon Sep 17 00:00:00 2001
From: Suresh Siddha <suresh.b.siddha@intel.com>
Date: Mon, 16 Mar 2009 17:04:57 -0700
Subject: x86, dmar: start with sane state while enabling dma and
 interrupt-remapping

Impact: cleanup/sanitization

Start from a sane state while enabling dma and interrupt-remapping, by
clearing the previous recorded faults and disabling previously
enabled queued invalidation and interrupt-remapping.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 drivers/pci/dmar.c           |  5 +----
 drivers/pci/intel-iommu.c    | 29 +++++++++++++++++++++++++++++
 drivers/pci/intr_remapping.c | 17 +++++++++++++++++
 include/linux/dmar.h         |  2 ++
 4 files changed, 49 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 932e5e3930fc..f1805002e436 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -982,7 +982,7 @@ static int dmar_fault_do_one(struct intel_iommu *iommu, int type,
 }
 
 #define PRIMARY_FAULT_REG_LEN (16)
-static irqreturn_t dmar_fault(int irq, void *dev_id)
+irqreturn_t dmar_fault(int irq, void *dev_id)
 {
 	struct intel_iommu *iommu = dev_id;
 	int reg, fault_index;
@@ -1074,9 +1074,6 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
 		return 0;
 	}
 
-	/* Force fault register is cleared */
-	dmar_fault(irq, iommu);
-
 	ret = request_irq(irq, dmar_fault, 0, iommu->name, iommu);
 	if (ret)
 		printk(KERN_ERR "IOMMU: can't request irq\n");
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 25fc1df486bb..ef167b8b047d 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -1855,11 +1855,40 @@ static int __init init_dmars(void)
 		}
 	}
 
+	/*
+	 * Start from the sane iommu hardware state.
+	 */
 	for_each_drhd_unit(drhd) {
 		if (drhd->ignored)
 			continue;
 
 		iommu = drhd->iommu;
+
+		/*
+		 * If the queued invalidation is already initialized by us
+		 * (for example, while enabling interrupt-remapping) then
+		 * we got the things already rolling from a sane state.
+		 */
+		if (iommu->qi)
+			continue;
+
+		/*
+		 * Clear any previous faults.
+		 */
+		dmar_fault(-1, iommu);
+		/*
+		 * Disable queued invalidation if supported and already enabled
+		 * before OS handover.
+		 */
+		dmar_disable_qi(iommu);
+	}
+
+	for_each_drhd_unit(drhd) {
+		if (drhd->ignored)
+			continue;
+
+		iommu = drhd->iommu;
+
 		if (dmar_enable_qi(iommu)) {
 			/*
 			 * Queued Invalidate not enabled, use Register Based
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index 0d202d73a1ac..a84686b2478b 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -499,6 +499,23 @@ int __init enable_intr_remapping(int eim)
 	struct dmar_drhd_unit *drhd;
 	int setup = 0;
 
+	for_each_drhd_unit(drhd) {
+		struct intel_iommu *iommu = drhd->iommu;
+
+		/*
+		 * Clear previous faults.
+		 */
+		dmar_fault(-1, iommu);
+
+		/*
+		 * Disable intr remapping and queued invalidation, if already
+		 * enabled prior to OS handover.
+		 */
+		disable_intr_remapping(iommu);
+
+		dmar_disable_qi(iommu);
+	}
+
 	/*
 	 * check for the Interrupt-remapping support
 	 */
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index c7768330c11d..8a035aec14a9 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -24,6 +24,7 @@
 #include <linux/acpi.h>
 #include <linux/types.h>
 #include <linux/msi.h>
+#include <linux/irqreturn.h>
 
 #if defined(CONFIG_DMAR) || defined(CONFIG_INTR_REMAP)
 struct intel_iommu;
@@ -125,6 +126,7 @@ extern void dmar_msi_mask(unsigned int irq);
 extern void dmar_msi_read(int irq, struct msi_msg *msg);
 extern void dmar_msi_write(int irq, struct msi_msg *msg);
 extern int dmar_set_interrupt(struct intel_iommu *iommu);
+extern irqreturn_t dmar_fault(int irq, void *dev_id);
 extern int arch_setup_dmar_msi(unsigned int irq);
 
 #ifdef CONFIG_DMAR
-- 
cgit v1.2.3


From 29b61be65a33c95564fa82e7e8d60d97adb68ea8 Mon Sep 17 00:00:00 2001
From: Suresh Siddha <suresh.b.siddha@intel.com>
Date: Mon, 16 Mar 2009 17:05:02 -0700
Subject: x86, x2apic: cleanup ifdef CONFIG_INTR_REMAP in io_apic code

Impact: cleanup

Clean up #ifdefs and replace them with helper functions.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/kernel/apic/io_apic.c  | 44 +++++++++-------------------------------
 arch/x86/kernel/apic/probe_64.c |  2 --
 include/linux/dmar.h            | 45 ++++++++++++++++++++++++++++++++++-------
 3 files changed, 48 insertions(+), 43 deletions(-)

(limited to 'include')

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index e074eac5bd35..cf27795c641c 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -554,16 +554,12 @@ static void __target_IO_APIC_irq(unsigned int irq, unsigned int dest, struct irq
 
 		apic = entry->apic;
 		pin = entry->pin;
-#ifdef CONFIG_INTR_REMAP
 		/*
 		 * With interrupt-remapping, destination information comes
 		 * from interrupt-remapping table entry.
 		 */
 		if (!irq_remapped(irq))
 			io_apic_write(apic, 0x11 + pin*2, dest);
-#else
-		io_apic_write(apic, 0x11 + pin*2, dest);
-#endif
 		reg = io_apic_read(apic, 0x10 + pin*2);
 		reg &= ~IO_APIC_REDIR_VECTOR_MASK;
 		reg |= vector;
@@ -1419,9 +1415,8 @@ void __setup_vector_irq(int cpu)
 }
 
 static struct irq_chip ioapic_chip;
-#ifdef CONFIG_INTR_REMAP
 static struct irq_chip ir_ioapic_chip;
-#endif
+static struct irq_chip msi_ir_chip;
 
 #define IOAPIC_AUTO     -1
 #define IOAPIC_EDGE     0
@@ -1460,7 +1455,6 @@ static void ioapic_register_intr(int irq, struct irq_desc *desc, unsigned long t
 	else
 		desc->status &= ~IRQ_LEVEL;
 
-#ifdef CONFIG_INTR_REMAP
 	if (irq_remapped(irq)) {
 		desc->status |= IRQ_MOVE_PCNTXT;
 		if (trigger)
@@ -1472,7 +1466,7 @@ static void ioapic_register_intr(int irq, struct irq_desc *desc, unsigned long t
 						      handle_edge_irq, "edge");
 		return;
 	}
-#endif
+
 	if ((trigger == IOAPIC_AUTO && IO_APIC_irq_trigger(irq)) ||
 	    trigger == IOAPIC_LEVEL)
 		set_irq_chip_and_handler_name(irq, &ioapic_chip,
@@ -1493,7 +1487,6 @@ int setup_ioapic_entry(int apic_id, int irq,
 	 */
 	memset(entry,0,sizeof(*entry));
 
-#ifdef CONFIG_INTR_REMAP
 	if (intr_remapping_enabled) {
 		struct intel_iommu *iommu = map_ioapic_to_ir(apic_id);
 		struct irte irte;
@@ -1535,9 +1528,7 @@ int setup_ioapic_entry(int apic_id, int irq,
 		 * irq handler will do the explicit EOI to the io-apic.
 		 */
 		ir_entry->vector = pin;
-	} else
-#endif
-	{
+	} else {
 		entry->delivery_mode = apic->irq_delivery_mode;
 		entry->dest_mode = apic->irq_dest_mode;
 		entry->dest = destination;
@@ -1662,10 +1653,8 @@ static void __init setup_timer_IRQ0_pin(unsigned int apic_id, unsigned int pin,
 {
 	struct IO_APIC_route_entry entry;
 
-#ifdef CONFIG_INTR_REMAP
 	if (intr_remapping_enabled)
 		return;
-#endif
 
 	memset(&entry, 0, sizeof(entry));
 
@@ -2395,6 +2384,11 @@ static void set_ir_ioapic_affinity_irq(unsigned int irq,
 
 	set_ir_ioapic_affinity_irq_desc(desc, mask);
 }
+#else
+static inline void set_ir_ioapic_affinity_irq_desc(struct irq_desc *desc,
+						   const struct cpumask *mask)
+{
+}
 #endif
 
 asmlinkage void smp_irq_move_cleanup_interrupt(void)
@@ -2883,10 +2877,8 @@ static inline void __init check_timer(void)
 	 * 8259A.
 	 */
 	if (pin1 == -1) {
-#ifdef CONFIG_INTR_REMAP
 		if (intr_remapping_enabled)
 			panic("BIOS bug: timer not connected to IO-APIC");
-#endif
 		pin1 = pin2;
 		apic1 = apic2;
 		no_pin1 = 1;
@@ -2922,10 +2914,8 @@ static inline void __init check_timer(void)
 				clear_IO_APIC_pin(0, pin1);
 			goto out;
 		}
-#ifdef CONFIG_INTR_REMAP
 		if (intr_remapping_enabled)
 			panic("timer doesn't work through Interrupt-remapped IO-APIC");
-#endif
 		local_irq_disable();
 		clear_IO_APIC_pin(apic1, pin1);
 		if (!no_pin1)
@@ -3219,9 +3209,7 @@ void destroy_irq(unsigned int irq)
 	if (desc)
 		desc->chip_data = cfg;
 
-#ifdef CONFIG_INTR_REMAP
 	free_irte(irq);
-#endif
 	spin_lock_irqsave(&vector_lock, flags);
 	__clear_irq_vector(irq, cfg);
 	spin_unlock_irqrestore(&vector_lock, flags);
@@ -3247,7 +3235,6 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_ms
 
 	dest = apic->cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus());
 
-#ifdef CONFIG_INTR_REMAP
 	if (irq_remapped(irq)) {
 		struct irte irte;
 		int ir_index;
@@ -3273,9 +3260,7 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_ms
 				  MSI_ADDR_IR_SHV |
 				  MSI_ADDR_IR_INDEX1(ir_index) |
 				  MSI_ADDR_IR_INDEX2(ir_index);
-	} else
-#endif
-	{
+	} else {
 		if (x2apic_enabled())
 			msg->address_hi = MSI_ADDR_BASE_HI |
 					  MSI_ADDR_EXT_DEST_ID(dest);
@@ -3392,6 +3377,7 @@ static struct irq_chip msi_ir_chip = {
 #endif
 	.retrigger	= ioapic_retrigger_irq,
 };
+#endif
 
 /*
  * Map the PCI dev to the corresponding remapping hardware unit
@@ -3419,7 +3405,6 @@ static int msi_alloc_irte(struct pci_dev *dev, int irq, int nvec)
 	}
 	return index;
 }
-#endif
 
 static int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int irq)
 {
@@ -3433,7 +3418,6 @@ static int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int irq)
 	set_irq_msi(irq, msidesc);
 	write_msi_msg(irq, &msg);
 
-#ifdef CONFIG_INTR_REMAP
 	if (irq_remapped(irq)) {
 		struct irq_desc *desc = irq_to_desc(irq);
 		/*
@@ -3442,7 +3426,6 @@ static int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int irq)
 		desc->status |= IRQ_MOVE_PCNTXT;
 		set_irq_chip_and_handler_name(irq, &msi_ir_chip, handle_edge_irq, "edge");
 	} else
-#endif
 		set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq, "edge");
 
 	dev_printk(KERN_DEBUG, &dev->dev, "irq %d for MSI/MSI-X\n", irq);
@@ -3456,11 +3439,8 @@ int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 	int ret, sub_handle;
 	struct msi_desc *msidesc;
 	unsigned int irq_want;
-
-#ifdef CONFIG_INTR_REMAP
 	struct intel_iommu *iommu = 0;
 	int index = 0;
-#endif
 
 	irq_want = nr_irqs_gsi;
 	sub_handle = 0;
@@ -3469,7 +3449,6 @@ int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 		if (irq == 0)
 			return -1;
 		irq_want = irq + 1;
-#ifdef CONFIG_INTR_REMAP
 		if (!intr_remapping_enabled)
 			goto no_ir;
 
@@ -3497,7 +3476,6 @@ int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 			set_irte_irq(irq, iommu, index, sub_handle);
 		}
 no_ir:
-#endif
 		ret = setup_msi_irq(dev, msidesc, irq);
 		if (ret < 0)
 			goto error;
@@ -4032,11 +4010,9 @@ void __init setup_ioapic_dest(void)
 			else
 				mask = apic->target_cpus();
 
-#ifdef CONFIG_INTR_REMAP
 			if (intr_remapping_enabled)
 				set_ir_ioapic_affinity_irq_desc(desc, mask);
 			else
-#endif
 				set_ioapic_affinity_irq_desc(desc, mask);
 		}
 
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 8297c2b8ed20..1783652bb0e5 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -69,14 +69,12 @@ void __init default_setup_apic_routing(void)
 		printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
 	}
 
-#ifdef CONFIG_X86_X2APIC
 	/*
 	 * Now that apic routing model is selected, configure the
 	 * fault handling for intr remapping.
 	 */
 	if (intr_remapping_enabled)
 		enable_drhd_fault_handling();
-#endif
 }
 
 /* Same for both flat and physical. */
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 8a035aec14a9..2f3427468956 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -26,9 +26,8 @@
 #include <linux/msi.h>
 #include <linux/irqreturn.h>
 
-#if defined(CONFIG_DMAR) || defined(CONFIG_INTR_REMAP)
 struct intel_iommu;
-
+#if defined(CONFIG_DMAR) || defined(CONFIG_INTR_REMAP)
 struct dmar_drhd_unit {
 	struct list_head list;		/* list of drhd units	*/
 	struct  acpi_dmar_header *hdr;	/* ACPI header		*/
@@ -52,7 +51,6 @@ extern int dmar_dev_scope_init(void);
 extern void detect_intel_iommu(void);
 extern int enable_drhd_fault_handling(void);
 
-
 extern int parse_ioapics_under_ir(void);
 extern int alloc_iommu(struct dmar_drhd_unit *);
 #else
@@ -65,12 +63,12 @@ static inline int dmar_table_init(void)
 {
 	return -ENODEV;
 }
+static inline int enable_drhd_fault_handling(void)
+{
+	return -1;
+}
 #endif /* !CONFIG_DMAR && !CONFIG_INTR_REMAP */
 
-#ifdef CONFIG_INTR_REMAP
-extern int intr_remapping_enabled;
-extern int enable_intr_remapping(int);
-
 struct irte {
 	union {
 		struct {
@@ -99,6 +97,10 @@ struct irte {
 		__u64 high;
 	};
 };
+#ifdef CONFIG_INTR_REMAP
+extern int intr_remapping_enabled;
+extern int enable_intr_remapping(int);
+
 extern int get_irte(int irq, struct irte *entry);
 extern int modify_irte(int irq, struct irte *irte_modified);
 extern int alloc_irte(struct intel_iommu *iommu, int irq, u16 count);
@@ -113,6 +115,35 @@ extern int irq_remapped(int irq);
 extern struct intel_iommu *map_dev_to_ir(struct pci_dev *dev);
 extern struct intel_iommu *map_ioapic_to_ir(int apic);
 #else
+static inline int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
+{
+	return -1;
+}
+static inline int modify_irte(int irq, struct irte *irte_modified)
+{
+	return -1;
+}
+static inline int free_irte(int irq)
+{
+	return -1;
+}
+static inline int map_irq_to_irte_handle(int irq, u16 *sub_handle)
+{
+	return -1;
+}
+static inline int set_irte_irq(int irq, struct intel_iommu *iommu, u16 index,
+			       u16 sub_handle)
+{
+	return -1;
+}
+static inline struct intel_iommu *map_dev_to_ir(struct pci_dev *dev)
+{
+	return NULL;
+}
+static inline struct intel_iommu *map_ioapic_to_ir(int apic)
+{
+	return NULL;
+}
 #define irq_remapped(irq)		(0)
 #define enable_intr_remapping(mode)	(-1)
 #define intr_remapping_enabled		(0)
-- 
cgit v1.2.3


From 84be58d4601c86306cd939ebf58a9b90989883a4 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 18 Mar 2009 11:50:29 +0100
Subject: dma-debug: fix dma_debug_add_bus() definition for
 !CONFIG_DMA_API_DEBUG

Impact: build fix

Fix:

 arch/x86/kvm/x86.o: In function `dma_debug_add_bus':
 (.text+0x0): multiple definition of `dma_debug_add_bus'

dma_debug_add_bus() should be a static inline function.

Cc: Joerg Roedel <joerg.roedel@amd.com>
LKML-Reference: <20090317120112.GP6159@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/dma-debug.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index e851d23e91eb..28d53cb7b5a2 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -83,7 +83,7 @@ extern void debug_dma_dump_mappings(struct device *dev);
 
 #else /* CONFIG_DMA_API_DEBUG */
 
-void dma_debug_add_bus(struct bus_type *bus)
+static inline void dma_debug_add_bus(struct bus_type *bus)
 {
 }
 
-- 
cgit v1.2.3


From 711d60a9e7f88e394ccca10f5fc83f95f0cea5b1 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Wed, 18 Mar 2009 17:30:50 +0100
Subject: netfilter: remove nf_ct_l4proto_find_get/nf_ct_l4proto_put

users have been moved to __nf_ct_l4proto_find.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_conntrack_l4proto.h |  5 -----
 net/netfilter/nf_conntrack_proto.c           | 21 ---------------------
 2 files changed, 26 deletions(-)

(limited to 'include')

diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 16ab604659e7..b01070bf2f84 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -98,11 +98,6 @@ extern struct nf_conntrack_l4proto nf_conntrack_l4proto_generic;
 extern struct nf_conntrack_l4proto *
 __nf_ct_l4proto_find(u_int16_t l3proto, u_int8_t l4proto);
 
-extern struct nf_conntrack_l4proto *
-nf_ct_l4proto_find_get(u_int16_t l3proto, u_int8_t protocol);
-
-extern void nf_ct_l4proto_put(struct nf_conntrack_l4proto *p);
-
 /* Protocol registration. */
 extern int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *proto);
 extern void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *proto);
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index 592d73344d46..9a62b4efa0e1 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -74,27 +74,6 @@ EXPORT_SYMBOL_GPL(__nf_ct_l4proto_find);
 
 /* this is guaranteed to always return a valid protocol helper, since
  * it falls back to generic_protocol */
-struct nf_conntrack_l4proto *
-nf_ct_l4proto_find_get(u_int16_t l3proto, u_int8_t l4proto)
-{
-	struct nf_conntrack_l4proto *p;
-
-	rcu_read_lock();
-	p = __nf_ct_l4proto_find(l3proto, l4proto);
-	if (!try_module_get(p->me))
-		p = &nf_conntrack_l4proto_generic;
-	rcu_read_unlock();
-
-	return p;
-}
-EXPORT_SYMBOL_GPL(nf_ct_l4proto_find_get);
-
-void nf_ct_l4proto_put(struct nf_conntrack_l4proto *p)
-{
-	module_put(p->me);
-}
-EXPORT_SYMBOL_GPL(nf_ct_l4proto_put);
-
 struct nf_conntrack_l3proto *
 nf_ct_l3proto_find_get(u_int16_t l3proto)
 {
-- 
cgit v1.2.3


From 27bf91d6a0d5a9c7224e8687754249bba67dd4cf Mon Sep 17 00:00:00 2001
From: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Date: Wed, 18 Mar 2009 19:45:11 -0700
Subject: mlx4_core: Add link type autosensing

When a port's link is down (except to driver restart) and the port is
configured for auto sensing, we try to sense port link type (Ethernet
or InfiniBand) in order to determine how to initialize the port.  If
the port type needs to be changed, all mlx4 for the device interfaces
are unregistered and then registered again with the new port
types.  Sensing is done with intervals of 3 seconds.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
 drivers/net/mlx4/Makefile   |   2 +-
 drivers/net/mlx4/catas.c    |  16 +----
 drivers/net/mlx4/eq.c       |  16 +++--
 drivers/net/mlx4/main.c     | 104 +++++++++++++++++++++--------
 drivers/net/mlx4/mlx4.h     |  27 +++++++-
 drivers/net/mlx4/sense.c    | 156 ++++++++++++++++++++++++++++++++++++++++++++
 include/linux/mlx4/cmd.h    |   1 +
 include/linux/mlx4/device.h |   6 +-
 8 files changed, 277 insertions(+), 51 deletions(-)
 create mode 100644 drivers/net/mlx4/sense.c

(limited to 'include')

diff --git a/drivers/net/mlx4/Makefile b/drivers/net/mlx4/Makefile
index a7a97bf998f8..21040a0d81fe 100644
--- a/drivers/net/mlx4/Makefile
+++ b/drivers/net/mlx4/Makefile
@@ -1,7 +1,7 @@
 obj-$(CONFIG_MLX4_CORE)		+= mlx4_core.o
 
 mlx4_core-y :=	alloc.o catas.o cmd.o cq.o eq.o fw.o icm.o intf.o main.o mcg.o \
-		mr.o pd.o port.o profile.o qp.o reset.o srq.o
+		mr.o pd.o port.o profile.o qp.o reset.o sense.o srq.o
 
 obj-$(CONFIG_MLX4_EN)               += mlx4_en.o
 
diff --git a/drivers/net/mlx4/catas.c b/drivers/net/mlx4/catas.c
index f094ee00c416..aa9674b7f19c 100644
--- a/drivers/net/mlx4/catas.c
+++ b/drivers/net/mlx4/catas.c
@@ -42,7 +42,6 @@ enum {
 static DEFINE_SPINLOCK(catas_lock);
 
 static LIST_HEAD(catas_list);
-static struct workqueue_struct *catas_wq;
 static struct work_struct catas_work;
 
 static int internal_err_reset = 1;
@@ -77,7 +76,7 @@ static void poll_catas(unsigned long dev_ptr)
 			list_add(&priv->catas_err.list, &catas_list);
 			spin_unlock(&catas_lock);
 
-			queue_work(catas_wq, &catas_work);
+			queue_work(mlx4_wq, &catas_work);
 		}
 	} else
 		mod_timer(&priv->catas_err.timer,
@@ -146,18 +145,7 @@ void mlx4_stop_catas_poll(struct mlx4_dev *dev)
 	spin_unlock_irq(&catas_lock);
 }
 
-int __init mlx4_catas_init(void)
+void  __init mlx4_catas_init(void)
 {
 	INIT_WORK(&catas_work, catas_reset);
-
-	catas_wq = create_singlethread_workqueue("mlx4_err");
-	if (!catas_wq)
-		return -ENOMEM;
-
-	return 0;
-}
-
-void mlx4_catas_cleanup(void)
-{
-	destroy_workqueue(catas_wq);
 }
diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
index 2c19bff7cbab..8830dcb92ec8 100644
--- a/drivers/net/mlx4/eq.c
+++ b/drivers/net/mlx4/eq.c
@@ -163,6 +163,7 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
 	int cqn;
 	int eqes_found = 0;
 	int set_ci = 0;
+	int port;
 
 	while ((eqe = next_eqe_sw(eq))) {
 		/*
@@ -203,11 +204,16 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
 			break;
 
 		case MLX4_EVENT_TYPE_PORT_CHANGE:
-			mlx4_dispatch_event(dev,
-					    eqe->subtype == MLX4_PORT_CHANGE_SUBTYPE_ACTIVE ?
-					    MLX4_DEV_EVENT_PORT_UP :
-					    MLX4_DEV_EVENT_PORT_DOWN,
-					    be32_to_cpu(eqe->event.port_change.port) >> 28);
+			port = be32_to_cpu(eqe->event.port_change.port) >> 28;
+			if (eqe->subtype == MLX4_PORT_CHANGE_SUBTYPE_DOWN) {
+				mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_DOWN,
+						    port);
+				mlx4_priv(dev)->sense.do_sense_port[port] = 1;
+			} else {
+				mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_UP,
+						    port);
+				mlx4_priv(dev)->sense.do_sense_port[port] = 0;
+			}
 			break;
 
 		case MLX4_EVENT_TYPE_CQ_ERROR:
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 8480f0346844..a66f5b2fd288 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -51,6 +51,8 @@ MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(DRV_VERSION);
 
+struct workqueue_struct *mlx4_wq;
+
 #ifdef CONFIG_MLX4_DEBUG
 
 int mlx4_debug_level = 0;
@@ -98,24 +100,23 @@ module_param_named(use_prio, use_prio, bool, 0444);
 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
 		  "(0/1, default 0)");
 
-static int mlx4_check_port_params(struct mlx4_dev *dev,
-				  enum mlx4_port_type *port_type)
+int mlx4_check_port_params(struct mlx4_dev *dev,
+			   enum mlx4_port_type *port_type)
 {
 	int i;
 
 	for (i = 0; i < dev->caps.num_ports - 1; i++) {
-		if (port_type[i] != port_type[i+1] &&
-		    !(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
-			mlx4_err(dev, "Only same port types supported "
-				 "on this HCA, aborting.\n");
-			return -EINVAL;
+		if (port_type[i] != port_type[i + 1]) {
+			if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
+				mlx4_err(dev, "Only same port types supported "
+					 "on this HCA, aborting.\n");
+				return -EINVAL;
+			}
+			if (port_type[i] == MLX4_PORT_TYPE_ETH &&
+			    port_type[i + 1] == MLX4_PORT_TYPE_IB)
+				return -EINVAL;
 		}
 	}
-	if ((port_type[0] == MLX4_PORT_TYPE_ETH) &&
-	    (port_type[1] == MLX4_PORT_TYPE_IB)) {
-		mlx4_err(dev, "eth-ib configuration is not supported.\n");
-		return -EINVAL;
-	}
 
 	for (i = 0; i < dev->caps.num_ports; i++) {
 		if (!(port_type[i] & dev->caps.supported_type[i+1])) {
@@ -225,6 +226,9 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 			dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
 		else
 			dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
+		dev->caps.possible_type[i] = dev->caps.port_type[i];
+		mlx4_priv(dev)->sense.sense_allowed[i] =
+			dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO;
 
 		if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
 			dev->caps.log_num_macs = dev_cap->log_max_macs[i];
@@ -263,14 +267,16 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
  * Change the port configuration of the device.
  * Every user of this function must hold the port mutex.
  */
-static int mlx4_change_port_types(struct mlx4_dev *dev,
-				  enum mlx4_port_type *port_types)
+int mlx4_change_port_types(struct mlx4_dev *dev,
+			   enum mlx4_port_type *port_types)
 {
 	int err = 0;
 	int change = 0;
 	int port;
 
 	for (port = 0; port <  dev->caps.num_ports; port++) {
+		/* Change the port type only if the new type is different
+		 * from the current, and not set to Auto */
 		if (port_types[port] != dev->caps.port_type[port + 1]) {
 			change = 1;
 			dev->caps.port_type[port + 1] = port_types[port];
@@ -302,10 +308,17 @@ static ssize_t show_port_type(struct device *dev,
 	struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
 						   port_attr);
 	struct mlx4_dev *mdev = info->dev;
+	char type[8];
+
+	sprintf(type, "%s",
+		(mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
+		"ib" : "eth");
+	if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
+		sprintf(buf, "auto (%s)\n", type);
+	else
+		sprintf(buf, "%s\n", type);
 
-	return sprintf(buf, "%s\n",
-		       mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB ?
-		       "ib" : "eth");
+	return strlen(buf);
 }
 
 static ssize_t set_port_type(struct device *dev,
@@ -317,6 +330,7 @@ static ssize_t set_port_type(struct device *dev,
 	struct mlx4_dev *mdev = info->dev;
 	struct mlx4_priv *priv = mlx4_priv(mdev);
 	enum mlx4_port_type types[MLX4_MAX_PORTS];
+	enum mlx4_port_type new_types[MLX4_MAX_PORTS];
 	int i;
 	int err = 0;
 
@@ -324,26 +338,56 @@ static ssize_t set_port_type(struct device *dev,
 		info->tmp_type = MLX4_PORT_TYPE_IB;
 	else if (!strcmp(buf, "eth\n"))
 		info->tmp_type = MLX4_PORT_TYPE_ETH;
+	else if (!strcmp(buf, "auto\n"))
+		info->tmp_type = MLX4_PORT_TYPE_AUTO;
 	else {
 		mlx4_err(mdev, "%s is not supported port type\n", buf);
 		return -EINVAL;
 	}
 
+	mlx4_stop_sense(mdev);
 	mutex_lock(&priv->port_mutex);
-	for (i = 0; i < mdev->caps.num_ports; i++)
+	/* Possible type is always the one that was delivered */
+	mdev->caps.possible_type[info->port] = info->tmp_type;
+
+	for (i = 0; i < mdev->caps.num_ports; i++) {
 		types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
-					mdev->caps.port_type[i+1];
+					mdev->caps.possible_type[i+1];
+		if (types[i] == MLX4_PORT_TYPE_AUTO)
+			types[i] = mdev->caps.port_type[i+1];
+	}
 
-	err = mlx4_check_port_params(mdev, types);
+	if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
+		for (i = 1; i <= mdev->caps.num_ports; i++) {
+			if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
+				mdev->caps.possible_type[i] = mdev->caps.port_type[i];
+				err = -EINVAL;
+			}
+		}
+	}
+	if (err) {
+		mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
+			       "Set only 'eth' or 'ib' for both ports "
+			       "(should be the same)\n");
+		goto out;
+	}
+
+	mlx4_do_sense_ports(mdev, new_types, types);
+
+	err = mlx4_check_port_params(mdev, new_types);
 	if (err)
 		goto out;
 
-	for (i = 1; i <= mdev->caps.num_ports; i++)
-		priv->port[i].tmp_type = 0;
+	/* We are about to apply the changes after the configuration
+	 * was verified, no need to remember the temporary types
+	 * any more */
+	for (i = 0; i < mdev->caps.num_ports; i++)
+		priv->port[i + 1].tmp_type = 0;
 
-	err = mlx4_change_port_types(mdev, types);
+	err = mlx4_change_port_types(mdev, new_types);
 
 out:
+	mlx4_start_sense(mdev);
 	mutex_unlock(&priv->port_mutex);
 	return err ? err : count;
 }
@@ -1117,6 +1161,9 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (err)
 		goto err_port;
 
+	mlx4_sense_init(dev);
+	mlx4_start_sense(dev);
+
 	pci_set_drvdata(pdev, dev);
 
 	return 0;
@@ -1182,6 +1229,7 @@ static void mlx4_remove_one(struct pci_dev *pdev)
 	int p;
 
 	if (dev) {
+		mlx4_stop_sense(dev);
 		mlx4_unregister_device(dev);
 
 		for (p = 1; p <= dev->caps.num_ports; p++) {
@@ -1266,9 +1314,11 @@ static int __init mlx4_init(void)
 	if (mlx4_verify_params())
 		return -EINVAL;
 
-	ret = mlx4_catas_init();
-	if (ret)
-		return ret;
+	mlx4_catas_init();
+
+	mlx4_wq = create_singlethread_workqueue("mlx4");
+	if (!mlx4_wq)
+		return -ENOMEM;
 
 	ret = pci_register_driver(&mlx4_driver);
 	return ret < 0 ? ret : 0;
@@ -1277,7 +1327,7 @@ static int __init mlx4_init(void)
 static void __exit mlx4_cleanup(void)
 {
 	pci_unregister_driver(&mlx4_driver);
-	mlx4_catas_cleanup();
+	destroy_workqueue(mlx4_wq);
 }
 
 module_init(mlx4_init);
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index e0213bad61c7..5bd79c2b184f 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -40,6 +40,7 @@
 #include <linux/mutex.h>
 #include <linux/radix-tree.h>
 #include <linux/timer.h>
+#include <linux/workqueue.h>
 
 #include <linux/mlx4/device.h>
 #include <linux/mlx4/driver.h>
@@ -276,6 +277,13 @@ struct mlx4_port_info {
 	struct mlx4_vlan_table	vlan_table;
 };
 
+struct mlx4_sense {
+	struct mlx4_dev		*dev;
+	u8			do_sense_port[MLX4_MAX_PORTS + 1];
+	u8			sense_allowed[MLX4_MAX_PORTS + 1];
+	struct delayed_work	sense_poll;
+};
+
 struct mlx4_priv {
 	struct mlx4_dev		dev;
 
@@ -305,6 +313,7 @@ struct mlx4_priv {
 	struct mlx4_uar		driver_uar;
 	void __iomem	       *kar;
 	struct mlx4_port_info	port[MLX4_MAX_PORTS + 1];
+	struct mlx4_sense       sense;
 	struct mutex		port_mutex;
 };
 
@@ -313,6 +322,10 @@ static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
 	return container_of(dev, struct mlx4_priv, dev);
 }
 
+#define MLX4_SENSE_RANGE	(HZ * 3)
+
+extern struct workqueue_struct *mlx4_wq;
+
 u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
 void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
 u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
@@ -346,8 +359,7 @@ void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
 
 void mlx4_start_catas_poll(struct mlx4_dev *dev);
 void mlx4_stop_catas_poll(struct mlx4_dev *dev);
-int mlx4_catas_init(void);
-void mlx4_catas_cleanup(void);
+void mlx4_catas_init(void);
 int mlx4_restart_one(struct pci_dev *pdev);
 int mlx4_register_device(struct mlx4_dev *dev);
 void mlx4_unregister_device(struct mlx4_dev *dev);
@@ -379,6 +391,17 @@ void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
 
 void mlx4_handle_catas_err(struct mlx4_dev *dev);
 
+void mlx4_do_sense_ports(struct mlx4_dev *dev,
+			 enum mlx4_port_type *stype,
+			 enum mlx4_port_type *defaults);
+void mlx4_start_sense(struct mlx4_dev *dev);
+void mlx4_stop_sense(struct mlx4_dev *dev);
+void mlx4_sense_init(struct mlx4_dev *dev);
+int mlx4_check_port_params(struct mlx4_dev *dev,
+			   enum mlx4_port_type *port_type);
+int mlx4_change_port_types(struct mlx4_dev *dev,
+			   enum mlx4_port_type *port_types);
+
 void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table);
 void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
 
diff --git a/drivers/net/mlx4/sense.c b/drivers/net/mlx4/sense.c
new file mode 100644
index 000000000000..6d5089ecb5af
--- /dev/null
+++ b/drivers/net/mlx4/sense.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS
+ * 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 <linux/errno.h>
+#include <linux/if_ether.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+
+static int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
+			   enum mlx4_port_type *type)
+{
+	u64 out_param;
+	int err = 0;
+
+	err = mlx4_cmd_imm(dev, 0, &out_param, port, 0,
+			   MLX4_CMD_SENSE_PORT, MLX4_CMD_TIME_CLASS_B);
+	if (err) {
+		mlx4_err(dev, "Sense command failed for port: %d\n", port);
+		return err;
+	}
+
+	if (out_param > 2) {
+		mlx4_err(dev, "Sense returned illegal value: 0x%llx\n", out_param);
+		return EINVAL;
+	}
+
+	*type = out_param;
+	return 0;
+}
+
+void mlx4_do_sense_ports(struct mlx4_dev *dev,
+			 enum mlx4_port_type *stype,
+			 enum mlx4_port_type *defaults)
+{
+	struct mlx4_sense *sense = &mlx4_priv(dev)->sense;
+	int err;
+	int i;
+
+	for (i = 1; i <= dev->caps.num_ports; i++) {
+		stype[i - 1] = 0;
+		if (sense->do_sense_port[i] && sense->sense_allowed[i] &&
+		    dev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
+			err = mlx4_SENSE_PORT(dev, i, &stype[i - 1]);
+			if (err)
+				stype[i - 1] = defaults[i - 1];
+		} else
+			stype[i - 1] = defaults[i - 1];
+	}
+
+	/*
+	 * Adjust port configuration:
+	 * If port 1 sensed nothing and port 2 is IB, set both as IB
+	 * If port 2 sensed nothing and port 1 is Eth, set both as Eth
+	 */
+	if (stype[0] == MLX4_PORT_TYPE_ETH) {
+		for (i = 1; i < dev->caps.num_ports; i++)
+			stype[i] = stype[i] ? stype[i] : MLX4_PORT_TYPE_ETH;
+	}
+	if (stype[dev->caps.num_ports - 1] == MLX4_PORT_TYPE_IB) {
+		for (i = 0; i < dev->caps.num_ports - 1; i++)
+			stype[i] = stype[i] ? stype[i] : MLX4_PORT_TYPE_IB;
+	}
+
+	/*
+	 * If sensed nothing, remain in current configuration.
+	 */
+	for (i = 0; i < dev->caps.num_ports; i++)
+		stype[i] = stype[i] ? stype[i] : defaults[i];
+
+}
+
+static void mlx4_sense_port(struct work_struct *work)
+{
+	struct delayed_work *delay = container_of(work, struct delayed_work, work);
+	struct mlx4_sense *sense = container_of(delay, struct mlx4_sense,
+						sense_poll);
+	struct mlx4_dev *dev = sense->dev;
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	enum mlx4_port_type stype[MLX4_MAX_PORTS];
+
+	mutex_lock(&priv->port_mutex);
+	mlx4_do_sense_ports(dev, stype, &dev->caps.port_type[1]);
+
+	if (mlx4_check_port_params(dev, stype))
+		goto sense_again;
+
+	if (mlx4_change_port_types(dev, stype))
+		mlx4_err(dev, "Failed to change port_types\n");
+
+sense_again:
+	mutex_unlock(&priv->port_mutex);
+	queue_delayed_work(mlx4_wq , &sense->sense_poll,
+			   round_jiffies_relative(MLX4_SENSE_RANGE));
+}
+
+void mlx4_start_sense(struct mlx4_dev *dev)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_sense *sense = &priv->sense;
+
+	if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP))
+		return;
+
+	queue_delayed_work(mlx4_wq , &sense->sense_poll,
+			   round_jiffies_relative(MLX4_SENSE_RANGE));
+}
+
+void mlx4_stop_sense(struct mlx4_dev *dev)
+{
+	cancel_delayed_work_sync(&mlx4_priv(dev)->sense.sense_poll);
+}
+
+void  mlx4_sense_init(struct mlx4_dev *dev)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_sense *sense = &priv->sense;
+	int port;
+
+	sense->dev = dev;
+	for (port = 1; port <= dev->caps.num_ports; port++)
+		sense->do_sense_port[port] = 1;
+
+	INIT_DELAYED_WORK_DEFERRABLE(&sense->sense_poll, mlx4_sense_port);
+}
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index cf9c679ab38b..0f82293a82ed 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -55,6 +55,7 @@ enum {
 	MLX4_CMD_CLOSE_PORT	 = 0xa,
 	MLX4_CMD_QUERY_HCA	 = 0xb,
 	MLX4_CMD_QUERY_PORT	 = 0x43,
+	MLX4_CMD_SENSE_PORT	 = 0x4d,
 	MLX4_CMD_SET_PORT	 = 0xc,
 	MLX4_CMD_ACCESS_DDR	 = 0x2e,
 	MLX4_CMD_MAP_ICM	 = 0xffa,
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 8f659cc29960..3aff8a6a389e 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -155,8 +155,9 @@ enum mlx4_qp_region {
 };
 
 enum mlx4_port_type {
-	MLX4_PORT_TYPE_IB	= 1 << 0,
-	MLX4_PORT_TYPE_ETH	= 1 << 1,
+	MLX4_PORT_TYPE_IB	= 1,
+	MLX4_PORT_TYPE_ETH	= 2,
+	MLX4_PORT_TYPE_AUTO	= 3
 };
 
 enum mlx4_special_vlan_idx {
@@ -237,6 +238,7 @@ struct mlx4_caps {
 	enum mlx4_port_type	port_type[MLX4_MAX_PORTS + 1];
 	u8			supported_type[MLX4_MAX_PORTS + 1];
 	u32			port_mask;
+	enum mlx4_port_type	possible_type[MLX4_MAX_PORTS + 1];
 };
 
 struct mlx4_buf_list {
-- 
cgit v1.2.3


From 2e1ab634bf013792d8803ec57c7a428a76f50028 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Thu, 19 Mar 2009 23:49:41 -0700
Subject: rtnetlink: add new value for DHCP added routes

To improve manageability, it would be good to be able to disambiguate routes
added by administrator from those added by DHCP client.  The only necessary
kernel change is to add value to rtnetlink include file so iproute2 utility
can use it.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/rtnetlink.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 35a07c830f79..ba3254ecf7fb 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -217,6 +217,7 @@ enum
 #define RTPROT_DNROUTED	13	/* DECnet routing daemon */
 #define RTPROT_XORP	14	/* XORP */
 #define RTPROT_NTK	15	/* Netsukuku */
+#define RTPROT_DHCP	16      /* DHCP client */
 
 /* rtm_scope
 
-- 
cgit v1.2.3


From 5e140dfc1fe87eae27846f193086724806b33c7d Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Fri, 20 Mar 2009 01:33:32 -0700
Subject: net: reorder struct Qdisc for better SMP performance

dev_queue_xmit() needs to dirty fields "state", "q", "bstats" and "qstats"

On x86_64 arch, they currently span three cache lines, involving more
cache line ping pongs than necessary, making longer holding of queue spinlock.

We can reduce this to one cache line, by grouping all read-mostly fields
at the beginning of structure. (Or should I say, all highly modified fields
at the end :) )

Before patch :

offsetof(struct Qdisc, state)=0x38
offsetof(struct Qdisc, q)=0x48
offsetof(struct Qdisc, bstats)=0x80
offsetof(struct Qdisc, qstats)=0x90
sizeof(struct Qdisc)=0xc8

After patch :

offsetof(struct Qdisc, state)=0x80
offsetof(struct Qdisc, q)=0x88
offsetof(struct Qdisc, bstats)=0xa0
offsetof(struct Qdisc, qstats)=0xac
sizeof(struct Qdisc)=0xc0

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/gen_stats.h |  2 +-
 include/net/sch_generic.h | 21 ++++++++++++---------
 2 files changed, 13 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/include/linux/gen_stats.h b/include/linux/gen_stats.h
index 13f4e74609ac..0ffa41df0ee8 100644
--- a/include/linux/gen_stats.h
+++ b/include/linux/gen_stats.h
@@ -22,7 +22,7 @@ struct gnet_stats_basic
 {
 	__u64	bytes;
 	__u32	packets;
-};
+} __attribute__ ((packed));
 
 /**
  * struct gnet_stats_rate_est - rate estimator
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 3d78a4d22460..964ffa0d8815 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -49,18 +49,10 @@ struct Qdisc
 	int			padded;
 	struct Qdisc_ops	*ops;
 	struct qdisc_size_table	*stab;
+	struct list_head	list;
 	u32			handle;
 	u32			parent;
 	atomic_t		refcnt;
-	unsigned long		state;
-	struct sk_buff		*gso_skb;
-	struct sk_buff_head	q;
-	struct netdev_queue	*dev_queue;
-	struct Qdisc		*next_sched;
-	struct list_head	list;
-
-	struct gnet_stats_basic	bstats;
-	struct gnet_stats_queue	qstats;
 	struct gnet_stats_rate_est	rate_est;
 	int			(*reshape_fail)(struct sk_buff *skb,
 					struct Qdisc *q);
@@ -71,6 +63,17 @@ struct Qdisc
 	 * and it will live until better solution will be invented.
 	 */
 	struct Qdisc		*__parent;
+	struct netdev_queue	*dev_queue;
+	struct Qdisc		*next_sched;
+
+	struct sk_buff		*gso_skb;
+	/*
+	 * For performance sake on SMP, we put highly modified fields at the end
+	 */
+	unsigned long		state;
+	struct sk_buff_head	q;
+	struct gnet_stats_basic bstats;
+	struct gnet_stats_queue	qstats;
 };
 
 struct Qdisc_class_ops
-- 
cgit v1.2.3


From 04ec5cfcfd9a69c16fc8adb9d7f4836eedb84e53 Mon Sep 17 00:00:00 2001
From: Richard Kennedy <richard@rsk.demon.co.uk>
Date: Sat, 21 Mar 2009 13:29:05 -0700
Subject: ipv6: reorder struct inet6_ifaddr to remove padding on 64 bit builds

reorder struct inet6_ifaddr to remove padding on 64 bit builds

remove 8 bytes of padding so inet6_ifaddr becomes 192 bytes & fits into
a smaller slab.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/if_inet6.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index c8effa4b1feb..38b78132019b 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -39,8 +39,6 @@ struct inet6_ifaddr
 	
 	__u32			valid_lft;
 	__u32			prefered_lft;
-	unsigned long		cstamp;	/* created timestamp */
-	unsigned long		tstamp; /* updated timestamp */
 	atomic_t		refcnt;
 	spinlock_t		lock;
 
@@ -49,6 +47,9 @@ struct inet6_ifaddr
 
 	__u16			scope;
 
+	unsigned long		cstamp;	/* created timestamp */
+	unsigned long		tstamp; /* updated timestamp */
+
 	struct timer_list	timer;
 
 	struct inet6_dev	*idev;
-- 
cgit v1.2.3


From e2fc4d19292ef2eb208f76976ddc3320cc5839b6 Mon Sep 17 00:00:00 2001
From: Maciej Sosnowski <maciej.sosnowski@intel.com>
Date: Sat, 21 Mar 2009 13:31:23 -0700
Subject: dca: add missing copyright/license headers

In two dca files copyright and license headers are missing.
This patch adds them there.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/dca/dca-sysfs.c | 21 +++++++++++++++++++++
 include/linux/dca.h     | 20 ++++++++++++++++++++
 2 files changed, 41 insertions(+)

(limited to 'include')

diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c
index bb538b9690e0..ee916c9857ee 100644
--- a/drivers/dca/dca-sysfs.c
+++ b/drivers/dca/dca-sysfs.c
@@ -1,3 +1,24 @@
+/*
+ * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called COPYING.
+ */
+
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
 #include <linux/device.h>
diff --git a/include/linux/dca.h b/include/linux/dca.h
index b00a753eda53..9c20c7e87d0a 100644
--- a/include/linux/dca.h
+++ b/include/linux/dca.h
@@ -1,3 +1,23 @@
+/*
+ * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called COPYING.
+ */
 #ifndef DCA_H
 #define DCA_H
 /* DCA Provider API */
-- 
cgit v1.2.3


From 9247744e5eaa29aecee5342a0c8694187a6aadcd Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Sat, 21 Mar 2009 13:39:26 -0700
Subject: skb: expose and constify hash primitives

Some minor changes to queue hashing:
 1. Use const on accessor functions
 2. Export skb_tx_hash for use in drivers (see ixgbe)

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 9 ++++++---
 net/core/dev.c         | 3 ++-
 2 files changed, 8 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1fbab2ae613c..bb1981fd60f3 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1969,7 +1969,7 @@ static inline void skb_set_queue_mapping(struct sk_buff *skb, u16 queue_mapping)
 	skb->queue_mapping = queue_mapping;
 }
 
-static inline u16 skb_get_queue_mapping(struct sk_buff *skb)
+static inline u16 skb_get_queue_mapping(const struct sk_buff *skb)
 {
 	return skb->queue_mapping;
 }
@@ -1984,16 +1984,19 @@ static inline void skb_record_rx_queue(struct sk_buff *skb, u16 rx_queue)
 	skb->queue_mapping = rx_queue + 1;
 }
 
-static inline u16 skb_get_rx_queue(struct sk_buff *skb)
+static inline u16 skb_get_rx_queue(const struct sk_buff *skb)
 {
 	return skb->queue_mapping - 1;
 }
 
-static inline bool skb_rx_queue_recorded(struct sk_buff *skb)
+static inline bool skb_rx_queue_recorded(const struct sk_buff *skb)
 {
 	return (skb->queue_mapping != 0);
 }
 
+extern u16 skb_tx_hash(const struct net_device *dev,
+		       const struct sk_buff *skb);
+
 #ifdef CONFIG_XFRM
 static inline struct sec_path *skb_sec_path(struct sk_buff *skb)
 {
diff --git a/net/core/dev.c b/net/core/dev.c
index ca212acd3348..fdb9973b82a6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1725,7 +1725,7 @@ out_kfree_skb:
 
 static u32 skb_tx_hashrnd;
 
-static u16 skb_tx_hash(struct net_device *dev, struct sk_buff *skb)
+u16 skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb)
 {
 	u32 hash;
 
@@ -1740,6 +1740,7 @@ static u16 skb_tx_hash(struct net_device *dev, struct sk_buff *skb)
 
 	return (u16) (((u64) hash * dev->real_num_tx_queues) >> 32);
 }
+EXPORT_SYMBOL(skb_tx_hash);
 
 static struct netdev_queue *dev_pick_tx(struct net_device *dev,
 					struct sk_buff *skb)
-- 
cgit v1.2.3


From 8d2f9e81169b8120cf2b4872930ae491b17c27b8 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Sat, 21 Mar 2009 13:41:09 -0700
Subject: sctp: Clean up TEST_FRAME hacks.

Remove 2 TEST_FRAME hacks that are no longer needed.  These allowed
sctp regression tests to compile before, but are no longer needed.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/sctp.h | 7 -------
 net/sctp/output.c       | 5 +----
 2 files changed, 1 insertion(+), 11 deletions(-)

(limited to 'include')

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 9e226be3be69..9f80a7668289 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -62,13 +62,6 @@
  *   and will continue to evolve.
  */
 
-
-
-#ifdef TEST_FRAME
-#undef CONFIG_SCTP_DBG_OBJCNT
-#undef CONFIG_SYSCTL
-#endif /* TEST_FRAME */
-
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/in.h>
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 07d58903a746..7d08f522ec84 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -49,13 +49,10 @@
 #include <linux/ipv6.h>
 #include <linux/init.h>
 #include <net/inet_ecn.h>
+#include <net/ip.h>
 #include <net/icmp.h>
 #include <net/net_namespace.h>
 
-#ifndef TEST_FRAME
-#include <net/tcp.h>
-#endif /* TEST_FRAME (not defined) */
-
 #include <linux/socket.h> /* for sa_family_t */
 #include <net/sock.h>
 
-- 
cgit v1.2.3


From 7ca98fa234afa096ec2a5e7195ad2d32555cca86 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Fri, 20 Mar 2009 05:43:14 +0000
Subject: snap: use const for descriptor

Protocols should be able to use constant value for the descriptor.
Minor whitespace cleanup as well

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/psnap.h | 6 +++++-
 net/802/psnap.c     | 6 +++---
 2 files changed, 8 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/net/psnap.h b/include/net/psnap.h
index b2e01cc3fc8a..fe456c295b04 100644
--- a/include/net/psnap.h
+++ b/include/net/psnap.h
@@ -1,7 +1,11 @@
 #ifndef _NET_PSNAP_H
 #define _NET_PSNAP_H
 
-extern struct datalink_proto *register_snap_client(unsigned char *desc, int (*rcvfunc)(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *orig_dev));
+extern struct datalink_proto *
+register_snap_client(const unsigned char *desc,
+		     int (*rcvfunc)(struct sk_buff *, struct net_device *,
+				    struct packet_type *,
+				    struct net_device *orig_dev));
 extern void unregister_snap_client(struct datalink_proto *proto);
 
 #endif
diff --git a/net/802/psnap.c b/net/802/psnap.c
index bdbffa3cb043..6fea0750662b 100644
--- a/net/802/psnap.c
+++ b/net/802/psnap.c
@@ -29,7 +29,7 @@ static struct llc_sap *snap_sap;
 /*
  *	Find a snap client by matching the 5 bytes.
  */
-static struct datalink_proto *find_snap_client(unsigned char *desc)
+static struct datalink_proto *find_snap_client(const unsigned char *desc)
 {
 	struct datalink_proto *proto = NULL, *p;
 
@@ -122,7 +122,7 @@ module_exit(snap_exit);
 /*
  *	Register SNAP clients. We don't yet use this for IP.
  */
-struct datalink_proto *register_snap_client(unsigned char *desc,
+struct datalink_proto *register_snap_client(const unsigned char *desc,
 					    int (*rcvfunc)(struct sk_buff *,
 							   struct net_device *,
 							   struct packet_type *,
@@ -137,7 +137,7 @@ struct datalink_proto *register_snap_client(unsigned char *desc,
 
 	proto = kmalloc(sizeof(*proto), GFP_ATOMIC);
 	if (proto) {
-		memcpy(proto->type, desc,5);
+		memcpy(proto->type, desc, 5);
 		proto->rcvfunc		= rcvfunc;
 		proto->header_length	= 5 + 3; /* snap + 802.2 */
 		proto->request		= snap_request;
-- 
cgit v1.2.3


From e84665c9cb4db963393fafad6fefe5efdd7e4a09 Mon Sep 17 00:00:00 2001
From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Fri, 20 Mar 2009 09:52:09 +0000
Subject: dsa: add switch chip cascading support

The initial version of the DSA driver only supported a single switch
chip per network interface, while DSA-capable switch chips can be
interconnected to form a tree of switch chips.  This patch adds support
for multiple switch chips on a network interface.

An example topology for a 16-port device with an embedded CPU is as
follows:

	+-----+          +--------+       +--------+
	|     |eth0    10| switch |9    10| switch |
	| CPU +----------+        +-------+        |
	|     |          | chip 0 |       | chip 1 |
	+-----+          +---++---+       +---++---+
	                     ||               ||
	                     ||               ||
	                     ||1000baseT      ||1000baseT
	                     ||ports 1-8      ||ports 9-16

This requires a couple of interdependent changes in the DSA layer:

- The dsa platform driver data needs to be extended: there is still
  only one netdevice per DSA driver instance (eth0 in the example
  above), but each of the switch chips in the tree needs its own
  mii_bus device pointer, MII management bus address, and port name
  array. (include/net/dsa.h)  The existing in-tree dsa users need
  some small changes to deal with this. (arch/arm)

- The DSA and Ethertype DSA tagging modules need to be extended to
  use the DSA device ID field on receive and demultiplex the packet
  accordingly, and fill in the DSA device ID field on transmit
  according to which switch chip the packet is heading to.
  (net/dsa/tag_{dsa,edsa}.c)

- The concept of "CPU port", which is the switch chip port that the
  CPU is connected to (port 10 on switch chip 0 in the example), needs
  to be extended with the concept of "upstream port", which is the
  port on the switch chip that will bring us one hop closer to the CPU
  (port 10 for both switch chips in the example above).

- The dsa platform data needs to specify which ports on which switch
  chips are links to other switch chips, so that we can enable DSA
  tagging mode on them.  (For inter-switch links, we always use
  non-EtherType DSA tagging, since it has lower overhead.  The CPU
  link uses dsa or edsa tagging depending on what the 'root' switch
  chip supports.)  This is done by specifying "dsa" for the given
  port in the port array.

- The dsa platform data needs to be extended with information on via
  which port to reach any given switch chip from any given switch chip.
  This info is specified via the per-switch chip data struct ->rtable[]
  array, which gives the nexthop ports for each of the other switches
  in the tree.

For the example topology above, the dsa platform data would look
something like this:

	static struct dsa_chip_data sw[2] = {
		{
			.mii_bus	= &foo,
			.sw_addr	= 1,
			.port_names[0]	= "p1",
			.port_names[1]	= "p2",
			.port_names[2]	= "p3",
			.port_names[3]	= "p4",
			.port_names[4]	= "p5",
			.port_names[5]	= "p6",
			.port_names[6]	= "p7",
			.port_names[7]	= "p8",
			.port_names[9]	= "dsa",
			.port_names[10]	= "cpu",
			.rtable		= (s8 []){ -1, 9, },
		}, {
			.mii_bus	= &foo,
			.sw_addr	= 2,
			.port_names[0]	= "p9",
			.port_names[1]	= "p10",
			.port_names[2]	= "p11",
			.port_names[3]	= "p12",
			.port_names[4]	= "p13",
			.port_names[5]	= "p14",
			.port_names[6]	= "p15",
			.port_names[7]	= "p16",
			.port_names[10]	= "dsa",
			.rtable		= (s8 []){ 10, -1, },
		},
	},

	static struct dsa_platform_data pd = {
		.netdev		= &foo,
		.nr_switches	= 2,
		.sw		= sw,
	};

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Tested-by: Gary Thomas <gary@mlbassoc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/arm/mach-kirkwood/common.c              |   5 +-
 arch/arm/mach-kirkwood/rd88f6281-setup.c     |  13 +-
 arch/arm/mach-orion5x/common.c               |   5 +-
 arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c |   9 +-
 arch/arm/mach-orion5x/rd88f5181l-ge-setup.c  |  10 +-
 arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c |  10 +-
 arch/arm/mach-orion5x/wrt350n-v2-setup.c     |   9 +-
 include/net/dsa.h                            |  42 +++++--
 net/dsa/dsa.c                                | 177 +++++++++++++++++----------
 net/dsa/dsa_priv.h                           |  97 ++++++++++++---
 net/dsa/mv88e6060.c                          |  12 +-
 net/dsa/mv88e6123_61_65.c                    |  92 +++++++++-----
 net/dsa/mv88e6131.c                          |  78 +++++++-----
 net/dsa/slave.c                              |  25 ++--
 net/dsa/tag_dsa.c                            |  30 +++--
 net/dsa/tag_edsa.c                           |  30 +++--
 net/dsa/tag_trailer.c                        |  10 +-
 17 files changed, 443 insertions(+), 211 deletions(-)

(limited to 'include')

diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index b3404b7775b3..0d2074f51a59 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -231,14 +231,17 @@ static struct platform_device kirkwood_switch_device = {
 
 void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq)
 {
+	int i;
+
 	if (irq != NO_IRQ) {
 		kirkwood_switch_resources[0].start = irq;
 		kirkwood_switch_resources[0].end = irq;
 		kirkwood_switch_device.num_resources = 1;
 	}
 
-	d->mii_bus = &kirkwood_ge00_shared.dev;
 	d->netdev = &kirkwood_ge00.dev;
+	for (i = 0; i < d->nr_chips; i++)
+		d->chip[i].mii_bus = &kirkwood_ge00_shared.dev;
 	kirkwood_switch_device.dev.platform_data = d;
 
 	platform_device_register(&kirkwood_switch_device);
diff --git a/arch/arm/mach-kirkwood/rd88f6281-setup.c b/arch/arm/mach-kirkwood/rd88f6281-setup.c
index 9a0e905d10cd..e1c0516c4df3 100644
--- a/arch/arm/mach-kirkwood/rd88f6281-setup.c
+++ b/arch/arm/mach-kirkwood/rd88f6281-setup.c
@@ -75,7 +75,7 @@ static struct mv643xx_eth_platform_data rd88f6281_ge00_data = {
 	.duplex		= DUPLEX_FULL,
 };
 
-static struct dsa_platform_data rd88f6281_switch_data = {
+static struct dsa_chip_data rd88f6281_switch_chip_data = {
 	.port_names[0]	= "lan1",
 	.port_names[1]	= "lan2",
 	.port_names[2]	= "lan3",
@@ -83,6 +83,11 @@ static struct dsa_platform_data rd88f6281_switch_data = {
 	.port_names[5]	= "cpu",
 };
 
+static struct dsa_platform_data rd88f6281_switch_plat_data = {
+	.nr_chips	= 1,
+	.chip		= &rd88f6281_switch_chip_data,
+};
+
 static struct mv643xx_eth_platform_data rd88f6281_ge01_data = {
 	.phy_addr	= MV643XX_ETH_PHY_ADDR(11),
 };
@@ -105,12 +110,12 @@ static void __init rd88f6281_init(void)
 	kirkwood_ge00_init(&rd88f6281_ge00_data);
 	kirkwood_pcie_id(&dev, &rev);
 	if (rev == MV88F6281_REV_A0) {
-		rd88f6281_switch_data.sw_addr = 10;
+		rd88f6281_switch_chip_data.sw_addr = 10;
 		kirkwood_ge01_init(&rd88f6281_ge01_data);
 	} else {
-		rd88f6281_switch_data.port_names[4] = "wan";
+		rd88f6281_switch_chip_data.port_names[4] = "wan";
 	}
-	kirkwood_ge00_switch_init(&rd88f6281_switch_data, NO_IRQ);
+	kirkwood_ge00_switch_init(&rd88f6281_switch_plat_data, NO_IRQ);
 
 	kirkwood_rtc_init();
 	kirkwood_sata_init(&rd88f6281_sata_data);
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 0a623379789f..a4ecf625981e 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -219,14 +219,17 @@ static struct platform_device orion5x_switch_device = {
 
 void __init orion5x_eth_switch_init(struct dsa_platform_data *d, int irq)
 {
+	int i;
+
 	if (irq != NO_IRQ) {
 		orion5x_switch_resources[0].start = irq;
 		orion5x_switch_resources[0].end = irq;
 		orion5x_switch_device.num_resources = 1;
 	}
 
-	d->mii_bus = &orion5x_eth_shared.dev;
 	d->netdev = &orion5x_eth.dev;
+	for (i = 0; i < d->nr_chips; i++)
+		d->chip[i].mii_bus = &orion5x_eth_shared.dev;
 	orion5x_switch_device.dev.platform_data = d;
 
 	platform_device_register(&orion5x_switch_device);
diff --git a/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c b/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c
index 15f53235ee30..9c1ca41730ba 100644
--- a/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c
+++ b/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c
@@ -94,7 +94,7 @@ static struct mv643xx_eth_platform_data rd88f5181l_fxo_eth_data = {
 	.duplex		= DUPLEX_FULL,
 };
 
-static struct dsa_platform_data rd88f5181l_fxo_switch_data = {
+static struct dsa_chip_data rd88f5181l_fxo_switch_chip_data = {
 	.port_names[0]	= "lan2",
 	.port_names[1]	= "lan1",
 	.port_names[2]	= "wan",
@@ -103,6 +103,11 @@ static struct dsa_platform_data rd88f5181l_fxo_switch_data = {
 	.port_names[7]	= "lan3",
 };
 
+static struct dsa_platform_data rd88f5181l_fxo_switch_plat_data = {
+	.nr_chips	= 1,
+	.chip		= &rd88f5181l_fxo_switch_chip_data,
+};
+
 static void __init rd88f5181l_fxo_init(void)
 {
 	/*
@@ -117,7 +122,7 @@ static void __init rd88f5181l_fxo_init(void)
 	 */
 	orion5x_ehci0_init();
 	orion5x_eth_init(&rd88f5181l_fxo_eth_data);
-	orion5x_eth_switch_init(&rd88f5181l_fxo_switch_data, NO_IRQ);
+	orion5x_eth_switch_init(&rd88f5181l_fxo_switch_plat_data, NO_IRQ);
 	orion5x_uart0_init();
 
 	orion5x_setup_dev_boot_win(RD88F5181L_FXO_NOR_BOOT_BASE,
diff --git a/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c b/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c
index 8ad3934399d4..ee1399ff0ced 100644
--- a/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c
+++ b/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c
@@ -95,7 +95,7 @@ static struct mv643xx_eth_platform_data rd88f5181l_ge_eth_data = {
 	.duplex		= DUPLEX_FULL,
 };
 
-static struct dsa_platform_data rd88f5181l_ge_switch_data = {
+static struct dsa_chip_data rd88f5181l_ge_switch_chip_data = {
 	.port_names[0]	= "lan2",
 	.port_names[1]	= "lan1",
 	.port_names[2]	= "wan",
@@ -104,6 +104,11 @@ static struct dsa_platform_data rd88f5181l_ge_switch_data = {
 	.port_names[7]	= "lan3",
 };
 
+static struct dsa_platform_data rd88f5181l_ge_switch_plat_data = {
+	.nr_chips	= 1,
+	.chip		= &rd88f5181l_ge_switch_chip_data,
+};
+
 static struct i2c_board_info __initdata rd88f5181l_ge_i2c_rtc = {
 	I2C_BOARD_INFO("ds1338", 0x68),
 };
@@ -122,7 +127,8 @@ static void __init rd88f5181l_ge_init(void)
 	 */
 	orion5x_ehci0_init();
 	orion5x_eth_init(&rd88f5181l_ge_eth_data);
-	orion5x_eth_switch_init(&rd88f5181l_ge_switch_data, gpio_to_irq(8));
+	orion5x_eth_switch_init(&rd88f5181l_ge_switch_plat_data,
+				gpio_to_irq(8));
 	orion5x_i2c_init();
 	orion5x_uart0_init();
 
diff --git a/arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c b/arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c
index 262e25e4dace..7737cf9a8f50 100644
--- a/arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c
+++ b/arch/arm/mach-orion5x/rd88f6183ap-ge-setup.c
@@ -35,7 +35,7 @@ static struct mv643xx_eth_platform_data rd88f6183ap_ge_eth_data = {
 	.duplex		= DUPLEX_FULL,
 };
 
-static struct dsa_platform_data rd88f6183ap_ge_switch_data = {
+static struct dsa_chip_data rd88f6183ap_ge_switch_chip_data = {
 	.port_names[0]	= "lan1",
 	.port_names[1]	= "lan2",
 	.port_names[2]	= "lan3",
@@ -44,6 +44,11 @@ static struct dsa_platform_data rd88f6183ap_ge_switch_data = {
 	.port_names[5]	= "cpu",
 };
 
+static struct dsa_platform_data rd88f6183ap_ge_switch_plat_data = {
+	.nr_chips	= 1,
+	.chip		= &rd88f6183ap_ge_switch_chip_data,
+};
+
 static struct mtd_partition rd88f6183ap_ge_partitions[] = {
 	{
 		.name	= "kernel",
@@ -89,7 +94,8 @@ static void __init rd88f6183ap_ge_init(void)
 	 */
 	orion5x_ehci0_init();
 	orion5x_eth_init(&rd88f6183ap_ge_eth_data);
-	orion5x_eth_switch_init(&rd88f6183ap_ge_switch_data, gpio_to_irq(3));
+	orion5x_eth_switch_init(&rd88f6183ap_ge_switch_plat_data,
+				gpio_to_irq(3));
 	spi_register_board_info(rd88f6183ap_ge_spi_slave_info,
 				ARRAY_SIZE(rd88f6183ap_ge_spi_slave_info));
 	orion5x_spi_init();
diff --git a/arch/arm/mach-orion5x/wrt350n-v2-setup.c b/arch/arm/mach-orion5x/wrt350n-v2-setup.c
index cc8f89200865..1b4ad9d5e2eb 100644
--- a/arch/arm/mach-orion5x/wrt350n-v2-setup.c
+++ b/arch/arm/mach-orion5x/wrt350n-v2-setup.c
@@ -106,7 +106,7 @@ static struct mv643xx_eth_platform_data wrt350n_v2_eth_data = {
 	.duplex		= DUPLEX_FULL,
 };
 
-static struct dsa_platform_data wrt350n_v2_switch_data = {
+static struct dsa_chip_data wrt350n_v2_switch_chip_data = {
 	.port_names[0]	= "lan2",
 	.port_names[1]	= "lan1",
 	.port_names[2]	= "wan",
@@ -115,6 +115,11 @@ static struct dsa_platform_data wrt350n_v2_switch_data = {
 	.port_names[7]	= "lan4",
 };
 
+static struct dsa_platform_data wrt350n_v2_switch_plat_data = {
+	.nr_chips	= 1,
+	.chip		= &wrt350n_v2_switch_chip_data,
+};
+
 static void __init wrt350n_v2_init(void)
 {
 	/*
@@ -129,7 +134,7 @@ static void __init wrt350n_v2_init(void)
 	 */
 	orion5x_ehci0_init();
 	orion5x_eth_init(&wrt350n_v2_eth_data);
-	orion5x_eth_switch_init(&wrt350n_v2_switch_data, NO_IRQ);
+	orion5x_eth_switch_init(&wrt350n_v2_switch_plat_data, NO_IRQ);
 	orion5x_uart0_init();
 
 	orion5x_setup_dev_boot_win(WRT350N_V2_NOR_BOOT_BASE,
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 52e97bfca5a1..839f768f9e35 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -1,6 +1,6 @@
 /*
  * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -11,23 +11,47 @@
 #ifndef __LINUX_NET_DSA_H
 #define __LINUX_NET_DSA_H
 
-#define DSA_MAX_PORTS	12
+#define DSA_MAX_SWITCHES	4
+#define DSA_MAX_PORTS		12
+
+struct dsa_chip_data {
+	/*
+	 * How to access the switch configuration registers.
+	 */
+	struct device	*mii_bus;
+	int		sw_addr;
+
+	/*
+	 * The names of the switch's ports.  Use "cpu" to
+	 * designate the switch port that the cpu is connected to,
+	 * "dsa" to indicate that this port is a DSA link to
+	 * another switch, NULL to indicate the port is unused,
+	 * or any other string to indicate this is a physical port.
+	 */
+	char		*port_names[DSA_MAX_PORTS];
+
+	/*
+	 * An array (with nr_chips elements) of which element [a]
+	 * indicates which port on this switch should be used to
+	 * send packets to that are destined for switch a.  Can be
+	 * NULL if there is only one switch chip.
+	 */
+	s8		*rtable;
+};
 
 struct dsa_platform_data {
 	/*
 	 * Reference to a Linux network interface that connects
-	 * to the switch chip.
+	 * to the root switch chip of the tree.
 	 */
 	struct device	*netdev;
 
 	/*
-	 * How to access the switch configuration registers, and
-	 * the names of the switch ports (use "cpu" to designate
-	 * the switch port that the cpu is connected to).
+	 * Info structs describing each of the switch chips
+	 * connected via this network interface.
 	 */
-	struct device	*mii_bus;
-	int		sw_addr;
-	char		*port_names[DSA_MAX_PORTS];
+	int		nr_chips;
+	struct dsa_chip_data	*chip;
 };
 
 extern bool dsa_uses_dsa_tags(void *dsa_ptr);
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 33e99462023a..71489f69a42c 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -1,6 +1,6 @@
 /*
  * net/dsa/dsa.c - Hardware switch handling
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -67,12 +67,13 @@ dsa_switch_probe(struct mii_bus *bus, int sw_addr, char **_name)
 
 /* basic switch operations **************************************************/
 static struct dsa_switch *
-dsa_switch_setup(struct device *parent, struct dsa_platform_data *pd,
-		 struct mii_bus *bus, struct net_device *dev)
+dsa_switch_setup(struct dsa_switch_tree *dst, int index,
+		 struct device *parent, struct mii_bus *bus)
 {
+	struct dsa_chip_data *pd = dst->pd->chip + index;
+	struct dsa_switch_driver *drv;
 	struct dsa_switch *ds;
 	int ret;
-	struct dsa_switch_driver *drv;
 	char *name;
 	int i;
 
@@ -81,11 +82,12 @@ dsa_switch_setup(struct device *parent, struct dsa_platform_data *pd,
 	 */
 	drv = dsa_switch_probe(bus, pd->sw_addr, &name);
 	if (drv == NULL) {
-		printk(KERN_ERR "%s: could not detect attached switch\n",
-		       dev->name);
+		printk(KERN_ERR "%s[%d]: could not detect attached switch\n",
+		       dst->master_netdev->name, index);
 		return ERR_PTR(-EINVAL);
 	}
-	printk(KERN_INFO "%s: detected a %s switch\n", dev->name, name);
+	printk(KERN_INFO "%s[%d]: detected a %s switch\n",
+		dst->master_netdev->name, index, name);
 
 
 	/*
@@ -95,18 +97,16 @@ dsa_switch_setup(struct device *parent, struct dsa_platform_data *pd,
 	if (ds == NULL)
 		return ERR_PTR(-ENOMEM);
 
-	ds->pd = pd;
-	ds->master_netdev = dev;
-	ds->master_mii_bus = bus;
-
+	ds->dst = dst;
+	ds->index = index;
+	ds->pd = dst->pd->chip + index;
 	ds->drv = drv;
-	ds->tag_protocol = drv->tag_protocol;
+	ds->master_mii_bus = bus;
 
 
 	/*
 	 * Validate supplied switch configuration.
 	 */
-	ds->cpu_port = -1;
 	for (i = 0; i < DSA_MAX_PORTS; i++) {
 		char *name;
 
@@ -115,32 +115,28 @@ dsa_switch_setup(struct device *parent, struct dsa_platform_data *pd,
 			continue;
 
 		if (!strcmp(name, "cpu")) {
-			if (ds->cpu_port != -1) {
+			if (dst->cpu_switch != -1) {
 				printk(KERN_ERR "multiple cpu ports?!\n");
 				ret = -EINVAL;
 				goto out;
 			}
-			ds->cpu_port = i;
+			dst->cpu_switch = index;
+			dst->cpu_port = i;
+		} else if (!strcmp(name, "dsa")) {
+			ds->dsa_port_mask |= 1 << i;
 		} else {
-			ds->valid_port_mask |= 1 << i;
+			ds->phys_port_mask |= 1 << i;
 		}
 	}
 
-	if (ds->cpu_port == -1) {
-		printk(KERN_ERR "no cpu port?!\n");
-		ret = -EINVAL;
-		goto out;
-	}
-
 
 	/*
-	 * If we use a tagging format that doesn't have an ethertype
-	 * field, make sure that all packets from this point on get
-	 * sent to the tag format's receive function.  (Which will
-	 * discard received packets until we set ds->ports[] below.)
+	 * If the CPU connects to this switch, set the switch tree
+	 * tagging protocol to the preferred tagging format of this
+	 * switch.
 	 */
-	wmb();
-	dev->dsa_ptr = (void *)ds;
+	if (ds->dst->cpu_switch == index)
+		ds->dst->tag_protocol = drv->tag_protocol;
 
 
 	/*
@@ -150,7 +146,7 @@ dsa_switch_setup(struct device *parent, struct dsa_platform_data *pd,
 	if (ret < 0)
 		goto out;
 
-	ret = drv->set_addr(ds, dev->dev_addr);
+	ret = drv->set_addr(ds, dst->master_netdev->dev_addr);
 	if (ret < 0)
 		goto out;
 
@@ -169,18 +165,18 @@ dsa_switch_setup(struct device *parent, struct dsa_platform_data *pd,
 	/*
 	 * Create network devices for physical switch ports.
 	 */
-	wmb();
 	for (i = 0; i < DSA_MAX_PORTS; i++) {
 		struct net_device *slave_dev;
 
-		if (!(ds->valid_port_mask & (1 << i)))
+		if (!(ds->phys_port_mask & (1 << i)))
 			continue;
 
 		slave_dev = dsa_slave_create(ds, parent, i, pd->port_names[i]);
 		if (slave_dev == NULL) {
-			printk(KERN_ERR "%s: can't create dsa slave "
-			       "device for port %d(%s)\n",
-			       dev->name, i, pd->port_names[i]);
+			printk(KERN_ERR "%s[%d]: can't create dsa "
+			       "slave device for port %d(%s)\n",
+			       dst->master_netdev->name,
+			       index, i, pd->port_names[i]);
 			continue;
 		}
 
@@ -192,7 +188,6 @@ dsa_switch_setup(struct device *parent, struct dsa_platform_data *pd,
 out_free:
 	mdiobus_free(ds->slave_mii_bus);
 out:
-	dev->dsa_ptr = NULL;
 	kfree(ds);
 	return ERR_PTR(ret);
 }
@@ -212,35 +207,42 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
  */
 bool dsa_uses_dsa_tags(void *dsa_ptr)
 {
-	struct dsa_switch *ds = dsa_ptr;
+	struct dsa_switch_tree *dst = dsa_ptr;
 
-	return !!(ds->tag_protocol == htons(ETH_P_DSA));
+	return !!(dst->tag_protocol == htons(ETH_P_DSA));
 }
 
 bool dsa_uses_trailer_tags(void *dsa_ptr)
 {
-	struct dsa_switch *ds = dsa_ptr;
+	struct dsa_switch_tree *dst = dsa_ptr;
 
-	return !!(ds->tag_protocol == htons(ETH_P_TRAILER));
+	return !!(dst->tag_protocol == htons(ETH_P_TRAILER));
 }
 
 
 /* link polling *************************************************************/
 static void dsa_link_poll_work(struct work_struct *ugly)
 {
-	struct dsa_switch *ds;
+	struct dsa_switch_tree *dst;
+	int i;
+
+	dst = container_of(ugly, struct dsa_switch_tree, link_poll_work);
 
-	ds = container_of(ugly, struct dsa_switch, link_poll_work);
+	for (i = 0; i < dst->pd->nr_chips; i++) {
+		struct dsa_switch *ds = dst->ds[i];
 
-	ds->drv->poll_link(ds);
-	mod_timer(&ds->link_poll_timer, round_jiffies(jiffies + HZ));
+		if (ds != NULL && ds->drv->poll_link != NULL)
+			ds->drv->poll_link(ds);
+	}
+
+	mod_timer(&dst->link_poll_timer, round_jiffies(jiffies + HZ));
 }
 
-static void dsa_link_poll_timer(unsigned long _ds)
+static void dsa_link_poll_timer(unsigned long _dst)
 {
-	struct dsa_switch *ds = (void *)_ds;
+	struct dsa_switch_tree *dst = (void *)_dst;
 
-	schedule_work(&ds->link_poll_work);
+	schedule_work(&dst->link_poll_work);
 }
 
 
@@ -303,18 +305,14 @@ static int dsa_probe(struct platform_device *pdev)
 	static int dsa_version_printed;
 	struct dsa_platform_data *pd = pdev->dev.platform_data;
 	struct net_device *dev;
-	struct mii_bus *bus;
-	struct dsa_switch *ds;
+	struct dsa_switch_tree *dst;
+	int i;
 
 	if (!dsa_version_printed++)
 		printk(KERN_NOTICE "Distributed Switch Architecture "
 			"driver version %s\n", dsa_driver_version);
 
-	if (pd == NULL || pd->mii_bus == NULL || pd->netdev == NULL)
-		return -EINVAL;
-
-	bus = dev_to_mii_bus(pd->mii_bus);
-	if (bus == NULL)
+	if (pd == NULL || pd->netdev == NULL)
 		return -EINVAL;
 
 	dev = dev_to_net_device(pd->netdev);
@@ -326,36 +324,79 @@ static int dsa_probe(struct platform_device *pdev)
 		return -EEXIST;
 	}
 
-	ds = dsa_switch_setup(&pdev->dev, pd, bus, dev);
-	if (IS_ERR(ds)) {
+	dst = kzalloc(sizeof(*dst), GFP_KERNEL);
+	if (dst == NULL) {
 		dev_put(dev);
-		return PTR_ERR(ds);
+		return -ENOMEM;
 	}
 
-	if (ds->drv->poll_link != NULL) {
-		INIT_WORK(&ds->link_poll_work, dsa_link_poll_work);
-		init_timer(&ds->link_poll_timer);
-		ds->link_poll_timer.data = (unsigned long)ds;
-		ds->link_poll_timer.function = dsa_link_poll_timer;
-		ds->link_poll_timer.expires = round_jiffies(jiffies + HZ);
-		add_timer(&ds->link_poll_timer);
+	platform_set_drvdata(pdev, dst);
+
+	dst->pd = pd;
+	dst->master_netdev = dev;
+	dst->cpu_switch = -1;
+	dst->cpu_port = -1;
+
+	for (i = 0; i < pd->nr_chips; i++) {
+		struct mii_bus *bus;
+		struct dsa_switch *ds;
+
+		bus = dev_to_mii_bus(pd->chip[i].mii_bus);
+		if (bus == NULL) {
+			printk(KERN_ERR "%s[%d]: no mii bus found for "
+				"dsa switch\n", dev->name, i);
+			continue;
+		}
+
+		ds = dsa_switch_setup(dst, i, &pdev->dev, bus);
+		if (IS_ERR(ds)) {
+			printk(KERN_ERR "%s[%d]: couldn't create dsa switch "
+				"instance (error %ld)\n", dev->name, i,
+				PTR_ERR(ds));
+			continue;
+		}
+
+		dst->ds[i] = ds;
+		if (ds->drv->poll_link != NULL)
+			dst->link_poll_needed = 1;
 	}
 
-	platform_set_drvdata(pdev, ds);
+	/*
+	 * If we use a tagging format that doesn't have an ethertype
+	 * field, make sure that all packets from this point on get
+	 * sent to the tag format's receive function.
+	 */
+	wmb();
+	dev->dsa_ptr = (void *)dst;
+
+	if (dst->link_poll_needed) {
+		INIT_WORK(&dst->link_poll_work, dsa_link_poll_work);
+		init_timer(&dst->link_poll_timer);
+		dst->link_poll_timer.data = (unsigned long)dst;
+		dst->link_poll_timer.function = dsa_link_poll_timer;
+		dst->link_poll_timer.expires = round_jiffies(jiffies + HZ);
+		add_timer(&dst->link_poll_timer);
+	}
 
 	return 0;
 }
 
 static int dsa_remove(struct platform_device *pdev)
 {
-	struct dsa_switch *ds = platform_get_drvdata(pdev);
+	struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
+	int i;
 
-	if (ds->drv->poll_link != NULL)
-		del_timer_sync(&ds->link_poll_timer);
+	if (dst->link_poll_needed)
+		del_timer_sync(&dst->link_poll_timer);
 
 	flush_scheduled_work();
 
-	dsa_switch_destroy(ds);
+	for (i = 0; i < dst->pd->nr_chips; i++) {
+		struct dsa_switch *ds = dst->ds[i];
+
+		if (ds != NULL)
+			dsa_switch_destroy(ds);
+	}
 
 	return 0;
 }
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 7063378a1ebf..41055f33d28a 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -1,6 +1,6 @@
 /*
  * net/dsa/dsa_priv.h - Hardware switch handling
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -19,42 +19,107 @@
 
 struct dsa_switch {
 	/*
-	 * Configuration data for the platform device that owns
-	 * this dsa switch instance.
+	 * Parent switch tree, and switch index.
 	 */
-	struct dsa_platform_data	*pd;
+	struct dsa_switch_tree	*dst;
+	int			index;
 
 	/*
-	 * References to network device and mii bus to use.
+	 * Configuration data for this switch.
 	 */
-	struct net_device		*master_netdev;
-	struct mii_bus			*master_mii_bus;
+	struct dsa_chip_data	*pd;
 
 	/*
-	 * The used switch driver and frame tagging type.
+	 * The used switch driver.
 	 */
 	struct dsa_switch_driver	*drv;
-	__be16				tag_protocol;
+
+	/*
+	 * Reference to mii bus to use.
+	 */
+	struct mii_bus		*master_mii_bus;
 
 	/*
 	 * Slave mii_bus and devices for the individual ports.
 	 */
-	int				cpu_port;
-	u32				valid_port_mask;
-	struct mii_bus			*slave_mii_bus;
-	struct net_device		*ports[DSA_MAX_PORTS];
+	u32			dsa_port_mask;
+	u32			phys_port_mask;
+	struct mii_bus		*slave_mii_bus;
+	struct net_device	*ports[DSA_MAX_PORTS];
+};
+
+struct dsa_switch_tree {
+	/*
+	 * Configuration data for the platform device that owns
+	 * this dsa switch tree instance.
+	 */
+	struct dsa_platform_data	*pd;
+
+	/*
+	 * Reference to network device to use, and which tagging
+	 * protocol to use.
+	 */
+	struct net_device	*master_netdev;
+	__be16			tag_protocol;
+
+	/*
+	 * The switch and port to which the CPU is attached.
+	 */
+	s8			cpu_switch;
+	s8			cpu_port;
 
 	/*
 	 * Link state polling.
 	 */
-	struct work_struct		link_poll_work;
-	struct timer_list		link_poll_timer;
+	int			link_poll_needed;
+	struct work_struct	link_poll_work;
+	struct timer_list	link_poll_timer;
+
+	/*
+	 * Data for the individual switch chips.
+	 */
+	struct dsa_switch	*ds[DSA_MAX_SWITCHES];
 };
 
+static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
+{
+	return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
+}
+
+static inline u8 dsa_upstream_port(struct dsa_switch *ds)
+{
+	struct dsa_switch_tree *dst = ds->dst;
+
+	/*
+	 * If this is the root switch (i.e. the switch that connects
+	 * to the CPU), return the cpu port number on this switch.
+	 * Else return the (DSA) port number that connects to the
+	 * switch that is one hop closer to the cpu.
+	 */
+	if (dst->cpu_switch == ds->index)
+		return dst->cpu_port;
+	else
+		return ds->pd->rtable[dst->cpu_switch];
+}
+
 struct dsa_slave_priv {
+	/*
+	 * The linux network interface corresponding to this
+	 * switch port.
+	 */
 	struct net_device	*dev;
+
+	/*
+	 * Which switch this port is a part of, and the port index
+	 * for this port.
+	 */
 	struct dsa_switch	*parent;
-	int			port;
+	u8			port;
+
+	/*
+	 * The phylib phy_device pointer for the PHY connected
+	 * to this port.
+	 */
 	struct phy_device	*phy;
 };
 
diff --git a/net/dsa/mv88e6060.c b/net/dsa/mv88e6060.c
index 85081ae9fe89..83277f463af7 100644
--- a/net/dsa/mv88e6060.c
+++ b/net/dsa/mv88e6060.c
@@ -1,6 +1,6 @@
 /*
  * net/dsa/mv88e6060.c - Driver for Marvell 88e6060 switch chips
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -81,7 +81,7 @@ static int mv88e6060_switch_reset(struct dsa_switch *ds)
 	/*
 	 * Reset the switch.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x0A, 0xa130);
+	REG_WRITE(REG_GLOBAL, 0x0a, 0xa130);
 
 	/*
 	 * Wait up to one second for reset to complete.
@@ -128,7 +128,7 @@ static int mv88e6060_setup_port(struct dsa_switch *ds, int p)
 	 * state to Forwarding.  Additionally, if this is the CPU
 	 * port, enable Ingress and Egress Trailer tagging mode.
 	 */
-	REG_WRITE(addr, 0x04, (p == ds->cpu_port) ? 0x4103 : 0x0003);
+	REG_WRITE(addr, 0x04, dsa_is_cpu_port(ds, p) ?  0x4103 : 0x0003);
 
 	/*
 	 * Port based VLAN map: give each port its own address
@@ -138,9 +138,9 @@ static int mv88e6060_setup_port(struct dsa_switch *ds, int p)
 	 */
 	REG_WRITE(addr, 0x06,
 			((p & 0xf) << 12) |
-			 ((p == ds->cpu_port) ?
-				ds->valid_port_mask :
-				(1 << ds->cpu_port)));
+			 (dsa_is_cpu_port(ds, p) ?
+				ds->phys_port_mask :
+				(1 << ds->dst->cpu_port)));
 
 	/*
 	 * Port Association Vector: when learning source addresses
diff --git a/net/dsa/mv88e6123_61_65.c b/net/dsa/mv88e6123_61_65.c
index 100318722214..52faaa21a4d9 100644
--- a/net/dsa/mv88e6123_61_65.c
+++ b/net/dsa/mv88e6123_61_65.c
@@ -1,6 +1,6 @@
 /*
  * net/dsa/mv88e6123_61_65.c - Marvell 88e6123/6161/6165 switch chip support
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -98,17 +98,17 @@ static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 		return ret;
 
 	/*
-	 * Configure the cpu port, and configure the cpu port as the
-	 * port to which ingress and egress monitor frames are to be
-	 * sent.
+	 * Configure the upstream port, and configure the upstream
+	 * port as the port to which ingress and egress monitor frames
+	 * are to be sent.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1a, (ds->cpu_port * 0x1110));
+	REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1110));
 
 	/*
 	 * Disable remote management for now, and set the switch's
-	 * DSA device number to zero.
+	 * DSA device number.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1c, 0x0000);
+	REG_WRITE(REG_GLOBAL, 0x1c, ds->index & 0x1f);
 
 	/*
 	 * Send all frames with destination addresses matching
@@ -133,10 +133,17 @@ static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 	REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
 
 	/*
-	 * Map all DSA device IDs to the CPU port.
+	 * Program the DSA routing table.
 	 */
-	for (i = 0; i < 32; i++)
-		REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | ds->cpu_port);
+	for (i = 0; i < 32; i++) {
+		int nexthop;
+
+		nexthop = 0x1f;
+		if (i != ds->index && i < ds->dst->pd->nr_chips)
+			nexthop = ds->pd->rtable[i] & 0x1f;
+
+		REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | nexthop);
+	}
 
 	/*
 	 * Clear all trunk masks.
@@ -176,12 +183,18 @@ static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 static int mv88e6123_61_65_setup_port(struct dsa_switch *ds, int p)
 {
 	int addr = REG_PORT(p);
+	u16 val;
 
 	/*
 	 * MAC Forcing register: don't force link, speed, duplex
-	 * or flow control state to any particular values.
+	 * or flow control state to any particular values on physical
+	 * ports, but force the CPU port and all DSA ports to 1000 Mb/s
+	 * full duplex.
 	 */
-	REG_WRITE(addr, 0x01, 0x0003);
+	if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
+		REG_WRITE(addr, 0x01, 0x003e);
+	else
+		REG_WRITE(addr, 0x01, 0x0003);
 
 	/*
 	 * Do not limit the period of time that this port can be
@@ -192,37 +205,50 @@ static int mv88e6123_61_65_setup_port(struct dsa_switch *ds, int p)
 
 	/*
 	 * Port Control: disable Drop-on-Unlock, disable Drop-on-Lock,
-	 * configure the requested (DSA/EDSA) tagging mode if this is
-	 * the CPU port, disable Header mode, enable IGMP/MLD snooping,
-	 * disable VLAN tunneling, determine priority by looking at
-	 * 802.1p and IP priority fields (IP prio has precedence), and
-	 * set STP state to Forwarding.  Finally, if this is the CPU
-	 * port, additionally enable forwarding of unknown unicast and
-	 * multicast addresses.
-	 */
-	REG_WRITE(addr, 0x04,
-			(p == ds->cpu_port) ?
-			 (ds->tag_protocol == htons(ETH_P_DSA)) ?
-			  0x053f : 0x373f :
-			 0x0433);
+	 * disable Header mode, enable IGMP/MLD snooping, disable VLAN
+	 * tunneling, determine priority by looking at 802.1p and IP
+	 * priority fields (IP prio has precedence), and set STP state
+	 * to Forwarding.
+	 *
+	 * If this is the CPU link, use DSA or EDSA tagging depending
+	 * on which tagging mode was configured.
+	 *
+	 * If this is a link to another switch, use DSA tagging mode.
+	 *
+	 * If this is the upstream port for this switch, enable
+	 * forwarding of unknown unicasts and multicasts.
+	 */
+	val = 0x0433;
+	if (dsa_is_cpu_port(ds, p)) {
+		if (ds->dst->tag_protocol == htons(ETH_P_EDSA))
+			val |= 0x3300;
+		else
+			val |= 0x0100;
+	}
+	if (ds->dsa_port_mask & (1 << p))
+		val |= 0x0100;
+	if (p == dsa_upstream_port(ds))
+		val |= 0x000c;
+	REG_WRITE(addr, 0x04, val);
 
 	/*
 	 * Port Control 1: disable trunking.  Also, if this is the
 	 * CPU port, enable learn messages to be sent to this port.
 	 */
-	REG_WRITE(addr, 0x05, (p == ds->cpu_port) ? 0x8000 : 0x0000);
+	REG_WRITE(addr, 0x05, dsa_is_cpu_port(ds, p) ? 0x8000 : 0x0000);
 
 	/*
 	 * Port based VLAN map: give each port its own address
 	 * database, allow the CPU port to talk to each of the 'real'
 	 * ports, and allow each of the 'real' ports to only talk to
-	 * the CPU port.
-	 */
-	REG_WRITE(addr, 0x06,
-			((p & 0xf) << 12) |
-			 ((p == ds->cpu_port) ?
-				ds->valid_port_mask :
-				(1 << ds->cpu_port)));
+	 * the upstream port.
+	 */
+	val = (p & 0xf) << 12;
+	if (dsa_is_cpu_port(ds, p))
+		val |= ds->phys_port_mask;
+	else
+		val |= 1 << dsa_upstream_port(ds);
+	REG_WRITE(addr, 0x06, val);
 
 	/*
 	 * Default VLAN ID and priority: don't set a default VLAN
diff --git a/net/dsa/mv88e6131.c b/net/dsa/mv88e6131.c
index 002995721ecf..bb2b41bc854e 100644
--- a/net/dsa/mv88e6131.c
+++ b/net/dsa/mv88e6131.c
@@ -102,17 +102,17 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 	REG_WRITE(REG_GLOBAL, 0x19, 0x8100);
 
 	/*
-	 * Disable ARP mirroring, and configure the cpu port as the
-	 * port to which ingress and egress monitor frames are to be
-	 * sent.
+	 * Disable ARP mirroring, and configure the upstream port as
+	 * the port to which ingress and egress monitor frames are to
+	 * be sent.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1a, (ds->cpu_port * 0x1100) | 0x00f0);
+	REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1100) | 0x00f0);
 
 	/*
 	 * Disable cascade port functionality, and set the switch's
-	 * DSA device number to zero.
+	 * DSA device number.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1c, 0xe000);
+	REG_WRITE(REG_GLOBAL, 0x1c, 0xe000 | (ds->index & 0x1f));
 
 	/*
 	 * Send all frames with destination addresses matching
@@ -129,10 +129,17 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 	REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
 
 	/*
-	 * Map all DSA device IDs to the CPU port.
+	 * Program the DSA routing table.
 	 */
-	for (i = 0; i < 32; i++)
-		REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | ds->cpu_port);
+	for (i = 0; i < 32; i++) {
+		int nexthop;
+
+		nexthop = 0x1f;
+		if (i != ds->index && i < ds->dst->pd->nr_chips)
+			nexthop = ds->pd->rtable[i] & 0x1f;
+
+		REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | nexthop);
+	}
 
 	/*
 	 * Clear all trunk masks.
@@ -158,13 +165,15 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
 {
 	int addr = REG_PORT(p);
+	u16 val;
 
 	/*
 	 * MAC Forcing register: don't force link, speed, duplex
 	 * or flow control state to any particular values on physical
-	 * ports, but force the CPU port to 1000 Mb/s full duplex.
+	 * ports, but force the CPU port and all DSA ports to 1000 Mb/s
+	 * full duplex.
 	 */
-	if (p == ds->cpu_port)
+	if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
 		REG_WRITE(addr, 0x01, 0x003e);
 	else
 		REG_WRITE(addr, 0x01, 0x0003);
@@ -175,29 +184,40 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
 	 * enable IGMP/MLD snoop, disable DoubleTag, disable VLAN
 	 * tunneling, determine priority by looking at 802.1p and
 	 * IP priority fields (IP prio has precedence), and set STP
-	 * state to Forwarding.  Finally, if this is the CPU port,
-	 * additionally enable DSA tagging and forwarding of unknown
-	 * unicast addresses.
+	 * state to Forwarding.
+	 *
+	 * If this is the upstream port for this switch, enable
+	 * forwarding of unknown unicasts, and enable DSA tagging
+	 * mode.
+	 *
+	 * If this is the link to another switch, use DSA tagging
+	 * mode, but do not enable forwarding of unknown unicasts.
 	 */
-	REG_WRITE(addr, 0x04, (p == ds->cpu_port) ? 0x0537 : 0x0433);
+	val = 0x0433;
+	if (p == dsa_upstream_port(ds))
+		val |= 0x0104;
+	if (ds->dsa_port_mask & (1 << p))
+		val |= 0x0100;
+	REG_WRITE(addr, 0x04, val);
 
 	/*
 	 * Port Control 1: disable trunking.  Also, if this is the
 	 * CPU port, enable learn messages to be sent to this port.
 	 */
-	REG_WRITE(addr, 0x05, (p == ds->cpu_port) ? 0x8000 : 0x0000);
+	REG_WRITE(addr, 0x05, dsa_is_cpu_port(ds, p) ? 0x8000 : 0x0000);
 
 	/*
 	 * Port based VLAN map: give each port its own address
 	 * database, allow the CPU port to talk to each of the 'real'
 	 * ports, and allow each of the 'real' ports to only talk to
-	 * the CPU port.
+	 * the upstream port.
 	 */
-	REG_WRITE(addr, 0x06,
-			((p & 0xf) << 12) |
-			 ((p == ds->cpu_port) ?
-				ds->valid_port_mask :
-				(1 << ds->cpu_port)));
+	val = (p & 0xf) << 12;
+	if (dsa_is_cpu_port(ds, p))
+		val |= ds->phys_port_mask;
+	else
+		val |= 1 << dsa_upstream_port(ds);
+	REG_WRITE(addr, 0x06, val);
 
 	/*
 	 * Default VLAN ID and priority: don't set a default VLAN
@@ -213,13 +233,15 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
 	 * untagged frames on this port, do a destination address
 	 * lookup on received packets as usual, don't send a copy
 	 * of all transmitted/received frames on this port to the
-	 * CPU, and configure the CPU port number.  Also, if this
-	 * is the CPU port, enable forwarding of unknown multicast
-	 * addresses.
+	 * CPU, and configure the upstream port number.
+	 *
+	 * If this is the upstream port for this switch, enable
+	 * forwarding of unknown multicast addresses.
 	 */
-	REG_WRITE(addr, 0x08,
-			((p == ds->cpu_port) ? 0x00c0 : 0x0080) |
-			 ds->cpu_port);
+	val = 0x0080 | dsa_upstream_port(ds);
+	if (p == dsa_upstream_port(ds))
+		val |= 0x0040;
+	REG_WRITE(addr, 0x08, val);
 
 	/*
 	 * Rate Control: disable ingress rate limiting.
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 99114e5b32e4..ed131181215d 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1,6 +1,6 @@
 /*
  * net/dsa/slave.c - Slave device handling
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -19,7 +19,7 @@ static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg)
 {
 	struct dsa_switch *ds = bus->priv;
 
-	if (ds->valid_port_mask & (1 << addr))
+	if (ds->phys_port_mask & (1 << addr))
 		return ds->drv->phy_read(ds, addr, reg);
 
 	return 0xffff;
@@ -29,7 +29,7 @@ static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val)
 {
 	struct dsa_switch *ds = bus->priv;
 
-	if (ds->valid_port_mask & (1 << addr))
+	if (ds->phys_port_mask & (1 << addr))
 		return ds->drv->phy_write(ds, addr, reg, val);
 
 	return 0;
@@ -43,7 +43,7 @@ void dsa_slave_mii_bus_init(struct dsa_switch *ds)
 	ds->slave_mii_bus->write = dsa_slave_phy_write;
 	snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "%s:%.2x",
 			ds->master_mii_bus->id, ds->pd->sw_addr);
-	ds->slave_mii_bus->parent = &(ds->master_mii_bus->dev);
+	ds->slave_mii_bus->parent = &ds->master_mii_bus->dev;
 }
 
 
@@ -51,9 +51,8 @@ void dsa_slave_mii_bus_init(struct dsa_switch *ds)
 static int dsa_slave_init(struct net_device *dev)
 {
 	struct dsa_slave_priv *p = netdev_priv(dev);
-	struct net_device *master = p->parent->master_netdev;
 
-	dev->iflink = master->ifindex;
+	dev->iflink = p->parent->dst->master_netdev->ifindex;
 
 	return 0;
 }
@@ -61,7 +60,7 @@ static int dsa_slave_init(struct net_device *dev)
 static int dsa_slave_open(struct net_device *dev)
 {
 	struct dsa_slave_priv *p = netdev_priv(dev);
-	struct net_device *master = p->parent->master_netdev;
+	struct net_device *master = p->parent->dst->master_netdev;
 	int err;
 
 	if (!(master->flags & IFF_UP))
@@ -99,7 +98,7 @@ out:
 static int dsa_slave_close(struct net_device *dev)
 {
 	struct dsa_slave_priv *p = netdev_priv(dev);
-	struct net_device *master = p->parent->master_netdev;
+	struct net_device *master = p->parent->dst->master_netdev;
 
 	dev_mc_unsync(master, dev);
 	dev_unicast_unsync(master, dev);
@@ -117,7 +116,7 @@ static int dsa_slave_close(struct net_device *dev)
 static void dsa_slave_change_rx_flags(struct net_device *dev, int change)
 {
 	struct dsa_slave_priv *p = netdev_priv(dev);
-	struct net_device *master = p->parent->master_netdev;
+	struct net_device *master = p->parent->dst->master_netdev;
 
 	if (change & IFF_ALLMULTI)
 		dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1);
@@ -128,7 +127,7 @@ static void dsa_slave_change_rx_flags(struct net_device *dev, int change)
 static void dsa_slave_set_rx_mode(struct net_device *dev)
 {
 	struct dsa_slave_priv *p = netdev_priv(dev);
-	struct net_device *master = p->parent->master_netdev;
+	struct net_device *master = p->parent->dst->master_netdev;
 
 	dev_mc_sync(master, dev);
 	dev_unicast_sync(master, dev);
@@ -137,7 +136,7 @@ static void dsa_slave_set_rx_mode(struct net_device *dev)
 static int dsa_slave_set_mac_address(struct net_device *dev, void *a)
 {
 	struct dsa_slave_priv *p = netdev_priv(dev);
-	struct net_device *master = p->parent->master_netdev;
+	struct net_device *master = p->parent->dst->master_netdev;
 	struct sockaddr *addr = a;
 	int err;
 
@@ -341,7 +340,7 @@ struct net_device *
 dsa_slave_create(struct dsa_switch *ds, struct device *parent,
 		 int port, char *name)
 {
-	struct net_device *master = ds->master_netdev;
+	struct net_device *master = ds->dst->master_netdev;
 	struct net_device *slave_dev;
 	struct dsa_slave_priv *p;
 	int ret;
@@ -356,7 +355,7 @@ dsa_slave_create(struct dsa_switch *ds, struct device *parent,
 	memcpy(slave_dev->dev_addr, master->dev_addr, ETH_ALEN);
 	slave_dev->tx_queue_len = 0;
 
-	switch (ds->tag_protocol) {
+	switch (ds->dst->tag_protocol) {
 #ifdef CONFIG_NET_DSA_TAG_DSA
 	case htons(ETH_P_DSA):
 		slave_dev->netdev_ops = &dsa_netdev_ops;
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index 0b8a91ddff44..8fa25bafe6ca 100644
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -1,6 +1,6 @@
 /*
  * net/dsa/tag_dsa.c - (Non-ethertype) DSA tagging
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -36,7 +36,7 @@ int dsa_xmit(struct sk_buff *skb, struct net_device *dev)
 		 * Construct tagged FROM_CPU DSA tag from 802.1q tag.
 		 */
 		dsa_header = skb->data + 2 * ETH_ALEN;
-		dsa_header[0] = 0x60;
+		dsa_header[0] = 0x60 | p->parent->index;
 		dsa_header[1] = p->port << 3;
 
 		/*
@@ -57,7 +57,7 @@ int dsa_xmit(struct sk_buff *skb, struct net_device *dev)
 		 * Construct untagged FROM_CPU DSA tag.
 		 */
 		dsa_header = skb->data + 2 * ETH_ALEN;
-		dsa_header[0] = 0x40;
+		dsa_header[0] = 0x40 | p->parent->index;
 		dsa_header[1] = p->port << 3;
 		dsa_header[2] = 0x00;
 		dsa_header[3] = 0x00;
@@ -65,7 +65,7 @@ int dsa_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	skb->protocol = htons(ETH_P_DSA);
 
-	skb->dev = p->parent->master_netdev;
+	skb->dev = p->parent->dst->master_netdev;
 	dev_queue_xmit(skb);
 
 	return NETDEV_TX_OK;
@@ -78,11 +78,13 @@ out_free:
 static int dsa_rcv(struct sk_buff *skb, struct net_device *dev,
 		   struct packet_type *pt, struct net_device *orig_dev)
 {
-	struct dsa_switch *ds = dev->dsa_ptr;
+	struct dsa_switch_tree *dst = dev->dsa_ptr;
+	struct dsa_switch *ds;
 	u8 *dsa_header;
+	int source_device;
 	int source_port;
 
-	if (unlikely(ds == NULL))
+	if (unlikely(dst == NULL))
 		goto out_drop;
 
 	skb = skb_unshare(skb, GFP_ATOMIC);
@@ -98,16 +100,24 @@ static int dsa_rcv(struct sk_buff *skb, struct net_device *dev,
 	dsa_header = skb->data - 2;
 
 	/*
-	 * Check that frame type is either TO_CPU or FORWARD, and
-	 * that the source device is zero.
+	 * Check that frame type is either TO_CPU or FORWARD.
 	 */
-	if ((dsa_header[0] & 0xdf) != 0x00 && (dsa_header[0] & 0xdf) != 0xc0)
+	if ((dsa_header[0] & 0xc0) != 0x00 && (dsa_header[0] & 0xc0) != 0xc0)
 		goto out_drop;
 
 	/*
-	 * Check that the source port is a registered DSA port.
+	 * Determine source device and port.
 	 */
+	source_device = dsa_header[0] & 0x1f;
 	source_port = (dsa_header[1] >> 3) & 0x1f;
+
+	/*
+	 * Check that the source device exists and that the source
+	 * port is a registered DSA port.
+	 */
+	if (source_device >= dst->pd->nr_chips)
+		goto out_drop;
+	ds = dst->ds[source_device];
 	if (source_port >= DSA_MAX_PORTS || ds->ports[source_port] == NULL)
 		goto out_drop;
 
diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c
index 16fcb6d196d4..815607bd286f 100644
--- a/net/dsa/tag_edsa.c
+++ b/net/dsa/tag_edsa.c
@@ -1,6 +1,6 @@
 /*
  * net/dsa/tag_edsa.c - Ethertype DSA tagging
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -45,7 +45,7 @@ int edsa_xmit(struct sk_buff *skb, struct net_device *dev)
 		edsa_header[1] = ETH_P_EDSA & 0xff;
 		edsa_header[2] = 0x00;
 		edsa_header[3] = 0x00;
-		edsa_header[4] = 0x60;
+		edsa_header[4] = 0x60 | p->parent->index;
 		edsa_header[5] = p->port << 3;
 
 		/*
@@ -70,7 +70,7 @@ int edsa_xmit(struct sk_buff *skb, struct net_device *dev)
 		edsa_header[1] = ETH_P_EDSA & 0xff;
 		edsa_header[2] = 0x00;
 		edsa_header[3] = 0x00;
-		edsa_header[4] = 0x40;
+		edsa_header[4] = 0x40 | p->parent->index;
 		edsa_header[5] = p->port << 3;
 		edsa_header[6] = 0x00;
 		edsa_header[7] = 0x00;
@@ -78,7 +78,7 @@ int edsa_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	skb->protocol = htons(ETH_P_EDSA);
 
-	skb->dev = p->parent->master_netdev;
+	skb->dev = p->parent->dst->master_netdev;
 	dev_queue_xmit(skb);
 
 	return NETDEV_TX_OK;
@@ -91,11 +91,13 @@ out_free:
 static int edsa_rcv(struct sk_buff *skb, struct net_device *dev,
 		    struct packet_type *pt, struct net_device *orig_dev)
 {
-	struct dsa_switch *ds = dev->dsa_ptr;
+	struct dsa_switch_tree *dst = dev->dsa_ptr;
+	struct dsa_switch *ds;
 	u8 *edsa_header;
+	int source_device;
 	int source_port;
 
-	if (unlikely(ds == NULL))
+	if (unlikely(dst == NULL))
 		goto out_drop;
 
 	skb = skb_unshare(skb, GFP_ATOMIC);
@@ -111,16 +113,24 @@ static int edsa_rcv(struct sk_buff *skb, struct net_device *dev,
 	edsa_header = skb->data + 2;
 
 	/*
-	 * Check that frame type is either TO_CPU or FORWARD, and
-	 * that the source device is zero.
+	 * Check that frame type is either TO_CPU or FORWARD.
 	 */
-	if ((edsa_header[0] & 0xdf) != 0x00 && (edsa_header[0] & 0xdf) != 0xc0)
+	if ((edsa_header[0] & 0xc0) != 0x00 && (edsa_header[0] & 0xc0) != 0xc0)
 		goto out_drop;
 
 	/*
-	 * Check that the source port is a registered DSA port.
+	 * Determine source device and port.
 	 */
+	source_device = edsa_header[0] & 0x1f;
 	source_port = (edsa_header[1] >> 3) & 0x1f;
+
+	/*
+	 * Check that the source device exists and that the source
+	 * port is a registered DSA port.
+	 */
+	if (source_device >= dst->pd->nr_chips)
+		goto out_drop;
+	ds = dst->ds[source_device];
 	if (source_port >= DSA_MAX_PORTS || ds->ports[source_port] == NULL)
 		goto out_drop;
 
diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c
index a6d959da6784..1c3e30c38b86 100644
--- a/net/dsa/tag_trailer.c
+++ b/net/dsa/tag_trailer.c
@@ -1,6 +1,6 @@
 /*
  * net/dsa/tag_trailer.c - Trailer tag format handling
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * 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
@@ -59,7 +59,7 @@ int trailer_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	nskb->protocol = htons(ETH_P_TRAILER);
 
-	nskb->dev = p->parent->master_netdev;
+	nskb->dev = p->parent->dst->master_netdev;
 	dev_queue_xmit(nskb);
 
 	return NETDEV_TX_OK;
@@ -68,12 +68,14 @@ int trailer_xmit(struct sk_buff *skb, struct net_device *dev)
 static int trailer_rcv(struct sk_buff *skb, struct net_device *dev,
 		       struct packet_type *pt, struct net_device *orig_dev)
 {
-	struct dsa_switch *ds = dev->dsa_ptr;
+	struct dsa_switch_tree *dst = dev->dsa_ptr;
+	struct dsa_switch *ds;
 	u8 *trailer;
 	int source_port;
 
-	if (unlikely(ds == NULL))
+	if (unlikely(dst == NULL))
 		goto out_drop;
+	ds = dst->ds[0];
 
 	skb = skb_unshare(skb, GFP_ATOMIC);
 	if (skb == NULL)
-- 
cgit v1.2.3


From 777baa4711c6b8373f4e03a3a558d44a6b046d7a Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Fri, 20 Mar 2009 19:35:54 +0000
Subject: usbnet: support net_device_ops

Use net_device_ops for usbnet device, and export for use
by other derived drivers.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/usbnet.c   | 31 +++++++++++++++++++++++--------
 include/linux/usb/usbnet.h |  5 +++++
 2 files changed, 28 insertions(+), 8 deletions(-)

(limited to 'include')

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 084141692245..659654f45880 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -223,7 +223,7 @@ EXPORT_SYMBOL_GPL(usbnet_skb_return);
  *
  *-------------------------------------------------------------------------*/
 
-static int usbnet_change_mtu (struct net_device *net, int new_mtu)
+int usbnet_change_mtu (struct net_device *net, int new_mtu)
 {
 	struct usbnet	*dev = netdev_priv(net);
 	int		ll_mtu = new_mtu + net->hard_header_len;
@@ -246,6 +246,7 @@ static int usbnet_change_mtu (struct net_device *net, int new_mtu)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usbnet_change_mtu);
 
 /*-------------------------------------------------------------------------*/
 
@@ -540,7 +541,7 @@ EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs);
 
 // precondition: never called in_interrupt
 
-static int usbnet_stop (struct net_device *net)
+int usbnet_stop (struct net_device *net)
 {
 	struct usbnet		*dev = netdev_priv(net);
 	int			temp;
@@ -584,6 +585,7 @@ static int usbnet_stop (struct net_device *net)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usbnet_stop);
 
 /*-------------------------------------------------------------------------*/
 
@@ -591,7 +593,7 @@ static int usbnet_stop (struct net_device *net)
 
 // precondition: never called in_interrupt
 
-static int usbnet_open (struct net_device *net)
+int usbnet_open (struct net_device *net)
 {
 	struct usbnet		*dev = netdev_priv(net);
 	int			retval;
@@ -666,6 +668,7 @@ done:
 done_nopm:
 	return retval;
 }
+EXPORT_SYMBOL_GPL(usbnet_open);
 
 /*-------------------------------------------------------------------------*/
 
@@ -900,7 +903,7 @@ static void tx_complete (struct urb *urb)
 
 /*-------------------------------------------------------------------------*/
 
-static void usbnet_tx_timeout (struct net_device *net)
+void usbnet_tx_timeout (struct net_device *net)
 {
 	struct usbnet		*dev = netdev_priv(net);
 
@@ -909,10 +912,11 @@ static void usbnet_tx_timeout (struct net_device *net)
 
 	// FIXME: device recovery -- reset?
 }
+EXPORT_SYMBOL_GPL(usbnet_tx_timeout);
 
 /*-------------------------------------------------------------------------*/
 
-static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
+int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
 {
 	struct usbnet		*dev = netdev_priv(net);
 	int			length;
@@ -995,7 +999,7 @@ drop:
 	}
 	return retval;
 }
-
+EXPORT_SYMBOL_GPL(usbnet_start_xmit);
 
 /*-------------------------------------------------------------------------*/
 
@@ -1102,6 +1106,15 @@ void usbnet_disconnect (struct usb_interface *intf)
 }
 EXPORT_SYMBOL_GPL(usbnet_disconnect);
 
+static const struct net_device_ops usbnet_netdev_ops = {
+	.ndo_open		= usbnet_open,
+	.ndo_stop		= usbnet_stop,
+	.ndo_start_xmit		= usbnet_start_xmit,
+	.ndo_tx_timeout		= usbnet_tx_timeout,
+	.ndo_change_mtu		= usbnet_change_mtu,
+	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+};
 
 /*-------------------------------------------------------------------------*/
 
@@ -1171,12 +1184,14 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 		net->features |= NETIF_F_HIGHDMA;
 #endif
 
-	net->change_mtu = usbnet_change_mtu;
+	net->netdev_ops = &usbnet_netdev_ops;
+#ifdef CONFIG_COMPAT_NET_DEV_OPS
 	net->hard_start_xmit = usbnet_start_xmit;
 	net->open = usbnet_open;
 	net->stop = usbnet_stop;
-	net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
 	net->tx_timeout = usbnet_tx_timeout;
+#endif
+	net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
 	net->ethtool_ops = &usbnet_ethtool_ops;
 
 	// allow device-specific bind/init procedures
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 7d3822243074..36fabb95c7d3 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -176,6 +176,11 @@ struct skb_data {	/* skb->cb is one of these */
 	size_t			length;
 };
 
+extern int usbnet_open (struct net_device *net);
+extern int usbnet_stop (struct net_device *net);
+extern int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net);
+extern void usbnet_tx_timeout (struct net_device *net);
+extern int usbnet_change_mtu (struct net_device *net, int new_mtu);
 
 extern int usbnet_get_endpoints(struct usbnet *, struct usb_interface *);
 extern void usbnet_defer_kevent (struct usbnet *, int);
-- 
cgit v1.2.3


From dd5b6ce6fd465eab90357711c8e8124dc3a31ff0 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 23 Mar 2009 13:21:06 +0100
Subject: nefilter: nfnetlink: add nfnetlink_set_err and use it in ctnetlink

This patch adds nfnetlink_set_err() to propagate the error to netlink
broadcast listener in case of memory allocation errors in the
message building.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/linux/netfilter/nfnetlink.h  | 1 +
 net/netfilter/nf_conntrack_netlink.c | 2 ++
 net/netfilter/nfnetlink.c            | 6 ++++++
 net/netlink/af_netlink.c             | 1 +
 4 files changed, 10 insertions(+)

(limited to 'include')

diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 7d8e0455ccac..135e5cfe68a2 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -76,6 +76,7 @@ extern int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n);
 extern int nfnetlink_has_listeners(unsigned int group);
 extern int nfnetlink_send(struct sk_buff *skb, u32 pid, unsigned group, 
 			  int echo);
+extern void nfnetlink_set_err(u32 pid, u32 group, int error);
 extern int nfnetlink_unicast(struct sk_buff *skb, u_int32_t pid, int flags);
 
 extern void nfnl_lock(void);
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index d1fe9d15ac5c..1b75c9efb0eb 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -518,6 +518,7 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
 nla_put_failure:
 	rcu_read_unlock();
 nlmsg_failure:
+	nfnetlink_set_err(0, group, -ENOBUFS);
 	kfree_skb(skb);
 	return NOTIFY_DONE;
 }
@@ -1514,6 +1515,7 @@ static int ctnetlink_expect_event(struct notifier_block *this,
 nla_put_failure:
 	rcu_read_unlock();
 nlmsg_failure:
+	nfnetlink_set_err(0, 0, -ENOBUFS);
 	kfree_skb(skb);
 	return NOTIFY_DONE;
 }
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index 9c0ba17a1ddb..2785d66a7e38 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -113,6 +113,12 @@ int nfnetlink_send(struct sk_buff *skb, u32 pid, unsigned group, int echo)
 }
 EXPORT_SYMBOL_GPL(nfnetlink_send);
 
+void nfnetlink_set_err(u32 pid, u32 group, int error)
+{
+	netlink_set_err(nfnl, pid, group, error);
+}
+EXPORT_SYMBOL_GPL(nfnetlink_set_err);
+
 int nfnetlink_unicast(struct sk_buff *skb, u_int32_t pid, int flags)
 {
 	return netlink_unicast(nfnl, skb, pid, flags);
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 6ee69c27f806..5b33879c6422 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1106,6 +1106,7 @@ void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code)
 
 	read_unlock(&nl_table_lock);
 }
+EXPORT_SYMBOL(netlink_set_err);
 
 /* must be called with netlink table grabbed */
 static void netlink_update_socket_mc(struct netlink_sock *nlk,
-- 
cgit v1.2.3


From d0bfb940ecabf0b44fb1fd80d8d60594e569e5ec Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Mon, 15 Dec 2008 13:52:10 +0100
Subject: KVM: New guest debug interface

This rips out the support for KVM_DEBUG_GUEST and introduces a new IOCTL
instead: KVM_SET_GUEST_DEBUG. The IOCTL payload consists of a generic
part, controlling the "main switch" and the single-step feature. The
arch specific part adds an x86 interface for intercepting both types of
debug exceptions separately and re-injecting them when the host was not
interested. Moveover, the foundation for guest debugging via debug
registers is layed.

To signal breakpoint events properly back to userland, an arch-specific
data block is now returned along KVM_EXIT_DEBUG. For x86, the arch block
contains the PC, the debug exception, and relevant debug registers to
tell debug events properly apart.

The availability of this new interface is signaled by
KVM_CAP_SET_GUEST_DEBUG. Empty stubs for not yet supported archs are
provided.

Note that both SVM and VTX are supported, but only the latter was tested
yet. Based on the experience with all those VTX corner case, I would be
fairly surprised if SVM will work out of the box.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/ia64/include/asm/kvm.h     |  7 ++++
 arch/ia64/kvm/kvm-ia64.c        |  4 +-
 arch/powerpc/include/asm/kvm.h  |  7 ++++
 arch/powerpc/kvm/powerpc.c      |  4 +-
 arch/s390/include/asm/kvm.h     |  7 ++++
 arch/s390/kvm/kvm-s390.c        |  4 +-
 arch/x86/include/asm/kvm.h      | 18 ++++++++
 arch/x86/include/asm/kvm_host.h |  9 +---
 arch/x86/kvm/svm.c              | 50 +++++++++++++++++++++-
 arch/x86/kvm/vmx.c              | 93 ++++++++++++++++-------------------------
 arch/x86/kvm/x86.c              | 14 ++++---
 include/linux/kvm.h             | 51 +++++++++++++++-------
 include/linux/kvm_host.h        |  6 +--
 virt/kvm/kvm_main.c             |  6 +--
 14 files changed, 179 insertions(+), 101 deletions(-)

(limited to 'include')

diff --git a/arch/ia64/include/asm/kvm.h b/arch/ia64/include/asm/kvm.h
index bfa86b6af7cd..be3fdb891214 100644
--- a/arch/ia64/include/asm/kvm.h
+++ b/arch/ia64/include/asm/kvm.h
@@ -214,4 +214,11 @@ struct kvm_sregs {
 struct kvm_fpu {
 };
 
+struct kvm_debug_exit_arch {
+};
+
+/* for KVM_SET_GUEST_DEBUG */
+struct kvm_guest_debug_arch {
+};
+
 #endif
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 28f982045f29..de47467a0e61 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1303,8 +1303,8 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 	return -EINVAL;
 }
 
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
-		struct kvm_debug_guest *dbg)
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+					struct kvm_guest_debug *dbg)
 {
 	return -EINVAL;
 }
diff --git a/arch/powerpc/include/asm/kvm.h b/arch/powerpc/include/asm/kvm.h
index f993e4198d5c..755f1b1948c5 100644
--- a/arch/powerpc/include/asm/kvm.h
+++ b/arch/powerpc/include/asm/kvm.h
@@ -52,4 +52,11 @@ struct kvm_fpu {
 	__u64 fpr[32];
 };
 
+struct kvm_debug_exit_arch {
+};
+
+/* for KVM_SET_GUEST_DEBUG */
+struct kvm_guest_debug_arch {
+};
+
 #endif /* __LINUX_KVM_POWERPC_H */
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 5f81256287f5..7c2ad4017d6a 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -240,8 +240,8 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 	kvmppc_core_vcpu_put(vcpu);
 }
 
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
-                                    struct kvm_debug_guest *dbg)
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+					struct kvm_guest_debug *dbg)
 {
 	int i;
 
diff --git a/arch/s390/include/asm/kvm.h b/arch/s390/include/asm/kvm.h
index e1f54654e3ae..0b2f829f6d50 100644
--- a/arch/s390/include/asm/kvm.h
+++ b/arch/s390/include/asm/kvm.h
@@ -42,4 +42,11 @@ struct kvm_fpu {
 	__u64 fprs[16];
 };
 
+struct kvm_debug_exit_arch {
+};
+
+/* for KVM_SET_GUEST_DEBUG */
+struct kvm_guest_debug_arch {
+};
+
 #endif
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 0d33893e1e89..cbfe91e10120 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -422,8 +422,8 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 	return -EINVAL; /* not implemented yet */
 }
 
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
-				    struct kvm_debug_guest *dbg)
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+					struct kvm_guest_debug *dbg)
 {
 	return -EINVAL; /* not implemented yet */
 }
diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h
index 886c9402ec45..32eb96c7ca27 100644
--- a/arch/x86/include/asm/kvm.h
+++ b/arch/x86/include/asm/kvm.h
@@ -212,6 +212,24 @@ struct kvm_pit_channel_state {
 	__s64 count_load_time;
 };
 
+struct kvm_debug_exit_arch {
+	__u32 exception;
+	__u32 pad;
+	__u64 pc;
+	__u64 dr6;
+	__u64 dr7;
+};
+
+#define KVM_GUESTDBG_USE_SW_BP		0x00010000
+#define KVM_GUESTDBG_USE_HW_BP		0x00020000
+#define KVM_GUESTDBG_INJECT_DB		0x00040000
+#define KVM_GUESTDBG_INJECT_BP		0x00080000
+
+/* for KVM_SET_GUEST_DEBUG */
+struct kvm_guest_debug_arch {
+	__u64 debugreg[8];
+};
+
 struct kvm_pit_state {
 	struct kvm_pit_channel_state channels[3];
 };
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 53779309514a..c430cd580ee2 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -135,12 +135,6 @@ enum {
 
 #define KVM_NR_MEM_OBJS 40
 
-struct kvm_guest_debug {
-	int enabled;
-	unsigned long bp[4];
-	int singlestep;
-};
-
 /*
  * We don't want allocation failures within the mmu code, so we preallocate
  * enough memory for a single page fault in a cache.
@@ -448,8 +442,7 @@ struct kvm_x86_ops {
 	void (*vcpu_put)(struct kvm_vcpu *vcpu);
 
 	int (*set_guest_debug)(struct kvm_vcpu *vcpu,
-			       struct kvm_debug_guest *dbg);
-	void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
+			       struct kvm_guest_debug *dbg);
 	int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
 	int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
 	u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 0fbbde54ecae..88d9062f4545 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -968,9 +968,32 @@ static void svm_set_segment(struct kvm_vcpu *vcpu,
 
 }
 
-static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
+static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg)
 {
-	return -EOPNOTSUPP;
+	int old_debug = vcpu->guest_debug;
+	struct vcpu_svm *svm = to_svm(vcpu);
+
+	vcpu->guest_debug = dbg->control;
+
+	svm->vmcb->control.intercept_exceptions &=
+		~((1 << DB_VECTOR) | (1 << BP_VECTOR));
+	if (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) {
+		if (vcpu->guest_debug &
+		    (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))
+			svm->vmcb->control.intercept_exceptions |=
+				1 << DB_VECTOR;
+		if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP)
+			svm->vmcb->control.intercept_exceptions |=
+				1 << BP_VECTOR;
+	} else
+		vcpu->guest_debug = 0;
+
+	if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
+		svm->vmcb->save.rflags |= X86_EFLAGS_TF | X86_EFLAGS_RF;
+	else if (old_debug & KVM_GUESTDBG_SINGLESTEP)
+		svm->vmcb->save.rflags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
+
+	return 0;
 }
 
 static int svm_get_irq(struct kvm_vcpu *vcpu)
@@ -1094,6 +1117,27 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
 	return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code);
 }
 
+static int db_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	if (!(svm->vcpu.guest_debug &
+	      (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))) {
+		kvm_queue_exception(&svm->vcpu, DB_VECTOR);
+		return 1;
+	}
+	kvm_run->exit_reason = KVM_EXIT_DEBUG;
+	kvm_run->debug.arch.pc = svm->vmcb->save.cs.base + svm->vmcb->save.rip;
+	kvm_run->debug.arch.exception = DB_VECTOR;
+	return 0;
+}
+
+static int bp_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
+{
+	kvm_run->exit_reason = KVM_EXIT_DEBUG;
+	kvm_run->debug.arch.pc = svm->vmcb->save.cs.base + svm->vmcb->save.rip;
+	kvm_run->debug.arch.exception = BP_VECTOR;
+	return 0;
+}
+
 static int ud_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
 {
 	int er;
@@ -2050,6 +2094,8 @@ static int (*svm_exit_handlers[])(struct vcpu_svm *svm,
 	[SVM_EXIT_WRITE_DR3]			= emulate_on_interception,
 	[SVM_EXIT_WRITE_DR5]			= emulate_on_interception,
 	[SVM_EXIT_WRITE_DR7]			= emulate_on_interception,
+	[SVM_EXIT_EXCP_BASE + DB_VECTOR]	= db_interception,
+	[SVM_EXIT_EXCP_BASE + BP_VECTOR]	= bp_interception,
 	[SVM_EXIT_EXCP_BASE + UD_VECTOR]	= ud_interception,
 	[SVM_EXIT_EXCP_BASE + PF_VECTOR] 	= pf_interception,
 	[SVM_EXIT_EXCP_BASE + NM_VECTOR] 	= nm_interception,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 1d974c1eaa7d..f55690ddb3ac 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -480,8 +480,13 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu)
 	eb = (1u << PF_VECTOR) | (1u << UD_VECTOR);
 	if (!vcpu->fpu_active)
 		eb |= 1u << NM_VECTOR;
-	if (vcpu->guest_debug.enabled)
-		eb |= 1u << DB_VECTOR;
+	if (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) {
+		if (vcpu->guest_debug &
+		    (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))
+			eb |= 1u << DB_VECTOR;
+		if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP)
+			eb |= 1u << BP_VECTOR;
+	}
 	if (vcpu->arch.rmode.active)
 		eb = ~0;
 	if (vm_need_ept())
@@ -1003,40 +1008,23 @@ static void vmx_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg)
 	}
 }
 
-static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
+static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg)
 {
-	unsigned long dr7 = 0x400;
-	int old_singlestep;
-
-	old_singlestep = vcpu->guest_debug.singlestep;
-
-	vcpu->guest_debug.enabled = dbg->enabled;
-	if (vcpu->guest_debug.enabled) {
-		int i;
-
-		dr7 |= 0x200;  /* exact */
-		for (i = 0; i < 4; ++i) {
-			if (!dbg->breakpoints[i].enabled)
-				continue;
-			vcpu->guest_debug.bp[i] = dbg->breakpoints[i].address;
-			dr7 |= 2 << (i*2);    /* global enable */
-			dr7 |= 0 << (i*4+16); /* execution breakpoint */
-		}
-
-		vcpu->guest_debug.singlestep = dbg->singlestep;
-	} else
-		vcpu->guest_debug.singlestep = 0;
+	int old_debug = vcpu->guest_debug;
+	unsigned long flags;
 
-	if (old_singlestep && !vcpu->guest_debug.singlestep) {
-		unsigned long flags;
+	vcpu->guest_debug = dbg->control;
+	if (!(vcpu->guest_debug & KVM_GUESTDBG_ENABLE))
+		vcpu->guest_debug = 0;
 
-		flags = vmcs_readl(GUEST_RFLAGS);
+	flags = vmcs_readl(GUEST_RFLAGS);
+	if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
+		flags |= X86_EFLAGS_TF | X86_EFLAGS_RF;
+	else if (old_debug & KVM_GUESTDBG_SINGLESTEP)
 		flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
-		vmcs_writel(GUEST_RFLAGS, flags);
-	}
+	vmcs_writel(GUEST_RFLAGS, flags);
 
 	update_exception_bitmap(vcpu);
-	vmcs_writel(GUEST_DR7, dr7);
 
 	return 0;
 }
@@ -2540,24 +2528,6 @@ static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr)
 	return 0;
 }
 
-static void kvm_guest_debug_pre(struct kvm_vcpu *vcpu)
-{
-	struct kvm_guest_debug *dbg = &vcpu->guest_debug;
-
-	set_debugreg(dbg->bp[0], 0);
-	set_debugreg(dbg->bp[1], 1);
-	set_debugreg(dbg->bp[2], 2);
-	set_debugreg(dbg->bp[3], 3);
-
-	if (dbg->singlestep) {
-		unsigned long flags;
-
-		flags = vmcs_readl(GUEST_RFLAGS);
-		flags |= X86_EFLAGS_TF | X86_EFLAGS_RF;
-		vmcs_writel(GUEST_RFLAGS, flags);
-	}
-}
-
 static int handle_rmode_exception(struct kvm_vcpu *vcpu,
 				  int vec, u32 err_code)
 {
@@ -2574,9 +2544,17 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu,
 	 *        the required debugging infrastructure rework.
 	 */
 	switch (vec) {
-	case DE_VECTOR:
 	case DB_VECTOR:
+		if (vcpu->guest_debug &
+		    (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))
+			return 0;
+		kvm_queue_exception(vcpu, vec);
+		return 1;
 	case BP_VECTOR:
+		if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP)
+			return 0;
+		/* fall through */
+	case DE_VECTOR:
 	case OF_VECTOR:
 	case BR_VECTOR:
 	case UD_VECTOR:
@@ -2593,7 +2571,7 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu,
 static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	u32 intr_info, error_code;
+	u32 intr_info, ex_no, error_code;
 	unsigned long cr2, rip;
 	u32 vect_info;
 	enum emulation_result er;
@@ -2653,14 +2631,16 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		return 1;
 	}
 
-	if ((intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK)) ==
-	    (INTR_TYPE_HARD_EXCEPTION | 1)) {
+	ex_no = intr_info & INTR_INFO_VECTOR_MASK;
+	if (ex_no == DB_VECTOR || ex_no == BP_VECTOR) {
 		kvm_run->exit_reason = KVM_EXIT_DEBUG;
-		return 0;
+		kvm_run->debug.arch.pc = vmcs_readl(GUEST_CS_BASE) + rip;
+		kvm_run->debug.arch.exception = ex_no;
+	} else {
+		kvm_run->exit_reason = KVM_EXIT_EXCEPTION;
+		kvm_run->ex.exception = ex_no;
+		kvm_run->ex.error_code = error_code;
 	}
-	kvm_run->exit_reason = KVM_EXIT_EXCEPTION;
-	kvm_run->ex.exception = intr_info & INTR_INFO_VECTOR_MASK;
-	kvm_run->ex.error_code = error_code;
 	return 0;
 }
 
@@ -3600,7 +3580,6 @@ static struct kvm_x86_ops vmx_x86_ops = {
 	.vcpu_put = vmx_vcpu_put,
 
 	.set_guest_debug = set_guest_debug,
-	.guest_debug_pre = kvm_guest_debug_pre,
 	.get_msr = vmx_get_msr,
 	.set_msr = vmx_set_msr,
 	.get_segment_base = vmx_get_segment_base,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b5e9932e0f62..e990d164b56d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3005,9 +3005,6 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		goto out;
 	}
 
-	if (vcpu->guest_debug.enabled)
-		kvm_x86_ops->guest_debug_pre(vcpu);
-
 	vcpu->guest_mode = 1;
 	/*
 	 * Make sure that guest_mode assignment won't happen after
@@ -3218,7 +3215,7 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 	/*
 	 * Don't leak debug flags in case they were set for guest debugging
 	 */
-	if (vcpu->guest_debug.enabled && vcpu->guest_debug.singlestep)
+	if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
 		regs->rflags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
 
 	vcpu_put(vcpu);
@@ -3837,8 +3834,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
-				    struct kvm_debug_guest *dbg)
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+					struct kvm_guest_debug *dbg)
 {
 	int r;
 
@@ -3846,6 +3843,11 @@ int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
 
 	r = kvm_x86_ops->set_guest_debug(vcpu, dbg);
 
+	if (dbg->control & KVM_GUESTDBG_INJECT_DB)
+		kvm_queue_exception(vcpu, DB_VECTOR);
+	else if (dbg->control & KVM_GUESTDBG_INJECT_BP)
+		kvm_queue_exception(vcpu, BP_VECTOR);
+
 	vcpu_put(vcpu);
 
 	return r;
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 0424326f1679..429a2ce202f9 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -126,6 +126,7 @@ struct kvm_run {
 			__u64 data_offset; /* relative to kvm_run start */
 		} io;
 		struct {
+			struct kvm_debug_exit_arch arch;
 		} debug;
 		/* KVM_EXIT_MMIO */
 		struct {
@@ -217,21 +218,6 @@ struct kvm_interrupt {
 	__u32 irq;
 };
 
-struct kvm_breakpoint {
-	__u32 enabled;
-	__u32 padding;
-	__u64 address;
-};
-
-/* for KVM_DEBUG_GUEST */
-struct kvm_debug_guest {
-	/* int */
-	__u32 enabled;
-	__u32 pad;
-	struct kvm_breakpoint breakpoints[4];
-	__u32 singlestep;
-};
-
 /* for KVM_GET_DIRTY_LOG */
 struct kvm_dirty_log {
 	__u32 slot;
@@ -292,6 +278,17 @@ struct kvm_s390_interrupt {
 	__u64 parm64;
 };
 
+/* for KVM_SET_GUEST_DEBUG */
+
+#define KVM_GUESTDBG_ENABLE		0x00000001
+#define KVM_GUESTDBG_SINGLESTEP		0x00000002
+
+struct kvm_guest_debug {
+	__u32 control;
+	__u32 pad;
+	struct kvm_guest_debug_arch arch;
+};
+
 #define KVM_TRC_SHIFT           16
 /*
  * kvm trace categories
@@ -396,6 +393,7 @@ struct kvm_trace_rec {
 #ifdef __KVM_HAVE_USER_NMI
 #define KVM_CAP_USER_NMI 22
 #endif
+#define KVM_CAP_SET_GUEST_DEBUG 23
 
 /*
  * ioctls for VM fds
@@ -440,7 +438,8 @@ struct kvm_trace_rec {
 #define KVM_SET_SREGS             _IOW(KVMIO,  0x84, struct kvm_sregs)
 #define KVM_TRANSLATE             _IOWR(KVMIO, 0x85, struct kvm_translation)
 #define KVM_INTERRUPT             _IOW(KVMIO,  0x86, struct kvm_interrupt)
-#define KVM_DEBUG_GUEST           _IOW(KVMIO,  0x87, struct kvm_debug_guest)
+/* KVM_DEBUG_GUEST is no longer supported, use KVM_SET_GUEST_DEBUG instead */
+#define KVM_DEBUG_GUEST           __KVM_DEPRECATED_DEBUG_GUEST
 #define KVM_GET_MSRS              _IOWR(KVMIO, 0x88, struct kvm_msrs)
 #define KVM_SET_MSRS              _IOW(KVMIO,  0x89, struct kvm_msrs)
 #define KVM_SET_CPUID             _IOW(KVMIO,  0x8a, struct kvm_cpuid)
@@ -469,6 +468,26 @@ struct kvm_trace_rec {
 #define KVM_SET_MP_STATE          _IOW(KVMIO,  0x99, struct kvm_mp_state)
 /* Available with KVM_CAP_NMI */
 #define KVM_NMI                   _IO(KVMIO,  0x9a)
+/* Available with KVM_CAP_SET_GUEST_DEBUG */
+#define KVM_SET_GUEST_DEBUG       _IOW(KVMIO,  0x9b, struct kvm_guest_debug)
+
+/*
+ * Deprecated interfaces
+ */
+struct kvm_breakpoint {
+	__u32 enabled;
+	__u32 padding;
+	__u64 address;
+};
+
+struct kvm_debug_guest {
+	__u32 enabled;
+	__u32 pad;
+	struct kvm_breakpoint breakpoints[4];
+	__u32 singlestep;
+};
+
+#define __KVM_DEPRECATED_DEBUG_GUEST _IOW(KVMIO,  0x87, struct kvm_debug_guest)
 
 #define KVM_TRC_INJ_VIRQ         (KVM_TRC_HANDLER + 0x02)
 #define KVM_TRC_REDELIVER_EVT    (KVM_TRC_HANDLER + 0x03)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index bf6f703642fc..e92212f970db 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -73,7 +73,7 @@ struct kvm_vcpu {
 	struct kvm_run *run;
 	int guest_mode;
 	unsigned long requests;
-	struct kvm_guest_debug guest_debug;
+	unsigned long guest_debug;
 	int fpu_active;
 	int guest_fpu_loaded;
 	wait_queue_head_t wq;
@@ -255,8 +255,8 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
 				    struct kvm_mp_state *mp_state);
 int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
 				    struct kvm_mp_state *mp_state);
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
-				    struct kvm_debug_guest *dbg);
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+					struct kvm_guest_debug *dbg);
 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
 
 int kvm_arch_init(void *opaque);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 29a667ce35b0..f83ef9c7e89b 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1755,13 +1755,13 @@ out_free2:
 		r = 0;
 		break;
 	}
-	case KVM_DEBUG_GUEST: {
-		struct kvm_debug_guest dbg;
+	case KVM_SET_GUEST_DEBUG: {
+		struct kvm_guest_debug dbg;
 
 		r = -EFAULT;
 		if (copy_from_user(&dbg, argp, sizeof dbg))
 			goto out;
-		r = kvm_arch_vcpu_ioctl_debug_guest(vcpu, &dbg);
+		r = kvm_arch_vcpu_ioctl_set_guest_debug(vcpu, &dbg);
 		if (r)
 			goto out;
 		r = 0;
-- 
cgit v1.2.3


From e9a999fe1feaddb71bffbacbbd68e0da8ca8b50b Mon Sep 17 00:00:00 2001
From: Jes Sorensen <jes@sgi.com>
Date: Thu, 18 Dec 2008 12:17:51 +0100
Subject: KVM: ia64: stack get/restore patch

Implement KVM_IA64_VCPU_[GS]ET_STACK ioctl calls. This is required
for live migrations.

Patch is based on previous implementation that was part of old
GET/SET_REGS ioctl calls.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/ia64/include/asm/kvm.h      |  7 +++
 arch/ia64/include/asm/kvm_host.h |  6 ++-
 arch/ia64/kvm/kvm-ia64.c         | 92 ++++++++++++++++++++++++++++++++++++++--
 include/linux/kvm.h              |  3 ++
 4 files changed, 104 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/arch/ia64/include/asm/kvm.h b/arch/ia64/include/asm/kvm.h
index be3fdb891214..b5145784233e 100644
--- a/arch/ia64/include/asm/kvm.h
+++ b/arch/ia64/include/asm/kvm.h
@@ -214,6 +214,13 @@ struct kvm_sregs {
 struct kvm_fpu {
 };
 
+#define KVM_IA64_VCPU_STACK_SHIFT	16
+#define KVM_IA64_VCPU_STACK_SIZE	(1UL << KVM_IA64_VCPU_STACK_SHIFT)
+
+struct kvm_ia64_vcpu_stack {
+	unsigned char stack[KVM_IA64_VCPU_STACK_SIZE];
+};
+
 struct kvm_debug_exit_arch {
 };
 
diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h
index 348663661659..7da0c0963226 100644
--- a/arch/ia64/include/asm/kvm_host.h
+++ b/arch/ia64/include/asm/kvm_host.h
@@ -112,7 +112,11 @@
 #define VCPU_STRUCT_SHIFT	16
 #define VCPU_STRUCT_SIZE	(__IA64_UL_CONST(1) << VCPU_STRUCT_SHIFT)
 
-#define KVM_STK_OFFSET		VCPU_STRUCT_SIZE
+/*
+ * This must match KVM_IA64_VCPU_STACK_{SHIFT,SIZE} arch/ia64/include/asm/kvm.h
+ */
+#define KVM_STK_SHIFT		16
+#define KVM_STK_OFFSET		(__IA64_UL_CONST(1)<< KVM_STK_SHIFT)
 
 #define KVM_VM_STRUCT_SHIFT	19
 #define KVM_VM_STRUCT_SIZE	(__IA64_UL_CONST(1) << KVM_VM_STRUCT_SHIFT)
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index de47467a0e61..1477f91617a5 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1421,6 +1421,23 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 	return 0;
 }
 
+int kvm_arch_vcpu_ioctl_get_stack(struct kvm_vcpu *vcpu,
+				  struct kvm_ia64_vcpu_stack *stack)
+{
+	memcpy(stack, vcpu, sizeof(struct kvm_ia64_vcpu_stack));
+	return 0;
+}
+
+int kvm_arch_vcpu_ioctl_set_stack(struct kvm_vcpu *vcpu,
+				  struct kvm_ia64_vcpu_stack *stack)
+{
+	memcpy(vcpu + 1, &stack->stack[0] + sizeof(struct kvm_vcpu),
+	       sizeof(struct kvm_ia64_vcpu_stack) - sizeof(struct kvm_vcpu));
+
+	vcpu->arch.exit_data = ((struct kvm_vcpu *)stack)->arch.exit_data;
+	return 0;
+}
+
 void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
 {
 
@@ -1430,9 +1447,78 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
 
 
 long kvm_arch_vcpu_ioctl(struct file *filp,
-		unsigned int ioctl, unsigned long arg)
+			 unsigned int ioctl, unsigned long arg)
 {
-	return -EINVAL;
+	struct kvm_vcpu *vcpu = filp->private_data;
+	void __user *argp = (void __user *)arg;
+	struct kvm_ia64_vcpu_stack *stack = NULL;
+	long r;
+
+	switch (ioctl) {
+	case KVM_IA64_VCPU_GET_STACK: {
+		struct kvm_ia64_vcpu_stack __user *user_stack;
+	        void __user *first_p = argp;
+
+		r = -EFAULT;
+		if (copy_from_user(&user_stack, first_p, sizeof(void *)))
+			goto out;
+
+		if (!access_ok(VERIFY_WRITE, user_stack,
+			       sizeof(struct kvm_ia64_vcpu_stack))) {
+			printk(KERN_INFO "KVM_IA64_VCPU_GET_STACK: "
+			       "Illegal user destination address for stack\n");
+			goto out;
+		}
+		stack = kzalloc(sizeof(struct kvm_ia64_vcpu_stack), GFP_KERNEL);
+		if (!stack) {
+			r = -ENOMEM;
+			goto out;
+		}
+
+		r = kvm_arch_vcpu_ioctl_get_stack(vcpu, stack);
+		if (r)
+			goto out;
+
+		if (copy_to_user(user_stack, stack,
+				 sizeof(struct kvm_ia64_vcpu_stack)))
+			goto out;
+
+		break;
+	}
+	case KVM_IA64_VCPU_SET_STACK: {
+		struct kvm_ia64_vcpu_stack __user *user_stack;
+	        void __user *first_p = argp;
+
+		r = -EFAULT;
+		if (copy_from_user(&user_stack, first_p, sizeof(void *)))
+			goto out;
+
+		if (!access_ok(VERIFY_READ, user_stack,
+			    sizeof(struct kvm_ia64_vcpu_stack))) {
+			printk(KERN_INFO "KVM_IA64_VCPU_SET_STACK: "
+			       "Illegal user address for stack\n");
+			goto out;
+		}
+		stack = kmalloc(sizeof(struct kvm_ia64_vcpu_stack), GFP_KERNEL);
+		if (!stack) {
+			r = -ENOMEM;
+			goto out;
+		}
+		if (copy_from_user(stack, user_stack,
+				   sizeof(struct kvm_ia64_vcpu_stack)))
+			goto out;
+
+		r = kvm_arch_vcpu_ioctl_set_stack(vcpu, stack);
+		break;
+	}
+
+	default:
+		r = -EINVAL;
+	}
+
+out:
+	kfree(stack);
+	return r;
 }
 
 int kvm_arch_set_memory_region(struct kvm *kvm,
@@ -1472,7 +1558,7 @@ void kvm_arch_flush_shadow(struct kvm *kvm)
 }
 
 long kvm_arch_dev_ioctl(struct file *filp,
-		unsigned int ioctl, unsigned long arg)
+			unsigned int ioctl, unsigned long arg)
 {
 	return -EINVAL;
 }
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 429a2ce202f9..28582fcd3f79 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -489,6 +489,9 @@ struct kvm_debug_guest {
 
 #define __KVM_DEPRECATED_DEBUG_GUEST _IOW(KVMIO,  0x87, struct kvm_debug_guest)
 
+#define KVM_IA64_VCPU_GET_STACK   _IOR(KVMIO,  0x9a, void *)
+#define KVM_IA64_VCPU_SET_STACK   _IOW(KVMIO,  0x9b, void *)
+
 #define KVM_TRC_INJ_VIRQ         (KVM_TRC_HANDLER + 0x02)
 #define KVM_TRC_REDELIVER_EVT    (KVM_TRC_HANDLER + 0x03)
 #define KVM_TRC_PEND_INTR        (KVM_TRC_HANDLER + 0x04)
-- 
cgit v1.2.3


From 971cc3dcbc0e020b82f568e61a47b72be03307dd Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Fri, 19 Dec 2008 18:13:54 +0100
Subject: KVM: Advertise guest debug capability per-arch

Limit KVM_CAP_SET_GUEST_DEBUG only to those archs (currently x86) that
support it. This simplifies user space stub implementations.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include')

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 28582fcd3f79..11e3e6197c83 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -393,7 +393,9 @@ struct kvm_trace_rec {
 #ifdef __KVM_HAVE_USER_NMI
 #define KVM_CAP_USER_NMI 22
 #endif
+#if defined(CONFIG_X86)
 #define KVM_CAP_SET_GUEST_DEBUG 23
+#endif
 
 /*
  * ioctls for VM fds
-- 
cgit v1.2.3


From 0f346074403bc109f9569f14b45cb09e83729032 Mon Sep 17 00:00:00 2001
From: Izik Eidus <ieidus@redhat.com>
Date: Mon, 29 Dec 2008 01:42:20 +0200
Subject: KVM: remove the vmap usage

vmap() on guest pages hides those pages from the Linux mm for an extended
(userspace determined) amount of time.  Get rid of it.

Signed-off-by: Izik Eidus <ieidus@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kvm/x86.c        | 62 ++++++++++-------------------------------------
 include/linux/kvm_types.h |  3 +--
 2 files changed, 14 insertions(+), 51 deletions(-)

(limited to 'include')

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 67f91764e99b..2a4f3a697343 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2371,40 +2371,19 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
 }
 EXPORT_SYMBOL_GPL(emulate_instruction);
 
-static void free_pio_guest_pages(struct kvm_vcpu *vcpu)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(vcpu->arch.pio.guest_pages); ++i)
-		if (vcpu->arch.pio.guest_pages[i]) {
-			kvm_release_page_dirty(vcpu->arch.pio.guest_pages[i]);
-			vcpu->arch.pio.guest_pages[i] = NULL;
-		}
-}
-
 static int pio_copy_data(struct kvm_vcpu *vcpu)
 {
 	void *p = vcpu->arch.pio_data;
-	void *q;
+	gva_t q = vcpu->arch.pio.guest_gva;
 	unsigned bytes;
-	int nr_pages = vcpu->arch.pio.guest_pages[1] ? 2 : 1;
+	int ret;
 
-	q = vmap(vcpu->arch.pio.guest_pages, nr_pages, VM_READ|VM_WRITE,
-		 PAGE_KERNEL);
-	if (!q) {
-		free_pio_guest_pages(vcpu);
-		return -ENOMEM;
-	}
-	q += vcpu->arch.pio.guest_page_offset;
 	bytes = vcpu->arch.pio.size * vcpu->arch.pio.cur_count;
 	if (vcpu->arch.pio.in)
-		memcpy(q, p, bytes);
+		ret = kvm_write_guest_virt(q, p, bytes, vcpu);
 	else
-		memcpy(p, q, bytes);
-	q -= vcpu->arch.pio.guest_page_offset;
-	vunmap(q);
-	free_pio_guest_pages(vcpu);
-	return 0;
+		ret = kvm_read_guest_virt(q, p, bytes, vcpu);
+	return ret;
 }
 
 int complete_pio(struct kvm_vcpu *vcpu)
@@ -2515,7 +2494,6 @@ int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 	vcpu->arch.pio.in = in;
 	vcpu->arch.pio.string = 0;
 	vcpu->arch.pio.down = 0;
-	vcpu->arch.pio.guest_page_offset = 0;
 	vcpu->arch.pio.rep = 0;
 
 	if (vcpu->run->io.direction == KVM_EXIT_IO_IN)
@@ -2543,9 +2521,7 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 		  gva_t address, int rep, unsigned port)
 {
 	unsigned now, in_page;
-	int i, ret = 0;
-	int nr_pages = 1;
-	struct page *page;
+	int ret = 0;
 	struct kvm_io_device *pio_dev;
 
 	vcpu->run->exit_reason = KVM_EXIT_IO;
@@ -2557,7 +2533,6 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 	vcpu->arch.pio.in = in;
 	vcpu->arch.pio.string = 1;
 	vcpu->arch.pio.down = down;
-	vcpu->arch.pio.guest_page_offset = offset_in_page(address);
 	vcpu->arch.pio.rep = rep;
 
 	if (vcpu->run->io.direction == KVM_EXIT_IO_IN)
@@ -2577,15 +2552,8 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 	else
 		in_page = offset_in_page(address) + size;
 	now = min(count, (unsigned long)in_page / size);
-	if (!now) {
-		/*
-		 * String I/O straddles page boundary.  Pin two guest pages
-		 * so that we satisfy atomicity constraints.  Do just one
-		 * transaction to avoid complexity.
-		 */
-		nr_pages = 2;
+	if (!now)
 		now = 1;
-	}
 	if (down) {
 		/*
 		 * String I/O in reverse.  Yuck.  Kill the guest, fix later.
@@ -2600,15 +2568,7 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 	if (vcpu->arch.pio.cur_count == vcpu->arch.pio.count)
 		kvm_x86_ops->skip_emulated_instruction(vcpu);
 
-	for (i = 0; i < nr_pages; ++i) {
-		page = gva_to_page(vcpu, address + i * PAGE_SIZE);
-		vcpu->arch.pio.guest_pages[i] = page;
-		if (!page) {
-			kvm_inject_gp(vcpu, 0);
-			free_pio_guest_pages(vcpu);
-			return 1;
-		}
-	}
+	vcpu->arch.pio.guest_gva = address;
 
 	pio_dev = vcpu_find_pio_dev(vcpu, port,
 				    vcpu->arch.pio.cur_count,
@@ -2616,7 +2576,11 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 	if (!vcpu->arch.pio.in) {
 		/* string PIO write */
 		ret = pio_copy_data(vcpu);
-		if (ret >= 0 && pio_dev) {
+		if (ret == X86EMUL_PROPAGATE_FAULT) {
+			kvm_inject_gp(vcpu, 0);
+			return 1;
+		}
+		if (ret == 0 && pio_dev) {
 			pio_string_write(pio_dev, vcpu);
 			complete_pio(vcpu);
 			if (vcpu->arch.pio.count == 0)
diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h
index 9b6f395c9625..5f4a18cae26b 100644
--- a/include/linux/kvm_types.h
+++ b/include/linux/kvm_types.h
@@ -43,8 +43,7 @@ typedef hfn_t pfn_t;
 struct kvm_pio_request {
 	unsigned long count;
 	int cur_count;
-	struct page *guest_pages[2];
-	unsigned guest_page_offset;
+	gva_t guest_gva;
 	int in;
 	int port;
 	int size;
-- 
cgit v1.2.3


From 52d939a0bf44081bc9f69b4fbdc9e7f416df27c7 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Tue, 30 Dec 2008 15:55:06 -0200
Subject: KVM: PIT: provide an option to disable interrupt reinjection

Certain clocks (such as TSC) in older 2.6 guests overaccount for lost
ticks, causing severe time drift. Interrupt reinjection magnifies the
problem.

Provide an option to disable it.

[avi: allow room for expansion in case we want to disable reinjection
      of other timers]

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/include/asm/kvm.h |  5 +++++
 arch/x86/kvm/i8254.c       |  4 ++++
 arch/x86/kvm/i8254.h       |  1 +
 arch/x86/kvm/x86.c         | 21 +++++++++++++++++++++
 include/linux/kvm.h        |  4 ++++
 5 files changed, 35 insertions(+)

(limited to 'include')

diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h
index 32eb96c7ca27..54bcf2281526 100644
--- a/arch/x86/include/asm/kvm.h
+++ b/arch/x86/include/asm/kvm.h
@@ -233,4 +233,9 @@ struct kvm_guest_debug_arch {
 struct kvm_pit_state {
 	struct kvm_pit_channel_state channels[3];
 };
+
+struct kvm_reinject_control {
+	__u8 pit_reinject;
+	__u8 reserved[31];
+};
 #endif /* _ASM_X86_KVM_H */
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 72bd275a9b5c..528daadeba49 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -201,6 +201,9 @@ static int __pit_timer_fn(struct kvm_kpit_state *ps)
 	if (!atomic_inc_and_test(&pt->pending))
 		set_bit(KVM_REQ_PENDING_TIMER, &vcpu0->requests);
 
+	if (!pt->reinject)
+		atomic_set(&pt->pending, 1);
+
 	if (vcpu0 && waitqueue_active(&vcpu0->wq))
 		wake_up_interruptible(&vcpu0->wq);
 
@@ -580,6 +583,7 @@ struct kvm_pit *kvm_create_pit(struct kvm *kvm)
 	pit_state->irq_ack_notifier.gsi = 0;
 	pit_state->irq_ack_notifier.irq_acked = kvm_pit_ack_irq;
 	kvm_register_irq_ack_notifier(kvm, &pit_state->irq_ack_notifier);
+	pit_state->pit_timer.reinject = true;
 	mutex_unlock(&pit->pit_state.lock);
 
 	kvm_pit_reset(pit);
diff --git a/arch/x86/kvm/i8254.h b/arch/x86/kvm/i8254.h
index 4178022b97aa..76959c4b500e 100644
--- a/arch/x86/kvm/i8254.h
+++ b/arch/x86/kvm/i8254.h
@@ -9,6 +9,7 @@ struct kvm_kpit_timer {
 	s64 period; /* unit: ns */
 	s64 scheduled;
 	atomic_t pending;
+	bool reinject;
 };
 
 struct kvm_kpit_channel_state {
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c3fbe8c55c13..a1f14611f4b9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -993,6 +993,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_NOP_IO_DELAY:
 	case KVM_CAP_MP_STATE:
 	case KVM_CAP_SYNC_MMU:
+	case KVM_CAP_REINJECT_CONTROL:
 		r = 1;
 		break;
 	case KVM_CAP_COALESCED_MMIO:
@@ -1728,6 +1729,15 @@ static int kvm_vm_ioctl_set_pit(struct kvm *kvm, struct kvm_pit_state *ps)
 	return r;
 }
 
+static int kvm_vm_ioctl_reinject(struct kvm *kvm,
+				 struct kvm_reinject_control *control)
+{
+	if (!kvm->arch.vpit)
+		return -ENXIO;
+	kvm->arch.vpit->pit_state.pit_timer.reinject = control->pit_reinject;
+	return 0;
+}
+
 /*
  * Get (and clear) the dirty memory log for a memory slot.
  */
@@ -1925,6 +1935,17 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		r = 0;
 		break;
 	}
+	case KVM_REINJECT_CONTROL: {
+		struct kvm_reinject_control control;
+		r =  -EFAULT;
+		if (copy_from_user(&control, argp, sizeof(control)))
+			goto out;
+		r = kvm_vm_ioctl_reinject(kvm, &control);
+		if (r)
+			goto out;
+		r = 0;
+		break;
+	}
 	default:
 		;
 	}
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 11e3e6197c83..ae7a12c77427 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -396,6 +396,9 @@ struct kvm_trace_rec {
 #if defined(CONFIG_X86)
 #define KVM_CAP_SET_GUEST_DEBUG 23
 #endif
+#if defined(CONFIG_X86)
+#define KVM_CAP_REINJECT_CONTROL 24
+#endif
 
 /*
  * ioctls for VM fds
@@ -429,6 +432,7 @@ struct kvm_trace_rec {
 				   struct kvm_assigned_pci_dev)
 #define KVM_ASSIGN_IRQ _IOR(KVMIO, 0x70, \
 			    struct kvm_assigned_irq)
+#define KVM_REINJECT_CONTROL      _IO(KVMIO, 0x71)
 
 /*
  * ioctls for vcpu fds
-- 
cgit v1.2.3


From 1c08364c3565242f1e1bd585bc2ce458967941af Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Sun, 4 Jan 2009 12:39:07 +0200
Subject: KVM: Move struct kvm_pio_request into x86 kvm_host.h

This is an x86 specific stucture and has no business living in common code.

Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/include/asm/kvm_host.h | 12 ++++++++++++
 include/linux/kvm_types.h       | 12 ------------
 2 files changed, 12 insertions(+), 12 deletions(-)

(limited to 'include')

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b74576aec19a..863ea73431ad 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -227,6 +227,18 @@ struct kvm_pv_mmu_op_buffer {
 	char buf[512] __aligned(sizeof(long));
 };
 
+struct kvm_pio_request {
+	unsigned long count;
+	int cur_count;
+	gva_t guest_gva;
+	int in;
+	int port;
+	int size;
+	int string;
+	int down;
+	int rep;
+};
+
 /*
  * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
  * 32-bit).  The kvm_mmu structure abstracts the details of the current mmu
diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h
index 5f4a18cae26b..2b8318c83e53 100644
--- a/include/linux/kvm_types.h
+++ b/include/linux/kvm_types.h
@@ -40,16 +40,4 @@ typedef unsigned long  hfn_t;
 
 typedef hfn_t pfn_t;
 
-struct kvm_pio_request {
-	unsigned long count;
-	int cur_count;
-	gva_t guest_gva;
-	int in;
-	int port;
-	int size;
-	int string;
-	int down;
-	int rep;
-};
-
 #endif /* __KVM_TYPES_H__ */
-- 
cgit v1.2.3


From 67346440e83d2a2f2e9801f370b6240317c7d9bd Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng@linux.intel.com>
Date: Tue, 6 Jan 2009 10:03:01 +0800
Subject: KVM: Remove duplicated prototype of kvm_arch_destroy_vm

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm_host.h | 1 -
 1 file changed, 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index e92212f970db..3cf0ede3fd73 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -237,7 +237,6 @@ int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
 				   int user_alloc);
 long kvm_arch_vm_ioctl(struct file *filp,
 		       unsigned int ioctl, unsigned long arg);
-void kvm_arch_destroy_vm(struct kvm *kvm);
 
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
-- 
cgit v1.2.3


From 17071fe74fe0fbfdb03cd9b82f2490447cf1f986 Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng@linux.intel.com>
Date: Tue, 6 Jan 2009 16:25:11 +0800
Subject: KVM: Add support to disable MSI for assigned device

MSI is always enabled by default for msi2intx=1. But if msi2intx=0, we
have to disable MSI if guest require to do so.

The patch also discard unnecessary msi2intx judgment if guest want to update
MSI state.

Notice KVM_DEV_IRQ_ASSIGN_MSI_ACTION is a mask which should cover all MSI
related operations, though we only got one for now.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm.h |  1 +
 virt/kvm/kvm_main.c | 18 ++++++++++++++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index ae7a12c77427..73f348066866 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -550,6 +550,7 @@ struct kvm_assigned_irq {
 
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)
 
+#define KVM_DEV_IRQ_ASSIGN_MSI_ACTION	KVM_DEV_IRQ_ASSIGN_ENABLE_MSI
 #define KVM_DEV_IRQ_ASSIGN_ENABLE_MSI	(1 << 0)
 
 #endif
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index f83ef9c7e89b..04401e17c758 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -343,6 +343,14 @@ static int assigned_device_update_msi(struct kvm *kvm,
 		adev->irq_requested_type &= ~KVM_ASSIGNED_DEV_GUEST_MSI;
 		adev->guest_irq = airq->guest_irq;
 		adev->ack_notifier.gsi = airq->guest_irq;
+	} else {
+		/*
+		 * Guest require to disable device MSI, we disable MSI and
+		 * re-enable INTx by default again. Notice it's only for
+		 * non-msi2intx.
+		 */
+		assigned_device_update_intx(kvm, adev, airq);
+		return 0;
 	}
 
 	if (adev->irq_requested_type & KVM_ASSIGNED_DEV_HOST_MSI)
@@ -379,6 +387,7 @@ static int kvm_vm_ioctl_assign_irq(struct kvm *kvm,
 {
 	int r = 0;
 	struct kvm_assigned_dev_kernel *match;
+	u32 current_flags = 0, changed_flags;
 
 	mutex_lock(&kvm->lock);
 
@@ -416,8 +425,13 @@ static int kvm_vm_ioctl_assign_irq(struct kvm *kvm,
 		}
 	}
 
-	if ((!msi2intx &&
-	     (assigned_irq->flags & KVM_DEV_IRQ_ASSIGN_ENABLE_MSI)) ||
+	if ((match->irq_requested_type & KVM_ASSIGNED_DEV_HOST_MSI) &&
+		 (match->irq_requested_type & KVM_ASSIGNED_DEV_GUEST_MSI))
+		current_flags |= KVM_DEV_IRQ_ASSIGN_ENABLE_MSI;
+
+	changed_flags = assigned_irq->flags ^ current_flags;
+
+	if ((changed_flags & KVM_DEV_IRQ_ASSIGN_MSI_ACTION) ||
 	    (msi2intx && match->dev->msi_enabled)) {
 #ifdef CONFIG_X86
 		r = assigned_device_update_msi(kvm, match, assigned_irq);
-- 
cgit v1.2.3


From 75858a84a6207f5e60196f6bbd18fde4250e5759 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Sun, 4 Jan 2009 17:10:50 +0200
Subject: KVM: Interrupt mask notifiers for ioapic

Allow clients to request notifications when the guest masks or unmasks a
particular irq line.  This complements irq ack notifications, as the guest
will not ack an irq line that is masked.

Currently implemented for the ioapic only.

Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm_host.h | 17 +++++++++++++++++
 virt/kvm/ioapic.c        |  6 ++++++
 virt/kvm/irq_comm.c      | 24 ++++++++++++++++++++++++
 virt/kvm/kvm_main.c      |  3 +++
 4 files changed, 50 insertions(+)

(limited to 'include')

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 3cf0ede3fd73..99963f36a6db 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -127,6 +127,10 @@ struct kvm {
 	struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
 #endif
 
+#ifdef CONFIG_HAVE_KVM_IRQCHIP
+	struct hlist_head mask_notifier_list;
+#endif
+
 #ifdef KVM_ARCH_WANT_MMU_NOTIFIER
 	struct mmu_notifier mmu_notifier;
 	unsigned long mmu_notifier_seq;
@@ -320,6 +324,19 @@ struct kvm_assigned_dev_kernel {
 	struct pci_dev *dev;
 	struct kvm *kvm;
 };
+
+struct kvm_irq_mask_notifier {
+	void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
+	int irq;
+	struct hlist_node link;
+};
+
+void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
+				    struct kvm_irq_mask_notifier *kimn);
+void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
+				      struct kvm_irq_mask_notifier *kimn);
+void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
+
 void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
 void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi);
 void kvm_register_irq_ack_notifier(struct kvm *kvm,
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 23b81cf242af..e85a2bcd2db1 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -101,6 +101,7 @@ static void ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx)
 static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
 {
 	unsigned index;
+	bool mask_before, mask_after;
 
 	switch (ioapic->ioregsel) {
 	case IOAPIC_REG_VERSION:
@@ -120,6 +121,7 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
 		ioapic_debug("change redir index %x val %x\n", index, val);
 		if (index >= IOAPIC_NUM_PINS)
 			return;
+		mask_before = ioapic->redirtbl[index].fields.mask;
 		if (ioapic->ioregsel & 1) {
 			ioapic->redirtbl[index].bits &= 0xffffffff;
 			ioapic->redirtbl[index].bits |= (u64) val << 32;
@@ -128,6 +130,9 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
 			ioapic->redirtbl[index].bits |= (u32) val;
 			ioapic->redirtbl[index].fields.remote_irr = 0;
 		}
+		mask_after = ioapic->redirtbl[index].fields.mask;
+		if (mask_before != mask_after)
+			kvm_fire_mask_notifiers(ioapic->kvm, index, mask_after);
 		if (ioapic->irr & (1 << index))
 			ioapic_service(ioapic, index);
 		break;
@@ -426,3 +431,4 @@ int kvm_ioapic_init(struct kvm *kvm)
 	kvm_io_bus_register_dev(&kvm->mmio_bus, &ioapic->dev);
 	return 0;
 }
+
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index aa5d1e5c497e..5162a411e4d2 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -99,3 +99,27 @@ void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id)
 		clear_bit(irq_source_id, &kvm->arch.irq_states[i]);
 	clear_bit(irq_source_id, &kvm->arch.irq_sources_bitmap);
 }
+
+void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
+				    struct kvm_irq_mask_notifier *kimn)
+{
+	kimn->irq = irq;
+	hlist_add_head(&kimn->link, &kvm->mask_notifier_list);
+}
+
+void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
+				      struct kvm_irq_mask_notifier *kimn)
+{
+	hlist_del(&kimn->link);
+}
+
+void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask)
+{
+	struct kvm_irq_mask_notifier *kimn;
+	struct hlist_node *n;
+
+	hlist_for_each_entry(kimn, n, &kvm->mask_notifier_list, link)
+		if (kimn->irq == irq)
+			kimn->func(kimn, mask);
+}
+
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 04401e17c758..786a3ae373b0 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -842,6 +842,9 @@ static struct kvm *kvm_create_vm(void)
 
 	if (IS_ERR(kvm))
 		goto out;
+#ifdef CONFIG_HAVE_KVM_IRQCHIP
+	INIT_HLIST_HEAD(&kvm->mask_notifier_list);
+#endif
 
 #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
 	page = alloc_page(GFP_KERNEL | __GFP_ZERO);
-- 
cgit v1.2.3


From 399ec807ddc38ecccf8c06dbde04531cbdc63e11 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Wed, 19 Nov 2008 13:58:46 +0200
Subject: KVM: Userspace controlled irq routing

Currently KVM has a static routing from GSI numbers to interrupts (namely,
0-15 are mapped 1:1 to both PIC and IOAPIC, and 16:23 are mapped 1:1 to
the IOAPIC).  This is insufficient for several reasons:

- HPET requires non 1:1 mapping for the timer interrupt
- MSIs need a new method to assign interrupt numbers and dispatch them
- ACPI APIC mode needs to be able to reassign the PCI LINK interrupts to the
  ioapics

This patch implements an interrupt routing table (as a linked list, but this
can be easily changed) and a userspace interface to replace the table.  The
routing table is initialized according to the current hardwired mapping.

Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/ia64/kvm/kvm-ia64.c |   5 ++
 arch/x86/kvm/x86.c       |   6 ++
 include/linux/kvm.h      |  33 ++++++++++
 include/linux/kvm_host.h |  31 +++++++++
 virt/kvm/irq_comm.c      | 168 +++++++++++++++++++++++++++++++++++++++++++++--
 virt/kvm/kvm_main.c      |  36 ++++++++++
 6 files changed, 275 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 1477f91617a5..dbf527a57341 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -919,6 +919,11 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		r = kvm_ioapic_init(kvm);
 		if (r)
 			goto out;
+		r = kvm_setup_default_irq_routing(kvm);
+		if (r) {
+			kfree(kvm->arch.vioapic);
+			goto out;
+		}
 		break;
 	case KVM_IRQ_LINE: {
 		struct kvm_irq_level irq_event;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 141a0166e51c..32e3a7ec6ad2 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1835,6 +1835,12 @@ long kvm_arch_vm_ioctl(struct file *filp,
 			}
 		} else
 			goto out;
+		r = kvm_setup_default_irq_routing(kvm);
+		if (r) {
+			kfree(kvm->arch.vpic);
+			kfree(kvm->arch.vioapic);
+			goto out;
+		}
 		break;
 	case KVM_CREATE_PIT:
 		mutex_lock(&kvm->lock);
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 73f348066866..7a5d73a8d4fa 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -398,6 +398,38 @@ struct kvm_trace_rec {
 #endif
 #if defined(CONFIG_X86)
 #define KVM_CAP_REINJECT_CONTROL 24
+#endif
+#if defined(CONFIG_X86)||defined(CONFIG_IA64)
+#define KVM_CAP_IRQ_ROUTING 25
+#endif
+
+#ifdef KVM_CAP_IRQ_ROUTING
+
+struct kvm_irq_routing_irqchip {
+	__u32 irqchip;
+	__u32 pin;
+};
+
+/* gsi routing entry types */
+#define KVM_IRQ_ROUTING_IRQCHIP 1
+
+struct kvm_irq_routing_entry {
+	__u32 gsi;
+	__u32 type;
+	__u32 flags;
+	__u32 pad;
+	union {
+		struct kvm_irq_routing_irqchip irqchip;
+		__u32 pad[8];
+	} u;
+};
+
+struct kvm_irq_routing {
+	__u32 nr;
+	__u32 flags;
+	struct kvm_irq_routing_entry entries[0];
+};
+
 #endif
 
 /*
@@ -430,6 +462,7 @@ struct kvm_trace_rec {
 			_IOW(KVMIO,  0x68, struct kvm_coalesced_mmio_zone)
 #define KVM_ASSIGN_PCI_DEVICE _IOR(KVMIO, 0x69, \
 				   struct kvm_assigned_pci_dev)
+#define KVM_SET_GSI_ROUTING       _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
 #define KVM_ASSIGN_IRQ _IOR(KVMIO, 0x70, \
 			    struct kvm_assigned_irq)
 #define KVM_REINJECT_CONTROL      _IO(KVMIO, 0x71)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 99963f36a6db..ce285e01bd57 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -107,6 +107,19 @@ struct kvm_memory_slot {
 	int user_alloc;
 };
 
+struct kvm_kernel_irq_routing_entry {
+	u32 gsi;
+	void (*set)(struct kvm_kernel_irq_routing_entry *e,
+		    struct kvm *kvm, int level);
+	union {
+		struct {
+			unsigned irqchip;
+			unsigned pin;
+		} irqchip;
+	};
+	struct list_head link;
+};
+
 struct kvm {
 	struct mutex lock; /* protects the vcpus array and APIC accesses */
 	spinlock_t mmu_lock;
@@ -128,6 +141,7 @@ struct kvm {
 #endif
 
 #ifdef CONFIG_HAVE_KVM_IRQCHIP
+	struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */
 	struct hlist_head mask_notifier_list;
 #endif
 
@@ -480,4 +494,21 @@ static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_se
 }
 #endif
 
+#ifdef CONFIG_HAVE_KVM_IRQCHIP
+
+#define KVM_MAX_IRQ_ROUTES 1024
+
+int kvm_setup_default_irq_routing(struct kvm *kvm);
+int kvm_set_irq_routing(struct kvm *kvm,
+			const struct kvm_irq_routing_entry *entries,
+			unsigned nr,
+			unsigned flags);
+void kvm_free_irq_routing(struct kvm *kvm);
+
+#else
+
+static inline void kvm_free_irq_routing(struct kvm *kvm) {}
+
+#endif
+
 #endif
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index 5162a411e4d2..a797fa5e6420 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -24,9 +24,24 @@
 
 #include "ioapic.h"
 
+static void kvm_set_pic_irq(struct kvm_kernel_irq_routing_entry *e,
+			    struct kvm *kvm, int level)
+{
+#ifdef CONFIG_X86
+	kvm_pic_set_irq(pic_irqchip(kvm), e->irqchip.pin, level);
+#endif
+}
+
+static void kvm_set_ioapic_irq(struct kvm_kernel_irq_routing_entry *e,
+			       struct kvm *kvm, int level)
+{
+	kvm_ioapic_set_irq(kvm->arch.vioapic, e->irqchip.pin, level);
+}
+
 /* This should be called with the kvm->lock mutex held */
 void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
 {
+	struct kvm_kernel_irq_routing_entry *e;
 	unsigned long *irq_state = (unsigned long *)&kvm->arch.irq_states[irq];
 
 	/* Logical OR for level trig interrupt */
@@ -39,10 +54,9 @@ void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
 	 * IOAPIC.  So set the bit in both. The guest will ignore
 	 * writes to the unused one.
 	 */
-	kvm_ioapic_set_irq(kvm->arch.vioapic, irq, !!(*irq_state));
-#ifdef CONFIG_X86
-	kvm_pic_set_irq(pic_irqchip(kvm), irq, !!(*irq_state));
-#endif
+	list_for_each_entry(e, &kvm->irq_routing, link)
+		if (e->gsi == irq)
+			e->set(e, kvm, !!(*irq_state));
 }
 
 void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi)
@@ -123,3 +137,149 @@ void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask)
 			kimn->func(kimn, mask);
 }
 
+static void __kvm_free_irq_routing(struct list_head *irq_routing)
+{
+	struct kvm_kernel_irq_routing_entry *e, *n;
+
+	list_for_each_entry_safe(e, n, irq_routing, link)
+		kfree(e);
+}
+
+void kvm_free_irq_routing(struct kvm *kvm)
+{
+	__kvm_free_irq_routing(&kvm->irq_routing);
+}
+
+int setup_routing_entry(struct kvm_kernel_irq_routing_entry *e,
+			const struct kvm_irq_routing_entry *ue)
+{
+	int r = -EINVAL;
+	int delta;
+
+	e->gsi = ue->gsi;
+	switch (ue->type) {
+	case KVM_IRQ_ROUTING_IRQCHIP:
+		delta = 0;
+		switch (ue->u.irqchip.irqchip) {
+		case KVM_IRQCHIP_PIC_MASTER:
+			e->set = kvm_set_pic_irq;
+			break;
+		case KVM_IRQCHIP_PIC_SLAVE:
+				e->set = kvm_set_pic_irq;
+			delta = 8;
+			break;
+		case KVM_IRQCHIP_IOAPIC:
+				e->set = kvm_set_ioapic_irq;
+			break;
+		default:
+			goto out;
+		}
+		e->irqchip.irqchip = ue->u.irqchip.irqchip;
+		e->irqchip.pin = ue->u.irqchip.pin + delta;
+		break;
+	default:
+		goto out;
+	}
+	r = 0;
+out:
+	return r;
+}
+
+
+int kvm_set_irq_routing(struct kvm *kvm,
+			const struct kvm_irq_routing_entry *ue,
+			unsigned nr,
+			unsigned flags)
+{
+	struct list_head irq_list = LIST_HEAD_INIT(irq_list);
+	struct list_head tmp = LIST_HEAD_INIT(tmp);
+	struct kvm_kernel_irq_routing_entry *e = NULL;
+	unsigned i;
+	int r;
+
+	for (i = 0; i < nr; ++i) {
+		r = -EINVAL;
+		if (ue->gsi >= KVM_MAX_IRQ_ROUTES)
+			goto out;
+		if (ue->flags)
+			goto out;
+		r = -ENOMEM;
+		e = kzalloc(sizeof(*e), GFP_KERNEL);
+		if (!e)
+			goto out;
+		r = setup_routing_entry(e, ue);
+		if (r)
+			goto out;
+		++ue;
+		list_add(&e->link, &irq_list);
+		e = NULL;
+	}
+
+	mutex_lock(&kvm->lock);
+	list_splice(&kvm->irq_routing, &tmp);
+	INIT_LIST_HEAD(&kvm->irq_routing);
+	list_splice(&irq_list, &kvm->irq_routing);
+	INIT_LIST_HEAD(&irq_list);
+	list_splice(&tmp, &irq_list);
+	mutex_unlock(&kvm->lock);
+
+	r = 0;
+
+out:
+	kfree(e);
+	__kvm_free_irq_routing(&irq_list);
+	return r;
+}
+
+#define IOAPIC_ROUTING_ENTRY(irq) \
+	{ .gsi = irq, .type = KVM_IRQ_ROUTING_IRQCHIP,	\
+	  .u.irqchip.irqchip = KVM_IRQCHIP_IOAPIC, .u.irqchip.pin = (irq) }
+#define ROUTING_ENTRY1(irq) IOAPIC_ROUTING_ENTRY(irq)
+
+#ifdef CONFIG_X86
+#define SELECT_PIC(irq) \
+	((irq) < 8 ? KVM_IRQCHIP_PIC_MASTER : KVM_IRQCHIP_PIC_SLAVE)
+#  define PIC_ROUTING_ENTRY(irq) \
+	{ .gsi = irq, .type = KVM_IRQ_ROUTING_IRQCHIP,	\
+	  .u.irqchip.irqchip = SELECT_PIC(irq), .u.irqchip.pin = (irq) % 8 }
+#  define ROUTING_ENTRY2(irq) \
+	IOAPIC_ROUTING_ENTRY(irq), PIC_ROUTING_ENTRY(irq)
+#else
+#  define ROUTING_ENTRY2(irq) \
+	IOAPIC_ROUTING_ENTRY(irq)
+#endif
+
+static const struct kvm_irq_routing_entry default_routing[] = {
+	ROUTING_ENTRY2(0), ROUTING_ENTRY2(1),
+	ROUTING_ENTRY2(2), ROUTING_ENTRY2(3),
+	ROUTING_ENTRY2(4), ROUTING_ENTRY2(5),
+	ROUTING_ENTRY2(6), ROUTING_ENTRY2(7),
+	ROUTING_ENTRY2(8), ROUTING_ENTRY2(9),
+	ROUTING_ENTRY2(10), ROUTING_ENTRY2(11),
+	ROUTING_ENTRY2(12), ROUTING_ENTRY2(13),
+	ROUTING_ENTRY2(14), ROUTING_ENTRY2(15),
+	ROUTING_ENTRY1(16), ROUTING_ENTRY1(17),
+	ROUTING_ENTRY1(18), ROUTING_ENTRY1(19),
+	ROUTING_ENTRY1(20), ROUTING_ENTRY1(21),
+	ROUTING_ENTRY1(22), ROUTING_ENTRY1(23),
+#ifdef CONFIG_IA64
+	ROUTING_ENTRY1(24), ROUTING_ENTRY1(25),
+	ROUTING_ENTRY1(26), ROUTING_ENTRY1(27),
+	ROUTING_ENTRY1(28), ROUTING_ENTRY1(29),
+	ROUTING_ENTRY1(30), ROUTING_ENTRY1(31),
+	ROUTING_ENTRY1(32), ROUTING_ENTRY1(33),
+	ROUTING_ENTRY1(34), ROUTING_ENTRY1(35),
+	ROUTING_ENTRY1(36), ROUTING_ENTRY1(37),
+	ROUTING_ENTRY1(38), ROUTING_ENTRY1(39),
+	ROUTING_ENTRY1(40), ROUTING_ENTRY1(41),
+	ROUTING_ENTRY1(42), ROUTING_ENTRY1(43),
+	ROUTING_ENTRY1(44), ROUTING_ENTRY1(45),
+	ROUTING_ENTRY1(46), ROUTING_ENTRY1(47),
+#endif
+};
+
+int kvm_setup_default_irq_routing(struct kvm *kvm)
+{
+	return kvm_set_irq_routing(kvm, default_routing,
+				   ARRAY_SIZE(default_routing), 0);
+}
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 786a3ae373b0..c65484b471c6 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -843,6 +843,7 @@ static struct kvm *kvm_create_vm(void)
 	if (IS_ERR(kvm))
 		goto out;
 #ifdef CONFIG_HAVE_KVM_IRQCHIP
+	INIT_LIST_HEAD(&kvm->irq_routing);
 	INIT_HLIST_HEAD(&kvm->mask_notifier_list);
 #endif
 
@@ -926,6 +927,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
 	spin_lock(&kvm_lock);
 	list_del(&kvm->vm_list);
 	spin_unlock(&kvm_lock);
+	kvm_free_irq_routing(kvm);
 	kvm_io_bus_destroy(&kvm->pio_bus);
 	kvm_io_bus_destroy(&kvm->mmio_bus);
 #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
@@ -1945,6 +1947,36 @@ static long kvm_vm_ioctl(struct file *filp,
 			goto out;
 		break;
 	}
+#endif
+#ifdef KVM_CAP_IRQ_ROUTING
+	case KVM_SET_GSI_ROUTING: {
+		struct kvm_irq_routing routing;
+		struct kvm_irq_routing __user *urouting;
+		struct kvm_irq_routing_entry *entries;
+
+		r = -EFAULT;
+		if (copy_from_user(&routing, argp, sizeof(routing)))
+			goto out;
+		r = -EINVAL;
+		if (routing.nr >= KVM_MAX_IRQ_ROUTES)
+			goto out;
+		if (routing.flags)
+			goto out;
+		r = -ENOMEM;
+		entries = vmalloc(routing.nr * sizeof(*entries));
+		if (!entries)
+			goto out;
+		r = -EFAULT;
+		urouting = argp;
+		if (copy_from_user(entries, urouting->entries,
+				   routing.nr * sizeof(*entries)))
+			goto out_free_irq_routing;
+		r = kvm_set_irq_routing(kvm, entries, routing.nr,
+					routing.flags);
+	out_free_irq_routing:
+		vfree(entries);
+		break;
+	}
 #endif
 	default:
 		r = kvm_arch_vm_ioctl(filp, ioctl, arg);
@@ -2012,6 +2044,10 @@ static long kvm_dev_ioctl_check_extension_generic(long arg)
 	case KVM_CAP_USER_MEMORY:
 	case KVM_CAP_DESTROY_MEMORY_REGION_WORKS:
 		return 1;
+#ifdef CONFIG_HAVE_KVM_IRQCHIP
+	case KVM_CAP_IRQ_ROUTING:
+		return 1;
+#endif
 	default:
 		break;
 	}
-- 
cgit v1.2.3


From 91b2ae773d3b168b763237fac33f75b13d891f20 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Mon, 19 Jan 2009 14:57:52 +0200
Subject: KVM: Avoid using CONFIG_ in userspace visible headers

Kconfig symbols are not available in userspace, and are not stripped by
headers-install.  Avoid their use by adding #defines in <asm/kvm.h> to
suit each architecture.

Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/include/asm/kvm.h | 1 +
 include/linux/kvm.h        | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h
index 54bcf2281526..dc3f6cf11704 100644
--- a/arch/x86/include/asm/kvm.h
+++ b/arch/x86/include/asm/kvm.h
@@ -15,6 +15,7 @@
 #define __KVM_HAVE_DEVICE_ASSIGNMENT
 #define __KVM_HAVE_MSI
 #define __KVM_HAVE_USER_NMI
+#define __KVM_HAVE_GUEST_DEBUG
 
 /* Architectural interrupt line count. */
 #define KVM_NR_INTERRUPTS 256
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 7a5d73a8d4fa..869462ca7625 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -393,13 +393,13 @@ struct kvm_trace_rec {
 #ifdef __KVM_HAVE_USER_NMI
 #define KVM_CAP_USER_NMI 22
 #endif
-#if defined(CONFIG_X86)
+#ifdef __KVM_HAVE_GUEST_DEBUG
 #define KVM_CAP_SET_GUEST_DEBUG 23
 #endif
-#if defined(CONFIG_X86)
+#ifdef __KVM_HAVE_PIT
 #define KVM_CAP_REINJECT_CONTROL 24
 #endif
-#if defined(CONFIG_X86)||defined(CONFIG_IA64)
+#ifdef __KVM_HAVE_IOAPIC
 #define KVM_CAP_IRQ_ROUTING 25
 #endif
 
-- 
cgit v1.2.3


From 44882eed2ebe7f75f8cdae5671ab1d6e0fa40dbc Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Tue, 27 Jan 2009 15:12:38 -0200
Subject: KVM: make irq ack notifications aware of routing table

IRQ ack notifications assume an identity mapping between pin->gsi,
which might not be the case with, for example, HPET.

Translate before acking.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Acked-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/i8259.c     |  5 +++--
 arch/x86/kvm/irq.h       |  2 ++
 include/linux/kvm_host.h |  2 +-
 virt/kvm/ioapic.c        | 10 +++++-----
 virt/kvm/irq_comm.c      | 13 ++++++++++---
 5 files changed, 21 insertions(+), 11 deletions(-)

(limited to 'include')

diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 179dcb0103fd..93160375c841 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -49,7 +49,8 @@ static void pic_unlock(struct kvm_pic *s)
 	spin_unlock(&s->lock);
 
 	while (acks) {
-		kvm_notify_acked_irq(kvm, __ffs(acks));
+		kvm_notify_acked_irq(kvm, SELECT_PIC(__ffs(acks)),
+				     __ffs(acks));
 		acks &= acks - 1;
 	}
 
@@ -232,7 +233,7 @@ int kvm_pic_read_irq(struct kvm *kvm)
 	}
 	pic_update_irq(s);
 	pic_unlock(s);
-	kvm_notify_acked_irq(kvm, irq);
+	kvm_notify_acked_irq(kvm, SELECT_PIC(irq), irq);
 
 	return intno;
 }
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 82579ee538d0..9f593188129e 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -32,6 +32,8 @@
 #include "lapic.h"
 
 #define PIC_NUM_PINS 16
+#define SELECT_PIC(irq) \
+	((irq) < 8 ? KVM_IRQCHIP_PIC_MASTER : KVM_IRQCHIP_PIC_SLAVE)
 
 struct kvm;
 struct kvm_vcpu;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ce285e01bd57..c03a0a9a8584 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -352,7 +352,7 @@ void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
 void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
 
 void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
-void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi);
+void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
 void kvm_register_irq_ack_notifier(struct kvm *kvm,
 				   struct kvm_irq_ack_notifier *kian);
 void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian);
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index e85a2bcd2db1..1c986ac59ad6 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -293,20 +293,20 @@ void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
 	}
 }
 
-static void __kvm_ioapic_update_eoi(struct kvm_ioapic *ioapic, int gsi,
+static void __kvm_ioapic_update_eoi(struct kvm_ioapic *ioapic, int pin,
 				    int trigger_mode)
 {
 	union ioapic_redir_entry *ent;
 
-	ent = &ioapic->redirtbl[gsi];
+	ent = &ioapic->redirtbl[pin];
 
-	kvm_notify_acked_irq(ioapic->kvm, gsi);
+	kvm_notify_acked_irq(ioapic->kvm, KVM_IRQCHIP_IOAPIC, pin);
 
 	if (trigger_mode == IOAPIC_LEVEL_TRIG) {
 		ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG);
 		ent->fields.remote_irr = 0;
-		if (!ent->fields.mask && (ioapic->irr & (1 << gsi)))
-			ioapic_service(ioapic, gsi);
+		if (!ent->fields.mask && (ioapic->irr & (1 << pin)))
+			ioapic_service(ioapic, pin);
 	}
 }
 
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index a797fa5e6420..7aa5086c8622 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -59,10 +59,19 @@ void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
 			e->set(e, kvm, !!(*irq_state));
 }
 
-void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi)
+void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin)
 {
+	struct kvm_kernel_irq_routing_entry *e;
 	struct kvm_irq_ack_notifier *kian;
 	struct hlist_node *n;
+	unsigned gsi = pin;
+
+	list_for_each_entry(e, &kvm->irq_routing, link)
+		if (e->irqchip.irqchip == irqchip &&
+		    e->irqchip.pin == pin) {
+			gsi = e->gsi;
+			break;
+		}
 
 	hlist_for_each_entry(kian, n, &kvm->arch.irq_ack_notifier_list, link)
 		if (kian->gsi == gsi)
@@ -237,8 +246,6 @@ out:
 #define ROUTING_ENTRY1(irq) IOAPIC_ROUTING_ENTRY(irq)
 
 #ifdef CONFIG_X86
-#define SELECT_PIC(irq) \
-	((irq) < 8 ? KVM_IRQCHIP_PIC_MASTER : KVM_IRQCHIP_PIC_SLAVE)
 #  define PIC_ROUTING_ENTRY(irq) \
 	{ .gsi = irq, .type = KVM_IRQ_ROUTING_IRQCHIP,	\
 	  .u.irqchip.irqchip = SELECT_PIC(irq), .u.irqchip.pin = (irq) % 8 }
-- 
cgit v1.2.3


From 79950e1073150909619b7c0f9a39a2fea83a42d8 Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng@linux.intel.com>
Date: Tue, 10 Feb 2009 13:57:06 +0800
Subject: KVM: Use irq routing API for MSI

Merge MSI userspace interface with IRQ routing table. Notice the API have been
changed, and using IRQ routing table would be the only interface kvm-userspace
supported.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm.h      |  9 ++++++
 include/linux/kvm_host.h |  2 +-
 virt/kvm/irq_comm.c      | 78 +++++++++++++++++++++++++++++++++++++++++++-----
 virt/kvm/kvm_main.c      | 70 ++++---------------------------------------
 4 files changed, 86 insertions(+), 73 deletions(-)

(limited to 'include')

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 869462ca7625..2163b3dd36e7 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -410,8 +410,16 @@ struct kvm_irq_routing_irqchip {
 	__u32 pin;
 };
 
+struct kvm_irq_routing_msi {
+	__u32 address_lo;
+	__u32 address_hi;
+	__u32 data;
+	__u32 pad;
+};
+
 /* gsi routing entry types */
 #define KVM_IRQ_ROUTING_IRQCHIP 1
+#define KVM_IRQ_ROUTING_MSI 2
 
 struct kvm_irq_routing_entry {
 	__u32 gsi;
@@ -420,6 +428,7 @@ struct kvm_irq_routing_entry {
 	__u32 pad;
 	union {
 		struct kvm_irq_routing_irqchip irqchip;
+		struct kvm_irq_routing_msi msi;
 		__u32 pad[8];
 	} u;
 };
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c03a0a9a8584..339eda3ca6ee 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -116,6 +116,7 @@ struct kvm_kernel_irq_routing_entry {
 			unsigned irqchip;
 			unsigned pin;
 		} irqchip;
+		struct msi_msg msi;
 	};
 	struct list_head link;
 };
@@ -327,7 +328,6 @@ struct kvm_assigned_dev_kernel {
 	int host_irq;
 	bool host_irq_disabled;
 	int guest_irq;
-	struct msi_msg guest_msi;
 #define KVM_ASSIGNED_DEV_GUEST_INTX	(1 << 0)
 #define KVM_ASSIGNED_DEV_GUEST_MSI	(1 << 1)
 #define KVM_ASSIGNED_DEV_HOST_INTX	(1 << 8)
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index 7aa5086c8622..6bc7439eff6e 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -20,6 +20,11 @@
  */
 
 #include <linux/kvm_host.h>
+
+#ifdef CONFIG_X86
+#include <asm/msidef.h>
+#endif
+
 #include "irq.h"
 
 #include "ioapic.h"
@@ -38,17 +43,70 @@ static void kvm_set_ioapic_irq(struct kvm_kernel_irq_routing_entry *e,
 	kvm_ioapic_set_irq(kvm->arch.vioapic, e->irqchip.pin, level);
 }
 
+static void kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
+			struct kvm *kvm, int level)
+{
+	int vcpu_id;
+	struct kvm_vcpu *vcpu;
+	struct kvm_ioapic *ioapic = ioapic_irqchip(kvm);
+	int dest_id = (e->msi.address_lo & MSI_ADDR_DEST_ID_MASK)
+			>> MSI_ADDR_DEST_ID_SHIFT;
+	int vector = (e->msi.data & MSI_DATA_VECTOR_MASK)
+			>> MSI_DATA_VECTOR_SHIFT;
+	int dest_mode = test_bit(MSI_ADDR_DEST_MODE_SHIFT,
+				(unsigned long *)&e->msi.address_lo);
+	int trig_mode = test_bit(MSI_DATA_TRIGGER_SHIFT,
+				(unsigned long *)&e->msi.data);
+	int delivery_mode = test_bit(MSI_DATA_DELIVERY_MODE_SHIFT,
+				(unsigned long *)&e->msi.data);
+	u32 deliver_bitmask;
+
+	BUG_ON(!ioapic);
+
+	deliver_bitmask = kvm_ioapic_get_delivery_bitmask(ioapic,
+				dest_id, dest_mode);
+	/* IOAPIC delivery mode value is the same as MSI here */
+	switch (delivery_mode) {
+	case IOAPIC_LOWEST_PRIORITY:
+		vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector,
+				deliver_bitmask);
+		if (vcpu != NULL)
+			kvm_apic_set_irq(vcpu, vector, trig_mode);
+		else
+			printk(KERN_INFO "kvm: null lowest priority vcpu!\n");
+		break;
+	case IOAPIC_FIXED:
+		for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
+			if (!(deliver_bitmask & (1 << vcpu_id)))
+				continue;
+			deliver_bitmask &= ~(1 << vcpu_id);
+			vcpu = ioapic->kvm->vcpus[vcpu_id];
+			if (vcpu)
+				kvm_apic_set_irq(vcpu, vector, trig_mode);
+		}
+		break;
+	default:
+		break;
+	}
+}
+
 /* This should be called with the kvm->lock mutex held */
 void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
 {
 	struct kvm_kernel_irq_routing_entry *e;
-	unsigned long *irq_state = (unsigned long *)&kvm->arch.irq_states[irq];
+	unsigned long *irq_state, sig_level;
+
+	if (irq < KVM_IOAPIC_NUM_PINS) {
+		irq_state = (unsigned long *)&kvm->arch.irq_states[irq];
 
-	/* Logical OR for level trig interrupt */
-	if (level)
-		set_bit(irq_source_id, irq_state);
-	else
-		clear_bit(irq_source_id, irq_state);
+		/* Logical OR for level trig interrupt */
+		if (level)
+			set_bit(irq_source_id, irq_state);
+		else
+			clear_bit(irq_source_id, irq_state);
+		sig_level = !!(*irq_state);
+	} else /* Deal with MSI/MSI-X */
+		sig_level = 1;
 
 	/* Not possible to detect if the guest uses the PIC or the
 	 * IOAPIC.  So set the bit in both. The guest will ignore
@@ -56,7 +114,7 @@ void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
 	 */
 	list_for_each_entry(e, &kvm->irq_routing, link)
 		if (e->gsi == irq)
-			e->set(e, kvm, !!(*irq_state));
+			e->set(e, kvm, sig_level);
 }
 
 void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin)
@@ -186,6 +244,12 @@ int setup_routing_entry(struct kvm_kernel_irq_routing_entry *e,
 		e->irqchip.irqchip = ue->u.irqchip.irqchip;
 		e->irqchip.pin = ue->u.irqchip.pin + delta;
 		break;
+	case KVM_IRQ_ROUTING_MSI:
+		e->set = kvm_set_msi;
+		e->msi.address_lo = ue->u.msi.address_lo;
+		e->msi.address_hi = ue->u.msi.address_hi;
+		e->msi.data = ue->u.msi.data;
+		break;
 	default:
 		goto out;
 	}
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c65484b471c6..266bdaf0ce44 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -47,10 +47,6 @@
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 
-#ifdef CONFIG_X86
-#include <asm/msidef.h>
-#endif
-
 #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
 #include "coalesced_mmio.h"
 #endif
@@ -85,57 +81,6 @@ static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl,
 static bool kvm_rebooting;
 
 #ifdef KVM_CAP_DEVICE_ASSIGNMENT
-
-#ifdef CONFIG_X86
-static void assigned_device_msi_dispatch(struct kvm_assigned_dev_kernel *dev)
-{
-	int vcpu_id;
-	struct kvm_vcpu *vcpu;
-	struct kvm_ioapic *ioapic = ioapic_irqchip(dev->kvm);
-	int dest_id = (dev->guest_msi.address_lo & MSI_ADDR_DEST_ID_MASK)
-			>> MSI_ADDR_DEST_ID_SHIFT;
-	int vector = (dev->guest_msi.data & MSI_DATA_VECTOR_MASK)
-			>> MSI_DATA_VECTOR_SHIFT;
-	int dest_mode = test_bit(MSI_ADDR_DEST_MODE_SHIFT,
-				(unsigned long *)&dev->guest_msi.address_lo);
-	int trig_mode = test_bit(MSI_DATA_TRIGGER_SHIFT,
-				(unsigned long *)&dev->guest_msi.data);
-	int delivery_mode = test_bit(MSI_DATA_DELIVERY_MODE_SHIFT,
-				(unsigned long *)&dev->guest_msi.data);
-	u32 deliver_bitmask;
-
-	BUG_ON(!ioapic);
-
-	deliver_bitmask = kvm_ioapic_get_delivery_bitmask(ioapic,
-				dest_id, dest_mode);
-	/* IOAPIC delivery mode value is the same as MSI here */
-	switch (delivery_mode) {
-	case IOAPIC_LOWEST_PRIORITY:
-		vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector,
-				deliver_bitmask);
-		if (vcpu != NULL)
-			kvm_apic_set_irq(vcpu, vector, trig_mode);
-		else
-			printk(KERN_INFO "kvm: null lowest priority vcpu!\n");
-		break;
-	case IOAPIC_FIXED:
-		for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
-			if (!(deliver_bitmask & (1 << vcpu_id)))
-				continue;
-			deliver_bitmask &= ~(1 << vcpu_id);
-			vcpu = ioapic->kvm->vcpus[vcpu_id];
-			if (vcpu)
-				kvm_apic_set_irq(vcpu, vector, trig_mode);
-		}
-		break;
-	default:
-		printk(KERN_INFO "kvm: unsupported MSI delivery mode\n");
-	}
-}
-#else
-static void assigned_device_msi_dispatch(struct kvm_assigned_dev_kernel *dev) {}
-#endif
-
 static struct kvm_assigned_dev_kernel *kvm_find_assigned_dev(struct list_head *head,
 						      int assigned_dev_id)
 {
@@ -162,13 +107,10 @@ static void kvm_assigned_dev_interrupt_work_handler(struct work_struct *work)
 	 * finer-grained lock, update this
 	 */
 	mutex_lock(&assigned_dev->kvm->lock);
-	if (assigned_dev->irq_requested_type & KVM_ASSIGNED_DEV_GUEST_INTX)
-		kvm_set_irq(assigned_dev->kvm,
-			    assigned_dev->irq_source_id,
-			    assigned_dev->guest_irq, 1);
-	else if (assigned_dev->irq_requested_type &
-				KVM_ASSIGNED_DEV_GUEST_MSI) {
-		assigned_device_msi_dispatch(assigned_dev);
+	kvm_set_irq(assigned_dev->kvm, assigned_dev->irq_source_id,
+		    assigned_dev->guest_irq, 1);
+
+	if (assigned_dev->irq_requested_type & KVM_ASSIGNED_DEV_GUEST_MSI) {
 		enable_irq(assigned_dev->host_irq);
 		assigned_dev->host_irq_disabled = false;
 	}
@@ -331,17 +273,15 @@ static int assigned_device_update_msi(struct kvm *kvm,
 {
 	int r;
 
+	adev->guest_irq = airq->guest_irq;
 	if (airq->flags & KVM_DEV_IRQ_ASSIGN_ENABLE_MSI) {
 		/* x86 don't care upper address of guest msi message addr */
 		adev->irq_requested_type |= KVM_ASSIGNED_DEV_GUEST_MSI;
 		adev->irq_requested_type &= ~KVM_ASSIGNED_DEV_GUEST_INTX;
-		adev->guest_msi.address_lo = airq->guest_msi.addr_lo;
-		adev->guest_msi.data = airq->guest_msi.data;
 		adev->ack_notifier.gsi = -1;
 	} else if (msi2intx) {
 		adev->irq_requested_type |= KVM_ASSIGNED_DEV_GUEST_INTX;
 		adev->irq_requested_type &= ~KVM_ASSIGNED_DEV_GUEST_MSI;
-		adev->guest_irq = airq->guest_irq;
 		adev->ack_notifier.gsi = airq->guest_irq;
 	} else {
 		/*
-- 
cgit v1.2.3


From c807660407a695f390034e402edfe544a1d2e40c Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 4 Feb 2009 17:52:04 +0100
Subject: KVM: Fix kvmclock on !constant_tsc boxes

kvmclock currently falls apart on machines without constant tsc.
This patch fixes it.  Changes:

  * keep tsc frequency in a per-cpu variable.
  * handle kvmclock update using a new request flag, thus checking
    whenever we need an update each time we enter guest context.
  * use a cpufreq notifier to track frequency changes and force
    kvmclock updates.
  * send ipis to kick cpu out of guest context if needed to make
    sure the guest doesn't see stale values.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kvm/x86.c       | 103 ++++++++++++++++++++++++++++++++++++++++++-----
 include/linux/kvm_host.h |   1 +
 2 files changed, 95 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8f83590b47dd..05d7be89b5eb 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -36,6 +36,7 @@
 #include <linux/highmem.h>
 #include <linux/iommu.h>
 #include <linux/intel-iommu.h>
+#include <linux/cpufreq.h>
 
 #include <asm/uaccess.h>
 #include <asm/msr.h>
@@ -617,6 +618,8 @@ static void kvm_set_time_scale(uint32_t tsc_khz, struct pvclock_vcpu_time_info *
 		 hv_clock->tsc_to_system_mul);
 }
 
+static DEFINE_PER_CPU(unsigned long, cpu_tsc_khz);
+
 static void kvm_write_guest_time(struct kvm_vcpu *v)
 {
 	struct timespec ts;
@@ -627,9 +630,9 @@ static void kvm_write_guest_time(struct kvm_vcpu *v)
 	if ((!vcpu->time_page))
 		return;
 
-	if (unlikely(vcpu->hv_clock_tsc_khz != tsc_khz)) {
-		kvm_set_time_scale(tsc_khz, &vcpu->hv_clock);
-		vcpu->hv_clock_tsc_khz = tsc_khz;
+	if (unlikely(vcpu->hv_clock_tsc_khz != __get_cpu_var(cpu_tsc_khz))) {
+		kvm_set_time_scale(__get_cpu_var(cpu_tsc_khz), &vcpu->hv_clock);
+		vcpu->hv_clock_tsc_khz = __get_cpu_var(cpu_tsc_khz);
 	}
 
 	/* Keep irq disabled to prevent changes to the clock */
@@ -660,6 +663,16 @@ static void kvm_write_guest_time(struct kvm_vcpu *v)
 	mark_page_dirty(v->kvm, vcpu->time >> PAGE_SHIFT);
 }
 
+static int kvm_request_guest_time_update(struct kvm_vcpu *v)
+{
+	struct kvm_vcpu_arch *vcpu = &v->arch;
+
+	if (!vcpu->time_page)
+		return 0;
+	set_bit(KVM_REQ_KVMCLOCK_UPDATE, &v->requests);
+	return 1;
+}
+
 static bool msr_mtrr_valid(unsigned msr)
 {
 	switch (msr) {
@@ -790,7 +803,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 			vcpu->arch.time_page = NULL;
 		}
 
-		kvm_write_guest_time(vcpu);
+		kvm_request_guest_time_update(vcpu);
 		break;
 	}
 	default:
@@ -1000,6 +1013,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_MMU_SHADOW_CACHE_CONTROL:
 	case KVM_CAP_SET_TSS_ADDR:
 	case KVM_CAP_EXT_CPUID:
+	case KVM_CAP_CLOCKSOURCE:
 	case KVM_CAP_PIT:
 	case KVM_CAP_NOP_IO_DELAY:
 	case KVM_CAP_MP_STATE:
@@ -1025,9 +1039,6 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_IOMMU:
 		r = iommu_found();
 		break;
-	case KVM_CAP_CLOCKSOURCE:
-		r = boot_cpu_has(X86_FEATURE_CONSTANT_TSC);
-		break;
 	default:
 		r = 0;
 		break;
@@ -1098,7 +1109,7 @@ out:
 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 {
 	kvm_x86_ops->vcpu_load(vcpu, cpu);
-	kvm_write_guest_time(vcpu);
+	kvm_request_guest_time_update(vcpu);
 }
 
 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
@@ -2642,9 +2653,72 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
 }
 EXPORT_SYMBOL_GPL(kvm_emulate_pio_string);
 
+static void bounce_off(void *info)
+{
+	/* nothing */
+}
+
+static unsigned int  ref_freq;
+static unsigned long tsc_khz_ref;
+
+static int kvmclock_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
+				     void *data)
+{
+	struct cpufreq_freqs *freq = data;
+	struct kvm *kvm;
+	struct kvm_vcpu *vcpu;
+	int i, send_ipi = 0;
+
+	if (!ref_freq)
+		ref_freq = freq->old;
+
+	if (val == CPUFREQ_PRECHANGE && freq->old > freq->new)
+		return 0;
+	if (val == CPUFREQ_POSTCHANGE && freq->old < freq->new)
+		return 0;
+	per_cpu(cpu_tsc_khz, freq->cpu) = cpufreq_scale(tsc_khz_ref, ref_freq, freq->new);
+
+	spin_lock(&kvm_lock);
+	list_for_each_entry(kvm, &vm_list, vm_list) {
+		for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+			vcpu = kvm->vcpus[i];
+			if (!vcpu)
+				continue;
+			if (vcpu->cpu != freq->cpu)
+				continue;
+			if (!kvm_request_guest_time_update(vcpu))
+				continue;
+			if (vcpu->cpu != smp_processor_id())
+				send_ipi++;
+		}
+	}
+	spin_unlock(&kvm_lock);
+
+	if (freq->old < freq->new && send_ipi) {
+		/*
+		 * We upscale the frequency.  Must make the guest
+		 * doesn't see old kvmclock values while running with
+		 * the new frequency, otherwise we risk the guest sees
+		 * time go backwards.
+		 *
+		 * In case we update the frequency for another cpu
+		 * (which might be in guest context) send an interrupt
+		 * to kick the cpu out of guest context.  Next time
+		 * guest context is entered kvmclock will be updated,
+		 * so the guest will not see stale values.
+		 */
+		smp_call_function_single(freq->cpu, bounce_off, NULL, 1);
+	}
+	return 0;
+}
+
+static struct notifier_block kvmclock_cpufreq_notifier_block = {
+        .notifier_call  = kvmclock_cpufreq_notifier
+};
+
 int kvm_arch_init(void *opaque)
 {
-	int r;
+	int r, cpu;
 	struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
 
 	if (kvm_x86_ops) {
@@ -2675,6 +2749,15 @@ int kvm_arch_init(void *opaque)
 	kvm_mmu_set_base_ptes(PT_PRESENT_MASK);
 	kvm_mmu_set_mask_ptes(PT_USER_MASK, PT_ACCESSED_MASK,
 			PT_DIRTY_MASK, PT64_NX_MASK, 0, 0);
+
+	for_each_possible_cpu(cpu)
+		per_cpu(cpu_tsc_khz, cpu) = tsc_khz;
+	if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) {
+		tsc_khz_ref = tsc_khz;
+		cpufreq_register_notifier(&kvmclock_cpufreq_notifier_block,
+					  CPUFREQ_TRANSITION_NOTIFIER);
+	}
+
 	return 0;
 
 out:
@@ -3010,6 +3093,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	if (vcpu->requests) {
 		if (test_and_clear_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests))
 			__kvm_migrate_timers(vcpu);
+		if (test_and_clear_bit(KVM_REQ_KVMCLOCK_UPDATE, &vcpu->requests))
+			kvm_write_guest_time(vcpu);
 		if (test_and_clear_bit(KVM_REQ_MMU_SYNC, &vcpu->requests))
 			kvm_mmu_sync_roots(vcpu);
 		if (test_and_clear_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests))
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 339eda3ca6ee..18b4df8264cf 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -37,6 +37,7 @@
 #define KVM_REQ_PENDING_TIMER      5
 #define KVM_REQ_UNHALT             6
 #define KVM_REQ_MMU_SYNC           7
+#define KVM_REQ_KVMCLOCK_UPDATE    8
 
 #define KVM_USERSPACE_IRQ_SOURCE_ID	0
 
-- 
cgit v1.2.3


From 4925663a079c77d95d8685228ad6675fc5639c8e Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Wed, 4 Feb 2009 17:28:14 +0200
Subject: KVM: Report IRQ injection status to userspace.

IRQ injection status is either -1 (if there was no CPU found
that should except the interrupt because IRQ was masked or
ioapic was misconfigured or ...) or >= 0 in that case the
number indicates to how many CPUs interrupt was injected.
If the value is 0 it means that the interrupt was coalesced
and probably should be reinjected.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/ia64/kvm/kvm-ia64.c        | 12 ++++++++++--
 arch/x86/include/asm/kvm_host.h |  2 +-
 arch/x86/kvm/i8259.c            | 18 +++++++++++++-----
 arch/x86/kvm/x86.c              | 13 +++++++++++--
 include/linux/kvm.h             |  7 ++++++-
 include/linux/kvm_host.h        |  4 ++--
 virt/kvm/ioapic.c               | 23 ++++++++++++++++-------
 virt/kvm/ioapic.h               |  2 +-
 virt/kvm/irq_comm.c             | 41 ++++++++++++++++++++++++++++-------------
 9 files changed, 88 insertions(+), 34 deletions(-)

(limited to 'include')

diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 9c77e3939e97..076b00d1dbff 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -182,7 +182,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 	switch (ext) {
 	case KVM_CAP_IRQCHIP:
 	case KVM_CAP_MP_STATE:
-
+	case KVM_CAP_IRQ_INJECT_STATUS:
 		r = 1;
 		break;
 	case KVM_CAP_COALESCED_MMIO:
@@ -927,6 +927,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
 			goto out;
 		}
 		break;
+	case KVM_IRQ_LINE_STATUS:
 	case KVM_IRQ_LINE: {
 		struct kvm_irq_level irq_event;
 
@@ -934,10 +935,17 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		if (copy_from_user(&irq_event, argp, sizeof irq_event))
 			goto out;
 		if (irqchip_in_kernel(kvm)) {
+			__s32 status;
 			mutex_lock(&kvm->lock);
-			kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
+			status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
 				    irq_event.irq, irq_event.level);
 			mutex_unlock(&kvm->lock);
+			if (ioctl == KVM_IRQ_LINE_STATUS) {
+				irq_event.status = status;
+				if (copy_to_user(argp, &irq_event,
+							sizeof irq_event))
+					goto out;
+			}
 			r = 0;
 		}
 		break;
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 55fd4c5fd388..f0faf58044ff 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -616,7 +616,7 @@ void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
 void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,
 			   u32 error_code);
 
-void kvm_pic_set_irq(void *opaque, int irq, int level);
+int kvm_pic_set_irq(void *opaque, int irq, int level);
 
 void kvm_inject_nmi(struct kvm_vcpu *vcpu);
 
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 93160375c841..b4e662e94ddc 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -77,12 +77,13 @@ void kvm_pic_clear_isr_ack(struct kvm *kvm)
 /*
  * set irq level. If an edge is detected, then the IRR is set to 1
  */
-static inline void pic_set_irq1(struct kvm_kpic_state *s, int irq, int level)
+static inline int pic_set_irq1(struct kvm_kpic_state *s, int irq, int level)
 {
-	int mask;
+	int mask, ret = 1;
 	mask = 1 << irq;
 	if (s->elcr & mask)	/* level triggered */
 		if (level) {
+			ret = !(s->irr & mask);
 			s->irr |= mask;
 			s->last_irr |= mask;
 		} else {
@@ -91,11 +92,15 @@ static inline void pic_set_irq1(struct kvm_kpic_state *s, int irq, int level)
 		}
 	else	/* edge triggered */
 		if (level) {
-			if ((s->last_irr & mask) == 0)
+			if ((s->last_irr & mask) == 0) {
+				ret = !(s->irr & mask);
 				s->irr |= mask;
+			}
 			s->last_irr |= mask;
 		} else
 			s->last_irr &= ~mask;
+
+	return (s->imr & mask) ? -1 : ret;
 }
 
 /*
@@ -172,16 +177,19 @@ void kvm_pic_update_irq(struct kvm_pic *s)
 	pic_unlock(s);
 }
 
-void kvm_pic_set_irq(void *opaque, int irq, int level)
+int kvm_pic_set_irq(void *opaque, int irq, int level)
 {
 	struct kvm_pic *s = opaque;
+	int ret = -1;
 
 	pic_lock(s);
 	if (irq >= 0 && irq < PIC_NUM_PINS) {
-		pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
+		ret = pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
 		pic_update_irq(s);
 	}
 	pic_unlock(s);
+
+	return ret;
 }
 
 /*
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 05d7be89b5eb..e4db5be7c953 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1019,6 +1019,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_MP_STATE:
 	case KVM_CAP_SYNC_MMU:
 	case KVM_CAP_REINJECT_CONTROL:
+	case KVM_CAP_IRQ_INJECT_STATUS:
 		r = 1;
 		break;
 	case KVM_CAP_COALESCED_MMIO:
@@ -1877,6 +1878,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
 	create_pit_unlock:
 		mutex_unlock(&kvm->lock);
 		break;
+	case KVM_IRQ_LINE_STATUS:
 	case KVM_IRQ_LINE: {
 		struct kvm_irq_level irq_event;
 
@@ -1884,10 +1886,17 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		if (copy_from_user(&irq_event, argp, sizeof irq_event))
 			goto out;
 		if (irqchip_in_kernel(kvm)) {
+			__s32 status;
 			mutex_lock(&kvm->lock);
-			kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
-				    irq_event.irq, irq_event.level);
+			status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
+					irq_event.irq, irq_event.level);
 			mutex_unlock(&kvm->lock);
+			if (ioctl == KVM_IRQ_LINE_STATUS) {
+				irq_event.status = status;
+				if (copy_to_user(argp, &irq_event,
+							sizeof irq_event))
+					goto out;
+			}
 			r = 0;
 		}
 		break;
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 2163b3dd36e7..dd48225d1824 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -48,7 +48,10 @@ struct kvm_irq_level {
 	 * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
 	 * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
 	 */
-	__u32 irq;
+	union {
+		__u32 irq;
+		__s32 status;
+	};
 	__u32 level;
 };
 
@@ -402,6 +405,7 @@ struct kvm_trace_rec {
 #ifdef __KVM_HAVE_IOAPIC
 #define KVM_CAP_IRQ_ROUTING 25
 #endif
+#define KVM_CAP_IRQ_INJECT_STATUS 26
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -465,6 +469,7 @@ struct kvm_irq_routing {
 #define KVM_CREATE_PIT		  _IO(KVMIO,  0x64)
 #define KVM_GET_PIT		  _IOWR(KVMIO, 0x65, struct kvm_pit_state)
 #define KVM_SET_PIT		  _IOR(KVMIO,  0x66, struct kvm_pit_state)
+#define KVM_IRQ_LINE_STATUS	  _IOWR(KVMIO, 0x67, struct kvm_irq_level)
 #define KVM_REGISTER_COALESCED_MMIO \
 			_IOW(KVMIO,  0x67, struct kvm_coalesced_mmio_zone)
 #define KVM_UNREGISTER_COALESCED_MMIO \
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 18b4df8264cf..894a56e365e8 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -110,7 +110,7 @@ struct kvm_memory_slot {
 
 struct kvm_kernel_irq_routing_entry {
 	u32 gsi;
-	void (*set)(struct kvm_kernel_irq_routing_entry *e,
+	int (*set)(struct kvm_kernel_irq_routing_entry *e,
 		    struct kvm *kvm, int level);
 	union {
 		struct {
@@ -352,7 +352,7 @@ void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
 				      struct kvm_irq_mask_notifier *kimn);
 void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
 
-void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
+int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
 void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
 void kvm_register_irq_ack_notifier(struct kvm *kvm,
 				   struct kvm_irq_ack_notifier *kian);
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 1c986ac59ad6..c3b99def9cbc 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -83,19 +83,22 @@ static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
 	return result;
 }
 
-static void ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx)
+static int ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx)
 {
 	union ioapic_redir_entry *pent;
+	int injected = -1;
 
 	pent = &ioapic->redirtbl[idx];
 
 	if (!pent->fields.mask) {
-		int injected = ioapic_deliver(ioapic, idx);
+		injected = ioapic_deliver(ioapic, idx);
 		if (injected && pent->fields.trig_mode == IOAPIC_LEVEL_TRIG)
 			pent->fields.remote_irr = 1;
 	}
 	if (!pent->fields.trig_mode)
 		ioapic->irr &= ~(1 << idx);
+
+	return injected;
 }
 
 static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
@@ -207,7 +210,7 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
 	u8 trig_mode = ioapic->redirtbl[irq].fields.trig_mode;
 	u32 deliver_bitmask;
 	struct kvm_vcpu *vcpu;
-	int vcpu_id, r = 0;
+	int vcpu_id, r = -1;
 
 	ioapic_debug("dest=%x dest_mode=%x delivery_mode=%x "
 		     "vector=%x trig_mode=%x\n",
@@ -247,7 +250,9 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
 			deliver_bitmask &= ~(1 << vcpu_id);
 			vcpu = ioapic->kvm->vcpus[vcpu_id];
 			if (vcpu) {
-				r = ioapic_inj_irq(ioapic, vcpu, vector,
+				if (r < 0)
+					r = 0;
+				r += ioapic_inj_irq(ioapic, vcpu, vector,
 					       trig_mode, delivery_mode);
 			}
 		}
@@ -258,8 +263,10 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
 				continue;
 			deliver_bitmask &= ~(1 << vcpu_id);
 			vcpu = ioapic->kvm->vcpus[vcpu_id];
-			if (vcpu)
+			if (vcpu) {
 				ioapic_inj_nmi(vcpu);
+				r = 1;
+			}
 			else
 				ioapic_debug("NMI to vcpu %d failed\n",
 						vcpu->vcpu_id);
@@ -273,11 +280,12 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
 	return r;
 }
 
-void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
+int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
 {
 	u32 old_irr = ioapic->irr;
 	u32 mask = 1 << irq;
 	union ioapic_redir_entry entry;
+	int ret = 1;
 
 	if (irq >= 0 && irq < IOAPIC_NUM_PINS) {
 		entry = ioapic->redirtbl[irq];
@@ -288,9 +296,10 @@ void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
 			ioapic->irr |= mask;
 			if ((!entry.fields.trig_mode && old_irr != ioapic->irr)
 			    || !entry.fields.remote_irr)
-				ioapic_service(ioapic, irq);
+				ret = ioapic_service(ioapic, irq);
 		}
 	}
+	return ret;
 }
 
 static void __kvm_ioapic_update_eoi(struct kvm_ioapic *ioapic, int pin,
diff --git a/virt/kvm/ioapic.h b/virt/kvm/ioapic.h
index 49c9581d2586..a34bd5e6436b 100644
--- a/virt/kvm/ioapic.h
+++ b/virt/kvm/ioapic.h
@@ -83,7 +83,7 @@ struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
 				       unsigned long bitmap);
 void kvm_ioapic_update_eoi(struct kvm *kvm, int vector, int trigger_mode);
 int kvm_ioapic_init(struct kvm *kvm);
-void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
+int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
 void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
 u32 kvm_ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest,
 				u8 dest_mode);
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index 6bc7439eff6e..be8aba791554 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -29,22 +29,24 @@
 
 #include "ioapic.h"
 
-static void kvm_set_pic_irq(struct kvm_kernel_irq_routing_entry *e,
-			    struct kvm *kvm, int level)
+static int kvm_set_pic_irq(struct kvm_kernel_irq_routing_entry *e,
+			   struct kvm *kvm, int level)
 {
 #ifdef CONFIG_X86
-	kvm_pic_set_irq(pic_irqchip(kvm), e->irqchip.pin, level);
+	return kvm_pic_set_irq(pic_irqchip(kvm), e->irqchip.pin, level);
+#else
+	return -1;
 #endif
 }
 
-static void kvm_set_ioapic_irq(struct kvm_kernel_irq_routing_entry *e,
-			       struct kvm *kvm, int level)
+static int kvm_set_ioapic_irq(struct kvm_kernel_irq_routing_entry *e,
+			      struct kvm *kvm, int level)
 {
-	kvm_ioapic_set_irq(kvm->arch.vioapic, e->irqchip.pin, level);
+	return kvm_ioapic_set_irq(kvm->arch.vioapic, e->irqchip.pin, level);
 }
 
-static void kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
-			struct kvm *kvm, int level)
+static int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
+		       struct kvm *kvm, int level)
 {
 	int vcpu_id;
 	struct kvm_vcpu *vcpu;
@@ -88,13 +90,20 @@ static void kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
 	default:
 		break;
 	}
+	return 1;
 }
 
-/* This should be called with the kvm->lock mutex held */
-void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
+/* This should be called with the kvm->lock mutex held
+ * Return value:
+ *  < 0   Interrupt was ignored (masked or not delivered for other reasons)
+ *  = 0   Interrupt was coalesced (previous irq is still pending)
+ *  > 0   Number of CPUs interrupt was delivered to
+ */
+int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
 {
 	struct kvm_kernel_irq_routing_entry *e;
 	unsigned long *irq_state, sig_level;
+	int ret = -1;
 
 	if (irq < KVM_IOAPIC_NUM_PINS) {
 		irq_state = (unsigned long *)&kvm->arch.irq_states[irq];
@@ -113,8 +122,14 @@ void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
 	 * writes to the unused one.
 	 */
 	list_for_each_entry(e, &kvm->irq_routing, link)
-		if (e->gsi == irq)
-			e->set(e, kvm, sig_level);
+		if (e->gsi == irq) {
+			int r = e->set(e, kvm, sig_level);
+			if (r < 0)
+				continue;
+
+			ret = r + ((ret < 0) ? 0 : ret);
+		}
+	return ret;
 }
 
 void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin)
@@ -232,7 +247,7 @@ int setup_routing_entry(struct kvm_kernel_irq_routing_entry *e,
 			e->set = kvm_set_pic_irq;
 			break;
 		case KVM_IRQCHIP_PIC_SLAVE:
-				e->set = kvm_set_pic_irq;
+			e->set = kvm_set_pic_irq;
 			delta = 8;
 			break;
 		case KVM_IRQCHIP_IOAPIC:
-- 
cgit v1.2.3


From 2df8a40bccf5999261d0d3a82eac5a77678e61bd Mon Sep 17 00:00:00 2001
From: Weidong Han <weidong.han@intel.com>
Date: Fri, 13 Feb 2009 10:50:56 +0800
Subject: KVM: define KVM_CAP_DEVICE_DEASSIGNMENT

define KVM_CAP_DEVICE_DEASSIGNMENT and KVM_DEASSIGN_PCI_DEVICE
for device deassignment.

the ioctl has been already implemented in the
commit: 0a920356748df4fb06e86c21c23d2ed6d31d37ad

Acked-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include')

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index dd48225d1824..0d94b274c3ae 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -406,6 +406,9 @@ struct kvm_trace_rec {
 #define KVM_CAP_IRQ_ROUTING 25
 #endif
 #define KVM_CAP_IRQ_INJECT_STATUS 26
+#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
+#define KVM_CAP_DEVICE_DEASSIGNMENT 27
+#endif
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -480,6 +483,8 @@ struct kvm_irq_routing {
 #define KVM_ASSIGN_IRQ _IOR(KVMIO, 0x70, \
 			    struct kvm_assigned_irq)
 #define KVM_REINJECT_CONTROL      _IO(KVMIO, 0x71)
+#define KVM_DEASSIGN_PCI_DEVICE _IOR(KVMIO, 0x72, \
+				     struct kvm_assigned_pci_dev)
 
 /*
  * ioctls for vcpu fds
-- 
cgit v1.2.3


From bc7a8660df62da3fb5cad025322eda75fbee8731 Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng@linux.intel.com>
Date: Tue, 17 Mar 2009 19:27:19 +0800
Subject: KVM: Correct deassign device ioctl to IOW

It's IOR by mistake, so fix it before release.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 include/linux/kvm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 0d94b274c3ae..311a073afe8a 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -483,7 +483,7 @@ struct kvm_irq_routing {
 #define KVM_ASSIGN_IRQ _IOR(KVMIO, 0x70, \
 			    struct kvm_assigned_irq)
 #define KVM_REINJECT_CONTROL      _IO(KVMIO, 0x71)
-#define KVM_DEASSIGN_PCI_DEVICE _IOR(KVMIO, 0x72, \
+#define KVM_DEASSIGN_PCI_DEVICE _IOW(KVMIO, 0x72, \
 				     struct kvm_assigned_pci_dev)
 
 /*
-- 
cgit v1.2.3


From f057f6cdf64175db1151b1f5d110e29904f119a1 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Mon, 12 Jan 2009 10:43:39 +0000
Subject: GFS2: Merge lock_dlm module into GFS2

This is the big patch that I've been working on for some time
now. There are many reasons for wanting to make this change
such as:
 o Reducing overhead by eliminating duplicated fields between structures
 o Simplifcation of the code (reduces the code size by a fair bit)
 o The locking interface is now the DLM interface itself as proposed
   some time ago.
 o Fewer lookups of glocks when processing replies from the DLM
 o Fewer memory allocations/deallocations for each glock
 o Scope to do further optimisations in the future (but this patch is
   more than big enough for now!)

Please note that (a) this patch relates to the lock_dlm module and
not the DLM itself, that is still a separate module; and (b) that
we retain the ability to build GFS2 as a standalone single node
filesystem with out requiring the DLM.

This patch needs a lot of testing, hence my keeping it I restarted
my -git tree after the last merge window. That way, this has the maximum
exposure before its merged. This is (modulo a few minor bug fixes) the
same patch that I've been posting on and off the the last three months
and its passed a number of different tests so far.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/Kconfig                |  17 +-
 fs/gfs2/Makefile               |   4 +-
 fs/gfs2/acl.c                  |   1 -
 fs/gfs2/bmap.c                 |   1 -
 fs/gfs2/dir.c                  |   1 -
 fs/gfs2/eaops.c                |   1 -
 fs/gfs2/eattr.c                |   1 -
 fs/gfs2/glock.c                | 249 +++++----------
 fs/gfs2/glock.h                | 127 +++++++-
 fs/gfs2/glops.c                |  14 -
 fs/gfs2/incore.h               |  59 +++-
 fs/gfs2/inode.c                |  13 +-
 fs/gfs2/inode.h                |  22 +-
 fs/gfs2/lock_dlm.c             | 240 ++++++++++++++
 fs/gfs2/locking.c              | 314 ------------------
 fs/gfs2/locking/dlm/Makefile   |   3 -
 fs/gfs2/locking/dlm/lock.c     | 708 -----------------------------------------
 fs/gfs2/locking/dlm/lock_dlm.h | 166 ----------
 fs/gfs2/locking/dlm/main.c     |  48 ---
 fs/gfs2/locking/dlm/mount.c    | 276 ----------------
 fs/gfs2/locking/dlm/sysfs.c    | 226 -------------
 fs/gfs2/locking/dlm/thread.c   |  68 ----
 fs/gfs2/log.c                  |   1 -
 fs/gfs2/lops.c                 |   1 -
 fs/gfs2/main.c                 |   3 -
 fs/gfs2/meta_io.c              |   1 -
 fs/gfs2/mount.c                |   1 -
 fs/gfs2/ops_address.c          |   1 -
 fs/gfs2/ops_dentry.c           |   1 -
 fs/gfs2/ops_export.c           |   1 -
 fs/gfs2/ops_file.c             |  74 ++---
 fs/gfs2/ops_fstype.c           | 134 +++++---
 fs/gfs2/ops_inode.c            |   1 -
 fs/gfs2/ops_super.c            |   1 -
 fs/gfs2/quota.c                |  12 +-
 fs/gfs2/recovery.c             |  28 +-
 fs/gfs2/rgrp.c                 |   1 -
 fs/gfs2/super.c                |   1 -
 fs/gfs2/sys.c                  | 154 ++++++++-
 fs/gfs2/trans.c                |   3 +-
 fs/gfs2/util.c                 |  11 +-
 include/linux/lm_interface.h   | 277 ----------------
 42 files changed, 819 insertions(+), 2447 deletions(-)
 create mode 100644 fs/gfs2/lock_dlm.c
 delete mode 100644 fs/gfs2/locking.c
 delete mode 100644 fs/gfs2/locking/dlm/Makefile
 delete mode 100644 fs/gfs2/locking/dlm/lock.c
 delete mode 100644 fs/gfs2/locking/dlm/lock_dlm.h
 delete mode 100644 fs/gfs2/locking/dlm/main.c
 delete mode 100644 fs/gfs2/locking/dlm/mount.c
 delete mode 100644 fs/gfs2/locking/dlm/sysfs.c
 delete mode 100644 fs/gfs2/locking/dlm/thread.c
 delete mode 100644 include/linux/lm_interface.h

(limited to 'include')

diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index e563a6449811..3a981b7f64ca 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -1,6 +1,10 @@
 config GFS2_FS
 	tristate "GFS2 file system support"
 	depends on EXPERIMENTAL && (64BIT || LBD)
+	select DLM if GFS2_FS_LOCKING_DLM
+	select CONFIGFS_FS if GFS2_FS_LOCKING_DLM
+	select SYSFS if GFS2_FS_LOCKING_DLM
+	select IP_SCTP if DLM_SCTP
 	select FS_POSIX_ACL
 	select CRC32
 	help
@@ -18,17 +22,16 @@ config GFS2_FS
 	  the locking module below. Documentation and utilities for GFS2 can
 	  be found here: http://sources.redhat.com/cluster
 
-	  The "nolock" lock module is now built in to GFS2 by default.
+	  The "nolock" lock module is now built in to GFS2 by default. If
+	  you want to use the DLM, be sure to enable HOTPLUG and IPv4/6
+	  networking.
 
 config GFS2_FS_LOCKING_DLM
-	tristate "GFS2 DLM locking module"
-	depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n)
-	select IP_SCTP if DLM_SCTP
-	select CONFIGFS_FS
-	select DLM
+	bool "GFS2 DLM locking"
+	depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && HOTPLUG
 	help
 	  Multiple node locking module for GFS2
 
-	  Most users of GFS2 will require this module. It provides the locking
+	  Most users of GFS2 will require this. It provides the locking
 	  interface between GFS2 and the DLM, which is required to use GFS2
 	  in a cluster environment.
diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile
index c1b4ec6a9650..a851ea4bdf70 100644
--- a/fs/gfs2/Makefile
+++ b/fs/gfs2/Makefile
@@ -1,9 +1,9 @@
 obj-$(CONFIG_GFS2_FS) += gfs2.o
 gfs2-y := acl.o bmap.o dir.o eaops.o eattr.o glock.o \
-	glops.o inode.o log.o lops.o locking.o main.o meta_io.o \
+	glops.o inode.o log.o lops.o main.o meta_io.o \
 	mount.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
 	ops_fstype.o ops_inode.o ops_super.o quota.o \
 	recovery.o rgrp.o super.o sys.o trans.o util.o
 
-obj-$(CONFIG_GFS2_FS_LOCKING_DLM) += locking/dlm/
+gfs2-$(CONFIG_GFS2_FS_LOCKING_DLM) += lock_dlm.o
 
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index e335dceb6a4f..43764f4fa763 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -15,7 +15,6 @@
 #include <linux/posix_acl.h>
 #include <linux/posix_acl_xattr.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 11ffc56f1f81..3a5d3f883e10 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -13,7 +13,6 @@
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index b7c8e5c70791..aef4d0c06748 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -60,7 +60,6 @@
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
 #include <linux/vmalloc.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/eaops.c b/fs/gfs2/eaops.c
index f114ba2b3557..dee9b03e5b37 100644
--- a/fs/gfs2/eaops.c
+++ b/fs/gfs2/eaops.c
@@ -14,7 +14,6 @@
 #include <linux/capability.h>
 #include <linux/xattr.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <asm/uaccess.h>
 
 #include "gfs2.h"
diff --git a/fs/gfs2/eattr.c b/fs/gfs2/eattr.c
index 0d1c76d906ae..899763aed217 100644
--- a/fs/gfs2/eattr.c
+++ b/fs/gfs2/eattr.c
@@ -13,7 +13,6 @@
 #include <linux/buffer_head.h>
 #include <linux/xattr.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <asm/uaccess.h>
 
 #include "gfs2.h"
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 6b983aef785d..cd200a564c79 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -10,7 +10,6 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/completion.h>
 #include <linux/buffer_head.h>
 #include <linux/delay.h>
 #include <linux/sort.h>
@@ -18,7 +17,6 @@
 #include <linux/kallsyms.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/list.h>
-#include <linux/lm_interface.h>
 #include <linux/wait.h>
 #include <linux/module.h>
 #include <linux/rwsem.h>
@@ -155,13 +153,10 @@ static void glock_free(struct gfs2_glock *gl)
 	struct gfs2_sbd *sdp = gl->gl_sbd;
 	struct inode *aspace = gl->gl_aspace;
 
-	if (sdp->sd_lockstruct.ls_ops->lm_put_lock)
-		sdp->sd_lockstruct.ls_ops->lm_put_lock(gl->gl_lock);
-
 	if (aspace)
 		gfs2_aspace_put(aspace);
 
-	kmem_cache_free(gfs2_glock_cachep, gl);
+	sdp->sd_lockstruct.ls_ops->lm_put_lock(gfs2_glock_cachep, gl);
 }
 
 /**
@@ -211,7 +206,6 @@ int gfs2_glock_put(struct gfs2_glock *gl)
 			atomic_dec(&lru_count);
 		}
 		spin_unlock(&lru_lock);
-		GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_UNLOCKED);
 		GLOCK_BUG_ON(gl, !list_empty(&gl->gl_lru));
 		GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
 		glock_free(gl);
@@ -255,27 +249,6 @@ static struct gfs2_glock *search_bucket(unsigned int hash,
 	return NULL;
 }
 
-/**
- * gfs2_glock_find() - Find glock by lock number
- * @sdp: The GFS2 superblock
- * @name: The lock name
- *
- * Returns: NULL, or the struct gfs2_glock with the requested number
- */
-
-static struct gfs2_glock *gfs2_glock_find(const struct gfs2_sbd *sdp,
-					  const struct lm_lockname *name)
-{
-	unsigned int hash = gl_hash(sdp, name);
-	struct gfs2_glock *gl;
-
-	read_lock(gl_lock_addr(hash));
-	gl = search_bucket(hash, sdp, name);
-	read_unlock(gl_lock_addr(hash));
-
-	return gl;
-}
-
 /**
  * may_grant - check if its ok to grant a new lock
  * @gl: The glock
@@ -523,7 +496,7 @@ out_locked:
 }
 
 static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
-				 unsigned int cur_state, unsigned int req_state,
+				 unsigned int req_state,
 				 unsigned int flags)
 {
 	int ret = LM_OUT_ERROR;
@@ -532,7 +505,7 @@ static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
 		return req_state == LM_ST_UNLOCKED ? 0 : req_state;
 
 	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock, cur_state,
+		ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock,
 							 req_state, flags);
 	return ret;
 }
@@ -575,7 +548,7 @@ __acquires(&gl->gl_spin)
 	    gl->gl_state == LM_ST_DEFERRED) &&
 	    !(lck_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)))
 		lck_flags |= LM_FLAG_TRY_1CB;
-	ret = gfs2_lm_lock(sdp, gl->gl_lock, gl->gl_state, target, lck_flags);
+	ret = gfs2_lm_lock(sdp, gl, target, lck_flags);
 
 	if (!(ret & LM_OUT_ASYNC)) {
 		finish_xmote(gl, ret);
@@ -681,18 +654,6 @@ static void glock_work_func(struct work_struct *work)
 		gfs2_glock_put(gl);
 }
 
-static int gfs2_lm_get_lock(struct gfs2_sbd *sdp, struct lm_lockname *name,
-		     void **lockp)
-{
-	int error = -EIO;
-	if (!sdp->sd_lockstruct.ls_ops->lm_get_lock)
-		return 0;
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = sdp->sd_lockstruct.ls_ops->lm_get_lock(
-				sdp->sd_lockstruct.ls_lockspace, name, lockp);
-	return error;
-}
-
 /**
  * gfs2_glock_get() - Get a glock, or create one if one doesn't exist
  * @sdp: The GFS2 superblock
@@ -736,6 +697,9 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 	gl->gl_demote_state = LM_ST_EXCLUSIVE;
 	gl->gl_hash = hash;
 	gl->gl_ops = glops;
+	snprintf(gl->gl_strname, GDLM_STRNAME_BYTES, "%8x%16llx", name.ln_type, (unsigned long long)number);
+	memset(&gl->gl_lksb, 0, sizeof(struct dlm_lksb));
+	gl->gl_lksb.sb_lvbptr = gl->gl_lvb;
 	gl->gl_stamp = jiffies;
 	gl->gl_tchange = jiffies;
 	gl->gl_object = NULL;
@@ -753,10 +717,6 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 		}
 	}
 
-	error = gfs2_lm_get_lock(sdp, &name, &gl->gl_lock);
-	if (error)
-		goto fail_aspace;
-
 	write_lock(gl_lock_addr(hash));
 	tmp = search_bucket(hash, sdp, &name);
 	if (tmp) {
@@ -772,9 +732,6 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 
 	return 0;
 
-fail_aspace:
-	if (gl->gl_aspace)
-		gfs2_aspace_put(gl->gl_aspace);
 fail:
 	kmem_cache_free(gfs2_glock_cachep, gl);
 	return error;
@@ -966,7 +923,7 @@ do_cancel:
 	if (!(gh->gh_flags & LM_FLAG_PRIORITY)) {
 		spin_unlock(&gl->gl_spin);
 		if (sdp->sd_lockstruct.ls_ops->lm_cancel)
-			sdp->sd_lockstruct.ls_ops->lm_cancel(gl->gl_lock);
+			sdp->sd_lockstruct.ls_ops->lm_cancel(gl);
 		spin_lock(&gl->gl_spin);
 	}
 	return;
@@ -1240,70 +1197,13 @@ void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs)
 		gfs2_glock_dq_uninit(&ghs[x]);
 }
 
-static int gfs2_lm_hold_lvb(struct gfs2_sbd *sdp, void *lock, char **lvbp)
+void gfs2_glock_cb(struct gfs2_glock *gl, unsigned int state)
 {
-	int error = -EIO;
-	if (!sdp->sd_lockstruct.ls_ops->lm_hold_lvb)
-		return 0;
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = sdp->sd_lockstruct.ls_ops->lm_hold_lvb(lock, lvbp);
-	return error;
-}
-
-/**
- * gfs2_lvb_hold - attach a LVB from a glock
- * @gl: The glock in question
- *
- */
-
-int gfs2_lvb_hold(struct gfs2_glock *gl)
-{
-	int error;
-
-	if (!atomic_read(&gl->gl_lvb_count)) {
-		error = gfs2_lm_hold_lvb(gl->gl_sbd, gl->gl_lock, &gl->gl_lvb);
-		if (error) 
-			return error;
-		gfs2_glock_hold(gl);
-	}
-	atomic_inc(&gl->gl_lvb_count);
-
-	return 0;
-}
-
-/**
- * gfs2_lvb_unhold - detach a LVB from a glock
- * @gl: The glock in question
- *
- */
-
-void gfs2_lvb_unhold(struct gfs2_glock *gl)
-{
-	struct gfs2_sbd *sdp = gl->gl_sbd;
-
-	gfs2_glock_hold(gl);
-	gfs2_assert(gl->gl_sbd, atomic_read(&gl->gl_lvb_count) > 0);
-	if (atomic_dec_and_test(&gl->gl_lvb_count)) {
-		if (sdp->sd_lockstruct.ls_ops->lm_unhold_lvb)
-			sdp->sd_lockstruct.ls_ops->lm_unhold_lvb(gl->gl_lock, gl->gl_lvb);
-		gl->gl_lvb = NULL;
-		gfs2_glock_put(gl);
-	}
-	gfs2_glock_put(gl);
-}
-
-static void blocking_cb(struct gfs2_sbd *sdp, struct lm_lockname *name,
-			unsigned int state)
-{
-	struct gfs2_glock *gl;
 	unsigned long delay = 0;
 	unsigned long holdtime;
 	unsigned long now = jiffies;
 
-	gl = gfs2_glock_find(sdp, name);
-	if (!gl)
-		return;
-
+	gfs2_glock_hold(gl);
 	holdtime = gl->gl_tchange + gl->gl_ops->go_min_hold_time;
 	if (time_before(now, holdtime))
 		delay = holdtime - now;
@@ -1317,74 +1217,37 @@ static void blocking_cb(struct gfs2_sbd *sdp, struct lm_lockname *name,
 		gfs2_glock_put(gl);
 }
 
-static void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
-{
-	struct gfs2_jdesc *jd;
-
-	spin_lock(&sdp->sd_jindex_spin);
-	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
-		if (jd->jd_jid != jid)
-			continue;
-		jd->jd_dirty = 1;
-		break;
-	}
-	spin_unlock(&sdp->sd_jindex_spin);
-}
-
 /**
- * gfs2_glock_cb - Callback used by locking module
- * @sdp: Pointer to the superblock
- * @type: Type of callback
- * @data: Type dependent data pointer
+ * gfs2_glock_complete - Callback used by locking
+ * @gl: Pointer to the glock
+ * @ret: The return value from the dlm
  *
- * Called by the locking module when it wants to tell us something.
- * Either we need to drop a lock, one of our ASYNC requests completed, or
- * a journal from another client needs to be recovered.
  */
 
-void gfs2_glock_cb(void *cb_data, unsigned int type, void *data)
+void gfs2_glock_complete(struct gfs2_glock *gl, int ret)
 {
-	struct gfs2_sbd *sdp = cb_data;
-
-	switch (type) {
-	case LM_CB_NEED_E:
-		blocking_cb(sdp, data, LM_ST_UNLOCKED);
-		return;
-
-	case LM_CB_NEED_D:
-		blocking_cb(sdp, data, LM_ST_DEFERRED);
-		return;
-
-	case LM_CB_NEED_S:
-		blocking_cb(sdp, data, LM_ST_SHARED);
-		return;
-
-	case LM_CB_ASYNC: {
-		struct lm_async_cb *async = data;
-		struct gfs2_glock *gl;
-
-		down_read(&gfs2_umount_flush_sem);
-		gl = gfs2_glock_find(sdp, &async->lc_name);
-		if (gfs2_assert_warn(sdp, gl))
+	struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct;
+	down_read(&gfs2_umount_flush_sem);
+	gl->gl_reply = ret;
+	if (unlikely(test_bit(DFL_BLOCK_LOCKS, &ls->ls_flags))) {
+		struct gfs2_holder *gh;
+		spin_lock(&gl->gl_spin);
+		gh = find_first_waiter(gl);
+		if ((!(gh && (gh->gh_flags & LM_FLAG_NOEXP)) &&
+		     (gl->gl_target != LM_ST_UNLOCKED)) ||
+		    ((ret & ~LM_OUT_ST_MASK) != 0))
+			set_bit(GLF_FROZEN, &gl->gl_flags);
+		spin_unlock(&gl->gl_spin);
+		if (test_bit(GLF_FROZEN, &gl->gl_flags)) {
+			up_read(&gfs2_umount_flush_sem);
 			return;
-		gl->gl_reply = async->lc_ret;
-		set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
-		if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
-			gfs2_glock_put(gl);
-		up_read(&gfs2_umount_flush_sem);
-		return;
-	}
-
-	case LM_CB_NEED_RECOVERY:
-		gfs2_jdesc_make_dirty(sdp, *(unsigned int *)data);
-		if (sdp->sd_recoverd_process)
-			wake_up_process(sdp->sd_recoverd_process);
-		return;
-
-	default:
-		gfs2_assert_warn(sdp, 0);
-		return;
+		}
 	}
+	set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
+	gfs2_glock_hold(gl);
+	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
+		gfs2_glock_put(gl);
+	up_read(&gfs2_umount_flush_sem);
 }
 
 /**
@@ -1515,6 +1378,27 @@ out:
 	return has_entries;
 }
 
+
+/**
+ * thaw_glock - thaw out a glock which has an unprocessed reply waiting
+ * @gl: The glock to thaw
+ *
+ * N.B. When we freeze a glock, we leave a ref to the glock outstanding,
+ * so this has to result in the ref count being dropped by one.
+ */
+
+static void thaw_glock(struct gfs2_glock *gl)
+{
+	if (!test_and_clear_bit(GLF_FROZEN, &gl->gl_flags))
+		return;
+	down_read(&gfs2_umount_flush_sem);
+	set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
+	gfs2_glock_hold(gl);
+	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
+		gfs2_glock_put(gl);
+	up_read(&gfs2_umount_flush_sem);
+}
+
 /**
  * clear_glock - look at a glock and see if we can free it from glock cache
  * @gl: the glock to look at
@@ -1539,6 +1423,20 @@ static void clear_glock(struct gfs2_glock *gl)
 		gfs2_glock_put(gl);
 }
 
+/**
+ * gfs2_glock_thaw - Thaw any frozen glocks
+ * @sdp: The super block
+ *
+ */
+
+void gfs2_glock_thaw(struct gfs2_sbd *sdp)
+{
+	unsigned x;
+
+	for (x = 0; x < GFS2_GL_HASH_SIZE; x++)
+		examine_bucket(thaw_glock, sdp, x);
+}
+
 /**
  * gfs2_gl_hash_clear - Empty out the glock hash table
  * @sdp: the filesystem
@@ -1619,7 +1517,7 @@ static const char *hflags2str(char *buf, unsigned flags, unsigned long iflags)
 	if (flags & LM_FLAG_NOEXP)
 		*p++ = 'e';
 	if (flags & LM_FLAG_ANY)
-		*p++ = 'a';
+		*p++ = 'A';
 	if (flags & LM_FLAG_PRIORITY)
 		*p++ = 'p';
 	if (flags & GL_ASYNC)
@@ -1683,6 +1581,10 @@ static const char *gflags2str(char *buf, const unsigned long *gflags)
 		*p++ = 'i';
 	if (test_bit(GLF_REPLY_PENDING, gflags))
 		*p++ = 'r';
+	if (test_bit(GLF_INITIAL, gflags))
+		*p++ = 'i';
+	if (test_bit(GLF_FROZEN, gflags))
+		*p++ = 'F';
 	*p = 0;
 	return buf;
 }
@@ -1717,14 +1619,13 @@ static int __dump_glock(struct seq_file *seq, const struct gfs2_glock *gl)
 	dtime *= 1000000/HZ; /* demote time in uSec */
 	if (!test_bit(GLF_DEMOTE, &gl->gl_flags))
 		dtime = 0;
-	gfs2_print_dbg(seq, "G:  s:%s n:%u/%llu f:%s t:%s d:%s/%llu l:%d a:%d r:%d\n",
+	gfs2_print_dbg(seq, "G:  s:%s n:%u/%llu f:%s t:%s d:%s/%llu a:%d r:%d\n",
 		  state2str(gl->gl_state),
 		  gl->gl_name.ln_type,
 		  (unsigned long long)gl->gl_name.ln_number,
 		  gflags2str(gflags_buf, &gl->gl_flags),
 		  state2str(gl->gl_target),
 		  state2str(gl->gl_demote_state), dtime,
-		  atomic_read(&gl->gl_lvb_count),
 		  atomic_read(&gl->gl_ail_count),
 		  atomic_read(&gl->gl_ref));
 
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 543ec7ecfbda..a602a28f6f08 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -11,15 +11,130 @@
 #define __GLOCK_DOT_H__
 
 #include <linux/sched.h>
+#include <linux/parser.h>
 #include "incore.h"
 
-/* Flags for lock requests; used in gfs2_holder gh_flag field.
-   From lm_interface.h:
+/* Options for hostdata parser */
+
+enum {
+	Opt_jid,
+	Opt_id,
+	Opt_first,
+	Opt_nodir,
+	Opt_err,
+};
+
+/*
+ * lm_lockname types
+ */
+
+#define LM_TYPE_RESERVED	0x00
+#define LM_TYPE_NONDISK		0x01
+#define LM_TYPE_INODE		0x02
+#define LM_TYPE_RGRP		0x03
+#define LM_TYPE_META		0x04
+#define LM_TYPE_IOPEN		0x05
+#define LM_TYPE_FLOCK		0x06
+#define LM_TYPE_PLOCK		0x07
+#define LM_TYPE_QUOTA		0x08
+#define LM_TYPE_JOURNAL		0x09
+
+/*
+ * lm_lock() states
+ *
+ * SHARED is compatible with SHARED, not with DEFERRED or EX.
+ * DEFERRED is compatible with DEFERRED, not with SHARED or EX.
+ */
+
+#define LM_ST_UNLOCKED		0
+#define LM_ST_EXCLUSIVE		1
+#define LM_ST_DEFERRED		2
+#define LM_ST_SHARED		3
+
+/*
+ * lm_lock() flags
+ *
+ * LM_FLAG_TRY
+ * Don't wait to acquire the lock if it can't be granted immediately.
+ *
+ * LM_FLAG_TRY_1CB
+ * Send one blocking callback if TRY is set and the lock is not granted.
+ *
+ * LM_FLAG_NOEXP
+ * GFS sets this flag on lock requests it makes while doing journal recovery.
+ * These special requests should not be blocked due to the recovery like
+ * ordinary locks would be.
+ *
+ * LM_FLAG_ANY
+ * A SHARED request may also be granted in DEFERRED, or a DEFERRED request may
+ * also be granted in SHARED.  The preferred state is whichever is compatible
+ * with other granted locks, or the specified state if no other locks exist.
+ *
+ * LM_FLAG_PRIORITY
+ * Override fairness considerations.  Suppose a lock is held in a shared state
+ * and there is a pending request for the deferred state.  A shared lock
+ * request with the priority flag would be allowed to bypass the deferred
+ * request and directly join the other shared lock.  A shared lock request
+ * without the priority flag might be forced to wait until the deferred
+ * requested had acquired and released the lock.
+ */
+
 #define LM_FLAG_TRY		0x00000001
 #define LM_FLAG_TRY_1CB		0x00000002
 #define LM_FLAG_NOEXP		0x00000004
 #define LM_FLAG_ANY		0x00000008
-#define LM_FLAG_PRIORITY	0x00000010 */
+#define LM_FLAG_PRIORITY	0x00000010
+#define GL_ASYNC		0x00000040
+#define GL_EXACT		0x00000080
+#define GL_SKIP			0x00000100
+#define GL_ATIME		0x00000200
+#define GL_NOCACHE		0x00000400
+  
+/*
+ * lm_lock() and lm_async_cb return flags
+ *
+ * LM_OUT_ST_MASK
+ * Masks the lower two bits of lock state in the returned value.
+ *
+ * LM_OUT_CANCELED
+ * The lock request was canceled.
+ *
+ * LM_OUT_ASYNC
+ * The result of the request will be returned in an LM_CB_ASYNC callback.
+ *
+ */
+
+#define LM_OUT_ST_MASK		0x00000003
+#define LM_OUT_CANCELED		0x00000008
+#define LM_OUT_ASYNC		0x00000080
+#define LM_OUT_ERROR		0x00000100
+
+/*
+ * lm_recovery_done() messages
+ */
+
+#define LM_RD_GAVEUP		308
+#define LM_RD_SUCCESS		309
+
+#define GLR_TRYFAILED		13
+
+struct lm_lockops {
+	const char *lm_proto_name;
+	int (*lm_mount) (struct gfs2_sbd *sdp, const char *fsname);
+ 	void (*lm_unmount) (struct gfs2_sbd *sdp);
+	void (*lm_withdraw) (struct gfs2_sbd *sdp);
+	void (*lm_put_lock) (struct kmem_cache *cachep, void *gl);
+	unsigned int (*lm_lock) (struct gfs2_glock *gl,
+				 unsigned int req_state, unsigned int flags);
+	void (*lm_cancel) (struct gfs2_glock *gl);
+	const match_table_t *lm_tokens;
+};
+
+#define LM_FLAG_TRY		0x00000001
+#define LM_FLAG_TRY_1CB		0x00000002
+#define LM_FLAG_NOEXP		0x00000004
+#define LM_FLAG_ANY		0x00000008
+#define LM_FLAG_PRIORITY	0x00000010
 
 #define GL_ASYNC		0x00000040
 #define GL_EXACT		0x00000080
@@ -128,10 +243,12 @@ static inline int gfs2_glock_nq_init(struct gfs2_glock *gl,
 int gfs2_lvb_hold(struct gfs2_glock *gl);
 void gfs2_lvb_unhold(struct gfs2_glock *gl);
 
-void gfs2_glock_cb(void *cb_data, unsigned int type, void *data);
+void gfs2_glock_cb(struct gfs2_glock *gl, unsigned int state);
+void gfs2_glock_complete(struct gfs2_glock *gl, int ret);
 void gfs2_reclaim_glock(struct gfs2_sbd *sdp);
 void gfs2_gl_hash_clear(struct gfs2_sbd *sdp);
 void gfs2_glock_finish_truncate(struct gfs2_inode *ip);
+void gfs2_glock_thaw(struct gfs2_sbd *sdp);
 
 int __init gfs2_glock_init(void);
 void gfs2_glock_exit(void);
@@ -141,4 +258,6 @@ void gfs2_delete_debugfs_file(struct gfs2_sbd *sdp);
 int gfs2_register_debugfs(void);
 void gfs2_unregister_debugfs(void);
 
+extern const struct lm_lockops gfs2_dlm_ops;
+
 #endif /* __GLOCK_DOT_H__ */
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 8522d3aa64fc..f07ede8cb9ba 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -12,7 +12,6 @@
 #include <linux/completion.h>
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <linux/bio.h>
 
 #include "gfs2.h"
@@ -390,18 +389,6 @@ static int trans_go_demote_ok(const struct gfs2_glock *gl)
 	return 0;
 }
 
-/**
- * quota_go_demote_ok - Check to see if it's ok to unlock a quota glock
- * @gl: the glock
- *
- * Returns: 1 if it's ok
- */
-
-static int quota_go_demote_ok(const struct gfs2_glock *gl)
-{
-	return !atomic_read(&gl->gl_lvb_count);
-}
-
 const struct gfs2_glock_operations gfs2_meta_glops = {
 	.go_xmote_th = meta_go_sync,
 	.go_type = LM_TYPE_META,
@@ -448,7 +435,6 @@ const struct gfs2_glock_operations gfs2_nondisk_glops = {
 };
 
 const struct gfs2_glock_operations gfs2_quota_glops = {
-	.go_demote_ok = quota_go_demote_ok,
 	.go_type = LM_TYPE_QUOTA,
 };
 
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index a0117d6eb145..0af7c24de6a1 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -12,6 +12,8 @@
 
 #include <linux/fs.h>
 #include <linux/workqueue.h>
+#include <linux/dlm.h>
+#include <linux/buffer_head.h>
 
 #define DIO_WAIT	0x00000010
 #define DIO_METADATA	0x00000020
@@ -26,6 +28,7 @@ struct gfs2_trans;
 struct gfs2_ail;
 struct gfs2_jdesc;
 struct gfs2_sbd;
+struct lm_lockops;
 
 typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret);
 
@@ -121,6 +124,28 @@ struct gfs2_bufdata {
 	struct list_head bd_ail_gl_list;
 };
 
+/*
+ * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a
+ * prefix of lock_dlm_ gets awkward.
+ */
+
+#define GDLM_STRNAME_BYTES	25
+#define GDLM_LVB_SIZE		32
+
+enum {
+	DFL_BLOCK_LOCKS		= 0,
+};
+
+struct lm_lockname {
+	u64 ln_number;
+	unsigned int ln_type;
+};
+
+#define lm_name_equal(name1, name2) \
+        (((name1)->ln_number == (name2)->ln_number) && \
+         ((name1)->ln_type == (name2)->ln_type))
+
+
 struct gfs2_glock_operations {
 	void (*go_xmote_th) (struct gfs2_glock *gl);
 	int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh);
@@ -162,6 +187,8 @@ enum {
 	GLF_LFLUSH			= 7,
 	GLF_INVALIDATE_IN_PROGRESS	= 8,
 	GLF_REPLY_PENDING		= 9,
+	GLF_INITIAL			= 10,
+	GLF_FROZEN			= 11,
 };
 
 struct gfs2_glock {
@@ -181,10 +208,9 @@ struct gfs2_glock {
 	struct list_head gl_holders;
 
 	const struct gfs2_glock_operations *gl_ops;
-	void *gl_lock;
-	char *gl_lvb;
-	atomic_t gl_lvb_count;
-
+	char gl_strname[GDLM_STRNAME_BYTES];
+	struct dlm_lksb gl_lksb;
+	char gl_lvb[32];
 	unsigned long gl_stamp;
 	unsigned long gl_tchange;
 	void *gl_object;
@@ -447,6 +473,30 @@ struct gfs2_sb_host {
 	char sb_locktable[GFS2_LOCKNAME_LEN];
 };
 
+/*
+ * lm_mount() return values
+ *
+ * ls_jid - the journal ID this node should use
+ * ls_first - this node is the first to mount the file system
+ * ls_lockspace - lock module's context for this file system
+ * ls_ops - lock module's functions
+ */
+
+struct lm_lockstruct {
+	u32 ls_id;
+	unsigned int ls_jid;
+	unsigned int ls_first;
+	unsigned int ls_first_done;
+	unsigned int ls_nodir;
+	const struct lm_lockops *ls_ops;
+	unsigned long ls_flags;
+	dlm_lockspace_t *ls_dlm;
+
+	int ls_recover_jid;
+	int ls_recover_jid_done;
+	int ls_recover_jid_status;
+};
+
 struct gfs2_sbd {
 	struct super_block *sd_vfs;
 	struct kobject sd_kobj;
@@ -520,7 +570,6 @@ struct gfs2_sbd {
 	spinlock_t sd_jindex_spin;
 	struct mutex sd_jindex_mutex;
 	unsigned int sd_journals;
-	unsigned long sd_jindex_refresh_time;
 
 	struct gfs2_jdesc *sd_jdesc;
 	struct gfs2_holder sd_journal_gh;
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 3b87c188da41..7b277d449155 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -16,7 +16,6 @@
 #include <linux/sort.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 #include <linux/security.h>
 #include <linux/time.h>
 
@@ -137,16 +136,16 @@ void gfs2_set_iop(struct inode *inode)
 
 	if (S_ISREG(mode)) {
 		inode->i_op = &gfs2_file_iops;
-		if (sdp->sd_args.ar_localflocks)
-			inode->i_fop = &gfs2_file_fops_nolock;
+		if (gfs2_localflocks(sdp))
+			inode->i_fop = gfs2_file_fops_nolock;
 		else
-			inode->i_fop = &gfs2_file_fops;
+			inode->i_fop = gfs2_file_fops;
 	} else if (S_ISDIR(mode)) {
 		inode->i_op = &gfs2_dir_iops;
-		if (sdp->sd_args.ar_localflocks)
-			inode->i_fop = &gfs2_dir_fops_nolock;
+		if (gfs2_localflocks(sdp))
+			inode->i_fop = gfs2_dir_fops_nolock;
 		else
-			inode->i_fop = &gfs2_dir_fops;
+			inode->i_fop = gfs2_dir_fops;
 	} else if (S_ISLNK(mode)) {
 		inode->i_op = &gfs2_symlink_iops;
 	} else {
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index d5329364cdff..dca4fee3078b 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -101,12 +101,26 @@ void gfs2_dinode_print(const struct gfs2_inode *ip);
 extern const struct inode_operations gfs2_file_iops;
 extern const struct inode_operations gfs2_dir_iops;
 extern const struct inode_operations gfs2_symlink_iops;
-extern const struct file_operations gfs2_file_fops;
-extern const struct file_operations gfs2_dir_fops;
-extern const struct file_operations gfs2_file_fops_nolock;
-extern const struct file_operations gfs2_dir_fops_nolock;
+extern const struct file_operations *gfs2_file_fops_nolock;
+extern const struct file_operations *gfs2_dir_fops_nolock;
 
 extern void gfs2_set_inode_flags(struct inode *inode);
+ 
+#ifdef CONFIG_GFS2_FS_LOCKING_DLM
+extern const struct file_operations *gfs2_file_fops;
+extern const struct file_operations *gfs2_dir_fops;
+static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
+{
+	return sdp->sd_args.ar_localflocks;
+}
+#else /* Single node only */
+#define gfs2_file_fops NULL
+#define gfs2_dir_fops NULL
+static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
+{
+	return 1;
+}
+#endif /* CONFIG_GFS2_FS_LOCKING_DLM */
 
 #endif /* __INODE_DOT_H__ */
 
diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c
new file mode 100644
index 000000000000..a0bb7d2251a0
--- /dev/null
+++ b/fs/gfs2/lock_dlm.c
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2009 Red Hat, Inc.  All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License version 2.
+ */
+
+#include <linux/fs.h>
+#include <linux/dlm.h>
+#include <linux/types.h>
+#include <linux/gfs2_ondisk.h>
+
+#include "incore.h"
+#include "glock.h"
+#include "util.h"
+
+
+static void gdlm_ast(void *arg)
+{
+	struct gfs2_glock *gl = arg;
+	unsigned ret = gl->gl_state;
+
+	BUG_ON(gl->gl_lksb.sb_flags & DLM_SBF_DEMOTED);
+
+	if (gl->gl_lksb.sb_flags & DLM_SBF_VALNOTVALID)
+		memset(gl->gl_lvb, 0, GDLM_LVB_SIZE);
+
+	switch (gl->gl_lksb.sb_status) {
+	case -DLM_EUNLOCK: /* Unlocked, so glock can be freed */
+		kmem_cache_free(gfs2_glock_cachep, gl);
+		return;
+	case -DLM_ECANCEL: /* Cancel while getting lock */
+		ret |= LM_OUT_CANCELED;
+		goto out;
+	case -EAGAIN: /* Try lock fails */
+		goto out;
+	case -EINVAL: /* Invalid */
+	case -ENOMEM: /* Out of memory */
+		ret |= LM_OUT_ERROR;
+		goto out;
+	case 0: /* Success */
+		break;
+	default: /* Something unexpected */
+		BUG();
+	}
+
+	ret = gl->gl_target;
+	if (gl->gl_lksb.sb_flags & DLM_SBF_ALTMODE) {
+		if (gl->gl_target == LM_ST_SHARED)
+			ret = LM_ST_DEFERRED;
+		else if (gl->gl_target == LM_ST_DEFERRED)
+			ret = LM_ST_SHARED;
+		else
+			BUG();
+	}
+
+	set_bit(GLF_INITIAL, &gl->gl_flags);
+	gfs2_glock_complete(gl, ret);
+	return;
+out:
+	if (!test_bit(GLF_INITIAL, &gl->gl_flags))
+		gl->gl_lksb.sb_lkid = 0;
+	gfs2_glock_complete(gl, ret);
+}
+
+static void gdlm_bast(void *arg, int mode)
+{
+	struct gfs2_glock *gl = arg;
+
+	switch (mode) {
+	case DLM_LOCK_EX:
+		gfs2_glock_cb(gl, LM_ST_UNLOCKED);
+		break;
+	case DLM_LOCK_CW:
+		gfs2_glock_cb(gl, LM_ST_DEFERRED);
+		break;
+	case DLM_LOCK_PR:
+		gfs2_glock_cb(gl, LM_ST_SHARED);
+		break;
+	default:
+		printk(KERN_ERR "unknown bast mode %d", mode);
+		BUG();
+	}
+}
+
+/* convert gfs lock-state to dlm lock-mode */
+
+static int make_mode(const unsigned int lmstate)
+{
+	switch (lmstate) {
+	case LM_ST_UNLOCKED:
+		return DLM_LOCK_NL;
+	case LM_ST_EXCLUSIVE:
+		return DLM_LOCK_EX;
+	case LM_ST_DEFERRED:
+		return DLM_LOCK_CW;
+	case LM_ST_SHARED:
+		return DLM_LOCK_PR;
+	}
+	printk(KERN_ERR "unknown LM state %d", lmstate);
+	BUG();
+	return -1;
+}
+
+static u32 make_flags(const u32 lkid, const unsigned int gfs_flags,
+		      const int req)
+{
+	u32 lkf = 0;
+
+	if (gfs_flags & LM_FLAG_TRY)
+		lkf |= DLM_LKF_NOQUEUE;
+
+	if (gfs_flags & LM_FLAG_TRY_1CB) {
+		lkf |= DLM_LKF_NOQUEUE;
+		lkf |= DLM_LKF_NOQUEUEBAST;
+	}
+
+	if (gfs_flags & LM_FLAG_PRIORITY) {
+		lkf |= DLM_LKF_NOORDER;
+		lkf |= DLM_LKF_HEADQUE;
+	}
+
+	if (gfs_flags & LM_FLAG_ANY) {
+		if (req == DLM_LOCK_PR)
+			lkf |= DLM_LKF_ALTCW;
+		else if (req == DLM_LOCK_CW)
+			lkf |= DLM_LKF_ALTPR;
+		else
+			BUG();
+	}
+
+	if (lkid != 0) 
+		lkf |= DLM_LKF_CONVERT;
+
+	lkf |= DLM_LKF_VALBLK;
+
+	return lkf;
+}
+
+static unsigned int gdlm_lock(struct gfs2_glock *gl,
+			      unsigned int req_state, unsigned int flags)
+{
+	struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct;
+	int error;
+	int req;
+	u32 lkf;
+
+	req = make_mode(req_state);
+	lkf = make_flags(gl->gl_lksb.sb_lkid, flags, req);
+
+	/*
+	 * Submit the actual lock request.
+	 */
+
+	error = dlm_lock(ls->ls_dlm, req, &gl->gl_lksb, lkf, gl->gl_strname,
+			 GDLM_STRNAME_BYTES - 1, 0, gdlm_ast, gl, gdlm_bast);
+	if (error == -EAGAIN)
+		return 0;
+	if (error)
+		return LM_OUT_ERROR;
+	return LM_OUT_ASYNC;
+}
+
+static void gdlm_put_lock(struct kmem_cache *cachep, void *ptr)
+{
+	struct gfs2_glock *gl = ptr;
+	struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct;
+	int error;
+
+	if (gl->gl_lksb.sb_lkid == 0) {
+		kmem_cache_free(cachep, gl);
+		return;
+	}
+
+	error = dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_VALBLK,
+			   NULL, gl);
+	if (error) {
+		printk(KERN_ERR "gdlm_unlock %x,%llx err=%d\n",
+		       gl->gl_name.ln_type,
+		       (unsigned long long)gl->gl_name.ln_number, error);
+		return;
+	}
+}
+
+static void gdlm_cancel(struct gfs2_glock *gl)
+{
+	struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct;
+	dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_CANCEL, NULL, gl);
+}
+
+static int gdlm_mount(struct gfs2_sbd *sdp, const char *fsname)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	int error;
+
+	if (fsname == NULL) {
+		fs_info(sdp, "no fsname found\n");
+		return -EINVAL;
+	}
+
+	error = dlm_new_lockspace(fsname, strlen(fsname), &ls->ls_dlm,
+				  DLM_LSFL_FS | DLM_LSFL_NEWEXCL |
+				  (ls->ls_nodir ? DLM_LSFL_NODIR : 0),
+				  GDLM_LVB_SIZE);
+	if (error)
+		printk(KERN_ERR "dlm_new_lockspace error %d", error);
+
+	return error;
+}
+
+static void gdlm_unmount(struct gfs2_sbd *sdp)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+
+	if (ls->ls_dlm) {
+		dlm_release_lockspace(ls->ls_dlm, 2);
+		ls->ls_dlm = NULL;
+	}
+}
+
+static const match_table_t dlm_tokens = {
+	{ Opt_jid, "jid=%d"},
+	{ Opt_id, "id=%d"},
+	{ Opt_first, "first=%d"},
+	{ Opt_nodir, "nodir=%d"},
+	{ Opt_err, NULL },
+};
+
+const struct lm_lockops gfs2_dlm_ops = {
+	.lm_proto_name = "lock_dlm",
+	.lm_mount = gdlm_mount,
+	.lm_unmount = gdlm_unmount,
+	.lm_put_lock = gdlm_put_lock,
+	.lm_lock = gdlm_lock,
+	.lm_cancel = gdlm_cancel,
+	.lm_tokens = &dlm_tokens,
+};
+
diff --git a/fs/gfs2/locking.c b/fs/gfs2/locking.c
deleted file mode 100644
index d3657bc7938a..000000000000
--- a/fs/gfs2/locking.c
+++ /dev/null
@@ -1,314 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/wait.h>
-#include <linux/sched.h>
-#include <linux/kmod.h>
-#include <linux/fs.h>
-#include <linux/delay.h>
-#include <linux/lm_interface.h>
-
-struct lmh_wrapper {
-	struct list_head lw_list;
-	const struct lm_lockops *lw_ops;
-};
-
-struct nolock_lockspace {
-	unsigned int nl_lvb_size;
-};
-
-/**
- * nolock_get_lock - get a lm_lock_t given a descripton of the lock
- * @lockspace: the lockspace the lock lives in
- * @name: the name of the lock
- * @lockp: return the lm_lock_t here
- *
- * Returns: 0 on success, -EXXX on failure
- */
-
-static int nolock_get_lock(void *lockspace, struct lm_lockname *name,
-                           void **lockp)
-{
-        *lockp = lockspace;
-        return 0;
-}
-
-/**
- * nolock_put_lock - get rid of a lock structure
- * @lock: the lock to throw away
- *
- */
-
-static void nolock_put_lock(void *lock)
-{
-}
-
-/**
- * nolock_hold_lvb - hold on to a lock value block
- * @lock: the lock the LVB is associated with
- * @lvbp: return the lm_lvb_t here
- *
- * Returns: 0 on success, -EXXX on failure
- */
-
-static int nolock_hold_lvb(void *lock, char **lvbp)
-{
-	struct nolock_lockspace *nl = lock;
-	int error = 0;
-
-	*lvbp = kzalloc(nl->nl_lvb_size, GFP_KERNEL);
-	if (!*lvbp)
-		error = -ENOMEM;
-
-	return error;
-}
-
-/**
- * nolock_unhold_lvb - release a LVB
- * @lock: the lock the LVB is associated with
- * @lvb: the lock value block
- *
- */
-
-static void nolock_unhold_lvb(void *lock, char *lvb)
-{
-	kfree(lvb);
-}
-
-static int nolock_mount(char *table_name, char *host_data,
-			lm_callback_t cb, void *cb_data,
-			unsigned int min_lvb_size, int flags,
-			struct lm_lockstruct *lockstruct,
-			struct kobject *fskobj);
-static void nolock_unmount(void *lockspace);
-
-/* List of registered low-level locking protocols.  A file system selects one
-   of them by name at mount time, e.g. lock_nolock, lock_dlm. */
-
-static const struct lm_lockops nolock_ops = {
-	.lm_proto_name = "lock_nolock",
-	.lm_mount = nolock_mount,
-	.lm_unmount = nolock_unmount,
-	.lm_get_lock = nolock_get_lock,
-	.lm_put_lock = nolock_put_lock,
-	.lm_hold_lvb = nolock_hold_lvb,
-	.lm_unhold_lvb = nolock_unhold_lvb,
-};
-
-static struct lmh_wrapper nolock_proto  = {
-	.lw_list = LIST_HEAD_INIT(nolock_proto.lw_list),
-	.lw_ops = &nolock_ops,
-};
-
-static LIST_HEAD(lmh_list);
-static DEFINE_MUTEX(lmh_lock);
-
-static int nolock_mount(char *table_name, char *host_data,
-			lm_callback_t cb, void *cb_data,
-			unsigned int min_lvb_size, int flags,
-			struct lm_lockstruct *lockstruct,
-			struct kobject *fskobj)
-{
-	char *c;
-	unsigned int jid;
-	struct nolock_lockspace *nl;
-
-	c = strstr(host_data, "jid=");
-	if (!c)
-		jid = 0;
-	else {
-		c += 4;
-		sscanf(c, "%u", &jid);
-	}
-
-	nl = kzalloc(sizeof(struct nolock_lockspace), GFP_KERNEL);
-	if (!nl)
-		return -ENOMEM;
-
-	nl->nl_lvb_size = min_lvb_size;
-
-	lockstruct->ls_jid = jid;
-	lockstruct->ls_first = 1;
-	lockstruct->ls_lvb_size = min_lvb_size;
-	lockstruct->ls_lockspace = nl;
-	lockstruct->ls_ops = &nolock_ops;
-	lockstruct->ls_flags = LM_LSFLAG_LOCAL;
-
-	return 0;
-}
-
-static void nolock_unmount(void *lockspace)
-{
-        struct nolock_lockspace *nl = lockspace;
-        kfree(nl);
-}
-
-/**
- * gfs2_register_lockproto - Register a low-level locking protocol
- * @proto: the protocol definition
- *
- * Returns: 0 on success, -EXXX on failure
- */
-
-int gfs2_register_lockproto(const struct lm_lockops *proto)
-{
-	struct lmh_wrapper *lw;
-
-	mutex_lock(&lmh_lock);
-
-	list_for_each_entry(lw, &lmh_list, lw_list) {
-		if (!strcmp(lw->lw_ops->lm_proto_name, proto->lm_proto_name)) {
-			mutex_unlock(&lmh_lock);
-			printk(KERN_INFO "GFS2: protocol %s already exists\n",
-			       proto->lm_proto_name);
-			return -EEXIST;
-		}
-	}
-
-	lw = kzalloc(sizeof(struct lmh_wrapper), GFP_KERNEL);
-	if (!lw) {
-		mutex_unlock(&lmh_lock);
-		return -ENOMEM;
-	}
-
-	lw->lw_ops = proto;
-	list_add(&lw->lw_list, &lmh_list);
-
-	mutex_unlock(&lmh_lock);
-
-	return 0;
-}
-
-/**
- * gfs2_unregister_lockproto - Unregister a low-level locking protocol
- * @proto: the protocol definition
- *
- */
-
-void gfs2_unregister_lockproto(const struct lm_lockops *proto)
-{
-	struct lmh_wrapper *lw;
-
-	mutex_lock(&lmh_lock);
-
-	list_for_each_entry(lw, &lmh_list, lw_list) {
-		if (!strcmp(lw->lw_ops->lm_proto_name, proto->lm_proto_name)) {
-			list_del(&lw->lw_list);
-			mutex_unlock(&lmh_lock);
-			kfree(lw);
-			return;
-		}
-	}
-
-	mutex_unlock(&lmh_lock);
-
-	printk(KERN_WARNING "GFS2: can't unregister lock protocol %s\n",
-	       proto->lm_proto_name);
-}
-
-/**
- * gfs2_mount_lockproto - Mount a lock protocol
- * @proto_name - the name of the protocol
- * @table_name - the name of the lock space
- * @host_data - data specific to this host
- * @cb - the callback to the code using the lock module
- * @sdp - The GFS2 superblock
- * @min_lvb_size - the mininum LVB size that the caller can deal with
- * @flags - LM_MFLAG_*
- * @lockstruct - a structure returned describing the mount
- *
- * Returns: 0 on success, -EXXX on failure
- */
-
-int gfs2_mount_lockproto(char *proto_name, char *table_name, char *host_data,
-			 lm_callback_t cb, void *cb_data,
-			 unsigned int min_lvb_size, int flags,
-			 struct lm_lockstruct *lockstruct,
-			 struct kobject *fskobj)
-{
-	struct lmh_wrapper *lw = NULL;
-	int try = 0;
-	int error, found;
-
-
-retry:
-	mutex_lock(&lmh_lock);
-
-	if (list_empty(&nolock_proto.lw_list))
-		list_add(&nolock_proto.lw_list, &lmh_list);
-
-	found = 0;
-	list_for_each_entry(lw, &lmh_list, lw_list) {
-		if (!strcmp(lw->lw_ops->lm_proto_name, proto_name)) {
-			found = 1;
-			break;
-		}
-	}
-
-	if (!found) {
-		if (!try && capable(CAP_SYS_MODULE)) {
-			try = 1;
-			mutex_unlock(&lmh_lock);
-			request_module(proto_name);
-			goto retry;
-		}
-		printk(KERN_INFO "GFS2: can't find protocol %s\n", proto_name);
-		error = -ENOENT;
-		goto out;
-	}
-
-	if (lw->lw_ops->lm_owner &&
-	    !try_module_get(lw->lw_ops->lm_owner)) {
-		try = 0;
-		mutex_unlock(&lmh_lock);
-		msleep(1000);
-		goto retry;
-	}
-
-	error = lw->lw_ops->lm_mount(table_name, host_data, cb, cb_data,
-				     min_lvb_size, flags, lockstruct, fskobj);
-	if (error)
-		module_put(lw->lw_ops->lm_owner);
-out:
-	mutex_unlock(&lmh_lock);
-	return error;
-}
-
-void gfs2_unmount_lockproto(struct lm_lockstruct *lockstruct)
-{
-	mutex_lock(&lmh_lock);
-	if (lockstruct->ls_ops->lm_unmount)
-		lockstruct->ls_ops->lm_unmount(lockstruct->ls_lockspace);
-	if (lockstruct->ls_ops->lm_owner)
-		module_put(lockstruct->ls_ops->lm_owner);
-	mutex_unlock(&lmh_lock);
-}
-
-/**
- * gfs2_withdraw_lockproto - abnormally unmount a lock module
- * @lockstruct: the lockstruct passed into mount
- *
- */
-
-void gfs2_withdraw_lockproto(struct lm_lockstruct *lockstruct)
-{
-	mutex_lock(&lmh_lock);
-	lockstruct->ls_ops->lm_withdraw(lockstruct->ls_lockspace);
-	if (lockstruct->ls_ops->lm_owner)
-		module_put(lockstruct->ls_ops->lm_owner);
-	mutex_unlock(&lmh_lock);
-}
-
-EXPORT_SYMBOL_GPL(gfs2_register_lockproto);
-EXPORT_SYMBOL_GPL(gfs2_unregister_lockproto);
-
diff --git a/fs/gfs2/locking/dlm/Makefile b/fs/gfs2/locking/dlm/Makefile
deleted file mode 100644
index 2609bb6cd013..000000000000
--- a/fs/gfs2/locking/dlm/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_GFS2_FS_LOCKING_DLM) += lock_dlm.o
-lock_dlm-y := lock.o main.o mount.o sysfs.o thread.o
-
diff --git a/fs/gfs2/locking/dlm/lock.c b/fs/gfs2/locking/dlm/lock.c
deleted file mode 100644
index 2482c9047505..000000000000
--- a/fs/gfs2/locking/dlm/lock.c
+++ /dev/null
@@ -1,708 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include "lock_dlm.h"
-
-static char junk_lvb[GDLM_LVB_SIZE];
-
-
-/* convert dlm lock-mode to gfs lock-state */
-
-static s16 gdlm_make_lmstate(s16 dlmmode)
-{
-	switch (dlmmode) {
-	case DLM_LOCK_IV:
-	case DLM_LOCK_NL:
-		return LM_ST_UNLOCKED;
-	case DLM_LOCK_EX:
-		return LM_ST_EXCLUSIVE;
-	case DLM_LOCK_CW:
-		return LM_ST_DEFERRED;
-	case DLM_LOCK_PR:
-		return LM_ST_SHARED;
-	}
-	gdlm_assert(0, "unknown DLM mode %d", dlmmode);
-	return -1;
-}
-
-/* A lock placed on this queue is re-submitted to DLM as soon as the lock_dlm
-   thread gets to it. */
-
-static void queue_submit(struct gdlm_lock *lp)
-{
-	struct gdlm_ls *ls = lp->ls;
-
-	spin_lock(&ls->async_lock);
-	list_add_tail(&lp->delay_list, &ls->submit);
-	spin_unlock(&ls->async_lock);
-	wake_up(&ls->thread_wait);
-}
-
-static void wake_up_ast(struct gdlm_lock *lp)
-{
-	clear_bit(LFL_AST_WAIT, &lp->flags);
-	smp_mb__after_clear_bit();
-	wake_up_bit(&lp->flags, LFL_AST_WAIT);
-}
-
-static void gdlm_delete_lp(struct gdlm_lock *lp)
-{
-	struct gdlm_ls *ls = lp->ls;
-
-	spin_lock(&ls->async_lock);
-	if (!list_empty(&lp->delay_list))
-		list_del_init(&lp->delay_list);
-	ls->all_locks_count--;
-	spin_unlock(&ls->async_lock);
-
-	kfree(lp);
-}
-
-static void gdlm_queue_delayed(struct gdlm_lock *lp)
-{
-	struct gdlm_ls *ls = lp->ls;
-
-	spin_lock(&ls->async_lock);
-	list_add_tail(&lp->delay_list, &ls->delayed);
-	spin_unlock(&ls->async_lock);
-}
-
-static void process_complete(struct gdlm_lock *lp)
-{
-	struct gdlm_ls *ls = lp->ls;
-	struct lm_async_cb acb;
-
-	memset(&acb, 0, sizeof(acb));
-
-	if (lp->lksb.sb_status == -DLM_ECANCEL) {
-		log_info("complete dlm cancel %x,%llx flags %lx",
-		 	 lp->lockname.ln_type,
-			 (unsigned long long)lp->lockname.ln_number,
-			 lp->flags);
-
-		lp->req = lp->cur;
-		acb.lc_ret |= LM_OUT_CANCELED;
-		if (lp->cur == DLM_LOCK_IV)
-			lp->lksb.sb_lkid = 0;
-		goto out;
-	}
-
-	if (test_and_clear_bit(LFL_DLM_UNLOCK, &lp->flags)) {
-		if (lp->lksb.sb_status != -DLM_EUNLOCK) {
-			log_info("unlock sb_status %d %x,%llx flags %lx",
-				 lp->lksb.sb_status, lp->lockname.ln_type,
-				 (unsigned long long)lp->lockname.ln_number,
-				 lp->flags);
-			return;
-		}
-
-		lp->cur = DLM_LOCK_IV;
-		lp->req = DLM_LOCK_IV;
-		lp->lksb.sb_lkid = 0;
-
-		if (test_and_clear_bit(LFL_UNLOCK_DELETE, &lp->flags)) {
-			gdlm_delete_lp(lp);
-			return;
-		}
-		goto out;
-	}
-
-	if (lp->lksb.sb_flags & DLM_SBF_VALNOTVALID)
-		memset(lp->lksb.sb_lvbptr, 0, GDLM_LVB_SIZE);
-
-	if (lp->lksb.sb_flags & DLM_SBF_ALTMODE) {
-		if (lp->req == DLM_LOCK_PR)
-			lp->req = DLM_LOCK_CW;
-		else if (lp->req == DLM_LOCK_CW)
-			lp->req = DLM_LOCK_PR;
-	}
-
-	/*
-	 * A canceled lock request.  The lock was just taken off the delayed
-	 * list and was never even submitted to dlm.
-	 */
-
-	if (test_and_clear_bit(LFL_CANCEL, &lp->flags)) {
-		log_info("complete internal cancel %x,%llx",
-		 	 lp->lockname.ln_type,
-			 (unsigned long long)lp->lockname.ln_number);
-		lp->req = lp->cur;
-		acb.lc_ret |= LM_OUT_CANCELED;
-		goto out;
-	}
-
-	/*
-	 * An error occured.
-	 */
-
-	if (lp->lksb.sb_status) {
-		/* a "normal" error */
-		if ((lp->lksb.sb_status == -EAGAIN) &&
-		    (lp->lkf & DLM_LKF_NOQUEUE)) {
-			lp->req = lp->cur;
-			if (lp->cur == DLM_LOCK_IV)
-				lp->lksb.sb_lkid = 0;
-			goto out;
-		}
-
-		/* this could only happen with cancels I think */
-		log_info("ast sb_status %d %x,%llx flags %lx",
-			 lp->lksb.sb_status, lp->lockname.ln_type,
-			 (unsigned long long)lp->lockname.ln_number,
-			 lp->flags);
-		return;
-	}
-
-	/*
-	 * This is an AST for an EX->EX conversion for sync_lvb from GFS.
-	 */
-
-	if (test_and_clear_bit(LFL_SYNC_LVB, &lp->flags)) {
-		wake_up_ast(lp);
-		return;
-	}
-
-	/*
-	 * A lock has been demoted to NL because it initially completed during
-	 * BLOCK_LOCKS.  Now it must be requested in the originally requested
-	 * mode.
-	 */
-
-	if (test_and_clear_bit(LFL_REREQUEST, &lp->flags)) {
-		gdlm_assert(lp->req == DLM_LOCK_NL, "%x,%llx",
-			    lp->lockname.ln_type,
-			    (unsigned long long)lp->lockname.ln_number);
-		gdlm_assert(lp->prev_req > DLM_LOCK_NL, "%x,%llx",
-			    lp->lockname.ln_type,
-			    (unsigned long long)lp->lockname.ln_number);
-
-		lp->cur = DLM_LOCK_NL;
-		lp->req = lp->prev_req;
-		lp->prev_req = DLM_LOCK_IV;
-		lp->lkf &= ~DLM_LKF_CONVDEADLK;
-
-		set_bit(LFL_NOCACHE, &lp->flags);
-
-		if (test_bit(DFL_BLOCK_LOCKS, &ls->flags) &&
-		    !test_bit(LFL_NOBLOCK, &lp->flags))
-			gdlm_queue_delayed(lp);
-		else
-			queue_submit(lp);
-		return;
-	}
-
-	/*
-	 * A request is granted during dlm recovery.  It may be granted
-	 * because the locks of a failed node were cleared.  In that case,
-	 * there may be inconsistent data beneath this lock and we must wait
-	 * for recovery to complete to use it.  When gfs recovery is done this
-	 * granted lock will be converted to NL and then reacquired in this
-	 * granted state.
-	 */
-
-	if (test_bit(DFL_BLOCK_LOCKS, &ls->flags) &&
-	    !test_bit(LFL_NOBLOCK, &lp->flags) &&
-	    lp->req != DLM_LOCK_NL) {
-
-		lp->cur = lp->req;
-		lp->prev_req = lp->req;
-		lp->req = DLM_LOCK_NL;
-		lp->lkf |= DLM_LKF_CONVERT;
-		lp->lkf &= ~DLM_LKF_CONVDEADLK;
-
-		log_debug("rereq %x,%llx id %x %d,%d",
-			  lp->lockname.ln_type,
-			  (unsigned long long)lp->lockname.ln_number,
-			  lp->lksb.sb_lkid, lp->cur, lp->req);
-
-		set_bit(LFL_REREQUEST, &lp->flags);
-		queue_submit(lp);
-		return;
-	}
-
-	/*
-	 * DLM demoted the lock to NL before it was granted so GFS must be
-	 * told it cannot cache data for this lock.
-	 */
-
-	if (lp->lksb.sb_flags & DLM_SBF_DEMOTED)
-		set_bit(LFL_NOCACHE, &lp->flags);
-
-out:
-	/*
-	 * This is an internal lock_dlm lock
-	 */
-
-	if (test_bit(LFL_INLOCK, &lp->flags)) {
-		clear_bit(LFL_NOBLOCK, &lp->flags);
-		lp->cur = lp->req;
-		wake_up_ast(lp);
-		return;
-	}
-
-	/*
-	 * Normal completion of a lock request.  Tell GFS it now has the lock.
-	 */
-
-	clear_bit(LFL_NOBLOCK, &lp->flags);
-	lp->cur = lp->req;
-
-	acb.lc_name = lp->lockname;
-	acb.lc_ret |= gdlm_make_lmstate(lp->cur);
-
-	ls->fscb(ls->sdp, LM_CB_ASYNC, &acb);
-}
-
-static void gdlm_ast(void *astarg)
-{
-	struct gdlm_lock *lp = astarg;
-	clear_bit(LFL_ACTIVE, &lp->flags);
-	process_complete(lp);
-}
-
-static void process_blocking(struct gdlm_lock *lp, int bast_mode)
-{
-	struct gdlm_ls *ls = lp->ls;
-	unsigned int cb = 0;
-
-	switch (gdlm_make_lmstate(bast_mode)) {
-	case LM_ST_EXCLUSIVE:
-		cb = LM_CB_NEED_E;
-		break;
-	case LM_ST_DEFERRED:
-		cb = LM_CB_NEED_D;
-		break;
-	case LM_ST_SHARED:
-		cb = LM_CB_NEED_S;
-		break;
-	default:
-		gdlm_assert(0, "unknown bast mode %u", bast_mode);
-	}
-
-	ls->fscb(ls->sdp, cb, &lp->lockname);
-}
-
-
-static void gdlm_bast(void *astarg, int mode)
-{
-	struct gdlm_lock *lp = astarg;
-
-	if (!mode) {
-		printk(KERN_INFO "lock_dlm: bast mode zero %x,%llx\n",
-			lp->lockname.ln_type,
-			(unsigned long long)lp->lockname.ln_number);
-		return;
-	}
-
-	process_blocking(lp, mode);
-}
-
-/* convert gfs lock-state to dlm lock-mode */
-
-static s16 make_mode(s16 lmstate)
-{
-	switch (lmstate) {
-	case LM_ST_UNLOCKED:
-		return DLM_LOCK_NL;
-	case LM_ST_EXCLUSIVE:
-		return DLM_LOCK_EX;
-	case LM_ST_DEFERRED:
-		return DLM_LOCK_CW;
-	case LM_ST_SHARED:
-		return DLM_LOCK_PR;
-	}
-	gdlm_assert(0, "unknown LM state %d", lmstate);
-	return -1;
-}
-
-
-/* verify agreement with GFS on the current lock state, NB: DLM_LOCK_NL and
-   DLM_LOCK_IV are both considered LM_ST_UNLOCKED by GFS. */
-
-static void check_cur_state(struct gdlm_lock *lp, unsigned int cur_state)
-{
-	s16 cur = make_mode(cur_state);
-	if (lp->cur != DLM_LOCK_IV)
-		gdlm_assert(lp->cur == cur, "%d, %d", lp->cur, cur);
-}
-
-static inline unsigned int make_flags(struct gdlm_lock *lp,
-				      unsigned int gfs_flags,
-				      s16 cur, s16 req)
-{
-	unsigned int lkf = 0;
-
-	if (gfs_flags & LM_FLAG_TRY)
-		lkf |= DLM_LKF_NOQUEUE;
-
-	if (gfs_flags & LM_FLAG_TRY_1CB) {
-		lkf |= DLM_LKF_NOQUEUE;
-		lkf |= DLM_LKF_NOQUEUEBAST;
-	}
-
-	if (gfs_flags & LM_FLAG_PRIORITY) {
-		lkf |= DLM_LKF_NOORDER;
-		lkf |= DLM_LKF_HEADQUE;
-	}
-
-	if (gfs_flags & LM_FLAG_ANY) {
-		if (req == DLM_LOCK_PR)
-			lkf |= DLM_LKF_ALTCW;
-		else if (req == DLM_LOCK_CW)
-			lkf |= DLM_LKF_ALTPR;
-	}
-
-	if (lp->lksb.sb_lkid != 0) {
-		lkf |= DLM_LKF_CONVERT;
-	}
-
-	if (lp->lvb)
-		lkf |= DLM_LKF_VALBLK;
-
-	return lkf;
-}
-
-/* make_strname - convert GFS lock numbers to a string */
-
-static inline void make_strname(const struct lm_lockname *lockname,
-				struct gdlm_strname *str)
-{
-	sprintf(str->name, "%8x%16llx", lockname->ln_type,
-		(unsigned long long)lockname->ln_number);
-	str->namelen = GDLM_STRNAME_BYTES;
-}
-
-static int gdlm_create_lp(struct gdlm_ls *ls, struct lm_lockname *name,
-			  struct gdlm_lock **lpp)
-{
-	struct gdlm_lock *lp;
-
-	lp = kzalloc(sizeof(struct gdlm_lock), GFP_NOFS);
-	if (!lp)
-		return -ENOMEM;
-
-	lp->lockname = *name;
-	make_strname(name, &lp->strname);
-	lp->ls = ls;
-	lp->cur = DLM_LOCK_IV;
-	INIT_LIST_HEAD(&lp->delay_list);
-
-	spin_lock(&ls->async_lock);
-	ls->all_locks_count++;
-	spin_unlock(&ls->async_lock);
-
-	*lpp = lp;
-	return 0;
-}
-
-int gdlm_get_lock(void *lockspace, struct lm_lockname *name,
-		  void **lockp)
-{
-	struct gdlm_lock *lp;
-	int error;
-
-	error = gdlm_create_lp(lockspace, name, &lp);
-
-	*lockp = lp;
-	return error;
-}
-
-void gdlm_put_lock(void *lock)
-{
-	gdlm_delete_lp(lock);
-}
-
-unsigned int gdlm_do_lock(struct gdlm_lock *lp)
-{
-	struct gdlm_ls *ls = lp->ls;
-	int error, bast = 1;
-
-	/*
-	 * When recovery is in progress, delay lock requests for submission
-	 * once recovery is done.  Requests for recovery (NOEXP) and unlocks
-	 * can pass.
-	 */
-
-	if (test_bit(DFL_BLOCK_LOCKS, &ls->flags) &&
-	    !test_bit(LFL_NOBLOCK, &lp->flags) && lp->req != DLM_LOCK_NL) {
-		gdlm_queue_delayed(lp);
-		return LM_OUT_ASYNC;
-	}
-
-	/*
-	 * Submit the actual lock request.
-	 */
-
-	if (test_bit(LFL_NOBAST, &lp->flags))
-		bast = 0;
-
-	set_bit(LFL_ACTIVE, &lp->flags);
-
-	log_debug("lk %x,%llx id %x %d,%d %x", lp->lockname.ln_type,
-		  (unsigned long long)lp->lockname.ln_number, lp->lksb.sb_lkid,
-		  lp->cur, lp->req, lp->lkf);
-
-	error = dlm_lock(ls->dlm_lockspace, lp->req, &lp->lksb, lp->lkf,
-			 lp->strname.name, lp->strname.namelen, 0, gdlm_ast,
-			 lp, bast ? gdlm_bast : NULL);
-
-	if ((error == -EAGAIN) && (lp->lkf & DLM_LKF_NOQUEUE)) {
-		lp->lksb.sb_status = -EAGAIN;
-		gdlm_ast(lp);
-		error = 0;
-	}
-
-	if (error) {
-		log_error("%s: gdlm_lock %x,%llx err=%d cur=%d req=%d lkf=%x "
-			  "flags=%lx", ls->fsname, lp->lockname.ln_type,
-			  (unsigned long long)lp->lockname.ln_number, error,
-			  lp->cur, lp->req, lp->lkf, lp->flags);
-		return LM_OUT_ERROR;
-	}
-	return LM_OUT_ASYNC;
-}
-
-static unsigned int gdlm_do_unlock(struct gdlm_lock *lp)
-{
-	struct gdlm_ls *ls = lp->ls;
-	unsigned int lkf = 0;
-	int error;
-
-	set_bit(LFL_DLM_UNLOCK, &lp->flags);
-	set_bit(LFL_ACTIVE, &lp->flags);
-
-	if (lp->lvb)
-		lkf = DLM_LKF_VALBLK;
-
-	log_debug("un %x,%llx %x %d %x", lp->lockname.ln_type,
-		  (unsigned long long)lp->lockname.ln_number,
-		  lp->lksb.sb_lkid, lp->cur, lkf);
-
-	error = dlm_unlock(ls->dlm_lockspace, lp->lksb.sb_lkid, lkf, NULL, lp);
-
-	if (error) {
-		log_error("%s: gdlm_unlock %x,%llx err=%d cur=%d req=%d lkf=%x "
-			  "flags=%lx", ls->fsname, lp->lockname.ln_type,
-			  (unsigned long long)lp->lockname.ln_number, error,
-			  lp->cur, lp->req, lp->lkf, lp->flags);
-		return LM_OUT_ERROR;
-	}
-	return LM_OUT_ASYNC;
-}
-
-unsigned int gdlm_lock(void *lock, unsigned int cur_state,
-		       unsigned int req_state, unsigned int flags)
-{
-	struct gdlm_lock *lp = lock;
-
-	if (req_state == LM_ST_UNLOCKED)
-		return gdlm_unlock(lock, cur_state);
-
-	if (req_state == LM_ST_UNLOCKED)
-		return gdlm_unlock(lock, cur_state);
-
-	clear_bit(LFL_DLM_CANCEL, &lp->flags);
-	if (flags & LM_FLAG_NOEXP)
-		set_bit(LFL_NOBLOCK, &lp->flags);
-
-	check_cur_state(lp, cur_state);
-	lp->req = make_mode(req_state);
-	lp->lkf = make_flags(lp, flags, lp->cur, lp->req);
-
-	return gdlm_do_lock(lp);
-}
-
-unsigned int gdlm_unlock(void *lock, unsigned int cur_state)
-{
-	struct gdlm_lock *lp = lock;
-
-	clear_bit(LFL_DLM_CANCEL, &lp->flags);
-	if (lp->cur == DLM_LOCK_IV)
-		return 0;
-	return gdlm_do_unlock(lp);
-}
-
-void gdlm_cancel(void *lock)
-{
-	struct gdlm_lock *lp = lock;
-	struct gdlm_ls *ls = lp->ls;
-	int error, delay_list = 0;
-
-	if (test_bit(LFL_DLM_CANCEL, &lp->flags))
-		return;
-
-	log_info("gdlm_cancel %x,%llx flags %lx", lp->lockname.ln_type,
-		 (unsigned long long)lp->lockname.ln_number, lp->flags);
-
-	spin_lock(&ls->async_lock);
-	if (!list_empty(&lp->delay_list)) {
-		list_del_init(&lp->delay_list);
-		delay_list = 1;
-	}
-	spin_unlock(&ls->async_lock);
-
-	if (delay_list) {
-		set_bit(LFL_CANCEL, &lp->flags);
-		set_bit(LFL_ACTIVE, &lp->flags);
-		gdlm_ast(lp);
-		return;
-	}
-
-	if (!test_bit(LFL_ACTIVE, &lp->flags) ||
-	    test_bit(LFL_DLM_UNLOCK, &lp->flags)) {
-		log_info("gdlm_cancel skip %x,%llx flags %lx",
-		 	 lp->lockname.ln_type,
-			 (unsigned long long)lp->lockname.ln_number, lp->flags);
-		return;
-	}
-
-	/* the lock is blocked in the dlm */
-
-	set_bit(LFL_DLM_CANCEL, &lp->flags);
-	set_bit(LFL_ACTIVE, &lp->flags);
-
-	error = dlm_unlock(ls->dlm_lockspace, lp->lksb.sb_lkid, DLM_LKF_CANCEL,
-			   NULL, lp);
-
-	log_info("gdlm_cancel rv %d %x,%llx flags %lx", error,
-		 lp->lockname.ln_type,
-		 (unsigned long long)lp->lockname.ln_number, lp->flags);
-
-	if (error == -EBUSY)
-		clear_bit(LFL_DLM_CANCEL, &lp->flags);
-}
-
-static int gdlm_add_lvb(struct gdlm_lock *lp)
-{
-	char *lvb;
-
-	lvb = kzalloc(GDLM_LVB_SIZE, GFP_NOFS);
-	if (!lvb)
-		return -ENOMEM;
-
-	lp->lksb.sb_lvbptr = lvb;
-	lp->lvb = lvb;
-	return 0;
-}
-
-static void gdlm_del_lvb(struct gdlm_lock *lp)
-{
-	kfree(lp->lvb);
-	lp->lvb = NULL;
-	lp->lksb.sb_lvbptr = NULL;
-}
-
-static int gdlm_ast_wait(void *word)
-{
-	schedule();
-	return 0;
-}
-
-/* This can do a synchronous dlm request (requiring a lock_dlm thread to get
-   the completion) because gfs won't call hold_lvb() during a callback (from
-   the context of a lock_dlm thread). */
-
-static int hold_null_lock(struct gdlm_lock *lp)
-{
-	struct gdlm_lock *lpn = NULL;
-	int error;
-
-	if (lp->hold_null) {
-		printk(KERN_INFO "lock_dlm: lvb already held\n");
-		return 0;
-	}
-
-	error = gdlm_create_lp(lp->ls, &lp->lockname, &lpn);
-	if (error)
-		goto out;
-
-	lpn->lksb.sb_lvbptr = junk_lvb;
-	lpn->lvb = junk_lvb;
-
-	lpn->req = DLM_LOCK_NL;
-	lpn->lkf = DLM_LKF_VALBLK | DLM_LKF_EXPEDITE;
-	set_bit(LFL_NOBAST, &lpn->flags);
-	set_bit(LFL_INLOCK, &lpn->flags);
-	set_bit(LFL_AST_WAIT, &lpn->flags);
-
-	gdlm_do_lock(lpn);
-	wait_on_bit(&lpn->flags, LFL_AST_WAIT, gdlm_ast_wait, TASK_UNINTERRUPTIBLE);
-	error = lpn->lksb.sb_status;
-	if (error) {
-		printk(KERN_INFO "lock_dlm: hold_null_lock dlm error %d\n",
-		       error);
-		gdlm_delete_lp(lpn);
-		lpn = NULL;
-	}
-out:
-	lp->hold_null = lpn;
-	return error;
-}
-
-/* This cannot do a synchronous dlm request (requiring a lock_dlm thread to get
-   the completion) because gfs may call unhold_lvb() during a callback (from
-   the context of a lock_dlm thread) which could cause a deadlock since the
-   other lock_dlm thread could be engaged in recovery. */
-
-static void unhold_null_lock(struct gdlm_lock *lp)
-{
-	struct gdlm_lock *lpn = lp->hold_null;
-
-	gdlm_assert(lpn, "%x,%llx", lp->lockname.ln_type,
-		    (unsigned long long)lp->lockname.ln_number);
-	lpn->lksb.sb_lvbptr = NULL;
-	lpn->lvb = NULL;
-	set_bit(LFL_UNLOCK_DELETE, &lpn->flags);
-	gdlm_do_unlock(lpn);
-	lp->hold_null = NULL;
-}
-
-/* Acquire a NL lock because gfs requires the value block to remain
-   intact on the resource while the lvb is "held" even if it's holding no locks
-   on the resource. */
-
-int gdlm_hold_lvb(void *lock, char **lvbp)
-{
-	struct gdlm_lock *lp = lock;
-	int error;
-
-	error = gdlm_add_lvb(lp);
-	if (error)
-		return error;
-
-	*lvbp = lp->lvb;
-
-	error = hold_null_lock(lp);
-	if (error)
-		gdlm_del_lvb(lp);
-
-	return error;
-}
-
-void gdlm_unhold_lvb(void *lock, char *lvb)
-{
-	struct gdlm_lock *lp = lock;
-
-	unhold_null_lock(lp);
-	gdlm_del_lvb(lp);
-}
-
-void gdlm_submit_delayed(struct gdlm_ls *ls)
-{
-	struct gdlm_lock *lp, *safe;
-
-	spin_lock(&ls->async_lock);
-	list_for_each_entry_safe(lp, safe, &ls->delayed, delay_list) {
-		list_del_init(&lp->delay_list);
-		list_add_tail(&lp->delay_list, &ls->submit);
-	}
-	spin_unlock(&ls->async_lock);
-	wake_up(&ls->thread_wait);
-}
-
diff --git a/fs/gfs2/locking/dlm/lock_dlm.h b/fs/gfs2/locking/dlm/lock_dlm.h
deleted file mode 100644
index 3c98e7c6f93b..000000000000
--- a/fs/gfs2/locking/dlm/lock_dlm.h
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef LOCK_DLM_DOT_H
-#define LOCK_DLM_DOT_H
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/list.h>
-#include <linux/socket.h>
-#include <linux/delay.h>
-#include <linux/kthread.h>
-#include <linux/kobject.h>
-#include <linux/fcntl.h>
-#include <linux/wait.h>
-#include <net/sock.h>
-
-#include <linux/dlm.h>
-#include <linux/dlm_plock.h>
-#include <linux/lm_interface.h>
-
-/*
- * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a
- * prefix of lock_dlm_ gets awkward.  Externally, GFS refers to this module
- * as "lock_dlm".
- */
-
-#define GDLM_STRNAME_BYTES	24
-#define GDLM_LVB_SIZE		32
-#define GDLM_DROP_COUNT		0
-#define GDLM_DROP_PERIOD	60
-#define GDLM_NAME_LEN		128
-
-/* GFS uses 12 bytes to identify a resource (32 bit type + 64 bit number).
-   We sprintf these numbers into a 24 byte string of hex values to make them
-   human-readable (to make debugging simpler.) */
-
-struct gdlm_strname {
-	unsigned char		name[GDLM_STRNAME_BYTES];
-	unsigned short		namelen;
-};
-
-enum {
-	DFL_BLOCK_LOCKS		= 0,
-	DFL_SPECTATOR		= 1,
-	DFL_WITHDRAW		= 2,
-};
-
-struct gdlm_ls {
-	u32		id;
-	int			jid;
-	int			first;
-	int			first_done;
-	unsigned long		flags;
-	struct kobject		kobj;
-	char			clustername[GDLM_NAME_LEN];
-	char			fsname[GDLM_NAME_LEN];
-	int			fsflags;
-	dlm_lockspace_t		*dlm_lockspace;
-	lm_callback_t		fscb;
-	struct gfs2_sbd		*sdp;
-	int			recover_jid;
-	int			recover_jid_done;
-	int			recover_jid_status;
-	spinlock_t		async_lock;
-	struct list_head	delayed;
-	struct list_head	submit;
-	u32		all_locks_count;
-	wait_queue_head_t	wait_control;
-	struct task_struct	*thread;
-	wait_queue_head_t	thread_wait;
-};
-
-enum {
-	LFL_NOBLOCK		= 0,
-	LFL_NOCACHE		= 1,
-	LFL_DLM_UNLOCK		= 2,
-	LFL_DLM_CANCEL		= 3,
-	LFL_SYNC_LVB		= 4,
-	LFL_FORCE_PROMOTE	= 5,
-	LFL_REREQUEST		= 6,
-	LFL_ACTIVE		= 7,
-	LFL_INLOCK		= 8,
-	LFL_CANCEL		= 9,
-	LFL_NOBAST		= 10,
-	LFL_HEADQUE		= 11,
-	LFL_UNLOCK_DELETE	= 12,
-	LFL_AST_WAIT		= 13,
-};
-
-struct gdlm_lock {
-	struct gdlm_ls		*ls;
-	struct lm_lockname	lockname;
-	struct gdlm_strname	strname;
-	char			*lvb;
-	struct dlm_lksb		lksb;
-
-	s16			cur;
-	s16			req;
-	s16			prev_req;
-	u32			lkf;		/* dlm flags DLM_LKF_ */
-	unsigned long		flags;		/* lock_dlm flags LFL_ */
-
-	struct list_head	delay_list;	/* delayed */
-	struct gdlm_lock	*hold_null;	/* NL lock for hold_lvb */
-};
-
-#define gdlm_assert(assertion, fmt, args...)                                  \
-do {                                                                          \
-	if (unlikely(!(assertion))) {                                         \
-		printk(KERN_EMERG "lock_dlm: fatal assertion failed \"%s\"\n" \
-				  "lock_dlm:  " fmt "\n",                     \
-				  #assertion, ##args);                        \
-		BUG();                                                        \
-	}                                                                     \
-} while (0)
-
-#define log_print(lev, fmt, arg...) printk(lev "lock_dlm: " fmt "\n" , ## arg)
-#define log_info(fmt, arg...)  log_print(KERN_INFO , fmt , ## arg)
-#define log_error(fmt, arg...) log_print(KERN_ERR , fmt , ## arg)
-#ifdef LOCK_DLM_LOG_DEBUG
-#define log_debug(fmt, arg...) log_print(KERN_DEBUG , fmt , ## arg)
-#else
-#define log_debug(fmt, arg...)
-#endif
-
-/* sysfs.c */
-
-int gdlm_sysfs_init(void);
-void gdlm_sysfs_exit(void);
-int gdlm_kobject_setup(struct gdlm_ls *, struct kobject *);
-void gdlm_kobject_release(struct gdlm_ls *);
-
-/* thread.c */
-
-int gdlm_init_threads(struct gdlm_ls *);
-void gdlm_release_threads(struct gdlm_ls *);
-
-/* lock.c */
-
-void gdlm_submit_delayed(struct gdlm_ls *);
-unsigned int gdlm_do_lock(struct gdlm_lock *);
-
-int gdlm_get_lock(void *, struct lm_lockname *, void **);
-void gdlm_put_lock(void *);
-unsigned int gdlm_lock(void *, unsigned int, unsigned int, unsigned int);
-unsigned int gdlm_unlock(void *, unsigned int);
-void gdlm_cancel(void *);
-int gdlm_hold_lvb(void *, char **);
-void gdlm_unhold_lvb(void *, char *);
-
-/* mount.c */
-
-extern const struct lm_lockops gdlm_ops;
-
-#endif
-
diff --git a/fs/gfs2/locking/dlm/main.c b/fs/gfs2/locking/dlm/main.c
deleted file mode 100644
index b9a03a7ff801..000000000000
--- a/fs/gfs2/locking/dlm/main.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include <linux/init.h>
-
-#include "lock_dlm.h"
-
-static int __init init_lock_dlm(void)
-{
-	int error;
-
-	error = gfs2_register_lockproto(&gdlm_ops);
-	if (error) {
-		printk(KERN_WARNING "lock_dlm:  can't register protocol: %d\n",
-		       error);
-		return error;
-	}
-
-	error = gdlm_sysfs_init();
-	if (error) {
-		gfs2_unregister_lockproto(&gdlm_ops);
-		return error;
-	}
-
-	printk(KERN_INFO
-	       "Lock_DLM (built %s %s) installed\n", __DATE__, __TIME__);
-	return 0;
-}
-
-static void __exit exit_lock_dlm(void)
-{
-	gdlm_sysfs_exit();
-	gfs2_unregister_lockproto(&gdlm_ops);
-}
-
-module_init(init_lock_dlm);
-module_exit(exit_lock_dlm);
-
-MODULE_DESCRIPTION("GFS DLM Locking Module");
-MODULE_AUTHOR("Red Hat, Inc.");
-MODULE_LICENSE("GPL");
-
diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c
deleted file mode 100644
index 1aa7eb6a0226..000000000000
--- a/fs/gfs2/locking/dlm/mount.c
+++ /dev/null
@@ -1,276 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include "lock_dlm.h"
-
-const struct lm_lockops gdlm_ops;
-
-
-static struct gdlm_ls *init_gdlm(lm_callback_t cb, struct gfs2_sbd *sdp,
-				 int flags, char *table_name)
-{
-	struct gdlm_ls *ls;
-	char buf[256], *p;
-
-	ls = kzalloc(sizeof(struct gdlm_ls), GFP_KERNEL);
-	if (!ls)
-		return NULL;
-
-	ls->fscb = cb;
-	ls->sdp = sdp;
-	ls->fsflags = flags;
-	spin_lock_init(&ls->async_lock);
-	INIT_LIST_HEAD(&ls->delayed);
-	INIT_LIST_HEAD(&ls->submit);
-	init_waitqueue_head(&ls->thread_wait);
-	init_waitqueue_head(&ls->wait_control);
-	ls->jid = -1;
-
-	strncpy(buf, table_name, 256);
-	buf[255] = '\0';
-
-	p = strchr(buf, ':');
-	if (!p) {
-		log_info("invalid table_name \"%s\"", table_name);
-		kfree(ls);
-		return NULL;
-	}
-	*p = '\0';
-	p++;
-
-	strncpy(ls->clustername, buf, GDLM_NAME_LEN);
-	strncpy(ls->fsname, p, GDLM_NAME_LEN);
-
-	return ls;
-}
-
-static int make_args(struct gdlm_ls *ls, char *data_arg, int *nodir)
-{
-	char data[256];
-	char *options, *x, *y;
-	int error = 0;
-
-	memset(data, 0, 256);
-	strncpy(data, data_arg, 255);
-
-	if (!strlen(data)) {
-		log_error("no mount options, (u)mount helpers not installed");
-		return -EINVAL;
-	}
-
-	for (options = data; (x = strsep(&options, ":")); ) {
-		if (!*x)
-			continue;
-
-		y = strchr(x, '=');
-		if (y)
-			*y++ = 0;
-
-		if (!strcmp(x, "jid")) {
-			if (!y) {
-				log_error("need argument to jid");
-				error = -EINVAL;
-				break;
-			}
-			sscanf(y, "%u", &ls->jid);
-
-		} else if (!strcmp(x, "first")) {
-			if (!y) {
-				log_error("need argument to first");
-				error = -EINVAL;
-				break;
-			}
-			sscanf(y, "%u", &ls->first);
-
-		} else if (!strcmp(x, "id")) {
-			if (!y) {
-				log_error("need argument to id");
-				error = -EINVAL;
-				break;
-			}
-			sscanf(y, "%u", &ls->id);
-
-		} else if (!strcmp(x, "nodir")) {
-			if (!y) {
-				log_error("need argument to nodir");
-				error = -EINVAL;
-				break;
-			}
-			sscanf(y, "%u", nodir);
-
-		} else {
-			log_error("unkonwn option: %s", x);
-			error = -EINVAL;
-			break;
-		}
-	}
-
-	return error;
-}
-
-static int gdlm_mount(char *table_name, char *host_data,
-			lm_callback_t cb, void *cb_data,
-			unsigned int min_lvb_size, int flags,
-			struct lm_lockstruct *lockstruct,
-			struct kobject *fskobj)
-{
-	struct gdlm_ls *ls;
-	int error = -ENOMEM, nodir = 0;
-
-	if (min_lvb_size > GDLM_LVB_SIZE)
-		goto out;
-
-	ls = init_gdlm(cb, cb_data, flags, table_name);
-	if (!ls)
-		goto out;
-
-	error = make_args(ls, host_data, &nodir);
-	if (error)
-		goto out;
-
-	error = gdlm_init_threads(ls);
-	if (error)
-		goto out_free;
-
-	error = gdlm_kobject_setup(ls, fskobj);
-	if (error)
-		goto out_thread;
-
-	error = dlm_new_lockspace(ls->fsname, strlen(ls->fsname),
-				  &ls->dlm_lockspace,
-				  DLM_LSFL_FS | DLM_LSFL_NEWEXCL |
-				  (nodir ? DLM_LSFL_NODIR : 0),
-				  GDLM_LVB_SIZE);
-	if (error) {
-		log_error("dlm_new_lockspace error %d", error);
-		goto out_kobj;
-	}
-
-	lockstruct->ls_jid = ls->jid;
-	lockstruct->ls_first = ls->first;
-	lockstruct->ls_lockspace = ls;
-	lockstruct->ls_ops = &gdlm_ops;
-	lockstruct->ls_flags = 0;
-	lockstruct->ls_lvb_size = GDLM_LVB_SIZE;
-	return 0;
-
-out_kobj:
-	gdlm_kobject_release(ls);
-out_thread:
-	gdlm_release_threads(ls);
-out_free:
-	kfree(ls);
-out:
-	return error;
-}
-
-static void gdlm_unmount(void *lockspace)
-{
-	struct gdlm_ls *ls = lockspace;
-
-	log_debug("unmount flags %lx", ls->flags);
-
-	/* FIXME: serialize unmount and withdraw in case they
-	   happen at once.  Also, if unmount follows withdraw,
-	   wait for withdraw to finish. */
-
-	if (test_bit(DFL_WITHDRAW, &ls->flags))
-		goto out;
-
-	gdlm_kobject_release(ls);
-	dlm_release_lockspace(ls->dlm_lockspace, 2);
-	gdlm_release_threads(ls);
-	BUG_ON(ls->all_locks_count);
-out:
-	kfree(ls);
-}
-
-static void gdlm_recovery_done(void *lockspace, unsigned int jid,
-                               unsigned int message)
-{
-	char env_jid[20];
-	char env_status[20];
-	char *envp[] = { env_jid, env_status, NULL };
-	struct gdlm_ls *ls = lockspace;
-	ls->recover_jid_done = jid;
-	ls->recover_jid_status = message;
-	sprintf(env_jid, "JID=%d", jid);
-	sprintf(env_status, "RECOVERY=%s",
-		message == LM_RD_SUCCESS ? "Done" : "Failed");
-	kobject_uevent_env(&ls->kobj, KOBJ_CHANGE, envp);
-}
-
-static void gdlm_others_may_mount(void *lockspace)
-{
-	char *message = "FIRSTMOUNT=Done";
-	char *envp[] = { message, NULL };
-	struct gdlm_ls *ls = lockspace;
-	ls->first_done = 1;
-	kobject_uevent_env(&ls->kobj, KOBJ_CHANGE, envp);
-}
-
-/* Userspace gets the offline uevent, blocks new gfs locks on
-   other mounters, and lets us know (sets WITHDRAW flag).  Then,
-   userspace leaves the mount group while we leave the lockspace. */
-
-static void gdlm_withdraw(void *lockspace)
-{
-	struct gdlm_ls *ls = lockspace;
-
-	kobject_uevent(&ls->kobj, KOBJ_OFFLINE);
-
-	wait_event_interruptible(ls->wait_control,
-				 test_bit(DFL_WITHDRAW, &ls->flags));
-
-	dlm_release_lockspace(ls->dlm_lockspace, 2);
-	gdlm_release_threads(ls);
-	gdlm_kobject_release(ls);
-}
-
-static int gdlm_plock(void *lockspace, struct lm_lockname *name,
-	       struct file *file, int cmd, struct file_lock *fl)
-{
-	struct gdlm_ls *ls = lockspace;
-	return dlm_posix_lock(ls->dlm_lockspace, name->ln_number, file, cmd, fl);
-}
-
-static int gdlm_punlock(void *lockspace, struct lm_lockname *name,
-		 struct file *file, struct file_lock *fl)
-{
-	struct gdlm_ls *ls = lockspace;
-	return dlm_posix_unlock(ls->dlm_lockspace, name->ln_number, file, fl);
-}
-
-static int gdlm_plock_get(void *lockspace, struct lm_lockname *name,
-		   struct file *file, struct file_lock *fl)
-{
-	struct gdlm_ls *ls = lockspace;
-	return dlm_posix_get(ls->dlm_lockspace, name->ln_number, file, fl);
-}
-
-const struct lm_lockops gdlm_ops = {
-	.lm_proto_name = "lock_dlm",
-	.lm_mount = gdlm_mount,
-	.lm_others_may_mount = gdlm_others_may_mount,
-	.lm_unmount = gdlm_unmount,
-	.lm_withdraw = gdlm_withdraw,
-	.lm_get_lock = gdlm_get_lock,
-	.lm_put_lock = gdlm_put_lock,
-	.lm_lock = gdlm_lock,
-	.lm_unlock = gdlm_unlock,
-	.lm_plock = gdlm_plock,
-	.lm_punlock = gdlm_punlock,
-	.lm_plock_get = gdlm_plock_get,
-	.lm_cancel = gdlm_cancel,
-	.lm_hold_lvb = gdlm_hold_lvb,
-	.lm_unhold_lvb = gdlm_unhold_lvb,
-	.lm_recovery_done = gdlm_recovery_done,
-	.lm_owner = THIS_MODULE,
-};
-
diff --git a/fs/gfs2/locking/dlm/sysfs.c b/fs/gfs2/locking/dlm/sysfs.c
deleted file mode 100644
index 9b7edcf7bd49..000000000000
--- a/fs/gfs2/locking/dlm/sysfs.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include <linux/ctype.h>
-#include <linux/stat.h>
-
-#include "lock_dlm.h"
-
-static ssize_t proto_name_show(struct gdlm_ls *ls, char *buf)
-{
-	return sprintf(buf, "%s\n", gdlm_ops.lm_proto_name);
-}
-
-static ssize_t block_show(struct gdlm_ls *ls, char *buf)
-{
-	ssize_t ret;
-	int val = 0;
-
-	if (test_bit(DFL_BLOCK_LOCKS, &ls->flags))
-		val = 1;
-	ret = sprintf(buf, "%d\n", val);
-	return ret;
-}
-
-static ssize_t block_store(struct gdlm_ls *ls, const char *buf, size_t len)
-{
-	ssize_t ret = len;
-	int val;
-
-	val = simple_strtol(buf, NULL, 0);
-
-	if (val == 1)
-		set_bit(DFL_BLOCK_LOCKS, &ls->flags);
-	else if (val == 0) {
-		clear_bit(DFL_BLOCK_LOCKS, &ls->flags);
-		gdlm_submit_delayed(ls);
-	} else {
-		ret = -EINVAL;
-	}
-	return ret;
-}
-
-static ssize_t withdraw_show(struct gdlm_ls *ls, char *buf)
-{
-	ssize_t ret;
-	int val = 0;
-
-	if (test_bit(DFL_WITHDRAW, &ls->flags))
-		val = 1;
-	ret = sprintf(buf, "%d\n", val);
-	return ret;
-}
-
-static ssize_t withdraw_store(struct gdlm_ls *ls, const char *buf, size_t len)
-{
-	ssize_t ret = len;
-	int val;
-
-	val = simple_strtol(buf, NULL, 0);
-
-	if (val == 1)
-		set_bit(DFL_WITHDRAW, &ls->flags);
-	else
-		ret = -EINVAL;
-	wake_up(&ls->wait_control);
-	return ret;
-}
-
-static ssize_t id_show(struct gdlm_ls *ls, char *buf)
-{
-	return sprintf(buf, "%u\n", ls->id);
-}
-
-static ssize_t jid_show(struct gdlm_ls *ls, char *buf)
-{
-	return sprintf(buf, "%d\n", ls->jid);
-}
-
-static ssize_t first_show(struct gdlm_ls *ls, char *buf)
-{
-	return sprintf(buf, "%d\n", ls->first);
-}
-
-static ssize_t first_done_show(struct gdlm_ls *ls, char *buf)
-{
-	return sprintf(buf, "%d\n", ls->first_done);
-}
-
-static ssize_t recover_show(struct gdlm_ls *ls, char *buf)
-{
-	return sprintf(buf, "%d\n", ls->recover_jid);
-}
-
-static ssize_t recover_store(struct gdlm_ls *ls, const char *buf, size_t len)
-{
-	ls->recover_jid = simple_strtol(buf, NULL, 0);
-	ls->fscb(ls->sdp, LM_CB_NEED_RECOVERY, &ls->recover_jid);
-	return len;
-}
-
-static ssize_t recover_done_show(struct gdlm_ls *ls, char *buf)
-{
-	return sprintf(buf, "%d\n", ls->recover_jid_done);
-}
-
-static ssize_t recover_status_show(struct gdlm_ls *ls, char *buf)
-{
-	return sprintf(buf, "%d\n", ls->recover_jid_status);
-}
-
-struct gdlm_attr {
-	struct attribute attr;
-	ssize_t (*show)(struct gdlm_ls *, char *);
-	ssize_t (*store)(struct gdlm_ls *, const char *, size_t);
-};
-
-#define GDLM_ATTR(_name,_mode,_show,_store) \
-static struct gdlm_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store)
-
-GDLM_ATTR(proto_name,     0444, proto_name_show,     NULL);
-GDLM_ATTR(block,          0644, block_show,          block_store);
-GDLM_ATTR(withdraw,       0644, withdraw_show,       withdraw_store);
-GDLM_ATTR(id,             0444, id_show,             NULL);
-GDLM_ATTR(jid,            0444, jid_show,            NULL);
-GDLM_ATTR(first,          0444, first_show,          NULL);
-GDLM_ATTR(first_done,     0444, first_done_show,     NULL);
-GDLM_ATTR(recover,        0644, recover_show,        recover_store);
-GDLM_ATTR(recover_done,   0444, recover_done_show,   NULL);
-GDLM_ATTR(recover_status, 0444, recover_status_show, NULL);
-
-static struct attribute *gdlm_attrs[] = {
-	&gdlm_attr_proto_name.attr,
-	&gdlm_attr_block.attr,
-	&gdlm_attr_withdraw.attr,
-	&gdlm_attr_id.attr,
-	&gdlm_attr_jid.attr,
-	&gdlm_attr_first.attr,
-	&gdlm_attr_first_done.attr,
-	&gdlm_attr_recover.attr,
-	&gdlm_attr_recover_done.attr,
-	&gdlm_attr_recover_status.attr,
-	NULL,
-};
-
-static ssize_t gdlm_attr_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	struct gdlm_ls *ls = container_of(kobj, struct gdlm_ls, kobj);
-	struct gdlm_attr *a = container_of(attr, struct gdlm_attr, attr);
-	return a->show ? a->show(ls, buf) : 0;
-}
-
-static ssize_t gdlm_attr_store(struct kobject *kobj, struct attribute *attr,
-			       const char *buf, size_t len)
-{
-	struct gdlm_ls *ls = container_of(kobj, struct gdlm_ls, kobj);
-	struct gdlm_attr *a = container_of(attr, struct gdlm_attr, attr);
-	return a->store ? a->store(ls, buf, len) : len;
-}
-
-static struct sysfs_ops gdlm_attr_ops = {
-	.show  = gdlm_attr_show,
-	.store = gdlm_attr_store,
-};
-
-static struct kobj_type gdlm_ktype = {
-	.default_attrs = gdlm_attrs,
-	.sysfs_ops     = &gdlm_attr_ops,
-};
-
-static struct kset *gdlm_kset;
-
-int gdlm_kobject_setup(struct gdlm_ls *ls, struct kobject *fskobj)
-{
-	int error;
-
-	ls->kobj.kset = gdlm_kset;
-	error = kobject_init_and_add(&ls->kobj, &gdlm_ktype, fskobj,
-				     "lock_module");
-	if (error)
-		log_error("can't register kobj %d", error);
-	kobject_uevent(&ls->kobj, KOBJ_ADD);
-
-	return error;
-}
-
-void gdlm_kobject_release(struct gdlm_ls *ls)
-{
-	kobject_put(&ls->kobj);
-}
-
-static int gdlm_uevent(struct kset *kset, struct kobject *kobj,
-		       struct kobj_uevent_env *env)
-{
-        struct gdlm_ls *ls = container_of(kobj, struct gdlm_ls, kobj);
-        add_uevent_var(env, "LOCKTABLE=%s:%s", ls->clustername, ls->fsname);
-        add_uevent_var(env, "LOCKPROTO=lock_dlm");
-        return 0;
-}
-
-static struct kset_uevent_ops gdlm_uevent_ops = {
-	.uevent = gdlm_uevent,
-};
-
-
-int gdlm_sysfs_init(void)
-{
-	gdlm_kset = kset_create_and_add("lock_dlm", &gdlm_uevent_ops, kernel_kobj);
-	if (!gdlm_kset) {
-		printk(KERN_WARNING "%s: can not create kset\n", __func__);
-		return -ENOMEM;
-	}
-	return 0;
-}
-
-void gdlm_sysfs_exit(void)
-{
-	kset_unregister(gdlm_kset);
-}
-
diff --git a/fs/gfs2/locking/dlm/thread.c b/fs/gfs2/locking/dlm/thread.c
deleted file mode 100644
index 38823efd698c..000000000000
--- a/fs/gfs2/locking/dlm/thread.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include "lock_dlm.h"
-
-static inline int no_work(struct gdlm_ls *ls)
-{
-	int ret;
-
-	spin_lock(&ls->async_lock);
-	ret = list_empty(&ls->submit);
-	spin_unlock(&ls->async_lock);
-
-	return ret;
-}
-
-static int gdlm_thread(void *data)
-{
-	struct gdlm_ls *ls = (struct gdlm_ls *) data;
-	struct gdlm_lock *lp = NULL;
-
-	while (!kthread_should_stop()) {
-		wait_event_interruptible(ls->thread_wait,
-				!no_work(ls) || kthread_should_stop());
-
-		spin_lock(&ls->async_lock);
-
-		if (!list_empty(&ls->submit)) {
-			lp = list_entry(ls->submit.next, struct gdlm_lock,
-					delay_list);
-			list_del_init(&lp->delay_list);
-			spin_unlock(&ls->async_lock);
-			gdlm_do_lock(lp);
-			spin_lock(&ls->async_lock);
-		}
-		spin_unlock(&ls->async_lock);
-	}
-
-	return 0;
-}
-
-int gdlm_init_threads(struct gdlm_ls *ls)
-{
-	struct task_struct *p;
-	int error;
-
-	p = kthread_run(gdlm_thread, ls, "lock_dlm");
-	error = IS_ERR(p);
-	if (error) {
-		log_error("can't start lock_dlm thread %d", error);
-		return error;
-	}
-	ls->thread = p;
-
-	return 0;
-}
-
-void gdlm_release_threads(struct gdlm_ls *ls)
-{
-	kthread_stop(ls->thread);
-}
-
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index ad305854bdc6..98918a756410 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -14,7 +14,6 @@
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index 4390f6f4047d..80e4f5f898bb 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -13,7 +13,6 @@
 #include <linux/completion.h>
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 86fe06798711..a6892ed0840a 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -14,7 +14,6 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <asm/atomic.h>
 
 #include "gfs2.h"
@@ -47,8 +46,6 @@ static void gfs2_init_glock_once(void *foo)
 	INIT_HLIST_NODE(&gl->gl_list);
 	spin_lock_init(&gl->gl_spin);
 	INIT_LIST_HEAD(&gl->gl_holders);
-	gl->gl_lvb = NULL;
-	atomic_set(&gl->gl_lvb_count, 0);
 	INIT_LIST_HEAD(&gl->gl_lru);
 	INIT_LIST_HEAD(&gl->gl_ail_list);
 	atomic_set(&gl->gl_ail_count, 0);
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index 09853620c951..870d65ae7ae2 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -19,7 +19,6 @@
 #include <linux/delay.h>
 #include <linux/bio.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/mount.c b/fs/gfs2/mount.c
index 3524ae81189b..fba502aa8b2d 100644
--- a/fs/gfs2/mount.c
+++ b/fs/gfs2/mount.c
@@ -12,7 +12,6 @@
 #include <linux/completion.h>
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <linux/parser.h>
 
 #include "gfs2.h"
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index dde4ead2c3be..a6d00e8ffe10 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -19,7 +19,6 @@
 #include <linux/writeback.h>
 #include <linux/swap.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <linux/backing-dev.h>
 
 #include "gfs2.h"
diff --git a/fs/gfs2/ops_dentry.c b/fs/gfs2/ops_dentry.c
index c2ad36330ca3..5eb57b044382 100644
--- a/fs/gfs2/ops_dentry.c
+++ b/fs/gfs2/ops_dentry.c
@@ -13,7 +13,6 @@
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index 7fdeb14ddd1a..9200ef221716 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -14,7 +14,6 @@
 #include <linux/exportfs.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index 93fe41b67f97..99d726f1c7a6 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -20,9 +20,10 @@
 #include <linux/gfs2_ondisk.h>
 #include <linux/ext2_fs.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 #include <linux/writeback.h>
 #include <asm/uaccess.h>
+#include <linux/dlm.h>
+#include <linux/dlm_plock.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -560,57 +561,24 @@ static int gfs2_fsync(struct file *file, struct dentry *dentry, int datasync)
 	return ret;
 }
 
+#ifdef CONFIG_GFS2_FS_LOCKING_DLM
+
 /**
  * gfs2_setlease - acquire/release a file lease
  * @file: the file pointer
  * @arg: lease type
  * @fl: file lock
  *
+ * We don't currently have a way to enforce a lease across the whole
+ * cluster; until we do, disable leases (by just returning -EINVAL),
+ * unless the administrator has requested purely local locking.
+ *
  * Returns: errno
  */
 
 static int gfs2_setlease(struct file *file, long arg, struct file_lock **fl)
 {
-	struct gfs2_sbd *sdp = GFS2_SB(file->f_mapping->host);
-
-	/*
-	 * We don't currently have a way to enforce a lease across the whole
-	 * cluster; until we do, disable leases (by just returning -EINVAL),
-	 * unless the administrator has requested purely local locking.
-	 */
-	if (!sdp->sd_args.ar_localflocks)
-		return -EINVAL;
-	return generic_setlease(file, arg, fl);
-}
-
-static int gfs2_lm_plock_get(struct gfs2_sbd *sdp, struct lm_lockname *name,
-		      struct file *file, struct file_lock *fl)
-{
-	int error = -EIO;
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = sdp->sd_lockstruct.ls_ops->lm_plock_get(
-				sdp->sd_lockstruct.ls_lockspace, name, file, fl);
-	return error;
-}
-
-static int gfs2_lm_plock(struct gfs2_sbd *sdp, struct lm_lockname *name,
-		  struct file *file, int cmd, struct file_lock *fl)
-{
-	int error = -EIO;
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = sdp->sd_lockstruct.ls_ops->lm_plock(
-				sdp->sd_lockstruct.ls_lockspace, name, file, cmd, fl);
-	return error;
-}
-
-static int gfs2_lm_punlock(struct gfs2_sbd *sdp, struct lm_lockname *name,
-		    struct file *file, struct file_lock *fl)
-{
-	int error = -EIO;
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = sdp->sd_lockstruct.ls_ops->lm_punlock(
-				sdp->sd_lockstruct.ls_lockspace, name, file, fl);
-	return error;
+	return -EINVAL;
 }
 
 /**
@@ -626,9 +594,7 @@ static int gfs2_lock(struct file *file, int cmd, struct file_lock *fl)
 {
 	struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
 	struct gfs2_sbd *sdp = GFS2_SB(file->f_mapping->host);
-	struct lm_lockname name =
-		{ .ln_number = ip->i_no_addr,
-		  .ln_type = LM_TYPE_PLOCK };
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
 
 	if (!(fl->fl_flags & FL_POSIX))
 		return -ENOLCK;
@@ -640,12 +606,14 @@ static int gfs2_lock(struct file *file, int cmd, struct file_lock *fl)
 		cmd = F_SETLK;
 		fl->fl_type = F_UNLCK;
 	}
+	if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+		return -EIO;
 	if (IS_GETLK(cmd))
-		return gfs2_lm_plock_get(sdp, &name, file, fl);
+		return dlm_posix_get(ls->ls_dlm, ip->i_no_addr, file, fl);
 	else if (fl->fl_type == F_UNLCK)
-		return gfs2_lm_punlock(sdp, &name, file, fl);
+		return dlm_posix_unlock(ls->ls_dlm, ip->i_no_addr, file, fl);
 	else
-		return gfs2_lm_plock(sdp, &name, file, cmd, fl);
+		return dlm_posix_lock(ls->ls_dlm, ip->i_no_addr, file, cmd, fl);
 }
 
 static int do_flock(struct file *file, int cmd, struct file_lock *fl)
@@ -732,7 +700,7 @@ static int gfs2_flock(struct file *file, int cmd, struct file_lock *fl)
 	}
 }
 
-const struct file_operations gfs2_file_fops = {
+const struct file_operations *gfs2_file_fops = &(const struct file_operations){
 	.llseek		= gfs2_llseek,
 	.read		= do_sync_read,
 	.aio_read	= generic_file_aio_read,
@@ -750,7 +718,7 @@ const struct file_operations gfs2_file_fops = {
 	.setlease	= gfs2_setlease,
 };
 
-const struct file_operations gfs2_dir_fops = {
+const struct file_operations *gfs2_dir_fops = &(const struct file_operations){
 	.readdir	= gfs2_readdir,
 	.unlocked_ioctl	= gfs2_ioctl,
 	.open		= gfs2_open,
@@ -760,7 +728,9 @@ const struct file_operations gfs2_dir_fops = {
 	.flock		= gfs2_flock,
 };
 
-const struct file_operations gfs2_file_fops_nolock = {
+#endif /* CONFIG_GFS2_FS_LOCKING_DLM */
+
+const struct file_operations *gfs2_file_fops_nolock = &(const struct file_operations){
 	.llseek		= gfs2_llseek,
 	.read		= do_sync_read,
 	.aio_read	= generic_file_aio_read,
@@ -773,10 +743,10 @@ const struct file_operations gfs2_file_fops_nolock = {
 	.fsync		= gfs2_fsync,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= generic_file_splice_write,
-	.setlease	= gfs2_setlease,
+	.setlease	= generic_setlease,
 };
 
-const struct file_operations gfs2_dir_fops_nolock = {
+const struct file_operations *gfs2_dir_fops_nolock = &(const struct file_operations){
 	.readdir	= gfs2_readdir,
 	.unlocked_ioctl	= gfs2_ioctl,
 	.open		= gfs2_open,
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 402b6a2cd2c9..95bb33e41a76 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -17,7 +17,6 @@
 #include <linux/namei.h>
 #include <linux/mount.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -627,13 +626,13 @@ static int map_journal_extents(struct gfs2_sbd *sdp)
 	return rc;
 }
 
-static void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp)
+static void gfs2_others_may_mount(struct gfs2_sbd *sdp)
 {
-	if (!sdp->sd_lockstruct.ls_ops->lm_others_may_mount)
-		return;
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		sdp->sd_lockstruct.ls_ops->lm_others_may_mount(
-					sdp->sd_lockstruct.ls_lockspace);
+	char *message = "FIRSTMOUNT=Done";
+	char *envp[] = { message, NULL };
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	ls->ls_first_done = 1;
+	kobject_uevent_env(&sdp->sd_kobj, KOBJ_CHANGE, envp);
 }
 
 /**
@@ -793,7 +792,7 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
 			}
 		}
 
-		gfs2_lm_others_may_mount(sdp);
+		gfs2_others_may_mount(sdp);
 	} else if (!sdp->sd_args.ar_spectator) {
 		error = gfs2_recover_journal(sdp->sd_jdesc);
 		if (error) {
@@ -1002,7 +1001,6 @@ static int init_threads(struct gfs2_sbd *sdp, int undo)
 		goto fail_quotad;
 
 	sdp->sd_log_flush_time = jiffies;
-	sdp->sd_jindex_refresh_time = jiffies;
 
 	p = kthread_run(gfs2_logd, sdp, "gfs2_logd");
 	error = IS_ERR(p);
@@ -1030,6 +1028,17 @@ fail:
 	return error;
 }
 
+static const match_table_t nolock_tokens = {
+	{ Opt_jid, "jid=%d\n", },
+	{ Opt_err, NULL },
+};
+
+static const struct lm_lockops nolock_ops = {
+	.lm_proto_name = "lock_nolock",
+	.lm_put_lock = kmem_cache_free,
+	.lm_tokens = &nolock_tokens,
+};
+
 /**
  * gfs2_lm_mount - mount a locking protocol
  * @sdp: the filesystem
@@ -1041,31 +1050,73 @@ fail:
 
 static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
 {
-	char *proto = sdp->sd_proto_name;
-	char *table = sdp->sd_table_name;
-	int flags = LM_MFLAG_CONV_NODROP;
-	int error;
+	const struct lm_lockops *lm;
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	struct gfs2_args *args = &sdp->sd_args;
+	const char *proto = sdp->sd_proto_name;
+	const char *table = sdp->sd_table_name;
+	const char *fsname;
+	char *o, *options;
+	int ret;
 
-	if (sdp->sd_args.ar_spectator)
-		flags |= LM_MFLAG_SPECTATOR;
+	if (!strcmp("lock_nolock", proto)) {
+		lm = &nolock_ops;
+		sdp->sd_args.ar_localflocks = 1;
+		sdp->sd_args.ar_localcaching = 1;
+#ifdef CONFIG_GFS2_FS_LOCKING_DLM
+	} else if (!strcmp("lock_dlm", proto)) {
+		lm = &gfs2_dlm_ops;
+#endif
+	} else {
+		printk(KERN_INFO "GFS2: can't find protocol %s\n", proto);
+		return -ENOENT;
+	}
 
 	fs_info(sdp, "Trying to join cluster \"%s\", \"%s\"\n", proto, table);
 
-	error = gfs2_mount_lockproto(proto, table, sdp->sd_args.ar_hostdata,
-				     gfs2_glock_cb, sdp,
-				     GFS2_MIN_LVB_SIZE, flags,
-				     &sdp->sd_lockstruct, &sdp->sd_kobj);
-	if (error) {
-		fs_info(sdp, "can't mount proto=%s, table=%s, hostdata=%s\n",
-			proto, table, sdp->sd_args.ar_hostdata);
-		goto out;
-	}
+	ls->ls_ops = lm;
+	ls->ls_first = 1;
+	ls->ls_id = 0;
 
-	if (gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_ops) ||
-	    gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lvb_size >=
-				  GFS2_MIN_LVB_SIZE)) {
-		gfs2_unmount_lockproto(&sdp->sd_lockstruct);
-		goto out;
+	for (options = args->ar_hostdata; (o = strsep(&options, ":")); ) {
+		substring_t tmp[MAX_OPT_ARGS];
+		int token, option;
+
+		if (!o || !*o)
+			continue;
+
+		token = match_token(o, *lm->lm_tokens, tmp);
+		switch (token) {
+		case Opt_jid:
+			ret = match_int(&tmp[0], &option);
+			if (ret || option < 0) 
+				goto hostdata_error;
+			ls->ls_jid = option;
+			break;
+		case Opt_id:
+			ret = match_int(&tmp[0], &option);
+			if (ret)
+				goto hostdata_error;
+			ls->ls_id = option;
+			break;
+		case Opt_first:
+			ret = match_int(&tmp[0], &option);
+			if (ret || (option != 0 && option != 1))
+				goto hostdata_error;
+			ls->ls_first = option;
+			break;
+		case Opt_nodir:
+			ret = match_int(&tmp[0], &option);
+			if (ret || (option != 0 && option != 1))
+				goto hostdata_error;
+			ls->ls_nodir = option;
+			break;
+		case Opt_err:
+		default:
+hostdata_error:
+			fs_info(sdp, "unknown hostdata (%s)\n", o);
+			return -EINVAL;
+		}
 	}
 
 	if (sdp->sd_args.ar_spectator)
@@ -1074,22 +1125,25 @@ static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
 		snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.%u", table,
 			 sdp->sd_lockstruct.ls_jid);
 
-	fs_info(sdp, "Joined cluster. Now mounting FS...\n");
-
-	if ((sdp->sd_lockstruct.ls_flags & LM_LSFLAG_LOCAL) &&
-	    !sdp->sd_args.ar_ignore_local_fs) {
-		sdp->sd_args.ar_localflocks = 1;
-		sdp->sd_args.ar_localcaching = 1;
+	fsname = strchr(table, ':');
+	if (fsname)
+		fsname++;
+	if (lm->lm_mount == NULL) {
+		fs_info(sdp, "Now mounting FS...\n");
+		return 0;
 	}
-
-out:
-	return error;
+	ret = lm->lm_mount(sdp, fsname);
+	if (ret == 0)
+		fs_info(sdp, "Joined cluster. Now mounting FS...\n");
+	return ret;
 }
 
 void gfs2_lm_unmount(struct gfs2_sbd *sdp)
 {
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		gfs2_unmount_lockproto(&sdp->sd_lockstruct);
+	const struct lm_lockops *lm = sdp->sd_lockstruct.ls_ops;
+	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) &&
+	    lm->lm_unmount)
+		lm->lm_unmount(sdp);
 }
 
 /**
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 49877546beb9..abd5429ae285 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -18,7 +18,6 @@
 #include <linux/posix_acl.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 #include <linux/fiemap.h>
 #include <asm/uaccess.h>
 
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index f0699ac453f7..4ecdad026eaf 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -19,7 +19,6 @@
 #include <linux/delay.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 #include <linux/time.h>
 
 #include "gfs2.h"
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index e8ef0f80fb11..8d53f66b5bcc 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -45,7 +45,6 @@
 #include <linux/fs.h>
 #include <linux/bio.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
 
@@ -108,7 +107,7 @@ int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask)
 		gfs2_assert_warn(sdp, !qd->qd_slot_count);
 		gfs2_assert_warn(sdp, !qd->qd_bh_count);
 
-		gfs2_lvb_unhold(qd->qd_gl);
+		gfs2_glock_put(qd->qd_gl);
 		atomic_dec(&sdp->sd_quota_count);
 
 		/* Delete it from the common reclaim list */
@@ -157,11 +156,6 @@ static int qd_alloc(struct gfs2_sbd *sdp, int user, u32 id,
 	if (error)
 		goto fail;
 
-	error = gfs2_lvb_hold(qd->qd_gl);
-	gfs2_glock_put(qd->qd_gl);
-	if (error)
-		goto fail;
-
 	*qdp = qd;
 
 	return 0;
@@ -211,7 +205,7 @@ static int qd_get(struct gfs2_sbd *sdp, int user, u32 id, int create,
 
 		if (qd || !create) {
 			if (new_qd) {
-				gfs2_lvb_unhold(new_qd->qd_gl);
+				gfs2_glock_put(new_qd->qd_gl);
 				kmem_cache_free(gfs2_quotad_cachep, new_qd);
 			}
 			*qdp = qd;
@@ -1280,7 +1274,7 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 			gfs2_assert_warn(sdp, qd->qd_slot_count == 1);
 		gfs2_assert_warn(sdp, !qd->qd_bh_count);
 
-		gfs2_lvb_unhold(qd->qd_gl);
+		gfs2_glock_put(qd->qd_gl);
 		kmem_cache_free(gfs2_quotad_cachep, qd);
 
 		spin_lock(&qd_lru_lock);
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index efd09c3d2b26..247e8f7d6b3d 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -13,7 +13,6 @@
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/lm_interface.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
 
@@ -427,20 +426,23 @@ static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header_host *hea
 }
 
 
-static void gfs2_lm_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
-				  unsigned int message)
+static void gfs2_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
+                               unsigned int message)
 {
-	if (!sdp->sd_lockstruct.ls_ops->lm_recovery_done)
-		return;
-
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		sdp->sd_lockstruct.ls_ops->lm_recovery_done(
-			sdp->sd_lockstruct.ls_lockspace, jid, message);
+	char env_jid[20];
+	char env_status[20];
+	char *envp[] = { env_jid, env_status, NULL };
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+        ls->ls_recover_jid_done = jid;
+        ls->ls_recover_jid_status = message;
+	sprintf(env_jid, "JID=%d", jid);
+	sprintf(env_status, "RECOVERY=%s",
+		message == LM_RD_SUCCESS ? "Done" : "Failed");
+        kobject_uevent_env(&sdp->sd_kobj, KOBJ_CHANGE, envp);
 }
 
-
 /**
- * gfs2_recover_journal - recovery a given journal
+ * gfs2_recover_journal - recover a given journal
  * @jd: the struct gfs2_jdesc describing the journal
  *
  * Acquire the journal's lock, check to see if the journal is clean, and
@@ -561,7 +563,7 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
 	if (jd->jd_jid != sdp->sd_lockstruct.ls_jid)
 		gfs2_glock_dq_uninit(&ji_gh);
 
-	gfs2_lm_recovery_done(sdp, jd->jd_jid, LM_RD_SUCCESS);
+	gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_SUCCESS);
 
 	if (jd->jd_jid != sdp->sd_lockstruct.ls_jid)
 		gfs2_glock_dq_uninit(&j_gh);
@@ -581,7 +583,7 @@ fail_gunlock_j:
 	fs_info(sdp, "jid=%u: %s\n", jd->jd_jid, (error) ? "Failed" : "Done");
 
 fail:
-	gfs2_lm_recovery_done(sdp, jd->jd_jid, LM_RD_GAVEUP);
+	gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_GAVEUP);
 	return error;
 }
 
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 8b01c635d925..ba5a021b1c57 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -13,7 +13,6 @@
 #include <linux/buffer_head.h>
 #include <linux/fs.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <linux/prefetch.h>
 
 #include "gfs2.h"
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 141b781f2fcc..7cf302b135ce 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -15,7 +15,6 @@
 #include <linux/crc32.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/bio.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index a58a120dac92..a78997ea5037 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -14,9 +14,8 @@
 #include <linux/buffer_head.h>
 #include <linux/module.h>
 #include <linux/kobject.h>
-#include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <asm/uaccess.h>
+#include <linux/gfs2_ondisk.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -224,14 +223,145 @@ static struct lockstruct_attr lockstruct_attr_##name = __ATTR_RO(name)
 
 LOCKSTRUCT_ATTR(jid,      "%u\n");
 LOCKSTRUCT_ATTR(first,    "%u\n");
-LOCKSTRUCT_ATTR(lvb_size, "%u\n");
-LOCKSTRUCT_ATTR(flags,    "%d\n");
 
 static struct attribute *lockstruct_attrs[] = {
 	&lockstruct_attr_jid.attr,
 	&lockstruct_attr_first.attr,
-	&lockstruct_attr_lvb_size.attr,
-	&lockstruct_attr_flags.attr,
+	NULL,
+};
+
+/*
+ * lock_module. Originally from lock_dlm
+ */
+
+static ssize_t proto_name_show(struct gfs2_sbd *sdp, char *buf)
+{
+	const struct lm_lockops *ops = sdp->sd_lockstruct.ls_ops;
+	return sprintf(buf, "%s\n", ops->lm_proto_name);
+}
+
+static ssize_t block_show(struct gfs2_sbd *sdp, char *buf)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	ssize_t ret;
+	int val = 0;
+
+	if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_flags))
+		val = 1;
+	ret = sprintf(buf, "%d\n", val);
+	return ret;
+}
+
+static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	ssize_t ret = len;
+	int val;
+
+	val = simple_strtol(buf, NULL, 0);
+
+	if (val == 1)
+		set_bit(DFL_BLOCK_LOCKS, &ls->ls_flags);
+	else if (val == 0) {
+		clear_bit(DFL_BLOCK_LOCKS, &ls->ls_flags);
+		smp_mb__after_clear_bit();
+		gfs2_glock_thaw(sdp);
+	} else {
+		ret = -EINVAL;
+	}
+	return ret;
+}
+
+static ssize_t lkid_show(struct gfs2_sbd *sdp, char *buf)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	return sprintf(buf, "%u\n", ls->ls_id);
+}
+
+static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	return sprintf(buf, "%d\n", ls->ls_first);
+}
+
+static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	return sprintf(buf, "%d\n", ls->ls_first_done);
+}
+
+static ssize_t recover_show(struct gfs2_sbd *sdp, char *buf)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	return sprintf(buf, "%d\n", ls->ls_recover_jid);
+}
+
+static void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
+{
+	struct gfs2_jdesc *jd;
+
+	spin_lock(&sdp->sd_jindex_spin);
+	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
+		if (jd->jd_jid != jid)
+			continue;
+		jd->jd_dirty = 1;
+		break;
+	}
+	spin_unlock(&sdp->sd_jindex_spin);
+}
+
+static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	ls->ls_recover_jid = simple_strtol(buf, NULL, 0);
+	gfs2_jdesc_make_dirty(sdp, ls->ls_recover_jid);
+	if (sdp->sd_recoverd_process)
+		wake_up_process(sdp->sd_recoverd_process);
+	return len;
+}
+
+static ssize_t recover_done_show(struct gfs2_sbd *sdp, char *buf)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	return sprintf(buf, "%d\n", ls->ls_recover_jid_done);
+}
+
+static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf)
+{
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	return sprintf(buf, "%d\n", ls->ls_recover_jid_status);
+}
+
+struct gdlm_attr {
+	struct attribute attr;
+	ssize_t (*show)(struct gfs2_sbd *sdp, char *);
+	ssize_t (*store)(struct gfs2_sbd *sdp, const char *, size_t);
+};
+
+#define GDLM_ATTR(_name,_mode,_show,_store) \
+static struct gdlm_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store)
+
+GDLM_ATTR(proto_name,     0444, proto_name_show,     NULL);
+GDLM_ATTR(block,          0644, block_show,          block_store);
+GDLM_ATTR(withdraw,       0644, withdraw_show,       withdraw_store);
+GDLM_ATTR(id,             0444, lkid_show,           NULL);
+GDLM_ATTR(first,          0444, lkfirst_show,        NULL);
+GDLM_ATTR(first_done,     0444, first_done_show,     NULL);
+GDLM_ATTR(recover,        0644, recover_show,        recover_store);
+GDLM_ATTR(recover_done,   0444, recover_done_show,   NULL);
+GDLM_ATTR(recover_status, 0444, recover_status_show, NULL);
+
+static struct attribute *lock_module_attrs[] = {
+	&gdlm_attr_proto_name.attr,
+	&gdlm_attr_block.attr,
+	&gdlm_attr_withdraw.attr,
+	&gdlm_attr_id.attr,
+	&lockstruct_attr_jid.attr,
+	&gdlm_attr_first.attr,
+	&gdlm_attr_first_done.attr,
+	&gdlm_attr_recover.attr,
+	&gdlm_attr_recover_done.attr,
+	&gdlm_attr_recover_status.attr,
 	NULL,
 };
 
@@ -412,6 +542,11 @@ static struct attribute_group tune_group = {
 	.attrs = tune_attrs,
 };
 
+static struct attribute_group lock_module_group = {
+	.name = "lock_module",
+	.attrs = lock_module_attrs,
+};
+
 int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
 {
 	int error;
@@ -434,9 +569,15 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
 	if (error)
 		goto fail_args;
 
+	error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group);
+	if (error)
+		goto fail_tune;
+
 	kobject_uevent(&sdp->sd_kobj, KOBJ_ADD);
 	return 0;
 
+fail_tune:
+	sysfs_remove_group(&sdp->sd_kobj, &tune_group);
 fail_args:
 	sysfs_remove_group(&sdp->sd_kobj, &args_group);
 fail_lockstruct:
@@ -453,6 +594,7 @@ void gfs2_sys_fs_del(struct gfs2_sbd *sdp)
 	sysfs_remove_group(&sdp->sd_kobj, &tune_group);
 	sysfs_remove_group(&sdp->sd_kobj, &args_group);
 	sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
+	sysfs_remove_group(&sdp->sd_kobj, &lock_module_group);
 	kobject_put(&sdp->sd_kobj);
 }
 
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index f677b8a83f0c..33cd523ec97e 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -12,9 +12,8 @@
 #include <linux/spinlock.h>
 #include <linux/completion.h>
 #include <linux/buffer_head.h>
-#include <linux/gfs2_ondisk.h>
 #include <linux/kallsyms.h>
-#include <linux/lm_interface.h>
+#include <linux/gfs2_ondisk.h>
 
 #include "gfs2.h"
 #include "incore.h"
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 374f50e95496..9d12b1118ba0 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -13,7 +13,6 @@
 #include <linux/buffer_head.h>
 #include <linux/crc32.h>
 #include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
 #include <asm/uaccess.h>
 
 #include "gfs2.h"
@@ -35,6 +34,8 @@ void gfs2_assert_i(struct gfs2_sbd *sdp)
 
 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
 {
+	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+	const struct lm_lockops *lm = ls->ls_ops;
 	va_list args;
 
 	if (test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
@@ -47,8 +48,12 @@ int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
 	fs_err(sdp, "about to withdraw this file system\n");
 	BUG_ON(sdp->sd_args.ar_debug);
 
-	fs_err(sdp, "telling LM to withdraw\n");
-	gfs2_withdraw_lockproto(&sdp->sd_lockstruct);
+	kobject_uevent(&sdp->sd_kobj, KOBJ_OFFLINE);
+
+	if (lm->lm_unmount) {
+		fs_err(sdp, "telling LM to unmount\n");
+		lm->lm_unmount(sdp);
+	}
 	fs_err(sdp, "withdrawn\n");
 	dump_stack();
 
diff --git a/include/linux/lm_interface.h b/include/linux/lm_interface.h
deleted file mode 100644
index 2ed8fa1b762b..000000000000
--- a/include/linux/lm_interface.h
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef __LM_INTERFACE_DOT_H__
-#define __LM_INTERFACE_DOT_H__
-
-
-typedef void (*lm_callback_t) (void *ptr, unsigned int type, void *data);
-
-/*
- * lm_mount() flags
- *
- * LM_MFLAG_SPECTATOR
- * GFS is asking to join the filesystem's lockspace, but it doesn't want to
- * modify the filesystem.  The lock module shouldn't assign a journal to the FS
- * mount.  It shouldn't send recovery callbacks to the FS mount.  If the node
- * dies or withdraws, all locks can be wiped immediately.
- *
- * LM_MFLAG_CONV_NODROP
- * Do not allow the dlm to internally resolve conversion deadlocks by demoting
- * the lock to unlocked and then reacquiring it in the requested mode. Instead,
- * it should cancel the request and return LM_OUT_CONV_DEADLK.
- */
-
-#define LM_MFLAG_SPECTATOR	0x00000001
-#define LM_MFLAG_CONV_NODROP	0x00000002
-
-/*
- * lm_lockstruct flags
- *
- * LM_LSFLAG_LOCAL
- * The lock_nolock module returns LM_LSFLAG_LOCAL to GFS, indicating that GFS
- * can make single-node optimizations.
- */
-
-#define LM_LSFLAG_LOCAL		0x00000001
-
-/*
- * lm_lockname types
- */
-
-#define LM_TYPE_RESERVED	0x00
-#define LM_TYPE_NONDISK		0x01
-#define LM_TYPE_INODE		0x02
-#define LM_TYPE_RGRP		0x03
-#define LM_TYPE_META		0x04
-#define LM_TYPE_IOPEN		0x05
-#define LM_TYPE_FLOCK		0x06
-#define LM_TYPE_PLOCK		0x07
-#define LM_TYPE_QUOTA		0x08
-#define LM_TYPE_JOURNAL		0x09
-
-/*
- * lm_lock() states
- *
- * SHARED is compatible with SHARED, not with DEFERRED or EX.
- * DEFERRED is compatible with DEFERRED, not with SHARED or EX.
- */
-
-#define LM_ST_UNLOCKED		0
-#define LM_ST_EXCLUSIVE		1
-#define LM_ST_DEFERRED		2
-#define LM_ST_SHARED		3
-
-/*
- * lm_lock() flags
- *
- * LM_FLAG_TRY
- * Don't wait to acquire the lock if it can't be granted immediately.
- *
- * LM_FLAG_TRY_1CB
- * Send one blocking callback if TRY is set and the lock is not granted.
- *
- * LM_FLAG_NOEXP
- * GFS sets this flag on lock requests it makes while doing journal recovery.
- * These special requests should not be blocked due to the recovery like
- * ordinary locks would be.
- *
- * LM_FLAG_ANY
- * A SHARED request may also be granted in DEFERRED, or a DEFERRED request may
- * also be granted in SHARED.  The preferred state is whichever is compatible
- * with other granted locks, or the specified state if no other locks exist.
- *
- * LM_FLAG_PRIORITY
- * Override fairness considerations.  Suppose a lock is held in a shared state
- * and there is a pending request for the deferred state.  A shared lock
- * request with the priority flag would be allowed to bypass the deferred
- * request and directly join the other shared lock.  A shared lock request
- * without the priority flag might be forced to wait until the deferred
- * requested had acquired and released the lock.
- */
-
-#define LM_FLAG_TRY		0x00000001
-#define LM_FLAG_TRY_1CB		0x00000002
-#define LM_FLAG_NOEXP		0x00000004
-#define LM_FLAG_ANY		0x00000008
-#define LM_FLAG_PRIORITY	0x00000010
-
-/*
- * lm_lock() and lm_async_cb return flags
- *
- * LM_OUT_ST_MASK
- * Masks the lower two bits of lock state in the returned value.
- *
- * LM_OUT_CACHEABLE
- * The lock hasn't been released so GFS can continue to cache data for it.
- *
- * LM_OUT_CANCELED
- * The lock request was canceled.
- *
- * LM_OUT_ASYNC
- * The result of the request will be returned in an LM_CB_ASYNC callback.
- *
- * LM_OUT_CONV_DEADLK
- * The lock request was canceled do to a conversion deadlock.
- */
-
-#define LM_OUT_ST_MASK		0x00000003
-#define LM_OUT_CANCELED		0x00000008
-#define LM_OUT_ASYNC		0x00000080
-#define LM_OUT_ERROR		0x00000100
-
-/*
- * lm_callback_t types
- *
- * LM_CB_NEED_E LM_CB_NEED_D LM_CB_NEED_S
- * Blocking callback, a remote node is requesting the given lock in
- * EXCLUSIVE, DEFERRED, or SHARED.
- *
- * LM_CB_NEED_RECOVERY
- * The given journal needs to be recovered.
- *
- * LM_CB_ASYNC
- * The given lock has been granted.
- */
-
-#define LM_CB_NEED_E		257
-#define LM_CB_NEED_D		258
-#define LM_CB_NEED_S		259
-#define LM_CB_NEED_RECOVERY	260
-#define LM_CB_ASYNC		262
-
-/*
- * lm_recovery_done() messages
- */
-
-#define LM_RD_GAVEUP		308
-#define LM_RD_SUCCESS		309
-
-
-struct lm_lockname {
-	u64 ln_number;
-	unsigned int ln_type;
-};
-
-#define lm_name_equal(name1, name2) \
-	(((name1)->ln_number == (name2)->ln_number) && \
-	 ((name1)->ln_type == (name2)->ln_type)) \
-
-struct lm_async_cb {
-	struct lm_lockname lc_name;
-	int lc_ret;
-};
-
-struct lm_lockstruct;
-
-struct lm_lockops {
-	const char *lm_proto_name;
-
-	/*
-	 * Mount/Unmount
-	 */
-
-	int (*lm_mount) (char *table_name, char *host_data,
-			 lm_callback_t cb, void *cb_data,
-			 unsigned int min_lvb_size, int flags,
-			 struct lm_lockstruct *lockstruct,
-			 struct kobject *fskobj);
-
-	void (*lm_others_may_mount) (void *lockspace);
-
-	void (*lm_unmount) (void *lockspace);
-
-	void (*lm_withdraw) (void *lockspace);
-
-	/*
-	 * Lock oriented operations
-	 */
-
-	int (*lm_get_lock) (void *lockspace, struct lm_lockname *name, void **lockp);
-
-	void (*lm_put_lock) (void *lock);
-
-	unsigned int (*lm_lock) (void *lock, unsigned int cur_state,
-				 unsigned int req_state, unsigned int flags);
-
-	unsigned int (*lm_unlock) (void *lock, unsigned int cur_state);
-
-	void (*lm_cancel) (void *lock);
-
-	int (*lm_hold_lvb) (void *lock, char **lvbp);
-	void (*lm_unhold_lvb) (void *lock, char *lvb);
-
-	/*
-	 * Posix Lock oriented operations
-	 */
-
-	int (*lm_plock_get) (void *lockspace, struct lm_lockname *name,
-			     struct file *file, struct file_lock *fl);
-
-	int (*lm_plock) (void *lockspace, struct lm_lockname *name,
-			 struct file *file, int cmd, struct file_lock *fl);
-
-	int (*lm_punlock) (void *lockspace, struct lm_lockname *name,
-			   struct file *file, struct file_lock *fl);
-
-	/*
-	 * Client oriented operations
-	 */
-
-	void (*lm_recovery_done) (void *lockspace, unsigned int jid,
-				  unsigned int message);
-
-	struct module *lm_owner;
-};
-
-/*
- * lm_mount() return values
- *
- * ls_jid - the journal ID this node should use
- * ls_first - this node is the first to mount the file system
- * ls_lvb_size - size in bytes of lock value blocks
- * ls_lockspace - lock module's context for this file system
- * ls_ops - lock module's functions
- * ls_flags - lock module features
- */
-
-struct lm_lockstruct {
-	unsigned int ls_jid;
-	unsigned int ls_first;
-	unsigned int ls_lvb_size;
-	void *ls_lockspace;
-	const struct lm_lockops *ls_ops;
-	int ls_flags;
-};
-
-/*
- * Lock module bottom interface.  A lock module makes itself available to GFS
- * with these functions.
- */
-
-int gfs2_register_lockproto(const struct lm_lockops *proto);
-void gfs2_unregister_lockproto(const struct lm_lockops *proto);
-
-/*
- * Lock module top interface.  GFS calls these functions when mounting or
- * unmounting a file system.
- */
-
-int gfs2_mount_lockproto(char *proto_name, char *table_name, char *host_data,
-			 lm_callback_t cb, void *cb_data,
-			 unsigned int min_lvb_size, int flags,
-			 struct lm_lockstruct *lockstruct,
-			 struct kobject *fskobj);
-
-void gfs2_unmount_lockproto(struct lm_lockstruct *lockstruct);
-
-void gfs2_withdraw_lockproto(struct lm_lockstruct *lockstruct);
-
-#endif /* __LM_INTERFACE_DOT_H__ */
-
-- 
cgit v1.2.3


From 32ca163c9cdb33151d79e95a7cf244f62b5d4418 Mon Sep 17 00:00:00 2001
From: Petros Koutoupis <pkoutoupis@hydrasystemsllc.com>
Date: Tue, 10 Mar 2009 08:25:54 +0100
Subject: block: genhd.h comment needs updating

The include/linux/genhd.h file, on line 338-352 declares some function
prototypes in which the comment on line 338 states that the definition of
these prototypes are to be found at drivers/block/genhd.c. The problem is
that genhd.c has been relocated to block/genhd.c. See attached patch to
correct this minor cosmetic typo.

Signed-off-by: Petros Koutoupis <pkoutoupis@hydrasystemsllc.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 include/linux/genhd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 16948eaecae3..56946b21ab78 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -336,7 +336,7 @@ static inline void part_dec_in_flight(struct hd_struct *part)
 /* drivers/block/ll_rw_blk.c */
 extern void part_round_stats(int cpu, struct hd_struct *part);
 
-/* drivers/block/genhd.c */
+/* block/genhd.c */
 extern int get_blkdev_list(char *, int);
 extern void add_disk(struct gendisk *disk);
 extern void del_gendisk(struct gendisk *gp);
-- 
cgit v1.2.3


From 6d2a78e783416ba99e36beb1d4395b785b34e867 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Tue, 10 Mar 2009 08:27:39 +0100
Subject: block: add private bio_set for bio integrity allocations

The integrity bio allocation needs its own bio_set to avoid violating
the mempool allocation rules and risking deadlocks.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/bio-integrity.c  | 85 ++++++++++++++++-------------------------------------
 fs/bio.c            |  9 ++----
 include/linux/bio.h | 18 +++---------
 3 files changed, 32 insertions(+), 80 deletions(-)

(limited to 'include')

diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index fe2b1aa2464e..31c46a241bac 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -26,23 +26,23 @@
 #include <linux/workqueue.h>
 
 static struct kmem_cache *bio_integrity_slab __read_mostly;
+static mempool_t *bio_integrity_pool;
+static struct bio_set *integrity_bio_set;
 static struct workqueue_struct *kintegrityd_wq;
 
 /**
- * bio_integrity_alloc_bioset - Allocate integrity payload and attach it to bio
+ * bio_integrity_alloc - Allocate integrity payload and attach it to bio
  * @bio:	bio to attach integrity metadata to
  * @gfp_mask:	Memory allocation mask
  * @nr_vecs:	Number of integrity metadata scatter-gather elements
- * @bs:		bio_set to allocate from
  *
  * Description: This function prepares a bio for attaching integrity
  * metadata.  nr_vecs specifies the maximum number of pages containing
  * integrity metadata that can be attached.
  */
-struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio,
-							 gfp_t gfp_mask,
-							 unsigned int nr_vecs,
-							 struct bio_set *bs)
+struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
+						  gfp_t gfp_mask,
+						  unsigned int nr_vecs)
 {
 	struct bio_integrity_payload *bip;
 	struct bio_vec *iv;
@@ -50,7 +50,7 @@ struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio,
 
 	BUG_ON(bio == NULL);
 
-	bip = mempool_alloc(bs->bio_integrity_pool, gfp_mask);
+	bip = mempool_alloc(bio_integrity_pool, gfp_mask);
 	if (unlikely(bip == NULL)) {
 		printk(KERN_ERR "%s: could not alloc bip\n", __func__);
 		return NULL;
@@ -58,10 +58,10 @@ struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio,
 
 	memset(bip, 0, sizeof(*bip));
 
-	iv = bvec_alloc_bs(gfp_mask, nr_vecs, &idx, bs);
+	iv = bvec_alloc_bs(gfp_mask, nr_vecs, &idx, integrity_bio_set);
 	if (unlikely(iv == NULL)) {
 		printk(KERN_ERR "%s: could not alloc bip_vec\n", __func__);
-		mempool_free(bip, bs->bio_integrity_pool);
+		mempool_free(bip, bio_integrity_pool);
 		return NULL;
 	}
 
@@ -72,35 +72,16 @@ struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio,
 
 	return bip;
 }
-EXPORT_SYMBOL(bio_integrity_alloc_bioset);
-
-/**
- * bio_integrity_alloc - Allocate integrity payload and attach it to bio
- * @bio:	bio to attach integrity metadata to
- * @gfp_mask:	Memory allocation mask
- * @nr_vecs:	Number of integrity metadata scatter-gather elements
- *
- * Description: This function prepares a bio for attaching integrity
- * metadata.  nr_vecs specifies the maximum number of pages containing
- * integrity metadata that can be attached.
- */
-struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
-						  gfp_t gfp_mask,
-						  unsigned int nr_vecs)
-{
-	return bio_integrity_alloc_bioset(bio, gfp_mask, nr_vecs, fs_bio_set);
-}
 EXPORT_SYMBOL(bio_integrity_alloc);
 
 /**
  * bio_integrity_free - Free bio integrity payload
  * @bio:	bio containing bip to be freed
- * @bs:		bio_set this bio was allocated from
  *
  * Description: Used to free the integrity portion of a bio. Usually
  * called from bio_free().
  */
-void bio_integrity_free(struct bio *bio, struct bio_set *bs)
+void bio_integrity_free(struct bio *bio)
 {
 	struct bio_integrity_payload *bip = bio->bi_integrity;
 
@@ -111,8 +92,8 @@ void bio_integrity_free(struct bio *bio, struct bio_set *bs)
 	    && bip->bip_buf != NULL)
 		kfree(bip->bip_buf);
 
-	bvec_free_bs(bs, bip->bip_vec, bip->bip_pool);
-	mempool_free(bip, bs->bio_integrity_pool);
+	bvec_free_bs(integrity_bio_set, bip->bip_vec, bip->bip_pool);
+	mempool_free(bip, bio_integrity_pool);
 
 	bio->bi_integrity = NULL;
 }
@@ -686,19 +667,17 @@ EXPORT_SYMBOL(bio_integrity_split);
  * @bio:	New bio
  * @bio_src:	Original bio
  * @gfp_mask:	Memory allocation mask
- * @bs:		bio_set to allocate bip from
  *
  * Description:	Called to allocate a bip when cloning a bio
  */
-int bio_integrity_clone(struct bio *bio, struct bio *bio_src,
-			gfp_t gfp_mask, struct bio_set *bs)
+int bio_integrity_clone(struct bio *bio, struct bio *bio_src, gfp_t gfp_mask)
 {
 	struct bio_integrity_payload *bip_src = bio_src->bi_integrity;
 	struct bio_integrity_payload *bip;
 
 	BUG_ON(bip_src == NULL);
 
-	bip = bio_integrity_alloc_bioset(bio, gfp_mask, bip_src->bip_vcnt, bs);
+	bip = bio_integrity_alloc(bio, gfp_mask, bip_src->bip_vcnt);
 
 	if (bip == NULL)
 		return -EIO;
@@ -714,37 +693,25 @@ int bio_integrity_clone(struct bio *bio, struct bio *bio_src,
 }
 EXPORT_SYMBOL(bio_integrity_clone);
 
-int bioset_integrity_create(struct bio_set *bs, int pool_size)
+static int __init bio_integrity_init(void)
 {
-	bs->bio_integrity_pool = mempool_create_slab_pool(pool_size,
-							  bio_integrity_slab);
-	if (!bs->bio_integrity_pool)
-		return -1;
-
-	return 0;
-}
-EXPORT_SYMBOL(bioset_integrity_create);
+	kintegrityd_wq = create_workqueue("kintegrityd");
 
-void bioset_integrity_free(struct bio_set *bs)
-{
-	if (bs->bio_integrity_pool)
-		mempool_destroy(bs->bio_integrity_pool);
-}
-EXPORT_SYMBOL(bioset_integrity_free);
+	if (!kintegrityd_wq)
+		panic("Failed to create kintegrityd\n");
 
-void __init bio_integrity_init_slab(void)
-{
 	bio_integrity_slab = KMEM_CACHE(bio_integrity_payload,
 					SLAB_HWCACHE_ALIGN|SLAB_PANIC);
-}
 
-static int __init integrity_init(void)
-{
-	kintegrityd_wq = create_workqueue("kintegrityd");
+	bio_integrity_pool = mempool_create_slab_pool(BIO_POOL_SIZE,
+						      bio_integrity_slab);
+	if (!bio_integrity_pool)
+		panic("bio_integrity: can't allocate bip pool\n");
 
-	if (!kintegrityd_wq)
-		panic("Failed to create kintegrityd\n");
+	integrity_bio_set = bioset_create(BIO_POOL_SIZE, 0);
+	if (!integrity_bio_set)
+		panic("bio_integrity: can't allocate bio_set\n");
 
 	return 0;
 }
-subsys_initcall(integrity_init);
+subsys_initcall(bio_integrity_init);
diff --git a/fs/bio.c b/fs/bio.c
index 9cc1430b4495..a040cde7f6fd 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -248,7 +248,7 @@ void bio_free(struct bio *bio, struct bio_set *bs)
 		bvec_free_bs(bs, bio->bi_io_vec, BIO_POOL_IDX(bio));
 
 	if (bio_integrity(bio))
-		bio_integrity_free(bio, bs);
+		bio_integrity_free(bio);
 
 	/*
 	 * If we have front padding, adjust the bio pointer before freeing
@@ -466,7 +466,7 @@ struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask)
 	if (bio_integrity(bio)) {
 		int ret;
 
-		ret = bio_integrity_clone(b, bio, gfp_mask, fs_bio_set);
+		ret = bio_integrity_clone(b, bio, gfp_mask);
 
 		if (ret < 0) {
 			bio_put(b);
@@ -1529,7 +1529,6 @@ void bioset_free(struct bio_set *bs)
 	if (bs->bio_pool)
 		mempool_destroy(bs->bio_pool);
 
-	bioset_integrity_free(bs);
 	biovec_free_pools(bs);
 	bio_put_slab(bs);
 
@@ -1570,9 +1569,6 @@ struct bio_set *bioset_create(unsigned int pool_size, unsigned int front_pad)
 	if (!bs->bio_pool)
 		goto bad;
 
-	if (bioset_integrity_create(bs, pool_size))
-		goto bad;
-
 	if (!biovec_create_pools(bs, pool_size))
 		return bs;
 
@@ -1610,7 +1606,6 @@ static int __init init_bio(void)
 	if (!bio_slabs)
 		panic("bio: can't allocate bios\n");
 
-	bio_integrity_init_slab();
 	biovec_init_slabs();
 
 	fs_bio_set = bioset_create(BIO_POOL_SIZE, 0);
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d8bd43bfdcf5..b05b1d4d17d2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -426,9 +426,6 @@ struct bio_set {
 	unsigned int front_pad;
 
 	mempool_t *bio_pool;
-#if defined(CONFIG_BLK_DEV_INTEGRITY)
-	mempool_t *bio_integrity_pool;
-#endif
 	mempool_t *bvec_pool;
 };
 
@@ -519,9 +516,8 @@ static inline int bio_has_data(struct bio *bio)
 
 #define bio_integrity(bio) (bio->bi_integrity != NULL)
 
-extern struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *, gfp_t, unsigned int, struct bio_set *);
 extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int);
-extern void bio_integrity_free(struct bio *, struct bio_set *);
+extern void bio_integrity_free(struct bio *);
 extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
 extern int bio_integrity_enabled(struct bio *bio);
 extern int bio_integrity_set_tag(struct bio *, void *, unsigned int);
@@ -531,27 +527,21 @@ extern void bio_integrity_endio(struct bio *, int);
 extern void bio_integrity_advance(struct bio *, unsigned int);
 extern void bio_integrity_trim(struct bio *, unsigned int, unsigned int);
 extern void bio_integrity_split(struct bio *, struct bio_pair *, int);
-extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t, struct bio_set *);
-extern int bioset_integrity_create(struct bio_set *, int);
-extern void bioset_integrity_free(struct bio_set *);
-extern void bio_integrity_init_slab(void);
+extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t);
 
 #else /* CONFIG_BLK_DEV_INTEGRITY */
 
 #define bio_integrity(a)		(0)
-#define bioset_integrity_create(a, b)	(0)
 #define bio_integrity_prep(a)		(0)
 #define bio_integrity_enabled(a)	(0)
-#define bio_integrity_clone(a, b, c,d )	(0)
-#define bioset_integrity_free(a)	do { } while (0)
-#define bio_integrity_free(a, b)	do { } while (0)
+#define bio_integrity_clone(a, b, c)	(0)
+#define bio_integrity_free(a)		do { } while (0)
 #define bio_integrity_endio(a, b)	do { } while (0)
 #define bio_integrity_advance(a, b)	do { } while (0)
 #define bio_integrity_trim(a, b, c)	do { } while (0)
 #define bio_integrity_split(a, b, c)	do { } while (0)
 #define bio_integrity_set_tag(a, b, c)	do { } while (0)
 #define bio_integrity_get_tag(a, b, c)	do { } while (0)
-#define bio_integrity_init_slab(a)	do { } while (0)
 
 #endif /* CONFIG_BLK_DEV_INTEGRITY */
 
-- 
cgit v1.2.3


From d399228646e26db315d6233bed65ec9d08c57f57 Mon Sep 17 00:00:00 2001
From: Petros Koutoupis <pkoutoupis@hydrasystemsllc.com>
Date: Wed, 11 Mar 2009 10:49:35 +0100
Subject: block: genhd.h cleanup patch

In include/linux/genhd.h: Line 335 has a comment that needs to be updated from: /* drivers/block/ll_rw_blk.c */ to /* block/blk-core.c */. Also as of kernel 2.6.16, the function definition for get_blkdev_list was removed from block/genhd.c but the function declaration is still present on line 339. This patch addresses both those fixes, by updating the comment and removing the declaration.

Signed-off-by: Petros Koutoupis <pkoutoupis@hydrasystemsllc.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 include/linux/genhd.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 56946b21ab78..634c53028fb8 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -333,11 +333,10 @@ static inline void part_dec_in_flight(struct hd_struct *part)
 		part_to_disk(part)->part0.in_flight--;
 }
 
-/* drivers/block/ll_rw_blk.c */
+/* block/blk-core.c */
 extern void part_round_stats(int cpu, struct hd_struct *part);
 
 /* block/genhd.c */
-extern int get_blkdev_list(char *, int);
 extern void add_disk(struct gendisk *disk);
 extern void del_gendisk(struct gendisk *gp);
 extern void unlink_gendisk(struct gendisk *gp);
-- 
cgit v1.2.3


From 05378940caf979a8655c18b18a17213dcfa52412 Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <bharrosh@panasas.com>
Date: Tue, 24 Mar 2009 12:23:40 +0100
Subject: bsg: add support for tail queuing

Currently inherited from sg.c bsg will submit asynchronous request
 at the head-of-the-queue, (using "at_head" set in the call to
 blk_execute_rq_nowait()). This is bad in situation where the queues
 are full, requests will execute out of order, and can cause
 starvation of the first submitted requests.

The sg_io_v4->flags member is used and a bit is allocated to denote the
Q_AT_TAIL. Zero is to queue at_head as before, to be compatible with old
code at the write/read path. SG_IO code path behavior was changed so to
be the same as write/read behavior. SG_IO was very rarely used and breaking
compatibility with it is OK at this stage.

sg_io_hdr at sg.h also has a flags member and uses 3 bits from the first
nibble and one bit from the last nibble. Even though none of these bits
are supported by bsg, The second nibble is allocated for use by bsg. Just
in case.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
CC: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 block/bsg.c         | 9 +++++++--
 include/linux/bsg.h | 8 ++++++++
 2 files changed, 15 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/block/bsg.c b/block/bsg.c
index 0ce8806dd0c1..0f63b91d0af6 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -353,6 +353,8 @@ static void bsg_rq_end_io(struct request *rq, int uptodate)
 static void bsg_add_command(struct bsg_device *bd, struct request_queue *q,
 			    struct bsg_command *bc, struct request *rq)
 {
+	int at_head = (0 == (bc->hdr.flags & BSG_FLAG_Q_AT_TAIL));
+
 	/*
 	 * add bc command to busy queue and submit rq for io
 	 */
@@ -368,7 +370,7 @@ static void bsg_add_command(struct bsg_device *bd, struct request_queue *q,
 	dprintk("%s: queueing rq %p, bc %p\n", bd->name, rq, bc);
 
 	rq->end_io_data = bc;
-	blk_execute_rq_nowait(q, NULL, rq, 1, bsg_rq_end_io);
+	blk_execute_rq_nowait(q, NULL, rq, at_head, bsg_rq_end_io);
 }
 
 static struct bsg_command *bsg_next_done_cmd(struct bsg_device *bd)
@@ -924,6 +926,7 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		struct request *rq;
 		struct bio *bio, *bidi_bio = NULL;
 		struct sg_io_v4 hdr;
+		int at_head;
 		u8 sense[SCSI_SENSE_BUFFERSIZE];
 
 		if (copy_from_user(&hdr, uarg, sizeof(hdr)))
@@ -936,7 +939,9 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		bio = rq->bio;
 		if (rq->next_rq)
 			bidi_bio = rq->next_rq->bio;
-		blk_execute_rq(bd->queue, NULL, rq, 0);
+
+		at_head = (0 == (hdr.flags & BSG_FLAG_Q_AT_TAIL));
+		blk_execute_rq(bd->queue, NULL, rq, at_head);
 		ret = blk_complete_sgv4_hdr_rq(rq, &hdr, bio, bidi_bio);
 
 		if (copy_to_user(uarg, &hdr, sizeof(hdr)))
diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index cf0303a60611..3f0c64ace424 100644
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -7,6 +7,14 @@
 #define BSG_SUB_PROTOCOL_SCSI_TMF	1
 #define BSG_SUB_PROTOCOL_SCSI_TRANSPORT	2
 
+/*
+ * For flags member below
+ * sg.h sg_io_hdr also has bits defined for it's flags member. However
+ * none of these bits are implemented/used by bsg. The bits below are
+ * allocated to not conflict with sg.h ones anyway.
+ */
+#define BSG_FLAG_Q_AT_TAIL 0x10 /* default, == 0 at this bit, is Q_AT_HEAD */
+
 struct sg_io_v4 {
 	__s32 guard;		/* [i] 'Q' to differentiate from v3 */
 	__u32 protocol;		/* [i] 0 -> SCSI , .... */
-- 
cgit v1.2.3


From bf8e3355ec8f4e472f9841e94203cd759b45226e Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Fri, 5 Dec 2008 22:43:41 +0100
Subject: firewire: cdev: documentation fixlet

Reported-by: Jay Fenlason <fenlason@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 include/linux/firewire-cdev.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 4d078e99c017..899ef279f5be 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -229,7 +229,7 @@ struct fw_cdev_get_info {
  * Send a request to the device.  This ioctl implements all outgoing requests.
  * Both quadlet and block request specify the payload as a pointer to the data
  * in the @data field.  Once the transaction completes, the kernel writes an
- * &fw_cdev_event_request event back.  The @closure field is passed back to
+ * &fw_cdev_event_response event back.  The @closure field is passed back to
  * user space in the response event.
  */
 struct fw_cdev_send_request {
-- 
cgit v1.2.3


From 632321ecd99bf85c982a75f8329b4ecbb95b3a8f Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Fri, 2 Jan 2009 12:47:13 +0100
Subject: firewire: cdev: fix documentation of FW_CDEV_IOC_GET_INFO

The FW_CDEV_IOC_GET_INFO ioctl looks at client->device->config_rom, not
at the local node's config ROM.

We could fix the implementation or the documentation.  I believe the way
how it is currently implemented is more useful than the way how it is
currently documented.  In fact, libdc1394 uses the ABI already as
implemented, not as documented.  Hence let's change the documentation.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 include/linux/firewire-cdev.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 899ef279f5be..86c8ff5326f9 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -201,7 +201,7 @@ union fw_cdev_event {
  *		case, @rom_length is updated with the actual length of the
  *		configuration ROM.
  * @rom:	If non-zero, address of a buffer to be filled by a copy of the
- *		local node's configuration ROM
+ *		device's configuration ROM
  * @bus_reset:	If non-zero, address of a buffer to be filled by a
  *		&struct fw_cdev_event_bus_reset with the current state
  *		of the bus.  This does not cause a bus reset to happen.
-- 
cgit v1.2.3


From b1bda4cdc2037447bd66753bf5ccab66d91b0b59 Mon Sep 17 00:00:00 2001
From: "Jay Fenlason, Stefan Richter" <stefanr@s5r6.in-berlin.de>
Date: Sun, 4 Jan 2009 16:23:29 +0100
Subject: firewire: cdev: add ioctls for isochronous resource management

Based on
    Date: Tue, 18 Nov 2008 11:41:27 -0500
    From: Jay Fenlason <fenlason@redhat.com>
    Subject: [Patch V4] Add ISO resource management support
with several changes to the ABI and implementation.  Only the part of
the ABI which enables auto-reallocation and auto-deallocation is
included here.

This implements ioctls for kernel-assisted allocation of isochronous
channels and isochronous bandwidth.  The benefits are:
  - The client does not have to have write access to the /dev/fw* device
    corresponding to the IRM.
  - The client does not have to perform reallocation after bus resets.
  - Channel and bandwidth are deallocated by the kernel if the file is
    closed before the client deallocated the resources.  Thus resources
    are released even if the client crashes.

It is anticipated that future in-kernel code (firewire-core IRM code;
the firewire port of firedtv), will use the fw-iso.c portions of this
code too.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Tested-by: David Moore <dcm@acm.org>
---
 drivers/firewire/fw-cdev.c        | 215 +++++++++++++++++++++++++++++++++++++-
 drivers/firewire/fw-iso.c         | 176 +++++++++++++++++++++++++++++--
 drivers/firewire/fw-transaction.h |   4 +
 include/linux/firewire-cdev.h     | 100 +++++++++++++++---
 4 files changed, 475 insertions(+), 20 deletions(-)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 4c33b51b735a..a227853aa1e2 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -24,6 +24,7 @@
 #include <linux/errno.h>
 #include <linux/firewire-cdev.h>
 #include <linux/idr.h>
+#include <linux/jiffies.h>
 #include <linux/kernel.h>
 #include <linux/kref.h>
 #include <linux/mm.h>
@@ -35,6 +36,7 @@
 #include <linux/time.h>
 #include <linux/vmalloc.h>
 #include <linux/wait.h>
+#include <linux/workqueue.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -114,6 +116,21 @@ struct descriptor_resource {
 	u32 data[0];
 };
 
+struct iso_resource {
+	struct client_resource resource;
+	struct client *client;
+	/* Schedule work and access todo only with client->lock held. */
+	struct delayed_work work;
+	enum {ISO_RES_ALLOC, ISO_RES_REALLOC, ISO_RES_DEALLOC,} todo;
+	int generation;
+	u64 channels;
+	s32 bandwidth;
+	struct iso_resource_event *e_alloc, *e_dealloc;
+};
+
+static void schedule_iso_resource(struct iso_resource *);
+static void release_iso_resource(struct client *, struct client_resource *);
+
 /*
  * dequeue_event() just kfree()'s the event, so the event has to be
  * the first field in a struct XYZ_event.
@@ -145,6 +162,11 @@ struct iso_interrupt_event {
 	struct fw_cdev_event_iso_interrupt interrupt;
 };
 
+struct iso_resource_event {
+	struct event event;
+	struct fw_cdev_event_iso_resource resource;
+};
+
 static inline void __user *u64_to_uptr(__u64 value)
 {
 	return (void __user *)(unsigned long)value;
@@ -290,6 +312,16 @@ static void for_each_client(struct fw_device *device,
 	mutex_unlock(&device->client_list_mutex);
 }
 
+static int schedule_reallocations(int id, void *p, void *data)
+{
+	struct client_resource *r = p;
+
+	if (r->release == release_iso_resource)
+		schedule_iso_resource(container_of(r,
+					struct iso_resource, resource));
+	return 0;
+}
+
 static void queue_bus_reset_event(struct client *client)
 {
 	struct bus_reset_event *e;
@@ -304,6 +336,10 @@ static void queue_bus_reset_event(struct client *client)
 
 	queue_event(client, &e->event,
 		    &e->reset, sizeof(e->reset), NULL, 0);
+
+	spin_lock_irq(&client->lock);
+	idr_for_each(&client->resource_idr, schedule_reallocations, client);
+	spin_unlock_irq(&client->lock);
 }
 
 void fw_device_cdev_update(struct fw_device *device)
@@ -376,8 +412,12 @@ static int add_client_resource(struct client *client,
 	else
 		ret = idr_get_new(&client->resource_idr, resource,
 				  &resource->handle);
-	if (ret >= 0)
+	if (ret >= 0) {
 		client_get(client);
+		if (resource->release == release_iso_resource)
+			schedule_iso_resource(container_of(resource,
+						struct iso_resource, resource));
+	}
 	spin_unlock_irqrestore(&client->lock, flags);
 
 	if (ret == -EAGAIN)
@@ -970,6 +1010,177 @@ static int ioctl_get_cycle_timer(struct client *client, void *buffer)
 	return 0;
 }
 
+static void iso_resource_work(struct work_struct *work)
+{
+	struct iso_resource_event *e;
+	struct iso_resource *r =
+			container_of(work, struct iso_resource, work.work);
+	struct client *client = r->client;
+	int generation, channel, bandwidth, todo;
+	bool skip, free, success;
+
+	spin_lock_irq(&client->lock);
+	generation = client->device->generation;
+	todo = r->todo;
+	/* Allow 1000ms grace period for other reallocations. */
+	if (todo == ISO_RES_ALLOC &&
+	    time_is_after_jiffies(client->device->card->reset_jiffies + HZ)) {
+		if (schedule_delayed_work(&r->work, DIV_ROUND_UP(HZ, 3)))
+			client_get(client);
+		skip = true;
+	} else {
+		/* We could be called twice within the same generation. */
+		skip = todo == ISO_RES_REALLOC &&
+		       r->generation == generation;
+	}
+	free = todo == ISO_RES_DEALLOC;
+	r->generation = generation;
+	spin_unlock_irq(&client->lock);
+
+	if (skip)
+		goto out;
+
+	bandwidth = r->bandwidth;
+
+	fw_iso_resource_manage(client->device->card, generation,
+			r->channels, &channel, &bandwidth,
+			todo == ISO_RES_ALLOC || todo == ISO_RES_REALLOC);
+	/*
+	 * Is this generation outdated already?  As long as this resource sticks
+	 * in the idr, it will be scheduled again for a newer generation or at
+	 * shutdown.
+	 */
+	if (channel == -EAGAIN &&
+	    (todo == ISO_RES_ALLOC || todo == ISO_RES_REALLOC))
+		goto out;
+
+	success = channel >= 0 || bandwidth > 0;
+
+	spin_lock_irq(&client->lock);
+	/*
+	 * Transit from allocation to reallocation, except if the client
+	 * requested deallocation in the meantime.
+	 */
+	if (r->todo == ISO_RES_ALLOC)
+		r->todo = ISO_RES_REALLOC;
+	/*
+	 * Allocation or reallocation failure?  Pull this resource out of the
+	 * idr and prepare for deletion, unless the client is shutting down.
+	 */
+	if (r->todo == ISO_RES_REALLOC && !success &&
+	    !client->in_shutdown &&
+	    idr_find(&client->resource_idr, r->resource.handle)) {
+		idr_remove(&client->resource_idr, r->resource.handle);
+		client_put(client);
+		free = true;
+	}
+	spin_unlock_irq(&client->lock);
+
+	if (todo == ISO_RES_ALLOC && channel >= 0)
+		r->channels = 1ULL << (63 - channel);
+
+	if (todo == ISO_RES_REALLOC && success)
+		goto out;
+
+	if (todo == ISO_RES_ALLOC) {
+		e = r->e_alloc;
+		r->e_alloc = NULL;
+	} else {
+		e = r->e_dealloc;
+		r->e_dealloc = NULL;
+	}
+	e->resource.handle	= r->resource.handle;
+	e->resource.channel	= channel;
+	e->resource.bandwidth	= bandwidth;
+
+	queue_event(client, &e->event,
+		    &e->resource, sizeof(e->resource), NULL, 0);
+
+	if (free) {
+		cancel_delayed_work(&r->work);
+		kfree(r->e_alloc);
+		kfree(r->e_dealloc);
+		kfree(r);
+	}
+ out:
+	client_put(client);
+}
+
+static void schedule_iso_resource(struct iso_resource *r)
+{
+	if (schedule_delayed_work(&r->work, 0))
+		client_get(r->client);
+}
+
+static void release_iso_resource(struct client *client,
+				 struct client_resource *resource)
+{
+	struct iso_resource *r =
+		container_of(resource, struct iso_resource, resource);
+
+	spin_lock_irq(&client->lock);
+	r->todo = ISO_RES_DEALLOC;
+	schedule_iso_resource(r);
+	spin_unlock_irq(&client->lock);
+}
+
+static int ioctl_allocate_iso_resource(struct client *client, void *buffer)
+{
+	struct fw_cdev_allocate_iso_resource *request = buffer;
+	struct iso_resource_event *e1, *e2;
+	struct iso_resource *r;
+	int ret;
+
+	if ((request->channels == 0 && request->bandwidth == 0) ||
+	    request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL ||
+	    request->bandwidth < 0)
+		return -EINVAL;
+
+	r  = kmalloc(sizeof(*r), GFP_KERNEL);
+	e1 = kmalloc(sizeof(*e1), GFP_KERNEL);
+	e2 = kmalloc(sizeof(*e2), GFP_KERNEL);
+	if (r == NULL || e1 == NULL || e2 == NULL) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	INIT_DELAYED_WORK(&r->work, iso_resource_work);
+	r->client	= client;
+	r->todo		= ISO_RES_ALLOC;
+	r->generation	= -1;
+	r->channels	= request->channels;
+	r->bandwidth	= request->bandwidth;
+	r->e_alloc	= e1;
+	r->e_dealloc	= e2;
+
+	e1->resource.closure	= request->closure;
+	e1->resource.type	= FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED;
+	e2->resource.closure	= request->closure;
+	e2->resource.type	= FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED;
+
+	r->resource.release = release_iso_resource;
+	ret = add_client_resource(client, &r->resource, GFP_KERNEL);
+	if (ret < 0)
+		goto fail;
+	request->handle = r->resource.handle;
+
+	return 0;
+ fail:
+	kfree(r);
+	kfree(e1);
+	kfree(e2);
+
+	return ret;
+}
+
+static int ioctl_deallocate_iso_resource(struct client *client, void *buffer)
+{
+	struct fw_cdev_deallocate *request = buffer;
+
+	return release_client_resource(client, request->handle,
+				       release_iso_resource, NULL);
+}
+
 static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_get_info,
 	ioctl_send_request,
@@ -984,6 +1195,8 @@ static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_start_iso,
 	ioctl_stop_iso,
 	ioctl_get_cycle_timer,
+	ioctl_allocate_iso_resource,
+	ioctl_deallocate_iso_resource,
 };
 
 static int dispatch_ioctl(struct client *client,
diff --git a/drivers/firewire/fw-iso.c b/drivers/firewire/fw-iso.c
index 39f3bacee404..a7b57b253b06 100644
--- a/drivers/firewire/fw-iso.c
+++ b/drivers/firewire/fw-iso.c
@@ -1,5 +1,7 @@
 /*
- * Isochronous IO functionality
+ * Isochronous I/O functionality:
+ *   - Isochronous DMA context management
+ *   - Isochronous bus resource management (channels, bandwidth), client side
  *
  * Copyright (C) 2006 Kristian Hoegsberg <krh@bitplanet.net>
  *
@@ -18,15 +20,20 @@
  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-#include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/dma-mapping.h>
-#include <linux/vmalloc.h>
+#include <linux/errno.h>
+#include <linux/firewire-constants.h>
+#include <linux/kernel.h>
 #include <linux/mm.h>
+#include <linux/spinlock.h>
+#include <linux/vmalloc.h>
 
-#include "fw-transaction.h"
 #include "fw-topology.h"
-#include "fw-device.h"
+#include "fw-transaction.h"
+
+/*
+ * Isochronous DMA context management
+ */
 
 int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card,
 		       int page_count, enum dma_data_direction direction)
@@ -153,3 +160,160 @@ int fw_iso_context_stop(struct fw_iso_context *ctx)
 {
 	return ctx->card->driver->stop_iso(ctx);
 }
+
+/*
+ * Isochronous bus resource management (channels, bandwidth), client side
+ */
+
+static int manage_bandwidth(struct fw_card *card, int irm_id, int generation,
+			    int bandwidth, bool allocate)
+{
+	__be32 data[2];
+	int try, new, old = allocate ? BANDWIDTH_AVAILABLE_INITIAL : 0;
+
+	/*
+	 * On a 1394a IRM with low contention, try < 1 is enough.
+	 * On a 1394-1995 IRM, we need at least try < 2.
+	 * Let's just do try < 5.
+	 */
+	for (try = 0; try < 5; try++) {
+		new = allocate ? old - bandwidth : old + bandwidth;
+		if (new < 0 || new > BANDWIDTH_AVAILABLE_INITIAL)
+			break;
+
+		data[0] = cpu_to_be32(old);
+		data[1] = cpu_to_be32(new);
+		switch (fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP,
+				irm_id, generation, SCODE_100,
+				CSR_REGISTER_BASE + CSR_BANDWIDTH_AVAILABLE,
+				data, sizeof(data))) {
+		case RCODE_GENERATION:
+			/* A generation change frees all bandwidth. */
+			return allocate ? -EAGAIN : bandwidth;
+
+		case RCODE_COMPLETE:
+			if (be32_to_cpup(data) == old)
+				return bandwidth;
+
+			old = be32_to_cpup(data);
+			/* Fall through. */
+		}
+	}
+
+	return -EIO;
+}
+
+static int manage_channel(struct fw_card *card, int irm_id, int generation,
+			  __be32 channels_mask, u64 offset, bool allocate)
+{
+	__be32 data[2], c, old = allocate ? cpu_to_be32(~0) : 0;
+	int i, retry = 5;
+
+	for (i = 0; i < 32; i++) {
+		c = cpu_to_be32(1 << (31 - i));
+		if (!(channels_mask & c))
+			continue;
+
+		if (allocate == !(old & c))
+			continue;
+
+		data[0] = old;
+		data[1] = old ^ c;
+		switch (fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP,
+					   irm_id, generation, SCODE_100,
+					   offset, data, sizeof(data))) {
+		case RCODE_GENERATION:
+			/* A generation change frees all channels. */
+			return allocate ? -EAGAIN : i;
+
+		case RCODE_COMPLETE:
+			if (data[0] == old)
+				return i;
+
+			old = data[0];
+
+			/* Is the IRM 1394a-2000 compliant? */
+			if ((data[0] & c) != (data[1] & c))
+				continue;
+
+			/* 1394-1995 IRM, fall through to retry. */
+		default:
+			if (retry--)
+				i--;
+		}
+	}
+
+	return -EIO;
+}
+
+static void deallocate_channel(struct fw_card *card, int irm_id,
+			       int generation, int channel)
+{
+	__be32 mask;
+	u64 offset;
+
+	mask = channel < 32 ? cpu_to_be32(1 << (31 - channel)) :
+			      cpu_to_be32(1 << (63 - channel));
+	offset = channel < 32 ? CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI :
+				CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO;
+
+	manage_channel(card, irm_id, generation, mask, offset, false);
+}
+
+/**
+ * fw_iso_resource_manage - Allocate or deallocate a channel and/or bandwidth
+ *
+ * In parameters: card, generation, channels_mask, bandwidth, allocate
+ * Out parameters: channel, bandwidth
+ * This function blocks (sleeps) during communication with the IRM.
+ * Allocates or deallocates at most one channel out of channels_mask.
+ *
+ * Returns channel < 0 if no channel was allocated or deallocated.
+ * Returns bandwidth = 0 if no bandwidth was allocated or deallocated.
+ *
+ * If generation is stale, deallocations succeed but allocations fail with
+ * channel = -EAGAIN.
+ *
+ * If channel (de)allocation fails, bandwidth (de)allocation fails too.
+ * If bandwidth allocation fails, no channel will be allocated either.
+ * If bandwidth deallocation fails, channel deallocation may still have been
+ * successful.
+ */
+void fw_iso_resource_manage(struct fw_card *card, int generation,
+			    u64 channels_mask, int *channel, int *bandwidth,
+			    bool allocate)
+{
+	__be32 channels_hi = cpu_to_be32(channels_mask >> 32);
+	__be32 channels_lo = cpu_to_be32(channels_mask);
+	int irm_id, ret, c = -EINVAL;
+
+	spin_lock_irq(&card->lock);
+	irm_id = card->irm_node->node_id;
+	spin_unlock_irq(&card->lock);
+
+	if (channels_hi)
+		c = manage_channel(card, irm_id, generation, channels_hi,
+		    CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI, allocate);
+	if (channels_lo && c < 0) {
+		c = manage_channel(card, irm_id, generation, channels_lo,
+		    CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO, allocate);
+		if (c >= 0)
+			c += 32;
+	}
+	*channel = c;
+
+	if (channels_mask != 0 && c < 0)
+		*bandwidth = 0;
+
+	if (*bandwidth == 0)
+		return;
+
+	ret = manage_bandwidth(card, irm_id, generation, *bandwidth, allocate);
+	if (ret < 0)
+		*bandwidth = 0;
+
+	if (ret < 0 && c >= 0 && allocate) {
+		deallocate_channel(card, irm_id, generation, c);
+		*channel = ret;
+	}
+}
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
index 48e88d53998b..212a10293828 100644
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -82,6 +82,7 @@
 #define CSR_SPEED_MAP			0x2000
 #define CSR_SPEED_MAP_END		0x3000
 
+#define BANDWIDTH_AVAILABLE_INITIAL	4915
 #define BROADCAST_CHANNEL_INITIAL	(1 << 31 | 31)
 #define BROADCAST_CHANNEL_VALID		(1 << 30)
 
@@ -343,6 +344,9 @@ int fw_iso_context_start(struct fw_iso_context *ctx,
 int fw_iso_context_stop(struct fw_iso_context *ctx);
 void fw_iso_context_destroy(struct fw_iso_context *ctx);
 
+void fw_iso_resource_manage(struct fw_card *card, int generation,
+		u64 channels_mask, int *channel, int *bandwidth, bool allocate);
+
 struct fw_card_driver {
 	/*
 	 * Enable the given card with the given initial config rom.
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 86c8ff5326f9..25b96dd0574f 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -25,10 +25,12 @@
 #include <linux/types.h>
 #include <linux/firewire-constants.h>
 
-#define FW_CDEV_EVENT_BUS_RESET		0x00
-#define FW_CDEV_EVENT_RESPONSE		0x01
-#define FW_CDEV_EVENT_REQUEST		0x02
-#define FW_CDEV_EVENT_ISO_INTERRUPT	0x03
+#define FW_CDEV_EVENT_BUS_RESET			0x00
+#define FW_CDEV_EVENT_RESPONSE			0x01
+#define FW_CDEV_EVENT_REQUEST			0x02
+#define FW_CDEV_EVENT_ISO_INTERRUPT		0x03
+#define FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED	0x04
+#define FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED	0x05
 
 /**
  * struct fw_cdev_event_common - Common part of all fw_cdev_event_ types
@@ -146,6 +148,37 @@ struct fw_cdev_event_iso_interrupt {
 	__u32 header[0];
 };
 
+/**
+ * struct fw_cdev_event_iso_resource - Iso resources were allocated or freed
+ * @closure:	See &fw_cdev_event_common;
+ *		set by %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE ioctl
+ * @type:	%FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED or
+ *		%FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED
+ * @handle:	Reference by which an allocated resource can be deallocated
+ * @channel:	Isochronous channel which was (de)allocated, if any
+ * @bandwidth:	Bandwidth allocation units which were (de)allocated, if any
+ * @channels_available:  Last known availability of channels
+ * @bandwidth_available: Last known availability of bandwidth
+ *
+ * An %FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED event is sent after an isochronous
+ * resource was allocated at the IRM.  The client has to check @channel and
+ * @bandwidth for whether the allocation actually succeeded.
+ *
+ * @channel is <0 if no channel was allocated.
+ * @bandwidth is 0 if no bandwidth was allocated.
+ *
+ * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event is sent after an isochronous
+ * resource was deallocated at the IRM.  It is also sent when automatic
+ * reallocation after a bus reset failed.
+ */
+struct fw_cdev_event_iso_resource {
+	__u64 closure;
+	__u32 type;
+	__u32 handle;
+	__s32 channel;
+	__s32 bandwidth;
+};
+
 /**
  * union fw_cdev_event - Convenience union of fw_cdev_event_ types
  * @common:        Valid for all types
@@ -153,6 +186,9 @@ struct fw_cdev_event_iso_interrupt {
  * @response:      Valid if @common.type == %FW_CDEV_EVENT_RESPONSE
  * @request:       Valid if @common.type == %FW_CDEV_EVENT_REQUEST
  * @iso_interrupt: Valid if @common.type == %FW_CDEV_EVENT_ISO_INTERRUPT
+ * @iso_resource:  Valid if @common.type ==
+ *				%FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED or
+ *				%FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED
  *
  * Convenience union for userspace use.  Events could be read(2) into an
  * appropriately aligned char buffer and then cast to this union for further
@@ -163,13 +199,15 @@ struct fw_cdev_event_iso_interrupt {
  * not fit will be discarded so that the next read(2) will return a new event.
  */
 union fw_cdev_event {
-	struct fw_cdev_event_common common;
-	struct fw_cdev_event_bus_reset bus_reset;
-	struct fw_cdev_event_response response;
-	struct fw_cdev_event_request request;
-	struct fw_cdev_event_iso_interrupt iso_interrupt;
+	struct fw_cdev_event_common		common;
+	struct fw_cdev_event_bus_reset		bus_reset;
+	struct fw_cdev_event_response		response;
+	struct fw_cdev_event_request		request;
+	struct fw_cdev_event_iso_interrupt	iso_interrupt;
+	struct fw_cdev_event_iso_resource	iso_resource;
 };
 
+/* available since kernel version 2.6.22 */
 #define FW_CDEV_IOC_GET_INFO		_IOWR('#', 0x00, struct fw_cdev_get_info)
 #define FW_CDEV_IOC_SEND_REQUEST	_IOW('#', 0x01, struct fw_cdev_send_request)
 #define FW_CDEV_IOC_ALLOCATE		_IOWR('#', 0x02, struct fw_cdev_allocate)
@@ -178,13 +216,18 @@ union fw_cdev_event {
 #define FW_CDEV_IOC_INITIATE_BUS_RESET	_IOW('#', 0x05, struct fw_cdev_initiate_bus_reset)
 #define FW_CDEV_IOC_ADD_DESCRIPTOR	_IOWR('#', 0x06, struct fw_cdev_add_descriptor)
 #define FW_CDEV_IOC_REMOVE_DESCRIPTOR	_IOW('#', 0x07, struct fw_cdev_remove_descriptor)
-
 #define FW_CDEV_IOC_CREATE_ISO_CONTEXT	_IOWR('#', 0x08, struct fw_cdev_create_iso_context)
 #define FW_CDEV_IOC_QUEUE_ISO		_IOWR('#', 0x09, struct fw_cdev_queue_iso)
 #define FW_CDEV_IOC_START_ISO		_IOW('#', 0x0a, struct fw_cdev_start_iso)
 #define FW_CDEV_IOC_STOP_ISO		_IOW('#', 0x0b, struct fw_cdev_stop_iso)
+
+/* available since kernel version 2.6.24 */
 #define FW_CDEV_IOC_GET_CYCLE_TIMER	_IOR('#', 0x0c, struct fw_cdev_get_cycle_timer)
 
+/* available since kernel version 2.6.30 */
+#define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE   _IOWR('#', 0x0d, struct fw_cdev_allocate_iso_resource)
+#define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE _IOW('#', 0x0e, struct fw_cdev_deallocate)
+
 /* FW_CDEV_VERSION History
  *
  * 1	Feb 18, 2007:  Initial version.
@@ -284,9 +327,9 @@ struct fw_cdev_allocate {
 };
 
 /**
- * struct fw_cdev_deallocate - Free an address range allocation
- * @handle:	Handle to the address range, as returned by the kernel when the
- *		range was allocated
+ * struct fw_cdev_deallocate - Free a CSR address range or isochronous resource
+ * @handle:	Handle to the address range or iso resource, as returned by the
+ *		kernel when the range or resource was allocated
  */
 struct fw_cdev_deallocate {
 	__u32 handle;
@@ -479,4 +522,35 @@ struct fw_cdev_get_cycle_timer {
 	__u32 cycle_timer;
 };
 
+/**
+ * struct fw_cdev_allocate_iso_resource - Allocate a channel or bandwidth
+ * @closure:	Passed back to userspace in correponding iso resource events
+ * @channels:	Isochronous channels of which one is to be allocated
+ * @bandwidth:	Isochronous bandwidth units to be allocated
+ * @handle:	Handle to the allocation, written by the kernel
+ *
+ * The %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE ioctl initiates allocation of an
+ * isochronous channel and/or of isochronous bandwidth at the isochronous
+ * resource manager (IRM).  Only one of the channels specified in @channels is
+ * allocated.  An %FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED is sent after
+ * communication with the IRM, indicating success or failure in the event data.
+ * The kernel will automatically reallocate the resources after bus resets.
+ * Should a reallocation fail, an %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event
+ * will be sent.  The kernel will also automatically deallocate the resources
+ * when the file descriptor is closed.
+ *
+ * @channels is a host-endian bitfield with the most significant bit
+ * representing channel 0 and the least significant bit representing channel 63:
+ * 1ULL << (63 - c)
+ *
+ * @bandwidth is expressed in bandwidth allocation units, i.e. the time to send
+ * one quadlet of data (payload or header data) at speed S1600.
+ */
+struct fw_cdev_allocate_iso_resource {
+	__u64 closure;
+	__u64 channels;
+	__u32 bandwidth;
+	__u32 handle;
+};
+
 #endif /* _LINUX_FIREWIRE_CDEV_H */
-- 
cgit v1.2.3


From 1ec3c0269d7196118cc7c403654ca5f19ef4d584 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun, 4 Jan 2009 16:23:29 +0100
Subject: firewire: cdev: add ioctls for manual iso resource management

This adds ioctls for allocation and deallocation of a channel or/and
bandwidth without auto-reallocation and without auto-deallocation.

The benefit of these ioctls is that libraw1394-style isochronous
resource management can be implemented without write access to the IRM's
character device file.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/fw-cdev.c    | 67 ++++++++++++++++++++++++++++++++++---------
 include/linux/firewire-cdev.h | 42 ++++++++++++++++++++-------
 2 files changed, 86 insertions(+), 23 deletions(-)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index a227853aa1e2..08fe68d34f32 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -121,14 +121,15 @@ struct iso_resource {
 	struct client *client;
 	/* Schedule work and access todo only with client->lock held. */
 	struct delayed_work work;
-	enum {ISO_RES_ALLOC, ISO_RES_REALLOC, ISO_RES_DEALLOC,} todo;
+	enum {ISO_RES_ALLOC, ISO_RES_REALLOC, ISO_RES_DEALLOC,
+	      ISO_RES_ALLOC_ONCE, ISO_RES_DEALLOC_ONCE,} todo;
 	int generation;
 	u64 channels;
 	s32 bandwidth;
 	struct iso_resource_event *e_alloc, *e_dealloc;
 };
 
-static void schedule_iso_resource(struct iso_resource *);
+static int schedule_iso_resource(struct iso_resource *);
 static void release_iso_resource(struct client *, struct client_resource *);
 
 /*
@@ -1033,7 +1034,9 @@ static void iso_resource_work(struct work_struct *work)
 		skip = todo == ISO_RES_REALLOC &&
 		       r->generation == generation;
 	}
-	free = todo == ISO_RES_DEALLOC;
+	free = todo == ISO_RES_DEALLOC ||
+	       todo == ISO_RES_ALLOC_ONCE ||
+	       todo == ISO_RES_DEALLOC_ONCE;
 	r->generation = generation;
 	spin_unlock_irq(&client->lock);
 
@@ -1044,7 +1047,9 @@ static void iso_resource_work(struct work_struct *work)
 
 	fw_iso_resource_manage(client->device->card, generation,
 			r->channels, &channel, &bandwidth,
-			todo == ISO_RES_ALLOC || todo == ISO_RES_REALLOC);
+			todo == ISO_RES_ALLOC ||
+			todo == ISO_RES_REALLOC ||
+			todo == ISO_RES_ALLOC_ONCE);
 	/*
 	 * Is this generation outdated already?  As long as this resource sticks
 	 * in the idr, it will be scheduled again for a newer generation or at
@@ -1082,7 +1087,7 @@ static void iso_resource_work(struct work_struct *work)
 	if (todo == ISO_RES_REALLOC && success)
 		goto out;
 
-	if (todo == ISO_RES_ALLOC) {
+	if (todo == ISO_RES_ALLOC || todo == ISO_RES_ALLOC_ONCE) {
 		e = r->e_alloc;
 		r->e_alloc = NULL;
 	} else {
@@ -1106,10 +1111,17 @@ static void iso_resource_work(struct work_struct *work)
 	client_put(client);
 }
 
-static void schedule_iso_resource(struct iso_resource *r)
+static int schedule_iso_resource(struct iso_resource *r)
 {
-	if (schedule_delayed_work(&r->work, 0))
-		client_get(r->client);
+	int scheduled;
+
+	client_get(r->client);
+
+	scheduled = schedule_delayed_work(&r->work, 0);
+	if (!scheduled)
+		client_put(r->client);
+
+	return scheduled;
 }
 
 static void release_iso_resource(struct client *client,
@@ -1124,9 +1136,9 @@ static void release_iso_resource(struct client *client,
 	spin_unlock_irq(&client->lock);
 }
 
-static int ioctl_allocate_iso_resource(struct client *client, void *buffer)
+static int init_iso_resource(struct client *client,
+		struct fw_cdev_allocate_iso_resource *request, int todo)
 {
-	struct fw_cdev_allocate_iso_resource *request = buffer;
 	struct iso_resource_event *e1, *e2;
 	struct iso_resource *r;
 	int ret;
@@ -1146,7 +1158,7 @@ static int ioctl_allocate_iso_resource(struct client *client, void *buffer)
 
 	INIT_DELAYED_WORK(&r->work, iso_resource_work);
 	r->client	= client;
-	r->todo		= ISO_RES_ALLOC;
+	r->todo		= todo;
 	r->generation	= -1;
 	r->channels	= request->channels;
 	r->bandwidth	= request->bandwidth;
@@ -1158,8 +1170,14 @@ static int ioctl_allocate_iso_resource(struct client *client, void *buffer)
 	e2->resource.closure	= request->closure;
 	e2->resource.type	= FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED;
 
-	r->resource.release = release_iso_resource;
-	ret = add_client_resource(client, &r->resource, GFP_KERNEL);
+	if (todo == ISO_RES_ALLOC) {
+		r->resource.release = release_iso_resource;
+		ret = add_client_resource(client, &r->resource, GFP_KERNEL);
+	} else {
+		r->resource.release = NULL;
+		r->resource.handle = -1;
+		ret = schedule_iso_resource(r) ? 0 : -ENOMEM;
+	}
 	if (ret < 0)
 		goto fail;
 	request->handle = r->resource.handle;
@@ -1173,6 +1191,13 @@ static int ioctl_allocate_iso_resource(struct client *client, void *buffer)
 	return ret;
 }
 
+static int ioctl_allocate_iso_resource(struct client *client, void *buffer)
+{
+	struct fw_cdev_allocate_iso_resource *request = buffer;
+
+	return init_iso_resource(client, request, ISO_RES_ALLOC);
+}
+
 static int ioctl_deallocate_iso_resource(struct client *client, void *buffer)
 {
 	struct fw_cdev_deallocate *request = buffer;
@@ -1181,6 +1206,20 @@ static int ioctl_deallocate_iso_resource(struct client *client, void *buffer)
 				       release_iso_resource, NULL);
 }
 
+static int ioctl_allocate_iso_resource_once(struct client *client, void *buffer)
+{
+	struct fw_cdev_allocate_iso_resource *request = buffer;
+
+	return init_iso_resource(client, request, ISO_RES_ALLOC_ONCE);
+}
+
+static int ioctl_deallocate_iso_resource_once(struct client *client, void *buffer)
+{
+	struct fw_cdev_allocate_iso_resource *request = buffer;
+
+	return init_iso_resource(client, request, ISO_RES_DEALLOC_ONCE);
+}
+
 static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_get_info,
 	ioctl_send_request,
@@ -1197,6 +1236,8 @@ static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_get_cycle_timer,
 	ioctl_allocate_iso_resource,
 	ioctl_deallocate_iso_resource,
+	ioctl_allocate_iso_resource_once,
+	ioctl_deallocate_iso_resource_once,
 };
 
 static int dispatch_ioctl(struct client *client,
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 25b96dd0574f..08ca838a727b 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -151,7 +151,7 @@ struct fw_cdev_event_iso_interrupt {
 /**
  * struct fw_cdev_event_iso_resource - Iso resources were allocated or freed
  * @closure:	See &fw_cdev_event_common;
- *		set by %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE ioctl
+ *		set by %FW_CDEV_IOC_(DE)ALLOCATE_ISO_RESOURCE(_ONCE) ioctl
  * @type:	%FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED or
  *		%FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED
  * @handle:	Reference by which an allocated resource can be deallocated
@@ -164,12 +164,12 @@ struct fw_cdev_event_iso_interrupt {
  * resource was allocated at the IRM.  The client has to check @channel and
  * @bandwidth for whether the allocation actually succeeded.
  *
- * @channel is <0 if no channel was allocated.
- * @bandwidth is 0 if no bandwidth was allocated.
- *
  * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event is sent after an isochronous
  * resource was deallocated at the IRM.  It is also sent when automatic
  * reallocation after a bus reset failed.
+ *
+ * @channel is <0 if no channel was (de)allocated or if reallocation failed.
+ * @bandwidth is 0 if no bandwidth was (de)allocated or if reallocation failed.
  */
 struct fw_cdev_event_iso_resource {
 	__u64 closure;
@@ -225,8 +225,10 @@ union fw_cdev_event {
 #define FW_CDEV_IOC_GET_CYCLE_TIMER	_IOR('#', 0x0c, struct fw_cdev_get_cycle_timer)
 
 /* available since kernel version 2.6.30 */
-#define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE   _IOWR('#', 0x0d, struct fw_cdev_allocate_iso_resource)
-#define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE _IOW('#', 0x0e, struct fw_cdev_deallocate)
+#define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE       _IOWR('#', 0x0d, struct fw_cdev_allocate_iso_resource)
+#define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE      _IOW('#', 0x0e, struct fw_cdev_deallocate)
+#define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE   _IOW('#', 0x0f, struct fw_cdev_allocate_iso_resource)
+#define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE _IOW('#', 0x10, struct fw_cdev_allocate_iso_resource)
 
 /* FW_CDEV_VERSION History
  *
@@ -523,11 +525,12 @@ struct fw_cdev_get_cycle_timer {
 };
 
 /**
- * struct fw_cdev_allocate_iso_resource - Allocate a channel or bandwidth
+ * struct fw_cdev_allocate_iso_resource - (De)allocate a channel or bandwidth
  * @closure:	Passed back to userspace in correponding iso resource events
- * @channels:	Isochronous channels of which one is to be allocated
- * @bandwidth:	Isochronous bandwidth units to be allocated
- * @handle:	Handle to the allocation, written by the kernel
+ * @channels:	Isochronous channels of which one is to be (de)allocated
+ * @bandwidth:	Isochronous bandwidth units to be (de)allocated
+ * @handle:	Handle to the allocation, written by the kernel (only valid in
+ *		case of %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE ioctls)
  *
  * The %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE ioctl initiates allocation of an
  * isochronous channel and/or of isochronous bandwidth at the isochronous
@@ -539,6 +542,25 @@ struct fw_cdev_get_cycle_timer {
  * will be sent.  The kernel will also automatically deallocate the resources
  * when the file descriptor is closed.
  *
+ * The %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE ioctl can be used to initiate
+ * deallocation of resources which were allocated as described above.
+ * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event concludes this operation.
+ *
+ * The %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE ioctl is a variant of allocation
+ * without automatic re- or deallocation.
+ * An %FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED event concludes this operation,
+ * indicating success or failure in its data.
+ *
+ * The %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE ioctl works like
+ * %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE except that resources are freed
+ * instead of allocated.  At most one channel may be specified in this ioctl.
+ * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event concludes this operation.
+ *
+ * To summarize, %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE allocates iso resources
+ * for the lifetime of the fd or handle.
+ * In contrast, %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE allocates iso resources
+ * for the duration of a bus generation.
+ *
  * @channels is a host-endian bitfield with the most significant bit
  * representing channel 0 and the least significant bit representing channel 63:
  * 1ULL << (63 - c)
-- 
cgit v1.2.3


From 33580a3ef5ba3bc0ee1b520df82a24bb37ce28f0 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun, 4 Jan 2009 16:23:29 +0100
Subject: firewire: cdev: add ioctl to query maximum transmission speed

While the speed of asynchronous transactions is automatically chosen by
the kernel, the speed of isochronous streams has to be chosen by the
initiating client.

In case of 1394a bus topologies, the maximum possible speed could be
figured out with some effort by evaluation of the remote node's link
speed field in the config ROM, the local node's link speed field, and
the PHY speeds and topologic information in the local node's or IRM's
topology map CSR.  However, this does not work in case of 1394b buses.

Hence add an ioctl to export the maximum speed which the kernel already
determined.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/fw-cdev.c    | 10 ++++++++++
 include/linux/firewire-cdev.h | 10 ++++++++++
 2 files changed, 20 insertions(+)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 08fe68d34f32..05ad2a8f286c 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -1220,6 +1220,15 @@ static int ioctl_deallocate_iso_resource_once(struct client *client, void *buffe
 	return init_iso_resource(client, request, ISO_RES_DEALLOC_ONCE);
 }
 
+static int ioctl_get_speed(struct client *client, void *buffer)
+{
+	struct fw_cdev_get_speed *request = buffer;
+
+	request->max_speed = client->device->max_speed;
+
+	return 0;
+}
+
 static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_get_info,
 	ioctl_send_request,
@@ -1238,6 +1247,7 @@ static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_deallocate_iso_resource,
 	ioctl_allocate_iso_resource_once,
 	ioctl_deallocate_iso_resource_once,
+	ioctl_get_speed,
 };
 
 static int dispatch_ioctl(struct client *client,
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 08ca838a727b..f819c1026958 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -229,6 +229,7 @@ union fw_cdev_event {
 #define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE      _IOW('#', 0x0e, struct fw_cdev_deallocate)
 #define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE   _IOW('#', 0x0f, struct fw_cdev_allocate_iso_resource)
 #define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE _IOW('#', 0x10, struct fw_cdev_allocate_iso_resource)
+#define FW_CDEV_IOC_GET_SPEED                    _IOR('#', 0x11, struct fw_cdev_get_speed)
 
 /* FW_CDEV_VERSION History
  *
@@ -575,4 +576,13 @@ struct fw_cdev_allocate_iso_resource {
 	__u32 handle;
 };
 
+/**
+ * struct fw_cdev_get_speed - Query maximum speed to or from this device
+ * @max_speed:	Speed code; minimum of the device's link speed, the local node's
+ *		link speed, and all PHY port speeds between the two links
+ */
+struct fw_cdev_get_speed {
+	__u32 max_speed;
+};
+
 #endif /* _LINUX_FIREWIRE_CDEV_H */
-- 
cgit v1.2.3


From acfe8333572cad5dc70fce18ac966be0446548d7 Mon Sep 17 00:00:00 2001
From: "Jay Fenlason, Stefan Richter" <stefanr@s5r6.in-berlin.de>
Date: Sun, 4 Jan 2009 16:23:29 +0100
Subject: firewire: cdev: add ioctl for broadcast write requests

Write transactions to the broadcast node ID are a convenient way to
trigger functions of multiple nodes at once.  IIDC is a protocol which
can make use of this if multiple cameras with same command_regs_base are
connected at the same bus.

Based on
    Date: Wed, 10 Sep 2008 11:32:16 -0400
    From: Jay Fenlason <fenlason@redhat.com>
    Subject: [patch] SEND_BROADCAST_REQUEST
Changes:  ioctl_send_request() and ioctl_send_broadcast_request() now
share code.  Broadcast speed corrected to S100.  Check for proper tcode.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/fw-cdev.c    | 74 +++++++++++++++++++++++++++----------------
 include/linux/firewire-cdev.h |  1 +
 2 files changed, 48 insertions(+), 27 deletions(-)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 05ad2a8f286c..a1637a86da3d 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -518,10 +518,10 @@ static void complete_transaction(struct fw_card *card, int rcode,
 	client_put(client);
 }
 
-static int ioctl_send_request(struct client *client, void *buffer)
+static int init_request(struct client *client,
+			struct fw_cdev_send_request *request,
+			int destination_id, int speed)
 {
-	struct fw_device *device = client->device;
-	struct fw_cdev_send_request *request = buffer;
 	struct outbound_transaction_event *e;
 	int ret;
 
@@ -544,24 +544,6 @@ static int ioctl_send_request(struct client *client, void *buffer)
 		goto failed;
 	}
 
-	switch (request->tcode) {
-	case TCODE_WRITE_QUADLET_REQUEST:
-	case TCODE_WRITE_BLOCK_REQUEST:
-	case TCODE_READ_QUADLET_REQUEST:
-	case TCODE_READ_BLOCK_REQUEST:
-	case TCODE_LOCK_MASK_SWAP:
-	case TCODE_LOCK_COMPARE_SWAP:
-	case TCODE_LOCK_FETCH_ADD:
-	case TCODE_LOCK_LITTLE_ADD:
-	case TCODE_LOCK_BOUNDED_ADD:
-	case TCODE_LOCK_WRAP_ADD:
-	case TCODE_LOCK_VENDOR_DEPENDENT:
-		break;
-	default:
-		ret = -EINVAL;
-		goto failed;
-	}
-
 	e->r.resource.release = release_transaction;
 	ret = add_client_resource(client, &e->r.resource, GFP_KERNEL);
 	if (ret < 0)
@@ -570,12 +552,9 @@ static int ioctl_send_request(struct client *client, void *buffer)
 	/* Get a reference for the transaction callback */
 	client_get(client);
 
-	fw_send_request(device->card, &e->r.transaction,
-			request->tcode & 0x1f,
-			device->node->node_id,
-			request->generation,
-			device->max_speed,
-			request->offset,
+	fw_send_request(client->device->card, &e->r.transaction,
+			request->tcode & 0x1f, destination_id,
+			request->generation, speed, request->offset,
 			e->response.data, request->length,
 			complete_transaction, e);
 
@@ -589,6 +568,31 @@ static int ioctl_send_request(struct client *client, void *buffer)
 	return ret;
 }
 
+static int ioctl_send_request(struct client *client, void *buffer)
+{
+	struct fw_cdev_send_request *request = buffer;
+
+	switch (request->tcode) {
+	case TCODE_WRITE_QUADLET_REQUEST:
+	case TCODE_WRITE_BLOCK_REQUEST:
+	case TCODE_READ_QUADLET_REQUEST:
+	case TCODE_READ_BLOCK_REQUEST:
+	case TCODE_LOCK_MASK_SWAP:
+	case TCODE_LOCK_COMPARE_SWAP:
+	case TCODE_LOCK_FETCH_ADD:
+	case TCODE_LOCK_LITTLE_ADD:
+	case TCODE_LOCK_BOUNDED_ADD:
+	case TCODE_LOCK_WRAP_ADD:
+	case TCODE_LOCK_VENDOR_DEPENDENT:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return init_request(client, request, client->device->node->node_id,
+			    client->device->max_speed);
+}
+
 static void release_request(struct client *client,
 			    struct client_resource *resource)
 {
@@ -1229,6 +1233,21 @@ static int ioctl_get_speed(struct client *client, void *buffer)
 	return 0;
 }
 
+static int ioctl_send_broadcast_request(struct client *client, void *buffer)
+{
+	struct fw_cdev_send_request *request = buffer;
+
+	switch (request->tcode) {
+	case TCODE_WRITE_QUADLET_REQUEST:
+	case TCODE_WRITE_BLOCK_REQUEST:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return init_request(client, request, LOCAL_BUS | 0x3f, SCODE_100);
+}
+
 static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_get_info,
 	ioctl_send_request,
@@ -1248,6 +1267,7 @@ static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_allocate_iso_resource_once,
 	ioctl_deallocate_iso_resource_once,
 	ioctl_get_speed,
+	ioctl_send_broadcast_request,
 };
 
 static int dispatch_ioctl(struct client *client,
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index f819c1026958..340a78502bca 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -230,6 +230,7 @@ union fw_cdev_event {
 #define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE   _IOW('#', 0x0f, struct fw_cdev_allocate_iso_resource)
 #define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE _IOW('#', 0x10, struct fw_cdev_allocate_iso_resource)
 #define FW_CDEV_IOC_GET_SPEED                    _IOR('#', 0x11, struct fw_cdev_get_speed)
+#define FW_CDEV_IOC_SEND_BROADCAST_REQUEST       _IOW('#', 0x12, struct fw_cdev_send_request)
 
 /* FW_CDEV_VERSION History
  *
-- 
cgit v1.2.3


From 77258da403be4cfce84b6abcdb515ad0bd1f92f1 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Wed, 7 Jan 2009 20:14:53 +0100
Subject: firewire: cdev: increment fw_cdev_version, update documentation

Necessary due to
    Date: Tue, 22 Jul 2008 23:23:40 -0700
    From: David Moore <dcm@acm.org>
    Subject: firewire: Include iso timestamp in headers when header_size > 4

Side note:  The lack of upwards compatibility sounds worse than it is.
All existing client implementations, libraw1394 and libdc1394, set
header_size = 4.  And since the ABI v1 behaviour does not offer any
advantages over the new behaviour, we deliberately do not provide the
old behaviour anymore.

Also add documentation about the format of fw_cdev_get_cycle_timer which
may be used in conjunction with the timestamp of iso packets but has a
different format.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 include/linux/firewire-cdev.h | 35 ++++++++++++++++++++++++++++++-----
 1 file changed, 30 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 340a78502bca..6ed9127680fd 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -138,7 +138,24 @@ struct fw_cdev_event_request {
  * This event is sent when the controller has completed an &fw_cdev_iso_packet
  * with the %FW_CDEV_ISO_INTERRUPT bit set.  In the receive case, the headers
  * stripped of all packets up until and including the interrupt packet are
- * returned in the @header field.
+ * returned in the @header field.  The amount of header data per packet is as
+ * specified at iso context creation by &fw_cdev_create_iso_context.header_size.
+ *
+ * In version 1 of this ABI, header data consisted of the 1394 isochronous
+ * packet header, followed by quadlets from the packet payload if
+ * &fw_cdev_create_iso_context.header_size > 4.
+ *
+ * In version 2 of this ABI, header data consist of the 1394 isochronous
+ * packet header, followed by a timestamp quadlet if
+ * &fw_cdev_create_iso_context.header_size > 4, followed by quadlets from the
+ * packet payload if &fw_cdev_create_iso_context.header_size > 8.
+ *
+ * Behaviour of ver. 1 of this ABI is no longer available since ABI ver. 2.
+ *
+ * Format of 1394 iso packet header: 16 bits len, 2 bits tag, 6 bits channel,
+ * 4 bits tcode, 4 bits sy, in big endian byte order.  Format of timestamp:
+ * 16 bits invalid, 3 bits cycleSeconds, 13 bits cycleCount, in big endian byte
+ * order.
  */
 struct fw_cdev_event_iso_interrupt {
 	__u64 closure;
@@ -232,11 +249,13 @@ union fw_cdev_event {
 #define FW_CDEV_IOC_GET_SPEED                    _IOR('#', 0x11, struct fw_cdev_get_speed)
 #define FW_CDEV_IOC_SEND_BROADCAST_REQUEST       _IOW('#', 0x12, struct fw_cdev_send_request)
 
-/* FW_CDEV_VERSION History
- *
- * 1	Feb 18, 2007:  Initial version.
+/*
+ * FW_CDEV_VERSION History
+ *  1  (2.6.22)  - initial version
+ *  2  (2.6.30)  - changed &fw_cdev_event_iso_interrupt.header if
+ *                 &fw_cdev_create_iso_context.header_size is 8 or more
  */
-#define FW_CDEV_VERSION		1
+#define FW_CDEV_VERSION 2
 
 /**
  * struct fw_cdev_get_info - General purpose information ioctl
@@ -417,6 +436,9 @@ struct fw_cdev_remove_descriptor {
  *
  * If a context was successfully created, the kernel writes back a handle to the
  * context, which must be passed in for subsequent operations on that context.
+ *
+ * Note that the effect of a @header_size > 4 depends on
+ * &fw_cdev_get_info.version, as documented at &fw_cdev_event_iso_interrupt.
  */
 struct fw_cdev_create_iso_context {
 	__u32 type;
@@ -520,6 +542,9 @@ struct fw_cdev_stop_iso {
  * The %FW_CDEV_IOC_GET_CYCLE_TIMER ioctl reads the isochronous cycle timer
  * and also the system clock.  This allows to express the receive time of an
  * isochronous packet as a system time with microsecond accuracy.
+ *
+ * @cycle_timer consists of 7 bits cycleSeconds, 13 bits cycleCount, and
+ * 12 bits cycleOffset, in host byte order.
  */
 struct fw_cdev_get_cycle_timer {
 	__u64 local_time;
-- 
cgit v1.2.3


From 5d9cb7d276a9c465fef5a771792eac2cf1929f2b Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Thu, 8 Jan 2009 23:07:40 +0100
Subject: firewire: cdev: add ioctls for iso resource management, amendment

Some fixes:
  - Remove stale documentation.
  - Fix a != vs. == thinko that got in the way of channel management.
  - Try bandwidth deallocation even if channel deallocation failed.

A simplification:
  - fw_cdev_allocate_iso_resource.channels is now ordered like
    libdc1394's dc1394_iso_allocate_channel() channels_allowed
    argument.

By the way, I looked closer at cards from NEC, TI, and VIA, and noticed
that they all don't implement IEEE 1394a behaviour which is meant to
deviate from IEEE 1212's notion of lock compare-swap.  This means that
we have to do two lock transactions instead of one in many cases where
one transaction would already succeed on a fully 1394a compliant IRM.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/fw-cdev.c    |  2 +-
 drivers/firewire/fw-iso.c     | 38 ++++++++++++++++++++++----------------
 include/linux/firewire-cdev.h | 10 ++++------
 3 files changed, 27 insertions(+), 23 deletions(-)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index b93ad9c0a0d0..257b0c709a8b 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -1082,7 +1082,7 @@ static void iso_resource_work(struct work_struct *work)
 	spin_unlock_irq(&client->lock);
 
 	if (todo == ISO_RES_ALLOC && channel >= 0)
-		r->channels = 1ULL << (63 - channel);
+		r->channels = 1ULL << channel;
 
 	if (todo == ISO_RES_REALLOC && success)
 		goto out;
diff --git a/drivers/firewire/fw-iso.c b/drivers/firewire/fw-iso.c
index a7b57b253b06..f511d16efaee 100644
--- a/drivers/firewire/fw-iso.c
+++ b/drivers/firewire/fw-iso.c
@@ -204,17 +204,19 @@ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation,
 }
 
 static int manage_channel(struct fw_card *card, int irm_id, int generation,
-			  __be32 channels_mask, u64 offset, bool allocate)
+			  u32 channels_mask, u64 offset, bool allocate)
 {
-	__be32 data[2], c, old = allocate ? cpu_to_be32(~0) : 0;
+	__be32 data[2], c, all, old;
 	int i, retry = 5;
 
+	old = all = allocate ? cpu_to_be32(~0) : 0;
+
 	for (i = 0; i < 32; i++) {
-		c = cpu_to_be32(1 << (31 - i));
-		if (!(channels_mask & c))
+		if (!(channels_mask & 1 << i))
 			continue;
 
-		if (allocate == !(old & c))
+		c = cpu_to_be32(1 << (31 - i));
+		if ((old & c) != (all & c))
 			continue;
 
 		data[0] = old;
@@ -233,7 +235,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
 			old = data[0];
 
 			/* Is the IRM 1394a-2000 compliant? */
-			if ((data[0] & c) != (data[1] & c))
+			if ((data[0] & c) == (data[1] & c))
 				continue;
 
 			/* 1394-1995 IRM, fall through to retry. */
@@ -249,11 +251,10 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
 static void deallocate_channel(struct fw_card *card, int irm_id,
 			       int generation, int channel)
 {
-	__be32 mask;
+	u32 mask;
 	u64 offset;
 
-	mask = channel < 32 ? cpu_to_be32(1 << (31 - channel)) :
-			      cpu_to_be32(1 << (63 - channel));
+	mask = channel < 32 ? 1 << channel : 1 << (channel - 32);
 	offset = channel < 32 ? CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI :
 				CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO;
 
@@ -266,7 +267,12 @@ static void deallocate_channel(struct fw_card *card, int irm_id,
  * In parameters: card, generation, channels_mask, bandwidth, allocate
  * Out parameters: channel, bandwidth
  * This function blocks (sleeps) during communication with the IRM.
+ *
  * Allocates or deallocates at most one channel out of channels_mask.
+ * channels_mask is a bitfield with MSB for channel 63 and LSB for channel 0.
+ * (Note, the IRM's CHANNELS_AVAILABLE is a big-endian bitfield with MSB for
+ * channel 0 and LSB for channel 63.)
+ * Allocates or deallocates as many bandwidth allocation units as specified.
  *
  * Returns channel < 0 if no channel was allocated or deallocated.
  * Returns bandwidth = 0 if no bandwidth was allocated or deallocated.
@@ -274,17 +280,17 @@ static void deallocate_channel(struct fw_card *card, int irm_id,
  * If generation is stale, deallocations succeed but allocations fail with
  * channel = -EAGAIN.
  *
- * If channel (de)allocation fails, bandwidth (de)allocation fails too.
+ * If channel allocation fails, no bandwidth will be allocated either.
  * If bandwidth allocation fails, no channel will be allocated either.
- * If bandwidth deallocation fails, channel deallocation may still have been
- * successful.
+ * But deallocations of channel and bandwidth are tried independently
+ * of each other's success.
  */
 void fw_iso_resource_manage(struct fw_card *card, int generation,
 			    u64 channels_mask, int *channel, int *bandwidth,
 			    bool allocate)
 {
-	__be32 channels_hi = cpu_to_be32(channels_mask >> 32);
-	__be32 channels_lo = cpu_to_be32(channels_mask);
+	u32 channels_hi = channels_mask;	/* channels 31...0 */
+	u32 channels_lo = channels_mask >> 32;	/* channels 63...32 */
 	int irm_id, ret, c = -EINVAL;
 
 	spin_lock_irq(&card->lock);
@@ -302,7 +308,7 @@ void fw_iso_resource_manage(struct fw_card *card, int generation,
 	}
 	*channel = c;
 
-	if (channels_mask != 0 && c < 0)
+	if (allocate && channels_mask != 0 && c < 0)
 		*bandwidth = 0;
 
 	if (*bandwidth == 0)
@@ -312,7 +318,7 @@ void fw_iso_resource_manage(struct fw_card *card, int generation,
 	if (ret < 0)
 		*bandwidth = 0;
 
-	if (ret < 0 && c >= 0 && allocate) {
+	if (allocate && ret < 0 && c >= 0) {
 		deallocate_channel(card, irm_id, generation, c);
 		*channel = ret;
 	}
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 6ed9127680fd..2e35379bf96c 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -174,8 +174,6 @@ struct fw_cdev_event_iso_interrupt {
  * @handle:	Reference by which an allocated resource can be deallocated
  * @channel:	Isochronous channel which was (de)allocated, if any
  * @bandwidth:	Bandwidth allocation units which were (de)allocated, if any
- * @channels_available:  Last known availability of channels
- * @bandwidth_available: Last known availability of bandwidth
  *
  * An %FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED event is sent after an isochronous
  * resource was allocated at the IRM.  The client has to check @channel and
@@ -580,7 +578,7 @@ struct fw_cdev_get_cycle_timer {
  *
  * The %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE ioctl works like
  * %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE except that resources are freed
- * instead of allocated.  At most one channel may be specified in this ioctl.
+ * instead of allocated.
  * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event concludes this operation.
  *
  * To summarize, %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE allocates iso resources
@@ -588,9 +586,9 @@ struct fw_cdev_get_cycle_timer {
  * In contrast, %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE allocates iso resources
  * for the duration of a bus generation.
  *
- * @channels is a host-endian bitfield with the most significant bit
- * representing channel 0 and the least significant bit representing channel 63:
- * 1ULL << (63 - c)
+ * @channels is a host-endian bitfield with the least significant bit
+ * representing channel 0 and the most significant bit representing channel 63:
+ * 1ULL << c for each channel c that is a candidate for (de)allocation.
  *
  * @bandwidth is expressed in bandwidth allocation units, i.e. the time to send
  * one quadlet of data (payload or header data) at speed S1600.
-- 
cgit v1.2.3


From f8c2287c65f8f72000102fc058232669e4540bc4 Mon Sep 17 00:00:00 2001
From: Jay Fenlason <fenlason@redhat.com>
Date: Thu, 5 Mar 2009 19:08:40 +0100
Subject: firewire: implement asynchronous stream transmission

Allow userspace and other firewire drivers (fw-ipv4 I'm looking at
you!) to send Asynchronous Transmit Streams as described in 7.8.3 of
release 1.1 of the 1394 Open Host Controller Interface Specification.

Signed-off-by: Jay Fenlason <fenlason@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (tweaks)
---
 drivers/firewire/fw-cdev.c        | 33 +++++++++++++++++++++++++++++++++
 drivers/firewire/fw-ohci.c        | 21 +++++++++++++++++++--
 drivers/firewire/fw-transaction.c | 25 +++++++++++++++++++++++++
 drivers/firewire/fw-transaction.h |  4 ++++
 include/linux/firewire-cdev.h     | 27 +++++++++++++++++++++++++++
 5 files changed, 108 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 214e534efee5..539dae5eb5b2 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -1242,6 +1242,38 @@ static int ioctl_send_broadcast_request(struct client *client, void *buffer)
 	return init_request(client, request, LOCAL_BUS | 0x3f, SCODE_100);
 }
 
+struct stream_packet {
+	struct fw_packet packet;
+	u8 data[0];
+};
+
+static void send_stream_packet_done(struct fw_packet *packet,
+				    struct fw_card *card, int status)
+{
+	kfree(container_of(packet, struct stream_packet, packet));
+}
+
+static int ioctl_send_stream_packet(struct client *client, void *buffer)
+{
+	struct fw_cdev_send_stream_packet *request = buffer;
+	struct stream_packet *p;
+
+	p = kmalloc(sizeof(*p) + request->size, GFP_KERNEL);
+	if (p == NULL)
+		return -ENOMEM;
+
+	if (request->data &&
+	    copy_from_user(p->data, u64_to_uptr(request->data), request->size)) {
+		kfree(p);
+		return -EFAULT;
+	}
+	fw_send_stream_packet(client->device->card, &p->packet,
+			      request->generation, request->speed,
+			      request->channel, request->sy, request->tag,
+			      p->data, request->size, send_stream_packet_done);
+	return 0;
+}
+
 static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_get_info,
 	ioctl_send_request,
@@ -1262,6 +1294,7 @@ static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
 	ioctl_deallocate_iso_resource_once,
 	ioctl_get_speed,
 	ioctl_send_broadcast_request,
+	ioctl_send_stream_packet,
 };
 
 static int dispatch_ioctl(struct client *client,
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index c92278374658..1180d0be0bb4 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -936,7 +936,9 @@ static int at_context_queue_packet(struct context *ctx,
 	 */
 
 	header = (__le32 *) &d[1];
-	if (packet->header_length > 8) {
+	switch (packet->header_length) {
+	case 16:
+	case 12:
 		header[0] = cpu_to_le32((packet->header[0] & 0xffff) |
 					(packet->speed << 16));
 		header[1] = cpu_to_le32((packet->header[1] & 0xffff) |
@@ -950,12 +952,27 @@ static int at_context_queue_packet(struct context *ctx,
 			header[3] = (__force __le32) packet->header[3];
 
 		d[0].req_count = cpu_to_le16(packet->header_length);
-	} else {
+		break;
+
+	case 8:
 		header[0] = cpu_to_le32((OHCI1394_phy_tcode << 4) |
 					(packet->speed << 16));
 		header[1] = cpu_to_le32(packet->header[0]);
 		header[2] = cpu_to_le32(packet->header[1]);
 		d[0].req_count = cpu_to_le16(12);
+		break;
+
+	case 4:
+		header[0] = cpu_to_le32((packet->header[0] & 0xffff) |
+					(packet->speed << 16));
+		header[1] = cpu_to_le32(packet->header[0] & 0xffff0000);
+		d[0].req_count = cpu_to_le16(8);
+		break;
+
+	default:
+		/* BUG(); */
+		packet->ack = RCODE_SEND_ERROR;
+		return -1;
 	}
 
 	driver_data = (struct driver_data *) &d[3];
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
index 76938fe432a0..e3da58991960 100644
--- a/drivers/firewire/fw-transaction.c
+++ b/drivers/firewire/fw-transaction.c
@@ -37,6 +37,10 @@
 #include "fw-topology.h"
 #include "fw-device.h"
 
+#define HEADER_TAG(tag)			((tag) << 14)
+#define HEADER_CHANNEL(ch)		((ch) << 8)
+#define HEADER_SY(sy)			((sy) << 0)
+
 #define HEADER_PRI(pri)			((pri) << 0)
 #define HEADER_TCODE(tcode)		((tcode) << 4)
 #define HEADER_RETRY(retry)		((retry) << 8)
@@ -293,6 +297,27 @@ void fw_send_request(struct fw_card *card, struct fw_transaction *t, int tcode,
 }
 EXPORT_SYMBOL(fw_send_request);
 
+void fw_send_stream_packet(struct fw_card *card, struct fw_packet *p,
+		int generation, int speed, int channel, int sy, int tag,
+		void *payload, size_t length, fw_packet_callback_t callback)
+{
+	p->callback = callback;
+	p->header[0] =
+		  HEADER_DATA_LENGTH(length)
+		| HEADER_TAG(tag)
+		| HEADER_CHANNEL(channel)
+		| HEADER_TCODE(TCODE_STREAM_DATA)
+		| HEADER_SY(sy);
+	p->header_length = 4;
+	p->payload = payload;
+	p->payload_length = length;
+	p->speed = speed;
+	p->generation = generation;
+	p->ack = 0;
+
+	card->driver->send_request(card, p);
+}
+
 struct transaction_callback_data {
 	struct completion done;
 	void *payload;
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
index 35d0a4bb6d5c..eed2e295eb3c 100644
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -407,6 +407,10 @@ void fw_send_request(struct fw_card *card, struct fw_transaction *t,
 		int tcode, int destination_id, int generation, int speed,
 		unsigned long long offset, void *payload, size_t length,
 		fw_transaction_callback_t callback, void *callback_data);
+void fw_send_stream_packet(struct fw_card *card, struct fw_packet *p,
+		int generation, int speed, int channel, int sy, int tag,
+		void *payload, size_t length, fw_packet_callback_t callback);
+
 int fw_cancel_transaction(struct fw_card *card,
 			  struct fw_transaction *transaction);
 void fw_flush_transactions(struct fw_card *card);
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 2e35379bf96c..4dfc84d0ac76 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -246,6 +246,7 @@ union fw_cdev_event {
 #define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE _IOW('#', 0x10, struct fw_cdev_allocate_iso_resource)
 #define FW_CDEV_IOC_GET_SPEED                    _IOR('#', 0x11, struct fw_cdev_get_speed)
 #define FW_CDEV_IOC_SEND_BROADCAST_REQUEST       _IOW('#', 0x12, struct fw_cdev_send_request)
+#define FW_CDEV_IOC_SEND_STREAM_PACKET           _IOW('#', 0x13, struct fw_cdev_send_stream_packet)
 
 /*
  * FW_CDEV_VERSION History
@@ -609,4 +610,30 @@ struct fw_cdev_get_speed {
 	__u32 max_speed;
 };
 
+/**
+ * struct fw_cdev_send_stream_packet - send an asynchronous stream packet
+ * @generation:   Bus generation where the packet is valid
+ * @speed:	  Speed code to send the packet at
+ * @channel:	  Channel to send the packet on
+ * @sy:		  Four-bit sy code for the packet
+ * @tag:	  Two-bit tag field to use for the packet
+ * @size:	  Size of the packet's data payload
+ * @data:	  Userspace pointer to the payload
+ *
+ * The %FW_CDEV_IOC_SEND_STREAM_PACKET ioctl sends an asynchronous stream packet
+ * to every device (that is listening to the specified channel) on the
+ * firewire bus.  It is the applications's job to ensure
+ * that the intended device(s) will be able to receive the packet at the chosen
+ * transmit speed.
+ */
+struct fw_cdev_send_stream_packet {
+	__u32 generation;
+	__u32 speed;
+	__u32 channel;
+	__u32 sy;
+	__u32 tag;
+	__u32 size;
+	__u64 data;
+};
+
 #endif /* _LINUX_FIREWIRE_CDEV_H */
-- 
cgit v1.2.3


From c8a25900f35e575938c791507894c036c0f2ca7d Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Tue, 10 Mar 2009 20:59:16 +0100
Subject: firewire: cdev: amendment to "add ioctl to query maximum transmission
 speed"

The as yet unreleased FW_CDEV_IOC_GET_SPEED ioctl puts only a single
integer into the parameter buffer.  We can use ioctl()'s return value
instead.

(Also: Some whitespace change in firewire-cdev.h.)

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/fw-cdev.c    | 11 ++++++-----
 include/linux/firewire-cdev.h | 37 ++++++++++++++-----------------------
 2 files changed, 20 insertions(+), 28 deletions(-)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 539dae5eb5b2..2784f91896db 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -1214,13 +1214,14 @@ static int ioctl_deallocate_iso_resource_once(struct client *client, void *buffe
 	return init_iso_resource(client, request, ISO_RES_DEALLOC_ONCE);
 }
 
+/*
+ * Returns a speed code:  Maximum speed to or from this device,
+ * limited by the device's link speed, the local node's link speed,
+ * and all PHY port speeds between the two links.
+ */
 static int ioctl_get_speed(struct client *client, void *buffer)
 {
-	struct fw_cdev_get_speed *request = buffer;
-
-	request->max_speed = client->device->max_speed;
-
-	return 0;
+	return client->device->max_speed;
 }
 
 static int ioctl_send_broadcast_request(struct client *client, void *buffer)
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 4dfc84d0ac76..de4035792f70 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -223,28 +223,28 @@ union fw_cdev_event {
 };
 
 /* available since kernel version 2.6.22 */
-#define FW_CDEV_IOC_GET_INFO		_IOWR('#', 0x00, struct fw_cdev_get_info)
-#define FW_CDEV_IOC_SEND_REQUEST	_IOW('#', 0x01, struct fw_cdev_send_request)
-#define FW_CDEV_IOC_ALLOCATE		_IOWR('#', 0x02, struct fw_cdev_allocate)
-#define FW_CDEV_IOC_DEALLOCATE		_IOW('#', 0x03, struct fw_cdev_deallocate)
-#define FW_CDEV_IOC_SEND_RESPONSE	_IOW('#', 0x04, struct fw_cdev_send_response)
-#define FW_CDEV_IOC_INITIATE_BUS_RESET	_IOW('#', 0x05, struct fw_cdev_initiate_bus_reset)
-#define FW_CDEV_IOC_ADD_DESCRIPTOR	_IOWR('#', 0x06, struct fw_cdev_add_descriptor)
-#define FW_CDEV_IOC_REMOVE_DESCRIPTOR	_IOW('#', 0x07, struct fw_cdev_remove_descriptor)
-#define FW_CDEV_IOC_CREATE_ISO_CONTEXT	_IOWR('#', 0x08, struct fw_cdev_create_iso_context)
-#define FW_CDEV_IOC_QUEUE_ISO		_IOWR('#', 0x09, struct fw_cdev_queue_iso)
-#define FW_CDEV_IOC_START_ISO		_IOW('#', 0x0a, struct fw_cdev_start_iso)
-#define FW_CDEV_IOC_STOP_ISO		_IOW('#', 0x0b, struct fw_cdev_stop_iso)
+#define FW_CDEV_IOC_GET_INFO           _IOWR('#', 0x00, struct fw_cdev_get_info)
+#define FW_CDEV_IOC_SEND_REQUEST        _IOW('#', 0x01, struct fw_cdev_send_request)
+#define FW_CDEV_IOC_ALLOCATE           _IOWR('#', 0x02, struct fw_cdev_allocate)
+#define FW_CDEV_IOC_DEALLOCATE          _IOW('#', 0x03, struct fw_cdev_deallocate)
+#define FW_CDEV_IOC_SEND_RESPONSE       _IOW('#', 0x04, struct fw_cdev_send_response)
+#define FW_CDEV_IOC_INITIATE_BUS_RESET  _IOW('#', 0x05, struct fw_cdev_initiate_bus_reset)
+#define FW_CDEV_IOC_ADD_DESCRIPTOR     _IOWR('#', 0x06, struct fw_cdev_add_descriptor)
+#define FW_CDEV_IOC_REMOVE_DESCRIPTOR   _IOW('#', 0x07, struct fw_cdev_remove_descriptor)
+#define FW_CDEV_IOC_CREATE_ISO_CONTEXT _IOWR('#', 0x08, struct fw_cdev_create_iso_context)
+#define FW_CDEV_IOC_QUEUE_ISO          _IOWR('#', 0x09, struct fw_cdev_queue_iso)
+#define FW_CDEV_IOC_START_ISO           _IOW('#', 0x0a, struct fw_cdev_start_iso)
+#define FW_CDEV_IOC_STOP_ISO            _IOW('#', 0x0b, struct fw_cdev_stop_iso)
 
 /* available since kernel version 2.6.24 */
-#define FW_CDEV_IOC_GET_CYCLE_TIMER	_IOR('#', 0x0c, struct fw_cdev_get_cycle_timer)
+#define FW_CDEV_IOC_GET_CYCLE_TIMER     _IOR('#', 0x0c, struct fw_cdev_get_cycle_timer)
 
 /* available since kernel version 2.6.30 */
 #define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE       _IOWR('#', 0x0d, struct fw_cdev_allocate_iso_resource)
 #define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE      _IOW('#', 0x0e, struct fw_cdev_deallocate)
 #define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE   _IOW('#', 0x0f, struct fw_cdev_allocate_iso_resource)
 #define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE _IOW('#', 0x10, struct fw_cdev_allocate_iso_resource)
-#define FW_CDEV_IOC_GET_SPEED                    _IOR('#', 0x11, struct fw_cdev_get_speed)
+#define FW_CDEV_IOC_GET_SPEED                     _IO('#', 0x11) /* returns speed code */
 #define FW_CDEV_IOC_SEND_BROADCAST_REQUEST       _IOW('#', 0x12, struct fw_cdev_send_request)
 #define FW_CDEV_IOC_SEND_STREAM_PACKET           _IOW('#', 0x13, struct fw_cdev_send_stream_packet)
 
@@ -601,15 +601,6 @@ struct fw_cdev_allocate_iso_resource {
 	__u32 handle;
 };
 
-/**
- * struct fw_cdev_get_speed - Query maximum speed to or from this device
- * @max_speed:	Speed code; minimum of the device's link speed, the local node's
- *		link speed, and all PHY port speeds between the two links
- */
-struct fw_cdev_get_speed {
-	__u32 max_speed;
-};
-
 /**
  * struct fw_cdev_send_stream_packet - send an asynchronous stream packet
  * @generation:   Bus generation where the packet is valid
-- 
cgit v1.2.3


From de487da8ca5839d057e1f4b57ee3f387e180b800 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Tue, 10 Mar 2009 21:00:23 +0100
Subject: firewire: cdev: secure add_descriptor ioctl

The access permissions and ownership or ACL of /dev/fw* character device
files will typically be set based on the device type of the respective
nodes, as obtained by firewire-core from descriptors in the device's
configuration ROM.  An example policy is to deny write permission by
default but grant write permission to files of AV/C video and audio
devices and IIDC video devices.

The FW_CDEV_IOC_ADD_DESCRIPTOR ioctl could be used to partly subvert
such a policy:  Find a device file with relaxed permissions, use the
ioctl to add a descriptor with AV/C marker to the local node's ROM, thus
gain access to the local node's character device file.  (This is only
possible if there are udev scripts installed which actively relax
permissions for known device types and if there is a device of such a
type connected.)

Accessibility of the local node's device file is relevant to host
security if the host contains two or more IEEE 1394 link layer
controllers which are plugged into a single bus.

Therefore change the ABI to deny FW_CDEV_IOC_ADD_DESCRIPTOR if the file
belongs to a remote node.  (This change has no impact on known
implementers of the ABI:  None of them uses the ioctl yet.)

Also clarify the documentation:  The ioctl affects all local nodes, not
just one local node.

Cc: stable@kernel.org
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/fw-cdev.c    | 8 ++++++++
 include/linux/firewire-cdev.h | 5 ++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 2784f91896db..160cb27e120c 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -742,9 +742,17 @@ static void release_descriptor(struct client *client,
 static int ioctl_add_descriptor(struct client *client, void *buffer)
 {
 	struct fw_cdev_add_descriptor *request = buffer;
+	struct fw_card *card = client->device->card;
 	struct descriptor_resource *r;
 	int ret;
 
+	/* Access policy: Allow this ioctl only on local nodes' device files. */
+	spin_lock_irq(&card->lock);
+	ret = client->device->node_id != card->local_node->node_id;
+	spin_unlock_irq(&card->lock);
+	if (ret)
+		return -ENOSYS;
+
 	if (request->length > 256)
 		return -EINVAL;
 
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index de4035792f70..25bc82726ef7 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -394,6 +394,9 @@ struct fw_cdev_initiate_bus_reset {
  * If successful, the kernel adds the descriptor and writes back a handle to the
  * kernel-side object to be used for later removal of the descriptor block and
  * immediate key.
+ *
+ * This ioctl affects the configuration ROMs of all local nodes.
+ * The ioctl only succeeds on device files which represent a local node.
  */
 struct fw_cdev_add_descriptor {
 	__u32 immediate;
@@ -409,7 +412,7 @@ struct fw_cdev_add_descriptor {
  *		descriptor was added
  *
  * Remove a descriptor block and accompanying immediate key from the local
- * node's configuration ROM.
+ * nodes' configuration ROMs.
  */
 struct fw_cdev_remove_descriptor {
 	__u32 handle;
-- 
cgit v1.2.3


From 18e9b10fcdc090d3a38606958167d5923c7099b7 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Tue, 10 Mar 2009 21:02:21 +0100
Subject: firewire: cdev: add closure to async stream ioctl

This changes the as yet unreleased FW_CDEV_IOC_SEND_STREAM_PACKET ioctl
to generate an fw_cdev_event_response event just like the other two
ioctls for asynchronous request transmission do.  This way, clients get
feedback on successful or unsuccessful transmission.

This also adds input validation for length, tag, channel, sy, speed.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
 drivers/firewire/fw-cdev.c        | 46 ++++++++++++++++-----------------------
 drivers/firewire/fw-transaction.c | 42 ++++++++++++++---------------------
 drivers/firewire/fw-transaction.h |  9 ++++----
 include/linux/firewire-cdev.h     | 31 +++++++++++++-------------
 4 files changed, 56 insertions(+), 72 deletions(-)

(limited to 'include')

diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
index 95a207545eb3..7eb6594cc3e5 100644
--- a/drivers/firewire/fw-cdev.c
+++ b/drivers/firewire/fw-cdev.c
@@ -522,7 +522,8 @@ static int init_request(struct client *client,
 	struct outbound_transaction_event *e;
 	int ret;
 
-	if (request->length > 4096 || request->length > 512 << speed)
+	if (request->tcode != TCODE_STREAM_DATA &&
+	    (request->length > 4096 || request->length > 512 << speed))
 		return -EIO;
 
 	e = kmalloc(sizeof(*e) + request->length, GFP_KERNEL);
@@ -1247,36 +1248,27 @@ static int ioctl_send_broadcast_request(struct client *client, void *buffer)
 	return init_request(client, request, LOCAL_BUS | 0x3f, SCODE_100);
 }
 
-struct stream_packet {
-	struct fw_packet packet;
-	u8 data[0];
-};
-
-static void send_stream_packet_done(struct fw_packet *packet,
-				    struct fw_card *card, int status)
-{
-	kfree(container_of(packet, struct stream_packet, packet));
-}
-
 static int ioctl_send_stream_packet(struct client *client, void *buffer)
 {
-	struct fw_cdev_send_stream_packet *request = buffer;
-	struct stream_packet *p;
+	struct fw_cdev_send_stream_packet *p = buffer;
+	struct fw_cdev_send_request request;
+	int dest;
 
-	p = kmalloc(sizeof(*p) + request->size, GFP_KERNEL);
-	if (p == NULL)
-		return -ENOMEM;
+	if (p->speed > client->device->card->link_speed ||
+	    p->length > 1024 << p->speed)
+		return -EIO;
 
-	if (request->data &&
-	    copy_from_user(p->data, u64_to_uptr(request->data), request->size)) {
-		kfree(p);
-		return -EFAULT;
-	}
-	fw_send_stream_packet(client->device->card, &p->packet,
-			      request->generation, request->speed,
-			      request->channel, request->sy, request->tag,
-			      p->data, request->size, send_stream_packet_done);
-	return 0;
+	if (p->tag > 3 || p->channel > 63 || p->sy > 15)
+		return -EINVAL;
+
+	dest = fw_stream_packet_destination_id(p->tag, p->channel, p->sy);
+	request.tcode		= TCODE_STREAM_DATA;
+	request.length		= p->length;
+	request.closure		= p->closure;
+	request.data		= p->data;
+	request.generation	= p->generation;
+
+	return init_request(client, &request, dest, p->speed);
 }
 
 static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
index e3da58991960..4a9b37461c26 100644
--- a/drivers/firewire/fw-transaction.c
+++ b/drivers/firewire/fw-transaction.c
@@ -37,10 +37,6 @@
 #include "fw-topology.h"
 #include "fw-device.h"
 
-#define HEADER_TAG(tag)			((tag) << 14)
-#define HEADER_CHANNEL(ch)		((ch) << 8)
-#define HEADER_SY(sy)			((sy) << 0)
-
 #define HEADER_PRI(pri)			((pri) << 0)
 #define HEADER_TCODE(tcode)		((tcode) << 4)
 #define HEADER_RETRY(retry)		((retry) << 8)
@@ -158,6 +154,18 @@ static void fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
 {
 	int ext_tcode;
 
+	if (tcode == TCODE_STREAM_DATA) {
+		packet->header[0] =
+			HEADER_DATA_LENGTH(length) |
+			destination_id |
+			HEADER_TCODE(TCODE_STREAM_DATA);
+		packet->header_length = 4;
+		packet->payload = payload;
+		packet->payload_length = length;
+
+		goto common;
+	}
+
 	if (tcode > 0x10) {
 		ext_tcode = tcode & ~0x10;
 		tcode = TCODE_LOCK_REQUEST;
@@ -204,7 +212,7 @@ static void fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
 		packet->payload_length = 0;
 		break;
 	}
-
+ common:
 	packet->speed = speed;
 	packet->generation = generation;
 	packet->ack = 0;
@@ -246,6 +254,9 @@ static void fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
  * @param callback function to be called when the transaction is completed
  * @param callback_data pointer to arbitrary data, which will be
  *   passed to the callback
+ *
+ * In case of asynchronous stream packets i.e. TCODE_STREAM_DATA, the caller
+ * needs to synthesize @destination_id with fw_stream_packet_destination_id().
  */
 void fw_send_request(struct fw_card *card, struct fw_transaction *t, int tcode,
 		     int destination_id, int generation, int speed,
@@ -297,27 +308,6 @@ void fw_send_request(struct fw_card *card, struct fw_transaction *t, int tcode,
 }
 EXPORT_SYMBOL(fw_send_request);
 
-void fw_send_stream_packet(struct fw_card *card, struct fw_packet *p,
-		int generation, int speed, int channel, int sy, int tag,
-		void *payload, size_t length, fw_packet_callback_t callback)
-{
-	p->callback = callback;
-	p->header[0] =
-		  HEADER_DATA_LENGTH(length)
-		| HEADER_TAG(tag)
-		| HEADER_CHANNEL(channel)
-		| HEADER_TCODE(TCODE_STREAM_DATA)
-		| HEADER_SY(sy);
-	p->header_length = 4;
-	p->payload = payload;
-	p->payload_length = length;
-	p->speed = speed;
-	p->generation = generation;
-	p->ack = 0;
-
-	card->driver->send_request(card, p);
-}
-
 struct transaction_callback_data {
 	struct completion done;
 	void *payload;
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
index f90f09c05833..d4f42cecbdfa 100644
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -412,10 +412,6 @@ void fw_send_request(struct fw_card *card, struct fw_transaction *t,
 		int tcode, int destination_id, int generation, int speed,
 		unsigned long long offset, void *payload, size_t length,
 		fw_transaction_callback_t callback, void *callback_data);
-void fw_send_stream_packet(struct fw_card *card, struct fw_packet *p,
-		int generation, int speed, int channel, int sy, int tag,
-		void *payload, size_t length, fw_packet_callback_t callback);
-
 int fw_cancel_transaction(struct fw_card *card,
 			  struct fw_transaction *transaction);
 void fw_flush_transactions(struct fw_card *card);
@@ -425,6 +421,11 @@ int fw_run_transaction(struct fw_card *card, int tcode, int destination_id,
 void fw_send_phy_config(struct fw_card *card,
 			int node_id, int generation, int gap_count);
 
+static inline int fw_stream_packet_destination_id(int tag, int channel, int sy)
+{
+	return tag << 14 | channel << 8 | sy;
+}
+
 /*
  * Called by the topology code to inform the device code of node
  * activity; found, lost, or updated nodes.
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 25bc82726ef7..c6b3ca3af6df 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -606,28 +606,29 @@ struct fw_cdev_allocate_iso_resource {
 
 /**
  * struct fw_cdev_send_stream_packet - send an asynchronous stream packet
- * @generation:   Bus generation where the packet is valid
- * @speed:	  Speed code to send the packet at
- * @channel:	  Channel to send the packet on
- * @sy:		  Four-bit sy code for the packet
- * @tag:	  Two-bit tag field to use for the packet
- * @size:	  Size of the packet's data payload
- * @data:	  Userspace pointer to the payload
+ * @length:	Length of outgoing payload, in bytes
+ * @tag:	Data format tag
+ * @channel:	Isochronous channel to transmit to
+ * @sy:		Synchronization code
+ * @closure:	Passed back to userspace in the response event
+ * @data:	Userspace pointer to payload
+ * @generation:	The bus generation where packet is valid
+ * @speed:	Speed to transmit at
  *
  * The %FW_CDEV_IOC_SEND_STREAM_PACKET ioctl sends an asynchronous stream packet
- * to every device (that is listening to the specified channel) on the
- * firewire bus.  It is the applications's job to ensure
- * that the intended device(s) will be able to receive the packet at the chosen
- * transmit speed.
+ * to every device which is listening to the specified channel.  The kernel
+ * writes an &fw_cdev_event_response event which indicates success or failure of
+ * the transmission.
  */
 struct fw_cdev_send_stream_packet {
-	__u32 generation;
-	__u32 speed;
+	__u32 length;
+	__u32 tag;
 	__u32 channel;
 	__u32 sy;
-	__u32 tag;
-	__u32 size;
+	__u64 closure;
 	__u64 data;
+	__u32 generation;
+	__u32 speed;
 };
 
 #endif /* _LINUX_FIREWIRE_CDEV_H */
-- 
cgit v1.2.3


From 5393f3162d3a85317e1e22c33539905fa5258e5f Mon Sep 17 00:00:00 2001
From: Josh Stone <jistone@redhat.com>
Date: Tue, 24 Mar 2009 09:44:28 +0000
Subject: net: Add dependent headers to trace/skb.h

The tracing header needs to include definitions for the macros used and
the types referenced.  This lets automated tracing tools like SystemTap
make use of the tracepoint without any specific knowledge of its
meaning (leaving that to the user).

Signed-off-by: Josh Stone <jistone@redhat.com>
CC: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/trace/skb.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'include')

diff --git a/include/trace/skb.h b/include/trace/skb.h
index 3aa864697c09..a96610f92f69 100644
--- a/include/trace/skb.h
+++ b/include/trace/skb.h
@@ -1,6 +1,9 @@
 #ifndef _TRACE_SKB_H_
 #define _TRACE_SKB_H_
 
+#include <linux/skbuff.h>
+#include <linux/tracepoint.h>
+
 DECLARE_TRACE(kfree_skb,
 	TPPROTO(struct sk_buff *skb, void *location),
 	TPARGS(skb, location));
-- 
cgit v1.2.3


From 7a254df007b3db88bd430474030fec92e7bab22a Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:39 +0100
Subject: ide: move ide_pktcmd_tf_load() to ide-atapi.c

Then make it static and remove 'dma' argument.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c | 21 ++++++++++++++++++++-
 drivers/ide/ide-io.c    | 20 --------------------
 include/linux/ide.h     |  2 --
 3 files changed, 20 insertions(+), 23 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index e9d042dba0e0..09ae30f46070 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -456,6 +456,25 @@ next_irq:
 	return ide_started;
 }
 
+static void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	ide_task_t task;
+	u8 dma = drive->dma;
+
+	memset(&task, 0, sizeof(task));
+	task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
+			IDE_TFLAG_OUT_FEATURE | tf_flags;
+	task.tf.feature = dma;		/* Use PIO/DMA */
+	task.tf.lbam    = bcount & 0xff;
+	task.tf.lbah    = (bcount >> 8) & 0xff;
+
+	ide_tf_dump(drive->name, &task.tf);
+	hwif->tp_ops->set_irq(hwif, 1);
+	SELECT_MASK(drive, 0);
+	hwif->tp_ops->tf_load(drive, &task);
+}
+
 static u8 ide_read_ireason(ide_drive_t *drive)
 {
 	ide_task_t task;
@@ -629,7 +648,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
 						       : WAIT_TAPE_CMD;
 	}
 
-	ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma);
+	ide_pktcmd_tf_load(drive, tf_flags, bcount);
 
 	/* Issue the packet command */
 	if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index a9a6c208288a..4344b6119d77 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1192,26 +1192,6 @@ void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq)
 }
 EXPORT_SYMBOL(ide_do_drive_cmd);
 
-void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	ide_task_t task;
-
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
-			IDE_TFLAG_OUT_FEATURE | tf_flags;
-	task.tf.feature = dma;		/* Use PIO/DMA */
-	task.tf.lbam    = bcount & 0xff;
-	task.tf.lbah    = (bcount >> 8) & 0xff;
-
-	ide_tf_dump(drive->name, &task.tf);
-	hwif->tp_ops->set_irq(hwif, 1);
-	SELECT_MASK(drive, 0);
-	hwif->tp_ops->tf_load(drive, &task);
-}
-
-EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load);
-
 void ide_pad_transfer(ide_drive_t *drive, int write, int len)
 {
 	ide_hwif_t *hwif = drive->hwif;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 25087aead657..e7b787de5286 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1202,8 +1202,6 @@ void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *);
 
 extern int drive_is_ready(ide_drive_t *);
 
-void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
-
 int ide_check_atapi_device(ide_drive_t *, const char *);
 
 void ide_init_pc(struct ide_atapi_pc *);
-- 
cgit v1.2.3


From 7ed5b157d9dff55bf477b4c8b4708d5d45476677 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:41 +0100
Subject: ide: add ide_for_each_present_dev() iterator

* Add ide_for_each_present_dev() iterator and convert IDE code to use it.

* Do some drive-by CodingStyle fixups in ide-acpi.c while at it.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-acpi.c  | 30 ++++++++++--------------------
 drivers/ide/ide-iops.c  |  5 ++---
 drivers/ide/ide-probe.c | 38 +++++++++++++-------------------------
 include/linux/ide.h     |  4 ++++
 4 files changed, 29 insertions(+), 48 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index a3bebba18425..8d6d31fcbfba 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -608,17 +608,17 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
 		DEBPRINT("no ACPI data for %s\n", hwif->name);
 		return;
 	}
+
 	/* channel first and then drives for power on and verse versa for power off */
 	if (on)
 		acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
 
-	ide_port_for_each_dev(i, drive, hwif) {
-		if (drive->acpidata->obj_handle &&
-		    (drive->dev_flags & IDE_DFLAG_PRESENT)) {
+	ide_port_for_each_present_dev(i, drive, hwif) {
+		if (drive->acpidata->obj_handle)
 			acpi_bus_set_power(drive->acpidata->obj_handle,
-				on? ACPI_STATE_D0: ACPI_STATE_D3);
-		}
+					   on ? ACPI_STATE_D0 : ACPI_STATE_D3);
 	}
+
 	if (!on)
 		acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3);
 }
@@ -667,12 +667,9 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
 	hwif->devices[1]->acpidata = &hwif->acpidata->slave;
 
 	/* get _ADR info for each device */
-	ide_port_for_each_dev(i, drive, hwif) {
+	ide_port_for_each_present_dev(i, drive, hwif) {
 		acpi_handle dev_handle;
 
-		if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-			continue;
-
 		DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
 			 drive->name, hwif->channel, drive->dn & 1);
 
@@ -685,13 +682,8 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
 		drive->acpidata->obj_handle = dev_handle;
 	}
 
-	/*
-	 * Send IDENTIFY for each drive
-	 */
-	ide_port_for_each_dev(i, drive, hwif) {
-		if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-			continue;
-
+	/* send IDENTIFY for each device */
+	ide_port_for_each_present_dev(i, drive, hwif) {
 		err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff);
 		if (err)
 			DEBPRINT("identify device %s failed (%d)\n",
@@ -711,9 +703,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
 	ide_acpi_get_timing(hwif);
 	ide_acpi_push_timing(hwif);
 
-	ide_port_for_each_dev(i, drive, hwif) {
-		if (drive->dev_flags & IDE_DFLAG_PRESENT)
-			/* Execute ACPI startup code */
-			ide_acpi_exec_tfs(drive);
+	ide_port_for_each_present_dev(i, drive, hwif) {
+		ide_acpi_exec_tfs(drive);
 	}
 }
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index b1892bd95c6f..02fed32a4047 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -1103,9 +1103,8 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 
 		prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
 		timeout = jiffies;
-		ide_port_for_each_dev(i, tdrive, hwif) {
-			if (tdrive->dev_flags & IDE_DFLAG_PRESENT &&
-			    tdrive->dev_flags & IDE_DFLAG_PARKED &&
+		ide_port_for_each_present_dev(i, tdrive, hwif) {
+			if ((tdrive->dev_flags & IDE_DFLAG_PARKED) &&
 			    time_after(tdrive->sleep, timeout))
 				timeout = tdrive->sleep;
 		}
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 5deb7e717333..eb0a38cd83ce 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -825,22 +825,18 @@ static void ide_port_tune_devices(ide_hwif_t *hwif)
 	ide_drive_t *drive;
 	int i;
 
-	ide_port_for_each_dev(i, drive, hwif) {
-		if (drive->dev_flags & IDE_DFLAG_PRESENT) {
-			if (port_ops && port_ops->quirkproc)
-				port_ops->quirkproc(drive);
-		}
+	ide_port_for_each_present_dev(i, drive, hwif) {
+		if (port_ops && port_ops->quirkproc)
+			port_ops->quirkproc(drive);
 	}
 
-	ide_port_for_each_dev(i, drive, hwif) {
-		if (drive->dev_flags & IDE_DFLAG_PRESENT) {
-			ide_set_max_pio(drive);
+	ide_port_for_each_present_dev(i, drive, hwif) {
+		ide_set_max_pio(drive);
 
-			drive->dev_flags |= IDE_DFLAG_NICE1;
+		drive->dev_flags |= IDE_DFLAG_NICE1;
 
-			if (hwif->dma_ops)
-				ide_set_dma(drive);
-		}
+		if (hwif->dma_ops)
+			ide_set_dma(drive);
 	}
 }
 
@@ -911,10 +907,7 @@ static int ide_port_setup_devices(ide_hwif_t *hwif)
 	int i, j = 0;
 
 	mutex_lock(&ide_cfg_mtx);
-	ide_port_for_each_dev(i, drive, hwif) {
-		if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-			continue;
-
+	ide_port_for_each_present_dev(i, drive, hwif) {
 		if (ide_init_queue(drive)) {
 			printk(KERN_ERR "ide: failed to init %s\n",
 					drive->name);
@@ -1139,13 +1132,10 @@ static void hwif_register_devices(ide_hwif_t *hwif)
 	ide_drive_t *drive;
 	unsigned int i;
 
-	ide_port_for_each_dev(i, drive, hwif) {
+	ide_port_for_each_present_dev(i, drive, hwif) {
 		struct device *dev = &drive->gendev;
 		int ret;
 
-		if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-			continue;
-
 		dev_set_name(dev, "%u.%u", hwif->index, i);
 		dev->parent = &hwif->gendev;
 		dev->bus = &ide_bus_type;
@@ -1610,11 +1600,9 @@ static void __ide_port_unregister_devices(ide_hwif_t *hwif)
 	ide_drive_t *drive;
 	int i;
 
-	ide_port_for_each_dev(i, drive, hwif) {
-		if (drive->dev_flags & IDE_DFLAG_PRESENT) {
-			device_unregister(&drive->gendev);
-			wait_for_completion(&drive->gendev_rel_comp);
-		}
+	ide_port_for_each_present_dev(i, drive, hwif) {
+		device_unregister(&drive->gendev);
+		wait_for_completion(&drive->gendev_rel_comp);
 	}
 }
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index e7b787de5286..7ed395b4b891 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1609,6 +1609,10 @@ static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
 #define ide_port_for_each_dev(i, dev, port) \
 	for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
 
+#define ide_port_for_each_present_dev(i, dev, port) \
+	for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \
+		if ((dev)->dev_flags & IDE_DFLAG_PRESENT)
+
 #define ide_host_for_each_port(i, port, host) \
 	for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)
 
-- 
cgit v1.2.3


From 8b803bd184e3f6892284d4b50801b9ec85cd9b96 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:41 +0100
Subject: ide: sanitize ACPI initialization

* ide_acpi_init() -> ide_acpi_init_port()

* ide_acpi_blacklist() -> ide_acpi_init()

* Call ide_acpi_init() only once (do it during IDE core
  initialization) and cleanup the function accordingly.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-acpi.c  | 12 +++---------
 drivers/ide/ide-probe.c |  2 +-
 drivers/ide/ide.c       |  2 ++
 include/linux/ide.h     |  6 ++++--
 4 files changed, 10 insertions(+), 12 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 8d6d31fcbfba..ba5932d7b1bb 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -89,12 +89,8 @@ static const struct dmi_system_id ide_acpi_dmi_table[] = {
 	{ }	/* terminate list */
 };
 
-static int ide_acpi_blacklist(void)
+int ide_acpi_init(void)
 {
-	static int done;
-	if (done)
-		return 0;
-	done = 1;
 	dmi_check_system(ide_acpi_dmi_table);
 	return 0;
 }
@@ -624,7 +620,7 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
 }
 
 /**
- * ide_acpi_init - initialize the ACPI link for an IDE interface
+ * ide_acpi_init_port - initialize the ACPI link for an IDE interface
  * @hwif: target IDE interface (channel)
  *
  * The ACPI spec is not quite clear when the drive identify buffer
@@ -634,10 +630,8 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
  * So we get the information during startup; but this means that
  * any changes during run-time will be lost after resume.
  */
-void ide_acpi_init(ide_hwif_t *hwif)
+void ide_acpi_init_port(ide_hwif_t *hwif)
 {
-	ide_acpi_blacklist();
-
 	hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL);
 	if (!hwif->acpidata)
 		return;
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index eb0a38cd83ce..a51ad2bd62b4 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1543,7 +1543,7 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
 
 		j++;
 
-		ide_acpi_init(hwif);
+		ide_acpi_init_port(hwif);
 
 		if (hwif->present)
 			ide_acpi_port_init_devices(hwif);
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 0920e3b0c962..c779aa24dbe6 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -527,6 +527,8 @@ static int __init ide_init(void)
 		goto out_port_class;
 	}
 
+	ide_acpi_init();
+
 	proc_ide_create();
 
 	return 0;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 7ed395b4b891..6bb104f4e341 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1484,17 +1484,19 @@ static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
 #endif /* CONFIG_BLK_DEV_IDEDMA */
 
 #ifdef CONFIG_BLK_DEV_IDEACPI
+int ide_acpi_init(void);
 extern int ide_acpi_exec_tfs(ide_drive_t *drive);
 extern void ide_acpi_get_timing(ide_hwif_t *hwif);
 extern void ide_acpi_push_timing(ide_hwif_t *hwif);
-extern void ide_acpi_init(ide_hwif_t *hwif);
+void ide_acpi_init_port(ide_hwif_t *);
 void ide_acpi_port_init_devices(ide_hwif_t *);
 extern void ide_acpi_set_state(ide_hwif_t *hwif, int on);
 #else
+static inline int ide_acpi_init(void) { return 0; }
 static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; }
 static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; }
 static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; }
-static inline void ide_acpi_init(ide_hwif_t *hwif) { ; }
+static inline void ide_acpi_init_port(ide_hwif_t *hwif) { ; }
 static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; }
 static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
 #endif
-- 
cgit v1.2.3


From b6a45a0b1e9a358b81201659cf87b023e3ec73e0 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:43 +0100
Subject: ide: move drive_is_ready() to ide-io.c

Move drive_is_ready() to ide-io.c, then make it static.

Also make some minor CodingStyle fixups while at it.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-io.c   | 23 +++++++++++++++++++++++
 drivers/ide/ide-iops.c | 25 -------------------------
 include/linux/ide.h    |  2 --
 3 files changed, 23 insertions(+), 27 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index d90cf5d08142..835cf646bb07 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -887,6 +887,29 @@ static void ide_plug_device(ide_drive_t *drive)
 	spin_unlock_irqrestore(q->queue_lock, flags);
 }
 
+static int drive_is_ready(ide_drive_t *drive)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	u8 stat = 0;
+
+	if (drive->waiting_for_dma)
+		return hwif->dma_ops->dma_test_irq(drive);
+
+	if (hwif->io_ports.ctl_addr &&
+	    (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0)
+		stat = hwif->tp_ops->read_altstatus(hwif);
+	else
+		/* Note: this may clear a pending IRQ!! */
+		stat = hwif->tp_ops->read_status(hwif);
+
+	if (stat & ATA_BUSY)
+		/* drive busy: definitely not interrupting */
+		return 0;
+
+	/* drive ready: *might* be interrupting */
+	return 1;
+}
+
 /**
  *	ide_timer_expiry	-	handle lack of an IDE interrupt
  *	@data: timer callback magic (hwif)
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index cd1f2e464c4b..ee9c60342787 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -438,31 +438,6 @@ void ide_fixstring (u8 *s, const int bytecount, const int byteswap)
 
 EXPORT_SYMBOL(ide_fixstring);
 
-int drive_is_ready (ide_drive_t *drive)
-{
-	ide_hwif_t *hwif	= drive->hwif;
-	u8 stat			= 0;
-
-	if (drive->waiting_for_dma)
-		return hwif->dma_ops->dma_test_irq(drive);
-
-	if (hwif->io_ports.ctl_addr &&
-	    (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0)
-		stat = hwif->tp_ops->read_altstatus(hwif);
-	else
-		/* Note: this may clear a pending IRQ!! */
-		stat = hwif->tp_ops->read_status(hwif);
-
-	if (stat & ATA_BUSY)
-		/* drive busy:  definitely not interrupting */
-		return 0;
-
-	/* drive ready: *might* be interrupting */
-	return 1;
-}
-
-EXPORT_SYMBOL(drive_is_ready);
-
 /*
  * This routine busy-waits for the drive status to be not "busy".
  * It then checks the status for all of the "good" bits and none
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 6bb104f4e341..2e95adeedff4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1200,8 +1200,6 @@ void SELECT_MASK(ide_drive_t *, int);
 u8 ide_read_error(ide_drive_t *);
 void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *);
 
-extern int drive_is_ready(ide_drive_t *);
-
 int ide_check_atapi_device(ide_drive_t *, const char *);
 
 void ide_init_pc(struct ide_atapi_pc *);
-- 
cgit v1.2.3


From 65ca5377322c7543163066f373ae9e6b0ad8de8a Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:43 +0100
Subject: ide: move ide_dma_timeout_retry() to ide-dma.c

Move ide_dma_timeout_retry() to ide-dma.c and add static inline
version for CONFIG_BLK_DEV_IDEDMA=n.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-dma.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++
 drivers/ide/ide-io.c  | 57 ---------------------------------------------------
 include/linux/ide.h   |  2 ++
 3 files changed, 59 insertions(+), 57 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 059c90bb5ad2..a878f4734f81 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -470,6 +470,63 @@ void ide_dma_timeout(ide_drive_t *drive)
 }
 EXPORT_SYMBOL_GPL(ide_dma_timeout);
 
+/*
+ * un-busy the port etc, and clear any pending DMA status. we want to
+ * retry the current request in pio mode instead of risking tossing it
+ * all away
+ */
+ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	struct request *rq;
+	ide_startstop_t ret = ide_stopped;
+
+	/*
+	 * end current dma transaction
+	 */
+
+	if (error < 0) {
+		printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
+		(void)hwif->dma_ops->dma_end(drive);
+		ret = ide_error(drive, "dma timeout error",
+				hwif->tp_ops->read_status(hwif));
+	} else {
+		printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
+		hwif->dma_ops->dma_timeout(drive);
+	}
+
+	/*
+	 * disable dma for now, but remember that we did so because of
+	 * a timeout -- we'll reenable after we finish this next request
+	 * (or rather the first chunk of it) in pio.
+	 */
+	drive->dev_flags |= IDE_DFLAG_DMA_PIO_RETRY;
+	drive->retry_pio++;
+	ide_dma_off_quietly(drive);
+
+	/*
+	 * un-busy drive etc and make sure request is sane
+	 */
+
+	rq = hwif->rq;
+	if (!rq)
+		goto out;
+
+	hwif->rq = NULL;
+
+	rq->errors = 0;
+
+	if (!rq->bio)
+		goto out;
+
+	rq->sector = rq->bio->bi_sector;
+	rq->current_nr_sectors = bio_iovec(rq->bio)->bv_len >> 9;
+	rq->hard_cur_sectors = rq->current_nr_sectors;
+	rq->buffer = bio_data(rq->bio);
+out:
+	return ret;
+}
+
 void ide_release_dma_engine(ide_hwif_t *hwif)
 {
 	if (hwif->dmatable_cpu) {
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 835cf646bb07..557b15700ea2 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -819,63 +819,6 @@ plug_device_2:
 		blk_plug_device(q);
 }
 
-/*
- * un-busy the port etc, and clear any pending DMA status. we want to
- * retry the current request in pio mode instead of risking tossing it
- * all away
- */
-static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	struct request *rq;
-	ide_startstop_t ret = ide_stopped;
-
-	/*
-	 * end current dma transaction
-	 */
-
-	if (error < 0) {
-		printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
-		(void)hwif->dma_ops->dma_end(drive);
-		ret = ide_error(drive, "dma timeout error",
-				hwif->tp_ops->read_status(hwif));
-	} else {
-		printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
-		hwif->dma_ops->dma_timeout(drive);
-	}
-
-	/*
-	 * disable dma for now, but remember that we did so because of
-	 * a timeout -- we'll reenable after we finish this next request
-	 * (or rather the first chunk of it) in pio.
-	 */
-	drive->dev_flags |= IDE_DFLAG_DMA_PIO_RETRY;
-	drive->retry_pio++;
-	ide_dma_off_quietly(drive);
-
-	/*
-	 * un-busy drive etc and make sure request is sane
-	 */
-
-	rq = hwif->rq;
-	if (!rq)
-		goto out;
-
-	hwif->rq = NULL;
-
-	rq->errors = 0;
-
-	if (!rq->bio)
-		goto out;
-
-	rq->sector = rq->bio->bi_sector;
-	rq->current_nr_sectors = bio_iovec(rq->bio)->bv_len >> 9;
-	rq->hard_cur_sectors = rq->current_nr_sectors;
-	rq->buffer = bio_data(rq->bio);
-out:
-	return ret;
-}
-
 static void ide_plug_device(ide_drive_t *drive)
 {
 	struct request_queue *q = drive->queue;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 2e95adeedff4..d0065a90452b 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1467,6 +1467,7 @@ static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
 
 void ide_dma_lost_irq(ide_drive_t *);
 void ide_dma_timeout(ide_drive_t *);
+ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int);
 
 #else
 static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; }
@@ -1478,6 +1479,7 @@ static inline void ide_dma_on(ide_drive_t *drive) { ; }
 static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
 static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
 static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
+static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
 static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
 #endif /* CONFIG_BLK_DEV_IDEDMA */
 
-- 
cgit v1.2.3


From 1866082339597930c5b77aad8de34ab4fbb5724f Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:44 +0100
Subject: ide: remove ide_do_drive_cmd()

* Use elv_add_request() instead of __elv_add_request() in ide_do_drive_cmd().

* ide_do_drive_cmd() is used only in ide-{atapi,cd}.c so inline it there.

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c |  5 ++++-
 drivers/ide/ide-cd.c    |  4 +++-
 drivers/ide/ide-io.c    | 28 ----------------------------
 include/linux/ide.h     |  2 --
 4 files changed, 7 insertions(+), 32 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 09ae30f46070..3044c51c06a5 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -149,7 +149,10 @@ static void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk,
 	memcpy(rq->cmd, pc->c, 12);
 	if (drive->media == ide_tape)
 		rq->cmd[13] = REQ_IDETAPE_PC1;
-	ide_do_drive_cmd(drive, rq);
+
+	drive->hwif->rq = NULL;
+
+	elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
 }
 
 /*
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index ddfbea41d296..2177cd11664c 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -242,7 +242,9 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
 		ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x\n",
 			      failed_command->cmd[0]);
 
-	ide_do_drive_cmd(drive, rq);
+	drive->hwif->rq = NULL;
+
+	elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
 }
 
 static void cdrom_end_request(ide_drive_t *drive, int uptodate)
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 557b15700ea2..56be3375bee4 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1129,34 +1129,6 @@ out_early:
 }
 EXPORT_SYMBOL_GPL(ide_intr);
 
-/**
- *	ide_do_drive_cmd	-	issue IDE special command
- *	@drive: device to issue command
- *	@rq: request to issue
- *
- *	This function issues a special IDE device request
- *	onto the request queue.
- *
- *	the rq is queued at the head of the request queue, displacing
- *	the currently-being-processed request and this function
- *	returns immediately without waiting for the new rq to be
- *	completed.  This is VERY DANGEROUS, and is intended for
- *	careful use by the ATAPI tape/cdrom driver code.
- */
-
-void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq)
-{
-	struct request_queue *q = drive->queue;
-	unsigned long flags;
-
-	drive->hwif->rq = NULL;
-
-	spin_lock_irqsave(q->queue_lock, flags);
-	__elv_add_request(q, rq, ELEVATOR_INSERT_FRONT, 0);
-	spin_unlock_irqrestore(q->queue_lock, flags);
-}
-EXPORT_SYMBOL(ide_do_drive_cmd);
-
 void ide_pad_transfer(ide_drive_t *drive, int write, int len)
 {
 	ide_hwif_t *hwif = drive->hwif;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index d0065a90452b..8fadffe53cde 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1174,8 +1174,6 @@ extern ide_startstop_t ide_do_reset (ide_drive_t *);
 extern int ide_devset_execute(ide_drive_t *drive,
 			      const struct ide_devset *setting, int arg);
 
-extern void ide_do_drive_cmd(ide_drive_t *, struct request *);
-
 extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
 
 void ide_tf_dump(const char *, struct ide_taskfile *);
-- 
cgit v1.2.3


From c4e66c36cce3f23d68013c4112013123ffe80bdb Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:44 +0100
Subject: ide: move ide_do_park_unpark() to ide-park.c

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-io.c   | 24 ------------------------
 drivers/ide/ide-park.c | 25 +++++++++++++++++++++++++
 include/linux/ide.h    |  2 ++
 3 files changed, 27 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index c37883ae2662..16e47989fcfd 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -527,30 +527,6 @@ static ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
 	return ide_stopped;
 }
 
-static ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
-{
-	ide_task_t task;
-	struct ide_taskfile *tf = &task.tf;
-
-	memset(&task, 0, sizeof(task));
-	if (rq->cmd[0] == REQ_PARK_HEADS) {
-		drive->sleep = *(unsigned long *)rq->special;
-		drive->dev_flags |= IDE_DFLAG_SLEEPING;
-		tf->command = ATA_CMD_IDLEIMMEDIATE;
-		tf->feature = 0x44;
-		tf->lbal = 0x4c;
-		tf->lbam = 0x4e;
-		tf->lbah = 0x55;
-		task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
-	} else		/* cmd == REQ_UNPARK_HEADS */
-		tf->command = ATA_CMD_CHK_POWER;
-
-	task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	task.rq = rq;
-	drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
-	return do_rw_taskfile(drive, &task);
-}
-
 static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq)
 {
 	u8 cmd = rq->cmd[0];
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
index c875a957596c..f30e52152fcb 100644
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -1,5 +1,6 @@
 #include <linux/kernel.h>
 #include <linux/ide.h>
+#include <linux/hdreg.h>
 #include <linux/jiffies.h>
 #include <linux/blkdev.h>
 
@@ -60,6 +61,30 @@ out:
 	return;
 }
 
+ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
+{
+	ide_task_t task;
+	struct ide_taskfile *tf = &task.tf;
+
+	memset(&task, 0, sizeof(task));
+	if (rq->cmd[0] == REQ_PARK_HEADS) {
+		drive->sleep = *(unsigned long *)rq->special;
+		drive->dev_flags |= IDE_DFLAG_SLEEPING;
+		tf->command = ATA_CMD_IDLEIMMEDIATE;
+		tf->feature = 0x44;
+		tf->lbal = 0x4c;
+		tf->lbam = 0x4e;
+		tf->lbah = 0x55;
+		task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
+	} else		/* cmd == REQ_UNPARK_HEADS */
+		tf->command = ATA_CMD_CHK_POWER;
+
+	task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	task.rq = rq;
+	drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
+	return do_rw_taskfile(drive, &task);
+}
+
 ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
 		      char *buf)
 {
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 8fadffe53cde..110d26359897 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1169,6 +1169,8 @@ int ide_busy_sleep(ide_hwif_t *, unsigned long, int);
 
 int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
 
+ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *);
+
 extern ide_startstop_t ide_do_reset (ide_drive_t *);
 
 extern int ide_devset_execute(ide_drive_t *drive,
-- 
cgit v1.2.3


From 11938c929022bb92b1a42f5e1289524a1e465dc0 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:44 +0100
Subject: ide: move device settings code to ide-devsets.c

Remove stale comment from ide.c while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/Makefile      |   3 +-
 drivers/ide/ide-devsets.c | 190 ++++++++++++++++++++++++++++++++++++++++++++++
 drivers/ide/ide-io.c      |  37 ---------
 drivers/ide/ide.c         | 154 -------------------------------------
 include/linux/ide.h       |   1 +
 5 files changed, 193 insertions(+), 192 deletions(-)
 create mode 100644 drivers/ide/ide-devsets.c

(limited to 'include')

diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index 1c326d94aa6d..83a970ee4bfe 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -5,7 +5,8 @@
 EXTRA_CFLAGS				+= -Idrivers/ide
 
 ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \
-	      ide-taskfile.o ide-pm.o ide-park.o ide-pio-blacklist.o ide-sysfs.o
+	      ide-taskfile.o ide-pm.o ide-park.o ide-pio-blacklist.o \
+	      ide-sysfs.o ide-devsets.o
 
 # core IDE code
 ide-core-$(CONFIG_IDE_TIMINGS)		+= ide-timings.o
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
new file mode 100644
index 000000000000..7c3953414d47
--- /dev/null
+++ b/drivers/ide/ide-devsets.c
@@ -0,0 +1,190 @@
+
+#include <linux/kernel.h>
+#include <linux/ide.h>
+
+DEFINE_MUTEX(ide_setting_mtx);
+
+ide_devset_get(io_32bit, io_32bit);
+
+static int set_io_32bit(ide_drive_t *drive, int arg)
+{
+	if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
+		return -EPERM;
+
+	if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
+		return -EINVAL;
+
+	drive->io_32bit = arg;
+
+	return 0;
+}
+
+ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
+
+static int set_ksettings(ide_drive_t *drive, int arg)
+{
+	if (arg < 0 || arg > 1)
+		return -EINVAL;
+
+	if (arg)
+		drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
+	else
+		drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
+
+	return 0;
+}
+
+ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
+
+static int set_using_dma(ide_drive_t *drive, int arg)
+{
+#ifdef CONFIG_BLK_DEV_IDEDMA
+	int err = -EPERM;
+
+	if (arg < 0 || arg > 1)
+		return -EINVAL;
+
+	if (ata_id_has_dma(drive->id) == 0)
+		goto out;
+
+	if (drive->hwif->dma_ops == NULL)
+		goto out;
+
+	err = 0;
+
+	if (arg) {
+		if (ide_set_dma(drive))
+			err = -EIO;
+	} else
+		ide_dma_off(drive);
+
+out:
+	return err;
+#else
+	if (arg < 0 || arg > 1)
+		return -EINVAL;
+
+	return -EPERM;
+#endif
+}
+
+/*
+ * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
+ */
+static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
+{
+	switch (req_pio) {
+	case 202:
+	case 201:
+	case 200:
+	case 102:
+	case 101:
+	case 100:
+		return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
+	case 9:
+	case 8:
+		return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
+	case 7:
+	case 6:
+		return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
+	default:
+		return 0;
+	}
+}
+
+static int set_pio_mode(ide_drive_t *drive, int arg)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	const struct ide_port_ops *port_ops = hwif->port_ops;
+
+	if (arg < 0 || arg > 255)
+		return -EINVAL;
+
+	if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
+	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
+		return -ENOSYS;
+
+	if (set_pio_mode_abuse(drive->hwif, arg)) {
+		if (arg == 8 || arg == 9) {
+			unsigned long flags;
+
+			/* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
+			spin_lock_irqsave(&hwif->lock, flags);
+			port_ops->set_pio_mode(drive, arg);
+			spin_unlock_irqrestore(&hwif->lock, flags);
+		} else
+			port_ops->set_pio_mode(drive, arg);
+	} else {
+		int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
+
+		ide_set_pio(drive, arg);
+
+		if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
+			if (keep_dma)
+				ide_dma_on(drive);
+		}
+	}
+
+	return 0;
+}
+
+ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
+
+static int set_unmaskirq(ide_drive_t *drive, int arg)
+{
+	if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
+		return -EPERM;
+
+	if (arg < 0 || arg > 1)
+		return -EINVAL;
+
+	if (arg)
+		drive->dev_flags |= IDE_DFLAG_UNMASK;
+	else
+		drive->dev_flags &= ~IDE_DFLAG_UNMASK;
+
+	return 0;
+}
+
+ide_ext_devset_rw_sync(io_32bit, io_32bit);
+ide_ext_devset_rw_sync(keepsettings, ksettings);
+ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
+ide_ext_devset_rw_sync(using_dma, using_dma);
+__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
+
+int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
+		       int arg)
+{
+	struct request_queue *q = drive->queue;
+	struct request *rq;
+	int ret = 0;
+
+	if (!(setting->flags & DS_SYNC))
+		return setting->set(drive, arg);
+
+	rq = blk_get_request(q, READ, __GFP_WAIT);
+	rq->cmd_type = REQ_TYPE_SPECIAL;
+	rq->cmd_len = 5;
+	rq->cmd[0] = REQ_DEVSET_EXEC;
+	*(int *)&rq->cmd[1] = arg;
+	rq->special = setting->set;
+
+	if (blk_execute_rq(q, NULL, rq, 0))
+		ret = rq->errors;
+	blk_put_request(rq);
+
+	return ret;
+}
+
+ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
+{
+	int err, (*setfunc)(ide_drive_t *, int) = rq->special;
+
+	err = setfunc(drive, *(int *)&rq->cmd[1]);
+	if (err)
+		rq->errors = err;
+	else
+		err = 1;
+	ide_end_request(drive, err, 0);
+	return ide_stopped;
+}
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 16e47989fcfd..74d1a3e68252 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -490,43 +490,6 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
  	return ide_stopped;
 }
 
-int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
-		       int arg)
-{
-	struct request_queue *q = drive->queue;
-	struct request *rq;
-	int ret = 0;
-
-	if (!(setting->flags & DS_SYNC))
-		return setting->set(drive, arg);
-
-	rq = blk_get_request(q, READ, __GFP_WAIT);
-	rq->cmd_type = REQ_TYPE_SPECIAL;
-	rq->cmd_len = 5;
-	rq->cmd[0] = REQ_DEVSET_EXEC;
-	*(int *)&rq->cmd[1] = arg;
-	rq->special = setting->set;
-
-	if (blk_execute_rq(q, NULL, rq, 0))
-		ret = rq->errors;
-	blk_put_request(rq);
-
-	return ret;
-}
-
-static ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
-{
-	int err, (*setfunc)(ide_drive_t *, int) = rq->special;
-
-	err = setfunc(drive, *(int *)&rq->cmd[1]);
-	if (err)
-		rq->errors = err;
-	else
-		err = 1;
-	ide_end_request(drive, err, 0);
-	return ide_stopped;
-}
-
 static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq)
 {
 	u8 cmd = rq->cmd[0];
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index c779aa24dbe6..92c9b90931e7 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -62,160 +62,6 @@
 
 struct class *ide_port_class;
 
-/*
- *	Locks for IDE setting functionality
- */
-
-DEFINE_MUTEX(ide_setting_mtx);
-
-ide_devset_get(io_32bit, io_32bit);
-
-static int set_io_32bit(ide_drive_t *drive, int arg)
-{
-	if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
-		return -EPERM;
-
-	if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
-		return -EINVAL;
-
-	drive->io_32bit = arg;
-
-	return 0;
-}
-
-ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
-
-static int set_ksettings(ide_drive_t *drive, int arg)
-{
-	if (arg < 0 || arg > 1)
-		return -EINVAL;
-
-	if (arg)
-		drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
-	else
-		drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
-
-	return 0;
-}
-
-ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
-
-static int set_using_dma(ide_drive_t *drive, int arg)
-{
-#ifdef CONFIG_BLK_DEV_IDEDMA
-	int err = -EPERM;
-
-	if (arg < 0 || arg > 1)
-		return -EINVAL;
-
-	if (ata_id_has_dma(drive->id) == 0)
-		goto out;
-
-	if (drive->hwif->dma_ops == NULL)
-		goto out;
-
-	err = 0;
-
-	if (arg) {
-		if (ide_set_dma(drive))
-			err = -EIO;
-	} else
-		ide_dma_off(drive);
-
-out:
-	return err;
-#else
-	if (arg < 0 || arg > 1)
-		return -EINVAL;
-
-	return -EPERM;
-#endif
-}
-
-/*
- * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
- */
-static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
-{
-	switch (req_pio) {
-	case 202:
-	case 201:
-	case 200:
-	case 102:
-	case 101:
-	case 100:
-		return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
-	case 9:
-	case 8:
-		return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
-	case 7:
-	case 6:
-		return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
-	default:
-		return 0;
-	}
-}
-
-static int set_pio_mode(ide_drive_t *drive, int arg)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-
-	if (arg < 0 || arg > 255)
-		return -EINVAL;
-
-	if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
-	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
-		return -ENOSYS;
-
-	if (set_pio_mode_abuse(drive->hwif, arg)) {
-		if (arg == 8 || arg == 9) {
-			unsigned long flags;
-
-			/* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
-			spin_lock_irqsave(&hwif->lock, flags);
-			port_ops->set_pio_mode(drive, arg);
-			spin_unlock_irqrestore(&hwif->lock, flags);
-		} else
-			port_ops->set_pio_mode(drive, arg);
-	} else {
-		int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
-
-		ide_set_pio(drive, arg);
-
-		if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
-			if (keep_dma)
-				ide_dma_on(drive);
-		}
-	}
-
-	return 0;
-}
-
-ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
-
-static int set_unmaskirq(ide_drive_t *drive, int arg)
-{
-	if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
-		return -EPERM;
-
-	if (arg < 0 || arg > 1)
-		return -EINVAL;
-
-	if (arg)
-		drive->dev_flags |= IDE_DFLAG_UNMASK;
-	else
-		drive->dev_flags &= ~IDE_DFLAG_UNMASK;
-
-	return 0;
-}
-
-ide_ext_devset_rw_sync(io_32bit, io_32bit);
-ide_ext_devset_rw_sync(keepsettings, ksettings);
-ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
-ide_ext_devset_rw_sync(using_dma, using_dma);
-__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
-
 /**
  * ide_device_get	-	get an additional reference to a ide_drive_t
  * @drive:	device to get a reference to
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 110d26359897..eca5082c3437 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1170,6 +1170,7 @@ int ide_busy_sleep(ide_hwif_t *, unsigned long, int);
 int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
 
 ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *);
+ide_startstop_t ide_do_devset(ide_drive_t *, struct request *);
 
 extern ide_startstop_t ide_do_reset (ide_drive_t *);
 
-- 
cgit v1.2.3


From 7eeaaaa52285d5e6cb79f515e99c591dcb9d04fe Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:46 +0100
Subject: ide: move xfer mode tuning code to ide-xfer-mode.c

* Move xfer mode tuning code to ide-xfer-mode.c.

* Add CONFIG_IDE_XFER_MODE config option to be selected by host drivers
  that support xfer mode tuning.

* Add CONFIG_IDE_XFER_MODE=n static inline versions of ide_set_pio()
  and ide_set_xfer_rate().

* Make IDE_TIMINGS and BLK_DEV_IDEDMA config options select IDE_XFER_MODE,
  also add explicit selects for few host drivers that need it.

* Build/link ide-xfer-mode.o and ide-pio-blacklist.o (it is needed only
  by ide-xfer-mode.o) only if CONFIG_IDE_XFER_MODE=y.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/Kconfig         |   8 ++
 drivers/ide/Makefile        |   4 +-
 drivers/ide/ide-lib.c       | 240 ------------------------------------------
 drivers/ide/ide-xfer-mode.c | 246 ++++++++++++++++++++++++++++++++++++++++++++
 include/linux/ide.h         |  12 ++-
 5 files changed, 263 insertions(+), 247 deletions(-)
 create mode 100644 drivers/ide/ide-xfer-mode.c

(limited to 'include')

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 5ea3bfad172a..640c99207242 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -56,8 +56,12 @@ if IDE
 
 comment "Please see Documentation/ide/ide.txt for help/info on IDE drives"
 
+config IDE_XFER_MODE
+	bool
+
 config IDE_TIMINGS
 	bool
+	select IDE_XFER_MODE
 
 config IDE_ATAPI
 	bool
@@ -698,6 +702,7 @@ config BLK_DEV_IDE_PMAC_ATA100FIRST
 config BLK_DEV_IDE_AU1XXX
        bool "IDE for AMD Alchemy Au1200"
        depends on SOC_AU1200
+       select IDE_XFER_MODE
 choice
        prompt "IDE Mode for AMD Alchemy Au1200"
        default CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
@@ -871,6 +876,7 @@ config BLK_DEV_ALI14XX
 
 config BLK_DEV_DTC2278
 	tristate "DTC-2278 support"
+	select IDE_XFER_MODE
 	select IDE_LEGACY
 	help
 	  This driver is enabled at runtime using the "dtc2278.probe" kernel
@@ -902,6 +908,7 @@ config BLK_DEV_QD65XX
 
 config BLK_DEV_UMC8672
 	tristate "UMC-8672 support"
+	select IDE_XFER_MODE
 	select IDE_LEGACY
 	help
 	  This driver is enabled at runtime using the "umc8672.probe" kernel
@@ -915,5 +922,6 @@ endif
 config BLK_DEV_IDEDMA
 	def_bool BLK_DEV_IDEDMA_SFF || \
 		 BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
+	select IDE_XFER_MODE
 
 endif # IDE
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index 83a970ee4bfe..d0976e6ee090 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -5,10 +5,10 @@
 EXTRA_CFLAGS				+= -Idrivers/ide
 
 ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \
-	      ide-taskfile.o ide-pm.o ide-park.o ide-pio-blacklist.o \
-	      ide-sysfs.o ide-devsets.o
+	      ide-taskfile.o ide-pm.o ide-park.o ide-sysfs.o ide-devsets.o
 
 # core IDE code
+ide-core-$(CONFIG_IDE_XFER_MODE)	+= ide-pio-blacklist.o ide-xfer-mode.o
 ide-core-$(CONFIG_IDE_TIMINGS)		+= ide-timings.o
 ide-core-$(CONFIG_IDE_ATAPI)		+= ide-atapi.o
 ide-core-$(CONFIG_BLK_DEV_IDEPCI)	+= setup-pci.o
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 09526a0de734..f6c683dd2987 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -5,163 +5,6 @@
 #include <linux/ide.h>
 #include <linux/bitops.h>
 
-static const char *udma_str[] =
-	 { "UDMA/16", "UDMA/25",  "UDMA/33",  "UDMA/44",
-	   "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
-static const char *mwdma_str[] =
-	{ "MWDMA0", "MWDMA1", "MWDMA2" };
-static const char *swdma_str[] =
-	{ "SWDMA0", "SWDMA1", "SWDMA2" };
-static const char *pio_str[] =
-	{ "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };
-
-/**
- *	ide_xfer_verbose	-	return IDE mode names
- *	@mode: transfer mode
- *
- *	Returns a constant string giving the name of the mode
- *	requested.
- */
-
-const char *ide_xfer_verbose(u8 mode)
-{
-	const char *s;
-	u8 i = mode & 0xf;
-
-	if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
-		s = udma_str[i];
-	else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
-		s = mwdma_str[i];
-	else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
-		s = swdma_str[i];
-	else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
-		s = pio_str[i & 0x7];
-	else if (mode == XFER_PIO_SLOW)
-		s = "PIO SLOW";
-	else
-		s = "XFER ERROR";
-
-	return s;
-}
-EXPORT_SYMBOL(ide_xfer_verbose);
-
-/**
- *	ide_rate_filter		-	filter transfer mode
- *	@drive: IDE device
- *	@speed: desired speed
- *
- *	Given the available transfer modes this function returns
- *	the best available speed at or below the speed requested.
- *
- *	TODO: check device PIO capabilities
- */
-
-static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	u8 mode = ide_find_dma_mode(drive, speed);
-
-	if (mode == 0) {
-		if (hwif->pio_mask)
-			mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
-		else
-			mode = XFER_PIO_4;
-	}
-
-/*	printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */
-
-	return min(speed, mode);
-}
-
-/**
- *	ide_get_best_pio_mode	-	get PIO mode from drive
- *	@drive: drive to consider
- *	@mode_wanted: preferred mode
- *	@max_mode: highest allowed mode
- *
- *	This routine returns the recommended PIO settings for a given drive,
- *	based on the drive->id information and the ide_pio_blacklist[].
- *
- *	Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
- *	This is used by most chipset support modules when "auto-tuning".
- */
-
-u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
-{
-	u16 *id = drive->id;
-	int pio_mode = -1, overridden = 0;
-
-	if (mode_wanted != 255)
-		return min_t(u8, mode_wanted, max_mode);
-
-	if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0)
-		pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]);
-
-	if (pio_mode != -1) {
-		printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
-	} else {
-		pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
-		if (pio_mode > 2) {	/* 2 is maximum allowed tPIO value */
-			pio_mode = 2;
-			overridden = 1;
-		}
-
-		if (id[ATA_ID_FIELD_VALID] & 2) {	      /* ATA2? */
-			if (ata_id_has_iordy(id)) {
-				if (id[ATA_ID_PIO_MODES] & 7) {
-					overridden = 0;
-					if (id[ATA_ID_PIO_MODES] & 4)
-						pio_mode = 5;
-					else if (id[ATA_ID_PIO_MODES] & 2)
-						pio_mode = 4;
-					else
-						pio_mode = 3;
-				}
-			}
-		}
-
-		if (overridden)
-			printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
-					 drive->name);
-	}
-
-	if (pio_mode > max_mode)
-		pio_mode = max_mode;
-
-	return pio_mode;
-}
-EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);
-
-/* req_pio == "255" for auto-tune */
-void ide_set_pio(ide_drive_t *drive, u8 req_pio)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-	u8 host_pio, pio;
-
-	if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
-	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
-		return;
-
-	BUG_ON(hwif->pio_mask == 0x00);
-
-	host_pio = fls(hwif->pio_mask) - 1;
-
-	pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
-
-	/*
-	 * TODO:
-	 * - report device max PIO mode
-	 * - check req_pio != 255 against device max PIO mode
-	 */
-	printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
-			  drive->name, host_pio, req_pio,
-			  req_pio == 255 ? "(auto-tune)" : "", pio);
-
-	(void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
-}
-EXPORT_SYMBOL_GPL(ide_set_pio);
-
 /**
  *	ide_toggle_bounce	-	handle bounce buffering
  *	@drive: drive to update
@@ -188,89 +31,6 @@ void ide_toggle_bounce(ide_drive_t *drive, int on)
 		blk_queue_bounce_limit(drive->queue, addr);
 }
 
-int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-
-	if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
-		return 0;
-
-	if (port_ops == NULL || port_ops->set_pio_mode == NULL)
-		return -1;
-
-	/*
-	 * TODO: temporary hack for some legacy host drivers that didn't
-	 * set transfer mode on the device in ->set_pio_mode method...
-	 */
-	if (port_ops->set_dma_mode == NULL) {
-		port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
-		return 0;
-	}
-
-	if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
-		if (ide_config_drive_speed(drive, mode))
-			return -1;
-		port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
-		return 0;
-	} else {
-		port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
-		return ide_config_drive_speed(drive, mode);
-	}
-}
-
-int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-
-	if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
-		return 0;
-
-	if (port_ops == NULL || port_ops->set_dma_mode == NULL)
-		return -1;
-
-	if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
-		if (ide_config_drive_speed(drive, mode))
-			return -1;
-		port_ops->set_dma_mode(drive, mode);
-		return 0;
-	} else {
-		port_ops->set_dma_mode(drive, mode);
-		return ide_config_drive_speed(drive, mode);
-	}
-}
-EXPORT_SYMBOL_GPL(ide_set_dma_mode);
-
-/**
- *	ide_set_xfer_rate	-	set transfer rate
- *	@drive: drive to set
- *	@rate: speed to attempt to set
- *
- *	General helper for setting the speed of an IDE device. This
- *	function knows about user enforced limits from the configuration
- *	which ->set_pio_mode/->set_dma_mode does not.
- */
-
-int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-
-	if (port_ops == NULL || port_ops->set_dma_mode == NULL ||
-	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
-		return -1;
-
-	rate = ide_rate_filter(drive, rate);
-
-	BUG_ON(rate < XFER_PIO_0);
-
-	if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
-		return ide_set_pio_mode(drive, rate);
-
-	return ide_set_dma_mode(drive, rate);
-}
-
 static void ide_dump_opcode(ide_drive_t *drive)
 {
 	struct request *rq = drive->hwif->rq;
diff --git a/drivers/ide/ide-xfer-mode.c b/drivers/ide/ide-xfer-mode.c
new file mode 100644
index 000000000000..6910f6a257e8
--- /dev/null
+++ b/drivers/ide/ide-xfer-mode.c
@@ -0,0 +1,246 @@
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/ide.h>
+#include <linux/bitops.h>
+
+static const char *udma_str[] =
+	 { "UDMA/16", "UDMA/25",  "UDMA/33",  "UDMA/44",
+	   "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
+static const char *mwdma_str[] =
+	{ "MWDMA0", "MWDMA1", "MWDMA2" };
+static const char *swdma_str[] =
+	{ "SWDMA0", "SWDMA1", "SWDMA2" };
+static const char *pio_str[] =
+	{ "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };
+
+/**
+ *	ide_xfer_verbose	-	return IDE mode names
+ *	@mode: transfer mode
+ *
+ *	Returns a constant string giving the name of the mode
+ *	requested.
+ */
+
+const char *ide_xfer_verbose(u8 mode)
+{
+	const char *s;
+	u8 i = mode & 0xf;
+
+	if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
+		s = udma_str[i];
+	else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
+		s = mwdma_str[i];
+	else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
+		s = swdma_str[i];
+	else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
+		s = pio_str[i & 0x7];
+	else if (mode == XFER_PIO_SLOW)
+		s = "PIO SLOW";
+	else
+		s = "XFER ERROR";
+
+	return s;
+}
+EXPORT_SYMBOL(ide_xfer_verbose);
+
+/**
+ *	ide_get_best_pio_mode	-	get PIO mode from drive
+ *	@drive: drive to consider
+ *	@mode_wanted: preferred mode
+ *	@max_mode: highest allowed mode
+ *
+ *	This routine returns the recommended PIO settings for a given drive,
+ *	based on the drive->id information and the ide_pio_blacklist[].
+ *
+ *	Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
+ *	This is used by most chipset support modules when "auto-tuning".
+ */
+
+u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
+{
+	u16 *id = drive->id;
+	int pio_mode = -1, overridden = 0;
+
+	if (mode_wanted != 255)
+		return min_t(u8, mode_wanted, max_mode);
+
+	if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0)
+		pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]);
+
+	if (pio_mode != -1) {
+		printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
+	} else {
+		pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
+		if (pio_mode > 2) {	/* 2 is maximum allowed tPIO value */
+			pio_mode = 2;
+			overridden = 1;
+		}
+
+		if (id[ATA_ID_FIELD_VALID] & 2) {	      /* ATA2? */
+			if (ata_id_has_iordy(id)) {
+				if (id[ATA_ID_PIO_MODES] & 7) {
+					overridden = 0;
+					if (id[ATA_ID_PIO_MODES] & 4)
+						pio_mode = 5;
+					else if (id[ATA_ID_PIO_MODES] & 2)
+						pio_mode = 4;
+					else
+						pio_mode = 3;
+				}
+			}
+		}
+
+		if (overridden)
+			printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
+					 drive->name);
+	}
+
+	if (pio_mode > max_mode)
+		pio_mode = max_mode;
+
+	return pio_mode;
+}
+EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);
+
+int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	const struct ide_port_ops *port_ops = hwif->port_ops;
+
+	if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
+		return 0;
+
+	if (port_ops == NULL || port_ops->set_pio_mode == NULL)
+		return -1;
+
+	/*
+	 * TODO: temporary hack for some legacy host drivers that didn't
+	 * set transfer mode on the device in ->set_pio_mode method...
+	 */
+	if (port_ops->set_dma_mode == NULL) {
+		port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
+		return 0;
+	}
+
+	if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
+		if (ide_config_drive_speed(drive, mode))
+			return -1;
+		port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
+		return 0;
+	} else {
+		port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
+		return ide_config_drive_speed(drive, mode);
+	}
+}
+
+int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	const struct ide_port_ops *port_ops = hwif->port_ops;
+
+	if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
+		return 0;
+
+	if (port_ops == NULL || port_ops->set_dma_mode == NULL)
+		return -1;
+
+	if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
+		if (ide_config_drive_speed(drive, mode))
+			return -1;
+		port_ops->set_dma_mode(drive, mode);
+		return 0;
+	} else {
+		port_ops->set_dma_mode(drive, mode);
+		return ide_config_drive_speed(drive, mode);
+	}
+}
+EXPORT_SYMBOL_GPL(ide_set_dma_mode);
+
+/* req_pio == "255" for auto-tune */
+void ide_set_pio(ide_drive_t *drive, u8 req_pio)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	const struct ide_port_ops *port_ops = hwif->port_ops;
+	u8 host_pio, pio;
+
+	if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
+	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
+		return;
+
+	BUG_ON(hwif->pio_mask == 0x00);
+
+	host_pio = fls(hwif->pio_mask) - 1;
+
+	pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
+
+	/*
+	 * TODO:
+	 * - report device max PIO mode
+	 * - check req_pio != 255 against device max PIO mode
+	 */
+	printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
+			  drive->name, host_pio, req_pio,
+			  req_pio == 255 ? "(auto-tune)" : "", pio);
+
+	(void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
+}
+EXPORT_SYMBOL_GPL(ide_set_pio);
+
+/**
+ *	ide_rate_filter		-	filter transfer mode
+ *	@drive: IDE device
+ *	@speed: desired speed
+ *
+ *	Given the available transfer modes this function returns
+ *	the best available speed at or below the speed requested.
+ *
+ *	TODO: check device PIO capabilities
+ */
+
+static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	u8 mode = ide_find_dma_mode(drive, speed);
+
+	if (mode == 0) {
+		if (hwif->pio_mask)
+			mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
+		else
+			mode = XFER_PIO_4;
+	}
+
+/*	printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */
+
+	return min(speed, mode);
+}
+
+/**
+ *	ide_set_xfer_rate	-	set transfer rate
+ *	@drive: drive to set
+ *	@rate: speed to attempt to set
+ *
+ *	General helper for setting the speed of an IDE device. This
+ *	function knows about user enforced limits from the configuration
+ *	which ->set_pio_mode/->set_dma_mode does not.
+ */
+
+int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	const struct ide_port_ops *port_ops = hwif->port_ops;
+
+	if (port_ops == NULL || port_ops->set_dma_mode == NULL ||
+	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
+		return -1;
+
+	rate = ide_rate_filter(drive, rate);
+
+	BUG_ON(rate < XFER_PIO_0);
+
+	if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
+		return ide_set_pio_mode(drive, rate);
+
+	return ide_set_dma_mode(drive, rate);
+}
diff --git a/include/linux/ide.h b/include/linux/ide.h
index eca5082c3437..323c3710fbf4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1531,9 +1531,7 @@ static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data)
 	hwif->hwif_data = data;
 }
 
-const char *ide_xfer_verbose(u8 mode);
 extern void ide_toggle_bounce(ide_drive_t *drive, int on);
-extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate);
 
 u64 ide_get_lba_addr(struct ide_taskfile *, int);
 u8 ide_dump_status(ide_drive_t *, const char *, u8);
@@ -1572,14 +1570,18 @@ void ide_timing_merge(struct ide_timing *, struct ide_timing *,
 		      struct ide_timing *, unsigned int);
 int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int);
 
+#ifdef CONFIG_IDE_XFER_MODE
 int ide_scan_pio_blacklist(char *);
-
+const char *ide_xfer_verbose(u8);
 u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8);
-
 int ide_set_pio_mode(ide_drive_t *, u8);
 int ide_set_dma_mode(ide_drive_t *, u8);
-
 void ide_set_pio(ide_drive_t *, u8);
+int ide_set_xfer_rate(ide_drive_t *, u8);
+#else
+static inline void ide_set_pio(ide_drive_t *drive, u8 pio) { ; }
+static inline int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { return -1; }
+#endif
 
 static inline void ide_set_max_pio(ide_drive_t *drive)
 {
-- 
cgit v1.2.3


From 327fa1c29466b8fe471a91fc11e9c6171163c81a Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:47 +0100
Subject: ide: move error handling code to ide-eh.c (v2)

Do some CodingStyle fixups in <linux/ide.h> while at it.

v2:
Add missing <linux/delay.h> include (reported by Stephen Rothwell).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/Makefile   |   2 +-
 drivers/ide/ide-eh.c   | 428 +++++++++++++++++++++++++++++++++++++++++++++++++
 drivers/ide/ide-io.c   | 129 +--------------
 drivers/ide/ide-iops.c | 299 +---------------------------------
 include/linux/ide.h    |  13 +-
 5 files changed, 440 insertions(+), 431 deletions(-)
 create mode 100644 drivers/ide/ide-eh.c

(limited to 'include')

diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index cbb1aea2aea3..9b4bbe1cdc1a 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -6,7 +6,7 @@ EXTRA_CFLAGS				+= -Idrivers/ide
 
 ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \
 	      ide-taskfile.o ide-pm.o ide-park.o ide-sysfs.o ide-devsets.o \
-	      ide-io-std.o
+	      ide-io-std.o ide-eh.o
 
 # core IDE code
 ide-core-$(CONFIG_IDE_XFER_MODE)	+= ide-pio-blacklist.o ide-xfer-mode.o
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
new file mode 100644
index 000000000000..1231b5e486f2
--- /dev/null
+++ b/drivers/ide/ide-eh.c
@@ -0,0 +1,428 @@
+
+#include <linux/kernel.h>
+#include <linux/ide.h>
+#include <linux/delay.h>
+
+static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq,
+				     u8 stat, u8 err)
+{
+	ide_hwif_t *hwif = drive->hwif;
+
+	if ((stat & ATA_BUSY) ||
+	    ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
+		/* other bits are useless when BUSY */
+		rq->errors |= ERROR_RESET;
+	} else if (stat & ATA_ERR) {
+		/* err has different meaning on cdrom and tape */
+		if (err == ATA_ABORTED) {
+			if ((drive->dev_flags & IDE_DFLAG_LBA) &&
+			    /* some newer drives don't support ATA_CMD_INIT_DEV_PARAMS */
+			    hwif->tp_ops->read_status(hwif) == ATA_CMD_INIT_DEV_PARAMS)
+				return ide_stopped;
+		} else if ((err & BAD_CRC) == BAD_CRC) {
+			/* UDMA crc error, just retry the operation */
+			drive->crc_count++;
+		} else if (err & (ATA_BBK | ATA_UNC)) {
+			/* retries won't help these */
+			rq->errors = ERROR_MAX;
+		} else if (err & ATA_TRK0NF) {
+			/* help it find track zero */
+			rq->errors |= ERROR_RECAL;
+		}
+	}
+
+	if ((stat & ATA_DRQ) && rq_data_dir(rq) == READ &&
+	    (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) {
+		int nsect = drive->mult_count ? drive->mult_count : 1;
+
+		ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE);
+	}
+
+	if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) {
+		ide_kill_rq(drive, rq);
+		return ide_stopped;
+	}
+
+	if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
+		rq->errors |= ERROR_RESET;
+
+	if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
+		++rq->errors;
+		return ide_do_reset(drive);
+	}
+
+	if ((rq->errors & ERROR_RECAL) == ERROR_RECAL)
+		drive->special.b.recalibrate = 1;
+
+	++rq->errors;
+
+	return ide_stopped;
+}
+
+static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq,
+				       u8 stat, u8 err)
+{
+	ide_hwif_t *hwif = drive->hwif;
+
+	if ((stat & ATA_BUSY) ||
+	    ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
+		/* other bits are useless when BUSY */
+		rq->errors |= ERROR_RESET;
+	} else {
+		/* add decoding error stuff */
+	}
+
+	if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
+		/* force an abort */
+		hwif->tp_ops->exec_command(hwif, ATA_CMD_IDLEIMMEDIATE);
+
+	if (rq->errors >= ERROR_MAX) {
+		ide_kill_rq(drive, rq);
+	} else {
+		if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
+			++rq->errors;
+			return ide_do_reset(drive);
+		}
+		++rq->errors;
+	}
+
+	return ide_stopped;
+}
+
+static ide_startstop_t __ide_error(ide_drive_t *drive, struct request *rq,
+				   u8 stat, u8 err)
+{
+	if (drive->media == ide_disk)
+		return ide_ata_error(drive, rq, stat, err);
+	return ide_atapi_error(drive, rq, stat, err);
+}
+
+/**
+ *	ide_error	-	handle an error on the IDE
+ *	@drive: drive the error occurred on
+ *	@msg: message to report
+ *	@stat: status bits
+ *
+ *	ide_error() takes action based on the error returned by the drive.
+ *	For normal I/O that may well include retries. We deal with
+ *	both new-style (taskfile) and old style command handling here.
+ *	In the case of taskfile command handling there is work left to
+ *	do
+ */
+
+ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat)
+{
+	struct request *rq;
+	u8 err;
+
+	err = ide_dump_status(drive, msg, stat);
+
+	rq = drive->hwif->rq;
+	if (rq == NULL)
+		return ide_stopped;
+
+	/* retry only "normal" I/O: */
+	if (!blk_fs_request(rq)) {
+		rq->errors = 1;
+		ide_end_drive_cmd(drive, stat, err);
+		return ide_stopped;
+	}
+
+	return __ide_error(drive, rq, stat, err);
+}
+EXPORT_SYMBOL_GPL(ide_error);
+
+static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
+{
+	struct request *rq = drive->hwif->rq;
+
+	if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
+		ide_end_request(drive, err ? err : 1, 0);
+}
+
+/* needed below */
+static ide_startstop_t do_reset1(ide_drive_t *, int);
+
+/*
+ * atapi_reset_pollfunc() gets invoked to poll the interface for completion
+ * every 50ms during an atapi drive reset operation.  If the drive has not yet
+ * responded, and we have not yet hit our maximum waiting time, then the timer
+ * is restarted for another 50ms.
+ */
+static ide_startstop_t atapi_reset_pollfunc(ide_drive_t *drive)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	u8 stat;
+
+	SELECT_DRIVE(drive);
+	udelay(10);
+	stat = hwif->tp_ops->read_status(hwif);
+
+	if (OK_STAT(stat, 0, ATA_BUSY))
+		printk(KERN_INFO "%s: ATAPI reset complete\n", drive->name);
+	else {
+		if (time_before(jiffies, hwif->poll_timeout)) {
+			ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20,
+					NULL);
+			/* continue polling */
+			return ide_started;
+		}
+		/* end of polling */
+		hwif->polling = 0;
+		printk(KERN_ERR "%s: ATAPI reset timed-out, status=0x%02x\n",
+			drive->name, stat);
+		/* do it the old fashioned way */
+		return do_reset1(drive, 1);
+	}
+	/* done polling */
+	hwif->polling = 0;
+	ide_complete_drive_reset(drive, 0);
+	return ide_stopped;
+}
+
+static void ide_reset_report_error(ide_hwif_t *hwif, u8 err)
+{
+	static const char *err_master_vals[] =
+		{ NULL, "passed", "formatter device error",
+		  "sector buffer error", "ECC circuitry error",
+		  "controlling MPU error" };
+
+	u8 err_master = err & 0x7f;
+
+	printk(KERN_ERR "%s: reset: master: ", hwif->name);
+	if (err_master && err_master < 6)
+		printk(KERN_CONT "%s", err_master_vals[err_master]);
+	else
+		printk(KERN_CONT "error (0x%02x?)", err);
+	if (err & 0x80)
+		printk(KERN_CONT "; slave: failed");
+	printk(KERN_CONT "\n");
+}
+
+/*
+ * reset_pollfunc() gets invoked to poll the interface for completion every 50ms
+ * during an ide reset operation. If the drives have not yet responded,
+ * and we have not yet hit our maximum waiting time, then the timer is restarted
+ * for another 50ms.
+ */
+static ide_startstop_t reset_pollfunc(ide_drive_t *drive)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	const struct ide_port_ops *port_ops = hwif->port_ops;
+	u8 tmp;
+	int err = 0;
+
+	if (port_ops && port_ops->reset_poll) {
+		err = port_ops->reset_poll(drive);
+		if (err) {
+			printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
+				hwif->name, drive->name);
+			goto out;
+		}
+	}
+
+	tmp = hwif->tp_ops->read_status(hwif);
+
+	if (!OK_STAT(tmp, 0, ATA_BUSY)) {
+		if (time_before(jiffies, hwif->poll_timeout)) {
+			ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
+			/* continue polling */
+			return ide_started;
+		}
+		printk(KERN_ERR "%s: reset timed-out, status=0x%02x\n",
+			hwif->name, tmp);
+		drive->failures++;
+		err = -EIO;
+	} else  {
+		tmp = ide_read_error(drive);
+
+		if (tmp == 1) {
+			printk(KERN_INFO "%s: reset: success\n", hwif->name);
+			drive->failures = 0;
+		} else {
+			ide_reset_report_error(hwif, tmp);
+			drive->failures++;
+			err = -EIO;
+		}
+	}
+out:
+	hwif->polling = 0;	/* done polling */
+	ide_complete_drive_reset(drive, err);
+	return ide_stopped;
+}
+
+static void ide_disk_pre_reset(ide_drive_t *drive)
+{
+	int legacy = (drive->id[ATA_ID_CFS_ENABLE_2] & 0x0400) ? 0 : 1;
+
+	drive->special.all = 0;
+	drive->special.b.set_geometry = legacy;
+	drive->special.b.recalibrate  = legacy;
+
+	drive->mult_count = 0;
+	drive->dev_flags &= ~IDE_DFLAG_PARKED;
+
+	if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
+	    (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
+		drive->mult_req = 0;
+
+	if (drive->mult_req != drive->mult_count)
+		drive->special.b.set_multmode = 1;
+}
+
+static void pre_reset(ide_drive_t *drive)
+{
+	const struct ide_port_ops *port_ops = drive->hwif->port_ops;
+
+	if (drive->media == ide_disk)
+		ide_disk_pre_reset(drive);
+	else
+		drive->dev_flags |= IDE_DFLAG_POST_RESET;
+
+	if (drive->dev_flags & IDE_DFLAG_USING_DMA) {
+		if (drive->crc_count)
+			ide_check_dma_crc(drive);
+		else
+			ide_dma_off(drive);
+	}
+
+	if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) {
+		if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) {
+			drive->dev_flags &= ~IDE_DFLAG_UNMASK;
+			drive->io_32bit = 0;
+		}
+		return;
+	}
+
+	if (port_ops && port_ops->pre_reset)
+		port_ops->pre_reset(drive);
+
+	if (drive->current_speed != 0xff)
+		drive->desired_speed = drive->current_speed;
+	drive->current_speed = 0xff;
+}
+
+/*
+ * do_reset1() attempts to recover a confused drive by resetting it.
+ * Unfortunately, resetting a disk drive actually resets all devices on
+ * the same interface, so it can really be thought of as resetting the
+ * interface rather than resetting the drive.
+ *
+ * ATAPI devices have their own reset mechanism which allows them to be
+ * individually reset without clobbering other devices on the same interface.
+ *
+ * Unfortunately, the IDE interface does not generate an interrupt to let
+ * us know when the reset operation has finished, so we must poll for this.
+ * Equally poor, though, is the fact that this may a very long time to complete,
+ * (up to 30 seconds worstcase).  So, instead of busy-waiting here for it,
+ * we set a timer to poll at 50ms intervals.
+ */
+static ide_startstop_t do_reset1(ide_drive_t *drive, int do_not_try_atapi)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	struct ide_io_ports *io_ports = &hwif->io_ports;
+	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
+	const struct ide_port_ops *port_ops;
+	ide_drive_t *tdrive;
+	unsigned long flags, timeout;
+	int i;
+	DEFINE_WAIT(wait);
+
+	spin_lock_irqsave(&hwif->lock, flags);
+
+	/* We must not reset with running handlers */
+	BUG_ON(hwif->handler != NULL);
+
+	/* For an ATAPI device, first try an ATAPI SRST. */
+	if (drive->media != ide_disk && !do_not_try_atapi) {
+		pre_reset(drive);
+		SELECT_DRIVE(drive);
+		udelay(20);
+		tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
+		ndelay(400);
+		hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+		hwif->polling = 1;
+		__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
+		spin_unlock_irqrestore(&hwif->lock, flags);
+		return ide_started;
+	}
+
+	/* We must not disturb devices in the IDE_DFLAG_PARKED state. */
+	do {
+		unsigned long now;
+
+		prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
+		timeout = jiffies;
+		ide_port_for_each_present_dev(i, tdrive, hwif) {
+			if ((tdrive->dev_flags & IDE_DFLAG_PARKED) &&
+			    time_after(tdrive->sleep, timeout))
+				timeout = tdrive->sleep;
+		}
+
+		now = jiffies;
+		if (time_before_eq(timeout, now))
+			break;
+
+		spin_unlock_irqrestore(&hwif->lock, flags);
+		timeout = schedule_timeout_uninterruptible(timeout - now);
+		spin_lock_irqsave(&hwif->lock, flags);
+	} while (timeout);
+	finish_wait(&ide_park_wq, &wait);
+
+	/*
+	 * First, reset any device state data we were maintaining
+	 * for any of the drives on this interface.
+	 */
+	ide_port_for_each_dev(i, tdrive, hwif)
+		pre_reset(tdrive);
+
+	if (io_ports->ctl_addr == 0) {
+		spin_unlock_irqrestore(&hwif->lock, flags);
+		ide_complete_drive_reset(drive, -ENXIO);
+		return ide_stopped;
+	}
+
+	/*
+	 * Note that we also set nIEN while resetting the device,
+	 * to mask unwanted interrupts from the interface during the reset.
+	 * However, due to the design of PC hardware, this will cause an
+	 * immediate interrupt due to the edge transition it produces.
+	 * This single interrupt gives us a "fast poll" for drives that
+	 * recover from reset very quickly, saving us the first 50ms wait time.
+	 *
+	 * TODO: add ->softreset method and stop abusing ->set_irq
+	 */
+	/* set SRST and nIEN */
+	tp_ops->set_irq(hwif, 4);
+	/* more than enough time */
+	udelay(10);
+	/* clear SRST, leave nIEN (unless device is on the quirk list) */
+	tp_ops->set_irq(hwif, drive->quirk_list == 2);
+	/* more than enough time */
+	udelay(10);
+	hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
+	hwif->polling = 1;
+	__ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
+
+	/*
+	 * Some weird controller like resetting themselves to a strange
+	 * state when the disks are reset this way. At least, the Winbond
+	 * 553 documentation says that
+	 */
+	port_ops = hwif->port_ops;
+	if (port_ops && port_ops->resetproc)
+		port_ops->resetproc(drive);
+
+	spin_unlock_irqrestore(&hwif->lock, flags);
+	return ide_started;
+}
+
+/*
+ * ide_do_reset() is the entry point to the drive/interface reset code.
+ */
+
+ide_startstop_t ide_do_reset(ide_drive_t *drive)
+{
+	return do_reset1(drive, 0);
+}
+EXPORT_SYMBOL(ide_do_reset);
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 74d1a3e68252..2e92497b58aa 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -196,7 +196,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
 }
 EXPORT_SYMBOL(ide_end_drive_cmd);
 
-static void ide_kill_rq(ide_drive_t *drive, struct request *rq)
+void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 {
 	if (rq->rq_disk) {
 		struct ide_driver *drv;
@@ -207,133 +207,6 @@ static void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 		ide_end_request(drive, 0, 0);
 }
 
-static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
-{
-	ide_hwif_t *hwif = drive->hwif;
-
-	if ((stat & ATA_BUSY) ||
-	    ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
-		/* other bits are useless when BUSY */
-		rq->errors |= ERROR_RESET;
-	} else if (stat & ATA_ERR) {
-		/* err has different meaning on cdrom and tape */
-		if (err == ATA_ABORTED) {
-			if ((drive->dev_flags & IDE_DFLAG_LBA) &&
-			    /* some newer drives don't support ATA_CMD_INIT_DEV_PARAMS */
-			    hwif->tp_ops->read_status(hwif) == ATA_CMD_INIT_DEV_PARAMS)
-				return ide_stopped;
-		} else if ((err & BAD_CRC) == BAD_CRC) {
-			/* UDMA crc error, just retry the operation */
-			drive->crc_count++;
-		} else if (err & (ATA_BBK | ATA_UNC)) {
-			/* retries won't help these */
-			rq->errors = ERROR_MAX;
-		} else if (err & ATA_TRK0NF) {
-			/* help it find track zero */
-			rq->errors |= ERROR_RECAL;
-		}
-	}
-
-	if ((stat & ATA_DRQ) && rq_data_dir(rq) == READ &&
-	    (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) {
-		int nsect = drive->mult_count ? drive->mult_count : 1;
-
-		ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE);
-	}
-
-	if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) {
-		ide_kill_rq(drive, rq);
-		return ide_stopped;
-	}
-
-	if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
-		rq->errors |= ERROR_RESET;
-
-	if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
-		++rq->errors;
-		return ide_do_reset(drive);
-	}
-
-	if ((rq->errors & ERROR_RECAL) == ERROR_RECAL)
-		drive->special.b.recalibrate = 1;
-
-	++rq->errors;
-
-	return ide_stopped;
-}
-
-static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
-{
-	ide_hwif_t *hwif = drive->hwif;
-
-	if ((stat & ATA_BUSY) ||
-	    ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
-		/* other bits are useless when BUSY */
-		rq->errors |= ERROR_RESET;
-	} else {
-		/* add decoding error stuff */
-	}
-
-	if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ))
-		/* force an abort */
-		hwif->tp_ops->exec_command(hwif, ATA_CMD_IDLEIMMEDIATE);
-
-	if (rq->errors >= ERROR_MAX) {
-		ide_kill_rq(drive, rq);
-	} else {
-		if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
-			++rq->errors;
-			return ide_do_reset(drive);
-		}
-		++rq->errors;
-	}
-
-	return ide_stopped;
-}
-
-static ide_startstop_t
-__ide_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
-{
-	if (drive->media == ide_disk)
-		return ide_ata_error(drive, rq, stat, err);
-	return ide_atapi_error(drive, rq, stat, err);
-}
-
-/**
- *	ide_error	-	handle an error on the IDE
- *	@drive: drive the error occurred on
- *	@msg: message to report
- *	@stat: status bits
- *
- *	ide_error() takes action based on the error returned by the drive.
- *	For normal I/O that may well include retries. We deal with
- *	both new-style (taskfile) and old style command handling here.
- *	In the case of taskfile command handling there is work left to
- *	do
- */
- 
-ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, u8 stat)
-{
-	struct request *rq;
-	u8 err;
-
-	err = ide_dump_status(drive, msg, stat);
-
-	rq = drive->hwif->rq;
-	if (rq == NULL)
-		return ide_stopped;
-
-	/* retry only "normal" I/O: */
-	if (!blk_fs_request(rq)) {
-		rq->errors = 1;
-		ide_end_drive_cmd(drive, stat, err);
-		return ide_stopped;
-	}
-
-	return __ide_error(drive, rq, stat, err);
-}
-EXPORT_SYMBOL_GPL(ide_error);
-
 static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
 {
 	tf->nsect   = drive->sect;
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index cf6c3036ae7f..e0cfa2d2acc7 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -446,8 +446,8 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
  *
  * See also ide_execute_command
  */
-static void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
-		      unsigned int timeout, ide_expiry_t *expiry)
+void __ide_set_handler(ide_drive_t *drive, ide_handler_t *handler,
+		       unsigned int timeout, ide_expiry_t *expiry)
 {
 	ide_hwif_t *hwif = drive->hwif;
 
@@ -517,301 +517,6 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
 }
 EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
 
-static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
-{
-	struct request *rq = drive->hwif->rq;
-
-	if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
-		ide_end_request(drive, err ? err : 1, 0);
-}
-
-/* needed below */
-static ide_startstop_t do_reset1(ide_drive_t *, int);
-
-/*
- * atapi_reset_pollfunc() gets invoked to poll the interface for completion
- * every 50ms during an atapi drive reset operation.  If the drive has not yet
- * responded, and we have not yet hit our maximum waiting time, then the timer
- * is restarted for another 50ms.
- */
-static ide_startstop_t atapi_reset_pollfunc(ide_drive_t *drive)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	u8 stat;
-
-	SELECT_DRIVE(drive);
-	udelay(10);
-	stat = hwif->tp_ops->read_status(hwif);
-
-	if (OK_STAT(stat, 0, ATA_BUSY))
-		printk(KERN_INFO "%s: ATAPI reset complete\n", drive->name);
-	else {
-		if (time_before(jiffies, hwif->poll_timeout)) {
-			ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20,
-					NULL);
-			/* continue polling */
-			return ide_started;
-		}
-		/* end of polling */
-		hwif->polling = 0;
-		printk(KERN_ERR "%s: ATAPI reset timed-out, status=0x%02x\n",
-			drive->name, stat);
-		/* do it the old fashioned way */
-		return do_reset1(drive, 1);
-	}
-	/* done polling */
-	hwif->polling = 0;
-	ide_complete_drive_reset(drive, 0);
-	return ide_stopped;
-}
-
-static void ide_reset_report_error(ide_hwif_t *hwif, u8 err)
-{
-	static const char *err_master_vals[] =
-		{ NULL, "passed", "formatter device error",
-		  "sector buffer error", "ECC circuitry error",
-		  "controlling MPU error" };
-
-	u8 err_master = err & 0x7f;
-
-	printk(KERN_ERR "%s: reset: master: ", hwif->name);
-	if (err_master && err_master < 6)
-		printk(KERN_CONT "%s", err_master_vals[err_master]);
-	else
-		printk(KERN_CONT "error (0x%02x?)", err);
-	if (err & 0x80)
-		printk(KERN_CONT "; slave: failed");
-	printk(KERN_CONT "\n");
-}
-
-/*
- * reset_pollfunc() gets invoked to poll the interface for completion every 50ms
- * during an ide reset operation. If the drives have not yet responded,
- * and we have not yet hit our maximum waiting time, then the timer is restarted
- * for another 50ms.
- */
-static ide_startstop_t reset_pollfunc(ide_drive_t *drive)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-	u8 tmp;
-	int err = 0;
-
-	if (port_ops && port_ops->reset_poll) {
-		err = port_ops->reset_poll(drive);
-		if (err) {
-			printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
-				hwif->name, drive->name);
-			goto out;
-		}
-	}
-
-	tmp = hwif->tp_ops->read_status(hwif);
-
-	if (!OK_STAT(tmp, 0, ATA_BUSY)) {
-		if (time_before(jiffies, hwif->poll_timeout)) {
-			ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
-			/* continue polling */
-			return ide_started;
-		}
-		printk(KERN_ERR "%s: reset timed-out, status=0x%02x\n",
-			hwif->name, tmp);
-		drive->failures++;
-		err = -EIO;
-	} else  {
-		tmp = ide_read_error(drive);
-
-		if (tmp == 1) {
-			printk(KERN_INFO "%s: reset: success\n", hwif->name);
-			drive->failures = 0;
-		} else {
-			ide_reset_report_error(hwif, tmp);
-			drive->failures++;
-			err = -EIO;
-		}
-	}
-out:
-	hwif->polling = 0;	/* done polling */
-	ide_complete_drive_reset(drive, err);
-	return ide_stopped;
-}
-
-static void ide_disk_pre_reset(ide_drive_t *drive)
-{
-	int legacy = (drive->id[ATA_ID_CFS_ENABLE_2] & 0x0400) ? 0 : 1;
-
-	drive->special.all = 0;
-	drive->special.b.set_geometry = legacy;
-	drive->special.b.recalibrate  = legacy;
-
-	drive->mult_count = 0;
-	drive->dev_flags &= ~IDE_DFLAG_PARKED;
-
-	if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
-	    (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
-		drive->mult_req = 0;
-
-	if (drive->mult_req != drive->mult_count)
-		drive->special.b.set_multmode = 1;
-}
-
-static void pre_reset(ide_drive_t *drive)
-{
-	const struct ide_port_ops *port_ops = drive->hwif->port_ops;
-
-	if (drive->media == ide_disk)
-		ide_disk_pre_reset(drive);
-	else
-		drive->dev_flags |= IDE_DFLAG_POST_RESET;
-
-	if (drive->dev_flags & IDE_DFLAG_USING_DMA) {
-		if (drive->crc_count)
-			ide_check_dma_crc(drive);
-		else
-			ide_dma_off(drive);
-	}
-
-	if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) {
-		if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) {
-			drive->dev_flags &= ~IDE_DFLAG_UNMASK;
-			drive->io_32bit = 0;
-		}
-		return;
-	}
-
-	if (port_ops && port_ops->pre_reset)
-		port_ops->pre_reset(drive);
-
-	if (drive->current_speed != 0xff)
-		drive->desired_speed = drive->current_speed;
-	drive->current_speed = 0xff;
-}
-
-/*
- * do_reset1() attempts to recover a confused drive by resetting it.
- * Unfortunately, resetting a disk drive actually resets all devices on
- * the same interface, so it can really be thought of as resetting the
- * interface rather than resetting the drive.
- *
- * ATAPI devices have their own reset mechanism which allows them to be
- * individually reset without clobbering other devices on the same interface.
- *
- * Unfortunately, the IDE interface does not generate an interrupt to let
- * us know when the reset operation has finished, so we must poll for this.
- * Equally poor, though, is the fact that this may a very long time to complete,
- * (up to 30 seconds worstcase).  So, instead of busy-waiting here for it,
- * we set a timer to poll at 50ms intervals.
- */
-static ide_startstop_t do_reset1(ide_drive_t *drive, int do_not_try_atapi)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	struct ide_io_ports *io_ports = &hwif->io_ports;
-	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
-	const struct ide_port_ops *port_ops;
-	ide_drive_t *tdrive;
-	unsigned long flags, timeout;
-	int i;
-	DEFINE_WAIT(wait);
-
-	spin_lock_irqsave(&hwif->lock, flags);
-
-	/* We must not reset with running handlers */
-	BUG_ON(hwif->handler != NULL);
-
-	/* For an ATAPI device, first try an ATAPI SRST. */
-	if (drive->media != ide_disk && !do_not_try_atapi) {
-		pre_reset(drive);
-		SELECT_DRIVE(drive);
-		udelay(20);
-		tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
-		ndelay(400);
-		hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
-		hwif->polling = 1;
-		__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
-		spin_unlock_irqrestore(&hwif->lock, flags);
-		return ide_started;
-	}
-
-	/* We must not disturb devices in the IDE_DFLAG_PARKED state. */
-	do {
-		unsigned long now;
-
-		prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
-		timeout = jiffies;
-		ide_port_for_each_present_dev(i, tdrive, hwif) {
-			if ((tdrive->dev_flags & IDE_DFLAG_PARKED) &&
-			    time_after(tdrive->sleep, timeout))
-				timeout = tdrive->sleep;
-		}
-
-		now = jiffies;
-		if (time_before_eq(timeout, now))
-			break;
-
-		spin_unlock_irqrestore(&hwif->lock, flags);
-		timeout = schedule_timeout_uninterruptible(timeout - now);
-		spin_lock_irqsave(&hwif->lock, flags);
-	} while (timeout);
-	finish_wait(&ide_park_wq, &wait);
-
-	/*
-	 * First, reset any device state data we were maintaining
-	 * for any of the drives on this interface.
-	 */
-	ide_port_for_each_dev(i, tdrive, hwif)
-		pre_reset(tdrive);
-
-	if (io_ports->ctl_addr == 0) {
-		spin_unlock_irqrestore(&hwif->lock, flags);
-		ide_complete_drive_reset(drive, -ENXIO);
-		return ide_stopped;
-	}
-
-	/*
-	 * Note that we also set nIEN while resetting the device,
-	 * to mask unwanted interrupts from the interface during the reset.
-	 * However, due to the design of PC hardware, this will cause an
-	 * immediate interrupt due to the edge transition it produces.
-	 * This single interrupt gives us a "fast poll" for drives that
-	 * recover from reset very quickly, saving us the first 50ms wait time.
-	 *
-	 * TODO: add ->softreset method and stop abusing ->set_irq
-	 */
-	/* set SRST and nIEN */
-	tp_ops->set_irq(hwif, 4);
-	/* more than enough time */
-	udelay(10);
-	/* clear SRST, leave nIEN (unless device is on the quirk list) */
-	tp_ops->set_irq(hwif, drive->quirk_list == 2);
-	/* more than enough time */
-	udelay(10);
-	hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
-	hwif->polling = 1;
-	__ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
-
-	/*
-	 * Some weird controller like resetting themselves to a strange
-	 * state when the disks are reset this way. At least, the Winbond
-	 * 553 documentation says that
-	 */
-	port_ops = hwif->port_ops;
-	if (port_ops && port_ops->resetproc)
-		port_ops->resetproc(drive);
-
-	spin_unlock_irqrestore(&hwif->lock, flags);
-	return ide_started;
-}
-
-/*
- * ide_do_reset() is the entry point to the drive/interface reset code.
- */
-
-ide_startstop_t ide_do_reset(ide_drive_t *drive)
-{
-	return do_reset1(drive, 0);
-}
-EXPORT_SYMBOL(ide_do_reset);
-
 /*
  * ide_wait_not_busy() waits for the currently selected device on the hwif
  * to report a non-busy status, see comments in ide_probe_port().
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 323c3710fbf4..0c87ed52a875 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1146,11 +1146,14 @@ int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned l
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
 
-extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs);
-int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
-			     int uptodate, int nr_sectors);
-
-extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry);
+int ide_end_request(ide_drive_t *, int, int);
+int ide_end_dequeued_request(ide_drive_t *, struct request *, int, int);
+void ide_kill_rq(ide_drive_t *, struct request *);
+
+void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,
+		       ide_expiry_t *);
+void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,
+		     ide_expiry_t *);
 
 void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int,
 			 ide_expiry_t *);
-- 
cgit v1.2.3


From b75aa122edd91599e0cf2ae57a5de1e84d9895c2 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:48 +0100
Subject: mn10300: add pci_get_legacy_ide_irq() to <asm/pci.h>

Add missing pci_get_legacy_ide_irq() implementation
before it becomes required by core IDE PCI code.

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 include/asm-mn10300/pci.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include')

diff --git a/include/asm-mn10300/pci.h b/include/asm-mn10300/pci.h
index cd9cc5c89cea..0517b45313d8 100644
--- a/include/asm-mn10300/pci.h
+++ b/include/asm-mn10300/pci.h
@@ -121,4 +121,9 @@ pcibios_select_root(struct pci_dev *pdev, struct resource *res)
 
 #define pcibios_scan_all_fns(a, b)	0
 
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+	return channel ? 15 : 14;
+}
+
 #endif /* _ASM_PCI_H */
-- 
cgit v1.2.3


From 2467922a560bb7e6eb4635435760ad0a2197ffcc Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:52 +0100
Subject: ide: remove no longer needed IDE_HFLAG[_FORCE]_LEGACY_IRQS

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/atiixp.c          |  3 +--
 drivers/ide/ide-pci-generic.c |  4 +---
 drivers/ide/piix.c            | 11 +----------
 drivers/ide/serverworks.c     |  9 ++-------
 drivers/ide/sis5513.c         |  2 +-
 drivers/ide/slc90e66.c        |  1 -
 drivers/ide/via82cxxx.c       | 10 ----------
 include/linux/ide.h           |  4 ----
 8 files changed, 6 insertions(+), 38 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c
index ecd1e62ca91a..923cbfe259d3 100644
--- a/drivers/ide/atiixp.c
+++ b/drivers/ide/atiixp.c
@@ -142,7 +142,6 @@ static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
 		.name		= DRV_NAME,
 		.enablebits	= {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
 		.port_ops	= &atiixp_port_ops,
-		.host_flags	= IDE_HFLAG_LEGACY_IRQS,
 		.pio_mask	= ATA_PIO4,
 		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA5,
@@ -151,7 +150,7 @@ static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
 		.name		= DRV_NAME,
 		.enablebits	= {{0x48,0x01,0x00}, {0x00,0x00,0x00}},
 		.port_ops	= &atiixp_port_ops,
-		.host_flags	= IDE_HFLAG_SINGLE | IDE_HFLAG_LEGACY_IRQS,
+		.host_flags	= IDE_HFLAG_SINGLE,
 		.pio_mask	= ATA_PIO4,
 		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA5,
diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
index bddae2b329a0..61111fd27130 100644
--- a/drivers/ide/ide-pci-generic.c
+++ b/drivers/ide/ide-pci-generic.c
@@ -33,8 +33,6 @@ static int ide_generic_all;		/* Set to claim all devices */
 module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
 MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
 
-#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
-
 #define DECLARE_GENERIC_PCI_DEV(extra_flags) \
 	{ \
 		.name		= DRV_NAME, \
@@ -61,7 +59,7 @@ static const struct ide_port_info generic_chipsets[] __devinitdata = {
 	/*  2: SAMURAI / HT6565 / HINT_IDE */
 	DECLARE_GENERIC_PCI_DEV(0),
 	/*  3: UM8673F / UM8886A / UM8886BF */
-	DECLARE_GENERIC_PCI_DEV(IDE_HFLAGS_UMC),
+	DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_DMA),
 	/*  4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */
 	DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA),
 
diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c
index f1e2e4ef0d71..42c2e3522d74 100644
--- a/drivers/ide/piix.c
+++ b/drivers/ide/piix.c
@@ -318,19 +318,12 @@ static const struct ide_port_ops ich_port_ops = {
 	.cable_detect		= piix_cable_detect,
 };
 
-#ifndef CONFIG_IA64
- #define IDE_HFLAGS_PIIX IDE_HFLAG_LEGACY_IRQS
-#else
- #define IDE_HFLAGS_PIIX 0
-#endif
-
 #define DECLARE_PIIX_DEV(udma) \
 	{						\
 		.name		= DRV_NAME,		\
 		.init_hwif	= init_hwif_piix,	\
 		.enablebits	= {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
 		.port_ops	= &piix_port_ops,	\
-		.host_flags	= IDE_HFLAGS_PIIX,	\
 		.pio_mask	= ATA_PIO4,		\
 		.swdma_mask	= ATA_SWDMA2_ONLY,	\
 		.mwdma_mask	= ATA_MWDMA12_ONLY,	\
@@ -344,7 +337,6 @@ static const struct ide_port_ops ich_port_ops = {
 		.init_hwif	= init_hwif_piix, \
 		.enablebits	= {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
 		.port_ops	= &ich_port_ops, \
-		.host_flags	= IDE_HFLAGS_PIIX, \
 		.pio_mask	= ATA_PIO4, \
 		.swdma_mask	= ATA_SWDMA2_ONLY, \
 		.mwdma_mask	= ATA_MWDMA12_ONLY, \
@@ -360,8 +352,7 @@ static const struct ide_port_info piix_pci_info[] __devinitdata = {
 		 */
 		.name		= DRV_NAME,
 		.enablebits	= {{0x6d,0xc0,0x80}, {0x6d,0xc0,0xc0}},
-		.host_flags	= IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA |
-				  IDE_HFLAGS_PIIX,
+		.host_flags	= IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA,
 		.pio_mask	= ATA_PIO4,
 		/* This is a painful system best to let it self tune for now */
 	},
diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c
index 382102ba467b..14718e73991e 100644
--- a/drivers/ide/serverworks.c
+++ b/drivers/ide/serverworks.c
@@ -353,14 +353,11 @@ static const struct ide_port_ops svwks_port_ops = {
 	.cable_detect		= svwks_cable_detect,
 };
 
-#define IDE_HFLAGS_SVWKS IDE_HFLAG_LEGACY_IRQS
-
 static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
 	{	/* 0: OSB4 */
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_svwks,
 		.port_ops	= &osb4_port_ops,
-		.host_flags	= IDE_HFLAGS_SVWKS,
 		.pio_mask	= ATA_PIO4,
 		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= 0x00, /* UDMA is problematic on OSB4 */
@@ -369,7 +366,6 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_svwks,
 		.port_ops	= &svwks_port_ops,
-		.host_flags	= IDE_HFLAGS_SVWKS,
 		.pio_mask	= ATA_PIO4,
 		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA5,
@@ -378,7 +374,6 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_svwks,
 		.port_ops	= &svwks_port_ops,
-		.host_flags	= IDE_HFLAGS_SVWKS,
 		.pio_mask	= ATA_PIO4,
 		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA5,
@@ -387,7 +382,7 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_svwks,
 		.port_ops	= &svwks_port_ops,
-		.host_flags	= IDE_HFLAGS_SVWKS | IDE_HFLAG_SINGLE,
+		.host_flags	= IDE_HFLAG_SINGLE,
 		.pio_mask	= ATA_PIO4,
 		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA5,
@@ -396,7 +391,7 @@ static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_svwks,
 		.port_ops	= &svwks_port_ops,
-		.host_flags	= IDE_HFLAGS_SVWKS | IDE_HFLAG_SINGLE,
+		.host_flags	= IDE_HFLAG_SINGLE,
 		.pio_mask	= ATA_PIO4,
 		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA5,
diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c
index 9ec1a4a4432c..d2d54aaea13a 100644
--- a/drivers/ide/sis5513.c
+++ b/drivers/ide/sis5513.c
@@ -563,7 +563,7 @@ static const struct ide_port_info sis5513_chipset __devinitdata = {
 	.name		= DRV_NAME,
 	.init_chipset	= init_chipset_sis5513,
 	.enablebits	= { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} },
-	.host_flags	= IDE_HFLAG_LEGACY_IRQS | IDE_HFLAG_NO_AUTODMA,
+	.host_flags	= IDE_HFLAG_NO_AUTODMA,
 	.pio_mask	= ATA_PIO4,
 	.mwdma_mask	= ATA_MWDMA2,
 };
diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c
index 40b4b94a4288..f55d7d6313e8 100644
--- a/drivers/ide/slc90e66.c
+++ b/drivers/ide/slc90e66.c
@@ -136,7 +136,6 @@ static const struct ide_port_info slc90e66_chipset __devinitdata = {
 	.name		= DRV_NAME,
 	.enablebits	= { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} },
 	.port_ops	= &slc90e66_port_ops,
-	.host_flags	= IDE_HFLAG_LEGACY_IRQS,
 	.pio_mask	= ATA_PIO4,
 	.swdma_mask	= ATA_SWDMA2_ONLY,
 	.mwdma_mask	= ATA_MWDMA12_ONLY,
diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c
index 6092fe3f409d..a41eab5cb5df 100644
--- a/drivers/ide/via82cxxx.c
+++ b/drivers/ide/via82cxxx.c
@@ -443,16 +443,6 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i
 	if ((via_config->flags & VIA_NO_UNMASK) == 0)
 		d.host_flags |= IDE_HFLAG_UNMASK_IRQS;
 
-#ifdef CONFIG_PPC_CHRP
-	if (machine_is(chrp) && _chrp_type == _CHRP_Pegasos)
-		d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
-#endif
-
-#ifdef CONFIG_AMIGAONE
-	if (machine_is(amigaone))
-		d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
-#endif
-
 	d.udma_mask = via_config->udma_mask;
 
 	vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 0c87ed52a875..bfd07b866b6a 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1349,10 +1349,6 @@ enum {
 	IDE_HFLAG_ERROR_STOPS_FIFO	= (1 << 19),
 	/* serialize ports */
 	IDE_HFLAG_SERIALIZE		= (1 << 20),
-	/* use legacy IRQs */
-	IDE_HFLAG_LEGACY_IRQS		= (1 << 21),
-	/* force use of legacy IRQs */
-	IDE_HFLAG_FORCE_LEGACY_IRQS	= (1 << 22),
 	/* host is TRM290 */
 	IDE_HFLAG_TRM290		= (1 << 23),
 	/* use 32-bit I/O ops */
-- 
cgit v1.2.3


From 8b07ed26f8eb73d4f55a9d852712cd588c45ff51 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:52 +0100
Subject: ide: remove no longer needed IRQ fallback code from hwif_init()

Then remove no longer used __ide_default_irq().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-probe.c | 30 ++++--------------------------
 include/linux/ide.h     | 15 ---------------
 2 files changed, 4 insertions(+), 41 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 80967307f2bb..ebc328c2e7ee 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1070,14 +1070,9 @@ static void drive_release_dev (struct device *dev)
 
 static int hwif_init(ide_hwif_t *hwif)
 {
-	int old_irq;
-
 	if (!hwif->irq) {
-		hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
-		if (!hwif->irq) {
-			printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name);
-			return 0;
-		}
+		printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name);
+		return 0;
 	}
 
 	if (register_blkdev(hwif->major, hwif->name))
@@ -1095,29 +1090,12 @@ static int hwif_init(ide_hwif_t *hwif)
 
 	sg_init_table(hwif->sg_table, hwif->sg_max_nents);
 	
-	if (init_irq(hwif) == 0)
-		goto done;
-
-	old_irq = hwif->irq;
-	/*
-	 *	It failed to initialise. Find the default IRQ for 
-	 *	this port and try that.
-	 */
-	hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
-	if (!hwif->irq) {
-		printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n",
-			hwif->name, old_irq);
-		goto out;
-	}
 	if (init_irq(hwif)) {
-		printk(KERN_ERR "%s: probed IRQ %d and default IRQ %d failed\n",
-			hwif->name, old_irq, hwif->irq);
+		printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n",
+			hwif->name, hwif->irq);
 		goto out;
 	}
-	printk(KERN_WARNING "%s: probed IRQ %d failed, using default\n",
-		hwif->name, hwif->irq);
 
-done:
 	blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS,
 			    THIS_MODULE, ata_probe, ata_lock, hwif);
 	return 1;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index bfd07b866b6a..31e492c7bdef 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -193,21 +193,6 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
 	hw->io_ports.ctl_addr = ctl_addr;
 }
 
-/* for IDE PCI controllers in legacy mode, temporary */
-static inline int __ide_default_irq(unsigned long base)
-{
-	switch (base) {
-#ifdef CONFIG_IA64
-	case 0x1f0: return isa_irq_to_vector(14);
-	case 0x170: return isa_irq_to_vector(15);
-#else
-	case 0x1f0: return 14;
-	case 0x170: return 15;
-#endif
-	}
-	return 0;
-}
-
 #if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \
     defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \
     || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64)
-- 
cgit v1.2.3


From 2ed0ef543ae3f3ea4f8bd0433fb1fed22625a309 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:53 +0100
Subject: ide: fix ->init_chipset method to return 'int' value

* Return 0 instead of dev->irq in ->init_chipset implementations.

* Fix ->init_chipset method to return 'int' value instead of
  'unsigned int' one.

This fixes ->init_chipset handling for host drivers (cs5530, hpt366
and pdc202xx_new) for which it is possible for this method to fail.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/aec62xx.c      | 4 ++--
 drivers/ide/alim15x3.c     | 2 +-
 drivers/ide/amd74xx.c      | 4 ++--
 drivers/ide/cmd64x.c       | 2 +-
 drivers/ide/cs5530.c       | 2 +-
 drivers/ide/delkin_cb.c    | 2 +-
 drivers/ide/hpt366.c       | 4 ++--
 drivers/ide/it821x.c       | 2 +-
 drivers/ide/pdc202xx_new.c | 4 ++--
 drivers/ide/pdc202xx_old.c | 4 ++--
 drivers/ide/piix.c         | 2 +-
 drivers/ide/serverworks.c  | 4 ++--
 drivers/ide/setup-pci.c    | 2 +-
 drivers/ide/siimage.c      | 2 +-
 drivers/ide/sis5513.c      | 2 +-
 drivers/ide/sl82c105.c     | 4 ++--
 drivers/ide/via82cxxx.c    | 2 +-
 include/linux/ide.h        | 4 ++--
 18 files changed, 26 insertions(+), 26 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c
index 4485b9c6f0e6..878f8ec6dbe1 100644
--- a/drivers/ide/aec62xx.c
+++ b/drivers/ide/aec62xx.c
@@ -139,7 +139,7 @@ static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
 	drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0);
 }
 
-static unsigned int init_chipset_aec62xx(struct pci_dev *dev)
+static int init_chipset_aec62xx(struct pci_dev *dev)
 {
 	/* These are necessary to get AEC6280 Macintosh cards to work */
 	if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
@@ -156,7 +156,7 @@ static unsigned int init_chipset_aec62xx(struct pci_dev *dev)
 		pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
 	}
 
-	return dev->irq;
+	return 0;
 }
 
 static u8 atp86x_cable_detect(ide_hwif_t *hwif)
diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
index 66f43083408b..d3513b6b8530 100644
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -212,7 +212,7 @@ static int ali15x3_dma_setup(ide_drive_t *drive)
  *	appropriate also sets up the 1533 southbridge.
  */
 
-static unsigned int init_chipset_ali15x3(struct pci_dev *dev)
+static int init_chipset_ali15x3(struct pci_dev *dev)
 {
 	unsigned long flags;
 	u8 tmpbyte;
diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c
index 0b51921e63e6..628cd2e5fed8 100644
--- a/drivers/ide/amd74xx.c
+++ b/drivers/ide/amd74xx.c
@@ -140,7 +140,7 @@ static void amd7411_cable_detect(struct pci_dev *dev)
  * The initialization callback.  Initialize drive independent registers.
  */
 
-static unsigned int init_chipset_amd74xx(struct pci_dev *dev)
+static int init_chipset_amd74xx(struct pci_dev *dev)
 {
 	u8 t = 0, offset = amd_offset(dev);
 
@@ -172,7 +172,7 @@ static unsigned int init_chipset_amd74xx(struct pci_dev *dev)
 		t |= 0xf0;
 	pci_write_config_byte(dev, AMD_IDE_CONFIG + offset, t);
 
-	return dev->irq;
+	return 0;
 }
 
 static u8 amd_cable_detect(ide_hwif_t *hwif)
diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c
index 2f9688d87ecd..aeee036b1503 100644
--- a/drivers/ide/cmd64x.c
+++ b/drivers/ide/cmd64x.c
@@ -333,7 +333,7 @@ static int cmd646_1_dma_end(ide_drive_t *drive)
 	return (dma_stat & 7) != 4;
 }
 
-static unsigned int init_chipset_cmd64x(struct pci_dev *dev)
+static int init_chipset_cmd64x(struct pci_dev *dev)
 {
 	u8 mrdmode = 0;
 
diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c
index d8ede85fe17f..8e8b35a89901 100644
--- a/drivers/ide/cs5530.c
+++ b/drivers/ide/cs5530.c
@@ -135,7 +135,7 @@ static void cs5530_set_dma_mode(ide_drive_t *drive, const u8 mode)
  *	Initialize the cs5530 bridge for reliable IDE DMA operation.
  */
 
-static unsigned int init_chipset_cs5530(struct pci_dev *dev)
+static int init_chipset_cs5530(struct pci_dev *dev)
 {
 	struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
 
diff --git a/drivers/ide/delkin_cb.c b/drivers/ide/delkin_cb.c
index 8f1b2d9f0513..bacb1194c9c9 100644
--- a/drivers/ide/delkin_cb.c
+++ b/drivers/ide/delkin_cb.c
@@ -46,7 +46,7 @@ static const struct ide_port_ops delkin_cb_port_ops = {
 	.quirkproc		= ide_undecoded_slave,
 };
 
-static unsigned int delkin_cb_init_chipset(struct pci_dev *dev)
+static int delkin_cb_init_chipset(struct pci_dev *dev)
 {
 	unsigned long base = pci_resource_start(dev, 0);
 	int i;
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index 3eb9b5c63a0f..d3b3e824f445 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -995,7 +995,7 @@ static void hpt3xx_disable_fast_irq(struct pci_dev *dev, u8 mcr_addr)
 		pci_write_config_byte(dev, mcr_addr + 1, new_mcr);
 }
 
-static unsigned int init_chipset_hpt366(struct pci_dev *dev)
+static int init_chipset_hpt366(struct pci_dev *dev)
 {
 	unsigned long io_base	= pci_resource_start(dev, 4);
 	struct hpt_info *info	= hpt3xx_get_info(&dev->dev);
@@ -1237,7 +1237,7 @@ static unsigned int init_chipset_hpt366(struct pci_dev *dev)
 	hpt3xx_disable_fast_irq(dev, 0x50);
 	hpt3xx_disable_fast_irq(dev, 0x54);
 
-	return dev->irq;
+	return 0;
 }
 
 static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
index 13b8153112ed..6b9fc950b4af 100644
--- a/drivers/ide/it821x.c
+++ b/drivers/ide/it821x.c
@@ -603,7 +603,7 @@ static void it8212_disable_raid(struct pci_dev *dev)
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
 }
 
-static unsigned int init_chipset_it821x(struct pci_dev *dev)
+static int init_chipset_it821x(struct pci_dev *dev)
 {
 	u8 conf;
 	static char *mode[2] = { "pass through", "smart" };
diff --git a/drivers/ide/pdc202xx_new.c b/drivers/ide/pdc202xx_new.c
index f21290c4b447..b68906c3c17e 100644
--- a/drivers/ide/pdc202xx_new.c
+++ b/drivers/ide/pdc202xx_new.c
@@ -325,7 +325,7 @@ static void apple_kiwi_init(struct pci_dev *pdev)
 }
 #endif /* CONFIG_PPC_PMAC */
 
-static unsigned int init_chipset_pdcnew(struct pci_dev *dev)
+static int init_chipset_pdcnew(struct pci_dev *dev)
 {
 	const char *name = DRV_NAME;
 	unsigned long dma_base = pci_resource_start(dev, 4);
@@ -444,7 +444,7 @@ static unsigned int init_chipset_pdcnew(struct pci_dev *dev)
 #endif
 
  out:
-	return dev->irq;
+	return 0;
 }
 
 static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev)
diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c
index 97193323aebf..cba66ebce4e3 100644
--- a/drivers/ide/pdc202xx_old.c
+++ b/drivers/ide/pdc202xx_old.c
@@ -264,7 +264,7 @@ static void pdc202xx_dma_timeout(ide_drive_t *drive)
 	ide_dma_timeout(drive);
 }
 
-static unsigned int init_chipset_pdc202xx(struct pci_dev *dev)
+static int init_chipset_pdc202xx(struct pci_dev *dev)
 {
 	unsigned long dmabase = pci_resource_start(dev, 4);
 	u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0;
@@ -290,7 +290,7 @@ static unsigned int init_chipset_pdc202xx(struct pci_dev *dev)
 		printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN");
 	}
 out:
-	return dev->irq;
+	return 0;
 }
 
 static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev,
diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c
index 42c2e3522d74..2aa699933064 100644
--- a/drivers/ide/piix.c
+++ b/drivers/ide/piix.c
@@ -204,7 +204,7 @@ static void piix_set_dma_mode(ide_drive_t *drive, const u8 speed)
  *	out to be nice and simple.
  */
 
-static unsigned int init_chipset_ich(struct pci_dev *dev)
+static int init_chipset_ich(struct pci_dev *dev)
 {
 	u32 extra = 0;
 
diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c
index 14718e73991e..b6554ef92716 100644
--- a/drivers/ide/serverworks.c
+++ b/drivers/ide/serverworks.c
@@ -175,7 +175,7 @@ static void svwks_set_dma_mode(ide_drive_t *drive, const u8 speed)
 	pci_write_config_byte(dev, 0x54, ultra_enable);
 }
 
-static unsigned int init_chipset_svwks(struct pci_dev *dev)
+static int init_chipset_svwks(struct pci_dev *dev)
 {
 	unsigned int reg;
 	u8 btr;
@@ -270,7 +270,7 @@ static unsigned int init_chipset_svwks(struct pci_dev *dev)
 		pci_write_config_byte(dev, 0x5A, btr);
 	}
 
-	return dev->irq;
+	return 0;
 }
 
 static u8 ata66_svwks_svwks(ide_hwif_t *hwif)
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 79e3244691ec..75e3beca86f0 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -524,7 +524,7 @@ static int do_ide_setup_pci_device(struct pci_dev *dev,
 		if (noisy)
 			printk(KERN_INFO "%s %s: not 100%% native mode: will "
 				"probe irqs later\n", d->name, pci_name(dev));
-		pciirq = ret;
+		pciirq = 0;
 	} else if (!pciirq && noisy) {
 		printk(KERN_WARNING "%s %s: bad irq (%d): will probe later\n",
 			d->name, pci_name(dev), pciirq);
diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c
index cb2b352b876b..1811ae9cd843 100644
--- a/drivers/ide/siimage.c
+++ b/drivers/ide/siimage.c
@@ -464,7 +464,7 @@ static void sil_sata_pre_reset(ide_drive_t *drive)
  *	to 133 MHz clocking if the system isn't already set up to do it.
  */
 
-static unsigned int init_chipset_siimage(struct pci_dev *dev)
+static int init_chipset_siimage(struct pci_dev *dev)
 {
 	struct ide_host *host = pci_get_drvdata(dev);
 	void __iomem *ioaddr = host->host_priv;
diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c
index d2d54aaea13a..afca22beaadf 100644
--- a/drivers/ide/sis5513.c
+++ b/drivers/ide/sis5513.c
@@ -447,7 +447,7 @@ static int __devinit sis_find_family(struct pci_dev *dev)
 	return chipset_family;
 }
 
-static unsigned int init_chipset_sis5513(struct pci_dev *dev)
+static int init_chipset_sis5513(struct pci_dev *dev)
 {
 	/* Make general config ops here
 	   1/ tell IDE channels to operate in Compatibility mode only
diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c
index 6297956507c0..dba213c51baa 100644
--- a/drivers/ide/sl82c105.c
+++ b/drivers/ide/sl82c105.c
@@ -271,7 +271,7 @@ static u8 sl82c105_bridge_revision(struct pci_dev *dev)
  * channel 0 here at least, but channel 1 has to be enabled by
  * firmware or arch code. We still set both to 16 bits mode.
  */
-static unsigned int init_chipset_sl82c105(struct pci_dev *dev)
+static int init_chipset_sl82c105(struct pci_dev *dev)
 {
 	u32 val;
 
@@ -281,7 +281,7 @@ static unsigned int init_chipset_sl82c105(struct pci_dev *dev)
 	val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
 	pci_write_config_dword(dev, 0x40, val);
 
-	return dev->irq;
+	return 0;
 }
 
 static const struct ide_port_ops sl82c105_port_ops = {
diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c
index a41eab5cb5df..3ff7231e4858 100644
--- a/drivers/ide/via82cxxx.c
+++ b/drivers/ide/via82cxxx.c
@@ -267,7 +267,7 @@ static void via_cable_detect(struct via82cxxx_dev *vdev, u32 u)
  *	and initialize its drive independent registers.
  */
 
-static unsigned int init_chipset_via82cxxx(struct pci_dev *dev)
+static int init_chipset_via82cxxx(struct pci_dev *dev)
 {
 	struct ide_host *host = pci_get_drvdata(dev);
 	struct via82cxxx_dev *vdev = host->host_priv;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 31e492c7bdef..117dd171e70b 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -851,7 +851,7 @@ struct ide_host {
 	ide_hwif_t	*ports[MAX_HOST_PORTS + 1];
 	unsigned int	n_ports;
 	struct device	*dev[2];
-	unsigned int	(*init_chipset)(struct pci_dev *);
+	int		(*init_chipset)(struct pci_dev *);
 	irq_handler_t	irq_handler;
 	unsigned long	host_flags;
 	void		*host_priv;
@@ -1361,7 +1361,7 @@ enum {
 
 struct ide_port_info {
 	char			*name;
-	unsigned int		(*init_chipset)(struct pci_dev *);
+	int			(*init_chipset)(struct pci_dev *);
 	void			(*init_iops)(ide_hwif_t *);
 	void                    (*init_hwif)(ide_hwif_t *);
 	int			(*init_dma)(ide_hwif_t *,
-- 
cgit v1.2.3


From 86ccf37c6acd74cf7e4b7751ee045de19943c5a0 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:53 +0100
Subject: ide: remove pciirq argument from ide_pci_setup_ports()

* Set ->irq explicitly in cs5520.c.

* Remove irq argument from ide_hw_configure().

* Remove pciirq argument from ide_pci_setup_ports().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/cs5520.c    |  3 ++-
 drivers/ide/setup-pci.c | 13 +++++--------
 include/linux/ide.h     |  2 +-
 3 files changed, 8 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c
index d003bec56ff9..58fb90e5b763 100644
--- a/drivers/ide/cs5520.c
+++ b/drivers/ide/cs5520.c
@@ -133,7 +133,8 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
 	 *	do all the device setup for us
 	 */
 
-	ide_pci_setup_ports(dev, d, 14, &hw[0], &hws[0]);
+	ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
+	hw[0].irq = 14;
 
 	return ide_host_add(d, hws, NULL);
 }
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 75e3beca86f0..24bc884826fc 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -305,7 +305,6 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *
  *	@dev: PCI device holding interface
  *	@d: IDE port info
  *	@port: port number
- *	@irq: PCI IRQ
  *	@hw: hw_regs_t instance corresponding to this port
  *
  *	Perform the initial set up for the hardware interface structure. This
@@ -316,7 +315,7 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *
  */
 
 static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d,
-			    unsigned int port, int irq, hw_regs_t *hw)
+			    unsigned int port, hw_regs_t *hw)
 {
 	unsigned long ctl = 0, base = 0;
 
@@ -344,7 +343,6 @@ static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d,
 	}
 
 	memset(hw, 0, sizeof(*hw));
-	hw->irq = irq;
 	hw->dev = &dev->dev;
 	hw->chipset = d->chipset ? d->chipset : ide_pci;
 	ide_std_init_ports(hw, base, ctl | 2);
@@ -448,7 +446,6 @@ out:
  *	ide_pci_setup_ports	-	configure ports/devices on PCI IDE
  *	@dev: PCI device
  *	@d: IDE port info
- *	@pciirq: IRQ line
  *	@hw: hw_regs_t instances corresponding to this PCI IDE device
  *	@hws: hw_regs_t pointers table to update
  *
@@ -462,7 +459,7 @@ out:
  */
 
 void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d,
-			 int pciirq, hw_regs_t *hw, hw_regs_t **hws)
+			 hw_regs_t *hw, hw_regs_t **hws)
 {
 	int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port;
 	u8 tmp;
@@ -481,7 +478,7 @@ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d,
 			continue;	/* port not enabled */
 		}
 
-		if (ide_hw_configure(dev, d, port, pciirq, hw + port))
+		if (ide_hw_configure(dev, d, port, hw + port))
 			continue;
 
 		*(hws + port) = hw + port;
@@ -549,7 +546,7 @@ int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d,
 	if (ret < 0)
 		goto out;
 
-	ide_pci_setup_ports(dev, d, 0, &hw[0], &hws[0]);
+	ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
 
 	host = ide_host_alloc(d, hws);
 	if (host == NULL) {
@@ -595,7 +592,7 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
 		if (ret < 0)
 			goto out;
 
-		ide_pci_setup_ports(pdev[i], d, 0, &hw[i*2], &hws[i*2]);
+		ide_pci_setup_ports(pdev[i], d, &hw[i*2], &hws[i*2]);
 	}
 
 	host = ide_host_alloc(d, hws);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 117dd171e70b..24e265af4f1c 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1265,7 +1265,7 @@ static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev)
 	return 0;
 }
 
-void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int,
+void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *,
 			 hw_regs_t *, hw_regs_t **);
 void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
 
-- 
cgit v1.2.3


From 662641d98b4396b48f513726d141c5f646c08259 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:54 +0100
Subject: frv: remove <asm/ide.h>

* Remove superfluous <asm/{setup,io,irq}.h> includes.

* Remove <asm/ide.h>.

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 include/asm-frv/ide.h | 24 ------------------------
 include/linux/ide.h   |  4 ++--
 2 files changed, 2 insertions(+), 26 deletions(-)
 delete mode 100644 include/asm-frv/ide.h

(limited to 'include')

diff --git a/include/asm-frv/ide.h b/include/asm-frv/ide.h
deleted file mode 100644
index 361076611855..000000000000
--- a/include/asm-frv/ide.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* ide.h: FRV IDE declarations
- *
- * Copyright (C) 2004 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 License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_IDE_H
-#define _ASM_IDE_H
-
-#ifdef __KERNEL__
-
-#include <asm/setup.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#include <asm-generic/ide_iops.h>
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_IDE_H */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 24e265af4f1c..047b74621dd4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -193,8 +193,8 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
 	hw->io_ports.ctl_addr = ctl_addr;
 }
 
-#if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \
-    defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \
+#if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \
+    defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \
     || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64)
 #include <asm/ide.h>
 #else
-- 
cgit v1.2.3


From d45b70ab9bbf1a46ae52972d532f9e267b8d39d9 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:54 +0100
Subject: mn10300: remove <asm/ide.h>

* Remove superfluous <asm/intctl-regs.h> include.

* Remove no longer used SUPPORT_SLOW_DATA_PORTS define.

* Move defining SUPPORT_VLB_SYNC to <linux/ide.h>.

* Use __ide_mm_*() macros from <asm-generic/ide_iops.h>
  (MN10300 uses only memory-mapped I/O).

* Remove <asm/ide.h>.

While at it:

* Remove superfluous SPARC64 #ifdef from <linux/ide.h>.

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 include/asm-mn10300/ide.h | 39 ---------------------------------------
 include/linux/ide.h       |  5 ++---
 2 files changed, 2 insertions(+), 42 deletions(-)
 delete mode 100644 include/asm-mn10300/ide.h

(limited to 'include')

diff --git a/include/asm-mn10300/ide.h b/include/asm-mn10300/ide.h
deleted file mode 100644
index 6adcdd92e83d..000000000000
--- a/include/asm-mn10300/ide.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* MN10300 Arch-specific IDE code
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * - Derived from include/asm-i386/ide.h
- *
- * 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.
- */
-
-#ifndef _ASM_IDE_H
-#define _ASM_IDE_H
-
-#ifdef __KERNEL__
-
-#include <asm/intctl-regs.h>
-
-#undef SUPPORT_SLOW_DATA_PORTS
-#define SUPPORT_SLOW_DATA_PORTS 0
-
-#undef SUPPORT_VLB_SYNC
-#define SUPPORT_VLB_SYNC 0
-
-/*
- * some bits needed for parts of the IDE subsystem to compile
- */
-#define __ide_mm_insw(port, addr, n) \
-	insw((unsigned long) (port), (addr), (n))
-#define __ide_mm_insl(port, addr, n) \
-	insl((unsigned long) (port), (addr), (n))
-#define __ide_mm_outsw(port, addr, n) \
-	outsw((unsigned long) (port), (addr), (n))
-#define __ide_mm_outsl(port, addr, n) \
-	outsl((unsigned long) (port), (addr), (n))
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_IDE_H */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 047b74621dd4..bbce9b2bdfc4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -26,7 +26,7 @@
 #include <asm/io.h>
 #include <asm/mutex.h>
 
-#if defined(CONFIG_CRIS) || defined(CONFIG_FRV)
+#if defined(CONFIG_CRIS) || defined(CONFIG_FRV) || defined(CONFIG_MN10300)
 # define SUPPORT_VLB_SYNC 0
 #else
 # define SUPPORT_VLB_SYNC 1
@@ -194,8 +194,7 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
 }
 
 #if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \
-    defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \
-    || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64)
+    defined(CONFIG_PARISC) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
 #include <asm/ide.h>
 #else
 #include <asm-generic/ide_iops.h>
-- 
cgit v1.2.3


From 552d3a99bdce8a0d7f9abe3766fb3655ef5757dc Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:58 +0100
Subject: ide: remove broken EXABYTENEST support

do_identify() marks EXABYTENEST device as non-present and frees
drive->id so enable_nest() has absolutely no chance of working.

The code was like this since at least 2.6.12-rc2 and nobody
has noticed so just remove broken EXABYTENEST support.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-probe.c | 37 -------------------------------------
 include/linux/ata.h     |  2 --
 2 files changed, 39 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 5e0c3fb3b43a..29649d09dbb8 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -465,37 +465,6 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
 	return rc;
 }
 
-/*
- *
- */
-static void enable_nest (ide_drive_t *drive)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
-	u8 stat;
-
-	printk(KERN_INFO "%s: enabling %s -- ",
-		hwif->name, (char *)&drive->id[ATA_ID_PROD]);
-
-	SELECT_DRIVE(drive);
-	msleep(50);
-	tp_ops->exec_command(hwif, ATA_EXABYTE_ENABLE_NEST);
-
-	if (ide_busy_sleep(hwif, WAIT_WORSTCASE, 0)) {
-		printk(KERN_CONT "failed (timeout)\n");
-		return;
-	}
-
-	msleep(50);
-
-	stat = tp_ops->read_status(hwif);
-
-	if (!OK_STAT(stat, 0, BAD_STAT))
-		printk(KERN_CONT "failed (status = 0x%02x)\n", stat);
-	else
-		printk(KERN_CONT "success\n");
-}
-
 /**
  *	probe_for_drives	-	upper level drive probe
  *	@drive: drive to probe for
@@ -534,7 +503,6 @@ static u8 probe_for_drive(ide_drive_t *drive)
 
 	/* skip probing? */
 	if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0) {
-retry:
 		/* if !(success||timed-out) */
 		if (do_probe(drive, ATA_CMD_ID_ATA) >= 2)
 			/* look for ATAPI device */
@@ -544,11 +512,6 @@ retry:
 			/* drive not found */
 			return 0;
 
-		if (strstr(m, "E X A B Y T E N E S T")) {
-			enable_nest(drive);
-			goto retry;
-		}
-
 		/* identification failed? */
 		if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
 			if (drive->media == ide_disk) {
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 9a061accd8b8..68132c4a0e91 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -244,8 +244,6 @@ enum {
 	ATA_CMD_MEDIA_UNLOCK	= 0xDF,
 	/* marked obsolete in the ATA/ATAPI-7 spec */
 	ATA_CMD_RESTORE		= 0x10,
-	/* EXABYTE specific */
-	ATA_EXABYTE_ENABLE_NEST	= 0xF0,
 
 	/* READ_LOG_EXT pages */
 	ATA_LOG_SATA_NCQ	= 0x10,
-- 
cgit v1.2.3


From 2ebe1d9efed5f232afc8d00901d0959c9814bce3 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 24 Mar 2009 23:22:59 +0100
Subject: ide: use try_to_identify() in ide_driveid_update()

* Pass pointer to buffer for IDENTIFY data to do_identify()
  and try_to_identify().

* Un-static try_to_identify() and use it in ide_driveid_update().

* Rename try_to_identify() to ide_dev_read_id().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-iops.c  | 54 ++++---------------------------------------------
 drivers/ide/ide-probe.c | 24 +++++++++++-----------
 include/linux/ide.h     |  2 ++
 3 files changed, 18 insertions(+), 62 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index affbc603987a..317c5dadd7c0 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -289,65 +289,19 @@ no_80w:
 
 int ide_driveid_update(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
 	u16 *id;
-	unsigned long flags;
-	int use_altstatus = 0, rc;
-	u8 a, uninitialized_var(s);
+	int rc;
 
 	id = kmalloc(SECTOR_SIZE, GFP_ATOMIC);
 	if (id == NULL)
 		return 0;
 
-	/*
-	 * Re-read drive->id for possible DMA mode
-	 * change (copied from ide-probe.c)
-	 */
-
 	SELECT_MASK(drive, 1);
-	tp_ops->set_irq(hwif, 0);
-	msleep(50);
-
-	if (hwif->io_ports.ctl_addr &&
-	    (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0) {
-		a = tp_ops->read_altstatus(hwif);
-		s = tp_ops->read_status(hwif);
-		if ((a ^ s) & ~ATA_IDX)
-			/* ancient Seagate drives, broken interfaces */
-			printk(KERN_INFO "%s: probing with STATUS(0x%02x) "
-					 "instead of ALTSTATUS(0x%02x)\n",
-					 drive->name, s, a);
-		else
-			/* use non-intrusive polling */
-			use_altstatus = 1;
-	}
-
-	tp_ops->exec_command(hwif, ATA_CMD_ID_ATA);
-
-	if (ide_busy_sleep(hwif, WAIT_WORSTCASE / 2, use_altstatus)) {
-		rc = 1;
-		goto out_err;
-	}
-
-	msleep(50);	/* wait for IRQ and ATA_DRQ */
-
-	s = tp_ops->read_status(hwif);
+	rc = ide_dev_read_id(drive, ATA_CMD_ID_ATA, id);
+	SELECT_MASK(drive, 0);
 
-	if (!OK_STAT(s, ATA_DRQ, BAD_R_STAT)) {
-		rc = 2;
+	if (rc)
 		goto out_err;
-	}
-
-	local_irq_save(flags);
-	tp_ops->input_data(drive, NULL, id, SECTOR_SIZE);
-	local_irq_restore(flags);
-
-	(void)tp_ops->read_status(hwif); /* clear drive IRQ */
-
-	ide_fix_driveid(id);
-
-	SELECT_MASK(drive, 0);
 
 	drive->id[ATA_ID_UDMA_MODES]  = id[ATA_ID_UDMA_MODES];
 	drive->id[ATA_ID_MWDMA_MODES] = id[ATA_ID_MWDMA_MODES];
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 3f9faef5e50e..974067043fba 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -181,16 +181,16 @@ static void ide_classify_atapi_dev(ide_drive_t *drive)
  *	do_identify	-	identify a drive
  *	@drive: drive to identify 
  *	@cmd: command used
+ *	@id: buffer for IDENTIFY data
  *
  *	Called when we have issued a drive identify command to
  *	read and parse the results. This function is run with
  *	interrupts disabled. 
  */
 
-static void do_identify(ide_drive_t *drive, u8 cmd)
+static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	u16 *id = drive->id;
 	char *m = (char *)&id[ATA_ID_PROD];
 	unsigned long flags;
 	int bswap = 1;
@@ -240,19 +240,19 @@ err_misc:
 }
 
 /**
- *	try_to_identify	-	send ATA/ATAPI identify
+ *	ide_dev_read_id	-	send ATA/ATAPI IDENTIFY command
  *	@drive: drive to identify
  *	@cmd: command to use
+ *	@id: buffer for IDENTIFY data
  *
- *	try_to_identify() sends an ATA(PI) IDENTIFY request to a drive
- *	and waits for a response.
+ *	Sends an ATA(PI) IDENTIFY request to a drive and waits for a response.
  *
  *	Returns:	0  device was identified
  *			1  device timed-out (no response to identify request)
  *			2  device aborted the command (refused to identify itself)
  */
 
-static int try_to_identify(ide_drive_t *drive, u8 cmd)
+int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -312,7 +312,7 @@ static int try_to_identify(ide_drive_t *drive, u8 cmd)
 
 	if (OK_STAT(s, ATA_DRQ, BAD_R_STAT)) {
 		/* drive returned ID */
-		do_identify(drive, cmd);
+		do_identify(drive, cmd, id);
 		/* drive responded with ID */
 		rc = 0;
 		/* clear drive IRQ */
@@ -378,6 +378,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
+	u16 *id = drive->id;
 	int rc;
 	u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat;
 
@@ -413,11 +414,10 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
 
 	if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) ||
 	    present || cmd == ATA_CMD_ID_ATAPI) {
-		/* send cmd and wait */
-		if ((rc = try_to_identify(drive, cmd))) {
+		rc = ide_dev_read_id(drive, cmd, id);
+		if (rc)
 			/* failed: try again */
-			rc = try_to_identify(drive,cmd);
-		}
+			rc = ide_dev_read_id(drive, cmd, id);
 
 		stat = tp_ops->read_status(hwif);
 
@@ -432,7 +432,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
 			msleep(50);
 			tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
 			(void)ide_busy_sleep(hwif, WAIT_WORSTCASE, 0);
-			rc = try_to_identify(drive, cmd);
+			rc = ide_dev_read_id(drive, cmd, id);
 		}
 
 		/* ensure drive IRQ is clear */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index bbce9b2bdfc4..854eba8b2ba3 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1235,6 +1235,8 @@ int ide_no_data_taskfile(ide_drive_t *, ide_task_t *);
 
 int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
 
+int ide_dev_read_id(ide_drive_t *, u8, u16 *);
+
 extern int ide_driveid_update(ide_drive_t *);
 extern int ide_config_drive_speed(ide_drive_t *, u8);
 extern u8 eighty_ninty_three (ide_drive_t *);
-- 
cgit v1.2.3


From 1662e3a7f076e51e3073faf9ce77157b529c475b Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Wed, 18 Mar 2009 14:28:53 -0400
Subject: USB: add quirk to avoid config and interface strings

Apparently the Configuration and Interface strings aren't used as
often as the Vendor, Product, and Serial strings.  In at least one
device (a Saitek Cyborg Gold 3D joystick), attempts to read the
Configuration string cause the device to stop responding to Control
requests.

This patch (as1226) adds a quirks flag, telling the kernel not to
read a device's Configuration or Interface strings, together with a
new quirk for the offending joystick.

Reported-by: Melchior FRANZ <melchior.franz@gmail.com>
Tested-by: Melchior FRANZ <melchior.franz@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>  [2.6.28 and 2.6.29, nothing earlier]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/core/message.c | 3 ++-
 drivers/usb/core/quirks.c  | 4 ++++
 drivers/usb/core/sysfs.c   | 4 +++-
 include/linux/usb/quirks.h | 3 +++
 4 files changed, 12 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 49e7f56e0d7f..3922fa915ed2 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1719,7 +1719,8 @@ free_interfaces:
 	}
 	kfree(new_interfaces);
 
-	if (cp->string == NULL)
+	if (cp->string == NULL &&
+			!(dev->quirks & USB_QUIRK_CONFIG_INTF_STRINGS))
 		cp->string = usb_cache_string(dev, cp->desc.iConfiguration);
 
 	/* Now that all the interfaces are set up, register them
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index c070b34b669d..ab93918d9207 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -54,6 +54,10 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
 	  USB_QUIRK_STRING_FETCH_255 },
 
+	/* Saitek Cyborg Gold Joystick */
+	{ USB_DEVICE(0x06a3, 0x0006), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
 	/* M-Systems Flash Disk Pioneers */
 	{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
 
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 4cc2456ef3be..c66789197927 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/usb.h>
+#include <linux/usb/quirks.h>
 #include "usb.h"
 
 /* Active configuration fields */
@@ -813,7 +814,8 @@ int usb_create_sysfs_intf_files(struct usb_interface *intf)
 	if (intf->sysfs_files_created || intf->unregistering)
 		return 0;
 
-	if (alt->string == NULL)
+	if (alt->string == NULL &&
+			!(udev->quirks & USB_QUIRK_CONFIG_INTF_STRINGS))
 		alt->string = usb_cache_string(udev, alt->desc.iInterface);
 	if (alt->string)
 		retval = device_create_file(&intf->dev, &dev_attr_interface);
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 7f6c603db654..2526f3bbd273 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -16,4 +16,7 @@
 /* device can't handle Set-Interface requests */
 #define USB_QUIRK_NO_SET_INTF		0x00000004
 
+/* device can't handle its Configuration or Interface strings */
+#define USB_QUIRK_CONFIG_INTF_STRINGS	0x00000008
+
 #endif /* __LINUX_USB_QUIRKS_H */
-- 
cgit v1.2.3


From c2344f13b59e007d782a3e591ebc551bc583a8b7 Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Sat, 24 Jan 2009 23:54:31 -0800
Subject: USB: gpio_vbus: add delayed vbus_session calls

Call usb_gadget_vbus_connect() and ...disconnect() from a
workqueue rather than from an irq handler, allowing msleep()
calls in vbus_session.  Update kerneldoc to match.

[ dbrownell@users.sourceforge.net: more kerneldoc updates ]

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/otg/gpio_vbus.c | 42 +++++++++++++++++++++++++++++++-----------
 include/linux/usb/gadget.h  |  6 ++++--
 include/linux/usb/otg.h     |  4 ++++
 3 files changed, 39 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/otg/gpio_vbus.c
index 63a6036f04be..1c26c94513e9 100644
--- a/drivers/usb/otg/gpio_vbus.c
+++ b/drivers/usb/otg/gpio_vbus.c
@@ -13,6 +13,7 @@
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/usb.h>
+#include <linux/workqueue.h>
 
 #include <linux/regulator/consumer.h>
 
@@ -34,6 +35,7 @@ struct gpio_vbus_data {
 	struct regulator       *vbus_draw;
 	int			vbus_draw_enabled;
 	unsigned		mA;
+	struct work_struct	work;
 };
 
 
@@ -76,24 +78,26 @@ static void set_vbus_draw(struct gpio_vbus_data *gpio_vbus, unsigned mA)
 	gpio_vbus->mA = mA;
 }
 
-/* VBUS change IRQ handler */
-static irqreturn_t gpio_vbus_irq(int irq, void *data)
+static int is_vbus_powered(struct gpio_vbus_mach_info *pdata)
 {
-	struct platform_device *pdev = data;
-	struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data;
-	struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev);
-	int gpio, vbus;
+	int vbus;
 
 	vbus = gpio_get_value(pdata->gpio_vbus);
 	if (pdata->gpio_vbus_inverted)
 		vbus = !vbus;
 
-	dev_dbg(&pdev->dev, "VBUS %s (gadget: %s)\n",
-		vbus ? "supplied" : "inactive",
-		gpio_vbus->otg.gadget ? gpio_vbus->otg.gadget->name : "none");
+	return vbus;
+}
+
+static void gpio_vbus_work(struct work_struct *work)
+{
+	struct gpio_vbus_data *gpio_vbus =
+		container_of(work, struct gpio_vbus_data, work);
+	struct gpio_vbus_mach_info *pdata = gpio_vbus->dev->platform_data;
+	int gpio;
 
 	if (!gpio_vbus->otg.gadget)
-		return IRQ_HANDLED;
+		return;
 
 	/* Peripheral controllers which manage the pullup themselves won't have
 	 * gpio_pullup configured here.  If it's configured here, we'll do what
@@ -101,7 +105,7 @@ static irqreturn_t gpio_vbus_irq(int irq, void *data)
 	 * that may complicate usb_gadget_{,dis}connect() support.
 	 */
 	gpio = pdata->gpio_pullup;
-	if (vbus) {
+	if (is_vbus_powered(pdata)) {
 		gpio_vbus->otg.state = OTG_STATE_B_PERIPHERAL;
 		usb_gadget_vbus_connect(gpio_vbus->otg.gadget);
 
@@ -121,6 +125,21 @@ static irqreturn_t gpio_vbus_irq(int irq, void *data)
 		usb_gadget_vbus_disconnect(gpio_vbus->otg.gadget);
 		gpio_vbus->otg.state = OTG_STATE_B_IDLE;
 	}
+}
+
+/* VBUS change IRQ handler */
+static irqreturn_t gpio_vbus_irq(int irq, void *data)
+{
+	struct platform_device *pdev = data;
+	struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data;
+	struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev);
+
+	dev_dbg(&pdev->dev, "VBUS %s (gadget: %s)\n",
+		is_vbus_powered(pdata) ? "supplied" : "inactive",
+		gpio_vbus->otg.gadget ? gpio_vbus->otg.gadget->name : "none");
+
+	if (gpio_vbus->otg.gadget)
+		schedule_work(&gpio_vbus->work);
 
 	return IRQ_HANDLED;
 }
@@ -257,6 +276,7 @@ static int __init gpio_vbus_probe(struct platform_device *pdev)
 			irq, err);
 		goto err_irq;
 	}
+	INIT_WORK(&gpio_vbus->work, gpio_vbus_work);
 
 	/* only active when a gadget is registered */
 	err = otg_set_transceiver(&gpio_vbus->otg);
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 0460a746480c..bbf45d500b6d 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -598,6 +598,7 @@ static inline int usb_gadget_clear_selfpowered(struct usb_gadget *gadget)
 /**
  * usb_gadget_vbus_connect - Notify controller that VBUS is powered
  * @gadget:The device which now has VBUS power.
+ * Context: can sleep
  *
  * This call is used by a driver for an external transceiver (or GPIO)
  * that detects a VBUS power session starting.  Common responses include
@@ -636,6 +637,7 @@ static inline int usb_gadget_vbus_draw(struct usb_gadget *gadget, unsigned mA)
 /**
  * usb_gadget_vbus_disconnect - notify controller about VBUS session end
  * @gadget:the device whose VBUS supply is being described
+ * Context: can sleep
  *
  * This call is used by a driver for an external transceiver (or GPIO)
  * that detects a VBUS power session ending.  Common responses include
@@ -792,19 +794,20 @@ struct usb_gadget_driver {
 /**
  * usb_gadget_register_driver - register a gadget driver
  * @driver:the driver being registered
+ * Context: can sleep
  *
  * Call this in your gadget driver's module initialization function,
  * to tell the underlying usb controller driver about your driver.
  * The driver's bind() function will be called to bind it to a
  * gadget before this registration call returns.  It's expected that
  * the bind() functions will be in init sections.
- * This function must be called in a context that can sleep.
  */
 int usb_gadget_register_driver(struct usb_gadget_driver *driver);
 
 /**
  * usb_gadget_unregister_driver - unregister a gadget driver
  * @driver:the driver being unregistered
+ * Context: can sleep
  *
  * Call this in your gadget driver's module cleanup function,
  * to tell the underlying usb controller that your driver is
@@ -813,7 +816,6 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver);
  * to unbind() and clean up any device state, before this procedure
  * finally returns.  It's expected that the unbind() functions
  * will in in exit sections, so may not be linked in some kernels.
- * This function must be called in a context that can sleep.
  */
 int usb_gadget_unregister_driver(struct usb_gadget_driver *driver);
 
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 94df4fe6c6c0..60a52576fd5c 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -86,6 +86,7 @@ extern int otg_set_transceiver(struct otg_transceiver *);
 extern struct otg_transceiver *otg_get_transceiver(void);
 extern void otg_put_transceiver(struct otg_transceiver *);
 
+/* Context: can sleep */
 static inline int
 otg_start_hnp(struct otg_transceiver *otg)
 {
@@ -102,6 +103,8 @@ otg_set_host(struct otg_transceiver *otg, struct usb_bus *host)
 
 
 /* for usb peripheral controller drivers */
+
+/* Context: can sleep */
 static inline int
 otg_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *periph)
 {
@@ -114,6 +117,7 @@ otg_set_power(struct otg_transceiver *otg, unsigned mA)
 	return otg->set_power(otg, mA);
 }
 
+/* Context: can sleep */
 static inline int
 otg_set_suspend(struct otg_transceiver *otg, int suspend)
 {
-- 
cgit v1.2.3


From 4d6914b72966862f37de634299a80ca2a4b1829f Mon Sep 17 00:00:00 2001
From: Julia Lawall <julia@diku.dk>
Date: Mon, 29 Dec 2008 22:48:19 +0100
Subject: USB: Move definitions from usb.h to usb/ch9.h

The functions:

usb_endpoint_dir_in(epd)
usb_endpoint_dir_out(epd)
usb_endpoint_is_bulk_in(epd)
usb_endpoint_is_bulk_out(epd)
usb_endpoint_is_int_in(epd)
usb_endpoint_is_int_out(epd)
usb_endpoint_is_isoc_in(epd)
usb_endpoint_is_isoc_out(epd)
usb_endpoint_num(epd)
usb_endpoint_type(epd)
usb_endpoint_xfer_bulk(epd)
usb_endpoint_xfer_control(epd)
usb_endpoint_xfer_int(epd)
usb_endpoint_xfer_isoc(epd)

are moved from include/linux/usb.h to include/linux/usb/ch9.h.
include/linux/usb/ch9.h makes more sense for these functions because they
only depend on constants that are defined in this file.

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 include/linux/usb.h     | 180 ------------------------------------------------
 include/linux/usb/ch9.h | 179 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 179 insertions(+), 180 deletions(-)

(limited to 'include')

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 88079fd60235..0c05ff621192 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -643,186 +643,6 @@ static inline int usb_make_path(struct usb_device *dev, char *buf, size_t size)
 
 /*-------------------------------------------------------------------------*/
 
-/**
- * usb_endpoint_num - get the endpoint's number
- * @epd: endpoint to be checked
- *
- * Returns @epd's number: 0 to 15.
- */
-static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
-{
-	return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-}
-
-/**
- * usb_endpoint_type - get the endpoint's transfer type
- * @epd: endpoint to be checked
- *
- * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
- * to @epd's transfer type.
- */
-static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
-{
-	return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
-}
-
-/**
- * usb_endpoint_dir_in - check if the endpoint has IN direction
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type IN, otherwise it returns false.
- */
-static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
-}
-
-/**
- * usb_endpoint_dir_out - check if the endpoint has OUT direction
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type OUT, otherwise it returns false.
- */
-static inline int usb_endpoint_dir_out(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
-}
-
-/**
- * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type bulk, otherwise it returns false.
- */
-static inline int usb_endpoint_xfer_bulk(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-		USB_ENDPOINT_XFER_BULK);
-}
-
-/**
- * usb_endpoint_xfer_control - check if the endpoint has control transfer type
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type control, otherwise it returns false.
- */
-static inline int usb_endpoint_xfer_control(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-		USB_ENDPOINT_XFER_CONTROL);
-}
-
-/**
- * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type interrupt, otherwise it returns
- * false.
- */
-static inline int usb_endpoint_xfer_int(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-		USB_ENDPOINT_XFER_INT);
-}
-
-/**
- * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type isochronous, otherwise it returns
- * false.
- */
-static inline int usb_endpoint_xfer_isoc(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-		USB_ENDPOINT_XFER_ISOC);
-}
-
-/**
- * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has bulk transfer type and IN direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_bulk_in(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd));
-}
-
-/**
- * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has bulk transfer type and OUT direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_bulk_out(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd));
-}
-
-/**
- * usb_endpoint_is_int_in - check if the endpoint is interrupt IN
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has interrupt transfer type and IN direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_int_in(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd));
-}
-
-/**
- * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has interrupt transfer type and OUT direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_int_out(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd));
-}
-
-/**
- * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has isochronous transfer type and IN direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_isoc_in(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd));
-}
-
-/**
- * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has isochronous transfer type and OUT direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_isoc_out(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd));
-}
-
-/*-------------------------------------------------------------------------*/
-
 #define USB_DEVICE_ID_MATCH_DEVICE \
 		(USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT)
 #define USB_DEVICE_ID_MATCH_DEV_RANGE \
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 9b42baed3900..fa777db7f7eb 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -353,6 +353,185 @@ struct usb_endpoint_descriptor {
 #define USB_ENDPOINT_XFER_INT		3
 #define USB_ENDPOINT_MAX_ADJUSTABLE	0x80
 
+/*-------------------------------------------------------------------------*/
+
+/**
+ * usb_endpoint_num - get the endpoint's number
+ * @epd: endpoint to be checked
+ *
+ * Returns @epd's number: 0 to 15.
+ */
+static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
+{
+	return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+}
+
+/**
+ * usb_endpoint_type - get the endpoint's transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
+ * to @epd's transfer type.
+ */
+static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
+{
+	return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+}
+
+/**
+ * usb_endpoint_dir_in - check if the endpoint has IN direction
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type IN, otherwise it returns false.
+ */
+static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
+}
+
+/**
+ * usb_endpoint_dir_out - check if the endpoint has OUT direction
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type OUT, otherwise it returns false.
+ */
+static inline int usb_endpoint_dir_out(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
+}
+
+/**
+ * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type bulk, otherwise it returns false.
+ */
+static inline int usb_endpoint_xfer_bulk(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		USB_ENDPOINT_XFER_BULK);
+}
+
+/**
+ * usb_endpoint_xfer_control - check if the endpoint has control transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type control, otherwise it returns false.
+ */
+static inline int usb_endpoint_xfer_control(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		USB_ENDPOINT_XFER_CONTROL);
+}
+
+/**
+ * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type interrupt, otherwise it returns
+ * false.
+ */
+static inline int usb_endpoint_xfer_int(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		USB_ENDPOINT_XFER_INT);
+}
+
+/**
+ * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type isochronous, otherwise it returns
+ * false.
+ */
+static inline int usb_endpoint_xfer_isoc(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		USB_ENDPOINT_XFER_ISOC);
+}
+
+/**
+ * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has bulk transfer type and IN direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_bulk_in(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd));
+}
+
+/**
+ * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has bulk transfer type and OUT direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_bulk_out(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd));
+}
+
+/**
+ * usb_endpoint_is_int_in - check if the endpoint is interrupt IN
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has interrupt transfer type and IN direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_int_in(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd));
+}
+
+/**
+ * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has interrupt transfer type and OUT direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_int_out(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd));
+}
+
+/**
+ * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has isochronous transfer type and IN direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_isoc_in(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd));
+}
+
+/**
+ * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has isochronous transfer type and OUT direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_isoc_out(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd));
+}
 
 /*-------------------------------------------------------------------------*/
 
-- 
cgit v1.2.3


From f8bece8d91f9ed9cff3c98920802f1b3046b7560 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oliver@neukum.org>
Date: Thu, 5 Feb 2009 16:54:25 +0100
Subject: USB: serial: introduce a flag into the usb serial layer to tell
 drivers that their URBs are killed due to suspension

This patch introduces a flag into the usb serial layer to tell drivers
that their URBs are killed due to suspension. That is necessary to let
drivers know whether they should report an error back.

Signed-off-by: Oliver Neukum <oneukum@suse.de>

Hi Greg,

this is for 2.6.30. Patches to use this in drivers are under development.

	Regards
		Oliver
---
 drivers/usb/serial/usb-serial.c | 4 ++++
 include/linux/usb/serial.h      | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index cfcfd5ab06ce..c6aaa6dc7564 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1067,6 +1067,8 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
 	struct usb_serial_port *port;
 	int i, r = 0;
 
+	serial->suspending = 1;
+
 	for (i = 0; i < serial->num_ports; ++i) {
 		port = serial->port[i];
 		if (port)
@@ -1084,8 +1086,10 @@ int usb_serial_resume(struct usb_interface *intf)
 {
 	struct usb_serial *serial = usb_get_intfdata(intf);
 
+	serial->suspending = 0;
 	if (serial->type->resume)
 		return serial->type->resume(serial);
+
 	return 0;
 }
 EXPORT_SYMBOL(usb_serial_resume);
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 0b8617a9176d..b95842542590 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -130,7 +130,8 @@ struct usb_serial {
 	struct usb_device		*dev;
 	struct usb_serial_driver	*type;
 	struct usb_interface		*interface;
-	unsigned char			disconnected;
+	unsigned char			disconnected:1;
+	unsigned char			suspending:1;
 	unsigned char			minor;
 	unsigned char			num_ports;
 	unsigned char			num_port_pointers;
-- 
cgit v1.2.3


From f6d92a05c86754d62eabc84856d2035d0de3ddc3 Mon Sep 17 00:00:00 2001
From: Ajay Kumar Gupta <ajay.gupta@ti.com>
Date: Fri, 6 Feb 2009 17:32:35 +0530
Subject: USB: otg: adding nop usb transceiver

NOP transceiver is used by all the usb transceiver which are mostly
autonomous and doesn't require any programming or which are built
into the usb ip itself.NOP transceiver only allocates the memory
for struct xceiv and calls otg_set_transceiver() so function call
to otg_get_transceiver() will return a valid transceiver.

NOP transceiver device should be registered by calling
usb_nop_xceiv_register() from platform files.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/otg/Kconfig         |   8 ++
 drivers/usb/otg/Makefile        |   1 +
 drivers/usb/otg/nop-usb-xceiv.c | 180 ++++++++++++++++++++++++++++++++++++++++
 include/linux/usb/otg.h         |   4 +
 4 files changed, 193 insertions(+)
 create mode 100644 drivers/usb/otg/nop-usb-xceiv.c

(limited to 'include')

diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index ee55b449ffde..fc1ca03ce4da 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -51,4 +51,12 @@ config TWL4030_USB
 	  This transceiver supports high and full speed devices plus,
 	  in host mode, low speed.
 
+config NOP_USB_XCEIV
+	tristate "NOP USB Transceiver Driver"
+	select USB_OTG_UTILS
+	help
+	 this driver is to be used by all the usb transceiver which are either
+	 built-in with usb ip or which are autonomous and doesn't require any
+	 phy programming such as ISP1x04 etc.
+
 endif # USB || OTG
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index d73c7cf5e2f7..208167856529 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_USB_OTG_UTILS)	+= otg.o
 obj-$(CONFIG_USB_GPIO_VBUS)	+= gpio_vbus.o
 obj-$(CONFIG_ISP1301_OMAP)	+= isp1301_omap.o
 obj-$(CONFIG_TWL4030_USB)	+= twl4030-usb.o
+obj-$(CONFIG_NOP_USB_XCEIV)	+= nop-usb-xceiv.o
 
 ccflags-$(CONFIG_USB_DEBUG)	+= -DDEBUG
 ccflags-$(CONFIG_USB_GADGET_DEBUG) += -DDEBUG
diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c
new file mode 100644
index 000000000000..4b933f646f2e
--- /dev/null
+++ b/drivers/usb/otg/nop-usb-xceiv.c
@@ -0,0 +1,180 @@
+/*
+ * drivers/usb/otg/nop-usb-xceiv.c
+ *
+ * NOP USB transceiver for all USB transceiver which are either built-in
+ * into USB IP or which are mostly autonomous.
+ *
+ * Copyright (C) 2009 Texas Instruments Inc
+ * Author: Ajay Kumar Gupta <ajay.gupta@ti.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Current status:
+ * 	this is to add "nop" transceiver for all those phy which is
+ * 	autonomous such as isp1504 etc.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/usb/otg.h>
+
+struct nop_usb_xceiv {
+	struct otg_transceiver	otg;
+	struct device		*dev;
+};
+
+static u64 nop_xceiv_dmamask = DMA_32BIT_MASK;
+
+static struct platform_device nop_xceiv_device = {
+	.name           = "nop_usb_xceiv",
+	.id             = -1,
+	.dev = {
+		.dma_mask               = &nop_xceiv_dmamask,
+		.coherent_dma_mask      = DMA_32BIT_MASK,
+		.platform_data          = NULL,
+	},
+};
+
+void usb_nop_xceiv_register(void)
+{
+	if (platform_device_register(&nop_xceiv_device) < 0) {
+		printk(KERN_ERR "Unable to register usb nop transceiver\n");
+		return;
+	}
+}
+
+void usb_nop_xceiv_unregister(void)
+{
+	platform_device_unregister(&nop_xceiv_device);
+}
+
+static inline struct nop_usb_xceiv *xceiv_to_nop(struct otg_transceiver *x)
+{
+	return container_of(x, struct nop_usb_xceiv, otg);
+}
+
+static int nop_set_suspend(struct otg_transceiver *x, int suspend)
+{
+	return 0;
+}
+
+static int nop_set_peripheral(struct otg_transceiver *x,
+		struct usb_gadget *gadget)
+{
+	struct nop_usb_xceiv *nop;
+
+	if (!x)
+		return -ENODEV;
+
+	nop = xceiv_to_nop(x);
+
+	if (!gadget) {
+		nop->otg.gadget = NULL;
+		return -ENODEV;
+	}
+
+	nop->otg.gadget = gadget;
+	nop->otg.state = OTG_STATE_B_IDLE;
+	return 0;
+}
+
+static int nop_set_host(struct otg_transceiver *x, struct usb_bus *host)
+{
+	struct nop_usb_xceiv *nop;
+
+	if (!x)
+		return -ENODEV;
+
+	nop = xceiv_to_nop(x);
+
+	if (!host) {
+		nop->otg.host = NULL;
+		return -ENODEV;
+	}
+
+	nop->otg.host = host;
+	return 0;
+}
+
+static int __devinit nop_usb_xceiv_probe(struct platform_device *pdev)
+{
+	struct nop_usb_xceiv	*nop;
+	int err;
+
+	nop = kzalloc(sizeof *nop, GFP_KERNEL);
+	if (!nop)
+		return -ENOMEM;
+
+	nop->dev		= &pdev->dev;
+	nop->otg.dev		= nop->dev;
+	nop->otg.label		= "nop-xceiv";
+	nop->otg.state		= OTG_STATE_UNDEFINED;
+	nop->otg.set_host	= nop_set_host;
+	nop->otg.set_peripheral	= nop_set_peripheral;
+	nop->otg.set_suspend	= nop_set_suspend;
+
+	err = otg_set_transceiver(&nop->otg);
+	if (err) {
+		dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
+			err);
+		goto exit;
+	}
+
+	platform_set_drvdata(pdev, nop);
+
+	return 0;
+exit:
+	kfree(nop);
+	return err;
+}
+
+static int __devexit nop_usb_xceiv_remove(struct platform_device *pdev)
+{
+	struct nop_usb_xceiv *nop = platform_get_drvdata(pdev);
+
+	otg_set_transceiver(NULL);
+
+	platform_set_drvdata(pdev, NULL);
+	kfree(nop);
+
+	return 0;
+}
+
+static struct platform_driver nop_usb_xceiv_driver = {
+	.probe		= nop_usb_xceiv_probe,
+	.remove		= __devexit_p(nop_usb_xceiv_remove),
+	.driver		= {
+		.name	= "nop_usb_xceiv",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init nop_usb_xceiv_init(void)
+{
+	return platform_driver_register(&nop_usb_xceiv_driver);
+}
+subsys_initcall(nop_usb_xceiv_init);
+
+static void __exit nop_usb_xceiv_exit(void)
+{
+	platform_driver_unregister(&nop_usb_xceiv_driver);
+}
+module_exit(nop_usb_xceiv_exit);
+
+MODULE_ALIAS("platform:nop_usb_xceiv");
+MODULE_AUTHOR("Texas Instruments Inc");
+MODULE_DESCRIPTION("NOP USB Transceiver driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 60a52576fd5c..1aaa826396a1 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -80,6 +80,10 @@ struct otg_transceiver {
 
 /* for board-specific init logic */
 extern int otg_set_transceiver(struct otg_transceiver *);
+#ifdef CONFIG_NOP_USB_XCEIV
+extern void usb_nop_xceiv_register(void);
+extern void usb_nop_xceiv_unregister(void);
+#endif
 
 
 /* for usb host and peripheral controller drivers */
-- 
cgit v1.2.3


From e6e244b6cb1f70e7109381626293cd40a8334ed3 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Thu, 12 Feb 2009 14:47:44 -0500
Subject: usb-storage: prepare for subdriver separation

This patch (as1206) is the first step in converting usb-storage's
subdrivers into separate modules.  It makes the following large-scale
changes:

	Remove a bunch of unnecessary #ifdef's from usb_usual.h.
	Not truly necessary, but it does clean things up.

	Move the USB device-ID table (which is duplicated between
	libusual and usb-storage) into its own source file,
	usual-tables.c, and arrange for this to be linked with
	either libusual or usb-storage according to whether
	USB_LIBUSUAL is configured.

	Add to usual-tables.c a new usb_usual_ignore_device()
	function to detect whether a particular device needs to be
	managed by a subdriver and not by the standard handlers
	in usb-storage.

	Export a whole bunch of functions in usb-storage, renaming
	some of them because their names don't already begin with
	"usb_stor_".  These functions will be needed by the new
	subdriver modules.

	Split usb-storage's probe routine into two functions.
	The subdrivers will call the probe1 routine, then fill in
	their transport and protocol settings, and then call the
	probe2 routine.

	Take the default cases and error checking out of
	get_transport() and get_protocol(), which run during
	probe1, and instead put a check for invalid transport
	or protocol values into the probe2 function.

	Add a new probe routine to be used for standard devices,
	i.e., those that don't need a subdriver.  This new routine
	checks whether the device should be ignored (because it
	should be handled by ub or by a subdriver), and if not,
	calls the probe1 and probe2 functions.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/block/ub.c                 |   2 +-
 drivers/usb/storage/Makefile       |   6 +-
 drivers/usb/storage/libusual.c     |  33 +-----
 drivers/usb/storage/protocol.c     |   3 +
 drivers/usb/storage/scsiglue.c     |   2 +-
 drivers/usb/storage/transport.c    |  10 ++
 drivers/usb/storage/usb.c          | 209 ++++++++++++++++++++-----------------
 drivers/usb/storage/usb.h          |  21 ++++
 drivers/usb/storage/usual-tables.c | 105 +++++++++++++++++++
 include/linux/usb_usual.h          |  21 +---
 10 files changed, 261 insertions(+), 151 deletions(-)
 create mode 100644 drivers/usb/storage/usual-tables.c

(limited to 'include')

diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index b36b84fbe390..69b7f8e77596 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -391,7 +391,7 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum);
  */
 #ifdef CONFIG_USB_LIBUSUAL
 
-#define ub_usb_ids  storage_usb_ids
+#define ub_usb_ids  usb_storage_usb_ids
 #else
 
 static struct usb_device_id ub_usb_ids[] = {
diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile
index b32069313390..a9e475e127a5 100644
--- a/drivers/usb/storage/Makefile
+++ b/drivers/usb/storage/Makefile
@@ -25,6 +25,8 @@ usb-storage-obj-$(CONFIG_USB_STORAGE_CYPRESS_ATACB) += cypress_atacb.o
 usb-storage-objs :=	scsiglue.o protocol.o transport.o usb.o \
 			initializers.o sierra_ms.o option_ms.o $(usb-storage-obj-y)
 
-ifneq ($(CONFIG_USB_LIBUSUAL),)
-	obj-$(CONFIG_USB)	+= libusual.o
+ifeq ($(CONFIG_USB_LIBUSUAL),)
+	usb-storage-objs	+= usual-tables.o
+else
+	obj-$(CONFIG_USB)	+= libusual.o usual-tables.o
 endif
diff --git a/drivers/usb/storage/libusual.c b/drivers/usb/storage/libusual.c
index f970b27ba308..fe3ffe1459b2 100644
--- a/drivers/usb/storage/libusual.c
+++ b/drivers/usb/storage/libusual.c
@@ -37,37 +37,6 @@ static atomic_t total_threads = ATOMIC_INIT(0);
 
 static int usu_probe_thread(void *arg);
 
-/*
- * The table.
- */
-#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
-		    vendorName, productName,useProtocol, useTransport, \
-		    initFunction, flags) \
-{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin,bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
-
-#define COMPLIANT_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
-		    vendorName, productName, useProtocol, useTransport, \
-		    initFunction, flags) \
-{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags) }
-
-#define USUAL_DEV(useProto, useTrans, useType) \
-{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, useProto, useTrans), \
-  .driver_info = ((useType)<<24) }
-
-struct usb_device_id storage_usb_ids [] = {
-#	include "unusual_devs.h"
-	{ } /* Terminating entry */
-};
-
-#undef USUAL_DEV
-#undef UNUSUAL_DEV
-#undef COMPLIANT_DEV
-
-MODULE_DEVICE_TABLE(usb, storage_usb_ids);
-EXPORT_SYMBOL_GPL(storage_usb_ids);
-
 /*
  * @type: the module type as an integer
  */
@@ -167,7 +136,7 @@ static struct usb_driver usu_driver = {
 	.name =		"libusual",
 	.probe =	usu_probe,
 	.disconnect =	usu_disconnect,
-	.id_table =	storage_usb_ids,
+	.id_table =	usb_storage_usb_ids,
 };
 
 /*
diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c
index be441d84bc64..fc310f75eada 100644
--- a/drivers/usb/storage/protocol.c
+++ b/drivers/usb/storage/protocol.c
@@ -121,6 +121,7 @@ void usb_stor_transparent_scsi_command(struct scsi_cmnd *srb,
 	/* send the command to the transport layer */
 	usb_stor_invoke_transport(srb, us);
 }
+EXPORT_SYMBOL_GPL(usb_stor_transparent_scsi_command);
 
 /***********************************************************************
  * Scatter-gather transfer buffer access routines
@@ -199,6 +200,7 @@ unsigned int usb_stor_access_xfer_buf(unsigned char *buffer,
 	/* Return the amount actually transferred */
 	return cnt;
 }
+EXPORT_SYMBOL_GPL(usb_stor_access_xfer_buf);
 
 /* Store the contents of buffer into srb's transfer buffer and set the
  * SCSI residue.
@@ -215,3 +217,4 @@ void usb_stor_set_xfer_buf(unsigned char *buffer,
 	if (buflen < scsi_bufflen(srb))
 		scsi_set_resid(srb, scsi_bufflen(srb) - buflen);
 }
+EXPORT_SYMBOL_GPL(usb_stor_set_xfer_buf);
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index ed710bcdaab2..4ca3b5860643 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -569,4 +569,4 @@ unsigned char usb_stor_sense_invalidCDB[18] = {
 	[7]	= 0x0a,			    /* additional length */
 	[12]	= 0x24			    /* Invalid Field in CDB */
 };
-
+EXPORT_SYMBOL_GPL(usb_stor_sense_invalidCDB);
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index fb65d221cedf..d48c8553539d 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -220,6 +220,7 @@ int usb_stor_control_msg(struct us_data *us, unsigned int pipe,
 		status = us->current_urb->actual_length;
 	return status;
 }
+EXPORT_SYMBOL_GPL(usb_stor_control_msg);
 
 /* This is a version of usb_clear_halt() that allows early termination and
  * doesn't read the status from the device -- this is because some devices
@@ -254,6 +255,7 @@ int usb_stor_clear_halt(struct us_data *us, unsigned int pipe)
 	US_DEBUGP("%s: result = %d\n", __func__, result);
 	return result;
 }
+EXPORT_SYMBOL_GPL(usb_stor_clear_halt);
 
 
 /*
@@ -352,6 +354,7 @@ int usb_stor_ctrl_transfer(struct us_data *us, unsigned int pipe,
 	return interpret_urb_result(us, pipe, size, result,
 			us->current_urb->actual_length);
 }
+EXPORT_SYMBOL_GPL(usb_stor_ctrl_transfer);
 
 /*
  * Receive one interrupt buffer, without timeouts, but allowing early
@@ -407,6 +410,7 @@ int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
 	return interpret_urb_result(us, pipe, length, result, 
 			us->current_urb->actual_length);
 }
+EXPORT_SYMBOL_GPL(usb_stor_bulk_transfer_buf);
 
 /*
  * Transfer a scatter-gather list via bulk transfer
@@ -474,6 +478,7 @@ int usb_stor_bulk_srb(struct us_data* us, unsigned int pipe,
 	scsi_set_resid(srb, scsi_bufflen(srb) - partial);
 	return result;
 }
+EXPORT_SYMBOL_GPL(usb_stor_bulk_srb);
 
 /*
  * Transfer an entire SCSI command's worth of data payload over the bulk
@@ -509,6 +514,7 @@ int usb_stor_bulk_transfer_sg(struct us_data* us, unsigned int pipe,
 		*residual = length_left;
 	return result;
 }
+EXPORT_SYMBOL_GPL(usb_stor_bulk_transfer_sg);
 
 /***********************************************************************
  * Transport routines
@@ -940,6 +946,7 @@ int usb_stor_CB_transport(struct scsi_cmnd *srb, struct us_data *us)
 		usb_stor_clear_halt(us, pipe);
 	return USB_STOR_TRANSPORT_FAILED;
 }
+EXPORT_SYMBOL_GPL(usb_stor_CB_transport);
 
 /*
  * Bulk only transport
@@ -1156,6 +1163,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us)
 	/* we should never get here, but if we do, we're in trouble */
 	return USB_STOR_TRANSPORT_ERROR;
 }
+EXPORT_SYMBOL_GPL(usb_stor_Bulk_transport);
 
 /***********************************************************************
  * Reset routines
@@ -1230,6 +1238,7 @@ int usb_stor_CB_reset(struct us_data *us)
 				 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 				 0, us->ifnum, us->iobuf, CB_RESET_CMD_SIZE);
 }
+EXPORT_SYMBOL_GPL(usb_stor_CB_reset);
 
 /* This issues a Bulk-only Reset to the device in question, including
  * clearing the subsequent endpoint halts that may occur.
@@ -1242,6 +1251,7 @@ int usb_stor_Bulk_reset(struct us_data *us)
 				 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 				 0, us->ifnum, NULL, 0);
 }
+EXPORT_SYMBOL_GPL(usb_stor_Bulk_reset);
 
 /* Issue a USB port reset to the device.  The caller must not hold
  * us->dev_mutex.
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index b01dade63cb3..490ea761398c 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -5,7 +5,7 @@
  *
  * Developed with the assistance of:
  *   (c) 2000 David L. Brown, Jr. (usb-storage@davidb.org)
- *   (c) 2003 Alan Stern (stern@rowland.harvard.edu)
+ *   (c) 2003-2009 Alan Stern (stern@rowland.harvard.edu)
  *
  * Initial work by:
  *   (c) 1999 Michael Gee (michael@linuxspecific.com)
@@ -118,36 +118,8 @@ MODULE_PARM_DESC(quirks, "supplemental list of device IDs and their quirks");
 
 /*
  * The entries in this table correspond, line for line,
- * with the entries of us_unusual_dev_list[].
+ * with the entries in usb_storage_usb_ids[], defined in usual-tables.c.
  */
-#ifndef CONFIG_USB_LIBUSUAL
-
-#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
-		    vendorName, productName,useProtocol, useTransport, \
-		    initFunction, flags) \
-{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin,bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
-
-#define COMPLIANT_DEV	UNUSUAL_DEV
-
-#define USUAL_DEV(useProto, useTrans, useType) \
-{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, useProto, useTrans), \
-  .driver_info = (USB_US_TYPE_STOR<<24) }
-
-static struct usb_device_id storage_usb_ids [] = {
-
-#	include "unusual_devs.h"
-#undef UNUSUAL_DEV
-#undef COMPLIANT_DEV
-#undef USUAL_DEV
-	/* Terminating entry */
-	{ }
-};
-
-MODULE_DEVICE_TABLE (usb, storage_usb_ids);
-#endif /* CONFIG_USB_LIBUSUAL */
-
-/* This is the list of devices we recognize, along with their flag data */
 
 /* The vendor name should be kept at eight characters or less, and
  * the product name should be kept at 16 characters or less. If a device
@@ -179,18 +151,17 @@ MODULE_DEVICE_TABLE (usb, storage_usb_ids);
 
 static struct us_unusual_dev us_unusual_dev_list[] = {
 #	include "unusual_devs.h" 
-#	undef UNUSUAL_DEV
-#	undef COMPLIANT_DEV
-#	undef USUAL_DEV
-
-	/* Terminating entry */
-	{ NULL }
+	{ }		/* Terminating entry */
 };
 
+#undef UNUSUAL_DEV
+#undef COMPLIANT_DEV
+#undef USUAL_DEV
+
 
 #ifdef CONFIG_PM	/* Minimal support for suspend and resume */
 
-static int storage_suspend(struct usb_interface *iface, pm_message_t message)
+int usb_stor_suspend(struct usb_interface *iface, pm_message_t message)
 {
 	struct us_data *us = usb_get_intfdata(iface);
 
@@ -207,8 +178,9 @@ static int storage_suspend(struct usb_interface *iface, pm_message_t message)
 	mutex_unlock(&us->dev_mutex);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_stor_suspend);
 
-static int storage_resume(struct usb_interface *iface)
+int usb_stor_resume(struct usb_interface *iface)
 {
 	struct us_data *us = usb_get_intfdata(iface);
 
@@ -221,8 +193,9 @@ static int storage_resume(struct usb_interface *iface)
 	mutex_unlock(&us->dev_mutex);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_stor_resume);
 
-static int storage_reset_resume(struct usb_interface *iface)
+int usb_stor_reset_resume(struct usb_interface *iface)
 {
 	struct us_data *us = usb_get_intfdata(iface);
 
@@ -235,6 +208,7 @@ static int storage_reset_resume(struct usb_interface *iface)
 	 * the device */
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_stor_reset_resume);
 
 #endif /* CONFIG_PM */
 
@@ -243,7 +217,7 @@ static int storage_reset_resume(struct usb_interface *iface)
  * a USB port reset, whether from this driver or a different one.
  */
 
-static int storage_pre_reset(struct usb_interface *iface)
+int usb_stor_pre_reset(struct usb_interface *iface)
 {
 	struct us_data *us = usb_get_intfdata(iface);
 
@@ -253,8 +227,9 @@ static int storage_pre_reset(struct usb_interface *iface)
 	mutex_lock(&us->dev_mutex);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_stor_pre_reset);
 
-static int storage_post_reset(struct usb_interface *iface)
+int usb_stor_post_reset(struct usb_interface *iface)
 {
 	struct us_data *us = usb_get_intfdata(iface);
 
@@ -269,6 +244,7 @@ static int storage_post_reset(struct usb_interface *iface)
 	mutex_unlock(&us->dev_mutex);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_stor_post_reset);
 
 /*
  * fill_inquiry_response takes an unsigned char array (which must
@@ -311,6 +287,7 @@ void fill_inquiry_response(struct us_data *us, unsigned char *data,
 
 	usb_stor_set_xfer_buf(data, data_len, us->srb);
 }
+EXPORT_SYMBOL_GPL(fill_inquiry_response);
 
 static int usb_stor_control_thread(void * __us)
 {
@@ -551,20 +528,13 @@ static void adjust_quirks(struct us_data *us)
 			vid, pid, f);
 }
 
-/* Find an unusual_dev descriptor (always succeeds in the current code) */
-static struct us_unusual_dev *find_unusual(const struct usb_device_id *id)
-{
-	const int id_index = id - storage_usb_ids;
-	return &us_unusual_dev_list[id_index];
-}
-
 /* Get the unusual_devs entries and the string descriptors */
-static int get_device_info(struct us_data *us, const struct usb_device_id *id)
+static int get_device_info(struct us_data *us, const struct usb_device_id *id,
+		struct us_unusual_dev *unusual_dev)
 {
 	struct usb_device *dev = us->pusb_dev;
 	struct usb_interface_descriptor *idesc =
 		&us->pusb_intf->cur_altsetting->desc;
-	struct us_unusual_dev *unusual_dev = find_unusual(id);
 
 	/* Store the entries */
 	us->unusual_dev = unusual_dev;
@@ -629,7 +599,7 @@ static int get_device_info(struct us_data *us, const struct usb_device_id *id)
 }
 
 /* Get the transport settings */
-static int get_transport(struct us_data *us)
+static void get_transport(struct us_data *us)
 {
 	switch (us->protocol) {
 	case US_PR_CB:
@@ -732,19 +702,11 @@ static int get_transport(struct us_data *us)
 		break;
 #endif
 
-	default:
-		return -EIO;
 	}
-	US_DEBUGP("Transport: %s\n", us->transport_name);
-
-	/* fix for single-lun devices */
-	if (us->fflags & US_FL_SINGLE_LUN)
-		us->max_lun = 0;
-	return 0;
 }
 
 /* Get the protocol settings */
-static int get_protocol(struct us_data *us)
+static void get_protocol(struct us_data *us)
 {
 	switch (us->subclass) {
 	case US_SC_RBC:
@@ -794,11 +756,7 @@ static int get_protocol(struct us_data *us)
 		break;
 #endif
 
-	default:
-		return -EIO;
 	}
-	US_DEBUGP("Protocol: %s\n", us->protocol_name);
-	return 0;
 }
 
 /* Get the pipe settings */
@@ -1012,17 +970,15 @@ static int usb_stor_scan_thread(void * __us)
 }
 
 
-/* Probe to see if we can drive a newly-connected USB device */
-static int storage_probe(struct usb_interface *intf,
-			 const struct usb_device_id *id)
+/* First part of general USB mass-storage probing */
+int usb_stor_probe1(struct us_data **pus,
+		struct usb_interface *intf,
+		const struct usb_device_id *id,
+		struct us_unusual_dev *unusual_dev)
 {
 	struct Scsi_Host *host;
 	struct us_data *us;
 	int result;
-	struct task_struct *th;
-
-	if (usb_usual_check_type(id, USB_US_TYPE_STOR))
-		return -ENXIO;
 
 	US_DEBUGP("USB Mass Storage device detected\n");
 
@@ -1041,7 +997,7 @@ static int storage_probe(struct usb_interface *intf,
 	 * Allow 16-byte CDBs and thus > 2TB
 	 */
 	host->max_cmd_len = 16;
-	us = host_to_us(host);
+	*pus = us = host_to_us(host);
 	memset(us, 0, sizeof(struct us_data));
 	mutex_init(&(us->dev_mutex));
 	init_completion(&us->cmnd_ready);
@@ -1054,24 +1010,46 @@ static int storage_probe(struct usb_interface *intf,
 	if (result)
 		goto BadDevice;
 
-	/*
-	 * Get the unusual_devs entries and the descriptors
-	 *
-	 * id_index is calculated in the declaration to be the index number
-	 * of the match from the usb_device_id table, so we can find the
-	 * corresponding entry in the private table.
-	 */
-	result = get_device_info(us, id);
+	/* Get the unusual_devs entries and the descriptors */
+	result = get_device_info(us, id, unusual_dev);
 	if (result)
 		goto BadDevice;
 
-	/* Get the transport, protocol, and pipe settings */
-	result = get_transport(us);
-	if (result)
-		goto BadDevice;
-	result = get_protocol(us);
-	if (result)
+	/* Get standard transport and protocol settings */
+	get_transport(us);
+	get_protocol(us);
+
+	/* Give the caller a chance to fill in specialized transport
+	 * or protocol settings.
+	 */
+	return 0;
+
+BadDevice:
+	US_DEBUGP("storage_probe() failed\n");
+	release_everything(us);
+	return result;
+}
+EXPORT_SYMBOL_GPL(usb_stor_probe1);
+
+/* Second part of general USB mass-storage probing */
+int usb_stor_probe2(struct us_data *us)
+{
+	struct task_struct *th;
+	int result;
+
+	/* Make sure the transport and protocol have both been set */
+	if (!us->transport || !us->proto_handler) {
+		result = -ENXIO;
 		goto BadDevice;
+	}
+	US_DEBUGP("Transport: %s\n", us->transport_name);
+	US_DEBUGP("Protocol: %s\n", us->protocol_name);
+
+	/* fix for single-lun devices */
+	if (us->fflags & US_FL_SINGLE_LUN)
+		us->max_lun = 0;
+
+	/* Find the endpoints and calculate pipe values */
 	result = get_pipes(us);
 	if (result)
 		goto BadDevice;
@@ -1080,7 +1058,7 @@ static int storage_probe(struct usb_interface *intf,
 	result = usb_stor_acquire_resources(us);
 	if (result)
 		goto BadDevice;
-	result = scsi_add_host(host, &intf->dev);
+	result = scsi_add_host(us_to_host(us), &us->pusb_intf->dev);
 	if (result) {
 		printk(KERN_WARNING USB_STORAGE
 			"Unable to add the scsi host\n");
@@ -1108,9 +1086,10 @@ BadDevice:
 	release_everything(us);
 	return result;
 }
+EXPORT_SYMBOL_GPL(usb_stor_probe2);
 
-/* Handle a disconnect event from the USB core */
-static void storage_disconnect(struct usb_interface *intf)
+/* Handle a USB mass-storage disconnect */
+void usb_stor_disconnect(struct usb_interface *intf)
 {
 	struct us_data *us = usb_get_intfdata(intf);
 
@@ -1118,6 +1097,42 @@ static void storage_disconnect(struct usb_interface *intf)
 	quiesce_and_remove_host(us);
 	release_everything(us);
 }
+EXPORT_SYMBOL_GPL(usb_stor_disconnect);
+
+/* The main probe routine for standard devices */
+static int storage_probe(struct usb_interface *intf,
+			 const struct usb_device_id *id)
+{
+	struct us_data *us;
+	int result;
+
+	/*
+	 * If libusual is configured, let it decide whether a standard
+	 * device should be handled by usb-storage or by ub.
+	 * If the device isn't standard (is handled by a subdriver
+	 * module) then don't accept it.
+	 */
+	if (usb_usual_check_type(id, USB_US_TYPE_STOR) ||
+			usb_usual_ignore_device(intf))
+		return -ENXIO;
+
+	/*
+	 * Call the general probe procedures.
+	 *
+	 * The unusual_dev_list array is parallel to the usb_storage_usb_ids
+	 * table, so we use the index of the id entry to find the
+	 * corresponding unusual_devs entry.
+	 */
+	result = usb_stor_probe1(&us, intf, id,
+			(id - usb_storage_usb_ids) + us_unusual_dev_list);
+	if (result)
+		return result;
+
+	/* No special transport or protocol settings in the main module */
+
+	result = usb_stor_probe2(us);
+	return result;
+}
 
 /***********************************************************************
  * Initialization and registration
@@ -1126,15 +1141,13 @@ static void storage_disconnect(struct usb_interface *intf)
 static struct usb_driver usb_storage_driver = {
 	.name =		"usb-storage",
 	.probe =	storage_probe,
-	.disconnect =	storage_disconnect,
-#ifdef CONFIG_PM
-	.suspend =	storage_suspend,
-	.resume =	storage_resume,
-	.reset_resume =	storage_reset_resume,
-#endif
-	.pre_reset =	storage_pre_reset,
-	.post_reset =	storage_post_reset,
-	.id_table =	storage_usb_ids,
+	.disconnect =	usb_stor_disconnect,
+	.suspend =	usb_stor_suspend,
+	.resume =	usb_stor_resume,
+	.reset_resume =	usb_stor_reset_resume,
+	.pre_reset =	usb_stor_pre_reset,
+	.post_reset =	usb_stor_post_reset,
+	.id_table =	usb_storage_usb_ids,
 	.soft_unbind =	1,
 };
 
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
index 65e674e4be99..2609efb2bd7e 100644
--- a/drivers/usb/storage/usb.h
+++ b/drivers/usb/storage/usb.h
@@ -177,4 +177,25 @@ extern void fill_inquiry_response(struct us_data *us,
 #define scsi_unlock(host)	spin_unlock_irq(host->host_lock)
 #define scsi_lock(host)		spin_lock_irq(host->host_lock)
 
+/* General routines provided by the usb-storage standard core */
+#ifdef CONFIG_PM
+extern int usb_stor_suspend(struct usb_interface *iface, pm_message_t message);
+extern int usb_stor_resume(struct usb_interface *iface);
+extern int usb_stor_reset_resume(struct usb_interface *iface);
+#else
+#define usb_stor_suspend	NULL
+#define usb_stor_resume		NULL
+#define usb_stor_reset_resume	NULL
+#endif
+
+extern int usb_stor_pre_reset(struct usb_interface *iface);
+extern int usb_stor_post_reset(struct usb_interface *iface);
+
+extern int usb_stor_probe1(struct us_data **pus,
+		struct usb_interface *intf,
+		const struct usb_device_id *id,
+		struct us_unusual_dev *unusual_dev);
+extern int usb_stor_probe2(struct us_data *us);
+extern void usb_stor_disconnect(struct usb_interface *intf);
+
 #endif
diff --git a/drivers/usb/storage/usual-tables.c b/drivers/usb/storage/usual-tables.c
new file mode 100644
index 000000000000..1924e3229409
--- /dev/null
+++ b/drivers/usb/storage/usual-tables.c
@@ -0,0 +1,105 @@
+/* Driver for USB Mass Storage devices
+ * Usual Tables File for usb-storage and libusual
+ *
+ * Copyright (C) 2009 Alan Stern (stern@rowland.harvard.edu)
+ *
+ * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
+ * information about this driver.
+ *
+ * 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, 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb_usual.h>
+
+
+/*
+ * The table of devices
+ */
+#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+		    vendorName, productName, useProtocol, useTransport, \
+		    initFunction, flags) \
+{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
+  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+
+#define COMPLIANT_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+		    vendorName, productName, useProtocol, useTransport, \
+		    initFunction, flags) \
+{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
+  .driver_info = (flags) }
+
+#define USUAL_DEV(useProto, useTrans, useType) \
+{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, useProto, useTrans), \
+  .driver_info = ((useType)<<24) }
+
+struct usb_device_id usb_storage_usb_ids[] = {
+#	include "unusual_devs.h"
+	{ }		/* Terminating entry */
+};
+EXPORT_SYMBOL_GPL(usb_storage_usb_ids);
+
+MODULE_DEVICE_TABLE(usb, usb_storage_usb_ids);
+
+#undef UNUSUAL_DEV
+#undef COMPLIANT_DEV
+#undef USUAL_DEV
+
+
+/*
+ * The table of devices to ignore
+ */
+struct ignore_entry {
+	u16	vid, pid, bcdmin, bcdmax;
+};
+
+#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+		    vendorName, productName, useProtocol, useTransport, \
+		    initFunction, flags) \
+{					\
+	.vid	= id_vendor,		\
+	.pid 	= id_product,		\
+	.bcdmin	= bcdDeviceMin,		\
+	.bcdmax = bcdDeviceMax,		\
+}
+
+static struct ignore_entry ignore_ids[] = {
+	{ }		/* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+
+
+/* Return an error if a device is in the ignore_ids list */
+int usb_usual_ignore_device(struct usb_interface *intf)
+{
+	struct usb_device *udev;
+	unsigned vid, pid, bcd;
+	struct ignore_entry *p;
+
+	udev = interface_to_usbdev(intf);
+	vid = le16_to_cpu(udev->descriptor.idVendor);
+	pid = le16_to_cpu(udev->descriptor.idProduct);
+	bcd = le16_to_cpu(udev->descriptor.bcdDevice);
+
+	for (p = ignore_ids; p->vid; ++p) {
+		if (p->vid == vid && p->pid == pid &&
+				p->bcdmin <= bcd && p->bcdmax >= bcd)
+			return -ENXIO;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usb_usual_ignore_device);
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 1eea1ab68dc4..3d15fb9bc116 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -96,39 +96,26 @@ enum { US_DO_ALL_FLAGS };
 #define US_PR_CBI	0x00		/* Control/Bulk/Interrupt */
 #define US_PR_CB	0x01		/* Control/Bulk w/o interrupt */
 #define US_PR_BULK	0x50		/* bulk only */
-#ifdef CONFIG_USB_STORAGE_USBAT
+
 #define US_PR_USBAT	0x80		/* SCM-ATAPI bridge */
-#endif
-#ifdef CONFIG_USB_STORAGE_SDDR09
 #define US_PR_EUSB_SDDR09	0x81	/* SCM-SCSI bridge for SDDR-09 */
-#endif
-#ifdef CONFIG_USB_STORAGE_SDDR55
 #define US_PR_SDDR55	0x82		/* SDDR-55 (made up) */
-#endif
 #define US_PR_DPCM_USB  0xf0		/* Combination CB/SDDR09 */
-#ifdef CONFIG_USB_STORAGE_FREECOM
 #define US_PR_FREECOM   0xf1		/* Freecom */
-#endif
-#ifdef CONFIG_USB_STORAGE_DATAFAB
 #define US_PR_DATAFAB   0xf2		/* Datafab chipsets */
-#endif
-#ifdef CONFIG_USB_STORAGE_JUMPSHOT
 #define US_PR_JUMPSHOT  0xf3		/* Lexar Jumpshot */
-#endif
-#ifdef CONFIG_USB_STORAGE_ALAUDA
 #define US_PR_ALAUDA    0xf4		/* Alauda chipsets */
-#endif
-#ifdef CONFIG_USB_STORAGE_KARMA
 #define US_PR_KARMA     0xf5		/* Rio Karma */
-#endif
 
 #define US_PR_DEVICE	0xff		/* Use device's value */
 
 /*
  */
+extern int usb_usual_ignore_device(struct usb_interface *intf);
+extern struct usb_device_id usb_storage_usb_ids[];
+
 #ifdef CONFIG_USB_LIBUSUAL
 
-extern struct usb_device_id storage_usb_ids[];
 extern void usb_usual_set_present(int type);
 extern void usb_usual_clear_present(int type);
 extern int usb_usual_check_type(const struct usb_device_id *, int type);
-- 
cgit v1.2.3


From 6da9c99059bf24fb1faae6b9613bae64ea50c05e Mon Sep 17 00:00:00 2001
From: David Vrabel <david.vrabel@csr.com>
Date: Wed, 18 Feb 2009 14:43:47 +0000
Subject: USB: allow libusb to talk to unauthenticated WUSB devices

To permit a userspace application to associate with WUSB devices
using numeric association, control transfers to unauthenticated WUSB
devices must be allowed.

This requires that wusbcore correctly sets the device state to
UNAUTHENTICATED, DEFAULT and ADDRESS and that control transfers can be
performed to UNAUTHENTICATED devices.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/core/devio.c          | 3 ++-
 drivers/usb/core/hub.c            | 1 +
 drivers/usb/core/urb.c            | 2 +-
 drivers/usb/wusbcore/devconnect.c | 2 ++
 drivers/usb/wusbcore/security.c   | 2 ++
 include/linux/usb/ch9.h           | 2 +-
 6 files changed, 9 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 6585f527e381..8f022af2fd7a 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -525,7 +525,8 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
 {
 	int ret = 0;
 
-	if (ps->dev->state != USB_STATE_ADDRESS
+	if (ps->dev->state != USB_STATE_UNAUTHENTICATED
+	 && ps->dev->state != USB_STATE_ADDRESS
 	 && ps->dev->state != USB_STATE_CONFIGURED)
 		return -EHOSTUNREACH;
 	if (USB_TYPE_VENDOR == (USB_TYPE_MASK & requesttype))
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 7e33d63ab92f..f17d9ebc44af 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1305,6 +1305,7 @@ void usb_set_device_state(struct usb_device *udev,
 		recursively_mark_NOTATTACHED(udev);
 	spin_unlock_irqrestore(&device_state_lock, flags);
 }
+EXPORT_SYMBOL_GPL(usb_set_device_state);
 
 /*
  * WUSB devices are simple: they have no hubs behind, so the mapping
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 58bc5e3c2560..7025d801f23a 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -295,7 +295,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 	if (!urb || urb->hcpriv || !urb->complete)
 		return -EINVAL;
 	dev = urb->dev;
-	if ((!dev) || (dev->state < USB_STATE_DEFAULT))
+	if ((!dev) || (dev->state < USB_STATE_UNAUTHENTICATED))
 		return -ENODEV;
 
 	/* For now, get the endpoint from the pipe.  Eventually drivers
diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c
index 8e18141bb2e0..f0aac0cf315a 100644
--- a/drivers/usb/wusbcore/devconnect.c
+++ b/drivers/usb/wusbcore/devconnect.c
@@ -889,6 +889,8 @@ static void wusb_dev_add_ncb(struct usb_device *usb_dev)
 	if (usb_dev->wusb == 0 || usb_dev->devnum == 1)
 		return;		/* skip non wusb and wusb RHs */
 
+	usb_set_device_state(usb_dev, USB_STATE_UNAUTHENTICATED);
+
 	wusbhc = wusbhc_get_by_usb_dev(usb_dev);
 	if (wusbhc == NULL)
 		goto error_nodev;
diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c
index f4aa28eca70d..8118db7f1d8d 100644
--- a/drivers/usb/wusbcore/security.c
+++ b/drivers/usb/wusbcore/security.c
@@ -312,6 +312,7 @@ int wusb_dev_update_address(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev)
 	result = wusb_set_dev_addr(wusbhc, wusb_dev, 0);
 	if (result < 0)
 		goto error_addr0;
+	usb_set_device_state(usb_dev, USB_STATE_DEFAULT);
 	usb_ep0_reinit(usb_dev);
 
 	/* Set new (authenticated) address. */
@@ -327,6 +328,7 @@ int wusb_dev_update_address(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev)
 	result = wusb_set_dev_addr(wusbhc, wusb_dev, new_address);
 	if (result < 0)
 		goto error_addr;
+	usb_set_device_state(usb_dev, USB_STATE_ADDRESS);
 	usb_ep0_reinit(usb_dev);
 	usb_dev->authenticated = 1;
 error_addr:
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index fa777db7f7eb..d9d54803dbcb 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -763,8 +763,8 @@ enum usb_device_state {
 	/* chapter 9 and authentication (wireless) device states */
 	USB_STATE_ATTACHED,
 	USB_STATE_POWERED,			/* wired */
-	USB_STATE_UNAUTHENTICATED,		/* auth */
 	USB_STATE_RECONNECTING,			/* auth */
+	USB_STATE_UNAUTHENTICATED,		/* auth */
 	USB_STATE_DEFAULT,			/* limited function */
 	USB_STATE_ADDRESS,
 	USB_STATE_CONFIGURED,			/* most functions */
-- 
cgit v1.2.3


From 16e2e5f634f86ccda18366967c4e592eb61bc9cc Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 3 Mar 2009 16:44:13 -0800
Subject: USB: make transfer_buffer_lengths in struct urb field u32

Roel Kluin pointed out that transfer_buffer_lengths in struct urb was
declared as an 'int'.  This patch changes this field to be 'u32' to
prevent any potential negative conversion and comparison errors.

This triggered a few compiler warning messages when these fields were
being used with the min macro, so they have also been fixed up in this
patch.

Cc: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/gadget/dummy_hcd.c  | 2 +-
 drivers/usb/host/isp116x-hcd.c  | 2 +-
 drivers/usb/host/r8a66597-hcd.c | 2 +-
 drivers/usb/host/sl811-hcd.c    | 4 ++--
 drivers/usb/misc/ftdi-elan.c    | 6 +++---
 include/linux/usb.h             | 2 +-
 6 files changed, 9 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 3b42888b72f8..a56b24d305f8 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -1437,7 +1437,7 @@ restart:
 					}
 					if (urb->transfer_buffer_length > 1)
 						buf [1] = 0;
-					urb->actual_length = min (2,
+					urb->actual_length = min_t(u32, 2,
 						urb->transfer_buffer_length);
 					value = 0;
 					status = 0;
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 4dda31b26892..a2b305477afe 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -772,7 +772,7 @@ static int isp116x_urb_enqueue(struct usb_hcd *hcd,
 		break;
 	case PIPE_INTERRUPT:
 		urb->interval = ep->period;
-		ep->length = min((int)ep->maxpacket,
+		ep->length = min_t(u32, ep->maxpacket,
 				 urb->transfer_buffer_length);
 
 		/* urb submitted for already existing endpoint */
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 5e942d94aebe..713f4cf0b0dd 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -1394,7 +1394,7 @@ static void packet_write(struct r8a66597 *r8a66597, u16 pipenum)
 			   (int)urb->iso_frame_desc[td->iso_cnt].length);
 	} else {
 		buf = (u16 *)(urb->transfer_buffer + urb->actual_length);
-		size = min((int)bufsize,
+		size = min_t(u32, bufsize,
 			   urb->transfer_buffer_length - urb->actual_length);
 	}
 
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index e106e9d48d4a..a949259f18b9 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -230,7 +230,7 @@ static void in_packet(
 	writeb(usb_pipedevice(urb->pipe), data_reg);
 
 	sl811_write(sl811, bank + SL11H_HOSTCTLREG, control);
-	ep->length = min((int)len,
+	ep->length = min_t(u32, len,
 			urb->transfer_buffer_length - urb->actual_length);
 	PACKET("IN%s/%d qh%p len%d\n", ep->nak_count ? "/retry" : "",
 			!!usb_gettoggle(urb->dev, ep->epnum, 0), ep, len);
@@ -255,7 +255,7 @@ static void out_packet(
 	buf = urb->transfer_buffer + urb->actual_length;
 	prefetch(buf);
 
-	len = min((int)ep->maxpacket,
+	len = min_t(u32, ep->maxpacket,
 			urb->transfer_buffer_length - urb->actual_length);
 
 	if (!(control & SL11H_HCTLMASK_ISOCH)
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 79a7668ef264..9d0675ed0d4c 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -1568,7 +1568,7 @@ static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number,
                         struct u132_target *target = &ftdi->target[ed];
                         struct u132_command *command = &ftdi->command[
                                 COMMAND_MASK & ftdi->command_next];
-                        int remaining_length = urb->transfer_buffer_length -
+                        u32 remaining_length = urb->transfer_buffer_length -
                                 urb->actual_length;
                         command->header = 0x82 | (ed << 5);
                         if (remaining_length == 0) {
@@ -1702,7 +1702,7 @@ static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number,
                                 | (address << 0);
                         command->width = usb_maxpacket(urb->dev, urb->pipe,
                                 usb_pipeout(urb->pipe));
-                        command->follows = min(1024,
+                        command->follows = min_t(u32, 1024,
                                 urb->transfer_buffer_length -
                                 urb->actual_length);
                         command->value = 0;
@@ -1766,7 +1766,7 @@ static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number,
                 mutex_lock(&ftdi->u132_lock);
                 command_size = ftdi->command_next - ftdi->command_head;
                 if (command_size < COMMAND_SIZE) {
-                        int remaining_length = urb->transfer_buffer_length -
+                        u32 remaining_length = urb->transfer_buffer_length -
                                 urb->actual_length;
                         struct u132_target *target = &ftdi->target[ed];
                         struct u132_command *command = &ftdi->command[
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 0c05ff621192..db8808e05a2a 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1177,7 +1177,7 @@ struct urb {
 	unsigned int transfer_flags;	/* (in) URB_SHORT_NOT_OK | ...*/
 	void *transfer_buffer;		/* (in) associated data buffer */
 	dma_addr_t transfer_dma;	/* (in) dma addr for transfer_buffer */
-	int transfer_buffer_length;	/* (in) data buffer length */
+	u32 transfer_buffer_length;	/* (in) data buffer length */
 	int actual_length;		/* (return) actual transfer length */
 	unsigned char *setup_packet;	/* (in) setup packet (control only) */
 	dma_addr_t setup_dma;		/* (in) dma addr for setup_packet */
-- 
cgit v1.2.3


From 8c209e6782ca0e3046803fc04a5ac01c8c10437a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Fri, 6 Mar 2009 21:31:03 -0800
Subject: USB: make actual_length in struct urb field u32

actual_length should also be a u32 and not a signed value.  This patch
changes this field to be 'u32' to prevent any potential negative
conversion and comparison errors.

This triggered a few compiler warning messages when these fields were
being used with the min macro, so they have also been fixed up in this
patch.

Cc: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/serial/ftdi_sio.c | 2 +-
 include/linux/usb.h           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index adeb23fb8003..dcc87aaa8628 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1947,7 +1947,7 @@ static void ftdi_process_read(struct work_struct *work)
 			priv->prev_status = new_status;
 		}
 
-		length = min(PKTSZ, urb->actual_length-packet_offset)-2;
+		length = min_t(u32, PKTSZ, urb->actual_length-packet_offset)-2;
 		if (length < 0) {
 			dev_err(&port->dev, "%s - bad packet length: %d\n",
 				__func__, length+2);
diff --git a/include/linux/usb.h b/include/linux/usb.h
index db8808e05a2a..c6b2ab41b908 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1178,7 +1178,7 @@ struct urb {
 	void *transfer_buffer;		/* (in) associated data buffer */
 	dma_addr_t transfer_dma;	/* (in) dma addr for transfer_buffer */
 	u32 transfer_buffer_length;	/* (in) data buffer length */
-	int actual_length;		/* (return) actual transfer length */
+	u32 actual_length;		/* (return) actual transfer length */
 	unsigned char *setup_packet;	/* (in) setup packet (control only) */
 	dma_addr_t setup_dma;		/* (in) dma addr for setup_packet */
 	int start_frame;		/* (modify) start frame (ISO) */
-- 
cgit v1.2.3


From 64a3a25f440c65510cb0d15080dcd2f0032d6051 Mon Sep 17 00:00:00 2001
From: "D.J. Capelis" <dev@capelis.dj>
Date: Wed, 4 Mar 2009 10:27:52 -0800
Subject: USB: pedantic: spelling correction in comment for ch9.h

Just noticed this during a grep, figured I might as well send it in.

From: D.J. Capelis <dev@capelis.dj>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 include/linux/usb/ch9.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index d9d54803dbcb..b145119a90da 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -102,7 +102,7 @@
 #define USB_REQ_LOOPBACK_DATA_READ	0x16
 #define USB_REQ_SET_INTERFACE_DS	0x17
 
-/* The Link Power Mangement (LPM) ECN defines USB_REQ_TEST_AND_SET command,
+/* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command,
  * used by hubs to put ports into a new L1 suspend state, except that it
  * forgot to define its number ...
  */
-- 
cgit v1.2.3


From 8942939a6c83f34615de5ae041cc9ca846923f94 Mon Sep 17 00:00:00 2001
From: David Brownell <dbrownell@users.sourceforge.net>
Date: Thu, 19 Mar 2009 14:14:17 -0700
Subject: USB: gadget: composite device-level suspend/resume hooks

Address one open question in the composite gadget framework:
Yes, we should have device-level suspend/resume callbacks
in addition to the function-level ones.  We have at least one
scenario (with gadget zero in OTG test mode) that's awkward
to handle without it.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/gadget/composite.c | 8 ++++++--
 include/linux/usb/composite.h  | 8 ++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 40f1da77a006..59e85234fa0a 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1014,7 +1014,7 @@ composite_suspend(struct usb_gadget *gadget)
 	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
 	struct usb_function		*f;
 
-	/* REVISIT:  should we have config and device level
+	/* REVISIT:  should we have config level
 	 * suspend/resume callbacks?
 	 */
 	DBG(cdev, "suspend\n");
@@ -1024,6 +1024,8 @@ composite_suspend(struct usb_gadget *gadget)
 				f->suspend(f);
 		}
 	}
+	if (composite->suspend)
+		composite->suspend(cdev);
 }
 
 static void
@@ -1032,10 +1034,12 @@ composite_resume(struct usb_gadget *gadget)
 	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
 	struct usb_function		*f;
 
-	/* REVISIT:  should we have config and device level
+	/* REVISIT:  should we have config level
 	 * suspend/resume callbacks?
 	 */
 	DBG(cdev, "resume\n");
+	if (composite->resume)
+		composite->resume(cdev);
 	if (cdev->config) {
 		list_for_each_entry(f, &cdev->config->functions, list) {
 			if (f->resume)
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 935c380ffe47..acd7b0f06c8a 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -244,6 +244,10 @@ int usb_add_config(struct usb_composite_dev *,
  *	value; it should return zero on successful initialization.
  * @unbind: Reverses @bind(); called as a side effect of unregistering
  *	this driver.
+ * @suspend: Notifies when the host stops sending USB traffic,
+ *	after function notifications
+ * @resume: Notifies configuration when the host restarts USB traffic,
+ *	before function notifications
  *
  * Devices default to reporting self powered operation.  Devices which rely
  * on bus powered operation should report this in their @bind() method.
@@ -268,6 +272,10 @@ struct usb_composite_driver {
 
 	int			(*bind)(struct usb_composite_dev *);
 	int			(*unbind)(struct usb_composite_dev *);
+
+	/* global suspend hooks */
+	void			(*suspend)(struct usb_composite_dev *);
+	void			(*resume)(struct usb_composite_dev *);
 };
 
 extern int usb_composite_register(struct usb_composite_driver *);
-- 
cgit v1.2.3


From 38938bfe3489394e2eed5e40c9bb8f66a2ce1405 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 24 Mar 2009 16:37:55 -0700
Subject: netlink: add NETLINK_NO_ENOBUFS socket flag

This patch adds the NETLINK_NO_ENOBUFS socket flag. This flag can
be used by unicast and broadcast listeners to avoid receiving
ENOBUFS errors.

Generally speaking, ENOBUFS errors are useful to notify two things
to the listener:

a) You may increase the receiver buffer size via setsockopt().
b) You have lost messages, you may be out of sync.

In some cases, ignoring ENOBUFS errors can be useful. For example:

a) nfnetlink_queue: this subsystem does not have any sort of resync
method and you can decide to ignore ENOBUFS once you have set a
given buffer size.

b) ctnetlink: you can use this together with the socket flag
NETLINK_BROADCAST_SEND_ERROR to stop getting ENOBUFS errors as
you do not need to resync (packets whose event are not delivered
are drop to provide reliable logging and state-synchronization).

Moreover, the use of NETLINK_NO_ENOBUFS also reduces a "go up, go down"
effect in terms of performance which is due to the netlink congestion
control when the listener cannot back off. The effect is the following:

1) throughput rate goes up and netlink messages are inserted in the
receiver buffer.
2) Then, netlink buffer fills and overruns (set on nlk->state bit 0).
3) While the listener empties the receiver buffer, netlink keeps
dropping messages. Thus, throughput goes dramatically down.
4) Then, once the listener has emptied the buffer (nlk->state
bit 0 is set off), goto step 1.

This effect is easy to trigger with netlink broadcast under heavy
load, and it is more noticeable when using a big receiver buffer.
You can find some results in [1] that show this problem.

[1] http://1984.lsi.us.es/linux/netlink/

This patch also includes the use of sk_drop to account the number of
netlink messages drop due to overrun. This value is shown in
/proc/net/netlink.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netlink.h  |  1 +
 net/netlink/af_netlink.c | 38 ++++++++++++++++++++++++++++++++------
 2 files changed, 33 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 1e6bf995435c..5ba398e90304 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -104,6 +104,7 @@ struct nlmsgerr
 #define NETLINK_DROP_MEMBERSHIP	2
 #define NETLINK_PKTINFO		3
 #define NETLINK_BROADCAST_ERROR	4
+#define NETLINK_NO_ENOBUFS	5
 
 struct nl_pktinfo
 {
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index b73d4e61c5ac..8b6bbb3032b0 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -86,6 +86,7 @@ struct netlink_sock {
 #define NETLINK_KERNEL_SOCKET	0x1
 #define NETLINK_RECV_PKTINFO	0x2
 #define NETLINK_BROADCAST_SEND_ERROR	0x4
+#define NETLINK_RECV_NO_ENOBUFS	0x8
 
 static inline struct netlink_sock *nlk_sk(struct sock *sk)
 {
@@ -717,10 +718,15 @@ static int netlink_getname(struct socket *sock, struct sockaddr *addr,
 
 static void netlink_overrun(struct sock *sk)
 {
-	if (!test_and_set_bit(0, &nlk_sk(sk)->state)) {
-		sk->sk_err = ENOBUFS;
-		sk->sk_error_report(sk);
+	struct netlink_sock *nlk = nlk_sk(sk);
+
+	if (!(nlk->flags & NETLINK_RECV_NO_ENOBUFS)) {
+		if (!test_and_set_bit(0, &nlk_sk(sk)->state)) {
+			sk->sk_err = ENOBUFS;
+			sk->sk_error_report(sk);
+		}
 	}
+	atomic_inc(&sk->sk_drops);
 }
 
 static struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid)
@@ -1182,6 +1188,15 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname,
 			nlk->flags &= ~NETLINK_BROADCAST_SEND_ERROR;
 		err = 0;
 		break;
+	case NETLINK_NO_ENOBUFS:
+		if (val) {
+			nlk->flags |= NETLINK_RECV_NO_ENOBUFS;
+			clear_bit(0, &nlk->state);
+			wake_up_interruptible(&nlk->wait);
+		} else
+			nlk->flags &= ~NETLINK_RECV_NO_ENOBUFS;
+		err = 0;
+		break;
 	default:
 		err = -ENOPROTOOPT;
 	}
@@ -1224,6 +1239,16 @@ static int netlink_getsockopt(struct socket *sock, int level, int optname,
 			return -EFAULT;
 		err = 0;
 		break;
+	case NETLINK_NO_ENOBUFS:
+		if (len < sizeof(int))
+			return -EINVAL;
+		len = sizeof(int);
+		val = nlk->flags & NETLINK_RECV_NO_ENOBUFS ? 1 : 0;
+		if (put_user(len, optlen) ||
+		    put_user(val, optval))
+			return -EFAULT;
+		err = 0;
+		break;
 	default:
 		err = -ENOPROTOOPT;
 	}
@@ -1879,12 +1904,12 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
 	if (v == SEQ_START_TOKEN)
 		seq_puts(seq,
 			 "sk       Eth Pid    Groups   "
-			 "Rmem     Wmem     Dump     Locks\n");
+			 "Rmem     Wmem     Dump     Locks     Drops\n");
 	else {
 		struct sock *s = v;
 		struct netlink_sock *nlk = nlk_sk(s);
 
-		seq_printf(seq, "%p %-3d %-6d %08x %-8d %-8d %p %d\n",
+		seq_printf(seq, "%p %-3d %-6d %08x %-8d %-8d %p %-8d %-8d\n",
 			   s,
 			   s->sk_protocol,
 			   nlk->pid,
@@ -1892,7 +1917,8 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
 			   atomic_read(&s->sk_rmem_alloc),
 			   atomic_read(&s->sk_wmem_alloc),
 			   nlk->cb,
-			   atomic_read(&s->sk_refcnt)
+			   atomic_read(&s->sk_refcnt),
+			   atomic_read(&s->sk_drops)
 			);
 
 	}
-- 
cgit v1.2.3


From 2c0f3e96f3fc7bbd1cb3caa601f19cf030c2b958 Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay.sievers@vrfy.org>
Date: Tue, 24 Mar 2009 16:38:23 -0700
Subject: wimax: struct device - replace bus_id with dev_name(), dev_set_name()

Cc: inaky.perez-gonzalez@intel.com
Cc: linux-wimax@intel.com
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
---
 drivers/net/wimax/i2400m/driver.c    | 2 +-
 drivers/net/wimax/i2400m/usb-notif.c | 2 +-
 include/linux/wimax/debug.h          | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c
index e80a0b65a754..d58b971faa64 100644
--- a/drivers/net/wimax/i2400m/driver.c
+++ b/drivers/net/wimax/i2400m/driver.c
@@ -613,7 +613,7 @@ int i2400m_setup(struct i2400m *i2400m, enum i2400m_bri bm_flags)
 	d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
 
 	snprintf(wimax_dev->name, sizeof(wimax_dev->name),
-		 "i2400m-%s:%s", dev->bus->name, dev->bus_id);
+		 "i2400m-%s:%s", dev->bus->name, dev_name(dev));
 
 	i2400m->bm_cmd_buf = kzalloc(I2400M_BM_CMD_BUF_SIZE, GFP_KERNEL);
 	if (i2400m->bm_cmd_buf == NULL) {
diff --git a/drivers/net/wimax/i2400m/usb-notif.c b/drivers/net/wimax/i2400m/usb-notif.c
index 9702c22b2497..0528879f6d39 100644
--- a/drivers/net/wimax/i2400m/usb-notif.c
+++ b/drivers/net/wimax/i2400m/usb-notif.c
@@ -102,7 +102,7 @@ int i2400mu_notification_grok(struct i2400mu *i2400mu, const void *buf,
 		dev_err(dev, "HW BUG? Unknown/unexpected data in notification "
 			"message (%zu bytes)\n", buf_len);
 		snprintf(prefix, sizeof(prefix), "%s %s: ",
-			 dev_driver_string(dev) , dev->bus_id);
+			 dev_driver_string(dev) , dev_name(dev));
 		if (buf_len > 64) {
 			print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET,
 				       8, 4, buf, 64, 0);
diff --git a/include/linux/wimax/debug.h b/include/linux/wimax/debug.h
index ba0c49399a83..c703e0340423 100644
--- a/include/linux/wimax/debug.h
+++ b/include/linux/wimax/debug.h
@@ -178,7 +178,7 @@ void __d_head(char *head, size_t head_size,
 		WARN_ON(1);
 	} else
 		snprintf(head, head_size, "%s %s: ",
-			 dev_driver_string(dev), dev->bus_id);
+			 dev_driver_string(dev), dev_name(dev));
 }
 
 
-- 
cgit v1.2.3


From 1fa5ae857bb14f6046205171d98506d8112dd74e Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay.sievers@vrfy.org>
Date: Sun, 25 Jan 2009 15:17:37 +0100
Subject: driver core: get rid of struct device's bus_id string array

Now that all users of bus_id is gone, we can remove it from struct
device.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/core.c     | 39 +++++++++++++++++++--------------------
 include/linux/device.h  |  4 +---
 include/linux/kobject.h |  2 ++
 lib/kobject.c           |  2 +-
 4 files changed, 23 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/drivers/base/core.c b/drivers/base/core.c
index f3eae630e589..059966b617f6 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -777,17 +777,12 @@ static void device_remove_class_symlinks(struct device *dev)
 int dev_set_name(struct device *dev, const char *fmt, ...)
 {
 	va_list vargs;
-	char *s;
+	int err;
 
 	va_start(vargs, fmt);
-	vsnprintf(dev->bus_id, sizeof(dev->bus_id), fmt, vargs);
+	err = kobject_set_name_vargs(&dev->kobj, fmt, vargs);
 	va_end(vargs);
-
-	/* ewww... some of these buggers have / in the name... */
-	while ((s = strchr(dev->bus_id, '/')))
-		*s = '!';
-
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL_GPL(dev_set_name);
 
@@ -864,12 +859,17 @@ int device_add(struct device *dev)
 	if (!dev)
 		goto done;
 
-	/* Temporarily support init_name if it is set.
-	 * It will override bus_id for now */
-	if (dev->init_name)
-		dev_set_name(dev, "%s", dev->init_name);
+	/*
+	 * for statically allocated devices, which should all be converted
+	 * some day, we need to initialize the name. We prevent reading back
+	 * the name, and force the use of dev_name()
+	 */
+	if (dev->init_name) {
+		dev_set_name(dev, dev->init_name);
+		dev->init_name = NULL;
+	}
 
-	if (!strlen(dev->bus_id))
+	if (!dev_name(dev))
 		goto done;
 
 	pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
@@ -1348,7 +1348,10 @@ struct device *device_create_vargs(struct class *class, struct device *parent,
 	dev->release = device_create_release;
 	dev_set_drvdata(dev, drvdata);
 
-	vsnprintf(dev->bus_id, BUS_ID_SIZE, fmt, args);
+	retval = kobject_set_name_vargs(&dev->kobj, fmt, args);
+	if (retval)
+		goto error;
+
 	retval = device_register(dev);
 	if (retval)
 		goto error;
@@ -1452,19 +1455,15 @@ int device_rename(struct device *dev, char *new_name)
 		old_class_name = make_class_name(dev->class->name, &dev->kobj);
 #endif
 
-	old_device_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL);
+	old_device_name = kstrdup(dev_name(dev), GFP_KERNEL);
 	if (!old_device_name) {
 		error = -ENOMEM;
 		goto out;
 	}
-	strlcpy(old_device_name, dev->bus_id, BUS_ID_SIZE);
-	strlcpy(dev->bus_id, new_name, BUS_ID_SIZE);
 
 	error = kobject_rename(&dev->kobj, new_name);
-	if (error) {
-		strlcpy(dev->bus_id, old_device_name, BUS_ID_SIZE);
+	if (error)
 		goto out;
-	}
 
 #ifdef CONFIG_SYSFS_DEPRECATED
 	if (old_class_name) {
diff --git a/include/linux/device.h b/include/linux/device.h
index 47f343c7bdda..d5706c448bcb 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -374,7 +374,6 @@ struct device {
 	struct device		*parent;
 
 	struct kobject kobj;
-	char	bus_id[BUS_ID_SIZE];	/* position on parent bus */
 	unsigned		uevent_suppress:1;
 	const char		*init_name; /* initial name of the device */
 	struct device_type	*type;
@@ -427,8 +426,7 @@ struct device {
 
 static inline const char *dev_name(const struct device *dev)
 {
-	/* will be changed into kobject_name(&dev->kobj) in the near future */
-	return dev->bus_id;
+	return kobject_name(&dev->kobj);
 }
 
 extern int dev_set_name(struct device *dev, const char *name, ...)
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 5437ac0276e2..c9c214d7bba2 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -72,6 +72,8 @@ struct kobject {
 
 extern int kobject_set_name(struct kobject *kobj, const char *name, ...)
 			    __attribute__((format(printf, 2, 3)));
+extern int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
+				  va_list vargs);
 
 static inline const char *kobject_name(const struct kobject *kobj)
 {
diff --git a/lib/kobject.c b/lib/kobject.c
index 0487d1f64806..a6dec32f2ddd 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -212,7 +212,7 @@ static int kobject_add_internal(struct kobject *kobj)
  * @fmt: format string used to build the name
  * @vargs: vargs to format the string.
  */
-static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
+int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
 				  va_list vargs)
 {
 	const char *old_name = kobj->name;
-- 
cgit v1.2.3


From 57fee4a58fe802272742caae248872c392a60670 Mon Sep 17 00:00:00 2001
From: Eric Miao <eric.miao@marvell.com>
Date: Wed, 4 Feb 2009 11:52:40 +0800
Subject: platform: introduce module id table for platform devices

Now platform_device is being widely used on SoC processors where the
peripherals are attached to the system bus, which is simple enough.

However, silicon IPs for these SoCs are usually shared heavily across
a family of processors, even products from different companies.  This
makes the original simple driver name based matching insufficient, or
simply not straight-forward.

Introduce a module id table for platform devices, and makes it clear
that a platform driver is able to support some shared IP and handle
slight differences across different platforms (by 'driver_data').
Module alias is handled automatically when a MODULE_DEVICE_TABLE()
is defined.

To not disturb the current platform drivers too much, the matched id
entry is recorded and can be retrieved by platform_get_device_id().

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/platform.c         | 23 ++++++++++++++++++++++-
 include/linux/mod_devicetable.h |  9 +++++++++
 include/linux/platform_device.h |  6 ++++++
 scripts/mod/file2alias.c        | 12 ++++++++++++
 4 files changed, 49 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 62a8768d96b3..ec993aa6a2ca 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -584,10 +584,25 @@ static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
 	struct platform_device	*pdev = to_platform_device(dev);
 
-	add_uevent_var(env, "MODALIAS=platform:%s", pdev->name);
+	add_uevent_var(env, "MODALIAS=%s%s", PLATFORM_MODULE_PREFIX,
+		(pdev->id_entry) ? pdev->id_entry->name : pdev->name);
 	return 0;
 }
 
+static const struct platform_device_id *platform_match_id(
+			struct platform_device_id *id,
+			struct platform_device *pdev)
+{
+	while (id->name[0]) {
+		if (strcmp(pdev->name, id->name) == 0) {
+			pdev->id_entry = id;
+			return id;
+		}
+		id++;
+	}
+	return NULL;
+}
+
 /**
  * platform_match - bind platform device to platform driver.
  * @dev: device.
@@ -604,7 +619,13 @@ static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
 static int platform_match(struct device *dev, struct device_driver *drv)
 {
 	struct platform_device *pdev = to_platform_device(dev);
+	struct platform_driver *pdrv = to_platform_driver(drv);
+
+	/* match against the id table first */
+	if (pdrv->id_table)
+		return platform_match_id(pdrv->id_table, pdev) != NULL;
 
+	/* fall-back to driver name match */
 	return (strcmp(pdev->name, drv->name) == 0);
 }
 
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index fde86671f48f..1bf5900ffe43 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -454,4 +454,13 @@ struct dmi_system_id {
 
 #define DMI_MATCH(a, b)	{ a, b }
 
+#define PLATFORM_NAME_SIZE	20
+#define PLATFORM_MODULE_PREFIX	"platform:"
+
+struct platform_device_id {
+	char name[PLATFORM_NAME_SIZE];
+	kernel_ulong_t driver_data
+			__attribute__((aligned(sizeof(kernel_ulong_t))));
+};
+
 #endif /* LINUX_MOD_DEVICETABLE_H */
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 9a342699c607..76aef7be32ab 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -12,6 +12,7 @@
 #define _PLATFORM_DEVICE_H_
 
 #include <linux/device.h>
+#include <linux/mod_devicetable.h>
 
 struct platform_device {
 	const char	* name;
@@ -19,8 +20,12 @@ struct platform_device {
 	struct device	dev;
 	u32		num_resources;
 	struct resource	* resource;
+
+	struct platform_device_id	*id_entry;
 };
 
+#define platform_get_device_id(pdev)	((pdev)->id_entry)
+
 #define to_platform_device(x) container_of((x), struct platform_device, dev)
 
 extern int platform_device_register(struct platform_device *);
@@ -56,6 +61,7 @@ struct platform_driver {
 	int (*resume_early)(struct platform_device *);
 	int (*resume)(struct platform_device *);
 	struct device_driver driver;
+	struct platform_device_id *id_table;
 };
 
 extern int platform_driver_register(struct platform_driver *);
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 4eea60b1693e..a3344285ccf4 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -710,6 +710,14 @@ static int do_dmi_entry(const char *filename, struct dmi_system_id *id,
 	strcat(alias, ":");
 	return 1;
 }
+
+static int do_platform_entry(const char *filename,
+			     struct platform_device_id *id, char *alias)
+{
+	sprintf(alias, PLATFORM_MODULE_PREFIX "%s", id->name);
+	return 1;
+}
+
 /* Ignore any prefix, eg. some architectures prepend _ */
 static inline int sym_is(const char *symbol, const char *name)
 {
@@ -849,6 +857,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 		do_table(symval, sym->st_size,
 			 sizeof(struct dmi_system_id), "dmi",
 			 do_dmi_entry, mod);
+	else if (sym_is(symname, "__mod_platform_device_table"))
+		do_table(symval, sym->st_size,
+			 sizeof(struct platform_device_id), "platform",
+			 do_platform_entry, mod);
 	free(zeros);
 }
 
-- 
cgit v1.2.3


From 8205779114e8f612549d191f8e151526a74ab9f2 Mon Sep 17 00:00:00 2001
From: "Hans J. Koch" <hjk@linutronix.de>
Date: Wed, 7 Jan 2009 00:15:39 +0100
Subject: UIO: Add name attributes for mappings and port regions

If a UIO device has several memory mappings, it can be difficult for userspace
to find the right one. The situation becomes even worse if the UIO driver can
handle different versions of a card that have different numbers of mappings.
Benedikt Spranger has such cards and pointed this out to me. Thanks, Bene!

To address this problem, this patch adds "name" sysfs attributes for each
mapping. Userspace can use these to clearly identify each mapping. The name
string is optional. If a driver doesn't set it, an empty string will be
returned, so this patch won't break existing drivers.

The same problem exists for port region information, so a "name" attribute is
added there, too.

Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 Documentation/DocBook/uio-howto.tmpl | 29 +++++++++++++++++++++++++----
 drivers/uio/uio.c                    | 22 ++++++++++++++++++++++
 include/linux/uio_driver.h           |  4 ++++
 3 files changed, 51 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl
index 52e1b79ce0e6..8f6e3b2403c7 100644
--- a/Documentation/DocBook/uio-howto.tmpl
+++ b/Documentation/DocBook/uio-howto.tmpl
@@ -41,6 +41,13 @@ GPL version 2.
 </abstract>
 
 <revhistory>
+	<revision>
+	<revnumber>0.8</revnumber>
+	<date>2008-12-24</date>
+	<authorinitials>hjk</authorinitials>
+	<revremark>Added name attributes in mem and portio sysfs directories.
+		</revremark>
+	</revision>
 	<revision>
 	<revnumber>0.7</revnumber>
 	<date>2008-12-23</date>
@@ -303,10 +310,17 @@ interested in translating it, please email me
 	appear if the size of the mapping is not 0.
 </para>
 <para>
-	Each <filename>mapX/</filename> directory contains two read-only files
-	that show start address and size of the memory:
+	Each <filename>mapX/</filename> directory contains four read-only files
+	that show attributes of the memory:
 </para>
 <itemizedlist>
+<listitem>
+	<para>
+	<filename>name</filename>: A string identifier for this mapping. This
+	is optional, the string can be empty. Drivers can set this to make it
+	easier for userspace to find the correct mapping.
+	</para>
+</listitem>
 <listitem>
 	<para>
 	<filename>addr</filename>: The address of memory that can be mapped.
@@ -366,10 +380,17 @@ offset = N * getpagesize();
 	<filename>/sys/class/uio/uioX/portio/</filename>.
 </para>
 <para>
-	Each <filename>portX/</filename> directory contains three read-only
-	files that show start, size, and type of the port region:
+	Each <filename>portX/</filename> directory contains four read-only
+	files that show name, start, size, and type of the port region:
 </para>
 <itemizedlist>
+<listitem>
+	<para>
+	<filename>name</filename>: A string identifier for this port region.
+	The string is optional and can be empty. Drivers can set it to make it
+	easier for userspace to find a certain port region.
+	</para>
+</listitem>
 <listitem>
 	<para>
 	<filename>start</filename>: The first port of this region.
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 4ca85a113aa2..68a496557788 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -61,6 +61,14 @@ struct uio_map {
 };
 #define to_map(map) container_of(map, struct uio_map, kobj)
 
+static ssize_t map_name_show(struct uio_mem *mem, char *buf)
+{
+	if (unlikely(!mem->name))
+		mem->name = "";
+
+	return sprintf(buf, "%s\n", mem->name);
+}
+
 static ssize_t map_addr_show(struct uio_mem *mem, char *buf)
 {
 	return sprintf(buf, "0x%lx\n", mem->addr);
@@ -82,6 +90,8 @@ struct map_sysfs_entry {
 	ssize_t (*store)(struct uio_mem *, const char *, size_t);
 };
 
+static struct map_sysfs_entry name_attribute =
+	__ATTR(name, S_IRUGO, map_name_show, NULL);
 static struct map_sysfs_entry addr_attribute =
 	__ATTR(addr, S_IRUGO, map_addr_show, NULL);
 static struct map_sysfs_entry size_attribute =
@@ -90,6 +100,7 @@ static struct map_sysfs_entry offset_attribute =
 	__ATTR(offset, S_IRUGO, map_offset_show, NULL);
 
 static struct attribute *attrs[] = {
+	&name_attribute.attr,
 	&addr_attribute.attr,
 	&size_attribute.attr,
 	&offset_attribute.attr,
@@ -133,6 +144,14 @@ struct uio_portio {
 };
 #define to_portio(portio) container_of(portio, struct uio_portio, kobj)
 
+static ssize_t portio_name_show(struct uio_port *port, char *buf)
+{
+	if (unlikely(!port->name))
+		port->name = "";
+
+	return sprintf(buf, "%s\n", port->name);
+}
+
 static ssize_t portio_start_show(struct uio_port *port, char *buf)
 {
 	return sprintf(buf, "0x%lx\n", port->start);
@@ -159,6 +178,8 @@ struct portio_sysfs_entry {
 	ssize_t (*store)(struct uio_port *, const char *, size_t);
 };
 
+static struct portio_sysfs_entry portio_name_attribute =
+	__ATTR(name, S_IRUGO, portio_name_show, NULL);
 static struct portio_sysfs_entry portio_start_attribute =
 	__ATTR(start, S_IRUGO, portio_start_show, NULL);
 static struct portio_sysfs_entry portio_size_attribute =
@@ -167,6 +188,7 @@ static struct portio_sysfs_entry portio_porttype_attribute =
 	__ATTR(porttype, S_IRUGO, portio_porttype_show, NULL);
 
 static struct attribute *portio_attrs[] = {
+	&portio_name_attribute.attr,
 	&portio_start_attribute.attr,
 	&portio_size_attribute.attr,
 	&portio_porttype_attribute.attr,
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index a0bb6bd2e5c1..5dcc9ff72f69 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -22,6 +22,7 @@ struct uio_map;
 
 /**
  * struct uio_mem - description of a UIO memory region
+ * @name:		name of the memory region for identification
  * @addr:		address of the device's memory
  * @size:		size of IO
  * @memtype:		type of memory addr points to
@@ -29,6 +30,7 @@ struct uio_map;
  * @map:		for use by the UIO core only.
  */
 struct uio_mem {
+	const char		*name;
 	unsigned long		addr;
 	unsigned long		size;
 	int			memtype;
@@ -42,12 +44,14 @@ struct uio_portio;
 
 /**
  * struct uio_port - description of a UIO port region
+ * @name:		name of the port region for identification
  * @start:		start of port region
  * @size:		size of port region
  * @porttype:		type of port (see UIO_PORT_* below)
  * @portio:		for use by the UIO core only.
  */
 struct uio_port {
+	const char		*name;
 	unsigned long		start;
 	unsigned long		size;
 	int			porttype;
-- 
cgit v1.2.3


From b23530ebc339c4092ae2c9f37341a5398fea8b89 Mon Sep 17 00:00:00 2001
From: Ming Lei <tom.leiming@gmail.com>
Date: Sat, 21 Feb 2009 16:45:07 +0800
Subject: driver core: remove polling for driver_probe_done(v5)

This patch removes 100ms polling for driver_probe_done in
wait_for_device_probe(), and uses wait_event() instead.
Removing polling in fs initialization may lead to
a faster boot.

This patch also changes the return type of wait_for_device_done()
from int to void.

This patch is against Arjan's patch in linux-next tree.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/dd.c      | 8 ++------
 include/linux/device.h | 2 +-
 2 files changed, 3 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 3f32df7ed373..0dfd08c15921 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -172,16 +172,12 @@ int driver_probe_done(void)
 /**
  * wait_for_device_probe
  * Wait for device probing to be completed.
- *
- * Note: this function polls at 100 msec intervals.
  */
-int wait_for_device_probe(void)
+void wait_for_device_probe(void)
 {
 	/* wait for the known devices to complete their probing */
-	while (driver_probe_done() != 0)
-		msleep(100);
+	wait_event(probe_waitqueue, atomic_read(&probe_count) == 0);
 	async_synchronize_full();
-	return 0;
 }
 
 /**
diff --git a/include/linux/device.h b/include/linux/device.h
index d5706c448bcb..c56b154a0bf4 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -147,7 +147,7 @@ extern void put_driver(struct device_driver *drv);
 extern struct device_driver *driver_find(const char *name,
 					 struct bus_type *bus);
 extern int driver_probe_done(void);
-extern int wait_for_device_probe(void);
+extern void wait_for_device_probe(void);
 
 
 /* sysfs interface for exporting driver attributes */
-- 
cgit v1.2.3


From fb069a5d132fb926ed17af3211a114ac7cf27d7a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 16 Dec 2008 12:23:36 -0800
Subject: driver core: create a private portion of struct device

This is to be used to move things out of struct device that no code
outside of the driver core should ever touch.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/base.h    | 12 ++++++++++++
 drivers/base/core.c    |  9 +++++++++
 include/linux/device.h |  3 +++
 3 files changed, 24 insertions(+)

(limited to 'include')

diff --git a/drivers/base/base.h b/drivers/base/base.h
index ca2b0376685b..62a2cb5e1780 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -63,6 +63,18 @@ struct class_private {
 #define to_class(obj)	\
 	container_of(obj, struct class_private, class_subsys.kobj)
 
+/**
+ * struct device_private - structure to hold the private to the driver core portions of the device structure.
+ *
+ * @device - pointer back to the struct class that this structure is
+ * associated with.
+ *
+ * Nothing outside of the driver core should ever touch these fields.
+ */
+struct device_private {
+	struct device *device;
+};
+
 /* initialisation functions */
 extern int devices_init(void);
 extern int buses_init(void);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 059966b617f6..16d859910104 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -109,6 +109,7 @@ static struct sysfs_ops dev_sysfs_ops = {
 static void device_release(struct kobject *kobj)
 {
 	struct device *dev = to_dev(kobj);
+	struct device_private *p = dev->p;
 
 	if (dev->release)
 		dev->release(dev);
@@ -120,6 +121,7 @@ static void device_release(struct kobject *kobj)
 		WARN(1, KERN_ERR "Device '%s' does not have a release() "
 			"function, it is broken and must be fixed.\n",
 			dev_name(dev));
+	kfree(p);
 }
 
 static struct kobj_type device_ktype = {
@@ -859,6 +861,13 @@ int device_add(struct device *dev)
 	if (!dev)
 		goto done;
 
+	dev->p = kzalloc(sizeof(*dev->p), GFP_KERNEL);
+	if (!dev->p) {
+		error = -ENOMEM;
+		goto done;
+	}
+	dev->p->device = dev;
+
 	/*
 	 * for statically allocated devices, which should all be converted
 	 * some day, we need to initialize the name. We prevent reading back
diff --git a/include/linux/device.h b/include/linux/device.h
index c56b154a0bf4..4cf063fea2a9 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -28,6 +28,7 @@
 #define BUS_ID_SIZE		20
 
 struct device;
+struct device_private;
 struct device_driver;
 struct driver_private;
 struct class;
@@ -373,6 +374,8 @@ struct device {
 	struct klist_node	knode_bus;
 	struct device		*parent;
 
+	struct device_private	*p;
+
 	struct kobject kobj;
 	unsigned		uevent_suppress:1;
 	const char		*init_name; /* initial name of the device */
-- 
cgit v1.2.3


From f791b8c836307b58cbf62133a6a772ed1a92fb33 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 16 Dec 2008 12:24:56 -0800
Subject: driver core: move klist_children into private structure

Nothing outside of the driver core should ever touch klist_children, or
knode_parent, so move them out of the public eye.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/base.h    |  6 ++++++
 drivers/base/core.c    | 39 +++++++++++++++++++++++++--------------
 include/linux/device.h |  2 --
 3 files changed, 31 insertions(+), 16 deletions(-)

(limited to 'include')

diff --git a/drivers/base/base.h b/drivers/base/base.h
index 62a2cb5e1780..7c4fafc314c4 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -66,14 +66,20 @@ struct class_private {
 /**
  * struct device_private - structure to hold the private to the driver core portions of the device structure.
  *
+ * @klist_children - klist containing all children of this device
+ * @knode_parent - node in sibling list
  * @device - pointer back to the struct class that this structure is
  * associated with.
  *
  * Nothing outside of the driver core should ever touch these fields.
  */
 struct device_private {
+	struct klist klist_children;
+	struct klist_node knode_parent;
 	struct device *device;
 };
+#define to_device_private_parent(obj)	\
+	container_of(obj, struct device_private, knode_parent)
 
 /* initialisation functions */
 extern int devices_init(void);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 16d859910104..a90f56f64d6f 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -509,14 +509,16 @@ EXPORT_SYMBOL_GPL(device_schedule_callback_owner);
 
 static void klist_children_get(struct klist_node *n)
 {
-	struct device *dev = container_of(n, struct device, knode_parent);
+	struct device_private *p = to_device_private_parent(n);
+	struct device *dev = p->device;
 
 	get_device(dev);
 }
 
 static void klist_children_put(struct klist_node *n)
 {
-	struct device *dev = container_of(n, struct device, knode_parent);
+	struct device_private *p = to_device_private_parent(n);
+	struct device *dev = p->device;
 
 	put_device(dev);
 }
@@ -540,8 +542,6 @@ void device_initialize(struct device *dev)
 {
 	dev->kobj.kset = devices_kset;
 	kobject_init(&dev->kobj, &device_ktype);
-	klist_init(&dev->klist_children, klist_children_get,
-		   klist_children_put);
 	INIT_LIST_HEAD(&dev->dma_pools);
 	init_MUTEX(&dev->sem);
 	spin_lock_init(&dev->devres_lock);
@@ -867,6 +867,8 @@ int device_add(struct device *dev)
 		goto done;
 	}
 	dev->p->device = dev;
+	klist_init(&dev->p->klist_children, klist_children_get,
+		   klist_children_put);
 
 	/*
 	 * for statically allocated devices, which should all be converted
@@ -937,7 +939,8 @@ int device_add(struct device *dev)
 	kobject_uevent(&dev->kobj, KOBJ_ADD);
 	bus_attach_device(dev);
 	if (parent)
-		klist_add_tail(&dev->knode_parent, &parent->klist_children);
+		klist_add_tail(&dev->p->knode_parent,
+			       &parent->p->klist_children);
 
 	if (dev->class) {
 		mutex_lock(&dev->class->p->class_mutex);
@@ -1051,7 +1054,7 @@ void device_del(struct device *dev)
 	device_pm_remove(dev);
 	dpm_sysfs_remove(dev);
 	if (parent)
-		klist_del(&dev->knode_parent);
+		klist_del(&dev->p->knode_parent);
 	if (MAJOR(dev->devt)) {
 		device_remove_sys_dev_entry(dev);
 		device_remove_file(dev, &devt_attr);
@@ -1112,7 +1115,14 @@ void device_unregister(struct device *dev)
 static struct device *next_device(struct klist_iter *i)
 {
 	struct klist_node *n = klist_next(i);
-	return n ? container_of(n, struct device, knode_parent) : NULL;
+	struct device *dev = NULL;
+	struct device_private *p;
+
+	if (n) {
+		p = to_device_private_parent(n);
+		dev = p->device;
+	}
+	return dev;
 }
 
 /**
@@ -1134,7 +1144,7 @@ int device_for_each_child(struct device *parent, void *data,
 	struct device *child;
 	int error = 0;
 
-	klist_iter_init(&parent->klist_children, &i);
+	klist_iter_init(&parent->p->klist_children, &i);
 	while ((child = next_device(&i)) && !error)
 		error = fn(child, data);
 	klist_iter_exit(&i);
@@ -1165,7 +1175,7 @@ struct device *device_find_child(struct device *parent, void *data,
 	if (!parent)
 		return NULL;
 
-	klist_iter_init(&parent->klist_children, &i);
+	klist_iter_init(&parent->p->klist_children, &i);
 	while ((child = next_device(&i)))
 		if (match(child, data) && get_device(child))
 			break;
@@ -1578,9 +1588,10 @@ int device_move(struct device *dev, struct device *new_parent)
 	old_parent = dev->parent;
 	dev->parent = new_parent;
 	if (old_parent)
-		klist_remove(&dev->knode_parent);
+		klist_remove(&dev->p->knode_parent);
 	if (new_parent) {
-		klist_add_tail(&dev->knode_parent, &new_parent->klist_children);
+		klist_add_tail(&dev->p->knode_parent,
+			       &new_parent->p->klist_children);
 		set_dev_node(dev, dev_to_node(new_parent));
 	}
 
@@ -1592,11 +1603,11 @@ int device_move(struct device *dev, struct device *new_parent)
 		device_move_class_links(dev, new_parent, old_parent);
 		if (!kobject_move(&dev->kobj, &old_parent->kobj)) {
 			if (new_parent)
-				klist_remove(&dev->knode_parent);
+				klist_remove(&dev->p->knode_parent);
 			dev->parent = old_parent;
 			if (old_parent) {
-				klist_add_tail(&dev->knode_parent,
-					       &old_parent->klist_children);
+				klist_add_tail(&dev->p->knode_parent,
+					       &old_parent->p->klist_children);
 				set_dev_node(dev, dev_to_node(old_parent));
 			}
 		}
diff --git a/include/linux/device.h b/include/linux/device.h
index 4cf063fea2a9..808d808ec696 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -368,8 +368,6 @@ struct device_dma_parameters {
 };
 
 struct device {
-	struct klist		klist_children;
-	struct klist_node	knode_parent;	/* node in sibling list */
 	struct klist_node	knode_driver;
 	struct klist_node	knode_bus;
 	struct device		*parent;
-- 
cgit v1.2.3


From 8940b4f312dced51b45004819b776ec3aa7fcd5d Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 16 Dec 2008 12:25:49 -0800
Subject: driver core: move knode_driver into private structure

Nothing outside of the driver core should ever touch knode_driver, so
move it out of the public eye.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/base.h    |  4 ++++
 drivers/base/dd.c      | 13 ++++++++-----
 drivers/base/driver.c  | 13 ++++++++++---
 include/linux/device.h |  1 -
 4 files changed, 22 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/drivers/base/base.h b/drivers/base/base.h
index 7c4fafc314c4..4fc5fd3984cc 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -68,6 +68,7 @@ struct class_private {
  *
  * @klist_children - klist containing all children of this device
  * @knode_parent - node in sibling list
+ * @knode_driver - node in driver list
  * @device - pointer back to the struct class that this structure is
  * associated with.
  *
@@ -76,10 +77,13 @@ struct class_private {
 struct device_private {
 	struct klist klist_children;
 	struct klist_node knode_parent;
+	struct klist_node knode_driver;
 	struct device *device;
 };
 #define to_device_private_parent(obj)	\
 	container_of(obj, struct device_private, knode_parent)
+#define to_device_private_driver(obj)	\
+	container_of(obj, struct device_private, knode_driver)
 
 /* initialisation functions */
 extern int devices_init(void);
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 0dfd08c15921..f17c3266a0e0 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -30,7 +30,7 @@
 
 static void driver_bound(struct device *dev)
 {
-	if (klist_node_attached(&dev->knode_driver)) {
+	if (klist_node_attached(&dev->p->knode_driver)) {
 		printk(KERN_WARNING "%s: device %s already bound\n",
 			__func__, kobject_name(&dev->kobj));
 		return;
@@ -43,7 +43,7 @@ static void driver_bound(struct device *dev)
 		blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
 					     BUS_NOTIFY_BOUND_DRIVER, dev);
 
-	klist_add_tail(&dev->knode_driver, &dev->driver->p->klist_devices);
+	klist_add_tail(&dev->p->knode_driver, &dev->driver->p->klist_devices);
 }
 
 static int driver_sysfs_add(struct device *dev)
@@ -318,7 +318,7 @@ static void __device_release_driver(struct device *dev)
 			drv->remove(dev);
 		devres_release_all(dev);
 		dev->driver = NULL;
-		klist_remove(&dev->knode_driver);
+		klist_remove(&dev->p->knode_driver);
 	}
 }
 
@@ -348,6 +348,7 @@ EXPORT_SYMBOL_GPL(device_release_driver);
  */
 void driver_detach(struct device_driver *drv)
 {
+	struct device_private *dev_prv;
 	struct device *dev;
 
 	for (;;) {
@@ -356,8 +357,10 @@ void driver_detach(struct device_driver *drv)
 			spin_unlock(&drv->p->klist_devices.k_lock);
 			break;
 		}
-		dev = list_entry(drv->p->klist_devices.k_list.prev,
-				struct device, knode_driver.n_node);
+		dev_prv = list_entry(drv->p->klist_devices.k_list.prev,
+				     struct device_private,
+				     knode_driver.n_node);
+		dev = dev_prv->device;
 		get_device(dev);
 		spin_unlock(&drv->p->klist_devices.k_lock);
 
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 2889ad57e48b..c51f11bb29ae 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -19,7 +19,14 @@
 static struct device *next_device(struct klist_iter *i)
 {
 	struct klist_node *n = klist_next(i);
-	return n ? container_of(n, struct device, knode_driver) : NULL;
+	struct device *dev = NULL;
+	struct device_private *dev_prv;
+
+	if (n) {
+		dev_prv = to_device_private_driver(n);
+		dev = dev_prv->device;
+	}
+	return dev;
 }
 
 /**
@@ -42,7 +49,7 @@ int driver_for_each_device(struct device_driver *drv, struct device *start,
 		return -EINVAL;
 
 	klist_iter_init_node(&drv->p->klist_devices, &i,
-			     start ? &start->knode_driver : NULL);
+			     start ? &start->p->knode_driver : NULL);
 	while ((dev = next_device(&i)) && !error)
 		error = fn(dev, data);
 	klist_iter_exit(&i);
@@ -76,7 +83,7 @@ struct device *driver_find_device(struct device_driver *drv,
 		return NULL;
 
 	klist_iter_init_node(&drv->p->klist_devices, &i,
-			     (start ? &start->knode_driver : NULL));
+			     (start ? &start->p->knode_driver : NULL));
 	while ((dev = next_device(&i)))
 		if (match(dev, data) && get_device(dev))
 			break;
diff --git a/include/linux/device.h b/include/linux/device.h
index 808d808ec696..83e241f407be 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -368,7 +368,6 @@ struct device_dma_parameters {
 };
 
 struct device {
-	struct klist_node	knode_driver;
 	struct klist_node	knode_bus;
 	struct device		*parent;
 
-- 
cgit v1.2.3


From ae1b41715ee2aae356fbcca032838b71d70b855f Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 16 Dec 2008 12:26:21 -0800
Subject: driver core: move knode_bus into private structure

Nothing outside of the driver core should ever touch knode_bus, so
move it out of the public eye.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/base.h    |  4 ++++
 drivers/base/bus.c     | 40 +++++++++++++++++++++++++++-------------
 include/linux/device.h |  1 -
 3 files changed, 31 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/drivers/base/base.h b/drivers/base/base.h
index 4fc5fd3984cc..ddc97496db4a 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -69,6 +69,7 @@ struct class_private {
  * @klist_children - klist containing all children of this device
  * @knode_parent - node in sibling list
  * @knode_driver - node in driver list
+ * @knode_bus - node in bus list
  * @device - pointer back to the struct class that this structure is
  * associated with.
  *
@@ -78,12 +79,15 @@ struct device_private {
 	struct klist klist_children;
 	struct klist_node knode_parent;
 	struct klist_node knode_driver;
+	struct klist_node knode_bus;
 	struct device *device;
 };
 #define to_device_private_parent(obj)	\
 	container_of(obj, struct device_private, knode_parent)
 #define to_device_private_driver(obj)	\
 	container_of(obj, struct device_private, knode_driver)
+#define to_device_private_bus(obj)	\
+	container_of(obj, struct device_private, knode_bus)
 
 /* initialisation functions */
 extern int devices_init(void);
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 11463c00451e..dc030f1f00f1 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -253,7 +253,14 @@ static ssize_t store_drivers_probe(struct bus_type *bus,
 static struct device *next_device(struct klist_iter *i)
 {
 	struct klist_node *n = klist_next(i);
-	return n ? container_of(n, struct device, knode_bus) : NULL;
+	struct device *dev = NULL;
+	struct device_private *dev_prv;
+
+	if (n) {
+		dev_prv = to_device_private_bus(n);
+		dev = dev_prv->device;
+	}
+	return dev;
 }
 
 /**
@@ -286,7 +293,7 @@ int bus_for_each_dev(struct bus_type *bus, struct device *start,
 		return -EINVAL;
 
 	klist_iter_init_node(&bus->p->klist_devices, &i,
-			     (start ? &start->knode_bus : NULL));
+			     (start ? &start->p->knode_bus : NULL));
 	while ((dev = next_device(&i)) && !error)
 		error = fn(dev, data);
 	klist_iter_exit(&i);
@@ -320,7 +327,7 @@ struct device *bus_find_device(struct bus_type *bus,
 		return NULL;
 
 	klist_iter_init_node(&bus->p->klist_devices, &i,
-			     (start ? &start->knode_bus : NULL));
+			     (start ? &start->p->knode_bus : NULL));
 	while ((dev = next_device(&i)))
 		if (match(dev, data) && get_device(dev))
 			break;
@@ -507,7 +514,8 @@ void bus_attach_device(struct device *dev)
 			ret = device_attach(dev);
 		WARN_ON(ret < 0);
 		if (ret >= 0)
-			klist_add_tail(&dev->knode_bus, &bus->p->klist_devices);
+			klist_add_tail(&dev->p->knode_bus,
+				       &bus->p->klist_devices);
 	}
 }
 
@@ -528,8 +536,8 @@ void bus_remove_device(struct device *dev)
 		sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
 				  dev_name(dev));
 		device_remove_attrs(dev->bus, dev);
-		if (klist_node_attached(&dev->knode_bus))
-			klist_del(&dev->knode_bus);
+		if (klist_node_attached(&dev->p->knode_bus))
+			klist_del(&dev->p->knode_bus);
 
 		pr_debug("bus: '%s': remove device %s\n",
 			 dev->bus->name, dev_name(dev));
@@ -831,14 +839,16 @@ static void bus_remove_attrs(struct bus_type *bus)
 
 static void klist_devices_get(struct klist_node *n)
 {
-	struct device *dev = container_of(n, struct device, knode_bus);
+	struct device_private *dev_prv = to_device_private_bus(n);
+	struct device *dev = dev_prv->device;
 
 	get_device(dev);
 }
 
 static void klist_devices_put(struct klist_node *n)
 {
-	struct device *dev = container_of(n, struct device, knode_bus);
+	struct device_private *dev_prv = to_device_private_bus(n);
+	struct device *dev = dev_prv->device;
 
 	put_device(dev);
 }
@@ -995,18 +1005,20 @@ static void device_insertion_sort_klist(struct device *a, struct list_head *list
 {
 	struct list_head *pos;
 	struct klist_node *n;
+	struct device_private *dev_prv;
 	struct device *b;
 
 	list_for_each(pos, list) {
 		n = container_of(pos, struct klist_node, n_node);
-		b = container_of(n, struct device, knode_bus);
+		dev_prv = to_device_private_bus(n);
+		b = dev_prv->device;
 		if (compare(a, b) <= 0) {
-			list_move_tail(&a->knode_bus.n_node,
-				       &b->knode_bus.n_node);
+			list_move_tail(&a->p->knode_bus.n_node,
+				       &b->p->knode_bus.n_node);
 			return;
 		}
 	}
-	list_move_tail(&a->knode_bus.n_node, list);
+	list_move_tail(&a->p->knode_bus.n_node, list);
 }
 
 void bus_sort_breadthfirst(struct bus_type *bus,
@@ -1016,6 +1028,7 @@ void bus_sort_breadthfirst(struct bus_type *bus,
 	LIST_HEAD(sorted_devices);
 	struct list_head *pos, *tmp;
 	struct klist_node *n;
+	struct device_private *dev_prv;
 	struct device *dev;
 	struct klist *device_klist;
 
@@ -1024,7 +1037,8 @@ void bus_sort_breadthfirst(struct bus_type *bus,
 	spin_lock(&device_klist->k_lock);
 	list_for_each_safe(pos, tmp, &device_klist->k_list) {
 		n = container_of(pos, struct klist_node, n_node);
-		dev = container_of(n, struct device, knode_bus);
+		dev_prv = to_device_private_bus(n);
+		dev = dev_prv->device;
 		device_insertion_sort_klist(dev, &sorted_devices, compare);
 	}
 	list_splice(&sorted_devices, &device_klist->k_list);
diff --git a/include/linux/device.h b/include/linux/device.h
index 83e241f407be..5a64775e68e4 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -368,7 +368,6 @@ struct device_dma_parameters {
 };
 
 struct device {
-	struct klist_node	knode_bus;
 	struct device		*parent;
 
 	struct device_private	*p;
-- 
cgit v1.2.3


From 006f4571a15fae3a0575f2a0f9e9b63b3d1012f8 Mon Sep 17 00:00:00 2001
From: Ming Lei <tom.leiming@gmail.com>
Date: Sun, 8 Mar 2009 23:13:32 +0800
Subject: driver core: move platform_data into platform_device

This patch moves platform_data from struct device into
struct platform_device, based on the two ideas:

1. Now all platform_driver is registered by platform_driver_register,
   which makes probe()/release()/... of platform_driver passed parameter
   of platform_device *, so platform driver can get platform_data from
   platform_device;

2. Other kind of devices do not need to use platform_data, we can
   decrease size of device if moving it to platform_device.

Taking into consideration of thousands of files to be fixed and they
can't be finished in one night(maybe it will take a long time), so we
keep platform_data in device to allow two kind of cases coexist until
all platform devices pass its platfrom data from
platform_device->platform_data.

All patches to do this kind of conversion are welcome.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/platform.c         | 3 +++
 include/linux/device.h          | 9 +++++++--
 include/linux/platform_device.h | 1 +
 3 files changed, 11 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index ec993aa6a2ca..c5ac81d22303 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -217,6 +217,7 @@ int platform_device_add_data(struct platform_device *pdev, const void *data,
 	if (d) {
 		memcpy(d, data, size);
 		pdev->dev.platform_data = d;
+		pdev->platform_data = d;
 	}
 	return d ? 0 : -ENOMEM;
 }
@@ -246,6 +247,8 @@ int platform_device_add(struct platform_device *pdev)
 	else
 		dev_set_name(&pdev->dev, pdev->name);
 
+	pdev->platform_data = pdev->dev.platform_data;
+
 	for (i = 0; i < pdev->num_resources; i++) {
 		struct resource *p, *r = &pdev->resource[i];
 
diff --git a/include/linux/device.h b/include/linux/device.h
index 5a64775e68e4..4bea53fe8f4c 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -385,8 +385,13 @@ struct device {
 	struct device_driver *driver;	/* which driver has allocated this
 					   device */
 	void		*driver_data;	/* data private to the driver */
-	void		*platform_data;	/* Platform specific data, device
-					   core doesn't touch it */
+
+	void		*platform_data;	/* We will remove platform_data
+					   field if all platform devices
+					   pass its platform specific data
+					   from platform_device->platform_data,
+					   other kind of devices should not
+					   use platform_data. */
 	struct dev_pm_info	power;
 
 #ifdef CONFIG_NUMA
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 76aef7be32ab..76e470a299bf 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -20,6 +20,7 @@ struct platform_device {
 	struct device	dev;
 	u32		num_resources;
 	struct resource	* resource;
+	void		*platform_data;
 
 	struct platform_device_id	*id_entry;
 };
-- 
cgit v1.2.3


From 4995f8ef9d3aac72745e12419d7fbaa8d01b1d81 Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay.sievers@vrfy.org>
Date: Mon, 9 Mar 2009 14:18:52 +0100
Subject: vcs: hook sysfs devices into object lifetime instead of "binding"

During bootup performance tracing I noticed many occurrences of
vca* device creation and removal, leading to the usual userspace
uevent processing, which are, in this case, rather pointless.

A simple test showing the kernel timing (not including all the
work userspace has to do), gives us these numbers:
  $ time for i in `seq 1000`; do echo a > /dev/tty2; done
  real    0m1.142s
  user    0m0.015s
  sys     0m0.540s

If we move the hook for the vcs* driver core devices from the
tty "binding" to the vc allocation/deallocation, which is what
the vcs* devices represent, we get the following numbers:
  $ time for i in `seq 1000`; do echo a > /dev/tty2; done
  real    0m0.152s
  user    0m0.030s
  sys     0m0.072s

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/char/vc_screen.c | 16 ++++++++--------
 drivers/char/vt.c        |  5 +++--
 include/linux/console.h  |  4 ++--
 3 files changed, 13 insertions(+), 12 deletions(-)

(limited to 'include')

diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index 4f3b3f95fc42..d94d25c12aa8 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -479,18 +479,18 @@ static const struct file_operations vcs_fops = {
 
 static struct class *vc_class;
 
-void vcs_make_sysfs(struct tty_struct *tty)
+void vcs_make_sysfs(int index)
 {
-	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), NULL,
-		      "vcs%u", tty->index + 1);
-	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), NULL,
-		      "vcsa%u", tty->index + 1);
+	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 1), NULL,
+		      "vcs%u", index + 1);
+	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 129), NULL,
+		      "vcsa%u", index + 1);
 }
 
-void vcs_remove_sysfs(struct tty_struct *tty)
+void vcs_remove_sysfs(int index)
 {
-	device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1));
-	device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129));
+	device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 1));
+	device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 129));
 }
 
 int __init vcs_init(void)
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 7900bd63b36d..2c1d133819b5 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -778,6 +778,7 @@ int vc_allocate(unsigned int currcons)	/* return 0 on success */
 	    }
 	    vc->vc_kmalloced = 1;
 	    vc_init(vc, vc->vc_rows, vc->vc_cols, 1);
+	    vcs_make_sysfs(currcons);
 	    atomic_notifier_call_chain(&vt_notifier_list, VT_ALLOCATE, &param);
 	}
 	return 0;
@@ -987,7 +988,9 @@ void vc_deallocate(unsigned int currcons)
 	if (vc_cons_allocated(currcons)) {
 		struct vc_data *vc = vc_cons[currcons].d;
 		struct vt_notifier_param param = { .vc = vc };
+
 		atomic_notifier_call_chain(&vt_notifier_list, VT_DEALLOCATE, &param);
+		vcs_remove_sysfs(currcons);
 		vc->vc_sw->con_deinit(vc);
 		put_pid(vc->vt_pid);
 		module_put(vc->vc_sw->owner);
@@ -2775,7 +2778,6 @@ static int con_open(struct tty_struct *tty, struct file *filp)
 				tty->termios->c_iflag |= IUTF8;
 			else
 				tty->termios->c_iflag &= ~IUTF8;
-			vcs_make_sysfs(tty);
 			release_console_sem();
 			return ret;
 		}
@@ -2795,7 +2797,6 @@ static void con_shutdown(struct tty_struct *tty)
 	BUG_ON(vc == NULL);
 	acquire_console_sem();
 	vc->vc_tty = NULL;
-	vcs_remove_sysfs(tty);
 	release_console_sem();
 	tty_shutdown(tty);
 }
diff --git a/include/linux/console.h b/include/linux/console.h
index a67a90cf8268..dcca5339ceb3 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -137,8 +137,8 @@ extern void resume_console(void);
 int mda_console_init(void);
 void prom_con_init(void);
 
-void vcs_make_sysfs(struct tty_struct *tty);
-void vcs_remove_sysfs(struct tty_struct *tty);
+void vcs_make_sysfs(int index);
+void vcs_remove_sysfs(int index);
 
 /* Some debug stub to catch some of the obvious races in the VT code */
 #if 1
-- 
cgit v1.2.3


From f67f129e519fa87f8ebd236b6336fe43f31ee141 Mon Sep 17 00:00:00 2001
From: Ming Lei <tom.leiming@gmail.com>
Date: Sun, 1 Mar 2009 21:10:49 +0800
Subject: Driver core: implement uevent suppress in kobject

This patch implements uevent suppress in kobject and removes it
from struct device, based on the following ideas:

1,Uevent sending should be one attribute of kobject, so suppressing it
in kobject layer is more natural than in device layer. By this way,
we can do it for other objects embedded with kobject.

2,It may save several bytes for each instance of struct device.(On my
omap3(32bit ARM) based box, can save 8bytes per device object)

This patch also introduces dev_set|get_uevent_suppress() helpers to
set and query uevent_suppress attribute in case to help kobject
as private part of struct device in future.

[This version is against the latest driver-core patch set of Greg,please
ignore the last version.]

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/acpi/dock.c           |  2 +-
 drivers/base/core.c           |  2 --
 drivers/base/firmware_class.c |  4 ++--
 drivers/i2c/i2c-core.c        |  2 +-
 drivers/s390/cio/chsc_sch.c   |  4 ++--
 drivers/s390/cio/css.c        |  4 ++--
 drivers/s390/cio/device.c     |  4 ++--
 fs/partitions/check.c         | 10 +++++-----
 include/linux/device.h        | 11 ++++++++++-
 include/linux/kobject.h       |  1 +
 lib/kobject_uevent.c          |  7 +++++++
 11 files changed, 33 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 35094f230b1e..7af7db1ba8c4 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -977,7 +977,7 @@ static int dock_add(acpi_handle handle)
 		sizeof(struct dock_station *));
 
 	/* we want the dock device to send uevents */
-	dock_device->dev.uevent_suppress = 0;
+	dev_set_uevent_suppress(&dock_device->dev, 0);
 
 	if (is_dock(handle))
 		dock_station->flags |= DOCK_IS_DOCK;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index a90f56f64d6f..95c67ffd71da 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -136,8 +136,6 @@ static int dev_uevent_filter(struct kset *kset, struct kobject *kobj)
 
 	if (ktype == &device_ktype) {
 		struct device *dev = to_dev(kobj);
-		if (dev->uevent_suppress)
-			return 0;
 		if (dev->bus)
 			return 1;
 		if (dev->class)
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 44699d9dd85c..d3a59c688fe4 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -319,7 +319,7 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
 	f_dev->parent = device;
 	f_dev->class = &firmware_class;
 	dev_set_drvdata(f_dev, fw_priv);
-	f_dev->uevent_suppress = 1;
+	dev_set_uevent_suppress(f_dev, 1);
 	retval = device_register(f_dev);
 	if (retval) {
 		dev_err(device, "%s: device_register failed\n", __func__);
@@ -366,7 +366,7 @@ static int fw_setup_device(struct firmware *fw, struct device **dev_p,
 	}
 
 	if (uevent)
-		f_dev->uevent_suppress = 0;
+		dev_set_uevent_suppress(f_dev, 0);
 	*dev_p = f_dev;
 	goto out;
 
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index e7d984866de0..fbb9030b68a5 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -841,7 +841,7 @@ int i2c_attach_client(struct i2c_client *client)
 
 	if (client->driver && !is_newstyle_driver(client->driver)) {
 		client->dev.release = i2c_client_release;
-		client->dev.uevent_suppress = 1;
+		dev_set_uevent_suppress(&client->dev, 1);
 	} else
 		client->dev.release = i2c_client_dev_release;
 
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 0a2f2edafc03..93eca1731b81 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -84,8 +84,8 @@ static int chsc_subchannel_probe(struct subchannel *sch)
 		kfree(private);
 	} else {
 		sch->private = private;
-		if (sch->dev.uevent_suppress) {
-			sch->dev.uevent_suppress = 0;
+		if (dev_get_uevent_suppress(&sch->dev)) {
+			dev_set_uevent_suppress(&sch->dev, 0);
 			kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
 		}
 	}
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 8019288bc6de..427d11d88069 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -272,7 +272,7 @@ static int css_register_subchannel(struct subchannel *sch)
 	 * the subchannel driver can decide itself when it wants to inform
 	 * userspace of its existence.
 	 */
-	sch->dev.uevent_suppress = 1;
+	dev_set_uevent_suppress(&sch->dev, 1);
 	css_update_ssd_info(sch);
 	/* make it known to the system */
 	ret = css_sch_device_register(sch);
@@ -287,7 +287,7 @@ static int css_register_subchannel(struct subchannel *sch)
 		 * a fitting driver module may be loaded based on the
 		 * modalias.
 		 */
-		sch->dev.uevent_suppress = 0;
+		dev_set_uevent_suppress(&sch->dev, 0);
 		kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
 	}
 	return ret;
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 23d5752349b5..611d2e001dd5 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -981,7 +981,7 @@ io_subchannel_register(struct work_struct *work)
 	 * Now we know this subchannel will stay, we can throw
 	 * our delayed uevent.
 	 */
-	sch->dev.uevent_suppress = 0;
+	dev_set_uevent_suppress(&sch->dev, 0);
 	kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
 	/* make it known to the system */
 	ret = ccw_device_register(cdev);
@@ -1243,7 +1243,7 @@ static int io_subchannel_probe(struct subchannel *sch)
 		 * the ccw_device and exit. This happens for all early
 		 * devices, e.g. the console.
 		 */
-		sch->dev.uevent_suppress = 0;
+		dev_set_uevent_suppress(&sch->dev, 0);
 		kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
 		cdev->dev.groups = ccwdev_attr_groups;
 		device_initialize(&cdev->dev);
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 6d720243f5f4..38e337d51ced 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -400,7 +400,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
 	pdev->devt = devt;
 
 	/* delay uevent until 'holders' subdir is created */
-	pdev->uevent_suppress = 1;
+	dev_set_uevent_suppress(pdev, 1);
 	err = device_add(pdev);
 	if (err)
 		goto out_put;
@@ -410,7 +410,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
 	if (!p->holder_dir)
 		goto out_del;
 
-	pdev->uevent_suppress = 0;
+	dev_set_uevent_suppress(pdev, 0);
 	if (flags & ADDPART_FLAG_WHOLEDISK) {
 		err = device_create_file(pdev, &dev_attr_whole_disk);
 		if (err)
@@ -422,7 +422,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
 	rcu_assign_pointer(ptbl->part[partno], p);
 
 	/* suppress uevent if the disk supresses it */
-	if (!ddev->uevent_suppress)
+	if (!dev_get_uevent_suppress(pdev))
 		kobject_uevent(&pdev->kobj, KOBJ_ADD);
 
 	return p;
@@ -455,7 +455,7 @@ void register_disk(struct gendisk *disk)
 	dev_set_name(ddev, disk->disk_name);
 
 	/* delay uevents, until we scanned partition table */
-	ddev->uevent_suppress = 1;
+	dev_set_uevent_suppress(ddev, 1);
 
 	if (device_add(ddev))
 		return;
@@ -490,7 +490,7 @@ void register_disk(struct gendisk *disk)
 
 exit:
 	/* announce disk after possible partitions are created */
-	ddev->uevent_suppress = 0;
+	dev_set_uevent_suppress(ddev, 0);
 	kobject_uevent(&ddev->kobj, KOBJ_ADD);
 
 	/* announce possible partitions */
diff --git a/include/linux/device.h b/include/linux/device.h
index 4bea53fe8f4c..914c1016dd8f 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -373,7 +373,6 @@ struct device {
 	struct device_private	*p;
 
 	struct kobject kobj;
-	unsigned		uevent_suppress:1;
 	const char		*init_name; /* initial name of the device */
 	struct device_type	*type;
 
@@ -465,6 +464,16 @@ static inline void dev_set_drvdata(struct device *dev, void *data)
 	dev->driver_data = data;
 }
 
+static inline unsigned int dev_get_uevent_suppress(const struct device *dev)
+{
+	return dev->kobj.uevent_suppress;
+}
+
+static inline void dev_set_uevent_suppress(struct device *dev, int val)
+{
+	dev->kobj.uevent_suppress = val;
+}
+
 static inline int device_is_registered(struct device *dev)
 {
 	return dev->kobj.state_in_sysfs;
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index c9c214d7bba2..58ae8e00fcdd 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -68,6 +68,7 @@ struct kobject {
 	unsigned int state_in_sysfs:1;
 	unsigned int state_add_uevent_sent:1;
 	unsigned int state_remove_uevent_sent:1;
+	unsigned int uevent_suppress:1;
 };
 
 extern int kobject_set_name(struct kobject *kobj, const char *name, ...)
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 318328ddbd1c..b2181cc8e4d8 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -118,6 +118,13 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 	kset = top_kobj->kset;
 	uevent_ops = kset->uevent_ops;
 
+	/* skip the event, if uevent_suppress is set*/
+	if (kobj->uevent_suppress) {
+		pr_debug("kobject: '%s' (%p): %s: uevent_suppress "
+				 "caused the event to drop!\n",
+				 kobject_name(kobj), kobj, __func__);
+		return 0;
+	}
 	/* skip the event, if the filter returns zero. */
 	if (uevent_ops && uevent_ops->filter)
 		if (!uevent_ops->filter(kset, kobj)) {
-- 
cgit v1.2.3


From ffa6a7054d172a2f57248dff2de600ca795c5656 Mon Sep 17 00:00:00 2001
From: Cornelia Huck <cornelia.huck@de.ibm.com>
Date: Wed, 4 Mar 2009 12:44:00 +0100
Subject: Driver core: Fix device_move() vs. dpm list ordering, v2

dpm_list currently relies on the fact that child devices will
be registered after their parents to get a correct suspend
order. Using device_move() however destroys this assumption, as
an already registered device may be moved under a newly registered
one.

This patch adds a new argument to device_move(), allowing callers
to specify how dpm_list should be adapted.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/base/core.c        | 19 ++++++++++++++++++-
 drivers/base/power/main.c  | 44 ++++++++++++++++++++++++++++++++++++++++++++
 drivers/base/power/power.h |  8 ++++++++
 drivers/s390/cio/device.c  |  9 +++++----
 include/linux/device.h     |  3 ++-
 include/linux/pm.h         | 11 +++++++++++
 net/bluetooth/hci_sysfs.c  |  2 +-
 net/bluetooth/rfcomm/tty.c |  5 +++--
 8 files changed, 92 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 95c67ffd71da..e73c92d13a23 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1561,8 +1561,10 @@ out:
  * device_move - moves a device to a new parent
  * @dev: the pointer to the struct device to be moved
  * @new_parent: the new parent of the device (can by NULL)
+ * @dpm_order: how to reorder the dpm_list
  */
-int device_move(struct device *dev, struct device *new_parent)
+int device_move(struct device *dev, struct device *new_parent,
+		enum dpm_order dpm_order)
 {
 	int error;
 	struct device *old_parent;
@@ -1572,6 +1574,7 @@ int device_move(struct device *dev, struct device *new_parent)
 	if (!dev)
 		return -EINVAL;
 
+	device_pm_lock();
 	new_parent = get_device(new_parent);
 	new_parent_kobj = get_device_parent(dev, new_parent);
 
@@ -1613,9 +1616,23 @@ int device_move(struct device *dev, struct device *new_parent)
 		put_device(new_parent);
 		goto out;
 	}
+	switch (dpm_order) {
+	case DPM_ORDER_NONE:
+		break;
+	case DPM_ORDER_DEV_AFTER_PARENT:
+		device_pm_move_after(dev, new_parent);
+		break;
+	case DPM_ORDER_PARENT_BEFORE_DEV:
+		device_pm_move_before(new_parent, dev);
+		break;
+	case DPM_ORDER_DEV_LAST:
+		device_pm_move_last(dev);
+		break;
+	}
 out_put:
 	put_device(old_parent);
 out:
+	device_pm_unlock();
 	put_device(dev);
 	return error;
 }
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 2d14f4ae6c01..e255341682c8 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -106,6 +106,50 @@ void device_pm_remove(struct device *dev)
 	mutex_unlock(&dpm_list_mtx);
 }
 
+/**
+ *	device_pm_move_before - move device in dpm_list
+ *	@deva:  Device to move in dpm_list
+ *	@devb:  Device @deva should come before
+ */
+void device_pm_move_before(struct device *deva, struct device *devb)
+{
+	pr_debug("PM: Moving %s:%s before %s:%s\n",
+		 deva->bus ? deva->bus->name : "No Bus",
+		 kobject_name(&deva->kobj),
+		 devb->bus ? devb->bus->name : "No Bus",
+		 kobject_name(&devb->kobj));
+	/* Delete deva from dpm_list and reinsert before devb. */
+	list_move_tail(&deva->power.entry, &devb->power.entry);
+}
+
+/**
+ *	device_pm_move_after - move device in dpm_list
+ *	@deva:  Device to move in dpm_list
+ *	@devb:  Device @deva should come after
+ */
+void device_pm_move_after(struct device *deva, struct device *devb)
+{
+	pr_debug("PM: Moving %s:%s after %s:%s\n",
+		 deva->bus ? deva->bus->name : "No Bus",
+		 kobject_name(&deva->kobj),
+		 devb->bus ? devb->bus->name : "No Bus",
+		 kobject_name(&devb->kobj));
+	/* Delete deva from dpm_list and reinsert after devb. */
+	list_move(&deva->power.entry, &devb->power.entry);
+}
+
+/**
+ * 	device_pm_move_last - move device to end of dpm_list
+ * 	@dev:   Device to move in dpm_list
+ */
+void device_pm_move_last(struct device *dev)
+{
+	pr_debug("PM: Moving %s:%s to end of list\n",
+		 dev->bus ? dev->bus->name : "No Bus",
+		 kobject_name(&dev->kobj));
+	list_move_tail(&dev->power.entry, &dpm_list);
+}
+
 /**
  *	pm_op - execute the PM operation appropiate for given PM event
  *	@dev:	Device.
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index 41f51fae042f..c7cb4fc3735c 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -18,11 +18,19 @@ static inline struct device *to_device(struct list_head *entry)
 
 extern void device_pm_add(struct device *);
 extern void device_pm_remove(struct device *);
+extern void device_pm_move_before(struct device *, struct device *);
+extern void device_pm_move_after(struct device *, struct device *);
+extern void device_pm_move_last(struct device *);
 
 #else /* CONFIG_PM_SLEEP */
 
 static inline void device_pm_add(struct device *dev) {}
 static inline void device_pm_remove(struct device *dev) {}
+static inline void device_pm_move_before(struct device *deva,
+					 struct device *devb) {}
+static inline void device_pm_move_after(struct device *deva,
+					struct device *devb) {}
+static inline void device_pm_move_last(struct device *dev) {}
 
 #endif
 
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 611d2e001dd5..e28f8ae53453 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -799,7 +799,7 @@ static void sch_attach_disconnected_device(struct subchannel *sch,
 		return;
 	other_sch = to_subchannel(cdev->dev.parent);
 	/* Note: device_move() changes cdev->dev.parent */
-	ret = device_move(&cdev->dev, &sch->dev);
+	ret = device_move(&cdev->dev, &sch->dev, DPM_ORDER_PARENT_BEFORE_DEV);
 	if (ret) {
 		CIO_MSG_EVENT(0, "Moving disconnected device 0.%x.%04x failed "
 			      "(ret=%d)!\n", cdev->private->dev_id.ssid,
@@ -830,7 +830,7 @@ static void sch_attach_orphaned_device(struct subchannel *sch,
 	 * Try to move the ccw device to its new subchannel.
 	 * Note: device_move() changes cdev->dev.parent
 	 */
-	ret = device_move(&cdev->dev, &sch->dev);
+	ret = device_move(&cdev->dev, &sch->dev, DPM_ORDER_PARENT_BEFORE_DEV);
 	if (ret) {
 		CIO_MSG_EVENT(0, "Moving device 0.%x.%04x from orphanage "
 			      "failed (ret=%d)!\n",
@@ -897,7 +897,8 @@ void ccw_device_move_to_orphanage(struct work_struct *work)
 	 * ccw device can take its place on the subchannel.
 	 * Note: device_move() changes cdev->dev.parent
 	 */
-	ret = device_move(&cdev->dev, &css->pseudo_subchannel->dev);
+	ret = device_move(&cdev->dev, &css->pseudo_subchannel->dev,
+		DPM_ORDER_NONE);
 	if (ret) {
 		CIO_MSG_EVENT(0, "Moving device 0.%x.%04x to orphanage failed "
 			      "(ret=%d)!\n", cdev->private->dev_id.ssid,
@@ -1129,7 +1130,7 @@ static void ccw_device_move_to_sch(struct work_struct *work)
 	 * Try to move the ccw device to its new subchannel.
 	 * Note: device_move() changes cdev->dev.parent
 	 */
-	rc = device_move(&cdev->dev, &sch->dev);
+	rc = device_move(&cdev->dev, &sch->dev, DPM_ORDER_PARENT_BEFORE_DEV);
 	mutex_unlock(&sch->reg_mutex);
 	if (rc) {
 		CIO_MSG_EVENT(0, "Moving device 0.%x.%04x to subchannel "
diff --git a/include/linux/device.h b/include/linux/device.h
index 914c1016dd8f..f98d0cfb4f81 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -494,7 +494,8 @@ extern int device_for_each_child(struct device *dev, void *data,
 extern struct device *device_find_child(struct device *dev, void *data,
 				int (*match)(struct device *dev, void *data));
 extern int device_rename(struct device *dev, char *new_name);
-extern int device_move(struct device *dev, struct device *new_parent);
+extern int device_move(struct device *dev, struct device *new_parent,
+		       enum dpm_order dpm_order);
 
 /*
  * Root device objects for grouping under /sys/devices
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 24ba5f67b3a3..1d4e2d289821 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -400,6 +400,9 @@ extern void __suspend_report_result(const char *function, void *fn, int ret);
 
 #else /* !CONFIG_PM_SLEEP */
 
+#define device_pm_lock() do {} while (0)
+#define device_pm_unlock() do {} while (0)
+
 static inline int device_suspend(pm_message_t state)
 {
 	return 0;
@@ -409,6 +412,14 @@ static inline int device_suspend(pm_message_t state)
 
 #endif /* !CONFIG_PM_SLEEP */
 
+/* How to reorder dpm_list after device_move() */
+enum dpm_order {
+	DPM_ORDER_NONE,
+	DPM_ORDER_DEV_AFTER_PARENT,
+	DPM_ORDER_PARENT_BEFORE_DEV,
+	DPM_ORDER_DEV_LAST,
+};
+
 /*
  * Global Power Management flags
  * Used to keep APM and ACPI from both being active
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 1a1f916be44e..ed82796d4a0f 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -140,7 +140,7 @@ static void del_conn(struct work_struct *work)
 		dev = device_find_child(&conn->dev, NULL, __match_tty);
 		if (!dev)
 			break;
-		device_move(dev, NULL);
+		device_move(dev, NULL, DPM_ORDER_DEV_LAST);
 		put_device(dev);
 	}
 
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index d030c69cb5a3..abdc703a11d2 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -731,7 +731,8 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
 	remove_wait_queue(&dev->wait, &wait);
 
 	if (err == 0)
-		device_move(dev->tty_dev, rfcomm_get_device(dev));
+		device_move(dev->tty_dev, rfcomm_get_device(dev),
+			    DPM_ORDER_DEV_AFTER_PARENT);
 
 	rfcomm_tty_copy_pending(dev);
 
@@ -751,7 +752,7 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
 
 	if (atomic_dec_and_test(&dev->opened)) {
 		if (dev->tty_dev->parent)
-			device_move(dev->tty_dev, NULL);
+			device_move(dev->tty_dev, NULL, DPM_ORDER_DEV_LAST);
 
 		/* Close DLC and dettach TTY */
 		rfcomm_dlc_close(dev->dlc, 0);
-- 
cgit v1.2.3


From e9d376f0fa66bd630fe27403669c6ae6c22a868f Mon Sep 17 00:00:00 2001
From: Jason Baron <jbaron@redhat.com>
Date: Thu, 5 Feb 2009 11:51:38 -0500
Subject: dynamic debug: combine dprintk and dynamic printk

This patch combines Greg Bank's dprintk() work with the existing dynamic
printk patchset, we are now calling it 'dynamic debug'.

The new feature of this patchset is a richer /debugfs control file interface,
(an example output from my system is at the bottom), which allows fined grained
control over the the debug output. The output can be controlled by function,
file, module, format string, and line number.

for example, enabled all debug messages in module 'nf_conntrack':

echo -n 'module nf_conntrack +p' > /mnt/debugfs/dynamic_debug/control

to disable them:

echo -n 'module nf_conntrack -p' > /mnt/debugfs/dynamic_debug/control

A further explanation can be found in the documentation patch.

Signed-off-by: Greg Banks <gnb@sgi.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 Documentation/kernel-parameters.txt |   5 -
 include/asm-generic/vmlinux.lds.h   |  15 +-
 include/linux/device.h              |   2 +-
 include/linux/dynamic_debug.h       |  88 +++++
 include/linux/dynamic_printk.h      |  93 -----
 include/linux/kernel.h              |   4 +-
 kernel/module.c                     |  25 +-
 lib/Kconfig.debug                   |   2 +-
 lib/Makefile                        |   2 +-
 lib/dynamic_debug.c                 | 756 ++++++++++++++++++++++++++++++++++++
 lib/dynamic_printk.c                | 414 --------------------
 net/netfilter/nf_conntrack_pptp.c   |   2 +-
 scripts/Makefile.lib                |   2 +-
 13 files changed, 867 insertions(+), 543 deletions(-)
 create mode 100644 include/linux/dynamic_debug.h
 delete mode 100644 include/linux/dynamic_printk.h
 create mode 100644 lib/dynamic_debug.c
 delete mode 100644 lib/dynamic_printk.c

(limited to 'include')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 54f21a5c262b..3a1aa8a4affc 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1816,11 +1816,6 @@ and is between 256 and 4096 characters. It is defined in the file
 			autoconfiguration.
 			Ranges are in pairs (memory base and size).
 
-	dynamic_printk	Enables pr_debug()/dev_dbg() calls if
-			CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled.
-			These can also be switched on/off via
-			<debugfs>/dynamic_printk/modules
-
 	print-fatal-signals=
 			[KNL] debug: print fatal signals
 			print-fatal-signals=1: print segfault info to
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index c61fab1dd2f8..aca40b93bd28 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -80,6 +80,11 @@
 	VMLINUX_SYMBOL(__start___tracepoints) = .;			\
 	*(__tracepoints)						\
 	VMLINUX_SYMBOL(__stop___tracepoints) = .;			\
+	/* implement dynamic printk debug */				\
+	. = ALIGN(8);							\
+	VMLINUX_SYMBOL(__start___verbose) = .;                          \
+	*(__verbose)                                                    \
+	VMLINUX_SYMBOL(__stop___verbose) = .;				\
 	LIKELY_PROFILE()		       				\
 	BRANCH_PROFILE()
 
@@ -309,15 +314,7 @@
 	CPU_DISCARD(init.data)						\
 	CPU_DISCARD(init.rodata)					\
 	MEM_DISCARD(init.data)						\
-	MEM_DISCARD(init.rodata)					\
-	/* implement dynamic printk debug */				\
-	VMLINUX_SYMBOL(__start___verbose_strings) = .;                  \
-	*(__verbose_strings)                                            \
-	VMLINUX_SYMBOL(__stop___verbose_strings) = .;                   \
-	. = ALIGN(8);							\
-	VMLINUX_SYMBOL(__start___verbose) = .;                          \
-	*(__verbose)                                                    \
-	VMLINUX_SYMBOL(__stop___verbose) = .;
+	MEM_DISCARD(init.rodata)
 
 #define INIT_TEXT							\
 	*(.init.text)							\
diff --git a/include/linux/device.h b/include/linux/device.h
index f98d0cfb4f81..2918c0e8fdfd 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -582,7 +582,7 @@ extern const char *dev_driver_string(const struct device *dev);
 #if defined(DEBUG)
 #define dev_dbg(dev, format, arg...)		\
 	dev_printk(KERN_DEBUG , dev , format , ## arg)
-#elif defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#elif defined(CONFIG_DYNAMIC_DEBUG)
 #define dev_dbg(dev, format, ...) do { \
 	dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
 	} while (0)
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
new file mode 100644
index 000000000000..07781aaa1164
--- /dev/null
+++ b/include/linux/dynamic_debug.h
@@ -0,0 +1,88 @@
+#ifndef _DYNAMIC_DEBUG_H
+#define _DYNAMIC_DEBUG_H
+
+/* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which
+ * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They
+ * use independent hash functions, to reduce the chance of false positives.
+ */
+extern long long dynamic_debug_enabled;
+extern long long dynamic_debug_enabled2;
+
+/*
+ * An instance of this structure is created in a special
+ * ELF section at every dynamic debug callsite.  At runtime,
+ * the special section is treated as an array of these.
+ */
+struct _ddebug {
+	/*
+	 * These fields are used to drive the user interface
+	 * for selecting and displaying debug callsites.
+	 */
+	const char *modname;
+	const char *function;
+	const char *filename;
+	const char *format;
+	char primary_hash;
+	char secondary_hash;
+	unsigned int lineno:24;
+	/*
+ 	 * The flags field controls the behaviour at the callsite.
+ 	 * The bits here are changed dynamically when the user
+ 	 * writes commands to <debugfs>/dynamic_debug/ddebug
+	 */
+#define _DPRINTK_FLAGS_PRINT   (1<<0)  /* printk() a message using the format */
+#define _DPRINTK_FLAGS_DEFAULT 0
+	unsigned int flags:8;
+} __attribute__((aligned(8)));
+
+
+int ddebug_add_module(struct _ddebug *tab, unsigned int n,
+				const char *modname);
+
+#if defined(CONFIG_DYNAMIC_DEBUG)
+extern int ddebug_remove_module(char *mod_name);
+
+#define __dynamic_dbg_enabled(dd)  ({	     \
+	int __ret = 0;							     \
+	if (unlikely((dynamic_debug_enabled & (1LL << DEBUG_HASH)) &&	     \
+			(dynamic_debug_enabled2 & (1LL << DEBUG_HASH2))))   \
+				if (unlikely(dd.flags))			     \
+					__ret = 1;			     \
+	__ret; })
+
+#define dynamic_pr_debug(fmt, ...) do {					\
+	static struct _ddebug descriptor				\
+	__used								\
+	__attribute__((section("__verbose"), aligned(8))) =		\
+	{ KBUILD_MODNAME, __func__, __FILE__, fmt, DEBUG_HASH,	\
+		DEBUG_HASH2, __LINE__, _DPRINTK_FLAGS_DEFAULT };	\
+	if (__dynamic_dbg_enabled(descriptor))				\
+		printk(KERN_DEBUG KBUILD_MODNAME ":" fmt,		\
+				##__VA_ARGS__);				\
+	} while (0)
+
+
+#define dynamic_dev_dbg(dev, fmt, ...) do {				\
+	static struct _ddebug descriptor				\
+	__used								\
+	__attribute__((section("__verbose"), aligned(8))) =		\
+	{ KBUILD_MODNAME, __func__, __FILE__, fmt, DEBUG_HASH,	\
+		DEBUG_HASH2, __LINE__, _DPRINTK_FLAGS_DEFAULT };	\
+	if (__dynamic_dbg_enabled(descriptor))				\
+			dev_printk(KERN_DEBUG, dev,			\
+					KBUILD_MODNAME ": " fmt,	\
+					##__VA_ARGS__);			\
+	} while (0)
+
+#else
+
+static inline int ddebug_remove_module(char *mod)
+{
+	return 0;
+}
+
+#define dynamic_pr_debug(fmt, ...)  do { } while (0)
+#define dynamic_dev_dbg(dev, format, ...)  do { } while (0)
+#endif
+
+#endif
diff --git a/include/linux/dynamic_printk.h b/include/linux/dynamic_printk.h
deleted file mode 100644
index 2d528d009074..000000000000
--- a/include/linux/dynamic_printk.h
+++ /dev/null
@@ -1,93 +0,0 @@
-#ifndef _DYNAMIC_PRINTK_H
-#define _DYNAMIC_PRINTK_H
-
-#define DYNAMIC_DEBUG_HASH_BITS 6
-#define DEBUG_HASH_TABLE_SIZE (1 << DYNAMIC_DEBUG_HASH_BITS)
-
-#define TYPE_BOOLEAN 1
-
-#define DYNAMIC_ENABLED_ALL 0
-#define DYNAMIC_ENABLED_NONE 1
-#define DYNAMIC_ENABLED_SOME 2
-
-extern int dynamic_enabled;
-
-/* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which
- * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They
- * use independent hash functions, to reduce the chance of false positives.
- */
-extern long long dynamic_printk_enabled;
-extern long long dynamic_printk_enabled2;
-
-struct mod_debug {
-	char *modname;
-	char *logical_modname;
-	char *flag_names;
-	int type;
-	int hash;
-	int hash2;
-} __attribute__((aligned(8)));
-
-int register_dynamic_debug_module(char *mod_name, int type, char *share_name,
-					char *flags, int hash, int hash2);
-
-#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
-extern int unregister_dynamic_debug_module(char *mod_name);
-extern int __dynamic_dbg_enabled_helper(char *modname, int type,
-					int value, int hash);
-
-#define __dynamic_dbg_enabled(module, type, value, level, hash)  ({	     \
-	int __ret = 0;							     \
-	if (unlikely((dynamic_printk_enabled & (1LL << DEBUG_HASH)) &&	     \
-			(dynamic_printk_enabled2 & (1LL << DEBUG_HASH2))))   \
-			__ret = __dynamic_dbg_enabled_helper(module, type,   \
-								value, hash);\
-	__ret; })
-
-#define dynamic_pr_debug(fmt, ...) do {					    \
-	static char mod_name[]						    \
-	__attribute__((section("__verbose_strings")))			    \
-	 = KBUILD_MODNAME;						    \
-	static struct mod_debug descriptor				    \
-	__used								    \
-	__attribute__((section("__verbose"), aligned(8))) =		    \
-	{ mod_name, mod_name, NULL, TYPE_BOOLEAN, DEBUG_HASH, DEBUG_HASH2 };\
-	if (__dynamic_dbg_enabled(KBUILD_MODNAME, TYPE_BOOLEAN,		    \
-						0, 0, DEBUG_HASH))	    \
-		printk(KERN_DEBUG KBUILD_MODNAME ":" fmt,		    \
-				##__VA_ARGS__);				    \
-	} while (0)
-
-#define dynamic_dev_dbg(dev, format, ...) do {				    \
-	static char mod_name[]						    \
-	__attribute__((section("__verbose_strings")))			    \
-	 = KBUILD_MODNAME;						    \
-	static struct mod_debug descriptor				    \
-	__used								    \
-	__attribute__((section("__verbose"), aligned(8))) =		    \
-	{ mod_name, mod_name, NULL, TYPE_BOOLEAN, DEBUG_HASH, DEBUG_HASH2 };\
-	if (__dynamic_dbg_enabled(KBUILD_MODNAME, TYPE_BOOLEAN,		    \
-						0, 0, DEBUG_HASH))	    \
-			dev_printk(KERN_DEBUG, dev,			    \
-					KBUILD_MODNAME ": " format,	    \
-					##__VA_ARGS__);			    \
-	} while (0)
-
-#else
-
-static inline int unregister_dynamic_debug_module(const char *mod_name)
-{
-	return 0;
-}
-static inline int __dynamic_dbg_enabled_helper(char *modname, int type,
-						int value, int hash)
-{
-	return 0;
-}
-
-#define __dynamic_dbg_enabled(module, type, value, level, hash)  ({ 0; })
-#define dynamic_pr_debug(fmt, ...)  do { } while (0)
-#define dynamic_dev_dbg(dev, format, ...)  do { } while (0)
-#endif
-
-#endif
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 7fa371898e3e..b5496ecbec71 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -16,7 +16,7 @@
 #include <linux/log2.h>
 #include <linux/typecheck.h>
 #include <linux/ratelimit.h>
-#include <linux/dynamic_printk.h>
+#include <linux/dynamic_debug.h>
 #include <asm/byteorder.h>
 #include <asm/bug.h>
 
@@ -358,7 +358,7 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
 #if defined(DEBUG)
 #define pr_debug(fmt, ...) \
 	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
-#elif defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#elif defined(CONFIG_DYNAMIC_DEBUG)
 #define pr_debug(fmt, ...) do { \
 	dynamic_pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \
 	} while (0)
diff --git a/kernel/module.c b/kernel/module.c
index 1196f5d11700..77672233387f 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -822,7 +822,7 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user,
 	mutex_lock(&module_mutex);
 	/* Store the name of the last unloaded module for diagnostic purposes */
 	strlcpy(last_unloaded_module, mod->name, sizeof(last_unloaded_module));
-	unregister_dynamic_debug_module(mod->name);
+	ddebug_remove_module(mod->name);
 	free_module(mod);
 
  out:
@@ -1827,19 +1827,13 @@ static inline void add_kallsyms(struct module *mod,
 }
 #endif /* CONFIG_KALLSYMS */
 
-static void dynamic_printk_setup(struct mod_debug *debug, unsigned int num)
+static void dynamic_debug_setup(struct _ddebug *debug, unsigned int num)
 {
-#ifdef CONFIG_DYNAMIC_PRINTK_DEBUG
-	unsigned int i;
-
-	for (i = 0; i < num; i++) {
-		register_dynamic_debug_module(debug[i].modname,
-					      debug[i].type,
-					      debug[i].logical_modname,
-					      debug[i].flag_names,
-					      debug[i].hash, debug[i].hash2);
-	}
-#endif /* CONFIG_DYNAMIC_PRINTK_DEBUG */
+#ifdef CONFIG_DYNAMIC_DEBUG
+	if (ddebug_add_module(debug, num, debug->modname))
+		printk(KERN_ERR "dynamic debug error adding module: %s\n",
+					debug->modname);
+#endif
 }
 
 static void *module_alloc_update_bounds(unsigned long size)
@@ -2213,12 +2207,13 @@ static noinline struct module *load_module(void __user *umod,
 	add_kallsyms(mod, sechdrs, symindex, strindex, secstrings);
 
 	if (!mod->taints) {
-		struct mod_debug *debug;
+		struct _ddebug *debug;
 		unsigned int num_debug;
 
 		debug = section_objs(hdr, sechdrs, secstrings, "__verbose",
 				     sizeof(*debug), &num_debug);
-		dynamic_printk_setup(debug, num_debug);
+		if (debug)
+			dynamic_debug_setup(debug, num_debug);
 	}
 
 	/* sechdrs[0].sh_size is always zero */
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1bcf9cd4baa0..0dd1c04c7323 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -847,7 +847,7 @@ config BUILD_DOCSRC
 
 	  Say N if you are unsure.
 
-config DYNAMIC_PRINTK_DEBUG
+config DYNAMIC_DEBUG
 	bool "Enable dynamic printk() call support"
 	default n
 	depends on PRINTK
diff --git a/lib/Makefile b/lib/Makefile
index 32b0e64ded27..8633d6be9d21 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -82,7 +82,7 @@ obj-$(CONFIG_HAVE_LMB) += lmb.o
 
 obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
 
-obj-$(CONFIG_DYNAMIC_PRINTK_DEBUG) += dynamic_printk.o
+obj-$(CONFIG_DYNAMIC_DEBUG) += dynamic_debug.o
 
 hostprogs-y	:= gen_crc32table
 clean-files	:= crc32table.h
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
new file mode 100644
index 000000000000..9e123ae326bc
--- /dev/null
+++ b/lib/dynamic_debug.c
@@ -0,0 +1,756 @@
+/*
+ * lib/dynamic_debug.c
+ *
+ * make pr_debug()/dev_dbg() calls runtime configurable based upon their
+ * source module.
+ *
+ * Copyright (C) 2008 Jason Baron <jbaron@redhat.com>
+ * By Greg Banks <gnb@melbourne.sgi.com>
+ * Copyright (c) 2008 Silicon Graphics Inc.  All Rights Reserved.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kallsyms.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/list.h>
+#include <linux/sysctl.h>
+#include <linux/ctype.h>
+#include <linux/uaccess.h>
+#include <linux/dynamic_debug.h>
+#include <linux/debugfs.h>
+
+extern struct _ddebug __start___verbose[];
+extern struct _ddebug __stop___verbose[];
+
+/* dynamic_debug_enabled, and dynamic_debug_enabled2 are bitmasks in which
+ * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They
+ * use independent hash functions, to reduce the chance of false positives.
+ */
+long long dynamic_debug_enabled;
+EXPORT_SYMBOL_GPL(dynamic_debug_enabled);
+long long dynamic_debug_enabled2;
+EXPORT_SYMBOL_GPL(dynamic_debug_enabled2);
+
+struct ddebug_table {
+	struct list_head link;
+	char *mod_name;
+	unsigned int num_ddebugs;
+	unsigned int num_enabled;
+	struct _ddebug *ddebugs;
+};
+
+struct ddebug_query {
+	const char *filename;
+	const char *module;
+	const char *function;
+	const char *format;
+	unsigned int first_lineno, last_lineno;
+};
+
+struct ddebug_iter {
+	struct ddebug_table *table;
+	unsigned int idx;
+};
+
+static DEFINE_MUTEX(ddebug_lock);
+static LIST_HEAD(ddebug_tables);
+static int verbose = 0;
+
+/* Return the last part of a pathname */
+static inline const char *basename(const char *path)
+{
+	const char *tail = strrchr(path, '/');
+	return tail ? tail+1 : path;
+}
+
+/* format a string into buf[] which describes the _ddebug's flags */
+static char *ddebug_describe_flags(struct _ddebug *dp, char *buf,
+				    size_t maxlen)
+{
+	char *p = buf;
+
+	BUG_ON(maxlen < 4);
+	if (dp->flags & _DPRINTK_FLAGS_PRINT)
+		*p++ = 'p';
+	if (p == buf)
+		*p++ = '-';
+	*p = '\0';
+
+	return buf;
+}
+
+/*
+ * must be called with ddebug_lock held
+ */
+
+static int disabled_hash(char hash, bool first_table)
+{
+	struct ddebug_table *dt;
+	char table_hash_value;
+
+	list_for_each_entry(dt, &ddebug_tables, link) {
+		if (first_table)
+			table_hash_value = dt->ddebugs->primary_hash;
+		else
+			table_hash_value = dt->ddebugs->secondary_hash;
+		if (dt->num_enabled && (hash == table_hash_value))
+			return 0;
+	}
+	return 1;
+}
+
+/*
+ * Search the tables for _ddebug's which match the given
+ * `query' and apply the `flags' and `mask' to them.  Tells
+ * the user which ddebug's were changed, or whether none
+ * were matched.
+ */
+static void ddebug_change(const struct ddebug_query *query,
+			   unsigned int flags, unsigned int mask)
+{
+	int i;
+	struct ddebug_table *dt;
+	unsigned int newflags;
+	unsigned int nfound = 0;
+	char flagbuf[8];
+
+	/* search for matching ddebugs */
+	mutex_lock(&ddebug_lock);
+	list_for_each_entry(dt, &ddebug_tables, link) {
+
+		/* match against the module name */
+		if (query->module != NULL &&
+		    strcmp(query->module, dt->mod_name))
+			continue;
+
+		for (i = 0 ; i < dt->num_ddebugs ; i++) {
+			struct _ddebug *dp = &dt->ddebugs[i];
+
+			/* match against the source filename */
+			if (query->filename != NULL &&
+			    strcmp(query->filename, dp->filename) &&
+			    strcmp(query->filename, basename(dp->filename)))
+				continue;
+
+			/* match against the function */
+			if (query->function != NULL &&
+			    strcmp(query->function, dp->function))
+				continue;
+
+			/* match against the format */
+			if (query->format != NULL &&
+			    strstr(dp->format, query->format) == NULL)
+				continue;
+
+			/* match against the line number range */
+			if (query->first_lineno &&
+			    dp->lineno < query->first_lineno)
+				continue;
+			if (query->last_lineno &&
+			    dp->lineno > query->last_lineno)
+				continue;
+
+			nfound++;
+
+			newflags = (dp->flags & mask) | flags;
+			if (newflags == dp->flags)
+				continue;
+
+			if (!newflags)
+				dt->num_enabled--;
+			else if (!dp-flags)
+				dt->num_enabled++;
+			dp->flags = newflags;
+			if (newflags) {
+				dynamic_debug_enabled |=
+						(1LL << dp->primary_hash);
+				dynamic_debug_enabled2 |=
+						(1LL << dp->secondary_hash);
+			} else {
+				if (disabled_hash(dp->primary_hash, true))
+					dynamic_debug_enabled &=
+						~(1LL << dp->primary_hash);
+				if (disabled_hash(dp->secondary_hash, false))
+					dynamic_debug_enabled2 &=
+						~(1LL << dp->secondary_hash);
+			}
+			if (verbose)
+				printk(KERN_INFO
+					"ddebug: changed %s:%d [%s]%s %s\n",
+					dp->filename, dp->lineno,
+					dt->mod_name, dp->function,
+					ddebug_describe_flags(dp, flagbuf,
+							sizeof(flagbuf)));
+		}
+	}
+	mutex_unlock(&ddebug_lock);
+
+	if (!nfound && verbose)
+		printk(KERN_INFO "ddebug: no matches for query\n");
+}
+
+/*
+ * Wrapper around strsep() to collapse the multiple empty tokens
+ * that it returns when fed sequences of separator characters.
+ * Now, if we had strtok_r()...
+ */
+static inline char *nearly_strtok_r(char **p, const char *sep)
+{
+	char *r;
+
+	while ((r = strsep(p, sep)) != NULL && *r == '\0')
+		;
+	return r;
+}
+
+/*
+ * Split the buffer `buf' into space-separated words.
+ * Return the number of such words or <0 on error.
+ */
+static int ddebug_tokenize(char *buf, char *words[], int maxwords)
+{
+	int nwords = 0;
+
+	while (nwords < maxwords &&
+	       (words[nwords] = nearly_strtok_r(&buf, " \t\r\n")) != NULL)
+		nwords++;
+	if (buf)
+		return -EINVAL;	/* ran out of words[] before bytes */
+
+	if (verbose) {
+		int i;
+		printk(KERN_INFO "%s: split into words:", __func__);
+		for (i = 0 ; i < nwords ; i++)
+			printk(" \"%s\"", words[i]);
+		printk("\n");
+	}
+
+	return nwords;
+}
+
+/*
+ * Parse a single line number.  Note that the empty string ""
+ * is treated as a special case and converted to zero, which
+ * is later treated as a "don't care" value.
+ */
+static inline int parse_lineno(const char *str, unsigned int *val)
+{
+	char *end = NULL;
+	BUG_ON(str == NULL);
+	if (*str == '\0') {
+		*val = 0;
+		return 0;
+	}
+	*val = simple_strtoul(str, &end, 10);
+	return end == NULL || end == str || *end != '\0' ? -EINVAL : 0;
+}
+
+/*
+ * Undo octal escaping in a string, inplace.  This is useful to
+ * allow the user to express a query which matches a format
+ * containing embedded spaces.
+ */
+#define isodigit(c)		((c) >= '0' && (c) <= '7')
+static char *unescape(char *str)
+{
+	char *in = str;
+	char *out = str;
+
+	while (*in) {
+		if (*in == '\\') {
+			if (in[1] == '\\') {
+				*out++ = '\\';
+				in += 2;
+				continue;
+			} else if (in[1] == 't') {
+				*out++ = '\t';
+				in += 2;
+				continue;
+			} else if (in[1] == 'n') {
+				*out++ = '\n';
+				in += 2;
+				continue;
+			} else if (isodigit(in[1]) &&
+			         isodigit(in[2]) &&
+			         isodigit(in[3])) {
+				*out++ = ((in[1] - '0')<<6) |
+				          ((in[2] - '0')<<3) |
+				          (in[3] - '0');
+				in += 4;
+				continue;
+			}
+		}
+		*out++ = *in++;
+	}
+	*out = '\0';
+
+	return str;
+}
+
+/*
+ * Parse words[] as a ddebug query specification, which is a series
+ * of (keyword, value) pairs chosen from these possibilities:
+ *
+ * func <function-name>
+ * file <full-pathname>
+ * file <base-filename>
+ * module <module-name>
+ * format <escaped-string-to-find-in-format>
+ * line <lineno>
+ * line <first-lineno>-<last-lineno> // where either may be empty
+ */
+static int ddebug_parse_query(char *words[], int nwords,
+			       struct ddebug_query *query)
+{
+	unsigned int i;
+
+	/* check we have an even number of words */
+	if (nwords % 2 != 0)
+		return -EINVAL;
+	memset(query, 0, sizeof(*query));
+
+	for (i = 0 ; i < nwords ; i += 2) {
+		if (!strcmp(words[i], "func"))
+			query->function = words[i+1];
+		else if (!strcmp(words[i], "file"))
+			query->filename = words[i+1];
+		else if (!strcmp(words[i], "module"))
+			query->module = words[i+1];
+		else if (!strcmp(words[i], "format"))
+			query->format = unescape(words[i+1]);
+		else if (!strcmp(words[i], "line")) {
+			char *first = words[i+1];
+			char *last = strchr(first, '-');
+			if (last)
+				*last++ = '\0';
+			if (parse_lineno(first, &query->first_lineno) < 0)
+				return -EINVAL;
+			if (last != NULL) {
+				/* range <first>-<last> */
+				if (parse_lineno(last, &query->last_lineno) < 0)
+					return -EINVAL;
+			} else {
+				query->last_lineno = query->first_lineno;
+			}
+		} else {
+			if (verbose)
+				printk(KERN_ERR "%s: unknown keyword \"%s\"\n",
+					__func__, words[i]);
+			return -EINVAL;
+		}
+	}
+
+	if (verbose)
+		printk(KERN_INFO "%s: q->function=\"%s\" q->filename=\"%s\" "
+		       "q->module=\"%s\" q->format=\"%s\" q->lineno=%u-%u\n",
+			__func__, query->function, query->filename,
+			query->module, query->format, query->first_lineno,
+			query->last_lineno);
+
+	return 0;
+}
+
+/*
+ * Parse `str' as a flags specification, format [-+=][p]+.
+ * Sets up *maskp and *flagsp to be used when changing the
+ * flags fields of matched _ddebug's.  Returns 0 on success
+ * or <0 on error.
+ */
+static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
+			       unsigned int *maskp)
+{
+	unsigned flags = 0;
+	int op = '=';
+
+	switch (*str) {
+	case '+':
+	case '-':
+	case '=':
+		op = *str++;
+		break;
+	default:
+		return -EINVAL;
+	}
+	if (verbose)
+		printk(KERN_INFO "%s: op='%c'\n", __func__, op);
+
+	for ( ; *str ; ++str) {
+		switch (*str) {
+		case 'p':
+			flags |= _DPRINTK_FLAGS_PRINT;
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+	if (flags == 0)
+		return -EINVAL;
+	if (verbose)
+		printk(KERN_INFO "%s: flags=0x%x\n", __func__, flags);
+
+	/* calculate final *flagsp, *maskp according to mask and op */
+	switch (op) {
+	case '=':
+		*maskp = 0;
+		*flagsp = flags;
+		break;
+	case '+':
+		*maskp = ~0U;
+		*flagsp = flags;
+		break;
+	case '-':
+		*maskp = ~flags;
+		*flagsp = 0;
+		break;
+	}
+	if (verbose)
+		printk(KERN_INFO "%s: *flagsp=0x%x *maskp=0x%x\n",
+			__func__, *flagsp, *maskp);
+	return 0;
+}
+
+/*
+ * File_ops->write method for <debugfs>/dynamic_debug/conrol.  Gathers the
+ * command text from userspace, parses and executes it.
+ */
+static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf,
+				  size_t len, loff_t *offp)
+{
+	unsigned int flags = 0, mask = 0;
+	struct ddebug_query query;
+#define MAXWORDS 9
+	int nwords;
+	char *words[MAXWORDS];
+	char tmpbuf[256];
+
+	if (len == 0)
+		return 0;
+	/* we don't check *offp -- multiple writes() are allowed */
+	if (len > sizeof(tmpbuf)-1)
+		return -E2BIG;
+	if (copy_from_user(tmpbuf, ubuf, len))
+		return -EFAULT;
+	tmpbuf[len] = '\0';
+	if (verbose)
+		printk(KERN_INFO "%s: read %d bytes from userspace\n",
+			__func__, (int)len);
+
+	nwords = ddebug_tokenize(tmpbuf, words, MAXWORDS);
+	if (nwords < 0)
+		return -EINVAL;
+	if (ddebug_parse_query(words, nwords-1, &query))
+		return -EINVAL;
+	if (ddebug_parse_flags(words[nwords-1], &flags, &mask))
+		return -EINVAL;
+
+	/* actually go and implement the change */
+	ddebug_change(&query, flags, mask);
+
+	*offp += len;
+	return len;
+}
+
+/*
+ * Set the iterator to point to the first _ddebug object
+ * and return a pointer to that first object.  Returns
+ * NULL if there are no _ddebugs at all.
+ */
+static struct _ddebug *ddebug_iter_first(struct ddebug_iter *iter)
+{
+	if (list_empty(&ddebug_tables)) {
+		iter->table = NULL;
+		iter->idx = 0;
+		return NULL;
+	}
+	iter->table = list_entry(ddebug_tables.next,
+				 struct ddebug_table, link);
+	iter->idx = 0;
+	return &iter->table->ddebugs[iter->idx];
+}
+
+/*
+ * Advance the iterator to point to the next _ddebug
+ * object from the one the iterator currently points at,
+ * and returns a pointer to the new _ddebug.  Returns
+ * NULL if the iterator has seen all the _ddebugs.
+ */
+static struct _ddebug *ddebug_iter_next(struct ddebug_iter *iter)
+{
+	if (iter->table == NULL)
+		return NULL;
+	if (++iter->idx == iter->table->num_ddebugs) {
+		/* iterate to next table */
+		iter->idx = 0;
+		if (list_is_last(&iter->table->link, &ddebug_tables)) {
+			iter->table = NULL;
+			return NULL;
+		}
+		iter->table = list_entry(iter->table->link.next,
+					 struct ddebug_table, link);
+	}
+	return &iter->table->ddebugs[iter->idx];
+}
+
+/*
+ * Seq_ops start method.  Called at the start of every
+ * read() call from userspace.  Takes the ddebug_lock and
+ * seeks the seq_file's iterator to the given position.
+ */
+static void *ddebug_proc_start(struct seq_file *m, loff_t *pos)
+{
+	struct ddebug_iter *iter = m->private;
+	struct _ddebug *dp;
+	int n = *pos;
+
+	if (verbose)
+		printk(KERN_INFO "%s: called m=%p *pos=%lld\n",
+			__func__, m, (unsigned long long)*pos);
+
+	mutex_lock(&ddebug_lock);
+
+	if (!n)
+		return SEQ_START_TOKEN;
+	if (n < 0)
+		return NULL;
+	dp = ddebug_iter_first(iter);
+	while (dp != NULL && --n > 0)
+		dp = ddebug_iter_next(iter);
+	return dp;
+}
+
+/*
+ * Seq_ops next method.  Called several times within a read()
+ * call from userspace, with ddebug_lock held.  Walks to the
+ * next _ddebug object with a special case for the header line.
+ */
+static void *ddebug_proc_next(struct seq_file *m, void *p, loff_t *pos)
+{
+	struct ddebug_iter *iter = m->private;
+	struct _ddebug *dp;
+
+	if (verbose)
+		printk(KERN_INFO "%s: called m=%p p=%p *pos=%lld\n",
+			__func__, m, p, (unsigned long long)*pos);
+
+	if (p == SEQ_START_TOKEN)
+		dp = ddebug_iter_first(iter);
+	else
+		dp = ddebug_iter_next(iter);
+	++*pos;
+	return dp;
+}
+
+/*
+ * Seq_ops show method.  Called several times within a read()
+ * call from userspace, with ddebug_lock held.  Formats the
+ * current _ddebug as a single human-readable line, with a
+ * special case for the header line.
+ */
+static int ddebug_proc_show(struct seq_file *m, void *p)
+{
+	struct ddebug_iter *iter = m->private;
+	struct _ddebug *dp = p;
+	char flagsbuf[8];
+
+	if (verbose)
+		printk(KERN_INFO "%s: called m=%p p=%p\n",
+			__func__, m, p);
+
+	if (p == SEQ_START_TOKEN) {
+		seq_puts(m,
+			"# filename:lineno [module]function flags format\n");
+		return 0;
+	}
+
+	seq_printf(m, "%s:%u [%s]%s %s \"",
+		   dp->filename, dp->lineno,
+		   iter->table->mod_name, dp->function,
+		   ddebug_describe_flags(dp, flagsbuf, sizeof(flagsbuf)));
+	seq_escape(m, dp->format, "\t\r\n\"");
+	seq_puts(m, "\"\n");
+
+	return 0;
+}
+
+/*
+ * Seq_ops stop method.  Called at the end of each read()
+ * call from userspace.  Drops ddebug_lock.
+ */
+static void ddebug_proc_stop(struct seq_file *m, void *p)
+{
+	if (verbose)
+		printk(KERN_INFO "%s: called m=%p p=%p\n",
+			__func__, m, p);
+	mutex_unlock(&ddebug_lock);
+}
+
+static const struct seq_operations ddebug_proc_seqops = {
+	.start = ddebug_proc_start,
+	.next = ddebug_proc_next,
+	.show = ddebug_proc_show,
+	.stop = ddebug_proc_stop
+};
+
+/*
+ * File_ops->open method for <debugfs>/dynamic_debug/control.  Does the seq_file
+ * setup dance, and also creates an iterator to walk the _ddebugs.
+ * Note that we create a seq_file always, even for O_WRONLY files
+ * where it's not needed, as doing so simplifies the ->release method.
+ */
+static int ddebug_proc_open(struct inode *inode, struct file *file)
+{
+	struct ddebug_iter *iter;
+	int err;
+
+	if (verbose)
+		printk(KERN_INFO "%s: called\n", __func__);
+
+	iter = kzalloc(sizeof(*iter), GFP_KERNEL);
+	if (iter == NULL)
+		return -ENOMEM;
+
+	err = seq_open(file, &ddebug_proc_seqops);
+	if (err) {
+		kfree(iter);
+		return err;
+	}
+	((struct seq_file *) file->private_data)->private = iter;
+	return 0;
+}
+
+static const struct file_operations ddebug_proc_fops = {
+	.owner = THIS_MODULE,
+	.open = ddebug_proc_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = seq_release_private,
+	.write = ddebug_proc_write
+};
+
+/*
+ * Allocate a new ddebug_table for the given module
+ * and add it to the global list.
+ */
+int ddebug_add_module(struct _ddebug *tab, unsigned int n,
+			     const char *name)
+{
+	struct ddebug_table *dt;
+	char *new_name;
+
+	dt = kzalloc(sizeof(*dt), GFP_KERNEL);
+	if (dt == NULL)
+		return -ENOMEM;
+	new_name = kstrdup(name, GFP_KERNEL);
+	if (new_name == NULL) {
+		kfree(dt);
+		return -ENOMEM;
+	}
+	dt->mod_name = new_name;
+	dt->num_ddebugs = n;
+	dt->num_enabled = 0;
+	dt->ddebugs = tab;
+
+	mutex_lock(&ddebug_lock);
+	list_add_tail(&dt->link, &ddebug_tables);
+	mutex_unlock(&ddebug_lock);
+
+	if (verbose)
+		printk(KERN_INFO "%u debug prints in module %s\n",
+				 n, dt->mod_name);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ddebug_add_module);
+
+static void ddebug_table_free(struct ddebug_table *dt)
+{
+	list_del_init(&dt->link);
+	kfree(dt->mod_name);
+	kfree(dt);
+}
+
+/*
+ * Called in response to a module being unloaded.  Removes
+ * any ddebug_table's which point at the module.
+ */
+int ddebug_remove_module(char *mod_name)
+{
+	struct ddebug_table *dt, *nextdt;
+	int ret = -ENOENT;
+
+	if (verbose)
+		printk(KERN_INFO "%s: removing module \"%s\"\n",
+				__func__, mod_name);
+
+	mutex_lock(&ddebug_lock);
+	list_for_each_entry_safe(dt, nextdt, &ddebug_tables, link) {
+		if (!strcmp(dt->mod_name, mod_name)) {
+			ddebug_table_free(dt);
+			ret = 0;
+		}
+	}
+	mutex_unlock(&ddebug_lock);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ddebug_remove_module);
+
+static void ddebug_remove_all_tables(void)
+{
+	mutex_lock(&ddebug_lock);
+	while (!list_empty(&ddebug_tables)) {
+		struct ddebug_table *dt = list_entry(ddebug_tables.next,
+						      struct ddebug_table,
+						      link);
+		ddebug_table_free(dt);
+	}
+	mutex_unlock(&ddebug_lock);
+}
+
+static int __init dynamic_debug_init(void)
+{
+	struct dentry *dir, *file;
+	struct _ddebug *iter, *iter_start;
+	const char *modname = NULL;
+	int ret = 0;
+	int n = 0;
+
+	dir = debugfs_create_dir("dynamic_debug", NULL);
+	if (!dir)
+		return -ENOMEM;
+	file = debugfs_create_file("control", 0644, dir, NULL,
+					&ddebug_proc_fops);
+	if (!file) {
+		debugfs_remove(dir);
+		return -ENOMEM;
+	}
+	if (__start___verbose != __stop___verbose) {
+		iter = __start___verbose;
+		modname = iter->modname;
+		iter_start = iter;
+		for (; iter < __stop___verbose; iter++) {
+			if (strcmp(modname, iter->modname)) {
+				ret = ddebug_add_module(iter_start, n, modname);
+				if (ret)
+					goto out_free;
+				n = 0;
+				modname = iter->modname;
+				iter_start = iter;
+			}
+			n++;
+		}
+		ret = ddebug_add_module(iter_start, n, modname);
+	}
+out_free:
+	if (ret) {
+		ddebug_remove_all_tables();
+		debugfs_remove(dir);
+		debugfs_remove(file);
+	}
+	return 0;
+}
+module_init(dynamic_debug_init);
diff --git a/lib/dynamic_printk.c b/lib/dynamic_printk.c
deleted file mode 100644
index 165a19763dc9..000000000000
--- a/lib/dynamic_printk.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * lib/dynamic_printk.c
- *
- * make pr_debug()/dev_dbg() calls runtime configurable based upon their
- * their source module.
- *
- * Copyright (C) 2008 Red Hat, Inc., Jason Baron <jbaron@redhat.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/uaccess.h>
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-#include <linux/fs.h>
-
-extern struct mod_debug __start___verbose[];
-extern struct mod_debug __stop___verbose[];
-
-struct debug_name {
-	struct hlist_node hlist;
-	struct hlist_node hlist2;
-	int hash1;
-	int hash2;
-	char *name;
-	int enable;
-	int type;
-};
-
-static int nr_entries;
-static int num_enabled;
-int dynamic_enabled = DYNAMIC_ENABLED_NONE;
-static struct hlist_head module_table[DEBUG_HASH_TABLE_SIZE] =
-	{ [0 ... DEBUG_HASH_TABLE_SIZE-1] = HLIST_HEAD_INIT };
-static struct hlist_head module_table2[DEBUG_HASH_TABLE_SIZE] =
-	{ [0 ... DEBUG_HASH_TABLE_SIZE-1] = HLIST_HEAD_INIT };
-static DECLARE_MUTEX(debug_list_mutex);
-
-/* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which
- * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They
- * use independent hash functions, to reduce the chance of false positives.
- */
-long long dynamic_printk_enabled;
-EXPORT_SYMBOL_GPL(dynamic_printk_enabled);
-long long dynamic_printk_enabled2;
-EXPORT_SYMBOL_GPL(dynamic_printk_enabled2);
-
-/* returns the debug module pointer. */
-static struct debug_name *find_debug_module(char *module_name)
-{
-	int i;
-	struct hlist_head *head;
-	struct hlist_node *node;
-	struct debug_name *element;
-
-	element = NULL;
-	for (i = 0; i < DEBUG_HASH_TABLE_SIZE; i++) {
-		head = &module_table[i];
-		hlist_for_each_entry_rcu(element, node, head, hlist)
-			if (!strcmp(element->name, module_name))
-				return element;
-	}
-	return NULL;
-}
-
-/* returns the debug module pointer. */
-static struct debug_name *find_debug_module_hash(char *module_name, int hash)
-{
-	struct hlist_head *head;
-	struct hlist_node *node;
-	struct debug_name *element;
-
-	element = NULL;
-	head = &module_table[hash];
-	hlist_for_each_entry_rcu(element, node, head, hlist)
-		if (!strcmp(element->name, module_name))
-			return element;
-	return NULL;
-}
-
-/* caller must hold mutex*/
-static int __add_debug_module(char *mod_name, int hash, int hash2)
-{
-	struct debug_name *new;
-	char *module_name;
-	int ret = 0;
-
-	if (find_debug_module(mod_name)) {
-		ret = -EINVAL;
-		goto out;
-	}
-	module_name = kmalloc(strlen(mod_name) + 1, GFP_KERNEL);
-	if (!module_name) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	module_name = strcpy(module_name, mod_name);
-	module_name[strlen(mod_name)] = '\0';
-	new = kzalloc(sizeof(struct debug_name), GFP_KERNEL);
-	if (!new) {
-		kfree(module_name);
-		ret = -ENOMEM;
-		goto out;
-	}
-	INIT_HLIST_NODE(&new->hlist);
-	INIT_HLIST_NODE(&new->hlist2);
-	new->name = module_name;
-	new->hash1 = hash;
-	new->hash2 = hash2;
-	hlist_add_head_rcu(&new->hlist, &module_table[hash]);
-	hlist_add_head_rcu(&new->hlist2, &module_table2[hash2]);
-	nr_entries++;
-out:
-	return ret;
-}
-
-int unregister_dynamic_debug_module(char *mod_name)
-{
-	struct debug_name *element;
-	int ret = 0;
-
-	down(&debug_list_mutex);
-	element = find_debug_module(mod_name);
-	if (!element) {
-		ret = -EINVAL;
-		goto out;
-	}
-	hlist_del_rcu(&element->hlist);
-	hlist_del_rcu(&element->hlist2);
-	synchronize_rcu();
-	kfree(element->name);
-	if (element->enable)
-		num_enabled--;
-	kfree(element);
-	nr_entries--;
-out:
-	up(&debug_list_mutex);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(unregister_dynamic_debug_module);
-
-int register_dynamic_debug_module(char *mod_name, int type, char *share_name,
-					char *flags, int hash, int hash2)
-{
-	struct debug_name *elem;
-	int ret = 0;
-
-	down(&debug_list_mutex);
-	elem = find_debug_module(mod_name);
-	if (!elem) {
-		if (__add_debug_module(mod_name, hash, hash2))
-			goto out;
-		elem = find_debug_module(mod_name);
-		if (dynamic_enabled == DYNAMIC_ENABLED_ALL &&
-				!strcmp(mod_name, share_name)) {
-			elem->enable = true;
-			num_enabled++;
-		}
-	}
-	elem->type |= type;
-out:
-	up(&debug_list_mutex);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(register_dynamic_debug_module);
-
-int __dynamic_dbg_enabled_helper(char *mod_name, int type, int value, int hash)
-{
-	struct debug_name *elem;
-	int ret = 0;
-
-	if (dynamic_enabled == DYNAMIC_ENABLED_ALL)
-		return 1;
-	rcu_read_lock();
-	elem = find_debug_module_hash(mod_name, hash);
-	if (elem && elem->enable)
-		ret = 1;
-	rcu_read_unlock();
-	return ret;
-}
-EXPORT_SYMBOL_GPL(__dynamic_dbg_enabled_helper);
-
-static void set_all(bool enable)
-{
-	struct debug_name *e;
-	struct hlist_node *node;
-	int i;
-	long long enable_mask;
-
-	for (i = 0; i < DEBUG_HASH_TABLE_SIZE; i++) {
-		if (module_table[i].first != NULL) {
-			hlist_for_each_entry(e, node, &module_table[i], hlist) {
-				e->enable = enable;
-			}
-		}
-	}
-	if (enable)
-		enable_mask = ULLONG_MAX;
-	else
-		enable_mask = 0;
-	dynamic_printk_enabled = enable_mask;
-	dynamic_printk_enabled2 = enable_mask;
-}
-
-static int disabled_hash(int i, bool first_table)
-{
-	struct debug_name *e;
-	struct hlist_node *node;
-
-	if (first_table) {
-		hlist_for_each_entry(e, node, &module_table[i], hlist) {
-			if (e->enable)
-				return 0;
-		}
-	} else {
-		hlist_for_each_entry(e, node, &module_table2[i], hlist2) {
-			if (e->enable)
-				return 0;
-		}
-	}
-	return 1;
-}
-
-static ssize_t pr_debug_write(struct file *file, const char __user *buf,
-				size_t length, loff_t *ppos)
-{
-	char *buffer, *s, *value_str, *setting_str;
-	int err, value;
-	struct debug_name *elem = NULL;
-	int all = 0;
-
-	if (length > PAGE_SIZE || length < 0)
-		return -EINVAL;
-
-	buffer = (char *)__get_free_page(GFP_KERNEL);
-	if (!buffer)
-		return -ENOMEM;
-
-	err = -EFAULT;
-	if (copy_from_user(buffer, buf, length))
-		goto out;
-
-	err = -EINVAL;
-	if (length < PAGE_SIZE)
-		buffer[length] = '\0';
-	else if (buffer[PAGE_SIZE-1])
-		goto out;
-
-	err = -EINVAL;
-	down(&debug_list_mutex);
-
-	if (strncmp("set", buffer, 3))
-		goto out_up;
-	s = buffer + 3;
-	setting_str = strsep(&s, "=");
-	if (s == NULL)
-		goto out_up;
-	setting_str = strstrip(setting_str);
-	value_str = strsep(&s, " ");
-	if (s == NULL)
-		goto out_up;
-	s = strstrip(s);
-	if (!strncmp(s, "all", 3))
-		all = 1;
-	else
-		elem = find_debug_module(s);
-	if (!strncmp(setting_str, "enable", 6)) {
-		value = !!simple_strtol(value_str, NULL, 10);
-		if (all) {
-			if (value) {
-				set_all(true);
-				num_enabled = nr_entries;
-				dynamic_enabled = DYNAMIC_ENABLED_ALL;
-			} else {
-				set_all(false);
-				num_enabled = 0;
-				dynamic_enabled = DYNAMIC_ENABLED_NONE;
-			}
-			err = 0;
-		} else if (elem) {
-			if (value && (elem->enable == 0)) {
-				dynamic_printk_enabled |= (1LL << elem->hash1);
-				dynamic_printk_enabled2 |= (1LL << elem->hash2);
-				elem->enable = 1;
-				num_enabled++;
-				dynamic_enabled = DYNAMIC_ENABLED_SOME;
-				err = 0;
-				printk(KERN_DEBUG
-					"debugging enabled for module %s\n",
-					elem->name);
-			} else if (!value && (elem->enable == 1)) {
-				elem->enable = 0;
-				num_enabled--;
-				if (disabled_hash(elem->hash1, true))
-					dynamic_printk_enabled &=
-							~(1LL << elem->hash1);
-				if (disabled_hash(elem->hash2, false))
-					dynamic_printk_enabled2 &=
-							~(1LL << elem->hash2);
-				if (num_enabled)
-					dynamic_enabled = DYNAMIC_ENABLED_SOME;
-				else
-					dynamic_enabled = DYNAMIC_ENABLED_NONE;
-				err = 0;
-				printk(KERN_DEBUG
-					"debugging disabled for module %s\n",
-					elem->name);
-			}
-		}
-	}
-	if (!err)
-		err = length;
-out_up:
-	up(&debug_list_mutex);
-out:
-	free_page((unsigned long)buffer);
-	return err;
-}
-
-static void *pr_debug_seq_start(struct seq_file *f, loff_t *pos)
-{
-	return (*pos < DEBUG_HASH_TABLE_SIZE) ? pos : NULL;
-}
-
-static void *pr_debug_seq_next(struct seq_file *s, void *v, loff_t *pos)
-{
-	(*pos)++;
-	if (*pos >= DEBUG_HASH_TABLE_SIZE)
-		return NULL;
-	return pos;
-}
-
-static void pr_debug_seq_stop(struct seq_file *s, void *v)
-{
-	/* Nothing to do */
-}
-
-static int pr_debug_seq_show(struct seq_file *s, void *v)
-{
-	struct hlist_head *head;
-	struct hlist_node *node;
-	struct debug_name *elem;
-	unsigned int i = *(loff_t *) v;
-
-	rcu_read_lock();
-	head = &module_table[i];
-	hlist_for_each_entry_rcu(elem, node, head, hlist) {
-		seq_printf(s, "%s enabled=%d", elem->name, elem->enable);
-		seq_printf(s, "\n");
-	}
-	rcu_read_unlock();
-	return 0;
-}
-
-static struct seq_operations pr_debug_seq_ops = {
-	.start = pr_debug_seq_start,
-	.next  = pr_debug_seq_next,
-	.stop  = pr_debug_seq_stop,
-	.show  = pr_debug_seq_show
-};
-
-static int pr_debug_open(struct inode *inode, struct file *filp)
-{
-	return seq_open(filp, &pr_debug_seq_ops);
-}
-
-static const struct file_operations pr_debug_operations = {
-	.open		= pr_debug_open,
-	.read		= seq_read,
-	.write		= pr_debug_write,
-	.llseek		= seq_lseek,
-	.release	= seq_release,
-};
-
-static int __init dynamic_printk_init(void)
-{
-	struct dentry *dir, *file;
-	struct mod_debug *iter;
-	unsigned long value;
-
-	dir = debugfs_create_dir("dynamic_printk", NULL);
-	if (!dir)
-		return -ENOMEM;
-	file = debugfs_create_file("modules", 0644, dir, NULL,
-					&pr_debug_operations);
-	if (!file) {
-		debugfs_remove(dir);
-		return -ENOMEM;
-	}
-	for (value = (unsigned long)__start___verbose;
-		value < (unsigned long)__stop___verbose;
-		value += sizeof(struct mod_debug)) {
-			iter = (struct mod_debug *)value;
-			register_dynamic_debug_module(iter->modname,
-				iter->type,
-				iter->logical_modname,
-				iter->flag_names, iter->hash, iter->hash2);
-	}
-	if (dynamic_enabled == DYNAMIC_ENABLED_ALL)
-		set_all(true);
-	return 0;
-}
-module_init(dynamic_printk_init);
-/* may want to move this earlier so we can get traces as early as possible */
-
-static int __init dynamic_printk_setup(char *str)
-{
-	if (str)
-		return -ENOENT;
-	dynamic_enabled = DYNAMIC_ENABLED_ALL;
-	return 0;
-}
-/* Use early_param(), so we can get debug output as early as possible */
-early_param("dynamic_printk", dynamic_printk_setup);
diff --git a/net/netfilter/nf_conntrack_pptp.c b/net/netfilter/nf_conntrack_pptp.c
index 9e169ef2e854..12bd09dbd36c 100644
--- a/net/netfilter/nf_conntrack_pptp.c
+++ b/net/netfilter/nf_conntrack_pptp.c
@@ -66,7 +66,7 @@ void
 			     struct nf_conntrack_expect *exp) __read_mostly;
 EXPORT_SYMBOL_GPL(nf_nat_pptp_hook_expectfn);
 
-#if defined(DEBUG) || defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
 /* PptpControlMessageType names */
 const char *const pptp_msg_name[] = {
 	"UNKNOWN_MESSAGE",
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index e06365775bdf..c18fa150b6fe 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -97,7 +97,7 @@ modname_flags  = $(if $(filter 1,$(words $(modname))),\
                  -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
 
 #hash values
-ifdef CONFIG_DYNAMIC_PRINTK_DEBUG
+ifdef CONFIG_DYNAMIC_DEBUG
 debug_flags = -D"DEBUG_HASH=$(shell ./scripts/basic/hash djb2 $(@D)$(modname))"\
               -D"DEBUG_HASH2=$(shell ./scripts/basic/hash r5 $(@D)$(modname))"
 else
-- 
cgit v1.2.3


From e6e66b02e11563abdb7f69dcb7a2efbd8d577e77 Mon Sep 17 00:00:00 2001
From: Greg Banks <gnb@sgi.com>
Date: Wed, 11 Mar 2009 21:07:28 +1100
Subject: Dynamic debug: fix pr_fmt() build error

When CONFIG_DYNAMIC_DEBUG is enabled, allow callers of pr_debug()
to provide their own definition of pr_fmt() even if that definition
uses tricks like

#define pr_fmt(fmt) "%s:" fmt, __func__

Signed-off-by: Greg Banks <gnb@sgi.com>
Cc: Jason Baron <jbaron@redhat.com>
Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 include/linux/dynamic_debug.h | 4 ++--
 include/linux/kernel.h        | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 07781aaa1164..baabf33be244 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -57,7 +57,7 @@ extern int ddebug_remove_module(char *mod_name);
 	{ KBUILD_MODNAME, __func__, __FILE__, fmt, DEBUG_HASH,	\
 		DEBUG_HASH2, __LINE__, _DPRINTK_FLAGS_DEFAULT };	\
 	if (__dynamic_dbg_enabled(descriptor))				\
-		printk(KERN_DEBUG KBUILD_MODNAME ":" fmt,		\
+		printk(KERN_DEBUG KBUILD_MODNAME ":" pr_fmt(fmt),	\
 				##__VA_ARGS__);				\
 	} while (0)
 
@@ -70,7 +70,7 @@ extern int ddebug_remove_module(char *mod_name);
 		DEBUG_HASH2, __LINE__, _DPRINTK_FLAGS_DEFAULT };	\
 	if (__dynamic_dbg_enabled(descriptor))				\
 			dev_printk(KERN_DEBUG, dev,			\
-					KBUILD_MODNAME ": " fmt,	\
+					KBUILD_MODNAME ": " pr_fmt(fmt),\
 					##__VA_ARGS__);			\
 	} while (0)
 
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index b5496ecbec71..914918abfdd1 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -359,8 +359,9 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
 #define pr_debug(fmt, ...) \
 	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #elif defined(CONFIG_DYNAMIC_DEBUG)
+/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
 #define pr_debug(fmt, ...) do { \
-	dynamic_pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \
+	dynamic_pr_debug(fmt, ##__VA_ARGS__); \
 	} while (0)
 #else
 #define pr_debug(fmt, ...) \
-- 
cgit v1.2.3


From 1a660164c291f41b2aa853a7269b310933574ef9 Mon Sep 17 00:00:00 2001
From: Mark Lord <mlord@pobox.com>
Date: Wed, 25 Feb 2009 15:18:32 -0500
Subject: [libata] Export ata_pio_queue_task() so that it can be used from
 sata_mv.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/libata-core.c | 1 +
 drivers/ata/libata.h      | 2 --
 include/linux/libata.h    | 3 +++
 3 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 060bcd601f57..d4a7b8a96ecd 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6709,6 +6709,7 @@ EXPORT_SYMBOL_GPL(ata_id_c_string);
 EXPORT_SYMBOL_GPL(ata_do_dev_read_id);
 EXPORT_SYMBOL_GPL(ata_scsi_simulate);
 
+EXPORT_SYMBOL_GPL(ata_pio_queue_task);
 EXPORT_SYMBOL_GPL(ata_pio_need_iordy);
 EXPORT_SYMBOL_GPL(ata_timing_find_mode);
 EXPORT_SYMBOL_GPL(ata_timing_compute);
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index cea8014cd87e..89a1e0018e71 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -79,8 +79,6 @@ extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
 			   u64 block, u32 n_block, unsigned int tf_flags,
 			   unsigned int tag);
 extern u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev);
-extern void ata_pio_queue_task(struct ata_port *ap, void *data,
-			       unsigned long delay);
 extern void ata_port_flush_task(struct ata_port *ap);
 extern unsigned ata_exec_internal(struct ata_device *dev,
 				  struct ata_taskfile *tf, const u8 *cdb,
diff --git a/include/linux/libata.h b/include/linux/libata.h
index dc18b87ed722..19af7d22a7f8 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1008,6 +1008,9 @@ extern int ata_cable_sata(struct ata_port *ap);
 extern int ata_cable_ignore(struct ata_port *ap);
 extern int ata_cable_unknown(struct ata_port *ap);
 
+extern void ata_pio_queue_task(struct ata_port *ap, void *data,
+			       unsigned long delay);
+
 /* Timing helpers */
 extern unsigned int ata_pio_need_iordy(const struct ata_device *);
 extern const struct ata_timing *ata_timing_find_mode(u8 xfer_mode);
-- 
cgit v1.2.3


From 22ddbd1e036ce035c1cccb2496aefafac79aba2c Mon Sep 17 00:00:00 2001
From: Erik Inge Bolsø <knan-lkml@anduin.net>
Date: Sat, 14 Mar 2009 21:37:48 +0100
Subject: include/linux/ata.h: add some more transfer masks
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Erik Inge Bolsø <knan-lkml@anduin.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 include/linux/ata.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'include')

diff --git a/include/linux/ata.h b/include/linux/ata.h
index 9a061accd8b8..3901b0022cda 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -108,6 +108,8 @@ enum {
 	ATA_PIO5		= ATA_PIO4 | (1 << 5),
 	ATA_PIO6		= ATA_PIO5 | (1 << 6),
 
+	ATA_PIO4_ONLY		= (1 << 4),
+
 	ATA_SWDMA0		= (1 << 0),
 	ATA_SWDMA1		= ATA_SWDMA0 | (1 << 1),
 	ATA_SWDMA2		= ATA_SWDMA1 | (1 << 2),
@@ -117,6 +119,8 @@ enum {
 	ATA_MWDMA0		= (1 << 0),
 	ATA_MWDMA1		= ATA_MWDMA0 | (1 << 1),
 	ATA_MWDMA2		= ATA_MWDMA1 | (1 << 2),
+	ATA_MWDMA3		= ATA_MWDMA2 | (1 << 3),
+	ATA_MWDMA4		= ATA_MWDMA3 | (1 << 4),
 
 	ATA_MWDMA12_ONLY	= (1 << 1) | (1 << 2),
 	ATA_MWDMA2_ONLY		= (1 << 2),
@@ -131,6 +135,8 @@ enum {
 	ATA_UDMA7		= ATA_UDMA6 | (1 << 7),
 	/* ATA_UDMA7 is just for completeness... doesn't exist (yet?).  */
 
+	ATA_UDMA24_ONLY		= (1 << 2) | (1 << 4),
+
 	ATA_UDMA_MASK_40C	= ATA_UDMA2,	/* udma0-2 */
 
 	/* DMA-related */
-- 
cgit v1.2.3


From 3d47aa8e7e7b2aa09256590388aa8dddc79280f9 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@redhat.com>
Date: Tue, 24 Mar 2009 10:23:19 +0000
Subject: [libata] Drain data on errors

If the device is signalling that there is data to drain after an error we
should read the bytes out and throw them away. Without this some devices
and controllers get wedged and don't recover.

Based on earlier work by Mark Lord

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/libata-sff.c  | 45 +++++++++++++++++++++++++++++++++++++++++++--
 drivers/ata/pata_pcmcia.c | 34 +++++++++++++++++++++++++++++++++-
 include/linux/libata.h    |  3 +++
 3 files changed, 79 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index f93dc029dfde..9a10cb055ac2 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -52,6 +52,7 @@ const struct ata_port_operations ata_sff_port_ops = {
 	.softreset		= ata_sff_softreset,
 	.hardreset		= sata_sff_hardreset,
 	.postreset		= ata_sff_postreset,
+	.drain_fifo		= ata_sff_drain_fifo,
 	.error_handler		= ata_sff_error_handler,
 	.post_internal_cmd	= ata_sff_post_internal_cmd,
 
@@ -2198,6 +2199,39 @@ void ata_sff_postreset(struct ata_link *link, unsigned int *classes)
 }
 EXPORT_SYMBOL_GPL(ata_sff_postreset);
 
+/**
+ *	ata_sff_drain_fifo - Stock FIFO drain logic for SFF controllers
+ *	@qc: command
+ *
+ *	Drain the FIFO and device of any stuck data following a command
+ *	failing to complete. In some cases this is neccessary before a
+ *	reset will recover the device.
+ *
+ */
+
+void ata_sff_drain_fifo(struct ata_queued_cmd *qc)
+{
+	int count;
+	struct ata_port *ap;
+
+	/* We only need to flush incoming data when a command was running */
+	if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
+		return;
+
+	ap = qc->ap;
+	/* Drain up to 64K of data before we give up this recovery method */
+	for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
+						&& count < 32768; count++)
+		ioread16(ap->ioaddr.data_addr);
+
+	/* Can become DEBUG later */
+	if (count)
+		ata_port_printk(ap, KERN_DEBUG,
+			"drained %d bytes to clear DRQ.\n", count);
+
+}
+EXPORT_SYMBOL_GPL(ata_sff_drain_fifo);
+
 /**
  *	ata_sff_error_handler - Stock error handler for BMDMA controller
  *	@ap: port to handle error for
@@ -2239,7 +2273,8 @@ void ata_sff_error_handler(struct ata_port *ap)
 		 * really a timeout event, adjust error mask and
 		 * cancel frozen state.
 		 */
-		if (qc->err_mask == AC_ERR_TIMEOUT && (host_stat & ATA_DMA_ERR)) {
+		if (qc->err_mask == AC_ERR_TIMEOUT
+						&& (host_stat & ATA_DMA_ERR)) {
 			qc->err_mask = AC_ERR_HOST_BUS;
 			thaw = 1;
 		}
@@ -2250,6 +2285,13 @@ void ata_sff_error_handler(struct ata_port *ap)
 	ata_sff_sync(ap);		/* FIXME: We don't need this */
 	ap->ops->sff_check_status(ap);
 	ap->ops->sff_irq_clear(ap);
+	/* We *MUST* do FIFO draining before we issue a reset as several
+	 * devices helpfully clear their internal state and will lock solid
+	 * if we touch the data port post reset. Pass qc in case anyone wants
+	 *  to do different PIO/DMA recovery or has per command fixups
+	 */
+	if (ap->ops->drain_fifo)
+		ap->ops->drain_fifo(qc);
 
 	spin_unlock_irqrestore(ap->lock, flags);
 
@@ -2959,4 +3001,3 @@ out:
 EXPORT_SYMBOL_GPL(ata_pci_sff_init_one);
 
 #endif /* CONFIG_PCI */
-
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index a5cbcc280b23..f4d009ed50ac 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -42,7 +42,7 @@
 
 
 #define DRV_NAME "pata_pcmcia"
-#define DRV_VERSION "0.3.3"
+#define DRV_VERSION "0.3.5"
 
 /*
  *	Private data structure to glue stuff together
@@ -126,6 +126,37 @@ static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
 	return buflen;
 }
 
+/**
+ *	pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers
+ *	@qc: command
+ *
+ *	Drain the FIFO and device of any stuck data following a command
+ *	failing to complete. In some cases this is neccessary before a
+ *	reset will recover the device.
+ *
+ */
+ 
+void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
+{
+	int count;
+	struct ata_port *ap;
+
+	/* We only need to flush incoming data when a command was running */
+	if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
+		return;
+
+	ap = qc->ap;
+
+	/* Drain up to 64K of data before we give up this recovery method */
+	for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
+							&& count++ < 65536;)
+		ioread8(ap->ioaddr.data_addr);
+
+	if (count)
+		ata_port_printk(ap, KERN_WARNING, "drained %d bytes to clear DRQ.\n",
+								count);
+
+}
 
 static struct scsi_host_template pcmcia_sht = {
 	ATA_PIO_SHT(DRV_NAME),
@@ -143,6 +174,7 @@ static struct ata_port_operations pcmcia_8bit_port_ops = {
 	.sff_data_xfer	= ata_data_xfer_8bit,
 	.cable_detect	= ata_cable_40wire,
 	.set_mode	= pcmcia_set_mode_8bit,
+	.drain_fifo	= pcmcia_8bit_drain_fifo,
 };
 
 #define CS_CHECK(fn, ret) \
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 19af7d22a7f8..3a07a32dfc2e 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -836,6 +836,8 @@ struct ata_port_operations {
 	void (*bmdma_start)(struct ata_queued_cmd *qc);
 	void (*bmdma_stop)(struct ata_queued_cmd *qc);
 	u8   (*bmdma_status)(struct ata_port *ap);
+
+	void (*drain_fifo)(struct ata_queued_cmd *qc);
 #endif /* CONFIG_ATA_SFF */
 
 	ssize_t (*em_show)(struct ata_port *ap, char *buf);
@@ -1587,6 +1589,7 @@ extern int ata_sff_softreset(struct ata_link *link, unsigned int *classes,
 extern int sata_sff_hardreset(struct ata_link *link, unsigned int *class,
 			       unsigned long deadline);
 extern void ata_sff_postreset(struct ata_link *link, unsigned int *classes);
+extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc);
 extern void ata_sff_error_handler(struct ata_port *ap);
 extern void ata_sff_post_internal_cmd(struct ata_queued_cmd *qc);
 extern int ata_sff_port_start(struct ata_port *ap);
-- 
cgit v1.2.3


From b2f5e7cd3dee2ed721bf0675e1a1ddebb849aee6 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Tue, 24 Mar 2009 16:24:51 +0000
Subject: ipv6: Fix conflict resolutions during ipv6 binding

The ipv6 version of bind_conflict code calls ipv6_rcv_saddr_equal()
which at times wrongly identified intersections between addresses.
It particularly broke down under a few instances and caused erroneous
bind conflicts.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/addrconf.h |  4 ++--
 include/net/udp.h      |  2 ++
 net/ipv4/udp.c         |  3 ++-
 net/ipv6/addrconf.c    | 34 ----------------------------------
 net/ipv6/udp.c         | 28 ++++++++++++++++++++++++++++
 5 files changed, 34 insertions(+), 37 deletions(-)

(limited to 'include')

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index c216de528b08..7b55ab215a64 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -88,8 +88,8 @@ extern int			ipv6_dev_get_saddr(struct net *net,
 extern int			ipv6_get_lladdr(struct net_device *dev,
 						struct in6_addr *addr,
 						unsigned char banned_flags);
-extern int			ipv6_rcv_saddr_equal(const struct sock *sk, 
-						      const struct sock *sk2);
+extern int 			ipv6_rcv_saddr_equal(const struct sock *sk,
+						    const struct sock *sk2);
 extern void			addrconf_join_solict(struct net_device *dev,
 					struct in6_addr *addr);
 extern void			addrconf_leave_solict(struct inet6_dev *idev,
diff --git a/include/net/udp.h b/include/net/udp.h
index 90e6ce56be65..93dbe294d459 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -124,6 +124,8 @@ static inline void udp_lib_close(struct sock *sk, long timeout)
 	sk_common_release(sk);
 }
 
+extern int	ipv4_rcv_saddr_equal(const struct sock *sk1,
+				    const struct sock *sk2);
 extern int	udp_lib_get_port(struct sock *sk, unsigned short snum,
 		int (*)(const struct sock*,const struct sock*));
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 05b7abb99f69..ace2ac8a42f7 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -222,7 +222,7 @@ fail:
 	return error;
 }
 
-static int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
+int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
 {
 	struct inet_sock *inet1 = inet_sk(sk1), *inet2 = inet_sk(sk2);
 
@@ -1819,6 +1819,7 @@ EXPORT_SYMBOL(udp_lib_getsockopt);
 EXPORT_SYMBOL(udp_lib_setsockopt);
 EXPORT_SYMBOL(udp_poll);
 EXPORT_SYMBOL(udp_lib_get_port);
+EXPORT_SYMBOL(ipv4_rcv_saddr_equal);
 
 #ifdef CONFIG_PROC_FS
 EXPORT_SYMBOL(udp_proc_register);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 8499da9e76a2..a8218bc1806a 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1370,40 +1370,6 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add
 	return ifp;
 }
 
-int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
-{
-	const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
-	const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
-	__be32 sk_rcv_saddr = inet_sk(sk)->rcv_saddr;
-	__be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
-	int sk_ipv6only = ipv6_only_sock(sk);
-	int sk2_ipv6only = inet_v6_ipv6only(sk2);
-	int addr_type = ipv6_addr_type(sk_rcv_saddr6);
-	int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED;
-
-	if (!sk2_rcv_saddr && !sk_ipv6only)
-		return 1;
-
-	if (addr_type2 == IPV6_ADDR_ANY &&
-	    !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED))
-		return 1;
-
-	if (addr_type == IPV6_ADDR_ANY &&
-	    !(sk_ipv6only && addr_type2 == IPV6_ADDR_MAPPED))
-		return 1;
-
-	if (sk2_rcv_saddr6 &&
-	    ipv6_addr_equal(sk_rcv_saddr6, sk2_rcv_saddr6))
-		return 1;
-
-	if (addr_type == IPV6_ADDR_MAPPED &&
-	    !sk2_ipv6only &&
-	    (!sk2_rcv_saddr || !sk_rcv_saddr || sk_rcv_saddr == sk2_rcv_saddr))
-		return 1;
-
-	return 0;
-}
-
 /* Gets referenced address, destroys ifaddr */
 
 static void addrconf_dad_stop(struct inet6_ifaddr *ifp)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 84b1a296eecb..6842dd2edd5b 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -49,6 +49,34 @@
 #include <linux/seq_file.h>
 #include "udp_impl.h"
 
+int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
+{
+	const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
+	const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
+	int sk_ipv6only = ipv6_only_sock(sk);
+	int sk2_ipv6only = inet_v6_ipv6only(sk2);
+	int addr_type = ipv6_addr_type(sk_rcv_saddr6);
+	int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED;
+
+	/* if both are mapped, treat as IPv4 */
+	if (addr_type == IPV6_ADDR_MAPPED && addr_type2 == IPV6_ADDR_MAPPED)
+		return ipv4_rcv_saddr_equal(sk, sk2);
+
+	if (addr_type2 == IPV6_ADDR_ANY &&
+	    !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED))
+		return 1;
+
+	if (addr_type == IPV6_ADDR_ANY &&
+	    !(sk_ipv6only && addr_type2 == IPV6_ADDR_MAPPED))
+		return 1;
+
+	if (sk2_rcv_saddr6 &&
+	    ipv6_addr_equal(sk_rcv_saddr6, sk2_rcv_saddr6))
+		return 1;
+
+	return 0;
+}
+
 int udp_v6_get_port(struct sock *sk, unsigned short snum)
 {
 	return udp_lib_get_port(sk, snum, ipv6_rcv_saddr_equal);
-- 
cgit v1.2.3


From c96f1732e25362d10ee7bcac1df8412a2e6b7d23 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@redhat.com>
Date: Tue, 24 Mar 2009 10:23:46 +0000
Subject: [libata] Improve timeout handling

On a timeout call a device specific handler early in the recovery so that
we can complete and process successful commands which timed out due to IRQ
loss or the like rather more elegantly.

[Revised to exclude the timeout handling on a few devices that inherit from
 SFF but are not SFF enough to use the default timeout handler]

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/libata-eh.c    | 19 +++++++++++++++++--
 drivers/ata/libata-sff.c   | 46 +++++++++++++++++++++++++++++++++++++++++++++-
 drivers/ata/pata_isapnp.c  | 12 ++++++++++--
 drivers/ata/pdc_adma.c     |  2 ++
 drivers/ata/sata_mv.c      |  2 ++
 drivers/ata/sata_nv.c      |  1 +
 drivers/ata/sata_promise.c |  2 ++
 drivers/ata/sata_qstor.c   |  1 +
 drivers/ata/sata_vsc.c     |  3 +++
 include/linux/libata.h     |  2 ++
 10 files changed, 85 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index ea890911d4fa..01831312c360 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -547,7 +547,7 @@ void ata_scsi_error(struct Scsi_Host *host)
 
 	/* For new EH, all qcs are finished in one of three ways -
 	 * normal completion, error completion, and SCSI timeout.
-	 * Both cmpletions can race against SCSI timeout.  When normal
+	 * Both completions can race against SCSI timeout.  When normal
 	 * completion wins, the qc never reaches EH.  When error
 	 * completion wins, the qc has ATA_QCFLAG_FAILED set.
 	 *
@@ -562,7 +562,19 @@ void ata_scsi_error(struct Scsi_Host *host)
 		int nr_timedout = 0;
 
 		spin_lock_irqsave(ap->lock, flags);
-
+		
+		/* This must occur under the ap->lock as we don't want
+		   a polled recovery to race the real interrupt handler
+		   
+		   The lost_interrupt handler checks for any completed but
+		   non-notified command and completes much like an IRQ handler.
+		   
+		   We then fall into the error recovery code which will treat
+		   this as if normal completion won the race */
+
+		if (ap->ops->lost_interrupt)
+			ap->ops->lost_interrupt(ap);
+			
 		list_for_each_entry_safe(scmd, tmp, &host->eh_cmd_q, eh_entry) {
 			struct ata_queued_cmd *qc;
 
@@ -606,6 +618,9 @@ void ata_scsi_error(struct Scsi_Host *host)
 		ap->eh_tries = ATA_EH_MAX_TRIES;
 	} else
 		spin_unlock_wait(ap->lock);
+		
+	/* If we timed raced normal completion and there is nothing to
+	   recover nr_timedout == 0 why exactly are we doing error recovery ? */
 
  repeat:
 	/* invoke error handler */
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 9a10cb055ac2..8332e97a9de3 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -65,6 +65,8 @@ const struct ata_port_operations ata_sff_port_ops = {
 	.sff_irq_on		= ata_sff_irq_on,
 	.sff_irq_clear		= ata_sff_irq_clear,
 
+	.lost_interrupt		= ata_sff_lost_interrupt,
+
 	.port_start		= ata_sff_port_start,
 };
 EXPORT_SYMBOL_GPL(ata_sff_port_ops);
@@ -1647,7 +1649,7 @@ EXPORT_SYMBOL_GPL(ata_sff_qc_fill_rtf);
  *	RETURNS:
  *	One if interrupt was handled, zero if not (shared irq).
  */
-inline unsigned int ata_sff_host_intr(struct ata_port *ap,
+unsigned int ata_sff_host_intr(struct ata_port *ap,
 				      struct ata_queued_cmd *qc)
 {
 	struct ata_eh_info *ehi = &ap->link.eh_info;
@@ -1775,6 +1777,48 @@ irqreturn_t ata_sff_interrupt(int irq, void *dev_instance)
 }
 EXPORT_SYMBOL_GPL(ata_sff_interrupt);
 
+/**
+ *	ata_sff_lost_interrupt	-	Check for an apparent lost interrupt
+ *	@ap: port that appears to have timed out
+ *
+ *	Called from the libata error handlers when the core code suspects
+ *	an interrupt has been lost. If it has complete anything we can and
+ *	then return. Interface must support altstatus for this faster
+ *	recovery to occur.
+ *
+ *	Locking:
+ *	Caller holds host lock
+ */
+
+void ata_sff_lost_interrupt(struct ata_port *ap)
+{
+	u8 status;
+	struct ata_queued_cmd *qc;
+
+	/* Only one outstanding command per SFF channel */
+	qc = ata_qc_from_tag(ap, ap->link.active_tag);
+	/* Check we have a live one.. */
+	if (qc == NULL ||  !(qc->flags & ATA_QCFLAG_ACTIVE))
+		return;
+	/* We cannot lose an interrupt on a polled command */
+	if (qc->tf.flags & ATA_TFLAG_POLLING)
+		return;
+	/* See if the controller thinks it is still busy - if so the command
+	   isn't a lost IRQ but is still in progress */
+	status = ata_sff_altstatus(ap);
+	if (status & ATA_BUSY)
+		return;
+
+	/* There was a command running, we are no longer busy and we have
+	   no interrupt. */
+	ata_port_printk(ap, KERN_WARNING, "lost interrupt (Status 0x%x)\n",
+								status);
+	/* Run the host interrupt logic as if the interrupt had not been
+	   lost */
+	ata_sff_host_intr(ap, qc);
+}
+EXPORT_SYMBOL_GPL(ata_sff_lost_interrupt);
+
 /**
  *	ata_sff_freeze - Freeze SFF controller port
  *	@ap: port to freeze
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index afa8f704271e..4bceb8803a10 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -17,7 +17,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME "pata_isapnp"
-#define DRV_VERSION "0.2.2"
+#define DRV_VERSION "0.2.5"
 
 static struct scsi_host_template isapnp_sht = {
 	ATA_PIO_SHT(DRV_NAME),
@@ -28,6 +28,13 @@ static struct ata_port_operations isapnp_port_ops = {
 	.cable_detect	= ata_cable_40wire,
 };
 
+static struct ata_port_operations isapnp_noalt_port_ops = {
+	.inherits	= &ata_sff_port_ops,
+	.cable_detect	= ata_cable_40wire,
+	/* No altstatus so we don't want to use the lost interrupt poll */
+	.lost_interrupt = ATA_OP_NULL,
+};
+
 /**
  *	isapnp_init_one		-	attach an isapnp interface
  *	@idev: PnP device
@@ -65,7 +72,7 @@ static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev
 
 	ap = host->ports[0];
 
-	ap->ops = &isapnp_port_ops;
+	ap->ops = &isapnp_noalt_port_ops;
 	ap->pio_mask = ATA_PIO0;
 	ap->flags |= ATA_FLAG_SLAVE_POSS;
 
@@ -76,6 +83,7 @@ static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev
 					   pnp_port_start(idev, 1), 1);
 		ap->ioaddr.altstatus_addr = ctl_addr;
 		ap->ioaddr.ctl_addr = ctl_addr;
+		ap->ops = &isapnp_port_ops;
 	}
 
 	ata_sff_std_ports(&ap->ioaddr);
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
index c509c206a459..39588178d028 100644
--- a/drivers/ata/pdc_adma.c
+++ b/drivers/ata/pdc_adma.c
@@ -148,6 +148,8 @@ static struct scsi_host_template adma_ata_sht = {
 static struct ata_port_operations adma_ata_ops = {
 	.inherits		= &ata_sff_port_ops,
 
+	.lost_interrupt		= ATA_OP_NULL,
+
 	.check_atapi_dma	= adma_check_atapi_dma,
 	.qc_prep		= adma_qc_prep,
 	.qc_issue		= adma_qc_issue,
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 8a751054c8a1..a377226b81c8 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -646,6 +646,8 @@ static struct scsi_host_template mv6_sht = {
 static struct ata_port_operations mv5_ops = {
 	.inherits		= &ata_sff_port_ops,
 
+	.lost_interrupt		= ATA_OP_NULL,
+
 	.qc_defer		= mv_qc_defer,
 	.qc_prep		= mv_qc_prep,
 	.qc_issue		= mv_qc_issue,
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 2f523f8c27f6..6cda12ba8122 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -408,6 +408,7 @@ static struct scsi_host_template nv_swncq_sht = {
 
 static struct ata_port_operations nv_common_ops = {
 	.inherits		= &ata_bmdma_port_ops,
+	.lost_interrupt		= ATA_OP_NULL,
 	.scr_read		= nv_scr_read,
 	.scr_write		= nv_scr_write,
 };
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 3ad2b8863636..b1fd7d62071a 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -176,7 +176,9 @@ static const struct ata_port_operations pdc_common_ops = {
 	.check_atapi_dma	= pdc_check_atapi_dma,
 	.qc_prep		= pdc_qc_prep,
 	.qc_issue		= pdc_qc_issue,
+
 	.sff_irq_clear		= pdc_irq_clear,
+	.lost_interrupt		= ATA_OP_NULL,
 
 	.post_internal_cmd	= pdc_post_internal_cmd,
 	.error_handler		= pdc_error_handler,
diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c
index 7112d89fd9ff..c3936d35cdac 100644
--- a/drivers/ata/sata_qstor.c
+++ b/drivers/ata/sata_qstor.c
@@ -147,6 +147,7 @@ static struct ata_port_operations qs_ata_ops = {
 	.softreset		= ATA_OP_NULL,
 	.error_handler		= qs_error_handler,
 	.post_internal_cmd	= ATA_OP_NULL,
+	.lost_interrupt		= ATA_OP_NULL,
 
 	.scr_read		= qs_scr_read,
 	.scr_write		= qs_scr_write,
diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
index ef211f333d7b..ed70bd28fa2c 100644
--- a/drivers/ata/sata_vsc.c
+++ b/drivers/ata/sata_vsc.c
@@ -308,6 +308,9 @@ static struct scsi_host_template vsc_sata_sht = {
 
 static struct ata_port_operations vsc_sata_ops = {
 	.inherits		= &ata_bmdma_port_ops,
+	/* The IRQ handling is not quite standard SFF behaviour so we
+	   cannot use the default lost interrupt handler */
+	.lost_interrupt		= ATA_OP_NULL,
 	.sff_tf_load		= vsc_sata_tf_load,
 	.sff_tf_read		= vsc_sata_tf_read,
 	.freeze			= vsc_freeze,
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 3a07a32dfc2e..76262d83656b 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -795,6 +795,7 @@ struct ata_port_operations {
 	ata_reset_fn_t		pmp_hardreset;
 	ata_postreset_fn_t	pmp_postreset;
 	void (*error_handler)(struct ata_port *ap);
+	void (*lost_interrupt)(struct ata_port *ap);
 	void (*post_internal_cmd)(struct ata_queued_cmd *qc);
 
 	/*
@@ -1577,6 +1578,7 @@ extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc);
 extern unsigned int ata_sff_host_intr(struct ata_port *ap,
 				      struct ata_queued_cmd *qc);
 extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance);
+extern void ata_sff_lost_interrupt(struct ata_port *ap);
 extern void ata_sff_freeze(struct ata_port *ap);
 extern void ata_sff_thaw(struct ata_port *ap);
 extern int ata_sff_prereset(struct ata_link *link, unsigned long deadline);
-- 
cgit v1.2.3


From 67fca028f1535e510689d2e444b0289e264e05c1 Mon Sep 17 00:00:00 2001
From: Daniel Mack <daniel@caiaq.de>
Date: Tue, 24 Mar 2009 23:32:03 -0700
Subject: ax88796: Add method to take MAC from platform data

Implement a way to provide the MAC address for ax88796 devices from
their platform data. Boards might decide to set the address
programmatically, taken from boot tags or other sources.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ax88796.c | 17 ++++++++++++-----
 include/net/ax88796.h | 13 ++++++++-----
 2 files changed, 20 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/drivers/net/ax88796.c b/drivers/net/ax88796.c
index e7c9748437d4..62d9c9cc5671 100644
--- a/drivers/net/ax88796.c
+++ b/drivers/net/ax88796.c
@@ -733,12 +733,19 @@ static int ax_init_dev(struct net_device *dev, int first_init)
 	/* load the mac-address from the device if this is the
 	 * first time we've initialised */
 
-	if (first_init && ax->plat->flags & AXFLG_MAC_FROMDEV) {
-		ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
-			ei_local->mem + E8390_CMD); /* 0x61 */
+	if (first_init) {
+		if (ax->plat->flags & AXFLG_MAC_FROMDEV) {
+			ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
+				ei_local->mem + E8390_CMD); /* 0x61 */
+			for (i = 0; i < ETHER_ADDR_LEN; i++)
+				dev->dev_addr[i] =
+					ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
+		}
 
-		for (i = 0 ; i < ETHER_ADDR_LEN ; i++)
-			dev->dev_addr[i] = ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
+		if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) &&
+		     ax->plat->mac_addr)
+			memcpy(dev->dev_addr, ax->plat->mac_addr,
+				ETHER_ADDR_LEN);
 	}
 
 	ax_reset_8390(dev);
diff --git a/include/net/ax88796.h b/include/net/ax88796.h
index 51329dae44e6..b9a3beca0ce4 100644
--- a/include/net/ax88796.h
+++ b/include/net/ax88796.h
@@ -15,14 +15,17 @@
 #define AXFLG_HAS_EEPROM		(1<<0)
 #define AXFLG_MAC_FROMDEV		(1<<1)	/* device already has MAC */
 #define AXFLG_HAS_93CX6			(1<<2)	/* use eeprom_93cx6 driver */
+#define AXFLG_MAC_FROMPLATFORM		(1<<3)	/* MAC given by platform data */
 
 struct ax_plat_data {
 	unsigned int	 flags;
-	unsigned char	 wordlength;		/* 1 or 2 */
-	unsigned char	 dcr_val;		/* default value for DCR */
-	unsigned char	 rcr_val;		/* default value for RCR */
-	unsigned char	 gpoc_val;		/* default value for GPOC */
-	u32		*reg_offsets;		/* register offsets */
+	unsigned char	 wordlength;	/* 1 or 2 */
+	unsigned char	 dcr_val;	/* default value for DCR */
+	unsigned char	 rcr_val;	/* default value for RCR */
+	unsigned char	 gpoc_val;	/* default value for GPOC */
+	u32		*reg_offsets;	/* register offsets */
+	u8		*mac_addr;	/* MAC addr (only used when
+					   AXFLG_MAC_FROMPLATFORM is used */
 };
 
 #endif /* __NET_AX88796_PLAT_H */
-- 
cgit v1.2.3


From b8dfe498775de912116f275680ddb57c8799d9ef Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Wed, 25 Mar 2009 17:31:52 +0100
Subject: netfilter: factorize ifname_compare()

We use same not trivial helper function in four places. We can factorize it.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/linux/netfilter/x_tables.h | 23 +++++++++++++++++++++++
 net/ipv4/netfilter/arp_tables.c    | 14 +-------------
 net/ipv4/netfilter/ip_tables.c     | 23 ++---------------------
 net/ipv6/netfilter/ip6_tables.c    | 23 ++---------------------
 net/netfilter/xt_physdev.c         | 21 ++-------------------
 5 files changed, 30 insertions(+), 74 deletions(-)

(limited to 'include')

diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index e8e08d036752..72918b7cbe85 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -435,6 +435,29 @@ extern void xt_free_table_info(struct xt_table_info *info);
 extern void xt_table_entry_swap_rcu(struct xt_table_info *old,
 				    struct xt_table_info *new);
 
+/*
+ * This helper is performance critical and must be inlined
+ */
+static inline unsigned long ifname_compare_aligned(const char *_a,
+						   const char *_b,
+						   const char *_mask)
+{
+	const unsigned long *a = (const unsigned long *)_a;
+	const unsigned long *b = (const unsigned long *)_b;
+	const unsigned long *mask = (const unsigned long *)_mask;
+	unsigned long ret;
+
+	ret = (a[0] ^ b[0]) & mask[0];
+	if (IFNAMSIZ > sizeof(unsigned long))
+		ret |= (a[1] ^ b[1]) & mask[1];
+	if (IFNAMSIZ > 2 * sizeof(unsigned long))
+		ret |= (a[2] ^ b[2]) & mask[2];
+	if (IFNAMSIZ > 3 * sizeof(unsigned long))
+		ret |= (a[3] ^ b[3]) & mask[3];
+	BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
+	return ret;
+}
+
 #ifdef CONFIG_COMPAT
 #include <net/compat.h>
 
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 64a7c6ce0b98..4b35dba7cf7d 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -80,19 +80,7 @@ static inline int arp_devaddr_compare(const struct arpt_devaddr_info *ap,
 static unsigned long ifname_compare(const char *_a, const char *_b, const char *_mask)
 {
 #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-	const unsigned long *a = (const unsigned long *)_a;
-	const unsigned long *b = (const unsigned long *)_b;
-	const unsigned long *mask = (const unsigned long *)_mask;
-	unsigned long ret;
-
-	ret = (a[0] ^ b[0]) & mask[0];
-	if (IFNAMSIZ > sizeof(unsigned long))
-		ret |= (a[1] ^ b[1]) & mask[1];
-	if (IFNAMSIZ > 2 * sizeof(unsigned long))
-		ret |= (a[2] ^ b[2]) & mask[2];
-	if (IFNAMSIZ > 3 * sizeof(unsigned long))
-		ret |= (a[3] ^ b[3]) & mask[3];
-	BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
+	unsigned long ret = ifname_compare_aligned(_a, _b, _mask);
 #else
 	unsigned long ret = 0;
 	int i;
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index e5294aec967d..41c59e391a6a 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -74,25 +74,6 @@ do {								\
 
    Hence the start of any table is given by get_table() below.  */
 
-static unsigned long ifname_compare(const char *_a, const char *_b,
-				    const unsigned char *_mask)
-{
-	const unsigned long *a = (const unsigned long *)_a;
-	const unsigned long *b = (const unsigned long *)_b;
-	const unsigned long *mask = (const unsigned long *)_mask;
-	unsigned long ret;
-
-	ret = (a[0] ^ b[0]) & mask[0];
-	if (IFNAMSIZ > sizeof(unsigned long))
-		ret |= (a[1] ^ b[1]) & mask[1];
-	if (IFNAMSIZ > 2 * sizeof(unsigned long))
-		ret |= (a[2] ^ b[2]) & mask[2];
-	if (IFNAMSIZ > 3 * sizeof(unsigned long))
-		ret |= (a[3] ^ b[3]) & mask[3];
-	BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
-	return ret;
-}
-
 /* Returns whether matches rule or not. */
 /* Performance critical - called for every packet */
 static inline bool
@@ -121,7 +102,7 @@ ip_packet_match(const struct iphdr *ip,
 		return false;
 	}
 
-	ret = ifname_compare(indev, ipinfo->iniface, ipinfo->iniface_mask);
+	ret = ifname_compare_aligned(indev, ipinfo->iniface, ipinfo->iniface_mask);
 
 	if (FWINV(ret != 0, IPT_INV_VIA_IN)) {
 		dprintf("VIA in mismatch (%s vs %s).%s\n",
@@ -130,7 +111,7 @@ ip_packet_match(const struct iphdr *ip,
 		return false;
 	}
 
-	ret = ifname_compare(outdev, ipinfo->outiface, ipinfo->outiface_mask);
+	ret = ifname_compare_aligned(outdev, ipinfo->outiface, ipinfo->outiface_mask);
 
 	if (FWINV(ret != 0, IPT_INV_VIA_OUT)) {
 		dprintf("VIA out mismatch (%s vs %s).%s\n",
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 34af7bb8df5f..e59662b3b5b9 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -89,25 +89,6 @@ ip6t_ext_hdr(u8 nexthdr)
 		 (nexthdr == IPPROTO_DSTOPTS) );
 }
 
-static unsigned long ifname_compare(const char *_a, const char *_b,
-				    const unsigned char *_mask)
-{
-	const unsigned long *a = (const unsigned long *)_a;
-	const unsigned long *b = (const unsigned long *)_b;
-	const unsigned long *mask = (const unsigned long *)_mask;
-	unsigned long ret;
-
-	ret = (a[0] ^ b[0]) & mask[0];
-	if (IFNAMSIZ > sizeof(unsigned long))
-		ret |= (a[1] ^ b[1]) & mask[1];
-	if (IFNAMSIZ > 2 * sizeof(unsigned long))
-		ret |= (a[2] ^ b[2]) & mask[2];
-	if (IFNAMSIZ > 3 * sizeof(unsigned long))
-		ret |= (a[3] ^ b[3]) & mask[3];
-	BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
-	return ret;
-}
-
 /* Returns whether matches rule or not. */
 /* Performance critical - called for every packet */
 static inline bool
@@ -138,7 +119,7 @@ ip6_packet_match(const struct sk_buff *skb,
 		return false;
 	}
 
-	ret = ifname_compare(indev, ip6info->iniface, ip6info->iniface_mask);
+	ret = ifname_compare_aligned(indev, ip6info->iniface, ip6info->iniface_mask);
 
 	if (FWINV(ret != 0, IP6T_INV_VIA_IN)) {
 		dprintf("VIA in mismatch (%s vs %s).%s\n",
@@ -147,7 +128,7 @@ ip6_packet_match(const struct sk_buff *skb,
 		return false;
 	}
 
-	ret = ifname_compare(outdev, ip6info->outiface, ip6info->outiface_mask);
+	ret = ifname_compare_aligned(outdev, ip6info->outiface, ip6info->outiface_mask);
 
 	if (FWINV(ret != 0, IP6T_INV_VIA_OUT)) {
 		dprintf("VIA out mismatch (%s vs %s).%s\n",
diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c
index 44a234ef4439..8d28ca5848bc 100644
--- a/net/netfilter/xt_physdev.c
+++ b/net/netfilter/xt_physdev.c
@@ -20,23 +20,6 @@ MODULE_DESCRIPTION("Xtables: Bridge physical device match");
 MODULE_ALIAS("ipt_physdev");
 MODULE_ALIAS("ip6t_physdev");
 
-static unsigned long ifname_compare(const char *_a, const char *_b, const char *_mask)
-{
-	const unsigned long *a = (const unsigned long *)_a;
-	const unsigned long *b = (const unsigned long *)_b;
-	const unsigned long *mask = (const unsigned long *)_mask;
-	unsigned long ret;
-
-	ret = (a[0] ^ b[0]) & mask[0];
-	if (IFNAMSIZ > sizeof(unsigned long))
-		ret |= (a[1] ^ b[1]) & mask[1];
-	if (IFNAMSIZ > 2 * sizeof(unsigned long))
-		ret |= (a[2] ^ b[2]) & mask[2];
-	if (IFNAMSIZ > 3 * sizeof(unsigned long))
-		ret |= (a[3] ^ b[3]) & mask[3];
-	BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long));
-	return ret;
-}
 
 static bool
 physdev_mt(const struct sk_buff *skb, const struct xt_match_param *par)
@@ -85,7 +68,7 @@ physdev_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	if (!(info->bitmask & XT_PHYSDEV_OP_IN))
 		goto match_outdev;
 	indev = nf_bridge->physindev ? nf_bridge->physindev->name : nulldevname;
-	ret = ifname_compare(indev, info->physindev, info->in_mask);
+	ret = ifname_compare_aligned(indev, info->physindev, info->in_mask);
 
 	if (!ret ^ !(info->invert & XT_PHYSDEV_OP_IN))
 		return false;
@@ -95,7 +78,7 @@ match_outdev:
 		return true;
 	outdev = nf_bridge->physoutdev ?
 		 nf_bridge->physoutdev->name : nulldevname;
-	ret = ifname_compare(outdev, info->physoutdev, info->out_mask);
+	ret = ifname_compare_aligned(outdev, info->physoutdev, info->out_mask);
 
 	return (!!ret ^ !(info->invert & XT_PHYSDEV_OP_OUT));
 }
-- 
cgit v1.2.3


From d0dba7255b541f1651a88e75ebdb20dd45509c2f Mon Sep 17 00:00:00 2001
From: Holger Eitzenberger <holger@eitzenberger.org>
Date: Wed, 25 Mar 2009 18:24:48 +0100
Subject: netfilter: ctnetlink: add callbacks to the per-proto nlattrs

There is added a single callback for the l3 proto helper.  The two
callbacks for the l4 protos are necessary because of the general
structure of a ctnetlink event, which is in short:

 CTA_TUPLE_ORIG
   <l3/l4-proto-attributes>
 CTA_TUPLE_REPLY
   <l3/l4-proto-attributes>
 CTA_ID
 ...
 CTA_PROTOINFO
   <l4-proto-attributes>
 CTA_TUPLE_MASTER
   <l3/l4-proto-attributes>

Therefore the formular is

 size := sizeof(generic-nlas) + 3 * sizeof(tuple_nlas) + sizeof(protoinfo_nlas)

Some of the NLAs are optional, e. g. CTA_TUPLE_MASTER, which is only
set if it's an expected connection.  But the number of optional NLAs is
small enough to prevent netlink_trim() from reallocating if calculated
properly.

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_conntrack_l3proto.h |  7 +++++++
 include/net/netfilter/nf_conntrack_l4proto.h |  6 ++++++
 net/netfilter/nf_conntrack_proto.c           | 16 ++++++++++++++++
 3 files changed, 29 insertions(+)

(limited to 'include')

diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h
index 0378676c3dd8..9f99d36d5de9 100644
--- a/include/net/netfilter/nf_conntrack_l3proto.h
+++ b/include/net/netfilter/nf_conntrack_l3proto.h
@@ -53,10 +53,17 @@ struct nf_conntrack_l3proto
 	int (*tuple_to_nlattr)(struct sk_buff *skb,
 			       const struct nf_conntrack_tuple *t);
 
+	/*
+	 * Calculate size of tuple nlattr
+	 */
+	int (*nlattr_tuple_size)(void);
+
 	int (*nlattr_to_tuple)(struct nlattr *tb[],
 			       struct nf_conntrack_tuple *t);
 	const struct nla_policy *nla_policy;
 
+	size_t nla_size;
+
 #ifdef CONFIG_SYSCTL
 	struct ctl_table_header	*ctl_table_header;
 	struct ctl_path		*ctl_table_path;
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index b01070bf2f84..a120990b3b2b 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -64,16 +64,22 @@ struct nf_conntrack_l4proto
 	/* convert protoinfo to nfnetink attributes */
 	int (*to_nlattr)(struct sk_buff *skb, struct nlattr *nla,
 			 const struct nf_conn *ct);
+	/* Calculate protoinfo nlattr size */
+	int (*nlattr_size)(void);
 
 	/* convert nfnetlink attributes to protoinfo */
 	int (*from_nlattr)(struct nlattr *tb[], struct nf_conn *ct);
 
 	int (*tuple_to_nlattr)(struct sk_buff *skb,
 			       const struct nf_conntrack_tuple *t);
+	/* Calculate tuple nlattr size */
+	int (*nlattr_tuple_size)(void);
 	int (*nlattr_to_tuple)(struct nlattr *tb[],
 			       struct nf_conntrack_tuple *t);
 	const struct nla_policy *nla_policy;
 
+	size_t nla_size;
+
 #ifdef CONFIG_SYSCTL
 	struct ctl_table_header	**ctl_table_header;
 	struct ctl_table	*ctl_table;
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index 9a62b4efa0e1..1a4568bf7ea5 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -167,6 +167,9 @@ int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
 	if (proto->l3proto >= AF_MAX)
 		return -EBUSY;
 
+	if (proto->tuple_to_nlattr && !proto->nlattr_tuple_size)
+		return -EINVAL;
+
 	mutex_lock(&nf_ct_proto_mutex);
 	if (nf_ct_l3protos[proto->l3proto] != &nf_conntrack_l3proto_generic) {
 		ret = -EBUSY;
@@ -177,6 +180,9 @@ int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
 	if (ret < 0)
 		goto out_unlock;
 
+	if (proto->nlattr_tuple_size)
+		proto->nla_size = 3 * proto->nlattr_tuple_size();
+
 	rcu_assign_pointer(nf_ct_l3protos[proto->l3proto], proto);
 
 out_unlock:
@@ -263,6 +269,10 @@ int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto)
 	if (l4proto->l3proto >= PF_MAX)
 		return -EBUSY;
 
+	if ((l4proto->to_nlattr && !l4proto->nlattr_size)
+		|| (l4proto->tuple_to_nlattr && !l4proto->nlattr_tuple_size))
+		return -EINVAL;
+
 	mutex_lock(&nf_ct_proto_mutex);
 	if (!nf_ct_protos[l4proto->l3proto]) {
 		/* l3proto may be loaded latter. */
@@ -290,6 +300,12 @@ int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto)
 	if (ret < 0)
 		goto out_unlock;
 
+	l4proto->nla_size = 0;
+	if (l4proto->nlattr_size)
+		l4proto->nla_size += l4proto->nlattr_size();
+	if (l4proto->nlattr_tuple_size)
+		l4proto->nla_size += 3 * l4proto->nlattr_tuple_size();
+
 	rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto],
 			   l4proto);
 
-- 
cgit v1.2.3


From e487eb99cf9381a4f8254fa01747a85818da612b Mon Sep 17 00:00:00 2001
From: Holger Eitzenberger <holger@eitzenberger.org>
Date: Wed, 25 Mar 2009 18:26:30 +0100
Subject: netlink: add nla_policy_len()

It calculates the max. length of a Netlink policy, which is usefull
for allocating Netlink buffers roughly the size of the actual
message.

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netlink.h |  1 +
 net/netlink/attr.c    | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

(limited to 'include')

diff --git a/include/net/netlink.h b/include/net/netlink.h
index 8a6150a3f4c7..eddb50289d6d 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -230,6 +230,7 @@ extern int		nla_validate(struct nlattr *head, int len, int maxtype,
 extern int		nla_parse(struct nlattr *tb[], int maxtype,
 				  struct nlattr *head, int len,
 				  const struct nla_policy *policy);
+extern int		nla_policy_len(const struct nla_policy *, int);
 extern struct nlattr *	nla_find(struct nlattr *head, int len, int attrtype);
 extern size_t		nla_strlcpy(char *dst, const struct nlattr *nla,
 				    size_t dstsize);
diff --git a/net/netlink/attr.c b/net/netlink/attr.c
index 56c3ce7fe29a..ae32c573df00 100644
--- a/net/netlink/attr.c
+++ b/net/netlink/attr.c
@@ -132,6 +132,32 @@ errout:
 	return err;
 }
 
+/**
+ * nla_policy_len - Determin the max. length of a policy
+ * @policy: policy to use
+ * @n: number of policies
+ *
+ * Determines the max. length of the policy.  It is currently used
+ * to allocated Netlink buffers roughly the size of the actual
+ * message.
+ *
+ * Returns 0 on success or a negative error code.
+ */
+int
+nla_policy_len(const struct nla_policy *p, int n)
+{
+	int i, len = 0;
+
+	for (i = 0; i < n; i++) {
+		if (p->len)
+			len += nla_total_size(p->len);
+		else if (nla_attr_minlen[p->type])
+			len += nla_total_size(nla_attr_minlen[p->type]);
+	}
+
+	return len;
+}
+
 /**
  * nla_parse - Parse a stream of attributes into a tb buffer
  * @tb: destination array with maxtype+1 elements
@@ -456,6 +482,7 @@ int nla_append(struct sk_buff *skb, int attrlen, const void *data)
 }
 
 EXPORT_SYMBOL(nla_validate);
+EXPORT_SYMBOL(nla_policy_len);
 EXPORT_SYMBOL(nla_parse);
 EXPORT_SYMBOL(nla_find);
 EXPORT_SYMBOL(nla_strlcpy);
-- 
cgit v1.2.3


From af9d32ad6718b9a80fa89f557cc1fbb63a93ec15 Mon Sep 17 00:00:00 2001
From: Holger Eitzenberger <holger@eitzenberger.org>
Date: Wed, 25 Mar 2009 18:44:01 +0100
Subject: netfilter: limit the length of the helper name

This is necessary in order to have an upper bound for Netlink
message calculation, which is not a problem at all, as there
are no helpers with a longer name.

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_conntrack_helper.h | 2 ++
 net/netfilter/nf_conntrack_helper.c         | 1 +
 2 files changed, 3 insertions(+)

(limited to 'include')

diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index 66d65a7caa39..ee2a4b369a04 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -14,6 +14,8 @@
 
 struct module;
 
+#define NF_CT_HELPER_NAME_LEN	16
+
 struct nf_conntrack_helper
 {
 	struct hlist_node hnode;	/* Internal use. */
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index a51bdac9f3a0..805cfdd42303 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -142,6 +142,7 @@ int nf_conntrack_helper_register(struct nf_conntrack_helper *me)
 
 	BUG_ON(me->expect_policy == NULL);
 	BUG_ON(me->expect_class_max >= NF_CT_MAX_EXPECT_CLASSES);
+	BUG_ON(strlen(me->name) > NF_CT_HELPER_NAME_LEN - 1);
 
 	mutex_lock(&nf_ct_helper_mutex);
 	hlist_add_head_rcu(&me->hnode, &nf_ct_helper_hash[h]);
-- 
cgit v1.2.3


From ea781f197d6a835cbb93a0bf88ee1696296ed8aa Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Wed, 25 Mar 2009 21:05:46 +0100
Subject: netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of
 call_rcu()

Use "hlist_nulls" infrastructure we added in 2.6.29 for RCUification of UDP & TCP.

This permits an easy conversion from call_rcu() based hash lists to a
SLAB_DESTROY_BY_RCU one.

Avoiding call_rcu() delay at nf_conn freeing time has numerous gains.

First, it doesnt fill RCU queues (up to 10000 elements per cpu).
This reduces OOM possibility, if queued elements are not taken into account
This reduces latency problems when RCU queue size hits hilimit and triggers
emergency mode.

- It allows fast reuse of just freed elements, permitting better use of
CPU cache.

- We delete rcu_head from "struct nf_conn", shrinking size of this structure
by 8 or 16 bytes.

This patch only takes care of "struct nf_conn".
call_rcu() is still used for less critical conntrack parts, that may
be converted later if necessary.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_conntrack.h               |  14 ++-
 include/net/netfilter/nf_conntrack_tuple.h         |   6 +-
 include/net/netns/conntrack.h                      |   5 +-
 .../netfilter/nf_conntrack_l3proto_ipv4_compat.c   |  63 ++++++-----
 net/ipv4/netfilter/nf_nat_core.c                   |   2 +-
 net/netfilter/nf_conntrack_core.c                  | 123 ++++++++++++---------
 net/netfilter/nf_conntrack_expect.c                |   2 +-
 net/netfilter/nf_conntrack_helper.c                |   7 +-
 net/netfilter/nf_conntrack_netlink.c               |  20 ++--
 net/netfilter/nf_conntrack_standalone.c            |  57 ++++++----
 net/netfilter/xt_connlimit.c                       |   6 +-
 11 files changed, 174 insertions(+), 131 deletions(-)

(limited to 'include')

diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 4dfb793c3f15..6c3f964de9e1 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -91,8 +91,7 @@ struct nf_conn_help {
 #include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
 #include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
 
-struct nf_conn
-{
+struct nf_conn {
 	/* Usage count in here is 1 for hash table/destruct timer, 1 per skb,
            plus 1 for any connection(s) we are `master' for */
 	struct nf_conntrack ct_general;
@@ -126,7 +125,6 @@ struct nf_conn
 #ifdef CONFIG_NET_NS
 	struct net *ct_net;
 #endif
-	struct rcu_head rcu;
 };
 
 static inline struct nf_conn *
@@ -190,9 +188,13 @@ static inline void nf_ct_put(struct nf_conn *ct)
 extern int nf_ct_l3proto_try_module_get(unsigned short l3proto);
 extern void nf_ct_l3proto_module_put(unsigned short l3proto);
 
-extern struct hlist_head *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced);
-extern void nf_ct_free_hashtable(struct hlist_head *hash, int vmalloced,
-				 unsigned int size);
+/*
+ * Allocate a hashtable of hlist_head (if nulls == 0),
+ * or hlist_nulls_head (if nulls == 1)
+ */
+extern void *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced, int nulls);
+
+extern void nf_ct_free_hashtable(void *hash, int vmalloced, unsigned int size);
 
 extern struct nf_conntrack_tuple_hash *
 __nf_conntrack_find(struct net *net, const struct nf_conntrack_tuple *tuple);
diff --git a/include/net/netfilter/nf_conntrack_tuple.h b/include/net/netfilter/nf_conntrack_tuple.h
index f2f6aa73dc10..2628c154d40e 100644
--- a/include/net/netfilter/nf_conntrack_tuple.h
+++ b/include/net/netfilter/nf_conntrack_tuple.h
@@ -12,6 +12,7 @@
 
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter/nf_conntrack_tuple_common.h>
+#include <linux/list_nulls.h>
 
 /* A `tuple' is a structure containing the information to uniquely
   identify a connection.  ie. if two packets have the same tuple, they
@@ -146,9 +147,8 @@ static inline void nf_ct_dump_tuple(const struct nf_conntrack_tuple *t)
 	((enum ip_conntrack_dir)(h)->tuple.dst.dir)
 
 /* Connections have two entries in the hash table: one for each way */
-struct nf_conntrack_tuple_hash
-{
-	struct hlist_node hnode;
+struct nf_conntrack_tuple_hash {
+	struct hlist_nulls_node hnnode;
 	struct nf_conntrack_tuple tuple;
 };
 
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index f4498a62881b..9dc58402bc09 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -2,6 +2,7 @@
 #define __NETNS_CONNTRACK_H
 
 #include <linux/list.h>
+#include <linux/list_nulls.h>
 #include <asm/atomic.h>
 
 struct ctl_table_header;
@@ -10,9 +11,9 @@ struct nf_conntrack_ecache;
 struct netns_ct {
 	atomic_t		count;
 	unsigned int		expect_count;
-	struct hlist_head	*hash;
+	struct hlist_nulls_head	*hash;
 	struct hlist_head	*expect_hash;
-	struct hlist_head	unconfirmed;
+	struct hlist_nulls_head	unconfirmed;
 	struct ip_conntrack_stat *stat;
 #ifdef CONFIG_NF_CONNTRACK_EVENTS
 	struct nf_conntrack_ecache *ecache;
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
index 6ba5c557690c..8668a3defda6 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
@@ -25,40 +25,42 @@ struct ct_iter_state {
 	unsigned int bucket;
 };
 
-static struct hlist_node *ct_get_first(struct seq_file *seq)
+static struct hlist_nulls_node *ct_get_first(struct seq_file *seq)
 {
 	struct net *net = seq_file_net(seq);
 	struct ct_iter_state *st = seq->private;
-	struct hlist_node *n;
+	struct hlist_nulls_node *n;
 
 	for (st->bucket = 0;
 	     st->bucket < nf_conntrack_htable_size;
 	     st->bucket++) {
 		n = rcu_dereference(net->ct.hash[st->bucket].first);
-		if (n)
+		if (!is_a_nulls(n))
 			return n;
 	}
 	return NULL;
 }
 
-static struct hlist_node *ct_get_next(struct seq_file *seq,
-				      struct hlist_node *head)
+static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
+				      struct hlist_nulls_node *head)
 {
 	struct net *net = seq_file_net(seq);
 	struct ct_iter_state *st = seq->private;
 
 	head = rcu_dereference(head->next);
-	while (head == NULL) {
-		if (++st->bucket >= nf_conntrack_htable_size)
-			return NULL;
+	while (is_a_nulls(head)) {
+		if (likely(get_nulls_value(head) == st->bucket)) {
+			if (++st->bucket >= nf_conntrack_htable_size)
+				return NULL;
+		}
 		head = rcu_dereference(net->ct.hash[st->bucket].first);
 	}
 	return head;
 }
 
-static struct hlist_node *ct_get_idx(struct seq_file *seq, loff_t pos)
+static struct hlist_nulls_node *ct_get_idx(struct seq_file *seq, loff_t pos)
 {
-	struct hlist_node *head = ct_get_first(seq);
+	struct hlist_nulls_node *head = ct_get_first(seq);
 
 	if (head)
 		while (pos && (head = ct_get_next(seq, head)))
@@ -87,69 +89,76 @@ static void ct_seq_stop(struct seq_file *s, void *v)
 
 static int ct_seq_show(struct seq_file *s, void *v)
 {
-	const struct nf_conntrack_tuple_hash *hash = v;
-	const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
+	struct nf_conntrack_tuple_hash *hash = v;
+	struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
 	const struct nf_conntrack_l3proto *l3proto;
 	const struct nf_conntrack_l4proto *l4proto;
+	int ret = 0;
 
 	NF_CT_ASSERT(ct);
+	if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
+		return 0;
+
 
 	/* we only want to print DIR_ORIGINAL */
 	if (NF_CT_DIRECTION(hash))
-		return 0;
+		goto release;
 	if (nf_ct_l3num(ct) != AF_INET)
-		return 0;
+		goto release;
 
 	l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
 	NF_CT_ASSERT(l3proto);
 	l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
 	NF_CT_ASSERT(l4proto);
 
+	ret = -ENOSPC;
 	if (seq_printf(s, "%-8s %u %ld ",
 		      l4proto->name, nf_ct_protonum(ct),
 		      timer_pending(&ct->timeout)
 		      ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
-		return -ENOSPC;
+		goto release;
 
 	if (l4proto->print_conntrack && l4proto->print_conntrack(s, ct))
-		return -ENOSPC;
+		goto release;
 
 	if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
 			l3proto, l4proto))
-		return -ENOSPC;
+		goto release;
 
 	if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
-		return -ENOSPC;
+		goto release;
 
 	if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
 		if (seq_printf(s, "[UNREPLIED] "))
-			return -ENOSPC;
+			goto release;
 
 	if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
 			l3proto, l4proto))
-		return -ENOSPC;
+		goto release;
 
 	if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
-		return -ENOSPC;
+		goto release;
 
 	if (test_bit(IPS_ASSURED_BIT, &ct->status))
 		if (seq_printf(s, "[ASSURED] "))
-			return -ENOSPC;
+			goto release;
 
 #ifdef CONFIG_NF_CONNTRACK_MARK
 	if (seq_printf(s, "mark=%u ", ct->mark))
-		return -ENOSPC;
+		goto release;
 #endif
 
 #ifdef CONFIG_NF_CONNTRACK_SECMARK
 	if (seq_printf(s, "secmark=%u ", ct->secmark))
-		return -ENOSPC;
+		goto release;
 #endif
 
 	if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use)))
-		return -ENOSPC;
-
-	return 0;
+		goto release;
+	ret = 0;
+release:
+	nf_ct_put(ct);
+	return ret;
 }
 
 static const struct seq_operations ct_seq_ops = {
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index a65cf692359f..fe65187810f0 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -679,7 +679,7 @@ nfnetlink_parse_nat_setup(struct nf_conn *ct,
 static int __net_init nf_nat_net_init(struct net *net)
 {
 	net->ipv4.nat_bysource = nf_ct_alloc_hashtable(&nf_nat_htable_size,
-						      &net->ipv4.nat_vmalloced);
+						      &net->ipv4.nat_vmalloced, 0);
 	if (!net->ipv4.nat_bysource)
 		return -ENOMEM;
 	return 0;
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 54e983f13898..c55bbdc7d429 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -29,6 +29,7 @@
 #include <linux/netdevice.h>
 #include <linux/socket.h>
 #include <linux/mm.h>
+#include <linux/rculist_nulls.h>
 
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_l3proto.h>
@@ -163,8 +164,8 @@ static void
 clean_from_lists(struct nf_conn *ct)
 {
 	pr_debug("clean_from_lists(%p)\n", ct);
-	hlist_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode);
-	hlist_del_rcu(&ct->tuplehash[IP_CT_DIR_REPLY].hnode);
+	hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
+	hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_REPLY].hnnode);
 
 	/* Destroy all pending expectations */
 	nf_ct_remove_expectations(ct);
@@ -204,8 +205,8 @@ destroy_conntrack(struct nf_conntrack *nfct)
 
 	/* We overload first tuple to link into unconfirmed list. */
 	if (!nf_ct_is_confirmed(ct)) {
-		BUG_ON(hlist_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode));
-		hlist_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode);
+		BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode));
+		hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
 	}
 
 	NF_CT_STAT_INC(net, delete);
@@ -242,18 +243,26 @@ static void death_by_timeout(unsigned long ul_conntrack)
 	nf_ct_put(ct);
 }
 
+/*
+ * Warning :
+ * - Caller must take a reference on returned object
+ *   and recheck nf_ct_tuple_equal(tuple, &h->tuple)
+ * OR
+ * - Caller must lock nf_conntrack_lock before calling this function
+ */
 struct nf_conntrack_tuple_hash *
 __nf_conntrack_find(struct net *net, const struct nf_conntrack_tuple *tuple)
 {
 	struct nf_conntrack_tuple_hash *h;
-	struct hlist_node *n;
+	struct hlist_nulls_node *n;
 	unsigned int hash = hash_conntrack(tuple);
 
 	/* Disable BHs the entire time since we normally need to disable them
 	 * at least once for the stats anyway.
 	 */
 	local_bh_disable();
-	hlist_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnode) {
+begin:
+	hlist_nulls_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnnode) {
 		if (nf_ct_tuple_equal(tuple, &h->tuple)) {
 			NF_CT_STAT_INC(net, found);
 			local_bh_enable();
@@ -261,6 +270,13 @@ __nf_conntrack_find(struct net *net, const struct nf_conntrack_tuple *tuple)
 		}
 		NF_CT_STAT_INC(net, searched);
 	}
+	/*
+	 * if the nulls value we got at the end of this lookup is
+	 * not the expected one, we must restart lookup.
+	 * We probably met an item that was moved to another chain.
+	 */
+	if (get_nulls_value(n) != hash)
+		goto begin;
 	local_bh_enable();
 
 	return NULL;
@@ -275,11 +291,18 @@ nf_conntrack_find_get(struct net *net, const struct nf_conntrack_tuple *tuple)
 	struct nf_conn *ct;
 
 	rcu_read_lock();
+begin:
 	h = __nf_conntrack_find(net, tuple);
 	if (h) {
 		ct = nf_ct_tuplehash_to_ctrack(h);
 		if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
 			h = NULL;
+		else {
+			if (unlikely(!nf_ct_tuple_equal(tuple, &h->tuple))) {
+				nf_ct_put(ct);
+				goto begin;
+			}
+		}
 	}
 	rcu_read_unlock();
 
@@ -293,9 +316,9 @@ static void __nf_conntrack_hash_insert(struct nf_conn *ct,
 {
 	struct net *net = nf_ct_net(ct);
 
-	hlist_add_head_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode,
+	hlist_nulls_add_head_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
 			   &net->ct.hash[hash]);
-	hlist_add_head_rcu(&ct->tuplehash[IP_CT_DIR_REPLY].hnode,
+	hlist_nulls_add_head_rcu(&ct->tuplehash[IP_CT_DIR_REPLY].hnnode,
 			   &net->ct.hash[repl_hash]);
 }
 
@@ -318,7 +341,7 @@ __nf_conntrack_confirm(struct sk_buff *skb)
 	struct nf_conntrack_tuple_hash *h;
 	struct nf_conn *ct;
 	struct nf_conn_help *help;
-	struct hlist_node *n;
+	struct hlist_nulls_node *n;
 	enum ip_conntrack_info ctinfo;
 	struct net *net;
 
@@ -350,17 +373,17 @@ __nf_conntrack_confirm(struct sk_buff *skb)
 	/* See if there's one in the list already, including reverse:
 	   NAT could have grabbed it without realizing, since we're
 	   not in the hash.  If there is, we lost race. */
-	hlist_for_each_entry(h, n, &net->ct.hash[hash], hnode)
+	hlist_nulls_for_each_entry(h, n, &net->ct.hash[hash], hnnode)
 		if (nf_ct_tuple_equal(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
 				      &h->tuple))
 			goto out;
-	hlist_for_each_entry(h, n, &net->ct.hash[repl_hash], hnode)
+	hlist_nulls_for_each_entry(h, n, &net->ct.hash[repl_hash], hnnode)
 		if (nf_ct_tuple_equal(&ct->tuplehash[IP_CT_DIR_REPLY].tuple,
 				      &h->tuple))
 			goto out;
 
 	/* Remove from unconfirmed list */
-	hlist_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode);
+	hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode);
 
 	__nf_conntrack_hash_insert(ct, hash, repl_hash);
 	/* Timer relative to confirmation time, not original
@@ -399,14 +422,14 @@ nf_conntrack_tuple_taken(const struct nf_conntrack_tuple *tuple,
 {
 	struct net *net = nf_ct_net(ignored_conntrack);
 	struct nf_conntrack_tuple_hash *h;
-	struct hlist_node *n;
+	struct hlist_nulls_node *n;
 	unsigned int hash = hash_conntrack(tuple);
 
 	/* Disable BHs the entire time since we need to disable them at
 	 * least once for the stats anyway.
 	 */
 	rcu_read_lock_bh();
-	hlist_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnode) {
+	hlist_nulls_for_each_entry_rcu(h, n, &net->ct.hash[hash], hnnode) {
 		if (nf_ct_tuplehash_to_ctrack(h) != ignored_conntrack &&
 		    nf_ct_tuple_equal(tuple, &h->tuple)) {
 			NF_CT_STAT_INC(net, found);
@@ -430,14 +453,14 @@ static noinline int early_drop(struct net *net, unsigned int hash)
 	/* Use oldest entry, which is roughly LRU */
 	struct nf_conntrack_tuple_hash *h;
 	struct nf_conn *ct = NULL, *tmp;
-	struct hlist_node *n;
+	struct hlist_nulls_node *n;
 	unsigned int i, cnt = 0;
 	int dropped = 0;
 
 	rcu_read_lock();
 	for (i = 0; i < nf_conntrack_htable_size; i++) {
-		hlist_for_each_entry_rcu(h, n, &net->ct.hash[hash],
-					 hnode) {
+		hlist_nulls_for_each_entry_rcu(h, n, &net->ct.hash[hash],
+					 hnnode) {
 			tmp = nf_ct_tuplehash_to_ctrack(h);
 			if (!test_bit(IPS_ASSURED_BIT, &tmp->status))
 				ct = tmp;
@@ -508,27 +531,19 @@ struct nf_conn *nf_conntrack_alloc(struct net *net,
 #ifdef CONFIG_NET_NS
 	ct->ct_net = net;
 #endif
-	INIT_RCU_HEAD(&ct->rcu);
 
 	return ct;
 }
 EXPORT_SYMBOL_GPL(nf_conntrack_alloc);
 
-static void nf_conntrack_free_rcu(struct rcu_head *head)
-{
-	struct nf_conn *ct = container_of(head, struct nf_conn, rcu);
-
-	nf_ct_ext_free(ct);
-	kmem_cache_free(nf_conntrack_cachep, ct);
-}
-
 void nf_conntrack_free(struct nf_conn *ct)
 {
 	struct net *net = nf_ct_net(ct);
 
 	nf_ct_ext_destroy(ct);
 	atomic_dec(&net->ct.count);
-	call_rcu(&ct->rcu, nf_conntrack_free_rcu);
+	nf_ct_ext_free(ct);
+	kmem_cache_free(nf_conntrack_cachep, ct);
 }
 EXPORT_SYMBOL_GPL(nf_conntrack_free);
 
@@ -594,7 +609,7 @@ init_conntrack(struct net *net,
 	}
 
 	/* Overload tuple linked list to put us in unconfirmed list. */
-	hlist_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnode,
+	hlist_nulls_add_head_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,
 		       &net->ct.unconfirmed);
 
 	spin_unlock_bh(&nf_conntrack_lock);
@@ -934,17 +949,17 @@ get_next_corpse(struct net *net, int (*iter)(struct nf_conn *i, void *data),
 {
 	struct nf_conntrack_tuple_hash *h;
 	struct nf_conn *ct;
-	struct hlist_node *n;
+	struct hlist_nulls_node *n;
 
 	spin_lock_bh(&nf_conntrack_lock);
 	for (; *bucket < nf_conntrack_htable_size; (*bucket)++) {
-		hlist_for_each_entry(h, n, &net->ct.hash[*bucket], hnode) {
+		hlist_nulls_for_each_entry(h, n, &net->ct.hash[*bucket], hnnode) {
 			ct = nf_ct_tuplehash_to_ctrack(h);
 			if (iter(ct, data))
 				goto found;
 		}
 	}
-	hlist_for_each_entry(h, n, &net->ct.unconfirmed, hnode) {
+	hlist_nulls_for_each_entry(h, n, &net->ct.unconfirmed, hnnode) {
 		ct = nf_ct_tuplehash_to_ctrack(h);
 		if (iter(ct, data))
 			set_bit(IPS_DYING_BIT, &ct->status);
@@ -992,7 +1007,7 @@ static int kill_all(struct nf_conn *i, void *data)
 	return 1;
 }
 
-void nf_ct_free_hashtable(struct hlist_head *hash, int vmalloced, unsigned int size)
+void nf_ct_free_hashtable(void *hash, int vmalloced, unsigned int size)
 {
 	if (vmalloced)
 		vfree(hash);
@@ -1060,26 +1075,28 @@ void nf_conntrack_cleanup(struct net *net)
 	}
 }
 
-struct hlist_head *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced)
+void *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced, int nulls)
 {
-	struct hlist_head *hash;
-	unsigned int size, i;
+	struct hlist_nulls_head *hash;
+	unsigned int nr_slots, i;
+	size_t sz;
 
 	*vmalloced = 0;
 
-	size = *sizep = roundup(*sizep, PAGE_SIZE / sizeof(struct hlist_head));
-	hash = (void*)__get_free_pages(GFP_KERNEL|__GFP_NOWARN,
-				       get_order(sizeof(struct hlist_head)
-						 * size));
+	BUILD_BUG_ON(sizeof(struct hlist_nulls_head) != sizeof(struct hlist_head));
+	nr_slots = *sizep = roundup(*sizep, PAGE_SIZE / sizeof(struct hlist_nulls_head));
+	sz = nr_slots * sizeof(struct hlist_nulls_head);
+	hash = (void *)__get_free_pages(GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO,
+					get_order(sz));
 	if (!hash) {
 		*vmalloced = 1;
 		printk(KERN_WARNING "nf_conntrack: falling back to vmalloc.\n");
-		hash = vmalloc(sizeof(struct hlist_head) * size);
+		hash = __vmalloc(sz, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL);
 	}
 
-	if (hash)
-		for (i = 0; i < size; i++)
-			INIT_HLIST_HEAD(&hash[i]);
+	if (hash && nulls)
+		for (i = 0; i < nr_slots; i++)
+			INIT_HLIST_NULLS_HEAD(&hash[i], i);
 
 	return hash;
 }
@@ -1090,7 +1107,7 @@ int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
 	int i, bucket, vmalloced, old_vmalloced;
 	unsigned int hashsize, old_size;
 	int rnd;
-	struct hlist_head *hash, *old_hash;
+	struct hlist_nulls_head *hash, *old_hash;
 	struct nf_conntrack_tuple_hash *h;
 
 	/* On boot, we can set this without any fancy locking. */
@@ -1101,7 +1118,7 @@ int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
 	if (!hashsize)
 		return -EINVAL;
 
-	hash = nf_ct_alloc_hashtable(&hashsize, &vmalloced);
+	hash = nf_ct_alloc_hashtable(&hashsize, &vmalloced, 1);
 	if (!hash)
 		return -ENOMEM;
 
@@ -1116,12 +1133,12 @@ int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
 	 */
 	spin_lock_bh(&nf_conntrack_lock);
 	for (i = 0; i < nf_conntrack_htable_size; i++) {
-		while (!hlist_empty(&init_net.ct.hash[i])) {
-			h = hlist_entry(init_net.ct.hash[i].first,
-					struct nf_conntrack_tuple_hash, hnode);
-			hlist_del_rcu(&h->hnode);
+		while (!hlist_nulls_empty(&init_net.ct.hash[i])) {
+			h = hlist_nulls_entry(init_net.ct.hash[i].first,
+					struct nf_conntrack_tuple_hash, hnnode);
+			hlist_nulls_del_rcu(&h->hnnode);
 			bucket = __hash_conntrack(&h->tuple, hashsize, rnd);
-			hlist_add_head_rcu(&h->hnode, &hash[bucket]);
+			hlist_nulls_add_head_rcu(&h->hnnode, &hash[bucket]);
 		}
 	}
 	old_size = nf_conntrack_htable_size;
@@ -1172,7 +1189,7 @@ static int nf_conntrack_init_init_net(void)
 
 	nf_conntrack_cachep = kmem_cache_create("nf_conntrack",
 						sizeof(struct nf_conn),
-						0, 0, NULL);
+						0, SLAB_DESTROY_BY_RCU, NULL);
 	if (!nf_conntrack_cachep) {
 		printk(KERN_ERR "Unable to create nf_conn slab cache\n");
 		ret = -ENOMEM;
@@ -1202,7 +1219,7 @@ static int nf_conntrack_init_net(struct net *net)
 	int ret;
 
 	atomic_set(&net->ct.count, 0);
-	INIT_HLIST_HEAD(&net->ct.unconfirmed);
+	INIT_HLIST_NULLS_HEAD(&net->ct.unconfirmed, 0);
 	net->ct.stat = alloc_percpu(struct ip_conntrack_stat);
 	if (!net->ct.stat) {
 		ret = -ENOMEM;
@@ -1212,7 +1229,7 @@ static int nf_conntrack_init_net(struct net *net)
 	if (ret < 0)
 		goto err_ecache;
 	net->ct.hash = nf_ct_alloc_hashtable(&nf_conntrack_htable_size,
-						  &net->ct.hash_vmalloc);
+					     &net->ct.hash_vmalloc, 1);
 	if (!net->ct.hash) {
 		ret = -ENOMEM;
 		printk(KERN_ERR "Unable to create nf_conntrack_hash\n");
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index 357ba39d4c8d..3940f996a2e4 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -604,7 +604,7 @@ int nf_conntrack_expect_init(struct net *net)
 
 	net->ct.expect_count = 0;
 	net->ct.expect_hash = nf_ct_alloc_hashtable(&nf_ct_expect_hsize,
-						  &net->ct.expect_vmalloc);
+						  &net->ct.expect_vmalloc, 0);
 	if (net->ct.expect_hash == NULL)
 		goto err1;
 
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 805cfdd42303..30b8e9009f99 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -159,6 +159,7 @@ static void __nf_conntrack_helper_unregister(struct nf_conntrack_helper *me,
 	struct nf_conntrack_tuple_hash *h;
 	struct nf_conntrack_expect *exp;
 	const struct hlist_node *n, *next;
+	const struct hlist_nulls_node *nn;
 	unsigned int i;
 
 	/* Get rid of expectations */
@@ -175,10 +176,10 @@ static void __nf_conntrack_helper_unregister(struct nf_conntrack_helper *me,
 	}
 
 	/* Get rid of expecteds, set helpers to NULL. */
-	hlist_for_each_entry(h, n, &net->ct.unconfirmed, hnode)
+	hlist_for_each_entry(h, nn, &net->ct.unconfirmed, hnnode)
 		unhelp(h, me);
 	for (i = 0; i < nf_conntrack_htable_size; i++) {
-		hlist_for_each_entry(h, n, &net->ct.hash[i], hnode)
+		hlist_nulls_for_each_entry(h, nn, &net->ct.hash[i], hnnode)
 			unhelp(h, me);
 	}
 }
@@ -218,7 +219,7 @@ int nf_conntrack_helper_init(void)
 
 	nf_ct_helper_hsize = 1; /* gets rounded up to use one page */
 	nf_ct_helper_hash = nf_ct_alloc_hashtable(&nf_ct_helper_hsize,
-						  &nf_ct_helper_vmalloc);
+						  &nf_ct_helper_vmalloc, 0);
 	if (!nf_ct_helper_hash)
 		return -ENOMEM;
 
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 1b75c9efb0eb..349bbefe5517 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/rculist.h>
+#include <linux/rculist_nulls.h>
 #include <linux/types.h>
 #include <linux/timer.h>
 #include <linux/skbuff.h>
@@ -536,7 +537,7 @@ ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct nf_conn *ct, *last;
 	struct nf_conntrack_tuple_hash *h;
-	struct hlist_node *n;
+	struct hlist_nulls_node *n;
 	struct nfgenmsg *nfmsg = NLMSG_DATA(cb->nlh);
 	u_int8_t l3proto = nfmsg->nfgen_family;
 
@@ -544,27 +545,27 @@ ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
 	last = (struct nf_conn *)cb->args[1];
 	for (; cb->args[0] < nf_conntrack_htable_size; cb->args[0]++) {
 restart:
-		hlist_for_each_entry_rcu(h, n, &init_net.ct.hash[cb->args[0]],
-					 hnode) {
+		hlist_nulls_for_each_entry_rcu(h, n, &init_net.ct.hash[cb->args[0]],
+					 hnnode) {
 			if (NF_CT_DIRECTION(h) != IP_CT_DIR_ORIGINAL)
 				continue;
 			ct = nf_ct_tuplehash_to_ctrack(h);
+			if (!atomic_inc_not_zero(&ct->ct_general.use))
+				continue;
 			/* Dump entries of a given L3 protocol number.
 			 * If it is not specified, ie. l3proto == 0,
 			 * then dump everything. */
 			if (l3proto && nf_ct_l3num(ct) != l3proto)
-				continue;
+				goto releasect;
 			if (cb->args[1]) {
 				if (ct != last)
-					continue;
+					goto releasect;
 				cb->args[1] = 0;
 			}
 			if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid,
 						cb->nlh->nlmsg_seq,
 						IPCTNL_MSG_CT_NEW,
 						1, ct) < 0) {
-				if (!atomic_inc_not_zero(&ct->ct_general.use))
-					continue;
 				cb->args[1] = (unsigned long)ct;
 				goto out;
 			}
@@ -577,6 +578,8 @@ restart:
 				if (acct)
 					memset(acct, 0, sizeof(struct nf_conn_counter[IP_CT_DIR_MAX]));
 			}
+releasect:
+		nf_ct_put(ct);
 		}
 		if (cb->args[1]) {
 			cb->args[1] = 0;
@@ -1242,13 +1245,12 @@ ctnetlink_create_conntrack(struct nlattr *cda[],
 		if (err < 0)
 			goto err2;
 
-		master_h = __nf_conntrack_find(&init_net, &master);
+		master_h = nf_conntrack_find_get(&init_net, &master);
 		if (master_h == NULL) {
 			err = -ENOENT;
 			goto err2;
 		}
 		master_ct = nf_ct_tuplehash_to_ctrack(master_h);
-		nf_conntrack_get(&master_ct->ct_general);
 		__set_bit(IPS_EXPECTED_BIT, &ct->status);
 		ct->master = master_ct;
 	}
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 4da54b0b9233..193515381970 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -44,40 +44,42 @@ struct ct_iter_state {
 	unsigned int bucket;
 };
 
-static struct hlist_node *ct_get_first(struct seq_file *seq)
+static struct hlist_nulls_node *ct_get_first(struct seq_file *seq)
 {
 	struct net *net = seq_file_net(seq);
 	struct ct_iter_state *st = seq->private;
-	struct hlist_node *n;
+	struct hlist_nulls_node *n;
 
 	for (st->bucket = 0;
 	     st->bucket < nf_conntrack_htable_size;
 	     st->bucket++) {
 		n = rcu_dereference(net->ct.hash[st->bucket].first);
-		if (n)
+		if (!is_a_nulls(n))
 			return n;
 	}
 	return NULL;
 }
 
-static struct hlist_node *ct_get_next(struct seq_file *seq,
-				      struct hlist_node *head)
+static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
+				      struct hlist_nulls_node *head)
 {
 	struct net *net = seq_file_net(seq);
 	struct ct_iter_state *st = seq->private;
 
 	head = rcu_dereference(head->next);
-	while (head == NULL) {
-		if (++st->bucket >= nf_conntrack_htable_size)
-			return NULL;
+	while (is_a_nulls(head)) {
+		if (likely(get_nulls_value(head) == st->bucket)) {
+			if (++st->bucket >= nf_conntrack_htable_size)
+				return NULL;
+		}
 		head = rcu_dereference(net->ct.hash[st->bucket].first);
 	}
 	return head;
 }
 
-static struct hlist_node *ct_get_idx(struct seq_file *seq, loff_t pos)
+static struct hlist_nulls_node *ct_get_idx(struct seq_file *seq, loff_t pos)
 {
-	struct hlist_node *head = ct_get_first(seq);
+	struct hlist_nulls_node *head = ct_get_first(seq);
 
 	if (head)
 		while (pos && (head = ct_get_next(seq, head)))
@@ -107,67 +109,74 @@ static void ct_seq_stop(struct seq_file *s, void *v)
 /* return 0 on success, 1 in case of error */
 static int ct_seq_show(struct seq_file *s, void *v)
 {
-	const struct nf_conntrack_tuple_hash *hash = v;
-	const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
+	struct nf_conntrack_tuple_hash *hash = v;
+	struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
 	const struct nf_conntrack_l3proto *l3proto;
 	const struct nf_conntrack_l4proto *l4proto;
+	int ret = 0;
 
 	NF_CT_ASSERT(ct);
+	if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
+		return 0;
 
 	/* we only want to print DIR_ORIGINAL */
 	if (NF_CT_DIRECTION(hash))
-		return 0;
+		goto release;
 
 	l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
 	NF_CT_ASSERT(l3proto);
 	l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
 	NF_CT_ASSERT(l4proto);
 
+	ret = -ENOSPC;
 	if (seq_printf(s, "%-8s %u %-8s %u %ld ",
 		       l3proto->name, nf_ct_l3num(ct),
 		       l4proto->name, nf_ct_protonum(ct),
 		       timer_pending(&ct->timeout)
 		       ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
-		return -ENOSPC;
+		goto release;
 
 	if (l4proto->print_conntrack && l4proto->print_conntrack(s, ct))
-		return -ENOSPC;
+		goto release;
 
 	if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
 			l3proto, l4proto))
-		return -ENOSPC;
+		goto release;
 
 	if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
-		return -ENOSPC;
+		goto release;
 
 	if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
 		if (seq_printf(s, "[UNREPLIED] "))
-			return -ENOSPC;
+			goto release;
 
 	if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
 			l3proto, l4proto))
-		return -ENOSPC;
+		goto release;
 
 	if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
-		return -ENOSPC;
+		goto release;
 
 	if (test_bit(IPS_ASSURED_BIT, &ct->status))
 		if (seq_printf(s, "[ASSURED] "))
-			return -ENOSPC;
+			goto release;
 
 #if defined(CONFIG_NF_CONNTRACK_MARK)
 	if (seq_printf(s, "mark=%u ", ct->mark))
-		return -ENOSPC;
+		goto release;
 #endif
 
 #ifdef CONFIG_NF_CONNTRACK_SECMARK
 	if (seq_printf(s, "secmark=%u ", ct->secmark))
-		return -ENOSPC;
+		goto release;
 #endif
 
 	if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use)))
-		return -ENOSPC;
+		goto release;
 
+	ret = 0;
+release:
+	nf_ct_put(ct);
 	return 0;
 }
 
diff --git a/net/netfilter/xt_connlimit.c b/net/netfilter/xt_connlimit.c
index 7f404cc64c83..680980954395 100644
--- a/net/netfilter/xt_connlimit.c
+++ b/net/netfilter/xt_connlimit.c
@@ -108,7 +108,7 @@ static int count_them(struct xt_connlimit_data *data,
 	const struct nf_conntrack_tuple_hash *found;
 	struct xt_connlimit_conn *conn;
 	struct xt_connlimit_conn *tmp;
-	const struct nf_conn *found_ct;
+	struct nf_conn *found_ct;
 	struct list_head *hash;
 	bool addit = true;
 	int matches = 0;
@@ -123,7 +123,7 @@ static int count_them(struct xt_connlimit_data *data,
 
 	/* check the saved connections */
 	list_for_each_entry_safe(conn, tmp, hash, list) {
-		found    = __nf_conntrack_find(&init_net, &conn->tuple);
+		found    = nf_conntrack_find_get(&init_net, &conn->tuple);
 		found_ct = NULL;
 
 		if (found != NULL)
@@ -151,6 +151,7 @@ static int count_them(struct xt_connlimit_data *data,
 			 * we do not care about connections which are
 			 * closed already -> ditch it
 			 */
+			nf_ct_put(found_ct);
 			list_del(&conn->list);
 			kfree(conn);
 			continue;
@@ -160,6 +161,7 @@ static int count_them(struct xt_connlimit_data *data,
 		    match->family))
 			/* same source network -> be counted! */
 			++matches;
+		nf_ct_put(found_ct);
 	}
 
 	rcu_read_unlock();
-- 
cgit v1.2.3


From 5c0de29d06318ec8f6e3ba0d17d62529dbbdc1e8 Mon Sep 17 00:00:00 2001
From: Holger Eitzenberger <holger@eitzenberger.org>
Date: Wed, 25 Mar 2009 21:52:17 +0100
Subject: netfilter: nf_conntrack: add generic function to get len of generic
 policy

Usefull for all protocols which do not add additional data, such
as GRE or UDPlite.

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 include/net/netfilter/nf_conntrack_l4proto.h | 1 +
 net/netfilter/nf_conntrack_core.c            | 6 ++++++
 2 files changed, 7 insertions(+)

(limited to 'include')

diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index a120990b3b2b..ba32ed7bdabe 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -113,6 +113,7 @@ extern int nf_ct_port_tuple_to_nlattr(struct sk_buff *skb,
 				      const struct nf_conntrack_tuple *tuple);
 extern int nf_ct_port_nlattr_to_tuple(struct nlattr *tb[],
 				      struct nf_conntrack_tuple *t);
+extern int nf_ct_port_nlattr_tuple_size(void);
 extern const struct nla_policy nf_ct_port_nla_policy[];
 
 #ifdef CONFIG_SYSCTL
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index c55bbdc7d429..b182b30c7d8d 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -921,6 +921,12 @@ int nf_ct_port_nlattr_to_tuple(struct nlattr *tb[],
 	return 0;
 }
 EXPORT_SYMBOL_GPL(nf_ct_port_nlattr_to_tuple);
+
+int nf_ct_port_nlattr_tuple_size(void)
+{
+	return nla_policy_len(nf_ct_port_nla_policy, CTA_PROTO_MAX + 1);
+}
+EXPORT_SYMBOL_GPL(nf_ct_port_nlattr_tuple_size);
 #endif
 
 /* Used by ipt_REJECT and ip6t_REJECT. */
-- 
cgit v1.2.3


From f18df228997fb716990590d248663981a15f17d4 Mon Sep 17 00:00:00 2001
From: Mingming Cao <cmm@us.ibm.com>
Date: Tue, 13 Jan 2009 16:43:09 +0100
Subject: quota: Add quota reservation support

Delayed allocation defers the block allocation at the dirty pages
flush-out time, doing quota charge/check at that time is too late.
But we can't charge the quota blocks until blocks are really allocated,
otherwise users could get overcharged after reboot from system crash.

This patch adds quota reservation for delayed allocation. Quota blocks
are reserved in memory, inode and quota won't gets dirtied until later
block allocation time.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/dquot.c               | 117 ++++++++++++++++++++++++++++++++++-------------
 include/linux/quota.h    |   3 ++
 include/linux/quotaops.h |  21 +++++++++
 3 files changed, 110 insertions(+), 31 deletions(-)

(limited to 'include')

diff --git a/fs/dquot.c b/fs/dquot.c
index bca3cac4bee7..9b1c4d3c9d83 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -899,6 +899,11 @@ static inline void dquot_incr_space(struct dquot *dquot, qsize_t number)
 	dquot->dq_dqb.dqb_curspace += number;
 }
 
+static inline void dquot_resv_space(struct dquot *dquot, qsize_t number)
+{
+	dquot->dq_dqb.dqb_rsvspace += number;
+}
+
 static inline void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
 {
 	if (sb_dqopt(dquot->dq_sb)->flags & DQUOT_NEGATIVE_USAGE ||
@@ -1068,7 +1073,11 @@ err_out:
 	kfree_skb(skb);
 }
 #endif
-
+/*
+ * Write warnings to the console and send warning messages over netlink.
+ *
+ * Note that this function can sleep.
+ */
 static inline void flush_warnings(struct dquot * const *dquots, char *warntype)
 {
 	int i;
@@ -1129,13 +1138,18 @@ static int check_idq(struct dquot *dquot, qsize_t inodes, char *warntype)
 /* needs dq_data_lock */
 static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *warntype)
 {
+	qsize_t tspace;
+
 	*warntype = QUOTA_NL_NOWARN;
 	if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type) ||
 	    test_bit(DQ_FAKE_B, &dquot->dq_flags))
 		return QUOTA_OK;
 
+	tspace = dquot->dq_dqb.dqb_curspace + dquot->dq_dqb.dqb_rsvspace
+		+ space;
+
 	if (dquot->dq_dqb.dqb_bhardlimit &&
-	    dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bhardlimit &&
+	    tspace > dquot->dq_dqb.dqb_bhardlimit &&
             !ignore_hardlimit(dquot)) {
 		if (!prealloc)
 			*warntype = QUOTA_NL_BHARDWARN;
@@ -1143,7 +1157,7 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
 	}
 
 	if (dquot->dq_dqb.dqb_bsoftlimit &&
-	    dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bsoftlimit &&
+	    tspace > dquot->dq_dqb.dqb_bsoftlimit &&
 	    dquot->dq_dqb.dqb_btime && get_seconds() >= dquot->dq_dqb.dqb_btime &&
             !ignore_hardlimit(dquot)) {
 		if (!prealloc)
@@ -1152,7 +1166,7 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
 	}
 
 	if (dquot->dq_dqb.dqb_bsoftlimit &&
-	    dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bsoftlimit &&
+	    tspace > dquot->dq_dqb.dqb_bsoftlimit &&
 	    dquot->dq_dqb.dqb_btime == 0) {
 		if (!prealloc) {
 			*warntype = QUOTA_NL_BSOFTWARN;
@@ -1306,51 +1320,92 @@ void vfs_dq_drop(struct inode *inode)
 /*
  * This operation can block, but only after everything is updated
  */
-int dquot_alloc_space(struct inode *inode, qsize_t number, int warn)
+int __dquot_alloc_space(struct inode *inode, qsize_t number,
+			int warn, int reserve)
 {
-	int cnt, ret = NO_QUOTA;
+	int cnt, ret = QUOTA_OK;
 	char warntype[MAXQUOTAS];
 
-	/* First test before acquiring mutex - solves deadlocks when we
-         * re-enter the quota code and are already holding the mutex */
-	if (IS_NOQUOTA(inode)) {
-out_add:
-		inode_add_bytes(inode, number);
-		return QUOTA_OK;
-	}
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
 		warntype[cnt] = QUOTA_NL_NOWARN;
 
-	down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
-	if (IS_NOQUOTA(inode)) {	/* Now we can do reliable test... */
-		up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
-		goto out_add;
-	}
 	spin_lock(&dq_data_lock);
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
 		if (inode->i_dquot[cnt] == NODQUOT)
 			continue;
-		if (check_bdq(inode->i_dquot[cnt], number, warn, warntype+cnt) == NO_QUOTA)
-			goto warn_put_all;
+		if (check_bdq(inode->i_dquot[cnt], number, warn, warntype+cnt)
+		    == NO_QUOTA) {
+			ret = NO_QUOTA;
+			goto out_unlock;
+		}
 	}
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
 		if (inode->i_dquot[cnt] == NODQUOT)
 			continue;
-		dquot_incr_space(inode->i_dquot[cnt], number);
+		if (reserve)
+			dquot_resv_space(inode->i_dquot[cnt], number);
+		else
+			dquot_incr_space(inode->i_dquot[cnt], number);
 	}
-	inode_add_bytes(inode, number);
-	ret = QUOTA_OK;
-warn_put_all:
+	if (!reserve)
+		inode_add_bytes(inode, number);
+out_unlock:
 	spin_unlock(&dq_data_lock);
-	if (ret == QUOTA_OK)
-		/* Dirtify all the dquots - this can block when journalling */
-		for (cnt = 0; cnt < MAXQUOTAS; cnt++)
-			if (inode->i_dquot[cnt])
-				mark_dquot_dirty(inode->i_dquot[cnt]);
 	flush_warnings(inode->i_dquot, warntype);
+	return ret;
+}
+
+int dquot_alloc_space(struct inode *inode, qsize_t number, int warn)
+{
+	int cnt, ret = QUOTA_OK;
+
+	/*
+	 * First test before acquiring mutex - solves deadlocks when we
+	 * re-enter the quota code and are already holding the mutex
+	 */
+	if (IS_NOQUOTA(inode)) {
+		inode_add_bytes(inode, number);
+		goto out;
+	}
+
+	down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+	if (IS_NOQUOTA(inode)) {
+		inode_add_bytes(inode, number);
+		goto out_unlock;
+	}
+
+	ret = __dquot_alloc_space(inode, number, warn, 0);
+	if (ret == NO_QUOTA)
+		goto out_unlock;
+
+	/* Dirtify all the dquots - this can block when journalling */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+		if (inode->i_dquot[cnt])
+			mark_dquot_dirty(inode->i_dquot[cnt]);
+out_unlock:
 	up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+out:
+	return ret;
+}
+
+int dquot_reserve_space(struct inode *inode, qsize_t number, int warn)
+{
+	int ret = QUOTA_OK;
+
+	if (IS_NOQUOTA(inode))
+		goto out;
+
+	down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+	if (IS_NOQUOTA(inode))
+		goto out_unlock;
+
+	ret = __dquot_alloc_space(inode, number, warn, 1);
+out_unlock:
+	up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+out:
 	return ret;
 }
+EXPORT_SYMBOL(dquot_reserve_space);
 
 /*
  * This operation can block, but only after everything is updated
@@ -2057,7 +2112,7 @@ static void do_get_dqblk(struct dquot *dquot, struct if_dqblk *di)
 	spin_lock(&dq_data_lock);
 	di->dqb_bhardlimit = stoqb(dm->dqb_bhardlimit);
 	di->dqb_bsoftlimit = stoqb(dm->dqb_bsoftlimit);
-	di->dqb_curspace = dm->dqb_curspace;
+	di->dqb_curspace = dm->dqb_curspace + dm->dqb_rsvspace;
 	di->dqb_ihardlimit = dm->dqb_ihardlimit;
 	di->dqb_isoftlimit = dm->dqb_isoftlimit;
 	di->dqb_curinodes = dm->dqb_curinodes;
@@ -2097,7 +2152,7 @@ static int do_set_dqblk(struct dquot *dquot, struct if_dqblk *di)
 
 	spin_lock(&dq_data_lock);
 	if (di->dqb_valid & QIF_SPACE) {
-		dm->dqb_curspace = di->dqb_curspace;
+		dm->dqb_curspace = di->dqb_curspace - dm->dqb_rsvspace;
 		check_blim = 1;
 		__set_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags);
 	}
diff --git a/include/linux/quota.h b/include/linux/quota.h
index d72d5d84fde5..54b837fa64f2 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -198,6 +198,7 @@ struct mem_dqblk {
 	qsize_t dqb_bhardlimit;	/* absolute limit on disk blks alloc */
 	qsize_t dqb_bsoftlimit;	/* preferred limit on disk blks */
 	qsize_t dqb_curspace;	/* current used space */
+	qsize_t dqb_rsvspace;   /* current reserved space for delalloc*/
 	qsize_t dqb_ihardlimit;	/* absolute limit on allocated inodes */
 	qsize_t dqb_isoftlimit;	/* preferred inode limit */
 	qsize_t dqb_curinodes;	/* current # allocated inodes */
@@ -308,6 +309,8 @@ struct dquot_operations {
 	int (*release_dquot) (struct dquot *);		/* Quota is going to be deleted from disk */
 	int (*mark_dirty) (struct dquot *);		/* Dquot is marked dirty */
 	int (*write_info) (struct super_block *, int);	/* Write of quota "superblock" */
+	/* reserve quota for delayed block allocation */
+	int (*reserve_space) (struct inode *, qsize_t, int);
 };
 
 /* Operations handling requests from userspace */
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 0b35b3a1be05..3e3a0d2874d9 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -183,6 +183,16 @@ static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
 	return ret;
 }
 
+static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
+{
+	if (sb_any_quota_active(inode->i_sb)) {
+		/* Used space is updated in alloc_space() */
+		if (inode->i_sb->dq_op->reserve_space(inode, nr, 0) == NO_QUOTA)
+			return 1;
+	}
+	return 0;
+}
+
 static inline int vfs_dq_alloc_inode(struct inode *inode)
 {
 	if (sb_any_quota_active(inode->i_sb)) {
@@ -339,6 +349,11 @@ static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
 	return 0;
 }
 
+static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
+{
+	return 0;
+}
+
 static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
 {
 	inode_sub_bytes(inode, nr);
@@ -376,6 +391,12 @@ static inline int vfs_dq_alloc_block(struct inode *inode, qsize_t nr)
 			nr << inode->i_sb->s_blocksize_bits);
 }
 
+static inline int vfs_dq_reserve_block(struct inode *inode, qsize_t nr)
+{
+	return vfs_dq_reserve_space(inode,
+			nr << inode->i_blkbits);
+}
+
 static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr)
 {
 	vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits);
-- 
cgit v1.2.3


From 740d9dcd949a986c88886a591054a0cdb89ef669 Mon Sep 17 00:00:00 2001
From: Mingming Cao <cmm@us.ibm.com>
Date: Tue, 13 Jan 2009 16:43:14 +0100
Subject: quota: Add quota reservation claim and released operations

Reserved quota will be claimed at the block allocation time. Over-booked
quota could be returned back with the release callback function.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/dquot.c               | 110 +++++++++++++++++++++++++++++++++++++++++++++--
 include/linux/quota.h    |   6 +++
 include/linux/quotaops.h |  53 +++++++++++++++++++++++
 3 files changed, 165 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/fs/dquot.c b/fs/dquot.c
index 9b1c4d3c9d83..2916f91ca40c 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -904,6 +904,23 @@ static inline void dquot_resv_space(struct dquot *dquot, qsize_t number)
 	dquot->dq_dqb.dqb_rsvspace += number;
 }
 
+/*
+ * Claim reserved quota space
+ */
+static void dquot_claim_reserved_space(struct dquot *dquot,
+						qsize_t number)
+{
+	WARN_ON(dquot->dq_dqb.dqb_rsvspace < number);
+	dquot->dq_dqb.dqb_curspace += number;
+	dquot->dq_dqb.dqb_rsvspace -= number;
+}
+
+static inline
+void dquot_free_reserved_space(struct dquot *dquot, qsize_t number)
+{
+	dquot->dq_dqb.dqb_rsvspace -= number;
+}
+
 static inline void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
 {
 	if (sb_dqopt(dquot->dq_sb)->flags & DQUOT_NEGATIVE_USAGE ||
@@ -1452,6 +1469,72 @@ warn_put_all:
 	return ret;
 }
 
+int dquot_claim_space(struct inode *inode, qsize_t number)
+{
+	int cnt;
+	int ret = QUOTA_OK;
+
+	if (IS_NOQUOTA(inode)) {
+		inode_add_bytes(inode, number);
+		goto out;
+	}
+
+	down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+	if (IS_NOQUOTA(inode))	{
+		up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+		inode_add_bytes(inode, number);
+		goto out;
+	}
+
+	spin_lock(&dq_data_lock);
+	/* Claim reserved quotas to allocated quotas */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (inode->i_dquot[cnt] != NODQUOT)
+			dquot_claim_reserved_space(inode->i_dquot[cnt],
+							number);
+	}
+	/* Update inode bytes */
+	inode_add_bytes(inode, number);
+	spin_unlock(&dq_data_lock);
+	/* Dirtify all the dquots - this can block when journalling */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+		if (inode->i_dquot[cnt])
+			mark_dquot_dirty(inode->i_dquot[cnt]);
+	up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+out:
+	return ret;
+}
+EXPORT_SYMBOL(dquot_claim_space);
+
+/*
+ * Release reserved quota space
+ */
+void dquot_release_reserved_space(struct inode *inode, qsize_t number)
+{
+	int cnt;
+
+	if (IS_NOQUOTA(inode))
+		goto out;
+
+	down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+	if (IS_NOQUOTA(inode))
+		goto out_unlock;
+
+	spin_lock(&dq_data_lock);
+	/* Release reserved dquots */
+	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+		if (inode->i_dquot[cnt] != NODQUOT)
+			dquot_free_reserved_space(inode->i_dquot[cnt], number);
+	}
+	spin_unlock(&dq_data_lock);
+
+out_unlock:
+	up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+out:
+	return;
+}
+EXPORT_SYMBOL(dquot_release_reserved_space);
+
 /*
  * This operation can block, but only after everything is updated
  */
@@ -1528,6 +1611,19 @@ int dquot_free_inode(const struct inode *inode, qsize_t number)
 	return QUOTA_OK;
 }
 
+/*
+ * call back function, get reserved quota space from underlying fs
+ */
+qsize_t dquot_get_reserved_space(struct inode *inode)
+{
+	qsize_t reserved_space = 0;
+
+	if (sb_any_quota_active(inode->i_sb) &&
+	    inode->i_sb->dq_op->get_reserved_space)
+		reserved_space = inode->i_sb->dq_op->get_reserved_space(inode);
+	return reserved_space;
+}
+
 /*
  * Transfer the number of inode and blocks from one diskquota to an other.
  *
@@ -1536,7 +1632,8 @@ int dquot_free_inode(const struct inode *inode, qsize_t number)
  */
 int dquot_transfer(struct inode *inode, struct iattr *iattr)
 {
-	qsize_t space;
+	qsize_t space, cur_space;
+	qsize_t rsv_space = 0;
 	struct dquot *transfer_from[MAXQUOTAS];
 	struct dquot *transfer_to[MAXQUOTAS];
 	int cnt, ret = QUOTA_OK;
@@ -1575,7 +1672,9 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
 		goto put_all;
 	}
 	spin_lock(&dq_data_lock);
-	space = inode_get_bytes(inode);
+	cur_space = inode_get_bytes(inode);
+	rsv_space = dquot_get_reserved_space(inode);
+	space = cur_space + rsv_space;
 	/* Build the transfer_from list and check the limits */
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
 		if (transfer_to[cnt] == NODQUOT)
@@ -1604,11 +1703,14 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
 			warntype_from_space[cnt] =
 				info_bdq_free(transfer_from[cnt], space);
 			dquot_decr_inodes(transfer_from[cnt], 1);
-			dquot_decr_space(transfer_from[cnt], space);
+			dquot_decr_space(transfer_from[cnt], cur_space);
+			dquot_free_reserved_space(transfer_from[cnt],
+						  rsv_space);
 		}
 
 		dquot_incr_inodes(transfer_to[cnt], 1);
-		dquot_incr_space(transfer_to[cnt], space);
+		dquot_incr_space(transfer_to[cnt], cur_space);
+		dquot_resv_space(transfer_to[cnt], rsv_space);
 
 		inode->i_dquot[cnt] = transfer_to[cnt];
 	}
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 54b837fa64f2..a510d91561f4 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -311,6 +311,12 @@ struct dquot_operations {
 	int (*write_info) (struct super_block *, int);	/* Write of quota "superblock" */
 	/* reserve quota for delayed block allocation */
 	int (*reserve_space) (struct inode *, qsize_t, int);
+	/* claim reserved quota for delayed alloc */
+	int (*claim_space) (struct inode *, qsize_t);
+	/* release rsved quota for delayed alloc */
+	void (*release_rsv) (struct inode *, qsize_t);
+	/* get reserved quota for delayed alloc */
+	qsize_t (*get_reserved_space) (struct inode *);
 };
 
 /* Operations handling requests from userspace */
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 3e3a0d2874d9..7369d04e0a86 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -35,6 +35,11 @@ void dquot_destroy(struct dquot *dquot);
 int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);
 int dquot_alloc_inode(const struct inode *inode, qsize_t number);
 
+int dquot_reserve_space(struct inode *inode, qsize_t number, int prealloc);
+int dquot_claim_space(struct inode *inode, qsize_t number);
+void dquot_release_reserved_space(struct inode *inode, qsize_t number);
+qsize_t dquot_get_reserved_space(struct inode *inode);
+
 int dquot_free_space(struct inode *inode, qsize_t number);
 int dquot_free_inode(const struct inode *inode, qsize_t number);
 
@@ -203,6 +208,31 @@ static inline int vfs_dq_alloc_inode(struct inode *inode)
 	return 0;
 }
 
+/*
+ * Convert in-memory reserved quotas to real consumed quotas
+ */
+static inline int vfs_dq_claim_space(struct inode *inode, qsize_t nr)
+{
+	if (sb_any_quota_active(inode->i_sb)) {
+		if (inode->i_sb->dq_op->claim_space(inode, nr) == NO_QUOTA)
+			return 1;
+	} else
+		inode_add_bytes(inode, nr);
+
+	mark_inode_dirty(inode);
+	return 0;
+}
+
+/*
+ * Release reserved (in-memory) quotas
+ */
+static inline
+void vfs_dq_release_reservation_space(struct inode *inode, qsize_t nr)
+{
+	if (sb_any_quota_active(inode->i_sb))
+		inode->i_sb->dq_op->release_rsv(inode, nr);
+}
+
 static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
 {
 	if (sb_any_quota_active(inode->i_sb))
@@ -354,6 +384,17 @@ static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
 	return 0;
 }
 
+static inline int vfs_dq_claim_space(struct inode *inode, qsize_t nr)
+{
+	return vfs_dq_alloc_space(inode, nr);
+}
+
+static inline
+int vfs_dq_release_reservation_space(struct inode *inode, qsize_t nr)
+{
+	return 0;
+}
+
 static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
 {
 	inode_sub_bytes(inode, nr);
@@ -397,6 +438,18 @@ static inline int vfs_dq_reserve_block(struct inode *inode, qsize_t nr)
 			nr << inode->i_blkbits);
 }
 
+static inline int vfs_dq_claim_block(struct inode *inode, qsize_t nr)
+{
+	return vfs_dq_claim_space(inode,
+			nr << inode->i_blkbits);
+}
+
+static inline
+void vfs_dq_release_reservation_block(struct inode *inode, qsize_t nr)
+{
+	vfs_dq_release_reservation_space(inode, nr << inode->i_blkbits);
+}
+
 static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr)
 {
 	vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits);
-- 
cgit v1.2.3


From 9900ba3487f9ba392db30e12d210f768a90abb13 Mon Sep 17 00:00:00 2001
From: Mingming Cao <cmm@us.ibm.com>
Date: Wed, 14 Jan 2009 16:18:57 +0100
Subject: quota: Use inode->i_blkbits to get block bits

Andrew has suggested to use inode->i_blkbits to get the block bits info,
rather than use super block's blockbits. That should be faster and emit
less code.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 include/linux/quotaops.h | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 7369d04e0a86..69b502e5eba0 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -410,38 +410,32 @@ static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr)
 
 static inline int vfs_dq_prealloc_block_nodirty(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_prealloc_space_nodirty(inode,
-			nr << inode->i_sb->s_blocksize_bits);
+	return vfs_dq_prealloc_space_nodirty(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_prealloc_block(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_prealloc_space(inode,
-			nr << inode->i_sb->s_blocksize_bits);
+	return vfs_dq_prealloc_space(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_alloc_block_nodirty(struct inode *inode, qsize_t nr)
 {
- 	return vfs_dq_alloc_space_nodirty(inode,
-			nr << inode->i_sb->s_blocksize_bits);
+	return vfs_dq_alloc_space_nodirty(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_alloc_block(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_alloc_space(inode,
-			nr << inode->i_sb->s_blocksize_bits);
+	return vfs_dq_alloc_space(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_reserve_block(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_reserve_space(inode,
-			nr << inode->i_blkbits);
+	return vfs_dq_reserve_space(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_claim_block(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_claim_space(inode,
-			nr << inode->i_blkbits);
+	return vfs_dq_claim_space(inode, nr << inode->i_blkbits);
 }
 
 static inline
@@ -452,12 +446,12 @@ void vfs_dq_release_reservation_block(struct inode *inode, qsize_t nr)
 
 static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr)
 {
-	vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits);
+	vfs_dq_free_space_nodirty(inode, nr << inode->i_blkbits);
 }
 
 static inline void vfs_dq_free_block(struct inode *inode, qsize_t nr)
 {
-	vfs_dq_free_space(inode, nr << inode->i_sb->s_blocksize_bits);
+	vfs_dq_free_space(inode, nr << inode->i_blkbits);
 }
 
 /*
-- 
cgit v1.2.3


From dd6f3c6d5a26a282521f15a183fdc2d6f35cfa0f Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 26 Jan 2009 16:01:43 +0100
Subject: quota: Remove NODQUOT macro

Remove this macro which is just a definition of NULL. Fix a few coding style
issues along the way.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/quota/dquot.c      | 70 ++++++++++++++++++++++++++-------------------------
 include/linux/quota.h |  2 --
 2 files changed, 36 insertions(+), 36 deletions(-)

(limited to 'include')

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index e840fa2b112e..4881db32e56d 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -253,7 +253,7 @@ static inline struct dquot *find_dquot(unsigned int hashent, struct super_block
 		if (dquot->dq_sb == sb && dquot->dq_id == id && dquot->dq_type == type)
 			return dquot;
 	}
-	return NODQUOT;
+	return NULL;
 }
 
 /* Add a dquot to the tail of the free list */
@@ -696,7 +696,7 @@ static struct dquot *get_empty_dquot(struct super_block *sb, int type)
 
 	dquot = sb->dq_op->alloc_dquot(sb, type);
 	if(!dquot)
-		return NODQUOT;
+		return NULL;
 
 	mutex_init(&dquot->dq_lock);
 	INIT_LIST_HEAD(&dquot->dq_free);
@@ -722,10 +722,10 @@ static struct dquot *get_empty_dquot(struct super_block *sb, int type)
 struct dquot *dqget(struct super_block *sb, unsigned int id, int type)
 {
 	unsigned int hashent = hashfn(sb, id, type);
-	struct dquot *dquot = NODQUOT, *empty = NODQUOT;
+	struct dquot *dquot = NULL, *empty = NULL;
 
         if (!sb_has_quota_active(sb, type))
-		return NODQUOT;
+		return NULL;
 we_slept:
 	spin_lock(&dq_list_lock);
 	spin_lock(&dq_state_lock);
@@ -736,15 +736,17 @@ we_slept:
 	}
 	spin_unlock(&dq_state_lock);
 
-	if ((dquot = find_dquot(hashent, sb, id, type)) == NODQUOT) {
-		if (empty == NODQUOT) {
+	dquot = find_dquot(hashent, sb, id, type);
+	if (!dquot) {
+		if (!empty) {
 			spin_unlock(&dq_list_lock);
-			if ((empty = get_empty_dquot(sb, type)) == NODQUOT)
+			empty = get_empty_dquot(sb, type);
+			if (!empty)
 				schedule();	/* Try to wait for a moment... */
 			goto we_slept;
 		}
 		dquot = empty;
-		empty = NODQUOT;
+		empty = NULL;
 		dquot->dq_id = id;
 		/* all dquots go on the inuse_list */
 		put_inuse(dquot);
@@ -766,7 +768,7 @@ we_slept:
 	/* Read the dquot and instantiate it (everything done only if needed) */
 	if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && sb->dq_op->acquire_dquot(dquot) < 0) {
 		dqput(dquot);
-		dquot = NODQUOT;
+		dquot = NULL;
 		goto out;
 	}
 #ifdef __DQUOT_PARANOIA
@@ -787,9 +789,9 @@ static int dqinit_needed(struct inode *inode, int type)
 	if (IS_NOQUOTA(inode))
 		return 0;
 	if (type != -1)
-		return inode->i_dquot[type] == NODQUOT;
+		return !inode->i_dquot[type];
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
-		if (inode->i_dquot[cnt] == NODQUOT)
+		if (!inode->i_dquot[cnt])
 			return 1;
 	return 0;
 }
@@ -840,8 +842,8 @@ static int remove_inode_dquot_ref(struct inode *inode, int type,
 {
 	struct dquot *dquot = inode->i_dquot[type];
 
-	inode->i_dquot[type] = NODQUOT;
-	if (dquot != NODQUOT) {
+	inode->i_dquot[type] = NULL;
+	if (dquot) {
 		if (dqput_blocks(dquot)) {
 #ifdef __DQUOT_PARANOIA
 			if (atomic_read(&dquot->dq_count) != 1)
@@ -1112,7 +1114,7 @@ static inline void flush_warnings(struct dquot * const *dquots, char *warntype)
 	int i;
 
 	for (i = 0; i < MAXQUOTAS; i++)
-		if (dquots[i] != NODQUOT && warntype[i] != QUOTA_NL_NOWARN &&
+		if (dquots[i] && warntype[i] != QUOTA_NL_NOWARN &&
 		    !warning_issued(dquots[i], warntype[i])) {
 #ifdef CONFIG_PRINT_QUOTA_WARNING
 			print_warning(dquots[i], warntype[i]);
@@ -1249,7 +1251,7 @@ int dquot_initialize(struct inode *inode, int type)
 {
 	unsigned int id = 0;
 	int cnt, ret = 0;
-	struct dquot *got[MAXQUOTAS] = { NODQUOT, NODQUOT };
+	struct dquot *got[MAXQUOTAS] = { NULL, NULL };
 	struct super_block *sb = inode->i_sb;
 
 	/* First test before acquiring mutex - solves deadlocks when we
@@ -1282,9 +1284,9 @@ int dquot_initialize(struct inode *inode, int type)
 		/* Avoid races with quotaoff() */
 		if (!sb_has_quota_active(sb, cnt))
 			continue;
-		if (inode->i_dquot[cnt] == NODQUOT) {
+		if (!inode->i_dquot[cnt]) {
 			inode->i_dquot[cnt] = got[cnt];
-			got[cnt] = NODQUOT;
+			got[cnt] = NULL;
 		}
 	}
 out_err:
@@ -1307,7 +1309,7 @@ int dquot_drop(struct inode *inode)
 	down_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
 		put[cnt] = inode->i_dquot[cnt];
-		inode->i_dquot[cnt] = NODQUOT;
+		inode->i_dquot[cnt] = NULL;
 	}
 	up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
 
@@ -1332,7 +1334,7 @@ void vfs_dq_drop(struct inode *inode)
 		 * must assure that nobody can come after the DQUOT_DROP and
 		 * add quota pointers back anyway */
 		for (cnt = 0; cnt < MAXQUOTAS; cnt++)
-			if (inode->i_dquot[cnt] != NODQUOT)
+			if (inode->i_dquot[cnt])
 				break;
 		if (cnt < MAXQUOTAS)
 			inode->i_sb->dq_op->drop(inode);
@@ -1363,7 +1365,7 @@ int __dquot_alloc_space(struct inode *inode, qsize_t number,
 
 	spin_lock(&dq_data_lock);
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (inode->i_dquot[cnt] == NODQUOT)
+		if (!inode->i_dquot[cnt])
 			continue;
 		if (check_bdq(inode->i_dquot[cnt], number, warn, warntype+cnt)
 		    == NO_QUOTA) {
@@ -1372,7 +1374,7 @@ int __dquot_alloc_space(struct inode *inode, qsize_t number,
 		}
 	}
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (inode->i_dquot[cnt] == NODQUOT)
+		if (!inode->i_dquot[cnt])
 			continue;
 		if (reserve)
 			dquot_resv_space(inode->i_dquot[cnt], number);
@@ -1461,14 +1463,14 @@ int dquot_alloc_inode(const struct inode *inode, qsize_t number)
 	}
 	spin_lock(&dq_data_lock);
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (inode->i_dquot[cnt] == NODQUOT)
+		if (!inode->i_dquot[cnt])
 			continue;
 		if (check_idq(inode->i_dquot[cnt], number, warntype+cnt) == NO_QUOTA)
 			goto warn_put_all;
 	}
 
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (inode->i_dquot[cnt] == NODQUOT)
+		if (!inode->i_dquot[cnt])
 			continue;
 		dquot_incr_inodes(inode->i_dquot[cnt], number);
 	}
@@ -1506,7 +1508,7 @@ int dquot_claim_space(struct inode *inode, qsize_t number)
 	spin_lock(&dq_data_lock);
 	/* Claim reserved quotas to allocated quotas */
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (inode->i_dquot[cnt] != NODQUOT)
+		if (inode->i_dquot[cnt])
 			dquot_claim_reserved_space(inode->i_dquot[cnt],
 							number);
 	}
@@ -1540,7 +1542,7 @@ void dquot_release_reserved_space(struct inode *inode, qsize_t number)
 	spin_lock(&dq_data_lock);
 	/* Release reserved dquots */
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (inode->i_dquot[cnt] != NODQUOT)
+		if (inode->i_dquot[cnt])
 			dquot_free_reserved_space(inode->i_dquot[cnt], number);
 	}
 	spin_unlock(&dq_data_lock);
@@ -1576,7 +1578,7 @@ out_sub:
 	}
 	spin_lock(&dq_data_lock);
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (inode->i_dquot[cnt] == NODQUOT)
+		if (!inode->i_dquot[cnt])
 			continue;
 		warntype[cnt] = info_bdq_free(inode->i_dquot[cnt], number);
 		dquot_decr_space(inode->i_dquot[cnt], number);
@@ -1614,7 +1616,7 @@ int dquot_free_inode(const struct inode *inode, qsize_t number)
 	}
 	spin_lock(&dq_data_lock);
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (inode->i_dquot[cnt] == NODQUOT)
+		if (!inode->i_dquot[cnt])
 			continue;
 		warntype[cnt] = info_idq_free(inode->i_dquot[cnt], number);
 		dquot_decr_inodes(inode->i_dquot[cnt], number);
@@ -1667,8 +1669,8 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
 		return QUOTA_OK;
 	/* Initialize the arrays */
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		transfer_from[cnt] = NODQUOT;
-		transfer_to[cnt] = NODQUOT;
+		transfer_from[cnt] = NULL;
+		transfer_to[cnt] = NULL;
 		warntype_to[cnt] = QUOTA_NL_NOWARN;
 		switch (cnt) {
 			case USRQUOTA:
@@ -1696,7 +1698,7 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
 	space = cur_space + rsv_space;
 	/* Build the transfer_from list and check the limits */
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
-		if (transfer_to[cnt] == NODQUOT)
+		if (!transfer_to[cnt])
 			continue;
 		transfer_from[cnt] = inode->i_dquot[cnt];
 		if (check_idq(transfer_to[cnt], 1, warntype_to + cnt) ==
@@ -1712,7 +1714,7 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
 		/*
 		 * Skip changes for same uid or gid or for turned off quota-type.
 		 */
-		if (transfer_to[cnt] == NODQUOT)
+		if (!transfer_to[cnt])
 			continue;
 
 		/* Due to IO error we might not have transfer_from[] structure */
@@ -1743,7 +1745,7 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
 		if (transfer_to[cnt]) {
 			mark_dquot_dirty(transfer_to[cnt]);
 			/* The reference we got is transferred to the inode */
-			transfer_to[cnt] = NODQUOT;
+			transfer_to[cnt] = NULL;
 		}
 	}
 warn_put_all:
@@ -1761,7 +1763,7 @@ over_quota:
 	up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
 	/* Clear dquot pointers we don't want to dqput() */
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++)
-		transfer_from[cnt] = NODQUOT;
+		transfer_from[cnt] = NULL;
 	ret = NO_QUOTA;
 	goto warn_put_all;
 }
@@ -2256,7 +2258,7 @@ int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *d
 	struct dquot *dquot;
 
 	dquot = dqget(sb, id, type);
-	if (dquot == NODQUOT)
+	if (!dquot)
 		return -ESRCH;
 	do_get_dqblk(dquot, di);
 	dqput(dquot);
diff --git a/include/linux/quota.h b/include/linux/quota.h
index a510d91561f4..78c48895b12a 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -277,8 +277,6 @@ struct dquot {
 	struct mem_dqblk dq_dqb;	/* Diskquota usage */
 };
 
-#define NODQUOT (struct dquot *)NULL
-
 #define QUOTA_OK          0
 #define NO_QUOTA          1
 
-- 
cgit v1.2.3


From bf84c82d000b9820b01f516d13d328f354f8a8ee Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 26 Jan 2009 17:37:01 +0100
Subject: quota: Remove uppercase aliases for quota functions.

Since all users have been converted, remove uppercase names of quota functions.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 include/linux/quotaops.h | 31 -------------------------------
 1 file changed, 31 deletions(-)

(limited to 'include')

diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 69b502e5eba0..36353d95c8db 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -454,35 +454,4 @@ static inline void vfs_dq_free_block(struct inode *inode, qsize_t nr)
 	vfs_dq_free_space(inode, nr << inode->i_blkbits);
 }
 
-/*
- * Define uppercase equivalents for compatibility with old function names
- * Can go away when we think all users have been converted (15/04/2008)
- */
-#define DQUOT_INIT(inode) vfs_dq_init(inode)
-#define DQUOT_DROP(inode) vfs_dq_drop(inode)
-#define DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr) \
-				vfs_dq_prealloc_space_nodirty(inode, nr)
-#define DQUOT_PREALLOC_SPACE(inode, nr) vfs_dq_prealloc_space(inode, nr)
-#define DQUOT_ALLOC_SPACE_NODIRTY(inode, nr) \
-				vfs_dq_alloc_space_nodirty(inode, nr)
-#define DQUOT_ALLOC_SPACE(inode, nr) vfs_dq_alloc_space(inode, nr)
-#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr) \
-				vfs_dq_prealloc_block_nodirty(inode, nr)
-#define DQUOT_PREALLOC_BLOCK(inode, nr) vfs_dq_prealloc_block(inode, nr)
-#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr) \
-				vfs_dq_alloc_block_nodirty(inode, nr)
-#define DQUOT_ALLOC_BLOCK(inode, nr) vfs_dq_alloc_block(inode, nr)
-#define DQUOT_ALLOC_INODE(inode) vfs_dq_alloc_inode(inode)
-#define DQUOT_FREE_SPACE_NODIRTY(inode, nr) \
-				vfs_dq_free_space_nodirty(inode, nr)
-#define DQUOT_FREE_SPACE(inode, nr) vfs_dq_free_space(inode, nr)
-#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) \
-				vfs_dq_free_block_nodirty(inode, nr)
-#define DQUOT_FREE_BLOCK(inode, nr) vfs_dq_free_block(inode, nr)
-#define DQUOT_FREE_INODE(inode) vfs_dq_free_inode(inode)
-#define DQUOT_TRANSFER(inode, iattr) vfs_dq_transfer(inode, iattr)
-#define DQUOT_SYNC(sb) vfs_dq_sync(sb)
-#define DQUOT_OFF(sb, remount) vfs_dq_off(sb, remount)
-#define DQUOT_ON_REMOUNT(sb) vfs_dq_quota_on_remount(sb)
-
 #endif /* _LINUX_QUOTAOPS_ */
-- 
cgit v1.2.3


From 9d50638bae05ab7f62d700c9e4a83a1845cf9ef4 Mon Sep 17 00:00:00 2001
From: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Date: Sun, 8 Feb 2009 11:00:25 +0530
Subject: unconditionally include asm/types.h from linux/types.h

Reported-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/types.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/types.h b/include/linux/types.h
index c30973ace890..fca82ed55f49 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_TYPES_H
 #define _LINUX_TYPES_H
 
+#include <asm/types.h>
+
 #ifndef __ASSEMBLY__
 #ifdef	__KERNEL__
 
@@ -10,7 +12,6 @@
 #endif
 
 #include <linux/posix_types.h>
-#include <asm/types.h>
 
 #ifndef __KERNEL_STRICT_NAMES
 
-- 
cgit v1.2.3


From 85efde6f4e0de9577256c5f0030088d3fd4347c1 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 26 Feb 2009 00:51:39 +0100
Subject: make exported headers use strict posix types

A number of standard posix types are used in exported headers, which
is not allowed if __STRICT_KERNEL_NAMES is defined. In order to
get rid of the non-__STRICT_KERNEL_NAMES part and to make sane headers
the default, we have to change them all to safe types.

There are also still some leftovers in reiserfs_fs.h, elfcore.h
and coda.h, but these files have not compiled in user space for
a long time.

This leaves out the various integer types ({u_,u,}int{8,16,32,64}_t),
which we take care of separately.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Cc: netdev@vger.kernel.org
Cc: linux-ppp@vger.kernel.org
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/asm-generic/fcntl.h               | 12 ++++++------
 include/asm-generic/siginfo.h             | 14 +++++++-------
 include/linux/agpgart.h                   | 14 +++++++-------
 include/linux/cn_proc.h                   | 20 ++++++++++----------
 include/linux/cyclades.h                  |  6 +++---
 include/linux/dvb/video.h                 |  2 +-
 include/linux/if_pppol2tp.h               |  2 +-
 include/linux/mroute6.h                   |  2 +-
 include/linux/netfilter_ipv4/ipt_owner.h  |  8 ++++----
 include/linux/netfilter_ipv6/ip6t_owner.h |  8 ++++----
 include/linux/ppp_defs.h                  |  4 ++--
 include/linux/suspend_ioctls.h            | 11 ++++++-----
 include/linux/time.h                      |  8 ++++----
 include/linux/times.h                     |  8 ++++----
 include/linux/utime.h                     |  4 ++--
 include/linux/xfrm.h                      |  2 +-
 include/mtd/mtd-abi.h                     |  4 ++--
 include/sound/asound.h                    |  4 ++--
 18 files changed, 67 insertions(+), 66 deletions(-)

(limited to 'include')

diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index b8477414c5c8..4d3e48373e74 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -117,9 +117,9 @@
 struct flock {
 	short	l_type;
 	short	l_whence;
-	off_t	l_start;
-	off_t	l_len;
-	pid_t	l_pid;
+	__kernel_off_t	l_start;
+	__kernel_off_t	l_len;
+	__kernel_pid_t	l_pid;
 	__ARCH_FLOCK_PAD
 };
 #endif
@@ -140,9 +140,9 @@ struct flock {
 struct flock64 {
 	short  l_type;
 	short  l_whence;
-	loff_t l_start;
-	loff_t l_len;
-	pid_t  l_pid;
+	__kernel_loff_t l_start;
+	__kernel_loff_t l_len;
+	__kernel_pid_t  l_pid;
 	__ARCH_FLOCK64_PAD
 };
 #endif
diff --git a/include/asm-generic/siginfo.h b/include/asm-generic/siginfo.h
index 969570167e9e..35752dadd6df 100644
--- a/include/asm-generic/siginfo.h
+++ b/include/asm-generic/siginfo.h
@@ -23,7 +23,7 @@ typedef union sigval {
 #endif
 
 #ifndef __ARCH_SI_UID_T
-#define __ARCH_SI_UID_T	uid_t
+#define __ARCH_SI_UID_T	__kernel_uid32_t
 #endif
 
 /*
@@ -47,13 +47,13 @@ typedef struct siginfo {
 
 		/* kill() */
 		struct {
-			pid_t _pid;		/* sender's pid */
+			__kernel_pid_t _pid;	/* sender's pid */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 		} _kill;
 
 		/* POSIX.1b timers */
 		struct {
-			timer_t _tid;		/* timer id */
+			__kernel_timer_t _tid;	/* timer id */
 			int _overrun;		/* overrun count */
 			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
 			sigval_t _sigval;	/* same as below */
@@ -62,18 +62,18 @@ typedef struct siginfo {
 
 		/* POSIX.1b signals */
 		struct {
-			pid_t _pid;		/* sender's pid */
+			__kernel_pid_t _pid;	/* sender's pid */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 			sigval_t _sigval;
 		} _rt;
 
 		/* SIGCHLD */
 		struct {
-			pid_t _pid;		/* which child */
+			__kernel_pid_t _pid;	/* which child */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 			int _status;		/* exit code */
-			clock_t _utime;
-			clock_t _stime;
+			__kernel_clock_t _utime;
+			__kernel_clock_t _stime;
 		} _sigchld;
 
 		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
diff --git a/include/linux/agpgart.h b/include/linux/agpgart.h
index 110c600c885f..f6778eceb8f4 100644
--- a/include/linux/agpgart.h
+++ b/include/linux/agpgart.h
@@ -77,20 +77,20 @@ typedef struct _agp_setup {
  * The "prot" down below needs still a "sleep" flag somehow ...
  */
 typedef struct _agp_segment {
-	off_t pg_start;		/* starting page to populate    */
-	size_t pg_count;	/* number of pages              */
-	int prot;		/* prot flags for mmap          */
+	__kernel_off_t pg_start;	/* starting page to populate    */
+	__kernel_size_t pg_count;	/* number of pages              */
+	int prot;			/* prot flags for mmap          */
 } agp_segment;
 
 typedef struct _agp_region {
-	pid_t pid;		/* pid of process               */
-	size_t seg_count;	/* number of segments           */
+	__kernel_pid_t pid;		/* pid of process       */
+	__kernel_size_t seg_count;	/* number of segments   */
 	struct _agp_segment *seg_list;
 } agp_region;
 
 typedef struct _agp_allocate {
 	int key;		/* tag of allocation            */
-	size_t pg_count;	/* number of pages              */
+	__kernel_size_t pg_count;/* number of pages             */
 	__u32 type;		/* 0 == normal, other devspec   */
    	__u32 physical;         /* device specific (some devices  
 				 * need a phys address of the     
@@ -100,7 +100,7 @@ typedef struct _agp_allocate {
 
 typedef struct _agp_bind {
 	int key;		/* tag of allocation            */
-	off_t pg_start;		/* starting page to populate    */
+	__kernel_off_t pg_start;/* starting page to populate    */
 } agp_bind;
 
 typedef struct _agp_unbind {
diff --git a/include/linux/cn_proc.h b/include/linux/cn_proc.h
index 1c86d65bc4b9..b8125b2eb665 100644
--- a/include/linux/cn_proc.h
+++ b/include/linux/cn_proc.h
@@ -65,20 +65,20 @@ struct proc_event {
 		} ack;
 
 		struct fork_proc_event {
-			pid_t parent_pid;
-			pid_t parent_tgid;
-			pid_t child_pid;
-			pid_t child_tgid;
+			__kernel_pid_t parent_pid;
+			__kernel_pid_t parent_tgid;
+			__kernel_pid_t child_pid;
+			__kernel_pid_t child_tgid;
 		} fork;
 
 		struct exec_proc_event {
-			pid_t process_pid;
-			pid_t process_tgid;
+			__kernel_pid_t process_pid;
+			__kernel_pid_t process_tgid;
 		} exec;
 
 		struct id_proc_event {
-			pid_t process_pid;
-			pid_t process_tgid;
+			__kernel_pid_t process_pid;
+			__kernel_pid_t process_tgid;
 			union {
 				__u32 ruid; /* task uid */
 				__u32 rgid; /* task gid */
@@ -90,8 +90,8 @@ struct proc_event {
 		} id;
 
 		struct exit_proc_event {
-			pid_t process_pid;
-			pid_t process_tgid;
+			__kernel_pid_t process_pid;
+			__kernel_pid_t process_tgid;
 			__u32 exit_code, exit_signal;
 		} exit;
 	} event_data;
diff --git a/include/linux/cyclades.h b/include/linux/cyclades.h
index d06fbf286346..788850ba4e75 100644
--- a/include/linux/cyclades.h
+++ b/include/linux/cyclades.h
@@ -82,9 +82,9 @@ struct cyclades_monitor {
  * open)
  */
 struct cyclades_idle_stats {
-    time_t	   in_use;	/* Time device has been in use (secs) */
-    time_t	   recv_idle;	/* Time since last char received (secs) */
-    time_t	   xmit_idle;	/* Time since last char transmitted (secs) */
+    __kernel_time_t in_use;	/* Time device has been in use (secs) */
+    __kernel_time_t recv_idle;	/* Time since last char received (secs) */
+    __kernel_time_t xmit_idle;	/* Time since last char transmitted (secs) */
     unsigned long  recv_bytes;	/* Bytes received */
     unsigned long  xmit_bytes;	/* Bytes transmitted */
     unsigned long  overruns;	/* Input overruns */
diff --git a/include/linux/dvb/video.h b/include/linux/dvb/video.h
index bd49c3ebf916..ee5d2df2d78d 100644
--- a/include/linux/dvb/video.h
+++ b/include/linux/dvb/video.h
@@ -137,7 +137,7 @@ struct video_event {
 #define VIDEO_EVENT_FRAME_RATE_CHANGED	2
 #define VIDEO_EVENT_DECODER_STOPPED 	3
 #define VIDEO_EVENT_VSYNC 		4
-	time_t timestamp;
+	__kernel_time_t timestamp;
 	union {
 		video_size_t size;
 		unsigned int frame_rate;	/* in frames per 1000sec */
diff --git a/include/linux/if_pppol2tp.h b/include/linux/if_pppol2tp.h
index c7a66882b6d0..3a14b088c8ec 100644
--- a/include/linux/if_pppol2tp.h
+++ b/include/linux/if_pppol2tp.h
@@ -26,7 +26,7 @@
  */
 struct pppol2tp_addr
 {
-	pid_t	pid;			/* pid that owns the fd.
+	__kernel_pid_t	pid;		/* pid that owns the fd.
 					 * 0 => current */
 	int	fd;			/* FD of UDP socket to use */
 
diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h
index 5375faca1f72..43dc97e32183 100644
--- a/include/linux/mroute6.h
+++ b/include/linux/mroute6.h
@@ -65,7 +65,7 @@ struct mif6ctl {
 	mifi_t	mif6c_mifi;		/* Index of MIF */
 	unsigned char mif6c_flags;	/* MIFF_ flags */
 	unsigned char vifc_threshold;	/* ttl limit */
-	u_short	 mif6c_pifi;		/* the index of the physical IF */
+	__u16	 mif6c_pifi;		/* the index of the physical IF */
 	unsigned int vifc_rate_limit;	/* Rate limiter values (NI) */
 };
 
diff --git a/include/linux/netfilter_ipv4/ipt_owner.h b/include/linux/netfilter_ipv4/ipt_owner.h
index 92f4bdac54ef..a78445be9992 100644
--- a/include/linux/netfilter_ipv4/ipt_owner.h
+++ b/include/linux/netfilter_ipv4/ipt_owner.h
@@ -9,10 +9,10 @@
 #define IPT_OWNER_COMM	0x10
 
 struct ipt_owner_info {
-    uid_t uid;
-    gid_t gid;
-    pid_t pid;
-    pid_t sid;
+    __kernel_uid32_t uid;
+    __kernel_gid32_t gid;
+    __kernel_pid_t pid;
+    __kernel_pid_t sid;
     char comm[16];
     u_int8_t match, invert;	/* flags */
 };
diff --git a/include/linux/netfilter_ipv6/ip6t_owner.h b/include/linux/netfilter_ipv6/ip6t_owner.h
index 19937da3d101..ec5cc7a38c42 100644
--- a/include/linux/netfilter_ipv6/ip6t_owner.h
+++ b/include/linux/netfilter_ipv6/ip6t_owner.h
@@ -8,10 +8,10 @@
 #define IP6T_OWNER_SID	0x08
 
 struct ip6t_owner_info {
-    uid_t uid;
-    gid_t gid;
-    pid_t pid;
-    pid_t sid;
+    __kernel_uid32_t uid;
+    __kernel_gid32_t gid;
+    __kernel_pid_t pid;
+    __kernel_pid_t sid;
     u_int8_t match, invert;	/* flags */
 };
 
diff --git a/include/linux/ppp_defs.h b/include/linux/ppp_defs.h
index 1c866bda2018..0f93ed6b4a88 100644
--- a/include/linux/ppp_defs.h
+++ b/include/linux/ppp_defs.h
@@ -177,8 +177,8 @@ struct ppp_comp_stats {
  * the last NP packet was sent or received.
  */
 struct ppp_idle {
-    time_t xmit_idle;		/* time since last NP packet sent */
-    time_t recv_idle;		/* time since last NP packet received */
+    __kernel_time_t xmit_idle;	/* time since last NP packet sent */
+    __kernel_time_t recv_idle;	/* time since last NP packet received */
 };
 
 #endif /* _PPP_DEFS_H_ */
diff --git a/include/linux/suspend_ioctls.h b/include/linux/suspend_ioctls.h
index 2c6faec96bde..0b30382984fe 100644
--- a/include/linux/suspend_ioctls.h
+++ b/include/linux/suspend_ioctls.h
@@ -1,14 +1,15 @@
 #ifndef _LINUX_SUSPEND_IOCTLS_H
 #define _LINUX_SUSPEND_IOCTLS_H
 
+#include <linux/types.h>
 /*
  * This structure is used to pass the values needed for the identification
  * of the resume swap area from a user space to the kernel via the
  * SNAPSHOT_SET_SWAP_AREA ioctl
  */
 struct resume_swap_area {
-	loff_t offset;
-	u_int32_t dev;
+	__kernel_loff_t offset;
+	__u32 dev;
 } __attribute__((packed));
 
 #define SNAPSHOT_IOC_MAGIC	'3'
@@ -20,13 +21,13 @@ struct resume_swap_area {
 #define SNAPSHOT_S2RAM			_IO(SNAPSHOT_IOC_MAGIC, 11)
 #define SNAPSHOT_SET_SWAP_AREA		_IOW(SNAPSHOT_IOC_MAGIC, 13, \
 							struct resume_swap_area)
-#define SNAPSHOT_GET_IMAGE_SIZE		_IOR(SNAPSHOT_IOC_MAGIC, 14, loff_t)
+#define SNAPSHOT_GET_IMAGE_SIZE		_IOR(SNAPSHOT_IOC_MAGIC, 14, __kernel_loff_t)
 #define SNAPSHOT_PLATFORM_SUPPORT	_IO(SNAPSHOT_IOC_MAGIC, 15)
 #define SNAPSHOT_POWER_OFF		_IO(SNAPSHOT_IOC_MAGIC, 16)
 #define SNAPSHOT_CREATE_IMAGE		_IOW(SNAPSHOT_IOC_MAGIC, 17, int)
 #define SNAPSHOT_PREF_IMAGE_SIZE	_IO(SNAPSHOT_IOC_MAGIC, 18)
-#define SNAPSHOT_AVAIL_SWAP_SIZE	_IOR(SNAPSHOT_IOC_MAGIC, 19, loff_t)
-#define SNAPSHOT_ALLOC_SWAP_PAGE	_IOR(SNAPSHOT_IOC_MAGIC, 20, loff_t)
+#define SNAPSHOT_AVAIL_SWAP_SIZE	_IOR(SNAPSHOT_IOC_MAGIC, 19, __kernel_loff_t)
+#define SNAPSHOT_ALLOC_SWAP_PAGE	_IOR(SNAPSHOT_IOC_MAGIC, 20, __kernel_loff_t)
 #define SNAPSHOT_IOC_MAXNR	20
 
 #endif /* _LINUX_SUSPEND_IOCTLS_H */
diff --git a/include/linux/time.h b/include/linux/time.h
index fbbd2a1c92ba..242f62499bb7 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -12,14 +12,14 @@
 #ifndef _STRUCT_TIMESPEC
 #define _STRUCT_TIMESPEC
 struct timespec {
-	time_t	tv_sec;		/* seconds */
-	long	tv_nsec;	/* nanoseconds */
+	__kernel_time_t	tv_sec;			/* seconds */
+	long		tv_nsec;		/* nanoseconds */
 };
 #endif
 
 struct timeval {
-	time_t		tv_sec;		/* seconds */
-	suseconds_t	tv_usec;	/* microseconds */
+	__kernel_time_t		tv_sec;		/* seconds */
+	__kernel_suseconds_t	tv_usec;	/* microseconds */
 };
 
 struct timezone {
diff --git a/include/linux/times.h b/include/linux/times.h
index e2d3020742a6..87b62615cedd 100644
--- a/include/linux/times.h
+++ b/include/linux/times.h
@@ -4,10 +4,10 @@
 #include <linux/types.h>
 
 struct tms {
-	clock_t tms_utime;
-	clock_t tms_stime;
-	clock_t tms_cutime;
-	clock_t tms_cstime;
+	__kernel_clock_t tms_utime;
+	__kernel_clock_t tms_stime;
+	__kernel_clock_t tms_cutime;
+	__kernel_clock_t tms_cstime;
 };
 
 #endif
diff --git a/include/linux/utime.h b/include/linux/utime.h
index 640be6a1959e..5cdf673afbdb 100644
--- a/include/linux/utime.h
+++ b/include/linux/utime.h
@@ -4,8 +4,8 @@
 #include <linux/types.h>
 
 struct utimbuf {
-	time_t actime;
-	time_t modtime;
+	__kernel_time_t actime;
+	__kernel_time_t modtime;
 };
 
 #endif
diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index 52f3abd453a1..2d4ec15abaca 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -58,7 +58,7 @@ struct xfrm_selector
 	__u8	prefixlen_s;
 	__u8	proto;
 	int	ifindex;
-	uid_t	user;
+	__kernel_uid32_t	user;
 };
 
 #define XFRM_INF (~(__u64)0)
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index c6c61cd5a254..fb672013299c 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -84,8 +84,8 @@ struct otp_info {
 #define MEMGETREGIONINFO	_IOWR('M', 8, struct region_info_user)
 #define MEMSETOOBSEL		_IOW('M', 9, struct nand_oobinfo)
 #define MEMGETOOBSEL		_IOR('M', 10, struct nand_oobinfo)
-#define MEMGETBADBLOCK		_IOW('M', 11, loff_t)
-#define MEMSETBADBLOCK		_IOW('M', 12, loff_t)
+#define MEMGETBADBLOCK		_IOW('M', 11, __kernel_loff_t)
+#define MEMSETBADBLOCK		_IOW('M', 12, __kernel_loff_t)
 #define OTPSELECT		_IOR('M', 13, int)
 #define OTPGETREGIONCOUNT	_IOW('M', 14, int)
 #define OTPGETREGIONINFO	_IOW('M', 15, struct otp_info)
diff --git a/include/sound/asound.h b/include/sound/asound.h
index 1c02ed1d7c4a..16684c5a608c 100644
--- a/include/sound/asound.h
+++ b/include/sound/asound.h
@@ -385,7 +385,7 @@ struct snd_pcm_sw_params {
 
 struct snd_pcm_channel_info {
 	unsigned int channel;
-	off_t offset;			/* mmap offset */
+	__kernel_off_t offset;		/* mmap offset */
 	unsigned int first;		/* offset to first sample in bits */
 	unsigned int step;		/* samples distance in bits */
 };
@@ -789,7 +789,7 @@ struct snd_ctl_elem_info {
 	snd_ctl_elem_type_t type;	/* R: value type - SNDRV_CTL_ELEM_TYPE_* */
 	unsigned int access;		/* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
 	unsigned int count;		/* count of values */
-	pid_t owner;			/* owner's PID of this control */
+	__kernel_pid_t owner;		/* owner's PID of this control */
 	union {
 		struct {
 			long min;		/* R: minimum value */
-- 
cgit v1.2.3


From 9adfbfb611307060db54691bc7e6d53fdc12312b Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 26 Feb 2009 00:51:40 +0100
Subject: make most exported headers use strict integer types

This takes care of all files that have only a small number
of non-strict integer type uses.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Cc: netdev@vger.kernel.org
Cc: linux-ppp@vger.kernel.org
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/atmlec.h          |   5 +-
 include/linux/atmmpc.h          |  45 ++++----
 include/linux/cm4000_cs.h       |  10 +-
 include/linux/dlm_netlink.h     |  18 +--
 include/linux/dm-ioctl.h        |  42 +++----
 include/linux/dvb/audio.h       |   2 +-
 include/linux/dvb/video.h       |  22 ++--
 include/linux/if_arcnet.h       |  27 ++---
 include/linux/ip_vs.h           |  26 ++---
 include/linux/ivtvfb.h          |   2 +-
 include/linux/matroxfb.h        |   2 +-
 include/linux/pfkeyv2.h         | 242 ++++++++++++++++++++--------------------
 include/linux/selinux_netlink.h |   6 +-
 include/sound/asound.h          |   5 +-
 include/sound/emu10k1.h         |  12 +-
 15 files changed, 240 insertions(+), 226 deletions(-)

(limited to 'include')

diff --git a/include/linux/atmlec.h b/include/linux/atmlec.h
index 6f5a1bab8f50..39c917fd1b96 100644
--- a/include/linux/atmlec.h
+++ b/include/linux/atmlec.h
@@ -11,6 +11,7 @@
 #include <linux/atmioc.h>
 #include <linux/atm.h>
 #include <linux/if_ether.h>
+#include <linux/types.h>
 
 /* ATM lec daemon control socket */
 #define ATMLEC_CTRL	_IO('a', ATMIOC_LANE)
@@ -78,8 +79,8 @@ struct atmlec_msg {
 		} normal;
 		struct atmlec_config_msg config;
 		struct {
-			uint16_t lec_id;			/* requestor lec_id  */
-			uint32_t tran_id;			/* transaction id    */
+			__u16 lec_id;				/* requestor lec_id  */
+			__u32 tran_id;				/* transaction id    */
 			unsigned char mac_addr[ETH_ALEN];	/* dst mac addr      */
 			unsigned char atm_addr[ATM_ESA_LEN];	/* reqestor ATM addr */
 		} proxy;	/*
diff --git a/include/linux/atmmpc.h b/include/linux/atmmpc.h
index ea1650425a12..2aba5787fa63 100644
--- a/include/linux/atmmpc.h
+++ b/include/linux/atmmpc.h
@@ -4,6 +4,7 @@
 #include <linux/atmapi.h>
 #include <linux/atmioc.h>
 #include <linux/atm.h>
+#include <linux/types.h>
 
 #define ATMMPC_CTRL _IO('a', ATMIOC_MPOA)
 #define ATMMPC_DATA _IO('a', ATMIOC_MPOA+1)
@@ -18,39 +19,39 @@ struct atmmpc_ioc {
 };
 
 typedef struct in_ctrl_info {
-        uint8_t   Last_NHRP_CIE_code;
-        uint8_t   Last_Q2931_cause_value;     
-        uint8_t   eg_MPC_ATM_addr[ATM_ESA_LEN];
+        __u8   Last_NHRP_CIE_code;
+        __u8   Last_Q2931_cause_value;
+        __u8   eg_MPC_ATM_addr[ATM_ESA_LEN];
         __be32  tag;
         __be32  in_dst_ip;      /* IP address this ingress MPC sends packets to */
-        uint16_t  holding_time;
-        uint32_t  request_id;
+        __u16  holding_time;
+        __u32  request_id;
 } in_ctrl_info;
 
 typedef struct eg_ctrl_info {
-        uint8_t   DLL_header[256];
-        uint8_t   DH_length;
+        __u8   DLL_header[256];
+        __u8   DH_length;
         __be32  cache_id;
         __be32  tag;
         __be32  mps_ip;
         __be32  eg_dst_ip;      /* IP address to which ingress MPC sends packets */
-        uint8_t   in_MPC_data_ATM_addr[ATM_ESA_LEN];
-        uint16_t  holding_time;
+        __u8   in_MPC_data_ATM_addr[ATM_ESA_LEN];
+        __u16  holding_time;
 } eg_ctrl_info;
 
 struct mpc_parameters {
-        uint16_t mpc_p1;   /* Shortcut-Setup Frame Count    */
-        uint16_t mpc_p2;   /* Shortcut-Setup Frame Time     */
-        uint8_t mpc_p3[8]; /* Flow-detection Protocols      */
-        uint16_t mpc_p4;   /* MPC Initial Retry Time        */
-        uint16_t mpc_p5;   /* MPC Retry Time Maximum        */
-        uint16_t mpc_p6;   /* Hold Down Time                */      
+        __u16 mpc_p1;   /* Shortcut-Setup Frame Count    */
+        __u16 mpc_p2;   /* Shortcut-Setup Frame Time     */
+        __u8 mpc_p3[8]; /* Flow-detection Protocols      */
+        __u16 mpc_p4;   /* MPC Initial Retry Time        */
+        __u16 mpc_p5;   /* MPC Retry Time Maximum        */
+        __u16 mpc_p6;   /* Hold Down Time                */
 } ;
 
 struct k_message {
-        uint16_t type;
+        __u16 type;
         __be32 ip_mask;
-        uint8_t  MPS_ctrl[ATM_ESA_LEN];
+        __u8  MPS_ctrl[ATM_ESA_LEN];
         union {
                 in_ctrl_info in_info;
                 eg_ctrl_info eg_info;
@@ -61,11 +62,11 @@ struct k_message {
 
 struct llc_snap_hdr {
 	/* RFC 1483 LLC/SNAP encapsulation for routed IP PDUs */
-        uint8_t  dsap;    /* Destination Service Access Point (0xAA)     */
-        uint8_t  ssap;    /* Source Service Access Point      (0xAA)     */
-        uint8_t  ui;      /* Unnumbered Information           (0x03)     */
-        uint8_t  org[3];  /* Organizational identification    (0x000000) */
-        uint8_t  type[2]; /* Ether type (for IP)              (0x0800)   */
+        __u8  dsap;    /* Destination Service Access Point (0xAA)     */
+        __u8  ssap;    /* Source Service Access Point      (0xAA)     */
+        __u8  ui;      /* Unnumbered Information           (0x03)     */
+        __u8  org[3];  /* Organizational identification    (0x000000) */
+        __u8  type[2]; /* Ether type (for IP)              (0x0800)   */
 };
 
 /* TLVs this MPC recognizes */
diff --git a/include/linux/cm4000_cs.h b/include/linux/cm4000_cs.h
index 605ebe24bb2e..72bfefdbd767 100644
--- a/include/linux/cm4000_cs.h
+++ b/include/linux/cm4000_cs.h
@@ -1,6 +1,8 @@
 #ifndef	_CM4000_H_
 #define	_CM4000_H_
 
+#include <linux/types.h>
+
 #define	MAX_ATR			33
 
 #define	CM4000_MAX_DEV		4
@@ -10,9 +12,9 @@
  * not to break compilation of userspace apps. -HW */
 
 typedef struct atreq {
-	int32_t atr_len;
+	__s32 atr_len;
 	unsigned char atr[64];
-	int32_t power_act;
+	__s32 power_act;
 	unsigned char bIFSD;
 	unsigned char bIFSC;
 } atreq_t;
@@ -22,13 +24,13 @@ typedef struct atreq {
  * member sizes. This leads to CONFIG_COMPAT breakage, since 32bit userspace
  * will lay out the structure members differently than the 64bit kernel.
  *
- * I've changed "ptsreq.protocol" from "unsigned long" to "u_int32_t".
+ * I've changed "ptsreq.protocol" from "unsigned long" to "__u32".
  * On 32bit this will make no difference.  With 64bit kernels, it will make
  * 32bit apps work, too.
  */
 
 typedef struct ptsreq {
-	u_int32_t protocol; /*T=0: 2^0, T=1:  2^1*/
+	__u32 protocol; /*T=0: 2^0, T=1:  2^1*/
  	unsigned char flags;
  	unsigned char pts1;
  	unsigned char pts2;
diff --git a/include/linux/dlm_netlink.h b/include/linux/dlm_netlink.h
index 19276332707a..647c8ef27227 100644
--- a/include/linux/dlm_netlink.h
+++ b/include/linux/dlm_netlink.h
@@ -9,6 +9,8 @@
 #ifndef _DLM_NETLINK_H
 #define _DLM_NETLINK_H
 
+#include <linux/types.h>
+
 enum {
 	DLM_STATUS_WAITING = 1,
 	DLM_STATUS_GRANTED = 2,
@@ -18,16 +20,16 @@ enum {
 #define DLM_LOCK_DATA_VERSION 1
 
 struct dlm_lock_data {
-	uint16_t version;
-	uint32_t lockspace_id;
+	__u16 version;
+	__u32 lockspace_id;
 	int nodeid;
 	int ownpid;
-	uint32_t id;
-	uint32_t remid;
-	uint64_t xid;
-	int8_t status;
-	int8_t grmode;
-	int8_t rqmode;
+	__u32 id;
+	__u32 remid;
+	__u64 xid;
+	__s8 status;
+	__s8 grmode;
+	__s8 rqmode;
 	unsigned long timestamp;
 	int resource_namelen;
 	char resource_name[DLM_RESNAME_MAXLEN];
diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h
index 28c2940eb30d..48e44ee2b466 100644
--- a/include/linux/dm-ioctl.h
+++ b/include/linux/dm-ioctl.h
@@ -113,20 +113,20 @@ struct dm_ioctl {
 	 * return -ENOTTY) fill out this field, even if the
 	 * command failed.
 	 */
-	uint32_t version[3];	/* in/out */
-	uint32_t data_size;	/* total size of data passed in
+	__u32 version[3];	/* in/out */
+	__u32 data_size;	/* total size of data passed in
 				 * including this struct */
 
-	uint32_t data_start;	/* offset to start of data
+	__u32 data_start;	/* offset to start of data
 				 * relative to start of this struct */
 
-	uint32_t target_count;	/* in/out */
-	int32_t open_count;	/* out */
-	uint32_t flags;		/* in/out */
-	uint32_t event_nr;      	/* in/out */
-	uint32_t padding;
+	__u32 target_count;	/* in/out */
+	__s32 open_count;	/* out */
+	__u32 flags;		/* in/out */
+	__u32 event_nr;      	/* in/out */
+	__u32 padding;
 
-	uint64_t dev;		/* in/out */
+	__u64 dev;		/* in/out */
 
 	char name[DM_NAME_LEN];	/* device name */
 	char uuid[DM_UUID_LEN];	/* unique identifier for
@@ -139,9 +139,9 @@ struct dm_ioctl {
  * dm_ioctl.
  */
 struct dm_target_spec {
-	uint64_t sector_start;
-	uint64_t length;
-	int32_t status;		/* used when reading from kernel only */
+	__u64 sector_start;
+	__u64 length;
+	__s32 status;		/* used when reading from kernel only */
 
 	/*
 	 * Location of the next dm_target_spec.
@@ -153,7 +153,7 @@ struct dm_target_spec {
 	 *   (that follows the dm_ioctl struct) to the start of the "next"
 	 *   dm_target_spec.
 	 */
-	uint32_t next;
+	__u32 next;
 
 	char target_type[DM_MAX_TYPE_NAME];
 
@@ -168,17 +168,17 @@ struct dm_target_spec {
  * Used to retrieve the target dependencies.
  */
 struct dm_target_deps {
-	uint32_t count;	/* Array size */
-	uint32_t padding;	/* unused */
-	uint64_t dev[0];	/* out */
+	__u32 count;	/* Array size */
+	__u32 padding;	/* unused */
+	__u64 dev[0];	/* out */
 };
 
 /*
  * Used to get a list of all dm devices.
  */
 struct dm_name_list {
-	uint64_t dev;
-	uint32_t next;		/* offset to the next record from
+	__u64 dev;
+	__u32 next;		/* offset to the next record from
 				   the _start_ of this */
 	char name[0];
 };
@@ -187,8 +187,8 @@ struct dm_name_list {
  * Used to retrieve the target versions
  */
 struct dm_target_versions {
-        uint32_t next;
-        uint32_t version[3];
+        __u32 next;
+        __u32 version[3];
 
         char name[0];
 };
@@ -197,7 +197,7 @@ struct dm_target_versions {
  * Used to pass message to a target
  */
 struct dm_target_msg {
-	uint64_t sector;	/* Device sector */
+	__u64 sector;	/* Device sector */
 
 	char message[0];
 };
diff --git a/include/linux/dvb/audio.h b/include/linux/dvb/audio.h
index bb0df2aaebfa..fec66bd24f22 100644
--- a/include/linux/dvb/audio.h
+++ b/include/linux/dvb/audio.h
@@ -76,7 +76,7 @@ struct audio_karaoke{  /* if Vocal1 or Vocal2 are non-zero, they get mixed  */
 } audio_karaoke_t;     /* into left and right  */
 
 
-typedef uint16_t audio_attributes_t;
+typedef __u16 audio_attributes_t;
 /*   bits: descr. */
 /*   15-13 audio coding mode (0=ac3, 2=mpeg1, 3=mpeg2ext, 4=LPCM, 6=DTS, */
 /*   12    multichannel extension */
diff --git a/include/linux/dvb/video.h b/include/linux/dvb/video.h
index ee5d2df2d78d..1d750c0fd86e 100644
--- a/include/linux/dvb/video.h
+++ b/include/linux/dvb/video.h
@@ -132,7 +132,7 @@ struct video_command {
 #define VIDEO_VSYNC_FIELD_PROGRESSIVE	(3)
 
 struct video_event {
-	int32_t type;
+	__s32 type;
 #define VIDEO_EVENT_SIZE_CHANGED	1
 #define VIDEO_EVENT_FRAME_RATE_CHANGED	2
 #define VIDEO_EVENT_DECODER_STOPPED 	3
@@ -157,25 +157,25 @@ struct video_status {
 
 struct video_still_picture {
 	char __user *iFrame;        /* pointer to a single iframe in memory */
-	int32_t size;
+	__s32 size;
 };
 
 
 typedef
 struct video_highlight {
 	int     active;      /*    1=show highlight, 0=hide highlight */
-	uint8_t contrast1;   /*    7- 4  Pattern pixel contrast */
+	__u8    contrast1;   /*    7- 4  Pattern pixel contrast */
 			     /*    3- 0  Background pixel contrast */
-	uint8_t contrast2;   /*    7- 4  Emphasis pixel-2 contrast */
+	__u8    contrast2;   /*    7- 4  Emphasis pixel-2 contrast */
 			     /*    3- 0  Emphasis pixel-1 contrast */
-	uint8_t color1;      /*    7- 4  Pattern pixel color */
+	__u8    color1;      /*    7- 4  Pattern pixel color */
 			     /*    3- 0  Background pixel color */
-	uint8_t color2;      /*    7- 4  Emphasis pixel-2 color */
+	__u8    color2;      /*    7- 4  Emphasis pixel-2 color */
 			     /*    3- 0  Emphasis pixel-1 color */
-	uint32_t ypos;       /*   23-22  auto action mode */
+	__u32    ypos;       /*   23-22  auto action mode */
 			     /*   21-12  start y */
 			     /*    9- 0  end y */
-	uint32_t xpos;       /*   23-22  button color number */
+	__u32    xpos;       /*   23-22  button color number */
 			     /*   21-12  start x */
 			     /*    9- 0  end x */
 } video_highlight_t;
@@ -189,17 +189,17 @@ typedef struct video_spu {
 
 typedef struct video_spu_palette {      /* SPU Palette information */
 	int length;
-	uint8_t __user *palette;
+	__u8 __user *palette;
 } video_spu_palette_t;
 
 
 typedef struct video_navi_pack {
 	int length;          /* 0 ... 1024 */
-	uint8_t data[1024];
+	__u8 data[1024];
 } video_navi_pack_t;
 
 
-typedef uint16_t video_attributes_t;
+typedef __u16 video_attributes_t;
 /*   bits: descr. */
 /*   15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */
 /*   13-12 TV system (0=525/60, 1=625/50) */
diff --git a/include/linux/if_arcnet.h b/include/linux/if_arcnet.h
index 27ea2ac445ad..0835debab115 100644
--- a/include/linux/if_arcnet.h
+++ b/include/linux/if_arcnet.h
@@ -16,6 +16,7 @@
 #ifndef _LINUX_IF_ARCNET_H
 #define _LINUX_IF_ARCNET_H
 
+#include <linux/types.h>
 #include <linux/if_ether.h>
 
 
@@ -57,10 +58,10 @@
  */
 struct arc_rfc1201
 {
-    uint8_t  proto;		/* protocol ID field - varies		*/
-    uint8_t  split_flag;	/* for use with split packets		*/
+    __u8  proto;		/* protocol ID field - varies		*/
+    __u8  split_flag;	/* for use with split packets		*/
     __be16   sequence;		/* sequence number			*/
-    uint8_t  payload[0];	/* space remaining in packet (504 bytes)*/
+    __u8  payload[0];	/* space remaining in packet (504 bytes)*/
 };
 #define RFC1201_HDR_SIZE 4
 
@@ -70,8 +71,8 @@ struct arc_rfc1201
  */
 struct arc_rfc1051
 {
-    uint8_t proto;		/* ARC_P_RFC1051_ARP/RFC1051_IP	*/
-    uint8_t payload[0];		/* 507 bytes			*/
+    __u8 proto;		/* ARC_P_RFC1051_ARP/RFC1051_IP	*/
+    __u8 payload[0];		/* 507 bytes			*/
 };
 #define RFC1051_HDR_SIZE 1
 
@@ -82,20 +83,20 @@ struct arc_rfc1051
  */
 struct arc_eth_encap
 {
-    uint8_t proto;		/* Always ARC_P_ETHER			*/
+    __u8 proto;		/* Always ARC_P_ETHER			*/
     struct ethhdr eth;		/* standard ethernet header (yuck!)	*/
-    uint8_t payload[0];		/* 493 bytes				*/
+    __u8 payload[0];		/* 493 bytes				*/
 };
 #define ETH_ENCAP_HDR_SIZE 14
 
 
 struct arc_cap
 {
-	uint8_t proto;
-	uint8_t cookie[sizeof(int)];   /* Actually NOT sent over the network */
+	__u8 proto;
+	__u8 cookie[sizeof(int)];   /* Actually NOT sent over the network */
 	union {
-		uint8_t ack;
-		uint8_t raw[0];		/* 507 bytes */
+		__u8 ack;
+		__u8 raw[0];		/* 507 bytes */
 	} mes;
 };
 
@@ -109,7 +110,7 @@ struct arc_cap
  */
 struct arc_hardware
 {
-    uint8_t  source,		/* source ARCnet - filled in automagically */
+    __u8  source,		/* source ARCnet - filled in automagically */
              dest,		/* destination ARCnet - 0 for broadcast    */
     	     offset[2];		/* offset bytes (some weird semantics)     */
 };
@@ -130,7 +131,7 @@ struct archdr
 	struct arc_rfc1051   rfc1051;
 	struct arc_eth_encap eth_encap;
 	struct arc_cap       cap;
-	uint8_t raw[0];		/* 508 bytes				*/
+	__u8 raw[0];		/* 508 bytes				*/
     } soft;
 };
 
diff --git a/include/linux/ip_vs.h b/include/linux/ip_vs.h
index 0f434a28fb58..148265e63e8d 100644
--- a/include/linux/ip_vs.h
+++ b/include/linux/ip_vs.h
@@ -96,10 +96,10 @@
  */
 struct ip_vs_service_user {
 	/* virtual service addresses */
-	u_int16_t		protocol;
+	__u16		protocol;
 	__be32			addr;		/* virtual ip address */
 	__be16			port;
-	u_int32_t		fwmark;		/* firwall mark of service */
+	__u32		fwmark;		/* firwall mark of service */
 
 	/* virtual service options */
 	char			sched_name[IP_VS_SCHEDNAME_MAXLEN];
@@ -119,8 +119,8 @@ struct ip_vs_dest_user {
 	int			weight;		/* destination weight */
 
 	/* thresholds for active connections */
-	u_int32_t		u_threshold;	/* upper threshold */
-	u_int32_t		l_threshold;	/* lower threshold */
+	__u32		u_threshold;	/* upper threshold */
+	__u32		l_threshold;	/* lower threshold */
 };
 
 
@@ -159,10 +159,10 @@ struct ip_vs_getinfo {
 /* The argument to IP_VS_SO_GET_SERVICE */
 struct ip_vs_service_entry {
 	/* which service: user fills in these */
-	u_int16_t		protocol;
+	__u16		protocol;
 	__be32			addr;		/* virtual address */
 	__be16			port;
-	u_int32_t		fwmark;		/* firwall mark of service */
+	__u32		fwmark;		/* firwall mark of service */
 
 	/* service options */
 	char			sched_name[IP_VS_SCHEDNAME_MAXLEN];
@@ -184,12 +184,12 @@ struct ip_vs_dest_entry {
 	unsigned		conn_flags;	/* connection flags */
 	int			weight;		/* destination weight */
 
-	u_int32_t		u_threshold;	/* upper threshold */
-	u_int32_t		l_threshold;	/* lower threshold */
+	__u32		u_threshold;	/* upper threshold */
+	__u32		l_threshold;	/* lower threshold */
 
-	u_int32_t		activeconns;	/* active connections */
-	u_int32_t		inactconns;	/* inactive connections */
-	u_int32_t		persistconns;	/* persistent connections */
+	__u32		activeconns;	/* active connections */
+	__u32		inactconns;	/* inactive connections */
+	__u32		persistconns;	/* persistent connections */
 
 	/* statistics */
 	struct ip_vs_stats_user stats;
@@ -199,10 +199,10 @@ struct ip_vs_dest_entry {
 /* The argument to IP_VS_SO_GET_DESTS */
 struct ip_vs_get_dests {
 	/* which service: user fills in these */
-	u_int16_t		protocol;
+	__u16		protocol;
 	__be32			addr;		/* virtual address */
 	__be16			port;
-	u_int32_t		fwmark;		/* firwall mark of service */
+	__u32		fwmark;		/* firwall mark of service */
 
 	/* number of real servers */
 	unsigned int		num_dests;
diff --git a/include/linux/ivtvfb.h b/include/linux/ivtvfb.h
index e20af47b59ad..9d88b29ddf55 100644
--- a/include/linux/ivtvfb.h
+++ b/include/linux/ivtvfb.h
@@ -33,6 +33,6 @@ struct ivtvfb_dma_frame {
 };
 
 #define IVTVFB_IOC_DMA_FRAME 	_IOW('V', BASE_VIDIOC_PRIVATE+0, struct ivtvfb_dma_frame)
-#define FBIO_WAITFORVSYNC	_IOW('F', 0x20, u_int32_t)
+#define FBIO_WAITFORVSYNC	_IOW('F', 0x20, __u32)
 
 #endif
diff --git a/include/linux/matroxfb.h b/include/linux/matroxfb.h
index 404f678e734b..2203121a43e9 100644
--- a/include/linux/matroxfb.h
+++ b/include/linux/matroxfb.h
@@ -37,7 +37,7 @@ enum matroxfb_ctrl_id {
   MATROXFB_CID_LAST
 };
 
-#define FBIO_WAITFORVSYNC	_IOW('F', 0x20, u_int32_t)
+#define FBIO_WAITFORVSYNC	_IOW('F', 0x20, __u32)
 
 #endif
 
diff --git a/include/linux/pfkeyv2.h b/include/linux/pfkeyv2.h
index 01b262959f2e..228b0b6306b0 100644
--- a/include/linux/pfkeyv2.h
+++ b/include/linux/pfkeyv2.h
@@ -12,187 +12,187 @@
 #define PFKEYV2_REVISION	199806L
 
 struct sadb_msg {
-	uint8_t		sadb_msg_version;
-	uint8_t		sadb_msg_type;
-	uint8_t		sadb_msg_errno;
-	uint8_t		sadb_msg_satype;
-	uint16_t	sadb_msg_len;
-	uint16_t	sadb_msg_reserved;
-	uint32_t	sadb_msg_seq;
-	uint32_t	sadb_msg_pid;
+	__u8		sadb_msg_version;
+	__u8		sadb_msg_type;
+	__u8		sadb_msg_errno;
+	__u8		sadb_msg_satype;
+	__u16	sadb_msg_len;
+	__u16	sadb_msg_reserved;
+	__u32	sadb_msg_seq;
+	__u32	sadb_msg_pid;
 } __attribute__((packed));
 /* sizeof(struct sadb_msg) == 16 */
 
 struct sadb_ext {
-	uint16_t	sadb_ext_len;
-	uint16_t	sadb_ext_type;
+	__u16	sadb_ext_len;
+	__u16	sadb_ext_type;
 } __attribute__((packed));
 /* sizeof(struct sadb_ext) == 4 */
 
 struct sadb_sa {
-	uint16_t	sadb_sa_len;
-	uint16_t	sadb_sa_exttype;
+	__u16	sadb_sa_len;
+	__u16	sadb_sa_exttype;
 	__be32		sadb_sa_spi;
-	uint8_t		sadb_sa_replay;
-	uint8_t		sadb_sa_state;
-	uint8_t		sadb_sa_auth;
-	uint8_t		sadb_sa_encrypt;
-	uint32_t	sadb_sa_flags;
+	__u8		sadb_sa_replay;
+	__u8		sadb_sa_state;
+	__u8		sadb_sa_auth;
+	__u8		sadb_sa_encrypt;
+	__u32	sadb_sa_flags;
 } __attribute__((packed));
 /* sizeof(struct sadb_sa) == 16 */
 
 struct sadb_lifetime {
-	uint16_t	sadb_lifetime_len;
-	uint16_t	sadb_lifetime_exttype;
-	uint32_t	sadb_lifetime_allocations;
-	uint64_t	sadb_lifetime_bytes;
-	uint64_t	sadb_lifetime_addtime;
-	uint64_t	sadb_lifetime_usetime;
+	__u16	sadb_lifetime_len;
+	__u16	sadb_lifetime_exttype;
+	__u32	sadb_lifetime_allocations;
+	__u64	sadb_lifetime_bytes;
+	__u64	sadb_lifetime_addtime;
+	__u64	sadb_lifetime_usetime;
 } __attribute__((packed));
 /* sizeof(struct sadb_lifetime) == 32 */
 
 struct sadb_address {
-	uint16_t	sadb_address_len;
-	uint16_t	sadb_address_exttype;
-	uint8_t		sadb_address_proto;
-	uint8_t		sadb_address_prefixlen;
-	uint16_t	sadb_address_reserved;
+	__u16	sadb_address_len;
+	__u16	sadb_address_exttype;
+	__u8		sadb_address_proto;
+	__u8		sadb_address_prefixlen;
+	__u16	sadb_address_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_address) == 8 */
 
 struct sadb_key {
-	uint16_t	sadb_key_len;
-	uint16_t	sadb_key_exttype;
-	uint16_t	sadb_key_bits;
-	uint16_t	sadb_key_reserved;
+	__u16	sadb_key_len;
+	__u16	sadb_key_exttype;
+	__u16	sadb_key_bits;
+	__u16	sadb_key_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_key) == 8 */
 
 struct sadb_ident {
-	uint16_t	sadb_ident_len;
-	uint16_t	sadb_ident_exttype;
-	uint16_t	sadb_ident_type;
-	uint16_t	sadb_ident_reserved;
-	uint64_t	sadb_ident_id;
+	__u16	sadb_ident_len;
+	__u16	sadb_ident_exttype;
+	__u16	sadb_ident_type;
+	__u16	sadb_ident_reserved;
+	__u64	sadb_ident_id;
 } __attribute__((packed));
 /* sizeof(struct sadb_ident) == 16 */
 
 struct sadb_sens {
-	uint16_t	sadb_sens_len;
-	uint16_t	sadb_sens_exttype;
-	uint32_t	sadb_sens_dpd;
-	uint8_t		sadb_sens_sens_level;
-	uint8_t		sadb_sens_sens_len;
-	uint8_t		sadb_sens_integ_level;
-	uint8_t		sadb_sens_integ_len;
-	uint32_t	sadb_sens_reserved;
+	__u16	sadb_sens_len;
+	__u16	sadb_sens_exttype;
+	__u32	sadb_sens_dpd;
+	__u8		sadb_sens_sens_level;
+	__u8		sadb_sens_sens_len;
+	__u8		sadb_sens_integ_level;
+	__u8		sadb_sens_integ_len;
+	__u32	sadb_sens_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_sens) == 16 */
 
 /* followed by:
-	uint64_t	sadb_sens_bitmap[sens_len];
-	uint64_t	sadb_integ_bitmap[integ_len];  */
+	__u64	sadb_sens_bitmap[sens_len];
+	__u64	sadb_integ_bitmap[integ_len];  */
 
 struct sadb_prop {
-	uint16_t	sadb_prop_len;
-	uint16_t	sadb_prop_exttype;
-	uint8_t		sadb_prop_replay;
-	uint8_t		sadb_prop_reserved[3];
+	__u16	sadb_prop_len;
+	__u16	sadb_prop_exttype;
+	__u8		sadb_prop_replay;
+	__u8		sadb_prop_reserved[3];
 } __attribute__((packed));
 /* sizeof(struct sadb_prop) == 8 */
 
 /* followed by:
 	struct sadb_comb sadb_combs[(sadb_prop_len +
-		sizeof(uint64_t) - sizeof(struct sadb_prop)) /
+		sizeof(__u64) - sizeof(struct sadb_prop)) /
 		sizeof(struct sadb_comb)]; */
 
 struct sadb_comb {
-	uint8_t		sadb_comb_auth;
-	uint8_t		sadb_comb_encrypt;
-	uint16_t	sadb_comb_flags;
-	uint16_t	sadb_comb_auth_minbits;
-	uint16_t	sadb_comb_auth_maxbits;
-	uint16_t	sadb_comb_encrypt_minbits;
-	uint16_t	sadb_comb_encrypt_maxbits;
-	uint32_t	sadb_comb_reserved;
-	uint32_t	sadb_comb_soft_allocations;
-	uint32_t	sadb_comb_hard_allocations;
-	uint64_t	sadb_comb_soft_bytes;
-	uint64_t	sadb_comb_hard_bytes;
-	uint64_t	sadb_comb_soft_addtime;
-	uint64_t	sadb_comb_hard_addtime;
-	uint64_t	sadb_comb_soft_usetime;
-	uint64_t	sadb_comb_hard_usetime;
+	__u8		sadb_comb_auth;
+	__u8		sadb_comb_encrypt;
+	__u16	sadb_comb_flags;
+	__u16	sadb_comb_auth_minbits;
+	__u16	sadb_comb_auth_maxbits;
+	__u16	sadb_comb_encrypt_minbits;
+	__u16	sadb_comb_encrypt_maxbits;
+	__u32	sadb_comb_reserved;
+	__u32	sadb_comb_soft_allocations;
+	__u32	sadb_comb_hard_allocations;
+	__u64	sadb_comb_soft_bytes;
+	__u64	sadb_comb_hard_bytes;
+	__u64	sadb_comb_soft_addtime;
+	__u64	sadb_comb_hard_addtime;
+	__u64	sadb_comb_soft_usetime;
+	__u64	sadb_comb_hard_usetime;
 } __attribute__((packed));
 /* sizeof(struct sadb_comb) == 72 */
 
 struct sadb_supported {
-	uint16_t	sadb_supported_len;
-	uint16_t	sadb_supported_exttype;
-	uint32_t	sadb_supported_reserved;
+	__u16	sadb_supported_len;
+	__u16	sadb_supported_exttype;
+	__u32	sadb_supported_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_supported) == 8 */
 
 /* followed by:
 	struct sadb_alg sadb_algs[(sadb_supported_len +
-		sizeof(uint64_t) - sizeof(struct sadb_supported)) /
+		sizeof(__u64) - sizeof(struct sadb_supported)) /
 		sizeof(struct sadb_alg)]; */
 
 struct sadb_alg {
-	uint8_t		sadb_alg_id;
-	uint8_t		sadb_alg_ivlen;
-	uint16_t	sadb_alg_minbits;
-	uint16_t	sadb_alg_maxbits;
-	uint16_t	sadb_alg_reserved;
+	__u8		sadb_alg_id;
+	__u8		sadb_alg_ivlen;
+	__u16	sadb_alg_minbits;
+	__u16	sadb_alg_maxbits;
+	__u16	sadb_alg_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_alg) == 8 */
 
 struct sadb_spirange {
-	uint16_t	sadb_spirange_len;
-	uint16_t	sadb_spirange_exttype;
-	uint32_t	sadb_spirange_min;
-	uint32_t	sadb_spirange_max;
-	uint32_t	sadb_spirange_reserved;
+	__u16	sadb_spirange_len;
+	__u16	sadb_spirange_exttype;
+	__u32	sadb_spirange_min;
+	__u32	sadb_spirange_max;
+	__u32	sadb_spirange_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_spirange) == 16 */
 
 struct sadb_x_kmprivate {
-	uint16_t	sadb_x_kmprivate_len;
-	uint16_t	sadb_x_kmprivate_exttype;
-	uint32_t	sadb_x_kmprivate_reserved;
+	__u16	sadb_x_kmprivate_len;
+	__u16	sadb_x_kmprivate_exttype;
+	__u32	sadb_x_kmprivate_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_x_kmprivate) == 8 */
 
 struct sadb_x_sa2 {
-	uint16_t	sadb_x_sa2_len;
-	uint16_t	sadb_x_sa2_exttype;
-	uint8_t		sadb_x_sa2_mode;
-	uint8_t		sadb_x_sa2_reserved1;
-	uint16_t	sadb_x_sa2_reserved2;
-	uint32_t	sadb_x_sa2_sequence;
-	uint32_t	sadb_x_sa2_reqid;
+	__u16	sadb_x_sa2_len;
+	__u16	sadb_x_sa2_exttype;
+	__u8		sadb_x_sa2_mode;
+	__u8		sadb_x_sa2_reserved1;
+	__u16	sadb_x_sa2_reserved2;
+	__u32	sadb_x_sa2_sequence;
+	__u32	sadb_x_sa2_reqid;
 } __attribute__((packed));
 /* sizeof(struct sadb_x_sa2) == 16 */
 
 struct sadb_x_policy {
-	uint16_t	sadb_x_policy_len;
-	uint16_t	sadb_x_policy_exttype;
-	uint16_t	sadb_x_policy_type;
-	uint8_t		sadb_x_policy_dir;
-	uint8_t		sadb_x_policy_reserved;
-	uint32_t	sadb_x_policy_id;
-	uint32_t	sadb_x_policy_priority;
+	__u16	sadb_x_policy_len;
+	__u16	sadb_x_policy_exttype;
+	__u16	sadb_x_policy_type;
+	__u8		sadb_x_policy_dir;
+	__u8		sadb_x_policy_reserved;
+	__u32	sadb_x_policy_id;
+	__u32	sadb_x_policy_priority;
 } __attribute__((packed));
 /* sizeof(struct sadb_x_policy) == 16 */
 
 struct sadb_x_ipsecrequest {
-	uint16_t	sadb_x_ipsecrequest_len;
-	uint16_t	sadb_x_ipsecrequest_proto;
-	uint8_t		sadb_x_ipsecrequest_mode;
-	uint8_t		sadb_x_ipsecrequest_level;
-	uint16_t	sadb_x_ipsecrequest_reserved1;
-	uint32_t	sadb_x_ipsecrequest_reqid;
-	uint32_t	sadb_x_ipsecrequest_reserved2;
+	__u16	sadb_x_ipsecrequest_len;
+	__u16	sadb_x_ipsecrequest_proto;
+	__u8		sadb_x_ipsecrequest_mode;
+	__u8		sadb_x_ipsecrequest_level;
+	__u16	sadb_x_ipsecrequest_reserved1;
+	__u32	sadb_x_ipsecrequest_reqid;
+	__u32	sadb_x_ipsecrequest_reserved2;
 } __attribute__((packed));
 /* sizeof(struct sadb_x_ipsecrequest) == 16 */
 
@@ -200,38 +200,38 @@ struct sadb_x_ipsecrequest {
  * type of NAT-T is supported, draft-ietf-ipsec-udp-encaps-06
  */
 struct sadb_x_nat_t_type {
-	uint16_t	sadb_x_nat_t_type_len;
-	uint16_t	sadb_x_nat_t_type_exttype;
-	uint8_t		sadb_x_nat_t_type_type;
-	uint8_t		sadb_x_nat_t_type_reserved[3];
+	__u16	sadb_x_nat_t_type_len;
+	__u16	sadb_x_nat_t_type_exttype;
+	__u8		sadb_x_nat_t_type_type;
+	__u8		sadb_x_nat_t_type_reserved[3];
 } __attribute__((packed));
 /* sizeof(struct sadb_x_nat_t_type) == 8 */
 
 /* Pass a NAT Traversal port (Source or Dest port) */
 struct sadb_x_nat_t_port {
-	uint16_t	sadb_x_nat_t_port_len;
-	uint16_t	sadb_x_nat_t_port_exttype;
+	__u16	sadb_x_nat_t_port_len;
+	__u16	sadb_x_nat_t_port_exttype;
 	__be16		sadb_x_nat_t_port_port;
-	uint16_t	sadb_x_nat_t_port_reserved;
+	__u16	sadb_x_nat_t_port_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_x_nat_t_port) == 8 */
 
 /* Generic LSM security context */
 struct sadb_x_sec_ctx {
-	uint16_t	sadb_x_sec_len;
-	uint16_t	sadb_x_sec_exttype;
-	uint8_t		sadb_x_ctx_alg;  /* LSMs: e.g., selinux == 1 */
-	uint8_t		sadb_x_ctx_doi;
-	uint16_t	sadb_x_ctx_len;
+	__u16	sadb_x_sec_len;
+	__u16	sadb_x_sec_exttype;
+	__u8		sadb_x_ctx_alg;  /* LSMs: e.g., selinux == 1 */
+	__u8		sadb_x_ctx_doi;
+	__u16	sadb_x_ctx_len;
 } __attribute__((packed));
 /* sizeof(struct sadb_sec_ctx) = 8 */
 
 /* Used by MIGRATE to pass addresses IKE will use to perform
  * negotiation with the peer */
 struct sadb_x_kmaddress {
-	uint16_t	sadb_x_kmaddress_len;
-	uint16_t	sadb_x_kmaddress_exttype;
-	uint32_t	sadb_x_kmaddress_reserved;
+	__u16	sadb_x_kmaddress_len;
+	__u16	sadb_x_kmaddress_exttype;
+	__u32	sadb_x_kmaddress_reserved;
 } __attribute__((packed));
 /* sizeof(struct sadb_x_kmaddress) == 8 */
 
diff --git a/include/linux/selinux_netlink.h b/include/linux/selinux_netlink.h
index bbf489decd84..d239797785cf 100644
--- a/include/linux/selinux_netlink.h
+++ b/include/linux/selinux_netlink.h
@@ -12,6 +12,8 @@
 #ifndef _LINUX_SELINUX_NETLINK_H
 #define _LINUX_SELINUX_NETLINK_H
 
+#include <linux/types.h>
+
 /* Message types. */
 #define SELNL_MSG_BASE 0x10
 enum {
@@ -38,11 +40,11 @@ enum selinux_nlgroups {
 
 /* Message structures */
 struct selnl_msg_setenforce {
-	int32_t		val;
+	__s32		val;
 };
 
 struct selnl_msg_policyload {
-	u_int32_t	seqno;
+	__u32	seqno;
 };
 
 #endif /* _LINUX_SELINUX_NETLINK_H */
diff --git a/include/sound/asound.h b/include/sound/asound.h
index 16684c5a608c..d9beda5f74a7 100644
--- a/include/sound/asound.h
+++ b/include/sound/asound.h
@@ -23,9 +23,10 @@
 #ifndef __SOUND_ASOUND_H
 #define __SOUND_ASOUND_H
 
+#include <linux/types.h>
+
 #ifdef __KERNEL__
 #include <linux/ioctl.h>
-#include <linux/types.h>
 #include <linux/time.h>
 #include <asm/byteorder.h>
 
@@ -342,7 +343,7 @@ struct snd_interval {
 #define SNDRV_MASK_MAX	256
 
 struct snd_mask {
-	u_int32_t bits[(SNDRV_MASK_MAX+31)/32];
+	__u32 bits[(SNDRV_MASK_MAX+31)/32];
 };
 
 struct snd_pcm_hw_params {
diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h
index 10ee28eac018..c380056ff26d 100644
--- a/include/sound/emu10k1.h
+++ b/include/sound/emu10k1.h
@@ -1,6 +1,8 @@
 #ifndef __SOUND_EMU10K1_H
 #define __SOUND_EMU10K1_H
 
+#include <linux/types.h>
+
 /*
  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
  *		     Creative Labs, Inc.
@@ -34,6 +36,8 @@
 #include <sound/timer.h>
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
+#include <linux/types.h>
+
 #include <asm/io.h>
 
 /* ------------------- DEFINES -------------------- */
@@ -2171,7 +2175,7 @@ struct snd_emu10k1_fx8010_code {
 	char name[128];
 
 	DECLARE_BITMAP(gpr_valid, 0x200); /* bitmask of valid initializers */
-	u_int32_t __user *gpr_map;	  /* initializers */
+	__u32 __user *gpr_map;		/* initializers */
 
 	unsigned int gpr_add_control_count; /* count of GPR controls to add/replace */
 	struct snd_emu10k1_fx8010_control_gpr __user *gpr_add_controls; /* GPR controls to add/replace */
@@ -2184,11 +2188,11 @@ struct snd_emu10k1_fx8010_code {
 	struct snd_emu10k1_fx8010_control_gpr __user *gpr_list_controls; /* listed GPR controls */
 
 	DECLARE_BITMAP(tram_valid, 0x100); /* bitmask of valid initializers */
-	u_int32_t __user *tram_data_map;  /* data initializers */
-	u_int32_t __user *tram_addr_map;  /* map initializers */
+	__u32 __user *tram_data_map;	  /* data initializers */
+	__u32 __user *tram_addr_map;	  /* map initializers */
 
 	DECLARE_BITMAP(code_valid, 1024); /* bitmask of valid instructions */
-	u_int32_t __user *code;		  /* one instruction - 64 bits */
+	__u32 __user *code;		  /* one instruction - 64 bits */
 };
 
 struct snd_emu10k1_fx8010_tram {
-- 
cgit v1.2.3


From ccef7ab534347e2e1e1ef398d2ec987d37e519f3 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 26 Feb 2009 00:51:41 +0100
Subject: make MTD headers use strict integer types

The MTD headers traditionally use stdint types rather than
the kernel integer types. This converts them to do the
same as all the others.

Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/jffs2.h    | 27 +++++++++---------
 include/mtd/inftl-user.h | 36 ++++++++++++------------
 include/mtd/jffs2-user.h |  5 ++--
 include/mtd/mtd-abi.h    | 66 +++++++++++++++++++++++---------------------
 include/mtd/nftl-user.h  | 32 +++++++++++----------
 include/mtd/ubi-user.h   | 72 +++++++++++++++++++++++++-----------------------
 6 files changed, 123 insertions(+), 115 deletions(-)

(limited to 'include')

diff --git a/include/linux/jffs2.h b/include/linux/jffs2.h
index da720bc3eb15..2b32d638147d 100644
--- a/include/linux/jffs2.h
+++ b/include/linux/jffs2.h
@@ -12,6 +12,7 @@
 #ifndef __LINUX_JFFS2_H__
 #define __LINUX_JFFS2_H__
 
+#include <linux/types.h>
 #include <linux/magic.h>
 
 /* You must include something which defines the C99 uintXX_t types. 
@@ -91,15 +92,15 @@
    byteswapping */
 
 typedef struct {
-	uint32_t v32;
+	__u32 v32;
 } __attribute__((packed)) jint32_t;
 
 typedef struct {
-	uint32_t m;
+	__u32 m;
 } __attribute__((packed)) jmode_t;
 
 typedef struct {
-	uint16_t v16;
+	__u16 v16;
 } __attribute__((packed)) jint16_t;
 
 struct jffs2_unknown_node
@@ -121,12 +122,12 @@ struct jffs2_raw_dirent
 	jint32_t version;
 	jint32_t ino; /* == zero for unlink */
 	jint32_t mctime;
-	uint8_t nsize;
-	uint8_t type;
-	uint8_t unused[2];
+	__u8 nsize;
+	__u8 type;
+	__u8 unused[2];
 	jint32_t node_crc;
 	jint32_t name_crc;
-	uint8_t name[0];
+	__u8 name[0];
 };
 
 /* The JFFS2 raw inode structure: Used for storage on physical media.  */
@@ -153,12 +154,12 @@ struct jffs2_raw_inode
 	jint32_t offset;     /* Where to begin to write.  */
 	jint32_t csize;      /* (Compressed) data size */
 	jint32_t dsize;	     /* Size of the node's data. (after decompression) */
-	uint8_t compr;       /* Compression algorithm used */
-	uint8_t usercompr;   /* Compression algorithm requested by the user */
+	__u8 compr;       /* Compression algorithm used */
+	__u8 usercompr;   /* Compression algorithm requested by the user */
 	jint16_t flags;	     /* See JFFS2_INO_FLAG_* */
 	jint32_t data_crc;   /* CRC for the (compressed) data.  */
 	jint32_t node_crc;   /* CRC for the raw inode (excluding data)  */
-	uint8_t data[0];
+	__u8 data[0];
 };
 
 struct jffs2_raw_xattr {
@@ -168,12 +169,12 @@ struct jffs2_raw_xattr {
 	jint32_t hdr_crc;
 	jint32_t xid;		/* XATTR identifier number */
 	jint32_t version;
-	uint8_t xprefix;
-	uint8_t name_len;
+	__u8 xprefix;
+	__u8 name_len;
 	jint16_t value_len;
 	jint32_t data_crc;
 	jint32_t node_crc;
-	uint8_t data[0];
+	__u8 data[0];
 } __attribute__((packed));
 
 struct jffs2_raw_xref
diff --git a/include/mtd/inftl-user.h b/include/mtd/inftl-user.h
index d409d489d900..8376bd1a9e01 100644
--- a/include/mtd/inftl-user.h
+++ b/include/mtd/inftl-user.h
@@ -16,33 +16,33 @@
 /* Block Control Information */
 
 struct inftl_bci {
-	uint8_t ECCsig[6];
-	uint8_t Status;
-	uint8_t Status1;
+	__u8 ECCsig[6];
+	__u8 Status;
+	__u8 Status1;
 } __attribute__((packed));
 
 struct inftl_unithead1 {
-	uint16_t virtualUnitNo;
-	uint16_t prevUnitNo;
-	uint8_t ANAC;
-	uint8_t NACs;
-	uint8_t parityPerField;
-	uint8_t discarded;
+	__u16 virtualUnitNo;
+	__u16 prevUnitNo;
+	__u8 ANAC;
+	__u8 NACs;
+	__u8 parityPerField;
+	__u8 discarded;
 } __attribute__((packed));
 
 struct inftl_unithead2 {
-	uint8_t parityPerField;
-	uint8_t ANAC;
-	uint16_t prevUnitNo;
-	uint16_t virtualUnitNo;
-	uint8_t NACs;
-	uint8_t discarded;
+	__u8 parityPerField;
+	__u8 ANAC;
+	__u16 prevUnitNo;
+	__u16 virtualUnitNo;
+	__u8 NACs;
+	__u8 discarded;
 } __attribute__((packed));
 
 struct inftl_unittail {
-	uint8_t Reserved[4];
-	uint16_t EraseMark;
-	uint16_t EraseMark1;
+	__u8 Reserved[4];
+	__u16 EraseMark;
+	__u16 EraseMark1;
 } __attribute__((packed));
 
 union inftl_uci {
diff --git a/include/mtd/jffs2-user.h b/include/mtd/jffs2-user.h
index 001685d7fa88..fa94b0eb67c1 100644
--- a/include/mtd/jffs2-user.h
+++ b/include/mtd/jffs2-user.h
@@ -7,6 +7,7 @@
 
 /* This file is blessed for inclusion by userspace */
 #include <linux/jffs2.h>
+#include <linux/types.h>
 #include <endian.h>
 #include <byteswap.h>
 
@@ -19,8 +20,8 @@
 
 extern int target_endian;
 
-#define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
-#define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
+#define t16(x) ({ __u16 __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
+#define t32(x) ({ __u32 __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
 
 #define cpu_to_je16(x) ((jint16_t){t16(x)})
 #define cpu_to_je32(x) ((jint32_t){t32(x)})
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index fb672013299c..b6595b3c68b6 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -5,14 +5,16 @@
 #ifndef __MTD_ABI_H__
 #define __MTD_ABI_H__
 
+#include <linux/types.h>
+
 struct erase_info_user {
-	uint32_t start;
-	uint32_t length;
+	__u32 start;
+	__u32 length;
 };
 
 struct mtd_oob_buf {
-	uint32_t start;
-	uint32_t length;
+	__u32 start;
+	__u32 length;
 	unsigned char __user *ptr;
 };
 
@@ -48,30 +50,30 @@ struct mtd_oob_buf {
 #define MTD_OTP_USER		2
 
 struct mtd_info_user {
-	uint8_t type;
-	uint32_t flags;
-	uint32_t size;	 // Total size of the MTD
-	uint32_t erasesize;
-	uint32_t writesize;
-	uint32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+	__u8 type;
+	__u32 flags;
+	__u32 size;	 // Total size of the MTD
+	__u32 erasesize;
+	__u32 writesize;
+	__u32 oobsize;   // Amount of OOB data per block (e.g. 16)
 	/* The below two fields are obsolete and broken, do not use them
 	 * (TODO: remove at some point) */
-	uint32_t ecctype;
-	uint32_t eccsize;
+	__u32 ecctype;
+	__u32 eccsize;
 };
 
 struct region_info_user {
-	uint32_t offset;		/* At which this region starts,
+	__u32 offset;		/* At which this region starts,
 					 * from the beginning of the MTD */
-	uint32_t erasesize;		/* For this region */
-	uint32_t numblocks;		/* Number of blocks in this region */
-	uint32_t regionindex;
+	__u32 erasesize;		/* For this region */
+	__u32 numblocks;		/* Number of blocks in this region */
+	__u32 regionindex;
 };
 
 struct otp_info {
-	uint32_t start;
-	uint32_t length;
-	uint32_t locked;
+	__u32 start;
+	__u32 length;
+	__u32 locked;
 };
 
 #define MEMGETINFO		_IOR('M', 1, struct mtd_info_user)
@@ -99,15 +101,15 @@ struct otp_info {
  * interfaces
  */
 struct nand_oobinfo {
-	uint32_t useecc;
-	uint32_t eccbytes;
-	uint32_t oobfree[8][2];
-	uint32_t eccpos[32];
+	__u32 useecc;
+	__u32 eccbytes;
+	__u32 oobfree[8][2];
+	__u32 eccpos[32];
 };
 
 struct nand_oobfree {
-	uint32_t offset;
-	uint32_t length;
+	__u32 offset;
+	__u32 length;
 };
 
 #define MTD_MAX_OOBFREE_ENTRIES	8
@@ -116,9 +118,9 @@ struct nand_oobfree {
  * diagnosis and to allow creation of raw images
  */
 struct nand_ecclayout {
-	uint32_t eccbytes;
-	uint32_t eccpos[64];
-	uint32_t oobavail;
+	__u32 eccbytes;
+	__u32 eccpos[64];
+	__u32 oobavail;
 	struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
 };
 
@@ -131,10 +133,10 @@ struct nand_ecclayout {
  * @bbtblocks:	number of blocks reserved for bad block tables
  */
 struct mtd_ecc_stats {
-	uint32_t corrected;
-	uint32_t failed;
-	uint32_t badblocks;
-	uint32_t bbtblocks;
+	__u32 corrected;
+	__u32 failed;
+	__u32 badblocks;
+	__u32 bbtblocks;
 };
 
 /*
diff --git a/include/mtd/nftl-user.h b/include/mtd/nftl-user.h
index 390d21c080aa..98e9e57f22de 100644
--- a/include/mtd/nftl-user.h
+++ b/include/mtd/nftl-user.h
@@ -6,33 +6,35 @@
 #ifndef __MTD_NFTL_USER_H__
 #define __MTD_NFTL_USER_H__
 
+#include <linux/types.h>
+
 /* Block Control Information */
 
 struct nftl_bci {
 	unsigned char ECCSig[6];
-	uint8_t Status;
-	uint8_t Status1;
+	__u8 Status;
+	__u8 Status1;
 }__attribute__((packed));
 
 /* Unit Control Information */
 
 struct nftl_uci0 {
-	uint16_t VirtUnitNum;
-	uint16_t ReplUnitNum;
-	uint16_t SpareVirtUnitNum;
-	uint16_t SpareReplUnitNum;
+	__u16 VirtUnitNum;
+	__u16 ReplUnitNum;
+	__u16 SpareVirtUnitNum;
+	__u16 SpareReplUnitNum;
 } __attribute__((packed));
 
 struct nftl_uci1 {
-	uint32_t WearInfo;
-	uint16_t EraseMark;
-	uint16_t EraseMark1;
+	__u32 WearInfo;
+	__u16 EraseMark;
+	__u16 EraseMark1;
 } __attribute__((packed));
 
 struct nftl_uci2 {
-        uint16_t FoldMark;
-        uint16_t FoldMark1;
-	uint32_t unused;
+        __u16 FoldMark;
+        __u16 FoldMark1;
+	__u32 unused;
 } __attribute__((packed));
 
 union nftl_uci {
@@ -50,9 +52,9 @@ struct nftl_oob {
 
 struct NFTLMediaHeader {
 	char DataOrgID[6];
-	uint16_t NumEraseUnits;
-	uint16_t FirstPhysicalEUN;
-	uint32_t FormattedSize;
+	__u16 NumEraseUnits;
+	__u16 FirstPhysicalEUN;
+	__u32 FormattedSize;
 	unsigned char UnitSizeFactor;
 } __attribute__((packed));
 
diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h
index 296efae3525e..466a8320f1e6 100644
--- a/include/mtd/ubi-user.h
+++ b/include/mtd/ubi-user.h
@@ -21,6 +21,8 @@
 #ifndef __UBI_USER_H__
 #define __UBI_USER_H__
 
+#include <linux/types.h>
+
 /*
  * UBI device creation (the same as MTD device attachment)
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -152,7 +154,7 @@
 /* Create an UBI volume */
 #define UBI_IOCMKVOL _IOW(UBI_IOC_MAGIC, 0, struct ubi_mkvol_req)
 /* Remove an UBI volume */
-#define UBI_IOCRMVOL _IOW(UBI_IOC_MAGIC, 1, int32_t)
+#define UBI_IOCRMVOL _IOW(UBI_IOC_MAGIC, 1, __s32)
 /* Re-size an UBI volume */
 #define UBI_IOCRSVOL _IOW(UBI_IOC_MAGIC, 2, struct ubi_rsvol_req)
 /* Re-name volumes */
@@ -165,24 +167,24 @@
 /* Attach an MTD device */
 #define UBI_IOCATT _IOW(UBI_CTRL_IOC_MAGIC, 64, struct ubi_attach_req)
 /* Detach an MTD device */
-#define UBI_IOCDET _IOW(UBI_CTRL_IOC_MAGIC, 65, int32_t)
+#define UBI_IOCDET _IOW(UBI_CTRL_IOC_MAGIC, 65, __s32)
 
 /* ioctl commands of UBI volume character devices */
 
 #define UBI_VOL_IOC_MAGIC 'O'
 
 /* Start UBI volume update */
-#define UBI_IOCVOLUP _IOW(UBI_VOL_IOC_MAGIC, 0, int64_t)
+#define UBI_IOCVOLUP _IOW(UBI_VOL_IOC_MAGIC, 0, __s64)
 /* LEB erasure command, used for debugging, disabled by default */
-#define UBI_IOCEBER _IOW(UBI_VOL_IOC_MAGIC, 1, int32_t)
+#define UBI_IOCEBER _IOW(UBI_VOL_IOC_MAGIC, 1, __s32)
 /* Atomic LEB change command */
-#define UBI_IOCEBCH _IOW(UBI_VOL_IOC_MAGIC, 2, int32_t)
+#define UBI_IOCEBCH _IOW(UBI_VOL_IOC_MAGIC, 2, __s32)
 /* Map LEB command */
 #define UBI_IOCEBMAP _IOW(UBI_VOL_IOC_MAGIC, 3, struct ubi_map_req)
 /* Unmap LEB command */
-#define UBI_IOCEBUNMAP _IOW(UBI_VOL_IOC_MAGIC, 4, int32_t)
+#define UBI_IOCEBUNMAP _IOW(UBI_VOL_IOC_MAGIC, 4, __s32)
 /* Check if LEB is mapped command */
-#define UBI_IOCEBISMAP _IOR(UBI_VOL_IOC_MAGIC, 5, int32_t)
+#define UBI_IOCEBISMAP _IOR(UBI_VOL_IOC_MAGIC, 5, __s32)
 /* Set an UBI volume property */
 #define UBI_IOCSETPROP _IOW(UBI_VOL_IOC_MAGIC, 6, struct ubi_set_prop_req)
 
@@ -260,10 +262,10 @@ enum {
  * sub-page of the first page and add needed padding.
  */
 struct ubi_attach_req {
-	int32_t ubi_num;
-	int32_t mtd_num;
-	int32_t vid_hdr_offset;
-	int8_t padding[12];
+	__s32 ubi_num;
+	__s32 mtd_num;
+	__s32 vid_hdr_offset;
+	__s8 padding[12];
 };
 
 /**
@@ -298,13 +300,13 @@ struct ubi_attach_req {
  * BLOBs, without caring about how to properly align them.
  */
 struct ubi_mkvol_req {
-	int32_t vol_id;
-	int32_t alignment;
-	int64_t bytes;
-	int8_t vol_type;
-	int8_t padding1;
-	int16_t name_len;
-	int8_t padding2[4];
+	__s32 vol_id;
+	__s32 alignment;
+	__s64 bytes;
+	__s8 vol_type;
+	__s8 padding1;
+	__s16 name_len;
+	__s8 padding2[4];
 	char name[UBI_MAX_VOLUME_NAME + 1];
 } __attribute__ ((packed));
 
@@ -320,8 +322,8 @@ struct ubi_mkvol_req {
  * zero number of bytes).
  */
 struct ubi_rsvol_req {
-	int64_t bytes;
-	int32_t vol_id;
+	__s64 bytes;
+	__s32 vol_id;
 } __attribute__ ((packed));
 
 /**
@@ -356,12 +358,12 @@ struct ubi_rsvol_req {
  * re-name request.
  */
 struct ubi_rnvol_req {
-	int32_t count;
-	int8_t padding1[12];
+	__s32 count;
+	__s8 padding1[12];
 	struct {
-		int32_t vol_id;
-		int16_t name_len;
-		int8_t  padding2[2];
+		__s32 vol_id;
+		__s16 name_len;
+		__s8  padding2[2];
 		char    name[UBI_MAX_VOLUME_NAME + 1];
 	} ents[UBI_MAX_RNVOL];
 } __attribute__ ((packed));
@@ -375,10 +377,10 @@ struct ubi_rnvol_req {
  * @padding: reserved for future, not used, has to be zeroed
  */
 struct ubi_leb_change_req {
-	int32_t lnum;
-	int32_t bytes;
-	int8_t  dtype;
-	int8_t  padding[7];
+	__s32 lnum;
+	__s32 bytes;
+	__s8  dtype;
+	__s8  padding[7];
 } __attribute__ ((packed));
 
 /**
@@ -388,9 +390,9 @@ struct ubi_leb_change_req {
  * @padding: reserved for future, not used, has to be zeroed
  */
 struct ubi_map_req {
-	int32_t lnum;
-	int8_t  dtype;
-	int8_t  padding[3];
+	__s32 lnum;
+	__s8  dtype;
+	__s8  padding[3];
 } __attribute__ ((packed));
 
 
@@ -402,9 +404,9 @@ struct ubi_map_req {
  * @value: value to set
  */
 struct ubi_set_prop_req {
-       uint8_t  property;
-       uint8_t  padding[7];
-       uint64_t value;
+       __u8  property;
+       __u8  padding[7];
+       __u64 value;
 }  __attribute__ ((packed));
 
 #endif /* __UBI_USER_H__ */
-- 
cgit v1.2.3


From 1d7f83d5ad6c30b385ba549c1c3a287cc872b7ae Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 26 Feb 2009 00:51:42 +0100
Subject: make drm headers use strict integer types

The drm headers are traditionally shared with BSD and
could not use the strict linux integer types. This is
over now, so we can use our own types now.

Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/drm/drm.h        |  21 ++++---
 include/drm/drm_mode.h   | 153 +++++++++++++++++++++++------------------------
 include/drm/i915_drm.h   | 140 +++++++++++++++++++++----------------------
 include/drm/mga_drm.h    |  18 +++---
 include/drm/radeon_drm.h |   4 +-
 include/drm/via_drm.h    |  42 ++++++-------
 6 files changed, 190 insertions(+), 188 deletions(-)

(limited to 'include')

diff --git a/include/drm/drm.h b/include/drm/drm.h
index 8e77357334ad..7cb50bdde46d 100644
--- a/include/drm/drm.h
+++ b/include/drm/drm.h
@@ -36,8 +36,7 @@
 #ifndef _DRM_H_
 #define _DRM_H_
 
-#if defined(__KERNEL__)
-#endif
+#include <linux/types.h>
 #include <asm/ioctl.h>		/* For _IO* macros */
 #define DRM_IOCTL_NR(n)		_IOC_NR(n)
 #define DRM_IOC_VOID		_IOC_NONE
@@ -497,8 +496,8 @@ union drm_wait_vblank {
  * \sa drmModesetCtl().
  */
 struct drm_modeset_ctl {
-	uint32_t crtc;
-	uint32_t cmd;
+	__u32 crtc;
+	__u32 cmd;
 };
 
 /**
@@ -574,29 +573,29 @@ struct drm_set_version {
 /** DRM_IOCTL_GEM_CLOSE ioctl argument type */
 struct drm_gem_close {
 	/** Handle of the object to be closed. */
-	uint32_t handle;
-	uint32_t pad;
+	__u32 handle;
+	__u32 pad;
 };
 
 /** DRM_IOCTL_GEM_FLINK ioctl argument type */
 struct drm_gem_flink {
 	/** Handle for the object being named */
-	uint32_t handle;
+	__u32 handle;
 
 	/** Returned global name */
-	uint32_t name;
+	__u32 name;
 };
 
 /** DRM_IOCTL_GEM_OPEN ioctl argument type */
 struct drm_gem_open {
 	/** Name of object being opened */
-	uint32_t name;
+	__u32 name;
 
 	/** Returned handle for the object */
-	uint32_t handle;
+	__u32 handle;
 
 	/** Returned size of the object */
-	uint64_t size;
+	__u64 size;
 };
 
 #include "drm_mode.h"
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index 601d2bd839f6..ae304cc73c90 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -27,11 +27,8 @@
 #ifndef _DRM_MODE_H
 #define _DRM_MODE_H
 
-#if !defined(__KERNEL__) && !defined(_KERNEL)
-#include <stdint.h>
-#else
 #include <linux/kernel.h>
-#endif
+#include <linux/types.h>
 
 #define DRM_DISPLAY_INFO_LEN	32
 #define DRM_CONNECTOR_NAME_LEN	32
@@ -81,41 +78,41 @@
 #define DRM_MODE_DITHERING_ON	1
 
 struct drm_mode_modeinfo {
-	uint32_t clock;
-	uint16_t hdisplay, hsync_start, hsync_end, htotal, hskew;
-	uint16_t vdisplay, vsync_start, vsync_end, vtotal, vscan;
+	__u32 clock;
+	__u16 hdisplay, hsync_start, hsync_end, htotal, hskew;
+	__u16 vdisplay, vsync_start, vsync_end, vtotal, vscan;
 
-	uint32_t vrefresh; /* vertical refresh * 1000 */
+	__u32 vrefresh; /* vertical refresh * 1000 */
 
-	uint32_t flags;
-	uint32_t type;
+	__u32 flags;
+	__u32 type;
 	char name[DRM_DISPLAY_MODE_LEN];
 };
 
 struct drm_mode_card_res {
-	uint64_t fb_id_ptr;
-	uint64_t crtc_id_ptr;
-	uint64_t connector_id_ptr;
-	uint64_t encoder_id_ptr;
-	uint32_t count_fbs;
-	uint32_t count_crtcs;
-	uint32_t count_connectors;
-	uint32_t count_encoders;
-	uint32_t min_width, max_width;
-	uint32_t min_height, max_height;
+	__u64 fb_id_ptr;
+	__u64 crtc_id_ptr;
+	__u64 connector_id_ptr;
+	__u64 encoder_id_ptr;
+	__u32 count_fbs;
+	__u32 count_crtcs;
+	__u32 count_connectors;
+	__u32 count_encoders;
+	__u32 min_width, max_width;
+	__u32 min_height, max_height;
 };
 
 struct drm_mode_crtc {
-	uint64_t set_connectors_ptr;
-	uint32_t count_connectors;
+	__u64 set_connectors_ptr;
+	__u32 count_connectors;
 
-	uint32_t crtc_id; /**< Id */
-	uint32_t fb_id; /**< Id of framebuffer */
+	__u32 crtc_id; /**< Id */
+	__u32 fb_id; /**< Id of framebuffer */
 
-	uint32_t x, y; /**< Position on the frameuffer */
+	__u32 x, y; /**< Position on the frameuffer */
 
-	uint32_t gamma_size;
-	uint32_t mode_valid;
+	__u32 gamma_size;
+	__u32 mode_valid;
 	struct drm_mode_modeinfo mode;
 };
 
@@ -126,13 +123,13 @@ struct drm_mode_crtc {
 #define DRM_MODE_ENCODER_TVDAC	4
 
 struct drm_mode_get_encoder {
-	uint32_t encoder_id;
-	uint32_t encoder_type;
+	__u32 encoder_id;
+	__u32 encoder_type;
 
-	uint32_t crtc_id; /**< Id of crtc */
+	__u32 crtc_id; /**< Id of crtc */
 
-	uint32_t possible_crtcs;
-	uint32_t possible_clones;
+	__u32 possible_crtcs;
+	__u32 possible_clones;
 };
 
 /* This is for connectors with multiple signal types. */
@@ -161,23 +158,23 @@ struct drm_mode_get_encoder {
 
 struct drm_mode_get_connector {
 
-	uint64_t encoders_ptr;
-	uint64_t modes_ptr;
-	uint64_t props_ptr;
-	uint64_t prop_values_ptr;
+	__u64 encoders_ptr;
+	__u64 modes_ptr;
+	__u64 props_ptr;
+	__u64 prop_values_ptr;
 
-	uint32_t count_modes;
-	uint32_t count_props;
-	uint32_t count_encoders;
+	__u32 count_modes;
+	__u32 count_props;
+	__u32 count_encoders;
 
-	uint32_t encoder_id; /**< Current Encoder */
-	uint32_t connector_id; /**< Id */
-	uint32_t connector_type;
-	uint32_t connector_type_id;
+	__u32 encoder_id; /**< Current Encoder */
+	__u32 connector_id; /**< Id */
+	__u32 connector_type;
+	__u32 connector_type_id;
 
-	uint32_t connection;
-	uint32_t mm_width, mm_height; /**< HxW in millimeters */
-	uint32_t subpixel;
+	__u32 connection;
+	__u32 mm_width, mm_height; /**< HxW in millimeters */
+	__u32 subpixel;
 };
 
 #define DRM_MODE_PROP_PENDING	(1<<0)
@@ -187,46 +184,46 @@ struct drm_mode_get_connector {
 #define DRM_MODE_PROP_BLOB	(1<<4)
 
 struct drm_mode_property_enum {
-	uint64_t value;
+	__u64 value;
 	char name[DRM_PROP_NAME_LEN];
 };
 
 struct drm_mode_get_property {
-	uint64_t values_ptr; /* values and blob lengths */
-	uint64_t enum_blob_ptr; /* enum and blob id ptrs */
+	__u64 values_ptr; /* values and blob lengths */
+	__u64 enum_blob_ptr; /* enum and blob id ptrs */
 
-	uint32_t prop_id;
-	uint32_t flags;
+	__u32 prop_id;
+	__u32 flags;
 	char name[DRM_PROP_NAME_LEN];
 
-	uint32_t count_values;
-	uint32_t count_enum_blobs;
+	__u32 count_values;
+	__u32 count_enum_blobs;
 };
 
 struct drm_mode_connector_set_property {
-	uint64_t value;
-	uint32_t prop_id;
-	uint32_t connector_id;
+	__u64 value;
+	__u32 prop_id;
+	__u32 connector_id;
 };
 
 struct drm_mode_get_blob {
-	uint32_t blob_id;
-	uint32_t length;
-	uint64_t data;
+	__u32 blob_id;
+	__u32 length;
+	__u64 data;
 };
 
 struct drm_mode_fb_cmd {
-	uint32_t fb_id;
-	uint32_t width, height;
-	uint32_t pitch;
-	uint32_t bpp;
-	uint32_t depth;
+	__u32 fb_id;
+	__u32 width, height;
+	__u32 pitch;
+	__u32 bpp;
+	__u32 depth;
 	/* driver specific handle */
-	uint32_t handle;
+	__u32 handle;
 };
 
 struct drm_mode_mode_cmd {
-	uint32_t connector_id;
+	__u32 connector_id;
 	struct drm_mode_modeinfo mode;
 };
 
@@ -248,24 +245,24 @@ struct drm_mode_mode_cmd {
  *    y
  */
 struct drm_mode_cursor {
-	uint32_t flags;
-	uint32_t crtc_id;
-	int32_t x;
-	int32_t y;
-	uint32_t width;
-	uint32_t height;
+	__u32 flags;
+	__u32 crtc_id;
+	__s32 x;
+	__s32 y;
+	__u32 width;
+	__u32 height;
 	/* driver specific handle */
-	uint32_t handle;
+	__u32 handle;
 };
 
 struct drm_mode_crtc_lut {
-	uint32_t crtc_id;
-	uint32_t gamma_size;
+	__u32 crtc_id;
+	__u32 gamma_size;
 
 	/* pointers to arrays */
-	uint64_t red;
-	uint64_t green;
-	uint64_t blue;
+	__u64 red;
+	__u64 green;
+	__u64 blue;
 };
 
 #endif
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index b3bcf72dc656..641b9b210d3c 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -30,7 +30,7 @@
 /* Please note that modifications to all structs defined here are
  * subject to backwards-compatibility constraints.
  */
-
+#include <linux/types.h>
 #include "drm.h"
 
 /* Each region is a minimum of 16k, and there are at most 255 of them.
@@ -116,15 +116,15 @@ typedef struct _drm_i915_sarea {
 
 	/* fill out some space for old userspace triple buffer */
 	drm_handle_t unused_handle;
-	uint32_t unused1, unused2, unused3;
+	__u32 unused1, unused2, unused3;
 
 	/* buffer object handles for static buffers. May change
 	 * over the lifetime of the client.
 	 */
-	uint32_t front_bo_handle;
-	uint32_t back_bo_handle;
-	uint32_t unused_bo_handle;
-	uint32_t depth_bo_handle;
+	__u32 front_bo_handle;
+	__u32 back_bo_handle;
+	__u32 unused_bo_handle;
+	__u32 depth_bo_handle;
 
 } drm_i915_sarea_t;
 
@@ -325,7 +325,7 @@ typedef struct drm_i915_vblank_swap {
 } drm_i915_vblank_swap_t;
 
 typedef struct drm_i915_hws_addr {
-	uint64_t addr;
+	__u64 addr;
 } drm_i915_hws_addr_t;
 
 struct drm_i915_gem_init {
@@ -333,12 +333,12 @@ struct drm_i915_gem_init {
 	 * Beginning offset in the GTT to be managed by the DRM memory
 	 * manager.
 	 */
-	uint64_t gtt_start;
+	__u64 gtt_start;
 	/**
 	 * Ending offset in the GTT to be managed by the DRM memory
 	 * manager.
 	 */
-	uint64_t gtt_end;
+	__u64 gtt_end;
 };
 
 struct drm_i915_gem_create {
@@ -347,94 +347,94 @@ struct drm_i915_gem_create {
 	 *
 	 * The (page-aligned) allocated size for the object will be returned.
 	 */
-	uint64_t size;
+	__u64 size;
 	/**
 	 * Returned handle for the object.
 	 *
 	 * Object handles are nonzero.
 	 */
-	uint32_t handle;
-	uint32_t pad;
+	__u32 handle;
+	__u32 pad;
 };
 
 struct drm_i915_gem_pread {
 	/** Handle for the object being read. */
-	uint32_t handle;
-	uint32_t pad;
+	__u32 handle;
+	__u32 pad;
 	/** Offset into the object to read from */
-	uint64_t offset;
+	__u64 offset;
 	/** Length of data to read */
-	uint64_t size;
+	__u64 size;
 	/**
 	 * Pointer to write the data into.
 	 *
 	 * This is a fixed-size type for 32/64 compatibility.
 	 */
-	uint64_t data_ptr;
+	__u64 data_ptr;
 };
 
 struct drm_i915_gem_pwrite {
 	/** Handle for the object being written to. */
-	uint32_t handle;
-	uint32_t pad;
+	__u32 handle;
+	__u32 pad;
 	/** Offset into the object to write to */
-	uint64_t offset;
+	__u64 offset;
 	/** Length of data to write */
-	uint64_t size;
+	__u64 size;
 	/**
 	 * Pointer to read the data from.
 	 *
 	 * This is a fixed-size type for 32/64 compatibility.
 	 */
-	uint64_t data_ptr;
+	__u64 data_ptr;
 };
 
 struct drm_i915_gem_mmap {
 	/** Handle for the object being mapped. */
-	uint32_t handle;
-	uint32_t pad;
+	__u32 handle;
+	__u32 pad;
 	/** Offset in the object to map. */
-	uint64_t offset;
+	__u64 offset;
 	/**
 	 * Length of data to map.
 	 *
 	 * The value will be page-aligned.
 	 */
-	uint64_t size;
+	__u64 size;
 	/**
 	 * Returned pointer the data was mapped at.
 	 *
 	 * This is a fixed-size type for 32/64 compatibility.
 	 */
-	uint64_t addr_ptr;
+	__u64 addr_ptr;
 };
 
 struct drm_i915_gem_mmap_gtt {
 	/** Handle for the object being mapped. */
-	uint32_t handle;
-	uint32_t pad;
+	__u32 handle;
+	__u32 pad;
 	/**
 	 * Fake offset to use for subsequent mmap call
 	 *
 	 * This is a fixed-size type for 32/64 compatibility.
 	 */
-	uint64_t offset;
+	__u64 offset;
 };
 
 struct drm_i915_gem_set_domain {
 	/** Handle for the object */
-	uint32_t handle;
+	__u32 handle;
 
 	/** New read domains */
-	uint32_t read_domains;
+	__u32 read_domains;
 
 	/** New write domain */
-	uint32_t write_domain;
+	__u32 write_domain;
 };
 
 struct drm_i915_gem_sw_finish {
 	/** Handle for the object */
-	uint32_t handle;
+	__u32 handle;
 };
 
 struct drm_i915_gem_relocation_entry {
@@ -446,16 +446,16 @@ struct drm_i915_gem_relocation_entry {
 	 * a relocation list for state buffers and not re-write it per
 	 * exec using the buffer.
 	 */
-	uint32_t target_handle;
+	__u32 target_handle;
 
 	/**
 	 * Value to be added to the offset of the target buffer to make up
 	 * the relocation entry.
 	 */
-	uint32_t delta;
+	__u32 delta;
 
 	/** Offset in the buffer the relocation entry will be written into */
-	uint64_t offset;
+	__u64 offset;
 
 	/**
 	 * Offset value of the target buffer that the relocation entry was last
@@ -465,12 +465,12 @@ struct drm_i915_gem_relocation_entry {
 	 * and writing the relocation.  This value is written back out by
 	 * the execbuffer ioctl when the relocation is written.
 	 */
-	uint64_t presumed_offset;
+	__u64 presumed_offset;
 
 	/**
 	 * Target memory domains read by this operation.
 	 */
-	uint32_t read_domains;
+	__u32 read_domains;
 
 	/**
 	 * Target memory domains written by this operation.
@@ -479,7 +479,7 @@ struct drm_i915_gem_relocation_entry {
 	 * execbuffer operation, so that where there are conflicts,
 	 * the application will get -EINVAL back.
 	 */
-	uint32_t write_domain;
+	__u32 write_domain;
 };
 
 /** @{
@@ -510,24 +510,24 @@ struct drm_i915_gem_exec_object {
 	 * User's handle for a buffer to be bound into the GTT for this
 	 * operation.
 	 */
-	uint32_t handle;
+	__u32 handle;
 
 	/** Number of relocations to be performed on this buffer */
-	uint32_t relocation_count;
+	__u32 relocation_count;
 	/**
 	 * Pointer to array of struct drm_i915_gem_relocation_entry containing
 	 * the relocations to be performed in this buffer.
 	 */
-	uint64_t relocs_ptr;
+	__u64 relocs_ptr;
 
 	/** Required alignment in graphics aperture */
-	uint64_t alignment;
+	__u64 alignment;
 
 	/**
 	 * Returned value of the updated offset of the object, for future
 	 * presumed_offset writes.
 	 */
-	uint64_t offset;
+	__u64 offset;
 };
 
 struct drm_i915_gem_execbuffer {
@@ -541,44 +541,44 @@ struct drm_i915_gem_execbuffer {
 	 * a buffer is performing refer to buffers that have already appeared
 	 * in the validate list.
 	 */
-	uint64_t buffers_ptr;
-	uint32_t buffer_count;
+	__u64 buffers_ptr;
+	__u32 buffer_count;
 
 	/** Offset in the batchbuffer to start execution from. */
-	uint32_t batch_start_offset;
+	__u32 batch_start_offset;
 	/** Bytes used in batchbuffer from batch_start_offset */
-	uint32_t batch_len;
-	uint32_t DR1;
-	uint32_t DR4;
-	uint32_t num_cliprects;
+	__u32 batch_len;
+	__u32 DR1;
+	__u32 DR4;
+	__u32 num_cliprects;
 	/** This is a struct drm_clip_rect *cliprects */
-	uint64_t cliprects_ptr;
+	__u64 cliprects_ptr;
 };
 
 struct drm_i915_gem_pin {
 	/** Handle of the buffer to be pinned. */
-	uint32_t handle;
-	uint32_t pad;
+	__u32 handle;
+	__u32 pad;
 
 	/** alignment required within the aperture */
-	uint64_t alignment;
+	__u64 alignment;
 
 	/** Returned GTT offset of the buffer. */
-	uint64_t offset;
+	__u64 offset;
 };
 
 struct drm_i915_gem_unpin {
 	/** Handle of the buffer to be unpinned. */
-	uint32_t handle;
-	uint32_t pad;
+	__u32 handle;
+	__u32 pad;
 };
 
 struct drm_i915_gem_busy {
 	/** Handle of the buffer to check for busy */
-	uint32_t handle;
+	__u32 handle;
 
 	/** Return busy status (1 if busy, 0 if idle) */
-	uint32_t busy;
+	__u32 busy;
 };
 
 #define I915_TILING_NONE	0
@@ -595,7 +595,7 @@ struct drm_i915_gem_busy {
 
 struct drm_i915_gem_set_tiling {
 	/** Handle of the buffer to have its tiling state updated */
-	uint32_t handle;
+	__u32 handle;
 
 	/**
 	 * Tiling mode for the object (I915_TILING_NONE, I915_TILING_X,
@@ -609,47 +609,47 @@ struct drm_i915_gem_set_tiling {
 	 *
 	 * Buffer contents become undefined when changing tiling_mode.
 	 */
-	uint32_t tiling_mode;
+	__u32 tiling_mode;
 
 	/**
 	 * Stride in bytes for the object when in I915_TILING_X or
 	 * I915_TILING_Y.
 	 */
-	uint32_t stride;
+	__u32 stride;
 
 	/**
 	 * Returned address bit 6 swizzling required for CPU access through
 	 * mmap mapping.
 	 */
-	uint32_t swizzle_mode;
+	__u32 swizzle_mode;
 };
 
 struct drm_i915_gem_get_tiling {
 	/** Handle of the buffer to get tiling state for. */
-	uint32_t handle;
+	__u32 handle;
 
 	/**
 	 * Current tiling mode for the object (I915_TILING_NONE, I915_TILING_X,
 	 * I915_TILING_Y).
 	 */
-	uint32_t tiling_mode;
+	__u32 tiling_mode;
 
 	/**
 	 * Returned address bit 6 swizzling required for CPU access through
 	 * mmap mapping.
 	 */
-	uint32_t swizzle_mode;
+	__u32 swizzle_mode;
 };
 
 struct drm_i915_gem_get_aperture {
 	/** Total size of the aperture used by i915_gem_execbuffer, in bytes */
-	uint64_t aper_size;
+	__u64 aper_size;
 
 	/**
 	 * Available space in the aperture used by i915_gem_execbuffer, in
 	 * bytes
 	 */
-	uint64_t aper_available_size;
+	__u64 aper_available_size;
 };
 
 #endif				/* _I915_DRM_H_ */
diff --git a/include/drm/mga_drm.h b/include/drm/mga_drm.h
index 944b50a5ff24..325fd6fb4a42 100644
--- a/include/drm/mga_drm.h
+++ b/include/drm/mga_drm.h
@@ -35,6 +35,8 @@
 #ifndef __MGA_DRM_H__
 #define __MGA_DRM_H__
 
+#include <linux/types.h>
+
 /* WARNING: If you change any of these defines, make sure to change the
  * defines in the Xserver file (mga_sarea.h)
  */
@@ -255,8 +257,8 @@ typedef struct _drm_mga_sarea {
 #define DRM_IOCTL_MGA_ILOAD    DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_ILOAD, drm_mga_iload_t)
 #define DRM_IOCTL_MGA_BLIT     DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_BLIT, drm_mga_blit_t)
 #define DRM_IOCTL_MGA_GETPARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_GETPARAM, drm_mga_getparam_t)
-#define DRM_IOCTL_MGA_SET_FENCE     DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_SET_FENCE, uint32_t)
-#define DRM_IOCTL_MGA_WAIT_FENCE    DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_WAIT_FENCE, uint32_t)
+#define DRM_IOCTL_MGA_SET_FENCE     DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_SET_FENCE, __u32)
+#define DRM_IOCTL_MGA_WAIT_FENCE    DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_WAIT_FENCE, __u32)
 #define DRM_IOCTL_MGA_DMA_BOOTSTRAP DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_DMA_BOOTSTRAP, drm_mga_dma_bootstrap_t)
 
 typedef struct _drm_mga_warp_index {
@@ -310,7 +312,7 @@ typedef struct drm_mga_dma_bootstrap {
 	 */
 	/*@{ */
 	unsigned long texture_handle; /**< Handle used to map AGP textures. */
-	uint32_t texture_size;	      /**< Size of the AGP texture region. */
+	__u32 texture_size;	      /**< Size of the AGP texture region. */
 	/*@} */
 
 	/**
@@ -319,7 +321,7 @@ typedef struct drm_mga_dma_bootstrap {
 	 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, this field will be
 	 * filled in with the actual AGP mode.  If AGP was not available
 	 */
-	uint32_t primary_size;
+	__u32 primary_size;
 
 	/**
 	 * Requested number of secondary DMA buffers.
@@ -329,7 +331,7 @@ typedef struct drm_mga_dma_bootstrap {
 	 * allocated.  Particularly when PCI DMA is used, this may be
 	 * (subtantially) less than the number requested.
 	 */
-	uint32_t secondary_bin_count;
+	__u32 secondary_bin_count;
 
 	/**
 	 * Requested size of each secondary DMA buffer.
@@ -338,7 +340,7 @@ typedef struct drm_mga_dma_bootstrap {
 	 * dma_mga_dma_bootstrap::secondary_bin_count, it is \b not allowed
 	 * to reduce dma_mga_dma_bootstrap::secondary_bin_size.
 	 */
-	uint32_t secondary_bin_size;
+	__u32 secondary_bin_size;
 
 	/**
 	 * Bit-wise mask of AGPSTAT2_* values.  Currently only \c AGPSTAT2_1X,
@@ -350,12 +352,12 @@ typedef struct drm_mga_dma_bootstrap {
 	 * filled in with the actual AGP mode.  If AGP was not available
 	 * (i.e., PCI DMA was used), this value will be zero.
 	 */
-	uint32_t agp_mode;
+	__u32 agp_mode;
 
 	/**
 	 * Desired AGP GART size, measured in megabytes.
 	 */
-	uint8_t agp_size;
+	__u8 agp_size;
 } drm_mga_dma_bootstrap_t;
 
 typedef struct drm_mga_clear {
diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index 73ff51f12311..72ecf67ad3ec 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -33,6 +33,8 @@
 #ifndef __RADEON_DRM_H__
 #define __RADEON_DRM_H__
 
+#include <linux/types.h>
+
 /* WARNING: If you change any of these defines, make sure to change the
  * defines in the X server file (radeon_sarea.h)
  */
@@ -722,7 +724,7 @@ typedef struct drm_radeon_irq_wait {
 
 typedef struct drm_radeon_setparam {
 	unsigned int param;
-	int64_t value;
+	__s64 value;
 } drm_radeon_setparam_t;
 
 #define RADEON_SETPARAM_FB_LOCATION    1	/* determined framebuffer location */
diff --git a/include/drm/via_drm.h b/include/drm/via_drm.h
index a3b5c102b067..170786e5c2ff 100644
--- a/include/drm/via_drm.h
+++ b/include/drm/via_drm.h
@@ -24,6 +24,8 @@
 #ifndef _VIA_DRM_H_
 #define _VIA_DRM_H_
 
+#include <linux/types.h>
+
 /* WARNING: These defines must be the same as what the Xserver uses.
  * if you change them, you must change the defines in the Xserver.
  */
@@ -114,19 +116,19 @@
 #define VIA_MEM_UNKNOWN 4
 
 typedef struct {
-	uint32_t offset;
-	uint32_t size;
+	__u32 offset;
+	__u32 size;
 } drm_via_agp_t;
 
 typedef struct {
-	uint32_t offset;
-	uint32_t size;
+	__u32 offset;
+	__u32 size;
 } drm_via_fb_t;
 
 typedef struct {
-	uint32_t context;
-	uint32_t type;
-	uint32_t size;
+	__u32 context;
+	__u32 type;
+	__u32 size;
 	unsigned long index;
 	unsigned long offset;
 } drm_via_mem_t;
@@ -148,9 +150,9 @@ typedef struct _drm_via_futex {
 		VIA_FUTEX_WAIT = 0x00,
 		VIA_FUTEX_WAKE = 0X01
 	} func;
-	uint32_t ms;
-	uint32_t lock;
-	uint32_t val;
+	__u32 ms;
+	__u32 lock;
+	__u32 val;
 } drm_via_futex_t;
 
 typedef struct _drm_via_dma_init {
@@ -211,7 +213,7 @@ typedef struct _drm_via_cmdbuf_size {
 		VIA_CMDBUF_LAG = 0x02
 	} func;
 	int wait;
-	uint32_t size;
+	__u32 size;
 } drm_via_cmdbuf_size_t;
 
 typedef enum {
@@ -236,8 +238,8 @@ enum drm_via_irqs {
 struct drm_via_wait_irq_request {
 	unsigned irq;
 	via_irq_seq_type_t type;
-	uint32_t sequence;
-	uint32_t signal;
+	__u32 sequence;
+	__u32 signal;
 };
 
 typedef union drm_via_irqwait {
@@ -246,7 +248,7 @@ typedef union drm_via_irqwait {
 } drm_via_irqwait_t;
 
 typedef struct drm_via_blitsync {
-	uint32_t sync_handle;
+	__u32 sync_handle;
 	unsigned engine;
 } drm_via_blitsync_t;
 
@@ -257,16 +259,16 @@ typedef struct drm_via_blitsync {
  */
 
 typedef struct drm_via_dmablit {
-	uint32_t num_lines;
-	uint32_t line_length;
+	__u32 num_lines;
+	__u32 line_length;
 
-	uint32_t fb_addr;
-	uint32_t fb_stride;
+	__u32 fb_addr;
+	__u32 fb_stride;
 
 	unsigned char *mem_addr;
-	uint32_t mem_stride;
+	__u32 mem_stride;
 
-	uint32_t flags;
+	__u32 flags;
 	int to_fb;
 
 	drm_via_blitsync_t sync;
-- 
cgit v1.2.3


From 60c195c729532815c5209c81442fa0eb26ace706 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 26 Feb 2009 00:51:43 +0100
Subject: make netfilter use strict integer types

Netfilter traditionally uses BSD integer types in its
interface headers. This changes it to use the Linux
strict integer types, like everyone else.

Cc: netfilter-devel@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/netfilter/nf_conntrack_tcp.h |  6 +++--
 include/linux/netfilter/nfnetlink.h        |  4 ++--
 include/linux/netfilter/nfnetlink_compat.h |  7 ++++--
 include/linux/netfilter/nfnetlink_log.h    | 32 +++++++++++++-------------
 include/linux/netfilter/nfnetlink_queue.h  | 24 ++++++++++----------
 include/linux/netfilter/x_tables.h         | 30 +++++++++++++------------
 include/linux/netfilter/xt_CLASSIFY.h      |  4 +++-
 include/linux/netfilter/xt_CONNMARK.h      |  8 ++++---
 include/linux/netfilter/xt_CONNSECMARK.h   |  4 +++-
 include/linux/netfilter/xt_DSCP.h          |  7 +++---
 include/linux/netfilter/xt_MARK.h          |  6 +++--
 include/linux/netfilter/xt_NFLOG.h         | 12 +++++-----
 include/linux/netfilter/xt_NFQUEUE.h       |  4 +++-
 include/linux/netfilter/xt_RATEEST.h       |  6 +++--
 include/linux/netfilter/xt_SECMARK.h       |  6 +++--
 include/linux/netfilter/xt_TCPMSS.h        |  4 +++-
 include/linux/netfilter/xt_connbytes.h     |  6 +++--
 include/linux/netfilter/xt_connmark.h      |  8 ++++---
 include/linux/netfilter/xt_conntrack.h     | 12 +++++-----
 include/linux/netfilter/xt_dccp.h          | 14 +++++++-----
 include/linux/netfilter/xt_dscp.h          | 12 +++++-----
 include/linux/netfilter/xt_esp.h           |  6 +++--
 include/linux/netfilter/xt_hashlimit.h     | 32 +++++++++++++-------------
 include/linux/netfilter/xt_iprange.h       |  4 +++-
 include/linux/netfilter/xt_length.h        |  6 +++--
 include/linux/netfilter/xt_limit.h         | 10 +++++----
 include/linux/netfilter/xt_mark.h          |  8 ++++---
 include/linux/netfilter/xt_multiport.h     | 18 ++++++++-------
 include/linux/netfilter/xt_owner.h         |  8 ++++---
 include/linux/netfilter/xt_physdev.h       |  6 +++--
 include/linux/netfilter/xt_policy.h        | 14 +++++++-----
 include/linux/netfilter/xt_rateest.h       | 14 +++++++-----
 include/linux/netfilter/xt_realm.h         |  8 ++++---
 include/linux/netfilter/xt_recent.h        | 12 +++++-----
 include/linux/netfilter/xt_sctp.h          | 36 ++++++++++++++++--------------
 include/linux/netfilter/xt_statistic.h     | 14 +++++++-----
 include/linux/netfilter/xt_string.h        | 12 +++++-----
 include/linux/netfilter/xt_tcpmss.h        |  6 +++--
 include/linux/netfilter/xt_tcpudp.h        | 20 +++++++++--------
 39 files changed, 260 insertions(+), 190 deletions(-)

(limited to 'include')

diff --git a/include/linux/netfilter/nf_conntrack_tcp.h b/include/linux/netfilter/nf_conntrack_tcp.h
index a049df4f2236..3066789b972a 100644
--- a/include/linux/netfilter/nf_conntrack_tcp.h
+++ b/include/linux/netfilter/nf_conntrack_tcp.h
@@ -2,6 +2,8 @@
 #define _NF_CONNTRACK_TCP_H
 /* TCP tracking. */
 
+#include <linux/types.h>
+
 /* This is exposed to userspace (ctnetlink) */
 enum tcp_conntrack {
 	TCP_CONNTRACK_NONE,
@@ -34,8 +36,8 @@ enum tcp_conntrack {
 #define IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED	0x10
 
 struct nf_ct_tcp_flags {
-	u_int8_t flags;
-	u_int8_t mask;
+	__u8 flags;
+	__u8 mask;
 };
 
 #ifdef __KERNEL__
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 7d8e0455ccac..e53546cfa353 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -25,8 +25,8 @@ enum nfnetlink_groups {
 /* General form of address family dependent message.
  */
 struct nfgenmsg {
-	u_int8_t  nfgen_family;		/* AF_xxx */
-	u_int8_t  version;		/* nfnetlink version */
+	__u8  nfgen_family;		/* AF_xxx */
+	__u8  version;		/* nfnetlink version */
 	__be16    res_id;		/* resource id */
 };
 
diff --git a/include/linux/netfilter/nfnetlink_compat.h b/include/linux/netfilter/nfnetlink_compat.h
index e1451760c9cd..eda55cabceec 100644
--- a/include/linux/netfilter/nfnetlink_compat.h
+++ b/include/linux/netfilter/nfnetlink_compat.h
@@ -1,5 +1,8 @@
 #ifndef _NFNETLINK_COMPAT_H
 #define _NFNETLINK_COMPAT_H
+
+#include <linux/types.h>
+
 #ifndef __KERNEL__
 /* Old nfnetlink macros for userspace */
 
@@ -20,8 +23,8 @@
 
 struct nfattr
 {
-	u_int16_t nfa_len;
-	u_int16_t nfa_type;	/* we use 15 bits for the type, and the highest
+	__u16 nfa_len;
+	__u16 nfa_type;	/* we use 15 bits for the type, and the highest
 				 * bit to indicate whether the payload is nested */
 };
 
diff --git a/include/linux/netfilter/nfnetlink_log.h b/include/linux/netfilter/nfnetlink_log.h
index f661731f3cb1..d3bab7a2c9b7 100644
--- a/include/linux/netfilter/nfnetlink_log.h
+++ b/include/linux/netfilter/nfnetlink_log.h
@@ -17,14 +17,14 @@ enum nfulnl_msg_types {
 
 struct nfulnl_msg_packet_hdr {
 	__be16		hw_protocol;	/* hw protocol (network order) */
-	u_int8_t	hook;		/* netfilter hook */
-	u_int8_t	_pad;
+	__u8	hook;		/* netfilter hook */
+	__u8	_pad;
 };
 
 struct nfulnl_msg_packet_hw {
 	__be16		hw_addrlen;
-	u_int16_t	_pad;
-	u_int8_t	hw_addr[8];
+	__u16	_pad;
+	__u8	hw_addr[8];
 };
 
 struct nfulnl_msg_packet_timestamp {
@@ -35,12 +35,12 @@ struct nfulnl_msg_packet_timestamp {
 enum nfulnl_attr_type {
 	NFULA_UNSPEC,
 	NFULA_PACKET_HDR,
-	NFULA_MARK,			/* u_int32_t nfmark */
+	NFULA_MARK,			/* __u32 nfmark */
 	NFULA_TIMESTAMP,		/* nfulnl_msg_packet_timestamp */
-	NFULA_IFINDEX_INDEV,		/* u_int32_t ifindex */
-	NFULA_IFINDEX_OUTDEV,		/* u_int32_t ifindex */
-	NFULA_IFINDEX_PHYSINDEV,	/* u_int32_t ifindex */
-	NFULA_IFINDEX_PHYSOUTDEV,	/* u_int32_t ifindex */
+	NFULA_IFINDEX_INDEV,		/* __u32 ifindex */
+	NFULA_IFINDEX_OUTDEV,		/* __u32 ifindex */
+	NFULA_IFINDEX_PHYSINDEV,	/* __u32 ifindex */
+	NFULA_IFINDEX_PHYSOUTDEV,	/* __u32 ifindex */
 	NFULA_HWADDR,			/* nfulnl_msg_packet_hw */
 	NFULA_PAYLOAD,			/* opaque data payload */
 	NFULA_PREFIX,			/* string prefix */
@@ -65,23 +65,23 @@ enum nfulnl_msg_config_cmds {
 };
 
 struct nfulnl_msg_config_cmd {
-	u_int8_t	command;	/* nfulnl_msg_config_cmds */
+	__u8	command;	/* nfulnl_msg_config_cmds */
 } __attribute__ ((packed));
 
 struct nfulnl_msg_config_mode {
 	__be32		copy_range;
-	u_int8_t	copy_mode;
-	u_int8_t	_pad;
+	__u8	copy_mode;
+	__u8	_pad;
 } __attribute__ ((packed));
 
 enum nfulnl_attr_config {
 	NFULA_CFG_UNSPEC,
 	NFULA_CFG_CMD,			/* nfulnl_msg_config_cmd */
 	NFULA_CFG_MODE,			/* nfulnl_msg_config_mode */
-	NFULA_CFG_NLBUFSIZ,		/* u_int32_t buffer size */
-	NFULA_CFG_TIMEOUT,		/* u_int32_t in 1/100 s */
-	NFULA_CFG_QTHRESH,		/* u_int32_t */
-	NFULA_CFG_FLAGS,		/* u_int16_t */
+	NFULA_CFG_NLBUFSIZ,		/* __u32 buffer size */
+	NFULA_CFG_TIMEOUT,		/* __u32 in 1/100 s */
+	NFULA_CFG_QTHRESH,		/* __u32 */
+	NFULA_CFG_FLAGS,		/* __u16 */
 	__NFULA_CFG_MAX
 };
 #define NFULA_CFG_MAX (__NFULA_CFG_MAX -1)
diff --git a/include/linux/netfilter/nfnetlink_queue.h b/include/linux/netfilter/nfnetlink_queue.h
index 83e789633e35..2455fe5f4e01 100644
--- a/include/linux/netfilter/nfnetlink_queue.h
+++ b/include/linux/netfilter/nfnetlink_queue.h
@@ -15,13 +15,13 @@ enum nfqnl_msg_types {
 struct nfqnl_msg_packet_hdr {
 	__be32		packet_id;	/* unique ID of packet in queue */
 	__be16		hw_protocol;	/* hw protocol (network order) */
-	u_int8_t	hook;		/* netfilter hook */
+	__u8	hook;		/* netfilter hook */
 } __attribute__ ((packed));
 
 struct nfqnl_msg_packet_hw {
 	__be16		hw_addrlen;
-	u_int16_t	_pad;
-	u_int8_t	hw_addr[8];
+	__u16	_pad;
+	__u8	hw_addr[8];
 };
 
 struct nfqnl_msg_packet_timestamp {
@@ -33,12 +33,12 @@ enum nfqnl_attr_type {
 	NFQA_UNSPEC,
 	NFQA_PACKET_HDR,
 	NFQA_VERDICT_HDR,		/* nfqnl_msg_verdict_hrd */
-	NFQA_MARK,			/* u_int32_t nfmark */
+	NFQA_MARK,			/* __u32 nfmark */
 	NFQA_TIMESTAMP,			/* nfqnl_msg_packet_timestamp */
-	NFQA_IFINDEX_INDEV,		/* u_int32_t ifindex */
-	NFQA_IFINDEX_OUTDEV,		/* u_int32_t ifindex */
-	NFQA_IFINDEX_PHYSINDEV,		/* u_int32_t ifindex */
-	NFQA_IFINDEX_PHYSOUTDEV,	/* u_int32_t ifindex */
+	NFQA_IFINDEX_INDEV,		/* __u32 ifindex */
+	NFQA_IFINDEX_OUTDEV,		/* __u32 ifindex */
+	NFQA_IFINDEX_PHYSINDEV,		/* __u32 ifindex */
+	NFQA_IFINDEX_PHYSOUTDEV,	/* __u32 ifindex */
 	NFQA_HWADDR,			/* nfqnl_msg_packet_hw */
 	NFQA_PAYLOAD,			/* opaque data payload */
 
@@ -61,8 +61,8 @@ enum nfqnl_msg_config_cmds {
 };
 
 struct nfqnl_msg_config_cmd {
-	u_int8_t	command;	/* nfqnl_msg_config_cmds */
-	u_int8_t	_pad;
+	__u8	command;	/* nfqnl_msg_config_cmds */
+	__u8	_pad;
 	__be16		pf;		/* AF_xxx for PF_[UN]BIND */
 };
 
@@ -74,7 +74,7 @@ enum nfqnl_config_mode {
 
 struct nfqnl_msg_config_params {
 	__be32		copy_range;
-	u_int8_t	copy_mode;	/* enum nfqnl_config_mode */
+	__u8	copy_mode;	/* enum nfqnl_config_mode */
 } __attribute__ ((packed));
 
 
@@ -82,7 +82,7 @@ enum nfqnl_attr_config {
 	NFQA_CFG_UNSPEC,
 	NFQA_CFG_CMD,			/* nfqnl_msg_config_cmd */
 	NFQA_CFG_PARAMS,		/* nfqnl_msg_config_params */
-	NFQA_CFG_QUEUE_MAXLEN,		/* u_int32_t */
+	NFQA_CFG_QUEUE_MAXLEN,		/* __u32 */
 	__NFQA_CFG_MAX
 };
 #define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index c7ee8744d26b..33fd9c949d80 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -1,6 +1,8 @@
 #ifndef _X_TABLES_H
 #define _X_TABLES_H
 
+#include <linux/types.h>
+
 #define XT_FUNCTION_MAXNAMELEN 30
 #define XT_TABLE_MAXNAMELEN 32
 
@@ -8,22 +10,22 @@ struct xt_entry_match
 {
 	union {
 		struct {
-			u_int16_t match_size;
+			__u16 match_size;
 
 			/* Used by userspace */
 			char name[XT_FUNCTION_MAXNAMELEN-1];
 
-			u_int8_t revision;
+			__u8 revision;
 		} user;
 		struct {
-			u_int16_t match_size;
+			__u16 match_size;
 
 			/* Used inside the kernel */
 			struct xt_match *match;
 		} kernel;
 
 		/* Total length */
-		u_int16_t match_size;
+		__u16 match_size;
 	} u;
 
 	unsigned char data[0];
@@ -33,22 +35,22 @@ struct xt_entry_target
 {
 	union {
 		struct {
-			u_int16_t target_size;
+			__u16 target_size;
 
 			/* Used by userspace */
 			char name[XT_FUNCTION_MAXNAMELEN-1];
 
-			u_int8_t revision;
+			__u8 revision;
 		} user;
 		struct {
-			u_int16_t target_size;
+			__u16 target_size;
 
 			/* Used inside the kernel */
 			struct xt_target *target;
 		} kernel;
 
 		/* Total length */
-		u_int16_t target_size;
+		__u16 target_size;
 	} u;
 
 	unsigned char data[0];
@@ -74,7 +76,7 @@ struct xt_get_revision
 {
 	char name[XT_FUNCTION_MAXNAMELEN-1];
 
-	u_int8_t revision;
+	__u8 revision;
 };
 
 /* CONTINUE verdict for targets */
@@ -90,10 +92,10 @@ struct xt_get_revision
  */
 struct _xt_align
 {
-	u_int8_t u8;
-	u_int16_t u16;
-	u_int32_t u32;
-	u_int64_t u64;
+	__u8 u8;
+	__u16 u16;
+	__u32 u32;
+	__u64 u64;
 };
 
 #define XT_ALIGN(s) (((s) + (__alignof__(struct _xt_align)-1)) 	\
@@ -109,7 +111,7 @@ struct _xt_align
 
 struct xt_counters
 {
-	u_int64_t pcnt, bcnt;			/* Packet and byte counters */
+	__u64 pcnt, bcnt;			/* Packet and byte counters */
 };
 
 /* The argument to IPT_SO_ADD_COUNTERS. */
diff --git a/include/linux/netfilter/xt_CLASSIFY.h b/include/linux/netfilter/xt_CLASSIFY.h
index 58111355255d..a813bf14dd63 100644
--- a/include/linux/netfilter/xt_CLASSIFY.h
+++ b/include/linux/netfilter/xt_CLASSIFY.h
@@ -1,8 +1,10 @@
 #ifndef _XT_CLASSIFY_H
 #define _XT_CLASSIFY_H
 
+#include <linux/types.h>
+
 struct xt_classify_target_info {
-	u_int32_t priority;
+	__u32 priority;
 };
 
 #endif /*_XT_CLASSIFY_H */
diff --git a/include/linux/netfilter/xt_CONNMARK.h b/include/linux/netfilter/xt_CONNMARK.h
index 4e58ba43c289..7635c8ffdadb 100644
--- a/include/linux/netfilter/xt_CONNMARK.h
+++ b/include/linux/netfilter/xt_CONNMARK.h
@@ -1,6 +1,8 @@
 #ifndef _XT_CONNMARK_H_target
 #define _XT_CONNMARK_H_target
 
+#include <linux/types.h>
+
 /* Copyright (C) 2002,2004 MARA Systems AB <http://www.marasystems.com>
  * by Henrik Nordstrom <hno@marasystems.com>
  *
@@ -19,12 +21,12 @@ enum {
 struct xt_connmark_target_info {
 	unsigned long mark;
 	unsigned long mask;
-	u_int8_t mode;
+	__u8 mode;
 };
 
 struct xt_connmark_tginfo1 {
-	u_int32_t ctmark, ctmask, nfmask;
-	u_int8_t mode;
+	__u32 ctmark, ctmask, nfmask;
+	__u8 mode;
 };
 
 #endif /*_XT_CONNMARK_H_target*/
diff --git a/include/linux/netfilter/xt_CONNSECMARK.h b/include/linux/netfilter/xt_CONNSECMARK.h
index c6bd75469ba2..b973ff80fa1e 100644
--- a/include/linux/netfilter/xt_CONNSECMARK.h
+++ b/include/linux/netfilter/xt_CONNSECMARK.h
@@ -1,13 +1,15 @@
 #ifndef _XT_CONNSECMARK_H_target
 #define _XT_CONNSECMARK_H_target
 
+#include <linux/types.h>
+
 enum {
 	CONNSECMARK_SAVE = 1,
 	CONNSECMARK_RESTORE,
 };
 
 struct xt_connsecmark_target_info {
-	u_int8_t mode;
+	__u8 mode;
 };
 
 #endif /*_XT_CONNSECMARK_H_target */
diff --git a/include/linux/netfilter/xt_DSCP.h b/include/linux/netfilter/xt_DSCP.h
index 14da1968e2c6..648e0b3bed29 100644
--- a/include/linux/netfilter/xt_DSCP.h
+++ b/include/linux/netfilter/xt_DSCP.h
@@ -11,15 +11,16 @@
 #ifndef _XT_DSCP_TARGET_H
 #define _XT_DSCP_TARGET_H
 #include <linux/netfilter/xt_dscp.h>
+#include <linux/types.h>
 
 /* target info */
 struct xt_DSCP_info {
-	u_int8_t dscp;
+	__u8 dscp;
 };
 
 struct xt_tos_target_info {
-	u_int8_t tos_value;
-	u_int8_t tos_mask;
+	__u8 tos_value;
+	__u8 tos_mask;
 };
 
 #endif /* _XT_DSCP_TARGET_H */
diff --git a/include/linux/netfilter/xt_MARK.h b/include/linux/netfilter/xt_MARK.h
index 778b278fd9f2..028304bcc0b1 100644
--- a/include/linux/netfilter/xt_MARK.h
+++ b/include/linux/netfilter/xt_MARK.h
@@ -1,6 +1,8 @@
 #ifndef _XT_MARK_H_target
 #define _XT_MARK_H_target
 
+#include <linux/types.h>
+
 /* Version 0 */
 struct xt_mark_target_info {
 	unsigned long mark;
@@ -15,11 +17,11 @@ enum {
 
 struct xt_mark_target_info_v1 {
 	unsigned long mark;
-	u_int8_t mode;
+	__u8 mode;
 };
 
 struct xt_mark_tginfo2 {
-	u_int32_t mark, mask;
+	__u32 mark, mask;
 };
 
 #endif /*_XT_MARK_H_target */
diff --git a/include/linux/netfilter/xt_NFLOG.h b/include/linux/netfilter/xt_NFLOG.h
index cdcd0ed58f7a..eaac7b5226e9 100644
--- a/include/linux/netfilter/xt_NFLOG.h
+++ b/include/linux/netfilter/xt_NFLOG.h
@@ -1,17 +1,19 @@
 #ifndef _XT_NFLOG_TARGET
 #define _XT_NFLOG_TARGET
 
+#include <linux/types.h>
+
 #define XT_NFLOG_DEFAULT_GROUP		0x1
 #define XT_NFLOG_DEFAULT_THRESHOLD	1
 
 #define XT_NFLOG_MASK			0x0
 
 struct xt_nflog_info {
-	u_int32_t	len;
-	u_int16_t	group;
-	u_int16_t	threshold;
-	u_int16_t	flags;
-	u_int16_t	pad;
+	__u32	len;
+	__u16	group;
+	__u16	threshold;
+	__u16	flags;
+	__u16	pad;
 	char		prefix[64];
 };
 
diff --git a/include/linux/netfilter/xt_NFQUEUE.h b/include/linux/netfilter/xt_NFQUEUE.h
index 9a9af79f74d2..982a89f78272 100644
--- a/include/linux/netfilter/xt_NFQUEUE.h
+++ b/include/linux/netfilter/xt_NFQUEUE.h
@@ -8,9 +8,11 @@
 #ifndef _XT_NFQ_TARGET_H
 #define _XT_NFQ_TARGET_H
 
+#include <linux/types.h>
+
 /* target info */
 struct xt_NFQ_info {
-	u_int16_t queuenum;
+	__u16 queuenum;
 };
 
 #endif /* _XT_NFQ_TARGET_H */
diff --git a/include/linux/netfilter/xt_RATEEST.h b/include/linux/netfilter/xt_RATEEST.h
index f79e3133cbea..6605e20ad8cf 100644
--- a/include/linux/netfilter/xt_RATEEST.h
+++ b/include/linux/netfilter/xt_RATEEST.h
@@ -1,10 +1,12 @@
 #ifndef _XT_RATEEST_TARGET_H
 #define _XT_RATEEST_TARGET_H
 
+#include <linux/types.h>
+
 struct xt_rateest_target_info {
 	char			name[IFNAMSIZ];
-	int8_t			interval;
-	u_int8_t		ewma_log;
+	__s8			interval;
+	__u8		ewma_log;
 
 	/* Used internally by the kernel */
 	struct xt_rateest	*est __attribute__((aligned(8)));
diff --git a/include/linux/netfilter/xt_SECMARK.h b/include/linux/netfilter/xt_SECMARK.h
index c53fbffa997d..6fcd3448b186 100644
--- a/include/linux/netfilter/xt_SECMARK.h
+++ b/include/linux/netfilter/xt_SECMARK.h
@@ -1,6 +1,8 @@
 #ifndef _XT_SECMARK_H_target
 #define _XT_SECMARK_H_target
 
+#include <linux/types.h>
+
 /*
  * This is intended for use by various security subsystems (but not
  * at the same time).
@@ -12,12 +14,12 @@
 #define SECMARK_SELCTX_MAX	256
 
 struct xt_secmark_target_selinux_info {
-	u_int32_t selsid;
+	__u32 selsid;
 	char selctx[SECMARK_SELCTX_MAX];
 };
 
 struct xt_secmark_target_info {
-	u_int8_t mode;
+	__u8 mode;
 	union {
 		struct xt_secmark_target_selinux_info sel;
 	} u;
diff --git a/include/linux/netfilter/xt_TCPMSS.h b/include/linux/netfilter/xt_TCPMSS.h
index 53a292cd47f3..9a6960afc134 100644
--- a/include/linux/netfilter/xt_TCPMSS.h
+++ b/include/linux/netfilter/xt_TCPMSS.h
@@ -1,8 +1,10 @@
 #ifndef _XT_TCPMSS_H
 #define _XT_TCPMSS_H
 
+#include <linux/types.h>
+
 struct xt_tcpmss_info {
-	u_int16_t mss;
+	__u16 mss;
 };
 
 #define XT_TCPMSS_CLAMP_PMTU 0xffff
diff --git a/include/linux/netfilter/xt_connbytes.h b/include/linux/netfilter/xt_connbytes.h
index c022c989754d..52bd6153b996 100644
--- a/include/linux/netfilter/xt_connbytes.h
+++ b/include/linux/netfilter/xt_connbytes.h
@@ -1,6 +1,8 @@
 #ifndef _XT_CONNBYTES_H
 #define _XT_CONNBYTES_H
 
+#include <linux/types.h>
+
 enum xt_connbytes_what {
 	XT_CONNBYTES_PKTS,
 	XT_CONNBYTES_BYTES,
@@ -19,7 +21,7 @@ struct xt_connbytes_info
 		aligned_u64 from;	/* count to be matched */
 		aligned_u64 to;		/* count to be matched */
 	} count;
-	u_int8_t what;		/* ipt_connbytes_what */
-	u_int8_t direction;	/* ipt_connbytes_direction */
+	__u8 what;		/* ipt_connbytes_what */
+	__u8 direction;	/* ipt_connbytes_direction */
 };
 #endif
diff --git a/include/linux/netfilter/xt_connmark.h b/include/linux/netfilter/xt_connmark.h
index 359ef86918dc..571e266d004c 100644
--- a/include/linux/netfilter/xt_connmark.h
+++ b/include/linux/netfilter/xt_connmark.h
@@ -1,6 +1,8 @@
 #ifndef _XT_CONNMARK_H
 #define _XT_CONNMARK_H
 
+#include <linux/types.h>
+
 /* Copyright (C) 2002,2004 MARA Systems AB <http://www.marasystems.com>
  * by Henrik Nordstrom <hno@marasystems.com>
  *
@@ -12,12 +14,12 @@
 
 struct xt_connmark_info {
 	unsigned long mark, mask;
-	u_int8_t invert;
+	__u8 invert;
 };
 
 struct xt_connmark_mtinfo1 {
-	u_int32_t mark, mask;
-	u_int8_t invert;
+	__u32 mark, mask;
+	__u8 invert;
 };
 
 #endif /*_XT_CONNMARK_H*/
diff --git a/include/linux/netfilter/xt_conntrack.h b/include/linux/netfilter/xt_conntrack.h
index 8f5345275393..3430c7751948 100644
--- a/include/linux/netfilter/xt_conntrack.h
+++ b/include/linux/netfilter/xt_conntrack.h
@@ -63,9 +63,9 @@ struct xt_conntrack_info
 	unsigned long expires_min, expires_max;
 
 	/* Flags word */
-	u_int8_t flags;
+	__u8 flags;
 	/* Inverse flags */
-	u_int8_t invflags;
+	__u8 invflags;
 };
 
 struct xt_conntrack_mtinfo1 {
@@ -73,12 +73,12 @@ struct xt_conntrack_mtinfo1 {
 	union nf_inet_addr origdst_addr, origdst_mask;
 	union nf_inet_addr replsrc_addr, replsrc_mask;
 	union nf_inet_addr repldst_addr, repldst_mask;
-	u_int32_t expires_min, expires_max;
-	u_int16_t l4proto;
+	__u32 expires_min, expires_max;
+	__u16 l4proto;
 	__be16 origsrc_port, origdst_port;
 	__be16 replsrc_port, repldst_port;
-	u_int16_t match_flags, invert_flags;
-	u_int8_t state_mask, status_mask;
+	__u16 match_flags, invert_flags;
+	__u8 state_mask, status_mask;
 };
 
 #endif /*_XT_CONNTRACK_H*/
diff --git a/include/linux/netfilter/xt_dccp.h b/include/linux/netfilter/xt_dccp.h
index e0221b9d32cb..a579e1b6f040 100644
--- a/include/linux/netfilter/xt_dccp.h
+++ b/include/linux/netfilter/xt_dccp.h
@@ -1,6 +1,8 @@
 #ifndef _XT_DCCP_H_
 #define _XT_DCCP_H_
 
+#include <linux/types.h>
+
 #define XT_DCCP_SRC_PORTS	        0x01
 #define XT_DCCP_DEST_PORTS	        0x02
 #define XT_DCCP_TYPE			0x04
@@ -9,14 +11,14 @@
 #define XT_DCCP_VALID_FLAGS		0x0f
 
 struct xt_dccp_info {
-	u_int16_t dpts[2];  /* Min, Max */
-	u_int16_t spts[2];  /* Min, Max */
+	__u16 dpts[2];  /* Min, Max */
+	__u16 spts[2];  /* Min, Max */
 
-	u_int16_t flags;
-	u_int16_t invflags;
+	__u16 flags;
+	__u16 invflags;
 
-	u_int16_t typemask;
-	u_int8_t option;
+	__u16 typemask;
+	__u8 option;
 };
 
 #endif /* _XT_DCCP_H_ */
diff --git a/include/linux/netfilter/xt_dscp.h b/include/linux/netfilter/xt_dscp.h
index f49bc1a648dc..15f8932ad5ce 100644
--- a/include/linux/netfilter/xt_dscp.h
+++ b/include/linux/netfilter/xt_dscp.h
@@ -10,20 +10,22 @@
 #ifndef _XT_DSCP_H
 #define _XT_DSCP_H
 
+#include <linux/types.h>
+
 #define XT_DSCP_MASK	0xfc	/* 11111100 */
 #define XT_DSCP_SHIFT	2
 #define XT_DSCP_MAX	0x3f	/* 00111111 */
 
 /* match info */
 struct xt_dscp_info {
-	u_int8_t dscp;
-	u_int8_t invert;
+	__u8 dscp;
+	__u8 invert;
 };
 
 struct xt_tos_match_info {
-	u_int8_t tos_mask;
-	u_int8_t tos_value;
-	u_int8_t invert;
+	__u8 tos_mask;
+	__u8 tos_value;
+	__u8 invert;
 };
 
 #endif /* _XT_DSCP_H */
diff --git a/include/linux/netfilter/xt_esp.h b/include/linux/netfilter/xt_esp.h
index 9380fb1c27da..ef6fa4747d0a 100644
--- a/include/linux/netfilter/xt_esp.h
+++ b/include/linux/netfilter/xt_esp.h
@@ -1,10 +1,12 @@
 #ifndef _XT_ESP_H
 #define _XT_ESP_H
 
+#include <linux/types.h>
+
 struct xt_esp
 {
-	u_int32_t spis[2];	/* Security Parameter Index */
-	u_int8_t  invflags;	/* Inverse flags */
+	__u32 spis[2];	/* Security Parameter Index */
+	__u8  invflags;	/* Inverse flags */
 };
 
 /* Values for "invflags" field in struct xt_esp. */
diff --git a/include/linux/netfilter/xt_hashlimit.h b/include/linux/netfilter/xt_hashlimit.h
index 51b18d83b477..b1925b5925e9 100644
--- a/include/linux/netfilter/xt_hashlimit.h
+++ b/include/linux/netfilter/xt_hashlimit.h
@@ -1,6 +1,8 @@
 #ifndef _XT_HASHLIMIT_H
 #define _XT_HASHLIMIT_H
 
+#include <linux/types.h>
+
 /* timings are in milliseconds. */
 #define XT_HASHLIMIT_SCALE 10000
 /* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
@@ -18,15 +20,15 @@ enum {
 };
 
 struct hashlimit_cfg {
-	u_int32_t mode;	  /* bitmask of XT_HASHLIMIT_HASH_* */
-	u_int32_t avg;    /* Average secs between packets * scale */
-	u_int32_t burst;  /* Period multiplier for upper limit. */
+	__u32 mode;	  /* bitmask of XT_HASHLIMIT_HASH_* */
+	__u32 avg;    /* Average secs between packets * scale */
+	__u32 burst;  /* Period multiplier for upper limit. */
 
 	/* user specified */
-	u_int32_t size;		/* how many buckets */
-	u_int32_t max;		/* max number of entries */
-	u_int32_t gc_interval;	/* gc interval */
-	u_int32_t expire;	/* when do entries expire? */
+	__u32 size;		/* how many buckets */
+	__u32 max;		/* max number of entries */
+	__u32 gc_interval;	/* gc interval */
+	__u32 expire;	/* when do entries expire? */
 };
 
 struct xt_hashlimit_info {
@@ -42,17 +44,17 @@ struct xt_hashlimit_info {
 };
 
 struct hashlimit_cfg1 {
-	u_int32_t mode;	  /* bitmask of XT_HASHLIMIT_HASH_* */
-	u_int32_t avg;    /* Average secs between packets * scale */
-	u_int32_t burst;  /* Period multiplier for upper limit. */
+	__u32 mode;	  /* bitmask of XT_HASHLIMIT_HASH_* */
+	__u32 avg;    /* Average secs between packets * scale */
+	__u32 burst;  /* Period multiplier for upper limit. */
 
 	/* user specified */
-	u_int32_t size;		/* how many buckets */
-	u_int32_t max;		/* max number of entries */
-	u_int32_t gc_interval;	/* gc interval */
-	u_int32_t expire;	/* when do entries expire? */
+	__u32 size;		/* how many buckets */
+	__u32 max;		/* max number of entries */
+	__u32 gc_interval;	/* gc interval */
+	__u32 expire;	/* when do entries expire? */
 
-	u_int8_t srcmask, dstmask;
+	__u8 srcmask, dstmask;
 };
 
 struct xt_hashlimit_mtinfo1 {
diff --git a/include/linux/netfilter/xt_iprange.h b/include/linux/netfilter/xt_iprange.h
index a4299c7d3680..c1f21a779a45 100644
--- a/include/linux/netfilter/xt_iprange.h
+++ b/include/linux/netfilter/xt_iprange.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_NETFILTER_XT_IPRANGE_H
 #define _LINUX_NETFILTER_XT_IPRANGE_H 1
 
+#include <linux/types.h>
+
 enum {
 	IPRANGE_SRC     = 1 << 0,	/* match source IP address */
 	IPRANGE_DST     = 1 << 1,	/* match destination IP address */
@@ -11,7 +13,7 @@ enum {
 struct xt_iprange_mtinfo {
 	union nf_inet_addr src_min, src_max;
 	union nf_inet_addr dst_min, dst_max;
-	u_int8_t flags;
+	__u8 flags;
 };
 
 #endif /* _LINUX_NETFILTER_XT_IPRANGE_H */
diff --git a/include/linux/netfilter/xt_length.h b/include/linux/netfilter/xt_length.h
index 7c2b439f73fe..b82ed7c4b1e0 100644
--- a/include/linux/netfilter/xt_length.h
+++ b/include/linux/netfilter/xt_length.h
@@ -1,9 +1,11 @@
 #ifndef _XT_LENGTH_H
 #define _XT_LENGTH_H
 
+#include <linux/types.h>
+
 struct xt_length_info {
-    u_int16_t	min, max;
-    u_int8_t	invert;
+    __u16	min, max;
+    __u8	invert;
 };
 
 #endif /*_XT_LENGTH_H*/
diff --git a/include/linux/netfilter/xt_limit.h b/include/linux/netfilter/xt_limit.h
index b3ce65375ecb..190e98b1f7c9 100644
--- a/include/linux/netfilter/xt_limit.h
+++ b/include/linux/netfilter/xt_limit.h
@@ -1,19 +1,21 @@
 #ifndef _XT_RATE_H
 #define _XT_RATE_H
 
+#include <linux/types.h>
+
 /* timings are in milliseconds. */
 #define XT_LIMIT_SCALE 10000
 
 /* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
    seconds, or one every 59 hours. */
 struct xt_rateinfo {
-	u_int32_t avg;    /* Average secs between packets * scale */
-	u_int32_t burst;  /* Period multiplier for upper limit. */
+	__u32 avg;    /* Average secs between packets * scale */
+	__u32 burst;  /* Period multiplier for upper limit. */
 
 	/* Used internally by the kernel */
 	unsigned long prev;
-	u_int32_t credit;
-	u_int32_t credit_cap, cost;
+	__u32 credit;
+	__u32 credit_cap, cost;
 
 	/* Ugly, ugly fucker. */
 	struct xt_rateinfo *master;
diff --git a/include/linux/netfilter/xt_mark.h b/include/linux/netfilter/xt_mark.h
index fae74bc3f34e..6fa460a3cc29 100644
--- a/include/linux/netfilter/xt_mark.h
+++ b/include/linux/netfilter/xt_mark.h
@@ -1,14 +1,16 @@
 #ifndef _XT_MARK_H
 #define _XT_MARK_H
 
+#include <linux/types.h>
+
 struct xt_mark_info {
     unsigned long mark, mask;
-    u_int8_t invert;
+    __u8 invert;
 };
 
 struct xt_mark_mtinfo1 {
-	u_int32_t mark, mask;
-	u_int8_t invert;
+	__u32 mark, mask;
+	__u8 invert;
 };
 
 #endif /*_XT_MARK_H*/
diff --git a/include/linux/netfilter/xt_multiport.h b/include/linux/netfilter/xt_multiport.h
index d49ee4183710..185db499fcbc 100644
--- a/include/linux/netfilter/xt_multiport.h
+++ b/include/linux/netfilter/xt_multiport.h
@@ -1,6 +1,8 @@
 #ifndef _XT_MULTIPORT_H
 #define _XT_MULTIPORT_H
 
+#include <linux/types.h>
+
 enum xt_multiport_flags
 {
 	XT_MULTIPORT_SOURCE,
@@ -13,18 +15,18 @@ enum xt_multiport_flags
 /* Must fit inside union xt_matchinfo: 16 bytes */
 struct xt_multiport
 {
-	u_int8_t flags;				/* Type of comparison */
-	u_int8_t count;				/* Number of ports */
-	u_int16_t ports[XT_MULTI_PORTS];	/* Ports */
+	__u8 flags;				/* Type of comparison */
+	__u8 count;				/* Number of ports */
+	__u16 ports[XT_MULTI_PORTS];	/* Ports */
 };
 
 struct xt_multiport_v1
 {
-	u_int8_t flags;				/* Type of comparison */
-	u_int8_t count;				/* Number of ports */
-	u_int16_t ports[XT_MULTI_PORTS];	/* Ports */
-	u_int8_t pflags[XT_MULTI_PORTS];	/* Port flags */
-	u_int8_t invert;			/* Invert flag */
+	__u8 flags;				/* Type of comparison */
+	__u8 count;				/* Number of ports */
+	__u16 ports[XT_MULTI_PORTS];	/* Ports */
+	__u8 pflags[XT_MULTI_PORTS];	/* Port flags */
+	__u8 invert;			/* Invert flag */
 };
 
 #endif /*_XT_MULTIPORT_H*/
diff --git a/include/linux/netfilter/xt_owner.h b/include/linux/netfilter/xt_owner.h
index c84e52cfe415..2081761714b5 100644
--- a/include/linux/netfilter/xt_owner.h
+++ b/include/linux/netfilter/xt_owner.h
@@ -1,6 +1,8 @@
 #ifndef _XT_OWNER_MATCH_H
 #define _XT_OWNER_MATCH_H
 
+#include <linux/types.h>
+
 enum {
 	XT_OWNER_UID    = 1 << 0,
 	XT_OWNER_GID    = 1 << 1,
@@ -8,9 +10,9 @@ enum {
 };
 
 struct xt_owner_match_info {
-	u_int32_t uid_min, uid_max;
-	u_int32_t gid_min, gid_max;
-	u_int8_t match, invert;
+	__u32 uid_min, uid_max;
+	__u32 gid_min, gid_max;
+	__u8 match, invert;
 };
 
 #endif /* _XT_OWNER_MATCH_H */
diff --git a/include/linux/netfilter/xt_physdev.h b/include/linux/netfilter/xt_physdev.h
index 25a7a1815b5b..8555e399886d 100644
--- a/include/linux/netfilter/xt_physdev.h
+++ b/include/linux/netfilter/xt_physdev.h
@@ -1,6 +1,8 @@
 #ifndef _XT_PHYSDEV_H
 #define _XT_PHYSDEV_H
 
+#include <linux/types.h>
+
 #ifdef __KERNEL__
 #include <linux/if.h>
 #endif
@@ -17,8 +19,8 @@ struct xt_physdev_info {
 	char in_mask[IFNAMSIZ];
 	char physoutdev[IFNAMSIZ];
 	char out_mask[IFNAMSIZ];
-	u_int8_t invert;
-	u_int8_t bitmask;
+	__u8 invert;
+	__u8 bitmask;
 };
 
 #endif /*_XT_PHYSDEV_H*/
diff --git a/include/linux/netfilter/xt_policy.h b/include/linux/netfilter/xt_policy.h
index 053d8cc65464..7bb64e7c853d 100644
--- a/include/linux/netfilter/xt_policy.h
+++ b/include/linux/netfilter/xt_policy.h
@@ -1,6 +1,8 @@
 #ifndef _XT_POLICY_H
 #define _XT_POLICY_H
 
+#include <linux/types.h>
+
 #define XT_POLICY_MAX_ELEM	4
 
 enum xt_policy_flags
@@ -19,7 +21,7 @@ enum xt_policy_modes
 
 struct xt_policy_spec
 {
-	u_int8_t	saddr:1,
+	__u8	saddr:1,
 			daddr:1,
 			proto:1,
 			mode:1,
@@ -55,9 +57,9 @@ struct xt_policy_elem
 #endif
 	};
 	__be32			spi;
-	u_int32_t		reqid;
-	u_int8_t		proto;
-	u_int8_t		mode;
+	__u32		reqid;
+	__u8		proto;
+	__u8		mode;
 
 	struct xt_policy_spec	match;
 	struct xt_policy_spec	invert;
@@ -66,8 +68,8 @@ struct xt_policy_elem
 struct xt_policy_info
 {
 	struct xt_policy_elem pol[XT_POLICY_MAX_ELEM];
-	u_int16_t flags;
-	u_int16_t len;
+	__u16 flags;
+	__u16 len;
 };
 
 #endif /* _XT_POLICY_H */
diff --git a/include/linux/netfilter/xt_rateest.h b/include/linux/netfilter/xt_rateest.h
index 2010cb74250f..d40a6196842a 100644
--- a/include/linux/netfilter/xt_rateest.h
+++ b/include/linux/netfilter/xt_rateest.h
@@ -1,6 +1,8 @@
 #ifndef _XT_RATEEST_MATCH_H
 #define _XT_RATEEST_MATCH_H
 
+#include <linux/types.h>
+
 enum xt_rateest_match_flags {
 	XT_RATEEST_MATCH_INVERT	= 1<<0,
 	XT_RATEEST_MATCH_ABS	= 1<<1,
@@ -20,12 +22,12 @@ enum xt_rateest_match_mode {
 struct xt_rateest_match_info {
 	char			name1[IFNAMSIZ];
 	char			name2[IFNAMSIZ];
-	u_int16_t		flags;
-	u_int16_t		mode;
-	u_int32_t		bps1;
-	u_int32_t		pps1;
-	u_int32_t		bps2;
-	u_int32_t		pps2;
+	__u16		flags;
+	__u16		mode;
+	__u32		bps1;
+	__u32		pps1;
+	__u32		bps2;
+	__u32		pps2;
 
 	/* Used internally by the kernel */
 	struct xt_rateest	*est1 __attribute__((aligned(8)));
diff --git a/include/linux/netfilter/xt_realm.h b/include/linux/netfilter/xt_realm.h
index 220e87245716..d4a82ee56a02 100644
--- a/include/linux/netfilter/xt_realm.h
+++ b/include/linux/netfilter/xt_realm.h
@@ -1,10 +1,12 @@
 #ifndef _XT_REALM_H
 #define _XT_REALM_H
 
+#include <linux/types.h>
+
 struct xt_realm_info {
-	u_int32_t id;
-	u_int32_t mask;
-	u_int8_t invert;
+	__u32 id;
+	__u32 mask;
+	__u8 invert;
 };
 
 #endif /* _XT_REALM_H */
diff --git a/include/linux/netfilter/xt_recent.h b/include/linux/netfilter/xt_recent.h
index 5cfeb81c6794..d2c276609925 100644
--- a/include/linux/netfilter/xt_recent.h
+++ b/include/linux/netfilter/xt_recent.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_NETFILTER_XT_RECENT_H
 #define _LINUX_NETFILTER_XT_RECENT_H 1
 
+#include <linux/types.h>
+
 enum {
 	XT_RECENT_CHECK    = 1 << 0,
 	XT_RECENT_SET      = 1 << 1,
@@ -15,12 +17,12 @@ enum {
 };
 
 struct xt_recent_mtinfo {
-	u_int32_t seconds;
-	u_int32_t hit_count;
-	u_int8_t check_set;
-	u_int8_t invert;
+	__u32 seconds;
+	__u32 hit_count;
+	__u8 check_set;
+	__u8 invert;
 	char name[XT_RECENT_NAME_LEN];
-	u_int8_t side;
+	__u8 side;
 };
 
 #endif /* _LINUX_NETFILTER_XT_RECENT_H */
diff --git a/include/linux/netfilter/xt_sctp.h b/include/linux/netfilter/xt_sctp.h
index 32000ba6ecef..29287be696a2 100644
--- a/include/linux/netfilter/xt_sctp.h
+++ b/include/linux/netfilter/xt_sctp.h
@@ -1,6 +1,8 @@
 #ifndef _XT_SCTP_H_
 #define _XT_SCTP_H_
 
+#include <linux/types.h>
+
 #define XT_SCTP_SRC_PORTS	        0x01
 #define XT_SCTP_DEST_PORTS	        0x02
 #define XT_SCTP_CHUNK_TYPES		0x04
@@ -8,49 +10,49 @@
 #define XT_SCTP_VALID_FLAGS		0x07
 
 struct xt_sctp_flag_info {
-	u_int8_t chunktype;
-	u_int8_t flag;
-	u_int8_t flag_mask;
+	__u8 chunktype;
+	__u8 flag;
+	__u8 flag_mask;
 };
 
 #define XT_NUM_SCTP_FLAGS	4
 
 struct xt_sctp_info {
-	u_int16_t dpts[2];  /* Min, Max */
-	u_int16_t spts[2];  /* Min, Max */
+	__u16 dpts[2];  /* Min, Max */
+	__u16 spts[2];  /* Min, Max */
 
-	u_int32_t chunkmap[256 / sizeof (u_int32_t)];  /* Bit mask of chunks to be matched according to RFC 2960 */
+	__u32 chunkmap[256 / sizeof (__u32)];  /* Bit mask of chunks to be matched according to RFC 2960 */
 
 #define SCTP_CHUNK_MATCH_ANY   0x01  /* Match if any of the chunk types are present */
 #define SCTP_CHUNK_MATCH_ALL   0x02  /* Match if all of the chunk types are present */
 #define SCTP_CHUNK_MATCH_ONLY  0x04  /* Match if these are the only chunk types present */
 
-	u_int32_t chunk_match_type;
+	__u32 chunk_match_type;
 	struct xt_sctp_flag_info flag_info[XT_NUM_SCTP_FLAGS];
 	int flag_count;
 
-	u_int32_t flags;
-	u_int32_t invflags;
+	__u32 flags;
+	__u32 invflags;
 };
 
 #define bytes(type) (sizeof(type) * 8)
 
 #define SCTP_CHUNKMAP_SET(chunkmap, type) 		\
 	do { 						\
-		(chunkmap)[type / bytes(u_int32_t)] |= 	\
-			1 << (type % bytes(u_int32_t));	\
+		(chunkmap)[type / bytes(__u32)] |= 	\
+			1 << (type % bytes(__u32));	\
 	} while (0)
 
 #define SCTP_CHUNKMAP_CLEAR(chunkmap, type)		 	\
 	do {							\
-		(chunkmap)[type / bytes(u_int32_t)] &= 		\
-			~(1 << (type % bytes(u_int32_t)));	\
+		(chunkmap)[type / bytes(__u32)] &= 		\
+			~(1 << (type % bytes(__u32)));	\
 	} while (0)
 
 #define SCTP_CHUNKMAP_IS_SET(chunkmap, type) 			\
 ({								\
-	((chunkmap)[type / bytes (u_int32_t)] & 		\
-		(1 << (type % bytes (u_int32_t)))) ? 1: 0;	\
+	((chunkmap)[type / bytes (__u32)] & 		\
+		(1 << (type % bytes (__u32)))) ? 1: 0;	\
 })
 
 #define SCTP_CHUNKMAP_RESET(chunkmap) \
@@ -65,7 +67,7 @@ struct xt_sctp_info {
 #define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) \
 	__sctp_chunkmap_is_clear((chunkmap), ARRAY_SIZE(chunkmap))
 static inline bool
-__sctp_chunkmap_is_clear(const u_int32_t *chunkmap, unsigned int n)
+__sctp_chunkmap_is_clear(const __u32 *chunkmap, unsigned int n)
 {
 	unsigned int i;
 	for (i = 0; i < n; ++i)
@@ -77,7 +79,7 @@ __sctp_chunkmap_is_clear(const u_int32_t *chunkmap, unsigned int n)
 #define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) \
 	__sctp_chunkmap_is_all_set((chunkmap), ARRAY_SIZE(chunkmap))
 static inline bool
-__sctp_chunkmap_is_all_set(const u_int32_t *chunkmap, unsigned int n)
+__sctp_chunkmap_is_all_set(const __u32 *chunkmap, unsigned int n)
 {
 	unsigned int i;
 	for (i = 0; i < n; ++i)
diff --git a/include/linux/netfilter/xt_statistic.h b/include/linux/netfilter/xt_statistic.h
index 3d38bc975048..095f3c66f456 100644
--- a/include/linux/netfilter/xt_statistic.h
+++ b/include/linux/netfilter/xt_statistic.h
@@ -1,6 +1,8 @@
 #ifndef _XT_STATISTIC_H
 #define _XT_STATISTIC_H
 
+#include <linux/types.h>
+
 enum xt_statistic_mode {
 	XT_STATISTIC_MODE_RANDOM,
 	XT_STATISTIC_MODE_NTH,
@@ -14,17 +16,17 @@ enum xt_statistic_flags {
 #define XT_STATISTIC_MASK		0x1
 
 struct xt_statistic_info {
-	u_int16_t			mode;
-	u_int16_t			flags;
+	__u16			mode;
+	__u16			flags;
 	union {
 		struct {
-			u_int32_t	probability;
+			__u32	probability;
 		} random;
 		struct {
-			u_int32_t	every;
-			u_int32_t	packet;
+			__u32	every;
+			__u32	packet;
 			/* Used internally by the kernel */
-			u_int32_t	count;
+			__u32	count;
 		} nth;
 	} u;
 	struct xt_statistic_info	*master __attribute__((aligned(8)));
diff --git a/include/linux/netfilter/xt_string.h b/include/linux/netfilter/xt_string.h
index 8a6ba7bbef9f..ecbb95fc89ed 100644
--- a/include/linux/netfilter/xt_string.h
+++ b/include/linux/netfilter/xt_string.h
@@ -1,6 +1,8 @@
 #ifndef _XT_STRING_H
 #define _XT_STRING_H
 
+#include <linux/types.h>
+
 #define XT_STRING_MAX_PATTERN_SIZE 128
 #define XT_STRING_MAX_ALGO_NAME_SIZE 16
 
@@ -11,18 +13,18 @@ enum {
 
 struct xt_string_info
 {
-	u_int16_t from_offset;
-	u_int16_t to_offset;
+	__u16 from_offset;
+	__u16 to_offset;
 	char	  algo[XT_STRING_MAX_ALGO_NAME_SIZE];
 	char 	  pattern[XT_STRING_MAX_PATTERN_SIZE];
-	u_int8_t  patlen;
+	__u8  patlen;
 	union {
 		struct {
-			u_int8_t  invert;
+			__u8  invert;
 		} v0;
 
 		struct {
-			u_int8_t  flags;
+			__u8  flags;
 		} v1;
 	} u;
 
diff --git a/include/linux/netfilter/xt_tcpmss.h b/include/linux/netfilter/xt_tcpmss.h
index e03274c4c790..fbac56b9e667 100644
--- a/include/linux/netfilter/xt_tcpmss.h
+++ b/include/linux/netfilter/xt_tcpmss.h
@@ -1,9 +1,11 @@
 #ifndef _XT_TCPMSS_MATCH_H
 #define _XT_TCPMSS_MATCH_H
 
+#include <linux/types.h>
+
 struct xt_tcpmss_match_info {
-    u_int16_t mss_min, mss_max;
-    u_int8_t invert;
+    __u16 mss_min, mss_max;
+    __u8 invert;
 };
 
 #endif /*_XT_TCPMSS_MATCH_H*/
diff --git a/include/linux/netfilter/xt_tcpudp.h b/include/linux/netfilter/xt_tcpudp.h
index 78bc65f11adf..a490a0bc1d29 100644
--- a/include/linux/netfilter/xt_tcpudp.h
+++ b/include/linux/netfilter/xt_tcpudp.h
@@ -1,15 +1,17 @@
 #ifndef _XT_TCPUDP_H
 #define _XT_TCPUDP_H
 
+#include <linux/types.h>
+
 /* TCP matching stuff */
 struct xt_tcp
 {
-	u_int16_t spts[2];			/* Source port range. */
-	u_int16_t dpts[2];			/* Destination port range. */
-	u_int8_t option;			/* TCP Option iff non-zero*/
-	u_int8_t flg_mask;			/* TCP flags mask byte */
-	u_int8_t flg_cmp;			/* TCP flags compare byte */
-	u_int8_t invflags;			/* Inverse flags */
+	__u16 spts[2];			/* Source port range. */
+	__u16 dpts[2];			/* Destination port range. */
+	__u8 option;			/* TCP Option iff non-zero*/
+	__u8 flg_mask;			/* TCP flags mask byte */
+	__u8 flg_cmp;			/* TCP flags compare byte */
+	__u8 invflags;			/* Inverse flags */
 };
 
 /* Values for "inv" field in struct ipt_tcp. */
@@ -22,9 +24,9 @@ struct xt_tcp
 /* UDP matching stuff */
 struct xt_udp
 {
-	u_int16_t spts[2];			/* Source port range. */
-	u_int16_t dpts[2];			/* Destination port range. */
-	u_int8_t invflags;			/* Inverse flags */
+	__u16 spts[2];			/* Source port range. */
+	__u16 dpts[2];			/* Destination port range. */
+	__u8 invflags;			/* Inverse flags */
 };
 
 /* Values for "invflags" field in struct ipt_udp. */
-- 
cgit v1.2.3


From 3a471cbc081b6bf2b58a48db13d734ecd3b0d437 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 26 Feb 2009 00:51:45 +0100
Subject: remove __KERNEL_STRICT_NAMES

With the last used of non-strict names gone from the
exported header files, we can remove the old libc5
compatibility cruft from our headers and only export
strict types.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/asm-generic/statfs.h |  5 +++--
 include/linux/types.h        | 13 ++-----------
 2 files changed, 5 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/include/asm-generic/statfs.h b/include/asm-generic/statfs.h
index 6129d6802149..3b4fb3e52f0d 100644
--- a/include/asm-generic/statfs.h
+++ b/include/asm-generic/statfs.h
@@ -1,8 +1,9 @@
 #ifndef _GENERIC_STATFS_H
 #define _GENERIC_STATFS_H
 
-#ifndef __KERNEL_STRICT_NAMES
-# include <linux/types.h>
+#include <linux/types.h>
+
+#ifdef __KERNEL__
 typedef __kernel_fsid_t	fsid_t;
 #endif
 
diff --git a/include/linux/types.h b/include/linux/types.h
index fca82ed55f49..5abe354020f9 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -13,7 +13,7 @@
 
 #include <linux/posix_types.h>
 
-#ifndef __KERNEL_STRICT_NAMES
+#ifdef __KERNEL__
 
 typedef __u32 __kernel_dev_t;
 
@@ -31,7 +31,6 @@ typedef __kernel_timer_t	timer_t;
 typedef __kernel_clockid_t	clockid_t;
 typedef __kernel_mqd_t		mqd_t;
 
-#ifdef __KERNEL__
 typedef _Bool			bool;
 
 typedef __kernel_uid32_t	uid_t;
@@ -47,14 +46,6 @@ typedef __kernel_old_uid_t	old_uid_t;
 typedef __kernel_old_gid_t	old_gid_t;
 #endif /* CONFIG_UID16 */
 
-/* libc5 includes this file to define uid_t, thus uid_t can never change
- * when it is included by non-kernel code
- */
-#else
-typedef __kernel_uid_t		uid_t;
-typedef __kernel_gid_t		gid_t;
-#endif /* __KERNEL__ */
-
 #if defined(__GNUC__)
 typedef __kernel_loff_t		loff_t;
 #endif
@@ -156,7 +147,7 @@ typedef unsigned long blkcnt_t;
 #define pgoff_t unsigned long
 #endif
 
-#endif /* __KERNEL_STRICT_NAMES */
+#endif /* __KERNEL__ */
 
 /*
  * Below are truly Linux-specific types that should never collide with
-- 
cgit v1.2.3


From 8cd2c29dd5f04d91dac6ea7f8b9df4ff1b4380ee Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@linux.intel.com>
Date: Wed, 25 Feb 2009 15:22:19 -0800
Subject: compiler-gcc4: conditionalize #error on __KERNEL__

Impact: Fix for exported headers

We only want to error out on specific gcc versions if we are actually
building the kernel, so conditionalize the #if...#error on __KERNEL__.

Based on a patchset by Arnd Bergmann <arnd@arndb.de>.

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/compiler-gcc4.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 09992718f9e8..450fa597c94d 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -3,8 +3,10 @@
 #endif
 
 /* GCC 4.1.[01] miscompiles __weak */
-#if __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1
-# error Your version of gcc miscompiles the __weak directive
+#ifdef __KERNEL__
+# if __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1
+#  error Your version of gcc miscompiles the __weak directive
+# endif
 #endif
 
 #define __used			__attribute__((__used__))
-- 
cgit v1.2.3


From f9f35677d81adb0feedcd6e0e661784805c8facd Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 26 Feb 2009 09:57:27 +0100
Subject: emu101k1.h: fix duplicate include of <linux/types.h>

Impact: cleanup

The earlier patch 'make most exported headers use strict integer
types' accidentally includes <linux/types.h> both from the common and
from the kernel-only parts.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/sound/emu10k1.h | 1 -
 1 file changed, 1 deletion(-)

(limited to 'include')

diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h
index c380056ff26d..6a664c3f7c1e 100644
--- a/include/sound/emu10k1.h
+++ b/include/sound/emu10k1.h
@@ -36,7 +36,6 @@
 #include <sound/timer.h>
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
-#include <linux/types.h>
 
 #include <asm/io.h>
 
-- 
cgit v1.2.3


From d0adde574b8487ef30f69e2d08bba769e4be513f Mon Sep 17 00:00:00 2001
From: Matthew Garrett <mjg@redhat.com>
Date: Thu, 26 Mar 2009 17:49:56 +0000
Subject: Add a strictatime mount option

Add support for explicitly requesting full atime updates. This makes it
possible for kernels to default to relatime but still allow userspace to
override it.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/namespace.c        | 6 +++++-
 include/linux/fs.h    | 1 +
 include/linux/mount.h | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/fs/namespace.c b/fs/namespace.c
index 06f8e63f6cb1..d0659ec291c9 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -780,6 +780,7 @@ static void show_mnt_opts(struct seq_file *m, struct vfsmount *mnt)
 		{ MNT_NOATIME, ",noatime" },
 		{ MNT_NODIRATIME, ",nodiratime" },
 		{ MNT_RELATIME, ",relatime" },
+		{ MNT_STRICTATIME, ",strictatime" },
 		{ 0, NULL }
 	};
 	const struct proc_fs_info *fs_infop;
@@ -1932,11 +1933,14 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
 		mnt_flags |= MNT_NODIRATIME;
 	if (flags & MS_RELATIME)
 		mnt_flags |= MNT_RELATIME;
+	if (flags & MS_STRICTATIME)
+		mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME);
 	if (flags & MS_RDONLY)
 		mnt_flags |= MNT_READONLY;
 
 	flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE |
-		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT);
+		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
+		   MS_STRICTATIME);
 
 	/* ... and get the mountpoint */
 	retval = kern_path(dir_name, LOOKUP_FOLLOW, &path);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 92734c0012e6..5bc81c4a98c1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -141,6 +141,7 @@ struct inodes_stat_t {
 #define MS_RELATIME	(1<<21)	/* Update atime relative to mtime/ctime. */
 #define MS_KERNMOUNT	(1<<22) /* this is a kern_mount call */
 #define MS_I_VERSION	(1<<23) /* Update inode I_version field */
+#define MS_STRICTATIME	(1<<24) /* Always perform atime updates */
 #define MS_ACTIVE	(1<<30)
 #define MS_NOUSER	(1<<31)
 
diff --git a/include/linux/mount.h b/include/linux/mount.h
index cab2a85e2ee8..51f55f903aff 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -27,6 +27,7 @@ struct mnt_namespace;
 #define MNT_NODIRATIME	0x10
 #define MNT_RELATIME	0x20
 #define MNT_READONLY	0x40	/* does the user want this to be r/o? */
+#define MNT_STRICTATIME 0x80
 
 #define MNT_SHRINKABLE	0x100
 #define MNT_IMBALANCED_WRITE_COUNT	0x200 /* just for debugging */
-- 
cgit v1.2.3


From a1702857724fb39cb68ce581490010df99168fd0 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@avionic-design.de>
Date: Fri, 27 Mar 2009 00:12:24 -0700
Subject: net: Add support for the OpenCores 10/100 Mbps Ethernet MAC.

This patch adds a platform device driver that supports the OpenCores 10/100
Mbps Ethernet MAC.

The driver expects three resources: one IORESOURCE_MEM resource defines the
memory region for the core's memory-mapped registers while a second
IORESOURCE_MEM resource defines the network packet buffer space. The third
resource, of type IORESOURCE_IRQ, associates an interrupt with the driver.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/Kconfig  |    8 +
 drivers/net/Makefile |    1 +
 drivers/net/ethoc.c  | 1112 ++++++++++++++++++++++++++++++++++++++++++++++++++
 include/net/ethoc.h  |   22 +
 4 files changed, 1143 insertions(+)
 create mode 100644 drivers/net/ethoc.c
 create mode 100644 include/net/ethoc.h

(limited to 'include')

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index e5ffc1c606c1..f062b424704e 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -972,6 +972,14 @@ config ENC28J60_WRITEVERIFY
 	  Enable the verify after the buffer write useful for debugging purpose.
 	  If unsure, say N.
 
+config ETHOC
+	tristate "OpenCores 10/100 Mbps Ethernet MAC support"
+	depends on NET_ETHERNET
+	select MII
+	select PHYLIB
+	help
+	  Say Y here if you want to use the OpenCores 10/100 Mbps Ethernet MAC.
+
 config SMC911X
 	tristate "SMSC LAN911[5678] support"
 	select CRC32
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 758ecdf4c820..98409c9dd445 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -230,6 +230,7 @@ obj-$(CONFIG_PASEMI_MAC) += pasemi_mac_driver.o
 pasemi_mac_driver-objs := pasemi_mac.o pasemi_mac_ethtool.o
 obj-$(CONFIG_MLX4_CORE) += mlx4/
 obj-$(CONFIG_ENC28J60) += enc28j60.o
+obj-$(CONFIG_ETHOC) += ethoc.o
 
 obj-$(CONFIG_XTENSA_XT2000_SONIC) += xtsonic.o
 
diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c
new file mode 100644
index 000000000000..91a9b1a33764
--- /dev/null
+++ b/drivers/net/ethoc.c
@@ -0,0 +1,1112 @@
+/*
+ * linux/drivers/net/ethoc.c
+ *
+ * Copyright (C) 2007-2008 Avionic Design Development GmbH
+ * Copyright (C) 2008-2009 Avionic Design GmbH
+ *
+ * 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.
+ *
+ * Written by Thierry Reding <thierry.reding@avionic-design.de>
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/crc32.h>
+#include <linux/io.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <net/ethoc.h>
+
+/* register offsets */
+#define	MODER		0x00
+#define	INT_SOURCE	0x04
+#define	INT_MASK	0x08
+#define	IPGT		0x0c
+#define	IPGR1		0x10
+#define	IPGR2		0x14
+#define	PACKETLEN	0x18
+#define	COLLCONF	0x1c
+#define	TX_BD_NUM	0x20
+#define	CTRLMODER	0x24
+#define	MIIMODER	0x28
+#define	MIICOMMAND	0x2c
+#define	MIIADDRESS	0x30
+#define	MIITX_DATA	0x34
+#define	MIIRX_DATA	0x38
+#define	MIISTATUS	0x3c
+#define	MAC_ADDR0	0x40
+#define	MAC_ADDR1	0x44
+#define	ETH_HASH0	0x48
+#define	ETH_HASH1	0x4c
+#define	ETH_TXCTRL	0x50
+
+/* mode register */
+#define	MODER_RXEN	(1 <<  0) /* receive enable */
+#define	MODER_TXEN	(1 <<  1) /* transmit enable */
+#define	MODER_NOPRE	(1 <<  2) /* no preamble */
+#define	MODER_BRO	(1 <<  3) /* broadcast address */
+#define	MODER_IAM	(1 <<  4) /* individual address mode */
+#define	MODER_PRO	(1 <<  5) /* promiscuous mode */
+#define	MODER_IFG	(1 <<  6) /* interframe gap for incoming frames */
+#define	MODER_LOOP	(1 <<  7) /* loopback */
+#define	MODER_NBO	(1 <<  8) /* no back-off */
+#define	MODER_EDE	(1 <<  9) /* excess defer enable */
+#define	MODER_FULLD	(1 << 10) /* full duplex */
+#define	MODER_RESET	(1 << 11) /* FIXME: reset (undocumented) */
+#define	MODER_DCRC	(1 << 12) /* delayed CRC enable */
+#define	MODER_CRC	(1 << 13) /* CRC enable */
+#define	MODER_HUGE	(1 << 14) /* huge packets enable */
+#define	MODER_PAD	(1 << 15) /* padding enabled */
+#define	MODER_RSM	(1 << 16) /* receive small packets */
+
+/* interrupt source and mask registers */
+#define	INT_MASK_TXF	(1 << 0) /* transmit frame */
+#define	INT_MASK_TXE	(1 << 1) /* transmit error */
+#define	INT_MASK_RXF	(1 << 2) /* receive frame */
+#define	INT_MASK_RXE	(1 << 3) /* receive error */
+#define	INT_MASK_BUSY	(1 << 4)
+#define	INT_MASK_TXC	(1 << 5) /* transmit control frame */
+#define	INT_MASK_RXC	(1 << 6) /* receive control frame */
+
+#define	INT_MASK_TX	(INT_MASK_TXF | INT_MASK_TXE)
+#define	INT_MASK_RX	(INT_MASK_RXF | INT_MASK_RXE)
+
+#define	INT_MASK_ALL ( \
+		INT_MASK_TXF | INT_MASK_TXE | \
+		INT_MASK_RXF | INT_MASK_RXE | \
+		INT_MASK_TXC | INT_MASK_RXC | \
+		INT_MASK_BUSY \
+	)
+
+/* packet length register */
+#define	PACKETLEN_MIN(min)		(((min) & 0xffff) << 16)
+#define	PACKETLEN_MAX(max)		(((max) & 0xffff) <<  0)
+#define	PACKETLEN_MIN_MAX(min, max)	(PACKETLEN_MIN(min) | \
+					PACKETLEN_MAX(max))
+
+/* transmit buffer number register */
+#define	TX_BD_NUM_VAL(x)	(((x) <= 0x80) ? (x) : 0x80)
+
+/* control module mode register */
+#define	CTRLMODER_PASSALL	(1 << 0) /* pass all receive frames */
+#define	CTRLMODER_RXFLOW	(1 << 1) /* receive control flow */
+#define	CTRLMODER_TXFLOW	(1 << 2) /* transmit control flow */
+
+/* MII mode register */
+#define	MIIMODER_CLKDIV(x)	((x) & 0xfe) /* needs to be an even number */
+#define	MIIMODER_NOPRE		(1 << 8) /* no preamble */
+
+/* MII command register */
+#define	MIICOMMAND_SCAN		(1 << 0) /* scan status */
+#define	MIICOMMAND_READ		(1 << 1) /* read status */
+#define	MIICOMMAND_WRITE	(1 << 2) /* write control data */
+
+/* MII address register */
+#define	MIIADDRESS_FIAD(x)		(((x) & 0x1f) << 0)
+#define	MIIADDRESS_RGAD(x)		(((x) & 0x1f) << 8)
+#define	MIIADDRESS_ADDR(phy, reg)	(MIIADDRESS_FIAD(phy) | \
+					MIIADDRESS_RGAD(reg))
+
+/* MII transmit data register */
+#define	MIITX_DATA_VAL(x)	((x) & 0xffff)
+
+/* MII receive data register */
+#define	MIIRX_DATA_VAL(x)	((x) & 0xffff)
+
+/* MII status register */
+#define	MIISTATUS_LINKFAIL	(1 << 0)
+#define	MIISTATUS_BUSY		(1 << 1)
+#define	MIISTATUS_INVALID	(1 << 2)
+
+/* TX buffer descriptor */
+#define	TX_BD_CS		(1 <<  0) /* carrier sense lost */
+#define	TX_BD_DF		(1 <<  1) /* defer indication */
+#define	TX_BD_LC		(1 <<  2) /* late collision */
+#define	TX_BD_RL		(1 <<  3) /* retransmission limit */
+#define	TX_BD_RETRY_MASK	(0x00f0)
+#define	TX_BD_RETRY(x)		(((x) & 0x00f0) >>  4)
+#define	TX_BD_UR		(1 <<  8) /* transmitter underrun */
+#define	TX_BD_CRC		(1 << 11) /* TX CRC enable */
+#define	TX_BD_PAD		(1 << 12) /* pad enable for short packets */
+#define	TX_BD_WRAP		(1 << 13)
+#define	TX_BD_IRQ		(1 << 14) /* interrupt request enable */
+#define	TX_BD_READY		(1 << 15) /* TX buffer ready */
+#define	TX_BD_LEN(x)		(((x) & 0xffff) << 16)
+#define	TX_BD_LEN_MASK		(0xffff << 16)
+
+#define	TX_BD_STATS		(TX_BD_CS | TX_BD_DF | TX_BD_LC | \
+				TX_BD_RL | TX_BD_RETRY_MASK | TX_BD_UR)
+
+/* RX buffer descriptor */
+#define	RX_BD_LC	(1 <<  0) /* late collision */
+#define	RX_BD_CRC	(1 <<  1) /* RX CRC error */
+#define	RX_BD_SF	(1 <<  2) /* short frame */
+#define	RX_BD_TL	(1 <<  3) /* too long */
+#define	RX_BD_DN	(1 <<  4) /* dribble nibble */
+#define	RX_BD_IS	(1 <<  5) /* invalid symbol */
+#define	RX_BD_OR	(1 <<  6) /* receiver overrun */
+#define	RX_BD_MISS	(1 <<  7)
+#define	RX_BD_CF	(1 <<  8) /* control frame */
+#define	RX_BD_WRAP	(1 << 13)
+#define	RX_BD_IRQ	(1 << 14) /* interrupt request enable */
+#define	RX_BD_EMPTY	(1 << 15)
+#define	RX_BD_LEN(x)	(((x) & 0xffff) << 16)
+
+#define	RX_BD_STATS	(RX_BD_LC | RX_BD_CRC | RX_BD_SF | RX_BD_TL | \
+			RX_BD_DN | RX_BD_IS | RX_BD_OR | RX_BD_MISS)
+
+#define	ETHOC_BUFSIZ		1536
+#define	ETHOC_ZLEN		64
+#define	ETHOC_BD_BASE		0x400
+#define	ETHOC_TIMEOUT		(HZ / 2)
+#define	ETHOC_MII_TIMEOUT	(1 + (HZ / 5))
+
+/**
+ * struct ethoc - driver-private device structure
+ * @iobase:	pointer to I/O memory region
+ * @membase:	pointer to buffer memory region
+ * @num_tx:	number of send buffers
+ * @cur_tx:	last send buffer written
+ * @dty_tx:	last buffer actually sent
+ * @num_rx:	number of receive buffers
+ * @cur_rx:	current receive buffer
+ * @netdev:	pointer to network device structure
+ * @napi:	NAPI structure
+ * @stats:	network device statistics
+ * @msg_enable:	device state flags
+ * @rx_lock:	receive lock
+ * @lock:	device lock
+ * @phy:	attached PHY
+ * @mdio:	MDIO bus for PHY access
+ * @phy_id:	address of attached PHY
+ */
+struct ethoc {
+	void __iomem *iobase;
+	void __iomem *membase;
+
+	unsigned int num_tx;
+	unsigned int cur_tx;
+	unsigned int dty_tx;
+
+	unsigned int num_rx;
+	unsigned int cur_rx;
+
+	struct net_device *netdev;
+	struct napi_struct napi;
+	struct net_device_stats stats;
+	u32 msg_enable;
+
+	spinlock_t rx_lock;
+	spinlock_t lock;
+
+	struct phy_device *phy;
+	struct mii_bus *mdio;
+	s8 phy_id;
+};
+
+/**
+ * struct ethoc_bd - buffer descriptor
+ * @stat:	buffer statistics
+ * @addr:	physical memory address
+ */
+struct ethoc_bd {
+	u32 stat;
+	u32 addr;
+};
+
+static u32 ethoc_read(struct ethoc *dev, loff_t offset)
+{
+	return ioread32(dev->iobase + offset);
+}
+
+static void ethoc_write(struct ethoc *dev, loff_t offset, u32 data)
+{
+	iowrite32(data, dev->iobase + offset);
+}
+
+static void ethoc_read_bd(struct ethoc *dev, int index, struct ethoc_bd *bd)
+{
+	loff_t offset = ETHOC_BD_BASE + (index * sizeof(struct ethoc_bd));
+	bd->stat = ethoc_read(dev, offset + 0);
+	bd->addr = ethoc_read(dev, offset + 4);
+}
+
+static void ethoc_write_bd(struct ethoc *dev, int index,
+		const struct ethoc_bd *bd)
+{
+	loff_t offset = ETHOC_BD_BASE + (index * sizeof(struct ethoc_bd));
+	ethoc_write(dev, offset + 0, bd->stat);
+	ethoc_write(dev, offset + 4, bd->addr);
+}
+
+static void ethoc_enable_irq(struct ethoc *dev, u32 mask)
+{
+	u32 imask = ethoc_read(dev, INT_MASK);
+	imask |= mask;
+	ethoc_write(dev, INT_MASK, imask);
+}
+
+static void ethoc_disable_irq(struct ethoc *dev, u32 mask)
+{
+	u32 imask = ethoc_read(dev, INT_MASK);
+	imask &= ~mask;
+	ethoc_write(dev, INT_MASK, imask);
+}
+
+static void ethoc_ack_irq(struct ethoc *dev, u32 mask)
+{
+	ethoc_write(dev, INT_SOURCE, mask);
+}
+
+static void ethoc_enable_rx_and_tx(struct ethoc *dev)
+{
+	u32 mode = ethoc_read(dev, MODER);
+	mode |= MODER_RXEN | MODER_TXEN;
+	ethoc_write(dev, MODER, mode);
+}
+
+static void ethoc_disable_rx_and_tx(struct ethoc *dev)
+{
+	u32 mode = ethoc_read(dev, MODER);
+	mode &= ~(MODER_RXEN | MODER_TXEN);
+	ethoc_write(dev, MODER, mode);
+}
+
+static int ethoc_init_ring(struct ethoc *dev)
+{
+	struct ethoc_bd bd;
+	int i;
+
+	dev->cur_tx = 0;
+	dev->dty_tx = 0;
+	dev->cur_rx = 0;
+
+	/* setup transmission buffers */
+	bd.addr = 0;
+	bd.stat = TX_BD_IRQ | TX_BD_CRC;
+
+	for (i = 0; i < dev->num_tx; i++) {
+		if (i == dev->num_tx - 1)
+			bd.stat |= TX_BD_WRAP;
+
+		ethoc_write_bd(dev, i, &bd);
+		bd.addr += ETHOC_BUFSIZ;
+	}
+
+	bd.addr = dev->num_tx * ETHOC_BUFSIZ;
+	bd.stat = RX_BD_EMPTY | RX_BD_IRQ;
+
+	for (i = 0; i < dev->num_rx; i++) {
+		if (i == dev->num_rx - 1)
+			bd.stat |= RX_BD_WRAP;
+
+		ethoc_write_bd(dev, dev->num_tx + i, &bd);
+		bd.addr += ETHOC_BUFSIZ;
+	}
+
+	return 0;
+}
+
+static int ethoc_reset(struct ethoc *dev)
+{
+	u32 mode;
+
+	/* TODO: reset controller? */
+
+	ethoc_disable_rx_and_tx(dev);
+
+	/* TODO: setup registers */
+
+	/* enable FCS generation and automatic padding */
+	mode = ethoc_read(dev, MODER);
+	mode |= MODER_CRC | MODER_PAD;
+	ethoc_write(dev, MODER, mode);
+
+	/* set full-duplex mode */
+	mode = ethoc_read(dev, MODER);
+	mode |= MODER_FULLD;
+	ethoc_write(dev, MODER, mode);
+	ethoc_write(dev, IPGT, 0x15);
+
+	ethoc_ack_irq(dev, INT_MASK_ALL);
+	ethoc_enable_irq(dev, INT_MASK_ALL);
+	ethoc_enable_rx_and_tx(dev);
+	return 0;
+}
+
+static unsigned int ethoc_update_rx_stats(struct ethoc *dev,
+		struct ethoc_bd *bd)
+{
+	struct net_device *netdev = dev->netdev;
+	unsigned int ret = 0;
+
+	if (bd->stat & RX_BD_TL) {
+		dev_err(&netdev->dev, "RX: frame too long\n");
+		dev->stats.rx_length_errors++;
+		ret++;
+	}
+
+	if (bd->stat & RX_BD_SF) {
+		dev_err(&netdev->dev, "RX: frame too short\n");
+		dev->stats.rx_length_errors++;
+		ret++;
+	}
+
+	if (bd->stat & RX_BD_DN) {
+		dev_err(&netdev->dev, "RX: dribble nibble\n");
+		dev->stats.rx_frame_errors++;
+	}
+
+	if (bd->stat & RX_BD_CRC) {
+		dev_err(&netdev->dev, "RX: wrong CRC\n");
+		dev->stats.rx_crc_errors++;
+		ret++;
+	}
+
+	if (bd->stat & RX_BD_OR) {
+		dev_err(&netdev->dev, "RX: overrun\n");
+		dev->stats.rx_over_errors++;
+		ret++;
+	}
+
+	if (bd->stat & RX_BD_MISS)
+		dev->stats.rx_missed_errors++;
+
+	if (bd->stat & RX_BD_LC) {
+		dev_err(&netdev->dev, "RX: late collision\n");
+		dev->stats.collisions++;
+		ret++;
+	}
+
+	return ret;
+}
+
+static int ethoc_rx(struct net_device *dev, int limit)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	int count;
+
+	for (count = 0; count < limit; ++count) {
+		unsigned int entry;
+		struct ethoc_bd bd;
+
+		entry = priv->num_tx + (priv->cur_rx % priv->num_rx);
+		ethoc_read_bd(priv, entry, &bd);
+		if (bd.stat & RX_BD_EMPTY)
+			break;
+
+		if (ethoc_update_rx_stats(priv, &bd) == 0) {
+			int size = bd.stat >> 16;
+			struct sk_buff *skb = netdev_alloc_skb(dev, size);
+			if (likely(skb)) {
+				void *src = priv->membase + bd.addr;
+				memcpy_fromio(skb_put(skb, size), src, size);
+				skb->protocol = eth_type_trans(skb, dev);
+				dev->last_rx = jiffies;
+				priv->stats.rx_packets++;
+				priv->stats.rx_bytes += size;
+				netif_receive_skb(skb);
+			} else {
+				if (net_ratelimit())
+					dev_warn(&dev->dev, "low on memory - "
+							"packet dropped\n");
+
+				priv->stats.rx_dropped++;
+				break;
+			}
+		}
+
+		/* clear the buffer descriptor so it can be reused */
+		bd.stat &= ~RX_BD_STATS;
+		bd.stat |=  RX_BD_EMPTY;
+		ethoc_write_bd(priv, entry, &bd);
+		priv->cur_rx++;
+	}
+
+	return count;
+}
+
+static int ethoc_update_tx_stats(struct ethoc *dev, struct ethoc_bd *bd)
+{
+	struct net_device *netdev = dev->netdev;
+
+	if (bd->stat & TX_BD_LC) {
+		dev_err(&netdev->dev, "TX: late collision\n");
+		dev->stats.tx_window_errors++;
+	}
+
+	if (bd->stat & TX_BD_RL) {
+		dev_err(&netdev->dev, "TX: retransmit limit\n");
+		dev->stats.tx_aborted_errors++;
+	}
+
+	if (bd->stat & TX_BD_UR) {
+		dev_err(&netdev->dev, "TX: underrun\n");
+		dev->stats.tx_fifo_errors++;
+	}
+
+	if (bd->stat & TX_BD_CS) {
+		dev_err(&netdev->dev, "TX: carrier sense lost\n");
+		dev->stats.tx_carrier_errors++;
+	}
+
+	if (bd->stat & TX_BD_STATS)
+		dev->stats.tx_errors++;
+
+	dev->stats.collisions += (bd->stat >> 4) & 0xf;
+	dev->stats.tx_bytes += bd->stat >> 16;
+	dev->stats.tx_packets++;
+	return 0;
+}
+
+static void ethoc_tx(struct net_device *dev)
+{
+	struct ethoc *priv = netdev_priv(dev);
+
+	spin_lock(&priv->lock);
+
+	while (priv->dty_tx != priv->cur_tx) {
+		unsigned int entry = priv->dty_tx % priv->num_tx;
+		struct ethoc_bd bd;
+
+		ethoc_read_bd(priv, entry, &bd);
+		if (bd.stat & TX_BD_READY)
+			break;
+
+		entry = (++priv->dty_tx) % priv->num_tx;
+		(void)ethoc_update_tx_stats(priv, &bd);
+	}
+
+	if ((priv->cur_tx - priv->dty_tx) <= (priv->num_tx / 2))
+		netif_wake_queue(dev);
+
+	ethoc_ack_irq(priv, INT_MASK_TX);
+	spin_unlock(&priv->lock);
+}
+
+static irqreturn_t ethoc_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = (struct net_device *)dev_id;
+	struct ethoc *priv = netdev_priv(dev);
+	u32 pending;
+
+	ethoc_disable_irq(priv, INT_MASK_ALL);
+	pending = ethoc_read(priv, INT_SOURCE);
+	if (unlikely(pending == 0)) {
+		ethoc_enable_irq(priv, INT_MASK_ALL);
+		return IRQ_NONE;
+	}
+
+	ethoc_ack_irq(priv, INT_MASK_ALL);
+
+	if (pending & INT_MASK_BUSY) {
+		dev_err(&dev->dev, "packet dropped\n");
+		priv->stats.rx_dropped++;
+	}
+
+	if (pending & INT_MASK_RX) {
+		if (napi_schedule_prep(&priv->napi))
+			__napi_schedule(&priv->napi);
+	} else {
+		ethoc_enable_irq(priv, INT_MASK_RX);
+	}
+
+	if (pending & INT_MASK_TX)
+		ethoc_tx(dev);
+
+	ethoc_enable_irq(priv, INT_MASK_ALL & ~INT_MASK_RX);
+	return IRQ_HANDLED;
+}
+
+static int ethoc_get_mac_address(struct net_device *dev, void *addr)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	u8 *mac = (u8 *)addr;
+	u32 reg;
+
+	reg = ethoc_read(priv, MAC_ADDR0);
+	mac[2] = (reg >> 24) & 0xff;
+	mac[3] = (reg >> 16) & 0xff;
+	mac[4] = (reg >>  8) & 0xff;
+	mac[5] = (reg >>  0) & 0xff;
+
+	reg = ethoc_read(priv, MAC_ADDR1);
+	mac[0] = (reg >>  8) & 0xff;
+	mac[1] = (reg >>  0) & 0xff;
+
+	return 0;
+}
+
+static int ethoc_poll(struct napi_struct *napi, int budget)
+{
+	struct ethoc *priv = container_of(napi, struct ethoc, napi);
+	int work_done = 0;
+
+	work_done = ethoc_rx(priv->netdev, budget);
+	if (work_done < budget) {
+		ethoc_enable_irq(priv, INT_MASK_RX);
+		napi_complete(napi);
+	}
+
+	return work_done;
+}
+
+static int ethoc_mdio_read(struct mii_bus *bus, int phy, int reg)
+{
+	unsigned long timeout = jiffies + ETHOC_MII_TIMEOUT;
+	struct ethoc *priv = bus->priv;
+
+	ethoc_write(priv, MIIADDRESS, MIIADDRESS_ADDR(phy, reg));
+	ethoc_write(priv, MIICOMMAND, MIICOMMAND_READ);
+
+	while (time_before(jiffies, timeout)) {
+		u32 status = ethoc_read(priv, MIISTATUS);
+		if (!(status & MIISTATUS_BUSY)) {
+			u32 data = ethoc_read(priv, MIIRX_DATA);
+			/* reset MII command register */
+			ethoc_write(priv, MIICOMMAND, 0);
+			return data;
+		}
+
+		schedule();
+	}
+
+	return -EBUSY;
+}
+
+static int ethoc_mdio_write(struct mii_bus *bus, int phy, int reg, u16 val)
+{
+	unsigned long timeout = jiffies + ETHOC_MII_TIMEOUT;
+	struct ethoc *priv = bus->priv;
+
+	ethoc_write(priv, MIIADDRESS, MIIADDRESS_ADDR(phy, reg));
+	ethoc_write(priv, MIITX_DATA, val);
+	ethoc_write(priv, MIICOMMAND, MIICOMMAND_WRITE);
+
+	while (time_before(jiffies, timeout)) {
+		u32 stat = ethoc_read(priv, MIISTATUS);
+		if (!(stat & MIISTATUS_BUSY))
+			return 0;
+
+		schedule();
+	}
+
+	return -EBUSY;
+}
+
+static int ethoc_mdio_reset(struct mii_bus *bus)
+{
+	return 0;
+}
+
+static void ethoc_mdio_poll(struct net_device *dev)
+{
+}
+
+static int ethoc_mdio_probe(struct net_device *dev)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	struct phy_device *phy;
+	int i;
+
+	for (i = 0; i < PHY_MAX_ADDR; i++) {
+		phy = priv->mdio->phy_map[i];
+		if (phy) {
+			if (priv->phy_id != -1) {
+				/* attach to specified PHY */
+				if (priv->phy_id == phy->addr)
+					break;
+			} else {
+				/* autoselect PHY if none was specified */
+				if (phy->addr != 0)
+					break;
+			}
+		}
+	}
+
+	if (!phy) {
+		dev_err(&dev->dev, "no PHY found\n");
+		return -ENXIO;
+	}
+
+	phy = phy_connect(dev, dev_name(&phy->dev), &ethoc_mdio_poll, 0,
+			PHY_INTERFACE_MODE_GMII);
+	if (IS_ERR(phy)) {
+		dev_err(&dev->dev, "could not attach to PHY\n");
+		return PTR_ERR(phy);
+	}
+
+	priv->phy = phy;
+	return 0;
+}
+
+static int ethoc_open(struct net_device *dev)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	unsigned int min_tx = 2;
+	unsigned int num_bd;
+	int ret;
+
+	ret = request_irq(dev->irq, ethoc_interrupt, IRQF_SHARED,
+			dev->name, dev);
+	if (ret)
+		return ret;
+
+	/* calculate the number of TX/RX buffers */
+	num_bd = (dev->mem_end - dev->mem_start + 1) / ETHOC_BUFSIZ;
+	priv->num_tx = min(min_tx, num_bd / 4);
+	priv->num_rx = num_bd - priv->num_tx;
+	ethoc_write(priv, TX_BD_NUM, priv->num_tx);
+
+	ethoc_init_ring(priv);
+	ethoc_reset(priv);
+
+	if (netif_queue_stopped(dev)) {
+		dev_dbg(&dev->dev, " resuming queue\n");
+		netif_wake_queue(dev);
+	} else {
+		dev_dbg(&dev->dev, " starting queue\n");
+		netif_start_queue(dev);
+	}
+
+	phy_start(priv->phy);
+	napi_enable(&priv->napi);
+
+	if (netif_msg_ifup(priv)) {
+		dev_info(&dev->dev, "I/O: %08lx Memory: %08lx-%08lx\n",
+				dev->base_addr, dev->mem_start, dev->mem_end);
+	}
+
+	return 0;
+}
+
+static int ethoc_stop(struct net_device *dev)
+{
+	struct ethoc *priv = netdev_priv(dev);
+
+	napi_disable(&priv->napi);
+
+	if (priv->phy)
+		phy_stop(priv->phy);
+
+	ethoc_disable_rx_and_tx(priv);
+	free_irq(dev->irq, dev);
+
+	if (!netif_queue_stopped(dev))
+		netif_stop_queue(dev);
+
+	return 0;
+}
+
+static int ethoc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	struct mii_ioctl_data *mdio = if_mii(ifr);
+	struct phy_device *phy = NULL;
+
+	if (!netif_running(dev))
+		return -EINVAL;
+
+	if (cmd != SIOCGMIIPHY) {
+		if (mdio->phy_id >= PHY_MAX_ADDR)
+			return -ERANGE;
+
+		phy = priv->mdio->phy_map[mdio->phy_id];
+		if (!phy)
+			return -ENODEV;
+	} else {
+		phy = priv->phy;
+	}
+
+	return phy_mii_ioctl(phy, mdio, cmd);
+}
+
+static int ethoc_config(struct net_device *dev, struct ifmap *map)
+{
+	return -ENOSYS;
+}
+
+static int ethoc_set_mac_address(struct net_device *dev, void *addr)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	u8 *mac = (u8 *)addr;
+
+	ethoc_write(priv, MAC_ADDR0, (mac[2] << 24) | (mac[3] << 16) |
+				     (mac[4] <<  8) | (mac[5] <<  0));
+	ethoc_write(priv, MAC_ADDR1, (mac[0] <<  8) | (mac[1] <<  0));
+
+	return 0;
+}
+
+static void ethoc_set_multicast_list(struct net_device *dev)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	u32 mode = ethoc_read(priv, MODER);
+	struct dev_mc_list *mc = NULL;
+	u32 hash[2] = { 0, 0 };
+
+	/* set loopback mode if requested */
+	if (dev->flags & IFF_LOOPBACK)
+		mode |=  MODER_LOOP;
+	else
+		mode &= ~MODER_LOOP;
+
+	/* receive broadcast frames if requested */
+	if (dev->flags & IFF_BROADCAST)
+		mode &= ~MODER_BRO;
+	else
+		mode |=  MODER_BRO;
+
+	/* enable promiscuous mode if requested */
+	if (dev->flags & IFF_PROMISC)
+		mode |=  MODER_PRO;
+	else
+		mode &= ~MODER_PRO;
+
+	ethoc_write(priv, MODER, mode);
+
+	/* receive multicast frames */
+	if (dev->flags & IFF_ALLMULTI) {
+		hash[0] = 0xffffffff;
+		hash[1] = 0xffffffff;
+	} else {
+		for (mc = dev->mc_list; mc; mc = mc->next) {
+			u32 crc = ether_crc(mc->dmi_addrlen, mc->dmi_addr);
+			int bit = (crc >> 26) & 0x3f;
+			hash[bit >> 5] |= 1 << (bit & 0x1f);
+		}
+	}
+
+	ethoc_write(priv, ETH_HASH0, hash[0]);
+	ethoc_write(priv, ETH_HASH1, hash[1]);
+}
+
+static int ethoc_change_mtu(struct net_device *dev, int new_mtu)
+{
+	return -ENOSYS;
+}
+
+static void ethoc_tx_timeout(struct net_device *dev)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	u32 pending = ethoc_read(priv, INT_SOURCE);
+	if (likely(pending))
+		ethoc_interrupt(dev->irq, dev);
+}
+
+static struct net_device_stats *ethoc_stats(struct net_device *dev)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	return &priv->stats;
+}
+
+static int ethoc_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct ethoc *priv = netdev_priv(dev);
+	struct ethoc_bd bd;
+	unsigned int entry;
+	void *dest;
+
+	if (unlikely(skb->len > ETHOC_BUFSIZ)) {
+		priv->stats.tx_errors++;
+		return -EMSGSIZE;
+	}
+
+	entry = priv->cur_tx % priv->num_tx;
+	spin_lock_irq(&priv->lock);
+	priv->cur_tx++;
+
+	ethoc_read_bd(priv, entry, &bd);
+	if (unlikely(skb->len < ETHOC_ZLEN))
+		bd.stat |=  TX_BD_PAD;
+	else
+		bd.stat &= ~TX_BD_PAD;
+
+	dest = priv->membase + bd.addr;
+	memcpy_toio(dest, skb->data, skb->len);
+
+	bd.stat &= ~(TX_BD_STATS | TX_BD_LEN_MASK);
+	bd.stat |= TX_BD_LEN(skb->len);
+	ethoc_write_bd(priv, entry, &bd);
+
+	bd.stat |= TX_BD_READY;
+	ethoc_write_bd(priv, entry, &bd);
+
+	if (priv->cur_tx == (priv->dty_tx + priv->num_tx)) {
+		dev_dbg(&dev->dev, "stopping queue\n");
+		netif_stop_queue(dev);
+	}
+
+	dev->trans_start = jiffies;
+	dev_kfree_skb(skb);
+
+	spin_unlock_irq(&priv->lock);
+	return NETDEV_TX_OK;
+}
+
+static const struct net_device_ops ethoc_netdev_ops = {
+	.ndo_open = ethoc_open,
+	.ndo_stop = ethoc_stop,
+	.ndo_do_ioctl = ethoc_ioctl,
+	.ndo_set_config = ethoc_config,
+	.ndo_set_mac_address = ethoc_set_mac_address,
+	.ndo_set_multicast_list = ethoc_set_multicast_list,
+	.ndo_change_mtu = ethoc_change_mtu,
+	.ndo_tx_timeout = ethoc_tx_timeout,
+	.ndo_get_stats = ethoc_stats,
+	.ndo_start_xmit = ethoc_start_xmit,
+};
+
+/**
+ * ethoc_probe() - initialize OpenCores ethernet MAC
+ * pdev:	platform device
+ */
+static int ethoc_probe(struct platform_device *pdev)
+{
+	struct net_device *netdev = NULL;
+	struct resource *res = NULL;
+	struct resource *mmio = NULL;
+	struct resource *mem = NULL;
+	struct ethoc *priv = NULL;
+	unsigned int phy;
+	int ret = 0;
+
+	/* allocate networking device */
+	netdev = alloc_etherdev(sizeof(struct ethoc));
+	if (!netdev) {
+		dev_err(&pdev->dev, "cannot allocate network device\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+	platform_set_drvdata(pdev, netdev);
+
+	/* obtain I/O memory space */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "cannot obtain I/O memory space\n");
+		ret = -ENXIO;
+		goto free;
+	}
+
+	mmio = devm_request_mem_region(&pdev->dev, res->start,
+			res->end - res->start + 1, res->name);
+	if (!res) {
+		dev_err(&pdev->dev, "cannot request I/O memory space\n");
+		ret = -ENXIO;
+		goto free;
+	}
+
+	netdev->base_addr = mmio->start;
+
+	/* obtain buffer memory space */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (!res) {
+		dev_err(&pdev->dev, "cannot obtain memory space\n");
+		ret = -ENXIO;
+		goto free;
+	}
+
+	mem = devm_request_mem_region(&pdev->dev, res->start,
+			res->end - res->start + 1, res->name);
+	if (!mem) {
+		dev_err(&pdev->dev, "cannot request memory space\n");
+		ret = -ENXIO;
+		goto free;
+	}
+
+	netdev->mem_start = mem->start;
+	netdev->mem_end   = mem->end;
+
+	/* obtain device IRQ number */
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "cannot obtain IRQ\n");
+		ret = -ENXIO;
+		goto free;
+	}
+
+	netdev->irq = res->start;
+
+	/* setup driver-private data */
+	priv = netdev_priv(netdev);
+	priv->netdev = netdev;
+
+	priv->iobase = devm_ioremap_nocache(&pdev->dev, netdev->base_addr,
+			mmio->end - mmio->start + 1);
+	if (!priv->iobase) {
+		dev_err(&pdev->dev, "cannot remap I/O memory space\n");
+		ret = -ENXIO;
+		goto error;
+	}
+
+	priv->membase = devm_ioremap_nocache(&pdev->dev, netdev->mem_start,
+			mem->end - mem->start + 1);
+	if (!priv->membase) {
+		dev_err(&pdev->dev, "cannot remap memory space\n");
+		ret = -ENXIO;
+		goto error;
+	}
+
+	/* Allow the platform setup code to pass in a MAC address. */
+	if (pdev->dev.platform_data) {
+		struct ethoc_platform_data *pdata =
+			(struct ethoc_platform_data *)pdev->dev.platform_data;
+		memcpy(netdev->dev_addr, pdata->hwaddr, IFHWADDRLEN);
+		priv->phy_id = pdata->phy_id;
+	}
+
+	/* Check that the given MAC address is valid. If it isn't, read the
+	 * current MAC from the controller. */
+	if (!is_valid_ether_addr(netdev->dev_addr))
+		ethoc_get_mac_address(netdev, netdev->dev_addr);
+
+	/* Check the MAC again for validity, if it still isn't choose and
+	 * program a random one. */
+	if (!is_valid_ether_addr(netdev->dev_addr))
+		random_ether_addr(netdev->dev_addr);
+
+	ethoc_set_mac_address(netdev, netdev->dev_addr);
+
+	/* register MII bus */
+	priv->mdio = mdiobus_alloc();
+	if (!priv->mdio) {
+		ret = -ENOMEM;
+		goto free;
+	}
+
+	priv->mdio->name = "ethoc-mdio";
+	snprintf(priv->mdio->id, MII_BUS_ID_SIZE, "%s-%d",
+			priv->mdio->name, pdev->id);
+	priv->mdio->read = ethoc_mdio_read;
+	priv->mdio->write = ethoc_mdio_write;
+	priv->mdio->reset = ethoc_mdio_reset;
+	priv->mdio->priv = priv;
+
+	priv->mdio->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+	if (!priv->mdio->irq) {
+		ret = -ENOMEM;
+		goto free_mdio;
+	}
+
+	for (phy = 0; phy < PHY_MAX_ADDR; phy++)
+		priv->mdio->irq[phy] = PHY_POLL;
+
+	ret = mdiobus_register(priv->mdio);
+	if (ret) {
+		dev_err(&netdev->dev, "failed to register MDIO bus\n");
+		goto free_mdio;
+	}
+
+	ret = ethoc_mdio_probe(netdev);
+	if (ret) {
+		dev_err(&netdev->dev, "failed to probe MDIO bus\n");
+		goto error;
+	}
+
+	ether_setup(netdev);
+
+	/* setup the net_device structure */
+	netdev->netdev_ops = &ethoc_netdev_ops;
+	netdev->watchdog_timeo = ETHOC_TIMEOUT;
+	netdev->features |= 0;
+
+	/* setup NAPI */
+	memset(&priv->napi, 0, sizeof(priv->napi));
+	netif_napi_add(netdev, &priv->napi, ethoc_poll, 64);
+
+	spin_lock_init(&priv->rx_lock);
+	spin_lock_init(&priv->lock);
+
+	ret = register_netdev(netdev);
+	if (ret < 0) {
+		dev_err(&netdev->dev, "failed to register interface\n");
+		goto error;
+	}
+
+	goto out;
+
+error:
+	mdiobus_unregister(priv->mdio);
+free_mdio:
+	kfree(priv->mdio->irq);
+	mdiobus_free(priv->mdio);
+free:
+	free_netdev(netdev);
+out:
+	return ret;
+}
+
+/**
+ * ethoc_remove() - shutdown OpenCores ethernet MAC
+ * @pdev:	platform device
+ */
+static int ethoc_remove(struct platform_device *pdev)
+{
+	struct net_device *netdev = platform_get_drvdata(pdev);
+	struct ethoc *priv = netdev_priv(netdev);
+
+	platform_set_drvdata(pdev, NULL);
+
+	if (netdev) {
+		phy_disconnect(priv->phy);
+		priv->phy = NULL;
+
+		if (priv->mdio) {
+			mdiobus_unregister(priv->mdio);
+			kfree(priv->mdio->irq);
+			mdiobus_free(priv->mdio);
+		}
+
+		unregister_netdev(netdev);
+		free_netdev(netdev);
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int ethoc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	return -ENOSYS;
+}
+
+static int ethoc_resume(struct platform_device *pdev)
+{
+	return -ENOSYS;
+}
+#else
+# define ethoc_suspend NULL
+# define ethoc_resume  NULL
+#endif
+
+static struct platform_driver ethoc_driver = {
+	.probe   = ethoc_probe,
+	.remove  = ethoc_remove,
+	.suspend = ethoc_suspend,
+	.resume  = ethoc_resume,
+	.driver  = {
+		.name = "ethoc",
+	},
+};
+
+static int __init ethoc_init(void)
+{
+	return platform_driver_register(&ethoc_driver);
+}
+
+static void __exit ethoc_exit(void)
+{
+	platform_driver_unregister(&ethoc_driver);
+}
+
+module_init(ethoc_init);
+module_exit(ethoc_exit);
+
+MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
+MODULE_DESCRIPTION("OpenCores Ethernet MAC driver");
+MODULE_LICENSE("GPL v2");
+
diff --git a/include/net/ethoc.h b/include/net/ethoc.h
new file mode 100644
index 000000000000..96f3789b27bc
--- /dev/null
+++ b/include/net/ethoc.h
@@ -0,0 +1,22 @@
+/*
+ * linux/include/net/ethoc.h
+ *
+ * Copyright (C) 2008-2009 Avionic Design GmbH
+ *
+ * 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.
+ *
+ * Written by Thierry Reding <thierry.reding@avionic-design.de>
+ */
+
+#ifndef LINUX_NET_ETHOC_H
+#define LINUX_NET_ETHOC_H 1
+
+struct ethoc_platform_data {
+	u8 hwaddr[IFHWADDRLEN];
+	s8 phy_id;
+};
+
+#endif /* !LINUX_NET_ETHOC_H */
+
-- 
cgit v1.2.3


From ac99533fb716171db12798039671f19631cf3586 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Thu, 26 Mar 2009 15:11:25 +0000
Subject: wan: convert sdla driver to net_device_ops

Also use internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wan/sdla.c  | 36 +++++++++++++++---------------------
 include/linux/if_frad.h |  1 -
 2 files changed, 15 insertions(+), 22 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wan/sdla.c b/drivers/net/wan/sdla.c
index 6a07ba9371db..1d637f407a0c 100644
--- a/drivers/net/wan/sdla.c
+++ b/drivers/net/wan/sdla.c
@@ -714,19 +714,19 @@ static int sdla_transmit(struct sk_buff *skb, struct net_device *dev)
 		switch (ret)
 		{
 			case SDLA_RET_OK:
-				flp->stats.tx_packets++;
+				dev->stats.tx_packets++;
 				ret = DLCI_RET_OK;
 				break;
 
 			case SDLA_RET_CIR_OVERFLOW:
 			case SDLA_RET_BUF_OVERSIZE:
 			case SDLA_RET_NO_BUFS:
-				flp->stats.tx_dropped++;
+				dev->stats.tx_dropped++;
 				ret = DLCI_RET_DROP;
 				break;
 
 			default:
-				flp->stats.tx_errors++;
+				dev->stats.tx_errors++;
 				ret = DLCI_RET_ERR;
 				break;
 		}
@@ -807,7 +807,7 @@ static void sdla_receive(struct net_device *dev)
 		if (i == CONFIG_DLCI_MAX)
 		{
 			printk(KERN_NOTICE "%s: Received packet from invalid DLCI %i, ignoring.", dev->name, dlci);
-			flp->stats.rx_errors++;
+			dev->stats.rx_errors++;
 			success = 0;
 		}
 	}
@@ -819,7 +819,7 @@ static void sdla_receive(struct net_device *dev)
 		if (skb == NULL) 
 		{
 			printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
-			flp->stats.rx_dropped++; 
+			dev->stats.rx_dropped++;
 			success = 0;
 		}
 		else
@@ -859,7 +859,7 @@ static void sdla_receive(struct net_device *dev)
 
 	if (success)
 	{
-		flp->stats.rx_packets++;
+		dev->stats.rx_packets++;
 		dlp = netdev_priv(master);
 		(*dlp->receive)(skb, master);
 	}
@@ -1590,13 +1590,14 @@ fail:
 	return err;
 }
  
-static struct net_device_stats *sdla_stats(struct net_device *dev)
-{
-	struct frad_local *flp;
-	flp = netdev_priv(dev);
-
-	return(&flp->stats);
-}
+static const struct net_device_ops sdla_netdev_ops = {
+	.ndo_open	= sdla_open,
+	.ndo_stop	= sdla_close,
+	.ndo_do_ioctl	= sdla_ioctl,
+	.ndo_set_config	= sdla_set_config,
+	.ndo_start_xmit	= sdla_transmit,
+	.ndo_change_mtu	= sdla_change_mtu,
+};
 
 static void setup_sdla(struct net_device *dev)
 {
@@ -1604,20 +1605,13 @@ static void setup_sdla(struct net_device *dev)
 
 	netdev_boot_setup_check(dev);
 
+	dev->netdev_ops		= &sdla_netdev_ops;
 	dev->flags		= 0;
 	dev->type		= 0xFFFF;
 	dev->hard_header_len	= 0;
 	dev->addr_len		= 0;
 	dev->mtu		= SDLA_MAX_MTU;
 
-	dev->open		= sdla_open;
-	dev->stop		= sdla_close;
-	dev->do_ioctl		= sdla_ioctl;
-	dev->set_config		= sdla_set_config;
-	dev->get_stats		= sdla_stats;
-	dev->hard_start_xmit	= sdla_transmit;
-	dev->change_mtu		= sdla_change_mtu;
-
 	flp->activate		= sdla_activate;
 	flp->deactivate		= sdla_deactivate;
 	flp->assoc		= sdla_assoc;
diff --git a/include/linux/if_frad.h b/include/linux/if_frad.h
index 60e16a551dd6..673f2209453d 100644
--- a/include/linux/if_frad.h
+++ b/include/linux/if_frad.h
@@ -153,7 +153,6 @@ struct frhdr
 
 struct dlci_local
 {
-   struct net_device_stats stats;
    struct net_device      *master;
    struct net_device      *slave;
    struct dlci_conf       config;
-- 
cgit v1.2.3


From 088b1b88609ce89b6ab19d114cdbec94a44aa22c Mon Sep 17 00:00:00 2001
From: Borislav Petkov <petkovbb@gmail.com>
Date: Fri, 2 Jan 2009 13:34:47 +0100
Subject: ide: improve debugging scheme

and more specifically, push __func__ into debug
macro thus making ide_debug_log() calls shorter and more readable.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
---
 drivers/ide/ide-cd.c     | 124 ++++++++++++++++++++++-------------------------
 drivers/ide/ide-cd.h     |   2 +-
 drivers/ide/ide-floppy.c |  35 ++++++-------
 drivers/ide/ide-gd.c     |   4 +-
 drivers/ide/ide-gd.h     |   2 +-
 include/linux/ide.h      |   9 ++--
 6 files changed, 83 insertions(+), 93 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 2177cd11664c..d163e6571e09 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -100,8 +100,7 @@ static int cdrom_log_sense(ide_drive_t *drive, struct request *rq,
 {
 	int log = 0;
 
-	ide_debug_log(IDE_DBG_SENSE, "Call %s, sense_key: 0x%x\n", __func__,
-		      sense->sense_key);
+	ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key);
 
 	if (!sense || !rq || (rq->cmd_flags & REQ_QUIET))
 		return 0;
@@ -151,13 +150,12 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive,
 	unsigned long bio_sectors;
 	struct cdrom_info *info = drive->driver_data;
 
-	ide_debug_log(IDE_DBG_SENSE, "Call %s, error_code: 0x%x, "
-			"sense_key: 0x%x\n", __func__, sense->error_code,
-			sense->sense_key);
+	ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x",
+				     sense->error_code, sense->sense_key);
 
 	if (failed_command)
-		ide_debug_log(IDE_DBG_SENSE, "%s: failed cmd: 0x%x\n",
-				__func__, failed_command->cmd[0]);
+		ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x",
+					     failed_command->cmd[0]);
 
 	if (!cdrom_log_sense(drive, failed_command, sense))
 		return;
@@ -217,7 +215,7 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
 	struct cdrom_info *info		= drive->driver_data;
 	struct request *rq		= &info->request_sense_request;
 
-	ide_debug_log(IDE_DBG_SENSE, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_SENSE, "enter");
 
 	if (sense == NULL)
 		sense = &info->sense_data;
@@ -239,8 +237,8 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
 	rq->buffer = (void *) failed_command;
 
 	if (failed_command)
-		ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x\n",
-			      failed_command->cmd[0]);
+		ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x",
+					     failed_command->cmd[0]);
 
 	drive->hwif->rq = NULL;
 
@@ -252,9 +250,8 @@ static void cdrom_end_request(ide_drive_t *drive, int uptodate)
 	struct request *rq = drive->hwif->rq;
 	int nsectors = rq->hard_cur_sectors;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s, cmd: 0x%x, uptodate: 0x%x, "
-		      "nsectors: %d\n", __func__, rq->cmd[0], uptodate,
-		      nsectors);
+	ide_debug_log(IDE_DBG_FUNC, "cmd: 0x%x, uptodate: 0x%x, nsectors: %d",
+				    rq->cmd[0], uptodate, nsectors);
 
 	if (blk_sense_request(rq) && uptodate) {
 		/*
@@ -295,8 +292,8 @@ static void cdrom_end_request(ide_drive_t *drive, int uptodate)
 	if (!nsectors)
 		nsectors = 1;
 
-	ide_debug_log(IDE_DBG_FUNC, "Exit %s, uptodate: 0x%x, nsectors: %d\n",
-		      __func__, uptodate, nsectors);
+	ide_debug_log(IDE_DBG_FUNC, "uptodate: 0x%x, nsectors: %d",
+				    uptodate, nsectors);
 
 	ide_end_request(drive, uptodate, nsectors);
 }
@@ -338,9 +335,10 @@ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
 		return 1;
 	}
 
-	ide_debug_log(IDE_DBG_RQ, "%s: stat: 0x%x, good_stat: 0x%x, "
-		      "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x, err: 0x%x\n",
-		      __func__, stat, good_stat, rq->cmd[0], rq->cmd_type, err);
+	ide_debug_log(IDE_DBG_RQ, "stat: 0x%x, good_stat: 0x%x, cmd[0]: 0x%x, "
+				  "rq->cmd_type: 0x%x, err: 0x%x",
+				  stat, good_stat, rq->cmd[0], rq->cmd_type,
+				  err);
 
 	if (blk_sense_request(rq)) {
 		/*
@@ -530,8 +528,7 @@ static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq,
 {
 	ide_hwif_t *hwif = drive->hwif;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s, ireason: 0x%x, rw: 0x%x\n",
-		      __func__, ireason, rw);
+	ide_debug_log(IDE_DBG_FUNC, "ireason: 0x%x, rw: 0x%x", ireason, rw);
 
 	/*
 	 * ireason == 0: the drive wants to receive data from us
@@ -572,7 +569,7 @@ static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq,
  */
 static int ide_cd_check_transfer_size(ide_drive_t *drive, int len)
 {
-	ide_debug_log(IDE_DBG_FUNC, "Call %s, len: %d\n", __func__, len);
+	ide_debug_log(IDE_DBG_FUNC, "len: %d", len);
 
 	if ((len % SECTOR_SIZE) == 0)
 		return 0;
@@ -594,8 +591,7 @@ static int ide_cd_check_transfer_size(ide_drive_t *drive, int len)
 static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive,
 						 struct request *rq)
 {
-	ide_debug_log(IDE_DBG_RQ, "Call %s: rq->cmd_flags: 0x%x\n", __func__,
-		      rq->cmd_flags);
+	ide_debug_log(IDE_DBG_RQ, "rq->cmd_flags: 0x%x", rq->cmd_flags);
 
 	if (rq_data_dir(rq) == READ) {
 		unsigned short sectors_per_frame =
@@ -639,7 +635,7 @@ static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive,
 static void ide_cd_restore_request(ide_drive_t *drive, struct request *rq)
 {
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	if (rq->buffer != bio_data(rq->bio)) {
 		sector_t n =
@@ -658,8 +654,7 @@ static void ide_cd_restore_request(ide_drive_t *drive, struct request *rq)
 
 static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct request *rq)
 {
-	ide_debug_log(IDE_DBG_FUNC, "Call %s, rq->cmd[0]: 0x%x\n",
-		      __func__, rq->cmd[0]);
+	ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]);
 
 	/*
 	 * Some of the trailing request sense fields are optional,
@@ -686,9 +681,9 @@ int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
 	if (!sense)
 		sense = &local_sense;
 
-	ide_debug_log(IDE_DBG_PC, "Call %s, cmd[0]: 0x%x, write: 0x%x, "
-		      "timeout: %d, cmd_flags: 0x%x\n", __func__, cmd[0], write,
-		      timeout, cmd_flags);
+	ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, "
+				  "cmd_flags: 0x%x",
+				  cmd[0], write, timeout, cmd_flags);
 
 	/* start of retry loop */
 	do {
@@ -772,8 +767,8 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 	u16 len;
 	u8 ireason;
 
-	ide_debug_log(IDE_DBG_PC, "Call %s, rq->cmd[0]: 0x%x, write: 0x%x\n",
-		      __func__, rq->cmd[0], write);
+	ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x",
+				  rq->cmd[0], write);
 
 	/* check for errors */
 	dma = drive->dma;
@@ -810,8 +805,8 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 	if (thislen > len)
 		thislen = len;
 
-	ide_debug_log(IDE_DBG_PC, "%s: DRQ: stat: 0x%x, thislen: %d\n",
-		      __func__, stat, thislen);
+	ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d",
+				  stat, thislen);
 
 	/* If DRQ is clear, the command has completed. */
 	if ((stat & ATA_DRQ) == 0) {
@@ -876,8 +871,9 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 		xferfunc = hwif->tp_ops->input_data;
 	}
 
-	ide_debug_log(IDE_DBG_PC, "%s: data transfer, rq->cmd_type: 0x%x, "
-		      "ireason: 0x%x\n", __func__, rq->cmd_type, ireason);
+	ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, "
+				  "ireason: 0x%x",
+				  rq->cmd_type, ireason);
 
 	/* transfer data */
 	while (thislen > 0) {
@@ -988,9 +984,9 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
 	unsigned short sectors_per_frame =
 		queue_hardsect_size(drive->queue) >> SECTOR_BITS;
 
-	ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, write: 0x%x, "
-		      "secs_per_frame: %u\n",
-		      __func__, rq->cmd[0], write, sectors_per_frame);
+	ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, write: 0x%x, "
+				  "secs_per_frame: %u",
+				  rq->cmd[0], write, sectors_per_frame);
 
 	if (write) {
 		/* disk has become write protected */
@@ -1026,9 +1022,8 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
 static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
 {
 
-	ide_debug_log(IDE_DBG_PC, "Call %s, rq->cmd[0]: 0x%x, "
-		      "rq->cmd_type: 0x%x\n", __func__, rq->cmd[0],
-		      rq->cmd_type);
+	ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",
+				  rq->cmd[0], rq->cmd_type);
 
 	if (blk_pc_request(rq))
 		rq->cmd_flags |= REQ_QUIET;
@@ -1067,10 +1062,11 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
 static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
 					sector_t block)
 {
-	ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, "
-		      "rq->cmd_type: 0x%x, block: %llu\n",
-		      __func__, rq->cmd[0], rq->cmd_type,
-		      (unsigned long long)block);
+	ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu",
+				  rq->cmd[0], (unsigned long long)block);
+
+	if (drive->debug_mask & IDE_DBG_RQ)
+		blk_dump_rq_flags(rq, "ide_cd_do_request");
 
 	if (blk_fs_request(rq)) {
 		if (cdrom_start_rw(drive, rq) == ide_stopped)
@@ -1119,7 +1115,7 @@ int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
 	struct cdrom_device_info *cdi = &info->devinfo;
 	unsigned char cmd[BLK_MAX_CDB];
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	memset(cmd, 0, BLK_MAX_CDB);
 	cmd[0] = GPCMD_TEST_UNIT_READY;
@@ -1147,7 +1143,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
 	unsigned len = sizeof(capbuf);
 	u32 blocklen;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	memset(cmd, 0, BLK_MAX_CDB);
 	cmd[0] = GPCMD_READ_CDVD_CAPACITY;
@@ -1179,8 +1175,8 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
 	*capacity = 1 + be32_to_cpu(capbuf.lba);
 	*sectors_per_frame = blocklen >> SECTOR_BITS;
 
-	ide_debug_log(IDE_DBG_PROBE, "%s: cap: %lu, sectors_per_frame: %lu\n",
-		      __func__, *capacity, *sectors_per_frame);
+	ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu",
+				     *capacity, *sectors_per_frame);
 
 	return 0;
 }
@@ -1191,7 +1187,7 @@ static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
 {
 	unsigned char cmd[BLK_MAX_CDB];
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	memset(cmd, 0, BLK_MAX_CDB);
 
@@ -1221,7 +1217,7 @@ int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
 	long last_written;
 	unsigned long sectors_per_frame = SECTORS_PER_FRAME;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	if (toc == NULL) {
 		/* try to allocate space */
@@ -1383,7 +1379,7 @@ int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf)
 	struct packet_command cgc;
 	int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0)
 		size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;
@@ -1403,7 +1399,7 @@ void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
 	struct cdrom_info *cd = drive->driver_data;
 	u16 curspeed, maxspeed;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) {
 		curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]);
@@ -1413,8 +1409,8 @@ void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
 		maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]);
 	}
 
-	ide_debug_log(IDE_DBG_PROBE, "%s: curspeed: %u, maxspeed: %u\n",
-		      __func__, curspeed, maxspeed);
+	ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u",
+				     curspeed, maxspeed);
 
 	cd->current_speed = (curspeed + (176/2)) / 176;
 	cd->max_speed = (maxspeed + (176/2)) / 176;
@@ -1448,7 +1444,7 @@ static int ide_cdrom_register(ide_drive_t *drive, int nslots)
 	struct cdrom_info *info = drive->driver_data;
 	struct cdrom_device_info *devinfo = &info->devinfo;
 
-	ide_debug_log(IDE_DBG_PROBE, "Call %s, nslots: %d\n", __func__, nslots);
+	ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots);
 
 	devinfo->ops = &ide_cdrom_dops;
 	devinfo->speed = info->current_speed;
@@ -1471,9 +1467,8 @@ static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
 	mechtype_t mechtype;
 	int nslots = 1;
 
-	ide_debug_log(IDE_DBG_PROBE, "Call %s, drive->media: 0x%x, "
-		      "drive->atapi_flags: 0x%lx\n", __func__, drive->media,
-		      drive->atapi_flags);
+	ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx",
+				     drive->media, drive->atapi_flags);
 
 	cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R |
 		     CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO |
@@ -1754,7 +1749,7 @@ static int ide_cdrom_setup(ide_drive_t *drive)
 	char *fw_rev = (char *)&id[ATA_ID_FW_REV];
 	int nslots;
 
-	ide_debug_log(IDE_DBG_PROBE, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_PROBE, "enter");
 
 	blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn);
 	blk_queue_dma_alignment(drive->queue, 31);
@@ -1797,7 +1792,7 @@ static void ide_cd_remove(ide_drive_t *drive)
 {
 	struct cdrom_info *info = drive->driver_data;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	ide_proc_unregister_driver(drive, info->driver);
 	device_del(&info->dev);
@@ -1815,7 +1810,7 @@ static void ide_cd_release(struct device *dev)
 	ide_drive_t *drive = info->drive;
 	struct gendisk *g = info->disk;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	kfree(info->toc);
 	if (devinfo->handle == drive)
@@ -1974,9 +1969,8 @@ static int ide_cd_probe(ide_drive_t *drive)
 	struct gendisk *g;
 	struct request_sense sense;
 
-	ide_debug_log(IDE_DBG_PROBE, "Call %s, drive->driver_req: %s, "
-		      "drive->media: 0x%x\n", __func__, drive->driver_req,
-		      drive->media);
+	ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x",
+				     drive->driver_req, drive->media);
 
 	if (!strstr("ide-cdrom", drive->driver_req))
 		goto failed;
diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h
index c878bfcf1116..3b77dd735088 100644
--- a/drivers/ide/ide-cd.h
+++ b/drivers/ide/ide-cd.h
@@ -11,7 +11,7 @@
 #define IDECD_DEBUG_LOG		0
 
 #if IDECD_DEBUG_LOG
-#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
+#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, ## args)
 #else
 #define ide_debug_log(lvl, fmt, args...) do {} while (0)
 #endif
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 317ec62c33d4..d1a79e8e0d69 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -74,7 +74,7 @@ static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
 	struct request *rq = drive->hwif->rq;
 	int error;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	switch (uptodate) {
 	case 0:
@@ -121,7 +121,7 @@ static void ide_floppy_callback(ide_drive_t *drive, int dsc)
 	struct ide_atapi_pc *pc = drive->pc;
 	int uptodate = pc->error ? 0 : 1;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	if (floppy->failed_pc == pc)
 		floppy->failed_pc = NULL;
@@ -140,11 +140,11 @@ static void ide_floppy_callback(ide_drive_t *drive, int dsc)
 				(u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
 
 			if (floppy->failed_pc)
-				ide_debug_log(IDE_DBG_PC, "pc = %x, ",
+				ide_debug_log(IDE_DBG_PC, "pc = %x",
 					      floppy->failed_pc->c[0]);
 
 			ide_debug_log(IDE_DBG_SENSE, "sense key = %x, asc = %x,"
-				      "ascq = %x\n", floppy->sense_key,
+				      "ascq = %x", floppy->sense_key,
 				      floppy->asc, floppy->ascq);
 		} else
 			printk(KERN_ERR PFX "Error in REQUEST SENSE itself - "
@@ -193,7 +193,7 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
 		return ide_stopped;
 	}
 
-	ide_debug_log(IDE_DBG_FUNC, "%s: Retry #%d\n", __func__, pc->retries);
+	ide_debug_log(IDE_DBG_FUNC, "retry #%d", pc->retries);
 
 	pc->retries++;
 
@@ -242,8 +242,7 @@ static void idefloppy_create_rw_cmd(ide_drive_t *drive,
 	int blocks = rq->nr_sectors / floppy->bs_factor;
 	int cmd = rq_data_dir(rq);
 
-	ide_debug_log(IDE_DBG_FUNC, "%s: block: %d, blocks: %d\n", __func__,
-		      block, blocks);
+	ide_debug_log(IDE_DBG_FUNC, "block: %d, blocks: %d", block, blocks);
 
 	ide_init_pc(pc);
 	pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10;
@@ -287,15 +286,10 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_atapi_pc *pc;
 
-	ide_debug_log(IDE_DBG_FUNC, "%s: dev: %s, cmd: 0x%x, cmd_type: %x, "
-		      "errors: %d\n",
-		      __func__, rq->rq_disk ? rq->rq_disk->disk_name : "?",
-		      rq->cmd[0], rq->cmd_type, rq->errors);
-
-	ide_debug_log(IDE_DBG_FUNC, "%s: sector: %ld, nr_sectors: %ld, "
-		      "current_nr_sectors: %d\n",
-		      __func__, (long)rq->sector, rq->nr_sectors,
-		      rq->current_nr_sectors);
+	if (drive->debug_mask & IDE_DBG_RQ)
+		blk_dump_rq_flags(rq, (rq->rq_disk
+					? rq->rq_disk->disk_name
+					: "dev?"));
 
 	if (rq->errors >= ERROR_MAX) {
 		if (floppy->failed_pc)
@@ -438,8 +432,9 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
 		length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]);
 
 		ide_debug_log(IDE_DBG_PROBE, "Descriptor %d: %dkB, %d blocks, "
-			      "%d sector size\n",
-			      i, blocks * length / 1024, blocks, length);
+					     "%d sector size",
+					     i, blocks * length / 1024,
+					     blocks, length);
 
 		if (i)
 			continue;
@@ -495,8 +490,8 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
 				"in drive\n", drive->name);
 			break;
 		}
-		ide_debug_log(IDE_DBG_PROBE, "Descriptor 0 Code: %d\n",
-			      pc.buf[desc_start + 4] & 0x03);
+		ide_debug_log(IDE_DBG_PROBE, "Descriptor 0 Code: %d",
+					     pc.buf[desc_start + 4] & 0x03);
 	}
 
 	/* Clik! disk does not support get_flexible_disk_page */
diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
index 047109419902..c51a35093ae2 100644
--- a/drivers/ide/ide-gd.c
+++ b/drivers/ide/ide-gd.c
@@ -182,7 +182,7 @@ static int ide_gd_open(struct block_device *bdev, fmode_t mode)
 
 	drive = idkp->drive;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	idkp->openers++;
 
@@ -232,7 +232,7 @@ static int ide_gd_release(struct gendisk *disk, fmode_t mode)
 	struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj);
 	ide_drive_t *drive = idkp->drive;
 
-	ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+	ide_debug_log(IDE_DBG_FUNC, "enter");
 
 	if (idkp->openers == 1)
 		drive->disk_ops->flush(drive);
diff --git a/drivers/ide/ide-gd.h b/drivers/ide/ide-gd.h
index b604bdd318a1..70b43765327d 100644
--- a/drivers/ide/ide-gd.h
+++ b/drivers/ide/ide-gd.h
@@ -8,7 +8,7 @@
 #define IDE_GD_DEBUG_LOG	0
 
 #if IDE_GD_DEBUG_LOG
-#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
+#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, ## args)
 #else
 #define ide_debug_log(lvl, fmt, args...) do {} while (0)
 #endif
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 854eba8b2ba3..9a386501b9c1 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1045,10 +1045,11 @@ enum {
 };
 
 /* DRV_NAME has to be defined in the driver before using the macro below */
-#define __ide_debug_log(lvl, fmt, args...)			\
-{								\
-	if (unlikely(drive->debug_mask & lvl))			\
-		printk(KERN_INFO DRV_NAME ": " fmt, ## args);	\
+#define __ide_debug_log(lvl, fmt, args...)				\
+{									\
+	if (unlikely(drive->debug_mask & lvl))				\
+		printk(KERN_INFO DRV_NAME ": %s: " fmt "\n",		\
+					  __func__, ## args);		\
 }
 
 /*
-- 
cgit v1.2.3


From d15a613ba01ff2b209ecad7a38ccbb23b3b06c92 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:21 +0100
Subject: ide: remove IDE_ARCH_INTR (v2)

This micro-optimization is not worth it.  Just always check for
existence of ->ack_intr method in ide_intr() and ide_timer_expiry().

v2:
Fix brown-paper-bag bug spotted by David D. Kilzer.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitz@debian.org>
Cc: "David D. Kilzer" <ddkilzer@kilzer.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 arch/m68k/include/asm/ide.h | 3 ---
 drivers/ide/ide-io.c        | 5 +++--
 include/linux/ide.h         | 5 -----
 3 files changed, 3 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/arch/m68k/include/asm/ide.h b/arch/m68k/include/asm/ide.h
index b996a3c8cff5..9f95f06eebe2 100644
--- a/arch/m68k/include/asm/ide.h
+++ b/arch/m68k/include/asm/ide.h
@@ -123,8 +123,5 @@ ide_get_lock(irq_handler_t handler, void *data)
 }
 #endif /* CONFIG_BLK_DEV_FALCON_IDE */
 
-#define IDE_ARCH_ACK_INTR
-#define ide_ack_intr(hwif)	((hwif)->ack_intr ? (hwif)->ack_intr(hwif) : 1)
-
 #endif /* __KERNEL__ */
 #endif /* _M68K_IDE_H */
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 2e92497b58aa..e85060164203 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -739,7 +739,8 @@ void ide_timer_expiry (unsigned long data)
 		} else if (drive_is_ready(drive)) {
 			if (drive->waiting_for_dma)
 				hwif->dma_ops->dma_lost_irq(drive);
-			(void)ide_ack_intr(hwif);
+			if (hwif->ack_intr)
+				hwif->ack_intr(hwif);
 			printk(KERN_WARNING "%s: lost interrupt\n",
 				drive->name);
 			startstop = handler(drive);
@@ -854,7 +855,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
 
 	spin_lock_irqsave(&hwif->lock, flags);
 
-	if (!ide_ack_intr(hwif))
+	if (hwif->ack_intr && hwif->ack_intr(hwif) == 0)
 		goto out;
 
 	handler = hwif->handler;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 9a386501b9c1..cda80b5779a4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -202,11 +202,6 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
 
 #define MAX_HWIFS	10
 
-/* Currently only m68k, apus and m8xx need it */
-#ifndef IDE_ARCH_ACK_INTR
-# define ide_ack_intr(hwif) (1)
-#endif
-
 /* Currently only Atari needs it */
 #ifndef IDE_ARCH_LOCK
 # define ide_release_lock()			do {} while (0)
-- 
cgit v1.2.3


From e354c1d8033d97a97a38a1b2cffa1bc285b92ad4 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:22 +0100
Subject: ide: remove IDE_ARCH_LOCK (v2)

* Add ->{get,release}_lock methods to struct ide_port_info
  and struct ide_host.

* Convert core IDE code, m68k IDE code and falconide support to use
  ->{get,release}_lock methods instead of ide_{get,release}_lock().

* Remove IDE_ARCH_LOCK.

v2:
* Build fix from Geert updating ide_{get,release}_lock() callers in
  falconide.c.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 arch/m68k/include/asm/ide.h | 36 ------------------------------------
 drivers/ide/falconide.c     | 29 +++++++++++++++++++++++++----
 drivers/ide/ide-io.c        |  8 ++++----
 drivers/ide/ide-probe.c     |  2 ++
 include/linux/ide.h         | 17 +++++++++++------
 5 files changed, 42 insertions(+), 50 deletions(-)

(limited to 'include')

diff --git a/arch/m68k/include/asm/ide.h b/arch/m68k/include/asm/ide.h
index 9f95f06eebe2..4e6e77759f88 100644
--- a/arch/m68k/include/asm/ide.h
+++ b/arch/m68k/include/asm/ide.h
@@ -36,11 +36,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 
-#ifdef CONFIG_ATARI
-#include <linux/interrupt.h>
-#include <asm/atari_stdma.h>
-#endif
-
 #ifdef CONFIG_MAC
 #include <asm/macints.h>
 #endif
@@ -92,36 +87,5 @@
 #define outsw_swapw(port, addr, n)	raw_outsw_swapw((u16 *)port, addr, n)
 #endif
 
-#ifdef CONFIG_BLK_DEV_FALCON_IDE
-#define IDE_ARCH_LOCK
-
-extern int falconide_intr_lock;
-
-static __inline__ void ide_release_lock (void)
-{
-	if (MACH_IS_ATARI) {
-		if (falconide_intr_lock == 0) {
-			printk("ide_release_lock: bug\n");
-			return;
-		}
-		falconide_intr_lock = 0;
-		stdma_release();
-	}
-}
-
-static __inline__ void
-ide_get_lock(irq_handler_t handler, void *data)
-{
-	if (MACH_IS_ATARI) {
-		if (falconide_intr_lock == 0) {
-			if (in_interrupt() > 0)
-				panic( "Falcon IDE hasn't ST-DMA lock in interrupt" );
-			stdma_lock(handler, data);
-			falconide_intr_lock = 1;
-		}
-	}
-}
-#endif /* CONFIG_BLK_DEV_FALCON_IDE */
-
 #endif /* __KERNEL__ */
 #endif /* _M68K_IDE_H */
diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
index a638e952d67a..d4d7ff1a3516 100644
--- a/drivers/ide/falconide.c
+++ b/drivers/ide/falconide.c
@@ -40,8 +40,27 @@
      *  which is shared between several drivers.
      */
 
-int falconide_intr_lock;
-EXPORT_SYMBOL(falconide_intr_lock);
+static int falconide_intr_lock;
+
+static void falconide_release_lock(void)
+{
+	if (falconide_intr_lock == 0) {
+		printk(KERN_ERR "%s: bug\n", __func__);
+		return;
+	}
+	falconide_intr_lock = 0;
+	stdma_release();
+}
+
+static void falconide_get_lock(irq_handler_t handler, void *data)
+{
+	if (falconide_intr_lock == 0) {
+		if (in_interrupt() > 0)
+			panic("Falcon IDE hasn't ST-DMA lock in interrupt");
+		stdma_lock(handler, data);
+		falconide_intr_lock = 1;
+	}
+}
 
 static void falconide_input_data(ide_drive_t *drive, struct request *rq,
 				 void *buf, unsigned int len)
@@ -81,6 +100,8 @@ static const struct ide_tp_ops falconide_tp_ops = {
 };
 
 static const struct ide_port_info falconide_port_info = {
+	.get_lock		= falconide_get_lock,
+	.release_lock		= falconide_release_lock,
 	.tp_ops			= &falconide_tp_ops,
 	.host_flags		= IDE_HFLAG_NO_DMA | IDE_HFLAG_SERIALIZE,
 };
@@ -132,9 +153,9 @@ static int __init falconide_init(void)
 		goto err;
 	}
 
-	ide_get_lock(NULL, NULL);
+	falconide_get_lock(NULL, NULL);
 	rc = ide_host_register(host, &falconide_port_info, hws);
-	ide_release_lock();
+	falconide_release_lock();
 
 	if (rc)
 		goto err_free;
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index e85060164203..030b0ea1a1e1 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -501,8 +501,8 @@ static inline int ide_lock_host(struct ide_host *host, ide_hwif_t *hwif)
 	if (host->host_flags & IDE_HFLAG_SERIALIZE) {
 		rc = test_and_set_bit_lock(IDE_HOST_BUSY, &host->host_busy);
 		if (rc == 0) {
-			/* for atari only */
-			ide_get_lock(ide_intr, hwif);
+			if (host->get_lock)
+				host->get_lock(ide_intr, hwif);
 		}
 	}
 	return rc;
@@ -511,8 +511,8 @@ static inline int ide_lock_host(struct ide_host *host, ide_hwif_t *hwif)
 static inline void ide_unlock_host(struct ide_host *host)
 {
 	if (host->host_flags & IDE_HFLAG_SERIALIZE) {
-		/* for atari only */
-		ide_release_lock();
+		if (host->release_lock)
+			host->release_lock();
 		clear_bit_unlock(IDE_HOST_BUSY, &host->host_busy);
 	}
 }
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index b0510b033d78..a3edbb5d0452 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1325,6 +1325,8 @@ struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws)
 
 	if (d) {
 		host->init_chipset = d->init_chipset;
+		host->get_lock     = d->get_lock;
+		host->release_lock = d->release_lock;
 		host->host_flags = d->host_flags;
 	}
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index cda80b5779a4..b7d95f09cc2e 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -202,12 +202,6 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
 
 #define MAX_HWIFS	10
 
-/* Currently only Atari needs it */
-#ifndef IDE_ARCH_LOCK
-# define ide_release_lock()			do {} while (0)
-# define ide_get_lock(hdlr, data)		do {} while (0)
-#endif /* IDE_ARCH_LOCK */
-
 /*
  * Now for the data we need to maintain per-drive:  ide_drive_t
  */
@@ -845,8 +839,14 @@ struct ide_host {
 	ide_hwif_t	*ports[MAX_HOST_PORTS + 1];
 	unsigned int	n_ports;
 	struct device	*dev[2];
+
 	int		(*init_chipset)(struct pci_dev *);
+
+	void		(*get_lock)(irq_handler_t, void *);
+	void		(*release_lock)(void);
+
 	irq_handler_t	irq_handler;
+
 	unsigned long	host_flags;
 	void		*host_priv;
 	ide_hwif_t	*cur_port;	/* for hosts requiring serialization */
@@ -1358,7 +1358,12 @@ enum {
 
 struct ide_port_info {
 	char			*name;
+
 	int			(*init_chipset)(struct pci_dev *);
+
+	void			(*get_lock)(irq_handler_t, void *);
+	void			(*release_lock)(void);
+
 	void			(*init_iops)(ide_hwif_t *);
 	void                    (*init_hwif)(ide_hwif_t *);
 	int			(*init_dma)(ide_hwif_t *,
-- 
cgit v1.2.3


From 15a453a955f89f6545118770c669b52e925368bd Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:26 +0100
Subject: ide: include <asm/ide.h> only when needed

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-io-std.c | 7 +++++++
 drivers/ide/tx4938ide.c  | 2 ++
 drivers/ide/tx4939ide.c  | 2 ++
 include/linux/ide.h      | 7 -------
 4 files changed, 11 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c
index 45b43dd49cda..9a8da6744d93 100644
--- a/drivers/ide/ide-io-std.c
+++ b/drivers/ide/ide-io-std.c
@@ -2,6 +2,13 @@
 #include <linux/kernel.h>
 #include <linux/ide.h>
 
+#if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \
+    defined(CONFIG_PARISC) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
+#include <asm/ide.h>
+#else
+#include <asm-generic/ide_iops.h>
+#endif
+
 /*
  *	Conventional PIO operations for ATA devices
  */
diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c
index d9095345f7ca..efade9e898b3 100644
--- a/drivers/ide/tx4938ide.c
+++ b/drivers/ide/tx4938ide.c
@@ -15,6 +15,8 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+
+#include <asm/ide.h>
 #include <asm/txx9/tx4938.h>
 
 static void tx4938ide_tune_ebusc(unsigned int ebus_ch,
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 40b0812a045c..fb037a5e70b3 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -18,6 +18,8 @@
 #include <linux/io.h>
 #include <linux/scatterlist.h>
 
+#include <asm/ide.h>
+
 #define MODNAME	"tx4939ide"
 
 /* ATA Shadow Registers (8-bit except for Data which is 16-bit) */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index b7d95f09cc2e..47878719c56b 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -193,13 +193,6 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
 	hw->io_ports.ctl_addr = ctl_addr;
 }
 
-#if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \
-    defined(CONFIG_PARISC) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
-#include <asm/ide.h>
-#else
-#include <asm-generic/ide_iops.h>
-#endif
-
 #define MAX_HWIFS	10
 
 /*
-- 
cgit v1.2.3


From 69197ad70ef6b854988299c1377864f9755cd03d Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:26 +0100
Subject: ide: fix memleak on failure in probe_for_drive()

Always free drive->id in probe_for_drive() if device is not present.

While at it:
- remove dead IDE_DFLAG_DEAD flag
- remove superfluous IDE_DFLAG_PRESENT check

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-probe.c | 22 +++++++++-------------
 include/linux/ide.h     |  2 --
 2 files changed, 9 insertions(+), 15 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index a3edbb5d0452..4b00945cf7d1 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -228,15 +228,9 @@ static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id)
 	m[ATA_ID_PROD_LEN - 1] = '\0';
 
 	if (strstr(m, "E X A B Y T E N E S T"))
-		goto err_misc;
-
-	drive->dev_flags |= IDE_DFLAG_PRESENT;
-	drive->dev_flags &= ~IDE_DFLAG_DEAD;
-
-	return;
-err_misc:
-	kfree(id);
-	drive->dev_flags &= ~IDE_DFLAG_PRESENT;
+		drive->dev_flags &= ~IDE_DFLAG_PRESENT;
+	else
+		drive->dev_flags |= IDE_DFLAG_PRESENT;
 }
 
 /**
@@ -505,8 +499,7 @@ static u8 probe_for_drive(ide_drive_t *drive)
 		}
 
 		if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-			/* drive not found */
-			return 0;
+			goto out_free;
 
 		/* identification failed? */
 		if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
@@ -530,7 +523,7 @@ static u8 probe_for_drive(ide_drive_t *drive)
 	}
 
 	if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-		return 0;
+		goto out_free;
 
 	/* The drive wasn't being helpful. Add generic info only */
 	if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
@@ -543,7 +536,10 @@ static u8 probe_for_drive(ide_drive_t *drive)
 		ide_disk_init_mult_count(drive);
 	}
 
-	return !!(drive->dev_flags & IDE_DFLAG_PRESENT);
+	return 1;
+out_free:
+	kfree(drive->id);
+	return 0;
 }
 
 static void hwif_release_dev(struct device *dev)
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 47878719c56b..ab8ee4f32f52 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -494,8 +494,6 @@ enum {
 	IDE_DFLAG_NICE1			= (1 << 5),
 	/* device is physically present */
 	IDE_DFLAG_PRESENT		= (1 << 6),
-	/* device ejected hint */
-	IDE_DFLAG_DEAD			= (1 << 7),
 	/* id read from device (synthetic if not set) */
 	IDE_DFLAG_ID_READ		= (1 << 8),
 	IDE_DFLAG_NOPROBE		= (1 << 9),
-- 
cgit v1.2.3


From 255115fb35f80735c21a1cbe9809e9795a3af26e Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:27 +0100
Subject: ide: allow host drivers to specify IRQ flags

* Add ->irq_flags field to struct ide_port_info and struct ide_host.

* Update host drivers and IDE PCI code to use ->irq_flags field.

* Convert init_irq() and ide_intr() to use host->irq_flags.

This fixes handling of shared IRQs for non-PCI hosts
and removes ugly ifdeffery from core IDE code.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/buddha.c    |  1 +
 drivers/ide/delkin_cb.c |  1 +
 drivers/ide/falconide.c |  1 +
 drivers/ide/gayle.c     |  1 +
 drivers/ide/ide-cs.c    |  1 +
 drivers/ide/ide-io.c    | 15 ++++-----------
 drivers/ide/ide-probe.c | 13 +++----------
 drivers/ide/macide.c    |  1 +
 drivers/ide/q40ide.c    |  1 +
 drivers/ide/scc_pata.c  |  1 +
 drivers/ide/setup-pci.c |  4 ++++
 drivers/ide/sgiioc4.c   |  1 +
 include/linux/ide.h     |  6 ++++++
 13 files changed, 26 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/buddha.c b/drivers/ide/buddha.c
index 606c3320fa58..d028f8864bc1 100644
--- a/drivers/ide/buddha.c
+++ b/drivers/ide/buddha.c
@@ -145,6 +145,7 @@ static void __init buddha_setup_ports(hw_regs_t *hw, unsigned long base,
 
 static const struct ide_port_info buddha_port_info = {
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
+	.irq_flags		= IRQF_SHARED,
 };
 
     /*
diff --git a/drivers/ide/delkin_cb.c b/drivers/ide/delkin_cb.c
index bacb1194c9c9..f153b95619bb 100644
--- a/drivers/ide/delkin_cb.c
+++ b/drivers/ide/delkin_cb.c
@@ -66,6 +66,7 @@ static const struct ide_port_info delkin_cb_port_info = {
 	.port_ops		= &delkin_cb_port_ops,
 	.host_flags		= IDE_HFLAG_IO_32BIT | IDE_HFLAG_UNMASK_IRQS |
 				  IDE_HFLAG_NO_DMA,
+	.irq_flags		= IRQF_SHARED,
 	.init_chipset		= delkin_cb_init_chipset,
 };
 
diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
index bb0c86e976e4..6085feb1fae8 100644
--- a/drivers/ide/falconide.c
+++ b/drivers/ide/falconide.c
@@ -105,6 +105,7 @@ static const struct ide_port_info falconide_port_info = {
 	.tp_ops			= &falconide_tp_ops,
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
 				  IDE_HFLAG_NO_DMA,
+	.irq_flags		= IRQF_SHARED,
 };
 
 static void __init falconide_setup_ports(hw_regs_t *hw)
diff --git a/drivers/ide/gayle.c b/drivers/ide/gayle.c
index dce01765adbc..dc778251cb05 100644
--- a/drivers/ide/gayle.c
+++ b/drivers/ide/gayle.c
@@ -120,6 +120,7 @@ static void __init gayle_setup_ports(hw_regs_t *hw, unsigned long base,
 static const struct ide_port_info gayle_port_info = {
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
 				  IDE_HFLAG_NO_DMA,
+	.irq_flags		= IRQF_SHARED,
 };
 
     /*
diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c
index f50210fe558f..9e47f3529d55 100644
--- a/drivers/ide/ide-cs.c
+++ b/drivers/ide/ide-cs.c
@@ -154,6 +154,7 @@ static const struct ide_port_ops idecs_port_ops = {
 static const struct ide_port_info idecs_port_info = {
 	.port_ops		= &idecs_port_ops,
 	.host_flags		= IDE_HFLAG_NO_DMA,
+	.irq_flags		= IRQF_SHARED,
 };
 
 static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 030b0ea1a1e1..7007c48e27ae 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -841,6 +841,7 @@ static void unexpected_intr(int irq, ide_hwif_t *hwif)
 irqreturn_t ide_intr (int irq, void *dev_id)
 {
 	ide_hwif_t *hwif = (ide_hwif_t *)dev_id;
+	struct ide_host *host = hwif->host;
 	ide_drive_t *uninitialized_var(drive);
 	ide_handler_t *handler;
 	unsigned long flags;
@@ -848,8 +849,8 @@ irqreturn_t ide_intr (int irq, void *dev_id)
 	irqreturn_t irq_ret = IRQ_NONE;
 	int plug_device = 0;
 
-	if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE) {
-		if (hwif != hwif->host->cur_port)
+	if (host->host_flags & IDE_HFLAG_SERIALIZE) {
+		if (hwif != host->cur_port)
 			goto out_early;
 	}
 
@@ -872,27 +873,19 @@ irqreturn_t ide_intr (int irq, void *dev_id)
 		 *
 		 * For PCI, we cannot tell the difference,
 		 * so in that case we just ignore it and hope it goes away.
-		 *
-		 * FIXME: unexpected_intr should be hwif-> then we can
-		 * remove all the ifdef PCI crap
 		 */
-#ifdef CONFIG_BLK_DEV_IDEPCI
-		if (hwif->chipset != ide_pci)
-#endif	/* CONFIG_BLK_DEV_IDEPCI */
-		{
+		if ((host->irq_flags & IRQF_SHARED) == 0) {
 			/*
 			 * Probably not a shared PCI interrupt,
 			 * so we can safely try to do something about it:
 			 */
 			unexpected_intr(irq, hwif);
-#ifdef CONFIG_BLK_DEV_IDEPCI
 		} else {
 			/*
 			 * Whack the status register, just in case
 			 * we have a leftover pending IRQ.
 			 */
 			(void)hwif->tp_ops->read_status(hwif);
-#endif /* CONFIG_BLK_DEV_IDEPCI */
 		}
 		goto out;
 	}
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 4b00945cf7d1..f3a56595eb75 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -837,20 +837,13 @@ static int ide_port_setup_devices(ide_hwif_t *hwif)
 static int init_irq (ide_hwif_t *hwif)
 {
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	irq_handler_t irq_handler;
-	int sa = 0;
+	struct ide_host *host = hwif->host;
+	irq_handler_t irq_handler = host->irq_handler;
+	int sa = host->irq_flags;
 
-	irq_handler = hwif->host->irq_handler;
 	if (irq_handler == NULL)
 		irq_handler = ide_intr;
 
-#if defined(__mc68000__)
-	sa = IRQF_SHARED;
-#endif /* __mc68000__ */
-
-	if (hwif->chipset == ide_pci)
-		sa = IRQF_SHARED;
-
 	if (io_ports->ctl_addr)
 		hwif->tp_ops->set_irq(hwif, 1);
 
diff --git a/drivers/ide/macide.c b/drivers/ide/macide.c
index 56112ee9f5a8..4b1718e83283 100644
--- a/drivers/ide/macide.c
+++ b/drivers/ide/macide.c
@@ -82,6 +82,7 @@ static void __init macide_setup_ports(hw_regs_t *hw, unsigned long base,
 
 static const struct ide_port_info macide_port_info = {
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
+	.irq_flags		= IRQF_SHARED,
 };
 
 static const char *mac_ide_name[] =
diff --git a/drivers/ide/q40ide.c b/drivers/ide/q40ide.c
index ebd576df2d84..32f669d656a6 100644
--- a/drivers/ide/q40ide.c
+++ b/drivers/ide/q40ide.c
@@ -112,6 +112,7 @@ static const struct ide_tp_ops q40ide_tp_ops = {
 static const struct ide_port_info q40ide_port_info = {
 	.tp_ops			= &q40ide_tp_ops,
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
+	.irq_flags		= IRQF_SHARED,
 };
 
 /* 
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index 540bc842f3ad..ae965da5dde0 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -891,6 +891,7 @@ static const struct ide_port_info scc_chipset __devinitdata = {
 	.port_ops	= &scc_port_ops,
 	.dma_ops	= &scc_dma_ops,
 	.host_flags	= IDE_HFLAG_SINGLE,
+	.irq_flags	= IRQF_SHARED,
 	.pio_mask	= ATA_PIO4,
 };
 
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 24bc884826fc..a19dbccd7617 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -558,6 +558,8 @@ int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d,
 
 	host->host_priv = priv;
 
+	host->irq_flags = IRQF_SHARED;
+
 	pci_set_drvdata(dev, host);
 
 	ret = do_ide_setup_pci_device(dev, d, 1);
@@ -606,6 +608,8 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
 
 	host->host_priv = priv;
 
+	host->irq_flags = IRQF_SHARED;
+
 	pci_set_drvdata(pdev[0], host);
 	pci_set_drvdata(pdev[1], host);
 
diff --git a/drivers/ide/sgiioc4.c b/drivers/ide/sgiioc4.c
index fdb9d7037694..1cffe70f385d 100644
--- a/drivers/ide/sgiioc4.c
+++ b/drivers/ide/sgiioc4.c
@@ -557,6 +557,7 @@ static const struct ide_port_info sgiioc4_port_info __devinitconst = {
 	.port_ops		= &sgiioc4_port_ops,
 	.dma_ops		= &sgiioc4_dma_ops,
 	.host_flags		= IDE_HFLAG_MMIO,
+	.irq_flags		= IRQF_SHARED,
 	.mwdma_mask		= ATA_MWDMA2_ONLY,
 };
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index ab8ee4f32f52..901d323c7bbe 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -839,6 +839,9 @@ struct ide_host {
 	irq_handler_t	irq_handler;
 
 	unsigned long	host_flags;
+
+	int		irq_flags;
+
 	void		*host_priv;
 	ide_hwif_t	*cur_port;	/* for hosts requiring serialization */
 
@@ -1371,6 +1374,9 @@ struct ide_port_info {
 	u16			max_sectors;	/* if < than the default one */
 
 	u32			host_flags;
+
+	int			irq_flags;
+
 	u8			pio_mask;
 	u8			swdma_mask;
 	u8			mwdma_mask;
-- 
cgit v1.2.3


From 2787cb8ae5c68a6945eb82ccf96b5f2c4f238323 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:28 +0100
Subject: ide: add IDE_HFLAG_DTC2278 host flag

Add IDE_HFLAG_DTC2278 host flag and use it instead of ide_dtc2278
chipset type in ide_init_port().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/dtc2278.c   | 3 ++-
 drivers/ide/ide-probe.c | 2 +-
 include/linux/ide.h     | 2 ++
 3 files changed, 5 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/dtc2278.c b/drivers/ide/dtc2278.c
index 689b2e493413..c6b138122981 100644
--- a/drivers/ide/dtc2278.c
+++ b/drivers/ide/dtc2278.c
@@ -100,7 +100,8 @@ static const struct ide_port_info dtc2278_port_info __initdata = {
 				  IDE_HFLAG_IO_32BIT |
 				  /* disallow ->io_32bit changes */
 				  IDE_HFLAG_NO_IO_32BIT |
-				  IDE_HFLAG_NO_DMA,
+				  IDE_HFLAG_NO_DMA |
+				  IDE_HFLAG_DTC2278,
 	.pio_mask		= ATA_PIO4,
 };
 
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 75b79cc96339..62270f474681 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1061,7 +1061,7 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
 		hwif->tp_ops = d->tp_ops;
 
 	/* ->set_pio_mode for DTC2278 is currently limited to port 0 */
-	if (hwif->chipset != ide_dtc2278 || hwif->channel == 0)
+	if ((hwif->host_flags & IDE_HFLAG_DTC2278) == 0 || hwif->channel == 0)
 		hwif->port_ops = d->port_ops;
 
 	hwif->swdma_mask = d->swdma_mask;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 901d323c7bbe..732a05f3de08 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1325,6 +1325,8 @@ enum {
 	IDE_HFLAG_ERROR_STOPS_FIFO	= (1 << 19),
 	/* serialize ports */
 	IDE_HFLAG_SERIALIZE		= (1 << 20),
+	/* host is DTC2278 */
+	IDE_HFLAG_DTC2278		= (1 << 21),
 	/* host is TRM290 */
 	IDE_HFLAG_TRM290		= (1 << 23),
 	/* use 32-bit I/O ops */
-- 
cgit v1.2.3


From c094ea0774d6881598da430ea0916a597162f8df Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:28 +0100
Subject: ide: add IDE_HFLAG_4DRIVES host flag

Add IDE_HFLAG_4DRIVES host flag and use it instead of ide_4drives
chipset type in ide_init_port().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-4drives.c | 3 ++-
 drivers/ide/ide-probe.c   | 4 ++--
 include/linux/ide.h       | 2 ++
 3 files changed, 6 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-4drives.c b/drivers/ide/ide-4drives.c
index 9e85b1ec9607..78aca75a2c48 100644
--- a/drivers/ide/ide-4drives.c
+++ b/drivers/ide/ide-4drives.c
@@ -23,7 +23,8 @@ static const struct ide_port_ops ide_4drives_port_ops = {
 
 static const struct ide_port_info ide_4drives_port_info = {
 	.port_ops		= &ide_4drives_port_ops,
-	.host_flags		= IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA,
+	.host_flags		= IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA |
+				  IDE_HFLAG_4DRIVES,
 };
 
 static int __init ide_4drives_init(void)
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 62270f474681..335322f40c5a 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1381,8 +1381,8 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
 		if (ide_probe_port(hwif) == 0)
 			hwif->present = 1;
 
-		if (hwif->chipset != ide_4drives || !hwif->mate ||
-		    !hwif->mate->present) {
+		if ((hwif->host_flags & IDE_HFLAG_4DRIVES) == 0 ||
+		    hwif->mate == NULL || hwif->mate->present == 0) {
 			if (ide_register_port(hwif)) {
 				ide_disable_port(hwif);
 				continue;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 732a05f3de08..3d4ba8e95d4a 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1327,6 +1327,8 @@ enum {
 	IDE_HFLAG_SERIALIZE		= (1 << 20),
 	/* host is DTC2278 */
 	IDE_HFLAG_DTC2278		= (1 << 21),
+	/* 4 devices on a single set of I/O ports */
+	IDE_HFLAG_4DRIVES		= (1 << 22),
 	/* host is TRM290 */
 	IDE_HFLAG_TRM290		= (1 << 23),
 	/* use 32-bit I/O ops */
-- 
cgit v1.2.3


From 19710d25d50ae0be05eebe4231ed8918b1092d82 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:28 +0100
Subject: ide: add "flagged" taskfile flags to struct ide_taskfile (v2)

* Add ->ftf_flags field to struct ide_taskfile
  and convert flags for TASKFILE ioctl to use it.

* Rename "flagged" taskfile flags:
  - IDE_TFLAG_FLAGGED -> IDE_FTFLAG_FLAGGED
  - IDE_TFLAG_FLAGGED_SET_IN_FLAGS -> IDE_FTFLAG_SET_IN_FLAGS
  - IDE_TFLAG_{OUT,IN}_DATA -> IDE_FTFLAG_{OUT,IN}_DATA

v2:
* Remember to fully update ide-h8300.c, scc_pata.c and tx493{8,9}ide.c
  (thanks to Stephen Rothwell for noticing).

There should be no functional changes caused by this patch.

Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/at91_ide.c     |  6 ++---
 drivers/ide/ide-h8300.c    |  6 ++---
 drivers/ide/ide-io-std.c   |  6 ++---
 drivers/ide/ide-taskfile.c | 12 ++++-----
 drivers/ide/ns87415.c      |  2 +-
 drivers/ide/scc_pata.c     |  6 ++---
 drivers/ide/tx4938ide.c    |  6 ++---
 drivers/ide/tx4939ide.c    |  6 ++---
 include/linux/ide.h        | 66 ++++++++++++++++++++++++----------------------
 9 files changed, 60 insertions(+), 56 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c
index 4bd46d2d6b64..6eabf9e31290 100644
--- a/drivers/ide/at91_ide.c
+++ b/drivers/ide/at91_ide.c
@@ -192,10 +192,10 @@ static void at91_ide_tf_load(ide_drive_t *drive, ide_task_t *task)
 	struct ide_taskfile *tf = &task->tf;
 	u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
 
-	if (task->tf_flags & IDE_TFLAG_FLAGGED)
+	if (task->tf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
+	if (task->tf_flags & IDE_FTFLAG_OUT_DATA) {
 		u16 data = (tf->hob_data << 8) | tf->data;
 
 		at91_ide_output_data(drive, NULL, &data, 2);
@@ -233,7 +233,7 @@ static void at91_ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 	struct ide_io_ports *io_ports = &hwif->io_ports;
 	struct ide_taskfile *tf = &task->tf;
 
-	if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+	if (task->tf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data;
 
 		at91_ide_input_data(drive, NULL, &data, 2);
diff --git a/drivers/ide/ide-h8300.c b/drivers/ide/ide-h8300.c
index 9270d3255ee0..11e937485bff 100644
--- a/drivers/ide/ide-h8300.c
+++ b/drivers/ide/ide-h8300.c
@@ -51,10 +51,10 @@ static void h8300_tf_load(ide_drive_t *drive, ide_task_t *task)
 	struct ide_taskfile *tf = &task->tf;
 	u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
 
-	if (task->tf_flags & IDE_TFLAG_FLAGGED)
+	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DATA)
+	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA)
 		mm_outw((tf->hob_data << 8) | tf->data, io_ports->data_addr);
 
 	if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
@@ -90,7 +90,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task)
 	struct ide_io_ports *io_ports = &hwif->io_ports;
 	struct ide_taskfile *tf = &task->tf;
 
-	if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data = mm_inw(io_ports->data_addr);
 
 		tf->data = data & 0xff;
diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c
index 9a8da6744d93..cad59f0bfbce 100644
--- a/drivers/ide/ide-io-std.c
+++ b/drivers/ide/ide-io-std.c
@@ -96,10 +96,10 @@ void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
 	else
 		tf_outb = ide_outb;
 
-	if (task->tf_flags & IDE_TFLAG_FLAGGED)
+	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA) {
 		u16 data = (tf->hob_data << 8) | tf->data;
 
 		if (mmio)
@@ -153,7 +153,7 @@ void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 		tf_inb  = ide_inb;
 	}
 
-	if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data;
 
 		if (mmio)
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 2461245820b7..02240a3ee0fb 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -73,8 +73,8 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
 		}
 	}
 
-	if (task->tf_flags & IDE_TFLAG_FLAGGED)
-		task->tf_flags |= IDE_TFLAG_FLAGGED_SET_IN_FLAGS;
+	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
+		task->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
 
 	memcpy(&hwif->task, task, sizeof(*task));
 
@@ -551,10 +551,10 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 		args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_IN_HOB);
 
 	if (req_task->out_flags.all) {
-		args.tf_flags |= IDE_TFLAG_FLAGGED;
+		args.ftf_flags |= IDE_FTFLAG_FLAGGED;
 
 		if (req_task->out_flags.b.data)
-			args.tf_flags |= IDE_TFLAG_OUT_DATA;
+			args.ftf_flags |= IDE_FTFLAG_OUT_DATA;
 
 		if (req_task->out_flags.b.nsector_hob)
 			args.tf_flags |= IDE_TFLAG_OUT_HOB_NSECT;
@@ -582,7 +582,7 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 	}
 
 	if (req_task->in_flags.b.data)
-		args.tf_flags |= IDE_TFLAG_IN_DATA;
+		args.ftf_flags |= IDE_FTFLAG_IN_DATA;
 
 	switch(req_task->data_phase) {
 		case TASKFILE_MULTI_OUT:
@@ -647,7 +647,7 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 	memcpy(req_task->hob_ports, &args.tf_array[0], HDIO_DRIVE_HOB_HDR_SIZE - 2);
 	memcpy(req_task->io_ports, &args.tf_array[6], HDIO_DRIVE_TASK_HDR_SIZE);
 
-	if ((args.tf_flags & IDE_TFLAG_FLAGGED_SET_IN_FLAGS) &&
+	if ((args.ftf_flags & IDE_FTFLAG_SET_IN_FLAGS) &&
 	    req_task->in_flags.all == 0) {
 		req_task->in_flags.all = IDE_TASKFILE_STD_IN_FLAGS;
 		if (drive->dev_flags & IDE_DFLAG_LBA48)
diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
index ea48a3ee8063..159eb39c7932 100644
--- a/drivers/ide/ns87415.c
+++ b/drivers/ide/ns87415.c
@@ -66,7 +66,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
 	struct ide_io_ports *io_ports = &drive->hwif->io_ports;
 	struct ide_taskfile *tf = &task->tf;
 
-	if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data = inw(io_ports->data_addr);
 
 		tf->data = data & 0xff;
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index ae965da5dde0..82929c725d82 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -672,10 +672,10 @@ static void scc_tf_load(ide_drive_t *drive, ide_task_t *task)
 	struct ide_taskfile *tf = &task->tf;
 	u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
 
-	if (task->tf_flags & IDE_TFLAG_FLAGGED)
+	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DATA)
+	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA)
 		out_be32((void *)io_ports->data_addr,
 			 (tf->hob_data << 8) | tf->data);
 
@@ -711,7 +711,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task)
 	struct ide_io_ports *io_ports = &drive->hwif->io_ports;
 	struct ide_taskfile *tf = &task->tf;
 
-	if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data = (u16)in_be32((void *)io_ports->data_addr);
 
 		tf->data = data & 0xff;
diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c
index efade9e898b3..6b51e0c58af7 100644
--- a/drivers/ide/tx4938ide.c
+++ b/drivers/ide/tx4938ide.c
@@ -89,10 +89,10 @@ static void tx4938ide_tf_load(ide_drive_t *drive, ide_task_t *task)
 	struct ide_taskfile *tf = &task->tf;
 	u8 HIHI = task->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
 
-	if (task->tf_flags & IDE_TFLAG_FLAGGED)
+	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA) {
 		u16 data = (tf->hob_data << 8) | tf->data;
 
 		/* no endian swap */
@@ -132,7 +132,7 @@ static void tx4938ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 	struct ide_io_ports *io_ports = &hwif->io_ports;
 	struct ide_taskfile *tf = &task->tf;
 
-	if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data;
 
 		/* no endian swap */
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index fb037a5e70b3..f0033eb2e885 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -474,10 +474,10 @@ static void tx4939ide_tf_load(ide_drive_t *drive, ide_task_t *task)
 	struct ide_taskfile *tf = &task->tf;
 	u8 HIHI = task->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
 
-	if (task->tf_flags & IDE_TFLAG_FLAGGED)
+	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA) {
 		u16 data = (tf->hob_data << 8) | tf->data;
 
 		/* no endian swap */
@@ -519,7 +519,7 @@ static void tx4939ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 	struct ide_io_ports *io_ports = &hwif->io_ports;
 	struct ide_taskfile *tf = &task->tf;
 
-	if (task->tf_flags & IDE_TFLAG_IN_DATA) {
+	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data;
 
 		/* no endian swap */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 3d4ba8e95d4a..675d4363ece4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -234,56 +234,52 @@ typedef enum {
 
 enum {
 	IDE_TFLAG_LBA48			= (1 << 0),
-	IDE_TFLAG_FLAGGED		= (1 << 2),
-	IDE_TFLAG_OUT_DATA		= (1 << 3),
-	IDE_TFLAG_OUT_HOB_FEATURE	= (1 << 4),
-	IDE_TFLAG_OUT_HOB_NSECT		= (1 << 5),
-	IDE_TFLAG_OUT_HOB_LBAL		= (1 << 6),
-	IDE_TFLAG_OUT_HOB_LBAM		= (1 << 7),
-	IDE_TFLAG_OUT_HOB_LBAH		= (1 << 8),
+	IDE_TFLAG_OUT_HOB_FEATURE	= (1 << 1),
+	IDE_TFLAG_OUT_HOB_NSECT		= (1 << 2),
+	IDE_TFLAG_OUT_HOB_LBAL		= (1 << 3),
+	IDE_TFLAG_OUT_HOB_LBAM		= (1 << 4),
+	IDE_TFLAG_OUT_HOB_LBAH		= (1 << 5),
 	IDE_TFLAG_OUT_HOB		= IDE_TFLAG_OUT_HOB_FEATURE |
 					  IDE_TFLAG_OUT_HOB_NSECT |
 					  IDE_TFLAG_OUT_HOB_LBAL |
 					  IDE_TFLAG_OUT_HOB_LBAM |
 					  IDE_TFLAG_OUT_HOB_LBAH,
-	IDE_TFLAG_OUT_FEATURE		= (1 << 9),
-	IDE_TFLAG_OUT_NSECT		= (1 << 10),
-	IDE_TFLAG_OUT_LBAL		= (1 << 11),
-	IDE_TFLAG_OUT_LBAM		= (1 << 12),
-	IDE_TFLAG_OUT_LBAH		= (1 << 13),
+	IDE_TFLAG_OUT_FEATURE		= (1 << 6),
+	IDE_TFLAG_OUT_NSECT		= (1 << 7),
+	IDE_TFLAG_OUT_LBAL		= (1 << 8),
+	IDE_TFLAG_OUT_LBAM		= (1 << 9),
+	IDE_TFLAG_OUT_LBAH		= (1 << 10),
 	IDE_TFLAG_OUT_TF		= IDE_TFLAG_OUT_FEATURE |
 					  IDE_TFLAG_OUT_NSECT |
 					  IDE_TFLAG_OUT_LBAL |
 					  IDE_TFLAG_OUT_LBAM |
 					  IDE_TFLAG_OUT_LBAH,
-	IDE_TFLAG_OUT_DEVICE		= (1 << 14),
-	IDE_TFLAG_WRITE			= (1 << 15),
-	IDE_TFLAG_FLAGGED_SET_IN_FLAGS	= (1 << 16),
-	IDE_TFLAG_IN_DATA		= (1 << 17),
-	IDE_TFLAG_CUSTOM_HANDLER	= (1 << 18),
-	IDE_TFLAG_DMA_PIO_FALLBACK	= (1 << 19),
-	IDE_TFLAG_IN_HOB_FEATURE	= (1 << 20),
-	IDE_TFLAG_IN_HOB_NSECT		= (1 << 21),
-	IDE_TFLAG_IN_HOB_LBAL		= (1 << 22),
-	IDE_TFLAG_IN_HOB_LBAM		= (1 << 23),
-	IDE_TFLAG_IN_HOB_LBAH		= (1 << 24),
+	IDE_TFLAG_OUT_DEVICE		= (1 << 11),
+	IDE_TFLAG_WRITE			= (1 << 12),
+	IDE_TFLAG_CUSTOM_HANDLER	= (1 << 13),
+	IDE_TFLAG_DMA_PIO_FALLBACK	= (1 << 14),
+	IDE_TFLAG_IN_HOB_FEATURE	= (1 << 15),
+	IDE_TFLAG_IN_HOB_NSECT		= (1 << 16),
+	IDE_TFLAG_IN_HOB_LBAL		= (1 << 17),
+	IDE_TFLAG_IN_HOB_LBAM		= (1 << 18),
+	IDE_TFLAG_IN_HOB_LBAH		= (1 << 19),
 	IDE_TFLAG_IN_HOB_LBA		= IDE_TFLAG_IN_HOB_LBAL |
 					  IDE_TFLAG_IN_HOB_LBAM |
 					  IDE_TFLAG_IN_HOB_LBAH,
 	IDE_TFLAG_IN_HOB		= IDE_TFLAG_IN_HOB_FEATURE |
 					  IDE_TFLAG_IN_HOB_NSECT |
 					  IDE_TFLAG_IN_HOB_LBA,
-	IDE_TFLAG_IN_FEATURE		= (1 << 1),
-	IDE_TFLAG_IN_NSECT		= (1 << 25),
-	IDE_TFLAG_IN_LBAL		= (1 << 26),
-	IDE_TFLAG_IN_LBAM		= (1 << 27),
-	IDE_TFLAG_IN_LBAH		= (1 << 28),
+	IDE_TFLAG_IN_FEATURE		= (1 << 20),
+	IDE_TFLAG_IN_NSECT		= (1 << 21),
+	IDE_TFLAG_IN_LBAL		= (1 << 22),
+	IDE_TFLAG_IN_LBAM		= (1 << 23),
+	IDE_TFLAG_IN_LBAH		= (1 << 24),
 	IDE_TFLAG_IN_LBA		= IDE_TFLAG_IN_LBAL |
 					  IDE_TFLAG_IN_LBAM |
 					  IDE_TFLAG_IN_LBAH,
 	IDE_TFLAG_IN_TF			= IDE_TFLAG_IN_NSECT |
 					  IDE_TFLAG_IN_LBA,
-	IDE_TFLAG_IN_DEVICE		= (1 << 29),
+	IDE_TFLAG_IN_DEVICE		= (1 << 25),
 	IDE_TFLAG_HOB			= IDE_TFLAG_OUT_HOB |
 					  IDE_TFLAG_IN_HOB,
 	IDE_TFLAG_TF			= IDE_TFLAG_OUT_TF |
@@ -291,9 +287,16 @@ enum {
 	IDE_TFLAG_DEVICE		= IDE_TFLAG_OUT_DEVICE |
 					  IDE_TFLAG_IN_DEVICE,
 	/* force 16-bit I/O operations */
-	IDE_TFLAG_IO_16BIT		= (1 << 30),
+	IDE_TFLAG_IO_16BIT		= (1 << 26),
 	/* ide_task_t was allocated using kmalloc() */
-	IDE_TFLAG_DYN			= (1 << 31),
+	IDE_TFLAG_DYN			= (1 << 27),
+};
+
+enum {
+	IDE_FTFLAG_FLAGGED		= (1 << 0),
+	IDE_FTFLAG_SET_IN_FLAGS		= (1 << 1),
+	IDE_FTFLAG_OUT_DATA		= (1 << 2),
+	IDE_FTFLAG_IN_DATA		= (1 << 3),
 };
 
 struct ide_taskfile {
@@ -330,6 +333,7 @@ typedef struct ide_task_s {
 		struct ide_taskfile	tf;
 		u8			tf_array[14];
 	};
+	u8			ftf_flags;	/* for TASKFILE ioctl */
 	u32			tf_flags;
 	int			data_phase;
 	struct request		*rq;		/* copy of request */
-- 
cgit v1.2.3


From 3616b6536a74ff1c56029c17cbb3575c69c0a574 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:29 +0100
Subject: ide: complete power step in ide_complete_pm_request()

* Complete power step in ide_complete_pm_request().

* Rename ide_complete_pm_request() to ide_complete_pm_rq().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-io.c | 8 ++------
 drivers/ide/ide-pm.c | 9 +++++++--
 include/linux/ide.h  | 2 +-
 3 files changed, 10 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 7007c48e27ae..49b098de367c 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -178,11 +178,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
 				kfree(task);
 		}
 	} else if (blk_pm_request(rq)) {
-		struct request_pm_state *pm = rq->data;
-
-		ide_complete_power_step(drive, rq);
-		if (pm->pm_step == IDE_PM_COMPLETED)
-			ide_complete_pm_request(drive, rq);
+		ide_complete_pm_rq(drive, rq);
 		return;
 	}
 
@@ -438,7 +434,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq)
 			startstop = ide_start_power_step(drive, rq);
 			if (startstop == ide_stopped &&
 			    pm->pm_step == IDE_PM_COMPLETED)
-				ide_complete_pm_request(drive, rq);
+				ide_complete_pm_rq(drive, rq);
 			return startstop;
 		} else if (!rq->rq_disk && blk_special_request(rq))
 			/*
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index 60538d9c84ee..74c7c2bbe0fd 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -169,18 +169,23 @@ out_do_tf:
 }
 
 /**
- *	ide_complete_pm_request - end the current Power Management request
+ *	ide_complete_pm_rq - end the current Power Management request
  *	@drive: target drive
  *	@rq: request
  *
  *	This function cleans up the current PM request and stops the queue
  *	if necessary.
  */
-void ide_complete_pm_request(ide_drive_t *drive, struct request *rq)
+void ide_complete_pm_rq(ide_drive_t *drive, struct request *rq)
 {
 	struct request_queue *q = drive->queue;
+	struct request_pm_state *pm = rq->data;
 	unsigned long flags;
 
+	ide_complete_power_step(drive, rq);
+	if (pm->pm_step != IDE_PM_COMPLETED)
+		return;
+
 #ifdef DEBUG_PM
 	printk("%s: completing PM request, %s\n", drive->name,
 	       blk_pm_suspend_request(rq) ? "suspend" : "resume");
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 675d4363ece4..c5ac19e43fc0 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1081,7 +1081,7 @@ int generic_ide_resume(struct device *);
 
 void ide_complete_power_step(ide_drive_t *, struct request *);
 ide_startstop_t ide_start_power_step(ide_drive_t *, struct request *);
-void ide_complete_pm_request(ide_drive_t *, struct request *);
+void ide_complete_pm_rq(ide_drive_t *, struct request *);
 void ide_check_pm_state(ide_drive_t *, struct request *);
 
 /*
-- 
cgit v1.2.3


From a09485df9cda49fbde2766c86eb18a9cae585162 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:31 +0100
Subject: ide: move request type specific code from ide_end_drive_cmd() to
 callers (v3)

* Move request type specific code from ide_end_drive_cmd() to callers.

* Remove stale ide_end_drive_cmd() documentation and drop no longer
  used 'stat' argument.  Then rename the function to ide_complete_rq().

v2:
* Fix handling of blk_pm_request() requests in task_no_data_intr().

v3:
* Some ide_no_data_taskfile() users (HPA code and HDIO_DRIVE_* ioctls
  handlers) access original command later so we need to update it in
  ide_complete_task().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-eh.c       | 11 ++++++++++-
 drivers/ide/ide-floppy.c   |  2 +-
 drivers/ide/ide-io.c       | 40 ++++++++++------------------------------
 drivers/ide/ide-tape.c     |  2 +-
 drivers/ide/ide-taskfile.c | 26 +++++++++++++++++++-------
 include/linux/ide.h        |  3 ++-
 6 files changed, 43 insertions(+), 41 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
index 1231b5e486f2..e2c04886616f 100644
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -124,7 +124,16 @@ ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat)
 	/* retry only "normal" I/O: */
 	if (!blk_fs_request(rq)) {
 		rq->errors = 1;
-		ide_end_drive_cmd(drive, stat, err);
+		if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
+			ide_task_t *task = rq->special;
+
+			if (task)
+				ide_complete_task(drive, task, stat, err);
+		} else if (blk_pm_request(rq)) {
+			ide_complete_pm_rq(drive, rq);
+			return ide_stopped;
+		}
+		ide_complete_rq(drive, err);
 		return ide_stopped;
 	}
 
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index d1a79e8e0d69..39e7fda37c5f 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -101,7 +101,7 @@ static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
 	}
 	rq->errors = error;
 	/* fixme: need to move this local also */
-	ide_end_drive_cmd(drive, 0, 0);
+	ide_complete_rq(drive, 0);
 	return 0;
 }
 
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index b8426e9c0906..4a97a97e56c4 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -144,49 +144,28 @@ int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
 }
 EXPORT_SYMBOL_GPL(ide_end_dequeued_request);
 
-static void ide_complete_task(ide_drive_t *drive, ide_task_t *task,
-			      u8 stat, u8 err)
+void ide_complete_task(ide_drive_t *drive, ide_task_t *task, u8 stat, u8 err)
 {
 	struct ide_taskfile *tf = &task->tf;
+	struct request *rq = task->rq;
 
 	tf->error = err;
 	tf->status = stat;
 
 	drive->hwif->tp_ops->tf_read(drive, task);
 
+	if (rq && rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
+		memcpy(rq->special, task, sizeof(*task));
+
 	if (task->tf_flags & IDE_TFLAG_DYN)
 		kfree(task);
 }
 
-/**
- *	ide_end_drive_cmd	-	end an explicit drive command
- *	@drive: command 
- *	@stat: status bits
- *	@err: error bits
- *
- *	Clean up after success/failure of an explicit drive command.
- *	These get thrown onto the queue so they are synchronized with
- *	real I/O operations on the drive.
- *
- *	In LBA48 mode we have to read the register set twice to get
- *	all the extra information out.
- */
- 
-void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
+void ide_complete_rq(ide_drive_t *drive, u8 err)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->rq;
 
-	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
-		ide_task_t *task = (ide_task_t *)rq->special;
-
-		if (task)
-			ide_complete_task(drive, task, stat, err);
-	} else if (blk_pm_request(rq)) {
-		ide_complete_pm_rq(drive, rq);
-		return;
-	}
-
 	hwif->rq = NULL;
 
 	rq->errors = err;
@@ -195,7 +174,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
 				     blk_rq_bytes(rq))))
 		BUG();
 }
-EXPORT_SYMBOL(ide_end_drive_cmd);
+EXPORT_SYMBOL(ide_complete_rq);
 
 void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 {
@@ -358,8 +337,9 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 #ifdef DEBUG
  	printk("%s: DRIVE_CMD (null)\n", drive->name);
 #endif
-	ide_end_drive_cmd(drive, hwif->tp_ops->read_status(hwif),
-			  ide_read_error(drive));
+	(void)hwif->tp_ops->read_status(hwif);
+
+	ide_complete_rq(drive, ide_read_error(drive));
 
  	return ide_stopped;
 }
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 4e6181c7bbda..de2d926e66c2 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -502,7 +502,7 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
 
 	spin_lock_irqsave(&tape->lock, flags);
 
-	ide_end_drive_cmd(drive, 0, 0);
+	ide_complete_rq(drive, 0);
 
 	spin_unlock_irqrestore(&tape->lock, flags);
 	return 0;
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 02240a3ee0fb..297cf6f4c723 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -147,12 +147,9 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
 			}
 		}
 		return ide_error(drive, "task_no_data_intr", stat);
-		/* calls ide_end_drive_cmd */
 	}
 
-	if (!custom)
-		ide_end_drive_cmd(drive, stat, ide_read_error(drive));
-	else if (tf->command == ATA_CMD_IDLEIMMEDIATE) {
+	if (custom && tf->command == ATA_CMD_IDLEIMMEDIATE) {
 		hwif->tp_ops->tf_read(drive, task);
 		if (tf->lbal != 0xc4) {
 			printk(KERN_ERR "%s: head unload failed!\n",
@@ -160,10 +157,22 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
 			ide_tf_dump(drive->name, tf);
 		} else
 			drive->dev_flags |= IDE_DFLAG_PARKED;
-		ide_end_drive_cmd(drive, stat, ide_read_error(drive));
-	} else if (tf->command == ATA_CMD_SET_MULTI)
+	} else if (custom && tf->command == ATA_CMD_SET_MULTI)
 		drive->mult_count = drive->mult_req;
 
+	if (custom == 0 || tf->command == ATA_CMD_IDLEIMMEDIATE) {
+		struct request *rq = hwif->rq;
+		u8 err = ide_read_error(drive);
+
+		if (blk_pm_request(rq))
+			ide_complete_pm_rq(drive, rq);
+		else {
+			if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
+				ide_complete_task(drive, task, stat, err);
+			ide_complete_rq(drive, err);
+		}
+	}
+
 	return ide_stopped;
 }
 
@@ -321,9 +330,12 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
 void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
 {
 	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
+		ide_task_t *task = rq->special;
 		u8 err = ide_read_error(drive);
 
-		ide_end_drive_cmd(drive, stat, err);
+		if (task)
+			ide_complete_task(drive, task, stat, err);
+		ide_complete_rq(drive, err);
 		return;
 	}
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index c5ac19e43fc0..83bed2f4378a 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1158,7 +1158,8 @@ extern ide_startstop_t ide_do_reset (ide_drive_t *);
 extern int ide_devset_execute(ide_drive_t *drive,
 			      const struct ide_devset *setting, int arg);
 
-extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
+void ide_complete_task(ide_drive_t *, ide_task_t *, u8, u8);
+void ide_complete_rq(ide_drive_t *, u8);
 
 void ide_tf_dump(const char *, struct ide_taskfile *);
 
-- 
cgit v1.2.3


From e3d9a73a83d98fc466dabdcfe4f4e7e4419e3f8e Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:32 +0100
Subject: ide: remove ->data_phase field from ide_hwif_t

* Always use hwif->task->data_phase and remove ->data_phase
  field from ide_hwif_t.

* Remove superfluous REQ_TYPE_ATA_TASKFILE check from
  ide_pio_datablock() while at it.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-disk.c     |  3 ---
 drivers/ide/ide-io.c       |  5 +----
 drivers/ide/ide-park.c     |  2 +-
 drivers/ide/ide-taskfile.c | 18 ++++++++----------
 include/linux/ide.h        |  3 ---
 5 files changed, 10 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 806760d24cef..0f196e5fcff3 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -160,8 +160,6 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 		task.tf_flags |= IDE_TFLAG_WRITE;
 
 	ide_tf_set_cmd(drive, &task, dma);
-	if (!dma)
-		hwif->data_phase = task.data_phase;
 	task.rq = rq;
 
 	rc = do_rw_taskfile(drive, &task);
@@ -170,7 +168,6 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 		/* fallback to PIO */
 		task.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK;
 		ide_tf_set_cmd(drive, &task, 0);
-		hwif->data_phase = task.data_phase;
 		ide_init_sg_cmd(drive, rq);
 		rc = do_rw_taskfile(drive, &task);
 	}
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 45fc18ff73cb..38076169b893 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -310,13 +310,10 @@ EXPORT_SYMBOL_GPL(ide_init_sg_cmd);
 static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 		struct request *rq)
 {
-	ide_hwif_t *hwif = drive->hwif;
 	ide_task_t *task = rq->special;
 
 	if (task) {
-		hwif->data_phase = task->data_phase;
-
-		switch (hwif->data_phase) {
+		switch (task->data_phase) {
 		case TASKFILE_MULTI_OUT:
 		case TASKFILE_OUT:
 		case TASKFILE_MULTI_IN:
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
index f30e52152fcb..cddc7c778760 100644
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -81,7 +81,7 @@ ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
 
 	task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 	task.rq = rq;
-	drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
+	task.data_phase = TASKFILE_NO_DATA;
 	return do_rw_taskfile(drive, &task);
 }
 
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 297cf6f4c723..7237e1547b1f 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -265,21 +265,18 @@ static void ide_pio_multi(ide_drive_t *drive, struct request *rq,
 static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
 				     unsigned int write)
 {
+	ide_task_t *task = &drive->hwif->task;
 	u8 saved_io_32bit = drive->io_32bit;
 
 	if (rq->bio)	/* fs request */
 		rq->errors = 0;
 
-	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
-		ide_task_t *task = rq->special;
-
-		if (task->tf_flags & IDE_TFLAG_IO_16BIT)
-			drive->io_32bit = 0;
-	}
+	if (task->tf_flags & IDE_TFLAG_IO_16BIT)
+		drive->io_32bit = 0;
 
 	touch_softlockup_watchdog();
 
-	switch (drive->hwif->data_phase) {
+	switch (task->data_phase) {
 	case TASKFILE_MULTI_IN:
 	case TASKFILE_MULTI_OUT:
 		ide_pio_multi(drive, rq, write);
@@ -297,9 +294,10 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
 {
 	if (rq->bio) {
 		ide_hwif_t *hwif = drive->hwif;
+		ide_task_t *task = &hwif->task;
 		int sectors = hwif->nsect - hwif->nleft;
 
-		switch (hwif->data_phase) {
+		switch (task->data_phase) {
 		case TASKFILE_IN:
 			if (hwif->nleft)
 				break;
@@ -431,14 +429,14 @@ static ide_startstop_t task_out_intr (ide_drive_t *drive)
 
 static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
 {
-	ide_hwif_t *hwif = drive->hwif;
+	ide_task_t *task = &drive->hwif->task;
 	ide_startstop_t startstop;
 
 	if (ide_wait_stat(&startstop, drive, ATA_DRQ,
 			  drive->bad_wstat, WAIT_DRQ)) {
 		printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n",
 			drive->name,
-			hwif->data_phase == TASKFILE_MULTI_OUT ? "MULT" : "",
+			task->data_phase == TASKFILE_MULTI_OUT ? "MULT" : "",
 			(drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : "");
 		return startstop;
 	}
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 83bed2f4378a..146b07a9b649 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -768,9 +768,6 @@ typedef struct hwif_s {
 	int orig_sg_nents;
 	int sg_dma_direction;		/* dma transfer direction */
 
-	/* data phase of the active command (currently only valid for PIO/DMA) */
-	int		data_phase;
-
 	struct ide_task_s task;		/* current command */
 
 	unsigned int nsect;
-- 
cgit v1.2.3


From c7016e95a556098db6dc4d9096a6189be9e18266 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:33 +0100
Subject: ide: remove no longer needed PC_FLAG_TIMEDOUT packet command flag

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c | 5 -----
 include/linux/ide.h     | 2 --
 2 files changed, 7 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 6adc5b4a4406..f44474b0adae 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -336,11 +336,6 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 	timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD
 					       : WAIT_TAPE_CMD;
 
-	if (pc->flags & PC_FLAG_TIMEDOUT) {
-		drive->pc_callback(drive, 0);
-		return ide_stopped;
-	}
-
 	/* Clear the interrupt */
 	stat = tp_ops->read_status(hwif);
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 146b07a9b649..8b0ea43884c0 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -350,8 +350,6 @@ enum {
 	PC_FLAG_DMA_IN_PROGRESS		= (1 << 4),
 	PC_FLAG_DMA_ERROR		= (1 << 5),
 	PC_FLAG_WRITING			= (1 << 6),
-	/* command timed out */
-	PC_FLAG_TIMEDOUT		= (1 << 7),
 };
 
 /*
-- 
cgit v1.2.3


From 5e2040fd0a97888952b37243b5868872bbe0f6ac Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:34 +0100
Subject: ide: move ->failed_pc to ide_drive_t

Move ->failed_pc from struct ide_{disk,tape}_obj to ide_drive_t.

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-floppy.c | 21 ++++++++++-----------
 drivers/ide/ide-gd.h     |  2 --
 drivers/ide/ide-tape.c   | 29 ++++++++++-------------------
 include/linux/ide.h      |  3 +++
 4 files changed, 23 insertions(+), 32 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 6dda0fba017b..f9ad4b3021ee 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -70,7 +70,6 @@
  */
 static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
 {
-	struct ide_disk_obj *floppy = drive->driver_data;
 	struct request *rq = drive->hwif->rq;
 	int error;
 
@@ -90,7 +89,7 @@ static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
 	}
 
 	if (error)
-		floppy->failed_pc = NULL;
+		drive->failed_pc = NULL;
 
 	if (!blk_special_request(rq)) {
 		/* our real local end request function */
@@ -121,8 +120,8 @@ static void ide_floppy_callback(ide_drive_t *drive, int dsc)
 
 	ide_debug_log(IDE_DBG_FUNC, "enter");
 
-	if (floppy->failed_pc == pc)
-		floppy->failed_pc = NULL;
+	if (drive->failed_pc == pc)
+		drive->failed_pc = NULL;
 
 	if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 ||
 	    (pc->rq && blk_pc_request(pc->rq)))
@@ -137,9 +136,9 @@ static void ide_floppy_callback(ide_drive_t *drive, int dsc)
 			floppy->progress_indication = buf[15] & 0x80 ?
 				(u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
 
-			if (floppy->failed_pc)
+			if (drive->failed_pc)
 				ide_debug_log(IDE_DBG_PC, "pc = %x",
-					      floppy->failed_pc->c[0]);
+					      drive->failed_pc->c[0]);
 
 			ide_debug_log(IDE_DBG_SENSE, "sense key = %x, asc = %x,"
 				      "ascq = %x", floppy->sense_key,
@@ -173,9 +172,9 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
 {
 	struct ide_disk_obj *floppy = drive->driver_data;
 
-	if (floppy->failed_pc == NULL &&
+	if (drive->failed_pc == NULL &&
 	    pc->c[0] != GPCMD_REQUEST_SENSE)
-		floppy->failed_pc = pc;
+		drive->failed_pc = pc;
 
 	/* Set the current packet command */
 	drive->pc = pc;
@@ -186,7 +185,7 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
 		/* Giving up */
 		pc->error = IDEFLOPPY_ERROR_GENERAL;
 
-		floppy->failed_pc = NULL;
+		drive->failed_pc = NULL;
 		drive->pc_callback(drive, 0);
 		return ide_stopped;
 	}
@@ -290,8 +289,8 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 					: "dev?"));
 
 	if (rq->errors >= ERROR_MAX) {
-		if (floppy->failed_pc)
-			ide_floppy_report_error(floppy, floppy->failed_pc);
+		if (drive->failed_pc)
+			ide_floppy_report_error(floppy, drive->failed_pc);
 		else
 			printk(KERN_ERR PFX "%s: I/O error\n", drive->name);
 
diff --git a/drivers/ide/ide-gd.h b/drivers/ide/ide-gd.h
index 70b43765327d..55970772bd04 100644
--- a/drivers/ide/ide-gd.h
+++ b/drivers/ide/ide-gd.h
@@ -20,8 +20,6 @@ struct ide_disk_obj {
 	struct device		dev;
 	unsigned int		openers;	/* protected by BKL for now */
 
-	/* Last failed packet command */
-	struct ide_atapi_pc *failed_pc;
 	/* used for blk_{fs,pc}_request() requests */
 	struct ide_atapi_pc queued_pc;
 
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 72b4350bfeb6..d6555984ee88 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -171,14 +171,6 @@ typedef struct ide_tape_obj {
 	struct gendisk		*disk;
 	struct device		dev;
 
-	/*
-	 *	failed_pc points to the last failed packet command, or contains
-	 *	NULL if we do not need to retry any packet command. This is
-	 *	required since an additional packet command is needed before the
-	 *	retry, to get detailed information on what went wrong.
-	 */
-	/* Last failed packet command */
-	struct ide_atapi_pc *failed_pc;
 	/* used by REQ_IDETAPE_{READ,WRITE} requests */
 	struct ide_atapi_pc queued_pc;
 
@@ -397,7 +389,7 @@ static void idetape_update_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc)
 static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
 {
 	idetape_tape_t *tape = drive->driver_data;
-	struct ide_atapi_pc *pc = tape->failed_pc;
+	struct ide_atapi_pc *pc = drive->failed_pc;
 
 	tape->sense_key = sense[2] & 0xF;
 	tape->asc       = sense[12];
@@ -477,7 +469,6 @@ static void ide_tape_kfree_buffer(idetape_tape_t *tape)
 static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
 {
 	struct request *rq = drive->hwif->rq;
-	idetape_tape_t *tape = drive->driver_data;
 	int error;
 
 	debug_log(DBG_PROCS, "Enter %s\n", __func__);
@@ -489,7 +480,7 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
 	}
 	rq->errors = error;
 	if (error)
-		tape->failed_pc = NULL;
+		drive->failed_pc = NULL;
 
 	if (!blk_special_request(rq)) {
 		ide_end_request(drive, uptodate, nr_sects);
@@ -514,8 +505,8 @@ static void ide_tape_callback(ide_drive_t *drive, int dsc)
 	if (dsc)
 		ide_tape_handle_dsc(drive);
 
-	if (tape->failed_pc == pc)
-		tape->failed_pc = NULL;
+	if (drive->failed_pc == pc)
+		drive->failed_pc = NULL;
 
 	if (pc->c[0] == REQUEST_SENSE) {
 		if (uptodate)
@@ -653,8 +644,8 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
 			"Two request sense in serial were issued\n");
 	}
 
-	if (tape->failed_pc == NULL && pc->c[0] != REQUEST_SENSE)
-		tape->failed_pc = pc;
+	if (drive->failed_pc == NULL && pc->c[0] != REQUEST_SENSE)
+		drive->failed_pc = pc;
 
 	/* Set the current packet command */
 	drive->pc = pc;
@@ -680,7 +671,7 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
 			/* Giving up */
 			pc->error = IDETAPE_ERROR_GENERAL;
 		}
-		tape->failed_pc = NULL;
+		drive->failed_pc = NULL;
 		drive->pc_callback(drive, 0);
 		return ide_stopped;
 	}
@@ -740,7 +731,7 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
 		pc->error = 0;
 	} else {
 		pc->error = IDETAPE_ERROR_GENERAL;
-		tape->failed_pc = NULL;
+		drive->failed_pc = NULL;
 	}
 	drive->pc_callback(drive, 0);
 	return ide_stopped;
@@ -799,8 +790,8 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
 	}
 
 	/* Retry a failed packet command */
-	if (tape->failed_pc && drive->pc->c[0] == REQUEST_SENSE) {
-		pc = tape->failed_pc;
+	if (drive->failed_pc && drive->pc->c[0] == REQUEST_SENSE) {
+		pc = drive->failed_pc;
 		goto out;
 	}
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 8b0ea43884c0..4a904681f3e4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -609,6 +609,9 @@ struct ide_drive_s {
 	/* current packet command */
 	struct ide_atapi_pc *pc;
 
+	/* last failed packet command */
+	struct ide_atapi_pc *failed_pc;
+
 	/* callback for packet commands */
 	void (*pc_callback)(struct ide_drive_s *, int);
 
-- 
cgit v1.2.3


From c152cc1a90f9680cefa74d9ff9ce36038081ba72 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:34 +0100
Subject: ide: use ->end_request only for private device driver requests

* Move IDE{FLOPPY,TAPE}_ERROR_* defines to <linux/ide.h> and rename them
  to IDE_DRV_ERROR_*.

* Handle ->end_request special cases for floppy/tape media in ide_kill_rq().

* Call ->end_request only for private device driver requests.

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-floppy.c   |  7 ++-----
 drivers/ide/ide-io.c       |  7 ++++++-
 drivers/ide/ide-tape.c     | 19 +++++++------------
 drivers/ide/ide-taskfile.c | 16 +++-------------
 include/linux/ide.h        |  7 +++++++
 5 files changed, 25 insertions(+), 31 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index f9ad4b3021ee..fb235641da33 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -61,9 +61,6 @@
  */
 #define IDEFLOPPY_PC_DELAY	(HZ/20)	/* default delay for ZIP 100 (50ms) */
 
-/* Error code returned in rq->errors to the higher part of the driver. */
-#define	IDEFLOPPY_ERROR_GENERAL		101
-
 /*
  * Used to finish servicing a request. For read/write requests, we will call
  * ide_end_request to pass to the next buffer.
@@ -77,7 +74,7 @@ static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
 
 	switch (uptodate) {
 	case 0:
-		error = IDEFLOPPY_ERROR_GENERAL;
+		error = IDE_DRV_ERROR_GENERAL;
 		break;
 
 	case 1:
@@ -183,7 +180,7 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
 		if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR))
 			ide_floppy_report_error(floppy, pc);
 		/* Giving up */
-		pc->error = IDEFLOPPY_ERROR_GENERAL;
+		pc->error = IDE_DRV_ERROR_GENERAL;
 
 		drive->failed_pc = NULL;
 		drive->pc_callback(drive, 0);
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 38076169b893..da2f97dfa8f8 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -178,7 +178,12 @@ EXPORT_SYMBOL(ide_complete_rq);
 
 void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 {
-	if (rq->rq_disk) {
+	drive->failed_pc = NULL;
+
+	if (drive->media == ide_tape)
+		rq->errors = IDE_DRV_ERROR_GENERAL;
+
+	if (blk_special_request(rq) && rq->rq_disk) {
 		struct ide_driver *drv;
 
 		drv = *(struct ide_driver **)rq->rq_disk->private_data;
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index d6555984ee88..e3b4c1c39d37 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -152,11 +152,6 @@ struct idetape_bh {
 #define IDETAPE_LU_RETENSION_MASK	2
 #define IDETAPE_LU_EOT_MASK		4
 
-/* Error codes returned in rq->errors to the higher part of the driver. */
-#define IDETAPE_ERROR_GENERAL		101
-#define IDETAPE_ERROR_FILEMARK		102
-#define IDETAPE_ERROR_EOD		103
-
 /* Structures related to the SELECT SENSE / MODE SENSE packet commands. */
 #define IDETAPE_BLOCK_DESCRIPTOR	0
 #define IDETAPE_CAPABILITIES_PAGE	0x2a
@@ -422,19 +417,19 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
 		}
 	}
 	if (pc->c[0] == READ_6 && (sense[2] & 0x80)) {
-		pc->error = IDETAPE_ERROR_FILEMARK;
+		pc->error = IDE_DRV_ERROR_FILEMARK;
 		pc->flags |= PC_FLAG_ABORT;
 	}
 	if (pc->c[0] == WRITE_6) {
 		if ((sense[2] & 0x40) || (tape->sense_key == 0xd
 		     && tape->asc == 0x0 && tape->ascq == 0x2)) {
-			pc->error = IDETAPE_ERROR_EOD;
+			pc->error = IDE_DRV_ERROR_EOD;
 			pc->flags |= PC_FLAG_ABORT;
 		}
 	}
 	if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) {
 		if (tape->sense_key == 8) {
-			pc->error = IDETAPE_ERROR_EOD;
+			pc->error = IDE_DRV_ERROR_EOD;
 			pc->flags |= PC_FLAG_ABORT;
 		}
 		if (!(pc->flags & PC_FLAG_ABORT) &&
@@ -474,7 +469,7 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
 	debug_log(DBG_PROCS, "Enter %s\n", __func__);
 
 	switch (uptodate) {
-	case 0:	error = IDETAPE_ERROR_GENERAL; break;
+	case 0: error = IDE_DRV_ERROR_GENERAL; break;
 	case 1: error = 0; break;
 	default: error = uptodate;
 	}
@@ -669,7 +664,7 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
 						tape->ascq);
 			}
 			/* Giving up */
-			pc->error = IDETAPE_ERROR_GENERAL;
+			pc->error = IDE_DRV_ERROR_GENERAL;
 		}
 		drive->failed_pc = NULL;
 		drive->pc_callback(drive, 0);
@@ -730,7 +725,7 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
 		}
 		pc->error = 0;
 	} else {
-		pc->error = IDETAPE_ERROR_GENERAL;
+		pc->error = IDE_DRV_ERROR_GENERAL;
 		drive->failed_pc = NULL;
 	}
 	drive->pc_callback(drive, 0);
@@ -1210,7 +1205,7 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int blocks,
 
 	if (tape->merge_bh)
 		idetape_init_merge_buffer(tape);
-	if (errors == IDETAPE_ERROR_GENERAL)
+	if (errors == IDE_DRV_ERROR_GENERAL)
 		return -EIO;
 	return ret;
 }
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 7237e1547b1f..f85b7f21a617 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -315,12 +315,8 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
 			break;
 		}
 
-		if (sectors > 0) {
-			struct ide_driver *drv;
-
-			drv = *(struct ide_driver **)rq->rq_disk->private_data;
-			drv->end_request(drive, 1, sectors);
-		}
+		if (sectors > 0)
+			ide_end_request(drive, 1, sectors);
 	}
 	return ide_error(drive, s, stat);
 }
@@ -337,13 +333,7 @@ void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
 		return;
 	}
 
-	if (rq->rq_disk) {
-		struct ide_driver *drv;
-
-		drv = *(struct ide_driver **)rq->rq_disk->private_data;;
-		drv->end_request(drive, 1, rq->nr_sectors);
-	} else
-		ide_end_request(drive, 1, rq->nr_sectors);
+	ide_end_request(drive, 1, rq->nr_sectors);
 }
 
 /*
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 4a904681f3e4..aece06a4930f 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -40,6 +40,13 @@
 #define ERROR_RESET	3	/* Reset controller every 4th retry */
 #define ERROR_RECAL	1	/* Recalibrate every 2nd retry */
 
+/* Error codes returned in rq->errors to the higher part of the driver. */
+enum {
+	IDE_DRV_ERROR_GENERAL	= 101,
+	IDE_DRV_ERROR_FILEMARK	= 102,
+	IDE_DRV_ERROR_EOD	= 103,
+};
+
 /*
  * Definitions for accessing IDE controller registers
  */
-- 
cgit v1.2.3


From 3ee38302ffc63da93eb0313053a990bb3466e275 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:36 +0100
Subject: ide: remove ->end_request method

* Handle completion of private driver requests explicitly
  for ide_floppy and ide_tape media in ide_kill_rq().

* Remove no longer needed ->end_request method.

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-cd.c     |  1 -
 drivers/ide/ide-disk.c   |  1 -
 drivers/ide/ide-floppy.c | 20 --------------------
 drivers/ide/ide-gd.c     |  6 ------
 drivers/ide/ide-io.c     | 14 +++++++-------
 drivers/ide/ide-tape.c   | 17 -----------------
 include/linux/ide.h      |  2 --
 7 files changed, 7 insertions(+), 54 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 4528e25f2bbb..bb804ae57bc5 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1834,7 +1834,6 @@ static struct ide_driver ide_cdrom_driver = {
 	.remove			= ide_cd_remove,
 	.version		= IDECD_VERSION,
 	.do_request		= ide_cd_do_request,
-	.end_request		= ide_end_request,
 #ifdef CONFIG_IDE_PROC_FS
 	.proc_entries		= ide_cd_proc_entries,
 	.proc_devsets		= ide_cd_proc_devsets,
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 0f196e5fcff3..912be155a8c1 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -734,6 +734,5 @@ const struct ide_disk_ops ide_ata_disk_ops = {
 	.init_media	= ide_disk_init_media,
 	.set_doorlock	= ide_disk_set_doorlock,
 	.do_request	= ide_do_rw_disk,
-	.end_request	= ide_end_request,
 	.ioctl		= ide_disk_ioctl,
 };
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index bdd8f8e2df6d..ab870a08d62b 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -61,25 +61,6 @@
  */
 #define IDEFLOPPY_PC_DELAY	(HZ/20)	/* default delay for ZIP 100 (50ms) */
 
-/*
- * Used to finish servicing a private request.
- */
-static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs)
-{
-	struct request *rq = drive->hwif->rq;
-
-	ide_debug_log(IDE_DBG_FUNC, "enter");
-
-	if (uptodate == 0)
-		drive->failed_pc = NULL;
-
-	rq->errors = uptodate ? 0 : IDE_DRV_ERROR_GENERAL;
-
-	ide_complete_rq(drive, 0);
-
-	return 0;
-}
-
 static void idefloppy_update_buffers(ide_drive_t *drive,
 				struct ide_atapi_pc *pc)
 {
@@ -560,6 +541,5 @@ const struct ide_disk_ops ide_atapi_disk_ops = {
 	.init_media	= ide_floppy_init_media,
 	.set_doorlock	= ide_set_media_lock,
 	.do_request	= ide_floppy_do_request,
-	.end_request	= ide_floppy_end_request,
 	.ioctl		= ide_floppy_ioctl,
 };
diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c
index c51a35093ae2..1aebdf1a4f58 100644
--- a/drivers/ide/ide-gd.c
+++ b/drivers/ide/ide-gd.c
@@ -145,11 +145,6 @@ static ide_startstop_t ide_gd_do_request(ide_drive_t *drive,
 	return drive->disk_ops->do_request(drive, rq, sector);
 }
 
-static int ide_gd_end_request(ide_drive_t *drive, int uptodate, int nrsecs)
-{
-	return drive->disk_ops->end_request(drive, uptodate, nrsecs);
-}
-
 static struct ide_driver ide_gd_driver = {
 	.gen_driver = {
 		.owner		= THIS_MODULE,
@@ -162,7 +157,6 @@ static struct ide_driver ide_gd_driver = {
 	.shutdown		= ide_gd_shutdown,
 	.version		= IDE_GD_VERSION,
 	.do_request		= ide_gd_do_request,
-	.end_request		= ide_gd_end_request,
 #ifdef CONFIG_IDE_PROC_FS
 	.proc_entries		= ide_disk_proc_entries,
 	.proc_devsets		= ide_disk_proc_devsets,
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index da2f97dfa8f8..6eee41beec73 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -178,17 +178,17 @@ EXPORT_SYMBOL(ide_complete_rq);
 
 void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 {
+	u8 drv_req = blk_special_request(rq) && rq->rq_disk;
+	u8 media = drive->media;
+
 	drive->failed_pc = NULL;
 
-	if (drive->media == ide_tape)
+	if ((media == ide_floppy && drv_req) || media == ide_tape)
 		rq->errors = IDE_DRV_ERROR_GENERAL;
 
-	if (blk_special_request(rq) && rq->rq_disk) {
-		struct ide_driver *drv;
-
-		drv = *(struct ide_driver **)rq->rq_disk->private_data;
-		drv->end_request(drive, 0, 0);
-	} else
+	if ((media == ide_floppy || media == ide_tape) && drv_req)
+		ide_complete_rq(drive, 0);
+	else
 		ide_end_request(drive, 0, 0);
 }
 
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 35469f3069a2..fc61bbef3bb9 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -461,22 +461,6 @@ static void ide_tape_kfree_buffer(idetape_tape_t *tape)
 	}
 }
 
-static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
-{
-	struct request *rq = drive->hwif->rq;
-
-	debug_log(DBG_PROCS, "Enter %s\n", __func__);
-
-	rq->errors = uptodate ? 0 : IDE_DRV_ERROR_GENERAL;
-
-	if (uptodate == 0)
-		drive->failed_pc = NULL;
-
-	ide_complete_rq(drive, 0);
-
-	return 0;
-}
-
 static void ide_tape_handle_dsc(ide_drive_t *);
 
 static void ide_tape_callback(ide_drive_t *drive, int dsc)
@@ -2306,7 +2290,6 @@ static struct ide_driver idetape_driver = {
 	.remove			= ide_tape_remove,
 	.version		= IDETAPE_VERSION,
 	.do_request		= idetape_do_request,
-	.end_request		= idetape_end_request,
 #ifdef CONFIG_IDE_PROC_FS
 	.proc_entries		= ide_tape_proc_entries,
 	.proc_devsets		= ide_tape_proc_devsets,
diff --git a/include/linux/ide.h b/include/linux/ide.h
index aece06a4930f..c2cdf7750185 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -427,7 +427,6 @@ struct ide_disk_ops {
 					int);
 	ide_startstop_t	(*do_request)(struct ide_drive_s *, struct request *,
 				      sector_t);
-	int		(*end_request)(struct ide_drive_s *, int, int);
 	int		(*ioctl)(struct ide_drive_s *, struct block_device *,
 				 fmode_t, unsigned int, unsigned long);
 };
@@ -1098,7 +1097,6 @@ void ide_check_pm_state(ide_drive_t *, struct request *);
 struct ide_driver {
 	const char			*version;
 	ide_startstop_t	(*do_request)(ide_drive_t *, struct request *, sector_t);
-	int		(*end_request)(ide_drive_t *, int, int);
 	struct device_driver	gen_driver;
 	int		(*probe)(ide_drive_t *);
 	void		(*remove)(ide_drive_t *);
-- 
cgit v1.2.3


From 03a2faaea8f44edfe583ddf1240948019becfbe4 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:36 +0100
Subject: ide: return request status from ->pc_callback method

Make ->pc_callback method return request status and then move
the request completion from ->pc_callback to ide_pc_intr().

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c  | 12 +++++++++++-
 drivers/ide/ide-floppy.c | 12 ++++--------
 drivers/ide/ide-tape.c   | 10 ++--------
 include/linux/ide.h      |  2 +-
 4 files changed, 18 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index f44474b0adae..f72b5a675435 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -357,6 +357,8 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 
 	/* No more interrupts */
 	if ((stat & ATA_DRQ) == 0) {
+		int uptodate;
+
 		debug_log("Packet command completed, %d bytes transferred\n",
 			  pc->xferred);
 
@@ -395,7 +397,15 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 			dsc = 1;
 
 		/* Command finished - Call the callback function */
-		drive->pc_callback(drive, dsc);
+		uptodate = drive->pc_callback(drive, dsc);
+
+		if (uptodate == 0)
+			drive->failed_pc = NULL;
+
+		if (blk_special_request(rq))
+			ide_complete_rq(drive, 0);
+		else
+			ide_end_request(drive, uptodate, 0);
 
 		return ide_stopped;
 	}
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index ab870a08d62b..5625946739ad 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -71,7 +71,7 @@ static void idefloppy_update_buffers(ide_drive_t *drive,
 		ide_end_request(drive, 1, 0);
 }
 
-static void ide_floppy_callback(ide_drive_t *drive, int dsc)
+static int ide_floppy_callback(ide_drive_t *drive, int dsc)
 {
 	struct ide_disk_obj *floppy = drive->driver_data;
 	struct ide_atapi_pc *pc = drive->pc;
@@ -108,14 +108,10 @@ static void ide_floppy_callback(ide_drive_t *drive, int dsc)
 			       "Aborting request!\n");
 	}
 
-	if (uptodate == 0)
-		drive->failed_pc = NULL;
-
-	if (blk_special_request(rq)) {
+	if (blk_special_request(rq))
 		rq->errors = uptodate ? 0 : IDE_DRV_ERROR_GENERAL;
-		ide_complete_rq(drive, 0);
-	} else
-		ide_end_request(drive, uptodate, 0);
+
+	return uptodate;
 }
 
 static void ide_floppy_report_error(struct ide_disk_obj *floppy,
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index fc61bbef3bb9..a42e49c6cc3f 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -463,7 +463,7 @@ static void ide_tape_kfree_buffer(idetape_tape_t *tape)
 
 static void ide_tape_handle_dsc(ide_drive_t *);
 
-static void ide_tape_callback(ide_drive_t *drive, int dsc)
+static int ide_tape_callback(ide_drive_t *drive, int dsc)
 {
 	idetape_tape_t *tape = drive->driver_data;
 	struct ide_atapi_pc *pc = drive->pc;
@@ -530,13 +530,7 @@ static void ide_tape_callback(ide_drive_t *drive, int dsc)
 
 	rq->errors = err;
 
-	if (uptodate == 0)
-		drive->failed_pc = NULL;
-
-	if (blk_special_request(rq))
-		ide_complete_rq(drive, 0);
-	else
-		ide_end_request(drive, uptodate, 0);
+	return uptodate;
 }
 
 /*
diff --git a/include/linux/ide.h b/include/linux/ide.h
index c2cdf7750185..9127d87cfa93 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -619,7 +619,7 @@ struct ide_drive_s {
 	struct ide_atapi_pc *failed_pc;
 
 	/* callback for packet commands */
-	void (*pc_callback)(struct ide_drive_s *, int);
+	int  (*pc_callback)(struct ide_drive_s *, int);
 
 	void (*pc_update_buffers)(struct ide_drive_s *, struct ide_atapi_pc *);
 	int  (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *,
-- 
cgit v1.2.3


From e6830a86c260d73c6f370aa7ed17ee6c71e5ee05 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:37 +0100
Subject: ide: call ide_build_sglist() prior to ->dma_setup (v2)

* Re-map sg table if needed in ide_build_sglist().

* Move ide_build_sglist() call from ->dma_setup to its users.

* Un-export ide_build_sglist().

v2:
* Build fix for CONFIG_BLK_DEV_IDEDMA=n (noticed by Randy Dunlap).

There should be no functional changes caused by this patch.

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/au1xxx-ide.c   |  7 +------
 drivers/ide/icside.c       |  6 ------
 drivers/ide/ide-atapi.c    | 19 ++++++++++++++-----
 drivers/ide/ide-dma-sff.c  |  4 ----
 drivers/ide/ide-dma.c      |  5 +++--
 drivers/ide/ide-taskfile.c |  1 +
 drivers/ide/pmac.c         |  7 +------
 drivers/ide/sgiioc4.c      | 10 ++--------
 drivers/ide/tx4939ide.c    |  4 ----
 include/linux/ide.h        |  2 ++
 10 files changed, 24 insertions(+), 41 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
index 82f153810eb9..3fc3ced8192c 100644
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -211,21 +211,16 @@ static void auide_set_dma_mode(ide_drive_t *drive, const u8 speed)
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
 static int auide_build_dmatable(ide_drive_t *drive)
 {
-	int i, iswrite, count = 0;
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->rq;
 	_auide_hwif *ahwif = &auide_hwif;
 	struct scatterlist *sg;
+	int i = hwif->sg_nents, iswrite, count = 0;
 
 	iswrite = (rq_data_dir(rq) == WRITE);
 	/* Save for interrupt context */
 	ahwif->drive = drive;
 
-	hwif->sg_nents = i = ide_build_sglist(drive, rq);
-
-	if (!i)
-		return 0;
-
 	/* fill the descriptors */
 	sg = hwif->sg_table;
 	while (i && sg_dma_len(sg)) {
diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c
index cf0522f937c1..78fc36f98d29 100644
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -325,12 +325,6 @@ static int icside_dma_setup(ide_drive_t *drive)
 	 */
 	BUG_ON(dma_channel_active(ec->dma));
 
-	hwif->sg_nents = ide_build_sglist(drive, rq);
-	if (hwif->sg_nents == 0) {
-		ide_map_sg(drive, rq);
-		return 1;
-	}
-
 	/*
 	 * Ensure that we have the right interrupt routed.
 	 */
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index f72b5a675435..2b9ac2106674 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -631,18 +631,23 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
 	struct ide_atapi_pc *pc;
 	ide_hwif_t *hwif = drive->hwif;
 	ide_expiry_t *expiry = NULL;
+	struct request *rq = hwif->rq;
 	unsigned int timeout;
 	u32 tf_flags;
 	u16 bcount;
 
 	if (dev_is_idecd(drive)) {
 		tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
-		bcount = ide_cd_get_xferlen(hwif->rq);
+		bcount = ide_cd_get_xferlen(rq);
 		expiry = ide_cd_expiry;
 		timeout = ATAPI_WAIT_PC;
 
-		if (drive->dma)
-			drive->dma = !hwif->dma_ops->dma_setup(drive);
+		if (drive->dma) {
+			if (ide_build_sglist(drive, rq))
+				drive->dma = !hwif->dma_ops->dma_setup(drive);
+			else
+				drive->dma = 0;
+		}
 	} else {
 		pc = drive->pc;
 
@@ -661,8 +666,12 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
 		}
 
 		if ((pc->flags & PC_FLAG_DMA_OK) &&
-		     (drive->dev_flags & IDE_DFLAG_USING_DMA))
-			drive->dma = !hwif->dma_ops->dma_setup(drive);
+		     (drive->dev_flags & IDE_DFLAG_USING_DMA)) {
+			if (ide_build_sglist(drive, rq))
+				drive->dma = !hwif->dma_ops->dma_setup(drive);
+			else
+				drive->dma = 0;
+		}
 
 		if (!drive->dma)
 			pc->flags &= ~PC_FLAG_DMA_OK;
diff --git a/drivers/ide/ide-dma-sff.c b/drivers/ide/ide-dma-sff.c
index 123d393658af..22b3e751d19b 100644
--- a/drivers/ide/ide-dma-sff.c
+++ b/drivers/ide/ide-dma-sff.c
@@ -120,10 +120,6 @@ int ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	struct scatterlist *sg;
 	u8 is_trm290 = !!(hwif->host_flags & IDE_HFLAG_TRM290);
 
-	hwif->sg_nents = ide_build_sglist(drive, rq);
-	if (hwif->sg_nents == 0)
-		return 0;
-
 	for_each_sg(hwif->sg_table, sg, hwif->sg_nents, i) {
 		u32 cur_addr, cur_len, xcount, bcount;
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index a878f4734f81..12c11b71402e 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -138,14 +138,15 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 		hwif->sg_dma_direction = DMA_TO_DEVICE;
 
 	i = dma_map_sg(hwif->dev, sg, hwif->sg_nents, hwif->sg_dma_direction);
-	if (i) {
+	if (i == 0)
+		ide_map_sg(drive, rq);
+	else {
 		hwif->orig_sg_nents = hwif->sg_nents;
 		hwif->sg_nents = i;
 	}
 
 	return i;
 }
-EXPORT_SYMBOL_GPL(ide_build_sglist);
 
 /**
  *	ide_destroy_dmatable	-	clean up DMA mapping
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 15bbfc1dcd28..925fb9241893 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -103,6 +103,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
 		return ide_started;
 	default:
 		if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0 ||
+		    ide_build_sglist(drive, hwif->rq) == 0 ||
 		    dma_ops->dma_setup(drive))
 			return ide_stopped;
 		dma_ops->dma_exec_cmd(drive, tf->command);
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index 74625e821a43..904fb54668e8 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -1429,10 +1429,10 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	pmac_ide_hwif_t *pmif =
 		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
 	struct dbdma_cmd *table;
-	int i, count = 0;
 	volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
 	struct scatterlist *sg;
 	int wr = (rq_data_dir(rq) == WRITE);
+	int i = hwif->sg_nents, count = 0;
 
 	/* DMA table is already aligned */
 	table = (struct dbdma_cmd *) pmif->dma_table_cpu;
@@ -1442,11 +1442,6 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	while (readl(&dma->status) & RUN)
 		udelay(1);
 
-	hwif->sg_nents = i = ide_build_sglist(drive, rq);
-
-	if (!i)
-		return 0;
-
 	/* Build DBDMA commands list */
 	sg = hwif->sg_table;
 	while (i && sg_dma_len(sg)) {
diff --git a/drivers/ide/sgiioc4.c b/drivers/ide/sgiioc4.c
index 1cffe70f385d..ab9433a7ad1f 100644
--- a/drivers/ide/sgiioc4.c
+++ b/drivers/ide/sgiioc4.c
@@ -429,15 +429,9 @@ sgiioc4_build_dma_table(ide_drive_t * drive, struct request *rq, int ddir)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	unsigned int *table = hwif->dmatable_cpu;
-	unsigned int count = 0, i = 1;
-	struct scatterlist *sg;
+	unsigned int count = 0, i = hwif->sg_nents;
+	struct scatterlist *sg = hwif->sg_table;
 
-	hwif->sg_nents = i = ide_build_sglist(drive, rq);
-
-	if (!i)
-		return 0;	/* sglist of length Zero */
-
-	sg = hwif->sg_table;
 	while (i && sg_dma_len(sg)) {
 		dma_addr_t cur_addr;
 		int cur_len;
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index f0033eb2e885..ee86688d8461 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -240,10 +240,6 @@ static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	int i;
 	struct scatterlist *sg;
 
-	hwif->sg_nents = ide_build_sglist(drive, rq);
-	if (hwif->sg_nents == 0)
-		return 0;
-
 	for_each_sg(hwif->sg_table, sg, hwif->sg_nents, i) {
 		u32 cur_addr, cur_len, bcount;
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 9127d87cfa93..2ee236d1f3ac 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1477,6 +1477,8 @@ static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
 static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
 static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
 static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
+static inline int ide_build_sglist(ide_drive_t *drive,
+				   struct request *rq) { return 0; }
 #endif /* CONFIG_BLK_DEV_IDEDMA */
 
 #ifdef CONFIG_BLK_DEV_IDEACPI
-- 
cgit v1.2.3


From 22aa4b32a19b1f231d4ce7e9af6354b577a22a35 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:37 +0100
Subject: ide: remove ide_task_t typedef

While at it:
- rename struct ide_task_s to struct ide_cmd
- remove stale comments from idedisk_{read_native,set}_max_address()
- drop unused 'cmd' argument from ide_{cmd,task}_ioctl()
- drop unused 'task' argument from tx4939ide_tf_load_fixup()
- rename ide_complete_task() to ide_complete_cmd()
- use consistent naming for struct ide_cmd variables

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/at91_ide.c      |  62 +++++++++----------
 drivers/ide/ide-acpi.c      |  10 +--
 drivers/ide/ide-atapi.c     |  42 ++++++-------
 drivers/ide/ide-disk.c      | 121 ++++++++++++++++++------------------
 drivers/ide/ide-disk_proc.c |  23 +++----
 drivers/ide/ide-eh.c        |   6 +-
 drivers/ide/ide-h8300.c     |  62 +++++++++----------
 drivers/ide/ide-io-std.c    |  62 +++++++++----------
 drivers/ide/ide-io.c        |  40 ++++++------
 drivers/ide/ide-ioctls.c    |  44 ++++++-------
 drivers/ide/ide-iops.c      |  30 ++++-----
 drivers/ide/ide-lib.c       |  20 +++---
 drivers/ide/ide-park.c      |  17 ++---
 drivers/ide/ide-pm.c        |  32 +++++-----
 drivers/ide/ide-probe.c     |  18 +++---
 drivers/ide/ide-proc.c      |  16 ++---
 drivers/ide/ide-taskfile.c  | 148 +++++++++++++++++++++++---------------------
 drivers/ide/ns87415.c       |  30 ++++-----
 drivers/ide/scc_pata.c      |  62 +++++++++----------
 drivers/ide/tx4938ide.c     |  62 +++++++++----------
 drivers/ide/tx4939ide.c     |  75 +++++++++++-----------
 include/linux/ide.h         |  26 ++++----
 22 files changed, 511 insertions(+), 497 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c
index 6eabf9e31290..6be7d87382ab 100644
--- a/drivers/ide/at91_ide.c
+++ b/drivers/ide/at91_ide.c
@@ -185,55 +185,55 @@ static void ide_mm_outb(u8 value, unsigned long port)
 	writeb(value, (void __iomem *) port);
 }
 
-static void at91_ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+static void at91_ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
-	u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
+	struct ide_taskfile *tf = &cmd->tf;
+	u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
 
-	if (task->tf_flags & IDE_FTFLAG_FLAGGED)
+	if (cmd->tf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->tf_flags & IDE_FTFLAG_OUT_DATA) {
+	if (cmd->tf_flags & IDE_FTFLAG_OUT_DATA) {
 		u16 data = (tf->hob_data << 8) | tf->data;
 
 		at91_ide_output_data(drive, NULL, &data, 2);
 	}
 
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
 		ide_mm_outb(tf->hob_feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
 		ide_mm_outb(tf->hob_nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
 		ide_mm_outb(tf->hob_lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
 		ide_mm_outb(tf->hob_lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
 		ide_mm_outb(tf->hob_lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
 		ide_mm_outb(tf->feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
 		ide_mm_outb(tf->nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
 		ide_mm_outb(tf->lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
 		ide_mm_outb(tf->lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
 		ide_mm_outb(tf->lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
 		ide_mm_outb((tf->device & HIHI) | drive->select, io_ports->device_addr);
 }
 
-static void at91_ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+static void at91_ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 
-	if (task->tf_flags & IDE_FTFLAG_IN_DATA) {
+	if (cmd->tf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data;
 
 		at91_ide_input_data(drive, NULL, &data, 2);
@@ -244,31 +244,31 @@ static void at91_ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 	/* be sure we're looking at the low order bits */
 	ide_mm_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
-	if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE)
 		tf->feature = ide_mm_inb(io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = ide_mm_inb(io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
 		tf->lbal   = ide_mm_inb(io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
 		tf->lbam   = ide_mm_inb(io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
 		tf->lbah   = ide_mm_inb(io_ports->lbah_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
 		tf->device = ide_mm_inb(io_ports->device_addr);
 
-	if (task->tf_flags & IDE_TFLAG_LBA48) {
+	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
 		ide_mm_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = ide_mm_inb(io_ports->feature_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
 			tf->hob_nsect   = ide_mm_inb(io_ports->nsect_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
 			tf->hob_lbal    = ide_mm_inb(io_ports->lbal_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
 			tf->hob_lbam    = ide_mm_inb(io_ports->lbam_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
 			tf->hob_lbah    = ide_mm_inb(io_ports->lbah_addr);
 	}
 }
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 5b704f1ea90c..12f436951bff 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -304,7 +304,7 @@ static int do_drive_set_taskfiles(ide_drive_t *drive,
 	/* send all taskfile registers (0x1f1-0x1f7) *in*that*order* */
 	for (ix = 0; ix < gtf_count; ix++) {
 		u8 *gtf = (u8 *)(gtf_address + ix * REGS_PER_GTF);
-		ide_task_t task;
+		struct ide_cmd cmd;
 
 		DEBPRINT("(0x1f1-1f7): "
 			 "hex: %02x %02x %02x %02x %02x %02x %02x\n",
@@ -317,11 +317,11 @@ static int do_drive_set_taskfiles(ide_drive_t *drive,
 		}
 
 		/* convert GTF to taskfile */
-		memset(&task, 0, sizeof(ide_task_t));
-		memcpy(&task.tf_array[7], gtf, REGS_PER_GTF);
-		task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+		memset(&cmd, 0, sizeof(cmd));
+		memcpy(&cmd.tf_array[7], gtf, REGS_PER_GTF);
+		cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
-		err = ide_no_data_taskfile(drive, &task);
+		err = ide_no_data_taskfile(drive, &cmd);
 		if (err) {
 			printk(KERN_ERR "%s: ide_no_data_taskfile failed: %u\n",
 					__func__, err);
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 2b9ac2106674..92c6ef6feb57 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -302,16 +302,16 @@ EXPORT_SYMBOL_GPL(ide_cd_get_xferlen);
 
 void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason)
 {
-	ide_task_t task;
+	struct ide_cmd cmd;
 
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM |
-			IDE_TFLAG_IN_NSECT;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM |
+		       IDE_TFLAG_IN_NSECT;
 
-	drive->hwif->tp_ops->tf_read(drive, &task);
+	drive->hwif->tp_ops->tf_read(drive, &cmd);
 
-	*bcount = (task.tf.lbah << 8) | task.tf.lbam;
-	*ireason = task.tf.nsect & 3;
+	*bcount = (cmd.tf.lbah << 8) | cmd.tf.lbam;
+	*ireason = cmd.tf.nsect & 3;
 }
 EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason);
 
@@ -482,32 +482,32 @@ next_irq:
 static void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	ide_task_t task;
+	struct ide_cmd cmd;
 	u8 dma = drive->dma;
 
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
-			IDE_TFLAG_OUT_FEATURE | tf_flags;
-	task.tf.feature = dma;		/* Use PIO/DMA */
-	task.tf.lbam    = bcount & 0xff;
-	task.tf.lbah    = (bcount >> 8) & 0xff;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
+		       IDE_TFLAG_OUT_FEATURE | tf_flags;
+	cmd.tf.feature = dma;		/* Use PIO/DMA */
+	cmd.tf.lbam    = bcount & 0xff;
+	cmd.tf.lbah    = (bcount >> 8) & 0xff;
 
-	ide_tf_dump(drive->name, &task.tf);
+	ide_tf_dump(drive->name, &cmd.tf);
 	hwif->tp_ops->set_irq(hwif, 1);
 	SELECT_MASK(drive, 0);
-	hwif->tp_ops->tf_load(drive, &task);
+	hwif->tp_ops->tf_load(drive, &cmd);
 }
 
 static u8 ide_read_ireason(ide_drive_t *drive)
 {
-	ide_task_t task;
+	struct ide_cmd cmd;
 
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_IN_NSECT;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf_flags = IDE_TFLAG_IN_NSECT;
 
-	drive->hwif->tp_ops->tf_read(drive, &task);
+	drive->hwif->tp_ops->tf_read(drive, &cmd);
 
-	return task.tf.nsect & 3;
+	return cmd.tf.nsect & 3;
 }
 
 static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason)
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 912be155a8c1..6647cb8bd910 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -62,24 +62,24 @@ static const u8 ide_data_phases[] = {
 	TASKFILE_OUT_DMA,
 };
 
-static void ide_tf_set_cmd(ide_drive_t *drive, ide_task_t *task, u8 dma)
+static void ide_tf_set_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 dma)
 {
 	u8 index, lba48, write;
 
-	lba48 = (task->tf_flags & IDE_TFLAG_LBA48) ? 2 : 0;
-	write = (task->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0;
+	lba48 = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 2 : 0;
+	write = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0;
 
 	if (dma)
 		index = 8;
 	else
 		index = drive->mult_count ? 0 : 4;
 
-	task->tf.command = ide_rw_cmds[index + lba48 + write];
+	cmd->tf.command = ide_rw_cmds[index + lba48 + write];
 
 	if (dma)
 		index = 8; /* fixup index */
 
-	task->data_phase = ide_data_phases[index / 2 + write];
+	cmd->data_phase = ide_data_phases[index / 2 + write];
 }
 
 /*
@@ -93,8 +93,8 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 	u16 nsectors		= (u16)rq->nr_sectors;
 	u8 lba48		= !!(drive->dev_flags & IDE_DFLAG_LBA48);
 	u8 dma			= !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
-	ide_task_t		task;
-	struct ide_taskfile	*tf = &task.tf;
+	struct ide_cmd		cmd;
+	struct ide_taskfile	*tf = &cmd.tf;
 	ide_startstop_t		rc;
 
 	if ((hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) && lba48 && dma) {
@@ -109,8 +109,8 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 		ide_map_sg(drive, rq);
 	}
 
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
 	if (drive->dev_flags & IDE_DFLAG_LBA) {
 		if (lba48) {
@@ -129,7 +129,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 			tf->lbam   = (u8)(block >>  8);
 			tf->lbah   = (u8)(block >> 16);
 
-			task.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
+			cmd.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
 		} else {
 			tf->nsect  = nsectors & 0xff;
 			tf->lbal   = block;
@@ -157,19 +157,19 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 	}
 
 	if (rq_data_dir(rq))
-		task.tf_flags |= IDE_TFLAG_WRITE;
+		cmd.tf_flags |= IDE_TFLAG_WRITE;
 
-	ide_tf_set_cmd(drive, &task, dma);
-	task.rq = rq;
+	ide_tf_set_cmd(drive, &cmd, dma);
+	cmd.rq = rq;
 
-	rc = do_rw_taskfile(drive, &task);
+	rc = do_rw_taskfile(drive, &cmd);
 
 	if (rc == ide_stopped && dma) {
 		/* fallback to PIO */
-		task.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK;
-		ide_tf_set_cmd(drive, &task, 0);
+		cmd.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK;
+		ide_tf_set_cmd(drive, &cmd, 0);
 		ide_init_sg_cmd(drive, rq);
-		rc = do_rw_taskfile(drive, &task);
+		rc = do_rw_taskfile(drive, &cmd);
 	}
 
 	return rc;
@@ -213,22 +213,22 @@ static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
  */
 static u64 idedisk_read_native_max_address(ide_drive_t *drive, int lba48)
 {
-	ide_task_t args;
-	struct ide_taskfile *tf = &args.tf;
+	struct ide_cmd cmd;
+	struct ide_taskfile *tf = &cmd.tf;
 	u64 addr = 0;
 
-	/* Create IDE/ATA command request structure */
-	memset(&args, 0, sizeof(ide_task_t));
+	memset(&cmd, 0, sizeof(cmd));
 	if (lba48)
 		tf->command = ATA_CMD_READ_NATIVE_MAX_EXT;
 	else
 		tf->command = ATA_CMD_READ_NATIVE_MAX;
 	tf->device  = ATA_LBA;
-	args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 	if (lba48)
-		args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
-	/* submit command request */
-	ide_no_data_taskfile(drive, &args);
+		cmd.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
+
+	ide_no_data_taskfile(drive, &cmd);
 
 	/* if OK, compute maximum address value */
 	if ((tf->status & 0x01) == 0)
@@ -243,13 +243,13 @@ static u64 idedisk_read_native_max_address(ide_drive_t *drive, int lba48)
  */
 static u64 idedisk_set_max_address(ide_drive_t *drive, u64 addr_req, int lba48)
 {
-	ide_task_t args;
-	struct ide_taskfile *tf = &args.tf;
+	struct ide_cmd cmd;
+	struct ide_taskfile *tf = &cmd.tf;
 	u64 addr_set = 0;
 
 	addr_req--;
-	/* Create IDE/ATA command request structure */
-	memset(&args, 0, sizeof(ide_task_t));
+
+	memset(&cmd, 0, sizeof(cmd));
 	tf->lbal     = (addr_req >>  0) & 0xff;
 	tf->lbam     = (addr_req >>= 8) & 0xff;
 	tf->lbah     = (addr_req >>= 8) & 0xff;
@@ -263,11 +263,13 @@ static u64 idedisk_set_max_address(ide_drive_t *drive, u64 addr_req, int lba48)
 		tf->command  = ATA_CMD_SET_MAX;
 	}
 	tf->device |= ATA_LBA;
-	args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 	if (lba48)
-		args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
-	/* submit command request */
-	ide_no_data_taskfile(drive, &args);
+		cmd.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB);
+
+	ide_no_data_taskfile(drive, &cmd);
+
 	/* if OK, compute maximum address value */
 	if ((tf->status & 0x01) == 0)
 		addr_set = ide_get_lba_addr(tf, lba48) + 1;
@@ -386,24 +388,24 @@ static int ide_disk_get_capacity(ide_drive_t *drive)
 static void idedisk_prepare_flush(struct request_queue *q, struct request *rq)
 {
 	ide_drive_t *drive = q->queuedata;
-	ide_task_t *task = kmalloc(sizeof(*task), GFP_ATOMIC);
+	struct ide_cmd *cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC);
 
 	/* FIXME: map struct ide_taskfile on rq->cmd[] */
-	BUG_ON(task == NULL);
+	BUG_ON(cmd == NULL);
 
-	memset(task, 0, sizeof(*task));
+	memset(cmd, 0, sizeof(*cmd));
 	if (ata_id_flush_ext_enabled(drive->id) &&
 	    (drive->capacity64 >= (1UL << 28)))
-		task->tf.command = ATA_CMD_FLUSH_EXT;
+		cmd->tf.command = ATA_CMD_FLUSH_EXT;
 	else
-		task->tf.command = ATA_CMD_FLUSH;
-	task->tf_flags	 = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE |
+		cmd->tf.command = ATA_CMD_FLUSH;
+	cmd->tf_flags	 = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE |
 			   IDE_TFLAG_DYN;
-	task->data_phase = TASKFILE_NO_DATA;
+	cmd->data_phase = TASKFILE_NO_DATA;
 
 	rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
 	rq->cmd_flags |= REQ_SOFTBARRIER;
-	rq->special = task;
+	rq->special = cmd;
 }
 
 ide_devset_get(multcount, mult_count);
@@ -453,15 +455,15 @@ static int set_nowerr(ide_drive_t *drive, int arg)
 
 static int ide_do_setfeature(ide_drive_t *drive, u8 feature, u8 nsect)
 {
-	ide_task_t task;
+	struct ide_cmd cmd;
 
-	memset(&task, 0, sizeof(task));
-	task.tf.feature = feature;
-	task.tf.nsect   = nsect;
-	task.tf.command = ATA_CMD_SET_FEATURES;
-	task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf.feature = feature;
+	cmd.tf.nsect   = nsect;
+	cmd.tf.command = ATA_CMD_SET_FEATURES;
+	cmd.tf_flags   = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
-	return ide_no_data_taskfile(drive, &task);
+	return ide_no_data_taskfile(drive, &cmd);
 }
 
 static void update_ordered(ide_drive_t *drive)
@@ -528,15 +530,16 @@ static int set_wcache(ide_drive_t *drive, int arg)
 
 static int do_idedisk_flushcache(ide_drive_t *drive)
 {
-	ide_task_t args;
+	struct ide_cmd cmd;
 
-	memset(&args, 0, sizeof(ide_task_t));
+	memset(&cmd, 0, sizeof(cmd));
 	if (ata_id_flush_ext_enabled(drive->id))
-		args.tf.command = ATA_CMD_FLUSH_EXT;
+		cmd.tf.command = ATA_CMD_FLUSH_EXT;
 	else
-		args.tf.command = ATA_CMD_FLUSH;
-	args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	return ide_no_data_taskfile(drive, &args);
+		cmd.tf.command = ATA_CMD_FLUSH;
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+
+	return ide_no_data_taskfile(drive, &cmd);
 }
 
 ide_devset_get(acoustic, acoustic);
@@ -708,17 +711,17 @@ static int ide_disk_init_media(ide_drive_t *drive, struct gendisk *disk)
 static int ide_disk_set_doorlock(ide_drive_t *drive, struct gendisk *disk,
 				 int on)
 {
-	ide_task_t task;
+	struct ide_cmd cmd;
 	int ret;
 
 	if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0)
 		return 0;
 
-	memset(&task, 0, sizeof(task));
-	task.tf.command = on ? ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK;
-	task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf.command = on ? ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK;
+	cmd.tf_flags   = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
-	ret = ide_no_data_taskfile(drive, &task);
+	ret = ide_no_data_taskfile(drive, &cmd);
 
 	if (ret)
 		drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
diff --git a/drivers/ide/ide-disk_proc.c b/drivers/ide/ide-disk_proc.c
index 5766c1f62ad2..afe4f47e9e19 100644
--- a/drivers/ide/ide-disk_proc.c
+++ b/drivers/ide/ide-disk_proc.c
@@ -6,33 +6,34 @@
 
 static int smart_enable(ide_drive_t *drive)
 {
-	ide_task_t args;
-	struct ide_taskfile *tf = &args.tf;
+	struct ide_cmd cmd;
+	struct ide_taskfile *tf = &cmd.tf;
 
-	memset(&args, 0, sizeof(ide_task_t));
+	memset(&cmd, 0, sizeof(cmd));
 	tf->feature = ATA_SMART_ENABLE;
 	tf->lbam    = ATA_SMART_LBAM_PASS;
 	tf->lbah    = ATA_SMART_LBAH_PASS;
 	tf->command = ATA_CMD_SMART;
-	args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	return ide_no_data_taskfile(drive, &args);
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+
+	return ide_no_data_taskfile(drive, &cmd);
 }
 
 static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
 {
-	ide_task_t args;
-	struct ide_taskfile *tf = &args.tf;
+	struct ide_cmd cmd;
+	struct ide_taskfile *tf = &cmd.tf;
 
-	memset(&args, 0, sizeof(ide_task_t));
+	memset(&cmd, 0, sizeof(cmd));
 	tf->feature = sub_cmd;
 	tf->nsect   = 0x01;
 	tf->lbam    = ATA_SMART_LBAM_PASS;
 	tf->lbah    = ATA_SMART_LBAH_PASS;
 	tf->command = ATA_CMD_SMART;
-	args.tf_flags	= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	args.data_phase	= TASKFILE_IN;
+	cmd.tf_flags	= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	cmd.data_phase	= TASKFILE_IN;
 
-	return ide_raw_taskfile(drive, &args, buf, 1);
+	return ide_raw_taskfile(drive, &cmd, buf, 1);
 }
 
 static int proc_idedisk_read_cache
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
index e2c04886616f..f6e1a82a3cc5 100644
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -125,10 +125,10 @@ ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat)
 	if (!blk_fs_request(rq)) {
 		rq->errors = 1;
 		if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
-			ide_task_t *task = rq->special;
+			struct ide_cmd *cmd = rq->special;
 
-			if (task)
-				ide_complete_task(drive, task, stat, err);
+			if (cmd)
+				ide_complete_cmd(drive, cmd, stat, err);
 		} else if (blk_pm_request(rq)) {
 			ide_complete_pm_rq(drive, rq);
 			return ide_stopped;
diff --git a/drivers/ide/ide-h8300.c b/drivers/ide/ide-h8300.c
index 11e937485bff..c7883f23c66a 100644
--- a/drivers/ide/ide-h8300.c
+++ b/drivers/ide/ide-h8300.c
@@ -44,53 +44,53 @@ static u16 mm_inw(unsigned long a)
 	return r;
 }
 
-static void h8300_tf_load(ide_drive_t *drive, ide_task_t *task)
+static void h8300_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
-	u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
+	struct ide_taskfile *tf = &cmd->tf;
+	u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
 
-	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
+	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA)
+	if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA)
 		mm_outw((tf->hob_data << 8) | tf->data, io_ports->data_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
 		outb(tf->hob_feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
 		outb(tf->hob_nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
 		outb(tf->hob_lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
 		outb(tf->hob_lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
 		outb(tf->hob_lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
 		outb(tf->feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
 		outb(tf->nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
 		outb(tf->lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
 		outb(tf->lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
 		outb(tf->lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
 		outb((tf->device & HIHI) | drive->select,
 		     io_ports->device_addr);
 }
 
-static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task)
+static void h8300_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 
-	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data = mm_inw(io_ports->data_addr);
 
 		tf->data = data & 0xff;
@@ -100,31 +100,31 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task)
 	/* be sure we're looking at the low order bits */
 	outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
-	if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE)
 		tf->feature = inb(io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = inb(io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
 		tf->lbal   = inb(io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
 		tf->lbam   = inb(io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
 		tf->lbah   = inb(io_ports->lbah_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
 		tf->device = inb(io_ports->device_addr);
 
-	if (task->tf_flags & IDE_TFLAG_LBA48) {
+	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
 		outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = inb(io_ports->feature_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
 			tf->hob_nsect   = inb(io_ports->nsect_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
 			tf->hob_lbal    = inb(io_ports->lbal_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
 			tf->hob_lbam    = inb(io_ports->lbam_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
 			tf->hob_lbah    = inb(io_ports->lbah_addr);
 	}
 }
diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c
index cad59f0bfbce..570c0cc4514d 100644
--- a/drivers/ide/ide-io-std.c
+++ b/drivers/ide/ide-io-std.c
@@ -82,24 +82,24 @@ void ide_set_irq(ide_hwif_t *hwif, int on)
 }
 EXPORT_SYMBOL_GPL(ide_set_irq);
 
-void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+void ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 	void (*tf_outb)(u8 addr, unsigned long port);
 	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-	u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
+	u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
 
 	if (mmio)
 		tf_outb = ide_mm_outb;
 	else
 		tf_outb = ide_outb;
 
-	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
+	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) {
 		u16 data = (tf->hob_data << 8) | tf->data;
 
 		if (mmio)
@@ -108,39 +108,39 @@ void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
 			outw(data, io_ports->data_addr);
 	}
 
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
 		tf_outb(tf->hob_feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
 		tf_outb(tf->hob_nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
 		tf_outb(tf->hob_lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
 		tf_outb(tf->hob_lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
 		tf_outb(tf->hob_lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
 		tf_outb(tf->feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
 		tf_outb(tf->nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
 		tf_outb(tf->lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
 		tf_outb(tf->lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
 		tf_outb(tf->lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
 		tf_outb((tf->device & HIHI) | drive->select,
 			 io_ports->device_addr);
 }
 EXPORT_SYMBOL_GPL(ide_tf_load);
 
-void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+void ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 	void (*tf_outb)(u8 addr, unsigned long port);
 	u8 (*tf_inb)(unsigned long port);
 	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
@@ -153,7 +153,7 @@ void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 		tf_inb  = ide_inb;
 	}
 
-	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data;
 
 		if (mmio)
@@ -168,31 +168,31 @@ void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 	/* be sure we're looking at the low order bits */
 	tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
-	if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE)
 		tf->feature = tf_inb(io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = tf_inb(io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
 		tf->lbal   = tf_inb(io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
 		tf->lbam   = tf_inb(io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
 		tf->lbah   = tf_inb(io_ports->lbah_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
 		tf->device = tf_inb(io_ports->device_addr);
 
-	if (task->tf_flags & IDE_TFLAG_LBA48) {
+	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
 		tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = tf_inb(io_ports->feature_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
 			tf->hob_nsect   = tf_inb(io_ports->nsect_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
 			tf->hob_lbal    = tf_inb(io_ports->lbal_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
 			tf->hob_lbam    = tf_inb(io_ports->lbam_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
 			tf->hob_lbah    = tf_inb(io_ports->lbah_addr);
 	}
 }
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 6eee41beec73..2900271c6ddd 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -144,21 +144,21 @@ int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
 }
 EXPORT_SYMBOL_GPL(ide_end_dequeued_request);
 
-void ide_complete_task(ide_drive_t *drive, ide_task_t *task, u8 stat, u8 err)
+void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 {
-	struct ide_taskfile *tf = &task->tf;
-	struct request *rq = task->rq;
+	struct ide_taskfile *tf = &cmd->tf;
+	struct request *rq = cmd->rq;
 
 	tf->error = err;
 	tf->status = stat;
 
-	drive->hwif->tp_ops->tf_read(drive, task);
+	drive->hwif->tp_ops->tf_read(drive, cmd);
 
 	if (rq && rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
-		memcpy(rq->special, task, sizeof(*task));
+		memcpy(rq->special, cmd, sizeof(*cmd));
 
-	if (task->tf_flags & IDE_TFLAG_DYN)
-		kfree(task);
+	if (cmd->tf_flags & IDE_TFLAG_DYN)
+		kfree(cmd);
 }
 
 void ide_complete_rq(ide_drive_t *drive, u8 err)
@@ -217,20 +217,20 @@ static void ide_tf_set_setmult_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
 static ide_startstop_t ide_disk_special(ide_drive_t *drive)
 {
 	special_t *s = &drive->special;
-	ide_task_t args;
+	struct ide_cmd cmd;
 
-	memset(&args, 0, sizeof(ide_task_t));
-	args.data_phase = TASKFILE_NO_DATA;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.data_phase = TASKFILE_NO_DATA;
 
 	if (s->b.set_geometry) {
 		s->b.set_geometry = 0;
-		ide_tf_set_specify_cmd(drive, &args.tf);
+		ide_tf_set_specify_cmd(drive, &cmd.tf);
 	} else if (s->b.recalibrate) {
 		s->b.recalibrate = 0;
-		ide_tf_set_restore_cmd(drive, &args.tf);
+		ide_tf_set_restore_cmd(drive, &cmd.tf);
 	} else if (s->b.set_multmode) {
 		s->b.set_multmode = 0;
-		ide_tf_set_setmult_cmd(drive, &args.tf);
+		ide_tf_set_setmult_cmd(drive, &cmd.tf);
 	} else if (s->all) {
 		int special = s->all;
 		s->all = 0;
@@ -238,10 +238,10 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive)
 		return ide_stopped;
 	}
 
-	args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE |
-			IDE_TFLAG_CUSTOM_HANDLER;
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE |
+		       IDE_TFLAG_CUSTOM_HANDLER;
 
-	do_rw_taskfile(drive, &args);
+	do_rw_taskfile(drive, &cmd);
 
 	return ide_started;
 }
@@ -315,10 +315,10 @@ EXPORT_SYMBOL_GPL(ide_init_sg_cmd);
 static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 		struct request *rq)
 {
-	ide_task_t *task = rq->special;
+	struct ide_cmd *cmd = rq->special;
 
-	if (task) {
-		switch (task->data_phase) {
+	if (cmd) {
+		switch (cmd->data_phase) {
 		case TASKFILE_MULTI_OUT:
 		case TASKFILE_OUT:
 		case TASKFILE_MULTI_IN:
@@ -329,7 +329,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 			break;
 		}
 
-		return do_rw_taskfile(drive, task);
+		return do_rw_taskfile(drive, cmd);
 	}
 
  	/*
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 1be263eb9c07..4953028a13d4 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -111,13 +111,13 @@ static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg)
 	return 0;
 }
 
-static int ide_cmd_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg)
+static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
 {
 	u8 *buf = NULL;
 	int bufsize = 0, err = 0;
 	u8 args[4], xfer_rate = 0;
-	ide_task_t tfargs;
-	struct ide_taskfile *tf = &tfargs.tf;
+	struct ide_cmd cmd;
+	struct ide_taskfile *tf = &cmd.tf;
 	u16 *id = drive->id;
 
 	if (NULL == (void *) arg) {
@@ -134,24 +134,24 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg)
 	if (copy_from_user(args, (void __user *)arg, 4))
 		return -EFAULT;
 
-	memset(&tfargs, 0, sizeof(ide_task_t));
+	memset(&cmd, 0, sizeof(cmd));
 	tf->feature = args[2];
 	if (args[0] == ATA_CMD_SMART) {
 		tf->nsect = args[3];
 		tf->lbal  = args[1];
 		tf->lbam  = 0x4f;
 		tf->lbah  = 0xc2;
-		tfargs.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_IN_NSECT;
+		cmd.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_IN_NSECT;
 	} else {
 		tf->nsect = args[1];
-		tfargs.tf_flags = IDE_TFLAG_OUT_FEATURE |
-				  IDE_TFLAG_OUT_NSECT | IDE_TFLAG_IN_NSECT;
+		cmd.tf_flags = IDE_TFLAG_OUT_FEATURE | IDE_TFLAG_OUT_NSECT |
+			       IDE_TFLAG_IN_NSECT;
 	}
 	tf->command = args[0];
-	tfargs.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA;
+	cmd.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA;
 
 	if (args[3]) {
-		tfargs.tf_flags |= IDE_TFLAG_IO_16BIT;
+		cmd.tf_flags |= IDE_TFLAG_IO_16BIT;
 		bufsize = SECTOR_SIZE * args[3];
 		buf = kzalloc(bufsize, GFP_KERNEL);
 		if (buf == NULL)
@@ -172,7 +172,7 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg)
 		}
 	}
 
-	err = ide_raw_taskfile(drive, &tfargs, buf, args[3]);
+	err = ide_raw_taskfile(drive, &cmd, buf, args[3]);
 
 	args[0] = tf->status;
 	args[1] = tf->error;
@@ -194,25 +194,25 @@ abort:
 	return err;
 }
 
-static int ide_task_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg)
+static int ide_task_ioctl(ide_drive_t *drive, unsigned long arg)
 {
 	void __user *p = (void __user *)arg;
 	int err = 0;
 	u8 args[7];
-	ide_task_t task;
+	struct ide_cmd cmd;
 
 	if (copy_from_user(args, p, 7))
 		return -EFAULT;
 
-	memset(&task, 0, sizeof(task));
-	memcpy(&task.tf_array[7], &args[1], 6);
-	task.tf.command = args[0];
-	task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	memset(&cmd, 0, sizeof(cmd));
+	memcpy(&cmd.tf_array[7], &args[1], 6);
+	cmd.tf.command = args[0];
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
-	err = ide_no_data_taskfile(drive, &task);
+	err = ide_no_data_taskfile(drive, &cmd);
 
-	args[0] = task.tf.command;
-	memcpy(&args[1], &task.tf_array[7], 6);
+	args[0] = cmd.tf.command;
+	memcpy(&args[1], &cmd.tf_array[7], 6);
 
 	if (copy_to_user(p, args, 7))
 		err = -EFAULT;
@@ -262,17 +262,17 @@ int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
 		if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
 			return -EACCES;
 		if (drive->media == ide_disk)
-			return ide_taskfile_ioctl(drive, cmd, arg);
+			return ide_taskfile_ioctl(drive, arg);
 		return -ENOMSG;
 #endif
 	case HDIO_DRIVE_CMD:
 		if (!capable(CAP_SYS_RAWIO))
 			return -EACCES;
-		return ide_cmd_ioctl(drive, cmd, arg);
+		return ide_cmd_ioctl(drive, arg);
 	case HDIO_DRIVE_TASK:
 		if (!capable(CAP_SYS_RAWIO))
 			return -EACCES;
-		return ide_task_ioctl(drive, cmd, arg);
+		return ide_task_ioctl(drive, arg);
 	case HDIO_DRIVE_RESET:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EACCES;
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 317c5dadd7c0..c3023de7270c 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -31,15 +31,15 @@ void SELECT_DRIVE(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	const struct ide_port_ops *port_ops = hwif->port_ops;
-	ide_task_t task;
+	struct ide_cmd cmd;
 
 	if (port_ops && port_ops->selectproc)
 		port_ops->selectproc(drive);
 
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_OUT_DEVICE;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf_flags = IDE_TFLAG_OUT_DEVICE;
 
-	drive->hwif->tp_ops->tf_load(drive, &task);
+	drive->hwif->tp_ops->tf_load(drive, &cmd);
 }
 
 void SELECT_MASK(ide_drive_t *drive, int mask)
@@ -52,14 +52,14 @@ void SELECT_MASK(ide_drive_t *drive, int mask)
 
 u8 ide_read_error(ide_drive_t *drive)
 {
-	ide_task_t task;
+	struct ide_cmd cmd;
 
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_IN_FEATURE;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf_flags = IDE_TFLAG_IN_FEATURE;
 
-	drive->hwif->tp_ops->tf_read(drive, &task);
+	drive->hwif->tp_ops->tf_read(drive, &cmd);
 
-	return task.tf.error;
+	return cmd.tf.error;
 }
 EXPORT_SYMBOL_GPL(ide_read_error);
 
@@ -329,7 +329,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
 	u16 *id = drive->id, i;
 	int error = 0;
 	u8 stat;
-	ide_task_t task;
+	struct ide_cmd cmd;
 
 #ifdef CONFIG_BLK_DEV_IDEDMA
 	if (hwif->dma_ops)	/* check if host supports DMA */
@@ -361,12 +361,12 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
 	udelay(1);
 	tp_ops->set_irq(hwif, 0);
 
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_OUT_FEATURE | IDE_TFLAG_OUT_NSECT;
-	task.tf.feature = SETFEATURES_XFER;
-	task.tf.nsect   = speed;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf_flags = IDE_TFLAG_OUT_FEATURE | IDE_TFLAG_OUT_NSECT;
+	cmd.tf.feature = SETFEATURES_XFER;
+	cmd.tf.nsect   = speed;
 
-	tp_ops->tf_load(drive, &task);
+	tp_ops->tf_load(drive, &cmd);
 
 	tp_ops->exec_command(hwif, ATA_CMD_SET_FEATURES);
 
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index f6c683dd2987..217b7fdf2b17 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -34,19 +34,19 @@ void ide_toggle_bounce(ide_drive_t *drive, int on)
 static void ide_dump_opcode(ide_drive_t *drive)
 {
 	struct request *rq = drive->hwif->rq;
-	ide_task_t *task = NULL;
+	struct ide_cmd *cmd = NULL;
 
 	if (!rq)
 		return;
 
 	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
-		task = rq->special;
+		cmd = rq->special;
 
 	printk(KERN_ERR "ide: failed opcode was: ");
-	if (task == NULL)
+	if (cmd == NULL)
 		printk(KERN_CONT "unknown\n");
 	else
-		printk(KERN_CONT "0x%02x\n", task->tf.command);
+		printk(KERN_CONT "0x%02x\n", cmd->tf.command);
 }
 
 u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48)
@@ -66,18 +66,18 @@ EXPORT_SYMBOL_GPL(ide_get_lba_addr);
 
 static void ide_dump_sector(ide_drive_t *drive)
 {
-	ide_task_t task;
-	struct ide_taskfile *tf = &task.tf;
+	struct ide_cmd cmd;
+	struct ide_taskfile *tf = &cmd.tf;
 	u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
 
-	memset(&task, 0, sizeof(task));
+	memset(&cmd, 0, sizeof(cmd));
 	if (lba48)
-		task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_HOB_LBA |
+		cmd.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_HOB_LBA |
 				IDE_TFLAG_LBA48;
 	else
-		task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_DEVICE;
+		cmd.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_DEVICE;
 
-	drive->hwif->tp_ops->tf_read(drive, &task);
+	drive->hwif->tp_ops->tf_read(drive, &cmd);
 
 	if (lba48 || (tf->device & ATA_LBA))
 		printk(KERN_CONT ", LBAsect=%llu",
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
index cddc7c778760..63c77f99a726 100644
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -63,10 +63,10 @@ out:
 
 ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
 {
-	ide_task_t task;
-	struct ide_taskfile *tf = &task.tf;
+	struct ide_cmd cmd;
+	struct ide_taskfile *tf = &cmd.tf;
 
-	memset(&task, 0, sizeof(task));
+	memset(&cmd, 0, sizeof(cmd));
 	if (rq->cmd[0] == REQ_PARK_HEADS) {
 		drive->sleep = *(unsigned long *)rq->special;
 		drive->dev_flags |= IDE_DFLAG_SLEEPING;
@@ -75,14 +75,15 @@ ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
 		tf->lbal = 0x4c;
 		tf->lbam = 0x4e;
 		tf->lbah = 0x55;
-		task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
+		cmd.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
 	} else		/* cmd == REQ_UNPARK_HEADS */
 		tf->command = ATA_CMD_CHK_POWER;
 
-	task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	task.rq = rq;
-	task.data_phase = TASKFILE_NO_DATA;
-	return do_rw_taskfile(drive, &task);
+	cmd.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	cmd.rq = rq;
+	cmd.data_phase = TASKFILE_NO_DATA;
+
+	return do_rw_taskfile(drive, &cmd);
 }
 
 ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index 74c7c2bbe0fd..5c9fc20f95b5 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -8,7 +8,7 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq;
 	struct request_pm_state rqpm;
-	ide_task_t args;
+	struct ide_cmd cmd;
 	int ret;
 
 	/* call ACPI _GTM only once */
@@ -16,10 +16,10 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 		ide_acpi_get_timing(hwif);
 
 	memset(&rqpm, 0, sizeof(rqpm));
-	memset(&args, 0, sizeof(args));
+	memset(&cmd, 0, sizeof(cmd));
 	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
 	rq->cmd_type = REQ_TYPE_PM_SUSPEND;
-	rq->special = &args;
+	rq->special = &cmd;
 	rq->data = &rqpm;
 	rqpm.pm_step = IDE_PM_START_SUSPEND;
 	if (mesg.event == PM_EVENT_PRETHAW)
@@ -42,7 +42,7 @@ int generic_ide_resume(struct device *dev)
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq;
 	struct request_pm_state rqpm;
-	ide_task_t args;
+	struct ide_cmd cmd;
 	int err;
 
 	/* call ACPI _PS0 / _STM only once */
@@ -54,11 +54,11 @@ int generic_ide_resume(struct device *dev)
 	ide_acpi_exec_tfs(drive);
 
 	memset(&rqpm, 0, sizeof(rqpm));
-	memset(&args, 0, sizeof(args));
+	memset(&cmd, 0, sizeof(cmd));
 	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
 	rq->cmd_type = REQ_TYPE_PM_RESUME;
 	rq->cmd_flags |= REQ_PREEMPT;
-	rq->special = &args;
+	rq->special = &cmd;
 	rq->data = &rqpm;
 	rqpm.pm_step = IDE_PM_START_RESUME;
 	rqpm.pm_state = PM_EVENT_ON;
@@ -109,9 +109,9 @@ void ide_complete_power_step(ide_drive_t *drive, struct request *rq)
 ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq)
 {
 	struct request_pm_state *pm = rq->data;
-	ide_task_t *args = rq->special;
+	struct ide_cmd *cmd = rq->special;
 
-	memset(args, 0, sizeof(*args));
+	memset(cmd, 0, sizeof(*cmd));
 
 	switch (pm->pm_step) {
 	case IDE_PM_FLUSH_CACHE:	/* Suspend step 1 (flush cache) */
@@ -124,12 +124,12 @@ ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq)
 			return ide_stopped;
 		}
 		if (ata_id_flush_ext_enabled(drive->id))
-			args->tf.command = ATA_CMD_FLUSH_EXT;
+			cmd->tf.command = ATA_CMD_FLUSH_EXT;
 		else
-			args->tf.command = ATA_CMD_FLUSH;
+			cmd->tf.command = ATA_CMD_FLUSH;
 		goto out_do_tf;
 	case IDE_PM_STANDBY:		/* Suspend step 2 (standby) */
-		args->tf.command = ATA_CMD_STANDBYNOW1;
+		cmd->tf.command = ATA_CMD_STANDBYNOW1;
 		goto out_do_tf;
 	case IDE_PM_RESTORE_PIO:	/* Resume step 1 (restore PIO) */
 		ide_set_max_pio(drive);
@@ -142,7 +142,7 @@ ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq)
 			ide_complete_power_step(drive, rq);
 		return ide_stopped;
 	case IDE_PM_IDLE:		/* Resume step 2 (idle) */
-		args->tf.command = ATA_CMD_IDLEIMMEDIATE;
+		cmd->tf.command = ATA_CMD_IDLEIMMEDIATE;
 		goto out_do_tf;
 	case IDE_PM_RESTORE_DMA:	/* Resume step 3 (restore DMA) */
 		/*
@@ -160,12 +160,14 @@ ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq)
 	}
 
 	pm->pm_step = IDE_PM_COMPLETED;
+
 	return ide_stopped;
 
 out_do_tf:
-	args->tf_flags	 = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	args->data_phase = TASKFILE_NO_DATA;
-	return do_rw_taskfile(drive, args);
+	cmd->tf_flags	 = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	cmd->data_phase = TASKFILE_NO_DATA;
+
+	return do_rw_taskfile(drive, cmd);
 }
 
 /**
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 335322f40c5a..548864510ba9 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -283,13 +283,13 @@ int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
 	 * identify command to be sure of reply
 	 */
 	if (cmd == ATA_CMD_ID_ATAPI) {
-		ide_task_t task;
+		struct ide_cmd cmd;
 
-		memset(&task, 0, sizeof(task));
+		memset(&cmd, 0, sizeof(cmd));
 		/* disable DMA & overlap */
-		task.tf_flags = IDE_TFLAG_OUT_FEATURE;
+		cmd.tf_flags = IDE_TFLAG_OUT_FEATURE;
 
-		tp_ops->tf_load(drive, &task);
+		tp_ops->tf_load(drive, &cmd);
 	}
 
 	/* ask drive for ID */
@@ -337,14 +337,14 @@ int ide_busy_sleep(ide_hwif_t *hwif, unsigned long timeout, int altstatus)
 
 static u8 ide_read_device(ide_drive_t *drive)
 {
-	ide_task_t task;
+	struct ide_cmd cmd;
 
-	memset(&task, 0, sizeof(task));
-	task.tf_flags = IDE_TFLAG_IN_DEVICE;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf_flags = IDE_TFLAG_IN_DEVICE;
 
-	drive->hwif->tp_ops->tf_read(drive, &task);
+	drive->hwif->tp_ops->tf_read(drive, &cmd);
 
-	return task.tf.device;
+	return cmd.tf.device;
 }
 
 /**
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index 417cde56eafd..10a88bf3eefa 100644
--- a/drivers/ide/ide-proc.c
+++ b/drivers/ide/ide-proc.c
@@ -194,20 +194,20 @@ ide_devset_get(xfer_rate, current_speed);
 
 static int set_xfer_rate (ide_drive_t *drive, int arg)
 {
-	ide_task_t task;
+	struct ide_cmd cmd;
 	int err;
 
 	if (arg < XFER_PIO_0 || arg > XFER_UDMA_6)
 		return -EINVAL;
 
-	memset(&task, 0, sizeof(task));
-	task.tf.command = ATA_CMD_SET_FEATURES;
-	task.tf.feature = SETFEATURES_XFER;
-	task.tf.nsect   = (u8)arg;
-	task.tf_flags = IDE_TFLAG_OUT_FEATURE | IDE_TFLAG_OUT_NSECT |
-			IDE_TFLAG_IN_NSECT;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf.command = ATA_CMD_SET_FEATURES;
+	cmd.tf.feature = SETFEATURES_XFER;
+	cmd.tf.nsect   = (u8)arg;
+	cmd.tf_flags   = IDE_TFLAG_OUT_FEATURE | IDE_TFLAG_OUT_NSECT |
+			 IDE_TFLAG_IN_NSECT;
 
-	err = ide_no_data_taskfile(drive, &task);
+	err = ide_no_data_taskfile(drive, &cmd);
 
 	if (!err) {
 		ide_set_xfer_rate(drive, (u8) arg);
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 925fb9241893..2b85c137764a 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -39,33 +39,34 @@ void ide_tf_dump(const char *s, struct ide_taskfile *tf)
 
 int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
 {
-	ide_task_t args;
+	struct ide_cmd cmd;
 
-	memset(&args, 0, sizeof(ide_task_t));
-	args.tf.nsect = 0x01;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.tf.nsect = 0x01;
 	if (drive->media == ide_disk)
-		args.tf.command = ATA_CMD_ID_ATA;
+		cmd.tf.command = ATA_CMD_ID_ATA;
 	else
-		args.tf.command = ATA_CMD_ID_ATAPI;
-	args.tf_flags	= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	args.data_phase	= TASKFILE_IN;
-	return ide_raw_taskfile(drive, &args, buf, 1);
+		cmd.tf.command = ATA_CMD_ID_ATAPI;
+	cmd.tf_flags	= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	cmd.data_phase	= TASKFILE_IN;
+
+	return ide_raw_taskfile(drive, &cmd, buf, 1);
 }
 
 static ide_startstop_t task_no_data_intr(ide_drive_t *);
 static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *);
 static ide_startstop_t task_in_intr(ide_drive_t *);
 
-ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
+ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 	ide_handler_t *handler = NULL;
 	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
 	const struct ide_dma_ops *dma_ops = hwif->dma_ops;
 
-	if (task->data_phase == TASKFILE_MULTI_IN ||
-	    task->data_phase == TASKFILE_MULTI_OUT) {
+	if (cmd->data_phase == TASKFILE_MULTI_IN ||
+	    cmd->data_phase == TASKFILE_MULTI_OUT) {
 		if (!drive->mult_count) {
 			printk(KERN_ERR "%s: multimode not set!\n",
 					drive->name);
@@ -73,24 +74,24 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
 		}
 	}
 
-	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
-		task->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
+	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
+		cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
 
-	memcpy(&hwif->task, task, sizeof(*task));
+	memcpy(&hwif->cmd, cmd, sizeof(*cmd));
 
-	if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
+	if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
 		ide_tf_dump(drive->name, tf);
 		tp_ops->set_irq(hwif, 1);
 		SELECT_MASK(drive, 0);
-		tp_ops->tf_load(drive, task);
+		tp_ops->tf_load(drive, cmd);
 	}
 
-	switch (task->data_phase) {
+	switch (cmd->data_phase) {
 	case TASKFILE_MULTI_OUT:
 	case TASKFILE_OUT:
 		tp_ops->exec_command(hwif, tf->command);
 		ndelay(400);	/* FIXME */
-		return pre_task_out_intr(drive, task->rq);
+		return pre_task_out_intr(drive, cmd->rq);
 	case TASKFILE_MULTI_IN:
 	case TASKFILE_IN:
 		handler = task_in_intr;
@@ -119,9 +120,9 @@ EXPORT_SYMBOL_GPL(do_rw_taskfile);
 static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	ide_task_t *task = &hwif->task;
-	struct ide_taskfile *tf = &task->tf;
-	int custom = (task->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) ? 1 : 0;
+	struct ide_cmd *cmd = &hwif->cmd;
+	struct ide_taskfile *tf = &cmd->tf;
+	int custom = (cmd->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) ? 1 : 0;
 	int retries = (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) ? 5 : 1;
 	u8 stat;
 
@@ -151,7 +152,7 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
 	}
 
 	if (custom && tf->command == ATA_CMD_IDLEIMMEDIATE) {
-		hwif->tp_ops->tf_read(drive, task);
+		hwif->tp_ops->tf_read(drive, cmd);
 		if (tf->lbal != 0xc4) {
 			printk(KERN_ERR "%s: head unload failed!\n",
 			       drive->name);
@@ -169,7 +170,7 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
 			ide_complete_pm_rq(drive, rq);
 		else {
 			if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
-				ide_complete_task(drive, task, stat, err);
+				ide_complete_cmd(drive, cmd, stat, err);
 			ide_complete_rq(drive, err);
 		}
 	}
@@ -266,18 +267,18 @@ static void ide_pio_multi(ide_drive_t *drive, struct request *rq,
 static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
 				     unsigned int write)
 {
-	ide_task_t *task = &drive->hwif->task;
+	struct ide_cmd *cmd = &drive->hwif->cmd;
 	u8 saved_io_32bit = drive->io_32bit;
 
 	if (blk_fs_request(rq))
 		rq->errors = 0;
 
-	if (task->tf_flags & IDE_TFLAG_IO_16BIT)
+	if (cmd->tf_flags & IDE_TFLAG_IO_16BIT)
 		drive->io_32bit = 0;
 
 	touch_softlockup_watchdog();
 
-	switch (task->data_phase) {
+	switch (cmd->data_phase) {
 	case TASKFILE_MULTI_IN:
 	case TASKFILE_MULTI_OUT:
 		ide_pio_multi(drive, rq, write);
@@ -295,10 +296,10 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
 {
 	if (blk_fs_request(rq)) {
 		ide_hwif_t *hwif = drive->hwif;
-		ide_task_t *task = &hwif->task;
+		struct ide_cmd *cmd = &hwif->cmd;
 		int sectors = hwif->nsect - hwif->nleft;
 
-		switch (task->data_phase) {
+		switch (cmd->data_phase) {
 		case TASKFILE_IN:
 			if (hwif->nleft)
 				break;
@@ -325,11 +326,11 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
 void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
 {
 	if (blk_fs_request(rq) == 0) {
-		ide_task_t *task = rq->special;
+		struct ide_cmd *cmd = rq->special;
 		u8 err = ide_read_error(drive);
 
-		if (task)
-			ide_complete_task(drive, task, stat, err);
+		if (cmd)
+			ide_complete_cmd(drive, cmd, stat, err);
 		ide_complete_rq(drive, err);
 		return;
 	}
@@ -420,14 +421,14 @@ static ide_startstop_t task_out_intr (ide_drive_t *drive)
 
 static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
 {
-	ide_task_t *task = &drive->hwif->task;
+	struct ide_cmd *cmd = &drive->hwif->cmd;
 	ide_startstop_t startstop;
 
 	if (ide_wait_stat(&startstop, drive, ATA_DRQ,
 			  drive->bad_wstat, WAIT_DRQ)) {
 		printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n",
 			drive->name,
-			task->data_phase == TASKFILE_MULTI_OUT ? "MULT" : "",
+			cmd->data_phase == TASKFILE_MULTI_OUT ? "MULT" : "",
 			(drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : "");
 		return startstop;
 	}
@@ -441,7 +442,8 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
 	return ide_started;
 }
 
-int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect)
+int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf,
+		     u16 nsect)
 {
 	struct request *rq;
 	int error;
@@ -459,11 +461,11 @@ int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect)
 	rq->hard_nr_sectors = rq->nr_sectors = nsect;
 	rq->hard_cur_sectors = rq->current_nr_sectors = nsect;
 
-	if (task->tf_flags & IDE_TFLAG_WRITE)
+	if (cmd->tf_flags & IDE_TFLAG_WRITE)
 		rq->cmd_flags |= REQ_RW;
 
-	rq->special = task;
-	task->rq = rq;
+	rq->special = cmd;
+	cmd->rq = rq;
 
 	error = blk_execute_rq(drive->queue, NULL, rq, 0);
 	blk_put_request(rq);
@@ -473,19 +475,19 @@ int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect)
 
 EXPORT_SYMBOL(ide_raw_taskfile);
 
-int ide_no_data_taskfile(ide_drive_t *drive, ide_task_t *task)
+int ide_no_data_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
 {
-	task->data_phase = TASKFILE_NO_DATA;
+	cmd->data_phase = TASKFILE_NO_DATA;
 
-	return ide_raw_taskfile(drive, task, NULL, 0);
+	return ide_raw_taskfile(drive, cmd, NULL, 0);
 }
 EXPORT_SYMBOL_GPL(ide_no_data_taskfile);
 
 #ifdef CONFIG_IDE_TASK_IOCTL
-int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
+int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
 {
 	ide_task_request_t	*req_task;
-	ide_task_t		args;
+	struct ide_cmd		cmd;
 	u8 *outbuf		= NULL;
 	u8 *inbuf		= NULL;
 	u8 *data_buf		= NULL;
@@ -539,51 +541,53 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 		}
 	}
 
-	memset(&args, 0, sizeof(ide_task_t));
+	memset(&cmd, 0, sizeof(cmd));
 
-	memcpy(&args.tf_array[0], req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE - 2);
-	memcpy(&args.tf_array[6], req_task->io_ports, HDIO_DRIVE_TASK_HDR_SIZE);
+	memcpy(&cmd.tf_array[0], req_task->hob_ports,
+	       HDIO_DRIVE_HOB_HDR_SIZE - 2);
+	memcpy(&cmd.tf_array[6], req_task->io_ports,
+	       HDIO_DRIVE_TASK_HDR_SIZE);
 
-	args.data_phase = req_task->data_phase;
+	cmd.data_phase = req_task->data_phase;
+	cmd.tf_flags   = IDE_TFLAG_IO_16BIT | IDE_TFLAG_DEVICE |
+			 IDE_TFLAG_IN_TF;
 
-	args.tf_flags = IDE_TFLAG_IO_16BIT | IDE_TFLAG_DEVICE |
-			IDE_TFLAG_IN_TF;
 	if (drive->dev_flags & IDE_DFLAG_LBA48)
-		args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_IN_HOB);
+		cmd.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_IN_HOB);
 
 	if (req_task->out_flags.all) {
-		args.ftf_flags |= IDE_FTFLAG_FLAGGED;
+		cmd.ftf_flags |= IDE_FTFLAG_FLAGGED;
 
 		if (req_task->out_flags.b.data)
-			args.ftf_flags |= IDE_FTFLAG_OUT_DATA;
+			cmd.ftf_flags |= IDE_FTFLAG_OUT_DATA;
 
 		if (req_task->out_flags.b.nsector_hob)
-			args.tf_flags |= IDE_TFLAG_OUT_HOB_NSECT;
+			cmd.tf_flags |= IDE_TFLAG_OUT_HOB_NSECT;
 		if (req_task->out_flags.b.sector_hob)
-			args.tf_flags |= IDE_TFLAG_OUT_HOB_LBAL;
+			cmd.tf_flags |= IDE_TFLAG_OUT_HOB_LBAL;
 		if (req_task->out_flags.b.lcyl_hob)
-			args.tf_flags |= IDE_TFLAG_OUT_HOB_LBAM;
+			cmd.tf_flags |= IDE_TFLAG_OUT_HOB_LBAM;
 		if (req_task->out_flags.b.hcyl_hob)
-			args.tf_flags |= IDE_TFLAG_OUT_HOB_LBAH;
+			cmd.tf_flags |= IDE_TFLAG_OUT_HOB_LBAH;
 
 		if (req_task->out_flags.b.error_feature)
-			args.tf_flags |= IDE_TFLAG_OUT_FEATURE;
+			cmd.tf_flags |= IDE_TFLAG_OUT_FEATURE;
 		if (req_task->out_flags.b.nsector)
-			args.tf_flags |= IDE_TFLAG_OUT_NSECT;
+			cmd.tf_flags |= IDE_TFLAG_OUT_NSECT;
 		if (req_task->out_flags.b.sector)
-			args.tf_flags |= IDE_TFLAG_OUT_LBAL;
+			cmd.tf_flags |= IDE_TFLAG_OUT_LBAL;
 		if (req_task->out_flags.b.lcyl)
-			args.tf_flags |= IDE_TFLAG_OUT_LBAM;
+			cmd.tf_flags |= IDE_TFLAG_OUT_LBAM;
 		if (req_task->out_flags.b.hcyl)
-			args.tf_flags |= IDE_TFLAG_OUT_LBAH;
+			cmd.tf_flags |= IDE_TFLAG_OUT_LBAH;
 	} else {
-		args.tf_flags |= IDE_TFLAG_OUT_TF;
-		if (args.tf_flags & IDE_TFLAG_LBA48)
-			args.tf_flags |= IDE_TFLAG_OUT_HOB;
+		cmd.tf_flags |= IDE_TFLAG_OUT_TF;
+		if (cmd.tf_flags & IDE_TFLAG_LBA48)
+			cmd.tf_flags |= IDE_TFLAG_OUT_HOB;
 	}
 
 	if (req_task->in_flags.b.data)
-		args.ftf_flags |= IDE_FTFLAG_IN_DATA;
+		cmd.ftf_flags |= IDE_FTFLAG_IN_DATA;
 
 	switch(req_task->data_phase) {
 		case TASKFILE_MULTI_OUT:
@@ -630,7 +634,7 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 	if (req_task->req_cmd == IDE_DRIVE_TASK_NO_DATA)
 		nsect = 0;
 	else if (!nsect) {
-		nsect = (args.tf.hob_nsect << 8) | args.tf.nsect;
+		nsect = (cmd.tf.hob_nsect << 8) | cmd.tf.nsect;
 
 		if (!nsect) {
 			printk(KERN_ERR "%s: in/out command without data\n",
@@ -641,14 +645,16 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 	}
 
 	if (req_task->req_cmd == IDE_DRIVE_TASK_RAW_WRITE)
-		args.tf_flags |= IDE_TFLAG_WRITE;
+		cmd.tf_flags |= IDE_TFLAG_WRITE;
 
-	err = ide_raw_taskfile(drive, &args, data_buf, nsect);
+	err = ide_raw_taskfile(drive, &cmd, data_buf, nsect);
 
-	memcpy(req_task->hob_ports, &args.tf_array[0], HDIO_DRIVE_HOB_HDR_SIZE - 2);
-	memcpy(req_task->io_ports, &args.tf_array[6], HDIO_DRIVE_TASK_HDR_SIZE);
+	memcpy(req_task->hob_ports, &cmd.tf_array[0],
+	       HDIO_DRIVE_HOB_HDR_SIZE - 2);
+	memcpy(req_task->io_ports, &cmd.tf_array[6],
+	       HDIO_DRIVE_TASK_HDR_SIZE);
 
-	if ((args.ftf_flags & IDE_FTFLAG_SET_IN_FLAGS) &&
+	if ((cmd.ftf_flags & IDE_FTFLAG_SET_IN_FLAGS) &&
 	    req_task->in_flags.all == 0) {
 		req_task->in_flags.all = IDE_TASKFILE_STD_IN_FLAGS;
 		if (drive->dev_flags & IDE_DFLAG_LBA48)
diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
index 159eb39c7932..d93c80016326 100644
--- a/drivers/ide/ns87415.c
+++ b/drivers/ide/ns87415.c
@@ -61,12 +61,12 @@ static u8 superio_dma_sff_read_status(ide_hwif_t *hwif)
 	return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS);
 }
 
-static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
+static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	struct ide_io_ports *io_ports = &drive->hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 
-	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data = inw(io_ports->data_addr);
 
 		tf->data = data & 0xff;
@@ -76,31 +76,31 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
 	/* be sure we're looking at the low order bits */
 	outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
-	if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE)
 		tf->feature = inb(io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = inb(io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
 		tf->lbal   = inb(io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
 		tf->lbam   = inb(io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
 		tf->lbah   = inb(io_ports->lbah_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
 		tf->device = superio_ide_inb(io_ports->device_addr);
 
-	if (task->tf_flags & IDE_TFLAG_LBA48) {
+	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
 		outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = inb(io_ports->feature_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
 			tf->hob_nsect   = inb(io_ports->nsect_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
 			tf->hob_lbal    = inb(io_ports->lbal_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
 			tf->hob_lbam    = inb(io_ports->lbam_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
 			tf->hob_lbah    = inb(io_ports->lbah_addr);
 	}
 }
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index 82929c725d82..d6336753bd2c 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -666,52 +666,52 @@ static int __devinit init_setup_scc(struct pci_dev *dev,
 	return rc;
 }
 
-static void scc_tf_load(ide_drive_t *drive, ide_task_t *task)
+static void scc_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	struct ide_io_ports *io_ports = &drive->hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
-	u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
+	struct ide_taskfile *tf = &cmd->tf;
+	u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
 
-	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
+	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA)
+	if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA)
 		out_be32((void *)io_ports->data_addr,
 			 (tf->hob_data << 8) | tf->data);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
 		scc_ide_outb(tf->hob_feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
 		scc_ide_outb(tf->hob_nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
 		scc_ide_outb(tf->hob_lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
 		scc_ide_outb(tf->hob_lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
 		scc_ide_outb(tf->hob_lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
 		scc_ide_outb(tf->feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
 		scc_ide_outb(tf->nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
 		scc_ide_outb(tf->lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
 		scc_ide_outb(tf->lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
 		scc_ide_outb(tf->lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
 		scc_ide_outb((tf->device & HIHI) | drive->select,
 			     io_ports->device_addr);
 }
 
-static void scc_tf_read(ide_drive_t *drive, ide_task_t *task)
+static void scc_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	struct ide_io_ports *io_ports = &drive->hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 
-	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data = (u16)in_be32((void *)io_ports->data_addr);
 
 		tf->data = data & 0xff;
@@ -721,31 +721,31 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task)
 	/* be sure we're looking at the low order bits */
 	scc_ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
-	if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE)
 		tf->feature = scc_ide_inb(io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = scc_ide_inb(io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
 		tf->lbal   = scc_ide_inb(io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
 		tf->lbam   = scc_ide_inb(io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
 		tf->lbah   = scc_ide_inb(io_ports->lbah_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
 		tf->device = scc_ide_inb(io_ports->device_addr);
 
-	if (task->tf_flags & IDE_TFLAG_LBA48) {
+	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
 		scc_ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = scc_ide_inb(io_ports->feature_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
 			tf->hob_nsect   = scc_ide_inb(io_ports->nsect_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
 			tf->hob_lbal    = scc_ide_inb(io_ports->lbal_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
 			tf->hob_lbam    = scc_ide_inb(io_ports->lbam_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
 			tf->hob_lbah    = scc_ide_inb(io_ports->lbah_addr);
 	}
 }
diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c
index 6b51e0c58af7..947596d3620c 100644
--- a/drivers/ide/tx4938ide.c
+++ b/drivers/ide/tx4938ide.c
@@ -82,57 +82,57 @@ static void tx4938ide_outb(u8 value, unsigned long port)
 	__raw_writeb(value, (void __iomem *)port);
 }
 
-static void tx4938ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+static void tx4938ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
-	u8 HIHI = task->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
+	struct ide_taskfile *tf = &cmd->tf;
+	u8 HIHI = cmd->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
 
-	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
+	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) {
 		u16 data = (tf->hob_data << 8) | tf->data;
 
 		/* no endian swap */
 		__raw_writew(data, (void __iomem *)io_ports->data_addr);
 	}
 
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
 		tx4938ide_outb(tf->hob_feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
 		tx4938ide_outb(tf->hob_nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
 		tx4938ide_outb(tf->hob_lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
 		tx4938ide_outb(tf->hob_lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
 		tx4938ide_outb(tf->hob_lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
 		tx4938ide_outb(tf->feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
 		tx4938ide_outb(tf->nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
 		tx4938ide_outb(tf->lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
 		tx4938ide_outb(tf->lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
 		tx4938ide_outb(tf->lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
 		tx4938ide_outb((tf->device & HIHI) | drive->select,
 			       io_ports->device_addr);
 }
 
-static void tx4938ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+static void tx4938ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 
-	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data;
 
 		/* no endian swap */
@@ -144,32 +144,32 @@ static void tx4938ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 	/* be sure we're looking at the low order bits */
 	tx4938ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
-	if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE)
 		tf->feature = tx4938ide_inb(io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = tx4938ide_inb(io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
 		tf->lbal   = tx4938ide_inb(io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
 		tf->lbam   = tx4938ide_inb(io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
 		tf->lbah   = tx4938ide_inb(io_ports->lbah_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
 		tf->device = tx4938ide_inb(io_ports->device_addr);
 
-	if (task->tf_flags & IDE_TFLAG_LBA48) {
+	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
 		tx4938ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature =
 				tx4938ide_inb(io_ports->feature_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
 			tf->hob_nsect   = tx4938ide_inb(io_ports->nsect_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
 			tf->hob_lbal    = tx4938ide_inb(io_ports->lbal_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
 			tf->hob_lbam    = tx4938ide_inb(io_ports->lbam_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
 			tf->hob_lbah    = tx4938ide_inb(io_ports->lbah_addr);
 	}
 }
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index ee86688d8461..bf11791476f0 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -435,7 +435,7 @@ static int tx4939ide_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
 	return ide_allocate_dma_engine(hwif);
 }
 
-static void tx4939ide_tf_load_fixup(ide_drive_t *drive, ide_task_t *task)
+static void tx4939ide_tf_load_fixup(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	void __iomem *base = TX4939IDE_BASE(hwif);
@@ -463,59 +463,59 @@ static void tx4939ide_outb(u8 value, unsigned long port)
 	__raw_writeb(value, (void __iomem *)port);
 }
 
-static void tx4939ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+static void tx4939ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
-	u8 HIHI = task->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
+	struct ide_taskfile *tf = &cmd->tf;
+	u8 HIHI = cmd->tf_flags & IDE_TFLAG_LBA48 ? 0xE0 : 0xEF;
 
-	if (task->ftf_flags & IDE_FTFLAG_FLAGGED)
+	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
 		HIHI = 0xFF;
 
-	if (task->ftf_flags & IDE_FTFLAG_OUT_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) {
 		u16 data = (tf->hob_data << 8) | tf->data;
 
 		/* no endian swap */
 		__raw_writew(data, (void __iomem *)io_ports->data_addr);
 	}
 
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
 		tx4939ide_outb(tf->hob_feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
 		tx4939ide_outb(tf->hob_nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
 		tx4939ide_outb(tf->hob_lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
 		tx4939ide_outb(tf->hob_lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
 		tx4939ide_outb(tf->hob_lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
 		tx4939ide_outb(tf->feature, io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
 		tx4939ide_outb(tf->nsect, io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
 		tx4939ide_outb(tf->lbal, io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
 		tx4939ide_outb(tf->lbam, io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_OUT_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
 		tx4939ide_outb(tf->lbah, io_ports->lbah_addr);
 
-	if (task->tf_flags & IDE_TFLAG_OUT_DEVICE) {
+	if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE) {
 		tx4939ide_outb((tf->device & HIHI) | drive->select,
 			       io_ports->device_addr);
-		tx4939ide_tf_load_fixup(drive, task);
+		tx4939ide_tf_load_fixup(drive);
 	}
 }
 
-static void tx4939ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+static void tx4939ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &task->tf;
+	struct ide_taskfile *tf = &cmd->tf;
 
-	if (task->ftf_flags & IDE_FTFLAG_IN_DATA) {
+	if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) {
 		u16 data;
 
 		/* no endian swap */
@@ -527,32 +527,32 @@ static void tx4939ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 	/* be sure we're looking at the low order bits */
 	tx4939ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
-	if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE)
 		tf->feature = tx4939ide_inb(io_ports->feature_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
+	if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = tx4939ide_inb(io_ports->nsect_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAL)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
 		tf->lbal   = tx4939ide_inb(io_ports->lbal_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAM)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
 		tf->lbam   = tx4939ide_inb(io_ports->lbam_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_LBAH)
+	if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
 		tf->lbah   = tx4939ide_inb(io_ports->lbah_addr);
-	if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
+	if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
 		tf->device = tx4939ide_inb(io_ports->device_addr);
 
-	if (task->tf_flags & IDE_TFLAG_LBA48) {
+	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
 		tx4939ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature =
 				tx4939ide_inb(io_ports->feature_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
 			tf->hob_nsect   = tx4939ide_inb(io_ports->nsect_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
 			tf->hob_lbal    = tx4939ide_inb(io_ports->lbal_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
 			tf->hob_lbam    = tx4939ide_inb(io_ports->lbam_addr);
-		if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
+		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
 			tf->hob_lbah    = tx4939ide_inb(io_ports->lbah_addr);
 	}
 }
@@ -599,11 +599,12 @@ static const struct ide_tp_ops tx4939ide_tp_ops = {
 
 #else	/* __LITTLE_ENDIAN */
 
-static void tx4939ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+static void tx4939ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
 {
-	ide_tf_load(drive, task);
-	if (task->tf_flags & IDE_TFLAG_OUT_DEVICE)
-		tx4939ide_tf_load_fixup(drive, task);
+	ide_tf_load(drive, cmd);
+
+	if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
+		tx4939ide_tf_load_fixup(drive);
 }
 
 static const struct ide_tp_ops tx4939ide_tp_ops = {
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 2ee236d1f3ac..f0e3618c7257 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -295,7 +295,7 @@ enum {
 					  IDE_TFLAG_IN_DEVICE,
 	/* force 16-bit I/O operations */
 	IDE_TFLAG_IO_16BIT		= (1 << 26),
-	/* ide_task_t was allocated using kmalloc() */
+	/* struct ide_cmd was allocated using kmalloc() */
 	IDE_TFLAG_DYN			= (1 << 27),
 };
 
@@ -335,7 +335,7 @@ struct ide_taskfile {
 	};
 };
 
-typedef struct ide_task_s {
+struct ide_cmd {
 	union {
 		struct ide_taskfile	tf;
 		u8			tf_array[14];
@@ -345,7 +345,7 @@ typedef struct ide_task_s {
 	int			data_phase;
 	struct request		*rq;		/* copy of request */
 	void			*special;	/* valid_t generally */
-} ide_task_t;
+};
 
 /* ATAPI packet command flags */
 enum {
@@ -652,8 +652,8 @@ struct ide_tp_ops {
 
 	void	(*set_irq)(struct hwif_s *, int);
 
-	void	(*tf_load)(ide_drive_t *, struct ide_task_s *);
-	void	(*tf_read)(ide_drive_t *, struct ide_task_s *);
+	void	(*tf_load)(ide_drive_t *, struct ide_cmd *);
+	void	(*tf_read)(ide_drive_t *, struct ide_cmd *);
 
 	void	(*input_data)(ide_drive_t *, struct request *, void *,
 			      unsigned int);
@@ -775,7 +775,7 @@ typedef struct hwif_s {
 	int orig_sg_nents;
 	int sg_dma_direction;		/* dma transfer direction */
 
-	struct ide_task_s task;		/* current command */
+	struct ide_cmd cmd;		/* current command */
 
 	unsigned int nsect;
 	unsigned int nleft;
@@ -1161,7 +1161,7 @@ extern ide_startstop_t ide_do_reset (ide_drive_t *);
 extern int ide_devset_execute(ide_drive_t *drive,
 			      const struct ide_devset *setting, int arg);
 
-void ide_complete_task(ide_drive_t *, ide_task_t *, u8, u8);
+void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8);
 void ide_complete_rq(ide_drive_t *, u8);
 
 void ide_tf_dump(const char *, struct ide_taskfile *);
@@ -1172,8 +1172,8 @@ u8 ide_read_altstatus(ide_hwif_t *);
 
 void ide_set_irq(ide_hwif_t *, int);
 
-void ide_tf_load(ide_drive_t *, ide_task_t *);
-void ide_tf_read(ide_drive_t *, ide_task_t *);
+void ide_tf_load(ide_drive_t *, struct ide_cmd *);
+void ide_tf_read(ide_drive_t *, struct ide_cmd *);
 
 void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int);
 void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int);
@@ -1224,14 +1224,14 @@ int ide_cd_get_xferlen(struct request *);
 
 ide_startstop_t ide_issue_pc(ide_drive_t *);
 
-ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *);
+ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *);
 
 void task_end_request(ide_drive_t *, struct request *, u8);
 
-int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16);
-int ide_no_data_taskfile(ide_drive_t *, ide_task_t *);
+int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16);
+int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *);
 
-int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
+int ide_taskfile_ioctl(ide_drive_t *, unsigned long);
 
 int ide_dev_read_id(ide_drive_t *, u8, u16 *);
 
-- 
cgit v1.2.3


From adb1af9803d167091c2cb4de14014185054bfe2c Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:38 +0100
Subject: ide: pass command instead of request to ide_pio_datablock()

* Add IDE_TFLAG_FS taskfile flag and set it for REQ_TYPE_FS requests.

* Convert ->{in,out}put_data methods to take command instead of request
  as an argument.  Then convert pre_task_out_intr(), task_end_request(),
  task_error(), task_in_unexpected(), ide_pio_sector(), ide_pio_multi()
  and ide_pio_datablock() in similar way.

* Rename task_end_request() to ide_finish_cmd().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/at91_ide.c     |  4 +--
 drivers/ide/au1xxx-ide.c   |  4 +--
 drivers/ide/falconide.c    |  8 ++---
 drivers/ide/ide-disk.c     |  2 ++
 drivers/ide/ide-dma.c      |  4 +--
 drivers/ide/ide-h8300.c    |  4 +--
 drivers/ide/ide-io-std.c   |  4 +--
 drivers/ide/ide-taskfile.c | 88 ++++++++++++++++++++++------------------------
 drivers/ide/q40ide.c       |  8 ++---
 drivers/ide/scc_pata.c     |  4 +--
 drivers/ide/tx4938ide.c    |  4 +--
 include/linux/ide.h        | 17 ++++-----
 12 files changed, 76 insertions(+), 75 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c
index 6be7d87382ab..27547121daff 100644
--- a/drivers/ide/at91_ide.c
+++ b/drivers/ide/at91_ide.c
@@ -143,7 +143,7 @@ static void apply_timings(const u8 chipselect, const u8 pio,
 	set_smc_timings(chipselect, cycle, setup, pulse, data_float, use_iordy);
 }
 
-static void at91_ide_input_data(ide_drive_t *drive, struct request *rq,
+static void at91_ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
 				void *buf, unsigned int len)
 {
 	ide_hwif_t *hwif = drive->hwif;
@@ -160,7 +160,7 @@ static void at91_ide_input_data(ide_drive_t *drive, struct request *rq,
 	leave_16bit(chipselect, mode);
 }
 
-static void at91_ide_output_data(ide_drive_t *drive, struct request *rq,
+static void at91_ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
 				 void *buf, unsigned int len)
 {
 	ide_hwif_t *hwif = drive->hwif;
diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
index 3fc3ced8192c..72d7d615e1fc 100644
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -86,13 +86,13 @@ void auide_outsw(unsigned long port, void *addr, u32 count)
 	ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
 }
 
-static void au1xxx_input_data(ide_drive_t *drive, struct request *rq,
+static void au1xxx_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
 			      void *buf, unsigned int len)
 {
 	auide_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
 }
 
-static void au1xxx_output_data(ide_drive_t *drive, struct request *rq,
+static void au1xxx_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
 			       void *buf, unsigned int len)
 {
 	auide_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
index 6085feb1fae8..b368a5effc3a 100644
--- a/drivers/ide/falconide.c
+++ b/drivers/ide/falconide.c
@@ -62,23 +62,23 @@ static void falconide_get_lock(irq_handler_t handler, void *data)
 	}
 }
 
-static void falconide_input_data(ide_drive_t *drive, struct request *rq,
+static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
 				 void *buf, unsigned int len)
 {
 	unsigned long data_addr = drive->hwif->io_ports.data_addr;
 
-	if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
+	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
 		return insw(data_addr, buf, (len + 1) / 2);
 
 	raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
 }
 
-static void falconide_output_data(ide_drive_t *drive, struct request *rq,
+static void falconide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
 				  void *buf, unsigned int len)
 {
 	unsigned long data_addr = drive->hwif->io_ports.data_addr;
 
-	if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
+	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
 		return outsw(data_addr, buf, (len + 1) / 2);
 
 	raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 6647cb8bd910..f1555dd4e6a5 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -156,6 +156,8 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 		tf->device = head;
 	}
 
+	cmd.tf_flags |= IDE_TFLAG_FS;
+
 	if (rq_data_dir(rq))
 		cmd.tf_flags |= IDE_TFLAG_WRITE;
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 12c11b71402e..54f17ae9225d 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -96,9 +96,9 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive)
 
 	if (OK_STAT(stat, DRIVE_READY, drive->bad_wstat | ATA_DRQ)) {
 		if (!dma_stat) {
-			struct request *rq = hwif->rq;
+			struct ide_cmd *cmd = &hwif->cmd;
 
-			task_end_request(drive, rq, stat);
+			ide_finish_cmd(drive, cmd, stat);
 			return ide_stopped;
 		}
 		printk(KERN_ERR "%s: %s: bad DMA status (0x%02x)\n",
diff --git a/drivers/ide/ide-h8300.c b/drivers/ide/ide-h8300.c
index c7883f23c66a..ff8339ed59ab 100644
--- a/drivers/ide/ide-h8300.c
+++ b/drivers/ide/ide-h8300.c
@@ -143,13 +143,13 @@ static void mm_insw(unsigned long addr, void *buf, u32 len)
 		*bp = bswap(*(volatile u16 *)addr);
 }
 
-static void h8300_input_data(ide_drive_t *drive, struct request *rq,
+static void h8300_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
 			     void *buf, unsigned int len)
 {
 	mm_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
 }
 
-static void h8300_output_data(ide_drive_t *drive, struct request *rq,
+static void h8300_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
 			      void *buf, unsigned int len)
 {
 	mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c
index 570c0cc4514d..2d9c6dc3f956 100644
--- a/drivers/ide/ide-io-std.c
+++ b/drivers/ide/ide-io-std.c
@@ -219,7 +219,7 @@ static void ata_vlb_sync(unsigned long port)
  * so if an odd len is specified, be sure that there's at least one
  * extra byte allocated for the buffer.
  */
-void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
+void ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
 		    unsigned int len)
 {
 	ide_hwif_t *hwif = drive->hwif;
@@ -265,7 +265,7 @@ EXPORT_SYMBOL_GPL(ide_input_data);
 /*
  * This is used for most PIO data transfers *to* the IDE interface
  */
-void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
+void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
 		     unsigned int len)
 {
 	ide_hwif_t *hwif = drive->hwif;
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 2b85c137764a..d3bd93afbf2b 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -54,19 +54,20 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
 }
 
 static ide_startstop_t task_no_data_intr(ide_drive_t *);
-static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *);
+static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct ide_cmd *);
 static ide_startstop_t task_in_intr(ide_drive_t *);
 
-ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
+ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
+	struct ide_cmd *cmd = &hwif->cmd;
 	struct ide_taskfile *tf = &cmd->tf;
 	ide_handler_t *handler = NULL;
 	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
 	const struct ide_dma_ops *dma_ops = hwif->dma_ops;
 
-	if (cmd->data_phase == TASKFILE_MULTI_IN ||
-	    cmd->data_phase == TASKFILE_MULTI_OUT) {
+	if (orig_cmd->data_phase == TASKFILE_MULTI_IN ||
+	    orig_cmd->data_phase == TASKFILE_MULTI_OUT) {
 		if (!drive->mult_count) {
 			printk(KERN_ERR "%s: multimode not set!\n",
 					drive->name);
@@ -74,10 +75,10 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
 		}
 	}
 
-	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
-		cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
+	if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
+		orig_cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
 
-	memcpy(&hwif->cmd, cmd, sizeof(*cmd));
+	memcpy(cmd, orig_cmd, sizeof(*cmd));
 
 	if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
 		ide_tf_dump(drive->name, tf);
@@ -91,7 +92,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
 	case TASKFILE_OUT:
 		tp_ops->exec_command(hwif, tf->command);
 		ndelay(400);	/* FIXME */
-		return pre_task_out_intr(drive, cmd->rq);
+		return pre_task_out_intr(drive, cmd);
 	case TASKFILE_MULTI_IN:
 	case TASKFILE_IN:
 		handler = task_in_intr;
@@ -203,7 +204,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
 	return stat;
 }
 
-static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
+static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
 			   unsigned int write)
 {
 	ide_hwif_t *hwif = drive->hwif;
@@ -244,9 +245,9 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
 
 	/* do the actual data transfer */
 	if (write)
-		hwif->tp_ops->output_data(drive, rq, buf, SECTOR_SIZE);
+		hwif->tp_ops->output_data(drive, cmd, buf, SECTOR_SIZE);
 	else
-		hwif->tp_ops->input_data(drive, rq, buf, SECTOR_SIZE);
+		hwif->tp_ops->input_data(drive, cmd, buf, SECTOR_SIZE);
 
 	kunmap_atomic(buf, KM_BIO_SRC_IRQ);
 #ifdef CONFIG_HIGHMEM
@@ -254,24 +255,23 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
 #endif
 }
 
-static void ide_pio_multi(ide_drive_t *drive, struct request *rq,
+static void ide_pio_multi(ide_drive_t *drive, struct ide_cmd *cmd,
 			  unsigned int write)
 {
 	unsigned int nsect;
 
 	nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count);
 	while (nsect--)
-		ide_pio_sector(drive, rq, write);
+		ide_pio_sector(drive, cmd, write);
 }
 
-static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
-				     unsigned int write)
+static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd,
+			      unsigned int write)
 {
-	struct ide_cmd *cmd = &drive->hwif->cmd;
 	u8 saved_io_32bit = drive->io_32bit;
 
-	if (blk_fs_request(rq))
-		rq->errors = 0;
+	if (cmd->tf_flags & IDE_TFLAG_FS)
+		cmd->rq->errors = 0;
 
 	if (cmd->tf_flags & IDE_TFLAG_IO_16BIT)
 		drive->io_32bit = 0;
@@ -281,22 +281,21 @@ static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
 	switch (cmd->data_phase) {
 	case TASKFILE_MULTI_IN:
 	case TASKFILE_MULTI_OUT:
-		ide_pio_multi(drive, rq, write);
+		ide_pio_multi(drive, cmd, write);
 		break;
 	default:
-		ide_pio_sector(drive, rq, write);
+		ide_pio_sector(drive, cmd, write);
 		break;
 	}
 
 	drive->io_32bit = saved_io_32bit;
 }
 
-static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
+static ide_startstop_t task_error(ide_drive_t *drive, struct ide_cmd *cmd,
 				  const char *s, u8 stat)
 {
-	if (blk_fs_request(rq)) {
+	if (cmd->tf_flags & IDE_TFLAG_FS) {
 		ide_hwif_t *hwif = drive->hwif;
-		struct ide_cmd *cmd = &hwif->cmd;
 		int sectors = hwif->nsect - hwif->nleft;
 
 		switch (cmd->data_phase) {
@@ -323,19 +322,17 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
 	return ide_error(drive, s, stat);
 }
 
-void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
+void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat)
 {
-	if (blk_fs_request(rq) == 0) {
-		struct ide_cmd *cmd = rq->special;
+	if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) {
 		u8 err = ide_read_error(drive);
 
-		if (cmd)
-			ide_complete_cmd(drive, cmd, stat, err);
+		ide_complete_cmd(drive, cmd, stat, err);
 		ide_complete_rq(drive, err);
 		return;
 	}
 
-	ide_end_request(drive, 1, rq->nr_sectors);
+	ide_end_request(drive, 1, cmd->rq->nr_sectors);
 }
 
 /*
@@ -344,11 +341,12 @@ void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
  * It might be a spurious irq (shared irq), but it might be a
  * command that had no output.
  */
-static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq, u8 stat)
+static ide_startstop_t task_in_unexpected(ide_drive_t *drive,
+					  struct ide_cmd *cmd, u8 stat)
 {
 	/* Command all done? */
 	if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) {
-		task_end_request(drive, rq, stat);
+		ide_finish_cmd(drive, cmd, stat);
 		return ide_stopped;
 	}
 
@@ -363,25 +361,25 @@ static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq
 static ide_startstop_t task_in_intr(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct request *rq = hwif->rq;
+	struct ide_cmd *cmd = &drive->hwif->cmd;
 	u8 stat = hwif->tp_ops->read_status(hwif);
 
 	/* Error? */
 	if (stat & ATA_ERR)
-		return task_error(drive, rq, __func__, stat);
+		return task_error(drive, cmd, __func__, stat);
 
 	/* Didn't want any data? Odd. */
 	if ((stat & ATA_DRQ) == 0)
-		return task_in_unexpected(drive, rq, stat);
+		return task_in_unexpected(drive, cmd, stat);
 
-	ide_pio_datablock(drive, rq, 0);
+	ide_pio_datablock(drive, cmd, 0);
 
 	/* Are we done? Check status and finish transfer. */
 	if (!hwif->nleft) {
 		stat = wait_drive_not_busy(drive);
 		if (!OK_STAT(stat, 0, BAD_STAT))
-			return task_error(drive, rq, __func__, stat);
-		task_end_request(drive, rq, stat);
+			return task_error(drive, cmd, __func__, stat);
+		ide_finish_cmd(drive, cmd, stat);
 		return ide_stopped;
 	}
 
@@ -397,31 +395,31 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive)
 static ide_startstop_t task_out_intr (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct request *rq = hwif->rq;
+	struct ide_cmd *cmd = &drive->hwif->cmd;
 	u8 stat = hwif->tp_ops->read_status(hwif);
 
 	if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
-		return task_error(drive, rq, __func__, stat);
+		return task_error(drive, cmd, __func__, stat);
 
 	/* Deal with unexpected ATA data phase. */
 	if (((stat & ATA_DRQ) == 0) ^ !hwif->nleft)
-		return task_error(drive, rq, __func__, stat);
+		return task_error(drive, cmd, __func__, stat);
 
 	if (!hwif->nleft) {
-		task_end_request(drive, rq, stat);
+		ide_finish_cmd(drive, cmd, stat);
 		return ide_stopped;
 	}
 
 	/* Still data left to transfer. */
-	ide_pio_datablock(drive, rq, 1);
+	ide_pio_datablock(drive, cmd, 1);
 	ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL);
 
 	return ide_started;
 }
 
-static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
+static ide_startstop_t pre_task_out_intr(ide_drive_t *drive,
+					 struct ide_cmd *cmd)
 {
-	struct ide_cmd *cmd = &drive->hwif->cmd;
 	ide_startstop_t startstop;
 
 	if (ide_wait_stat(&startstop, drive, ATA_DRQ,
@@ -437,7 +435,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
 		local_irq_disable();
 
 	ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL);
-	ide_pio_datablock(drive, rq, 1);
+	ide_pio_datablock(drive, cmd, 1);
 
 	return ide_started;
 }
diff --git a/drivers/ide/q40ide.c b/drivers/ide/q40ide.c
index 32f669d656a6..2a43a2f49633 100644
--- a/drivers/ide/q40ide.c
+++ b/drivers/ide/q40ide.c
@@ -72,23 +72,23 @@ static void q40_ide_setup_ports(hw_regs_t *hw, unsigned long base,
 	hw->chipset = ide_generic;
 }
 
-static void q40ide_input_data(ide_drive_t *drive, struct request *rq,
+static void q40ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
 			      void *buf, unsigned int len)
 {
 	unsigned long data_addr = drive->hwif->io_ports.data_addr;
 
-	if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
+	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
 		return insw(data_addr, buf, (len + 1) / 2);
 
 	raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
 }
 
-static void q40ide_output_data(ide_drive_t *drive, struct request *rq,
+static void q40ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
 			       void *buf, unsigned int len)
 {
 	unsigned long data_addr = drive->hwif->io_ports.data_addr;
 
-	if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
+	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
 		return outsw(data_addr, buf, (len + 1) / 2);
 
 	raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index d6336753bd2c..ada866744622 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -750,7 +750,7 @@ static void scc_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 	}
 }
 
-static void scc_input_data(ide_drive_t *drive, struct request *rq,
+static void scc_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
 			   void *buf, unsigned int len)
 {
 	unsigned long data_addr = drive->hwif->io_ports.data_addr;
@@ -766,7 +766,7 @@ static void scc_input_data(ide_drive_t *drive, struct request *rq,
 		scc_ide_insw(data_addr, buf, len / 2);
 }
 
-static void scc_output_data(ide_drive_t *drive,  struct request *rq,
+static void scc_output_data(ide_drive_t *drive,  struct ide_cmd *cmd,
 			    void *buf, unsigned int len)
 {
 	unsigned long data_addr = drive->hwif->io_ports.data_addr;
diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c
index 947596d3620c..657a61890b1c 100644
--- a/drivers/ide/tx4938ide.c
+++ b/drivers/ide/tx4938ide.c
@@ -174,7 +174,7 @@ static void tx4938ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
 	}
 }
 
-static void tx4938ide_input_data_swap(ide_drive_t *drive, struct request *rq,
+static void tx4938ide_input_data_swap(ide_drive_t *drive, struct ide_cmd *cmd,
 				void *buf, unsigned int len)
 {
 	unsigned long port = drive->hwif->io_ports.data_addr;
@@ -186,7 +186,7 @@ static void tx4938ide_input_data_swap(ide_drive_t *drive, struct request *rq,
 	__ide_flush_dcache_range((unsigned long)buf, roundup(len, 2));
 }
 
-static void tx4938ide_output_data_swap(ide_drive_t *drive, struct request *rq,
+static void tx4938ide_output_data_swap(ide_drive_t *drive, struct ide_cmd *cmd,
 				void *buf, unsigned int len)
 {
 	unsigned long port = drive->hwif->io_ports.data_addr;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index f0e3618c7257..1785582e1f86 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -297,6 +297,7 @@ enum {
 	IDE_TFLAG_IO_16BIT		= (1 << 26),
 	/* struct ide_cmd was allocated using kmalloc() */
 	IDE_TFLAG_DYN			= (1 << 27),
+	IDE_TFLAG_FS			= (1 << 28),
 };
 
 enum {
@@ -655,10 +656,10 @@ struct ide_tp_ops {
 	void	(*tf_load)(ide_drive_t *, struct ide_cmd *);
 	void	(*tf_read)(ide_drive_t *, struct ide_cmd *);
 
-	void	(*input_data)(ide_drive_t *, struct request *, void *,
-			      unsigned int);
-	void	(*output_data)(ide_drive_t *, struct request *, void *,
-			       unsigned int);
+	void	(*input_data)(ide_drive_t *, struct ide_cmd *,
+			      void *, unsigned int);
+	void	(*output_data)(ide_drive_t *, struct ide_cmd *,
+			       void *, unsigned int);
 };
 
 extern const struct ide_tp_ops default_tp_ops;
@@ -866,7 +867,7 @@ typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
 typedef int (ide_expiry_t)(ide_drive_t *);
 
 /* used by ide-cd, ide-floppy, etc. */
-typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned);
+typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned);
 
 extern struct mutex ide_setting_mtx;
 
@@ -1175,8 +1176,8 @@ void ide_set_irq(ide_hwif_t *, int);
 void ide_tf_load(ide_drive_t *, struct ide_cmd *);
 void ide_tf_read(ide_drive_t *, struct ide_cmd *);
 
-void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int);
-void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int);
+void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
+void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
 
 int ide_io_buffers(ide_drive_t *, struct ide_atapi_pc *, unsigned int, int);
 
@@ -1226,7 +1227,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *);
 
 ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *);
 
-void task_end_request(ide_drive_t *, struct request *, u8);
+void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8);
 
 int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16);
 int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *);
-- 
cgit v1.2.3


From b6308ee0c55acd2e943d849773c9f0a49c516317 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:38 +0100
Subject: ide: move command related fields from ide_hwif_t to struct ide_cmd

* Move command related fields from ide_hwif_t to struct ide_cmd.

* Make ide_init_sg_cmd() take command and sectors number as arguments.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/au1xxx-ide.c   |  2 +-
 drivers/ide/icside.c       |  2 +-
 drivers/ide/ide-disk.c     | 12 ++++++------
 drivers/ide/ide-dma-sff.c  |  2 +-
 drivers/ide/ide-dma.c      | 16 +++++++++-------
 drivers/ide/ide-floppy.c   |  5 +++--
 drivers/ide/ide-io.c       | 24 ++++++++++--------------
 drivers/ide/ide-taskfile.c | 33 ++++++++++++++++-----------------
 drivers/ide/pmac.c         |  2 +-
 drivers/ide/sgiioc4.c      |  2 +-
 drivers/ide/tx4939ide.c    |  2 +-
 include/linux/ide.h        | 20 +++++++++++---------
 12 files changed, 61 insertions(+), 61 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
index 72d7d615e1fc..3ace0cda5452 100644
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -215,7 +215,7 @@ static int auide_build_dmatable(ide_drive_t *drive)
 	struct request *rq = hwif->rq;
 	_auide_hwif *ahwif = &auide_hwif;
 	struct scatterlist *sg;
-	int i = hwif->sg_nents, iswrite, count = 0;
+	int i = hwif->cmd.sg_nents, iswrite, count = 0;
 
 	iswrite = (rq_data_dir(rq) == WRITE);
 	/* Save for interrupt context */
diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c
index 78fc36f98d29..bdfeb1222d52 100644
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -344,7 +344,7 @@ static int icside_dma_setup(ide_drive_t *drive)
 	 * Tell the DMA engine about the SG table and
 	 * data direction.
 	 */
-	set_dma_sg(ec->dma, hwif->sg_table, hwif->sg_nents);
+	set_dma_sg(ec->dma, hwif->sg_table, hwif->cmd.sg_nents);
 	set_dma_mode(ec->dma, dma_mode);
 
 	drive->waiting_for_dma = 1;
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index f1555dd4e6a5..d00d807c0f53 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -104,14 +104,14 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 			lba48 = 0;
 	}
 
-	if (!dma) {
-		ide_init_sg_cmd(drive, rq);
-		ide_map_sg(drive, rq);
-	}
-
 	memset(&cmd, 0, sizeof(cmd));
 	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
+	if (dma == 0) {
+		ide_init_sg_cmd(&cmd, nsectors);
+		ide_map_sg(drive, rq);
+	}
+
 	if (drive->dev_flags & IDE_DFLAG_LBA) {
 		if (lba48) {
 			pr_debug("%s: LBA=0x%012llx\n", drive->name,
@@ -170,7 +170,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 		/* fallback to PIO */
 		cmd.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK;
 		ide_tf_set_cmd(drive, &cmd, 0);
-		ide_init_sg_cmd(drive, rq);
+		ide_init_sg_cmd(&cmd, nsectors);
 		rc = do_rw_taskfile(drive, &cmd);
 	}
 
diff --git a/drivers/ide/ide-dma-sff.c b/drivers/ide/ide-dma-sff.c
index 22b3e751d19b..7bf28a9b6f65 100644
--- a/drivers/ide/ide-dma-sff.c
+++ b/drivers/ide/ide-dma-sff.c
@@ -120,7 +120,7 @@ int ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	struct scatterlist *sg;
 	u8 is_trm290 = !!(hwif->host_flags & IDE_HFLAG_TRM290);
 
-	for_each_sg(hwif->sg_table, sg, hwif->sg_nents, i) {
+	for_each_sg(hwif->sg_table, sg, hwif->cmd.sg_nents, i) {
 		u32 cur_addr, cur_len, xcount, bcount;
 
 		cur_addr = sg_dma_address(sg);
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 54f17ae9225d..cba9fe585d87 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -128,21 +128,22 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct scatterlist *sg = hwif->sg_table;
+	struct ide_cmd *cmd = &hwif->cmd;
 	int i;
 
 	ide_map_sg(drive, rq);
 
 	if (rq_data_dir(rq) == READ)
-		hwif->sg_dma_direction = DMA_FROM_DEVICE;
+		cmd->sg_dma_direction = DMA_FROM_DEVICE;
 	else
-		hwif->sg_dma_direction = DMA_TO_DEVICE;
+		cmd->sg_dma_direction = DMA_TO_DEVICE;
 
-	i = dma_map_sg(hwif->dev, sg, hwif->sg_nents, hwif->sg_dma_direction);
+	i = dma_map_sg(hwif->dev, sg, cmd->sg_nents, cmd->sg_dma_direction);
 	if (i == 0)
 		ide_map_sg(drive, rq);
 	else {
-		hwif->orig_sg_nents = hwif->sg_nents;
-		hwif->sg_nents = i;
+		cmd->orig_sg_nents = cmd->sg_nents;
+		cmd->sg_nents = i;
 	}
 
 	return i;
@@ -162,9 +163,10 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 void ide_destroy_dmatable(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
+	struct ide_cmd *cmd = &hwif->cmd;
 
-	dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->orig_sg_nents,
-		     hwif->sg_dma_direction);
+	dma_unmap_sg(hwif->dev, hwif->sg_table, cmd->orig_sg_nents,
+		     cmd->sg_dma_direction);
 }
 EXPORT_SYMBOL_GPL(ide_destroy_dmatable);
 
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 5625946739ad..f56e9a918b99 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -244,6 +244,7 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 {
 	struct ide_disk_obj *floppy = drive->driver_data;
 	ide_hwif_t *hwif = drive->hwif;
+	struct ide_cmd *cmd = &hwif->cmd;
 	struct ide_atapi_pc *pc;
 
 	if (drive->debug_mask & IDE_DBG_RQ)
@@ -285,12 +286,12 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 	}
 
 	if (blk_fs_request(rq) || pc->req_xfer) {
-		ide_init_sg_cmd(drive, rq);
+		ide_init_sg_cmd(cmd, rq->nr_sectors);
 		ide_map_sg(drive, rq);
 	}
 
 	pc->sg = hwif->sg_table;
-	pc->sg_cnt = hwif->sg_nents;
+	pc->sg_cnt = cmd->sg_nents;
 
 	pc->rq = rq;
 
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 2900271c6ddd..7917fa09bf15 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -274,30 +274,26 @@ static ide_startstop_t do_special (ide_drive_t *drive)
 void ide_map_sg(ide_drive_t *drive, struct request *rq)
 {
 	ide_hwif_t *hwif = drive->hwif;
+	struct ide_cmd *cmd = &hwif->cmd;
 	struct scatterlist *sg = hwif->sg_table;
 
 	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
 		sg_init_one(sg, rq->buffer, rq->nr_sectors * SECTOR_SIZE);
-		hwif->sg_nents = 1;
+		cmd->sg_nents = 1;
 	} else if (!rq->bio) {
 		sg_init_one(sg, rq->data, rq->data_len);
-		hwif->sg_nents = 1;
-	} else {
-		hwif->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
-	}
+		cmd->sg_nents = 1;
+	} else
+		cmd->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
 }
-
 EXPORT_SYMBOL_GPL(ide_map_sg);
 
-void ide_init_sg_cmd(ide_drive_t *drive, struct request *rq)
+void ide_init_sg_cmd(struct ide_cmd *cmd, int nsect)
 {
-	ide_hwif_t *hwif = drive->hwif;
-
-	hwif->nsect = hwif->nleft = rq->nr_sectors;
-	hwif->cursg_ofs = 0;
-	hwif->cursg = NULL;
+	cmd->nsect = cmd->nleft = nsect;
+	cmd->cursg_ofs = 0;
+	cmd->cursg = NULL;
 }
-
 EXPORT_SYMBOL_GPL(ide_init_sg_cmd);
 
 /**
@@ -323,7 +319,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 		case TASKFILE_OUT:
 		case TASKFILE_MULTI_IN:
 		case TASKFILE_IN:
-			ide_init_sg_cmd(drive, rq);
+			ide_init_sg_cmd(cmd, rq->nr_sectors);
 			ide_map_sg(drive, rq);
 		default:
 			break;
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index d3bd93afbf2b..249a707f88a4 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -209,7 +209,7 @@ static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct scatterlist *sg = hwif->sg_table;
-	struct scatterlist *cursg = hwif->cursg;
+	struct scatterlist *cursg = cmd->cursg;
 	struct page *page;
 #ifdef CONFIG_HIGHMEM
 	unsigned long flags;
@@ -217,14 +217,14 @@ static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
 	unsigned int offset;
 	u8 *buf;
 
-	cursg = hwif->cursg;
+	cursg = cmd->cursg;
 	if (!cursg) {
 		cursg = sg;
-		hwif->cursg = sg;
+		cmd->cursg = sg;
 	}
 
 	page = sg_page(cursg);
-	offset = cursg->offset + hwif->cursg_ofs * SECTOR_SIZE;
+	offset = cursg->offset + cmd->cursg_ofs * SECTOR_SIZE;
 
 	/* get the current page and offset */
 	page = nth_page(page, (offset >> PAGE_SHIFT));
@@ -235,12 +235,12 @@ static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
 #endif
 	buf = kmap_atomic(page, KM_BIO_SRC_IRQ) + offset;
 
-	hwif->nleft--;
-	hwif->cursg_ofs++;
+	cmd->nleft--;
+	cmd->cursg_ofs++;
 
-	if ((hwif->cursg_ofs * SECTOR_SIZE) == cursg->length) {
-		hwif->cursg = sg_next(hwif->cursg);
-		hwif->cursg_ofs = 0;
+	if ((cmd->cursg_ofs * SECTOR_SIZE) == cursg->length) {
+		cmd->cursg = sg_next(cmd->cursg);
+		cmd->cursg_ofs = 0;
 	}
 
 	/* do the actual data transfer */
@@ -260,7 +260,7 @@ static void ide_pio_multi(ide_drive_t *drive, struct ide_cmd *cmd,
 {
 	unsigned int nsect;
 
-	nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count);
+	nsect = min_t(unsigned int, cmd->nleft, drive->mult_count);
 	while (nsect--)
 		ide_pio_sector(drive, cmd, write);
 }
@@ -295,19 +295,18 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct ide_cmd *cmd,
 				  const char *s, u8 stat)
 {
 	if (cmd->tf_flags & IDE_TFLAG_FS) {
-		ide_hwif_t *hwif = drive->hwif;
-		int sectors = hwif->nsect - hwif->nleft;
+		int sectors = cmd->nsect - cmd->nleft;
 
 		switch (cmd->data_phase) {
 		case TASKFILE_IN:
-			if (hwif->nleft)
+			if (cmd->nleft)
 				break;
 			/* fall through */
 		case TASKFILE_OUT:
 			sectors--;
 			break;
 		case TASKFILE_MULTI_IN:
-			if (hwif->nleft)
+			if (cmd->nleft)
 				break;
 			/* fall through */
 		case TASKFILE_MULTI_OUT:
@@ -375,7 +374,7 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive)
 	ide_pio_datablock(drive, cmd, 0);
 
 	/* Are we done? Check status and finish transfer. */
-	if (!hwif->nleft) {
+	if (cmd->nleft == 0) {
 		stat = wait_drive_not_busy(drive);
 		if (!OK_STAT(stat, 0, BAD_STAT))
 			return task_error(drive, cmd, __func__, stat);
@@ -402,10 +401,10 @@ static ide_startstop_t task_out_intr (ide_drive_t *drive)
 		return task_error(drive, cmd, __func__, stat);
 
 	/* Deal with unexpected ATA data phase. */
-	if (((stat & ATA_DRQ) == 0) ^ !hwif->nleft)
+	if (((stat & ATA_DRQ) == 0) ^ (cmd->nleft == 0))
 		return task_error(drive, cmd, __func__, stat);
 
-	if (!hwif->nleft) {
+	if (cmd->nleft == 0) {
 		ide_finish_cmd(drive, cmd, stat);
 		return ide_stopped;
 	}
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index 904fb54668e8..f5b85f4c1b65 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -1432,7 +1432,7 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
 	struct scatterlist *sg;
 	int wr = (rq_data_dir(rq) == WRITE);
-	int i = hwif->sg_nents, count = 0;
+	int i = hwif->cmd.sg_nents, count = 0;
 
 	/* DMA table is already aligned */
 	table = (struct dbdma_cmd *) pmif->dma_table_cpu;
diff --git a/drivers/ide/sgiioc4.c b/drivers/ide/sgiioc4.c
index ab9433a7ad1f..b0769e96d32f 100644
--- a/drivers/ide/sgiioc4.c
+++ b/drivers/ide/sgiioc4.c
@@ -429,7 +429,7 @@ sgiioc4_build_dma_table(ide_drive_t * drive, struct request *rq, int ddir)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	unsigned int *table = hwif->dmatable_cpu;
-	unsigned int count = 0, i = hwif->sg_nents;
+	unsigned int count = 0, i = hwif->cmd.sg_nents;
 	struct scatterlist *sg = hwif->sg_table;
 
 	while (i && sg_dma_len(sg)) {
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index bf11791476f0..8d155ec8cca9 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -240,7 +240,7 @@ static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(hwif->sg_table, sg, hwif->sg_nents, i) {
+	for_each_sg(hwif->sg_table, sg, hwif->cmd.sg_nents, i) {
 		u32 cur_addr, cur_len, bcount;
 
 		cur_addr = sg_dma_address(sg);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 1785582e1f86..02128e9241d1 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -344,6 +344,16 @@ struct ide_cmd {
 	u8			ftf_flags;	/* for TASKFILE ioctl */
 	u32			tf_flags;
 	int			data_phase;
+
+	int			sg_nents;	  /* number of sg entries */
+	int			orig_sg_nents;
+	int			sg_dma_direction; /* DMA transfer direction */
+
+	unsigned int		nsect;
+	unsigned int		nleft;
+	struct scatterlist	*cursg;
+	unsigned int		cursg_ofs;
+
 	struct request		*rq;		/* copy of request */
 	void			*special;	/* valid_t generally */
 };
@@ -772,17 +782,9 @@ typedef struct hwif_s {
 	/* Scatter-gather list used to build the above */
 	struct scatterlist *sg_table;
 	int sg_max_nents;		/* Maximum number of entries in it */
-	int sg_nents;			/* Current number of entries in it */
-	int orig_sg_nents;
-	int sg_dma_direction;		/* dma transfer direction */
 
 	struct ide_cmd cmd;		/* current command */
 
-	unsigned int nsect;
-	unsigned int nleft;
-	struct scatterlist *cursg;
-	unsigned int cursg_ofs;
-
 	int		rqsize;		/* max sectors per request */
 	int		irq;		/* our irq number */
 
@@ -1410,7 +1412,7 @@ int ide_pci_resume(struct pci_dev *);
 #endif
 
 void ide_map_sg(ide_drive_t *, struct request *);
-void ide_init_sg_cmd(ide_drive_t *, struct request *);
+void ide_init_sg_cmd(struct ide_cmd *, int);
 
 #define BAD_DMA_DRIVE		0
 #define GOOD_DMA_DRIVE		1
-- 
cgit v1.2.3


From 0dfb991c6943c810175376b58d1c29cfe532541b Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:39 +0100
Subject: ide: use ata_tf_protocols enums

* Add IDE_TFLAG_MULTI_PIO taskfile flag and set it for commands
  using multi-PIO protocol.

* Use ata_tf_protocols enums instead of TASKFILE_* defines to
  denote command's protocol and then rename ->data_phase field
  to ->protocol.

* Remove no longer needed <linux/hdreg.h> includes.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-disk.c      | 34 +++++++------------
 drivers/ide/ide-disk_proc.c |  5 ++-
 drivers/ide/ide-io.c        | 11 ++----
 drivers/ide/ide-ioctls.c    |  2 +-
 drivers/ide/ide-park.c      |  4 +--
 drivers/ide/ide-pm.c        |  5 ++-
 drivers/ide/ide-taskfile.c  | 83 +++++++++++++++++++--------------------------
 include/linux/ide.h         |  3 +-
 8 files changed, 58 insertions(+), 89 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index d00d807c0f53..dae9d988de10 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -28,7 +28,6 @@
 #include <linux/mutex.h>
 #include <linux/leds.h>
 #include <linux/ide.h>
-#include <linux/hdreg.h>
 
 #include <asm/byteorder.h>
 #include <asm/irq.h>
@@ -53,15 +52,6 @@ static const u8 ide_rw_cmds[] = {
 	ATA_CMD_WRITE_EXT,
 };
 
-static const u8 ide_data_phases[] = {
-	TASKFILE_MULTI_IN,
-	TASKFILE_MULTI_OUT,
-	TASKFILE_IN,
-	TASKFILE_OUT,
-	TASKFILE_IN_DMA,
-	TASKFILE_OUT_DMA,
-};
-
 static void ide_tf_set_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 dma)
 {
 	u8 index, lba48, write;
@@ -69,17 +59,19 @@ static void ide_tf_set_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 dma)
 	lba48 = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 2 : 0;
 	write = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0;
 
-	if (dma)
+	if (dma) {
+		cmd->protocol = ATA_PROT_DMA;
 		index = 8;
-	else
-		index = drive->mult_count ? 0 : 4;
+	} else {
+		cmd->protocol = ATA_PROT_PIO;
+		if (drive->mult_count) {
+			cmd->tf_flags |= IDE_TFLAG_MULTI_PIO;
+			index = 0;
+		} else
+			index = 4;
+	}
 
 	cmd->tf.command = ide_rw_cmds[index + lba48 + write];
-
-	if (dma)
-		index = 8; /* fixup index */
-
-	cmd->data_phase = ide_data_phases[index / 2 + write];
 }
 
 /*
@@ -401,9 +393,9 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq)
 		cmd->tf.command = ATA_CMD_FLUSH_EXT;
 	else
 		cmd->tf.command = ATA_CMD_FLUSH;
-	cmd->tf_flags	 = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE |
-			   IDE_TFLAG_DYN;
-	cmd->data_phase = TASKFILE_NO_DATA;
+	cmd->tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE |
+			IDE_TFLAG_DYN;
+	cmd->protocol = ATA_PROT_NODATA;
 
 	rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
 	rq->cmd_flags |= REQ_SOFTBARRIER;
diff --git a/drivers/ide/ide-disk_proc.c b/drivers/ide/ide-disk_proc.c
index afe4f47e9e19..eaea3bef2073 100644
--- a/drivers/ide/ide-disk_proc.c
+++ b/drivers/ide/ide-disk_proc.c
@@ -1,6 +1,5 @@
 #include <linux/kernel.h>
 #include <linux/ide.h>
-#include <linux/hdreg.h>
 
 #include "ide-disk.h"
 
@@ -30,8 +29,8 @@ static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
 	tf->lbam    = ATA_SMART_LBAM_PASS;
 	tf->lbah    = ATA_SMART_LBAH_PASS;
 	tf->command = ATA_CMD_SMART;
-	cmd.tf_flags	= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	cmd.data_phase	= TASKFILE_IN;
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	cmd.protocol = ATA_PROT_PIO;
 
 	return ide_raw_taskfile(drive, &cmd, buf, 1);
 }
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 7917fa09bf15..c27eaab1ffcf 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -40,7 +40,6 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/ide.h>
-#include <linux/hdreg.h>
 #include <linux/completion.h>
 #include <linux/reboot.h>
 #include <linux/cdrom.h>
@@ -220,7 +219,7 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive)
 	struct ide_cmd cmd;
 
 	memset(&cmd, 0, sizeof(cmd));
-	cmd.data_phase = TASKFILE_NO_DATA;
+	cmd.protocol = ATA_PROT_NODATA;
 
 	if (s->b.set_geometry) {
 		s->b.set_geometry = 0;
@@ -314,15 +313,9 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 	struct ide_cmd *cmd = rq->special;
 
 	if (cmd) {
-		switch (cmd->data_phase) {
-		case TASKFILE_MULTI_OUT:
-		case TASKFILE_OUT:
-		case TASKFILE_MULTI_IN:
-		case TASKFILE_IN:
+		if (cmd->protocol == ATA_PROT_PIO) {
 			ide_init_sg_cmd(cmd, rq->nr_sectors);
 			ide_map_sg(drive, rq);
-		default:
-			break;
 		}
 
 		return do_rw_taskfile(drive, cmd);
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 4953028a13d4..770142767437 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -148,7 +148,7 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
 			       IDE_TFLAG_IN_NSECT;
 	}
 	tf->command = args[0];
-	cmd.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA;
+	cmd.protocol = args[3] ? ATA_PROT_PIO : ATA_PROT_NODATA;
 
 	if (args[3]) {
 		cmd.tf_flags |= IDE_TFLAG_IO_16BIT;
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
index 63c77f99a726..c575900d5596 100644
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -1,6 +1,5 @@
 #include <linux/kernel.h>
 #include <linux/ide.h>
-#include <linux/hdreg.h>
 #include <linux/jiffies.h>
 #include <linux/blkdev.h>
 
@@ -80,8 +79,9 @@ ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
 		tf->command = ATA_CMD_CHK_POWER;
 
 	cmd.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	cmd.protocol = ATA_PROT_NODATA;
+
 	cmd.rq = rq;
-	cmd.data_phase = TASKFILE_NO_DATA;
 
 	return do_rw_taskfile(drive, &cmd);
 }
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index 5c9fc20f95b5..ebf2d21ebdcb 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -1,6 +1,5 @@
 #include <linux/kernel.h>
 #include <linux/ide.h>
-#include <linux/hdreg.h>
 
 int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 {
@@ -164,8 +163,8 @@ ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq)
 	return ide_stopped;
 
 out_do_tf:
-	cmd->tf_flags	 = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	cmd->data_phase = TASKFILE_NO_DATA;
+	cmd->tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	cmd->protocol = ATA_PROT_NODATA;
 
 	return do_rw_taskfile(drive, cmd);
 }
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 647216c772d9..0c9d71485728 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -47,8 +47,8 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
 		cmd.tf.command = ATA_CMD_ID_ATA;
 	else
 		cmd.tf.command = ATA_CMD_ID_ATAPI;
-	cmd.tf_flags	= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-	cmd.data_phase	= TASKFILE_IN;
+	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	cmd.protocol = ATA_PROT_PIO;
 
 	return ide_raw_taskfile(drive, &cmd, buf, 1);
 }
@@ -66,13 +66,11 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 	const struct ide_tp_ops *tp_ops = hwif->tp_ops;
 	const struct ide_dma_ops *dma_ops = hwif->dma_ops;
 
-	if (orig_cmd->data_phase == TASKFILE_MULTI_IN ||
-	    orig_cmd->data_phase == TASKFILE_MULTI_OUT) {
-		if (!drive->mult_count) {
-			printk(KERN_ERR "%s: multimode not set!\n",
-					drive->name);
-			return ide_stopped;
-		}
+	if (orig_cmd->protocol == ATA_PROT_PIO &&
+	    (orig_cmd->tf_flags & IDE_TFLAG_MULTI_PIO) &&
+	    drive->mult_count == 0) {
+		printk(KERN_ERR "%s: multimode not set!\n", drive->name);
+		return ide_stopped;
 	}
 
 	if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
@@ -87,17 +85,16 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 		tp_ops->tf_load(drive, cmd);
 	}
 
-	switch (cmd->data_phase) {
-	case TASKFILE_MULTI_OUT:
-	case TASKFILE_OUT:
-		tp_ops->exec_command(hwif, tf->command);
-		ndelay(400);	/* FIXME */
-		return pre_task_out_intr(drive, cmd);
-	case TASKFILE_MULTI_IN:
-	case TASKFILE_IN:
+	switch (cmd->protocol) {
+	case ATA_PROT_PIO:
+		if (cmd->tf_flags & IDE_TFLAG_WRITE) {
+			tp_ops->exec_command(hwif, tf->command);
+			ndelay(400);	/* FIXME */
+			return pre_task_out_intr(drive, cmd);
+		}
 		handler = task_in_intr;
 		/* fall-through */
-	case TASKFILE_NO_DATA:
+	case ATA_PROT_NODATA:
 		if (handler == NULL)
 			handler = task_no_data_intr;
 		ide_execute_command(drive, tf->command, handler,
@@ -115,9 +112,6 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 }
 EXPORT_SYMBOL_GPL(do_rw_taskfile);
 
-/*
- * Handler for commands without a data phase
- */
 static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
@@ -278,15 +272,10 @@ static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd,
 
 	touch_softlockup_watchdog();
 
-	switch (cmd->data_phase) {
-	case TASKFILE_MULTI_IN:
-	case TASKFILE_MULTI_OUT:
+	if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO)
 		ide_pio_multi(drive, cmd, write);
-		break;
-	default:
+	else
 		ide_pio_sector(drive, cmd, write);
-		break;
-	}
 
 	drive->io_32bit = saved_io_32bit;
 }
@@ -297,22 +286,12 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct ide_cmd *cmd,
 	if (cmd->tf_flags & IDE_TFLAG_FS) {
 		int sectors = cmd->nsect - cmd->nleft;
 
-		switch (cmd->data_phase) {
-		case TASKFILE_IN:
-			if (cmd->nleft)
-				break;
-			/* fall through */
-		case TASKFILE_OUT:
-			sectors--;
-			break;
-		case TASKFILE_MULTI_IN:
-			if (cmd->nleft)
-				break;
-			/* fall through */
-		case TASKFILE_MULTI_OUT:
-			sectors -= drive->mult_count;
-		default:
-			break;
+		if (cmd->protocol == ATA_PROT_PIO &&
+		    ((cmd->tf_flags & IDE_TFLAG_WRITE) || cmd->nleft == 0)) {
+			if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO)
+				sectors -= drive->mult_count;
+			else
+				sectors--;
 		}
 
 		if (sectors > 0)
@@ -425,7 +404,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive,
 			  drive->bad_wstat, WAIT_DRQ)) {
 		printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n",
 			drive->name,
-			cmd->data_phase == TASKFILE_MULTI_OUT ? "MULT" : "",
+			(cmd->tf_flags & IDE_TFLAG_MULTI_PIO) ? "MULT" : "",
 			(drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : "");
 		return startstop;
 	}
@@ -474,7 +453,7 @@ EXPORT_SYMBOL(ide_raw_taskfile);
 
 int ide_no_data_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
 {
-	cmd->data_phase = TASKFILE_NO_DATA;
+	cmd->protocol = ATA_PROT_NODATA;
 
 	return ide_raw_taskfile(drive, cmd, NULL, 0);
 }
@@ -545,7 +524,6 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
 	memcpy(&cmd.tf_array[6], req_task->io_ports,
 	       HDIO_DRIVE_TASK_HDR_SIZE);
 
-	cmd.data_phase = req_task->data_phase;
 	cmd.tf_flags   = IDE_TFLAG_IO_16BIT | IDE_TFLAG_DEVICE |
 			 IDE_TFLAG_IN_TF;
 
@@ -590,10 +568,12 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
 		/* fixup data phase if needed */
 		if (req_task->data_phase == TASKFILE_IN_DMAQ ||
 		    req_task->data_phase == TASKFILE_IN_DMA)
-			cmd.data_phase = TASKFILE_OUT_DMA;
+			cmd.tf_flags |= IDE_TFLAG_WRITE;
 	}
 
-	switch (cmd.data_phase) {
+	cmd.protocol = ATA_PROT_DMA;
+
+	switch (req_task->data_phase) {
 		case TASKFILE_MULTI_OUT:
 			if (!drive->mult_count) {
 				/* (hs): give up if multcount is not set */
@@ -603,8 +583,10 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
 				err = -EPERM;
 				goto abort;
 			}
+			cmd.tf_flags |= IDE_TFLAG_MULTI_PIO;
 			/* fall through */
 		case TASKFILE_OUT:
+			cmd.protocol = ATA_PROT_PIO;
 			/* fall through */
 		case TASKFILE_OUT_DMAQ:
 		case TASKFILE_OUT_DMA:
@@ -621,8 +603,10 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
 				err = -EPERM;
 				goto abort;
 			}
+			cmd.tf_flags |= IDE_TFLAG_MULTI_PIO;
 			/* fall through */
 		case TASKFILE_IN:
+			cmd.protocol = ATA_PROT_PIO;
 			/* fall through */
 		case TASKFILE_IN_DMAQ:
 		case TASKFILE_IN_DMA:
@@ -630,6 +614,7 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
 			data_buf = inbuf;
 			break;
 		case TASKFILE_NO_DATA:
+			cmd.protocol = ATA_PROT_NODATA;
 			break;
 		default:
 			err = -EFAULT;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 02128e9241d1..f9decc9852e9 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -298,6 +298,7 @@ enum {
 	/* struct ide_cmd was allocated using kmalloc() */
 	IDE_TFLAG_DYN			= (1 << 27),
 	IDE_TFLAG_FS			= (1 << 28),
+	IDE_TFLAG_MULTI_PIO		= (1 << 29),
 };
 
 enum {
@@ -343,7 +344,7 @@ struct ide_cmd {
 	};
 	u8			ftf_flags;	/* for TASKFILE ioctl */
 	u32			tf_flags;
-	int			data_phase;
+	int			protocol;
 
 	int			sg_nents;	  /* number of sg entries */
 	int			orig_sg_nents;
-- 
cgit v1.2.3


From 1caf236dafb7291f9fdfe54b12dd945aec0dca03 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:42 +0100
Subject: ide: add ide_end_rq() (v2)

* Move request dequeuing from __ide_end_request() to ide_end_request().

* Rename __ide_end_request() to ide_end_rq() and export it.

* Fix ide_end_rq() to pass original blk_end_request() return value.

* ide_end_dequeued_request() is used only in cdrom_end_request()
  so inline it there and then remove the function.

v2:
* Remove needless BUG_ON() while at it (start_request()'s one is enough).

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-cd.c |  4 ++--
 drivers/ide/ide-io.c | 45 ++++++++++-----------------------------------
 include/linux/ide.h  |  2 +-
 3 files changed, 13 insertions(+), 38 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index bb804ae57bc5..830fd570e760 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -272,8 +272,8 @@ static void cdrom_end_request(ide_drive_t *drive, int uptodate)
 			 * now end the failed request
 			 */
 			if (blk_fs_request(failed)) {
-				if (ide_end_dequeued_request(drive, failed, 0,
-						failed->hard_nr_sectors))
+				if (ide_end_rq(drive, failed, 0,
+						failed->hard_nr_sectors << 9))
 					BUG();
 			} else {
 				if (blk_end_request(failed, -EIO,
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 0873887194f7..e5fcb283702a 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -54,10 +54,9 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
-static int __ide_end_request(ide_drive_t *drive, struct request *rq,
-			     int uptodate, unsigned int nr_bytes, int dequeue)
+int ide_end_rq(ide_drive_t *drive, struct request *rq, int uptodate,
+	       unsigned int nr_bytes)
 {
-	int ret = 1;
 	int error = 0;
 
 	if (uptodate <= 0)
@@ -83,14 +82,9 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq,
 		ide_dma_on(drive);
 	}
 
-	if (!blk_end_request(rq, error, nr_bytes))
-		ret = 0;
-
-	if (ret == 0 && dequeue)
-		drive->hwif->rq = NULL;
-
-	return ret;
+	return blk_end_request(rq, error, nr_bytes);
 }
+EXPORT_SYMBOL_GPL(ide_end_rq);
 
 /**
  *	ide_end_request		-	complete an IDE I/O
@@ -107,6 +101,7 @@ int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
 {
 	unsigned int nr_bytes = nr_sectors << 9;
 	struct request *rq = drive->hwif->rq;
+	int rc;
 
 	if (!nr_bytes) {
 		if (blk_pc_request(rq))
@@ -115,33 +110,13 @@ int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
 			nr_bytes = rq->hard_cur_sectors << 9;
 	}
 
-	return __ide_end_request(drive, rq, uptodate, nr_bytes, 1);
-}
-EXPORT_SYMBOL(ide_end_request);
-
-/**
- *	ide_end_dequeued_request	-	complete an IDE I/O
- *	@drive: IDE device for the I/O
- *	@uptodate:
- *	@nr_sectors: number of sectors completed
- *
- *	Complete an I/O that is no longer on the request queue. This
- *	typically occurs when we pull the request and issue a REQUEST_SENSE.
- *	We must still finish the old request but we must not tamper with the
- *	queue in the meantime.
- *
- *	NOTE: This path does not handle barrier, but barrier is not supported
- *	on ide-cd anyway.
- */
-
-int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
-			     int uptodate, int nr_sectors)
-{
-	BUG_ON(!blk_rq_started(rq));
+	rc = ide_end_rq(drive, rq, uptodate, nr_bytes);
+	if (rc == 0)
+		drive->hwif->rq = NULL;
 
-	return __ide_end_request(drive, rq, uptodate, nr_sectors << 9, 0);
+	return rc;
 }
-EXPORT_SYMBOL_GPL(ide_end_dequeued_request);
+EXPORT_SYMBOL(ide_end_request);
 
 void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 {
diff --git a/include/linux/ide.h b/include/linux/ide.h
index f9decc9852e9..f910f4ccfaa0 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1131,8 +1131,8 @@ int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned l
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
 
+int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int);
 int ide_end_request(ide_drive_t *, int, int);
-int ide_end_dequeued_request(ide_drive_t *, struct request *, int, int);
 void ide_kill_rq(ide_drive_t *, struct request *);
 
 void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,
-- 
cgit v1.2.3


From 6902a5331256e1b9f4cef95a1e3622252113b260 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:43 +0100
Subject: ide: pass error value to ide_complete_rq()

Set rq->errors at ide_complete_rq() call sites and then pass
error value to ide_complete_rq().

[ Some rq->errors assignments look really wrong but this patch
  leaves them alone to not introduce too many changes at once. ]

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c    |  5 +++--
 drivers/ide/ide-eh.c       |  5 +++--
 drivers/ide/ide-floppy.c   |  2 +-
 drivers/ide/ide-io.c       | 19 +++++++++----------
 drivers/ide/ide-tape.c     |  2 +-
 drivers/ide/ide-taskfile.c |  4 +++-
 include/linux/ide.h        |  2 +-
 7 files changed, 21 insertions(+), 18 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 92c6ef6feb57..5d57af29c4c8 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -402,9 +402,10 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 		if (uptodate == 0)
 			drive->failed_pc = NULL;
 
-		if (blk_special_request(rq))
+		if (blk_special_request(rq)) {
+			rq->errors = 0;
 			ide_complete_rq(drive, 0);
-		else
+		} else
 			ide_end_request(drive, uptodate, 0);
 
 		return ide_stopped;
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
index f6e1a82a3cc5..d1385d332e94 100644
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -123,17 +123,18 @@ ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat)
 
 	/* retry only "normal" I/O: */
 	if (!blk_fs_request(rq)) {
-		rq->errors = 1;
 		if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
 			struct ide_cmd *cmd = rq->special;
 
 			if (cmd)
 				ide_complete_cmd(drive, cmd, stat, err);
 		} else if (blk_pm_request(rq)) {
+			rq->errors = 1;
 			ide_complete_pm_rq(drive, rq);
 			return ide_stopped;
 		}
-		ide_complete_rq(drive, err);
+		rq->errors = err;
+		ide_complete_rq(drive, err ? -EIO : 0);
 		return ide_stopped;
 	}
 
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index f56e9a918b99..407e4914dfd1 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -260,7 +260,7 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 			printk(KERN_ERR PFX "%s: I/O error\n", drive->name);
 
 		if (blk_special_request(rq)) {
-			rq->errors = IDE_DRV_ERROR_GENERAL;
+			rq->errors = 0;
 			ide_complete_rq(drive, 0);
 			return ide_stopped;
 		} else
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index c38426de6041..4cc2bb13f1d6 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -144,17 +144,14 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 		kfree(cmd);
 }
 
-void ide_complete_rq(ide_drive_t *drive, u8 err)
+void ide_complete_rq(ide_drive_t *drive, int error)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->rq;
 
 	hwif->rq = NULL;
 
-	rq->errors = err;
-
-	if (unlikely(blk_end_request(rq, (rq->errors ? -EIO : 0),
-				     blk_rq_bytes(rq))))
+	if (unlikely(blk_end_request(rq, error, blk_rq_bytes(rq))))
 		BUG();
 }
 EXPORT_SYMBOL(ide_complete_rq);
@@ -166,13 +163,14 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 
 	drive->failed_pc = NULL;
 
-	if ((media == ide_floppy && drv_req) || media == ide_tape)
-		rq->errors = IDE_DRV_ERROR_GENERAL;
-
-	if ((media == ide_floppy || media == ide_tape) && drv_req)
+	if ((media == ide_floppy || media == ide_tape) && drv_req) {
+		rq->errors = 0;
 		ide_complete_rq(drive, 0);
-	else
+	} else {
+		if (media == ide_tape)
+			rq->errors = IDE_DRV_ERROR_GENERAL;
 		ide_end_request(drive, 0, 0);
+	}
 }
 
 static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
@@ -312,6 +310,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 #ifdef DEBUG
  	printk("%s: DRIVE_CMD (null)\n", drive->name);
 #endif
+	rq->errors = 0;
 	ide_complete_rq(drive, 0);
 
  	return ide_stopped;
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index a42e49c6cc3f..3bfcd7290ce0 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -774,8 +774,8 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
 		if (rq != postponed_rq) {
 			printk(KERN_ERR "ide-tape: ide-tape.c bug - "
 					"Two DSC requests were queued\n");
-			rq->errors = IDE_DRV_ERROR_GENERAL;
 			drive->failed_pc = NULL;
+			rq->errors = 0;
 			ide_complete_rq(drive, 0);
 			return ide_stopped;
 		}
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index f99a6aaad9eb..e9d008ef3f33 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -289,10 +289,12 @@ static void ide_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
 
 void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat)
 {
+	struct request *rq = drive->hwif->rq;
 	u8 err = ide_read_error(drive);
 
 	ide_complete_cmd(drive, cmd, stat, err);
-	ide_complete_rq(drive, err);
+	rq->errors = err;
+	ide_complete_rq(drive, err ? -EIO : 0);
 }
 
 /*
diff --git a/include/linux/ide.h b/include/linux/ide.h
index f910f4ccfaa0..32369d5797de 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1166,7 +1166,7 @@ extern int ide_devset_execute(ide_drive_t *drive,
 			      const struct ide_devset *setting, int arg);
 
 void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8);
-void ide_complete_rq(ide_drive_t *, u8);
+void ide_complete_rq(ide_drive_t *, int);
 
 void ide_tf_dump(const char *, struct ide_taskfile *);
 
-- 
cgit v1.2.3


From a9587fd8c48415cc93fef7f4ba7748a5d3477e7b Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:44 +0100
Subject: ide: remove BUG() from ide_complete_rq()

It is no longer needed so remove it, also while at it dequeue the request
only on blk_end_request() success and make ide_complete_rq() return an error
value.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-io.c | 10 ++++++----
 include/linux/ide.h  |  2 +-
 2 files changed, 7 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 28ac463dde1c..4a79d28600f5 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -141,15 +141,17 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 		kfree(cmd);
 }
 
-void ide_complete_rq(ide_drive_t *drive, int error)
+int ide_complete_rq(ide_drive_t *drive, int error)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->rq;
+	int rc;
 
-	hwif->rq = NULL;
+	rc = blk_end_request(rq, error, blk_rq_bytes(rq));
+	if (rc == 0)
+		hwif->rq = NULL;
 
-	if (unlikely(blk_end_request(rq, error, blk_rq_bytes(rq))))
-		BUG();
+	return rc;
 }
 EXPORT_SYMBOL(ide_complete_rq);
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 32369d5797de..bb62bfaf02e0 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1166,7 +1166,7 @@ extern int ide_devset_execute(ide_drive_t *drive,
 			      const struct ide_devset *setting, int arg);
 
 void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8);
-void ide_complete_rq(ide_drive_t *, int);
+int ide_complete_rq(ide_drive_t *, int);
 
 void ide_tf_dump(const char *, struct ide_taskfile *);
 
-- 
cgit v1.2.3


From f974b196f58fe042c7b2b4c0ee15d5a6112dbf40 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:44 +0100
Subject: ide: pass number of bytes to complete to ide_complete_rq()

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c    | 2 +-
 drivers/ide/ide-eh.c       | 2 +-
 drivers/ide/ide-floppy.c   | 2 +-
 drivers/ide/ide-io.c       | 8 ++++----
 drivers/ide/ide-tape.c     | 2 +-
 drivers/ide/ide-taskfile.c | 2 +-
 include/linux/ide.h        | 2 +-
 7 files changed, 10 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 5504a84e9bd6..30156aa61016 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -404,7 +404,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 
 		if (blk_special_request(rq)) {
 			rq->errors = 0;
-			ide_complete_rq(drive, 0);
+			ide_complete_rq(drive, 0, blk_rq_bytes(rq));
 		} else {
 			if (blk_fs_request(rq) == 0 && uptodate <= 0) {
 				if (rq->errors == 0)
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
index 6ad419414f95..ccfd06ef5bb9 100644
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -134,7 +134,7 @@ ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat)
 			return ide_stopped;
 		}
 		rq->errors = err;
-		ide_complete_rq(drive, err ? -EIO : 0);
+		ide_complete_rq(drive, err ? -EIO : 0, blk_rq_bytes(rq));
 		return ide_stopped;
 	}
 
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 572aa9696dad..7ef2b90e530a 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -261,7 +261,7 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 
 		if (blk_special_request(rq)) {
 			rq->errors = 0;
-			ide_complete_rq(drive, 0);
+			ide_complete_rq(drive, 0, blk_rq_bytes(rq));
 			return ide_stopped;
 		} else
 			goto out_end;
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 4a79d28600f5..a4aa4bf84738 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -141,13 +141,13 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 		kfree(cmd);
 }
 
-int ide_complete_rq(ide_drive_t *drive, int error)
+int ide_complete_rq(ide_drive_t *drive, int error, unsigned int nr_bytes)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->rq;
 	int rc;
 
-	rc = blk_end_request(rq, error, blk_rq_bytes(rq));
+	rc = blk_end_request(rq, error, nr_bytes);
 	if (rc == 0)
 		hwif->rq = NULL;
 
@@ -164,7 +164,7 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 
 	if ((media == ide_floppy || media == ide_tape) && drv_req) {
 		rq->errors = 0;
-		ide_complete_rq(drive, 0);
+		ide_complete_rq(drive, 0, blk_rq_bytes(rq));
 	} else {
 		if (media == ide_tape)
 			rq->errors = IDE_DRV_ERROR_GENERAL;
@@ -312,7 +312,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
  	printk("%s: DRIVE_CMD (null)\n", drive->name);
 #endif
 	rq->errors = 0;
-	ide_complete_rq(drive, 0);
+	ide_complete_rq(drive, 0, blk_rq_bytes(rq));
 
  	return ide_stopped;
 }
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 94f6fb8c147a..2df708927687 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -778,7 +778,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
 					"Two DSC requests were queued\n");
 			drive->failed_pc = NULL;
 			rq->errors = 0;
-			ide_complete_rq(drive, 0);
+			ide_complete_rq(drive, 0, blk_rq_bytes(rq));
 			return ide_stopped;
 		}
 
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index e9d008ef3f33..b9d7ba2c8a00 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -294,7 +294,7 @@ void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat)
 
 	ide_complete_cmd(drive, cmd, stat, err);
 	rq->errors = err;
-	ide_complete_rq(drive, err ? -EIO : 0);
+	ide_complete_rq(drive, err ? -EIO : 0, blk_rq_bytes(rq));
 }
 
 /*
diff --git a/include/linux/ide.h b/include/linux/ide.h
index bb62bfaf02e0..cbfb64fdeda7 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1166,7 +1166,7 @@ extern int ide_devset_execute(ide_drive_t *drive,
 			      const struct ide_devset *setting, int arg);
 
 void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8);
-int ide_complete_rq(ide_drive_t *, int);
+int ide_complete_rq(ide_drive_t *, int, unsigned int);
 
 void ide_tf_dump(const char *, struct ide_taskfile *);
 
-- 
cgit v1.2.3


From 130e886708d6e11f3d54e5d27c266578de56f343 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:45 +0100
Subject: ide: remove ide_end_request()

* Add ide_rq_bytes() helper.

* Add blk_noretry_request() quirk to ide_complete_rq() (currently only fs
  requests can be marked as "noretry" so there is no change in behavior).

* Switch current ide_end_request() users to use ide_complete_rq().

  [ No need to check for rq->nr_sectors == 0 in {ide_dma,task_pio}_intr(),
    nsectors == 0 in cdrom_end_request() and err == 0 in ide_do_devset(). ]

* Remove no longer needed ide_end_request().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c    |  6 +++--
 drivers/ide/ide-cd.c       |  7 +++---
 drivers/ide/ide-devsets.c  |  4 +--
 drivers/ide/ide-disk.c     |  2 +-
 drivers/ide/ide-dma.c      |  3 ++-
 drivers/ide/ide-eh.c       |  2 +-
 drivers/ide/ide-floppy.c   |  4 +--
 drivers/ide/ide-io.c       | 61 ++++++++++++++--------------------------------
 drivers/ide/ide-tape.c     |  2 +-
 drivers/ide/ide-taskfile.c |  4 +--
 include/linux/ide.h        |  2 +-
 11 files changed, 37 insertions(+), 60 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 30156aa61016..c3fd528a1b4d 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -410,7 +410,8 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 				if (rq->errors == 0)
 					rq->errors = -EIO;
 			}
-			ide_end_request(drive, uptodate, 0);
+			ide_complete_rq(drive, uptodate ? 0 : -EIO,
+					ide_rq_bytes(rq));
 		}
 
 		return ide_stopped;
@@ -469,7 +470,8 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 
 		/* FIXME: don't do partial completions */
 		if (drive->media == ide_floppy)
-			ide_end_request(drive, 1, done >> 9);
+			ide_complete_rq(drive, 0,
+					done ? done : ide_rq_bytes(rq));
 	} else
 		xferfunc(drive, NULL, pc->cur_pos, bcount);
 
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index e4fa807fdcfa..2f698c6e913f 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -298,7 +298,7 @@ static void cdrom_end_request(ide_drive_t *drive, int uptodate)
 	if (blk_fs_request(rq) == 0 && uptodate <= 0 && rq->errors == 0)
 		rq->errors = -EIO;
 
-	ide_end_request(drive, uptodate, nsectors);
+	ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
 }
 
 static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st)
@@ -793,10 +793,11 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 		if (dma_error)
 			return ide_error(drive, "dma error", stat);
 		if (blk_fs_request(rq)) {
-			ide_end_request(drive, 1, rq->nr_sectors);
+			ide_complete_rq(drive, 0, rq->nr_sectors
+				? (rq->nr_sectors << 9) : ide_rq_bytes(rq));
 			return ide_stopped;
 		} else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) {
-			ide_end_request(drive, 1, 1);
+			ide_complete_rq(drive, 0, 512);
 			return ide_stopped;
 		}
 		goto end_request;
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
index 7c3953414d47..5bf958e5b1d5 100644
--- a/drivers/ide/ide-devsets.c
+++ b/drivers/ide/ide-devsets.c
@@ -183,8 +183,6 @@ ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
 	err = setfunc(drive, *(int *)&rq->cmd[1]);
 	if (err)
 		rq->errors = err;
-	else
-		err = 1;
-	ide_end_request(drive, err, 0);
+	ide_complete_rq(drive, err, ide_rq_bytes(rq));
 	return ide_stopped;
 }
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index ad9a3f54d21d..d8caa65ca7a5 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -186,7 +186,7 @@ static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 		blk_dump_rq_flags(rq, "ide_do_rw_disk - bad command");
 		if (rq->errors == 0)
 			rq->errors = -EIO;
-		ide_end_request(drive, 0, 0);
+		ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
 		return ide_stopped;
 	}
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 820e5104ba47..8f5e32e692f0 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -101,7 +101,8 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive)
 			if ((cmd->tf_flags & IDE_TFLAG_FS) == 0)
 				ide_finish_cmd(drive, cmd, stat);
 			else
-				ide_end_request(drive, 1, cmd->rq->nr_sectors);
+				ide_complete_rq(drive, 0,
+						cmd->rq->nr_sectors << 9);
 			return ide_stopped;
 		}
 		printk(KERN_ERR "%s: %s: bad DMA status (0x%02x)\n",
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
index ccfd06ef5bb9..aff1a9b04559 100644
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -149,7 +149,7 @@ static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
 	if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET) {
 		if (err <= 0 && rq->errors == 0)
 			rq->errors = -EIO;
-		ide_end_request(drive, err ? err : 1, 0);
+		ide_complete_rq(drive, err ? err : 0, ide_rq_bytes(rq));
 	}
 }
 
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 7ef2b90e530a..8c518c6a6477 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -68,7 +68,7 @@ static void idefloppy_update_buffers(ide_drive_t *drive,
 	struct bio *bio = rq->bio;
 
 	while ((bio = rq->bio) != NULL)
-		ide_end_request(drive, 1, 0);
+		ide_complete_rq(drive, 0, ide_rq_bytes(rq));
 }
 
 static int ide_floppy_callback(ide_drive_t *drive, int dsc)
@@ -300,7 +300,7 @@ out_end:
 	drive->failed_pc = NULL;
 	if (blk_fs_request(rq) == 0 && rq->errors == 0)
 		rq->errors = -EIO;
-	ide_end_request(drive, 0, 0);
+	ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
 	return ide_stopped;
 }
 
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 8e2868617a46..f59c709052d2 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -71,48 +71,6 @@ int ide_end_rq(ide_drive_t *drive, struct request *rq, int error,
 }
 EXPORT_SYMBOL_GPL(ide_end_rq);
 
-/**
- *	ide_end_request		-	complete an IDE I/O
- *	@drive: IDE device for the I/O
- *	@uptodate:
- *	@nr_sectors: number of sectors completed
- *
- *	This is our end_request wrapper function. We complete the I/O
- *	update random number input and dequeue the request, which if
- *	it was tagged may be out of order.
- */
-
-int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
-{
-	unsigned int nr_bytes = nr_sectors << 9;
-	struct request *rq = drive->hwif->rq;
-	int rc, error = 0;
-
-	if (!nr_bytes) {
-		if (blk_pc_request(rq))
-			nr_bytes = rq->data_len;
-		else
-			nr_bytes = rq->hard_cur_sectors << 9;
-	}
-
-	/*
-	 * if failfast is set on a request, override number of sectors
-	 * and complete the whole request right now
-	 */
-	if (blk_noretry_request(rq) && uptodate <= 0)
-		nr_bytes = rq->hard_nr_sectors << 9;
-
-	if (uptodate <= 0)
-		error = uptodate ? uptodate : -EIO;
-
-	rc = ide_end_rq(drive, rq, error, nr_bytes);
-	if (rc == 0)
-		drive->hwif->rq = NULL;
-
-	return rc;
-}
-EXPORT_SYMBOL(ide_end_request);
-
 void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 {
 	struct ide_taskfile *tf = &cmd->tf;
@@ -141,12 +99,29 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 		kfree(cmd);
 }
 
+/* obsolete, blk_rq_bytes() should be used instead */
+unsigned int ide_rq_bytes(struct request *rq)
+{
+	if (blk_pc_request(rq))
+		return rq->data_len;
+	else
+		return rq->hard_cur_sectors << 9;
+}
+EXPORT_SYMBOL_GPL(ide_rq_bytes);
+
 int ide_complete_rq(ide_drive_t *drive, int error, unsigned int nr_bytes)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->rq;
 	int rc;
 
+	/*
+	 * if failfast is set on a request, override number of sectors
+	 * and complete the whole request right now
+	 */
+	if (blk_noretry_request(rq) && error <= 0)
+		nr_bytes = rq->hard_nr_sectors << 9;
+
 	rc = ide_end_rq(drive, rq, error, nr_bytes);
 	if (rc == 0)
 		hwif->rq = NULL;
@@ -170,7 +145,7 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 			rq->errors = IDE_DRV_ERROR_GENERAL;
 		else if (blk_fs_request(rq) == 0 && rq->errors == 0)
 			rq->errors = -EIO;
-		ide_end_request(drive, 0, 0);
+		ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
 	}
 }
 
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 2df708927687..853d047aa78f 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -762,7 +762,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
 			"request queue (%d)\n", drive->name, rq->cmd_type);
 		if (blk_fs_request(rq) == 0 && rq->errors == 0)
 			rq->errors = -EIO;
-		ide_end_request(drive, 0, 0);
+		ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
 		return ide_stopped;
 	}
 
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index b9d7ba2c8a00..db6d7821e45b 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -283,7 +283,7 @@ static void ide_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
 		}
 
 		if (sectors > 0)
-			ide_end_request(drive, 1, sectors);
+			ide_complete_rq(drive, 0, sectors << 9);
 	}
 }
 
@@ -352,7 +352,7 @@ out_end:
 	if ((cmd->tf_flags & IDE_TFLAG_FS) == 0)
 		ide_finish_cmd(drive, cmd, stat);
 	else
-		ide_end_request(drive, 1, cmd->rq->nr_sectors);
+		ide_complete_rq(drive, 0, cmd->rq->nr_sectors << 9);
 	return ide_stopped;
 out_err:
 	ide_error_cmd(drive, cmd);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index cbfb64fdeda7..b6142171baf0 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1131,8 +1131,8 @@ int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned l
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
 
+unsigned int ide_rq_bytes(struct request *);
 int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int);
-int ide_end_request(ide_drive_t *, int, int);
 void ide_kill_rq(ide_drive_t *, struct request *);
 
 void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,
-- 
cgit v1.2.3


From 2298169418f43ba5e0919762a4bab95a1227872a Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:46 +0100
Subject: ide: pass command to ide_map_sg()

* Set IDE_TFLAG_WRITE flag and ->rq also for ATA_CMD_PACKET
  commands.

* Pass command to ->dma_setup method and update all its
  implementations accordingly.

* Pass command instead of request to ide_build_sglist(),
  *_build_dmatable() and ide_map_sg().

While at it:

* Fix scc_dma_setup() documentation + use ATA_DMA_WR define.

* Rename sgiioc4_build_dma_table() to sgiioc4_build_dmatable(),
  change return value type to 'int' and drop unused 'ddir'
  argument.

* Do some minor cleanups in [tx4939]ide_dma_setup().

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/alim15x3.c     |  7 ++++---
 drivers/ide/au1xxx-ide.c   | 15 ++++++---------
 drivers/ide/icside.c       |  7 +++----
 drivers/ide/ide-atapi.c    | 16 ++++++++++++----
 drivers/ide/ide-disk.c     | 10 +++++-----
 drivers/ide/ide-dma-sff.c  | 18 +++++++++---------
 drivers/ide/ide-dma.c      | 15 +++++++--------
 drivers/ide/ide-floppy.c   |  6 +++++-
 drivers/ide/ide-io.c       |  6 +++---
 drivers/ide/ide-taskfile.c |  4 ++--
 drivers/ide/ns87415.c      |  4 ++--
 drivers/ide/pmac.c         | 19 ++++++++-----------
 drivers/ide/scc_pata.c     | 19 +++++++------------
 drivers/ide/sgiioc4.c      | 21 +++++++--------------
 drivers/ide/trm290.c       | 10 +++++-----
 drivers/ide/tx4939ide.c    | 26 ++++++++++----------------
 include/linux/ide.h        | 12 ++++++------
 17 files changed, 101 insertions(+), 114 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
index d3513b6b8530..e837fd9f196f 100644
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -191,17 +191,18 @@ static void ali_set_dma_mode(ide_drive_t *drive, const u8 speed)
 /**
  *	ali15x3_dma_setup	-	begin a DMA phase
  *	@drive:	target device
+ *	@cmd: command
  *
  *	Returns 1 if the DMA cannot be performed, zero on success.
  */
 
-static int ali15x3_dma_setup(ide_drive_t *drive)
+static int ali15x3_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	if (m5229_revision < 0xC2 && drive->media != ide_disk) {
-		if (rq_data_dir(drive->hwif->rq))
+		if (cmd->tf_flags & IDE_TFLAG_WRITE)
 			return 1;	/* try PIO instead of DMA */
 	}
-	return ide_dma_setup(drive);
+	return ide_dma_setup(drive, cmd);
 }
 
 /**
diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
index 3ace0cda5452..58485d6cb026 100644
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -209,15 +209,14 @@ static void auide_set_dma_mode(ide_drive_t *drive, const u8 speed)
  */
 
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-static int auide_build_dmatable(ide_drive_t *drive)
+static int auide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct request *rq = hwif->rq;
 	_auide_hwif *ahwif = &auide_hwif;
 	struct scatterlist *sg;
-	int i = hwif->cmd.sg_nents, iswrite, count = 0;
+	int i = cmd->sg_nents, count = 0;
+	int iswrite = !!(cmd->tf_flags & IDE_TFLAG_WRITE);
 
-	iswrite = (rq_data_dir(rq) == WRITE);
 	/* Save for interrupt context */
 	ahwif->drive = drive;
 
@@ -298,12 +297,10 @@ static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command)
 			    (2*WAIT_CMD), NULL);
 }
 
-static int auide_dma_setup(ide_drive_t *drive)
+static int auide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
-	struct request *rq = drive->hwif->rq;
-
-	if (!auide_build_dmatable(drive)) {
-		ide_map_sg(drive, rq);
+	if (auide_build_dmatable(drive, cmd) == 0) {
+		ide_map_sg(drive, cmd);
 		return 1;
 	}
 
diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c
index bdfeb1222d52..3628b2147902 100644
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -307,15 +307,14 @@ static void icside_dma_start(ide_drive_t *drive)
 	enable_dma(ec->dma);
 }
 
-static int icside_dma_setup(ide_drive_t *drive)
+static int icside_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct expansion_card *ec = ECARD_DEV(hwif->dev);
 	struct icside_state *state = ecard_get_drvdata(ec);
-	struct request *rq = hwif->rq;
 	unsigned int dma_mode;
 
-	if (rq_data_dir(rq))
+	if (cmd->tf_flags & IDE_TFLAG_WRITE)
 		dma_mode = DMA_MODE_WRITE;
 	else
 		dma_mode = DMA_MODE_READ;
@@ -344,7 +343,7 @@ static int icside_dma_setup(ide_drive_t *drive)
 	 * Tell the DMA engine about the SG table and
 	 * data direction.
 	 */
-	set_dma_sg(ec->dma, hwif->sg_table, hwif->cmd.sg_nents);
+	set_dma_sg(ec->dma, hwif->sg_table, cmd->sg_nents);
 	set_dma_mode(ec->dma, dma_mode);
 
 	drive->waiting_for_dma = 1;
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index c3fd528a1b4d..b56af49f876b 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -638,12 +638,20 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
 {
 	struct ide_atapi_pc *pc;
 	ide_hwif_t *hwif = drive->hwif;
+	const struct ide_dma_ops *dma_ops = hwif->dma_ops;
+	struct ide_cmd *cmd = &hwif->cmd;
 	ide_expiry_t *expiry = NULL;
 	struct request *rq = hwif->rq;
 	unsigned int timeout;
 	u32 tf_flags;
 	u16 bcount;
 
+	if (drive->media != ide_floppy) {
+		if (rq_data_dir(rq))
+			cmd->tf_flags |= IDE_TFLAG_WRITE;
+		cmd->rq = rq;
+	}
+
 	if (dev_is_idecd(drive)) {
 		tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
 		bcount = ide_cd_get_xferlen(rq);
@@ -651,8 +659,8 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
 		timeout = ATAPI_WAIT_PC;
 
 		if (drive->dma) {
-			if (ide_build_sglist(drive, rq))
-				drive->dma = !hwif->dma_ops->dma_setup(drive);
+			if (ide_build_sglist(drive, cmd))
+				drive->dma = !dma_ops->dma_setup(drive, cmd);
 			else
 				drive->dma = 0;
 		}
@@ -675,8 +683,8 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
 
 		if ((pc->flags & PC_FLAG_DMA_OK) &&
 		     (drive->dev_flags & IDE_DFLAG_USING_DMA)) {
-			if (ide_build_sglist(drive, rq))
-				drive->dma = !hwif->dma_ops->dma_setup(drive);
+			if (ide_build_sglist(drive, cmd))
+				drive->dma = !dma_ops->dma_setup(drive, cmd);
 			else
 				drive->dma = 0;
 		}
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index d8caa65ca7a5..4b32c4eb7b82 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -99,11 +99,6 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 	memset(&cmd, 0, sizeof(cmd));
 	cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
-	if (dma == 0) {
-		ide_init_sg_cmd(&cmd, nsectors);
-		ide_map_sg(drive, rq);
-	}
-
 	if (drive->dev_flags & IDE_DFLAG_LBA) {
 		if (lba48) {
 			pr_debug("%s: LBA=0x%012llx\n", drive->name,
@@ -156,6 +151,11 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 	ide_tf_set_cmd(drive, &cmd, dma);
 	cmd.rq = rq;
 
+	if (dma == 0) {
+		ide_init_sg_cmd(&cmd, nsectors);
+		ide_map_sg(drive, &cmd);
+	}
+
 	rc = do_rw_taskfile(drive, &cmd);
 
 	if (rc == ide_stopped && dma) {
diff --git a/drivers/ide/ide-dma-sff.c b/drivers/ide/ide-dma-sff.c
index 7bf28a9b6f65..b7eb810c7b8f 100644
--- a/drivers/ide/ide-dma-sff.c
+++ b/drivers/ide/ide-dma-sff.c
@@ -111,7 +111,7 @@ EXPORT_SYMBOL_GPL(ide_dma_host_set);
  *	May also be invoked from trm290.c
  */
 
-int ide_build_dmatable(ide_drive_t *drive, struct request *rq)
+int ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	__le32 *table = (__le32 *)hwif->dmatable_cpu;
@@ -120,7 +120,7 @@ int ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	struct scatterlist *sg;
 	u8 is_trm290 = !!(hwif->host_flags & IDE_HFLAG_TRM290);
 
-	for_each_sg(hwif->sg_table, sg, hwif->cmd.sg_nents, i) {
+	for_each_sg(hwif->sg_table, sg, cmd->sg_nents, i) {
 		u32 cur_addr, cur_len, xcount, bcount;
 
 		cur_addr = sg_dma_address(sg);
@@ -175,6 +175,7 @@ EXPORT_SYMBOL_GPL(ide_build_dmatable);
 /**
  *	ide_dma_setup	-	begin a DMA phase
  *	@drive: target device
+ *	@cmd: command
  *
  *	Build an IDE DMA PRD (IDE speak for scatter gather table)
  *	and then set up the DMA transfer registers for a device
@@ -185,17 +186,16 @@ EXPORT_SYMBOL_GPL(ide_build_dmatable);
  *	is returned.
  */
 
-int ide_dma_setup(ide_drive_t *drive)
+int ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct request *rq = hwif->rq;
-	unsigned int reading = rq_data_dir(rq) ? 0 : ATA_DMA_WR;
 	u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+	u8 rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 0 : ATA_DMA_WR;
 	u8 dma_stat;
 
 	/* fall back to pio! */
-	if (!ide_build_dmatable(drive, rq)) {
-		ide_map_sg(drive, rq);
+	if (ide_build_dmatable(drive, cmd) == 0) {
+		ide_map_sg(drive, cmd);
 		return 1;
 	}
 
@@ -208,9 +208,9 @@ int ide_dma_setup(ide_drive_t *drive)
 
 	/* specify r/w */
 	if (mmio)
-		writeb(reading, (void __iomem *)(hwif->dma_base + ATA_DMA_CMD));
+		writeb(rw, (void __iomem *)(hwif->dma_base + ATA_DMA_CMD));
 	else
-		outb(reading, hwif->dma_base + ATA_DMA_CMD);
+		outb(rw, hwif->dma_base + ATA_DMA_CMD);
 
 	/* read DMA status for INTR & ERROR flags */
 	dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 8f5e32e692f0..ad4edab9b0a9 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -120,7 +120,7 @@ int ide_dma_good_drive(ide_drive_t *drive)
 /**
  *	ide_build_sglist	-	map IDE scatter gather for DMA I/O
  *	@drive: the drive to build the DMA table for
- *	@rq: the request holding the sg list
+ *	@cmd: command
  *
  *	Perform the DMA mapping magic necessary to access the source or
  *	target buffers of a request via DMA.  The lower layers of the
@@ -128,23 +128,22 @@ int ide_dma_good_drive(ide_drive_t *drive)
  *	operate in a portable fashion.
  */
 
-int ide_build_sglist(ide_drive_t *drive, struct request *rq)
+int ide_build_sglist(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct scatterlist *sg = hwif->sg_table;
-	struct ide_cmd *cmd = &hwif->cmd;
 	int i;
 
-	ide_map_sg(drive, rq);
+	ide_map_sg(drive, cmd);
 
-	if (rq_data_dir(rq) == READ)
-		cmd->sg_dma_direction = DMA_FROM_DEVICE;
-	else
+	if (cmd->tf_flags & IDE_TFLAG_WRITE)
 		cmd->sg_dma_direction = DMA_TO_DEVICE;
+	else
+		cmd->sg_dma_direction = DMA_FROM_DEVICE;
 
 	i = dma_map_sg(hwif->dev, sg, cmd->sg_nents, cmd->sg_dma_direction);
 	if (i == 0)
-		ide_map_sg(drive, rq);
+		ide_map_sg(drive, cmd);
 	else {
 		cmd->orig_sg_nents = cmd->sg_nents;
 		cmd->sg_nents = i;
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 8c518c6a6477..ee3e77a7a727 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -285,9 +285,13 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 		goto out_end;
 	}
 
+	if (rq_data_dir(rq))
+		cmd->tf_flags |= IDE_TFLAG_WRITE;
+	cmd->rq = rq;
+
 	if (blk_fs_request(rq) || pc->req_xfer) {
 		ide_init_sg_cmd(cmd, rq->nr_sectors);
-		ide_map_sg(drive, rq);
+		ide_map_sg(drive, cmd);
 	}
 
 	pc->sg = hwif->sg_table;
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index f59c709052d2..47404f5526f1 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -228,11 +228,11 @@ static ide_startstop_t do_special (ide_drive_t *drive)
 	return ide_stopped;
 }
 
-void ide_map_sg(ide_drive_t *drive, struct request *rq)
+void ide_map_sg(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct ide_cmd *cmd = &hwif->cmd;
 	struct scatterlist *sg = hwif->sg_table;
+	struct request *rq = cmd->rq;
 
 	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
 		sg_init_one(sg, rq->buffer, rq->nr_sectors * SECTOR_SIZE);
@@ -273,7 +273,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 	if (cmd) {
 		if (cmd->protocol == ATA_PROT_PIO) {
 			ide_init_sg_cmd(cmd, rq->nr_sectors);
-			ide_map_sg(drive, rq);
+			ide_map_sg(drive, cmd);
 		}
 
 		return do_rw_taskfile(drive, cmd);
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index db6d7821e45b..3b23bd11945e 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -102,8 +102,8 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 		return ide_started;
 	default:
 		if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0 ||
-		    ide_build_sglist(drive, hwif->rq) == 0 ||
-		    dma_ops->dma_setup(drive))
+		    ide_build_sglist(drive, cmd) == 0 ||
+		    dma_ops->dma_setup(drive, cmd))
 			return ide_stopped;
 		dma_ops->dma_exec_cmd(drive, tf->command);
 		dma_ops->dma_start(drive);
diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
index d93c80016326..cf6d9a9c8a27 100644
--- a/drivers/ide/ns87415.c
+++ b/drivers/ide/ns87415.c
@@ -216,11 +216,11 @@ static int ns87415_dma_end(ide_drive_t *drive)
 	return (dma_stat & 7) != 4;
 }
 
-static int ns87415_dma_setup(ide_drive_t *drive)
+static int ns87415_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	/* select DMA xfer */
 	ns87415_prepare_drive(drive, 1);
-	if (!ide_dma_setup(drive))
+	if (ide_dma_setup(drive, cmd) == 0)
 		return 0;
 	/* DMA failed: select PIO xfer */
 	ns87415_prepare_drive(drive, 0);
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index f5b85f4c1b65..337d2d5b3028 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -404,7 +404,6 @@ kauai_lookup_timing(struct kauai_timing* table, int cycle_time)
 #define IDE_WAKEUP_DELAY	(1*HZ)
 
 static int pmac_ide_init_dma(ide_hwif_t *, const struct ide_port_info *);
-static int pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq);
 static void pmac_ide_selectproc(ide_drive_t *drive);
 static void pmac_ide_kauai_selectproc(ide_drive_t *drive);
 
@@ -1422,8 +1421,7 @@ out:
  * pmac_ide_build_dmatable builds the DBDMA command list
  * for a transfer and sets the DBDMA channel to point to it.
  */
-static int
-pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
+static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	pmac_ide_hwif_t *pmif =
@@ -1431,8 +1429,8 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	struct dbdma_cmd *table;
 	volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
 	struct scatterlist *sg;
-	int wr = (rq_data_dir(rq) == WRITE);
-	int i = hwif->cmd.sg_nents, count = 0;
+	int wr = !!(cmd->tf_flags & IDE_TFLAG_WRITE);
+	int i = cmd->sg_nents, count = 0;
 
 	/* DMA table is already aligned */
 	table = (struct dbdma_cmd *) pmif->dma_table_cpu;
@@ -1504,23 +1502,22 @@ use_pio_instead:
  * Prepare a DMA transfer. We build the DMA table, adjust the timings for
  * a read on KeyLargo ATA/66 and mark us as waiting for DMA completion
  */
-static int
-pmac_ide_dma_setup(ide_drive_t *drive)
+static int pmac_ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	pmac_ide_hwif_t *pmif =
 		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
-	struct request *rq = hwif->rq;
 	u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4);
+	u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE);
 
-	if (!pmac_ide_build_dmatable(drive, rq)) {
-		ide_map_sg(drive, rq);
+	if (pmac_ide_build_dmatable(drive, cmd) == 0) {
+		ide_map_sg(drive, cmd);
 		return 1;
 	}
 
 	/* Apple adds 60ns to wrDataSetup on reads */
 	if (ata4 && (pmif->timings[unit] & TR_66_UDMA_EN)) {
-		writel(pmif->timings[unit] + (!rq_data_dir(rq) ? 0x00800000UL : 0),
+		writel(pmif->timings[unit] + (write ? 0 : 0x00800000UL),
 			PMAC_IDE_REG(IDE_TIMING_CONFIG));
 		(void)readl(PMAC_IDE_REG(IDE_TIMING_CONFIG));
 	}
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index ada866744622..1f2805ce9889 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -303,8 +303,9 @@ static void scc_dma_host_set(ide_drive_t *drive, int on)
 }
 
 /**
- *	scc_ide_dma_setup	-	begin a DMA phase
+ *	scc_dma_setup	-	begin a DMA phase
  *	@drive: target device
+ *	@cmd: command
  *
  *	Build an IDE DMA PRD (IDE speak for scatter gather table)
  *	and then set up the DMA transfer registers.
@@ -313,21 +314,15 @@ static void scc_dma_host_set(ide_drive_t *drive, int on)
  *	is returned.
  */
 
-static int scc_dma_setup(ide_drive_t *drive)
+static int scc_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct request *rq = hwif->rq;
-	unsigned int reading;
+	u32 rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 0 : ATA_DMA_WR;
 	u8 dma_stat;
 
-	if (rq_data_dir(rq))
-		reading = 0;
-	else
-		reading = 1 << 3;
-
 	/* fall back to pio! */
-	if (!ide_build_dmatable(drive, rq)) {
-		ide_map_sg(drive, rq);
+	if (ide_build_dmatable(drive, cmd) == 0) {
+		ide_map_sg(drive, cmd);
 		return 1;
 	}
 
@@ -335,7 +330,7 @@ static int scc_dma_setup(ide_drive_t *drive)
 	out_be32((void __iomem *)(hwif->dma_base + 8), hwif->dmatable_dma);
 
 	/* specify r/w */
-	out_be32((void __iomem *)hwif->dma_base, reading);
+	out_be32((void __iomem *)hwif->dma_base, rw);
 
 	/* read DMA status for INTR & ERROR flags */
 	dma_stat = scc_dma_sff_read_status(hwif);
diff --git a/drivers/ide/sgiioc4.c b/drivers/ide/sgiioc4.c
index b0769e96d32f..b12de8346c73 100644
--- a/drivers/ide/sgiioc4.c
+++ b/drivers/ide/sgiioc4.c
@@ -424,12 +424,11 @@ sgiioc4_configure_for_dma(int dma_direction, ide_drive_t * drive)
 /* | Upper 32 bits - Zero	    |EOL| 15 unused     | 16 Bit Length| */
 /* --------------------------------------------------------------------- */
 /* Creates the scatter gather list, DMA Table */
-static unsigned int
-sgiioc4_build_dma_table(ide_drive_t * drive, struct request *rq, int ddir)
+static int sgiioc4_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	unsigned int *table = hwif->dmatable_cpu;
-	unsigned int count = 0, i = hwif->cmd.sg_nents;
+	unsigned int count = 0, i = cmd->sg_nents;
 	struct scatterlist *sg = hwif->sg_table;
 
 	while (i && sg_dma_len(sg)) {
@@ -484,24 +483,18 @@ use_pio_instead:
 	return 0;		/* revert to PIO for this request */
 }
 
-static int sgiioc4_dma_setup(ide_drive_t *drive)
+static int sgiioc4_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
-	struct request *rq = drive->hwif->rq;
-	unsigned int count = 0;
 	int ddir;
+	u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE);
 
-	if (rq_data_dir(rq))
-		ddir = PCI_DMA_TODEVICE;
-	else
-		ddir = PCI_DMA_FROMDEVICE;
-
-	if (!(count = sgiioc4_build_dma_table(drive, rq, ddir))) {
+	if (sgiioc4_build_dmatable(drive, cmd) == 0) {
 		/* try PIO instead of DMA */
-		ide_map_sg(drive, rq);
+		ide_map_sg(drive, cmd);
 		return 1;
 	}
 
-	if (rq_data_dir(rq))
+	if (write)
 		/* Writes TO the IOC4 FROM Main Memory */
 		ddir = IOC4_DMA_READ;
 	else
diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c
index e8279f32f9a2..746858a7338d 100644
--- a/drivers/ide/trm290.c
+++ b/drivers/ide/trm290.c
@@ -181,13 +181,12 @@ static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
 	ide_execute_command(drive, command, &ide_dma_intr, WAIT_CMD, NULL);
 }
 
-static int trm290_dma_setup(ide_drive_t *drive)
+static int trm290_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct request *rq = hwif->rq;
 	unsigned int count, rw;
 
-	if (rq_data_dir(rq)) {
+	if (cmd->tf_flags & IDE_TFLAG_WRITE) {
 #ifdef TRM290_NO_DMA_WRITES
 		/* always use PIO for writes */
 		trm290_prepare_drive(drive, 0);	/* select PIO xfer */
@@ -197,8 +196,9 @@ static int trm290_dma_setup(ide_drive_t *drive)
 	} else
 		rw = 2;
 
-	if (!(count = ide_build_dmatable(drive, rq))) {
-		ide_map_sg(drive, rq);
+	count = ide_build_dmatable(drive, cmd);
+	if (count == 0) {
+		ide_map_sg(drive, cmd);
 		/* try PIO instead of DMA */
 		trm290_prepare_drive(drive, 0); /* select PIO xfer */
 		return 1;
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 8d155ec8cca9..39e3316ab63f 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -232,7 +232,7 @@ static u8 tx4939ide_clear_dma_status(void __iomem *base)
 
 #ifdef __BIG_ENDIAN
 /* custom ide_build_dmatable to handle swapped layout */
-static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
+static int tx4939ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	u32 *table = (u32 *)hwif->dmatable_cpu;
@@ -240,7 +240,7 @@ static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(hwif->sg_table, sg, hwif->cmd.sg_nents, i) {
+	for_each_sg(hwif->sg_table, sg, cmd->sg_nents, i) {
 		u32 cur_addr, cur_len, bcount;
 
 		cur_addr = sg_dma_address(sg);
@@ -287,23 +287,15 @@ use_pio_instead:
 #define tx4939ide_build_dmatable	ide_build_dmatable
 #endif
 
-static int tx4939ide_dma_setup(ide_drive_t *drive)
+static int tx4939ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	void __iomem *base = TX4939IDE_BASE(hwif);
-	struct request *rq = hwif->rq;
-	u8 reading;
-	int nent;
-
-	if (rq_data_dir(rq))
-		reading = 0;
-	else
-		reading = ATA_DMA_WR;
+	u8 rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 0 : ATA_DMA_WR;
 
 	/* fall back to PIO! */
-	nent = tx4939ide_build_dmatable(drive, rq);
-	if (!nent) {
-		ide_map_sg(drive, rq);
+	if (tx4939ide_build_dmatable(drive, cmd) == 0) {
+		ide_map_sg(drive, cmd);
 		return 1;
 	}
 
@@ -311,7 +303,7 @@ static int tx4939ide_dma_setup(ide_drive_t *drive)
 	tx4939ide_writel(hwif->dmatable_dma, base, TX4939IDE_PRD_Ptr);
 
 	/* specify r/w */
-	tx4939ide_writeb(reading, base, TX4939IDE_DMA_Cmd);
+	tx4939ide_writeb(rw, base, TX4939IDE_DMA_Cmd);
 
 	/* clear INTR & ERROR flags */
 	tx4939ide_clear_dma_status(base);
@@ -320,7 +312,9 @@ static int tx4939ide_dma_setup(ide_drive_t *drive)
 
 	tx4939ide_writew(SECTOR_SIZE / 2, base, drive->dn ?
 			 TX4939IDE_Xfer_Cnt_2 : TX4939IDE_Xfer_Cnt_1);
-	tx4939ide_writew(rq->nr_sectors, base, TX4939IDE_Sec_Cnt);
+
+	tx4939ide_writew(cmd->rq->nr_sectors, base, TX4939IDE_Sec_Cnt);
+
 	return 0;
 }
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index b6142171baf0..b30e79c6ff57 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -714,7 +714,7 @@ struct ide_port_ops {
 
 struct ide_dma_ops {
 	void	(*dma_host_set)(struct ide_drive_s *, int);
-	int	(*dma_setup)(struct ide_drive_s *);
+	int	(*dma_setup)(struct ide_drive_s *, struct ide_cmd *);
 	void	(*dma_exec_cmd)(struct ide_drive_s *, u8);
 	void	(*dma_start)(struct ide_drive_s *);
 	int	(*dma_end)(struct ide_drive_s *);
@@ -1412,7 +1412,7 @@ int ide_pci_resume(struct pci_dev *);
 #define ide_pci_resume NULL
 #endif
 
-void ide_map_sg(ide_drive_t *, struct request *);
+void ide_map_sg(ide_drive_t *, struct ide_cmd *);
 void ide_init_sg_cmd(struct ide_cmd *, int);
 
 #define BAD_DMA_DRIVE		0
@@ -1447,14 +1447,14 @@ ide_startstop_t ide_dma_intr(ide_drive_t *);
 int ide_allocate_dma_engine(ide_hwif_t *);
 void ide_release_dma_engine(ide_hwif_t *);
 
-int ide_build_sglist(ide_drive_t *, struct request *);
+int ide_build_sglist(ide_drive_t *, struct ide_cmd *);
 void ide_destroy_dmatable(ide_drive_t *);
 
 #ifdef CONFIG_BLK_DEV_IDEDMA_SFF
 int config_drive_for_dma(ide_drive_t *);
-extern int ide_build_dmatable(ide_drive_t *, struct request *);
+int ide_build_dmatable(ide_drive_t *, struct ide_cmd *);
 void ide_dma_host_set(ide_drive_t *, int);
-extern int ide_dma_setup(ide_drive_t *);
+int ide_dma_setup(ide_drive_t *, struct ide_cmd *);
 void ide_dma_exec_cmd(ide_drive_t *, u8);
 extern void ide_dma_start(ide_drive_t *);
 int ide_dma_end(ide_drive_t *);
@@ -1482,7 +1482,7 @@ static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
 static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
 static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
 static inline int ide_build_sglist(ide_drive_t *drive,
-				   struct request *rq) { return 0; }
+				   struct ide_cmd *cmd) { return 0; }
 #endif /* CONFIG_BLK_DEV_IDEDMA */
 
 #ifdef CONFIG_BLK_DEV_IDEACPI
-- 
cgit v1.2.3


From b788ee9c6561fd9219a503216284d61036a0dc0b Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:46 +0100
Subject: ide: use do_rw_taskfile() for ATA_CMD_PACKET commands

* Pass command to ide_issue_pc() and update ->do_request methods
  in ide-{cd,floppy,tape}.c accordingly.

* Convert ide_pktcmd_tf_load() to ide_init_packet_cmd() which
  just initializes command structure and use do_rw_taskfile()
  to load ATA_CMD_PACKET commands.

While at it:

* Rename ide{floppy,tape}_issue_pc() to ide_{floppy,tape}_issue_pc().

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c    | 37 ++++++++++++-------------------------
 drivers/ide/ide-cd.c       | 11 ++++++++++-
 drivers/ide/ide-floppy.c   | 24 ++++++++++++++----------
 drivers/ide/ide-tape.c     | 19 ++++++++++++++-----
 drivers/ide/ide-taskfile.c |  3 ++-
 include/linux/ide.h        |  2 +-
 6 files changed, 53 insertions(+), 43 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index b56af49f876b..75df05add1b9 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -487,23 +487,15 @@ next_irq:
 	return ide_started;
 }
 
-static void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount)
+static void ide_init_packet_cmd(struct ide_cmd *cmd, u32 tf_flags,
+				u16 bcount, u8 dma)
 {
-	ide_hwif_t *hwif = drive->hwif;
-	struct ide_cmd cmd;
-	u8 dma = drive->dma;
-
-	memset(&cmd, 0, sizeof(cmd));
-	cmd.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
-		       IDE_TFLAG_OUT_FEATURE | tf_flags;
-	cmd.tf.feature = dma;		/* Use PIO/DMA */
-	cmd.tf.lbam    = bcount & 0xff;
-	cmd.tf.lbah    = (bcount >> 8) & 0xff;
-
-	ide_tf_dump(drive->name, &cmd.tf);
-	hwif->tp_ops->set_irq(hwif, 1);
-	SELECT_MASK(drive, 0);
-	hwif->tp_ops->tf_load(drive, &cmd);
+	cmd->protocol  = dma ? ATAPI_PROT_DMA : ATAPI_PROT_PIO;
+	cmd->tf_flags |= IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
+			 IDE_TFLAG_OUT_FEATURE | tf_flags;
+	cmd->tf.feature = dma;		/* Use PIO/DMA */
+	cmd->tf.lbam    = bcount & 0xff;
+	cmd->tf.lbah    = (bcount >> 8) & 0xff;
 }
 
 static u8 ide_read_ireason(ide_drive_t *drive)
@@ -634,24 +626,17 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
 	return ide_started;
 }
 
-ide_startstop_t ide_issue_pc(ide_drive_t *drive)
+ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	struct ide_atapi_pc *pc;
 	ide_hwif_t *hwif = drive->hwif;
 	const struct ide_dma_ops *dma_ops = hwif->dma_ops;
-	struct ide_cmd *cmd = &hwif->cmd;
 	ide_expiry_t *expiry = NULL;
 	struct request *rq = hwif->rq;
 	unsigned int timeout;
 	u32 tf_flags;
 	u16 bcount;
 
-	if (drive->media != ide_floppy) {
-		if (rq_data_dir(rq))
-			cmd->tf_flags |= IDE_TFLAG_WRITE;
-		cmd->rq = rq;
-	}
-
 	if (dev_is_idecd(drive)) {
 		tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
 		bcount = ide_cd_get_xferlen(rq);
@@ -696,7 +681,9 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
 						       : WAIT_TAPE_CMD;
 	}
 
-	ide_pktcmd_tf_load(drive, tf_flags, bcount);
+	ide_init_packet_cmd(cmd, tf_flags, bcount, drive->dma);
+
+	(void)do_rw_taskfile(drive, cmd);
 
 	/* Issue the packet command */
 	if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 2f698c6e913f..a6c847d31b9d 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1066,6 +1066,8 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
 static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
 					sector_t block)
 {
+	struct ide_cmd cmd;
+
 	ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu",
 				  rq->cmd[0], (unsigned long long)block);
 
@@ -1094,7 +1096,14 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
 		return ide_stopped;
 	}
 
-	return ide_issue_pc(drive);
+	memset(&cmd, 0, sizeof(cmd));
+
+	if (rq_data_dir(rq))
+		cmd.tf_flags |= IDE_TFLAG_WRITE;
+
+	cmd.rq = rq;
+
+	return ide_issue_pc(drive, &cmd);
 }
 
 /*
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index ee3e77a7a727..f3ed5de3141b 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -130,8 +130,9 @@ static void ide_floppy_report_error(struct ide_disk_obj *floppy,
 
 }
 
-static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
-		struct ide_atapi_pc *pc)
+static ide_startstop_t ide_floppy_issue_pc(ide_drive_t *drive,
+					   struct ide_cmd *cmd,
+					   struct ide_atapi_pc *pc)
 {
 	struct ide_disk_obj *floppy = drive->driver_data;
 
@@ -157,7 +158,7 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
 
 	pc->retries++;
 
-	return ide_issue_pc(drive);
+	return ide_issue_pc(drive, cmd);
 }
 
 void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *pc)
@@ -244,7 +245,7 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 {
 	struct ide_disk_obj *floppy = drive->driver_data;
 	ide_hwif_t *hwif = drive->hwif;
-	struct ide_cmd *cmd = &hwif->cmd;
+	struct ide_cmd cmd;
 	struct ide_atapi_pc *pc;
 
 	if (drive->debug_mask & IDE_DBG_RQ)
@@ -285,21 +286,24 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 		goto out_end;
 	}
 
+	memset(&cmd, 0, sizeof(cmd));
+
 	if (rq_data_dir(rq))
-		cmd->tf_flags |= IDE_TFLAG_WRITE;
-	cmd->rq = rq;
+		cmd.tf_flags |= IDE_TFLAG_WRITE;
+
+	cmd.rq = rq;
 
 	if (blk_fs_request(rq) || pc->req_xfer) {
-		ide_init_sg_cmd(cmd, rq->nr_sectors);
-		ide_map_sg(drive, cmd);
+		ide_init_sg_cmd(&cmd, rq->nr_sectors);
+		ide_map_sg(drive, &cmd);
 	}
 
 	pc->sg = hwif->sg_table;
-	pc->sg_cnt = cmd->sg_nents;
+	pc->sg_cnt = cmd.sg_nents;
 
 	pc->rq = rq;
 
-	return idefloppy_issue_pc(drive, pc);
+	return ide_floppy_issue_pc(drive, &cmd, pc);
 out_end:
 	drive->failed_pc = NULL;
 	if (blk_fs_request(rq) == 0 && rq->errors == 0)
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 853d047aa78f..64dfa7458f8d 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -580,7 +580,7 @@ static int ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
  *
  * The handling will be done in three stages:
  *
- * 1. idetape_issue_pc will send the packet command to the drive, and will set
+ * 1. ide_tape_issue_pc will send the packet command to the drive, and will set
  * the interrupt handler to ide_pc_intr.
  *
  * 2. On each interrupt, ide_pc_intr will be called. This step will be
@@ -608,8 +608,9 @@ static int ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
  * request.
  */
 
-static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
-		struct ide_atapi_pc *pc)
+static ide_startstop_t ide_tape_issue_pc(ide_drive_t *drive,
+					 struct ide_cmd *cmd,
+					 struct ide_atapi_pc *pc)
 {
 	idetape_tape_t *tape = drive->driver_data;
 
@@ -654,7 +655,7 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
 
 	pc->retries++;
 
-	return ide_issue_pc(drive);
+	return ide_issue_pc(drive, cmd);
 }
 
 /* A mode sense command is used to "sense" tape parameters. */
@@ -749,6 +750,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
 	idetape_tape_t *tape = drive->driver_data;
 	struct ide_atapi_pc *pc = NULL;
 	struct request *postponed_rq = tape->postponed_rq;
+	struct ide_cmd cmd;
 	u8 stat;
 
 	debug_log(DBG_SENSE, "sector: %llu, nr_sectors: %lu,"
@@ -844,7 +846,14 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
 	BUG();
 
 out:
-	return idetape_issue_pc(drive, pc);
+	memset(&cmd, 0, sizeof(cmd));
+
+	if (rq_data_dir(rq))
+		cmd.tf_flags |= IDE_TFLAG_WRITE;
+
+	cmd.rq = rq;
+
+	return ide_tape_issue_pc(drive, &cmd, pc);
 }
 
 /*
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 3b23bd11945e..63ab233ba942 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -100,13 +100,14 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 		ide_execute_command(drive, tf->command, handler,
 				    WAIT_WORSTCASE, NULL);
 		return ide_started;
-	default:
+	case ATA_PROT_DMA:
 		if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0 ||
 		    ide_build_sglist(drive, cmd) == 0 ||
 		    dma_ops->dma_setup(drive, cmd))
 			return ide_stopped;
 		dma_ops->dma_exec_cmd(drive, tf->command);
 		dma_ops->dma_start(drive);
+	default:
 		return ide_started;
 	}
 }
diff --git a/include/linux/ide.h b/include/linux/ide.h
index b30e79c6ff57..e339d6646552 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1226,7 +1226,7 @@ int ide_cd_expiry(ide_drive_t *);
 
 int ide_cd_get_xferlen(struct request *);
 
-ide_startstop_t ide_issue_pc(ide_drive_t *);
+ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_cmd *);
 
 ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *);
 
-- 
cgit v1.2.3


From 60c0cd02b254805691cdc61101ada6af7bd56fde Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:46 +0100
Subject: ide: set hwif->expiry prior to calling [__]ide_set_handler()

* Set hwif->expiry prior to calling [__]ide_set_handler()
  and drop 'expiry' argument.

* Set hwif->expiry to NULL in ide_{timer_expiry,intr}()
  and remove 'hwif->expiry = NULL' assignments.

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c    |  6 ++++--
 drivers/ide/ide-cd.c       |  3 ++-
 drivers/ide/ide-eh.c       |  9 ++++-----
 drivers/ide/ide-io.c       |  2 ++
 drivers/ide/ide-iops.c     | 13 +++++++------
 drivers/ide/ide-taskfile.c |  6 +++---
 include/linux/ide.h        |  6 ++----
 7 files changed, 24 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 75df05add1b9..f1b1b71cb74c 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -483,7 +483,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 		  rq->cmd[0], bcount);
 next_irq:
 	/* And set the interrupt handler again */
-	ide_set_handler(drive, ide_pc_intr, timeout, NULL);
+	ide_set_handler(drive, ide_pc_intr, timeout);
 	return ide_started;
 }
 
@@ -602,11 +602,13 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
 		}
 	}
 
+	hwif->expiry = expiry;
+
 	/* Set the interrupt routine */
 	ide_set_handler(drive,
 			(dev_is_idecd(drive) ? drive->irq_handler
 					     : ide_pc_intr),
-			timeout, expiry);
+			timeout);
 
 	/* Begin DMA, if necessary */
 	if (dev_is_idecd(drive)) {
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index a6c847d31b9d..3f630e4080d4 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -959,7 +959,8 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 			expiry = ide_cd_expiry;
 	}
 
-	ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry);
+	hwif->expiry = expiry;
+	ide_set_handler(drive, cdrom_newpc_intr, timeout);
 	return ide_started;
 
 end_request:
diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c
index aff1a9b04559..11664976eea3 100644
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -175,8 +175,7 @@ static ide_startstop_t atapi_reset_pollfunc(ide_drive_t *drive)
 		printk(KERN_INFO "%s: ATAPI reset complete\n", drive->name);
 	else {
 		if (time_before(jiffies, hwif->poll_timeout)) {
-			ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20,
-					NULL);
+			ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20);
 			/* continue polling */
 			return ide_started;
 		}
@@ -238,7 +237,7 @@ static ide_startstop_t reset_pollfunc(ide_drive_t *drive)
 
 	if (!OK_STAT(tmp, 0, ATA_BUSY)) {
 		if (time_before(jiffies, hwif->poll_timeout)) {
-			ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
+			ide_set_handler(drive, &reset_pollfunc, HZ/20);
 			/* continue polling */
 			return ide_started;
 		}
@@ -355,7 +354,7 @@ static ide_startstop_t do_reset1(ide_drive_t *drive, int do_not_try_atapi)
 		ndelay(400);
 		hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
 		hwif->polling = 1;
-		__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);
+		__ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20);
 		spin_unlock_irqrestore(&hwif->lock, flags);
 		return ide_started;
 	}
@@ -415,7 +414,7 @@ static ide_startstop_t do_reset1(ide_drive_t *drive, int do_not_try_atapi)
 	udelay(10);
 	hwif->poll_timeout = jiffies + WAIT_WORSTCASE;
 	hwif->polling = 1;
-	__ide_set_handler(drive, &reset_pollfunc, HZ/20, NULL);
+	__ide_set_handler(drive, &reset_pollfunc, HZ/20);
 
 	/*
 	 * Some weird controller like resetting themselves to a strange
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 47404f5526f1..b4901b690c9a 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -651,6 +651,7 @@ void ide_timer_expiry (unsigned long data)
 			}
 		}
 		hwif->handler = NULL;
+		hwif->expiry = NULL;
 		/*
 		 * We need to simulate a real interrupt when invoking
 		 * the handler() function, which means we need to
@@ -830,6 +831,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
 		goto out;
 
 	hwif->handler = NULL;
+	hwif->expiry = NULL;
 	hwif->req_gen++;
 	del_timer(&hwif->timer);
 	spin_unlock(&hwif->lock);
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index c3023de7270c..916495ba45df 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -425,26 +425,25 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
  * See also ide_execute_command
  */
 void __ide_set_handler(ide_drive_t *drive, ide_handler_t *handler,
-		       unsigned int timeout, ide_expiry_t *expiry)
+		       unsigned int timeout)
 {
 	ide_hwif_t *hwif = drive->hwif;
 
 	BUG_ON(hwif->handler);
 	hwif->handler		= handler;
-	hwif->expiry		= expiry;
 	hwif->timer.expires	= jiffies + timeout;
 	hwif->req_gen_timer	= hwif->req_gen;
 	add_timer(&hwif->timer);
 }
 
-void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
-		      unsigned int timeout, ide_expiry_t *expiry)
+void ide_set_handler(ide_drive_t *drive, ide_handler_t *handler,
+		     unsigned int timeout)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hwif->lock, flags);
-	__ide_set_handler(drive, handler, timeout, expiry);
+	__ide_set_handler(drive, handler, timeout);
 	spin_unlock_irqrestore(&hwif->lock, flags);
 }
 EXPORT_SYMBOL(ide_set_handler);
@@ -469,8 +468,10 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
 	ide_hwif_t *hwif = drive->hwif;
 	unsigned long flags;
 
+	hwif->expiry = expiry;
+
 	spin_lock_irqsave(&hwif->lock, flags);
-	__ide_set_handler(drive, handler, timeout, expiry);
+	__ide_set_handler(drive, handler, timeout);
 	hwif->tp_ops->exec_command(hwif, cmd);
 	/*
 	 * Drive takes 400nS to respond, we must avoid the IRQ being
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 63ab233ba942..286804142e4d 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -140,7 +140,7 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
 		} else if (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) {
 			if ((stat & (ATA_ERR | ATA_DRQ)) == 0) {
 				ide_set_handler(drive, &task_no_data_intr,
-						WAIT_WORSTCASE, NULL);
+						WAIT_WORSTCASE);
 				return ide_started;
 			}
 		}
@@ -347,7 +347,7 @@ static ide_startstop_t task_pio_intr(ide_drive_t *drive)
 	}
 out_wait:
 	/* Still data left to transfer. */
-	ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE, NULL);
+	ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE);
 	return ide_started;
 out_end:
 	if ((cmd->tf_flags & IDE_TFLAG_FS) == 0)
@@ -377,7 +377,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive,
 	if ((drive->dev_flags & IDE_DFLAG_UNMASK) == 0)
 		local_irq_disable();
 
-	ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE, NULL);
+	ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE);
 
 	ide_pio_datablock(drive, cmd, 1);
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index e339d6646552..476f59885fda 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1135,10 +1135,8 @@ unsigned int ide_rq_bytes(struct request *);
 int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int);
 void ide_kill_rq(ide_drive_t *, struct request *);
 
-void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,
-		       ide_expiry_t *);
-void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,
-		     ide_expiry_t *);
+void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
+void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
 
 void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int,
 			 ide_expiry_t *);
-- 
cgit v1.2.3


From 22117d6eaac50d366d9013c88318a869ea4d8739 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:47 +0100
Subject: ide: add ->dma_timer_expiry method and remove ->dma_exec_cmd one (v2)

* Rename dma_timer_expiry() to ide_dma_sff_timer_expiry() and export it.

* Add ->dma_timer_expiry method and use it to set hwif->expiry for
  ATA_PROT_DMA protocol in do_rw_taskfile().

* Initialize ->dma_timer_expiry to ide_dma_sff_timer_expiry() for SFF hosts.

* Move setting hwif->expiry from ide_execute_command() to its users and drop
  'expiry' argument.

* Use ide_execute_command() instead of ->dma_exec_cmd in do_rw_taskfile().

* Remove ->dma_exec_cmd method and its implementations.

* Unexport ide_execute_command() and ide_dma_intr().

v2:
* Fix CONFIG_BLK_DEV_IDEDMA=n build (noticed by Randy Dunlap).

* Fix *dma_expiry naming (suggested by Sergei Shtylyov).

There should be no functional changes caused by this patch.

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/alim15x3.c     |  2 +-
 drivers/ide/au1xxx-ide.c   |  8 --------
 drivers/ide/cmd64x.c       |  6 +++---
 drivers/ide/cs5536.c       |  2 +-
 drivers/ide/hpt366.c       |  6 +++---
 drivers/ide/icside.c       |  7 -------
 drivers/ide/ide-atapi.c    |  3 ++-
 drivers/ide/ide-dma-sff.c  | 15 ++++-----------
 drivers/ide/ide-dma.c      |  1 -
 drivers/ide/ide-iops.c     |  6 +-----
 drivers/ide/ide-taskfile.c |  6 ++++--
 drivers/ide/it821x.c       |  2 +-
 drivers/ide/ns87415.c      |  2 +-
 drivers/ide/pdc202xx_old.c |  4 ++--
 drivers/ide/pmac.c         |  8 --------
 drivers/ide/sc1200.c       |  2 +-
 drivers/ide/scc_pata.c     |  2 +-
 drivers/ide/siimage.c      |  2 +-
 drivers/ide/sl82c105.c     |  2 +-
 drivers/ide/tc86c001.c     |  2 +-
 drivers/ide/trm290.c       |  6 ------
 drivers/ide/tx4939ide.c    |  2 +-
 include/linux/ide.h        |  8 ++++----
 23 files changed, 33 insertions(+), 71 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
index e837fd9f196f..d516168464fc 100644
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -504,11 +504,11 @@ static const struct ide_port_ops ali_port_ops = {
 static const struct ide_dma_ops ali_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ali15x3_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= ide_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
index 58485d6cb026..d3a9d6c15328 100644
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -290,13 +290,6 @@ static void auide_dma_start(ide_drive_t *drive )
 }
 
 
-static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command)
-{
-	/* issue cmd to drive */
-	ide_execute_command(drive, command, &ide_dma_intr,
-			    (2*WAIT_CMD), NULL);
-}
-
 static int auide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	if (auide_build_dmatable(drive, cmd) == 0) {
@@ -356,7 +349,6 @@ static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize, u32 de
 static const struct ide_dma_ops au1xxx_dma_ops = {
 	.dma_host_set		= auide_dma_host_set,
 	.dma_setup		= auide_dma_setup,
-	.dma_exec_cmd		= auide_dma_exec_cmd,
 	.dma_start		= auide_dma_start,
 	.dma_end		= auide_dma_end,
 	.dma_test_irq		= auide_dma_test_irq,
diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c
index aeee036b1503..bf0e3f470824 100644
--- a/drivers/ide/cmd64x.c
+++ b/drivers/ide/cmd64x.c
@@ -379,11 +379,11 @@ static const struct ide_port_ops cmd64x_port_ops = {
 static const struct ide_dma_ops cmd64x_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= cmd64x_dma_end,
 	.dma_test_irq		= cmd64x_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
@@ -391,11 +391,11 @@ static const struct ide_dma_ops cmd64x_dma_ops = {
 static const struct ide_dma_ops cmd646_rev1_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= cmd646_1_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
@@ -403,11 +403,11 @@ static const struct ide_dma_ops cmd646_rev1_dma_ops = {
 static const struct ide_dma_ops cmd648_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= cmd648_dma_end,
 	.dma_test_irq		= cmd648_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
diff --git a/drivers/ide/cs5536.c b/drivers/ide/cs5536.c
index 7a62db719a46..d5dcf4899607 100644
--- a/drivers/ide/cs5536.c
+++ b/drivers/ide/cs5536.c
@@ -231,11 +231,11 @@ static const struct ide_port_ops cs5536_port_ops = {
 static const struct ide_dma_ops cs5536_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= cs5536_dma_start,
 	.dma_end		= cs5536_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 };
 
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index d3b3e824f445..dbaf184ed9c5 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -1418,11 +1418,11 @@ static const struct ide_port_ops hpt3xx_port_ops = {
 static const struct ide_dma_ops hpt37x_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= hpt374_dma_end,
 	.dma_test_irq		= hpt374_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
@@ -1430,11 +1430,11 @@ static const struct ide_dma_ops hpt37x_dma_ops = {
 static const struct ide_dma_ops hpt370_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= hpt370_dma_start,
 	.dma_end		= hpt370_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= hpt370_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
@@ -1442,11 +1442,11 @@ static const struct ide_dma_ops hpt370_dma_ops = {
 static const struct ide_dma_ops hpt36x_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= ide_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= hpt366_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c
index 3628b2147902..51ce404fe532 100644
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -351,12 +351,6 @@ static int icside_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 	return 0;
 }
 
-static void icside_dma_exec_cmd(ide_drive_t *drive, u8 cmd)
-{
-	/* issue cmd to drive */
-	ide_execute_command(drive, cmd, ide_dma_intr, 2 * WAIT_CMD, NULL);
-}
-
 static int icside_dma_test_irq(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
@@ -380,7 +374,6 @@ static int icside_dma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
 static const struct ide_dma_ops icside_v6_dma_ops = {
 	.dma_host_set		= icside_dma_host_set,
 	.dma_setup		= icside_dma_setup,
-	.dma_exec_cmd		= icside_dma_exec_cmd,
 	.dma_start		= icside_dma_start,
 	.dma_end		= icside_dma_end,
 	.dma_test_irq		= icside_dma_test_irq,
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index f1b1b71cb74c..f7fe1decb59d 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -691,8 +691,9 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd)
 	if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
 		if (drive->dma)
 			drive->waiting_for_dma = 0;
+		hwif->expiry = expiry;
 		ide_execute_command(drive, ATA_CMD_PACKET, ide_transfer_pc,
-				    timeout, expiry);
+				    timeout);
 		return ide_started;
 	} else {
 		ide_execute_pkt_cmd(drive);
diff --git a/drivers/ide/ide-dma-sff.c b/drivers/ide/ide-dma-sff.c
index b7eb810c7b8f..75a9ea2e4c82 100644
--- a/drivers/ide/ide-dma-sff.c
+++ b/drivers/ide/ide-dma-sff.c
@@ -224,7 +224,7 @@ int ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 EXPORT_SYMBOL_GPL(ide_dma_setup);
 
 /**
- *	dma_timer_expiry	-	handle a DMA timeout
+ *	ide_dma_sff_timer_expiry	-	handle a DMA timeout
  *	@drive: Drive that timed out
  *
  *	An IDE DMA transfer timed out. In the event of an error we ask
@@ -237,7 +237,7 @@ EXPORT_SYMBOL_GPL(ide_dma_setup);
  *	This can occur if an interrupt is lost or due to hang or bugs.
  */
 
-static int dma_timer_expiry(ide_drive_t *drive)
+int ide_dma_sff_timer_expiry(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
@@ -261,14 +261,7 @@ static int dma_timer_expiry(ide_drive_t *drive)
 
 	return 0;	/* Status is unknown -- reset the bus */
 }
-
-void ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
-{
-	/* issue cmd to drive */
-	ide_execute_command(drive, command, &ide_dma_intr, 2 * WAIT_CMD,
-			    dma_timer_expiry);
-}
-EXPORT_SYMBOL_GPL(ide_dma_exec_cmd);
+EXPORT_SYMBOL_GPL(ide_dma_sff_timer_expiry);
 
 void ide_dma_start(ide_drive_t *drive)
 {
@@ -342,10 +335,10 @@ EXPORT_SYMBOL_GPL(ide_dma_test_irq);
 const struct ide_dma_ops sff_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= ide_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_lost_irq		= ide_dma_lost_irq,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index ad4edab9b0a9..3dbf80c15491 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -110,7 +110,6 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive)
 	}
 	return ide_error(drive, "dma_intr", stat);
 }
-EXPORT_SYMBOL_GPL(ide_dma_intr);
 
 int ide_dma_good_drive(ide_drive_t *drive)
 {
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 916495ba45df..52c1258ba9f4 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -454,7 +454,6 @@ EXPORT_SYMBOL(ide_set_handler);
  *	@command: command byte to write
  *	@handler: handler for next phase
  *	@timeout: timeout for command
- *	@expiry:  handler to run on timeout
  *
  *	Helper function to issue an IDE command. This handles the
  *	atomicity requirements, command timing and ensures that the
@@ -463,13 +462,11 @@ EXPORT_SYMBOL(ide_set_handler);
  */
 
 void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
-			 unsigned timeout, ide_expiry_t *expiry)
+			 unsigned timeout)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	unsigned long flags;
 
-	hwif->expiry = expiry;
-
 	spin_lock_irqsave(&hwif->lock, flags);
 	__ide_set_handler(drive, handler, timeout);
 	hwif->tp_ops->exec_command(hwif, cmd);
@@ -482,7 +479,6 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
 	ndelay(400);
 	spin_unlock_irqrestore(&hwif->lock, flags);
 }
-EXPORT_SYMBOL(ide_execute_command);
 
 void ide_execute_pkt_cmd(ide_drive_t *drive)
 {
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 286804142e4d..f5cf04cf5712 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -98,14 +98,16 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 		if (handler == NULL)
 			handler = task_no_data_intr;
 		ide_execute_command(drive, tf->command, handler,
-				    WAIT_WORSTCASE, NULL);
+				    WAIT_WORSTCASE);
 		return ide_started;
 	case ATA_PROT_DMA:
 		if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0 ||
 		    ide_build_sglist(drive, cmd) == 0 ||
 		    dma_ops->dma_setup(drive, cmd))
 			return ide_stopped;
-		dma_ops->dma_exec_cmd(drive, tf->command);
+		hwif->expiry = dma_ops->dma_timer_expiry;
+		ide_execute_command(drive, tf->command, ide_dma_intr,
+				    2 * WAIT_CMD);
 		dma_ops->dma_start(drive);
 	default:
 		return ide_started;
diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
index 6b9fc950b4af..0d4ac65cf949 100644
--- a/drivers/ide/it821x.c
+++ b/drivers/ide/it821x.c
@@ -508,10 +508,10 @@ static void it821x_quirkproc(ide_drive_t *drive)
 static struct ide_dma_ops it821x_pass_through_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= it821x_dma_start,
 	.dma_end		= it821x_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_lost_irq		= ide_dma_lost_irq,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
index cf6d9a9c8a27..7b65fe5bf449 100644
--- a/drivers/ide/ns87415.c
+++ b/drivers/ide/ns87415.c
@@ -301,11 +301,11 @@ static const struct ide_port_ops ns87415_port_ops = {
 static const struct ide_dma_ops ns87415_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ns87415_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= ns87415_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= superio_dma_sff_read_status,
 };
diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c
index cba66ebce4e3..f7536d1943f7 100644
--- a/drivers/ide/pdc202xx_old.c
+++ b/drivers/ide/pdc202xx_old.c
@@ -331,11 +331,11 @@ static const struct ide_port_ops pdc2026x_port_ops = {
 static const struct ide_dma_ops pdc20246_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= ide_dma_end,
 	.dma_test_irq		= pdc202xx_dma_test_irq,
 	.dma_lost_irq		= pdc202xx_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= pdc202xx_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
@@ -343,11 +343,11 @@ static const struct ide_dma_ops pdc20246_dma_ops = {
 static const struct ide_dma_ops pdc2026x_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= pdc202xx_dma_start,
 	.dma_end		= pdc202xx_dma_end,
 	.dma_test_irq		= pdc202xx_dma_test_irq,
 	.dma_lost_irq		= pdc202xx_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= pdc202xx_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index 337d2d5b3028..2bfcfedaa076 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -1527,13 +1527,6 @@ static int pmac_ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 	return 0;
 }
 
-static void
-pmac_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
-{
-	/* issue cmd to drive */
-	ide_execute_command(drive, command, &ide_dma_intr, 2*WAIT_CMD, NULL);
-}
-
 /*
  * Kick the DMA controller into life after the DMA command has been issued
  * to the drive.
@@ -1654,7 +1647,6 @@ pmac_ide_dma_lost_irq (ide_drive_t *drive)
 static const struct ide_dma_ops pmac_dma_ops = {
 	.dma_host_set		= pmac_ide_dma_host_set,
 	.dma_setup		= pmac_ide_dma_setup,
-	.dma_exec_cmd		= pmac_ide_dma_exec_cmd,
 	.dma_start		= pmac_ide_dma_start,
 	.dma_end		= pmac_ide_dma_end,
 	.dma_test_irq		= pmac_ide_dma_test_irq,
diff --git a/drivers/ide/sc1200.c b/drivers/ide/sc1200.c
index dbdd2985a0d8..1c3a82914999 100644
--- a/drivers/ide/sc1200.c
+++ b/drivers/ide/sc1200.c
@@ -286,11 +286,11 @@ static const struct ide_port_ops sc1200_port_ops = {
 static const struct ide_dma_ops sc1200_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= sc1200_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index 1f2805ce9889..0cc137cfe76d 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -868,12 +868,12 @@ static const struct ide_port_ops scc_port_ops = {
 static const struct ide_dma_ops scc_dma_ops = {
 	.dma_host_set		= scc_dma_host_set,
 	.dma_setup		= scc_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= scc_dma_start,
 	.dma_end		= scc_dma_end,
 	.dma_test_irq		= scc_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
 	.dma_timeout		= ide_dma_timeout,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_sff_read_status	= scc_dma_sff_read_status,
 };
 
diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c
index 1811ae9cd843..075cb1243b2a 100644
--- a/drivers/ide/siimage.c
+++ b/drivers/ide/siimage.c
@@ -711,10 +711,10 @@ static const struct ide_port_ops sil_sata_port_ops = {
 static const struct ide_dma_ops sil_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= ide_dma_end,
 	.dma_test_irq		= siimage_dma_test_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_lost_irq		= ide_dma_lost_irq,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c
index dba213c51baa..d25137b04e7a 100644
--- a/drivers/ide/sl82c105.c
+++ b/drivers/ide/sl82c105.c
@@ -293,11 +293,11 @@ static const struct ide_port_ops sl82c105_port_ops = {
 static const struct ide_dma_ops sl82c105_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= sl82c105_dma_start,
 	.dma_end		= sl82c105_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= sl82c105_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= sl82c105_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
diff --git a/drivers/ide/tc86c001.c b/drivers/ide/tc86c001.c
index 84109f5a1632..427d4b3c2c63 100644
--- a/drivers/ide/tc86c001.c
+++ b/drivers/ide/tc86c001.c
@@ -182,11 +182,11 @@ static const struct ide_port_ops tc86c001_port_ops = {
 static const struct ide_dma_ops tc86c001_dma_ops = {
 	.dma_host_set		= ide_dma_host_set,
 	.dma_setup		= ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= tc86c001_dma_start,
 	.dma_end		= ide_dma_end,
 	.dma_test_irq		= ide_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c
index 746858a7338d..ed1496845a93 100644
--- a/drivers/ide/trm290.c
+++ b/drivers/ide/trm290.c
@@ -176,11 +176,6 @@ static void trm290_selectproc (ide_drive_t *drive)
 	trm290_prepare_drive(drive, !!(drive->dev_flags & IDE_DFLAG_USING_DMA));
 }
 
-static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
-{
-	ide_execute_command(drive, command, &ide_dma_intr, WAIT_CMD, NULL);
-}
-
 static int trm290_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
@@ -315,7 +310,6 @@ static const struct ide_port_ops trm290_port_ops = {
 static struct ide_dma_ops trm290_dma_ops = {
 	.dma_host_set		= trm290_dma_host_set,
 	.dma_setup 		= trm290_dma_setup,
-	.dma_exec_cmd		= trm290_dma_exec_cmd,
 	.dma_start 		= trm290_dma_start,
 	.dma_end		= trm290_dma_end,
 	.dma_test_irq		= trm290_dma_test_irq,
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 39e3316ab63f..e0e0a803dde3 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -627,11 +627,11 @@ static const struct ide_port_ops tx4939ide_port_ops = {
 static const struct ide_dma_ops tx4939ide_dma_ops = {
 	.dma_host_set		= tx4939ide_dma_host_set,
 	.dma_setup		= tx4939ide_dma_setup,
-	.dma_exec_cmd		= ide_dma_exec_cmd,
 	.dma_start		= ide_dma_start,
 	.dma_end		= tx4939ide_dma_end,
 	.dma_test_irq		= tx4939ide_dma_test_irq,
 	.dma_lost_irq		= ide_dma_lost_irq,
+	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
 	.dma_timeout		= ide_dma_timeout,
 	.dma_sff_read_status	= tx4939ide_dma_sff_read_status,
 };
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 476f59885fda..9476939101be 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -715,11 +715,11 @@ struct ide_port_ops {
 struct ide_dma_ops {
 	void	(*dma_host_set)(struct ide_drive_s *, int);
 	int	(*dma_setup)(struct ide_drive_s *, struct ide_cmd *);
-	void	(*dma_exec_cmd)(struct ide_drive_s *, u8);
 	void	(*dma_start)(struct ide_drive_s *);
 	int	(*dma_end)(struct ide_drive_s *);
 	int	(*dma_test_irq)(struct ide_drive_s *);
 	void	(*dma_lost_irq)(struct ide_drive_s *);
+	int	(*dma_timer_expiry)(struct ide_drive_s *);
 	void	(*dma_timeout)(struct ide_drive_s *);
 	/*
 	 * The following method is optional and only required to be
@@ -1138,8 +1138,7 @@ void ide_kill_rq(ide_drive_t *, struct request *);
 void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
 void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
 
-void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int,
-			 ide_expiry_t *);
+void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int);
 
 void ide_execute_pkt_cmd(ide_drive_t *);
 
@@ -1453,10 +1452,10 @@ int config_drive_for_dma(ide_drive_t *);
 int ide_build_dmatable(ide_drive_t *, struct ide_cmd *);
 void ide_dma_host_set(ide_drive_t *, int);
 int ide_dma_setup(ide_drive_t *, struct ide_cmd *);
-void ide_dma_exec_cmd(ide_drive_t *, u8);
 extern void ide_dma_start(ide_drive_t *);
 int ide_dma_end(ide_drive_t *);
 int ide_dma_test_irq(ide_drive_t *);
+int ide_dma_sff_timer_expiry(ide_drive_t *);
 u8 ide_dma_sff_read_status(ide_hwif_t *);
 extern const struct ide_dma_ops sff_dma_ops;
 #else
@@ -1477,6 +1476,7 @@ static inline void ide_dma_on(ide_drive_t *drive) { ; }
 static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
 static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
 static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
+static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; }
 static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
 static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
 static inline int ide_build_sglist(ide_drive_t *drive,
-- 
cgit v1.2.3


From 35b5d0be3d8de9a5ac51471c12029fb115200cdc Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:47 +0100
Subject: ide: remove ide_execute_pkt_cmd() (v2)

* Pass command structure to ide_execute_command() and skip
  __ide_set_handler() for ATAPI protocols on non-DRQ devices.

* Convert ide_issue_pc() to always use ide_execute_command()
  and remove no longer needed ide_execute_pkt_cmd().

v2:
* Fix for non-DRQ devices (based on report from Borislav).

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-atapi.c    | 15 +++++++--------
 drivers/ide/ide-iops.c     | 25 ++++++++-----------------
 drivers/ide/ide-taskfile.c |  6 ++----
 include/linux/ide.h        |  5 ++---
 4 files changed, 19 insertions(+), 32 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index f7fe1decb59d..2fb5d28a9be5 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -493,6 +493,7 @@ static void ide_init_packet_cmd(struct ide_cmd *cmd, u32 tf_flags,
 	cmd->protocol  = dma ? ATAPI_PROT_DMA : ATAPI_PROT_PIO;
 	cmd->tf_flags |= IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
 			 IDE_TFLAG_OUT_FEATURE | tf_flags;
+	cmd->tf.command = ATA_CMD_PACKET;
 	cmd->tf.feature = dma;		/* Use PIO/DMA */
 	cmd->tf.lbam    = bcount & 0xff;
 	cmd->tf.lbah    = (bcount >> 8) & 0xff;
@@ -638,6 +639,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd)
 	unsigned int timeout;
 	u32 tf_flags;
 	u16 bcount;
+	u8 drq_int = !!(drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT);
 
 	if (dev_is_idecd(drive)) {
 		tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
@@ -687,17 +689,14 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd)
 
 	(void)do_rw_taskfile(drive, cmd);
 
-	/* Issue the packet command */
-	if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
+	if (drq_int) {
 		if (drive->dma)
 			drive->waiting_for_dma = 0;
 		hwif->expiry = expiry;
-		ide_execute_command(drive, ATA_CMD_PACKET, ide_transfer_pc,
-				    timeout);
-		return ide_started;
-	} else {
-		ide_execute_pkt_cmd(drive);
-		return ide_transfer_pc(drive);
 	}
+
+	ide_execute_command(drive, cmd, ide_transfer_pc, timeout);
+
+	return drq_int ? ide_started : ide_transfer_pc(drive);
 }
 EXPORT_SYMBOL_GPL(ide_issue_pc);
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 52c1258ba9f4..5403e4a44be4 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -451,7 +451,7 @@ EXPORT_SYMBOL(ide_set_handler);
 /**
  *	ide_execute_command	-	execute an IDE command
  *	@drive: IDE drive to issue the command against
- *	@command: command byte to write
+ *	@cmd: command
  *	@handler: handler for next phase
  *	@timeout: timeout for command
  *
@@ -461,15 +461,18 @@ EXPORT_SYMBOL(ide_set_handler);
  *	should go via this function or do equivalent locking.
  */
 
-void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
-			 unsigned timeout)
+void ide_execute_command(ide_drive_t *drive, struct ide_cmd *cmd,
+			 ide_handler_t *handler, unsigned timeout)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hwif->lock, flags);
-	__ide_set_handler(drive, handler, timeout);
-	hwif->tp_ops->exec_command(hwif, cmd);
+	if ((cmd->protocol != ATAPI_PROT_DMA &&
+	     cmd->protocol != ATAPI_PROT_PIO) ||
+	    (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT))
+		__ide_set_handler(drive, handler, timeout);
+	hwif->tp_ops->exec_command(hwif, cmd->tf.command);
 	/*
 	 * Drive takes 400nS to respond, we must avoid the IRQ being
 	 * serviced before that.
@@ -480,18 +483,6 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
 	spin_unlock_irqrestore(&hwif->lock, flags);
 }
 
-void ide_execute_pkt_cmd(ide_drive_t *drive)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	unsigned long flags;
-
-	spin_lock_irqsave(&hwif->lock, flags);
-	hwif->tp_ops->exec_command(hwif, ATA_CMD_PACKET);
-	ndelay(400);
-	spin_unlock_irqrestore(&hwif->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
-
 /*
  * ide_wait_not_busy() waits for the currently selected device on the hwif
  * to report a non-busy status, see comments in ide_probe_port().
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index f5cf04cf5712..329fd6f13f79 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -97,8 +97,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 	case ATA_PROT_NODATA:
 		if (handler == NULL)
 			handler = task_no_data_intr;
-		ide_execute_command(drive, tf->command, handler,
-				    WAIT_WORSTCASE);
+		ide_execute_command(drive, cmd, handler, WAIT_WORSTCASE);
 		return ide_started;
 	case ATA_PROT_DMA:
 		if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0 ||
@@ -106,8 +105,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
 		    dma_ops->dma_setup(drive, cmd))
 			return ide_stopped;
 		hwif->expiry = dma_ops->dma_timer_expiry;
-		ide_execute_command(drive, tf->command, ide_dma_intr,
-				    2 * WAIT_CMD);
+		ide_execute_command(drive, cmd, ide_dma_intr, 2 * WAIT_CMD);
 		dma_ops->dma_start(drive);
 	default:
 		return ide_started;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 9476939101be..2d0c7afd5e58 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1138,9 +1138,8 @@ void ide_kill_rq(ide_drive_t *, struct request *);
 void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
 void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
 
-void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int);
-
-void ide_execute_pkt_cmd(ide_drive_t *);
+void ide_execute_command(ide_drive_t *, struct ide_cmd *, ide_handler_t *,
+			 unsigned int);
 
 void ide_pad_transfer(ide_drive_t *, int, int);
 
-- 
cgit v1.2.3


From bf717c0a2e18dbe82eeb28e57b0abede3cdf45d6 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 27 Mar 2009 12:46:47 +0100
Subject: ide: keep track of number of bytes instead of sectors in struct
 ide_cmd

* Pass number of bytes instead of sectors to ide_init_sg_cmd().

* Pass number of bytes to process to ide_pio_sector() and rename
  it to ide_pio_bytes().

* Rename ->nsect field to ->nbytes in struct ide_cmd and use
  ->nbytes, ->nleft and ->cursg_ofs to keep track of number of
  bytes instead of sectors.

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-disk.c     |  4 ++--
 drivers/ide/ide-floppy.c   |  2 +-
 drivers/ide/ide-io.c       |  6 +++---
 drivers/ide/ide-taskfile.c | 32 ++++++++++++++++----------------
 include/linux/ide.h        |  4 ++--
 5 files changed, 24 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 4b32c4eb7b82..ca934c8a1289 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -152,7 +152,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 	cmd.rq = rq;
 
 	if (dma == 0) {
-		ide_init_sg_cmd(&cmd, nsectors);
+		ide_init_sg_cmd(&cmd, nsectors << 9);
 		ide_map_sg(drive, &cmd);
 	}
 
@@ -162,7 +162,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
 		/* fallback to PIO */
 		cmd.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK;
 		ide_tf_set_cmd(drive, &cmd, 0);
-		ide_init_sg_cmd(&cmd, nsectors);
+		ide_init_sg_cmd(&cmd, nsectors << 9);
 		rc = do_rw_taskfile(drive, &cmd);
 	}
 
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index f3ed5de3141b..7ae662334835 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -294,7 +294,7 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
 	cmd.rq = rq;
 
 	if (blk_fs_request(rq) || pc->req_xfer) {
-		ide_init_sg_cmd(&cmd, rq->nr_sectors);
+		ide_init_sg_cmd(&cmd, rq->nr_sectors << 9);
 		ide_map_sg(drive, &cmd);
 	}
 
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index b4901b690c9a..1adc5e2e7fb3 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -245,9 +245,9 @@ void ide_map_sg(ide_drive_t *drive, struct ide_cmd *cmd)
 }
 EXPORT_SYMBOL_GPL(ide_map_sg);
 
-void ide_init_sg_cmd(struct ide_cmd *cmd, int nsect)
+void ide_init_sg_cmd(struct ide_cmd *cmd, unsigned int nr_bytes)
 {
-	cmd->nsect = cmd->nleft = nsect;
+	cmd->nbytes = cmd->nleft = nr_bytes;
 	cmd->cursg_ofs = 0;
 	cmd->cursg = NULL;
 }
@@ -272,7 +272,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 
 	if (cmd) {
 		if (cmd->protocol == ATA_PROT_PIO) {
-			ide_init_sg_cmd(cmd, rq->nr_sectors);
+			ide_init_sg_cmd(cmd, rq->nr_sectors << 9);
 			ide_map_sg(drive, cmd);
 		}
 
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 329fd6f13f79..84532be97c00 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -188,8 +188,8 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
 	return stat;
 }
 
-static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
-			   unsigned int write)
+static void ide_pio_bytes(ide_drive_t *drive, struct ide_cmd *cmd,
+			  unsigned int write, unsigned int nr_bytes)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct scatterlist *sg = hwif->sg_table;
@@ -208,7 +208,7 @@ static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
 	}
 
 	page = sg_page(cursg);
-	offset = cursg->offset + cmd->cursg_ofs * SECTOR_SIZE;
+	offset = cursg->offset + cmd->cursg_ofs;
 
 	/* get the current page and offset */
 	page = nth_page(page, (offset >> PAGE_SHIFT));
@@ -219,19 +219,19 @@ static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
 #endif
 	buf = kmap_atomic(page, KM_BIO_SRC_IRQ) + offset;
 
-	cmd->nleft--;
-	cmd->cursg_ofs++;
+	cmd->nleft -= nr_bytes;
+	cmd->cursg_ofs += nr_bytes;
 
-	if ((cmd->cursg_ofs * SECTOR_SIZE) == cursg->length) {
+	if (cmd->cursg_ofs == cursg->length) {
 		cmd->cursg = sg_next(cmd->cursg);
 		cmd->cursg_ofs = 0;
 	}
 
 	/* do the actual data transfer */
 	if (write)
-		hwif->tp_ops->output_data(drive, cmd, buf, SECTOR_SIZE);
+		hwif->tp_ops->output_data(drive, cmd, buf, nr_bytes);
 	else
-		hwif->tp_ops->input_data(drive, cmd, buf, SECTOR_SIZE);
+		hwif->tp_ops->input_data(drive, cmd, buf, nr_bytes);
 
 	kunmap_atomic(buf, KM_BIO_SRC_IRQ);
 #ifdef CONFIG_HIGHMEM
@@ -244,9 +244,9 @@ static void ide_pio_multi(ide_drive_t *drive, struct ide_cmd *cmd,
 {
 	unsigned int nsect;
 
-	nsect = min_t(unsigned int, cmd->nleft, drive->mult_count);
+	nsect = min_t(unsigned int, cmd->nleft >> 9, drive->mult_count);
 	while (nsect--)
-		ide_pio_sector(drive, cmd, write);
+		ide_pio_bytes(drive, cmd, write, SECTOR_SIZE);
 }
 
 static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd,
@@ -265,7 +265,7 @@ static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd,
 	if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO)
 		ide_pio_multi(drive, cmd, write);
 	else
-		ide_pio_sector(drive, cmd, write);
+		ide_pio_bytes(drive, cmd, write, SECTOR_SIZE);
 
 	drive->io_32bit = saved_io_32bit;
 }
@@ -273,18 +273,18 @@ static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd,
 static void ide_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	if (cmd->tf_flags & IDE_TFLAG_FS) {
-		int sectors = cmd->nsect - cmd->nleft;
+		int nr_bytes = cmd->nbytes - cmd->nleft;
 
 		if (cmd->protocol == ATA_PROT_PIO &&
 		    ((cmd->tf_flags & IDE_TFLAG_WRITE) || cmd->nleft == 0)) {
 			if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO)
-				sectors -= drive->mult_count;
+				nr_bytes -= drive->mult_count << 9;
 			else
-				sectors--;
+				nr_bytes -= SECTOR_SIZE;
 		}
 
-		if (sectors > 0)
-			ide_complete_rq(drive, 0, sectors << 9);
+		if (nr_bytes > 0)
+			ide_complete_rq(drive, 0, nr_bytes);
 	}
 }
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 2d0c7afd5e58..d5d832271f44 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -350,7 +350,7 @@ struct ide_cmd {
 	int			orig_sg_nents;
 	int			sg_dma_direction; /* DMA transfer direction */
 
-	unsigned int		nsect;
+	unsigned int		nbytes;
 	unsigned int		nleft;
 	struct scatterlist	*cursg;
 	unsigned int		cursg_ofs;
@@ -1409,7 +1409,7 @@ int ide_pci_resume(struct pci_dev *);
 #endif
 
 void ide_map_sg(ide_drive_t *, struct ide_cmd *);
-void ide_init_sg_cmd(struct ide_cmd *, int);
+void ide_init_sg_cmd(struct ide_cmd *, unsigned int);
 
 #define BAD_DMA_DRIVE		0
 #define GOOD_DMA_DRIVE		1
-- 
cgit v1.2.3


From 05fd8e73e1357feaea9c48938d937eae76b4aef4 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Sat, 7 Mar 2009 12:55:49 +0100
Subject: clkdev: add possibility to get a clock based on the device name

This adds clk_get_sys to get a clock without the associated struct
device.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/common/clkdev.c | 11 +++++++++--
 include/linux/clk.h      | 17 +++++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/arch/arm/common/clkdev.c b/arch/arm/common/clkdev.c
index 1037bba18329..5589444ff437 100644
--- a/arch/arm/common/clkdev.c
+++ b/arch/arm/common/clkdev.c
@@ -62,9 +62,8 @@ static struct clk *clk_find(const char *dev_id, const char *con_id)
 	return clk;
 }
 
-struct clk *clk_get(struct device *dev, const char *con_id)
+struct clk *clk_get_sys(const char *dev_id, const char *con_id)
 {
-	const char *dev_id = dev ? dev_name(dev) : NULL;
 	struct clk *clk;
 
 	mutex_lock(&clocks_mutex);
@@ -75,6 +74,14 @@ struct clk *clk_get(struct device *dev, const char *con_id)
 
 	return clk ? clk : ERR_PTR(-ENOENT);
 }
+EXPORT_SYMBOL(clk_get_sys);
+
+struct clk *clk_get(struct device *dev, const char *con_id)
+{
+	const char *dev_id = dev ? dev_name(dev) : NULL;
+
+	return clk_get_sys(dev_id, con_id);
+}
 EXPORT_SYMBOL(clk_get);
 
 void clk_put(struct clk *clk)
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 778777316ea4..1db9bbf444a3 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -125,4 +125,21 @@ int clk_set_parent(struct clk *clk, struct clk *parent);
  */
 struct clk *clk_get_parent(struct clk *clk);
 
+/**
+ * clk_get_sys - get a clock based upon the device name
+ * @dev_id: device name
+ * @con_id: connection ID
+ *
+ * Returns a struct clk corresponding to the clock producer, or
+ * valid IS_ERR() condition containing errno.  The implementation
+ * uses @dev_id and @con_id to determine the clock consumer, and
+ * thereby the clock producer. In contrast to clk_get() this function
+ * takes the device name instead of the device itself for identification.
+ *
+ * Drivers must assume that the clock source is not enabled.
+ *
+ * clk_get_sys should not be called from within interrupt context.
+ */
+struct clk *clk_get_sys(const char *dev_id, const char *con_id);
+
 #endif
-- 
cgit v1.2.3


From 2b1c6bd77d4e6a727ffac8630cd154b2144b751a Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 28 Nov 2008 10:09:09 +0100
Subject: generic compat_sys_ustat

Due to a different size of ino_t ustat needs a compat handler, but
currently only x86 and mips provide one.  Add a generic compat_sys_ustat
and switch all architectures over to it.  Instead of doing various
user copy hacks compat_sys_ustat just reimplements sys_ustat as
it's trivial.  This was suggested by Arnd Bergmann.

Found by Eric Sandeen when running xfstests/017 on ppc64, which causes
stack smashing warnings on RHEL/Fedora due to the too large amount of
data writen by the syscall.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/ia64/ia32/ia32_entry.S        |  2 +-
 arch/mips/kernel/linux32.c         | 34 ----------------------------------
 arch/mips/kernel/scall64-n32.S     |  2 +-
 arch/mips/kernel/scall64-o32.S     |  2 +-
 arch/parisc/kernel/syscall_table.S |  2 +-
 arch/powerpc/include/asm/systbl.h  |  2 +-
 arch/s390/kernel/compat_wrapper.S  |  2 +-
 arch/x86/ia32/ia32entry.S          |  2 +-
 arch/x86/ia32/sys_ia32.c           | 22 ----------------------
 arch/x86/include/asm/ia32.h        |  7 -------
 arch/x86/include/asm/sys_ia32.h    |  2 --
 fs/compat.c                        | 28 ++++++++++++++++++++++++++++
 include/linux/compat.h             |  8 ++++++++
 13 files changed, 43 insertions(+), 72 deletions(-)

(limited to 'include')

diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
index a46f8395e9a5..af9405cd70e5 100644
--- a/arch/ia64/ia32/ia32_entry.S
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -240,7 +240,7 @@ ia32_syscall_table:
 	data8 sys_ni_syscall
 	data8 sys_umask		  /* 60 */
 	data8 sys_chroot
-	data8 sys_ustat
+	data8 compat_sys_ustat
 	data8 sys_dup2
 	data8 sys_getppid
 	data8 sys_getpgrp	  /* 65 */
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 1a86f84fa947..784859cedef7 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -356,40 +356,6 @@ SYSCALL_DEFINE1(32_personality, unsigned long, personality)
 	return ret;
 }
 
-/* ustat compatibility */
-struct ustat32 {
-	compat_daddr_t	f_tfree;
-	compat_ino_t	f_tinode;
-	char		f_fname[6];
-	char		f_fpack[6];
-};
-
-extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
-
-SYSCALL_DEFINE2(32_ustat, dev_t, dev, struct ustat32 __user *, ubuf32)
-{
-	int err;
-	struct ustat tmp;
-	struct ustat32 tmp32;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-	err = sys_ustat(dev, (struct ustat __user *)&tmp);
-	set_fs(old_fs);
-
-	if (err)
-		goto out;
-
-	memset(&tmp32, 0, sizeof(struct ustat32));
-	tmp32.f_tfree = tmp.f_tfree;
-	tmp32.f_tinode = tmp.f_tinode;
-
-	err = copy_to_user(ubuf32, &tmp32, sizeof(struct ustat32)) ? -EFAULT : 0;
-
-out:
-	return err;
-}
-
 SYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd,
 	compat_off_t __user *, offset, s32, count)
 {
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 7438e92f8a01..f61d6b0e5731 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -253,7 +253,7 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_utime		/* 6130 */
 	PTR	sys_mknod
 	PTR	sys_32_personality
-	PTR	sys_32_ustat
+	PTR	compat_sys_ustat
 	PTR	compat_sys_statfs
 	PTR	compat_sys_fstatfs		/* 6135 */
 	PTR	sys_sysfs
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index b0fef4ff9827..60997f1f69d4 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -265,7 +265,7 @@ sys_call_table:
 	PTR	sys_olduname
 	PTR	sys_umask			/* 4060 */
 	PTR	sys_chroot
-	PTR	sys_32_ustat
+	PTR	compat_sys_ustat
 	PTR	sys_dup2
 	PTR	sys_getppid
 	PTR	sys_getpgrp			/* 4065 */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 303d2b647e41..03b9a01bc16c 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -130,7 +130,7 @@
 	ENTRY_OURS(newuname)
 	ENTRY_SAME(umask)		/* 60 */
 	ENTRY_SAME(chroot)
-	ENTRY_SAME(ustat)
+	ENTRY_COMP(ustat)
 	ENTRY_SAME(dup2)
 	ENTRY_SAME(getppid)
 	ENTRY_SAME(getpgrp)		/* 65 */
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 72353f6070a4..fe166491e9dc 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -65,7 +65,7 @@ SYSCALL(ni_syscall)
 SYSX(sys_ni_syscall,sys_olduname, sys_olduname)
 COMPAT_SYS_SPU(umask)
 SYSCALL_SPU(chroot)
-SYSCALL(ustat)
+COMPAT_SYS(ustat)
 SYSCALL_SPU(dup2)
 SYSCALL_SPU(getppid)
 SYSCALL_SPU(getpgrp)
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 62c706eb0de6..87cf5a79a351 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -252,7 +252,7 @@ sys32_chroot_wrapper:
 sys32_ustat_wrapper:
 	llgfr	%r2,%r2			# dev_t
 	llgtr	%r3,%r3			# struct ustat *
-	jg	sys_ustat
+	jg	compat_sys_ustat
 
 	.globl	sys32_dup2_wrapper
 sys32_dup2_wrapper:
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 5a0d76dc56a4..8ef8876666b2 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -557,7 +557,7 @@ ia32_sys_call_table:
 	.quad sys32_olduname
 	.quad sys_umask		/* 60 */
 	.quad sys_chroot
-	.quad sys32_ustat
+	.quad compat_sys_ustat
 	.quad sys_dup2
 	.quad sys_getppid
 	.quad sys_getpgrp		/* 65 */
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 6c0d7f6231af..efac92fd1efb 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -638,28 +638,6 @@ long sys32_uname(struct old_utsname __user *name)
 	return err ? -EFAULT : 0;
 }
 
-long sys32_ustat(unsigned dev, struct ustat32 __user *u32p)
-{
-	struct ustat u;
-	mm_segment_t seg;
-	int ret;
-
-	seg = get_fs();
-	set_fs(KERNEL_DS);
-	ret = sys_ustat(dev, (struct ustat __user *)&u);
-	set_fs(seg);
-	if (ret < 0)
-		return ret;
-
-	if (!access_ok(VERIFY_WRITE, u32p, sizeof(struct ustat32)) ||
-	    __put_user((__u32) u.f_tfree, &u32p->f_tfree) ||
-	    __put_user((__u32) u.f_tinode, &u32p->f_tfree) ||
-	    __copy_to_user(&u32p->f_fname, u.f_fname, sizeof(u.f_fname)) ||
-	    __copy_to_user(&u32p->f_fpack, u.f_fpack, sizeof(u.f_fpack)))
-		ret = -EFAULT;
-	return ret;
-}
-
 asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
 			     compat_uptr_t __user *envp, struct pt_regs *regs)
 {
diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h
index 50ca486fd88c..1f7e62517284 100644
--- a/arch/x86/include/asm/ia32.h
+++ b/arch/x86/include/asm/ia32.h
@@ -129,13 +129,6 @@ typedef struct compat_siginfo {
 	} _sifields;
 } compat_siginfo_t;
 
-struct ustat32 {
-	__u32			f_tfree;
-	compat_ino_t		f_tinode;
-	char			f_fname[6];
-	char			f_fpack[6];
-};
-
 #define IA32_STACK_TOP IA32_PAGE_OFFSET
 
 #ifdef __KERNEL__
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index ffb08be2a530..72a6dcd1299b 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -70,8 +70,6 @@ struct old_utsname;
 asmlinkage long sys32_olduname(struct oldold_utsname __user *);
 long sys32_uname(struct old_utsname __user *);
 
-long sys32_ustat(unsigned, struct ustat32 __user *);
-
 asmlinkage long sys32_execve(char __user *, compat_uptr_t __user *,
 			     compat_uptr_t __user *, struct pt_regs *);
 asmlinkage long sys32_clone(unsigned int, unsigned int, struct pt_regs *);
diff --git a/fs/compat.c b/fs/compat.c
index d0145ca27572..4e0db94b5353 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -378,6 +378,34 @@ out:
 	return error;
 }
 
+/*
+ * This is a copy of sys_ustat, just dealing with a structure layout.
+ * Given how simple this syscall is that apporach is more maintainable
+ * than the various conversion hacks.
+ */
+asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u)
+{
+	struct super_block *sb;
+	struct compat_ustat tmp;
+	struct kstatfs sbuf;
+	int err;
+
+	sb = user_get_super(new_decode_dev(dev));
+	if (!sb)
+		return -EINVAL;
+	err = vfs_statfs(sb->s_root, &sbuf);
+	drop_super(sb);
+	if (err)
+		return err;
+
+	memset(&tmp, 0, sizeof(struct compat_ustat));
+	tmp.f_tfree = sbuf.f_bfree;
+	tmp.f_tinode = sbuf.f_ffree;
+	if (copy_to_user(u, &tmp, sizeof(struct compat_ustat)))
+		return -EFAULT;
+	return 0;
+}
+
 static int get_compat_flock(struct flock *kfl, struct compat_flock __user *ufl)
 {
 	if (!access_ok(VERIFY_READ, ufl, sizeof(*ufl)) ||
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 3fd2194ff573..b880864672de 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -125,6 +125,13 @@ struct compat_dirent {
 	char		d_name[256];
 };
 
+struct compat_ustat {
+	compat_daddr_t		f_tfree;
+	compat_ino_t		f_tinode;
+	char			f_fname[6];
+	char			f_fpack[6];
+};
+
 typedef union compat_sigval {
 	compat_int_t	sival_int;
 	compat_uptr_t	sival_ptr;
@@ -178,6 +185,7 @@ long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
 		unsigned nsems, const struct compat_timespec __user *timeout);
 asmlinkage long compat_sys_keyctl(u32 option,
 			      u32 arg2, u32 arg3, u32 arg4, u32 arg5);
+asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
 
 asmlinkage ssize_t compat_sys_readv(unsigned long fd,
 		const struct compat_iovec __user *vec, unsigned long vlen);
-- 
cgit v1.2.3


From 10f303ae1e5e77a9f7cb053e6329906afb132c67 Mon Sep 17 00:00:00 2001
From: Cheng Renquan <crquan@gmail.com>
Date: Wed, 14 Jan 2009 17:01:33 +0800
Subject: do_pipe cleanup: drop its last user in arch/alpha/

The last user of do_pipe is in arch/alpha/, after replacing it with
do_pipe_flags, the do_pipe can be totally dropped.

Signed-off-by: Cheng Renquan <crquan@gmail.com>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/alpha/kernel/entry.S   | 3 ++-
 arch/alpha/kernel/osf_sys.c | 2 --
 fs/pipe.c                   | 5 -----
 include/linux/fs.h          | 1 -
 4 files changed, 2 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index e4a54b615894..b45d913a51c3 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -903,8 +903,9 @@ sys_alpha_pipe:
 	stq	$26, 0($sp)
 	.prologue 0
 
+	mov	$31, $17
 	lda	$16, 8($sp)
-	jsr	$26, do_pipe
+	jsr	$26, do_pipe_flags
 
 	ldq	$26, 0($sp)
 	bne	$0, 1f
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index ae41f097864b..42ee05981e71 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -46,8 +46,6 @@
 #include <asm/hwrpb.h>
 #include <asm/processor.h>
 
-extern int do_pipe(int *);
-
 /*
  * Brk needs to return an error.  Still support Linux's brk(0) query idiom,
  * which OSF programs just shouldn't be doing.  We're still not quite
diff --git a/fs/pipe.c b/fs/pipe.c
index 14f502b89cf5..df3719562fc1 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1034,11 +1034,6 @@ int do_pipe_flags(int *fd, int flags)
 	return error;
 }
 
-int do_pipe(int *fd)
-{
-	return do_pipe_flags(fd, 0);
-}
-
 /*
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way Unix traditionally does this, though.
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 92734c0012e6..51de83bd8a87 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1881,7 +1881,6 @@ static inline void allow_write_access(struct file *file)
 	if (file)
 		atomic_inc(&file->f_path.dentry->d_inode->i_writecount);
 }
-extern int do_pipe(int *);
 extern int do_pipe_flags(int *, int);
 extern struct file *create_read_pipe(struct file *f, int flags);
 extern struct file *create_write_pipe(int flags);
-- 
cgit v1.2.3


From c2aca5e529a2499d454c41e01f59f1d5fe4a1364 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Tue, 20 Jan 2009 10:29:45 +0000
Subject: vfs: Update fs.h to use inline functions when no file locking set

This avoids various issues which might give rise to compiler warnings
about missing functions and/or unused variable with the previous
macros. This also fixes a bug where one of the macros was returning
0, but it should have been void.

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 include/linux/fs.h | 165 ++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 139 insertions(+), 26 deletions(-)

(limited to 'include')

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 51de83bd8a87..d84020b7e676 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1063,34 +1063,147 @@ extern int lease_modify(struct file_lock **, int);
 extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
 extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
 #else /* !CONFIG_FILE_LOCKING */
-#define fcntl_getlk(a, b) ({ -EINVAL; })
-#define fcntl_setlk(a, b, c, d) ({ -EACCES; })
+static inline int fcntl_getlk(struct file *file, struct flock __user *user)
+{
+	return -EINVAL;
+}
+
+static inline int fcntl_setlk(unsigned int fd, struct file *file,
+			      unsigned int cmd, struct flock __user *user)
+{
+	return -EACCES;
+}
+
 #if BITS_PER_LONG == 32
-#define fcntl_getlk64(a, b) ({ -EINVAL; })
-#define fcntl_setlk64(a, b, c, d) ({ -EACCES; })
+static inline int fcntl_getlk64(struct file *file, struct flock64 __user *user)
+{
+	return -EINVAL;
+}
+
+static inline int fcntl_setlk64(unsigned int fd, struct file *file,
+				unsigned int cmd, struct flock64 __user *user)
+{
+	return -EACCES;
+}
 #endif
-#define fcntl_setlease(a, b, c) ({ 0; })
-#define fcntl_getlease(a) ({ 0; })
-#define locks_init_lock(a) ({ })
-#define __locks_copy_lock(a, b) ({ })
-#define locks_copy_lock(a, b) ({ })
-#define locks_remove_posix(a, b) ({ })
-#define locks_remove_flock(a) ({ })
-#define posix_test_lock(a, b) ({ 0; })
-#define posix_lock_file(a, b, c) ({ -ENOLCK; })
-#define posix_lock_file_wait(a, b) ({ -ENOLCK; })
-#define posix_unblock_lock(a, b) (-ENOENT)
-#define vfs_test_lock(a, b) ({ 0; })
-#define vfs_lock_file(a, b, c, d) (-ENOLCK)
-#define vfs_cancel_lock(a, b) ({ 0; })
-#define flock_lock_file_wait(a, b) ({ -ENOLCK; })
-#define __break_lease(a, b) ({ 0; })
-#define lease_get_mtime(a, b) ({ })
-#define generic_setlease(a, b, c) ({ -EINVAL; })
-#define vfs_setlease(a, b, c) ({ -EINVAL; })
-#define lease_modify(a, b) ({ -EINVAL; })
-#define lock_may_read(a, b, c) ({ 1; })
-#define lock_may_write(a, b, c) ({ 1; })
+static inline int fcntl_setlease(unsigned int fd, struct file *filp, long arg)
+{
+	return 0;
+}
+
+static inline int fcntl_getlease(struct file *filp)
+{
+	return 0;
+}
+
+static inline void locks_init_lock(struct file_lock *fl)
+{
+	return;
+}
+
+static inline void __locks_copy_lock(struct file_lock *new, struct file_lock *fl)
+{
+	return;
+}
+
+static inline void locks_copy_lock(struct file_lock *new, struct file_lock *fl)
+{
+	return;
+}
+
+static inline void locks_remove_posix(struct file *filp, fl_owner_t owner)
+{
+	return;
+}
+
+static inline void locks_remove_flock(struct file *filp)
+{
+	return;
+}
+
+static inline void posix_test_lock(struct file *filp, struct file_lock *fl)
+{
+	return;
+}
+
+static inline int posix_lock_file(struct file *filp, struct file_lock *fl,
+				  struct file_lock *conflock)
+{
+	return -ENOLCK;
+}
+
+static inline int posix_lock_file_wait(struct file *filp, struct file_lock *fl)
+{
+	return -ENOLCK;
+}
+
+static inline int posix_unblock_lock(struct file *filp,
+				     struct file_lock *waiter)
+{
+	return -ENOENT;
+}
+
+static inline int vfs_test_lock(struct file *filp, struct file_lock *fl)
+{
+	return 0;
+}
+
+static inline int vfs_lock_file(struct file *filp, unsigned int cmd,
+				struct file_lock *fl, struct file_lock *conf)
+{
+	return -ENOLCK;
+}
+
+static inline int vfs_cancel_lock(struct file *filp, struct file_lock *fl)
+{
+	return 0;
+}
+
+static inline int flock_lock_file_wait(struct file *filp,
+				       struct file_lock *request)
+{
+	return -ENOLCK;
+}
+
+static inline int __break_lease(struct inode *inode, unsigned int mode)
+{
+	return 0;
+}
+
+static inline void lease_get_mtime(struct inode *inode, struct timespec *time)
+{
+	return;
+}
+
+static inline int generic_setlease(struct file *filp, long arg,
+				    struct file_lock **flp)
+{
+	return -EINVAL;
+}
+
+static inline int vfs_setlease(struct file *filp, long arg,
+			       struct file_lock **lease)
+{
+	return -EINVAL;
+}
+
+static inline int lease_modify(struct file_lock **before, int arg)
+{
+	return -EINVAL;
+}
+
+static inline int lock_may_read(struct inode *inode, loff_t start,
+				unsigned long len)
+{
+	return 1;
+}
+
+static inline int lock_may_write(struct inode *inode, loff_t start,
+				 unsigned long len)
+{
+	return 1;
+}
+
 #endif /* !CONFIG_FILE_LOCKING */
 
 
-- 
cgit v1.2.3


From af5df56688acfb75c1b15b4e000ec5e82a9cdc29 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Tue, 20 Jan 2009 10:29:46 +0000
Subject: vfs: Further changes from macro to inline function in fs.h

There is a second set of macros for when CONFIG_FILE_LOCKING is
not set. This patch updates those to become inline functions
as well.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 include/linux/fs.h | 45 ++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 38 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/include/linux/fs.h b/include/linux/fs.h
index d84020b7e676..5f74d616cd7d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1800,13 +1800,44 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
 	return 0;
 }
 #else /* !CONFIG_FILE_LOCKING */
-#define locks_mandatory_locked(a) ({ 0; })
-#define locks_mandatory_area(a, b, c, d, e) ({ 0; })
-#define __mandatory_lock(a) ({ 0; })
-#define mandatory_lock(a) ({ 0; })
-#define locks_verify_locked(a) ({ 0; })
-#define locks_verify_truncate(a, b, c) ({ 0; })
-#define break_lease(a, b) ({ 0; })
+static inline int locks_mandatory_locked(struct inode *inode)
+{
+	return 0;
+}
+
+static inline int locks_mandatory_area(int rw, struct inode *inode,
+				       struct file *filp, loff_t offset,
+				       size_t count)
+{
+	return 0;
+}
+
+static inline int __mandatory_lock(struct inode *inode)
+{
+	return 0;
+}
+
+static inline int mandatory_lock(struct inode *inode)
+{
+	return 0;
+}
+
+static inline int locks_verify_locked(struct inode *inode)
+{
+	return 0;
+}
+
+static inline int locks_verify_truncate(struct inode *inode, struct file *filp,
+					size_t size)
+{
+	return 0;
+}
+
+static inline int break_lease(struct inode *inode, unsigned int mode)
+{
+	return 0;
+}
+
 #endif /* CONFIG_FILE_LOCKING */
 
 /* fs/open.c */
-- 
cgit v1.2.3


From e56980d451904b623573ef4966cbab768e433c79 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 11 Feb 2009 13:14:54 -0800
Subject: fs: make struct dentry->d_op const

This change will allow for tagging many dentry_operations const in the
source tree.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 include/linux/dcache.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index c66d22487bf8..15156364d196 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -112,7 +112,7 @@ struct dentry {
 	struct list_head d_subdirs;	/* our children */
 	struct list_head d_alias;	/* inode alias list */
 	unsigned long d_time;		/* used by d_revalidate */
-	struct dentry_operations *d_op;
+	const struct dentry_operations *d_op;
 	struct super_block *d_sb;	/* The root of the dentry tree */
 	void *d_fsdata;			/* fs-specific data */
 
-- 
cgit v1.2.3


From f786aa90e026f2174bb0c26d49f338c5c46ede55 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 20 Feb 2009 05:51:22 +0000
Subject: constify dentry_operations: NFS

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/nfs/dir.c            | 4 ++--
 fs/nfs/nfs4_fs.h        | 2 +-
 include/linux/nfs_fs.h  | 2 +-
 include/linux/nfs_xdr.h | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 672368f865ca..78bf72fc1db3 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -899,7 +899,7 @@ static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode)
 	iput(inode);
 }
 
-struct dentry_operations nfs_dentry_operations = {
+const struct dentry_operations nfs_dentry_operations = {
 	.d_revalidate	= nfs_lookup_revalidate,
 	.d_delete	= nfs_dentry_delete,
 	.d_iput		= nfs_dentry_iput,
@@ -967,7 +967,7 @@ out:
 #ifdef CONFIG_NFS_V4
 static int nfs_open_revalidate(struct dentry *, struct nameidata *);
 
-struct dentry_operations nfs4_dentry_operations = {
+const struct dentry_operations nfs4_dentry_operations = {
 	.d_revalidate	= nfs_open_revalidate,
 	.d_delete	= nfs_dentry_delete,
 	.d_iput		= nfs_dentry_iput,
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 4e4d33204376..84345deab26f 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -179,7 +179,7 @@ struct nfs4_state_recovery_ops {
 	int (*recover_lock)(struct nfs4_state *, struct file_lock *);
 };
 
-extern struct dentry_operations nfs4_dentry_operations;
+extern const struct dentry_operations nfs4_dentry_operations;
 extern const struct inode_operations nfs4_dir_inode_operations;
 
 /* inode.c */
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index db867b04ac3c..8cc8807f77d6 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -415,7 +415,7 @@ extern const struct inode_operations nfs_dir_inode_operations;
 extern const struct inode_operations nfs3_dir_inode_operations;
 #endif /* CONFIG_NFS_V3 */
 extern const struct file_operations nfs_dir_operations;
-extern struct dentry_operations nfs_dentry_operations;
+extern const struct dentry_operations nfs_dentry_operations;
 
 extern void nfs_force_lookup_revalidate(struct inode *dir);
 extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr);
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 2e5f00066afd..43a713fce11c 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -785,7 +785,7 @@ struct nfs_access_entry;
  */
 struct nfs_rpc_ops {
 	u32	version;		/* Protocol version */
-	struct dentry_operations *dentry_ops;
+	const struct dentry_operations *dentry_ops;
 	const struct inode_operations *dir_inode_ops;
 	const struct inode_operations *file_inode_ops;
 
-- 
cgit v1.2.3


From e16404ed0f3f330dc3e99b95cef69bb60bcd27f7 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 20 Feb 2009 05:55:13 +0000
Subject: constify dentry_operations: misc filesystems

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/adfs/adfs.h          | 2 +-
 fs/adfs/dir.c           | 2 +-
 fs/affs/affs.h          | 3 +--
 fs/affs/namei.c         | 4 ++--
 fs/coda/dir.c           | 2 +-
 fs/hfs/hfs_fs.h         | 2 +-
 fs/hfs/sysdep.c         | 2 +-
 fs/hfsplus/hfsplus_fs.h | 2 +-
 fs/hfsplus/inode.c      | 2 +-
 fs/hostfs/hostfs_kern.c | 4 ++--
 fs/hpfs/dentry.c        | 2 +-
 fs/isofs/inode.c        | 2 +-
 fs/ncpfs/dir.c          | 4 ++--
 fs/reiserfs/xattr.c     | 2 +-
 fs/smbfs/dir.c          | 4 ++--
 fs/sysv/namei.c         | 2 +-
 fs/sysv/sysv.h          | 2 +-
 include/linux/ncp_fs.h  | 2 +-
 18 files changed, 22 insertions(+), 23 deletions(-)

(limited to 'include')

diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h
index 831157502d5a..e0a85dbeeb88 100644
--- a/fs/adfs/adfs.h
+++ b/fs/adfs/adfs.h
@@ -86,7 +86,7 @@ void __adfs_error(struct super_block *sb, const char *function,
 /* dir_*.c */
 extern const struct inode_operations adfs_dir_inode_operations;
 extern const struct file_operations adfs_dir_operations;
-extern struct dentry_operations adfs_dentry_operations;
+extern const struct dentry_operations adfs_dentry_operations;
 extern struct adfs_dir_ops adfs_f_dir_ops;
 extern struct adfs_dir_ops adfs_fplus_dir_ops;
 
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index 85a30e929800..e867ccf37246 100644
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -263,7 +263,7 @@ adfs_compare(struct dentry *parent, struct qstr *entry, struct qstr *name)
 	return 0;
 }
 
-struct dentry_operations adfs_dentry_operations = {
+const struct dentry_operations adfs_dentry_operations = {
 	.d_hash		= adfs_hash,
 	.d_compare	= adfs_compare,
 };
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index e9ec915f7553..1a2d5e3c7f4e 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -199,8 +199,7 @@ extern const struct address_space_operations	 affs_symlink_aops;
 extern const struct address_space_operations	 affs_aops;
 extern const struct address_space_operations	 affs_aops_ofs;
 
-extern struct dentry_operations	 affs_dentry_operations;
-extern struct dentry_operations	 affs_dentry_operations_intl;
+extern const struct dentry_operations	 affs_dentry_operations;
 
 static inline void
 affs_set_blocksize(struct super_block *sb, int size)
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index cfcf1b6cf82b..960d336ec694 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -19,12 +19,12 @@ static int	 affs_intl_toupper(int ch);
 static int	 affs_intl_hash_dentry(struct dentry *, struct qstr *);
 static int       affs_intl_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
 
-struct dentry_operations affs_dentry_operations = {
+const struct dentry_operations affs_dentry_operations = {
 	.d_hash		= affs_hash_dentry,
 	.d_compare	= affs_compare_dentry,
 };
 
-static struct dentry_operations affs_intl_dentry_operations = {
+static const struct dentry_operations affs_intl_dentry_operations = {
 	.d_hash		= affs_intl_hash_dentry,
 	.d_compare	= affs_intl_compare_dentry,
 };
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 75b1fa90b2cb..4bb9d0a5decc 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -59,7 +59,7 @@ static int coda_return_EIO(void)
 }
 #define CODA_EIO_ERROR ((void *) (coda_return_EIO))
 
-static struct dentry_operations coda_dentry_operations =
+static const struct dentry_operations coda_dentry_operations =
 {
 	.d_revalidate	= coda_dentry_revalidate,
 	.d_delete	= coda_dentry_delete,
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 9955232fdf8c..052387e11671 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -213,7 +213,7 @@ extern void hfs_mdb_put(struct super_block *);
 extern int hfs_part_find(struct super_block *, sector_t *, sector_t *);
 
 /* string.c */
-extern struct dentry_operations hfs_dentry_operations;
+extern const struct dentry_operations hfs_dentry_operations;
 
 extern int hfs_hash_dentry(struct dentry *, struct qstr *);
 extern int hfs_strcmp(const unsigned char *, unsigned int,
diff --git a/fs/hfs/sysdep.c b/fs/hfs/sysdep.c
index 5bf89ec01cd4..7478f5c219aa 100644
--- a/fs/hfs/sysdep.c
+++ b/fs/hfs/sysdep.c
@@ -31,7 +31,7 @@ static int hfs_revalidate_dentry(struct dentry *dentry, struct nameidata *nd)
 	return 1;
 }
 
-struct dentry_operations hfs_dentry_operations =
+const struct dentry_operations hfs_dentry_operations =
 {
 	.d_revalidate	= hfs_revalidate_dentry,
 	.d_hash		= hfs_hash_dentry,
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index f027a905225f..5c10d803d9df 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -327,7 +327,7 @@ void hfsplus_file_truncate(struct inode *);
 /* inode.c */
 extern const struct address_space_operations hfsplus_aops;
 extern const struct address_space_operations hfsplus_btree_aops;
-extern struct dentry_operations hfsplus_dentry_operations;
+extern const struct dentry_operations hfsplus_dentry_operations;
 
 void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
 void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index f105ee9e1cc4..1bcf597c0562 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -137,7 +137,7 @@ const struct address_space_operations hfsplus_aops = {
 	.writepages	= hfsplus_writepages,
 };
 
-struct dentry_operations hfsplus_dentry_operations = {
+const struct dentry_operations hfsplus_dentry_operations = {
 	.d_hash       = hfsplus_hash_dentry,
 	.d_compare    = hfsplus_compare_dentry,
 };
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 5c538e0ec14b..fe02ad4740e7 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -31,12 +31,12 @@ static inline struct hostfs_inode_info *HOSTFS_I(struct inode *inode)
 
 #define FILE_HOSTFS_I(file) HOSTFS_I((file)->f_path.dentry->d_inode)
 
-int hostfs_d_delete(struct dentry *dentry)
+static int hostfs_d_delete(struct dentry *dentry)
 {
 	return 1;
 }
 
-struct dentry_operations hostfs_dentry_ops = {
+static const struct dentry_operations hostfs_dentry_ops = {
 	.d_delete		= hostfs_d_delete,
 };
 
diff --git a/fs/hpfs/dentry.c b/fs/hpfs/dentry.c
index 08319126b2af..940d6d150bee 100644
--- a/fs/hpfs/dentry.c
+++ b/fs/hpfs/dentry.c
@@ -49,7 +49,7 @@ static int hpfs_compare_dentry(struct dentry *dentry, struct qstr *a, struct qst
 	return 0;
 }
 
-static struct dentry_operations hpfs_dentry_operations = {
+static const struct dentry_operations hpfs_dentry_operations = {
 	.d_hash		= hpfs_hash_dentry,
 	.d_compare	= hpfs_compare_dentry,
 };
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 6147ec3643a0..13d2eddd0692 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -114,7 +114,7 @@ static const struct super_operations isofs_sops = {
 };
 
 
-static struct dentry_operations isofs_dentry_ops[] = {
+static const struct dentry_operations isofs_dentry_ops[] = {
 	{
 		.d_hash		= isofs_hash,
 		.d_compare	= isofs_dentry_cmp,
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index 07e9715b8658..9c590722d87e 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -79,7 +79,7 @@ static int ncp_hash_dentry(struct dentry *, struct qstr *);
 static int ncp_compare_dentry (struct dentry *, struct qstr *, struct qstr *);
 static int ncp_delete_dentry(struct dentry *);
 
-static struct dentry_operations ncp_dentry_operations =
+static const struct dentry_operations ncp_dentry_operations =
 {
 	.d_revalidate	= ncp_lookup_validate,
 	.d_hash		= ncp_hash_dentry,
@@ -87,7 +87,7 @@ static struct dentry_operations ncp_dentry_operations =
 	.d_delete	= ncp_delete_dentry,
 };
 
-struct dentry_operations ncp_root_dentry_operations =
+const struct dentry_operations ncp_root_dentry_operations =
 {
 	.d_hash		= ncp_hash_dentry,
 	.d_compare	= ncp_compare_dentry,
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index ad92461cbfc3..ae881ccd2f03 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -1136,7 +1136,7 @@ xattr_lookup_poison(struct dentry *dentry, struct qstr *q1, struct qstr *name)
 	return 1;
 }
 
-static struct dentry_operations xattr_lookup_poison_ops = {
+static const struct dentry_operations xattr_lookup_poison_ops = {
 	.d_compare = xattr_lookup_poison,
 };
 
diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c
index e7ddd0328ddc..3e4803b4427e 100644
--- a/fs/smbfs/dir.c
+++ b/fs/smbfs/dir.c
@@ -277,7 +277,7 @@ static int smb_hash_dentry(struct dentry *, struct qstr *);
 static int smb_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
 static int smb_delete_dentry(struct dentry *);
 
-static struct dentry_operations smbfs_dentry_operations =
+static const struct dentry_operations smbfs_dentry_operations =
 {
 	.d_revalidate	= smb_lookup_validate,
 	.d_hash		= smb_hash_dentry,
@@ -285,7 +285,7 @@ static struct dentry_operations smbfs_dentry_operations =
 	.d_delete	= smb_delete_dentry,
 };
 
-static struct dentry_operations smbfs_dentry_operations_case =
+static const struct dentry_operations smbfs_dentry_operations_case =
 {
 	.d_revalidate	= smb_lookup_validate,
 	.d_delete	= smb_delete_dentry,
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index a1f1ef33e81c..33e047b59b8d 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -38,7 +38,7 @@ static int sysv_hash(struct dentry *dentry, struct qstr *qstr)
 	return 0;
 }
 
-struct dentry_operations sysv_dentry_operations = {
+const struct dentry_operations sysv_dentry_operations = {
 	.d_hash		= sysv_hash,
 };
 
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 38ebe3f85b3d..5784a318c883 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -170,7 +170,7 @@ extern const struct file_operations sysv_file_operations;
 extern const struct file_operations sysv_dir_operations;
 extern const struct address_space_operations sysv_aops;
 extern const struct super_operations sysv_sops;
-extern struct dentry_operations sysv_dentry_operations;
+extern const struct dentry_operations sysv_dentry_operations;
 
 
 enum {
diff --git a/include/linux/ncp_fs.h b/include/linux/ncp_fs.h
index f69e66d151cc..30b06c893944 100644
--- a/include/linux/ncp_fs.h
+++ b/include/linux/ncp_fs.h
@@ -204,7 +204,7 @@ void ncp_update_inode2(struct inode *, struct ncp_entry_info *);
 /* linux/fs/ncpfs/dir.c */
 extern const struct inode_operations ncp_dir_inode_operations;
 extern const struct file_operations ncp_dir_operations;
-extern struct dentry_operations ncp_root_dentry_operations;
+extern const struct dentry_operations ncp_root_dentry_operations;
 int ncp_conn_logged_in(struct super_block *);
 int ncp_date_dos2unix(__le16 time, __le16 date);
 void ncp_date_unix2dos(int unix_date, __le16 * time, __le16 * date);
-- 
cgit v1.2.3


From 585d3bc06f4ca57f975a5a1f698f65a45ea66225 Mon Sep 17 00:00:00 2001
From: Nick Piggin <npiggin@suse.de>
Date: Wed, 25 Feb 2009 10:44:19 +0100
Subject: fs: move bdev code out of buffer.c

Move some block device related code out from buffer.c and put it in
block_dev.c. I'm trying to move non-buffer_head code out of buffer.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/block_dev.c              | 146 ++++++++++++++++++++++++++++++++++++++++++++
 fs/buffer.c                 | 145 -------------------------------------------
 include/linux/buffer_head.h |   7 ---
 include/linux/fs.h          |   7 +++
 4 files changed, 153 insertions(+), 152 deletions(-)

(limited to 'include')

diff --git a/fs/block_dev.c b/fs/block_dev.c
index b3c1efff5e1d..8c3c6899ccf3 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/blkpg.h>
 #include <linux/buffer_head.h>
+#include <linux/pagevec.h>
 #include <linux/writeback.h>
 #include <linux/mpage.h>
 #include <linux/mount.h>
@@ -174,6 +175,151 @@ blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
 				iov, offset, nr_segs, blkdev_get_blocks, NULL);
 }
 
+/*
+ * Write out and wait upon all the dirty data associated with a block
+ * device via its mapping.  Does not take the superblock lock.
+ */
+int sync_blockdev(struct block_device *bdev)
+{
+	int ret = 0;
+
+	if (bdev)
+		ret = filemap_write_and_wait(bdev->bd_inode->i_mapping);
+	return ret;
+}
+EXPORT_SYMBOL(sync_blockdev);
+
+/*
+ * Write out and wait upon all dirty data associated with this
+ * device.   Filesystem data as well as the underlying block
+ * device.  Takes the superblock lock.
+ */
+int fsync_bdev(struct block_device *bdev)
+{
+	struct super_block *sb = get_super(bdev);
+	if (sb) {
+		int res = fsync_super(sb);
+		drop_super(sb);
+		return res;
+	}
+	return sync_blockdev(bdev);
+}
+
+/**
+ * freeze_bdev  --  lock a filesystem and force it into a consistent state
+ * @bdev:	blockdevice to lock
+ *
+ * This takes the block device bd_mount_sem to make sure no new mounts
+ * happen on bdev until thaw_bdev() is called.
+ * If a superblock is found on this device, we take the s_umount semaphore
+ * on it to make sure nobody unmounts until the snapshot creation is done.
+ * The reference counter (bd_fsfreeze_count) guarantees that only the last
+ * unfreeze process can unfreeze the frozen filesystem actually when multiple
+ * freeze requests arrive simultaneously. It counts up in freeze_bdev() and
+ * count down in thaw_bdev(). When it becomes 0, thaw_bdev() will unfreeze
+ * actually.
+ */
+struct super_block *freeze_bdev(struct block_device *bdev)
+{
+	struct super_block *sb;
+	int error = 0;
+
+	mutex_lock(&bdev->bd_fsfreeze_mutex);
+	if (bdev->bd_fsfreeze_count > 0) {
+		bdev->bd_fsfreeze_count++;
+		sb = get_super(bdev);
+		mutex_unlock(&bdev->bd_fsfreeze_mutex);
+		return sb;
+	}
+	bdev->bd_fsfreeze_count++;
+
+	down(&bdev->bd_mount_sem);
+	sb = get_super(bdev);
+	if (sb && !(sb->s_flags & MS_RDONLY)) {
+		sb->s_frozen = SB_FREEZE_WRITE;
+		smp_wmb();
+
+		__fsync_super(sb);
+
+		sb->s_frozen = SB_FREEZE_TRANS;
+		smp_wmb();
+
+		sync_blockdev(sb->s_bdev);
+
+		if (sb->s_op->freeze_fs) {
+			error = sb->s_op->freeze_fs(sb);
+			if (error) {
+				printk(KERN_ERR
+					"VFS:Filesystem freeze failed\n");
+				sb->s_frozen = SB_UNFROZEN;
+				drop_super(sb);
+				up(&bdev->bd_mount_sem);
+				bdev->bd_fsfreeze_count--;
+				mutex_unlock(&bdev->bd_fsfreeze_mutex);
+				return ERR_PTR(error);
+			}
+		}
+	}
+
+	sync_blockdev(bdev);
+	mutex_unlock(&bdev->bd_fsfreeze_mutex);
+
+	return sb;	/* thaw_bdev releases s->s_umount and bd_mount_sem */
+}
+EXPORT_SYMBOL(freeze_bdev);
+
+/**
+ * thaw_bdev  -- unlock filesystem
+ * @bdev:	blockdevice to unlock
+ * @sb:		associated superblock
+ *
+ * Unlocks the filesystem and marks it writeable again after freeze_bdev().
+ */
+int thaw_bdev(struct block_device *bdev, struct super_block *sb)
+{
+	int error = 0;
+
+	mutex_lock(&bdev->bd_fsfreeze_mutex);
+	if (!bdev->bd_fsfreeze_count) {
+		mutex_unlock(&bdev->bd_fsfreeze_mutex);
+		return -EINVAL;
+	}
+
+	bdev->bd_fsfreeze_count--;
+	if (bdev->bd_fsfreeze_count > 0) {
+		if (sb)
+			drop_super(sb);
+		mutex_unlock(&bdev->bd_fsfreeze_mutex);
+		return 0;
+	}
+
+	if (sb) {
+		BUG_ON(sb->s_bdev != bdev);
+		if (!(sb->s_flags & MS_RDONLY)) {
+			if (sb->s_op->unfreeze_fs) {
+				error = sb->s_op->unfreeze_fs(sb);
+				if (error) {
+					printk(KERN_ERR
+						"VFS:Filesystem thaw failed\n");
+					sb->s_frozen = SB_FREEZE_TRANS;
+					bdev->bd_fsfreeze_count++;
+					mutex_unlock(&bdev->bd_fsfreeze_mutex);
+					return error;
+				}
+			}
+			sb->s_frozen = SB_UNFROZEN;
+			smp_wmb();
+			wake_up(&sb->s_wait_unfrozen);
+		}
+		drop_super(sb);
+	}
+
+	up(&bdev->bd_mount_sem);
+	mutex_unlock(&bdev->bd_fsfreeze_mutex);
+	return 0;
+}
+EXPORT_SYMBOL(thaw_bdev);
+
 static int blkdev_writepage(struct page *page, struct writeback_control *wbc)
 {
 	return block_write_full_page(page, blkdev_get_block, wbc);
diff --git a/fs/buffer.c b/fs/buffer.c
index 891e1c78e4f1..a2fd743d97cb 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -165,151 +165,6 @@ void end_buffer_write_sync(struct buffer_head *bh, int uptodate)
 	put_bh(bh);
 }
 
-/*
- * Write out and wait upon all the dirty data associated with a block
- * device via its mapping.  Does not take the superblock lock.
- */
-int sync_blockdev(struct block_device *bdev)
-{
-	int ret = 0;
-
-	if (bdev)
-		ret = filemap_write_and_wait(bdev->bd_inode->i_mapping);
-	return ret;
-}
-EXPORT_SYMBOL(sync_blockdev);
-
-/*
- * Write out and wait upon all dirty data associated with this
- * device.   Filesystem data as well as the underlying block
- * device.  Takes the superblock lock.
- */
-int fsync_bdev(struct block_device *bdev)
-{
-	struct super_block *sb = get_super(bdev);
-	if (sb) {
-		int res = fsync_super(sb);
-		drop_super(sb);
-		return res;
-	}
-	return sync_blockdev(bdev);
-}
-
-/**
- * freeze_bdev  --  lock a filesystem and force it into a consistent state
- * @bdev:	blockdevice to lock
- *
- * This takes the block device bd_mount_sem to make sure no new mounts
- * happen on bdev until thaw_bdev() is called.
- * If a superblock is found on this device, we take the s_umount semaphore
- * on it to make sure nobody unmounts until the snapshot creation is done.
- * The reference counter (bd_fsfreeze_count) guarantees that only the last
- * unfreeze process can unfreeze the frozen filesystem actually when multiple
- * freeze requests arrive simultaneously. It counts up in freeze_bdev() and
- * count down in thaw_bdev(). When it becomes 0, thaw_bdev() will unfreeze
- * actually.
- */
-struct super_block *freeze_bdev(struct block_device *bdev)
-{
-	struct super_block *sb;
-	int error = 0;
-
-	mutex_lock(&bdev->bd_fsfreeze_mutex);
-	if (bdev->bd_fsfreeze_count > 0) {
-		bdev->bd_fsfreeze_count++;
-		sb = get_super(bdev);
-		mutex_unlock(&bdev->bd_fsfreeze_mutex);
-		return sb;
-	}
-	bdev->bd_fsfreeze_count++;
-
-	down(&bdev->bd_mount_sem);
-	sb = get_super(bdev);
-	if (sb && !(sb->s_flags & MS_RDONLY)) {
-		sb->s_frozen = SB_FREEZE_WRITE;
-		smp_wmb();
-
-		__fsync_super(sb);
-
-		sb->s_frozen = SB_FREEZE_TRANS;
-		smp_wmb();
-
-		sync_blockdev(sb->s_bdev);
-
-		if (sb->s_op->freeze_fs) {
-			error = sb->s_op->freeze_fs(sb);
-			if (error) {
-				printk(KERN_ERR
-					"VFS:Filesystem freeze failed\n");
-				sb->s_frozen = SB_UNFROZEN;
-				drop_super(sb);
-				up(&bdev->bd_mount_sem);
-				bdev->bd_fsfreeze_count--;
-				mutex_unlock(&bdev->bd_fsfreeze_mutex);
-				return ERR_PTR(error);
-			}
-		}
-	}
-
-	sync_blockdev(bdev);
-	mutex_unlock(&bdev->bd_fsfreeze_mutex);
-
-	return sb;	/* thaw_bdev releases s->s_umount and bd_mount_sem */
-}
-EXPORT_SYMBOL(freeze_bdev);
-
-/**
- * thaw_bdev  -- unlock filesystem
- * @bdev:	blockdevice to unlock
- * @sb:		associated superblock
- *
- * Unlocks the filesystem and marks it writeable again after freeze_bdev().
- */
-int thaw_bdev(struct block_device *bdev, struct super_block *sb)
-{
-	int error = 0;
-
-	mutex_lock(&bdev->bd_fsfreeze_mutex);
-	if (!bdev->bd_fsfreeze_count) {
-		mutex_unlock(&bdev->bd_fsfreeze_mutex);
-		return -EINVAL;
-	}
-
-	bdev->bd_fsfreeze_count--;
-	if (bdev->bd_fsfreeze_count > 0) {
-		if (sb)
-			drop_super(sb);
-		mutex_unlock(&bdev->bd_fsfreeze_mutex);
-		return 0;
-	}
-
-	if (sb) {
-		BUG_ON(sb->s_bdev != bdev);
-		if (!(sb->s_flags & MS_RDONLY)) {
-			if (sb->s_op->unfreeze_fs) {
-				error = sb->s_op->unfreeze_fs(sb);
-				if (error) {
-					printk(KERN_ERR
-						"VFS:Filesystem thaw failed\n");
-					sb->s_frozen = SB_FREEZE_TRANS;
-					bdev->bd_fsfreeze_count++;
-					mutex_unlock(&bdev->bd_fsfreeze_mutex);
-					return error;
-				}
-			}
-			sb->s_frozen = SB_UNFROZEN;
-			smp_wmb();
-			wake_up(&sb->s_wait_unfrozen);
-		}
-		drop_super(sb);
-	}
-
-	up(&bdev->bd_mount_sem);
-	mutex_unlock(&bdev->bd_fsfreeze_mutex);
-	return 0;
-}
-EXPORT_SYMBOL(thaw_bdev);
-
 /*
  * Various filesystems appear to want __find_get_block to be non-blocking.
  * But it's the page lock which protects the buffers.  To get around this,
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index bd7ac793be19..f19fd9045ea0 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -165,15 +165,8 @@ int sync_mapping_buffers(struct address_space *mapping);
 void unmap_underlying_metadata(struct block_device *bdev, sector_t block);
 
 void mark_buffer_async_write(struct buffer_head *bh);
-void invalidate_bdev(struct block_device *);
-int sync_blockdev(struct block_device *bdev);
 void __wait_on_buffer(struct buffer_head *);
 wait_queue_head_t *bh_waitq_head(struct buffer_head *bh);
-int fsync_bdev(struct block_device *);
-struct super_block *freeze_bdev(struct block_device *);
-int thaw_bdev(struct block_device *, struct super_block *);
-int fsync_super(struct super_block *);
-int fsync_no_super(struct block_device *);
 struct buffer_head *__find_get_block(struct block_device *bdev, sector_t block,
 			unsigned size);
 struct buffer_head *__getblk(struct block_device *bdev, sector_t block,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5f74d616cd7d..c2c4454a268a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1874,6 +1874,13 @@ extern void bd_set_size(struct block_device *, loff_t size);
 extern void bd_forget(struct inode *inode);
 extern void bdput(struct block_device *);
 extern struct block_device *open_by_devnum(dev_t, fmode_t);
+extern void invalidate_bdev(struct block_device *);
+extern int sync_blockdev(struct block_device *bdev);
+extern struct super_block *freeze_bdev(struct block_device *);
+extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
+extern int fsync_bdev(struct block_device *);
+extern int fsync_super(struct super_block *);
+extern int fsync_no_super(struct block_device *);
 #else
 static inline void bd_forget(struct inode *inode) {}
 #endif
-- 
cgit v1.2.3


From a3ec947c85ec339884b30ef6a08133e9311fdae1 Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Date: Wed, 4 Mar 2009 12:06:34 -0800
Subject: vfs: simple_set_mnt() should return void

simple_set_mnt() is defined as returning 'int' but always returns 0.
Callers assume simple_set_mnt() never fails and don't properly cleanup if
it were to _ever_ fail.  For instance, get_sb_single() and get_sb_nodev()
should:

        up_write(sb->s_unmount);
        deactivate_super(sb);

if simple_set_mnt() fails.

Since simple_set_mnt() never fails, would be cleaner if it did not
return anything.

[akpm@linux-foundation.org: fix build]
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/mtd/mtdsuper.c | 7 +++++--
 fs/9p/vfs_super.c      | 5 +++--
 fs/cifs/cifsfs.c       | 3 ++-
 fs/devpts/inode.c      | 3 ++-
 fs/libfs.c             | 3 ++-
 fs/namespace.c         | 3 +--
 fs/proc/root.c         | 3 ++-
 fs/super.c             | 9 ++++++---
 fs/ubifs/super.c       | 3 ++-
 include/linux/fs.h     | 2 +-
 kernel/cgroup.c        | 3 ++-
 11 files changed, 28 insertions(+), 16 deletions(-)

(limited to 'include')

diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c
index 00d46e137b2a..92285d0089c2 100644
--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c
@@ -81,13 +81,16 @@ static int get_sb_mtd_aux(struct file_system_type *fs_type, int flags,
 
 	/* go */
 	sb->s_flags |= MS_ACTIVE;
-	return simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+
+	return 0;
 
 	/* new mountpoint for an already mounted superblock */
 already_mounted:
 	DEBUG(1, "MTDSB: Device %d (\"%s\") is already mounted\n",
 	      mtd->index, mtd->name);
-	ret = simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+	ret = 0;
 	goto out_put;
 
 out_error:
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 93212e40221a..5f8ab8adb5f5 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -168,8 +168,9 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
 	p9stat_free(st);
 	kfree(st);
 
-P9_DPRINTK(P9_DEBUG_VFS, " return simple set mount\n");
-	return simple_set_mnt(mnt, sb);
+P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
+	simple_set_mnt(mnt, sb);
+	return 0;
 
 release_sb:
 	if (sb) {
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 13ea53251dcf..38491fd3871d 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -606,7 +606,8 @@ cifs_get_sb(struct file_system_type *fs_type,
 		return rc;
 	}
 	sb->s_flags |= MS_ACTIVE;
-	return simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+	return 0;
 }
 
 static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 140b43144cd8..b0a76340a4cd 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -454,7 +454,8 @@ static int get_init_pts_sb(struct file_system_type *fs_type, int flags,
 		s->s_flags |= MS_ACTIVE;
 	}
 	do_remount_sb(s, flags, data, 0);
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 }
 
 /*
diff --git a/fs/libfs.c b/fs/libfs.c
index ec600bd33e75..4910a36f516e 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -242,7 +242,8 @@ int get_sb_pseudo(struct file_system_type *fs_type, char *name,
 	d_instantiate(dentry, root);
 	s->s_root = dentry;
 	s->s_flags |= MS_ACTIVE;
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 
 Enomem:
 	up_write(&s->s_umount);
diff --git a/fs/namespace.c b/fs/namespace.c
index 06f8e63f6cb1..2432ca6bb223 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -397,11 +397,10 @@ static void __mnt_unmake_readonly(struct vfsmount *mnt)
 	spin_unlock(&vfsmount_lock);
 }
 
-int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb)
+void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb)
 {
 	mnt->mnt_sb = sb;
 	mnt->mnt_root = dget(sb->s_root);
-	return 0;
 }
 
 EXPORT_SYMBOL(simple_set_mnt);
diff --git a/fs/proc/root.c b/fs/proc/root.c
index f6299a25594e..1e15a2b176e8 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -83,7 +83,8 @@ static int proc_get_sb(struct file_system_type *fs_type,
 		ns->proc_mnt = mnt;
 	}
 
-	return simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+	return 0;
 }
 
 static void proc_kill_sb(struct super_block *sb)
diff --git a/fs/super.c b/fs/super.c
index 6ce501447ada..e512fab64c93 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -831,7 +831,8 @@ int get_sb_bdev(struct file_system_type *fs_type,
 		bdev->bd_super = s;
 	}
 
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 
 error_s:
 	error = PTR_ERR(s);
@@ -877,7 +878,8 @@ int get_sb_nodev(struct file_system_type *fs_type,
 		return error;
 	}
 	s->s_flags |= MS_ACTIVE;
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 }
 
 EXPORT_SYMBOL(get_sb_nodev);
@@ -909,7 +911,8 @@ int get_sb_single(struct file_system_type *fs_type,
 		s->s_flags |= MS_ACTIVE;
 	}
 	do_remount_sb(s, flags, data, 0);
-	return simple_set_mnt(mnt, s);
+	simple_set_mnt(mnt, s);
+	return 0;
 }
 
 EXPORT_SYMBOL(get_sb_single);
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 1182b66a5491..c5c98355459a 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2034,7 +2034,8 @@ static int ubifs_get_sb(struct file_system_type *fs_type, int flags,
 	/* 'fill_super()' opens ubi again so we must close it here */
 	ubi_close_volume(ubi);
 
-	return simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+	return 0;
 
 out_deact:
 	up_write(&sb->s_umount);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c2c4454a268a..a7d73914a9f7 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1719,7 +1719,7 @@ struct super_block *sget(struct file_system_type *type,
 extern int get_sb_pseudo(struct file_system_type *, char *,
 	const struct super_operations *ops, unsigned long,
 	struct vfsmount *mnt);
-extern int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
+extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
 int __put_super_and_need_restart(struct super_block *sb);
 
 /* Alas, no aliases. Too much hassle with bringing module.h everywhere */
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index b01100ebd074..c500ca7239b2 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1071,7 +1071,8 @@ static int cgroup_get_sb(struct file_system_type *fs_type,
 		mutex_unlock(&cgroup_mutex);
 	}
 
-	return simple_set_mnt(mnt, sb);
+	simple_set_mnt(mnt, sb);
+	return 0;
 
  free_cg_links:
 	free_cg_links(&tmp_cg_links);
-- 
cgit v1.2.3


From 28a62277e06f93729d0340d9659153dcfbdbe16d Mon Sep 17 00:00:00 2001
From: Ben Gamari <bgamari@gmail.com>
Date: Tue, 17 Feb 2009 20:08:49 -0500
Subject: drm: Convert proc files to seq_file and introduce debugfs

The old mechanism to formatting proc files is extremely ugly. The
seq_file API was designed specifically for cases like this and greatly
simplifies the process.

Also, most of the files in /proc really don't belong there. This patch
introduces the infrastructure for putting these into debugfs and exposes
all of the proc files in debugfs as well.

Signed-off-by: Ben Gamari <bgamari@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/Makefile      |   3 +-
 drivers/gpu/drm/drm_debugfs.c | 235 ++++++++++++++
 drivers/gpu/drm/drm_drv.c     |  12 +-
 drivers/gpu/drm/drm_info.c    | 328 +++++++++++++++++++
 drivers/gpu/drm/drm_proc.c    | 721 +++++++-----------------------------------
 drivers/gpu/drm/drm_stub.c    |  15 +-
 include/drm/drmP.h            |  77 ++++-
 7 files changed, 776 insertions(+), 615 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_debugfs.c
 create mode 100644 drivers/gpu/drm/drm_info.c

(limited to 'include')

diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 30022c4a5c12..4ec5061fa584 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -10,7 +10,8 @@ drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \
 		drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
 		drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
-		drm_crtc.o drm_crtc_helper.o drm_modes.o drm_edid.o
+		drm_crtc.o drm_crtc_helper.o drm_modes.o drm_edid.o \
+		drm_info.o drm_debugfs.o
 
 drm-$(CONFIG_COMPAT) += drm_ioc32.o
 
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
new file mode 100644
index 000000000000..c77c6c6d9d2c
--- /dev/null
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -0,0 +1,235 @@
+/**
+ * \file drm_debugfs.c
+ * debugfs support for DRM
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:08:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ *
+ * 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
+ * VA LINUX SYSTEMS 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 <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include "drmP.h"
+
+#if defined(CONFIG_DEBUG_FS)
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+static struct drm_info_list drm_debugfs_list[] = {
+	{"name", drm_name_info, 0},
+	{"vm", drm_vm_info, 0},
+	{"clients", drm_clients_info, 0},
+	{"queues", drm_queues_info, 0},
+	{"bufs", drm_bufs_info, 0},
+	{"gem_names", drm_gem_name_info, DRIVER_GEM},
+	{"gem_objects", drm_gem_object_info, DRIVER_GEM},
+#if DRM_DEBUG_CODE
+	{"vma", drm_vma_info, 0},
+#endif
+};
+#define DRM_DEBUGFS_ENTRIES ARRAY_SIZE(drm_debugfs_list)
+
+
+static int drm_debugfs_open(struct inode *inode, struct file *file)
+{
+	struct drm_info_node *node = inode->i_private;
+
+	return single_open(file, node->info_ent->show, node);
+}
+
+
+static const struct file_operations drm_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_debugfs_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+
+/**
+ * Initialize a given set of debugfs files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI debugfs dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of debugfs files represented by an array of
+ * gdm_debugfs_lists in the given root directory.
+ */
+int drm_debugfs_create_files(struct drm_info_list *files, int count,
+			     struct dentry *root, struct drm_minor *minor)
+{
+	struct drm_device *dev = minor->dev;
+	struct dentry *ent;
+	struct drm_info_node *tmp;
+	char name[64];
+	int i, ret;
+
+	for (i = 0; i < count; i++) {
+		u32 features = files[i].driver_features;
+
+		if (features != 0 &&
+		    (dev->driver->driver_features & features) != features)
+			continue;
+
+		tmp = drm_alloc(sizeof(struct drm_info_node),
+				_DRM_DRIVER);
+		ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
+					  root, tmp, &drm_debugfs_fops);
+		if (!ent) {
+			DRM_ERROR("Cannot create /debugfs/dri/%s/%s\n",
+				  name, files[i].name);
+			drm_free(tmp, sizeof(struct drm_info_node),
+				 _DRM_DRIVER);
+			ret = -1;
+			goto fail;
+		}
+
+		tmp->minor = minor;
+		tmp->dent = ent;
+		tmp->info_ent = &files[i];
+		list_add(&(tmp->list), &(minor->debugfs_nodes.list));
+	}
+	return 0;
+
+fail:
+	drm_debugfs_remove_files(files, count, minor);
+	return ret;
+}
+EXPORT_SYMBOL(drm_debugfs_create_files);
+
+/**
+ * Initialize the DRI debugfs filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \param root DRI debugfs dir entry.
+ *
+ * Create the DRI debugfs root entry "/debugfs/dri", the device debugfs root entry
+ * "/debugfs/dri/%minor%/", and each entry in debugfs_list as
+ * "/debugfs/dri/%minor%/%name%".
+ */
+int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+		     struct dentry *root)
+{
+	struct drm_device *dev = minor->dev;
+	char name[64];
+	int ret;
+
+	INIT_LIST_HEAD(&minor->debugfs_nodes.list);
+	sprintf(name, "%d", minor_id);
+	minor->debugfs_root = debugfs_create_dir(name, root);
+	if (!minor->debugfs_root) {
+		DRM_ERROR("Cannot create /debugfs/dri/%s\n", name);
+		return -1;
+	}
+
+	ret = drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
+				       minor->debugfs_root, minor);
+	if (ret) {
+		debugfs_remove(minor->debugfs_root);
+		minor->debugfs_root = NULL;
+		DRM_ERROR("Failed to create core drm debugfs files\n");
+		return ret;
+	}
+
+	if (dev->driver->debugfs_init) {
+		ret = dev->driver->debugfs_init(minor);
+		if (ret) {
+			DRM_ERROR("DRM: Driver failed to initialize "
+				  "/debugfs/dri.\n");
+			return ret;
+		}
+	}
+	return 0;
+}
+
+
+/**
+ * Remove a list of debugfs files
+ *
+ * \param files The list of files
+ * \param count The number of files
+ * \param minor The minor of which we should remove the files
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+			     struct drm_minor *minor)
+{
+	struct list_head *pos, *q;
+	struct drm_info_node *tmp;
+	int i;
+
+	for (i = 0; i < count; i++) {
+		list_for_each_safe(pos, q, &minor->debugfs_nodes.list) {
+			tmp = list_entry(pos, struct drm_info_node, list);
+			if (tmp->info_ent == &files[i]) {
+				debugfs_remove(tmp->dent);
+				list_del(pos);
+				drm_free(tmp, sizeof(struct drm_info_node),
+					 _DRM_DRIVER);
+			}
+		}
+	}
+	return 0;
+}
+EXPORT_SYMBOL(drm_debugfs_remove_files);
+
+/**
+ * Cleanup the debugfs filesystem resources.
+ *
+ * \param minor device minor number.
+ * \return always zero.
+ *
+ * Remove all debugfs entries created by debugfs_init().
+ */
+int drm_debugfs_cleanup(struct drm_minor *minor)
+{
+	struct drm_device *dev = minor->dev;
+
+	if (!minor->debugfs_root)
+		return 0;
+
+	if (dev->driver->debugfs_cleanup)
+		dev->driver->debugfs_cleanup(minor);
+
+	drm_debugfs_remove_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES, minor);
+
+	debugfs_remove(minor->debugfs_root);
+	minor->debugfs_root = NULL;
+
+	return 0;
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 14c7a23dc157..ed32edb17166 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -46,9 +46,11 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/debugfs.h>
 #include "drmP.h"
 #include "drm_core.h"
 
+
 static int drm_version(struct drm_device *dev, void *data,
 		       struct drm_file *file_priv);
 
@@ -178,7 +180,7 @@ int drm_lastclose(struct drm_device * dev)
 
 	/* Clear AGP information */
 	if (drm_core_has_AGP(dev) && dev->agp &&
-	    !drm_core_check_feature(dev, DRIVER_MODESET)) {
+			!drm_core_check_feature(dev, DRIVER_MODESET)) {
 		struct drm_agp_mem *entry, *tempe;
 
 		/* Remove AGP resources, but leave dev->agp
@@ -382,6 +384,13 @@ static int __init drm_core_init(void)
 		goto err_p3;
 	}
 
+	drm_debugfs_root = debugfs_create_dir("dri", NULL);
+	if (!drm_debugfs_root) {
+		DRM_ERROR("Cannot create /debugfs/dri\n");
+		ret = -1;
+		goto err_p3;
+	}
+
 	drm_mem_init();
 
 	DRM_INFO("Initialized %s %d.%d.%d %s\n",
@@ -400,6 +409,7 @@ err_p1:
 static void __exit drm_core_exit(void)
 {
 	remove_proc_entry("dri", NULL);
+	debugfs_remove(drm_debugfs_root);
 	drm_sysfs_destroy();
 
 	unregister_chrdev(DRM_MAJOR, "drm");
diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
new file mode 100644
index 000000000000..fc98952b9033
--- /dev/null
+++ b/drivers/gpu/drm/drm_info.c
@@ -0,0 +1,328 @@
+/**
+ * \file drm_info.c
+ * DRM info file implementations
+ *
+ * \author Ben Gamari <bgamari@gmail.com>
+ */
+
+/*
+ * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright 2008 Ben Gamari <bgamari@gmail.com>
+ * All Rights Reserved.
+ *
+ * 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
+ * VA LINUX SYSTEMS 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 <linux/seq_file.h>
+#include "drmP.h"
+
+/**
+ * Called when "/proc/dri/.../name" is read.
+ *
+ * Prints the device name together with the bus id if available.
+ */
+int drm_name_info(struct seq_file *m, void *data)
+{
+	struct drm_info_node *node = (struct drm_info_node *) m->private;
+	struct drm_minor *minor = node->minor;
+	struct drm_device *dev = minor->dev;
+	struct drm_master *master = minor->master;
+
+	if (!master)
+		return 0;
+
+	if (master->unique) {
+		seq_printf(m, "%s %s %s\n",
+			   dev->driver->pci_driver.name,
+			   pci_name(dev->pdev), master->unique);
+	} else {
+		seq_printf(m, "%s %s\n", dev->driver->pci_driver.name,
+			   pci_name(dev->pdev));
+	}
+
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vm" is read.
+ *
+ * Prints information about all mappings in drm_device::maplist.
+ */
+int drm_vm_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;
+	struct drm_map *map;
+	struct drm_map_list *r_list;
+
+	/* Hardcoded from _DRM_FRAME_BUFFER,
+	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
+	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
+	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+	const char *type;
+	int i;
+
+	mutex_lock(&dev->struct_mutex);
+	seq_printf(m, "slot	 offset	      size type flags	 address mtrr\n\n");
+	i = 0;
+	list_for_each_entry(r_list, &dev->maplist, head) {
+		map = r_list->map;
+		if (!map)
+			continue;
+		if (map->type < 0 || map->type > 5)
+			type = "??";
+		else
+			type = types[map->type];
+
+		seq_printf(m, "%4d 0x%08lx 0x%08lx %4.4s  0x%02x 0x%08lx ",
+			   i,
+			   map->offset,
+			   map->size, type, map->flags,
+			   (unsigned long) r_list->user_token);
+		if (map->mtrr < 0)
+			seq_printf(m, "none\n");
+		else
+			seq_printf(m, "%4d\n", map->mtrr);
+		i++;
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../queues" is read.
+ */
+int drm_queues_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;
+	int i;
+	struct drm_queue *q;
+
+	mutex_lock(&dev->struct_mutex);
+	seq_printf(m, "  ctx/flags   use   fin"
+		   "   blk/rw/rwf  wait    flushed	   queued"
+		   "      locks\n\n");
+	for (i = 0; i < dev->queue_count; i++) {
+		q = dev->queuelist[i];
+		atomic_inc(&q->use_count);
+		seq_printf(m,   "%5d/0x%03x %5d %5d"
+			   " %5d/%c%c/%c%c%c %5Zd\n",
+			   i,
+			   q->flags,
+			   atomic_read(&q->use_count),
+			   atomic_read(&q->finalization),
+			   atomic_read(&q->block_count),
+			   atomic_read(&q->block_read) ? 'r' : '-',
+			   atomic_read(&q->block_write) ? 'w' : '-',
+			   waitqueue_active(&q->read_queue) ? 'r' : '-',
+			   waitqueue_active(&q->write_queue) ? 'w' : '-',
+			   waitqueue_active(&q->flush_queue) ? 'f' : '-',
+			   DRM_BUFCOUNT(&q->waitlist));
+		atomic_dec(&q->use_count);
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../bufs" is read.
+ */
+int drm_bufs_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;
+	struct drm_device_dma *dma;
+	int i, seg_pages;
+
+	mutex_lock(&dev->struct_mutex);
+	dma = dev->dma;
+	if (!dma) {
+		mutex_unlock(&dev->struct_mutex);
+		return 0;
+	}
+
+	seq_printf(m, " o     size count  free	 segs pages    kB\n\n");
+	for (i = 0; i <= DRM_MAX_ORDER; i++) {
+		if (dma->bufs[i].buf_count) {
+			seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
+			seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
+				   i,
+				   dma->bufs[i].buf_size,
+				   dma->bufs[i].buf_count,
+				   atomic_read(&dma->bufs[i].freelist.count),
+				   dma->bufs[i].seg_count,
+				   seg_pages,
+				   seg_pages * PAGE_SIZE / 1024);
+		}
+	}
+	seq_printf(m, "\n");
+	for (i = 0; i < dma->buf_count; i++) {
+		if (i && !(i % 32))
+			seq_printf(m, "\n");
+		seq_printf(m, " %d", dma->buflist[i]->list);
+	}
+	seq_printf(m, "\n");
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../vblank" is read.
+ */
+int drm_vblank_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;
+	int crtc;
+
+	mutex_lock(&dev->struct_mutex);
+	for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
+		seq_printf(m, "CRTC %d enable:     %d\n",
+			   crtc, atomic_read(&dev->vblank_refcount[crtc]));
+		seq_printf(m, "CRTC %d counter:    %d\n",
+			   crtc, drm_vblank_count(dev, crtc));
+		seq_printf(m, "CRTC %d last wait:  %d\n",
+			   crtc, dev->last_vblank_wait[crtc]);
+		seq_printf(m, "CRTC %d in modeset: %d\n",
+			   crtc, dev->vblank_inmodeset[crtc]);
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+/**
+ * Called when "/proc/dri/.../clients" is read.
+ *
+ */
+int drm_clients_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;
+	struct drm_file *priv;
+
+	mutex_lock(&dev->struct_mutex);
+	seq_printf(m, "a dev	pid    uid	magic	  ioctls\n\n");
+	list_for_each_entry(priv, &dev->filelist, lhead) {
+		seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
+			   priv->authenticated ? 'y' : 'n',
+			   priv->minor->index,
+			   priv->pid,
+			   priv->uid, priv->magic, priv->ioctl_count);
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+
+int drm_gem_one_name_info(int id, void *ptr, void *data)
+{
+	struct drm_gem_object *obj = ptr;
+	struct seq_file *m = data;
+
+	seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
+
+	seq_printf(m, "%6d %8zd %7d %8d\n",
+		   obj->name, obj->size,
+		   atomic_read(&obj->handlecount.refcount),
+		   atomic_read(&obj->refcount.refcount));
+	return 0;
+}
+
+int drm_gem_name_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;
+
+	seq_printf(m, "  name     size handles refcount\n");
+	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
+	return 0;
+}
+
+int drm_gem_object_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;
+
+	seq_printf(m, "%d objects\n", atomic_read(&dev->object_count));
+	seq_printf(m, "%d object bytes\n", atomic_read(&dev->object_memory));
+	seq_printf(m, "%d pinned\n", atomic_read(&dev->pin_count));
+	seq_printf(m, "%d pin bytes\n", atomic_read(&dev->pin_memory));
+	seq_printf(m, "%d gtt bytes\n", atomic_read(&dev->gtt_memory));
+	seq_printf(m, "%d gtt total\n", dev->gtt_total);
+	return 0;
+}
+
+#if DRM_DEBUG_CODE
+
+int drm_vma_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;
+	struct drm_vma_entry *pt;
+	struct vm_area_struct *vma;
+#if defined(__i386__)
+	unsigned int pgprot;
+#endif
+
+	mutex_lock(&dev->struct_mutex);
+	seq_printf(m, "vma use count: %d, high_memory = %p, 0x%08lx\n",
+		   atomic_read(&dev->vma_count),
+		   high_memory, virt_to_phys(high_memory));
+
+	list_for_each_entry(pt, &dev->vmalist, head) {
+		vma = pt->vma;
+		if (!vma)
+			continue;
+		seq_printf(m,
+			   "\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
+			   pt->pid, vma->vm_start, vma->vm_end,
+			   vma->vm_flags & VM_READ ? 'r' : '-',
+			   vma->vm_flags & VM_WRITE ? 'w' : '-',
+			   vma->vm_flags & VM_EXEC ? 'x' : '-',
+			   vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+			   vma->vm_flags & VM_LOCKED ? 'l' : '-',
+			   vma->vm_flags & VM_IO ? 'i' : '-',
+			   vma->vm_pgoff);
+
+#if defined(__i386__)
+		pgprot = pgprot_val(vma->vm_page_prot);
+		seq_printf(m, " %c%c%c%c%c%c%c%c%c",
+			   pgprot & _PAGE_PRESENT ? 'p' : '-',
+			   pgprot & _PAGE_RW ? 'w' : 'r',
+			   pgprot & _PAGE_USER ? 'u' : 's',
+			   pgprot & _PAGE_PWT ? 't' : 'b',
+			   pgprot & _PAGE_PCD ? 'u' : 'c',
+			   pgprot & _PAGE_ACCESSED ? 'a' : '-',
+			   pgprot & _PAGE_DIRTY ? 'd' : '-',
+			   pgprot & _PAGE_PSE ? 'm' : 'k',
+			   pgprot & _PAGE_GLOBAL ? 'g' : 'l');
+#endif
+		seq_printf(m, "\n");
+	}
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+}
+
+#endif
+
diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c
index 8df849f66830..9b3c5af61e98 100644
--- a/drivers/gpu/drm/drm_proc.c
+++ b/drivers/gpu/drm/drm_proc.c
@@ -37,697 +37,196 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/seq_file.h>
 #include "drmP.h"
 
-static int drm_name_info(char *buf, char **start, off_t offset,
-			 int request, int *eof, void *data);
-static int drm_vm_info(char *buf, char **start, off_t offset,
-		       int request, int *eof, void *data);
-static int drm_clients_info(char *buf, char **start, off_t offset,
-			    int request, int *eof, void *data);
-static int drm_queues_info(char *buf, char **start, off_t offset,
-			   int request, int *eof, void *data);
-static int drm_bufs_info(char *buf, char **start, off_t offset,
-			 int request, int *eof, void *data);
-static int drm_vblank_info(char *buf, char **start, off_t offset,
-			   int request, int *eof, void *data);
-static int drm_gem_name_info(char *buf, char **start, off_t offset,
-			     int request, int *eof, void *data);
-static int drm_gem_object_info(char *buf, char **start, off_t offset,
-			       int request, int *eof, void *data);
-#if DRM_DEBUG_CODE
-static int drm_vma_info(char *buf, char **start, off_t offset,
-			int request, int *eof, void *data);
-#endif
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
 
 /**
  * Proc file list.
  */
-static struct drm_proc_list {
-	const char *name;	/**< file name */
-	int (*f) (char *, char **, off_t, int, int *, void *);		/**< proc callback*/
-	u32 driver_features; /**< Required driver features for this entry */
-} drm_proc_list[] = {
+static struct drm_info_list drm_proc_list[] = {
 	{"name", drm_name_info, 0},
-	{"mem", drm_mem_info, 0},
 	{"vm", drm_vm_info, 0},
 	{"clients", drm_clients_info, 0},
 	{"queues", drm_queues_info, 0},
 	{"bufs", drm_bufs_info, 0},
-	{"vblank", drm_vblank_info, 0},
 	{"gem_names", drm_gem_name_info, DRIVER_GEM},
 	{"gem_objects", drm_gem_object_info, DRIVER_GEM},
 #if DRM_DEBUG_CODE
-	{"vma", drm_vma_info},
+	{"vma", drm_vma_info, 0},
 #endif
 };
-
 #define DRM_PROC_ENTRIES ARRAY_SIZE(drm_proc_list)
 
+static int drm_proc_open(struct inode *inode, struct file *file)
+{
+	struct drm_info_node* node = PDE(inode)->data;
+
+	return single_open(file, node->info_ent->show, node);
+}
+
+static const struct file_operations drm_proc_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_proc_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+
 /**
- * Initialize the DRI proc filesystem for a device.
+ * Initialize a given set of proc files for a device
  *
- * \param dev DRM device.
- * \param minor device minor number.
+ * \param files The array of files to create
+ * \param count The number of files given
  * \param root DRI proc dir entry.
- * \param dev_root resulting DRI device proc dir entry.
- * \return root entry pointer on success, or NULL on failure.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
  *
- * Create the DRI proc root entry "/proc/dri", the device proc root entry
- * "/proc/dri/%minor%/", and each entry in proc_list as
- * "/proc/dri/%minor%/%name%".
+ * Create a given set of proc files represented by an array of
+ * gdm_proc_lists in the given root directory.
  */
-int drm_proc_init(struct drm_minor *minor, int minor_id,
-		  struct proc_dir_entry *root)
+int drm_proc_create_files(struct drm_info_list *files, int count,
+			  struct proc_dir_entry *root, struct drm_minor *minor)
 {
 	struct drm_device *dev = minor->dev;
 	struct proc_dir_entry *ent;
-	int i, j, ret;
+	struct drm_info_node *tmp;
 	char name[64];
+	int i, ret;
 
-	sprintf(name, "%d", minor_id);
-	minor->dev_root = proc_mkdir(name, root);
-	if (!minor->dev_root) {
-		DRM_ERROR("Cannot create /proc/dri/%s\n", name);
-		return -1;
-	}
-
-	for (i = 0; i < DRM_PROC_ENTRIES; i++) {
-		u32 features = drm_proc_list[i].driver_features;
+	for (i = 0; i < count; i++) {
+		u32 features = files[i].driver_features;
 
 		if (features != 0 &&
 		    (dev->driver->driver_features & features) != features)
 			continue;
 
-		ent = create_proc_entry(drm_proc_list[i].name,
-					S_IFREG | S_IRUGO, minor->dev_root);
+		tmp = drm_alloc(sizeof(struct drm_info_node), _DRM_DRIVER);
+		ent = create_proc_entry(files[i].name, S_IFREG | S_IRUGO, root);
 		if (!ent) {
 			DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
-				  name, drm_proc_list[i].name);
+				  name, files[i].name);
+			drm_free(tmp, sizeof(struct drm_info_node),
+				 _DRM_DRIVER);
 			ret = -1;
 			goto fail;
 		}
-		ent->read_proc = drm_proc_list[i].f;
-		ent->data = minor;
-	}
 
-	if (dev->driver->proc_init) {
-		ret = dev->driver->proc_init(minor);
-		if (ret) {
-			DRM_ERROR("DRM: Driver failed to initialize "
-				  "/proc/dri.\n");
-			goto fail;
-		}
+		ent->proc_fops = &drm_proc_fops;
+		ent->data = tmp;
+		tmp->minor = minor;
+		tmp->info_ent = &files[i];
+		list_add(&(tmp->list), &(minor->proc_nodes.list));
 	}
-
 	return 0;
- fail:
 
-	for (j = 0; j < i; j++)
-		remove_proc_entry(drm_proc_list[i].name,
-				  minor->dev_root);
-	remove_proc_entry(name, root);
-	minor->dev_root = NULL;
+fail:
+	for (i = 0; i < count; i++)
+		remove_proc_entry(drm_proc_list[i].name, minor->proc_root);
 	return ret;
 }
 
 /**
- * Cleanup the proc filesystem resources.
+ * Initialize the DRI proc filesystem for a device
  *
- * \param minor device minor number.
+ * \param dev DRM device
+ * \param minor device minor number
  * \param root DRI proc dir entry.
- * \param dev_root DRI device proc dir entry.
- * \return always zero.
+ * \param dev_root resulting DRI device proc dir entry.
+ * \return root entry pointer on success, or NULL on failure.
  *
- * Remove all proc entries created by proc_init().
+ * Create the DRI proc root entry "/proc/dri", the device proc root entry
+ * "/proc/dri/%minor%/", and each entry in proc_list as
+ * "/proc/dri/%minor%/%name%".
  */
-int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
+int drm_proc_init(struct drm_minor *minor, int minor_id,
+		  struct proc_dir_entry *root)
 {
 	struct drm_device *dev = minor->dev;
-	int i;
 	char name[64];
+	int ret;
 
-	if (!root || !minor->dev_root)
-		return 0;
-
-	if (dev->driver->proc_cleanup)
-		dev->driver->proc_cleanup(minor);
-
-	for (i = 0; i < DRM_PROC_ENTRIES; i++)
-		remove_proc_entry(drm_proc_list[i].name, minor->dev_root);
-	sprintf(name, "%d", minor->index);
-	remove_proc_entry(name, root);
-
-	return 0;
-}
-
-/**
- * Called when "/proc/dri/.../name" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- *
- * Prints the device name together with the bus id if available.
- */
-static int drm_name_info(char *buf, char **start, off_t offset, int request,
-			 int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_master *master = minor->master;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
+	INIT_LIST_HEAD(&minor->proc_nodes.list);
+	sprintf(name, "%d", minor_id);
+	minor->proc_root = proc_mkdir(name, root);
+	if (!minor->proc_root) {
+		DRM_ERROR("Cannot create /proc/dri/%s\n", name);
+		return -1;
 	}
 
-	if (!master)
-		return 0;
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	if (master->unique) {
-		DRM_PROC_PRINT("%s %s %s\n",
-			       dev->driver->pci_driver.name,
-			       pci_name(dev->pdev), master->unique);
-	} else {
-		DRM_PROC_PRINT("%s %s\n", dev->driver->pci_driver.name,
-			       pci_name(dev->pdev));
+	ret = drm_proc_create_files(drm_proc_list, DRM_PROC_ENTRIES,
+				    minor->proc_root, minor);
+	if (ret) {
+		remove_proc_entry(name, root);
+		minor->proc_root = NULL;
+		DRM_ERROR("Failed to create core drm proc files\n");
+		return ret;
 	}
 
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Called when "/proc/dri/.../vm" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- *
- * Prints information about all mappings in drm_device::maplist.
- */
-static int drm__vm_info(char *buf, char **start, off_t offset, int request,
-			int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	struct drm_map *map;
-	struct drm_map_list *r_list;
-
-	/* Hardcoded from _DRM_FRAME_BUFFER,
-	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
-	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
-	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
-	const char *type;
-	int i;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT("slot	 offset	      size type flags	 "
-		       "address mtrr\n\n");
-	i = 0;
-	list_for_each_entry(r_list, &dev->maplist, head) {
-		map = r_list->map;
-		if (!map)
-			continue;
-		if (map->type < 0 || map->type > 5)
-			type = "??";
-		else
-			type = types[map->type];
-		DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s  0x%02x 0x%08lx ",
-			       i,
-			       map->offset,
-			       map->size, type, map->flags,
-			       (unsigned long) r_list->user_token);
-		if (map->mtrr < 0) {
-			DRM_PROC_PRINT("none\n");
-		} else {
-			DRM_PROC_PRINT("%4d\n", map->mtrr);
+	if (dev->driver->proc_init) {
+		ret = dev->driver->proc_init(minor);
+		if (ret) {
+			DRM_ERROR("DRM: Driver failed to initialize "
+				  "/proc/dri.\n");
+			return ret;
 		}
-		i++;
-	}
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _vm_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_vm_info(char *buf, char **start, off_t offset, int request,
-		       int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__vm_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
-}
-
-/**
- * Called when "/proc/dri/.../queues" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- */
-static int drm__queues_info(char *buf, char **start, off_t offset,
-			    int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	int i;
-	struct drm_queue *q;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
 	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT("  ctx/flags   use   fin"
-		       "   blk/rw/rwf  wait    flushed	   queued"
-		       "      locks\n\n");
-	for (i = 0; i < dev->queue_count; i++) {
-		q = dev->queuelist[i];
-		atomic_inc(&q->use_count);
-		DRM_PROC_PRINT_RET(atomic_dec(&q->use_count),
-				   "%5d/0x%03x %5d %5d"
-				   " %5d/%c%c/%c%c%c %5Zd\n",
-				   i,
-				   q->flags,
-				   atomic_read(&q->use_count),
-				   atomic_read(&q->finalization),
-				   atomic_read(&q->block_count),
-				   atomic_read(&q->block_read) ? 'r' : '-',
-				   atomic_read(&q->block_write) ? 'w' : '-',
-				   waitqueue_active(&q->read_queue) ? 'r' : '-',
-				   waitqueue_active(&q->
-						    write_queue) ? 'w' : '-',
-				   waitqueue_active(&q->
-						    flush_queue) ? 'f' : '-',
-				   DRM_BUFCOUNT(&q->waitlist));
-		atomic_dec(&q->use_count);
-	}
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _queues_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_queues_info(char *buf, char **start, off_t offset, int request,
-			   int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__queues_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
+	return 0;
 }
 
-/**
- * Called when "/proc/dri/.../bufs" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- */
-static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
-			  int *eof, void *data)
+int drm_proc_remove_files(struct drm_info_list *files, int count,
+			  struct drm_minor *minor)
 {
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	struct drm_device_dma *dma = dev->dma;
+	struct list_head *pos, *q;
+	struct drm_info_node *tmp;
 	int i;
 
-	if (!dma || offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT(" o     size count  free	 segs pages    kB\n\n");
-	for (i = 0; i <= DRM_MAX_ORDER; i++) {
-		if (dma->bufs[i].buf_count)
-			DRM_PROC_PRINT("%2d %8d %5d %5d %5d %5d %5ld\n",
-				       i,
-				       dma->bufs[i].buf_size,
-				       dma->bufs[i].buf_count,
-				       atomic_read(&dma->bufs[i]
-						   .freelist.count),
-				       dma->bufs[i].seg_count,
-				       dma->bufs[i].seg_count
-				       * (1 << dma->bufs[i].page_order),
-				       (dma->bufs[i].seg_count
-					* (1 << dma->bufs[i].page_order))
-				       * PAGE_SIZE / 1024);
-	}
-	DRM_PROC_PRINT("\n");
-	for (i = 0; i < dma->buf_count; i++) {
-		if (i && !(i % 32))
-			DRM_PROC_PRINT("\n");
-		DRM_PROC_PRINT(" %d", dma->buflist[i]->list);
+	for (i = 0; i < count; i++) {
+		list_for_each_safe(pos, q, &minor->proc_nodes.list) {
+			tmp = list_entry(pos, struct drm_info_node, list);
+			if (tmp->info_ent == &files[i]) {
+				remove_proc_entry(files[i].name,
+						  minor->proc_root);
+				list_del(pos);
+				drm_free(tmp, sizeof(struct drm_info_node),
+					 _DRM_DRIVER);
+			}
+		}
 	}
-	DRM_PROC_PRINT("\n");
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _bufs_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
-			 int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__bufs_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
+	return 0;
 }
 
 /**
- * Called when "/proc/dri/.../vblank" is read.
+ * Cleanup the proc filesystem resources.
  *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
- */
-static int drm__vblank_info(char *buf, char **start, off_t offset, int request,
-			  int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	int crtc;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
-		DRM_PROC_PRINT("CRTC %d enable:     %d\n",
-			       crtc, atomic_read(&dev->vblank_refcount[crtc]));
-		DRM_PROC_PRINT("CRTC %d counter:    %d\n",
-			       crtc, drm_vblank_count(dev, crtc));
-		DRM_PROC_PRINT("CRTC %d last wait:  %d\n",
-			       crtc, dev->last_vblank_wait[crtc]);
-		DRM_PROC_PRINT("CRTC %d in modeset: %d\n",
-			       crtc, dev->vblank_inmodeset[crtc]);
-	}
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _vblank_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_vblank_info(char *buf, char **start, off_t offset, int request,
-			 int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__vblank_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
-}
-
-/**
- * Called when "/proc/dri/.../clients" is read.
+ * \param minor device minor number.
+ * \param root DRI proc dir entry.
+ * \param dev_root DRI device proc dir entry.
+ * \return always zero.
  *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
+ * Remove all proc entries created by proc_init().
  */
-static int drm__clients_info(char *buf, char **start, off_t offset,
-			     int request, int *eof, void *data)
+int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
 {
-	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
-	int len = 0;
-	struct drm_file *priv;
+	char name[64];
 
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
+	if (!root || !minor->proc_root)
 		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT("a dev	pid    uid	magic	  ioctls\n\n");
-	list_for_each_entry(priv, &dev->filelist, lhead) {
-		DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
-			       priv->authenticated ? 'y' : 'n',
-			       priv->minor->index,
-			       priv->pid,
-			       priv->uid, priv->magic, priv->ioctl_count);
-	}
 
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-/**
- * Simply calls _clients_info() while holding the drm_device::struct_mutex lock.
- */
-static int drm_clients_info(char *buf, char **start, off_t offset,
-			    int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__clients_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
-}
-
-struct drm_gem_name_info_data {
-       int                     len;
-       char                    *buf;
-       int                     eof;
-};
+	if (dev->driver->proc_cleanup)
+		dev->driver->proc_cleanup(minor);
 
-static int drm_gem_one_name_info(int id, void *ptr, void *data)
-{
-	struct drm_gem_object *obj = ptr;
-	struct drm_gem_name_info_data   *nid = data;
+	drm_proc_remove_files(drm_proc_list, DRM_PROC_ENTRIES, minor);
 
-	DRM_INFO("name %d size %zd\n", obj->name, obj->size);
-	if (nid->eof)
-		return 0;
+	sprintf(name, "%d", minor->index);
+	remove_proc_entry(name, root);
 
-	nid->len += sprintf(&nid->buf[nid->len],
-			    "%6d %8zd %7d %8d\n",
-			    obj->name, obj->size,
-			    atomic_read(&obj->handlecount.refcount),
-			    atomic_read(&obj->refcount.refcount));
-	if (nid->len > DRM_PROC_LIMIT) {
-		nid->eof = 1;
-		return 0;
-	}
 	return 0;
 }
 
-static int drm_gem_name_info(char *buf, char **start, off_t offset,
-			     int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	struct drm_gem_name_info_data nid;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	nid.len = sprintf(buf, "  name     size handles refcount\n");
-	nid.buf = buf;
-	nid.eof = 0;
-	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, &nid);
-
-	*start = &buf[offset];
-	*eof = 0;
-	if (nid.len > request + offset)
-		return request;
-	*eof = 1;
-	return nid.len - offset;
-}
-
-static int drm_gem_object_info(char *buf, char **start, off_t offset,
-			       int request, int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-	DRM_PROC_PRINT("%d objects\n", atomic_read(&dev->object_count));
-	DRM_PROC_PRINT("%d object bytes\n", atomic_read(&dev->object_memory));
-	DRM_PROC_PRINT("%d pinned\n", atomic_read(&dev->pin_count));
-	DRM_PROC_PRINT("%d pin bytes\n", atomic_read(&dev->pin_memory));
-	DRM_PROC_PRINT("%d gtt bytes\n", atomic_read(&dev->gtt_memory));
-	DRM_PROC_PRINT("%d gtt total\n", dev->gtt_total);
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-#if DRM_DEBUG_CODE
-
-static int drm__vma_info(char *buf, char **start, off_t offset, int request,
-			 int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int len = 0;
-	struct drm_vma_entry *pt;
-	struct vm_area_struct *vma;
-#if defined(__i386__)
-	unsigned int pgprot;
-#endif
-
-	if (offset > DRM_PROC_LIMIT) {
-		*eof = 1;
-		return 0;
-	}
-
-	*start = &buf[offset];
-	*eof = 0;
-
-	DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
-		       atomic_read(&dev->vma_count),
-		       high_memory, virt_to_phys(high_memory));
-	list_for_each_entry(pt, &dev->vmalist, head) {
-		if (!(vma = pt->vma))
-			continue;
-		DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
-			       pt->pid,
-			       vma->vm_start,
-			       vma->vm_end,
-			       vma->vm_flags & VM_READ ? 'r' : '-',
-			       vma->vm_flags & VM_WRITE ? 'w' : '-',
-			       vma->vm_flags & VM_EXEC ? 'x' : '-',
-			       vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
-			       vma->vm_flags & VM_LOCKED ? 'l' : '-',
-			       vma->vm_flags & VM_IO ? 'i' : '-',
-			       vma->vm_pgoff);
-
-#if defined(__i386__)
-		pgprot = pgprot_val(vma->vm_page_prot);
-		DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c",
-			       pgprot & _PAGE_PRESENT ? 'p' : '-',
-			       pgprot & _PAGE_RW ? 'w' : 'r',
-			       pgprot & _PAGE_USER ? 'u' : 's',
-			       pgprot & _PAGE_PWT ? 't' : 'b',
-			       pgprot & _PAGE_PCD ? 'u' : 'c',
-			       pgprot & _PAGE_ACCESSED ? 'a' : '-',
-			       pgprot & _PAGE_DIRTY ? 'd' : '-',
-			       pgprot & _PAGE_PSE ? 'm' : 'k',
-			       pgprot & _PAGE_GLOBAL ? 'g' : 'l');
-#endif
-		DRM_PROC_PRINT("\n");
-	}
-
-	if (len > request + offset)
-		return request;
-	*eof = 1;
-	return len - offset;
-}
-
-static int drm_vma_info(char *buf, char **start, off_t offset, int request,
-			int *eof, void *data)
-{
-	struct drm_minor *minor = (struct drm_minor *) data;
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	mutex_lock(&dev->struct_mutex);
-	ret = drm__vma_info(buf, start, offset, request, eof, data);
-	mutex_unlock(&dev->struct_mutex);
-	return ret;
-}
-#endif
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 7c8b15b22bf2..48f33be8fd0f 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -50,6 +50,7 @@ struct idr drm_minors_idr;
 
 struct class *drm_class;
 struct proc_dir_entry *drm_proc_root;
+struct dentry *drm_debugfs_root;
 
 static int drm_minor_get_id(struct drm_device *dev, int type)
 {
@@ -313,7 +314,15 @@ static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int t
 			goto err_mem;
 		}
 	} else
-		new_minor->dev_root = NULL;
+		new_minor->proc_root = NULL;
+
+#if defined(CONFIG_DEBUG_FS)
+	ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
+	if (ret) {
+		DRM_ERROR("DRM: Failed to initialize /debugfs/dri.\n");
+		goto err_g2;
+	}
+#endif
 
 	ret = drm_sysfs_device_add(new_minor);
 	if (ret) {
@@ -451,6 +460,10 @@ int drm_put_minor(struct drm_minor **minor_p)
 
 	if (minor->type == DRM_MINOR_LEGACY)
 		drm_proc_cleanup(minor, drm_proc_root);
+#if defined(CONFIG_DEBUG_FS)
+	drm_debugfs_cleanup(minor);
+#endif
+
 	drm_sysfs_device_remove(minor);
 
 	idr_remove(&drm_minors_idr, minor->index);
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index e5f4ae989abf..c19a93c3be85 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -758,6 +758,8 @@ struct drm_driver {
 
 	int (*proc_init)(struct drm_minor *minor);
 	void (*proc_cleanup)(struct drm_minor *minor);
+	int (*debugfs_init)(struct drm_minor *minor);
+	void (*debugfs_cleanup)(struct drm_minor *minor);
 
 	/**
 	 * Driver-specific constructor for drm_gem_objects, to set up
@@ -793,6 +795,48 @@ struct drm_driver {
 #define DRM_MINOR_CONTROL 2
 #define DRM_MINOR_RENDER 3
 
+
+/**
+ * debugfs node list. This structure represents a debugfs file to
+ * be created by the drm core
+ */
+struct drm_debugfs_list {
+	const char *name; /** file name */
+	int (*show)(struct seq_file*, void*); /** show callback */
+	u32 driver_features; /**< Required driver features for this entry */
+};
+
+/**
+ * debugfs node structure. This structure represents a debugfs file.
+ */
+struct drm_debugfs_node {
+	struct list_head list;
+	struct drm_minor *minor;
+	struct drm_debugfs_list *debugfs_ent;
+	struct dentry *dent;
+};
+
+/**
+ * Info file list entry. This structure represents a debugfs or proc file to
+ * be created by the drm core
+ */
+struct drm_info_list {
+	const char *name; /** file name */
+	int (*show)(struct seq_file*, void*); /** show callback */
+	u32 driver_features; /**< Required driver features for this entry */
+	void *data;
+};
+
+/**
+ * debugfs node structure. This structure represents a debugfs file.
+ */
+struct drm_info_node {
+	struct list_head list;
+	struct drm_minor *minor;
+	struct drm_info_list *info_ent;
+	struct dentry *dent;
+};
+
 /**
  * DRM minor structure. This structure represents a drm minor number.
  */
@@ -802,7 +846,12 @@ struct drm_minor {
 	dev_t device;			/**< Device number for mknod */
 	struct device kdev;		/**< Linux device */
 	struct drm_device *dev;
-	struct proc_dir_entry *dev_root;  /**< proc directory entry */
+
+	struct proc_dir_entry *proc_root;  /**< proc directory entry */
+	struct drm_info_node proc_nodes;
+	struct dentry *debugfs_root;
+	struct drm_info_node debugfs_nodes;
+
 	struct drm_master *master; /* currently active master for this node */
 	struct list_head master_list;
 	struct drm_mode_group mode_group;
@@ -1258,6 +1307,7 @@ extern unsigned int drm_debug;
 
 extern struct class *drm_class;
 extern struct proc_dir_entry *drm_proc_root;
+extern struct dentry *drm_debugfs_root;
 
 extern struct idr drm_minors_idr;
 
@@ -1268,6 +1318,31 @@ extern int drm_proc_init(struct drm_minor *minor, int minor_id,
 			 struct proc_dir_entry *root);
 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
 
+				/* Debugfs support */
+#if defined(CONFIG_DEBUG_FS)
+extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+			    struct dentry *root);
+extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
+				    struct dentry *root, struct drm_minor *minor);
+extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+                                    struct drm_minor *minor);
+extern int drm_debugfs_cleanup(struct drm_minor *minor);
+#endif
+
+				/* Info file support */
+extern int drm_name_info(struct seq_file *m, void *data);
+extern int drm_vm_info(struct seq_file *m, void *data);
+extern int drm_queues_info(struct seq_file *m, void *data);
+extern int drm_bufs_info(struct seq_file *m, void *data);
+extern int drm_vblank_info(struct seq_file *m, void *data);
+extern int drm_clients_info(struct seq_file *m, void* data);
+extern int drm_gem_name_info(struct seq_file *m, void *data);
+extern int drm_gem_object_info(struct seq_file *m, void* data);
+
+#if DRM_DEBUG_CODE
+extern int drm_vma_info(struct seq_file *m, void *data);
+#endif
+
 				/* Scatter Gather Support (drm_scatter.h) */
 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
-- 
cgit v1.2.3


From 2177832f2e20fceb32142bb4fd33ae68c8af8c5a Mon Sep 17 00:00:00 2001
From: Shaohua Li <shaohua.li@intel.com>
Date: Mon, 23 Feb 2009 15:19:16 +0800
Subject: agp/intel: Add support for new intel chipset.

This is a G33-like desktop and mobile chipset.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/char/agp/intel-agp.c         |  21 ++++++-
 drivers/gpu/drm/i915/i915_drv.h      |  10 +++-
 drivers/gpu/drm/i915/i915_reg.h      |   4 ++
 drivers/gpu/drm/i915/intel_display.c | 113 +++++++++++++++++++++++++++++------
 include/drm/drm_pciids.h             |   2 +
 5 files changed, 128 insertions(+), 22 deletions(-)

(limited to 'include')

diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 4373adb2119a..9d9490e22e07 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -26,6 +26,10 @@
 #define PCI_DEVICE_ID_INTEL_82965GME_IG     0x2A12
 #define PCI_DEVICE_ID_INTEL_82945GME_HB     0x27AC
 #define PCI_DEVICE_ID_INTEL_82945GME_IG     0x27AE
+#define PCI_DEVICE_ID_INTEL_IGDGM_HB        0xA010
+#define PCI_DEVICE_ID_INTEL_IGDGM_IG        0xA011
+#define PCI_DEVICE_ID_INTEL_IGDG_HB         0xA000
+#define PCI_DEVICE_ID_INTEL_IGDG_IG         0xA001
 #define PCI_DEVICE_ID_INTEL_G33_HB          0x29C0
 #define PCI_DEVICE_ID_INTEL_G33_IG          0x29C2
 #define PCI_DEVICE_ID_INTEL_Q35_HB          0x29B0
@@ -60,7 +64,12 @@
 
 #define IS_G33 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G33_HB || \
 		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q35_HB || \
-		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q33_HB)
+		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q33_HB || \
+		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDGM_HB || \
+		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDG_HB)
+
+#define IS_IGD (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDGM_HB || \
+		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDG_HB)
 
 #define IS_G4X (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGD_E_HB || \
 		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q45_HB || \
@@ -510,7 +519,7 @@ static void intel_i830_init_gtt_entries(void)
 			size = 512;
 		}
 		size += 4; /* add in BIOS popup space */
-	} else if (IS_G33) {
+	} else if (IS_G33 && !IS_IGD) {
 	/* G33's GTT size defined in gmch_ctrl */
 		switch (gmch_ctrl & G33_PGETBL_SIZE_MASK) {
 		case G33_PGETBL_SIZE_1M:
@@ -526,7 +535,7 @@ static void intel_i830_init_gtt_entries(void)
 			size = 512;
 		}
 		size += 4;
-	} else if (IS_G4X) {
+	} else if (IS_G4X || IS_IGD) {
 		/* On 4 series hardware, GTT stolen is separate from graphics
 		 * stolen, ignore it in stolen gtt entries counting.  However,
 		 * 4KB of the stolen memory doesn't get mapped to the GTT.
@@ -2161,6 +2170,10 @@ static const struct intel_driver_description {
 		NULL, &intel_g33_driver },
 	{ PCI_DEVICE_ID_INTEL_Q33_HB, PCI_DEVICE_ID_INTEL_Q33_IG, 0, "Q33",
 		NULL, &intel_g33_driver },
+	{ PCI_DEVICE_ID_INTEL_IGDGM_HB, PCI_DEVICE_ID_INTEL_IGDGM_IG, 0, "IGD",
+		NULL, &intel_g33_driver },
+	{ PCI_DEVICE_ID_INTEL_IGDG_HB, PCI_DEVICE_ID_INTEL_IGDG_IG, 0, "IGD",
+		NULL, &intel_g33_driver },
 	{ PCI_DEVICE_ID_INTEL_GM45_HB, PCI_DEVICE_ID_INTEL_GM45_IG, 0,
 	    "Mobile Intel® GM45 Express", NULL, &intel_i965_driver },
 	{ PCI_DEVICE_ID_INTEL_IGD_E_HB, PCI_DEVICE_ID_INTEL_IGD_E_IG, 0,
@@ -2355,6 +2368,8 @@ static struct pci_device_id agp_intel_pci_table[] = {
 	ID(PCI_DEVICE_ID_INTEL_82945G_HB),
 	ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
 	ID(PCI_DEVICE_ID_INTEL_82945GME_HB),
+	ID(PCI_DEVICE_ID_INTEL_IGDGM_HB),
+	ID(PCI_DEVICE_ID_INTEL_IGDG_HB),
 	ID(PCI_DEVICE_ID_INTEL_82946GZ_HB),
 	ID(PCI_DEVICE_ID_INTEL_82G35_HB),
 	ID(PCI_DEVICE_ID_INTEL_82965Q_HB),
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 1c03b3e81ffa..c1685d0c704f 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -787,15 +787,21 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 		     (dev)->pci_device == 0x2E22 || \
 		     IS_GM45(dev))
 
+#define IS_IGDG(dev) ((dev)->pci_device == 0xa001)
+#define IS_IGDGM(dev) ((dev)->pci_device == 0xa011)
+#define IS_IGD(dev) (IS_IGDG(dev) || IS_IGDGM(dev))
+
 #define IS_G33(dev)    ((dev)->pci_device == 0x29C2 ||	\
 			(dev)->pci_device == 0x29B2 ||	\
-			(dev)->pci_device == 0x29D2)
+			(dev)->pci_device == 0x29D2 ||  \
+			(IS_IGD(dev)))
 
 #define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
 		      IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev))
 
 #define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
-			IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev))
+			IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev) || \
+			IS_IGD(dev))
 
 #define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev))
 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 90600d899413..6d567772679b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -359,6 +359,7 @@
 #define   DPLLB_LVDS_P2_CLOCK_DIV_7	(1 << 24) /* i915 */
 #define   DPLL_P2_CLOCK_DIV_MASK	0x03000000 /* i915 */
 #define   DPLL_FPA01_P1_POST_DIV_MASK	0x00ff0000 /* i915 */
+#define   DPLL_FPA01_P1_POST_DIV_MASK_IGD	0x00ff8000 /* IGD */
 
 #define I915_FIFO_UNDERRUN_STATUS		(1UL<<31)
 #define I915_CRC_ERROR_ENABLE			(1UL<<29)
@@ -435,6 +436,7 @@
  */
 #define   DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS	0x003f0000
 #define   DPLL_FPA01_P1_POST_DIV_SHIFT	16
+#define   DPLL_FPA01_P1_POST_DIV_SHIFT_IGD 15
 /* i830, required in DVO non-gang */
 #define   PLL_P2_DIVIDE_BY_4		(1 << 23)
 #define   PLL_P1_DIVIDE_BY_TWO		(1 << 21) /* i830 */
@@ -501,10 +503,12 @@
 #define FPB0	0x06048
 #define FPB1	0x0604c
 #define   FP_N_DIV_MASK		0x003f0000
+#define   FP_N_IGD_DIV_MASK	0x00ff0000
 #define   FP_N_DIV_SHIFT		16
 #define   FP_M1_DIV_MASK	0x00003f00
 #define   FP_M1_DIV_SHIFT		 8
 #define   FP_M2_DIV_MASK	0x0000003f
+#define   FP_M2_IGD_DIV_MASK	0x000000ff
 #define   FP_M2_DIV_SHIFT		 0
 #define DPLL_TEST	0x606c
 #define   DPLLB_TEST_SDVO_DIV_1		(0 << 22)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0d40b4b6979e..d9c50ff94d76 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -92,18 +92,32 @@ struct intel_limit {
 #define I9XX_DOT_MAX		 400000
 #define I9XX_VCO_MIN		1400000
 #define I9XX_VCO_MAX		2800000
+#define IGD_VCO_MIN		1700000
+#define IGD_VCO_MAX		3500000
 #define I9XX_N_MIN		      1
 #define I9XX_N_MAX		      6
+/* IGD's Ncounter is a ring counter */
+#define IGD_N_MIN		      3
+#define IGD_N_MAX		      6
 #define I9XX_M_MIN		     70
 #define I9XX_M_MAX		    120
+#define IGD_M_MIN		      2
+#define IGD_M_MAX		    256
 #define I9XX_M1_MIN		     10
 #define I9XX_M1_MAX		     22
 #define I9XX_M2_MIN		      5
 #define I9XX_M2_MAX		      9
+/* IGD M1 is reserved, and must be 0 */
+#define IGD_M1_MIN		      0
+#define IGD_M1_MAX		      0
+#define IGD_M2_MIN		      0
+#define IGD_M2_MAX		      254
 #define I9XX_P_SDVO_DAC_MIN	      5
 #define I9XX_P_SDVO_DAC_MAX	     80
 #define I9XX_P_LVDS_MIN		      7
 #define I9XX_P_LVDS_MAX		     98
+#define IGD_P_LVDS_MIN		      7
+#define IGD_P_LVDS_MAX		     112
 #define I9XX_P1_MIN		      1
 #define I9XX_P1_MAX		      8
 #define I9XX_P2_SDVO_DAC_SLOW		     10
@@ -121,6 +135,8 @@ struct intel_limit {
 #define INTEL_LIMIT_G4X_HDMI_DAC   5
 #define INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS   6
 #define INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS   7
+#define INTEL_LIMIT_IGD_SDVO_DAC    8
+#define INTEL_LIMIT_IGD_LVDS	    9
 
 /*The parameter is for SDVO on G4x platform*/
 #define G4X_DOT_SDVO_MIN           25000
@@ -340,6 +356,32 @@ static const intel_limit_t intel_limits[] = {
 	},
 	.find_pll = intel_g4x_find_best_PLL,
     },
+    { /* INTEL_LIMIT_IGD_SDVO */
+        .dot = { .min = I9XX_DOT_MIN,		.max = I9XX_DOT_MAX},
+        .vco = { .min = IGD_VCO_MIN,		.max = IGD_VCO_MAX },
+        .n   = { .min = IGD_N_MIN,		.max = IGD_N_MAX },
+        .m   = { .min = IGD_M_MIN,		.max = IGD_M_MAX },
+        .m1  = { .min = IGD_M1_MIN,		.max = IGD_M1_MAX },
+        .m2  = { .min = IGD_M2_MIN,		.max = IGD_M2_MAX },
+        .p   = { .min = I9XX_P_SDVO_DAC_MIN,    .max = I9XX_P_SDVO_DAC_MAX },
+        .p1  = { .min = I9XX_P1_MIN,		.max = I9XX_P1_MAX },
+	.p2  = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT,
+		 .p2_slow = I9XX_P2_SDVO_DAC_SLOW,	.p2_fast = I9XX_P2_SDVO_DAC_FAST },
+    },
+    { /* INTEL_LIMIT_IGD_LVDS */
+        .dot = { .min = I9XX_DOT_MIN,		.max = I9XX_DOT_MAX },
+        .vco = { .min = IGD_VCO_MIN,		.max = IGD_VCO_MAX },
+        .n   = { .min = IGD_N_MIN,		.max = IGD_N_MAX },
+        .m   = { .min = IGD_M_MIN,		.max = IGD_M_MAX },
+        .m1  = { .min = IGD_M1_MIN,		.max = IGD_M1_MAX },
+        .m2  = { .min = IGD_M2_MIN,		.max = IGD_M2_MAX },
+        .p   = { .min = IGD_P_LVDS_MIN,	.max = IGD_P_LVDS_MAX },
+        .p1  = { .min = I9XX_P1_MIN,		.max = I9XX_P1_MAX },
+	/* IGD only supports single-channel mode. */
+	.p2  = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT,
+		 .p2_slow = I9XX_P2_LVDS_SLOW,	.p2_fast = I9XX_P2_LVDS_SLOW },
+    },
+
 };
 
 static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
@@ -376,11 +418,16 @@ static const intel_limit_t *intel_limit(struct drm_crtc *crtc)
 
 	if (IS_G4X(dev)) {
 		limit = intel_g4x_limit(crtc);
-	} else if (IS_I9XX(dev)) {
+	} else if (IS_I9XX(dev) && !IS_IGD(dev)) {
 		if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
 			limit = &intel_limits[INTEL_LIMIT_I9XX_LVDS];
 		else
 			limit = &intel_limits[INTEL_LIMIT_I9XX_SDVO_DAC];
+	} else if (IS_IGD(dev)) {
+		if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
+			limit = &intel_limits[INTEL_LIMIT_IGD_LVDS];
+		else
+			limit = &intel_limits[INTEL_LIMIT_IGD_SDVO_DAC];
 	} else {
 		if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
 			limit = &intel_limits[INTEL_LIMIT_I8XX_LVDS];
@@ -390,8 +437,21 @@ static const intel_limit_t *intel_limit(struct drm_crtc *crtc)
 	return limit;
 }
 
-static void intel_clock(int refclk, intel_clock_t *clock)
+/* m1 is reserved as 0 in IGD, n is a ring counter */
+static void igd_clock(int refclk, intel_clock_t *clock)
 {
+	clock->m = clock->m2 + 2;
+	clock->p = clock->p1 * clock->p2;
+	clock->vco = refclk * clock->m / clock->n;
+	clock->dot = clock->vco / clock->p;
+}
+
+static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock)
+{
+	if (IS_IGD(dev)) {
+		igd_clock(refclk, clock);
+		return;
+	}
 	clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
 	clock->p = clock->p1 * clock->p2;
 	clock->vco = refclk * clock->m / (clock->n + 2);
@@ -427,6 +487,7 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type)
 static bool intel_PLL_is_valid(struct drm_crtc *crtc, intel_clock_t *clock)
 {
 	const intel_limit_t *limit = intel_limit (crtc);
+	struct drm_device *dev = crtc->dev;
 
 	if (clock->p1  < limit->p1.min  || limit->p1.max  < clock->p1)
 		INTELPllInvalid ("p1 out of range\n");
@@ -436,7 +497,7 @@ static bool intel_PLL_is_valid(struct drm_crtc *crtc, intel_clock_t *clock)
 		INTELPllInvalid ("m2 out of range\n");
 	if (clock->m1  < limit->m1.min  || limit->m1.max  < clock->m1)
 		INTELPllInvalid ("m1 out of range\n");
-	if (clock->m1 <= clock->m2)
+	if (clock->m1 <= clock->m2 && !IS_IGD(dev))
 		INTELPllInvalid ("m1 <= m2\n");
 	if (clock->m   < limit->m.min   || limit->m.max   < clock->m)
 		INTELPllInvalid ("m out of range\n");
@@ -486,15 +547,17 @@ intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
 	memset (best_clock, 0, sizeof (*best_clock));
 
 	for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
-		for (clock.m2 = limit->m2.min; clock.m2 < clock.m1 &&
-			     clock.m2 <= limit->m2.max; clock.m2++) {
+		for (clock.m2 = limit->m2.min; clock.m2 <= limit->m2.max; clock.m2++) {
+			/* m1 is always 0 in IGD */
+			if (clock.m2 >= clock.m1 && !IS_IGD(dev))
+				break;
 			for (clock.n = limit->n.min; clock.n <= limit->n.max;
 			     clock.n++) {
 				for (clock.p1 = limit->p1.min;
 				     clock.p1 <= limit->p1.max; clock.p1++) {
 					int this_err;
 
-					intel_clock(refclk, &clock);
+					intel_clock(dev, refclk, &clock);
 
 					if (!intel_PLL_is_valid(crtc, &clock))
 						continue;
@@ -551,7 +614,7 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
 				     clock.p1 >= limit->p1.min; clock.p1--) {
 					int this_err;
 
-					intel_clock(refclk, &clock);
+					intel_clock(dev, refclk, &clock);
 					if (!intel_PLL_is_valid(crtc, &clock))
 						continue;
 					this_err = abs(clock.dot - target) ;
@@ -888,7 +951,7 @@ static int intel_get_core_clock_speed(struct drm_device *dev)
 		return 400000;
 	else if (IS_I915G(dev))
 		return 333000;
-	else if (IS_I945GM(dev) || IS_845G(dev))
+	else if (IS_I945GM(dev) || IS_845G(dev) || IS_IGDGM(dev))
 		return 200000;
 	else if (IS_I915GM(dev)) {
 		u16 gcfgc = 0;
@@ -1043,7 +1106,10 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 		return -EINVAL;
 	}
 
-	fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
+	if (IS_IGD(dev))
+		fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2;
+	else
+		fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
 
 	dpll = DPLL_VGA_MODE_DIS;
 	if (IS_I9XX(dev)) {
@@ -1060,7 +1126,10 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 		}
 
 		/* compute bitmask from p1 value */
-		dpll |= (1 << (clock.p1 - 1)) << 16;
+		if (IS_IGD(dev))
+			dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_IGD;
+		else
+			dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
 		switch (clock.p2) {
 		case 5:
 			dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
@@ -1540,10 +1609,20 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
 		fp = I915_READ((pipe == 0) ? FPA1 : FPB1);
 
 	clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
-	clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
-	clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
+	if (IS_IGD(dev)) {
+		clock.n = ffs((fp & FP_N_IGD_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
+		clock.m2 = (fp & FP_M2_IGD_DIV_MASK) >> FP_M2_DIV_SHIFT;
+	} else {
+		clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
+		clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
+	}
+
 	if (IS_I9XX(dev)) {
-		clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
+		if (IS_IGD(dev))
+			clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_IGD) >>
+				DPLL_FPA01_P1_POST_DIV_SHIFT_IGD);
+		else
+			clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
 			       DPLL_FPA01_P1_POST_DIV_SHIFT);
 
 		switch (dpll & DPLL_MODE_MASK) {
@@ -1562,7 +1641,7 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
 		}
 
 		/* XXX: Handle the 100Mhz refclk */
-		intel_clock(96000, &clock);
+		intel_clock(dev, 96000, &clock);
 	} else {
 		bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
 
@@ -1574,9 +1653,9 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
 			if ((dpll & PLL_REF_INPUT_MASK) ==
 			    PLLB_REF_INPUT_SPREADSPECTRUMIN) {
 				/* XXX: might not be 66MHz */
-				intel_clock(66000, &clock);
+				intel_clock(dev, 66000, &clock);
 			} else
-				intel_clock(48000, &clock);
+				intel_clock(dev, 48000, &clock);
 		} else {
 			if (dpll & PLL_P1_DIVIDE_BY_TWO)
 				clock.p1 = 2;
@@ -1589,7 +1668,7 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
 			else
 				clock.p2 = 2;
 
-			intel_clock(48000, &clock);
+			intel_clock(dev, 48000, &clock);
 		}
 	}
 
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 5165f240aa68..76c4c8243038 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -418,4 +418,6 @@
 	{0x8086, 0x2e02, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
 	{0x8086, 0x2e12, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
 	{0x8086, 0x2e22, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+	{0x8086, 0xa001, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+	{0x8086, 0xa011, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
 	{0, 0, 0}
-- 
cgit v1.2.3


From cc0be3227df9146968311308a9d19db1469ce1db Mon Sep 17 00:00:00 2001
From: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Date: Fri, 27 Mar 2009 15:55:36 -0700
Subject: net: Add missing include into include/linux/netdevice.h

The inline function skb_gro_mac_header defined in include/linux/netdevice.h
makes use of page_address(). Depending on configuration options, the latter
is either defined as a macro or is declared as a function in another header
file, namely include/linux/mm.h. However, include/linux/netdevice.h does not
include include/linux/mm.h.

On MIPS, this has produced the following build error:

  CC      kernel/sysctl_check.o
In file included from include/linux/icmpv6.h:173,
                 from include/linux/ipv6.h:208,
                 from include/net/ip_vs.h:26,
                 from kernel/sysctl_check.c:6:
include/linux/netdevice.h: In function 'skb_gro_mac_header':
include/linux/netdevice.h:1132: error: implicit declaration of function
'page_address'
include/linux/netdevice.h:1133: warning: pointer/integer type mismatch
in conditional expression
make[1]: *** [kernel/sysctl_check.o] Error 1
make: *** [kernel] Error 2

The patch adds the missing include and fixes the build error.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index be3ebd7e8ce5..1b55952a17f6 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -32,6 +32,7 @@
 #ifdef __KERNEL__
 #include <linux/timer.h>
 #include <linux/delay.h>
+#include <linux/mm.h>
 #include <asm/atomic.h>
 #include <asm/cache.h>
 #include <asm/byteorder.h>
-- 
cgit v1.2.3


From 176be728ee7d32cfd33702d82c0733e51f66ab5b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 12 Mar 2009 23:49:28 +0100
Subject: mac80211: remove ieee80211_num_regular_queues

This inline is useless and actually makes the code _longer_
rather than shorter.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 5 -----
 net/mac80211/mlme.c    | 2 +-
 net/mac80211/tx.c      | 7 +++----
 3 files changed, 4 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 12a52efcd0d1..3bfc6c6c8c4a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1017,11 +1017,6 @@ static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr)
 	memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
 }
 
-static inline int ieee80211_num_regular_queues(struct ieee80211_hw *hw)
-{
-	return hw->queues;
-}
-
 static inline struct ieee80211_rate *
 ieee80211_get_tx_rate(const struct ieee80211_hw *hw,
 		      const struct ieee80211_tx_info *c)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 841b8450b3de..aaf7793583a7 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1834,7 +1834,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 	ifmgd->flags |= IEEE80211_STA_CREATE_IBSS |
 		IEEE80211_STA_AUTO_BSSID_SEL |
 		IEEE80211_STA_AUTO_CHANNEL_SEL;
-	if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4)
+	if (sdata->local->hw.queues >= 4)
 		ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
 }
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 457238a2f3fc..038460b0a48a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1666,8 +1666,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	}
 
 	/* receiver and we are QoS enabled, use a QoS type frame */
-	if (sta_flags & WLAN_STA_WME &&
-	    ieee80211_num_regular_queues(&local->hw) >= 4) {
+	if ((sta_flags & WLAN_STA_WME) && local->hw.queues >= 4) {
 		fc |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
 		hdrlen += 2;
 	}
@@ -1802,7 +1801,7 @@ void ieee80211_clear_tx_pending(struct ieee80211_local *local)
 	int i, j;
 	struct ieee80211_tx_stored_packet *store;
 
-	for (i = 0; i < ieee80211_num_regular_queues(&local->hw); i++) {
+	for (i = 0; i < local->hw.queues; i++) {
 		if (!test_bit(i, local->queues_pending))
 			continue;
 		store = &local->pending_packet[i];
@@ -1827,7 +1826,7 @@ void ieee80211_tx_pending(unsigned long data)
 	int i, ret;
 
 	netif_tx_lock_bh(dev);
-	for (i = 0; i < ieee80211_num_regular_queues(&local->hw); i++) {
+	for (i = 0; i < local->hw.queues; i++) {
 		/* Check that this queue is ok */
 		if (__netif_subqueue_stopped(local->mdev, i) &&
 		    !test_bit(i, local->queues_pending_run))
-- 
cgit v1.2.3


From 51b381479ff5bc9b8c49ce15fd8bc35c6b695ca4 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 12 Mar 2009 11:16:48 +0100
Subject: mac80211: reduce max number of queues

No hw/driver actually supports more than four queues right now,
and we allocate a number of things per queue which means we
waste a bit of memory. Reduce the maximum number to four to
accurately reflect what we do (and need for QoS). Even if we
had hardware supporting more queues we couldn't take advantage
of that right now anyway.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 3bfc6c6c8c4a..a38a82c785dd 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -97,7 +97,7 @@ struct ieee80211_ht_bss_info {
  *	for A-MPDU operation.
  */
 enum ieee80211_max_queues {
-	IEEE80211_MAX_QUEUES =		16,
+	IEEE80211_MAX_QUEUES =		4,
 	IEEE80211_MAX_AMPDU_QUEUES =	16,
 };
 
-- 
cgit v1.2.3


From aae89831df03e5282a8f5c0ee46432cfb677fc5c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 13 Mar 2009 12:52:10 +0100
Subject: wireless: radiotap updates

Radiotap was updated to include a "bad PLCP" flag and standardise
the "bad FCS" flag in the "flags" rather than "RX flags" field,
this patch updates Linux to that standard.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/libertas/radiotap.h | 10 ----------
 drivers/net/wireless/libertas/rx.c       | 12 ++----------
 include/net/ieee80211_radiotap.h         |  4 +++-
 net/mac80211/rx.c                        |  7 ++++---
 4 files changed, 9 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/libertas/radiotap.h b/drivers/net/wireless/libertas/radiotap.h
index f8eb9097ff0a..d16b26416e82 100644
--- a/drivers/net/wireless/libertas/radiotap.h
+++ b/drivers/net/wireless/libertas/radiotap.h
@@ -33,22 +33,12 @@ struct rx_radiotap_hdr {
 	struct ieee80211_radiotap_header hdr;
 	u8 flags;
 	u8 rate;
-	u16 chan_freq;
-	u16 chan_flags;
-	u8 antenna;
 	u8 antsignal;
-	u16 rx_flags;
-#if 0
-	u8 pad[IEEE80211_RADIOTAP_HDRLEN - 18];
-#endif
 } __attribute__ ((packed));
 
 #define RX_RADIOTAP_PRESENT (			\
 	(1 << IEEE80211_RADIOTAP_FLAGS) |	\
 	(1 << IEEE80211_RADIOTAP_RATE) |	\
-	(1 << IEEE80211_RADIOTAP_CHANNEL) |	\
-	(1 << IEEE80211_RADIOTAP_ANTENNA) |	\
 	(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |\
-	(1 << IEEE80211_RADIOTAP_RX_FLAGS) |	\
 	0)
 
diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
index 4f60948dde9c..63d7e19ce9bd 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -351,19 +351,11 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
 	radiotap_hdr.hdr.it_pad = 0;
 	radiotap_hdr.hdr.it_len = cpu_to_le16 (sizeof(struct rx_radiotap_hdr));
 	radiotap_hdr.hdr.it_present = cpu_to_le32 (RX_RADIOTAP_PRESENT);
-	/* unknown values */
-	radiotap_hdr.flags = 0;
-	radiotap_hdr.chan_freq = 0;
-	radiotap_hdr.chan_flags = 0;
-	radiotap_hdr.antenna = 0;
-	/* known values */
+	if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
+		radiotap_hdr.flags |= IEEE80211_RADIOTAP_F_BADFCS;
 	radiotap_hdr.rate = convert_mv_rate_to_radiotap(prxpd->rx_rate);
 	/* XXX must check no carryout */
 	radiotap_hdr.antsignal = prxpd->snr + prxpd->nf;
-	radiotap_hdr.rx_flags = 0;
-	if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
-		radiotap_hdr.rx_flags |= IEEE80211_RADIOTAP_F_RX_BADFCS;
-	//memset(radiotap_hdr.pad, 0x11, IEEE80211_RADIOTAP_HDRLEN - 18);
 
 	/* chop the rxpd */
 	skb_pull(skb, sizeof(struct rxpd));
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h
index 384698cb773a..23c3f3d97779 100644
--- a/include/net/ieee80211_radiotap.h
+++ b/include/net/ieee80211_radiotap.h
@@ -230,8 +230,10 @@ enum ieee80211_radiotap_type {
 						 * 802.11 header and payload
 						 * (to 32-bit boundary)
 						 */
+#define IEEE80211_RADIOTAP_F_BADFCS	0x40	/* bad FCS */
+
 /* For IEEE80211_RADIOTAP_RX_FLAGS */
-#define IEEE80211_RADIOTAP_F_RX_BADFCS	0x0001	/* frame failed crc check */
+#define IEEE80211_RADIOTAP_F_RX_BADPLCP	0x0002	/* frame has bad PLCP */
 
 /* For IEEE80211_RADIOTAP_TX_FLAGS */
 #define IEEE80211_RADIOTAP_F_TX_FAIL	0x0001	/* failed due to excessive
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 66f7ecf51b92..fcc0a5995791 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -142,6 +142,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	/* IEEE80211_RADIOTAP_FLAGS */
 	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
 		*pos |= IEEE80211_RADIOTAP_F_FCS;
+	if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
+		*pos |= IEEE80211_RADIOTAP_F_BADFCS;
 	if (status->flag & RX_FLAG_SHORTPRE)
 		*pos |= IEEE80211_RADIOTAP_F_SHORTPRE;
 	pos++;
@@ -204,9 +206,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	/* ensure 2 byte alignment for the 2 byte field as required */
 	if ((pos - (unsigned char *)rthdr) & 1)
 		pos++;
-	/* FIXME: when radiotap gets a 'bad PLCP' flag use it here */
-	if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
-		*(__le16 *)pos |= cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
+	if (status->flag & RX_FLAG_FAILED_PLCP_CRC)
+		*(__le16 *)pos |= cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADPLCP);
 	pos += 2;
 }
 
-- 
cgit v1.2.3


From 8fdc621dc743b87879ccf0177969864b09388d9a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 14 Mar 2009 09:34:01 +0100
Subject: nl80211: export supported commands

This makes nl80211 export the supported commands (command groups)
per wiphy so userspace has an idea what it can do -- this will be
required reading for userspace when we introduce auth/assoc /or/
connect for older hardware that cannot separate auth and assoc.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h |  6 ++++++
 net/wireless/nl80211.c  | 27 +++++++++++++++++++++++++++
 2 files changed, 33 insertions(+)

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index f33aa08dd9b3..3700d927e245 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -349,6 +349,10 @@ enum nl80211_commands {
  * @NL80211_ATTR_REG_TYPE: indicates the type of the regulatory domain currently
  * 	set. This can be one of the nl80211_reg_type (%NL80211_REGDOM_TYPE_*)
  *
+ * @NL80211_ATTR_SUPPORTED_COMMANDS: wiphy attribute that specifies
+ *	an array of command numbers (i.e. a mapping index to command number)
+ *	that the driver for the given wiphy supports.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -426,6 +430,8 @@ enum nl80211_attrs {
 	NL80211_ATTR_REG_INITIATOR,
 	NL80211_ATTR_REG_TYPE,
 
+	NL80211_ATTR_SUPPORTED_COMMANDS,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ab9d8f14e151..58ee1b1aff89 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -131,6 +131,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	struct nlattr *nl_freqs, *nl_freq;
 	struct nlattr *nl_rates, *nl_rate;
 	struct nlattr *nl_modes;
+	struct nlattr *nl_cmds;
 	enum ieee80211_band band;
 	struct ieee80211_channel *chan;
 	struct ieee80211_rate *rate;
@@ -242,6 +243,32 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	}
 	nla_nest_end(msg, nl_bands);
 
+	nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
+	if (!nl_cmds)
+		goto nla_put_failure;
+
+	i = 0;
+#define CMD(op, n)						\
+	 do {							\
+		if (dev->ops->op) {				\
+			i++;					\
+			NLA_PUT_U32(msg, i, NL80211_CMD_ ## n);	\
+		}						\
+	} while (0)
+
+	CMD(add_virtual_intf, NEW_INTERFACE);
+	CMD(change_virtual_intf, SET_INTERFACE);
+	CMD(add_key, NEW_KEY);
+	CMD(add_beacon, NEW_BEACON);
+	CMD(add_station, NEW_STATION);
+	CMD(add_mpath, NEW_MPATH);
+	CMD(set_mesh_params, SET_MESH_PARAMS);
+	CMD(change_bss, SET_BSS);
+	CMD(set_mgmt_extra_ie, SET_MGMT_EXTRA_IE);
+
+#undef CMD
+	nla_nest_end(msg, nl_cmds);
+
 	return genlmsg_end(msg, hdr);
 
  nla_put_failure:
-- 
cgit v1.2.3


From 3f46b29cd8caa35fcbc46e254a5abeee4e0e9e2f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 14 Mar 2009 19:10:51 +0100
Subject: ieee80211: document DS bit usage

I keep needing this because I'm too stupid to remember it.
Everybody else can probably remember, but who knows :)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/ieee80211.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'include')

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index b1bb817d1427..382387e75b89 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -18,6 +18,22 @@
 #include <linux/types.h>
 #include <asm/byteorder.h>
 
+/*
+ * DS bit usage
+ *
+ * TA = transmitter address
+ * RA = receiver address
+ * DA = destination address
+ * SA = source address
+ *
+ * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
+ * -----------------------------------------------------------------
+ *  0       0       DA      SA      BSSID   -       IBSS/DLS
+ *  0       1       DA      BSSID   SA      -       AP -> STA
+ *  1       0       BSSID   SA      DA      -       AP <- STA
+ *  1       1       RA      TA      DA      SA      unspecified (WDS)
+ */
+
 #define FCS_LEN 4
 
 #define IEEE80211_FCTL_VERS		0x0003
-- 
cgit v1.2.3


From b3a902850a8f5bc11a660051faae707f928d4bd6 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 18 Mar 2009 14:29:38 +0100
Subject: mac80211: kill IEEE80211_CONF_SHORT_SLOT_TIME

No drivers use it any more, so it can now be removed safely.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index a38a82c785dd..daa539a4287b 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -520,12 +520,6 @@ enum ieee80211_conf_flags {
 	IEEE80211_CONF_PS		= (1<<1),
 };
 
-/* XXX: remove all this once drivers stop trying to use it */
-static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
-{
-	return 0;
-}
-#define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME())
 
 /**
  * enum ieee80211_conf_changed - denotes which configuration changed
-- 
cgit v1.2.3


From 6039f6d23fe792d615da5449e9fa1c6b43caacf6 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Thu, 19 Mar 2009 13:39:21 +0200
Subject: nl80211: Event notifications for MLME events

Add new nl80211 event notifications (and a new multicast group, "mlme")
for informing user space about received and processed Authentication,
(Re)Association Response, Deauthentication, and Disassociation frames in
station and IBSS modes (i.e., MLME SAP interface primitives
MLME-AUTHENTICATE.confirm, MLME-ASSOCIATE.confirm,
MLME-REASSOCIATE.confirm, MLME-DEAUTHENTICATE.indicate, and
MLME-DISASSOCIATE.indication). The event data is encapsulated as the 802.11
management frame since we already have the frame in that format and it
includes all the needed information.

This is the initial step in providing MLME SAP interface for
authentication and association with nl80211. In other words, kernel code
will act as the MLME and a user space application can control it as the
SME.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h | 36 ++++++++++++++++++++++++-
 include/net/cfg80211.h  | 46 +++++++++++++++++++++++++++++++
 net/mac80211/mlme.c     |  9 +++++--
 net/wireless/Makefile   |  2 +-
 net/wireless/mlme.c     | 46 +++++++++++++++++++++++++++++++
 net/wireless/nl80211.c  | 72 +++++++++++++++++++++++++++++++++++++++++++++++++
 net/wireless/nl80211.h  | 12 +++++++++
 7 files changed, 219 insertions(+), 4 deletions(-)
 create mode 100644 net/wireless/mlme.c

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 3700d927e245..5ce68ae8314e 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -161,6 +161,25 @@
  * 	%NL80211_REG_TYPE_COUNTRY the alpha2 to which we have moved on
  * 	to (%NL80211_ATTR_REG_ALPHA2).
  *
+ * @NL80211_CMD_AUTHENTICATE: authentication notification (on the "mlme"
+ *	multicast group). This event reports reception of an Authentication
+ *	frame in station and IBSS modes when the local MLME processed the
+ *	frame, i.e., it was for the local STA and was received in correct
+ *	state. This is similar to MLME-AUTHENTICATE.confirm primitive in the
+ *	MLME SAP interface (kernel providing MLME, userspace SME). The
+ *	included NL80211_ATTR_FRAME attribute contains the management frame
+ *	(including both the header and frame body, but not FCS).
+ * @NL80211_CMD_ASSOCIATE: association notification; like
+ *	NL80211_CMD_AUTHENTICATE but for Association Response and Reassociation
+ *	Response frames (similar to MLME-ASSOCIATE.confirm or
+ *	MLME-REASSOCIATE.confirm primitives).
+ * @NL80211_CMD_DEAUTHENTICATE: deauthentication notification; like
+ *	NL80211_CMD_AUTHENTICATE but for Deauthentication frames (similar to
+ *	MLME-DEAUTHENTICATE.indication primitive).
+ * @NL80211_CMD_DISASSOCIATE: disassociation notification; like
+ *	NL80211_CMD_AUTHENTICATE but for Disassociation frames (similar to
+ *	MLME-DISASSOCIATE.indication primitive).
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -217,6 +236,11 @@ enum nl80211_commands {
 
 	NL80211_CMD_REG_CHANGE,
 
+	NL80211_CMD_AUTHENTICATE,
+	NL80211_CMD_ASSOCIATE,
+	NL80211_CMD_DEAUTHENTICATE,
+	NL80211_CMD_DISASSOCIATE,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -230,8 +254,11 @@ enum nl80211_commands {
  */
 #define NL80211_CMD_SET_BSS NL80211_CMD_SET_BSS
 #define NL80211_CMD_SET_MGMT_EXTRA_IE NL80211_CMD_SET_MGMT_EXTRA_IE
-
 #define NL80211_CMD_REG_CHANGE NL80211_CMD_REG_CHANGE
+#define NL80211_CMD_AUTHENTICATE NL80211_CMD_AUTHENTICATE
+#define NL80211_CMD_ASSOCIATE NL80211_CMD_ASSOCIATE
+#define NL80211_CMD_DEAUTHENTICATE NL80211_CMD_DEAUTHENTICATE
+#define NL80211_CMD_DISASSOCIATE NL80211_CMD_DISASSOCIATE
 
 /**
  * enum nl80211_attrs - nl80211 netlink attributes
@@ -353,6 +380,10 @@ enum nl80211_commands {
  *	an array of command numbers (i.e. a mapping index to command number)
  *	that the driver for the given wiphy supports.
  *
+ * @NL80211_ATTR_FRAME: frame data (binary attribute), including frame header
+ *	and body, but not FCS; used, e.g., with NL80211_CMD_AUTHENTICATE and
+ *	NL80211_CMD_ASSOCIATE events
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -432,6 +463,8 @@ enum nl80211_attrs {
 
 	NL80211_ATTR_SUPPORTED_COMMANDS,
 
+	NL80211_ATTR_FRAME,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -451,6 +484,7 @@ enum nl80211_attrs {
 #define NL80211_ATTR_IE NL80211_ATTR_IE
 #define NL80211_ATTR_REG_INITIATOR NL80211_ATTR_REG_INITIATOR
 #define NL80211_ATTR_REG_TYPE NL80211_ATTR_REG_TYPE
+#define NL80211_ATTR_FRAME NL80211_ATTR_FRAME
 
 #define NL80211_MAX_SUPP_RATES			32
 #define NL80211_MAX_SUPP_REG_RULES		32
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 50f3fd9ff524..ad44016021b1 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -807,4 +807,50 @@ void cfg80211_put_bss(struct cfg80211_bss *bss);
  */
 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
 
+/**
+ * cfg80211_send_rx_auth - notification of processed authentication
+ * @dev: network device
+ * @buf: authentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever an authentication has been processed in
+ * station mode.
+ */
+void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * cfg80211_send_rx_assoc - notification of processed association
+ * @dev: network device
+ * @buf: (re)association response frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever a (re)association response has been
+ * processed in station mode.
+ */
+void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * cfg80211_send_rx_deauth - notification of processed deauthentication
+ * @dev: network device
+ * @buf: deauthentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever deauthentication has been processed in
+ * station mode.
+ */
+void cfg80211_send_rx_deauth(struct net_device *dev, const u8 *buf,
+			     size_t len);
+
+/**
+ * cfg80211_send_rx_disassoc - notification of processed disassociation
+ * @dev: network device
+ * @buf: disassociation response frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever disassociation has been processed in
+ * station mode.
+ */
+void cfg80211_send_rx_disassoc(struct net_device *dev, const u8 *buf,
+			       size_t len);
+
 #endif /* __NET_CFG80211_H */
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1f49b63d8dd2..6dc7a61bc18b 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1085,11 +1085,13 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	case WLAN_AUTH_OPEN:
 	case WLAN_AUTH_LEAP:
 		ieee80211_auth_completed(sdata);
+		cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
 		break;
 	case WLAN_AUTH_SHARED_KEY:
-		if (ifmgd->auth_transaction == 4)
+		if (ifmgd->auth_transaction == 4) {
 			ieee80211_auth_completed(sdata);
-		else
+			cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
+		} else
 			ieee80211_auth_challenge(sdata, mgmt, len);
 		break;
 	}
@@ -1125,6 +1127,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, true, false, 0);
 	ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED;
+	cfg80211_send_rx_deauth(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1154,6 +1157,7 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	ieee80211_set_disassoc(sdata, false, false, reason_code);
+	cfg80211_send_rx_disassoc(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1370,6 +1374,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	ieee80211_set_associated(sdata, changed);
 
 	ieee80211_associated(sdata);
+	cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len);
 }
 
 
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index c157b4d8014b..6d1e7b27b752 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -5,7 +5,7 @@ obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
 obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
 obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
 
-cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o
+cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o mlme.o
 cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o
 
 ccflags-y += -D__CHECK_ENDIAN__
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
new file mode 100644
index 000000000000..bec5721b6f99
--- /dev/null
+++ b/net/wireless/mlme.c
@@ -0,0 +1,46 @@
+/*
+ * cfg80211 MLME SAP interface
+ *
+ * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/nl80211.h>
+#include <net/cfg80211.h>
+#include "core.h"
+#include "nl80211.h"
+
+void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	nl80211_send_rx_auth(rdev, dev, buf, len);
+}
+EXPORT_SYMBOL(cfg80211_send_rx_auth);
+
+void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	nl80211_send_rx_assoc(rdev, dev, buf, len);
+}
+EXPORT_SYMBOL(cfg80211_send_rx_assoc);
+
+void cfg80211_send_rx_deauth(struct net_device *dev, const u8 *buf, size_t len)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	nl80211_send_rx_deauth(rdev, dev, buf, len);
+}
+EXPORT_SYMBOL(cfg80211_send_rx_deauth);
+
+void cfg80211_send_rx_disassoc(struct net_device *dev, const u8 *buf,
+			       size_t len)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	nl80211_send_rx_disassoc(rdev, dev, buf, len);
+}
+EXPORT_SYMBOL(cfg80211_send_rx_disassoc);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index a3ecf8d73898..c034c2418cb3 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2830,6 +2830,9 @@ static struct genl_ops nl80211_ops[] = {
 		.dumpit = nl80211_dump_scan,
 	},
 };
+static struct genl_multicast_group nl80211_mlme_mcgrp = {
+	.name = "mlme",
+};
 
 /* multicast groups */
 static struct genl_multicast_group nl80211_config_mcgrp = {
@@ -2975,6 +2978,71 @@ nla_put_failure:
 	nlmsg_free(msg);
 }
 
+static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
+				    struct net_device *netdev,
+				    const u8 *buf, size_t len,
+				    enum nl80211_commands cmd)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+	NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
+
+	if (genlmsg_end(msg, hdr) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
+	return;
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+
+void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
+			  struct net_device *netdev, const u8 *buf, size_t len)
+{
+	nl80211_send_mlme_event(rdev, netdev, buf, len,
+				NL80211_CMD_AUTHENTICATE);
+}
+
+void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
+			   struct net_device *netdev, const u8 *buf,
+			   size_t len)
+{
+	nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE);
+}
+
+void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev,
+			    struct net_device *netdev, const u8 *buf,
+			    size_t len)
+{
+	nl80211_send_mlme_event(rdev, netdev, buf, len,
+				NL80211_CMD_DEAUTHENTICATE);
+}
+
+void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev,
+			      struct net_device *netdev, const u8 *buf,
+			      size_t len)
+{
+	nl80211_send_mlme_event(rdev, netdev, buf, len,
+				NL80211_CMD_DISASSOCIATE);
+}
+
 /* initialisation/exit functions */
 
 int nl80211_init(void)
@@ -3003,6 +3071,10 @@ int nl80211_init(void)
 	if (err)
 		goto err_out;
 
+	err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
+	if (err)
+		goto err_out;
+
 	return 0;
  err_out:
 	genl_unregister_family(&nl80211_fam);
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index 5b5fe1339de0..b77af4ab80be 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -11,5 +11,17 @@ extern void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 extern void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
 				      struct net_device *netdev);
 extern void nl80211_send_reg_change_event(struct regulatory_request *request);
+extern void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
+				 struct net_device *netdev,
+				 const u8 *buf, size_t len);
+extern void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
+				  struct net_device *netdev,
+				  const u8 *buf, size_t len);
+extern void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev,
+				   struct net_device *netdev,
+				   const u8 *buf, size_t len);
+extern void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev,
+				     struct net_device *netdev,
+				     const u8 *buf, size_t len);
 
 #endif /* __NET_WIRELESS_NL80211_H */
-- 
cgit v1.2.3


From 636a5d3625993c5ca59abc81794b9ded93cdb740 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Thu, 19 Mar 2009 13:39:22 +0200
Subject: nl80211: Add MLME primitives to support external SME

This patch adds new nl80211 commands to allow user space to request
authentication and association (and also deauthentication and
disassociation). The commands are structured to allow separate
authentication and association steps, i.e., the interface between
kernel and user space is similar to the MLME SAP interface in IEEE
802.11 standard and an user space application takes the role of the
SME.

The patch introduces MLME-AUTHENTICATE.request,
MLME-{,RE}ASSOCIATE.request, MLME-DEAUTHENTICATE.request, and
MLME-DISASSOCIATE.request primitives. The authentication and
association commands request the actual operations in two steps
(assuming the driver supports this; if not, separate authentication
step is skipped; this could end up being a separate "connect"
command).

The initial implementation for mac80211 uses the current
net/mac80211/mlme.c for actual sending and processing of management
frames and the new nl80211 commands will just stop the current state
machine from moving automatically from authentication to association.
Future cleanup may move more of the MLME operations into cfg80211.

The goal of this design is to provide more control of authentication and
association process to user space without having to move the full MLME
implementation. This should be enough to allow IEEE 802.11r FT protocol
and 802.11s SAE authentication to be implemented. Obviously, this will
also bring the extra benefit of not having to use WEXT for association
requests with mac80211. An example implementation of a user space SME
using the new nl80211 commands is available for wpa_supplicant.

This patch is enough to get IEEE 802.11r FT protocol working with
over-the-air mechanism (over-the-DS will need additional MLME
primitives for handling the FT Action frames).

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/ieee80211.h  |   1 +
 include/linux/nl80211.h    |  58 +++++++++--
 include/net/cfg80211.h     | 113 ++++++++++++++++++++
 net/mac80211/cfg.c         | 140 +++++++++++++++++++++++++
 net/mac80211/ieee80211_i.h |   7 +-
 net/mac80211/mlme.c        |  45 ++++++--
 net/mac80211/wext.c        |   3 +
 net/wireless/nl80211.c     | 255 +++++++++++++++++++++++++++++++++++++++++++++
 8 files changed, 601 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 382387e75b89..4b501b48ce86 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -867,6 +867,7 @@ struct ieee80211_ht_info {
 /* Authentication algorithms */
 #define WLAN_AUTH_OPEN 0
 #define WLAN_AUTH_SHARED_KEY 1
+#define WLAN_AUTH_FT 2
 #define WLAN_AUTH_LEAP 128
 
 #define WLAN_AUTH_CHALLENGE_LEN 128
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 5ce68ae8314e..9685eaab40a9 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -161,24 +161,37 @@
  * 	%NL80211_REG_TYPE_COUNTRY the alpha2 to which we have moved on
  * 	to (%NL80211_ATTR_REG_ALPHA2).
  *
- * @NL80211_CMD_AUTHENTICATE: authentication notification (on the "mlme"
- *	multicast group). This event reports reception of an Authentication
+ * @NL80211_CMD_AUTHENTICATE: authentication request and notification.
+ *	This command is used both as a command (request to authenticate) and
+ *	as an event on the "mlme" multicast group indicating completion of the
+ *	authentication process.
+ *	When used as a command, %NL80211_ATTR_IFINDEX is used to identify the
+ *	interface. %NL80211_ATTR_MAC is used to specify PeerSTAAddress (and
+ *	BSSID in case of station mode). %NL80211_ATTR_SSID is used to specify
+ *	the SSID (mainly for association, but is included in authentication
+ *	request, too, to help BSS selection. %NL80211_ATTR_WIPHY_FREQ is used
+ *	to specify the frequence of the channel in MHz. %NL80211_ATTR_AUTH_TYPE
+ *	is used to specify the authentication type. %NL80211_ATTR_IE is used to
+ *	define IEs (VendorSpecificInfo, but also including RSN IE and FT IEs)
+ *	to be added to the frame.
+ *	When used as an event, this reports reception of an Authentication
  *	frame in station and IBSS modes when the local MLME processed the
  *	frame, i.e., it was for the local STA and was received in correct
  *	state. This is similar to MLME-AUTHENTICATE.confirm primitive in the
  *	MLME SAP interface (kernel providing MLME, userspace SME). The
  *	included NL80211_ATTR_FRAME attribute contains the management frame
  *	(including both the header and frame body, but not FCS).
- * @NL80211_CMD_ASSOCIATE: association notification; like
- *	NL80211_CMD_AUTHENTICATE but for Association Response and Reassociation
- *	Response frames (similar to MLME-ASSOCIATE.confirm or
- *	MLME-REASSOCIATE.confirm primitives).
- * @NL80211_CMD_DEAUTHENTICATE: deauthentication notification; like
+ * @NL80211_CMD_ASSOCIATE: association request and notification; like
+ *	NL80211_CMD_AUTHENTICATE but for Association and Reassociation
+ *	(similar to MLME-ASSOCIATE.request, MLME-REASSOCIATE.request,
+ *	MLME-ASSOCIATE.confirm or MLME-REASSOCIATE.confirm primitives).
+ * @NL80211_CMD_DEAUTHENTICATE: deauthentication request and notification; like
  *	NL80211_CMD_AUTHENTICATE but for Deauthentication frames (similar to
- *	MLME-DEAUTHENTICATE.indication primitive).
- * @NL80211_CMD_DISASSOCIATE: disassociation notification; like
+ *	MLME-DEAUTHENTICATION.request and MLME-DEAUTHENTICATE.indication
+ *	primitives).
+ * @NL80211_CMD_DISASSOCIATE: disassociation request and notification; like
  *	NL80211_CMD_AUTHENTICATE but for Disassociation frames (similar to
- *	MLME-DISASSOCIATE.indication primitive).
+ *	MLME-DISASSOCIATE.request and MLME-DISASSOCIATE.indication primitives).
  *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
@@ -383,6 +396,11 @@ enum nl80211_commands {
  * @NL80211_ATTR_FRAME: frame data (binary attribute), including frame header
  *	and body, but not FCS; used, e.g., with NL80211_CMD_AUTHENTICATE and
  *	NL80211_CMD_ASSOCIATE events
+ * @NL80211_ATTR_SSID: SSID (binary attribute, 0..32 octets)
+ * @NL80211_ATTR_AUTH_TYPE: AuthenticationType, see &enum nl80211_auth_type,
+ *	represented as a u32
+ * @NL80211_ATTR_REASON_CODE: ReasonCode for %NL80211_CMD_DEAUTHENTICATE and
+ *	%NL80211_CMD_DISASSOCIATE, u16
  *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
@@ -464,6 +482,9 @@ enum nl80211_attrs {
 	NL80211_ATTR_SUPPORTED_COMMANDS,
 
 	NL80211_ATTR_FRAME,
+	NL80211_ATTR_SSID,
+	NL80211_ATTR_AUTH_TYPE,
+	NL80211_ATTR_REASON_CODE,
 
 	/* add attributes here, update the policy in nl80211.c */
 
@@ -485,6 +506,9 @@ enum nl80211_attrs {
 #define NL80211_ATTR_REG_INITIATOR NL80211_ATTR_REG_INITIATOR
 #define NL80211_ATTR_REG_TYPE NL80211_ATTR_REG_TYPE
 #define NL80211_ATTR_FRAME NL80211_ATTR_FRAME
+#define NL80211_ATTR_SSID NL80211_ATTR_SSID
+#define NL80211_ATTR_AUTH_TYPE NL80211_ATTR_AUTH_TYPE
+#define NL80211_ATTR_REASON_CODE NL80211_ATTR_REASON_CODE
 
 #define NL80211_MAX_SUPP_RATES			32
 #define NL80211_MAX_SUPP_REG_RULES		32
@@ -1018,4 +1042,18 @@ enum nl80211_bss {
 	NL80211_BSS_MAX = __NL80211_BSS_AFTER_LAST - 1
 };
 
+/**
+ * enum nl80211_auth_type - AuthenticationType
+ *
+ * @NL80211_AUTHTYPE_OPEN_SYSTEM: Open System authentication
+ * @NL80211_AUTHTYPE_SHARED_KEY: Shared Key authentication (WEP only)
+ * @NL80211_AUTHTYPE_FT: Fast BSS Transition (IEEE 802.11r)
+ * @NL80211_AUTHTYPE_NETWORK_EAP: Network EAP (some Cisco APs and mainly LEAP)
+ */
+enum nl80211_auth_type {
+	NL80211_AUTHTYPE_OPEN_SYSTEM,
+	NL80211_AUTHTYPE_SHARED_KEY,
+	NL80211_AUTHTYPE_FT,
+	NL80211_AUTHTYPE_NETWORK_EAP,
+};
 #endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index ad44016021b1..0da9a55881a1 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -578,6 +578,105 @@ struct cfg80211_bss {
 	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
 };
 
+/**
+ * struct cfg80211_auth_request - Authentication request data
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * authentication.
+ * NOTE: This structure will likely change when more code from mac80211 is
+ * moved into cfg80211 so that non-mac80211 drivers can benefit from it, too.
+ * Before using this in a driver that does not use mac80211, it would be better
+ * to check the status of that work and better yet, volunteer to work on it.
+ *
+ * @chan: The channel to use or %NULL if not specified (auto-select based on
+ *	scan results)
+ * @peer_addr: The address of the peer STA (AP BSSID in infrastructure case);
+ *	this field is required to be present; if the driver wants to help with
+ *	BSS selection, it should use (yet to be added) MLME event to allow user
+ *	space SME to be notified of roaming candidate, so that the SME can then
+ *	use the authentication request with the recommended BSSID and whatever
+ *	other data may be needed for authentication/association
+ * @ssid: SSID or %NULL if not yet available
+ * @ssid_len: Length of ssid in octets
+ * @auth_type: Authentication type (algorithm)
+ * @ie: Extra IEs to add to Authentication frame or %NULL
+ * @ie_len: Length of ie buffer in octets
+ */
+struct cfg80211_auth_request {
+	struct ieee80211_channel *chan;
+	u8 *peer_addr;
+	const u8 *ssid;
+	size_t ssid_len;
+	enum nl80211_auth_type auth_type;
+	const u8 *ie;
+	size_t ie_len;
+};
+
+/**
+ * struct cfg80211_assoc_request - (Re)Association request data
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * (re)association.
+ * NOTE: This structure will likely change when more code from mac80211 is
+ * moved into cfg80211 so that non-mac80211 drivers can benefit from it, too.
+ * Before using this in a driver that does not use mac80211, it would be better
+ * to check the status of that work and better yet, volunteer to work on it.
+ *
+ * @chan: The channel to use or %NULL if not specified (auto-select based on
+ *	scan results)
+ * @peer_addr: The address of the peer STA (AP BSSID); this field is required
+ *	to be present and the STA must be in State 2 (authenticated) with the
+ *	peer STA
+ * @ssid: SSID
+ * @ssid_len: Length of ssid in octets
+ * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
+ * @ie_len: Length of ie buffer in octets
+ */
+struct cfg80211_assoc_request {
+	struct ieee80211_channel *chan;
+	u8 *peer_addr;
+	const u8 *ssid;
+	size_t ssid_len;
+	const u8 *ie;
+	size_t ie_len;
+};
+
+/**
+ * struct cfg80211_deauth_request - Deauthentication request data
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * deauthentication.
+ *
+ * @peer_addr: The address of the peer STA (AP BSSID); this field is required
+ *	to be present and the STA must be authenticated with the peer STA
+ * @ie: Extra IEs to add to Deauthentication frame or %NULL
+ * @ie_len: Length of ie buffer in octets
+ */
+struct cfg80211_deauth_request {
+	u8 *peer_addr;
+	u16 reason_code;
+	const u8 *ie;
+	size_t ie_len;
+};
+
+/**
+ * struct cfg80211_disassoc_request - Disassociation request data
+ *
+ * This structure provides information needed to complete IEEE 802.11
+ * disassocation.
+ *
+ * @peer_addr: The address of the peer STA (AP BSSID); this field is required
+ *	to be present and the STA must be associated with the peer STA
+ * @ie: Extra IEs to add to Disassociation frame or %NULL
+ * @ie_len: Length of ie buffer in octets
+ */
+struct cfg80211_disassoc_request {
+	u8 *peer_addr;
+	u16 reason_code;
+	const u8 *ie;
+	size_t ie_len;
+};
+
 /**
  * struct cfg80211_ops - backend description for wireless configuration
  *
@@ -650,6 +749,11 @@ struct cfg80211_bss {
  *	the driver, and will be valid until passed to cfg80211_scan_done().
  *	For scan results, call cfg80211_inform_bss(); you can call this outside
  *	the scan/scan_done bracket too.
+ *
+ * @auth: Request to authenticate with the specified peer
+ * @assoc: Request to (re)associate with the specified peer
+ * @deauth: Request to deauthenticate from the specified peer
+ * @disassoc: Request to disassociate from the specified peer
  */
 struct cfg80211_ops {
 	int	(*suspend)(struct wiphy *wiphy);
@@ -730,6 +834,15 @@ struct cfg80211_ops {
 
 	int	(*scan)(struct wiphy *wiphy, struct net_device *dev,
 			struct cfg80211_scan_request *request);
+
+	int	(*auth)(struct wiphy *wiphy, struct net_device *dev,
+			struct cfg80211_auth_request *req);
+	int	(*assoc)(struct wiphy *wiphy, struct net_device *dev,
+			 struct cfg80211_assoc_request *req);
+	int	(*deauth)(struct wiphy *wiphy, struct net_device *dev,
+			  struct cfg80211_deauth_request *req);
+	int	(*disassoc)(struct wiphy *wiphy, struct net_device *dev,
+			    struct cfg80211_disassoc_request *req);
 };
 
 /* temporary wext handlers */
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 58693e52d458..223e536e8426 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1300,6 +1300,142 @@ static int ieee80211_scan(struct wiphy *wiphy,
 	return ieee80211_request_scan(sdata, req);
 }
 
+static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
+			  struct cfg80211_auth_request *req)
+{
+	struct ieee80211_sub_if_data *sdata;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	switch (req->auth_type) {
+	case NL80211_AUTHTYPE_OPEN_SYSTEM:
+		sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_OPEN;
+		break;
+	case NL80211_AUTHTYPE_SHARED_KEY:
+		sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_SHARED_KEY;
+		break;
+	case NL80211_AUTHTYPE_FT:
+		sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_FT;
+		break;
+	case NL80211_AUTHTYPE_NETWORK_EAP:
+		sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_LEAP;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	memcpy(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN);
+	sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+	sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET;
+
+	/* TODO: req->chan */
+	sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL;
+
+	if (req->ssid) {
+		sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET;
+		memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
+		sdata->u.mgd.ssid_len = req->ssid_len;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
+	}
+
+	kfree(sdata->u.mgd.sme_auth_ie);
+	sdata->u.mgd.sme_auth_ie = NULL;
+	sdata->u.mgd.sme_auth_ie_len = 0;
+	if (req->ie) {
+		sdata->u.mgd.sme_auth_ie = kmalloc(req->ie_len, GFP_KERNEL);
+		if (sdata->u.mgd.sme_auth_ie == NULL)
+			return -ENOMEM;
+		memcpy(sdata->u.mgd.sme_auth_ie, req->ie, req->ie_len);
+		sdata->u.mgd.sme_auth_ie_len = req->ie_len;
+	}
+
+	sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
+	sdata->u.mgd.state = IEEE80211_STA_MLME_DIRECT_PROBE;
+	ieee80211_sta_req_auth(sdata);
+	return 0;
+}
+
+static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
+			   struct cfg80211_assoc_request *req)
+{
+	struct ieee80211_sub_if_data *sdata;
+	int ret;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	if (memcmp(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN) != 0 ||
+	    !(sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED))
+		return -ENOLINK; /* not authenticated */
+
+	sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+	sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET;
+
+	/* TODO: req->chan */
+	sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL;
+
+	if (req->ssid) {
+		sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET;
+		memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
+		sdata->u.mgd.ssid_len = req->ssid_len;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
+	} else
+		sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
+
+	ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
+	if (ret)
+		return ret;
+
+	sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
+	sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE;
+	ieee80211_sta_req_auth(sdata);
+	return 0;
+}
+
+static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
+			    struct cfg80211_deauth_request *req)
+{
+	struct ieee80211_sub_if_data *sdata;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	/* TODO: req->ie */
+	return ieee80211_sta_deauthenticate(sdata, req->reason_code);
+}
+
+static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
+			      struct cfg80211_disassoc_request *req)
+{
+	struct ieee80211_sub_if_data *sdata;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	/* TODO: req->ie */
+	return ieee80211_sta_disassociate(sdata, req->reason_code);
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -1333,4 +1469,8 @@ struct cfg80211_ops mac80211_config_ops = {
 	.suspend = ieee80211_suspend,
 	.resume = ieee80211_resume,
 	.scan = ieee80211_scan,
+	.auth = ieee80211_auth,
+	.assoc = ieee80211_assoc,
+	.deauth = ieee80211_deauth,
+	.disassoc = ieee80211_disassoc,
 };
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index ad12c2a03a95..7b96d95f48b1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -256,6 +256,7 @@ struct mesh_preq_queue {
 #define IEEE80211_STA_TKIP_WEP_USED	BIT(14)
 #define IEEE80211_STA_CSA_RECEIVED	BIT(15)
 #define IEEE80211_STA_MFP_ENABLED	BIT(16)
+#define IEEE80211_STA_EXT_SME		BIT(17)
 /* flags for MLME request */
 #define IEEE80211_STA_REQ_SCAN 0
 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
@@ -266,6 +267,7 @@ struct mesh_preq_queue {
 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
+#define IEEE80211_AUTH_ALG_FT BIT(3)
 
 struct ieee80211_if_managed {
 	struct timer_list timer;
@@ -335,6 +337,9 @@ struct ieee80211_if_managed {
 	size_t ie_deauth_len;
 	u8 *ie_disassoc;
 	size_t ie_disassoc_len;
+
+	u8 *sme_auth_ie;
+	size_t sme_auth_ie_len;
 };
 
 enum ieee80211_ibss_flags {
@@ -970,7 +975,7 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
 		  struct sk_buff *skb,
 		  struct ieee80211_rx_status *rx_status);
 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
-			       char *ie, size_t len);
+			       const char *ie, size_t len);
 
 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
 void ieee80211_scan_failed(struct ieee80211_local *local);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 6dc7a61bc18b..d1bcc8438772 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -730,6 +730,8 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
+	u8 *ies;
+	size_t ies_len;
 
 	ifmgd->auth_tries++;
 	if (ifmgd->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
@@ -755,7 +757,14 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
 	printk(KERN_DEBUG "%s: authenticate with AP %pM\n",
 	       sdata->dev->name, ifmgd->bssid);
 
-	ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, NULL, 0,
+	if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
+		ies = ifmgd->sme_auth_ie;
+		ies_len = ifmgd->sme_auth_ie_len;
+	} else {
+		ies = NULL;
+		ies_len = 0;
+	}
+	ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, ies, ies_len,
 			    ifmgd->bssid, 0);
 	ifmgd->auth_transaction = 2;
 
@@ -870,7 +879,8 @@ static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata)
 	int wep_privacy;
 	int privacy_invoked;
 
-	if (!ifmgd || (ifmgd->flags & IEEE80211_STA_MIXED_CELL))
+	if (!ifmgd || (ifmgd->flags & (IEEE80211_STA_MIXED_CELL |
+				       IEEE80211_STA_EXT_SME)))
 		return 0;
 
 	bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
@@ -998,7 +1008,11 @@ static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata)
 
 	printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
 	ifmgd->flags |= IEEE80211_STA_AUTHENTICATED;
-	ieee80211_associate(sdata);
+	if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
+		/* Wait for SME to request association */
+		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+	} else
+		ieee80211_associate(sdata);
 }
 
 
@@ -1084,6 +1098,7 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	switch (ifmgd->auth_alg) {
 	case WLAN_AUTH_OPEN:
 	case WLAN_AUTH_LEAP:
+	case WLAN_AUTH_FT:
 		ieee80211_auth_completed(sdata);
 		cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
 		break;
@@ -1117,9 +1132,10 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 		printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n",
 				sdata->dev->name, reason_code);
 
-	if (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
-	    ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE ||
-	    ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
+	if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
+	    (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
+	     ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE ||
+	     ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)) {
 		ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
 		mod_timer(&ifmgd->timer, jiffies +
 				      IEEE80211_RETRY_AUTH_INTERVAL);
@@ -1150,7 +1166,8 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 		printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n",
 				sdata->dev->name, reason_code);
 
-	if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
+	if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
+	    ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
 		ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE;
 		mod_timer(&ifmgd->timer, jiffies +
 				      IEEE80211_RETRY_AUTH_INTERVAL);
@@ -1664,6 +1681,8 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata)
 		ifmgd->auth_alg = WLAN_AUTH_SHARED_KEY;
 	else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP)
 		ifmgd->auth_alg = WLAN_AUTH_LEAP;
+	else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_FT)
+		ifmgd->auth_alg = WLAN_AUTH_FT;
 	else
 		ifmgd->auth_alg = WLAN_AUTH_OPEN;
 	ifmgd->auth_transaction = -1;
@@ -1687,7 +1706,8 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata)
 	u16 capa_val = WLAN_CAPABILITY_ESS;
 	struct ieee80211_channel *chan = local->oper_channel;
 
-	if (ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+	if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
+	    ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL |
 			    IEEE80211_STA_AUTO_BSSID_SEL |
 			    IEEE80211_STA_AUTO_CHANNEL_SEL)) {
 		capa_mask |= WLAN_CAPABILITY_PRIVACY;
@@ -1884,7 +1904,11 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata)
 			ieee80211_set_disassoc(sdata, true, true,
 					       WLAN_REASON_DEAUTH_LEAVING);
 
-		set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
+		if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) ||
+		    ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE)
+			set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
+		else if (ifmgd->flags & IEEE80211_STA_EXT_SME)
+			set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
 		queue_work(local->hw.workqueue, &ifmgd->work);
 	}
 }
@@ -1953,7 +1977,8 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
 	return ieee80211_sta_commit(sdata);
 }
 
-int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len)
+int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
+			       const char *ie, size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index e55d2834764c..ce21d66b1023 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -137,6 +137,7 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 		if (ret)
 			return ret;
 		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
 	}
@@ -224,6 +225,7 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 		if (ret)
 			return ret;
 
+		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
 	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
@@ -287,6 +289,7 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
 		ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
 		if (ret)
 			return ret;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
 	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index c034c2418cb3..9e1318d1d4bb 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -111,6 +111,11 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
 			      .len = IEEE80211_MAX_DATA_LEN },
 	[NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
 	[NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
+
+	[NL80211_ATTR_SSID] = { .type = NLA_BINARY,
+				.len = IEEE80211_MAX_SSID_LEN },
+	[NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
+	[NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
 };
 
 /* message building helper */
@@ -265,6 +270,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	CMD(set_mesh_params, SET_MESH_PARAMS);
 	CMD(change_bss, SET_BSS);
 	CMD(set_mgmt_extra_ie, SET_MGMT_EXTRA_IE);
+	CMD(auth, AUTHENTICATE);
+	CMD(assoc, ASSOCIATE);
+	CMD(deauth, DEAUTHENTICATE);
+	CMD(disassoc, DISASSOCIATE);
 
 #undef CMD
 	nla_nest_end(msg, nl_cmds);
@@ -2646,6 +2655,228 @@ static int nl80211_dump_scan(struct sk_buff *skb,
 	return err;
 }
 
+static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	struct net_device *dev;
+	struct cfg80211_auth_request req;
+	struct wiphy *wiphy;
+	int err;
+
+	rtnl_lock();
+
+	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+	if (err)
+		goto unlock_rtnl;
+
+	if (!drv->ops->auth) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (!info->attrs[NL80211_ATTR_MAC]) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	wiphy = &drv->wiphy;
+	memset(&req, 0, sizeof(req));
+
+	req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+		req.chan = ieee80211_get_channel(
+			wiphy,
+			nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
+		if (!req.chan) {
+			err = -EINVAL;
+			goto out;
+		}
+	}
+
+	if (info->attrs[NL80211_ATTR_SSID]) {
+		req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
+		req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
+	}
+
+	if (info->attrs[NL80211_ATTR_IE]) {
+		req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	}
+
+	if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
+		req.auth_type =
+			nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
+	}
+
+	err = drv->ops->auth(&drv->wiphy, dev, &req);
+
+out:
+	cfg80211_put_dev(drv);
+	dev_put(dev);
+unlock_rtnl:
+	rtnl_unlock();
+	return err;
+}
+
+static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	struct net_device *dev;
+	struct cfg80211_assoc_request req;
+	struct wiphy *wiphy;
+	int err;
+
+	rtnl_lock();
+
+	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+	if (err)
+		goto unlock_rtnl;
+
+	if (!drv->ops->assoc) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (!info->attrs[NL80211_ATTR_MAC] ||
+	    !info->attrs[NL80211_ATTR_SSID]) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	wiphy = &drv->wiphy;
+	memset(&req, 0, sizeof(req));
+
+	req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+		req.chan = ieee80211_get_channel(
+			wiphy,
+			nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
+		if (!req.chan) {
+			err = -EINVAL;
+			goto out;
+		}
+	}
+
+	if (nla_len(info->attrs[NL80211_ATTR_SSID]) > IEEE80211_MAX_SSID_LEN) {
+		err = -EINVAL;
+		goto out;
+	}
+	req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
+	req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
+
+	if (info->attrs[NL80211_ATTR_IE]) {
+		req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	}
+
+	err = drv->ops->assoc(&drv->wiphy, dev, &req);
+
+out:
+	cfg80211_put_dev(drv);
+	dev_put(dev);
+unlock_rtnl:
+	rtnl_unlock();
+	return err;
+}
+
+static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	struct net_device *dev;
+	struct cfg80211_deauth_request req;
+	struct wiphy *wiphy;
+	int err;
+
+	rtnl_lock();
+
+	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+	if (err)
+		goto unlock_rtnl;
+
+	if (!drv->ops->deauth) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (!info->attrs[NL80211_ATTR_MAC]) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	wiphy = &drv->wiphy;
+	memset(&req, 0, sizeof(req));
+
+	req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+	if (info->attrs[NL80211_ATTR_REASON_CODE])
+		req.reason_code =
+			nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+
+	if (info->attrs[NL80211_ATTR_IE]) {
+		req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	}
+
+	err = drv->ops->deauth(&drv->wiphy, dev, &req);
+
+out:
+	cfg80211_put_dev(drv);
+	dev_put(dev);
+unlock_rtnl:
+	rtnl_unlock();
+	return err;
+}
+
+static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	struct net_device *dev;
+	struct cfg80211_disassoc_request req;
+	struct wiphy *wiphy;
+	int err;
+
+	rtnl_lock();
+
+	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+	if (err)
+		goto unlock_rtnl;
+
+	if (!drv->ops->disassoc) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (!info->attrs[NL80211_ATTR_MAC]) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	wiphy = &drv->wiphy;
+	memset(&req, 0, sizeof(req));
+
+	req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+	if (info->attrs[NL80211_ATTR_REASON_CODE])
+		req.reason_code =
+			nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+
+	if (info->attrs[NL80211_ATTR_IE]) {
+		req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	}
+
+	err = drv->ops->disassoc(&drv->wiphy, dev, &req);
+
+out:
+	cfg80211_put_dev(drv);
+	dev_put(dev);
+unlock_rtnl:
+	rtnl_unlock();
+	return err;
+}
+
 static struct genl_ops nl80211_ops[] = {
 	{
 		.cmd = NL80211_CMD_GET_WIPHY,
@@ -2829,6 +3060,30 @@ static struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.dumpit = nl80211_dump_scan,
 	},
+	{
+		.cmd = NL80211_CMD_AUTHENTICATE,
+		.doit = nl80211_authenticate,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NL80211_CMD_ASSOCIATE,
+		.doit = nl80211_associate,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NL80211_CMD_DEAUTHENTICATE,
+		.doit = nl80211_deauthenticate,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NL80211_CMD_DISASSOCIATE,
+		.doit = nl80211_disassociate,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
 };
 static struct genl_multicast_group nl80211_mlme_mcgrp = {
 	.name = "mlme",
-- 
cgit v1.2.3


From 65fc73ac4a310945dfeceac961726c2765ad2ec0 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Fri, 20 Mar 2009 21:21:16 +0200
Subject: nl80211: Remove NL80211_CMD_SET_MGMT_EXTRA_IE

The functionality that NL80211_CMD_SET_MGMT_EXTRA_IE provided can now
be achieved with cleaner design by adding IE(s) into
NL80211_CMD_TRIGGER_SCAN, NL80211_CMD_AUTHENTICATE,
NL80211_CMD_ASSOCIATE, NL80211_CMD_DEAUTHENTICATE, and
NL80211_CMD_DISASSOCIATE.

Since this is a very recently added command and there are no known (or
known planned) applications using NL80211_CMD_SET_MGMT_EXTRA_IE and
taken into account how much extra complexity it adds to the IE
processing we have now (and need to add in the future to fix IE order
in couple of frames), it looks like the best option is to just remove
the implementation of this command for now. The enum values themselves
are left to avoid changing the nl80211 command or attribute numbers.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h    |  8 ++++-
 include/net/cfg80211.h     | 26 --------------
 net/mac80211/cfg.c         | 86 ----------------------------------------------
 net/mac80211/ieee80211_i.h | 15 --------
 net/mac80211/iface.c       |  7 ----
 net/mac80211/mlme.c        | 36 ++-----------------
 net/mac80211/util.c        | 29 +++-------------
 net/wireless/nl80211.c     | 47 -------------------------
 8 files changed, 14 insertions(+), 240 deletions(-)

(limited to 'include')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 9685eaab40a9..cbe8ce3bf486 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -142,6 +142,12 @@
  *	%NL80211_ATTR_IE. If the command succeeds, the requested data will be
  *	added to all specified management frames generated by
  *	kernel/firmware/driver.
+ *	Note: This command has been removed and it is only reserved at this
+ *	point to avoid re-using existing command number. The functionality this
+ *	command was planned for has been provided with cleaner design with the
+ *	option to specify additional IEs in NL80211_CMD_TRIGGER_SCAN,
+ *	NL80211_CMD_AUTHENTICATE, NL80211_CMD_ASSOCIATE,
+ *	NL80211_CMD_DEAUTHENTICATE, and NL80211_CMD_DISASSOCIATE.
  *
  * @NL80211_CMD_GET_SCAN: get scan results
  * @NL80211_CMD_TRIGGER_SCAN: trigger a new scan with the given parameters
@@ -238,7 +244,7 @@ enum nl80211_commands {
 	NL80211_CMD_GET_MESH_PARAMS,
 	NL80211_CMD_SET_MESH_PARAMS,
 
-	NL80211_CMD_SET_MGMT_EXTRA_IE,
+	NL80211_CMD_SET_MGMT_EXTRA_IE /* reserved; not used */,
 
 	NL80211_CMD_GET_REG,
 
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 0da9a55881a1..dca4a6b0461b 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -471,26 +471,6 @@ struct ieee80211_txq_params {
 	u8 aifs;
 };
 
-/**
- * struct mgmt_extra_ie_params - Extra management frame IE parameters
- *
- * Used to add extra IE(s) into management frames. If the driver cannot add the
- * requested data into all management frames of the specified subtype that are
- * generated in kernel or firmware/hardware, it must reject the configuration
- * call. The IE data buffer is added to the end of the specified management
- * frame body after all other IEs. This addition is not applied to frames that
- * are injected through a monitor interface.
- *
- * @subtype: Management frame subtype
- * @ies: IE data buffer or %NULL to remove previous data
- * @ies_len: Length of @ies in octets
- */
-struct mgmt_extra_ie_params {
-	u8 subtype;
-	u8 *ies;
-	int ies_len;
-};
-
 /* from net/wireless.h */
 struct wiphy;
 
@@ -743,8 +723,6 @@ struct cfg80211_disassoc_request {
  *
  * @set_channel: Set channel
  *
- * @set_mgmt_extra_ie: Set extra IE data for management frames
- *
  * @scan: Request to do a scan. If returning zero, the scan request is given
  *	the driver, and will be valid until passed to cfg80211_scan_done().
  *	For scan results, call cfg80211_inform_bss(); you can call this outside
@@ -828,10 +806,6 @@ struct cfg80211_ops {
 			       struct ieee80211_channel *chan,
 			       enum nl80211_channel_type channel_type);
 
-	int	(*set_mgmt_extra_ie)(struct wiphy *wiphy,
-				     struct net_device *dev,
-				     struct mgmt_extra_ie_params *params);
-
 	int	(*scan)(struct wiphy *wiphy, struct net_device *dev,
 			struct cfg80211_scan_request *request);
 
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 223e536e8426..f5c15c9a00ce 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1181,91 +1181,6 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
 	return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 }
 
-static int set_mgmt_extra_ie_sta(struct ieee80211_sub_if_data *sdata,
-				 u8 subtype, u8 *ies, size_t ies_len)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-
-	switch (subtype) {
-	case IEEE80211_STYPE_PROBE_REQ >> 4:
-		if (local->ops->hw_scan)
-			break;
-		kfree(ifmgd->ie_probereq);
-		ifmgd->ie_probereq = ies;
-		ifmgd->ie_probereq_len = ies_len;
-		return 0;
-	case IEEE80211_STYPE_PROBE_RESP >> 4:
-		kfree(ifmgd->ie_proberesp);
-		ifmgd->ie_proberesp = ies;
-		ifmgd->ie_proberesp_len = ies_len;
-		return 0;
-	case IEEE80211_STYPE_AUTH >> 4:
-		kfree(ifmgd->ie_auth);
-		ifmgd->ie_auth = ies;
-		ifmgd->ie_auth_len = ies_len;
-		return 0;
-	case IEEE80211_STYPE_ASSOC_REQ >> 4:
-		kfree(ifmgd->ie_assocreq);
-		ifmgd->ie_assocreq = ies;
-		ifmgd->ie_assocreq_len = ies_len;
-		return 0;
-	case IEEE80211_STYPE_REASSOC_REQ >> 4:
-		kfree(ifmgd->ie_reassocreq);
-		ifmgd->ie_reassocreq = ies;
-		ifmgd->ie_reassocreq_len = ies_len;
-		return 0;
-	case IEEE80211_STYPE_DEAUTH >> 4:
-		kfree(ifmgd->ie_deauth);
-		ifmgd->ie_deauth = ies;
-		ifmgd->ie_deauth_len = ies_len;
-		return 0;
-	case IEEE80211_STYPE_DISASSOC >> 4:
-		kfree(ifmgd->ie_disassoc);
-		ifmgd->ie_disassoc = ies;
-		ifmgd->ie_disassoc_len = ies_len;
-		return 0;
-	}
-
-	return -EOPNOTSUPP;
-}
-
-static int ieee80211_set_mgmt_extra_ie(struct wiphy *wiphy,
-				       struct net_device *dev,
-				       struct mgmt_extra_ie_params *params)
-{
-	struct ieee80211_sub_if_data *sdata;
-	u8 *ies;
-	size_t ies_len;
-	int ret = -EOPNOTSUPP;
-
-	if (params->ies) {
-		ies = kmemdup(params->ies, params->ies_len, GFP_KERNEL);
-		if (ies == NULL)
-			return -ENOMEM;
-		ies_len = params->ies_len;
-	} else {
-		ies = NULL;
-		ies_len = 0;
-	}
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_STATION:
-		ret = set_mgmt_extra_ie_sta(sdata, params->subtype,
-					    ies, ies_len);
-		break;
-	default:
-		ret = -EOPNOTSUPP;
-		break;
-	}
-
-	if (ret)
-		kfree(ies);
-	return ret;
-}
-
 #ifdef CONFIG_PM
 static int ieee80211_suspend(struct wiphy *wiphy)
 {
@@ -1465,7 +1380,6 @@ struct cfg80211_ops mac80211_config_ops = {
 	.change_bss = ieee80211_change_bss,
 	.set_txq_params = ieee80211_set_txq_params,
 	.set_channel = ieee80211_set_channel,
-	.set_mgmt_extra_ie = ieee80211_set_mgmt_extra_ie,
 	.suspend = ieee80211_suspend,
 	.resume = ieee80211_resume,
 	.scan = ieee80211_scan,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 547cfac218ee..f69e84ab9617 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -323,21 +323,6 @@ struct ieee80211_if_managed {
 	int wmm_last_param_set;
 
 	/* Extra IE data for management frames */
-	u8 *ie_probereq;
-	size_t ie_probereq_len;
-	u8 *ie_proberesp;
-	size_t ie_proberesp_len;
-	u8 *ie_auth;
-	size_t ie_auth_len;
-	u8 *ie_assocreq;
-	size_t ie_assocreq_len;
-	u8 *ie_reassocreq;
-	size_t ie_reassocreq_len;
-	u8 *ie_deauth;
-	size_t ie_deauth_len;
-	u8 *ie_disassoc;
-	size_t ie_disassoc_len;
-
 	u8 *sme_auth_ie;
 	size_t sme_auth_ie_len;
 };
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 6b56dc2208e7..34f4798a98f7 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -653,13 +653,6 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 		kfree(sdata->u.mgd.extra_ie);
 		kfree(sdata->u.mgd.assocreq_ies);
 		kfree(sdata->u.mgd.assocresp_ies);
-		kfree(sdata->u.mgd.ie_probereq);
-		kfree(sdata->u.mgd.ie_proberesp);
-		kfree(sdata->u.mgd.ie_auth);
-		kfree(sdata->u.mgd.ie_assocreq);
-		kfree(sdata->u.mgd.ie_reassocreq);
-		kfree(sdata->u.mgd.ie_deauth);
-		kfree(sdata->u.mgd.ie_disassoc);
 		kfree(sdata->u.mgd.sme_auth_ie);
 		break;
 	case NL80211_IFTYPE_WDS:
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index d1bcc8438772..b0808efcedf6 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -82,38 +82,23 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
 
 /* frame sending functions */
 
-static void add_extra_ies(struct sk_buff *skb, u8 *ies, size_t ies_len)
-{
-	if (ies)
-		memcpy(skb_put(skb, ies_len), ies, ies_len);
-}
-
 static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *ies, *ht_ie, *e_ies;
+	u8 *pos, *ies, *ht_ie;
 	int i, len, count, rates_len, supp_rates_len;
 	u16 capab;
 	struct ieee80211_bss *bss;
 	int wmm = 0;
 	struct ieee80211_supported_band *sband;
 	u32 rates = 0;
-	size_t e_ies_len;
-
-	if (ifmgd->flags & IEEE80211_STA_PREV_BSSID_SET) {
-		e_ies = sdata->u.mgd.ie_reassocreq;
-		e_ies_len = sdata->u.mgd.ie_reassocreq_len;
-	} else {
-		e_ies = sdata->u.mgd.ie_assocreq;
-		e_ies_len = sdata->u.mgd.ie_assocreq_len;
-	}
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
 			    sizeof(*mgmt) + 200 + ifmgd->extra_ie_len +
-			    ifmgd->ssid_len + e_ies_len);
+			    ifmgd->ssid_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
 		       "frame\n", sdata->dev->name);
@@ -304,8 +289,6 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 		memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
 	}
 
-	add_extra_ies(skb, e_ies, e_ies_len);
-
 	kfree(ifmgd->assocreq_ies);
 	ifmgd->assocreq_ies_len = (skb->data + skb->len) - ies;
 	ifmgd->assocreq_ies = kmalloc(ifmgd->assocreq_ies_len, GFP_KERNEL);
@@ -323,19 +306,8 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *ies;
-	size_t ies_len;
 
-	if (stype == IEEE80211_STYPE_DEAUTH) {
-		ies = sdata->u.mgd.ie_deauth;
-		ies_len = sdata->u.mgd.ie_deauth_len;
-	} else {
-		ies = sdata->u.mgd.ie_disassoc;
-		ies_len = sdata->u.mgd.ie_disassoc_len;
-	}
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) +
-			    ies_len);
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for "
 		       "deauth/disassoc frame\n", sdata->dev->name);
@@ -353,8 +325,6 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	/* u.deauth.reason_code == u.disassoc.reason_code */
 	mgmt->u.deauth.reason_code = cpu_to_le16(reason);
 
-	add_extra_ies(skb, ies, ies_len);
-
 	ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
 }
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index e0431a1d218b..444bb14c95e1 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -846,16 +846,9 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	const u8 *ie_auth = NULL;
-	int ie_auth_len = 0;
-
-	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-		ie_auth_len = sdata->u.mgd.ie_auth_len;
-		ie_auth = sdata->u.mgd.ie_auth;
-	}
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
-			    sizeof(*mgmt) + 6 + extra_len + ie_auth_len);
+			    sizeof(*mgmt) + 6 + extra_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
 		       "frame\n", sdata->dev->name);
@@ -877,8 +870,6 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 	mgmt->u.auth.status_code = cpu_to_le16(0);
 	if (extra)
 		memcpy(skb_put(skb, extra_len), extra, extra_len);
-	if (ie_auth)
-		memcpy(skb_put(skb, ie_auth_len), ie_auth, ie_auth_len);
 
 	ieee80211_tx_skb(sdata, skb, encrypt);
 }
@@ -891,20 +882,11 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 	struct ieee80211_supported_band *sband;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *supp_rates, *esupp_rates = NULL, *extra_preq_ie = NULL;
-	int i, extra_preq_ie_len = 0;
-
-	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_STATION:
-		extra_preq_ie_len = sdata->u.mgd.ie_probereq_len;
-		extra_preq_ie = sdata->u.mgd.ie_probereq;
-		break;
-	default:
-		break;
-	}
+	u8 *pos, *supp_rates, *esupp_rates = NULL;
+	int i;
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
-			    ie_len + extra_preq_ie_len);
+			    ie_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
 		       "request\n", sdata->dev->name);
@@ -953,9 +935,6 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 
 	if (ie)
 		memcpy(skb_put(skb, ie_len), ie, ie_len);
-	if (extra_preq_ie)
-		memcpy(skb_put(skb, extra_preq_ie_len), extra_preq_ie,
-		       extra_preq_ie_len);
 
 	ieee80211_tx_skb(sdata, skb, 0);
 }
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 9e1318d1d4bb..44c79972be57 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -269,7 +269,6 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	CMD(add_mpath, NEW_MPATH);
 	CMD(set_mesh_params, SET_MESH_PARAMS);
 	CMD(change_bss, SET_BSS);
-	CMD(set_mgmt_extra_ie, SET_MGMT_EXTRA_IE);
 	CMD(auth, AUTHENTICATE);
 	CMD(assoc, ASSOCIATE);
 	CMD(deauth, DEAUTHENTICATE);
@@ -2355,46 +2354,6 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
 	return -EINVAL;
 }
 
-static int nl80211_set_mgmt_extra_ie(struct sk_buff *skb,
-				     struct genl_info *info)
-{
-	struct cfg80211_registered_device *drv;
-	int err;
-	struct net_device *dev;
-	struct mgmt_extra_ie_params params;
-
-	memset(&params, 0, sizeof(params));
-
-	if (!info->attrs[NL80211_ATTR_MGMT_SUBTYPE])
-		return -EINVAL;
-	params.subtype = nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
-	if (params.subtype > 15)
-		return -EINVAL; /* FC Subtype field is 4 bits (0..15) */
-
-	if (info->attrs[NL80211_ATTR_IE]) {
-		params.ies = nla_data(info->attrs[NL80211_ATTR_IE]);
-		params.ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
-	}
-
-	rtnl_lock();
-
-	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
-	if (err)
-		goto out_rtnl;
-
-	if (drv->ops->set_mgmt_extra_ie)
-		err = drv->ops->set_mgmt_extra_ie(&drv->wiphy, dev, &params);
-	else
-		err = -EOPNOTSUPP;
-
-	cfg80211_put_dev(drv);
-	dev_put(dev);
- out_rtnl:
-	rtnl_unlock();
-
-	return err;
-}
-
 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *drv;
@@ -3043,12 +3002,6 @@ static struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_ADMIN_PERM,
 	},
-	{
-		.cmd = NL80211_CMD_SET_MGMT_EXTRA_IE,
-		.doit = nl80211_set_mgmt_extra_ie,
-		.policy = nl80211_policy,
-		.flags = GENL_ADMIN_PERM,
-	},
 	{
 		.cmd = NL80211_CMD_TRIGGER_SCAN,
 		.doit = nl80211_trigger_scan,
-- 
cgit v1.2.3


From af83debf5bb44257082d4489ac86123a0cadf6d3 Mon Sep 17 00:00:00 2001
From: Tulio Magno Quites Machado Filho <tuliom@gmail.com>
Date: Sun, 22 Mar 2009 01:41:13 +0100
Subject: ath5k: Support LED's on Acer Extensa 5620z

Add vendor ID for Quanta Microsystems and update the led table with the reported device.

Reported-by: Scott Barnes <nekoreeve@gmail.com>

Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath5k/led.c | 2 ++
 include/linux/pci_ids.h          | 2 ++
 2 files changed, 4 insertions(+)

(limited to 'include')

diff --git a/drivers/net/wireless/ath5k/led.c b/drivers/net/wireless/ath5k/led.c
index 0686e12738b3..19555fb79c9b 100644
--- a/drivers/net/wireless/ath5k/led.c
+++ b/drivers/net/wireless/ath5k/led.c
@@ -65,6 +65,8 @@ static const struct pci_device_id ath5k_led_devices[] = {
 	{ ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0422), ATH_LED(1, 1) },
 	/* E-machines E510 (tuliom@gmail.com) */
 	{ ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0428), ATH_LED(3, 0) },
+	/* Acer Extensa 5620z (nekoreeve@gmail.com) */
+	{ ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0105), ATH_LED(3, 0) },
 	{ }
 };
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 097f410edefa..05dfa7c4fb64 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2271,6 +2271,8 @@
 #define PCI_DEVICE_ID_KORENIX_JETCARDF0	0x1600
 #define PCI_DEVICE_ID_KORENIX_JETCARDF1	0x16ff
 
+#define PCI_VENDOR_ID_QMI		0x1a32
+
 #define PCI_VENDOR_ID_TEKRAM		0x1de1
 #define PCI_DEVICE_ID_TEKRAM_DC290	0xdc29
 
-- 
cgit v1.2.3


From 9050bdd8589c373e01e41ddbd9a192de2ff01ef0 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kalle.valo@nokia.com>
Date: Sun, 22 Mar 2009 21:57:21 +0200
Subject: mac80211: disable power save when scanning

When software scanning we need to disable power save so that all possible
probe responses and beacons are received. For hardware scanning assume that
hardware will take care of that and document that assumption.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 12 ++++++----
 net/mac80211/scan.c    | 64 ++++++++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 69 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index daa539a4287b..174dc1d7526b 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1307,11 +1307,13 @@ enum ieee80211_ampdu_mlme_action {
  *
  * @hw_scan: Ask the hardware to service the scan request, no need to start
  *	the scan state machine in stack. The scan must honour the channel
- *	configuration done by the regulatory agent in the wiphy's registered
- *	bands. When the scan finishes, ieee80211_scan_completed() must be
- *	called; note that it also must be called when the scan cannot finish
- *	because the hardware is turned off! Anything else is a bug!
- *	Returns a negative error code which will be seen in userspace.
+ *	configuration done by the regulatory agent in the wiphy's
+ *	registered bands. The hardware (or the driver) needs to make sure
+ *	that power save is disabled. When the scan finishes,
+ *	ieee80211_scan_completed() must be called; note that it also must
+ *	be called when the scan cannot finish because the hardware is
+ *	turned off! Anything else is a bug! Returns a negative error code
+ *	which will be seen in userspace.
  *
  * @sw_scan_start: Notifier function that is called just before a software scan
  *	is started. Can be NULL, if the driver doesn't need this notification.
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 46f35dc6accb..3bf9839f5916 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -214,6 +214,66 @@ void ieee80211_scan_failed(struct ieee80211_local *local)
 	local->scan_req = NULL;
 }
 
+/*
+ * inform AP that we will go to sleep so that it will buffer the frames
+ * while we scan
+ */
+static void ieee80211_scan_ps_enable(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	bool ps = false;
+
+	/* FIXME: what to do when local->pspolling is true? */
+
+	del_timer_sync(&local->dynamic_ps_timer);
+	cancel_work_sync(&local->dynamic_ps_enable_work);
+
+	if (local->hw.conf.flags & IEEE80211_CONF_PS) {
+		ps = true;
+		local->hw.conf.flags &= ~IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+	}
+
+	if (!ps || !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK))
+		/*
+		 * If power save was enabled, no need to send a nullfunc
+		 * frame because AP knows that we are sleeping. But if the
+		 * hardware is creating the nullfunc frame for power save
+		 * status (ie. IEEE80211_HW_PS_NULLFUNC_STACK is not
+		 * enabled) and power save was enabled, the firmware just
+		 * sent a null frame with power save disabled. So we need
+		 * to send a new nullfunc frame to inform the AP that we
+		 * are again sleeping.
+		 */
+		ieee80211_send_nullfunc(local, sdata, 1);
+}
+
+/* inform AP that we are awake again, unless power save is enabled */
+static void ieee80211_scan_ps_disable(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+
+	if (!local->powersave)
+		ieee80211_send_nullfunc(local, sdata, 0);
+	else {
+		/*
+		 * In !IEEE80211_HW_PS_NULLFUNC_STACK case the hardware
+		 * will send a nullfunc frame with the powersave bit set
+		 * even though the AP already knows that we are sleeping.
+		 * This could be avoided by sending a null frame with power
+		 * save bit disabled before enabling the power save, but
+		 * this doesn't gain anything.
+		 *
+		 * When IEEE80211_HW_PS_NULLFUNC_STACK is enabled, no need
+		 * to send a nullfunc frame because AP already knows that
+		 * we are sleeping, let's just enable power save mode in
+		 * hardware.
+		 */
+		local->hw.conf.flags |= IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+	}
+}
+
 void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
@@ -268,7 +328,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 		/* Tell AP we're back */
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
-				ieee80211_send_nullfunc(local, sdata, 0);
+				ieee80211_scan_ps_disable(sdata);
 				netif_tx_wake_all_queues(sdata->dev);
 			}
 		} else
@@ -441,7 +501,7 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
 				netif_tx_stop_all_queues(sdata->dev);
-				ieee80211_send_nullfunc(local, sdata, 1);
+				ieee80211_scan_ps_enable(sdata);
 			}
 		} else
 			netif_tx_stop_all_queues(sdata->dev);
-- 
cgit v1.2.3


From a08c1c1ac0c26229ca1ca45d554b209a56edc8be Mon Sep 17 00:00:00 2001
From: Kalle Valo <kalle.valo@nokia.com>
Date: Sun, 22 Mar 2009 21:57:28 +0200
Subject: cfg80211: add feature to hold bss

In beacon filtering there needs to be a way to not expire the BSS even
when no beacons are received. Add an interface to cfg80211 to hold
BSS and make sure that it's not expired.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h | 18 ++++++++++++++++++
 net/wireless/core.h    |  2 ++
 net/wireless/scan.c    | 27 ++++++++++++++++++++++++++-
 3 files changed, 46 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index dca4a6b0461b..5389afdc1297 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -539,6 +539,7 @@ enum cfg80211_signal_type {
  *	is no guarantee that these are well-formed!)
  * @len_information_elements: total length of the information elements
  * @signal: signal strength value (type depends on the wiphy's signal_type)
+ * @hold: BSS should not expire
  * @free_priv: function pointer to free private data
  * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
  */
@@ -940,4 +941,21 @@ void cfg80211_send_rx_deauth(struct net_device *dev, const u8 *buf,
 void cfg80211_send_rx_disassoc(struct net_device *dev, const u8 *buf,
 			       size_t len);
 
+/**
+ * cfg80211_hold_bss - exclude bss from expiration
+ * @bss: bss which should not expire
+ *
+ * In a case when the BSS is not updated but it shouldn't expire this
+ * function can be used to mark the BSS to be excluded from expiration.
+ */
+void cfg80211_hold_bss(struct cfg80211_bss *bss);
+
+/**
+ * cfg80211_unhold_bss - remove expiration exception from the BSS
+ * @bss: bss which can expire again
+ *
+ * This function marks the BSS to be expirable again.
+ */
+void cfg80211_unhold_bss(struct cfg80211_bss *bss);
+
 #endif /* __NET_CFG80211_H */
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 6acd483a61f8..97a6fd8b2b03 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -90,6 +90,8 @@ struct cfg80211_internal_bss {
 	struct rb_node rbn;
 	unsigned long ts;
 	struct kref ref;
+	bool hold;
+
 	/* must be last because of priv member */
 	struct cfg80211_bss pub;
 };
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 280dbcd02c15..2a00e362f5fe 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -80,7 +80,8 @@ void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
 	bool expired = false;
 
 	list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {
-		if (!time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
+		if (bss->hold ||
+		    !time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
 			continue;
 		list_del(&bss->list);
 		rb_erase(&bss->rbn, &dev->bss_tree);
@@ -471,6 +472,30 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
 }
 EXPORT_SYMBOL(cfg80211_unlink_bss);
 
+void cfg80211_hold_bss(struct cfg80211_bss *pub)
+{
+	struct cfg80211_internal_bss *bss;
+
+	if (!pub)
+		return;
+
+	bss = container_of(pub, struct cfg80211_internal_bss, pub);
+	bss->hold = true;
+}
+EXPORT_SYMBOL(cfg80211_hold_bss);
+
+void cfg80211_unhold_bss(struct cfg80211_bss *pub)
+{
+	struct cfg80211_internal_bss *bss;
+
+	if (!pub)
+		return;
+
+	bss = container_of(pub, struct cfg80211_internal_bss, pub);
+	bss->hold = false;
+}
+EXPORT_SYMBOL(cfg80211_unhold_bss);
+
 #ifdef CONFIG_WIRELESS_EXT
 int cfg80211_wext_siwscan(struct net_device *dev,
 			  struct iw_request_info *info,
-- 
cgit v1.2.3


From 04de83815993714a7ba2618f637fa1092a5f664b Mon Sep 17 00:00:00 2001
From: Kalle Valo <kalle.valo@nokia.com>
Date: Sun, 22 Mar 2009 21:57:35 +0200
Subject: mac80211: add beacon filtering support

Add IEEE80211_HW_BEACON_FILTERING flag so that driver inform that it supports
beacon filtering. Drivers need to call the new function
ieee80211_beacon_loss() to notify about beacon loss.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 Documentation/DocBook/mac80211.tmpl |  6 +++++
 include/net/mac80211.h              | 33 +++++++++++++++++++++++++
 net/mac80211/ieee80211_i.h          |  2 ++
 net/mac80211/iface.c                |  3 +++
 net/mac80211/mlme.c                 | 49 ++++++++++++++++++++++++++++++++++++-
 5 files changed, 92 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/Documentation/DocBook/mac80211.tmpl b/Documentation/DocBook/mac80211.tmpl
index 8af6d9626878..fbeaffc1dcc3 100644
--- a/Documentation/DocBook/mac80211.tmpl
+++ b/Documentation/DocBook/mac80211.tmpl
@@ -227,6 +227,12 @@ usage should require reading the full document.
 !Pinclude/net/mac80211.h Powersave support
     </chapter>
 
+    <chapter id="beacon-filter">
+      <title>Beacon filter support</title>
+!Pinclude/net/mac80211.h Beacon filter support
+!Finclude/net/mac80211.h ieee80211_beacon_loss
+    </chapter>
+
     <chapter id="qos">
       <title>Multiple queues and QoS support</title>
       <para>TBD</para>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 174dc1d7526b..d881ed8ad2c1 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -882,6 +882,10 @@ enum ieee80211_tkip_key_type {
  *
  * @IEEE80211_HW_MFP_CAPABLE:
  *	Hardware supports management frame protection (MFP, IEEE 802.11w).
+ *
+ * @IEEE80211_HW_BEACON_FILTER:
+ *	Hardware supports dropping of irrelevant beacon frames to
+ *	avoid waking up cpu.
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_RX_INCLUDES_FCS			= 1<<1,
@@ -897,6 +901,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_PS_NULLFUNC_STACK			= 1<<11,
 	IEEE80211_HW_SUPPORTS_DYNAMIC_PS		= 1<<12,
 	IEEE80211_HW_MFP_CAPABLE			= 1<<13,
+	IEEE80211_HW_BEACON_FILTER			= 1<<14,
 };
 
 /**
@@ -1120,6 +1125,24 @@ ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
  * value, or by the stack if all nullfunc handling is in the stack.
  */
 
+/**
+ * DOC: Beacon filter support
+ *
+ * Some hardware have beacon filter support to reduce host cpu wakeups
+ * which will reduce system power consumption. It usuallly works so that
+ * the firmware creates a checksum of the beacon but omits all constantly
+ * changing elements (TSF, TIM etc). Whenever the checksum changes the
+ * beacon is forwarded to the host, otherwise it will be just dropped. That
+ * way the host will only receive beacons where some relevant information
+ * (for example ERP protection or WMM settings) have changed.
+ *
+ * Beacon filter support is informed with %IEEE80211_HW_BEACON_FILTER flag.
+ * The driver needs to enable beacon filter support whenever power save is
+ * enabled, that is %IEEE80211_CONF_PS is set. When power save is enabled,
+ * the stack will not check for beacon miss at all and the driver needs to
+ * notify about complete loss of beacons with ieee80211_beacon_loss().
+ */
+
 /**
  * DOC: Frame filtering
  *
@@ -1970,6 +1993,16 @@ void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
 struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw,
 					 const u8 *addr);
 
+/**
+ * ieee80211_beacon_loss - inform hardware does not receive beacons
+ *
+ * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
+ *
+ * When beacon filtering is enabled with IEEE80211_HW_BEACON_FILTERING and
+ * IEEE80211_CONF_PS is set, the driver needs to inform whenever the
+ * hardware is not receiving beacons with this function.
+ */
+void ieee80211_beacon_loss(struct ieee80211_vif *vif);
 
 /* Rate control API */
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 8a617a7fc090..acba78e1a5ca 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -275,6 +275,7 @@ struct ieee80211_if_managed {
 	struct timer_list chswitch_timer;
 	struct work_struct work;
 	struct work_struct chswitch_work;
+	struct work_struct beacon_loss_work;
 
 	u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
 
@@ -1086,6 +1087,7 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 			     int powersave);
 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
 			     struct ieee80211_hdr *hdr);
+void ieee80211_beacon_loss_work(struct work_struct *work);
 
 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index dd2a276fa8ca..91e8e1bacaaa 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -477,6 +477,9 @@ static int ieee80211_stop(struct net_device *dev)
 		 */
 		cancel_work_sync(&sdata->u.mgd.work);
 		cancel_work_sync(&sdata->u.mgd.chswitch_work);
+
+		cancel_work_sync(&sdata->u.mgd.beacon_loss_work);
+
 		/*
 		 * When we get here, the interface is marked down.
 		 * Call synchronize_rcu() to wait for the RX path
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 8f30f4d19da0..7ecda9d59d8a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -610,6 +610,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		bss_info_changed |= ieee80211_handle_bss_capability(sdata,
 			bss->cbss.capability, bss->has_erp_value, bss->erp_value);
 
+		cfg80211_hold_bss(&bss->cbss);
+
 		ieee80211_rx_bss_put(local, bss);
 	}
 
@@ -751,6 +753,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_conf *conf = &local_to_hw(local)->conf;
+	struct ieee80211_bss *bss;
 	struct sta_info *sta;
 	u32 changed = 0, config_changed = 0;
 
@@ -774,6 +778,15 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_sta_tear_down_BA_sessions(sta);
 
+	bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
+				   conf->channel->center_freq,
+				   ifmgd->ssid, ifmgd->ssid_len);
+
+	if (bss) {
+		cfg80211_unhold_bss(&bss->cbss);
+		ieee80211_rx_bss_put(local, bss);
+	}
+
 	if (self_disconnected) {
 		if (deauth)
 			ieee80211_send_deauth_disassoc(sdata,
@@ -925,6 +938,33 @@ void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
 			  jiffies + IEEE80211_MONITORING_INTERVAL);
 }
 
+void ieee80211_beacon_loss_work(struct work_struct *work)
+{
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data,
+			     u.mgd.beacon_loss_work);
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
+	       "- sending probe request\n", sdata->dev->name,
+	       sdata->u.mgd.bssid);
+
+	ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+	ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
+				 ifmgd->ssid_len, NULL, 0);
+
+	mod_timer(&ifmgd->timer, jiffies + IEEE80211_MONITORING_INTERVAL);
+}
+
+void ieee80211_beacon_loss(struct ieee80211_vif *vif)
+{
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+	queue_work(sdata->local->hw.workqueue,
+		   &sdata->u.mgd.beacon_loss_work);
+}
+EXPORT_SYMBOL(ieee80211_beacon_loss);
+
 static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -959,7 +999,13 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 		goto unlock;
 	}
 
-	if (time_after(jiffies,
+	/*
+	 * Beacon filtering is only enabled with power save and then the
+	 * stack should not check for beacon loss.
+	 */
+	if (!((local->hw.flags & IEEE80211_HW_BEACON_FILTER) &&
+	      (local->hw.conf.flags & IEEE80211_CONF_PS)) &&
+	    time_after(jiffies,
 		       ifmgd->last_beacon + IEEE80211_MONITORING_INTERVAL)) {
 		printk(KERN_DEBUG "%s: beacon loss from AP %pM "
 		       "- sending probe request\n",
@@ -1869,6 +1915,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 	ifmgd = &sdata->u.mgd;
 	INIT_WORK(&ifmgd->work, ieee80211_sta_work);
 	INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work);
+	INIT_WORK(&ifmgd->beacon_loss_work, ieee80211_beacon_loss_work);
 	setup_timer(&ifmgd->timer, ieee80211_sta_timer,
 		    (unsigned long) sdata);
 	setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
-- 
cgit v1.2.3


From 2b874e83c970b45c328ab12239b066a43505454c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 23 Mar 2009 14:10:22 +0100
Subject: mac80211: rate control status only for controlled packets

This patch changes mac80211 to not notify the rate control algorithm's
tx_status() method when reporting status for a packet that didn't go
through the rate control algorithm's get_rate() method.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 4 ++++
 net/mac80211/rate.c    | 6 ++++--
 net/mac80211/rate.h    | 4 +++-
 3 files changed, 11 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index d881ed8ad2c1..6f3bc4cc53e5 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -245,6 +245,9 @@ struct ieee80211_bss_conf {
  * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be
  *	set by rate control algorithms to indicate probe rate, will
  *	be cleared for fragmented frames (except on the last fragment)
+ * @IEEE80211_TX_INTFL_RCALGO: mac80211 internal flag, do not test or
+ *	set this flag in the driver; indicates that the rate control
+ *	algorithm was used and should be notified of TX status
  */
 enum mac80211_tx_control_flags {
 	IEEE80211_TX_CTL_REQ_TX_STATUS		= BIT(0),
@@ -260,6 +263,7 @@ enum mac80211_tx_control_flags {
 	IEEE80211_TX_STAT_AMPDU			= BIT(10),
 	IEEE80211_TX_STAT_AMPDU_NO_BACK		= BIT(11),
 	IEEE80211_TX_CTL_RATE_CTRL_PROBE	= BIT(12),
+	IEEE80211_TX_INTFL_RCALGO		= BIT(13),
 };
 
 /**
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 3fa7ab285066..4641f00a1e5c 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -219,10 +219,12 @@ void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
 		info->control.rates[i].count = 1;
 	}
 
-	if (sta && sdata->force_unicast_rateidx > -1)
+	if (sta && sdata->force_unicast_rateidx > -1) {
 		info->control.rates[0].idx = sdata->force_unicast_rateidx;
-	else
+	} else {
 		ref->ops->get_rate(ref->priv, ista, priv_sta, txrc);
+		info->flags |= IEEE80211_TX_INTFL_RCALGO;
+	}
 
 	/*
 	 * try to enforce the maximum rate the user wanted
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index b9164c9a9563..2ab5ad9e71ce 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -44,8 +44,10 @@ static inline void rate_control_tx_status(struct ieee80211_local *local,
 	struct rate_control_ref *ref = local->rate_ctrl;
 	struct ieee80211_sta *ista = &sta->sta;
 	void *priv_sta = sta->rate_ctrl_priv;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
-	ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
+	if (likely(info->flags & IEEE80211_TX_INTFL_RCALGO))
+		ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
 }
 
 
-- 
cgit v1.2.3


From b1720231ca07dee3382980f3b25e6581bd2e54e9 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 23 Mar 2009 17:28:39 +0100
Subject: mac80211: unify and fix TX aggregation start

When TX aggregation becomes operational, we do a number of steps:
 1) print a debug message
 2) wake the virtual queue
 3) notify the driver

Unfortunately, 1) and 3) are only done if the driver is first to
reply to the aggregation request, it is, however, possible that the
remote station replies before the driver! Thus, unify the code for
this and call the new function ieee80211_agg_tx_operational in both
places where TX aggregation can become operational.

Additionally, rename the driver notification from
IEEE80211_AMPDU_TX_RESUME to IEEE80211_AMPDU_TX_OPERATIONAL.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c |  2 +-
 include/net/mac80211.h            |  4 +--
 net/mac80211/agg-tx.c             | 63 +++++++++++++++++----------------------
 3 files changed, 30 insertions(+), 39 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index c13e4e536341..13d4e6756c99 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -2730,7 +2730,7 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 
 		ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid);
 		break;
-	case IEEE80211_AMPDU_TX_RESUME:
+	case IEEE80211_AMPDU_TX_OPERATIONAL:
 		ath_tx_aggr_resume(sc, sta, tid);
 		break;
 	default:
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 6f3bc4cc53e5..07fe9875506e 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1236,14 +1236,14 @@ enum ieee80211_filter_flags {
  * @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation
  * @IEEE80211_AMPDU_TX_START: start Tx aggregation
  * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation
- * @IEEE80211_AMPDU_TX_RESUME: resume TX aggregation
+ * @IEEE80211_AMPDU_TX_OPERATIONAL: TX aggregation has become operational
  */
 enum ieee80211_ampdu_mlme_action {
 	IEEE80211_AMPDU_RX_START,
 	IEEE80211_AMPDU_RX_STOP,
 	IEEE80211_AMPDU_TX_START,
 	IEEE80211_AMPDU_TX_STOP,
-	IEEE80211_AMPDU_TX_RESUME,
+	IEEE80211_AMPDU_TX_OPERATIONAL,
 };
 
 /**
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index e5776ef1717a..fd718e2b29f7 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -404,6 +404,27 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 }
 EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
 
+static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
+					 struct sta_info *sta, u16 tid)
+{
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
+#endif
+
+	if (local->hw.ampdu_queues) {
+		/*
+		 * Wake up the A-MPDU queue, we stopped it earlier,
+		 * this will in turn wake the entire AC.
+		 */
+		ieee80211_wake_queue_by_reason(&local->hw,
+			local->hw.queues + sta->tid_to_tx_q[tid],
+			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+	}
+
+	local->ops->ampdu_action(&local->hw, IEEE80211_AMPDU_TX_OPERATIONAL,
+				 &sta->sta, tid, NULL);
+}
+
 void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
@@ -446,20 +467,8 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 
 	*state |= HT_ADDBA_DRV_READY_MSK;
 
-	if (*state == HT_AGG_STATE_OPERATIONAL) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
-#endif
-		if (hw->ampdu_queues) {
-			/*
-			 * Wake up this queue, we stopped it earlier,
-			 * this will in turn wake the entire AC.
-			 */
-			ieee80211_wake_queue_by_reason(hw,
-				hw->queues + sta->tid_to_tx_q[tid],
-				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
-		}
-	}
+	if (*state == HT_AGG_STATE_OPERATIONAL)
+		ieee80211_agg_tx_operational(local, sta, tid);
 
  out:
 	spin_unlock_bh(&sta->lock);
@@ -646,9 +655,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
 				  struct ieee80211_mgmt *mgmt,
 				  size_t len)
 {
-	struct ieee80211_hw *hw = &local->hw;
-	u16 capab;
-	u16 tid, start_seq_num;
+	u16 capab, tid;
 	u8 *state;
 
 	capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
@@ -682,26 +689,10 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
 
 		*state |= HT_ADDBA_RECEIVED_MSK;
 
-		if (hw->ampdu_queues && *state != curstate &&
-		    *state == HT_AGG_STATE_OPERATIONAL) {
-			/*
-			 * Wake up this queue, we stopped it earlier,
-			 * this will in turn wake the entire AC.
-			 */
-			ieee80211_wake_queue_by_reason(hw,
-				hw->queues + sta->tid_to_tx_q[tid],
-				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
-		}
-		sta->ampdu_mlme.addba_req_num[tid] = 0;
+		if (*state != curstate && *state == HT_AGG_STATE_OPERATIONAL)
+			ieee80211_agg_tx_operational(local, sta, tid);
 
-		if (local->ops->ampdu_action) {
-			(void)local->ops->ampdu_action(hw,
-					       IEEE80211_AMPDU_TX_RESUME,
-					       &sta->sta, tid, &start_seq_num);
-		}
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "Resuming TX aggregation for tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
+		sta->ampdu_mlme.addba_req_num[tid] = 0;
 	} else {
 		sta->ampdu_mlme.addba_req_num[tid]++;
 		___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR);
-- 
cgit v1.2.3


From cd8ffc800ce18e558335c4946b2217864fc16045 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 23 Mar 2009 17:28:41 +0100
Subject: mac80211: fix aggregation to not require queue stop

Instead of stopping the entire AC queue when enabling aggregation
(which was only done for hardware with aggregation queues) buffer
the packets for each station, and release them to the pending skb
queue once aggregation is turned on successfully.

We get a little more code, but it becomes conceptually simpler and
we can remove the entire virtual queue mechanism from mac80211 in
a follow-up patch.

This changes how mac80211 behaves towards drivers that support
aggregation but have no hardware queues -- those drivers will now
not be handed packets while the aggregation session is being
established, but only after it has been fully established.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h     |   4 ++
 net/mac80211/agg-tx.c      | 136 ++++++++++++++++++++++++++-----------------
 net/mac80211/ieee80211_i.h |   8 +++
 net/mac80211/main.c        |   2 +
 net/mac80211/sta_info.c    |   5 ++
 net/mac80211/sta_info.h    |   2 +
 net/mac80211/tx.c          | 142 ++++++++++++++++++++++++++++++++++++---------
 7 files changed, 221 insertions(+), 78 deletions(-)

(limited to 'include')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 07fe9875506e..841f7f804bb6 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -248,6 +248,9 @@ struct ieee80211_bss_conf {
  * @IEEE80211_TX_INTFL_RCALGO: mac80211 internal flag, do not test or
  *	set this flag in the driver; indicates that the rate control
  *	algorithm was used and should be notified of TX status
+ * @IEEE80211_TX_INTFL_NEED_TXPROCESSING: completely internal to mac80211,
+ *	used to indicate that a pending frame requires TX processing before
+ *	it can be sent out.
  */
 enum mac80211_tx_control_flags {
 	IEEE80211_TX_CTL_REQ_TX_STATUS		= BIT(0),
@@ -264,6 +267,7 @@ enum mac80211_tx_control_flags {
 	IEEE80211_TX_STAT_AMPDU_NO_BACK		= BIT(11),
 	IEEE80211_TX_CTL_RATE_CTRL_PROBE	= BIT(12),
 	IEEE80211_TX_INTFL_RCALGO		= BIT(13),
+	IEEE80211_TX_INTFL_NEED_TXPROCESSING	= BIT(14),
 };
 
 /**
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index fd718e2b29f7..64b839bfbf17 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -132,16 +132,6 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 	state = &sta->ampdu_mlme.tid_state_tx[tid];
 
 	if (local->hw.ampdu_queues) {
-		if (initiator) {
-			/*
-			 * Stop the AC queue to avoid issues where we send
-			 * unaggregated frames already before the delba.
-			 */
-			ieee80211_stop_queue_by_reason(&local->hw,
-				local->hw.queues + sta->tid_to_tx_q[tid],
-				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
-		}
-
 		/*
 		 * Pretend the driver woke the queue, just in case
 		 * it disabled it before the session was stopped.
@@ -158,6 +148,10 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 	/* HW shall not deny going back to legacy */
 	if (WARN_ON(ret)) {
 		*state = HT_AGG_STATE_OPERATIONAL;
+		/*
+		 * We may have pending packets get stuck in this case...
+		 * Not bothering with a workaround for now.
+		 */
 	}
 
 	return ret;
@@ -226,13 +220,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	       ra, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
-	if (hw->ampdu_queues && ieee80211_ac_from_tid(tid) == 0) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-		printk(KERN_DEBUG "rejecting on voice AC\n");
-#endif
-		return -EINVAL;
-	}
-
 	rcu_read_lock();
 
 	sta = sta_info_get(local, ra);
@@ -267,6 +254,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	}
 
 	spin_lock_bh(&sta->lock);
+	spin_lock(&local->ampdu_lock);
 
 	sdata = sta->sdata;
 
@@ -308,21 +296,19 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 			ret = -ENOSPC;
 			goto err_unlock_sta;
 		}
-
-		/*
-		 * If we successfully allocate the session, we can't have
-		 * anything going on on the queue this TID maps into, so
-		 * stop it for now. This is a "virtual" stop using the same
-		 * mechanism that drivers will use.
-		 *
-		 * XXX: queue up frames for this session in the sta_info
-		 *	struct instead to avoid hitting all other STAs.
-		 */
-		ieee80211_stop_queue_by_reason(
-			&local->hw, hw->queues + qn,
-			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
 	}
 
+	/*
+	 * While we're asking the driver about the aggregation,
+	 * stop the AC queue so that we don't have to worry
+	 * about frames that came in while we were doing that,
+	 * which would require us to put them to the AC pending
+	 * afterwards which just makes the code more complex.
+	 */
+	ieee80211_stop_queue_by_reason(
+		&local->hw, ieee80211_ac_from_tid(tid),
+		IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+
 	/* prepare A-MPDU MLME for Tx aggregation */
 	sta->ampdu_mlme.tid_tx[tid] =
 			kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
@@ -336,6 +322,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		goto err_return_queue;
 	}
 
+	skb_queue_head_init(&sta->ampdu_mlme.tid_tx[tid]->pending);
+
 	/* Tx timer */
 	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
 			sta_addba_resp_timer_expired;
@@ -362,6 +350,12 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	}
 	sta->tid_to_tx_q[tid] = qn;
 
+	/* Driver vetoed or OKed, but we can take packets again now */
+	ieee80211_wake_queue_by_reason(
+		&local->hw, ieee80211_ac_from_tid(tid),
+		IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+
+	spin_unlock(&local->ampdu_lock);
 	spin_unlock_bh(&sta->lock);
 
 	/* send an addBA request */
@@ -388,15 +382,16 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	sta->ampdu_mlme.tid_tx[tid] = NULL;
  err_return_queue:
 	if (qn >= 0) {
-		/* We failed, so start queue again right away. */
-		ieee80211_wake_queue_by_reason(hw, hw->queues + qn,
-			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
 		/* give queue back to pool */
 		spin_lock(&local->queue_stop_reason_lock);
 		local->ampdu_ac_queue[qn] = -1;
 		spin_unlock(&local->queue_stop_reason_lock);
 	}
+	ieee80211_wake_queue_by_reason(
+		&local->hw, ieee80211_ac_from_tid(tid),
+		IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
  err_unlock_sta:
+	spin_unlock(&local->ampdu_lock);
 	spin_unlock_bh(&sta->lock);
  unlock:
 	rcu_read_unlock();
@@ -404,6 +399,45 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 }
 EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
 
+/*
+ * splice packets from the STA's pending to the local pending,
+ * requires a call to ieee80211_agg_splice_finish and holding
+ * local->ampdu_lock across both calls.
+ */
+static void ieee80211_agg_splice_packets(struct ieee80211_local *local,
+					 struct sta_info *sta, u16 tid)
+{
+	unsigned long flags;
+	u16 queue = ieee80211_ac_from_tid(tid);
+
+	ieee80211_stop_queue_by_reason(
+		&local->hw, queue,
+		IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+
+	if (!skb_queue_empty(&sta->ampdu_mlme.tid_tx[tid]->pending)) {
+		spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+		/* mark queue as pending, it is stopped already */
+		__set_bit(IEEE80211_QUEUE_STOP_REASON_PENDING,
+			  &local->queue_stop_reasons[queue]);
+		/* copy over remaining packets */
+		skb_queue_splice_tail_init(
+			&sta->ampdu_mlme.tid_tx[tid]->pending,
+			&local->pending[queue]);
+		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+	}
+}
+
+static void ieee80211_agg_splice_finish(struct ieee80211_local *local,
+					struct sta_info *sta, u16 tid)
+{
+	u16 queue = ieee80211_ac_from_tid(tid);
+
+	ieee80211_wake_queue_by_reason(
+		&local->hw, queue,
+		IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+}
+
+/* caller must hold sta->lock */
 static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
 					 struct sta_info *sta, u16 tid)
 {
@@ -411,15 +445,16 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
 	printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
 #endif
 
-	if (local->hw.ampdu_queues) {
-		/*
-		 * Wake up the A-MPDU queue, we stopped it earlier,
-		 * this will in turn wake the entire AC.
-		 */
-		ieee80211_wake_queue_by_reason(&local->hw,
-			local->hw.queues + sta->tid_to_tx_q[tid],
-			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
-	}
+	spin_lock(&local->ampdu_lock);
+	ieee80211_agg_splice_packets(local, sta, tid);
+	/*
+	 * NB: we rely on sta->lock being taken in the TX
+	 * processing here when adding to the pending queue,
+	 * otherwise we could only change the state of the
+	 * session to OPERATIONAL _here_.
+	 */
+	ieee80211_agg_splice_finish(local, sta, tid);
+	spin_unlock(&local->ampdu_lock);
 
 	local->ops->ampdu_action(&local->hw, IEEE80211_AMPDU_TX_OPERATIONAL,
 				 &sta->sta, tid, NULL);
@@ -602,22 +637,19 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
 			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
 
 	spin_lock_bh(&sta->lock);
+	spin_lock(&local->ampdu_lock);
 
-	if (*state & HT_AGG_STATE_INITIATOR_MSK &&
-	    hw->ampdu_queues) {
-		/*
-		 * Wake up this queue, we stopped it earlier,
-		 * this will in turn wake the entire AC.
-		 */
-		ieee80211_wake_queue_by_reason(hw,
-			hw->queues + sta->tid_to_tx_q[tid],
-			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
-	}
+	ieee80211_agg_splice_packets(local, sta, tid);
 
 	*state = HT_AGG_STATE_IDLE;
+	/* from now on packets are no longer put onto sta->pending */
 	sta->ampdu_mlme.addba_req_num[tid] = 0;
 	kfree(sta->ampdu_mlme.tid_tx[tid]);
 	sta->ampdu_mlme.tid_tx[tid] = NULL;
+
+	ieee80211_agg_splice_finish(local, sta, tid);
+
+	spin_unlock(&local->ampdu_lock);
 	spin_unlock_bh(&sta->lock);
 
 	rcu_read_unlock();
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 6ce62e553dc2..32345b479adb 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -639,6 +639,14 @@ struct ieee80211_local {
 	struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
 	struct tasklet_struct tx_pending_tasklet;
 
+	/*
+	 * This lock is used to prevent concurrent A-MPDU
+	 * session start/stop processing, this thus also
+	 * synchronises the ->ampdu_action() callback to
+	 * drivers and limits it to one at a time.
+	 */
+	spinlock_t ampdu_lock;
+
 	/* number of interfaces with corresponding IFF_ flags */
 	atomic_t iff_allmultis, iff_promiscs;
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index a7430e98c531..756284e0bbd3 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -795,6 +795,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	skb_queue_head_init(&local->skb_queue);
 	skb_queue_head_init(&local->skb_queue_unreliable);
 
+	spin_lock_init(&local->ampdu_lock);
+
 	return local_to_hw(local);
 }
 EXPORT_SYMBOL(ieee80211_alloc_hw);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 4ba3c540fcf3..dd3593c1fd23 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -239,6 +239,11 @@ void sta_info_destroy(struct sta_info *sta)
 		tid_tx = sta->ampdu_mlme.tid_tx[i];
 		if (tid_tx) {
 			del_timer_sync(&tid_tx->addba_resp_timer);
+			/*
+			 * STA removed while aggregation session being
+			 * started? Bit odd, but purge frames anyway.
+			 */
+			skb_queue_purge(&tid_tx->pending);
 			kfree(tid_tx);
 		}
 	}
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 5b223b216e5a..18fd5d1a4422 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -73,11 +73,13 @@ enum ieee80211_sta_info_flags {
  * struct tid_ampdu_tx - TID aggregation information (Tx).
  *
  * @addba_resp_timer: timer for peer's response to addba request
+ * @pending: pending frames queue -- use sta's spinlock to protect
  * @ssn: Starting Sequence Number expected to be aggregated.
  * @dialog_token: dialog token for aggregation session
  */
 struct tid_ampdu_tx {
 	struct timer_list addba_resp_timer;
+	struct sk_buff_head pending;
 	u16 ssn;
 	u8 dialog_token;
 };
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index a0e00c6339ca..906ab785db40 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -984,9 +984,9 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 	struct ieee80211_hdr *hdr;
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-
 	int hdrlen, tid;
 	u8 *qc, *state;
+	bool queued = false;
 
 	memset(tx, 0, sizeof(*tx));
 	tx->skb = skb;
@@ -1013,20 +1013,53 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 		 */
 	}
 
+	/*
+	 * If this flag is set to true anywhere, and we get here,
+	 * we are doing the needed processing, so remove the flag
+	 * now.
+	 */
+	info->flags &= ~IEEE80211_TX_INTFL_NEED_TXPROCESSING;
+
 	hdr = (struct ieee80211_hdr *) skb->data;
 
 	tx->sta = sta_info_get(local, hdr->addr1);
 
-	if (tx->sta && ieee80211_is_data_qos(hdr->frame_control)) {
+	if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
+	    (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)) {
 		unsigned long flags;
+		struct tid_ampdu_tx *tid_tx;
+
 		qc = ieee80211_get_qos_ctl(hdr);
 		tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
 
 		spin_lock_irqsave(&tx->sta->lock, flags);
+		/*
+		 * XXX: This spinlock could be fairly expensive, but see the
+		 *	comment in agg-tx.c:ieee80211_agg_tx_operational().
+		 *	One way to solve this would be to do something RCU-like
+		 *	for managing the tid_tx struct and using atomic bitops
+		 *	for the actual state -- by introducing an actual
+		 *	'operational' bit that would be possible. It would
+		 *	require changing ieee80211_agg_tx_operational() to
+		 *	set that bit, and changing the way tid_tx is managed
+		 *	everywhere, including races between that bit and
+		 *	tid_tx going away (tid_tx being added can be easily
+		 *	committed to memory before the 'operational' bit).
+		 */
+		tid_tx = tx->sta->ampdu_mlme.tid_tx[tid];
 		state = &tx->sta->ampdu_mlme.tid_state_tx[tid];
-		if (*state == HT_AGG_STATE_OPERATIONAL)
+		if (*state == HT_AGG_STATE_OPERATIONAL) {
 			info->flags |= IEEE80211_TX_CTL_AMPDU;
+		} else if (*state != HT_AGG_STATE_IDLE) {
+			/* in progress */
+			queued = true;
+			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
+			__skb_queue_tail(&tid_tx->pending, skb);
+		}
 		spin_unlock_irqrestore(&tx->sta->lock, flags);
+
+		if (unlikely(queued))
+			return TX_QUEUED;
 	}
 
 	if (is_multicast_ether_addr(hdr->addr1)) {
@@ -1077,7 +1110,14 @@ static int ieee80211_tx_prepare(struct ieee80211_local *local,
 	}
 	if (unlikely(!dev))
 		return -ENODEV;
-	/* initialises tx with control */
+	/*
+	 * initialises tx with control
+	 *
+	 * return value is safe to ignore here because this function
+	 * can only be invoked for multicast frames
+	 *
+	 * XXX: clean up
+	 */
 	__ieee80211_tx_prepare(tx, skb, dev);
 	dev_put(dev);
 	return 0;
@@ -1188,7 +1228,8 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
 	return 0;
 }
 
-static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
+static void ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
+			 bool txpending)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct sta_info *sta;
@@ -1202,11 +1243,11 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
 
 	queue = skb_get_queue_mapping(skb);
 
-	WARN_ON(!skb_queue_empty(&local->pending[queue]));
+	WARN_ON(!txpending && !skb_queue_empty(&local->pending[queue]));
 
 	if (unlikely(skb->len < 10)) {
 		dev_kfree_skb(skb);
-		return 0;
+		return;
 	}
 
 	rcu_read_lock();
@@ -1214,10 +1255,13 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
 	/* initialises tx */
 	res_prepare = __ieee80211_tx_prepare(&tx, skb, dev);
 
-	if (res_prepare == TX_DROP) {
+	if (unlikely(res_prepare == TX_DROP)) {
 		dev_kfree_skb(skb);
 		rcu_read_unlock();
-		return 0;
+		return;
+	} else if (unlikely(res_prepare == TX_QUEUED)) {
+		rcu_read_unlock();
+		return;
 	}
 
 	sta = tx.sta;
@@ -1251,7 +1295,12 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
 			do {
 				next = skb->next;
 				skb->next = NULL;
-				skb_queue_tail(&local->pending[queue], skb);
+				if (unlikely(txpending))
+					skb_queue_head(&local->pending[queue],
+						       skb);
+				else
+					skb_queue_tail(&local->pending[queue],
+						       skb);
 			} while ((skb = next));
 
 			/*
@@ -1276,7 +1325,7 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
 	}
  out:
 	rcu_read_unlock();
-	return 0;
+	return;
 
  drop:
 	rcu_read_unlock();
@@ -1287,7 +1336,6 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
 		dev_kfree_skb(skb);
 		skb = next;
 	}
-	return 0;
 }
 
 /* device xmit handlers */
@@ -1346,7 +1394,6 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		FOUND_SDATA,
 		UNKNOWN_ADDRESS,
 	} monitor_iface = NOT_MONITOR;
-	int ret;
 
 	if (skb->iif)
 		odev = dev_get_by_index(&init_net, skb->iif);
@@ -1360,7 +1407,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		       "originating device\n", dev->name);
 #endif
 		dev_kfree_skb(skb);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
@@ -1389,7 +1436,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		else
 			if (mesh_nexthop_lookup(skb, osdata)) {
 				dev_put(odev);
-				return 0;
+				return NETDEV_TX_OK;
 			}
 		if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
 			IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh,
@@ -1451,7 +1498,7 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (ieee80211_skb_resize(osdata->local, skb, headroom, may_encrypt)) {
 		dev_kfree_skb(skb);
 		dev_put(odev);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	if (osdata->vif.type == NL80211_IFTYPE_AP_VLAN)
@@ -1460,10 +1507,11 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
 				      u.ap);
 	if (likely(monitor_iface != UNKNOWN_ADDRESS))
 		info->control.vif = &osdata->vif;
-	ret = ieee80211_tx(odev, skb);
+
+	ieee80211_tx(odev, skb, false);
 	dev_put(odev);
 
-	return ret;
+	return NETDEV_TX_OK;
 }
 
 int ieee80211_monitor_start_xmit(struct sk_buff *skb,
@@ -1827,6 +1875,54 @@ void ieee80211_clear_tx_pending(struct ieee80211_local *local)
 		skb_queue_purge(&local->pending[i]);
 }
 
+static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
+				     struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_sub_if_data *sdata;
+	struct sta_info *sta;
+	struct ieee80211_hdr *hdr;
+	struct net_device *dev;
+	int ret;
+	bool result = true;
+
+	/* does interface still exist? */
+	dev = dev_get_by_index(&init_net, skb->iif);
+	if (!dev) {
+		dev_kfree_skb(skb);
+		return true;
+	}
+
+	/* validate info->control.vif against skb->iif */
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+		sdata = container_of(sdata->bss,
+				     struct ieee80211_sub_if_data,
+				     u.ap);
+
+	if (unlikely(info->control.vif && info->control.vif != &sdata->vif)) {
+		dev_kfree_skb(skb);
+		result = true;
+		goto out;
+	}
+
+	if (info->flags & IEEE80211_TX_INTFL_NEED_TXPROCESSING) {
+		ieee80211_tx(dev, skb, true);
+	} else {
+		hdr = (struct ieee80211_hdr *)skb->data;
+		sta = sta_info_get(local, hdr->addr1);
+
+		ret = __ieee80211_tx(local, &skb, sta);
+		if (ret != IEEE80211_TX_OK)
+			result = false;
+	}
+
+ out:
+	dev_put(dev);
+
+	return result;
+}
+
 /*
  * Transmit all pending packets. Called from tasklet, locks master device
  * TX lock so that no new packets can come in.
@@ -1835,9 +1931,8 @@ void ieee80211_tx_pending(unsigned long data)
 {
 	struct ieee80211_local *local = (struct ieee80211_local *)data;
 	struct net_device *dev = local->mdev;
-	struct ieee80211_hdr *hdr;
 	unsigned long flags;
-	int i, ret;
+	int i;
 	bool next;
 
 	rcu_read_lock();
@@ -1868,13 +1963,8 @@ void ieee80211_tx_pending(unsigned long data)
 
 		while (!skb_queue_empty(&local->pending[i])) {
 			struct sk_buff *skb = skb_dequeue(&local->pending[i]);
-			struct sta_info *sta;
-
-			hdr = (struct ieee80211_hdr *)skb->data;
-			sta = sta_info_get(local, hdr->addr1);
 
-			ret = __ieee80211_tx(local, &skb, sta);
-			if (ret != IEEE80211_TX_OK) {
+			if (!ieee80211_tx_pending_skb(local, skb)) {
 				skb_queue_head(&local->pending[i], skb);
 				break;
 			}
-- 
cgit v1.2.3


From e4e72fb4de93e3d4047a4ee3f08778422e17ed0d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 23 Mar 2009 17:28:42 +0100
Subject: mac80211/iwlwifi: move virtual A-MDPU queue bookkeeping to iwlwifi

This patch removes all the virtual A-MPDU-queue bookkeeping from
mac80211. Curiously, iwlwifi already does its own bookkeeping, so
it doesn't require much changes except where it needs to handle
starting and stopping the queues in mac80211.

To handle the queue stop/wake properly, we rewrite the software
queue number for aggregation frames and internally to iwlwifi keep
track of the queues that map into the same AC queue, and only talk
to mac80211 about the AC queue. The implementation requires calling
two new functions, iwl_stop_queue and iwl_wake_queue instead of the
mac80211 counterparts.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Reinette Chattre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c     |  2 +-
 drivers/net/wireless/iwlwifi/iwl-4965.c     |  7 ++--
 drivers/net/wireless/iwlwifi/iwl-5000.c     |  7 ++--
 drivers/net/wireless/iwlwifi/iwl-core.c     |  3 --
 drivers/net/wireless/iwlwifi/iwl-dev.h      |  6 +++
 drivers/net/wireless/iwlwifi/iwl-helpers.h  | 52 ++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-tx.c       |  8 ++--
 drivers/net/wireless/iwlwifi/iwl3945-base.c |  2 +-
 drivers/net/wireless/mac80211_hwsim.c       |  1 -
 include/net/mac80211.h                      | 14 +------
 net/mac80211/agg-tx.c                       | 44 ++--------------------
 net/mac80211/ieee80211_i.h                  |  7 +---
 net/mac80211/main.c                         |  9 -----
 net/mac80211/sta_info.c                     | 12 ------
 net/mac80211/sta_info.h                     |  2 -
 net/mac80211/tx.c                           | 19 ----------
 net/mac80211/util.c                         | 58 ++++-------------------------
 17 files changed, 84 insertions(+), 169 deletions(-)

(limited to 'include')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index d03f5534afee..2399328e8de7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -293,7 +293,7 @@ static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv,
 	if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0) &&
 			(txq_id != IWL_CMD_QUEUE_NUM) &&
 			priv->mac80211_registered)
-		ieee80211_wake_queue(priv->hw, txq_id);
+		iwl_wake_queue(priv, txq_id);
 }
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index bd0140be774e..847a6220c5e6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2178,10 +2178,9 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
 			    (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
 			    (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) {
 				if (agg->state == IWL_AGG_OFF)
-					ieee80211_wake_queue(priv->hw, txq_id);
+					iwl_wake_queue(priv, txq_id);
 				else
-					ieee80211_wake_queue(priv->hw,
-							     txq->swq_id);
+					iwl_wake_queue(priv, txq->swq_id);
 			}
 		}
 	} else {
@@ -2205,7 +2204,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
 
 		if (priv->mac80211_registered &&
 		    (iwl_queue_space(&txq->q) > txq->q.low_mark))
-			ieee80211_wake_queue(priv->hw, txq_id);
+			iwl_wake_queue(priv, txq_id);
 	}
 
 	if (qc && likely(sta_id != IWL_INVALID_STATION))
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index a3d9a95a9b37..e5ca2511a81a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1295,10 +1295,9 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
 			    (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
 			    (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) {
 				if (agg->state == IWL_AGG_OFF)
-					ieee80211_wake_queue(priv->hw, txq_id);
+					iwl_wake_queue(priv, txq_id);
 				else
-					ieee80211_wake_queue(priv->hw,
-							     txq->swq_id);
+					iwl_wake_queue(priv, txq->swq_id);
 			}
 		}
 	} else {
@@ -1324,7 +1323,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
 
 		if (priv->mac80211_registered &&
 		    (iwl_queue_space(&txq->q) > txq->q.low_mark))
-			ieee80211_wake_queue(priv->hw, txq_id);
+			iwl_wake_queue(priv, txq_id);
 	}
 
 	if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 4b1298c2b0da..c54fb93e9d72 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1309,9 +1309,6 @@ int iwl_setup_mac(struct iwl_priv *priv)
 
 	/* Default value; 4 EDCA QOS priorities */
 	hw->queues = 4;
-	/* queues to support 11n aggregation */
-	if (priv->cfg->sku & IWL_SKU_N)
-		hw->ampdu_queues = priv->cfg->mod_params->num_of_ampdu_queues;
 
 	hw->conf.beacon_int = 100;
 	hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 0baae8022824..ec9a13846edd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -996,6 +996,12 @@ struct iwl_priv {
 	u8 key_mapping_key;
 	unsigned long ucode_key_table;
 
+	/* queue refcounts */
+#define IWL_MAX_HW_QUEUES	32
+	unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
+	/* for each AC */
+	atomic_t queue_stop_count[4];
+
 	/* Indication if ieee80211_ops->open has been called */
 	u8 is_open;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h
index fb64d297dd4e..a1328c3c81ae 100644
--- a/drivers/net/wireless/iwlwifi/iwl-helpers.h
+++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h
@@ -93,4 +93,56 @@ static inline int iwl_alloc_fw_desc(struct pci_dev *pci_dev,
 	return (desc->v_addr != NULL) ? 0 : -ENOMEM;
 }
 
+/*
+ * we have 8 bits used like this:
+ *
+ * 7 6 5 4 3 2 1 0
+ * | | | | | | | |
+ * | | | | | | +-+-------- AC queue (0-3)
+ * | | | | | |
+ * | +-+-+-+-+------------ HW A-MPDU queue
+ * |
+ * +---------------------- indicates agg queue
+ */
+static inline u8 iwl_virtual_agg_queue_num(u8 ac, u8 hwq)
+{
+	BUG_ON(ac > 3);   /* only have 2 bits */
+	BUG_ON(hwq > 31); /* only have 5 bits */
+
+	return 0x80 | (hwq << 2) | ac;
+}
+
+static inline void iwl_wake_queue(struct iwl_priv *priv, u8 queue)
+{
+	u8 ac = queue;
+	u8 hwq = queue;
+
+	if (queue & 0x80) {
+		ac = queue & 3;
+		hwq = (queue >> 2) & 0x1f;
+	}
+
+	if (test_and_clear_bit(hwq, priv->queue_stopped))
+		if (atomic_dec_return(&priv->queue_stop_count[ac]) <= 0)
+			ieee80211_wake_queue(priv->hw, ac);
+}
+
+static inline void iwl_stop_queue(struct iwl_priv *priv, u8 queue)
+{
+	u8 ac = queue;
+	u8 hwq = queue;
+
+	if (queue & 0x80) {
+		ac = queue & 3;
+		hwq = (queue >> 2) & 0x1f;
+	}
+
+	if (!test_and_set_bit(hwq, priv->queue_stopped))
+		if (atomic_inc_return(&priv->queue_stop_count[ac]) > 0)
+			ieee80211_stop_queue(priv->hw, ac);
+}
+
+#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
+#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue
+
 #endif				/* __iwl_helpers_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index b13862a598ef..1f117a49c569 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -763,8 +763,10 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		hdr->seq_ctrl |= cpu_to_le16(seq_number);
 		seq_number += 0x10;
 		/* aggregation is on for this <sta,tid> */
-		if (info->flags & IEEE80211_TX_CTL_AMPDU)
+		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 			txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
+			swq_id = iwl_virtual_agg_queue_num(swq_id, txq_id);
+		}
 		priv->stations[sta_id].tid[tid].tfds_in_queue++;
 	}
 
@@ -895,7 +897,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 			iwl_txq_update_write_ptr(priv, txq);
 			spin_unlock_irqrestore(&priv->lock, flags);
 		} else {
-			ieee80211_stop_queue(priv->hw, txq->swq_id);
+			iwl_stop_queue(priv, txq->swq_id);
 		}
 	}
 
@@ -1433,7 +1435,7 @@ void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
 		if ((iwl_queue_space(&txq->q) > txq->q.low_mark) &&
 		    priv->mac80211_registered &&
 		    (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
-			ieee80211_wake_queue(priv->hw, txq->swq_id);
+			iwl_wake_queue(priv, txq->swq_id);
 
 		iwl_txq_check_empty(priv, sta_id, tid, scd_flow);
 	}
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index ede29b6c4dc8..a71b08ca7c71 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -1168,7 +1168,7 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 			spin_unlock_irqrestore(&priv->lock, flags);
 		}
 
-		ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb));
+		iwl_stop_queue(priv, skb_get_queue_mapping(skb));
 	}
 
 	return 0;
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 551161024756..d4fdc8b7d7d8 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -933,7 +933,6 @@ static int __init init_mac80211_hwsim(void)
 			BIT(NL80211_IFTYPE_STATION) |
 			BIT(NL80211_IFTYPE_AP) |
 			BIT(NL80211_IFTYPE_MESH_POINT);
-		hw->ampdu_queues = 1;
 
 		hw->flags = IEEE80211_HW_MFP_CAPABLE;
 
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 841f7f804bb6..3b83a80e3fe0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -93,12 +93,9 @@ struct ieee80211_ht_bss_info {
  * enum ieee80211_max_queues - maximum number of queues
  *
  * @IEEE80211_MAX_QUEUES: Maximum number of regular device queues.
- * @IEEE80211_MAX_AMPDU_QUEUES: Maximum number of queues usable
- *	for A-MPDU operation.
  */
 enum ieee80211_max_queues {
 	IEEE80211_MAX_QUEUES =		4,
-	IEEE80211_MAX_AMPDU_QUEUES =	16,
 };
 
 /**
@@ -952,12 +949,6 @@ enum ieee80211_hw_flags {
  *	data packets. WMM/QoS requires at least four, these
  *	queues need to have configurable access parameters.
  *
- * @ampdu_queues: number of available hardware transmit queues
- *	for A-MPDU packets, these have no access parameters
- *	because they're used only for A-MPDU frames. Note that
- *	mac80211 will not currently use any of the regular queues
- *	for aggregation.
- *
  * @rate_control_algorithm: rate control algorithm for this hardware.
  *	If unset (NULL), the default algorithm will be used. Must be
  *	set before calling ieee80211_register_hw().
@@ -982,7 +973,6 @@ struct ieee80211_hw {
 	int vif_data_size;
 	int sta_data_size;
 	u16 queues;
-	u16 ampdu_queues;
 	u16 max_listen_interval;
 	s8 max_signal;
 	u8 max_rates;
@@ -1372,8 +1362,8 @@ enum ieee80211_ampdu_mlme_action {
  * @get_tx_stats: Get statistics of the current TX queue status. This is used
  *	to get number of currently queued packets (queue length), maximum queue
  *	size (limit), and total number of packets sent using each TX queue
- *	(count). The 'stats' pointer points to an array that has hw->queues +
- *	hw->ampdu_queues items.
+ *	(count). The 'stats' pointer points to an array that has hw->queues
+ *	items.
  *
  * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
  *	this is only used for IBSS mode BSSID merging and debugging. Is not a
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 64b839bfbf17..947aaaad35d2 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -131,14 +131,6 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 
 	state = &sta->ampdu_mlme.tid_state_tx[tid];
 
-	if (local->hw.ampdu_queues) {
-		/*
-		 * Pretend the driver woke the queue, just in case
-		 * it disabled it before the session was stopped.
-		 */
-		ieee80211_wake_queue(
-			&local->hw, local->hw.queues + sta->tid_to_tx_q[tid]);
-	}
 	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
 		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
 
@@ -206,7 +198,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *sdata;
 	u8 *state;
-	int i, qn = -1, ret = 0;
+	int ret = 0;
 	u16 start_seq_num;
 
 	if (WARN_ON(!local->ops->ampdu_action))
@@ -275,29 +267,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		goto err_unlock_sta;
 	}
 
-	if (hw->ampdu_queues) {
-		spin_lock(&local->queue_stop_reason_lock);
-		/* reserve a new queue for this session */
-		for (i = 0; i < local->hw.ampdu_queues; i++) {
-			if (local->ampdu_ac_queue[i] < 0) {
-				qn = i;
-				local->ampdu_ac_queue[qn] =
-					ieee80211_ac_from_tid(tid);
-				break;
-			}
-		}
-		spin_unlock(&local->queue_stop_reason_lock);
-
-		if (qn < 0) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-			printk(KERN_DEBUG "BA request denied - "
-			       "queue unavailable for tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-			ret = -ENOSPC;
-			goto err_unlock_sta;
-		}
-	}
-
 	/*
 	 * While we're asking the driver about the aggregation,
 	 * stop the AC queue so that we don't have to worry
@@ -319,7 +288,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 					tid);
 #endif
 		ret = -ENOMEM;
-		goto err_return_queue;
+		goto err_wake_queue;
 	}
 
 	skb_queue_head_init(&sta->ampdu_mlme.tid_tx[tid]->pending);
@@ -348,7 +317,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		*state = HT_AGG_STATE_IDLE;
 		goto err_free;
 	}
-	sta->tid_to_tx_q[tid] = qn;
 
 	/* Driver vetoed or OKed, but we can take packets again now */
 	ieee80211_wake_queue_by_reason(
@@ -380,13 +348,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
  err_free:
 	kfree(sta->ampdu_mlme.tid_tx[tid]);
 	sta->ampdu_mlme.tid_tx[tid] = NULL;
- err_return_queue:
-	if (qn >= 0) {
-		/* give queue back to pool */
-		spin_lock(&local->queue_stop_reason_lock);
-		local->ampdu_ac_queue[qn] = -1;
-		spin_unlock(&local->queue_stop_reason_lock);
-	}
+ err_wake_queue:
 	ieee80211_wake_queue_by_reason(
 		&local->hw, ieee80211_ac_from_tid(tid),
 		IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 32345b479adb..e6ed78cb16b3 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -594,12 +594,7 @@ struct ieee80211_local {
 
 	const struct ieee80211_ops *ops;
 
-	/* AC queue corresponding to each AMPDU queue */
-	s8 ampdu_ac_queue[IEEE80211_MAX_AMPDU_QUEUES];
-	unsigned int amdpu_ac_stop_refcnt[IEEE80211_MAX_AMPDU_QUEUES];
-
-	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES +
-					 IEEE80211_MAX_AMPDU_QUEUES];
+	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
 	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
 	spinlock_t queue_stop_reason_lock;
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 756284e0bbd3..a6f1d8a869bc 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -774,11 +774,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	setup_timer(&local->dynamic_ps_timer,
 		    ieee80211_dynamic_ps_timer, (unsigned long) local);
 
-	for (i = 0; i < IEEE80211_MAX_AMPDU_QUEUES; i++)
-		local->ampdu_ac_queue[i] = -1;
-	/* using an s8 won't work with more than that */
-	BUILD_BUG_ON(IEEE80211_MAX_AMPDU_QUEUES > 127);
-
 	sta_info_init(local);
 
 	for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
@@ -874,10 +869,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	 */
 	if (hw->queues > IEEE80211_MAX_QUEUES)
 		hw->queues = IEEE80211_MAX_QUEUES;
-	if (hw->ampdu_queues > IEEE80211_MAX_AMPDU_QUEUES)
-		hw->ampdu_queues = IEEE80211_MAX_AMPDU_QUEUES;
-	if (hw->queues < 4)
-		hw->ampdu_queues = 0;
 
 	mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv),
 			       "wmaster%d", ieee80211_master_setup,
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index dd3593c1fd23..c5f14e6bbde2 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -203,17 +203,6 @@ void sta_info_destroy(struct sta_info *sta)
 		if (tid_rx)
 			tid_rx->shutdown = true;
 
-		/*
-		 * The stop callback cannot find this station any more, but
-		 * it didn't complete its work -- start the queue if necessary
-		 */
-		if (sta->ampdu_mlme.tid_state_tx[i] & HT_AGG_STATE_INITIATOR_MSK &&
-		    sta->ampdu_mlme.tid_state_tx[i] & HT_AGG_STATE_REQ_STOP_BA_MSK &&
-		    local->hw.ampdu_queues)
-			ieee80211_wake_queue_by_reason(&local->hw,
-				local->hw.queues + sta->tid_to_tx_q[i],
-				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
-
 		spin_unlock_bh(&sta->lock);
 
 		/*
@@ -292,7 +281,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 		 * enable session_timer's data differentiation. refer to
 		 * sta_rx_agg_session_timer_expired for useage */
 		sta->timer_to_tid[i] = i;
-		sta->tid_to_tx_q[i] = -1;
 		/* rx */
 		sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE;
 		sta->ampdu_mlme.tid_rx[i] = NULL;
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 18fd5d1a4422..5534d489f506 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -206,7 +206,6 @@ struct sta_ampdu_mlme {
  * @tid_seq: per-TID sequence numbers for sending to this STA
  * @ampdu_mlme: A-MPDU state machine state
  * @timer_to_tid: identity mapping to ID timers
- * @tid_to_tx_q: map tid to tx queue (invalid == negative values)
  * @llid: Local link ID
  * @plid: Peer link ID
  * @reason: Cancel reason on PLINK_HOLDING state
@@ -281,7 +280,6 @@ struct sta_info {
 	 */
 	struct sta_ampdu_mlme ampdu_mlme;
 	u8 timer_to_tid[STA_TID_NUM];
-	s8 tid_to_tx_q[STA_TID_NUM];
 
 #ifdef CONFIG_MAC80211_MESH
 	/*
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 906ab785db40..3fb04a86444d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1145,25 +1145,6 @@ static int __ieee80211_tx(struct ieee80211_local *local,
 			info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT |
 					 IEEE80211_TX_CTL_FIRST_FRAGMENT);
 
-		/*
-		 * Internally, we need to have the queue mapping point to
-		 * the real AC queue, not the virtual A-MPDU queue. This
-		 * now finally sets the queue to what the driver wants.
-		 * We will later move this down into the only driver that
-		 * needs it, iwlwifi.
-		 */
-		if (sta && local->hw.ampdu_queues &&
-		    info->flags & IEEE80211_TX_CTL_AMPDU) {
-			unsigned long flags;
-			u8 *qc = ieee80211_get_qos_ctl((void *) skb->data);
-			int tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
-
-			spin_lock_irqsave(&sta->lock, flags);
-			skb_set_queue_mapping(skb, local->hw.queues +
-						   sta->tid_to_tx_q[tid]);
-			spin_unlock_irqrestore(&sta->lock, flags);
-		}
-
 		next = skb->next;
 		len = skb->len;
 		ret = local->ops->tx(local_to_hw(local), skb);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0247d8022f5f..fdf432f14554 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -339,29 +339,8 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	if (queue >= hw->queues) {
-		if (local->ampdu_ac_queue[queue - hw->queues] < 0)
-			return;
-
-		/*
-		 * for virtual aggregation queues, we need to refcount the
-		 * internal mac80211 disable (multiple times!), keep track of
-		 * driver disable _and_ make sure the regular queue is
-		 * actually enabled.
-		 */
-		if (reason == IEEE80211_QUEUE_STOP_REASON_AGGREGATION)
-			local->amdpu_ac_stop_refcnt[queue - hw->queues]--;
-		else
-			__clear_bit(reason, &local->queue_stop_reasons[queue]);
-
-		if (local->queue_stop_reasons[queue] ||
-		    local->amdpu_ac_stop_refcnt[queue - hw->queues])
-			return;
-
-		/* now go on to treat the corresponding regular queue */
-		queue = local->ampdu_ac_queue[queue - hw->queues];
-		reason = IEEE80211_QUEUE_STOP_REASON_AGGREGATION;
-	}
+	if (WARN_ON(queue >= hw->queues))
+		return;
 
 	__clear_bit(reason, &local->queue_stop_reasons[queue]);
 
@@ -400,25 +379,8 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	if (queue >= hw->queues) {
-		if (local->ampdu_ac_queue[queue - hw->queues] < 0)
-			return;
-
-		/*
-		 * for virtual aggregation queues, we need to refcount the
-		 * internal mac80211 disable (multiple times!), keep track of
-		 * driver disable _and_ make sure the regular queue is
-		 * actually enabled.
-		 */
-		if (reason == IEEE80211_QUEUE_STOP_REASON_AGGREGATION)
-			local->amdpu_ac_stop_refcnt[queue - hw->queues]++;
-		else
-			__set_bit(reason, &local->queue_stop_reasons[queue]);
-
-		/* now go on to treat the corresponding regular queue */
-		queue = local->ampdu_ac_queue[queue - hw->queues];
-		reason = IEEE80211_QUEUE_STOP_REASON_AGGREGATION;
-	}
+	if (WARN_ON(queue >= hw->queues))
+		return;
 
 	/*
 	 * Only stop if it was previously running, this is necessary
@@ -474,15 +436,9 @@ EXPORT_SYMBOL(ieee80211_stop_queues);
 int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	unsigned long flags;
 
-	if (queue >= hw->queues) {
-		spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
-		queue = local->ampdu_ac_queue[queue - hw->queues];
-		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
-		if (queue < 0)
-			return true;
-	}
+	if (WARN_ON(queue >= hw->queues))
+		return true;
 
 	return __netif_subqueue_stopped(local->mdev, queue);
 }
@@ -497,7 +453,7 @@ void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
 
 	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 
-	for (i = 0; i < hw->queues + hw->ampdu_queues; i++)
+	for (i = 0; i < hw->queues; i++)
 		__ieee80211_wake_queue(hw, i, reason);
 
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
-- 
cgit v1.2.3


From 389fb800ac8be2832efedd19978a2b8ced37eb61 Mon Sep 17 00:00:00 2001
From: Paul Moore <paul.moore@hp.com>
Date: Fri, 27 Mar 2009 17:10:34 -0400
Subject: netlabel: Label incoming TCP connections correctly in SELinux

The current NetLabel/SELinux behavior for incoming TCP connections works but
only through a series of happy coincidences that rely on the limited nature of
standard CIPSO (only able to convey MLS attributes) and the write equality
imposed by the SELinux MLS constraints.  The problem is that network sockets
created as the result of an incoming TCP connection were not on-the-wire
labeled based on the security attributes of the parent socket but rather based
on the wire label of the remote peer.  The issue had to do with how IP options
were managed as part of the network stack and where the LSM hooks were in
relation to the code which set the IP options on these newly created child
sockets.  While NetLabel/SELinux did correctly set the socket's on-the-wire
label it was promptly cleared by the network stack and reset based on the IP
options of the remote peer.

This patch, in conjunction with a prior patch that adjusted the LSM hook
locations, works to set the correct on-the-wire label format for new incoming
connections through the security_inet_conn_request() hook.  Besides the
correct behavior there are many advantages to this change, the most significant
is that all of the NetLabel socket labeling code in SELinux now lives in hooks
which can return error codes to the core stack which allows us to finally get
ride of the selinux_netlbl_inode_permission() logic which greatly simplfies
the NetLabel/SELinux glue code.  In the process of developing this patch I
also ran into a small handful of AF_INET6 cleanliness issues that have been
fixed which should make the code safer and easier to extend in the future.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 include/net/cipso_ipv4.h            |  17 ++++
 include/net/netlabel.h              |  12 ++-
 net/ipv4/cipso_ipv4.c               | 130 ++++++++++++++++++++++---
 net/netlabel/netlabel_kapi.c        | 152 +++++++++++++++++++++++++----
 security/selinux/hooks.c            |  54 +++--------
 security/selinux/include/netlabel.h |  27 +++---
 security/selinux/netlabel.c         | 186 ++++++++++--------------------------
 security/smack/smack_lsm.c          |   2 +-
 8 files changed, 360 insertions(+), 220 deletions(-)

(limited to 'include')

diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h
index bedc7f62e35d..abd443604c9f 100644
--- a/include/net/cipso_ipv4.h
+++ b/include/net/cipso_ipv4.h
@@ -40,6 +40,7 @@
 #include <linux/net.h>
 #include <linux/skbuff.h>
 #include <net/netlabel.h>
+#include <net/request_sock.h>
 #include <asm/atomic.h>
 
 /* known doi values */
@@ -215,6 +216,10 @@ int cipso_v4_sock_setattr(struct sock *sk,
 			  const struct netlbl_lsm_secattr *secattr);
 void cipso_v4_sock_delattr(struct sock *sk);
 int cipso_v4_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr);
+int cipso_v4_req_setattr(struct request_sock *req,
+			 const struct cipso_v4_doi *doi_def,
+			 const struct netlbl_lsm_secattr *secattr);
+void cipso_v4_req_delattr(struct request_sock *req);
 int cipso_v4_skbuff_setattr(struct sk_buff *skb,
 			    const struct cipso_v4_doi *doi_def,
 			    const struct netlbl_lsm_secattr *secattr);
@@ -247,6 +252,18 @@ static inline int cipso_v4_sock_getattr(struct sock *sk,
 	return -ENOSYS;
 }
 
+static inline int cipso_v4_req_setattr(struct request_sock *req,
+				       const struct cipso_v4_doi *doi_def,
+				       const struct netlbl_lsm_secattr *secattr)
+{
+	return -ENOSYS;
+}
+
+static inline void cipso_v4_req_delattr(struct request_sock *req)
+{
+	return;
+}
+
 static inline int cipso_v4_skbuff_setattr(struct sk_buff *skb,
 				      const struct cipso_v4_doi *doi_def,
 				      const struct netlbl_lsm_secattr *secattr)
diff --git a/include/net/netlabel.h b/include/net/netlabel.h
index 749011eedc0b..bdb10e5183d5 100644
--- a/include/net/netlabel.h
+++ b/include/net/netlabel.h
@@ -36,6 +36,7 @@
 #include <linux/in.h>
 #include <linux/in6.h>
 #include <net/netlink.h>
+#include <net/request_sock.h>
 #include <asm/atomic.h>
 
 struct cipso_v4_doi;
@@ -406,6 +407,7 @@ int netlbl_secattr_catmap_setrng(struct netlbl_lsm_secattr_catmap *catmap,
  */
 int netlbl_enabled(void);
 int netlbl_sock_setattr(struct sock *sk,
+			u16 family,
 			const struct netlbl_lsm_secattr *secattr);
 void netlbl_sock_delattr(struct sock *sk);
 int netlbl_sock_getattr(struct sock *sk,
@@ -413,6 +415,8 @@ int netlbl_sock_getattr(struct sock *sk,
 int netlbl_conn_setattr(struct sock *sk,
 			struct sockaddr *addr,
 			const struct netlbl_lsm_secattr *secattr);
+int netlbl_req_setattr(struct request_sock *req,
+		       const struct netlbl_lsm_secattr *secattr);
 int netlbl_skbuff_setattr(struct sk_buff *skb,
 			  u16 family,
 			  const struct netlbl_lsm_secattr *secattr);
@@ -519,7 +523,8 @@ static inline int netlbl_enabled(void)
 	return 0;
 }
 static inline int netlbl_sock_setattr(struct sock *sk,
-				     const struct netlbl_lsm_secattr *secattr)
+				      u16 family,
+				      const struct netlbl_lsm_secattr *secattr)
 {
 	return -ENOSYS;
 }
@@ -537,6 +542,11 @@ static inline int netlbl_conn_setattr(struct sock *sk,
 {
 	return -ENOSYS;
 }
+static inline int netlbl_req_setattr(struct request_sock *req,
+				     const struct netlbl_lsm_secattr *secattr)
+{
+	return -ENOSYS;
+}
 static inline int netlbl_skbuff_setattr(struct sk_buff *skb,
 				      u16 family,
 				      const struct netlbl_lsm_secattr *secattr)
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 7bc992976d29..039cc1ffe977 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1942,23 +1942,85 @@ socket_setattr_failure:
 }
 
 /**
- * cipso_v4_sock_delattr - Delete the CIPSO option from a socket
- * @sk: the socket
+ * cipso_v4_req_setattr - Add a CIPSO option to a connection request socket
+ * @req: the connection request socket
+ * @doi_def: the CIPSO DOI to use
+ * @secattr: the specific security attributes of the socket
  *
  * Description:
- * Removes the CIPSO option from a socket, if present.
+ * Set the CIPSO option on the given socket using the DOI definition and
+ * security attributes passed to the function.  Returns zero on success and
+ * negative values on failure.
  *
  */
-void cipso_v4_sock_delattr(struct sock *sk)
+int cipso_v4_req_setattr(struct request_sock *req,
+			 const struct cipso_v4_doi *doi_def,
+			 const struct netlbl_lsm_secattr *secattr)
 {
-	u8 hdr_delta;
-	struct ip_options *opt;
-	struct inet_sock *sk_inet;
+	int ret_val = -EPERM;
+	unsigned char *buf = NULL;
+	u32 buf_len;
+	u32 opt_len;
+	struct ip_options *opt = NULL;
+	struct inet_request_sock *req_inet;
 
-	sk_inet = inet_sk(sk);
-	opt = sk_inet->opt;
-	if (opt == NULL || opt->cipso == 0)
-		return;
+	/* We allocate the maximum CIPSO option size here so we are probably
+	 * being a little wasteful, but it makes our life _much_ easier later
+	 * on and after all we are only talking about 40 bytes. */
+	buf_len = CIPSO_V4_OPT_LEN_MAX;
+	buf = kmalloc(buf_len, GFP_ATOMIC);
+	if (buf == NULL) {
+		ret_val = -ENOMEM;
+		goto req_setattr_failure;
+	}
+
+	ret_val = cipso_v4_genopt(buf, buf_len, doi_def, secattr);
+	if (ret_val < 0)
+		goto req_setattr_failure;
+	buf_len = ret_val;
+
+	/* We can't use ip_options_get() directly because it makes a call to
+	 * ip_options_get_alloc() which allocates memory with GFP_KERNEL and
+	 * we won't always have CAP_NET_RAW even though we _always_ want to
+	 * set the IPOPT_CIPSO option. */
+	opt_len = (buf_len + 3) & ~3;
+	opt = kzalloc(sizeof(*opt) + opt_len, GFP_ATOMIC);
+	if (opt == NULL) {
+		ret_val = -ENOMEM;
+		goto req_setattr_failure;
+	}
+	memcpy(opt->__data, buf, buf_len);
+	opt->optlen = opt_len;
+	opt->cipso = sizeof(struct iphdr);
+	kfree(buf);
+	buf = NULL;
+
+	req_inet = inet_rsk(req);
+	opt = xchg(&req_inet->opt, opt);
+	kfree(opt);
+
+	return 0;
+
+req_setattr_failure:
+	kfree(buf);
+	kfree(opt);
+	return ret_val;
+}
+
+/**
+ * cipso_v4_delopt - Delete the CIPSO option from a set of IP options
+ * @opt_ptr: IP option pointer
+ *
+ * Description:
+ * Deletes the CIPSO IP option from a set of IP options and makes the necessary
+ * adjustments to the IP option structure.  Returns zero on success, negative
+ * values on failure.
+ *
+ */
+int cipso_v4_delopt(struct ip_options **opt_ptr)
+{
+	int hdr_delta = 0;
+	struct ip_options *opt = *opt_ptr;
 
 	if (opt->srr || opt->rr || opt->ts || opt->router_alert) {
 		u8 cipso_len;
@@ -2003,11 +2065,34 @@ void cipso_v4_sock_delattr(struct sock *sk)
 	} else {
 		/* only the cipso option was present on the socket so we can
 		 * remove the entire option struct */
-		sk_inet->opt = NULL;
+		*opt_ptr = NULL;
 		hdr_delta = opt->optlen;
 		kfree(opt);
 	}
 
+	return hdr_delta;
+}
+
+/**
+ * cipso_v4_sock_delattr - Delete the CIPSO option from a socket
+ * @sk: the socket
+ *
+ * Description:
+ * Removes the CIPSO option from a socket, if present.
+ *
+ */
+void cipso_v4_sock_delattr(struct sock *sk)
+{
+	int hdr_delta;
+	struct ip_options *opt;
+	struct inet_sock *sk_inet;
+
+	sk_inet = inet_sk(sk);
+	opt = sk_inet->opt;
+	if (opt == NULL || opt->cipso == 0)
+		return;
+
+	hdr_delta = cipso_v4_delopt(&sk_inet->opt);
 	if (sk_inet->is_icsk && hdr_delta > 0) {
 		struct inet_connection_sock *sk_conn = inet_csk(sk);
 		sk_conn->icsk_ext_hdr_len -= hdr_delta;
@@ -2015,6 +2100,27 @@ void cipso_v4_sock_delattr(struct sock *sk)
 	}
 }
 
+/**
+ * cipso_v4_req_delattr - Delete the CIPSO option from a request socket
+ * @reg: the request socket
+ *
+ * Description:
+ * Removes the CIPSO option from a request socket, if present.
+ *
+ */
+void cipso_v4_req_delattr(struct request_sock *req)
+{
+	struct ip_options *opt;
+	struct inet_request_sock *req_inet;
+
+	req_inet = inet_rsk(req);
+	opt = req_inet->opt;
+	if (opt == NULL || opt->cipso == 0)
+		return;
+
+	cipso_v4_delopt(&req_inet->opt);
+}
+
 /**
  * cipso_v4_getattr - Helper function for the cipso_v4_*_getattr functions
  * @cipso: the CIPSO v4 option
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index fd9229db075c..cae2f5f4cac0 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -619,8 +619,9 @@ int netlbl_enabled(void)
 }
 
 /**
- * netlbl_socket_setattr - Label a socket using the correct protocol
+ * netlbl_sock_setattr - Label a socket using the correct protocol
  * @sk: the socket to label
+ * @family: protocol family
  * @secattr: the security attributes
  *
  * Description:
@@ -633,29 +634,45 @@ int netlbl_enabled(void)
  *
  */
 int netlbl_sock_setattr(struct sock *sk,
+			u16 family,
 			const struct netlbl_lsm_secattr *secattr)
 {
-	int ret_val = -ENOENT;
+	int ret_val;
 	struct netlbl_dom_map *dom_entry;
 
 	rcu_read_lock();
 	dom_entry = netlbl_domhsh_getentry(secattr->domain);
-	if (dom_entry == NULL)
+	if (dom_entry == NULL) {
+		ret_val = -ENOENT;
 		goto socket_setattr_return;
-	switch (dom_entry->type) {
-	case NETLBL_NLTYPE_ADDRSELECT:
-		ret_val = -EDESTADDRREQ;
-		break;
-	case NETLBL_NLTYPE_CIPSOV4:
-		ret_val = cipso_v4_sock_setattr(sk,
-						dom_entry->type_def.cipsov4,
-						secattr);
+	}
+	switch (family) {
+	case AF_INET:
+		switch (dom_entry->type) {
+		case NETLBL_NLTYPE_ADDRSELECT:
+			ret_val = -EDESTADDRREQ;
+			break;
+		case NETLBL_NLTYPE_CIPSOV4:
+			ret_val = cipso_v4_sock_setattr(sk,
+						    dom_entry->type_def.cipsov4,
+						    secattr);
+			break;
+		case NETLBL_NLTYPE_UNLABELED:
+			ret_val = 0;
+			break;
+		default:
+			ret_val = -ENOENT;
+		}
 		break;
-	case NETLBL_NLTYPE_UNLABELED:
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	case AF_INET6:
+		/* since we don't support any IPv6 labeling protocols right
+		 * now we can optimize everything away until we do */
 		ret_val = 0;
 		break;
+#endif /* IPv6 */
 	default:
-		ret_val = -ENOENT;
+		ret_val = -EPROTONOSUPPORT;
 	}
 
 socket_setattr_return:
@@ -689,9 +706,25 @@ void netlbl_sock_delattr(struct sock *sk)
  * on failure.
  *
  */
-int netlbl_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr)
+int netlbl_sock_getattr(struct sock *sk,
+			struct netlbl_lsm_secattr *secattr)
 {
-	return cipso_v4_sock_getattr(sk, secattr);
+	int ret_val;
+
+	switch (sk->sk_family) {
+	case AF_INET:
+		ret_val = cipso_v4_sock_getattr(sk, secattr);
+		break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	case AF_INET6:
+		ret_val = -ENOMSG;
+		break;
+#endif /* IPv6 */
+	default:
+		ret_val = -EPROTONOSUPPORT;
+	}
+
+	return ret_val;
 }
 
 /**
@@ -748,7 +781,7 @@ int netlbl_conn_setattr(struct sock *sk,
 		break;
 #endif /* IPv6 */
 	default:
-		ret_val = 0;
+		ret_val = -EPROTONOSUPPORT;
 	}
 
 conn_setattr_return:
@@ -756,6 +789,77 @@ conn_setattr_return:
 	return ret_val;
 }
 
+/**
+ * netlbl_req_setattr - Label a request socket using the correct protocol
+ * @req: the request socket to label
+ * @secattr: the security attributes
+ *
+ * Description:
+ * Attach the correct label to the given socket using the security attributes
+ * specified in @secattr.  Returns zero on success, negative values on failure.
+ *
+ */
+int netlbl_req_setattr(struct request_sock *req,
+		       const struct netlbl_lsm_secattr *secattr)
+{
+	int ret_val;
+	struct netlbl_dom_map *dom_entry;
+	struct netlbl_domaddr4_map *af4_entry;
+	u32 proto_type;
+	struct cipso_v4_doi *proto_cv4;
+
+	rcu_read_lock();
+	dom_entry = netlbl_domhsh_getentry(secattr->domain);
+	if (dom_entry == NULL) {
+		ret_val = -ENOENT;
+		goto req_setattr_return;
+	}
+	switch (req->rsk_ops->family) {
+	case AF_INET:
+		if (dom_entry->type == NETLBL_NLTYPE_ADDRSELECT) {
+			struct inet_request_sock *req_inet = inet_rsk(req);
+			af4_entry = netlbl_domhsh_getentry_af4(secattr->domain,
+							    req_inet->rmt_addr);
+			if (af4_entry == NULL) {
+				ret_val = -ENOENT;
+				goto req_setattr_return;
+			}
+			proto_type = af4_entry->type;
+			proto_cv4 = af4_entry->type_def.cipsov4;
+		} else {
+			proto_type = dom_entry->type;
+			proto_cv4 = dom_entry->type_def.cipsov4;
+		}
+		switch (proto_type) {
+		case NETLBL_NLTYPE_CIPSOV4:
+			ret_val = cipso_v4_req_setattr(req, proto_cv4, secattr);
+			break;
+		case NETLBL_NLTYPE_UNLABELED:
+			/* just delete the protocols we support for right now
+			 * but we could remove other protocols if needed */
+			cipso_v4_req_delattr(req);
+			ret_val = 0;
+			break;
+		default:
+			ret_val = -ENOENT;
+		}
+		break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	case AF_INET6:
+		/* since we don't support any IPv6 labeling protocols right
+		 * now we can optimize everything away until we do */
+		ret_val = 0;
+		break;
+#endif /* IPv6 */
+	default:
+		ret_val = -EPROTONOSUPPORT;
+	}
+
+req_setattr_return:
+	rcu_read_unlock();
+	return ret_val;
+}
+
 /**
  * netlbl_skbuff_setattr - Label a packet using the correct protocol
  * @skb: the packet
@@ -808,7 +912,7 @@ int netlbl_skbuff_setattr(struct sk_buff *skb,
 		break;
 #endif /* IPv6 */
 	default:
-		ret_val = 0;
+		ret_val = -EPROTONOSUPPORT;
 	}
 
 skbuff_setattr_return:
@@ -833,9 +937,17 @@ int netlbl_skbuff_getattr(const struct sk_buff *skb,
 			  u16 family,
 			  struct netlbl_lsm_secattr *secattr)
 {
-	if (CIPSO_V4_OPTEXIST(skb) &&
-	    cipso_v4_skbuff_getattr(skb, secattr) == 0)
-		return 0;
+	switch (family) {
+	case AF_INET:
+		if (CIPSO_V4_OPTEXIST(skb) &&
+		    cipso_v4_skbuff_getattr(skb, secattr) == 0)
+			return 0;
+		break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	case AF_INET6:
+		break;
+#endif /* IPv6 */
+	}
 
 	return netlbl_unlabel_getattr(skb, family, secattr);
 }
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 7c52ba243c64..ee2e781d11d7 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -311,7 +311,7 @@ static int sk_alloc_security(struct sock *sk, int family, gfp_t priority)
 	ssec->sid = SECINITSID_UNLABELED;
 	sk->sk_security = ssec;
 
-	selinux_netlbl_sk_security_reset(ssec, family);
+	selinux_netlbl_sk_security_reset(ssec);
 
 	return 0;
 }
@@ -2945,7 +2945,6 @@ static void selinux_inode_getsecid(const struct inode *inode, u32 *secid)
 static int selinux_revalidate_file_permission(struct file *file, int mask)
 {
 	const struct cred *cred = current_cred();
-	int rc;
 	struct inode *inode = file->f_path.dentry->d_inode;
 
 	if (!mask) {
@@ -2957,29 +2956,15 @@ static int selinux_revalidate_file_permission(struct file *file, int mask)
 	if ((file->f_flags & O_APPEND) && (mask & MAY_WRITE))
 		mask |= MAY_APPEND;
 
-	rc = file_has_perm(cred, file,
-			   file_mask_to_av(inode->i_mode, mask));
-	if (rc)
-		return rc;
-
-	return selinux_netlbl_inode_permission(inode, mask);
+	return file_has_perm(cred, file,
+			     file_mask_to_av(inode->i_mode, mask));
 }
 
 static int selinux_file_permission(struct file *file, int mask)
 {
-	struct inode *inode = file->f_path.dentry->d_inode;
-	struct file_security_struct *fsec = file->f_security;
-	struct inode_security_struct *isec = inode->i_security;
-	u32 sid = current_sid();
-
-	if (!mask) {
+	if (!mask)
 		/* No permission to check.  Existence test. */
 		return 0;
-	}
-
-	if (sid == fsec->sid && fsec->isid == isec->sid
-	    && fsec->pseqno == avc_policy_seqno())
-		return selinux_netlbl_inode_permission(inode, mask);
 
 	return selinux_revalidate_file_permission(file, mask);
 }
@@ -3723,7 +3708,7 @@ static int selinux_socket_post_create(struct socket *sock, int family,
 		sksec = sock->sk->sk_security;
 		sksec->sid = isec->sid;
 		sksec->sclass = isec->sclass;
-		err = selinux_netlbl_socket_post_create(sock);
+		err = selinux_netlbl_socket_post_create(sock->sk, family);
 	}
 
 	return err;
@@ -3914,13 +3899,7 @@ static int selinux_socket_accept(struct socket *sock, struct socket *newsock)
 static int selinux_socket_sendmsg(struct socket *sock, struct msghdr *msg,
 				  int size)
 {
-	int rc;
-
-	rc = socket_has_perm(current, sock, SOCKET__WRITE);
-	if (rc)
-		return rc;
-
-	return selinux_netlbl_inode_permission(SOCK_INODE(sock), MAY_WRITE);
+	return socket_has_perm(current, sock, SOCKET__WRITE);
 }
 
 static int selinux_socket_recvmsg(struct socket *sock, struct msghdr *msg,
@@ -4304,7 +4283,7 @@ static void selinux_sk_clone_security(const struct sock *sk, struct sock *newsk)
 	newssec->peer_sid = ssec->peer_sid;
 	newssec->sclass = ssec->sclass;
 
-	selinux_netlbl_sk_security_reset(newssec, newsk->sk_family);
+	selinux_netlbl_sk_security_reset(newssec);
 }
 
 static void selinux_sk_getsecid(struct sock *sk, u32 *secid)
@@ -4348,16 +4327,15 @@ static int selinux_inet_conn_request(struct sock *sk, struct sk_buff *skb,
 	if (peersid == SECSID_NULL) {
 		req->secid = sksec->sid;
 		req->peer_secid = SECSID_NULL;
-		return 0;
+	} else {
+		err = security_sid_mls_copy(sksec->sid, peersid, &newsid);
+		if (err)
+			return err;
+		req->secid = newsid;
+		req->peer_secid = peersid;
 	}
 
-	err = security_sid_mls_copy(sksec->sid, peersid, &newsid);
-	if (err)
-		return err;
-
-	req->secid = newsid;
-	req->peer_secid = peersid;
-	return 0;
+	return selinux_netlbl_inet_conn_request(req, family);
 }
 
 static void selinux_inet_csk_clone(struct sock *newsk,
@@ -4374,7 +4352,7 @@ static void selinux_inet_csk_clone(struct sock *newsk,
 
 	/* We don't need to take any sort of lock here as we are the only
 	 * thread with access to newsksec */
-	selinux_netlbl_sk_security_reset(newsksec, req->rsk_ops->family);
+	selinux_netlbl_inet_csk_clone(newsk, req->rsk_ops->family);
 }
 
 static void selinux_inet_conn_established(struct sock *sk, struct sk_buff *skb)
@@ -4387,8 +4365,6 @@ static void selinux_inet_conn_established(struct sock *sk, struct sk_buff *skb)
 		family = PF_INET;
 
 	selinux_skb_peerlbl_sid(skb, family, &sksec->peer_sid);
-
-	selinux_netlbl_inet_conn_established(sk, family);
 }
 
 static void selinux_req_classify_flow(const struct request_sock *req,
diff --git a/security/selinux/include/netlabel.h b/security/selinux/include/netlabel.h
index b913c8d06038..b4b5b9b2f0be 100644
--- a/security/selinux/include/netlabel.h
+++ b/security/selinux/include/netlabel.h
@@ -32,6 +32,7 @@
 #include <linux/net.h>
 #include <linux/skbuff.h>
 #include <net/sock.h>
+#include <net/request_sock.h>
 
 #include "avc.h"
 #include "objsec.h"
@@ -42,8 +43,7 @@ void selinux_netlbl_cache_invalidate(void);
 void selinux_netlbl_err(struct sk_buff *skb, int error, int gateway);
 
 void selinux_netlbl_sk_security_free(struct sk_security_struct *ssec);
-void selinux_netlbl_sk_security_reset(struct sk_security_struct *ssec,
-				      int family);
+void selinux_netlbl_sk_security_reset(struct sk_security_struct *ssec);
 
 int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
 				 u16 family,
@@ -53,9 +53,9 @@ int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
 				 u16 family,
 				 u32 sid);
 
-void selinux_netlbl_inet_conn_established(struct sock *sk, u16 family);
-int selinux_netlbl_socket_post_create(struct socket *sock);
-int selinux_netlbl_inode_permission(struct inode *inode, int mask);
+int selinux_netlbl_inet_conn_request(struct request_sock *req, u16 family);
+void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family);
+int selinux_netlbl_socket_post_create(struct sock *sk, u16 family);
 int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
 				struct sk_buff *skb,
 				u16 family,
@@ -85,8 +85,7 @@ static inline void selinux_netlbl_sk_security_free(
 }
 
 static inline void selinux_netlbl_sk_security_reset(
-					       struct sk_security_struct *ssec,
-					       int family)
+					       struct sk_security_struct *ssec)
 {
 	return;
 }
@@ -113,17 +112,17 @@ static inline int selinux_netlbl_conn_setsid(struct sock *sk,
 	return 0;
 }
 
-static inline void selinux_netlbl_inet_conn_established(struct sock *sk,
-							u16 family)
+static inline int selinux_netlbl_inet_conn_request(struct request_sock *req,
+						   u16 family)
 {
-	return;
+	return 0;
 }
-static inline int selinux_netlbl_socket_post_create(struct socket *sock)
+static inline void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family)
 {
-	return 0;
+	return;
 }
-static inline int selinux_netlbl_inode_permission(struct inode *inode,
-						  int mask)
+static inline int selinux_netlbl_socket_post_create(struct sock *sk,
+						    u16 family)
 {
 	return 0;
 }
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index 350794ab9b42..2e984413c7b2 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -99,41 +99,6 @@ static struct netlbl_lsm_secattr *selinux_netlbl_sock_genattr(struct sock *sk)
 	return secattr;
 }
 
-/**
- * selinux_netlbl_sock_setsid - Label a socket using the NetLabel mechanism
- * @sk: the socket to label
- *
- * Description:
- * Attempt to label a socket using the NetLabel mechanism.  Returns zero values
- * on success, negative values on failure.
- *
- */
-static int selinux_netlbl_sock_setsid(struct sock *sk)
-{
-	int rc;
-	struct sk_security_struct *sksec = sk->sk_security;
-	struct netlbl_lsm_secattr *secattr;
-
-	if (sksec->nlbl_state != NLBL_REQUIRE)
-		return 0;
-
-	secattr = selinux_netlbl_sock_genattr(sk);
-	if (secattr == NULL)
-		return -ENOMEM;
-	rc = netlbl_sock_setattr(sk, secattr);
-	switch (rc) {
-	case 0:
-		sksec->nlbl_state = NLBL_LABELED;
-		break;
-	case -EDESTADDRREQ:
-		sksec->nlbl_state = NLBL_REQSKB;
-		rc = 0;
-		break;
-	}
-
-	return rc;
-}
-
 /**
  * selinux_netlbl_cache_invalidate - Invalidate the NetLabel cache
  *
@@ -188,13 +153,9 @@ void selinux_netlbl_sk_security_free(struct sk_security_struct *ssec)
  * The caller is responsibile for all the NetLabel sk_security_struct locking.
  *
  */
-void selinux_netlbl_sk_security_reset(struct sk_security_struct *ssec,
-				      int family)
+void selinux_netlbl_sk_security_reset(struct sk_security_struct *ssec)
 {
-	if (family == PF_INET)
-		ssec->nlbl_state = NLBL_REQUIRE;
-	else
-		ssec->nlbl_state = NLBL_UNSET;
+	ssec->nlbl_state = NLBL_UNSET;
 }
 
 /**
@@ -281,127 +242,86 @@ skbuff_setsid_return:
 }
 
 /**
- * selinux_netlbl_inet_conn_established - Netlabel the newly accepted connection
- * @sk: the new connection
+ * selinux_netlbl_inet_conn_request - Label an incoming stream connection
+ * @req: incoming connection request socket
  *
  * Description:
- * A new connection has been established on @sk so make sure it is labeled
- * correctly with the NetLabel susbsystem.
+ * A new incoming connection request is represented by @req, we need to label
+ * the new request_sock here and the stack will ensure the on-the-wire label
+ * will get preserved when a full sock is created once the connection handshake
+ * is complete.  Returns zero on success, negative values on failure.
  *
  */
-void selinux_netlbl_inet_conn_established(struct sock *sk, u16 family)
+int selinux_netlbl_inet_conn_request(struct request_sock *req, u16 family)
 {
 	int rc;
-	struct sk_security_struct *sksec = sk->sk_security;
-	struct netlbl_lsm_secattr *secattr;
-	struct inet_sock *sk_inet = inet_sk(sk);
-	struct sockaddr_in addr;
-
-	if (sksec->nlbl_state != NLBL_REQUIRE)
-		return;
+	struct netlbl_lsm_secattr secattr;
 
-	secattr = selinux_netlbl_sock_genattr(sk);
-	if (secattr == NULL)
-		return;
+	if (family != PF_INET)
+		return 0;
 
-	rc = netlbl_sock_setattr(sk, secattr);
-	switch (rc) {
-	case 0:
-		sksec->nlbl_state = NLBL_LABELED;
-		break;
-	case -EDESTADDRREQ:
-		/* no PF_INET6 support yet because we don't support any IPv6
-		 * labeling protocols */
-		if (family != PF_INET) {
-			sksec->nlbl_state = NLBL_UNSET;
-			return;
-		}
-
-		addr.sin_family = family;
-		addr.sin_addr.s_addr = sk_inet->daddr;
-		if (netlbl_conn_setattr(sk, (struct sockaddr *)&addr,
-					secattr) != 0) {
-			/* we failed to label the connected socket (could be
-			 * for a variety of reasons, the actual "why" isn't
-			 * important here) so we have to go to our backup plan,
-			 * labeling the packets individually in the netfilter
-			 * local output hook.  this is okay but we need to
-			 * adjust the MSS of the connection to take into
-			 * account any labeling overhead, since we don't know
-			 * the exact overhead at this point we'll use the worst
-			 * case value which is 40 bytes for IPv4 */
-			struct inet_connection_sock *sk_conn = inet_csk(sk);
-			sk_conn->icsk_ext_hdr_len += 40 -
-				      (sk_inet->opt ? sk_inet->opt->optlen : 0);
-			sk_conn->icsk_sync_mss(sk, sk_conn->icsk_pmtu_cookie);
-
-			sksec->nlbl_state = NLBL_REQSKB;
-		} else
-			sksec->nlbl_state = NLBL_CONNLABELED;
-		break;
-	default:
-		/* note that we are failing to label the socket which could be
-		 * a bad thing since it means traffic could leave the system
-		 * without the desired labeling, however, all is not lost as
-		 * we have a check in selinux_netlbl_inode_permission() to
-		 * pick up the pieces that we might drop here because we can't
-		 * return an error code */
-		break;
-	}
+	netlbl_secattr_init(&secattr);
+	rc = security_netlbl_sid_to_secattr(req->secid, &secattr);
+	if (rc != 0)
+		goto inet_conn_request_return;
+	rc = netlbl_req_setattr(req, &secattr);
+inet_conn_request_return:
+	netlbl_secattr_destroy(&secattr);
+	return rc;
 }
 
 /**
- * selinux_netlbl_socket_post_create - Label a socket using NetLabel
- * @sock: the socket to label
+ * selinux_netlbl_inet_csk_clone - Initialize the newly created sock
+ * @sk: the new sock
  *
  * Description:
- * Attempt to label a socket using the NetLabel mechanism using the given
- * SID.  Returns zero values on success, negative values on failure.
+ * A new connection has been established using @sk, we've already labeled the
+ * socket via the request_sock struct in selinux_netlbl_inet_conn_request() but
+ * we need to set the NetLabel state here since we now have a sock structure.
  *
  */
-int selinux_netlbl_socket_post_create(struct socket *sock)
+void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family)
 {
-	return selinux_netlbl_sock_setsid(sock->sk);
+	struct sk_security_struct *sksec = sk->sk_security;
+
+	if (family == PF_INET)
+		sksec->nlbl_state = NLBL_LABELED;
+	else
+		sksec->nlbl_state = NLBL_UNSET;
 }
 
 /**
- * selinux_netlbl_inode_permission - Verify the socket is NetLabel labeled
- * @inode: the file descriptor's inode
- * @mask: the permission mask
+ * selinux_netlbl_socket_post_create - Label a socket using NetLabel
+ * @sock: the socket to label
+ * @family: protocol family
  *
  * Description:
- * Looks at a file's inode and if it is marked as a socket protected by
- * NetLabel then verify that the socket has been labeled, if not try to label
- * the socket now with the inode's SID.  Returns zero on success, negative
- * values on failure.
+ * Attempt to label a socket using the NetLabel mechanism using the given
+ * SID.  Returns zero values on success, negative values on failure.
  *
  */
-int selinux_netlbl_inode_permission(struct inode *inode, int mask)
+int selinux_netlbl_socket_post_create(struct sock *sk, u16 family)
 {
 	int rc;
-	struct sock *sk;
-	struct socket *sock;
-	struct sk_security_struct *sksec;
+	struct sk_security_struct *sksec = sk->sk_security;
+	struct netlbl_lsm_secattr *secattr;
 
-	if (!S_ISSOCK(inode->i_mode) ||
-	    ((mask & (MAY_WRITE | MAY_APPEND)) == 0))
-		return 0;
-	sock = SOCKET_I(inode);
-	sk = sock->sk;
-	if (sk == NULL)
-		return 0;
-	sksec = sk->sk_security;
-	if (sksec == NULL || sksec->nlbl_state != NLBL_REQUIRE)
+	if (family != PF_INET)
 		return 0;
 
-	local_bh_disable();
-	bh_lock_sock_nested(sk);
-	if (likely(sksec->nlbl_state == NLBL_REQUIRE))
-		rc = selinux_netlbl_sock_setsid(sk);
-	else
+	secattr = selinux_netlbl_sock_genattr(sk);
+	if (secattr == NULL)
+		return -ENOMEM;
+	rc = netlbl_sock_setattr(sk, family, secattr);
+	switch (rc) {
+	case 0:
+		sksec->nlbl_state = NLBL_LABELED;
+		break;
+	case -EDESTADDRREQ:
+		sksec->nlbl_state = NLBL_REQSKB;
 		rc = 0;
-	bh_unlock_sock(sk);
-	local_bh_enable();
+		break;
+	}
 
 	return rc;
 }
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index fd20d15f5b9a..23ad420a49aa 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1387,7 +1387,7 @@ static int smack_netlabel(struct sock *sk, int labeled)
 	else {
 		netlbl_secattr_init(&secattr);
 		smack_to_secattr(ssp->smk_out, &secattr);
-		rc = netlbl_sock_setattr(sk, &secattr);
+		rc = netlbl_sock_setattr(sk, sk->sk_family, &secattr);
 		netlbl_secattr_destroy(&secattr);
 	}
 
-- 
cgit v1.2.3


From 8651d5c0b1f874c5b8307ae2b858bc40f9f02482 Mon Sep 17 00:00:00 2001
From: Paul Moore <paul.moore@hp.com>
Date: Fri, 27 Mar 2009 17:10:48 -0400
Subject: lsm: Remove the socket_post_accept() hook

The socket_post_accept() hook is not currently used by any in-tree modules
and its existence continues to cause problems by confusing people about
what can be safely accomplished using this hook.  If a legitimate need for
this hook arises in the future it can always be reintroduced.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 include/linux/security.h | 13 -------------
 net/socket.c             |  2 --
 security/capability.c    |  5 -----
 security/security.c      |  5 -----
 4 files changed, 25 deletions(-)

(limited to 'include')

diff --git a/include/linux/security.h b/include/linux/security.h
index 1f2ab6353c00..54ed15799a83 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -880,11 +880,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *	@sock contains the listening socket structure.
  *	@newsock contains the newly created server socket for connection.
  *	Return 0 if permission is granted.
- * @socket_post_accept:
- *	This hook allows a security module to copy security
- *	information into the newly created socket's inode.
- *	@sock contains the listening socket structure.
- *	@newsock contains the newly created server socket for connection.
  * @socket_sendmsg:
  *	Check permission before transmitting a message to another socket.
  *	@sock contains the socket structure.
@@ -1554,8 +1549,6 @@ struct security_operations {
 			       struct sockaddr *address, int addrlen);
 	int (*socket_listen) (struct socket *sock, int backlog);
 	int (*socket_accept) (struct socket *sock, struct socket *newsock);
-	void (*socket_post_accept) (struct socket *sock,
-				    struct socket *newsock);
 	int (*socket_sendmsg) (struct socket *sock,
 			       struct msghdr *msg, int size);
 	int (*socket_recvmsg) (struct socket *sock,
@@ -2537,7 +2530,6 @@ int security_socket_bind(struct socket *sock, struct sockaddr *address, int addr
 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
 int security_socket_listen(struct socket *sock, int backlog);
 int security_socket_accept(struct socket *sock, struct socket *newsock);
-void security_socket_post_accept(struct socket *sock, struct socket *newsock);
 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
 			    int size, int flags);
@@ -2616,11 +2608,6 @@ static inline int security_socket_accept(struct socket *sock,
 	return 0;
 }
 
-static inline void security_socket_post_accept(struct socket *sock,
-					       struct socket *newsock)
-{
-}
-
 static inline int security_socket_sendmsg(struct socket *sock,
 					  struct msghdr *msg, int size)
 {
diff --git a/net/socket.c b/net/socket.c
index 0b14b79c03af..91d0c0254ffe 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1536,8 +1536,6 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
 	fd_install(newfd, newfile);
 	err = newfd;
 
-	security_socket_post_accept(sock, newsock);
-
 out_put:
 	fput_light(sock->file, fput_needed);
 out:
diff --git a/security/capability.c b/security/capability.c
index c545bd1300b5..21b6cead6a8e 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -620,10 +620,6 @@ static int cap_socket_accept(struct socket *sock, struct socket *newsock)
 	return 0;
 }
 
-static void cap_socket_post_accept(struct socket *sock, struct socket *newsock)
-{
-}
-
 static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
 {
 	return 0;
@@ -1014,7 +1010,6 @@ void security_fixup_ops(struct security_operations *ops)
 	set_to_cap_if_null(ops, socket_connect);
 	set_to_cap_if_null(ops, socket_listen);
 	set_to_cap_if_null(ops, socket_accept);
-	set_to_cap_if_null(ops, socket_post_accept);
 	set_to_cap_if_null(ops, socket_sendmsg);
 	set_to_cap_if_null(ops, socket_recvmsg);
 	set_to_cap_if_null(ops, socket_getsockname);
diff --git a/security/security.c b/security/security.c
index c3586c0d97e2..206e53844d2f 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1007,11 +1007,6 @@ int security_socket_accept(struct socket *sock, struct socket *newsock)
 	return security_ops->socket_accept(sock, newsock);
 }
 
-void security_socket_post_accept(struct socket *sock, struct socket *newsock)
-{
-	security_ops->socket_post_accept(sock, newsock);
-}
-
 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
 {
 	return security_ops->socket_sendmsg(sock, msg, size);
-- 
cgit v1.2.3


From 07feee8f812f7327a46186f7604df312c8c81962 Mon Sep 17 00:00:00 2001
From: Paul Moore <paul.moore@hp.com>
Date: Fri, 27 Mar 2009 17:10:54 -0400
Subject: netlabel: Cleanup the Smack/NetLabel code to fix incoming TCP
 connections

This patch cleans up a lot of the Smack network access control code.  The
largest changes are to fix the labeling of incoming TCP connections in a
manner similar to the recent SELinux changes which use the
security_inet_conn_request() hook to label the request_sock and let the label
move to the child socket via the normal network stack mechanisms.  In addition
to the incoming TCP connection fixes this patch also removes the smk_labled
field from the socket_smack struct as the minor optimization advantage was
outweighed by the difficulty in maintaining it's proper state.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 include/net/netlabel.h       |   5 +
 net/netlabel/netlabel_kapi.c |  13 +++
 security/smack/smack.h       |   1 -
 security/smack/smack_lsm.c   | 260 ++++++++++++++++++++++++-------------------
 4 files changed, 161 insertions(+), 118 deletions(-)

(limited to 'include')

diff --git a/include/net/netlabel.h b/include/net/netlabel.h
index bdb10e5183d5..60ebbc1fef46 100644
--- a/include/net/netlabel.h
+++ b/include/net/netlabel.h
@@ -417,6 +417,7 @@ int netlbl_conn_setattr(struct sock *sk,
 			const struct netlbl_lsm_secattr *secattr);
 int netlbl_req_setattr(struct request_sock *req,
 		       const struct netlbl_lsm_secattr *secattr);
+void netlbl_req_delattr(struct request_sock *req);
 int netlbl_skbuff_setattr(struct sk_buff *skb,
 			  u16 family,
 			  const struct netlbl_lsm_secattr *secattr);
@@ -547,6 +548,10 @@ static inline int netlbl_req_setattr(struct request_sock *req,
 {
 	return -ENOSYS;
 }
+static inline void netlbl_req_delattr(struct request_sock *req)
+{
+	return;
+}
 static inline int netlbl_skbuff_setattr(struct sk_buff *skb,
 				      u16 family,
 				      const struct netlbl_lsm_secattr *secattr)
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index cae2f5f4cac0..b0e582f2d37a 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -860,6 +860,19 @@ req_setattr_return:
 	return ret_val;
 }
 
+/**
+* netlbl_req_delattr - Delete all the NetLabel labels on a socket
+* @req: the socket
+*
+* Description:
+* Remove all the NetLabel labeling from @req.
+*
+*/
+void netlbl_req_delattr(struct request_sock *req)
+{
+	cipso_v4_req_delattr(req);
+}
+
 /**
  * netlbl_skbuff_setattr - Label a packet using the correct protocol
  * @skb: the packet
diff --git a/security/smack/smack.h b/security/smack/smack.h
index 64164f8fde70..5e5a3bcb599a 100644
--- a/security/smack/smack.h
+++ b/security/smack/smack.h
@@ -42,7 +42,6 @@ struct superblock_smack {
 struct socket_smack {
 	char		*smk_out;			/* outbound label */
 	char		*smk_in;			/* inbound label */
-	int		smk_labeled;			/* label scheme */
 	char		smk_packet[SMK_LABELLEN];	/* TCP peer label */
 };
 
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 23ad420a49aa..8ed502c2ad45 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -7,6 +7,8 @@
  *	Casey Schaufler <casey@schaufler-ca.com>
  *
  *  Copyright (C) 2007 Casey Schaufler <casey@schaufler-ca.com>
+ *  Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
+ *                Paul Moore <paul.moore@hp.com>
  *
  *	This program is free software; you can redistribute it and/or modify
  *	it under the terms of the GNU General Public License version 2,
@@ -20,6 +22,7 @@
 #include <linux/ext2_fs.h>
 #include <linux/kd.h>
 #include <asm/ioctls.h>
+#include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/udp.h>
 #include <linux/mutex.h>
@@ -1275,7 +1278,6 @@ static int smack_sk_alloc_security(struct sock *sk, int family, gfp_t gfp_flags)
 
 	ssp->smk_in = csp;
 	ssp->smk_out = csp;
-	ssp->smk_labeled = SMACK_CIPSO_SOCKET;
 	ssp->smk_packet[0] = '\0';
 
 	sk->sk_security = ssp;
@@ -1294,6 +1296,39 @@ static void smack_sk_free_security(struct sock *sk)
 	kfree(sk->sk_security);
 }
 
+/**
+* smack_host_label - check host based restrictions
+* @sip: the object end
+*
+* looks for host based access restrictions
+*
+* This version will only be appropriate for really small sets of single label
+* hosts.  The caller is responsible for ensuring that the RCU read lock is
+* taken before calling this function.
+*
+* Returns the label of the far end or NULL if it's not special.
+*/
+static char *smack_host_label(struct sockaddr_in *sip)
+{
+	struct smk_netlbladdr *snp;
+	struct in_addr *siap = &sip->sin_addr;
+
+	if (siap->s_addr == 0)
+		return NULL;
+
+	list_for_each_entry_rcu(snp, &smk_netlbladdr_list, list)
+		/*
+		* we break after finding the first match because
+		* the list is sorted from longest to shortest mask
+		* so we have found the most specific match
+		*/
+		if ((&snp->smk_host.sin_addr)->s_addr ==
+		    (siap->s_addr & (&snp->smk_mask)->s_addr))
+			return snp->smk_label;
+
+	return NULL;
+}
+
 /**
  * smack_set_catset - convert a capset to netlabel mls categories
  * @catset: the Smack categories
@@ -1365,11 +1400,10 @@ static void smack_to_secattr(char *smack, struct netlbl_lsm_secattr *nlsp)
  */
 static int smack_netlabel(struct sock *sk, int labeled)
 {
-	struct socket_smack *ssp;
+	struct socket_smack *ssp = sk->sk_security;
 	struct netlbl_lsm_secattr secattr;
 	int rc = 0;
 
-	ssp = sk->sk_security;
 	/*
 	 * Usually the netlabel code will handle changing the
 	 * packet labeling based on the label.
@@ -1393,20 +1427,44 @@ static int smack_netlabel(struct sock *sk, int labeled)
 
 	bh_unlock_sock(sk);
 	local_bh_enable();
-	/*
-	 * Remember the label scheme used so that it is not
-	 * necessary to do the netlabel setting if it has not
-	 * changed the next time through.
-	 *
-	 * The -EDESTADDRREQ case is an indication that there's
-	 * a single level host involved.
-	 */
-	if (rc == 0)
-		ssp->smk_labeled = labeled;
 
 	return rc;
 }
 
+/**
+ * smack_netlbel_send - Set the secattr on a socket and perform access checks
+ * @sk: the socket
+ * @sap: the destination address
+ *
+ * Set the correct secattr for the given socket based on the destination
+ * address and perform any outbound access checks needed.
+ *
+ * Returns 0 on success or an error code.
+ *
+ */
+static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
+{
+	int rc;
+	int sk_lbl;
+	char *hostsp;
+	struct socket_smack *ssp = sk->sk_security;
+
+	rcu_read_lock();
+	hostsp = smack_host_label(sap);
+	if (hostsp != NULL) {
+		sk_lbl = SMACK_UNLABELED_SOCKET;
+		rc = smk_access(ssp->smk_out, hostsp, MAY_WRITE);
+	} else {
+		sk_lbl = SMACK_CIPSO_SOCKET;
+		rc = 0;
+	}
+	rcu_read_unlock();
+	if (rc != 0)
+		return rc;
+
+	return smack_netlabel(sk, sk_lbl);
+}
+
 /**
  * smack_inode_setsecurity - set smack xattrs
  * @inode: the object
@@ -1488,43 +1546,6 @@ static int smack_socket_post_create(struct socket *sock, int family,
 	return smack_netlabel(sock->sk, SMACK_CIPSO_SOCKET);
 }
 
-
-/**
- * smack_host_label - check host based restrictions
- * @sip: the object end
- *
- * looks for host based access restrictions
- *
- * This version will only be appropriate for really small
- * sets of single label hosts.
- *
- * Returns the label of the far end or NULL if it's not special.
- */
-static char *smack_host_label(struct sockaddr_in *sip)
-{
-	struct smk_netlbladdr *snp;
-	struct in_addr *siap = &sip->sin_addr;
-
-	if (siap->s_addr == 0)
-		return NULL;
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(snp, &smk_netlbladdr_list, list) {
-		/*
-		 * we break after finding the first match because
-		 * the list is sorted from longest to shortest mask
-		 * so we have found the most specific match
-		 */
-		if ((&snp->smk_host.sin_addr)->s_addr  ==
-			(siap->s_addr & (&snp->smk_mask)->s_addr)) {
-			rcu_read_unlock();
-			return snp->smk_label;
-		}
-	}
-	rcu_read_unlock();
-	return NULL;
-}
-
 /**
  * smack_socket_connect - connect access check
  * @sock: the socket
@@ -1538,30 +1559,12 @@ static char *smack_host_label(struct sockaddr_in *sip)
 static int smack_socket_connect(struct socket *sock, struct sockaddr *sap,
 				int addrlen)
 {
-	struct socket_smack *ssp = sock->sk->sk_security;
-	char *hostsp;
-	int rc;
-
 	if (sock->sk == NULL || sock->sk->sk_family != PF_INET)
 		return 0;
-
 	if (addrlen < sizeof(struct sockaddr_in))
 		return -EINVAL;
 
-	hostsp = smack_host_label((struct sockaddr_in *)sap);
-	if (hostsp == NULL) {
-		if (ssp->smk_labeled != SMACK_CIPSO_SOCKET)
-			return smack_netlabel(sock->sk, SMACK_CIPSO_SOCKET);
-		return 0;
-	}
-
-	rc = smk_access(ssp->smk_out, hostsp, MAY_WRITE);
-	if (rc != 0)
-		return rc;
-
-	if (ssp->smk_labeled != SMACK_UNLABELED_SOCKET)
-		return smack_netlabel(sock->sk, SMACK_UNLABELED_SOCKET);
-	return 0;
+	return smack_netlabel_send(sock->sk, (struct sockaddr_in *)sap);
 }
 
 /**
@@ -2262,9 +2265,6 @@ static int smack_socket_sendmsg(struct socket *sock, struct msghdr *msg,
 				int size)
 {
 	struct sockaddr_in *sip = (struct sockaddr_in *) msg->msg_name;
-	struct socket_smack *ssp = sock->sk->sk_security;
-	char *hostsp;
-	int rc;
 
 	/*
 	 * Perfectly reasonable for this to be NULL
@@ -2272,22 +2272,7 @@ static int smack_socket_sendmsg(struct socket *sock, struct msghdr *msg,
 	if (sip == NULL || sip->sin_family != PF_INET)
 		return 0;
 
-	hostsp = smack_host_label(sip);
-	if (hostsp == NULL) {
-		if (ssp->smk_labeled != SMACK_CIPSO_SOCKET)
-			return smack_netlabel(sock->sk, SMACK_CIPSO_SOCKET);
-		return 0;
-	}
-
-	rc = smk_access(ssp->smk_out, hostsp, MAY_WRITE);
-	if (rc != 0)
-		return rc;
-
-	if (ssp->smk_labeled != SMACK_UNLABELED_SOCKET)
-		return smack_netlabel(sock->sk, SMACK_UNLABELED_SOCKET);
-
-	return 0;
-
+	return smack_netlabel_send(sock->sk, sip);
 }
 
 
@@ -2492,31 +2477,24 @@ static int smack_socket_getpeersec_dgram(struct socket *sock,
 }
 
 /**
- * smack_sock_graft - graft access state between two sockets
- * @sk: fresh sock
- * @parent: donor socket
+ * smack_sock_graft - Initialize a newly created socket with an existing sock
+ * @sk: child sock
+ * @parent: parent socket
  *
- * Sets the netlabel socket state on sk from parent
+ * Set the smk_{in,out} state of an existing sock based on the process that
+ * is creating the new socket.
  */
 static void smack_sock_graft(struct sock *sk, struct socket *parent)
 {
 	struct socket_smack *ssp;
-	int rc;
-
-	if (sk == NULL)
-		return;
 
-	if (sk->sk_family != PF_INET && sk->sk_family != PF_INET6)
+	if (sk == NULL ||
+	    (sk->sk_family != PF_INET && sk->sk_family != PF_INET6))
 		return;
 
 	ssp = sk->sk_security;
 	ssp->smk_in = ssp->smk_out = current_security();
-	ssp->smk_packet[0] = '\0';
-
-	rc = smack_netlabel(sk, SMACK_CIPSO_SOCKET);
-	if (rc != 0)
-		printk(KERN_WARNING "Smack: \"%s\" netlbl error %d.\n",
-		       __func__, -rc);
+	/* cssp->smk_packet is already set in smack_inet_csk_clone() */
 }
 
 /**
@@ -2531,35 +2509,82 @@ static void smack_sock_graft(struct sock *sk, struct socket *parent)
 static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
 				   struct request_sock *req)
 {
-	struct netlbl_lsm_secattr skb_secattr;
+	u16 family = sk->sk_family;
 	struct socket_smack *ssp = sk->sk_security;
+	struct netlbl_lsm_secattr secattr;
+	struct sockaddr_in addr;
+	struct iphdr *hdr;
 	char smack[SMK_LABELLEN];
 	int rc;
 
-	if (skb == NULL)
-		return -EACCES;
+	/* handle mapped IPv4 packets arriving via IPv6 sockets */
+	if (family == PF_INET6 && skb->protocol == htons(ETH_P_IP))
+		family = PF_INET;
 
-	netlbl_secattr_init(&skb_secattr);
-	rc = netlbl_skbuff_getattr(skb, sk->sk_family, &skb_secattr);
+	netlbl_secattr_init(&secattr);
+	rc = netlbl_skbuff_getattr(skb, family, &secattr);
 	if (rc == 0)
-		smack_from_secattr(&skb_secattr, smack);
+		smack_from_secattr(&secattr, smack);
 	else
 		strncpy(smack, smack_known_huh.smk_known, SMK_MAXLEN);
-	netlbl_secattr_destroy(&skb_secattr);
+	netlbl_secattr_destroy(&secattr);
+
 	/*
-	 * Receiving a packet requires that the other end
-	 * be able to write here. Read access is not required.
-	 *
-	 * If the request is successful save the peer's label
-	 * so that SO_PEERCRED can report it.
+	 * Receiving a packet requires that the other end be able to write
+	 * here. Read access is not required.
 	 */
 	rc = smk_access(smack, ssp->smk_in, MAY_WRITE);
-	if (rc == 0)
-		strncpy(ssp->smk_packet, smack, SMK_MAXLEN);
+	if (rc != 0)
+		return rc;
+
+	/*
+	 * Save the peer's label in the request_sock so we can later setup
+	 * smk_packet in the child socket so that SO_PEERCRED can report it.
+	 */
+	req->peer_secid = smack_to_secid(smack);
+
+	/*
+	 * We need to decide if we want to label the incoming connection here
+	 * if we do we only need to label the request_sock and the stack will
+	 * propogate the wire-label to the sock when it is created.
+	 */
+	hdr = ip_hdr(skb);
+	addr.sin_addr.s_addr = hdr->saddr;
+	rcu_read_lock();
+	if (smack_host_label(&addr) == NULL) {
+		rcu_read_unlock();
+		netlbl_secattr_init(&secattr);
+		smack_to_secattr(smack, &secattr);
+		rc = netlbl_req_setattr(req, &secattr);
+		netlbl_secattr_destroy(&secattr);
+	} else {
+		rcu_read_unlock();
+		netlbl_req_delattr(req);
+	}
 
 	return rc;
 }
 
+/**
+ * smack_inet_csk_clone - Copy the connection information to the new socket
+ * @sk: the new socket
+ * @req: the connection's request_sock
+ *
+ * Transfer the connection's peer label to the newly created socket.
+ */
+static void smack_inet_csk_clone(struct sock *sk,
+				 const struct request_sock *req)
+{
+	struct socket_smack *ssp = sk->sk_security;
+	char *smack;
+
+	if (req->peer_secid != 0) {
+		smack = smack_from_secid(req->peer_secid);
+		strncpy(ssp->smk_packet, smack, SMK_MAXLEN);
+	} else
+		ssp->smk_packet[0] = '\0';
+}
+
 /*
  * Key management security hooks
  *
@@ -2911,6 +2936,7 @@ struct security_operations smack_ops = {
 	.sk_free_security = 		smack_sk_free_security,
 	.sock_graft = 			smack_sock_graft,
 	.inet_conn_request = 		smack_inet_conn_request,
+	.inet_csk_clone =		smack_inet_csk_clone,
 
  /* key management security hooks */
 #ifdef CONFIG_KEYS
-- 
cgit v1.2.3


From d2dd14ac1847082d4bb955619e86ed315c0ecd20 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Sat, 28 Mar 2009 21:34:41 +0100
Subject: i2c-nforce2: Add support for MCP67, MCP73, MCP78S and MCP79

The MCP78S and MCP79 appear to be compatible with the previous nForce
chips as far as the SMBus controller is concerned. The MCP67 and MCP73
were not tested yet but I'd be very surprised if they weren't
compatible too.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Oleg Ryjkov <olegr@olegr.ca>
Cc: Malcolm Lalkaka <mlalkaka@gmail.com>
Cc: Zbigniew Luszpinski <zbiggy@o2.pl>
---
 Documentation/i2c/busses/i2c-nforce2 | 12 ++++++++----
 drivers/i2c/busses/i2c-nforce2.c     | 12 ++++++++++--
 include/linux/pci_ids.h              |  4 ++++
 3 files changed, 22 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/Documentation/i2c/busses/i2c-nforce2 b/Documentation/i2c/busses/i2c-nforce2
index fae3495bcbaf..9698c396b830 100644
--- a/Documentation/i2c/busses/i2c-nforce2
+++ b/Documentation/i2c/busses/i2c-nforce2
@@ -7,10 +7,14 @@ Supported adapters:
   * nForce3 250Gb MCP          10de:00E4 
   * nForce4 MCP                10de:0052
   * nForce4 MCP-04             10de:0034
-  * nForce4 MCP51              10de:0264
-  * nForce4 MCP55              10de:0368
-  * nForce4 MCP61              10de:03EB
-  * nForce4 MCP65              10de:0446
+  * nForce MCP51               10de:0264
+  * nForce MCP55               10de:0368
+  * nForce MCP61               10de:03EB
+  * nForce MCP65               10de:0446
+  * nForce MCP67               10de:0542
+  * nForce MCP73               10de:07D8
+  * nForce MCP78S              10de:0752
+  * nForce MCP79               10de:0AA2
 
 Datasheet: not publicly available, but seems to be similar to the
            AMD-8111 SMBus 2.0 adapter.
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 05af6cd7f270..2ff4683703a8 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -31,10 +31,14 @@
     nForce3 250Gb MCP		00E4
     nForce4 MCP			0052
     nForce4 MCP-04		0034
-    nForce4 MCP51		0264
-    nForce4 MCP55		0368
+    nForce MCP51		0264
+    nForce MCP55		0368
     nForce MCP61		03EB
     nForce MCP65		0446
+    nForce MCP67		0542
+    nForce MCP73		07D8
+    nForce MCP78S		0752
+    nForce MCP79		0AA2
 
     This driver supports the 2 SMBuses that are included in the MCP of the
     nForce2/3/4/5xx chipsets.
@@ -315,6 +319,10 @@ static struct pci_device_id nforce2_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP65_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP78S_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP79_SMBUS) },
 	{ 0 }
 };
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 05dfa7c4fb64..5109fecde284 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1237,6 +1237,7 @@
 #define PCI_DEVICE_ID_NVIDIA_NVENET_21              0x0451
 #define PCI_DEVICE_ID_NVIDIA_NVENET_22              0x0452
 #define PCI_DEVICE_ID_NVIDIA_NVENET_23              0x0453
+#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_SMBUS     0x0542
 #define PCI_DEVICE_ID_NVIDIA_NVENET_24              0x054C
 #define PCI_DEVICE_ID_NVIDIA_NVENET_25              0x054D
 #define PCI_DEVICE_ID_NVIDIA_NVENET_26              0x054E
@@ -1247,11 +1248,14 @@
 #define PCI_DEVICE_ID_NVIDIA_NVENET_31              0x07DF
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_IDE       0x0560
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE       0x056C
+#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP78S_SMBUS    0x0752
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE       0x0759
 #define PCI_DEVICE_ID_NVIDIA_NVENET_32              0x0760
 #define PCI_DEVICE_ID_NVIDIA_NVENET_33              0x0761
 #define PCI_DEVICE_ID_NVIDIA_NVENET_34              0x0762
 #define PCI_DEVICE_ID_NVIDIA_NVENET_35              0x0763
+#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_SMBUS     0x07D8
+#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP79_SMBUS     0x0AA2
 #define PCI_DEVICE_ID_NVIDIA_NVENET_36              0x0AB0
 #define PCI_DEVICE_ID_NVIDIA_NVENET_37              0x0AB1
 #define PCI_DEVICE_ID_NVIDIA_NVENET_38              0x0AB2
-- 
cgit v1.2.3


From eff9ec95efaaf6b12d230f0ea7d3c295d3bc9d57 Mon Sep 17 00:00:00 2001
From: Marco Aurelio da Costa <costa@gamic.com>
Date: Sat, 28 Mar 2009 21:34:44 +0100
Subject: i2c-algo-pca: Add PCA9665 support

Add support for the PCA9665 I2C controller.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/i2c/algos/i2c-algo-pca.c      | 180 +++++++++++++++++++++++++++++++---
 drivers/i2c/busses/Kconfig            |   8 +-
 drivers/i2c/busses/i2c-pca-isa.c      |  14 ++-
 drivers/i2c/busses/i2c-pca-platform.c |   9 +-
 include/linux/i2c-algo-pca.h          |  33 ++++++-
 5 files changed, 216 insertions(+), 28 deletions(-)

(limited to 'include')

diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index 943d70ee5d59..a8e51bd1a4f5 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -46,6 +46,14 @@ static int i2c_debug;
 #define pca_wait(adap) adap->wait_for_completion(adap->data)
 #define pca_reset(adap) adap->reset_chip(adap->data)
 
+static void pca9665_reset(void *pd)
+{
+	struct i2c_algo_pca_data *adap = pd;
+	pca_outw(adap, I2C_PCA_INDPTR, I2C_PCA_IPRESET);
+	pca_outw(adap, I2C_PCA_IND, 0xA5);
+	pca_outw(adap, I2C_PCA_IND, 0x5A);
+}
+
 /*
  * Generate a start condition on the i2c bus.
  *
@@ -333,27 +341,171 @@ static const struct i2c_algorithm pca_algo = {
 	.functionality	= pca_func,
 };
 
-static int pca_init(struct i2c_adapter *adap)
+static unsigned int pca_probe_chip(struct i2c_adapter *adap)
 {
-	static int freqs[] = {330,288,217,146,88,59,44,36};
-	int clock;
 	struct i2c_algo_pca_data *pca_data = adap->algo_data;
-
-	if (pca_data->i2c_clock > 7) {
-		printk(KERN_WARNING "%s: Invalid I2C clock speed selected. Trying default.\n",
-			adap->name);
-		pca_data->i2c_clock = I2C_PCA_CON_59kHz;
+	/* The trick here is to check if there is an indirect register
+	 * available. If there is one, we will read the value we first
+	 * wrote on I2C_PCA_IADR. Otherwise, we will read the last value
+	 * we wrote on I2C_PCA_ADR
+	 */
+	pca_outw(pca_data, I2C_PCA_INDPTR, I2C_PCA_IADR);
+	pca_outw(pca_data, I2C_PCA_IND, 0xAA);
+	pca_outw(pca_data, I2C_PCA_INDPTR, I2C_PCA_ITO);
+	pca_outw(pca_data, I2C_PCA_IND, 0x00);
+	pca_outw(pca_data, I2C_PCA_INDPTR, I2C_PCA_IADR);
+	if (pca_inw(pca_data, I2C_PCA_IND) == 0xAA) {
+		printk(KERN_INFO "%s: PCA9665 detected.\n", adap->name);
+		return I2C_PCA_CHIP_9665;
+	} else {
+		printk(KERN_INFO "%s: PCA9564 detected.\n", adap->name);
+		return I2C_PCA_CHIP_9564;
 	}
+}
+
+static int pca_init(struct i2c_adapter *adap)
+{
+	struct i2c_algo_pca_data *pca_data = adap->algo_data;
 
 	adap->algo = &pca_algo;
 
-	pca_reset(pca_data);
+	if (pca_probe_chip(adap) == I2C_PCA_CHIP_9564) {
+		static int freqs[] = {330, 288, 217, 146, 88, 59, 44, 36};
+		int clock;
+
+		if (pca_data->i2c_clock > 7) {
+			switch (pca_data->i2c_clock) {
+			case 330000:
+				pca_data->i2c_clock = I2C_PCA_CON_330kHz;
+				break;
+			case 288000:
+				pca_data->i2c_clock = I2C_PCA_CON_288kHz;
+				break;
+			case 217000:
+				pca_data->i2c_clock = I2C_PCA_CON_217kHz;
+				break;
+			case 146000:
+				pca_data->i2c_clock = I2C_PCA_CON_146kHz;
+				break;
+			case 88000:
+				pca_data->i2c_clock = I2C_PCA_CON_88kHz;
+				break;
+			case 59000:
+				pca_data->i2c_clock = I2C_PCA_CON_59kHz;
+				break;
+			case 44000:
+				pca_data->i2c_clock = I2C_PCA_CON_44kHz;
+				break;
+			case 36000:
+				pca_data->i2c_clock = I2C_PCA_CON_36kHz;
+				break;
+			default:
+				printk(KERN_WARNING
+					"%s: Invalid I2C clock speed selected."
+					" Using default 59kHz.\n", adap->name);
+			pca_data->i2c_clock = I2C_PCA_CON_59kHz;
+			}
+		} else {
+			printk(KERN_WARNING "%s: "
+				"Choosing the clock frequency based on "
+				"index is deprecated."
+				" Use the nominal frequency.\n", adap->name);
+		}
+
+		pca_reset(pca_data);
+
+		clock = pca_clock(pca_data);
+		printk(KERN_INFO "%s: Clock frequency is %dkHz\n",
+		     adap->name, freqs[clock]);
+
+		pca_set_con(pca_data, I2C_PCA_CON_ENSIO | clock);
+	} else {
+		int clock;
+		int mode;
+		int tlow, thi;
+		/* Values can be found on PCA9665 datasheet section 7.3.2.6 */
+		int min_tlow, min_thi;
+		/* These values are the maximum raise and fall values allowed
+		 * by the I2C operation mode (Standard, Fast or Fast+)
+		 * They are used (added) below to calculate the clock dividers
+		 * of PCA9665. Note that they are slightly different of the
+		 * real maximum, to allow the change on mode exactly on the
+		 * maximum clock rate for each mode
+		 */
+		int raise_fall_time;
+
+		struct i2c_algo_pca_data *pca_data = adap->algo_data;
+
+		/* Ignore the reset function from the module,
+		 * we can use the parallel bus reset
+		 */
+		pca_data->reset_chip = pca9665_reset;
+
+		if (pca_data->i2c_clock > 1265800) {
+			printk(KERN_WARNING "%s: I2C clock speed too high."
+				" Using 1265.8kHz.\n", adap->name);
+			pca_data->i2c_clock = 1265800;
+		}
+
+		if (pca_data->i2c_clock < 60300) {
+			printk(KERN_WARNING "%s: I2C clock speed too low."
+				" Using 60.3kHz.\n", adap->name);
+			pca_data->i2c_clock = 60300;
+		}
+
+		/* To avoid integer overflow, use clock/100 for calculations */
+		clock = pca_clock(pca_data) / 100;
+
+		if (pca_data->i2c_clock > 10000) {
+			mode = I2C_PCA_MODE_TURBO;
+			min_tlow = 14;
+			min_thi  = 5;
+			raise_fall_time = 22; /* Raise 11e-8s, Fall 11e-8s */
+		} else if (pca_data->i2c_clock > 4000) {
+			mode = I2C_PCA_MODE_FASTP;
+			min_tlow = 17;
+			min_thi  = 9;
+			raise_fall_time = 22; /* Raise 11e-8s, Fall 11e-8s */
+		} else if (pca_data->i2c_clock > 1000) {
+			mode = I2C_PCA_MODE_FAST;
+			min_tlow = 44;
+			min_thi  = 20;
+			raise_fall_time = 58; /* Raise 29e-8s, Fall 29e-8s */
+		} else {
+			mode = I2C_PCA_MODE_STD;
+			min_tlow = 157;
+			min_thi  = 134;
+			raise_fall_time = 127; /* Raise 29e-8s, Fall 98e-8s */
+		}
+
+		/* The minimum clock that respects the thi/tlow = 134/157 is
+		 * 64800 Hz. Below that, we have to fix the tlow to 255 and
+		 * calculate the thi factor.
+		 */
+		if (clock < 648) {
+			tlow = 255;
+			thi = 1000000 - clock * raise_fall_time;
+			thi /= (I2C_PCA_OSC_PER * clock) - tlow;
+		} else {
+			tlow = (1000000 - clock * raise_fall_time) * min_tlow;
+			tlow /= I2C_PCA_OSC_PER * clock * (min_thi + min_tlow);
+			thi = tlow * min_thi / min_tlow;
+		}
+
+		pca_reset(pca_data);
 
-	clock = pca_clock(pca_data);
-	printk(KERN_INFO "%s: Clock frequency is %dkHz\n", adap->name,
-	       freqs[clock]);
+		printk(KERN_INFO
+		     "%s: Clock frequency is %dHz\n", adap->name, clock * 100);
 
-	pca_set_con(pca_data, I2C_PCA_CON_ENSIO | clock);
+		pca_outw(pca_data, I2C_PCA_INDPTR, I2C_PCA_IMODE);
+		pca_outw(pca_data, I2C_PCA_IND, mode);
+		pca_outw(pca_data, I2C_PCA_INDPTR, I2C_PCA_ISCLL);
+		pca_outw(pca_data, I2C_PCA_IND, tlow);
+		pca_outw(pca_data, I2C_PCA_INDPTR, I2C_PCA_ISCLH);
+		pca_outw(pca_data, I2C_PCA_IND, thi);
+
+		pca_set_con(pca_data, I2C_PCA_CON_ENSIO);
+	}
 	udelay(500); /* 500 us for oscilator to stabilise */
 
 	return 0;
@@ -388,7 +540,7 @@ EXPORT_SYMBOL(i2c_pca_add_numbered_bus);
 
 MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>, "
 	"Wolfram Sang <w.sang@pengutronix.de>");
-MODULE_DESCRIPTION("I2C-Bus PCA9564 algorithm");
+MODULE_DESCRIPTION("I2C-Bus PCA9564/PCA9665 algorithm");
 MODULE_LICENSE("GPL");
 
 module_param(i2c_debug, int, 0);
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 7f95905bbb9d..68650643d116 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -617,12 +617,12 @@ config I2C_ELEKTOR
 	  will be called i2c-elektor.
 
 config I2C_PCA_ISA
-	tristate "PCA9564 on an ISA bus"
+	tristate "PCA9564/PCA9665 on an ISA bus"
 	depends on ISA
 	select I2C_ALGOPCA
 	default n
 	help
-	  This driver supports ISA boards using the Philips PCA9564
+	  This driver supports ISA boards using the Philips PCA9564/PCA9665
 	  parallel bus to I2C bus controller.
 
 	  This driver can also be built as a module.  If so, the module
@@ -634,11 +634,11 @@ config I2C_PCA_ISA
 	  time).  If unsure, say N.
 
 config I2C_PCA_PLATFORM
-	tristate "PCA9564 as platform device"
+	tristate "PCA9564/PCA9665 as platform device"
 	select I2C_ALGOPCA
 	default n
 	help
-	  This driver supports a memory mapped Philips PCA9564
+	  This driver supports a memory mapped Philips PCA9564/PCA9665
 	  parallel bus to I2C bus controller.
 
 	  This driver can also be built as a module.  If so, the module
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index c420a7c0f3e4..0cc8017b3f64 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -41,7 +41,7 @@ static int irq = -1;
 
 /* Data sheet recommends 59kHz for 100kHz operation due to variation
  * in the actual clock rate */
-static int clock  = I2C_PCA_CON_59kHz;
+static int clock  = 59000;
 
 static wait_queue_head_t pca_wait;
 
@@ -103,7 +103,7 @@ static struct i2c_algo_pca_data pca_isa_data = {
 static struct i2c_adapter pca_isa_ops = {
 	.owner          = THIS_MODULE,
 	.algo_data	= &pca_isa_data,
-	.name		= "PCA9564 ISA Adapter",
+	.name		= "PCA9564/PCA9665 ISA Adapter",
 	.timeout	= 100,
 };
 
@@ -196,7 +196,7 @@ static void __exit pca_isa_exit(void)
 }
 
 MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>");
-MODULE_DESCRIPTION("ISA base PCA9564 driver");
+MODULE_DESCRIPTION("ISA base PCA9564/PCA9665 driver");
 MODULE_LICENSE("GPL");
 
 module_param(base, ulong, 0);
@@ -205,7 +205,13 @@ MODULE_PARM_DESC(base, "I/O base address");
 module_param(irq, int, 0);
 MODULE_PARM_DESC(irq, "IRQ");
 module_param(clock, int, 0);
-MODULE_PARM_DESC(clock, "Clock rate as described in table 1 of PCA9564 datasheet");
+MODULE_PARM_DESC(clock, "Clock rate in hertz.\n\t\t"
+		"For PCA9564: 330000,288000,217000,146000,"
+		"88000,59000,44000,36000\n"
+		"\t\tFor PCA9665:\tStandard: 60300 - 100099\n"
+		"\t\t\t\tFast: 100100 - 400099\n"
+		"\t\t\t\tFast+: 400100 - 10000099\n"
+		"\t\t\t\tTurbo: Up to 1265800");
 
 module_init(pca_isa_init);
 module_exit(pca_isa_exit);
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index 6bb15ad0a6b6..51d179bbddf9 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -172,8 +172,9 @@ static int __devinit i2c_pca_pf_probe(struct platform_device *pdev)
 
 	i2c->adap.nr = pdev->id >= 0 ? pdev->id : 0;
 	i2c->adap.owner = THIS_MODULE;
-	snprintf(i2c->adap.name, sizeof(i2c->adap.name), "PCA9564 at 0x%08lx",
-		(unsigned long) res->start);
+	snprintf(i2c->adap.name, sizeof(i2c->adap.name),
+		 "PCA9564/PCA9665 at 0x%08lx",
+		 (unsigned long) res->start);
 	i2c->adap.algo_data = &i2c->algo_data;
 	i2c->adap.dev.parent = &pdev->dev;
 	i2c->adap.timeout = platform_data->timeout;
@@ -246,7 +247,7 @@ e_remap:
 e_alloc:
 	release_mem_region(res->start, res_len(res));
 e_print:
-	printk(KERN_ERR "Registering PCA9564 FAILED! (%d)\n", ret);
+	printk(KERN_ERR "Registering PCA9564/PCA9665 FAILED! (%d)\n", ret);
 	return ret;
 }
 
@@ -290,7 +291,7 @@ static void __exit i2c_pca_pf_exit(void)
 }
 
 MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
-MODULE_DESCRIPTION("I2C-PCA9564 platform driver");
+MODULE_DESCRIPTION("I2C-PCA9564/PCA9665 platform driver");
 MODULE_LICENSE("GPL");
 
 module_init(i2c_pca_pf_init);
diff --git a/include/linux/i2c-algo-pca.h b/include/linux/i2c-algo-pca.h
index adcb3dc7ac26..1364d62e2fbe 100644
--- a/include/linux/i2c-algo-pca.h
+++ b/include/linux/i2c-algo-pca.h
@@ -1,7 +1,14 @@
 #ifndef _LINUX_I2C_ALGO_PCA_H
 #define _LINUX_I2C_ALGO_PCA_H
 
-/* Clock speeds for the bus */
+/* Chips known to the pca algo */
+#define I2C_PCA_CHIP_9564	0x00
+#define I2C_PCA_CHIP_9665	0x01
+
+/* Internal period for PCA9665 oscilator */
+#define I2C_PCA_OSC_PER		3 /* e10-8s */
+
+/* Clock speeds for the bus for PCA9564*/
 #define I2C_PCA_CON_330kHz	0x00
 #define I2C_PCA_CON_288kHz	0x01
 #define I2C_PCA_CON_217kHz	0x02
@@ -18,6 +25,26 @@
 #define I2C_PCA_ADR		0x02 /* OWN ADR Read/Write */
 #define I2C_PCA_CON		0x03 /* CONTROL Read/Write */
 
+/* PCA9665 registers */
+#define I2C_PCA_INDPTR          0x00 /* INDIRECT Pointer Write Only */
+#define I2C_PCA_IND             0x02 /* INDIRECT Read/Write */
+
+/* PCA9665 indirect registers */
+#define I2C_PCA_ICOUNT          0x00 /* Byte Count for buffered mode */
+#define I2C_PCA_IADR            0x01 /* OWN ADR */
+#define I2C_PCA_ISCLL           0x02 /* SCL LOW period */
+#define I2C_PCA_ISCLH           0x03 /* SCL HIGH period */
+#define I2C_PCA_ITO             0x04 /* TIMEOUT */
+#define I2C_PCA_IPRESET         0x05 /* Parallel bus reset */
+#define I2C_PCA_IMODE           0x06 /* I2C Bus mode */
+
+/* PCA9665 I2C bus mode */
+#define I2C_PCA_MODE_STD        0x00 /* Standard mode */
+#define I2C_PCA_MODE_FAST       0x01 /* Fast mode */
+#define I2C_PCA_MODE_FASTP      0x02 /* Fast Plus mode */
+#define I2C_PCA_MODE_TURBO      0x03 /* Turbo mode */
+
+
 #define I2C_PCA_CON_AA		0x80 /* Assert Acknowledge */
 #define I2C_PCA_CON_ENSIO	0x40 /* Enable */
 #define I2C_PCA_CON_STA		0x20 /* Start */
@@ -31,7 +58,9 @@ struct i2c_algo_pca_data {
 	int  (*read_byte)		(void *data, int reg);
 	int  (*wait_for_completion)	(void *data);
 	void (*reset_chip)		(void *data);
-	/* i2c_clock values are defined in linux/i2c-algo-pca.h */
+	/* For PCA9564, use one of the predefined frequencies:
+	 * 330000, 288000, 217000, 146000, 88000, 59000, 44000, 36000
+	 * For PCA9665, use the frequency you want here. */
 	unsigned int			i2c_clock;
 };
 
-- 
cgit v1.2.3


From 8e99ada8deaa9033600cd2c7d0a9366b0e99ab68 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <w.sang@pengutronix.de>
Date: Sat, 28 Mar 2009 21:34:45 +0100
Subject: i2c-algo-pca: Rework waiting for a free bus

Waiting for a free bus now accepts the timeout value in jiffies and does
proper checking using time_before.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 arch/sh/boards/board-sh7785lcr.c |  2 +-
 drivers/i2c/algos/i2c-algo-pca.c | 17 ++++++++++-------
 drivers/i2c/busses/i2c-pca-isa.c |  2 +-
 include/linux/i2c-pca-platform.h |  2 +-
 4 files changed, 13 insertions(+), 10 deletions(-)

(limited to 'include')

diff --git a/arch/sh/boards/board-sh7785lcr.c b/arch/sh/boards/board-sh7785lcr.c
index 94c0296bc35d..6f94f17adc46 100644
--- a/arch/sh/boards/board-sh7785lcr.c
+++ b/arch/sh/boards/board-sh7785lcr.c
@@ -229,7 +229,7 @@ static struct resource i2c_resources[] = {
 static struct i2c_pca9564_pf_platform_data i2c_platform_data = {
 	.gpio			= 0,
 	.i2c_clock_speed	= I2C_PCA_CON_330kHz,
-	.timeout		= 100,
+	.timeout		= HZ,
 };
 
 static struct platform_device i2c_device = {
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index a8e51bd1a4f5..9e134fad7bda 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/delay.h>
+#include <linux/jiffies.h>
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/i2c.h>
@@ -186,14 +187,16 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
 	int numbytes = 0;
 	int state;
 	int ret;
-	int timeout = i2c_adap->timeout;
+	unsigned long timeout = jiffies + i2c_adap->timeout;
 
-	while ((state = pca_status(adap)) != 0xf8 && timeout--) {
-		msleep(10);
-	}
-	if (state != 0xf8) {
-		dev_dbg(&i2c_adap->dev, "bus is not idle. status is %#04x\n", state);
-		return -EAGAIN;
+	while (pca_status(adap) != 0xf8) {
+		if (time_before(jiffies, timeout)) {
+			msleep(10);
+		} else {
+			dev_dbg(&i2c_adap->dev, "bus is not idle. status is "
+				"%#04x\n", state);
+			return -EAGAIN;
+		}
 	}
 
 	DEB1("{{{ XFER %d messages\n", num);
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index 0cc8017b3f64..b9403fdfb6d8 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -104,7 +104,7 @@ static struct i2c_adapter pca_isa_ops = {
 	.owner          = THIS_MODULE,
 	.algo_data	= &pca_isa_data,
 	.name		= "PCA9564/PCA9665 ISA Adapter",
-	.timeout	= 100,
+	.timeout	= HZ,
 };
 
 static int __devinit pca_isa_match(struct device *dev, unsigned int id)
diff --git a/include/linux/i2c-pca-platform.h b/include/linux/i2c-pca-platform.h
index 3d191873f2d1..aba33759dec4 100644
--- a/include/linux/i2c-pca-platform.h
+++ b/include/linux/i2c-pca-platform.h
@@ -6,7 +6,7 @@ struct i2c_pca9564_pf_platform_data {
 				 * not supplied (negative value), but it
 				 * cannot exit some error conditions then */
 	int i2c_clock_speed;	/* values are defined in linux/i2c-algo-pca.h */
-	int timeout;		/* timeout = this value * 10us */
+	int timeout;		/* timeout in jiffies */
 };
 
 #endif /* I2C_PCA9564_PLATFORM_H */
-- 
cgit v1.2.3


From 506a8b6c27cb08998dc13069fbdf6eb7ec748b99 Mon Sep 17 00:00:00 2001
From: Flavio Leitner <fbl@sysclose.org>
Date: Sat, 28 Mar 2009 21:34:46 +0100
Subject: i2c-piix4: Add support for the Broadcom HT1100 chipset

Add support for the Broadcom HT1100 LD chipset (SMBus function.)

Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 Documentation/i2c/busses/i2c-piix4 | 2 +-
 drivers/i2c/busses/Kconfig         | 1 +
 drivers/i2c/busses/i2c-piix4.c     | 4 +++-
 include/linux/pci_ids.h            | 1 +
 4 files changed, 6 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/Documentation/i2c/busses/i2c-piix4 b/Documentation/i2c/busses/i2c-piix4
index ef1efa79b1df..f889481762b5 100644
--- a/Documentation/i2c/busses/i2c-piix4
+++ b/Documentation/i2c/busses/i2c-piix4
@@ -4,7 +4,7 @@ Supported adapters:
   * Intel 82371AB PIIX4 and PIIX4E
   * Intel 82443MX (440MX)
     Datasheet: Publicly available at the Intel website
-  * ServerWorks OSB4, CSB5, CSB6 and HT-1000 southbridges
+  * ServerWorks OSB4, CSB5, CSB6, HT-1000 and HT-1100 southbridges
     Datasheet: Only available via NDA from ServerWorks
   * ATI IXP200, IXP300, IXP400, SB600, SB700 and SB800 southbridges
     Datasheet: Not publicly available
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 68650643d116..da809ad0996a 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -132,6 +132,7 @@ config I2C_PIIX4
 	    Serverworks CSB5
 	    Serverworks CSB6
 	    Serverworks HT-1000
+	    Serverworks HT-1100
 	    SMSC Victory66
 
 	  This driver can also be built as a module.  If so, the module
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 63d5e5978046..0249a7d762b9 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -20,7 +20,7 @@
 /*
    Supports:
 	Intel PIIX4, 440MX
-	Serverworks OSB4, CSB5, CSB6, HT-1000
+	Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100
 	ATI IXP200, IXP300, IXP400, SB600, SB700, SB800
 	SMSC Victory66
 
@@ -487,6 +487,8 @@ static struct pci_device_id piix4_ids[] = {
 		     PCI_DEVICE_ID_SERVERWORKS_CSB6) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
 		     PCI_DEVICE_ID_SERVERWORKS_HT1000SB) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
+		     PCI_DEVICE_ID_SERVERWORKS_HT1100LD) },
 	{ 0, }
 };
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 5109fecde284..2c9e8080da5e 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1479,6 +1479,7 @@
 #define PCI_DEVICE_ID_SERVERWORKS_HT1000IDE 0x0214
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2 0x0217
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6LPC 0x0227
+#define PCI_DEVICE_ID_SERVERWORKS_HT1100LD 0x0408
 
 #define PCI_VENDOR_ID_SBE		0x1176
 #define PCI_DEVICE_ID_SBE_WANXL100	0x0301
-- 
cgit v1.2.3


From 795e2fe0a3b69dbc040d7efcf517e0cbad6901d0 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Sat, 28 Mar 2009 23:23:01 +0000
Subject: Annotate struct fs_struct's usage count restriction

Annotate struct fs_struct's usage count to indicate the restrictions upon it.
It may not be incremented, except by clone(CLONE_FS), as this affects the
check in check_unsafe_exec() in fs/exec.c.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/fs_struct.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index a97c053d3a9a..18b467dbe278 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -4,7 +4,10 @@
 #include <linux/path.h>
 
 struct fs_struct {
-	atomic_t count;
+	atomic_t count;	/* This usage count is used by check_unsafe_exec() for
+			 * security checking purposes - therefore it may not be
+			 * incremented, except by clone(CLONE_FS).
+			 */
 	rwlock_t lock;
 	int umask;
 	struct path root, pwd;
-- 
cgit v1.2.3


From 167f3a04d7366d65c7fa9a92f0d604cdcf4a11ae Mon Sep 17 00:00:00 2001
From: Ma Ling <ling.ma@intel.com>
Date: Fri, 20 Mar 2009 14:09:48 +0800
Subject: drm: read EDID extensions from monitor

Usually drm read basic EDID, that is enough for us, but since igital display
were introduced i.e. HDMI monitor, sometime we need to interact with monitor by
EDID extension information,

EDID extensions include audio/video data block, speaker allocation and vendor specific data blocks.

This patch intends to read EDID extensions from digital monitor for users.

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/drm_edid.c | 121 ++++++++++++++++++++++++++++++++++-----------
 include/drm/drm_crtc.h     |   3 +-
 2 files changed, 95 insertions(+), 29 deletions(-)

(limited to 'include')

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index a839a28d8ee6..fab2bdf9c423 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -550,11 +550,20 @@ static int add_detailed_info(struct drm_connector *connector,
 }
 
 #define DDC_ADDR 0x50
-
-unsigned char *drm_do_probe_ddc_edid(struct i2c_adapter *adapter)
+/**
+ * Get EDID information via I2C.
+ *
+ * \param adapter : i2c device adaptor
+ * \param buf     : EDID data buffer to be filled
+ * \param len     : EDID data buffer length
+ * \return 0 on success or -1 on failure.
+ *
+ * Try to fetch EDID information by calling i2c driver function.
+ */
+int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
+			  unsigned char *buf, int len)
 {
 	unsigned char start = 0x0;
-	unsigned char *buf = kmalloc(EDID_LENGTH, GFP_KERNEL);
 	struct i2c_msg msgs[] = {
 		{
 			.addr	= DDC_ADDR,
@@ -564,31 +573,36 @@ unsigned char *drm_do_probe_ddc_edid(struct i2c_adapter *adapter)
 		}, {
 			.addr	= DDC_ADDR,
 			.flags	= I2C_M_RD,
-			.len	= EDID_LENGTH,
+			.len	= len,
 			.buf	= buf,
 		}
 	};
 
-	if (!buf) {
-		dev_warn(&adapter->dev, "unable to allocate memory for EDID "
-			 "block.\n");
-		return NULL;
-	}
-
 	if (i2c_transfer(adapter, msgs, 2) == 2)
-		return buf;
+		return 0;
 
 	dev_info(&adapter->dev, "unable to read EDID block.\n");
-	kfree(buf);
-	return NULL;
+	return -1;
 }
 EXPORT_SYMBOL(drm_do_probe_ddc_edid);
 
-static unsigned char *drm_ddc_read(struct i2c_adapter *adapter)
+/**
+ * Get EDID information.
+ *
+ * \param adapter : i2c device adaptor.
+ * \param buf     : EDID data buffer to be filled
+ * \param len     : EDID data buffer length
+ * \return 0 on success or -1 on failure.
+ *
+ * Initialize DDC, then fetch EDID information
+ * by calling drm_do_probe_ddc_edid function.
+ */
+static int drm_ddc_read(struct i2c_adapter *adapter,
+			unsigned char *buf, int len)
 {
 	struct i2c_algo_bit_data *algo_data = adapter->algo_data;
-	unsigned char *edid = NULL;
 	int i, j;
+	int ret = -1;
 
 	algo_data->setscl(algo_data->data, 1);
 
@@ -616,7 +630,7 @@ static unsigned char *drm_ddc_read(struct i2c_adapter *adapter)
 		msleep(15);
 
 		/* Do the real work */
-		edid = drm_do_probe_ddc_edid(adapter);
+		ret = drm_do_probe_ddc_edid(adapter, buf, len);
 		algo_data->setsda(algo_data->data, 0);
 		algo_data->setscl(algo_data->data, 0);
 		msleep(15);
@@ -632,7 +646,7 @@ static unsigned char *drm_ddc_read(struct i2c_adapter *adapter)
 		msleep(15);
 		algo_data->setscl(algo_data->data, 0);
 		algo_data->setsda(algo_data->data, 0);
-		if (edid)
+		if (ret == 0)
 			break;
 	}
 	/* Release the DDC lines when done or the Apple Cinema HD display
@@ -641,9 +655,31 @@ static unsigned char *drm_ddc_read(struct i2c_adapter *adapter)
 	algo_data->setsda(algo_data->data, 1);
 	algo_data->setscl(algo_data->data, 1);
 
-	return edid;
+	return ret;
+}
+
+static int drm_ddc_read_edid(struct drm_connector *connector,
+			     struct i2c_adapter *adapter,
+			     char *buf, int len)
+{
+	int ret;
+
+	ret = drm_ddc_read(adapter, buf, len);
+	if (ret != 0) {
+		dev_info(&connector->dev->pdev->dev, "%s: no EDID data\n",
+			 drm_get_connector_name(connector));
+		goto end;
+	}
+	if (!edid_is_valid((struct edid *)buf)) {
+		dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",
+			 drm_get_connector_name(connector));
+		ret = -1;
+	}
+end:
+	return ret;
 }
 
+#define MAX_EDID_EXT_NUM 4
 /**
  * drm_get_edid - get EDID data, if available
  * @connector: connector we're probing
@@ -656,24 +692,53 @@ static unsigned char *drm_ddc_read(struct i2c_adapter *adapter)
 struct edid *drm_get_edid(struct drm_connector *connector,
 			  struct i2c_adapter *adapter)
 {
+	int ret;
 	struct edid *edid;
 
-	edid = (struct edid *)drm_ddc_read(adapter);
-	if (!edid) {
-		dev_info(&connector->dev->pdev->dev, "%s: no EDID data\n",
-			 drm_get_connector_name(connector));
-		return NULL;
+	edid = kmalloc(EDID_LENGTH * (MAX_EDID_EXT_NUM + 1),
+		       GFP_KERNEL);
+	if (edid == NULL) {
+		dev_warn(&connector->dev->pdev->dev,
+			 "Failed to allocate EDID\n");
+		goto end;
 	}
-	if (!edid_is_valid(edid)) {
-		dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",
-			 drm_get_connector_name(connector));
-		kfree(edid);
-		return NULL;
+
+	/* Read first EDID block */
+	ret = drm_ddc_read_edid(connector, adapter,
+				(unsigned char *)edid, EDID_LENGTH);
+	if (ret != 0)
+		goto clean_up;
+
+	/* There are EDID extensions to be read */
+	if (edid->extensions != 0) {
+		int edid_ext_num = edid->extensions;
+
+		if (edid_ext_num > MAX_EDID_EXT_NUM) {
+			dev_warn(&connector->dev->pdev->dev,
+				 "The number of extension(%d) is "
+				 "over max (%d), actually read number (%d)\n",
+				 edid_ext_num, MAX_EDID_EXT_NUM,
+				 MAX_EDID_EXT_NUM);
+			/* Reset EDID extension number to be read */
+			edid_ext_num = MAX_EDID_EXT_NUM;
+		}
+		/* Read EDID including extensions too */
+		ret = drm_ddc_read_edid(connector, adapter, (char *)edid,
+					EDID_LENGTH * (edid_ext_num + 1));
+		if (ret != 0)
+			goto clean_up;
+
 	}
 
 	connector->display_info.raw_edid = (char *)edid;
+	goto end;
 
+clean_up:
+	kfree(edid);
+	edid = NULL;
+end:
 	return edid;
+
 }
 EXPORT_SYMBOL(drm_get_edid);
 
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 33ae98ced80e..9022b2468182 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -613,7 +613,8 @@ extern void drm_fb_release(struct drm_file *file_priv);
 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
 extern struct edid *drm_get_edid(struct drm_connector *connector,
 				 struct i2c_adapter *adapter);
-extern unsigned char *drm_do_probe_ddc_edid(struct i2c_adapter *adapter);
+extern int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
+				 unsigned char *buf, int len);
 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
 extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
-- 
cgit v1.2.3


From 40fc6eab599d0087a75fc77eaaf04d769b667f6d Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Thu, 19 Mar 2009 20:44:22 -0400
Subject: radeon: add some new pci ids

This adds some new RS780 pci ids

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 include/drm/drm_pciids.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include')

diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index f3f6718b6eb0..2df74eb09563 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -354,6 +354,8 @@
 	{0x1002, 0x9612, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0x1002, 0x9613, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0x1002, 0x9614, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+	{0x1002, 0x9615, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+	{0x1002, 0x9616, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0, 0, 0}
 
 #define r128_PCI_IDS \
-- 
cgit v1.2.3


From c972d750e4fa3bfee6e7d3635729bf8c9cbb8f0a Mon Sep 17 00:00:00 2001
From: Richard Kennedy <richard@rsk.demon.co.uk>
Date: Wed, 18 Mar 2009 17:26:44 +0000
Subject: drm: reorder struct drm_ioctl_desc to save space on 64 bit builds

shrinks drm_ioctl_desc from 24 bytes to 16 bytes by reordering members
to remove padding.

updates DRM_IOCTL_DEF macro to initialise structure members by name to
handle the structure reorder.

The applied patch reduces data used in drm.ko from 10440 to 9032

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 include/drm/drmP.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index ccbcd13b6ed3..c8c422151431 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -281,16 +281,16 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
 
 struct drm_ioctl_desc {
 	unsigned int cmd;
-	drm_ioctl_t *func;
 	int flags;
+	drm_ioctl_t *func;
 };
 
 /**
  * Creates a driver or general drm_ioctl_desc array entry for the given
  * ioctl, for use by drm_ioctl().
  */
-#define DRM_IOCTL_DEF(ioctl, func, flags) \
-	[DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
+#define DRM_IOCTL_DEF(ioctl, _func, _flags) \
+	[DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
 
 struct drm_magic_entry {
 	struct list_head head;
-- 
cgit v1.2.3


From f23c20c83d523e5f8cda1f8f7ed52fe6afffbe29 Mon Sep 17 00:00:00 2001
From: Ma Ling <ling.ma@intel.com>
Date: Thu, 26 Mar 2009 19:26:23 +0800
Subject: drm: detect hdmi monitor by hdmi identifier (v3)

Sometime we need to communicate with HDMI monitor by sending audio or video
info frame, so we have to know monitor type. However if user utilize HDMI-DVI adapter to connect DVI monitor, hardware detection will incorrectly show the monitor is HDMI. HDMI spec tell us that any device containing IEEE registration Identifier will be treated as HDMI device.  The patch intends to detect HDMI monitor by this rule.

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/drm_edid.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++
 include/drm/drm_crtc.h     |  1 +
 2 files changed, 63 insertions(+)

(limited to 'include')

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index fab2bdf9c423..c67400067b85 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -742,6 +742,68 @@ end:
 }
 EXPORT_SYMBOL(drm_get_edid);
 
+#define HDMI_IDENTIFIER 0x000C03
+#define VENDOR_BLOCK    0x03
+/**
+ * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
+ * @edid: monitor EDID information
+ *
+ * Parse the CEA extension according to CEA-861-B.
+ * Return true if HDMI, false if not or unknown.
+ */
+bool drm_detect_hdmi_monitor(struct edid *edid)
+{
+	char *edid_ext = NULL;
+	int i, hdmi_id, edid_ext_num;
+	int start_offset, end_offset;
+	bool is_hdmi = false;
+
+	/* No EDID or EDID extensions */
+	if (edid == NULL || edid->extensions == 0)
+		goto end;
+
+	/* Chose real EDID extension number */
+	edid_ext_num = edid->extensions > MAX_EDID_EXT_NUM ?
+		       MAX_EDID_EXT_NUM : edid->extensions;
+
+	/* Find CEA extension */
+	for (i = 0; i < edid_ext_num; i++) {
+		edid_ext = (char *)edid + EDID_LENGTH * (i + 1);
+		/* This block is CEA extension */
+		if (edid_ext[0] == 0x02)
+			break;
+	}
+
+	if (i == edid_ext_num)
+		goto end;
+
+	/* Data block offset in CEA extension block */
+	start_offset = 4;
+	end_offset = edid_ext[2];
+
+	/*
+	 * Because HDMI identifier is in Vendor Specific Block,
+	 * search it from all data blocks of CEA extension.
+	 */
+	for (i = start_offset; i < end_offset;
+		/* Increased by data block len */
+		i += ((edid_ext[i] & 0x1f) + 1)) {
+		/* Find vendor specific block */
+		if ((edid_ext[i] >> 5) == VENDOR_BLOCK) {
+			hdmi_id = edid_ext[i + 1] | (edid_ext[i + 2] << 8) |
+				  edid_ext[i + 3] << 16;
+			/* Find HDMI identifier */
+			if (hdmi_id == HDMI_IDENTIFIER)
+				is_hdmi = true;
+			break;
+		}
+	}
+
+end:
+	return is_hdmi;
+}
+EXPORT_SYMBOL(drm_detect_hdmi_monitor);
+
 /**
  * drm_add_edid_modes - add modes from EDID data, if available
  * @connector: connector we're probing
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 9022b2468182..3c1924c010e8 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -732,4 +732,5 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
 				    void *data, struct drm_file *file_priv);
 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
 				    void *data, struct drm_file *file_priv);
+extern bool drm_detect_hdmi_monitor(struct edid *edid);
 #endif /* __DRM_CRTC_H__ */
-- 
cgit v1.2.3


From 503e57630309643562c12f09d4c8a96eb629ee33 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Sun, 29 Mar 2009 12:59:50 +0200
Subject: Fix build error in <linux/irq.h>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

<linux/irq.h> relies on <linux/gfp.h> and <linux/topology.h> having been
included previous.  If not, the errors like below will result.

    CC      arch/mips/mti-malta/malta-int.o
  In file included from arch/mips/mti-malta/malta-int.c:25:
  include/linux/irq.h: In function ‘init_alloc_desc_masks’:
  include/linux/irq.h:444: error: implicit declaration of function ‘cpu_to_node’
  include/linux/irq.h:446: error: ‘GFP_ATOMIC’ undeclared (first use in this function)
  include/linux/irq.h:446: error: (Each undeclared identifier is reported only once
  include/linux/irq.h:446: error: for each function it appears in.)
  make[3]: *** [arch/mips/mti-malta/malta-int.o] Error 1
  make[2]: *** [arch/mips/mti-malta] Error 2
  make[1]: *** [sub-make] Error 2

Fixed by including the two missing headers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/irq.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include')

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 873e4ac11b81..9c62fbe2ef30 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -17,9 +17,11 @@
 #include <linux/cache.h>
 #include <linux/spinlock.h>
 #include <linux/cpumask.h>
+#include <linux/gfp.h>
 #include <linux/irqreturn.h>
 #include <linux/irqnr.h>
 #include <linux/errno.h>
+#include <linux/topology.h>
 
 #include <asm/irq.h>
 #include <asm/ptrace.h>
-- 
cgit v1.2.3


From 4a6a4499693a419a20559c41e33a7bd70bf20a6f Mon Sep 17 00:00:00 2001
From: Jonathan Corbet <corbet@lwn.net>
Date: Fri, 27 Mar 2009 12:24:31 -0600
Subject: Fix a lockdep warning in fasync_helper()

Lockdep gripes if file->f_lock is taken in a no-IRQ situation, since that
is not always the case.  We don't really want to disable IRQs for every
acquisition of f_lock; instead, just move it outside of fasync_lock.

Reported-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---
 fs/fcntl.c         | 10 +++++++---
 include/linux/fs.h |  2 +-
 2 files changed, 8 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/fs/fcntl.c b/fs/fcntl.c
index d865ca66ccba..cc8e4de2fee5 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -531,6 +531,12 @@ int fasync_helper(int fd, struct file * filp, int on, struct fasync_struct **fap
 		if (!new)
 			return -ENOMEM;
 	}
+
+	/*
+	 * We need to take f_lock first since it's not an IRQ-safe
+	 * lock.
+	 */
+	spin_lock(&filp->f_lock);
 	write_lock_irq(&fasync_lock);
 	for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) {
 		if (fa->fa_file == filp) {
@@ -555,14 +561,12 @@ int fasync_helper(int fd, struct file * filp, int on, struct fasync_struct **fap
 		result = 1;
 	}
 out:
-	/* Fix up FASYNC bit while still holding fasync_lock */
-	spin_lock(&filp->f_lock);
 	if (on)
 		filp->f_flags |= FASYNC;
 	else
 		filp->f_flags &= ~FASYNC;
-	spin_unlock(&filp->f_lock);
 	write_unlock_irq(&fasync_lock);
+	spin_unlock(&filp->f_lock);
 	return result;
 }
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7428c6d35e65..2f13c1d77812 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -848,7 +848,7 @@ struct file {
 #define f_dentry	f_path.dentry
 #define f_vfsmnt	f_path.mnt
 	const struct file_operations	*f_op;
-	spinlock_t		f_lock;  /* f_ep_links, f_flags */
+	spinlock_t		f_lock;  /* f_ep_links, f_flags, no IRQ */
 	atomic_long_t		f_count;
 	unsigned int 		f_flags;
 	fmode_t			f_mode;
-- 
cgit v1.2.3


From 952617f2594a8f0340161b52d630488fbde8c852 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Mon, 12 Jan 2009 18:17:14 -0300
Subject: V4L/DVB (10231): v4l2-subdev: add v4l2_ext_controls support

The saa6752hs module needs this.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/v4l2-subdev.c | 6 ++++++
 include/media/v4l2-subdev.h       | 3 +++
 2 files changed, 9 insertions(+)

(limited to 'include')

diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c
index 21208805ea9b..158bc55de166 100644
--- a/drivers/media/video/v4l2-subdev.c
+++ b/drivers/media/video/v4l2-subdev.c
@@ -33,6 +33,12 @@ int v4l2_subdev_command(struct v4l2_subdev *sd, unsigned cmd, void *arg)
 		return v4l2_subdev_call(sd, core, g_ctrl, arg);
 	case VIDIOC_S_CTRL:
 		return v4l2_subdev_call(sd, core, s_ctrl, arg);
+	case VIDIOC_G_EXT_CTRLS:
+		return v4l2_subdev_call(sd, core, g_ext_ctrls, arg);
+	case VIDIOC_S_EXT_CTRLS:
+		return v4l2_subdev_call(sd, core, s_ext_ctrls, arg);
+	case VIDIOC_TRY_EXT_CTRLS:
+		return v4l2_subdev_call(sd, core, try_ext_ctrls, arg);
 	case VIDIOC_QUERYMENU:
 		return v4l2_subdev_call(sd, core, querymenu, arg);
 	case VIDIOC_LOG_STATUS:
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 37b09e56e943..9c1663d91224 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -78,6 +78,9 @@ struct v4l2_subdev_core_ops {
 	int (*queryctrl)(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc);
 	int (*g_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl);
 	int (*s_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl);
+	int (*g_ext_ctrls)(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls);
+	int (*s_ext_ctrls)(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls);
+	int (*try_ext_ctrls)(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls);
 	int (*querymenu)(struct v4l2_subdev *sd, struct v4l2_querymenu *qm);
 	long (*ioctl)(struct v4l2_subdev *sd, unsigned int cmd, void *arg);
 #ifdef CONFIG_VIDEO_ADV_DEBUG
-- 
cgit v1.2.3


From c7d29e2f530654aa0c323aafb94d42a6a718482c Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sun, 18 Jan 2009 19:37:59 -0300
Subject: V4L/DVB (10249): v4l2-common: added v4l2_i2c_tuner_addrs()

Add v4l2_i2c_tuner_addrs() to obtain the various I2C tuner addresses.
This will be used in several drivers, so make this a common function
as we do not want to have these I2C addresses all over the place.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/saa7134/saa7134-core.c | 42 ++++++++++++------------------
 drivers/media/video/v4l2-common.c          | 36 +++++++++++++++++++++++++
 include/media/v4l2-common.h                | 13 +++++++++
 3 files changed, 65 insertions(+), 26 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index ac23ff53543d..829006ebdf34 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -980,35 +980,25 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 
 	/* initialize hardware #2 */
 	if (TUNER_ABSENT != dev->tuner_type) {
-		if (dev->radio_type != UNSET) {
-			v4l2_i2c_new_subdev(&dev->i2c_adap, "tuner", "tuner",
-					dev->radio_addr);
-		}
-		if (dev->tda9887_conf & TDA9887_PRESENT) {
-			unsigned short addrs[] = { 0x42, 0x43, 0x4a, 0x4b,
-						   I2C_CLIENT_END };
+		int has_demod = (dev->tda9887_conf & TDA9887_PRESENT);
 
-			v4l2_i2c_new_probed_subdev(&dev->i2c_adap,
-					"tuner", "tuner", addrs);
-		}
-		if (dev->tuner_addr != ADDR_UNSET) {
+		/* Note: radio tuner address is always filled in,
+		   so we do not need to probe for a radio tuner device. */
+		if (dev->radio_type != UNSET)
 			v4l2_i2c_new_subdev(&dev->i2c_adap,
-					"tuner", "tuner", dev->tuner_addr);
+				"tuner", "tuner", dev->radio_addr);
+		if (has_demod)
+			v4l2_i2c_new_probed_subdev(&dev->i2c_adap, "tuner",
+				"tuner", v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
+		if (dev->tuner_addr == ADDR_UNSET) {
+			enum v4l2_i2c_tuner_type type =
+				has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
+
+			v4l2_i2c_new_probed_subdev(&dev->i2c_adap, "tuner",
+				"tuner", v4l2_i2c_tuner_addrs(type));
 		} else {
-			unsigned short addrs[] = {
-				0x42, 0x43, 0x4a, 0x4b,		/* tda8290 */
-				0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-				0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
-				I2C_CLIENT_END
-			};
-
-			if (dev->tda9887_conf & TDA9887_PRESENT) {
-				v4l2_i2c_new_probed_subdev(&dev->i2c_adap,
-						"tuner", "tuner", addrs + 4);
-			} else {
-				v4l2_i2c_new_probed_subdev(&dev->i2c_adap,
-						"tuner", "tuner", addrs);
-			}
+			v4l2_i2c_new_subdev(&dev->i2c_adap,
+				"tuner", "tuner", dev->tuner_addr);
 		}
 	}
 	saa7134_board_init2(dev);
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 0f450a73477a..26e162f13f7f 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -991,4 +991,40 @@ struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,
 }
 EXPORT_SYMBOL_GPL(v4l2_i2c_new_probed_subdev);
 
+/* Return a list of I2C tuner addresses to probe. Use only if the tuner
+   addresses are unknown. */
+const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type)
+{
+	static const unsigned short radio_addrs[] = {
+#if defined(CONFIG_MEDIA_TUNER_TEA5761) || defined(CONFIG_MEDIA_TUNER_TEA5761_MODULE)
+		0x10,
+#endif
+		0x60,
+		I2C_CLIENT_END
+	};
+	static const unsigned short demod_addrs[] = {
+		0x42, 0x43, 0x4a, 0x4b,
+		I2C_CLIENT_END
+	};
+	static const unsigned short tv_addrs[] = {
+		0x42, 0x43, 0x4a, 0x4b,		/* tda8290 */
+		0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+		0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+		I2C_CLIENT_END
+	};
+
+	switch (type) {
+	case ADDRS_RADIO:
+		return radio_addrs;
+	case ADDRS_DEMOD:
+		return demod_addrs;
+	case ADDRS_TV:
+		return tv_addrs;
+	case ADDRS_TV_WITH_DEMOD:
+		return tv_addrs + 4;
+	}
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(v4l2_i2c_tuner_addrs);
+
 #endif
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 95e74f1874e1..0f864f8daaf2 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -150,6 +150,19 @@ struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,
 void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
 		const struct v4l2_subdev_ops *ops);
 
+enum v4l2_i2c_tuner_type {
+	ADDRS_RADIO,	/* Radio tuner addresses */
+	ADDRS_DEMOD,	/* Demod tuner addresses */
+	ADDRS_TV,	/* TV tuner addresses */
+	/* TV tuner addresses if demod is present, this excludes
+	   addresses used by the demodulator from the list of
+	   candidates. */
+	ADDRS_TV_WITH_DEMOD,
+};
+/* Return a list of I2C tuner addresses to probe. Use only if the tuner
+   addresses are unknown. */
+const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type);
+
 /* ------------------------------------------------------------------------- */
 
 /* Internal ioctls */
-- 
cgit v1.2.3


From 6ca187abb2fc1a52b2a8e0422f3ffce2e3bb7ad0 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 15 Jan 2009 05:53:18 -0300
Subject: V4L/DVB (10251): cx25840: add comments explaining what the init()
 does.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/cx25840/cx25840-core.c | 10 ++++++++++
 include/media/cx25840.h                    | 12 ++++++++++++
 2 files changed, 22 insertions(+)

(limited to 'include')

diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c
index 25eb3bec9e5d..be467b4b9545 100644
--- a/drivers/media/video/cx25840/cx25840-core.c
+++ b/drivers/media/video/cx25840/cx25840-core.c
@@ -1101,6 +1101,16 @@ static void log_audio_status(struct i2c_client *client)
 
 /* ----------------------------------------------------------------------- */
 
+/* This init operation must be called to load the driver's firmware.
+   Without this the audio standard detection will fail and you will
+   only get mono.
+
+   Since loading the firmware is often problematic when the driver is
+   compiled into the kernel I recommend postponing calling this function
+   until the first open of the video device. Another reason for
+   postponing it is that loading this firmware takes a long time (seconds)
+   due to the slow i2c bus speed. So it will speed up the boot process if
+   you can avoid loading the fw as long as the video device isn't used.  */
 static int cx25840_init(struct v4l2_subdev *sd, u32 val)
 {
 	struct cx25840_state *state = to_state(sd);
diff --git a/include/media/cx25840.h b/include/media/cx25840.h
index db431d513f2f..2c3fbaa33f74 100644
--- a/include/media/cx25840.h
+++ b/include/media/cx25840.h
@@ -21,6 +21,18 @@
 #ifndef _CX25840_H_
 #define _CX25840_H_
 
+/* Note that the cx25840 driver requires that the bridge driver calls the
+   v4l2_subdev's init operation in order to load the driver's firmware.
+   Without this the audio standard detection will fail and you will
+   only get mono.
+
+   Since loading the firmware is often problematic when the driver is
+   compiled into the kernel I recommend postponing calling this function
+   until the first open of the video device. Another reason for
+   postponing it is that loading this firmware takes a long time (seconds)
+   due to the slow i2c bus speed. So it will speed up the boot process if
+   you can avoid loading the fw as long as the video device isn't used. */
+
 enum cx25840_video_input {
 	/* Composite video inputs In1-In8 */
 	CX25840_COMPOSITE1 = 1,
-- 
cgit v1.2.3


From b960074fec573fb1b226d9e2686ce51be807cdf1 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sun, 18 Jan 2009 19:59:11 -0300
Subject: V4L/DVB (10271): saa7146: convert to video_ioctl2.

The conversion to video_ioctl2 is the first phase to converting this driver
to the latest v4l2 framework.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/common/saa7146_fops.c  |   36 +-
 drivers/media/common/saa7146_video.c | 1258 ++++++++++++++++------------------
 drivers/media/dvb/ttpci/av7110_v4l.c |  479 +++++++------
 drivers/media/dvb/ttpci/budget-av.c  |   88 +--
 drivers/media/video/hexium_gemini.c  |  292 ++++----
 drivers/media/video/hexium_orion.c   |  103 ++-
 drivers/media/video/mxb.c            |  641 ++++++++---------
 include/media/saa7146_vv.h           |   17 +-
 8 files changed, 1404 insertions(+), 1510 deletions(-)

(limited to 'include')

diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index cf06f4d10ad4..4a27d4eda628 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -308,14 +308,6 @@ static int fops_release(struct file *file)
 	return 0;
 }
 
-static long fops_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-/*
-	DEB_EE(("file:%p, cmd:%d, arg:%li\n", file, cmd, arg));
-*/
-	return video_usercopy(file, cmd, arg, saa7146_video_do_ioctl);
-}
-
 static int fops_mmap(struct file *file, struct vm_area_struct * vma)
 {
 	struct saa7146_fh *fh = file->private_data;
@@ -425,7 +417,7 @@ static const struct v4l2_file_operations video_fops =
 	.write		= fops_write,
 	.poll		= fops_poll,
 	.mmap		= fops_mmap,
-	.ioctl		= fops_ioctl,
+	.ioctl		= video_ioctl2,
 };
 
 static void vv_callback(struct saa7146_dev *dev, unsigned long status)
@@ -452,19 +444,16 @@ static void vv_callback(struct saa7146_dev *dev, unsigned long status)
 	}
 }
 
-static struct video_device device_template =
-{
-	.fops		= &video_fops,
-	.minor		= -1,
-};
-
 int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
 {
-	struct saa7146_vv *vv = kzalloc (sizeof(struct saa7146_vv),GFP_KERNEL);
-	if( NULL == vv ) {
+	struct saa7146_vv *vv = kzalloc(sizeof(struct saa7146_vv), GFP_KERNEL);
+
+	if (vv == NULL) {
 		ERR(("out of memory. aborting.\n"));
 		return -1;
 	}
+	ext_vv->ops = saa7146_video_ioctl_ops;
+	ext_vv->core_ops = &saa7146_video_ioctl_ops;
 
 	DEB_EE(("dev:%p\n",dev));
 
@@ -521,6 +510,7 @@ int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev,
 {
 	struct saa7146_vv *vv = dev->vv_data;
 	struct video_device *vfd;
+	int err;
 
 	DEB_EE(("dev:%p, name:'%s', type:%d\n",dev,name,type));
 
@@ -529,16 +519,18 @@ int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev,
 	if (vfd == NULL)
 		return -ENOMEM;
 
-	memcpy(vfd, &device_template, sizeof(struct video_device));
-	strlcpy(vfd->name, name, sizeof(vfd->name));
+	vfd->fops = &video_fops;
+	vfd->ioctl_ops = dev->ext_vv_data ? &dev->ext_vv_data->ops :
+						&saa7146_video_ioctl_ops;
 	vfd->release = video_device_release;
+	strlcpy(vfd->name, name, sizeof(vfd->name));
 	video_set_drvdata(vfd, dev);
 
-	// fixme: -1 should be an insmod parameter *for the extension* (like "video_nr");
-	if (video_register_device(vfd, type, -1) < 0) {
+	err = video_register_device(vfd, type, -1);
+	if (err < 0) {
 		ERR(("cannot register v4l2 device. skipping.\n"));
 		video_device_release(vfd);
-		return -1;
+		return err;
 	}
 
 	if( VFL_TYPE_GRABBER == type ) {
diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c
index 47fee05eaefb..91b7a4def46c 100644
--- a/drivers/media/common/saa7146_video.c
+++ b/drivers/media/common/saa7146_video.c
@@ -97,172 +97,13 @@ struct saa7146_format* format_by_fourcc(struct saa7146_dev *dev, int fourcc)
 	return NULL;
 }
 
-static int g_fmt(struct saa7146_fh *fh, struct v4l2_format *f)
-{
-	struct saa7146_dev *dev = fh->dev;
-	DEB_EE(("dev:%p, fh:%p\n",dev,fh));
-
-	switch (f->type) {
-	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
-		f->fmt.pix = fh->video_fmt;
-		return 0;
-	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
-		f->fmt.win = fh->ov.win;
-		return 0;
-	case V4L2_BUF_TYPE_VBI_CAPTURE:
-	{
-		f->fmt.vbi = fh->vbi_fmt;
-		return 0;
-	}
-	default:
-		DEB_D(("invalid format type '%d'.\n",f->type));
-		return -EINVAL;
-	}
-}
-
-static int try_win(struct saa7146_dev *dev, struct v4l2_window *win)
-{
-	struct saa7146_vv *vv = dev->vv_data;
-	enum v4l2_field field;
-	int maxw, maxh;
-
-	DEB_EE(("dev:%p\n",dev));
-
-	if (NULL == vv->ov_fb.base) {
-		DEB_D(("no fb base set.\n"));
-		return -EINVAL;
-	}
-	if (NULL == vv->ov_fmt) {
-		DEB_D(("no fb fmt set.\n"));
-		return -EINVAL;
-	}
-	if (win->w.width < 48 || win->w.height <  32) {
-		DEB_D(("min width/height. (%d,%d)\n",win->w.width,win->w.height));
-		return -EINVAL;
-	}
-	if (win->clipcount > 16) {
-		DEB_D(("clipcount too big.\n"));
-		return -EINVAL;
-	}
-
-	field = win->field;
-	maxw  = vv->standard->h_max_out;
-	maxh  = vv->standard->v_max_out;
-
-	if (V4L2_FIELD_ANY == field) {
-		field = (win->w.height > maxh/2)
-			? V4L2_FIELD_INTERLACED
-			: V4L2_FIELD_TOP;
-		}
-	switch (field) {
-	case V4L2_FIELD_TOP:
-	case V4L2_FIELD_BOTTOM:
-	case V4L2_FIELD_ALTERNATE:
-		maxh = maxh / 2;
-		break;
-	case V4L2_FIELD_INTERLACED:
-		break;
-	default: {
-		DEB_D(("no known field mode '%d'.\n",field));
-		return -EINVAL;
-	}
-	}
-
-	win->field = field;
-	if (win->w.width > maxw)
-		win->w.width = maxw;
-	if (win->w.height > maxh)
-		win->w.height = maxh;
-
-	return 0;
-}
-
-static int try_fmt(struct saa7146_fh *fh, struct v4l2_format *f)
-{
-	struct saa7146_dev *dev = fh->dev;
-	struct saa7146_vv *vv = dev->vv_data;
-	int err;
-
-	switch (f->type) {
-	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
-	{
-		struct saa7146_format *fmt;
-		enum v4l2_field field;
-		int maxw, maxh;
-		int calc_bpl;
-
-		DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n",dev,fh));
-
-		fmt = format_by_fourcc(dev,f->fmt.pix.pixelformat);
-		if (NULL == fmt) {
-			return -EINVAL;
-		}
-
-		field = f->fmt.pix.field;
-		maxw  = vv->standard->h_max_out;
-		maxh  = vv->standard->v_max_out;
-
-		if (V4L2_FIELD_ANY == field) {
-			field = (f->fmt.pix.height > maxh/2)
-				? V4L2_FIELD_INTERLACED
-				: V4L2_FIELD_BOTTOM;
-		}
-		switch (field) {
-		case V4L2_FIELD_ALTERNATE: {
-			vv->last_field = V4L2_FIELD_TOP;
-			maxh = maxh / 2;
-			break;
-		}
-		case V4L2_FIELD_TOP:
-		case V4L2_FIELD_BOTTOM:
-			vv->last_field = V4L2_FIELD_INTERLACED;
-			maxh = maxh / 2;
-			break;
-		case V4L2_FIELD_INTERLACED:
-			vv->last_field = V4L2_FIELD_INTERLACED;
-			break;
-		default: {
-			DEB_D(("no known field mode '%d'.\n",field));
-			return -EINVAL;
-		}
-		}
-
-		f->fmt.pix.field = field;
-		if (f->fmt.pix.width > maxw)
-			f->fmt.pix.width = maxw;
-		if (f->fmt.pix.height > maxh)
-			f->fmt.pix.height = maxh;
-
-		calc_bpl = (f->fmt.pix.width * fmt->depth)/8;
-
-		if (f->fmt.pix.bytesperline < calc_bpl)
-			f->fmt.pix.bytesperline = calc_bpl;
-
-		if (f->fmt.pix.bytesperline > (2*PAGE_SIZE * fmt->depth)/8) /* arbitrary constraint */
-			f->fmt.pix.bytesperline = calc_bpl;
-
-		f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
-		DEB_D(("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n",f->fmt.pix.width,f->fmt.pix.height,f->fmt.pix.bytesperline,f->fmt.pix.sizeimage));
-
-		return 0;
-	}
-	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
-		DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n",dev,fh));
-		err = try_win(dev,&f->fmt.win);
-		if (0 != err) {
-			return err;
-		}
-		return 0;
-	default:
-		DEB_EE(("unknown format type '%d'\n",f->type));
-		return -EINVAL;
-	}
-}
+static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f);
 
 int saa7146_start_preview(struct saa7146_fh *fh)
 {
 	struct saa7146_dev *dev = fh->dev;
 	struct saa7146_vv *vv = dev->vv_data;
+	struct v4l2_format fmt;
 	int ret = 0, err = 0;
 
 	DEB_EE(("dev:%p, fh:%p\n",dev,fh));
@@ -294,12 +135,13 @@ int saa7146_start_preview(struct saa7146_fh *fh)
 		return -EBUSY;
 	}
 
-	err = try_win(dev,&fh->ov.win);
+	fmt.fmt.win = fh->ov.win;
+	err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt);
 	if (0 != err) {
 		saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
 		return -EBUSY;
 	}
-
+	fh->ov.win = fmt.fmt.win;
 	vv->ov_data = &fh->ov;
 
 	DEB_D(("%dx%d+%d+%d %s field=%s\n",
@@ -355,58 +197,6 @@ int saa7146_stop_preview(struct saa7146_fh *fh)
 }
 EXPORT_SYMBOL_GPL(saa7146_stop_preview);
 
-static int s_fmt(struct saa7146_fh *fh, struct v4l2_format *f)
-{
-	struct saa7146_dev *dev = fh->dev;
-	struct saa7146_vv *vv = dev->vv_data;
-
-	int err;
-
-	switch (f->type) {
-	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
-		DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n",dev,fh));
-		if (IS_CAPTURE_ACTIVE(fh) != 0) {
-			DEB_EE(("streaming capture is active\n"));
-			return -EBUSY;
-		}
-		err = try_fmt(fh,f);
-		if (0 != err)
-			return err;
-		fh->video_fmt = f->fmt.pix;
-		DEB_EE(("set to pixelformat '%4.4s'\n",(char *)&fh->video_fmt.pixelformat));
-		return 0;
-	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
-		DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n",dev,fh));
-		err = try_win(dev,&f->fmt.win);
-		if (0 != err)
-			return err;
-		mutex_lock(&dev->lock);
-		fh->ov.win    = f->fmt.win;
-		fh->ov.nclips = f->fmt.win.clipcount;
-		if (fh->ov.nclips > 16)
-			fh->ov.nclips = 16;
-		if (copy_from_user(fh->ov.clips,f->fmt.win.clips,sizeof(struct v4l2_clip)*fh->ov.nclips)) {
-			mutex_unlock(&dev->lock);
-			return -EFAULT;
-		}
-
-		/* fh->ov.fh is used to indicate that we have valid overlay informations, too */
-		fh->ov.fh = fh;
-
-		mutex_unlock(&dev->lock);
-
-		/* check if our current overlay is active */
-		if (IS_OVERLAY_ACTIVE(fh) != 0) {
-			saa7146_stop_preview(fh);
-			saa7146_start_preview(fh);
-		}
-		return 0;
-	default:
-		DEB_D(("unknown format type '%d'\n",f->type));
-		return -EINVAL;
-	}
-}
-
 /********************************************************************************/
 /* device controls */
 
@@ -463,132 +253,6 @@ static struct v4l2_queryctrl* ctrl_by_id(int id)
 	return NULL;
 }
 
-static int get_control(struct saa7146_fh *fh, struct v4l2_control *c)
-{
-	struct saa7146_dev *dev = fh->dev;
-	struct saa7146_vv *vv = dev->vv_data;
-
-	const struct v4l2_queryctrl* ctrl;
-	u32 value = 0;
-
-	ctrl = ctrl_by_id(c->id);
-	if (NULL == ctrl)
-		return -EINVAL;
-	switch (c->id) {
-	case V4L2_CID_BRIGHTNESS:
-		value = saa7146_read(dev, BCS_CTRL);
-		c->value = 0xff & (value >> 24);
-		DEB_D(("V4L2_CID_BRIGHTNESS: %d\n",c->value));
-		break;
-	case V4L2_CID_CONTRAST:
-		value = saa7146_read(dev, BCS_CTRL);
-		c->value = 0x7f & (value >> 16);
-		DEB_D(("V4L2_CID_CONTRAST: %d\n",c->value));
-		break;
-	case V4L2_CID_SATURATION:
-		value = saa7146_read(dev, BCS_CTRL);
-		c->value = 0x7f & (value >> 0);
-		DEB_D(("V4L2_CID_SATURATION: %d\n",c->value));
-		break;
-	case V4L2_CID_VFLIP:
-		c->value = vv->vflip;
-		DEB_D(("V4L2_CID_VFLIP: %d\n",c->value));
-		break;
-	case V4L2_CID_HFLIP:
-		c->value = vv->hflip;
-		DEB_D(("V4L2_CID_HFLIP: %d\n",c->value));
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int set_control(struct saa7146_fh *fh, struct v4l2_control *c)
-{
-	struct saa7146_dev *dev = fh->dev;
-	struct saa7146_vv *vv = dev->vv_data;
-
-	const struct v4l2_queryctrl* ctrl;
-
-	ctrl = ctrl_by_id(c->id);
-	if (NULL == ctrl) {
-		DEB_D(("unknown control %d\n",c->id));
-		return -EINVAL;
-	}
-
-	mutex_lock(&dev->lock);
-
-	switch (ctrl->type) {
-	case V4L2_CTRL_TYPE_BOOLEAN:
-	case V4L2_CTRL_TYPE_MENU:
-	case V4L2_CTRL_TYPE_INTEGER:
-		if (c->value < ctrl->minimum)
-			c->value = ctrl->minimum;
-		if (c->value > ctrl->maximum)
-			c->value = ctrl->maximum;
-		break;
-	default:
-		/* nothing */;
-	};
-
-	switch (c->id) {
-	case V4L2_CID_BRIGHTNESS: {
-		u32 value = saa7146_read(dev, BCS_CTRL);
-		value &= 0x00ffffff;
-		value |= (c->value << 24);
-		saa7146_write(dev, BCS_CTRL, value);
-		saa7146_write(dev, MC2, MASK_22 | MASK_06 );
-		break;
-	}
-	case V4L2_CID_CONTRAST: {
-		u32 value = saa7146_read(dev, BCS_CTRL);
-		value &= 0xff00ffff;
-		value |= (c->value << 16);
-		saa7146_write(dev, BCS_CTRL, value);
-		saa7146_write(dev, MC2, MASK_22 | MASK_06 );
-		break;
-	}
-	case V4L2_CID_SATURATION: {
-		u32 value = saa7146_read(dev, BCS_CTRL);
-		value &= 0xffffff00;
-		value |= (c->value << 0);
-		saa7146_write(dev, BCS_CTRL, value);
-		saa7146_write(dev, MC2, MASK_22 | MASK_06 );
-		break;
-	}
-	case V4L2_CID_HFLIP:
-		/* fixme: we can support changing VFLIP and HFLIP here... */
-		if (IS_CAPTURE_ACTIVE(fh) != 0) {
-			DEB_D(("V4L2_CID_HFLIP while active capture.\n"));
-			mutex_unlock(&dev->lock);
-			return -EINVAL;
-		}
-		vv->hflip = c->value;
-		break;
-	case V4L2_CID_VFLIP:
-		if (IS_CAPTURE_ACTIVE(fh) != 0) {
-			DEB_D(("V4L2_CID_VFLIP while active capture.\n"));
-			mutex_unlock(&dev->lock);
-			return -EINVAL;
-		}
-		vv->vflip = c->value;
-		break;
-	default: {
-		mutex_unlock(&dev->lock);
-		return -EINVAL;
-	}
-	}
-	mutex_unlock(&dev->lock);
-
-	if (IS_OVERLAY_ACTIVE(fh) != 0) {
-		saa7146_stop_preview(fh);
-		saa7146_start_preview(fh);
-	}
-	return 0;
-}
-
 /********************************************************************************/
 /* common pagetable functions */
 
@@ -829,231 +493,451 @@ static int video_end(struct saa7146_fh *fh, struct file *file)
 	return 0;
 }
 
-/*
- * This function is _not_ called directly, but from
- * video_generic_ioctl (and maybe others).  userspace
- * copying is done already, arg is a kernel pointer.
- */
+static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+
+	strcpy((char *)cap->driver, "saa7146 v4l2");
+	strlcpy((char *)cap->card, dev->ext->name, sizeof(cap->card));
+	sprintf((char *)cap->bus_info, "PCI:%s", pci_name(dev->pci));
+	cap->version = SAA7146_VERSION_CODE;
+	cap->capabilities =
+		V4L2_CAP_VIDEO_CAPTURE |
+		V4L2_CAP_VIDEO_OVERLAY |
+		V4L2_CAP_READWRITE |
+		V4L2_CAP_STREAMING;
+	cap->capabilities |= dev->ext_vv_data->capabilities;
+	return 0;
+}
 
-long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg)
+static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb)
 {
-	struct saa7146_fh *fh  = file->private_data;
-	struct saa7146_dev *dev = fh->dev;
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 	struct saa7146_vv *vv = dev->vv_data;
 
-	long err = 0;
-	int result = 0, ee = 0;
+	*fb = vv->ov_fb;
+	fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
+	return 0;
+}
 
-	struct saa7146_use_ops *ops;
-	struct videobuf_queue *q;
+static int vidioc_s_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	struct saa7146_format *fmt;
 
-	/* check if extension handles the command */
-	for(ee = 0; dev->ext_vv_data->ioctls[ee].flags != 0; ee++) {
-		if( cmd == dev->ext_vv_data->ioctls[ee].cmd )
-			break;
-	}
+	DEB_EE(("VIDIOC_S_FBUF\n"));
 
-	if( 0 != (dev->ext_vv_data->ioctls[ee].flags & SAA7146_EXCLUSIVE) ) {
-		DEB_D(("extension handles ioctl exclusive.\n"));
-		result = dev->ext_vv_data->ioctl(fh, cmd, arg);
-		return result;
-	}
-	if( 0 != (dev->ext_vv_data->ioctls[ee].flags & SAA7146_BEFORE) ) {
-		DEB_D(("extension handles ioctl before.\n"));
-		result = dev->ext_vv_data->ioctl(fh, cmd, arg);
-		if( -EAGAIN != result ) {
-			return result;
-		}
-	}
+	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
+		return -EPERM;
 
-	/* fixme: add handle "after" case (is it still needed?) */
+	/* check args */
+	fmt = format_by_fourcc(dev, fb->fmt.pixelformat);
+	if (NULL == fmt)
+		return -EINVAL;
 
-	switch (fh->type) {
-	case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
-		ops = &saa7146_video_uops;
-		q = &fh->video_q;
-		break;
-		}
-	case V4L2_BUF_TYPE_VBI_CAPTURE: {
-		ops = &saa7146_vbi_uops;
-		q = &fh->vbi_q;
-		break;
-		}
-	default:
-		BUG();
-		return 0;
+	/* planar formats are not allowed for overlay video, clipping and video dma would clash */
+	if (fmt->flags & FORMAT_IS_PLANAR)
+		DEB_S(("planar pixelformat '%4.4s' not allowed for overlay\n",
+					(char *)&fmt->pixelformat));
+
+	/* check if overlay is running */
+	if (IS_OVERLAY_ACTIVE(fh) != 0) {
+		if (vv->video_fh != fh) {
+			DEB_D(("refusing to change framebuffer informations while overlay is active in another open.\n"));
+			return -EBUSY;
+		}
 	}
 
-	switch (cmd) {
-	case VIDIOC_QUERYCAP:
-	{
-		struct v4l2_capability *cap = arg;
-		memset(cap,0,sizeof(*cap));
-
-		DEB_EE(("VIDIOC_QUERYCAP\n"));
-
-		strcpy((char *)cap->driver, "saa7146 v4l2");
-		strlcpy((char *)cap->card, dev->ext->name, sizeof(cap->card));
-		sprintf((char *)cap->bus_info,"PCI:%s", pci_name(dev->pci));
-		cap->version = SAA7146_VERSION_CODE;
-		cap->capabilities =
-			V4L2_CAP_VIDEO_CAPTURE |
-			V4L2_CAP_VIDEO_OVERLAY |
-			V4L2_CAP_READWRITE |
-			V4L2_CAP_STREAMING;
-		cap->capabilities |= dev->ext_vv_data->capabilities;
-		return 0;
+	mutex_lock(&dev->lock);
+
+	/* ok, accept it */
+	vv->ov_fb = *fb;
+	vv->ov_fmt = fmt;
+	if (0 == vv->ov_fb.fmt.bytesperline)
+		vv->ov_fb.fmt.bytesperline =
+			vv->ov_fb.fmt.width * fmt->depth / 8;
+
+	mutex_unlock(&dev->lock);
+	return 0;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f)
+{
+	if (f->index >= NUM_FORMATS)
+		return -EINVAL;
+	strlcpy((char *)f->description, formats[f->index].name,
+			sizeof(f->description));
+	f->pixelformat = formats[f->index].pixelformat;
+	return 0;
+}
+
+static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_fmtdesc *f)
+{
+	return vidioc_enum_fmt_vid_cap(file, fh, f);
+}
+
+static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *c)
+{
+	const struct v4l2_queryctrl *ctrl;
+
+	if ((c->id <  V4L2_CID_BASE ||
+	     c->id >= V4L2_CID_LASTP1) &&
+	    (c->id <  V4L2_CID_PRIVATE_BASE ||
+	     c->id >= V4L2_CID_PRIVATE_LASTP1))
+		return -EINVAL;
+
+	ctrl = ctrl_by_id(c->id);
+	if (ctrl == NULL)
+		return -EINVAL;
+
+	DEB_EE(("VIDIOC_QUERYCTRL: id:%d\n", c->id));
+	*c = *ctrl;
+	return 0;
+}
+
+static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *c)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	const struct v4l2_queryctrl *ctrl;
+	u32 value = 0;
+
+	ctrl = ctrl_by_id(c->id);
+	if (NULL == ctrl)
+		return -EINVAL;
+	switch (c->id) {
+	case V4L2_CID_BRIGHTNESS:
+		value = saa7146_read(dev, BCS_CTRL);
+		c->value = 0xff & (value >> 24);
+		DEB_D(("V4L2_CID_BRIGHTNESS: %d\n", c->value));
+		break;
+	case V4L2_CID_CONTRAST:
+		value = saa7146_read(dev, BCS_CTRL);
+		c->value = 0x7f & (value >> 16);
+		DEB_D(("V4L2_CID_CONTRAST: %d\n", c->value));
+		break;
+	case V4L2_CID_SATURATION:
+		value = saa7146_read(dev, BCS_CTRL);
+		c->value = 0x7f & (value >> 0);
+		DEB_D(("V4L2_CID_SATURATION: %d\n", c->value));
+		break;
+	case V4L2_CID_VFLIP:
+		c->value = vv->vflip;
+		DEB_D(("V4L2_CID_VFLIP: %d\n", c->value));
+		break;
+	case V4L2_CID_HFLIP:
+		c->value = vv->hflip;
+		DEB_D(("V4L2_CID_HFLIP: %d\n", c->value));
+		break;
+	default:
+		return -EINVAL;
 	}
-	case VIDIOC_G_FBUF:
-	{
-		struct v4l2_framebuffer *fb = arg;
+	return 0;
+}
 
-		DEB_EE(("VIDIOC_G_FBUF\n"));
+static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	const struct v4l2_queryctrl *ctrl;
 
-		*fb = vv->ov_fb;
-		fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
-		return 0;
+	ctrl = ctrl_by_id(c->id);
+	if (NULL == ctrl) {
+		DEB_D(("unknown control %d\n", c->id));
+		return -EINVAL;
 	}
-	case VIDIOC_S_FBUF:
-	{
-		struct v4l2_framebuffer *fb = arg;
-		struct saa7146_format *fmt;
 
-		DEB_EE(("VIDIOC_S_FBUF\n"));
+	mutex_lock(&dev->lock);
 
-		if(!capable(CAP_SYS_ADMIN) &&
-		   !capable(CAP_SYS_RAWIO))
-			return -EPERM;
+	switch (ctrl->type) {
+	case V4L2_CTRL_TYPE_BOOLEAN:
+	case V4L2_CTRL_TYPE_MENU:
+	case V4L2_CTRL_TYPE_INTEGER:
+		if (c->value < ctrl->minimum)
+			c->value = ctrl->minimum;
+		if (c->value > ctrl->maximum)
+			c->value = ctrl->maximum;
+		break;
+	default:
+		/* nothing */;
+	}
 
-		/* check args */
-		fmt = format_by_fourcc(dev,fb->fmt.pixelformat);
-		if (NULL == fmt) {
+	switch (c->id) {
+	case V4L2_CID_BRIGHTNESS: {
+		u32 value = saa7146_read(dev, BCS_CTRL);
+		value &= 0x00ffffff;
+		value |= (c->value << 24);
+		saa7146_write(dev, BCS_CTRL, value);
+		saa7146_write(dev, MC2, MASK_22 | MASK_06);
+		break;
+	}
+	case V4L2_CID_CONTRAST: {
+		u32 value = saa7146_read(dev, BCS_CTRL);
+		value &= 0xff00ffff;
+		value |= (c->value << 16);
+		saa7146_write(dev, BCS_CTRL, value);
+		saa7146_write(dev, MC2, MASK_22 | MASK_06);
+		break;
+	}
+	case V4L2_CID_SATURATION: {
+		u32 value = saa7146_read(dev, BCS_CTRL);
+		value &= 0xffffff00;
+		value |= (c->value << 0);
+		saa7146_write(dev, BCS_CTRL, value);
+		saa7146_write(dev, MC2, MASK_22 | MASK_06);
+		break;
+	}
+	case V4L2_CID_HFLIP:
+		/* fixme: we can support changing VFLIP and HFLIP here... */
+		if (IS_CAPTURE_ACTIVE(fh) != 0) {
+			DEB_D(("V4L2_CID_HFLIP while active capture.\n"));
+			mutex_unlock(&dev->lock);
 			return -EINVAL;
 		}
-
-		/* planar formats are not allowed for overlay video, clipping and video dma would clash */
-		if (0 != (fmt->flags & FORMAT_IS_PLANAR)) {
-			DEB_S(("planar pixelformat '%4.4s' not allowed for overlay\n",(char *)&fmt->pixelformat));
+		vv->hflip = c->value;
+		break;
+	case V4L2_CID_VFLIP:
+		if (IS_CAPTURE_ACTIVE(fh) != 0) {
+			DEB_D(("V4L2_CID_VFLIP while active capture.\n"));
+			mutex_unlock(&dev->lock);
+			return -EINVAL;
 		}
+		vv->vflip = c->value;
+		break;
+	default:
+		mutex_unlock(&dev->lock);
+		return -EINVAL;
+	}
+	mutex_unlock(&dev->lock);
 
-		/* check if overlay is running */
-		if (IS_OVERLAY_ACTIVE(fh) != 0) {
-			if (vv->video_fh != fh) {
-				DEB_D(("refusing to change framebuffer informations while overlay is active in another open.\n"));
-				return -EBUSY;
-			}
-		}
+	if (IS_OVERLAY_ACTIVE(fh) != 0) {
+		saa7146_stop_preview(fh);
+		saa7146_start_preview(fh);
+	}
+	return 0;
+}
 
-		mutex_lock(&dev->lock);
+static int vidioc_g_parm(struct file *file, void *fh,
+		struct v4l2_streamparm *parm)
+{
+	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	parm->parm.capture.readbuffers = 1;
+	/* fixme: only for PAL! */
+	parm->parm.capture.timeperframe.numerator = 1;
+	parm->parm.capture.timeperframe.denominator = 25;
+	return 0;
+}
 
-		/* ok, accept it */
-		vv->ov_fb = *fb;
-		vv->ov_fmt = fmt;
-		if (0 == vv->ov_fb.fmt.bytesperline)
-			vv->ov_fb.fmt.bytesperline =
-				vv->ov_fb.fmt.width*fmt->depth/8;
+static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	f->fmt.pix = ((struct saa7146_fh *)fh)->video_fmt;
+	return 0;
+}
 
-		mutex_unlock(&dev->lock);
+static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f)
+{
+	f->fmt.win = ((struct saa7146_fh *)fh)->ov.win;
+	return 0;
+}
 
-		return 0;
-	}
-	case VIDIOC_ENUM_FMT:
-	{
-		struct v4l2_fmtdesc *f = arg;
-
-		switch (f->type) {
-		case V4L2_BUF_TYPE_VIDEO_CAPTURE:
-		case V4L2_BUF_TYPE_VIDEO_OVERLAY:
-			if (f->index >= NUM_FORMATS)
-				return -EINVAL;
-			strlcpy((char *)f->description, formats[f->index].name,
-					sizeof(f->description));
-			f->pixelformat = formats[f->index].pixelformat;
-			f->flags = 0;
-			memset(f->reserved, 0, sizeof(f->reserved));
-			break;
-		default:
-			return -EINVAL;
-		}
+static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	f->fmt.vbi = ((struct saa7146_fh *)fh)->vbi_fmt;
+	return 0;
+}
 
-		DEB_EE(("VIDIOC_ENUM_FMT: type:%d, index:%d\n",f->type,f->index));
-		return 0;
+static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	struct saa7146_format *fmt;
+	enum v4l2_field field;
+	int maxw, maxh;
+	int calc_bpl;
+
+	DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh));
+
+	fmt = format_by_fourcc(dev, f->fmt.pix.pixelformat);
+	if (NULL == fmt)
+		return -EINVAL;
+
+	field = f->fmt.pix.field;
+	maxw  = vv->standard->h_max_out;
+	maxh  = vv->standard->v_max_out;
+
+	if (V4L2_FIELD_ANY == field) {
+		field = (f->fmt.pix.height > maxh / 2)
+			? V4L2_FIELD_INTERLACED
+			: V4L2_FIELD_BOTTOM;
+	}
+	switch (field) {
+	case V4L2_FIELD_ALTERNATE:
+		vv->last_field = V4L2_FIELD_TOP;
+		maxh = maxh / 2;
+		break;
+	case V4L2_FIELD_TOP:
+	case V4L2_FIELD_BOTTOM:
+		vv->last_field = V4L2_FIELD_INTERLACED;
+		maxh = maxh / 2;
+		break;
+	case V4L2_FIELD_INTERLACED:
+		vv->last_field = V4L2_FIELD_INTERLACED;
+		break;
+	default:
+		DEB_D(("no known field mode '%d'.\n", field));
+		return -EINVAL;
 	}
-	case VIDIOC_QUERYCTRL:
-	{
-		const struct v4l2_queryctrl *ctrl;
-		struct v4l2_queryctrl *c = arg;
 
-		if ((c->id <  V4L2_CID_BASE ||
-		     c->id >= V4L2_CID_LASTP1) &&
-		    (c->id <  V4L2_CID_PRIVATE_BASE ||
-		     c->id >= V4L2_CID_PRIVATE_LASTP1))
-			return -EINVAL;
+	f->fmt.pix.field = field;
+	if (f->fmt.pix.width > maxw)
+		f->fmt.pix.width = maxw;
+	if (f->fmt.pix.height > maxh)
+		f->fmt.pix.height = maxh;
 
-		ctrl = ctrl_by_id(c->id);
-		if( NULL == ctrl ) {
-			return -EINVAL;
-/*
-			c->flags = V4L2_CTRL_FLAG_DISABLED;
-			return 0;
-*/
-		}
+	calc_bpl = (f->fmt.pix.width * fmt->depth) / 8;
 
-		DEB_EE(("VIDIOC_QUERYCTRL: id:%d\n",c->id));
-		*c = *ctrl;
-		return 0;
+	if (f->fmt.pix.bytesperline < calc_bpl)
+		f->fmt.pix.bytesperline = calc_bpl;
+
+	if (f->fmt.pix.bytesperline > (2 * PAGE_SIZE * fmt->depth) / 8) /* arbitrary constraint */
+		f->fmt.pix.bytesperline = calc_bpl;
+
+	f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
+	DEB_D(("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n", f->fmt.pix.width,
+			f->fmt.pix.height, f->fmt.pix.bytesperline, f->fmt.pix.sizeimage));
+
+	return 0;
+}
+
+
+static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	struct v4l2_window *win = &f->fmt.win;
+	enum v4l2_field field;
+	int maxw, maxh;
+
+	DEB_EE(("dev:%p\n", dev));
+
+	if (NULL == vv->ov_fb.base) {
+		DEB_D(("no fb base set.\n"));
+		return -EINVAL;
 	}
-	case VIDIOC_G_CTRL: {
-		DEB_EE(("VIDIOC_G_CTRL\n"));
-		return get_control(fh,arg);
+	if (NULL == vv->ov_fmt) {
+		DEB_D(("no fb fmt set.\n"));
+		return -EINVAL;
 	}
-	case VIDIOC_S_CTRL:
-	{
-		DEB_EE(("VIDIOC_S_CTRL\n"));
-		err = set_control(fh,arg);
-		return err;
+	if (win->w.width < 48 || win->w.height < 32) {
+		DEB_D(("min width/height. (%d,%d)\n", win->w.width, win->w.height));
+		return -EINVAL;
 	}
-	case VIDIOC_G_PARM:
-	{
-		struct v4l2_streamparm *parm = arg;
-		if( parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ) {
-			return -EINVAL;
-		}
-		memset(&parm->parm.capture,0,sizeof(struct v4l2_captureparm));
-		parm->parm.capture.readbuffers = 1;
-		// fixme: only for PAL!
-		parm->parm.capture.timeperframe.numerator = 1;
-		parm->parm.capture.timeperframe.denominator = 25;
-		return 0;
+	if (win->clipcount > 16) {
+		DEB_D(("clipcount too big.\n"));
+		return -EINVAL;
 	}
-	case VIDIOC_G_FMT:
-	{
-		struct v4l2_format *f = arg;
-		DEB_EE(("VIDIOC_G_FMT\n"));
-		return g_fmt(fh,f);
+
+	field = win->field;
+	maxw  = vv->standard->h_max_out;
+	maxh  = vv->standard->v_max_out;
+
+	if (V4L2_FIELD_ANY == field) {
+		field = (win->w.height > maxh / 2)
+			? V4L2_FIELD_INTERLACED
+			: V4L2_FIELD_TOP;
+		}
+	switch (field) {
+	case V4L2_FIELD_TOP:
+	case V4L2_FIELD_BOTTOM:
+	case V4L2_FIELD_ALTERNATE:
+		maxh = maxh / 2;
+		break;
+	case V4L2_FIELD_INTERLACED:
+		break;
+	default:
+		DEB_D(("no known field mode '%d'.\n", field));
+		return -EINVAL;
 	}
-	case VIDIOC_S_FMT:
-	{
-		struct v4l2_format *f = arg;
-		DEB_EE(("VIDIOC_S_FMT\n"));
-		return s_fmt(fh,f);
+
+	win->field = field;
+	if (win->w.width > maxw)
+		win->w.width = maxw;
+	if (win->w.height > maxh)
+		win->w.height = maxh;
+
+	return 0;
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f)
+{
+	struct saa7146_fh *fh = __fh;
+	struct saa7146_dev *dev = fh->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	int err;
+
+	DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh));
+	if (IS_CAPTURE_ACTIVE(fh) != 0) {
+		DEB_EE(("streaming capture is active\n"));
+		return -EBUSY;
 	}
-	case VIDIOC_TRY_FMT:
-	{
-		struct v4l2_format *f = arg;
-		DEB_EE(("VIDIOC_TRY_FMT\n"));
-		return try_fmt(fh,f);
+	err = vidioc_try_fmt_vid_cap(file, fh, f);
+	if (0 != err)
+		return err;
+	fh->video_fmt = f->fmt.pix;
+	DEB_EE(("set to pixelformat '%4.4s'\n", (char *)&fh->video_fmt.pixelformat));
+	return 0;
+}
+
+static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f)
+{
+	struct saa7146_fh *fh = __fh;
+	struct saa7146_dev *dev = fh->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	int err;
+
+	DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh));
+	err = vidioc_try_fmt_vid_overlay(file, fh, f);
+	if (0 != err)
+		return err;
+	mutex_lock(&dev->lock);
+	fh->ov.win    = f->fmt.win;
+	fh->ov.nclips = f->fmt.win.clipcount;
+	if (fh->ov.nclips > 16)
+		fh->ov.nclips = 16;
+	if (copy_from_user(fh->ov.clips, f->fmt.win.clips,
+				sizeof(struct v4l2_clip) * fh->ov.nclips)) {
+		mutex_unlock(&dev->lock);
+		return -EFAULT;
 	}
-	case VIDIOC_G_STD:
-	{
-		v4l2_std_id *id = arg;
-		DEB_EE(("VIDIOC_G_STD\n"));
-		*id = vv->standard->id;
-		return 0;
+
+	/* fh->ov.fh is used to indicate that we have valid overlay informations, too */
+	fh->ov.fh = fh;
+
+	mutex_unlock(&dev->lock);
+
+	/* check if our current overlay is active */
+	if (IS_OVERLAY_ACTIVE(fh) != 0) {
+		saa7146_stop_preview(fh);
+		saa7146_start_preview(fh);
 	}
+	return 0;
+}
+
+static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+
+	*norm = vv->standard->id;
+	return 0;
+}
+
 	/* the saa7146 supfhrts (used in conjunction with the saa7111a for example)
 	   PAL / NTSC / SECAM. if your hardware does not (or does more)
 	   -- override this function in your extension */
+/*
 	case VIDIOC_ENUMSTD:
 	{
 		struct v4l2_standard *e = arg;
@@ -1066,162 +950,228 @@ long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 		}
 		return -EINVAL;
 	}
-	case VIDIOC_S_STD:
-	{
-		v4l2_std_id *id = arg;
-		int found = 0;
-		int i;
+	*/
 
-		DEB_EE(("VIDIOC_S_STD\n"));
+static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *id)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	int found = 0;
+	int err, i;
 
-		if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) {
-			DEB_D(("cannot change video standard while streaming capture is active\n"));
-			return -EBUSY;
-		}
+	DEB_EE(("VIDIOC_S_STD\n"));
 
-		if ((vv->video_status & STATUS_OVERLAY) != 0) {
-			vv->ov_suspend = vv->video_fh;
-			err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
-			if (0 != err) {
-				DEB_D(("suspending video failed. aborting\n"));
-				return err;
-			}
-		}
-
-		mutex_lock(&dev->lock);
+	if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) {
+		DEB_D(("cannot change video standard while streaming capture is active\n"));
+		return -EBUSY;
+	}
 
-		for(i = 0; i < dev->ext_vv_data->num_stds; i++)
-			if (*id & dev->ext_vv_data->stds[i].id)
-				break;
-		if (i != dev->ext_vv_data->num_stds) {
-			vv->standard = &dev->ext_vv_data->stds[i];
-			if( NULL != dev->ext_vv_data->std_callback )
-				dev->ext_vv_data->std_callback(dev, vv->standard);
-			found = 1;
+	if ((vv->video_status & STATUS_OVERLAY) != 0) {
+		vv->ov_suspend = vv->video_fh;
+		err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
+		if (0 != err) {
+			DEB_D(("suspending video failed. aborting\n"));
+			return err;
 		}
+	}
 
-		mutex_unlock(&dev->lock);
+	mutex_lock(&dev->lock);
 
-		if (vv->ov_suspend != NULL) {
-			saa7146_start_preview(vv->ov_suspend);
-			vv->ov_suspend = NULL;
-		}
+	for (i = 0; i < dev->ext_vv_data->num_stds; i++)
+		if (*id & dev->ext_vv_data->stds[i].id)
+			break;
+	if (i != dev->ext_vv_data->num_stds) {
+		vv->standard = &dev->ext_vv_data->stds[i];
+		if (NULL != dev->ext_vv_data->std_callback)
+			dev->ext_vv_data->std_callback(dev, vv->standard);
+		found = 1;
+	}
 
-		if( 0 == found ) {
-			DEB_EE(("VIDIOC_S_STD: standard not found.\n"));
-			return -EINVAL;
-		}
+	mutex_unlock(&dev->lock);
 
-		DEB_EE(("VIDIOC_S_STD: set to standard to '%s'\n",vv->standard->name));
-		return 0;
+	if (vv->ov_suspend != NULL) {
+		saa7146_start_preview(vv->ov_suspend);
+		vv->ov_suspend = NULL;
 	}
-	case VIDIOC_OVERLAY:
-	{
-		int on = *(int *)arg;
 
-		DEB_D(("VIDIOC_OVERLAY on:%d\n",on));
-		if (on != 0) {
-			err = saa7146_start_preview(fh);
-		} else {
-			err = saa7146_stop_preview(fh);
-		}
-		return err;
-	}
-	case VIDIOC_REQBUFS: {
-		struct v4l2_requestbuffers *req = arg;
-		DEB_D(("VIDIOC_REQBUFS, type:%d\n",req->type));
-		return videobuf_reqbufs(q,req);
-	}
-	case VIDIOC_QUERYBUF: {
-		struct v4l2_buffer *buf = arg;
-		DEB_D(("VIDIOC_QUERYBUF, type:%d, offset:%d\n",buf->type,buf->m.offset));
-		return videobuf_querybuf(q,buf);
-	}
-	case VIDIOC_QBUF: {
-		struct v4l2_buffer *buf = arg;
-		int ret = 0;
-		ret = videobuf_qbuf(q,buf);
-		DEB_D(("VIDIOC_QBUF: ret:%d, index:%d\n",ret,buf->index));
-		return ret;
-	}
-	case VIDIOC_DQBUF: {
-		struct v4l2_buffer *buf = arg;
-		int ret = 0;
-		ret = videobuf_dqbuf(q,buf,file->f_flags & O_NONBLOCK);
-		DEB_D(("VIDIOC_DQBUF: ret:%d, index:%d\n",ret,buf->index));
-		return ret;
+	if (!found) {
+		DEB_EE(("VIDIOC_S_STD: standard not found.\n"));
+		return -EINVAL;
 	}
-	case VIDIOC_STREAMON: {
-		int *type = arg;
-		DEB_D(("VIDIOC_STREAMON, type:%d\n",*type));
 
-		err = video_begin(fh);
-		if( 0 != err) {
-			return err;
-		}
-		err = videobuf_streamon(q);
-		return err;
-	}
-	case VIDIOC_STREAMOFF: {
-		int *type = arg;
+	DEB_EE(("VIDIOC_S_STD: set to standard to '%s'\n", vv->standard->name));
+	return 0;
+}
 
-		DEB_D(("VIDIOC_STREAMOFF, type:%d\n",*type));
+static int vidioc_overlay(struct file *file, void *fh, unsigned int on)
+{
+	int err;
 
-		/* ugly: we need to copy some checks from video_end(),
-		   because videobuf_streamoff() relies on the capture running.
-		   check and fix this */
-		if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
-			DEB_S(("not capturing.\n"));
-			return 0;
-		}
+	DEB_D(("VIDIOC_OVERLAY on:%d\n", on));
+	if (on)
+		err = saa7146_start_preview(fh);
+	else
+		err = saa7146_stop_preview(fh);
+	return err;
+}
 
-		if (vv->video_fh != fh) {
-			DEB_S(("capturing, but in another open.\n"));
-			return -EBUSY;
-		}
+static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b)
+{
+	struct saa7146_fh *fh = __fh;
 
-		err = videobuf_streamoff(q);
-		if (0 != err) {
-			DEB_D(("warning: videobuf_streamoff() failed.\n"));
-			video_end(fh, file);
-		} else {
-			err = video_end(fh, file);
-		}
-		return err;
-	}
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
-	case VIDIOCGMBUF:
-	{
-		struct video_mbuf *mbuf = arg;
-		int i;
+	if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return videobuf_reqbufs(&fh->video_q, b);
+	if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE)
+		return videobuf_reqbufs(&fh->vbi_q, b);
+	return -EINVAL;
+}
 
-		/* fixme: number of capture buffers and sizes for v4l apps */
-		int gbuffers = 2;
-		int gbufsize = 768*576*4;
+static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
+{
+	struct saa7146_fh *fh = __fh;
 
-		DEB_D(("VIDIOCGMBUF \n"));
+	if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return videobuf_querybuf(&fh->video_q, buf);
+	if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
+		return videobuf_querybuf(&fh->vbi_q, buf);
+	return -EINVAL;
+}
 
-		q = &fh->video_q;
-		err = videobuf_mmap_setup(q,gbuffers,gbufsize,
-					  V4L2_MEMORY_MMAP);
-		if (err < 0)
-			return err;
+static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
+{
+	struct saa7146_fh *fh = __fh;
+
+	if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return videobuf_qbuf(&fh->video_q, buf);
+	if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
+		return videobuf_qbuf(&fh->vbi_q, buf);
+	return -EINVAL;
+}
+
+static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
+{
+	struct saa7146_fh *fh = __fh;
+
+	if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK);
+	if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
+		return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK);
+	return -EINVAL;
+}
+
+static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
+{
+	struct saa7146_fh *fh = __fh;
+	int err;
+
+	DEB_D(("VIDIOC_STREAMON, type:%d\n", type));
+
+	err = video_begin(fh);
+	if (err)
+		return err;
+	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return videobuf_streamon(&fh->video_q);
+	if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
+		return videobuf_streamon(&fh->vbi_q);
+	return -EINVAL;
+}
+
+static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
+{
+	struct saa7146_fh *fh = __fh;
+	struct saa7146_dev *dev = fh->dev;
+	struct saa7146_vv *vv = dev->vv_data;
+	int err;
 
-		gbuffers = err;
-		memset(mbuf,0,sizeof(*mbuf));
-		mbuf->frames = gbuffers;
-		mbuf->size   = gbuffers * gbufsize;
-		for (i = 0; i < gbuffers; i++)
-			mbuf->offsets[i] = i * gbufsize;
+	DEB_D(("VIDIOC_STREAMOFF, type:%d\n", type));
+
+	/* ugly: we need to copy some checks from video_end(),
+	   because videobuf_streamoff() relies on the capture running.
+	   check and fix this */
+	if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
+		DEB_S(("not capturing.\n"));
 		return 0;
 	}
-#endif
-	default:
-		return v4l_compat_translate_ioctl(file, cmd, arg,
-						  saa7146_video_do_ioctl);
+
+	if (vv->video_fh != fh) {
+		DEB_S(("capturing, but in another open.\n"));
+		return -EBUSY;
 	}
+
+	err = -EINVAL;
+	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		err = videobuf_streamoff(&fh->video_q);
+	else if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
+		err = videobuf_streamoff(&fh->vbi_q);
+	if (0 != err) {
+		DEB_D(("warning: videobuf_streamoff() failed.\n"));
+		video_end(fh, file);
+	} else {
+		err = video_end(fh, file);
+	}
+	return err;
+}
+
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+static int vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *mbuf)
+{
+	struct saa7146_fh *fh = __fh;
+	struct videobuf_queue *q = &fh->video_q;
+	int err, i;
+
+	/* fixme: number of capture buffers and sizes for v4l apps */
+	int gbuffers = 2;
+	int gbufsize = 768 * 576 * 4;
+
+	DEB_D(("VIDIOCGMBUF \n"));
+
+	q = &fh->video_q;
+	err = videobuf_mmap_setup(q, gbuffers, gbufsize,
+			V4L2_MEMORY_MMAP);
+	if (err < 0)
+		return err;
+
+	gbuffers = err;
+	memset(mbuf, 0, sizeof(*mbuf));
+	mbuf->frames = gbuffers;
+	mbuf->size   = gbuffers * gbufsize;
+	for (i = 0; i < gbuffers; i++)
+		mbuf->offsets[i] = i * gbufsize;
 	return 0;
 }
+#endif
+
+const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = {
+	.vidioc_querycap             = vidioc_querycap,
+	.vidioc_enum_fmt_vid_cap     = vidioc_enum_fmt_vid_cap,
+	.vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay,
+	.vidioc_g_fmt_vid_cap        = vidioc_g_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap      = vidioc_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap        = vidioc_s_fmt_vid_cap,
+	.vidioc_g_fmt_vid_overlay    = vidioc_g_fmt_vid_overlay,
+	.vidioc_try_fmt_vid_overlay  = vidioc_try_fmt_vid_overlay,
+	.vidioc_s_fmt_vid_overlay    = vidioc_s_fmt_vid_overlay,
+	.vidioc_g_fmt_vbi_cap        = vidioc_g_fmt_vbi_cap,
+
+	.vidioc_overlay 	     = vidioc_overlay,
+	.vidioc_g_fbuf  	     = vidioc_g_fbuf,
+	.vidioc_s_fbuf  	     = vidioc_s_fbuf,
+	.vidioc_reqbufs              = vidioc_reqbufs,
+	.vidioc_querybuf             = vidioc_querybuf,
+	.vidioc_qbuf                 = vidioc_qbuf,
+	.vidioc_dqbuf                = vidioc_dqbuf,
+	.vidioc_g_std                = vidioc_g_std,
+	.vidioc_s_std                = vidioc_s_std,
+	.vidioc_queryctrl            = vidioc_queryctrl,
+	.vidioc_g_ctrl               = vidioc_g_ctrl,
+	.vidioc_s_ctrl               = vidioc_s_ctrl,
+	.vidioc_streamon             = vidioc_streamon,
+	.vidioc_streamoff            = vidioc_streamoff,
+	.vidioc_g_parm 		     = vidioc_g_parm,
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+	.vidiocgmbuf                 = vidiocgmbuf,
+#endif
+};
 
 /*********************************************************************************/
 /* buffer handling functions                                                  */
diff --git a/drivers/media/dvb/ttpci/av7110_v4l.c b/drivers/media/dvb/ttpci/av7110_v4l.c
index c5b9c70563dc..04334058f8f8 100644
--- a/drivers/media/dvb/ttpci/av7110_v4l.c
+++ b/drivers/media/dvb/ttpci/av7110_v4l.c
@@ -316,253 +316,260 @@ static int av7110_dvb_c_switch(struct saa7146_fh *fh)
 	return 0;
 }
 
-static long av7110_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
+static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
 {
-	struct saa7146_dev *dev = fh->dev;
-	struct av7110 *av7110 = (struct av7110*) dev->ext_priv;
-	dprintk(4, "saa7146_dev: %p\n", dev);
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
+	u16 stereo_det;
+	s8 stereo;
 
-	switch (cmd) {
-	case VIDIOC_G_TUNER:
-	{
-		struct v4l2_tuner *t = arg;
-		u16 stereo_det;
-		s8 stereo;
+	dprintk(2, "VIDIOC_G_TUNER: %d\n", t->index);
 
-		dprintk(2, "VIDIOC_G_TUNER: %d\n", t->index);
+	if (!av7110->analog_tuner_flags || t->index != 0)
+		return -EINVAL;
 
-		if (!av7110->analog_tuner_flags || t->index != 0)
-			return -EINVAL;
+	memset(t, 0, sizeof(*t));
+	strcpy((char *)t->name, "Television");
+
+	t->type = V4L2_TUNER_ANALOG_TV;
+	t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
+		V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
+	t->rangelow = 772;	/* 48.25 MHZ / 62.5 kHz = 772, see fi1216mk2-specs, page 2 */
+	t->rangehigh = 13684;	/* 855.25 MHz / 62.5 kHz = 13684 */
+	/* FIXME: add the real signal strength here */
+	t->signal = 0xffff;
+	t->afc = 0;
+
+	/* FIXME: standard / stereo detection is still broken */
+	msp_readreg(av7110, MSP_RD_DEM, 0x007e, &stereo_det);
+	dprintk(1, "VIDIOC_G_TUNER: msp3400 TV standard detection: 0x%04x\n", stereo_det);
+	msp_readreg(av7110, MSP_RD_DSP, 0x0018, &stereo_det);
+	dprintk(1, "VIDIOC_G_TUNER: msp3400 stereo detection: 0x%04x\n", stereo_det);
+	stereo = (s8)(stereo_det >> 8);
+	if (stereo > 0x10) {
+		/* stereo */
+		t->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
+		t->audmode = V4L2_TUNER_MODE_STEREO;
+	} else if (stereo < -0x10) {
+		/* bilingual */
+		t->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
+		t->audmode = V4L2_TUNER_MODE_LANG1;
+	} else /* mono */
+		t->rxsubchans = V4L2_TUNER_SUB_MONO;
 
-		memset(t, 0, sizeof(*t));
-		strcpy((char *)t->name, "Television");
-
-		t->type = V4L2_TUNER_ANALOG_TV;
-		t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
-			V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
-		t->rangelow = 772;	/* 48.25 MHZ / 62.5 kHz = 772, see fi1216mk2-specs, page 2 */
-		t->rangehigh = 13684;	/* 855.25 MHz / 62.5 kHz = 13684 */
-		/* FIXME: add the real signal strength here */
-		t->signal = 0xffff;
-		t->afc = 0;
-
-		// FIXME: standard / stereo detection is still broken
-		msp_readreg(av7110, MSP_RD_DEM, 0x007e, &stereo_det);
-		dprintk(1, "VIDIOC_G_TUNER: msp3400 TV standard detection: 0x%04x\n", stereo_det);
-		msp_readreg(av7110, MSP_RD_DSP, 0x0018, &stereo_det);
-		dprintk(1, "VIDIOC_G_TUNER: msp3400 stereo detection: 0x%04x\n", stereo_det);
-		stereo = (s8)(stereo_det >> 8);
-		if (stereo > 0x10) {
-			/* stereo */
-			t->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
-			t->audmode = V4L2_TUNER_MODE_STEREO;
-		}
-		else if (stereo < -0x10) {
-			/* bilingual */
-			t->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
-			t->audmode = V4L2_TUNER_MODE_LANG1;
-		}
-		else /* mono */
-			t->rxsubchans = V4L2_TUNER_SUB_MONO;
+	return 0;
+}
 
-		return 0;
-	}
-	case VIDIOC_S_TUNER:
-	{
-		struct v4l2_tuner *t = arg;
-		u16 fm_matrix, src;
-		dprintk(2, "VIDIOC_S_TUNER: %d\n", t->index);
+static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
+	u16 fm_matrix, src;
+	dprintk(2, "VIDIOC_S_TUNER: %d\n", t->index);
 
-		if (!av7110->analog_tuner_flags || av7110->current_input != 1)
-			return -EINVAL;
+	if (!av7110->analog_tuner_flags || av7110->current_input != 1)
+		return -EINVAL;
 
-		switch (t->audmode) {
-		case V4L2_TUNER_MODE_STEREO:
-			dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_STEREO\n");
-			fm_matrix = 0x3001; // stereo
-			src = 0x0020;
-			break;
-		case V4L2_TUNER_MODE_LANG1_LANG2:
-			dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG1_LANG2\n");
-			fm_matrix = 0x3000; // bilingual
-			src = 0x0020;
-			break;
-		case V4L2_TUNER_MODE_LANG1:
-			dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG1\n");
-			fm_matrix = 0x3000; // mono
-			src = 0x0000;
-			break;
-		case V4L2_TUNER_MODE_LANG2:
-			dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG2\n");
-			fm_matrix = 0x3000; // mono
-			src = 0x0010;
-			break;
-		default: /* case V4L2_TUNER_MODE_MONO: */
-			dprintk(2, "VIDIOC_S_TUNER: TDA9840_SET_MONO\n");
-			fm_matrix = 0x3000; // mono
-			src = 0x0030;
-			break;
-		}
-		msp_writereg(av7110, MSP_WR_DSP, 0x000e, fm_matrix);
-		msp_writereg(av7110, MSP_WR_DSP, 0x0008, src);
-		msp_writereg(av7110, MSP_WR_DSP, 0x0009, src);
-		msp_writereg(av7110, MSP_WR_DSP, 0x000a, src);
-		return 0;
+	switch (t->audmode) {
+	case V4L2_TUNER_MODE_STEREO:
+		dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_STEREO\n");
+		fm_matrix = 0x3001; /* stereo */
+		src = 0x0020;
+		break;
+	case V4L2_TUNER_MODE_LANG1_LANG2:
+		dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG1_LANG2\n");
+		fm_matrix = 0x3000; /* bilingual */
+		src = 0x0020;
+		break;
+	case V4L2_TUNER_MODE_LANG1:
+		dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG1\n");
+		fm_matrix = 0x3000; /* mono */
+		src = 0x0000;
+		break;
+	case V4L2_TUNER_MODE_LANG2:
+		dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG2\n");
+		fm_matrix = 0x3000; /* mono */
+		src = 0x0010;
+		break;
+	default: /* case V4L2_TUNER_MODE_MONO: */
+		dprintk(2, "VIDIOC_S_TUNER: TDA9840_SET_MONO\n");
+		fm_matrix = 0x3000; /* mono */
+		src = 0x0030;
+		break;
 	}
-	case VIDIOC_G_FREQUENCY:
-	{
-		struct v4l2_frequency *f = arg;
+	msp_writereg(av7110, MSP_WR_DSP, 0x000e, fm_matrix);
+	msp_writereg(av7110, MSP_WR_DSP, 0x0008, src);
+	msp_writereg(av7110, MSP_WR_DSP, 0x0009, src);
+	msp_writereg(av7110, MSP_WR_DSP, 0x000a, src);
+	return 0;
+}
+
+static int vidioc_g_frequency(struct file *file, void *fh, struct v4l2_frequency *f)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
 
-		dprintk(2, "VIDIOC_G_FREQ: freq:0x%08x.\n", f->frequency);
+	dprintk(2, "VIDIOC_G_FREQ: freq:0x%08x.\n", f->frequency);
 
-		if (!av7110->analog_tuner_flags || av7110->current_input != 1)
-			return -EINVAL;
+	if (!av7110->analog_tuner_flags || av7110->current_input != 1)
+		return -EINVAL;
 
-		memset(f, 0, sizeof(*f));
-		f->type = V4L2_TUNER_ANALOG_TV;
-		f->frequency =	av7110->current_freq;
-		return 0;
-	}
-	case VIDIOC_S_FREQUENCY:
-	{
-		struct v4l2_frequency *f = arg;
+	memset(f, 0, sizeof(*f));
+	f->type = V4L2_TUNER_ANALOG_TV;
+	f->frequency =	av7110->current_freq;
+	return 0;
+}
 
-		dprintk(2, "VIDIOC_S_FREQUENCY: freq:0x%08x.\n", f->frequency);
+static int vidioc_s_frequency(struct file *file, void *fh, struct v4l2_frequency *f)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
 
-		if (!av7110->analog_tuner_flags || av7110->current_input != 1)
-			return -EINVAL;
+	dprintk(2, "VIDIOC_S_FREQUENCY: freq:0x%08x.\n", f->frequency);
 
-		if (V4L2_TUNER_ANALOG_TV != f->type)
-			return -EINVAL;
+	if (!av7110->analog_tuner_flags || av7110->current_input != 1)
+		return -EINVAL;
 
-		msp_writereg(av7110, MSP_WR_DSP, 0x0000, 0xffe0); // fast mute
-		msp_writereg(av7110, MSP_WR_DSP, 0x0007, 0xffe0);
+	if (V4L2_TUNER_ANALOG_TV != f->type)
+		return -EINVAL;
 
-		/* tune in desired frequency */
-		if (av7110->analog_tuner_flags & ANALOG_TUNER_VES1820) {
-			ves1820_set_tv_freq(dev, f->frequency);
-		} else if (av7110->analog_tuner_flags & ANALOG_TUNER_STV0297) {
-			stv0297_set_tv_freq(dev, f->frequency);
-		}
-		av7110->current_freq = f->frequency;
+	msp_writereg(av7110, MSP_WR_DSP, 0x0000, 0xffe0); /* fast mute */
+	msp_writereg(av7110, MSP_WR_DSP, 0x0007, 0xffe0);
 
-		msp_writereg(av7110, MSP_WR_DSP, 0x0015, 0x003f); // start stereo detection
-		msp_writereg(av7110, MSP_WR_DSP, 0x0015, 0x0000);
-		msp_writereg(av7110, MSP_WR_DSP, 0x0000, 0x4f00); // loudspeaker + headphone
-		msp_writereg(av7110, MSP_WR_DSP, 0x0007, 0x4f00); // SCART 1 volume
-		return 0;
-	}
-	case VIDIOC_ENUMINPUT:
-	{
-		struct v4l2_input *i = arg;
+	/* tune in desired frequency */
+	if (av7110->analog_tuner_flags & ANALOG_TUNER_VES1820)
+		ves1820_set_tv_freq(dev, f->frequency);
+	else if (av7110->analog_tuner_flags & ANALOG_TUNER_STV0297)
+		stv0297_set_tv_freq(dev, f->frequency);
+	av7110->current_freq = f->frequency;
 
-		dprintk(2, "VIDIOC_ENUMINPUT: %d\n", i->index);
+	msp_writereg(av7110, MSP_WR_DSP, 0x0015, 0x003f); /* start stereo detection */
+	msp_writereg(av7110, MSP_WR_DSP, 0x0015, 0x0000);
+	msp_writereg(av7110, MSP_WR_DSP, 0x0000, 0x4f00); /* loudspeaker + headphone */
+	msp_writereg(av7110, MSP_WR_DSP, 0x0007, 0x4f00); /* SCART 1 volume */
+	return 0;
+}
 
-		if (av7110->analog_tuner_flags) {
-			if (i->index < 0 || i->index >= 4)
-				return -EINVAL;
-		} else {
-			if (i->index != 0)
-				return -EINVAL;
-		}
+static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
 
-		memcpy(i, &inputs[i->index], sizeof(struct v4l2_input));
+	dprintk(2, "VIDIOC_ENUMINPUT: %d\n", i->index);
 
-		return 0;
+	if (av7110->analog_tuner_flags) {
+		if (i->index < 0 || i->index >= 4)
+			return -EINVAL;
+	} else {
+		if (i->index != 0)
+			return -EINVAL;
 	}
-	case VIDIOC_G_INPUT:
-	{
-		int *input = (int *)arg;
-		*input = av7110->current_input;
-		dprintk(2, "VIDIOC_G_INPUT: %d\n", *input);
+
+	memcpy(i, &inputs[i->index], sizeof(struct v4l2_input));
+
+	return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *fh, unsigned int *input)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
+
+	*input = av7110->current_input;
+	dprintk(2, "VIDIOC_G_INPUT: %d\n", *input);
+	return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
+
+	dprintk(2, "VIDIOC_S_INPUT: %d\n", input);
+
+	if (!av7110->analog_tuner_flags)
 		return 0;
-	}
-	case VIDIOC_S_INPUT:
-	{
-		int input = *(int *)arg;
 
-		dprintk(2, "VIDIOC_S_INPUT: %d\n", input);
+	if (input < 0 || input >= 4)
+		return -EINVAL;
 
-		if (!av7110->analog_tuner_flags)
-			return 0;
+	av7110->current_input = input;
+	return av7110_dvb_c_switch(fh);
+}
 
-		if (input < 0 || input >= 4)
-			return -EINVAL;
+static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+	dprintk(2, "VIDIOC_G_AUDIO: %d\n", a->index);
+	if (a->index != 0)
+		return -EINVAL;
+	memcpy(a, &msp3400_v4l2_audio, sizeof(struct v4l2_audio));
+	return 0;
+}
 
-		av7110->current_input = input;
-		return av7110_dvb_c_switch(fh);
-	}
-	case VIDIOC_G_AUDIO:
-	{
-		struct v4l2_audio *a = arg;
+static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+	dprintk(2, "VIDIOC_S_AUDIO: %d\n", a->index);
+	return 0;
+}
 
-		dprintk(2, "VIDIOC_G_AUDIO: %d\n", a->index);
-		if (a->index != 0)
-			return -EINVAL;
-		memcpy(a, &msp3400_v4l2_audio, sizeof(struct v4l2_audio));
-		break;
-	}
-	case VIDIOC_S_AUDIO:
-	{
-		struct v4l2_audio *a = arg;
-		dprintk(2, "VIDIOC_S_AUDIO: %d\n", a->index);
-		break;
-	}
-	case VIDIOC_G_SLICED_VBI_CAP:
-	{
-		struct v4l2_sliced_vbi_cap *cap = arg;
-		dprintk(2, "VIDIOC_G_SLICED_VBI_CAP\n");
-		memset(cap, 0, sizeof *cap);
-		if (FW_VERSION(av7110->arm_app) >= 0x2623) {
-			cap->service_set = V4L2_SLICED_WSS_625;
-			cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
-		}
-		break;
-	}
-	case VIDIOC_G_FMT:
-	{
-		struct v4l2_format *f = arg;
-		dprintk(2, "VIDIOC_G_FMT:\n");
-		if (f->type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ||
-		    FW_VERSION(av7110->arm_app) < 0x2623)
-			return -EAGAIN; /* handled by core driver */
-		memset(&f->fmt.sliced, 0, sizeof f->fmt.sliced);
-		if (av7110->wssMode) {
-			f->fmt.sliced.service_set = V4L2_SLICED_WSS_625;
-			f->fmt.sliced.service_lines[0][23] = V4L2_SLICED_WSS_625;
-			f->fmt.sliced.io_size = sizeof (struct v4l2_sliced_vbi_data);
-		}
-		break;
+static int vidioc_g_sliced_vbi_cap(struct file *file, void *fh,
+					struct v4l2_sliced_vbi_cap *cap)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
+
+	dprintk(2, "VIDIOC_G_SLICED_VBI_CAP\n");
+	memset(cap, 0, sizeof(*cap));
+	if (FW_VERSION(av7110->arm_app) >= 0x2623) {
+		cap->service_set = V4L2_SLICED_WSS_625;
+		cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
 	}
-	case VIDIOC_S_FMT:
-	{
-		struct v4l2_format *f = arg;
-		dprintk(2, "VIDIOC_S_FMT\n");
-		if (f->type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ||
-		    FW_VERSION(av7110->arm_app) < 0x2623)
-			return -EAGAIN; /* handled by core driver */
-		if (f->fmt.sliced.service_set != V4L2_SLICED_WSS_625 &&
-		    f->fmt.sliced.service_lines[0][23] != V4L2_SLICED_WSS_625) {
-			memset(&f->fmt.sliced, 0, sizeof f->fmt.sliced);
-			/* WSS controlled by firmware */
-			av7110->wssMode = 0;
-			av7110->wssData = 0;
-			return av7110_fw_cmd(av7110, COMTYPE_ENCODER,
-					     SetWSSConfig, 1, 0);
-		} else {
-			memset(&f->fmt.sliced, 0, sizeof f->fmt.sliced);
-			f->fmt.sliced.service_set = V4L2_SLICED_WSS_625;
-			f->fmt.sliced.service_lines[0][23] = V4L2_SLICED_WSS_625;
-			f->fmt.sliced.io_size = sizeof (struct v4l2_sliced_vbi_data);
-			/* WSS controlled by userspace */
-			av7110->wssMode = 1;
-			av7110->wssData = 0;
-		}
-		break;
+	return 0;
+}
+
+static int vidioc_g_fmt_sliced_vbi_out(struct file *file, void *fh,
+					struct v4l2_format *f)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
+
+	dprintk(2, "VIDIOC_G_FMT:\n");
+	if (FW_VERSION(av7110->arm_app) < 0x2623)
+		return -EINVAL;
+	memset(&f->fmt.sliced, 0, sizeof f->fmt.sliced);
+	if (av7110->wssMode) {
+		f->fmt.sliced.service_set = V4L2_SLICED_WSS_625;
+		f->fmt.sliced.service_lines[0][23] = V4L2_SLICED_WSS_625;
+		f->fmt.sliced.io_size = sizeof(struct v4l2_sliced_vbi_data);
 	}
-	default:
-		printk("no such ioctl\n");
-		return -ENOIOCTLCMD;
+	return 0;
+}
+
+static int vidioc_s_fmt_sliced_vbi_out(struct file *file, void *fh,
+					struct v4l2_format *f)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;
+
+	dprintk(2, "VIDIOC_S_FMT\n");
+	if (FW_VERSION(av7110->arm_app) < 0x2623)
+		return -EINVAL;
+	if (f->fmt.sliced.service_set != V4L2_SLICED_WSS_625 &&
+	    f->fmt.sliced.service_lines[0][23] != V4L2_SLICED_WSS_625) {
+		memset(&f->fmt.sliced, 0, sizeof(f->fmt.sliced));
+		/* WSS controlled by firmware */
+		av7110->wssMode = 0;
+		av7110->wssData = 0;
+		return av7110_fw_cmd(av7110, COMTYPE_ENCODER,
+				     SetWSSConfig, 1, 0);
+	} else {
+		memset(&f->fmt.sliced, 0, sizeof(f->fmt.sliced));
+		f->fmt.sliced.service_set = V4L2_SLICED_WSS_625;
+		f->fmt.sliced.service_lines[0][23] = V4L2_SLICED_WSS_625;
+		f->fmt.sliced.io_size = sizeof(struct v4l2_sliced_vbi_data);
+		/* WSS controlled by userspace */
+		av7110->wssMode = 1;
+		av7110->wssData = 0;
 	}
 	return 0;
 }
@@ -609,22 +616,6 @@ static ssize_t av7110_vbi_write(struct file *file, const char __user *data, size
  * INITIALIZATION
  ****************************************************************************/
 
-static struct saa7146_extension_ioctls ioctls[] = {
-	{ VIDIOC_ENUMINPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_INPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_INPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_FREQUENCY,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_FREQUENCY,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_TUNER,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_TUNER,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_AUDIO,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_AUDIO,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_SLICED_VBI_CAP, SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_FMT,		SAA7146_BEFORE },
-	{ VIDIOC_S_FMT,		SAA7146_BEFORE },
-	{ 0, 0 }
-};
-
 static u8 saa7113_init_regs[] = {
 	0x02, 0xd0,
 	0x03, 0x23,
@@ -788,20 +779,34 @@ int av7110_init_analog_module(struct av7110 *av7110)
 int av7110_init_v4l(struct av7110 *av7110)
 {
 	struct saa7146_dev* dev = av7110->dev;
+	struct saa7146_ext_vv *vv_data;
 	int ret;
 
 	/* special case DVB-C: these cards have an analog tuner
 	   plus need some special handling, so we have separate
 	   saa7146_ext_vv data for these... */
 	if (av7110->analog_tuner_flags)
-		ret = saa7146_vv_init(dev, &av7110_vv_data_c);
+		vv_data = &av7110_vv_data_c;
 	else
-		ret = saa7146_vv_init(dev, &av7110_vv_data_st);
+		vv_data = &av7110_vv_data_st;
+	ret = saa7146_vv_init(dev, vv_data);
 
 	if (ret) {
 		ERR(("cannot init capture device. skipping.\n"));
 		return -ENODEV;
 	}
+	vv_data->ops.vidioc_enum_input = vidioc_enum_input;
+	vv_data->ops.vidioc_g_input = vidioc_g_input;
+	vv_data->ops.vidioc_s_input = vidioc_s_input;
+	vv_data->ops.vidioc_g_tuner = vidioc_g_tuner;
+	vv_data->ops.vidioc_s_tuner = vidioc_s_tuner;
+	vv_data->ops.vidioc_g_frequency = vidioc_g_frequency;
+	vv_data->ops.vidioc_s_frequency = vidioc_s_frequency;
+	vv_data->ops.vidioc_g_audio = vidioc_g_audio;
+	vv_data->ops.vidioc_s_audio = vidioc_s_audio;
+	vv_data->ops.vidioc_g_sliced_vbi_cap = vidioc_g_sliced_vbi_cap;
+	vv_data->ops.vidioc_g_fmt_sliced_vbi_out = vidioc_g_fmt_sliced_vbi_out;
+	vv_data->ops.vidioc_s_fmt_sliced_vbi_out = vidioc_s_fmt_sliced_vbi_out;
 
 	if (saa7146_register_device(&av7110->v4l_dev, dev, "av7110", VFL_TYPE_GRABBER)) {
 		ERR(("cannot register capture device. skipping.\n"));
@@ -900,9 +905,6 @@ static struct saa7146_ext_vv av7110_vv_data_st = {
 	.num_stds	= ARRAY_SIZE(standard),
 	.std_callback	= &std_callback,
 
-	.ioctls		= &ioctls[0],
-	.ioctl		= av7110_ioctl,
-
 	.vbi_fops.open	= av7110_vbi_reset,
 	.vbi_fops.release = av7110_vbi_reset,
 	.vbi_fops.write	= av7110_vbi_write,
@@ -918,9 +920,6 @@ static struct saa7146_ext_vv av7110_vv_data_c = {
 	.num_stds	= ARRAY_SIZE(standard),
 	.std_callback	= &std_callback,
 
-	.ioctls		= &ioctls[0],
-	.ioctl		= av7110_ioctl,
-
 	.vbi_fops.open	= av7110_vbi_reset,
 	.vbi_fops.release = av7110_vbi_reset,
 	.vbi_fops.write	= av7110_vbi_write,
diff --git a/drivers/media/dvb/ttpci/budget-av.c b/drivers/media/dvb/ttpci/budget-av.c
index 4182121d7e5d..855fe74b640b 100644
--- a/drivers/media/dvb/ttpci/budget-av.c
+++ b/drivers/media/dvb/ttpci/budget-av.c
@@ -1404,6 +1404,41 @@ static int budget_av_detach(struct saa7146_dev *dev)
 	return err;
 }
 
+#define KNC1_INPUTS 2
+static struct v4l2_input knc1_inputs[KNC1_INPUTS] = {
+	{0, "Composite", V4L2_INPUT_TYPE_TUNER, 1, 0, V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0},
+	{1, "S-Video", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0},
+};
+
+static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
+{
+	dprintk(1, "VIDIOC_ENUMINPUT %d.\n", i->index);
+	if (i->index < 0 || i->index >= KNC1_INPUTS)
+		return -EINVAL;
+	memcpy(i, &knc1_inputs[i->index], sizeof(struct v4l2_input));
+	return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct budget_av *budget_av = (struct budget_av *)dev->ext_priv;
+
+	*i = budget_av->cur_input;
+
+	dprintk(1, "VIDIOC_G_INPUT %d.\n", *i);
+	return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct budget_av *budget_av = (struct budget_av *)dev->ext_priv;
+
+	dprintk(1, "VIDIOC_S_INPUT %d.\n", input);
+	return saa7113_setinput(budget_av, input);
+}
+
 static struct saa7146_ext_vv vv_data;
 
 static int budget_av_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
@@ -1442,6 +1477,9 @@ static int budget_av_attach(struct saa7146_dev *dev, struct saa7146_pci_extensio
 			ERR(("cannot init vv subsystem.\n"));
 			return err;
 		}
+		vv_data.ops.vidioc_enum_input = vidioc_enum_input;
+		vv_data.ops.vidioc_g_input = vidioc_g_input;
+		vv_data.ops.vidioc_s_input = vidioc_s_input;
 
 		if ((err = saa7146_register_device(&budget_av->vd, dev, "knc1", VFL_TYPE_GRABBER))) {
 			/* fixme: proper cleanup here */
@@ -1480,54 +1518,6 @@ static int budget_av_attach(struct saa7146_dev *dev, struct saa7146_pci_extensio
 	return 0;
 }
 
-#define KNC1_INPUTS 2
-static struct v4l2_input knc1_inputs[KNC1_INPUTS] = {
-	{0, "Composite", V4L2_INPUT_TYPE_TUNER, 1, 0, V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0},
-	{1, "S-Video", V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0},
-};
-
-static struct saa7146_extension_ioctls ioctls[] = {
-	{VIDIOC_ENUMINPUT, SAA7146_EXCLUSIVE},
-	{VIDIOC_G_INPUT, SAA7146_EXCLUSIVE},
-	{VIDIOC_S_INPUT, SAA7146_EXCLUSIVE},
-	{0, 0}
-};
-
-static long av_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
-{
-	struct saa7146_dev *dev = fh->dev;
-	struct budget_av *budget_av = (struct budget_av *) dev->ext_priv;
-
-	switch (cmd) {
-	case VIDIOC_ENUMINPUT:{
-		struct v4l2_input *i = arg;
-
-		dprintk(1, "VIDIOC_ENUMINPUT %d.\n", i->index);
-		if (i->index < 0 || i->index >= KNC1_INPUTS) {
-			return -EINVAL;
-		}
-		memcpy(i, &knc1_inputs[i->index], sizeof(struct v4l2_input));
-		return 0;
-	}
-	case VIDIOC_G_INPUT:{
-		int *input = (int *) arg;
-
-		*input = budget_av->cur_input;
-
-		dprintk(1, "VIDIOC_G_INPUT %d.\n", *input);
-		return 0;
-	}
-	case VIDIOC_S_INPUT:{
-		int input = *(int *) arg;
-		dprintk(1, "VIDIOC_S_INPUT %d.\n", input);
-		return saa7113_setinput(budget_av, input);
-	}
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
 static struct saa7146_standard standard[] = {
 	{.name = "PAL",.id = V4L2_STD_PAL,
 	 .v_offset = 0x17,.v_field = 288,
@@ -1546,8 +1536,6 @@ static struct saa7146_ext_vv vv_data = {
 	.flags = 0,
 	.stds = &standard[0],
 	.num_stds = ARRAY_SIZE(standard),
-	.ioctls = &ioctls[0],
-	.ioctl = av_ioctl,
 };
 
 static struct saa7146_extension budget_extension;
diff --git a/drivers/media/video/hexium_gemini.c b/drivers/media/video/hexium_gemini.c
index 79393d1772e4..8e1463ee1b64 100644
--- a/drivers/media/video/hexium_gemini.c
+++ b/drivers/media/video/hexium_gemini.c
@@ -56,17 +56,6 @@ struct hexium_data
 	u8 byte;
 };
 
-static struct saa7146_extension_ioctls ioctls[] = {
-	{ VIDIOC_G_INPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_INPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_QUERYCTRL, 	SAA7146_BEFORE },
-	{ VIDIOC_ENUMINPUT, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_STD,		SAA7146_AFTER },
-	{ VIDIOC_G_CTRL,	SAA7146_BEFORE },
-	{ VIDIOC_S_CTRL,	SAA7146_BEFORE },
-	{ 0,			0 }
-};
-
 #define HEXIUM_CONTROLS	1
 static struct v4l2_queryctrl hexium_controls[] = {
 	{ V4L2_CID_PRIVATE_BASE, V4L2_CTRL_TYPE_BOOLEAN, "B/W", 0, 1, 1, 0, 0 },
@@ -231,6 +220,132 @@ static int hexium_set_standard(struct hexium *hexium, struct hexium_data *vdec)
 	return 0;
 }
 
+static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
+{
+	DEB_EE(("VIDIOC_ENUMINPUT %d.\n", i->index));
+
+	if (i->index < 0 || i->index >= HEXIUM_INPUTS)
+		return -EINVAL;
+
+	memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
+
+	DEB_D(("v4l2_ioctl: VIDIOC_ENUMINPUT %d.\n", i->index));
+	return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *fh, unsigned int *input)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct hexium *hexium = (struct hexium *) dev->ext_priv;
+
+	*input = hexium->cur_input;
+
+	DEB_D(("VIDIOC_G_INPUT: %d\n", *input));
+	return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct hexium *hexium = (struct hexium *) dev->ext_priv;
+
+	DEB_EE(("VIDIOC_S_INPUT %d.\n", input));
+
+	if (input < 0 || input >= HEXIUM_INPUTS)
+		return -EINVAL;
+
+	hexium->cur_input = input;
+	hexium_set_input(hexium, input);
+	return 0;
+}
+
+/* the saa7146 provides some controls (brightness, contrast, saturation)
+   which gets registered *after* this function. because of this we have
+   to return with a value != 0 even if the function succeded.. */
+static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qc)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	int i;
+
+	for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
+		if (hexium_controls[i].id == qc->id) {
+			*qc = hexium_controls[i];
+			DEB_D(("VIDIOC_QUERYCTRL %d.\n", qc->id));
+			return 0;
+		}
+	}
+	return dev->ext_vv_data->core_ops->vidioc_queryctrl(file, fh, qc);
+}
+
+static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct hexium *hexium = (struct hexium *) dev->ext_priv;
+	int i;
+
+	for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
+		if (hexium_controls[i].id == vc->id)
+			break;
+	}
+
+	if (i < 0)
+		return dev->ext_vv_data->core_ops->vidioc_g_ctrl(file, fh, vc);
+
+	if (vc->id == V4L2_CID_PRIVATE_BASE) {
+		vc->value = hexium->cur_bw;
+		DEB_D(("VIDIOC_G_CTRL BW:%d.\n", vc->value));
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct hexium *hexium = (struct hexium *) dev->ext_priv;
+	int i = 0;
+
+	for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
+		if (hexium_controls[i].id == vc->id)
+			break;
+	}
+
+	if (i < 0)
+		return dev->ext_vv_data->core_ops->vidioc_s_ctrl(file, fh, vc);
+
+	if (vc->id == V4L2_CID_PRIVATE_BASE)
+		hexium->cur_bw = vc->value;
+
+	DEB_D(("VIDIOC_S_CTRL BW:%d.\n", hexium->cur_bw));
+
+	if (0 == hexium->cur_bw && V4L2_STD_PAL == hexium->cur_std) {
+		hexium_set_standard(hexium, hexium_pal);
+		return 0;
+	}
+	if (0 == hexium->cur_bw && V4L2_STD_NTSC == hexium->cur_std) {
+		hexium_set_standard(hexium, hexium_ntsc);
+		return 0;
+	}
+	if (0 == hexium->cur_bw && V4L2_STD_SECAM == hexium->cur_std) {
+		hexium_set_standard(hexium, hexium_secam);
+		return 0;
+	}
+	if (1 == hexium->cur_bw && V4L2_STD_PAL == hexium->cur_std) {
+		hexium_set_standard(hexium, hexium_pal_bw);
+		return 0;
+	}
+	if (1 == hexium->cur_bw && V4L2_STD_NTSC == hexium->cur_std) {
+		hexium_set_standard(hexium, hexium_ntsc_bw);
+		return 0;
+	}
+	if (1 == hexium->cur_bw && V4L2_STD_SECAM == hexium->cur_std)
+		/* fixme: is there no bw secam mode? */
+		return -EINVAL;
+
+	return -EINVAL;
+}
+
+
 static struct saa7146_ext_vv vv_data;
 
 /* this function only gets called when the probing was successful */
@@ -279,6 +394,12 @@ static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_d
 	hexium->cur_input = 0;
 
 	saa7146_vv_init(dev, &vv_data);
+	vv_data.ops.vidioc_queryctrl = vidioc_queryctrl;
+	vv_data.ops.vidioc_g_ctrl = vidioc_g_ctrl;
+	vv_data.ops.vidioc_s_ctrl = vidioc_s_ctrl;
+	vv_data.ops.vidioc_enum_input = vidioc_enum_input;
+	vv_data.ops.vidioc_g_input = vidioc_g_input;
+	vv_data.ops.vidioc_s_input = vidioc_s_input;
 	if (0 != saa7146_register_device(&hexium->video_dev, dev, "hexium gemini", VFL_TYPE_GRABBER)) {
 		printk("hexium_gemini: cannot register capture v4l2 device. skipping.\n");
 		return -1;
@@ -306,153 +427,6 @@ static int hexium_detach(struct saa7146_dev *dev)
 	return 0;
 }
 
-static long hexium_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
-{
-	struct saa7146_dev *dev = fh->dev;
-	struct hexium *hexium = (struct hexium *) dev->ext_priv;
-/*
-	struct saa7146_vv *vv = dev->vv_data;
-*/
-	switch (cmd) {
-	case VIDIOC_ENUMINPUT:
-		{
-			struct v4l2_input *i = arg;
-			DEB_EE(("VIDIOC_ENUMINPUT %d.\n", i->index));
-
-			if (i->index < 0 || i->index >= HEXIUM_INPUTS) {
-				return -EINVAL;
-			}
-
-			memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
-
-			DEB_D(("v4l2_ioctl: VIDIOC_ENUMINPUT %d.\n", i->index));
-			return 0;
-		}
-	case VIDIOC_G_INPUT:
-		{
-			int *input = (int *) arg;
-			*input = hexium->cur_input;
-
-			DEB_D(("VIDIOC_G_INPUT: %d\n", *input));
-			return 0;
-		}
-	case VIDIOC_S_INPUT:
-		{
-			int input = *(int *) arg;
-
-			DEB_EE(("VIDIOC_S_INPUT %d.\n", input));
-
-			if (input < 0 || input >= HEXIUM_INPUTS) {
-				return -EINVAL;
-			}
-
-			hexium->cur_input = input;
-			hexium_set_input(hexium, input);
-
-			return 0;
-		}
-		/* the saa7146 provides some controls (brightness, contrast, saturation)
-		   which gets registered *after* this function. because of this we have
-		   to return with a value != 0 even if the function succeded.. */
-	case VIDIOC_QUERYCTRL:
-		{
-			struct v4l2_queryctrl *qc = arg;
-			int i;
-
-			for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
-				if (hexium_controls[i].id == qc->id) {
-					*qc = hexium_controls[i];
-					DEB_D(("VIDIOC_QUERYCTRL %d.\n", qc->id));
-					return 0;
-				}
-			}
-			return -EAGAIN;
-		}
-	case VIDIOC_G_CTRL:
-		{
-			struct v4l2_control *vc = arg;
-			int i;
-
-			for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
-				if (hexium_controls[i].id == vc->id) {
-					break;
-				}
-			}
-
-			if (i < 0) {
-				return -EAGAIN;
-			}
-
-			switch (vc->id) {
-			case V4L2_CID_PRIVATE_BASE:{
-					vc->value = hexium->cur_bw;
-					DEB_D(("VIDIOC_G_CTRL BW:%d.\n", vc->value));
-					return 0;
-				}
-			}
-			return -EINVAL;
-		}
-
-	case VIDIOC_S_CTRL:
-		{
-			struct v4l2_control *vc = arg;
-			int i = 0;
-
-			for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
-				if (hexium_controls[i].id == vc->id) {
-					break;
-				}
-			}
-
-			if (i < 0) {
-				return -EAGAIN;
-			}
-
-			switch (vc->id) {
-			case V4L2_CID_PRIVATE_BASE:{
-					hexium->cur_bw = vc->value;
-					break;
-				}
-			}
-
-			DEB_D(("VIDIOC_S_CTRL BW:%d.\n", hexium->cur_bw));
-
-			if (0 == hexium->cur_bw && V4L2_STD_PAL == hexium->cur_std) {
-				hexium_set_standard(hexium, hexium_pal);
-				return 0;
-			}
-			if (0 == hexium->cur_bw && V4L2_STD_NTSC == hexium->cur_std) {
-				hexium_set_standard(hexium, hexium_ntsc);
-				return 0;
-			}
-			if (0 == hexium->cur_bw && V4L2_STD_SECAM == hexium->cur_std) {
-				hexium_set_standard(hexium, hexium_secam);
-				return 0;
-			}
-			if (1 == hexium->cur_bw && V4L2_STD_PAL == hexium->cur_std) {
-				hexium_set_standard(hexium, hexium_pal_bw);
-				return 0;
-			}
-			if (1 == hexium->cur_bw && V4L2_STD_NTSC == hexium->cur_std) {
-				hexium_set_standard(hexium, hexium_ntsc_bw);
-				return 0;
-			}
-			if (1 == hexium->cur_bw && V4L2_STD_SECAM == hexium->cur_std) {
-				/* fixme: is there no bw secam mode? */
-				return -EINVAL;
-			}
-
-			return -EINVAL;
-		}
-	default:
-/*
-		DEB_D(("hexium_ioctl() does not handle this ioctl.\n"));
-*/
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
 static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *std)
 {
 	struct hexium *hexium = (struct hexium *) dev->ext_priv;
@@ -514,8 +488,6 @@ static struct saa7146_ext_vv vv_data = {
 	.stds = &hexium_standards[0],
 	.num_stds = sizeof(hexium_standards) / sizeof(struct saa7146_standard),
 	.std_callback = &std_callback,
-	.ioctls = &ioctls[0],
-	.ioctl = hexium_ioctl,
 };
 
 static struct saa7146_extension hexium_extension = {
diff --git a/drivers/media/video/hexium_orion.c b/drivers/media/video/hexium_orion.c
index 074bec711fe0..2bc39f628455 100644
--- a/drivers/media/video/hexium_orion.c
+++ b/drivers/media/video/hexium_orion.c
@@ -57,14 +57,6 @@ struct hexium_data
 	u8 byte;
 };
 
-static struct saa7146_extension_ioctls ioctls[] = {
-	{ VIDIOC_G_INPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_INPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_ENUMINPUT, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_STD,		SAA7146_AFTER },
-	{ 0,			0 }
-};
-
 struct hexium
 {
 	int type;
@@ -329,6 +321,44 @@ static int hexium_set_input(struct hexium *hexium, int input)
 	return 0;
 }
 
+static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
+{
+	DEB_EE(("VIDIOC_ENUMINPUT %d.\n", i->index));
+
+	if (i->index < 0 || i->index >= HEXIUM_INPUTS)
+		return -EINVAL;
+
+	memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
+
+	DEB_D(("v4l2_ioctl: VIDIOC_ENUMINPUT %d.\n", i->index));
+	return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *fh, unsigned int *input)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct hexium *hexium = (struct hexium *) dev->ext_priv;
+
+	*input = hexium->cur_input;
+
+	DEB_D(("VIDIOC_G_INPUT: %d\n", *input));
+	return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct hexium *hexium = (struct hexium *) dev->ext_priv;
+
+	if (input < 0 || input >= HEXIUM_INPUTS)
+		return -EINVAL;
+
+	hexium->cur_input = input;
+	hexium_set_input(hexium, input);
+
+	return 0;
+}
+
 static struct saa7146_ext_vv vv_data;
 
 /* this function only gets called when the probing was successful */
@@ -339,6 +369,9 @@ static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_d
 	DEB_EE((".\n"));
 
 	saa7146_vv_init(dev, &vv_data);
+	vv_data.ops.vidioc_enum_input = vidioc_enum_input;
+	vv_data.ops.vidioc_g_input = vidioc_g_input;
+	vv_data.ops.vidioc_s_input = vidioc_s_input;
 	if (0 != saa7146_register_device(&hexium->video_dev, dev, "hexium orion", VFL_TYPE_GRABBER)) {
 		printk("hexium_orion: cannot register capture v4l2 device. skipping.\n");
 		return -1;
@@ -370,58 +403,6 @@ static int hexium_detach(struct saa7146_dev *dev)
 	return 0;
 }
 
-static long hexium_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
-{
-	struct saa7146_dev *dev = fh->dev;
-	struct hexium *hexium = (struct hexium *) dev->ext_priv;
-/*
-	struct saa7146_vv *vv = dev->vv_data;
-*/
-	switch (cmd) {
-	case VIDIOC_ENUMINPUT:
-		{
-			struct v4l2_input *i = arg;
-			DEB_EE(("VIDIOC_ENUMINPUT %d.\n", i->index));
-
-			if (i->index < 0 || i->index >= HEXIUM_INPUTS) {
-				return -EINVAL;
-			}
-
-			memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
-
-			DEB_D(("v4l2_ioctl: VIDIOC_ENUMINPUT %d.\n", i->index));
-			return 0;
-		}
-	case VIDIOC_G_INPUT:
-		{
-			int *input = (int *) arg;
-			*input = hexium->cur_input;
-
-			DEB_D(("VIDIOC_G_INPUT: %d\n", *input));
-			return 0;
-		}
-	case VIDIOC_S_INPUT:
-		{
-			int input = *(int *) arg;
-
-			if (input < 0 || input >= HEXIUM_INPUTS) {
-				return -EINVAL;
-			}
-
-			hexium->cur_input = input;
-			hexium_set_input(hexium, input);
-
-			return 0;
-		}
-	default:
-/*
-		DEB_D(("hexium_ioctl() does not handle this ioctl.\n"));
-*/
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
 static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *std)
 {
 	return 0;
@@ -479,8 +460,6 @@ static struct saa7146_ext_vv vv_data = {
 	.stds = &hexium_standards[0],
 	.num_stds = sizeof(hexium_standards) / sizeof(struct saa7146_standard),
 	.std_callback = &std_callback,
-	.ioctls = &ioctls[0],
-	.ioctl = hexium_ioctl,
 };
 
 static struct saa7146_extension extension = {
diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index e3cbe14c349a..8ecda8dfbd04 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -110,26 +110,6 @@ static struct v4l2_queryctrl mxb_controls[] = {
 	{ V4L2_CID_AUDIO_MUTE, V4L2_CTRL_TYPE_BOOLEAN, "Mute", 0, 1, 1, 0, 0 },
 };
 
-static struct saa7146_extension_ioctls ioctls[] = {
-	{ VIDIOC_ENUMINPUT, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_INPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_INPUT,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_QUERYCTRL, 	SAA7146_BEFORE },
-	{ VIDIOC_G_CTRL,	SAA7146_BEFORE },
-	{ VIDIOC_S_CTRL,	SAA7146_BEFORE },
-	{ VIDIOC_G_TUNER, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_TUNER, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_FREQUENCY,	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_FREQUENCY, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_G_AUDIO, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_S_AUDIO, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_DBG_G_REGISTER, 	SAA7146_EXCLUSIVE },
-	{ VIDIOC_DBG_S_REGISTER, 	SAA7146_EXCLUSIVE },
-	{ MXB_S_AUDIO_CD, 	SAA7146_EXCLUSIVE },	/* custom control */
-	{ MXB_S_AUDIO_LINE, 	SAA7146_EXCLUSIVE },	/* custom control */
-	{ 0,			0 }
-};
-
 struct mxb
 {
 	struct video_device	*video_dev;
@@ -424,387 +404,430 @@ void mxb_irq_bh(struct saa7146_dev* dev, u32* irq_mask)
 }
 */
 
-static struct saa7146_ext_vv vv_data;
-
-/* this function only gets called when the probing was successful */
-static int mxb_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
+static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qc)
 {
-	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	int i;
 
-	DEB_EE(("dev:%p\n", dev));
+	for (i = MAXCONTROLS - 1; i >= 0; i--) {
+		if (mxb_controls[i].id == qc->id) {
+			*qc = mxb_controls[i];
+			DEB_D(("VIDIOC_QUERYCTRL %d.\n", qc->id));
+			return 0;
+		}
+	}
+	return dev->ext_vv_data->core_ops->vidioc_queryctrl(file, fh, qc);
+}
 
-	/* checking for i2c-devices can be omitted here, because we
-	   already did this in "mxb_vl42_probe" */
+static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+	int i;
 
-	saa7146_vv_init(dev, &vv_data);
-	if (saa7146_register_device(&mxb->video_dev, dev, "mxb", VFL_TYPE_GRABBER)) {
-		ERR(("cannot register capture v4l2 device. skipping.\n"));
-		return -1;
+	for (i = MAXCONTROLS - 1; i >= 0; i--) {
+		if (mxb_controls[i].id == vc->id)
+			break;
 	}
 
-	/* initialization stuff (vbi) (only for revision > 0 and for extensions which want it)*/
-	if (MXB_BOARD_CAN_DO_VBI(dev)) {
-		if (saa7146_register_device(&mxb->vbi_dev, dev, "mxb", VFL_TYPE_VBI)) {
-			ERR(("cannot register vbi v4l2 device. skipping.\n"));
-		}
-	}
+	if (i < 0)
+		return dev->ext_vv_data->core_ops->vidioc_g_ctrl(file, fh, vc);
 
-	i2c_use_client(mxb->tea6420_1);
-	i2c_use_client(mxb->tea6420_2);
-	i2c_use_client(mxb->tea6415c);
-	i2c_use_client(mxb->tda9840);
-	i2c_use_client(mxb->saa7111a);
-	i2c_use_client(mxb->tuner);
-
-	printk("mxb: found Multimedia eXtension Board #%d.\n", mxb_num);
+	if (vc->id == V4L2_CID_AUDIO_MUTE) {
+		vc->value = mxb->cur_mute;
+		DEB_D(("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d.\n", vc->value));
+		return 0;
+	}
 
-	mxb_num++;
-	mxb_init_done(dev);
+	DEB_EE(("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d.\n", vc->value));
 	return 0;
 }
 
-static int mxb_detach(struct saa7146_dev *dev)
+static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
 {
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+	int i = 0;
 
-	DEB_EE(("dev:%p\n", dev));
-
-	i2c_release_client(mxb->tea6420_1);
-	i2c_release_client(mxb->tea6420_2);
-	i2c_release_client(mxb->tea6415c);
-	i2c_release_client(mxb->tda9840);
-	i2c_release_client(mxb->saa7111a);
-	i2c_release_client(mxb->tuner);
-
-	saa7146_unregister_device(&mxb->video_dev,dev);
-	if (MXB_BOARD_CAN_DO_VBI(dev))
-		saa7146_unregister_device(&mxb->vbi_dev, dev);
-	saa7146_vv_release(dev);
+	for (i = MAXCONTROLS - 1; i >= 0; i--) {
+		if (mxb_controls[i].id == vc->id)
+			break;
+	}
 
-	mxb_num--;
+	if (i < 0)
+		return dev->ext_vv_data->core_ops->vidioc_s_ctrl(file, fh, vc);
 
-	i2c_del_adapter(&mxb->i2c_adapter);
-	kfree(mxb);
+	if (vc->id == V4L2_CID_AUDIO_MUTE) {
+		mxb->cur_mute = vc->value;
+		if (!vc->value) {
+			/* switch the audio-source */
+			mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
+					&TEA6420_line[video_audio_connect[mxb->cur_input]][0]);
+			mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
+					&TEA6420_line[video_audio_connect[mxb->cur_input]][1]);
+		} else {
+			mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
+					&TEA6420_line[6][0]);
+			mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
+					&TEA6420_line[6][1]);
+		}
+		DEB_EE(("VIDIOC_S_CTRL, V4L2_CID_AUDIO_MUTE: %d.\n", vc->value));
+	}
+	return 0;
+}
 
+static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
+{
+	DEB_EE(("VIDIOC_ENUMINPUT %d.\n", i->index));
+	if (i->index < 0 || i->index >= MXB_INPUTS)
+		return -EINVAL;
+	memcpy(i, &mxb_inputs[i->index], sizeof(struct v4l2_input));
 	return 0;
 }
 
-static long mxb_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
+static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
 {
-	struct saa7146_dev *dev = fh->dev;
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 	struct mxb *mxb = (struct mxb *)dev->ext_priv;
-	struct saa7146_vv *vv = dev->vv_data;
+	*i = mxb->cur_input;
 
-	switch(cmd) {
-	case VIDIOC_ENUMINPUT:
-	{
-		struct v4l2_input *i = arg;
+	DEB_EE(("VIDIOC_G_INPUT %d.\n", *i));
+	return 0;
+}
 
-		DEB_EE(("VIDIOC_ENUMINPUT %d.\n",i->index));
-		if (i->index < 0 || i->index >= MXB_INPUTS)
-			return -EINVAL;
-		memcpy(i, &mxb_inputs[i->index], sizeof(struct v4l2_input));
-		return 0;
-	}
-	/* the saa7146 provides some controls (brightness, contrast, saturation)
-	   which gets registered *after* this function. because of this we have
-	   to return with a value != 0 even if the function succeded.. */
-	case VIDIOC_QUERYCTRL:
-	{
-		struct v4l2_queryctrl *qc = arg;
-		int i;
-
-		for (i = MAXCONTROLS - 1; i >= 0; i--) {
-			if (mxb_controls[i].id == qc->id) {
-				*qc = mxb_controls[i];
-				DEB_D(("VIDIOC_QUERYCTRL %d.\n", qc->id));
-				return 0;
-			}
-		}
-		return -EAGAIN;
-	}
-	case VIDIOC_G_CTRL:
-	{
-		struct v4l2_control *vc = arg;
-		int i;
+static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+	struct tea6415c_multiplex vm;
+	struct v4l2_routing route;
+	int i = 0;
 
-		for (i = MAXCONTROLS - 1; i >= 0; i--) {
-			if (mxb_controls[i].id == vc->id)
-				break;
-		}
+	DEB_EE(("VIDIOC_S_INPUT %d.\n", input));
 
-		if (i < 0)
-			return -EAGAIN;
+	if (input < 0 || input >= MXB_INPUTS)
+		return -EINVAL;
 
-		if (vc->id == V4L2_CID_AUDIO_MUTE) {
-			vc->value = mxb->cur_mute;
-			DEB_D(("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d.\n", vc->value));
-			return 0;
-		}
+	mxb->cur_input = input;
 
-		DEB_EE(("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d.\n", vc->value));
-		return 0;
-	}
+	saa7146_set_hps_source_and_sync(dev, input_port_selection[input].hps_source,
+			input_port_selection[input].hps_sync);
 
-	case VIDIOC_S_CTRL:
-	{
-		struct v4l2_control *vc = arg;
-		int i = 0;
+	/* prepare switching of tea6415c and saa7111a;
+	   have a look at the 'background'-file for further informations  */
+	switch (input) {
+	case TUNER:
+		i = SAA7115_COMPOSITE0;
+		vm.in  = 3;
+		vm.out = 17;
 
-		for (i = MAXCONTROLS - 1; i >= 0; i--) {
-			if (mxb_controls[i].id == vc->id)
-				break;
+		if (mxb->tea6415c->driver->command(mxb->tea6415c, TEA6415C_SWITCH, &vm)) {
+			printk(KERN_ERR "VIDIOC_S_INPUT: could not address tea6415c #1\n");
+			return -EFAULT;
 		}
+		/* connect tuner-output always to multicable */
+		vm.in  = 3;
+		vm.out = 13;
+		break;
+	case AUX3_YC:
+		/* nothing to be done here. aux3_yc is
+		   directly connected to the saa711a */
+		i = SAA7115_SVIDEO1;
+		break;
+	case AUX3:
+		/* nothing to be done here. aux3 is
+		   directly connected to the saa711a */
+		i = SAA7115_COMPOSITE1;
+		break;
+	case AUX1:
+		i = SAA7115_COMPOSITE0;
+		vm.in  = 1;
+		vm.out = 17;
+		break;
+	}
 
-		if (i < 0)
-			return -EAGAIN;
-
-		if (vc->id == V4L2_CID_AUDIO_MUTE) {
-			mxb->cur_mute = vc->value;
-			if (!vc->value) {
-				/* switch the audio-source */
-				mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
-						&TEA6420_line[video_audio_connect[mxb->cur_input]][0]);
-				mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
-						&TEA6420_line[video_audio_connect[mxb->cur_input]][1]);
-			} else {
-				mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
-						&TEA6420_line[6][0]);
-				mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
-						&TEA6420_line[6][1]);
-			}
-			DEB_EE(("VIDIOC_S_CTRL, V4L2_CID_AUDIO_MUTE: %d.\n", vc->value));
+	/* switch video in tea6415c only if necessary */
+	switch (input) {
+	case TUNER:
+	case AUX1:
+		if (mxb->tea6415c->driver->command(mxb->tea6415c, TEA6415C_SWITCH, &vm)) {
+			printk(KERN_ERR "VIDIOC_S_INPUT: could not address tea6415c #3\n");
+			return -EFAULT;
 		}
-		return 0;
+		break;
+	default:
+		break;
 	}
-	case VIDIOC_G_INPUT:
-	{
-		int *input = (int *)arg;
-		*input = mxb->cur_input;
 
-		DEB_EE(("VIDIOC_G_INPUT %d.\n", *input));
-		return 0;
+	/* switch video in saa7111a */
+	route.input = i;
+	route.output = 0;
+	if (mxb->saa7111a->driver->command(mxb->saa7111a, VIDIOC_INT_S_VIDEO_ROUTING, &route))
+		printk(KERN_ERR "VIDIOC_S_INPUT: could not address saa7111a #1.\n");
+
+	/* switch the audio-source only if necessary */
+	if (0 == mxb->cur_mute) {
+		mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
+				&TEA6420_line[video_audio_connect[input]][0]);
+		mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
+				&TEA6420_line[video_audio_connect[input]][1]);
 	}
-	case VIDIOC_S_INPUT:
-	{
-		int input = *(int *)arg;
-		struct tea6415c_multiplex vm;
-		struct v4l2_routing route;
-		int i = 0;
 
-		DEB_EE(("VIDIOC_S_INPUT %d.\n", input));
+	return 0;
+}
 
-		if (input < 0 || input >= MXB_INPUTS)
-			return -EINVAL;
+static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
-		mxb->cur_input = input;
+	if (t->index) {
+		DEB_D(("VIDIOC_G_TUNER: channel %d does not have a tuner attached.\n", t->index));
+		return -EINVAL;
+	}
 
-		saa7146_set_hps_source_and_sync(dev, input_port_selection[input].hps_source,
-				input_port_selection[input].hps_sync);
+	DEB_EE(("VIDIOC_G_TUNER: %d\n", t->index));
 
-		/* prepare switching of tea6415c and saa7111a;
-		   have a look at the 'background'-file for further informations  */
-		switch (input) {
-		case TUNER:
-			i = SAA7115_COMPOSITE0;
-			vm.in  = 3;
-			vm.out = 17;
+	memset(t, 0, sizeof(*t));
+	i2c_clients_command(&mxb->i2c_adapter, VIDIOC_G_TUNER, t);
 
-			if (mxb->tea6415c->driver->command(mxb->tea6415c, TEA6415C_SWITCH, &vm)) {
-				printk(KERN_ERR "VIDIOC_S_INPUT: could not address tea6415c #1\n");
-				return -EFAULT;
-			}
-			/* connect tuner-output always to multicable */
-			vm.in  = 3;
-			vm.out = 13;
-			break;
-		case AUX3_YC:
-			/* nothing to be done here. aux3_yc is
-			   directly connected to the saa711a */
-			i = SAA7115_SVIDEO1;
-			break;
-		case AUX3:
-			/* nothing to be done here. aux3 is
-			   directly connected to the saa711a */
-			i = SAA7115_COMPOSITE1;
-			break;
-		case AUX1:
-			i = SAA7115_COMPOSITE0;
-			vm.in  = 1;
-			vm.out = 17;
-			break;
-		}
+	strlcpy(t->name, "TV Tuner", sizeof(t->name));
+	t->type = V4L2_TUNER_ANALOG_TV;
+	t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
+			V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
+	t->audmode = mxb->cur_mode;
+	return 0;
+}
 
-		/* switch video in tea6415c only if necessary */
-		switch (input) {
-		case TUNER:
-		case AUX1:
-			if (mxb->tea6415c->driver->command(mxb->tea6415c, TEA6415C_SWITCH, &vm)) {
-				printk(KERN_ERR "VIDIOC_S_INPUT: could not address tea6415c #3\n");
-				return -EFAULT;
-			}
-			break;
-		default:
-			break;
-		}
+static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
-		/* switch video in saa7111a */
-		route.input = i;
-		route.output = 0;
-		if (mxb->saa7111a->driver->command(mxb->saa7111a, VIDIOC_INT_S_VIDEO_ROUTING, &route))
-			printk("VIDIOC_S_INPUT: could not address saa7111a #1.\n");
+	if (t->index) {
+		DEB_D(("VIDIOC_S_TUNER: channel %d does not have a tuner attached.\n", t->index));
+		return -EINVAL;
+	}
 
-		/* switch the audio-source only if necessary */
-		if( 0 == mxb->cur_mute ) {
-			mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
-					&TEA6420_line[video_audio_connect[input]][0]);
-			mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
-				       &TEA6420_line[video_audio_connect[input]][1]);
-		}
+	mxb->cur_mode = t->audmode;
+	i2c_clients_command(&mxb->i2c_adapter, VIDIOC_S_TUNER, t);
+	return 0;
+}
 
-		return 0;
+static int vidioc_g_frequency(struct file *file, void *fh, struct v4l2_frequency *f)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+
+	if (mxb->cur_input) {
+		DEB_D(("VIDIOC_G_FREQ: channel %d does not have a tuner!\n",
+					mxb->cur_input));
+		return -EINVAL;
 	}
-	case VIDIOC_G_TUNER:
-	{
-		struct v4l2_tuner *t = arg;
 
-		if (t->index) {
-			DEB_D(("VIDIOC_G_TUNER: channel %d does not have a tuner attached.\n", t->index));
-			return -EINVAL;
-		}
+	*f = mxb->cur_freq;
 
-		DEB_EE(("VIDIOC_G_TUNER: %d\n", t->index));
+	DEB_EE(("VIDIOC_G_FREQ: freq:0x%08x.\n", mxb->cur_freq.frequency));
+	return 0;
+}
 
-		memset(t, 0, sizeof(*t));
-		i2c_clients_command(&mxb->i2c_adapter, cmd, arg);
+static int vidioc_s_frequency(struct file *file, void *fh, struct v4l2_frequency *f)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+	struct saa7146_vv *vv = dev->vv_data;
 
-		strlcpy(t->name, "TV Tuner", sizeof(t->name));
-		t->type = V4L2_TUNER_ANALOG_TV;
-		t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO | \
-			V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
-		t->audmode = mxb->cur_mode;
-		return 0;
-	}
-	case VIDIOC_S_TUNER:
-	{
-		struct v4l2_tuner *t = arg;
+	if (f->tuner)
+		return -EINVAL;
 
-		if (t->index) {
-			DEB_D(("VIDIOC_S_TUNER: channel %d does not have a tuner attached.\n",t->index));
-			return -EINVAL;
-		}
+	if (V4L2_TUNER_ANALOG_TV != f->type)
+		return -EINVAL;
 
-		mxb->cur_mode = t->audmode;
-		i2c_clients_command(&mxb->i2c_adapter, cmd, arg);
-		return 0;
+	if (mxb->cur_input) {
+		DEB_D(("VIDIOC_S_FREQ: channel %d does not have a tuner!\n", mxb->cur_input));
+		return -EINVAL;
 	}
-	case VIDIOC_G_FREQUENCY:
-	{
-		struct v4l2_frequency *f = arg;
 
-		if (mxb->cur_input) {
-			DEB_D(("VIDIOC_G_FREQ: channel %d does not have a tuner!\n",
-						mxb->cur_input));
-			return -EINVAL;
-		}
+	mxb->cur_freq = *f;
+	DEB_EE(("VIDIOC_S_FREQUENCY: freq:0x%08x.\n", mxb->cur_freq.frequency));
 
-		*f = mxb->cur_freq;
+	/* tune in desired frequency */
+	mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_FREQUENCY, &mxb->cur_freq);
 
-		DEB_EE(("VIDIOC_G_FREQ: freq:0x%08x.\n", mxb->cur_freq.frequency));
-		return 0;
+	/* hack: changing the frequency should invalidate the vbi-counter (=> alevt) */
+	spin_lock(&dev->slock);
+	vv->vbi_fieldcount = 0;
+	spin_unlock(&dev->slock);
+
+	return 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+
+	if (a->index < 0 || a->index > MXB_INPUTS) {
+		DEB_D(("VIDIOC_G_AUDIO %d out of range.\n", a->index));
+		return -EINVAL;
 	}
-	case VIDIOC_S_FREQUENCY:
-	{
-		struct v4l2_frequency *f = arg;
 
-		if (f->tuner)
-			return -EINVAL;
+	DEB_EE(("VIDIOC_G_AUDIO %d.\n", a->index));
+	memcpy(a, &mxb_audios[video_audio_connect[mxb->cur_input]], sizeof(struct v4l2_audio));
+	return 0;
+}
 
-		if (V4L2_TUNER_ANALOG_TV != f->type)
-			return -EINVAL;
+static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+	DEB_D(("VIDIOC_S_AUDIO %d.\n", a->index));
+	return 0;
+}
 
-		if (mxb->cur_input) {
-			DEB_D(("VIDIOC_S_FREQ: channel %d does not have a tuner!\n", mxb->cur_input));
-			return -EINVAL;
-		}
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int vidioc_g_register(struct file *file, void *fh, struct v4l2_dbg_register *reg)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
-		mxb->cur_freq = *f;
-		DEB_EE(("VIDIOC_S_FREQUENCY: freq:0x%08x.\n", mxb->cur_freq.frequency));
+	i2c_clients_command(&mxb->i2c_adapter, VIDIOC_DBG_G_REGISTER, reg);
+	return 0;
+}
 
-		/* tune in desired frequency */
-		mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_FREQUENCY, &mxb->cur_freq);
+static int vidioc_s_register(struct file *file, void *fh, struct v4l2_dbg_register *reg)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
-		/* hack: changing the frequency should invalidate the vbi-counter (=> alevt) */
-		spin_lock(&dev->slock);
-		vv->vbi_fieldcount = 0;
-		spin_unlock(&dev->slock);
+	i2c_clients_command(&mxb->i2c_adapter, VIDIOC_DBG_S_REGISTER, reg);
+	return 0;
+}
+#endif
 
-		return 0;
-	}
+static long vidioc_default(struct file *file, void *fh, int cmd, void *arg)
+{
+	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+
+	switch (cmd) {
 	case MXB_S_AUDIO_CD:
 	{
-		int i = *(int*)arg;
+		int i = *(int *)arg;
 
 		if (i < 0 || i >= MXB_AUDIOS) {
-			DEB_D(("illegal argument to MXB_S_AUDIO_CD: i:%d.\n",i));
+			DEB_D(("illegal argument to MXB_S_AUDIO_CD: i:%d.\n", i));
 			return -EINVAL;
 		}
 
-		DEB_EE(("MXB_S_AUDIO_CD: i:%d.\n",i));
+		DEB_EE(("MXB_S_AUDIO_CD: i:%d.\n", i));
 
-		mxb->tea6420_1->driver->command(mxb->tea6420_1,TEA6420_SWITCH, &TEA6420_cd[i][0]);
-		mxb->tea6420_2->driver->command(mxb->tea6420_2,TEA6420_SWITCH, &TEA6420_cd[i][1]);
+		mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH, &TEA6420_cd[i][0]);
+		mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH, &TEA6420_cd[i][1]);
 
 		return 0;
 	}
 	case MXB_S_AUDIO_LINE:
 	{
-		int i = *(int*)arg;
+		int i = *(int *)arg;
 
 		if (i < 0 || i >= MXB_AUDIOS) {
-			DEB_D(("illegal argument to MXB_S_AUDIO_LINE: i:%d.\n",i));
+			DEB_D(("illegal argument to MXB_S_AUDIO_LINE: i:%d.\n", i));
 			return -EINVAL;
 		}
 
-		DEB_EE(("MXB_S_AUDIO_LINE: i:%d.\n",i));
-		mxb->tea6420_1->driver->command(mxb->tea6420_1,TEA6420_SWITCH, &TEA6420_line[i][0]);
-		mxb->tea6420_2->driver->command(mxb->tea6420_2,TEA6420_SWITCH, &TEA6420_line[i][1]);
+		DEB_EE(("MXB_S_AUDIO_LINE: i:%d.\n", i));
+		mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH, &TEA6420_line[i][0]);
+		mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH, &TEA6420_line[i][1]);
 
 		return 0;
 	}
-	case VIDIOC_G_AUDIO:
-	{
-		struct v4l2_audio *a = arg;
+	default:
+/*
+		DEB2(printk("does not handle this ioctl.\n"));
+*/
+		return -ENOIOCTLCMD;
+	}
+	return 0;
+}
 
-		if (a->index < 0 || a->index > MXB_INPUTS) {
-			DEB_D(("VIDIOC_G_AUDIO %d out of range.\n", a->index));
-			return -EINVAL;
-		}
+static struct saa7146_ext_vv vv_data;
+
+/* this function only gets called when the probing was successful */
+static int mxb_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
+{
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
-		DEB_EE(("VIDIOC_G_AUDIO %d.\n", a->index));
-		memcpy(a, &mxb_audios[video_audio_connect[mxb->cur_input]], sizeof(struct v4l2_audio));
+	DEB_EE(("dev:%p\n", dev));
 
-		return 0;
-	}
-	case VIDIOC_S_AUDIO:
-	{
-		struct v4l2_audio *a = arg;
+	/* checking for i2c-devices can be omitted here, because we
+	   already did this in "mxb_vl42_probe" */
 
-		DEB_D(("VIDIOC_S_AUDIO %d.\n", a->index));
-		return 0;
-	}
+	saa7146_vv_init(dev, &vv_data);
+	vv_data.ops.vidioc_queryctrl = vidioc_queryctrl;
+	vv_data.ops.vidioc_g_ctrl = vidioc_g_ctrl;
+	vv_data.ops.vidioc_s_ctrl = vidioc_s_ctrl;
+	vv_data.ops.vidioc_enum_input = vidioc_enum_input;
+	vv_data.ops.vidioc_g_input = vidioc_g_input;
+	vv_data.ops.vidioc_s_input = vidioc_s_input;
+	vv_data.ops.vidioc_g_tuner = vidioc_g_tuner;
+	vv_data.ops.vidioc_s_tuner = vidioc_s_tuner;
+	vv_data.ops.vidioc_g_frequency = vidioc_g_frequency;
+	vv_data.ops.vidioc_s_frequency = vidioc_s_frequency;
+	vv_data.ops.vidioc_g_audio = vidioc_g_audio;
+	vv_data.ops.vidioc_s_audio = vidioc_s_audio;
 #ifdef CONFIG_VIDEO_ADV_DEBUG
-	case VIDIOC_DBG_S_REGISTER:
-	case VIDIOC_DBG_G_REGISTER:
-		i2c_clients_command(&mxb->i2c_adapter, cmd, arg);
-		return 0;
+	vv_data.ops.vidioc_g_register = vidioc_g_register;
+	vv_data.ops.vidioc_s_register = vidioc_s_register;
 #endif
-	default:
-/*
-		DEB2(printk("does not handle this ioctl.\n"));
-*/
-		return -ENOIOCTLCMD;
+	vv_data.ops.vidioc_default = vidioc_default;
+	if (saa7146_register_device(&mxb->video_dev, dev, "mxb", VFL_TYPE_GRABBER)) {
+		ERR(("cannot register capture v4l2 device. skipping.\n"));
+		return -1;
+	}
+
+	/* initialization stuff (vbi) (only for revision > 0 and for extensions which want it)*/
+	if (MXB_BOARD_CAN_DO_VBI(dev)) {
+		if (saa7146_register_device(&mxb->vbi_dev, dev, "mxb", VFL_TYPE_VBI)) {
+			ERR(("cannot register vbi v4l2 device. skipping.\n"));
+		}
 	}
+
+	i2c_use_client(mxb->tea6420_1);
+	i2c_use_client(mxb->tea6420_2);
+	i2c_use_client(mxb->tea6415c);
+	i2c_use_client(mxb->tda9840);
+	i2c_use_client(mxb->saa7111a);
+	i2c_use_client(mxb->tuner);
+
+	printk("mxb: found Multimedia eXtension Board #%d.\n", mxb_num);
+
+	mxb_num++;
+	mxb_init_done(dev);
+	return 0;
+}
+
+static int mxb_detach(struct saa7146_dev *dev)
+{
+	struct mxb *mxb = (struct mxb *)dev->ext_priv;
+
+	DEB_EE(("dev:%p\n", dev));
+
+	i2c_release_client(mxb->tea6420_1);
+	i2c_release_client(mxb->tea6420_2);
+	i2c_release_client(mxb->tea6415c);
+	i2c_release_client(mxb->tda9840);
+	i2c_release_client(mxb->saa7111a);
+	i2c_release_client(mxb->tuner);
+
+	saa7146_unregister_device(&mxb->video_dev,dev);
+	if (MXB_BOARD_CAN_DO_VBI(dev))
+		saa7146_unregister_device(&mxb->vbi_dev, dev);
+	saa7146_vv_release(dev);
+
+	mxb_num--;
+
+	i2c_del_adapter(&mxb->i2c_adapter);
+	kfree(mxb);
+
 	return 0;
 }
 
@@ -885,8 +908,6 @@ static struct saa7146_ext_vv vv_data = {
 	.stds		= &standard[0],
 	.num_stds	= sizeof(standard)/sizeof(struct saa7146_standard),
 	.std_callback	= &std_callback,
-	.ioctls		= &ioctls[0],
-	.ioctl		= mxb_ioctl,
 };
 
 static struct saa7146_extension extension = {
diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h
index c8d0b23fde29..eed5fccc83f3 100644
--- a/include/media/saa7146_vv.h
+++ b/include/media/saa7146_vv.h
@@ -150,16 +150,6 @@ struct saa7146_vv
 	unsigned int resources;	/* resource management for device */
 };
 
-#define SAA7146_EXCLUSIVE	0x1
-#define SAA7146_BEFORE		0x2
-#define SAA7146_AFTER		0x4
-
-struct saa7146_extension_ioctls
-{
-	unsigned int	cmd;
-	int		flags;
-};
-
 /* flags */
 #define SAA7146_USE_PORT_B_FOR_VBI	0x2     /* use input port b for vbi hardware bug workaround */
 
@@ -176,8 +166,10 @@ struct saa7146_ext_vv
 	int num_stds;
 	int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
 
-	struct saa7146_extension_ioctls *ioctls;
-	long (*ioctl)(struct saa7146_fh *, unsigned int cmd, void *arg);
+	/* the extension can override this */
+	struct v4l2_ioctl_ops ops;
+	/* pointer to the saa7146 core ops */
+	const struct v4l2_ioctl_ops *core_ops;
 
 	struct v4l2_file_operations vbi_fops;
 };
@@ -213,6 +205,7 @@ void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sy
 void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
 
 /* from saa7146_video.c */
+extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
 extern struct saa7146_use_ops saa7146_video_uops;
 int saa7146_start_preview(struct saa7146_fh *fh);
 int saa7146_stop_preview(struct saa7146_fh *fh);
-- 
cgit v1.2.3


From 0d82fe801d7c6d8cb8987e66b570f6decde9e235 Mon Sep 17 00:00:00 2001
From: Andy Walls <awalls@radix.net>
Date: Thu, 1 Jan 2009 19:02:31 -0300
Subject: V4L/DVB (10276): cx18, cx2341x, ivtv: Add AC-3 audio encoding control
 to cx18

Initial addition of controls to set AC-3 audio encoding for the CX23418 - it
does not work yet due to firmware or cx18 driver issues.  This change affects
the common cx2341x and ivtv modules due to shared structures and
common functions.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/cx18/cx18-driver.c  |  3 +-
 drivers/media/video/cx18/cx18-driver.h  |  2 +-
 drivers/media/video/cx18/cx18-fileops.c |  8 ++--
 drivers/media/video/cx2341x.c           | 73 ++++++++++++++++++++++++++++++---
 drivers/media/video/ivtv/ivtv-driver.h  |  2 +-
 drivers/media/video/ivtv/ivtv-fileops.c |  8 ++--
 include/media/cx2341x.h                 |  7 +++-
 7 files changed, 84 insertions(+), 19 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index f50cf2167adc..f9df3cc5aa3d 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -587,7 +587,8 @@ static int __devinit cx18_init_struct1(struct cx18 *cx)
 		(cx->params.video_temporal_filter_mode << 1) |
 		(cx->params.video_median_filter_type << 2);
 	cx->params.port = CX2341X_PORT_MEMORY;
-	cx->params.capabilities = CX2341X_CAP_HAS_TS;
+	cx->params.capabilities = CX2341X_CAP_HAS_TS   | CX2341X_CAP_HAS_AC3 |
+				  CX2341X_CAP_HAS_LPCM;
 	init_waitqueue_head(&cx->cap_w);
 	init_waitqueue_head(&cx->mb_apu_waitq);
 	init_waitqueue_head(&cx->mb_cpu_waitq);
diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h
index 0d2edebc39b4..36809dd3d848 100644
--- a/drivers/media/video/cx18/cx18-driver.h
+++ b/drivers/media/video/cx18/cx18-driver.h
@@ -413,7 +413,7 @@ struct cx18 {
 
 	/* dualwatch */
 	unsigned long dualwatch_jiffies;
-	u16 dualwatch_stereo_mode;
+	u32 dualwatch_stereo_mode;
 
 	/* Digitizer type */
 	int digitizer;		/* 0x00EF = saa7114 0x00FO = saa7115 0x0106 = mic */
diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c
index 055f6e004b2d..863d29db85eb 100644
--- a/drivers/media/video/cx18/cx18-fileops.c
+++ b/drivers/media/video/cx18/cx18-fileops.c
@@ -128,10 +128,10 @@ static void cx18_release_stream(struct cx18_stream *s)
 static void cx18_dualwatch(struct cx18 *cx)
 {
 	struct v4l2_tuner vt;
-	u16 new_bitmap;
-	u16 new_stereo_mode;
-	const u16 stereo_mask = 0x0300;
-	const u16 dual = 0x0200;
+	u32 new_bitmap;
+	u32 new_stereo_mode;
+	const u32 stereo_mask = 0x0300;
+	const u32 dual = 0x0200;
 	u32 h;
 
 	new_stereo_mode = cx->params.audio_properties & stereo_mask;
diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c
index cbbe47fb87b7..0acfacfa9436 100644
--- a/drivers/media/video/cx2341x.c
+++ b/drivers/media/video/cx2341x.c
@@ -1,5 +1,5 @@
 /*
- * cx2341x - generic code for cx23415/6 based devices
+ * cx2341x - generic code for cx23415/6/8 based devices
  *
  * Copyright (C) 2006 Hans Verkuil <hverkuil@xs4all.nl>
  *
@@ -30,7 +30,7 @@
 #include <media/cx2341x.h>
 #include <media/v4l2-common.h>
 
-MODULE_DESCRIPTION("cx23415/6 driver");
+MODULE_DESCRIPTION("cx23415/6/8 driver");
 MODULE_AUTHOR("Hans Verkuil");
 MODULE_LICENSE("GPL");
 
@@ -45,6 +45,7 @@ const u32 cx2341x_mpeg_ctrls[] = {
 	V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
 	V4L2_CID_MPEG_AUDIO_ENCODING,
 	V4L2_CID_MPEG_AUDIO_L2_BITRATE,
+	V4L2_CID_MPEG_AUDIO_AC3_BITRATE,
 	V4L2_CID_MPEG_AUDIO_MODE,
 	V4L2_CID_MPEG_AUDIO_MODE_EXTENSION,
 	V4L2_CID_MPEG_AUDIO_EMPHASIS,
@@ -94,6 +95,7 @@ static const struct cx2341x_mpeg_params default_params = {
 	.audio_sampling_freq = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000,
 	.audio_encoding = V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
 	.audio_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_224K,
+	.audio_ac3_bitrate = V4L2_MPEG_AUDIO_AC3_BITRATE_224K,
 	.audio_mode = V4L2_MPEG_AUDIO_MODE_STEREO,
 	.audio_mode_extension = V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4,
 	.audio_emphasis = V4L2_MPEG_AUDIO_EMPHASIS_NONE,
@@ -148,6 +150,9 @@ static int cx2341x_get_ctrl(const struct cx2341x_mpeg_params *params,
 	case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
 		ctrl->value = params->audio_l2_bitrate;
 		break;
+	case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
+		ctrl->value = params->audio_ac3_bitrate;
+		break;
 	case V4L2_CID_MPEG_AUDIO_MODE:
 		ctrl->value = params->audio_mode;
 		break;
@@ -256,6 +261,12 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params, int busy,
 		params->audio_sampling_freq = ctrl->value;
 		break;
 	case V4L2_CID_MPEG_AUDIO_ENCODING:
+		if (busy)
+			return -EBUSY;
+		if (params->capabilities & CX2341X_CAP_HAS_AC3 &&
+		    ctrl->value != V4L2_MPEG_AUDIO_ENCODING_LAYER_2 &&
+		    ctrl->value != V4L2_MPEG_AUDIO_ENCODING_AC3)
+			return -EINVAL;
 		params->audio_encoding = ctrl->value;
 		break;
 	case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
@@ -263,6 +274,11 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params, int busy,
 			return -EBUSY;
 		params->audio_l2_bitrate = ctrl->value;
 		break;
+	case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
+		if (busy)
+			return -EBUSY;
+		params->audio_ac3_bitrate = ctrl->value;
+		break;
 	case V4L2_CID_MPEG_AUDIO_MODE:
 		params->audio_mode = ctrl->value;
 		break;
@@ -482,6 +498,12 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 
 	switch (qctrl->id) {
 	case V4L2_CID_MPEG_AUDIO_ENCODING:
+		if (params->capabilities & CX2341X_CAP_HAS_AC3)
+			return v4l2_ctrl_query_fill(qctrl,
+					V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
+					V4L2_MPEG_AUDIO_ENCODING_AC3, 1,
+					default_params.audio_encoding);
+
 		return v4l2_ctrl_query_fill(qctrl,
 				V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
 				V4L2_MPEG_AUDIO_ENCODING_LAYER_2, 1,
@@ -497,6 +519,12 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 	case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
 		return -EINVAL;
 
+	case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
+		return v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_AUDIO_AC3_BITRATE_48K,
+				V4L2_MPEG_AUDIO_AC3_BITRATE_448K, 1,
+				default_params.audio_ac3_bitrate);
+
 	case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
 		err = v4l2_ctrl_query_fill_std(qctrl);
 		if (err == 0 &&
@@ -671,6 +699,15 @@ const char **cx2341x_ctrl_get_menu(const struct cx2341x_mpeg_params *p, u32 id)
 		NULL
 	};
 
+	static const char *mpeg_audio_encoding_l2_ac3[] = {
+		"",
+		"MPEG-1/2 Layer II",
+		"",
+		"",
+		"AC-3",
+		NULL
+	};
+
 	static const char *cx2341x_video_spatial_filter_mode_menu[] = {
 		"Manual",
 		"Auto",
@@ -711,6 +748,9 @@ const char **cx2341x_ctrl_get_menu(const struct cx2341x_mpeg_params *p, u32 id)
 	case V4L2_CID_MPEG_STREAM_TYPE:
 		return (p->capabilities & CX2341X_CAP_HAS_TS) ?
 			mpeg_stream_type_with_ts : mpeg_stream_type_without_ts;
+	case V4L2_CID_MPEG_AUDIO_ENCODING:
+		return (p->capabilities & CX2341X_CAP_HAS_AC3) ?
+			mpeg_audio_encoding_l2_ac3 : v4l2_ctrl_get_menu(id);
 	case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
 	case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
 		return NULL;
@@ -730,16 +770,34 @@ const char **cx2341x_ctrl_get_menu(const struct cx2341x_mpeg_params *p, u32 id)
 }
 EXPORT_SYMBOL(cx2341x_ctrl_get_menu);
 
+/* definitions for audio properties bits 29-28 */
+#define CX2341X_AUDIO_ENCDING_METHOD_MPEG	0
+#define CX2341X_AUDIO_ENCDING_METHOD_AC3	1
+#define CX2341X_AUDIO_ENCDING_METHOD_LPCM	2
+
 static void cx2341x_calc_audio_properties(struct cx2341x_mpeg_params *params)
 {
-	params->audio_properties = (params->audio_sampling_freq << 0) |
-		((3 - params->audio_encoding) << 2) |
-		((1 + params->audio_l2_bitrate) << 4) |
+	params->audio_properties =
+		(params->audio_sampling_freq << 0) |
 		(params->audio_mode << 8) |
 		(params->audio_mode_extension << 10) |
 		(((params->audio_emphasis == V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17)
 		  ? 3 : params->audio_emphasis) << 12) |
 		(params->audio_crc << 14);
+
+	if ((params->capabilities & CX2341X_CAP_HAS_AC3) &&
+	    params->audio_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) {
+		params->audio_properties |=
+			/* Not sure if this MPEG Layer II setting is required */
+			((3 - V4L2_MPEG_AUDIO_ENCODING_LAYER_2) << 2) |
+			(params->audio_ac3_bitrate << 4) |
+			(CX2341X_AUDIO_ENCDING_METHOD_AC3 << 28);
+	} else {
+		/* Assuming MPEG Layer II */
+		params->audio_properties |=
+			((3 - params->audio_encoding) << 2) |
+			((1 + params->audio_l2_bitrate) << 4);
+	}
 }
 
 int cx2341x_ext_ctrls(struct cx2341x_mpeg_params *params, int busy,
@@ -1022,7 +1080,10 @@ void cx2341x_log_status(const struct cx2341x_mpeg_params *p, const char *prefix)
 		prefix,
 		cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ),
 		cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_ENCODING),
-		cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_L2_BITRATE),
+		cx2341x_menu_item(p,
+			   p->audio_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3
+					      ? V4L2_CID_MPEG_AUDIO_AC3_BITRATE
+					      : V4L2_CID_MPEG_AUDIO_L2_BITRATE),
 		cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_MODE),
 		p->audio_mute ? " (muted)" : "");
 	if (p->audio_mode == V4L2_MPEG_AUDIO_MODE_JOINT_STEREO)
diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h
index ce8d9b74357e..94f7f44d5989 100644
--- a/drivers/media/video/ivtv/ivtv-driver.h
+++ b/drivers/media/video/ivtv/ivtv-driver.h
@@ -696,7 +696,7 @@ struct ivtv {
 	u64 vbi_data_inserted;          /* number of VBI bytes inserted into the MPEG stream */
 	u32 last_dec_timing[3];         /* cache last retrieved pts/scr/frame values */
 	unsigned long dualwatch_jiffies;/* jiffies value of the previous dualwatch check */
-	u16 dualwatch_stereo_mode;      /* current detected dualwatch stereo mode */
+	u32 dualwatch_stereo_mode;      /* current detected dualwatch stereo mode */
 
 
 	/* VBI state info */
diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c
index d594bc29f07f..617667d1ceba 100644
--- a/drivers/media/video/ivtv/ivtv-fileops.c
+++ b/drivers/media/video/ivtv/ivtv-fileops.c
@@ -148,10 +148,10 @@ void ivtv_release_stream(struct ivtv_stream *s)
 static void ivtv_dualwatch(struct ivtv *itv)
 {
 	struct v4l2_tuner vt;
-	u16 new_bitmap;
-	u16 new_stereo_mode;
-	const u16 stereo_mask = 0x0300;
-	const u16 dual = 0x0200;
+	u32 new_bitmap;
+	u32 new_stereo_mode;
+	const u32 stereo_mask = 0x0300;
+	const u32 dual = 0x0200;
 
 	new_stereo_mode = itv->params.audio_properties & stereo_mask;
 	memset(&vt, 0, sizeof(vt));
diff --git a/include/media/cx2341x.h b/include/media/cx2341x.h
index 9ec4d5889ef5..2601bc71c51d 100644
--- a/include/media/cx2341x.h
+++ b/include/media/cx2341x.h
@@ -1,5 +1,5 @@
 /*
-    cx23415/6 header containing common defines.
+    cx23415/6/8 header containing common defines.
 
     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
@@ -28,6 +28,8 @@ enum cx2341x_port {
 enum cx2341x_cap {
 	CX2341X_CAP_HAS_SLICED_VBI = 1 << 0,
 	CX2341X_CAP_HAS_TS 	   = 1 << 1,
+	CX2341X_CAP_HAS_AC3 	   = 1 << 2,
+	CX2341X_CAP_HAS_LPCM	   = 1 << 3,
 };
 
 struct cx2341x_mpeg_params {
@@ -47,11 +49,12 @@ struct cx2341x_mpeg_params {
 	enum v4l2_mpeg_audio_sampling_freq audio_sampling_freq;
 	enum v4l2_mpeg_audio_encoding audio_encoding;
 	enum v4l2_mpeg_audio_l2_bitrate audio_l2_bitrate;
+	enum v4l2_mpeg_audio_ac3_bitrate audio_ac3_bitrate;
 	enum v4l2_mpeg_audio_mode audio_mode;
 	enum v4l2_mpeg_audio_mode_extension audio_mode_extension;
 	enum v4l2_mpeg_audio_emphasis audio_emphasis;
 	enum v4l2_mpeg_audio_crc audio_crc;
-	u16 audio_properties;
+	u32 audio_properties;
 	u16 audio_mute;
 
 	/* video */
-- 
cgit v1.2.3


From 31230c5f6f3a3e549f16857b7af45f5e08ca6f30 Mon Sep 17 00:00:00 2001
From: Andy Walls <awalls@radix.net>
Date: Sat, 3 Jan 2009 14:21:30 -0300
Subject: V4L/DVB (10277): cx18, cx2341x: Fix bugs in cx18 AC3 control and
 comply with V4L2 spec

Fix bugs in the cx18 AC3 control implementation that would have affected
ivtv and other drivers via the cx2341x module.  Bring AC3 controls
behavior into comliance with V4L2 specification.  Thanks to Hans Verkuil
for reviewing the previous patch and pointing out the problems.

Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/cx18/cx18-driver.c |  3 +--
 drivers/media/video/cx2341x.c          | 46 ++++++++++++++++++++++++++--------
 include/media/cx2341x.h                |  1 -
 3 files changed, 36 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index f9df3cc5aa3d..7e455fdcf774 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -587,8 +587,7 @@ static int __devinit cx18_init_struct1(struct cx18 *cx)
 		(cx->params.video_temporal_filter_mode << 1) |
 		(cx->params.video_median_filter_type << 2);
 	cx->params.port = CX2341X_PORT_MEMORY;
-	cx->params.capabilities = CX2341X_CAP_HAS_TS   | CX2341X_CAP_HAS_AC3 |
-				  CX2341X_CAP_HAS_LPCM;
+	cx->params.capabilities = CX2341X_CAP_HAS_TS | CX2341X_CAP_HAS_AC3;
 	init_waitqueue_head(&cx->cap_w);
 	init_waitqueue_head(&cx->mb_apu_waitq);
 	init_waitqueue_head(&cx->mb_cpu_waitq);
diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c
index 0acfacfa9436..6f4821616f75 100644
--- a/drivers/media/video/cx2341x.c
+++ b/drivers/media/video/cx2341x.c
@@ -263,10 +263,10 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params, int busy,
 	case V4L2_CID_MPEG_AUDIO_ENCODING:
 		if (busy)
 			return -EBUSY;
-		if (params->capabilities & CX2341X_CAP_HAS_AC3 &&
-		    ctrl->value != V4L2_MPEG_AUDIO_ENCODING_LAYER_2 &&
-		    ctrl->value != V4L2_MPEG_AUDIO_ENCODING_AC3)
-			return -EINVAL;
+		if (params->capabilities & CX2341X_CAP_HAS_AC3)
+			if (ctrl->value != V4L2_MPEG_AUDIO_ENCODING_LAYER_2 &&
+			    ctrl->value != V4L2_MPEG_AUDIO_ENCODING_AC3)
+				return -ERANGE;
 		params->audio_encoding = ctrl->value;
 		break;
 	case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
@@ -277,6 +277,8 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params, int busy,
 	case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
 		if (busy)
 			return -EBUSY;
+		if (!(params->capabilities & CX2341X_CAP_HAS_AC3))
+			return -EINVAL;
 		params->audio_ac3_bitrate = ctrl->value;
 		break;
 	case V4L2_CID_MPEG_AUDIO_MODE:
@@ -498,11 +500,18 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 
 	switch (qctrl->id) {
 	case V4L2_CID_MPEG_AUDIO_ENCODING:
-		if (params->capabilities & CX2341X_CAP_HAS_AC3)
+		if (params->capabilities & CX2341X_CAP_HAS_AC3) {
+			/*
+			 * The state of L2 & AC3 bitrate controls can change
+			 * when this control changes, but v4l2_ctrl_query_fill()
+			 * already sets V4L2_CTRL_FLAG_UPDATE for
+			 * V4L2_CID_MPEG_AUDIO_ENCODING, so we don't here.
+			 */
 			return v4l2_ctrl_query_fill(qctrl,
 					V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
 					V4L2_MPEG_AUDIO_ENCODING_AC3, 1,
 					default_params.audio_encoding);
+		}
 
 		return v4l2_ctrl_query_fill(qctrl,
 				V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
@@ -510,20 +519,35 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 				default_params.audio_encoding);
 
 	case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
-		return v4l2_ctrl_query_fill(qctrl,
+		err = v4l2_ctrl_query_fill(qctrl,
 				V4L2_MPEG_AUDIO_L2_BITRATE_192K,
 				V4L2_MPEG_AUDIO_L2_BITRATE_384K, 1,
 				default_params.audio_l2_bitrate);
+		if (err)
+			return err;
+		if (params->capabilities & CX2341X_CAP_HAS_AC3 &&
+		    params->audio_encoding != V4L2_MPEG_AUDIO_ENCODING_LAYER_2)
+			qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
+		return 0;
 
 	case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
 	case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
 		return -EINVAL;
 
 	case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
-		return v4l2_ctrl_query_fill(qctrl,
+		err = v4l2_ctrl_query_fill(qctrl,
 				V4L2_MPEG_AUDIO_AC3_BITRATE_48K,
 				V4L2_MPEG_AUDIO_AC3_BITRATE_448K, 1,
 				default_params.audio_ac3_bitrate);
+		if (err)
+			return err;
+		if (params->capabilities & CX2341X_CAP_HAS_AC3) {
+			if (params->audio_encoding !=
+						   V4L2_MPEG_AUDIO_ENCODING_AC3)
+				qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
+		} else
+			qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
+		return 0;
 
 	case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
 		err = v4l2_ctrl_query_fill_std(qctrl);
@@ -771,9 +795,9 @@ const char **cx2341x_ctrl_get_menu(const struct cx2341x_mpeg_params *p, u32 id)
 EXPORT_SYMBOL(cx2341x_ctrl_get_menu);
 
 /* definitions for audio properties bits 29-28 */
-#define CX2341X_AUDIO_ENCDING_METHOD_MPEG	0
-#define CX2341X_AUDIO_ENCDING_METHOD_AC3	1
-#define CX2341X_AUDIO_ENCDING_METHOD_LPCM	2
+#define CX2341X_AUDIO_ENCODING_METHOD_MPEG	0
+#define CX2341X_AUDIO_ENCODING_METHOD_AC3	1
+#define CX2341X_AUDIO_ENCODING_METHOD_LPCM	2
 
 static void cx2341x_calc_audio_properties(struct cx2341x_mpeg_params *params)
 {
@@ -791,7 +815,7 @@ static void cx2341x_calc_audio_properties(struct cx2341x_mpeg_params *params)
 			/* Not sure if this MPEG Layer II setting is required */
 			((3 - V4L2_MPEG_AUDIO_ENCODING_LAYER_2) << 2) |
 			(params->audio_ac3_bitrate << 4) |
-			(CX2341X_AUDIO_ENCDING_METHOD_AC3 << 28);
+			(CX2341X_AUDIO_ENCODING_METHOD_AC3 << 28);
 	} else {
 		/* Assuming MPEG Layer II */
 		params->audio_properties |=
diff --git a/include/media/cx2341x.h b/include/media/cx2341x.h
index 2601bc71c51d..9ebe8558b9b6 100644
--- a/include/media/cx2341x.h
+++ b/include/media/cx2341x.h
@@ -29,7 +29,6 @@ enum cx2341x_cap {
 	CX2341X_CAP_HAS_SLICED_VBI = 1 << 0,
 	CX2341X_CAP_HAS_TS 	   = 1 << 1,
 	CX2341X_CAP_HAS_AC3 	   = 1 << 2,
-	CX2341X_CAP_HAS_LPCM	   = 1 << 3,
 };
 
 struct cx2341x_mpeg_params {
-- 
cgit v1.2.3


From 553d0d839b93550780d1b46e6bcd01a3c5c5883e Mon Sep 17 00:00:00 2001
From: Kyle Guinn <elyk03@gmail.com>
Date: Fri, 16 Jan 2009 05:28:38 -0300
Subject: V4L/DVB (10365): Add Mars-Semi MR97310A format

The MR97310A is a dual-mode webcam controller that provides compressed BGGR
Bayer frames.  The decompression algorithm for still images is the same as for
video, and is currently implemented in libgphoto2.

Signed-off-by: Kyle Guinn <elyk03@gmail.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/linux/videodev2.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 5571dbe1c0ad..74aea975b305 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -344,6 +344,7 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_SPCA508  v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
 #define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
 #define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
+#define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
 #define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
 #define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16  YVU 4:2:2     */
 
-- 
cgit v1.2.3


From ef77a26be1883366bb78741d1808e5c86a14ec76 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 7 Feb 2009 07:23:40 -0300
Subject: V4L/DVB (10496): saa7146: implement v4l2_device support.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/common/saa7146_core.c | 17 ++++++++++-------
 include/media/saa7146.h             |  3 +++
 2 files changed, 13 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c
index d599d360da3f..961ad16e1d6f 100644
--- a/drivers/media/common/saa7146_core.c
+++ b/drivers/media/common/saa7146_core.c
@@ -363,13 +363,16 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
 		ERR(("out of memory.\n"));
 		goto out;
 	}
+	err = v4l2_device_register(&pci->dev, &dev->v4l2_dev);
+	if (err)
+		goto err_free;
 
 	DEB_EE(("pci:%p\n",pci));
 
 	err = pci_enable_device(pci);
 	if (err < 0) {
 		ERR(("pci_enable_device() failed.\n"));
-		goto err_free;
+		goto err_unreg;
 	}
 
 	/* enable bus-mastering */
@@ -452,8 +455,6 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
 	INFO(("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x).\n", dev->mem, dev->revision, pci->irq, pci->subsystem_vendor, pci->subsystem_device));
 	dev->ext = ext;
 
-	pci_set_drvdata(pci, dev);
-
 	mutex_init(&dev->lock);
 	spin_lock_init(&dev->int_slock);
 	spin_lock_init(&dev->slock);
@@ -477,7 +478,7 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
 
 	if (ext->attach(dev, pci_ext)) {
 		DEB_D(("ext->attach() failed for %p. skipping device.\n",dev));
-		goto err_unprobe;
+		goto err_free_i2c;
 	}
 
 	INIT_LIST_HEAD(&dev->item);
@@ -488,8 +489,6 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
 out:
 	return err;
 
-err_unprobe:
-	pci_set_drvdata(pci, NULL);
 err_free_i2c:
 	pci_free_consistent(pci, SAA7146_RPS_MEM, dev->d_i2c.cpu_addr,
 			    dev->d_i2c.dma_handle);
@@ -507,6 +506,8 @@ err_release:
 	pci_release_region(pci, 0);
 err_disable:
 	pci_disable_device(pci);
+err_unreg:
+	v4l2_device_unregister(&dev->v4l2_dev);
 err_free:
 	kfree(dev);
 	goto out;
@@ -514,7 +515,8 @@ err_free:
 
 static void saa7146_remove_one(struct pci_dev *pdev)
 {
-	struct saa7146_dev* dev = pci_get_drvdata(pdev);
+	struct v4l2_device *v4l2_dev = pci_get_drvdata(pdev);
+	struct saa7146_dev *dev = container_of(v4l2_dev, struct saa7146_dev, v4l2_dev);
 	struct {
 		void *addr;
 		dma_addr_t dma;
@@ -528,6 +530,7 @@ static void saa7146_remove_one(struct pci_dev *pdev)
 	DEB_EE(("dev:%p\n",dev));
 
 	dev->ext->detach(dev);
+	v4l2_device_unregister(&dev->v4l2_dev);
 
 	/* shut down all video dma transfers */
 	saa7146_write(dev, MC1, 0x00ff0000);
diff --git a/include/media/saa7146.h b/include/media/saa7146.h
index c5a6e22a4b37..b9dfeeb26fae 100644
--- a/include/media/saa7146.h
+++ b/include/media/saa7146.h
@@ -13,6 +13,7 @@
 #include <linux/stringify.h>
 #include <linux/mutex.h>
 #include <linux/scatterlist.h>
+#include <media/v4l2-device.h>
 
 #include <linux/vmalloc.h>	/* for vmalloc() */
 #include <linux/mm.h>		/* for vmalloc_to_page() */
@@ -110,6 +111,8 @@ struct saa7146_dev
 
 	struct list_head		item;
 
+	struct v4l2_device 		v4l2_dev;
+
 	/* different device locks */
 	spinlock_t			slock;
 	struct mutex			lock;
-- 
cgit v1.2.3


From 45d809431daaa3ab01f877388d09676d05b469be Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 7 Feb 2009 07:38:12 -0300
Subject: V4L/DVB (10497): saa7146: i2c adapdata now points to v4l2_device.

Prepare for converting to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/common/saa7146_core.c | 2 +-
 drivers/media/common/saa7146_i2c.c  | 5 +++--
 include/media/saa7146.h             | 5 +++++
 3 files changed, 9 insertions(+), 3 deletions(-)

(limited to 'include')

diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c
index 961ad16e1d6f..a123844eb656 100644
--- a/drivers/media/common/saa7146_core.c
+++ b/drivers/media/common/saa7146_core.c
@@ -516,7 +516,7 @@ err_free:
 static void saa7146_remove_one(struct pci_dev *pdev)
 {
 	struct v4l2_device *v4l2_dev = pci_get_drvdata(pdev);
-	struct saa7146_dev *dev = container_of(v4l2_dev, struct saa7146_dev, v4l2_dev);
+	struct saa7146_dev *dev = to_saa7146_dev(v4l2_dev);
 	struct {
 		void *addr;
 		dma_addr_t dma;
diff --git a/drivers/media/common/saa7146_i2c.c b/drivers/media/common/saa7146_i2c.c
index c11da4d09cd0..1b64074a92da 100644
--- a/drivers/media/common/saa7146_i2c.c
+++ b/drivers/media/common/saa7146_i2c.c
@@ -390,7 +390,8 @@ out:
 /* utility functions */
 static int saa7146_i2c_xfer(struct i2c_adapter* adapter, struct i2c_msg *msg, int num)
 {
-	struct saa7146_dev* dev = i2c_get_adapdata(adapter);
+	struct v4l2_device *v4l2_dev = i2c_get_adapdata(adapter);
+	struct saa7146_dev *dev = to_saa7146_dev(v4l2_dev);
 
 	/* use helper function to transfer data */
 	return saa7146_i2c_transfer(dev, msg, num, adapter->retries);
@@ -419,7 +420,7 @@ int saa7146_i2c_adapter_prepare(struct saa7146_dev *dev, struct i2c_adapter *i2c
 
 	if( NULL != i2c_adapter ) {
 		BUG_ON(!i2c_adapter->class);
-		i2c_set_adapdata(i2c_adapter,dev);
+		i2c_set_adapdata(i2c_adapter, &dev->v4l2_dev);
 		i2c_adapter->dev.parent    = &dev->pci->dev;
 		i2c_adapter->algo	   = &saa7146_algo;
 		i2c_adapter->algo_data     = NULL;
diff --git a/include/media/saa7146.h b/include/media/saa7146.h
index b9dfeeb26fae..fff4235adae5 100644
--- a/include/media/saa7146.h
+++ b/include/media/saa7146.h
@@ -148,6 +148,11 @@ struct saa7146_dev
 	struct saa7146_dma		d_rps1;
 };
 
+static inline struct saa7146_dev *to_saa7146_dev(struct v4l2_device *v4l2_dev)
+{
+	return container_of(v4l2_dev, struct saa7146_dev, v4l2_dev);
+}
+
 /* from saa7146_i2c.c */
 int saa7146_i2c_adapter_prepare(struct saa7146_dev *dev, struct i2c_adapter *i2c_adapter, u32 bitrate);
 
-- 
cgit v1.2.3


From 1b8dac150a01e2312d8e3fedd6462a0ec34c96d0 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 7 Feb 2009 11:18:05 -0300
Subject: V4L/DVB (10499): saa7146: convert saa7146 and mxb in particular to
 v4l2_subdev.

Modified mxb to load the i2c modules through v4l2_subdev. So no more probing.
Modified tea6415c and tea6420 to use the standard routing ops to do the
routing, rather than using private commands. Dropped the private commands
from tda9840 (they were never used except during initialization of the
module).

Added saa7146 support for VIDIOC_DBG_G_CHIP_IDENT.

Converted saa5246a and saa5249 to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/common/saa7146_video.c |  25 +++-
 drivers/media/video/mxb.c            | 274 ++++++++++++++---------------------
 drivers/media/video/saa5246a.c       |  69 ++++++---
 drivers/media/video/saa5249.c        |  70 +++++----
 drivers/media/video/tda9840.c        |  81 ++---------
 drivers/media/video/tda9840.h        |  14 --
 drivers/media/video/tea6415c.c       |  52 +++----
 drivers/media/video/tea6415c.h       |  12 --
 drivers/media/video/tea6420.c        |  68 ++++-----
 drivers/media/video/tea6420.h        |  27 ++--
 include/media/v4l2-chip-ident.h      |  18 +++
 11 files changed, 315 insertions(+), 395 deletions(-)
 delete mode 100644 drivers/media/video/tda9840.h

(limited to 'include')

diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c
index 91b7a4def46c..a2a8847e6789 100644
--- a/drivers/media/common/saa7146_video.c
+++ b/drivers/media/common/saa7146_video.c
@@ -1,4 +1,5 @@
 #include <media/saa7146_vv.h>
+#include <media/v4l2-chip-ident.h>
 
 static int max_memory = 32;
 
@@ -209,6 +210,7 @@ static struct v4l2_queryctrl controls[] = {
 		.step		= 1,
 		.default_value	= 128,
 		.type		= V4L2_CTRL_TYPE_INTEGER,
+		.flags 		= V4L2_CTRL_FLAG_SLIDER,
 	},{
 		.id		= V4L2_CID_CONTRAST,
 		.name		= "Contrast",
@@ -217,6 +219,7 @@ static struct v4l2_queryctrl controls[] = {
 		.step		= 1,
 		.default_value	= 64,
 		.type		= V4L2_CTRL_TYPE_INTEGER,
+		.flags 		= V4L2_CTRL_FLAG_SLIDER,
 	},{
 		.id		= V4L2_CID_SATURATION,
 		.name		= "Saturation",
@@ -225,15 +228,16 @@ static struct v4l2_queryctrl controls[] = {
 		.step		= 1,
 		.default_value	= 64,
 		.type		= V4L2_CTRL_TYPE_INTEGER,
+		.flags 		= V4L2_CTRL_FLAG_SLIDER,
 	},{
 		.id		= V4L2_CID_VFLIP,
-		.name		= "Vertical flip",
+		.name		= "Vertical Flip",
 		.minimum	= 0,
 		.maximum	= 1,
 		.type		= V4L2_CTRL_TYPE_BOOLEAN,
 	},{
 		.id		= V4L2_CID_HFLIP,
-		.name		= "Horizontal flip",
+		.name		= "Horizontal Flip",
 		.minimum	= 0,
 		.maximum	= 1,
 		.type		= V4L2_CTRL_TYPE_BOOLEAN,
@@ -1112,6 +1116,22 @@ static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type ty
 	return err;
 }
 
+static int vidioc_g_chip_ident(struct file *file, void *__fh,
+		struct v4l2_dbg_chip_ident *chip)
+{
+	struct saa7146_fh *fh = __fh;
+	struct saa7146_dev *dev = fh->dev;
+
+	chip->ident = V4L2_IDENT_NONE;
+	chip->revision = 0;
+	if (v4l2_chip_match_host(&chip->match)) {
+		chip->ident = V4L2_IDENT_SAA7146;
+		return 0;
+	}
+	return v4l2_device_call_until_err(&dev->v4l2_dev, 0,
+			core, g_chip_ident, chip);
+}
+
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
 static int vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *mbuf)
 {
@@ -1152,6 +1172,7 @@ const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = {
 	.vidioc_try_fmt_vid_overlay  = vidioc_try_fmt_vid_overlay,
 	.vidioc_s_fmt_vid_overlay    = vidioc_s_fmt_vid_overlay,
 	.vidioc_g_fmt_vbi_cap        = vidioc_g_fmt_vbi_cap,
+	.vidioc_g_chip_ident         = vidioc_g_chip_ident,
 
 	.vidioc_overlay 	     = vidioc_overlay,
 	.vidioc_g_fbuf  	     = vidioc_g_fbuf,
diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index 8ecda8dfbd04..996011f2aba5 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -32,9 +32,14 @@
 #include "mxb.h"
 #include "tea6415c.h"
 #include "tea6420.h"
-#include "tda9840.h"
 
-#define I2C_SAA7111 0x24
+#define	I2C_SAA5246A  0x11
+#define I2C_SAA7111A  0x24
+#define	I2C_TDA9840   0x42
+#define	I2C_TEA6415C  0x43
+#define	I2C_TEA6420_1 0x4c
+#define	I2C_TEA6420_2 0x4d
+#define	I2C_TUNER     0x60
 
 #define MXB_BOARD_CAN_DO_VBI(dev)   (dev->revision != 0)
 
@@ -79,31 +84,29 @@ static struct {
 static int video_audio_connect[MXB_INPUTS] =
 	{ 0, 1, 3, 3 };
 
-/* these are the necessary input-output-pins for bringing one audio source
-(see above) to the CD-output */
-static struct tea6420_multiplex TEA6420_cd[MXB_AUDIOS+1][2] =
-		{
-		{{1,1,0},{1,1,0}},	/* Tuner */
-		{{5,1,0},{6,1,0}},	/* AUX 1 */
-		{{4,1,0},{6,1,0}},	/* AUX 2 */
-		{{3,1,0},{6,1,0}},	/* AUX 3 */
-		{{1,1,0},{3,1,0}},	/* Radio */
-		{{1,1,0},{2,1,0}},	/* CD-Rom */
-		{{6,1,0},{6,1,0}}	/* Mute */
-		};
-
-/* these are the necessary input-output-pins for bringing one audio source
-(see above) to the line-output */
-static struct tea6420_multiplex TEA6420_line[MXB_AUDIOS+1][2] =
-		{
-		{{2,3,0},{1,2,0}},
-		{{5,3,0},{6,2,0}},
-		{{4,3,0},{6,2,0}},
-		{{3,3,0},{6,2,0}},
-		{{2,3,0},{3,2,0}},
-		{{2,3,0},{2,2,0}},
-		{{6,3,0},{6,2,0}}	/* Mute */
-		};
+/* These are the necessary input-output-pins for bringing one audio source
+   (see above) to the CD-output. Note that gain is set to 0 in this table. */
+static struct v4l2_routing TEA6420_cd[MXB_AUDIOS + 1][2] = {
+	{ { 1, 1 }, { 1, 1 } },	/* Tuner */
+	{ { 5, 1 }, { 6, 1 } },	/* AUX 1 */
+	{ { 4, 1 }, { 6, 1 } },	/* AUX 2 */
+	{ { 3, 1 }, { 6, 1 } },	/* AUX 3 */
+	{ { 1, 1 }, { 3, 1 } },	/* Radio */
+	{ { 1, 1 }, { 2, 1 } },	/* CD-Rom */
+	{ { 6, 1 }, { 6, 1 } }	/* Mute */
+};
+
+/* These are the necessary input-output-pins for bringing one audio source
+   (see above) to the line-output. Note that gain is set to 0 in this table. */
+static struct v4l2_routing TEA6420_line[MXB_AUDIOS + 1][2] = {
+	{ { 2, 3 }, { 1, 2 } },
+	{ { 5, 3 }, { 6, 2 } },
+	{ { 4, 3 }, { 6, 2 } },
+	{ { 3, 3 }, { 6, 2 } },
+	{ { 2, 3 }, { 3, 2 } },
+	{ { 2, 3 }, { 2, 2 } },
+	{ { 6, 3 }, { 6, 2 } }	/* Mute */
+};
 
 #define MAXCONTROLS	1
 static struct v4l2_queryctrl mxb_controls[] = {
@@ -117,12 +120,12 @@ struct mxb
 
 	struct i2c_adapter	i2c_adapter;
 
-	struct i2c_client	*saa7111a;
-	struct i2c_client	*tda9840;
-	struct i2c_client	*tea6415c;
-	struct i2c_client	*tuner;
-	struct i2c_client	*tea6420_1;
-	struct i2c_client	*tea6420_2;
+	struct v4l2_subdev	*saa7111a;
+	struct v4l2_subdev	*tda9840;
+	struct v4l2_subdev	*tea6415c;
+	struct v4l2_subdev	*tuner;
+	struct v4l2_subdev	*tea6420_1;
+	struct v4l2_subdev	*tea6420_2;
 
 	int	cur_mode;	/* current audio mode (mono, stereo, ...) */
 	int	cur_input;	/* current input */
@@ -130,84 +133,51 @@ struct mxb
 	struct v4l2_frequency	cur_freq;	/* current frequency the tuner is tuned to */
 };
 
-static struct saa7146_extension extension;
-
-static int mxb_check_clients(struct device *dev, void *data)
-{
-	struct mxb *mxb = data;
-	struct i2c_client *client = i2c_verify_client(dev);
-
-	if (!client)
-		return 0;
-
-	if (I2C_ADDR_TEA6420_1 == client->addr)
-		mxb->tea6420_1 = client;
-	if (I2C_ADDR_TEA6420_2 == client->addr)
-		mxb->tea6420_2 = client;
-	if (I2C_TEA6415C_2 == client->addr)
-		mxb->tea6415c = client;
-	if (I2C_ADDR_TDA9840 == client->addr)
-		mxb->tda9840 = client;
-	if (I2C_SAA7111 == client->addr)
-		mxb->saa7111a = client;
-	if (0x60 == client->addr)
-		mxb->tuner = client;
+#define saa7111a_call(mxb, o, f, args...) \
+	v4l2_subdev_call(mxb->saa7111a, o, f, ##args)
+#define tea6420_1_call(mxb, o, f, args...) \
+	v4l2_subdev_call(mxb->tea6420_1, o, f, ##args)
+#define tea6420_2_call(mxb, o, f, args...) \
+	v4l2_subdev_call(mxb->tea6420_2, o, f, ##args)
+#define tda9840_call(mxb, o, f, args...) \
+	v4l2_subdev_call(mxb->tda9840, o, f, ##args)
+#define tea6415c_call(mxb, o, f, args...) \
+	v4l2_subdev_call(mxb->tea6415c, o, f, ##args)
+#define tuner_call(mxb, o, f, args...) \
+	v4l2_subdev_call(mxb->tuner, o, f, ##args)
+#define call_all(dev, o, f, args...) \
+	v4l2_device_call_until_err(&dev->v4l2_dev, 0, o, f, ##args)
 
-	return 0;
-}
+static struct saa7146_extension extension;
 
-static int mxb_probe(struct saa7146_dev* dev)
+static int mxb_probe(struct saa7146_dev *dev)
 {
-	struct mxb* mxb = NULL;
-	int result;
-
-	result = request_module("saa7115");
-	if (result < 0) {
-		printk("mxb: saa7111 i2c module not available.\n");
-		return -ENODEV;
-	}
-	result = request_module("tea6420");
-	if (result < 0) {
-		printk("mxb: tea6420 i2c module not available.\n");
-		return -ENODEV;
-	}
-	result = request_module("tea6415c");
-	if (result < 0) {
-		printk("mxb: tea6415c i2c module not available.\n");
-		return -ENODEV;
-	}
-	result = request_module("tda9840");
-	if (result < 0) {
-		printk("mxb: tda9840 i2c module not available.\n");
-		return -ENODEV;
-	}
-	result = request_module("tuner");
-	if (result < 0) {
-		printk("mxb: tuner i2c module not available.\n");
-		return -ENODEV;
-	}
+	struct mxb *mxb = NULL;
 
 	mxb = kzalloc(sizeof(struct mxb), GFP_KERNEL);
-	if( NULL == mxb ) {
+	if (mxb == NULL) {
 		DEB_D(("not enough kernel memory.\n"));
 		return -ENOMEM;
 	}
 
-	mxb->i2c_adapter = (struct i2c_adapter) {
-		.class = I2C_CLASS_TV_ANALOG,
-	};
-
 	snprintf(mxb->i2c_adapter.name, sizeof(mxb->i2c_adapter.name), "mxb%d", mxb_num);
 
 	saa7146_i2c_adapter_prepare(dev, &mxb->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
-	if(i2c_add_adapter(&mxb->i2c_adapter) < 0) {
+	if (i2c_add_adapter(&mxb->i2c_adapter) < 0) {
 		DEB_S(("cannot register i2c-device. skipping.\n"));
 		kfree(mxb);
 		return -EFAULT;
 	}
 
-	/* loop through all i2c-devices on the bus and look who is there */
-	device_for_each_child(&mxb->i2c_adapter.dev, mxb, mxb_check_clients);
+	mxb->saa7111a = v4l2_i2c_new_subdev(&mxb->i2c_adapter, "saa7115", "saa7111", I2C_SAA7111A);
+	mxb->tea6420_1 = v4l2_i2c_new_subdev(&mxb->i2c_adapter, "tea6420", "tea6420", I2C_TEA6420_1);
+	mxb->tea6420_2 = v4l2_i2c_new_subdev(&mxb->i2c_adapter, "tea6420", "tea6420", I2C_TEA6420_2);
+	mxb->tea6415c = v4l2_i2c_new_subdev(&mxb->i2c_adapter, "tea6415c", "tea6415c", I2C_TEA6415C);
+	mxb->tda9840 = v4l2_i2c_new_subdev(&mxb->i2c_adapter, "tda9840", "tda9840", I2C_TDA9840);
+	mxb->tuner = v4l2_i2c_new_subdev(&mxb->i2c_adapter, "tuner", "tuner", I2C_TUNER);
+	if (v4l2_i2c_new_subdev(&mxb->i2c_adapter, "saa5246a", "saa5246a", I2C_SAA5246A)) {
+		printk(KERN_INFO "mxb: found teletext decoder\n");
+	}
 
 	/* check if all devices are present */
 	if (!mxb->tea6420_1 || !mxb->tea6420_2 || !mxb->tea6415c ||
@@ -295,47 +265,45 @@ static int mxb_init_done(struct saa7146_dev* dev)
 	struct v4l2_routing route;
 
 	int i = 0, err = 0;
-	struct tea6415c_multiplex vm;
 
 	/* select video mode in saa7111a */
-	mxb->saa7111a->driver->command(mxb->saa7111a, VIDIOC_S_STD, &std);
+	saa7111a_call(mxb, tuner, s_std, std);
 
 	/* select tuner-output on saa7111a */
 	i = 0;
 	route.input = SAA7115_COMPOSITE0;
 	route.output = SAA7111_FMT_CCIR | SAA7111_VBI_BYPASS;
-	mxb->saa7111a->driver->command(mxb->saa7111a, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+	saa7111a_call(mxb, video, s_routing, &route);
 
 	/* select a tuner type */
 	tun_setup.mode_mask = T_ANALOG_TV;
 	tun_setup.addr = ADDR_UNSET;
 	tun_setup.type = TUNER_PHILIPS_PAL;
-	mxb->tuner->driver->command(mxb->tuner, TUNER_SET_TYPE_ADDR, &tun_setup);
+	tuner_call(mxb, tuner, s_type_addr, &tun_setup);
 	/* tune in some frequency on tuner */
 	mxb->cur_freq.tuner = 0;
 	mxb->cur_freq.type = V4L2_TUNER_ANALOG_TV;
 	mxb->cur_freq.frequency = freq;
-	mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_FREQUENCY,
-					&mxb->cur_freq);
+	tuner_call(mxb, tuner, s_frequency, &mxb->cur_freq);
 
 	/* set a default video standard */
-	mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_STD, &std);
+	tuner_call(mxb, tuner, s_std, std);
 
 	/* mute audio on tea6420s */
-	mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH, &TEA6420_line[6][0]);
-	mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH, &TEA6420_line[6][1]);
-	mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH, &TEA6420_cd[6][0]);
-	mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH, &TEA6420_cd[6][1]);
+	tea6420_1_call(mxb, audio, s_routing, &TEA6420_line[6][0]);
+	tea6420_2_call(mxb, audio, s_routing, &TEA6420_line[6][1]);
+	tea6420_1_call(mxb, audio, s_routing, &TEA6420_line[6][0]);
+	tea6420_2_call(mxb, audio, s_routing, &TEA6420_line[6][1]);
 
-	/* switch to tuner-channel on tea6415c*/
-	vm.out = 17;
-	vm.in  = 3;
-	mxb->tea6415c->driver->command(mxb->tea6415c, TEA6415C_SWITCH, &vm);
+	/* switch to tuner-channel on tea6415c */
+	route.input = 3;
+	route.output = 17;
+	tea6415c_call(mxb, video, s_routing, &route);
 
-	/* select tuner-output on multicable on tea6415c*/
-	vm.in  = 3;
-	vm.out = 13;
-	mxb->tea6415c->driver->command(mxb->tea6415c, TEA6415C_SWITCH, &vm);
+	/* select tuner-output on multicable on tea6415c */
+	route.input = 3;
+	route.output = 13;
+	tea6415c_call(mxb, video, s_routing, &route);
 
 	/* the rest for mxb */
 	mxb->cur_input = 0;
@@ -461,14 +429,14 @@ static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
 		mxb->cur_mute = vc->value;
 		if (!vc->value) {
 			/* switch the audio-source */
-			mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
+			tea6420_1_call(mxb, audio, s_routing,
 					&TEA6420_line[video_audio_connect[mxb->cur_input]][0]);
-			mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
+			tea6420_2_call(mxb, audio, s_routing,
 					&TEA6420_line[video_audio_connect[mxb->cur_input]][1]);
 		} else {
-			mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
+			tea6420_1_call(mxb, audio, s_routing,
 					&TEA6420_line[6][0]);
-			mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
+			tea6420_2_call(mxb, audio, s_routing,
 					&TEA6420_line[6][1]);
 		}
 		DEB_EE(("VIDIOC_S_CTRL, V4L2_CID_AUDIO_MUTE: %d.\n", vc->value));
@@ -499,7 +467,6 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 {
 	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 	struct mxb *mxb = (struct mxb *)dev->ext_priv;
-	struct tea6415c_multiplex vm;
 	struct v4l2_routing route;
 	int i = 0;
 
@@ -518,16 +485,16 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 	switch (input) {
 	case TUNER:
 		i = SAA7115_COMPOSITE0;
-		vm.in  = 3;
-		vm.out = 17;
+		route.input = 3;
+		route.output = 17;
 
-		if (mxb->tea6415c->driver->command(mxb->tea6415c, TEA6415C_SWITCH, &vm)) {
+		if (tea6415c_call(mxb, video, s_routing, &route)) {
 			printk(KERN_ERR "VIDIOC_S_INPUT: could not address tea6415c #1\n");
 			return -EFAULT;
 		}
 		/* connect tuner-output always to multicable */
-		vm.in  = 3;
-		vm.out = 13;
+		route.input = 3;
+		route.output = 13;
 		break;
 	case AUX3_YC:
 		/* nothing to be done here. aux3_yc is
@@ -541,8 +508,8 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 		break;
 	case AUX1:
 		i = SAA7115_COMPOSITE0;
-		vm.in  = 1;
-		vm.out = 17;
+		route.input = 1;
+		route.output = 17;
 		break;
 	}
 
@@ -550,7 +517,7 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 	switch (input) {
 	case TUNER:
 	case AUX1:
-		if (mxb->tea6415c->driver->command(mxb->tea6415c, TEA6415C_SWITCH, &vm)) {
+		if (tea6415c_call(mxb, video, s_routing, &route)) {
 			printk(KERN_ERR "VIDIOC_S_INPUT: could not address tea6415c #3\n");
 			return -EFAULT;
 		}
@@ -562,14 +529,14 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 	/* switch video in saa7111a */
 	route.input = i;
 	route.output = 0;
-	if (mxb->saa7111a->driver->command(mxb->saa7111a, VIDIOC_INT_S_VIDEO_ROUTING, &route))
+	if (saa7111a_call(mxb, video, s_routing, &route))
 		printk(KERN_ERR "VIDIOC_S_INPUT: could not address saa7111a #1.\n");
 
 	/* switch the audio-source only if necessary */
 	if (0 == mxb->cur_mute) {
-		mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH,
+		tea6420_1_call(mxb, audio, s_routing,
 				&TEA6420_line[video_audio_connect[input]][0]);
-		mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH,
+		tea6420_2_call(mxb, audio, s_routing,
 				&TEA6420_line[video_audio_connect[input]][1]);
 	}
 
@@ -589,14 +556,12 @@ static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
 	DEB_EE(("VIDIOC_G_TUNER: %d\n", t->index));
 
 	memset(t, 0, sizeof(*t));
-	i2c_clients_command(&mxb->i2c_adapter, VIDIOC_G_TUNER, t);
-
 	strlcpy(t->name, "TV Tuner", sizeof(t->name));
 	t->type = V4L2_TUNER_ANALOG_TV;
 	t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
 			V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
 	t->audmode = mxb->cur_mode;
-	return 0;
+	return call_all(dev, tuner, g_tuner, t);
 }
 
 static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
@@ -610,8 +575,7 @@ static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
 	}
 
 	mxb->cur_mode = t->audmode;
-	i2c_clients_command(&mxb->i2c_adapter, VIDIOC_S_TUNER, t);
-	return 0;
+	return call_all(dev, tuner, s_tuner, t);
 }
 
 static int vidioc_g_frequency(struct file *file, void *fh, struct v4l2_frequency *f)
@@ -652,7 +616,7 @@ static int vidioc_s_frequency(struct file *file, void *fh, struct v4l2_frequency
 	DEB_EE(("VIDIOC_S_FREQUENCY: freq:0x%08x.\n", mxb->cur_freq.frequency));
 
 	/* tune in desired frequency */
-	mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_FREQUENCY, &mxb->cur_freq);
+	tuner_call(mxb, tuner, s_frequency, &mxb->cur_freq);
 
 	/* hack: changing the frequency should invalidate the vbi-counter (=> alevt) */
 	spin_lock(&dev->slock);
@@ -687,19 +651,15 @@ static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
 static int vidioc_g_register(struct file *file, void *fh, struct v4l2_dbg_register *reg)
 {
 	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
-	struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
-	i2c_clients_command(&mxb->i2c_adapter, VIDIOC_DBG_G_REGISTER, reg);
-	return 0;
+	return call_all(dev, core, g_register, reg);
 }
 
 static int vidioc_s_register(struct file *file, void *fh, struct v4l2_dbg_register *reg)
 {
 	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
-	struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
-	i2c_clients_command(&mxb->i2c_adapter, VIDIOC_DBG_S_REGISTER, reg);
-	return 0;
+	return call_all(dev, core, s_register, reg);
 }
 #endif
 
@@ -720,8 +680,8 @@ static long vidioc_default(struct file *file, void *fh, int cmd, void *arg)
 
 		DEB_EE(("MXB_S_AUDIO_CD: i:%d.\n", i));
 
-		mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH, &TEA6420_cd[i][0]);
-		mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH, &TEA6420_cd[i][1]);
+		tea6420_1_call(mxb, audio, s_routing, &TEA6420_cd[i][0]);
+		tea6420_2_call(mxb, audio, s_routing, &TEA6420_cd[i][1]);
 
 		return 0;
 	}
@@ -735,8 +695,8 @@ static long vidioc_default(struct file *file, void *fh, int cmd, void *arg)
 		}
 
 		DEB_EE(("MXB_S_AUDIO_LINE: i:%d.\n", i));
-		mxb->tea6420_1->driver->command(mxb->tea6420_1, TEA6420_SWITCH, &TEA6420_line[i][0]);
-		mxb->tea6420_2->driver->command(mxb->tea6420_2, TEA6420_SWITCH, &TEA6420_line[i][1]);
+		tea6420_1_call(mxb, audio, s_routing, &TEA6420_line[i][0]);
+		tea6420_2_call(mxb, audio, s_routing, &TEA6420_line[i][1]);
 
 		return 0;
 	}
@@ -791,13 +751,6 @@ static int mxb_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data
 		}
 	}
 
-	i2c_use_client(mxb->tea6420_1);
-	i2c_use_client(mxb->tea6420_2);
-	i2c_use_client(mxb->tea6415c);
-	i2c_use_client(mxb->tda9840);
-	i2c_use_client(mxb->saa7111a);
-	i2c_use_client(mxb->tuner);
-
 	printk("mxb: found Multimedia eXtension Board #%d.\n", mxb_num);
 
 	mxb_num++;
@@ -811,13 +764,6 @@ static int mxb_detach(struct saa7146_dev *dev)
 
 	DEB_EE(("dev:%p\n", dev));
 
-	i2c_release_client(mxb->tea6420_1);
-	i2c_release_client(mxb->tea6420_2);
-	i2c_release_client(mxb->tea6415c);
-	i2c_release_client(mxb->tda9840);
-	i2c_release_client(mxb->saa7111a);
-	i2c_release_client(mxb->tuner);
-
 	saa7146_unregister_device(&mxb->video_dev,dev);
 	if (MXB_BOARD_CAN_DO_VBI(dev))
 		saa7146_unregister_device(&mxb->vbi_dev, dev);
@@ -834,8 +780,6 @@ static int mxb_detach(struct saa7146_dev *dev)
 static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *standard)
 {
 	struct mxb *mxb = (struct mxb *)dev->ext_priv;
-	int zero = 0;
-	int one = 1;
 
 	if (V4L2_STD_PAL_I == standard->id) {
 		v4l2_std_id std = V4L2_STD_PAL_I;
@@ -844,8 +788,8 @@ static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *standa
 		/* set the 7146 gpio register -- I don't know what this does exactly */
 		saa7146_write(dev, GPIO_CTRL, 0x00404050);
 		/* unset the 7111 gpio register -- I don't know what this does exactly */
-		mxb->saa7111a->driver->command(mxb->saa7111a, VIDIOC_INT_S_GPIO, &zero);
-		mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_STD, &std);
+		saa7111a_call(mxb, core, s_gpio, 0);
+		tuner_call(mxb, tuner, s_std, std);
 	} else {
 		v4l2_std_id std = V4L2_STD_PAL_BG;
 
@@ -853,8 +797,8 @@ static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *standa
 		/* set the 7146 gpio register -- I don't know what this does exactly */
 		saa7146_write(dev, GPIO_CTRL, 0x00404050);
 		/* set the 7111 gpio register -- I don't know what this does exactly */
-		mxb->saa7111a->driver->command(mxb->saa7111a, VIDIOC_INT_S_GPIO, &one);
-		mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_STD, &std);
+		saa7111a_call(mxb, core, s_gpio, 1);
+		tuner_call(mxb, tuner, s_std, std);
 	}
 	return 0;
 }
diff --git a/drivers/media/video/saa5246a.c b/drivers/media/video/saa5246a.c
index 8f117bd50b86..da47b2f05288 100644
--- a/drivers/media/video/saa5246a.c
+++ b/drivers/media/video/saa5246a.c
@@ -46,10 +46,11 @@
 #include <linux/smp_lock.h>
 #include <linux/mutex.h>
 #include <linux/videotext.h>
-#include <linux/videodev.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-i2c-drv-legacy.h>
+#include <media/v4l2-i2c-drv.h>
 
 MODULE_AUTHOR("Michael Geng <linux@MichaelGeng.de>");
 MODULE_DESCRIPTION("Philips SAA5246A, SAA5281 Teletext decoder driver");
@@ -388,13 +389,19 @@ MODULE_LICENSE("GPL");
 
 struct saa5246a_device
 {
+	struct v4l2_subdev sd;
+	struct video_device *vdev;
 	u8     pgbuf[NUM_DAUS][VTX_VIRTUALSIZE];
 	int    is_searching[NUM_DAUS];
-	struct i2c_client *client;
 	unsigned long in_use;
 	struct mutex lock;
 };
 
+static inline struct saa5246a_device *to_dev(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct saa5246a_device, sd);
+}
+
 static struct video_device saa_template;	/* Declared near bottom */
 
 /*
@@ -403,12 +410,13 @@ static struct video_device saa_template;	/* Declared near bottom */
 
 static int i2c_sendbuf(struct saa5246a_device *t, int reg, int count, u8 *data)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(&t->sd);
 	char buf[64];
 
 	buf[0] = reg;
 	memcpy(buf+1, data, count);
 
-	if(i2c_master_send(t->client, buf, count+1)==count+1)
+	if (i2c_master_send(client, buf, count + 1) == count + 1)
 		return 0;
 	return -1;
 }
@@ -436,7 +444,9 @@ static int i2c_senddata(struct saa5246a_device *t, ...)
  */
 static int i2c_getdata(struct saa5246a_device *t, int count, u8 *buf)
 {
-	if(i2c_master_recv(t->client, buf, count)!=count)
+	struct i2c_client *client = v4l2_get_subdevdata(&t->sd);
+
+	if (i2c_master_recv(client, buf, count) != count)
 		return -1;
 	return 0;
 }
@@ -961,9 +971,6 @@ static int saa5246a_open(struct file *file)
 {
 	struct saa5246a_device *t = video_drvdata(file);
 
-	if (t->client == NULL)
-		return -ENODEV;
-
 	if (test_and_set_bit(0, &t->in_use))
 		return -EBUSY;
 
@@ -1033,18 +1040,29 @@ static struct video_device saa_template =
 	.minor    = -1,
 };
 
-/* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x22 >> 1, I2C_CLIENT_END };
+static int saa5246a_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA5246A, 0);
+}
+
+static const struct v4l2_subdev_core_ops saa5246a_core_ops = {
+	.g_chip_ident = saa5246a_g_chip_ident,
+};
+
+static const struct v4l2_subdev_ops saa5246a_ops = {
+	.core = &saa5246a_core_ops,
+};
 
-I2C_CLIENT_INSMOD;
 
 static int saa5246a_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	int pgbuf;
 	int err;
-	struct video_device *vd;
 	struct saa5246a_device *t;
+	struct v4l2_subdev *sd;
 
 	v4l_info(client, "chip found @ 0x%x (%s)\n",
 			client->addr << 1, client->adapter->name);
@@ -1053,40 +1071,43 @@ static int saa5246a_probe(struct i2c_client *client,
 	t = kzalloc(sizeof(*t), GFP_KERNEL);
 	if (t == NULL)
 		return -ENOMEM;
+	sd = &t->sd;
+	v4l2_i2c_subdev_init(sd, client, &saa5246a_ops);
 	mutex_init(&t->lock);
 
 	/* Now create a video4linux device */
-	vd = video_device_alloc();
-	if (vd == NULL) {
+	t->vdev = video_device_alloc();
+	if (t->vdev == NULL) {
 		kfree(t);
 		return -ENOMEM;
 	}
-	i2c_set_clientdata(client, vd);
-	memcpy(vd, &saa_template, sizeof(*vd));
+	memcpy(t->vdev, &saa_template, sizeof(*t->vdev));
 
 	for (pgbuf = 0; pgbuf < NUM_DAUS; pgbuf++) {
 		memset(t->pgbuf[pgbuf], ' ', sizeof(t->pgbuf[0]));
 		t->is_searching[pgbuf] = false;
 	}
-	video_set_drvdata(vd, t);
+	video_set_drvdata(t->vdev, t);
 
 	/* Register it */
-	err = video_register_device(vd, VFL_TYPE_VTX, -1);
+	err = video_register_device(t->vdev, VFL_TYPE_VTX, -1);
 	if (err < 0) {
 		kfree(t);
-		video_device_release(vd);
+		video_device_release(t->vdev);
+		t->vdev = NULL;
 		return err;
 	}
-	t->client = client;
 	return 0;
 }
 
 static int saa5246a_remove(struct i2c_client *client)
 {
-	struct video_device *vd = i2c_get_clientdata(client);
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct saa5246a_device *t = to_dev(sd);
 
-	video_unregister_device(vd);
-	kfree(video_get_drvdata(vd));
+	video_unregister_device(t->vdev);
+	v4l2_device_unregister_subdev(sd);
+	kfree(t);
 	return 0;
 }
 
diff --git a/drivers/media/video/saa5249.c b/drivers/media/video/saa5249.c
index 81e666df0db7..48b27fe48087 100644
--- a/drivers/media/video/saa5249.c
+++ b/drivers/media/video/saa5249.c
@@ -50,15 +50,17 @@
 #include <linux/mutex.h>
 #include <linux/delay.h>
 #include <linux/videotext.h>
-#include <linux/videodev.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-i2c-drv-legacy.h>
+#include <media/v4l2-i2c-drv.h>
 
 MODULE_AUTHOR("Michael Geng <linux@MichaelGeng.de>");
 MODULE_DESCRIPTION("Philips SAA5249 Teletext decoder driver");
 MODULE_LICENSE("GPL");
 
+
 #define VTX_VER_MAJ 1
 #define VTX_VER_MIN 8
 
@@ -95,17 +97,23 @@ typedef struct {
 
 struct saa5249_device
 {
+	struct v4l2_subdev sd;
+	struct video_device *vdev;
 	vdau_t vdau[NUM_DAUS];			/* Data for virtual DAUs (the 5249 only has one */
 						/* real DAU, so we have to simulate some more) */
 	int vtx_use_count;
 	int is_searching[NUM_DAUS];
 	int disp_mode;
 	int virtual_mode;
-	struct i2c_client *client;
 	unsigned long in_use;
 	struct mutex lock;
 };
 
+static inline struct saa5249_device *to_dev(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct saa5249_device, sd);
+}
+
 
 #define CCTWR 34		/* I²C write/read-address of vtx-chip */
 #define CCTRD 35
@@ -147,12 +155,13 @@ static void jdelay(unsigned long delay)
 
 static int i2c_sendbuf(struct saa5249_device *t, int reg, int count, u8 *data)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(&t->sd);
 	char buf[64];
 
 	buf[0] = reg;
 	memcpy(buf+1, data, count);
 
-	if (i2c_master_send(t->client, buf, count + 1) == count + 1)
+	if (i2c_master_send(client, buf, count + 1) == count + 1)
 		return 0;
 	return -1;
 }
@@ -180,7 +189,9 @@ static int i2c_senddata(struct saa5249_device *t, ...)
 
 static int i2c_getdata(struct saa5249_device *t, int count, u8 *buf)
 {
-	if(i2c_master_recv(t->client, buf, count)!=count)
+	struct i2c_client *client = v4l2_get_subdevdata(&t->sd);
+
+	if (i2c_master_recv(client, buf, count) != count)
 		return -1;
 	return 0;
 }
@@ -497,9 +508,6 @@ static int saa5249_open(struct file *file)
 	struct saa5249_device *t = video_drvdata(file);
 	int pgbuf;
 
-	if (t->client == NULL)
-		return -ENODEV;
-
 	if (test_and_set_bit(0, &t->in_use))
 		return -EBUSY;
 
@@ -553,18 +561,28 @@ static struct video_device saa_template =
 	.release 	= video_device_release,
 };
 
-/* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x22 >> 1, I2C_CLIENT_END };
+static int saa5249_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA5249, 0);
+}
 
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_core_ops saa5249_core_ops = {
+	.g_chip_ident = saa5249_g_chip_ident,
+};
+
+static const struct v4l2_subdev_ops saa5249_ops = {
+	.core = &saa5249_core_ops,
+};
 
 static int saa5249_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	int pgbuf;
 	int err;
-	struct video_device *vd;
 	struct saa5249_device *t;
+	struct v4l2_subdev *sd;
 
 	v4l_info(client, "chip found @ 0x%x (%s)\n",
 			client->addr << 1, client->adapter->name);
@@ -573,16 +591,17 @@ static int saa5249_probe(struct i2c_client *client,
 	t = kzalloc(sizeof(*t), GFP_KERNEL);
 	if (t == NULL)
 		return -ENOMEM;
+	sd = &t->sd;
+	v4l2_i2c_subdev_init(sd, client, &saa5249_ops);
 	mutex_init(&t->lock);
 
 	/* Now create a video4linux device */
-	vd = kmalloc(sizeof(struct video_device), GFP_KERNEL);
-	if (vd == NULL) {
+	t->vdev = video_device_alloc();
+	if (t->vdev == NULL) {
 		kfree(client);
 		return -ENOMEM;
 	}
-	i2c_set_clientdata(client, vd);
-	memcpy(vd, &saa_template, sizeof(*vd));
+	memcpy(t->vdev, &saa_template, sizeof(*t->vdev));
 
 	for (pgbuf = 0; pgbuf < NUM_DAUS; pgbuf++) {
 		memset(t->vdau[pgbuf].pgbuf, ' ', sizeof(t->vdau[0].pgbuf));
@@ -593,26 +612,27 @@ static int saa5249_probe(struct i2c_client *client,
 		t->vdau[pgbuf].stopped = true;
 		t->is_searching[pgbuf] = false;
 	}
-	video_set_drvdata(vd, t);
+	video_set_drvdata(t->vdev, t);
 
 	/* Register it */
-	err = video_register_device(vd, VFL_TYPE_VTX, -1);
+	err = video_register_device(t->vdev, VFL_TYPE_VTX, -1);
 	if (err < 0) {
 		kfree(t);
-		kfree(vd);
+		video_device_release(t->vdev);
+		t->vdev = NULL;
 		return err;
 	}
-	t->client = client;
 	return 0;
 }
 
 static int saa5249_remove(struct i2c_client *client)
 {
-	struct video_device *vd = i2c_get_clientdata(client);
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct saa5249_device *t = to_dev(sd);
 
-	video_unregister_device(vd);
-	kfree(video_get_drvdata(vd));
-	kfree(vd);
+	video_unregister_device(t->vdev);
+	v4l2_device_unregister_subdev(sd);
+	kfree(t);
 	return 0;
 }
 
diff --git a/drivers/media/video/tda9840.c b/drivers/media/video/tda9840.c
index ae46a28dd052..fe1158094c24 100644
--- a/drivers/media/video/tda9840.c
+++ b/drivers/media/video/tda9840.c
@@ -30,8 +30,8 @@
 #include <linux/ioctl.h>
 #include <linux/i2c.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-i2c-drv-legacy.h>
-#include "tda9840.h"
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
 
 MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
 MODULE_DESCRIPTION("tda9840 driver");
@@ -56,11 +56,6 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
 #define TDA9840_SET_BOTH_R              0x16
 #define TDA9840_SET_EXTERNAL            0x7a
 
-/* addresses to scan, found only at 0x42 (7-Bit) */
-static unsigned short normal_i2c[] = { I2C_ADDR_TDA9840, I2C_CLIENT_END };
-
-/* magic definition of all other variables and things */
-I2C_CLIENT_INSMOD;
 
 static void tda9840_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 {
@@ -137,60 +132,17 @@ static int tda9840_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *t)
 	return 0;
 }
 
-static long tda9840_ioctl(struct v4l2_subdev *sd, unsigned cmd, void *arg)
+static int tda9840_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
 {
-	int byte;
-
-	switch (cmd) {
-	case TDA9840_LEVEL_ADJUST:
-		byte = *(int *)arg;
-		v4l2_dbg(1, debug, sd, "TDA9840_LEVEL_ADJUST: %d\n", byte);
-
-		/* check for correct range */
-		if (byte > 25 || byte < -20)
-			return -EINVAL;
-
-		/* calculate actual value to set, see specs, page 18 */
-		byte /= 5;
-		if (0 < byte)
-			byte += 0x8;
-		else
-			byte = -byte;
-		tda9840_write(sd, LEVEL_ADJUST, byte);
-		break;
-
-	case TDA9840_STEREO_ADJUST:
-		byte = *(int *)arg;
-		v4l2_dbg(1, debug, sd, "TDA9840_STEREO_ADJUST: %d\n", byte);
-
-		/* check for correct range */
-		if (byte > 25 || byte < -24)
-			return -EINVAL;
-
-		/* calculate actual value to set */
-		byte /= 5;
-		if (0 < byte)
-			byte += 0x20;
-		else
-			byte = -byte;
-
-		tda9840_write(sd, STEREO_ADJUST, byte);
-		break;
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-static int tda9840_command(struct i2c_client *client, unsigned cmd, void *arg)
-{
-	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TDA9840, 0);
 }
 
 /* ----------------------------------------------------------------------- */
 
 static const struct v4l2_subdev_core_ops tda9840_core_ops = {
-	.ioctl = tda9840_ioctl,
+	.g_chip_ident = tda9840_g_chip_ident,
 };
 
 static const struct v4l2_subdev_tuner_ops tda9840_tuner_ops = {
@@ -209,8 +161,6 @@ static int tda9840_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
 	struct v4l2_subdev *sd;
-	int result;
-	int byte;
 
 	/* let's see whether this adapter can support what we need */
 	if (!i2c_check_functionality(client->adapter,
@@ -227,15 +177,9 @@ static int tda9840_probe(struct i2c_client *client,
 	v4l2_i2c_subdev_init(sd, client, &tda9840_ops);
 
 	/* set initial values for level & stereo - adjustment, mode */
-	byte = 0;
-	result = tda9840_ioctl(sd, TDA9840_LEVEL_ADJUST, &byte);
-	result |= tda9840_ioctl(sd, TDA9840_STEREO_ADJUST, &byte);
+	tda9840_write(sd, LEVEL_ADJUST, 0);
+	tda9840_write(sd, STEREO_ADJUST, 0);
 	tda9840_write(sd, SWITCH, TDA9840_SET_STEREO);
-	if (result) {
-		v4l2_dbg(1, debug, sd, "could not initialize tda9840\n");
-		kfree(sd);
-		return -ENODEV;
-	}
 	return 0;
 }
 
@@ -248,12 +192,7 @@ static int tda9840_remove(struct i2c_client *client)
 	return 0;
 }
 
-static int tda9840_legacy_probe(struct i2c_adapter *adapter)
-{
-	/* Let's see whether this is a known adapter we can attach to.
-	   Prevents conflicts with tvaudio.c. */
-	return adapter->id == I2C_HW_SAA7146;
-}
+
 static const struct i2c_device_id tda9840_id[] = {
 	{ "tda9840", 0 },
 	{ }
@@ -262,9 +201,7 @@ MODULE_DEVICE_TABLE(i2c, tda9840_id);
 
 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
 	.name = "tda9840",
-	.command = tda9840_command,
 	.probe = tda9840_probe,
 	.remove = tda9840_remove,
-	.legacy_probe = tda9840_legacy_probe,
 	.id_table = tda9840_id,
 };
diff --git a/drivers/media/video/tda9840.h b/drivers/media/video/tda9840.h
deleted file mode 100644
index dc12ae7caf6f..000000000000
--- a/drivers/media/video/tda9840.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef __INCLUDED_TDA9840__
-#define __INCLUDED_TDA9840__
-
-#define	I2C_ADDR_TDA9840		0x42
-
-/* values may range between +2.5 and -2.0;
-   the value has to be multiplied with 10 */
-#define TDA9840_LEVEL_ADJUST	_IOW('v',3,int)
-
-/* values may range between +2.5 and -2.4;
-   the value has to be multiplied with 10 */
-#define TDA9840_STEREO_ADJUST	_IOW('v',4,int)
-
-#endif
diff --git a/drivers/media/video/tea6415c.c b/drivers/media/video/tea6415c.c
index bb9b7780c49f..d61c56f42bcd 100644
--- a/drivers/media/video/tea6415c.c
+++ b/drivers/media/video/tea6415c.c
@@ -32,7 +32,8 @@
 #include <linux/ioctl.h>
 #include <linux/i2c.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-i2c-drv-legacy.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
 #include "tea6415c.h"
 
 MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
@@ -44,25 +45,22 @@ module_param(debug, int, 0644);
 
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
-/* addresses to scan, found only at 0x03 and/or 0x43 (7-bit) */
-static unsigned short normal_i2c[] = { I2C_TEA6415C_1, I2C_TEA6415C_2, I2C_CLIENT_END };
 
-/* magic definition of all other variables and things */
-I2C_CLIENT_INSMOD;
-
-/* makes a connection between the input-pin 'i' and the output-pin 'o'
-   for the tea6415c-client 'client' */
-static int switch_matrix(struct i2c_client *client, int i, int o)
+/* makes a connection between the input-pin 'i' and the output-pin 'o' */
+static int tea6415c_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	u8 byte = 0;
+	u32 i = route->input;
+	u32 o = route->output;
 	int ret;
 
-	v4l_dbg(1, debug, client, "i=%d, o=%d\n", i, o);
+	v4l2_dbg(1, debug, sd, "i=%d, o=%d\n", i, o);
 
 	/* check if the pins are valid */
 	if (0 == ((1 == i ||  3 == i ||  5 == i ||  6 == i ||  8 == i || 10 == i || 20 == i || 11 == i)
 	      && (18 == o || 17 == o || 16 == o || 15 == o || 14 == o || 13 == o)))
-		return -1;
+		return -EINVAL;
 
 	/* to understand this, have a look at the tea6415c-specs (p.5) */
 	switch (o) {
@@ -115,37 +113,33 @@ static int switch_matrix(struct i2c_client *client, int i, int o)
 
 	ret = i2c_smbus_write_byte(client, byte);
 	if (ret) {
-		v4l_dbg(1, debug, client,
+		v4l2_dbg(1, debug, sd,
 			"i2c_smbus_write_byte() failed, ret:%d\n", ret);
 		return -EIO;
 	}
 	return ret;
 }
 
-static long tea6415c_ioctl(struct v4l2_subdev *sd, unsigned cmd, void *arg)
+static int tea6415c_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
 {
-	if (cmd == TEA6415C_SWITCH) {
-		struct i2c_client *client = v4l2_get_subdevdata(sd);
-		struct tea6415c_multiplex *v = (struct tea6415c_multiplex *)arg;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-		return switch_matrix(client, v->in, v->out);
-	}
-	return -ENOIOCTLCMD;
-}
-
-static int tea6415c_command(struct i2c_client *client, unsigned cmd, void *arg)
-{
-	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TEA6415C, 0);
 }
 
 /* ----------------------------------------------------------------------- */
 
 static const struct v4l2_subdev_core_ops tea6415c_core_ops = {
-	.ioctl = tea6415c_ioctl,
+	.g_chip_ident = tea6415c_g_chip_ident,
+};
+
+static const struct v4l2_subdev_video_ops tea6415c_video_ops = {
+	.s_routing = tea6415c_s_routing,
 };
 
 static const struct v4l2_subdev_ops tea6415c_ops = {
 	.core = &tea6415c_core_ops,
+	.video = &tea6415c_video_ops,
 };
 
 /* this function is called by i2c_probe */
@@ -176,12 +170,6 @@ static int tea6415c_remove(struct i2c_client *client)
 	return 0;
 }
 
-static int tea6415c_legacy_probe(struct i2c_adapter *adapter)
-{
-	/* Let's see whether this is a known adapter we can attach to.
-	   Prevents conflicts with tvaudio.c. */
-	return adapter->id == I2C_HW_SAA7146;
-}
 
 static const struct i2c_device_id tea6415c_id[] = {
 	{ "tea6415c", 0 },
@@ -191,9 +179,7 @@ MODULE_DEVICE_TABLE(i2c, tea6415c_id);
 
 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
 	.name = "tea6415c",
-	.command = tea6415c_command,
 	.probe = tea6415c_probe,
 	.remove = tea6415c_remove,
-	.legacy_probe = tea6415c_legacy_probe,
 	.id_table = tea6415c_id,
 };
diff --git a/drivers/media/video/tea6415c.h b/drivers/media/video/tea6415c.h
index f84ed80050b3..3a47d697536e 100644
--- a/drivers/media/video/tea6415c.h
+++ b/drivers/media/video/tea6415c.h
@@ -1,10 +1,6 @@
 #ifndef __INCLUDED_TEA6415C__
 #define __INCLUDED_TEA6415C__
 
-/* possible i2c-addresses */
-#define	I2C_TEA6415C_1		0x03
-#define	I2C_TEA6415C_2		0x43
-
 /* the tea6415c's design is quite brain-dead. although there are
    8 inputs and 6 outputs, these aren't enumerated in any way. because
    I don't want to say "connect input pin 20 to output pin 17", I define
@@ -28,12 +24,4 @@
 #define TEA6415C_INPUT7 1
 #define TEA6415C_INPUT8 11
 
-struct tea6415c_multiplex
-{
-	int	in;	/* input-pin */
-	int	out;	/* output-pin */
-};
-
-#define TEA6415C_SWITCH		_IOW('v',1,struct tea6415c_multiplex)
-
 #endif
diff --git a/drivers/media/video/tea6420.c b/drivers/media/video/tea6420.c
index 7546509c8282..34922232402a 100644
--- a/drivers/media/video/tea6420.c
+++ b/drivers/media/video/tea6420.c
@@ -32,7 +32,8 @@
 #include <linux/ioctl.h>
 #include <linux/i2c.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-i2c-drv-legacy.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
 #include "tea6420.h"
 
 MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
@@ -44,24 +45,23 @@ module_param(debug, int, 0644);
 
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
-/* addresses to scan, found only at 0x4c and/or 0x4d (7-Bit) */
-static unsigned short normal_i2c[] = { I2C_ADDR_TEA6420_1, I2C_ADDR_TEA6420_2, I2C_CLIENT_END };
-
-/* magic definition of all other variables and things */
-I2C_CLIENT_INSMOD;
 
 /* make a connection between the input 'i' and the output 'o'
-   with gain 'g' for the tea6420-client 'client' (note: i = 6 means 'mute') */
-static int tea6420_switch(struct i2c_client *client, int i, int o, int g)
+   with gain 'g' (note: i = 6 means 'mute') */
+static int tea6420_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int i = route->input;
+	int o = route->output & 0xf;
+	int g = (route->output >> 4) & 0xf;
 	u8 byte;
 	int ret;
 
-	v4l_dbg(1, debug, client, "i=%d, o=%d, g=%d\n", i, o, g);
+	v4l2_dbg(1, debug, sd, "i=%d, o=%d, g=%d\n", i, o, g);
 
 	/* check if the parameters are valid */
 	if (i < 1 || i > 6 || o < 1 || o > 4 || g < 0 || g > 6 || g % 2 != 0)
-		return -1;
+		return -EINVAL;
 
 	byte = ((o - 1) << 5);
 	byte |= (i - 1);
@@ -83,37 +83,33 @@ static int tea6420_switch(struct i2c_client *client, int i, int o, int g)
 
 	ret = i2c_smbus_write_byte(client, byte);
 	if (ret) {
-		v4l_dbg(1, debug, client,
+		v4l2_dbg(1, debug, sd,
 			"i2c_smbus_write_byte() failed, ret:%d\n", ret);
 		return -EIO;
 	}
 	return 0;
 }
 
-static long tea6420_ioctl(struct v4l2_subdev *sd, unsigned cmd, void *arg)
+static int tea6420_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
 {
-	if (cmd == TEA6420_SWITCH) {
-		struct i2c_client *client = v4l2_get_subdevdata(sd);
-		struct tea6420_multiplex *a = (struct tea6420_multiplex *)arg;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-		return tea6420_switch(client, a->in, a->out, a->gain);
-	}
-	return -ENOIOCTLCMD;
-}
-
-static int tea6420_command(struct i2c_client *client, unsigned cmd, void *arg)
-{
-	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TEA6420, 0);
 }
 
 /* ----------------------------------------------------------------------- */
 
 static const struct v4l2_subdev_core_ops tea6420_core_ops = {
-	.ioctl = tea6420_ioctl,
+	.g_chip_ident = tea6420_g_chip_ident,
+};
+
+static const struct v4l2_subdev_audio_ops tea6420_audio_ops = {
+	.s_routing = tea6420_s_routing,
 };
 
 static const struct v4l2_subdev_ops tea6420_ops = {
 	.core = &tea6420_core_ops,
+	.audio = &tea6420_audio_ops,
 };
 
 /* this function is called by i2c_probe */
@@ -130,20 +126,24 @@ static int tea6420_probe(struct i2c_client *client,
 	v4l_info(client, "chip found @ 0x%x (%s)\n",
 			client->addr << 1, client->adapter->name);
 
+	sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL);
+	if (sd == NULL)
+		return -ENOMEM;
+	v4l2_i2c_subdev_init(sd, client, &tea6420_ops);
+
 	/* set initial values: set "mute"-input to all outputs at gain 0 */
 	err = 0;
 	for (i = 1; i < 5; i++) {
-		err += tea6420_switch(client, 6, i, 0);
+		struct v4l2_routing route;
+
+		route.input = 6;
+		route.output = i;
+		err += tea6420_s_routing(sd, &route);
 	}
 	if (err) {
 		v4l_dbg(1, debug, client, "could not initialize tea6420\n");
 		return -ENODEV;
 	}
-
-	sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL);
-	if (sd == NULL)
-		return -ENOMEM;
-	v4l2_i2c_subdev_init(sd, client, &tea6420_ops);
 	return 0;
 }
 
@@ -156,12 +156,6 @@ static int tea6420_remove(struct i2c_client *client)
 	return 0;
 }
 
-static int tea6420_legacy_probe(struct i2c_adapter *adapter)
-{
-	/* Let's see whether this is a known adapter we can attach to.
-	   Prevents conflicts with tvaudio.c. */
-	return adapter->id == I2C_HW_SAA7146;
-}
 
 static const struct i2c_device_id tea6420_id[] = {
 	{ "tea6420", 0 },
@@ -171,9 +165,7 @@ MODULE_DEVICE_TABLE(i2c, tea6420_id);
 
 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
 	.name = "tea6420",
-	.command = tea6420_command,
 	.probe = tea6420_probe,
 	.remove = tea6420_remove,
-	.legacy_probe = tea6420_legacy_probe,
 	.id_table = tea6420_id,
 };
diff --git a/drivers/media/video/tea6420.h b/drivers/media/video/tea6420.h
index 5ef7c18e0c54..4aa3edb3e193 100644
--- a/drivers/media/video/tea6420.h
+++ b/drivers/media/video/tea6420.h
@@ -1,17 +1,24 @@
 #ifndef __INCLUDED_TEA6420__
 #define __INCLUDED_TEA6420__
 
-/* possible addresses */
-#define	I2C_ADDR_TEA6420_1		0x4c
-#define	I2C_ADDR_TEA6420_2		0x4d
+/* input pins */
+#define TEA6420_OUTPUT1 1
+#define TEA6420_OUTPUT2 2
+#define TEA6420_OUTPUT3 3
+#define TEA6420_OUTPUT4 4
 
-struct tea6420_multiplex
-{
-	int	in;	/* input of audio switch */
-	int	out;	/* output of audio switch  */
-	int	gain;	/* gain of connection */
-};
+/* output pins */
+#define TEA6420_INPUT1 1
+#define TEA6420_INPUT2 2
+#define TEA6420_INPUT3 3
+#define TEA6420_INPUT4 4
+#define TEA6420_INPUT5 5
+#define TEA6420_INPUT6 6
 
-#define TEA6420_SWITCH		_IOW('v',1,struct tea6420_multiplex)
+/* gain on the output pins, ORed with the output pin */
+#define TEA6420_GAIN0 0x00
+#define TEA6420_GAIN2 0x20
+#define TEA6420_GAIN4 0x40
+#define TEA6420_GAIN6 0x60
 
 #endif
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index 9aaf652b20ef..4e2182e52a8e 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -63,6 +63,9 @@ enum {
 	V4L2_IDENT_OV7720 = 251,
 	V4L2_IDENT_OV7725 = 252,
 
+	/* module saa7146: reserved range 300-309 */
+	V4L2_IDENT_SAA7146 = 300,
+
 	/* Conexant MPEG encoder/decoders: reserved range 410-420 */
 	V4L2_IDENT_CX23415 = 415,
 	V4L2_IDENT_CX23416 = 416,
@@ -74,9 +77,21 @@ enum {
 	/* module tvp5150 */
 	V4L2_IDENT_TVP5150 = 5150,
 
+	/* module saa5246a: just ident 5246 */
+	V4L2_IDENT_SAA5246A = 5246,
+
+	/* module saa5249: just ident 5249 */
+	V4L2_IDENT_SAA5249 = 5249,
+
 	/* module cs5345: just ident 5345 */
 	V4L2_IDENT_CS5345 = 5345,
 
+	/* module tea6415c: just ident 6415 */
+	V4L2_IDENT_TEA6415C = 6415,
+
+	/* module tea6420: just ident 6420 */
+	V4L2_IDENT_TEA6420 = 6420,
+
 	/* module saa6752hs: reserved range 6750-6759 */
 	V4L2_IDENT_SAA6752HS = 6752,
 	V4L2_IDENT_SAA6752HS_AC3 = 6753,
@@ -87,6 +102,9 @@ enum {
 	/* module wm8775: just ident 8775 */
 	V4L2_IDENT_WM8775 = 8775,
 
+	/* module tda9840: just ident 9840 */
+	V4L2_IDENT_TDA9840 = 9840,
+
 	/* module tw9910: just ident 9910 */
 	V4L2_IDENT_TW9910 = 9910,
 
-- 
cgit v1.2.3


From 9fc2c5ee5d9d797730dd05616757b329f6a227e9 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Wed, 11 Feb 2009 14:15:14 -0300
Subject: V4L/DVB (10515): Adds IR table for the IR provided with this board
 and includes it at

Kaiomy entry.

Thanks to Peter Senna Tschudin <peter.senna@gmail.com> for borrow me one
of those devices.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/common/ir-keymaps.c         | 49 +++++++++++++++++++++++++++++++
 drivers/media/video/em28xx/em28xx-cards.c |  1 +
 include/media/ir-common.h                 |  1 +
 3 files changed, 51 insertions(+)

(limited to 'include')

diff --git a/drivers/media/common/ir-keymaps.c b/drivers/media/common/ir-keymaps.c
index d8229a0e9a9c..d7b205472e1c 100644
--- a/drivers/media/common/ir-keymaps.c
+++ b/drivers/media/common/ir-keymaps.c
@@ -2452,6 +2452,55 @@ IR_KEYTAB_TYPE ir_codes_kworld_plus_tv_analog[IR_KEYTAB_SIZE] = {
 };
 EXPORT_SYMBOL_GPL(ir_codes_kworld_plus_tv_analog);
 
+/* Kaiomy TVnPC U2
+   Mauro Carvalho Chehab <mchehab@infradead.org>
+ */
+IR_KEYTAB_TYPE ir_codes_kaiomy[IR_KEYTAB_SIZE] = {
+	[0x43] = KEY_POWER2,
+	[0x01] = KEY_LIST,
+	[0x0b] = KEY_ZOOM,
+	[0x03] = KEY_POWER,
+
+	[0x04] = KEY_1,
+	[0x08] = KEY_2,
+	[0x02] = KEY_3,
+
+	[0x0f] = KEY_4,
+	[0x05] = KEY_5,
+	[0x06] = KEY_6,
+
+	[0x0c] = KEY_7,
+	[0x0d] = KEY_8,
+	[0x0a] = KEY_9,
+
+	[0x11] = KEY_0,
+
+	[0x09] = KEY_CHANNELUP,
+	[0x07] = KEY_CHANNELDOWN,
+
+	[0x0e] = KEY_VOLUMEUP,
+	[0x13] = KEY_VOLUMEDOWN,
+
+	[0x10] = KEY_HOME,
+	[0x12] = KEY_ENTER,
+
+	[0x14] = KEY_RECORD,
+	[0x15] = KEY_STOP,
+	[0x16] = KEY_PLAY,
+	[0x17] = KEY_MUTE,
+
+	[0x18] = KEY_UP,
+	[0x19] = KEY_DOWN,
+	[0x1a] = KEY_LEFT,
+	[0x1b] = KEY_RIGHT,
+
+	[0x1c] = KEY_RED,
+	[0x1d] = KEY_GREEN,
+	[0x1e] = KEY_YELLOW,
+	[0x1f] = KEY_BLUE,
+};
+EXPORT_SYMBOL_GPL(ir_codes_kaiomy);
+
 IR_KEYTAB_TYPE ir_codes_avermedia_a16d[IR_KEYTAB_SIZE] = {
 	[0x20] = KEY_LIST,
 	[0x00] = KEY_POWER,
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index c62243ef73b4..2048a8761099 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -1260,6 +1260,7 @@ struct em28xx_board em28xx_boards[] = {
 		.mts_firmware = 1,
 		.decoder      = EM28XX_TVP5150,
 		.tuner_gpio   = default_tuner_gpio,
+		.ir_codes     = ir_codes_kaiomy,
 		.input          = { {
 			.type     = EM28XX_VMUX_TELEVISION,
 			.vmux     = TVP5150_COMPOSITE0,
diff --git a/include/media/ir-common.h b/include/media/ir-common.h
index 5bf2ea00678c..31e62abb59ad 100644
--- a/include/media/ir-common.h
+++ b/include/media/ir-common.h
@@ -159,6 +159,7 @@ extern IR_KEYTAB_TYPE ir_codes_real_audio_220_32_keys[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_msi_tvanywhere_plus[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_ati_tv_wonder_hd_600[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_kworld_plus_tv_analog[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_kaiomy[IR_KEYTAB_SIZE];
 #endif
 
 /*
-- 
cgit v1.2.3


From f1f8c907b752ed281b1b4e6ca3605db50a8d6250 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Wed, 11 Feb 2009 19:28:30 -0300
Subject: V4L/DVB (10538): saa6588: add g_chip_ident support.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/saa6588.c   | 9 +++++++++
 include/media/v4l2-chip-ident.h | 3 +++
 2 files changed, 12 insertions(+)

(limited to 'include')

diff --git a/drivers/media/video/saa6588.c b/drivers/media/video/saa6588.c
index 4d31c320ac17..5f4e9858cb9d 100644
--- a/drivers/media/video/saa6588.c
+++ b/drivers/media/video/saa6588.c
@@ -33,6 +33,7 @@
 
 #include <media/rds.h>
 #include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 /* Addresses to scan */
@@ -431,6 +432,13 @@ static long saa6588_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
 	return 0;
 }
 
+static int saa6588_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA6588, 0);
+}
+
 static int saa6588_command(struct i2c_client *client, unsigned cmd, void *arg)
 {
 	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
@@ -439,6 +447,7 @@ static int saa6588_command(struct i2c_client *client, unsigned cmd, void *arg)
 /* ----------------------------------------------------------------------- */
 
 static const struct v4l2_subdev_core_ops saa6588_core_ops = {
+	.g_chip_ident = saa6588_g_chip_ident,
 	.ioctl = saa6588_ioctl,
 };
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index 4e2182e52a8e..bbe2bb6a596a 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -92,6 +92,9 @@ enum {
 	/* module tea6420: just ident 6420 */
 	V4L2_IDENT_TEA6420 = 6420,
 
+	/* module saa6588: just ident 6588 */
+	V4L2_IDENT_SAA6588 = 6588,
+
 	/* module saa6752hs: reserved range 6750-6759 */
 	V4L2_IDENT_SAA6752HS = 6752,
 	V4L2_IDENT_SAA6752HS_AC3 = 6753,
-- 
cgit v1.2.3


From 1b6f1d9603a46a73ceed8daf7a3285559727fec3 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 13 Feb 2009 07:48:21 -0300
Subject: V4L/DVB (10542): v4l2-subdev: add querystd and g_input_status

In order to convert the v4l1 zoran and vino i2c drivers to v4l2 these
extra ops are required.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/v4l2-subdev.c | 4 ++++
 include/media/v4l2-common.h       | 3 +++
 include/media/v4l2-subdev.h       | 2 ++
 3 files changed, 9 insertions(+)

(limited to 'include')

diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c
index 158bc55de166..923ec8d01991 100644
--- a/drivers/media/video/v4l2-subdev.c
+++ b/drivers/media/video/v4l2-subdev.c
@@ -104,6 +104,10 @@ int v4l2_subdev_command(struct v4l2_subdev *sd, unsigned cmd, void *arg)
 		return v4l2_subdev_call(sd, video, g_fmt, arg);
 	case VIDIOC_INT_S_STD_OUTPUT:
 		return v4l2_subdev_call(sd, video, s_std_output, *(v4l2_std_id *)arg);
+	case VIDIOC_QUERYSTD:
+		return v4l2_subdev_call(sd, video, querystd, arg);
+	case VIDIOC_INT_G_INPUT_STATUS:
+		return v4l2_subdev_call(sd, video, g_input_status, arg);
 	case VIDIOC_STREAMON:
 		return v4l2_subdev_call(sd, video, s_stream, 1);
 	case VIDIOC_STREAMOFF:
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 0f864f8daaf2..1637cc302697 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -297,4 +297,7 @@ struct v4l2_crystal_freq {
    a v4l2_gpio struct if a direction is also needed. */
 #define VIDIOC_INT_S_GPIO		_IOW('d', 117, u32)
 
+/* Get input status. Same as the status field in the v4l2_input struct. */
+#define VIDIOC_INT_G_INPUT_STATUS	_IOR('d', 118, u32)
+
 #endif /* V4L2_COMMON_H_ */
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 9c1663d91224..cd640c6f039b 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -115,6 +115,8 @@ struct v4l2_subdev_video_ops {
 	int (*g_vbi_data)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_data *vbi_data);
 	int (*g_sliced_vbi_cap)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_cap *cap);
 	int (*s_std_output)(struct v4l2_subdev *sd, v4l2_std_id std);
+	int (*querystd)(struct v4l2_subdev *sd, v4l2_std_id *std);
+	int (*g_input_status)(struct v4l2_subdev *sd, u32 *status);
 	int (*s_stream)(struct v4l2_subdev *sd, int enable);
 	int (*s_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
 	int (*g_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
-- 
cgit v1.2.3


From 2ba588942c45a03a29a7a097e62bf0beceddb0e8 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 13 Feb 2009 10:57:48 -0300
Subject: V4L/DVB (10544): v4l2-common: add comments warning that about the
 sort order

Control arrays as are used with v4l2_ctrl_next must be sorted from
low to high. Add a comment at the top of all such arrays to warn
about this.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/cx18/cx18-controls.c      | 1 +
 drivers/media/video/cx2341x.c                 | 1 +
 drivers/media/video/cx23885/cx23885-video.c   | 1 +
 drivers/media/video/cx88/cx88-video.c         | 1 +
 drivers/media/video/ivtv/ivtv-controls.c      | 1 +
 drivers/media/video/saa7134/saa7134-empress.c | 2 ++
 drivers/media/video/v4l2-common.c             | 2 +-
 include/media/v4l2-common.h                   | 5 +++++
 8 files changed, 13 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/media/video/cx18/cx18-controls.c b/drivers/media/video/cx18/cx18-controls.c
index 6af4d5c190e1..10a4e07b7aca 100644
--- a/drivers/media/video/cx18/cx18-controls.c
+++ b/drivers/media/video/cx18/cx18-controls.c
@@ -30,6 +30,7 @@
 #include "cx18-mailbox.h"
 #include "cx18-controls.h"
 
+/* Must be sorted from low to high control ID! */
 static const u32 user_ctrls[] = {
 	V4L2_CID_USER_CLASS,
 	V4L2_CID_BRIGHTNESS,
diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c
index 4d09078c13b9..b36f522d2c55 100644
--- a/drivers/media/video/cx2341x.c
+++ b/drivers/media/video/cx2341x.c
@@ -38,6 +38,7 @@ static int debug;
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
+/* Must be sorted from low to high control ID! */
 const u32 cx2341x_mpeg_ctrls[] = {
 	V4L2_CID_MPEG_CLASS,
 	V4L2_CID_MPEG_STREAM_TYPE,
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c
index eaa11893bfe9..c2ed2505b725 100644
--- a/drivers/media/video/cx23885/cx23885-video.c
+++ b/drivers/media/video/cx23885/cx23885-video.c
@@ -244,6 +244,7 @@ static struct cx23885_ctrl cx23885_ctls[] = {
 };
 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 
+/* Must be sorted from low to high control ID! */
 static const u32 cx23885_user_ctrls[] = {
 	V4L2_CID_USER_CLASS,
 	V4L2_CID_BRIGHTNESS,
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index 791e69d804f9..5ed1c5a52cdd 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -298,6 +298,7 @@ static struct cx88_ctrl cx8800_ctls[] = {
 };
 static const int CX8800_CTLS = ARRAY_SIZE(cx8800_ctls);
 
+/* Must be sorted from low to high control ID! */
 const u32 cx88_user_ctrls[] = {
 	V4L2_CID_USER_CLASS,
 	V4L2_CID_BRIGHTNESS,
diff --git a/drivers/media/video/ivtv/ivtv-controls.c b/drivers/media/video/ivtv/ivtv-controls.c
index 62aa06f5d168..84995bcf4a75 100644
--- a/drivers/media/video/ivtv/ivtv-controls.c
+++ b/drivers/media/video/ivtv/ivtv-controls.c
@@ -26,6 +26,7 @@
 #include "ivtv-mailbox.h"
 #include "ivtv-controls.h"
 
+/* Must be sorted from low to high control ID! */
 static const u32 user_ctrls[] = {
 	V4L2_CID_USER_CLASS,
 	V4L2_CID_BRIGHTNESS,
diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index d9d9607044a7..2e15bb7c3f0a 100644
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -352,6 +352,7 @@ static int empress_s_ctrl(struct file *file, void *priv,
 static int empress_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *c)
 {
+	/* Must be sorted from low to high control ID! */
 	static const u32 user_ctrls[] = {
 		V4L2_CID_USER_CLASS,
 		V4L2_CID_BRIGHTNESS,
@@ -364,6 +365,7 @@ static int empress_queryctrl(struct file *file, void *priv,
 		0
 	};
 
+	/* Must be sorted from low to high control ID! */
 	static const u32 mpeg_ctrls[] = {
 		V4L2_CID_MPEG_CLASS,
 		V4L2_CID_MPEG_STREAM_TYPE,
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 26e162f13f7f..7086f9f3c785 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -749,7 +749,7 @@ EXPORT_SYMBOL(v4l2_ctrl_query_menu_valid_items);
 /* ctrl_classes points to an array of u32 pointers, the last element is
    a NULL pointer. Each u32 array is a 0-terminated array of control IDs.
    Each array must be sorted low to high and belong to the same control
-   class. The array of u32 pointer must also be sorted, from low class IDs
+   class. The array of u32 pointers must also be sorted, from low class IDs
    to high class IDs.
 
    This function returns the first ID that follows after the given ID.
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 1637cc302697..de785da4564c 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -107,6 +107,11 @@ int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu,
 		struct v4l2_queryctrl *qctrl, const char **menu_items);
 #define V4L2_CTRL_MENU_IDS_END (0xffffffff)
 int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids);
+
+/* Note: ctrl_classes points to an array of u32 pointers. Each u32 array is a
+   0-terminated array of control IDs. Each array must be sorted low to high
+   and belong to the same control class. The array of u32 pointers must also
+   be sorted, from low class IDs to high class IDs. */
 u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id);
 
 /* ------------------------------------------------------------------------- */
-- 
cgit v1.2.3


From 2c32cc0c1f54d62c7e9ab81d1c1a3aa5b9efd73d Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Tue, 20 Jan 2009 18:34:43 -0300
Subject: V4L/DVB (10575): V4L2: Add COLORFX user control

This is a common feature on many cameras. the options are:
Default colors,
B & W,
Sepia

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/linux/videodev2.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 74aea975b305..c64e76a087b4 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -880,8 +880,15 @@ enum v4l2_power_line_frequency {
 #define V4L2_CID_BACKLIGHT_COMPENSATION 	(V4L2_CID_BASE+28)
 #define V4L2_CID_CHROMA_AGC                     (V4L2_CID_BASE+29)
 #define V4L2_CID_COLOR_KILLER                   (V4L2_CID_BASE+30)
+#define V4L2_CID_COLORFX			(V4L2_CID_BASE+31)
+enum v4l2_colorfx {
+	V4L2_COLORFX_NONE	= 0,
+	V4L2_COLORFX_BW		= 1,
+	V4L2_COLORFX_SEPIA	= 2,
+};
+
 /* last CID + 1 */
-#define V4L2_CID_LASTP1                         (V4L2_CID_BASE+31)
+#define V4L2_CID_LASTP1                         (V4L2_CID_BASE+32)
 
 /*  MPEG-class control IDs defined by V4L2 */
 #define V4L2_CID_MPEG_BASE 			(V4L2_CTRL_CLASS_MPEG | 0x900)
-- 
cgit v1.2.3


From cb3bf504f7c875070d56e84ce1e28aff8c3b6790 Mon Sep 17 00:00:00 2001
From: Oldřich Jedli�ka <oldium.pro@seznam.cz>
Date: Thu, 12 Feb 2009 03:43:11 -0300
Subject: V4L/DVB (10632): Added support for AVerMedia Cardbus Hybrid remote
 control
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Added support for I2C device at address 0x40 and subaddress 0x0d/0x0b
that provides remote control key reading support for AVerMedia Cardbus
Hybrid card, possibly for other AVerMedia Cardbus cards.

The I2C address 0x40 doesn't like the SAA7134's 0xfd quirk, so it was
disabled.

[mchehab@redhat.com: CodingStyle fixes]
Signed-off-by: Oldřich Jedli�ka <oldium.pro@seznam.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/common/ir-keymaps.c           | 59 ++++++++++++++++++++++++++
 drivers/media/video/ir-kbd-i2c.c            | 64 +++++++++++++++++++++++++++++
 drivers/media/video/saa7134/saa7134-cards.c |  5 +++
 drivers/media/video/saa7134/saa7134-i2c.c   |  2 +-
 include/media/ir-common.h                   |  1 +
 5 files changed, 130 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/media/common/ir-keymaps.c b/drivers/media/common/ir-keymaps.c
index d7b205472e1c..97e78f71c60d 100644
--- a/drivers/media/common/ir-keymaps.c
+++ b/drivers/media/common/ir-keymaps.c
@@ -153,6 +153,65 @@ IR_KEYTAB_TYPE ir_codes_avermedia_m135a[IR_KEYTAB_SIZE] = {
 };
 EXPORT_SYMBOL_GPL(ir_codes_avermedia_m135a);
 
+/* Oldrich Jedlicka <oldium.pro@seznam.cz> */
+IR_KEYTAB_TYPE ir_codes_avermedia_cardbus[IR_KEYTAB_SIZE] = {
+	[0x00] = KEY_POWER,
+	[0x01] = KEY_TUNER,		/* TV/FM */
+	[0x03] = KEY_TEXT,		/* Teletext */
+	[0x04] = KEY_EPG,
+	[0x05] = KEY_1,
+	[0x06] = KEY_2,
+	[0x07] = KEY_3,
+	[0x08] = KEY_AUDIO,
+	[0x09] = KEY_4,
+	[0x0a] = KEY_5,
+	[0x0b] = KEY_6,
+	[0x0c] = KEY_ZOOM,		/* Full screen */
+	[0x0d] = KEY_7,
+	[0x0e] = KEY_8,
+	[0x0f] = KEY_9,
+	[0x10] = KEY_PAGEUP,		/* 16-CH PREV */
+	[0x11] = KEY_0,
+	[0x12] = KEY_INFO,
+	[0x13] = KEY_AGAIN,		/* CH RTN - channel return */
+	[0x14] = KEY_MUTE,
+	[0x15] = KEY_EDIT,		/* Autoscan */
+	[0x17] = KEY_SAVE,		/* Screenshot */
+	[0x18] = KEY_PLAYPAUSE,
+	[0x19] = KEY_RECORD,
+	[0x1a] = KEY_PLAY,
+	[0x1b] = KEY_STOP,
+	[0x1c] = KEY_FASTFORWARD,
+	[0x1d] = KEY_REWIND,
+	[0x1e] = KEY_VOLUMEDOWN,
+	[0x1f] = KEY_VOLUMEUP,
+	[0x22] = KEY_SLEEP,		/* Sleep */
+	[0x23] = KEY_ZOOM,		/* Aspect */
+	[0x26] = KEY_SCREEN,		/* Pos */
+	[0x27] = KEY_ANGLE,		/* Size */
+	[0x28] = KEY_SELECT,		/* Select */
+	[0x29] = KEY_BLUE,		/* Blue/Picture */
+	[0x2a] = KEY_BACKSPACE,	/* Back */
+	[0x2b] = KEY_MEDIA,		/* PIP (Picture-in-picture) */
+	[0x2c] = KEY_DOWN,
+	[0x2e] = KEY_DOT,
+	[0x2f] = KEY_TV,		/* Live TV */
+	[0x32] = KEY_LEFT,
+	[0x33] = KEY_CLEAR,		/* Clear */
+	[0x35] = KEY_RED,		/* Red/TV */
+	[0x36] = KEY_UP,
+	[0x37] = KEY_HOME,		/* Home */
+	[0x39] = KEY_GREEN,		/* Green/Video */
+	[0x3d] = KEY_YELLOW,		/* Yellow/Music */
+	[0x3e] = KEY_OK,		/* Ok */
+	[0x3f] = KEY_RIGHT,
+	[0x40] = KEY_NEXT,		/* Next */
+	[0x41] = KEY_PREVIOUS,	/* Previous */
+	[0x42] = KEY_CHANNELDOWN,	/* Channel down */
+	[0x43] = KEY_CHANNELUP	/* Channel up */
+};
+EXPORT_SYMBOL_GPL(ir_codes_avermedia_cardbus);
+
 /* Attila Kondoros <attila.kondoros@chello.hu> */
 IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE] = {
 
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
index d4658c56eddc..2ee49b7ddcf0 100644
--- a/drivers/media/video/ir-kbd-i2c.c
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -16,6 +16,8 @@
  *      Henry Wong <henry@stuffedcow.net>
  *      Mark Schultz <n9xmj@yahoo.com>
  *      Brian Rogers <brian_rogers@comcast.net>
+ * modified for AVerMedia Cardbus by
+ *      Oldrich Jedlicka <oldium.pro@seznam.cz>
  *
  *  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
@@ -216,6 +218,46 @@ static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 	return 1;
 }
 
+static int get_key_avermedia_cardbus(struct IR_i2c *ir,
+				     u32 *ir_key, u32 *ir_raw)
+{
+	unsigned char subaddr, key, keygroup;
+	struct i2c_msg msg[] = { { .addr = ir->c.addr, .flags = 0,
+				   .buf = &subaddr, .len = 1},
+				 { .addr = ir->c.addr, .flags = I2C_M_RD,
+				  .buf = &key, .len = 1} };
+	subaddr = 0x0d;
+	if (2 != i2c_transfer(ir->c.adapter, msg, 2)) {
+		dprintk(1, "read error\n");
+		return -EIO;
+	}
+
+	if (key == 0xff)
+		return 0;
+
+	subaddr = 0x0b;
+	msg[1].buf = &keygroup;
+	if (2 != i2c_transfer(ir->c.adapter, msg, 2)) {
+		dprintk(1, "read error\n");
+		return -EIO;
+	}
+
+	if (keygroup == 0xff)
+		return 0;
+
+	dprintk(1, "read key 0x%02x/0x%02x\n", key, keygroup);
+	if (keygroup < 2 || keygroup > 3) {
+		/* Only a warning */
+		dprintk(1, "warning: invalid key group 0x%02x for key 0x%02x\n",
+								keygroup, key);
+	}
+	key |= (keygroup & 1) << 6;
+
+	*ir_key = key;
+	*ir_raw = key;
+	return 1;
+}
+
 /* ----------------------------------------------------------------------- */
 
 static void ir_key_poll(struct IR_i2c *ir)
@@ -360,6 +402,12 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
 			ir_type     = IR_TYPE_OTHER;
 		}
 		break;
+	case 0x40:
+		name        = "AVerMedia Cardbus remote";
+		ir->get_key = get_key_avermedia_cardbus;
+		ir_type     = IR_TYPE_OTHER;
+		ir_codes    = ir_codes_avermedia_cardbus;
+		break;
 	default:
 		/* shouldn't happen */
 		printk(DEVNAME ": Huh? unknown i2c address (0x%02x)?\n", addr);
@@ -524,6 +572,22 @@ static int ir_probe(struct i2c_adapter *adap)
 			ir_attach(adap, msg.addr, 0, 0);
 	}
 
+	/* Special case for AVerMedia Cardbus remote */
+	if (adap->id == I2C_HW_SAA7134) {
+		unsigned char subaddr, data;
+		struct i2c_msg msg[] = { { .addr = 0x40, .flags = 0,
+					   .buf = &subaddr, .len = 1},
+					 { .addr = 0x40, .flags = I2C_M_RD,
+					   .buf = &data, .len = 1} };
+		subaddr = 0x0d;
+		rc = i2c_transfer(adap, msg, 2);
+		dprintk(1, "probe 0x%02x/0x%02x @ %s: %s\n",
+			msg[0].addr, subaddr, adap->name,
+			(2 == rc) ? "yes" : "no");
+		if (2 == rc)
+			ir_attach(adap, msg[0].addr, 0, 0);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c
index 107f6d30d007..67c223cc867f 100644
--- a/drivers/media/video/saa7134/saa7134-cards.c
+++ b/drivers/media/video/saa7134/saa7134-cards.c
@@ -6019,6 +6019,11 @@ int saa7134_board_init1(struct saa7134_dev *dev)
 		msleep(10);
 		break;
 	case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
+		saa7134_set_gpio(dev, 23, 0);
+		msleep(10);
+		saa7134_set_gpio(dev, 23, 1);
+		dev->has_remote = SAA7134_REMOTE_I2C;
+		break;
 	case SAA7134_BOARD_AVERMEDIA_M103:
 		saa7134_set_gpio(dev, 23, 0);
 		msleep(10);
diff --git a/drivers/media/video/saa7134/saa7134-i2c.c b/drivers/media/video/saa7134/saa7134-i2c.c
index 2e15f43d26ec..f3e285aa2fb4 100644
--- a/drivers/media/video/saa7134/saa7134-i2c.c
+++ b/drivers/media/video/saa7134/saa7134-i2c.c
@@ -255,7 +255,7 @@ static int saa7134_i2c_xfer(struct i2c_adapter *i2c_adap,
 			addr  = msgs[i].addr << 1;
 			if (msgs[i].flags & I2C_M_RD)
 				addr |= 1;
-			if (i > 0 && msgs[i].flags & I2C_M_RD) {
+			if (i > 0 && msgs[i].flags & I2C_M_RD && msgs[i].addr != 0x40) {
 				/* workaround for a saa7134 i2c bug
 				 * needed to talk to the mt352 demux
 				 * thanks to pinnacle for the hint */
diff --git a/include/media/ir-common.h b/include/media/ir-common.h
index 31e62abb59ad..135e02270c9b 100644
--- a/include/media/ir-common.h
+++ b/include/media/ir-common.h
@@ -111,6 +111,7 @@ extern IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_avermedia_dvbt[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_avermedia_m135a[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_avermedia_cardbus[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_pixelview_new[IR_KEYTAB_SIZE];
-- 
cgit v1.2.3


From 3a63e4492fbc7aa7f99d4368822da1382ec6fe03 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 14 Feb 2009 11:54:23 -0300
Subject: V4L/DVB (10643): v4l2-device: allow a NULL parent device when
 registering.

Some drivers (e.g. for ISA devices) have no parent device because there
is no associated bus driver. Allow the parent device to be NULL in
those cases when registering v4l2_device.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 Documentation/video4linux/v4l2-framework.txt | 10 +++++---
 drivers/media/video/v4l2-device.c            | 37 ++++++++++++++++++----------
 include/media/v4l2-device.h                  | 31 +++++++++++++----------
 3 files changed, 48 insertions(+), 30 deletions(-)

(limited to 'include')

diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt
index 48cdf86248cb..e1620e2a38ff 100644
--- a/Documentation/video4linux/v4l2-framework.txt
+++ b/Documentation/video4linux/v4l2-framework.txt
@@ -84,12 +84,14 @@ You must register the device instance:
 	v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev);
 
 Registration will initialize the v4l2_device struct and link dev->driver_data
-to v4l2_dev. Registration will also set v4l2_dev->name to a value derived from
-dev (driver name followed by the bus_id, to be precise). You may change the
-name after registration if you want.
+to v4l2_dev. If v4l2_dev->name is empty then it will be set to a value derived
+from dev (driver name followed by the bus_id, to be precise). If you set it
+up before calling v4l2_device_register then it will be untouched. If dev is
+NULL, then you *must* setup v4l2_dev->name before calling v4l2_device_register.
 
 The first 'dev' argument is normally the struct device pointer of a pci_dev,
-usb_device or platform_device.
+usb_device or platform_device. It is rare for dev to be NULL, but it happens
+with ISA devices, for example.
 
 You unregister with:
 
diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c
index 8a4b74f3129f..3330ffb7d010 100644
--- a/drivers/media/video/v4l2-device.c
+++ b/drivers/media/video/v4l2-device.c
@@ -26,15 +26,24 @@
 
 int v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev)
 {
-	if (dev == NULL || v4l2_dev == NULL)
+	if (v4l2_dev == NULL)
 		return -EINVAL;
-	/* Warn if we apparently re-register a device */
-	WARN_ON(dev_get_drvdata(dev) != NULL);
+
 	INIT_LIST_HEAD(&v4l2_dev->subdevs);
 	spin_lock_init(&v4l2_dev->lock);
 	v4l2_dev->dev = dev;
-	snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), "%s %s",
+	if (dev == NULL) {
+		/* If dev == NULL, then name must be filled in by the caller */
+		WARN_ON(!v4l2_dev->name[0]);
+		return 0;
+	}
+
+	/* Set name to driver name + device name if it is empty. */
+	if (!v4l2_dev->name[0])
+		snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), "%s %s",
 			dev->driver->name, dev_name(dev));
+	if (dev_get_drvdata(dev))
+		v4l2_warn(v4l2_dev, "Non-NULL drvdata on register\n");
 	dev_set_drvdata(dev, v4l2_dev);
 	return 0;
 }
@@ -44,10 +53,11 @@ void v4l2_device_unregister(struct v4l2_device *v4l2_dev)
 {
 	struct v4l2_subdev *sd, *next;
 
-	if (v4l2_dev == NULL || v4l2_dev->dev == NULL)
+	if (v4l2_dev == NULL)
 		return;
-	dev_set_drvdata(v4l2_dev->dev, NULL);
-	/* unregister subdevs */
+	if (v4l2_dev->dev)
+		dev_set_drvdata(v4l2_dev->dev, NULL);
+	/* Unregister subdevs */
 	list_for_each_entry_safe(sd, next, &v4l2_dev->subdevs, list)
 		v4l2_device_unregister_subdev(sd);
 
@@ -55,19 +65,20 @@ void v4l2_device_unregister(struct v4l2_device *v4l2_dev)
 }
 EXPORT_SYMBOL_GPL(v4l2_device_unregister);
 
-int v4l2_device_register_subdev(struct v4l2_device *dev, struct v4l2_subdev *sd)
+int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev,
+						struct v4l2_subdev *sd)
 {
 	/* Check for valid input */
-	if (dev == NULL || sd == NULL || !sd->name[0])
+	if (v4l2_dev == NULL || sd == NULL || !sd->name[0])
 		return -EINVAL;
 	/* Warn if we apparently re-register a subdev */
 	WARN_ON(sd->dev != NULL);
 	if (!try_module_get(sd->owner))
 		return -ENODEV;
-	sd->dev = dev;
-	spin_lock(&dev->lock);
-	list_add_tail(&sd->list, &dev->subdevs);
-	spin_unlock(&dev->lock);
+	sd->dev = v4l2_dev;
+	spin_lock(&v4l2_dev->lock);
+	list_add_tail(&sd->list, &v4l2_dev->subdevs);
+	spin_unlock(&v4l2_dev->lock);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(v4l2_device_register_subdev);
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 55e41afd95ef..5d7146dc2913 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -33,7 +33,9 @@
 #define V4L2_DEVICE_NAME_SIZE (BUS_ID_SIZE + 16)
 
 struct v4l2_device {
-	/* dev->driver_data points to this struct */
+	/* dev->driver_data points to this struct.
+	   Note: dev might be NULL if there is no parent device
+	   as is the case with e.g. ISA devices. */
 	struct device *dev;
 	/* used to keep track of the registered subdevs */
 	struct list_head subdevs;
@@ -44,7 +46,9 @@ struct v4l2_device {
 	char name[V4L2_DEVICE_NAME_SIZE];
 };
 
-/* Initialize v4l2_dev and make dev->driver_data point to v4l2_dev */
+/* Initialize v4l2_dev and make dev->driver_data point to v4l2_dev.
+   dev may be NULL in rare cases (ISA devices). In that case you
+   must fill in the v4l2_dev->name field before calling this function. */
 int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev);
 /* Set v4l2_dev->dev->driver_data to NULL and unregister all sub-devices */
 void v4l2_device_unregister(struct v4l2_device *v4l2_dev);
@@ -52,23 +56,24 @@ void v4l2_device_unregister(struct v4l2_device *v4l2_dev);
 /* Register a subdev with a v4l2 device. While registered the subdev module
    is marked as in-use. An error is returned if the module is no longer
    loaded when you attempt to register it. */
-int __must_check v4l2_device_register_subdev(struct v4l2_device *dev, struct v4l2_subdev *sd);
+int __must_check v4l2_device_register_subdev(struct v4l2_device *v4l2_dev,
+						struct v4l2_subdev *sd);
 /* Unregister a subdev with a v4l2 device. Can also be called if the subdev
    wasn't registered. In that case it will do nothing. */
 void v4l2_device_unregister_subdev(struct v4l2_subdev *sd);
 
 /* Iterate over all subdevs. */
-#define v4l2_device_for_each_subdev(sd, dev)				\
-	list_for_each_entry(sd, &(dev)->subdevs, list)
+#define v4l2_device_for_each_subdev(sd, v4l2_dev)			\
+	list_for_each_entry(sd, &(v4l2_dev)->subdevs, list)
 
 /* Call the specified callback for all subdevs matching the condition.
    Ignore any errors. Note that you cannot add or delete a subdev
    while walking the subdevs list. */
-#define __v4l2_device_call_subdevs(dev, cond, o, f, args...) 		\
+#define __v4l2_device_call_subdevs(v4l2_dev, cond, o, f, args...) 	\
 	do { 								\
 		struct v4l2_subdev *sd; 				\
 									\
-		list_for_each_entry(sd, &(dev)->subdevs, list)   	\
+		list_for_each_entry(sd, &(v4l2_dev)->subdevs, list)   	\
 			if ((cond) && sd->ops->o && sd->ops->o->f) 	\
 				sd->ops->o->f(sd , ##args); 		\
 	} while (0)
@@ -77,12 +82,12 @@ void v4l2_device_unregister_subdev(struct v4l2_subdev *sd);
    If the callback returns an error other than 0 or -ENOIOCTLCMD, then
    return with that error code. Note that you cannot add or delete a
    subdev while walking the subdevs list. */
-#define __v4l2_device_call_subdevs_until_err(dev, cond, o, f, args...)  \
+#define __v4l2_device_call_subdevs_until_err(v4l2_dev, cond, o, f, args...) \
 ({ 									\
 	struct v4l2_subdev *sd; 					\
 	long err = 0; 							\
 									\
-	list_for_each_entry(sd, &(dev)->subdevs, list) { 		\
+	list_for_each_entry(sd, &(v4l2_dev)->subdevs, list) { 		\
 		if ((cond) && sd->ops->o && sd->ops->o->f) 		\
 			err = sd->ops->o->f(sd , ##args); 		\
 		if (err && err != -ENOIOCTLCMD)				\
@@ -94,16 +99,16 @@ void v4l2_device_unregister_subdev(struct v4l2_subdev *sd);
 /* Call the specified callback for all subdevs matching grp_id (if 0, then
    match them all). Ignore any errors. Note that you cannot add or delete
    a subdev while walking the subdevs list. */
-#define v4l2_device_call_all(dev, grpid, o, f, args...) 		\
-	__v4l2_device_call_subdevs(dev, 				\
+#define v4l2_device_call_all(v4l2_dev, grpid, o, f, args...) 		\
+	__v4l2_device_call_subdevs(v4l2_dev, 				\
 			!(grpid) || sd->grp_id == (grpid), o, f , ##args)
 
 /* Call the specified callback for all subdevs matching grp_id (if 0, then
    match them all). If the callback returns an error other than 0 or
    -ENOIOCTLCMD, then return with that error code. Note that you cannot
    add or delete a subdev while walking the subdevs list. */
-#define v4l2_device_call_until_err(dev, grpid, o, f, args...) 		\
-	__v4l2_device_call_subdevs_until_err(dev,			\
+#define v4l2_device_call_until_err(v4l2_dev, grpid, o, f, args...) 	\
+	__v4l2_device_call_subdevs_until_err(v4l2_dev,			\
 		       !(grpid) || sd->grp_id == (grpid), o, f , ##args)
 
 #endif
-- 
cgit v1.2.3


From b01676005446ad51a32bb00577647c7aae7d2624 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 14 Feb 2009 12:00:53 -0300
Subject: V4L/DVB (10644): v4l2-subdev: rename dev field to v4l2_dev

Remain consistent in the naming: fields pointing to v4l2_device should
be called v4l2_dev. There are too many device-like entities without
adding to the confusion by mixing naming conventions.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 Documentation/video4linux/v4l2-framework.txt |  2 +-
 drivers/media/video/v4l2-device.c            | 12 ++++++------
 include/media/v4l2-subdev.h                  |  4 ++--
 3 files changed, 9 insertions(+), 9 deletions(-)

(limited to 'include')

diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt
index e1620e2a38ff..accc376e93cc 100644
--- a/Documentation/video4linux/v4l2-framework.txt
+++ b/Documentation/video4linux/v4l2-framework.txt
@@ -268,7 +268,7 @@ errors (except -ENOIOCTLCMD) occured, then 0 is returned.
 
 The second argument to both calls is a group ID. If 0, then all subdevs are
 called. If non-zero, then only those whose group ID match that value will
-be called. Before a bridge driver registers a subdev it can set subdev->grp_id
+be called. Before a bridge driver registers a subdev it can set sd->grp_id
 to whatever value it wants (it's 0 by default). This value is owned by the
 bridge driver and the sub-device driver will never modify or use it.
 
diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c
index 3330ffb7d010..b3dcb8454379 100644
--- a/drivers/media/video/v4l2-device.c
+++ b/drivers/media/video/v4l2-device.c
@@ -72,10 +72,10 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev,
 	if (v4l2_dev == NULL || sd == NULL || !sd->name[0])
 		return -EINVAL;
 	/* Warn if we apparently re-register a subdev */
-	WARN_ON(sd->dev != NULL);
+	WARN_ON(sd->v4l2_dev != NULL);
 	if (!try_module_get(sd->owner))
 		return -ENODEV;
-	sd->dev = v4l2_dev;
+	sd->v4l2_dev = v4l2_dev;
 	spin_lock(&v4l2_dev->lock);
 	list_add_tail(&sd->list, &v4l2_dev->subdevs);
 	spin_unlock(&v4l2_dev->lock);
@@ -86,12 +86,12 @@ EXPORT_SYMBOL_GPL(v4l2_device_register_subdev);
 void v4l2_device_unregister_subdev(struct v4l2_subdev *sd)
 {
 	/* return if it isn't registered */
-	if (sd == NULL || sd->dev == NULL)
+	if (sd == NULL || sd->v4l2_dev == NULL)
 		return;
-	spin_lock(&sd->dev->lock);
+	spin_lock(&sd->v4l2_dev->lock);
 	list_del(&sd->list);
-	spin_unlock(&sd->dev->lock);
-	sd->dev = NULL;
+	spin_unlock(&sd->v4l2_dev->lock);
+	sd->v4l2_dev = NULL;
 	module_put(sd->owner);
 }
 EXPORT_SYMBOL_GPL(v4l2_device_unregister_subdev);
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index cd640c6f039b..05b69652e6c4 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -137,7 +137,7 @@ struct v4l2_subdev_ops {
 struct v4l2_subdev {
 	struct list_head list;
 	struct module *owner;
-	struct v4l2_device *dev;
+	struct v4l2_device *v4l2_dev;
 	const struct v4l2_subdev_ops *ops;
 	/* name must be unique */
 	char name[V4L2_SUBDEV_NAME_SIZE];
@@ -176,7 +176,7 @@ static inline void v4l2_subdev_init(struct v4l2_subdev *sd,
 	/* ops->core MUST be set */
 	BUG_ON(!ops || !ops->core);
 	sd->ops = ops;
-	sd->dev = NULL;
+	sd->v4l2_dev = NULL;
 	sd->name[0] = '\0';
 	sd->grp_id = 0;
 	sd->priv = NULL;
-- 
cgit v1.2.3


From 051489119affd527f2834e9f8ba3e2a71bf1ca23 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Date: Mon, 23 Feb 2009 12:12:58 -0300
Subject: V4L/DVB (10669): ov772x: Add image flip support

o ov772x_camera_info :: flags supports default image flip.
o V4L2_CID_VFLIP/HFLIP supports image flip for user side.
Thank Magnus for advice.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/ov772x.c | 88 ++++++++++++++++++++++++++++++++++++++++++--
 include/media/ov772x.h       |  5 +++
 2 files changed, 89 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c
index 6b18da7c3c0a..880e51f0e9fd 100644
--- a/drivers/media/video/ov772x.c
+++ b/drivers/media/video/ov772x.c
@@ -217,10 +217,11 @@
 #define OCAP_4x         0x03	/* 4x */
 
 /* COM3 */
-#define SWAP_MASK       0x38
+#define SWAP_MASK       (SWAP_RGB | SWAP_YUV | SWAP_ML)
+#define IMG_MASK        (VFLIP_IMG | HFLIP_IMG)
 
-#define VFIMG_ON_OFF    0x80	/* Vertical flip image ON/OFF selection */
-#define HMIMG_ON_OFF    0x40	/* Horizontal mirror image ON/OFF selection */
+#define VFLIP_IMG       0x80	/* Vertical flip image ON/OFF selection */
+#define HFLIP_IMG       0x40	/* Horizontal mirror image ON/OFF selection */
 #define SWAP_RGB        0x20	/* Swap B/R  output sequence in RGB mode */
 #define SWAP_YUV        0x10	/* Swap Y/UV output sequence in YUV mode */
 #define SWAP_ML         0x08	/* Swap output MSB/LSB */
@@ -395,6 +396,8 @@ struct ov772x_priv {
 	const struct ov772x_color_format *fmt;
 	const struct ov772x_win_size     *win;
 	int                               model;
+	unsigned int                      flag_vflip:1;
+	unsigned int                      flag_hflip:1;
 };
 
 #define ENDMARKER { 0xff, 0xff }
@@ -540,6 +543,27 @@ static const struct ov772x_win_size ov772x_win_qvga = {
 	.regs     = ov772x_qvga_regs,
 };
 
+static const struct v4l2_queryctrl ov772x_controls[] = {
+	{
+		.id		= V4L2_CID_VFLIP,
+		.type		= V4L2_CTRL_TYPE_BOOLEAN,
+		.name		= "Flip Vertically",
+		.minimum	= 0,
+		.maximum	= 1,
+		.step		= 1,
+		.default_value	= 0,
+	},
+	{
+		.id		= V4L2_CID_HFLIP,
+		.type		= V4L2_CTRL_TYPE_BOOLEAN,
+		.name		= "Flip Horizontally",
+		.minimum	= 0,
+		.maximum	= 1,
+		.step		= 1,
+		.default_value	= 0,
+	},
+};
+
 
 /*
  * general function
@@ -650,6 +674,49 @@ static unsigned long ov772x_query_bus_param(struct soc_camera_device *icd)
 	return soc_camera_apply_sensor_flags(icl, flags);
 }
 
+static int ov772x_get_control(struct soc_camera_device *icd,
+			      struct v4l2_control *ctrl)
+{
+	struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+
+	switch (ctrl->id) {
+	case V4L2_CID_VFLIP:
+		ctrl->value = priv->flag_vflip;
+		break;
+	case V4L2_CID_HFLIP:
+		ctrl->value = priv->flag_hflip;
+		break;
+	}
+	return 0;
+}
+
+static int ov772x_set_control(struct soc_camera_device *icd,
+			      struct v4l2_control *ctrl)
+{
+	struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+	int ret = 0;
+	u8 val;
+
+	switch (ctrl->id) {
+	case V4L2_CID_VFLIP:
+		val = ctrl->value ? VFLIP_IMG : 0x00;
+		priv->flag_vflip = ctrl->value;
+		if (priv->info->flags & OV772X_FLAG_VFLIP)
+			val ^= VFLIP_IMG;
+		ret = ov772x_mask_set(priv->client, COM3, VFLIP_IMG, val);
+		break;
+	case V4L2_CID_HFLIP:
+		val = ctrl->value ? HFLIP_IMG : 0x00;
+		priv->flag_hflip = ctrl->value;
+		if (priv->info->flags & OV772X_FLAG_HFLIP)
+			val ^= HFLIP_IMG;
+		ret = ov772x_mask_set(priv->client, COM3, HFLIP_IMG, val);
+		break;
+	}
+
+	return ret;
+}
+
 static int ov772x_get_chip_id(struct soc_camera_device *icd,
 			      struct v4l2_dbg_chip_ident   *id)
 {
@@ -768,8 +835,17 @@ static int ov772x_set_fmt(struct soc_camera_device *icd,
 	 * set COM3
 	 */
 	val = priv->fmt->com3;
+	if (priv->info->flags & OV772X_FLAG_VFLIP)
+		val |= VFLIP_IMG;
+	if (priv->info->flags & OV772X_FLAG_HFLIP)
+		val |= HFLIP_IMG;
+	if (priv->flag_vflip)
+		val ^= VFLIP_IMG;
+	if (priv->flag_hflip)
+		val ^= HFLIP_IMG;
+
 	ret = ov772x_mask_set(priv->client,
-			      COM3, SWAP_MASK, val);
+			      COM3, SWAP_MASK | IMG_MASK, val);
 	if (ret < 0)
 		goto ov772x_set_fmt_error;
 
@@ -887,6 +963,10 @@ static struct soc_camera_ops ov772x_ops = {
 	.try_fmt		= ov772x_try_fmt,
 	.set_bus_param		= ov772x_set_bus_param,
 	.query_bus_param	= ov772x_query_bus_param,
+	.controls		= ov772x_controls,
+	.num_controls		= ARRAY_SIZE(ov772x_controls),
+	.get_control		= ov772x_get_control,
+	.set_control		= ov772x_set_control,
 	.get_chip_id		= ov772x_get_chip_id,
 #ifdef CONFIG_VIDEO_ADV_DEBUG
 	.get_register		= ov772x_get_register,
diff --git a/include/media/ov772x.h b/include/media/ov772x.h
index e391d55edb95..57db48dd85b8 100644
--- a/include/media/ov772x.h
+++ b/include/media/ov772x.h
@@ -13,8 +13,13 @@
 
 #include <media/soc_camera.h>
 
+/* for flags */
+#define OV772X_FLAG_VFLIP     0x00000001 /* Vertical flip image */
+#define OV772X_FLAG_HFLIP     0x00000002 /* Horizontal flip image */
+
 struct ov772x_camera_info {
 	unsigned long          buswidth;
+	unsigned long          flags;
 	struct soc_camera_link link;
 };
 
-- 
cgit v1.2.3


From c354b400c0eac1cc0009958754797538857ce640 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Date: Mon, 23 Feb 2009 12:12:58 -0300
Subject: V4L/DVB (10671): sh_mobile_ceu: SOCAM flags are not platform
 dependent

sh_mobile_ceu_camera.c support for signal polarity flags isn't platform
dependent, provide them locally. Only the bus width is implementation
specific.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Acked-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/sh_mobile_ceu_camera.c | 28 ++++++++++++++++++++++++++--
 include/media/sh_mobile_ceu.h              |  5 +++--
 2 files changed, 29 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index ddcb81d0b81a..8a1badba70f7 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -101,6 +101,30 @@ struct sh_mobile_ceu_dev {
 	const struct soc_camera_data_format *camera_fmt;
 };
 
+static unsigned long make_bus_param(struct sh_mobile_ceu_dev *pcdev)
+{
+	unsigned long flags;
+
+	flags = SOCAM_MASTER |
+		SOCAM_PCLK_SAMPLE_RISING |
+		SOCAM_HSYNC_ACTIVE_HIGH |
+		SOCAM_HSYNC_ACTIVE_LOW |
+		SOCAM_VSYNC_ACTIVE_HIGH |
+		SOCAM_VSYNC_ACTIVE_LOW |
+		SOCAM_DATA_ACTIVE_HIGH;
+
+	if (pcdev->pdata->flags & SH_CEU_FLAG_USE_8BIT_BUS)
+		flags |= SOCAM_DATAWIDTH_8;
+
+	if (pcdev->pdata->flags & SH_CEU_FLAG_USE_16BIT_BUS)
+		flags |= SOCAM_DATAWIDTH_16;
+
+	if (flags & SOCAM_DATAWIDTH_MASK)
+		return flags;
+
+	return 0;
+}
+
 static void ceu_write(struct sh_mobile_ceu_dev *priv,
 		      unsigned long reg_offs, u32 data)
 {
@@ -396,7 +420,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
 
 	camera_flags = icd->ops->query_bus_param(icd);
 	common_flags = soc_camera_bus_param_compatible(camera_flags,
-						       pcdev->pdata->flags);
+						       make_bus_param(pcdev));
 	if (!common_flags)
 		return -EINVAL;
 
@@ -517,7 +541,7 @@ static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd)
 
 	camera_flags = icd->ops->query_bus_param(icd);
 	common_flags = soc_camera_bus_param_compatible(camera_flags,
-						       pcdev->pdata->flags);
+						       make_bus_param(pcdev));
 	if (!common_flags)
 		return -EINVAL;
 
diff --git a/include/media/sh_mobile_ceu.h b/include/media/sh_mobile_ceu.h
index b5dbefea3740..0f3524cff435 100644
--- a/include/media/sh_mobile_ceu.h
+++ b/include/media/sh_mobile_ceu.h
@@ -1,10 +1,11 @@
 #ifndef __ASM_SH_MOBILE_CEU_H__
 #define __ASM_SH_MOBILE_CEU_H__
 
-#include <media/soc_camera.h>
+#define SH_CEU_FLAG_USE_8BIT_BUS	(1 << 0) /* use  8bit bus width */
+#define SH_CEU_FLAG_USE_16BIT_BUS	(1 << 1) /* use 16bit bus width */
 
 struct sh_mobile_ceu_info {
-	unsigned long flags; /* SOCAM_... */
+	unsigned long flags;
 };
 
 #endif /* __ASM_SH_MOBILE_CEU_H__ */
-- 
cgit v1.2.3


From f7f41483bec8e8ddf3a6bd905b549d0a8d488fdb Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Mon, 23 Feb 2009 12:13:24 -0300
Subject: V4L/DVB (10675): soc-camera: extend soc_camera_bus_param_compatible
 with more tests

Add data signal polarity, mode, and bus-width tests to
soc_camera_bus_param_compatible().

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/media/soc_camera.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index 7440d9250665..c63a3409ffb7 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -239,15 +239,19 @@ static inline struct v4l2_queryctrl const *soc_camera_find_qctrl(
 static inline unsigned long soc_camera_bus_param_compatible(
 			unsigned long camera_flags, unsigned long bus_flags)
 {
-	unsigned long common_flags, hsync, vsync, pclk;
+	unsigned long common_flags, hsync, vsync, pclk, data, buswidth, mode;
 
 	common_flags = camera_flags & bus_flags;
 
 	hsync = common_flags & (SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW);
 	vsync = common_flags & (SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW);
 	pclk = common_flags & (SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING);
+	data = common_flags & (SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATA_ACTIVE_LOW);
+	mode = common_flags & (SOCAM_MASTER | SOCAM_SLAVE);
+	buswidth = common_flags & SOCAM_DATAWIDTH_MASK;
 
-	return (!hsync || !vsync || !pclk) ? 0 : common_flags;
+	return (!hsync || !vsync || !pclk || !data || !mode || !buswidth) ? 0 :
+		common_flags;
 }
 
 extern unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl,
-- 
cgit v1.2.3


From 1a367f3bc3a750b839c5711ecd0c9941e2c5aafa Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 20 Feb 2009 05:55:39 -0300
Subject: V4L/DVB (10686): v4l2: add V4L2_CTRL_FLAG_WRITE_ONLY flag.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/linux/videodev2.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index c64e76a087b4..11b8b3ec77b4 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -830,6 +830,7 @@ struct v4l2_querymenu {
 #define V4L2_CTRL_FLAG_UPDATE 		0x0008
 #define V4L2_CTRL_FLAG_INACTIVE 	0x0010
 #define V4L2_CTRL_FLAG_SLIDER 		0x0020
+#define V4L2_CTRL_FLAG_WRITE_ONLY 	0x0040
 
 /*  Query flag, to be ORed with the control ID */
 #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000
-- 
cgit v1.2.3


From ab373190813a2e89f9ab7338c6b106804611f2b7 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 21 Feb 2009 18:08:41 -0300
Subject: V4L/DVB (10691): v4l2-common: add v4l2_i2c_subdev_addr()

Add small function to retrieve the i2c address from a v4l2_subdev
pointer.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/v4l2-common.c | 9 +++++++++
 include/media/v4l2-common.h       | 2 ++
 2 files changed, 11 insertions(+)

(limited to 'include')

diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index bca4daf87a12..caa7ba0705a5 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -1022,6 +1022,15 @@ struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,
 }
 EXPORT_SYMBOL_GPL(v4l2_i2c_new_probed_subdev);
 
+/* Return i2c client address of v4l2_subdev. */
+unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return client ? client->addr : I2C_CLIENT_END;
+}
+EXPORT_SYMBOL_GPL(v4l2_i2c_subdev_addr);
+
 /* Return a list of I2C tuner addresses to probe. Use only if the tuner
    addresses are unknown. */
 const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type)
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index de785da4564c..7779d9c93ec8 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -154,6 +154,8 @@ struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,
 /* Initialize an v4l2_subdev with data from an i2c_client struct */
 void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
 		const struct v4l2_subdev_ops *ops);
+/* Return i2c client address of v4l2_subdev. */
+unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd);
 
 enum v4l2_i2c_tuner_type {
 	ADDRS_RADIO,	/* Radio tuner addresses */
-- 
cgit v1.2.3


From 10afbef15e7bba5e1008f583852077743d28c395 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 21 Feb 2009 18:47:24 -0300
Subject: V4L/DVB (10698): v4l2-common: remove v4l2_ctrl_query_fill_std

The v4l2_ctrl_query_fill_std() function wasn't one the best idea I ever had.
It doesn't add anything valuable that cannot be expressed equally well with
v4l2_ctrl_query_fill and only adds overhead.

Replace it with v4l2_ctrl_query_fill() everywhere it is used and remove it
from v4l2_common.c.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/cx18/cx18-av-core.c       |   7 +-
 drivers/media/video/cx2341x.c                 | 108 +++++++++++++++----
 drivers/media/video/cx25840/cx25840-core.c    |   7 +-
 drivers/media/video/msp3400-driver.c          |  26 ++---
 drivers/media/video/saa7115.c                 |   4 +-
 drivers/media/video/saa7134/saa6752hs.c       |  12 ++-
 drivers/media/video/saa7134/saa7134-empress.c |   2 +-
 drivers/media/video/tda7432.c                 |   6 +-
 drivers/media/video/tda9875.c                 |   3 +-
 drivers/media/video/tvaudio.c                 |  17 +--
 drivers/media/video/tvp514x.c                 |   5 +-
 drivers/media/video/v4l2-common.c             | 145 --------------------------
 include/media/v4l2-common.h                   |   1 -
 13 files changed, 141 insertions(+), 202 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c
index a3bd2c95f582..fc576cf1a8b5 100644
--- a/drivers/media/video/cx18/cx18-av-core.c
+++ b/drivers/media/video/cx18/cx18-av-core.c
@@ -788,10 +788,12 @@ int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg)
 
 		switch (qc->id) {
 		case V4L2_CID_BRIGHTNESS:
+			return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
 		case V4L2_CID_CONTRAST:
 		case V4L2_CID_SATURATION:
+			return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
 		case V4L2_CID_HUE:
-			return v4l2_ctrl_query_fill_std(qc);
+			return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
 		default:
 			break;
 		}
@@ -801,10 +803,11 @@ int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg)
 			return v4l2_ctrl_query_fill(qc, 0, 65535,
 				65535 / 100, state->default_volume);
 		case V4L2_CID_AUDIO_MUTE:
+			return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
 		case V4L2_CID_AUDIO_BALANCE:
 		case V4L2_CID_AUDIO_BASS:
 		case V4L2_CID_AUDIO_TREBLE:
-			return v4l2_ctrl_query_fill_std(qc);
+			return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
 		default:
 			return -EINVAL;
 		}
diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c
index b36f522d2c55..8ded52946334 100644
--- a/drivers/media/video/cx2341x.c
+++ b/drivers/media/video/cx2341x.c
@@ -500,6 +500,29 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 	int err;
 
 	switch (qctrl->id) {
+	case V4L2_CID_MPEG_STREAM_TYPE:
+		return v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
+				V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD, 1,
+				V4L2_MPEG_STREAM_TYPE_MPEG2_PS);
+
+	case V4L2_CID_MPEG_STREAM_VBI_FMT:
+		if (params->capabilities & CX2341X_CAP_HAS_SLICED_VBI)
+			return v4l2_ctrl_query_fill(qctrl,
+					V4L2_MPEG_STREAM_VBI_FMT_NONE,
+					V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1,
+					V4L2_MPEG_STREAM_VBI_FMT_NONE);
+		return cx2341x_ctrl_query_fill(qctrl,
+				V4L2_MPEG_STREAM_VBI_FMT_NONE,
+				V4L2_MPEG_STREAM_VBI_FMT_NONE, 1,
+				default_params.stream_vbi_fmt);
+
+	case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
+		return v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100,
+				V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000, 1,
+				V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000);
+
 	case V4L2_CID_MPEG_AUDIO_ENCODING:
 		if (params->capabilities & CX2341X_CAP_HAS_AC3) {
 			/*
@@ -531,9 +554,36 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 			qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
 		return 0;
 
-	case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
-	case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
-		return -EINVAL;
+	case V4L2_CID_MPEG_AUDIO_MODE:
+		return v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_AUDIO_MODE_STEREO,
+				V4L2_MPEG_AUDIO_MODE_MONO, 1,
+				V4L2_MPEG_AUDIO_MODE_STEREO);
+
+	case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
+		err = v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4,
+				V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16, 1,
+				V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4);
+		if (err == 0 &&
+		    params->audio_mode != V4L2_MPEG_AUDIO_MODE_JOINT_STEREO)
+			qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
+		return err;
+
+	case V4L2_CID_MPEG_AUDIO_EMPHASIS:
+		return v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_AUDIO_EMPHASIS_NONE,
+				V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17, 1,
+				V4L2_MPEG_AUDIO_EMPHASIS_NONE);
+
+	case V4L2_CID_MPEG_AUDIO_CRC:
+		return v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_AUDIO_CRC_NONE,
+				V4L2_MPEG_AUDIO_CRC_CRC16, 1,
+				V4L2_MPEG_AUDIO_CRC_NONE);
+
+	case V4L2_CID_MPEG_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
 
 	case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
 		err = v4l2_ctrl_query_fill(qctrl,
@@ -550,13 +600,6 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 			qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
 		return 0;
 
-	case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
-		err = v4l2_ctrl_query_fill_std(qctrl);
-		if (err == 0 &&
-		    params->audio_mode != V4L2_MPEG_AUDIO_MODE_JOINT_STEREO)
-			qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
-		return err;
-
 	case V4L2_CID_MPEG_VIDEO_ENCODING:
 		/* this setting is read-only for the cx2341x since the
 		   V4L2_CID_MPEG_STREAM_TYPE really determines the
@@ -569,32 +612,51 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 			qctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
 		return err;
 
+	case V4L2_CID_MPEG_VIDEO_ASPECT:
+		return v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_VIDEO_ASPECT_1x1,
+				V4L2_MPEG_VIDEO_ASPECT_221x100, 1,
+				V4L2_MPEG_VIDEO_ASPECT_4x3);
+
+	case V4L2_CID_MPEG_VIDEO_B_FRAMES:
+		return v4l2_ctrl_query_fill(qctrl, 0, 33, 1, 2);
+
+	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+		return v4l2_ctrl_query_fill(qctrl, 1, 34, 1,
+				params->is_50hz ? 12 : 15);
+
+	case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1);
+
 	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
-		err = v4l2_ctrl_query_fill_std(qctrl);
+		err = v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
+				V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
+				V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
 		if (err == 0 &&
 		    params->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1)
 			qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
 		return err;
 
+	case V4L2_CID_MPEG_VIDEO_BITRATE:
+		return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000);
+
 	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
-		err = v4l2_ctrl_query_fill_std(qctrl);
+		err = v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000);
 		if (err == 0 &&
 		    params->video_bitrate_mode ==
 				V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
 			qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
 		return err;
 
-	case V4L2_CID_MPEG_STREAM_VBI_FMT:
-		if (params->capabilities & CX2341X_CAP_HAS_SLICED_VBI)
-			return v4l2_ctrl_query_fill_std(qctrl);
-		return cx2341x_ctrl_query_fill(qctrl,
-				V4L2_MPEG_STREAM_VBI_FMT_NONE,
-				V4L2_MPEG_STREAM_VBI_FMT_NONE, 1,
-				default_params.stream_vbi_fmt);
+	case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION:
+		return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
 
-	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
-		return v4l2_ctrl_query_fill(qctrl, 1, 34, 1,
-				params->is_50hz ? 12 : 15);
+	case V4L2_CID_MPEG_VIDEO_MUTE:
+		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
+
+	case V4L2_CID_MPEG_VIDEO_MUTE_YUV:  /* Init YUV (really YCbCr) to black */
+		return v4l2_ctrl_query_fill(qctrl, 0, 0xffffff, 1, 0x008080);
 
 	/* CX23415/6 specific */
 	case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
@@ -696,7 +758,7 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
 				default_params.stream_insert_nav_packets);
 
 	default:
-		return v4l2_ctrl_query_fill_std(qctrl);
+		return -EINVAL;
 
 	}
 }
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c
index d4059ecaa58e..4a5d5ef9dfc7 100644
--- a/drivers/media/video/cx25840/cx25840-core.c
+++ b/drivers/media/video/cx25840/cx25840-core.c
@@ -1205,10 +1205,12 @@ static int cx25840_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 
 	switch (qc->id) {
 	case V4L2_CID_BRIGHTNESS:
+		return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
 	case V4L2_CID_CONTRAST:
 	case V4L2_CID_SATURATION:
+		return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
 	case V4L2_CID_HUE:
-		return v4l2_ctrl_query_fill_std(qc);
+		return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
 	default:
 		break;
 	}
@@ -1220,10 +1222,11 @@ static int cx25840_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 		return v4l2_ctrl_query_fill(qc, 0, 65535,
 				65535 / 100, state->default_volume);
 	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
 	case V4L2_CID_AUDIO_BALANCE:
 	case V4L2_CID_AUDIO_BASS:
 	case V4L2_CID_AUDIO_TREBLE:
-		return v4l2_ctrl_query_fill_std(qc);
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c
index 4d7a91852117..d972828d1cbe 100644
--- a/drivers/media/video/msp3400-driver.c
+++ b/drivers/media/video/msp3400-driver.c
@@ -713,22 +713,24 @@ static int msp_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 	struct msp_state *state = to_state(sd);
 
 	switch (qc->id) {
-		case V4L2_CID_AUDIO_VOLUME:
-		case V4L2_CID_AUDIO_MUTE:
-			return v4l2_ctrl_query_fill_std(qc);
-		default:
-			break;
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
+	default:
+		break;
 	}
 	if (!state->has_sound_processing)
 		return -EINVAL;
 	switch (qc->id) {
-		case V4L2_CID_AUDIO_LOUDNESS:
-		case V4L2_CID_AUDIO_BALANCE:
-		case V4L2_CID_AUDIO_BASS:
-		case V4L2_CID_AUDIO_TREBLE:
-			return v4l2_ctrl_query_fill_std(qc);
-		default:
-			return -EINVAL;
+	case V4L2_CID_AUDIO_LOUDNESS:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
+	case V4L2_CID_AUDIO_BALANCE:
+	case V4L2_CID_AUDIO_BASS:
+	case V4L2_CID_AUDIO_TREBLE:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
+	default:
+		return -EINVAL;
 	}
 	return 0;
 }
diff --git a/drivers/media/video/saa7115.c b/drivers/media/video/saa7115.c
index dd1943987ce6..a845582ca5d4 100644
--- a/drivers/media/video/saa7115.c
+++ b/drivers/media/video/saa7115.c
@@ -1206,10 +1206,12 @@ static int saa711x_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 {
 	switch (qc->id) {
 	case V4L2_CID_BRIGHTNESS:
+		return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
 	case V4L2_CID_CONTRAST:
 	case V4L2_CID_SATURATION:
+		return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
 	case V4L2_CID_HUE:
-		return v4l2_ctrl_query_fill_std(qc);
+		return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/media/video/saa7134/saa6752hs.c b/drivers/media/video/saa7134/saa6752hs.c
index 2d292ad776e9..dc2213e2f86e 100644
--- a/drivers/media/video/saa7134/saa6752hs.c
+++ b/drivers/media/video/saa7134/saa6752hs.c
@@ -592,7 +592,7 @@ static int saa6752hs_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc
 				V4L2_MPEG_VIDEO_ASPECT_4x3);
 
 	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
-		err = v4l2_ctrl_query_fill_std(qctrl);
+		err = v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000);
 		if (err == 0 &&
 		    params->vi_bitrate_mode ==
 				V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
@@ -606,12 +606,20 @@ static int saa6752hs_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc
 				V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
 
 	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+		return v4l2_ctrl_query_fill(qctrl,
+				V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
+				V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
+				V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
 	case V4L2_CID_MPEG_VIDEO_BITRATE:
+		return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000);
 	case V4L2_CID_MPEG_STREAM_PID_PMT:
+		return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 16);
 	case V4L2_CID_MPEG_STREAM_PID_AUDIO:
+		return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 260);
 	case V4L2_CID_MPEG_STREAM_PID_VIDEO:
+		return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 256);
 	case V4L2_CID_MPEG_STREAM_PID_PCR:
-		return v4l2_ctrl_query_fill_std(qctrl);
+		return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 259);
 
 	default:
 		break;
diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index 2e15bb7c3f0a..c6cfe0fe7e3d 100644
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -390,7 +390,7 @@ static int empress_queryctrl(struct file *file, void *priv,
 	if (c->id == 0)
 		return -EINVAL;
 	if (c->id == V4L2_CID_USER_CLASS || c->id == V4L2_CID_MPEG_CLASS)
-		return v4l2_ctrl_query_fill_std(c);
+		return v4l2_ctrl_query_fill(c, 0, 0, 0, 0);
 	if (V4L2_CTRL_ID2CLASS(c->id) != V4L2_CTRL_CLASS_MPEG)
 		return saa7134_queryctrl(file, priv, c);
 	return saa_call_empress(dev, core, queryctrl, c);
diff --git a/drivers/media/video/tda7432.c b/drivers/media/video/tda7432.c
index 2090e170bd9c..976ce207cfcb 100644
--- a/drivers/media/video/tda7432.c
+++ b/drivers/media/video/tda7432.c
@@ -421,12 +421,14 @@ static int tda7432_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 static int tda7432_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 {
 	switch (qc->id) {
-	case V4L2_CID_AUDIO_MUTE:
 	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
 	case V4L2_CID_AUDIO_BALANCE:
 	case V4L2_CID_AUDIO_BASS:
 	case V4L2_CID_AUDIO_TREBLE:
-		return v4l2_ctrl_query_fill_std(qc);
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
 	}
 	return -EINVAL;
 }
diff --git a/drivers/media/video/tda9875.c b/drivers/media/video/tda9875.c
index 19fbd18f4882..e71b2bd46612 100644
--- a/drivers/media/video/tda9875.c
+++ b/drivers/media/video/tda9875.c
@@ -313,9 +313,10 @@ static int tda9875_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 {
 	switch (qc->id) {
 	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
 	case V4L2_CID_AUDIO_BASS:
 	case V4L2_CID_AUDIO_TREBLE:
-		return v4l2_ctrl_query_fill_std(qc);
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
 	}
 	return -EINVAL;
 }
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index 076ed5bf48b1..0eb3b1694287 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -1636,21 +1636,24 @@ static int tvaudio_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 
 	switch (qc->id) {
 	case V4L2_CID_AUDIO_MUTE:
-		break;
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
 	case V4L2_CID_AUDIO_VOLUME:
+		if (desc->flags & CHIP_HAS_VOLUME)
+			return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
+		break;
 	case V4L2_CID_AUDIO_BALANCE:
-		if (!(desc->flags & CHIP_HAS_VOLUME))
-			return -EINVAL;
+		if (desc->flags & CHIP_HAS_VOLUME)
+			return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
 		break;
 	case V4L2_CID_AUDIO_BASS:
 	case V4L2_CID_AUDIO_TREBLE:
-		if (!(desc->flags & CHIP_HAS_BASSTREBLE))
-			return -EINVAL;
+		if (desc->flags & CHIP_HAS_BASSTREBLE)
+			return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
 		break;
 	default:
-		return -EINVAL;
+		break;
 	}
-	return v4l2_ctrl_query_fill_std(qc);
+	return -EINVAL;
 }
 
 static int tvaudio_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *rt)
diff --git a/drivers/media/video/tvp514x.c b/drivers/media/video/tvp514x.c
index f0b2b8ed2fe4..4262e60b8116 100644
--- a/drivers/media/video/tvp514x.c
+++ b/drivers/media/video/tvp514x.c
@@ -725,10 +725,9 @@ ioctl_queryctrl(struct v4l2_int_device *s, struct v4l2_queryctrl *qctrl)
 
 	switch (qctrl->id) {
 	case V4L2_CID_BRIGHTNESS:
-		/* Brightness supported is same as standard one (0-255),
-		 * so make use of standard API provided.
+		/* Brightness supported is (0-255),
 		 */
-		err = v4l2_ctrl_query_fill_std(qctrl);
+		err = v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128);
 		break;
 	case V4L2_CID_CONTRAST:
 	case V4L2_CID_SATURATION:
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index caa7ba0705a5..dbced906aa06 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -588,151 +588,6 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste
 }
 EXPORT_SYMBOL(v4l2_ctrl_query_fill);
 
-/* Fill in a struct v4l2_queryctrl with standard values based on
-   the control ID. */
-int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
-{
-	switch (qctrl->id) {
-	/* USER controls */
-	case V4L2_CID_USER_CLASS:
-	case V4L2_CID_MPEG_CLASS:
-	case V4L2_CID_CAMERA_CLASS:
-		return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0);
-	case V4L2_CID_AUDIO_VOLUME:
-		return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 58880);
-	case V4L2_CID_AUDIO_MUTE:
-	case V4L2_CID_AUDIO_LOUDNESS:
-		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
-	case V4L2_CID_AUDIO_BALANCE:
-	case V4L2_CID_AUDIO_BASS:
-	case V4L2_CID_AUDIO_TREBLE:
-		return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 32768);
-	case V4L2_CID_BRIGHTNESS:
-		return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128);
-	case V4L2_CID_CONTRAST:
-	case V4L2_CID_SATURATION:
-		return v4l2_ctrl_query_fill(qctrl, 0, 127, 1, 64);
-	case V4L2_CID_HUE:
-		return v4l2_ctrl_query_fill(qctrl, -128, 127, 1, 0);
-	case V4L2_CID_COLORFX:
-		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
-
-	/* MPEG controls */
-	case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100,
-				V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000, 1,
-				V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000);
-	case V4L2_CID_MPEG_AUDIO_ENCODING:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_ENCODING_LAYER_1,
-				V4L2_MPEG_AUDIO_ENCODING_AC3, 1,
-				V4L2_MPEG_AUDIO_ENCODING_LAYER_2);
-	case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_L1_BITRATE_32K,
-				V4L2_MPEG_AUDIO_L1_BITRATE_448K, 1,
-				V4L2_MPEG_AUDIO_L1_BITRATE_256K);
-	case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_L2_BITRATE_32K,
-				V4L2_MPEG_AUDIO_L2_BITRATE_384K, 1,
-				V4L2_MPEG_AUDIO_L2_BITRATE_224K);
-	case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_L3_BITRATE_32K,
-				V4L2_MPEG_AUDIO_L3_BITRATE_320K, 1,
-				V4L2_MPEG_AUDIO_L3_BITRATE_192K);
-	case V4L2_CID_MPEG_AUDIO_AAC_BITRATE:
-		return v4l2_ctrl_query_fill(qctrl, 0, 6400, 1, 3200000);
-	case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_AC3_BITRATE_32K,
-				V4L2_MPEG_AUDIO_AC3_BITRATE_640K, 1,
-				V4L2_MPEG_AUDIO_AC3_BITRATE_384K);
-	case V4L2_CID_MPEG_AUDIO_MODE:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_MODE_STEREO,
-				V4L2_MPEG_AUDIO_MODE_MONO, 1,
-				V4L2_MPEG_AUDIO_MODE_STEREO);
-	case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4,
-				V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16, 1,
-				V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4);
-	case V4L2_CID_MPEG_AUDIO_EMPHASIS:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_EMPHASIS_NONE,
-				V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17, 1,
-				V4L2_MPEG_AUDIO_EMPHASIS_NONE);
-	case V4L2_CID_MPEG_AUDIO_CRC:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_AUDIO_CRC_NONE,
-				V4L2_MPEG_AUDIO_CRC_CRC16, 1,
-				V4L2_MPEG_AUDIO_CRC_NONE);
-	case V4L2_CID_MPEG_AUDIO_MUTE:
-		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
-	case V4L2_CID_MPEG_VIDEO_ENCODING:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_VIDEO_ENCODING_MPEG_1,
-				V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 1,
-				V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
-	case V4L2_CID_MPEG_VIDEO_ASPECT:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_VIDEO_ASPECT_1x1,
-				V4L2_MPEG_VIDEO_ASPECT_221x100, 1,
-				V4L2_MPEG_VIDEO_ASPECT_4x3);
-	case V4L2_CID_MPEG_VIDEO_B_FRAMES:
-		return v4l2_ctrl_query_fill(qctrl, 0, 33, 1, 2);
-	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
-		return v4l2_ctrl_query_fill(qctrl, 1, 34, 1, 12);
-	case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
-		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1);
-	case V4L2_CID_MPEG_VIDEO_PULLDOWN:
-		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
-	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
-				V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
-				V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
-	case V4L2_CID_MPEG_VIDEO_BITRATE:
-		return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000);
-	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
-		return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000);
-	case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION:
-		return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
-	case V4L2_CID_MPEG_VIDEO_MUTE:
-		return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
-	case V4L2_CID_MPEG_VIDEO_MUTE_YUV:  /* Init YUV (really YCbCr) to black */
-		return v4l2_ctrl_query_fill(qctrl, 0, 0xffffff, 1, 0x008080);
-	case V4L2_CID_MPEG_STREAM_TYPE:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
-				V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD, 1,
-				V4L2_MPEG_STREAM_TYPE_MPEG2_PS);
-	case V4L2_CID_MPEG_STREAM_PID_PMT:
-		return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 16);
-	case V4L2_CID_MPEG_STREAM_PID_AUDIO:
-		return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 260);
-	case V4L2_CID_MPEG_STREAM_PID_VIDEO:
-		return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 256);
-	case V4L2_CID_MPEG_STREAM_PID_PCR:
-		return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 259);
-	case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO:
-		return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
-	case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO:
-		return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
-	case V4L2_CID_MPEG_STREAM_VBI_FMT:
-		return v4l2_ctrl_query_fill(qctrl,
-				V4L2_MPEG_STREAM_VBI_FMT_NONE,
-				V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1,
-				V4L2_MPEG_STREAM_VBI_FMT_NONE);
-	default:
-		return -EINVAL;
-	}
-}
-EXPORT_SYMBOL(v4l2_ctrl_query_fill_std);
-
 /* Fill in a struct v4l2_querymenu based on the struct v4l2_queryctrl and
    the menu. The qctrl pointer may be NULL, in which case it is ignored.
    If menu_items is NULL, then the menu items are retrieved using
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 7779d9c93ec8..3a6905615d68 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -102,7 +102,6 @@ int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
 const char *v4l2_ctrl_get_name(u32 id);
 const char **v4l2_ctrl_get_menu(u32 id);
 int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
-int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl);
 int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu,
 		struct v4l2_queryctrl *qctrl, const char **menu_items);
 #define V4L2_CTRL_MENU_IDS_END (0xffffffff)
-- 
cgit v1.2.3


From 8e4e1d8054b037e867849162ba78cf9b153b0dcc Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 19 Feb 2009 04:49:29 -0300
Subject: V4L/DVB (10718): bt866: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/bt866.c     | 233 +++++++++++++++++++++-------------------
 include/media/v4l2-chip-ident.h |   3 +
 2 files changed, 126 insertions(+), 110 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/bt866.c b/drivers/media/video/bt866.c
index 1df24c8776f3..18d383877ece 100644
--- a/drivers/media/video/bt866.c
+++ b/drivers/media/video/bt866.c
@@ -34,9 +34,9 @@
 #include <asm/uaccess.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
-#include <linux/videodev.h>
-#include <linux/video_encoder.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 MODULE_DESCRIPTION("Brooktree-866 video encoder driver");
@@ -47,21 +47,25 @@ static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
+static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD;
+
 /* ----------------------------------------------------------------------- */
 
 struct bt866 {
+	struct v4l2_subdev sd;
 	u8 reg[256];
-
-	v4l2_std_id norm;
-	int bright;
-	int contrast;
-	int hue;
-	int sat;
 };
 
-static int bt866_write(struct i2c_client *client, u8 subaddr, u8 data)
+static inline struct bt866 *to_bt866(struct v4l2_subdev *sd)
 {
-	struct bt866 *encoder = i2c_get_clientdata(client);
+	return container_of(sd, struct bt866, sd);
+}
+
+static int bt866_write(struct bt866 *encoder, u8 subaddr, u8 data)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd);
 	u8 buffer[2];
 	int err;
 
@@ -88,119 +92,125 @@ static int bt866_write(struct i2c_client *client, u8 subaddr, u8 data)
 	return 0;
 }
 
-static int bt866_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int bt866_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
 {
-	struct bt866 *encoder = i2c_get_clientdata(client);
-
-	switch (cmd) {
-	case VIDIOC_INT_S_STD_OUTPUT:
-	{
-		v4l2_std_id *iarg = arg;
-
-		v4l_dbg(1, debug, client, "set norm %llx\n", *iarg);
+	v4l2_dbg(1, debug, sd, "set norm %llx\n", std);
 
-		if (!(*iarg & (V4L2_STD_NTSC | V4L2_STD_PAL)))
-			return -EINVAL;
-		encoder->norm = *iarg;
-		break;
-	}
+	/* Only PAL supported by this driver at the moment! */
+	if (!(std & V4L2_STD_NTSC))
+		return -EINVAL;
+	return 0;
+}
 
-	case VIDIOC_INT_S_VIDEO_ROUTING:
-	{
-		struct v4l2_routing *route = arg;
-		static const __u8 init[] = {
-			0xc8, 0xcc, /* CRSCALE */
-			0xca, 0x91, /* CBSCALE */
-			0xcc, 0x24, /* YC16 | OSDNUM */
-			0xda, 0x00, /*  */
-			0xdc, 0x24, /* SETMODE | PAL */
-			0xde, 0x02, /* EACTIVE */
-
-			/* overlay colors */
-			0x70, 0xEB, 0x90, 0x80, 0xB0, 0x80, /* white */
-			0x72, 0xA2, 0x92, 0x8E, 0xB2, 0x2C, /* yellow */
-			0x74, 0x83, 0x94, 0x2C, 0xB4, 0x9C, /* cyan */
-			0x76, 0x70, 0x96, 0x3A, 0xB6, 0x48, /* green */
-			0x78, 0x54, 0x98, 0xC6, 0xB8, 0xB8, /* magenta */
-			0x7A, 0x41, 0x9A, 0xD4, 0xBA, 0x64, /* red */
-			0x7C, 0x23, 0x9C, 0x72, 0xBC, 0xD4, /* blue */
-			0x7E, 0x10, 0x9E, 0x80, 0xBE, 0x80, /* black */
-
-			0x60, 0xEB, 0x80, 0x80, 0xc0, 0x80, /* white */
-			0x62, 0xA2, 0x82, 0x8E, 0xc2, 0x2C, /* yellow */
-			0x64, 0x83, 0x84, 0x2C, 0xc4, 0x9C, /* cyan */
-			0x66, 0x70, 0x86, 0x3A, 0xc6, 0x48, /* green */
-			0x68, 0x54, 0x88, 0xC6, 0xc8, 0xB8, /* magenta */
-			0x6A, 0x41, 0x8A, 0xD4, 0xcA, 0x64, /* red */
-			0x6C, 0x23, 0x8C, 0x72, 0xcC, 0xD4, /* blue */
-			0x6E, 0x10, 0x8E, 0x80, 0xcE, 0x80, /* black */
-		};
-		int i;
-		u8 val;
-
-		for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2)
-			bt866_write(client, init[i], init[i+1]);
-
-		val = encoder->reg[0xdc];
-
-		if (route->input == 0)
-			val |= 0x40; /* CBSWAP */
-		else
-			val &= ~0x40; /* !CBSWAP */
-
-		bt866_write(client, 0xdc, val);
-
-		val = encoder->reg[0xcc];
-		if (route->input == 2)
-			val |= 0x01; /* OSDBAR */
-		else
-			val &= ~0x01; /* !OSDBAR */
-		bt866_write(client, 0xcc, val);
-
-		v4l_dbg(1, debug, client, "set input %d\n", route->input);
-
-		switch (route->input) {
-		case 0:
-			break;
-		case 1:
-			break;
-		default:
-			return -EINVAL;
-		}
+static int bt866_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+	static const __u8 init[] = {
+		0xc8, 0xcc, /* CRSCALE */
+		0xca, 0x91, /* CBSCALE */
+		0xcc, 0x24, /* YC16 | OSDNUM */
+		0xda, 0x00, /*  */
+		0xdc, 0x24, /* SETMODE | PAL */
+		0xde, 0x02, /* EACTIVE */
+
+		/* overlay colors */
+		0x70, 0xEB, 0x90, 0x80, 0xB0, 0x80, /* white */
+		0x72, 0xA2, 0x92, 0x8E, 0xB2, 0x2C, /* yellow */
+		0x74, 0x83, 0x94, 0x2C, 0xB4, 0x9C, /* cyan */
+		0x76, 0x70, 0x96, 0x3A, 0xB6, 0x48, /* green */
+		0x78, 0x54, 0x98, 0xC6, 0xB8, 0xB8, /* magenta */
+		0x7A, 0x41, 0x9A, 0xD4, 0xBA, 0x64, /* red */
+		0x7C, 0x23, 0x9C, 0x72, 0xBC, 0xD4, /* blue */
+		0x7E, 0x10, 0x9E, 0x80, 0xBE, 0x80, /* black */
+
+		0x60, 0xEB, 0x80, 0x80, 0xc0, 0x80, /* white */
+		0x62, 0xA2, 0x82, 0x8E, 0xc2, 0x2C, /* yellow */
+		0x64, 0x83, 0x84, 0x2C, 0xc4, 0x9C, /* cyan */
+		0x66, 0x70, 0x86, 0x3A, 0xc6, 0x48, /* green */
+		0x68, 0x54, 0x88, 0xC6, 0xc8, 0xB8, /* magenta */
+		0x6A, 0x41, 0x8A, 0xD4, 0xcA, 0x64, /* red */
+		0x6C, 0x23, 0x8C, 0x72, 0xcC, 0xD4, /* blue */
+		0x6E, 0x10, 0x8E, 0x80, 0xcE, 0x80, /* black */
+	};
+	struct bt866 *encoder = to_bt866(sd);
+	u8 val;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2)
+		bt866_write(encoder, init[i], init[i+1]);
+
+	val = encoder->reg[0xdc];
+
+	if (route->input == 0)
+		val |= 0x40; /* CBSWAP */
+	else
+		val &= ~0x40; /* !CBSWAP */
+
+	bt866_write(encoder, 0xdc, val);
+
+	val = encoder->reg[0xcc];
+	if (route->input == 2)
+		val |= 0x01; /* OSDBAR */
+	else
+		val &= ~0x01; /* !OSDBAR */
+	bt866_write(encoder, 0xcc, val);
+
+	v4l2_dbg(1, debug, sd, "set input %d\n", route->input);
+
+	switch (route->input) {
+	case 0:
+	case 1:
+	case 2:
 		break;
+	default:
+		return -EINVAL;
 	}
+	return 0;
+}
 
-	case 4711:
-	{
-		int *iarg = arg;
-		__u8 val;
+#if 0
+/* Code to setup square pixels, might be of some use in the future,
+   but is currently unused. */
+	val = encoder->reg[0xdc];
+	if (*iarg)
+		val |= 1; /* SQUARE */
+	else
+		val &= ~1; /* !SQUARE */
+	bt866_write(client, 0xdc, val);
+#endif
+
+static int bt866_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-		v4l_dbg(1, debug, client, "square %d\n", *iarg);
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_BT866, 0);
+}
 
-		val = encoder->reg[0xdc];
-		if (*iarg)
-			val |= 1; /* SQUARE */
-		else
-			val &= ~1; /* !SQUARE */
-		bt866_write(client, 0xdc, val);
-		break;
-	}
+static int bt866_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
 
-	default:
-		return -EINVAL;
-	}
+/* ----------------------------------------------------------------------- */
 
-	return 0;
-}
+static const struct v4l2_subdev_core_ops bt866_core_ops = {
+	.g_chip_ident = bt866_g_chip_ident,
+};
 
-static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
+static const struct v4l2_subdev_video_ops bt866_video_ops = {
+	.s_std_output = bt866_s_std_output,
+	.s_routing = bt866_s_routing,
+};
 
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_ops bt866_ops = {
+	.core = &bt866_core_ops,
+	.video = &bt866_video_ops,
+};
 
 static int bt866_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct bt866 *encoder;
+	struct v4l2_subdev *sd;
 
 	v4l_info(client, "chip found @ 0x%x (%s)\n",
 			client->addr << 1, client->adapter->name);
@@ -208,14 +218,17 @@ static int bt866_probe(struct i2c_client *client,
 	encoder = kzalloc(sizeof(*encoder), GFP_KERNEL);
 	if (encoder == NULL)
 		return -ENOMEM;
-
-	i2c_set_clientdata(client, encoder);
+	sd = &encoder->sd;
+	v4l2_i2c_subdev_init(sd, client, &bt866_ops);
 	return 0;
 }
 
 static int bt866_remove(struct i2c_client *client)
 {
-	kfree(i2c_get_clientdata(client));
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_bt866(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index bbe2bb6a596a..cfb236e5a1cc 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -71,6 +71,9 @@ enum {
 	V4L2_IDENT_CX23416 = 416,
 	V4L2_IDENT_CX23418 = 418,
 
+	/* module bt866: just ident 866 */
+	V4L2_IDENT_BT866 = 866,
+
 	/* module vp27smpx: just ident 2700 */
 	V4L2_IDENT_VP27SMPX = 2700,
 
-- 
cgit v1.2.3


From c2179ad87240cf31b751f198c55140211e8cef89 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 19 Feb 2009 06:36:36 -0300
Subject: V4L/DVB (10719): bt819: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/bt819.c     | 477 +++++++++++++++++++++-------------------
 include/media/v4l2-chip-ident.h |   5 +
 2 files changed, 257 insertions(+), 225 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c
index b8109a1b50ce..ce2a8f3ef64d 100644
--- a/drivers/media/video/bt819.c
+++ b/drivers/media/video/bt819.c
@@ -29,15 +29,14 @@
  */
 
 #include <linux/module.h>
-#include <linux/delay.h>
 #include <linux/types.h>
 #include <linux/ioctl.h>
 #include <asm/uaccess.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
-#include <linux/videodev.h>
-#include <linux/video_decoder.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 MODULE_DESCRIPTION("Brooktree-819 video decoder driver");
@@ -48,13 +47,18 @@ static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
+static unsigned short normal_i2c[] = { 0x8a >> 1, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD;
+
 /* ----------------------------------------------------------------------- */
 
 struct bt819 {
+	struct v4l2_subdev sd;
 	unsigned char reg[32];
 
-	int initialized;
 	v4l2_std_id norm;
+	int ident;
 	int input;
 	int enable;
 	int bright;
@@ -63,6 +67,11 @@ struct bt819 {
 	int sat;
 };
 
+static inline struct bt819 *to_bt819(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct bt819, sd);
+}
+
 struct timing {
 	int hactive;
 	int hdelay;
@@ -80,24 +89,23 @@ static struct timing timing_data[] = {
 
 /* ----------------------------------------------------------------------- */
 
-static inline int bt819_write(struct i2c_client *client, u8 reg, u8 value)
+static inline int bt819_write(struct bt819 *decoder, u8 reg, u8 value)
 {
-	struct bt819 *decoder = i2c_get_clientdata(client);
+	struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);
 
 	decoder->reg[reg] = value;
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
-static inline int bt819_setbit(struct i2c_client *client, u8 reg, u8 bit, u8 value)
+static inline int bt819_setbit(struct bt819 *decoder, u8 reg, u8 bit, u8 value)
 {
-	struct bt819 *decoder = i2c_get_clientdata(client);
-
-	return bt819_write(client, reg,
+	return bt819_write(decoder, reg,
 		(decoder->reg[reg] & ~(1 << bit)) | (value ? (1 << bit) : 0));
 }
 
-static int bt819_write_block(struct i2c_client *client, const u8 *data, unsigned int len)
+static int bt819_write_block(struct bt819 *decoder, const u8 *data, unsigned int len)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);
 	int ret = -1;
 	u8 reg;
 
@@ -105,7 +113,6 @@ static int bt819_write_block(struct i2c_client *client, const u8 *data, unsigned
 	 * the adapter understands raw I2C */
 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
 		/* do raw I2C, not smbus compatible */
-		struct bt819 *decoder = i2c_get_clientdata(client);
 		u8 block_data[32];
 		int block_len;
 
@@ -126,7 +133,8 @@ static int bt819_write_block(struct i2c_client *client, const u8 *data, unsigned
 		/* do some slow I2C emulation kind of thing */
 		while (len >= 2) {
 			reg = *data++;
-			if ((ret = bt819_write(client, reg, *data++)) < 0)
+			ret = bt819_write(decoder, reg, *data++);
+			if (ret < 0)
 				break;
 			len -= 2;
 		}
@@ -135,15 +143,15 @@ static int bt819_write_block(struct i2c_client *client, const u8 *data, unsigned
 	return ret;
 }
 
-static inline int bt819_read(struct i2c_client *client, u8 reg)
+static inline int bt819_read(struct bt819 *decoder, u8 reg)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);
+
 	return i2c_smbus_read_byte_data(client, reg);
 }
 
-static int bt819_init(struct i2c_client *client)
+static int bt819_init(struct v4l2_subdev *sd)
 {
-	struct bt819 *decoder = i2c_get_clientdata(client);
-
 	static unsigned char init[] = {
 		/*0x1f, 0x00,*/     /* Reset */
 		0x01, 0x59,	/* 0x01 input format */
@@ -178,6 +186,7 @@ static int bt819_init(struct i2c_client *client)
 		0x1a, 0x80,	/* 0x1a ADC Interface */
 	};
 
+	struct bt819 *decoder = to_bt819(sd);
 	struct timing *timing = &timing_data[(decoder->norm & V4L2_STD_525_60) ? 1 : 0];
 
 	init[0x03 * 2 - 1] =
@@ -194,277 +203,297 @@ static int bt819_init(struct i2c_client *client)
 	/* 0x15 in array is address 0x19 */
 	init[0x15 * 2 - 1] = (decoder->norm & V4L2_STD_625_50) ? 115 : 93;	/* Chroma burst delay */
 	/* reset */
-	bt819_write(client, 0x1f, 0x00);
+	bt819_write(decoder, 0x1f, 0x00);
 	mdelay(1);
 
 	/* init */
-	return bt819_write_block(client, init, sizeof(init));
+	return bt819_write_block(decoder, init, sizeof(init));
 }
 
 /* ----------------------------------------------------------------------- */
 
-static int bt819_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int bt819_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd)
 {
-	int temp;
+	struct bt819 *decoder = to_bt819(sd);
+	int status = bt819_read(decoder, 0x00);
+	int res = V4L2_IN_ST_NO_SIGNAL;
+	v4l2_std_id std;
+
+	if ((status & 0x80))
+		res = 0;
+
+	if ((status & 0x10))
+		std = V4L2_STD_PAL;
+	else
+		std = V4L2_STD_NTSC;
+	if (pstd)
+		*pstd = std;
+	if (pstatus)
+		*pstatus = status;
+
+	v4l2_dbg(1, debug, sd, "get status %x\n", status);
+	return 0;
+}
 
-	struct bt819 *decoder = i2c_get_clientdata(client);
+static int bt819_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+	return bt819_status(sd, NULL, std);
+}
 
-	if (!decoder->initialized) {	/* First call to bt819_init could be */
-		bt819_init(client);	/* without #FRST = 0 */
-		decoder->initialized = 1;
+static int bt819_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+	return bt819_status(sd, status, NULL);
+}
+
+static int bt819_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+	struct bt819 *decoder = to_bt819(sd);
+	struct timing *timing = NULL;
+
+	v4l2_dbg(1, debug, sd, "set norm %llx\n", std);
+
+	if (std & V4L2_STD_NTSC) {
+		bt819_setbit(decoder, 0x01, 0, 1);
+		bt819_setbit(decoder, 0x01, 1, 0);
+		bt819_setbit(decoder, 0x01, 5, 0);
+		bt819_write(decoder, 0x18, 0x68);
+		bt819_write(decoder, 0x19, 0x5d);
+		/* bt819_setbit(decoder, 0x1a,  5, 1); */
+		timing = &timing_data[1];
+	} else if (std & V4L2_STD_PAL) {
+		bt819_setbit(decoder, 0x01, 0, 1);
+		bt819_setbit(decoder, 0x01, 1, 1);
+		bt819_setbit(decoder, 0x01, 5, 1);
+		bt819_write(decoder, 0x18, 0x7f);
+		bt819_write(decoder, 0x19, 0x72);
+		/* bt819_setbit(decoder, 0x1a,  5, 0); */
+		timing = &timing_data[0];
+	} else {
+		v4l2_dbg(1, debug, sd, "unsupported norm %llx\n", std);
+		return -EINVAL;
 	}
+	bt819_write(decoder, 0x03,
+			(((timing->vdelay >> 8) & 0x03) << 6) |
+			(((timing->vactive >> 8) & 0x03) << 4) |
+			(((timing->hdelay >> 8) & 0x03) << 2) |
+			((timing->hactive >> 8) & 0x03));
+	bt819_write(decoder, 0x04, timing->vdelay & 0xff);
+	bt819_write(decoder, 0x05, timing->vactive & 0xff);
+	bt819_write(decoder, 0x06, timing->hdelay & 0xff);
+	bt819_write(decoder, 0x07, timing->hactive & 0xff);
+	bt819_write(decoder, 0x08, (timing->hscale >> 8) & 0xff);
+	bt819_write(decoder, 0x09, timing->hscale & 0xff);
+	decoder->norm = std;
+	return 0;
+}
 
-	switch (cmd) {
-	case VIDIOC_INT_INIT:
-		/* This is just for testing!!! */
-		bt819_init(client);
-		break;
+static int bt819_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+	struct bt819 *decoder = to_bt819(sd);
 
-	case VIDIOC_QUERYSTD:
-	case VIDIOC_INT_G_INPUT_STATUS: {
-		int *iarg = arg;
-		v4l2_std_id *istd = arg;
-		int status;
-		int res = V4L2_IN_ST_NO_SIGNAL;
-		v4l2_std_id std;
-
-		status = bt819_read(client, 0x00);
-		if ((status & 0x80))
-			res = 0;
-
-		if ((status & 0x10))
-			std = V4L2_STD_PAL;
-		else
-			std = V4L2_STD_NTSC;
-		if (cmd == VIDIOC_QUERYSTD)
-			*istd = std;
-		else
-			*iarg = res;
-
-		v4l_dbg(1, debug, client, "get status %x\n", *iarg);
-		break;
-	}
+	v4l2_dbg(1, debug, sd, "set input %x\n", route->input);
 
-	case VIDIOC_S_STD:
-	{
-		v4l2_std_id *iarg = arg;
-		struct timing *timing = NULL;
-
-		v4l_dbg(1, debug, client, "set norm %llx\n", *iarg);
-
-		if (*iarg & V4L2_STD_NTSC) {
-			bt819_setbit(client, 0x01, 0, 1);
-			bt819_setbit(client, 0x01, 1, 0);
-			bt819_setbit(client, 0x01, 5, 0);
-			bt819_write(client, 0x18, 0x68);
-			bt819_write(client, 0x19, 0x5d);
-			/* bt819_setbit(client, 0x1a,  5, 1); */
-			timing = &timing_data[1];
-		} else if (*iarg & V4L2_STD_PAL) {
-			bt819_setbit(client, 0x01, 0, 1);
-			bt819_setbit(client, 0x01, 1, 1);
-			bt819_setbit(client, 0x01, 5, 1);
-			bt819_write(client, 0x18, 0x7f);
-			bt819_write(client, 0x19, 0x72);
-			/* bt819_setbit(client, 0x1a,  5, 0); */
-			timing = &timing_data[0];
-		} else {
-			v4l_dbg(1, debug, client, "unsupported norm %llx\n", *iarg);
-			return -EINVAL;
-		}
-/*		case VIDEO_MODE_AUTO:
-			bt819_setbit(client, 0x01, 0, 0);
-			bt819_setbit(client, 0x01, 1, 0);*/
-
-		bt819_write(client, 0x03,
-			    (((timing->vdelay >> 8) & 0x03) << 6) |
-			    (((timing->vactive >> 8) & 0x03) << 4) |
-			    (((timing->hdelay >> 8) & 0x03) << 2) |
-			     ((timing->hactive >> 8) & 0x03));
-		bt819_write(client, 0x04, timing->vdelay & 0xff);
-		bt819_write(client, 0x05, timing->vactive & 0xff);
-		bt819_write(client, 0x06, timing->hdelay & 0xff);
-		bt819_write(client, 0x07, timing->hactive & 0xff);
-		bt819_write(client, 0x08, (timing->hscale >> 8) & 0xff);
-		bt819_write(client, 0x09, timing->hscale & 0xff);
-		decoder->norm = *iarg;
-		break;
-	}
+	if (route->input < 0 || route->input > 7)
+		return -EINVAL;
 
-	case VIDIOC_INT_S_VIDEO_ROUTING:
-	{
-		struct v4l2_routing *route = arg;
-
-		v4l_dbg(1, debug, client, "set input %x\n", route->input);
-
-		if (route->input < 0 || route->input > 7)
-			return -EINVAL;
-
-		if (decoder->input != route->input) {
-			decoder->input = route->input;
-			/* select mode */
-			if (decoder->input == 0) {
-				bt819_setbit(client, 0x0b, 6, 0);
-				bt819_setbit(client, 0x1a, 1, 1);
-			} else {
-				bt819_setbit(client, 0x0b, 6, 1);
-				bt819_setbit(client, 0x1a, 1, 0);
-			}
+	if (decoder->input != route->input) {
+		decoder->input = route->input;
+		/* select mode */
+		if (decoder->input == 0) {
+			bt819_setbit(decoder, 0x0b, 6, 0);
+			bt819_setbit(decoder, 0x1a, 1, 1);
+		} else {
+			bt819_setbit(decoder, 0x0b, 6, 1);
+			bt819_setbit(decoder, 0x1a, 1, 0);
 		}
-		break;
 	}
+	return 0;
+}
 
-	case VIDIOC_STREAMON:
-	case VIDIOC_STREAMOFF:
-	{
-		int enable = cmd == VIDIOC_STREAMON;
+static int bt819_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct bt819 *decoder = to_bt819(sd);
 
-		v4l_dbg(1, debug, client, "enable output %x\n", enable);
+	v4l2_dbg(1, debug, sd, "enable output %x\n", enable);
 
-		if (decoder->enable != enable) {
-			decoder->enable = enable;
-			bt819_setbit(client, 0x16, 7, !enable);
-		}
-		break;
+	if (decoder->enable != enable) {
+		decoder->enable = enable;
+		bt819_setbit(decoder, 0x16, 7, !enable);
 	}
+	return 0;
+}
 
-	case VIDIOC_QUERYCTRL:
-	{
-		struct v4l2_queryctrl *qc = arg;
-
-		switch (qc->id) {
-		case V4L2_CID_BRIGHTNESS:
-			v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
-			break;
-
-		case V4L2_CID_CONTRAST:
-			v4l2_ctrl_query_fill(qc, 0, 511, 1, 256);
-			break;
+static int bt819_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+	switch (qc->id) {
+	case V4L2_CID_BRIGHTNESS:
+		v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
+		break;
 
-		case V4L2_CID_SATURATION:
-			v4l2_ctrl_query_fill(qc, 0, 511, 1, 256);
-			break;
+	case V4L2_CID_CONTRAST:
+		v4l2_ctrl_query_fill(qc, 0, 511, 1, 256);
+		break;
 
-		case V4L2_CID_HUE:
-			v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
-			break;
+	case V4L2_CID_SATURATION:
+		v4l2_ctrl_query_fill(qc, 0, 511, 1, 256);
+		break;
 
-		default:
-			return -EINVAL;
-		}
+	case V4L2_CID_HUE:
+		v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
 		break;
+
+	default:
+		return -EINVAL;
 	}
+	return 0;
+}
 
-	case VIDIOC_S_CTRL:
-	{
-		struct v4l2_control *ctrl = arg;
+static int bt819_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct bt819 *decoder = to_bt819(sd);
+	int temp;
 
-		switch (ctrl->id) {
-		case V4L2_CID_BRIGHTNESS:
-			if (decoder->bright != ctrl->value) {
-				decoder->bright = ctrl->value;
-				bt819_write(client, 0x0a, decoder->bright);
-			}
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		if (decoder->bright == ctrl->value)
 			break;
+		decoder->bright = ctrl->value;
+		bt819_write(decoder, 0x0a, decoder->bright);
+		break;
 
-		case V4L2_CID_CONTRAST:
-			if (decoder->contrast != ctrl->value) {
-				decoder->contrast = ctrl->value;
-				bt819_write(client, 0x0c,
-						decoder->contrast & 0xff);
-				bt819_setbit(client, 0x0b, 2,
-						((decoder->contrast >> 8) & 0x01));
-			}
+	case V4L2_CID_CONTRAST:
+		if (decoder->contrast == ctrl->value)
 			break;
+		decoder->contrast = ctrl->value;
+		bt819_write(decoder, 0x0c, decoder->contrast & 0xff);
+		bt819_setbit(decoder, 0x0b, 2, ((decoder->contrast >> 8) & 0x01));
+		break;
 
-		case V4L2_CID_SATURATION:
-			if (decoder->sat != ctrl->value) {
-				decoder->sat = ctrl->value;
-				bt819_write(client, 0x0d,
-						(decoder->sat >> 7) & 0xff);
-				bt819_setbit(client, 0x0b, 1,
-						((decoder->sat >> 15) & 0x01));
-
-				/* Ratio between U gain and V gain must stay the same as
-				   the ratio between the default U and V gain values. */
-				temp = (decoder->sat * 180) / 254;
-				bt819_write(client, 0x0e, (temp >> 7) & 0xff);
-				bt819_setbit(client, 0x0b, 0, (temp >> 15) & 0x01);
-			}
+	case V4L2_CID_SATURATION:
+		if (decoder->sat == ctrl->value)
 			break;
+		decoder->sat = ctrl->value;
+		bt819_write(decoder, 0x0d, (decoder->sat >> 7) & 0xff);
+		bt819_setbit(decoder, 0x0b, 1, ((decoder->sat >> 15) & 0x01));
+
+		/* Ratio between U gain and V gain must stay the same as
+		   the ratio between the default U and V gain values. */
+		temp = (decoder->sat * 180) / 254;
+		bt819_write(decoder, 0x0e, (temp >> 7) & 0xff);
+		bt819_setbit(decoder, 0x0b, 0, (temp >> 15) & 0x01);
+		break;
 
-		case V4L2_CID_HUE:
-			if (decoder->hue != ctrl->value) {
-				decoder->hue = ctrl->value;
-				bt819_write(client, 0x0f, decoder->hue);
-			}
+	case V4L2_CID_HUE:
+		if (decoder->hue == ctrl->value)
 			break;
-		default:
-			return -EINVAL;
-		}
+		decoder->hue = ctrl->value;
+		bt819_write(decoder, 0x0f, decoder->hue);
 		break;
+
+	default:
+		return -EINVAL;
 	}
+	return 0;
+}
 
-	case VIDIOC_G_CTRL:
-	{
-		struct v4l2_control *ctrl = arg;
+static int bt819_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct bt819 *decoder = to_bt819(sd);
 
-		switch (ctrl->id) {
-		case V4L2_CID_BRIGHTNESS:
-			ctrl->value = decoder->bright;
-			break;
-		case V4L2_CID_CONTRAST:
-			ctrl->value = decoder->contrast;
-			break;
-		case V4L2_CID_SATURATION:
-			ctrl->value = decoder->sat;
-			break;
-		case V4L2_CID_HUE:
-			ctrl->value = decoder->hue;
-			break;
-		default:
-			return -EINVAL;
-		}
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		ctrl->value = decoder->bright;
+		break;
+	case V4L2_CID_CONTRAST:
+		ctrl->value = decoder->contrast;
+		break;
+	case V4L2_CID_SATURATION:
+		ctrl->value = decoder->sat;
+		break;
+	case V4L2_CID_HUE:
+		ctrl->value = decoder->hue;
 		break;
-	}
-
 	default:
 		return -EINVAL;
 	}
-
 	return 0;
 }
 
+static int bt819_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct bt819 *decoder = to_bt819(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, decoder->ident, 0);
+}
+
+static int bt819_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
 /* ----------------------------------------------------------------------- */
 
-static unsigned short normal_i2c[] = { 0x8a >> 1, I2C_CLIENT_END };
+static const struct v4l2_subdev_core_ops bt819_core_ops = {
+	.g_chip_ident = bt819_g_chip_ident,
+	.g_ctrl = bt819_g_ctrl,
+	.s_ctrl = bt819_s_ctrl,
+	.queryctrl = bt819_queryctrl,
+};
 
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_tuner_ops bt819_tuner_ops = {
+	.s_std = bt819_s_std,
+};
+
+static const struct v4l2_subdev_video_ops bt819_video_ops = {
+	.s_routing = bt819_s_routing,
+	.s_stream = bt819_s_stream,
+	.querystd = bt819_querystd,
+	.g_input_status = bt819_g_input_status,
+};
+
+static const struct v4l2_subdev_ops bt819_ops = {
+	.core = &bt819_core_ops,
+	.tuner = &bt819_tuner_ops,
+	.video = &bt819_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
 
 static int bt819_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	int i, ver;
 	struct bt819 *decoder;
+	struct v4l2_subdev *sd;
 	const char *name;
 
 	/* Check if the adapter supports the needed features */
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
 
-	ver = bt819_read(client, 0x17);
+	decoder = kzalloc(sizeof(struct bt819), GFP_KERNEL);
+	if (decoder == NULL)
+		return -ENOMEM;
+	sd = &decoder->sd;
+	v4l2_i2c_subdev_init(sd, client, &bt819_ops);
+
+	ver = bt819_read(decoder, 0x17);
 	switch (ver & 0xf0) {
 	case 0x70:
 		name = "bt819a";
+		decoder->ident = V4L2_IDENT_BT819A;
 		break;
 	case 0x60:
 		name = "bt817a";
+		decoder->ident = V4L2_IDENT_BT817A;
 		break;
 	case 0x20:
 		name = "bt815a";
+		decoder->ident = V4L2_IDENT_BT815A;
 		break;
 	default:
-		v4l_dbg(1, debug, client,
+		v4l2_dbg(1, debug, sd,
 			"unknown chip version 0x%02x\n", ver);
 		return -ENODEV;
 	}
@@ -472,28 +501,26 @@ static int bt819_probe(struct i2c_client *client,
 	v4l_info(client, "%s found @ 0x%x (%s)\n", name,
 			client->addr << 1, client->adapter->name);
 
-	decoder = kzalloc(sizeof(struct bt819), GFP_KERNEL);
-	if (decoder == NULL)
-		return -ENOMEM;
 	decoder->norm = V4L2_STD_NTSC;
 	decoder->input = 0;
 	decoder->enable = 1;
 	decoder->bright = 0;
 	decoder->contrast = 0xd8;	/* 100% of original signal */
 	decoder->hue = 0;
-	decoder->sat = 0xfe;	/* 100% of original signal */
-	decoder->initialized = 0;
-	i2c_set_clientdata(client, decoder);
+	decoder->sat = 0xfe;		/* 100% of original signal */
 
-	i = bt819_init(client);
+	i = bt819_init(sd);
 	if (i < 0)
-		v4l_dbg(1, debug, client, "init status %d\n", i);
+		v4l2_dbg(1, debug, sd, "init status %d\n", i);
 	return 0;
 }
 
 static int bt819_remove(struct i2c_client *client)
 {
-	kfree(i2c_get_clientdata(client));
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_bt819(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index cfb236e5a1cc..0766106beb82 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -71,6 +71,11 @@ enum {
 	V4L2_IDENT_CX23416 = 416,
 	V4L2_IDENT_CX23418 = 418,
 
+	/* module bt819: reserved range 810-819 */
+	V4L2_IDENT_BT815A = 815,
+	V4L2_IDENT_BT817A = 817,
+	V4L2_IDENT_BT819A = 819,
+
 	/* module bt866: just ident 866 */
 	V4L2_IDENT_BT866 = 866,
 
-- 
cgit v1.2.3


From a91f56e7ebe8f33861c613f03faee0b354bea6c1 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 19 Feb 2009 08:54:36 -0300
Subject: V4L/DVB (10721): bt856: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/bt856.c     | 243 ++++++++++++++++++++++------------------
 include/media/v4l2-chip-ident.h |   3 +
 2 files changed, 139 insertions(+), 107 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/bt856.c b/drivers/media/video/bt856.c
index 3e042c5ddaa7..182da6ab3845 100644
--- a/drivers/media/video/bt856.c
+++ b/drivers/media/video/bt856.c
@@ -34,9 +34,9 @@
 #include <asm/uaccess.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
-#include <linux/videodev.h>
-#include <linux/video_encoder.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 MODULE_DESCRIPTION("Brooktree-856A video encoder driver");
@@ -47,42 +47,49 @@ static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
+static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD;
+
 /* ----------------------------------------------------------------------- */
 
 #define BT856_REG_OFFSET	0xDA
 #define BT856_NR_REG		6
 
 struct bt856 {
+	struct v4l2_subdev sd;
 	unsigned char reg[BT856_NR_REG];
 
 	v4l2_std_id norm;
 };
 
+static inline struct bt856 *to_bt856(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct bt856, sd);
+}
+
 /* ----------------------------------------------------------------------- */
 
-static inline int bt856_write(struct i2c_client *client, u8 reg, u8 value)
+static inline int bt856_write(struct bt856 *encoder, u8 reg, u8 value)
 {
-	struct bt856 *encoder = i2c_get_clientdata(client);
+	struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd);
 
 	encoder->reg[reg - BT856_REG_OFFSET] = value;
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
-static inline int bt856_setbit(struct i2c_client *client, u8 reg, u8 bit, u8 value)
+static inline int bt856_setbit(struct bt856 *encoder, u8 reg, u8 bit, u8 value)
 {
-	struct bt856 *encoder = i2c_get_clientdata(client);
-
-	return bt856_write(client, reg,
+	return bt856_write(encoder, reg,
 		(encoder->reg[reg - BT856_REG_OFFSET] & ~(1 << bit)) |
 				(value ? (1 << bit) : 0));
 }
 
-static void bt856_dump(struct i2c_client *client)
+static void bt856_dump(struct bt856 *encoder)
 {
 	int i;
-	struct bt856 *encoder = i2c_get_clientdata(client);
 
-	v4l_info(client, "register dump:\n");
+	v4l2_info(&encoder->sd, "register dump:\n");
 	for (i = 0; i < BT856_NR_REG; i += 2)
 		printk(KERN_CONT " %02x", encoder->reg[i]);
 	printk(KERN_CONT "\n");
@@ -90,107 +97,125 @@ static void bt856_dump(struct i2c_client *client)
 
 /* ----------------------------------------------------------------------- */
 
-static int bt856_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int bt856_init(struct v4l2_subdev *sd, u32 arg)
 {
-	struct bt856 *encoder = i2c_get_clientdata(client);
-
-	switch (cmd) {
-	case VIDIOC_INT_INIT:
-		/* This is just for testing!!! */
-		v4l_dbg(1, debug, client, "init\n");
-		bt856_write(client, 0xdc, 0x18);
-		bt856_write(client, 0xda, 0);
-		bt856_write(client, 0xde, 0);
-
-		bt856_setbit(client, 0xdc, 3, 1);
-		//bt856_setbit(client, 0xdc, 6, 0);
-		bt856_setbit(client, 0xdc, 4, 1);
-
-		if (encoder->norm & V4L2_STD_NTSC)
-			bt856_setbit(client, 0xdc, 2, 0);
-		else
-			bt856_setbit(client, 0xdc, 2, 1);
-
-		bt856_setbit(client, 0xdc, 1, 1);
-		bt856_setbit(client, 0xde, 4, 0);
-		bt856_setbit(client, 0xde, 3, 1);
-		if (debug != 0)
-			bt856_dump(client);
-		break;
+	struct bt856 *encoder = to_bt856(sd);
 
-	case VIDIOC_INT_S_STD_OUTPUT:
-	{
-		v4l2_std_id *iarg = arg;
-
-		v4l_dbg(1, debug, client, "set norm %llx\n", *iarg);
-
-		if (*iarg & V4L2_STD_NTSC) {
-			bt856_setbit(client, 0xdc, 2, 0);
-		} else if (*iarg & V4L2_STD_PAL) {
-			bt856_setbit(client, 0xdc, 2, 1);
-			bt856_setbit(client, 0xda, 0, 0);
-			//bt856_setbit(client, 0xda, 0, 1);
-		} else {
-			return -EINVAL;
-		}
-		encoder->norm = *iarg;
-		if (debug != 0)
-			bt856_dump(client);
-		break;
-	}
+	/* This is just for testing!!! */
+	v4l2_dbg(1, debug, sd, "init\n");
+	bt856_write(encoder, 0xdc, 0x18);
+	bt856_write(encoder, 0xda, 0);
+	bt856_write(encoder, 0xde, 0);
 
-	case VIDIOC_INT_S_VIDEO_ROUTING:
-	{
-		struct v4l2_routing *route = arg;
-
-		v4l_dbg(1, debug, client, "set input %d\n", route->input);
-
-		/* We only have video bus.
-		 * route->input= 0: input is from bt819
-		 * route->input= 1: input is from ZR36060 */
-		switch (route->input) {
-		case 0:
-			bt856_setbit(client, 0xde, 4, 0);
-			bt856_setbit(client, 0xde, 3, 1);
-			bt856_setbit(client, 0xdc, 3, 1);
-			bt856_setbit(client, 0xdc, 6, 0);
-			break;
-		case 1:
-			bt856_setbit(client, 0xde, 4, 0);
-			bt856_setbit(client, 0xde, 3, 1);
-			bt856_setbit(client, 0xdc, 3, 1);
-			bt856_setbit(client, 0xdc, 6, 1);
-			break;
-		case 2:	// Color bar
-			bt856_setbit(client, 0xdc, 3, 0);
-			bt856_setbit(client, 0xde, 4, 1);
-			break;
-		default:
-			return -EINVAL;
-		}
-
-		if (debug != 0)
-			bt856_dump(client);
-		break;
+	bt856_setbit(encoder, 0xdc, 3, 1);
+	/*bt856_setbit(encoder, 0xdc, 6, 0);*/
+	bt856_setbit(encoder, 0xdc, 4, 1);
+
+	if (encoder->norm & V4L2_STD_NTSC)
+		bt856_setbit(encoder, 0xdc, 2, 0);
+	else
+		bt856_setbit(encoder, 0xdc, 2, 1);
+
+	bt856_setbit(encoder, 0xdc, 1, 1);
+	bt856_setbit(encoder, 0xde, 4, 0);
+	bt856_setbit(encoder, 0xde, 3, 1);
+	if (debug != 0)
+		bt856_dump(encoder);
+	return 0;
+}
+
+static int bt856_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+	struct bt856 *encoder = to_bt856(sd);
+
+	v4l2_dbg(1, debug, sd, "set norm %llx\n", std);
+
+	if (std & V4L2_STD_NTSC) {
+		bt856_setbit(encoder, 0xdc, 2, 0);
+	} else if (std & V4L2_STD_PAL) {
+		bt856_setbit(encoder, 0xdc, 2, 1);
+		bt856_setbit(encoder, 0xda, 0, 0);
+		/*bt856_setbit(encoder, 0xda, 0, 1);*/
+	} else {
+		return -EINVAL;
 	}
+	encoder->norm = std;
+	if (debug != 0)
+		bt856_dump(encoder);
+	return 0;
+}
 
+static int bt856_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+	struct bt856 *encoder = to_bt856(sd);
+
+	v4l2_dbg(1, debug, sd, "set input %d\n", route->input);
+
+	/* We only have video bus.
+	 * route->input= 0: input is from bt819
+	 * route->input= 1: input is from ZR36060 */
+	switch (route->input) {
+	case 0:
+		bt856_setbit(encoder, 0xde, 4, 0);
+		bt856_setbit(encoder, 0xde, 3, 1);
+		bt856_setbit(encoder, 0xdc, 3, 1);
+		bt856_setbit(encoder, 0xdc, 6, 0);
+		break;
+	case 1:
+		bt856_setbit(encoder, 0xde, 4, 0);
+		bt856_setbit(encoder, 0xde, 3, 1);
+		bt856_setbit(encoder, 0xdc, 3, 1);
+		bt856_setbit(encoder, 0xdc, 6, 1);
+		break;
+	case 2:	/* Color bar */
+		bt856_setbit(encoder, 0xdc, 3, 0);
+		bt856_setbit(encoder, 0xde, 4, 1);
+		break;
 	default:
 		return -EINVAL;
 	}
 
+	if (debug != 0)
+		bt856_dump(encoder);
 	return 0;
 }
 
+static int bt856_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_BT856, 0);
+}
+
+static int bt856_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
 /* ----------------------------------------------------------------------- */
 
-static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
+static const struct v4l2_subdev_core_ops bt856_core_ops = {
+	.g_chip_ident = bt856_g_chip_ident,
+	.init = bt856_init,
+};
 
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_video_ops bt856_video_ops = {
+	.s_std_output = bt856_s_std_output,
+	.s_routing = bt856_s_routing,
+};
+
+static const struct v4l2_subdev_ops bt856_ops = {
+	.core = &bt856_core_ops,
+	.video = &bt856_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
 
 static int bt856_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct bt856 *encoder;
+	struct v4l2_subdev *sd;
 
 	/* Check if the adapter supports the needed features */
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -202,34 +227,38 @@ static int bt856_probe(struct i2c_client *client,
 	encoder = kzalloc(sizeof(struct bt856), GFP_KERNEL);
 	if (encoder == NULL)
 		return -ENOMEM;
+	sd = &encoder->sd;
+	v4l2_i2c_subdev_init(sd, client, &bt856_ops);
 	encoder->norm = V4L2_STD_NTSC;
-	i2c_set_clientdata(client, encoder);
 
-	bt856_write(client, 0xdc, 0x18);
-	bt856_write(client, 0xda, 0);
-	bt856_write(client, 0xde, 0);
+	bt856_write(encoder, 0xdc, 0x18);
+	bt856_write(encoder, 0xda, 0);
+	bt856_write(encoder, 0xde, 0);
 
-	bt856_setbit(client, 0xdc, 3, 1);
-	//bt856_setbit(client, 0xdc, 6, 0);
-	bt856_setbit(client, 0xdc, 4, 1);
+	bt856_setbit(encoder, 0xdc, 3, 1);
+	/*bt856_setbit(encoder, 0xdc, 6, 0);*/
+	bt856_setbit(encoder, 0xdc, 4, 1);
 
 	if (encoder->norm & V4L2_STD_NTSC)
-		bt856_setbit(client, 0xdc, 2, 0);
+		bt856_setbit(encoder, 0xdc, 2, 0);
 	else
-		bt856_setbit(client, 0xdc, 2, 1);
+		bt856_setbit(encoder, 0xdc, 2, 1);
 
-	bt856_setbit(client, 0xdc, 1, 1);
-	bt856_setbit(client, 0xde, 4, 0);
-	bt856_setbit(client, 0xde, 3, 1);
+	bt856_setbit(encoder, 0xdc, 1, 1);
+	bt856_setbit(encoder, 0xde, 4, 0);
+	bt856_setbit(encoder, 0xde, 3, 1);
 
 	if (debug != 0)
-		bt856_dump(client);
+		bt856_dump(encoder);
 	return 0;
 }
 
 static int bt856_remove(struct i2c_client *client)
 {
-	kfree(i2c_get_clientdata(client));
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_bt856(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index 0766106beb82..69e3092fd288 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -76,6 +76,9 @@ enum {
 	V4L2_IDENT_BT817A = 817,
 	V4L2_IDENT_BT819A = 819,
 
+	/* module bt856: just ident 856 */
+	V4L2_IDENT_BT856 = 856,
+
 	/* module bt866: just ident 866 */
 	V4L2_IDENT_BT866 = 866,
 
-- 
cgit v1.2.3


From 0750e9719ea42ce84af1e55183d6329d6b49ba5e Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 19 Feb 2009 11:50:27 -0300
Subject: V4L/DVB (10722): ks0127: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/ks0127.c    | 646 +++++++++++++++++++---------------------
 include/media/v4l2-chip-ident.h |   5 +
 2 files changed, 315 insertions(+), 336 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/ks0127.c b/drivers/media/video/ks0127.c
index c97d55a43c07..9ae94484da64 100644
--- a/drivers/media/video/ks0127.c
+++ b/drivers/media/video/ks0127.c
@@ -39,8 +39,9 @@
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/i2c.h>
-#include <linux/video_decoder.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 #include "ks0127.h"
 
@@ -48,10 +49,17 @@ MODULE_DESCRIPTION("KS0127 video decoder driver");
 MODULE_AUTHOR("Ryan Drake");
 MODULE_LICENSE("GPL");
 
-#define KS_TYPE_UNKNOWN	0
-#define KS_TYPE_0122S	1
-#define KS_TYPE_0127	2
-#define KS_TYPE_0127B	3
+/* Addresses to scan */
+#define I2C_KS0127_ADDON   0xD8
+#define I2C_KS0127_ONBOARD 0xDA
+
+static unsigned short normal_i2c[] = {
+	I2C_KS0127_ADDON >> 1,
+	I2C_KS0127_ONBOARD >> 1,
+	I2C_CLIENT_END
+};
+
+I2C_CLIENT_INSMOD;
 
 /* ks0127 control registers */
 #define KS_STAT     0x00
@@ -197,15 +205,17 @@ struct adjust {
 };
 
 struct ks0127 {
-	int		format_width;
-	int		format_height;
-	int		cap_width;
-	int		cap_height;
+	struct v4l2_subdev sd;
 	v4l2_std_id	norm;
-	int		ks_type;
+	int		ident;
 	u8 		regs[256];
 };
 
+static inline struct ks0127 *to_ks0127(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct ks0127, sd);
+}
+
 
 static int debug; /* insmod parameter */
 
@@ -311,43 +321,45 @@ static void init_reg_defaults(void)
  */
 
 
-static u8 ks0127_read(struct i2c_client *c, u8 reg)
+static u8 ks0127_read(struct v4l2_subdev *sd, u8 reg)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	char val = 0;
 	struct i2c_msg msgs[] = {
-		{ c->addr, 0, sizeof(reg), &reg },
-		{ c->addr, I2C_M_RD | I2C_M_NO_RD_ACK, sizeof(val), &val }
+		{ client->addr, 0, sizeof(reg), &reg },
+		{ client->addr, I2C_M_RD | I2C_M_NO_RD_ACK, sizeof(val), &val }
 	};
 	int ret;
 
-	ret = i2c_transfer(c->adapter, msgs, ARRAY_SIZE(msgs));
+	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
 	if (ret != ARRAY_SIZE(msgs))
-		v4l_dbg(1, debug, c, "read error\n");
+		v4l2_dbg(1, debug, sd, "read error\n");
 
 	return val;
 }
 
 
-static void ks0127_write(struct i2c_client *c, u8 reg, u8 val)
+static void ks0127_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 {
-	struct ks0127 *ks = i2c_get_clientdata(c);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ks0127 *ks = to_ks0127(sd);
 	char msg[] = { reg, val };
 
-	if (i2c_master_send(c, msg, sizeof(msg)) != sizeof(msg))
-		v4l_dbg(1, debug, c, "write error\n");
+	if (i2c_master_send(client, msg, sizeof(msg)) != sizeof(msg))
+		v4l2_dbg(1, debug, sd, "write error\n");
 
 	ks->regs[reg] = val;
 }
 
 
 /* generic bit-twiddling */
-static void ks0127_and_or(struct i2c_client *client, u8 reg, u8 and_v, u8 or_v)
+static void ks0127_and_or(struct v4l2_subdev *sd, u8 reg, u8 and_v, u8 or_v)
 {
-	struct ks0127 *ks = i2c_get_clientdata(client);
+	struct ks0127 *ks = to_ks0127(sd);
 
 	u8 val = ks->regs[reg];
 	val = (val & and_v) | or_v;
-	ks0127_write(client, reg, val);
+	ks0127_write(sd, reg, val);
 }
 
 
@@ -355,391 +367,353 @@ static void ks0127_and_or(struct i2c_client *client, u8 reg, u8 and_v, u8 or_v)
 /****************************************************************************
 * ks0127 private api
 ****************************************************************************/
-static void ks0127_reset(struct i2c_client *c)
+static void ks0127_init(struct v4l2_subdev *sd)
 {
-	struct ks0127 *ks = i2c_get_clientdata(c);
+	struct ks0127 *ks = to_ks0127(sd);
 	u8 *table = reg_defaults;
 	int i;
 
-	ks->ks_type = KS_TYPE_UNKNOWN;
+	ks->ident = V4L2_IDENT_KS0127;
 
-	v4l_dbg(1, debug, c, "reset\n");
+	v4l2_dbg(1, debug, sd, "reset\n");
 	msleep(1);
 
 	/* initialize all registers to known values */
 	/* (except STAT, 0x21, 0x22, TEST and 0x38,0x39) */
 
 	for (i = 1; i < 33; i++)
-		ks0127_write(c, i, table[i]);
+		ks0127_write(sd, i, table[i]);
 
 	for (i = 35; i < 40; i++)
-		ks0127_write(c, i, table[i]);
+		ks0127_write(sd, i, table[i]);
 
 	for (i = 41; i < 56; i++)
-		ks0127_write(c, i, table[i]);
+		ks0127_write(sd, i, table[i]);
 
 	for (i = 58; i < 64; i++)
-		ks0127_write(c, i, table[i]);
+		ks0127_write(sd, i, table[i]);
 
 
-	if ((ks0127_read(c, KS_STAT) & 0x80) == 0) {
-		ks->ks_type = KS_TYPE_0122S;
-		v4l_dbg(1, debug, c, "ks0122s found\n");
+	if ((ks0127_read(sd, KS_STAT) & 0x80) == 0) {
+		ks->ident = V4L2_IDENT_KS0122S;
+		v4l2_dbg(1, debug, sd, "ks0122s found\n");
 		return;
 	}
 
-	switch (ks0127_read(c, KS_CMDE) & 0x0f) {
+	switch (ks0127_read(sd, KS_CMDE) & 0x0f) {
 	case 0:
-		ks->ks_type = KS_TYPE_0127;
-		v4l_dbg(1, debug, c, "ks0127 found\n");
+		v4l2_dbg(1, debug, sd, "ks0127 found\n");
 		break;
 
 	case 9:
-		ks->ks_type = KS_TYPE_0127B;
-		v4l_dbg(1, debug, c, "ks0127B Revision A found\n");
+		ks->ident = V4L2_IDENT_KS0127B;
+		v4l2_dbg(1, debug, sd, "ks0127B Revision A found\n");
 		break;
 
 	default:
-		v4l_dbg(1, debug, c, "unknown revision\n");
+		v4l2_dbg(1, debug, sd, "unknown revision\n");
 		break;
 	}
 }
 
-static int ks0127_command(struct i2c_client *c, unsigned cmd, void *arg)
+static int ks0127_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
 {
-	struct ks0127 *ks = i2c_get_clientdata(c);
-	struct v4l2_routing *route = arg;
-	int		*iarg = (int *)arg;
-	v4l2_std_id 	*istd = arg;
-	int		status;
-
-	if (!ks)
-		return -ENODEV;
-
-	switch (cmd) {
-	case VIDIOC_INT_INIT:
-		v4l_dbg(1, debug, c, "VIDIOC_INT_INIT\n");
-		ks0127_reset(c);
+	struct ks0127 *ks = to_ks0127(sd);
+
+	switch (route->input) {
+	case KS_INPUT_COMPOSITE_1:
+	case KS_INPUT_COMPOSITE_2:
+	case KS_INPUT_COMPOSITE_3:
+	case KS_INPUT_COMPOSITE_4:
+	case KS_INPUT_COMPOSITE_5:
+	case KS_INPUT_COMPOSITE_6:
+		v4l2_dbg(1, debug, sd,
+			"VIDIOC_S_INPUT %d: Composite\n", route->input);
+		/* autodetect 50/60 Hz */
+		ks0127_and_or(sd, KS_CMDA,   0xfc, 0x00);
+		/* VSE=0 */
+		ks0127_and_or(sd, KS_CMDA,   ~0x40, 0x00);
+		/* set input line */
+		ks0127_and_or(sd, KS_CMDB,   0xb0, route->input);
+		/* non-freerunning mode */
+		ks0127_and_or(sd, KS_CMDC,   0x70, 0x0a);
+		/* analog input */
+		ks0127_and_or(sd, KS_CMDD,   0x03, 0x00);
+		/* enable chroma demodulation */
+		ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x00);
+		/* chroma trap, HYBWR=1 */
+		ks0127_and_or(sd, KS_LUMA,   0x00,
+			       (reg_defaults[KS_LUMA])|0x0c);
+		/* scaler fullbw, luma comb off */
+		ks0127_and_or(sd, KS_VERTIA, 0x08, 0x81);
+		/* manual chroma comb .25 .5 .25 */
+		ks0127_and_or(sd, KS_VERTIC, 0x0f, 0x90);
+
+		/* chroma path delay */
+		ks0127_and_or(sd, KS_CHROMB, 0x0f, 0x90);
+
+		ks0127_write(sd, KS_UGAIN, reg_defaults[KS_UGAIN]);
+		ks0127_write(sd, KS_VGAIN, reg_defaults[KS_VGAIN]);
+		ks0127_write(sd, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
+		ks0127_write(sd, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
 		break;
 
-	case VIDIOC_INT_S_VIDEO_ROUTING:
-		switch (route->input) {
-		case KS_INPUT_COMPOSITE_1:
-		case KS_INPUT_COMPOSITE_2:
-		case KS_INPUT_COMPOSITE_3:
-		case KS_INPUT_COMPOSITE_4:
-		case KS_INPUT_COMPOSITE_5:
-		case KS_INPUT_COMPOSITE_6:
-			v4l_dbg(1, debug, c,
-				"VIDIOC_S_INPUT %d: Composite\n", *iarg);
-			/* autodetect 50/60 Hz */
-			ks0127_and_or(c, KS_CMDA,   0xfc, 0x00);
-			/* VSE=0 */
-			ks0127_and_or(c, KS_CMDA,   ~0x40, 0x00);
-			/* set input line */
-			ks0127_and_or(c, KS_CMDB,   0xb0, *iarg);
-			/* non-freerunning mode */
-			ks0127_and_or(c, KS_CMDC,   0x70, 0x0a);
-			/* analog input */
-			ks0127_and_or(c, KS_CMDD,   0x03, 0x00);
-			/* enable chroma demodulation */
-			ks0127_and_or(c, KS_CTRACK, 0xcf, 0x00);
-			/* chroma trap, HYBWR=1 */
-			ks0127_and_or(c, KS_LUMA,   0x00,
-				       (reg_defaults[KS_LUMA])|0x0c);
-			/* scaler fullbw, luma comb off */
-			ks0127_and_or(c, KS_VERTIA, 0x08, 0x81);
-			/* manual chroma comb .25 .5 .25 */
-			ks0127_and_or(c, KS_VERTIC, 0x0f, 0x90);
-
-			/* chroma path delay */
-			ks0127_and_or(c, KS_CHROMB, 0x0f, 0x90);
-
-			ks0127_write(c, KS_UGAIN, reg_defaults[KS_UGAIN]);
-			ks0127_write(c, KS_VGAIN, reg_defaults[KS_VGAIN]);
-			ks0127_write(c, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
-			ks0127_write(c, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
-			break;
-
-		case KS_INPUT_SVIDEO_1:
-		case KS_INPUT_SVIDEO_2:
-		case KS_INPUT_SVIDEO_3:
-			v4l_dbg(1, debug, c,
-				"VIDIOC_S_INPUT %d: S-Video\n", *iarg);
-			/* autodetect 50/60 Hz */
-			ks0127_and_or(c, KS_CMDA,   0xfc, 0x00);
-			/* VSE=0 */
-			ks0127_and_or(c, KS_CMDA,   ~0x40, 0x00);
-			/* set input line */
-			ks0127_and_or(c, KS_CMDB,   0xb0, *iarg);
-			/* non-freerunning mode */
-			ks0127_and_or(c, KS_CMDC,   0x70, 0x0a);
-			/* analog input */
-			ks0127_and_or(c, KS_CMDD,   0x03, 0x00);
-			/* enable chroma demodulation */
-			ks0127_and_or(c, KS_CTRACK, 0xcf, 0x00);
-			ks0127_and_or(c, KS_LUMA, 0x00,
-				       reg_defaults[KS_LUMA]);
-			/* disable luma comb */
-			ks0127_and_or(c, KS_VERTIA, 0x08,
-				       (reg_defaults[KS_VERTIA]&0xf0)|0x01);
-			ks0127_and_or(c, KS_VERTIC, 0x0f,
-				       reg_defaults[KS_VERTIC]&0xf0);
-
-			ks0127_and_or(c, KS_CHROMB, 0x0f,
-				       reg_defaults[KS_CHROMB]&0xf0);
-
-			ks0127_write(c, KS_UGAIN, reg_defaults[KS_UGAIN]);
-			ks0127_write(c, KS_VGAIN, reg_defaults[KS_VGAIN]);
-			ks0127_write(c, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
-			ks0127_write(c, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
-			break;
-
-		case KS_INPUT_YUV656:
-			v4l_dbg(1, debug, c,
-				"VIDIOC_S_INPUT 15: YUV656\n");
-			if (ks->norm & V4L2_STD_525_60)
-				/* force 60 Hz */
-				ks0127_and_or(c, KS_CMDA,   0xfc, 0x03);
-			else
-				/* force 50 Hz */
-				ks0127_and_or(c, KS_CMDA,   0xfc, 0x02);
-
-			ks0127_and_or(c, KS_CMDA,   0xff, 0x40); /* VSE=1 */
-			/* set input line and VALIGN */
-			ks0127_and_or(c, KS_CMDB,   0xb0, (*iarg | 0x40));
-			/* freerunning mode, */
-			/* TSTGEN = 1 TSTGFR=11 TSTGPH=0 TSTGPK=0  VMEM=1*/
-			ks0127_and_or(c, KS_CMDC,   0x70, 0x87);
-			/* digital input, SYNDIR = 0 INPSL=01 CLKDIR=0 EAV=0 */
-			ks0127_and_or(c, KS_CMDD,   0x03, 0x08);
-			/* disable chroma demodulation */
-			ks0127_and_or(c, KS_CTRACK, 0xcf, 0x30);
-			/* HYPK =01 CTRAP = 0 HYBWR=0 PED=1 RGBH=1 UNIT=1 */
-			ks0127_and_or(c, KS_LUMA,   0x00, 0x71);
-			ks0127_and_or(c, KS_VERTIC, 0x0f,
-				       reg_defaults[KS_VERTIC]&0xf0);
-
-			/* scaler fullbw, luma comb off */
-			ks0127_and_or(c, KS_VERTIA, 0x08, 0x81);
-
-			ks0127_and_or(c, KS_CHROMB, 0x0f,
-				       reg_defaults[KS_CHROMB]&0xf0);
-
-			ks0127_and_or(c, KS_CON, 0x00, 0x00);
-			ks0127_and_or(c, KS_BRT, 0x00, 32);	/* spec: 34 */
-				/* spec: 229 (e5) */
-			ks0127_and_or(c, KS_SAT, 0x00, 0xe8);
-			ks0127_and_or(c, KS_HUE, 0x00, 0);
-
-			ks0127_and_or(c, KS_UGAIN, 0x00, 238);
-			ks0127_and_or(c, KS_VGAIN, 0x00, 0x00);
-
-			/*UOFF:0x30, VOFF:0x30, TSTCGN=1 */
-			ks0127_and_or(c, KS_UVOFFH, 0x00, 0x4f);
-			ks0127_and_or(c, KS_UVOFFL, 0x00, 0x00);
-			break;
-
-		default:
-			v4l_dbg(1, debug, c,
-				"VIDIOC_INT_S_VIDEO_ROUTING: Unknown input %d\n", route->input);
-			break;
-		}
-
-		/* hack: CDMLPF sometimes spontaneously switches on; */
-		/* force back off */
-		ks0127_write(c, KS_DEMOD, reg_defaults[KS_DEMOD]);
+	case KS_INPUT_SVIDEO_1:
+	case KS_INPUT_SVIDEO_2:
+	case KS_INPUT_SVIDEO_3:
+		v4l2_dbg(1, debug, sd,
+			"VIDIOC_S_INPUT %d: S-Video\n", route->input);
+		/* autodetect 50/60 Hz */
+		ks0127_and_or(sd, KS_CMDA,   0xfc, 0x00);
+		/* VSE=0 */
+		ks0127_and_or(sd, KS_CMDA,   ~0x40, 0x00);
+		/* set input line */
+		ks0127_and_or(sd, KS_CMDB,   0xb0, route->input);
+		/* non-freerunning mode */
+		ks0127_and_or(sd, KS_CMDC,   0x70, 0x0a);
+		/* analog input */
+		ks0127_and_or(sd, KS_CMDD,   0x03, 0x00);
+		/* enable chroma demodulation */
+		ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x00);
+		ks0127_and_or(sd, KS_LUMA, 0x00,
+			       reg_defaults[KS_LUMA]);
+		/* disable luma comb */
+		ks0127_and_or(sd, KS_VERTIA, 0x08,
+			       (reg_defaults[KS_VERTIA]&0xf0)|0x01);
+		ks0127_and_or(sd, KS_VERTIC, 0x0f,
+			       reg_defaults[KS_VERTIC]&0xf0);
+
+		ks0127_and_or(sd, KS_CHROMB, 0x0f,
+			       reg_defaults[KS_CHROMB]&0xf0);
+
+		ks0127_write(sd, KS_UGAIN, reg_defaults[KS_UGAIN]);
+		ks0127_write(sd, KS_VGAIN, reg_defaults[KS_VGAIN]);
+		ks0127_write(sd, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
+		ks0127_write(sd, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
 		break;
 
-	case VIDIOC_S_STD: /* sam This block mixes old and new norm names... */
-		/* Set to automatic SECAM/Fsc mode */
-		ks0127_and_or(c, KS_DEMOD, 0xf0, 0x00);
-
-		ks->norm = *istd;
-
-		if (*istd & V4L2_STD_NTSC) {
-			v4l_dbg(1, debug, c,
-				"VIDIOC_S_STD: NTSC_M\n");
-			ks0127_and_or(c, KS_CHROMA, 0x9f, 0x20);
-			ks->format_height = 240;
-			ks->format_width = 704;
-		} else if (*istd & V4L2_STD_PAL_N) {
-			v4l_dbg(1, debug, c,
-				"KS0127_SET_NORM: NTSC_N (fixme)\n");
-			ks0127_and_or(c, KS_CHROMA, 0x9f, 0x40);
-			ks->format_height = 240;
-			ks->format_width = 704;
-		} else if (*istd & V4L2_STD_PAL) {
-			v4l_dbg(1, debug, c,
-				"VIDIOC_S_STD: PAL_N\n");
-			ks0127_and_or(c, KS_CHROMA, 0x9f, 0x20);
-			ks->format_height = 290;
-			ks->format_width = 704;
-		} else if (*istd & V4L2_STD_PAL_M) {
-			v4l_dbg(1, debug, c,
-				"KS0127_SET_NORM: PAL_M (fixme)\n");
-			ks0127_and_or(c, KS_CHROMA, 0x9f, 0x40);
-			ks->format_height = 290;
-			ks->format_width = 704;
-		} else if (*istd & V4L2_STD_SECAM) {
-			v4l_dbg(1, debug, c,
-				"KS0127_SET_NORM: SECAM\n");
-			ks->format_height = 290;
-			ks->format_width = 704;
-
-			/* set to secam autodetection */
-			ks0127_and_or(c, KS_CHROMA, 0xdf, 0x20);
-			ks0127_and_or(c, KS_DEMOD, 0xf0, 0x00);
-			schedule_timeout_interruptible(HZ/10+1);
-
-			/* did it autodetect? */
-			if (!(ks0127_read(c, KS_DEMOD) & 0x40))
-				/* force to secam mode */
-				ks0127_and_or(c, KS_DEMOD, 0xf0, 0x0f);
-		} else {
-			v4l_dbg(1, debug, c,
-				"VIDIOC_S_STD: Unknown norm %llx\n", *istd);
-		}
+	case KS_INPUT_YUV656:
+		v4l2_dbg(1, debug, sd, "VIDIOC_S_INPUT 15: YUV656\n");
+		if (ks->norm & V4L2_STD_525_60)
+			/* force 60 Hz */
+			ks0127_and_or(sd, KS_CMDA,   0xfc, 0x03);
+		else
+			/* force 50 Hz */
+			ks0127_and_or(sd, KS_CMDA,   0xfc, 0x02);
+
+		ks0127_and_or(sd, KS_CMDA,   0xff, 0x40); /* VSE=1 */
+		/* set input line and VALIGN */
+		ks0127_and_or(sd, KS_CMDB,   0xb0, (route->input | 0x40));
+		/* freerunning mode, */
+		/* TSTGEN = 1 TSTGFR=11 TSTGPH=0 TSTGPK=0  VMEM=1*/
+		ks0127_and_or(sd, KS_CMDC,   0x70, 0x87);
+		/* digital input, SYNDIR = 0 INPSL=01 CLKDIR=0 EAV=0 */
+		ks0127_and_or(sd, KS_CMDD,   0x03, 0x08);
+		/* disable chroma demodulation */
+		ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x30);
+		/* HYPK =01 CTRAP = 0 HYBWR=0 PED=1 RGBH=1 UNIT=1 */
+		ks0127_and_or(sd, KS_LUMA,   0x00, 0x71);
+		ks0127_and_or(sd, KS_VERTIC, 0x0f,
+			       reg_defaults[KS_VERTIC]&0xf0);
+
+		/* scaler fullbw, luma comb off */
+		ks0127_and_or(sd, KS_VERTIA, 0x08, 0x81);
+
+		ks0127_and_or(sd, KS_CHROMB, 0x0f,
+			       reg_defaults[KS_CHROMB]&0xf0);
+
+		ks0127_and_or(sd, KS_CON, 0x00, 0x00);
+		ks0127_and_or(sd, KS_BRT, 0x00, 32);	/* spec: 34 */
+			/* spec: 229 (e5) */
+		ks0127_and_or(sd, KS_SAT, 0x00, 0xe8);
+		ks0127_and_or(sd, KS_HUE, 0x00, 0);
+
+		ks0127_and_or(sd, KS_UGAIN, 0x00, 238);
+		ks0127_and_or(sd, KS_VGAIN, 0x00, 0x00);
+
+		/*UOFF:0x30, VOFF:0x30, TSTCGN=1 */
+		ks0127_and_or(sd, KS_UVOFFH, 0x00, 0x4f);
+		ks0127_and_or(sd, KS_UVOFFL, 0x00, 0x00);
 		break;
 
-	case VIDIOC_QUERYCTRL:
-	{
-		return -EINVAL;
-	}
-
-	case VIDIOC_S_CTRL:
-		v4l_dbg(1, debug, c,
-			"VIDIOC_S_CTRL: not yet supported\n");
-		return -EINVAL;
-
-	case VIDIOC_G_CTRL:
-		v4l_dbg(1, debug, c,
-			"VIDIOC_G_CTRL: not yet supported\n");
-		return -EINVAL;
-
-	/* sam todo: KS0127_SET_BRIGHTNESS: Merge into VIDIOC_S_CTRL */
-	/* sam todo: KS0127_SET_CONTRAST: Merge into VIDIOC_S_CTRL */
-	/* sam todo: KS0127_SET_HUE: Merge into VIDIOC_S_CTRL? */
-	/* sam todo: KS0127_SET_SATURATION: Merge into VIDIOC_S_CTRL */
-	/* sam todo: KS0127_SET_AGC_MODE: */
-	/* sam todo: KS0127_SET_AGC: */
-	/* sam todo: KS0127_SET_CHROMA_MODE: */
-	/* sam todo: KS0127_SET_PIXCLK_MODE: */
-	/* sam todo: KS0127_SET_GAMMA_MODE: */
-	/* sam todo: KS0127_SET_UGAIN: */
-	/* sam todo: KS0127_SET_VGAIN: */
-	/* sam todo: KS0127_SET_INVALY: */
-	/* sam todo: KS0127_SET_INVALU: */
-	/* sam todo: KS0127_SET_INVALV: */
-	/* sam todo: KS0127_SET_UNUSEY: */
-	/* sam todo: KS0127_SET_UNUSEU: */
-	/* sam todo: KS0127_SET_UNUSEV: */
-	/* sam todo: KS0127_SET_VSALIGN_MODE: */
-
-	case VIDIOC_STREAMON:
-	case VIDIOC_STREAMOFF:
-	{
-		int enable = cmd == VIDIOC_STREAMON;
-
-		if (enable) {
-			v4l_dbg(1, debug, c,
-				"VIDIOC_STREAMON\n");
-			/* All output pins on */
-			ks0127_and_or(c, KS_OFMTA, 0xcf, 0x30);
-			/* Obey the OEN pin */
-			ks0127_and_or(c, KS_CDEM, 0x7f, 0x00);
-		} else {
-			v4l_dbg(1, debug, c,
-				"VIDIOC_STREAMOFF\n");
-			/* Video output pins off */
-			ks0127_and_or(c, KS_OFMTA, 0xcf, 0x00);
-			/* Ignore the OEN pin */
-			ks0127_and_or(c, KS_CDEM, 0x7f, 0x80);
-		}
+	default:
+		v4l2_dbg(1, debug, sd,
+			"VIDIOC_INT_S_VIDEO_ROUTING: Unknown input %d\n", route->input);
 		break;
 	}
 
-	/* sam todo: KS0127_SET_OUTPUT_MODE: */
-	/* sam todo: KS0127_SET_WIDTH: */
-	/* sam todo: KS0127_SET_HEIGHT: */
-	/* sam todo: KS0127_SET_HSCALE: */
-
-	case VIDIOC_QUERYSTD:
-	case VIDIOC_INT_G_INPUT_STATUS: {
-		int stat = V4L2_IN_ST_NO_SIGNAL;
-		v4l2_std_id std = V4L2_STD_ALL;
-		v4l_dbg(1, debug, c, "VIDIOC_QUERYSTD/VIDIOC_INT_G_INPUT_STATUS\n");
-		status = ks0127_read(c, KS_STAT);
-		if (!(status & 0x20))		 /* NOVID not set */
-			stat = 0;
-		if (!(status & 0x01))		      /* CLOCK set */
-			stat |= V4L2_IN_ST_NO_COLOR;
-		if ((status & 0x08))		   /* PALDET set */
-			std = V4L2_STD_PAL;
-		else
-			std = V4L2_STD_NTSC;
-		if (cmd == VIDIOC_QUERYSTD)
-			*istd = std;
-		else
-			*iarg = stat;
-		break;
+	/* hack: CDMLPF sometimes spontaneously switches on; */
+	/* force back off */
+	ks0127_write(sd, KS_DEMOD, reg_defaults[KS_DEMOD]);
+	return 0;
+}
+
+static int ks0127_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+	struct ks0127 *ks = to_ks0127(sd);
+
+	/* Set to automatic SECAM/Fsc mode */
+	ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x00);
+
+	ks->norm = std;
+	if (std & V4L2_STD_NTSC) {
+		v4l2_dbg(1, debug, sd,
+			"VIDIOC_S_STD: NTSC_M\n");
+		ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x20);
+	} else if (std & V4L2_STD_PAL_N) {
+		v4l2_dbg(1, debug, sd,
+			"KS0127_SET_NORM: NTSC_N (fixme)\n");
+		ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x40);
+	} else if (std & V4L2_STD_PAL) {
+		v4l2_dbg(1, debug, sd,
+			"VIDIOC_S_STD: PAL_N\n");
+		ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x20);
+	} else if (std & V4L2_STD_PAL_M) {
+		v4l2_dbg(1, debug, sd,
+			"KS0127_SET_NORM: PAL_M (fixme)\n");
+		ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x40);
+	} else if (std & V4L2_STD_SECAM) {
+		v4l2_dbg(1, debug, sd,
+			"KS0127_SET_NORM: SECAM\n");
+
+		/* set to secam autodetection */
+		ks0127_and_or(sd, KS_CHROMA, 0xdf, 0x20);
+		ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x00);
+		schedule_timeout_interruptible(HZ/10+1);
+
+		/* did it autodetect? */
+		if (!(ks0127_read(sd, KS_DEMOD) & 0x40))
+			/* force to secam mode */
+			ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x0f);
+	} else {
+		v4l2_dbg(1, debug, sd,
+			"VIDIOC_S_STD: Unknown norm %llx\n", std);
 	}
+	return 0;
+}
 
-	/* Catch any unknown command */
-	default:
-		v4l_dbg(1, debug, c, "unknown: 0x%08x\n", cmd);
-		return -EINVAL;
+static int ks0127_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	v4l2_dbg(1, debug, sd, "s_stream(%d)\n", enable);
+	if (enable) {
+		/* All output pins on */
+		ks0127_and_or(sd, KS_OFMTA, 0xcf, 0x30);
+		/* Obey the OEN pin */
+		ks0127_and_or(sd, KS_CDEM, 0x7f, 0x00);
+	} else {
+		/* Video output pins off */
+		ks0127_and_or(sd, KS_OFMTA, 0xcf, 0x00);
+		/* Ignore the OEN pin */
+		ks0127_and_or(sd, KS_CDEM, 0x7f, 0x80);
 	}
 	return 0;
 }
 
+static int ks0127_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd)
+{
+	int stat = V4L2_IN_ST_NO_SIGNAL;
+	u8 status;
+	v4l2_std_id std = V4L2_STD_ALL;
+
+	v4l2_dbg(1, debug, sd, "VIDIOC_QUERYSTD/VIDIOC_INT_G_INPUT_STATUS\n");
+	status = ks0127_read(sd, KS_STAT);
+	if (!(status & 0x20))		 /* NOVID not set */
+		stat = 0;
+	if (!(status & 0x01))		      /* CLOCK set */
+		stat |= V4L2_IN_ST_NO_COLOR;
+	if ((status & 0x08))		   /* PALDET set */
+		std = V4L2_STD_PAL;
+	else
+		std = V4L2_STD_NTSC;
+	if (pstd)
+		*pstd = std;
+	if (pstatus)
+		*pstatus = stat;
+	return 0;
+}
 
-/* Addresses to scan */
-#define I2C_KS0127_ADDON   0xD8
-#define I2C_KS0127_ONBOARD 0xDA
+static int ks0127_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+	return ks0127_status(sd, NULL, std);
+}
 
-static unsigned short normal_i2c[] = {
-	I2C_KS0127_ADDON >> 1,
-	I2C_KS0127_ONBOARD >> 1,
-	I2C_CLIENT_END
+static int ks0127_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+	return ks0127_status(sd, status, NULL);
+}
+
+static int ks0127_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ks0127 *ks = to_ks0127(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, ks->ident, 0);
+}
+
+static int ks0127_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops ks0127_core_ops = {
+	.g_chip_ident = ks0127_g_chip_ident,
 };
 
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_tuner_ops ks0127_tuner_ops = {
+	.s_std = ks0127_s_std,
+};
+
+static const struct v4l2_subdev_video_ops ks0127_video_ops = {
+	.s_routing = ks0127_s_routing,
+	.s_stream = ks0127_s_stream,
+	.querystd = ks0127_querystd,
+	.g_input_status = ks0127_g_input_status,
+};
 
-static int ks0127_probe(struct i2c_client *c, const struct i2c_device_id *id)
+static const struct v4l2_subdev_ops ks0127_ops = {
+	.core = &ks0127_core_ops,
+	.tuner = &ks0127_tuner_ops,
+	.video = &ks0127_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
+
+
+static int ks0127_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
 	struct ks0127 *ks;
+	struct v4l2_subdev *sd;
 
-	v4l_info(c, "%s chip found @ 0x%x (%s)\n",
-		c->addr == (I2C_KS0127_ADDON >> 1) ? "addon" : "on-board",
-		c->addr << 1, c->adapter->name);
+	v4l_info(client, "%s chip found @ 0x%x (%s)\n",
+		client->addr == (I2C_KS0127_ADDON >> 1) ? "addon" : "on-board",
+		client->addr << 1, client->adapter->name);
 
 	ks = kzalloc(sizeof(*ks), GFP_KERNEL);
 	if (ks == NULL)
 		return -ENOMEM;
-
-	i2c_set_clientdata(c, ks);
-
-	ks->ks_type = KS_TYPE_UNKNOWN;
+	sd = &ks->sd;
+	v4l2_i2c_subdev_init(sd, client, &ks0127_ops);
 
 	/* power up */
 	init_reg_defaults();
-	ks0127_write(c, KS_CMDA, 0x2c);
+	ks0127_write(sd, KS_CMDA, 0x2c);
 	mdelay(10);
 
 	/* reset the device */
-	ks0127_reset(c);
+	ks0127_init(sd);
 	return 0;
 }
 
-static int ks0127_remove(struct i2c_client *c)
+static int ks0127_remove(struct i2c_client *client)
 {
-	struct ks0127 *ks = i2c_get_clientdata(c);
-
-	ks0127_write(c, KS_OFMTA, 0x20); /* tristate */
-	ks0127_write(c, KS_CMDA, 0x2c | 0x80); /* power down */
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
 
-	kfree(ks);
+	v4l2_device_unregister_subdev(sd);
+	ks0127_write(sd, KS_OFMTA, 0x20); /* tristate */
+	ks0127_write(sd, KS_CMDA, 0x2c | 0x80); /* power down */
+	kfree(to_ks0127(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index 69e3092fd288..b5ed91a4ce92 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -82,6 +82,11 @@ enum {
 	/* module bt866: just ident 866 */
 	V4L2_IDENT_BT866 = 866,
 
+	/* module ks0127: reserved range 1120-1129 */
+	V4L2_IDENT_KS0122S = 1122,
+	V4L2_IDENT_KS0127  = 1127,
+	V4L2_IDENT_KS0127B = 1128,
+
 	/* module vp27smpx: just ident 2700 */
 	V4L2_IDENT_VP27SMPX = 2700,
 
-- 
cgit v1.2.3


From e7946844e676b5d33876d36db92f386a9907a0f4 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 19 Feb 2009 12:24:27 -0300
Subject: V4L/DVB (10724): saa7110: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
[mchehab@redhat.com: fix merge conflict with removal of v4l2_ctrl_query_fill_std()]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/saa7110.c   | 468 +++++++++++++++++++++-------------------
 include/media/v4l2-chip-ident.h |   4 +-
 2 files changed, 251 insertions(+), 221 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c
index 9ef6b2bb1b77..ea16e3cf1793 100644
--- a/drivers/media/video/saa7110.c
+++ b/drivers/media/video/saa7110.c
@@ -33,15 +33,19 @@
 #include <linux/wait.h>
 #include <asm/uaccess.h>
 #include <linux/i2c.h>
-#include <linux/videodev.h>
-#include <linux/video_decoder.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
 MODULE_AUTHOR("Pauline Middelink");
 MODULE_LICENSE("GPL");
 
+static unsigned short normal_i2c[] = { 0x9c >> 1, 0x9e >> 1, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD;
+
 static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
@@ -52,6 +56,7 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
 #define SAA7110_NR_REG		0x35
 
 struct saa7110 {
+	struct v4l2_subdev sd;
 	u8 reg[SAA7110_NR_REG];
 
 	v4l2_std_id norm;
@@ -65,20 +70,28 @@ struct saa7110 {
 	wait_queue_head_t wq;
 };
 
+static inline struct saa7110 *to_saa7110(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct saa7110, sd);
+}
+
 /* ----------------------------------------------------------------------- */
 /* I2C support functions						   */
 /* ----------------------------------------------------------------------- */
 
-static int saa7110_write(struct i2c_client *client, u8 reg, u8 value)
+static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
 {
-	struct saa7110 *decoder = i2c_get_clientdata(client);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct saa7110 *decoder = to_saa7110(sd);
 
 	decoder->reg[reg] = value;
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
-static int saa7110_write_block(struct i2c_client *client, const u8 *data, unsigned int len)
+static int saa7110_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct saa7110 *decoder = to_saa7110(sd);
 	int ret = -1;
 	u8 reg = *data;		/* first register to write to */
 
@@ -89,15 +102,13 @@ static int saa7110_write_block(struct i2c_client *client, const u8 *data, unsign
 	/* the saa7110 has an autoincrement function, use it if
 	 * the adapter understands raw I2C */
 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
-		struct saa7110 *decoder = i2c_get_clientdata(client);
-
 		ret = i2c_master_send(client, data, len);
 
 		/* Cache the written data */
 		memcpy(decoder->reg + reg, data + 1, len - 1);
 	} else {
 		for (++data, --len; len; len--) {
-			ret = saa7110_write(client, reg++, *data++);
+			ret = saa7110_write(sd, reg++, *data++);
 			if (ret < 0)
 				break;
 		}
@@ -106,8 +117,10 @@ static int saa7110_write_block(struct i2c_client *client, const u8 *data, unsign
 	return ret;
 }
 
-static inline int saa7110_read(struct i2c_client *client)
+static inline int saa7110_read(struct v4l2_subdev *sd)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
 	return i2c_smbus_read_byte(client);
 }
 
@@ -115,11 +128,11 @@ static inline int saa7110_read(struct i2c_client *client)
 /* SAA7110 functions							   */
 /* ----------------------------------------------------------------------- */
 
-#define FRESP_06H_COMPST 0x03	//0x13
-#define FRESP_06H_SVIDEO 0x83	//0xC0
+#define FRESP_06H_COMPST 0x03	/*0x13*/
+#define FRESP_06H_SVIDEO 0x83	/*0xC0*/
 
 
-static int saa7110_selmux(struct i2c_client *client, int chan)
+static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
 {
 	static const unsigned char modes[9][8] = {
 		/* mode 0 */
@@ -150,17 +163,17 @@ static int saa7110_selmux(struct i2c_client *client, int chan)
 		{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
 			      0x44, 0x75, 0x21}
 	};
-	struct saa7110 *decoder = i2c_get_clientdata(client);
+	struct saa7110 *decoder = to_saa7110(sd);
 	const unsigned char *ptr = modes[chan];
 
-	saa7110_write(client, 0x06, ptr[0]);	/* Luminance control    */
-	saa7110_write(client, 0x20, ptr[1]);	/* Analog Control #1    */
-	saa7110_write(client, 0x21, ptr[2]);	/* Analog Control #2    */
-	saa7110_write(client, 0x22, ptr[3]);	/* Mixer Control #1     */
-	saa7110_write(client, 0x2C, ptr[4]);	/* Mixer Control #2     */
-	saa7110_write(client, 0x30, ptr[5]);	/* ADCs gain control    */
-	saa7110_write(client, 0x31, ptr[6]);	/* Mixer Control #3     */
-	saa7110_write(client, 0x21, ptr[7]);	/* Analog Control #2    */
+	saa7110_write(sd, 0x06, ptr[0]);	/* Luminance control    */
+	saa7110_write(sd, 0x20, ptr[1]);	/* Analog Control #1    */
+	saa7110_write(sd, 0x21, ptr[2]);	/* Analog Control #2    */
+	saa7110_write(sd, 0x22, ptr[3]);	/* Mixer Control #1     */
+	saa7110_write(sd, 0x2C, ptr[4]);	/* Mixer Control #2     */
+	saa7110_write(sd, 0x30, ptr[5]);	/* ADCs gain control    */
+	saa7110_write(sd, 0x31, ptr[6]);	/* Mixer Control #3     */
+	saa7110_write(sd, 0x21, ptr[7]);	/* Analog Control #2    */
 	decoder->input = chan;
 
 	return 0;
@@ -176,250 +189,265 @@ static const unsigned char initseq[1 + SAA7110_NR_REG] = {
 	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
 };
 
-static v4l2_std_id determine_norm(struct i2c_client *client)
+static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
 {
 	DEFINE_WAIT(wait);
-	struct saa7110 *decoder = i2c_get_clientdata(client);
+	struct saa7110 *decoder = to_saa7110(sd);
 	int status;
 
 	/* mode changed, start automatic detection */
-	saa7110_write_block(client, initseq, sizeof(initseq));
-	saa7110_selmux(client, decoder->input);
+	saa7110_write_block(sd, initseq, sizeof(initseq));
+	saa7110_selmux(sd, decoder->input);
 	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
 	schedule_timeout(msecs_to_jiffies(250));
 	finish_wait(&decoder->wq, &wait);
-	status = saa7110_read(client);
+	status = saa7110_read(sd);
 	if (status & 0x40) {
-		v4l_dbg(1, debug, client, "status=0x%02x (no signal)\n", status);
-		return decoder->norm;	// no change
+		v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
+		return decoder->norm;	/* no change*/
 	}
 	if ((status & 3) == 0) {
-		saa7110_write(client, 0x06, 0x83);
+		saa7110_write(sd, 0x06, 0x83);
 		if (status & 0x20) {
-			v4l_dbg(1, debug, client, "status=0x%02x (NTSC/no color)\n", status);
-			//saa7110_write(client,0x2E,0x81);
+			v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
+			/*saa7110_write(sd,0x2E,0x81);*/
 			return V4L2_STD_NTSC;
 		}
-		v4l_dbg(1, debug, client, "status=0x%02x (PAL/no color)\n", status);
-		//saa7110_write(client,0x2E,0x9A);
+		v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
+		/*saa7110_write(sd,0x2E,0x9A);*/
 		return V4L2_STD_PAL;
 	}
-	//saa7110_write(client,0x06,0x03);
+	/*saa7110_write(sd,0x06,0x03);*/
 	if (status & 0x20) {	/* 60Hz */
-		v4l_dbg(1, debug, client, "status=0x%02x (NTSC)\n", status);
-		saa7110_write(client, 0x0D, 0x86);
-		saa7110_write(client, 0x0F, 0x50);
-		saa7110_write(client, 0x11, 0x2C);
-		//saa7110_write(client,0x2E,0x81);
+		v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
+		saa7110_write(sd, 0x0D, 0x86);
+		saa7110_write(sd, 0x0F, 0x50);
+		saa7110_write(sd, 0x11, 0x2C);
+		/*saa7110_write(sd,0x2E,0x81);*/
 		return V4L2_STD_NTSC;
 	}
 
 	/* 50Hz -> PAL/SECAM */
-	saa7110_write(client, 0x0D, 0x86);
-	saa7110_write(client, 0x0F, 0x10);
-	saa7110_write(client, 0x11, 0x59);
-	//saa7110_write(client,0x2E,0x9A);
+	saa7110_write(sd, 0x0D, 0x86);
+	saa7110_write(sd, 0x0F, 0x10);
+	saa7110_write(sd, 0x11, 0x59);
+	/*saa7110_write(sd,0x2E,0x9A);*/
 
 	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
 	schedule_timeout(msecs_to_jiffies(250));
 	finish_wait(&decoder->wq, &wait);
 
-	status = saa7110_read(client);
+	status = saa7110_read(sd);
 	if ((status & 0x03) == 0x01) {
-		v4l_dbg(1, debug, client, "status=0x%02x (SECAM)\n", status);
-		saa7110_write(client, 0x0D, 0x87);
+		v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
+		saa7110_write(sd, 0x0D, 0x87);
 		return V4L2_STD_SECAM;
 	}
-	v4l_dbg(1, debug, client, "status=0x%02x (PAL)\n", status);
+	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
 	return V4L2_STD_PAL;
 }
 
-static int
-saa7110_command (struct i2c_client *client,
-		 unsigned int       cmd,
-		 void              *arg)
+static int saa7110_g_input_status(struct v4l2_subdev *sd, u32 *pstatus)
 {
-	struct saa7110 *decoder = i2c_get_clientdata(client);
-	struct v4l2_routing *route = arg;
-	v4l2_std_id std;
-	int v;
-
-	switch (cmd) {
-	case VIDIOC_INT_INIT:
-		//saa7110_write_block(client, initseq, sizeof(initseq));
-		break;
+	struct saa7110 *decoder = to_saa7110(sd);
+	int res = V4L2_IN_ST_NO_SIGNAL;
+	int status = saa7110_read(sd);
+
+	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
+		       status, decoder->norm);
+	if (!(status & 0x40))
+		res = 0;
+	if (!(status & 0x03))
+		res |= V4L2_IN_ST_NO_COLOR;
+
+	*pstatus = res;
+	return 0;
+}
 
-	case VIDIOC_INT_G_INPUT_STATUS:
-	{
-		int res = V4L2_IN_ST_NO_SIGNAL;
-		int status;
+static int saa7110_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+	*(v4l2_std_id *)std = determine_norm(sd);
+	return 0;
+}
 
-		status = saa7110_read(client);
-		v4l_dbg(1, debug, client, "status=0x%02x norm=%llx\n",
-			       status, decoder->norm);
-		if (!(status & 0x40))
-			res = 0;
-		if (!(status & 0x03))
-			res |= V4L2_IN_ST_NO_COLOR;
+static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+	struct saa7110 *decoder = to_saa7110(sd);
+
+	if (decoder->norm != std) {
+		decoder->norm = std;
+		/*saa7110_write(sd, 0x06, 0x03);*/
+		if (std & V4L2_STD_NTSC) {
+			saa7110_write(sd, 0x0D, 0x86);
+			saa7110_write(sd, 0x0F, 0x50);
+			saa7110_write(sd, 0x11, 0x2C);
+			/*saa7110_write(sd, 0x2E, 0x81);*/
+			v4l2_dbg(1, debug, sd, "switched to NTSC\n");
+		} else if (std & V4L2_STD_PAL) {
+			saa7110_write(sd, 0x0D, 0x86);
+			saa7110_write(sd, 0x0F, 0x10);
+			saa7110_write(sd, 0x11, 0x59);
+			/*saa7110_write(sd, 0x2E, 0x9A);*/
+			v4l2_dbg(1, debug, sd, "switched to PAL\n");
+		} else if (std & V4L2_STD_SECAM) {
+			saa7110_write(sd, 0x0D, 0x87);
+			saa7110_write(sd, 0x0F, 0x10);
+			saa7110_write(sd, 0x11, 0x59);
+			/*saa7110_write(sd, 0x2E, 0x9A);*/
+			v4l2_dbg(1, debug, sd, "switched to SECAM\n");
+		} else {
+			return -EINVAL;
+		}
+	}
+	return 0;
+}
 
-		*(int *) arg = res;
-		break;
+static int saa7110_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+	struct saa7110 *decoder = to_saa7110(sd);
+
+	if (route->input < 0 || route->input >= SAA7110_MAX_INPUT) {
+		v4l2_dbg(1, debug, sd, "input=%d not available\n", route->input);
+		return -EINVAL;
 	}
+	if (decoder->input != route->input) {
+		saa7110_selmux(sd, route->input);
+		v4l2_dbg(1, debug, sd, "switched to input=%d\n", route->input);
+	}
+	return 0;
+}
 
-	case VIDIOC_QUERYSTD:
-	{
-		*(v4l2_std_id *)arg = determine_norm(client);
-		break;
+static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct saa7110 *decoder = to_saa7110(sd);
+
+	if (decoder->enable != enable) {
+		decoder->enable = enable;
+		saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
+		v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
 	}
+	return 0;
+}
 
-	case VIDIOC_S_STD:
-		std = *(v4l2_std_id *) arg;
-		if (decoder->norm != std) {
-			decoder->norm = std;
-			//saa7110_write(client, 0x06, 0x03);
-			if (std & V4L2_STD_NTSC) {
-				saa7110_write(client, 0x0D, 0x86);
-				saa7110_write(client, 0x0F, 0x50);
-				saa7110_write(client, 0x11, 0x2C);
-				//saa7110_write(client, 0x2E, 0x81);
-				v4l_dbg(1, debug, client, "switched to NTSC\n");
-			} else if (std & V4L2_STD_PAL) {
-				saa7110_write(client, 0x0D, 0x86);
-				saa7110_write(client, 0x0F, 0x10);
-				saa7110_write(client, 0x11, 0x59);
-				//saa7110_write(client, 0x2E, 0x9A);
-				v4l_dbg(1, debug, client, "switched to PAL\n");
-			} else if (std & V4L2_STD_SECAM) {
-				saa7110_write(client, 0x0D, 0x87);
-				saa7110_write(client, 0x0F, 0x10);
-				saa7110_write(client, 0x11, 0x59);
-				//saa7110_write(client, 0x2E, 0x9A);
-				v4l_dbg(1, debug, client, "switched to SECAM\n");
-			} else {
-				return -EINVAL;
-			}
-		}
-		break;
+static int saa7110_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+	switch (qc->id) {
+	case V4L2_CID_BRIGHTNESS:
+		return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
+	case V4L2_CID_CONTRAST:
+	case V4L2_CID_SATURATION:
+		return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
+	case V4L2_CID_HUE:
+		return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
 
-	case VIDIOC_INT_S_VIDEO_ROUTING:
-		if (route->input < 0 || route->input >= SAA7110_MAX_INPUT) {
-			v4l_dbg(1, debug, client, "input=%d not available\n", route->input);
-			return -EINVAL;
-		}
-		if (decoder->input != route->input) {
-			saa7110_selmux(client, route->input);
-			v4l_dbg(1, debug, client, "switched to input=%d\n", route->input);
-		}
+static int saa7110_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct saa7110 *decoder = to_saa7110(sd);
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		ctrl->value = decoder->bright;
+		break;
+	case V4L2_CID_CONTRAST:
+		ctrl->value = decoder->contrast;
+		break;
+	case V4L2_CID_SATURATION:
+		ctrl->value = decoder->sat;
+		break;
+	case V4L2_CID_HUE:
+		ctrl->value = decoder->hue;
 		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
 
-	case VIDIOC_STREAMON:
-	case VIDIOC_STREAMOFF:
-		v = cmd == VIDIOC_STREAMON;
-		if (decoder->enable != v) {
-			decoder->enable = v;
-			saa7110_write(client, 0x0E, v ? 0x18 : 0x80);
-			v4l_dbg(1, debug, client, "YUV %s\n", v ? "on" : "off");
+static int saa7110_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct saa7110 *decoder = to_saa7110(sd);
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		if (decoder->bright != ctrl->value) {
+			decoder->bright = ctrl->value;
+			saa7110_write(sd, 0x19, decoder->bright);
 		}
 		break;
-
-	case VIDIOC_QUERYCTRL:
-	{
-		struct v4l2_queryctrl *qc = arg;
-
-		switch (qc->id) {
-	        case V4L2_CID_BRIGHTNESS:
-	                return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
-	        case V4L2_CID_CONTRAST:
-	        case V4L2_CID_SATURATION:
-	                return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
-	        case V4L2_CID_HUE:
-	                return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
-		default:
-			return -EINVAL;
+	case V4L2_CID_CONTRAST:
+		if (decoder->contrast != ctrl->value) {
+			decoder->contrast = ctrl->value;
+			saa7110_write(sd, 0x13, decoder->contrast);
 		}
 		break;
-	}
-
-	case VIDIOC_G_CTRL:
-	{
-		struct v4l2_control *ctrl = arg;
-
-		switch (ctrl->id) {
-		case V4L2_CID_BRIGHTNESS:
-			ctrl->value = decoder->bright;
-			break;
-		case V4L2_CID_CONTRAST:
-			ctrl->value = decoder->contrast;
-			break;
-		case V4L2_CID_SATURATION:
-			ctrl->value = decoder->sat;
-			break;
-		case V4L2_CID_HUE:
-			ctrl->value = decoder->hue;
-			break;
-		default:
-			return -EINVAL;
+	case V4L2_CID_SATURATION:
+		if (decoder->sat != ctrl->value) {
+			decoder->sat = ctrl->value;
+			saa7110_write(sd, 0x12, decoder->sat);
 		}
 		break;
-	}
-
-	case VIDIOC_S_CTRL:
-	{
-		struct v4l2_control *ctrl = arg;
-
-		switch (ctrl->id) {
-		case V4L2_CID_BRIGHTNESS:
-			if (decoder->bright != ctrl->value) {
-				decoder->bright = ctrl->value;
-				saa7110_write(client, 0x19, decoder->bright);
-			}
-			break;
-		case V4L2_CID_CONTRAST:
-			if (decoder->contrast != ctrl->value) {
-				decoder->contrast = ctrl->value;
-				saa7110_write(client, 0x13, decoder->contrast);
-			}
-			break;
-		case V4L2_CID_SATURATION:
-			if (decoder->sat != ctrl->value) {
-				decoder->sat = ctrl->value;
-				saa7110_write(client, 0x12, decoder->sat);
-			}
-			break;
-		case V4L2_CID_HUE:
-			if (decoder->hue != ctrl->value) {
-				decoder->hue = ctrl->value;
-				saa7110_write(client, 0x07, decoder->hue);
-			}
-			break;
-		default:
-			return -EINVAL;
+	case V4L2_CID_HUE:
+		if (decoder->hue != ctrl->value) {
+			decoder->hue = ctrl->value;
+			saa7110_write(sd, 0x07, decoder->hue);
 		}
 		break;
-	}
-
 	default:
-		v4l_dbg(1, debug, client, "unknown command %08x\n", cmd);
 		return -EINVAL;
 	}
 	return 0;
 }
 
+static int saa7110_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7110, 0);
+}
+
+static int saa7110_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
 /* ----------------------------------------------------------------------- */
 
-/*
- * Generic i2c probe
- * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
- */
+static const struct v4l2_subdev_core_ops saa7110_core_ops = {
+	.g_chip_ident = saa7110_g_chip_ident,
+	.g_ctrl = saa7110_g_ctrl,
+	.s_ctrl = saa7110_s_ctrl,
+	.queryctrl = saa7110_queryctrl,
+};
 
-static unsigned short normal_i2c[] = { 0x9c >> 1, 0x9e >> 1, I2C_CLIENT_END };
+static const struct v4l2_subdev_tuner_ops saa7110_tuner_ops = {
+	.s_std = saa7110_s_std,
+};
 
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_video_ops saa7110_video_ops = {
+	.s_routing = saa7110_s_routing,
+	.s_stream = saa7110_s_stream,
+	.querystd = saa7110_querystd,
+	.g_input_status = saa7110_g_input_status,
+};
+
+static const struct v4l2_subdev_ops saa7110_ops = {
+	.core = &saa7110_core_ops,
+	.tuner = &saa7110_tuner_ops,
+	.video = &saa7110_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
 
 static int saa7110_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct saa7110 *decoder;
+	struct v4l2_subdev *sd;
 	int rv;
 
 	/* Check if the adapter supports the needed features */
@@ -433,6 +461,8 @@ static int saa7110_probe(struct i2c_client *client,
 	decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
 	if (!decoder)
 		return -ENOMEM;
+	sd = &decoder->sd;
+	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
 	decoder->norm = V4L2_STD_PAL;
 	decoder->input = 0;
 	decoder->enable = 1;
@@ -441,30 +471,29 @@ static int saa7110_probe(struct i2c_client *client,
 	decoder->hue = 32768;
 	decoder->sat = 32768;
 	init_waitqueue_head(&decoder->wq);
-	i2c_set_clientdata(client, decoder);
 
-	rv = saa7110_write_block(client, initseq, sizeof(initseq));
+	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
 	if (rv < 0) {
-		v4l_dbg(1, debug, client, "init status %d\n", rv);
+		v4l2_dbg(1, debug, sd, "init status %d\n", rv);
 	} else {
 		int ver, status;
-		saa7110_write(client, 0x21, 0x10);
-		saa7110_write(client, 0x0e, 0x18);
-		saa7110_write(client, 0x0D, 0x04);
-		ver = saa7110_read(client);
-		saa7110_write(client, 0x0D, 0x06);
-		//mdelay(150);
-		status = saa7110_read(client);
-		v4l_dbg(1, debug, client, "version %x, status=0x%02x\n",
+		saa7110_write(sd, 0x21, 0x10);
+		saa7110_write(sd, 0x0e, 0x18);
+		saa7110_write(sd, 0x0D, 0x04);
+		ver = saa7110_read(sd);
+		saa7110_write(sd, 0x0D, 0x06);
+		/*mdelay(150);*/
+		status = saa7110_read(sd);
+		v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
 			       ver, status);
-		saa7110_write(client, 0x0D, 0x86);
-		saa7110_write(client, 0x0F, 0x10);
-		saa7110_write(client, 0x11, 0x59);
-		//saa7110_write(client, 0x2E, 0x9A);
+		saa7110_write(sd, 0x0D, 0x86);
+		saa7110_write(sd, 0x0F, 0x10);
+		saa7110_write(sd, 0x11, 0x59);
+		/*saa7110_write(sd, 0x2E, 0x9A);*/
 	}
 
-	//saa7110_selmux(client,0);
-	//determine_norm(client);
+	/*saa7110_selmux(sd,0);*/
+	/*determine_norm(sd);*/
 	/* setup and implicit mode 0 select has been performed */
 
 	return 0;
@@ -472,7 +501,10 @@ static int saa7110_probe(struct i2c_client *client,
 
 static int saa7110_remove(struct i2c_client *client)
 {
-	kfree(i2c_get_clientdata(client));
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_saa7110(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index b5ed91a4ce92..f3fdada21963 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -37,10 +37,8 @@ enum {
 	/* module saa7110: just ident 100 */
 	V4L2_IDENT_SAA7110 = 100,
 
-	/* module saa7111: just ident 101 */
+	/* module saa7115: reserved range 101-149 */
 	V4L2_IDENT_SAA7111 = 101,
-
-	/* module saa7115: reserved range 102-149 */
 	V4L2_IDENT_SAA7113 = 103,
 	V4L2_IDENT_SAA7114 = 104,
 	V4L2_IDENT_SAA7115 = 105,
-- 
cgit v1.2.3


From 780d8e1552efb61122c269382b3fa8987aca3e89 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 19 Feb 2009 13:24:47 -0300
Subject: V4L/DVB (10725): saa7185: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/saa7185.c   | 217 ++++++++++++++++++++++------------------
 include/media/v4l2-chip-ident.h |   3 +
 2 files changed, 122 insertions(+), 98 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c
index fc51e6c9cb95..b4eb66253bc2 100644
--- a/drivers/media/video/saa7185.c
+++ b/drivers/media/video/saa7185.c
@@ -30,51 +30,61 @@
 #include <asm/uaccess.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
-#include <linux/videodev.h>
-#include <linux/video_encoder.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
 MODULE_AUTHOR("Dave Perks");
 MODULE_LICENSE("GPL");
 
-
 static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
+static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD;
+
 /* ----------------------------------------------------------------------- */
 
 struct saa7185 {
+	struct v4l2_subdev sd;
 	unsigned char reg[128];
 
 	v4l2_std_id norm;
-	int bright;
-	int contrast;
-	int hue;
-	int sat;
 };
 
+static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct saa7185, sd);
+}
+
 /* ----------------------------------------------------------------------- */
 
-static inline int saa7185_read(struct i2c_client *client)
+static inline int saa7185_read(struct v4l2_subdev *sd)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
 	return i2c_smbus_read_byte(client);
 }
 
-static int saa7185_write(struct i2c_client *client, u8 reg, u8 value)
+static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value)
 {
-	struct saa7185 *encoder = i2c_get_clientdata(client);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct saa7185 *encoder = to_saa7185(sd);
 
-	v4l_dbg(1, debug, client, "%02x set to %02x\n", reg, value);
+	v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value);
 	encoder->reg[reg] = value;
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
-static int saa7185_write_block(struct i2c_client *client,
+static int saa7185_write_block(struct v4l2_subdev *sd,
 		const u8 *data, unsigned int len)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct saa7185 *encoder = to_saa7185(sd);
 	int ret = -1;
 	u8 reg;
 
@@ -82,7 +92,6 @@ static int saa7185_write_block(struct i2c_client *client,
 	 * the adapter understands raw I2C */
 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
 		/* do raw I2C, not smbus compatible */
-		struct saa7185 *encoder = i2c_get_clientdata(client);
 		u8 block_data[32];
 		int block_len;
 
@@ -103,7 +112,7 @@ static int saa7185_write_block(struct i2c_client *client,
 		/* do some slow I2C emulation kind of thing */
 		while (len >= 2) {
 			reg = *data++;
-			ret = saa7185_write(client, reg, *data++);
+			ret = saa7185_write(sd, reg, *data++);
 			if (ret < 0)
 				break;
 			len -= 2;
@@ -212,101 +221,111 @@ static const unsigned char init_ntsc[] = {
 	0x66, 0x21,		/* FSC3 */
 };
 
-static int saa7185_command(struct i2c_client *client, unsigned cmd, void *arg)
+
+static int saa7185_init(struct v4l2_subdev *sd, u32 val)
+{
+	struct saa7185 *encoder = to_saa7185(sd);
+
+	saa7185_write_block(sd, init_common, sizeof(init_common));
+	if (encoder->norm & V4L2_STD_NTSC)
+		saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
+	else
+		saa7185_write_block(sd, init_pal, sizeof(init_pal));
+	return 0;
+}
+
+static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+	struct saa7185 *encoder = to_saa7185(sd);
+
+	if (std & V4L2_STD_NTSC)
+		saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
+	else if (std & V4L2_STD_PAL)
+		saa7185_write_block(sd, init_pal, sizeof(init_pal));
+	else
+		return -EINVAL;
+	encoder->norm = std;
+	return 0;
+}
+
+static int saa7185_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
 {
-	struct saa7185 *encoder = i2c_get_clientdata(client);
-
-	switch (cmd) {
-	case VIDIOC_INT_INIT:
-		saa7185_write_block(client, init_common,
-				    sizeof(init_common));
-		if (encoder->norm & V4L2_STD_NTSC)
-			saa7185_write_block(client, init_ntsc,
-					    sizeof(init_ntsc));
-		else
-			saa7185_write_block(client, init_pal,
-					    sizeof(init_pal));
+	struct saa7185 *encoder = to_saa7185(sd);
+
+	/* RJ: route->input = 0: input is from SA7111
+	 route->input = 1: input is from ZR36060 */
+
+	switch (route->input) {
+	case 0:
+		/* turn off colorbar */
+		saa7185_write(sd, 0x3a, 0x0f);
+		/* Switch RTCE to 1 */
+		saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08);
+		saa7185_write(sd, 0x6e, 0x01);
 		break;
 
-	case VIDIOC_INT_S_STD_OUTPUT:
-	{
-		v4l2_std_id *iarg = arg;
-
-		//saa7185_write_block(client, init_common, sizeof(init_common));
-
-		if (*iarg & V4L2_STD_NTSC)
-			saa7185_write_block(client, init_ntsc,
-					    sizeof(init_ntsc));
-		else if (*iarg & V4L2_STD_PAL)
-			saa7185_write_block(client, init_pal,
-					    sizeof(init_pal));
-		else
-			return -EINVAL;
-		encoder->norm = *iarg;
+	case 1:
+		/* turn off colorbar */
+		saa7185_write(sd, 0x3a, 0x0f);
+		/* Switch RTCE to 0 */
+		saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00);
+		/* SW: a slight sync problem... */
+		saa7185_write(sd, 0x6e, 0x00);
 		break;
-	}
 
-	case VIDIOC_INT_S_VIDEO_ROUTING:
-	{
-		struct v4l2_routing *route = arg;
-
-		/* RJ: route->input = 0: input is from SA7111
-		 route->input = 1: input is from ZR36060 */
-
-		switch (route->input) {
-		case 0:
-			/* turn off colorbar */
-			saa7185_write(client, 0x3a, 0x0f);
-			/* Switch RTCE to 1 */
-			saa7185_write(client, 0x61,
-				      (encoder->reg[0x61] & 0xf7) | 0x08);
-			saa7185_write(client, 0x6e, 0x01);
-			break;
-
-		case 1:
-			/* turn off colorbar */
-			saa7185_write(client, 0x3a, 0x0f);
-			/* Switch RTCE to 0 */
-			saa7185_write(client, 0x61,
-				      (encoder->reg[0x61] & 0xf7) | 0x00);
-			/* SW: a slight sync problem... */
-			saa7185_write(client, 0x6e, 0x00);
-			break;
-
-		case 2:
-			/* turn on colorbar */
-			saa7185_write(client, 0x3a, 0x8f);
-			/* Switch RTCE to 0 */
-			saa7185_write(client, 0x61,
-				      (encoder->reg[0x61] & 0xf7) | 0x08);
-			/* SW: a slight sync problem... */
-			saa7185_write(client, 0x6e, 0x01);
-			break;
-
-		default:
-			return -EINVAL;
-		}
+	case 2:
+		/* turn on colorbar */
+		saa7185_write(sd, 0x3a, 0x8f);
+		/* Switch RTCE to 0 */
+		saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08);
+		/* SW: a slight sync problem... */
+		saa7185_write(sd, 0x6e, 0x01);
 		break;
-	}
 
 	default:
 		return -EINVAL;
 	}
-
 	return 0;
 }
 
+static int saa7185_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7185, 0);
+}
+
+static int saa7185_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
 /* ----------------------------------------------------------------------- */
 
-static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
+static const struct v4l2_subdev_core_ops saa7185_core_ops = {
+	.g_chip_ident = saa7185_g_chip_ident,
+	.init = saa7185_init,
+};
 
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_video_ops saa7185_video_ops = {
+	.s_std_output = saa7185_s_std_output,
+	.s_routing = saa7185_s_routing,
+};
+
+static const struct v4l2_subdev_ops saa7185_ops = {
+	.core = &saa7185_core_ops,
+	.video = &saa7185_video_ops,
+};
+
+
+/* ----------------------------------------------------------------------- */
 
 static int saa7185_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	int i;
 	struct saa7185 *encoder;
+	struct v4l2_subdev *sd;
 
 	/* Check if the adapter supports the needed features */
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -319,26 +338,28 @@ static int saa7185_probe(struct i2c_client *client,
 	if (encoder == NULL)
 		return -ENOMEM;
 	encoder->norm = V4L2_STD_NTSC;
-	i2c_set_clientdata(client, encoder);
+	sd = &encoder->sd;
+	v4l2_i2c_subdev_init(sd, client, &saa7185_ops);
 
-	i = saa7185_write_block(client, init_common, sizeof(init_common));
+	i = saa7185_write_block(sd, init_common, sizeof(init_common));
 	if (i >= 0)
-		i = saa7185_write_block(client, init_ntsc, sizeof(init_ntsc));
+		i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
 	if (i < 0)
-		v4l_dbg(1, debug, client, "init error %d\n", i);
+		v4l2_dbg(1, debug, sd, "init error %d\n", i);
 	else
-		v4l_dbg(1, debug, client, "revision 0x%x\n",
-				saa7185_read(client) >> 5);
+		v4l2_dbg(1, debug, sd, "revision 0x%x\n",
+				saa7185_read(sd) >> 5);
 	return 0;
 }
 
 static int saa7185_remove(struct i2c_client *client)
 {
-	struct saa7185 *encoder = i2c_get_clientdata(client);
-
-	saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40);	/* SW: output off is active */
-	//saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct saa7185 *encoder = to_saa7185(sd);
 
+	v4l2_device_unregister_subdev(sd);
+	/* SW: output off is active */
+	saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40);
 	kfree(encoder);
 	return 0;
 }
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index f3fdada21963..59106cc68a63 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -113,6 +113,9 @@ enum {
 	V4L2_IDENT_SAA6752HS = 6752,
 	V4L2_IDENT_SAA6752HS_AC3 = 6753,
 
+	/* module saa7185: just ident 7185 */
+	V4L2_IDENT_SAA7185 = 7185,
+
 	/* module wm8739: just ident 8739 */
 	V4L2_IDENT_WM8739 = 8739,
 
-- 
cgit v1.2.3


From 7e5eaadcbd8894b25f715aa03cb632d0df63269c Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 19 Feb 2009 14:36:53 -0300
Subject: V4L/DVB (10726): vpx3220: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/vpx3220.c   | 497 +++++++++++++++++++++-------------------
 include/media/v4l2-chip-ident.h |   5 +
 2 files changed, 271 insertions(+), 231 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/vpx3220.c b/drivers/media/video/vpx3220.c
index cd2064e7733b..476a204dcf90 100644
--- a/drivers/media/video/vpx3220.c
+++ b/drivers/media/video/vpx3220.c
@@ -24,11 +24,10 @@
 #include <linux/types.h>
 #include <asm/uaccess.h>
 #include <linux/i2c.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-i2c-drv-legacy.h>
-#include <linux/videodev.h>
 #include <linux/videodev2.h>
-#include <linux/video_decoder.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv-legacy.h>
 
 MODULE_DESCRIPTION("vpx3220a/vpx3216b/vpx3214c video decoder driver");
 MODULE_AUTHOR("Laurent Pinchart");
@@ -38,14 +37,20 @@ static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
+static unsigned short normal_i2c[] = { 0x86 >> 1, 0x8e >> 1, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD;
+
 #define VPX_TIMEOUT_COUNT  10
 
 /* ----------------------------------------------------------------------- */
 
 struct vpx3220 {
+	struct v4l2_subdev sd;
 	unsigned char reg[255];
 
 	v4l2_std_id norm;
+	int ident;
 	int input;
 	int enable;
 	int bright;
@@ -54,30 +59,38 @@ struct vpx3220 {
 	int sat;
 };
 
+static inline struct vpx3220 *to_vpx3220(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct vpx3220, sd);
+}
+
 static char *inputs[] = { "internal", "composite", "svideo" };
 
 /* ----------------------------------------------------------------------- */
 
-static inline int vpx3220_write(struct i2c_client *client, u8 reg, u8 value)
+static inline int vpx3220_write(struct v4l2_subdev *sd, u8 reg, u8 value)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	struct vpx3220 *decoder = i2c_get_clientdata(client);
 
 	decoder->reg[reg] = value;
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
-static inline int vpx3220_read(struct i2c_client *client, u8 reg)
+static inline int vpx3220_read(struct v4l2_subdev *sd, u8 reg)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
 	return i2c_smbus_read_byte_data(client, reg);
 }
 
-static int vpx3220_fp_status(struct i2c_client *client)
+static int vpx3220_fp_status(struct v4l2_subdev *sd)
 {
 	unsigned char status;
 	unsigned int i;
 
 	for (i = 0; i < VPX_TIMEOUT_COUNT; i++) {
-		status = vpx3220_read(client, 0x29);
+		status = vpx3220_read(sd, 0x29);
 
 		if (!(status & 4))
 			return 0;
@@ -91,57 +104,60 @@ static int vpx3220_fp_status(struct i2c_client *client)
 	return -1;
 }
 
-static int vpx3220_fp_write(struct i2c_client *client, u8 fpaddr, u16 data)
+static int vpx3220_fp_write(struct v4l2_subdev *sd, u8 fpaddr, u16 data)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
 	/* Write the 16-bit address to the FPWR register */
 	if (i2c_smbus_write_word_data(client, 0x27, swab16(fpaddr)) == -1) {
-		v4l_dbg(1, debug, client, "%s: failed\n", __func__);
+		v4l2_dbg(1, debug, sd, "%s: failed\n", __func__);
 		return -1;
 	}
 
-	if (vpx3220_fp_status(client) < 0)
+	if (vpx3220_fp_status(sd) < 0)
 		return -1;
 
 	/* Write the 16-bit data to the FPDAT register */
 	if (i2c_smbus_write_word_data(client, 0x28, swab16(data)) == -1) {
-		v4l_dbg(1, debug, client, "%s: failed\n", __func__);
+		v4l2_dbg(1, debug, sd, "%s: failed\n", __func__);
 		return -1;
 	}
 
 	return 0;
 }
 
-static u16 vpx3220_fp_read(struct i2c_client *client, u16 fpaddr)
+static u16 vpx3220_fp_read(struct v4l2_subdev *sd, u16 fpaddr)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	s16 data;
 
 	/* Write the 16-bit address to the FPRD register */
 	if (i2c_smbus_write_word_data(client, 0x26, swab16(fpaddr)) == -1) {
-		v4l_dbg(1, debug, client, "%s: failed\n", __func__);
+		v4l2_dbg(1, debug, sd, "%s: failed\n", __func__);
 		return -1;
 	}
 
-	if (vpx3220_fp_status(client) < 0)
+	if (vpx3220_fp_status(sd) < 0)
 		return -1;
 
 	/* Read the 16-bit data from the FPDAT register */
 	data = i2c_smbus_read_word_data(client, 0x28);
 	if (data == -1) {
-		v4l_dbg(1, debug, client, "%s: failed\n", __func__);
+		v4l2_dbg(1, debug, sd, "%s: failed\n", __func__);
 		return -1;
 	}
 
 	return swab16(data);
 }
 
-static int vpx3220_write_block(struct i2c_client *client, const u8 *data, unsigned int len)
+static int vpx3220_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len)
 {
 	u8 reg;
 	int ret = -1;
 
 	while (len >= 2) {
 		reg = *data++;
-		ret = vpx3220_write(client, reg, *data++);
+		ret = vpx3220_write(sd, reg, *data++);
 		if (ret < 0)
 			break;
 		len -= 2;
@@ -150,7 +166,7 @@ static int vpx3220_write_block(struct i2c_client *client, const u8 *data, unsign
 	return ret;
 }
 
-static int vpx3220_write_fp_block(struct i2c_client *client,
+static int vpx3220_write_fp_block(struct v4l2_subdev *sd,
 		const u16 *data, unsigned int len)
 {
 	u8 reg;
@@ -158,7 +174,7 @@ static int vpx3220_write_fp_block(struct i2c_client *client,
 
 	while (len > 1) {
 		reg = *data++;
-		ret |= vpx3220_fp_write(client, reg, *data++);
+		ret |= vpx3220_fp_write(sd, reg, *data++);
 		len -= 2;
 	}
 
@@ -261,272 +277,281 @@ static const unsigned short init_fp[] = {
 };
 
 
-static int vpx3220_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int vpx3220_init(struct v4l2_subdev *sd, u32 val)
 {
-	struct vpx3220 *decoder = i2c_get_clientdata(client);
-
-	switch (cmd) {
-	case VIDIOC_INT_INIT:
-	{
-		vpx3220_write_block(client, init_common,
-				    sizeof(init_common));
-		vpx3220_write_fp_block(client, init_fp,
-				       sizeof(init_fp) >> 1);
-		if (decoder->norm & V4L2_STD_NTSC) {
-			vpx3220_write_fp_block(client, init_ntsc,
-					       sizeof(init_ntsc) >> 1);
-		} else if (decoder->norm & V4L2_STD_PAL) {
-			vpx3220_write_fp_block(client, init_pal,
-					       sizeof(init_pal) >> 1);
-		} else if (decoder->norm & V4L2_STD_SECAM) {
-			vpx3220_write_fp_block(client, init_secam,
-					       sizeof(init_secam) >> 1);
-		} else {
-			vpx3220_write_fp_block(client, init_pal,
-					       sizeof(init_pal) >> 1);
-		}
-		break;
-	}
+	struct vpx3220 *decoder = to_vpx3220(sd);
+
+	vpx3220_write_block(sd, init_common, sizeof(init_common));
+	vpx3220_write_fp_block(sd, init_fp, sizeof(init_fp) >> 1);
+	if (decoder->norm & V4L2_STD_NTSC)
+		vpx3220_write_fp_block(sd, init_ntsc, sizeof(init_ntsc) >> 1);
+	else if (decoder->norm & V4L2_STD_PAL)
+		vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1);
+	else if (decoder->norm & V4L2_STD_SECAM)
+		vpx3220_write_fp_block(sd, init_secam, sizeof(init_secam) >> 1);
+	else
+		vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1);
+	return 0;
+}
 
-	case VIDIOC_QUERYSTD:
-	case VIDIOC_INT_G_INPUT_STATUS:
-	{
-		int res = V4L2_IN_ST_NO_SIGNAL, status;
-		v4l2_std_id std = 0;
+static int vpx3220_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd)
+{
+	int res = V4L2_IN_ST_NO_SIGNAL, status;
+	v4l2_std_id std = 0;
 
-		v4l_dbg(1, debug, client, "VIDIOC_QUERYSTD/VIDIOC_INT_G_INPUT_STATUS\n");
+	v4l2_dbg(1, debug, sd, "VIDIOC_QUERYSTD/VIDIOC_INT_G_INPUT_STATUS\n");
 
-		status = vpx3220_fp_read(client, 0x0f3);
+	status = vpx3220_fp_read(sd, 0x0f3);
 
-		v4l_dbg(1, debug, client, "status: 0x%04x\n", status);
+	v4l2_dbg(1, debug, sd, "status: 0x%04x\n", status);
 
-		if (status < 0)
-			return status;
+	if (status < 0)
+		return status;
 
-		if ((status & 0x20) == 0) {
-			res = 0;
+	if ((status & 0x20) == 0) {
+		res = 0;
 
-			switch (status & 0x18) {
-			case 0x00:
-			case 0x10:
-			case 0x14:
-			case 0x18:
-				std = V4L2_STD_PAL;
-				break;
+		switch (status & 0x18) {
+		case 0x00:
+		case 0x10:
+		case 0x14:
+		case 0x18:
+			std = V4L2_STD_PAL;
+			break;
 
-			case 0x08:
-				std = V4L2_STD_SECAM;
-				break;
+		case 0x08:
+			std = V4L2_STD_SECAM;
+			break;
 
-			case 0x04:
-			case 0x0c:
-			case 0x1c:
-				std = V4L2_STD_NTSC;
-				break;
-			}
+		case 0x04:
+		case 0x0c:
+		case 0x1c:
+			std = V4L2_STD_NTSC;
+			break;
 		}
-
-		if (cmd == VIDIOC_QUERYSTD)
-			*(v4l2_std_id *)arg = std;
-		else
-			*(int *)arg = res;
-		break;
 	}
+	if (pstd)
+		*pstd = std;
+	if (pstatus)
+		*pstatus = status;
+	return 0;
+}
 
-	case VIDIOC_S_STD:
-	{
-		v4l2_std_id *iarg = arg;
-		int temp_input;
-
-		/* Here we back up the input selection because it gets
-		   overwritten when we fill the registers with the
-		   choosen video norm */
-		temp_input = vpx3220_fp_read(client, 0xf2);
-
-		v4l_dbg(1, debug, client, "VIDIOC_S_STD %llx\n", *iarg);
-		if (*iarg & V4L2_STD_NTSC) {
-			vpx3220_write_fp_block(client, init_ntsc,
-					       sizeof(init_ntsc) >> 1);
-			v4l_dbg(1, debug, client, "norm switched to NTSC\n");
-		} else if (*iarg & V4L2_STD_PAL) {
-			vpx3220_write_fp_block(client, init_pal,
-					       sizeof(init_pal) >> 1);
-			v4l_dbg(1, debug, client, "norm switched to PAL\n");
-		} else if (*iarg & V4L2_STD_SECAM) {
-			vpx3220_write_fp_block(client, init_secam,
-					       sizeof(init_secam) >> 1);
-			v4l_dbg(1, debug, client, "norm switched to SECAM\n");
-		} else {
-			return -EINVAL;
-		}
+static int vpx3220_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+	return vpx3220_status(sd, NULL, std);
+}
 
-		decoder->norm = *iarg;
+static int vpx3220_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+	return vpx3220_status(sd, status, NULL);
+}
 
-		/* And here we set the backed up video input again */
-		vpx3220_fp_write(client, 0xf2, temp_input | 0x0010);
-		udelay(10);
-		break;
+static int vpx3220_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+	struct vpx3220 *decoder = to_vpx3220(sd);
+	int temp_input;
+
+	/* Here we back up the input selection because it gets
+	   overwritten when we fill the registers with the
+	   choosen video norm */
+	temp_input = vpx3220_fp_read(sd, 0xf2);
+
+	v4l2_dbg(1, debug, sd, "VIDIOC_S_STD %llx\n", std);
+	if (std & V4L2_STD_NTSC) {
+		vpx3220_write_fp_block(sd, init_ntsc, sizeof(init_ntsc) >> 1);
+		v4l2_dbg(1, debug, sd, "norm switched to NTSC\n");
+	} else if (std & V4L2_STD_PAL) {
+		vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1);
+		v4l2_dbg(1, debug, sd, "norm switched to PAL\n");
+	} else if (std & V4L2_STD_SECAM) {
+		vpx3220_write_fp_block(sd, init_secam, sizeof(init_secam) >> 1);
+		v4l2_dbg(1, debug, sd, "norm switched to SECAM\n");
+	} else {
+		return -EINVAL;
 	}
 
-	case VIDIOC_INT_S_VIDEO_ROUTING:
-	{
-		struct v4l2_routing *route = arg;
-		int data;
+	decoder->norm = std;
 
-		/* RJ:  *iarg = 0: ST8 (PCTV) input
-		 *iarg = 1: COMPOSITE  input
-		 *iarg = 2: SVHS       input  */
+	/* And here we set the backed up video input again */
+	vpx3220_fp_write(sd, 0xf2, temp_input | 0x0010);
+	udelay(10);
+	return 0;
+}
 
-		const int input[3][2] = {
-			{0x0c, 0},
-			{0x0d, 0},
-			{0x0e, 1}
-		};
+static int vpx3220_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+	int data;
 
-		if (route->input < 0 || route->input > 2)
-			return -EINVAL;
+	/* RJ:   route->input = 0: ST8 (PCTV) input
+		 route->input = 1: COMPOSITE  input
+		 route->input = 2: SVHS       input  */
 
-		v4l_dbg(1, debug, client, "input switched to %s\n", inputs[route->input]);
+	const int input[3][2] = {
+		{0x0c, 0},
+		{0x0d, 0},
+		{0x0e, 1}
+	};
 
-		vpx3220_write(client, 0x33, input[route->input][0]);
+	if (route->input < 0 || route->input > 2)
+		return -EINVAL;
 
-		data = vpx3220_fp_read(client, 0xf2) & ~(0x0020);
-		if (data < 0)
-			return data;
-		/* 0x0010 is required to latch the setting */
-		vpx3220_fp_write(client, 0xf2,
-				 data | (input[route->input][1] << 5) | 0x0010);
+	v4l2_dbg(1, debug, sd, "input switched to %s\n", inputs[route->input]);
 
-		udelay(10);
-		break;
-	}
+	vpx3220_write(sd, 0x33, input[route->input][0]);
 
-	case VIDIOC_STREAMON:
-	case VIDIOC_STREAMOFF:
-	{
-		int on = cmd == VIDIOC_STREAMON;
-		v4l_dbg(1, debug, client, "VIDIOC_STREAM%s\n", on ? "ON" : "OFF");
+	data = vpx3220_fp_read(sd, 0xf2) & ~(0x0020);
+	if (data < 0)
+		return data;
+	/* 0x0010 is required to latch the setting */
+	vpx3220_fp_write(sd, 0xf2,
+			data | (input[route->input][1] << 5) | 0x0010);
 
-		vpx3220_write(client, 0xf2, (on ? 0x1b : 0x00));
-		break;
-	}
+	udelay(10);
+	return 0;
+}
 
-	case VIDIOC_QUERYCTRL:
-	{
-		struct v4l2_queryctrl *qc = arg;
+static int vpx3220_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	v4l2_dbg(1, debug, sd, "VIDIOC_STREAM%s\n", enable ? "ON" : "OFF");
 
-		switch (qc->id) {
-		case V4L2_CID_BRIGHTNESS:
-			v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
-			break;
+	vpx3220_write(sd, 0xf2, (enable ? 0x1b : 0x00));
+	return 0;
+}
 
-		case V4L2_CID_CONTRAST:
-			v4l2_ctrl_query_fill(qc, 0, 63, 1, 32);
-			break;
+static int vpx3220_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+	switch (qc->id) {
+	case V4L2_CID_BRIGHTNESS:
+		v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
+		break;
 
-		case V4L2_CID_SATURATION:
-			v4l2_ctrl_query_fill(qc, 0, 4095, 1, 2048);
-			break;
+	case V4L2_CID_CONTRAST:
+		v4l2_ctrl_query_fill(qc, 0, 63, 1, 32);
+		break;
 
-		case V4L2_CID_HUE:
-			v4l2_ctrl_query_fill(qc, -512, 511, 1, 0);
-			break;
+	case V4L2_CID_SATURATION:
+		v4l2_ctrl_query_fill(qc, 0, 4095, 1, 2048);
+		break;
 
-		default:
-			return -EINVAL;
-		}
+	case V4L2_CID_HUE:
+		v4l2_ctrl_query_fill(qc, -512, 511, 1, 0);
 		break;
+
+	default:
+		return -EINVAL;
 	}
+	return 0;
+}
 
-	case VIDIOC_G_CTRL:
-	{
-		struct v4l2_control *ctrl = arg;
+static int vpx3220_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct vpx3220 *decoder = to_vpx3220(sd);
 
-		switch (ctrl->id) {
-		case V4L2_CID_BRIGHTNESS:
-			ctrl->value = decoder->bright;
-			break;
-		case V4L2_CID_CONTRAST:
-			ctrl->value = decoder->contrast;
-			break;
-		case V4L2_CID_SATURATION:
-			ctrl->value = decoder->sat;
-			break;
-		case V4L2_CID_HUE:
-			ctrl->value = decoder->hue;
-			break;
-		default:
-			return -EINVAL;
-		}
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		ctrl->value = decoder->bright;
+		break;
+	case V4L2_CID_CONTRAST:
+		ctrl->value = decoder->contrast;
 		break;
+	case V4L2_CID_SATURATION:
+		ctrl->value = decoder->sat;
+		break;
+	case V4L2_CID_HUE:
+		ctrl->value = decoder->hue;
+		break;
+	default:
+		return -EINVAL;
 	}
+	return 0;
+}
 
-	case VIDIOC_S_CTRL:
-	{
-		struct v4l2_control *ctrl = arg;
+static int vpx3220_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct vpx3220 *decoder = to_vpx3220(sd);
 
-		switch (ctrl->id) {
-		case V4L2_CID_BRIGHTNESS:
-			if (decoder->bright != ctrl->value) {
-				decoder->bright = ctrl->value;
-				vpx3220_write(client, 0xe6, decoder->bright);
-			}
-			break;
-		case V4L2_CID_CONTRAST:
-			if (decoder->contrast != ctrl->value) {
-				/* Bit 7 and 8 is for noise shaping */
-				decoder->contrast = ctrl->value;
-				vpx3220_write(client, 0xe7,
-						decoder->contrast + 192);
-			}
-			break;
-		case V4L2_CID_SATURATION:
-			if (decoder->sat != ctrl->value) {
-				decoder->sat = ctrl->value;
-				vpx3220_fp_write(client, 0xa0, decoder->sat);
-			}
-			break;
-		case V4L2_CID_HUE:
-			if (decoder->hue != ctrl->value) {
-				decoder->hue = ctrl->value;
-				vpx3220_fp_write(client, 0x1c, decoder->hue);
-			}
-			break;
-		default:
-			return -EINVAL;
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		if (decoder->bright != ctrl->value) {
+			decoder->bright = ctrl->value;
+			vpx3220_write(sd, 0xe6, decoder->bright);
+		}
+		break;
+	case V4L2_CID_CONTRAST:
+		if (decoder->contrast != ctrl->value) {
+			/* Bit 7 and 8 is for noise shaping */
+			decoder->contrast = ctrl->value;
+			vpx3220_write(sd, 0xe7, decoder->contrast + 192);
+		}
+		break;
+	case V4L2_CID_SATURATION:
+		if (decoder->sat != ctrl->value) {
+			decoder->sat = ctrl->value;
+			vpx3220_fp_write(sd, 0xa0, decoder->sat);
+		}
+		break;
+	case V4L2_CID_HUE:
+		if (decoder->hue != ctrl->value) {
+			decoder->hue = ctrl->value;
+			vpx3220_fp_write(sd, 0x1c, decoder->hue);
 		}
 		break;
-	}
-
 	default:
 		return -EINVAL;
 	}
-
 	return 0;
 }
 
-static int vpx3220_init_client(struct i2c_client *client)
+static int vpx3220_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
 {
-	vpx3220_write_block(client, init_common, sizeof(init_common));
-	vpx3220_write_fp_block(client, init_fp, sizeof(init_fp) >> 1);
-	/* Default to PAL */
-	vpx3220_write_fp_block(client, init_pal, sizeof(init_pal) >> 1);
+	struct vpx3220 *decoder = to_vpx3220(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-	return 0;
+	return v4l2_chip_ident_i2c_client(client, chip, decoder->ident, 0);
 }
 
+static int vpx3220_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops vpx3220_core_ops = {
+	.g_chip_ident = vpx3220_g_chip_ident,
+	.init = vpx3220_init,
+	.g_ctrl = vpx3220_g_ctrl,
+	.s_ctrl = vpx3220_s_ctrl,
+	.queryctrl = vpx3220_queryctrl,
+};
+
+static const struct v4l2_subdev_tuner_ops vpx3220_tuner_ops = {
+	.s_std = vpx3220_s_std,
+};
+
+static const struct v4l2_subdev_video_ops vpx3220_video_ops = {
+	.s_routing = vpx3220_s_routing,
+	.s_stream = vpx3220_s_stream,
+	.querystd = vpx3220_querystd,
+	.g_input_status = vpx3220_g_input_status,
+};
+
+static const struct v4l2_subdev_ops vpx3220_ops = {
+	.core = &vpx3220_core_ops,
+	.tuner = &vpx3220_tuner_ops,
+	.video = &vpx3220_video_ops,
+};
+
 /* -----------------------------------------------------------------------
  * Client management code
  */
 
-static unsigned short normal_i2c[] = { 0x86 >> 1, 0x8e >> 1, I2C_CLIENT_END };
-
-I2C_CLIENT_INSMOD;
-
 static int vpx3220_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct vpx3220 *decoder;
+	struct v4l2_subdev *sd;
 	const char *name = NULL;
 	u8 ver;
 	u16 pn;
@@ -539,6 +564,8 @@ static int vpx3220_probe(struct i2c_client *client,
 	decoder = kzalloc(sizeof(struct vpx3220), GFP_KERNEL);
 	if (decoder == NULL)
 		return -ENOMEM;
+	sd = &decoder->sd;
+	v4l2_i2c_subdev_init(sd, client, &vpx3220_ops);
 	decoder->norm = V4L2_STD_PAL;
 	decoder->input = 0;
 	decoder->enable = 1;
@@ -546,11 +573,11 @@ static int vpx3220_probe(struct i2c_client *client,
 	decoder->contrast = 32768;
 	decoder->hue = 32768;
 	decoder->sat = 32768;
-	i2c_set_clientdata(client, decoder);
 
 	ver = i2c_smbus_read_byte_data(client, 0x00);
 	pn = (i2c_smbus_read_byte_data(client, 0x02) << 8) +
 		i2c_smbus_read_byte_data(client, 0x01);
+	decoder->ident = V4L2_IDENT_VPX3220A;
 	if (ver == 0xec) {
 		switch (pn) {
 		case 0x4680:
@@ -558,26 +585,34 @@ static int vpx3220_probe(struct i2c_client *client,
 			break;
 		case 0x4260:
 			name = "vpx3216b";
+			decoder->ident = V4L2_IDENT_VPX3216B;
 			break;
 		case 0x4280:
 			name = "vpx3214c";
+			decoder->ident = V4L2_IDENT_VPX3214C;
 			break;
 		}
 	}
 	if (name)
-		v4l_info(client, "%s found @ 0x%x (%s)\n", name,
+		v4l2_info(sd, "%s found @ 0x%x (%s)\n", name,
 			client->addr << 1, client->adapter->name);
 	else
-		v4l_info(client, "chip (%02x:%04x) found @ 0x%x (%s)\n",
+		v4l2_info(sd, "chip (%02x:%04x) found @ 0x%x (%s)\n",
 			ver, pn, client->addr << 1, client->adapter->name);
 
-	vpx3220_init_client(client);
+	vpx3220_write_block(sd, init_common, sizeof(init_common));
+	vpx3220_write_fp_block(sd, init_fp, sizeof(init_fp) >> 1);
+	/* Default to PAL */
+	vpx3220_write_fp_block(sd, init_pal, sizeof(init_pal) >> 1);
 	return 0;
 }
 
 static int vpx3220_remove(struct i2c_client *client)
 {
-	kfree(i2c_get_clientdata(client));
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_vpx3220(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index 59106cc68a63..f53f1a1b0525 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -88,6 +88,11 @@ enum {
 	/* module vp27smpx: just ident 2700 */
 	V4L2_IDENT_VP27SMPX = 2700,
 
+	/* module vpx3220: reserved range: 3210-3229 */
+	V4L2_IDENT_VPX3214C = 3214,
+	V4L2_IDENT_VPX3216B = 3216,
+	V4L2_IDENT_VPX3220A = 3220,
+
 	/* module tvp5150 */
 	V4L2_IDENT_TVP5150 = 5150,
 
-- 
cgit v1.2.3


From 7d9ef21c2fd4d4d302cd2026c477c058f17d2ba8 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 19 Feb 2009 14:47:22 -0300
Subject: V4L/DVB (10727): adv7170: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/adv7170.c   | 321 +++++++++++++++++++++-------------------
 include/media/v4l2-chip-ident.h |   6 +
 2 files changed, 174 insertions(+), 153 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/adv7170.c b/drivers/media/video/adv7170.c
index ebafe78cb4c0..f7120b369ba2 100644
--- a/drivers/media/video/adv7170.c
+++ b/drivers/media/video/adv7170.c
@@ -34,15 +34,23 @@
 #include <asm/uaccess.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
-#include <linux/videodev.h>
-#include <linux/video_encoder.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
 MODULE_AUTHOR("Maxim Yevtyushkin");
 MODULE_LICENSE("GPL");
 
+static unsigned short normal_i2c[] = {
+	0xd4 >> 1, 0xd6 >> 1,	/* adv7170 IDs */
+	0x54 >> 1, 0x56 >> 1,	/* adv7171 IDs */
+	I2C_CLIENT_END
+};
+
+I2C_CLIENT_INSMOD;
+
 static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
@@ -50,36 +58,43 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
 /* ----------------------------------------------------------------------- */
 
 struct adv7170 {
+	struct v4l2_subdev sd;
 	unsigned char reg[128];
 
 	v4l2_std_id norm;
 	int input;
-	int bright;
-	int contrast;
-	int hue;
-	int sat;
 };
 
+static inline struct adv7170 *to_adv7170(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct adv7170, sd);
+}
+
 static char *inputs[] = { "pass_through", "play_back" };
 
 /* ----------------------------------------------------------------------- */
 
-static inline int adv7170_write(struct i2c_client *client, u8 reg, u8 value)
+static inline int adv7170_write(struct v4l2_subdev *sd, u8 reg, u8 value)
 {
-	struct adv7170 *encoder = i2c_get_clientdata(client);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct adv7170 *encoder = to_adv7170(sd);
 
 	encoder->reg[reg] = value;
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
-static inline int adv7170_read(struct i2c_client *client, u8 reg)
+static inline int adv7170_read(struct v4l2_subdev *sd, u8 reg)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
 	return i2c_smbus_read_byte_data(client, reg);
 }
 
-static int adv7170_write_block(struct i2c_client *client,
+static int adv7170_write_block(struct v4l2_subdev *sd,
 		     const u8 *data, unsigned int len)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct adv7170 *encoder = to_adv7170(sd);
 	int ret = -1;
 	u8 reg;
 
@@ -87,7 +102,6 @@ static int adv7170_write_block(struct i2c_client *client,
 	 * the adapter understands raw I2C */
 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
 		/* do raw I2C, not smbus compatible */
-		struct adv7170 *encoder = i2c_get_clientdata(client);
 		u8 block_data[32];
 		int block_len;
 
@@ -108,7 +122,7 @@ static int adv7170_write_block(struct i2c_client *client,
 		/* do some slow I2C emulation kind of thing */
 		while (len >= 2) {
 			reg = *data++;
-			ret = adv7170_write(client, reg, *data++);
+			ret = adv7170_write(sd, reg, *data++);
 			if (ret < 0)
 				break;
 			len -= 2;
@@ -126,168 +140,165 @@ static int adv7170_write_block(struct i2c_client *client,
 #define TR1PLAY	    0x00
 
 static const unsigned char init_NTSC[] = {
-	0x00, 0x10,		// MR0
-	0x01, 0x20,		// MR1
-	0x02, 0x0e,		// MR2 RTC control: bits 2 and 1
-	0x03, 0x80,		// MR3
-	0x04, 0x30,		// MR4
-	0x05, 0x00,		// Reserved
-	0x06, 0x00,		// Reserved
-	0x07, TR0MODE,		// TM0
-	0x08, TR1CAPT,		// TM1
-	0x09, 0x16,		// Fsc0
-	0x0a, 0x7c,		// Fsc1
-	0x0b, 0xf0,		// Fsc2
-	0x0c, 0x21,		// Fsc3
-	0x0d, 0x00,		// Subcarrier Phase
-	0x0e, 0x00,		// Closed Capt. Ext 0
-	0x0f, 0x00,		// Closed Capt. Ext 1
-	0x10, 0x00,		// Closed Capt. 0
-	0x11, 0x00,		// Closed Capt. 1
-	0x12, 0x00,		// Pedestal Ctl 0
-	0x13, 0x00,		// Pedestal Ctl 1
-	0x14, 0x00,		// Pedestal Ctl 2
-	0x15, 0x00,		// Pedestal Ctl 3
-	0x16, 0x00,		// CGMS_WSS_0
-	0x17, 0x00,		// CGMS_WSS_1
-	0x18, 0x00,		// CGMS_WSS_2
-	0x19, 0x00,		// Teletext Ctl
+	0x00, 0x10,		/* MR0 */
+	0x01, 0x20,		/* MR1 */
+	0x02, 0x0e,		/* MR2 RTC control: bits 2 and 1 */
+	0x03, 0x80,		/* MR3 */
+	0x04, 0x30,		/* MR4 */
+	0x05, 0x00,		/* Reserved */
+	0x06, 0x00,		/* Reserved */
+	0x07, TR0MODE,		/* TM0 */
+	0x08, TR1CAPT,		/* TM1 */
+	0x09, 0x16,		/* Fsc0 */
+	0x0a, 0x7c,		/* Fsc1 */
+	0x0b, 0xf0,		/* Fsc2 */
+	0x0c, 0x21,		/* Fsc3 */
+	0x0d, 0x00,		/* Subcarrier Phase */
+	0x0e, 0x00,		/* Closed Capt. Ext 0 */
+	0x0f, 0x00,		/* Closed Capt. Ext 1 */
+	0x10, 0x00,		/* Closed Capt. 0 */
+	0x11, 0x00,		/* Closed Capt. 1 */
+	0x12, 0x00,		/* Pedestal Ctl 0 */
+	0x13, 0x00,		/* Pedestal Ctl 1 */
+	0x14, 0x00,		/* Pedestal Ctl 2 */
+	0x15, 0x00,		/* Pedestal Ctl 3 */
+	0x16, 0x00,		/* CGMS_WSS_0 */
+	0x17, 0x00,		/* CGMS_WSS_1 */
+	0x18, 0x00,		/* CGMS_WSS_2 */
+	0x19, 0x00,		/* Teletext Ctl */
 };
 
 static const unsigned char init_PAL[] = {
-	0x00, 0x71,		// MR0
-	0x01, 0x20,		// MR1
-	0x02, 0x0e,		// MR2 RTC control: bits 2 and 1
-	0x03, 0x80,		// MR3
-	0x04, 0x30,		// MR4
-	0x05, 0x00,		// Reserved
-	0x06, 0x00,		// Reserved
-	0x07, TR0MODE,		// TM0
-	0x08, TR1CAPT,		// TM1
-	0x09, 0xcb,		// Fsc0
-	0x0a, 0x8a,		// Fsc1
-	0x0b, 0x09,		// Fsc2
-	0x0c, 0x2a,		// Fsc3
-	0x0d, 0x00,		// Subcarrier Phase
-	0x0e, 0x00,		// Closed Capt. Ext 0
-	0x0f, 0x00,		// Closed Capt. Ext 1
-	0x10, 0x00,		// Closed Capt. 0
-	0x11, 0x00,		// Closed Capt. 1
-	0x12, 0x00,		// Pedestal Ctl 0
-	0x13, 0x00,		// Pedestal Ctl 1
-	0x14, 0x00,		// Pedestal Ctl 2
-	0x15, 0x00,		// Pedestal Ctl 3
-	0x16, 0x00,		// CGMS_WSS_0
-	0x17, 0x00,		// CGMS_WSS_1
-	0x18, 0x00,		// CGMS_WSS_2
-	0x19, 0x00,		// Teletext Ctl
+	0x00, 0x71,		/* MR0 */
+	0x01, 0x20,		/* MR1 */
+	0x02, 0x0e,		/* MR2 RTC control: bits 2 and 1 */
+	0x03, 0x80,		/* MR3 */
+	0x04, 0x30,		/* MR4 */
+	0x05, 0x00,		/* Reserved */
+	0x06, 0x00,		/* Reserved */
+	0x07, TR0MODE,		/* TM0 */
+	0x08, TR1CAPT,		/* TM1 */
+	0x09, 0xcb,		/* Fsc0 */
+	0x0a, 0x8a,		/* Fsc1 */
+	0x0b, 0x09,		/* Fsc2 */
+	0x0c, 0x2a,		/* Fsc3 */
+	0x0d, 0x00,		/* Subcarrier Phase */
+	0x0e, 0x00,		/* Closed Capt. Ext 0 */
+	0x0f, 0x00,		/* Closed Capt. Ext 1 */
+	0x10, 0x00,		/* Closed Capt. 0 */
+	0x11, 0x00,		/* Closed Capt. 1 */
+	0x12, 0x00,		/* Pedestal Ctl 0 */
+	0x13, 0x00,		/* Pedestal Ctl 1 */
+	0x14, 0x00,		/* Pedestal Ctl 2 */
+	0x15, 0x00,		/* Pedestal Ctl 3 */
+	0x16, 0x00,		/* CGMS_WSS_0 */
+	0x17, 0x00,		/* CGMS_WSS_1 */
+	0x18, 0x00,		/* CGMS_WSS_2 */
+	0x19, 0x00,		/* Teletext Ctl */
 };
 
 
-static int adv7170_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int adv7170_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
 {
-	struct adv7170 *encoder = i2c_get_clientdata(client);
-
-	switch (cmd) {
-	case VIDIOC_INT_INIT:
-#if 0
-		/* This is just for testing!!! */
-		adv7170_write_block(client, init_common,
-				    sizeof(init_common));
-		adv7170_write(client, 0x07, TR0MODE | TR0RST);
-		adv7170_write(client, 0x07, TR0MODE);
-#endif
-		break;
-
-	case VIDIOC_INT_S_STD_OUTPUT:
-	{
-		v4l2_std_id iarg = *(v4l2_std_id *) arg;
-
-		v4l_dbg(1, debug, client, "set norm %llx\n", iarg);
-
-		if (iarg & V4L2_STD_NTSC) {
-			adv7170_write_block(client, init_NTSC,
-					    sizeof(init_NTSC));
-			if (encoder->input == 0)
-				adv7170_write(client, 0x02, 0x0e);	// Enable genlock
-			adv7170_write(client, 0x07, TR0MODE | TR0RST);
-			adv7170_write(client, 0x07, TR0MODE);
-		} else if (iarg & V4L2_STD_PAL) {
-			adv7170_write_block(client, init_PAL,
-					    sizeof(init_PAL));
-			if (encoder->input == 0)
-				adv7170_write(client, 0x02, 0x0e);	// Enable genlock
-			adv7170_write(client, 0x07, TR0MODE | TR0RST);
-			adv7170_write(client, 0x07, TR0MODE);
-		} else {
-			v4l_dbg(1, debug, client, "illegal norm: %llx\n", iarg);
-			return -EINVAL;
-		}
-		v4l_dbg(1, debug, client, "switched to %llx\n", iarg);
-		encoder->norm = iarg;
-		break;
+	struct adv7170 *encoder = to_adv7170(sd);
+
+	v4l2_dbg(1, debug, sd, "set norm %llx\n", std);
+
+	if (std & V4L2_STD_NTSC) {
+		adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
+		if (encoder->input == 0)
+			adv7170_write(sd, 0x02, 0x0e);	/* Enable genlock */
+		adv7170_write(sd, 0x07, TR0MODE | TR0RST);
+		adv7170_write(sd, 0x07, TR0MODE);
+	} else if (std & V4L2_STD_PAL) {
+		adv7170_write_block(sd, init_PAL, sizeof(init_PAL));
+		if (encoder->input == 0)
+			adv7170_write(sd, 0x02, 0x0e);	/* Enable genlock */
+		adv7170_write(sd, 0x07, TR0MODE | TR0RST);
+		adv7170_write(sd, 0x07, TR0MODE);
+	} else {
+		v4l2_dbg(1, debug, sd, "illegal norm: %llx\n", std);
+		return -EINVAL;
 	}
+	v4l2_dbg(1, debug, sd, "switched to %llx\n", std);
+	encoder->norm = std;
+	return 0;
+}
 
-	case VIDIOC_INT_S_VIDEO_ROUTING:
-	{
-		struct v4l2_routing *route = arg;
+static int adv7170_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+	struct adv7170 *encoder = to_adv7170(sd);
 
-		/* RJ: *iarg = 0: input is from decoder
-		 *iarg = 1: input is from ZR36060
-		 *iarg = 2: color bar */
+	/* RJ: route->input = 0: input is from decoder
+	   route->input = 1: input is from ZR36060
+	   route->input = 2: color bar */
 
-		v4l_dbg(1, debug, client, "set input from %s\n",
+	v4l2_dbg(1, debug, sd, "set input from %s\n",
 			route->input == 0 ? "decoder" : "ZR36060");
 
-		switch (route->input) {
-		case 0:
-			adv7170_write(client, 0x01, 0x20);
-			adv7170_write(client, 0x08, TR1CAPT);	/* TR1 */
-			adv7170_write(client, 0x02, 0x0e);	// Enable genlock
-			adv7170_write(client, 0x07, TR0MODE | TR0RST);
-			adv7170_write(client, 0x07, TR0MODE);
-			/* udelay(10); */
-			break;
-
-		case 1:
-			adv7170_write(client, 0x01, 0x00);
-			adv7170_write(client, 0x08, TR1PLAY);	/* TR1 */
-			adv7170_write(client, 0x02, 0x08);
-			adv7170_write(client, 0x07, TR0MODE | TR0RST);
-			adv7170_write(client, 0x07, TR0MODE);
-			/* udelay(10); */
-			break;
-
-		default:
-			v4l_dbg(1, debug, client, "illegal input: %d\n", route->input);
-			return -EINVAL;
-		}
-		v4l_dbg(1, debug, client, "switched to %s\n", inputs[route->input]);
-		encoder->input = route->input;
+	switch (route->input) {
+	case 0:
+		adv7170_write(sd, 0x01, 0x20);
+		adv7170_write(sd, 0x08, TR1CAPT);	/* TR1 */
+		adv7170_write(sd, 0x02, 0x0e);	/* Enable genlock */
+		adv7170_write(sd, 0x07, TR0MODE | TR0RST);
+		adv7170_write(sd, 0x07, TR0MODE);
+		/* udelay(10); */
+		break;
+
+	case 1:
+		adv7170_write(sd, 0x01, 0x00);
+		adv7170_write(sd, 0x08, TR1PLAY);	/* TR1 */
+		adv7170_write(sd, 0x02, 0x08);
+		adv7170_write(sd, 0x07, TR0MODE | TR0RST);
+		adv7170_write(sd, 0x07, TR0MODE);
+		/* udelay(10); */
 		break;
-	}
 
 	default:
+		v4l2_dbg(1, debug, sd, "illegal input: %d\n", route->input);
 		return -EINVAL;
 	}
-
+	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[route->input]);
+	encoder->input = route->input;
 	return 0;
 }
 
+static int adv7170_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_BT866, 0);
+}
+
+static int adv7170_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
 /* ----------------------------------------------------------------------- */
 
-static unsigned short normal_i2c[] = {
-	0xd4 >> 1, 0xd6 >> 1,	/* adv7170 IDs */
-	0x54 >> 1, 0x56 >> 1,	/* adv7171 IDs */
-	I2C_CLIENT_END
+static const struct v4l2_subdev_core_ops adv7170_core_ops = {
+	.g_chip_ident = adv7170_g_chip_ident,
 };
 
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_video_ops adv7170_video_ops = {
+	.s_std_output = adv7170_s_std_output,
+	.s_routing = adv7170_s_routing,
+};
+
+static const struct v4l2_subdev_ops adv7170_ops = {
+	.core = &adv7170_core_ops,
+	.video = &adv7170_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
 
 static int adv7170_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct adv7170 *encoder;
+	struct v4l2_subdev *sd;
 	int i;
 
 	/* Check if the adapter supports the needed features */
@@ -300,25 +311,29 @@ static int adv7170_probe(struct i2c_client *client,
 	encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL);
 	if (encoder == NULL)
 		return -ENOMEM;
+	sd = &encoder->sd;
+	v4l2_i2c_subdev_init(sd, client, &adv7170_ops);
 	encoder->norm = V4L2_STD_NTSC;
 	encoder->input = 0;
-	i2c_set_clientdata(client, encoder);
 
-	i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
+	i = adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
 	if (i >= 0) {
-		i = adv7170_write(client, 0x07, TR0MODE | TR0RST);
-		i = adv7170_write(client, 0x07, TR0MODE);
-		i = adv7170_read(client, 0x12);
-		v4l_dbg(1, debug, client, "revision %d\n", i & 1);
+		i = adv7170_write(sd, 0x07, TR0MODE | TR0RST);
+		i = adv7170_write(sd, 0x07, TR0MODE);
+		i = adv7170_read(sd, 0x12);
+		v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
 	}
 	if (i < 0)
-		v4l_dbg(1, debug, client, "init error 0x%x\n", i);
+		v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
 	return 0;
 }
 
 static int adv7170_remove(struct i2c_client *client)
 {
-	kfree(i2c_get_clientdata(client));
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_adv7170(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index f53f1a1b0525..a5339d8ba9a4 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -118,6 +118,12 @@ enum {
 	V4L2_IDENT_SAA6752HS = 6752,
 	V4L2_IDENT_SAA6752HS_AC3 = 6753,
 
+	/* module adv7170: just ident 7170 */
+	V4L2_IDENT_ADV7170 = 7170,
+
+	/* module adv7175: just ident 7175 */
+	V4L2_IDENT_ADV7175 = 7175,
+
 	/* module saa7185: just ident 7185 */
 	V4L2_IDENT_SAA7185 = 7185,
 
-- 
cgit v1.2.3


From cc1139c7cdc1455fdf460c33fe63a36524753834 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Thu, 26 Feb 2009 23:08:22 -0300
Subject: V4L/DVB(10738a): remove include/linux/video_encoder.h

include/linux/video_encoder.h is not used anymore by a v4l driver.
Let's remove it and its occurences.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 Documentation/ioctl/ioctl-number.txt |  1 -
 include/linux/Kbuild                 |  1 -
 include/linux/video_encoder.h        | 23 -----------------------
 3 files changed, 25 deletions(-)
 delete mode 100644 include/linux/video_encoder.h

(limited to 'include')

diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt
index f1d639903325..3a311fe952ed 100644
--- a/Documentation/ioctl/ioctl-number.txt
+++ b/Documentation/ioctl/ioctl-number.txt
@@ -125,7 +125,6 @@ Code	Seq#	Include File		Comments
 'd'	00-DF	linux/video_decoder.h	conflict!
 'd'	F0-FF	linux/digi1.h
 'e'	all	linux/digi1.h		conflict!
-'e'	00-1F	linux/video_encoder.h	conflict!
 'e'	00-1F	net/irda/irtty.h	conflict!
 'f'	00-1F	linux/ext2_fs.h
 'h'	00-7F				Charon filesystem
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index e9581fd9fb66..da7ff0ba3860 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -159,7 +159,6 @@ header-y += un.h
 header-y += utime.h
 header-y += veth.h
 header-y += video_decoder.h
-header-y += video_encoder.h
 header-y += videotext.h
 header-y += x25.h
 
diff --git a/include/linux/video_encoder.h b/include/linux/video_encoder.h
deleted file mode 100644
index b7b6423bbb8a..000000000000
--- a/include/linux/video_encoder.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#ifndef _LINUX_VIDEO_ENCODER_H
-#define _LINUX_VIDEO_ENCODER_H
-
-#include <linux/types.h>
-
-struct video_encoder_capability { /* this name is too long */
-	__u32	flags;
-#define	VIDEO_ENCODER_PAL	1	/* can encode PAL signal */
-#define	VIDEO_ENCODER_NTSC	2	/* can encode NTSC */
-#define	VIDEO_ENCODER_SECAM	4	/* can encode SECAM */
-#define	VIDEO_ENCODER_CCIR	16	/* CCIR-601 pixel rate (720 pixels per line) instead of square pixel rate */
-	int	inputs;			/* number of inputs */
-	int	outputs;		/* number of outputs */
-};
-
-#define	ENCODER_GET_CAPABILITIES _IOR('e', 1, struct video_encoder_capability)
-#define	ENCODER_SET_NORM	_IOW('e', 2, int)
-#define	ENCODER_SET_INPUT	_IOW('e', 3, int)	/* 0 <= input < #inputs */
-#define	ENCODER_SET_OUTPUT	_IOW('e', 4, int)	/* 0 <= output < #outputs */
-#define	ENCODER_ENABLE_OUTPUT	_IOW('e', 5, int)	/* boolean output enable control */
-
-
-#endif
-- 
cgit v1.2.3


From b72857dd457b96de653b19b3c40394dac6285819 Mon Sep 17 00:00:00 2001
From: "Igor M. Liplianin" <liplianin@netup.ru>
Date: Thu, 26 Feb 2009 03:49:44 -0300
Subject: V4L/DVB (10744): dm1105: infrared remote code is remaked.

The driver infrared remote code part is altered to switch to a work queue.
Also ir_codes table moved to ir-common module for shared access.

Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/common/ir-keymaps.c |  38 +++++++++++++++
 drivers/media/dvb/dm1105/dm1105.c | 100 +++++++-------------------------------
 include/media/ir-common.h         |   1 +
 3 files changed, 56 insertions(+), 83 deletions(-)

(limited to 'include')

diff --git a/drivers/media/common/ir-keymaps.c b/drivers/media/common/ir-keymaps.c
index 97e78f71c60d..3fe158ac7bbf 100644
--- a/drivers/media/common/ir-keymaps.c
+++ b/drivers/media/common/ir-keymaps.c
@@ -2712,3 +2712,41 @@ IR_KEYTAB_TYPE ir_codes_ati_tv_wonder_hd_600[IR_KEYTAB_SIZE] = {
 };
 
 EXPORT_SYMBOL_GPL(ir_codes_ati_tv_wonder_hd_600);
+
+/* DVBWorld remotes
+   Igor M. Liplianin <liplianin@me.by>
+ */
+IR_KEYTAB_TYPE ir_codes_dm1105_nec[IR_KEYTAB_SIZE] = {
+	[0x0a] = KEY_Q,		/*power*/
+	[0x0c] = KEY_M,		/*mute*/
+	[0x11] = KEY_1,
+	[0x12] = KEY_2,
+	[0x13] = KEY_3,
+	[0x14] = KEY_4,
+	[0x15] = KEY_5,
+	[0x16] = KEY_6,
+	[0x17] = KEY_7,
+	[0x18] = KEY_8,
+	[0x19] = KEY_9,
+	[0x10] = KEY_0,
+	[0x1c] = KEY_PAGEUP,	/*ch+*/
+	[0x0f] = KEY_PAGEDOWN,	/*ch-*/
+	[0x1a] = KEY_O,		/*vol+*/
+	[0x0e] = KEY_Z,		/*vol-*/
+	[0x04] = KEY_R,		/*rec*/
+	[0x09] = KEY_D,		/*fav*/
+	[0x08] = KEY_BACKSPACE,	/*rewind*/
+	[0x07] = KEY_A,		/*fast*/
+	[0x0b] = KEY_P,		/*pause*/
+	[0x02] = KEY_ESC,	/*cancel*/
+	[0x03] = KEY_G,		/*tab*/
+	[0x00] = KEY_UP,	/*up*/
+	[0x1f] = KEY_ENTER,	/*ok*/
+	[0x01] = KEY_DOWN,	/*down*/
+	[0x05] = KEY_C,		/*cap*/
+	[0x06] = KEY_S,		/*stop*/
+	[0x40] = KEY_F,		/*full*/
+	[0x1e] = KEY_W,		/*tvmode*/
+	[0x1b] = KEY_B,		/*recall*/
+};
+EXPORT_SYMBOL_GPL(ir_codes_dm1105_nec);
diff --git a/drivers/media/dvb/dm1105/dm1105.c b/drivers/media/dvb/dm1105/dm1105.c
index d9f55beb4890..5b20cf5a29f0 100644
--- a/drivers/media/dvb/dm1105/dm1105.c
+++ b/drivers/media/dvb/dm1105/dm1105.c
@@ -156,46 +156,12 @@ MODULE_PARM_DESC(ir_debug, "enable debugging information for IR decoding");
 
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
-static u16 ir_codes_dm1105_nec[128] = {
-	[0x0a] = KEY_Q,		/*power*/
-	[0x0c] = KEY_M,		/*mute*/
-	[0x11] = KEY_1,
-	[0x12] = KEY_2,
-	[0x13] = KEY_3,
-	[0x14] = KEY_4,
-	[0x15] = KEY_5,
-	[0x16] = KEY_6,
-	[0x17] = KEY_7,
-	[0x18] = KEY_8,
-	[0x19] = KEY_9,
-	[0x10] = KEY_0,
-	[0x1c] = KEY_PAGEUP,	/*ch+*/
-	[0x0f] = KEY_PAGEDOWN,	/*ch-*/
-	[0x1a] = KEY_O,		/*vol+*/
-	[0x0e] = KEY_Z,		/*vol-*/
-	[0x04] = KEY_R,		/*rec*/
-	[0x09] = KEY_D,		/*fav*/
-	[0x08] = KEY_BACKSPACE,	/*rewind*/
-	[0x07] = KEY_A,		/*fast*/
-	[0x0b] = KEY_P,		/*pause*/
-	[0x02] = KEY_ESC,	/*cancel*/
-	[0x03] = KEY_G,		/*tab*/
-	[0x00] = KEY_UP,	/*up*/
-	[0x1f] = KEY_ENTER,	/*ok*/
-	[0x01] = KEY_DOWN,	/*down*/
-	[0x05] = KEY_C,		/*cap*/
-	[0x06] = KEY_S,		/*stop*/
-	[0x40] = KEY_F,		/*full*/
-	[0x1e] = KEY_W,		/*tvmode*/
-	[0x1b] = KEY_B,		/*recall*/
-};
-
 /* infrared remote control */
 struct infrared {
-	u16	key_map[128];
 	struct input_dev	*input_dev;
+	struct ir_input_state	ir;
 	char			input_phys[32];
-	struct tasklet_struct	ir_tasklet;
+	struct work_struct	work;
 	u32			ir_command;
 };
 
@@ -237,8 +203,6 @@ struct dm1105dvb {
 
 #define dm_io_mem(reg)	((unsigned long)(&dm1105dvb->io_mem[reg]))
 
-static struct dm1105dvb *dm1105dvb_local;
-
 static int dm1105_i2c_xfer(struct i2c_adapter *i2c_adap,
 			    struct i2c_msg *msgs, int num)
 {
@@ -411,31 +375,20 @@ static int dm1105dvb_stop_feed(struct dvb_demux_feed *f)
 	return 0;
 }
 
-/* ir tasklet */
-static void dm1105_emit_key(unsigned long parm)
+/* ir work handler */
+static void dm1105_emit_key(struct work_struct *work)
 {
-	struct infrared *ir = (struct infrared *) parm;
+	struct infrared *ir = container_of(work, struct infrared, work);
 	u32 ircom = ir->ir_command;
 	u8 data;
-	u16 keycode;
 
 	if (ir_debug)
 		printk(KERN_INFO "%s: received byte 0x%04x\n", __func__, ircom);
 
 	data = (ircom >> 8) & 0x7f;
 
-	input_event(ir->input_dev, EV_MSC, MSC_RAW, (0x0000f8 << 16) | data);
-	input_event(ir->input_dev, EV_MSC, MSC_SCAN, data);
-	keycode = ir->key_map[data];
-
-	if (!keycode)
-		return;
-
-	input_event(ir->input_dev, EV_KEY, keycode, 1);
-	input_sync(ir->input_dev);
-	input_event(ir->input_dev, EV_KEY, keycode, 0);
-	input_sync(ir->input_dev);
-
+	ir_input_keydown(ir->input_dev, &ir->ir, data, data);
+	ir_input_nokey(ir->input_dev, &ir->ir);
 }
 
 /* work handler */
@@ -491,34 +444,19 @@ static irqreturn_t dm1105dvb_irq(int irq, void *dev_id)
 		break;
 	case INTSTS_IR:
 		dm1105dvb->ir.ir_command = inl(dm_io_mem(DM1105_IRCODE));
-		tasklet_schedule(&dm1105dvb->ir.ir_tasklet);
+		schedule_work(&dm1105dvb->ir.work);
 		break;
 	}
 
 	return IRQ_HANDLED;
 }
 
-/* register with input layer */
-static void input_register_keys(struct infrared *ir)
-{
-	int i;
-
-	memset(ir->input_dev->keybit, 0, sizeof(ir->input_dev->keybit));
-
-	for (i = 0; i < ARRAY_SIZE(ir->key_map); i++)
-			set_bit(ir->key_map[i], ir->input_dev->keybit);
-
-	ir->input_dev->keycode = ir->key_map;
-	ir->input_dev->keycodesize = sizeof(ir->key_map[0]);
-	ir->input_dev->keycodemax = ARRAY_SIZE(ir->key_map);
-}
-
 int __devinit dm1105_ir_init(struct dm1105dvb *dm1105)
 {
 	struct input_dev *input_dev;
-	int err;
-
-	dm1105dvb_local = dm1105;
+	IR_KEYTAB_TYPE *ir_codes = ir_codes_dm1105_nec;
+	int ir_type = IR_TYPE_OTHER;
+	int err = -ENOMEM;
 
 	input_dev = input_allocate_device();
 	if (!input_dev)
@@ -528,12 +466,11 @@ int __devinit dm1105_ir_init(struct dm1105dvb *dm1105)
 	snprintf(dm1105->ir.input_phys, sizeof(dm1105->ir.input_phys),
 		"pci-%s/ir0", pci_name(dm1105->pdev));
 
-	input_dev->evbit[0] = BIT(EV_KEY);
+	ir_input_init(input_dev, &dm1105->ir.ir, ir_type, ir_codes);
 	input_dev->name = "DVB on-card IR receiver";
-
 	input_dev->phys = dm1105->ir.input_phys;
 	input_dev->id.bustype = BUS_PCI;
-	input_dev->id.version = 2;
+	input_dev->id.version = 1;
 	if (dm1105->pdev->subsystem_vendor) {
 		input_dev->id.vendor = dm1105->pdev->subsystem_vendor;
 		input_dev->id.product = dm1105->pdev->subsystem_device;
@@ -541,25 +478,22 @@ int __devinit dm1105_ir_init(struct dm1105dvb *dm1105)
 		input_dev->id.vendor = dm1105->pdev->vendor;
 		input_dev->id.product = dm1105->pdev->device;
 	}
+
 	input_dev->dev.parent = &dm1105->pdev->dev;
-	/* initial keymap */
-	memcpy(dm1105->ir.key_map, ir_codes_dm1105_nec, sizeof dm1105->ir.key_map);
-	input_register_keys(&dm1105->ir);
+
+	INIT_WORK(&dm1105->ir.work, dm1105_emit_key);
+
 	err = input_register_device(input_dev);
 	if (err) {
 		input_free_device(input_dev);
 		return err;
 	}
 
-	tasklet_init(&dm1105->ir.ir_tasklet, dm1105_emit_key, (unsigned long) &dm1105->ir);
-
 	return 0;
 }
 
-
 void __devexit dm1105_ir_exit(struct dm1105dvb *dm1105)
 {
-	tasklet_kill(&dm1105->ir.ir_tasklet);
 	input_unregister_device(dm1105->ir.input_dev);
 
 }
diff --git a/include/media/ir-common.h b/include/media/ir-common.h
index 135e02270c9b..7b5b91f60425 100644
--- a/include/media/ir-common.h
+++ b/include/media/ir-common.h
@@ -161,6 +161,7 @@ extern IR_KEYTAB_TYPE ir_codes_msi_tvanywhere_plus[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_ati_tv_wonder_hd_600[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_kworld_plus_tv_analog[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_kaiomy[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_dm1105_nec[IR_KEYTAB_SIZE];
 #endif
 
 /*
-- 
cgit v1.2.3


From fa3e70360c86480acbaa54c9791e843196327a66 Mon Sep 17 00:00:00 2001
From: Andy Walls <awalls@radix.net>
Date: Mon, 16 Feb 2009 02:23:25 -0300
Subject: V4L/DVB (10757): cx18, v4l2-chip-ident: Finish conversion of AV
 decoder core to v4l2_subdev

Added a new chip identifer to v4l2-chip-ident for the integrated A/V broadcast
decoder core internal to the CX23418.  Completed separation and encapsulation
of the A/V decoder core interface as a v4l2_subdevice.  The cx18 driver now
compiles and links again.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/cx18/cx18-av-core.c  | 85 +++++++++++++++++++++++---------
 drivers/media/video/cx18/cx18-av-core.h  | 10 ++--
 drivers/media/video/cx18/cx18-controls.c |  8 +--
 drivers/media/video/cx18/cx18-driver.c   | 18 ++++---
 drivers/media/video/cx18/cx18-driver.h   |  1 +
 drivers/media/video/cx18/cx18-firmware.c | 18 -------
 drivers/media/video/cx18/cx18-i2c.c      |  4 +-
 drivers/media/video/cx18/cx18-ioctl.c    | 14 +++---
 drivers/media/video/cx18/cx18-streams.c  |  2 +-
 drivers/media/video/cx18/cx18-vbi.c      |  2 +-
 drivers/media/video/cx18/cx18-video.c    |  2 +-
 include/media/v4l2-chip-ident.h          |  3 +-
 12 files changed, 100 insertions(+), 67 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c
index 9b30f77b5205..f9bb77a25ee9 100644
--- a/drivers/media/video/cx18/cx18-av-core.c
+++ b/drivers/media/video/cx18/cx18-av-core.c
@@ -201,15 +201,45 @@ static int cx18_av_reset(struct v4l2_subdev *sd, u32 val)
 	return 0;
 }
 
-static int cx18_av_init_hardware(struct v4l2_subdev *sd, u32 val)
+static int cx18_av_init(struct v4l2_subdev *sd, u32 val)
 {
 	struct cx18_av_state *state = to_cx18_av_state(sd);
 	struct cx18 *cx = v4l2_get_subdevdata(sd);
 
-	if (!state->is_initialized) {
-		/* initialize on first use */
-		state->is_initialized = 1;
-		cx18_av_initialize(cx);
+	switch (val) {
+	case CX18_AV_INIT_PLLS:
+		/*
+		 * The crystal freq used in calculations in this driver will be
+		 * 28.636360 MHz.
+		 * Aim to run the PLLs' VCOs near 400 MHz to minimze errors.
+		 */
+
+		/*
+		 * VDCLK  Integer = 0x0f, Post Divider = 0x04
+		 * AIMCLK Integer = 0x0e, Post Divider = 0x16
+		 */
+		cx18_av_write4(cx, CXADEC_PLL_CTRL1, 0x160e040f);
+
+		/* VDCLK Fraction = 0x2be2fe */
+		/* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz before post divide */
+		cx18_av_write4(cx, CXADEC_VID_PLL_FRAC, 0x002be2fe);
+
+		/* AIMCLK Fraction = 0x05227ad */
+		/* xtal * 0xe.2913d68/0x16 = 48000 * 384: 406 MHz pre post-div*/
+		cx18_av_write4(cx, CXADEC_AUX_PLL_FRAC, 0x005227ad);
+
+		/* SA_MCLK_SEL=1, SA_MCLK_DIV=0x16 */
+		cx18_av_write(cx, CXADEC_I2S_MCLK, 0x56);
+		break;
+
+	case CX18_AV_INIT_NORMAL:
+	default:
+		if (!state->is_initialized) {
+			/* initialize on first use */
+			state->is_initialized = 1;
+			cx18_av_initialize(cx);
+		}
+		break;
 	}
 	return 0;
 }
@@ -1095,14 +1125,11 @@ static inline int cx18_av_dbg_match(const struct v4l2_dbg_match *match)
 static int cx18_av_g_chip_ident(struct v4l2_subdev *sd,
 				struct v4l2_dbg_chip_ident *chip)
 {
+	struct cx18_av_state *state = to_cx18_av_state(sd);
+
 	if (cx18_av_dbg_match(&chip->match)) {
-		/*
-		 * Nothing else is going to claim to be this combination,
-		 * and the real host chip revision will be returned by a host
-		 * match on address 0.
-		 */
-		chip->ident = V4L2_IDENT_CX25843;
-		chip->revision = V4L2_IDENT_CX23418; /* Why not */
+		chip->ident = state->id;
+		chip->revision = state->rev;
 	}
 	return 0;
 }
@@ -1143,7 +1170,7 @@ static int cx18_av_s_register(struct v4l2_subdev *sd,
 static const struct v4l2_subdev_core_ops cx18_av_general_ops = {
 	.g_chip_ident = cx18_av_g_chip_ident,
 	.log_status = cx18_av_log_status,
-	.init = cx18_av_init_hardware,
+	.init = cx18_av_init,
 	.reset = cx18_av_reset,
 	.queryctrl = cx18_av_queryctrl,
 	.g_ctrl = cx18_av_g_ctrl,
@@ -1182,19 +1209,31 @@ static const struct v4l2_subdev_ops cx18_av_ops = {
 	.video = &cx18_av_video_ops,
 };
 
-int cx18_av_init(struct cx18 *cx)
+int cx18_av_probe(struct cx18 *cx, struct v4l2_subdev **sd)
 {
-	struct v4l2_subdev *sd = &cx->av_state.sd;
-
-	v4l2_subdev_init(sd, &cx18_av_ops);
-	v4l2_set_subdevdata(sd, cx);
-	snprintf(sd->name, sizeof(sd->name),
-		 "%s-internal A/V decoder", cx->v4l2_dev.name);
-	sd->grp_id = CX18_HW_CX23418;
-	return v4l2_device_register_subdev(&cx->v4l2_dev, sd);
+	struct cx18_av_state *state = &cx->av_state;
+
+	state->rev = cx18_av_read4(cx, CXADEC_CHIP_CTRL) & 0xffff;
+	state->id = ((state->rev >> 4) == CXADEC_CHIP_TYPE_MAKO)
+		    ? V4L2_IDENT_CX23418_843 : V4L2_IDENT_UNKNOWN;
+
+	state->vid_input = CX18_AV_COMPOSITE7;
+	state->aud_input = CX18_AV_AUDIO8;
+	state->audclk_freq = 48000;
+	state->audmode = V4L2_TUNER_MODE_LANG1;
+	state->slicer_line_delay = 0;
+	state->slicer_line_offset = (10 + state->slicer_line_delay - 2);
+
+	*sd = &state->sd;
+	v4l2_subdev_init(*sd, &cx18_av_ops);
+	v4l2_set_subdevdata(*sd, cx);
+	snprintf((*sd)->name, sizeof((*sd)->name),
+		 "%s internal A/V decoder", cx->v4l2_dev.name);
+	(*sd)->grp_id = CX18_HW_CX23418;
+	return v4l2_device_register_subdev(&cx->v4l2_dev, *sd);
 }
 
-void cx18_av_fini(struct cx18 *cx)
+void cx18_av_exit(struct cx18 *cx, struct v4l2_subdev *sd)
 {
 	v4l2_device_unregister_subdev(&cx->av_state.sd);
 }
diff --git a/drivers/media/video/cx18/cx18-av-core.h b/drivers/media/video/cx18/cx18-av-core.h
index 025100aee4b8..90bdca960292 100644
--- a/drivers/media/video/cx18/cx18-av-core.h
+++ b/drivers/media/video/cx18/cx18-av-core.h
@@ -323,6 +323,11 @@ static inline struct cx18_av_state *to_cx18_av_state(struct v4l2_subdev *sd)
 	return container_of(sd, struct cx18_av_state, sd);
 }
 
+enum cx18_av_subdev_init_arg {
+	CX18_AV_INIT_NORMAL = 0,
+	CX18_AV_INIT_PLLS = 1,
+};
+
 /* ----------------------------------------------------------------------- */
 /* cx18_av-core.c 							   */
 int cx18_av_write(struct cx18 *cx, u16 addr, u8 value);
@@ -337,9 +342,8 @@ int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned mask, u8 value);
 int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 mask, u32 value);
 void cx18_av_std_setup(struct cx18 *cx);
 
-int cx18_av_cmd(struct cx18 *cx, int cmd, void *arg); /* FIXME - Remove */
-int cx18_av_init(struct cx18 *cx);
-void cx18_av_fini(struct cx18 *cx);
+int cx18_av_probe(struct cx18 *cx, struct v4l2_subdev **sd);
+void cx18_av_exit(struct cx18 *cx, struct v4l2_subdev *sd);
 
 /* ----------------------------------------------------------------------- */
 /* cx18_av-firmware.c                                                      */
diff --git a/drivers/media/video/cx18/cx18-controls.c b/drivers/media/video/cx18/cx18-controls.c
index 10a4e07b7aca..9505c417371d 100644
--- a/drivers/media/video/cx18/cx18-controls.c
+++ b/drivers/media/video/cx18/cx18-controls.c
@@ -67,7 +67,7 @@ int cx18_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl)
 	case V4L2_CID_HUE:
 	case V4L2_CID_SATURATION:
 	case V4L2_CID_CONTRAST:
-		if (cx18_av_cmd(cx, VIDIOC_QUERYCTRL, qctrl))
+		if (v4l2_subdev_call(cx->sd_av, core, queryctrl, qctrl))
 			qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
 		return 0;
 
@@ -126,7 +126,7 @@ static int cx18_s_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
 	case V4L2_CID_HUE:
 	case V4L2_CID_SATURATION:
 	case V4L2_CID_CONTRAST:
-		return cx18_av_cmd(cx, VIDIOC_S_CTRL, vctrl);
+		return v4l2_subdev_call(cx->sd_av, core, s_ctrl, vctrl);
 
 	case V4L2_CID_AUDIO_VOLUME:
 	case V4L2_CID_AUDIO_MUTE:
@@ -151,7 +151,7 @@ static int cx18_g_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
 	case V4L2_CID_HUE:
 	case V4L2_CID_SATURATION:
 	case V4L2_CID_CONTRAST:
-		return cx18_av_cmd(cx, VIDIOC_G_CTRL, vctrl);
+		return v4l2_subdev_call(cx->sd_av, core, g_ctrl, vctrl);
 
 	case V4L2_CID_AUDIO_VOLUME:
 	case V4L2_CID_AUDIO_MUTE:
@@ -278,7 +278,7 @@ int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
 			fmt.fmt.pix.width = cx->params.width
 						/ (is_mpeg1 ? 2 : 1);
 			fmt.fmt.pix.height = cx->params.height;
-			cx18_av_cmd(cx, VIDIOC_S_FMT, &fmt);
+			v4l2_subdev_call(cx->sd_av, video, s_fmt, &fmt);
 		}
 		priv.cx = cx;
 		priv.s = &cx->streams[id->type];
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index f69e688ab6f4..f5a41dd663dc 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -621,13 +621,6 @@ static void __devinit cx18_init_struct2(struct cx18 *cx)
 		i = 0;
 	cx->active_input = i;
 	cx->audio_input = cx->card->video_inputs[i].audio_index;
-	cx->av_state.vid_input = CX18_AV_COMPOSITE7;
-	cx->av_state.aud_input = CX18_AV_AUDIO8;
-	cx->av_state.audclk_freq = 48000;
-	cx->av_state.audmode = V4L2_TUNER_MODE_LANG1;
-	cx->av_state.slicer_line_delay = 0;
-	cx->av_state.slicer_line_offset =
-		(10 + cx->av_state.slicer_line_delay - 2);
 }
 
 static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *pci_dev,
@@ -812,6 +805,14 @@ static int __devinit cx18_probe(struct pci_dev *pci_dev,
 
 	cx18_gpio_init(cx);
 
+	retval = cx18_av_probe(cx, &cx->sd_av);
+	if (retval) {
+		CX18_ERR("Could not register A/V decoder subdevice\n");
+		goto free_map;
+	}
+	/* Initialize the A/V decoder PLLs to sane defaults */
+	v4l2_subdev_call(cx->sd_av, core, init, (u32) CX18_AV_INIT_PLLS);
+
 	/* active i2c  */
 	CX18_DEBUG_INFO("activating i2c...\n");
 	retval = init_cx18_i2c(cx);
@@ -1020,6 +1021,9 @@ int cx18_init_on_first_open(struct cx18 *cx)
 	cx18_vapi(cx, CX18_APU_RESETAI, 0);
 	cx18_vapi(cx, CX18_APU_STOP, 1, CX18_APU_ENCODING_METHOD_MPEG);
 
+	/* Init the A/V decoder, if it hasn't been already */
+	v4l2_subdev_call(cx->sd_av, core, init, (u32) CX18_AV_INIT_NORMAL);
+
 	vf.tuner = 0;
 	vf.type = V4L2_TUNER_ANALOG_TV;
 	vf.frequency = 6400; /* the tuner 'baseline' frequency */
diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h
index def82bd1078a..4b50878fc265 100644
--- a/drivers/media/video/cx18/cx18-driver.h
+++ b/drivers/media/video/cx18/cx18-driver.h
@@ -448,6 +448,7 @@ struct cx18 {
 	int instance;
 	struct pci_dev *pci_dev;
 	struct v4l2_device v4l2_dev;
+	struct v4l2_subdev *sd_av;
 
 	const struct cx18_card *card;	/* card information */
 	const char *card_name;  /* full name of the card */
diff --git a/drivers/media/video/cx18/cx18-firmware.c b/drivers/media/video/cx18/cx18-firmware.c
index aa89bee65af0..83cd559cc609 100644
--- a/drivers/media/video/cx18/cx18-firmware.c
+++ b/drivers/media/video/cx18/cx18-firmware.c
@@ -26,7 +26,6 @@
 #include "cx18-irq.h"
 #include "cx18-firmware.h"
 #include "cx18-cards.h"
-#include "cx18-av-core.h"
 #include <linux/firmware.h>
 
 #define CX18_PROC_SOFT_RESET 		0xc70010
@@ -286,23 +285,6 @@ void cx18_init_power(struct cx18 *cx, int lowpwr)
 	cx18_write_reg(cx, 0x2BE2FE, CX18_MPEG_CLOCK_PLL_FRAC);
 	cx18_write_reg(cx, 8, CX18_MPEG_CLOCK_PLL_POST);
 
-	/*
-	 * VDCLK  Integer = 0x0f, Post Divider = 0x04
-	 * AIMCLK Integer = 0x0e, Post Divider = 0x16
-	 */
-	cx18_av_write4(cx, CXADEC_PLL_CTRL1, 0x160e040f);
-
-	/* VDCLK Fraction = 0x2be2fe */
-	/* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz before post divide */
-	cx18_av_write4(cx, CXADEC_VID_PLL_FRAC, 0x002be2fe);
-
-	/* AIMCLK Fraction = 0x05227ad */
-	/* xtal * 0xe.2913d68/0x16 = 48000 * 384: 406 MHz before post-divide */
-	cx18_av_write4(cx, CXADEC_AUX_PLL_FRAC, 0x005227ad);
-
-	/* SA_MCLK_SEL=1, SA_MCLK_DIV=0x16 */
-	cx18_av_write(cx, CXADEC_I2S_MCLK, 0x56);
-
 	/* Defaults */
 	/* APU = SC or SC/2 = 125/62.5 */
 	/* EPU = SC = 125 */
diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c
index db2c3e6997d0..db7b55281f50 100644
--- a/drivers/media/video/cx18/cx18-i2c.c
+++ b/drivers/media/video/cx18/cx18-i2c.c
@@ -304,7 +304,7 @@ int cx18_i2c_hw(struct cx18 *cx, u32 hw, unsigned int cmd, void *arg)
 		return cx18_gpio(cx, cmd, arg);
 
 	if (hw == CX18_HW_CX23418)
-		return cx18_av_cmd(cx, cmd, arg);
+		return v4l2_subdev_command(cx->sd_av, cmd, arg);
 
 	addr = cx18_i2c_hw_addr(cx, hw);
 	if (addr < 0) {
@@ -322,7 +322,7 @@ void cx18_call_i2c_clients(struct cx18 *cx, unsigned int cmd, void *arg)
 		CX18_ERR("adapter is not set\n");
 		return;
 	}
-	cx18_av_cmd(cx, cmd, arg);
+	v4l2_subdev_command(cx->sd_av, cmd, arg);
 	i2c_clients_command(&cx->i2c_adap[0], cmd, arg);
 	i2c_clients_command(&cx->i2c_adap[1], cmd, arg);
 	if (cx->hw_flags & CX18_HW_GPIO)
diff --git a/drivers/media/video/cx18/cx18-ioctl.c b/drivers/media/video/cx18/cx18-ioctl.c
index 3277b3d3ceae..0ddf4dd55308 100644
--- a/drivers/media/video/cx18/cx18-ioctl.c
+++ b/drivers/media/video/cx18/cx18-ioctl.c
@@ -208,7 +208,7 @@ static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
 	 * digitizer/slicer.  Note, cx18_av_vbi() wipes the passed in
 	 * fmt->fmt.sliced under valid calling conditions
 	 */
-	if (cx18_av_cmd(cx, VIDIOC_G_FMT, fmt))
+	if (v4l2_subdev_call(cx->sd_av, video, g_fmt, fmt))
 		return -EINVAL;
 
 	/* Ensure V4L2 spec compliant output */
@@ -295,7 +295,7 @@ static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
 
 	cx->params.width = w;
 	cx->params.height = h;
-	cx18_av_cmd(cx, VIDIOC_S_FMT, fmt);
+	v4l2_subdev_call(cx->sd_av, video, s_fmt, fmt);
 	return cx18_g_fmt_vid_cap(file, fh, fmt);
 }
 
@@ -322,7 +322,7 @@ static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
 	 * Note cx18_av_vbi_wipes out alot of the passed in fmt under valid
 	 * calling conditions
 	 */
-	ret = cx18_av_cmd(cx, VIDIOC_S_FMT, fmt);
+	ret = v4l2_subdev_call(cx->sd_av, video, s_fmt, fmt);
 	if (ret)
 		return ret;
 
@@ -359,7 +359,7 @@ static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
 	 * Note, cx18_av_vbi() wipes some "impossible" service lines in the
 	 * passed in fmt->fmt.sliced under valid calling conditions
 	 */
-	ret = cx18_av_cmd(cx, VIDIOC_S_FMT, fmt);
+	ret = v4l2_subdev_call(cx->sd_av, video, s_fmt, fmt);
 	if (ret)
 		return ret;
 	/* Store our current v4l2 sliced VBI settings */
@@ -516,7 +516,8 @@ static int cx18_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 
 	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		return -EINVAL;
-	return cx18_av_cmd(cx, VIDIOC_S_CROP, crop);
+	CX18_DEBUG_WARN("VIDIOC_S_CROP not implemented\n");
+	return -EINVAL;
 }
 
 static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
@@ -525,7 +526,8 @@ static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 
 	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		return -EINVAL;
-	return cx18_av_cmd(cx, VIDIOC_G_CROP, crop);
+	CX18_DEBUG_WARN("VIDIOC_G_CROP not implemented\n");
+	return -EINVAL;
 }
 
 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index eff4a14d0152..1d17884b3b0d 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -348,7 +348,7 @@ static void cx18_vbi_setup(struct cx18_stream *s)
 	}
 
 	/* setup VBI registers */
-	cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in);
+	v4l2_subdev_call(cx->sd_av, video, s_fmt, &cx->vbi.in);
 
 	/*
 	 * Send the CX18_CPU_SET_RAW_VBI_PARAM API command to setup Encoder Raw
diff --git a/drivers/media/video/cx18/cx18-vbi.c b/drivers/media/video/cx18/cx18-vbi.c
index 8e6f4d4aff9a..91c21dce607f 100644
--- a/drivers/media/video/cx18/cx18-vbi.c
+++ b/drivers/media/video/cx18/cx18-vbi.c
@@ -154,7 +154,7 @@ static u32 compress_sliced_buf(struct cx18 *cx, u32 line, u8 *buf,
 		if (p[0] != 0xff || p[1] || p[2] || p[3] != eav)
 			continue;
 		vbi.p = p + 4;
-		cx18_av_cmd(cx, VIDIOC_INT_DECODE_VBI_LINE, &vbi);
+		v4l2_subdev_call(cx->sd_av, video, decode_vbi_line, &vbi);
 		if (vbi.type) {
 			cx->vbi.sliced_data[line].id = vbi.type;
 			cx->vbi.sliced_data[line].field = vbi.is_second_field;
diff --git a/drivers/media/video/cx18/cx18-video.c b/drivers/media/video/cx18/cx18-video.c
index 2e5c41939330..fabacb0f87c6 100644
--- a/drivers/media/video/cx18/cx18-video.c
+++ b/drivers/media/video/cx18/cx18-video.c
@@ -32,7 +32,7 @@ void cx18_video_set_io(struct cx18 *cx)
 
 	route.input = cx->card->video_inputs[inp].video_input;
 	route.output = 0;
-	cx18_av_cmd(cx, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+	v4l2_subdev_call(cx->sd_av, video, s_routing, &route);
 
 	type = cx->card->video_inputs[inp].video_type;
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index a5339d8ba9a4..70117e748f20 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -64,7 +64,8 @@ enum {
 	/* module saa7146: reserved range 300-309 */
 	V4L2_IDENT_SAA7146 = 300,
 
-	/* Conexant MPEG encoder/decoders: reserved range 410-420 */
+	/* Conexant MPEG encoder/decoders: reserved range 400-420 */
+	V4L2_IDENT_CX23418_843 = 403, /* Integrated A/V Decoder on the '418 */
 	V4L2_IDENT_CX23415 = 415,
 	V4L2_IDENT_CX23416 = 416,
 	V4L2_IDENT_CX23418 = 418,
-- 
cgit v1.2.3


From 9b76ede411145d7456ae5e467b65003ca7990b06 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Fri, 27 Feb 2009 11:51:24 -0300
Subject: V4L/DVB (10771): tea575x-tuner: convert it to V4L2 API

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/sound/tea575x-tuner.h   |   8 +-
 sound/i2c/other/tea575x-tuner.c | 302 +++++++++++++++++++++++++++-------------
 sound/pci/Kconfig               |   2 +-
 3 files changed, 212 insertions(+), 100 deletions(-)

(limited to 'include')

diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h
index 426899e529c5..5718a02d3afb 100644
--- a/include/sound/tea575x-tuner.h
+++ b/include/sound/tea575x-tuner.h
@@ -22,8 +22,9 @@
  *
  */
 
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
 #include <media/v4l2-dev.h>
+#include <media/v4l2-ioctl.h>
 
 struct snd_tea575x;
 
@@ -35,11 +36,10 @@ struct snd_tea575x_ops {
 
 struct snd_tea575x {
 	struct snd_card *card;
-	struct video_device vd;		/* video device */
-	struct v4l2_file_operations fops;
+	struct video_device *vd;	/* video device */
 	int dev_nr;			/* requested device number + 1 */
-	int vd_registered;		/* video device is registered */
 	int tea5759;			/* 5759 chip is present */
+	int mute;			/* Device is muted? */
 	unsigned int freq_fixup;	/* crystal onboard */
 	unsigned int val;		/* hw value */
 	unsigned long freq;		/* frequency */
diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c
index 9d98a6658ac9..d31c373e076d 100644
--- a/sound/i2c/other/tea575x-tuner.c
+++ b/sound/i2c/other/tea575x-tuner.c
@@ -24,6 +24,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
+#include <linux/version.h>
 #include <sound/core.h>
 #include <sound/tea575x-tuner.h>
 
@@ -31,6 +32,13 @@ MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 MODULE_DESCRIPTION("Routines for control of TEA5757/5759 Philips AM/FM radio tuner chips");
 MODULE_LICENSE("GPL");
 
+static int radio_nr = -1;
+module_param(radio_nr, int, 0);
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
+#define FREQ_LO		 (87 * 16000)
+#define FREQ_HI		(108 * 16000)
+
 /*
  * definitions
  */
@@ -53,6 +61,17 @@ MODULE_LICENSE("GPL");
 #define TEA575X_BIT_DUMMY	(1<<15)		/* buffer */
 #define TEA575X_BIT_FREQ_MASK	0x7fff
 
+static struct v4l2_queryctrl radio_qctrl[] = {
+	{
+		.id            = V4L2_CID_AUDIO_MUTE,
+		.name          = "Mute",
+		.minimum       = 0,
+		.maximum       = 1,
+		.default_value = 1,
+		.type          = V4L2_CTRL_TYPE_BOOLEAN,
+	}
+};
+
 /*
  * lowlevel part
  */
@@ -84,94 +103,146 @@ static void snd_tea575x_set_freq(struct snd_tea575x *tea)
  * Linux Video interface
  */
 
-static long snd_tea575x_ioctl(struct file *file,
-			     unsigned int cmd, unsigned long data)
+static int vidioc_querycap(struct file *file, void  *priv,
+					struct v4l2_capability *v)
 {
 	struct snd_tea575x *tea = video_drvdata(file);
-	void __user *arg = (void __user *)data;
-
-	switch(cmd) {
-		case VIDIOCGCAP:
-		{
-			struct video_capability v;
-			v.type = VID_TYPE_TUNER;
-			v.channels = 1;
-			v.audios = 1;
-			/* No we don't do pictures */
-			v.maxwidth = 0;
-			v.maxheight = 0;
-			v.minwidth = 0;
-			v.minheight = 0;
-			strcpy(v.name, tea->tea5759 ? "TEA5759" : "TEA5757");
-			if (copy_to_user(arg,&v,sizeof(v)))
-				return -EFAULT;
-			return 0;
-		}
-		case VIDIOCGTUNER:
-		{
-			struct video_tuner v;
-			if (copy_from_user(&v, arg,sizeof(v))!=0)
-				return -EFAULT;
-			if (v.tuner)	/* Only 1 tuner */
-				return -EINVAL;
-			v.rangelow = (87*16000);
-			v.rangehigh = (108*16000);
-			v.flags = VIDEO_TUNER_LOW;
-			v.mode = VIDEO_MODE_AUTO;
-			strcpy(v.name, "FM");
-			v.signal = 0xFFFF;
-			if (copy_to_user(arg, &v, sizeof(v)))
-				return -EFAULT;
-			return 0;
-		}
-		case VIDIOCSTUNER:
-		{
-			struct video_tuner v;
-			if(copy_from_user(&v, arg, sizeof(v)))
-				return -EFAULT;
-			if(v.tuner!=0)
-				return -EINVAL;
-			/* Only 1 tuner so no setting needed ! */
+
+	strcpy(v->card, tea->tea5759 ? "TEA5759" : "TEA5757");
+	strlcpy(v->driver, "tea575x-tuner", sizeof(v->driver));
+	strlcpy(v->card, "Maestro Radio", sizeof(v->card));
+	sprintf(v->bus_info, "PCI");
+	v->version = RADIO_VERSION;
+	v->capabilities = V4L2_CAP_TUNER;
+	return 0;
+}
+
+static int vidioc_g_tuner(struct file *file, void *priv,
+					struct v4l2_tuner *v)
+{
+	if (v->index > 0)
+		return -EINVAL;
+
+	strcpy(v->name, "FM");
+	v->type = V4L2_TUNER_RADIO;
+	v->rangelow = FREQ_LO;
+	v->rangehigh = FREQ_HI;
+	v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
+	v->capability = V4L2_TUNER_CAP_LOW;
+	v->audmode = V4L2_TUNER_MODE_MONO;
+	v->signal = 0xffff;
+	return 0;
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv,
+					struct v4l2_tuner *v)
+{
+	if (v->index > 0)
+		return -EINVAL;
+	return 0;
+}
+
+static int vidioc_g_frequency(struct file *file, void *priv,
+					struct v4l2_frequency *f)
+{
+	struct snd_tea575x *tea = video_drvdata(file);
+
+	f->type = V4L2_TUNER_RADIO;
+	f->frequency = tea->freq;
+	return 0;
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+					struct v4l2_frequency *f)
+{
+	struct snd_tea575x *tea = video_drvdata(file);
+
+	if (f->frequency < FREQ_LO || f->frequency > FREQ_HI)
+		return -EINVAL;
+
+	tea->freq = f->frequency;
+
+	snd_tea575x_set_freq(tea);
+
+	return 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
+{
+	if (a->index > 1)
+		return -EINVAL;
+
+	strcpy(a->name, "Radio");
+	a->capability = V4L2_AUDCAP_STEREO;
+	return 0;
+}
+
+static int vidioc_s_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
+{
+	if (a->index != 0)
+		return -EINVAL;
+	return 0;
+}
+
+static int vidioc_queryctrl(struct file *file, void *priv,
+					struct v4l2_queryctrl *qc)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
+		if (qc->id && qc->id == radio_qctrl[i].id) {
+			memcpy(qc, &(radio_qctrl[i]),
+						sizeof(*qc));
 			return 0;
 		}
-		case VIDIOCGFREQ:
-			if(copy_to_user(arg, &tea->freq, sizeof(tea->freq)))
-				return -EFAULT;
-			return 0;
-		case VIDIOCSFREQ:
-			if(copy_from_user(&tea->freq, arg, sizeof(tea->freq)))
-				return -EFAULT;
-			snd_tea575x_set_freq(tea);
-			return 0;
-		case VIDIOCGAUDIO:
-		{
-			struct video_audio v;
-			memset(&v, 0, sizeof(v));
-			strcpy(v.name, "Radio");
-			if(copy_to_user(arg,&v, sizeof(v)))
-				return -EFAULT;
+	}
+	return -EINVAL;
+}
+
+static int vidioc_g_ctrl(struct file *file, void *priv,
+					struct v4l2_control *ctrl)
+{
+	struct snd_tea575x *tea = video_drvdata(file);
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		if (tea->ops->mute) {
+			ctrl->value = tea->mute;
 			return 0;
 		}
-		case VIDIOCSAUDIO:
-		{
-			struct video_audio v;
-			if(copy_from_user(&v, arg, sizeof(v)))
-				return -EFAULT;
-			if (tea->ops->mute)
-				tea->ops->mute(tea,
-					       (v.flags &
-						VIDEO_AUDIO_MUTE) ? 1 : 0);
-			if(v.audio)
-				return -EINVAL;
+	}
+	return -EINVAL;
+}
+
+static int vidioc_s_ctrl(struct file *file, void *priv,
+					struct v4l2_control *ctrl)
+{
+	struct snd_tea575x *tea = video_drvdata(file);
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		if (tea->ops->mute) {
+			tea->ops->mute(tea, ctrl->value);
+			tea->mute = 1;
 			return 0;
 		}
-		default:
-			return -ENOIOCTLCMD;
 	}
+	return -EINVAL;
+}
+
+static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
+{
+	*i = 0;
+	return 0;
 }
 
-static void snd_tea575x_release(struct video_device *vfd)
+static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
+	if (i != 0)
+		return -EINVAL;
+	return 0;
 }
 
 static int snd_tea575x_exclusive_open(struct file *file)
@@ -189,50 +260,91 @@ static int snd_tea575x_exclusive_release(struct file *file)
 	return 0;
 }
 
+static const struct v4l2_file_operations tea575x_fops = {
+	.owner		= THIS_MODULE,
+	.open           = snd_tea575x_exclusive_open,
+	.release        = snd_tea575x_exclusive_release,
+	.ioctl		= video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops tea575x_ioctl_ops = {
+	.vidioc_querycap    = vidioc_querycap,
+	.vidioc_g_tuner     = vidioc_g_tuner,
+	.vidioc_s_tuner     = vidioc_s_tuner,
+	.vidioc_g_audio     = vidioc_g_audio,
+	.vidioc_s_audio     = vidioc_s_audio,
+	.vidioc_g_input     = vidioc_g_input,
+	.vidioc_s_input     = vidioc_s_input,
+	.vidioc_g_frequency = vidioc_g_frequency,
+	.vidioc_s_frequency = vidioc_s_frequency,
+	.vidioc_queryctrl   = vidioc_queryctrl,
+	.vidioc_g_ctrl      = vidioc_g_ctrl,
+	.vidioc_s_ctrl      = vidioc_s_ctrl,
+};
+
+static struct video_device tea575x_radio = {
+	.name           = "tea575x-tuner",
+	.fops           = &tea575x_fops,
+	.ioctl_ops 	= &tea575x_ioctl_ops,
+	.release	= video_device_release,
+};
+
 /*
  * initialize all the tea575x chips
  */
 void snd_tea575x_init(struct snd_tea575x *tea)
 {
+	int retval;
 	unsigned int val;
+	struct video_device *tea575x_radio_inst;
 
 	val = tea->ops->read(tea);
 	if (val == 0x1ffffff || val == 0) {
-		snd_printk(KERN_ERR "Cannot find TEA575x chip\n");
+		snd_printk(KERN_ERR
+			   "tea575x-tuner: Cannot find TEA575x chip\n");
 		return;
 	}
 
-	memset(&tea->vd, 0, sizeof(tea->vd));
-	strcpy(tea->vd.name, tea->tea5759 ? "TEA5759 radio" : "TEA5757 radio");
-	tea->vd.release = snd_tea575x_release;
-	video_set_drvdata(&tea->vd, tea);
-	tea->vd.fops = &tea->fops;
 	tea->in_use = 0;
-	tea->fops.owner = tea->card->module;
-	tea->fops.open = snd_tea575x_exclusive_open;
-	tea->fops.release = snd_tea575x_exclusive_release;
-	tea->fops.ioctl = snd_tea575x_ioctl;
-	if (video_register_device(&tea->vd, VFL_TYPE_RADIO, tea->dev_nr - 1) < 0) {
-		snd_printk(KERN_ERR "unable to register tea575x tuner\n");
+	tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40;
+	tea->freq = 90500 * 16;		/* 90.5Mhz default */
+
+	tea575x_radio_inst = video_device_alloc();
+	if (tea575x_radio_inst == NULL) {
+		printk(KERN_ERR "tea575x-tuner: not enough memory\n");
 		return;
 	}
-	tea->vd_registered = 1;
 
-	tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40;
-	tea->freq = 90500 * 16;		/* 90.5Mhz default */
+	memcpy(tea575x_radio_inst, &tea575x_radio, sizeof(tea575x_radio));
+
+	strcpy(tea575x_radio.name, tea->tea5759 ?
+				   "TEA5759 radio" : "TEA5757 radio");
+
+	video_set_drvdata(tea575x_radio_inst, tea);
+
+	retval = video_register_device(tea575x_radio_inst,
+				       VFL_TYPE_RADIO, radio_nr);
+	if (retval) {
+		printk(KERN_ERR "tea575x-tuner: can't register video device!\n");
+		kfree(tea575x_radio_inst);
+		return;
+	}
 
 	snd_tea575x_set_freq(tea);
 
 	/* mute on init */
-	if (tea->ops->mute)
+	if (tea->ops->mute) {
 		tea->ops->mute(tea, 1);
+		tea->mute = 1;
+	}
+	tea->vd = tea575x_radio_inst;
 }
 
 void snd_tea575x_exit(struct snd_tea575x *tea)
 {
-	if (tea->vd_registered) {
-		video_unregister_device(&tea->vd);
-		tea->vd_registered = 0;
+	if (tea->vd) {
+		video_unregister_device(tea->vd);
+		tea->vd = NULL;
 	}
 }
 
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index ca25e6179d76..93422e3a3f0c 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -507,7 +507,7 @@ config SND_FM801
 config SND_FM801_TEA575X_BOOL
 	bool "ForteMedia FM801 + TEA5757 tuner"
 	depends on SND_FM801
-	depends on VIDEO_V4L1=y || VIDEO_V4L1=SND_FM801
+	depends on VIDEO_V4L2=y || VIDEO_V4L2=SND_FM801
 	help
 	  Say Y here to include support for soundcards based on the ForteMedia
 	  FM801 chip with a TEA5757 tuner connected to GPIO1-3 pins (Media
-- 
cgit v1.2.3


From 51f0b8d57af501624ee55e8ca15d09d5bdc2b0dd Mon Sep 17 00:00:00 2001
From: Trent Piepho <xyzzy@speakeasy.org>
Date: Wed, 4 Mar 2009 01:21:02 -0300
Subject: V4L/DVB (10813): v4l2: New function v4l2_video_std_frame_period

Some code was calling v4l2_video_std_construct() when all it cared about
was the frame period.  So make a function that just returns that and have
v4l2_video_std_construct() use it.

At this point there are no users of v4l2_video_std_construct() left outside
of v4l2-ioctl, so it could be un-exported and made static.

Change v4l2_video_std_construct() so that it doesn't zero out the struct
v4l2_standard passed in.  It's already been zeroed out in the common ioctl
code.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/bt8xx/bttv-driver.c |  6 ++---
 drivers/media/video/v4l2-ioctl.c        | 39 +++++++++++++++------------------
 include/media/v4l2-ioctl.h              |  1 +
 3 files changed, 21 insertions(+), 25 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 826ca60b42e6..1f606d816a58 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -2932,13 +2932,11 @@ static int bttv_g_parm(struct file *file, void *f,
 {
 	struct bttv_fh *fh = f;
 	struct bttv *btv = fh->btv;
-	struct v4l2_standard s;
 
 	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		return -EINVAL;
-	v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
-				 bttv_tvnorms[btv->tvnorm].name);
-	parm->parm.capture.timeperframe = s.frameperiod;
+	v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
+				    &parm->parm.capture.timeperframe);
 	return 0;
 }
 
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 64b4fda08dd5..efbc47004657 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -101,25 +101,27 @@ const char *v4l2_norm_to_name(v4l2_std_id id)
 }
 EXPORT_SYMBOL(v4l2_norm_to_name);
 
+/* Returns frame period for the given standard */
+void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod)
+{
+	if (id & V4L2_STD_525_60) {
+		frameperiod->numerator = 1001;
+		frameperiod->denominator = 30000;
+	} else {
+		frameperiod->numerator = 1;
+		frameperiod->denominator = 25;
+	}
+}
+EXPORT_SYMBOL(v4l2_video_std_frame_period);
+
 /* Fill in the fields of a v4l2_standard structure according to the
    'id' and 'transmission' parameters.  Returns negative on error.  */
 int v4l2_video_std_construct(struct v4l2_standard *vs,
 			     int id, const char *name)
 {
-	u32 index = vs->index;
-
-	memset(vs, 0, sizeof(struct v4l2_standard));
-	vs->index = index;
-	vs->id    = id;
-	if (id & V4L2_STD_525_60) {
-		vs->frameperiod.numerator = 1001;
-		vs->frameperiod.denominator = 30000;
-		vs->framelines = 525;
-	} else {
-		vs->frameperiod.numerator = 1;
-		vs->frameperiod.denominator = 25;
-		vs->framelines = 625;
-	}
+	vs->id = id;
+	v4l2_video_std_frame_period(id, &vs->frameperiod);
+	vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625;
 	strlcpy(vs->name, name, sizeof(vs->name));
 	return 0;
 }
@@ -1076,7 +1078,6 @@ static long __video_do_ioctl(struct file *file,
 			return -EINVAL;
 
 		v4l2_video_std_construct(p, curr_id, descr);
-		p->index = index;
 
 		dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, "
 				"framelines=%d\n", p->index,
@@ -1565,15 +1566,11 @@ static long __video_do_ioctl(struct file *file,
 		if (ops->vidioc_g_parm) {
 			ret = ops->vidioc_g_parm(file, fh, p);
 		} else {
-			struct v4l2_standard s;
-
 			if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 				return -EINVAL;
 
-			v4l2_video_std_construct(&s, vfd->current_norm,
-						 v4l2_norm_to_name(vfd->current_norm));
-
-			p->parm.capture.timeperframe = s.frameperiod;
+			v4l2_video_std_frame_period(vfd->current_norm,
+						    &p->parm.capture.timeperframe);
 			ret = 0;
 		}
 
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index b01c044868d0..a8b4c0b678ec 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -267,6 +267,7 @@ struct v4l2_ioctl_ops {
 
 /*  Video standard functions  */
 extern const char *v4l2_norm_to_name(v4l2_std_id id);
+extern void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod);
 extern int v4l2_video_std_construct(struct v4l2_standard *vs,
 				    int id, const char *name);
 /* Prints the ioctl in a human-readable format */
-- 
cgit v1.2.3


From 2b80a19181af3bb15ef1c022f4a56deabcc5bd5e Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 13 Feb 2009 19:38:10 -0300
Subject: V4L/DVB (10862): indycam: convert to v4l2_subdev

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/indycam.c   | 128 ++++++++++++++++++++++------------------
 include/media/v4l2-chip-ident.h |   3 +
 2 files changed, 74 insertions(+), 57 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/indycam.c b/drivers/media/video/indycam.c
index 54099e303c8d..eb5078c07a33 100644
--- a/drivers/media/video/indycam.c
+++ b/drivers/media/video/indycam.c
@@ -22,7 +22,8 @@
 /* IndyCam decodes stream of photons into digital image representation ;-) */
 #include <linux/videodev2.h>
 #include <linux/i2c.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 #include "indycam.h"
@@ -49,10 +50,15 @@ I2C_CLIENT_INSMOD;
 #endif
 
 struct indycam {
-	struct i2c_client *client;
+	struct v4l2_subdev sd;
 	u8 version;
 };
 
+static inline struct indycam *to_indycam(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct indycam, sd);
+}
+
 static const u8 initseq[] = {
 	INDYCAM_CONTROL_AGCENA,		/* INDYCAM_CONTROL */
 	INDYCAM_SHUTTER_60,		/* INDYCAM_SHUTTER */
@@ -66,8 +72,9 @@ static const u8 initseq[] = {
 
 /* IndyCam register handling */
 
-static int indycam_read_reg(struct i2c_client *client, u8 reg, u8 *value)
+static int indycam_read_reg(struct v4l2_subdev *sd, u8 reg, u8 *value)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	int ret;
 
 	if (reg == INDYCAM_REG_RESET) {
@@ -90,12 +97,12 @@ static int indycam_read_reg(struct i2c_client *client, u8 reg, u8 *value)
 	return 0;
 }
 
-static int indycam_write_reg(struct i2c_client *client, u8 reg, u8 value)
+static int indycam_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	int err;
 
-	if ((reg == INDYCAM_REG_BRIGHTNESS)
-	    || (reg == INDYCAM_REG_VERSION)) {
+	if (reg == INDYCAM_REG_BRIGHTNESS || reg == INDYCAM_REG_VERSION) {
 		dprintk("indycam_write_reg(): "
 			"skipping read-only register %d\n", reg);
 		return 0;
@@ -111,13 +118,13 @@ static int indycam_write_reg(struct i2c_client *client, u8 reg, u8 value)
 	return err;
 }
 
-static int indycam_write_block(struct i2c_client *client, u8 reg,
+static int indycam_write_block(struct v4l2_subdev *sd, u8 reg,
 			       u8 length, u8 *data)
 {
 	int i, err;
 
 	for (i = 0; i < length; i++) {
-		err = indycam_write_reg(client, reg + i, data[i]);
+		err = indycam_write_reg(sd, reg + i, data[i]);
 		if (err)
 			return err;
 	}
@@ -128,29 +135,28 @@ static int indycam_write_block(struct i2c_client *client, u8 reg,
 /* Helper functions */
 
 #ifdef INDYCAM_DEBUG
-static void indycam_regdump_debug(struct i2c_client *client)
+static void indycam_regdump_debug(struct v4l2_subdev *sd)
 {
 	int i;
 	u8 val;
 
 	for (i = 0; i < 9; i++) {
-		indycam_read_reg(client, i, &val);
+		indycam_read_reg(sd, i, &val);
 		dprintk("Reg %d = 0x%02x\n", i, val);
 	}
 }
 #endif
 
-static int indycam_get_control(struct i2c_client *client,
-			       struct v4l2_control *ctrl)
+static int indycam_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 {
-	struct indycam *camera = i2c_get_clientdata(client);
+	struct indycam *camera = to_indycam(sd);
 	u8 reg;
 	int ret = 0;
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUTOGAIN:
 	case V4L2_CID_AUTO_WHITE_BALANCE:
-		ret = indycam_read_reg(client, INDYCAM_REG_CONTROL, &reg);
+		ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, &reg);
 		if (ret)
 			return -EIO;
 		if (ctrl->id == V4L2_CID_AUTOGAIN)
@@ -161,38 +167,38 @@ static int indycam_get_control(struct i2c_client *client,
 				? 1 : 0;
 		break;
 	case V4L2_CID_EXPOSURE:
-		ret = indycam_read_reg(client, INDYCAM_REG_SHUTTER, &reg);
+		ret = indycam_read_reg(sd, INDYCAM_REG_SHUTTER, &reg);
 		if (ret)
 			return -EIO;
 		ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1);
 		break;
 	case V4L2_CID_GAIN:
-		ret = indycam_read_reg(client, INDYCAM_REG_GAIN, &reg);
+		ret = indycam_read_reg(sd, INDYCAM_REG_GAIN, &reg);
 		if (ret)
 			return -EIO;
 		ctrl->value = (s32)reg;
 		break;
 	case V4L2_CID_RED_BALANCE:
-		ret = indycam_read_reg(client, INDYCAM_REG_RED_BALANCE, &reg);
+		ret = indycam_read_reg(sd, INDYCAM_REG_RED_BALANCE, &reg);
 		if (ret)
 			return -EIO;
 		ctrl->value = (s32)reg;
 		break;
 	case V4L2_CID_BLUE_BALANCE:
-		ret = indycam_read_reg(client, INDYCAM_REG_BLUE_BALANCE, &reg);
+		ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_BALANCE, &reg);
 		if (ret)
 			return -EIO;
 		ctrl->value = (s32)reg;
 		break;
 	case INDYCAM_CONTROL_RED_SATURATION:
-		ret = indycam_read_reg(client,
+		ret = indycam_read_reg(sd,
 				       INDYCAM_REG_RED_SATURATION, &reg);
 		if (ret)
 			return -EIO;
 		ctrl->value = (s32)reg;
 		break;
 	case INDYCAM_CONTROL_BLUE_SATURATION:
-		ret = indycam_read_reg(client,
+		ret = indycam_read_reg(sd,
 				       INDYCAM_REG_BLUE_SATURATION, &reg);
 		if (ret)
 			return -EIO;
@@ -200,7 +206,7 @@ static int indycam_get_control(struct i2c_client *client,
 		break;
 	case V4L2_CID_GAMMA:
 		if (camera->version == CAMERA_VERSION_MOOSE) {
-			ret = indycam_read_reg(client,
+			ret = indycam_read_reg(sd,
 					       INDYCAM_REG_GAMMA, &reg);
 			if (ret)
 				return -EIO;
@@ -216,17 +222,16 @@ static int indycam_get_control(struct i2c_client *client,
 	return ret;
 }
 
-static int indycam_set_control(struct i2c_client *client,
-			       struct v4l2_control *ctrl)
+static int indycam_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 {
-	struct indycam *camera = i2c_get_clientdata(client);
+	struct indycam *camera = to_indycam(sd);
 	u8 reg;
 	int ret = 0;
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUTOGAIN:
 	case V4L2_CID_AUTO_WHITE_BALANCE:
-		ret = indycam_read_reg(client, INDYCAM_REG_CONTROL, &reg);
+		ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, &reg);
 		if (ret)
 			break;
 
@@ -242,34 +247,34 @@ static int indycam_set_control(struct i2c_client *client,
 				reg &= ~INDYCAM_CONTROL_AWBCTL;
 		}
 
-		ret = indycam_write_reg(client, INDYCAM_REG_CONTROL, reg);
+		ret = indycam_write_reg(sd, INDYCAM_REG_CONTROL, reg);
 		break;
 	case V4L2_CID_EXPOSURE:
 		reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1);
-		ret = indycam_write_reg(client, INDYCAM_REG_SHUTTER, reg);
+		ret = indycam_write_reg(sd, INDYCAM_REG_SHUTTER, reg);
 		break;
 	case V4L2_CID_GAIN:
-		ret = indycam_write_reg(client, INDYCAM_REG_GAIN, ctrl->value);
+		ret = indycam_write_reg(sd, INDYCAM_REG_GAIN, ctrl->value);
 		break;
 	case V4L2_CID_RED_BALANCE:
-		ret = indycam_write_reg(client, INDYCAM_REG_RED_BALANCE,
+		ret = indycam_write_reg(sd, INDYCAM_REG_RED_BALANCE,
 					ctrl->value);
 		break;
 	case V4L2_CID_BLUE_BALANCE:
-		ret = indycam_write_reg(client, INDYCAM_REG_BLUE_BALANCE,
+		ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_BALANCE,
 					ctrl->value);
 		break;
 	case INDYCAM_CONTROL_RED_SATURATION:
-		ret = indycam_write_reg(client, INDYCAM_REG_RED_SATURATION,
+		ret = indycam_write_reg(sd, INDYCAM_REG_RED_SATURATION,
 					ctrl->value);
 		break;
 	case INDYCAM_CONTROL_BLUE_SATURATION:
-		ret = indycam_write_reg(client, INDYCAM_REG_BLUE_SATURATION,
+		ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_SATURATION,
 					ctrl->value);
 		break;
 	case V4L2_CID_GAMMA:
 		if (camera->version == CAMERA_VERSION_MOOSE) {
-			ret = indycam_write_reg(client, INDYCAM_REG_GAMMA,
+			ret = indycam_write_reg(sd, INDYCAM_REG_GAMMA,
 						ctrl->value);
 		}
 		break;
@@ -282,30 +287,39 @@ static int indycam_set_control(struct i2c_client *client,
 
 /* I2C-interface */
 
-static int indycam_command(struct i2c_client *client, unsigned int cmd,
-			   void *arg)
+static int indycam_g_chip_ident(struct v4l2_subdev *sd,
+		struct v4l2_dbg_chip_ident *chip)
 {
-	/* The old video_decoder interface just isn't enough,
-	 * so we'll use some custom commands. */
-	switch (cmd) {
-	case VIDIOC_G_CTRL:
-		return indycam_get_control(client, arg);
-
-	case VIDIOC_S_CTRL:
-		return indycam_set_control(client, arg);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct indycam *camera = to_indycam(sd);
 
-	default:
-		return -EINVAL;
-	}
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_INDYCAM,
+		       camera->version);
+}
 
-	return 0;
+static int indycam_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
 }
 
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops indycam_core_ops = {
+	.g_chip_ident = indycam_g_chip_ident,
+	.g_ctrl = indycam_g_ctrl,
+	.s_ctrl = indycam_s_ctrl,
+};
+
+static const struct v4l2_subdev_ops indycam_ops = {
+	.core = &indycam_core_ops,
+};
+
 static int indycam_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
 	int err = 0;
 	struct indycam *camera;
+	struct v4l2_subdev *sd;
 
 	v4l_info(client, "chip found @ 0x%x (%s)\n",
 			client->addr << 1, client->adapter->name);
@@ -314,9 +328,8 @@ static int indycam_probe(struct i2c_client *client,
 	if (!camera)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, camera);
-
-	camera->client = client;
+	sd = &camera->sd;
+	v4l2_i2c_subdev_init(sd, client, &indycam_ops);
 
 	camera->version = i2c_smbus_read_byte_data(client,
 						   INDYCAM_REG_VERSION);
@@ -330,20 +343,20 @@ static int indycam_probe(struct i2c_client *client,
 	       INDYCAM_VERSION_MAJOR(camera->version),
 	       INDYCAM_VERSION_MINOR(camera->version));
 
-	indycam_regdump(client);
+	indycam_regdump(sd);
 
 	// initialize
-	err = indycam_write_block(client, 0, sizeof(initseq), (u8 *)&initseq);
+	err = indycam_write_block(sd, 0, sizeof(initseq), (u8 *)&initseq);
 	if (err) {
 		printk(KERN_ERR "IndyCam initialization failed\n");
 		kfree(camera);
 		return -EIO;
 	}
 
-	indycam_regdump(client);
+	indycam_regdump(sd);
 
 	// white balance
-	err = indycam_write_reg(client, INDYCAM_REG_CONTROL,
+	err = indycam_write_reg(sd, INDYCAM_REG_CONTROL,
 			  INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL);
 	if (err) {
 		printk(KERN_ERR "IndyCam: White balancing camera failed\n");
@@ -351,7 +364,7 @@ static int indycam_probe(struct i2c_client *client,
 		return -EIO;
 	}
 
-	indycam_regdump(client);
+	indycam_regdump(sd);
 
 	printk(KERN_INFO "IndyCam initialized\n");
 
@@ -360,9 +373,10 @@ static int indycam_probe(struct i2c_client *client,
 
 static int indycam_remove(struct i2c_client *client)
 {
-	struct indycam *camera = i2c_get_clientdata(client);
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
 
-	kfree(camera);
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_indycam(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index 70117e748f20..f02517bdf534 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -70,6 +70,9 @@ enum {
 	V4L2_IDENT_CX23416 = 416,
 	V4L2_IDENT_CX23418 = 418,
 
+	/* module indycam: just ident 2000 */
+	V4L2_IDENT_INDYCAM = 2000,
+
 	/* module bt819: reserved range 810-819 */
 	V4L2_IDENT_BT815A = 815,
 	V4L2_IDENT_BT817A = 817,
-- 
cgit v1.2.3


From 8340ff43c49fe8e0cd049b65fbd2156bd651697e Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 13 Feb 2009 19:58:12 -0300
Subject: V4L/DVB (10863): saa7191: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/saa7191.c   | 240 +++++++++++++++++++++-------------------
 include/media/v4l2-chip-ident.h |   3 +
 2 files changed, 129 insertions(+), 114 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/saa7191.c b/drivers/media/video/saa7191.c
index 4c7bddf4b7ee..40ae2787326f 100644
--- a/drivers/media/video/saa7191.c
+++ b/drivers/media/video/saa7191.c
@@ -21,7 +21,8 @@
 
 #include <linux/videodev2.h>
 #include <linux/i2c.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
 #include "saa7191.h"
@@ -49,7 +50,7 @@ I2C_CLIENT_INSMOD;
 #define SAA7191_SYNC_DELAY	100	/* milliseconds */
 
 struct saa7191 {
-	struct i2c_client *client;
+	struct v4l2_subdev sd;
 
 	/* the register values are stored here as the actual
 	 * I2C-registers are write-only */
@@ -59,6 +60,11 @@ struct saa7191 {
 	v4l2_std_id norm;
 };
 
+static inline struct saa7191 *to_saa7191(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct saa7191, sd);
+}
+
 static const u8 initseq[] = {
 	0,	/* Subaddress */
 
@@ -103,15 +109,14 @@ static const u8 initseq[] = {
 
 /* SAA7191 register handling */
 
-static u8 saa7191_read_reg(struct i2c_client *client,
-			   u8 reg)
+static u8 saa7191_read_reg(struct v4l2_subdev *sd, u8 reg)
 {
-	return ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg];
+	return to_saa7191(sd)->reg[reg];
 }
 
-static int saa7191_read_status(struct i2c_client *client,
-			       u8 *value)
+static int saa7191_read_status(struct v4l2_subdev *sd, u8 *value)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	int ret;
 
 	ret = i2c_master_recv(client, value, 1);
@@ -124,21 +129,23 @@ static int saa7191_read_status(struct i2c_client *client,
 }
 
 
-static int saa7191_write_reg(struct i2c_client *client, u8 reg,
-			     u8 value)
+static int saa7191_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
 {
-	((struct saa7191 *)i2c_get_clientdata(client))->reg[reg] = value;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	to_saa7191(sd)->reg[reg] = value;
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
 /* the first byte of data must be the first subaddress number (register) */
-static int saa7191_write_block(struct i2c_client *client,
+static int saa7191_write_block(struct v4l2_subdev *sd,
 			       u8 length, const u8 *data)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct saa7191 *decoder = to_saa7191(sd);
 	int i;
 	int ret;
 
-	struct saa7191 *decoder = (struct saa7191 *)i2c_get_clientdata(client);
 	for (i = 0; i < (length - 1); i++) {
 		decoder->reg[data[0] + i] = data[i + 1];
 	}
@@ -155,14 +162,15 @@ static int saa7191_write_block(struct i2c_client *client,
 
 /* Helper functions */
 
-static int saa7191_set_input(struct i2c_client *client, int input)
+static int saa7191_s_routing(struct v4l2_subdev *sd,
+				const struct v4l2_routing *route)
 {
-	struct saa7191 *decoder = i2c_get_clientdata(client);
-	u8 luma = saa7191_read_reg(client, SAA7191_REG_LUMA);
-	u8 iock = saa7191_read_reg(client, SAA7191_REG_IOCK);
+	struct saa7191 *decoder = to_saa7191(sd);
+	u8 luma = saa7191_read_reg(sd, SAA7191_REG_LUMA);
+	u8 iock = saa7191_read_reg(sd, SAA7191_REG_IOCK);
 	int err;
 
-	switch (input) {
+	switch (route->input) {
 	case SAA7191_INPUT_COMPOSITE: /* Set Composite input */
 		iock &= ~(SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW1
 			  | SAA7191_IOCK_GPSW2);
@@ -178,24 +186,24 @@ static int saa7191_set_input(struct i2c_client *client, int input)
 		return -EINVAL;
 	}
 
-	err = saa7191_write_reg(client, SAA7191_REG_LUMA, luma);
+	err = saa7191_write_reg(sd, SAA7191_REG_LUMA, luma);
 	if (err)
 		return -EIO;
-	err = saa7191_write_reg(client, SAA7191_REG_IOCK, iock);
+	err = saa7191_write_reg(sd, SAA7191_REG_IOCK, iock);
 	if (err)
 		return -EIO;
 
-	decoder->input = input;
+	decoder->input = route->input;
 
 	return 0;
 }
 
-static int saa7191_set_norm(struct i2c_client *client, v4l2_std_id norm)
+static int saa7191_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
 {
-	struct saa7191 *decoder = i2c_get_clientdata(client);
-	u8 stdc = saa7191_read_reg(client, SAA7191_REG_STDC);
-	u8 ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3);
-	u8 chcv = saa7191_read_reg(client, SAA7191_REG_CHCV);
+	struct saa7191 *decoder = to_saa7191(sd);
+	u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC);
+	u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+	u8 chcv = saa7191_read_reg(sd, SAA7191_REG_CHCV);
 	int err;
 
 	if (norm & V4L2_STD_PAL) {
@@ -215,13 +223,13 @@ static int saa7191_set_norm(struct i2c_client *client, v4l2_std_id norm)
 		return -EINVAL;
 	}
 
-	err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3);
+	err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
 	if (err)
 		return -EIO;
-	err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc);
+	err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc);
 	if (err)
 		return -EIO;
-	err = saa7191_write_reg(client, SAA7191_REG_CHCV, chcv);
+	err = saa7191_write_reg(sd, SAA7191_REG_CHCV, chcv);
 	if (err)
 		return -EIO;
 
@@ -234,14 +242,14 @@ static int saa7191_set_norm(struct i2c_client *client, v4l2_std_id norm)
 	return 0;
 }
 
-static int saa7191_wait_for_signal(struct i2c_client *client, u8 *status)
+static int saa7191_wait_for_signal(struct v4l2_subdev *sd, u8 *status)
 {
 	int i = 0;
 
 	dprintk("Checking for signal...\n");
 
 	for (i = 0; i < SAA7191_SYNC_COUNT; i++) {
-		if (saa7191_read_status(client, status))
+		if (saa7191_read_status(sd, status))
 			return -EIO;
 
 		if (((*status) & SAA7191_STATUS_HLCK) == 0) {
@@ -257,12 +265,11 @@ static int saa7191_wait_for_signal(struct i2c_client *client, u8 *status)
 	return -EBUSY;
 }
 
-static int saa7191_autodetect_norm_extended(struct i2c_client *client,
-		v4l2_std_id *norm)
+static int saa7191_querystd(struct v4l2_subdev *sd, v4l2_std_id *norm)
 {
-	struct saa7191 *decoder = i2c_get_clientdata(client);
-	u8 stdc = saa7191_read_reg(client, SAA7191_REG_STDC);
-	u8 ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3);
+	struct saa7191 *decoder = to_saa7191(sd);
+	u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC);
+	u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3);
 	u8 status;
 	v4l2_std_id old_norm = decoder->norm;
 	int err = 0;
@@ -273,19 +280,19 @@ static int saa7191_autodetect_norm_extended(struct i2c_client *client,
 	stdc &= ~SAA7191_STDC_SECS;
 	ctl3 &= ~(SAA7191_CTL3_FSEL);
 
-	err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc);
+	err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc);
 	if (err) {
 		err = -EIO;
 		goto out;
 	}
-	err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3);
+	err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
 	if (err) {
 		err = -EIO;
 		goto out;
 	}
 
 	ctl3 |= SAA7191_CTL3_AUFD;
-	err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3);
+	err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
 	if (err) {
 		err = -EIO;
 		goto out;
@@ -293,7 +300,7 @@ static int saa7191_autodetect_norm_extended(struct i2c_client *client,
 
 	msleep(SAA7191_SYNC_DELAY);
 
-	err = saa7191_wait_for_signal(client, &status);
+	err = saa7191_wait_for_signal(sd, &status);
 	if (err)
 		goto out;
 
@@ -308,39 +315,39 @@ static int saa7191_autodetect_norm_extended(struct i2c_client *client,
 	dprintk("50Hz signal: Trying PAL...\n");
 
 	/* try PAL first */
-	err = saa7191_set_norm(client, V4L2_STD_PAL);
+	err = saa7191_s_std(sd, V4L2_STD_PAL);
 	if (err)
 		goto out;
 
 	msleep(SAA7191_SYNC_DELAY);
 
-	err = saa7191_wait_for_signal(client, &status);
+	err = saa7191_wait_for_signal(sd, &status);
 	if (err)
 		goto out;
 
 	/* not 50Hz ? */
 	if (status & SAA7191_STATUS_FIDT) {
 		dprintk("No 50Hz signal\n");
-		saa7191_set_norm(client, old_norm);
+		saa7191_s_std(sd, old_norm);
 		return -EAGAIN;
 	}
 
 	if (status & SAA7191_STATUS_CODE) {
 		dprintk("PAL\n");
 		*norm = V4L2_STD_PAL;
-		return saa7191_set_norm(client, old_norm);
+		return saa7191_s_std(sd, old_norm);
 	}
 
 	dprintk("No color detected with PAL - Trying SECAM...\n");
 
 	/* no color detected ? -> try SECAM */
-	err = saa7191_set_norm(client, V4L2_STD_SECAM);
+	err = saa7191_s_std(sd, V4L2_STD_SECAM);
 	if (err)
 		goto out;
 
 	msleep(SAA7191_SYNC_DELAY);
 
-	err = saa7191_wait_for_signal(client, &status);
+	err = saa7191_wait_for_signal(sd, &status);
 	if (err)
 		goto out;
 
@@ -355,16 +362,16 @@ static int saa7191_autodetect_norm_extended(struct i2c_client *client,
 		/* Color detected -> SECAM */
 		dprintk("SECAM\n");
 		*norm = V4L2_STD_SECAM;
-		return saa7191_set_norm(client, old_norm);
+		return saa7191_s_std(sd, old_norm);
 	}
 
 	dprintk("No color detected with SECAM - Going back to PAL.\n");
 
 out:
-	return saa7191_set_norm(client, old_norm);
+	return saa7191_s_std(sd, old_norm);
 }
 
-static int saa7191_autodetect_norm(struct i2c_client *client)
+static int saa7191_autodetect_norm(struct v4l2_subdev *sd)
 {
 	u8 status;
 
@@ -372,7 +379,7 @@ static int saa7191_autodetect_norm(struct i2c_client *client)
 
 	dprintk("Reading status...\n");
 
-	if (saa7191_read_status(client, &status))
+	if (saa7191_read_status(sd, &status))
 		return -EIO;
 
 	dprintk("Checking for signal...\n");
@@ -388,16 +395,15 @@ static int saa7191_autodetect_norm(struct i2c_client *client)
 	if (status & SAA7191_STATUS_FIDT) {
 		/* 60hz signal -> NTSC */
 		dprintk("NTSC\n");
-		return saa7191_set_norm(client, V4L2_STD_NTSC);
+		return saa7191_s_std(sd, V4L2_STD_NTSC);
 	} else {
 		/* 50hz signal -> PAL */
 		dprintk("PAL\n");
-		return saa7191_set_norm(client, V4L2_STD_PAL);
+		return saa7191_s_std(sd, V4L2_STD_PAL);
 	}
 }
 
-static int saa7191_get_control(struct i2c_client *client,
-			       struct v4l2_control *ctrl)
+static int saa7191_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 {
 	u8 reg;
 	int ret = 0;
@@ -406,7 +412,7 @@ static int saa7191_get_control(struct i2c_client *client,
 	case SAA7191_CONTROL_BANDPASS:
 	case SAA7191_CONTROL_BANDPASS_WEIGHT:
 	case SAA7191_CONTROL_CORING:
-		reg = saa7191_read_reg(client, SAA7191_REG_LUMA);
+		reg = saa7191_read_reg(sd, SAA7191_REG_LUMA);
 		switch (ctrl->id) {
 		case SAA7191_CONTROL_BANDPASS:
 			ctrl->value = ((s32)reg & SAA7191_LUMA_BPSS_MASK)
@@ -424,7 +430,7 @@ static int saa7191_get_control(struct i2c_client *client,
 		break;
 	case SAA7191_CONTROL_FORCE_COLOUR:
 	case SAA7191_CONTROL_CHROMA_GAIN:
-		reg = saa7191_read_reg(client, SAA7191_REG_GAIN);
+		reg = saa7191_read_reg(sd, SAA7191_REG_GAIN);
 		if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR)
 			ctrl->value = ((s32)reg & SAA7191_GAIN_COLO) ? 1 : 0;
 		else
@@ -432,7 +438,7 @@ static int saa7191_get_control(struct i2c_client *client,
 				>> SAA7191_GAIN_LFIS_SHIFT;
 		break;
 	case V4L2_CID_HUE:
-		reg = saa7191_read_reg(client, SAA7191_REG_HUEC);
+		reg = saa7191_read_reg(sd, SAA7191_REG_HUEC);
 		if (reg < 0x80)
 			reg += 0x80;
 		else
@@ -440,18 +446,18 @@ static int saa7191_get_control(struct i2c_client *client,
 		ctrl->value = (s32)reg;
 		break;
 	case SAA7191_CONTROL_VTRC:
-		reg = saa7191_read_reg(client, SAA7191_REG_STDC);
+		reg = saa7191_read_reg(sd, SAA7191_REG_STDC);
 		ctrl->value = ((s32)reg & SAA7191_STDC_VTRC) ? 1 : 0;
 		break;
 	case SAA7191_CONTROL_LUMA_DELAY:
-		reg = saa7191_read_reg(client, SAA7191_REG_CTL3);
+		reg = saa7191_read_reg(sd, SAA7191_REG_CTL3);
 		ctrl->value = ((s32)reg & SAA7191_CTL3_YDEL_MASK)
 			>> SAA7191_CTL3_YDEL_SHIFT;
 		if (ctrl->value >= 4)
 			ctrl->value -= 8;
 		break;
 	case SAA7191_CONTROL_VNR:
-		reg = saa7191_read_reg(client, SAA7191_REG_CTL4);
+		reg = saa7191_read_reg(sd, SAA7191_REG_CTL4);
 		ctrl->value = ((s32)reg & SAA7191_CTL4_VNOI_MASK)
 			>> SAA7191_CTL4_VNOI_SHIFT;
 		break;
@@ -462,8 +468,7 @@ static int saa7191_get_control(struct i2c_client *client,
 	return ret;
 }
 
-static int saa7191_set_control(struct i2c_client *client,
-			       struct v4l2_control *ctrl)
+static int saa7191_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 {
 	u8 reg;
 	int ret = 0;
@@ -472,7 +477,7 @@ static int saa7191_set_control(struct i2c_client *client,
 	case SAA7191_CONTROL_BANDPASS:
 	case SAA7191_CONTROL_BANDPASS_WEIGHT:
 	case SAA7191_CONTROL_CORING:
-		reg = saa7191_read_reg(client, SAA7191_REG_LUMA);
+		reg = saa7191_read_reg(sd, SAA7191_REG_LUMA);
 		switch (ctrl->id) {
 		case SAA7191_CONTROL_BANDPASS:
 			reg &= ~SAA7191_LUMA_BPSS_MASK;
@@ -490,11 +495,11 @@ static int saa7191_set_control(struct i2c_client *client,
 				& SAA7191_LUMA_CORI_MASK;
 			break;
 		}
-		ret = saa7191_write_reg(client, SAA7191_REG_LUMA, reg);
+		ret = saa7191_write_reg(sd, SAA7191_REG_LUMA, reg);
 		break;
 	case SAA7191_CONTROL_FORCE_COLOUR:
 	case SAA7191_CONTROL_CHROMA_GAIN:
-		reg = saa7191_read_reg(client, SAA7191_REG_GAIN);
+		reg = saa7191_read_reg(sd, SAA7191_REG_GAIN);
 		if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR) {
 			if (ctrl->value)
 				reg |= SAA7191_GAIN_COLO;
@@ -505,7 +510,7 @@ static int saa7191_set_control(struct i2c_client *client,
 			reg |= (ctrl->value << SAA7191_GAIN_LFIS_SHIFT)
 				& SAA7191_GAIN_LFIS_MASK;
 		}
-		ret = saa7191_write_reg(client, SAA7191_REG_GAIN, reg);
+		ret = saa7191_write_reg(sd, SAA7191_REG_GAIN, reg);
 		break;
 	case V4L2_CID_HUE:
 		reg = ctrl->value & 0xff;
@@ -513,33 +518,33 @@ static int saa7191_set_control(struct i2c_client *client,
 			reg += 0x80;
 		else
 			reg -= 0x80;
-		ret = saa7191_write_reg(client, SAA7191_REG_HUEC, reg);
+		ret = saa7191_write_reg(sd, SAA7191_REG_HUEC, reg);
 		break;
 	case SAA7191_CONTROL_VTRC:
-		reg = saa7191_read_reg(client, SAA7191_REG_STDC);
+		reg = saa7191_read_reg(sd, SAA7191_REG_STDC);
 		if (ctrl->value)
 			reg |= SAA7191_STDC_VTRC;
 		else
 			reg &= ~SAA7191_STDC_VTRC;
-		ret = saa7191_write_reg(client, SAA7191_REG_STDC, reg);
+		ret = saa7191_write_reg(sd, SAA7191_REG_STDC, reg);
 		break;
 	case SAA7191_CONTROL_LUMA_DELAY: {
 		s32 value = ctrl->value;
 		if (value < 0)
 			value += 8;
-		reg = saa7191_read_reg(client, SAA7191_REG_CTL3);
+		reg = saa7191_read_reg(sd, SAA7191_REG_CTL3);
 		reg &= ~SAA7191_CTL3_YDEL_MASK;
 		reg |= (value << SAA7191_CTL3_YDEL_SHIFT)
 			& SAA7191_CTL3_YDEL_MASK;
-		ret = saa7191_write_reg(client, SAA7191_REG_CTL3, reg);
+		ret = saa7191_write_reg(sd, SAA7191_REG_CTL3, reg);
 		break;
 	}
 	case SAA7191_CONTROL_VNR:
-		reg = saa7191_read_reg(client, SAA7191_REG_CTL4);
+		reg = saa7191_read_reg(sd, SAA7191_REG_CTL4);
 		reg &= ~SAA7191_CTL4_VNOI_MASK;
 		reg |= (ctrl->value << SAA7191_CTL4_VNOI_SHIFT)
 			& SAA7191_CTL4_VNOI_MASK;
-		ret = saa7191_write_reg(client, SAA7191_REG_CTL4, reg);
+		ret = saa7191_write_reg(sd, SAA7191_REG_CTL4, reg);
 		break;
 	default:
 		ret = -EINVAL;
@@ -550,57 +555,64 @@ static int saa7191_set_control(struct i2c_client *client,
 
 /* I2C-interface */
 
-static int saa7191_command(struct i2c_client *client, unsigned int cmd,
-			   void *arg)
+static int saa7191_g_input_status(struct v4l2_subdev *sd, u32 *status)
 {
-	switch (cmd) {
-	case VIDIOC_INT_G_INPUT_STATUS: {
-		u32 *iarg = arg;
-		u8 status;
-		int res = V4L2_IN_ST_NO_SIGNAL;
+	u8 status_reg;
+	int res = V4L2_IN_ST_NO_SIGNAL;
 
-		if (saa7191_read_status(client, &status))
-			return -EIO;
-		if ((status & SAA7191_STATUS_HLCK) == 0)
-			res = 0;
-		if (!(status & SAA7191_STATUS_CODE))
-			res |= V4L2_IN_ST_NO_COLOR;
-		*iarg = res;
-		break;
-	}
+	if (saa7191_read_status(sd, &status_reg))
+		return -EIO;
+	if ((status_reg & SAA7191_STATUS_HLCK) == 0)
+		res = 0;
+	if (!(status_reg & SAA7191_STATUS_CODE))
+		res |= V4L2_IN_ST_NO_COLOR;
+	*status = res;
+	return 0;
+}
 
-	case VIDIOC_QUERYSTD:
-		return saa7191_autodetect_norm_extended(client, arg);
 
-	case VIDIOC_S_STD: {
-		v4l2_std_id *istd = arg;
+static int saa7191_g_chip_ident(struct v4l2_subdev *sd,
+		struct v4l2_dbg_chip_ident *chip)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
-		return saa7191_set_norm(client, *istd);
-	}
-	case VIDIOC_INT_S_VIDEO_ROUTING: {
-		struct v4l2_routing *route = arg;
+	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7191, 0);
+}
 
-		return saa7191_set_input(client, route->input);
-	}
+static int saa7191_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
 
-	case VIDIOC_G_CTRL:
-		return saa7191_get_control(client, arg);
+/* ----------------------------------------------------------------------- */
 
-	case VIDIOC_S_CTRL:
-		return saa7191_set_control(client, arg);
+static const struct v4l2_subdev_core_ops saa7191_core_ops = {
+	.g_chip_ident = saa7191_g_chip_ident,
+	.g_ctrl = saa7191_g_ctrl,
+	.s_ctrl = saa7191_s_ctrl,
+};
 
-	default:
-		return -EINVAL;
-	}
+static const struct v4l2_subdev_tuner_ops saa7191_tuner_ops = {
+	.s_std = saa7191_s_std,
+};
 
-	return 0;
-}
+static const struct v4l2_subdev_video_ops saa7191_video_ops = {
+	.s_routing = saa7191_s_routing,
+	.querystd = saa7191_querystd,
+	.g_input_status = saa7191_g_input_status,
+};
+
+static const struct v4l2_subdev_ops saa7191_ops = {
+	.core = &saa7191_core_ops,
+	.video = &saa7191_video_ops,
+};
 
 static int saa7191_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
 	int err = 0;
 	struct saa7191 *decoder;
+	struct v4l2_subdev *sd;
 
 	v4l_info(client, "chip found @ 0x%x (%s)\n",
 			client->addr << 1, client->adapter->name);
@@ -609,11 +621,10 @@ static int saa7191_probe(struct i2c_client *client,
 	if (!decoder)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, decoder);
-
-	decoder->client = client;
+	sd = &decoder->sd;
+	v4l2_i2c_subdev_init(sd, client, &saa7191_ops);
 
-	err = saa7191_write_block(client, sizeof(initseq), initseq);
+	err = saa7191_write_block(sd, sizeof(initseq), initseq);
 	if (err) {
 		printk(KERN_ERR "SAA7191 initialization failed\n");
 		kfree(decoder);
@@ -625,7 +636,7 @@ static int saa7191_probe(struct i2c_client *client,
 	decoder->input = SAA7191_INPUT_COMPOSITE;
 	decoder->norm = V4L2_STD_PAL;
 
-	err = saa7191_autodetect_norm(client);
+	err = saa7191_autodetect_norm(sd);
 	if (err && (err != -EBUSY))
 		printk(KERN_ERR "SAA7191: Signal auto-detection failed\n");
 
@@ -634,9 +645,10 @@ static int saa7191_probe(struct i2c_client *client,
 
 static int saa7191_remove(struct i2c_client *client)
 {
-	struct saa7191 *decoder = i2c_get_clientdata(client);
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
 
-	kfree(decoder);
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_saa7191(sd));
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index f02517bdf534..43684f105fd8 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -131,6 +131,9 @@ enum {
 	/* module saa7185: just ident 7185 */
 	V4L2_IDENT_SAA7185 = 7185,
 
+	/* module saa7191: just ident 7191 */
+	V4L2_IDENT_SAA7191 = 7191,
+
 	/* module wm8739: just ident 8739 */
 	V4L2_IDENT_WM8739 = 8739,
 
-- 
cgit v1.2.3


From 42d12f5aa105af08bc0ed0580e32156a1a325c6b Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Tue, 10 Mar 2009 05:02:28 -0300
Subject: V4L/DVB (10870a): remove all references for video_decoder.h

changeset 04934e44e3784a1b969582e2d59afcec278470c6 removed the last implementation
that were still using the V4L1 obsoleted header.
Now, video_decoder.h is not used anymore by any driver.

Let's remove it and all references for it in Kernel.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 Documentation/feature-removal-schedule.txt |  8 ++---
 Documentation/ioctl/ioctl-number.txt       |  1 -
 drivers/media/video/mxb.c                  |  1 -
 include/linux/Kbuild                       |  1 -
 include/linux/video_decoder.h              | 48 ------------------------------
 5 files changed, 4 insertions(+), 55 deletions(-)
 delete mode 100644 include/linux/video_decoder.h

(limited to 'include')

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 1135996bec8b..5e02b83ac12b 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -64,10 +64,10 @@ Who:	Pavel Machek <pavel@suse.cz>
 
 ---------------------------
 
-What:	Video4Linux API 1 ioctls and video_decoder.h from Video devices.
-When:	December 2008
-Files:	include/linux/video_decoder.h include/linux/videodev.h
-Check:	include/linux/video_decoder.h include/linux/videodev.h
+What:	Video4Linux API 1 ioctls and from Video devices.
+When:	July 2009
+Files:	include/linux/videodev.h
+Check:	include/linux/videodev.h
 Why:	V4L1 AP1 was replaced by V4L2 API during migration from 2.4 to 2.6
 	series. The old API have lots of drawbacks and don't provide enough
 	means to work with all video and audio standards. The newer API is
diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt
index 3a311fe952ed..1f779a25c703 100644
--- a/Documentation/ioctl/ioctl-number.txt
+++ b/Documentation/ioctl/ioctl-number.txt
@@ -122,7 +122,6 @@ Code	Seq#	Include File		Comments
 'c'	00-7F	linux/coda.h		conflict!
 'c'	80-9F	arch/s390/include/asm/chsc.h
 'd'	00-FF	linux/char/drm/drm/h	conflict!
-'d'	00-DF	linux/video_decoder.h	conflict!
 'd'	F0-FF	linux/digi1.h
 'e'	all	linux/digi1.h		conflict!
 'e'	00-1F	net/irda/irtty.h	conflict!
diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index 996011f2aba5..84aec62e8452 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -25,7 +25,6 @@
 
 #include <media/saa7146_vv.h>
 #include <media/tuner.h>
-#include <linux/video_decoder.h>
 #include <media/v4l2-common.h>
 #include <media/saa7115.h>
 
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index da7ff0ba3860..a67b6227d272 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -158,7 +158,6 @@ header-y += ultrasound.h
 header-y += un.h
 header-y += utime.h
 header-y += veth.h
-header-y += video_decoder.h
 header-y += videotext.h
 header-y += x25.h
 
diff --git a/include/linux/video_decoder.h b/include/linux/video_decoder.h
deleted file mode 100644
index e26c0c86a6ea..000000000000
--- a/include/linux/video_decoder.h
+++ /dev/null
@@ -1,48 +0,0 @@
-#ifndef _LINUX_VIDEO_DECODER_H
-#define _LINUX_VIDEO_DECODER_H
-
-#include <linux/types.h>
-
-#define HAVE_VIDEO_DECODER 1
-
-struct video_decoder_capability { /* this name is too long */
-	__u32	flags;
-#define	VIDEO_DECODER_PAL	1	/* can decode PAL signal */
-#define	VIDEO_DECODER_NTSC	2	/* can decode NTSC */
-#define	VIDEO_DECODER_SECAM	4	/* can decode SECAM */
-#define	VIDEO_DECODER_AUTO	8	/* can autosense norm */
-#define	VIDEO_DECODER_CCIR	16	/* CCIR-601 pixel rate (720 pixels per line) instead of square pixel rate */
-	int	inputs;			/* number of inputs */
-	int	outputs;		/* number of outputs */
-};
-
-/*
-DECODER_GET_STATUS returns the following flags.  The only one you need is
-DECODER_STATUS_GOOD, the others are just nice things to know.
-*/
-#define	DECODER_STATUS_GOOD	1	/* receiving acceptable input */
-#define	DECODER_STATUS_COLOR	2	/* receiving color information */
-#define	DECODER_STATUS_PAL	4	/* auto detected */
-#define	DECODER_STATUS_NTSC	8	/* auto detected */
-#define	DECODER_STATUS_SECAM	16	/* auto detected */
-
-struct video_decoder_init {
-	unsigned char len;
-	const unsigned char *data;
-};
-
-#define	DECODER_GET_CAPABILITIES _IOR('d', 1, struct video_decoder_capability)
-#define	DECODER_GET_STATUS    	_IOR('d', 2, int)
-#define	DECODER_SET_NORM	_IOW('d', 3, int)
-#define	DECODER_SET_INPUT	_IOW('d', 4, int)	/* 0 <= input < #inputs */
-#define	DECODER_SET_OUTPUT	_IOW('d', 5, int)	/* 0 <= output < #outputs */
-#define	DECODER_ENABLE_OUTPUT	_IOW('d', 6, int)	/* boolean output enable control */
-#define	DECODER_SET_PICTURE   	_IOW('d', 7, struct video_picture)
-#define	DECODER_SET_GPIO	_IOW('d', 8, int)	/* switch general purpose pin */
-#define	DECODER_INIT		_IOW('d', 9, struct video_decoder_init)	/* init internal registers at once */
-#define	DECODER_SET_VBI_BYPASS	_IOW('d', 10, int)	/* switch vbi bypass */
-
-#define	DECODER_DUMP		_IO('d', 192)		/* debug hook */
-
-
-#endif
-- 
cgit v1.2.3


From 7e0a16f6118a297dd467c1e5a0908429fcdf56af Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Tue, 10 Mar 2009 05:31:34 -0300
Subject: V4L/DVB (10907): avoid loading the entire videodev.h header on V4L2
 drivers

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/bt8xx/bttv.h            |  2 +-
 drivers/media/video/bt8xx/bttvp.h           |  1 -
 drivers/media/video/cpia2/cpia2_v4l.c       |  1 +
 drivers/media/video/cx23885/cx23885-video.c |  5 -----
 drivers/media/video/cx88/cx88-video.c       |  5 -----
 drivers/media/video/msp3400-driver.c        |  2 +-
 drivers/media/video/ov7670.c                |  2 +-
 drivers/media/video/saa7134/saa7134-video.c |  5 -----
 drivers/media/video/saa7146.h               |  2 --
 drivers/media/video/v4l2-ioctl.c            |  1 +
 drivers/media/video/vivi.c                  |  4 ----
 drivers/media/video/w9966.c                 |  2 +-
 drivers/media/video/w9968cf.c               |  1 +
 drivers/media/video/zoran/zoran_driver.c    |  2 +-
 include/linux/videodev.h                    | 18 ++++++++++++++++++
 include/media/v4l2-ioctl.h                  |  1 +
 16 files changed, 27 insertions(+), 27 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/bt8xx/bttv.h b/drivers/media/video/bt8xx/bttv.h
index 737a464606a9..e08719b378bd 100644
--- a/drivers/media/video/bt8xx/bttv.h
+++ b/drivers/media/video/bt8xx/bttv.h
@@ -14,7 +14,7 @@
 #ifndef _BTTV_H_
 #define _BTTV_H_
 
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
 #include <linux/i2c.h>
 #include <media/ir-common.h>
 #include <media/ir-kbd-i2c.h>
diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h
index b8274d233fd0..2c0a2cc61d03 100644
--- a/drivers/media/video/bt8xx/bttvp.h
+++ b/drivers/media/video/bt8xx/bttvp.h
@@ -32,7 +32,6 @@
 #include <linux/wait.h>
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
-#include <linux/videodev.h>
 #include <linux/pci.h>
 #include <linux/input.h>
 #include <linux/mutex.h>
diff --git a/drivers/media/video/cpia2/cpia2_v4l.c b/drivers/media/video/cpia2/cpia2_v4l.c
index 9c25894fdd8e..d4099f5312ac 100644
--- a/drivers/media/video/cpia2/cpia2_v4l.c
+++ b/drivers/media/video/cpia2/cpia2_v4l.c
@@ -37,6 +37,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+#include <linux/videodev.h>
 #include <media/v4l2-ioctl.h>
 
 #include "cpia2.h"
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c
index c2ed2505b725..726602935353 100644
--- a/drivers/media/video/cx23885/cx23885-video.c
+++ b/drivers/media/video/cx23885/cx23885-video.c
@@ -35,11 +35,6 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
-/* Include V4L1 specific functions. Should be removed soon */
-#include <linux/videodev.h>
-#endif
-
 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
 MODULE_LICENSE("GPL");
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index 2092e439ef00..5b0fbc602f3e 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -41,11 +41,6 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
-/* Include V4L1 specific functions. Should be removed soon */
-#include <linux/videodev.h>
-#endif
-
 MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
 MODULE_LICENSE("GPL");
diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c
index d972828d1cbe..bca768a1f34c 100644
--- a/drivers/media/video/msp3400-driver.c
+++ b/drivers/media/video/msp3400-driver.c
@@ -53,7 +53,7 @@
 #include <linux/i2c.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
-#include <linux/videodev2.h>
+#include <linux/videodev.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-i2c-drv-legacy.h>
diff --git a/drivers/media/video/ov7670.c b/drivers/media/video/ov7670.c
index 05c14a29375a..003120c07482 100644
--- a/drivers/media/video/ov7670.c
+++ b/drivers/media/video/ov7670.c
@@ -14,7 +14,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-chip-ident.h>
 #include <linux/i2c.h>
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index aa7fa1f73a56..6a4ae89a81a9 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -31,11 +31,6 @@
 #include "saa7134.h"
 #include <media/v4l2-common.h>
 
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
-/* Include V4L1 specific functions. Should be removed soon */
-#include <linux/videodev.h>
-#endif
-
 /* ------------------------------------------------------------------ */
 
 unsigned int video_debug;
diff --git a/drivers/media/video/saa7146.h b/drivers/media/video/saa7146.h
index 2830b5e33aec..9fadb331a40b 100644
--- a/drivers/media/video/saa7146.h
+++ b/drivers/media/video/saa7146.h
@@ -25,8 +25,6 @@
 #include <linux/types.h>
 #include <linux/wait.h>
 
-#include <linux/videodev.h>
-
 #ifndef O_NONCAP
 #define O_NONCAP	O_TRUNC
 #endif
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 6a7955547474..583f9c158e63 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 
 #define __OLD_VIDIOC_ /* To allow fixing old calls */
+#include <linux/videodev.h>
 #include <linux/videodev2.h>
 
 #ifdef CONFIG_VIDEO_V4L1
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 616eb1a8dbee..980620f411f0 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -28,10 +28,6 @@
 #include <linux/mutex.h>
 #include <linux/videodev2.h>
 #include <linux/dma-mapping.h>
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
-/* Include V4L1 specific functions. Should be removed soon */
-#include <linux/videodev.h>
-#endif
 #include <linux/interrupt.h>
 #include <linux/kthread.h>
 #include <linux/highmem.h>
diff --git a/drivers/media/video/w9966.c b/drivers/media/video/w9966.c
index 038ff32b01b8..dcade619cbd8 100644
--- a/drivers/media/video/w9966.c
+++ b/drivers/media/video/w9966.c
@@ -57,7 +57,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/videodev2.h>
+#include <linux/videodev.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <linux/parport.h>
diff --git a/drivers/media/video/w9968cf.c b/drivers/media/video/w9968cf.c
index fd5c4c87a73b..2a25580a4b66 100644
--- a/drivers/media/video/w9968cf.c
+++ b/drivers/media/video/w9968cf.c
@@ -42,6 +42,7 @@
 #include <asm/page.h>
 #include <asm/uaccess.h>
 #include <linux/page-flags.h>
+#include <linux/videodev.h>
 #include <media/v4l2-ioctl.h>
 
 #include "w9968cf.h"
diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c
index 2dd8d90aedf9..b7f03d163730 100644
--- a/drivers/media/video/zoran/zoran_driver.c
+++ b/drivers/media/video/zoran/zoran_driver.c
@@ -59,7 +59,7 @@
 
 #include <linux/spinlock.h>
 
-#include <linux/videodev2.h>
+#include <linux/videodev.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include "videocodec.h"
diff --git a/include/linux/videodev.h b/include/linux/videodev.h
index 837f392fbe97..b19eab140977 100644
--- a/include/linux/videodev.h
+++ b/include/linux/videodev.h
@@ -16,6 +16,23 @@
 #include <linux/ioctl.h>
 #include <linux/videodev2.h>
 
+#if defined(__MIN_V4L1) && defined (__KERNEL__)
+
+/*
+ * Used by those V4L2 core functions that need a minimum V4L1 support,
+ * in order to allow V4L1 Compatibilty code compilation.
+ */
+
+struct video_mbuf
+{
+	int	size;		/* Total memory to map */
+	int	frames;		/* Frames */
+	int	offsets[VIDEO_MAX_FRAME];
+};
+
+#define VIDIOCGMBUF		_IOR('v',20, struct video_mbuf)		/* Memory map buffer info */
+
+#else
 #if defined(CONFIG_VIDEO_V4L1_COMPAT) || !defined (__KERNEL__)
 
 #define VID_TYPE_CAPTURE	1	/* Can capture */
@@ -312,6 +329,7 @@ struct video_code
 #define VID_PLAY_END_MARK		14
 
 #endif /* CONFIG_VIDEO_V4L1_COMPAT */
+#endif /* __MIN_V4L1 */
 
 #endif /* __LINUX_VIDEODEV_H */
 
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index a8b4c0b678ec..7a4529defa88 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -15,6 +15,7 @@
 #include <linux/mutex.h>
 #include <linux/compiler.h> /* need __user */
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
+#define __MIN_V4L1
 #include <linux/videodev.h>
 #else
 #include <linux/videodev2.h>
-- 
cgit v1.2.3


From fbc9fa4e8781170e2fbca2859feda114d4758132 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 6 Mar 2009 09:55:42 -0300
Subject: V4L/DVB (10910): videodev2.h: remove deprecated
 VIDIOC_G_CHIP_IDENT_OLD

As announced VIDIOC_G_CHIP_IDENT_OLD is now removed for 2.6.30.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/v4l2-compat-ioctl32.c |  1 -
 drivers/media/video/v4l2-ioctl.c          |  5 -----
 include/linux/videodev2.h                 | 10 ----------
 3 files changed, 16 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
index 110376be5d2b..0056b115b42e 100644
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -1047,7 +1047,6 @@ long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
 	case VIDIOC_DBG_S_REGISTER:
 	case VIDIOC_DBG_G_REGISTER:
 	case VIDIOC_DBG_G_CHIP_IDENT:
-	case VIDIOC_G_CHIP_IDENT_OLD:
 	case VIDIOC_S_HW_FREQ_SEEK:
 		ret = do_video_ioctl(file, cmd, arg);
 		break;
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 583f9c158e63..df8d1ff1a577 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -1692,11 +1692,6 @@ static long __video_do_ioctl(struct file *file,
 			dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision);
 		break;
 	}
-	case VIDIOC_G_CHIP_IDENT_OLD:
-		printk(KERN_ERR "VIDIOC_G_CHIP_IDENT has been deprecated and will disappear in 2.6.30.\n");
-		printk(KERN_ERR "It is a debugging ioctl and must not be used in applications!\n");
-		return -EINVAL;
-
 	case VIDIOC_S_HW_FREQ_SEEK:
 	{
 		struct v4l2_hw_freq_seek *p = arg;
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 11b8b3ec77b4..78ba0755ffb3 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -1412,14 +1412,6 @@ struct v4l2_dbg_chip_ident {
 	__u32 revision;    /* chip revision, chip specific */
 } __attribute__ ((packed));
 
-/* VIDIOC_G_CHIP_IDENT_OLD: Deprecated, do not use */
-struct v4l2_chip_ident_old {
-	__u32 match_type;  /* Match type */
-	__u32 match_chip;  /* Match this chip, meaning determined by match_type */
-	__u32 ident;       /* chip identifier as specified in <media/v4l2-chip-ident.h> */
-	__u32 revision;    /* chip revision, chip specific */
-};
-
 /*
  *	I O C T L   C O D E S   F O R   V I D E O   D E V I C E S
  *
@@ -1497,8 +1489,6 @@ struct v4l2_chip_ident_old {
 /* Experimental, meant for debugging, testing and internal use.
    Never use this ioctl in applications! */
 #define VIDIOC_DBG_G_CHIP_IDENT _IOWR('V', 81, struct v4l2_dbg_chip_ident)
-/* This is deprecated and will go away in 2.6.30 */
-#define VIDIOC_G_CHIP_IDENT_OLD _IOWR('V', 81, struct v4l2_chip_ident_old)
 #endif
 
 #define VIDIOC_S_HW_FREQ_SEEK	 _IOW('V', 82, struct v4l2_hw_freq_seek)
-- 
cgit v1.2.3


From c1089bdc07f06b90f0bc50d0789c2a4833097df7 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Sat, 7 Mar 2009 07:43:43 -0300
Subject: V4L/DVB (10939): ir-kbd-i2c: Prevent general protection fault on
 rmmod

The removal of the timer which polls the infrared input is racy.
Replacing the timer with a delayed work solves the problem.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/ir-kbd-i2c.c | 20 +++++---------------
 include/media/ir-kbd-i2c.h       |  3 +--
 2 files changed, 6 insertions(+), 17 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
index 2ee49b7ddcf0..092c7da0f37a 100644
--- a/drivers/media/video/ir-kbd-i2c.c
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -279,15 +279,9 @@ static void ir_key_poll(struct IR_i2c *ir)
 	}
 }
 
-static void ir_timer(unsigned long data)
-{
-	struct IR_i2c *ir = (struct IR_i2c*)data;
-	schedule_work(&ir->work);
-}
-
 static void ir_work(struct work_struct *work)
 {
-	struct IR_i2c *ir = container_of(work, struct IR_i2c, work);
+	struct IR_i2c *ir = container_of(work, struct IR_i2c, work.work);
 	int polling_interval = 100;
 
 	/* MSI TV@nywhere Plus requires more frequent polling
@@ -296,7 +290,7 @@ static void ir_work(struct work_struct *work)
 		polling_interval = 50;
 
 	ir_key_poll(ir);
-	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(polling_interval));
+	schedule_delayed_work(&ir->work, msecs_to_jiffies(polling_interval));
 }
 
 /* ----------------------------------------------------------------------- */
@@ -452,11 +446,8 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
 	       ir->input->name, ir->input->phys, adap->name);
 
 	/* start polling via eventd */
-	INIT_WORK(&ir->work, ir_work);
-	init_timer(&ir->timer);
-	ir->timer.function = ir_timer;
-	ir->timer.data     = (unsigned long)ir;
-	schedule_work(&ir->work);
+	INIT_DELAYED_WORK(&ir->work, ir_work);
+	schedule_delayed_work(&ir->work, 0);
 
 	return 0;
 
@@ -473,8 +464,7 @@ static int ir_detach(struct i2c_client *client)
 	struct IR_i2c *ir = i2c_get_clientdata(client);
 
 	/* kill outstanding polls */
-	del_timer_sync(&ir->timer);
-	flush_scheduled_work();
+	cancel_delayed_work_sync(&ir->work);
 
 	/* unregister devices */
 	input_unregister_device(ir->input);
diff --git a/include/media/ir-kbd-i2c.h b/include/media/ir-kbd-i2c.h
index 00fa57eb9fde..07963d705400 100644
--- a/include/media/ir-kbd-i2c.h
+++ b/include/media/ir-kbd-i2c.h
@@ -14,8 +14,7 @@ struct IR_i2c {
 	/* Used to avoid fast repeating */
 	unsigned char          old;
 
-	struct work_struct     work;
-	struct timer_list      timer;
+	struct delayed_work    work;
 	char                   phys[32];
 	int                    (*get_key)(struct IR_i2c*, u32*, u32*);
 };
-- 
cgit v1.2.3


From 5e585ef15b3633e1b0c022aa14bc88587827acd3 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Tue, 10 Mar 2009 18:30:27 -0300
Subject: V4L/DVB (10908): videobuf-core: also needs a minimal subset of V4L1
 header

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/media/videobuf-core.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h
index 874f1340d049..1c5946c44758 100644
--- a/include/media/videobuf-core.h
+++ b/include/media/videobuf-core.h
@@ -18,6 +18,7 @@
 
 #include <linux/poll.h>
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
+#define __MIN_V4L1
 #include <linux/videodev.h>
 #endif
 #include <linux/videodev2.h>
-- 
cgit v1.2.3


From 98ec633972a70cf71d71bc8762804f0af4792d08 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sun, 8 Mar 2009 17:02:10 -0300
Subject: V4L/DVB (11021): v4l2-device: add a notify callback.

Add a notify callback to v4l2_device to let sub-devices notify their
parent of special events.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 Documentation/video4linux/v4l2-framework.txt | 10 ++++++++++
 include/media/v4l2-device.h                  |  3 +++
 include/media/v4l2-subdev.h                  |  5 +++++
 3 files changed, 18 insertions(+)

(limited to 'include')

diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt
index df0247ed13d8..4207590b2ac8 100644
--- a/Documentation/video4linux/v4l2-framework.txt
+++ b/Documentation/video4linux/v4l2-framework.txt
@@ -94,6 +94,11 @@ usb_device or platform_device. It is rare for dev to be NULL, but it happens
 with ISA devices or when one device creates multiple PCI devices, thus making
 it impossible to associate v4l2_dev with a particular parent.
 
+You can also supply a notify() callback that can be called by sub-devices to
+notify you of events. Whether you need to set this depends on the sub-device.
+Any notifications a sub-device supports must be defined in a header in
+include/media/<subdevice>.h.
+
 You unregister with:
 
 	v4l2_device_unregister(struct v4l2_device *v4l2_dev);
@@ -281,6 +286,11 @@ e.g. AUDIO_CONTROLLER and specify that as the group ID value when calling
 v4l2_device_call_all(). That ensures that it will only go to the subdev
 that needs it.
 
+If the sub-device needs to notify its v4l2_device parent of an event, then
+it can call v4l2_subdev_notify(sd, notification, arg). This macro checks
+whether there is a notify() callback defined and returns -ENODEV if not.
+Otherwise the result of the notify() call is returned.
+
 The advantage of using v4l2_subdev is that it is a generic struct and does
 not contain any knowledge about the underlying hardware. So a driver might
 contain several subdevs that use an I2C bus, but also a subdev that is
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 5d7146dc2913..3d8e96f6ceb3 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -44,6 +44,9 @@ struct v4l2_device {
 	spinlock_t lock;
 	/* unique device name, by default the driver name + bus ID */
 	char name[V4L2_DEVICE_NAME_SIZE];
+	/* notify callback called by some sub-devices. */
+	void (*notify)(struct v4l2_subdev *sd,
+			unsigned int notification, void *arg);
 };
 
 /* Initialize v4l2_dev and make dev->driver_data point to v4l2_dev.
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 05b69652e6c4..1b97a2c33a73 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -191,4 +191,9 @@ static inline void v4l2_subdev_init(struct v4l2_subdev *sd,
 	(!(sd) ? -ENODEV : (((sd) && (sd)->ops->o && (sd)->ops->o->f) ?	\
 		(sd)->ops->o->f((sd) , ##args) : -ENOIOCTLCMD))
 
+/* Send a notification to v4l2_device. */
+#define v4l2_subdev_notify(sd, notification, arg)			   \
+	((!(sd) || !(sd)->v4l2_dev || !(sd)->v4l2_dev->notify) ? -ENODEV : \
+	 (sd)->v4l2_dev->notify((sd), (notification), (arg)))
+
 #endif
-- 
cgit v1.2.3


From 1cd3c0fa927084549005fc22e54d99684b314f14 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sun, 8 Mar 2009 17:04:38 -0300
Subject: V4L/DVB (11022): zoran/bt819: use new notify functionality.

Bt819 needs the parent driver to drive a GPIO pin low and high in order to
reset its fifo. Use the new notify callback for this.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/bt819.c              | 14 ++++++++++++-
 drivers/media/video/zoran/zoran_card.c   | 20 +++++++++++++++---
 drivers/media/video/zoran/zoran_device.c | 36 ++------------------------------
 drivers/media/video/zoran/zoran_device.h |  3 ---
 drivers/media/video/zoran/zoran_driver.c | 12 +++++------
 include/media/bt819.h                    | 33 +++++++++++++++++++++++++++++
 6 files changed, 71 insertions(+), 47 deletions(-)
 create mode 100644 include/media/bt819.h

(limited to 'include')

diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c
index e0d8e2b186d1..217294d56414 100644
--- a/drivers/media/video/bt819.c
+++ b/drivers/media/video/bt819.c
@@ -32,13 +32,14 @@
 #include <linux/types.h>
 #include <linux/ioctl.h>
 #include <linux/delay.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv.h>
+#include <media/bt819.h>
 
 MODULE_DESCRIPTION("Brooktree-819 video decoder driver");
 MODULE_AUTHOR("Mike Bernson & Dave Perks");
@@ -250,7 +251,11 @@ static int bt819_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 
 	v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);
 
+	if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL)
+		v4l2_err(sd, "no notify found!\n");
+
 	if (std & V4L2_STD_NTSC) {
+		v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, 0);
 		bt819_setbit(decoder, 0x01, 0, 1);
 		bt819_setbit(decoder, 0x01, 1, 0);
 		bt819_setbit(decoder, 0x01, 5, 0);
@@ -259,6 +264,7 @@ static int bt819_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 		/* bt819_setbit(decoder, 0x1a,  5, 1); */
 		timing = &timing_data[1];
 	} else if (std & V4L2_STD_PAL) {
+		v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, 0);
 		bt819_setbit(decoder, 0x01, 0, 1);
 		bt819_setbit(decoder, 0x01, 1, 1);
 		bt819_setbit(decoder, 0x01, 5, 1);
@@ -283,6 +289,7 @@ static int bt819_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 	bt819_write(decoder, 0x08, (timing->hscale >> 8) & 0xff);
 	bt819_write(decoder, 0x09, timing->hscale & 0xff);
 	decoder->norm = std;
+	v4l2_subdev_notify(sd, BT819_FIFO_RESET_HIGH, 0);
 	return 0;
 }
 
@@ -295,7 +302,11 @@ static int bt819_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *ro
 	if (route->input < 0 || route->input > 7)
 		return -EINVAL;
 
+	if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL)
+		v4l2_err(sd, "no notify found!\n");
+
 	if (decoder->input != route->input) {
+		v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, 0);
 		decoder->input = route->input;
 		/* select mode */
 		if (decoder->input == 0) {
@@ -305,6 +316,7 @@ static int bt819_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *ro
 			bt819_setbit(decoder, 0x0b, 6, 1);
 			bt819_setbit(decoder, 0x1a, 1, 0);
 		}
+		v4l2_subdev_notify(sd, BT819_FIFO_RESET_HIGH, 0);
 	}
 	return 0;
 }
diff --git a/drivers/media/video/zoran/zoran_card.c b/drivers/media/video/zoran/zoran_card.c
index b5d228d91b06..ec9b6ef56090 100644
--- a/drivers/media/video/zoran/zoran_card.c
+++ b/drivers/media/video/zoran/zoran_card.c
@@ -39,7 +39,6 @@
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
 #include <linux/spinlock.h>
 #include <linux/sem.h>
 #include <linux/kmod.h>
@@ -48,8 +47,9 @@
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
-
-#include <asm/io.h>
+#include <linux/io.h>
+#include <media/v4l2-common.h>
+#include <media/bt819.h>
 
 #include "videocodec.h"
 #include "zoran.h"
@@ -1196,6 +1196,19 @@ zoran_setup_videocodec (struct zoran *zr,
 	return m;
 }
 
+static int zoran_subdev_notify(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
+{
+	struct zoran *zr = to_zoran(sd->v4l2_dev);
+
+	/* Bt819 needs to reset its FIFO buffer using #FRST pin and
+	   LML33 card uses GPIO(7) for that. */
+	if (cmd == BT819_FIFO_RESET_LOW)
+		GPIO(zr, 7, 0);
+	else if (cmd == BT819_FIFO_RESET_HIGH)
+		GPIO(zr, 7, 1);
+	return 0;
+}
+
 /*
  *   Scan for a Buz card (actually for the PCI controller ZR36057),
  *   request the irq and map the io memory
@@ -1226,6 +1239,7 @@ static int __devinit zoran_probe(struct pci_dev *pdev,
 			ZORAN_NAME, __func__);
 		return -ENOMEM;
 	}
+	zr->v4l2_dev.notify = zoran_subdev_notify;
 	if (v4l2_device_register(&pdev->dev, &zr->v4l2_dev))
 		goto zr_free_mem;
 	zr->pci_dev = pdev;
diff --git a/drivers/media/video/zoran/zoran_device.c b/drivers/media/video/zoran/zoran_device.c
index f8bcd1a248c2..e0223deed35e 100644
--- a/drivers/media/video/zoran/zoran_device.c
+++ b/drivers/media/video/zoran/zoran_device.c
@@ -1584,8 +1584,8 @@ zoran_init_hardware (struct zoran *zr)
 	route.input = zr->card.input[zr->input].muxsel;
 
 	decoder_call(zr, core, init, 0);
-	decoder_s_std(zr, zr->norm);
-	decoder_s_routing(zr, &route);
+	decoder_call(zr, tuner, s_std, zr->norm);
+	decoder_call(zr, video, s_routing, &route);
 
 	encoder_call(zr, core, init, 0);
 	encoder_call(zr, video, s_std_output, zr->norm);
@@ -1650,35 +1650,3 @@ zr36057_init_vfe (struct zoran *zr)
 		reg |= ZR36057_VDCR_Triton;
 	btwrite(reg, ZR36057_VDCR);
 }
-
-/*
- * Interface to decoder and encoder chips using i2c bus
- */
-
-int decoder_s_std(struct zoran *zr, v4l2_std_id std)
-{
-	int res;
-
-	/* Bt819 needs to reset its FIFO buffer using #FRST pin and
-	   LML33 card uses GPIO(7) for that. */
-	if (zr->card.type == LML33)
-		GPIO(zr, 7, 0);
-	res = decoder_call(zr, tuner, s_std, std);
-	if (zr->card.type == LML33)
-		GPIO(zr, 7, 1); /* Pull #FRST high. */
-	return res;
-}
-
-int decoder_s_routing(struct zoran *zr, struct v4l2_routing *route)
-{
-	int res;
-
-	/* Bt819 needs to reset its FIFO buffer using #FRST pin and
-	   LML33 card uses GPIO(7) for that. */
-	if (zr->card.type == LML33)
-		GPIO(zr, 7, 0);
-	res = decoder_call(zr, video, s_routing, route);
-	if (zr->card.type == LML33)
-		GPIO(zr, 7, 1); /* Pull #FRST high. */
-	return res;
-}
diff --git a/drivers/media/video/zoran/zoran_device.h b/drivers/media/video/zoran/zoran_device.h
index 85414e17524e..07f2c23ff740 100644
--- a/drivers/media/video/zoran/zoran_device.h
+++ b/drivers/media/video/zoran/zoran_device.h
@@ -92,7 +92,4 @@ extern int pass_through;
 #define encoder_call(zr, o, f, args...) \
 	v4l2_subdev_call(zr->encoder, o, f, ##args)
 
-int decoder_s_std(struct zoran *zr, v4l2_std_id std);
-int decoder_s_routing(struct zoran *zr, struct v4l2_routing *route);
-
 #endif				/* __ZORAN_DEVICE_H__ */
diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c
index 60501f256b28..1e87fb9f7146 100644
--- a/drivers/media/video/zoran/zoran_driver.c
+++ b/drivers/media/video/zoran/zoran_driver.c
@@ -1449,7 +1449,7 @@ zoran_set_norm (struct zoran *zr,
 		v4l2_std_id std = 0;
 
 		decoder_call(zr, video, querystd, &std);
-		decoder_s_std(zr, std);
+		decoder_call(zr, tuner, s_std, std);
 
 		/* let changes come into effect */
 		ssleep(2);
@@ -1461,7 +1461,7 @@ zoran_set_norm (struct zoran *zr,
 				"%s: %s - no norm detected\n",
 				ZR_DEVNAME(zr), __func__);
 			/* reset norm */
-			decoder_s_std(zr, zr->norm);
+			decoder_call(zr, tuner, s_std, zr->norm);
 			return -EIO;
 		}
 
@@ -1480,7 +1480,7 @@ zoran_set_norm (struct zoran *zr,
 	if (on)
 		zr36057_overlay(zr, 0);
 
-	decoder_s_std(zr, norm);
+	decoder_call(zr, tuner, s_std, norm);
 	encoder_call(zr, video, s_std_output, norm);
 
 	if (on)
@@ -1522,7 +1522,7 @@ zoran_set_input (struct zoran *zr,
 	route.input = zr->card.input[input].muxsel;
 	zr->input = input;
 
-	decoder_s_routing(zr, &route);
+	decoder_call(zr, video, s_routing, &route);
 
 	return 0;
 }
@@ -1775,7 +1775,7 @@ jpgreqbuf_unlock_and_return:
 			goto gstat_unlock_and_return;
 		}
 
-		decoder_s_routing(zr, &route);
+		decoder_call(zr, video, s_routing, &route);
 
 		/* sleep 1 second */
 		ssleep(1);
@@ -1786,7 +1786,7 @@ jpgreqbuf_unlock_and_return:
 
 		/* restore previous input and norm */
 		route.input = zr->card.input[zr->input].muxsel;
-		decoder_s_routing(zr, &route);
+		decoder_call(zr, video, s_routing, &route);
 gstat_unlock_and_return:
 		mutex_unlock(&zr->resource_lock);
 
diff --git a/include/media/bt819.h b/include/media/bt819.h
new file mode 100644
index 000000000000..38f666bde77a
--- /dev/null
+++ b/include/media/bt819.h
@@ -0,0 +1,33 @@
+/*
+    bt819.h - bt819 notifications
+
+    Copyright (C) 2009 Hans Verkuil (hverkuil@xs4all.nl)
+
+    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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef _BT819_H_
+#define _BT819_H_
+
+#include <linux/ioctl.h>
+
+/* v4l2_device notifications. */
+
+/* Needed to reset the FIFO buffer when changing the input
+   or the video standard. */
+#define BT819_FIFO_RESET_LOW 	_IO('b', 0)
+#define BT819_FIFO_RESET_HIGH 	_IO('b', 1)
+
+#endif
-- 
cgit v1.2.3


From 09e231b35173313cd92e27532e5028f2042dcee4 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Fri, 13 Mar 2009 06:08:20 -0300
Subject: V4L/DVB (11024): soc-camera: separate S_FMT and S_CROP operations

As host and camera drivers become more complex, differences between S_FMT and
S_CROP functionality grow, this patch separates them.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/mt9m001.c              |  19 +++-
 drivers/media/video/mt9m111.c              |  56 ++++++----
 drivers/media/video/mt9t031.c              |  84 +++++++++------
 drivers/media/video/mt9v022.c              |  62 +++++++-----
 drivers/media/video/mx3_camera.c           | 157 ++++++++++++++++++-----------
 drivers/media/video/ov772x.c               |  31 +++++-
 drivers/media/video/pxa_camera.c           |  67 ++++++++----
 drivers/media/video/sh_mobile_ceu_camera.c |  17 +++-
 drivers/media/video/soc_camera.c           |  20 ++--
 drivers/media/video/soc_camera_platform.c  |   9 +-
 drivers/media/video/tw9910.c               |  45 ++++++---
 include/media/soc_camera.h                 |   6 +-
 12 files changed, 381 insertions(+), 192 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/mt9m001.c b/drivers/media/video/mt9m001.c
index 2d1034dad495..a6703d25227f 100644
--- a/drivers/media/video/mt9m001.c
+++ b/drivers/media/video/mt9m001.c
@@ -284,8 +284,8 @@ static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd)
 	return soc_camera_apply_sensor_flags(icl, flags);
 }
 
-static int mt9m001_set_fmt(struct soc_camera_device *icd,
-			   __u32 pixfmt, struct v4l2_rect *rect)
+static int mt9m001_set_crop(struct soc_camera_device *icd,
+			    struct v4l2_rect *rect)
 {
 	struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
 	int ret;
@@ -324,6 +324,20 @@ static int mt9m001_set_fmt(struct soc_camera_device *icd,
 	return ret;
 }
 
+static int mt9m001_set_fmt(struct soc_camera_device *icd,
+			   struct v4l2_format *f)
+{
+	struct v4l2_rect rect = {
+		.left	= icd->x_current,
+		.top	= icd->y_current,
+		.width	= f->fmt.pix.width,
+		.height	= f->fmt.pix.height,
+	};
+
+	/* No support for scaling so far, just crop. TODO: use skipping */
+	return mt9m001_set_crop(icd, &rect);
+}
+
 static int mt9m001_try_fmt(struct soc_camera_device *icd,
 			   struct v4l2_format *f)
 {
@@ -449,6 +463,7 @@ static struct soc_camera_ops mt9m001_ops = {
 	.release		= mt9m001_release,
 	.start_capture		= mt9m001_start_capture,
 	.stop_capture		= mt9m001_stop_capture,
+	.set_crop		= mt9m001_set_crop,
 	.set_fmt		= mt9m001_set_fmt,
 	.try_fmt		= mt9m001_try_fmt,
 	.set_bus_param		= mt9m001_set_bus_param,
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index 7e6be36f0855..cdd1ddb51388 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -152,7 +152,7 @@ struct mt9m111 {
 	struct soc_camera_device icd;
 	int model;	/* V4L2_IDENT_MT9M11x* codes from v4l2-chip-ident.h */
 	enum mt9m111_context context;
-	unsigned int left, top, width, height;
+	struct v4l2_rect rect;
 	u32 pixfmt;
 	unsigned char autoexposure;
 	unsigned char datawidth;
@@ -249,12 +249,13 @@ static int mt9m111_set_context(struct soc_camera_device *icd,
 		return reg_write(CONTEXT_CONTROL, valA);
 }
 
-static int mt9m111_setup_rect(struct soc_camera_device *icd)
+static int mt9m111_setup_rect(struct soc_camera_device *icd,
+			      struct v4l2_rect *rect)
 {
 	struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
 	int ret, is_raw_format;
-	int width = mt9m111->width;
-	int height = mt9m111->height;
+	int width = rect->width;
+	int height = rect->height;
 
 	if ((mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR8)
 	    || (mt9m111->pixfmt == V4L2_PIX_FMT_SBGGR16))
@@ -262,9 +263,9 @@ static int mt9m111_setup_rect(struct soc_camera_device *icd)
 	else
 		is_raw_format = 0;
 
-	ret = reg_write(COLUMN_START, mt9m111->left);
+	ret = reg_write(COLUMN_START, rect->left);
 	if (!ret)
-		ret = reg_write(ROW_START, mt9m111->top);
+		ret = reg_write(ROW_START, rect->top);
 
 	if (is_raw_format) {
 		if (!ret)
@@ -436,6 +437,22 @@ static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
 	return 0;
 }
 
+static int mt9m111_set_crop(struct soc_camera_device *icd,
+			    struct v4l2_rect *rect)
+{
+	struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+	int ret;
+
+	dev_dbg(&icd->dev, "%s left=%d, top=%d, width=%d, height=%d\n",
+		__func__, rect->left, rect->top, rect->width,
+		rect->height);
+
+	ret = mt9m111_setup_rect(icd, rect);
+	if (!ret)
+		mt9m111->rect = *rect;
+	return ret;
+}
+
 static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt)
 {
 	struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
@@ -486,23 +503,27 @@ static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt)
 }
 
 static int mt9m111_set_fmt(struct soc_camera_device *icd,
-			   __u32 pixfmt, struct v4l2_rect *rect)
+			   struct v4l2_format *f)
 {
 	struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_rect rect = {
+		.left	= mt9m111->rect.left,
+		.top	= mt9m111->rect.top,
+		.width	= pix->width,
+		.height	= pix->height,
+	};
 	int ret;
 
-	mt9m111->left = rect->left;
-	mt9m111->top = rect->top;
-	mt9m111->width = rect->width;
-	mt9m111->height = rect->height;
-
 	dev_dbg(&icd->dev, "%s fmt=%x left=%d, top=%d, width=%d, height=%d\n",
-		__func__, pixfmt, mt9m111->left, mt9m111->top, mt9m111->width,
-		mt9m111->height);
+		__func__, pix->pixelformat, rect.left, rect.top, rect.width,
+		rect.height);
 
-	ret = mt9m111_setup_rect(icd);
+	ret = mt9m111_setup_rect(icd, &rect);
+	if (!ret)
+		ret = mt9m111_set_pixfmt(icd, pix->pixelformat);
 	if (!ret)
-		ret = mt9m111_set_pixfmt(icd, pixfmt);
+		mt9m111->rect = rect;
 	return ret;
 }
 
@@ -633,6 +654,7 @@ static struct soc_camera_ops mt9m111_ops = {
 	.release		= mt9m111_release,
 	.start_capture		= mt9m111_start_capture,
 	.stop_capture		= mt9m111_stop_capture,
+	.set_crop		= mt9m111_set_crop,
 	.set_fmt		= mt9m111_set_fmt,
 	.try_fmt		= mt9m111_try_fmt,
 	.query_bus_param	= mt9m111_query_bus_param,
@@ -817,7 +839,7 @@ static int mt9m111_restore_state(struct soc_camera_device *icd)
 
 	mt9m111_set_context(icd, mt9m111->context);
 	mt9m111_set_pixfmt(icd, mt9m111->pixfmt);
-	mt9m111_setup_rect(icd);
+	mt9m111_setup_rect(icd, &mt9m111->rect);
 	mt9m111_set_flip(icd, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS);
 	mt9m111_set_flip(icd, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS);
 	mt9m111_set_global_gain(icd, icd->gain);
diff --git a/drivers/media/video/mt9t031.c b/drivers/media/video/mt9t031.c
index acc1fa9db67d..677be18df9b3 100644
--- a/drivers/media/video/mt9t031.c
+++ b/drivers/media/video/mt9t031.c
@@ -213,36 +213,14 @@ static void recalculate_limits(struct soc_camera_device *icd,
 	icd->height_max = MT9T031_MAX_HEIGHT / yskip;
 }
 
-static int mt9t031_set_fmt(struct soc_camera_device *icd,
-			   __u32 pixfmt, struct v4l2_rect *rect)
+static int mt9t031_set_params(struct soc_camera_device *icd,
+			      struct v4l2_rect *rect, u16 xskip, u16 yskip)
 {
 	struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
 	int ret;
+	u16 xbin, ybin, width, height, left, top;
 	const u16 hblank = MT9T031_HORIZONTAL_BLANK,
 		vblank = MT9T031_VERTICAL_BLANK;
-	u16 xbin, xskip, ybin, yskip, width, height, left, top;
-
-	if (pixfmt) {
-		/*
-		 * try_fmt has put rectangle within limits.
-		 * S_FMT - use binning and skipping for scaling, recalculate
-		 * limits, used for cropping
-		 */
-		/* Is this more optimal than just a division? */
-		for (xskip = 8; xskip > 1; xskip--)
-			if (rect->width * xskip <= MT9T031_MAX_WIDTH)
-				break;
-
-		for (yskip = 8; yskip > 1; yskip--)
-			if (rect->height * yskip <= MT9T031_MAX_HEIGHT)
-				break;
-
-		recalculate_limits(icd, xskip, yskip);
-	} else {
-		/* CROP - no change in scaling, or in limits */
-		xskip = mt9t031->xskip;
-		yskip = mt9t031->yskip;
-	}
 
 	/* Make sure we don't exceed sensor limits */
 	if (rect->left + rect->width > icd->width_max)
@@ -289,7 +267,7 @@ static int mt9t031_set_fmt(struct soc_camera_device *icd,
 	if (ret >= 0)
 		ret = reg_write(icd, MT9T031_VERTICAL_BLANKING, vblank);
 
-	if (pixfmt) {
+	if (yskip != mt9t031->yskip || xskip != mt9t031->xskip) {
 		/* Binning, skipping */
 		if (ret >= 0)
 			ret = reg_write(icd, MT9T031_COLUMN_ADDRESS_MODE,
@@ -325,15 +303,58 @@ static int mt9t031_set_fmt(struct soc_camera_device *icd,
 		}
 	}
 
-	if (!ret && pixfmt) {
+	/* Re-enable register update, commit all changes */
+	if (ret >= 0)
+		ret = reg_clear(icd, MT9T031_OUTPUT_CONTROL, 1);
+
+	return ret < 0 ? ret : 0;
+}
+
+static int mt9t031_set_crop(struct soc_camera_device *icd,
+			    struct v4l2_rect *rect)
+{
+	struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+
+	/* CROP - no change in scaling, or in limits */
+	return mt9t031_set_params(icd, rect, mt9t031->xskip, mt9t031->yskip);
+}
+
+static int mt9t031_set_fmt(struct soc_camera_device *icd,
+			   struct v4l2_format *f)
+{
+	struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+	int ret;
+	u16 xskip, yskip;
+	struct v4l2_rect rect = {
+		.left	= icd->x_current,
+		.top	= icd->y_current,
+		.width	= f->fmt.pix.width,
+		.height	= f->fmt.pix.height,
+	};
+
+	/*
+	 * try_fmt has put rectangle within limits.
+	 * S_FMT - use binning and skipping for scaling, recalculate
+	 * limits, used for cropping
+	 */
+	/* Is this more optimal than just a division? */
+	for (xskip = 8; xskip > 1; xskip--)
+		if (rect.width * xskip <= MT9T031_MAX_WIDTH)
+			break;
+
+	for (yskip = 8; yskip > 1; yskip--)
+		if (rect.height * yskip <= MT9T031_MAX_HEIGHT)
+			break;
+
+	recalculate_limits(icd, xskip, yskip);
+
+	ret = mt9t031_set_params(icd, &rect, xskip, yskip);
+	if (!ret) {
 		mt9t031->xskip = xskip;
 		mt9t031->yskip = yskip;
 	}
 
-	/* Re-enable register update, commit all changes */
-	reg_clear(icd, MT9T031_OUTPUT_CONTROL, 1);
-
-	return ret < 0 ? ret : 0;
+	return ret;
 }
 
 static int mt9t031_try_fmt(struct soc_camera_device *icd,
@@ -470,6 +491,7 @@ static struct soc_camera_ops mt9t031_ops = {
 	.release		= mt9t031_release,
 	.start_capture		= mt9t031_start_capture,
 	.stop_capture		= mt9t031_stop_capture,
+	.set_crop		= mt9t031_set_crop,
 	.set_fmt		= mt9t031_set_fmt,
 	.try_fmt		= mt9t031_try_fmt,
 	.set_bus_param		= mt9t031_set_bus_param,
diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
index 6eb4b3a818d7..3871d4a2d8ff 100644
--- a/drivers/media/video/mt9v022.c
+++ b/drivers/media/video/mt9v022.c
@@ -340,32 +340,11 @@ static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd)
 		width_flag;
 }
 
-static int mt9v022_set_fmt(struct soc_camera_device *icd,
-			   __u32 pixfmt, struct v4l2_rect *rect)
+static int mt9v022_set_crop(struct soc_camera_device *icd,
+			    struct v4l2_rect *rect)
 {
-	struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
 	int ret;
 
-	/* The caller provides a supported format, as verified per call to
-	 * icd->try_fmt(), datawidth is from our supported format list */
-	switch (pixfmt) {
-	case V4L2_PIX_FMT_GREY:
-	case V4L2_PIX_FMT_Y16:
-		if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATM)
-			return -EINVAL;
-		break;
-	case V4L2_PIX_FMT_SBGGR8:
-	case V4L2_PIX_FMT_SBGGR16:
-		if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATC)
-			return -EINVAL;
-		break;
-	case 0:
-		/* No format change, only geometry */
-		break;
-	default:
-		return -EINVAL;
-	}
-
 	/* Like in example app. Contradicts the datasheet though */
 	ret = reg_read(icd, MT9V022_AEC_AGC_ENABLE);
 	if (ret >= 0) {
@@ -403,6 +382,42 @@ static int mt9v022_set_fmt(struct soc_camera_device *icd,
 	return 0;
 }
 
+static int mt9v022_set_fmt(struct soc_camera_device *icd,
+			   struct v4l2_format *f)
+{
+	struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_rect rect = {
+		.left	= icd->x_current,
+		.top	= icd->y_current,
+		.width	= pix->width,
+		.height	= pix->height,
+	};
+
+	/* The caller provides a supported format, as verified per call to
+	 * icd->try_fmt(), datawidth is from our supported format list */
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_GREY:
+	case V4L2_PIX_FMT_Y16:
+		if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATM)
+			return -EINVAL;
+		break;
+	case V4L2_PIX_FMT_SBGGR8:
+	case V4L2_PIX_FMT_SBGGR16:
+		if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATC)
+			return -EINVAL;
+		break;
+	case 0:
+		/* No format change, only geometry */
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* No support for scaling on this camera, just crop. */
+	return mt9v022_set_crop(icd, &rect);
+}
+
 static int mt9v022_try_fmt(struct soc_camera_device *icd,
 			   struct v4l2_format *f)
 {
@@ -544,6 +559,7 @@ static struct soc_camera_ops mt9v022_ops = {
 	.release		= mt9v022_release,
 	.start_capture		= mt9v022_start_capture,
 	.stop_capture		= mt9v022_stop_capture,
+	.set_crop		= mt9v022_set_crop,
 	.set_fmt		= mt9v022_set_fmt,
 	.try_fmt		= mt9v022_try_fmt,
 	.set_bus_param		= mt9v022_set_bus_param,
diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index f525dc48f6ca..70629e172e65 100644
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -544,16 +544,14 @@ static void mx3_camera_remove_device(struct soc_camera_device *icd)
 }
 
 static bool channel_change_requested(struct soc_camera_device *icd,
-				     const struct soc_camera_format_xlate *xlate,
-				     __u32 pixfmt, struct v4l2_rect *rect)
+				     struct v4l2_rect *rect)
 {
 	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 	struct mx3_camera_dev *mx3_cam = ici->priv;
 	struct idmac_channel *ichan = mx3_cam->idmac_channel[0];
 
-	/* So far only one configuration is supported */
-	return pixfmt || (ichan && rect->width * rect->height >
-			  icd->width * icd->height);
+	/* Do buffers have to be re-allocated or channel re-configured? */
+	return ichan && rect->width * rect->height > icd->width * icd->height;
 }
 
 static int test_platform_param(struct mx3_camera_dev *mx3_cam,
@@ -733,61 +731,10 @@ passthrough:
 	return formats;
 }
 
-static int mx3_camera_set_fmt(struct soc_camera_device *icd,
-			      __u32 pixfmt, struct v4l2_rect *rect)
+static void configure_geometry(struct mx3_camera_dev *mx3_cam,
+			       struct v4l2_rect *rect)
 {
-	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
-	struct mx3_camera_dev *mx3_cam = ici->priv;
-	const struct soc_camera_format_xlate *xlate;
 	u32 ctrl, width_field, height_field;
-	int ret;
-
-	xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
-	if (pixfmt && !xlate) {
-		dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
-		return -EINVAL;
-	}
-
-	/*
-	 * We now know pixel formats and can decide upon DMA-channel(s)
-	 * So far only direct camera-to-memory is supported
-	 */
-	if (channel_change_requested(icd, xlate, pixfmt, rect)) {
-		dma_cap_mask_t mask;
-		struct dma_chan *chan;
-		struct idmac_channel **ichan = &mx3_cam->idmac_channel[0];
-		/* We have to use IDMAC_IC_7 for Bayer / generic data */
-		struct dma_chan_request rq = {.mx3_cam = mx3_cam,
-					      .id = IDMAC_IC_7};
-
-		if (*ichan) {
-			struct videobuf_buffer *vb, *_vb;
-			dma_release_channel(&(*ichan)->dma_chan);
-			*ichan = NULL;
-			mx3_cam->active = NULL;
-			list_for_each_entry_safe(vb, _vb, &mx3_cam->capture, queue) {
-				list_del_init(&vb->queue);
-				vb->state = VIDEOBUF_ERROR;
-				wake_up(&vb->done);
-			}
-		}
-
-		dma_cap_zero(mask);
-		dma_cap_set(DMA_SLAVE, mask);
-		dma_cap_set(DMA_PRIVATE, mask);
-		chan = dma_request_channel(mask, chan_filter, &rq);
-		if (!chan)
-			return -EBUSY;
-
-		*ichan = to_idmac_chan(chan);
-		(*ichan)->client = mx3_cam;
-	}
-
-	/*
-	 * Might have to perform a complete interface initialisation like in
-	 * ipu_csi_init_interface() in mxc_v4l2_s_param(). Also consider
-	 * mxc_v4l2_s_fmt()
-	 */
 
 	/* Setup frame size - this cannot be changed on-the-fly... */
 	width_field = rect->width - 1;
@@ -808,9 +755,98 @@ static int mx3_camera_set_fmt(struct soc_camera_device *icd,
 	 * No need to free resources here if we fail, we'll see if we need to
 	 * do this next time we are called
 	 */
+}
+
+static int acquire_dma_channel(struct mx3_camera_dev *mx3_cam)
+{
+	dma_cap_mask_t mask;
+	struct dma_chan *chan;
+	struct idmac_channel **ichan = &mx3_cam->idmac_channel[0];
+	/* We have to use IDMAC_IC_7 for Bayer / generic data */
+	struct dma_chan_request rq = {.mx3_cam = mx3_cam,
+				      .id = IDMAC_IC_7};
+
+	if (*ichan) {
+		struct videobuf_buffer *vb, *_vb;
+		dma_release_channel(&(*ichan)->dma_chan);
+		*ichan = NULL;
+		mx3_cam->active = NULL;
+		list_for_each_entry_safe(vb, _vb, &mx3_cam->capture, queue) {
+			list_del_init(&vb->queue);
+			vb->state = VIDEOBUF_ERROR;
+			wake_up(&vb->done);
+		}
+	}
+
+	dma_cap_zero(mask);
+	dma_cap_set(DMA_SLAVE, mask);
+	dma_cap_set(DMA_PRIVATE, mask);
+	chan = dma_request_channel(mask, chan_filter, &rq);
+	if (!chan)
+		return -EBUSY;
+
+	*ichan = to_idmac_chan(chan);
+	(*ichan)->client = mx3_cam;
+
+	return 0;
+}
+
+static int mx3_camera_set_crop(struct soc_camera_device *icd,
+			       struct v4l2_rect *rect)
+{
+	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+	struct mx3_camera_dev *mx3_cam = ici->priv;
+
+	/*
+	 * We now know pixel formats and can decide upon DMA-channel(s)
+	 * So far only direct camera-to-memory is supported
+	 */
+	if (channel_change_requested(icd, rect)) {
+		int ret = acquire_dma_channel(mx3_cam);
+		if (ret < 0)
+			return ret;
+	}
+
+	configure_geometry(mx3_cam, rect);
+
+	return icd->ops->set_crop(icd, rect);
+}
+
+static int mx3_camera_set_fmt(struct soc_camera_device *icd,
+			      struct v4l2_format *f)
+{
+	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+	struct mx3_camera_dev *mx3_cam = ici->priv;
+	const struct soc_camera_format_xlate *xlate;
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_rect rect = {
+		.left	= icd->x_current,
+		.top	= icd->y_current,
+		.width	= pix->width,
+		.height	= pix->height,
+	};
+	int ret;
+
+	xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
+	if (!xlate) {
+		dev_warn(&ici->dev, "Format %x not found\n", pix->pixelformat);
+		return -EINVAL;
+	}
+
+	ret = acquire_dma_channel(mx3_cam);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Might have to perform a complete interface initialisation like in
+	 * ipu_csi_init_interface() in mxc_v4l2_s_param(). Also consider
+	 * mxc_v4l2_s_fmt()
+	 */
+
+	configure_geometry(mx3_cam, &rect);
 
-	ret = icd->ops->set_fmt(icd, pixfmt ? xlate->cam_fmt->fourcc : 0, rect);
-	if (pixfmt && !ret) {
+	ret = icd->ops->set_fmt(icd, f);
+	if (!ret) {
 		icd->buswidth = xlate->buswidth;
 		icd->current_fmt = xlate->host_fmt;
 	}
@@ -1031,6 +1067,7 @@ static struct soc_camera_host_ops mx3_soc_camera_host_ops = {
 	.suspend	= mx3_camera_suspend,
 	.resume		= mx3_camera_resume,
 #endif
+	.set_crop	= mx3_camera_set_crop,
 	.set_fmt	= mx3_camera_set_fmt,
 	.try_fmt	= mx3_camera_try_fmt,
 	.get_formats	= mx3_camera_get_formats,
diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c
index 880e51f0e9fd..8dd93b36c787 100644
--- a/drivers/media/video/ov772x.c
+++ b/drivers/media/video/ov772x.c
@@ -781,11 +781,9 @@ ov772x_select_win(u32 width, u32 height)
 	return win;
 }
 
-static int ov772x_set_fmt(struct soc_camera_device *icd,
-			  __u32                     pixfmt,
-			  struct v4l2_rect         *rect)
+static int ov772x_set_params(struct ov772x_priv *priv, u32 width, u32 height,
+			     u32 pixfmt)
 {
-	struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
 	int ret = -EINVAL;
 	u8  val;
 	int i;
@@ -806,7 +804,7 @@ static int ov772x_set_fmt(struct soc_camera_device *icd,
 	/*
 	 * select win
 	 */
-	priv->win = ov772x_select_win(rect->width, rect->height);
+	priv->win = ov772x_select_win(width, height);
 
 	/*
 	 * reset hardware
@@ -870,6 +868,28 @@ ov772x_set_fmt_error:
 	return ret;
 }
 
+static int ov772x_set_crop(struct soc_camera_device *icd,
+			   struct v4l2_rect *rect)
+{
+	struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+
+	if (!priv->fmt)
+		return -EINVAL;
+
+	return ov772x_set_params(priv, rect->width, rect->height,
+				 priv->fmt->fourcc);
+}
+
+static int ov772x_set_fmt(struct soc_camera_device *icd,
+			  struct v4l2_format *f)
+{
+	struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+
+	return ov772x_set_params(priv, pix->width, pix->height,
+				 pix->pixelformat);
+}
+
 static int ov772x_try_fmt(struct soc_camera_device *icd,
 			  struct v4l2_format       *f)
 {
@@ -959,6 +979,7 @@ static struct soc_camera_ops ov772x_ops = {
 	.release		= ov772x_release,
 	.start_capture		= ov772x_start_capture,
 	.stop_capture		= ov772x_stop_capture,
+	.set_crop		= ov772x_set_crop,
 	.set_fmt		= ov772x_set_fmt,
 	.try_fmt		= ov772x_try_fmt,
 	.set_bus_param		= ov772x_set_bus_param,
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index 2cc203cfbe6c..c522616ef38f 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -1150,8 +1150,43 @@ static int pxa_camera_get_formats(struct soc_camera_device *icd, int idx,
 	return formats;
 }
 
+static int pxa_camera_set_crop(struct soc_camera_device *icd,
+			       struct v4l2_rect *rect)
+{
+	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+	struct pxa_camera_dev *pcdev = ici->priv;
+	struct soc_camera_sense sense = {
+		.master_clock = pcdev->mclk,
+		.pixel_clock_max = pcdev->ciclk / 4,
+	};
+	int ret;
+
+	/* If PCLK is used to latch data from the sensor, check sense */
+	if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN)
+		icd->sense = &sense;
+
+	ret = icd->ops->set_crop(icd, rect);
+
+	icd->sense = NULL;
+
+	if (ret < 0) {
+		dev_warn(&ici->dev, "Failed to crop to %ux%u@%u:%u\n",
+			 rect->width, rect->height, rect->left, rect->top);
+	} else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {
+		if (sense.pixel_clock > sense.pixel_clock_max) {
+			dev_err(&ici->dev,
+				"pixel clock %lu set by the camera too high!",
+				sense.pixel_clock);
+			return -EIO;
+		}
+		recalculate_fifo_timeout(pcdev, sense.pixel_clock);
+	}
+
+	return ret;
+}
+
 static int pxa_camera_set_fmt(struct soc_camera_device *icd,
-			      __u32 pixfmt, struct v4l2_rect *rect)
+			      struct v4l2_format *f)
 {
 	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 	struct pxa_camera_dev *pcdev = ici->priv;
@@ -1161,35 +1196,30 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd,
 		.master_clock = pcdev->mclk,
 		.pixel_clock_max = pcdev->ciclk / 4,
 	};
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_format cam_f = *f;
 	int ret;
 
-	if (pixfmt) {
-		xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
-		if (!xlate) {
-			dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
-			return -EINVAL;
-		}
-
-		cam_fmt = xlate->cam_fmt;
+	xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
+	if (!xlate) {
+		dev_warn(&ici->dev, "Format %x not found\n", pix->pixelformat);
+		return -EINVAL;
 	}
 
+	cam_fmt = xlate->cam_fmt;
+
 	/* If PCLK is used to latch data from the sensor, check sense */
 	if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN)
 		icd->sense = &sense;
 
-	switch (pixfmt) {
-	case 0:				/* Only geometry change */
-		ret = icd->ops->set_fmt(icd, pixfmt, rect);
-		break;
-	default:
-		ret = icd->ops->set_fmt(icd, cam_fmt->fourcc, rect);
-	}
+	cam_f.fmt.pix.pixelformat = cam_fmt->fourcc;
+	ret = icd->ops->set_fmt(icd, &cam_f);
 
 	icd->sense = NULL;
 
 	if (ret < 0) {
 		dev_warn(&ici->dev, "Failed to configure for format %x\n",
-			 pixfmt);
+			 pix->pixelformat);
 	} else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {
 		if (sense.pixel_clock > sense.pixel_clock_max) {
 			dev_err(&ici->dev,
@@ -1200,7 +1230,7 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd,
 		recalculate_fifo_timeout(pcdev, sense.pixel_clock);
 	}
 
-	if (pixfmt && !ret) {
+	if (!ret) {
 		icd->buswidth = xlate->buswidth;
 		icd->current_fmt = xlate->host_fmt;
 	}
@@ -1364,6 +1394,7 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = {
 	.remove		= pxa_camera_remove_device,
 	.suspend	= pxa_camera_suspend,
 	.resume		= pxa_camera_resume,
+	.set_crop	= pxa_camera_set_crop,
 	.get_formats	= pxa_camera_get_formats,
 	.set_fmt	= pxa_camera_set_fmt,
 	.try_fmt	= pxa_camera_try_fmt,
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index ed3bfc4cf9f9..3f71cb809652 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -638,24 +638,30 @@ add_single_format:
 	return formats;
 }
 
+static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
+				  struct v4l2_rect *rect)
+{
+	return icd->ops->set_crop(icd, rect);
+}
+
 static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
-				 __u32 pixfmt, struct v4l2_rect *rect)
+				 struct v4l2_format *f)
 {
 	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 	struct sh_mobile_ceu_dev *pcdev = ici->priv;
+	__u32 pixfmt = f->fmt.pix.pixelformat;
 	const struct soc_camera_format_xlate *xlate;
+	struct v4l2_format cam_f = *f;
 	int ret;
 
-	if (!pixfmt)
-		return icd->ops->set_fmt(icd, pixfmt, rect);
-
 	xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
 	if (!xlate) {
 		dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
 		return -EINVAL;
 	}
 
-	ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
+	cam_f.fmt.pix.pixelformat = xlate->cam_fmt->fourcc;
+	ret = icd->ops->set_fmt(icd, &cam_f);
 
 	if (!ret) {
 		icd->buswidth = xlate->buswidth;
@@ -787,6 +793,7 @@ static struct soc_camera_host_ops sh_mobile_ceu_host_ops = {
 	.add		= sh_mobile_ceu_add_device,
 	.remove		= sh_mobile_ceu_remove_device,
 	.get_formats	= sh_mobile_ceu_get_formats,
+	.set_crop	= sh_mobile_ceu_set_crop,
 	.set_fmt	= sh_mobile_ceu_set_fmt,
 	.try_fmt	= sh_mobile_ceu_try_fmt,
 	.reqbufs	= sh_mobile_ceu_reqbufs,
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index fcb05f06de8f..9939b045cb4c 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -417,9 +417,7 @@ static int soc_camera_s_fmt_vid_cap(struct file *file, void *priv,
 	struct soc_camera_device *icd = icf->icd;
 	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 	struct v4l2_pix_format *pix = &f->fmt.pix;
-	__u32 pixfmt = pix->pixelformat;
 	int ret;
-	struct v4l2_rect rect;
 
 	WARN_ON(priv != file->private_data);
 
@@ -435,23 +433,19 @@ static int soc_camera_s_fmt_vid_cap(struct file *file, void *priv,
 		goto unlock;
 	}
 
-	rect.left	= icd->x_current;
-	rect.top	= icd->y_current;
-	rect.width	= pix->width;
-	rect.height	= pix->height;
-	ret = ici->ops->set_fmt(icd, pix->pixelformat, &rect);
+	ret = ici->ops->set_fmt(icd, f);
 	if (ret < 0) {
 		goto unlock;
 	} else if (!icd->current_fmt ||
-		   icd->current_fmt->fourcc != pixfmt) {
+		   icd->current_fmt->fourcc != pix->pixelformat) {
 		dev_err(&ici->dev,
 			"Host driver hasn't set up current format correctly!\n");
 		ret = -EINVAL;
 		goto unlock;
 	}
 
-	icd->width		= rect.width;
-	icd->height		= rect.height;
+	icd->width		= f->fmt.pix.width;
+	icd->height		= f->fmt.pix.height;
 	icf->vb_vidq.field	= pix->field;
 	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		dev_warn(&icd->dev, "Attention! Wrong buf-type %d\n",
@@ -461,7 +455,7 @@ static int soc_camera_s_fmt_vid_cap(struct file *file, void *priv,
 		icd->width, icd->height);
 
 	/* set physical bus parameters */
-	ret = ici->ops->set_bus_param(icd, pixfmt);
+	ret = ici->ops->set_bus_param(icd, pix->pixelformat);
 
 unlock:
 	mutex_unlock(&icf->vb_vidq.vb_lock);
@@ -685,7 +679,7 @@ static int soc_camera_s_crop(struct file *file, void *fh,
 	/* Cropping is allowed during a running capture, guard consistency */
 	mutex_lock(&icf->vb_vidq.vb_lock);
 
-	ret = ici->ops->set_fmt(icd, 0, &a->c);
+	ret = ici->ops->set_crop(icd, &a->c);
 	if (!ret) {
 		icd->width	= a->c.width;
 		icd->height	= a->c.height;
@@ -918,6 +912,7 @@ int soc_camera_host_register(struct soc_camera_host *ici)
 	if (!ici || !ici->ops ||
 	    !ici->ops->try_fmt ||
 	    !ici->ops->set_fmt ||
+	    !ici->ops->set_crop ||
 	    !ici->ops->set_bus_param ||
 	    !ici->ops->querycap ||
 	    !ici->ops->init_videobuf ||
@@ -998,6 +993,7 @@ int soc_camera_device_register(struct soc_camera_device *icd)
 	    !icd->ops->release ||
 	    !icd->ops->start_capture ||
 	    !icd->ops->stop_capture ||
+	    !icd->ops->set_crop ||
 	    !icd->ops->set_fmt ||
 	    !icd->ops->try_fmt ||
 	    !icd->ops->query_bus_param ||
diff --git a/drivers/media/video/soc_camera_platform.c b/drivers/media/video/soc_camera_platform.c
index 013ab06e3180..c48676356ab7 100644
--- a/drivers/media/video/soc_camera_platform.c
+++ b/drivers/media/video/soc_camera_platform.c
@@ -79,8 +79,14 @@ soc_camera_platform_query_bus_param(struct soc_camera_device *icd)
 	return p->bus_param;
 }
 
+static int soc_camera_platform_set_crop(struct soc_camera_device *icd,
+					struct v4l2_rect *rect)
+{
+	return 0;
+}
+
 static int soc_camera_platform_set_fmt(struct soc_camera_device *icd,
-				       __u32 pixfmt, struct v4l2_rect *rect)
+				       struct v4l2_format *f)
 {
 	return 0;
 }
@@ -125,6 +131,7 @@ static struct soc_camera_ops soc_camera_platform_ops = {
 	.release		= soc_camera_platform_release,
 	.start_capture		= soc_camera_platform_start_capture,
 	.stop_capture		= soc_camera_platform_stop_capture,
+	.set_crop		= soc_camera_platform_set_crop,
 	.set_fmt		= soc_camera_platform_set_fmt,
 	.try_fmt		= soc_camera_platform_try_fmt,
 	.set_bus_param		= soc_camera_platform_set_bus_param,
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c
index 0558b22fd3fb..a39947643992 100644
--- a/drivers/media/video/tw9910.c
+++ b/drivers/media/video/tw9910.c
@@ -641,25 +641,12 @@ static int tw9910_set_register(struct soc_camera_device *icd,
 }
 #endif
 
-static int tw9910_set_fmt(struct soc_camera_device *icd, __u32 pixfmt,
-			      struct v4l2_rect *rect)
+static int tw9910_set_crop(struct soc_camera_device *icd,
+			   struct v4l2_rect *rect)
 {
 	struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
 	int                 ret  = -EINVAL;
 	u8                  val;
-	int                 i;
-
-	/*
-	 * check color format
-	 */
-	for (i = 0 ; i < ARRAY_SIZE(tw9910_color_fmt) ; i++) {
-		if (pixfmt == tw9910_color_fmt[i].fourcc) {
-			ret = 0;
-			break;
-		}
-	}
-	if (ret < 0)
-		goto tw9910_set_fmt_error;
 
 	/*
 	 * select suitable norm
@@ -746,8 +733,33 @@ tw9910_set_fmt_error:
 	return ret;
 }
 
+static int tw9910_set_fmt(struct soc_camera_device *icd,
+			  struct v4l2_format *f)
+{
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_rect rect = {
+		.left	= icd->x_current,
+		.top	= icd->y_current,
+		.width	= pix->width,
+		.height	= pix->height,
+	};
+	int i;
+
+	/*
+	 * check color format
+	 */
+	for (i = 0; i < ARRAY_SIZE(tw9910_color_fmt); i++)
+		if (pix->pixelformat == tw9910_color_fmt[i].fourcc)
+			break;
+
+	if (i == ARRAY_SIZE(tw9910_color_fmt))
+		return -EINVAL;
+
+	return tw9910_set_crop(icd, &rect);
+}
+
 static int tw9910_try_fmt(struct soc_camera_device *icd,
-			      struct v4l2_format *f)
+			  struct v4l2_format *f)
 {
 	struct v4l2_pix_format *pix = &f->fmt.pix;
 	const struct tw9910_scale_ctrl *scale;
@@ -835,6 +847,7 @@ static struct soc_camera_ops tw9910_ops = {
 	.release		= tw9910_release,
 	.start_capture		= tw9910_start_capture,
 	.stop_capture		= tw9910_stop_capture,
+	.set_crop		= tw9910_set_crop,
 	.set_fmt		= tw9910_set_fmt,
 	.try_fmt		= tw9910_try_fmt,
 	.set_bus_param		= tw9910_set_bus_param,
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index c63a3409ffb7..e9eb60740aaa 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -74,7 +74,8 @@ struct soc_camera_host_ops {
 	int (*resume)(struct soc_camera_device *);
 	int (*get_formats)(struct soc_camera_device *, int,
 			   struct soc_camera_format_xlate *);
-	int (*set_fmt)(struct soc_camera_device *, __u32, struct v4l2_rect *);
+	int (*set_crop)(struct soc_camera_device *, struct v4l2_rect *);
+	int (*set_fmt)(struct soc_camera_device *, struct v4l2_format *);
 	int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *);
 	void (*init_videobuf)(struct videobuf_queue *,
 			      struct soc_camera_device *);
@@ -159,7 +160,8 @@ struct soc_camera_ops {
 	int (*release)(struct soc_camera_device *);
 	int (*start_capture)(struct soc_camera_device *);
 	int (*stop_capture)(struct soc_camera_device *);
-	int (*set_fmt)(struct soc_camera_device *, __u32, struct v4l2_rect *);
+	int (*set_crop)(struct soc_camera_device *, struct v4l2_rect *);
+	int (*set_fmt)(struct soc_camera_device *, struct v4l2_format *);
 	int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *);
 	unsigned long (*query_bus_param)(struct soc_camera_device *);
 	int (*set_bus_param)(struct soc_camera_device *, unsigned long);
-- 
cgit v1.2.3


From 025c18a19d7d7eb8745d25986f982a5f35a85157 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Fri, 13 Mar 2009 06:08:20 -0300
Subject: V4L/DVB (11027): soc-camera: configure drivers with a default format
 at probe time

Currently soc-camera doesn't set up any image format without an explicit
S_FMT. According to the API this should be supported, for example,
capture-example.c from v4l2-apps by default doesn't issue an S_FMT. This
patch moves negotiating of available host-camera format translations to
probe() time, and restores the state from the last close() on the next
open(). This is needed for some drivers, which power down or reset
hardware after the last user closes the interface. This patch also has a
nice side-effect of avoiding multiple allocation anf freeing of format
translation tables.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/soc_camera.c | 39 +++++++++++++++++++++++----------------
 include/media/soc_camera.h       |  1 +
 2 files changed, 24 insertions(+), 16 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index fcd6b2ce9c19..6d8bfd4d97e2 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -286,7 +286,9 @@ static int soc_camera_set_fmt(struct soc_camera_file *icf,
 
 	icd->width		= pix->width;
 	icd->height		= pix->height;
-	icf->vb_vidq.field	= pix->field;
+	icf->vb_vidq.field	=
+		icd->field	= pix->field;
+
 	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		dev_warn(&icd->dev, "Attention! Wrong buf-type %d\n",
 			 f->type);
@@ -339,27 +341,24 @@ static int soc_camera_open(struct file *file)
 
 	/* Now we really have to activate the camera */
 	if (icd->use_count == 1) {
+		/* Restore parameters before the last close() per V4L2 API */
 		struct v4l2_format f = {
 			.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
 			.fmt.pix = {
-				.width		= DEFAULT_WIDTH,
-				.height		= DEFAULT_HEIGHT,
-				.field		= V4L2_FIELD_ANY,
+				.width		= icd->width,
+				.height		= icd->height,
+				.field		= icd->field,
+				.pixelformat	= icd->current_fmt->fourcc,
+				.colorspace	= icd->current_fmt->colorspace,
 			},
 		};
 
-		ret = soc_camera_init_user_formats(icd);
-		if (ret < 0)
-			goto eiufmt;
 		ret = ici->ops->add(icd);
 		if (ret < 0) {
 			dev_err(&icd->dev, "Couldn't activate the camera: %d\n", ret);
 			goto eiciadd;
 		}
 
-		f.fmt.pix.pixelformat	= icd->current_fmt->fourcc;
-		f.fmt.pix.colorspace	= icd->current_fmt->colorspace;
-
 		/* Try to configure with default parameters */
 		ret = soc_camera_set_fmt(icf, &f);
 		if (ret < 0)
@@ -382,8 +381,6 @@ static int soc_camera_open(struct file *file)
 esfmt:
 	ici->ops->remove(icd);
 eiciadd:
-	soc_camera_free_user_formats(icd);
-eiufmt:
 	icd->use_count--;
 	mutex_unlock(&icd->video_lock);
 	module_put(ici->ops->owner);
@@ -403,10 +400,9 @@ static int soc_camera_close(struct file *file)
 
 	mutex_lock(&icd->video_lock);
 	icd->use_count--;
-	if (!icd->use_count) {
+	if (!icd->use_count)
 		ici->ops->remove(icd);
-		soc_camera_free_user_formats(icd);
-	}
+
 	mutex_unlock(&icd->video_lock);
 
 	module_put(icd->ops->owner);
@@ -874,9 +870,18 @@ static int soc_camera_probe(struct device *dev)
 		qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE);
 		icd->exposure = qctrl ? qctrl->default_value :
 			(unsigned short)~0;
+
+		ret = soc_camera_init_user_formats(icd);
+		if (ret < 0)
+			goto eiufmt;
+
+		icd->height	= DEFAULT_HEIGHT;
+		icd->width	= DEFAULT_WIDTH;
+		icd->field	= V4L2_FIELD_ANY;
 	}
-	ici->ops->remove(icd);
 
+eiufmt:
+	ici->ops->remove(icd);
 eiadd:
 	mutex_unlock(&icd->video_lock);
 	module_put(ici->ops->owner);
@@ -895,6 +900,8 @@ static int soc_camera_remove(struct device *dev)
 	if (icd->ops->remove)
 		icd->ops->remove(icd);
 
+	soc_camera_free_user_formats(icd);
+
 	return 0;
 }
 
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index e9eb60740aaa..013c81875d76 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -45,6 +45,7 @@ struct soc_camera_device {
 	int num_formats;
 	struct soc_camera_format_xlate *user_formats;
 	int num_user_formats;
+	enum v4l2_field field;		/* Preserve field over close() */
 	struct module *owner;
 	void *host_priv;		/* Per-device host private data */
 	/* soc_camera.c private count. Only accessed with .video_lock held */
-- 
cgit v1.2.3


From 28f59339f72d191e24e0f97f156a481dd5c3db65 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Fri, 13 Mar 2009 06:08:20 -0300
Subject: V4L/DVB (11030): soc-camera: add board hook to specify the buswidth
 for camera sensors

Camera sensors have a native bus width say support, but on some
boards not all sensor data lines are connected to the image
interface and thus support a different bus width than the sensors
native one. Some boards even have a bus driver which dynamically
switches between different bus widths with a GPIO.

This patch adds a hook which board code can use to support different
bus widths.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/media/soc_camera.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'include')

diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index 013c81875d76..b44fa0952ad9 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -102,6 +102,13 @@ struct soc_camera_link {
 	/* Optional callbacks to power on or off and reset the sensor */
 	int (*power)(struct device *, int);
 	int (*reset)(struct device *);
+	/*
+	 * some platforms may support different data widths than the sensors
+	 * native ones due to different data line routing. Let the board code
+	 * overwrite the width flags.
+	 */
+	int (*set_bus_param)(struct soc_camera_link *, unsigned long flags);
+	unsigned long (*query_bus_param)(struct soc_camera_link *);
 };
 
 static inline struct soc_camera_device *to_soc_camera_dev(struct device *dev)
-- 
cgit v1.2.3


From d42574d1d26a17b5c4a3e9d5cbd2e5cacfd550fa Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Fri, 13 Mar 2009 06:08:20 -0300
Subject: V4L/DVB (11034): soc-camera: remove now unused gpio member of struct
 soc_camera_link

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 arch/arm/mach-pxa/pcm990-baseboard.c | 1 -
 include/media/soc_camera.h           | 2 --
 2 files changed, 3 deletions(-)

(limited to 'include')

diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index 90a399075ff6..6112740b4ae9 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -421,7 +421,6 @@ static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link)
 
 static struct soc_camera_link iclink = {
 	.bus_id	= 0, /* Must match with the camera ID above */
-	.gpio = NR_BUILTIN_GPIO + 1,
 	.query_bus_param = pcm990_camera_query_bus_param,
 	.set_bus_param = pcm990_camera_set_bus_param,
 };
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index b44fa0952ad9..37013688af44 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -95,8 +95,6 @@ struct soc_camera_host_ops {
 struct soc_camera_link {
 	/* Camera bus id, used to match a camera and a bus */
 	int bus_id;
-	/* GPIO number to switch between 8 and 10 bit modes */
-	unsigned int gpio;
 	/* Per camera SOCAM_SENSOR_* bus flags */
 	unsigned long flags;
 	/* Optional callbacks to power on or off and reset the sensor */
-- 
cgit v1.2.3


From 6273fda6e32e2cd9a478545d0cbc15ac497b1f4b Mon Sep 17 00:00:00 2001
From: Andy Walls <awalls@radix.net>
Date: Sat, 14 Mar 2009 17:06:07 -0300
Subject: V4L/DVB (11042): v4l2-api: Add definitions for
 V4L2_MPEG_STREAM_VBI_FMT_IVTV payloads

This addition to the v4l2-api add definitions for the constants and
data structures used for sliced VBI data insertion into MPEG streams triggered
by V4L2_MPEG_STREAM_VBI_FMT_IVTV.  This simply declares what the ivtv and
cx18 drivers and MythTV have already been doing and provides a proper data
structure definition to user space.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/linux/ivtv.h      | 10 +++++-----
 include/linux/videodev2.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/linux/ivtv.h b/include/linux/ivtv.h
index f2720280b9ec..062d20f74322 100644
--- a/include/linux/ivtv.h
+++ b/include/linux/ivtv.h
@@ -60,10 +60,10 @@ struct ivtv_dma_frame {
 
 #define IVTV_IOC_DMA_FRAME  _IOW ('V', BASE_VIDIOC_PRIVATE+0, struct ivtv_dma_frame)
 
-/* These are the VBI types as they appear in the embedded VBI private packets. */
-#define IVTV_SLICED_TYPE_TELETEXT_B     (1)
-#define IVTV_SLICED_TYPE_CAPTION_525    (4)
-#define IVTV_SLICED_TYPE_WSS_625        (5)
-#define IVTV_SLICED_TYPE_VPS            (7)
+/* Deprecated defines: applications should use the defines from videodev2.h */
+#define IVTV_SLICED_TYPE_TELETEXT_B     V4L2_MPEG_VBI_IVTV_TELETEXT_B
+#define IVTV_SLICED_TYPE_CAPTION_525    V4L2_MPEG_VBI_IVTV_CAPTION_525
+#define IVTV_SLICED_TYPE_WSS_625        V4L2_MPEG_VBI_IVTV_WSS_625
+#define IVTV_SLICED_TYPE_VPS            V4L2_MPEG_VBI_IVTV_VPS
 
 #endif /* _LINUX_IVTV_H */
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 78ba0755ffb3..61f1a4921afd 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -1347,6 +1347,53 @@ struct v4l2_sliced_vbi_data {
 	__u8    data[48];
 };
 
+/*
+ * Sliced VBI data inserted into MPEG Streams
+ */
+
+/*
+ * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
+ *
+ * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
+ * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
+ * data
+ *
+ * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
+ * definitions are not included here.  See the MPEG-2 specifications for details
+ * on these headers.
+ */
+
+/* Line type IDs */
+#define V4L2_MPEG_VBI_IVTV_TELETEXT_B     (1)
+#define V4L2_MPEG_VBI_IVTV_CAPTION_525    (4)
+#define V4L2_MPEG_VBI_IVTV_WSS_625        (5)
+#define V4L2_MPEG_VBI_IVTV_VPS            (7)
+
+struct v4l2_mpeg_vbi_itv0_line {
+	__u8 id;	/* One of V4L2_MPEG_VBI_IVTV_* above */
+	__u8 data[42];	/* Sliced VBI data for the line */
+} __attribute__ ((packed));
+
+struct v4l2_mpeg_vbi_itv0 {
+	__le32 linemask[2]; /* Bitmasks of VBI service lines present */
+	struct v4l2_mpeg_vbi_itv0_line line[35];
+} __attribute__ ((packed));
+
+struct v4l2_mpeg_vbi_ITV0 {
+	struct v4l2_mpeg_vbi_itv0_line line[36];
+} __attribute__ ((packed));
+
+#define V4L2_MPEG_VBI_IVTV_MAGIC0	"itv0"
+#define V4L2_MPEG_VBI_IVTV_MAGIC1	"ITV0"
+
+struct v4l2_mpeg_vbi_fmt_ivtv {
+	__u8 magic[4];
+	union {
+		struct v4l2_mpeg_vbi_itv0 itv0;
+		struct v4l2_mpeg_vbi_ITV0 ITV0;
+	};
+} __attribute__ ((packed));
+
 /*
  *	A G G R E G A T E   S T R U C T U R E S
  */
-- 
cgit v1.2.3


From ae6cfaace120f4330715b56265ce0e4a710e1276 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 14 Mar 2009 08:28:45 -0300
Subject: V4L/DVB (11044): v4l2-device: add v4l2_device_disconnect

Call v4l2_device_disconnect when the parent of a hotpluggable device
disconnects. This ensures that you do not have a pointer to a device that
is no longer present.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 Documentation/video4linux/CARDLIST.bttv      |  1 -
 Documentation/video4linux/v4l2-framework.txt | 11 +++++++++++
 drivers/media/video/v4l2-device.c            | 15 +++++++++++----
 include/media/v4l2-device.h                  |  6 +++++-
 4 files changed, 27 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/Documentation/video4linux/CARDLIST.bttv b/Documentation/video4linux/CARDLIST.bttv
index f11c583295e9..e17750473e08 100644
--- a/Documentation/video4linux/CARDLIST.bttv
+++ b/Documentation/video4linux/CARDLIST.bttv
@@ -157,4 +157,3 @@
 156 -> IVCE-8784                                           [0000:f050,0001:f050,0002:f050,0003:f050]
 157 -> Geovision GV-800(S) (master)                        [800a:763d]
 158 -> Geovision GV-800(S) (slave)                         [800b:763d,800c:763d,800d:763d]
-159 -> ProVideo PV183                                      [1830:1540,1831:1540,1832:1540,1833:1540,1834:1540,1835:1540,1836:1540,1837:1540]
diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt
index 4207590b2ac8..a31177390e55 100644
--- a/Documentation/video4linux/v4l2-framework.txt
+++ b/Documentation/video4linux/v4l2-framework.txt
@@ -105,6 +105,17 @@ You unregister with:
 
 Unregistering will also automatically unregister all subdevs from the device.
 
+If you have a hotpluggable device (e.g. a USB device), then when a disconnect
+happens the parent device becomes invalid. Since v4l2_device has a pointer to
+that parent device it has to be cleared as well to mark that the parent is
+gone. To do this call:
+
+	v4l2_device_disconnect(struct v4l2_device *v4l2_dev);
+
+This does *not* unregister the subdevs, so you still need to call the
+v4l2_device_unregister() function for that. If your driver is not hotpluggable,
+then there is no need to call v4l2_device_disconnect().
+
 Sometimes you need to iterate over all devices registered by a specific
 driver. This is usually the case if multiple device drivers use the same
 hardware. E.g. the ivtvfb driver is a framebuffer driver that uses the ivtv
diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c
index b3dcb8454379..94aa485ade52 100644
--- a/drivers/media/video/v4l2-device.c
+++ b/drivers/media/video/v4l2-device.c
@@ -49,19 +49,26 @@ int v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev)
 }
 EXPORT_SYMBOL_GPL(v4l2_device_register);
 
+void v4l2_device_disconnect(struct v4l2_device *v4l2_dev)
+{
+	if (v4l2_dev->dev) {
+		dev_set_drvdata(v4l2_dev->dev, NULL);
+		v4l2_dev->dev = NULL;
+	}
+}
+EXPORT_SYMBOL_GPL(v4l2_device_disconnect);
+
 void v4l2_device_unregister(struct v4l2_device *v4l2_dev)
 {
 	struct v4l2_subdev *sd, *next;
 
 	if (v4l2_dev == NULL)
 		return;
-	if (v4l2_dev->dev)
-		dev_set_drvdata(v4l2_dev->dev, NULL);
+	v4l2_device_disconnect(v4l2_dev);
+
 	/* Unregister subdevs */
 	list_for_each_entry_safe(sd, next, &v4l2_dev->subdevs, list)
 		v4l2_device_unregister_subdev(sd);
-
-	v4l2_dev->dev = NULL;
 }
 EXPORT_SYMBOL_GPL(v4l2_device_unregister);
 
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 3d8e96f6ceb3..0dd3e8e8653e 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -53,7 +53,11 @@ struct v4l2_device {
    dev may be NULL in rare cases (ISA devices). In that case you
    must fill in the v4l2_dev->name field before calling this function. */
 int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev);
-/* Set v4l2_dev->dev->driver_data to NULL and unregister all sub-devices */
+/* Set v4l2_dev->dev to NULL. Call when the USB parent disconnects.
+   Since the parent disappears this ensures that v4l2_dev doesn't have an
+   invalid parent pointer. */
+void v4l2_device_disconnect(struct v4l2_device *v4l2_dev);
+/* Unregister all sub-devices and any other resources related to v4l2_dev. */
 void v4l2_device_unregister(struct v4l2_device *v4l2_dev);
 
 /* Register a subdev with a v4l2 device. While registered the subdev module
-- 
cgit v1.2.3


From 968cf78285ef03672ae514e9ad7a60919eb97551 Mon Sep 17 00:00:00 2001
From: Devin Heitmueller <dheitmueller@linuxtv.org>
Date: Wed, 11 Mar 2009 03:00:38 -0300
Subject: V4L/DVB (11065): au8522: add support for analog side of demodulator

Add support for the analog functionality in the au8522 analog/digital
demodulator

Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and testing.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
[mchehab: renamed drivers/media/video/au8522_decoder.c as drivers/media/dvb/frontends/au8522_decoder.c to avoid breaking bisect]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/dvb/frontends/Makefile         |   2 +-
 drivers/media/dvb/frontends/au8522.h         |  16 +
 drivers/media/dvb/frontends/au8522_decoder.c | 839 +++++++++++++++++++++++++++
 drivers/media/dvb/frontends/au8522_priv.h    | 347 +++++++++++
 include/linux/i2c-id.h                       |   1 +
 5 files changed, 1204 insertions(+), 1 deletion(-)
 create mode 100644 drivers/media/dvb/frontends/au8522_decoder.c

(limited to 'include')

diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile
index 742826523df5..65a336aa1db6 100644
--- a/drivers/media/dvb/frontends/Makefile
+++ b/drivers/media/dvb/frontends/Makefile
@@ -8,7 +8,7 @@ EXTRA_CFLAGS += -Idrivers/media/common/tuners/
 s921-objs := s921_module.o s921_core.o
 stb0899-objs = stb0899_drv.o stb0899_algo.o
 stv0900-objs = stv0900_core.o stv0900_sw.o
-au8522-objs = au8522_dig.o
+au8522-objs = au8522_dig.o au8522_decoder.o
 
 obj-$(CONFIG_DVB_PLL) += dvb-pll.o
 obj-$(CONFIG_DVB_STV0299) += stv0299.o
diff --git a/drivers/media/dvb/frontends/au8522.h b/drivers/media/dvb/frontends/au8522.h
index 7b94f554a093..565dcf31af57 100644
--- a/drivers/media/dvb/frontends/au8522.h
+++ b/drivers/media/dvb/frontends/au8522.h
@@ -74,6 +74,22 @@ struct dvb_frontend *au8522_attach(const struct au8522_config *config,
 }
 #endif /* CONFIG_DVB_AU8522 */
 
+/* Other modes may need to be added later */
+enum au8522_video_input {
+	AU8522_COMPOSITE_CH1 = 1,
+	AU8522_COMPOSITE_CH2,
+	AU8522_COMPOSITE_CH3,
+	AU8522_COMPOSITE_CH4,
+	AU8522_COMPOSITE_CH4_SIF,
+	AU8522_SVIDEO_CH13,
+	AU8522_SVIDEO_CH24,
+};
+
+enum au8522_audio_input {
+	AU8522_AUDIO_NONE,
+	AU8522_AUDIO_SIF,
+};
+
 #endif /* __AU8522_H__ */
 
 /*
diff --git a/drivers/media/dvb/frontends/au8522_decoder.c b/drivers/media/dvb/frontends/au8522_decoder.c
new file mode 100644
index 000000000000..e2927c145cd8
--- /dev/null
+++ b/drivers/media/dvb/frontends/au8522_decoder.c
@@ -0,0 +1,839 @@
+/*
+ * Auvitek AU8522 QAM/8VSB demodulator driver and video decoder
+ *
+ * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
+ * Copyright (C) 2005-2008 Auvitek International, Ltd.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/* Developer notes:
+ *
+ * VBI support is not yet working
+ * Saturation and hue setting are not yet working
+ * Enough is implemented here for CVBS and S-Video inputs, but the actual
+ *  analog demodulator code isn't implemented (not needed for xc5000 since it
+ *  has its own demodulator and outputs CVBS)
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv-legacy.h>
+#include <media/v4l2-device.h>
+#include "au8522.h"
+#include "au8522_priv.h"
+
+MODULE_AUTHOR("Devin Heitmueller");
+MODULE_LICENSE("GPL");
+
+static int au8522_analog_debug;
+
+static unsigned short normal_i2c[] = { 0x8e >> 1, I2C_CLIENT_END };
+
+module_param_named(analog_debug, au8522_analog_debug, int, 0644);
+
+MODULE_PARM_DESC(analog_debug,
+		 "Analog debugging messages [0=Off (default) 1=On]");
+
+I2C_CLIENT_INSMOD;
+
+struct au8522_register_config {
+	u16 reg_name;
+	u8 reg_val[8];
+};
+
+
+/* Video Decoder Filter Coefficients
+   The values are as follows from left to right
+   0="ATV RF" 1="ATV RF13" 2="CVBS" 3="S-Video" 4="PAL" 5=CVBS13" 6="SVideo13"
+*/
+struct au8522_register_config filter_coef[] = {
+	{AU8522_FILTER_COEF_R410, {0x25, 0x00, 0x25, 0x25, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R411, {0x20, 0x00, 0x20, 0x20, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R412, {0x03, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R413, {0xe6, 0x00, 0xe6, 0xe6, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R414, {0x40, 0x00, 0x40, 0x40, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R415, {0x1b, 0x00, 0x1b, 0x1b, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R416, {0xc0, 0x00, 0xc0, 0x04, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R417, {0x04, 0x00, 0x04, 0x04, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R418, {0x8c, 0x00, 0x8c, 0x8c, 0x00, 0x00, 0x00}},
+	{AU8522_FILTER_COEF_R419, {0xa0, 0x40, 0xa0, 0xa0, 0x40, 0x40, 0x40}},
+	{AU8522_FILTER_COEF_R41A, {0x21, 0x09, 0x21, 0x21, 0x09, 0x09, 0x09}},
+	{AU8522_FILTER_COEF_R41B, {0x6c, 0x38, 0x6c, 0x6c, 0x38, 0x38, 0x38}},
+	{AU8522_FILTER_COEF_R41C, {0x03, 0xff, 0x03, 0x03, 0xff, 0xff, 0xff}},
+	{AU8522_FILTER_COEF_R41D, {0xbf, 0xc7, 0xbf, 0xbf, 0xc7, 0xc7, 0xc7}},
+	{AU8522_FILTER_COEF_R41E, {0xa0, 0xdf, 0xa0, 0xa0, 0xdf, 0xdf, 0xdf}},
+	{AU8522_FILTER_COEF_R41F, {0x10, 0x06, 0x10, 0x10, 0x06, 0x06, 0x06}},
+	{AU8522_FILTER_COEF_R420, {0xae, 0x30, 0xae, 0xae, 0x30, 0x30, 0x30}},
+	{AU8522_FILTER_COEF_R421, {0xc4, 0x01, 0xc4, 0xc4, 0x01, 0x01, 0x01}},
+	{AU8522_FILTER_COEF_R422, {0x54, 0xdd, 0x54, 0x54, 0xdd, 0xdd, 0xdd}},
+	{AU8522_FILTER_COEF_R423, {0xd0, 0xaf, 0xd0, 0xd0, 0xaf, 0xaf, 0xaf}},
+	{AU8522_FILTER_COEF_R424, {0x1c, 0xf7, 0x1c, 0x1c, 0xf7, 0xf7, 0xf7}},
+	{AU8522_FILTER_COEF_R425, {0x76, 0xdb, 0x76, 0x76, 0xdb, 0xdb, 0xdb}},
+	{AU8522_FILTER_COEF_R426, {0x61, 0xc0, 0x61, 0x61, 0xc0, 0xc0, 0xc0}},
+	{AU8522_FILTER_COEF_R427, {0xd1, 0x2f, 0xd1, 0xd1, 0x2f, 0x2f, 0x2f}},
+	{AU8522_FILTER_COEF_R428, {0x84, 0xd8, 0x84, 0x84, 0xd8, 0xd8, 0xd8}},
+	{AU8522_FILTER_COEF_R429, {0x06, 0xfb, 0x06, 0x06, 0xfb, 0xfb, 0xfb}},
+	{AU8522_FILTER_COEF_R42A, {0x21, 0xd5, 0x21, 0x21, 0xd5, 0xd5, 0xd5}},
+	{AU8522_FILTER_COEF_R42B, {0x0a, 0x3e, 0x0a, 0x0a, 0x3e, 0x3e, 0x3e}},
+	{AU8522_FILTER_COEF_R42C, {0xe6, 0x15, 0xe6, 0xe6, 0x15, 0x15, 0x15}},
+	{AU8522_FILTER_COEF_R42D, {0x01, 0x34, 0x01, 0x01, 0x34, 0x34, 0x34}},
+
+};
+#define NUM_FILTER_COEF (sizeof (filter_coef) / sizeof(struct au8522_register_config))
+
+
+/* Registers 0x060b through 0x0652 are the LP Filter coefficients
+   The values are as follows from left to right
+   0="SIF" 1="ATVRF/ATVRF13"
+   Note: the "ATVRF/ATVRF13" mode has never been tested
+*/
+struct au8522_register_config lpfilter_coef[] = {
+	{0x060b, {0x21, 0x0b}},
+	{0x060c, {0xad, 0xad}},
+	{0x060d, {0x70, 0xf0}},
+	{0x060e, {0xea, 0xe9}},
+	{0x060f, {0xdd, 0xdd}},
+	{0x0610, {0x08, 0x64}},
+	{0x0611, {0x60, 0x60}},
+	{0x0612, {0xf8, 0xb2}},
+	{0x0613, {0x01, 0x02}},
+	{0x0614, {0xe4, 0xb4}},
+	{0x0615, {0x19, 0x02}},
+	{0x0616, {0xae, 0x2e}},
+	{0x0617, {0xee, 0xc5}},
+	{0x0618, {0x56, 0x56}},
+	{0x0619, {0x30, 0x58}},
+	{0x061a, {0xf9, 0xf8}},
+	{0x061b, {0x24, 0x64}},
+	{0x061c, {0x07, 0x07}},
+	{0x061d, {0x30, 0x30}},
+	{0x061e, {0xa9, 0xed}},
+	{0x061f, {0x09, 0x0b}},
+	{0x0620, {0x42, 0xc2}},
+	{0x0621, {0x1d, 0x2a}},
+	{0x0622, {0xd6, 0x56}},
+	{0x0623, {0x95, 0x8b}},
+	{0x0624, {0x2b, 0x2b}},
+	{0x0625, {0x30, 0x24}},
+	{0x0626, {0x3e, 0x3e}},
+	{0x0627, {0x62, 0xe2}},
+	{0x0628, {0xe9, 0xf5}},
+	{0x0629, {0x99, 0x19}},
+	{0x062a, {0xd4, 0x11}},
+	{0x062b, {0x03, 0x04}},
+	{0x062c, {0xb5, 0x85}},
+	{0x062d, {0x1e, 0x20}},
+	{0x062e, {0x2a, 0xea}},
+	{0x062f, {0xd7, 0xd2}},
+	{0x0630, {0x15, 0x15}},
+	{0x0631, {0xa3, 0xa9}},
+	{0x0632, {0x1f, 0x1f}},
+	{0x0633, {0xf9, 0xd1}},
+	{0x0634, {0xc0, 0xc3}},
+	{0x0635, {0x4d, 0x8d}},
+	{0x0636, {0x21, 0x31}},
+	{0x0637, {0x83, 0x83}},
+	{0x0638, {0x08, 0x8c}},
+	{0x0639, {0x19, 0x19}},
+	{0x063a, {0x45, 0xa5}},
+	{0x063b, {0xef, 0xec}},
+	{0x063c, {0x8a, 0x8a}},
+	{0x063d, {0xf4, 0xf6}},
+	{0x063e, {0x8f, 0x8f}},
+	{0x063f, {0x44, 0x0c}},
+	{0x0640, {0xef, 0xf0}},
+	{0x0641, {0x66, 0x66}},
+	{0x0642, {0xcc, 0xd2}},
+	{0x0643, {0x41, 0x41}},
+	{0x0644, {0x63, 0x93}},
+	{0x0645, {0x8e, 0x8e}},
+	{0x0646, {0xa2, 0x42}},
+	{0x0647, {0x7b, 0x7b}},
+	{0x0648, {0x04, 0x04}},
+	{0x0649, {0x00, 0x00}},
+	{0x064a, {0x40, 0x40}},
+	{0x064b, {0x8c, 0x98}},
+	{0x064c, {0x00, 0x00}},
+	{0x064d, {0x63, 0xc3}},
+	{0x064e, {0x04, 0x04}},
+	{0x064f, {0x20, 0x20}},
+	{0x0650, {0x00, 0x00}},
+	{0x0651, {0x40 ,0x40}},
+	{0x0652, {0x01, 0x01}},
+};
+#define NUM_LPFILTER_COEF (sizeof (lpfilter_coef) / sizeof(struct au8522_register_config))
+
+static inline struct au8522_state *to_state(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct au8522_state, sd);
+}
+
+static void setup_vbi(struct au8522_state *state, int aud_input)
+{
+	int i;
+
+	/* These are set to zero regardless of what mode we're in */
+	au8522_writereg(state, AU8522_TVDEC_VBI_CTRL_H_REG017H, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_CTRL_L_REG018H, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_TOTAL_BITS_REG019H, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_TUNIT_H_REG01AH, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_TUNIT_L_REG01BH, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_THRESH1_REG01CH, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_PAT2_REG01EH, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_PAT1_REG01FH, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_PAT0_REG020H, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_MASK2_REG021H,0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_MASK1_REG022H,0x00);
+	au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_MASK0_REG023H,0x00);
+
+	/* Setup the VBI registers */
+	for (i = 0x30; i < 0x60; i++) {
+		au8522_writereg(state, i, 0x40);
+	}
+	/* For some reason, every register is 0x40 except register 0x44
+	   (confirmed via the HVR-950q USB capture) */
+	au8522_writereg(state, 0x44, 0x60);
+
+	/* Enable VBI (we always do this regardless of whether the user is
+	   viewing closed caption info) */
+	au8522_writereg(state, AU8522_TVDEC_VBI_CTRL_H_REG017H,
+			AU8522_TVDEC_VBI_CTRL_H_REG017H_CCON);
+
+}
+
+static void setup_decoder_defaults(struct au8522_state *state, u8 input_mode)
+{
+	int i;
+	int filter_coef_type;
+
+	/* Provide reasonable defaults for picture tuning values */
+	au8522_writereg(state, AU8522_TVDEC_SHARPNESSREG009H, 0x07);
+	au8522_writereg(state, AU8522_TVDEC_BRIGHTNESS_REG00AH, 0xed);
+	state->brightness = 0xed - 128;
+	au8522_writereg(state, AU8522_TVDEC_CONTRAST_REG00BH, 0x79);
+	state->contrast = 0x79;
+	au8522_writereg(state, AU8522_TVDEC_SATURATION_CB_REG00CH, 0x80);
+	au8522_writereg(state, AU8522_TVDEC_SATURATION_CR_REG00DH, 0x80);
+	au8522_writereg(state, AU8522_TVDEC_HUE_H_REG00EH, 0x00);
+	au8522_writereg(state, AU8522_TVDEC_HUE_L_REG00FH, 0x00);
+
+	/* Other decoder registers */
+	au8522_writereg(state, AU8522_TVDEC_INT_MASK_REG010H, 0x00);
+
+	if (input_mode == 0x23) {
+		/* S-Video input mapping */
+		au8522_writereg(state, AU8522_VIDEO_MODE_REG011H, 0x04);
+	} else {
+		/* All other modes (CVBS/ATVRF etc.) */
+		au8522_writereg(state, AU8522_VIDEO_MODE_REG011H, 0x00);
+	}
+
+	au8522_writereg(state, AU8522_TVDEC_PGA_REG012H,
+			AU8522_TVDEC_PGA_REG012H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_MODE_REG015H,
+			AU8522_TVDEC_COMB_MODE_REG015H_CVBS);
+	au8522_writereg(state, AU8522_TVDED_DBG_MODE_REG060H,
+			AU8522_TVDED_DBG_MODE_REG060H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL1_REG061H,
+			AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS13);
+	au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL2_REG062H,
+			AU8522_TVDEC_FORMAT_CTRL2_REG062H_CVBS13);
+	au8522_writereg(state, AU8522_TVDEC_VCR_DET_LLIM_REG063H,
+			AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_VCR_DET_HLIM_REG064H,
+			AU8522_TVDEC_VCR_DET_HLIM_REG064H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR1_REG065H,
+			AU8522_TVDEC_COMB_VDIF_THR1_REG065H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR2_REG066H,
+			AU8522_TVDEC_COMB_VDIF_THR2_REG066H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR3_REG067H,
+			AU8522_TVDEC_COMB_VDIF_THR3_REG067H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_NOTCH_THR_REG068H,
+			AU8522_TVDEC_COMB_NOTCH_THR_REG068H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR1_REG069H,
+			AU8522_TVDEC_COMB_HDIF_THR1_REG069H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR2_REG06AH,
+			AU8522_TVDEC_COMB_HDIF_THR2_REG06AH_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR3_REG06BH,
+			AU8522_TVDEC_COMB_HDIF_THR3_REG06BH_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH,
+			AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH,
+			AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH,
+			AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_UV_SEP_THR_REG06FH,
+			AU8522_TVDEC_UV_SEP_THR_REG06FH_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H,
+			AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H_CVBS);
+	au8522_writereg(state, AU8522_REG071H, AU8522_REG071H_CVBS);
+	au8522_writereg(state, AU8522_REG072H, AU8522_REG072H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H,
+			AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H_CVBS);
+	au8522_writereg(state, AU8522_REG074H, AU8522_REG074H_CVBS);
+	au8522_writereg(state, AU8522_REG075H, AU8522_REG075H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_DCAGC_CTRL_REG077H,
+			AU8522_TVDEC_DCAGC_CTRL_REG077H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_PIC_START_ADJ_REG078H,
+			AU8522_TVDEC_PIC_START_ADJ_REG078H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H,
+			AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH,
+			AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_INTRP_CTRL_REG07BH,
+			AU8522_TVDEC_INTRP_CTRL_REG07BH_CVBS);
+	au8522_writereg(state, AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H,
+			AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H_CVBS);
+	au8522_writereg(state, AU8522_TOREGAAGC_REG0E5H,
+			AU8522_TOREGAAGC_REG0E5H_CVBS);
+	au8522_writereg(state, AU8522_REG016H, AU8522_REG016H_CVBS);
+
+	setup_vbi(state, 0);
+
+	if (input_mode == AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13 ||
+	    input_mode == AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH24) {
+		/* Despite what the table says, for the HVR-950q we still need
+		   to be in CVBS mode for the S-Video input (reason uknown). */
+		/* filter_coef_type = 3; */
+		filter_coef_type = 5;
+	} else {
+		filter_coef_type = 5;
+	}
+
+	/* Load the Video Decoder Filter Coefficients */
+	for (i = 0; i < NUM_FILTER_COEF; i++) {
+		au8522_writereg(state, filter_coef[i].reg_name,
+				filter_coef[i].reg_val[filter_coef_type]);
+	}
+
+	/* It's not clear what these registers are for, but they are always
+	   set to the same value regardless of what mode we're in */
+	au8522_writereg(state, AU8522_REG42EH, 0x87);
+	au8522_writereg(state, AU8522_REG42FH, 0xa2);
+	au8522_writereg(state, AU8522_REG430H, 0xbf);
+	au8522_writereg(state, AU8522_REG431H, 0xcb);
+	au8522_writereg(state, AU8522_REG432H, 0xa1);
+	au8522_writereg(state, AU8522_REG433H, 0x41);
+	au8522_writereg(state, AU8522_REG434H, 0x88);
+	au8522_writereg(state, AU8522_REG435H, 0xc2);
+	au8522_writereg(state, AU8522_REG436H, 0x3c);
+}
+
+static void au8522_setup_cvbs_mode(struct au8522_state *state)
+{
+	/* here we're going to try the pre-programmed route */
+	au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
+			AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS);
+
+	au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00);
+	au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x0e);
+	au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x10);
+
+	au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H,
+			AU8522_INPUT_CONTROL_REG081H_CVBS_CH1);
+
+	setup_decoder_defaults(state, AU8522_INPUT_CONTROL_REG081H_CVBS_CH1);
+
+	au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+			AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+}
+
+static void au8522_setup_cvbs_tuner_mode(struct au8522_state *state)
+{
+	/* here we're going to try the pre-programmed route */
+	au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
+			AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS);
+
+	/* It's not clear why they turn off the PGA before enabling the clamp
+	   control, but the Windows trace does it so we will too... */
+	au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00);
+
+	/* Enable clamping control */
+	au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x0e);
+
+	/* Turn on the PGA */
+	au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x10);
+
+	/* Set input mode to CVBS on channel 4 with SIF audio input enabled */
+	au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H,
+			AU8522_INPUT_CONTROL_REG081H_CVBS_CH4_SIF);
+
+	setup_decoder_defaults(state,
+			       AU8522_INPUT_CONTROL_REG081H_CVBS_CH4_SIF);
+
+	au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+			AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+}
+
+static void au8522_setup_svideo_mode(struct au8522_state *state)
+{
+	au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
+			AU8522_MODULE_CLOCK_CONTROL_REG0A3H_SVIDEO);
+
+	/* Set input to Y on Channe1, C on Channel 3 */
+	au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H,
+			AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13);
+
+	/* Disable clamping control (required for S-video) */
+	au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x00);
+
+	setup_decoder_defaults(state,
+			       AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13);
+
+	au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+			AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static void disable_audio_input(struct au8522_state *state)
+{
+	/* This can probably be optimized */
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x00);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x00);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0x00);
+	au8522_writereg(state, AU8522_I2C_CONTROL_REG1_REG091H, 0x80);
+	au8522_writereg(state, AU8522_I2C_CONTROL_REG0_REG090H, 0x84);
+
+	au8522_writereg(state, AU8522_ENA_USB_REG101H, 0x00);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x7F);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x7F);
+	au8522_writereg(state, AU8522_REG0F9H, AU8522_REG0F9H_AUDIO);
+	au8522_writereg(state, AU8522_AUDIO_MODE_REG0F1H, 0x40);
+
+	au8522_writereg(state, AU8522_GPIO_DATA_REG0E2H, 0x11);
+	msleep(5);
+	au8522_writereg(state, AU8522_GPIO_DATA_REG0E2H, 0x00);
+
+	au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H, 0x04);
+	au8522_writereg(state, AU8522_AUDIOFREQ_REG606H, 0x03);
+	au8522_writereg(state, AU8522_I2S_CTRL_2_REG112H, 0x02);
+
+	au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+			AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+}
+
+/* 0=disable, 1=SIF */
+static void set_audio_input(struct au8522_state *state, int aud_input)
+{
+	int i;
+
+	/* Note that this function needs to be used in conjunction with setting
+	   the input routing via register 0x81 */
+
+	if (aud_input == AU8522_AUDIO_NONE) {
+		disable_audio_input(state);
+		return;
+	}
+
+	if (aud_input != AU8522_AUDIO_SIF) {
+		/* The caller asked for a mode we don't currently support */
+		printk("Unsupported audio mode requested! mode=%d\n",
+		       aud_input);
+		return;
+	}
+
+	/* Load the Audio Decoder Filter Coefficients */
+	for (i = 0; i < NUM_LPFILTER_COEF; i++) {
+		au8522_writereg(state, lpfilter_coef[i].reg_name,
+				lpfilter_coef[i].reg_val[0]);
+	}
+
+	/* Setup audio */
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x00);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x00);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0x00);
+	au8522_writereg(state, AU8522_I2C_CONTROL_REG1_REG091H, 0x80);
+	au8522_writereg(state, AU8522_I2C_CONTROL_REG0_REG090H, 0x84);
+	msleep(150);
+	au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, 0x00);
+	msleep(1);
+	au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, 0x9d);
+	msleep(50);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x7F);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x7F);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0xff);
+	msleep(80);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x7F);
+	au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x7F);
+	au8522_writereg(state, AU8522_REG0F9H, AU8522_REG0F9H_AUDIO);
+	au8522_writereg(state, AU8522_AUDIO_MODE_REG0F1H, 0x82);
+	msleep(70);
+	au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H, 0x09);
+	au8522_writereg(state, AU8522_AUDIOFREQ_REG606H, 0x03);
+	au8522_writereg(state, AU8522_I2S_CTRL_2_REG112H, 0xc2);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int au8522_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct au8522_state *state = to_state(sd);
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		state->brightness = ctrl->value;
+		au8522_writereg(state, AU8522_TVDEC_BRIGHTNESS_REG00AH,
+				ctrl->value - 128);
+		break;
+	case V4L2_CID_CONTRAST:
+		state->contrast = ctrl->value;
+		au8522_writereg(state, AU8522_TVDEC_CONTRAST_REG00BH,
+				ctrl->value);
+		break;
+	case V4L2_CID_SATURATION:
+	case V4L2_CID_HUE:
+	case V4L2_CID_AUDIO_VOLUME:
+	case V4L2_CID_AUDIO_BASS:
+	case V4L2_CID_AUDIO_TREBLE:
+	case V4L2_CID_AUDIO_BALANCE:
+	case V4L2_CID_AUDIO_MUTE:
+		/* Not yet implemented */
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int au8522_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct au8522_state *state = to_state(sd);
+
+	/* Note that we are using values cached in the state structure instead
+	   of reading the registers due to issues with i2c reads not working
+	   properly/consistently yet on the HVR-950q */
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		ctrl->value = state->brightness;
+		break;
+	case V4L2_CID_CONTRAST:
+		ctrl->value = state->contrast;
+		break;
+	case V4L2_CID_SATURATION:
+	case V4L2_CID_HUE:
+	case V4L2_CID_AUDIO_VOLUME:
+	case V4L2_CID_AUDIO_BASS:
+	case V4L2_CID_AUDIO_TREBLE:
+	case V4L2_CID_AUDIO_BALANCE:
+	case V4L2_CID_AUDIO_MUTE:
+		/* Not yet supported */
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int au8522_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
+{
+	switch (fmt->type) {
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int au8522_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
+{
+	switch (fmt->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		/* Not yet implemented */
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int au8522_g_register(struct v4l2_subdev *sd,
+			     struct v4l2_dbg_register *reg)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct au8522_state *state = to_state(sd);
+
+	if (!v4l2_chip_match_i2c_client(client, &reg->match))
+		return -EINVAL;
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	reg->val = au8522_readreg(state, reg->reg & 0xffff);
+	return 0;
+}
+
+static int au8522_s_register(struct v4l2_subdev *sd,
+			     struct v4l2_dbg_register *reg)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct au8522_state *state = to_state(sd);
+
+	if (!v4l2_chip_match_i2c_client(client, &reg->match))
+		return -EINVAL;
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	au8522_writereg(state, reg->reg, reg->val & 0xff);
+	return 0;
+}
+#endif
+
+static int au8522_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct au8522_state *state = to_state(sd);
+
+	if (enable) {
+		au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+				0x01);
+		msleep(1);
+		au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+				AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+	} else {
+		/* This does not completely power down the device
+		   (it only reduces it from around 140ma to 80ma) */
+		au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+				1 << 5);
+	}
+	return 0;
+}
+
+static int au8522_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+	switch (qc->id) {
+	case V4L2_CID_CONTRAST:
+		return v4l2_ctrl_query_fill(qc, 0, 255, 1,
+					    AU8522_TVDEC_CONTRAST_REG00BH_CVBS);
+	case V4L2_CID_BRIGHTNESS:
+		return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
+	case V4L2_CID_SATURATION:
+	case V4L2_CID_HUE:
+		/* Not yet implemented */
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static int au8522_reset(struct v4l2_subdev *sd, u32 val)
+{
+	struct au8522_state *state = to_state(sd);
+
+	au8522_writereg(state, 0xa4, 1 << 5);
+
+	return 0;
+}
+
+static int au8522_s_video_routing(struct v4l2_subdev *sd,
+				  const struct v4l2_routing *route)
+{
+	struct au8522_state *state = to_state(sd);
+
+	au8522_reset(sd, 0);
+
+	/* Jam open the i2c gate to the tuner.  We do this here to handle the
+	   case where the user went into digital mode (causing the gate to be
+	   closed), and then came back to analog mode */
+	au8522_writereg(state, 0x106, 1);
+
+	if (route->input == AU8522_COMPOSITE_CH1) {
+		au8522_setup_cvbs_mode(state);
+	} else if (route->input == AU8522_SVIDEO_CH13) {
+		au8522_setup_svideo_mode(state);
+	} else if (route->input == AU8522_COMPOSITE_CH4_SIF) {
+		au8522_setup_cvbs_tuner_mode(state);
+	} else {
+		printk("au8522 mode not currently supported\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int au8522_s_audio_routing(struct v4l2_subdev *sd,
+				  const struct v4l2_routing *route)
+{
+	struct au8522_state *state = to_state(sd);
+	set_audio_input(state, route->input);
+	return 0;
+}
+
+static int au8522_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+	int val = 0;
+	struct au8522_state *state = to_state(sd);
+	u8 lock_status;
+
+	/* Interrogate the decoder to see if we are getting a real signal */
+	lock_status = au8522_readreg(state, 0x00);
+	if (lock_status == 0xa2)
+		vt->signal = 0x01;
+	else
+		vt->signal = 0x00;
+
+	vt->capability |=
+		V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
+		V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
+
+	val = V4L2_TUNER_SUB_MONO;
+	vt->rxsubchans = val;
+	vt->audmode = V4L2_TUNER_MODE_STEREO;
+	return 0;
+}
+
+static int au8522_g_chip_ident(struct v4l2_subdev *sd,
+			       struct v4l2_dbg_chip_ident *chip)
+{
+	struct au8522_state *state = to_state(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return v4l2_chip_ident_i2c_client(client, chip, state->id, state->rev);
+}
+
+static int au8522_log_status(struct v4l2_subdev *sd)
+{
+	/* FIXME: Add some status info here */
+	return 0;
+}
+
+static int au8522_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+	return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops au8522_core_ops = {
+	.log_status = au8522_log_status,
+	.g_chip_ident = au8522_g_chip_ident,
+	.g_ctrl = au8522_g_ctrl,
+	.s_ctrl = au8522_s_ctrl,
+	.queryctrl = au8522_queryctrl,
+	.reset = au8522_reset,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.g_register = au8522_g_register,
+	.s_register = au8522_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_tuner_ops au8522_tuner_ops = {
+	.g_tuner = au8522_g_tuner,
+};
+
+static const struct v4l2_subdev_audio_ops au8522_audio_ops = {
+	.s_routing = au8522_s_audio_routing,
+};
+
+static const struct v4l2_subdev_video_ops au8522_video_ops = {
+	.s_routing = au8522_s_video_routing,
+	.g_fmt = au8522_g_fmt,
+	.s_fmt = au8522_s_fmt,
+	.s_stream = au8522_s_stream,
+};
+
+static const struct v4l2_subdev_ops au8522_ops = {
+	.core = &au8522_core_ops,
+	.tuner = &au8522_tuner_ops,
+	.audio = &au8522_audio_ops,
+	.video = &au8522_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
+
+static int au8522_probe(struct i2c_client *client,
+			const struct i2c_device_id *did)
+{
+	struct au8522_state *state;
+	struct v4l2_subdev *sd;
+	int instance;
+	struct au8522_config *demod_config;
+
+	/* Check if the adapter supports the needed features */
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_BYTE_DATA)) {
+		return -EIO;
+	}
+
+	/* allocate memory for the internal state */
+	instance = au8522_get_state(&state, client->adapter, client->addr);
+	switch (instance) {
+	case 0:
+		printk("au8522_decoder allocation failed\n");
+		return -EIO;
+	case 1:
+		/* new demod instance */
+		printk("au8522_decoder creating new instance...\n");
+		break;
+	default:
+		/* existing demod instance */
+		printk("au8522_decoder attaching to existing instance...\n");
+		break;
+	}
+
+	demod_config = kzalloc(sizeof(struct au8522_config), GFP_KERNEL);
+	demod_config->demod_address = 0x8e >> 1;
+
+	state->config = demod_config;
+	state->i2c = client->adapter;
+
+	sd = &state->sd;
+	v4l2_i2c_subdev_init(sd, client, &au8522_ops);
+
+	state->c = client;
+	state->vid_input = AU8522_COMPOSITE_CH1;
+	state->aud_input = AU8522_AUDIO_NONE;
+	state->id = 8522;
+	state->rev = 0;
+
+	/* Jam open the i2c gate to the tuner */
+	au8522_writereg(state, 0x106, 1);
+
+	return 0;
+}
+
+static int au8522_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	v4l2_device_unregister_subdev(sd);
+	au8522_release_state(to_state(sd));
+	return 0;
+}
+
+static const struct i2c_device_id au8522_id[] = {
+	{"au8522", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, au8522_id);
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+	.name = "au8522",
+	.driverid = I2C_DRIVERID_AU8522,
+	.command = au8522_command,
+	.probe = au8522_probe,
+	.remove = au8522_remove,
+	.id_table = au8522_id,
+};
diff --git a/drivers/media/dvb/frontends/au8522_priv.h b/drivers/media/dvb/frontends/au8522_priv.h
index 98b09caa2123..f328f2b3ad3d 100644
--- a/drivers/media/dvb/frontends/au8522_priv.h
+++ b/drivers/media/dvb/frontends/au8522_priv.h
@@ -35,6 +35,7 @@
 #include "tuner-i2c.h"
 
 struct au8522_state {
+	struct i2c_client *c;
 	struct i2c_adapter *i2c;
 
 	/* Used for sharing of the state between analog and digital mode */
@@ -51,6 +52,16 @@ struct au8522_state {
 
 	u32 fe_status;
 	unsigned int led_state;
+
+	/* Analog settings */
+	struct v4l2_subdev sd;
+	v4l2_std_id std;
+	int vid_input;
+	int aud_input;
+	u32 id;
+	u32 rev;
+	u8 brightness;
+	u8 contrast;
 };
 
 /* These are routines shared by both the VSB/QAM demodulator and the analog
@@ -63,3 +74,339 @@ int au8522_sleep(struct dvb_frontend *fe);
 int au8522_get_state(struct au8522_state **state, struct i2c_adapter *i2c,
 		     u8 client_address);
 void au8522_release_state(struct au8522_state *state);
+
+/* REGISTERS */
+#define AU8522_INPUT_CONTROL_REG081H			0x081
+#define AU8522_PGA_CONTROL_REG082H			0x082
+#define AU8522_CLAMPING_CONTROL_REG083H			0x083
+
+#define AU8522_MODULE_CLOCK_CONTROL_REG0A3H		0x0A3
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H		0x0A4
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H		0x0A5
+#define AU8522_AGC_CONTROL_RANGE_REG0A6H		0x0A6
+#define AU8522_SYSTEM_GAIN_CONTROL_REG0A7H		0x0A7
+#define AU8522_TUNER_AGC_RF_STOP_REG0A8H  		0x0A8
+#define AU8522_TUNER_AGC_RF_START_REG0A9H		0x0A9
+#define AU8522_TUNER_RF_AGC_DEFAULT_REG0AAH		0x0AA
+#define AU8522_TUNER_AGC_IF_STOP_REG0ABH		0x0AB
+#define AU8522_TUNER_AGC_IF_START_REG0ACH		0x0AC
+#define AU8522_TUNER_AGC_IF_DEFAULT_REG0ADH		0x0AD
+#define AU8522_TUNER_AGC_STEP_REG0AEH			0x0AE
+#define AU8522_TUNER_GAIN_STEP_REG0AFH			0x0AF
+
+/* Receiver registers */
+#define AU8522_FRMREGTHRD1_REG0B0H			0x0B0
+#define AU8522_FRMREGAGC1H_REG0B1H 			0x0B1
+#define AU8522_FRMREGSHIFT1_REG0B2H 			0x0B2
+#define AU8522_TOREGAGC1_REG0B3H 			0x0B3
+#define AU8522_TOREGASHIFT1_REG0B4H 			0x0B4
+#define AU8522_FRMREGBBH_REG0B5H			0x0B5
+#define AU8522_FRMREGBBM_REG0B6H 			0x0B6
+#define AU8522_FRMREGBBL_REG0B7H     			0x0B7
+/* 0xB8 TO 0xD7 are the filter coefficients */
+#define AU8522_FRMREGTHRD2_REG0D8H 			0x0D8
+#define AU8522_FRMREGAGC2H_REG0D9H 			0x0D9
+#define AU8522_TOREGAGC2_REG0DAH 			0x0DA
+#define AU8522_TOREGSHIFT2_REG0DBH 			0x0DB
+#define AU8522_FRMREGPILOTH_REG0DCH			0x0DC
+#define AU8522_FRMREGPILOTM_REG0DDH			0x0DD
+#define AU8522_FRMREGPILOTL_REG0DEH			0x0DE
+#define AU8522_TOREGFREQ_REG0DFH			0x0DF
+
+#define AU8522_RX_PGA_RFOUT_REG0EBH			0x0EB
+#define AU8522_RX_PGA_IFOUT_REG0ECH			0x0EC
+#define AU8522_RX_PGA_PGAOUT_REG0EDH			0x0ED
+
+#define AU8522_CHIP_MODE_REG0FEH			0x0FE
+
+/* I2C bus control registers */
+#define AU8522_I2C_CONTROL_REG0_REG090H    		0x090
+#define AU8522_I2C_CONTROL_REG1_REG091H    		0x091
+#define AU8522_I2C_STATUS_REG092H          		0x092
+#define AU8522_I2C_WR_DATA0_REG093H			0x093
+#define AU8522_I2C_WR_DATA1_REG094H			0x094
+#define AU8522_I2C_WR_DATA2_REG095H			0x095
+#define AU8522_I2C_WR_DATA3_REG096H			0x096
+#define AU8522_I2C_WR_DATA4_REG097H			0x097
+#define AU8522_I2C_WR_DATA5_REG098H			0x098
+#define AU8522_I2C_WR_DATA6_REG099H			0x099
+#define AU8522_I2C_WR_DATA7_REG09AH			0x09A
+#define AU8522_I2C_RD_DATA0_REG09BH			0x09B
+#define AU8522_I2C_RD_DATA1_REG09CH			0x09C
+#define AU8522_I2C_RD_DATA2_REG09DH			0x09D
+#define AU8522_I2C_RD_DATA3_REG09EH			0x09E
+#define AU8522_I2C_RD_DATA4_REG09FH			0x09F
+#define AU8522_I2C_RD_DATA5_REG0A0H			0x0A0
+#define AU8522_I2C_RD_DATA6_REG0A1H			0x0A1
+#define AU8522_I2C_RD_DATA7_REG0A2H			0x0A2
+
+#define AU8522_ENA_USB_REG101H				0x101
+
+#define AU8522_I2S_CTRL_0_REG110H  			0x110
+#define AU8522_I2S_CTRL_1_REG111H 			0x111
+#define AU8522_I2S_CTRL_2_REG112H 			0x112
+
+#define AU8522_FRMREGFFECONTROL_REG121H    		0x121
+#define AU8522_FRMREGDFECONTROL_REG122H    		0x122
+
+#define AU8522_CARRFREQOFFSET0_REG201H 			0x201
+#define AU8522_CARRFREQOFFSET1_REG202H			0x202
+
+#define AU8522_DECIMATION_GAIN_REG21AH			0x21A
+#define AU8522_FRMREGIFSLP_REG21BH 			0x21B
+#define AU8522_FRMREGTHRDL2_REG21CH 			0x21C
+#define AU8522_FRMREGSTEP3DB_REG21DH 			0x21D
+#define AU8522_DAGC_GAIN_ADJUSTMENT_REG21EH		0x21E
+#define AU8522_FRMREGPLLMODE_REG21FH 			0x21F
+#define AU8522_FRMREGCSTHRD_REG220H 			0x220
+#define AU8522_FRMREGCRLOCKDMAX_REG221H 		0x221
+#define AU8522_FRMREGCRPERIODMASK_REG222H 		0x222
+#define AU8522_FRMREGCRLOCK0THH_REG223H 		0x223
+#define AU8522_FRMREGCRLOCK1THH_REG224H 		0x224
+#define AU8522_FRMREGCRLOCK0THL_REG225H 		0x225
+#define AU8522_FRMREGCRLOCK1THL_REG226H 		0x226
+#define AU_FRMREGPLLACQPHASESCL_REG227H			0x227
+#define AU8522_FRMREGFREQFBCTRL_REG228H 		0x228
+
+/* Analog TV Decoder */
+#define AU8522_TVDEC_STATUS_REG000H			0x000
+#define AU8522_TVDEC_INT_STATUS_REG001H			0x001
+#define AU8522_TVDEC_MACROVISION_STATUS_REG002H 	0x002
+#define AU8522_TVDEC_SHARPNESSREG009H			0x009
+#define AU8522_TVDEC_BRIGHTNESS_REG00AH			0x00A
+#define AU8522_TVDEC_CONTRAST_REG00BH			0x00B
+#define AU8522_TVDEC_SATURATION_CB_REG00CH		0x00C
+#define AU8522_TVDEC_SATURATION_CR_REG00DH		0x00D
+#define AU8522_TVDEC_HUE_H_REG00EH			0x00E
+#define AU8522_TVDEC_HUE_L_REG00FH                   	0x00F
+#define AU8522_TVDEC_INT_MASK_REG010H			0x010
+#define AU8522_VIDEO_MODE_REG011H			0x011
+#define AU8522_TVDEC_PGA_REG012H			0x012
+#define AU8522_TVDEC_COMB_MODE_REG015H			0x015
+#define AU8522_REG016H                            	0x016
+#define AU8522_TVDED_DBG_MODE_REG060H			0x060
+#define AU8522_TVDEC_FORMAT_CTRL1_REG061H		0x061
+#define AU8522_TVDEC_FORMAT_CTRL2_REG062H		0x062
+#define AU8522_TVDEC_VCR_DET_LLIM_REG063H		0x063
+#define AU8522_TVDEC_VCR_DET_HLIM_REG064H		0x064
+#define AU8522_TVDEC_COMB_VDIF_THR1_REG065H		0x065
+#define AU8522_TVDEC_COMB_VDIF_THR2_REG066H		0x066
+#define AU8522_TVDEC_COMB_VDIF_THR3_REG067H		0x067
+#define AU8522_TVDEC_COMB_NOTCH_THR_REG068H		0x068
+#define AU8522_TVDEC_COMB_HDIF_THR1_REG069H   		0x069
+#define AU8522_TVDEC_COMB_HDIF_THR2_REG06AH		0x06A
+#define AU8522_TVDEC_COMB_HDIF_THR3_REG06BH   		0x06B
+#define AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH  		0x06C
+#define AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH 		0x06D
+#define AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH       	0x06E
+#define AU8522_TVDEC_UV_SEP_THR_REG06FH  		0x06F
+#define AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H		0x070
+#define AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H		0x073
+#define AU8522_TVDEC_DCAGC_CTRL_REG077H			0x077
+#define AU8522_TVDEC_PIC_START_ADJ_REG078H		0x078
+#define AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H		0x079
+#define AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH	0x07A
+#define AU8522_TVDEC_INTRP_CTRL_REG07BH			0x07B
+#define AU8522_TVDEC_PLL_STATUS_REG07EH			0x07E
+#define AU8522_TVDEC_FSC_FREQ_REG07FH			0x07F
+
+#define AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H		0x0E4
+#define AU8522_TOREGAAGC_REG0E5H			0x0E5
+
+#define AU8522_TVDEC_CHROMA_AGC_REG401H		0x401
+#define AU8522_TVDEC_CHROMA_SFT_REG402H		0x402
+#define AU8522_FILTER_COEF_R410     		0x410
+#define AU8522_FILTER_COEF_R411     		0x411
+#define AU8522_FILTER_COEF_R412     		0x412
+#define AU8522_FILTER_COEF_R413     		0x413
+#define AU8522_FILTER_COEF_R414     		0x414
+#define AU8522_FILTER_COEF_R415     		0x415
+#define AU8522_FILTER_COEF_R416     		0x416
+#define AU8522_FILTER_COEF_R417     		0x417
+#define AU8522_FILTER_COEF_R418     		0x418
+#define AU8522_FILTER_COEF_R419     		0x419
+#define AU8522_FILTER_COEF_R41A     		0x41A
+#define AU8522_FILTER_COEF_R41B     		0x41B
+#define AU8522_FILTER_COEF_R41C     		0x41C
+#define AU8522_FILTER_COEF_R41D     		0x41D
+#define AU8522_FILTER_COEF_R41E     		0x41E
+#define AU8522_FILTER_COEF_R41F     		0x41F
+#define AU8522_FILTER_COEF_R420     		0x420
+#define AU8522_FILTER_COEF_R421     		0x421
+#define AU8522_FILTER_COEF_R422     		0x422
+#define AU8522_FILTER_COEF_R423     		0x423
+#define AU8522_FILTER_COEF_R424     		0x424
+#define AU8522_FILTER_COEF_R425     		0x425
+#define AU8522_FILTER_COEF_R426     		0x426
+#define AU8522_FILTER_COEF_R427     		0x427
+#define AU8522_FILTER_COEF_R428     		0x428
+#define AU8522_FILTER_COEF_R429     		0x429
+#define AU8522_FILTER_COEF_R42A     		0x42A
+#define AU8522_FILTER_COEF_R42B     		0x42B
+#define AU8522_FILTER_COEF_R42C     		0x42C
+#define AU8522_FILTER_COEF_R42D     		0x42D
+
+/* VBI Control Registers */
+#define AU8522_TVDEC_VBI_RX_FIFO_CONTAIN_REG004H  	0x004
+#define AU8522_TVDEC_VBI_TX_FIFO_CONTAIN_REG005H  	0x005
+#define AU8522_TVDEC_VBI_RX_FIFO_READ_REG006H      	0x006
+#define AU8522_TVDEC_VBI_FIFO_STATUS_REG007H       	0x007
+#define AU8522_TVDEC_VBI_CTRL_H_REG017H			0x017
+#define AU8522_TVDEC_VBI_CTRL_L_REG018H			0x018
+#define AU8522_TVDEC_VBI_USER_TOTAL_BITS_REG019H	0x019
+#define AU8522_TVDEC_VBI_USER_TUNIT_H_REG01AH		0x01A
+#define AU8522_TVDEC_VBI_USER_TUNIT_L_REG01BH		0x01B
+#define AU8522_TVDEC_VBI_USER_THRESH1_REG01CH		0x01C
+#define AU8522_TVDEC_VBI_USER_FRAME_PAT2_REG01EH	0x01E
+#define AU8522_TVDEC_VBI_USER_FRAME_PAT1_REG01FH   	0x01F
+#define AU8522_TVDEC_VBI_USER_FRAME_PAT0_REG020H   	0x020
+#define AU8522_TVDEC_VBI_USER_FRAME_MASK2_REG021H 	0x021
+#define AU8522_TVDEC_VBI_USER_FRAME_MASK1_REG022H  	0x022
+#define AU8522_TVDEC_VBI_USER_FRAME_MASK0_REG023H	0x023
+
+#define AU8522_REG071H					0x071
+#define AU8522_REG072H					0x072
+#define AU8522_REG074H					0x074
+#define AU8522_REG075H					0x075
+
+/* Digital Demodulator Registers */
+#define AU8522_FRAME_COUNT0_REG084H			0x084
+#define AU8522_RS_STATUS_G0_REG085H			0x085
+#define AU8522_RS_STATUS_B0_REG086H			0x086
+#define AU8522_RS_STATUS_E_REG087H			0x087
+#define AU8522_DEMODULATION_STATUS_REG088H		0x088
+#define AU8522_TOREGTRESTATUS_REG0E6H			0x0E6
+#define AU8522_TSPORT_CONTROL_REG10BH			0x10B
+#define AU8522_TSTHES_REG10CH				0x10C
+#define AU8522_FRMREGDFEKEEP_REG301H			0x301
+#define AU8522_DFE_AVERAGE_REG302H			0x302
+#define AU8522_FRMREGEQLERRWIN_REG303H			0x303
+#define AU8522_FRMREGFFEKEEP_REG304H			0x304
+#define AU8522_FRMREGDFECONTROL1_REG305H		0x305
+#define AU8522_FRMREGEQLERRLOW_REG306H			0x306
+
+#define AU8522_REG42EH				0x42E
+#define AU8522_REG42FH				0x42F
+#define AU8522_REG430H				0x430
+#define AU8522_REG431H				0x431
+#define AU8522_REG432H				0x432
+#define AU8522_REG433H				0x433
+#define AU8522_REG434H				0x434
+#define AU8522_REG435H				0x435
+#define AU8522_REG436H				0x436
+
+/* GPIO Registers */
+#define AU8522_GPIO_CONTROL_REG0E0H			0x0E0
+#define AU8522_GPIO_STATUS_REG0E1H			0x0E1
+#define AU8522_GPIO_DATA_REG0E2H			0x0E2
+
+/* Audio Control Registers */
+#define AU8522_AUDIOAGC_REG0EEH 			0x0EE
+#define AU8522_AUDIO_STATUS_REG0F0H 			0x0F0
+#define AU8522_AUDIO_MODE_REG0F1H 			0x0F1
+#define AU8522_AUDIO_VOLUME_L_REG0F2H 			0x0F2
+#define AU8522_AUDIO_VOLUME_R_REG0F3H 			0x0F3
+#define AU8522_AUDIO_VOLUME_REG0F4H 			0x0F4
+#define AU8522_FRMREGAUPHASE_REG0F7H 			0x0F7
+#define AU8522_REG0F9H					0x0F9
+
+#define AU8522_AUDIOAGC2_REG605H 			0x605
+#define AU8522_AUDIOFREQ_REG606H 			0x606
+
+
+/**************************************************************/
+
+#define AU8522_INPUT_CONTROL_REG081H_ATSC               	0xC4
+#define AU8522_INPUT_CONTROL_REG081H_ATVRF			0xC4
+#define AU8522_INPUT_CONTROL_REG081H_ATVRF13			0xC4
+#define AU8522_INPUT_CONTROL_REG081H_J83B64             	0xC4
+#define AU8522_INPUT_CONTROL_REG081H_J83B256            	0xC4
+#define AU8522_INPUT_CONTROL_REG081H_CVBS               	0x20
+#define AU8522_INPUT_CONTROL_REG081H_CVBS_CH1			0xA2
+#define AU8522_INPUT_CONTROL_REG081H_CVBS_CH2			0xA0
+#define AU8522_INPUT_CONTROL_REG081H_CVBS_CH3			0x69
+#define AU8522_INPUT_CONTROL_REG081H_CVBS_CH4			0x68
+#define AU8522_INPUT_CONTROL_REG081H_CVBS_CH4_SIF        	0x28
+/* CH1 AS Y,CH3 AS C */
+#define AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13        	0x23
+/* CH2 AS Y,CH4 AS C */
+#define AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH24        	0x20
+#define AU8522_MODULE_CLOCK_CONTROL_REG0A3H_ATSC        	0x0C
+#define AU8522_MODULE_CLOCK_CONTROL_REG0A3H_J83B64      	0x09
+#define AU8522_MODULE_CLOCK_CONTROL_REG0A3H_J83B256    		0x09
+#define AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS        	0x12
+#define AU8522_MODULE_CLOCK_CONTROL_REG0A3H_ATVRF       	0x1A
+#define AU8522_MODULE_CLOCK_CONTROL_REG0A3H_ATVRF13		0x1A
+#define AU8522_MODULE_CLOCK_CONTROL_REG0A3H_SVIDEO		0x02
+
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CLEAR		0x00
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_SVIDEO		0x9C
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS     	0x9D
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_ATSC		0xE8
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_J83B256 		0xCA
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_J83B64  		0xCA
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_ATVRF   		0xDD
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_ATVRF13		0xDD
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_PAL		0xDD
+#define AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_FM		0xDD
+
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_ATSC		0x80
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_J83B256 		0x80
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_J83B64  		0x80
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_DONGLE_ATSC	0x40
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_DONGLE_J83B256	0x40
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_DONGLE_J83B64	0x40
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_DONGLE_CLEAR	0x00
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_ATVRF		0x01
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_ATVRF13		0x01
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_SVIDEO  		0x04
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_CVBS		0x01
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_PWM     		0x03
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_IIS      	0x09
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_PAL		0x01
+#define AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H_FM		0x01
+
+/* STILL NEED TO BE REFACTORED @@@@@@@@@@@@@@ */
+#define AU8522_TVDEC_CONTRAST_REG00BH_CVBS			0x79
+#define AU8522_TVDEC_SATURATION_CB_REG00CH_CVBS			0x80
+#define AU8522_TVDEC_SATURATION_CR_REG00DH_CVBS			0x80
+#define AU8522_TVDEC_HUE_H_REG00EH_CVBS				0x00
+#define AU8522_TVDEC_HUE_L_REG00FH_CVBS				0x00
+#define AU8522_TVDEC_PGA_REG012H_CVBS				0x0F
+#define AU8522_TVDEC_COMB_MODE_REG015H_CVBS			0x00
+#define AU8522_REG016H_CVBS					0x00
+#define AU8522_TVDED_DBG_MODE_REG060H_CVBS			0x00
+#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS			0x0B
+#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS13		0x03
+#define AU8522_TVDEC_FORMAT_CTRL2_REG062H_CVBS13		0x00
+#define AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS			0x19
+#define AU8522_REG0F9H_AUDIO					0x20
+#define AU8522_TVDEC_VCR_DET_HLIM_REG064H_CVBS			0xA7
+#define AU8522_TVDEC_COMB_VDIF_THR1_REG065H_CVBS		0x0A
+#define AU8522_TVDEC_COMB_VDIF_THR2_REG066H_CVBS		0x32
+#define AU8522_TVDEC_COMB_VDIF_THR3_REG067H_CVBS		0x19
+#define AU8522_TVDEC_COMB_NOTCH_THR_REG068H_CVBS		0x23
+#define AU8522_TVDEC_COMB_HDIF_THR1_REG069H_CVBS		0x41
+#define AU8522_TVDEC_COMB_HDIF_THR2_REG06AH_CVBS		0x0A
+#define AU8522_TVDEC_COMB_HDIF_THR3_REG06BH_CVBS		0x32
+#define AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH_CVBS		0x34
+#define AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH_CVBS		0x05
+#define AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH_CVBS		0x6E
+#define AU8522_TVDEC_UV_SEP_THR_REG06FH_CVBS			0x0F
+#define AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H_CVBS		0x80
+#define AU8522_REG071H_CVBS					0x18
+#define AU8522_REG072H_CVBS					0x30
+#define AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H_CVBS		0xF0
+#define AU8522_REG074H_CVBS					0x80
+#define AU8522_REG075H_CVBS					0xF0
+#define AU8522_TVDEC_DCAGC_CTRL_REG077H_CVBS			0xFB
+#define AU8522_TVDEC_PIC_START_ADJ_REG078H_CVBS			0x04
+#define AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H_CVBS		0x00
+#define AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH_CVBS		0x00
+#define AU8522_TVDEC_INTRP_CTRL_REG07BH_CVBS			0xEE
+#define AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H_CVBS			0xFE
+#define AU8522_TOREGAAGC_REG0E5H_CVBS				0x00
+#define AU8522_TVDEC_VBI6A_REG035H_CVBS				0x40
+
+/* Enables Closed captioning */
+#define AU8522_TVDEC_VBI_CTRL_H_REG017H_CCON			0x21
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 1ffc23bc5d1e..17d9af070f06 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -71,6 +71,7 @@
 #define I2C_DRIVERID_VP27SMPX	93	/* Panasonic VP27s tuner internal MPX */
 #define I2C_DRIVERID_M52790 	95      /* Mitsubishi M52790SP/FP AV switch */
 #define I2C_DRIVERID_CS5345	96	/* cs5345 audio processor	*/
+#define I2C_DRIVERID_AU8522	97	/* Auvitek au8522       */
 
 #define I2C_DRIVERID_OV7670 1048	/* Omnivision 7670 camera */
 
-- 
cgit v1.2.3


From d9109bef4b4f501eee94ae68bf876f765d5c6941 Mon Sep 17 00:00:00 2001
From: Devin Heitmueller <dheitmueller@linuxtv.org>
Date: Wed, 11 Mar 2009 03:00:58 -0300
Subject: V4L/DVB (11076): au0828: make g_chip_ident call work properly

Make the g_chip_ident call work for the au0828/au8522.  Discovered when testing
with the v4l2_compliance tool

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
[mchehab@redhat.com: fix merge conflict, due to a path change for analog demod]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/dvb/frontends/au8522_decoder.c | 1 +
 drivers/media/video/au0828/au0828-video.c    | 8 ++++++++
 include/media/v4l2-chip-ident.h              | 3 +++
 3 files changed, 12 insertions(+)

(limited to 'include')

diff --git a/drivers/media/dvb/frontends/au8522_decoder.c b/drivers/media/dvb/frontends/au8522_decoder.c
index e2927c145cd8..564636389bae 100644
--- a/drivers/media/dvb/frontends/au8522_decoder.c
+++ b/drivers/media/dvb/frontends/au8522_decoder.c
@@ -636,6 +636,7 @@ static int au8522_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 		break;
 	}
 
+	qc->type = 0;
 	return -EINVAL;
 }
 
diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c
index 0dd138370b62..ce80882d45e2 100644
--- a/drivers/media/video/au0828/au0828-video.c
+++ b/drivers/media/video/au0828/au0828-video.c
@@ -1348,7 +1348,15 @@ static int vidioc_g_chip_ident(struct file *file, void *priv,
 	chip->ident = V4L2_IDENT_NONE;
 	chip->revision = 0;
 
+	if (v4l2_chip_match_host(&chip->match)) {
+		chip->ident = V4L2_IDENT_AU0828;
+		return 0;
+	}
+
 	au0828_call_i2c_clients(dev, VIDIOC_DBG_G_CHIP_IDENT, chip);
+	if (chip->ident == V4L2_IDENT_NONE)
+		return -EINVAL;
+
 	return 0;
 }
 
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index 43684f105fd8..ca2aa6d7e386 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -70,6 +70,9 @@ enum {
 	V4L2_IDENT_CX23416 = 416,
 	V4L2_IDENT_CX23418 = 418,
 
+	/* module au0828 */
+	V4L2_IDENT_AU0828 = 828,
+
 	/* module indycam: just ident 2000 */
 	V4L2_IDENT_INDYCAM = 2000,
 
-- 
cgit v1.2.3


From 9aba42efe85bc7a55e3fed0747ce14abc9ee96e7 Mon Sep 17 00:00:00 2001
From: Janne Grunau <j@jannau.net>
Date: Wed, 18 Mar 2009 18:10:04 -0300
Subject: V4L/DVB (11096): V4L2 Driver for the Hauppauge HD PVR usb capture
 device

The device encodes component video up to 1080i to a MPEG-TS stream with
H.264 video and stereo AAC audio. Newer firmwares accept also AC3
(up to 5.1) audio over optical SPDIF without reencoding.
Firmware upgrade is unimplemeted but rather unimportant since
the firmware sits on a flash chip.

The I2C adapter to drive the integrated infrared receiver/sender is
currently disabled due to a conflict with cx18-based devices.

Tested-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/Kconfig               |    2 +
 drivers/media/video/Makefile              |    2 +
 drivers/media/video/hdpvr/Kconfig         |   10 +
 drivers/media/video/hdpvr/Makefile        |    7 +
 drivers/media/video/hdpvr/hdpvr-control.c |  201 +++++
 drivers/media/video/hdpvr/hdpvr-core.c    |  439 +++++++++++
 drivers/media/video/hdpvr/hdpvr-i2c.c     |  145 ++++
 drivers/media/video/hdpvr/hdpvr-video.c   | 1228 +++++++++++++++++++++++++++++
 drivers/media/video/hdpvr/hdpvr.h         |  298 +++++++
 include/linux/i2c-id.h                    |    1 +
 10 files changed, 2333 insertions(+)
 create mode 100644 drivers/media/video/hdpvr/Kconfig
 create mode 100644 drivers/media/video/hdpvr/Makefile
 create mode 100644 drivers/media/video/hdpvr/hdpvr-control.c
 create mode 100644 drivers/media/video/hdpvr/hdpvr-core.c
 create mode 100644 drivers/media/video/hdpvr/hdpvr-i2c.c
 create mode 100644 drivers/media/video/hdpvr/hdpvr-video.c
 create mode 100644 drivers/media/video/hdpvr/hdpvr.h

(limited to 'include')

diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index d5ddb819a961..3f85b9e63754 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -789,6 +789,8 @@ source "drivers/media/video/gspca/Kconfig"
 
 source "drivers/media/video/pvrusb2/Kconfig"
 
+source "drivers/media/video/hdpvr/Kconfig"
+
 source "drivers/media/video/em28xx/Kconfig"
 
 source "drivers/media/video/usbvision/Kconfig"
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index 08a0675fea34..b9046744463b 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -119,6 +119,8 @@ obj-$(CONFIG_USB_PWC)           += pwc/
 obj-$(CONFIG_USB_ZC0301)        += zc0301/
 obj-$(CONFIG_USB_GSPCA)         += gspca/
 
+obj-$(CONFIG_VIDEO_HDPVR)	+= hdpvr/
+
 obj-$(CONFIG_USB_IBMCAM)        += usbvideo/
 obj-$(CONFIG_USB_KONICAWC)      += usbvideo/
 obj-$(CONFIG_USB_VICAM)         += usbvideo/
diff --git a/drivers/media/video/hdpvr/Kconfig b/drivers/media/video/hdpvr/Kconfig
new file mode 100644
index 000000000000..de247f3c7d05
--- /dev/null
+++ b/drivers/media/video/hdpvr/Kconfig
@@ -0,0 +1,10 @@
+
+config VIDEO_HDPVR
+	tristate "Hauppauge HD PVR support"
+	depends on VIDEO_DEV
+	---help---
+	  This is a video4linux driver for Hauppauge's HD PVR USB device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called hdpvr
+
diff --git a/drivers/media/video/hdpvr/Makefile b/drivers/media/video/hdpvr/Makefile
new file mode 100644
index 000000000000..79ad2e16cb8f
--- /dev/null
+++ b/drivers/media/video/hdpvr/Makefile
@@ -0,0 +1,7 @@
+hdpvr-objs	:= hdpvr-control.o hdpvr-core.o hdpvr-i2c.o hdpvr-video.o
+
+obj-$(CONFIG_VIDEO_HDPVR) += hdpvr.o
+
+EXTRA_CFLAGS += -Idrivers/media/video
+
+EXTRA_CFLAGS += $(extra-cflags-y) $(extra-cflags-m)
diff --git a/drivers/media/video/hdpvr/hdpvr-control.c b/drivers/media/video/hdpvr/hdpvr-control.c
new file mode 100644
index 000000000000..ecf02c621f13
--- /dev/null
+++ b/drivers/media/video/hdpvr/hdpvr-control.c
@@ -0,0 +1,201 @@
+/*
+ * Hauppage HD PVR USB driver - video 4 linux 2 interface
+ *
+ * Copyright (C) 2008      Janne Grunau (j@jannau.net)
+ *
+ *	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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/mutex.h>
+
+#include <linux/videodev2.h>
+
+#include <media/v4l2-common.h>
+
+#include "hdpvr.h"
+
+
+int hdpvr_config_call(struct hdpvr_device *dev, uint value, u8 valbuf)
+{
+	int ret;
+	char request_type = 0x38, snd_request = 0x01;
+
+	msleep(10);
+
+	mutex_lock(&dev->usbc_mutex);
+	dev->usbc_buf[0] = valbuf;
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      snd_request, 0x00 | request_type,
+			      value, CTRL_DEFAULT_INDEX,
+			      dev->usbc_buf, 1, 10000);
+
+	mutex_unlock(&dev->usbc_mutex);
+	dev_dbg(&dev->udev->dev,
+		"config call request for value 0x%x returned %d\n", value,
+		ret);
+
+	return ret < 0 ? ret : 0;
+}
+
+struct hdpvr_video_info *get_video_info(struct hdpvr_device *dev)
+{
+	struct hdpvr_video_info *vidinf = NULL;
+#ifdef HDPVR_DEBUG
+	char print_buf[15];
+#endif
+	int ret;
+
+	vidinf = kzalloc(sizeof(struct hdpvr_video_info), GFP_KERNEL);
+	if (!vidinf) {
+		dev_err(&dev->udev->dev, "out of memory");
+		goto err;
+	}
+
+	mutex_lock(&dev->usbc_mutex);
+	ret = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      0x81, 0x80 | 0x38,
+			      0x1400, 0x0003,
+			      dev->usbc_buf, 5,
+			      1000);
+	if (ret == 5) {
+		vidinf->width	= dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
+		vidinf->height	= dev->usbc_buf[3] << 8 | dev->usbc_buf[2];
+		vidinf->fps	= dev->usbc_buf[4];
+	}
+
+#ifdef HDPVR_DEBUG
+	if (hdpvr_debug & MSG_INFO) {
+		hex_dump_to_buffer(dev->usbc_buf, 5, 16, 1, print_buf,
+				   sizeof(print_buf), 0);
+		dev_dbg(&dev->udev->dev, "get video info returned: %d, %s\n",
+			ret, print_buf);
+	}
+#endif
+	mutex_unlock(&dev->usbc_mutex);
+
+	if (!vidinf->width || !vidinf->height || !vidinf->fps) {
+		kfree(vidinf);
+		vidinf = NULL;
+	}
+err:
+	return vidinf;
+}
+
+int get_input_lines_info(struct hdpvr_device *dev)
+{
+#ifdef HDPVR_DEBUG
+	char print_buf[9];
+#endif
+	int ret, lines;
+
+	mutex_lock(&dev->usbc_mutex);
+	ret = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      0x81, 0x80 | 0x38,
+			      0x1800, 0x0003,
+			      dev->usbc_buf, 3,
+			      1000);
+
+#ifdef HDPVR_DEBUG
+	if (hdpvr_debug & MSG_INFO) {
+		hex_dump_to_buffer(dev->usbc_buf, 3, 16, 1, print_buf,
+				   sizeof(print_buf), 0);
+		dev_dbg(&dev->udev->dev,
+			"get input lines info returned: %d, %s\n", ret,
+			print_buf);
+	}
+#endif
+	lines = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
+	mutex_unlock(&dev->usbc_mutex);
+	return lines;
+}
+
+
+int hdpvr_set_bitrate(struct hdpvr_device *dev)
+{
+	int ret;
+
+	mutex_lock(&dev->usbc_mutex);
+	memset(dev->usbc_buf, 0, 4);
+	dev->usbc_buf[0] = dev->options.bitrate;
+	dev->usbc_buf[2] = dev->options.peak_bitrate;
+
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0x01, 0x38, CTRL_BITRATE_VALUE,
+			      CTRL_DEFAULT_INDEX, dev->usbc_buf, 4, 1000);
+	mutex_unlock(&dev->usbc_mutex);
+
+	return ret;
+}
+
+int hdpvr_set_audio(struct hdpvr_device *dev, u8 input,
+		    enum v4l2_mpeg_audio_encoding codec)
+{
+	int ret = 0;
+
+	if (dev->flags & HDPVR_FLAG_AC3_CAP) {
+		mutex_lock(&dev->usbc_mutex);
+		memset(dev->usbc_buf, 0, 2);
+		dev->usbc_buf[0] = input;
+		if (codec == V4L2_MPEG_AUDIO_ENCODING_AAC)
+			dev->usbc_buf[1] = 0;
+		else if (codec == V4L2_MPEG_AUDIO_ENCODING_AC3)
+			dev->usbc_buf[1] = 1;
+		else {
+			mutex_unlock(&dev->usbc_mutex);
+			dev_err(&dev->udev->dev, "invalid audio codec %d\n",
+				codec);
+			ret = -EINVAL;
+			goto error;
+		}
+
+		ret = usb_control_msg(dev->udev,
+				      usb_sndctrlpipe(dev->udev, 0),
+				      0x01, 0x38, CTRL_AUDIO_INPUT_VALUE,
+				      CTRL_DEFAULT_INDEX, dev->usbc_buf, 2,
+				      1000);
+		mutex_unlock(&dev->usbc_mutex);
+		if (ret == 2)
+			ret = 0;
+	} else
+		ret = hdpvr_config_call(dev, CTRL_AUDIO_INPUT_VALUE,
+					dev->options.audio_input+1);
+error:
+	return ret;
+}
+
+int hdpvr_set_options(struct hdpvr_device *dev)
+{
+       hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, dev->options.video_std);
+
+       hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE,
+			 dev->options.video_input+1);
+
+       hdpvr_set_audio(dev, dev->options.audio_input+1,
+		       dev->options.audio_codec);
+
+       hdpvr_set_bitrate(dev);
+       hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
+			 dev->options.bitrate_mode);
+       hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, dev->options.gop_mode);
+
+       hdpvr_config_call(dev, CTRL_BRIGHTNESS, dev->options.brightness);
+       hdpvr_config_call(dev, CTRL_CONTRAST,   dev->options.contrast);
+       hdpvr_config_call(dev, CTRL_HUE,        dev->options.hue);
+       hdpvr_config_call(dev, CTRL_SATURATION, dev->options.saturation);
+       hdpvr_config_call(dev, CTRL_SHARPNESS,  dev->options.sharpness);
+
+       return 0;
+}
diff --git a/drivers/media/video/hdpvr/hdpvr-core.c b/drivers/media/video/hdpvr/hdpvr-core.c
new file mode 100644
index 000000000000..e7300b570bb7
--- /dev/null
+++ b/drivers/media/video/hdpvr/hdpvr-core.c
@@ -0,0 +1,439 @@
+/*
+ * Hauppage HD PVR USB driver
+ *
+ * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2008      Janne Grunau (j@jannau.net)
+ * Copyright (C) 2008      John Poet
+ *
+ *	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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/uaccess.h>
+#include <asm/atomic.h>
+#include <linux/usb.h>
+#include <linux/mutex.h>
+#include <linux/i2c.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-common.h>
+
+#include "hdpvr.h"
+
+static int video_nr[HDPVR_MAX] = {[0 ... (HDPVR_MAX - 1)] = UNSET};
+module_param_array(video_nr, int, NULL, 0);
+MODULE_PARM_DESC(video_nr, "video device number (-1=Auto)");
+
+/* holds the number of currently registered devices */
+static atomic_t dev_nr = ATOMIC_INIT(-1);
+
+int hdpvr_debug;
+module_param(hdpvr_debug, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(hdpvr_debug, "enable debugging output");
+
+uint default_video_input = HDPVR_VIDEO_INPUTS;
+module_param(default_video_input, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(default_video_input, "default video input: 0=Component / "
+		 "1=S-Video / 2=Composite");
+
+uint default_audio_input = HDPVR_AUDIO_INPUTS;
+module_param(default_audio_input, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(default_audio_input, "default audio input: 0=RCA back / "
+		 "1=RCA front / 2=S/PDIF");
+
+static int boost_audio;
+module_param(boost_audio, bool, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(boost_audio, "boost the audio signal");
+
+
+/* table of devices that work with this driver */
+static struct usb_device_id hdpvr_table[] = {
+	{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID) },
+	{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID1) },
+	{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID2) },
+	{ }					/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, hdpvr_table);
+
+
+void hdpvr_delete(struct hdpvr_device *dev)
+{
+	hdpvr_free_buffers(dev);
+
+	if (dev->video_dev)
+		video_device_release(dev->video_dev);
+
+	usb_put_dev(dev->udev);
+}
+
+static void challenge(u8 *bytes)
+{
+	u64 *i64P, tmp64;
+	uint i, idx;
+
+	for (idx = 0; idx < 32; ++idx) {
+
+		if (idx & 0x3)
+			bytes[(idx >> 3) + 3] = bytes[(idx >> 2) & 0x3];
+
+		switch (idx & 0x3) {
+		case 0x3:
+			bytes[2] += bytes[3] * 4 + bytes[4] + bytes[5];
+			bytes[4] += bytes[(idx & 0x1) * 2] * 9 + 9;
+			break;
+		case 0x1:
+			bytes[0] *= 8;
+			bytes[0] += 7*idx + 4;
+			bytes[6] += bytes[3] * 3;
+			break;
+		case 0x0:
+			bytes[3 - (idx >> 3)] = bytes[idx >> 2];
+			bytes[5] += bytes[6] * 3;
+			for (i = 0; i < 3; i++)
+				bytes[3] *= bytes[3] + 1;
+			break;
+		case 0x2:
+			for (i = 0; i < 3; i++)
+				bytes[1] *= bytes[6] + 1;
+			for (i = 0; i < 3; i++) {
+				i64P = (u64 *)bytes;
+				tmp64 = le64_to_cpup(i64P);
+				tmp64 <<= bytes[7] & 0x0f;
+				*i64P += cpu_to_le64(tmp64);
+			}
+			break;
+		}
+	}
+}
+
+/* try to init the device like the windows driver */
+static int device_authorization(struct hdpvr_device *dev)
+{
+
+	int ret, retval = -ENOMEM;
+	char request_type = 0x38, rcv_request = 0x81;
+	char *response;
+#ifdef HDPVR_DEBUG
+	size_t buf_size = 46;
+	char *print_buf = kzalloc(5*buf_size+1, GFP_KERNEL);
+	if (!print_buf) {
+		dev_err(&dev->udev->dev, "Out of memory");
+		goto error;
+	}
+#endif
+
+	mutex_lock(&dev->usbc_mutex);
+	ret = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      rcv_request, 0x80 | request_type,
+			      0x0400, 0x0003,
+			      dev->usbc_buf, 46,
+			      10000);
+	if (ret != 46) {
+		dev_err(&dev->udev->dev,
+			"unexpected answer of status request, len %d", ret);
+		goto error;
+	}
+#ifdef HDPVR_DEBUG
+	else {
+		hex_dump_to_buffer(dev->usbc_buf, 46, 16, 1, print_buf,
+				   sizeof(print_buf), 0);
+		dev_dbg(&dev->udev->dev,
+			"Status request returned, len %d: %s\n",
+			ret, print_buf);
+	}
+#endif
+	if (dev->usbc_buf[1] == HDPVR_FIRMWARE_VERSION) {
+		dev->flags &= ~HDPVR_FLAG_AC3_CAP;
+	} else if (dev->usbc_buf[1] == HDPVR_FIRMWARE_VERSION_AC3) {
+		dev->flags |= HDPVR_FLAG_AC3_CAP;
+	} else if (dev->usbc_buf[1] > HDPVR_FIRMWARE_VERSION_AC3) {
+		dev_notice(&dev->udev->dev, "untested firmware version 0x%x, "
+			   "the driver might not work\n", dev->usbc_buf[1]);
+		dev->flags |= HDPVR_FLAG_AC3_CAP;
+	} else {
+		dev_err(&dev->udev->dev, "unknown firmware version 0x%x\n",
+			dev->usbc_buf[1]);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	response = dev->usbc_buf+38;
+#ifdef HDPVR_DEBUG
+	hex_dump_to_buffer(response, 8, 16, 1, print_buf, sizeof(print_buf), 0);
+	dev_dbg(&dev->udev->dev, "challenge: %s\n", print_buf);
+#endif
+	challenge(response);
+#ifdef HDPVR_DEBUG
+	hex_dump_to_buffer(response, 8, 16, 1, print_buf, sizeof(print_buf), 0);
+	dev_dbg(&dev->udev->dev, " response: %s\n", print_buf);
+#endif
+
+	msleep(100);
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0xd1, 0x00 | request_type,
+			      0x0000, 0x0000,
+			      response, 8,
+			      10000);
+	dev_dbg(&dev->udev->dev, "magic request returned %d\n", ret);
+	mutex_unlock(&dev->usbc_mutex);
+
+	retval = ret != 8;
+error:
+	return retval;
+}
+
+static int hdpvr_device_init(struct hdpvr_device *dev)
+{
+	int ret;
+	u8 *buf;
+	struct hdpvr_video_info *vidinf;
+
+	if (device_authorization(dev))
+		return -EACCES;
+
+	/* default options for init */
+	hdpvr_set_options(dev);
+
+	/* set filter options */
+	mutex_lock(&dev->usbc_mutex);
+	buf = dev->usbc_buf;
+	buf[0] = 0x03; buf[1] = 0x03; buf[2] = 0x00; buf[3] = 0x00;
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0x01, 0x38,
+			      CTRL_LOW_PASS_FILTER_VALUE, CTRL_DEFAULT_INDEX,
+			      buf, 4,
+			      1000);
+	dev_dbg(&dev->udev->dev, "control request returned %d\n", ret);
+	mutex_unlock(&dev->usbc_mutex);
+
+	vidinf = get_video_info(dev);
+	if (!vidinf)
+		dev_dbg(&dev->udev->dev,
+			"no valid video signal or device init failed\n");
+	else
+		kfree(vidinf);
+
+	/* enable fan and bling leds */
+	mutex_lock(&dev->usbc_mutex);
+	buf[0] = 0x1;
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0xd4, 0x38, 0, 0, buf, 1,
+			      1000);
+	dev_dbg(&dev->udev->dev, "control request returned %d\n", ret);
+
+	/* boost analog audio */
+	buf[0] = boost_audio;
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0xd5, 0x38, 0, 0, buf, 1,
+			      1000);
+	dev_dbg(&dev->udev->dev, "control request returned %d\n", ret);
+	mutex_unlock(&dev->usbc_mutex);
+
+	dev->status = STATUS_IDLE;
+	return 0;
+}
+
+static const struct hdpvr_options hdpvr_default_options = {
+	.video_std	= HDPVR_60HZ,
+	.video_input	= HDPVR_COMPONENT,
+	.audio_input	= HDPVR_RCA_BACK,
+	.bitrate	= 65, /* 6 mbps */
+	.peak_bitrate	= 90, /* 9 mbps */
+	.bitrate_mode	= HDPVR_CONSTANT,
+	.gop_mode	= HDPVR_SIMPLE_IDR_GOP,
+	.audio_codec	= V4L2_MPEG_AUDIO_ENCODING_AAC,
+	.brightness	= 0x86,
+	.contrast	= 0x80,
+	.hue		= 0x80,
+	.saturation	= 0x80,
+	.sharpness	= 0x80,
+};
+
+static int hdpvr_probe(struct usb_interface *interface,
+		       const struct usb_device_id *id)
+{
+	struct hdpvr_device *dev;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	size_t buffer_size;
+	int i;
+	int retval = -ENOMEM;
+
+	/* allocate memory for our device state and initialize it */
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		err("Out of memory");
+		goto error;
+	}
+	mutex_init(&dev->io_mutex);
+	mutex_init(&dev->i2c_mutex);
+	mutex_init(&dev->usbc_mutex);
+	dev->usbc_buf = kmalloc(64, GFP_KERNEL);
+	if (!dev->usbc_buf) {
+		dev_err(&dev->udev->dev, "Out of memory");
+		goto error;
+	}
+
+	init_waitqueue_head(&dev->wait_buffer);
+	init_waitqueue_head(&dev->wait_data);
+
+	dev->workqueue = create_singlethread_workqueue("hdpvr_buffer");
+	if (!dev->workqueue)
+		goto error;
+
+	/* init video transfer queues */
+	INIT_LIST_HEAD(&dev->free_buff_list);
+	INIT_LIST_HEAD(&dev->rec_buff_list);
+
+	dev->options = hdpvr_default_options;
+
+	if (default_video_input < HDPVR_VIDEO_INPUTS)
+		dev->options.video_input = default_video_input;
+
+	if (default_audio_input < HDPVR_AUDIO_INPUTS)
+		dev->options.audio_input = default_audio_input;
+
+	dev->udev = usb_get_dev(interface_to_usbdev(interface));
+
+	/* set up the endpoint information */
+	/* use only the first bulk-in and bulk-out endpoints */
+	iface_desc = interface->cur_altsetting;
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+		endpoint = &iface_desc->endpoint[i].desc;
+
+		if (!dev->bulk_in_endpointAddr &&
+		    usb_endpoint_is_bulk_in(endpoint)) {
+			/* USB interface description is buggy, reported max
+			 * packet size is 512 bytes, windows driver uses 8192 */
+			buffer_size = 8192;
+			dev->bulk_in_size = buffer_size;
+			dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
+		}
+
+	}
+	if (!dev->bulk_in_endpointAddr) {
+		err("Could not find bulk-in endpoint");
+		goto error;
+	}
+
+	/* init the device */
+	if (hdpvr_device_init(dev)) {
+		err("device init failed");
+		goto error;
+	}
+
+	mutex_lock(&dev->io_mutex);
+	if (hdpvr_alloc_buffers(dev, NUM_BUFFERS)) {
+		err("allocating transfer buffers failed");
+		goto error;
+	}
+	mutex_unlock(&dev->io_mutex);
+
+	if (hdpvr_register_videodev(dev,
+				    video_nr[atomic_inc_return(&dev_nr)])) {
+		err("registering videodev failed");
+		goto error;
+	}
+
+
+	/* save our data pointer in this interface device */
+	usb_set_intfdata(interface, dev);
+
+	/* let the user know what node this device is now attached to */
+	v4l2_info(dev->video_dev, "device now attached to /dev/video%d\n",
+		  dev->video_dev->minor);
+	return 0;
+
+error:
+	if (dev) {
+		mutex_unlock(&dev->io_mutex);
+		/* this frees allocated memory */
+		hdpvr_delete(dev);
+	}
+	return retval;
+}
+
+static void hdpvr_disconnect(struct usb_interface *interface)
+{
+	struct hdpvr_device *dev;
+	int minor;
+
+	dev = usb_get_intfdata(interface);
+	usb_set_intfdata(interface, NULL);
+
+	minor = dev->video_dev->minor;
+
+	/* prevent more I/O from starting and stop any ongoing */
+	mutex_lock(&dev->io_mutex);
+	dev->status = STATUS_DISCONNECTED;
+	video_unregister_device(dev->video_dev);
+	wake_up_interruptible(&dev->wait_data);
+	wake_up_interruptible(&dev->wait_buffer);
+	msleep(100);
+	flush_workqueue(dev->workqueue);
+	hdpvr_cancel_queue(dev);
+	destroy_workqueue(dev->workqueue);
+	mutex_unlock(&dev->io_mutex);
+
+	/* deregister I2C adapter */
+	mutex_lock(&dev->i2c_mutex);
+	if (dev->i2c_adapter)
+		i2c_del_adapter(dev->i2c_adapter);
+	kfree(dev->i2c_adapter);
+	dev->i2c_adapter = NULL;
+	mutex_unlock(&dev->i2c_mutex);
+
+	atomic_dec(&dev_nr);
+
+	printk(KERN_INFO "Hauppauge HD PVR: device /dev/video%d disconnected\n",
+	       minor);
+
+	kfree(dev->usbc_buf);
+	kfree(dev);
+}
+
+
+static struct usb_driver hdpvr_usb_driver = {
+	.name =		"hdpvr",
+	.probe =	hdpvr_probe,
+	.disconnect =	hdpvr_disconnect,
+	.id_table =	hdpvr_table,
+};
+
+static int __init hdpvr_init(void)
+{
+	int result;
+
+	/* register this driver with the USB subsystem */
+	result = usb_register(&hdpvr_usb_driver);
+	if (result)
+		err("usb_register failed. Error number %d", result);
+
+	return result;
+}
+
+static void __exit hdpvr_exit(void)
+{
+	/* deregister this driver with the USB subsystem */
+	usb_deregister(&hdpvr_usb_driver);
+}
+
+module_init(hdpvr_init);
+module_exit(hdpvr_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Janne Grunau");
+MODULE_DESCRIPTION("Hauppauge HD PVR driver");
diff --git a/drivers/media/video/hdpvr/hdpvr-i2c.c b/drivers/media/video/hdpvr/hdpvr-i2c.c
new file mode 100644
index 000000000000..35096dec2411
--- /dev/null
+++ b/drivers/media/video/hdpvr/hdpvr-i2c.c
@@ -0,0 +1,145 @@
+
+/*
+ * Hauppage HD PVR USB driver
+ *
+ * Copyright (C) 2008      Janne Grunau (j@jannau.net)
+ *
+ *	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.
+ *
+ */
+
+#include <linux/i2c.h>
+
+#include "hdpvr.h"
+
+#define CTRL_READ_REQUEST	0xb8
+#define CTRL_WRITE_REQUEST	0x38
+
+#define REQTYPE_I2C_READ	0xb1
+#define REQTYPE_I2C_WRITE	0xb0
+#define REQTYPE_I2C_WRITE_STATT	0xd0
+
+static int hdpvr_i2c_read(struct hdpvr_device *dev, unsigned char addr,
+			  char *data, int len)
+{
+	int ret;
+	char *buf = kmalloc(len, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      REQTYPE_I2C_READ, CTRL_READ_REQUEST,
+			      0x100|addr, 0, buf, len, 1000);
+
+	if (ret == len) {
+		memcpy(data, buf, len);
+		ret = 0;
+	} else if (ret >= 0)
+		ret = -EIO;
+
+	kfree(buf);
+
+	return ret;
+}
+
+static int hdpvr_i2c_write(struct hdpvr_device *dev, unsigned char addr,
+			   char *data, int len)
+{
+	int ret;
+	char *buf = kmalloc(len, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	memcpy(buf, data, len);
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      REQTYPE_I2C_WRITE, CTRL_WRITE_REQUEST,
+			      0x100|addr, 0, buf, len, 1000);
+
+	if (ret < 0)
+		goto error;
+
+	ret = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      REQTYPE_I2C_WRITE_STATT, CTRL_READ_REQUEST,
+			      0, 0, buf, 2, 1000);
+
+	if (ret == 2)
+		ret = 0;
+	else if (ret >= 0)
+		ret = -EIO;
+
+error:
+	kfree(buf);
+	return ret;
+}
+
+static int hdpvr_transfer(struct i2c_adapter *i2c_adapter, struct i2c_msg *msgs,
+			  int num)
+{
+	struct hdpvr_device *dev = i2c_get_adapdata(i2c_adapter);
+	int retval = 0, i, addr;
+
+	if (num <= 0)
+		return 0;
+
+	mutex_lock(&dev->i2c_mutex);
+
+	for (i = 0; i < num && !retval; i++) {
+		addr = msgs[i].addr << 1;
+
+		if (msgs[i].flags & I2C_M_RD)
+			retval = hdpvr_i2c_read(dev, addr, msgs[i].buf,
+						msgs[i].len);
+		else
+			retval = hdpvr_i2c_write(dev, addr, msgs[i].buf,
+						 msgs[i].len);
+	}
+
+	mutex_unlock(&dev->i2c_mutex);
+
+	return retval ? retval : num;
+}
+
+static u32 hdpvr_functionality(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static struct i2c_algorithm hdpvr_algo = {
+	.master_xfer   = hdpvr_transfer,
+	.functionality = hdpvr_functionality,
+};
+
+int hdpvr_register_i2c_adapter(struct hdpvr_device *dev)
+{
+	struct i2c_adapter *i2c_adap;
+	int retval = -ENOMEM;
+
+	i2c_adap = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
+	if (i2c_adap == NULL)
+		goto error;
+
+	strlcpy(i2c_adap->name, "Hauppauge HD PVR I2C",
+		sizeof(i2c_adap->name));
+	i2c_adap->algo  = &hdpvr_algo;
+	i2c_adap->class = I2C_CLASS_TV_ANALOG;
+	i2c_adap->id    = I2C_HW_B_HDPVR;
+	i2c_adap->owner = THIS_MODULE;
+	i2c_adap->dev.parent = &dev->udev->dev;
+
+	i2c_set_adapdata(i2c_adap, dev);
+
+	retval = i2c_add_adapter(i2c_adap);
+
+	if (!retval)
+		dev->i2c_adapter = i2c_adap;
+	else
+		kfree(i2c_adap);
+
+error:
+	return retval;
+}
diff --git a/drivers/media/video/hdpvr/hdpvr-video.c b/drivers/media/video/hdpvr/hdpvr-video.c
new file mode 100644
index 000000000000..ee481495e4fc
--- /dev/null
+++ b/drivers/media/video/hdpvr/hdpvr-video.c
@@ -0,0 +1,1228 @@
+/*
+ * Hauppage HD PVR USB driver - video 4 linux 2 interface
+ *
+ * Copyright (C) 2008      Janne Grunau (j@jannau.net)
+ *
+ *	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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/mutex.h>
+#include <linux/version.h>
+#include <linux/workqueue.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include "hdpvr.h"
+
+#define BULK_URB_TIMEOUT 1250 /* 1.25 seconds */
+
+struct hdpvr_fh {
+	struct hdpvr_device	*dev;
+};
+
+static uint list_size(struct list_head *list)
+{
+	struct list_head *tmp;
+	uint count = 0;
+
+	list_for_each(tmp, list) {
+		count++;
+	}
+
+	return count;
+}
+
+/*=========================================================================*/
+/* urb callback */
+static void hdpvr_read_bulk_callback(struct urb *urb)
+{
+	struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context;
+	struct hdpvr_device *dev = buf->dev;
+
+	/* marking buffer as received and wake waiting */
+	buf->status = BUFSTAT_READY;
+	wake_up_interruptible(&dev->wait_data);
+}
+
+/*=========================================================================*/
+/* bufffer bits */
+
+/* function expects dev->io_mutex to be hold by caller */
+int hdpvr_cancel_queue(struct hdpvr_device *dev)
+{
+	struct hdpvr_buffer *buf;
+
+	list_for_each_entry(buf, &dev->rec_buff_list, buff_list) {
+		usb_kill_urb(buf->urb);
+		buf->status = BUFSTAT_AVAILABLE;
+	}
+
+	list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev);
+
+	return 0;
+}
+
+static int hdpvr_free_queue(struct list_head *q)
+{
+	struct list_head *tmp;
+	struct list_head *p;
+	struct hdpvr_buffer *buf;
+	struct urb *urb;
+
+	for (p = q->next; p != q;) {
+		buf = list_entry(p, struct hdpvr_buffer, buff_list);
+
+		urb = buf->urb;
+		usb_buffer_free(urb->dev, urb->transfer_buffer_length,
+				urb->transfer_buffer, urb->transfer_dma);
+		usb_free_urb(urb);
+		tmp = p->next;
+		list_del(p);
+		kfree(buf);
+		p = tmp;
+	}
+
+	return 0;
+}
+
+/* function expects dev->io_mutex to be hold by caller */
+int hdpvr_free_buffers(struct hdpvr_device *dev)
+{
+	hdpvr_cancel_queue(dev);
+
+	hdpvr_free_queue(&dev->free_buff_list);
+	hdpvr_free_queue(&dev->rec_buff_list);
+
+	return 0;
+}
+
+/* function expects dev->io_mutex to be hold by caller */
+int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
+{
+	uint i;
+	int retval = -ENOMEM;
+	u8 *mem;
+	struct hdpvr_buffer *buf;
+	struct urb *urb;
+
+	v4l2_dbg(MSG_INFO, hdpvr_debug, dev->video_dev,
+		 "allocating %u buffers\n", count);
+
+	for (i = 0; i < count; i++) {
+
+		buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
+		if (!buf) {
+			err("cannot allocate buffer");
+			goto exit;
+		}
+		buf->dev = dev;
+
+		urb = usb_alloc_urb(0, GFP_KERNEL);
+		if (!urb) {
+			err("cannot allocate urb");
+			goto exit;
+		}
+		buf->urb = urb;
+
+		mem = usb_buffer_alloc(dev->udev, dev->bulk_in_size, GFP_KERNEL,
+				       &urb->transfer_dma);
+		if (!mem) {
+			err("cannot allocate usb transfer buffer");
+			goto exit;
+		}
+
+		usb_fill_bulk_urb(buf->urb, dev->udev,
+				  usb_rcvbulkpipe(dev->udev,
+						  dev->bulk_in_endpointAddr),
+				  mem, dev->bulk_in_size,
+				  hdpvr_read_bulk_callback, buf);
+
+		buf->status = BUFSTAT_AVAILABLE;
+		list_add_tail(&buf->buff_list, &dev->free_buff_list);
+	}
+	return 0;
+exit:
+	hdpvr_free_buffers(dev);
+	return retval;
+}
+
+static int hdpvr_submit_buffers(struct hdpvr_device *dev)
+{
+	struct hdpvr_buffer *buf;
+	struct urb *urb;
+	int ret = 0, err_count = 0;
+
+	mutex_lock(&dev->io_mutex);
+
+	while (dev->status == STATUS_STREAMING &&
+	       !list_empty(&dev->free_buff_list)) {
+
+		buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer,
+				 buff_list);
+		if (buf->status != BUFSTAT_AVAILABLE) {
+			err("buffer not marked as availbale");
+			ret = -EFAULT;
+			goto err;
+		}
+
+		urb = buf->urb;
+		urb->status = 0;
+		urb->actual_length = 0;
+		ret = usb_submit_urb(urb, GFP_KERNEL);
+		if (ret) {
+			err("usb_submit_urb in %s returned %d", __func__, ret);
+			if (++err_count > 2)
+				break;
+			continue;
+		}
+		buf->status = BUFSTAT_INPROGRESS;
+		list_move_tail(&buf->buff_list, &dev->rec_buff_list);
+	}
+err:
+	v4l2_dbg(MSG_BUFFER, hdpvr_debug, dev->video_dev,
+		 "buffer queue stat: %d free, %d proc\n",
+		 list_size(&dev->free_buff_list),
+		 list_size(&dev->rec_buff_list));
+	mutex_unlock(&dev->io_mutex);
+	return ret;
+}
+
+static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev)
+{
+	struct hdpvr_buffer *buf;
+
+	mutex_lock(&dev->io_mutex);
+
+	if (list_empty(&dev->rec_buff_list)) {
+		mutex_unlock(&dev->io_mutex);
+		return NULL;
+	}
+
+	buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer,
+			 buff_list);
+	mutex_unlock(&dev->io_mutex);
+
+	return buf;
+}
+
+static void hdpvr_transmit_buffers(struct work_struct *work)
+{
+	struct hdpvr_device *dev = container_of(work, struct hdpvr_device,
+						worker);
+
+	while (dev->status == STATUS_STREAMING) {
+
+		if (hdpvr_submit_buffers(dev)) {
+			v4l2_err(dev->video_dev, "couldn't submit buffers\n");
+			goto error;
+		}
+		if (wait_event_interruptible(dev->wait_buffer,
+				!list_empty(&dev->free_buff_list) ||
+					     dev->status != STATUS_STREAMING))
+			goto error;
+	}
+
+	v4l2_dbg(MSG_INFO, hdpvr_debug, dev->video_dev,
+		 "transmit worker exited\n");
+	return;
+error:
+	v4l2_dbg(MSG_INFO, hdpvr_debug, dev->video_dev,
+		 "transmit buffers errored\n");
+	dev->status = STATUS_ERROR;
+}
+
+/* function expects dev->io_mutex to be hold by caller */
+static int hdpvr_start_streaming(struct hdpvr_device *dev)
+{
+	int ret;
+	struct hdpvr_video_info *vidinf;
+
+	if (dev->status == STATUS_STREAMING)
+		return 0;
+	else if (dev->status != STATUS_IDLE)
+		return -EAGAIN;
+
+	vidinf = get_video_info(dev);
+
+	if (vidinf) {
+		v4l2_dbg(MSG_BUFFER, hdpvr_debug, dev->video_dev,
+			 "video signal: %dx%d@%dhz\n", vidinf->width,
+			 vidinf->height, vidinf->fps);
+		kfree(vidinf);
+
+		/* start streaming 2 request */
+		ret = usb_control_msg(dev->udev,
+				      usb_sndctrlpipe(dev->udev, 0),
+				      0xb8, 0x38, 0x1, 0, NULL, 0, 8000);
+		v4l2_dbg(MSG_BUFFER, hdpvr_debug, dev->video_dev,
+			 "encoder start control request returned %d\n", ret);
+
+		hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00);
+
+		INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
+		queue_work(dev->workqueue, &dev->worker);
+
+		v4l2_dbg(MSG_BUFFER, hdpvr_debug, dev->video_dev,
+			 "streaming started\n");
+		dev->status = STATUS_STREAMING;
+
+		return 0;
+	}
+	msleep(250);
+	v4l2_dbg(MSG_INFO, hdpvr_debug, dev->video_dev,
+		 "no video signal at input %d\n", dev->options.video_input);
+	return -EAGAIN;
+}
+
+
+/* function expects dev->io_mutex to be hold by caller */
+static int hdpvr_stop_streaming(struct hdpvr_device *dev)
+{
+	if (dev->status == STATUS_IDLE)
+		return 0;
+	else if (dev->status != STATUS_STREAMING)
+		return -EAGAIN;
+
+	dev->status = STATUS_SHUTTING_DOWN;
+	hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00);
+
+	wake_up_interruptible(&dev->wait_buffer);
+	msleep(50);
+
+	flush_workqueue(dev->workqueue);
+
+	/* kill the still outstanding urbs */
+	hdpvr_cancel_queue(dev);
+
+	dev->status = STATUS_IDLE;
+
+	return 0;
+}
+
+
+/*=======================================================================*/
+/*
+ * video 4 linux 2 file operations
+ */
+
+static int hdpvr_open(struct file *file)
+{
+	struct hdpvr_device *dev;
+	struct hdpvr_fh *fh;
+	int retval = -ENOMEM;
+
+	dev = (struct hdpvr_device *)video_get_drvdata(video_devdata(file));
+	if (!dev) {
+		err("open failing with with ENODEV");
+		retval = -ENODEV;
+		goto err;
+	}
+
+	fh = kzalloc(sizeof(struct hdpvr_fh), GFP_KERNEL);
+	if (!fh) {
+		err("Out of memory?");
+		goto err;
+	}
+	/* lock the device to allow correctly handling errors
+	 * in resumption */
+	mutex_lock(&dev->io_mutex);
+	dev->open_count++;
+
+	fh->dev = dev;
+
+	/* save our object in the file's private structure */
+	file->private_data = fh;
+
+	retval = 0;
+err:
+	mutex_unlock(&dev->io_mutex);
+	return retval;
+}
+
+static int hdpvr_release(struct file *file)
+{
+	struct hdpvr_fh		*fh  = (struct hdpvr_fh *)file->private_data;
+	struct hdpvr_device	*dev = fh->dev;
+
+	if (!dev)
+		return -ENODEV;
+
+	mutex_lock(&dev->io_mutex);
+	if (!(--dev->open_count) && dev->status == STATUS_STREAMING)
+		hdpvr_stop_streaming(dev);
+
+	mutex_unlock(&dev->io_mutex);
+
+	return 0;
+}
+
+/*
+ * hdpvr_v4l2_read()
+ * will allocate buffers when called for the first time
+ */
+static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
+			  loff_t *pos)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	struct hdpvr_buffer *buf = NULL;
+	struct urb *urb;
+	unsigned int ret = 0;
+	int rem, cnt;
+
+	if (*pos)
+		return -ESPIPE;
+
+	if (!dev)
+		return -ENODEV;
+
+	mutex_lock(&dev->io_mutex);
+	if (dev->status == STATUS_IDLE) {
+		if (hdpvr_start_streaming(dev)) {
+			v4l2_dbg(MSG_INFO, hdpvr_debug, dev->video_dev,
+				 "start_streaming failed");
+			ret = -EIO;
+			msleep(200);
+			dev->status = STATUS_IDLE;
+			mutex_unlock(&dev->io_mutex);
+			goto err;
+		}
+
+		v4l2_dbg(MSG_BUFFER, hdpvr_debug, dev->video_dev,
+			 "buffer queue stat: %d free, %d proc\n",
+			 list_size(&dev->free_buff_list),
+			 list_size(&dev->rec_buff_list));
+	}
+	mutex_unlock(&dev->io_mutex);
+
+	/* wait for the first buffer */
+	if (!(file->f_flags & O_NONBLOCK)) {
+		if (wait_event_interruptible(dev->wait_data,
+					     hdpvr_get_next_buffer(dev)))
+			return -ERESTARTSYS;
+	}
+
+	buf = hdpvr_get_next_buffer(dev);
+
+	while (count > 0 && buf) {
+
+		if (buf->status != BUFSTAT_READY &&
+		    dev->status != STATUS_DISCONNECTED) {
+			/* return nonblocking */
+			if (file->f_flags & O_NONBLOCK) {
+				if (!ret)
+					ret = -EAGAIN;
+				goto err;
+			}
+
+			if (wait_event_interruptible(dev->wait_data,
+					      buf->status == BUFSTAT_READY)) {
+				ret = -ERESTARTSYS;
+				goto err;
+			}
+		}
+
+		if (buf->status != BUFSTAT_READY)
+			break;
+
+		/* set remaining bytes to copy */
+		urb = buf->urb;
+		rem = urb->actual_length - buf->pos;
+		cnt = rem > count ? count : rem;
+
+		if (copy_to_user(buffer, urb->transfer_buffer + buf->pos,
+				 cnt)) {
+			err("read: copy_to_user failed");
+			if (!ret)
+				ret = -EFAULT;
+			goto err;
+		}
+
+		buf->pos += cnt;
+		count -= cnt;
+		buffer += cnt;
+		ret += cnt;
+
+		/* finished, take next buffer */
+		if (buf->pos == urb->actual_length) {
+			mutex_lock(&dev->io_mutex);
+			buf->pos = 0;
+			buf->status = BUFSTAT_AVAILABLE;
+
+			list_move_tail(&buf->buff_list, &dev->free_buff_list);
+
+			v4l2_dbg(MSG_BUFFER, hdpvr_debug, dev->video_dev,
+				 "buffer queue stat: %d free, %d proc\n",
+				 list_size(&dev->free_buff_list),
+				 list_size(&dev->rec_buff_list));
+
+			mutex_unlock(&dev->io_mutex);
+
+			wake_up_interruptible(&dev->wait_buffer);
+
+			buf = hdpvr_get_next_buffer(dev);
+		}
+	}
+err:
+	if (!ret && !buf)
+		ret = -EAGAIN;
+	return ret;
+}
+
+static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
+{
+	struct hdpvr_fh *fh = (struct hdpvr_fh *)filp->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	unsigned int mask = 0;
+
+	mutex_lock(&dev->io_mutex);
+
+	if (video_is_unregistered(dev->video_dev))
+		return -EIO;
+
+	if (dev->status == STATUS_IDLE) {
+		if (hdpvr_start_streaming(dev)) {
+			v4l2_dbg(MSG_BUFFER, hdpvr_debug, dev->video_dev,
+				 "start_streaming failed");
+			dev->status = STATUS_IDLE;
+		}
+
+		v4l2_dbg(MSG_BUFFER, hdpvr_debug, dev->video_dev,
+			 "buffer queue stat: %d free, %d proc\n",
+			 list_size(&dev->free_buff_list),
+			 list_size(&dev->rec_buff_list));
+	}
+	mutex_unlock(&dev->io_mutex);
+
+	poll_wait(filp, &dev->wait_data, wait);
+
+	mutex_lock(&dev->io_mutex);
+	if (!list_empty(&dev->rec_buff_list)) {
+
+		struct hdpvr_buffer *buf = list_entry(dev->rec_buff_list.next,
+						      struct hdpvr_buffer,
+						      buff_list);
+
+		if (buf->status == BUFSTAT_READY)
+			mask |= POLLIN | POLLRDNORM;
+	}
+	mutex_unlock(&dev->io_mutex);
+
+	return mask;
+}
+
+
+static long hdpvr_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+	struct hdpvr_fh *fh = (struct hdpvr_fh *)filp->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	int res;
+
+	if (video_is_unregistered(dev->video_dev))
+		return -EIO;
+
+	mutex_lock(&dev->io_mutex);
+	switch (cmd) {
+	case VIDIOC_TRY_ENCODER_CMD:
+	case VIDIOC_ENCODER_CMD: {
+		struct v4l2_encoder_cmd *enc = (struct v4l2_encoder_cmd *)arg;
+		int try = cmd == VIDIOC_TRY_ENCODER_CMD;
+
+		memset(&enc->raw, 0, sizeof(enc->raw));
+		switch (enc->cmd) {
+		case V4L2_ENC_CMD_START:
+			enc->flags = 0;
+			if (try)
+				return 0;
+			res = hdpvr_start_streaming(dev);
+			break;
+		case V4L2_ENC_CMD_STOP:
+			if (try)
+				return 0;
+			res = hdpvr_stop_streaming(dev);
+			break;
+		default:
+			v4l2_dbg(MSG_INFO, hdpvr_debug, dev->video_dev,
+				 "Unsupported encoder cmd %d\n", enc->cmd);
+			return -EINVAL;
+		}
+		break;
+	}
+	default:
+		res = video_ioctl2(filp, cmd, arg);
+	}
+	mutex_unlock(&dev->io_mutex);
+	return res;
+}
+
+static const struct v4l2_file_operations hdpvr_fops = {
+	.owner		= THIS_MODULE,
+	.open		= hdpvr_open,
+	.release	= hdpvr_release,
+	.read		= hdpvr_read,
+	.poll		= hdpvr_poll,
+	.unlocked_ioctl	= hdpvr_ioctl,
+};
+
+/*=======================================================================*/
+/*
+ * V4L2 ioctl handling
+ */
+
+static int vidioc_querycap(struct file *file, void  *priv,
+			   struct v4l2_capability *cap)
+{
+	struct hdpvr_device *dev = video_drvdata(file);
+
+	strcpy(cap->driver, "hdpvr");
+	strcpy(cap->card, "Haupauge HD PVR");
+	usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
+	cap->version = HDPVR_VERSION;
+	cap->capabilities =     V4L2_CAP_VIDEO_CAPTURE |
+				V4L2_CAP_AUDIO         |
+				V4L2_CAP_READWRITE;
+	return 0;
+}
+
+static int vidioc_s_std(struct file *file, void *private_data,
+			v4l2_std_id *std)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	u8 std_type = 1;
+
+	if (*std & (V4L2_STD_NTSC | V4L2_STD_PAL_60))
+		std_type = 0;
+
+	return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
+}
+
+static const char *iname[] = {
+	[HDPVR_COMPONENT] = "Component",
+	[HDPVR_SVIDEO]    = "S-Video",
+	[HDPVR_COMPOSITE] = "Composite",
+};
+
+static int vidioc_enum_input(struct file *file, void *priv,
+				struct v4l2_input *i)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	unsigned int n;
+
+	n = i->index;
+	if (n >= HDPVR_VIDEO_INPUTS)
+		return -EINVAL;
+
+	i->type = V4L2_INPUT_TYPE_CAMERA;
+
+	strncpy(i->name, iname[n], sizeof(i->name) - 1);
+	i->name[sizeof(i->name) - 1] = '\0';
+
+	i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF;
+
+	i->std = dev->video_dev->tvnorms;
+
+	return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *private_data,
+			  unsigned int index)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	int retval;
+
+	if (index >= HDPVR_VIDEO_INPUTS)
+		return -EINVAL;
+
+	if (dev->status != STATUS_IDLE)
+		return -EAGAIN;
+
+	retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
+	if (!retval)
+		dev->options.video_input = index;
+
+	return retval;
+}
+
+static int vidioc_g_input(struct file *file, void *private_data,
+			  unsigned int *index)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+
+	*index = dev->options.video_input;
+	return 0;
+}
+
+
+static const char *audio_iname[] = {
+	[HDPVR_RCA_FRONT] = "RCA front",
+	[HDPVR_RCA_BACK]  = "RCA back",
+	[HDPVR_SPDIF]     = "SPDIF",
+};
+
+static int vidioc_enumaudio(struct file *file, void *priv,
+				struct v4l2_audio *audio)
+{
+	unsigned int n;
+
+	n = audio->index;
+	if (n >= HDPVR_AUDIO_INPUTS)
+		return -EINVAL;
+
+	audio->capability = V4L2_AUDCAP_STEREO;
+
+	strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1);
+	audio->name[sizeof(audio->name) - 1] = '\0';
+
+	return 0;
+}
+
+static int vidioc_s_audio(struct file *file, void *private_data,
+			  struct v4l2_audio *audio)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	int retval;
+
+	if (audio->index >= HDPVR_AUDIO_INPUTS)
+		return -EINVAL;
+
+	if (dev->status != STATUS_IDLE)
+		return -EAGAIN;
+
+	retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec);
+	if (!retval)
+		dev->options.audio_input = audio->index;
+
+	return retval;
+}
+
+static int vidioc_g_audio(struct file *file, void *private_data,
+			  struct v4l2_audio *audio)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+
+	audio->index = dev->options.audio_input;
+	audio->capability = V4L2_AUDCAP_STEREO;
+	strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
+	audio->name[sizeof(audio->name) - 1] = '\0';
+	return 0;
+}
+
+static const s32 supported_v4l2_ctrls[] = {
+	V4L2_CID_BRIGHTNESS,
+	V4L2_CID_CONTRAST,
+	V4L2_CID_SATURATION,
+	V4L2_CID_HUE,
+	V4L2_CID_SHARPNESS,
+	V4L2_CID_MPEG_AUDIO_ENCODING,
+	V4L2_CID_MPEG_VIDEO_ENCODING,
+	V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
+	V4L2_CID_MPEG_VIDEO_BITRATE,
+	V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
+};
+
+static int fill_queryctrl(struct hdpvr_options *opt, struct v4l2_queryctrl *qc,
+			  int ac3)
+{
+	int err;
+
+	switch (qc->id) {
+	case V4L2_CID_BRIGHTNESS:
+		return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x86);
+	case V4L2_CID_CONTRAST:
+		return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
+	case V4L2_CID_SATURATION:
+		return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
+	case V4L2_CID_HUE:
+		return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
+	case V4L2_CID_SHARPNESS:
+		return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
+	case V4L2_CID_MPEG_AUDIO_ENCODING:
+		return v4l2_ctrl_query_fill(
+			qc, V4L2_MPEG_AUDIO_ENCODING_AAC,
+			ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3
+			: V4L2_MPEG_AUDIO_ENCODING_AAC,
+			1, V4L2_MPEG_AUDIO_ENCODING_AAC);
+	case V4L2_CID_MPEG_VIDEO_ENCODING:
+		return v4l2_ctrl_query_fill(
+			qc, V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC,
+			V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 1,
+			V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC);
+
+/* 	case V4L2_CID_MPEG_VIDEO_? maybe keyframe interval: */
+/* 		return v4l2_ctrl_query_fill(qc, 0, 128, 128, 0); */
+	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+		return v4l2_ctrl_query_fill(
+			qc, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
+			V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
+			V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
+
+	case V4L2_CID_MPEG_VIDEO_BITRATE:
+		return v4l2_ctrl_query_fill(qc, 1000000, 13500000, 100000,
+					    6500000);
+	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+		err = v4l2_ctrl_query_fill(qc, 1100000, 20200000, 100000,
+					   9000000);
+		if (!err && opt->bitrate_mode == HDPVR_CONSTANT)
+			qc->flags |= V4L2_CTRL_FLAG_INACTIVE;
+		return err;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int vidioc_queryctrl(struct file *file, void *private_data,
+			    struct v4l2_queryctrl *qc)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	int i, next;
+	u32 id = qc->id;
+
+	memset(qc, 0, sizeof(*qc));
+
+	next = !!(id &  V4L2_CTRL_FLAG_NEXT_CTRL);
+	qc->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL;
+
+	for (i = 0; i < ARRAY_SIZE(supported_v4l2_ctrls); i++) {
+		if (next) {
+			if (qc->id < supported_v4l2_ctrls[i])
+				qc->id = supported_v4l2_ctrls[i];
+			else
+				continue;
+		}
+
+		if (qc->id == supported_v4l2_ctrls[i])
+			return fill_queryctrl(&dev->options, qc,
+					      dev->flags & HDPVR_FLAG_AC3_CAP);
+
+		if (qc->id < supported_v4l2_ctrls[i])
+			break;
+	}
+
+	return -EINVAL;
+}
+
+static int vidioc_g_ctrl(struct file *file, void *private_data,
+			 struct v4l2_control *ctrl)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		ctrl->value = dev->options.brightness;
+		break;
+	case V4L2_CID_CONTRAST:
+		ctrl->value = dev->options.contrast;
+		break;
+	case V4L2_CID_SATURATION:
+		ctrl->value = dev->options.saturation;
+		break;
+	case V4L2_CID_HUE:
+		ctrl->value = dev->options.hue;
+		break;
+	case V4L2_CID_SHARPNESS:
+		ctrl->value = dev->options.sharpness;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int vidioc_s_ctrl(struct file *file, void *private_data,
+			 struct v4l2_control *ctrl)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	int retval;
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		retval = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->value);
+		if (!retval)
+			dev->options.brightness = ctrl->value;
+		break;
+	case V4L2_CID_CONTRAST:
+		retval = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->value);
+		if (!retval)
+			dev->options.contrast = ctrl->value;
+		break;
+	case V4L2_CID_SATURATION:
+		retval = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->value);
+		if (!retval)
+			dev->options.saturation = ctrl->value;
+		break;
+	case V4L2_CID_HUE:
+		retval = hdpvr_config_call(dev, CTRL_HUE, ctrl->value);
+		if (!retval)
+			dev->options.hue = ctrl->value;
+		break;
+	case V4L2_CID_SHARPNESS:
+		retval = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->value);
+		if (!retval)
+			dev->options.sharpness = ctrl->value;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return retval;
+}
+
+
+static int hdpvr_get_ctrl(struct hdpvr_options *opt,
+			  struct v4l2_ext_control *ctrl)
+{
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_AUDIO_ENCODING:
+		ctrl->value = opt->audio_codec;
+		break;
+	case V4L2_CID_MPEG_VIDEO_ENCODING:
+		ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC;
+		break;
+/* 	case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
+/* 		ctrl->value = (opt->gop_mode & 0x2) ? 0 : 128; */
+/* 		break; */
+	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+		ctrl->value = opt->bitrate_mode == HDPVR_CONSTANT
+			? V4L2_MPEG_VIDEO_BITRATE_MODE_CBR
+			: V4L2_MPEG_VIDEO_BITRATE_MODE_VBR;
+		break;
+	case V4L2_CID_MPEG_VIDEO_BITRATE:
+		ctrl->value = opt->bitrate * 100000;
+		break;
+	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+		ctrl->value = opt->peak_bitrate * 100000;
+		break;
+	case V4L2_CID_MPEG_STREAM_TYPE:
+		ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int vidioc_g_ext_ctrls(struct file *file, void *priv,
+			      struct v4l2_ext_controls *ctrls)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	int i, err = 0;
+
+	if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
+		for (i = 0; i < ctrls->count; i++) {
+			struct v4l2_ext_control *ctrl = ctrls->controls + i;
+
+			err = hdpvr_get_ctrl(&dev->options, ctrl);
+			if (err) {
+				ctrls->error_idx = i;
+				break;
+			}
+		}
+		return err;
+
+	}
+
+	return -EINVAL;
+}
+
+
+static int hdpvr_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
+{
+	int ret = -EINVAL;
+
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_AUDIO_ENCODING:
+		if (ctrl->value == V4L2_MPEG_AUDIO_ENCODING_AAC ||
+		    (ac3 && ctrl->value == V4L2_MPEG_AUDIO_ENCODING_AC3))
+			ret = 0;
+		break;
+	case V4L2_CID_MPEG_VIDEO_ENCODING:
+		if (ctrl->value == V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC)
+			ret = 0;
+		break;
+/* 	case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
+/* 		if (ctrl->value == 0 || ctrl->value == 128) */
+/* 			ret = 0; */
+/* 		break; */
+	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+		if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR ||
+		    ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR)
+			ret = 0;
+		break;
+	case V4L2_CID_MPEG_VIDEO_BITRATE:
+	{
+		uint bitrate = ctrl->value / 100000;
+		if (bitrate >= 10 && bitrate <= 135)
+			ret = 0;
+		break;
+	}
+	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+	{
+		uint peak_bitrate = ctrl->value / 100000;
+		if (peak_bitrate >= 10 && peak_bitrate <= 202)
+			ret = 0;
+		break;
+	}
+	case V4L2_CID_MPEG_STREAM_TYPE:
+		if (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)
+			ret = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int vidioc_try_ext_ctrls(struct file *file, void *priv,
+				struct v4l2_ext_controls *ctrls)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	int i, err = 0;
+
+	if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
+		for (i = 0; i < ctrls->count; i++) {
+			struct v4l2_ext_control *ctrl = ctrls->controls + i;
+
+			err = hdpvr_try_ctrl(ctrl,
+					     dev->flags & HDPVR_FLAG_AC3_CAP);
+			if (err) {
+				ctrls->error_idx = i;
+				break;
+			}
+		}
+		return err;
+	}
+
+	return -EINVAL;
+}
+
+
+static int hdpvr_set_ctrl(struct hdpvr_device *dev,
+			  struct v4l2_ext_control *ctrl)
+{
+	struct hdpvr_options *opt = &dev->options;
+	int ret = 0;
+
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_AUDIO_ENCODING:
+		if (dev->flags & HDPVR_FLAG_AC3_CAP) {
+			opt->audio_codec = ctrl->value;
+			ret = hdpvr_set_audio(dev, opt->audio_input,
+					      opt->audio_codec);
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_ENCODING:
+		break;
+/* 	case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
+/* 		if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */
+/* 			opt->gop_mode |= 0x2; */
+/* 			hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
+/* 					  opt->gop_mode); */
+/* 		} */
+/* 		if (ctrl->value == 128 && opt->gop_mode & 0x2) { */
+/* 			opt->gop_mode &= ~0x2; */
+/* 			hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
+/* 					  opt->gop_mode); */
+/* 		} */
+/* 		break; */
+	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+		if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR &&
+		    opt->bitrate_mode != HDPVR_CONSTANT) {
+			opt->bitrate_mode = HDPVR_CONSTANT;
+			hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
+					  opt->bitrate_mode);
+		}
+		if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
+		    opt->bitrate_mode == HDPVR_CONSTANT) {
+			opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE;
+			hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
+					  opt->bitrate_mode);
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_BITRATE: {
+		uint bitrate = ctrl->value / 100000;
+
+		opt->bitrate = bitrate;
+		if (bitrate >= opt->peak_bitrate)
+			opt->peak_bitrate = bitrate+1;
+
+		hdpvr_set_bitrate(dev);
+		break;
+	}
+	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: {
+		uint peak_bitrate = ctrl->value / 100000;
+
+		if (opt->bitrate_mode == HDPVR_CONSTANT)
+			break;
+
+		if (opt->bitrate < peak_bitrate) {
+			opt->peak_bitrate = peak_bitrate;
+			hdpvr_set_bitrate(dev);
+		} else
+			ret = -EINVAL;
+		break;
+	}
+	case V4L2_CID_MPEG_STREAM_TYPE:
+		break;
+	default:
+		return -EINVAL;
+	}
+	return ret;
+}
+
+static int vidioc_s_ext_ctrls(struct file *file, void *priv,
+			      struct v4l2_ext_controls *ctrls)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	int i, err = 0;
+
+	if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
+		for (i = 0; i < ctrls->count; i++) {
+			struct v4l2_ext_control *ctrl = ctrls->controls + i;
+
+			err = hdpvr_try_ctrl(ctrl,
+					     dev->flags & HDPVR_FLAG_AC3_CAP);
+			if (err) {
+				ctrls->error_idx = i;
+				break;
+			}
+			err = hdpvr_set_ctrl(dev, ctrl);
+			if (err) {
+				ctrls->error_idx = i;
+				break;
+			}
+		}
+		return err;
+
+	}
+
+	return -EINVAL;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data,
+				    struct v4l2_fmtdesc *f)
+{
+
+	if (f->index != 0 || f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	f->flags = V4L2_FMT_FLAG_COMPRESSED;
+	strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32);
+	f->pixelformat = V4L2_PIX_FMT_MPEG;
+
+	return 0;
+}
+
+static int vidioc_g_fmt_vid_cap(struct file *file, void *private_data,
+				struct v4l2_format *f)
+{
+	struct hdpvr_fh *fh = file->private_data;
+	struct hdpvr_device *dev = fh->dev;
+	struct hdpvr_video_info *vid_info;
+
+	if (!dev)
+		return -ENODEV;
+
+	vid_info = get_video_info(dev);
+	if (!vid_info)
+		return -EFAULT;
+
+	f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	f->fmt.pix.pixelformat	= V4L2_PIX_FMT_MPEG;
+	f->fmt.pix.width	= vid_info->width;
+	f->fmt.pix.height	= vid_info->height;
+	f->fmt.pix.sizeimage	= dev->bulk_in_size;
+	f->fmt.pix.colorspace	= 0;
+	f->fmt.pix.bytesperline	= 0;
+	f->fmt.pix.field	= V4L2_FIELD_ANY;
+
+	kfree(vid_info);
+	return 0;
+}
+
+
+static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
+	.vidioc_querycap	= vidioc_querycap,
+	.vidioc_s_std		= vidioc_s_std,
+	.vidioc_enum_input	= vidioc_enum_input,
+	.vidioc_g_input		= vidioc_g_input,
+	.vidioc_s_input		= vidioc_s_input,
+	.vidioc_enumaudio	= vidioc_enumaudio,
+	.vidioc_g_audio		= vidioc_g_audio,
+	.vidioc_s_audio		= vidioc_s_audio,
+	.vidioc_queryctrl	= vidioc_queryctrl,
+	.vidioc_g_ctrl		= vidioc_g_ctrl,
+	.vidioc_s_ctrl		= vidioc_s_ctrl,
+	.vidioc_g_ext_ctrls	= vidioc_g_ext_ctrls,
+	.vidioc_s_ext_ctrls	= vidioc_s_ext_ctrls,
+	.vidioc_try_ext_ctrls	= vidioc_try_ext_ctrls,
+	.vidioc_enum_fmt_vid_cap	= vidioc_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap		= vidioc_g_fmt_vid_cap,
+};
+
+static void hdpvr_device_release(struct video_device *vdev)
+{
+	struct hdpvr_device *dev = video_get_drvdata(vdev);
+
+	hdpvr_delete(dev);
+}
+
+static const struct video_device hdpvr_video_template = {
+/* 	.type			= VFL_TYPE_GRABBER, */
+/* 	.type2			= VID_TYPE_CAPTURE | VID_TYPE_MPEG_ENCODER, */
+	.fops			= &hdpvr_fops,
+	.release		= hdpvr_device_release,
+	.ioctl_ops 		= &hdpvr_ioctl_ops,
+	.tvnorms 		=
+		V4L2_STD_NTSC  | V4L2_STD_SECAM | V4L2_STD_PAL_B |
+		V4L2_STD_PAL_G | V4L2_STD_PAL_H | V4L2_STD_PAL_I |
+		V4L2_STD_PAL_D | V4L2_STD_PAL_M | V4L2_STD_PAL_N |
+		V4L2_STD_PAL_60,
+};
+
+int hdpvr_register_videodev(struct hdpvr_device *dev, int devnum)
+{
+	/* setup and register video device */
+	dev->video_dev = video_device_alloc();
+	if (!dev->video_dev) {
+		err("video_device_alloc() failed");
+		goto error;
+	}
+
+	*(dev->video_dev) = hdpvr_video_template;
+	strcpy(dev->video_dev->name, "Hauppauge HD PVR");
+	dev->video_dev->parent = &dev->udev->dev;
+	video_set_drvdata(dev->video_dev, dev);
+
+	if (video_register_device(dev->video_dev, VFL_TYPE_GRABBER, devnum)) {
+		err("V4L2 device registration failed");
+		goto error;
+	}
+
+	return 0;
+error:
+	return -ENOMEM;
+}
diff --git a/drivers/media/video/hdpvr/hdpvr.h b/drivers/media/video/hdpvr/hdpvr.h
new file mode 100644
index 000000000000..17db74feb884
--- /dev/null
+++ b/drivers/media/video/hdpvr/hdpvr.h
@@ -0,0 +1,298 @@
+/*
+ * Hauppage HD PVR USB driver
+ *
+ * Copyright (C) 2008      Janne Grunau (j@jannau.net)
+ *
+ *	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.
+ *
+ */
+
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <linux/videodev2.h>
+
+#define HDPVR_MAJOR_VERSION 0
+#define HDPVR_MINOR_VERSION 2
+#define HDPVR_RELEASE 0
+#define HDPVR_VERSION \
+	KERNEL_VERSION(HDPVR_MAJOR_VERSION, HDPVR_MINOR_VERSION, HDPVR_RELEASE)
+
+#define HDPVR_MAX 8
+
+/* Define these values to match your devices */
+#define HD_PVR_VENDOR_ID	0x2040
+#define HD_PVR_PRODUCT_ID	0x4900
+#define HD_PVR_PRODUCT_ID1	0x4901
+#define HD_PVR_PRODUCT_ID2	0x4902
+
+#define UNSET    (-1U)
+
+#define NUM_BUFFERS 64
+
+#define HDPVR_FIRMWARE_VERSION		0x8
+#define HDPVR_FIRMWARE_VERSION_AC3	0xd
+
+/* #define HDPVR_DEBUG */
+
+extern int hdpvr_debug;
+
+#define MSG_INFO	1
+#define MSG_BUFFER	2
+
+struct hdpvr_options {
+	u8	video_std;
+	u8	video_input;
+	u8	audio_input;
+	u8	bitrate;	/* in 100kbps */
+	u8	peak_bitrate;	/* in 100kbps */
+	u8	bitrate_mode;
+	u8	gop_mode;
+	enum v4l2_mpeg_audio_encoding	audio_codec;
+	u8	brightness;
+	u8	contrast;
+	u8	hue;
+	u8	saturation;
+	u8	sharpness;
+};
+
+/* Structure to hold all of our device specific stuff */
+struct hdpvr_device {
+	/* the v4l device for this device */
+	struct video_device	*video_dev;
+	/* the usb device for this device */
+	struct usb_device	*udev;
+
+	/* the max packet size of the bulk endpoint */
+	size_t			bulk_in_size;
+	/* the address of the bulk in endpoint */
+	__u8			bulk_in_endpointAddr;
+
+	/* holds the current device status */
+	__u8			status;
+	/* count the number of openers */
+	uint			open_count;
+
+	/* holds the cureent set options */
+	struct hdpvr_options	options;
+
+	uint			flags;
+
+	/* synchronize I/O */
+	struct mutex		io_mutex;
+	/* available buffers */
+	struct list_head	free_buff_list;
+	/* in progress buffers */
+	struct list_head	rec_buff_list;
+	/* waitqueue for buffers */
+	wait_queue_head_t	wait_buffer;
+	/* waitqueue for data */
+	wait_queue_head_t	wait_data;
+	/**/
+	struct workqueue_struct	*workqueue;
+	/**/
+	struct work_struct	worker;
+
+	/* I2C adapter */
+	struct i2c_adapter	*i2c_adapter;
+	/* I2C lock */
+	struct mutex		i2c_mutex;
+
+	/* usb control transfer buffer and lock */
+	struct mutex		usbc_mutex;
+	u8			*usbc_buf;
+};
+
+
+/* buffer one bulk urb of data */
+struct hdpvr_buffer {
+	struct list_head	buff_list;
+
+	struct urb		*urb;
+
+	struct hdpvr_device	*dev;
+
+	uint			pos;
+
+	__u8			status;
+};
+
+/* */
+
+struct hdpvr_video_info {
+	u16	width;
+	u16	height;
+	u8	fps;
+};
+
+enum {
+	STATUS_UNINITIALIZED	= 0,
+	STATUS_IDLE,
+	STATUS_STARTING,
+	STATUS_SHUTTING_DOWN,
+	STATUS_STREAMING,
+	STATUS_ERROR,
+	STATUS_DISCONNECTED,
+};
+
+enum {
+	HDPVR_FLAG_AC3_CAP = 1,
+};
+
+enum {
+	BUFSTAT_UNINITIALIZED = 0,
+	BUFSTAT_AVAILABLE,
+	BUFSTAT_INPROGRESS,
+	BUFSTAT_READY,
+};
+
+#define CTRL_START_STREAMING_VALUE	0x0700
+#define CTRL_STOP_STREAMING_VALUE	0x0800
+#define CTRL_BITRATE_VALUE		0x1000
+#define CTRL_BITRATE_MODE_VALUE		0x1200
+#define CTRL_GOP_MODE_VALUE		0x1300
+#define CTRL_VIDEO_INPUT_VALUE		0x1500
+#define CTRL_VIDEO_STD_TYPE		0x1700
+#define CTRL_AUDIO_INPUT_VALUE		0x2500
+#define CTRL_BRIGHTNESS			0x2900
+#define CTRL_CONTRAST			0x2a00
+#define CTRL_HUE			0x2b00
+#define CTRL_SATURATION			0x2c00
+#define CTRL_SHARPNESS			0x2d00
+#define CTRL_LOW_PASS_FILTER_VALUE	0x3100
+
+#define CTRL_DEFAULT_INDEX		0x0003
+
+
+	/* :0 s 38 01 1000 0003 0004 4 = 0a00ca00
+	 * BITRATE SETTING
+	 *   1st and 2nd byte (little endian): average bitrate in 100 000 bit/s
+	 *                                     min: 1 mbit/s, max: 13.5 mbit/s
+	 *   3rd and 4th byte (little endian): peak bitrate in 100 000 bit/s
+	 *                                     min: average + 100kbit/s,
+	 *                                      max: 20.2 mbit/s
+	 */
+
+	/* :0 s 38 01 1200 0003 0001 1 = 02
+	 * BIT RATE MODE
+	 *  constant = 1, variable (peak) = 2, variable (average) = 3
+	 */
+
+	/* :0 s 38 01 1300 0003 0001 1 = 03
+	 * GOP MODE (2 bit)
+	 *    low bit 0/1: advanced/simple GOP
+	 *   high bit 0/1: IDR(4/32/128) / no IDR (4/32/0)
+	 */
+
+	/* :0 s 38 01 1700 0003 0001 1 = 00
+	 * VIDEO STANDARD or FREQUNCY 0 = 60hz, 1 = 50hz
+	 */
+
+	/* :0 s 38 01 3100 0003 0004 4 = 03030000
+	 * FILTER CONTROL
+	 *   1st byte luma low pass filter strength,
+	 *   2nd byte chroma low pass filter strength,
+	 *   3rd byte MF enable chroma, min=0, max=1
+	 *   4th byte n
+	 */
+
+
+	/* :0 s 38 b9 0001 0000 0000 0 */
+
+
+
+/* :0 s 38 d3 0000 0000 0001 1 = 00 */
+/* 		ret = usb_control_msg(dev->udev, */
+/* 				      usb_sndctrlpipe(dev->udev, 0), */
+/* 				      0xd3, 0x38, */
+/* 				      0, 0, */
+/* 				      "\0", 1, */
+/* 				      1000); */
+
+/* 		info("control request returned %d", ret); */
+/* 		msleep(5000); */
+
+
+	/* :0 s b8 81 1400 0003 0005 5 <
+	 * :0 0 5 = d0024002 19
+	 * QUERY FRAME SIZE AND RATE
+	 *   1st and 2nd byte (little endian): horizontal resolution
+	 *   3rd and 4th byte (little endian): vertical resolution
+	 *   5th byte: frame rate
+	 */
+
+	/* :0 s b8 81 1800 0003 0003 3 <
+	 * :0 0 3 = 030104
+	 * QUERY SIGNAL AND DETECTED LINES, maybe INPUT
+	 */
+
+enum hdpvr_video_std {
+	HDPVR_60HZ = 0,
+	HDPVR_50HZ,
+};
+
+enum hdpvr_video_input {
+	HDPVR_COMPONENT = 0,
+	HDPVR_SVIDEO,
+	HDPVR_COMPOSITE,
+	HDPVR_VIDEO_INPUTS
+};
+
+enum hdpvr_audio_inputs {
+	HDPVR_RCA_BACK = 0,
+	HDPVR_RCA_FRONT,
+	HDPVR_SPDIF,
+	HDPVR_AUDIO_INPUTS
+};
+
+enum hdpvr_bitrate_mode {
+	HDPVR_CONSTANT = 1,
+	HDPVR_VARIABLE_PEAK,
+	HDPVR_VARIABLE_AVERAGE,
+};
+
+enum hdpvr_gop_mode {
+	HDPVR_ADVANCED_IDR_GOP = 0,
+	HDPVR_SIMPLE_IDR_GOP,
+	HDPVR_ADVANCED_NOIDR_GOP,
+	HDPVR_SIMPLE_NOIDR_GOP,
+};
+
+void hdpvr_delete(struct hdpvr_device *dev);
+
+/*========================================================================*/
+/* hardware control functions */
+int hdpvr_set_options(struct hdpvr_device *dev);
+
+int hdpvr_set_bitrate(struct hdpvr_device *dev);
+
+int hdpvr_set_audio(struct hdpvr_device *dev, u8 input,
+		    enum v4l2_mpeg_audio_encoding codec);
+
+int hdpvr_config_call(struct hdpvr_device *dev, uint value,
+		      unsigned char valbuf);
+
+struct hdpvr_video_info *get_video_info(struct hdpvr_device *dev);
+
+/* :0 s b8 81 1800 0003 0003 3 < */
+/* :0 0 3 = 0301ff */
+int get_input_lines_info(struct hdpvr_device *dev);
+
+
+/*========================================================================*/
+/* v4l2 registration */
+int hdpvr_register_videodev(struct hdpvr_device *dev, int devnumber);
+
+int hdpvr_cancel_queue(struct hdpvr_device *dev);
+
+/*========================================================================*/
+/* i2c adapter registration */
+int hdpvr_register_i2c_adapter(struct hdpvr_device *dev);
+
+/*========================================================================*/
+/* buffer management */
+int hdpvr_free_buffers(struct hdpvr_device *dev);
+int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count);
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 17d9af070f06..f27604af8378 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -88,6 +88,7 @@
 #define I2C_HW_B_CX2341X	0x010020 /* Conexant CX2341X MPEG encoder cards */
 #define I2C_HW_B_CX23885	0x010022 /* conexant 23885 based tv cards (bus1) */
 #define I2C_HW_B_AU0828		0x010023 /* auvitek au0828 usb bridge */
+#define I2C_HW_B_HDPVR		0x010025 /* Hauppauge HD PVR */
 
 /* --- SGI adapters							*/
 #define I2C_HW_SGI_VINO		0x160000
-- 
cgit v1.2.3


From 2da9479aaa331bdfaadab0d14f75fd76bfa5e56a Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 6 Feb 2009 18:59:35 -0300
Subject: V4L/DVB (11112): v4l2-subdev: add support for TRY_FMT, ENUM_FMT and
 G/S_PARM.

These ops are used by the ov7670 driver, so these need to be added.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/v4l2-subdev.c | 8 ++++++++
 include/media/v4l2-subdev.h       | 6 +++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c
index 923ec8d01991..dc881671d536 100644
--- a/drivers/media/video/v4l2-subdev.c
+++ b/drivers/media/video/v4l2-subdev.c
@@ -98,6 +98,10 @@ int v4l2_subdev_command(struct v4l2_subdev *sd, unsigned cmd, void *arg)
 		return v4l2_subdev_call(sd, video, g_vbi_data, arg);
 	case VIDIOC_G_SLICED_VBI_CAP:
 		return v4l2_subdev_call(sd, video, g_sliced_vbi_cap, arg);
+	case VIDIOC_ENUM_FMT:
+		return v4l2_subdev_call(sd, video, enum_fmt, arg);
+	case VIDIOC_TRY_FMT:
+		return v4l2_subdev_call(sd, video, try_fmt, arg);
 	case VIDIOC_S_FMT:
 		return v4l2_subdev_call(sd, video, s_fmt, arg);
 	case VIDIOC_G_FMT:
@@ -112,6 +116,10 @@ int v4l2_subdev_command(struct v4l2_subdev *sd, unsigned cmd, void *arg)
 		return v4l2_subdev_call(sd, video, s_stream, 1);
 	case VIDIOC_STREAMOFF:
 		return v4l2_subdev_call(sd, video, s_stream, 0);
+	case VIDIOC_S_PARM:
+		return v4l2_subdev_call(sd, video, s_parm, arg);
+	case VIDIOC_G_PARM:
+		return v4l2_subdev_call(sd, video, g_parm, arg);
 
 	default:
 		return v4l2_subdev_call(sd, core, ioctl, cmd, arg);
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 1b97a2c33a73..d7a72d2d1f00 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -118,8 +118,12 @@ struct v4l2_subdev_video_ops {
 	int (*querystd)(struct v4l2_subdev *sd, v4l2_std_id *std);
 	int (*g_input_status)(struct v4l2_subdev *sd, u32 *status);
 	int (*s_stream)(struct v4l2_subdev *sd, int enable);
-	int (*s_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
+	int (*enum_fmt)(struct v4l2_subdev *sd, struct v4l2_fmtdesc *fmtdesc);
 	int (*g_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
+	int (*try_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
+	int (*s_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
+	int (*g_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
+	int (*s_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
 };
 
 struct v4l2_subdev_ops {
-- 
cgit v1.2.3


From 69d94f7ec5edea85da0057c48c4f2877e5bb509e Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Wed, 18 Mar 2009 13:25:54 -0300
Subject: V4L/DVB (11118): cafe_ccic: replace debugfs with g/s_register ioctls.

Using VIDIOC_DBG_S/G_REGISTER is the standard way of reading/writing register
for advanced debugging under v4l2. In addition, using this means that the
cafe_ccic driver doesn't need to have knowledge about the used sensor: the
debug ioctl can be passed on to the sensor if it isn't for the host.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/cafe_ccic.c | 176 +++++++++++-----------------------------
 include/media/v4l2-chip-ident.h |  27 +++---
 2 files changed, 61 insertions(+), 142 deletions(-)

(limited to 'include')

diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index 3363e501d6d7..2f4293771392 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -33,7 +33,6 @@
 #include <linux/list.h>
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
-#include <linux/debugfs.h>
 #include <linux/jiffies.h>
 #include <linux/vmalloc.h>
 
@@ -182,10 +181,6 @@ struct cafe_camera
 	/* Misc */
 	wait_queue_head_t smbus_wait;	/* Waiting on i2c events */
 	wait_queue_head_t iowait;	/* Waiting on frame data */
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-	struct dentry *dfs_regs;
-	struct dentry *dfs_cam_regs;
-#endif
 };
 
 /*
@@ -1646,6 +1641,47 @@ static int cafe_vidioc_s_parm(struct file *filp, void *priv,
 	return ret;
 }
 
+static int cafe_vidioc_g_chip_ident(struct file *file, void *priv,
+		struct v4l2_dbg_chip_ident *chip)
+{
+	struct cafe_camera *cam = priv;
+
+	chip->ident = V4L2_IDENT_NONE;
+	chip->revision = 0;
+	if (v4l2_chip_match_host(&chip->match)) {
+		chip->ident = V4L2_IDENT_CAFE;
+		return 0;
+	}
+	return sensor_call(cam, core, g_chip_ident, chip);
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int cafe_vidioc_g_register(struct file *file, void *priv,
+		struct v4l2_dbg_register *reg)
+{
+	struct cafe_camera *cam = priv;
+
+	if (v4l2_chip_match_host(&reg->match)) {
+		reg->val = cafe_reg_read(cam, reg->reg);
+		reg->size = 4;
+		return 0;
+	}
+	return sensor_call(cam, core, g_register, reg);
+}
+
+static int cafe_vidioc_s_register(struct file *file, void *priv,
+		struct v4l2_dbg_register *reg)
+{
+	struct cafe_camera *cam = priv;
+
+	if (v4l2_chip_match_host(&reg->match)) {
+		cafe_reg_write(cam, reg->reg, reg->val);
+		return 0;
+	}
+	return sensor_call(cam, core, s_register, reg);
+}
+#endif
+
 /*
  * This template device holds all of those v4l2 methods; we
  * clone it for specific real devices.
@@ -1682,6 +1718,11 @@ static const struct v4l2_ioctl_ops cafe_v4l_ioctl_ops = {
 	.vidioc_s_ctrl		= cafe_vidioc_s_ctrl,
 	.vidioc_g_parm		= cafe_vidioc_g_parm,
 	.vidioc_s_parm		= cafe_vidioc_s_parm,
+	.vidioc_g_chip_ident    = cafe_vidioc_g_chip_ident,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.vidioc_g_register 	= cafe_vidioc_g_register,
+	.vidioc_s_register 	= cafe_vidioc_s_register,
+#endif
 };
 
 static struct video_device cafe_v4l_template = {
@@ -1849,127 +1890,6 @@ static irqreturn_t cafe_irq(int irq, void *data)
 
 
 /* -------------------------------------------------------------------------- */
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-/*
- * Debugfs stuff.
- */
-
-static char cafe_debug_buf[1024];
-static struct dentry *cafe_dfs_root;
-
-static void cafe_dfs_setup(void)
-{
-	cafe_dfs_root = debugfs_create_dir("cafe_ccic", NULL);
-	if (IS_ERR(cafe_dfs_root)) {
-		cafe_dfs_root = NULL;  /* Never mind */
-		printk(KERN_NOTICE "cafe_ccic unable to set up debugfs\n");
-	}
-}
-
-static void cafe_dfs_shutdown(void)
-{
-	if (cafe_dfs_root)
-		debugfs_remove(cafe_dfs_root);
-}
-
-static int cafe_dfs_open(struct inode *inode, struct file *file)
-{
-	file->private_data = inode->i_private;
-	return 0;
-}
-
-static ssize_t cafe_dfs_read_regs(struct file *file,
-		char __user *buf, size_t count, loff_t *ppos)
-{
-	struct cafe_camera *cam = file->private_data;
-	char *s = cafe_debug_buf;
-	int offset;
-
-	for (offset = 0; offset < 0x44; offset += 4)
-		s += sprintf(s, "%02x: %08x\n", offset,
-				cafe_reg_read(cam, offset));
-	for (offset = 0x88; offset <= 0x90; offset += 4)
-		s += sprintf(s, "%02x: %08x\n", offset,
-				cafe_reg_read(cam, offset));
-	for (offset = 0xb4; offset <= 0xbc; offset += 4)
-		s += sprintf(s, "%02x: %08x\n", offset,
-				cafe_reg_read(cam, offset));
-	for (offset = 0x3000; offset <= 0x300c; offset += 4)
-		s += sprintf(s, "%04x: %08x\n", offset,
-				cafe_reg_read(cam, offset));
-	return simple_read_from_buffer(buf, count, ppos, cafe_debug_buf,
-			s - cafe_debug_buf);
-}
-
-static const struct file_operations cafe_dfs_reg_ops = {
-	.owner = THIS_MODULE,
-	.read = cafe_dfs_read_regs,
-	.open = cafe_dfs_open
-};
-
-static ssize_t cafe_dfs_read_cam(struct file *file,
-		char __user *buf, size_t count, loff_t *ppos)
-{
-	struct cafe_camera *cam = file->private_data;
-	char *s = cafe_debug_buf;
-	int offset;
-
-	if (! cam->sensor)
-		return -EINVAL;
-	for (offset = 0x0; offset < 0x8a; offset++)
-	{
-		u8 v;
-
-		cafe_smbus_read_data(cam, cam->sensor_addr, offset, &v);
-		s += sprintf(s, "%02x: %02x\n", offset, v);
-	}
-	return simple_read_from_buffer(buf, count, ppos, cafe_debug_buf,
-			s - cafe_debug_buf);
-}
-
-static const struct file_operations cafe_dfs_cam_ops = {
-	.owner = THIS_MODULE,
-	.read = cafe_dfs_read_cam,
-	.open = cafe_dfs_open
-};
-
-
-
-static void cafe_dfs_cam_setup(struct cafe_camera *cam)
-{
-	char fname[40];
-
-	if (!cafe_dfs_root)
-		return;
-	sprintf(fname, "regs-%d", cam->vdev.num);
-	cam->dfs_regs = debugfs_create_file(fname, 0444, cafe_dfs_root,
-			cam, &cafe_dfs_reg_ops);
-	sprintf(fname, "cam-%d", cam->vdev.num);
-	cam->dfs_cam_regs = debugfs_create_file(fname, 0444, cafe_dfs_root,
-			cam, &cafe_dfs_cam_ops);
-}
-
-
-static void cafe_dfs_cam_shutdown(struct cafe_camera *cam)
-{
-	if (! IS_ERR(cam->dfs_regs))
-		debugfs_remove(cam->dfs_regs);
-	if (! IS_ERR(cam->dfs_cam_regs))
-		debugfs_remove(cam->dfs_cam_regs);
-}
-
-#else
-
-#define cafe_dfs_setup()
-#define cafe_dfs_shutdown()
-#define cafe_dfs_cam_setup(cam)
-#define cafe_dfs_cam_shutdown(cam)
-#endif    /* CONFIG_VIDEO_ADV_DEBUG */
-
-
-
-
-/* ------------------------------------------------------------------------*/
 /*
  * PCI interface stuff.
  */
@@ -2070,7 +1990,6 @@ static int cafe_pci_probe(struct pci_dev *pdev,
 					" will try again later.");
 	}
 
-	cafe_dfs_cam_setup(cam);
 	mutex_unlock(&cam->s_mutex);
 	return 0;
 
@@ -2096,7 +2015,6 @@ out:
 static void cafe_shutdown(struct cafe_camera *cam)
 {
 /* FIXME: Make sure we take care of everything here */
-	cafe_dfs_cam_shutdown(cam);
 	if (cam->n_sbufs > 0)
 		/* What if they are still mapped?  Shouldn't be, but... */
 		cafe_free_sio_buffers(cam);
@@ -2216,7 +2134,6 @@ static int __init cafe_init(void)
 
 	printk(KERN_NOTICE "Marvell M88ALP01 'CAFE' Camera Controller version %d\n",
 			CAFE_VERSION);
-	cafe_dfs_setup();
 	ret = pci_register_driver(&cafe_pci_driver);
 	if (ret) {
 		printk(KERN_ERR "Unable to register cafe_ccic driver\n");
@@ -2232,7 +2149,6 @@ static int __init cafe_init(void)
 static void __exit cafe_exit(void)
 {
 	pci_unregister_driver(&cafe_pci_driver);
-	cafe_dfs_shutdown();
 }
 
 module_init(cafe_init);
diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h
index ca2aa6d7e386..1be461a29077 100644
--- a/include/media/v4l2-chip-ident.h
+++ b/include/media/v4l2-chip-ident.h
@@ -146,21 +146,12 @@ enum {
 	/* module tda9840: just ident 9840 */
 	V4L2_IDENT_TDA9840 = 9840,
 
+	/* module cafe_ccic, just ident 8801 */
+	V4L2_IDENT_CAFE = 8801,
+
 	/* module tw9910: just ident 9910 */
 	V4L2_IDENT_TW9910 = 9910,
 
-	/* module cs53132a: just ident 53132 */
-	V4L2_IDENT_CS53l32A = 53132,
-
-	/* module upd64031a: just ident 64031 */
-	V4L2_IDENT_UPD64031A = 64031,
-
-	/* module upd64083: just ident 64083 */
-	V4L2_IDENT_UPD64083 = 64083,
-
-	/* module m52790: just ident 52790 */
-	V4L2_IDENT_M52790 = 52790,
-
 	/* module msp3400: reserved range 34000-34999 and 44000-44999 */
 	V4L2_IDENT_MSPX4XX  = 34000, /* generic MSPX4XX identifier, only
 					use internally (tveeprom.c). */
@@ -237,6 +228,18 @@ enum {
 	V4L2_IDENT_MT9V022IX7ATC	= 45010, /* No way to detect "normal" I77ATx */
 	V4L2_IDENT_MT9V022IX7ATM	= 45015, /* and "lead free" IA7ATx chips */
 	V4L2_IDENT_MT9T031		= 45020,
+
+	/* module cs53132a: just ident 53132 */
+	V4L2_IDENT_CS53l32A = 53132,
+
+	/* module upd64031a: just ident 64031 */
+	V4L2_IDENT_UPD64031A = 64031,
+
+	/* module upd64083: just ident 64083 */
+	V4L2_IDENT_UPD64083 = 64083,
+
+	/* module m52790: just ident 52790 */
+	V4L2_IDENT_M52790 = 52790,
 };
 
 #endif
-- 
cgit v1.2.3


From 14a19c0a2254ba58ed7559e072456ab94c9a2d3c Mon Sep 17 00:00:00 2001
From: Theodore Kilgore <kilgota@auburn.edu>
Date: Wed, 25 Mar 2009 07:13:13 -0300
Subject: V4L/DVB (11213): gspca - sq905c: New subdriver.

The code in the new sq905c.c is based upon the structure of the code in
gspca/sq905.c, and upon the code in libgphoto2/camlibs/digigr8, which supports
the same set of cameras in stillcam mode. I am a co-author of gspca/sq905.c and
I am the sole author of libgphoto2/camlibs/digigr8, which is licensed under the
LGPL. I hereby give myself permission to use my own code from libgphoto2 in
gspca/sq905c.c.

Signed-off-by: Theodore Kilgore <kilgota@auburn.edu>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/gspca/Kconfig  |   9 +
 drivers/media/video/gspca/Makefile |   2 +
 drivers/media/video/gspca/sq905c.c | 328 +++++++++++++++++++++++++++++++++++++
 include/linux/videodev2.h          |   1 +
 4 files changed, 340 insertions(+)
 create mode 100644 drivers/media/video/gspca/sq905c.c

(limited to 'include')

diff --git a/drivers/media/video/gspca/Kconfig b/drivers/media/video/gspca/Kconfig
index a0f05ef5ca70..578dc4ffc965 100644
--- a/drivers/media/video/gspca/Kconfig
+++ b/drivers/media/video/gspca/Kconfig
@@ -185,6 +185,15 @@ config USB_GSPCA_SQ905
 	  To compile this driver as a module, choose M here: the
 	  module will be called gspca_sq905.
 
+config USB_GSPCA_SQ905C
+	tristate "SQ Technologies SQ905C based USB Camera Driver"
+	depends on VIDEO_V4L2 && USB_GSPCA
+	help
+	  Say Y here if you want support for cameras based on the SQ905C chip.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_sq905c.
+
 config USB_GSPCA_STK014
 	tristate "Syntek DV4000 (STK014) USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
diff --git a/drivers/media/video/gspca/Makefile b/drivers/media/video/gspca/Makefile
index b6ec61185736..8a6643e8eb96 100644
--- a/drivers/media/video/gspca/Makefile
+++ b/drivers/media/video/gspca/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_USB_GSPCA_SPCA506)  += gspca_spca506.o
 obj-$(CONFIG_USB_GSPCA_SPCA508)  += gspca_spca508.o
 obj-$(CONFIG_USB_GSPCA_SPCA561)  += gspca_spca561.o
 obj-$(CONFIG_USB_GSPCA_SQ905)    += gspca_sq905.o
+obj-$(CONFIG_USB_GSPCA_SQ905C)   += gspca_sq905c.o
 obj-$(CONFIG_USB_GSPCA_SUNPLUS)  += gspca_sunplus.o
 obj-$(CONFIG_USB_GSPCA_STK014)   += gspca_stk014.o
 obj-$(CONFIG_USB_GSPCA_T613)     += gspca_t613.o
@@ -43,6 +44,7 @@ gspca_spca506-objs  := spca506.o
 gspca_spca508-objs  := spca508.o
 gspca_spca561-objs  := spca561.o
 gspca_sq905-objs    := sq905.o
+gspca_sq905c-objs   := sq905c.o
 gspca_stk014-objs   := stk014.o
 gspca_sunplus-objs  := sunplus.o
 gspca_t613-objs     := t613.o
diff --git a/drivers/media/video/gspca/sq905c.c b/drivers/media/video/gspca/sq905c.c
new file mode 100644
index 000000000000..0bcb74a1b143
--- /dev/null
+++ b/drivers/media/video/gspca/sq905c.c
@@ -0,0 +1,328 @@
+/*
+ * SQ905C subdriver
+ *
+ * Copyright (C) 2009 Theodore Kilgore
+ *
+ * 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
+ * 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
+ */
+
+/*
+ *
+ * This driver uses work done in
+ * libgphoto2/camlibs/digigr8, Copyright (C) Theodore Kilgore.
+ *
+ * This driver has also used as a base the sq905c driver
+ * and may contain code fragments from it.
+ */
+
+#define MODULE_NAME "sq905c"
+
+#include <linux/workqueue.h>
+#include "gspca.h"
+
+MODULE_AUTHOR("Theodore Kilgore <kilgota@auburn.edu>");
+MODULE_DESCRIPTION("GSPCA/SQ905C USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+/* Default timeouts, in ms */
+#define SQ905C_CMD_TIMEOUT 500
+#define SQ905C_DATA_TIMEOUT 1000
+
+/* Maximum transfer size to use. */
+#define SQ905C_MAX_TRANSFER 0x8000
+
+#define FRAME_HEADER_LEN 0x50
+
+/* Commands. These go in the "value" slot. */
+#define SQ905C_CLEAR   0xa0		/* clear everything */
+#define SQ905C_CAPTURE_LOW 0xa040	/* Starts capture at 160x120 */
+#define SQ905C_CAPTURE_MED 0x1440	/* Starts capture at 320x240 */
+#define SQ905C_CAPTURE_HI 0x2840	/* Starts capture at 320x240 */
+
+/* For capture, this must go in the "index" slot. */
+#define SQ905C_CAPTURE_INDEX 0x110f
+
+/* Structure to hold all of our device specific stuff */
+struct sd {
+	struct gspca_dev gspca_dev;	/* !! must be the first item */
+	const struct v4l2_pix_format *cap_mode;
+	/* Driver stuff */
+	struct work_struct work_struct;
+	struct workqueue_struct *work_thread;
+};
+
+/*
+ * Most of these cameras will do 640x480 and 320x240. 160x120 works
+ * in theory but gives very poor output. Therefore, not supported.
+ * The 0x2770:0x9050 cameras have max resolution of 320x240.
+ */
+static struct v4l2_pix_format sq905c_mode[] = {
+	{ 320, 240, V4L2_PIX_FMT_SQ905C, V4L2_FIELD_NONE,
+		.bytesperline = 320,
+		.sizeimage = 320 * 240,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0},
+	{ 640, 480, V4L2_PIX_FMT_SQ905C, V4L2_FIELD_NONE,
+		.bytesperline = 640,
+		.sizeimage = 640 * 480,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0}
+};
+
+/* Send a command to the camera. */
+static int sq905c_command(struct gspca_dev *gspca_dev, u16 command, u16 index)
+{
+	int ret;
+
+	ret = usb_control_msg(gspca_dev->dev,
+			      usb_sndctrlpipe(gspca_dev->dev, 0),
+			      USB_REQ_SYNCH_FRAME,                /* request */
+			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			      command, index, NULL, 0,
+			      SQ905C_CMD_TIMEOUT);
+	if (ret < 0) {
+		PDEBUG(D_ERR, "%s: usb_control_msg failed (%d)",
+			__func__, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* This function is called as a workqueue function and runs whenever the camera
+ * is streaming data. Because it is a workqueue function it is allowed to sleep
+ * so we can use synchronous USB calls. To avoid possible collisions with other
+ * threads attempting to use the camera's USB interface the gspca usb_lock is
+ * used when performing the one USB control operation inside the workqueue,
+ * which tells the camera to close the stream. In practice the only thing
+ * which needs to be protected against is the usb_set_interface call that
+ * gspca makes during stream_off. Otherwise the camera doesn't provide any
+ * controls that the user could try to change.
+ */
+static void sq905c_dostream(struct work_struct *work)
+{
+	struct sd *dev = container_of(work, struct sd, work_struct);
+	struct gspca_dev *gspca_dev = &dev->gspca_dev;
+	struct gspca_frame *frame;
+	int bytes_left; /* bytes remaining in current frame. */
+	int data_len;   /* size to use for the next read. */
+	int act_len;
+	int discarding = 0; /* true if we failed to get space for frame. */
+	int packet_type;
+	int ret;
+	u8 *buffer;
+
+	buffer = kmalloc(SQ905C_MAX_TRANSFER, GFP_KERNEL | GFP_DMA);
+	if (!buffer) {
+		PDEBUG(D_ERR, "Couldn't allocate USB buffer");
+		goto quit_stream;
+	}
+
+	while (gspca_dev->present && gspca_dev->streaming) {
+		if (!gspca_dev->present)
+			goto quit_stream;
+		/* Request the header, which tells the size to download */
+		ret = usb_bulk_msg(gspca_dev->dev,
+				usb_rcvbulkpipe(gspca_dev->dev, 0x81),
+				buffer, FRAME_HEADER_LEN, &act_len,
+				SQ905C_DATA_TIMEOUT);
+		PDEBUG(D_STREAM,
+			"Got %d bytes out of %d for header",
+			act_len, FRAME_HEADER_LEN);
+		if (ret < 0 || act_len < FRAME_HEADER_LEN)
+			goto quit_stream;
+		/* size is read from 4 bytes starting 0x40, little endian */
+		bytes_left = buffer[0x40]|(buffer[0x41]<<8)|(buffer[0x42]<<16)
+					|(buffer[0x43]<<24);
+		PDEBUG(D_STREAM, "bytes_left = 0x%x", bytes_left);
+		/* We keep the header. It has other information, too. */
+		packet_type = FIRST_PACKET;
+		frame = gspca_get_i_frame(gspca_dev);
+		if (frame && !discarding) {
+			gspca_frame_add(gspca_dev, packet_type,
+				frame, buffer, FRAME_HEADER_LEN);
+			} else
+				discarding = 1;
+		while (bytes_left > 0) {
+			data_len = bytes_left > SQ905C_MAX_TRANSFER ?
+				SQ905C_MAX_TRANSFER : bytes_left;
+			if (!gspca_dev->present)
+				goto quit_stream;
+			ret = usb_bulk_msg(gspca_dev->dev,
+				usb_rcvbulkpipe(gspca_dev->dev, 0x81),
+				buffer, data_len, &act_len,
+				SQ905C_DATA_TIMEOUT);
+			if (ret < 0 || act_len < data_len)
+				goto quit_stream;
+			PDEBUG(D_STREAM,
+				"Got %d bytes out of %d for frame",
+				data_len, bytes_left);
+			bytes_left -= data_len;
+			if (bytes_left == 0)
+				packet_type = LAST_PACKET;
+			else
+				packet_type = INTER_PACKET;
+			frame = gspca_get_i_frame(gspca_dev);
+			if (frame && !discarding)
+				gspca_frame_add(gspca_dev, packet_type,
+						frame, buffer, data_len);
+			else
+				discarding = 1;
+		}
+	}
+quit_stream:
+	mutex_lock(&gspca_dev->usb_lock);
+	if (gspca_dev->present)
+		sq905c_command(gspca_dev, SQ905C_CLEAR, 0);
+	mutex_unlock(&gspca_dev->usb_lock);
+	kfree(buffer);
+}
+
+/* This function is called at probe time just before sd_init */
+static int sd_config(struct gspca_dev *gspca_dev,
+		const struct usb_device_id *id)
+{
+	struct cam *cam = &gspca_dev->cam;
+	struct sd *dev = (struct sd *) gspca_dev;
+
+	PDEBUG(D_PROBE,
+		"SQ9050 camera detected"
+		" (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
+	cam->cam_mode = sq905c_mode;
+	cam->nmodes = 2;
+	if (id->idProduct == 0x9050)
+		cam->nmodes = 1;
+	/* We don't use the buffer gspca allocates so make it small. */
+	cam->bulk_size = 32;
+	INIT_WORK(&dev->work_struct, sq905c_dostream);
+	return 0;
+}
+
+/* called on streamoff with alt==0 and on disconnect */
+/* the usb_lock is held at entry - restore on exit */
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+	struct sd *dev = (struct sd *) gspca_dev;
+
+	/* wait for the work queue to terminate */
+	mutex_unlock(&gspca_dev->usb_lock);
+	/* This waits for sq905c_dostream to finish */
+	destroy_workqueue(dev->work_thread);
+	dev->work_thread = NULL;
+	mutex_lock(&gspca_dev->usb_lock);
+}
+
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
+{
+	int ret;
+
+	/* connect to the camera and reset it. */
+	ret = sq905c_command(gspca_dev, SQ905C_CLEAR, 0);
+	return ret;
+}
+
+/* Set up for getting frames. */
+static int sd_start(struct gspca_dev *gspca_dev)
+{
+	struct sd *dev = (struct sd *) gspca_dev;
+	int ret;
+
+	dev->cap_mode = gspca_dev->cam.cam_mode;
+	/* "Open the shutter" and set size, to start capture */
+	switch (gspca_dev->width) {
+	case 640:
+		PDEBUG(D_STREAM, "Start streaming at high resolution");
+		dev->cap_mode++;
+		ret = sq905c_command(gspca_dev, SQ905C_CAPTURE_HI,
+						SQ905C_CAPTURE_INDEX);
+		break;
+	default: /* 320 */
+	PDEBUG(D_STREAM, "Start streaming at medium resolution");
+		ret = sq905c_command(gspca_dev, SQ905C_CAPTURE_MED,
+						SQ905C_CAPTURE_INDEX);
+	}
+
+	if (ret < 0) {
+		PDEBUG(D_ERR, "Start streaming command failed");
+		return ret;
+	}
+	/* Start the workqueue function to do the streaming */
+	dev->work_thread = create_singlethread_workqueue(MODULE_NAME);
+	queue_work(dev->work_thread, &dev->work_struct);
+
+	return 0;
+}
+
+/* Table of supported USB devices */
+static const __devinitdata struct usb_device_id device_table[] = {
+	{USB_DEVICE(0x2770, 0x905c)},
+	{USB_DEVICE(0x2770, 0x9050)},
+	{USB_DEVICE(0x2770, 0x913d)},
+	{}
+};
+
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+	.name   = MODULE_NAME,
+	.config = sd_config,
+	.init   = sd_init,
+	.start  = sd_start,
+	.stop0  = sd_stop0,
+};
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+		const struct usb_device_id *id)
+{
+	return gspca_dev_probe(intf, id,
+			&sd_desc,
+			sizeof(struct sd),
+			THIS_MODULE);
+}
+
+static struct usb_driver sd_driver = {
+	.name       = MODULE_NAME,
+	.id_table   = device_table,
+	.probe      = sd_probe,
+	.disconnect = gspca_disconnect,
+#ifdef CONFIG_PM
+	.suspend = gspca_suspend,
+	.resume  = gspca_resume,
+#endif
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+	int ret;
+
+	ret = usb_register(&sd_driver);
+	if (ret < 0)
+		return ret;
+	PDEBUG(D_PROBE, "registered");
+	return 0;
+}
+
+static void __exit sd_mod_exit(void)
+{
+	usb_deregister(&sd_driver);
+	PDEBUG(D_PROBE, "deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 61f1a4921afd..139d234923cd 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -345,6 +345,7 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
 #define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
 #define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
+#define V4L2_PIX_FMT_SQ905C   v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
 #define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
 #define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16  YVU 4:2:2     */
 
-- 
cgit v1.2.3


From c01f1a5a241604c35f93f10e06253ca70e88ee4e Mon Sep 17 00:00:00 2001
From: Daniel Glöckner <dg@emlix.com>
Date: Thu, 26 Mar 2009 11:31:08 -0300
Subject: V4L/DVB (11242): allow v4l2 drivers to provide a get_unmapped_area
 handler
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Shared memory mappings on nommu machines require a get_unmapped_area
file operation that suggests an address for the mapping. This patch
adds a way for v4l2 drivers to provide this callback.

Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/video/v4l2-dev.c | 19 +++++++++++++++++++
 include/media/v4l2-dev.h       |  2 ++
 2 files changed, 21 insertions(+)

(limited to 'include')

diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index cdc8ce3c4e56..91228b3df07d 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -198,6 +198,23 @@ static long v4l2_unlocked_ioctl(struct file *filp,
 	return vdev->fops->unlocked_ioctl(filp, cmd, arg);
 }
 
+#ifdef CONFIG_MMU
+#define v4l2_get_unmapped_area NULL
+#else
+static unsigned long v4l2_get_unmapped_area(struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
+{
+	struct video_device *vdev = video_devdata(filp);
+
+	if (!vdev->fops->get_unmapped_area)
+		return -ENOSYS;
+	if (video_is_unregistered(vdev))
+		return -ENODEV;
+	return vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
+}
+#endif
+
 static int v4l2_mmap(struct file *filp, struct vm_area_struct *vm)
 {
 	struct video_device *vdev = video_devdata(filp);
@@ -250,6 +267,7 @@ static const struct file_operations v4l2_unlocked_fops = {
 	.read = v4l2_read,
 	.write = v4l2_write,
 	.open = v4l2_open,
+	.get_unmapped_area = v4l2_get_unmapped_area,
 	.mmap = v4l2_mmap,
 	.unlocked_ioctl = v4l2_unlocked_ioctl,
 #ifdef CONFIG_COMPAT
@@ -265,6 +283,7 @@ static const struct file_operations v4l2_fops = {
 	.read = v4l2_read,
 	.write = v4l2_write,
 	.open = v4l2_open,
+	.get_unmapped_area = v4l2_get_unmapped_area,
 	.mmap = v4l2_mmap,
 	.ioctl = v4l2_ioctl,
 #ifdef CONFIG_COMPAT
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index e36faab8459b..2058dd45e915 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -40,6 +40,8 @@ struct v4l2_file_operations {
 	unsigned int (*poll) (struct file *, struct poll_table_struct *);
 	long (*ioctl) (struct file *, unsigned int, unsigned long);
 	long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
+	unsigned long (*get_unmapped_area) (struct file *, unsigned long,
+				unsigned long, unsigned long, unsigned long);
 	int (*mmap) (struct file *, struct vm_area_struct *);
 	int (*open) (struct file *);
 	int (*release) (struct file *);
-- 
cgit v1.2.3


From 4b2ce11a1e3321d31487bf58dfaaef8bb168e5af Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sun, 29 Mar 2009 19:23:16 -0300
Subject: V4L/DVB (11313): v4l2-subdev: add enum_framesizes and
 enum_frameintervals.

These callbacks are needed for omap.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/media/v4l2-subdev.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include')

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index d7a72d2d1f00..1d181b4ccb01 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -124,6 +124,8 @@ struct v4l2_subdev_video_ops {
 	int (*s_fmt)(struct v4l2_subdev *sd, struct v4l2_format *fmt);
 	int (*g_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
 	int (*s_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
+	int (*enum_framesizes)(struct v4l2_subdev *sd, struct v4l2_frmsizeenum *fsize);
+	int (*enum_frameintervals)(struct v4l2_subdev *sd, struct v4l2_frmivalenum *fival);
 };
 
 struct v4l2_subdev_ops {
-- 
cgit v1.2.3


From 702d21c6f6c790b12c4820cd2f29bc8472aed633 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:16 -0400
Subject: reiserfs: add support for mount count incrementing

The following patch adds the fields for tracking mount counts and last
fsck timestamps to the superblock.  It also increments the mount count
on every read-write mount.

Reiserfsprogs 3.6.21 added support for these fields.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/super.c            | 6 +++++-
 include/linux/reiserfs_fs.h    | 6 +++++-
 include/linux/reiserfs_fs_sb.h | 3 +++
 3 files changed, 13 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index f3c820b75829..4ad40afe54e1 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1280,6 +1280,8 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
 		REISERFS_SB(s)->s_mount_state = sb_umount_state(rs);
 		s->s_flags &= ~MS_RDONLY;
 		set_sb_umount_state(rs, REISERFS_ERROR_FS);
+		if (!old_format_only(s))
+			set_sb_mnt_count(rs, sb_mnt_count(rs) + 1);
 		/* mark_buffer_dirty (SB_BUFFER_WITH_SB (s), 1); */
 		journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB(s));
 		REISERFS_SB(s)->s_mount_state = REISERFS_VALID_FS;
@@ -1819,7 +1821,9 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 			} else if (!silent) {
 				reiserfs_info(s, "using 3.5.x disk format\n");
 			}
-		}
+		} else
+			set_sb_mnt_count(rs, sb_mnt_count(rs) + 1);
+
 
 		journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB(s));
 		errval = journal_end(&th, s, 1);
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index bc5114d35e99..ab748a03fe97 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -171,7 +171,11 @@ struct reiserfs_super_block {
 	__le32 s_flags;		/* Right now used only by inode-attributes, if enabled */
 	unsigned char s_uuid[16];	/* filesystem unique identifier */
 	unsigned char s_label[16];	/* filesystem volume label */
-	char s_unused[88];	/* zero filled by mkreiserfs and
+	__le16 s_mnt_count;		/* Count of mounts since last fsck */
+	__le16 s_max_mnt_count;		/* Maximum mounts before check */
+	__le32 s_lastcheck;		/* Timestamp of last fsck */
+	__le32 s_check_interval;	/* Interval between checks */
+	char s_unused[76];	/* zero filled by mkreiserfs and
 				 * reiserfs_convert_objectid_map_v1()
 				 * so any additions must be updated
 				 * there as well. */
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index bda6b562a1e0..ccd38f351530 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -73,6 +73,9 @@ typedef enum {
 #define sb_version(sbp)            (le16_to_cpu((sbp)->s_v1.s_version))
 #define set_sb_version(sbp,v)      ((sbp)->s_v1.s_version = cpu_to_le16(v))
 
+#define sb_mnt_count(sbp)	   (le16_to_cpu((sbp)->s_mnt_count))
+#define set_sb_mnt_count(sbp, v)   ((sbp)->s_mnt_count = cpu_to_le16(v))
+
 #define sb_reserved_for_journal(sbp) \
               (le16_to_cpu((sbp)->s_v1.s_reserved_for_journal))
 #define set_sb_reserved_for_journal(sbp,v) \
-- 
cgit v1.2.3


From 600ed41675d8c384519d8f0b3c76afed39ef2f4b Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:17 -0400
Subject: reiserfs: audit transaction ids to always be unsigned ints

This patch fixes up the reiserfs code such that transaction ids are
always unsigned ints.  In places they can currently be signed ints or
unsigned longs.

The former just causes an annoying clm-2200 warning and may join a
transaction when it should wait.

The latter is just for correctness since the disk format uses a 32-bit
transaction id.  There aren't any runtime problems that result from it
not wrapping at the correct location since the value is truncated
correctly even on big endian systems.  The 0 value might make it to
disk, but the mount-time checks will bump it to 10 itself.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/journal.c          | 46 +++++++++++++++++++++---------------------
 fs/reiserfs/procfs.c           |  4 ++--
 include/linux/reiserfs_fs.h    |  2 +-
 include/linux/reiserfs_fs_i.h  |  2 +-
 include/linux/reiserfs_fs_sb.h |  8 ++++----
 5 files changed, 31 insertions(+), 31 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 9643c3bbeb3b..677bb926e7d6 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -574,7 +574,7 @@ static inline void put_journal_list(struct super_block *s,
 				    struct reiserfs_journal_list *jl)
 {
 	if (jl->j_refcount < 1) {
-		reiserfs_panic(s, "trans id %lu, refcount at %d",
+		reiserfs_panic(s, "trans id %u, refcount at %d",
 			       jl->j_trans_id, jl->j_refcount);
 	}
 	if (--jl->j_refcount == 0)
@@ -599,7 +599,7 @@ static void cleanup_freed_for_journal_list(struct super_block *p_s_sb,
 }
 
 static int journal_list_still_alive(struct super_block *s,
-				    unsigned long trans_id)
+				    unsigned int trans_id)
 {
 	struct reiserfs_journal *journal = SB_JOURNAL(s);
 	struct list_head *entry = &journal->j_journal_list;
@@ -933,9 +933,9 @@ static int flush_older_commits(struct super_block *s,
 	struct reiserfs_journal_list *other_jl;
 	struct reiserfs_journal_list *first_jl;
 	struct list_head *entry;
-	unsigned long trans_id = jl->j_trans_id;
-	unsigned long other_trans_id;
-	unsigned long first_trans_id;
+	unsigned int trans_id = jl->j_trans_id;
+	unsigned int other_trans_id;
+	unsigned int first_trans_id;
 
       find_first:
 	/*
@@ -1014,7 +1014,7 @@ static int flush_commit_list(struct super_block *s,
 	int i;
 	b_blocknr_t bn;
 	struct buffer_head *tbh = NULL;
-	unsigned long trans_id = jl->j_trans_id;
+	unsigned int trans_id = jl->j_trans_id;
 	struct reiserfs_journal *journal = SB_JOURNAL(s);
 	int barrier = 0;
 	int retval = 0;
@@ -1275,7 +1275,7 @@ static void remove_all_from_journal_list(struct super_block *p_s_sb,
 */
 static int _update_journal_header_block(struct super_block *p_s_sb,
 					unsigned long offset,
-					unsigned long trans_id)
+					unsigned int trans_id)
 {
 	struct reiserfs_journal_header *jh;
 	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
@@ -1329,7 +1329,7 @@ static int _update_journal_header_block(struct super_block *p_s_sb,
 
 static int update_journal_header_block(struct super_block *p_s_sb,
 				       unsigned long offset,
-				       unsigned long trans_id)
+				       unsigned int trans_id)
 {
 	return _update_journal_header_block(p_s_sb, offset, trans_id);
 }
@@ -1344,7 +1344,7 @@ static int flush_older_journal_lists(struct super_block *p_s_sb,
 	struct list_head *entry;
 	struct reiserfs_journal_list *other_jl;
 	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
-	unsigned long trans_id = jl->j_trans_id;
+	unsigned int trans_id = jl->j_trans_id;
 
 	/* we know we are the only ones flushing things, no extra race
 	 * protection is required.
@@ -1758,13 +1758,13 @@ static int dirty_one_transaction(struct super_block *s,
 static int kupdate_transactions(struct super_block *s,
 				struct reiserfs_journal_list *jl,
 				struct reiserfs_journal_list **next_jl,
-				unsigned long *next_trans_id,
+				unsigned int *next_trans_id,
 				int num_blocks, int num_trans)
 {
 	int ret = 0;
 	int written = 0;
 	int transactions_flushed = 0;
-	unsigned long orig_trans_id = jl->j_trans_id;
+	unsigned int orig_trans_id = jl->j_trans_id;
 	struct buffer_chunk chunk;
 	struct list_head *entry;
 	struct reiserfs_journal *journal = SB_JOURNAL(s);
@@ -1833,7 +1833,7 @@ static int flush_used_journal_lists(struct super_block *s,
 	int limit = 256;
 	struct reiserfs_journal_list *tjl;
 	struct reiserfs_journal_list *flush_jl;
-	unsigned long trans_id;
+	unsigned int trans_id;
 	struct reiserfs_journal *journal = SB_JOURNAL(s);
 
 	flush_jl = tjl = jl;
@@ -2023,7 +2023,7 @@ static int journal_compare_desc_commit(struct super_block *p_s_sb,
 */
 static int journal_transaction_is_valid(struct super_block *p_s_sb,
 					struct buffer_head *d_bh,
-					unsigned long *oldest_invalid_trans_id,
+					unsigned int *oldest_invalid_trans_id,
 					unsigned long *newest_mount_id)
 {
 	struct reiserfs_journal_desc *desc;
@@ -2124,18 +2124,18 @@ static void brelse_array(struct buffer_head **heads, int num)
 static int journal_read_transaction(struct super_block *p_s_sb,
 				    unsigned long cur_dblock,
 				    unsigned long oldest_start,
-				    unsigned long oldest_trans_id,
+				    unsigned int oldest_trans_id,
 				    unsigned long newest_mount_id)
 {
 	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
 	struct reiserfs_journal_desc *desc;
 	struct reiserfs_journal_commit *commit;
-	unsigned long trans_id = 0;
+	unsigned int trans_id = 0;
 	struct buffer_head *c_bh;
 	struct buffer_head *d_bh;
 	struct buffer_head **log_blocks = NULL;
 	struct buffer_head **real_blocks = NULL;
-	unsigned long trans_offset;
+	unsigned int trans_offset;
 	int i;
 	int trans_half;
 
@@ -2356,8 +2356,8 @@ static int journal_read(struct super_block *p_s_sb)
 {
 	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
 	struct reiserfs_journal_desc *desc;
-	unsigned long oldest_trans_id = 0;
-	unsigned long oldest_invalid_trans_id = 0;
+	unsigned int oldest_trans_id = 0;
+	unsigned int oldest_invalid_trans_id = 0;
 	time_t start;
 	unsigned long oldest_start = 0;
 	unsigned long cur_dblock = 0;
@@ -2970,7 +2970,7 @@ static void wake_queued_writers(struct super_block *s)
 		wake_up(&journal->j_join_wait);
 }
 
-static void let_transaction_grow(struct super_block *sb, unsigned long trans_id)
+static void let_transaction_grow(struct super_block *sb, unsigned int trans_id)
 {
 	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	unsigned long bcount = journal->j_bcount;
@@ -3001,7 +3001,7 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
 			      int join)
 {
 	time_t now = get_seconds();
-	int old_trans_id;
+	unsigned int old_trans_id;
 	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
 	struct reiserfs_transaction_handle myth;
 	int sched_count = 0;
@@ -3824,7 +3824,7 @@ static int __commit_trans_jl(struct inode *inode, unsigned long id,
 
 int reiserfs_commit_for_inode(struct inode *inode)
 {
-	unsigned long id = REISERFS_I(inode)->i_trans_id;
+	unsigned int id = REISERFS_I(inode)->i_trans_id;
 	struct reiserfs_journal_list *jl = REISERFS_I(inode)->i_jl;
 
 	/* for the whole inode, assume unset id means it was
@@ -3938,7 +3938,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	struct reiserfs_journal_list *jl, *temp_jl;
 	struct list_head *entry, *safe;
 	unsigned long jindex;
-	unsigned long commit_trans_id;
+	unsigned int commit_trans_id;
 	int trans_half;
 
 	BUG_ON(th->t_refcount > 1);
@@ -3946,7 +3946,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 
 	/* protect flush_older_commits from doing mistakes if the
            transaction ID counter gets overflowed.  */
-	if (th->t_trans_id == ~0UL)
+	if (th->t_trans_id == ~0U)
 		flags |= FLUSH_ALL | COMMIT_NOW | WAIT;
 	flush = flags & FLUSH_ALL;
 	wait_on_commit = flags & WAIT;
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index 37173fa07d15..370988efc8ad 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -321,7 +321,7 @@ static int show_journal(struct seq_file *m, struct super_block *sb)
 		   /* incore fields */
 		   "j_1st_reserved_block: \t%i\n"
 		   "j_state: \t%li\n"
-		   "j_trans_id: \t%lu\n"
+		   "j_trans_id: \t%u\n"
 		   "j_mount_id: \t%lu\n"
 		   "j_start: \t%lu\n"
 		   "j_len: \t%lu\n"
@@ -329,7 +329,7 @@ static int show_journal(struct seq_file *m, struct super_block *sb)
 		   "j_wcount: \t%i\n"
 		   "j_bcount: \t%lu\n"
 		   "j_first_unflushed_offset: \t%lu\n"
-		   "j_last_flush_trans_id: \t%lu\n"
+		   "j_last_flush_trans_id: \t%u\n"
 		   "j_trans_start_time: \t%li\n"
 		   "j_list_bitmap_index: \t%i\n"
 		   "j_must_wait: \t%i\n"
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index ab748a03fe97..bd52b949f8c9 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1676,7 +1676,7 @@ struct reiserfs_transaction_handle {
 	int t_refcount;
 	int t_blocks_logged;	/* number of blocks this writer has logged */
 	int t_blocks_allocated;	/* number of blocks this writer allocated */
-	unsigned long t_trans_id;	/* sanity check, equals the current trans id */
+	unsigned int t_trans_id;	/* sanity check, equals the current trans id */
 	void *t_handle_save;	/* save existing current->journal_info */
 	unsigned displace_new_blocks:1;	/* if new block allocation occurres, that block
 					   should be displaced from others */
diff --git a/include/linux/reiserfs_fs_i.h b/include/linux/reiserfs_fs_i.h
index ce3663fb0101..201dd910b042 100644
--- a/include/linux/reiserfs_fs_i.h
+++ b/include/linux/reiserfs_fs_i.h
@@ -51,7 +51,7 @@ struct reiserfs_inode_info {
 	/* we use these for fsync or O_SYNC to decide which transaction
 	 ** needs to be committed in order for this inode to be properly
 	 ** flushed */
-	unsigned long i_trans_id;
+	unsigned int i_trans_id;
 	struct reiserfs_journal_list *i_jl;
 	struct mutex i_mmap;
 #ifdef CONFIG_REISERFS_FS_POSIX_ACL
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index ccd38f351530..12fc2a0d13be 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -156,7 +156,7 @@ struct reiserfs_journal_list {
 	atomic_t j_commit_left;
 	atomic_t j_older_commits_done;	/* all commits older than this on disk */
 	struct mutex j_commit_mutex;
-	unsigned long j_trans_id;
+	unsigned int j_trans_id;
 	time_t j_timestamp;
 	struct reiserfs_list_bitmap *j_list_bitmap;
 	struct buffer_head *j_commit_bh;	/* commit buffer head */
@@ -185,7 +185,7 @@ struct reiserfs_journal {
 	int j_1st_reserved_block;	/* first block on s_dev of reserved area journal */
 
 	unsigned long j_state;
-	unsigned long j_trans_id;
+	unsigned int j_trans_id;
 	unsigned long j_mount_id;
 	unsigned long j_start;	/* start of current waiting commit (index into j_ap_blocks) */
 	unsigned long j_len;	/* length of current waiting commit */
@@ -226,10 +226,10 @@ struct reiserfs_journal {
 	int j_num_work_lists;	/* number that need attention from kreiserfsd */
 
 	/* debugging to make sure things are flushed in order */
-	int j_last_flush_id;
+	unsigned int j_last_flush_id;
 
 	/* debugging to make sure things are committed in order */
-	int j_last_commit_id;
+	unsigned int j_last_commit_id;
 
 	struct list_head j_bitmap_nodes;
 	struct list_head j_dirty_buffers;
-- 
cgit v1.2.3


From eba00305591714f1d85ccad1afbf58259c2197b4 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:18 -0400
Subject: reiserfs: use buffer_info for leaf_paste_entries

This patch makes leaf_paste_entries more consistent with respect to the
other leaf operations.  Using buffer_info instead of buffer_head
directly allows us to get a superblock pointer for use in error
handling.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/do_balan.c      | 17 +++++++----------
 fs/reiserfs/lbalance.c      |  5 +++--
 include/linux/reiserfs_fs.h |  2 +-
 3 files changed, 11 insertions(+), 13 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 2f87f5b14630..99f80538c4bf 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -449,8 +449,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 							/* when we have merge directory item, pos_in_item has been changed too */
 
 							/* paste new directory entry. 1 is entry number */
-							leaf_paste_entries(bi.
-									   bi_bh,
+							leaf_paste_entries(&bi,
 									   n +
 									   item_pos
 									   -
@@ -699,7 +698,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 							   n + item_pos -
 							   ret_val);
 					if (is_direntry_le_ih(pasted))
-						leaf_paste_entries(bi.bi_bh,
+						leaf_paste_entries(&bi,
 								   n +
 								   item_pos -
 								   ret_val,
@@ -894,8 +893,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 							     tb->insert_size[0],
 							     body, zeros_num);
 							/* paste entry */
-							leaf_paste_entries(bi.
-									   bi_bh,
+							leaf_paste_entries(&bi,
 									   0,
 									   paste_entry_position,
 									   1,
@@ -1096,7 +1094,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 							   tb->rnum[0]);
 					if (is_direntry_le_ih(pasted)
 					    && pos_in_item >= 0) {
-						leaf_paste_entries(bi.bi_bh,
+						leaf_paste_entries(&bi,
 								   item_pos -
 								   n +
 								   tb->rnum[0],
@@ -1339,8 +1337,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 							     tb->insert_size[0],
 							     body, zeros_num);
 							/* paste new directory entry */
-							leaf_paste_entries(bi.
-									   bi_bh,
+							leaf_paste_entries(&bi,
 									   0,
 									   pos_in_item
 									   -
@@ -1505,7 +1502,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 							   item_pos - n +
 							   snum[i]);
 					if (is_direntry_le_ih(pasted)) {
-						leaf_paste_entries(bi.bi_bh,
+						leaf_paste_entries(&bi,
 								   item_pos -
 								   n + snum[i],
 								   pos_in_item,
@@ -1606,7 +1603,7 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 								     zeros_num);
 
 						/* paste entry */
-						leaf_paste_entries(bi.bi_bh,
+						leaf_paste_entries(&bi,
 								   item_pos,
 								   pos_in_item,
 								   1,
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index 6de060a6aa7f..41bdd8c75887 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -111,7 +111,7 @@ static void leaf_copy_dir_entries(struct buffer_info *dest_bi,
 	item_num_in_dest =
 	    (last_first == FIRST_TO_LAST) ? (B_NR_ITEMS(dest) - 1) : 0;
 
-	leaf_paste_entries(dest_bi->bi_bh, item_num_in_dest,
+	leaf_paste_entries(dest_bi, item_num_in_dest,
 			   (last_first ==
 			    FIRST_TO_LAST) ? I_ENTRY_COUNT(B_N_PITEM_HEAD(dest,
 									  item_num_in_dest))
@@ -1191,7 +1191,7 @@ static void leaf_delete_items_entirely(struct buffer_info *bi,
 }
 
 /* paste new_entry_count entries (new_dehs, records) into position before to item_num-th item */
-void leaf_paste_entries(struct buffer_head *bh,
+void leaf_paste_entries(struct buffer_info *bi,
 			int item_num,
 			int before,
 			int new_entry_count,
@@ -1203,6 +1203,7 @@ void leaf_paste_entries(struct buffer_head *bh,
 	struct reiserfs_de_head *deh;
 	char *insert_point;
 	int i, old_entry_num;
+	struct buffer_head *bh = bi->bi_bh;
 
 	if (new_entry_count == 0)
 		return;
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index bd52b949f8c9..65bb5e3e3abe 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -2026,7 +2026,7 @@ void leaf_paste_in_buffer(struct buffer_info *bi, int pasted_item_num,
 			  int zeros_number);
 void leaf_cut_from_buffer(struct buffer_info *bi, int cut_item_num,
 			  int pos_in_item, int cut_size);
-void leaf_paste_entries(struct buffer_head *bh, int item_num, int before,
+void leaf_paste_entries(struct buffer_info *bi, int item_num, int before,
 			int new_entry_count, struct reiserfs_de_head *new_dehs,
 			const char *records, int paste_size);
 /* ibalance.c */
-- 
cgit v1.2.3


From 45b03d5e8e674eb6555b767e1c8eb40b671ff892 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:21 -0400
Subject: reiserfs: rework reiserfs_warning

ReiserFS warnings can be somewhat inconsistent.
In some cases:
 * a unique identifier may be associated with it
 * the function name may be included
 * the device may be printed separately

This patch aims to make warnings more consistent. reiserfs_warning() prints
the device name, so printing it a second time is not required. The function
name for a warning is always helpful in debugging, so it is now automatically
inserted into the output. Hans has stated that every warning should have
a unique identifier. Some cases lack them, others really shouldn't have them.
reiserfs_warning() now expects an id associated with each message. In the
rare case where one isn't needed, "" will suffice.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/bitmap.c          |  52 ++++-----
 fs/reiserfs/do_balan.c        |  40 +++----
 fs/reiserfs/file.c            |   2 +-
 fs/reiserfs/fix_node.c        |  14 +--
 fs/reiserfs/inode.c           |  60 +++++-----
 fs/reiserfs/item_ops.c        |  60 +++++-----
 fs/reiserfs/journal.c         | 174 +++++++++++++++-------------
 fs/reiserfs/lbalance.c        |  12 +-
 fs/reiserfs/namei.c           |  45 ++++----
 fs/reiserfs/objectid.c        |   5 +-
 fs/reiserfs/prints.c          |  11 +-
 fs/reiserfs/procfs.c          |   5 +-
 fs/reiserfs/stree.c           | 107 ++++++++----------
 fs/reiserfs/super.c           | 257 ++++++++++++++++++++++--------------------
 fs/reiserfs/tail_conversion.c |   6 +-
 fs/reiserfs/xattr.c           |  21 ++--
 include/linux/reiserfs_fs.h   |   9 +-
 17 files changed, 454 insertions(+), 426 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index 98b92a3da14a..51b116103041 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -64,8 +64,8 @@ int is_reusable(struct super_block *s, b_blocknr_t block, int bit_value)
 	unsigned int bmap_count = reiserfs_bmap_count(s);
 
 	if (block == 0 || block >= SB_BLOCK_COUNT(s)) {
-		reiserfs_warning(s,
-				 "vs-4010: is_reusable: block number is out of range %lu (%u)",
+		reiserfs_warning(s, "vs-4010",
+				 "block number is out of range %lu (%u)",
 				 block, SB_BLOCK_COUNT(s));
 		return 0;
 	}
@@ -79,30 +79,29 @@ int is_reusable(struct super_block *s, b_blocknr_t block, int bit_value)
 		b_blocknr_t bmap1 = REISERFS_SB(s)->s_sbh->b_blocknr + 1;
 		if (block >= bmap1 &&
 		    block <= bmap1 + bmap_count) {
-			reiserfs_warning(s, "vs: 4019: is_reusable: "
-					 "bitmap block %lu(%u) can't be freed or reused",
+			reiserfs_warning(s, "vs-4019", "bitmap block %lu(%u) "
+					 "can't be freed or reused",
 					 block, bmap_count);
 			return 0;
 		}
 	} else {
 		if (offset == 0) {
-			reiserfs_warning(s, "vs: 4020: is_reusable: "
-					 "bitmap block %lu(%u) can't be freed or reused",
+			reiserfs_warning(s, "vs-4020", "bitmap block %lu(%u) "
+					 "can't be freed or reused",
 					 block, bmap_count);
 			return 0;
 		}
 	}
 
 	if (bmap >= bmap_count) {
-		reiserfs_warning(s,
-				 "vs-4030: is_reusable: there is no so many bitmap blocks: "
-				 "block=%lu, bitmap_nr=%u", block, bmap);
+		reiserfs_warning(s, "vs-4030", "bitmap for requested block "
+				 "is out of range: block=%lu, bitmap_nr=%u",
+				 block, bmap);
 		return 0;
 	}
 
 	if (bit_value == 0 && block == SB_ROOT_BLOCK(s)) {
-		reiserfs_warning(s,
-				 "vs-4050: is_reusable: this is root block (%u), "
+		reiserfs_warning(s, "vs-4050", "this is root block (%u), "
 				 "it must be busy", SB_ROOT_BLOCK(s));
 		return 0;
 	}
@@ -154,8 +153,8 @@ static int scan_bitmap_block(struct reiserfs_transaction_handle *th,
 /* - I mean `a window of zero bits' as in description of this function - Zam. */
 
 	if (!bi) {
-		reiserfs_warning(s, "NULL bitmap info pointer for bitmap %d",
-				 bmap_n);
+		reiserfs_warning(s, "jdm-4055", "NULL bitmap info pointer "
+				 "for bitmap %d", bmap_n);
 		return 0;
 	}
 
@@ -400,11 +399,8 @@ static void _reiserfs_free_block(struct reiserfs_transaction_handle *th,
 	get_bit_address(s, block, &nr, &offset);
 
 	if (nr >= reiserfs_bmap_count(s)) {
-		reiserfs_warning(s, "vs-4075: reiserfs_free_block: "
-				 "block %lu is out of range on %s "
-				 "(nr=%u,max=%u)", block,
-				 reiserfs_bdevname(s), nr,
-				 reiserfs_bmap_count(s));
+		reiserfs_warning(s, "vs-4075", "block %lu is out of range",
+				 block);
 		return;
 	}
 
@@ -416,9 +412,8 @@ static void _reiserfs_free_block(struct reiserfs_transaction_handle *th,
 
 	/* clear bit for the given block in bit map */
 	if (!reiserfs_test_and_clear_le_bit(offset, bmbh->b_data)) {
-		reiserfs_warning(s, "vs-4080: reiserfs_free_block: "
-				 "free_block (%s:%lu)[dev:blocknr]: bit already cleared",
-				 reiserfs_bdevname(s), block);
+		reiserfs_warning(s, "vs-4080",
+				 "block %lu: bit already cleared", block);
 	}
 	apbi[nr].free_count++;
 	journal_mark_dirty(th, s, bmbh);
@@ -477,9 +472,8 @@ static void __discard_prealloc(struct reiserfs_transaction_handle *th,
 	BUG_ON(!th->t_trans_id);
 #ifdef CONFIG_REISERFS_CHECK
 	if (ei->i_prealloc_count < 0)
-		reiserfs_warning(th->t_super,
-				 "zam-4001:%s: inode has negative prealloc blocks count.",
-				 __func__);
+		reiserfs_warning(th->t_super, "zam-4001",
+				 "inode has negative prealloc blocks count.");
 #endif
 	while (ei->i_prealloc_count > 0) {
 		reiserfs_free_prealloc_block(th, inode, ei->i_prealloc_block);
@@ -515,9 +509,9 @@ void reiserfs_discard_all_prealloc(struct reiserfs_transaction_handle *th)
 				i_prealloc_list);
 #ifdef CONFIG_REISERFS_CHECK
 		if (!ei->i_prealloc_count) {
-			reiserfs_warning(th->t_super,
-					 "zam-4001:%s: inode is in prealloc list but has no preallocated blocks.",
-					 __func__);
+			reiserfs_warning(th->t_super, "zam-4001",
+					 "inode is in prealloc list but has "
+					 "no preallocated blocks.");
 		}
 #endif
 		__discard_prealloc(th, ei);
@@ -631,8 +625,8 @@ int reiserfs_parse_alloc_options(struct super_block *s, char *options)
 			continue;
 		}
 
-		reiserfs_warning(s, "zam-4001: %s : unknown option - %s",
-				 __func__, this_char);
+		reiserfs_warning(s, "zam-4001", "unknown option - %s",
+				 this_char);
 		return 1;
 	}
 
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 99f80538c4bf..f701f37ddf98 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -1752,15 +1752,16 @@ static void store_thrown(struct tree_balance *tb, struct buffer_head *bh)
 	int i;
 
 	if (buffer_dirty(bh))
-		reiserfs_warning(tb->tb_sb,
-				 "store_thrown deals with dirty buffer");
+		reiserfs_warning(tb->tb_sb, "reiserfs-12320",
+				 "called with dirty buffer");
 	for (i = 0; i < ARRAY_SIZE(tb->thrown); i++)
 		if (!tb->thrown[i]) {
 			tb->thrown[i] = bh;
 			get_bh(bh);	/* free_thrown puts this */
 			return;
 		}
-	reiserfs_warning(tb->tb_sb, "store_thrown: too many thrown buffers");
+	reiserfs_warning(tb->tb_sb, "reiserfs-12321",
+			 "too many thrown buffers");
 }
 
 static void free_thrown(struct tree_balance *tb)
@@ -1771,8 +1772,8 @@ static void free_thrown(struct tree_balance *tb)
 		if (tb->thrown[i]) {
 			blocknr = tb->thrown[i]->b_blocknr;
 			if (buffer_dirty(tb->thrown[i]))
-				reiserfs_warning(tb->tb_sb,
-						 "free_thrown deals with dirty buffer %d",
+				reiserfs_warning(tb->tb_sb, "reiserfs-12322",
+						 "called with dirty buffer %d",
 						 blocknr);
 			brelse(tb->thrown[i]);	/* incremented in store_thrown */
 			reiserfs_free_block(tb->transaction_handle, NULL,
@@ -1877,13 +1878,12 @@ static void check_internal_node(struct super_block *s, struct buffer_head *bh,
 	}
 }
 
-static int locked_or_not_in_tree(struct buffer_head *bh, char *which)
+static int locked_or_not_in_tree(struct tree_balance *tb,
+				  struct buffer_head *bh, char *which)
 {
 	if ((!buffer_journal_prepared(bh) && buffer_locked(bh)) ||
 	    !B_IS_IN_TREE(bh)) {
-		reiserfs_warning(NULL,
-				 "vs-12339: locked_or_not_in_tree: %s (%b)",
-				 which, bh);
+		reiserfs_warning(tb->tb_sb, "vs-12339", "%s (%b)", which, bh);
 		return 1;
 	}
 	return 0;
@@ -1902,18 +1902,19 @@ static int check_before_balancing(struct tree_balance *tb)
 	/* double check that buffers that we will modify are unlocked. (fix_nodes should already have
 	   prepped all of these for us). */
 	if (tb->lnum[0]) {
-		retval |= locked_or_not_in_tree(tb->L[0], "L[0]");
-		retval |= locked_or_not_in_tree(tb->FL[0], "FL[0]");
-		retval |= locked_or_not_in_tree(tb->CFL[0], "CFL[0]");
+		retval |= locked_or_not_in_tree(tb, tb->L[0], "L[0]");
+		retval |= locked_or_not_in_tree(tb, tb->FL[0], "FL[0]");
+		retval |= locked_or_not_in_tree(tb, tb->CFL[0], "CFL[0]");
 		check_leaf(tb->L[0]);
 	}
 	if (tb->rnum[0]) {
-		retval |= locked_or_not_in_tree(tb->R[0], "R[0]");
-		retval |= locked_or_not_in_tree(tb->FR[0], "FR[0]");
-		retval |= locked_or_not_in_tree(tb->CFR[0], "CFR[0]");
+		retval |= locked_or_not_in_tree(tb, tb->R[0], "R[0]");
+		retval |= locked_or_not_in_tree(tb, tb->FR[0], "FR[0]");
+		retval |= locked_or_not_in_tree(tb, tb->CFR[0], "CFR[0]");
 		check_leaf(tb->R[0]);
 	}
-	retval |= locked_or_not_in_tree(PATH_PLAST_BUFFER(tb->tb_path), "S[0]");
+	retval |= locked_or_not_in_tree(tb, PATH_PLAST_BUFFER(tb->tb_path),
+					"S[0]");
 	check_leaf(PATH_PLAST_BUFFER(tb->tb_path));
 
 	return retval;
@@ -1952,7 +1953,7 @@ static void check_after_balance_leaf(struct tree_balance *tb)
 					       PATH_H_POSITION(tb->tb_path,
 							       1))));
 		print_cur_tb("12223");
-		reiserfs_warning(tb->tb_sb,
+		reiserfs_warning(tb->tb_sb, "reiserfs-12363",
 				 "B_FREE_SPACE (PATH_H_PBUFFER(tb->tb_path,0)) = %d; "
 				 "MAX_CHILD_SIZE (%d) - dc_size( %y, %d ) [%d] = %d",
 				 left,
@@ -2104,9 +2105,8 @@ void do_balance(struct tree_balance *tb,	/* tree_balance structure */
 	}
 	/* if we have no real work to do  */
 	if (!tb->insert_size[0]) {
-		reiserfs_warning(tb->tb_sb,
-				 "PAP-12350: do_balance: insert_size == 0, mode == %c",
-				 flag);
+		reiserfs_warning(tb->tb_sb, "PAP-12350",
+				 "insert_size == 0, mode == %c", flag);
 		unfix_nodes(tb);
 		return;
 	}
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 33408417038c..47bab8978be1 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -76,7 +76,7 @@ static int reiserfs_file_release(struct inode *inode, struct file *filp)
 			 * and let the admin know what is going on.
 			 */
 			igrab(inode);
-			reiserfs_warning(inode->i_sb,
+			reiserfs_warning(inode->i_sb, "clm-9001",
 					 "pinning inode %lu because the "
 					 "preallocation can't be freed",
 					 inode->i_ino);
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 07d05e0842b7..59735a9e2349 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -496,8 +496,8 @@ static int get_num_ver(int mode, struct tree_balance *tb, int h,
 		snum012[needed_nodes - 1 + 3] = units;
 
 		if (needed_nodes > 2)
-			reiserfs_warning(tb->tb_sb, "vs-8111: get_num_ver: "
-					 "split_item_position is out of boundary");
+			reiserfs_warning(tb->tb_sb, "vs-8111",
+					 "split_item_position is out of range");
 		snum012[needed_nodes - 1]++;
 		split_item_positions[needed_nodes - 1] = i;
 		needed_nodes++;
@@ -533,8 +533,8 @@ static int get_num_ver(int mode, struct tree_balance *tb, int h,
 
 		if (vn->vn_vi[split_item_num].vi_index != TYPE_DIRENTRY &&
 		    vn->vn_vi[split_item_num].vi_index != TYPE_INDIRECT)
-			reiserfs_warning(tb->tb_sb, "vs-8115: get_num_ver: not "
-					 "directory or indirect item");
+			reiserfs_warning(tb->tb_sb, "vs-8115",
+					 "not directory or indirect item");
 	}
 
 	/* now we know S2bytes, calculate S1bytes */
@@ -2268,9 +2268,9 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *p_s_tb)
 #ifdef CONFIG_REISERFS_CHECK
 			repeat_counter++;
 			if ((repeat_counter % 10000) == 0) {
-				reiserfs_warning(p_s_tb->tb_sb,
-						 "wait_tb_buffers_until_released(): too many "
-						 "iterations waiting for buffer to unlock "
+				reiserfs_warning(p_s_tb->tb_sb, "reiserfs-8200",
+						 "too many iterations waiting "
+						 "for buffer to unlock "
 						 "(%b)", locked);
 
 				/* Don't loop forever.  Try to recover from possible error. */
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 55fce92cdf18..95157762b1bf 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -842,7 +842,9 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 				if (retval) {
 					if (retval != -ENOSPC)
 						reiserfs_warning(inode->i_sb,
-								 "clm-6004: convert tail failed inode %lu, error %d",
+							 "clm-6004",
+							 "convert tail failed "
+							 "inode %lu, error %d",
 								 inode->i_ino,
 								 retval);
 					if (allocated_block_nr) {
@@ -1006,8 +1008,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 			goto failure;
 		}
 		if (retval == POSITION_FOUND) {
-			reiserfs_warning(inode->i_sb,
-					 "vs-825: reiserfs_get_block: "
+			reiserfs_warning(inode->i_sb, "vs-825",
 					 "%K should not be found", &key);
 			retval = -EEXIST;
 			if (allocated_block_nr)
@@ -1332,9 +1333,9 @@ void reiserfs_update_sd_size(struct reiserfs_transaction_handle *th,
 		/* look for the object's stat data */
 		retval = search_item(inode->i_sb, &key, &path);
 		if (retval == IO_ERROR) {
-			reiserfs_warning(inode->i_sb,
-					 "vs-13050: reiserfs_update_sd: "
-					 "i/o failure occurred trying to update %K stat data",
+			reiserfs_warning(inode->i_sb, "vs-13050",
+					 "i/o failure occurred trying to "
+					 "update %K stat data",
 					 &key);
 			return;
 		}
@@ -1345,9 +1346,9 @@ void reiserfs_update_sd_size(struct reiserfs_transaction_handle *th,
 				/*reiserfs_warning (inode->i_sb, "vs-13050: reiserfs_update_sd: i_nlink == 0, stat data not found"); */
 				return;
 			}
-			reiserfs_warning(inode->i_sb,
-					 "vs-13060: reiserfs_update_sd: "
-					 "stat data of object %k (nlink == %d) not found (pos %d)",
+			reiserfs_warning(inode->i_sb, "vs-13060",
+					 "stat data of object %k (nlink == %d) "
+					 "not found (pos %d)",
 					 INODE_PKEY(inode), inode->i_nlink,
 					 pos);
 			reiserfs_check_path(&path);
@@ -1424,10 +1425,9 @@ void reiserfs_read_locked_inode(struct inode *inode,
 	/* look for the object's stat data */
 	retval = search_item(inode->i_sb, &key, &path_to_sd);
 	if (retval == IO_ERROR) {
-		reiserfs_warning(inode->i_sb,
-				 "vs-13070: reiserfs_read_locked_inode: "
-				 "i/o failure occurred trying to find stat data of %K",
-				 &key);
+		reiserfs_warning(inode->i_sb, "vs-13070",
+				 "i/o failure occurred trying to find "
+				 "stat data of %K", &key);
 		reiserfs_make_bad_inode(inode);
 		return;
 	}
@@ -1457,8 +1457,7 @@ void reiserfs_read_locked_inode(struct inode *inode,
 	   during mount (fs/reiserfs/super.c:finish_unfinished()). */
 	if ((inode->i_nlink == 0) &&
 	    !REISERFS_SB(inode->i_sb)->s_is_unlinked_ok) {
-		reiserfs_warning(inode->i_sb,
-				 "vs-13075: reiserfs_read_locked_inode: "
+		reiserfs_warning(inode->i_sb, "vs-13075",
 				 "dead inode read from disk %K. "
 				 "This is likely to be race with knfsd. Ignore",
 				 &key);
@@ -1555,7 +1554,7 @@ struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
 	 */
 	if (fh_type > fh_len) {
 		if (fh_type != 6 || fh_len != 5)
-			reiserfs_warning(sb,
+			reiserfs_warning(sb, "reiserfs-13077",
 				"nfsd/reiserfs, fhtype=%d, len=%d - odd",
 				fh_type, fh_len);
 		fh_type = 5;
@@ -1680,13 +1679,13 @@ static int reiserfs_new_directory(struct reiserfs_transaction_handle *th,
 	/* look for place in the tree for new item */
 	retval = search_item(sb, &key, path);
 	if (retval == IO_ERROR) {
-		reiserfs_warning(sb, "vs-13080: reiserfs_new_directory: "
+		reiserfs_warning(sb, "vs-13080",
 				 "i/o failure occurred creating new directory");
 		return -EIO;
 	}
 	if (retval == ITEM_FOUND) {
 		pathrelse(path);
-		reiserfs_warning(sb, "vs-13070: reiserfs_new_directory: "
+		reiserfs_warning(sb, "vs-13070",
 				 "object with this key exists (%k)",
 				 &(ih->ih_key));
 		return -EEXIST;
@@ -1720,13 +1719,13 @@ static int reiserfs_new_symlink(struct reiserfs_transaction_handle *th, struct i
 	/* look for place in the tree for new item */
 	retval = search_item(sb, &key, path);
 	if (retval == IO_ERROR) {
-		reiserfs_warning(sb, "vs-13080: reiserfs_new_symlinik: "
+		reiserfs_warning(sb, "vs-13080",
 				 "i/o failure occurred creating new symlink");
 		return -EIO;
 	}
 	if (retval == ITEM_FOUND) {
 		pathrelse(path);
-		reiserfs_warning(sb, "vs-13080: reiserfs_new_symlink: "
+		reiserfs_warning(sb, "vs-13080",
 				 "object with this key exists (%k)",
 				 &(ih->ih_key));
 		return -EEXIST;
@@ -1927,7 +1926,8 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 			goto out_inserted_sd;
 		}
 	} else if (inode->i_sb->s_flags & MS_POSIXACL) {
-		reiserfs_warning(inode->i_sb, "ACLs aren't enabled in the fs, "
+		reiserfs_warning(inode->i_sb, "jdm-13090",
+				 "ACLs aren't enabled in the fs, "
 				 "but vfs thinks they are!");
 	} else if (is_reiserfs_priv_object(dir)) {
 		reiserfs_mark_inode_private(inode);
@@ -2044,8 +2044,8 @@ static int grab_tail_page(struct inode *p_s_inode,
 		 ** I've screwed up the code to find the buffer, or the code to
 		 ** call prepare_write
 		 */
-		reiserfs_warning(p_s_inode->i_sb,
-				 "clm-6000: error reading block %lu on dev %s",
+		reiserfs_warning(p_s_inode->i_sb, "clm-6000",
+				 "error reading block %lu on dev %s",
 				 bh->b_blocknr,
 				 reiserfs_bdevname(p_s_inode->i_sb));
 		error = -EIO;
@@ -2089,8 +2089,8 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
 			// and get_block_create_0 could not find a block to read in,
 			// which is ok.
 			if (error != -ENOENT)
-				reiserfs_warning(p_s_inode->i_sb,
-						 "clm-6001: grab_tail_page failed %d",
+				reiserfs_warning(p_s_inode->i_sb, "clm-6001",
+						 "grab_tail_page failed %d",
 						 error);
 			page = NULL;
 			bh = NULL;
@@ -2208,9 +2208,8 @@ static int map_block_for_writepage(struct inode *inode,
 	/* we've found an unformatted node */
 	if (indirect_item_found(retval, ih)) {
 		if (bytes_copied > 0) {
-			reiserfs_warning(inode->i_sb,
-					 "clm-6002: bytes_copied %d",
-					 bytes_copied);
+			reiserfs_warning(inode->i_sb, "clm-6002",
+					 "bytes_copied %d", bytes_copied);
 		}
 		if (!get_block_num(item, pos_in_item)) {
 			/* crap, we are writing to a hole */
@@ -2267,9 +2266,8 @@ static int map_block_for_writepage(struct inode *inode,
 			goto research;
 		}
 	} else {
-		reiserfs_warning(inode->i_sb,
-				 "clm-6003: bad item inode %lu, device %s",
-				 inode->i_ino, reiserfs_bdevname(inode->i_sb));
+		reiserfs_warning(inode->i_sb, "clm-6003",
+				 "bad item inode %lu", inode->i_ino);
 		retval = -EIO;
 		goto out;
 	}
diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
index 9475557ab499..8a11cf39f57b 100644
--- a/fs/reiserfs/item_ops.c
+++ b/fs/reiserfs/item_ops.c
@@ -97,7 +97,8 @@ static int sd_unit_num(struct virtual_item *vi)
 
 static void sd_print_vi(struct virtual_item *vi)
 {
-	reiserfs_warning(NULL, "STATDATA, index %d, type 0x%x, %h",
+	reiserfs_warning(NULL, "reiserfs-16100",
+			 "STATDATA, index %d, type 0x%x, %h",
 			 vi->vi_index, vi->vi_type, vi->vi_ih);
 }
 
@@ -190,7 +191,8 @@ static int direct_unit_num(struct virtual_item *vi)
 
 static void direct_print_vi(struct virtual_item *vi)
 {
-	reiserfs_warning(NULL, "DIRECT, index %d, type 0x%x, %h",
+	reiserfs_warning(NULL, "reiserfs-16101",
+			 "DIRECT, index %d, type 0x%x, %h",
 			 vi->vi_index, vi->vi_type, vi->vi_ih);
 }
 
@@ -278,7 +280,7 @@ static void indirect_print_item(struct item_head *ih, char *item)
 	unp = (__le32 *) item;
 
 	if (ih_item_len(ih) % UNFM_P_SIZE)
-		reiserfs_warning(NULL, "indirect_print_item: invalid item len");
+		reiserfs_warning(NULL, "reiserfs-16102", "invalid item len");
 
 	printk("%d pointers\n[ ", (int)I_UNFM_NUM(ih));
 	for (j = 0; j < I_UNFM_NUM(ih); j++) {
@@ -334,7 +336,8 @@ static int indirect_unit_num(struct virtual_item *vi)
 
 static void indirect_print_vi(struct virtual_item *vi)
 {
-	reiserfs_warning(NULL, "INDIRECT, index %d, type 0x%x, %h",
+	reiserfs_warning(NULL, "reiserfs-16103",
+			 "INDIRECT, index %d, type 0x%x, %h",
 			 vi->vi_index, vi->vi_type, vi->vi_ih);
 }
 
@@ -359,7 +362,7 @@ static struct item_operations indirect_ops = {
 
 static int direntry_bytes_number(struct item_head *ih, int block_size)
 {
-	reiserfs_warning(NULL, "vs-16090: direntry_bytes_number: "
+	reiserfs_warning(NULL, "vs-16090",
 			 "bytes number is asked for direntry");
 	return 0;
 }
@@ -614,7 +617,8 @@ static void direntry_print_vi(struct virtual_item *vi)
 	int i;
 	struct direntry_uarea *dir_u = vi->vi_uarea;
 
-	reiserfs_warning(NULL, "DIRENTRY, index %d, type 0x%x, %h, flags 0x%x",
+	reiserfs_warning(NULL, "reiserfs-16104",
+			 "DIRENTRY, index %d, type 0x%x, %h, flags 0x%x",
 			 vi->vi_index, vi->vi_type, vi->vi_ih, dir_u->flags);
 	printk("%d entries: ", dir_u->entry_count);
 	for (i = 0; i < dir_u->entry_count; i++)
@@ -642,43 +646,43 @@ static struct item_operations direntry_ops = {
 //
 static int errcatch_bytes_number(struct item_head *ih, int block_size)
 {
-	reiserfs_warning(NULL,
-			 "green-16001: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16001",
+			 "Invalid item type observed, run fsck ASAP");
 	return 0;
 }
 
 static void errcatch_decrement_key(struct cpu_key *key)
 {
-	reiserfs_warning(NULL,
-			 "green-16002: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16002",
+			 "Invalid item type observed, run fsck ASAP");
 }
 
 static int errcatch_is_left_mergeable(struct reiserfs_key *key,
 				      unsigned long bsize)
 {
-	reiserfs_warning(NULL,
-			 "green-16003: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16003",
+			 "Invalid item type observed, run fsck ASAP");
 	return 0;
 }
 
 static void errcatch_print_item(struct item_head *ih, char *item)
 {
-	reiserfs_warning(NULL,
-			 "green-16004: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16004",
+			 "Invalid item type observed, run fsck ASAP");
 }
 
 static void errcatch_check_item(struct item_head *ih, char *item)
 {
-	reiserfs_warning(NULL,
-			 "green-16005: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16005",
+			 "Invalid item type observed, run fsck ASAP");
 }
 
 static int errcatch_create_vi(struct virtual_node *vn,
 			      struct virtual_item *vi,
 			      int is_affected, int insert_size)
 {
-	reiserfs_warning(NULL,
-			 "green-16006: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16006",
+			 "Invalid item type observed, run fsck ASAP");
 	return 0;		// We might return -1 here as well, but it won't help as create_virtual_node() from where
 	// this operation is called from is of return type void.
 }
@@ -686,36 +690,36 @@ static int errcatch_create_vi(struct virtual_node *vn,
 static int errcatch_check_left(struct virtual_item *vi, int free,
 			       int start_skip, int end_skip)
 {
-	reiserfs_warning(NULL,
-			 "green-16007: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16007",
+			 "Invalid item type observed, run fsck ASAP");
 	return -1;
 }
 
 static int errcatch_check_right(struct virtual_item *vi, int free)
 {
-	reiserfs_warning(NULL,
-			 "green-16008: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16008",
+			 "Invalid item type observed, run fsck ASAP");
 	return -1;
 }
 
 static int errcatch_part_size(struct virtual_item *vi, int first, int count)
 {
-	reiserfs_warning(NULL,
-			 "green-16009: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16009",
+			 "Invalid item type observed, run fsck ASAP");
 	return 0;
 }
 
 static int errcatch_unit_num(struct virtual_item *vi)
 {
-	reiserfs_warning(NULL,
-			 "green-16010: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16010",
+			 "Invalid item type observed, run fsck ASAP");
 	return 0;
 }
 
 static void errcatch_print_vi(struct virtual_item *vi)
 {
-	reiserfs_warning(NULL,
-			 "green-16011: Invalid item type observed, run fsck ASAP");
+	reiserfs_warning(NULL, "green-16011",
+			 "Invalid item type observed, run fsck ASAP");
 }
 
 static struct item_operations errcatch_ops = {
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 677bb926e7d6..88a031fafd07 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -300,8 +300,8 @@ int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb,
 		jb->journal_list = NULL;
 		jb->bitmaps = vmalloc(mem);
 		if (!jb->bitmaps) {
-			reiserfs_warning(p_s_sb,
-					 "clm-2000, unable to allocate bitmaps for journal lists");
+			reiserfs_warning(p_s_sb, "clm-2000", "unable to "
+					 "allocate bitmaps for journal lists");
 			failed = 1;
 			break;
 		}
@@ -644,8 +644,8 @@ static void reiserfs_end_buffer_io_sync(struct buffer_head *bh, int uptodate)
 	char b[BDEVNAME_SIZE];
 
 	if (buffer_journaled(bh)) {
-		reiserfs_warning(NULL,
-				 "clm-2084: pinned buffer %lu:%s sent to disk",
+		reiserfs_warning(NULL, "clm-2084",
+				 "pinned buffer %lu:%s sent to disk",
 				 bh->b_blocknr, bdevname(bh->b_bdev, b));
 	}
 	if (uptodate)
@@ -1122,7 +1122,8 @@ static int flush_commit_list(struct super_block *s,
 			sync_dirty_buffer(tbh);
 		if (unlikely(!buffer_uptodate(tbh))) {
 #ifdef CONFIG_REISERFS_CHECK
-			reiserfs_warning(s, "journal-601, buffer write failed");
+			reiserfs_warning(s, "journal-601",
+					 "buffer write failed");
 #endif
 			retval = -EIO;
 		}
@@ -1154,14 +1155,14 @@ static int flush_commit_list(struct super_block *s,
 	 * up propagating the write error out to the filesystem. */
 	if (unlikely(!buffer_uptodate(jl->j_commit_bh))) {
 #ifdef CONFIG_REISERFS_CHECK
-		reiserfs_warning(s, "journal-615: buffer write failed");
+		reiserfs_warning(s, "journal-615", "buffer write failed");
 #endif
 		retval = -EIO;
 	}
 	bforget(jl->j_commit_bh);
 	if (journal->j_last_commit_id != 0 &&
 	    (jl->j_trans_id - journal->j_last_commit_id) != 1) {
-		reiserfs_warning(s, "clm-2200: last commit %lu, current %lu",
+		reiserfs_warning(s, "clm-2200", "last commit %lu, current %lu",
 				 journal->j_last_commit_id, jl->j_trans_id);
 	}
 	journal->j_last_commit_id = jl->j_trans_id;
@@ -1250,7 +1251,7 @@ static void remove_all_from_journal_list(struct super_block *p_s_sb,
 	while (cn) {
 		if (cn->blocknr != 0) {
 			if (debug) {
-				reiserfs_warning(p_s_sb,
+				reiserfs_warning(p_s_sb, "reiserfs-2201",
 						 "block %u, bh is %d, state %ld",
 						 cn->blocknr, cn->bh ? 1 : 0,
 						 cn->state);
@@ -1288,8 +1289,8 @@ static int _update_journal_header_block(struct super_block *p_s_sb,
 			wait_on_buffer((journal->j_header_bh));
 			if (unlikely(!buffer_uptodate(journal->j_header_bh))) {
 #ifdef CONFIG_REISERFS_CHECK
-				reiserfs_warning(p_s_sb,
-						 "journal-699: buffer write failed");
+				reiserfs_warning(p_s_sb, "journal-699",
+						 "buffer write failed");
 #endif
 				return -EIO;
 			}
@@ -1319,8 +1320,8 @@ static int _update_journal_header_block(struct super_block *p_s_sb,
 			sync_dirty_buffer(journal->j_header_bh);
 		}
 		if (!buffer_uptodate(journal->j_header_bh)) {
-			reiserfs_warning(p_s_sb,
-					 "journal-837: IO error during journal replay");
+			reiserfs_warning(p_s_sb, "journal-837",
+					 "IO error during journal replay");
 			return -EIO;
 		}
 	}
@@ -1401,8 +1402,7 @@ static int flush_journal_list(struct super_block *s,
 	BUG_ON(j_len_saved <= 0);
 
 	if (atomic_read(&journal->j_wcount) != 0) {
-		reiserfs_warning(s,
-				 "clm-2048: flush_journal_list called with wcount %d",
+		reiserfs_warning(s, "clm-2048", "called with wcount %d",
 				 atomic_read(&journal->j_wcount));
 	}
 	BUG_ON(jl->j_trans_id == 0);
@@ -1510,8 +1510,8 @@ static int flush_journal_list(struct super_block *s,
 		 ** is not marked JDirty_wait
 		 */
 		if ((!was_jwait) && !buffer_locked(saved_bh)) {
-			reiserfs_warning(s,
-					 "journal-813: BAD! buffer %llu %cdirty %cjwait, "
+			reiserfs_warning(s, "journal-813",
+					 "BAD! buffer %llu %cdirty %cjwait, "
 					 "not in a newer tranasction",
 					 (unsigned long long)saved_bh->
 					 b_blocknr, was_dirty ? ' ' : '!',
@@ -1529,8 +1529,8 @@ static int flush_journal_list(struct super_block *s,
 				unlock_buffer(saved_bh);
 			count++;
 		} else {
-			reiserfs_warning(s,
-					 "clm-2082: Unable to flush buffer %llu in %s",
+			reiserfs_warning(s, "clm-2082",
+					 "Unable to flush buffer %llu in %s",
 					 (unsigned long long)saved_bh->
 					 b_blocknr, __func__);
 		}
@@ -1541,8 +1541,8 @@ static int flush_journal_list(struct super_block *s,
 			/* we incremented this to keep others from taking the buffer head away */
 			put_bh(saved_bh);
 			if (atomic_read(&(saved_bh->b_count)) < 0) {
-				reiserfs_warning(s,
-						 "journal-945: saved_bh->b_count < 0");
+				reiserfs_warning(s, "journal-945",
+						 "saved_bh->b_count < 0");
 			}
 		}
 	}
@@ -1561,8 +1561,8 @@ static int flush_journal_list(struct super_block *s,
 				}
 				if (unlikely(!buffer_uptodate(cn->bh))) {
 #ifdef CONFIG_REISERFS_CHECK
-					reiserfs_warning(s,
-							 "journal-949: buffer write failed\n");
+					reiserfs_warning(s, "journal-949",
+							 "buffer write failed");
 #endif
 					err = -EIO;
 				}
@@ -1623,7 +1623,7 @@ static int flush_journal_list(struct super_block *s,
 
 	if (journal->j_last_flush_id != 0 &&
 	    (jl->j_trans_id - journal->j_last_flush_id) != 1) {
-		reiserfs_warning(s, "clm-2201: last flush %lu, current %lu",
+		reiserfs_warning(s, "clm-2201", "last flush %lu, current %lu",
 				 journal->j_last_flush_id, jl->j_trans_id);
 	}
 	journal->j_last_flush_id = jl->j_trans_id;
@@ -2058,8 +2058,9 @@ static int journal_transaction_is_valid(struct super_block *p_s_sb,
 			return -1;
 		}
 		if (get_desc_trans_len(desc) > SB_JOURNAL(p_s_sb)->j_trans_max) {
-			reiserfs_warning(p_s_sb,
-					 "journal-2018: Bad transaction length %d encountered, ignoring transaction",
+			reiserfs_warning(p_s_sb, "journal-2018",
+					 "Bad transaction length %d "
+					 "encountered, ignoring transaction",
 					 get_desc_trans_len(desc));
 			return -1;
 		}
@@ -2195,8 +2196,8 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 		brelse(d_bh);
 		kfree(log_blocks);
 		kfree(real_blocks);
-		reiserfs_warning(p_s_sb,
-				 "journal-1169: kmalloc failed, unable to mount FS");
+		reiserfs_warning(p_s_sb, "journal-1169",
+				 "kmalloc failed, unable to mount FS");
 		return -1;
 	}
 	/* get all the buffer heads */
@@ -2218,15 +2219,18 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 						  j_realblock[i - trans_half]));
 		}
 		if (real_blocks[i]->b_blocknr > SB_BLOCK_COUNT(p_s_sb)) {
-			reiserfs_warning(p_s_sb,
-					 "journal-1207: REPLAY FAILURE fsck required! Block to replay is outside of filesystem");
+			reiserfs_warning(p_s_sb, "journal-1207",
+					 "REPLAY FAILURE fsck required! "
+					 "Block to replay is outside of "
+					 "filesystem");
 			goto abort_replay;
 		}
 		/* make sure we don't try to replay onto log or reserved area */
 		if (is_block_in_log_or_reserved_area
 		    (p_s_sb, real_blocks[i]->b_blocknr)) {
-			reiserfs_warning(p_s_sb,
-					 "journal-1204: REPLAY FAILURE fsck required! Trying to replay onto a log block");
+			reiserfs_warning(p_s_sb, "journal-1204",
+					 "REPLAY FAILURE fsck required! "
+					 "Trying to replay onto a log block");
 		      abort_replay:
 			brelse_array(log_blocks, i);
 			brelse_array(real_blocks, i);
@@ -2242,8 +2246,9 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 	for (i = 0; i < get_desc_trans_len(desc); i++) {
 		wait_on_buffer(log_blocks[i]);
 		if (!buffer_uptodate(log_blocks[i])) {
-			reiserfs_warning(p_s_sb,
-					 "journal-1212: REPLAY FAILURE fsck required! buffer write failed");
+			reiserfs_warning(p_s_sb, "journal-1212",
+					 "REPLAY FAILURE fsck required! "
+					 "buffer write failed");
 			brelse_array(log_blocks + i,
 				     get_desc_trans_len(desc) - i);
 			brelse_array(real_blocks, get_desc_trans_len(desc));
@@ -2266,8 +2271,9 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 	for (i = 0; i < get_desc_trans_len(desc); i++) {
 		wait_on_buffer(real_blocks[i]);
 		if (!buffer_uptodate(real_blocks[i])) {
-			reiserfs_warning(p_s_sb,
-					 "journal-1226: REPLAY FAILURE, fsck required! buffer write failed");
+			reiserfs_warning(p_s_sb, "journal-1226",
+					 "REPLAY FAILURE, fsck required! "
+					 "buffer write failed");
 			brelse_array(real_blocks + i,
 				     get_desc_trans_len(desc) - i);
 			brelse(c_bh);
@@ -2418,8 +2424,8 @@ static int journal_read(struct super_block *p_s_sb)
 	}
 
 	if (continue_replay && bdev_read_only(p_s_sb->s_bdev)) {
-		reiserfs_warning(p_s_sb,
-				 "clm-2076: device is readonly, unable to replay log");
+		reiserfs_warning(p_s_sb, "clm-2076",
+				 "device is readonly, unable to replay log");
 		return -1;
 	}
 
@@ -2580,9 +2586,8 @@ static int release_journal_dev(struct super_block *super,
 	}
 
 	if (result != 0) {
-		reiserfs_warning(super,
-				 "sh-457: release_journal_dev: Cannot release journal device: %i",
-				 result);
+		reiserfs_warning(super, "sh-457",
+				 "Cannot release journal device: %i", result);
 	}
 	return result;
 }
@@ -2612,7 +2617,7 @@ static int journal_init_dev(struct super_block *super,
 		if (IS_ERR(journal->j_dev_bd)) {
 			result = PTR_ERR(journal->j_dev_bd);
 			journal->j_dev_bd = NULL;
-			reiserfs_warning(super, "sh-458: journal_init_dev: "
+			reiserfs_warning(super, "sh-458",
 					 "cannot init journal device '%s': %i",
 					 __bdevname(jdev, b), result);
 			return result;
@@ -2676,16 +2681,16 @@ static int check_advise_trans_params(struct super_block *p_s_sb,
 		    journal->j_trans_max < JOURNAL_TRANS_MIN_DEFAULT / ratio ||
 		    SB_ONDISK_JOURNAL_SIZE(p_s_sb) / journal->j_trans_max <
 		    JOURNAL_MIN_RATIO) {
-		        reiserfs_warning(p_s_sb,
-				 "sh-462: bad transaction max size (%u). FSCK?",
-				 journal->j_trans_max);
+			reiserfs_warning(p_s_sb, "sh-462",
+					 "bad transaction max size (%u). "
+					 "FSCK?", journal->j_trans_max);
 			return 1;
 		}
 		if (journal->j_max_batch != (journal->j_trans_max) *
 		        JOURNAL_MAX_BATCH_DEFAULT/JOURNAL_TRANS_MAX_DEFAULT) {
-		        reiserfs_warning(p_s_sb,
-				"sh-463: bad transaction max batch (%u). FSCK?",
-				journal->j_max_batch);
+			reiserfs_warning(p_s_sb, "sh-463",
+					 "bad transaction max batch (%u). "
+					 "FSCK?", journal->j_max_batch);
 			return 1;
 		}
 	} else {
@@ -2693,9 +2698,11 @@ static int check_advise_trans_params(struct super_block *p_s_sb,
                    The file system was created by old version
 		   of mkreiserfs, so some fields contain zeros,
 		   and we need to advise proper values for them */
-	        if (p_s_sb->s_blocksize != REISERFS_STANDARD_BLKSIZE)
-	                reiserfs_panic(p_s_sb, "sh-464: bad blocksize (%u)",
-				       p_s_sb->s_blocksize);
+		if (p_s_sb->s_blocksize != REISERFS_STANDARD_BLKSIZE) {
+			reiserfs_warning(p_s_sb, "sh-464", "bad blocksize (%u)",
+					 p_s_sb->s_blocksize);
+			return 1;
+		}
 		journal->j_trans_max = JOURNAL_TRANS_MAX_DEFAULT;
 		journal->j_max_batch = JOURNAL_MAX_BATCH_DEFAULT;
 		journal->j_max_commit_age = JOURNAL_MAX_COMMIT_AGE;
@@ -2719,8 +2726,8 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 
 	journal = SB_JOURNAL(p_s_sb) = vmalloc(sizeof(struct reiserfs_journal));
 	if (!journal) {
-		reiserfs_warning(p_s_sb,
-				 "journal-1256: unable to get memory for journal structure");
+		reiserfs_warning(p_s_sb, "journal-1256",
+				 "unable to get memory for journal structure");
 		return 1;
 	}
 	memset(journal, 0, sizeof(struct reiserfs_journal));
@@ -2749,9 +2756,9 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	if (!SB_ONDISK_JOURNAL_DEVICE(p_s_sb) &&
 	    (SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb) +
 	     SB_ONDISK_JOURNAL_SIZE(p_s_sb) > p_s_sb->s_blocksize * 8)) {
-		reiserfs_warning(p_s_sb,
-				 "journal-1393: journal does not fit for area "
-				 "addressed by first of bitmap blocks. It starts at "
+		reiserfs_warning(p_s_sb, "journal-1393",
+				 "journal does not fit for area addressed "
+				 "by first of bitmap blocks. It starts at "
 				 "%u and its size is %u. Block size %ld",
 				 SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb),
 				 SB_ONDISK_JOURNAL_SIZE(p_s_sb),
@@ -2760,8 +2767,8 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	}
 
 	if (journal_init_dev(p_s_sb, journal, j_dev_name) != 0) {
-		reiserfs_warning(p_s_sb,
-				 "sh-462: unable to initialize jornal device");
+		reiserfs_warning(p_s_sb, "sh-462",
+				 "unable to initialize jornal device");
 		goto free_and_return;
 	}
 
@@ -2772,8 +2779,8 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 			     SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
 			     SB_ONDISK_JOURNAL_SIZE(p_s_sb));
 	if (!bhjh) {
-		reiserfs_warning(p_s_sb,
-				 "sh-459: unable to read journal header");
+		reiserfs_warning(p_s_sb, "sh-459",
+				 "unable to read journal header");
 		goto free_and_return;
 	}
 	jh = (struct reiserfs_journal_header *)(bhjh->b_data);
@@ -2782,10 +2789,10 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	if (is_reiserfs_jr(rs)
 	    && (le32_to_cpu(jh->jh_journal.jp_journal_magic) !=
 		sb_jp_journal_magic(rs))) {
-		reiserfs_warning(p_s_sb,
-				 "sh-460: journal header magic %x "
-				 "(device %s) does not match to magic found in super "
-				 "block %x", jh->jh_journal.jp_journal_magic,
+		reiserfs_warning(p_s_sb, "sh-460",
+				 "journal header magic %x (device %s) does "
+				 "not match to magic found in super block %x",
+				 jh->jh_journal.jp_journal_magic,
 				 bdevname(journal->j_dev_bd, b),
 				 sb_jp_journal_magic(rs));
 		brelse(bhjh);
@@ -2852,7 +2859,7 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	journal->j_must_wait = 0;
 
 	if (journal->j_cnode_free == 0) {
-        	reiserfs_warning(p_s_sb, "journal-2004: Journal cnode memory "
+		reiserfs_warning(p_s_sb, "journal-2004", "Journal cnode memory "
 		                 "allocation failed (%ld bytes). Journal is "
 		                 "too large for available memory. Usually "
 		                 "this is due to a journal that is too large.",
@@ -2864,12 +2871,13 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	jl = journal->j_current_jl;
 	jl->j_list_bitmap = get_list_bitmap(p_s_sb, jl);
 	if (!jl->j_list_bitmap) {
-		reiserfs_warning(p_s_sb,
-				 "journal-2005, get_list_bitmap failed for journal list 0");
+		reiserfs_warning(p_s_sb, "journal-2005",
+				 "get_list_bitmap failed for journal list 0");
 		goto free_and_return;
 	}
 	if (journal_read(p_s_sb) < 0) {
-		reiserfs_warning(p_s_sb, "Replay Failure, unable to mount");
+		reiserfs_warning(p_s_sb, "reiserfs-2006",
+				 "Replay Failure, unable to mount");
 		goto free_and_return;
 	}
 
@@ -3196,16 +3204,17 @@ int journal_begin(struct reiserfs_transaction_handle *th,
 			cur_th->t_refcount++;
 			memcpy(th, cur_th, sizeof(*th));
 			if (th->t_refcount <= 1)
-				reiserfs_warning(p_s_sb,
-						 "BAD: refcount <= 1, but journal_info != 0");
+				reiserfs_warning(p_s_sb, "reiserfs-2005",
+						 "BAD: refcount <= 1, but "
+						 "journal_info != 0");
 			return 0;
 		} else {
 			/* we've ended up with a handle from a different filesystem.
 			 ** save it and restore on journal_end.  This should never
 			 ** really happen...
 			 */
-			reiserfs_warning(p_s_sb,
-					 "clm-2100: nesting info a different FS");
+			reiserfs_warning(p_s_sb, "clm-2100",
+					 "nesting info a different FS");
 			th->t_handle_save = current->journal_info;
 			current->journal_info = th;
 		}
@@ -3266,7 +3275,8 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 	 ** could get to disk too early.  NOT GOOD.
 	 */
 	if (!prepared || buffer_dirty(bh)) {
-		reiserfs_warning(p_s_sb, "journal-1777: buffer %llu bad state "
+		reiserfs_warning(p_s_sb, "journal-1777",
+				 "buffer %llu bad state "
 				 "%cPREPARED %cLOCKED %cDIRTY %cJDIRTY_WAIT",
 				 (unsigned long long)bh->b_blocknr,
 				 prepared ? ' ' : '!',
@@ -3276,8 +3286,8 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 	}
 
 	if (atomic_read(&(journal->j_wcount)) <= 0) {
-		reiserfs_warning(p_s_sb,
-				 "journal-1409: journal_mark_dirty returning because j_wcount was %d",
+		reiserfs_warning(p_s_sb, "journal-1409",
+				 "returning because j_wcount was %d",
 				 atomic_read(&(journal->j_wcount)));
 		return 1;
 	}
@@ -3342,8 +3352,8 @@ int journal_end(struct reiserfs_transaction_handle *th,
 		struct super_block *p_s_sb, unsigned long nblocks)
 {
 	if (!current->journal_info && th->t_refcount > 1)
-		reiserfs_warning(p_s_sb, "REISER-NESTING: th NULL, refcount %d",
-				 th->t_refcount);
+		reiserfs_warning(p_s_sb, "REISER-NESTING",
+				 "th NULL, refcount %d", th->t_refcount);
 
 	if (!th->t_trans_id) {
 		WARN_ON(1);
@@ -3413,8 +3423,8 @@ static int remove_from_transaction(struct super_block *p_s_sb,
 		clear_buffer_journal_test(bh);
 		put_bh(bh);
 		if (atomic_read(&(bh->b_count)) < 0) {
-			reiserfs_warning(p_s_sb,
-					 "journal-1752: remove from trans, b_count < 0");
+			reiserfs_warning(p_s_sb, "journal-1752",
+					 "b_count < 0");
 		}
 		ret = 1;
 	}
@@ -3734,7 +3744,8 @@ int journal_mark_freed(struct reiserfs_transaction_handle *th,
 						if (atomic_read
 						    (&(cn->bh->b_count)) < 0) {
 							reiserfs_warning(p_s_sb,
-									 "journal-2138: cn->bh->b_count < 0");
+								 "journal-2138",
+								 "cn->bh->b_count < 0");
 						}
 					}
 					if (cn->jlist) {	/* since we are clearing the bh, we MUST dec nonzerolen */
@@ -4137,8 +4148,9 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 			clear_buffer_journaled(cn->bh);
 		} else {
 			/* JDirty cleared sometime during transaction.  don't log this one */
-			reiserfs_warning(p_s_sb,
-					 "journal-2048: do_journal_end: BAD, buffer in journal hash, but not JDirty!");
+			reiserfs_warning(p_s_sb, "journal-2048",
+					 "BAD, buffer in journal hash, "
+					 "but not JDirty!");
 			brelse(cn->bh);
 		}
 		next = cn->next;
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index 41bdd8c75887..381339b432e7 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -1288,12 +1288,16 @@ void leaf_paste_entries(struct buffer_info *bi,
 			prev = (i != 0) ? deh_location(&(deh[i - 1])) : 0;
 
 			if (prev && prev <= deh_location(&(deh[i])))
-				reiserfs_warning(NULL,
-						 "vs-10240: leaf_paste_entries: directory item (%h) corrupted (prev %a, cur(%d) %a)",
+				reiserfs_warning(NULL, "vs-10240",
+						 "directory item (%h) "
+						 "corrupted (prev %a, "
+						 "cur(%d) %a)",
 						 ih, deh + i - 1, i, deh + i);
 			if (next && next >= deh_location(&(deh[i])))
-				reiserfs_warning(NULL,
-						 "vs-10250: leaf_paste_entries: directory item (%h) corrupted (cur(%d) %a, next %a)",
+				reiserfs_warning(NULL, "vs-10250",
+						 "directory item (%h) "
+						 "corrupted (cur(%d) %a, "
+						 "next %a)",
 						 ih, i, deh + i, deh + i + 1);
 		}
 	}
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 738967f6c8ee..bb41c6e7c79b 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -120,8 +120,8 @@ int search_by_entry_key(struct super_block *sb, const struct cpu_key *key,
 	switch (retval) {
 	case ITEM_NOT_FOUND:
 		if (!PATH_LAST_POSITION(path)) {
-			reiserfs_warning(sb,
-					 "vs-7000: search_by_entry_key: search_by_key returned item position == 0");
+			reiserfs_warning(sb, "vs-7000", "search_by_key "
+					 "returned item position == 0");
 			pathrelse(path);
 			return IO_ERROR;
 		}
@@ -135,8 +135,7 @@ int search_by_entry_key(struct super_block *sb, const struct cpu_key *key,
 
 	default:
 		pathrelse(path);
-		reiserfs_warning(sb,
-				 "vs-7002: search_by_entry_key: no path to here");
+		reiserfs_warning(sb, "vs-7002", "no path to here");
 		return IO_ERROR;
 	}
 
@@ -300,8 +299,7 @@ static int reiserfs_find_entry(struct inode *dir, const char *name, int namelen,
 		    search_by_entry_key(dir->i_sb, &key_to_search,
 					path_to_entry, de);
 		if (retval == IO_ERROR) {
-			reiserfs_warning(dir->i_sb, "zam-7001: io error in %s",
-					 __func__);
+			reiserfs_warning(dir->i_sb, "zam-7001", "io error");
 			return IO_ERROR;
 		}
 
@@ -484,10 +482,9 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
 		}
 
 		if (retval != NAME_FOUND) {
-			reiserfs_warning(dir->i_sb,
-					 "zam-7002:%s: \"reiserfs_find_entry\" "
-					 "has returned unexpected value (%d)",
-					 __func__, retval);
+			reiserfs_warning(dir->i_sb, "zam-7002",
+					 "reiserfs_find_entry() returned "
+					 "unexpected value (%d)", retval);
 		}
 
 		return -EEXIST;
@@ -498,8 +495,9 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
 				MAX_GENERATION_NUMBER + 1);
 	if (gen_number > MAX_GENERATION_NUMBER) {
 		/* there is no free generation number */
-		reiserfs_warning(dir->i_sb,
-				 "reiserfs_add_entry: Congratulations! we have got hash function screwed up");
+		reiserfs_warning(dir->i_sb, "reiserfs-7010",
+				 "Congratulations! we have got hash function "
+				 "screwed up");
 		if (buffer != small_buf)
 			kfree(buffer);
 		pathrelse(&path);
@@ -515,10 +513,9 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
 	if (gen_number != 0) {	/* we need to re-search for the insertion point */
 		if (search_by_entry_key(dir->i_sb, &entry_key, &path, &de) !=
 		    NAME_NOT_FOUND) {
-			reiserfs_warning(dir->i_sb,
-					 "vs-7032: reiserfs_add_entry: "
-					 "entry with this key (%K) already exists",
-					 &entry_key);
+			reiserfs_warning(dir->i_sb, "vs-7032",
+					 "entry with this key (%K) already "
+					 "exists", &entry_key);
 
 			if (buffer != small_buf)
 				kfree(buffer);
@@ -903,8 +900,9 @@ static int reiserfs_rmdir(struct inode *dir, struct dentry *dentry)
 		goto end_rmdir;
 
 	if (inode->i_nlink != 2 && inode->i_nlink != 1)
-		reiserfs_warning(inode->i_sb, "%s: empty directory has nlink "
-				 "!= 2 (%d)", __func__, inode->i_nlink);
+		reiserfs_warning(inode->i_sb, "reiserfs-7040",
+				 "empty directory has nlink != 2 (%d)",
+				 inode->i_nlink);
 
 	clear_nlink(inode);
 	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
@@ -980,10 +978,9 @@ static int reiserfs_unlink(struct inode *dir, struct dentry *dentry)
 	}
 
 	if (!inode->i_nlink) {
-		reiserfs_warning(inode->i_sb, "%s: deleting nonexistent file "
-				 "(%s:%lu), %d", __func__,
-				 reiserfs_bdevname(inode->i_sb), inode->i_ino,
-				 inode->i_nlink);
+		reiserfs_warning(inode->i_sb, "reiserfs-7042",
+				 "deleting nonexistent file (%lu), %d",
+				 inode->i_ino, inode->i_nlink);
 		inode->i_nlink = 1;
 	}
 
@@ -1499,8 +1496,8 @@ static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	if (reiserfs_cut_from_item
 	    (&th, &old_entry_path, &(old_de.de_entry_key), old_dir, NULL,
 	     0) < 0)
-		reiserfs_warning(old_dir->i_sb,
-				 "vs-7060: reiserfs_rename: couldn't not cut old name. Fsck later?");
+		reiserfs_warning(old_dir->i_sb, "vs-7060",
+				 "couldn't not cut old name. Fsck later?");
 
 	old_dir->i_size -= DEH_SIZE + old_de.de_entrylen;
 
diff --git a/fs/reiserfs/objectid.c b/fs/reiserfs/objectid.c
index ea0cf8c28a99..a3a5f43ff443 100644
--- a/fs/reiserfs/objectid.c
+++ b/fs/reiserfs/objectid.c
@@ -61,7 +61,7 @@ __u32 reiserfs_get_unused_objectid(struct reiserfs_transaction_handle *th)
 	/* comment needed -Hans */
 	unused_objectid = le32_to_cpu(map[1]);
 	if (unused_objectid == U32_MAX) {
-		reiserfs_warning(s, "%s: no more object ids", __func__);
+		reiserfs_warning(s, "reiserfs-15100", "no more object ids");
 		reiserfs_restore_prepared_buffer(s, SB_BUFFER_WITH_SB(s));
 		return 0;
 	}
@@ -160,8 +160,7 @@ void reiserfs_release_objectid(struct reiserfs_transaction_handle *th,
 		i += 2;
 	}
 
-	reiserfs_warning(s,
-			 "vs-15011: reiserfs_release_objectid: tried to free free object id (%lu)",
+	reiserfs_warning(s, "vs-15011", "tried to free free object id (%lu)",
 			 (long unsigned)objectid_to_release);
 }
 
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index 535a3c7fc68e..50ed4bd3ef63 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -264,14 +264,17 @@ static void prepare_error_buf(const char *fmt, va_list args)
     va_end( args );\
 }
 
-void reiserfs_warning(struct super_block *sb, const char *fmt, ...)
+void __reiserfs_warning(struct super_block *sb, const char *id,
+			 const char *function, const char *fmt, ...)
 {
 	do_reiserfs_warning(fmt);
 	if (sb)
-		printk(KERN_WARNING "REISERFS warning (device %s): %s\n",
-		       sb->s_id, error_buf);
+		printk(KERN_WARNING "REISERFS warning (device %s): %s%s%s: "
+		       "%s\n", sb->s_id, id ? id : "", id ? " " : "",
+		       function, error_buf);
 	else
-		printk(KERN_WARNING "REISERFS warning: %s\n", error_buf);
+		printk(KERN_WARNING "REISERFS warning: %s%s%s: %s\n",
+		       id ? id : "", id ? " " : "", function, error_buf);
 }
 
 /* No newline.. reiserfs_info calls can be followed by printk's */
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index 370988efc8ad..d4d7f1433ed0 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -503,7 +503,7 @@ int reiserfs_proc_info_init(struct super_block *sb)
 		add_file(sb, "journal", show_journal);
 		return 0;
 	}
-	reiserfs_warning(sb, "reiserfs: cannot create /proc/%s/%s",
+	reiserfs_warning(sb, "cannot create /proc/%s/%s",
 			 proc_info_root_name, b);
 	return 1;
 }
@@ -559,8 +559,7 @@ int reiserfs_proc_info_global_init(void)
 		if (proc_info_root) {
 			proc_info_root->owner = THIS_MODULE;
 		} else {
-			reiserfs_warning(NULL,
-					 "reiserfs: cannot create /proc/%s",
+			reiserfs_warning(NULL, "cannot create /proc/%s",
 					 proc_info_root_name);
 			return 1;
 		}
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index abbc64dcc8d4..f328d27a19d5 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -444,23 +444,24 @@ static int is_leaf(char *buf, int blocksize, struct buffer_head *bh)
 
 	blkh = (struct block_head *)buf;
 	if (blkh_level(blkh) != DISK_LEAF_NODE_LEVEL) {
-		reiserfs_warning(NULL,
-				 "is_leaf: this should be caught earlier");
+		reiserfs_warning(NULL, "reiserfs-5080",
+				 "this should be caught earlier");
 		return 0;
 	}
 
 	nr = blkh_nr_item(blkh);
 	if (nr < 1 || nr > ((blocksize - BLKH_SIZE) / (IH_SIZE + MIN_ITEM_LEN))) {
 		/* item number is too big or too small */
-		reiserfs_warning(NULL, "is_leaf: nr_item seems wrong: %z", bh);
+		reiserfs_warning(NULL, "reiserfs-5081",
+				 "nr_item seems wrong: %z", bh);
 		return 0;
 	}
 	ih = (struct item_head *)(buf + BLKH_SIZE) + nr - 1;
 	used_space = BLKH_SIZE + IH_SIZE * nr + (blocksize - ih_location(ih));
 	if (used_space != blocksize - blkh_free_space(blkh)) {
 		/* free space does not match to calculated amount of use space */
-		reiserfs_warning(NULL, "is_leaf: free space seems wrong: %z",
-				 bh);
+		reiserfs_warning(NULL, "reiserfs-5082",
+				 "free space seems wrong: %z", bh);
 		return 0;
 	}
 	// FIXME: it is_leaf will hit performance too much - we may have
@@ -471,29 +472,29 @@ static int is_leaf(char *buf, int blocksize, struct buffer_head *bh)
 	prev_location = blocksize;
 	for (i = 0; i < nr; i++, ih++) {
 		if (le_ih_k_type(ih) == TYPE_ANY) {
-			reiserfs_warning(NULL,
-					 "is_leaf: wrong item type for item %h",
+			reiserfs_warning(NULL, "reiserfs-5083",
+					 "wrong item type for item %h",
 					 ih);
 			return 0;
 		}
 		if (ih_location(ih) >= blocksize
 		    || ih_location(ih) < IH_SIZE * nr) {
-			reiserfs_warning(NULL,
-					 "is_leaf: item location seems wrong: %h",
+			reiserfs_warning(NULL, "reiserfs-5084",
+					 "item location seems wrong: %h",
 					 ih);
 			return 0;
 		}
 		if (ih_item_len(ih) < 1
 		    || ih_item_len(ih) > MAX_ITEM_LEN(blocksize)) {
-			reiserfs_warning(NULL,
-					 "is_leaf: item length seems wrong: %h",
+			reiserfs_warning(NULL, "reiserfs-5085",
+					 "item length seems wrong: %h",
 					 ih);
 			return 0;
 		}
 		if (prev_location - ih_location(ih) != ih_item_len(ih)) {
-			reiserfs_warning(NULL,
-					 "is_leaf: item location seems wrong (second one): %h",
-					 ih);
+			reiserfs_warning(NULL, "reiserfs-5086",
+					 "item location seems wrong "
+					 "(second one): %h", ih);
 			return 0;
 		}
 		prev_location = ih_location(ih);
@@ -514,24 +515,23 @@ static int is_internal(char *buf, int blocksize, struct buffer_head *bh)
 	nr = blkh_level(blkh);
 	if (nr <= DISK_LEAF_NODE_LEVEL || nr > MAX_HEIGHT) {
 		/* this level is not possible for internal nodes */
-		reiserfs_warning(NULL,
-				 "is_internal: this should be caught earlier");
+		reiserfs_warning(NULL, "reiserfs-5087",
+				 "this should be caught earlier");
 		return 0;
 	}
 
 	nr = blkh_nr_item(blkh);
 	if (nr > (blocksize - BLKH_SIZE - DC_SIZE) / (KEY_SIZE + DC_SIZE)) {
 		/* for internal which is not root we might check min number of keys */
-		reiserfs_warning(NULL,
-				 "is_internal: number of key seems wrong: %z",
-				 bh);
+		reiserfs_warning(NULL, "reiserfs-5088",
+				 "number of key seems wrong: %z", bh);
 		return 0;
 	}
 
 	used_space = BLKH_SIZE + KEY_SIZE * nr + DC_SIZE * (nr + 1);
 	if (used_space != blocksize - blkh_free_space(blkh)) {
-		reiserfs_warning(NULL,
-				 "is_internal: free space seems wrong: %z", bh);
+		reiserfs_warning(NULL, "reiserfs-5089",
+				 "free space seems wrong: %z", bh);
 		return 0;
 	}
 	// one may imagine much more checks
@@ -543,8 +543,8 @@ static int is_internal(char *buf, int blocksize, struct buffer_head *bh)
 static int is_tree_node(struct buffer_head *bh, int level)
 {
 	if (B_LEVEL(bh) != level) {
-		reiserfs_warning(NULL,
-				 "is_tree_node: node level %d does not match to the expected one %d",
+		reiserfs_warning(NULL, "reiserfs-5090", "node level %d does "
+				 "not match to the expected one %d",
 				 B_LEVEL(bh), level);
 		return 0;
 	}
@@ -645,9 +645,9 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 
 #ifdef CONFIG_REISERFS_CHECK
 		if (!(++n_repeat_counter % 50000))
-			reiserfs_warning(p_s_sb, "PAP-5100: search_by_key: %s:"
-					 "there were %d iterations of while loop "
-					 "looking for key %K",
+			reiserfs_warning(p_s_sb, "PAP-5100",
+					 "%s: there were %d iterations of "
+					 "while loop looking for key %K",
 					 current->comm, n_repeat_counter,
 					 p_s_key);
 #endif
@@ -721,9 +721,9 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 		// make sure, that the node contents look like a node of
 		// certain level
 		if (!is_tree_node(p_s_bh, expected_level)) {
-			reiserfs_warning(p_s_sb, "vs-5150: search_by_key: "
-					 "invalid format found in block %ld. Fsck?",
-					 p_s_bh->b_blocknr);
+			reiserfs_warning(p_s_sb, "vs-5150",
+					 "invalid format found in block %ld. "
+					 "Fsck?", p_s_bh->b_blocknr);
 			pathrelse(p_s_search_path);
 			return IO_ERROR;
 		}
@@ -1227,8 +1227,7 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 		if (n_ret_value == IO_ERROR)
 			break;
 		if (n_ret_value == FILE_NOT_FOUND) {
-			reiserfs_warning(p_s_sb,
-					 "vs-5340: reiserfs_delete_item: "
+			reiserfs_warning(p_s_sb, "vs-5340",
 					 "no items of the file %K found",
 					 p_s_item_key);
 			break;
@@ -1338,10 +1337,9 @@ void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
 	while (1) {
 		retval = search_item(th->t_super, &cpu_key, &path);
 		if (retval == IO_ERROR) {
-			reiserfs_warning(th->t_super,
-					 "vs-5350: reiserfs_delete_solid_item: "
-					 "i/o failure occurred trying to delete %K",
-					 &cpu_key);
+			reiserfs_warning(th->t_super, "vs-5350",
+					 "i/o failure occurred trying "
+					 "to delete %K", &cpu_key);
 			break;
 		}
 		if (retval != ITEM_FOUND) {
@@ -1355,9 +1353,8 @@ void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
 			     GET_GENERATION_NUMBER(le_key_k_offset
 						   (le_key_version(key),
 						    key)) == 1))
-				reiserfs_warning(th->t_super,
-						 "vs-5355: reiserfs_delete_solid_item: %k not found",
-						 key);
+				reiserfs_warning(th->t_super, "vs-5355",
+						 "%k not found", key);
 			break;
 		}
 		if (!tb_init) {
@@ -1389,8 +1386,7 @@ void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
 			break;
 		}
 		// IO_ERROR, NO_DISK_SPACE, etc
-		reiserfs_warning(th->t_super,
-				 "vs-5360: reiserfs_delete_solid_item: "
+		reiserfs_warning(th->t_super, "vs-5360",
 				 "could not delete %K due to fix_nodes failure",
 				 &cpu_key);
 		unfix_nodes(&tb);
@@ -1533,8 +1529,9 @@ static void indirect_to_direct_roll_back(struct reiserfs_transaction_handle *th,
 		set_cpu_key_k_offset(&tail_key,
 				     cpu_key_k_offset(&tail_key) - removed);
 	}
-	reiserfs_warning(inode->i_sb,
-			 "indirect_to_direct_roll_back: indirect_to_direct conversion has been rolled back due to lack of disk space");
+	reiserfs_warning(inode->i_sb, "reiserfs-5091", "indirect_to_direct "
+			 "conversion has been rolled back due to "
+			 "lack of disk space");
 	//mark_file_without_tail (inode);
 	mark_inode_dirty(inode);
 }
@@ -1639,8 +1636,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		if (n_ret_value == POSITION_FOUND)
 			continue;
 
-		reiserfs_warning(p_s_sb,
-				 "PAP-5610: reiserfs_cut_from_item: item %K not found",
+		reiserfs_warning(p_s_sb, "PAP-5610", "item %K not found",
 				 p_s_item_key);
 		unfix_nodes(&s_cut_balance);
 		return (n_ret_value == IO_ERROR) ? -EIO : -ENOENT;
@@ -1654,7 +1650,8 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 			indirect_to_direct_roll_back(th, p_s_inode, p_s_path);
 		}
 		if (n_ret_value == NO_DISK_SPACE)
-			reiserfs_warning(p_s_sb, "NO_DISK_SPACE");
+			reiserfs_warning(p_s_sb, "reiserfs-5092",
+					 "NO_DISK_SPACE");
 		unfix_nodes(&s_cut_balance);
 		return -EIO;
 	}
@@ -1743,8 +1740,7 @@ static void truncate_directory(struct reiserfs_transaction_handle *th,
 {
 	BUG_ON(!th->t_trans_id);
 	if (inode->i_nlink)
-		reiserfs_warning(inode->i_sb,
-				 "vs-5655: truncate_directory: link count != 0");
+		reiserfs_warning(inode->i_sb, "vs-5655", "link count != 0");
 
 	set_le_key_k_offset(KEY_FORMAT_3_5, INODE_PKEY(inode), DOT_OFFSET);
 	set_le_key_k_type(KEY_FORMAT_3_5, INODE_PKEY(inode), TYPE_DIRENTRY);
@@ -1797,16 +1793,14 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
 	    search_for_position_by_key(p_s_inode->i_sb, &s_item_key,
 				       &s_search_path);
 	if (retval == IO_ERROR) {
-		reiserfs_warning(p_s_inode->i_sb,
-				 "vs-5657: reiserfs_do_truncate: "
+		reiserfs_warning(p_s_inode->i_sb, "vs-5657",
 				 "i/o failure occurred trying to truncate %K",
 				 &s_item_key);
 		err = -EIO;
 		goto out;
 	}
 	if (retval == POSITION_FOUND || retval == FILE_NOT_FOUND) {
-		reiserfs_warning(p_s_inode->i_sb,
-				 "PAP-5660: reiserfs_do_truncate: "
+		reiserfs_warning(p_s_inode->i_sb, "PAP-5660",
 				 "wrong result %d of search for %K", retval,
 				 &s_item_key);
 
@@ -1850,8 +1844,8 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
 		    reiserfs_cut_from_item(th, &s_search_path, &s_item_key,
 					   p_s_inode, page, n_new_file_size);
 		if (n_deleted < 0) {
-			reiserfs_warning(p_s_inode->i_sb,
-					 "vs-5665: reiserfs_do_truncate: reiserfs_cut_from_item failed");
+			reiserfs_warning(p_s_inode->i_sb, "vs-5665",
+					 "reiserfs_cut_from_item failed");
 			reiserfs_check_path(&s_search_path);
 			return 0;
 		}
@@ -2000,8 +1994,8 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
 			goto error_out;
 		}
 		if (retval == POSITION_FOUND) {
-			reiserfs_warning(inode->i_sb,
-					 "PAP-5710: reiserfs_paste_into_item: entry or pasted byte (%K) exists",
+			reiserfs_warning(inode->i_sb, "PAP-5710",
+					 "entry or pasted byte (%K) exists",
 					 p_s_key);
 			retval = -EEXIST;
 			goto error_out;
@@ -2087,8 +2081,7 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
 			goto error_out;
 		}
 		if (retval == ITEM_FOUND) {
-			reiserfs_warning(th->t_super,
-					 "PAP-5760: reiserfs_insert_item: "
+			reiserfs_warning(th->t_super, "PAP-5760",
 					 "key %K already exists in the tree",
 					 key);
 			retval = -EEXIST;
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 0428004dc638..bfc276c8e978 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -183,9 +183,9 @@ static int finish_unfinished(struct super_block *s)
 		if (REISERFS_SB(s)->s_qf_names[i]) {
 			int ret = reiserfs_quota_on_mount(s, i);
 			if (ret < 0)
-				reiserfs_warning(s,
-						 "reiserfs: cannot turn on journaled quota: error %d",
-						 ret);
+				reiserfs_warning(s, "reiserfs-2500",
+						 "cannot turn on journaled "
+						 "quota: error %d", ret);
 		}
 	}
 #endif
@@ -195,8 +195,8 @@ static int finish_unfinished(struct super_block *s)
 	while (!retval) {
 		retval = search_item(s, &max_cpu_key, &path);
 		if (retval != ITEM_NOT_FOUND) {
-			reiserfs_warning(s,
-					 "vs-2140: finish_unfinished: search_by_key returned %d",
+			reiserfs_warning(s, "vs-2140",
+					 "search_by_key returned %d",
 					 retval);
 			break;
 		}
@@ -204,8 +204,8 @@ static int finish_unfinished(struct super_block *s)
 		bh = get_last_bh(&path);
 		item_pos = get_item_pos(&path);
 		if (item_pos != B_NR_ITEMS(bh)) {
-			reiserfs_warning(s,
-					 "vs-2060: finish_unfinished: wrong position found");
+			reiserfs_warning(s, "vs-2060",
+					 "wrong position found");
 			break;
 		}
 		item_pos--;
@@ -235,8 +235,7 @@ static int finish_unfinished(struct super_block *s)
 		if (!inode) {
 			/* the unlink almost completed, it just did not manage to remove
 			   "save" link and release objectid */
-			reiserfs_warning(s,
-					 "vs-2180: finish_unfinished: iget failed for %K",
+			reiserfs_warning(s, "vs-2180", "iget failed for %K",
 					 &obj_key);
 			retval = remove_save_link_only(s, &save_link_key, 1);
 			continue;
@@ -244,8 +243,8 @@ static int finish_unfinished(struct super_block *s)
 
 		if (!truncate && inode->i_nlink) {
 			/* file is not unlinked */
-			reiserfs_warning(s,
-					 "vs-2185: finish_unfinished: file %K is not unlinked",
+			reiserfs_warning(s, "vs-2185",
+					 "file %K is not unlinked",
 					 &obj_key);
 			retval = remove_save_link_only(s, &save_link_key, 0);
 			continue;
@@ -257,8 +256,9 @@ static int finish_unfinished(struct super_block *s)
 			   The only imaginable way is to execute unfinished truncate request
 			   then boot into old kernel, remove the file and create dir with
 			   the same key. */
-			reiserfs_warning(s,
-					 "green-2101: impossible truncate on a directory %k. Please report",
+			reiserfs_warning(s, "green-2101",
+					 "impossible truncate on a "
+					 "directory %k. Please report",
 					 INODE_PKEY(inode));
 			retval = remove_save_link_only(s, &save_link_key, 0);
 			truncate = 0;
@@ -288,9 +288,10 @@ static int finish_unfinished(struct super_block *s)
 				/* removal gets completed in iput */
 				retval = 0;
 			} else {
-				reiserfs_warning(s, "Dead loop in "
-						"finish_unfinished detected, "
-						"just remove save link\n");
+				reiserfs_warning(s, "super-2189", "Dead loop "
+						 "in finish_unfinished "
+						 "detected, just remove "
+						 "save link\n");
 				retval = remove_save_link_only(s,
 							&save_link_key, 0);
 			}
@@ -360,8 +361,9 @@ void add_save_link(struct reiserfs_transaction_handle *th,
 	} else {
 		/* truncate */
 		if (S_ISDIR(inode->i_mode))
-			reiserfs_warning(inode->i_sb,
-					 "green-2102: Adding a truncate savelink for a directory %k! Please report",
+			reiserfs_warning(inode->i_sb, "green-2102",
+					 "Adding a truncate savelink for "
+					 "a directory %k! Please report",
 					 INODE_PKEY(inode));
 		set_cpu_key_k_offset(&key, 1);
 		set_cpu_key_k_type(&key, TYPE_INDIRECT);
@@ -376,7 +378,7 @@ void add_save_link(struct reiserfs_transaction_handle *th,
 	retval = search_item(inode->i_sb, &key, &path);
 	if (retval != ITEM_NOT_FOUND) {
 		if (retval != -ENOSPC)
-			reiserfs_warning(inode->i_sb, "vs-2100: add_save_link:"
+			reiserfs_warning(inode->i_sb, "vs-2100",
 					 "search_by_key (%K) returned %d", &key,
 					 retval);
 		pathrelse(&path);
@@ -391,9 +393,8 @@ void add_save_link(struct reiserfs_transaction_handle *th,
 	    reiserfs_insert_item(th, &path, &key, &ih, NULL, (char *)&link);
 	if (retval) {
 		if (retval != -ENOSPC)
-			reiserfs_warning(inode->i_sb,
-					 "vs-2120: add_save_link: insert_item returned %d",
-					 retval);
+			reiserfs_warning(inode->i_sb, "vs-2120",
+					 "insert_item returned %d", retval);
 	} else {
 		if (truncate)
 			REISERFS_I(inode)->i_flags |=
@@ -492,8 +493,7 @@ static void reiserfs_put_super(struct super_block *s)
 	print_statistics(s);
 
 	if (REISERFS_SB(s)->reserved_blocks != 0) {
-		reiserfs_warning(s,
-				 "green-2005: reiserfs_put_super: reserved blocks left %d",
+		reiserfs_warning(s, "green-2005", "reserved blocks left %d",
 				 REISERFS_SB(s)->reserved_blocks);
 	}
 
@@ -559,8 +559,8 @@ static void reiserfs_dirty_inode(struct inode *inode)
 
 	int err = 0;
 	if (inode->i_sb->s_flags & MS_RDONLY) {
-		reiserfs_warning(inode->i_sb,
-				 "clm-6006: writing inode %lu on readonly FS",
+		reiserfs_warning(inode->i_sb, "clm-6006",
+				 "writing inode %lu on readonly FS",
 				 inode->i_ino);
 		return;
 	}
@@ -794,13 +794,15 @@ static int reiserfs_getopt(struct super_block *s, char **cur, opt_desc_t * opts,
 			if (bit_flags) {
 				if (opt->clrmask ==
 				    (1 << REISERFS_UNSUPPORTED_OPT))
-					reiserfs_warning(s, "%s not supported.",
+					reiserfs_warning(s, "super-6500",
+							 "%s not supported.\n",
 							 p);
 				else
 					*bit_flags &= ~opt->clrmask;
 				if (opt->setmask ==
 				    (1 << REISERFS_UNSUPPORTED_OPT))
-					reiserfs_warning(s, "%s not supported.",
+					reiserfs_warning(s, "super-6501",
+							 "%s not supported.\n",
 							 p);
 				else
 					*bit_flags |= opt->setmask;
@@ -809,7 +811,8 @@ static int reiserfs_getopt(struct super_block *s, char **cur, opt_desc_t * opts,
 		}
 	}
 	if (!opt->option_name) {
-		reiserfs_warning(s, "unknown mount option \"%s\"", p);
+		reiserfs_warning(s, "super-6502",
+				 "unknown mount option \"%s\"", p);
 		return -1;
 	}
 
@@ -817,8 +820,9 @@ static int reiserfs_getopt(struct super_block *s, char **cur, opt_desc_t * opts,
 	switch (*p) {
 	case '=':
 		if (!opt->arg_required) {
-			reiserfs_warning(s,
-					 "the option \"%s\" does not require an argument",
+			reiserfs_warning(s, "super-6503",
+					 "the option \"%s\" does not "
+					 "require an argument\n",
 					 opt->option_name);
 			return -1;
 		}
@@ -826,14 +830,15 @@ static int reiserfs_getopt(struct super_block *s, char **cur, opt_desc_t * opts,
 
 	case 0:
 		if (opt->arg_required) {
-			reiserfs_warning(s,
-					 "the option \"%s\" requires an argument",
-					 opt->option_name);
+			reiserfs_warning(s, "super-6504",
+					 "the option \"%s\" requires an "
+					 "argument\n", opt->option_name);
 			return -1;
 		}
 		break;
 	default:
-		reiserfs_warning(s, "head of option \"%s\" is only correct",
+		reiserfs_warning(s, "super-6505",
+				 "head of option \"%s\" is only correct\n",
 				 opt->option_name);
 		return -1;
 	}
@@ -845,7 +850,8 @@ static int reiserfs_getopt(struct super_block *s, char **cur, opt_desc_t * opts,
 	    && !(opt->arg_required & (1 << REISERFS_OPT_ALLOWEMPTY))
 	    && !strlen(p)) {
 		/* this catches "option=," if not allowed */
-		reiserfs_warning(s, "empty argument for \"%s\"",
+		reiserfs_warning(s, "super-6506",
+				 "empty argument for \"%s\"\n",
 				 opt->option_name);
 		return -1;
 	}
@@ -867,7 +873,8 @@ static int reiserfs_getopt(struct super_block *s, char **cur, opt_desc_t * opts,
 		}
 	}
 
-	reiserfs_warning(s, "bad value \"%s\" for option \"%s\"", p,
+	reiserfs_warning(s, "super-6506",
+			 "bad value \"%s\" for option \"%s\"\n", p,
 			 opt->option_name);
 	return -1;
 }
@@ -957,9 +964,9 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
 				*blocks = simple_strtoul(arg, &p, 0);
 				if (*p != '\0') {
 					/* NNN does not look like a number */
-					reiserfs_warning(s,
-							 "reiserfs_parse_options: bad value %s",
-							 arg);
+					reiserfs_warning(s, "super-6507",
+							 "bad value %s for "
+							 "-oresize\n", arg);
 					return 0;
 				}
 			}
@@ -970,8 +977,8 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
 			unsigned long val = simple_strtoul(arg, &p, 0);
 			/* commit=NNN (time in seconds) */
 			if (*p != '\0' || val >= (unsigned int)-1) {
-				reiserfs_warning(s,
-						 "reiserfs_parse_options: bad value %s",
+				reiserfs_warning(s, "super-6508",
+						 "bad value %s for -ocommit\n",
 						 arg);
 				return 0;
 			}
@@ -979,16 +986,18 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
 		}
 
 		if (c == 'w') {
-			reiserfs_warning(s, "reiserfs: nolargeio option is no longer supported");
+			reiserfs_warning(s, "super-6509", "nolargeio option "
+					 "is no longer supported");
 			return 0;
 		}
 
 		if (c == 'j') {
 			if (arg && *arg && jdev_name) {
 				if (*jdev_name) {	//Hm, already assigned?
-					reiserfs_warning(s,
-							 "reiserfs_parse_options: journal device was already  specified to be %s",
-							 *jdev_name);
+					reiserfs_warning(s, "super-6510",
+							 "journal device was "
+							 "already specified to "
+							 "be %s", *jdev_name);
 					return 0;
 				}
 				*jdev_name = arg;
@@ -1000,29 +1009,35 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
 
 			if (sb_any_quota_loaded(s) &&
 			    (!*arg != !REISERFS_SB(s)->s_qf_names[qtype])) {
-				reiserfs_warning(s,
-						 "reiserfs_parse_options: cannot change journaled quota options when quota turned on.");
+				reiserfs_warning(s, "super-6511",
+						 "cannot change journaled "
+						 "quota options when quota "
+						 "turned on.");
 				return 0;
 			}
 			if (*arg) {	/* Some filename specified? */
 				if (REISERFS_SB(s)->s_qf_names[qtype]
 				    && strcmp(REISERFS_SB(s)->s_qf_names[qtype],
 					      arg)) {
-					reiserfs_warning(s,
-							 "reiserfs_parse_options: %s quota file already specified.",
+					reiserfs_warning(s, "super-6512",
+							 "%s quota file "
+							 "already specified.",
 							 QTYPE2NAME(qtype));
 					return 0;
 				}
 				if (strchr(arg, '/')) {
-					reiserfs_warning(s,
-							 "reiserfs_parse_options: quotafile must be on filesystem root.");
+					reiserfs_warning(s, "super-6513",
+							 "quotafile must be "
+							 "on filesystem root.");
 					return 0;
 				}
 				qf_names[qtype] =
 				    kmalloc(strlen(arg) + 1, GFP_KERNEL);
 				if (!qf_names[qtype]) {
-					reiserfs_warning(s,
-							 "reiserfs_parse_options: not enough memory for storing quotafile name.");
+					reiserfs_warning(s, "reiserfs-2502",
+							 "not enough memory "
+							 "for storing "
+							 "quotafile name.");
 					return 0;
 				}
 				strcpy(qf_names[qtype], arg);
@@ -1040,21 +1055,24 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
 			else if (!strcmp(arg, "vfsv0"))
 				*qfmt = QFMT_VFS_V0;
 			else {
-				reiserfs_warning(s,
-						 "reiserfs_parse_options: unknown quota format specified.");
+				reiserfs_warning(s, "super-6514",
+						 "unknown quota format "
+						 "specified.");
 				return 0;
 			}
 			if (sb_any_quota_loaded(s) &&
 			    *qfmt != REISERFS_SB(s)->s_jquota_fmt) {
-				reiserfs_warning(s,
-						 "reiserfs_parse_options: cannot change journaled quota options when quota turned on.");
+				reiserfs_warning(s, "super-6515",
+						 "cannot change journaled "
+						 "quota options when quota "
+						 "turned on.");
 				return 0;
 			}
 		}
 #else
 		if (c == 'u' || c == 'g' || c == 'f') {
-			reiserfs_warning(s,
-					 "reiserfs_parse_options: journaled quota options not supported.");
+			reiserfs_warning(s, "reiserfs-2503", "journaled "
+					 "quota options not supported.");
 			return 0;
 		}
 #endif
@@ -1063,15 +1081,15 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
 #ifdef CONFIG_QUOTA
 	if (!REISERFS_SB(s)->s_jquota_fmt && !*qfmt
 	    && (qf_names[USRQUOTA] || qf_names[GRPQUOTA])) {
-		reiserfs_warning(s,
-				 "reiserfs_parse_options: journaled quota format not specified.");
+		reiserfs_warning(s, "super-6515",
+				 "journaled quota format not specified.");
 		return 0;
 	}
 	/* This checking is not precise wrt the quota type but for our purposes it is sufficient */
 	if (!(*mount_options & (1 << REISERFS_QUOTA))
 	    && sb_any_quota_loaded(s)) {
-		reiserfs_warning(s,
-				 "reiserfs_parse_options: quota options must be present when quota is turned on.");
+		reiserfs_warning(s, "super-6516", "quota options must "
+				 "be present when quota is turned on.");
 		return 0;
 	}
 #endif
@@ -1131,14 +1149,15 @@ static void handle_attrs(struct super_block *s)
 
 	if (reiserfs_attrs(s)) {
 		if (old_format_only(s)) {
-			reiserfs_warning(s,
-					 "reiserfs: cannot support attributes on 3.5.x disk format");
+			reiserfs_warning(s, "super-6517", "cannot support "
+					 "attributes on 3.5.x disk format");
 			REISERFS_SB(s)->s_mount_opt &= ~(1 << REISERFS_ATTRS);
 			return;
 		}
 		if (!(le32_to_cpu(rs->s_flags) & reiserfs_attrs_cleared)) {
-			reiserfs_warning(s,
-					 "reiserfs: cannot support attributes until flag is set in super-block");
+			reiserfs_warning(s, "super-6518", "cannot support "
+					 "attributes until flag is set in "
+					 "super-block");
 			REISERFS_SB(s)->s_mount_opt &= ~(1 << REISERFS_ATTRS);
 		}
 	}
@@ -1316,7 +1335,7 @@ static int read_super_block(struct super_block *s, int offset)
 
 	bh = sb_bread(s, offset / s->s_blocksize);
 	if (!bh) {
-		reiserfs_warning(s, "sh-2006: read_super_block: "
+		reiserfs_warning(s, "sh-2006",
 				 "bread failed (dev %s, block %lu, size %lu)",
 				 reiserfs_bdevname(s), offset / s->s_blocksize,
 				 s->s_blocksize);
@@ -1337,8 +1356,8 @@ static int read_super_block(struct super_block *s, int offset)
 
 	bh = sb_bread(s, offset / s->s_blocksize);
 	if (!bh) {
-		reiserfs_warning(s, "sh-2007: read_super_block: "
-				 "bread failed (dev %s, block %lu, size %lu)\n",
+		reiserfs_warning(s, "sh-2007",
+				 "bread failed (dev %s, block %lu, size %lu)",
 				 reiserfs_bdevname(s), offset / s->s_blocksize,
 				 s->s_blocksize);
 		return 1;
@@ -1346,8 +1365,8 @@ static int read_super_block(struct super_block *s, int offset)
 
 	rs = (struct reiserfs_super_block *)bh->b_data;
 	if (sb_blocksize(rs) != s->s_blocksize) {
-		reiserfs_warning(s, "sh-2011: read_super_block: "
-				 "can't find a reiserfs filesystem on (dev %s, block %Lu, size %lu)\n",
+		reiserfs_warning(s, "sh-2011", "can't find a reiserfs "
+				 "filesystem on (dev %s, block %Lu, size %lu)",
 				 reiserfs_bdevname(s),
 				 (unsigned long long)bh->b_blocknr,
 				 s->s_blocksize);
@@ -1357,9 +1376,10 @@ static int read_super_block(struct super_block *s, int offset)
 
 	if (rs->s_v1.s_root_block == cpu_to_le32(-1)) {
 		brelse(bh);
-		reiserfs_warning(s,
-				 "Unfinished reiserfsck --rebuild-tree run detected. Please run\n"
-				 "reiserfsck --rebuild-tree and wait for a completion. If that fails\n"
+		reiserfs_warning(s, "super-6519", "Unfinished reiserfsck "
+				 "--rebuild-tree run detected. Please run\n"
+				 "reiserfsck --rebuild-tree and wait for a "
+				 "completion. If that fails\n"
 				 "get newer reiserfsprogs package");
 		return 1;
 	}
@@ -1377,10 +1397,9 @@ static int read_super_block(struct super_block *s, int offset)
 			reiserfs_info(s, "found reiserfs format \"3.5\""
 				      " with non-standard journal\n");
 		else {
-			reiserfs_warning(s,
-					 "sh-2012: read_super_block: found unknown "
-					 "format \"%u\" of reiserfs with non-standard magic",
-					 sb_version(rs));
+			reiserfs_warning(s, "sh-2012", "found unknown "
+					 "format \"%u\" of reiserfs with "
+					 "non-standard magic", sb_version(rs));
 			return 1;
 		}
 	} else
@@ -1410,8 +1429,7 @@ static int reread_meta_blocks(struct super_block *s)
 	ll_rw_block(READ, 1, &(SB_BUFFER_WITH_SB(s)));
 	wait_on_buffer(SB_BUFFER_WITH_SB(s));
 	if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
-		reiserfs_warning(s,
-				 "reread_meta_blocks, error reading the super");
+		reiserfs_warning(s, "reiserfs-2504", "error reading the super");
 		return 1;
 	}
 
@@ -1475,10 +1493,10 @@ static __u32 find_hash_out(struct super_block *s)
 			&& (yurahash ==
 			    GET_HASH_VALUE(deh_offset
 					   (&(de.de_deh[de.de_entry_num])))))) {
-			reiserfs_warning(s,
-					 "Unable to automatically detect hash function. "
-					 "Please mount with -o hash={tea,rupasov,r5}",
-					 reiserfs_bdevname(s));
+			reiserfs_warning(s, "reiserfs-2506", "Unable to "
+					 "automatically detect hash function. "
+					 "Please mount with -o "
+					 "hash={tea,rupasov,r5}");
 			hash = UNSET_HASH;
 			break;
 		}
@@ -1492,7 +1510,8 @@ static __u32 find_hash_out(struct super_block *s)
 			 (deh_offset(&(de.de_deh[de.de_entry_num]))) == r5hash)
 			hash = R5_HASH;
 		else {
-			reiserfs_warning(s, "Unrecognised hash function");
+			reiserfs_warning(s, "reiserfs-2506",
+					 "Unrecognised hash function");
 			hash = UNSET_HASH;
 		}
 	} while (0);
@@ -1520,17 +1539,20 @@ static int what_hash(struct super_block *s)
 		 ** mount options 
 		 */
 		if (reiserfs_rupasov_hash(s) && code != YURA_HASH) {
-			reiserfs_warning(s, "Error, %s hash detected, "
+			reiserfs_warning(s, "reiserfs-2507",
+					 "Error, %s hash detected, "
 					 "unable to force rupasov hash",
 					 reiserfs_hashname(code));
 			code = UNSET_HASH;
 		} else if (reiserfs_tea_hash(s) && code != TEA_HASH) {
-			reiserfs_warning(s, "Error, %s hash detected, "
+			reiserfs_warning(s, "reiserfs-2508",
+					 "Error, %s hash detected, "
 					 "unable to force tea hash",
 					 reiserfs_hashname(code));
 			code = UNSET_HASH;
 		} else if (reiserfs_r5_hash(s) && code != R5_HASH) {
-			reiserfs_warning(s, "Error, %s hash detected, "
+			reiserfs_warning(s, "reiserfs-2509",
+					 "Error, %s hash detected, "
 					 "unable to force r5 hash",
 					 reiserfs_hashname(code));
 			code = UNSET_HASH;
@@ -1589,9 +1611,9 @@ static int function2code(hashf_t func)
 	return 0;
 }
 
-#define SWARN(silent, s, ...)			\
+#define SWARN(silent, s, id, ...)			\
 	if (!(silent))				\
-		reiserfs_warning (s, __VA_ARGS__)
+		reiserfs_warning(s, id, __VA_ARGS__)
 
 static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 {
@@ -1643,8 +1665,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 #endif
 
 	if (blocks) {
-		SWARN(silent, s, "jmacd-7: reiserfs_fill_super: resize option "
-		      "for remount only");
+		SWARN(silent, s, "jmacd-7", "resize option for remount only");
 		goto error;
 	}
 
@@ -1653,8 +1674,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 		old_format = 1;
 	/* try new format (64-th 1k block), which can contain reiserfs super block */
 	else if (read_super_block(s, REISERFS_DISK_OFFSET_IN_BYTES)) {
-		SWARN(silent, s,
-		      "sh-2021: reiserfs_fill_super: can not find reiserfs on %s",
+		SWARN(silent, s, "sh-2021", "can not find reiserfs on %s",
 		      reiserfs_bdevname(s));
 		goto error;
 	}
@@ -1666,13 +1686,12 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	if (s->s_bdev && s->s_bdev->bd_inode
 	    && i_size_read(s->s_bdev->bd_inode) <
 	    sb_block_count(rs) * sb_blocksize(rs)) {
-		SWARN(silent, s,
-		      "Filesystem on %s cannot be mounted because it is bigger than the device",
-		      reiserfs_bdevname(s));
-		SWARN(silent, s,
-		      "You may need to run fsck or increase size of your LVM partition");
-		SWARN(silent, s,
-		      "Or may be you forgot to reboot after fdisk when it told you to");
+		SWARN(silent, s, "", "Filesystem cannot be "
+		      "mounted because it is bigger than the device");
+		SWARN(silent, s, "", "You may need to run fsck "
+		      "or increase size of your LVM partition");
+		SWARN(silent, s, "", "Or may be you forgot to "
+		      "reboot after fdisk when it told you to");
 		goto error;
 	}
 
@@ -1680,14 +1699,13 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	sbi->s_mount_state = REISERFS_VALID_FS;
 
 	if ((errval = reiserfs_init_bitmap_cache(s))) {
-		SWARN(silent, s,
-		      "jmacd-8: reiserfs_fill_super: unable to read bitmap");
+		SWARN(silent, s, "jmacd-8", "unable to read bitmap");
 		goto error;
 	}
 	errval = -EINVAL;
 #ifdef CONFIG_REISERFS_CHECK
-	SWARN(silent, s, "CONFIG_REISERFS_CHECK is set ON");
-	SWARN(silent, s, "- it is slow mode for debugging.");
+	SWARN(silent, s, "", "CONFIG_REISERFS_CHECK is set ON");
+	SWARN(silent, s, "", "- it is slow mode for debugging.");
 #endif
 
 	/* make data=ordered the default */
@@ -1708,8 +1726,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	}
 	// set_device_ro(s->s_dev, 1) ;
 	if (journal_init(s, jdev_name, old_format, commit_max_age)) {
-		SWARN(silent, s,
-		      "sh-2022: reiserfs_fill_super: unable to initialize journal space");
+		SWARN(silent, s, "sh-2022",
+		      "unable to initialize journal space");
 		goto error;
 	} else {
 		jinit_done = 1;	/* once this is set, journal_release must be called
@@ -1717,8 +1735,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 				 */
 	}
 	if (reread_meta_blocks(s)) {
-		SWARN(silent, s,
-		      "jmacd-9: reiserfs_fill_super: unable to reread meta blocks after journal init");
+		SWARN(silent, s, "jmacd-9",
+		      "unable to reread meta blocks after journal init");
 		goto error;
 	}
 
@@ -1726,8 +1744,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 		goto error;
 
 	if (bdev_read_only(s->s_bdev) && !(s->s_flags & MS_RDONLY)) {
-		SWARN(silent, s,
-		      "clm-7000: Detected readonly device, marking FS readonly");
+		SWARN(silent, s, "clm-7000",
+		      "Detected readonly device, marking FS readonly");
 		s->s_flags |= MS_RDONLY;
 	}
 	args.objectid = REISERFS_ROOT_OBJECTID;
@@ -1736,8 +1754,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	    iget5_locked(s, REISERFS_ROOT_OBJECTID, reiserfs_find_actor,
 			 reiserfs_init_locked_inode, (void *)(&args));
 	if (!root_inode) {
-		SWARN(silent, s,
-		      "jmacd-10: reiserfs_fill_super: get root inode failed");
+		SWARN(silent, s, "jmacd-10", "get root inode failed");
 		goto error;
 	}
 
@@ -1786,7 +1803,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 		 * avoiding corruption. -jeffm */
 		if (bmap_would_wrap(reiserfs_bmap_count(s)) &&
 		    sb_bmap_nr(rs) != 0) {
-			reiserfs_warning(s, "super-2030: This file system "
+			reiserfs_warning(s, "super-2030", "This file system "
 					"claims to use %u bitmap blocks in "
 					"its super block, but requires %u. "
 					"Clearing to zero.", sb_bmap_nr(rs),
@@ -2087,8 +2104,8 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
 	if (!(REISERFS_I(inode)->i_flags & i_nopack_mask)) {
 		err = reiserfs_unpack(inode, NULL);
 		if (err) {
-			reiserfs_warning(sb,
-				"reiserfs: Unpacking tail of quota file failed"
+			reiserfs_warning(sb, "super-6520",
+				"Unpacking tail of quota file failed"
 				" (%d). Cannot turn on quotas.", err);
 			err = -EINVAL;
 			goto out;
@@ -2099,8 +2116,8 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
 	if (REISERFS_SB(sb)->s_qf_names[type]) {
 		/* Quotafile not of fs root? */
 		if (path.dentry->d_parent != sb->s_root)
-			reiserfs_warning(sb,
-				 "reiserfs: Quota file not on filesystem root. "
+			reiserfs_warning(sb, "super-6521",
+				 "Quota file not on filesystem root. "
 				 "Journalled quota will not work.");
 	}
 
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index f8121a1147e8..256285dddb20 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -48,9 +48,9 @@ int direct2indirect(struct reiserfs_transaction_handle *th, struct inode *inode,
 
 	// FIXME: we could avoid this 
 	if (search_for_position_by_key(sb, &end_key, path) == POSITION_FOUND) {
-		reiserfs_warning(sb, "PAP-14030: direct2indirect: "
-				 "pasted or inserted byte exists in the tree %K. "
-				 "Use fsck to repair.", &end_key);
+		reiserfs_warning(sb, "PAP-14030",
+				 "pasted or inserted byte exists in "
+				 "the tree %K. Use fsck to repair.", &end_key);
 		pathrelse(path);
 		return -EIO;
 	}
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index e11b00472361..d14f5c2c0e4a 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -259,7 +259,8 @@ static int __xattr_readdir(struct inode *inode, void *dirent, filldir_t filldir)
 		ih = de.de_ih;
 
 		if (!is_direntry_le_ih(ih)) {
-			reiserfs_warning(inode->i_sb, "not direntry %h", ih);
+			reiserfs_warning(inode->i_sb, "jdm-20000",
+					 "not direntry %h", ih);
 			break;
 		}
 		copy_item_head(&tmp_ih, ih);
@@ -598,7 +599,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 			if (rxh->h_magic != cpu_to_le32(REISERFS_XATTR_MAGIC)) {
 				unlock_page(page);
 				reiserfs_put_page(page);
-				reiserfs_warning(inode->i_sb,
+				reiserfs_warning(inode->i_sb, "jdm-20001",
 						 "Invalid magic for xattr (%s) "
 						 "associated with %k", name,
 						 INODE_PKEY(inode));
@@ -618,7 +619,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 
 	if (xattr_hash(buffer, isize - sizeof(struct reiserfs_xattr_header)) !=
 	    hash) {
-		reiserfs_warning(inode->i_sb,
+		reiserfs_warning(inode->i_sb, "jdm-20002",
 				 "Invalid hash for xattr (%s) associated "
 				 "with %k", name, INODE_PKEY(inode));
 		err = -EIO;
@@ -652,7 +653,8 @@ __reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
 		goto out_file;
 
 	if (!is_reiserfs_priv_object(dentry->d_inode)) {
-		reiserfs_warning(dir->i_sb, "OID %08x [%.*s/%.*s] doesn't have "
+		reiserfs_warning(dir->i_sb, "jdm-20003",
+				 "OID %08x [%.*s/%.*s] doesn't have "
 				 "priv flag set [parent is %sset].",
 				 le32_to_cpu(INODE_PKEY(dentry->d_inode)->
 					     k_objectid), xadir->d_name.len,
@@ -750,7 +752,7 @@ int reiserfs_delete_xattrs(struct inode *inode)
 		reiserfs_write_unlock_xattrs(inode->i_sb);
 		dput(root);
 	} else {
-		reiserfs_warning(inode->i_sb,
+		reiserfs_warning(inode->i_sb, "jdm-20006",
 				 "Couldn't remove all entries in directory");
 	}
 	unlock_kernel();
@@ -1154,7 +1156,8 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
 	} else if (reiserfs_xattrs_optional(s)) {
 		/* Old format filesystem, but optional xattrs have been enabled
 		 * at mount time. Error out. */
-		reiserfs_warning(s, "xattrs/ACLs not supported on pre v3.6 "
+		reiserfs_warning(s, "jdm-20005",
+				 "xattrs/ACLs not supported on pre v3.6 "
 				 "format filesystem. Failing mount.");
 		err = -EOPNOTSUPP;
 		goto error;
@@ -1201,8 +1204,10 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
 			/* If we're read-only it just means that the dir hasn't been
 			 * created. Not an error -- just no xattrs on the fs. We'll
 			 * check again if we go read-write */
-			reiserfs_warning(s, "xattrs/ACLs enabled and couldn't "
-					 "find/create .reiserfs_priv. Failing mount.");
+			reiserfs_warning(s, "jdm-20006",
+					 "xattrs/ACLs enabled and couldn't "
+					 "find/create .reiserfs_priv. "
+					 "Failing mount.");
 			err = -EOPNOTSUPP;
 		}
 	}
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 65bb5e3e3abe..056e2a3b04e3 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -79,7 +79,10 @@ struct fid;
 */
 #define REISERFS_DEBUG_CODE 5	/* extra messages to help find/debug errors */
 
-void reiserfs_warning(struct super_block *s, const char *fmt, ...);
+void __reiserfs_warning(struct super_block *s, const char *id,
+			 const char *func, const char *fmt, ...);
+#define reiserfs_warning(s, id, fmt, args...) \
+	 __reiserfs_warning(s, id, __func__, fmt, ##args)
 /* assertions handling */
 
 /** always check a condition and panic if it's false. */
@@ -558,7 +561,7 @@ static inline int uniqueness2type(__u32 uniqueness)
 	case V1_DIRENTRY_UNIQUENESS:
 		return TYPE_DIRENTRY;
 	default:
-		reiserfs_warning(NULL, "vs-500: unknown uniqueness %d",
+		reiserfs_warning(NULL, "vs-500", "unknown uniqueness %d",
 				 uniqueness);
 	case V1_ANY_UNIQUENESS:
 		return TYPE_ANY;
@@ -578,7 +581,7 @@ static inline __u32 type2uniqueness(int type)
 	case TYPE_DIRENTRY:
 		return V1_DIRENTRY_UNIQUENESS;
 	default:
-		reiserfs_warning(NULL, "vs-501: unknown type %d", type);
+		reiserfs_warning(NULL, "vs-501", "unknown type %d", type);
 	case TYPE_ANY:
 		return V1_ANY_UNIQUENESS;
 	}
-- 
cgit v1.2.3


From fd7cb031efb1dd71cb731668e2f597d9e61acdcb Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:23 -0400
Subject: reiserfs: eliminate reiserfs_warning from uniqueness functions

uniqueness2type and type2uniquness issue a warning when the value is
unknown. When called from reiserfs_warning, this causes a re-entrancy
problem and deadlocks on the error buffer lock.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/reiserfs_fs.h | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 056e2a3b04e3..cf5407ee0f32 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -560,10 +560,8 @@ static inline int uniqueness2type(__u32 uniqueness)
 		return TYPE_DIRECT;
 	case V1_DIRENTRY_UNIQUENESS:
 		return TYPE_DIRENTRY;
-	default:
-		reiserfs_warning(NULL, "vs-500", "unknown uniqueness %d",
-				 uniqueness);
 	case V1_ANY_UNIQUENESS:
+	default:
 		return TYPE_ANY;
 	}
 }
@@ -580,9 +578,8 @@ static inline __u32 type2uniqueness(int type)
 		return V1_DIRECT_UNIQUENESS;
 	case TYPE_DIRENTRY:
 		return V1_DIRENTRY_UNIQUENESS;
-	default:
-		reiserfs_warning(NULL, "vs-501", "unknown type %d", type);
 	case TYPE_ANY:
+	default:
 		return V1_ANY_UNIQUENESS;
 	}
 }
-- 
cgit v1.2.3


From c3a9c2109f84882b9b3178f6b1838d550d3df0ec Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:25 -0400
Subject: reiserfs: rework reiserfs_panic

ReiserFS panics can be somewhat inconsistent.
In some cases:
 * a unique identifier may be associated with it
 * the function name may be included
 * the device may be printed separately

This patch aims to make warnings more consistent. reiserfs_warning() prints
the device name, so printing it a second time is not required. The function
name for a warning is always helpful in debugging, so it is now automatically
inserted into the output. Hans has stated that every warning should have
a unique identifier. Some cases lack them, others really shouldn't have them.
reiserfs_warning() now expects an id associated with each message. In the
rare case where one isn't needed, "" will suffice.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/do_balan.c        | 67 ++++++++++++++++++++++--------------------
 fs/reiserfs/fix_node.c        | 68 ++++++++++++++++++++++---------------------
 fs/reiserfs/ibalance.c        | 12 ++++----
 fs/reiserfs/inode.c           |  3 +-
 fs/reiserfs/item_ops.c        |  8 +++--
 fs/reiserfs/journal.c         | 57 ++++++++++++++++++------------------
 fs/reiserfs/lbalance.c        | 27 +++++++++--------
 fs/reiserfs/namei.c           | 18 +++++-------
 fs/reiserfs/objectid.c        |  3 +-
 fs/reiserfs/prints.c          | 33 ++++++++++-----------
 fs/reiserfs/stree.c           | 49 +++++++++++++++----------------
 fs/reiserfs/tail_conversion.c | 10 +++----
 include/linux/reiserfs_fs.h   | 28 ++++++++++++++----
 13 files changed, 200 insertions(+), 183 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index f701f37ddf98..e788fbc3ff6b 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -153,8 +153,8 @@ static int balance_leaf_when_delete(struct tree_balance *tb, int flag)
 
 	default:
 		print_cur_tb("12040");
-		reiserfs_panic(tb->tb_sb,
-			       "PAP-12040: balance_leaf_when_delete: unexpectable mode: %s(%d)",
+		reiserfs_panic(tb->tb_sb, "PAP-12040",
+			       "unexpected mode: %s(%d)",
 			       (flag ==
 				M_PASTE) ? "PASTE" : ((flag ==
 						       M_INSERT) ? "INSERT" :
@@ -721,8 +721,9 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 				}
 				break;
 			default:	/* cases d and t */
-				reiserfs_panic(tb->tb_sb,
-					       "PAP-12130: balance_leaf: lnum > 0: unexpectable mode: %s(%d)",
+				reiserfs_panic(tb->tb_sb, "PAP-12130",
+					       "lnum > 0: unexpected mode: "
+					       " %s(%d)",
 					       (flag ==
 						M_DELETE) ? "DELETE" : ((flag ==
 									 M_CUT)
@@ -1134,8 +1135,8 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 			}
 			break;
 		default:	/* cases d and t */
-			reiserfs_panic(tb->tb_sb,
-				       "PAP-12175: balance_leaf: rnum > 0: unexpectable mode: %s(%d)",
+			reiserfs_panic(tb->tb_sb, "PAP-12175",
+				       "rnum > 0: unexpected mode: %s(%d)",
 				       (flag ==
 					M_DELETE) ? "DELETE" : ((flag ==
 								 M_CUT) ? "CUT"
@@ -1165,8 +1166,8 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 		   not set correctly */
 		if (tb->CFL[0]) {
 			if (!tb->CFR[0])
-				reiserfs_panic(tb->tb_sb,
-					       "vs-12195: balance_leaf: CFR not initialized");
+				reiserfs_panic(tb->tb_sb, "vs-12195",
+					       "CFR not initialized");
 			copy_key(B_N_PDELIM_KEY(tb->CFL[0], tb->lkey[0]),
 				 B_N_PDELIM_KEY(tb->CFR[0], tb->rkey[0]));
 			do_balance_mark_internal_dirty(tb, tb->CFL[0], 0);
@@ -1472,7 +1473,10 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 					    && (pos_in_item != ih_item_len(ih_check)
 						|| tb->insert_size[0] <= 0))
 						reiserfs_panic(tb->tb_sb,
-							       "PAP-12235: balance_leaf: pos_in_item must be equal to ih_item_len");
+							     "PAP-12235",
+							     "pos_in_item "
+							     "must be equal "
+							     "to ih_item_len");
 #endif				/* CONFIG_REISERFS_CHECK */
 
 					leaf_mi =
@@ -1532,8 +1536,8 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 			}
 			break;
 		default:	/* cases d and t */
-			reiserfs_panic(tb->tb_sb,
-				       "PAP-12245: balance_leaf: blknum > 2: unexpectable mode: %s(%d)",
+			reiserfs_panic(tb->tb_sb, "PAP-12245",
+				       "blknum > 2: unexpected mode: %s(%d)",
 				       (flag ==
 					M_DELETE) ? "DELETE" : ((flag ==
 								 M_CUT) ? "CUT"
@@ -1678,10 +1682,11 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 							print_cur_tb("12285");
 							reiserfs_panic(tb->
 								       tb_sb,
-								       "PAP-12285: balance_leaf: insert_size must be 0 (%d)",
-								       tb->
-								       insert_size
-								       [0]);
+							    "PAP-12285",
+							    "insert_size "
+							    "must be 0 "
+							    "(%d)",
+							    tb->insert_size[0]);
 						}
 					}
 #endif				/* CONFIG_REISERFS_CHECK */
@@ -1694,11 +1699,10 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
 	if (flag == M_PASTE && tb->insert_size[0]) {
 		print_cur_tb("12290");
 		reiserfs_panic(tb->tb_sb,
-			       "PAP-12290: balance_leaf: insert_size is still not 0 (%d)",
+			       "PAP-12290", "insert_size is still not 0 (%d)",
 			       tb->insert_size[0]);
 	}
 #endif				/* CONFIG_REISERFS_CHECK */
-
 	return 0;
 }				/* Leaf level of the tree is balanced (end of balance_leaf) */
 
@@ -1729,8 +1733,7 @@ struct buffer_head *get_FEB(struct tree_balance *tb)
 			break;
 
 	if (i == MAX_FEB_SIZE)
-		reiserfs_panic(tb->tb_sb,
-			       "vs-12300: get_FEB: FEB list is empty");
+		reiserfs_panic(tb->tb_sb, "vs-12300", "FEB list is empty");
 
 	bi.tb = tb;
 	bi.bi_bh = first_b = tb->FEB[i];
@@ -1871,8 +1874,8 @@ static void check_internal_node(struct super_block *s, struct buffer_head *bh,
 	for (i = 0; i <= B_NR_ITEMS(bh); i++, dc++) {
 		if (!is_reusable(s, dc_block_number(dc), 1)) {
 			print_cur_tb(mes);
-			reiserfs_panic(s,
-				       "PAP-12338: check_internal_node: invalid child pointer %y in %b",
+			reiserfs_panic(s, "PAP-12338",
+				       "invalid child pointer %y in %b",
 				       dc, bh);
 		}
 	}
@@ -1894,9 +1897,10 @@ static int check_before_balancing(struct tree_balance *tb)
 	int retval = 0;
 
 	if (cur_tb) {
-		reiserfs_panic(tb->tb_sb, "vs-12335: check_before_balancing: "
-			       "suspect that schedule occurred based on cur_tb not being null at this point in code. "
-			       "do_balance cannot properly handle schedule occurring while it runs.");
+		reiserfs_panic(tb->tb_sb, "vs-12335", "suspect that schedule "
+			       "occurred based on cur_tb not being null at "
+			       "this point in code. do_balance cannot properly "
+			       "handle schedule occurring while it runs.");
 	}
 
 	/* double check that buffers that we will modify are unlocked. (fix_nodes should already have
@@ -1928,8 +1932,8 @@ static void check_after_balance_leaf(struct tree_balance *tb)
 		    dc_size(B_N_CHILD
 			    (tb->FL[0], get_left_neighbor_position(tb, 0)))) {
 			print_cur_tb("12221");
-			reiserfs_panic(tb->tb_sb,
-				       "PAP-12355: check_after_balance_leaf: shift to left was incorrect");
+			reiserfs_panic(tb->tb_sb, "PAP-12355",
+				       "shift to left was incorrect");
 		}
 	}
 	if (tb->rnum[0]) {
@@ -1938,8 +1942,8 @@ static void check_after_balance_leaf(struct tree_balance *tb)
 		    dc_size(B_N_CHILD
 			    (tb->FR[0], get_right_neighbor_position(tb, 0)))) {
 			print_cur_tb("12222");
-			reiserfs_panic(tb->tb_sb,
-				       "PAP-12360: check_after_balance_leaf: shift to right was incorrect");
+			reiserfs_panic(tb->tb_sb, "PAP-12360",
+				       "shift to right was incorrect");
 		}
 	}
 	if (PATH_H_PBUFFER(tb->tb_path, 1) &&
@@ -1964,8 +1968,7 @@ static void check_after_balance_leaf(struct tree_balance *tb)
 					 (PATH_H_PBUFFER(tb->tb_path, 1),
 					  PATH_H_POSITION(tb->tb_path, 1))),
 				 right);
-		reiserfs_panic(tb->tb_sb,
-			       "PAP-12365: check_after_balance_leaf: S is incorrect");
+		reiserfs_panic(tb->tb_sb, "PAP-12365", "S is incorrect");
 	}
 }
 
@@ -2100,8 +2103,8 @@ void do_balance(struct tree_balance *tb,	/* tree_balance structure */
 	tb->need_balance_dirty = 0;
 
 	if (FILESYSTEM_CHANGED_TB(tb)) {
-		reiserfs_panic(tb->tb_sb,
-			       "clm-6000: do_balance, fs generation has changed\n");
+		reiserfs_panic(tb->tb_sb, "clm-6000", "fs generation has "
+			       "changed");
 	}
 	/* if we have no real work to do  */
 	if (!tb->insert_size[0]) {
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 59735a9e2349..bbb37b0589af 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -135,8 +135,7 @@ static void create_virtual_node(struct tree_balance *tb, int h)
 		vn->vn_free_ptr +=
 		    op_create_vi(vn, vi, is_affected, tb->insert_size[0]);
 		if (tb->vn_buf + tb->vn_buf_size < vn->vn_free_ptr)
-			reiserfs_panic(tb->tb_sb,
-				       "vs-8030: create_virtual_node: "
+			reiserfs_panic(tb->tb_sb, "vs-8030",
 				       "virtual node space consumed");
 
 		if (!is_affected)
@@ -186,8 +185,9 @@ static void create_virtual_node(struct tree_balance *tb, int h)
 			     && I_ENTRY_COUNT(B_N_PITEM_HEAD(Sh, 0)) == 1)) {
 				/* node contains more than 1 item, or item is not directory item, or this item contains more than 1 entry */
 				print_block(Sh, 0, -1, -1);
-				reiserfs_panic(tb->tb_sb,
-					       "vs-8045: create_virtual_node: rdkey %k, affected item==%d (mode==%c) Must be %c",
+				reiserfs_panic(tb->tb_sb, "vs-8045",
+					       "rdkey %k, affected item==%d "
+					       "(mode==%c) Must be %c",
 					       key, vn->vn_affected_item_num,
 					       vn->vn_mode, M_DELETE);
 			}
@@ -1255,8 +1255,8 @@ static int ip_check_balance(struct tree_balance *tb, int h)
 	/* Calculate balance parameters for creating new root. */
 	if (!Sh) {
 		if (!h)
-			reiserfs_panic(tb->tb_sb,
-				       "vs-8210: ip_check_balance: S[0] can not be 0");
+			reiserfs_panic(tb->tb_sb, "vs-8210",
+				       "S[0] can not be 0");
 		switch (n_ret_value = get_empty_nodes(tb, h)) {
 		case CARRY_ON:
 			set_parameters(tb, h, 0, 0, 1, NULL, -1, -1);
@@ -1266,8 +1266,8 @@ static int ip_check_balance(struct tree_balance *tb, int h)
 		case REPEAT_SEARCH:
 			return n_ret_value;
 		default:
-			reiserfs_panic(tb->tb_sb,
-				       "vs-8215: ip_check_balance: incorrect return value of get_empty_nodes");
+			reiserfs_panic(tb->tb_sb, "vs-8215", "incorrect "
+				       "return value of get_empty_nodes");
 		}
 	}
 
@@ -2095,38 +2095,38 @@ static void tb_buffer_sanity_check(struct super_block *p_s_sb,
 	if (p_s_bh) {
 		if (atomic_read(&(p_s_bh->b_count)) <= 0) {
 
-			reiserfs_panic(p_s_sb,
-				       "jmacd-1: tb_buffer_sanity_check(): negative or zero reference counter for buffer %s[%d] (%b)\n",
-				       descr, level, p_s_bh);
+			reiserfs_panic(p_s_sb, "jmacd-1", "negative or zero "
+				       "reference counter for buffer %s[%d] "
+				       "(%b)", descr, level, p_s_bh);
 		}
 
 		if (!buffer_uptodate(p_s_bh)) {
-			reiserfs_panic(p_s_sb,
-				       "jmacd-2: tb_buffer_sanity_check(): buffer is not up to date %s[%d] (%b)\n",
+			reiserfs_panic(p_s_sb, "jmacd-2", "buffer is not up "
+				       "to date %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 
 		if (!B_IS_IN_TREE(p_s_bh)) {
-			reiserfs_panic(p_s_sb,
-				       "jmacd-3: tb_buffer_sanity_check(): buffer is not in tree %s[%d] (%b)\n",
+			reiserfs_panic(p_s_sb, "jmacd-3", "buffer is not "
+				       "in tree %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 
 		if (p_s_bh->b_bdev != p_s_sb->s_bdev) {
-			reiserfs_panic(p_s_sb,
-				       "jmacd-4: tb_buffer_sanity_check(): buffer has wrong device %s[%d] (%b)\n",
+			reiserfs_panic(p_s_sb, "jmacd-4", "buffer has wrong "
+				       "device %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 
 		if (p_s_bh->b_size != p_s_sb->s_blocksize) {
-			reiserfs_panic(p_s_sb,
-				       "jmacd-5: tb_buffer_sanity_check(): buffer has wrong blocksize %s[%d] (%b)\n",
+			reiserfs_panic(p_s_sb, "jmacd-5", "buffer has wrong "
+				       "blocksize %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 
 		if (p_s_bh->b_blocknr > SB_BLOCK_COUNT(p_s_sb)) {
-			reiserfs_panic(p_s_sb,
-				       "jmacd-6: tb_buffer_sanity_check(): buffer block number too high %s[%d] (%b)\n",
+			reiserfs_panic(p_s_sb, "jmacd-6", "buffer block "
+				       "number too high %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 	}
@@ -2358,14 +2358,14 @@ int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb, struct item_head *p_s_
 #ifdef CONFIG_REISERFS_CHECK
 	if (cur_tb) {
 		print_cur_tb("fix_nodes");
-		reiserfs_panic(p_s_tb->tb_sb,
-			       "PAP-8305: fix_nodes:  there is pending do_balance");
+		reiserfs_panic(p_s_tb->tb_sb, "PAP-8305",
+			       "there is pending do_balance");
 	}
 
 	if (!buffer_uptodate(p_s_tbS0) || !B_IS_IN_TREE(p_s_tbS0)) {
-		reiserfs_panic(p_s_tb->tb_sb,
-			       "PAP-8320: fix_nodes: S[0] (%b %z) is not uptodate "
-			       "at the beginning of fix_nodes or not in tree (mode %c)",
+		reiserfs_panic(p_s_tb->tb_sb, "PAP-8320", "S[0] (%b %z) is "
+			       "not uptodate at the beginning of fix_nodes "
+			       "or not in tree (mode %c)",
 			       p_s_tbS0, p_s_tbS0, n_op_mode);
 	}
 
@@ -2373,24 +2373,26 @@ int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb, struct item_head *p_s_
 	switch (n_op_mode) {
 	case M_INSERT:
 		if (n_item_num <= 0 || n_item_num > B_NR_ITEMS(p_s_tbS0))
-			reiserfs_panic(p_s_tb->tb_sb,
-				       "PAP-8330: fix_nodes: Incorrect item number %d (in S0 - %d) in case of insert",
-				       n_item_num, B_NR_ITEMS(p_s_tbS0));
+			reiserfs_panic(p_s_tb->tb_sb, "PAP-8330", "Incorrect "
+				       "item number %d (in S0 - %d) in case "
+				       "of insert", n_item_num,
+				       B_NR_ITEMS(p_s_tbS0));
 		break;
 	case M_PASTE:
 	case M_DELETE:
 	case M_CUT:
 		if (n_item_num < 0 || n_item_num >= B_NR_ITEMS(p_s_tbS0)) {
 			print_block(p_s_tbS0, 0, -1, -1);
-			reiserfs_panic(p_s_tb->tb_sb,
-				       "PAP-8335: fix_nodes: Incorrect item number(%d); mode = %c insert_size = %d\n",
+			reiserfs_panic(p_s_tb->tb_sb, "PAP-8335", "Incorrect "
+				       "item number(%d); mode = %c "
+				       "insert_size = %d",
 				       n_item_num, n_op_mode,
 				       p_s_tb->insert_size[0]);
 		}
 		break;
 	default:
-		reiserfs_panic(p_s_tb->tb_sb,
-			       "PAP-8340: fix_nodes: Incorrect mode of operation");
+		reiserfs_panic(p_s_tb->tb_sb, "PAP-8340", "Incorrect mode "
+			       "of operation");
 	}
 #endif
 
diff --git a/fs/reiserfs/ibalance.c b/fs/reiserfs/ibalance.c
index de391a82b999..063b5514fe29 100644
--- a/fs/reiserfs/ibalance.c
+++ b/fs/reiserfs/ibalance.c
@@ -105,8 +105,8 @@ static void internal_define_dest_src_infos(int shift_mode,
 		break;
 
 	default:
-		reiserfs_panic(tb->tb_sb,
-			       "internal_define_dest_src_infos: shift type is unknown (%d)",
+		reiserfs_panic(tb->tb_sb, "ibalance-1",
+			       "shift type is unknown (%d)",
 			       shift_mode);
 	}
 }
@@ -702,8 +702,8 @@ static void balance_internal_when_delete(struct tree_balance *tb,
 
 		return;
 	}
-	reiserfs_panic(tb->tb_sb,
-		       "balance_internal_when_delete: unexpected tb->lnum[%d]==%d or tb->rnum[%d]==%d",
+	reiserfs_panic(tb->tb_sb, "ibalance-2",
+		       "unexpected tb->lnum[%d]==%d or tb->rnum[%d]==%d",
 		       h, tb->lnum[h], h, tb->rnum[h]);
 }
 
@@ -940,8 +940,8 @@ int balance_internal(struct tree_balance *tb,	/* tree_balance structure
 		struct block_head *blkh;
 
 		if (tb->blknum[h] != 1)
-			reiserfs_panic(NULL,
-				       "balance_internal: One new node required for creating the new root");
+			reiserfs_panic(NULL, "ibalance-3", "One new node "
+				       "required for creating the new root");
 		/* S[h] = empty buffer from the list FEB. */
 		tbSh = get_FEB(tb);
 		blkh = B_BLK_HEAD(tbSh);
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 95157762b1bf..7ee0097004c0 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1300,8 +1300,7 @@ static void update_stat_data(struct treepath *path, struct inode *inode,
 	ih = PATH_PITEM_HEAD(path);
 
 	if (!is_statdata_le_ih(ih))
-		reiserfs_panic(inode->i_sb,
-			       "vs-13065: update_stat_data: key %k, found item %h",
+		reiserfs_panic(inode->i_sb, "vs-13065", "key %k, found item %h",
 			       INODE_PKEY(inode), ih);
 
 	if (stat_data_v1(ih)) {
diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
index 8a11cf39f57b..72cb1cc51b87 100644
--- a/fs/reiserfs/item_ops.c
+++ b/fs/reiserfs/item_ops.c
@@ -517,8 +517,9 @@ static int direntry_create_vi(struct virtual_node *vn,
 		    ((is_affected
 		      && (vn->vn_mode == M_PASTE
 			  || vn->vn_mode == M_CUT)) ? insert_size : 0)) {
-			reiserfs_panic(NULL,
-				       "vs-8025: set_entry_sizes: (mode==%c, insert_size==%d), invalid length of directory item",
+			reiserfs_panic(NULL, "vs-8025", "(mode==%c, "
+				       "insert_size==%d), invalid length of "
+				       "directory item",
 				       vn->vn_mode, insert_size);
 		}
 	}
@@ -549,7 +550,8 @@ static int direntry_check_left(struct virtual_item *vi, int free,
 	}
 
 	if (entries == dir_u->entry_count) {
-		reiserfs_panic(NULL, "free space %d, entry_count %d\n", free,
+		reiserfs_panic(NULL, "item_ops-1",
+			       "free space %d, entry_count %d", free,
 			       dir_u->entry_count);
 	}
 
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 88a031fafd07..774f3ba37409 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -436,8 +436,8 @@ void reiserfs_check_lock_depth(struct super_block *sb, char *caller)
 {
 #ifdef CONFIG_SMP
 	if (current->lock_depth < 0) {
-		reiserfs_panic(sb, "%s called without kernel lock held",
-			       caller);
+		reiserfs_panic(sb, "journal-1", "%s called without kernel "
+			       "lock held", caller);
 	}
 #else
 	;
@@ -574,7 +574,7 @@ static inline void put_journal_list(struct super_block *s,
 				    struct reiserfs_journal_list *jl)
 {
 	if (jl->j_refcount < 1) {
-		reiserfs_panic(s, "trans id %u, refcount at %d",
+		reiserfs_panic(s, "journal-2", "trans id %u, refcount at %d",
 			       jl->j_trans_id, jl->j_refcount);
 	}
 	if (--jl->j_refcount == 0)
@@ -1416,8 +1416,7 @@ static int flush_journal_list(struct super_block *s,
 
 	count = 0;
 	if (j_len_saved > journal->j_trans_max) {
-		reiserfs_panic(s,
-			       "journal-715: flush_journal_list, length is %lu, trans id %lu\n",
+		reiserfs_panic(s, "journal-715", "length is %lu, trans id %lu",
 			       j_len_saved, jl->j_trans_id);
 		return 0;
 	}
@@ -1449,8 +1448,8 @@ static int flush_journal_list(struct super_block *s,
 	 ** or wait on a more recent transaction, or just ignore it 
 	 */
 	if (atomic_read(&(journal->j_wcount)) != 0) {
-		reiserfs_panic(s,
-			       "journal-844: panic journal list is flushing, wcount is not 0\n");
+		reiserfs_panic(s, "journal-844", "journal list is flushing, "
+			       "wcount is not 0");
 	}
 	cn = jl->j_realblock;
 	while (cn) {
@@ -1551,13 +1550,13 @@ static int flush_journal_list(struct super_block *s,
 		while (cn) {
 			if (test_bit(BLOCK_NEEDS_FLUSH, &cn->state)) {
 				if (!cn->bh) {
-					reiserfs_panic(s,
-						       "journal-1011: cn->bh is NULL\n");
+					reiserfs_panic(s, "journal-1011",
+						       "cn->bh is NULL");
 				}
 				wait_on_buffer(cn->bh);
 				if (!cn->bh) {
-					reiserfs_panic(s,
-						       "journal-1012: cn->bh is NULL\n");
+					reiserfs_panic(s, "journal-1012",
+						       "cn->bh is NULL");
 				}
 				if (unlikely(!buffer_uptodate(cn->bh))) {
 #ifdef CONFIG_REISERFS_CHECK
@@ -3255,8 +3254,8 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 
 	PROC_INFO_INC(p_s_sb, journal.mark_dirty);
 	if (th->t_trans_id != journal->j_trans_id) {
-		reiserfs_panic(th->t_super,
-			       "journal-1577: handle trans id %ld != current trans id %ld\n",
+		reiserfs_panic(th->t_super, "journal-1577",
+			       "handle trans id %ld != current trans id %ld",
 			       th->t_trans_id, journal->j_trans_id);
 	}
 
@@ -3295,8 +3294,8 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 	 ** Nothing can be done here, except make the FS readonly or panic.
 	 */
 	if (journal->j_len >= journal->j_trans_max) {
-		reiserfs_panic(th->t_super,
-			       "journal-1413: journal_mark_dirty: j_len (%lu) is too big\n",
+		reiserfs_panic(th->t_super, "journal-1413",
+			       "j_len (%lu) is too big",
 			       journal->j_len);
 	}
 
@@ -3316,7 +3315,8 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 	if (!cn) {
 		cn = get_cnode(p_s_sb);
 		if (!cn) {
-			reiserfs_panic(p_s_sb, "get_cnode failed!\n");
+			reiserfs_panic(p_s_sb, "journal-4",
+				       "get_cnode failed!");
 		}
 
 		if (th->t_blocks_logged == th->t_blocks_allocated) {
@@ -3584,8 +3584,8 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 	BUG_ON(!th->t_trans_id);
 
 	if (th->t_trans_id != journal->j_trans_id) {
-		reiserfs_panic(th->t_super,
-			       "journal-1577: handle trans id %ld != current trans id %ld\n",
+		reiserfs_panic(th->t_super, "journal-1577",
+			       "handle trans id %ld != current trans id %ld",
 			       th->t_trans_id, journal->j_trans_id);
 	}
 
@@ -3664,8 +3664,8 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 	}
 
 	if (journal->j_start > SB_ONDISK_JOURNAL_SIZE(p_s_sb)) {
-		reiserfs_panic(p_s_sb,
-			       "journal-003: journal_end: j_start (%ld) is too high\n",
+		reiserfs_panic(p_s_sb, "journal-003",
+			       "j_start (%ld) is too high",
 			       journal->j_start);
 	}
 	return 1;
@@ -3710,8 +3710,8 @@ int journal_mark_freed(struct reiserfs_transaction_handle *th,
 		/* set the bit for this block in the journal bitmap for this transaction */
 		jb = journal->j_current_jl->j_list_bitmap;
 		if (!jb) {
-			reiserfs_panic(p_s_sb,
-				       "journal-1702: journal_mark_freed, journal_list_bitmap is NULL\n");
+			reiserfs_panic(p_s_sb, "journal-1702",
+				       "journal_list_bitmap is NULL");
 		}
 		set_bit_in_list_bitmap(p_s_sb, blocknr, jb);
 
@@ -4066,8 +4066,8 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 		if (buffer_journaled(cn->bh)) {
 			jl_cn = get_cnode(p_s_sb);
 			if (!jl_cn) {
-				reiserfs_panic(p_s_sb,
-					       "journal-1676, get_cnode returned NULL\n");
+				reiserfs_panic(p_s_sb, "journal-1676",
+					       "get_cnode returned NULL");
 			}
 			if (i == 0) {
 				jl->j_realblock = jl_cn;
@@ -4083,8 +4083,9 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 
 			if (is_block_in_log_or_reserved_area
 			    (p_s_sb, cn->bh->b_blocknr)) {
-				reiserfs_panic(p_s_sb,
-					       "journal-2332: Trying to log block %lu, which is a log block\n",
+				reiserfs_panic(p_s_sb, "journal-2332",
+					       "Trying to log block %lu, "
+					       "which is a log block",
 					       cn->bh->b_blocknr);
 			}
 			jl_cn->blocknr = cn->bh->b_blocknr;
@@ -4268,8 +4269,8 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	    get_list_bitmap(p_s_sb, journal->j_current_jl);
 
 	if (!(journal->j_current_jl->j_list_bitmap)) {
-		reiserfs_panic(p_s_sb,
-			       "journal-1996: do_journal_end, could not get a list bitmap\n");
+		reiserfs_panic(p_s_sb, "journal-1996",
+			       "could not get a list bitmap");
 	}
 
 	atomic_set(&(journal->j_jlock), 0);
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index 381339b432e7..67f1d1de213d 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -168,10 +168,11 @@ static int leaf_copy_boundary_item(struct buffer_info *dest_bi,
 			if (bytes_or_entries == ih_item_len(ih)
 			    && is_indirect_le_ih(ih))
 				if (get_ih_free_space(ih))
-					reiserfs_panic(NULL,
-						       "vs-10020: leaf_copy_boundary_item: "
-						       "last unformatted node must be filled entirely (%h)",
-						       ih);
+					reiserfs_panic(sb_from_bi(dest_bi),
+						       "vs-10020",
+						       "last unformatted node "
+						       "must be filled "
+						       "entirely (%h)", ih);
 		}
 #endif
 
@@ -622,9 +623,8 @@ static void leaf_define_dest_src_infos(int shift_mode, struct tree_balance *tb,
 		break;
 
 	default:
-		reiserfs_panic(NULL,
-			       "vs-10250: leaf_define_dest_src_infos: shift type is unknown (%d)",
-			       shift_mode);
+		reiserfs_panic(sb_from_bi(src_bi), "vs-10250",
+			       "shift type is unknown (%d)", shift_mode);
 	}
 	RFALSE(!src_bi->bi_bh || !dest_bi->bi_bh,
 	       "vs-10260: mode==%d, source (%p) or dest (%p) buffer is initialized incorrectly",
@@ -674,9 +674,9 @@ int leaf_shift_left(struct tree_balance *tb, int shift_num, int shift_bytes)
 #ifdef CONFIG_REISERFS_CHECK
 			if (tb->tb_mode == M_PASTE || tb->tb_mode == M_INSERT) {
 				print_cur_tb("vs-10275");
-				reiserfs_panic(tb->tb_sb,
-					       "vs-10275: leaf_shift_left: balance condition corrupted (%c)",
-					       tb->tb_mode);
+				reiserfs_panic(tb->tb_sb, "vs-10275",
+					       "balance condition corrupted "
+					       "(%c)", tb->tb_mode);
 			}
 #endif
 
@@ -889,9 +889,12 @@ void leaf_paste_in_buffer(struct buffer_info *bi, int affected_item_num,
 
 #ifdef CONFIG_REISERFS_CHECK
 	if (zeros_number > paste_size) {
+		struct super_block *sb = NULL;
+		if (bi && bi->tb)
+			sb = bi->tb->tb_sb;
 		print_cur_tb("10177");
-		reiserfs_panic(NULL,
-			       "vs-10177: leaf_paste_in_buffer: ero number == %d, paste_size == %d",
+		reiserfs_panic(sb, "vs-10177",
+			       "zeros_number == %d, paste_size == %d",
 			       zeros_number, paste_size);
 	}
 #endif				/* CONFIG_REISERFS_CHECK */
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index bb41c6e7c79b..ef41cc882bd9 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -145,10 +145,9 @@ int search_by_entry_key(struct super_block *sb, const struct cpu_key *key,
 	if (!is_direntry_le_ih(de->de_ih) ||
 	    COMP_SHORT_KEYS(&(de->de_ih->ih_key), key)) {
 		print_block(de->de_bh, 0, -1, -1);
-		reiserfs_panic(sb,
-			       "vs-7005: search_by_entry_key: found item %h is not directory item or "
-			       "does not belong to the same directory as key %K",
-			       de->de_ih, key);
+		reiserfs_panic(sb, "vs-7005", "found item %h is not directory "
+			       "item or does not belong to the same directory "
+			       "as key %K", de->de_ih, key);
 	}
 #endif				/* CONFIG_REISERFS_CHECK */
 
@@ -1193,15 +1192,14 @@ static int entry_points_to_object(const char *name, int len,
 
 	if (inode) {
 		if (!de_visible(de->de_deh + de->de_entry_num))
-			reiserfs_panic(NULL,
-				       "vs-7042: entry_points_to_object: entry must be visible");
+			reiserfs_panic(inode->i_sb, "vs-7042",
+				       "entry must be visible");
 		return (de->de_objectid == inode->i_ino) ? 1 : 0;
 	}
 
 	/* this must be added hidden entry */
 	if (de_visible(de->de_deh + de->de_entry_num))
-		reiserfs_panic(NULL,
-			       "vs-7043: entry_points_to_object: entry must be visible");
+		reiserfs_panic(NULL, "vs-7043", "entry must be visible");
 
 	return 1;
 }
@@ -1315,8 +1313,8 @@ static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			       new_dentry->d_name.len, old_inode, 0);
 	if (retval == -EEXIST) {
 		if (!new_dentry_inode) {
-			reiserfs_panic(old_dir->i_sb,
-				       "vs-7050: new entry is found, new inode == 0\n");
+			reiserfs_panic(old_dir->i_sb, "vs-7050",
+				       "new entry is found, new inode == 0");
 		}
 	} else if (retval) {
 		int err = journal_end(&th, old_dir->i_sb, jbegin_count);
diff --git a/fs/reiserfs/objectid.c b/fs/reiserfs/objectid.c
index a3a5f43ff443..90e4e52f857b 100644
--- a/fs/reiserfs/objectid.c
+++ b/fs/reiserfs/objectid.c
@@ -18,8 +18,7 @@
 static void check_objectid_map(struct super_block *s, __le32 * map)
 {
 	if (le32_to_cpu(map[0]) != 1)
-		reiserfs_panic(s,
-			       "vs-15010: check_objectid_map: map corrupted: %lx",
+		reiserfs_panic(s, "vs-15010", "map corrupted: %lx",
 			       (long unsigned int)le32_to_cpu(map[0]));
 
 	// FIXME: add something else here
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index de71372f0dfe..1964acb6eb17 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -353,14 +353,21 @@ void reiserfs_debug(struct super_block *s, int level, const char *fmt, ...)
 extern struct tree_balance *cur_tb;
 #endif
 
-void reiserfs_panic(struct super_block *sb, const char *fmt, ...)
+void __reiserfs_panic(struct super_block *sb, const char *id,
+		      const char *function, const char *fmt, ...)
 {
 	do_reiserfs_warning(fmt);
 
+#ifdef CONFIG_REISERFS_CHECK
 	dump_stack();
-
-	panic(KERN_EMERG "REISERFS: panic (device %s): %s\n",
-	       reiserfs_bdevname(sb), error_buf);
+#endif
+	if (sb)
+		panic(KERN_WARNING "REISERFS panic (device %s): %s%s%s: %s\n",
+		      sb->s_id, id ? id : "", id ? " " : "",
+		      function, error_buf);
+	else
+		panic(KERN_WARNING "REISERFS panic: %s%s%s: %s\n",
+		      id ? id : "", id ? " " : "", function, error_buf);
 }
 
 void reiserfs_abort(struct super_block *sb, int errno, const char *fmt, ...)
@@ -681,12 +688,10 @@ static void check_leaf_block_head(struct buffer_head *bh)
 	blkh = B_BLK_HEAD(bh);
 	nr = blkh_nr_item(blkh);
 	if (nr > (bh->b_size - BLKH_SIZE) / IH_SIZE)
-		reiserfs_panic(NULL,
-			       "vs-6010: check_leaf_block_head: invalid item number %z",
+		reiserfs_panic(NULL, "vs-6010", "invalid item number %z",
 			       bh);
 	if (blkh_free_space(blkh) > bh->b_size - BLKH_SIZE - IH_SIZE * nr)
-		reiserfs_panic(NULL,
-			       "vs-6020: check_leaf_block_head: invalid free space %z",
+		reiserfs_panic(NULL, "vs-6020", "invalid free space %z",
 			       bh);
 
 }
@@ -697,21 +702,15 @@ static void check_internal_block_head(struct buffer_head *bh)
 
 	blkh = B_BLK_HEAD(bh);
 	if (!(B_LEVEL(bh) > DISK_LEAF_NODE_LEVEL && B_LEVEL(bh) <= MAX_HEIGHT))
-		reiserfs_panic(NULL,
-			       "vs-6025: check_internal_block_head: invalid level %z",
-			       bh);
+		reiserfs_panic(NULL, "vs-6025", "invalid level %z", bh);
 
 	if (B_NR_ITEMS(bh) > (bh->b_size - BLKH_SIZE) / IH_SIZE)
-		reiserfs_panic(NULL,
-			       "vs-6030: check_internal_block_head: invalid item number %z",
-			       bh);
+		reiserfs_panic(NULL, "vs-6030", "invalid item number %z", bh);
 
 	if (B_FREE_SPACE(bh) !=
 	    bh->b_size - BLKH_SIZE - KEY_SIZE * B_NR_ITEMS(bh) -
 	    DC_SIZE * (B_NR_ITEMS(bh) + 1))
-		reiserfs_panic(NULL,
-			       "vs-6040: check_internal_block_head: invalid free space %z",
-			       bh);
+		reiserfs_panic(NULL, "vs-6040", "invalid free space %z", bh);
 
 }
 
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index f328d27a19d5..2de1e309124b 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -366,9 +366,8 @@ inline void decrement_bcount(struct buffer_head *p_s_bh)
 			put_bh(p_s_bh);
 			return;
 		}
-		reiserfs_panic(NULL,
-			       "PAP-5070: decrement_bcount: trying to free free buffer %b",
-			       p_s_bh);
+		reiserfs_panic(NULL, "PAP-5070",
+			       "trying to free free buffer %b", p_s_bh);
 	}
 }
 
@@ -713,8 +712,8 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 #ifdef CONFIG_REISERFS_CHECK
 		if (cur_tb) {
 			print_cur_tb("5140");
-			reiserfs_panic(p_s_sb,
-				       "PAP-5140: search_by_key: schedule occurred in do_balance!");
+			reiserfs_panic(p_s_sb, "PAP-5140",
+				       "schedule occurred in do_balance!");
 		}
 #endif
 
@@ -1511,8 +1510,8 @@ static void indirect_to_direct_roll_back(struct reiserfs_transaction_handle *th,
 		/* look for the last byte of the tail */
 		if (search_for_position_by_key(inode->i_sb, &tail_key, path) ==
 		    POSITION_NOT_FOUND)
-			reiserfs_panic(inode->i_sb,
-				       "vs-5615: indirect_to_direct_roll_back: found invalid item");
+			reiserfs_panic(inode->i_sb, "vs-5615",
+				       "found invalid item");
 		RFALSE(path->pos_in_item !=
 		       ih_item_len(PATH_PITEM_HEAD(path)) - 1,
 		       "vs-5616: appended bytes found");
@@ -1612,8 +1611,8 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 				print_block(PATH_PLAST_BUFFER(p_s_path), 3,
 					    PATH_LAST_POSITION(p_s_path) - 1,
 					    PATH_LAST_POSITION(p_s_path) + 1);
-				reiserfs_panic(p_s_sb,
-					       "PAP-5580: reiserfs_cut_from_item: item to convert does not exist (%K)",
+				reiserfs_panic(p_s_sb, "PAP-5580", "item to "
+					       "convert does not exist (%K)",
 					       p_s_item_key);
 			}
 			continue;
@@ -1693,22 +1692,20 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		   sure, that we exactly remove last unformatted node pointer
 		   of the item */
 		if (!is_indirect_le_ih(le_ih))
-			reiserfs_panic(p_s_sb,
-				       "vs-5652: reiserfs_cut_from_item: "
+			reiserfs_panic(p_s_sb, "vs-5652",
 				       "item must be indirect %h", le_ih);
 
 		if (c_mode == M_DELETE && ih_item_len(le_ih) != UNFM_P_SIZE)
-			reiserfs_panic(p_s_sb,
-				       "vs-5653: reiserfs_cut_from_item: "
-				       "completing indirect2direct conversion indirect item %h "
-				       "being deleted must be of 4 byte long",
-				       le_ih);
+			reiserfs_panic(p_s_sb, "vs-5653", "completing "
+				       "indirect2direct conversion indirect "
+				       "item %h being deleted must be of "
+				       "4 byte long", le_ih);
 
 		if (c_mode == M_CUT
 		    && s_cut_balance.insert_size[0] != -UNFM_P_SIZE) {
-			reiserfs_panic(p_s_sb,
-				       "vs-5654: reiserfs_cut_from_item: "
-				       "can not complete indirect2direct conversion of %h (CUT, insert_size==%d)",
+			reiserfs_panic(p_s_sb, "vs-5654", "can not complete "
+				       "indirect2direct conversion of %h "
+				       "(CUT, insert_size==%d)",
 				       le_ih, s_cut_balance.insert_size[0]);
 		}
 		/* it would be useful to make sure, that right neighboring
@@ -1923,10 +1920,10 @@ static void check_research_for_paste(struct treepath *path,
 		    || op_bytes_number(found_ih,
 				       get_last_bh(path)->b_size) !=
 		    pos_in_item(path))
-			reiserfs_panic(NULL,
-				       "PAP-5720: check_research_for_paste: "
-				       "found direct item %h or position (%d) does not match to key %K",
-				       found_ih, pos_in_item(path), p_s_key);
+			reiserfs_panic(NULL, "PAP-5720", "found direct item "
+				       "%h or position (%d) does not match "
+				       "to key %K", found_ih,
+				       pos_in_item(path), p_s_key);
 	}
 	if (is_indirect_le_ih(found_ih)) {
 		if (le_ih_k_offset(found_ih) +
@@ -1935,9 +1932,9 @@ static void check_research_for_paste(struct treepath *path,
 		    cpu_key_k_offset(p_s_key)
 		    || I_UNFM_NUM(found_ih) != pos_in_item(path)
 		    || get_ih_free_space(found_ih) != 0)
-			reiserfs_panic(NULL,
-				       "PAP-5730: check_research_for_paste: "
-				       "found indirect item (%h) or position (%d) does not match to key (%K)",
+			reiserfs_panic(NULL, "PAP-5730", "found indirect "
+				       "item (%h) or position (%d) does not "
+				       "match to key (%K)",
 				       found_ih, pos_in_item(path), p_s_key);
 	}
 }
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index 256285dddb20..f8449cb74b53 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -92,8 +92,7 @@ int direct2indirect(struct reiserfs_transaction_handle *th, struct inode *inode,
 		   last item of the file */
 		if (search_for_position_by_key(sb, &end_key, path) ==
 		    POSITION_FOUND)
-			reiserfs_panic(sb,
-				       "PAP-14050: direct2indirect: "
+			reiserfs_panic(sb, "PAP-14050",
 				       "direct item (%K) not found", &end_key);
 		p_le_ih = PATH_PITEM_HEAD(path);
 		RFALSE(!is_direct_le_ih(p_le_ih),
@@ -214,8 +213,7 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 		/* re-search indirect item */
 		if (search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path)
 		    == POSITION_NOT_FOUND)
-			reiserfs_panic(p_s_sb,
-				       "PAP-5520: indirect2direct: "
+			reiserfs_panic(p_s_sb, "PAP-5520",
 				       "item to be converted %K does not exist",
 				       p_s_item_key);
 		copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
@@ -224,8 +222,8 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 		    (ih_item_len(&s_ih) / UNFM_P_SIZE -
 		     1) * p_s_sb->s_blocksize;
 		if (pos != pos1)
-			reiserfs_panic(p_s_sb, "vs-5530: indirect2direct: "
-				       "tail position changed while we were reading it");
+			reiserfs_panic(p_s_sb, "vs-5530", "tail position "
+				       "changed while we were reading it");
 #endif
 	}
 
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index cf5407ee0f32..04bfd61eeaaa 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -86,11 +86,14 @@ void __reiserfs_warning(struct super_block *s, const char *id,
 /* assertions handling */
 
 /** always check a condition and panic if it's false. */
-#define __RASSERT( cond, scond, format, args... )					\
-if( !( cond ) ) 								\
-  reiserfs_panic( NULL, "reiserfs[%i]: assertion " scond " failed at "	\
-		  __FILE__ ":%i:%s: " format "\n",		\
-		  in_interrupt() ? -1 : task_pid_nr(current), __LINE__ , __func__ , ##args )
+#define __RASSERT(cond, scond, format, args...)			\
+do {									\
+	if (!(cond))							\
+		reiserfs_panic(NULL, "assertion failure", "(" #cond ") at " \
+			       __FILE__ ":%i:%s: " format "\n",		\
+			       in_interrupt() ? -1 : task_pid_nr(current), \
+			       __LINE__, __func__ , ##args);		\
+} while (0)
 
 #define RASSERT(cond, format, args...) __RASSERT(cond, #cond, format, ##args)
 
@@ -1448,6 +1451,16 @@ struct buffer_info {
 	int bi_position;
 };
 
+static inline struct super_block *sb_from_tb(struct tree_balance *tb)
+{
+	return tb ? tb->tb_sb : NULL;
+}
+
+static inline struct super_block *sb_from_bi(struct buffer_info *bi)
+{
+	return bi ? sb_from_tb(bi->tb) : NULL;
+}
+
 /* there are 4 types of items: stat data, directory item, indirect, direct.
 +-------------------+------------+--------------+------------+
 |	            |  k_offset  | k_uniqueness | mergeable? |
@@ -1988,8 +2001,11 @@ int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb,
 void unfix_nodes(struct tree_balance *);
 
 /* prints.c */
-void reiserfs_panic(struct super_block *s, const char *fmt, ...)
+void __reiserfs_panic(struct super_block *s, const char *id,
+		      const char *function, const char *fmt, ...)
     __attribute__ ((noreturn));
+#define reiserfs_panic(s, id, fmt, args...) \
+	__reiserfs_panic(s, id, __func__, fmt, ##args)
 void reiserfs_info(struct super_block *s, const char *fmt, ...);
 void reiserfs_debug(struct super_block *s, int level, const char *fmt, ...);
 void print_indirect_item(struct buffer_head *bh, int item_num);
-- 
cgit v1.2.3


From 32e8b1062915d00d07d3b88a95174648e369b6a3 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:26 -0400
Subject: reiserfs: rearrange journal abort

This patch kills off reiserfs_journal_abort as it is never called, and
combines __reiserfs_journal_abort_{soft,hard} into one function called
reiserfs_abort_journal, which performs the same work. It is silent
as opposed to the old version, since the message was always issued
after a regular 'abort' message.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/journal.c       | 23 ++++-------------------
 fs/reiserfs/prints.c        |  2 +-
 include/linux/reiserfs_fs.h |  2 +-
 3 files changed, 6 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 774f3ba37409..db91754cfb83 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -4295,14 +4295,15 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	return journal->j_errno;
 }
 
-static void __reiserfs_journal_abort_hard(struct super_block *sb)
+/* Send the file system read only and refuse new transactions */
+void reiserfs_abort_journal(struct super_block *sb, int errno)
 {
 	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	if (test_bit(J_ABORTED, &journal->j_state))
 		return;
 
-	printk(KERN_CRIT "REISERFS: Aborting journal for filesystem on %s\n",
-	       reiserfs_bdevname(sb));
+	if (!journal->j_errno)
+		journal->j_errno = errno;
 
 	sb->s_flags |= MS_RDONLY;
 	set_bit(J_ABORTED, &journal->j_state);
@@ -4312,19 +4313,3 @@ static void __reiserfs_journal_abort_hard(struct super_block *sb)
 #endif
 }
 
-static void __reiserfs_journal_abort_soft(struct super_block *sb, int errno)
-{
-	struct reiserfs_journal *journal = SB_JOURNAL(sb);
-	if (test_bit(J_ABORTED, &journal->j_state))
-		return;
-
-	if (!journal->j_errno)
-		journal->j_errno = errno;
-
-	__reiserfs_journal_abort_hard(sb);
-}
-
-void reiserfs_journal_abort(struct super_block *sb, int errno)
-{
-	__reiserfs_journal_abort_soft(sb, errno);
-}
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index 1964acb6eb17..84f3f69652e3 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -386,7 +386,7 @@ void reiserfs_abort(struct super_block *sb, int errno, const char *fmt, ...)
 	       error_buf);
 
 	sb->s_flags |= MS_RDONLY;
-	reiserfs_journal_abort(sb, errno);
+	reiserfs_abort_journal(sb, errno);
 }
 
 /* this prints internal nodes (4 keys/items in line) (dc_number,
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 04bfd61eeaaa..d097966bbd91 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1771,7 +1771,7 @@ int journal_begin(struct reiserfs_transaction_handle *,
 		  struct super_block *p_s_sb, unsigned long);
 int journal_join_abort(struct reiserfs_transaction_handle *,
 		       struct super_block *p_s_sb, unsigned long);
-void reiserfs_journal_abort(struct super_block *sb, int errno);
+void reiserfs_abort_journal(struct super_block *sb, int errno);
 void reiserfs_abort(struct super_block *sb, int errno, const char *fmt, ...);
 int reiserfs_allocate_list_bitmaps(struct super_block *s,
 				   struct reiserfs_list_bitmap *, unsigned int);
-- 
cgit v1.2.3


From 1e5e59d431038c53954fe8f0b38bee0f0ad30349 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:27 -0400
Subject: reiserfs: introduce reiserfs_error()

Although reiserfs can currently handle severe errors such as journal failure,
it cannot handle less severe errors like metadata i/o failure. The following
patch adds a reiserfs_error() function akin to the one in ext3.

Subsequent patches will use this new error handler to handle errors more
gracefully in general.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/prints.c        | 25 +++++++++++++++++++++++++
 include/linux/reiserfs_fs.h |  4 ++++
 2 files changed, 29 insertions(+)

(limited to 'include')

diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index 84f3f69652e3..8e826c07cd21 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -370,6 +370,31 @@ void __reiserfs_panic(struct super_block *sb, const char *id,
 		      id ? id : "", id ? " " : "", function, error_buf);
 }
 
+void __reiserfs_error(struct super_block *sb, const char *id,
+		      const char *function, const char *fmt, ...)
+{
+	do_reiserfs_warning(fmt);
+
+	BUG_ON(sb == NULL);
+
+	if (reiserfs_error_panic(sb))
+		__reiserfs_panic(sb, id, function, error_buf);
+
+	if (id && id[0])
+		printk(KERN_CRIT "REISERFS error (device %s): %s %s: %s\n",
+		       sb->s_id, id, function, error_buf);
+	else
+		printk(KERN_CRIT "REISERFS error (device %s): %s: %s\n",
+		       sb->s_id, function, error_buf);
+
+	if (sb->s_flags & MS_RDONLY)
+		return;
+
+	reiserfs_info(sb, "Remounting filesystem read-only\n");
+	sb->s_flags |= MS_RDONLY;
+	reiserfs_abort_journal(sb, -EIO);
+}
+
 void reiserfs_abort(struct super_block *sb, int errno, const char *fmt, ...)
 {
 	do_reiserfs_warning(fmt);
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index d097966bbd91..6c4af98b6767 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -2006,6 +2006,10 @@ void __reiserfs_panic(struct super_block *s, const char *id,
     __attribute__ ((noreturn));
 #define reiserfs_panic(s, id, fmt, args...) \
 	__reiserfs_panic(s, id, __func__, fmt, ##args)
+void __reiserfs_error(struct super_block *s, const char *id,
+		      const char *function, const char *fmt, ...);
+#define reiserfs_error(s, id, fmt, args...) \
+	 __reiserfs_error(s, id, __func__, fmt, ##args)
 void reiserfs_info(struct super_block *s, const char *fmt, ...);
 void reiserfs_debug(struct super_block *s, int level, const char *fmt, ...);
 void print_indirect_item(struct buffer_head *bh, int item_num);
-- 
cgit v1.2.3


From 6dfede696391133eadd7ce90b61c9573ee6e5a90 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:32 -0400
Subject: reiserfs: remove IS_PRIVATE helpers

There are a number of helper functions for marking a reiserfs inode
private that were leftover from reiserfs did its own thing wrt to
private inodes.  S_PRIVATE has been in the kernel for some time, so this
patch removes the helpers and uses IS_PRIVATE instead.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/inode.c            |  5 ++---
 fs/reiserfs/namei.c            |  7 ++++---
 fs/reiserfs/xattr.c            | 14 ++++++--------
 fs/reiserfs/xattr_acl.c        |  6 +++---
 fs/reiserfs/xattr_security.c   |  8 ++++----
 fs/reiserfs/xattr_trusted.c    |  8 ++++----
 include/linux/reiserfs_xattr.h |  8 --------
 7 files changed, 23 insertions(+), 33 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index fab0373ad6e3..cd42a8658086 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1927,9 +1927,8 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 		reiserfs_warning(inode->i_sb, "jdm-13090",
 				 "ACLs aren't enabled in the fs, "
 				 "but vfs thinks they are!");
-	} else if (is_reiserfs_priv_object(dir)) {
-		reiserfs_mark_inode_private(inode);
-	}
+	} else if (IS_PRIVATE(dir))
+		inode->i_flags |= S_PRIVATE;
 
 	reiserfs_update_sd(th, inode);
 	reiserfs_check_path(&path_to_key);
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 3ce3f8b1690d..c8430f1c824f 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -358,9 +358,10 @@ static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
 			return ERR_PTR(-EACCES);
 		}
 
-		/* Propogate the priv_object flag so we know we're in the priv tree */
-		if (is_reiserfs_priv_object(dir))
-			reiserfs_mark_inode_private(inode);
+		/* Propagate the private flag so we know we're
+		 * in the priv tree */
+		if (IS_PRIVATE(dir))
+			inode->i_flags |= S_PRIVATE;
 	}
 	reiserfs_write_unlock(dir->i_sb);
 	if (retval == IO_ERROR) {
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 3e9e82ca3ba2..c5fc207e529c 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -633,14 +633,14 @@ __reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
 	if (S_ISDIR(dentry->d_inode->i_mode))
 		goto out_file;
 
-	if (!is_reiserfs_priv_object(dentry->d_inode)) {
+	if (!IS_PRIVATE(dentry->d_inode)) {
 		reiserfs_error(dir->i_sb, "jdm-20003",
 			       "OID %08x [%.*s/%.*s] doesn't have "
 			       "priv flag set [parent is %sset].",
 			       le32_to_cpu(INODE_PKEY(dentry->d_inode)->
 					   k_objectid), xadir->d_name.len,
 			       xadir->d_name.name, namelen, name,
-			       is_reiserfs_priv_object(xadir->d_inode) ? "" :
+			       IS_PRIVATE(xadir->d_inode) ? "" :
 			       "not ");
 		dput(dentry);
 		return -EIO;
@@ -701,8 +701,7 @@ int reiserfs_delete_xattrs(struct inode *inode)
 	int err = 0;
 
 	/* Skip out, an xattr has no xattrs associated with it */
-	if (is_reiserfs_priv_object(inode) ||
-	    get_inode_sd_version(inode) == STAT_DATA_V1 ||
+	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1 ||
 	    !reiserfs_xattrs(inode->i_sb)) {
 		return 0;
 	}
@@ -786,8 +785,7 @@ int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
 	unsigned int ia_valid = attrs->ia_valid;
 
 	/* Skip out, an xattr has no xattrs associated with it */
-	if (is_reiserfs_priv_object(inode) ||
-	    get_inode_sd_version(inode) == STAT_DATA_V1 ||
+	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1 ||
 	    !reiserfs_xattrs(inode->i_sb)) {
 		return 0;
 	}
@@ -1178,7 +1176,7 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
 
 		if (!err && dentry) {
 			s->s_root->d_op = &xattr_lookup_poison_ops;
-			reiserfs_mark_inode_private(dentry->d_inode);
+			dentry->d_inode->i_flags |= S_PRIVATE;
 			REISERFS_SB(s)->priv_root = dentry;
 		} else if (!(mount_flags & MS_RDONLY)) {	/* xattrs are unavailable */
 			/* If we're read-only it just means that the dir hasn't been
@@ -1239,7 +1237,7 @@ int reiserfs_permission(struct inode *inode, int mask)
 	 * We don't do permission checks on the internal objects.
 	 * Permissions are determined by the "owning" object.
 	 */
-	if (is_reiserfs_priv_object(inode))
+	if (IS_PRIVATE(inode))
 		return 0;
 
 	/*
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index b7e4fa4539de..9128e4d5ba64 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -335,8 +335,8 @@ reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
 	/* Don't apply ACLs to objects in the .reiserfs_priv tree.. This
 	 * would be useless since permissions are ignored, and a pain because
 	 * it introduces locking cycles */
-	if (is_reiserfs_priv_object(dir)) {
-		reiserfs_mark_inode_private(inode);
+	if (IS_PRIVATE(dir)) {
+		inode->i_flags |= S_PRIVATE;
 		goto apply_umask;
 	}
 
@@ -401,7 +401,7 @@ reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
 int reiserfs_cache_default_acl(struct inode *inode)
 {
 	int ret = 0;
-	if (reiserfs_posixacl(inode->i_sb) && !is_reiserfs_priv_object(inode)) {
+	if (reiserfs_posixacl(inode->i_sb) && !IS_PRIVATE(inode)) {
 		struct posix_acl *acl;
 		reiserfs_read_lock_xattr_i(inode);
 		reiserfs_read_lock_xattrs(inode->i_sb);
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c
index 056008db1377..1958b361c35d 100644
--- a/fs/reiserfs/xattr_security.c
+++ b/fs/reiserfs/xattr_security.c
@@ -12,7 +12,7 @@ security_get(struct inode *inode, const char *name, void *buffer, size_t size)
 	if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
 		return -EINVAL;
 
-	if (is_reiserfs_priv_object(inode))
+	if (IS_PRIVATE(inode))
 		return -EPERM;
 
 	return reiserfs_xattr_get(inode, name, buffer, size);
@@ -25,7 +25,7 @@ security_set(struct inode *inode, const char *name, const void *buffer,
 	if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
 		return -EINVAL;
 
-	if (is_reiserfs_priv_object(inode))
+	if (IS_PRIVATE(inode))
 		return -EPERM;
 
 	return reiserfs_xattr_set(inode, name, buffer, size, flags);
@@ -36,7 +36,7 @@ static int security_del(struct inode *inode, const char *name)
 	if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
 		return -EINVAL;
 
-	if (is_reiserfs_priv_object(inode))
+	if (IS_PRIVATE(inode))
 		return -EPERM;
 
 	return 0;
@@ -47,7 +47,7 @@ security_list(struct inode *inode, const char *name, int namelen, char *out)
 {
 	int len = namelen;
 
-	if (is_reiserfs_priv_object(inode))
+	if (IS_PRIVATE(inode))
 		return 0;
 
 	if (out)
diff --git a/fs/reiserfs/xattr_trusted.c b/fs/reiserfs/xattr_trusted.c
index 60abe2bb1f98..076ad388d489 100644
--- a/fs/reiserfs/xattr_trusted.c
+++ b/fs/reiserfs/xattr_trusted.c
@@ -16,7 +16,7 @@ trusted_get(struct inode *inode, const char *name, void *buffer, size_t size)
 	if (!reiserfs_xattrs(inode->i_sb))
 		return -EOPNOTSUPP;
 
-	if (!(capable(CAP_SYS_ADMIN) || is_reiserfs_priv_object(inode)))
+	if (!(capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)))
 		return -EPERM;
 
 	return reiserfs_xattr_get(inode, name, buffer, size);
@@ -32,7 +32,7 @@ trusted_set(struct inode *inode, const char *name, const void *buffer,
 	if (!reiserfs_xattrs(inode->i_sb))
 		return -EOPNOTSUPP;
 
-	if (!(capable(CAP_SYS_ADMIN) || is_reiserfs_priv_object(inode)))
+	if (!(capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)))
 		return -EPERM;
 
 	return reiserfs_xattr_set(inode, name, buffer, size, flags);
@@ -46,7 +46,7 @@ static int trusted_del(struct inode *inode, const char *name)
 	if (!reiserfs_xattrs(inode->i_sb))
 		return -EOPNOTSUPP;
 
-	if (!(capable(CAP_SYS_ADMIN) || is_reiserfs_priv_object(inode)))
+	if (!(capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)))
 		return -EPERM;
 
 	return 0;
@@ -60,7 +60,7 @@ trusted_list(struct inode *inode, const char *name, int namelen, char *out)
 	if (!reiserfs_xattrs(inode->i_sb))
 		return 0;
 
-	if (!(capable(CAP_SYS_ADMIN) || is_reiserfs_priv_object(inode)))
+	if (!(capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)))
 		return 0;
 
 	if (out)
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index af135ae895db..58f32ba7f5a0 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -44,7 +44,6 @@ struct reiserfs_xattr_handler {
 };
 
 #ifdef CONFIG_REISERFS_FS_XATTR
-#define is_reiserfs_priv_object(inode) IS_PRIVATE(inode)
 #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
 ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name,
 			  void *buffer, size_t size);
@@ -104,11 +103,6 @@ static inline void reiserfs_read_unlock_xattr_i(struct inode *inode)
 	up_read(&REISERFS_I(inode)->xattr_sem);
 }
 
-static inline void reiserfs_mark_inode_private(struct inode *inode)
-{
-	inode->i_flags |= S_PRIVATE;
-}
-
 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 {
 	init_rwsem(&REISERFS_I(inode)->xattr_sem);
@@ -116,8 +110,6 @@ static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 
 #else
 
-#define is_reiserfs_priv_object(inode) 0
-#define reiserfs_mark_inode_private(inode) do {;} while(0)
 #define reiserfs_getxattr NULL
 #define reiserfs_setxattr NULL
 #define reiserfs_listxattr NULL
-- 
cgit v1.2.3


From a72bdb1cd244725ff47b3a29662e2cb820d8c60f Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:33 -0400
Subject: reiserfs: Clean up xattrs when REISERFS_FS_XATTR is unset

The current reiserfs xattr implementation will not clean up old xattr
files if files are deleted when REISERFS_FS_XATTR is unset.  This
results in inaccessible lost files, wasting space.

This patch compiles in basic xattr knowledge, such as how to delete them
and change ownership for quota tracking.  If the file system has never
used xattrs, then the operation is quite fast: it returns immediately
when it sees there is no .reiserfs_priv directory.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/Makefile           |   4 +-
 fs/reiserfs/xattr.c            | 801 +++++++++++++++++++++--------------------
 include/linux/reiserfs_fs_sb.h |   2 +-
 include/linux/reiserfs_xattr.h |  29 +-
 4 files changed, 423 insertions(+), 413 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/Makefile b/fs/reiserfs/Makefile
index 0eb7ac080484..7c5ab6330dd6 100644
--- a/fs/reiserfs/Makefile
+++ b/fs/reiserfs/Makefile
@@ -7,10 +7,10 @@ obj-$(CONFIG_REISERFS_FS) += reiserfs.o
 reiserfs-objs := bitmap.o do_balan.o namei.o inode.o file.o dir.o fix_node.o \
 		 super.o prints.o objectid.o lbalance.o ibalance.o stree.o \
 		 hashes.o tail_conversion.o journal.o resize.o \
-		 item_ops.o ioctl.o procfs.o
+		 item_ops.o ioctl.o procfs.o xattr.o
 
 ifeq ($(CONFIG_REISERFS_FS_XATTR),y)
-reiserfs-objs += xattr.o xattr_user.o xattr_trusted.o
+reiserfs-objs += xattr_user.o xattr_trusted.o
 endif
 
 ifeq ($(CONFIG_REISERFS_FS_SECURITY),y)
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index c5fc207e529c..f9bcdd5750f7 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -50,9 +50,6 @@
 #define PRIVROOT_NAME ".reiserfs_priv"
 #define XAROOT_NAME   "xattrs"
 
-static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char
-								*prefix);
-
 /* Returns the dentry referring to the root of the extended attribute
  * directory tree. If it has already been retrieved, it is used. If it
  * hasn't been created and the flags indicate creation is allowed, we
@@ -143,60 +140,6 @@ static struct dentry *open_xa_dir(const struct inode *inode, int flags)
 	return xadir;
 }
 
-/* Returns a dentry corresponding to a specific extended attribute file
- * for the inode. If flags allow, the file is created. Otherwise, a
- * valid or negative dentry, or an error is returned. */
-static struct dentry *get_xa_file_dentry(const struct inode *inode,
-					 const char *name, int flags)
-{
-	struct dentry *xadir, *xafile;
-	int err = 0;
-
-	xadir = open_xa_dir(inode, flags);
-	if (IS_ERR(xadir)) {
-		return ERR_CAST(xadir);
-	} else if (!xadir->d_inode) {
-		dput(xadir);
-		return ERR_PTR(-ENODATA);
-	}
-
-	xafile = lookup_one_len(name, xadir, strlen(name));
-	if (IS_ERR(xafile)) {
-		dput(xadir);
-		return ERR_CAST(xafile);
-	}
-
-	if (xafile->d_inode) {	/* file exists */
-		if (flags & XATTR_CREATE) {
-			err = -EEXIST;
-			dput(xafile);
-			goto out;
-		}
-	} else if (flags & XATTR_REPLACE || flags & FL_READONLY) {
-		goto out;
-	} else {
-		/* inode->i_mutex is down, so nothing else can try to create
-		 * the same xattr */
-		err = xadir->d_inode->i_op->create(xadir->d_inode, xafile,
-						   0700 | S_IFREG, NULL);
-
-		if (err) {
-			dput(xafile);
-			goto out;
-		}
-	}
-
-      out:
-	dput(xadir);
-	if (err)
-		xafile = ERR_PTR(err);
-	else if (!xafile->d_inode) {
-		dput(xafile);
-		xafile = ERR_PTR(-ENODATA);
-	}
-	return xafile;
-}
-
 /*
  * this is very similar to fs/reiserfs/dir.c:reiserfs_readdir, but
  * we need to drop the path before calling the filldir struct.  That
@@ -369,6 +312,251 @@ int xattr_readdir(struct inode *inode, filldir_t filler, void *buf)
 	return res;
 }
 
+static int
+__reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
+{
+	struct dentry *dentry;
+	struct inode *dir = xadir->d_inode;
+	int err = 0;
+
+	dentry = lookup_one_len(name, xadir, namelen);
+	if (IS_ERR(dentry)) {
+		err = PTR_ERR(dentry);
+		goto out;
+	} else if (!dentry->d_inode) {
+		err = -ENODATA;
+		goto out_file;
+	}
+
+	/* Skip directories.. */
+	if (S_ISDIR(dentry->d_inode->i_mode))
+		goto out_file;
+
+	if (!IS_PRIVATE(dentry->d_inode)) {
+		reiserfs_error(dir->i_sb, "jdm-20003",
+			       "OID %08x [%.*s/%.*s] doesn't have "
+			       "priv flag set [parent is %sset].",
+			       le32_to_cpu(INODE_PKEY(dentry->d_inode)->
+					   k_objectid), xadir->d_name.len,
+			       xadir->d_name.name, namelen, name,
+			       IS_PRIVATE(xadir->d_inode) ? "" :
+			       "not ");
+		dput(dentry);
+		return -EIO;
+	}
+
+	err = dir->i_op->unlink(dir, dentry);
+	if (!err)
+		d_delete(dentry);
+
+out_file:
+	dput(dentry);
+
+out:
+	return err;
+}
+
+/* The following are side effects of other operations that aren't explicitly
+ * modifying extended attributes. This includes operations such as permissions
+ * or ownership changes, object deletions, etc. */
+
+static int
+reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
+			      loff_t offset, u64 ino, unsigned int d_type)
+{
+	struct dentry *xadir = (struct dentry *)buf;
+
+	return __reiserfs_xattr_del(xadir, name, namelen);
+
+}
+
+/* This is called w/ inode->i_mutex downed */
+int reiserfs_delete_xattrs(struct inode *inode)
+{
+	struct dentry *dir, *root;
+	int err = 0;
+
+	/* Skip out, an xattr has no xattrs associated with it */
+	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1)
+		return 0;
+
+	reiserfs_read_lock_xattrs(inode->i_sb);
+	dir = open_xa_dir(inode, FL_READONLY);
+	reiserfs_read_unlock_xattrs(inode->i_sb);
+	if (IS_ERR(dir)) {
+		err = PTR_ERR(dir);
+		goto out;
+	} else if (!dir->d_inode) {
+		dput(dir);
+		return 0;
+	}
+
+	lock_kernel();
+	err = xattr_readdir(dir->d_inode, reiserfs_delete_xattrs_filler, dir);
+	if (err) {
+		unlock_kernel();
+		goto out_dir;
+	}
+
+	/* Leftovers besides . and .. -- that's not good. */
+	if (dir->d_inode->i_nlink <= 2) {
+		root = get_xa_root(inode->i_sb, XATTR_REPLACE);
+		reiserfs_write_lock_xattrs(inode->i_sb);
+		err = vfs_rmdir(root->d_inode, dir);
+		reiserfs_write_unlock_xattrs(inode->i_sb);
+		dput(root);
+	} else {
+		reiserfs_warning(inode->i_sb, "jdm-20006",
+				 "Couldn't remove all entries in directory");
+	}
+	unlock_kernel();
+
+out_dir:
+	dput(dir);
+
+out:
+	if (!err)
+		REISERFS_I(inode)->i_flags =
+		    REISERFS_I(inode)->i_flags & ~i_has_xattr_dir;
+	return err;
+}
+
+struct reiserfs_chown_buf {
+	struct inode *inode;
+	struct dentry *xadir;
+	struct iattr *attrs;
+};
+
+/* XXX: If there is a better way to do this, I'd love to hear about it */
+static int
+reiserfs_chown_xattrs_filler(void *buf, const char *name, int namelen,
+			     loff_t offset, u64 ino, unsigned int d_type)
+{
+	struct reiserfs_chown_buf *chown_buf = (struct reiserfs_chown_buf *)buf;
+	struct dentry *xafile, *xadir = chown_buf->xadir;
+	struct iattr *attrs = chown_buf->attrs;
+	int err = 0;
+
+	xafile = lookup_one_len(name, xadir, namelen);
+	if (IS_ERR(xafile))
+		return PTR_ERR(xafile);
+	else if (!xafile->d_inode) {
+		dput(xafile);
+		return -ENODATA;
+	}
+
+	if (!S_ISDIR(xafile->d_inode->i_mode))
+		err = notify_change(xafile, attrs);
+	dput(xafile);
+
+	return err;
+}
+
+int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
+{
+	struct dentry *dir;
+	int err = 0;
+	struct reiserfs_chown_buf buf;
+	unsigned int ia_valid = attrs->ia_valid;
+
+	/* Skip out, an xattr has no xattrs associated with it */
+	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1)
+		return 0;
+
+	reiserfs_read_lock_xattrs(inode->i_sb);
+	dir = open_xa_dir(inode, FL_READONLY);
+	reiserfs_read_unlock_xattrs(inode->i_sb);
+	if (IS_ERR(dir)) {
+		if (PTR_ERR(dir) != -ENODATA)
+			err = PTR_ERR(dir);
+		goto out;
+	} else if (!dir->d_inode) {
+		dput(dir);
+		goto out;
+	}
+
+	lock_kernel();
+
+	attrs->ia_valid &= (ATTR_UID | ATTR_GID | ATTR_CTIME);
+	buf.xadir = dir;
+	buf.attrs = attrs;
+	buf.inode = inode;
+
+	err = xattr_readdir(dir->d_inode, reiserfs_chown_xattrs_filler, &buf);
+	if (err) {
+		unlock_kernel();
+		goto out_dir;
+	}
+
+	err = notify_change(dir, attrs);
+	unlock_kernel();
+
+out_dir:
+	dput(dir);
+
+out:
+	attrs->ia_valid = ia_valid;
+	return err;
+}
+
+#ifdef CONFIG_REISERFS_FS_XATTR
+static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char
+								*prefix);
+
+/* Returns a dentry corresponding to a specific extended attribute file
+ * for the inode. If flags allow, the file is created. Otherwise, a
+ * valid or negative dentry, or an error is returned. */
+static struct dentry *get_xa_file_dentry(const struct inode *inode,
+					 const char *name, int flags)
+{
+	struct dentry *xadir, *xafile;
+	int err = 0;
+
+	xadir = open_xa_dir(inode, flags);
+	if (IS_ERR(xadir)) {
+		return ERR_CAST(xadir);
+	} else if (xadir && !xadir->d_inode) {
+		dput(xadir);
+		return ERR_PTR(-ENODATA);
+	}
+
+	xafile = lookup_one_len(name, xadir, strlen(name));
+	if (IS_ERR(xafile)) {
+		dput(xadir);
+		return ERR_CAST(xafile);
+	}
+
+	if (xafile->d_inode) {	/* file exists */
+		if (flags & XATTR_CREATE) {
+			err = -EEXIST;
+			dput(xafile);
+			goto out;
+		}
+	} else if (flags & XATTR_REPLACE || flags & FL_READONLY) {
+		goto out;
+	} else {
+		/* inode->i_mutex is down, so nothing else can try to create
+		 * the same xattr */
+		err = xadir->d_inode->i_op->create(xadir->d_inode, xafile,
+						   0700 | S_IFREG, NULL);
+
+		if (err) {
+			dput(xafile);
+			goto out;
+		}
+	}
+
+out:
+	dput(xadir);
+	if (err)
+		xafile = ERR_PTR(err);
+	else if (!xafile->d_inode) {
+		dput(xafile);
+		xafile = ERR_PTR(-ENODATA);
+	}
+	return xafile;
+}
+
 /* Internal operations on file data */
 static inline void reiserfs_put_page(struct page *page)
 {
@@ -554,274 +742,85 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 		goto out_dput;
 	}
 
-	while (file_pos < isize) {
-		size_t chunk;
-		char *data;
-		size_t skip = 0;
-		if (isize - file_pos > PAGE_CACHE_SIZE)
-			chunk = PAGE_CACHE_SIZE;
-		else
-			chunk = isize - file_pos;
-
-		page = reiserfs_get_page(dentry->d_inode, file_pos);
-		if (IS_ERR(page)) {
-			err = PTR_ERR(page);
-			goto out_dput;
-		}
-
-		lock_page(page);
-		data = page_address(page);
-		if (file_pos == 0) {
-			struct reiserfs_xattr_header *rxh =
-			    (struct reiserfs_xattr_header *)data;
-			skip = file_pos = sizeof(struct reiserfs_xattr_header);
-			chunk -= skip;
-			/* Magic doesn't match up.. */
-			if (rxh->h_magic != cpu_to_le32(REISERFS_XATTR_MAGIC)) {
-				unlock_page(page);
-				reiserfs_put_page(page);
-				reiserfs_warning(inode->i_sb, "jdm-20001",
-						 "Invalid magic for xattr (%s) "
-						 "associated with %k", name,
-						 INODE_PKEY(inode));
-				err = -EIO;
-				goto out_dput;
-			}
-			hash = le32_to_cpu(rxh->h_hash);
-		}
-		memcpy(buffer + buffer_pos, data + skip, chunk);
-		unlock_page(page);
-		reiserfs_put_page(page);
-		file_pos += chunk;
-		buffer_pos += chunk;
-		skip = 0;
-	}
-	err = isize - sizeof(struct reiserfs_xattr_header);
-
-	if (xattr_hash(buffer, isize - sizeof(struct reiserfs_xattr_header)) !=
-	    hash) {
-		reiserfs_warning(inode->i_sb, "jdm-20002",
-				 "Invalid hash for xattr (%s) associated "
-				 "with %k", name, INODE_PKEY(inode));
-		err = -EIO;
-	}
-
-      out_dput:
-	dput(dentry);
-
-      out:
-	return err;
-}
-
-static int
-__reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
-{
-	struct dentry *dentry;
-	struct inode *dir = xadir->d_inode;
-	int err = 0;
-
-	dentry = lookup_one_len(name, xadir, namelen);
-	if (IS_ERR(dentry)) {
-		err = PTR_ERR(dentry);
-		goto out;
-	} else if (!dentry->d_inode) {
-		err = -ENODATA;
-		goto out_file;
-	}
-
-	/* Skip directories.. */
-	if (S_ISDIR(dentry->d_inode->i_mode))
-		goto out_file;
-
-	if (!IS_PRIVATE(dentry->d_inode)) {
-		reiserfs_error(dir->i_sb, "jdm-20003",
-			       "OID %08x [%.*s/%.*s] doesn't have "
-			       "priv flag set [parent is %sset].",
-			       le32_to_cpu(INODE_PKEY(dentry->d_inode)->
-					   k_objectid), xadir->d_name.len,
-			       xadir->d_name.name, namelen, name,
-			       IS_PRIVATE(xadir->d_inode) ? "" :
-			       "not ");
-		dput(dentry);
-		return -EIO;
-	}
-
-	err = dir->i_op->unlink(dir, dentry);
-	if (!err)
-		d_delete(dentry);
-
-      out_file:
-	dput(dentry);
-
-      out:
-	return err;
-}
-
-int reiserfs_xattr_del(struct inode *inode, const char *name)
-{
-	struct dentry *dir;
-	int err;
-
-	dir = open_xa_dir(inode, FL_READONLY);
-	if (IS_ERR(dir)) {
-		err = PTR_ERR(dir);
-		goto out;
-	}
-
-	err = __reiserfs_xattr_del(dir, name, strlen(name));
-	dput(dir);
-
-	if (!err) {
-		inode->i_ctime = CURRENT_TIME_SEC;
-		mark_inode_dirty(inode);
-	}
-
-      out:
-	return err;
-}
-
-/* The following are side effects of other operations that aren't explicitly
- * modifying extended attributes. This includes operations such as permissions
- * or ownership changes, object deletions, etc. */
-
-static int
-reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
-			      loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct dentry *xadir = (struct dentry *)buf;
-
-	return __reiserfs_xattr_del(xadir, name, namelen);
-
-}
-
-/* This is called w/ inode->i_mutex downed */
-int reiserfs_delete_xattrs(struct inode *inode)
-{
-	struct dentry *dir, *root;
-	int err = 0;
-
-	/* Skip out, an xattr has no xattrs associated with it */
-	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1 ||
-	    !reiserfs_xattrs(inode->i_sb)) {
-		return 0;
-	}
-	reiserfs_read_lock_xattrs(inode->i_sb);
-	dir = open_xa_dir(inode, FL_READONLY);
-	reiserfs_read_unlock_xattrs(inode->i_sb);
-	if (IS_ERR(dir)) {
-		err = PTR_ERR(dir);
-		goto out;
-	} else if (!dir->d_inode) {
-		dput(dir);
-		return 0;
-	}
-
-	lock_kernel();
-	err = xattr_readdir(dir->d_inode, reiserfs_delete_xattrs_filler, dir);
-	if (err) {
-		unlock_kernel();
-		goto out_dir;
-	}
-
-	/* Leftovers besides . and .. -- that's not good. */
-	if (dir->d_inode->i_nlink <= 2) {
-		root = get_xa_root(inode->i_sb, XATTR_REPLACE);
-		reiserfs_write_lock_xattrs(inode->i_sb);
-		err = vfs_rmdir(root->d_inode, dir);
-		reiserfs_write_unlock_xattrs(inode->i_sb);
-		dput(root);
-	} else {
-		reiserfs_warning(inode->i_sb, "jdm-20006",
-				 "Couldn't remove all entries in directory");
-	}
-	unlock_kernel();
-
-      out_dir:
-	dput(dir);
-
-      out:
-	if (!err)
-		REISERFS_I(inode)->i_flags =
-		    REISERFS_I(inode)->i_flags & ~i_has_xattr_dir;
-	return err;
-}
+	while (file_pos < isize) {
+		size_t chunk;
+		char *data;
+		size_t skip = 0;
+		if (isize - file_pos > PAGE_CACHE_SIZE)
+			chunk = PAGE_CACHE_SIZE;
+		else
+			chunk = isize - file_pos;
 
-struct reiserfs_chown_buf {
-	struct inode *inode;
-	struct dentry *xadir;
-	struct iattr *attrs;
-};
+		page = reiserfs_get_page(dentry->d_inode, file_pos);
+		if (IS_ERR(page)) {
+			err = PTR_ERR(page);
+			goto out_dput;
+		}
 
-/* XXX: If there is a better way to do this, I'd love to hear about it */
-static int
-reiserfs_chown_xattrs_filler(void *buf, const char *name, int namelen,
-			     loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct reiserfs_chown_buf *chown_buf = (struct reiserfs_chown_buf *)buf;
-	struct dentry *xafile, *xadir = chown_buf->xadir;
-	struct iattr *attrs = chown_buf->attrs;
-	int err = 0;
+		lock_page(page);
+		data = page_address(page);
+		if (file_pos == 0) {
+			struct reiserfs_xattr_header *rxh =
+			    (struct reiserfs_xattr_header *)data;
+			skip = file_pos = sizeof(struct reiserfs_xattr_header);
+			chunk -= skip;
+			/* Magic doesn't match up.. */
+			if (rxh->h_magic != cpu_to_le32(REISERFS_XATTR_MAGIC)) {
+				unlock_page(page);
+				reiserfs_put_page(page);
+				reiserfs_warning(inode->i_sb, "jdm-20001",
+						 "Invalid magic for xattr (%s) "
+						 "associated with %k", name,
+						 INODE_PKEY(inode));
+				err = -EIO;
+				goto out_dput;
+			}
+			hash = le32_to_cpu(rxh->h_hash);
+		}
+		memcpy(buffer + buffer_pos, data + skip, chunk);
+		unlock_page(page);
+		reiserfs_put_page(page);
+		file_pos += chunk;
+		buffer_pos += chunk;
+		skip = 0;
+	}
+	err = isize - sizeof(struct reiserfs_xattr_header);
 
-	xafile = lookup_one_len(name, xadir, namelen);
-	if (IS_ERR(xafile))
-		return PTR_ERR(xafile);
-	else if (!xafile->d_inode) {
-		dput(xafile);
-		return -ENODATA;
+	if (xattr_hash(buffer, isize - sizeof(struct reiserfs_xattr_header)) !=
+	    hash) {
+		reiserfs_warning(inode->i_sb, "jdm-20002",
+				 "Invalid hash for xattr (%s) associated "
+				 "with %k", name, INODE_PKEY(inode));
+		err = -EIO;
 	}
 
-	if (!S_ISDIR(xafile->d_inode->i_mode))
-		err = notify_change(xafile, attrs);
-	dput(xafile);
+out_dput:
+	dput(dentry);
 
+out:
 	return err;
 }
 
-int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
+int reiserfs_xattr_del(struct inode *inode, const char *name)
 {
 	struct dentry *dir;
-	int err = 0;
-	struct reiserfs_chown_buf buf;
-	unsigned int ia_valid = attrs->ia_valid;
+	int err;
 
-	/* Skip out, an xattr has no xattrs associated with it */
-	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1 ||
-	    !reiserfs_xattrs(inode->i_sb)) {
-		return 0;
-	}
-	reiserfs_read_lock_xattrs(inode->i_sb);
 	dir = open_xa_dir(inode, FL_READONLY);
-	reiserfs_read_unlock_xattrs(inode->i_sb);
 	if (IS_ERR(dir)) {
-		if (PTR_ERR(dir) != -ENODATA)
-			err = PTR_ERR(dir);
-		goto out;
-	} else if (!dir->d_inode) {
-		dput(dir);
+		err = PTR_ERR(dir);
 		goto out;
 	}
 
-	lock_kernel();
-
-	attrs->ia_valid &= (ATTR_UID | ATTR_GID | ATTR_CTIME);
-	buf.xadir = dir;
-	buf.attrs = attrs;
-	buf.inode = inode;
+	err = __reiserfs_xattr_del(dir, name, strlen(name));
+	dput(dir);
 
-	err = xattr_readdir(dir->d_inode, reiserfs_chown_xattrs_filler, &buf);
-	if (err) {
-		unlock_kernel();
-		goto out_dir;
+	if (!err) {
+		inode->i_ctime = CURRENT_TIME_SEC;
+		mark_inode_dirty(inode);
 	}
 
-	err = notify_change(dir, attrs);
-	unlock_kernel();
-
-      out_dir:
-	dput(dir);
-
       out:
-	attrs->ia_valid = ia_valid;
 	return err;
 }
 
@@ -1101,6 +1100,94 @@ void reiserfs_xattr_unregister_handlers(void)
 	write_unlock(&handler_lock);
 }
 
+static int reiserfs_check_acl(struct inode *inode, int mask)
+{
+	struct posix_acl *acl;
+	int error = -EAGAIN; /* do regular unix permission checks by default */
+
+	reiserfs_read_lock_xattr_i(inode);
+	reiserfs_read_lock_xattrs(inode->i_sb);
+
+	acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
+
+	reiserfs_read_unlock_xattrs(inode->i_sb);
+	reiserfs_read_unlock_xattr_i(inode);
+
+	if (acl) {
+		if (!IS_ERR(acl)) {
+			error = posix_acl_permission(inode, acl, mask);
+			posix_acl_release(acl);
+		} else if (PTR_ERR(acl) != -ENODATA)
+			error = PTR_ERR(acl);
+	}
+
+	return error;
+}
+
+int reiserfs_permission(struct inode *inode, int mask)
+{
+	/*
+	 * We don't do permission checks on the internal objects.
+	 * Permissions are determined by the "owning" object.
+	 */
+	if (IS_PRIVATE(inode))
+		return 0;
+	/*
+	 * Stat data v1 doesn't support ACLs.
+	 */
+	if (get_inode_sd_version(inode) == STAT_DATA_V1)
+		return generic_permission(inode, mask, NULL);
+	else
+		return generic_permission(inode, mask, reiserfs_check_acl);
+}
+
+static int create_privroot(struct dentry *dentry)
+{
+	int err;
+	struct inode *inode = dentry->d_parent->d_inode;
+	mutex_lock_nested(&inode->i_mutex, I_MUTEX_XATTR);
+	err = inode->i_op->mkdir(inode, dentry, 0700);
+	mutex_unlock(&inode->i_mutex);
+	if (err) {
+		dput(dentry);
+		dentry = NULL;
+	}
+
+	if (dentry && dentry->d_inode)
+		reiserfs_info(dentry->d_sb, "Created %s - reserved for xattr "
+			      "storage.\n", PRIVROOT_NAME);
+
+	return err;
+}
+
+static int xattr_mount_check(struct super_block *s)
+{
+	/* We need generation numbers to ensure that the oid mapping is correct
+	 * v3.5 filesystems don't have them. */
+	if (!old_format_only(s)) {
+		set_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
+	} else if (reiserfs_xattrs_optional(s)) {
+		/* Old format filesystem, but optional xattrs have been enabled
+		 * at mount time. Error out. */
+		reiserfs_warning(s, "jdm-20005",
+				 "xattrs/ACLs not supported on pre v3.6 "
+				 "format filesystem. Failing mount.");
+		return -EOPNOTSUPP;
+	} else {
+		/* Old format filesystem, but no optional xattrs have
+		 * been enabled. This means we silently disable xattrs
+		 * on the filesystem. */
+		clear_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
+	}
+
+	return 0;
+}
+
+#else
+int __init reiserfs_xattr_register_handlers(void) { return 0; }
+void reiserfs_xattr_unregister_handlers(void) {}
+#endif
+
 /* This will catch lookups from the fs root to .reiserfs_priv */
 static int
 xattr_lookup_poison(struct dentry *dentry, struct qstr *q1, struct qstr *name)
@@ -1127,47 +1214,23 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
 {
 	int err = 0;
 
-	/* We need generation numbers to ensure that the oid mapping is correct
-	 * v3.5 filesystems don't have them. */
-	if (!old_format_only(s)) {
-		set_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
-	} else if (reiserfs_xattrs_optional(s)) {
-		/* Old format filesystem, but optional xattrs have been enabled
-		 * at mount time. Error out. */
-		reiserfs_warning(s, "jdm-20005",
-				 "xattrs/ACLs not supported on pre v3.6 "
-				 "format filesystem. Failing mount.");
-		err = -EOPNOTSUPP;
+#ifdef CONFIG_REISERFS_FS_XATTR
+	err = xattr_mount_check(s);
+	if (err)
 		goto error;
-	} else {
-		/* Old format filesystem, but no optional xattrs have been enabled. This
-		 * means we silently disable xattrs on the filesystem. */
-		clear_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
-	}
+#endif
 
 	/* If we don't have the privroot located yet - go find it */
-	if (reiserfs_xattrs(s) && !REISERFS_SB(s)->priv_root) {
+	if (!REISERFS_SB(s)->priv_root) {
 		struct dentry *dentry;
 		dentry = lookup_one_len(PRIVROOT_NAME, s->s_root,
 					strlen(PRIVROOT_NAME));
 		if (!IS_ERR(dentry)) {
-			if (!(mount_flags & MS_RDONLY) && !dentry->d_inode) {
-				struct inode *inode = dentry->d_parent->d_inode;
-				mutex_lock_nested(&inode->i_mutex,
-						  I_MUTEX_XATTR);
-				err = inode->i_op->mkdir(inode, dentry, 0700);
-				mutex_unlock(&inode->i_mutex);
-				if (err) {
-					dput(dentry);
-					dentry = NULL;
-				}
-
-				if (dentry && dentry->d_inode)
-					reiserfs_info(s, "Created %s - "
-						      "reserved for xattr "
-						      "storage.\n",
-						      PRIVROOT_NAME);
-			} else if (!dentry->d_inode) {
+#ifdef CONFIG_REISERFS_FS_XATTR
+			if (!(mount_flags & MS_RDONLY) && !dentry->d_inode)
+				err = create_privroot(dentry);
+#endif
+			if (!dentry->d_inode) {
 				dput(dentry);
 				dentry = NULL;
 			}
@@ -1178,73 +1241,37 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
 			s->s_root->d_op = &xattr_lookup_poison_ops;
 			dentry->d_inode->i_flags |= S_PRIVATE;
 			REISERFS_SB(s)->priv_root = dentry;
-		} else if (!(mount_flags & MS_RDONLY)) {	/* xattrs are unavailable */
-			/* If we're read-only it just means that the dir hasn't been
-			 * created. Not an error -- just no xattrs on the fs. We'll
-			 * check again if we go read-write */
+#ifdef CONFIG_REISERFS_FS_XATTR
+		/* xattrs are unavailable */
+		} else if (!(mount_flags & MS_RDONLY)) {
+			/* If we're read-only it just means that the dir
+			 * hasn't been created. Not an error -- just no
+			 * xattrs on the fs. We'll check again if we
+			 * go read-write */
 			reiserfs_warning(s, "jdm-20006",
 					 "xattrs/ACLs enabled and couldn't "
 					 "find/create .reiserfs_priv. "
 					 "Failing mount.");
 			err = -EOPNOTSUPP;
+#endif
 		}
 	}
 
-      error:
-	/* This is only nonzero if there was an error initializing the xattr
-	 * directory or if there is a condition where we don't support them. */
+#ifdef CONFIG_REISERFS_FS_XATTR
+error:
 	if (err) {
 		clear_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
 		clear_bit(REISERFS_XATTRS_USER, &(REISERFS_SB(s)->s_mount_opt));
 		clear_bit(REISERFS_POSIXACL, &(REISERFS_SB(s)->s_mount_opt));
 	}
+#endif
 
 	/* The super_block MS_POSIXACL must mirror the (no)acl mount option. */
 	s->s_flags = s->s_flags & ~MS_POSIXACL;
+#ifdef CONFIG_REISERFS_FS_POSIX_ACL
 	if (reiserfs_posixacl(s))
 		s->s_flags |= MS_POSIXACL;
+#endif
 
 	return err;
 }
-
-static int reiserfs_check_acl(struct inode *inode, int mask)
-{
-	struct posix_acl *acl;
-	int error = -EAGAIN; /* do regular unix permission checks by default */
-
-	reiserfs_read_lock_xattr_i(inode);
-	reiserfs_read_lock_xattrs(inode->i_sb);
-
-	acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
-
-	reiserfs_read_unlock_xattrs(inode->i_sb);
-	reiserfs_read_unlock_xattr_i(inode);
-
-	if (acl) {
-		if (!IS_ERR(acl)) {
-			error = posix_acl_permission(inode, acl, mask);
-			posix_acl_release(acl);
-		} else if (PTR_ERR(acl) != -ENODATA)
-			error = PTR_ERR(acl);
-	}
-
-	return error;
-}
-
-int reiserfs_permission(struct inode *inode, int mask)
-{
-	/*
-	 * We don't do permission checks on the internal objects.
-	 * Permissions are determined by the "owning" object.
-	 */
-	if (IS_PRIVATE(inode))
-		return 0;
-
-	/*
-	 * Stat data v1 doesn't support ACLs.
-	 */
-	if (get_inode_sd_version(inode) == STAT_DATA_V1)
-		return generic_permission(inode, mask, NULL);
-	else
-		return generic_permission(inode, mask, reiserfs_check_acl);
-}
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 12fc2a0d13be..cbb8868e844e 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -402,8 +402,8 @@ struct reiserfs_sb_info {
 	int reserved_blocks;	/* amount of blocks reserved for further allocations */
 	spinlock_t bitmap_lock;	/* this lock on now only used to protect reserved_blocks variable */
 	struct dentry *priv_root;	/* root of /.reiserfs_priv */
-#ifdef CONFIG_REISERFS_FS_XATTR
 	struct dentry *xattr_root;	/* root of /.reiserfs_priv/.xa */
+#ifdef CONFIG_REISERFS_FS_XATTR
 	struct rw_semaphore xattr_dir_sem;
 #endif
 	int j_errno;
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 58f32ba7f5a0..13cdd5e1cb60 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -43,6 +43,12 @@ struct reiserfs_xattr_handler {
 	struct list_head handlers;
 };
 
+int reiserfs_xattr_register_handlers(void) __init;
+void reiserfs_xattr_unregister_handlers(void);
+int reiserfs_xattr_init(struct super_block *sb, int mount_flags);
+int reiserfs_delete_xattrs(struct inode *inode);
+int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs);
+
 #ifdef CONFIG_REISERFS_FS_XATTR
 #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
 ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name,
@@ -51,9 +57,6 @@ int reiserfs_setxattr(struct dentry *dentry, const char *name,
 		      const void *value, size_t size, int flags);
 ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
 int reiserfs_removexattr(struct dentry *dentry, const char *name);
-int reiserfs_delete_xattrs(struct inode *inode);
-int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs);
-int reiserfs_xattr_init(struct super_block *sb, int mount_flags);
 int reiserfs_permission(struct inode *inode, int mask);
 
 int reiserfs_xattr_del(struct inode *, const char *);
@@ -64,9 +67,6 @@ extern struct reiserfs_xattr_handler user_handler;
 extern struct reiserfs_xattr_handler trusted_handler;
 extern struct reiserfs_xattr_handler security_handler;
 
-int reiserfs_xattr_register_handlers(void) __init;
-void reiserfs_xattr_unregister_handlers(void);
-
 static inline void reiserfs_write_lock_xattrs(struct super_block *sb)
 {
 	down_write(&REISERFS_XATTR_DIR_SEM(sb));
@@ -121,23 +121,6 @@ static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 
 #define reiserfs_permission NULL
 
-#define reiserfs_xattr_register_handlers() 0
-#define reiserfs_xattr_unregister_handlers()
-
-static inline int reiserfs_delete_xattrs(struct inode *inode)
-{
-	return 0;
-};
-static inline int reiserfs_chown_xattrs(struct inode *inode,
-					struct iattr *attrs)
-{
-	return 0;
-};
-static inline int reiserfs_xattr_init(struct super_block *sb, int mount_flags)
-{
-	sb->s_flags = (sb->s_flags & ~MS_POSIXACL);	/* to be sure */
-	return 0;
-};
 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 {
 }
-- 
cgit v1.2.3


From d984561b326cd0fe0d1183d11b9b4fa1d011d21d Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:35 -0400
Subject: reiserfs: eliminate per-super xattr lock

With the switch to using inode->i_mutex locking during lookups/creation
in the xattr root, the per-super xattr lock is no longer needed.

This patch removes it.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/inode.c            | 14 +-------
 fs/reiserfs/namei.c            | 29 -----------------
 fs/reiserfs/super.c            |  4 ---
 fs/reiserfs/xattr.c            | 70 +++++++++++++++++++--------------------
 fs/reiserfs/xattr_acl.c        | 74 +++++++++++++++++++-----------------------
 include/linux/reiserfs_fs.h    |  3 --
 include/linux/reiserfs_fs_sb.h |  3 --
 include/linux/reiserfs_xattr.h | 28 +++-------------
 8 files changed, 74 insertions(+), 151 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index cd42a8658086..50a73e7afdc8 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1957,19 +1957,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 	inode->i_nlink = 0;
 	th->t_trans_id = 0;	/* so the caller can't use this handle later */
 	unlock_new_inode(inode); /* OK to do even if we hadn't locked it */
-
-	/* If we were inheriting an ACL, we need to release the lock so that
-	 * iput doesn't deadlock in reiserfs_delete_xattrs. The locking
-	 * code really needs to be reworked, but this will take care of it
-	 * for now. -jeffm */
-#ifdef CONFIG_REISERFS_FS_POSIX_ACL
-	if (REISERFS_I(dir)->i_acl_default && !IS_ERR(REISERFS_I(dir)->i_acl_default)) {
-		reiserfs_write_unlock_xattrs(dir->i_sb);
-		iput(inode);
-		reiserfs_write_lock_xattrs(dir->i_sb);
-	} else
-#endif
-		iput(inode);
+	iput(inode);
 	return err;
 }
 
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index c8430f1c824f..ddf1bcd41c87 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -609,9 +609,6 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
 
 	reiserfs_write_lock(dir->i_sb);
 
-	if (locked)
-		reiserfs_write_lock_xattrs(dir->i_sb);
-
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
 	if (retval) {
 		drop_new_inode(inode);
@@ -624,11 +621,6 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
 	if (retval)
 		goto out_failed;
 
-	if (locked) {
-		reiserfs_write_unlock_xattrs(dir->i_sb);
-		locked = 0;
-	}
-
 	inode->i_op = &reiserfs_file_inode_operations;
 	inode->i_fop = &reiserfs_file_operations;
 	inode->i_mapping->a_ops = &reiserfs_address_space_operations;
@@ -655,8 +647,6 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
 	retval = journal_end(&th, dir->i_sb, jbegin_count);
 
       out_failed:
-	if (locked)
-		reiserfs_write_unlock_xattrs(dir->i_sb);
 	reiserfs_write_unlock(dir->i_sb);
 	return retval;
 }
@@ -686,9 +676,6 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 
 	reiserfs_write_lock(dir->i_sb);
 
-	if (locked)
-		reiserfs_write_lock_xattrs(dir->i_sb);
-
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
 	if (retval) {
 		drop_new_inode(inode);
@@ -702,11 +689,6 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 		goto out_failed;
 	}
 
-	if (locked) {
-		reiserfs_write_unlock_xattrs(dir->i_sb);
-		locked = 0;
-	}
-
 	inode->i_op = &reiserfs_special_inode_operations;
 	init_special_inode(inode, inode->i_mode, rdev);
 
@@ -736,8 +718,6 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 	retval = journal_end(&th, dir->i_sb, jbegin_count);
 
       out_failed:
-	if (locked)
-		reiserfs_write_unlock_xattrs(dir->i_sb);
 	reiserfs_write_unlock(dir->i_sb);
 	return retval;
 }
@@ -767,8 +747,6 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	locked = reiserfs_cache_default_acl(dir);
 
 	reiserfs_write_lock(dir->i_sb);
-	if (locked)
-		reiserfs_write_lock_xattrs(dir->i_sb);
 
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
 	if (retval) {
@@ -790,11 +768,6 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 		goto out_failed;
 	}
 
-	if (locked) {
-		reiserfs_write_unlock_xattrs(dir->i_sb);
-		locked = 0;
-	}
-
 	reiserfs_update_inode_transaction(inode);
 	reiserfs_update_inode_transaction(dir);
 
@@ -824,8 +797,6 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	unlock_new_inode(inode);
 	retval = journal_end(&th, dir->i_sb, jbegin_count);
       out_failed:
-	if (locked)
-		reiserfs_write_unlock_xattrs(dir->i_sb);
 	reiserfs_write_unlock(dir->i_sb);
 	return retval;
 }
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index fc7cb4661ee0..6d10f81b4fc1 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1646,10 +1646,6 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	REISERFS_SB(s)->s_alloc_options.preallocmin = 0;
 	/* Preallocate by 16 blocks (17-1) at once */
 	REISERFS_SB(s)->s_alloc_options.preallocsize = 17;
-#ifdef CONFIG_REISERFS_FS_XATTR
-	/* Initialize the rwsem for xattr dir */
-	init_rwsem(&REISERFS_SB(s)->xattr_dir_sem);
-#endif
 	/* setup default block allocator options */
 	reiserfs_init_alloc_options(s);
 
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 57920a4df7a4..62c98829c545 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -27,6 +27,12 @@
  * these are special cases for filesystem ACLs, they are interpreted by the
  * kernel, in addition, they are negatively and positively cached and attached
  * to the inode so that unnecessary lookups are avoided.
+ *
+ * Locking works like so:
+ * The xattr root (/.reiserfs_priv/xattrs) is protected by its i_mutex.
+ * The xattr dir (/.reiserfs_priv/xattrs/<oid>.<gen>) is protected by
+ * inode->xattr_sem.
+ * The xattrs themselves are likewise protected by the xattr_sem.
  */
 
 #include <linux/reiserfs_fs.h>
@@ -392,16 +398,17 @@ reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
 /* This is called w/ inode->i_mutex downed */
 int reiserfs_delete_xattrs(struct inode *inode)
 {
-	struct dentry *dir, *root;
 	int err = 0;
+	struct dentry *dir, *root;
+	struct reiserfs_transaction_handle th;
+	int blocks = JOURNAL_PER_BALANCE_CNT * 2 + 2 +
+		     4 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb);
 
 	/* Skip out, an xattr has no xattrs associated with it */
 	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1)
 		return 0;
 
-	reiserfs_read_lock_xattrs(inode->i_sb);
 	dir = open_xa_dir(inode, XATTR_REPLACE);
-	reiserfs_read_unlock_xattrs(inode->i_sb);
 	if (IS_ERR(dir)) {
 		err = PTR_ERR(dir);
 		goto out;
@@ -416,18 +423,26 @@ int reiserfs_delete_xattrs(struct inode *inode)
 	if (err)
 		goto out_dir;
 
-	/* Leftovers besides . and .. -- that's not good. */
-	if (dir->d_inode->i_nlink <= 2) {
-		root = open_xa_root(inode->i_sb, XATTR_REPLACE);
-		reiserfs_write_lock_xattrs(inode->i_sb);
+	/* We start a transaction here to avoid a ABBA situation
+	 * between the xattr root's i_mutex and the journal lock.
+	 * Inode creation will inherit an ACL, which requires a
+	 * lookup. The lookup locks the xattr root i_mutex with a
+	 * transaction open.  Inode deletion takes teh xattr root
+	 * i_mutex to delete the directory and then starts a
+	 * transaction inside it. Boom. This doesn't incur much
+	 * additional overhead since the reiserfs_rmdir transaction
+	 * will just nest inside the outer transaction. */
+	err = journal_begin(&th, inode->i_sb, blocks);
+	if (!err) {
+		int jerror;
+		root = dget(dir->d_parent);
 		mutex_lock_nested(&root->d_inode->i_mutex, I_MUTEX_XATTR);
 		err = xattr_rmdir(root->d_inode, dir);
+		jerror = journal_end(&th, inode->i_sb, blocks);
 		mutex_unlock(&root->d_inode->i_mutex);
-		reiserfs_write_unlock_xattrs(inode->i_sb);
 		dput(root);
-	} else {
-		reiserfs_warning(inode->i_sb, "jdm-20006",
-				 "Couldn't remove all entries in directory");
+
+		err = jerror ?: err;
 	}
 
 out_dir:
@@ -437,6 +452,9 @@ out:
 	if (!err)
 		REISERFS_I(inode)->i_flags =
 		    REISERFS_I(inode)->i_flags & ~i_has_xattr_dir;
+	else
+		reiserfs_warning(inode->i_sb, "jdm-20004",
+				 "Couldn't remove all xattrs (%d)\n", err);
 	return err;
 }
 
@@ -485,9 +503,7 @@ int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
 	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1)
 		return 0;
 
-	reiserfs_read_lock_xattrs(inode->i_sb);
 	dir = open_xa_dir(inode, XATTR_REPLACE);
-	reiserfs_read_unlock_xattrs(inode->i_sb);
 	if (IS_ERR(dir)) {
 		if (PTR_ERR(dir) != -ENODATA)
 			err = PTR_ERR(dir);
@@ -731,6 +747,11 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 		goto out;
 	}
 
+	/* protect against concurrent access. xattrs are backed by
+	 * regular files, but they're not regular files. The updates
+	 * must be atomic from the perspective of the user. */
+	mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);
+
 	isize = i_size_read(dentry->d_inode);
 	REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
 
@@ -798,6 +819,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 	}
 
 out_dput:
+	mutex_unlock(&dentry->d_inode->i_mutex);
 	dput(dentry);
 
 out:
@@ -834,7 +856,6 @@ int reiserfs_xattr_del(struct inode *inode, const char *name)
 static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char *);
 /*
  * Inode operation getxattr()
- * Preliminary locking: we down dentry->d_inode->i_mutex
  */
 ssize_t
 reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
@@ -848,9 +869,7 @@ reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
 		return -EOPNOTSUPP;
 
 	reiserfs_read_lock_xattr_i(dentry->d_inode);
-	reiserfs_read_lock_xattrs(dentry->d_sb);
 	err = xah->get(dentry->d_inode, name, buffer, size);
-	reiserfs_read_unlock_xattrs(dentry->d_sb);
 	reiserfs_read_unlock_xattr_i(dentry->d_inode);
 	return err;
 }
@@ -866,23 +885,13 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 {
 	struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix(name);
 	int err;
-	int lock;
 
 	if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
 	    get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
 	reiserfs_write_lock_xattr_i(dentry->d_inode);
-	lock = !has_xattr_dir(dentry->d_inode);
-	if (lock)
-		reiserfs_write_lock_xattrs(dentry->d_sb);
-	else
-		reiserfs_read_lock_xattrs(dentry->d_sb);
 	err = xah->set(dentry->d_inode, name, value, size, flags);
-	if (lock)
-		reiserfs_write_unlock_xattrs(dentry->d_sb);
-	else
-		reiserfs_read_unlock_xattrs(dentry->d_sb);
 	reiserfs_write_unlock_xattr_i(dentry->d_inode);
 	return err;
 }
@@ -902,8 +911,6 @@ int reiserfs_removexattr(struct dentry *dentry, const char *name)
 		return -EOPNOTSUPP;
 
 	reiserfs_write_lock_xattr_i(dentry->d_inode);
-	reiserfs_read_lock_xattrs(dentry->d_sb);
-
 	/* Deletion pre-operation */
 	if (xah->del) {
 		err = xah->del(dentry->d_inode, name);
@@ -917,7 +924,6 @@ int reiserfs_removexattr(struct dentry *dentry, const char *name)
 	mark_inode_dirty(dentry->d_inode);
 
       out:
-	reiserfs_read_unlock_xattrs(dentry->d_sb);
 	reiserfs_write_unlock_xattr_i(dentry->d_inode);
 	return err;
 }
@@ -966,8 +972,6 @@ reiserfs_listxattr_filler(void *buf, const char *name, int namelen,
 
 /*
  * Inode operation listxattr()
- *
- * Preliminary locking: we down dentry->d_inode->i_mutex
  */
 ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 {
@@ -983,9 +987,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 		return -EOPNOTSUPP;
 
 	reiserfs_read_lock_xattr_i(dentry->d_inode);
-	reiserfs_read_lock_xattrs(dentry->d_sb);
 	dir = open_xa_dir(dentry->d_inode, XATTR_REPLACE);
-	reiserfs_read_unlock_xattrs(dentry->d_sb);
 	if (IS_ERR(dir)) {
 		err = PTR_ERR(dir);
 		if (err == -ENODATA)
@@ -1114,11 +1116,9 @@ static int reiserfs_check_acl(struct inode *inode, int mask)
 	int error = -EAGAIN; /* do regular unix permission checks by default */
 
 	reiserfs_read_lock_xattr_i(inode);
-	reiserfs_read_lock_xattrs(inode->i_sb);
 
 	acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
 
-	reiserfs_read_unlock_xattrs(inode->i_sb);
 	reiserfs_read_unlock_xattr_i(inode);
 
 	if (acl) {
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 9128e4d5ba64..d63b2c5850c3 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -172,6 +172,29 @@ static void *posix_acl_to_disk(const struct posix_acl *acl, size_t * size)
 	return ERR_PTR(-EINVAL);
 }
 
+static inline void iset_acl(struct inode *inode, struct posix_acl **i_acl,
+			    struct posix_acl *acl)
+{
+	spin_lock(&inode->i_lock);
+	if (*i_acl != ERR_PTR(-ENODATA))
+		posix_acl_release(*i_acl);
+	*i_acl = posix_acl_dup(acl);
+	spin_unlock(&inode->i_lock);
+}
+
+static inline struct posix_acl *iget_acl(struct inode *inode,
+					 struct posix_acl **i_acl)
+{
+	struct posix_acl *acl = ERR_PTR(-ENODATA);
+
+	spin_lock(&inode->i_lock);
+	if (*i_acl != ERR_PTR(-ENODATA))
+		acl = posix_acl_dup(*i_acl);
+	spin_unlock(&inode->i_lock);
+
+	return acl;
+}
+
 /*
  * Inode operation get_posix_acl().
  *
@@ -199,11 +222,11 @@ struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (IS_ERR(*p_acl)) {
-		if (PTR_ERR(*p_acl) == -ENODATA)
-			return NULL;
-	} else if (*p_acl != NULL)
-		return posix_acl_dup(*p_acl);
+	acl = iget_acl(inode, p_acl);
+	if (acl && !IS_ERR(acl))
+		return acl;
+	else if (PTR_ERR(acl) == -ENODATA)
+		return NULL;
 
 	size = reiserfs_xattr_get(inode, name, NULL, 0);
 	if (size < 0) {
@@ -229,7 +252,7 @@ struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 	} else {
 		acl = posix_acl_from_disk(value, retval);
 		if (!IS_ERR(acl))
-			*p_acl = posix_acl_dup(acl);
+			iset_acl(inode, p_acl, acl);
 	}
 
 	kfree(value);
@@ -300,16 +323,8 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 
 	kfree(value);
 
-	if (!error) {
-		/* Release the old one */
-		if (!IS_ERR(*p_acl) && *p_acl)
-			posix_acl_release(*p_acl);
-
-		if (acl == NULL)
-			*p_acl = ERR_PTR(-ENODATA);
-		else
-			*p_acl = posix_acl_dup(acl);
-	}
+	if (!error)
+		iset_acl(inode, p_acl, acl);
 
 	return error;
 }
@@ -404,9 +419,7 @@ int reiserfs_cache_default_acl(struct inode *inode)
 	if (reiserfs_posixacl(inode->i_sb) && !IS_PRIVATE(inode)) {
 		struct posix_acl *acl;
 		reiserfs_read_lock_xattr_i(inode);
-		reiserfs_read_lock_xattrs(inode->i_sb);
 		acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT);
-		reiserfs_read_unlock_xattrs(inode->i_sb);
 		reiserfs_read_unlock_xattr_i(inode);
 		ret = (acl && !IS_ERR(acl));
 		if (ret)
@@ -429,9 +442,7 @@ int reiserfs_acl_chmod(struct inode *inode)
 		return 0;
 	}
 
-	reiserfs_read_lock_xattrs(inode->i_sb);
 	acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
-	reiserfs_read_unlock_xattrs(inode->i_sb);
 	if (!acl)
 		return 0;
 	if (IS_ERR(acl))
@@ -442,17 +453,8 @@ int reiserfs_acl_chmod(struct inode *inode)
 		return -ENOMEM;
 	error = posix_acl_chmod_masq(clone, inode->i_mode);
 	if (!error) {
-		int lock = !has_xattr_dir(inode);
 		reiserfs_write_lock_xattr_i(inode);
-		if (lock)
-			reiserfs_write_lock_xattrs(inode->i_sb);
-		else
-			reiserfs_read_lock_xattrs(inode->i_sb);
 		error = reiserfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
-		if (lock)
-			reiserfs_write_unlock_xattrs(inode->i_sb);
-		else
-			reiserfs_read_unlock_xattrs(inode->i_sb);
 		reiserfs_write_unlock_xattr_i(inode);
 	}
 	posix_acl_release(clone);
@@ -480,14 +482,9 @@ posix_acl_access_set(struct inode *inode, const char *name,
 static int posix_acl_access_del(struct inode *inode, const char *name)
 {
 	struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
-	struct posix_acl **acl = &reiserfs_i->i_acl_access;
 	if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS) - 1)
 		return -EINVAL;
-	if (!IS_ERR(*acl) && *acl) {
-		posix_acl_release(*acl);
-		*acl = ERR_PTR(-ENODATA);
-	}
-
+	iset_acl(inode, &reiserfs_i->i_acl_access, ERR_PTR(-ENODATA));
 	return 0;
 }
 
@@ -533,14 +530,9 @@ posix_acl_default_set(struct inode *inode, const char *name,
 static int posix_acl_default_del(struct inode *inode, const char *name)
 {
 	struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
-	struct posix_acl **acl = &reiserfs_i->i_acl_default;
 	if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT) - 1)
 		return -EINVAL;
-	if (!IS_ERR(*acl) && *acl) {
-		posix_acl_release(*acl);
-		*acl = ERR_PTR(-ENODATA);
-	}
-
+	iset_acl(inode, &reiserfs_i->i_acl_default, ERR_PTR(-ENODATA));
 	return 0;
 }
 
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 6c4af98b6767..e00d240314c5 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -2224,7 +2224,4 @@ int reiserfs_unpack(struct inode *inode, struct file *filp);
 #define reiserfs_write_lock( sb ) lock_kernel()
 #define reiserfs_write_unlock( sb ) unlock_kernel()
 
-/* xattr stuff */
-#define REISERFS_XATTR_DIR_SEM(s) (REISERFS_SB(s)->xattr_dir_sem)
-
 #endif				/* _LINUX_REISER_FS_H */
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index cbb8868e844e..c8aee41ccc23 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -403,9 +403,6 @@ struct reiserfs_sb_info {
 	spinlock_t bitmap_lock;	/* this lock on now only used to protect reserved_blocks variable */
 	struct dentry *priv_root;	/* root of /.reiserfs_priv */
 	struct dentry *xattr_root;	/* root of /.reiserfs_priv/.xa */
-#ifdef CONFIG_REISERFS_FS_XATTR
-	struct rw_semaphore xattr_dir_sem;
-#endif
 	int j_errno;
 #ifdef CONFIG_QUOTA
 	char *s_qf_names[MAXQUOTAS];
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 13cdd5e1cb60..65c16fa51246 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -67,45 +67,27 @@ extern struct reiserfs_xattr_handler user_handler;
 extern struct reiserfs_xattr_handler trusted_handler;
 extern struct reiserfs_xattr_handler security_handler;
 
-static inline void reiserfs_write_lock_xattrs(struct super_block *sb)
-{
-	down_write(&REISERFS_XATTR_DIR_SEM(sb));
-}
-static inline void reiserfs_write_unlock_xattrs(struct super_block *sb)
-{
-	up_write(&REISERFS_XATTR_DIR_SEM(sb));
-}
-static inline void reiserfs_read_lock_xattrs(struct super_block *sb)
-{
-	down_read(&REISERFS_XATTR_DIR_SEM(sb));
-}
-
-static inline void reiserfs_read_unlock_xattrs(struct super_block *sb)
-{
-	up_read(&REISERFS_XATTR_DIR_SEM(sb));
-}
-
 static inline void reiserfs_write_lock_xattr_i(struct inode *inode)
 {
-	down_write(&REISERFS_I(inode)->xattr_sem);
+	down_write(&REISERFS_I(inode)->i_xattr_sem);
 }
 static inline void reiserfs_write_unlock_xattr_i(struct inode *inode)
 {
-	up_write(&REISERFS_I(inode)->xattr_sem);
+	up_write(&REISERFS_I(inode)->i_xattr_sem);
 }
 static inline void reiserfs_read_lock_xattr_i(struct inode *inode)
 {
-	down_read(&REISERFS_I(inode)->xattr_sem);
+	down_read(&REISERFS_I(inode)->i_xattr_sem);
 }
 
 static inline void reiserfs_read_unlock_xattr_i(struct inode *inode)
 {
-	up_read(&REISERFS_I(inode)->xattr_sem);
+	up_read(&REISERFS_I(inode)->i_xattr_sem);
 }
 
 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 {
-	init_rwsem(&REISERFS_I(inode)->xattr_sem);
+	init_rwsem(&REISERFS_I(inode)->i_xattr_sem);
 }
 
 #else
-- 
cgit v1.2.3


From 8b6dd72a441a683cef7ace93de0a57ced4367f00 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:36 -0400
Subject: reiserfs: make per-inode xattr locking more fine grained

The per-inode locking can be made more fine-grained to surround just the
interaction with the filesystem itself.  This really only applies to
protecting reads during a write, since concurrent writes are barred with
inode->i_mutex at the vfs level.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/xattr.c            | 114 +++++++++++++++++++----------------------
 fs/reiserfs/xattr_acl.c        |   7 +--
 include/linux/reiserfs_fs_i.h  |   2 +-
 include/linux/reiserfs_xattr.h |  22 --------
 4 files changed, 55 insertions(+), 90 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 62c98829c545..ccb8e4d4c032 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -29,10 +29,8 @@
  * to the inode so that unnecessary lookups are avoided.
  *
  * Locking works like so:
- * The xattr root (/.reiserfs_priv/xattrs) is protected by its i_mutex.
- * The xattr dir (/.reiserfs_priv/xattrs/<oid>.<gen>) is protected by
- * inode->xattr_sem.
- * The xattrs themselves are likewise protected by the xattr_sem.
+ * Directory components (xattr root, xattr dir) are protectd by their i_mutex.
+ * The xattrs themselves are protected by the xattr_sem.
  */
 
 #include <linux/reiserfs_fs.h>
@@ -55,6 +53,8 @@
 #define PRIVROOT_NAME ".reiserfs_priv"
 #define XAROOT_NAME   "xattrs"
 
+static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char *);
+
 /* Helpers for inode ops. We do this so that we don't have all the VFS
  * overhead and also for proper i_mutex annotation.
  * dir->i_mutex must be held for all of them. */
@@ -339,12 +339,14 @@ int xattr_readdir(struct inode *inode, filldir_t filler, void *buf)
 	return res;
 }
 
+/* expects xadir->d_inode->i_mutex to be locked */
 static int
 __reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
 {
 	struct dentry *dentry;
 	struct inode *dir = xadir->d_inode;
 	int err = 0;
+	struct reiserfs_xattr_handler *xah;
 
 	dentry = lookup_one_len(name, xadir, namelen);
 	if (IS_ERR(dentry)) {
@@ -372,6 +374,14 @@ __reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
 		return -EIO;
 	}
 
+	/* Deletion pre-operation */
+	xah = find_xattr_handler_prefix(name);
+	if (xah && xah->del) {
+		err = xah->del(dentry->d_inode, name);
+		if (err)
+			goto out;
+	}
+
 	err = xattr_unlink(dir, dentry);
 
 out_file:
@@ -398,7 +408,7 @@ reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
 /* This is called w/ inode->i_mutex downed */
 int reiserfs_delete_xattrs(struct inode *inode)
 {
-	int err = 0;
+	int err = -ENODATA;
 	struct dentry *dir, *root;
 	struct reiserfs_transaction_handle th;
 	int blocks = JOURNAL_PER_BALANCE_CNT * 2 + 2 +
@@ -414,14 +424,19 @@ int reiserfs_delete_xattrs(struct inode *inode)
 		goto out;
 	} else if (!dir->d_inode) {
 		dput(dir);
-		return 0;
+		goto out;
 	}
 
 	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR);
 	err = xattr_readdir(dir->d_inode, reiserfs_delete_xattrs_filler, dir);
 	mutex_unlock(&dir->d_inode->i_mutex);
-	if (err)
-		goto out_dir;
+	if (err) {
+		dput(dir);
+		goto out;
+	}
+
+	root = dget(dir->d_parent);
+	dput(dir);
 
 	/* We start a transaction here to avoid a ABBA situation
 	 * between the xattr root's i_mutex and the journal lock.
@@ -435,19 +450,14 @@ int reiserfs_delete_xattrs(struct inode *inode)
 	err = journal_begin(&th, inode->i_sb, blocks);
 	if (!err) {
 		int jerror;
-		root = dget(dir->d_parent);
 		mutex_lock_nested(&root->d_inode->i_mutex, I_MUTEX_XATTR);
 		err = xattr_rmdir(root->d_inode, dir);
 		jerror = journal_end(&th, inode->i_sb, blocks);
 		mutex_unlock(&root->d_inode->i_mutex);
-		dput(root);
-
 		err = jerror ?: err;
 	}
 
-out_dir:
-	dput(dir);
-
+	dput(root);
 out:
 	if (!err)
 		REISERFS_I(inode)->i_flags =
@@ -484,7 +494,7 @@ reiserfs_chown_xattrs_filler(void *buf, const char *name, int namelen,
 
 	if (!S_ISDIR(xafile->d_inode->i_mode)) {
 		mutex_lock_nested(&xafile->d_inode->i_mutex, I_MUTEX_CHILD);
-		err = notify_change(xafile, attrs);
+		err = reiserfs_setattr(xafile, attrs);
 		mutex_unlock(&xafile->d_inode->i_mutex);
 	}
 	dput(xafile);
@@ -520,13 +530,16 @@ int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
 	err = xattr_readdir(dir->d_inode, reiserfs_chown_xattrs_filler, &buf);
 
 	if (!err)
-		err = notify_change(dir, attrs);
+		err = reiserfs_setattr(dir, attrs);
 	mutex_unlock(&dir->d_inode->i_mutex);
 
 	attrs->ia_valid = ia_valid;
 out_dir:
 	dput(dir);
 out:
+	if (err)
+		reiserfs_warning(inode->i_sb, "jdm-20007",
+				 "Couldn't chown all xattrs (%d)\n", err);
 	return err;
 }
 
@@ -635,9 +648,8 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
 	if (get_inode_sd_version(inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	/* Empty xattrs are ok, they're just empty files, no hash */
-	if (buffer && buffer_size)
-		xahash = xattr_hash(buffer, buffer_size);
+	if (!buffer)
+		return reiserfs_xattr_del(inode, name);
 
 	dentry = get_xa_file_dentry(inode, name, flags);
 	if (IS_ERR(dentry)) {
@@ -645,13 +657,19 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
 		goto out;
 	}
 
+	down_write(&REISERFS_I(inode)->i_xattr_sem);
+
+	xahash = xattr_hash(buffer, buffer_size);
 	REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
 
 	/* Resize it so we're ok to write there */
 	newattrs.ia_size = buffer_size;
+	newattrs.ia_ctime = current_fs_time(inode->i_sb);
 	newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
 	mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);
-	err = notify_change(dentry, &newattrs);
+	down_write(&dentry->d_inode->i_alloc_sem);
+	err = reiserfs_setattr(dentry, &newattrs);
+	up_write(&dentry->d_inode->i_alloc_sem);
 	mutex_unlock(&dentry->d_inode->i_mutex);
 	if (err)
 		goto out_filp;
@@ -712,6 +730,7 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
 	}
 
       out_filp:
+	up_write(&REISERFS_I(inode)->i_xattr_sem);
 	dput(dentry);
 
       out:
@@ -747,10 +766,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 		goto out;
 	}
 
-	/* protect against concurrent access. xattrs are backed by
-	 * regular files, but they're not regular files. The updates
-	 * must be atomic from the perspective of the user. */
-	mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);
+	down_read(&REISERFS_I(inode)->i_xattr_sem);
 
 	isize = i_size_read(dentry->d_inode);
 	REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
@@ -758,12 +774,12 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 	/* Just return the size needed */
 	if (buffer == NULL) {
 		err = isize - sizeof(struct reiserfs_xattr_header);
-		goto out_dput;
+		goto out_unlock;
 	}
 
 	if (buffer_size < isize - sizeof(struct reiserfs_xattr_header)) {
 		err = -ERANGE;
-		goto out_dput;
+		goto out_unlock;
 	}
 
 	while (file_pos < isize) {
@@ -778,7 +794,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 		page = reiserfs_get_page(dentry->d_inode, file_pos);
 		if (IS_ERR(page)) {
 			err = PTR_ERR(page);
-			goto out_dput;
+			goto out_unlock;
 		}
 
 		lock_page(page);
@@ -797,7 +813,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 						 "associated with %k", name,
 						 INODE_PKEY(inode));
 				err = -EIO;
-				goto out_dput;
+				goto out_unlock;
 			}
 			hash = le32_to_cpu(rxh->h_hash);
 		}
@@ -818,8 +834,8 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 		err = -EIO;
 	}
 
-out_dput:
-	mutex_unlock(&dentry->d_inode->i_mutex);
+out_unlock:
+	up_read(&REISERFS_I(inode)->i_xattr_sem);
 	dput(dentry);
 
 out:
@@ -852,8 +868,6 @@ int reiserfs_xattr_del(struct inode *inode, const char *name)
 }
 
 /* Actual operations that are exported to VFS-land */
-
-static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char *);
 /*
  * Inode operation getxattr()
  */
@@ -868,9 +882,7 @@ reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
 	    get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	reiserfs_read_lock_xattr_i(dentry->d_inode);
 	err = xah->get(dentry->d_inode, name, buffer, size);
-	reiserfs_read_unlock_xattr_i(dentry->d_inode);
 	return err;
 }
 
@@ -890,9 +902,7 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 	    get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	reiserfs_write_lock_xattr_i(dentry->d_inode);
 	err = xah->set(dentry->d_inode, name, value, size, flags);
-	reiserfs_write_unlock_xattr_i(dentry->d_inode);
 	return err;
 }
 
@@ -910,21 +920,11 @@ int reiserfs_removexattr(struct dentry *dentry, const char *name)
 	    get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	reiserfs_write_lock_xattr_i(dentry->d_inode);
-	/* Deletion pre-operation */
-	if (xah->del) {
-		err = xah->del(dentry->d_inode, name);
-		if (err)
-			goto out;
-	}
-
 	err = reiserfs_xattr_del(dentry->d_inode, name);
 
 	dentry->d_inode->i_ctime = CURRENT_TIME_SEC;
 	mark_inode_dirty(dentry->d_inode);
 
-      out:
-	reiserfs_write_unlock_xattr_i(dentry->d_inode);
 	return err;
 }
 
@@ -986,7 +986,6 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 	    get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	reiserfs_read_lock_xattr_i(dentry->d_inode);
 	dir = open_xa_dir(dentry->d_inode, XATTR_REPLACE);
 	if (IS_ERR(dir)) {
 		err = PTR_ERR(dir);
@@ -1005,19 +1004,16 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR);
 	err = xattr_readdir(dir->d_inode, reiserfs_listxattr_filler, &buf);
 	mutex_unlock(&dir->d_inode->i_mutex);
-	if (err)
-		goto out_dir;
 
-	if (buf.r_pos > buf.r_size && buffer != NULL)
-		err = -ERANGE;
-	else
-		err = buf.r_pos;
+	if (!err) {
+		if (buf.r_pos > buf.r_size && buffer != NULL)
+			err = -ERANGE;
+		else
+			err = buf.r_pos;
+	}
 
-      out_dir:
 	dput(dir);
-
-      out:
-	reiserfs_read_unlock_xattr_i(dentry->d_inode);
+out:
 	return err;
 }
 
@@ -1115,12 +1111,8 @@ static int reiserfs_check_acl(struct inode *inode, int mask)
 	struct posix_acl *acl;
 	int error = -EAGAIN; /* do regular unix permission checks by default */
 
-	reiserfs_read_lock_xattr_i(inode);
-
 	acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
 
-	reiserfs_read_unlock_xattr_i(inode);
-
 	if (acl) {
 		if (!IS_ERR(acl)) {
 			error = posix_acl_permission(inode, acl, mask);
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index d63b2c5850c3..d3ce6ee9b262 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -418,9 +418,7 @@ int reiserfs_cache_default_acl(struct inode *inode)
 	int ret = 0;
 	if (reiserfs_posixacl(inode->i_sb) && !IS_PRIVATE(inode)) {
 		struct posix_acl *acl;
-		reiserfs_read_lock_xattr_i(inode);
 		acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT);
-		reiserfs_read_unlock_xattr_i(inode);
 		ret = (acl && !IS_ERR(acl));
 		if (ret)
 			posix_acl_release(acl);
@@ -452,11 +450,8 @@ int reiserfs_acl_chmod(struct inode *inode)
 	if (!clone)
 		return -ENOMEM;
 	error = posix_acl_chmod_masq(clone, inode->i_mode);
-	if (!error) {
-		reiserfs_write_lock_xattr_i(inode);
+	if (!error)
 		error = reiserfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
-		reiserfs_write_unlock_xattr_i(inode);
-	}
 	posix_acl_release(clone);
 	return error;
 }
diff --git a/include/linux/reiserfs_fs_i.h b/include/linux/reiserfs_fs_i.h
index 201dd910b042..76360b36ac33 100644
--- a/include/linux/reiserfs_fs_i.h
+++ b/include/linux/reiserfs_fs_i.h
@@ -59,7 +59,7 @@ struct reiserfs_inode_info {
 	struct posix_acl *i_acl_default;
 #endif
 #ifdef CONFIG_REISERFS_FS_XATTR
-	struct rw_semaphore xattr_sem;
+	struct rw_semaphore i_xattr_sem;
 #endif
 	struct inode vfs_inode;
 };
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 65c16fa51246..3bd154fd56e9 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -67,24 +67,6 @@ extern struct reiserfs_xattr_handler user_handler;
 extern struct reiserfs_xattr_handler trusted_handler;
 extern struct reiserfs_xattr_handler security_handler;
 
-static inline void reiserfs_write_lock_xattr_i(struct inode *inode)
-{
-	down_write(&REISERFS_I(inode)->i_xattr_sem);
-}
-static inline void reiserfs_write_unlock_xattr_i(struct inode *inode)
-{
-	up_write(&REISERFS_I(inode)->i_xattr_sem);
-}
-static inline void reiserfs_read_lock_xattr_i(struct inode *inode)
-{
-	down_read(&REISERFS_I(inode)->i_xattr_sem);
-}
-
-static inline void reiserfs_read_unlock_xattr_i(struct inode *inode)
-{
-	up_read(&REISERFS_I(inode)->i_xattr_sem);
-}
-
 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 {
 	init_rwsem(&REISERFS_I(inode)->i_xattr_sem);
@@ -96,10 +78,6 @@ static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 #define reiserfs_setxattr NULL
 #define reiserfs_listxattr NULL
 #define reiserfs_removexattr NULL
-#define reiserfs_write_lock_xattrs(sb) do {;} while(0)
-#define reiserfs_write_unlock_xattrs(sb) do {;} while(0)
-#define reiserfs_read_lock_xattrs(sb)
-#define reiserfs_read_unlock_xattrs(sb)
 
 #define reiserfs_permission NULL
 
-- 
cgit v1.2.3


From 48b32a3553a54740d236b79a90f20147a25875e3 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:38 -0400
Subject: reiserfs: use generic xattr handlers

Christoph Hellwig had asked me quite some time ago to port the reiserfs
xattrs to the generic xattr interface.

This patch replaces the reiserfs-specific xattr handling code with the
generic struct xattr_handler.

However, since reiserfs doesn't split the prefix and name when accessing
xattrs, it can't leverage generic_{set,get,list,remove}xattr without
needlessly reconstructing the name on the back end.

Update 7/26/07: Added missing dput() to deletion path.
Update 8/30/07: Added missing mark_inode_dirty when i_mode is used to
                represent an ACL and no previous ACL existed.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/super.c            |   7 -
 fs/reiserfs/xattr.c            | 467 +++++++++++++++++------------------------
 fs/reiserfs/xattr_acl.c        |  79 +++----
 fs/reiserfs/xattr_security.c   |  26 +--
 fs/reiserfs/xattr_trusted.c    |  45 +---
 fs/reiserfs/xattr_user.c       |  31 +--
 include/linux/reiserfs_acl.h   |  16 +-
 include/linux/reiserfs_fs_sb.h |   3 +-
 include/linux/reiserfs_xattr.h |  25 +--
 9 files changed, 258 insertions(+), 441 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 6d10f81b4fc1..4a1e16362ebd 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2263,9 +2263,6 @@ static int __init init_reiserfs_fs(void)
 		return ret;
 	}
 
-	if ((ret = reiserfs_xattr_register_handlers()))
-		goto failed_reiserfs_xattr_register_handlers;
-
 	reiserfs_proc_info_global_init();
 	reiserfs_proc_register_global("version",
 				      reiserfs_global_version_in_proc);
@@ -2276,9 +2273,6 @@ static int __init init_reiserfs_fs(void)
 		return 0;
 	}
 
-	reiserfs_xattr_unregister_handlers();
-
-      failed_reiserfs_xattr_register_handlers:
 	reiserfs_proc_unregister_global("version");
 	reiserfs_proc_info_global_done();
 	destroy_inodecache();
@@ -2288,7 +2282,6 @@ static int __init init_reiserfs_fs(void)
 
 static void __exit exit_reiserfs_fs(void)
 {
-	reiserfs_xattr_unregister_handlers();
 	reiserfs_proc_unregister_global("version");
 	reiserfs_proc_info_global_done();
 	unregister_filesystem(&reiserfs_fs_type);
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 8d7e5d9ae17c..d3ce27436605 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -53,7 +53,6 @@
 #define PRIVROOT_NAME ".reiserfs_priv"
 #define XAROOT_NAME   "xattrs"
 
-static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char *);
 
 /* Helpers for inode ops. We do this so that we don't have all the VFS
  * overhead and also for proper i_mutex annotation.
@@ -110,7 +109,6 @@ static int xattr_rmdir(struct inode *dir, struct dentry *dentry)
 	return error;
 }
 
-
 #define xattr_may_create(flags)	(!flags || flags & XATTR_CREATE)
 
 /* Returns and possibly creates the xattr dir. */
@@ -339,14 +337,17 @@ int xattr_readdir(struct inode *inode, filldir_t filler, void *buf)
 	return res;
 }
 
-/* expects xadir->d_inode->i_mutex to be locked */
+/* The following are side effects of other operations that aren't explicitly
+ * modifying extended attributes. This includes operations such as permissions
+ * or ownership changes, object deletions, etc. */
+
 static int
-__reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
+reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
+			      loff_t offset, u64 ino, unsigned int d_type)
 {
+	struct dentry *xadir = (struct dentry *)buf;
 	struct dentry *dentry;
-	struct inode *dir = xadir->d_inode;
 	int err = 0;
-	struct reiserfs_xattr_handler *xah;
 
 	dentry = lookup_one_len(name, xadir, namelen);
 	if (IS_ERR(dentry)) {
@@ -361,28 +362,7 @@ __reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
 	if (S_ISDIR(dentry->d_inode->i_mode))
 		goto out_file;
 
-	if (!IS_PRIVATE(dentry->d_inode)) {
-		reiserfs_error(dir->i_sb, "jdm-20003",
-			       "OID %08x [%.*s/%.*s] doesn't have "
-			       "priv flag set [parent is %sset].",
-			       le32_to_cpu(INODE_PKEY(dentry->d_inode)->
-					   k_objectid), xadir->d_name.len,
-			       xadir->d_name.name, namelen, name,
-			       IS_PRIVATE(xadir->d_inode) ? "" :
-			       "not ");
-		dput(dentry);
-		return -EIO;
-	}
-
-	/* Deletion pre-operation */
-	xah = find_xattr_handler_prefix(name);
-	if (xah && xah->del) {
-		err = xah->del(dentry->d_inode, name);
-		if (err)
-			goto out;
-	}
-
-	err = xattr_unlink(dir, dentry);
+	err = xattr_unlink(xadir->d_inode, dentry);
 
 out_file:
 	dput(dentry);
@@ -391,20 +371,6 @@ out:
 	return err;
 }
 
-/* The following are side effects of other operations that aren't explicitly
- * modifying extended attributes. This includes operations such as permissions
- * or ownership changes, object deletions, etc. */
-
-static int
-reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
-			      loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct dentry *xadir = (struct dentry *)buf;
-
-	return __reiserfs_xattr_del(xadir, name, namelen);
-
-}
-
 /* This is called w/ inode->i_mutex downed */
 int reiserfs_delete_xattrs(struct inode *inode)
 {
@@ -541,14 +507,11 @@ out:
 }
 
 #ifdef CONFIG_REISERFS_FS_XATTR
-static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char
-								*prefix);
-
 /* Returns a dentry corresponding to a specific extended attribute file
  * for the inode. If flags allow, the file is created. Otherwise, a
  * valid or negative dentry, or an error is returned. */
-static struct dentry *get_xa_file_dentry(const struct inode *inode,
-					 const char *name, int flags)
+static struct dentry *xattr_lookup(struct inode *inode, const char *name,
+				    int flags)
 {
 	struct dentry *xadir, *xafile;
 	int err = 0;
@@ -623,6 +586,45 @@ int reiserfs_commit_write(struct file *f, struct page *page,
 int reiserfs_prepare_write(struct file *f, struct page *page,
 			   unsigned from, unsigned to);
 
+static void update_ctime(struct inode *inode)
+{
+	struct timespec now = current_fs_time(inode->i_sb);
+	if (hlist_unhashed(&inode->i_hash) || !inode->i_nlink ||
+	    timespec_equal(&inode->i_ctime, &now))
+		return;
+
+	inode->i_ctime = CURRENT_TIME_SEC;
+	mark_inode_dirty(inode);
+}
+
+static int lookup_and_delete_xattr(struct inode *inode, const char *name)
+{
+	int err = 0;
+	struct dentry *dentry, *xadir;
+
+	xadir = open_xa_dir(inode, XATTR_REPLACE);
+	if (IS_ERR(xadir))
+		return PTR_ERR(xadir);
+
+	dentry = lookup_one_len(name, xadir, strlen(name));
+	if (IS_ERR(dentry)) {
+		err = PTR_ERR(dentry);
+		goto out_dput;
+	}
+
+	if (dentry->d_inode) {
+		mutex_lock_nested(&xadir->d_inode->i_mutex, I_MUTEX_XATTR);
+		err = xattr_unlink(xadir->d_inode, dentry);
+		mutex_unlock(&xadir->d_inode->i_mutex);
+		update_ctime(inode);
+	}
+
+	dput(dentry);
+out_dput:
+	dput(xadir);
+	return err;
+}
+
 
 /* Generic extended attribute operations that can be used by xa plugins */
 
@@ -630,8 +632,8 @@ int reiserfs_prepare_write(struct file *f, struct page *page,
  * inode->i_mutex: down
  */
 int
-reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
-		   size_t buffer_size, int flags)
+__reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
+		     size_t buffer_size, int flags)
 {
 	int err = 0;
 	struct dentry *dentry;
@@ -639,37 +641,22 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
 	char *data;
 	size_t file_pos = 0;
 	size_t buffer_pos = 0;
-	struct iattr newattrs;
+	size_t new_size;
 	__u32 xahash = 0;
 
 	if (get_inode_sd_version(inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
 	if (!buffer)
-		return reiserfs_xattr_del(inode, name);
+		return lookup_and_delete_xattr(inode, name);
 
-	dentry = get_xa_file_dentry(inode, name, flags);
-	if (IS_ERR(dentry)) {
-		err = PTR_ERR(dentry);
-		goto out;
-	}
+	dentry = xattr_lookup(inode, name, flags);
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
 
 	down_write(&REISERFS_I(inode)->i_xattr_sem);
 
 	xahash = xattr_hash(buffer, buffer_size);
-
-	/* Resize it so we're ok to write there */
-	newattrs.ia_size = buffer_size;
-	newattrs.ia_ctime = current_fs_time(inode->i_sb);
-	newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
-	mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);
-	down_write(&dentry->d_inode->i_alloc_sem);
-	err = reiserfs_setattr(dentry, &newattrs);
-	up_write(&dentry->d_inode->i_alloc_sem);
-	mutex_unlock(&dentry->d_inode->i_mutex);
-	if (err)
-		goto out_filp;
-
 	while (buffer_pos < buffer_size || buffer_pos == 0) {
 		size_t chunk;
 		size_t skip = 0;
@@ -682,7 +669,7 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
 		page = reiserfs_get_page(dentry->d_inode, file_pos);
 		if (IS_ERR(page)) {
 			err = PTR_ERR(page);
-			goto out_filp;
+			goto out_unlock;
 		}
 
 		lock_page(page);
@@ -716,20 +703,33 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
 			break;
 	}
 
-	/* We can't mark the inode dirty if it's not hashed. This is the case
-	 * when we're inheriting the default ACL. If we dirty it, the inode
-	 * gets marked dirty, but won't (ever) make it onto the dirty list until
-	 * it's synced explicitly to clear I_DIRTY. This is bad. */
-	if (!hlist_unhashed(&inode->i_hash)) {
-		inode->i_ctime = CURRENT_TIME_SEC;
-		mark_inode_dirty(inode);
-	}
-
-      out_filp:
+	new_size = buffer_size + sizeof(struct reiserfs_xattr_header);
+	if (!err && new_size < i_size_read(dentry->d_inode)) {
+		struct iattr newattrs = {
+			.ia_ctime = current_fs_time(inode->i_sb),
+			.ia_size = buffer_size,
+			.ia_valid = ATTR_SIZE | ATTR_CTIME,
+		};
+		mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);
+		down_write(&dentry->d_inode->i_alloc_sem);
+		err = reiserfs_setattr(dentry, &newattrs);
+		up_write(&dentry->d_inode->i_alloc_sem);
+		mutex_unlock(&dentry->d_inode->i_mutex);
+	} else
+		update_ctime(inode);
+out_unlock:
 	up_write(&REISERFS_I(inode)->i_xattr_sem);
 	dput(dentry);
+	return err;
+}
 
-      out:
+int
+reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
+		     size_t buffer_size, int flags)
+{
+	int err = __reiserfs_xattr_set(inode, name, buffer, buffer_size, flags);
+	if (err == -ENODATA)
+		err = 0;
 	return err;
 }
 
@@ -737,7 +737,7 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
  * inode->i_mutex: down
  */
 int
-reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
+reiserfs_xattr_get(struct inode *inode, const char *name, void *buffer,
 		   size_t buffer_size)
 {
 	ssize_t err = 0;
@@ -756,7 +756,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
 	if (get_inode_sd_version(inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	dentry = get_xa_file_dentry(inode, name, XATTR_REPLACE);
+	dentry = xattr_lookup(inode, name, XATTR_REPLACE);
 	if (IS_ERR(dentry)) {
 		err = PTR_ERR(dentry);
 		goto out;
@@ -837,32 +837,53 @@ out:
 	return err;
 }
 
-int reiserfs_xattr_del(struct inode *inode, const char *name)
-{
-	struct dentry *dir;
-	int err;
+/* Actual operations that are exported to VFS-land */
+struct xattr_handler *reiserfs_xattr_handlers[] = {
+	&reiserfs_xattr_user_handler,
+	&reiserfs_xattr_trusted_handler,
+#ifdef CONFIG_REISERFS_FS_SECURITY
+	&reiserfs_xattr_security_handler,
+#endif
+#ifdef CONFIG_REISERFS_FS_POSIX_ACL
+	&reiserfs_posix_acl_access_handler,
+	&reiserfs_posix_acl_default_handler,
+#endif
+	NULL
+};
 
-	dir = open_xa_dir(inode, XATTR_REPLACE);
-	if (IS_ERR(dir)) {
-		err = PTR_ERR(dir);
-		goto out;
-	}
+/*
+ * In order to implement different sets of xattr operations for each xattr
+ * prefix with the generic xattr API, a filesystem should create a
+ * null-terminated array of struct xattr_handler (one for each prefix) and
+ * hang a pointer to it off of the s_xattr field of the superblock.
+ *
+ * The generic_fooxattr() functions will use this list to dispatch xattr
+ * operations to the correct xattr_handler.
+ */
+#define for_each_xattr_handler(handlers, handler)		\
+		for ((handler) = *(handlers)++;			\
+			(handler) != NULL;			\
+			(handler) = *(handlers)++)
 
-	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR);
-	err = __reiserfs_xattr_del(dir, name, strlen(name));
-	mutex_unlock(&dir->d_inode->i_mutex);
-	dput(dir);
+/* This is the implementation for the xattr plugin infrastructure */
+static inline struct xattr_handler *
+find_xattr_handler_prefix(struct xattr_handler **handlers,
+			   const char *name)
+{
+	struct xattr_handler *xah;
 
-	if (!err) {
-		inode->i_ctime = CURRENT_TIME_SEC;
-		mark_inode_dirty(inode);
+	if (!handlers)
+		return NULL;
+
+	for_each_xattr_handler(handlers, xah) {
+		if (strncmp(xah->prefix, name, strlen(xah->prefix)) == 0)
+			break;
 	}
 
-      out:
-	return err;
+	return xah;
 }
 
-/* Actual operations that are exported to VFS-land */
+
 /*
  * Inode operation getxattr()
  */
@@ -870,15 +891,15 @@ ssize_t
 reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
 		  size_t size)
 {
-	struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix(name);
-	int err;
+	struct inode *inode = dentry->d_inode;
+	struct xattr_handler *handler;
 
-	if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
-	    get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
+	handler = find_xattr_handler_prefix(inode->i_sb->s_xattr, name);
+
+	if (!handler || get_inode_sd_version(inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	err = xah->get(dentry->d_inode, name, buffer, size);
-	return err;
+	return handler->get(inode, name, buffer, size);
 }
 
 /*
@@ -890,15 +911,15 @@ int
 reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 		  size_t size, int flags)
 {
-	struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix(name);
-	int err;
+	struct inode *inode = dentry->d_inode;
+	struct xattr_handler *handler;
 
-	if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
-	    get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
+	handler = find_xattr_handler_prefix(inode->i_sb->s_xattr, name);
+
+	if (!handler || get_inode_sd_version(inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	err = xah->set(dentry->d_inode, name, value, size, flags);
-	return err;
+	return handler->set(inode, name, value, size, flags);
 }
 
 /*
@@ -908,71 +929,65 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
  */
 int reiserfs_removexattr(struct dentry *dentry, const char *name)
 {
-	int err;
-	struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix(name);
+	struct inode *inode = dentry->d_inode;
+	struct xattr_handler *handler;
+	handler = find_xattr_handler_prefix(inode->i_sb->s_xattr, name);
 
-	if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
-	    get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
+	if (!handler || get_inode_sd_version(inode) == STAT_DATA_V1)
 		return -EOPNOTSUPP;
 
-	err = reiserfs_xattr_del(dentry->d_inode, name);
-
-	dentry->d_inode->i_ctime = CURRENT_TIME_SEC;
-	mark_inode_dirty(dentry->d_inode);
-
-	return err;
+	return handler->set(inode, name, NULL, 0, XATTR_REPLACE);
 }
 
-/* This is what filldir will use:
- * r_pos will always contain the amount of space required for the entire
- * list. If r_pos becomes larger than r_size, we need more space and we
- * return an error indicating this. If r_pos is less than r_size, then we've
- * filled the buffer successfully and we return success */
-struct reiserfs_listxattr_buf {
-	int r_pos;
-	int r_size;
-	char *r_buf;
-	struct inode *r_inode;
+struct listxattr_buf {
+	size_t size;
+	size_t pos;
+	char *buf;
+	struct inode *inode;
 };
 
-static int
-reiserfs_listxattr_filler(void *buf, const char *name, int namelen,
-			  loff_t offset, u64 ino, unsigned int d_type)
+static int listxattr_filler(void *buf, const char *name, int namelen,
+			    loff_t offset, u64 ino, unsigned int d_type)
 {
-	struct reiserfs_listxattr_buf *b = (struct reiserfs_listxattr_buf *)buf;
-	int len = 0;
-	if (name[0] != '.'
-	    || (namelen != 1 && (name[1] != '.' || namelen != 2))) {
-		struct reiserfs_xattr_handler *xah =
-		    find_xattr_handler_prefix(name);
-		if (!xah)
-			return 0;	/* Unsupported xattr name, skip it */
-
-		/* We call ->list() twice because the operation isn't required to just
-		 * return the name back - we want to make sure we have enough space */
-		len += xah->list(b->r_inode, name, namelen, NULL);
-
-		if (len) {
-			if (b->r_pos + len + 1 <= b->r_size) {
-				char *p = b->r_buf + b->r_pos;
-				p += xah->list(b->r_inode, name, namelen, p);
-				*p++ = '\0';
-			}
-			b->r_pos += len + 1;
+	struct listxattr_buf *b = (struct listxattr_buf *)buf;
+	size_t size;
+	if (name[0] != '.' ||
+	    (namelen != 1 && (name[1] != '.' || namelen != 2))) {
+		struct xattr_handler *handler;
+		handler = find_xattr_handler_prefix(b->inode->i_sb->s_xattr,
+						    name);
+		if (!handler)	/* Unsupported xattr name */
+			return 0;
+		if (b->buf) {
+			size = handler->list(b->inode, b->buf + b->pos,
+					 b->size, name, namelen);
+			if (size > b->size)
+				return -ERANGE;
+		} else {
+			size = handler->list(b->inode, NULL, 0, name, namelen);
 		}
-	}
 
+		b->pos += size;
+	}
 	return 0;
 }
 
 /*
  * Inode operation listxattr()
+ *
+ * We totally ignore the generic listxattr here because it would be stupid
+ * not to. Since the xattrs are organized in a directory, we can just
+ * readdir to find them.
  */
 ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 {
 	struct dentry *dir;
 	int err = 0;
-	struct reiserfs_listxattr_buf buf;
+	struct listxattr_buf buf = {
+		.inode = dentry->d_inode,
+		.buf = buffer,
+		.size = buffer ? size : 0,
+	};
 
 	if (!dentry->d_inode)
 		return -EINVAL;
@@ -985,120 +1000,22 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 	if (IS_ERR(dir)) {
 		err = PTR_ERR(dir);
 		if (err == -ENODATA)
-			err = 0;	/* Not an error if there aren't any xattrs */
+			err = 0;  /* Not an error if there aren't any xattrs */
 		goto out;
 	}
 
-	buf.r_buf = buffer;
-	buf.r_size = buffer ? size : 0;
-	buf.r_pos = 0;
-	buf.r_inode = dentry->d_inode;
-
 	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR);
-	err = xattr_readdir(dir->d_inode, reiserfs_listxattr_filler, &buf);
+	err = xattr_readdir(dir->d_inode, listxattr_filler, &buf);
 	mutex_unlock(&dir->d_inode->i_mutex);
 
-	if (!err) {
-		if (buf.r_pos > buf.r_size && buffer != NULL)
-			err = -ERANGE;
-		else
-			err = buf.r_pos;
-	}
+	if (!err)
+		err = buf.pos;
 
 	dput(dir);
 out:
 	return err;
 }
 
-/* This is the implementation for the xattr plugin infrastructure */
-static LIST_HEAD(xattr_handlers);
-static DEFINE_RWLOCK(handler_lock);
-
-static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char
-								*prefix)
-{
-	struct reiserfs_xattr_handler *xah = NULL;
-	struct list_head *p;
-
-	read_lock(&handler_lock);
-	list_for_each(p, &xattr_handlers) {
-		xah = list_entry(p, struct reiserfs_xattr_handler, handlers);
-		if (strncmp(xah->prefix, prefix, strlen(xah->prefix)) == 0)
-			break;
-		xah = NULL;
-	}
-
-	read_unlock(&handler_lock);
-	return xah;
-}
-
-static void __unregister_handlers(void)
-{
-	struct reiserfs_xattr_handler *xah;
-	struct list_head *p, *tmp;
-
-	list_for_each_safe(p, tmp, &xattr_handlers) {
-		xah = list_entry(p, struct reiserfs_xattr_handler, handlers);
-		if (xah->exit)
-			xah->exit();
-
-		list_del_init(p);
-	}
-	INIT_LIST_HEAD(&xattr_handlers);
-}
-
-int __init reiserfs_xattr_register_handlers(void)
-{
-	int err = 0;
-	struct reiserfs_xattr_handler *xah;
-	struct list_head *p;
-
-	write_lock(&handler_lock);
-
-	/* If we're already initialized, nothing to do */
-	if (!list_empty(&xattr_handlers)) {
-		write_unlock(&handler_lock);
-		return 0;
-	}
-
-	/* Add the handlers */
-	list_add_tail(&user_handler.handlers, &xattr_handlers);
-	list_add_tail(&trusted_handler.handlers, &xattr_handlers);
-#ifdef CONFIG_REISERFS_FS_SECURITY
-	list_add_tail(&security_handler.handlers, &xattr_handlers);
-#endif
-#ifdef CONFIG_REISERFS_FS_POSIX_ACL
-	list_add_tail(&posix_acl_access_handler.handlers, &xattr_handlers);
-	list_add_tail(&posix_acl_default_handler.handlers, &xattr_handlers);
-#endif
-
-	/* Run initializers, if available */
-	list_for_each(p, &xattr_handlers) {
-		xah = list_entry(p, struct reiserfs_xattr_handler, handlers);
-		if (xah->init) {
-			err = xah->init();
-			if (err) {
-				list_del_init(p);
-				break;
-			}
-		}
-	}
-
-	/* Clean up other handlers, if any failed */
-	if (err)
-		__unregister_handlers();
-
-	write_unlock(&handler_lock);
-	return err;
-}
-
-void reiserfs_xattr_unregister_handlers(void)
-{
-	write_lock(&handler_lock);
-	__unregister_handlers();
-	write_unlock(&handler_lock);
-}
-
 static int reiserfs_check_acl(struct inode *inode, int mask)
 {
 	struct posix_acl *acl;
@@ -1157,20 +1074,16 @@ static int xattr_mount_check(struct super_block *s)
 {
 	/* We need generation numbers to ensure that the oid mapping is correct
 	 * v3.5 filesystems don't have them. */
-	if (!old_format_only(s)) {
-		set_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
-	} else if (reiserfs_xattrs_optional(s)) {
-		/* Old format filesystem, but optional xattrs have been enabled
-		 * at mount time. Error out. */
-		reiserfs_warning(s, "jdm-20005",
-				 "xattrs/ACLs not supported on pre v3.6 "
-				 "format filesystem. Failing mount.");
-		return -EOPNOTSUPP;
-	} else {
-		/* Old format filesystem, but no optional xattrs have
-		 * been enabled. This means we silently disable xattrs
-		 * on the filesystem. */
-		clear_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
+	if (old_format_only(s)) {
+		if (reiserfs_xattrs_optional(s)) {
+			/* Old format filesystem, but optional xattrs have
+			 * been enabled. Error out. */
+			reiserfs_warning(s, "jdm-2005",
+					 "xattrs/ACLs not supported "
+					 "on pre-v3.6 format filesystems. "
+					 "Failing mount.");
+			return -EOPNOTSUPP;
+		}
 	}
 
 	return 0;
@@ -1251,9 +1164,11 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
 	}
 
 #ifdef CONFIG_REISERFS_FS_XATTR
+	if (!err)
+		s->s_xattr = reiserfs_xattr_handlers;
+
 error:
 	if (err) {
-		clear_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
 		clear_bit(REISERFS_XATTRS_USER, &(REISERFS_SB(s)->s_mount_opt));
 		clear_bit(REISERFS_POSIXACL, &(REISERFS_SB(s)->s_mount_opt));
 	}
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index d3ce6ee9b262..bfecf7553002 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -271,7 +271,7 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 	char *name;
 	void *value = NULL;
 	struct posix_acl **p_acl;
-	size_t size;
+	size_t size = 0;
 	int error;
 	struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
 
@@ -308,16 +308,21 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 		value = posix_acl_to_disk(acl, &size);
 		if (IS_ERR(value))
 			return (int)PTR_ERR(value);
-		error = reiserfs_xattr_set(inode, name, value, size, 0);
-	} else {
-		error = reiserfs_xattr_del(inode, name);
-		if (error == -ENODATA) {
-			/* This may seem odd here, but it means that the ACL was set
-			 * with a value representable with mode bits. If there was
-			 * an ACL before, reiserfs_xattr_del already dirtied the inode.
-			 */
+	}
+
+	error = __reiserfs_xattr_set(inode, name, value, size, 0);
+
+	/*
+	 * Ensure that the inode gets dirtied if we're only using
+	 * the mode bits and an old ACL didn't exist. We don't need
+	 * to check if the inode is hashed here since we won't get
+	 * called by reiserfs_inherit_default_acl().
+	 */
+	if (error == -ENODATA) {
+		error = 0;
+		if (type == ACL_TYPE_ACCESS) {
+			inode->i_ctime = CURRENT_TIME_SEC;
 			mark_inode_dirty(inode);
-			error = 0;
 		}
 	}
 
@@ -474,33 +479,22 @@ posix_acl_access_set(struct inode *inode, const char *name,
 	return xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
 }
 
-static int posix_acl_access_del(struct inode *inode, const char *name)
-{
-	struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
-	if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS) - 1)
-		return -EINVAL;
-	iset_acl(inode, &reiserfs_i->i_acl_access, ERR_PTR(-ENODATA));
-	return 0;
-}
-
-static int
-posix_acl_access_list(struct inode *inode, const char *name, int namelen,
-		      char *out)
+static size_t posix_acl_access_list(struct inode *inode, char *list,
+				    size_t list_size, const char *name,
+				    size_t name_len)
 {
-	int len = namelen;
+	const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
 	if (!reiserfs_posixacl(inode->i_sb))
 		return 0;
-	if (out)
-		memcpy(out, name, len);
-
-	return len;
+	if (list && size <= list_size)
+		memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
+	return size;
 }
 
-struct reiserfs_xattr_handler posix_acl_access_handler = {
+struct xattr_handler reiserfs_posix_acl_access_handler = {
 	.prefix = POSIX_ACL_XATTR_ACCESS,
 	.get = posix_acl_access_get,
 	.set = posix_acl_access_set,
-	.del = posix_acl_access_del,
 	.list = posix_acl_access_list,
 };
 
@@ -522,32 +516,21 @@ posix_acl_default_set(struct inode *inode, const char *name,
 	return xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
 }
 
-static int posix_acl_default_del(struct inode *inode, const char *name)
+static size_t posix_acl_default_list(struct inode *inode, char *list,
+				     size_t list_size, const char *name,
+				     size_t name_len)
 {
-	struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
-	if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT) - 1)
-		return -EINVAL;
-	iset_acl(inode, &reiserfs_i->i_acl_default, ERR_PTR(-ENODATA));
-	return 0;
-}
-
-static int
-posix_acl_default_list(struct inode *inode, const char *name, int namelen,
-		       char *out)
-{
-	int len = namelen;
+	const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
 	if (!reiserfs_posixacl(inode->i_sb))
 		return 0;
-	if (out)
-		memcpy(out, name, len);
-
-	return len;
+	if (list && size <= list_size)
+		memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
+	return size;
 }
 
-struct reiserfs_xattr_handler posix_acl_default_handler = {
+struct xattr_handler reiserfs_posix_acl_default_handler = {
 	.prefix = POSIX_ACL_XATTR_DEFAULT,
 	.get = posix_acl_default_get,
 	.set = posix_acl_default_set,
-	.del = posix_acl_default_del,
 	.list = posix_acl_default_list,
 };
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c
index 1958b361c35d..2aacf1fe69fd 100644
--- a/fs/reiserfs/xattr_security.c
+++ b/fs/reiserfs/xattr_security.c
@@ -31,35 +31,25 @@ security_set(struct inode *inode, const char *name, const void *buffer,
 	return reiserfs_xattr_set(inode, name, buffer, size, flags);
 }
 
-static int security_del(struct inode *inode, const char *name)
+static size_t security_list(struct inode *inode, char *list, size_t list_len,
+			    const char *name, size_t namelen)
 {
-	if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
-		return -EINVAL;
-
-	if (IS_PRIVATE(inode))
-		return -EPERM;
-
-	return 0;
-}
-
-static int
-security_list(struct inode *inode, const char *name, int namelen, char *out)
-{
-	int len = namelen;
+	const size_t len = namelen + 1;
 
 	if (IS_PRIVATE(inode))
 		return 0;
 
-	if (out)
-		memcpy(out, name, len);
+	if (list && len <= list_len) {
+		memcpy(list, name, namelen);
+		list[namelen] = '\0';
+	}
 
 	return len;
 }
 
-struct reiserfs_xattr_handler security_handler = {
+struct xattr_handler reiserfs_xattr_security_handler = {
 	.prefix = XATTR_SECURITY_PREFIX,
 	.get = security_get,
 	.set = security_set,
-	.del = security_del,
 	.list = security_list,
 };
diff --git a/fs/reiserfs/xattr_trusted.c b/fs/reiserfs/xattr_trusted.c
index 076ad388d489..a865042f75e2 100644
--- a/fs/reiserfs/xattr_trusted.c
+++ b/fs/reiserfs/xattr_trusted.c
@@ -13,10 +13,7 @@ trusted_get(struct inode *inode, const char *name, void *buffer, size_t size)
 	if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
 		return -EINVAL;
 
-	if (!reiserfs_xattrs(inode->i_sb))
-		return -EOPNOTSUPP;
-
-	if (!(capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)))
+	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
 		return -EPERM;
 
 	return reiserfs_xattr_get(inode, name, buffer, size);
@@ -29,50 +26,30 @@ trusted_set(struct inode *inode, const char *name, const void *buffer,
 	if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
 		return -EINVAL;
 
-	if (!reiserfs_xattrs(inode->i_sb))
-		return -EOPNOTSUPP;
-
-	if (!(capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)))
+	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
 		return -EPERM;
 
 	return reiserfs_xattr_set(inode, name, buffer, size, flags);
 }
 
-static int trusted_del(struct inode *inode, const char *name)
+static size_t trusted_list(struct inode *inode, char *list, size_t list_size,
+			   const char *name, size_t name_len)
 {
-	if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
-		return -EINVAL;
+	const size_t len = name_len + 1;
 
-	if (!reiserfs_xattrs(inode->i_sb))
-		return -EOPNOTSUPP;
-
-	if (!(capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)))
-		return -EPERM;
-
-	return 0;
-}
-
-static int
-trusted_list(struct inode *inode, const char *name, int namelen, char *out)
-{
-	int len = namelen;
-
-	if (!reiserfs_xattrs(inode->i_sb))
+	if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode))
 		return 0;
 
-	if (!(capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)))
-		return 0;
-
-	if (out)
-		memcpy(out, name, len);
-
+	if (list && len <= list_size) {
+		memcpy(list, name, name_len);
+		list[name_len] = '\0';
+	}
 	return len;
 }
 
-struct reiserfs_xattr_handler trusted_handler = {
+struct xattr_handler reiserfs_xattr_trusted_handler = {
 	.prefix = XATTR_TRUSTED_PREFIX,
 	.get = trusted_get,
 	.set = trusted_set,
-	.del = trusted_del,
 	.list = trusted_list,
 };
diff --git a/fs/reiserfs/xattr_user.c b/fs/reiserfs/xattr_user.c
index 1384efcb938e..e3238dc4f3db 100644
--- a/fs/reiserfs/xattr_user.c
+++ b/fs/reiserfs/xattr_user.c
@@ -6,10 +6,6 @@
 #include <linux/reiserfs_xattr.h>
 #include <asm/uaccess.h>
 
-#ifdef CONFIG_REISERFS_FS_POSIX_ACL
-# include <linux/reiserfs_acl.h>
-#endif
-
 static int
 user_get(struct inode *inode, const char *name, void *buffer, size_t size)
 {
@@ -25,7 +21,6 @@ static int
 user_set(struct inode *inode, const char *name, const void *buffer,
 	 size_t size, int flags)
 {
-
 	if (strlen(name) < sizeof(XATTR_USER_PREFIX))
 		return -EINVAL;
 
@@ -34,33 +29,23 @@ user_set(struct inode *inode, const char *name, const void *buffer,
 	return reiserfs_xattr_set(inode, name, buffer, size, flags);
 }
 
-static int user_del(struct inode *inode, const char *name)
+static size_t user_list(struct inode *inode, char *list, size_t list_size,
+			const char *name, size_t name_len)
 {
-	if (strlen(name) < sizeof(XATTR_USER_PREFIX))
-		return -EINVAL;
-
-	if (!reiserfs_xattrs_user(inode->i_sb))
-		return -EOPNOTSUPP;
-	return 0;
-}
+	const size_t len = name_len + 1;
 
-static int
-user_list(struct inode *inode, const char *name, int namelen, char *out)
-{
-	int len = namelen;
 	if (!reiserfs_xattrs_user(inode->i_sb))
 		return 0;
-
-	if (out)
-		memcpy(out, name, len);
-
+	if (list && len <= list_size) {
+		memcpy(list, name, name_len);
+		list[name_len] = '\0';
+	}
 	return len;
 }
 
-struct reiserfs_xattr_handler user_handler = {
+struct xattr_handler reiserfs_xattr_user_handler = {
 	.prefix = XATTR_USER_PREFIX,
 	.get = user_get,
 	.set = user_set,
-	.del = user_del,
 	.list = user_list,
 };
diff --git a/include/linux/reiserfs_acl.h b/include/linux/reiserfs_acl.h
index fe00f781a622..d180446470f2 100644
--- a/include/linux/reiserfs_acl.h
+++ b/include/linux/reiserfs_acl.h
@@ -52,10 +52,8 @@ int reiserfs_acl_chmod(struct inode *inode);
 int reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
 				 struct inode *inode);
 int reiserfs_cache_default_acl(struct inode *dir);
-extern int reiserfs_xattr_posix_acl_init(void) __init;
-extern int reiserfs_xattr_posix_acl_exit(void);
-extern struct reiserfs_xattr_handler posix_acl_default_handler;
-extern struct reiserfs_xattr_handler posix_acl_access_handler;
+extern struct xattr_handler reiserfs_posix_acl_default_handler;
+extern struct xattr_handler reiserfs_posix_acl_access_handler;
 
 static inline void reiserfs_init_acl_access(struct inode *inode)
 {
@@ -75,16 +73,6 @@ static inline struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 	return NULL;
 }
 
-static inline int reiserfs_xattr_posix_acl_init(void)
-{
-	return 0;
-}
-
-static inline int reiserfs_xattr_posix_acl_exit(void)
-{
-	return 0;
-}
-
 static inline int reiserfs_acl_chmod(struct inode *inode)
 {
 	return 0;
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index c8aee41ccc23..4686b90886ed 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -451,7 +451,6 @@ enum reiserfs_mount_options {
 	REISERFS_NO_UNHASHED_RELOCATION,
 	REISERFS_HASHED_RELOCATION,
 	REISERFS_ATTRS,
-	REISERFS_XATTRS,
 	REISERFS_XATTRS_USER,
 	REISERFS_POSIXACL,
 	REISERFS_BARRIER_NONE,
@@ -489,7 +488,7 @@ enum reiserfs_mount_options {
 #define reiserfs_data_log(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_LOG))
 #define reiserfs_data_ordered(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_ORDERED))
 #define reiserfs_data_writeback(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_WRITEBACK))
-#define reiserfs_xattrs(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_XATTRS))
+#define reiserfs_xattrs(s) ((s)->s_xattr != NULL)
 #define reiserfs_xattrs_user(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_XATTRS_USER))
 #define reiserfs_posixacl(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_POSIXACL))
 #define reiserfs_xattrs_optional(s) (reiserfs_xattrs_user(s) || reiserfs_posixacl(s))
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 3bd154fd56e9..958fcaca0e8b 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -29,20 +29,6 @@ struct iattr;
 struct super_block;
 struct nameidata;
 
-struct reiserfs_xattr_handler {
-	char *prefix;
-	int (*init) (void);
-	void (*exit) (void);
-	int (*get) (struct inode * inode, const char *name, void *buffer,
-		    size_t size);
-	int (*set) (struct inode * inode, const char *name, const void *buffer,
-		    size_t size, int flags);
-	int (*del) (struct inode * inode, const char *name);
-	int (*list) (struct inode * inode, const char *name, int namelen,
-		     char *out);
-	struct list_head handlers;
-};
-
 int reiserfs_xattr_register_handlers(void) __init;
 void reiserfs_xattr_unregister_handlers(void);
 int reiserfs_xattr_init(struct super_block *sb, int mount_flags);
@@ -59,13 +45,14 @@ ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
 int reiserfs_removexattr(struct dentry *dentry, const char *name);
 int reiserfs_permission(struct inode *inode, int mask);
 
-int reiserfs_xattr_del(struct inode *, const char *);
-int reiserfs_xattr_get(const struct inode *, const char *, void *, size_t);
+int reiserfs_xattr_get(struct inode *, const char *, void *, size_t);
+int __reiserfs_xattr_set(struct inode *, const char *, const void *,
+			 size_t, int);
 int reiserfs_xattr_set(struct inode *, const char *, const void *, size_t, int);
 
-extern struct reiserfs_xattr_handler user_handler;
-extern struct reiserfs_xattr_handler trusted_handler;
-extern struct reiserfs_xattr_handler security_handler;
+extern struct xattr_handler reiserfs_xattr_user_handler;
+extern struct xattr_handler reiserfs_xattr_trusted_handler;
+extern struct xattr_handler reiserfs_xattr_security_handler;
 
 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 {
-- 
cgit v1.2.3


From 0ab2621ebd9a28bf7a524ecd50d492a10579dfcc Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:39 -0400
Subject: reiserfs: journaled xattrs

Deadlocks are possible in the xattr code between the journal lock and the
xattr sems.

This patch implements journalling for xattr operations. The benefit is
twofold:
 * It gets rid of the deadlock possibility by always ensuring that xattr
   write operations are initiated inside a transaction.
 * It corrects the problem where xattr backing files aren't considered any
   differently than normal files, despite the fact they are metadata.

I discussed the added journal load with Chris Mason, and we decided that
since xattrs (versus other journal activity) is fairly rare, the introduction
of larger transactions to support journaled xattrs wouldn't be too big a deal.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/inode.c            |   3 +-
 fs/reiserfs/namei.c            |  14 ++----
 fs/reiserfs/xattr.c            |  39 +++++++++++----
 fs/reiserfs/xattr_acl.c        | 105 +++++++++++++++++++++++++++++++----------
 include/linux/reiserfs_acl.h   |   3 +-
 include/linux/reiserfs_fs.h    |   4 ++
 include/linux/reiserfs_xattr.h |  40 +++++++++++++++-
 7 files changed, 159 insertions(+), 49 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 50a73e7afdc8..995f6975cae1 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1914,9 +1914,8 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 		goto out_inserted_sd;
 	}
 
-	/* XXX CHECK THIS */
 	if (reiserfs_posixacl(inode->i_sb)) {
-		retval = reiserfs_inherit_default_acl(dir, dentry, inode);
+		retval = reiserfs_inherit_default_acl(th, dir, dentry, inode);
 		if (retval) {
 			err = retval;
 			reiserfs_check_path(&path_to_key);
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index ddf1bcd41c87..d9c1c8bd2950 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -598,15 +598,13 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
 	    2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
 		 REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
 	struct reiserfs_transaction_handle th;
-	int locked;
 
 	if (!(inode = new_inode(dir->i_sb))) {
 		return -ENOMEM;
 	}
 	new_inode_init(inode, dir, mode);
 
-	locked = reiserfs_cache_default_acl(dir);
-
+	jbegin_count += reiserfs_cache_default_acl(dir);
 	reiserfs_write_lock(dir->i_sb);
 
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
@@ -662,7 +660,6 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 	    JOURNAL_PER_BALANCE_CNT * 3 +
 	    2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
 		 REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
-	int locked;
 
 	if (!new_valid_dev(rdev))
 		return -EINVAL;
@@ -672,8 +669,7 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 	}
 	new_inode_init(inode, dir, mode);
 
-	locked = reiserfs_cache_default_acl(dir);
-
+	jbegin_count += reiserfs_cache_default_acl(dir);
 	reiserfs_write_lock(dir->i_sb);
 
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
@@ -732,7 +728,6 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	    JOURNAL_PER_BALANCE_CNT * 3 +
 	    2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
 		 REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
-	int locked;
 
 #ifdef DISPLACE_NEW_PACKING_LOCALITIES
 	/* set flag that new packing locality created and new blocks for the content     * of that directory are not displaced yet */
@@ -744,8 +739,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	}
 	new_inode_init(inode, dir, mode);
 
-	locked = reiserfs_cache_default_acl(dir);
-
+	jbegin_count += reiserfs_cache_default_acl(dir);
 	reiserfs_write_lock(dir->i_sb);
 
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
@@ -1034,8 +1028,6 @@ static int reiserfs_symlink(struct inode *parent_dir,
 	memcpy(name, symname, strlen(symname));
 	padd_item(name, item_len, strlen(symname));
 
-	/* We would inherit the default ACL here, but symlinks don't get ACLs */
-
 	retval = journal_begin(&th, parent_dir->i_sb, jbegin_count);
 	if (retval) {
 		drop_new_inode(inode);
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index d3ce27436605..c2e3a92aaf2b 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -632,8 +632,9 @@ out_dput:
  * inode->i_mutex: down
  */
 int
-__reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
-		     size_t buffer_size, int flags)
+reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
+			  struct inode *inode, const char *name,
+			  const void *buffer, size_t buffer_size, int flags)
 {
 	int err = 0;
 	struct dentry *dentry;
@@ -723,14 +724,34 @@ out_unlock:
 	return err;
 }
 
-int
-reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
-		     size_t buffer_size, int flags)
+/* We need to start a transaction to maintain lock ordering */
+int reiserfs_xattr_set(struct inode *inode, const char *name,
+		       const void *buffer, size_t buffer_size, int flags)
 {
-	int err = __reiserfs_xattr_set(inode, name, buffer, buffer_size, flags);
-	if (err == -ENODATA)
-		err = 0;
-	return err;
+
+	struct reiserfs_transaction_handle th;
+	int error, error2;
+	size_t jbegin_count = reiserfs_xattr_nblocks(inode, buffer_size);
+
+	if (!(flags & XATTR_REPLACE))
+		jbegin_count += reiserfs_xattr_jcreate_nblocks(inode);
+
+	reiserfs_write_lock(inode->i_sb);
+	error = journal_begin(&th, inode->i_sb, jbegin_count);
+	if (error) {
+		reiserfs_write_unlock(inode->i_sb);
+		return error;
+	}
+
+	error = reiserfs_xattr_set_handle(&th, inode, name,
+					  buffer, buffer_size, flags);
+
+	error2 = journal_end(&th, inode->i_sb, jbegin_count);
+	if (error == 0)
+		error = error2;
+	reiserfs_write_unlock(inode->i_sb);
+
+	return error;
 }
 
 /*
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index bfecf7553002..d423416d93d1 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -10,15 +10,17 @@
 #include <linux/reiserfs_acl.h>
 #include <asm/uaccess.h>
 
-static int reiserfs_set_acl(struct inode *inode, int type,
+static int reiserfs_set_acl(struct reiserfs_transaction_handle *th,
+			    struct inode *inode, int type,
 			    struct posix_acl *acl);
 
 static int
 xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
 {
 	struct posix_acl *acl;
-	int error;
-
+	int error, error2;
+	struct reiserfs_transaction_handle th;
+	size_t jcreate_blocks;
 	if (!reiserfs_posixacl(inode->i_sb))
 		return -EOPNOTSUPP;
 	if (!is_owner_or_cap(inode))
@@ -36,7 +38,21 @@ xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
 	} else
 		acl = NULL;
 
-	error = reiserfs_set_acl(inode, type, acl);
+	/* Pessimism: We can't assume that anything from the xattr root up
+	 * has been created. */
+
+	jcreate_blocks = reiserfs_xattr_jcreate_nblocks(inode) +
+			 reiserfs_xattr_nblocks(inode, size) * 2;
+
+	reiserfs_write_lock(inode->i_sb);
+	error = journal_begin(&th, inode->i_sb, jcreate_blocks);
+	if (error == 0) {
+		error = reiserfs_set_acl(&th, inode, type, acl);
+		error2 = journal_end(&th, inode->i_sb, jcreate_blocks);
+		if (error2)
+			error = error2;
+	}
+	reiserfs_write_unlock(inode->i_sb);
 
       release_and_out:
 	posix_acl_release(acl);
@@ -266,7 +282,8 @@ struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
  * BKL held [before 2.5.x]
  */
 static int
-reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
+reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
+		 int type, struct posix_acl *acl)
 {
 	char *name;
 	void *value = NULL;
@@ -310,7 +327,7 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 			return (int)PTR_ERR(value);
 	}
 
-	error = __reiserfs_xattr_set(inode, name, value, size, 0);
+	error = reiserfs_xattr_set_handle(th, inode, name, value, size, 0);
 
 	/*
 	 * Ensure that the inode gets dirtied if we're only using
@@ -337,7 +354,8 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 /* dir->i_mutex: locked,
  * inode is new and not released into the wild yet */
 int
-reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
+reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
+			     struct inode *dir, struct dentry *dentry,
 			     struct inode *inode)
 {
 	struct posix_acl *acl;
@@ -374,7 +392,8 @@ reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
 
 		/* Copy the default ACL to the default ACL of a new directory */
 		if (S_ISDIR(inode->i_mode)) {
-			err = reiserfs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
+			err = reiserfs_set_acl(th, inode, ACL_TYPE_DEFAULT,
+					       acl);
 			if (err)
 				goto cleanup;
 		}
@@ -395,9 +414,9 @@ reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
 
 			/* If we need an ACL.. */
 			if (need_acl > 0) {
-				err =
-				    reiserfs_set_acl(inode, ACL_TYPE_ACCESS,
-						     acl_copy);
+				err = reiserfs_set_acl(th, inode,
+						       ACL_TYPE_ACCESS,
+						       acl_copy);
 				if (err)
 					goto cleanup_copy;
 			}
@@ -415,21 +434,45 @@ reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
 	return err;
 }
 
-/* Looks up and caches the result of the default ACL.
- * We do this so that we don't need to carry the xattr_sem into
- * reiserfs_new_inode if we don't need to */
+/* This is used to cache the default acl before a new object is created.
+ * The biggest reason for this is to get an idea of how many blocks will
+ * actually be required for the create operation if we must inherit an ACL.
+ * An ACL write can add up to 3 object creations and an additional file write
+ * so we'd prefer not to reserve that many blocks in the journal if we can.
+ * It also has the advantage of not loading the ACL with a transaction open,
+ * this may seem silly, but if the owner of the directory is doing the
+ * creation, the ACL may not be loaded since the permissions wouldn't require
+ * it.
+ * We return the number of blocks required for the transaction.
+ */
 int reiserfs_cache_default_acl(struct inode *inode)
 {
-	int ret = 0;
-	if (reiserfs_posixacl(inode->i_sb) && !IS_PRIVATE(inode)) {
-		struct posix_acl *acl;
-		acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT);
-		ret = (acl && !IS_ERR(acl));
-		if (ret)
-			posix_acl_release(acl);
+	struct posix_acl *acl;
+	int nblocks = 0;
+
+	if (IS_PRIVATE(inode))
+		return 0;
+
+	acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT);
+
+	if (acl && !IS_ERR(acl)) {
+		int size = reiserfs_acl_size(acl->a_count);
+
+		/* Other xattrs can be created during inode creation. We don't
+		 * want to claim too many blocks, so we check to see if we
+		 * we need to create the tree to the xattrs, and then we
+		 * just want two files. */
+		nblocks = reiserfs_xattr_jcreate_nblocks(inode);
+		nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
+
+		REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
+
+		/* We need to account for writes + bitmaps for two files */
+		nblocks += reiserfs_xattr_nblocks(inode, size) * 4;
+		posix_acl_release(acl);
 	}
 
-	return ret;
+	return nblocks;
 }
 
 int reiserfs_acl_chmod(struct inode *inode)
@@ -455,8 +498,22 @@ int reiserfs_acl_chmod(struct inode *inode)
 	if (!clone)
 		return -ENOMEM;
 	error = posix_acl_chmod_masq(clone, inode->i_mode);
-	if (!error)
-		error = reiserfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
+	if (!error) {
+		struct reiserfs_transaction_handle th;
+		size_t size = reiserfs_xattr_nblocks(inode,
+					     reiserfs_acl_size(clone->a_count));
+		reiserfs_write_lock(inode->i_sb);
+		error = journal_begin(&th, inode->i_sb, size * 2);
+		if (!error) {
+			int error2;
+			error = reiserfs_set_acl(&th, inode, ACL_TYPE_ACCESS,
+						 clone);
+			error2 = journal_end(&th, inode->i_sb, size * 2);
+			if (error2)
+				error = error2;
+		}
+		reiserfs_write_unlock(inode->i_sb);
+	}
 	posix_acl_release(clone);
 	return error;
 }
diff --git a/include/linux/reiserfs_acl.h b/include/linux/reiserfs_acl.h
index d180446470f2..52240e02de02 100644
--- a/include/linux/reiserfs_acl.h
+++ b/include/linux/reiserfs_acl.h
@@ -49,7 +49,8 @@ static inline int reiserfs_acl_count(size_t size)
 #ifdef CONFIG_REISERFS_FS_POSIX_ACL
 struct posix_acl *reiserfs_get_acl(struct inode *inode, int type);
 int reiserfs_acl_chmod(struct inode *inode);
-int reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
+int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
+				 struct inode *dir, struct dentry *dentry,
 				 struct inode *inode);
 int reiserfs_cache_default_acl(struct inode *dir);
 extern struct xattr_handler reiserfs_posix_acl_default_handler;
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index e00d240314c5..67ad310fa88b 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1615,6 +1615,10 @@ struct reiserfs_journal_header {
 #define JOURNAL_MAX_COMMIT_AGE 30
 #define JOURNAL_MAX_TRANS_AGE 30
 #define JOURNAL_PER_BALANCE_CNT (3 * (MAX_HEIGHT-2) + 9)
+#define JOURNAL_BLOCKS_PER_OBJECT(sb)  (JOURNAL_PER_BALANCE_CNT * 3 + \
+					 2 * (REISERFS_QUOTA_INIT_BLOCKS(sb) + \
+					      REISERFS_QUOTA_TRANS_BLOCKS(sb)))
+
 #ifdef CONFIG_QUOTA
 /* We need to update data and inode (atime) */
 #define REISERFS_QUOTA_TRANS_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? 2 : 0)
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 958fcaca0e8b..20eca09729a2 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -46,14 +46,50 @@ int reiserfs_removexattr(struct dentry *dentry, const char *name);
 int reiserfs_permission(struct inode *inode, int mask);
 
 int reiserfs_xattr_get(struct inode *, const char *, void *, size_t);
-int __reiserfs_xattr_set(struct inode *, const char *, const void *,
-			 size_t, int);
 int reiserfs_xattr_set(struct inode *, const char *, const void *, size_t, int);
+int reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *,
+			      struct inode *, const char *, const void *,
+			      size_t, int);
 
 extern struct xattr_handler reiserfs_xattr_user_handler;
 extern struct xattr_handler reiserfs_xattr_trusted_handler;
 extern struct xattr_handler reiserfs_xattr_security_handler;
 
+#define xattr_size(size) ((size) + sizeof(struct reiserfs_xattr_header))
+static inline loff_t reiserfs_xattr_nblocks(struct inode *inode, loff_t size)
+{
+	loff_t ret = 0;
+	if (reiserfs_file_data_log(inode)) {
+		ret = _ROUND_UP(xattr_size(size), inode->i_sb->s_blocksize);
+		ret >>= inode->i_sb->s_blocksize_bits;
+	}
+	return ret;
+}
+
+/* We may have to create up to 3 objects: xattr root, xattr dir, xattr file.
+ * Let's try to be smart about it.
+ * xattr root: We cache it. If it's not cached, we may need to create it.
+ * xattr dir: If anything has been loaded for this inode, we can set a flag
+ *            saying so.
+ * xattr file: Since we don't cache xattrs, we can't tell. We always include
+ *             blocks for it.
+ *
+ * However, since root and dir can be created between calls - YOU MUST SAVE
+ * THIS VALUE.
+ */
+static inline size_t reiserfs_xattr_jcreate_nblocks(struct inode *inode)
+{
+	size_t nblocks = JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
+
+	if ((REISERFS_I(inode)->i_flags & i_has_xattr_dir) == 0) {
+		nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
+		if (REISERFS_SB(inode->i_sb)->xattr_root == NULL)
+			nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
+	}
+
+	return nblocks;
+}
+
 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 {
 	init_rwsem(&REISERFS_I(inode)->i_xattr_sem);
-- 
cgit v1.2.3


From a41f1a4715f26f7bc4d047d0bc7710145c8e69c7 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:40 -0400
Subject: reiserfs: use generic readdir for operations across all xattrs

The current reiserfs xattr implementation open codes reiserfs_readdir
and frees the path before calling the filldir function.  Typically, the
filldir function is something that modifies the file system, such as a
chown or an inode deletion that also require reading of an inode
associated with each direntry.  Since the file system is modified, the
path retained becomes invalid for the next run.  In addition, it runs
backwards in attempt to minimize activity.

This is clearly suboptimal from a code cleanliness perspective as well
as performance-wise.

This patch implements a generic reiserfs_for_each_xattr that uses the
generic readdir and a specific filldir routine that simply populates an
array of dentries and then performs a specific operation on them.  When
all files have been operated on, it then calls the operation on the
directory itself.

The result is a noticable code reduction and better performance.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/dir.c           |  28 +--
 fs/reiserfs/xattr.c         | 402 +++++++++++++-------------------------------
 include/linux/reiserfs_fs.h |   1 +
 3 files changed, 131 insertions(+), 300 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index e6b03d2020c1..67a80d7e59e2 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -41,10 +41,10 @@ static int reiserfs_dir_fsync(struct file *filp, struct dentry *dentry,
 
 #define store_ih(where,what) copy_item_head (where, what)
 
-//
-static int reiserfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
+			   filldir_t filldir, loff_t *pos)
 {
-	struct inode *inode = filp->f_path.dentry->d_inode;
+	struct inode *inode = dentry->d_inode;
 	struct cpu_key pos_key;	/* key of current position in the directory (key of directory entry) */
 	INITIALIZE_PATH(path_to_entry);
 	struct buffer_head *bh;
@@ -64,13 +64,9 @@ static int reiserfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 
 	/* form key for search the next directory entry using f_pos field of
 	   file structure */
-	make_cpu_key(&pos_key, inode,
-		     (filp->f_pos) ? (filp->f_pos) : DOT_OFFSET, TYPE_DIRENTRY,
-		     3);
+	make_cpu_key(&pos_key, inode, *pos ?: DOT_OFFSET, TYPE_DIRENTRY, 3);
 	next_pos = cpu_key_k_offset(&pos_key);
 
-	/*  reiserfs_warning (inode->i_sb, "reiserfs_readdir 1: f_pos = %Ld", filp->f_pos); */
-
 	path_to_entry.reada = PATH_READA;
 	while (1) {
 	      research:
@@ -144,7 +140,7 @@ static int reiserfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 				/* Ignore the .reiserfs_priv entry */
 				if (reiserfs_xattrs(inode->i_sb) &&
 				    !old_format_only(inode->i_sb) &&
-				    filp->f_path.dentry == inode->i_sb->s_root &&
+				    dentry == inode->i_sb->s_root &&
 				    REISERFS_SB(inode->i_sb)->priv_root &&
 				    REISERFS_SB(inode->i_sb)->priv_root->d_inode
 				    && deh_objectid(deh) ==
@@ -156,7 +152,7 @@ static int reiserfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 				}
 
 				d_off = deh_offset(deh);
-				filp->f_pos = d_off;
+				*pos = d_off;
 				d_ino = deh_objectid(deh);
 				if (d_reclen <= 32) {
 					local_buf = small_buf;
@@ -223,15 +219,21 @@ static int reiserfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 
 	}			/* while */
 
-      end:
-	filp->f_pos = next_pos;
+end:
+	*pos = next_pos;
 	pathrelse(&path_to_entry);
 	reiserfs_check_path(&path_to_entry);
-      out:
+out:
 	reiserfs_write_unlock(inode->i_sb);
 	return ret;
 }
 
+static int reiserfs_readdir(struct file *file, void *dirent, filldir_t filldir)
+{
+	struct dentry *dentry = file->f_path.dentry;
+	return reiserfs_readdir_dentry(dentry, dirent, filldir, &file->f_pos);
+}
+
 /* compose directory item containing "." and ".." entries (entries are
    not aligned to 4 byte boundary) */
 /* the last four params are LE */
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index c2e3a92aaf2b..1baafec64331 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -167,218 +167,65 @@ static struct dentry *open_xa_dir(const struct inode *inode, int flags)
 
 }
 
-/*
- * this is very similar to fs/reiserfs/dir.c:reiserfs_readdir, but
- * we need to drop the path before calling the filldir struct.  That
- * would be a big performance hit to the non-xattr case, so I've copied
- * the whole thing for now. --clm
- *
- * the big difference is that I go backwards through the directory,
- * and don't mess with f->f_pos, but the idea is the same.  Do some
- * action on each and every entry in the directory.
- *
- * we're called with i_mutex held, so there are no worries about the directory
- * changing underneath us.
- */
-static int __xattr_readdir(struct inode *inode, void *dirent, filldir_t filldir)
-{
-	struct cpu_key pos_key;	/* key of current position in the directory (key of directory entry) */
-	INITIALIZE_PATH(path_to_entry);
-	struct buffer_head *bh;
-	int entry_num;
-	struct item_head *ih, tmp_ih;
-	int search_res;
-	char *local_buf;
-	loff_t next_pos;
-	char small_buf[32];	/* avoid kmalloc if we can */
-	struct reiserfs_de_head *deh;
-	int d_reclen;
-	char *d_name;
-	off_t d_off;
-	ino_t d_ino;
-	struct reiserfs_dir_entry de;
-
-	/* form key for search the next directory entry using f_pos field of
-	   file structure */
-	next_pos = max_reiserfs_offset(inode);
-
-	while (1) {
-	      research:
-		if (next_pos <= DOT_DOT_OFFSET)
-			break;
-		make_cpu_key(&pos_key, inode, next_pos, TYPE_DIRENTRY, 3);
-
-		search_res =
-		    search_by_entry_key(inode->i_sb, &pos_key, &path_to_entry,
-					&de);
-		if (search_res == IO_ERROR) {
-			// FIXME: we could just skip part of directory which could
-			// not be read
-			pathrelse(&path_to_entry);
-			return -EIO;
-		}
-
-		if (search_res == NAME_NOT_FOUND)
-			de.de_entry_num--;
-
-		set_de_name_and_namelen(&de);
-		entry_num = de.de_entry_num;
-		deh = &(de.de_deh[entry_num]);
-
-		bh = de.de_bh;
-		ih = de.de_ih;
-
-		if (!is_direntry_le_ih(ih)) {
-			reiserfs_error(inode->i_sb, "jdm-20000",
-				       "not direntry %h", ih);
-			break;
-		}
-		copy_item_head(&tmp_ih, ih);
-
-		/* we must have found item, that is item of this directory, */
-		RFALSE(COMP_SHORT_KEYS(&(ih->ih_key), &pos_key),
-		       "vs-9000: found item %h does not match to dir we readdir %K",
-		       ih, &pos_key);
-
-		if (deh_offset(deh) <= DOT_DOT_OFFSET) {
-			break;
-		}
-
-		/* look for the previous entry in the directory */
-		next_pos = deh_offset(deh) - 1;
-
-		if (!de_visible(deh))
-			/* it is hidden entry */
-			continue;
-
-		d_reclen = entry_length(bh, ih, entry_num);
-		d_name = B_I_DEH_ENTRY_FILE_NAME(bh, ih, deh);
-		d_off = deh_offset(deh);
-		d_ino = deh_objectid(deh);
-
-		if (!d_name[d_reclen - 1])
-			d_reclen = strlen(d_name);
-
-		if (d_reclen > REISERFS_MAX_NAME(inode->i_sb->s_blocksize)) {
-			/* too big to send back to VFS */
-			continue;
-		}
-
-		/* Ignore the .reiserfs_priv entry */
-		if (reiserfs_xattrs(inode->i_sb) &&
-		    !old_format_only(inode->i_sb) &&
-		    deh_objectid(deh) ==
-		    le32_to_cpu(INODE_PKEY
-				(REISERFS_SB(inode->i_sb)->priv_root->d_inode)->
-				k_objectid))
-			continue;
-
-		if (d_reclen <= 32) {
-			local_buf = small_buf;
-		} else {
-			local_buf = kmalloc(d_reclen, GFP_NOFS);
-			if (!local_buf) {
-				pathrelse(&path_to_entry);
-				return -ENOMEM;
-			}
-			if (item_moved(&tmp_ih, &path_to_entry)) {
-				kfree(local_buf);
-
-				/* sigh, must retry.  Do this same offset again */
-				next_pos = d_off;
-				goto research;
-			}
-		}
-
-		// Note, that we copy name to user space via temporary
-		// buffer (local_buf) because filldir will block if
-		// user space buffer is swapped out. At that time
-		// entry can move to somewhere else
-		memcpy(local_buf, d_name, d_reclen);
-
-		/* the filldir function might need to start transactions,
-		 * or do who knows what.  Release the path now that we've
-		 * copied all the important stuff out of the deh
-		 */
-		pathrelse(&path_to_entry);
-
-		if (filldir(dirent, local_buf, d_reclen, d_off, d_ino,
-			    DT_UNKNOWN) < 0) {
-			if (local_buf != small_buf) {
-				kfree(local_buf);
-			}
-			goto end;
-		}
-		if (local_buf != small_buf) {
-			kfree(local_buf);
-		}
-	}			/* while */
-
-      end:
-	pathrelse(&path_to_entry);
-	return 0;
-}
-
-/*
- * this could be done with dedicated readdir ops for the xattr files,
- * but I want to get something working asap
- * this is stolen from vfs_readdir
- *
- */
-static
-int xattr_readdir(struct inode *inode, filldir_t filler, void *buf)
-{
-	int res = -ENOENT;
-	if (!IS_DEADDIR(inode)) {
-		lock_kernel();
-		res = __xattr_readdir(inode, buf, filler);
-		unlock_kernel();
-	}
-	return res;
-}
-
 /* The following are side effects of other operations that aren't explicitly
  * modifying extended attributes. This includes operations such as permissions
  * or ownership changes, object deletions, etc. */
+struct reiserfs_dentry_buf {
+	struct dentry *xadir;
+	int count;
+	struct dentry *dentries[8];
+};
 
 static int
-reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
-			      loff_t offset, u64 ino, unsigned int d_type)
+fill_with_dentries(void *buf, const char *name, int namelen, loff_t offset,
+		    u64 ino, unsigned int d_type)
 {
-	struct dentry *xadir = (struct dentry *)buf;
+	struct reiserfs_dentry_buf *dbuf = buf;
 	struct dentry *dentry;
-	int err = 0;
 
-	dentry = lookup_one_len(name, xadir, namelen);
+	if (dbuf->count == ARRAY_SIZE(dbuf->dentries))
+		return -ENOSPC;
+
+	if (name[0] == '.' && (name[1] == '\0' ||
+			       (name[1] == '.' && name[2] == '\0')))
+		return 0;
+
+	dentry = lookup_one_len(name, dbuf->xadir, namelen);
 	if (IS_ERR(dentry)) {
-		err = PTR_ERR(dentry);
-		goto out;
+		return PTR_ERR(dentry);
 	} else if (!dentry->d_inode) {
-		err = -ENODATA;
-		goto out_file;
+		/* A directory entry exists, but no file? */
+		reiserfs_error(dentry->d_sb, "xattr-20003",
+			       "Corrupted directory: xattr %s listed but "
+			       "not found for file %s.\n",
+			       dentry->d_name.name, dbuf->xadir->d_name.name);
+		dput(dentry);
+		return -EIO;
 	}
 
-	/* Skip directories.. */
-	if (S_ISDIR(dentry->d_inode->i_mode))
-		goto out_file;
-
-	err = xattr_unlink(xadir->d_inode, dentry);
-
-out_file:
-	dput(dentry);
+	dbuf->dentries[dbuf->count++] = dentry;
+	return 0;
+}
 
-out:
-	return err;
+static void
+cleanup_dentry_buf(struct reiserfs_dentry_buf *buf)
+{
+	int i;
+	for (i = 0; i < buf->count; i++)
+		if (buf->dentries[i])
+			dput(buf->dentries[i]);
 }
 
-/* This is called w/ inode->i_mutex downed */
-int reiserfs_delete_xattrs(struct inode *inode)
+static int reiserfs_for_each_xattr(struct inode *inode,
+				   int (*action)(struct dentry *, void *),
+				   void *data)
 {
-	int err = -ENODATA;
-	struct dentry *dir, *root;
-	struct reiserfs_transaction_handle th;
-	int blocks = JOURNAL_PER_BALANCE_CNT * 2 + 2 +
-		     4 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb);
+	struct dentry *dir;
+	int i, err = 0;
+	loff_t pos = 0;
+	struct reiserfs_dentry_buf buf = {
+		.count = 0,
+	};
 
 	/* Skip out, an xattr has no xattrs associated with it */
 	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1)
@@ -389,117 +236,97 @@ int reiserfs_delete_xattrs(struct inode *inode)
 		err = PTR_ERR(dir);
 		goto out;
 	} else if (!dir->d_inode) {
-		dput(dir);
-		goto out;
+		err = 0;
+		goto out_dir;
 	}
 
 	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR);
-	err = xattr_readdir(dir->d_inode, reiserfs_delete_xattrs_filler, dir);
-	mutex_unlock(&dir->d_inode->i_mutex);
-	if (err) {
-		dput(dir);
-		goto out;
+	buf.xadir = dir;
+	err = reiserfs_readdir_dentry(dir, &buf, fill_with_dentries, &pos);
+	while ((err == 0 || err == -ENOSPC) && buf.count) {
+		err = 0;
+
+		for (i = 0; i < buf.count && buf.dentries[i]; i++) {
+			int lerr = 0;
+			struct dentry *dentry = buf.dentries[i];
+
+			if (err == 0 && !S_ISDIR(dentry->d_inode->i_mode))
+				lerr = action(dentry, data);
+
+			dput(dentry);
+			buf.dentries[i] = NULL;
+			err = lerr ?: err;
+		}
+		buf.count = 0;
+		if (!err)
+			err = reiserfs_readdir_dentry(dir, &buf,
+						      fill_with_dentries, &pos);
 	}
+	mutex_unlock(&dir->d_inode->i_mutex);
 
-	root = dget(dir->d_parent);
-	dput(dir);
+	/* Clean up after a failed readdir */
+	cleanup_dentry_buf(&buf);
 
-	/* We start a transaction here to avoid a ABBA situation
-	 * between the xattr root's i_mutex and the journal lock.
-	 * Inode creation will inherit an ACL, which requires a
-	 * lookup. The lookup locks the xattr root i_mutex with a
-	 * transaction open.  Inode deletion takes teh xattr root
-	 * i_mutex to delete the directory and then starts a
-	 * transaction inside it. Boom. This doesn't incur much
-	 * additional overhead since the reiserfs_rmdir transaction
-	 * will just nest inside the outer transaction. */
-	err = journal_begin(&th, inode->i_sb, blocks);
 	if (!err) {
-		int jerror;
-		mutex_lock_nested(&root->d_inode->i_mutex, I_MUTEX_XATTR);
-		err = xattr_rmdir(root->d_inode, dir);
-		jerror = journal_end(&th, inode->i_sb, blocks);
-		mutex_unlock(&root->d_inode->i_mutex);
-		err = jerror ?: err;
+		/* We start a transaction here to avoid a ABBA situation
+		 * between the xattr root's i_mutex and the journal lock.
+		 * This doesn't incur much additional overhead since the
+		 * new transaction will just nest inside the
+		 * outer transaction. */
+		int blocks = JOURNAL_PER_BALANCE_CNT * 2 + 2 +
+			     4 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb);
+		struct reiserfs_transaction_handle th;
+		err = journal_begin(&th, inode->i_sb, blocks);
+		if (!err) {
+			int jerror;
+			mutex_lock_nested(&dir->d_parent->d_inode->i_mutex,
+					  I_MUTEX_XATTR);
+			err = action(dir, data);
+			jerror = journal_end(&th, inode->i_sb, blocks);
+			mutex_unlock(&dir->d_parent->d_inode->i_mutex);
+			err = jerror ?: err;
+		}
 	}
-
-	dput(root);
+out_dir:
+	dput(dir);
 out:
-	if (err)
-		reiserfs_warning(inode->i_sb, "jdm-20004",
-				 "Couldn't remove all xattrs (%d)\n", err);
+	/* -ENODATA isn't an error */
+	if (err == -ENODATA)
+		err = 0;
 	return err;
 }
 
-struct reiserfs_chown_buf {
-	struct inode *inode;
-	struct dentry *xadir;
-	struct iattr *attrs;
-};
-
-/* XXX: If there is a better way to do this, I'd love to hear about it */
-static int
-reiserfs_chown_xattrs_filler(void *buf, const char *name, int namelen,
-			     loff_t offset, u64 ino, unsigned int d_type)
+static int delete_one_xattr(struct dentry *dentry, void *data)
 {
-	struct reiserfs_chown_buf *chown_buf = (struct reiserfs_chown_buf *)buf;
-	struct dentry *xafile, *xadir = chown_buf->xadir;
-	struct iattr *attrs = chown_buf->attrs;
-	int err = 0;
+	struct inode *dir = dentry->d_parent->d_inode;
 
-	xafile = lookup_one_len(name, xadir, namelen);
-	if (IS_ERR(xafile))
-		return PTR_ERR(xafile);
-	else if (!xafile->d_inode) {
-		dput(xafile);
-		return -ENODATA;
-	}
+	/* This is the xattr dir, handle specially. */
+	if (S_ISDIR(dentry->d_inode->i_mode))
+		return xattr_rmdir(dir, dentry);
 
-	if (!S_ISDIR(xafile->d_inode->i_mode)) {
-		mutex_lock_nested(&xafile->d_inode->i_mutex, I_MUTEX_CHILD);
-		err = reiserfs_setattr(xafile, attrs);
-		mutex_unlock(&xafile->d_inode->i_mutex);
-	}
-	dput(xafile);
+	return xattr_unlink(dir, dentry);
+}
+
+static int chown_one_xattr(struct dentry *dentry, void *data)
+{
+	struct iattr *attrs = data;
+	return reiserfs_setattr(dentry, attrs);
+}
 
+/* No i_mutex, but the inode is unconnected. */
+int reiserfs_delete_xattrs(struct inode *inode)
+{
+	int err = reiserfs_for_each_xattr(inode, delete_one_xattr, NULL);
+	if (err)
+		reiserfs_warning(inode->i_sb, "jdm-20004",
+				 "Couldn't delete all xattrs (%d)\n", err);
 	return err;
 }
 
+/* inode->i_mutex: down */
 int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
 {
-	struct dentry *dir;
-	int err = 0;
-	struct reiserfs_chown_buf buf;
-	unsigned int ia_valid = attrs->ia_valid;
-
-	/* Skip out, an xattr has no xattrs associated with it */
-	if (IS_PRIVATE(inode) || get_inode_sd_version(inode) == STAT_DATA_V1)
-		return 0;
-
-	dir = open_xa_dir(inode, XATTR_REPLACE);
-	if (IS_ERR(dir)) {
-		if (PTR_ERR(dir) != -ENODATA)
-			err = PTR_ERR(dir);
-		goto out;
-	} else if (!dir->d_inode)
-		goto out_dir;
-
-	attrs->ia_valid &= (ATTR_UID | ATTR_GID | ATTR_CTIME);
-	buf.xadir = dir;
-	buf.attrs = attrs;
-	buf.inode = inode;
-
-	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR);
-	err = xattr_readdir(dir->d_inode, reiserfs_chown_xattrs_filler, &buf);
-
-	if (!err)
-		err = reiserfs_setattr(dir, attrs);
-	mutex_unlock(&dir->d_inode->i_mutex);
-
-	attrs->ia_valid = ia_valid;
-out_dir:
-	dput(dir);
-out:
+	int err = reiserfs_for_each_xattr(inode, chown_one_xattr, attrs);
 	if (err)
 		reiserfs_warning(inode->i_sb, "jdm-20007",
 				 "Couldn't chown all xattrs (%d)\n", err);
@@ -1004,6 +831,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 {
 	struct dentry *dir;
 	int err = 0;
+	loff_t pos = 0;
 	struct listxattr_buf buf = {
 		.inode = dentry->d_inode,
 		.buf = buffer,
@@ -1026,7 +854,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
 	}
 
 	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR);
-	err = xattr_readdir(dir->d_inode, listxattr_filler, &buf);
+	err = reiserfs_readdir_dentry(dir, &buf, listxattr_filler, &pos);
 	mutex_unlock(&dir->d_inode->i_mutex);
 
 	if (!err)
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 67ad310fa88b..c0365e07fce6 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1984,6 +1984,7 @@ extern const struct inode_operations reiserfs_dir_inode_operations;
 extern const struct inode_operations reiserfs_symlink_inode_operations;
 extern const struct inode_operations reiserfs_special_inode_operations;
 extern const struct file_operations reiserfs_dir_operations;
+int reiserfs_readdir_dentry(struct dentry *, void *, filldir_t, loff_t *);
 
 /* tail_conversion.c */
 int direct2indirect(struct reiserfs_transaction_handle *, struct inode *,
-- 
cgit v1.2.3


From 57fe60df62410f949da094d06ced1dda9575b69c Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:41 -0400
Subject: reiserfs: add atomic addition of selinux attributes during inode
 creation

Some time ago, some changes were made to make security inode attributes
be atomically written during inode creation.  ReiserFS fell behind in
this area, but with the reworking of the xattr code, it's now fairly
easy to add.

The following patch adds the ability for security attributes to be added
automatically during inode creation.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/inode.c            | 16 ++++++++++++-
 fs/reiserfs/namei.c            | 37 +++++++++++++++++++++++++----
 fs/reiserfs/xattr_security.c   | 54 ++++++++++++++++++++++++++++++++++++++++++
 include/linux/reiserfs_fs.h    |  4 +++-
 include/linux/reiserfs_xattr.h | 32 +++++++++++++++++++++++++
 5 files changed, 137 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 995f6975cae1..fcd302d81447 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1747,7 +1747,8 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 		       /* 0 for regular, EMTRY_DIR_SIZE for dirs, 
 		          strlen (symname) for symlinks) */
 		       loff_t i_size, struct dentry *dentry,
-		       struct inode *inode)
+		       struct inode *inode,
+		       struct reiserfs_security_handle *security)
 {
 	struct super_block *sb;
 	struct reiserfs_iget_args args;
@@ -1929,6 +1930,19 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 	} else if (IS_PRIVATE(dir))
 		inode->i_flags |= S_PRIVATE;
 
+	if (security->name) {
+		retval = reiserfs_security_write(th, inode, security);
+		if (retval) {
+			err = retval;
+			reiserfs_check_path(&path_to_key);
+			retval = journal_end(th, th->t_super,
+					     th->t_blocks_allocated);
+			if (retval)
+				err = retval;
+			goto out_inserted_sd;
+		}
+	}
+
 	reiserfs_update_sd(th, inode);
 	reiserfs_check_path(&path_to_key);
 
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index d9c1c8bd2950..cb1a9e977907 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -598,6 +598,7 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
 	    2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
 		 REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
 	struct reiserfs_transaction_handle th;
+	struct reiserfs_security_handle security;
 
 	if (!(inode = new_inode(dir->i_sb))) {
 		return -ENOMEM;
@@ -605,6 +606,12 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
 	new_inode_init(inode, dir, mode);
 
 	jbegin_count += reiserfs_cache_default_acl(dir);
+	retval = reiserfs_security_init(dir, inode, &security);
+	if (retval < 0) {
+		drop_new_inode(inode);
+		return retval;
+	}
+	jbegin_count += retval;
 	reiserfs_write_lock(dir->i_sb);
 
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
@@ -615,7 +622,7 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
 
 	retval =
 	    reiserfs_new_inode(&th, dir, mode, NULL, 0 /*i_size */ , dentry,
-			       inode);
+			       inode, &security);
 	if (retval)
 		goto out_failed;
 
@@ -655,6 +662,7 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 	int retval;
 	struct inode *inode;
 	struct reiserfs_transaction_handle th;
+	struct reiserfs_security_handle security;
 	/* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
 	int jbegin_count =
 	    JOURNAL_PER_BALANCE_CNT * 3 +
@@ -670,6 +678,12 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 	new_inode_init(inode, dir, mode);
 
 	jbegin_count += reiserfs_cache_default_acl(dir);
+	retval = reiserfs_security_init(dir, inode, &security);
+	if (retval < 0) {
+		drop_new_inode(inode);
+		return retval;
+	}
+	jbegin_count += retval;
 	reiserfs_write_lock(dir->i_sb);
 
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
@@ -680,7 +694,7 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 
 	retval =
 	    reiserfs_new_inode(&th, dir, mode, NULL, 0 /*i_size */ , dentry,
-			       inode);
+			       inode, &security);
 	if (retval) {
 		goto out_failed;
 	}
@@ -723,6 +737,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	int retval;
 	struct inode *inode;
 	struct reiserfs_transaction_handle th;
+	struct reiserfs_security_handle security;
 	/* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
 	int jbegin_count =
 	    JOURNAL_PER_BALANCE_CNT * 3 +
@@ -740,6 +755,12 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	new_inode_init(inode, dir, mode);
 
 	jbegin_count += reiserfs_cache_default_acl(dir);
+	retval = reiserfs_security_init(dir, inode, &security);
+	if (retval < 0) {
+		drop_new_inode(inode);
+		return retval;
+	}
+	jbegin_count += retval;
 	reiserfs_write_lock(dir->i_sb);
 
 	retval = journal_begin(&th, dir->i_sb, jbegin_count);
@@ -756,7 +777,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	    retval = reiserfs_new_inode(&th, dir, mode, NULL /*symlink */ ,
 					old_format_only(dir->i_sb) ?
 					EMPTY_DIR_SIZE_V1 : EMPTY_DIR_SIZE,
-					dentry, inode);
+					dentry, inode, &security);
 	if (retval) {
 		dir->i_nlink--;
 		goto out_failed;
@@ -999,6 +1020,7 @@ static int reiserfs_symlink(struct inode *parent_dir,
 	char *name;
 	int item_len;
 	struct reiserfs_transaction_handle th;
+	struct reiserfs_security_handle security;
 	int mode = S_IFLNK | S_IRWXUGO;
 	/* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
 	int jbegin_count =
@@ -1011,6 +1033,13 @@ static int reiserfs_symlink(struct inode *parent_dir,
 	}
 	new_inode_init(inode, parent_dir, mode);
 
+	retval = reiserfs_security_init(parent_dir, inode, &security);
+	if (retval < 0) {
+		drop_new_inode(inode);
+		return retval;
+	}
+	jbegin_count += retval;
+
 	reiserfs_write_lock(parent_dir->i_sb);
 	item_len = ROUND_UP(strlen(symname));
 	if (item_len > MAX_DIRECT_ITEM_LEN(parent_dir->i_sb->s_blocksize)) {
@@ -1037,7 +1066,7 @@ static int reiserfs_symlink(struct inode *parent_dir,
 
 	retval =
 	    reiserfs_new_inode(&th, parent_dir, mode, name, strlen(symname),
-			       dentry, inode);
+			       dentry, inode, &security);
 	kfree(name);
 	if (retval) {		/* reiserfs_new_inode iputs for us */
 		goto out_failed;
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c
index 2aacf1fe69fd..4d3c20e787c3 100644
--- a/fs/reiserfs/xattr_security.c
+++ b/fs/reiserfs/xattr_security.c
@@ -4,6 +4,7 @@
 #include <linux/pagemap.h>
 #include <linux/xattr.h>
 #include <linux/reiserfs_xattr.h>
+#include <linux/security.h>
 #include <asm/uaccess.h>
 
 static int
@@ -47,6 +48,59 @@ static size_t security_list(struct inode *inode, char *list, size_t list_len,
 	return len;
 }
 
+/* Initializes the security context for a new inode and returns the number
+ * of blocks needed for the transaction. If successful, reiserfs_security
+ * must be released using reiserfs_security_free when the caller is done. */
+int reiserfs_security_init(struct inode *dir, struct inode *inode,
+			   struct reiserfs_security_handle *sec)
+{
+	int blocks = 0;
+	int error = security_inode_init_security(inode, dir, &sec->name,
+						 &sec->value, &sec->length);
+	if (error) {
+		if (error == -EOPNOTSUPP)
+			error = 0;
+
+		sec->name = NULL;
+		sec->value = NULL;
+		sec->length = 0;
+		return error;
+	}
+
+	if (sec->length) {
+		blocks = reiserfs_xattr_jcreate_nblocks(inode) +
+			 reiserfs_xattr_nblocks(inode, sec->length);
+		/* We don't want to count the directories twice if we have
+		 * a default ACL. */
+		REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
+	}
+	return blocks;
+}
+
+int reiserfs_security_write(struct reiserfs_transaction_handle *th,
+			    struct inode *inode,
+			    struct reiserfs_security_handle *sec)
+{
+	int error;
+	if (strlen(sec->name) < sizeof(XATTR_SECURITY_PREFIX))
+		return -EINVAL;
+
+	error = reiserfs_xattr_set_handle(th, inode, sec->name, sec->value,
+					  sec->length, XATTR_CREATE);
+	if (error == -ENODATA || error == -EOPNOTSUPP)
+		error = 0;
+
+	return error;
+}
+
+void reiserfs_security_free(struct reiserfs_security_handle *sec)
+{
+	kfree(sec->name);
+	kfree(sec->value);
+	sec->name = NULL;
+	sec->value = NULL;
+}
+
 struct xattr_handler reiserfs_xattr_security_handler = {
 	.prefix = XATTR_SECURITY_PREFIX,
 	.get = security_get,
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index c0365e07fce6..eb4e912e6bd3 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1915,10 +1915,12 @@ void make_le_item_head(struct item_head *ih, const struct cpu_key *key,
 		       loff_t offset, int type, int length, int entry_count);
 struct inode *reiserfs_iget(struct super_block *s, const struct cpu_key *key);
 
+struct reiserfs_security_handle;
 int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 		       struct inode *dir, int mode,
 		       const char *symname, loff_t i_size,
-		       struct dentry *dentry, struct inode *inode);
+		       struct dentry *dentry, struct inode *inode,
+		       struct reiserfs_security_handle *security);
 
 void reiserfs_update_sd_size(struct reiserfs_transaction_handle *th,
 			     struct inode *inode, loff_t size);
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 20eca09729a2..dcae01e63e40 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -15,6 +15,12 @@ struct reiserfs_xattr_header {
 	__le32 h_hash;		/* hash of the value */
 };
 
+struct reiserfs_security_handle {
+	char *name;
+	void *value;
+	size_t length;
+};
+
 #ifdef __KERNEL__
 
 #include <linux/init.h>
@@ -54,6 +60,14 @@ int reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *,
 extern struct xattr_handler reiserfs_xattr_user_handler;
 extern struct xattr_handler reiserfs_xattr_trusted_handler;
 extern struct xattr_handler reiserfs_xattr_security_handler;
+#ifdef CONFIG_REISERFS_FS_SECURITY
+int reiserfs_security_init(struct inode *dir, struct inode *inode,
+			   struct reiserfs_security_handle *sec);
+int reiserfs_security_write(struct reiserfs_transaction_handle *th,
+			    struct inode *inode,
+			    struct reiserfs_security_handle *sec);
+void reiserfs_security_free(struct reiserfs_security_handle *sec);
+#endif
 
 #define xattr_size(size) ((size) + sizeof(struct reiserfs_xattr_header))
 static inline loff_t reiserfs_xattr_nblocks(struct inode *inode, loff_t size)
@@ -109,6 +123,24 @@ static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 }
 #endif  /*  CONFIG_REISERFS_FS_XATTR  */
 
+#ifndef CONFIG_REISERFS_FS_SECURITY
+static inline int reiserfs_security_init(struct inode *dir,
+					 struct inode *inode,
+					 struct reiserfs_security_handle *sec)
+{
+	return 0;
+}
+static inline int
+reiserfs_security_write(struct reiserfs_transaction_handle *th,
+			struct inode *inode,
+			struct reiserfs_security_handle *sec)
+{
+	return 0;
+}
+static inline void reiserfs_security_free(struct reiserfs_security_handle *sec)
+{}
+#endif
+
 #endif  /*  __KERNEL__  */
 
 #endif  /*  _LINUX_REISERFS_XATTR_H  */
-- 
cgit v1.2.3


From 0222e6571c332563a48d4cf5487b67feabe60b5e Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:44 -0400
Subject: reiserfs: strip trailing whitespace

This patch strips trailing whitespace from the reiserfs code.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/README             |   4 +-
 fs/reiserfs/do_balan.c         |  14 ++---
 fs/reiserfs/file.c             |   8 +--
 fs/reiserfs/fix_node.c         |  38 ++++++-------
 fs/reiserfs/hashes.c           |   2 +-
 fs/reiserfs/ibalance.c         |  10 ++--
 fs/reiserfs/inode.c            |  52 +++++++++---------
 fs/reiserfs/ioctl.c            |   2 +-
 fs/reiserfs/journal.c          | 120 ++++++++++++++++++++---------------------
 fs/reiserfs/lbalance.c         |  18 +++----
 fs/reiserfs/namei.c            |  30 +++++------
 fs/reiserfs/objectid.c         |   2 +-
 fs/reiserfs/prints.c           |  26 ++++-----
 fs/reiserfs/procfs.c           |   2 +-
 fs/reiserfs/resize.c           |   6 +--
 fs/reiserfs/stree.c            |   8 +--
 fs/reiserfs/super.c            |  10 ++--
 fs/reiserfs/tail_conversion.c  |   2 +-
 include/linux/reiserfs_fs_sb.h |  14 ++---
 19 files changed, 184 insertions(+), 184 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/README b/fs/reiserfs/README
index 90e1670e4e6f..14e8c9d460e5 100644
--- a/fs/reiserfs/README
+++ b/fs/reiserfs/README
@@ -1,4 +1,4 @@
-[LICENSING] 
+[LICENSING]
 
 ReiserFS is hereby licensed under the GNU General
 Public License version 2.
@@ -31,7 +31,7 @@ the GPL as not allowing those additional licensing options, you read
 it wrongly, and Richard Stallman agrees with me, when carefully read
 you can see that those restrictions on additional terms do not apply
 to the owner of the copyright, and my interpretation of this shall
-govern for this license.  
+govern for this license.
 
 Finally, nothing in this license shall be interpreted to allow you to
 fail to fairly credit me, or to remove my credits, without my
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 723a7f4011d0..4beb964a2a3e 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -76,21 +76,21 @@ inline void do_balance_mark_leaf_dirty(struct tree_balance *tb,
 #define do_balance_mark_internal_dirty do_balance_mark_leaf_dirty
 #define do_balance_mark_sb_dirty do_balance_mark_leaf_dirty
 
-/* summary: 
+/* summary:
  if deleting something ( tb->insert_size[0] < 0 )
    return(balance_leaf_when_delete()); (flag d handled here)
  else
    if lnum is larger than 0 we put items into the left node
    if rnum is larger than 0 we put items into the right node
    if snum1 is larger than 0 we put items into the new node s1
-   if snum2 is larger than 0 we put items into the new node s2 
+   if snum2 is larger than 0 we put items into the new node s2
 Note that all *num* count new items being created.
 
 It would be easier to read balance_leaf() if each of these summary
 lines was a separate procedure rather than being inlined.  I think
 that there are many passages here and in balance_leaf_when_delete() in
 which two calls to one procedure can replace two passages, and it
-might save cache space and improve software maintenance costs to do so.  
+might save cache space and improve software maintenance costs to do so.
 
 Vladimir made the perceptive comment that we should offload most of
 the decision making in this function into fix_nodes/check_balance, and
@@ -288,15 +288,15 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih,	/* item h
     )
 {
 	struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
-	int item_pos = PATH_LAST_POSITION(tb->tb_path);	/*  index into the array of item headers in S[0] 
+	int item_pos = PATH_LAST_POSITION(tb->tb_path);	/*  index into the array of item headers in S[0]
 							   of the affected item */
 	struct buffer_info bi;
 	struct buffer_head *S_new[2];	/* new nodes allocated to hold what could not fit into S */
 	int snum[2];		/* number of items that will be placed
 				   into S_new (includes partially shifted
 				   items) */
-	int sbytes[2];		/* if an item is partially shifted into S_new then 
-				   if it is a directory item 
+	int sbytes[2];		/* if an item is partially shifted into S_new then
+				   if it is a directory item
 				   it is the number of entries from the item that are shifted into S_new
 				   else
 				   it is the number of bytes from the item that are shifted into S_new
@@ -1983,7 +1983,7 @@ static inline void do_balance_starts(struct tree_balance *tb)
 	/* store_print_tb (tb); */
 
 	/* do not delete, just comment it out */
-/*    print_tb(flag, PATH_LAST_POSITION(tb->tb_path), tb->tb_path->pos_in_item, tb, 
+/*    print_tb(flag, PATH_LAST_POSITION(tb->tb_path), tb->tb_path->pos_in_item, tb,
 	     "check");*/
 	RFALSE(check_before_balancing(tb), "PAP-12340: locked buffers in TB");
 #ifdef CONFIG_REISERFS_CHECK
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 47bab8978be1..f0160ee03e17 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -20,14 +20,14 @@
 ** insertion/balancing, for files that are written in one write.
 ** It avoids unnecessary tail packings (balances) for files that are written in
 ** multiple writes and are small enough to have tails.
-** 
+**
 ** file_release is called by the VFS layer when the file is closed.  If
 ** this is the last open file descriptor, and the file
 ** small enough to have a tail, and the tail is currently in an
 ** unformatted node, the tail is converted back into a direct item.
-** 
+**
 ** We use reiserfs_truncate_file to pack the tail, since it already has
-** all the conditions coded.  
+** all the conditions coded.
 */
 static int reiserfs_file_release(struct inode *inode, struct file *filp)
 {
@@ -223,7 +223,7 @@ int reiserfs_commit_page(struct inode *inode, struct page *page,
 }
 
 /* Write @count bytes at position @ppos in a file indicated by @file
-   from the buffer @buf.  
+   from the buffer @buf.
 
    generic_file_write() is only appropriate for filesystems that are not seeking to optimize performance and want
    something simple that works.  It is not for serious use by general purpose filesystems, excepting the one that it was
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index aee50c97988d..a3be7da3e2b9 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -30,8 +30,8 @@
  ** get_direct_parent
  ** get_neighbors
  ** fix_nodes
- ** 
- ** 
+ **
+ **
  **/
 
 #include <linux/time.h>
@@ -377,9 +377,9 @@ static int get_num_ver(int mode, struct tree_balance *tb, int h,
 	int needed_nodes;
 	int start_item,		/* position of item we start filling node from */
 	 end_item,		/* position of item we finish filling node by */
-	 start_bytes,		/* number of first bytes (entries for directory) of start_item-th item 
+	 start_bytes,		/* number of first bytes (entries for directory) of start_item-th item
 				   we do not include into node that is being filled */
-	 end_bytes;		/* number of last bytes (entries for directory) of end_item-th item 
+	 end_bytes;		/* number of last bytes (entries for directory) of end_item-th item
 				   we do node include into node that is being filled */
 	int split_item_positions[2];	/* these are positions in virtual item of
 					   items, that are split between S[0] and
@@ -569,7 +569,7 @@ extern struct tree_balance *cur_tb;
 
 /* Set parameters for balancing.
  * Performs write of results of analysis of balancing into structure tb,
- * where it will later be used by the functions that actually do the balancing. 
+ * where it will later be used by the functions that actually do the balancing.
  * Parameters:
  *	tb	tree_balance structure;
  *	h	current level of the node;
@@ -1204,7 +1204,7 @@ static inline int can_node_be_removed(int mode, int lfree, int sfree, int rfree,
  *	h	current level of the node;
  *	inum	item number in S[h];
  *	mode	i - insert, p - paste;
- * Returns:	1 - schedule occurred; 
+ * Returns:	1 - schedule occurred;
  *	        0 - balancing for higher levels needed;
  *	       -1 - no balancing for higher levels needed;
  *	       -2 - no disk space.
@@ -1239,7 +1239,7 @@ static int ip_check_balance(struct tree_balance *tb, int h)
 	/* we perform 8 calls to get_num_ver().  For each call we calculate five parameters.
 	   where 4th parameter is s1bytes and 5th - s2bytes
 	 */
-	short snum012[40] = { 0, };	/* s0num, s1num, s2num for 8 cases 
+	short snum012[40] = { 0, };	/* s0num, s1num, s2num for 8 cases
 					   0,1 - do not shift and do not shift but bottle
 					   2 - shift only whole item to left
 					   3 - shift to left and bottle as much as possible
@@ -1288,7 +1288,7 @@ static int ip_check_balance(struct tree_balance *tb, int h)
 
 	create_virtual_node(tb, h);
 
-	/*  
+	/*
 	   determine maximal number of items we can shift to the left neighbor (in tb structure)
 	   and the maximal number of bytes that can flow to the left neighbor
 	   from the left most liquid item that cannot be shifted from S[0] entirely (returned value)
@@ -1349,13 +1349,13 @@ static int ip_check_balance(struct tree_balance *tb, int h)
 
 	{
 		int lpar, rpar, nset, lset, rset, lrset;
-		/* 
+		/*
 		 * regular overflowing of the node
 		 */
 
-		/* get_num_ver works in 2 modes (FLOW & NO_FLOW) 
+		/* get_num_ver works in 2 modes (FLOW & NO_FLOW)
 		   lpar, rpar - number of items we can shift to left/right neighbor (including splitting item)
-		   nset, lset, rset, lrset - shows, whether flowing items give better packing 
+		   nset, lset, rset, lrset - shows, whether flowing items give better packing
 		 */
 #define FLOW 1
 #define NO_FLOW 0		/* do not any splitting */
@@ -1545,7 +1545,7 @@ static int ip_check_balance(struct tree_balance *tb, int h)
  *	h	current level of the node;
  *	inum	item number in S[h];
  *	mode	i - insert, p - paste;
- * Returns:	1 - schedule occurred; 
+ * Returns:	1 - schedule occurred;
  *	        0 - balancing for higher levels needed;
  *	       -1 - no balancing for higher levels needed;
  *	       -2 - no disk space.
@@ -1728,7 +1728,7 @@ static int dc_check_balance_internal(struct tree_balance *tb, int h)
  *	h	current level of the node;
  *	inum	item number in S[h];
  *	mode	i - insert, p - paste;
- * Returns:	1 - schedule occurred; 
+ * Returns:	1 - schedule occurred;
  *	        0 - balancing for higher levels needed;
  *	       -1 - no balancing for higher levels needed;
  *	       -2 - no disk space.
@@ -1822,7 +1822,7 @@ static int dc_check_balance_leaf(struct tree_balance *tb, int h)
  *	h	current level of the node;
  *	inum	item number in S[h];
  *	mode	d - delete, c - cut.
- * Returns:	1 - schedule occurred; 
+ * Returns:	1 - schedule occurred;
  *	        0 - balancing for higher levels needed;
  *	       -1 - no balancing for higher levels needed;
  *	       -2 - no disk space.
@@ -1851,7 +1851,7 @@ static int dc_check_balance(struct tree_balance *tb, int h)
  *	h	current level of the node;
  *	inum	item number in S[h];
  *	mode	i - insert, p - paste, d - delete, c - cut.
- * Returns:	1 - schedule occurred; 
+ * Returns:	1 - schedule occurred;
  *	        0 - balancing for higher levels needed;
  *	       -1 - no balancing for higher levels needed;
  *	       -2 - no disk space.
@@ -2296,15 +2296,15 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *p_s_tb)
  *	analyze what and where should be moved;
  *	get sufficient number of new nodes;
  * Balancing will start only after all resources will be collected at a time.
- * 
+ *
  * When ported to SMP kernels, only at the last moment after all needed nodes
  * are collected in cache, will the resources be locked using the usual
  * textbook ordered lock acquisition algorithms.  Note that ensuring that
  * this code neither write locks what it does not need to write lock nor locks out of order
  * will be a pain in the butt that could have been avoided.  Grumble grumble. -Hans
- * 
+ *
  * fix is meant in the sense of render unchanging
- * 
+ *
  * Latency might be improved by first gathering a list of what buffers are needed
  * and then getting as many of them in parallel as possible? -Hans
  *
@@ -2316,7 +2316,7 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *p_s_tb)
  *      ins_ih & ins_sd are used when inserting
  * Returns:	1 - schedule occurred while the function worked;
  *	        0 - schedule didn't occur while the function worked;
- *             -1 - if no_disk_space 
+ *             -1 - if no_disk_space
  */
 
 int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb, struct item_head *p_s_ins_ih,	// item head of item being inserted
diff --git a/fs/reiserfs/hashes.c b/fs/reiserfs/hashes.c
index e664ac16fad9..6471c670743e 100644
--- a/fs/reiserfs/hashes.c
+++ b/fs/reiserfs/hashes.c
@@ -7,7 +7,7 @@
  * (see Applied Cryptography, 2nd edition, p448).
  *
  * Jeremy Fitzhardinge <jeremy@zip.com.au> 1998
- * 
+ *
  * Jeremy has agreed to the contents of reiserfs/README. -Hans
  * Yura's function is added (04/07/2000)
  */
diff --git a/fs/reiserfs/ibalance.c b/fs/reiserfs/ibalance.c
index 063b5514fe29..2074fd95046b 100644
--- a/fs/reiserfs/ibalance.c
+++ b/fs/reiserfs/ibalance.c
@@ -278,7 +278,7 @@ static void internal_delete_childs(struct buffer_info *cur_bi, int from, int n)
 
 /* copy cpy_num node pointers and cpy_num - 1 items from buffer src to buffer dest
 * last_first == FIRST_TO_LAST means, that we copy first items from src to tail of dest
- * last_first == LAST_TO_FIRST means, that we copy last items from src to head of dest 
+ * last_first == LAST_TO_FIRST means, that we copy last items from src to head of dest
  */
 static void internal_copy_pointers_items(struct buffer_info *dest_bi,
 					 struct buffer_head *src,
@@ -385,7 +385,7 @@ static void internal_move_pointers_items(struct buffer_info *dest_bi,
 	if (last_first == FIRST_TO_LAST) {	/* shift_left occurs */
 		first_pointer = 0;
 		first_item = 0;
-		/* delete cpy_num - del_par pointers and keys starting for pointers with first_pointer, 
+		/* delete cpy_num - del_par pointers and keys starting for pointers with first_pointer,
 		   for key - with first_item */
 		internal_delete_pointers_items(src_bi, first_pointer,
 					       first_item, cpy_num - del_par);
@@ -453,7 +453,7 @@ static void internal_insert_key(struct buffer_info *dest_bi, int dest_position_b
 	}
 }
 
-/* Insert d_key'th (delimiting) key from buffer cfl to tail of dest. 
+/* Insert d_key'th (delimiting) key from buffer cfl to tail of dest.
  * Copy pointer_amount node pointers and pointer_amount - 1 items from buffer src to buffer dest.
  * Replace  d_key'th key in buffer cfl.
  * Delete pointer_amount items and node pointers from buffer src.
@@ -518,7 +518,7 @@ static void internal_shift1_left(struct tree_balance *tb,
 	/*    internal_move_pointers_items (tb->L[h], tb->S[h], FIRST_TO_LAST, pointer_amount, 1); */
 }
 
-/* Insert d_key'th (delimiting) key from buffer cfr to head of dest. 
+/* Insert d_key'th (delimiting) key from buffer cfr to head of dest.
  * Copy n node pointers and n - 1 items from buffer src to buffer dest.
  * Replace  d_key'th key in buffer cfr.
  * Delete n items and node pointers from buffer src.
@@ -749,7 +749,7 @@ int balance_internal(struct tree_balance *tb,	/* tree_balance structure
        this means that new pointers and items must be inserted AFTER *
        child_pos
        }
-       else 
+       else
        {
        it is the position of the leftmost pointer that must be deleted (together with
        its corresponding key to the left of the pointer)
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index fcd302d81447..d106edaef64f 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -52,7 +52,7 @@ void reiserfs_delete_inode(struct inode *inode)
 		/* Do quota update inside a transaction for journaled quotas. We must do that
 		 * after delete_object so that quota updates go into the same transaction as
 		 * stat data deletion */
-		if (!err) 
+		if (!err)
 			DQUOT_FREE_INODE(inode);
 
 		if (journal_end(&th, inode->i_sb, jbegin_count))
@@ -363,7 +363,7 @@ static int _get_block_create_0(struct inode *inode, sector_t block,
 		}
 		/* make sure we don't read more bytes than actually exist in
 		 ** the file.  This can happen in odd cases where i_size isn't
-		 ** correct, and when direct item padding results in a few 
+		 ** correct, and when direct item padding results in a few
 		 ** extra bytes at the end of the direct item
 		 */
 		if ((le_ih_k_offset(ih) + path.pos_in_item) > inode->i_size)
@@ -438,15 +438,15 @@ static int reiserfs_bmap(struct inode *inode, sector_t block,
 ** -ENOENT instead of a valid buffer.  block_prepare_write expects to
 ** be able to do i/o on the buffers returned, unless an error value
 ** is also returned.
-** 
+**
 ** So, this allows block_prepare_write to be used for reading a single block
 ** in a page.  Where it does not produce a valid page for holes, or past the
 ** end of the file.  This turns out to be exactly what we need for reading
 ** tails for conversion.
 **
 ** The point of the wrapper is forcing a certain value for create, even
-** though the VFS layer is calling this function with create==1.  If you 
-** don't want to send create == GET_BLOCK_NO_HOLE to reiserfs_get_block, 
+** though the VFS layer is calling this function with create==1.  If you
+** don't want to send create == GET_BLOCK_NO_HOLE to reiserfs_get_block,
 ** don't use this function.
 */
 static int reiserfs_get_block_create_0(struct inode *inode, sector_t block,
@@ -602,7 +602,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 	int done;
 	int fs_gen;
 	struct reiserfs_transaction_handle *th = NULL;
-	/* space reserved in transaction batch: 
+	/* space reserved in transaction batch:
 	   . 3 balancings in direct->indirect conversion
 	   . 1 block involved into reiserfs_update_sd()
 	   XXX in practically impossible worst case direct2indirect()
@@ -754,7 +754,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 		reiserfs_write_unlock(inode->i_sb);
 
 		/* the item was found, so new blocks were not added to the file
-		 ** there is no need to make sure the inode is updated with this 
+		 ** there is no need to make sure the inode is updated with this
 		 ** transaction
 		 */
 		return retval;
@@ -986,7 +986,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 
 		/* this loop could log more blocks than we had originally asked
 		 ** for.  So, we have to allow the transaction to end if it is
-		 ** too big or too full.  Update the inode so things are 
+		 ** too big or too full.  Update the inode so things are
 		 ** consistent if we crash before the function returns
 		 **
 		 ** release the path so that anybody waiting on the path before
@@ -997,7 +997,7 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 			if (retval)
 				goto failure;
 		}
-		/* inserting indirect pointers for a hole can take a 
+		/* inserting indirect pointers for a hole can take a
 		 ** long time.  reschedule if needed
 		 */
 		cond_resched();
@@ -1444,7 +1444,7 @@ void reiserfs_read_locked_inode(struct inode *inode,
 	   update sd on unlink all that is required is to check for nlink
 	   here. This bug was first found by Sizif when debugging
 	   SquidNG/Butterfly, forgotten, and found again after Philippe
-	   Gramoulle <philippe.gramoulle@mmania.com> reproduced it. 
+	   Gramoulle <philippe.gramoulle@mmania.com> reproduced it.
 
 	   More logical fix would require changes in fs/inode.c:iput() to
 	   remove inode from hash-table _after_ fs cleaned disk stuff up and
@@ -1619,7 +1619,7 @@ int reiserfs_write_inode(struct inode *inode, int do_sync)
 	if (inode->i_sb->s_flags & MS_RDONLY)
 		return -EROFS;
 	/* memory pressure can sometimes initiate write_inode calls with sync == 1,
-	 ** these cases are just when the system needs ram, not when the 
+	 ** these cases are just when the system needs ram, not when the
 	 ** inode needs to reach disk for safety, and they can safely be
 	 ** ignored because the altered inode has already been logged.
 	 */
@@ -1736,7 +1736,7 @@ static int reiserfs_new_symlink(struct reiserfs_transaction_handle *th, struct i
 /* inserts the stat data into the tree, and then calls
    reiserfs_new_directory (to insert ".", ".." item if new object is
    directory) or reiserfs_new_symlink (to insert symlink body if new
-   object is symlink) or nothing (if new object is regular file) 
+   object is symlink) or nothing (if new object is regular file)
 
    NOTE! uid and gid must already be set in the inode.  If we return
    non-zero due to an error, we have to drop the quota previously allocated
@@ -1744,7 +1744,7 @@ static int reiserfs_new_symlink(struct reiserfs_transaction_handle *th, struct i
    if we return non-zero, we also end the transaction.  */
 int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 		       struct inode *dir, int mode, const char *symname,
-		       /* 0 for regular, EMTRY_DIR_SIZE for dirs, 
+		       /* 0 for regular, EMTRY_DIR_SIZE for dirs,
 		          strlen (symname) for symlinks) */
 		       loff_t i_size, struct dentry *dentry,
 		       struct inode *inode,
@@ -1794,7 +1794,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 		goto out_bad_inode;
 	}
 	if (old_format_only(sb))
-		/* not a perfect generation count, as object ids can be reused, but 
+		/* not a perfect generation count, as object ids can be reused, but
 		 ** this is as good as reiserfs can do right now.
 		 ** note that the private part of inode isn't filled in yet, we have
 		 ** to use the directory.
@@ -2081,7 +2081,7 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
 
 	if (p_s_inode->i_size > 0) {
 		if ((error = grab_tail_page(p_s_inode, &page, &bh))) {
-			// -ENOENT means we truncated past the end of the file, 
+			// -ENOENT means we truncated past the end of the file,
 			// and get_block_create_0 could not find a block to read in,
 			// which is ok.
 			if (error != -ENOENT)
@@ -2093,11 +2093,11 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
 		}
 	}
 
-	/* so, if page != NULL, we have a buffer head for the offset at 
-	 ** the end of the file. if the bh is mapped, and bh->b_blocknr != 0, 
-	 ** then we have an unformatted node.  Otherwise, we have a direct item, 
-	 ** and no zeroing is required on disk.  We zero after the truncate, 
-	 ** because the truncate might pack the item anyway 
+	/* so, if page != NULL, we have a buffer head for the offset at
+	 ** the end of the file. if the bh is mapped, and bh->b_blocknr != 0,
+	 ** then we have an unformatted node.  Otherwise, we have a direct item,
+	 ** and no zeroing is required on disk.  We zero after the truncate,
+	 ** because the truncate might pack the item anyway
 	 ** (it will unmap bh if it packs).
 	 */
 	/* it is enough to reserve space in transaction for 2 balancings:
@@ -2306,8 +2306,8 @@ static int map_block_for_writepage(struct inode *inode,
 	return retval;
 }
 
-/* 
- * mason@suse.com: updated in 2.5.54 to follow the same general io 
+/*
+ * mason@suse.com: updated in 2.5.54 to follow the same general io
  * start/recovery path as __block_write_full_page, along with special
  * code to handle reiserfs tails.
  */
@@ -2447,7 +2447,7 @@ static int reiserfs_write_full_page(struct page *page,
 	unlock_page(page);
 
 	/*
-	 * since any buffer might be the only dirty buffer on the page, 
+	 * since any buffer might be the only dirty buffer on the page,
 	 * the first submit_bh can bring the page out of writeback.
 	 * be careful with the buffers.
 	 */
@@ -2466,8 +2466,8 @@ static int reiserfs_write_full_page(struct page *page,
 	if (nr == 0) {
 		/*
 		 * if this page only had a direct item, it is very possible for
-		 * no io to be required without there being an error.  Or, 
-		 * someone else could have locked them and sent them down the 
+		 * no io to be required without there being an error.  Or,
+		 * someone else could have locked them and sent them down the
 		 * pipe without locking the page
 		 */
 		bh = head;
@@ -2486,7 +2486,7 @@ static int reiserfs_write_full_page(struct page *page,
 
       fail:
 	/* catches various errors, we need to make sure any valid dirty blocks
-	 * get to the media.  The page is currently locked and not marked for 
+	 * get to the media.  The page is currently locked and not marked for
 	 * writeback
 	 */
 	ClearPageUptodate(page);
diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c
index 830332021ed4..0ccc3fdda7bf 100644
--- a/fs/reiserfs/ioctl.c
+++ b/fs/reiserfs/ioctl.c
@@ -189,7 +189,7 @@ int reiserfs_unpack(struct inode *inode, struct file *filp)
 	}
 
 	/* we unpack by finding the page with the tail, and calling
-	 ** reiserfs_prepare_write on that page.  This will force a 
+	 ** reiserfs_prepare_write on that page.  This will force a
 	 ** reiserfs_get_block to unpack the tail for us.
 	 */
 	index = inode->i_size >> PAGE_CACHE_SHIFT;
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index db91754cfb83..4f787462becc 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -1,36 +1,36 @@
 /*
 ** Write ahead logging implementation copyright Chris Mason 2000
 **
-** The background commits make this code very interelated, and 
+** The background commits make this code very interelated, and
 ** overly complex.  I need to rethink things a bit....The major players:
 **
-** journal_begin -- call with the number of blocks you expect to log.  
+** journal_begin -- call with the number of blocks you expect to log.
 **                  If the current transaction is too
-** 		    old, it will block until the current transaction is 
+** 		    old, it will block until the current transaction is
 ** 		    finished, and then start a new one.
-**		    Usually, your transaction will get joined in with 
+**		    Usually, your transaction will get joined in with
 **                  previous ones for speed.
 **
-** journal_join  -- same as journal_begin, but won't block on the current 
+** journal_join  -- same as journal_begin, but won't block on the current
 **                  transaction regardless of age.  Don't ever call
-**                  this.  Ever.  There are only two places it should be 
+**                  this.  Ever.  There are only two places it should be
 **                  called from, and they are both inside this file.
 **
-** journal_mark_dirty -- adds blocks into this transaction.  clears any flags 
+** journal_mark_dirty -- adds blocks into this transaction.  clears any flags
 **                       that might make them get sent to disk
-**                       and then marks them BH_JDirty.  Puts the buffer head 
-**                       into the current transaction hash.  
+**                       and then marks them BH_JDirty.  Puts the buffer head
+**                       into the current transaction hash.
 **
 ** journal_end -- if the current transaction is batchable, it does nothing
 **                   otherwise, it could do an async/synchronous commit, or
-**                   a full flush of all log and real blocks in the 
+**                   a full flush of all log and real blocks in the
 **                   transaction.
 **
-** flush_old_commits -- if the current transaction is too old, it is ended and 
-**                      commit blocks are sent to disk.  Forces commit blocks 
-**                      to disk for all backgrounded commits that have been 
+** flush_old_commits -- if the current transaction is too old, it is ended and
+**                      commit blocks are sent to disk.  Forces commit blocks
+**                      to disk for all backgrounded commits that have been
 **                      around too long.
-**		     -- Note, if you call this as an immediate flush from 
+**		     -- Note, if you call this as an immediate flush from
 **		        from within kupdate, it will ignore the immediate flag
 */
 
@@ -212,7 +212,7 @@ static void allocate_bitmap_nodes(struct super_block *p_s_sb)
 			list_add(&bn->list, &journal->j_bitmap_nodes);
 			journal->j_free_bitmap_nodes++;
 		} else {
-			break;	// this is ok, we'll try again when more are needed 
+			break;	/* this is ok, we'll try again when more are needed */
 		}
 	}
 }
@@ -283,7 +283,7 @@ static int free_bitmap_nodes(struct super_block *p_s_sb)
 }
 
 /*
-** get memory for JOURNAL_NUM_BITMAPS worth of bitmaps. 
+** get memory for JOURNAL_NUM_BITMAPS worth of bitmaps.
 ** jb_array is the array to be filled in.
 */
 int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb,
@@ -315,7 +315,7 @@ int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb,
 }
 
 /*
-** find an available list bitmap.  If you can't find one, flush a commit list 
+** find an available list bitmap.  If you can't find one, flush a commit list
 ** and try again
 */
 static struct reiserfs_list_bitmap *get_list_bitmap(struct super_block *p_s_sb,
@@ -348,7 +348,7 @@ static struct reiserfs_list_bitmap *get_list_bitmap(struct super_block *p_s_sb,
 	return jb;
 }
 
-/* 
+/*
 ** allocates a new chunk of X nodes, and links them all together as a list.
 ** Uses the cnode->next and cnode->prev pointers
 ** returns NULL on failure
@@ -376,7 +376,7 @@ static struct reiserfs_journal_cnode *allocate_cnodes(int num_cnodes)
 }
 
 /*
-** pulls a cnode off the free list, or returns NULL on failure 
+** pulls a cnode off the free list, or returns NULL on failure
 */
 static struct reiserfs_journal_cnode *get_cnode(struct super_block *p_s_sb)
 {
@@ -403,7 +403,7 @@ static struct reiserfs_journal_cnode *get_cnode(struct super_block *p_s_sb)
 }
 
 /*
-** returns a cnode to the free list 
+** returns a cnode to the free list
 */
 static void free_cnode(struct super_block *p_s_sb,
 		       struct reiserfs_journal_cnode *cn)
@@ -1192,8 +1192,8 @@ static int flush_commit_list(struct super_block *s,
 }
 
 /*
-** flush_journal_list frequently needs to find a newer transaction for a given block.  This does that, or 
-** returns NULL if it can't find anything 
+** flush_journal_list frequently needs to find a newer transaction for a given block.  This does that, or
+** returns NULL if it can't find anything
 */
 static struct reiserfs_journal_list *find_newer_jl_for_cn(struct
 							  reiserfs_journal_cnode
@@ -1335,8 +1335,8 @@ static int update_journal_header_block(struct super_block *p_s_sb,
 	return _update_journal_header_block(p_s_sb, offset, trans_id);
 }
 
-/* 
-** flush any and all journal lists older than you are 
+/*
+** flush any and all journal lists older than you are
 ** can only be called from flush_journal_list
 */
 static int flush_older_journal_lists(struct super_block *p_s_sb,
@@ -1382,8 +1382,8 @@ static void del_from_work_list(struct super_block *s,
 ** always set flushall to 1, unless you are calling from inside
 ** flush_journal_list
 **
-** IMPORTANT.  This can only be called while there are no journal writers, 
-** and the journal is locked.  That means it can only be called from 
+** IMPORTANT.  This can only be called while there are no journal writers,
+** and the journal is locked.  That means it can only be called from
 ** do_journal_end, or by journal_release
 */
 static int flush_journal_list(struct super_block *s,
@@ -1429,7 +1429,7 @@ static int flush_journal_list(struct super_block *s,
 		goto flush_older_and_return;
 	}
 
-	/* start by putting the commit list on disk.  This will also flush 
+	/* start by putting the commit list on disk.  This will also flush
 	 ** the commit lists of any olders transactions
 	 */
 	flush_commit_list(s, jl, 1);
@@ -1444,8 +1444,8 @@ static int flush_journal_list(struct super_block *s,
 		goto flush_older_and_return;
 	}
 
-	/* loop through each cnode, see if we need to write it, 
-	 ** or wait on a more recent transaction, or just ignore it 
+	/* loop through each cnode, see if we need to write it,
+	 ** or wait on a more recent transaction, or just ignore it
 	 */
 	if (atomic_read(&(journal->j_wcount)) != 0) {
 		reiserfs_panic(s, "journal-844", "journal list is flushing, "
@@ -1473,8 +1473,8 @@ static int flush_journal_list(struct super_block *s,
 		if (!pjl && cn->bh) {
 			saved_bh = cn->bh;
 
-			/* we do this to make sure nobody releases the buffer while 
-			 ** we are working with it 
+			/* we do this to make sure nobody releases the buffer while
+			 ** we are working with it
 			 */
 			get_bh(saved_bh);
 
@@ -1497,8 +1497,8 @@ static int flush_journal_list(struct super_block *s,
 			goto free_cnode;
 		}
 
-		/* bh == NULL when the block got to disk on its own, OR, 
-		 ** the block got freed in a future transaction 
+		/* bh == NULL when the block got to disk on its own, OR,
+		 ** the block got freed in a future transaction
 		 */
 		if (saved_bh == NULL) {
 			goto free_cnode;
@@ -1586,7 +1586,7 @@ static int flush_journal_list(struct super_block *s,
 			       __func__);
       flush_older_and_return:
 
-	/* before we can update the journal header block, we _must_ flush all 
+	/* before we can update the journal header block, we _must_ flush all
 	 ** real blocks from all older transactions to disk.  This is because
 	 ** once the header block is updated, this transaction will not be
 	 ** replayed after a crash
@@ -1596,7 +1596,7 @@ static int flush_journal_list(struct super_block *s,
 	}
 
 	err = journal->j_errno;
-	/* before we can remove everything from the hash tables for this 
+	/* before we can remove everything from the hash tables for this
 	 ** transaction, we must make sure it can never be replayed
 	 **
 	 ** since we are only called from do_journal_end, we know for sure there
@@ -2016,9 +2016,9 @@ static int journal_compare_desc_commit(struct super_block *p_s_sb,
 	return 0;
 }
 
-/* returns 0 if it did not find a description block  
+/* returns 0 if it did not find a description block
 ** returns -1 if it found a corrupt commit block
-** returns 1 if both desc and commit were valid 
+** returns 1 if both desc and commit were valid
 */
 static int journal_transaction_is_valid(struct super_block *p_s_sb,
 					struct buffer_head *d_bh,
@@ -2380,8 +2380,8 @@ static int journal_read(struct super_block *p_s_sb)
 		      bdevname(journal->j_dev_bd, b));
 	start = get_seconds();
 
-	/* step 1, read in the journal header block.  Check the transaction it says 
-	 ** is the first unflushed, and if that transaction is not valid, 
+	/* step 1, read in the journal header block.  Check the transaction it says
+	 ** is the first unflushed, and if that transaction is not valid,
 	 ** replay is done
 	 */
 	journal->j_header_bh = journal_bread(p_s_sb,
@@ -2406,8 +2406,8 @@ static int journal_read(struct super_block *p_s_sb)
 			       le32_to_cpu(jh->j_last_flush_trans_id));
 		valid_journal_header = 1;
 
-		/* now, we try to read the first unflushed offset.  If it is not valid, 
-		 ** there is nothing more we can do, and it makes no sense to read 
+		/* now, we try to read the first unflushed offset.  If it is not valid,
+		 ** there is nothing more we can do, and it makes no sense to read
 		 ** through the whole log.
 		 */
 		d_bh =
@@ -2919,7 +2919,7 @@ int journal_transaction_should_end(struct reiserfs_transaction_handle *th,
 	return 0;
 }
 
-/* this must be called inside a transaction, and requires the 
+/* this must be called inside a transaction, and requires the
 ** kernel_lock to be held
 */
 void reiserfs_block_writes(struct reiserfs_transaction_handle *th)
@@ -3040,7 +3040,7 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
 	now = get_seconds();
 
 	/* if there is no room in the journal OR
-	 ** if this transaction is too old, and we weren't called joinable, wait for it to finish before beginning 
+	 ** if this transaction is too old, and we weren't called joinable, wait for it to finish before beginning
 	 ** we don't sleep if there aren't other writers
 	 */
 
@@ -3240,7 +3240,7 @@ int journal_begin(struct reiserfs_transaction_handle *th,
 **
 ** if it was dirty, cleans and files onto the clean list.  I can't let it be dirty again until the
 ** transaction is committed.
-** 
+**
 ** if j_len, is bigger than j_len_alloc, it pushes j_len_alloc to 10 + j_len.
 */
 int journal_mark_dirty(struct reiserfs_transaction_handle *th,
@@ -3290,7 +3290,7 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 				 atomic_read(&(journal->j_wcount)));
 		return 1;
 	}
-	/* this error means I've screwed up, and we've overflowed the transaction.  
+	/* this error means I've screwed up, and we've overflowed the transaction.
 	 ** Nothing can be done here, except make the FS readonly or panic.
 	 */
 	if (journal->j_len >= journal->j_trans_max) {
@@ -3380,7 +3380,7 @@ int journal_end(struct reiserfs_transaction_handle *th,
 	}
 }
 
-/* removes from the current transaction, relsing and descrementing any counters.  
+/* removes from the current transaction, relsing and descrementing any counters.
 ** also files the removed buffer directly onto the clean list
 **
 ** called by journal_mark_freed when a block has been deleted
@@ -3478,7 +3478,7 @@ static int can_dirty(struct reiserfs_journal_cnode *cn)
 }
 
 /* syncs the commit blocks, but does not force the real buffers to disk
-** will wait until the current transaction is done/committed before returning 
+** will wait until the current transaction is done/committed before returning
 */
 int journal_end_sync(struct reiserfs_transaction_handle *th,
 		     struct super_block *p_s_sb, unsigned long nblocks)
@@ -3560,13 +3560,13 @@ int reiserfs_flush_old_commits(struct super_block *p_s_sb)
 
 /*
 ** returns 0 if do_journal_end should return right away, returns 1 if do_journal_end should finish the commit
-** 
-** if the current transaction is too old, but still has writers, this will wait on j_join_wait until all 
+**
+** if the current transaction is too old, but still has writers, this will wait on j_join_wait until all
 ** the writers are done.  By the time it wakes up, the transaction it was called has already ended, so it just
 ** flushes the commit list and returns 0.
 **
 ** Won't batch when flush or commit_now is set.  Also won't batch when others are waiting on j_join_wait.
-** 
+**
 ** Note, we can't allow the journal_end to proceed while there are still writers in the log.
 */
 static int check_journal_end(struct reiserfs_transaction_handle *th,
@@ -3594,7 +3594,7 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 		atomic_dec(&(journal->j_wcount));
 	}
 
-	/* BUG, deal with case where j_len is 0, but people previously freed blocks need to be released 
+	/* BUG, deal with case where j_len is 0, but people previously freed blocks need to be released
 	 ** will be dealt with by next transaction that actually writes something, but should be taken
 	 ** care of in this trans
 	 */
@@ -3603,7 +3603,7 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 	/* if wcount > 0, and we are called to with flush or commit_now,
 	 ** we wait on j_join_wait.  We will wake up when the last writer has
 	 ** finished the transaction, and started it on its way to the disk.
-	 ** Then, we flush the commit or journal list, and just return 0 
+	 ** Then, we flush the commit or journal list, and just return 0
 	 ** because the rest of journal end was already done for this transaction.
 	 */
 	if (atomic_read(&(journal->j_wcount)) > 0) {
@@ -3674,7 +3674,7 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 /*
 ** Does all the work that makes deleting blocks safe.
 ** when deleting a block mark BH_JNew, just remove it from the current transaction, clean it's buffer_head and move on.
-** 
+**
 ** otherwise:
 ** set a bit for the block in the journal bitmap.  That will prevent it from being allocated for unformatted nodes
 ** before this transaction has finished.
@@ -3878,7 +3878,7 @@ extern struct tree_balance *cur_tb;
 ** be written to disk while we are altering it.  So, we must:
 ** clean it
 ** wait on it.
-** 
+**
 */
 int reiserfs_prepare_for_journal(struct super_block *p_s_sb,
 				 struct buffer_head *bh, int wait)
@@ -3920,7 +3920,7 @@ static void flush_old_journal_lists(struct super_block *s)
 	}
 }
 
-/* 
+/*
 ** long and ugly.  If flush, will not return until all commit
 ** blocks and all real buffers in the trans are on disk.
 ** If no_async, won't return until all commit blocks are on disk.
@@ -3981,7 +3981,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 		wait_on_commit = 1;
 	}
 
-	/* check_journal_end locks the journal, and unlocks if it does not return 1 
+	/* check_journal_end locks the journal, and unlocks if it does not return 1
 	 ** it tells us if we should continue with the journal_end, or just return
 	 */
 	if (!check_journal_end(th, p_s_sb, nblocks, flags)) {
@@ -4078,7 +4078,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 				last_cn->next = jl_cn;
 			}
 			last_cn = jl_cn;
-			/* make sure the block we are trying to log is not a block 
+			/* make sure the block we are trying to log is not a block
 			   of journal or reserved area */
 
 			if (is_block_in_log_or_reserved_area
@@ -4225,9 +4225,9 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	} else if (!(jl->j_state & LIST_COMMIT_PENDING))
 		queue_delayed_work(commit_wq, &journal->j_work, HZ / 10);
 
-	/* if the next transaction has any chance of wrapping, flush 
-	 ** transactions that might get overwritten.  If any journal lists are very 
-	 ** old flush them as well.  
+	/* if the next transaction has any chance of wrapping, flush
+	 ** transactions that might get overwritten.  If any journal lists are very
+	 ** old flush them as well.
 	 */
       first_jl:
 	list_for_each_safe(entry, safe, &journal->j_journal_list) {
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index 21a171ceba1d..381750a155f6 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -119,8 +119,8 @@ static void leaf_copy_dir_entries(struct buffer_info *dest_bi,
 			   DEH_SIZE * copy_count + copy_records_len);
 }
 
-/* Copy the first (if last_first == FIRST_TO_LAST) or last (last_first == LAST_TO_FIRST) item or 
-   part of it or nothing (see the return 0 below) from SOURCE to the end 
+/* Copy the first (if last_first == FIRST_TO_LAST) or last (last_first == LAST_TO_FIRST) item or
+   part of it or nothing (see the return 0 below) from SOURCE to the end
    (if last_first) or beginning (!last_first) of the DEST */
 /* returns 1 if anything was copied, else 0 */
 static int leaf_copy_boundary_item(struct buffer_info *dest_bi,
@@ -396,7 +396,7 @@ static void leaf_item_bottle(struct buffer_info *dest_bi,
 		else {
 			struct item_head n_ih;
 
-			/* copy part of the body of the item number 'item_num' of SOURCE to the end of the DEST 
+			/* copy part of the body of the item number 'item_num' of SOURCE to the end of the DEST
 			   part defined by 'cpy_bytes'; create new item header; change old item_header (????);
 			   n_ih = new item_header;
 			 */
@@ -426,7 +426,7 @@ static void leaf_item_bottle(struct buffer_info *dest_bi,
 		else {
 			struct item_head n_ih;
 
-			/* copy part of the body of the item number 'item_num' of SOURCE to the begin of the DEST 
+			/* copy part of the body of the item number 'item_num' of SOURCE to the begin of the DEST
 			   part defined by 'cpy_bytes'; create new item header;
 			   n_ih = new item_header;
 			 */
@@ -724,7 +724,7 @@ int leaf_shift_right(struct tree_balance *tb, int shift_num, int shift_bytes)
 static void leaf_delete_items_entirely(struct buffer_info *bi,
 				       int first, int del_num);
 /*  If del_bytes == -1, starting from position 'first' delete del_num items in whole in buffer CUR.
-    If not. 
+    If not.
     If last_first == 0. Starting from position 'first' delete del_num-1 items in whole. Delete part of body of
     the first item. Part defined by del_bytes. Don't delete first item header
     If last_first == 1. Starting from position 'first+1' delete del_num-1 items in whole. Delete part of body of
@@ -783,7 +783,7 @@ void leaf_delete_items(struct buffer_info *cur_bi, int last_first,
 				/* len = body len of item */
 				len = ih_item_len(ih);
 
-			/* delete the part of the last item of the bh 
+			/* delete the part of the last item of the bh
 			   do not delete item header
 			 */
 			leaf_cut_from_buffer(cur_bi, B_NR_ITEMS(bh) - 1,
@@ -865,7 +865,7 @@ void leaf_insert_into_buf(struct buffer_info *bi, int before,
 	}
 }
 
-/* paste paste_size bytes to affected_item_num-th item. 
+/* paste paste_size bytes to affected_item_num-th item.
    When item is a directory, this only prepare space for new entries */
 void leaf_paste_in_buffer(struct buffer_info *bi, int affected_item_num,
 			  int pos_in_item, int paste_size,
@@ -1022,7 +1022,7 @@ static int leaf_cut_entries(struct buffer_head *bh,
 /*  when cut item is part of regular file
         pos_in_item - first byte that must be cut
         cut_size - number of bytes to be cut beginning from pos_in_item
- 
+
    when cut item is part of directory
         pos_in_item - number of first deleted entry
         cut_size - count of deleted entries
@@ -1275,7 +1275,7 @@ void leaf_paste_entries(struct buffer_info *bi,
 	/* change item key if necessary (when we paste before 0-th entry */
 	if (!before) {
 		set_le_ih_k_offset(ih, deh_offset(new_dehs));
-/*      memcpy (&ih->ih_key.k_offset, 
+/*      memcpy (&ih->ih_key.k_offset,
 		       &new_dehs->deh_offset, SHORT_KEY_SIZE);*/
 	}
 #ifdef CONFIG_REISERFS_CHECK
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index cb1a9e977907..9d1070e741fc 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -106,7 +106,7 @@ key of the first directory entry in it.
 This function first calls search_by_key, then, if item whose first
 entry matches is not found it looks for the entry inside directory
 item found by search_by_key. Fills the path to the entry, and to the
-entry position in the item 
+entry position in the item
 
 */
 
@@ -371,7 +371,7 @@ static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
 	return d_splice_alias(inode, dentry);
 }
 
-/* 
+/*
 ** looks up the dentry of the parent directory for child.
 ** taken from ext2_get_parent
 */
@@ -401,7 +401,7 @@ struct dentry *reiserfs_get_parent(struct dentry *child)
 	return d_obtain_alias(inode);
 }
 
-/* add entry to the directory (entry can be hidden). 
+/* add entry to the directory (entry can be hidden).
 
 insert definition of when hidden directories are used here -Hans
 
@@ -559,7 +559,7 @@ static int drop_new_inode(struct inode *inode)
 	return 0;
 }
 
-/* utility function that does setup for reiserfs_new_inode.  
+/* utility function that does setup for reiserfs_new_inode.
 ** DQUOT_INIT needs lots of credits so it's better to have it
 ** outside of a transaction, so we had to pull some bits of
 ** reiserfs_new_inode out into this func.
@@ -820,7 +820,7 @@ static inline int reiserfs_empty_dir(struct inode *inode)
 {
 	/* we can cheat because an old format dir cannot have
 	 ** EMPTY_DIR_SIZE, and a new format dir cannot have
-	 ** EMPTY_DIR_SIZE_V1.  So, if the inode is either size, 
+	 ** EMPTY_DIR_SIZE_V1.  So, if the inode is either size,
 	 ** regardless of disk format version, the directory is empty.
 	 */
 	if (inode->i_size != EMPTY_DIR_SIZE &&
@@ -1162,7 +1162,7 @@ static int reiserfs_link(struct dentry *old_dentry, struct inode *dir,
 	return retval;
 }
 
-// de contains information pointing to an entry which 
+/* de contains information pointing to an entry which */
 static int de_still_valid(const char *name, int len,
 			  struct reiserfs_dir_entry *de)
 {
@@ -1206,10 +1206,10 @@ static void set_ino_in_dir_entry(struct reiserfs_dir_entry *de,
 	de->de_deh[de->de_entry_num].deh_objectid = key->k_objectid;
 }
 
-/* 
+/*
  * process, that is going to call fix_nodes/do_balance must hold only
  * one path. If it holds 2 or more, it can get into endless waiting in
- * get_empty_nodes or its clones 
+ * get_empty_nodes or its clones
  */
 static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			   struct inode *new_dir, struct dentry *new_dentry)
@@ -1263,7 +1263,7 @@ static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 
 	old_inode_mode = old_inode->i_mode;
 	if (S_ISDIR(old_inode_mode)) {
-		// make sure, that directory being renamed has correct ".." 
+		// make sure, that directory being renamed has correct ".."
 		// and that its new parent directory has not too many links
 		// already
 
@@ -1274,8 +1274,8 @@ static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			}
 		}
 
-		/* directory is renamed, its parent directory will be changed, 
-		 ** so find ".." entry 
+		/* directory is renamed, its parent directory will be changed,
+		 ** so find ".." entry
 		 */
 		dot_dot_de.de_gen_number_bit_string = NULL;
 		retval =
@@ -1385,9 +1385,9 @@ static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		   this stuff, yes? Then, having
 		   gathered everything into RAM we
 		   should lock the buffers, yes?  -Hans */
-		/* probably.  our rename needs to hold more 
-		 ** than one path at once.  The seals would 
-		 ** have to be written to deal with multi-path 
+		/* probably.  our rename needs to hold more
+		 ** than one path at once.  The seals would
+		 ** have to be written to deal with multi-path
 		 ** issues -chris
 		 */
 		/* sanity checking before doing the rename - avoid races many
@@ -1465,7 +1465,7 @@ static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	}
 
 	if (S_ISDIR(old_inode_mode)) {
-		// adjust ".." of renamed directory 
+		/* adjust ".." of renamed directory */
 		set_ino_in_dir_entry(&dot_dot_de, INODE_PKEY(new_dir));
 		journal_mark_dirty(&th, new_dir->i_sb, dot_dot_de.de_bh);
 
diff --git a/fs/reiserfs/objectid.c b/fs/reiserfs/objectid.c
index d2d6b5650188..3a6de810bd61 100644
--- a/fs/reiserfs/objectid.c
+++ b/fs/reiserfs/objectid.c
@@ -180,7 +180,7 @@ int reiserfs_convert_objectid_map_v1(struct super_block *s)
 
 	if (cur_size > new_size) {
 		/* mark everyone used that was listed as free at the end of the objectid
-		 ** map 
+		 ** map
 		 */
 		objectid_map[new_size - 1] = objectid_map[cur_size - 1];
 		set_sb_oid_cursize(disk_sb, new_size);
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index 8e826c07cd21..536eacaeb710 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -178,11 +178,11 @@ static char *is_there_reiserfs_struct(char *fmt, int *what)
    appropriative printk. With this reiserfs_warning you can use format
    specification for complex structures like you used to do with
    printfs for integers, doubles and pointers. For instance, to print
-   out key structure you have to write just: 
-   reiserfs_warning ("bad key %k", key); 
-   instead of 
-   printk ("bad key %lu %lu %lu %lu", key->k_dir_id, key->k_objectid, 
-           key->k_offset, key->k_uniqueness); 
+   out key structure you have to write just:
+   reiserfs_warning ("bad key %k", key);
+   instead of
+   printk ("bad key %lu %lu %lu %lu", key->k_dir_id, key->k_objectid,
+           key->k_offset, key->k_uniqueness);
 */
 static DEFINE_SPINLOCK(error_lock);
 static void prepare_error_buf(const char *fmt, va_list args)
@@ -244,11 +244,11 @@ static void prepare_error_buf(const char *fmt, va_list args)
 }
 
 /* in addition to usual conversion specifiers this accepts reiserfs
-   specific conversion specifiers: 
-   %k to print little endian key, 
-   %K to print cpu key, 
+   specific conversion specifiers:
+   %k to print little endian key,
+   %K to print cpu key,
    %h to print item_head,
-   %t to print directory entry 
+   %t to print directory entry
    %z to print block head (arg must be struct buffer_head *
    %b to print buffer_head
 */
@@ -314,17 +314,17 @@ void reiserfs_debug(struct super_block *s, int level, const char *fmt, ...)
     maintainer-errorid.  Don't bother with reusing errorids, there are
     lots of numbers out there.
 
-    Example: 
-    
+    Example:
+
     reiserfs_panic(
 	p_sb, "reiser-29: reiserfs_new_blocknrs: "
 	"one of search_start or rn(%d) is equal to MAX_B_NUM,"
-	"which means that we are optimizing location based on the bogus location of a temp buffer (%p).", 
+	"which means that we are optimizing location based on the bogus location of a temp buffer (%p).",
 	rn, bh
     );
 
     Regular panic()s sometimes clear the screen before the message can
-    be read, thus the need for the while loop.  
+    be read, thus the need for the while loop.
 
     Numbering scheme for panic used by Vladimir and Anatoly( Hans completely ignores this scheme, and considers it
     pointless complexity):
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index d4d7f1433ed0..d5066400638a 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -633,7 +633,7 @@ int reiserfs_global_version_in_proc(char *buffer, char **start,
  *
  */
 
-/* 
+/*
  * Make Linus happy.
  * Local variables:
  * c-indentation-style: "K&R"
diff --git a/fs/reiserfs/resize.c b/fs/reiserfs/resize.c
index f71c3948edef..238e9d9b31e0 100644
--- a/fs/reiserfs/resize.c
+++ b/fs/reiserfs/resize.c
@@ -1,8 +1,8 @@
-/* 
+/*
  * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
  */
 
-/* 
+/*
  * Written by Alexander Zarochentcev.
  *
  * The kernel part of the (on-line) reiserfs resizer.
@@ -101,7 +101,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
 			memcpy(jbitmap[i].bitmaps, jb->bitmaps, copy_size);
 
 			/* just in case vfree schedules on us, copy the new
-			 ** pointer into the journal struct before freeing the 
+			 ** pointer into the journal struct before freeing the
 			 ** old one
 			 */
 			node_tmp = jb->bitmaps;
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index b2eaa0c6b7b7..a65bfee28bb8 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -77,7 +77,7 @@ inline void copy_item_head(struct item_head *p_v_to,
 /* k1 is pointer to on-disk structure which is stored in little-endian
    form. k2 is pointer to cpu variable. For key of items of the same
    object this returns 0.
-   Returns: -1 if key1 < key2 
+   Returns: -1 if key1 < key2
    0 if key1 == key2
    1 if key1 > key2 */
 inline int comp_short_keys(const struct reiserfs_key *le_key,
@@ -890,7 +890,7 @@ static inline int prepare_for_direct_item(struct treepath *path,
 	}
 	// new file gets truncated
 	if (get_inode_item_key_version(inode) == KEY_FORMAT_3_6) {
-		// 
+		//
 		round_len = ROUND_UP(new_file_length);
 		/* this was n_new_file_length < le_ih ... */
 		if (round_len < le_ih_k_offset(le_ih)) {
@@ -1443,7 +1443,7 @@ static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th,
 	if (atomic_read(&p_s_inode->i_count) > 1 ||
 	    !tail_has_to_be_packed(p_s_inode) ||
 	    !page || (REISERFS_I(p_s_inode)->i_flags & i_nopack_mask)) {
-		// leave tail in an unformatted node    
+		/* leave tail in an unformatted node */
 		*p_c_mode = M_SKIP_BALANCING;
 		cut_bytes =
 		    n_block_size - (n_new_file_size & (n_block_size - 1));
@@ -1826,7 +1826,7 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
 		/* While there are bytes to truncate and previous file item is presented in the tree. */
 
 		/*
-		 ** This loop could take a really long time, and could log 
+		 ** This loop could take a really long time, and could log
 		 ** many more blocks than a transaction can hold.  So, we do a polite
 		 ** journal end here, and if the transaction needs ending, we make
 		 ** sure the file is consistent before ending the current trans
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 4a1e16362ebd..d7519b951500 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -758,7 +758,7 @@ static int reiserfs_getopt(struct super_block *s, char **cur, opt_desc_t * opts,
 			   char **opt_arg, unsigned long *bit_flags)
 {
 	char *p;
-	/* foo=bar, 
+	/* foo=bar,
 	   ^   ^  ^
 	   |   |  +-- option_end
 	   |   +-- arg_start
@@ -1348,7 +1348,7 @@ static int read_super_block(struct super_block *s, int offset)
 	}
 	//
 	// ok, reiserfs signature (old or new) found in at the given offset
-	//    
+	//
 	fs_blocksize = sb_blocksize(rs);
 	brelse(bh);
 	sb_set_blocksize(s, fs_blocksize);
@@ -1534,8 +1534,8 @@ static int what_hash(struct super_block *s)
 		code = find_hash_out(s);
 
 	if (code != UNSET_HASH && reiserfs_hash_detect(s)) {
-		/* detection has found the hash, and we must check against the 
-		 ** mount options 
+		/* detection has found the hash, and we must check against the
+		 ** mount options
 		 */
 		if (reiserfs_rupasov_hash(s) && code != YURA_HASH) {
 			reiserfs_warning(s, "reiserfs-2507",
@@ -1567,7 +1567,7 @@ static int what_hash(struct super_block *s)
 		}
 	}
 
-	/* if we are mounted RW, and we have a new valid hash code, update 
+	/* if we are mounted RW, and we have a new valid hash code, update
 	 ** the super
 	 */
 	if (code != UNSET_HASH &&
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index 083f74435f65..0635cfe0f0b7 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -46,7 +46,7 @@ int direct2indirect(struct reiserfs_transaction_handle *th, struct inode *inode,
 	/* Set the key to search for the place for new unfm pointer */
 	make_cpu_key(&end_key, inode, tail_offset, TYPE_INDIRECT, 4);
 
-	// FIXME: we could avoid this 
+	/* FIXME: we could avoid this */
 	if (search_for_position_by_key(sb, &end_key, path) == POSITION_FOUND) {
 		reiserfs_error(sb, "PAP-14030",
 			       "pasted or inserted byte exists in "
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 4686b90886ed..5621d87c4479 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -14,7 +14,7 @@ typedef enum {
 } reiserfs_super_block_flags;
 
 /* struct reiserfs_super_block accessors/mutators
- * since this is a disk structure, it will always be in 
+ * since this is a disk structure, it will always be in
  * little endian format. */
 #define sb_block_count(sbp)         (le32_to_cpu((sbp)->s_v1.s_block_count))
 #define set_sb_block_count(sbp,v)   ((sbp)->s_v1.s_block_count = cpu_to_le32(v))
@@ -83,16 +83,16 @@ typedef enum {
 
 /* LOGGING -- */
 
-/* These all interelate for performance.  
+/* These all interelate for performance.
 **
-** If the journal block count is smaller than n transactions, you lose speed. 
+** If the journal block count is smaller than n transactions, you lose speed.
 ** I don't know what n is yet, I'm guessing 8-16.
 **
 ** typical transaction size depends on the application, how often fsync is
-** called, and how many metadata blocks you dirty in a 30 second period.  
+** called, and how many metadata blocks you dirty in a 30 second period.
 ** The more small files (<16k) you use, the larger your transactions will
 ** be.
-** 
+**
 ** If your journal fills faster than dirty buffers get flushed to disk, it must flush them before allowing the journal
 ** to wrap, which slows things down.  If you need high speed meta data updates, the journal should be big enough
 ** to prevent wrapping before dirty meta blocks get to disk.
@@ -242,7 +242,7 @@ struct reiserfs_journal {
 
 	struct reiserfs_list_bitmap j_list_bitmap[JOURNAL_NUM_BITMAPS];	/* array of bitmaps to record the deleted blocks */
 	struct reiserfs_journal_cnode *j_hash_table[JOURNAL_HASH_SIZE];	/* hash table for real buffer heads in current trans */
-	struct reiserfs_journal_cnode *j_list_hash_table[JOURNAL_HASH_SIZE];	/* hash table for all the real buffer heads in all 
+	struct reiserfs_journal_cnode *j_list_hash_table[JOURNAL_HASH_SIZE];	/* hash table for all the real buffer heads in all
 										   the transactions */
 	struct list_head j_prealloc_list;	/* list of inodes which have preallocated blocks */
 	int j_persistent_trans;
@@ -426,7 +426,7 @@ enum reiserfs_mount_options {
 				   partition will be dealt with in a
 				   manner of 3.5.x */
 
-/* -o hash={tea, rupasov, r5, detect} is meant for properly mounting 
+/* -o hash={tea, rupasov, r5, detect} is meant for properly mounting
 ** reiserfs disks from 3.5.19 or earlier.  99% of the time, this option
 ** is not required.  If the normal autodection code can't determine which
 ** hash to use (because both hashes had the same value for a file)
-- 
cgit v1.2.3


From a9dd364358fbdc68faee5d20c2d648c320dc3cf0 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:45 -0400
Subject: reiserfs: rename p_s_sb to sb

This patch is a simple s/p_s_sb/sb/g to the reiserfs code.  This is the
first in a series of patches to rip out some of the awful variable
naming in reiserfs.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/fix_node.c        |  46 +--
 fs/reiserfs/journal.c         | 735 +++++++++++++++++++++---------------------
 fs/reiserfs/stree.c           | 126 ++++----
 fs/reiserfs/tail_conversion.c |  16 +-
 include/linux/reiserfs_fs.h   |  14 +-
 5 files changed, 468 insertions(+), 469 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index a3be7da3e2b9..799c0ce24291 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -785,7 +785,7 @@ static int get_empty_nodes(struct tree_balance *p_s_tb, int n_h)
 	b_blocknr_t *p_n_blocknr, a_n_blocknrs[MAX_AMOUNT_NEEDED] = { 0, };
 	int n_counter, n_number_of_freeblk, n_amount_needed,	/* number of needed empty blocks */
 	 n_retval = CARRY_ON;
-	struct super_block *p_s_sb = p_s_tb->tb_sb;
+	struct super_block *sb = p_s_tb->tb_sb;
 
 	/* number_of_freeblk is the number of empty blocks which have been
 	   acquired for use by the balancing algorithm minus the number of
@@ -830,7 +830,7 @@ static int get_empty_nodes(struct tree_balance *p_s_tb, int n_h)
 		RFALSE(!*p_n_blocknr,
 		       "PAP-8135: reiserfs_new_blocknrs failed when got new blocks");
 
-		p_s_new_bh = sb_getblk(p_s_sb, *p_n_blocknr);
+		p_s_new_bh = sb_getblk(sb, *p_n_blocknr);
 		RFALSE(buffer_dirty(p_s_new_bh) ||
 		       buffer_journaled(p_s_new_bh) ||
 		       buffer_journal_dirty(p_s_new_bh),
@@ -899,7 +899,7 @@ static int get_rfree(struct tree_balance *tb, int h)
 static int is_left_neighbor_in_cache(struct tree_balance *p_s_tb, int n_h)
 {
 	struct buffer_head *p_s_father, *left;
-	struct super_block *p_s_sb = p_s_tb->tb_sb;
+	struct super_block *sb = p_s_tb->tb_sb;
 	b_blocknr_t n_left_neighbor_blocknr;
 	int n_left_neighbor_position;
 
@@ -924,7 +924,7 @@ static int is_left_neighbor_in_cache(struct tree_balance *p_s_tb, int n_h)
 	n_left_neighbor_blocknr =
 	    B_N_CHILD_NUM(p_s_tb->FL[n_h], n_left_neighbor_position);
 	/* Look for the left neighbor in the cache. */
-	if ((left = sb_find_get_block(p_s_sb, n_left_neighbor_blocknr))) {
+	if ((left = sb_find_get_block(sb, n_left_neighbor_blocknr))) {
 
 		RFALSE(buffer_uptodate(left) && !B_IS_IN_TREE(left),
 		       "vs-8170: left neighbor (%b %z) is not in the tree",
@@ -1942,14 +1942,14 @@ static int get_neighbors(struct tree_balance *p_s_tb, int n_h)
 	int n_child_position,
 	    n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h + 1);
 	unsigned long n_son_number;
-	struct super_block *p_s_sb = p_s_tb->tb_sb;
+	struct super_block *sb = p_s_tb->tb_sb;
 	struct buffer_head *p_s_bh;
 
-	PROC_INFO_INC(p_s_sb, get_neighbors[n_h]);
+	PROC_INFO_INC(sb, get_neighbors[n_h]);
 
 	if (p_s_tb->lnum[n_h]) {
 		/* We need left neighbor to balance S[n_h]. */
-		PROC_INFO_INC(p_s_sb, need_l_neighbor[n_h]);
+		PROC_INFO_INC(sb, need_l_neighbor[n_h]);
 		p_s_bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
 
 		RFALSE(p_s_bh == p_s_tb->FL[n_h] &&
@@ -1961,12 +1961,12 @@ static int get_neighbors(struct tree_balance *p_s_tb, int n_h)
 		     p_s_tb->FL[n_h]) ? p_s_tb->lkey[n_h] : B_NR_ITEMS(p_s_tb->
 								       FL[n_h]);
 		n_son_number = B_N_CHILD_NUM(p_s_tb->FL[n_h], n_child_position);
-		p_s_bh = sb_bread(p_s_sb, n_son_number);
+		p_s_bh = sb_bread(sb, n_son_number);
 		if (!p_s_bh)
 			return IO_ERROR;
 		if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
 			brelse(p_s_bh);
-			PROC_INFO_INC(p_s_sb, get_neighbors_restart[n_h]);
+			PROC_INFO_INC(sb, get_neighbors_restart[n_h]);
 			return REPEAT_SEARCH;
 		}
 
@@ -1986,7 +1986,7 @@ static int get_neighbors(struct tree_balance *p_s_tb, int n_h)
 	}
 
 	if (p_s_tb->rnum[n_h]) {	/* We need right neighbor to balance S[n_path_offset]. */
-		PROC_INFO_INC(p_s_sb, need_r_neighbor[n_h]);
+		PROC_INFO_INC(sb, need_r_neighbor[n_h]);
 		p_s_bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
 
 		RFALSE(p_s_bh == p_s_tb->FR[n_h] &&
@@ -1998,12 +1998,12 @@ static int get_neighbors(struct tree_balance *p_s_tb, int n_h)
 		n_child_position =
 		    (p_s_bh == p_s_tb->FR[n_h]) ? p_s_tb->rkey[n_h] + 1 : 0;
 		n_son_number = B_N_CHILD_NUM(p_s_tb->FR[n_h], n_child_position);
-		p_s_bh = sb_bread(p_s_sb, n_son_number);
+		p_s_bh = sb_bread(sb, n_son_number);
 		if (!p_s_bh)
 			return IO_ERROR;
 		if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
 			brelse(p_s_bh);
-			PROC_INFO_INC(p_s_sb, get_neighbors_restart[n_h]);
+			PROC_INFO_INC(sb, get_neighbors_restart[n_h]);
 			return REPEAT_SEARCH;
 		}
 		brelse(p_s_tb->R[n_h]);
@@ -2089,51 +2089,51 @@ static int get_mem_for_virtual_node(struct tree_balance *tb)
 }
 
 #ifdef CONFIG_REISERFS_CHECK
-static void tb_buffer_sanity_check(struct super_block *p_s_sb,
+static void tb_buffer_sanity_check(struct super_block *sb,
 				   struct buffer_head *p_s_bh,
 				   const char *descr, int level)
 {
 	if (p_s_bh) {
 		if (atomic_read(&(p_s_bh->b_count)) <= 0) {
 
-			reiserfs_panic(p_s_sb, "jmacd-1", "negative or zero "
+			reiserfs_panic(sb, "jmacd-1", "negative or zero "
 				       "reference counter for buffer %s[%d] "
 				       "(%b)", descr, level, p_s_bh);
 		}
 
 		if (!buffer_uptodate(p_s_bh)) {
-			reiserfs_panic(p_s_sb, "jmacd-2", "buffer is not up "
+			reiserfs_panic(sb, "jmacd-2", "buffer is not up "
 				       "to date %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 
 		if (!B_IS_IN_TREE(p_s_bh)) {
-			reiserfs_panic(p_s_sb, "jmacd-3", "buffer is not "
+			reiserfs_panic(sb, "jmacd-3", "buffer is not "
 				       "in tree %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 
-		if (p_s_bh->b_bdev != p_s_sb->s_bdev) {
-			reiserfs_panic(p_s_sb, "jmacd-4", "buffer has wrong "
+		if (p_s_bh->b_bdev != sb->s_bdev) {
+			reiserfs_panic(sb, "jmacd-4", "buffer has wrong "
 				       "device %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 
-		if (p_s_bh->b_size != p_s_sb->s_blocksize) {
-			reiserfs_panic(p_s_sb, "jmacd-5", "buffer has wrong "
+		if (p_s_bh->b_size != sb->s_blocksize) {
+			reiserfs_panic(sb, "jmacd-5", "buffer has wrong "
 				       "blocksize %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 
-		if (p_s_bh->b_blocknr > SB_BLOCK_COUNT(p_s_sb)) {
-			reiserfs_panic(p_s_sb, "jmacd-6", "buffer block "
+		if (p_s_bh->b_blocknr > SB_BLOCK_COUNT(sb)) {
+			reiserfs_panic(sb, "jmacd-6", "buffer block "
 				       "number too high %s[%d] (%b)",
 				       descr, level, p_s_bh);
 		}
 	}
 }
 #else
-static void tb_buffer_sanity_check(struct super_block *p_s_sb,
+static void tb_buffer_sanity_check(struct super_block *sb,
 				   struct buffer_head *p_s_bh,
 				   const char *descr, int level)
 {;
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 4f787462becc..77f5bb746bf0 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -97,7 +97,7 @@ static int flush_commit_list(struct super_block *s,
 			     struct reiserfs_journal_list *jl, int flushall);
 static int can_dirty(struct reiserfs_journal_cnode *cn);
 static int journal_join(struct reiserfs_transaction_handle *th,
-			struct super_block *p_s_sb, unsigned long nblocks);
+			struct super_block *sb, unsigned long nblocks);
 static int release_journal_dev(struct super_block *super,
 			       struct reiserfs_journal *journal);
 static int dirty_one_transaction(struct super_block *s,
@@ -113,12 +113,12 @@ enum {
 };
 
 static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
-			      struct super_block *p_s_sb,
+			      struct super_block *sb,
 			      unsigned long nblocks, int join);
 
-static void init_journal_hash(struct super_block *p_s_sb)
+static void init_journal_hash(struct super_block *sb)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	memset(journal->j_hash_table, 0,
 	       JOURNAL_HASH_SIZE * sizeof(struct reiserfs_journal_cnode *));
 }
@@ -145,7 +145,7 @@ static void disable_barrier(struct super_block *s)
 }
 
 static struct reiserfs_bitmap_node *allocate_bitmap_node(struct super_block
-							 *p_s_sb)
+							 *sb)
 {
 	struct reiserfs_bitmap_node *bn;
 	static int id;
@@ -154,7 +154,7 @@ static struct reiserfs_bitmap_node *allocate_bitmap_node(struct super_block
 	if (!bn) {
 		return NULL;
 	}
-	bn->data = kzalloc(p_s_sb->s_blocksize, GFP_NOFS);
+	bn->data = kzalloc(sb->s_blocksize, GFP_NOFS);
 	if (!bn->data) {
 		kfree(bn);
 		return NULL;
@@ -164,9 +164,9 @@ static struct reiserfs_bitmap_node *allocate_bitmap_node(struct super_block
 	return bn;
 }
 
-static struct reiserfs_bitmap_node *get_bitmap_node(struct super_block *p_s_sb)
+static struct reiserfs_bitmap_node *get_bitmap_node(struct super_block *sb)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_bitmap_node *bn = NULL;
 	struct list_head *entry = journal->j_bitmap_nodes.next;
 
@@ -176,21 +176,21 @@ static struct reiserfs_bitmap_node *get_bitmap_node(struct super_block *p_s_sb)
 	if (entry != &journal->j_bitmap_nodes) {
 		bn = list_entry(entry, struct reiserfs_bitmap_node, list);
 		list_del(entry);
-		memset(bn->data, 0, p_s_sb->s_blocksize);
+		memset(bn->data, 0, sb->s_blocksize);
 		journal->j_free_bitmap_nodes--;
 		return bn;
 	}
-	bn = allocate_bitmap_node(p_s_sb);
+	bn = allocate_bitmap_node(sb);
 	if (!bn) {
 		yield();
 		goto repeat;
 	}
 	return bn;
 }
-static inline void free_bitmap_node(struct super_block *p_s_sb,
+static inline void free_bitmap_node(struct super_block *sb,
 				    struct reiserfs_bitmap_node *bn)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	journal->j_used_bitmap_nodes--;
 	if (journal->j_free_bitmap_nodes > REISERFS_MAX_BITMAP_NODES) {
 		kfree(bn->data);
@@ -201,13 +201,13 @@ static inline void free_bitmap_node(struct super_block *p_s_sb,
 	}
 }
 
-static void allocate_bitmap_nodes(struct super_block *p_s_sb)
+static void allocate_bitmap_nodes(struct super_block *sb)
 {
 	int i;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_bitmap_node *bn = NULL;
 	for (i = 0; i < REISERFS_MIN_BITMAP_NODES; i++) {
-		bn = allocate_bitmap_node(p_s_sb);
+		bn = allocate_bitmap_node(sb);
 		if (bn) {
 			list_add(&bn->list, &journal->j_bitmap_nodes);
 			journal->j_free_bitmap_nodes++;
@@ -217,30 +217,30 @@ static void allocate_bitmap_nodes(struct super_block *p_s_sb)
 	}
 }
 
-static int set_bit_in_list_bitmap(struct super_block *p_s_sb,
+static int set_bit_in_list_bitmap(struct super_block *sb,
 				  b_blocknr_t block,
 				  struct reiserfs_list_bitmap *jb)
 {
-	unsigned int bmap_nr = block / (p_s_sb->s_blocksize << 3);
-	unsigned int bit_nr = block % (p_s_sb->s_blocksize << 3);
+	unsigned int bmap_nr = block / (sb->s_blocksize << 3);
+	unsigned int bit_nr = block % (sb->s_blocksize << 3);
 
 	if (!jb->bitmaps[bmap_nr]) {
-		jb->bitmaps[bmap_nr] = get_bitmap_node(p_s_sb);
+		jb->bitmaps[bmap_nr] = get_bitmap_node(sb);
 	}
 	set_bit(bit_nr, (unsigned long *)jb->bitmaps[bmap_nr]->data);
 	return 0;
 }
 
-static void cleanup_bitmap_list(struct super_block *p_s_sb,
+static void cleanup_bitmap_list(struct super_block *sb,
 				struct reiserfs_list_bitmap *jb)
 {
 	int i;
 	if (jb->bitmaps == NULL)
 		return;
 
-	for (i = 0; i < reiserfs_bmap_count(p_s_sb); i++) {
+	for (i = 0; i < reiserfs_bmap_count(sb); i++) {
 		if (jb->bitmaps[i]) {
-			free_bitmap_node(p_s_sb, jb->bitmaps[i]);
+			free_bitmap_node(sb, jb->bitmaps[i]);
 			jb->bitmaps[i] = NULL;
 		}
 	}
@@ -249,7 +249,7 @@ static void cleanup_bitmap_list(struct super_block *p_s_sb,
 /*
 ** only call this on FS unmount.
 */
-static int free_list_bitmaps(struct super_block *p_s_sb,
+static int free_list_bitmaps(struct super_block *sb,
 			     struct reiserfs_list_bitmap *jb_array)
 {
 	int i;
@@ -257,16 +257,16 @@ static int free_list_bitmaps(struct super_block *p_s_sb,
 	for (i = 0; i < JOURNAL_NUM_BITMAPS; i++) {
 		jb = jb_array + i;
 		jb->journal_list = NULL;
-		cleanup_bitmap_list(p_s_sb, jb);
+		cleanup_bitmap_list(sb, jb);
 		vfree(jb->bitmaps);
 		jb->bitmaps = NULL;
 	}
 	return 0;
 }
 
-static int free_bitmap_nodes(struct super_block *p_s_sb)
+static int free_bitmap_nodes(struct super_block *sb)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct list_head *next = journal->j_bitmap_nodes.next;
 	struct reiserfs_bitmap_node *bn;
 
@@ -286,7 +286,7 @@ static int free_bitmap_nodes(struct super_block *p_s_sb)
 ** get memory for JOURNAL_NUM_BITMAPS worth of bitmaps.
 ** jb_array is the array to be filled in.
 */
-int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb,
+int reiserfs_allocate_list_bitmaps(struct super_block *sb,
 				   struct reiserfs_list_bitmap *jb_array,
 				   unsigned int bmap_nr)
 {
@@ -300,7 +300,7 @@ int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb,
 		jb->journal_list = NULL;
 		jb->bitmaps = vmalloc(mem);
 		if (!jb->bitmaps) {
-			reiserfs_warning(p_s_sb, "clm-2000", "unable to "
+			reiserfs_warning(sb, "clm-2000", "unable to "
 					 "allocate bitmaps for journal lists");
 			failed = 1;
 			break;
@@ -308,7 +308,7 @@ int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb,
 		memset(jb->bitmaps, 0, mem);
 	}
 	if (failed) {
-		free_list_bitmaps(p_s_sb, jb_array);
+		free_list_bitmaps(sb, jb_array);
 		return -1;
 	}
 	return 0;
@@ -318,12 +318,12 @@ int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb,
 ** find an available list bitmap.  If you can't find one, flush a commit list
 ** and try again
 */
-static struct reiserfs_list_bitmap *get_list_bitmap(struct super_block *p_s_sb,
+static struct reiserfs_list_bitmap *get_list_bitmap(struct super_block *sb,
 						    struct reiserfs_journal_list
 						    *jl)
 {
 	int i, j;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_list_bitmap *jb = NULL;
 
 	for (j = 0; j < (JOURNAL_NUM_BITMAPS * 3); j++) {
@@ -331,7 +331,7 @@ static struct reiserfs_list_bitmap *get_list_bitmap(struct super_block *p_s_sb,
 		journal->j_list_bitmap_index = (i + 1) % JOURNAL_NUM_BITMAPS;
 		jb = journal->j_list_bitmap + i;
 		if (journal->j_list_bitmap[i].journal_list) {
-			flush_commit_list(p_s_sb,
+			flush_commit_list(sb,
 					  journal->j_list_bitmap[i].
 					  journal_list, 1);
 			if (!journal->j_list_bitmap[i].journal_list) {
@@ -378,12 +378,12 @@ static struct reiserfs_journal_cnode *allocate_cnodes(int num_cnodes)
 /*
 ** pulls a cnode off the free list, or returns NULL on failure
 */
-static struct reiserfs_journal_cnode *get_cnode(struct super_block *p_s_sb)
+static struct reiserfs_journal_cnode *get_cnode(struct super_block *sb)
 {
 	struct reiserfs_journal_cnode *cn;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 
-	reiserfs_check_lock_depth(p_s_sb, "get_cnode");
+	reiserfs_check_lock_depth(sb, "get_cnode");
 
 	if (journal->j_cnode_free <= 0) {
 		return NULL;
@@ -405,12 +405,12 @@ static struct reiserfs_journal_cnode *get_cnode(struct super_block *p_s_sb)
 /*
 ** returns a cnode to the free list
 */
-static void free_cnode(struct super_block *p_s_sb,
+static void free_cnode(struct super_block *sb,
 		       struct reiserfs_journal_cnode *cn)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 
-	reiserfs_check_lock_depth(p_s_sb, "free_cnode");
+	reiserfs_check_lock_depth(sb, "free_cnode");
 
 	journal->j_cnode_used--;
 	journal->j_cnode_free++;
@@ -481,11 +481,11 @@ static inline struct reiserfs_journal_cnode *get_journal_hash_dev(struct
 ** reject it on the next call to reiserfs_in_journal
 **
 */
-int reiserfs_in_journal(struct super_block *p_s_sb,
+int reiserfs_in_journal(struct super_block *sb,
 			unsigned int bmap_nr, int bit_nr, int search_all,
 			b_blocknr_t * next_zero_bit)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_journal_cnode *cn;
 	struct reiserfs_list_bitmap *jb;
 	int i;
@@ -493,14 +493,14 @@ int reiserfs_in_journal(struct super_block *p_s_sb,
 
 	*next_zero_bit = 0;	/* always start this at zero. */
 
-	PROC_INFO_INC(p_s_sb, journal.in_journal);
+	PROC_INFO_INC(sb, journal.in_journal);
 	/* If we aren't doing a search_all, this is a metablock, and it will be logged before use.
 	 ** if we crash before the transaction that freed it commits,  this transaction won't
 	 ** have committed either, and the block will never be written
 	 */
 	if (search_all) {
 		for (i = 0; i < JOURNAL_NUM_BITMAPS; i++) {
-			PROC_INFO_INC(p_s_sb, journal.in_journal_bitmap);
+			PROC_INFO_INC(sb, journal.in_journal_bitmap);
 			jb = journal->j_list_bitmap + i;
 			if (jb->journal_list && jb->bitmaps[bmap_nr] &&
 			    test_bit(bit_nr,
@@ -510,28 +510,28 @@ int reiserfs_in_journal(struct super_block *p_s_sb,
 				    find_next_zero_bit((unsigned long *)
 						       (jb->bitmaps[bmap_nr]->
 							data),
-						       p_s_sb->s_blocksize << 3,
+						       sb->s_blocksize << 3,
 						       bit_nr + 1);
 				return 1;
 			}
 		}
 	}
 
-	bl = bmap_nr * (p_s_sb->s_blocksize << 3) + bit_nr;
+	bl = bmap_nr * (sb->s_blocksize << 3) + bit_nr;
 	/* is it in any old transactions? */
 	if (search_all
 	    && (cn =
-		get_journal_hash_dev(p_s_sb, journal->j_list_hash_table, bl))) {
+		get_journal_hash_dev(sb, journal->j_list_hash_table, bl))) {
 		return 1;
 	}
 
 	/* is it in the current transaction.  This should never happen */
-	if ((cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, bl))) {
+	if ((cn = get_journal_hash_dev(sb, journal->j_hash_table, bl))) {
 		BUG();
 		return 1;
 	}
 
-	PROC_INFO_INC(p_s_sb, journal.in_journal_reusable);
+	PROC_INFO_INC(sb, journal.in_journal_reusable);
 	/* safe for reuse */
 	return 0;
 }
@@ -553,16 +553,16 @@ static inline void insert_journal_hash(struct reiserfs_journal_cnode **table,
 }
 
 /* lock the current transaction */
-static inline void lock_journal(struct super_block *p_s_sb)
+static inline void lock_journal(struct super_block *sb)
 {
-	PROC_INFO_INC(p_s_sb, journal.lock_journal);
-	mutex_lock(&SB_JOURNAL(p_s_sb)->j_mutex);
+	PROC_INFO_INC(sb, journal.lock_journal);
+	mutex_lock(&SB_JOURNAL(sb)->j_mutex);
 }
 
 /* unlock the current transaction */
-static inline void unlock_journal(struct super_block *p_s_sb)
+static inline void unlock_journal(struct super_block *sb)
 {
-	mutex_unlock(&SB_JOURNAL(p_s_sb)->j_mutex);
+	mutex_unlock(&SB_JOURNAL(sb)->j_mutex);
 }
 
 static inline void get_journal_list(struct reiserfs_journal_list *jl)
@@ -586,13 +586,13 @@ static inline void put_journal_list(struct super_block *s,
 ** it gets called by flush_commit_list, and cleans up any data stored about blocks freed during a
 ** transaction.
 */
-static void cleanup_freed_for_journal_list(struct super_block *p_s_sb,
+static void cleanup_freed_for_journal_list(struct super_block *sb,
 					   struct reiserfs_journal_list *jl)
 {
 
 	struct reiserfs_list_bitmap *jb = jl->j_list_bitmap;
 	if (jb) {
-		cleanup_bitmap_list(p_s_sb, jb);
+		cleanup_bitmap_list(sb, jb);
 	}
 	jl->j_list_bitmap->journal_list = NULL;
 	jl->j_list_bitmap = NULL;
@@ -1237,11 +1237,11 @@ static void remove_journal_hash(struct super_block *,
 ** journal list for this transaction.  Aside from freeing the cnode, this also allows the
 ** block to be reallocated for data blocks if it had been deleted.
 */
-static void remove_all_from_journal_list(struct super_block *p_s_sb,
+static void remove_all_from_journal_list(struct super_block *sb,
 					 struct reiserfs_journal_list *jl,
 					 int debug)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_journal_cnode *cn, *last;
 	cn = jl->j_realblock;
 
@@ -1251,18 +1251,18 @@ static void remove_all_from_journal_list(struct super_block *p_s_sb,
 	while (cn) {
 		if (cn->blocknr != 0) {
 			if (debug) {
-				reiserfs_warning(p_s_sb, "reiserfs-2201",
+				reiserfs_warning(sb, "reiserfs-2201",
 						 "block %u, bh is %d, state %ld",
 						 cn->blocknr, cn->bh ? 1 : 0,
 						 cn->state);
 			}
 			cn->state = 0;
-			remove_journal_hash(p_s_sb, journal->j_list_hash_table,
+			remove_journal_hash(sb, journal->j_list_hash_table,
 					    jl, cn->blocknr, 1);
 		}
 		last = cn;
 		cn = cn->next;
-		free_cnode(p_s_sb, last);
+		free_cnode(sb, last);
 	}
 	jl->j_realblock = NULL;
 }
@@ -1274,12 +1274,12 @@ static void remove_all_from_journal_list(struct super_block *p_s_sb,
 ** called by flush_journal_list, before it calls remove_all_from_journal_list
 **
 */
-static int _update_journal_header_block(struct super_block *p_s_sb,
+static int _update_journal_header_block(struct super_block *sb,
 					unsigned long offset,
 					unsigned int trans_id)
 {
 	struct reiserfs_journal_header *jh;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 
 	if (reiserfs_is_journal_aborted(journal))
 		return -EIO;
@@ -1289,7 +1289,7 @@ static int _update_journal_header_block(struct super_block *p_s_sb,
 			wait_on_buffer((journal->j_header_bh));
 			if (unlikely(!buffer_uptodate(journal->j_header_bh))) {
 #ifdef CONFIG_REISERFS_CHECK
-				reiserfs_warning(p_s_sb, "journal-699",
+				reiserfs_warning(sb, "journal-699",
 						 "buffer write failed");
 #endif
 				return -EIO;
@@ -1303,24 +1303,24 @@ static int _update_journal_header_block(struct super_block *p_s_sb,
 		jh->j_first_unflushed_offset = cpu_to_le32(offset);
 		jh->j_mount_id = cpu_to_le32(journal->j_mount_id);
 
-		if (reiserfs_barrier_flush(p_s_sb)) {
+		if (reiserfs_barrier_flush(sb)) {
 			int ret;
 			lock_buffer(journal->j_header_bh);
 			ret = submit_barrier_buffer(journal->j_header_bh);
 			if (ret == -EOPNOTSUPP) {
 				set_buffer_uptodate(journal->j_header_bh);
-				disable_barrier(p_s_sb);
+				disable_barrier(sb);
 				goto sync;
 			}
 			wait_on_buffer(journal->j_header_bh);
-			check_barrier_completion(p_s_sb, journal->j_header_bh);
+			check_barrier_completion(sb, journal->j_header_bh);
 		} else {
 		      sync:
 			set_buffer_dirty(journal->j_header_bh);
 			sync_dirty_buffer(journal->j_header_bh);
 		}
 		if (!buffer_uptodate(journal->j_header_bh)) {
-			reiserfs_warning(p_s_sb, "journal-837",
+			reiserfs_warning(sb, "journal-837",
 					 "IO error during journal replay");
 			return -EIO;
 		}
@@ -1328,23 +1328,23 @@ static int _update_journal_header_block(struct super_block *p_s_sb,
 	return 0;
 }
 
-static int update_journal_header_block(struct super_block *p_s_sb,
+static int update_journal_header_block(struct super_block *sb,
 				       unsigned long offset,
 				       unsigned int trans_id)
 {
-	return _update_journal_header_block(p_s_sb, offset, trans_id);
+	return _update_journal_header_block(sb, offset, trans_id);
 }
 
 /*
 ** flush any and all journal lists older than you are
 ** can only be called from flush_journal_list
 */
-static int flush_older_journal_lists(struct super_block *p_s_sb,
+static int flush_older_journal_lists(struct super_block *sb,
 				     struct reiserfs_journal_list *jl)
 {
 	struct list_head *entry;
 	struct reiserfs_journal_list *other_jl;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	unsigned int trans_id = jl->j_trans_id;
 
 	/* we know we are the only ones flushing things, no extra race
@@ -1359,7 +1359,7 @@ static int flush_older_journal_lists(struct super_block *p_s_sb,
 	if (other_jl->j_trans_id < trans_id) {
 		BUG_ON(other_jl->j_refcount <= 0);
 		/* do not flush all */
-		flush_journal_list(p_s_sb, other_jl, 0);
+		flush_journal_list(sb, other_jl, 0);
 
 		/* other_jl is now deleted from the list */
 		goto restart;
@@ -1908,22 +1908,22 @@ void remove_journal_hash(struct super_block *sb,
 	}
 }
 
-static void free_journal_ram(struct super_block *p_s_sb)
+static void free_journal_ram(struct super_block *sb)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	kfree(journal->j_current_jl);
 	journal->j_num_lists--;
 
 	vfree(journal->j_cnode_free_orig);
-	free_list_bitmaps(p_s_sb, journal->j_list_bitmap);
-	free_bitmap_nodes(p_s_sb);	/* must be after free_list_bitmaps */
+	free_list_bitmaps(sb, journal->j_list_bitmap);
+	free_bitmap_nodes(sb);	/* must be after free_list_bitmaps */
 	if (journal->j_header_bh) {
 		brelse(journal->j_header_bh);
 	}
 	/* j_header_bh is on the journal dev, make sure not to release the journal
 	 * dev until we brelse j_header_bh
 	 */
-	release_journal_dev(p_s_sb, journal);
+	release_journal_dev(sb, journal);
 	vfree(journal);
 }
 
@@ -1932,27 +1932,27 @@ static void free_journal_ram(struct super_block *p_s_sb)
 ** of read_super() yet.  Any other caller must keep error at 0.
 */
 static int do_journal_release(struct reiserfs_transaction_handle *th,
-			      struct super_block *p_s_sb, int error)
+			      struct super_block *sb, int error)
 {
 	struct reiserfs_transaction_handle myth;
 	int flushed = 0;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 
 	/* we only want to flush out transactions if we were called with error == 0
 	 */
-	if (!error && !(p_s_sb->s_flags & MS_RDONLY)) {
+	if (!error && !(sb->s_flags & MS_RDONLY)) {
 		/* end the current trans */
 		BUG_ON(!th->t_trans_id);
-		do_journal_end(th, p_s_sb, 10, FLUSH_ALL);
+		do_journal_end(th, sb, 10, FLUSH_ALL);
 
 		/* make sure something gets logged to force our way into the flush code */
-		if (!journal_join(&myth, p_s_sb, 1)) {
-			reiserfs_prepare_for_journal(p_s_sb,
-						     SB_BUFFER_WITH_SB(p_s_sb),
+		if (!journal_join(&myth, sb, 1)) {
+			reiserfs_prepare_for_journal(sb,
+						     SB_BUFFER_WITH_SB(sb),
 						     1);
-			journal_mark_dirty(&myth, p_s_sb,
-					   SB_BUFFER_WITH_SB(p_s_sb));
-			do_journal_end(&myth, p_s_sb, 1, FLUSH_ALL);
+			journal_mark_dirty(&myth, sb,
+					   SB_BUFFER_WITH_SB(sb));
+			do_journal_end(&myth, sb, 1, FLUSH_ALL);
 			flushed = 1;
 		}
 	}
@@ -1960,26 +1960,26 @@ static int do_journal_release(struct reiserfs_transaction_handle *th,
 	/* this also catches errors during the do_journal_end above */
 	if (!error && reiserfs_is_journal_aborted(journal)) {
 		memset(&myth, 0, sizeof(myth));
-		if (!journal_join_abort(&myth, p_s_sb, 1)) {
-			reiserfs_prepare_for_journal(p_s_sb,
-						     SB_BUFFER_WITH_SB(p_s_sb),
+		if (!journal_join_abort(&myth, sb, 1)) {
+			reiserfs_prepare_for_journal(sb,
+						     SB_BUFFER_WITH_SB(sb),
 						     1);
-			journal_mark_dirty(&myth, p_s_sb,
-					   SB_BUFFER_WITH_SB(p_s_sb));
-			do_journal_end(&myth, p_s_sb, 1, FLUSH_ALL);
+			journal_mark_dirty(&myth, sb,
+					   SB_BUFFER_WITH_SB(sb));
+			do_journal_end(&myth, sb, 1, FLUSH_ALL);
 		}
 	}
 
 	reiserfs_mounted_fs_count--;
 	/* wait for all commits to finish */
-	cancel_delayed_work(&SB_JOURNAL(p_s_sb)->j_work);
+	cancel_delayed_work(&SB_JOURNAL(sb)->j_work);
 	flush_workqueue(commit_wq);
 	if (!reiserfs_mounted_fs_count) {
 		destroy_workqueue(commit_wq);
 		commit_wq = NULL;
 	}
 
-	free_journal_ram(p_s_sb);
+	free_journal_ram(sb);
 
 	return 0;
 }
@@ -1988,28 +1988,28 @@ static int do_journal_release(struct reiserfs_transaction_handle *th,
 ** call on unmount.  flush all journal trans, release all alloc'd ram
 */
 int journal_release(struct reiserfs_transaction_handle *th,
-		    struct super_block *p_s_sb)
+		    struct super_block *sb)
 {
-	return do_journal_release(th, p_s_sb, 0);
+	return do_journal_release(th, sb, 0);
 }
 
 /*
 ** only call from an error condition inside reiserfs_read_super!
 */
 int journal_release_error(struct reiserfs_transaction_handle *th,
-			  struct super_block *p_s_sb)
+			  struct super_block *sb)
 {
-	return do_journal_release(th, p_s_sb, 1);
+	return do_journal_release(th, sb, 1);
 }
 
 /* compares description block with commit block.  returns 1 if they differ, 0 if they are the same */
-static int journal_compare_desc_commit(struct super_block *p_s_sb,
+static int journal_compare_desc_commit(struct super_block *sb,
 				       struct reiserfs_journal_desc *desc,
 				       struct reiserfs_journal_commit *commit)
 {
 	if (get_commit_trans_id(commit) != get_desc_trans_id(desc) ||
 	    get_commit_trans_len(commit) != get_desc_trans_len(desc) ||
-	    get_commit_trans_len(commit) > SB_JOURNAL(p_s_sb)->j_trans_max ||
+	    get_commit_trans_len(commit) > SB_JOURNAL(sb)->j_trans_max ||
 	    get_commit_trans_len(commit) <= 0) {
 		return 1;
 	}
@@ -2020,7 +2020,7 @@ static int journal_compare_desc_commit(struct super_block *p_s_sb,
 ** returns -1 if it found a corrupt commit block
 ** returns 1 if both desc and commit were valid
 */
-static int journal_transaction_is_valid(struct super_block *p_s_sb,
+static int journal_transaction_is_valid(struct super_block *sb,
 					struct buffer_head *d_bh,
 					unsigned int *oldest_invalid_trans_id,
 					unsigned long *newest_mount_id)
@@ -2038,7 +2038,7 @@ static int journal_transaction_is_valid(struct super_block *p_s_sb,
 	    && !memcmp(get_journal_desc_magic(d_bh), JOURNAL_DESC_MAGIC, 8)) {
 		if (oldest_invalid_trans_id && *oldest_invalid_trans_id
 		    && get_desc_trans_id(desc) > *oldest_invalid_trans_id) {
-			reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+			reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 				       "journal-986: transaction "
 				       "is valid returning because trans_id %d is greater than "
 				       "oldest_invalid %lu",
@@ -2048,7 +2048,7 @@ static int journal_transaction_is_valid(struct super_block *p_s_sb,
 		}
 		if (newest_mount_id
 		    && *newest_mount_id > get_desc_mount_id(desc)) {
-			reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+			reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 				       "journal-1087: transaction "
 				       "is valid returning because mount_id %d is less than "
 				       "newest_mount_id %lu",
@@ -2056,37 +2056,37 @@ static int journal_transaction_is_valid(struct super_block *p_s_sb,
 				       *newest_mount_id);
 			return -1;
 		}
-		if (get_desc_trans_len(desc) > SB_JOURNAL(p_s_sb)->j_trans_max) {
-			reiserfs_warning(p_s_sb, "journal-2018",
+		if (get_desc_trans_len(desc) > SB_JOURNAL(sb)->j_trans_max) {
+			reiserfs_warning(sb, "journal-2018",
 					 "Bad transaction length %d "
 					 "encountered, ignoring transaction",
 					 get_desc_trans_len(desc));
 			return -1;
 		}
-		offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb);
+		offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(sb);
 
 		/* ok, we have a journal description block, lets see if the transaction was valid */
 		c_bh =
-		    journal_bread(p_s_sb,
-				  SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+		    journal_bread(sb,
+				  SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 				  ((offset + get_desc_trans_len(desc) +
-				    1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb)));
+				    1) % SB_ONDISK_JOURNAL_SIZE(sb)));
 		if (!c_bh)
 			return 0;
 		commit = (struct reiserfs_journal_commit *)c_bh->b_data;
-		if (journal_compare_desc_commit(p_s_sb, desc, commit)) {
-			reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+		if (journal_compare_desc_commit(sb, desc, commit)) {
+			reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 				       "journal_transaction_is_valid, commit offset %ld had bad "
 				       "time %d or length %d",
 				       c_bh->b_blocknr -
-				       SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb),
+				       SB_ONDISK_JOURNAL_1st_BLOCK(sb),
 				       get_commit_trans_id(commit),
 				       get_commit_trans_len(commit));
 			brelse(c_bh);
 			if (oldest_invalid_trans_id) {
 				*oldest_invalid_trans_id =
 				    get_desc_trans_id(desc);
-				reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+				reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 					       "journal-1004: "
 					       "transaction_is_valid setting oldest invalid trans_id "
 					       "to %d",
@@ -2095,11 +2095,11 @@ static int journal_transaction_is_valid(struct super_block *p_s_sb,
 			return -1;
 		}
 		brelse(c_bh);
-		reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+		reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 			       "journal-1006: found valid "
 			       "transaction start offset %llu, len %d id %d",
 			       d_bh->b_blocknr -
-			       SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb),
+			       SB_ONDISK_JOURNAL_1st_BLOCK(sb),
 			       get_desc_trans_len(desc),
 			       get_desc_trans_id(desc));
 		return 1;
@@ -2121,13 +2121,13 @@ static void brelse_array(struct buffer_head **heads, int num)
 ** this either reads in a replays a transaction, or returns because the transaction
 ** is invalid, or too old.
 */
-static int journal_read_transaction(struct super_block *p_s_sb,
+static int journal_read_transaction(struct super_block *sb,
 				    unsigned long cur_dblock,
 				    unsigned long oldest_start,
 				    unsigned int oldest_trans_id,
 				    unsigned long newest_mount_id)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_journal_desc *desc;
 	struct reiserfs_journal_commit *commit;
 	unsigned int trans_id = 0;
@@ -2139,45 +2139,45 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 	int i;
 	int trans_half;
 
-	d_bh = journal_bread(p_s_sb, cur_dblock);
+	d_bh = journal_bread(sb, cur_dblock);
 	if (!d_bh)
 		return 1;
 	desc = (struct reiserfs_journal_desc *)d_bh->b_data;
-	trans_offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb);
-	reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1037: "
+	trans_offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(sb);
+	reiserfs_debug(sb, REISERFS_DEBUG_CODE, "journal-1037: "
 		       "journal_read_transaction, offset %llu, len %d mount_id %d",
-		       d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb),
+		       d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(sb),
 		       get_desc_trans_len(desc), get_desc_mount_id(desc));
 	if (get_desc_trans_id(desc) < oldest_trans_id) {
-		reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1039: "
+		reiserfs_debug(sb, REISERFS_DEBUG_CODE, "journal-1039: "
 			       "journal_read_trans skipping because %lu is too old",
 			       cur_dblock -
-			       SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb));
+			       SB_ONDISK_JOURNAL_1st_BLOCK(sb));
 		brelse(d_bh);
 		return 1;
 	}
 	if (get_desc_mount_id(desc) != newest_mount_id) {
-		reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1146: "
+		reiserfs_debug(sb, REISERFS_DEBUG_CODE, "journal-1146: "
 			       "journal_read_trans skipping because %d is != "
 			       "newest_mount_id %lu", get_desc_mount_id(desc),
 			       newest_mount_id);
 		brelse(d_bh);
 		return 1;
 	}
-	c_bh = journal_bread(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+	c_bh = journal_bread(sb, SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 			     ((trans_offset + get_desc_trans_len(desc) + 1) %
-			      SB_ONDISK_JOURNAL_SIZE(p_s_sb)));
+			      SB_ONDISK_JOURNAL_SIZE(sb)));
 	if (!c_bh) {
 		brelse(d_bh);
 		return 1;
 	}
 	commit = (struct reiserfs_journal_commit *)c_bh->b_data;
-	if (journal_compare_desc_commit(p_s_sb, desc, commit)) {
-		reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+	if (journal_compare_desc_commit(sb, desc, commit)) {
+		reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 			       "journal_read_transaction, "
 			       "commit offset %llu had bad time %d or length %d",
 			       c_bh->b_blocknr -
-			       SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb),
+			       SB_ONDISK_JOURNAL_1st_BLOCK(sb),
 			       get_commit_trans_id(commit),
 			       get_commit_trans_len(commit));
 		brelse(c_bh);
@@ -2195,30 +2195,30 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 		brelse(d_bh);
 		kfree(log_blocks);
 		kfree(real_blocks);
-		reiserfs_warning(p_s_sb, "journal-1169",
+		reiserfs_warning(sb, "journal-1169",
 				 "kmalloc failed, unable to mount FS");
 		return -1;
 	}
 	/* get all the buffer heads */
-	trans_half = journal_trans_half(p_s_sb->s_blocksize);
+	trans_half = journal_trans_half(sb->s_blocksize);
 	for (i = 0; i < get_desc_trans_len(desc); i++) {
 		log_blocks[i] =
-		    journal_getblk(p_s_sb,
-				   SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+		    journal_getblk(sb,
+				   SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 				   (trans_offset + 1 +
-				    i) % SB_ONDISK_JOURNAL_SIZE(p_s_sb));
+				    i) % SB_ONDISK_JOURNAL_SIZE(sb));
 		if (i < trans_half) {
 			real_blocks[i] =
-			    sb_getblk(p_s_sb,
+			    sb_getblk(sb,
 				      le32_to_cpu(desc->j_realblock[i]));
 		} else {
 			real_blocks[i] =
-			    sb_getblk(p_s_sb,
+			    sb_getblk(sb,
 				      le32_to_cpu(commit->
 						  j_realblock[i - trans_half]));
 		}
-		if (real_blocks[i]->b_blocknr > SB_BLOCK_COUNT(p_s_sb)) {
-			reiserfs_warning(p_s_sb, "journal-1207",
+		if (real_blocks[i]->b_blocknr > SB_BLOCK_COUNT(sb)) {
+			reiserfs_warning(sb, "journal-1207",
 					 "REPLAY FAILURE fsck required! "
 					 "Block to replay is outside of "
 					 "filesystem");
@@ -2226,8 +2226,8 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 		}
 		/* make sure we don't try to replay onto log or reserved area */
 		if (is_block_in_log_or_reserved_area
-		    (p_s_sb, real_blocks[i]->b_blocknr)) {
-			reiserfs_warning(p_s_sb, "journal-1204",
+		    (sb, real_blocks[i]->b_blocknr)) {
+			reiserfs_warning(sb, "journal-1204",
 					 "REPLAY FAILURE fsck required! "
 					 "Trying to replay onto a log block");
 		      abort_replay:
@@ -2245,7 +2245,7 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 	for (i = 0; i < get_desc_trans_len(desc); i++) {
 		wait_on_buffer(log_blocks[i]);
 		if (!buffer_uptodate(log_blocks[i])) {
-			reiserfs_warning(p_s_sb, "journal-1212",
+			reiserfs_warning(sb, "journal-1212",
 					 "REPLAY FAILURE fsck required! "
 					 "buffer write failed");
 			brelse_array(log_blocks + i,
@@ -2270,7 +2270,7 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 	for (i = 0; i < get_desc_trans_len(desc); i++) {
 		wait_on_buffer(real_blocks[i]);
 		if (!buffer_uptodate(real_blocks[i])) {
-			reiserfs_warning(p_s_sb, "journal-1226",
+			reiserfs_warning(sb, "journal-1226",
 					 "REPLAY FAILURE, fsck required! "
 					 "buffer write failed");
 			brelse_array(real_blocks + i,
@@ -2284,15 +2284,15 @@ static int journal_read_transaction(struct super_block *p_s_sb,
 		brelse(real_blocks[i]);
 	}
 	cur_dblock =
-	    SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+	    SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 	    ((trans_offset + get_desc_trans_len(desc) +
-	      2) % SB_ONDISK_JOURNAL_SIZE(p_s_sb));
-	reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+	      2) % SB_ONDISK_JOURNAL_SIZE(sb));
+	reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 		       "journal-1095: setting journal " "start to offset %ld",
-		       cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb));
+		       cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(sb));
 
 	/* init starting values for the first transaction, in case this is the last transaction to be replayed. */
-	journal->j_start = cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb);
+	journal->j_start = cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(sb);
 	journal->j_last_flush_trans_id = trans_id;
 	journal->j_trans_id = trans_id + 1;
 	/* check for trans_id overflow */
@@ -2357,9 +2357,9 @@ static struct buffer_head *reiserfs_breada(struct block_device *dev,
 **
 ** On exit, it sets things up so the first transaction will work correctly.
 */
-static int journal_read(struct super_block *p_s_sb)
+static int journal_read(struct super_block *sb)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_journal_desc *desc;
 	unsigned int oldest_trans_id = 0;
 	unsigned int oldest_invalid_trans_id = 0;
@@ -2375,8 +2375,8 @@ static int journal_read(struct super_block *p_s_sb)
 	int ret;
 	char b[BDEVNAME_SIZE];
 
-	cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb);
-	reiserfs_info(p_s_sb, "checking transaction log (%s)\n",
+	cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(sb);
+	reiserfs_info(sb, "checking transaction log (%s)\n",
 		      bdevname(journal->j_dev_bd, b));
 	start = get_seconds();
 
@@ -2384,22 +2384,22 @@ static int journal_read(struct super_block *p_s_sb)
 	 ** is the first unflushed, and if that transaction is not valid,
 	 ** replay is done
 	 */
-	journal->j_header_bh = journal_bread(p_s_sb,
-					     SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb)
-					     + SB_ONDISK_JOURNAL_SIZE(p_s_sb));
+	journal->j_header_bh = journal_bread(sb,
+					     SB_ONDISK_JOURNAL_1st_BLOCK(sb)
+					     + SB_ONDISK_JOURNAL_SIZE(sb));
 	if (!journal->j_header_bh) {
 		return 1;
 	}
 	jh = (struct reiserfs_journal_header *)(journal->j_header_bh->b_data);
 	if (le32_to_cpu(jh->j_first_unflushed_offset) <
-	    SB_ONDISK_JOURNAL_SIZE(p_s_sb)
+	    SB_ONDISK_JOURNAL_SIZE(sb)
 	    && le32_to_cpu(jh->j_last_flush_trans_id) > 0) {
 		oldest_start =
-		    SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+		    SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 		    le32_to_cpu(jh->j_first_unflushed_offset);
 		oldest_trans_id = le32_to_cpu(jh->j_last_flush_trans_id) + 1;
 		newest_mount_id = le32_to_cpu(jh->j_mount_id);
-		reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+		reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 			       "journal-1153: found in "
 			       "header: first_unflushed_offset %d, last_flushed_trans_id "
 			       "%lu", le32_to_cpu(jh->j_first_unflushed_offset),
@@ -2411,10 +2411,10 @@ static int journal_read(struct super_block *p_s_sb)
 		 ** through the whole log.
 		 */
 		d_bh =
-		    journal_bread(p_s_sb,
-				  SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+		    journal_bread(sb,
+				  SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 				  le32_to_cpu(jh->j_first_unflushed_offset));
-		ret = journal_transaction_is_valid(p_s_sb, d_bh, NULL, NULL);
+		ret = journal_transaction_is_valid(sb, d_bh, NULL, NULL);
 		if (!ret) {
 			continue_replay = 0;
 		}
@@ -2422,8 +2422,8 @@ static int journal_read(struct super_block *p_s_sb)
 		goto start_log_replay;
 	}
 
-	if (continue_replay && bdev_read_only(p_s_sb->s_bdev)) {
-		reiserfs_warning(p_s_sb, "clm-2076",
+	if (continue_replay && bdev_read_only(sb->s_bdev)) {
+		reiserfs_warning(sb, "clm-2076",
 				 "device is readonly, unable to replay log");
 		return -1;
 	}
@@ -2433,17 +2433,17 @@ static int journal_read(struct super_block *p_s_sb)
 	 */
 	while (continue_replay
 	       && cur_dblock <
-	       (SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
-		SB_ONDISK_JOURNAL_SIZE(p_s_sb))) {
+	       (SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
+		SB_ONDISK_JOURNAL_SIZE(sb))) {
 		/* Note that it is required for blocksize of primary fs device and journal
 		   device to be the same */
 		d_bh =
 		    reiserfs_breada(journal->j_dev_bd, cur_dblock,
-				    p_s_sb->s_blocksize,
-				    SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
-				    SB_ONDISK_JOURNAL_SIZE(p_s_sb));
+				    sb->s_blocksize,
+				    SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
+				    SB_ONDISK_JOURNAL_SIZE(sb));
 		ret =
-		    journal_transaction_is_valid(p_s_sb, d_bh,
+		    journal_transaction_is_valid(sb, d_bh,
 						 &oldest_invalid_trans_id,
 						 &newest_mount_id);
 		if (ret == 1) {
@@ -2452,26 +2452,26 @@ static int journal_read(struct super_block *p_s_sb)
 				oldest_trans_id = get_desc_trans_id(desc);
 				oldest_start = d_bh->b_blocknr;
 				newest_mount_id = get_desc_mount_id(desc);
-				reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+				reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 					       "journal-1179: Setting "
 					       "oldest_start to offset %llu, trans_id %lu",
 					       oldest_start -
 					       SB_ONDISK_JOURNAL_1st_BLOCK
-					       (p_s_sb), oldest_trans_id);
+					       (sb), oldest_trans_id);
 			} else if (oldest_trans_id > get_desc_trans_id(desc)) {
 				/* one we just read was older */
 				oldest_trans_id = get_desc_trans_id(desc);
 				oldest_start = d_bh->b_blocknr;
-				reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+				reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 					       "journal-1180: Resetting "
 					       "oldest_start to offset %lu, trans_id %lu",
 					       oldest_start -
 					       SB_ONDISK_JOURNAL_1st_BLOCK
-					       (p_s_sb), oldest_trans_id);
+					       (sb), oldest_trans_id);
 			}
 			if (newest_mount_id < get_desc_mount_id(desc)) {
 				newest_mount_id = get_desc_mount_id(desc);
-				reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+				reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 					       "journal-1299: Setting "
 					       "newest_mount_id to %d",
 					       get_desc_mount_id(desc));
@@ -2486,17 +2486,17 @@ static int journal_read(struct super_block *p_s_sb)
       start_log_replay:
 	cur_dblock = oldest_start;
 	if (oldest_trans_id) {
-		reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+		reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 			       "journal-1206: Starting replay "
 			       "from offset %llu, trans_id %lu",
-			       cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb),
+			       cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(sb),
 			       oldest_trans_id);
 
 	}
 	replay_count = 0;
 	while (continue_replay && oldest_trans_id > 0) {
 		ret =
-		    journal_read_transaction(p_s_sb, cur_dblock, oldest_start,
+		    journal_read_transaction(sb, cur_dblock, oldest_start,
 					     oldest_trans_id, newest_mount_id);
 		if (ret < 0) {
 			return ret;
@@ -2504,14 +2504,14 @@ static int journal_read(struct super_block *p_s_sb)
 			break;
 		}
 		cur_dblock =
-		    SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + journal->j_start;
+		    SB_ONDISK_JOURNAL_1st_BLOCK(sb) + journal->j_start;
 		replay_count++;
 		if (cur_dblock == oldest_start)
 			break;
 	}
 
 	if (oldest_trans_id == 0) {
-		reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+		reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 			       "journal-1225: No valid " "transactions found");
 	}
 	/* j_start does not get set correctly if we don't replay any transactions.
@@ -2531,16 +2531,16 @@ static int journal_read(struct super_block *p_s_sb)
 	} else {
 		journal->j_mount_id = newest_mount_id + 1;
 	}
-	reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1299: Setting "
+	reiserfs_debug(sb, REISERFS_DEBUG_CODE, "journal-1299: Setting "
 		       "newest_mount_id to %lu", journal->j_mount_id);
 	journal->j_first_unflushed_offset = journal->j_start;
 	if (replay_count > 0) {
-		reiserfs_info(p_s_sb,
+		reiserfs_info(sb,
 			      "replayed %d transactions in %lu seconds\n",
 			      replay_count, get_seconds() - start);
 	}
-	if (!bdev_read_only(p_s_sb->s_bdev) &&
-	    _update_journal_header_block(p_s_sb, journal->j_start,
+	if (!bdev_read_only(sb->s_bdev) &&
+	    _update_journal_header_block(sb, journal->j_start,
 					 journal->j_last_flush_trans_id)) {
 		/* replay failed, caller must call free_journal_ram and abort
 		 ** the mount
@@ -2565,9 +2565,9 @@ static struct reiserfs_journal_list *alloc_journal_list(struct super_block *s)
 	return jl;
 }
 
-static void journal_list_init(struct super_block *p_s_sb)
+static void journal_list_init(struct super_block *sb)
 {
-	SB_JOURNAL(p_s_sb)->j_current_jl = alloc_journal_list(p_s_sb);
+	SB_JOURNAL(sb)->j_current_jl = alloc_journal_list(sb);
 }
 
 static int release_journal_dev(struct super_block *super,
@@ -2666,28 +2666,28 @@ static int journal_init_dev(struct super_block *super,
  */
 #define REISERFS_STANDARD_BLKSIZE (4096)
 
-static int check_advise_trans_params(struct super_block *p_s_sb,
+static int check_advise_trans_params(struct super_block *sb,
 				     struct reiserfs_journal *journal)
 {
         if (journal->j_trans_max) {
 	        /* Non-default journal params.
 		   Do sanity check for them. */
 	        int ratio = 1;
-		if (p_s_sb->s_blocksize < REISERFS_STANDARD_BLKSIZE)
-		        ratio = REISERFS_STANDARD_BLKSIZE / p_s_sb->s_blocksize;
+		if (sb->s_blocksize < REISERFS_STANDARD_BLKSIZE)
+		        ratio = REISERFS_STANDARD_BLKSIZE / sb->s_blocksize;
 
 		if (journal->j_trans_max > JOURNAL_TRANS_MAX_DEFAULT / ratio ||
 		    journal->j_trans_max < JOURNAL_TRANS_MIN_DEFAULT / ratio ||
-		    SB_ONDISK_JOURNAL_SIZE(p_s_sb) / journal->j_trans_max <
+		    SB_ONDISK_JOURNAL_SIZE(sb) / journal->j_trans_max <
 		    JOURNAL_MIN_RATIO) {
-			reiserfs_warning(p_s_sb, "sh-462",
+			reiserfs_warning(sb, "sh-462",
 					 "bad transaction max size (%u). "
 					 "FSCK?", journal->j_trans_max);
 			return 1;
 		}
 		if (journal->j_max_batch != (journal->j_trans_max) *
 		        JOURNAL_MAX_BATCH_DEFAULT/JOURNAL_TRANS_MAX_DEFAULT) {
-			reiserfs_warning(p_s_sb, "sh-463",
+			reiserfs_warning(sb, "sh-463",
 					 "bad transaction max batch (%u). "
 					 "FSCK?", journal->j_max_batch);
 			return 1;
@@ -2697,9 +2697,9 @@ static int check_advise_trans_params(struct super_block *p_s_sb,
                    The file system was created by old version
 		   of mkreiserfs, so some fields contain zeros,
 		   and we need to advise proper values for them */
-		if (p_s_sb->s_blocksize != REISERFS_STANDARD_BLKSIZE) {
-			reiserfs_warning(p_s_sb, "sh-464", "bad blocksize (%u)",
-					 p_s_sb->s_blocksize);
+		if (sb->s_blocksize != REISERFS_STANDARD_BLKSIZE) {
+			reiserfs_warning(sb, "sh-464", "bad blocksize (%u)",
+					 sb->s_blocksize);
 			return 1;
 		}
 		journal->j_trans_max = JOURNAL_TRANS_MAX_DEFAULT;
@@ -2712,10 +2712,10 @@ static int check_advise_trans_params(struct super_block *p_s_sb,
 /*
 ** must be called once on fs mount.  calls journal_read for you
 */
-int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
+int journal_init(struct super_block *sb, const char *j_dev_name,
 		 int old_format, unsigned int commit_max_age)
 {
-	int num_cnodes = SB_ONDISK_JOURNAL_SIZE(p_s_sb) * 2;
+	int num_cnodes = SB_ONDISK_JOURNAL_SIZE(sb) * 2;
 	struct buffer_head *bhjh;
 	struct reiserfs_super_block *rs;
 	struct reiserfs_journal_header *jh;
@@ -2723,9 +2723,9 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	struct reiserfs_journal_list *jl;
 	char b[BDEVNAME_SIZE];
 
-	journal = SB_JOURNAL(p_s_sb) = vmalloc(sizeof(struct reiserfs_journal));
+	journal = SB_JOURNAL(sb) = vmalloc(sizeof(struct reiserfs_journal));
 	if (!journal) {
-		reiserfs_warning(p_s_sb, "journal-1256",
+		reiserfs_warning(sb, "journal-1256",
 				 "unable to get memory for journal structure");
 		return 1;
 	}
@@ -2735,50 +2735,50 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	INIT_LIST_HEAD(&journal->j_working_list);
 	INIT_LIST_HEAD(&journal->j_journal_list);
 	journal->j_persistent_trans = 0;
-	if (reiserfs_allocate_list_bitmaps(p_s_sb,
+	if (reiserfs_allocate_list_bitmaps(sb,
 					   journal->j_list_bitmap,
-					   reiserfs_bmap_count(p_s_sb)))
+					   reiserfs_bmap_count(sb)))
 		goto free_and_return;
-	allocate_bitmap_nodes(p_s_sb);
+	allocate_bitmap_nodes(sb);
 
 	/* reserved for journal area support */
-	SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb) = (old_format ?
+	SB_JOURNAL_1st_RESERVED_BLOCK(sb) = (old_format ?
 						 REISERFS_OLD_DISK_OFFSET_IN_BYTES
-						 / p_s_sb->s_blocksize +
-						 reiserfs_bmap_count(p_s_sb) +
+						 / sb->s_blocksize +
+						 reiserfs_bmap_count(sb) +
 						 1 :
 						 REISERFS_DISK_OFFSET_IN_BYTES /
-						 p_s_sb->s_blocksize + 2);
+						 sb->s_blocksize + 2);
 
 	/* Sanity check to see is the standard journal fitting withing first bitmap
 	   (actual for small blocksizes) */
-	if (!SB_ONDISK_JOURNAL_DEVICE(p_s_sb) &&
-	    (SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb) +
-	     SB_ONDISK_JOURNAL_SIZE(p_s_sb) > p_s_sb->s_blocksize * 8)) {
-		reiserfs_warning(p_s_sb, "journal-1393",
+	if (!SB_ONDISK_JOURNAL_DEVICE(sb) &&
+	    (SB_JOURNAL_1st_RESERVED_BLOCK(sb) +
+	     SB_ONDISK_JOURNAL_SIZE(sb) > sb->s_blocksize * 8)) {
+		reiserfs_warning(sb, "journal-1393",
 				 "journal does not fit for area addressed "
 				 "by first of bitmap blocks. It starts at "
 				 "%u and its size is %u. Block size %ld",
-				 SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb),
-				 SB_ONDISK_JOURNAL_SIZE(p_s_sb),
-				 p_s_sb->s_blocksize);
+				 SB_JOURNAL_1st_RESERVED_BLOCK(sb),
+				 SB_ONDISK_JOURNAL_SIZE(sb),
+				 sb->s_blocksize);
 		goto free_and_return;
 	}
 
-	if (journal_init_dev(p_s_sb, journal, j_dev_name) != 0) {
-		reiserfs_warning(p_s_sb, "sh-462",
+	if (journal_init_dev(sb, journal, j_dev_name) != 0) {
+		reiserfs_warning(sb, "sh-462",
 				 "unable to initialize jornal device");
 		goto free_and_return;
 	}
 
-	rs = SB_DISK_SUPER_BLOCK(p_s_sb);
+	rs = SB_DISK_SUPER_BLOCK(sb);
 
 	/* read journal header */
-	bhjh = journal_bread(p_s_sb,
-			     SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
-			     SB_ONDISK_JOURNAL_SIZE(p_s_sb));
+	bhjh = journal_bread(sb,
+			     SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
+			     SB_ONDISK_JOURNAL_SIZE(sb));
 	if (!bhjh) {
-		reiserfs_warning(p_s_sb, "sh-459",
+		reiserfs_warning(sb, "sh-459",
 				 "unable to read journal header");
 		goto free_and_return;
 	}
@@ -2788,7 +2788,7 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	if (is_reiserfs_jr(rs)
 	    && (le32_to_cpu(jh->jh_journal.jp_journal_magic) !=
 		sb_jp_journal_magic(rs))) {
-		reiserfs_warning(p_s_sb, "sh-460",
+		reiserfs_warning(sb, "sh-460",
 				 "journal header magic %x (device %s) does "
 				 "not match to magic found in super block %x",
 				 jh->jh_journal.jp_journal_magic,
@@ -2804,7 +2804,7 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	    le32_to_cpu(jh->jh_journal.jp_journal_max_commit_age);
 	journal->j_max_trans_age = JOURNAL_MAX_TRANS_AGE;
 
-	if (check_advise_trans_params(p_s_sb, journal) != 0)
+	if (check_advise_trans_params(sb, journal) != 0)
 	        goto free_and_return;
 	journal->j_default_max_commit_age = journal->j_max_commit_age;
 
@@ -2813,12 +2813,12 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 		journal->j_max_trans_age = commit_max_age;
 	}
 
-	reiserfs_info(p_s_sb, "journal params: device %s, size %u, "
+	reiserfs_info(sb, "journal params: device %s, size %u, "
 		      "journal first block %u, max trans len %u, max batch %u, "
 		      "max commit age %u, max trans age %u\n",
 		      bdevname(journal->j_dev_bd, b),
-		      SB_ONDISK_JOURNAL_SIZE(p_s_sb),
-		      SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb),
+		      SB_ONDISK_JOURNAL_SIZE(sb),
+		      SB_ONDISK_JOURNAL_1st_BLOCK(sb),
 		      journal->j_trans_max,
 		      journal->j_max_batch,
 		      journal->j_max_commit_age, journal->j_max_trans_age);
@@ -2826,7 +2826,7 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	brelse(bhjh);
 
 	journal->j_list_bitmap_index = 0;
-	journal_list_init(p_s_sb);
+	journal_list_init(sb);
 
 	memset(journal->j_list_hash_table, 0,
 	       JOURNAL_HASH_SIZE * sizeof(struct reiserfs_journal_cnode *));
@@ -2858,7 +2858,7 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 	journal->j_must_wait = 0;
 
 	if (journal->j_cnode_free == 0) {
-		reiserfs_warning(p_s_sb, "journal-2004", "Journal cnode memory "
+		reiserfs_warning(sb, "journal-2004", "Journal cnode memory "
 		                 "allocation failed (%ld bytes). Journal is "
 		                 "too large for available memory. Usually "
 		                 "this is due to a journal that is too large.",
@@ -2866,16 +2866,16 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
         	goto free_and_return;
 	}
 
-	init_journal_hash(p_s_sb);
+	init_journal_hash(sb);
 	jl = journal->j_current_jl;
-	jl->j_list_bitmap = get_list_bitmap(p_s_sb, jl);
+	jl->j_list_bitmap = get_list_bitmap(sb, jl);
 	if (!jl->j_list_bitmap) {
-		reiserfs_warning(p_s_sb, "journal-2005",
+		reiserfs_warning(sb, "journal-2005",
 				 "get_list_bitmap failed for journal list 0");
 		goto free_and_return;
 	}
-	if (journal_read(p_s_sb) < 0) {
-		reiserfs_warning(p_s_sb, "reiserfs-2006",
+	if (journal_read(sb) < 0) {
+		reiserfs_warning(sb, "reiserfs-2006",
 				 "Replay Failure, unable to mount");
 		goto free_and_return;
 	}
@@ -2885,10 +2885,10 @@ int journal_init(struct super_block *p_s_sb, const char *j_dev_name,
 		commit_wq = create_workqueue("reiserfs");
 
 	INIT_DELAYED_WORK(&journal->j_work, flush_async_commits);
-	journal->j_work_sb = p_s_sb;
+	journal->j_work_sb = sb;
 	return 0;
       free_and_return:
-	free_journal_ram(p_s_sb);
+	free_journal_ram(sb);
 	return 1;
 }
 
@@ -3004,37 +3004,37 @@ static void let_transaction_grow(struct super_block *sb, unsigned int trans_id)
 ** expect to use in nblocks.
 */
 static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
-			      struct super_block *p_s_sb, unsigned long nblocks,
+			      struct super_block *sb, unsigned long nblocks,
 			      int join)
 {
 	time_t now = get_seconds();
 	unsigned int old_trans_id;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_transaction_handle myth;
 	int sched_count = 0;
 	int retval;
 
-	reiserfs_check_lock_depth(p_s_sb, "journal_begin");
+	reiserfs_check_lock_depth(sb, "journal_begin");
 	BUG_ON(nblocks > journal->j_trans_max);
 
-	PROC_INFO_INC(p_s_sb, journal.journal_being);
+	PROC_INFO_INC(sb, journal.journal_being);
 	/* set here for journal_join */
 	th->t_refcount = 1;
-	th->t_super = p_s_sb;
+	th->t_super = sb;
 
       relock:
-	lock_journal(p_s_sb);
+	lock_journal(sb);
 	if (join != JBEGIN_ABORT && reiserfs_is_journal_aborted(journal)) {
-		unlock_journal(p_s_sb);
+		unlock_journal(sb);
 		retval = journal->j_errno;
 		goto out_fail;
 	}
 	journal->j_bcount++;
 
 	if (test_bit(J_WRITERS_BLOCKED, &journal->j_state)) {
-		unlock_journal(p_s_sb);
-		reiserfs_wait_on_write_block(p_s_sb);
-		PROC_INFO_INC(p_s_sb, journal.journal_relock_writers);
+		unlock_journal(sb);
+		reiserfs_wait_on_write_block(sb);
+		PROC_INFO_INC(sb, journal.journal_relock_writers);
 		goto relock;
 	}
 	now = get_seconds();
@@ -3055,7 +3055,7 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
 	    || (!join && journal->j_cnode_free < (journal->j_trans_max * 3))) {
 
 		old_trans_id = journal->j_trans_id;
-		unlock_journal(p_s_sb);	/* allow others to finish this transaction */
+		unlock_journal(sb);	/* allow others to finish this transaction */
 
 		if (!join && (journal->j_len_alloc + nblocks + 2) >=
 		    journal->j_max_batch &&
@@ -3063,7 +3063,7 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
 		    (journal->j_len_alloc * 75)) {
 			if (atomic_read(&journal->j_wcount) > 10) {
 				sched_count++;
-				queue_log_writer(p_s_sb);
+				queue_log_writer(sb);
 				goto relock;
 			}
 		}
@@ -3073,25 +3073,25 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
 		if (atomic_read(&journal->j_jlock)) {
 			while (journal->j_trans_id == old_trans_id &&
 			       atomic_read(&journal->j_jlock)) {
-				queue_log_writer(p_s_sb);
+				queue_log_writer(sb);
 			}
 			goto relock;
 		}
-		retval = journal_join(&myth, p_s_sb, 1);
+		retval = journal_join(&myth, sb, 1);
 		if (retval)
 			goto out_fail;
 
 		/* someone might have ended the transaction while we joined */
 		if (old_trans_id != journal->j_trans_id) {
-			retval = do_journal_end(&myth, p_s_sb, 1, 0);
+			retval = do_journal_end(&myth, sb, 1, 0);
 		} else {
-			retval = do_journal_end(&myth, p_s_sb, 1, COMMIT_NOW);
+			retval = do_journal_end(&myth, sb, 1, COMMIT_NOW);
 		}
 
 		if (retval)
 			goto out_fail;
 
-		PROC_INFO_INC(p_s_sb, journal.journal_relock_wcount);
+		PROC_INFO_INC(sb, journal.journal_relock_wcount);
 		goto relock;
 	}
 	/* we are the first writer, set trans_id */
@@ -3103,7 +3103,7 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
 	th->t_blocks_logged = 0;
 	th->t_blocks_allocated = nblocks;
 	th->t_trans_id = journal->j_trans_id;
-	unlock_journal(p_s_sb);
+	unlock_journal(sb);
 	INIT_LIST_HEAD(&th->t_list);
 	get_fs_excl();
 	return 0;
@@ -3113,7 +3113,7 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
 	/* Re-set th->t_super, so we can properly keep track of how many
 	 * persistent transactions there are. We need to do this so if this
 	 * call is part of a failed restart_transaction, we can free it later */
-	th->t_super = p_s_sb;
+	th->t_super = sb;
 	return retval;
 }
 
@@ -3164,7 +3164,7 @@ int reiserfs_end_persistent_transaction(struct reiserfs_transaction_handle *th)
 }
 
 static int journal_join(struct reiserfs_transaction_handle *th,
-			struct super_block *p_s_sb, unsigned long nblocks)
+			struct super_block *sb, unsigned long nblocks)
 {
 	struct reiserfs_transaction_handle *cur_th = current->journal_info;
 
@@ -3173,11 +3173,11 @@ static int journal_join(struct reiserfs_transaction_handle *th,
 	 */
 	th->t_handle_save = cur_th;
 	BUG_ON(cur_th && cur_th->t_refcount > 1);
-	return do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_JOIN);
+	return do_journal_begin_r(th, sb, nblocks, JBEGIN_JOIN);
 }
 
 int journal_join_abort(struct reiserfs_transaction_handle *th,
-		       struct super_block *p_s_sb, unsigned long nblocks)
+		       struct super_block *sb, unsigned long nblocks)
 {
 	struct reiserfs_transaction_handle *cur_th = current->journal_info;
 
@@ -3186,11 +3186,11 @@ int journal_join_abort(struct reiserfs_transaction_handle *th,
 	 */
 	th->t_handle_save = cur_th;
 	BUG_ON(cur_th && cur_th->t_refcount > 1);
-	return do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_ABORT);
+	return do_journal_begin_r(th, sb, nblocks, JBEGIN_ABORT);
 }
 
 int journal_begin(struct reiserfs_transaction_handle *th,
-		  struct super_block *p_s_sb, unsigned long nblocks)
+		  struct super_block *sb, unsigned long nblocks)
 {
 	struct reiserfs_transaction_handle *cur_th = current->journal_info;
 	int ret;
@@ -3198,12 +3198,12 @@ int journal_begin(struct reiserfs_transaction_handle *th,
 	th->t_handle_save = NULL;
 	if (cur_th) {
 		/* we are nesting into the current transaction */
-		if (cur_th->t_super == p_s_sb) {
+		if (cur_th->t_super == sb) {
 			BUG_ON(!cur_th->t_refcount);
 			cur_th->t_refcount++;
 			memcpy(th, cur_th, sizeof(*th));
 			if (th->t_refcount <= 1)
-				reiserfs_warning(p_s_sb, "reiserfs-2005",
+				reiserfs_warning(sb, "reiserfs-2005",
 						 "BAD: refcount <= 1, but "
 						 "journal_info != 0");
 			return 0;
@@ -3212,7 +3212,7 @@ int journal_begin(struct reiserfs_transaction_handle *th,
 			 ** save it and restore on journal_end.  This should never
 			 ** really happen...
 			 */
-			reiserfs_warning(p_s_sb, "clm-2100",
+			reiserfs_warning(sb, "clm-2100",
 					 "nesting info a different FS");
 			th->t_handle_save = current->journal_info;
 			current->journal_info = th;
@@ -3220,7 +3220,7 @@ int journal_begin(struct reiserfs_transaction_handle *th,
 	} else {
 		current->journal_info = th;
 	}
-	ret = do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_REG);
+	ret = do_journal_begin_r(th, sb, nblocks, JBEGIN_REG);
 	BUG_ON(current->journal_info != th);
 
 	/* I guess this boils down to being the reciprocal of clm-2100 above.
@@ -3244,28 +3244,28 @@ int journal_begin(struct reiserfs_transaction_handle *th,
 ** if j_len, is bigger than j_len_alloc, it pushes j_len_alloc to 10 + j_len.
 */
 int journal_mark_dirty(struct reiserfs_transaction_handle *th,
-		       struct super_block *p_s_sb, struct buffer_head *bh)
+		       struct super_block *sb, struct buffer_head *bh)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_journal_cnode *cn = NULL;
 	int count_already_incd = 0;
 	int prepared = 0;
 	BUG_ON(!th->t_trans_id);
 
-	PROC_INFO_INC(p_s_sb, journal.mark_dirty);
+	PROC_INFO_INC(sb, journal.mark_dirty);
 	if (th->t_trans_id != journal->j_trans_id) {
 		reiserfs_panic(th->t_super, "journal-1577",
 			       "handle trans id %ld != current trans id %ld",
 			       th->t_trans_id, journal->j_trans_id);
 	}
 
-	p_s_sb->s_dirt = 1;
+	sb->s_dirt = 1;
 
 	prepared = test_clear_buffer_journal_prepared(bh);
 	clear_buffer_journal_restore_dirty(bh);
 	/* already in this transaction, we are done */
 	if (buffer_journaled(bh)) {
-		PROC_INFO_INC(p_s_sb, journal.mark_dirty_already);
+		PROC_INFO_INC(sb, journal.mark_dirty_already);
 		return 0;
 	}
 
@@ -3274,7 +3274,7 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 	 ** could get to disk too early.  NOT GOOD.
 	 */
 	if (!prepared || buffer_dirty(bh)) {
-		reiserfs_warning(p_s_sb, "journal-1777",
+		reiserfs_warning(sb, "journal-1777",
 				 "buffer %llu bad state "
 				 "%cPREPARED %cLOCKED %cDIRTY %cJDIRTY_WAIT",
 				 (unsigned long long)bh->b_blocknr,
@@ -3285,7 +3285,7 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 	}
 
 	if (atomic_read(&(journal->j_wcount)) <= 0) {
-		reiserfs_warning(p_s_sb, "journal-1409",
+		reiserfs_warning(sb, "journal-1409",
 				 "returning because j_wcount was %d",
 				 atomic_read(&(journal->j_wcount)));
 		return 1;
@@ -3301,7 +3301,7 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 
 	if (buffer_journal_dirty(bh)) {
 		count_already_incd = 1;
-		PROC_INFO_INC(p_s_sb, journal.mark_dirty_notjournal);
+		PROC_INFO_INC(sb, journal.mark_dirty_notjournal);
 		clear_buffer_journal_dirty(bh);
 	}
 
@@ -3313,10 +3313,9 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 
 	/* now put this guy on the end */
 	if (!cn) {
-		cn = get_cnode(p_s_sb);
+		cn = get_cnode(sb);
 		if (!cn) {
-			reiserfs_panic(p_s_sb, "journal-4",
-				       "get_cnode failed!");
+			reiserfs_panic(sb, "journal-4", "get_cnode failed!");
 		}
 
 		if (th->t_blocks_logged == th->t_blocks_allocated) {
@@ -3328,7 +3327,7 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 
 		cn->bh = bh;
 		cn->blocknr = bh->b_blocknr;
-		cn->sb = p_s_sb;
+		cn->sb = sb;
 		cn->jlist = NULL;
 		insert_journal_hash(journal->j_hash_table, cn);
 		if (!count_already_incd) {
@@ -3349,10 +3348,10 @@ int journal_mark_dirty(struct reiserfs_transaction_handle *th,
 }
 
 int journal_end(struct reiserfs_transaction_handle *th,
-		struct super_block *p_s_sb, unsigned long nblocks)
+		struct super_block *sb, unsigned long nblocks)
 {
 	if (!current->journal_info && th->t_refcount > 1)
-		reiserfs_warning(p_s_sb, "REISER-NESTING",
+		reiserfs_warning(sb, "REISER-NESTING",
 				 "th NULL, refcount %d", th->t_refcount);
 
 	if (!th->t_trans_id) {
@@ -3376,7 +3375,7 @@ int journal_end(struct reiserfs_transaction_handle *th,
 		}
 		return 0;
 	} else {
-		return do_journal_end(th, p_s_sb, nblocks, 0);
+		return do_journal_end(th, sb, nblocks, 0);
 	}
 }
 
@@ -3387,15 +3386,15 @@ int journal_end(struct reiserfs_transaction_handle *th,
 **
 ** returns 1 if it cleaned and relsed the buffer. 0 otherwise
 */
-static int remove_from_transaction(struct super_block *p_s_sb,
+static int remove_from_transaction(struct super_block *sb,
 				   b_blocknr_t blocknr, int already_cleaned)
 {
 	struct buffer_head *bh;
 	struct reiserfs_journal_cnode *cn;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	int ret = 0;
 
-	cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, blocknr);
+	cn = get_journal_hash_dev(sb, journal->j_hash_table, blocknr);
 	if (!cn || !cn->bh) {
 		return ret;
 	}
@@ -3413,7 +3412,7 @@ static int remove_from_transaction(struct super_block *p_s_sb,
 		journal->j_last = cn->prev;
 	}
 	if (bh)
-		remove_journal_hash(p_s_sb, journal->j_hash_table, NULL,
+		remove_journal_hash(sb, journal->j_hash_table, NULL,
 				    bh->b_blocknr, 0);
 	clear_buffer_journaled(bh);	/* don't log this one */
 
@@ -3423,14 +3422,14 @@ static int remove_from_transaction(struct super_block *p_s_sb,
 		clear_buffer_journal_test(bh);
 		put_bh(bh);
 		if (atomic_read(&(bh->b_count)) < 0) {
-			reiserfs_warning(p_s_sb, "journal-1752",
+			reiserfs_warning(sb, "journal-1752",
 					 "b_count < 0");
 		}
 		ret = 1;
 	}
 	journal->j_len--;
 	journal->j_len_alloc--;
-	free_cnode(p_s_sb, cn);
+	free_cnode(sb, cn);
 	return ret;
 }
 
@@ -3481,19 +3480,19 @@ static int can_dirty(struct reiserfs_journal_cnode *cn)
 ** will wait until the current transaction is done/committed before returning
 */
 int journal_end_sync(struct reiserfs_transaction_handle *th,
-		     struct super_block *p_s_sb, unsigned long nblocks)
+		     struct super_block *sb, unsigned long nblocks)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 
 	BUG_ON(!th->t_trans_id);
 	/* you can sync while nested, very, very bad */
 	BUG_ON(th->t_refcount > 1);
 	if (journal->j_len == 0) {
-		reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb),
+		reiserfs_prepare_for_journal(sb, SB_BUFFER_WITH_SB(sb),
 					     1);
-		journal_mark_dirty(th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb));
+		journal_mark_dirty(th, sb, SB_BUFFER_WITH_SB(sb));
 	}
-	return do_journal_end(th, p_s_sb, nblocks, COMMIT_NOW | WAIT);
+	return do_journal_end(th, sb, nblocks, COMMIT_NOW | WAIT);
 }
 
 /*
@@ -3503,7 +3502,7 @@ static void flush_async_commits(struct work_struct *work)
 {
 	struct reiserfs_journal *journal =
 		container_of(work, struct reiserfs_journal, j_work.work);
-	struct super_block *p_s_sb = journal->j_work_sb;
+	struct super_block *sb = journal->j_work_sb;
 	struct reiserfs_journal_list *jl;
 	struct list_head *entry;
 
@@ -3512,7 +3511,7 @@ static void flush_async_commits(struct work_struct *work)
 		/* last entry is the youngest, commit it and you get everything */
 		entry = journal->j_journal_list.prev;
 		jl = JOURNAL_LIST_ENTRY(entry);
-		flush_commit_list(p_s_sb, jl, 1);
+		flush_commit_list(sb, jl, 1);
 	}
 	unlock_kernel();
 }
@@ -3521,11 +3520,11 @@ static void flush_async_commits(struct work_struct *work)
 ** flushes any old transactions to disk
 ** ends the current transaction if it is too old
 */
-int reiserfs_flush_old_commits(struct super_block *p_s_sb)
+int reiserfs_flush_old_commits(struct super_block *sb)
 {
 	time_t now;
 	struct reiserfs_transaction_handle th;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 
 	now = get_seconds();
 	/* safety check so we don't flush while we are replaying the log during
@@ -3542,20 +3541,20 @@ int reiserfs_flush_old_commits(struct super_block *p_s_sb)
 	    journal->j_trans_start_time > 0 &&
 	    journal->j_len > 0 &&
 	    (now - journal->j_trans_start_time) > journal->j_max_trans_age) {
-		if (!journal_join(&th, p_s_sb, 1)) {
-			reiserfs_prepare_for_journal(p_s_sb,
-						     SB_BUFFER_WITH_SB(p_s_sb),
+		if (!journal_join(&th, sb, 1)) {
+			reiserfs_prepare_for_journal(sb,
+						     SB_BUFFER_WITH_SB(sb),
 						     1);
-			journal_mark_dirty(&th, p_s_sb,
-					   SB_BUFFER_WITH_SB(p_s_sb));
+			journal_mark_dirty(&th, sb,
+					   SB_BUFFER_WITH_SB(sb));
 
 			/* we're only being called from kreiserfsd, it makes no sense to do
 			 ** an async commit so that kreiserfsd can do it later
 			 */
-			do_journal_end(&th, p_s_sb, 1, COMMIT_NOW | WAIT);
+			do_journal_end(&th, sb, 1, COMMIT_NOW | WAIT);
 		}
 	}
-	return p_s_sb->s_dirt;
+	return sb->s_dirt;
 }
 
 /*
@@ -3570,7 +3569,7 @@ int reiserfs_flush_old_commits(struct super_block *p_s_sb)
 ** Note, we can't allow the journal_end to proceed while there are still writers in the log.
 */
 static int check_journal_end(struct reiserfs_transaction_handle *th,
-			     struct super_block *p_s_sb, unsigned long nblocks,
+			     struct super_block *sb, unsigned long nblocks,
 			     int flags)
 {
 
@@ -3579,7 +3578,7 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 	int commit_now = flags & COMMIT_NOW;
 	int wait_on_commit = flags & WAIT;
 	struct reiserfs_journal_list *jl;
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 
 	BUG_ON(!th->t_trans_id);
 
@@ -3618,31 +3617,31 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 			if (flush) {
 				journal->j_next_full_flush = 1;
 			}
-			unlock_journal(p_s_sb);
+			unlock_journal(sb);
 
 			/* sleep while the current transaction is still j_jlocked */
 			while (journal->j_trans_id == trans_id) {
 				if (atomic_read(&journal->j_jlock)) {
-					queue_log_writer(p_s_sb);
+					queue_log_writer(sb);
 				} else {
-					lock_journal(p_s_sb);
+					lock_journal(sb);
 					if (journal->j_trans_id == trans_id) {
 						atomic_set(&(journal->j_jlock),
 							   1);
 					}
-					unlock_journal(p_s_sb);
+					unlock_journal(sb);
 				}
 			}
 			BUG_ON(journal->j_trans_id == trans_id);
 			
 			if (commit_now
-			    && journal_list_still_alive(p_s_sb, trans_id)
+			    && journal_list_still_alive(sb, trans_id)
 			    && wait_on_commit) {
-				flush_commit_list(p_s_sb, jl, 1);
+				flush_commit_list(sb, jl, 1);
 			}
 			return 0;
 		}
-		unlock_journal(p_s_sb);
+		unlock_journal(sb);
 		return 0;
 	}
 
@@ -3659,12 +3658,12 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 	    && journal->j_len_alloc < journal->j_max_batch
 	    && journal->j_cnode_free > (journal->j_trans_max * 3)) {
 		journal->j_bcount++;
-		unlock_journal(p_s_sb);
+		unlock_journal(sb);
 		return 0;
 	}
 
-	if (journal->j_start > SB_ONDISK_JOURNAL_SIZE(p_s_sb)) {
-		reiserfs_panic(p_s_sb, "journal-003",
+	if (journal->j_start > SB_ONDISK_JOURNAL_SIZE(sb)) {
+		reiserfs_panic(sb, "journal-003",
 			       "j_start (%ld) is too high",
 			       journal->j_start);
 	}
@@ -3686,16 +3685,16 @@ static int check_journal_end(struct reiserfs_transaction_handle *th,
 ** Then remove it from the current transaction, decrementing any counters and filing it on the clean list.
 */
 int journal_mark_freed(struct reiserfs_transaction_handle *th,
-		       struct super_block *p_s_sb, b_blocknr_t blocknr)
+		       struct super_block *sb, b_blocknr_t blocknr)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_journal_cnode *cn = NULL;
 	struct buffer_head *bh = NULL;
 	struct reiserfs_list_bitmap *jb = NULL;
 	int cleaned = 0;
 	BUG_ON(!th->t_trans_id);
 
-	cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, blocknr);
+	cn = get_journal_hash_dev(sb, journal->j_hash_table, blocknr);
 	if (cn && cn->bh) {
 		bh = cn->bh;
 		get_bh(bh);
@@ -3705,15 +3704,15 @@ int journal_mark_freed(struct reiserfs_transaction_handle *th,
 		clear_buffer_journal_new(bh);
 		clear_prepared_bits(bh);
 		reiserfs_clean_and_file_buffer(bh);
-		cleaned = remove_from_transaction(p_s_sb, blocknr, cleaned);
+		cleaned = remove_from_transaction(sb, blocknr, cleaned);
 	} else {
 		/* set the bit for this block in the journal bitmap for this transaction */
 		jb = journal->j_current_jl->j_list_bitmap;
 		if (!jb) {
-			reiserfs_panic(p_s_sb, "journal-1702",
+			reiserfs_panic(sb, "journal-1702",
 				       "journal_list_bitmap is NULL");
 		}
-		set_bit_in_list_bitmap(p_s_sb, blocknr, jb);
+		set_bit_in_list_bitmap(sb, blocknr, jb);
 
 		/* Note, the entire while loop is not allowed to schedule.  */
 
@@ -3721,13 +3720,13 @@ int journal_mark_freed(struct reiserfs_transaction_handle *th,
 			clear_prepared_bits(bh);
 			reiserfs_clean_and_file_buffer(bh);
 		}
-		cleaned = remove_from_transaction(p_s_sb, blocknr, cleaned);
+		cleaned = remove_from_transaction(sb, blocknr, cleaned);
 
 		/* find all older transactions with this block, make sure they don't try to write it out */
-		cn = get_journal_hash_dev(p_s_sb, journal->j_list_hash_table,
+		cn = get_journal_hash_dev(sb, journal->j_list_hash_table,
 					  blocknr);
 		while (cn) {
-			if (p_s_sb == cn->sb && blocknr == cn->blocknr) {
+			if (sb == cn->sb && blocknr == cn->blocknr) {
 				set_bit(BLOCK_FREED, &cn->state);
 				if (cn->bh) {
 					if (!cleaned) {
@@ -3743,7 +3742,7 @@ int journal_mark_freed(struct reiserfs_transaction_handle *th,
 						put_bh(cn->bh);
 						if (atomic_read
 						    (&(cn->bh->b_count)) < 0) {
-							reiserfs_warning(p_s_sb,
+							reiserfs_warning(sb,
 								 "journal-2138",
 								 "cn->bh->b_count < 0");
 						}
@@ -3850,18 +3849,18 @@ int reiserfs_commit_for_inode(struct inode *inode)
 	return __commit_trans_jl(inode, id, jl);
 }
 
-void reiserfs_restore_prepared_buffer(struct super_block *p_s_sb,
+void reiserfs_restore_prepared_buffer(struct super_block *sb,
 				      struct buffer_head *bh)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
-	PROC_INFO_INC(p_s_sb, journal.restore_prepared);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
+	PROC_INFO_INC(sb, journal.restore_prepared);
 	if (!bh) {
 		return;
 	}
 	if (test_clear_buffer_journal_restore_dirty(bh) &&
 	    buffer_journal_dirty(bh)) {
 		struct reiserfs_journal_cnode *cn;
-		cn = get_journal_hash_dev(p_s_sb,
+		cn = get_journal_hash_dev(sb,
 					  journal->j_list_hash_table,
 					  bh->b_blocknr);
 		if (cn && can_dirty(cn)) {
@@ -3880,10 +3879,10 @@ extern struct tree_balance *cur_tb;
 ** wait on it.
 **
 */
-int reiserfs_prepare_for_journal(struct super_block *p_s_sb,
+int reiserfs_prepare_for_journal(struct super_block *sb,
 				 struct buffer_head *bh, int wait)
 {
-	PROC_INFO_INC(p_s_sb, journal.prepare);
+	PROC_INFO_INC(sb, journal.prepare);
 
 	if (!trylock_buffer(bh)) {
 		if (!wait)
@@ -3931,10 +3930,10 @@ static void flush_old_journal_lists(struct super_block *s)
 ** journal lists, etc just won't happen.
 */
 static int do_journal_end(struct reiserfs_transaction_handle *th,
-			  struct super_block *p_s_sb, unsigned long nblocks,
+			  struct super_block *sb, unsigned long nblocks,
 			  int flags)
 {
-	struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb);
+	struct reiserfs_journal *journal = SB_JOURNAL(sb);
 	struct reiserfs_journal_cnode *cn, *next, *jl_cn;
 	struct reiserfs_journal_cnode *last_cn = NULL;
 	struct reiserfs_journal_desc *desc;
@@ -3964,14 +3963,14 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 
 	put_fs_excl();
 	current->journal_info = th->t_handle_save;
-	reiserfs_check_lock_depth(p_s_sb, "journal end");
+	reiserfs_check_lock_depth(sb, "journal end");
 	if (journal->j_len == 0) {
-		reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb),
+		reiserfs_prepare_for_journal(sb, SB_BUFFER_WITH_SB(sb),
 					     1);
-		journal_mark_dirty(th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb));
+		journal_mark_dirty(th, sb, SB_BUFFER_WITH_SB(sb));
 	}
 
-	lock_journal(p_s_sb);
+	lock_journal(sb);
 	if (journal->j_next_full_flush) {
 		flags |= FLUSH_ALL;
 		flush = 1;
@@ -3984,10 +3983,10 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	/* check_journal_end locks the journal, and unlocks if it does not return 1
 	 ** it tells us if we should continue with the journal_end, or just return
 	 */
-	if (!check_journal_end(th, p_s_sb, nblocks, flags)) {
-		p_s_sb->s_dirt = 1;
-		wake_queued_writers(p_s_sb);
-		reiserfs_async_progress_wait(p_s_sb);
+	if (!check_journal_end(th, sb, nblocks, flags)) {
+		sb->s_dirt = 1;
+		wake_queued_writers(sb);
+		reiserfs_async_progress_wait(sb);
 		goto out;
 	}
 
@@ -4016,8 +4015,8 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 
 	/* setup description block */
 	d_bh =
-	    journal_getblk(p_s_sb,
-			   SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+	    journal_getblk(sb,
+			   SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 			   journal->j_start);
 	set_buffer_uptodate(d_bh);
 	desc = (struct reiserfs_journal_desc *)(d_bh)->b_data;
@@ -4026,9 +4025,9 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	set_desc_trans_id(desc, journal->j_trans_id);
 
 	/* setup commit block.  Don't write (keep it clean too) this one until after everyone else is written */
-	c_bh = journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+	c_bh = journal_getblk(sb, SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 			      ((journal->j_start + journal->j_len +
-				1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb)));
+				1) % SB_ONDISK_JOURNAL_SIZE(sb)));
 	commit = (struct reiserfs_journal_commit *)c_bh->b_data;
 	memset(c_bh->b_data, 0, c_bh->b_size);
 	set_commit_trans_id(commit, journal->j_trans_id);
@@ -4061,12 +4060,12 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	 **  for each real block, add it to the journal list hash,
 	 ** copy into real block index array in the commit or desc block
 	 */
-	trans_half = journal_trans_half(p_s_sb->s_blocksize);
+	trans_half = journal_trans_half(sb->s_blocksize);
 	for (i = 0, cn = journal->j_first; cn; cn = cn->next, i++) {
 		if (buffer_journaled(cn->bh)) {
-			jl_cn = get_cnode(p_s_sb);
+			jl_cn = get_cnode(sb);
 			if (!jl_cn) {
-				reiserfs_panic(p_s_sb, "journal-1676",
+				reiserfs_panic(sb, "journal-1676",
 					       "get_cnode returned NULL");
 			}
 			if (i == 0) {
@@ -4082,15 +4081,15 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 			   of journal or reserved area */
 
 			if (is_block_in_log_or_reserved_area
-			    (p_s_sb, cn->bh->b_blocknr)) {
-				reiserfs_panic(p_s_sb, "journal-2332",
+			    (sb, cn->bh->b_blocknr)) {
+				reiserfs_panic(sb, "journal-2332",
 					       "Trying to log block %lu, "
 					       "which is a log block",
 					       cn->bh->b_blocknr);
 			}
 			jl_cn->blocknr = cn->bh->b_blocknr;
 			jl_cn->state = 0;
-			jl_cn->sb = p_s_sb;
+			jl_cn->sb = sb;
 			jl_cn->bh = cn->bh;
 			jl_cn->jlist = jl;
 			insert_journal_hash(journal->j_list_hash_table, jl_cn);
@@ -4131,11 +4130,11 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 			char *addr;
 			struct page *page;
 			tmp_bh =
-			    journal_getblk(p_s_sb,
-					   SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) +
+			    journal_getblk(sb,
+					   SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
 					   ((cur_write_start +
 					     jindex) %
-					    SB_ONDISK_JOURNAL_SIZE(p_s_sb)));
+					    SB_ONDISK_JOURNAL_SIZE(sb)));
 			set_buffer_uptodate(tmp_bh);
 			page = cn->bh->b_page;
 			addr = kmap(page);
@@ -4149,13 +4148,13 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 			clear_buffer_journaled(cn->bh);
 		} else {
 			/* JDirty cleared sometime during transaction.  don't log this one */
-			reiserfs_warning(p_s_sb, "journal-2048",
+			reiserfs_warning(sb, "journal-2048",
 					 "BAD, buffer in journal hash, "
 					 "but not JDirty!");
 			brelse(cn->bh);
 		}
 		next = cn->next;
-		free_cnode(p_s_sb, cn);
+		free_cnode(sb, cn);
 		cn = next;
 		cond_resched();
 	}
@@ -4165,7 +4164,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	 ** so we dirty/relse c_bh in flush_commit_list, with commit_left <= 1.
 	 */
 
-	journal->j_current_jl = alloc_journal_list(p_s_sb);
+	journal->j_current_jl = alloc_journal_list(sb);
 
 	/* now it is safe to insert this transaction on the main list */
 	list_add_tail(&jl->j_list, &journal->j_journal_list);
@@ -4176,7 +4175,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	old_start = journal->j_start;
 	journal->j_start =
 	    (journal->j_start + journal->j_len +
-	     2) % SB_ONDISK_JOURNAL_SIZE(p_s_sb);
+	     2) % SB_ONDISK_JOURNAL_SIZE(sb);
 	atomic_set(&(journal->j_wcount), 0);
 	journal->j_bcount = 0;
 	journal->j_last = NULL;
@@ -4191,7 +4190,7 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	journal->j_len_alloc = 0;
 	journal->j_next_full_flush = 0;
 	journal->j_next_async_flush = 0;
-	init_journal_hash(p_s_sb);
+	init_journal_hash(sb);
 
 	// make sure reiserfs_add_jh sees the new current_jl before we
 	// write out the tails
@@ -4220,8 +4219,8 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 	 ** queue don't wait for this proc to flush journal lists and such.
 	 */
 	if (flush) {
-		flush_commit_list(p_s_sb, jl, 1);
-		flush_journal_list(p_s_sb, jl, 1);
+		flush_commit_list(sb, jl, 1);
+		flush_journal_list(sb, jl, 1);
 	} else if (!(jl->j_state & LIST_COMMIT_PENDING))
 		queue_delayed_work(commit_wq, &journal->j_work, HZ / 10);
 
@@ -4235,11 +4234,11 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 		if (journal->j_start <= temp_jl->j_start) {
 			if ((journal->j_start + journal->j_trans_max + 1) >=
 			    temp_jl->j_start) {
-				flush_used_journal_lists(p_s_sb, temp_jl);
+				flush_used_journal_lists(sb, temp_jl);
 				goto first_jl;
 			} else if ((journal->j_start +
 				    journal->j_trans_max + 1) <
-				   SB_ONDISK_JOURNAL_SIZE(p_s_sb)) {
+				   SB_ONDISK_JOURNAL_SIZE(sb)) {
 				/* if we don't cross into the next transaction and we don't
 				 * wrap, there is no way we can overlap any later transactions
 				 * break now
@@ -4248,11 +4247,11 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 			}
 		} else if ((journal->j_start +
 			    journal->j_trans_max + 1) >
-			   SB_ONDISK_JOURNAL_SIZE(p_s_sb)) {
+			   SB_ONDISK_JOURNAL_SIZE(sb)) {
 			if (((journal->j_start + journal->j_trans_max + 1) %
-			     SB_ONDISK_JOURNAL_SIZE(p_s_sb)) >=
+			     SB_ONDISK_JOURNAL_SIZE(sb)) >=
 			    temp_jl->j_start) {
-				flush_used_journal_lists(p_s_sb, temp_jl);
+				flush_used_journal_lists(sb, temp_jl);
 				goto first_jl;
 			} else {
 				/* we don't overlap anything from out start to the end of the
@@ -4263,34 +4262,34 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
 			}
 		}
 	}
-	flush_old_journal_lists(p_s_sb);
+	flush_old_journal_lists(sb);
 
 	journal->j_current_jl->j_list_bitmap =
-	    get_list_bitmap(p_s_sb, journal->j_current_jl);
+	    get_list_bitmap(sb, journal->j_current_jl);
 
 	if (!(journal->j_current_jl->j_list_bitmap)) {
-		reiserfs_panic(p_s_sb, "journal-1996",
+		reiserfs_panic(sb, "journal-1996",
 			       "could not get a list bitmap");
 	}
 
 	atomic_set(&(journal->j_jlock), 0);
-	unlock_journal(p_s_sb);
+	unlock_journal(sb);
 	/* wake up any body waiting to join. */
 	clear_bit(J_WRITERS_QUEUED, &journal->j_state);
 	wake_up(&(journal->j_join_wait));
 
 	if (!flush && wait_on_commit &&
-	    journal_list_still_alive(p_s_sb, commit_trans_id)) {
-		flush_commit_list(p_s_sb, jl, 1);
+	    journal_list_still_alive(sb, commit_trans_id)) {
+		flush_commit_list(sb, jl, 1);
 	}
       out:
-	reiserfs_check_lock_depth(p_s_sb, "journal end2");
+	reiserfs_check_lock_depth(sb, "journal end2");
 
 	memset(th, 0, sizeof(*th));
 	/* Re-set th->t_super, so we can properly keep track of how many
 	 * persistent transactions there are. We need to do this so if this
 	 * call is part of a failed restart_transaction, we can free it later */
-	th->t_super = p_s_sb;
+	th->t_super = sb;
 
 	return journal->j_errno;
 }
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index a65bfee28bb8..00fd879c4a2a 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -245,7 +245,7 @@ static const struct reiserfs_key MAX_KEY = {
 static inline const struct reiserfs_key *get_lkey(const struct treepath
 						  *p_s_chk_path,
 						  const struct super_block
-						  *p_s_sb)
+						  *sb)
 {
 	int n_position, n_path_offset = p_s_chk_path->path_length;
 	struct buffer_head *p_s_parent;
@@ -282,14 +282,14 @@ static inline const struct reiserfs_key *get_lkey(const struct treepath
 	}
 	/* Return MIN_KEY if we are in the root of the buffer tree. */
 	if (PATH_OFFSET_PBUFFER(p_s_chk_path, FIRST_PATH_ELEMENT_OFFSET)->
-	    b_blocknr == SB_ROOT_BLOCK(p_s_sb))
+	    b_blocknr == SB_ROOT_BLOCK(sb))
 		return &MIN_KEY;
 	return &MAX_KEY;
 }
 
 /* Get delimiting key of the buffer at the path and its right neighbor. */
 inline const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
-					   const struct super_block *p_s_sb)
+					   const struct super_block *sb)
 {
 	int n_position, n_path_offset = p_s_chk_path->path_length;
 	struct buffer_head *p_s_parent;
@@ -325,7 +325,7 @@ inline const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
 	}
 	/* Return MAX_KEY if we are in the root of the buffer tree. */
 	if (PATH_OFFSET_PBUFFER(p_s_chk_path, FIRST_PATH_ELEMENT_OFFSET)->
-	    b_blocknr == SB_ROOT_BLOCK(p_s_sb))
+	    b_blocknr == SB_ROOT_BLOCK(sb))
 		return &MAX_KEY;
 	return &MIN_KEY;
 }
@@ -337,7 +337,7 @@ inline const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
    this case get_lkey and get_rkey return a special key which is MIN_KEY or MAX_KEY. */
 static inline int key_in_buffer(struct treepath *p_s_chk_path,	/* Path which should be checked.  */
 				const struct cpu_key *p_s_key,	/* Key which should be checked.   */
-				struct super_block *p_s_sb	/* Super block pointer.           */
+				struct super_block *sb	/* Super block pointer.	   */
     )
 {
 
@@ -348,11 +348,11 @@ static inline int key_in_buffer(struct treepath *p_s_chk_path,	/* Path which sho
 	RFALSE(!PATH_PLAST_BUFFER(p_s_chk_path)->b_bdev,
 	       "PAP-5060: device must not be NODEV");
 
-	if (comp_keys(get_lkey(p_s_chk_path, p_s_sb), p_s_key) == 1)
+	if (comp_keys(get_lkey(p_s_chk_path, sb), p_s_key) == 1)
 		/* left delimiting key is bigger, that the key we look for */
 		return 0;
-	//  if ( comp_keys(p_s_key, get_rkey(p_s_chk_path, p_s_sb)) != -1 )
-	if (comp_keys(get_rkey(p_s_chk_path, p_s_sb), p_s_key) != 1)
+	//  if ( comp_keys(p_s_key, get_rkey(p_s_chk_path, sb)) != -1 )
+	if (comp_keys(get_rkey(p_s_chk_path, sb), p_s_key) != 1)
 		/* p_s_key must be less than right delimitiing key */
 		return 0;
 	return 1;
@@ -546,7 +546,7 @@ static void search_by_key_reada(struct super_block *s,
 /**************************************************************************
  * Algorithm   SearchByKey                                                *
  *             look for item in the Disk S+Tree by its key                *
- * Input:  p_s_sb   -  super block                                        *
+ * Input:  sb   -  super block                                            *
  *         p_s_key  - pointer to the key to search                        *
  * Output: ITEM_FOUND, ITEM_NOT_FOUND or IO_ERROR                         *
  *         p_s_search_path - path from the root to the needed leaf        *
@@ -566,7 +566,7 @@ static void search_by_key_reada(struct super_block *s,
    correctness of the top of the path but need not be checked for the
    correctness of the bottom of the path */
 /* The function is NOT SCHEDULE-SAFE! */
-int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/* Key to search. */
+int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key to search. */
 		  struct treepath *p_s_search_path,/* This structure was
 						   allocated and initialized
 						   by the calling
@@ -592,7 +592,7 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 	int n_repeat_counter = 0;
 #endif
 
-	PROC_INFO_INC(p_s_sb, search_by_key);
+	PROC_INFO_INC(sb, search_by_key);
 
 	/* As we add each node to a path we increase its count.  This means that
 	   we must be careful to release all nodes in a path before we either
@@ -605,13 +605,13 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 	/* With each iteration of this loop we search through the items in the
 	   current node, and calculate the next current node(next path element)
 	   for the next iteration of this loop.. */
-	n_block_number = SB_ROOT_BLOCK(p_s_sb);
+	n_block_number = SB_ROOT_BLOCK(sb);
 	expected_level = -1;
 	while (1) {
 
 #ifdef CONFIG_REISERFS_CHECK
 		if (!(++n_repeat_counter % 50000))
-			reiserfs_warning(p_s_sb, "PAP-5100",
+			reiserfs_warning(sb, "PAP-5100",
 					 "%s: there were %d iterations of "
 					 "while loop looking for key %K",
 					 current->comm, n_repeat_counter,
@@ -622,14 +622,14 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 		p_s_last_element =
 		    PATH_OFFSET_PELEMENT(p_s_search_path,
 					 ++p_s_search_path->path_length);
-		fs_gen = get_generation(p_s_sb);
+		fs_gen = get_generation(sb);
 
 		/* Read the next tree node, and set the last element in the path to
 		   have a pointer to it. */
 		if ((p_s_bh = p_s_last_element->pe_buffer =
-		     sb_getblk(p_s_sb, n_block_number))) {
+		     sb_getblk(sb, n_block_number))) {
 			if (!buffer_uptodate(p_s_bh) && reada_count > 1) {
-				search_by_key_reada(p_s_sb, reada_bh,
+				search_by_key_reada(sb, reada_bh,
 						    reada_blocks, reada_count);
 			}
 			ll_rw_block(READ, 1, &p_s_bh);
@@ -644,25 +644,25 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 		}
 		reada_count = 0;
 		if (expected_level == -1)
-			expected_level = SB_TREE_HEIGHT(p_s_sb);
+			expected_level = SB_TREE_HEIGHT(sb);
 		expected_level--;
 
 		/* It is possible that schedule occurred. We must check whether the key
 		   to search is still in the tree rooted from the current buffer. If
 		   not then repeat search from the root. */
-		if (fs_changed(fs_gen, p_s_sb) &&
+		if (fs_changed(fs_gen, sb) &&
 		    (!B_IS_IN_TREE(p_s_bh) ||
 		     B_LEVEL(p_s_bh) != expected_level ||
-		     !key_in_buffer(p_s_search_path, p_s_key, p_s_sb))) {
-			PROC_INFO_INC(p_s_sb, search_by_key_fs_changed);
-			PROC_INFO_INC(p_s_sb, search_by_key_restarted);
-			PROC_INFO_INC(p_s_sb,
+		     !key_in_buffer(p_s_search_path, p_s_key, sb))) {
+			PROC_INFO_INC(sb, search_by_key_fs_changed);
+			PROC_INFO_INC(sb, search_by_key_restarted);
+			PROC_INFO_INC(sb,
 				      sbk_restarted[expected_level - 1]);
 			pathrelse(p_s_search_path);
 
 			/* Get the root block number so that we can repeat the search
 			   starting from the root. */
-			n_block_number = SB_ROOT_BLOCK(p_s_sb);
+			n_block_number = SB_ROOT_BLOCK(sb);
 			expected_level = -1;
 			right_neighbor_of_leaf_node = 0;
 
@@ -674,12 +674,12 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 		   equal to the MAX_KEY. Latter case is only possible in
 		   "finish_unfinished()" processing during mount. */
 		RFALSE(comp_keys(&MAX_KEY, p_s_key) &&
-		       !key_in_buffer(p_s_search_path, p_s_key, p_s_sb),
+		       !key_in_buffer(p_s_search_path, p_s_key, sb),
 		       "PAP-5130: key is not in the buffer");
 #ifdef CONFIG_REISERFS_CHECK
 		if (cur_tb) {
 			print_cur_tb("5140");
-			reiserfs_panic(p_s_sb, "PAP-5140",
+			reiserfs_panic(sb, "PAP-5140",
 				       "schedule occurred in do_balance!");
 		}
 #endif
@@ -687,7 +687,7 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 		// make sure, that the node contents look like a node of
 		// certain level
 		if (!is_tree_node(p_s_bh, expected_level)) {
-			reiserfs_error(p_s_sb, "vs-5150",
+			reiserfs_error(sb, "vs-5150",
 				       "invalid format found in block %ld. "
 				       "Fsck?", p_s_bh->b_blocknr);
 			pathrelse(p_s_search_path);
@@ -697,7 +697,7 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
 		/* ok, we have acquired next formatted node in the tree */
 		n_node_level = B_LEVEL(p_s_bh);
 
-		PROC_INFO_BH_STAT(p_s_sb, p_s_bh, n_node_level - 1);
+		PROC_INFO_BH_STAT(sb, p_s_bh, n_node_level - 1);
 
 		RFALSE(n_node_level < n_stop_level,
 		       "vs-5152: tree level (%d) is less than stop level (%d)",
@@ -776,7 +776,7 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key,	/*
    units of directory entries.  */
 
 /* The function is NOT SCHEDULE-SAFE! */
-int search_for_position_by_key(struct super_block *p_s_sb,	/* Pointer to the super block.          */
+int search_for_position_by_key(struct super_block *sb,	/* Pointer to the super block.          */
 			       const struct cpu_key *p_cpu_key,	/* Key to search (cpu variable)         */
 			       struct treepath *p_s_search_path	/* Filled up by this function.          */
     )
@@ -789,13 +789,13 @@ int search_for_position_by_key(struct super_block *p_s_sb,	/* Pointer to the sup
 
 	/* If searching for directory entry. */
 	if (is_direntry_cpu_key(p_cpu_key))
-		return search_by_entry_key(p_s_sb, p_cpu_key, p_s_search_path,
+		return search_by_entry_key(sb, p_cpu_key, p_s_search_path,
 					   &de);
 
 	/* If not searching for directory entry. */
 
 	/* If item is found. */
-	retval = search_item(p_s_sb, p_cpu_key, p_s_search_path);
+	retval = search_item(sb, p_cpu_key, p_s_search_path);
 	if (retval == IO_ERROR)
 		return retval;
 	if (retval == ITEM_FOUND) {
@@ -817,7 +817,7 @@ int search_for_position_by_key(struct super_block *p_s_sb,	/* Pointer to the sup
 	p_le_ih =
 	    B_N_PITEM_HEAD(PATH_PLAST_BUFFER(p_s_search_path),
 			   --PATH_LAST_POSITION(p_s_search_path));
-	n_blk_size = p_s_sb->s_blocksize;
+	n_blk_size = sb->s_blocksize;
 
 	if (comp_short_keys(&(p_le_ih->ih_key), p_cpu_key)) {
 		return FILE_NOT_FOUND;
@@ -957,7 +957,7 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 				      int *p_n_cut_size, unsigned long long n_new_file_length	/* MAX_KEY_OFFSET in case of delete. */
     )
 {
-	struct super_block *p_s_sb = inode->i_sb;
+	struct super_block *sb = inode->i_sb;
 	struct item_head *p_le_ih = PATH_PITEM_HEAD(p_s_path);
 	struct buffer_head *p_s_bh = PATH_PLAST_BUFFER(p_s_path);
 
@@ -986,7 +986,7 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 
 	/* Case of an indirect item. */
 	{
-	    int blk_size = p_s_sb->s_blocksize;
+	    int blk_size = sb->s_blocksize;
 	    struct item_head s_ih;
 	    int need_re_search;
 	    int delete = 0;
@@ -1023,9 +1023,9 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 		    block = get_block_num(unfm, 0);
 
 		    if (block != 0) {
-			reiserfs_prepare_for_journal(p_s_sb, p_s_bh, 1);
+			reiserfs_prepare_for_journal(sb, p_s_bh, 1);
 			put_block_num(unfm, 0, 0);
-			journal_mark_dirty (th, p_s_sb, p_s_bh);
+			journal_mark_dirty (th, sb, p_s_bh);
 			reiserfs_free_block(th, inode, block, 1);
 		    }
 
@@ -1049,9 +1049,9 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 		/* a trick.  If the buffer has been logged, this will do nothing.  If
 		** we've broken the loop without logging it, it will restore the
 		** buffer */
-		reiserfs_restore_prepared_buffer(p_s_sb, p_s_bh);
+		reiserfs_restore_prepared_buffer(sb, p_s_bh);
 	    } while (need_re_search &&
-		     search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path) == POSITION_FOUND);
+		     search_for_position_by_key(sb, p_s_item_key, p_s_path) == POSITION_FOUND);
 	    pos_in_item(p_s_path) = pos * UNFM_P_SIZE;
 
 	    if (*p_n_cut_size == 0) {
@@ -1090,7 +1090,7 @@ static int calc_deleted_bytes_number(struct tree_balance *p_s_tb, char c_mode)
 
 static void init_tb_struct(struct reiserfs_transaction_handle *th,
 			   struct tree_balance *p_s_tb,
-			   struct super_block *p_s_sb,
+			   struct super_block *sb,
 			   struct treepath *p_s_path, int n_size)
 {
 
@@ -1098,7 +1098,7 @@ static void init_tb_struct(struct reiserfs_transaction_handle *th,
 
 	memset(p_s_tb, '\0', sizeof(struct tree_balance));
 	p_s_tb->transaction_handle = th;
-	p_s_tb->tb_sb = p_s_sb;
+	p_s_tb->tb_sb = sb;
 	p_s_tb->tb_path = p_s_path;
 	PATH_OFFSET_PBUFFER(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = NULL;
 	PATH_OFFSET_POSITION(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = 0;
@@ -1147,7 +1147,7 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 			 struct inode *p_s_inode,	/* inode is here just to update i_blocks and quotas */
 			 struct buffer_head *p_s_un_bh)
 {				/* NULL or unformatted node pointer.    */
-	struct super_block *p_s_sb = p_s_inode->i_sb;
+	struct super_block *sb = p_s_inode->i_sb;
 	struct tree_balance s_del_balance;
 	struct item_head s_ih;
 	struct item_head *q_ih;
@@ -1161,7 +1161,7 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 
 	BUG_ON(!th->t_trans_id);
 
-	init_tb_struct(th, &s_del_balance, p_s_sb, p_s_path,
+	init_tb_struct(th, &s_del_balance, sb, p_s_path,
 		       0 /*size is unknown */ );
 
 	while (1) {
@@ -1185,15 +1185,15 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 		if (n_ret_value != REPEAT_SEARCH)
 			break;
 
-		PROC_INFO_INC(p_s_sb, delete_item_restarted);
+		PROC_INFO_INC(sb, delete_item_restarted);
 
 		// file system changed, repeat search
 		n_ret_value =
-		    search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path);
+		    search_for_position_by_key(sb, p_s_item_key, p_s_path);
 		if (n_ret_value == IO_ERROR)
 			break;
 		if (n_ret_value == FILE_NOT_FOUND) {
-			reiserfs_warning(p_s_sb, "vs-5340",
+			reiserfs_warning(sb, "vs-5340",
 					 "no items of the file %K found",
 					 p_s_item_key);
 			break;
@@ -1216,8 +1216,8 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 	 ** the unfm node once
 	 */
 	if (!S_ISLNK(p_s_inode->i_mode) && is_direct_le_ih(q_ih)) {
-		if ((le_ih_k_offset(q_ih) & (p_s_sb->s_blocksize - 1)) == 1) {
-			quota_cut_bytes = p_s_sb->s_blocksize + UNFM_P_SIZE;
+		if ((le_ih_k_offset(q_ih) & (sb->s_blocksize - 1)) == 1) {
+			quota_cut_bytes = sb->s_blocksize + UNFM_P_SIZE;
 		} else {
 			quota_cut_bytes = 0;
 		}
@@ -1258,7 +1258,7 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 	do_balance(&s_del_balance, NULL, NULL, M_DELETE);
 
 #ifdef REISERQUOTA_DEBUG
-	reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE,
+	reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 		       "reiserquota delete_item(): freeing %u, id=%u type=%c",
 		       quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih));
 #endif
@@ -1430,8 +1430,8 @@ static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th,
 				    const struct cpu_key *p_s_item_key,
 				    loff_t n_new_file_size, char *p_c_mode)
 {
-	struct super_block *p_s_sb = p_s_inode->i_sb;
-	int n_block_size = p_s_sb->s_blocksize;
+	struct super_block *sb = p_s_inode->i_sb;
+	int n_block_size = sb->s_blocksize;
 	int cut_bytes;
 	BUG_ON(!th->t_trans_id);
 	BUG_ON(n_new_file_size != p_s_inode->i_size);
@@ -1509,7 +1509,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 			   struct inode *p_s_inode,
 			   struct page *page, loff_t n_new_file_size)
 {
-	struct super_block *p_s_sb = p_s_inode->i_sb;
+	struct super_block *sb = p_s_inode->i_sb;
 	/* Every function which is going to call do_balance must first
 	   create a tree_balance structure.  Then it must fill up this
 	   structure by using the init_tb_struct and fix_nodes functions.
@@ -1560,7 +1560,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 			/* removing of last unformatted node will change value we
 			   have to return to truncate. Save it */
 			retval2 = n_ret_value;
-			/*retval2 = p_s_sb->s_blocksize - (n_new_file_size & (p_s_sb->s_blocksize - 1)); */
+			/*retval2 = sb->s_blocksize - (n_new_file_size & (sb->s_blocksize - 1)); */
 
 			/* So, we have performed the first part of the conversion:
 			   inserting the new direct item.  Now we are removing the
@@ -1569,16 +1569,16 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 			set_cpu_key_k_type(p_s_item_key, TYPE_INDIRECT);
 			p_s_item_key->key_length = 4;
 			n_new_file_size -=
-			    (n_new_file_size & (p_s_sb->s_blocksize - 1));
+			    (n_new_file_size & (sb->s_blocksize - 1));
 			tail_pos = n_new_file_size;
 			set_cpu_key_k_offset(p_s_item_key, n_new_file_size + 1);
 			if (search_for_position_by_key
-			    (p_s_sb, p_s_item_key,
+			    (sb, p_s_item_key,
 			     p_s_path) == POSITION_NOT_FOUND) {
 				print_block(PATH_PLAST_BUFFER(p_s_path), 3,
 					    PATH_LAST_POSITION(p_s_path) - 1,
 					    PATH_LAST_POSITION(p_s_path) + 1);
-				reiserfs_panic(p_s_sb, "PAP-5580", "item to "
+				reiserfs_panic(sb, "PAP-5580", "item to "
 					       "convert does not exist (%K)",
 					       p_s_item_key);
 			}
@@ -1595,14 +1595,14 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		if (n_ret_value != REPEAT_SEARCH)
 			break;
 
-		PROC_INFO_INC(p_s_sb, cut_from_item_restarted);
+		PROC_INFO_INC(sb, cut_from_item_restarted);
 
 		n_ret_value =
-		    search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path);
+		    search_for_position_by_key(sb, p_s_item_key, p_s_path);
 		if (n_ret_value == POSITION_FOUND)
 			continue;
 
-		reiserfs_warning(p_s_sb, "PAP-5610", "item %K not found",
+		reiserfs_warning(sb, "PAP-5610", "item %K not found",
 				 p_s_item_key);
 		unfix_nodes(&s_cut_balance);
 		return (n_ret_value == IO_ERROR) ? -EIO : -ENOENT;
@@ -1616,7 +1616,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 			indirect_to_direct_roll_back(th, p_s_inode, p_s_path);
 		}
 		if (n_ret_value == NO_DISK_SPACE)
-			reiserfs_warning(p_s_sb, "reiserfs-5092",
+			reiserfs_warning(sb, "reiserfs-5092",
 					 "NO_DISK_SPACE");
 		unfix_nodes(&s_cut_balance);
 		return -EIO;
@@ -1642,11 +1642,11 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 	p_le_ih = PATH_PITEM_HEAD(s_cut_balance.tb_path);
 	if (!S_ISLNK(p_s_inode->i_mode) && is_direct_le_ih(p_le_ih)) {
 		if (c_mode == M_DELETE &&
-		    (le_ih_k_offset(p_le_ih) & (p_s_sb->s_blocksize - 1)) ==
+		    (le_ih_k_offset(p_le_ih) & (sb->s_blocksize - 1)) ==
 		    1) {
 			// FIXME: this is to keep 3.5 happy
 			REISERFS_I(p_s_inode)->i_first_direct_byte = U32_MAX;
-			quota_cut_bytes = p_s_sb->s_blocksize + UNFM_P_SIZE;
+			quota_cut_bytes = sb->s_blocksize + UNFM_P_SIZE;
 		} else {
 			quota_cut_bytes = 0;
 		}
@@ -1659,18 +1659,18 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		   sure, that we exactly remove last unformatted node pointer
 		   of the item */
 		if (!is_indirect_le_ih(le_ih))
-			reiserfs_panic(p_s_sb, "vs-5652",
+			reiserfs_panic(sb, "vs-5652",
 				       "item must be indirect %h", le_ih);
 
 		if (c_mode == M_DELETE && ih_item_len(le_ih) != UNFM_P_SIZE)
-			reiserfs_panic(p_s_sb, "vs-5653", "completing "
+			reiserfs_panic(sb, "vs-5653", "completing "
 				       "indirect2direct conversion indirect "
 				       "item %h being deleted must be of "
 				       "4 byte long", le_ih);
 
 		if (c_mode == M_CUT
 		    && s_cut_balance.insert_size[0] != -UNFM_P_SIZE) {
-			reiserfs_panic(p_s_sb, "vs-5654", "can not complete "
+			reiserfs_panic(sb, "vs-5654", "can not complete "
 				       "indirect2direct conversion of %h "
 				       "(CUT, insert_size==%d)",
 				       le_ih, s_cut_balance.insert_size[0]);
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index 0635cfe0f0b7..27311a5f0469 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -175,9 +175,9 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 		    loff_t n_new_file_size,	/* New file size. */
 		    char *p_c_mode)
 {
-	struct super_block *p_s_sb = p_s_inode->i_sb;
+	struct super_block *sb = p_s_inode->i_sb;
 	struct item_head s_ih;
-	unsigned long n_block_size = p_s_sb->s_blocksize;
+	unsigned long n_block_size = sb->s_blocksize;
 	char *tail;
 	int tail_len, round_tail_len;
 	loff_t pos, pos1;	/* position of first byte of the tail */
@@ -185,7 +185,7 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 
 	BUG_ON(!th->t_trans_id);
 
-	REISERFS_SB(p_s_sb)->s_indirect2direct++;
+	REISERFS_SB(sb)->s_indirect2direct++;
 
 	*p_c_mode = M_SKIP_BALANCING;
 
@@ -200,7 +200,7 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 
 	pos =
 	    le_ih_k_offset(&s_ih) - 1 + (ih_item_len(&s_ih) / UNFM_P_SIZE -
-					 1) * p_s_sb->s_blocksize;
+					 1) * sb->s_blocksize;
 	pos1 = pos;
 
 	// we are protected by i_mutex. The tail can not disapper, not
@@ -211,18 +211,18 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 
 	if (path_changed(&s_ih, p_s_path)) {
 		/* re-search indirect item */
-		if (search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path)
+		if (search_for_position_by_key(sb, p_s_item_key, p_s_path)
 		    == POSITION_NOT_FOUND)
-			reiserfs_panic(p_s_sb, "PAP-5520",
+			reiserfs_panic(sb, "PAP-5520",
 				       "item to be converted %K does not exist",
 				       p_s_item_key);
 		copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
 #ifdef CONFIG_REISERFS_CHECK
 		pos = le_ih_k_offset(&s_ih) - 1 +
 		    (ih_item_len(&s_ih) / UNFM_P_SIZE -
-		     1) * p_s_sb->s_blocksize;
+		     1) * sb->s_blocksize;
 		if (pos != pos1)
-			reiserfs_panic(p_s_sb, "vs-5530", "tail position "
+			reiserfs_panic(sb, "vs-5530", "tail position "
 				       "changed while we were reading it");
 #endif
 	}
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index eb4e912e6bd3..9bd7800d989c 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1769,12 +1769,12 @@ int journal_end_sync(struct reiserfs_transaction_handle *, struct super_block *,
 int journal_mark_freed(struct reiserfs_transaction_handle *,
 		       struct super_block *, b_blocknr_t blocknr);
 int journal_transaction_should_end(struct reiserfs_transaction_handle *, int);
-int reiserfs_in_journal(struct super_block *p_s_sb, unsigned int bmap_nr,
-			int bit_nr, int searchall, b_blocknr_t *next);
+int reiserfs_in_journal(struct super_block *sb, unsigned int bmap_nr,
+			 int bit_nr, int searchall, b_blocknr_t *next);
 int journal_begin(struct reiserfs_transaction_handle *,
-		  struct super_block *p_s_sb, unsigned long);
+		  struct super_block *sb, unsigned long);
 int journal_join_abort(struct reiserfs_transaction_handle *,
-		       struct super_block *p_s_sb, unsigned long);
+		       struct super_block *sb, unsigned long);
 void reiserfs_abort_journal(struct super_block *sb, int errno);
 void reiserfs_abort(struct super_block *sb, int errno, const char *fmt, ...);
 int reiserfs_allocate_list_bitmaps(struct super_block *s,
@@ -1830,11 +1830,11 @@ static inline void copy_key(struct reiserfs_key *to,
 
 int comp_items(const struct item_head *stored_ih, const struct treepath *p_s_path);
 const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
-				    const struct super_block *p_s_sb);
+				    const struct super_block *sb);
 int search_by_key(struct super_block *, const struct cpu_key *,
 		  struct treepath *, int);
 #define search_item(s,key,path) search_by_key (s, key, path, DISK_LEAF_NODE_LEVEL)
-int search_for_position_by_key(struct super_block *p_s_sb,
+int search_for_position_by_key(struct super_block *sb,
 			       const struct cpu_key *p_s_cpu_key,
 			       struct treepath *p_s_search_path);
 extern void decrement_bcount(struct buffer_head *p_s_bh);
@@ -1978,7 +1978,7 @@ int reiserfs_global_version_in_proc(char *buffer, char **start, off_t offset,
 #define PROC_INFO_MAX( sb, field, value ) VOID_V
 #define PROC_INFO_INC( sb, field ) VOID_V
 #define PROC_INFO_ADD( sb, field, val ) VOID_V
-#define PROC_INFO_BH_STAT( p_s_sb, p_s_bh, n_node_level ) VOID_V
+#define PROC_INFO_BH_STAT(sb, p_s_bh, n_node_level) VOID_V
 #endif
 
 /* dir.c */
-- 
cgit v1.2.3


From ad31a4fc0386e8590c51ca4b8f1ae1d8b8b2ac5e Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:46 -0400
Subject: reiserfs: rename p_s_bh to bh

This patch is a simple s/p_s_bh/bh/g to the reiserfs code.  This is the
second in a series of patches to rip out some of the awful variable
naming in reiserfs.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/fix_node.c      | 94 +++++++++++++++++++++------------------------
 fs/reiserfs/stree.c         | 63 +++++++++++++++---------------
 include/linux/reiserfs_fs.h | 35 +++++++++--------
 3 files changed, 93 insertions(+), 99 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 799c0ce24291..ad42c45af44f 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -1887,7 +1887,7 @@ static int check_balance(int mode,
 /* Check whether parent at the path is the really parent of the current node.*/
 static int get_direct_parent(struct tree_balance *p_s_tb, int n_h)
 {
-	struct buffer_head *p_s_bh;
+	struct buffer_head *bh;
 	struct treepath *p_s_path = p_s_tb->tb_path;
 	int n_position,
 	    n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h);
@@ -1909,21 +1909,21 @@ static int get_direct_parent(struct tree_balance *p_s_tb, int n_h)
 	}
 
 	if (!B_IS_IN_TREE
-	    (p_s_bh = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1)))
+	    (bh = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1)))
 		return REPEAT_SEARCH;	/* Parent in the path is not in the tree. */
 
 	if ((n_position =
 	     PATH_OFFSET_POSITION(p_s_path,
-				  n_path_offset - 1)) > B_NR_ITEMS(p_s_bh))
+				  n_path_offset - 1)) > B_NR_ITEMS(bh))
 		return REPEAT_SEARCH;
 
-	if (B_N_CHILD_NUM(p_s_bh, n_position) !=
+	if (B_N_CHILD_NUM(bh, n_position) !=
 	    PATH_OFFSET_PBUFFER(p_s_path, n_path_offset)->b_blocknr)
 		/* Parent in the path is not parent of the current node in the tree. */
 		return REPEAT_SEARCH;
 
-	if (buffer_locked(p_s_bh)) {
-		__wait_on_buffer(p_s_bh);
+	if (buffer_locked(bh)) {
+		__wait_on_buffer(bh);
 		if (FILESYSTEM_CHANGED_TB(p_s_tb))
 			return REPEAT_SEARCH;
 	}
@@ -1943,29 +1943,29 @@ static int get_neighbors(struct tree_balance *p_s_tb, int n_h)
 	    n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h + 1);
 	unsigned long n_son_number;
 	struct super_block *sb = p_s_tb->tb_sb;
-	struct buffer_head *p_s_bh;
+	struct buffer_head *bh;
 
 	PROC_INFO_INC(sb, get_neighbors[n_h]);
 
 	if (p_s_tb->lnum[n_h]) {
 		/* We need left neighbor to balance S[n_h]. */
 		PROC_INFO_INC(sb, need_l_neighbor[n_h]);
-		p_s_bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
+		bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
 
-		RFALSE(p_s_bh == p_s_tb->FL[n_h] &&
+		RFALSE(bh == p_s_tb->FL[n_h] &&
 		       !PATH_OFFSET_POSITION(p_s_tb->tb_path, n_path_offset),
 		       "PAP-8270: invalid position in the parent");
 
 		n_child_position =
-		    (p_s_bh ==
+		    (bh ==
 		     p_s_tb->FL[n_h]) ? p_s_tb->lkey[n_h] : B_NR_ITEMS(p_s_tb->
 								       FL[n_h]);
 		n_son_number = B_N_CHILD_NUM(p_s_tb->FL[n_h], n_child_position);
-		p_s_bh = sb_bread(sb, n_son_number);
-		if (!p_s_bh)
+		bh = sb_bread(sb, n_son_number);
+		if (!bh)
 			return IO_ERROR;
 		if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
-			brelse(p_s_bh);
+			brelse(bh);
 			PROC_INFO_INC(sb, get_neighbors_restart[n_h]);
 			return REPEAT_SEARCH;
 		}
@@ -1973,48 +1973,48 @@ static int get_neighbors(struct tree_balance *p_s_tb, int n_h)
 		RFALSE(!B_IS_IN_TREE(p_s_tb->FL[n_h]) ||
 		       n_child_position > B_NR_ITEMS(p_s_tb->FL[n_h]) ||
 		       B_N_CHILD_NUM(p_s_tb->FL[n_h], n_child_position) !=
-		       p_s_bh->b_blocknr, "PAP-8275: invalid parent");
-		RFALSE(!B_IS_IN_TREE(p_s_bh), "PAP-8280: invalid child");
+		       bh->b_blocknr, "PAP-8275: invalid parent");
+		RFALSE(!B_IS_IN_TREE(bh), "PAP-8280: invalid child");
 		RFALSE(!n_h &&
-		       B_FREE_SPACE(p_s_bh) !=
-		       MAX_CHILD_SIZE(p_s_bh) -
+		       B_FREE_SPACE(bh) !=
+		       MAX_CHILD_SIZE(bh) -
 		       dc_size(B_N_CHILD(p_s_tb->FL[0], n_child_position)),
 		       "PAP-8290: invalid child size of left neighbor");
 
 		brelse(p_s_tb->L[n_h]);
-		p_s_tb->L[n_h] = p_s_bh;
+		p_s_tb->L[n_h] = bh;
 	}
 
 	if (p_s_tb->rnum[n_h]) {	/* We need right neighbor to balance S[n_path_offset]. */
 		PROC_INFO_INC(sb, need_r_neighbor[n_h]);
-		p_s_bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
+		bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
 
-		RFALSE(p_s_bh == p_s_tb->FR[n_h] &&
+		RFALSE(bh == p_s_tb->FR[n_h] &&
 		       PATH_OFFSET_POSITION(p_s_tb->tb_path,
 					    n_path_offset) >=
-		       B_NR_ITEMS(p_s_bh),
+		       B_NR_ITEMS(bh),
 		       "PAP-8295: invalid position in the parent");
 
 		n_child_position =
-		    (p_s_bh == p_s_tb->FR[n_h]) ? p_s_tb->rkey[n_h] + 1 : 0;
+		    (bh == p_s_tb->FR[n_h]) ? p_s_tb->rkey[n_h] + 1 : 0;
 		n_son_number = B_N_CHILD_NUM(p_s_tb->FR[n_h], n_child_position);
-		p_s_bh = sb_bread(sb, n_son_number);
-		if (!p_s_bh)
+		bh = sb_bread(sb, n_son_number);
+		if (!bh)
 			return IO_ERROR;
 		if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
-			brelse(p_s_bh);
+			brelse(bh);
 			PROC_INFO_INC(sb, get_neighbors_restart[n_h]);
 			return REPEAT_SEARCH;
 		}
 		brelse(p_s_tb->R[n_h]);
-		p_s_tb->R[n_h] = p_s_bh;
+		p_s_tb->R[n_h] = bh;
 
 		RFALSE(!n_h
-		       && B_FREE_SPACE(p_s_bh) !=
-		       MAX_CHILD_SIZE(p_s_bh) -
+		       && B_FREE_SPACE(bh) !=
+		       MAX_CHILD_SIZE(bh) -
 		       dc_size(B_N_CHILD(p_s_tb->FR[0], n_child_position)),
 		       "PAP-8300: invalid child size of right neighbor (%d != %d - %d)",
-		       B_FREE_SPACE(p_s_bh), MAX_CHILD_SIZE(p_s_bh),
+		       B_FREE_SPACE(bh), MAX_CHILD_SIZE(bh),
 		       dc_size(B_N_CHILD(p_s_tb->FR[0], n_child_position)));
 
 	}
@@ -2090,51 +2090,45 @@ static int get_mem_for_virtual_node(struct tree_balance *tb)
 
 #ifdef CONFIG_REISERFS_CHECK
 static void tb_buffer_sanity_check(struct super_block *sb,
-				   struct buffer_head *p_s_bh,
+				   struct buffer_head *bh,
 				   const char *descr, int level)
 {
-	if (p_s_bh) {
-		if (atomic_read(&(p_s_bh->b_count)) <= 0) {
+	if (bh) {
+		if (atomic_read(&(bh->b_count)) <= 0)
 
 			reiserfs_panic(sb, "jmacd-1", "negative or zero "
 				       "reference counter for buffer %s[%d] "
-				       "(%b)", descr, level, p_s_bh);
-		}
+				       "(%b)", descr, level, bh);
 
-		if (!buffer_uptodate(p_s_bh)) {
+		if (!buffer_uptodate(bh))
 			reiserfs_panic(sb, "jmacd-2", "buffer is not up "
 				       "to date %s[%d] (%b)",
-				       descr, level, p_s_bh);
-		}
+				       descr, level, bh);
 
-		if (!B_IS_IN_TREE(p_s_bh)) {
+		if (!B_IS_IN_TREE(bh))
 			reiserfs_panic(sb, "jmacd-3", "buffer is not "
 				       "in tree %s[%d] (%b)",
-				       descr, level, p_s_bh);
-		}
+				       descr, level, bh);
 
-		if (p_s_bh->b_bdev != sb->s_bdev) {
+		if (bh->b_bdev != sb->s_bdev)
 			reiserfs_panic(sb, "jmacd-4", "buffer has wrong "
 				       "device %s[%d] (%b)",
-				       descr, level, p_s_bh);
-		}
+				       descr, level, bh);
 
-		if (p_s_bh->b_size != sb->s_blocksize) {
+		if (bh->b_size != sb->s_blocksize)
 			reiserfs_panic(sb, "jmacd-5", "buffer has wrong "
 				       "blocksize %s[%d] (%b)",
-				       descr, level, p_s_bh);
-		}
+				       descr, level, bh);
 
-		if (p_s_bh->b_blocknr > SB_BLOCK_COUNT(sb)) {
+		if (bh->b_blocknr > SB_BLOCK_COUNT(sb))
 			reiserfs_panic(sb, "jmacd-6", "buffer block "
 				       "number too high %s[%d] (%b)",
-				       descr, level, p_s_bh);
-		}
+				       descr, level, bh);
 	}
 }
 #else
 static void tb_buffer_sanity_check(struct super_block *sb,
-				   struct buffer_head *p_s_bh,
+				   struct buffer_head *bh,
 				   const char *descr, int level)
 {;
 }
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index 00fd879c4a2a..eb6856f6d323 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -56,13 +56,13 @@
 #include <linux/quotaops.h>
 
 /* Does the buffer contain a disk block which is in the tree. */
-inline int B_IS_IN_TREE(const struct buffer_head *p_s_bh)
+inline int B_IS_IN_TREE(const struct buffer_head *bh)
 {
 
-	RFALSE(B_LEVEL(p_s_bh) > MAX_HEIGHT,
-	       "PAP-1010: block (%b) has too big level (%z)", p_s_bh, p_s_bh);
+	RFALSE(B_LEVEL(bh) > MAX_HEIGHT,
+	       "PAP-1010: block (%b) has too big level (%z)", bh, bh);
 
-	return (B_LEVEL(p_s_bh) != FREE_LEVEL);
+	return (B_LEVEL(bh) != FREE_LEVEL);
 }
 
 //
@@ -579,7 +579,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 {
 	b_blocknr_t n_block_number;
 	int expected_level;
-	struct buffer_head *p_s_bh;
+	struct buffer_head *bh;
 	struct path_element *p_s_last_element;
 	int n_node_level, n_retval;
 	int right_neighbor_of_leaf_node;
@@ -626,15 +626,14 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 
 		/* Read the next tree node, and set the last element in the path to
 		   have a pointer to it. */
-		if ((p_s_bh = p_s_last_element->pe_buffer =
+		if ((bh = p_s_last_element->pe_buffer =
 		     sb_getblk(sb, n_block_number))) {
-			if (!buffer_uptodate(p_s_bh) && reada_count > 1) {
+			if (!buffer_uptodate(bh) && reada_count > 1)
 				search_by_key_reada(sb, reada_bh,
 						    reada_blocks, reada_count);
-			}
-			ll_rw_block(READ, 1, &p_s_bh);
-			wait_on_buffer(p_s_bh);
-			if (!buffer_uptodate(p_s_bh))
+			ll_rw_block(READ, 1, &bh);
+			wait_on_buffer(bh);
+			if (!buffer_uptodate(bh))
 				goto io_error;
 		} else {
 		      io_error:
@@ -651,8 +650,8 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 		   to search is still in the tree rooted from the current buffer. If
 		   not then repeat search from the root. */
 		if (fs_changed(fs_gen, sb) &&
-		    (!B_IS_IN_TREE(p_s_bh) ||
-		     B_LEVEL(p_s_bh) != expected_level ||
+		    (!B_IS_IN_TREE(bh) ||
+		     B_LEVEL(bh) != expected_level ||
 		     !key_in_buffer(p_s_search_path, p_s_key, sb))) {
 			PROC_INFO_INC(sb, search_by_key_fs_changed);
 			PROC_INFO_INC(sb, search_by_key_restarted);
@@ -686,25 +685,25 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 
 		// make sure, that the node contents look like a node of
 		// certain level
-		if (!is_tree_node(p_s_bh, expected_level)) {
+		if (!is_tree_node(bh, expected_level)) {
 			reiserfs_error(sb, "vs-5150",
 				       "invalid format found in block %ld. "
-				       "Fsck?", p_s_bh->b_blocknr);
+				       "Fsck?", bh->b_blocknr);
 			pathrelse(p_s_search_path);
 			return IO_ERROR;
 		}
 
 		/* ok, we have acquired next formatted node in the tree */
-		n_node_level = B_LEVEL(p_s_bh);
+		n_node_level = B_LEVEL(bh);
 
-		PROC_INFO_BH_STAT(sb, p_s_bh, n_node_level - 1);
+		PROC_INFO_BH_STAT(sb, bh, n_node_level - 1);
 
 		RFALSE(n_node_level < n_stop_level,
 		       "vs-5152: tree level (%d) is less than stop level (%d)",
 		       n_node_level, n_stop_level);
 
-		n_retval = bin_search(p_s_key, B_N_PITEM_HEAD(p_s_bh, 0),
-				      B_NR_ITEMS(p_s_bh),
+		n_retval = bin_search(p_s_key, B_N_PITEM_HEAD(bh, 0),
+				      B_NR_ITEMS(bh),
 				      (n_node_level ==
 				       DISK_LEAF_NODE_LEVEL) ? IH_SIZE :
 				      KEY_SIZE,
@@ -726,13 +725,13 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 		   an internal node.  Now we calculate child block number by
 		   position in the node. */
 		n_block_number =
-		    B_N_CHILD_NUM(p_s_bh, p_s_last_element->pe_position);
+		    B_N_CHILD_NUM(bh, p_s_last_element->pe_position);
 
 		/* if we are going to read leaf nodes, try for read ahead as well */
 		if ((p_s_search_path->reada & PATH_READA) &&
 		    n_node_level == DISK_LEAF_NODE_LEVEL + 1) {
 			int pos = p_s_last_element->pe_position;
-			int limit = B_NR_ITEMS(p_s_bh);
+			int limit = B_NR_ITEMS(bh);
 			struct reiserfs_key *le_key;
 
 			if (p_s_search_path->reada & PATH_READA_BACK)
@@ -741,7 +740,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 				if (pos == limit)
 					break;
 				reada_blocks[reada_count++] =
-				    B_N_CHILD_NUM(p_s_bh, pos);
+				    B_N_CHILD_NUM(bh, pos);
 				if (p_s_search_path->reada & PATH_READA_BACK)
 					pos--;
 				else
@@ -750,7 +749,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 				/*
 				 * check to make sure we're in the same object
 				 */
-				le_key = B_N_PDELIM_KEY(p_s_bh, pos);
+				le_key = B_N_PDELIM_KEY(bh, pos);
 				if (le32_to_cpu(le_key->k_objectid) !=
 				    p_s_key->on_disk_key.k_objectid) {
 					break;
@@ -851,15 +850,15 @@ int search_for_position_by_key(struct super_block *sb,	/* Pointer to the super b
 /* Compare given item and item pointed to by the path. */
 int comp_items(const struct item_head *stored_ih, const struct treepath *p_s_path)
 {
-	struct buffer_head *p_s_bh;
+	struct buffer_head *bh = PATH_PLAST_BUFFER(p_s_path);
 	struct item_head *ih;
 
 	/* Last buffer at the path is not in the tree. */
-	if (!B_IS_IN_TREE(p_s_bh = PATH_PLAST_BUFFER(p_s_path)))
+	if (!B_IS_IN_TREE(bh))
 		return 1;
 
 	/* Last path position is invalid. */
-	if (PATH_LAST_POSITION(p_s_path) >= B_NR_ITEMS(p_s_bh))
+	if (PATH_LAST_POSITION(p_s_path) >= B_NR_ITEMS(bh))
 		return 1;
 
 	/* we need only to know, whether it is the same item */
@@ -959,7 +958,7 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 {
 	struct super_block *sb = inode->i_sb;
 	struct item_head *p_le_ih = PATH_PITEM_HEAD(p_s_path);
-	struct buffer_head *p_s_bh = PATH_PLAST_BUFFER(p_s_path);
+	struct buffer_head *bh = PATH_PLAST_BUFFER(p_s_path);
 
 	BUG_ON(!th->t_trans_id);
 
@@ -1003,7 +1002,7 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 	    do {
 		need_re_search = 0;
 		*p_n_cut_size = 0;
-		p_s_bh = PATH_PLAST_BUFFER(p_s_path);
+		bh = PATH_PLAST_BUFFER(p_s_path);
 		copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
 		pos = I_UNFM_NUM(&s_ih);
 
@@ -1019,13 +1018,13 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 			break;
 		    }
 
-		    unfm = (__le32 *)B_I_PITEM(p_s_bh, &s_ih) + pos - 1;
+		    unfm = (__le32 *)B_I_PITEM(bh, &s_ih) + pos - 1;
 		    block = get_block_num(unfm, 0);
 
 		    if (block != 0) {
-			reiserfs_prepare_for_journal(sb, p_s_bh, 1);
+			reiserfs_prepare_for_journal(sb, bh, 1);
 			put_block_num(unfm, 0, 0);
-			journal_mark_dirty (th, sb, p_s_bh);
+			journal_mark_dirty(th, sb, bh);
 			reiserfs_free_block(th, inode, block, 1);
 		    }
 
@@ -1049,7 +1048,7 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 		/* a trick.  If the buffer has been logged, this will do nothing.  If
 		** we've broken the loop without logging it, it will restore the
 		** buffer */
-		reiserfs_restore_prepared_buffer(sb, p_s_bh);
+		reiserfs_restore_prepared_buffer(sb, bh);
 	    } while (need_re_search &&
 		     search_for_position_by_key(sb, p_s_item_key, p_s_path) == POSITION_FOUND);
 	    pos_in_item(p_s_path) = pos * UNFM_P_SIZE;
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 9bd7800d989c..9cfa518c90b6 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -751,25 +751,25 @@ struct block_head {
 #define DISK_LEAF_NODE_LEVEL  1	/* Leaf node level. */
 
 /* Given the buffer head of a formatted node, resolve to the block head of that node. */
-#define B_BLK_HEAD(p_s_bh)            ((struct block_head *)((p_s_bh)->b_data))
+#define B_BLK_HEAD(bh)			((struct block_head *)((bh)->b_data))
 /* Number of items that are in buffer. */
-#define B_NR_ITEMS(p_s_bh)            (blkh_nr_item(B_BLK_HEAD(p_s_bh)))
-#define B_LEVEL(p_s_bh)               (blkh_level(B_BLK_HEAD(p_s_bh)))
-#define B_FREE_SPACE(p_s_bh)          (blkh_free_space(B_BLK_HEAD(p_s_bh)))
+#define B_NR_ITEMS(bh)			(blkh_nr_item(B_BLK_HEAD(bh)))
+#define B_LEVEL(bh)			(blkh_level(B_BLK_HEAD(bh)))
+#define B_FREE_SPACE(bh)		(blkh_free_space(B_BLK_HEAD(bh)))
 
-#define PUT_B_NR_ITEMS(p_s_bh,val)    do { set_blkh_nr_item(B_BLK_HEAD(p_s_bh),val); } while (0)
-#define PUT_B_LEVEL(p_s_bh,val)       do { set_blkh_level(B_BLK_HEAD(p_s_bh),val); } while (0)
-#define PUT_B_FREE_SPACE(p_s_bh,val)  do { set_blkh_free_space(B_BLK_HEAD(p_s_bh),val); } while (0)
+#define PUT_B_NR_ITEMS(bh, val)		do { set_blkh_nr_item(B_BLK_HEAD(bh), val); } while (0)
+#define PUT_B_LEVEL(bh, val)		do { set_blkh_level(B_BLK_HEAD(bh), val); } while (0)
+#define PUT_B_FREE_SPACE(bh, val)	do { set_blkh_free_space(B_BLK_HEAD(bh), val); } while (0)
 
 /* Get right delimiting key. -- little endian */
-#define B_PRIGHT_DELIM_KEY(p_s_bh)   (&(blk_right_delim_key(B_BLK_HEAD(p_s_bh))))
+#define B_PRIGHT_DELIM_KEY(bh)		(&(blk_right_delim_key(B_BLK_HEAD(bh))))
 
 /* Does the buffer contain a disk leaf. */
-#define B_IS_ITEMS_LEVEL(p_s_bh)     (B_LEVEL(p_s_bh) == DISK_LEAF_NODE_LEVEL)
+#define B_IS_ITEMS_LEVEL(bh)		(B_LEVEL(bh) == DISK_LEAF_NODE_LEVEL)
 
 /* Does the buffer contain a disk internal node */
-#define B_IS_KEYS_LEVEL(p_s_bh)      (B_LEVEL(p_s_bh) > DISK_LEAF_NODE_LEVEL \
-                                            && B_LEVEL(p_s_bh) <= MAX_HEIGHT)
+#define B_IS_KEYS_LEVEL(bh)      (B_LEVEL(bh) > DISK_LEAF_NODE_LEVEL \
+					    && B_LEVEL(bh) <= MAX_HEIGHT)
 
 /***************************************************************************/
 /*                             STAT DATA                                   */
@@ -1119,12 +1119,13 @@ struct disk_child {
 #define put_dc_size(dc_p, val)   do { (dc_p)->dc_size = cpu_to_le16(val); } while(0)
 
 /* Get disk child by buffer header and position in the tree node. */
-#define B_N_CHILD(p_s_bh,n_pos)  ((struct disk_child *)\
-((p_s_bh)->b_data+BLKH_SIZE+B_NR_ITEMS(p_s_bh)*KEY_SIZE+DC_SIZE*(n_pos)))
+#define B_N_CHILD(bh, n_pos)  ((struct disk_child *)\
+((bh)->b_data + BLKH_SIZE + B_NR_ITEMS(bh) * KEY_SIZE + DC_SIZE * (n_pos)))
 
 /* Get disk child number by buffer header and position in the tree node. */
-#define B_N_CHILD_NUM(p_s_bh,n_pos) (dc_block_number(B_N_CHILD(p_s_bh,n_pos)))
-#define PUT_B_N_CHILD_NUM(p_s_bh,n_pos, val) (put_dc_block_number(B_N_CHILD(p_s_bh,n_pos), val ))
+#define B_N_CHILD_NUM(bh, n_pos) (dc_block_number(B_N_CHILD(bh, n_pos)))
+#define PUT_B_N_CHILD_NUM(bh, n_pos, val) \
+				(put_dc_block_number(B_N_CHILD(bh, n_pos), val))
 
  /* maximal value of field child_size in structure disk_child */
  /* child size is the combined size of all items and their headers */
@@ -1837,7 +1838,7 @@ int search_by_key(struct super_block *, const struct cpu_key *,
 int search_for_position_by_key(struct super_block *sb,
 			       const struct cpu_key *p_s_cpu_key,
 			       struct treepath *p_s_search_path);
-extern void decrement_bcount(struct buffer_head *p_s_bh);
+extern void decrement_bcount(struct buffer_head *bh);
 void decrement_counters_in_path(struct treepath *p_s_search_path);
 void pathrelse(struct treepath *p_s_search_path);
 int reiserfs_check_path(struct treepath *p);
@@ -1978,7 +1979,7 @@ int reiserfs_global_version_in_proc(char *buffer, char **start, off_t offset,
 #define PROC_INFO_MAX( sb, field, value ) VOID_V
 #define PROC_INFO_INC( sb, field ) VOID_V
 #define PROC_INFO_ADD( sb, field, val ) VOID_V
-#define PROC_INFO_BH_STAT(sb, p_s_bh, n_node_level) VOID_V
+#define PROC_INFO_BH_STAT(sb, bh, n_node_level) VOID_V
 #endif
 
 /* dir.c */
-- 
cgit v1.2.3


From 995c762ea486b48c9777522071fbf132dea96807 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:47 -0400
Subject: reiserfs: rename p_s_inode to inode

This patch is a simple s/p_s_inode/inode/g to the reiserfs code.  This
is the third in a series of patches to rip out some of the awful
variable naming in reiserfs.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/file.c            |  16 +++----
 fs/reiserfs/inode.c           |  43 +++++++++---------
 fs/reiserfs/stree.c           | 103 ++++++++++++++++++++++--------------------
 fs/reiserfs/tail_conversion.c |  18 ++++----
 include/linux/reiserfs_fs.h   |   4 +-
 5 files changed, 95 insertions(+), 89 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index f0160ee03e17..a73579f66214 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -137,17 +137,17 @@ static void reiserfs_vfs_truncate_file(struct inode *inode)
 static int reiserfs_sync_file(struct file *p_s_filp,
 			      struct dentry *p_s_dentry, int datasync)
 {
-	struct inode *p_s_inode = p_s_dentry->d_inode;
+	struct inode *inode = p_s_dentry->d_inode;
 	int n_err;
 	int barrier_done;
 
-	BUG_ON(!S_ISREG(p_s_inode->i_mode));
-	n_err = sync_mapping_buffers(p_s_inode->i_mapping);
-	reiserfs_write_lock(p_s_inode->i_sb);
-	barrier_done = reiserfs_commit_for_inode(p_s_inode);
-	reiserfs_write_unlock(p_s_inode->i_sb);
-	if (barrier_done != 1 && reiserfs_barrier_flush(p_s_inode->i_sb))
-		blkdev_issue_flush(p_s_inode->i_sb->s_bdev, NULL);
+	BUG_ON(!S_ISREG(inode->i_mode));
+	n_err = sync_mapping_buffers(inode->i_mapping);
+	reiserfs_write_lock(inode->i_sb);
+	barrier_done = reiserfs_commit_for_inode(inode);
+	reiserfs_write_unlock(inode->i_sb);
+	if (barrier_done != 1 && reiserfs_barrier_flush(inode->i_sb))
+		blkdev_issue_flush(inode->i_sb->s_bdev, NULL);
 	if (barrier_done < 0)
 		return barrier_done;
 	return (n_err < 0) ? -EIO : 0;
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index d106edaef64f..b090d2dd2a8e 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1987,7 +1987,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 **
 ** on failure, nonzero is returned, page_result and bh_result are untouched.
 */
-static int grab_tail_page(struct inode *p_s_inode,
+static int grab_tail_page(struct inode *inode,
 			  struct page **page_result,
 			  struct buffer_head **bh_result)
 {
@@ -1995,11 +1995,11 @@ static int grab_tail_page(struct inode *p_s_inode,
 	/* we want the page with the last byte in the file,
 	 ** not the page that will hold the next byte for appending
 	 */
-	unsigned long index = (p_s_inode->i_size - 1) >> PAGE_CACHE_SHIFT;
+	unsigned long index = (inode->i_size - 1) >> PAGE_CACHE_SHIFT;
 	unsigned long pos = 0;
 	unsigned long start = 0;
-	unsigned long blocksize = p_s_inode->i_sb->s_blocksize;
-	unsigned long offset = (p_s_inode->i_size) & (PAGE_CACHE_SIZE - 1);
+	unsigned long blocksize = inode->i_sb->s_blocksize;
+	unsigned long offset = (inode->i_size) & (PAGE_CACHE_SIZE - 1);
 	struct buffer_head *bh;
 	struct buffer_head *head;
 	struct page *page;
@@ -2013,7 +2013,7 @@ static int grab_tail_page(struct inode *p_s_inode,
 	if ((offset & (blocksize - 1)) == 0) {
 		return -ENOENT;
 	}
-	page = grab_cache_page(p_s_inode->i_mapping, index);
+	page = grab_cache_page(inode->i_mapping, index);
 	error = -ENOMEM;
 	if (!page) {
 		goto out;
@@ -2042,7 +2042,7 @@ static int grab_tail_page(struct inode *p_s_inode,
 		 ** I've screwed up the code to find the buffer, or the code to
 		 ** call prepare_write
 		 */
-		reiserfs_error(p_s_inode->i_sb, "clm-6000",
+		reiserfs_error(inode->i_sb, "clm-6000",
 			       "error reading block %lu", bh->b_blocknr);
 		error = -EIO;
 		goto unlock;
@@ -2065,27 +2065,28 @@ static int grab_tail_page(struct inode *p_s_inode,
 **
 ** some code taken from block_truncate_page
 */
-int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
+int reiserfs_truncate_file(struct inode *inode, int update_timestamps)
 {
 	struct reiserfs_transaction_handle th;
 	/* we want the offset for the first byte after the end of the file */
-	unsigned long offset = p_s_inode->i_size & (PAGE_CACHE_SIZE - 1);
-	unsigned blocksize = p_s_inode->i_sb->s_blocksize;
+	unsigned long offset = inode->i_size & (PAGE_CACHE_SIZE - 1);
+	unsigned blocksize = inode->i_sb->s_blocksize;
 	unsigned length;
 	struct page *page = NULL;
 	int error;
 	struct buffer_head *bh = NULL;
 	int err2;
 
-	reiserfs_write_lock(p_s_inode->i_sb);
+	reiserfs_write_lock(inode->i_sb);
 
-	if (p_s_inode->i_size > 0) {
-		if ((error = grab_tail_page(p_s_inode, &page, &bh))) {
+	if (inode->i_size > 0) {
+		error = grab_tail_page(inode, &page, &bh);
+		if (error) {
 			// -ENOENT means we truncated past the end of the file,
 			// and get_block_create_0 could not find a block to read in,
 			// which is ok.
 			if (error != -ENOENT)
-				reiserfs_error(p_s_inode->i_sb, "clm-6001",
+				reiserfs_error(inode->i_sb, "clm-6001",
 					       "grab_tail_page failed %d",
 					       error);
 			page = NULL;
@@ -2103,19 +2104,19 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
 	/* it is enough to reserve space in transaction for 2 balancings:
 	   one for "save" link adding and another for the first
 	   cut_from_item. 1 is for update_sd */
-	error = journal_begin(&th, p_s_inode->i_sb,
+	error = journal_begin(&th, inode->i_sb,
 			      JOURNAL_PER_BALANCE_CNT * 2 + 1);
 	if (error)
 		goto out;
-	reiserfs_update_inode_transaction(p_s_inode);
+	reiserfs_update_inode_transaction(inode);
 	if (update_timestamps)
 		/* we are doing real truncate: if the system crashes before the last
 		   transaction of truncating gets committed - on reboot the file
 		   either appears truncated properly or not truncated at all */
-		add_save_link(&th, p_s_inode, 1);
-	err2 = reiserfs_do_truncate(&th, p_s_inode, page, update_timestamps);
+		add_save_link(&th, inode, 1);
+	err2 = reiserfs_do_truncate(&th, inode, page, update_timestamps);
 	error =
-	    journal_end(&th, p_s_inode->i_sb, JOURNAL_PER_BALANCE_CNT * 2 + 1);
+	    journal_end(&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 2 + 1);
 	if (error)
 		goto out;
 
@@ -2126,7 +2127,7 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
 	}
 	
 	if (update_timestamps) {
-		error = remove_save_link(p_s_inode, 1 /* truncate */ );
+		error = remove_save_link(inode, 1 /* truncate */);
 		if (error)
 			goto out;
 	}
@@ -2145,14 +2146,14 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps)
 		page_cache_release(page);
 	}
 
-	reiserfs_write_unlock(p_s_inode->i_sb);
+	reiserfs_write_unlock(inode->i_sb);
 	return 0;
       out:
 	if (page) {
 		unlock_page(page);
 		page_cache_release(page);
 	}
-	reiserfs_write_unlock(p_s_inode->i_sb);
+	reiserfs_write_unlock(inode->i_sb);
 	return error;
 }
 
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index eb6856f6d323..8f220fb777d7 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -1143,10 +1143,11 @@ char head2type(struct item_head *ih)
 /* Delete object item. */
 int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath *p_s_path,	/* Path to the deleted item. */
 			 const struct cpu_key *p_s_item_key,	/* Key to search for the deleted item.  */
-			 struct inode *p_s_inode,	/* inode is here just to update i_blocks and quotas */
+			 struct inode *inode,	/* inode is here just to update
+						 * i_blocks and quotas */
 			 struct buffer_head *p_s_un_bh)
 {				/* NULL or unformatted node pointer.    */
-	struct super_block *sb = p_s_inode->i_sb;
+	struct super_block *sb = inode->i_sb;
 	struct tree_balance s_del_balance;
 	struct item_head s_ih;
 	struct item_head *q_ih;
@@ -1170,10 +1171,10 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 		n_iter++;
 		c_mode =
 #endif
-		    prepare_for_delete_or_cut(th, p_s_inode, p_s_path,
+		    prepare_for_delete_or_cut(th, inode, p_s_path,
 					      p_s_item_key, &n_removed,
 					      &n_del_size,
-					      max_reiserfs_offset(p_s_inode));
+					      max_reiserfs_offset(inode));
 
 		RFALSE(c_mode != M_DELETE, "PAP-5320: mode must be M_DELETE");
 
@@ -1214,7 +1215,7 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 	 ** split into multiple items, and we only want to decrement for
 	 ** the unfm node once
 	 */
-	if (!S_ISLNK(p_s_inode->i_mode) && is_direct_le_ih(q_ih)) {
+	if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(q_ih)) {
 		if ((le_ih_k_offset(q_ih) & (sb->s_blocksize - 1)) == 1) {
 			quota_cut_bytes = sb->s_blocksize + UNFM_P_SIZE;
 		} else {
@@ -1259,9 +1260,9 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 #ifdef REISERQUOTA_DEBUG
 	reiserfs_debug(sb, REISERFS_DEBUG_CODE,
 		       "reiserquota delete_item(): freeing %u, id=%u type=%c",
-		       quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih));
+		       quota_cut_bytes, inode->i_uid, head2type(&s_ih));
 #endif
-	DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
+	DQUOT_FREE_SPACE_NODIRTY(inode, quota_cut_bytes);
 
 	/* Return deleted body length */
 	return n_ret_value;
@@ -1423,25 +1424,25 @@ static void unmap_buffers(struct page *page, loff_t pos)
 }
 
 static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th,
-				    struct inode *p_s_inode,
+				    struct inode *inode,
 				    struct page *page,
 				    struct treepath *p_s_path,
 				    const struct cpu_key *p_s_item_key,
 				    loff_t n_new_file_size, char *p_c_mode)
 {
-	struct super_block *sb = p_s_inode->i_sb;
+	struct super_block *sb = inode->i_sb;
 	int n_block_size = sb->s_blocksize;
 	int cut_bytes;
 	BUG_ON(!th->t_trans_id);
-	BUG_ON(n_new_file_size != p_s_inode->i_size);
+	BUG_ON(n_new_file_size != inode->i_size);
 
 	/* the page being sent in could be NULL if there was an i/o error
 	 ** reading in the last block.  The user will hit problems trying to
 	 ** read the file, but for now we just skip the indirect2direct
 	 */
-	if (atomic_read(&p_s_inode->i_count) > 1 ||
-	    !tail_has_to_be_packed(p_s_inode) ||
-	    !page || (REISERFS_I(p_s_inode)->i_flags & i_nopack_mask)) {
+	if (atomic_read(&inode->i_count) > 1 ||
+	    !tail_has_to_be_packed(inode) ||
+	    !page || (REISERFS_I(inode)->i_flags & i_nopack_mask)) {
 		/* leave tail in an unformatted node */
 		*p_c_mode = M_SKIP_BALANCING;
 		cut_bytes =
@@ -1450,8 +1451,9 @@ static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th,
 		return cut_bytes;
 	}
 	/* Permorm the conversion to a direct_item. */
-	/*return indirect_to_direct (p_s_inode, p_s_path, p_s_item_key, n_new_file_size, p_c_mode); */
-	return indirect2direct(th, p_s_inode, page, p_s_path, p_s_item_key,
+	/* return indirect_to_direct(inode, p_s_path, p_s_item_key,
+				  n_new_file_size, p_c_mode); */
+	return indirect2direct(th, inode, page, p_s_path, p_s_item_key,
 			       n_new_file_size, p_c_mode);
 }
 
@@ -1505,10 +1507,10 @@ static void indirect_to_direct_roll_back(struct reiserfs_transaction_handle *th,
 int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 			   struct treepath *p_s_path,
 			   struct cpu_key *p_s_item_key,
-			   struct inode *p_s_inode,
+			   struct inode *inode,
 			   struct page *page, loff_t n_new_file_size)
 {
-	struct super_block *sb = p_s_inode->i_sb;
+	struct super_block *sb = inode->i_sb;
 	/* Every function which is going to call do_balance must first
 	   create a tree_balance structure.  Then it must fill up this
 	   structure by using the init_tb_struct and fix_nodes functions.
@@ -1525,7 +1527,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 
 	BUG_ON(!th->t_trans_id);
 
-	init_tb_struct(th, &s_cut_balance, p_s_inode->i_sb, p_s_path,
+	init_tb_struct(th, &s_cut_balance, inode->i_sb, p_s_path,
 		       n_cut_size);
 
 	/* Repeat this loop until we either cut the item without needing
@@ -1537,7 +1539,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		   pointers. */
 
 		c_mode =
-		    prepare_for_delete_or_cut(th, p_s_inode, p_s_path,
+		    prepare_for_delete_or_cut(th, inode, p_s_path,
 					      p_s_item_key, &n_removed,
 					      &n_cut_size, n_new_file_size);
 		if (c_mode == M_CONVERT) {
@@ -1547,7 +1549,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 			       "PAP-5570: can not convert twice");
 
 			n_ret_value =
-			    maybe_indirect_to_direct(th, p_s_inode, page,
+			    maybe_indirect_to_direct(th, inode, page,
 						     p_s_path, p_s_item_key,
 						     n_new_file_size, &c_mode);
 			if (c_mode == M_SKIP_BALANCING)
@@ -1612,7 +1614,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		if (n_is_inode_locked) {
 			// FIXME: this seems to be not needed: we are always able
 			// to cut item
-			indirect_to_direct_roll_back(th, p_s_inode, p_s_path);
+			indirect_to_direct_roll_back(th, inode, p_s_path);
 		}
 		if (n_ret_value == NO_DISK_SPACE)
 			reiserfs_warning(sb, "reiserfs-5092",
@@ -1639,12 +1641,12 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 	 ** item.
 	 */
 	p_le_ih = PATH_PITEM_HEAD(s_cut_balance.tb_path);
-	if (!S_ISLNK(p_s_inode->i_mode) && is_direct_le_ih(p_le_ih)) {
+	if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(p_le_ih)) {
 		if (c_mode == M_DELETE &&
 		    (le_ih_k_offset(p_le_ih) & (sb->s_blocksize - 1)) ==
 		    1) {
 			// FIXME: this is to keep 3.5 happy
-			REISERFS_I(p_s_inode)->i_first_direct_byte = U32_MAX;
+			REISERFS_I(inode)->i_first_direct_byte = U32_MAX;
 			quota_cut_bytes = sb->s_blocksize + UNFM_P_SIZE;
 		} else {
 			quota_cut_bytes = 0;
@@ -1687,14 +1689,14 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		 ** unmap and invalidate it
 		 */
 		unmap_buffers(page, tail_pos);
-		REISERFS_I(p_s_inode)->i_flags &= ~i_pack_on_close_mask;
+		REISERFS_I(inode)->i_flags &= ~i_pack_on_close_mask;
 	}
 #ifdef REISERQUOTA_DEBUG
-	reiserfs_debug(p_s_inode->i_sb, REISERFS_DEBUG_CODE,
+	reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
 		       "reiserquota cut_from_item(): freeing %u id=%u type=%c",
-		       quota_cut_bytes, p_s_inode->i_uid, '?');
+		       quota_cut_bytes, inode->i_uid, '?');
 #endif
-	DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
+	DQUOT_FREE_SPACE_NODIRTY(inode, quota_cut_bytes);
 	return n_ret_value;
 }
 
@@ -1715,8 +1717,8 @@ static void truncate_directory(struct reiserfs_transaction_handle *th,
 
 /* Truncate file to the new size. Note, this must be called with a transaction
    already started */
-int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p_s_inode,	/* ->i_size contains new
-												   size */
+int reiserfs_do_truncate(struct reiserfs_transaction_handle *th,
+			  struct inode *inode,	/* ->i_size contains new size */
 			 struct page *page,	/* up to date for last block */
 			 int update_timestamps	/* when it is called by
 						   file_release to convert
@@ -1735,35 +1737,35 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
 
 	BUG_ON(!th->t_trans_id);
 	if (!
-	    (S_ISREG(p_s_inode->i_mode) || S_ISDIR(p_s_inode->i_mode)
-	     || S_ISLNK(p_s_inode->i_mode)))
+	    (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
+	     || S_ISLNK(inode->i_mode)))
 		return 0;
 
-	if (S_ISDIR(p_s_inode->i_mode)) {
+	if (S_ISDIR(inode->i_mode)) {
 		// deletion of directory - no need to update timestamps
-		truncate_directory(th, p_s_inode);
+		truncate_directory(th, inode);
 		return 0;
 	}
 
 	/* Get new file size. */
-	n_new_file_size = p_s_inode->i_size;
+	n_new_file_size = inode->i_size;
 
 	// FIXME: note, that key type is unimportant here
-	make_cpu_key(&s_item_key, p_s_inode, max_reiserfs_offset(p_s_inode),
+	make_cpu_key(&s_item_key, inode, max_reiserfs_offset(inode),
 		     TYPE_DIRECT, 3);
 
 	retval =
-	    search_for_position_by_key(p_s_inode->i_sb, &s_item_key,
+	    search_for_position_by_key(inode->i_sb, &s_item_key,
 				       &s_search_path);
 	if (retval == IO_ERROR) {
-		reiserfs_error(p_s_inode->i_sb, "vs-5657",
+		reiserfs_error(inode->i_sb, "vs-5657",
 			       "i/o failure occurred trying to truncate %K",
 			       &s_item_key);
 		err = -EIO;
 		goto out;
 	}
 	if (retval == POSITION_FOUND || retval == FILE_NOT_FOUND) {
-		reiserfs_error(p_s_inode->i_sb, "PAP-5660",
+		reiserfs_error(inode->i_sb, "PAP-5660",
 			       "wrong result %d of search for %K", retval,
 			       &s_item_key);
 
@@ -1780,7 +1782,7 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
 	else {
 		loff_t offset = le_ih_k_offset(p_le_ih);
 		int bytes =
-		    op_bytes_number(p_le_ih, p_s_inode->i_sb->s_blocksize);
+		    op_bytes_number(p_le_ih, inode->i_sb->s_blocksize);
 
 		/* this may mismatch with real file size: if last direct item
 		   had no padding zeros and last unformatted node had no free
@@ -1805,9 +1807,9 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
 		/* Cut or delete file item. */
 		n_deleted =
 		    reiserfs_cut_from_item(th, &s_search_path, &s_item_key,
-					   p_s_inode, page, n_new_file_size);
+					   inode, page, n_new_file_size);
 		if (n_deleted < 0) {
-			reiserfs_warning(p_s_inode->i_sb, "vs-5665",
+			reiserfs_warning(inode->i_sb, "vs-5665",
 					 "reiserfs_cut_from_item failed");
 			reiserfs_check_path(&s_search_path);
 			return 0;
@@ -1837,22 +1839,22 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
 			pathrelse(&s_search_path);
 
 			if (update_timestamps) {
-				p_s_inode->i_mtime = p_s_inode->i_ctime =
-				    CURRENT_TIME_SEC;
+				inode->i_mtime = CURRENT_TIME_SEC;
+				inode->i_ctime = CURRENT_TIME_SEC;
 			}
-			reiserfs_update_sd(th, p_s_inode);
+			reiserfs_update_sd(th, inode);
 
-			err = journal_end(th, p_s_inode->i_sb, orig_len_alloc);
+			err = journal_end(th, inode->i_sb, orig_len_alloc);
 			if (err)
 				goto out;
-			err = journal_begin(th, p_s_inode->i_sb,
+			err = journal_begin(th, inode->i_sb,
 					    JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD + JOURNAL_PER_BALANCE_CNT * 4) ;
 			if (err)
 				goto out;
-			reiserfs_update_inode_transaction(p_s_inode);
+			reiserfs_update_inode_transaction(inode);
 		}
 	} while (n_file_size > ROUND_UP(n_new_file_size) &&
-		 search_for_position_by_key(p_s_inode->i_sb, &s_item_key,
+		 search_for_position_by_key(inode->i_sb, &s_item_key,
 					    &s_search_path) == POSITION_FOUND);
 
 	RFALSE(n_file_size > ROUND_UP(n_new_file_size),
@@ -1862,9 +1864,10 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
       update_and_out:
 	if (update_timestamps) {
 		// this is truncate, not file closing
-		p_s_inode->i_mtime = p_s_inode->i_ctime = CURRENT_TIME_SEC;
+		inode->i_mtime = CURRENT_TIME_SEC;
+		inode->i_ctime = CURRENT_TIME_SEC;
 	}
-	reiserfs_update_sd(th, p_s_inode);
+	reiserfs_update_sd(th, inode);
 
       out:
 	pathrelse(&s_search_path);
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index 27311a5f0469..5c5ee0d0d6a8 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -170,12 +170,14 @@ void reiserfs_unmap_buffer(struct buffer_head *bh)
    what we expect from it (number of cut bytes). But when tail remains
    in the unformatted node, we set mode to SKIP_BALANCING and unlock
    inode */
-int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_inode, struct page *page, struct treepath *p_s_path,	/* path to the indirect item. */
+int indirect2direct(struct reiserfs_transaction_handle *th,
+		    struct inode *inode, struct page *page,
+		    struct treepath *p_s_path,	/* path to the indirect item. */
 		    const struct cpu_key *p_s_item_key,	/* Key to look for unformatted node pointer to be cut. */
 		    loff_t n_new_file_size,	/* New file size. */
 		    char *p_c_mode)
 {
-	struct super_block *sb = p_s_inode->i_sb;
+	struct super_block *sb = inode->i_sb;
 	struct item_head s_ih;
 	unsigned long n_block_size = sb->s_blocksize;
 	char *tail;
@@ -193,7 +195,7 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 	copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
 
 	tail_len = (n_new_file_size & (n_block_size - 1));
-	if (get_inode_sd_version(p_s_inode) == STAT_DATA_V2)
+	if (get_inode_sd_version(inode) == STAT_DATA_V2)
 		round_tail_len = ROUND_UP(tail_len);
 	else
 		round_tail_len = tail_len;
@@ -228,7 +230,7 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 	}
 
 	/* Set direct item header to insert. */
-	make_le_item_head(&s_ih, NULL, get_inode_item_key_version(p_s_inode),
+	make_le_item_head(&s_ih, NULL, get_inode_item_key_version(inode),
 			  pos1 + 1, TYPE_DIRECT, round_tail_len,
 			  0xffff /*ih_free_space */ );
 
@@ -244,7 +246,7 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 	set_cpu_key_k_type(&key, TYPE_DIRECT);
 	key.key_length = 4;
 	/* Insert tail as new direct item in the tree */
-	if (reiserfs_insert_item(th, p_s_path, &key, &s_ih, p_s_inode,
+	if (reiserfs_insert_item(th, p_s_path, &key, &s_ih, inode,
 				 tail ? tail : NULL) < 0) {
 		/* No disk memory. So we can not convert last unformatted node
 		   to the direct item.  In this case we used to adjust
@@ -258,7 +260,7 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 	kunmap(page);
 
 	/* make sure to get the i_blocks changes from reiserfs_insert_item */
-	reiserfs_update_sd(th, p_s_inode);
+	reiserfs_update_sd(th, inode);
 
 	// note: we have now the same as in above direct2indirect
 	// conversion: there are two keys which have matching first three
@@ -269,8 +271,8 @@ int indirect2direct(struct reiserfs_transaction_handle *th, struct inode *p_s_in
 	*p_c_mode = M_CUT;
 
 	/* we store position of first direct item in the in-core inode */
-	//mark_file_with_tail (p_s_inode, pos1 + 1);
-	REISERFS_I(p_s_inode)->i_first_direct_byte = pos1 + 1;
+	/* mark_file_with_tail (inode, pos1 + 1); */
+	REISERFS_I(inode)->i_first_direct_byte = pos1 + 1;
 
 	return n_block_size - round_tail_len;
 }
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 9cfa518c90b6..3192dc793226 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1870,9 +1870,9 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th,
 void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
 				struct inode *inode, struct reiserfs_key *key);
 int reiserfs_delete_object(struct reiserfs_transaction_handle *th,
-			   struct inode *p_s_inode);
+			   struct inode *inode);
 int reiserfs_do_truncate(struct reiserfs_transaction_handle *th,
-			 struct inode *p_s_inode, struct page *,
+			 struct inode *inode, struct page *,
 			 int update_timestamps);
 
 #define i_block_size(inode) ((inode)->i_sb->s_blocksize)
-- 
cgit v1.2.3


From a063ae17925cafabe55ebe1957ca0e8c480bd132 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:48 -0400
Subject: reiserfs: rename p_s_tb to tb

This patch is a simple s/p_s_tb/tb/g to the reiserfs code.  This is the
fourth in a series of patches to rip out some of the awful variable
naming in reiserfs.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/fix_node.c      | 482 ++++++++++++++++++++++----------------------
 fs/reiserfs/stree.c         |  21 +-
 include/linux/reiserfs_fs.h |   2 +-
 3 files changed, 254 insertions(+), 251 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index ad42c45af44f..5236a8829e31 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -749,26 +749,26 @@ else \
 		  -1, -1);\
 }
 
-static void free_buffers_in_tb(struct tree_balance *p_s_tb)
+static void free_buffers_in_tb(struct tree_balance *tb)
 {
 	int n_counter;
 
-	pathrelse(p_s_tb->tb_path);
+	pathrelse(tb->tb_path);
 
 	for (n_counter = 0; n_counter < MAX_HEIGHT; n_counter++) {
-		brelse(p_s_tb->L[n_counter]);
-		brelse(p_s_tb->R[n_counter]);
-		brelse(p_s_tb->FL[n_counter]);
-		brelse(p_s_tb->FR[n_counter]);
-		brelse(p_s_tb->CFL[n_counter]);
-		brelse(p_s_tb->CFR[n_counter]);
-
-		p_s_tb->L[n_counter] = NULL;
-		p_s_tb->R[n_counter] = NULL;
-		p_s_tb->FL[n_counter] = NULL;
-		p_s_tb->FR[n_counter] = NULL;
-		p_s_tb->CFL[n_counter] = NULL;
-		p_s_tb->CFR[n_counter] = NULL;
+		brelse(tb->L[n_counter]);
+		brelse(tb->R[n_counter]);
+		brelse(tb->FL[n_counter]);
+		brelse(tb->FR[n_counter]);
+		brelse(tb->CFL[n_counter]);
+		brelse(tb->CFR[n_counter]);
+
+		tb->L[n_counter] = NULL;
+		tb->R[n_counter] = NULL;
+		tb->FL[n_counter] = NULL;
+		tb->FR[n_counter] = NULL;
+		tb->CFL[n_counter] = NULL;
+		tb->CFR[n_counter] = NULL;
 	}
 }
 
@@ -778,14 +778,14 @@ static void free_buffers_in_tb(struct tree_balance *p_s_tb)
  *	        NO_DISK_SPACE - no disk space.
  */
 /* The function is NOT SCHEDULE-SAFE! */
-static int get_empty_nodes(struct tree_balance *p_s_tb, int n_h)
+static int get_empty_nodes(struct tree_balance *tb, int n_h)
 {
 	struct buffer_head *p_s_new_bh,
-	    *p_s_Sh = PATH_H_PBUFFER(p_s_tb->tb_path, n_h);
+	    *p_s_Sh = PATH_H_PBUFFER(tb->tb_path, n_h);
 	b_blocknr_t *p_n_blocknr, a_n_blocknrs[MAX_AMOUNT_NEEDED] = { 0, };
 	int n_counter, n_number_of_freeblk, n_amount_needed,	/* number of needed empty blocks */
 	 n_retval = CARRY_ON;
-	struct super_block *sb = p_s_tb->tb_sb;
+	struct super_block *sb = tb->tb_sb;
 
 	/* number_of_freeblk is the number of empty blocks which have been
 	   acquired for use by the balancing algorithm minus the number of
@@ -803,15 +803,15 @@ static int get_empty_nodes(struct tree_balance *p_s_tb, int n_h)
 	   the analysis or 0 if not restarted, then subtract the amount needed
 	   by all of the levels of the tree below n_h. */
 	/* blknum includes S[n_h], so we subtract 1 in this calculation */
-	for (n_counter = 0, n_number_of_freeblk = p_s_tb->cur_blknum;
+	for (n_counter = 0, n_number_of_freeblk = tb->cur_blknum;
 	     n_counter < n_h; n_counter++)
 		n_number_of_freeblk -=
-		    (p_s_tb->blknum[n_counter]) ? (p_s_tb->blknum[n_counter] -
+		    (tb->blknum[n_counter]) ? (tb->blknum[n_counter] -
 						   1) : 0;
 
 	/* Allocate missing empty blocks. */
 	/* if p_s_Sh == 0  then we are getting a new root */
-	n_amount_needed = (p_s_Sh) ? (p_s_tb->blknum[n_h] - 1) : 1;
+	n_amount_needed = (p_s_Sh) ? (tb->blknum[n_h] - 1) : 1;
 	/*  Amount_needed = the amount that we need more than the amount that we have. */
 	if (n_amount_needed > n_number_of_freeblk)
 		n_amount_needed -= n_number_of_freeblk;
@@ -819,7 +819,7 @@ static int get_empty_nodes(struct tree_balance *p_s_tb, int n_h)
 		return CARRY_ON;
 
 	/* No need to check quota - is not allocated for blocks used for formatted nodes */
-	if (reiserfs_new_form_blocknrs(p_s_tb, a_n_blocknrs,
+	if (reiserfs_new_form_blocknrs(tb, a_n_blocknrs,
 				       n_amount_needed) == NO_DISK_SPACE)
 		return NO_DISK_SPACE;
 
@@ -838,14 +838,14 @@ static int get_empty_nodes(struct tree_balance *p_s_tb, int n_h)
 		       p_s_new_bh);
 
 		/* Put empty buffers into the array. */
-		RFALSE(p_s_tb->FEB[p_s_tb->cur_blknum],
+		RFALSE(tb->FEB[tb->cur_blknum],
 		       "PAP-8141: busy slot for new buffer");
 
 		set_buffer_journal_new(p_s_new_bh);
-		p_s_tb->FEB[p_s_tb->cur_blknum++] = p_s_new_bh;
+		tb->FEB[tb->cur_blknum++] = p_s_new_bh;
 	}
 
-	if (n_retval == CARRY_ON && FILESYSTEM_CHANGED_TB(p_s_tb))
+	if (n_retval == CARRY_ON && FILESYSTEM_CHANGED_TB(tb))
 		n_retval = REPEAT_SEARCH;
 
 	return n_retval;
@@ -896,33 +896,34 @@ static int get_rfree(struct tree_balance *tb, int h)
 }
 
 /* Check whether left neighbor is in memory. */
-static int is_left_neighbor_in_cache(struct tree_balance *p_s_tb, int n_h)
+static int is_left_neighbor_in_cache(struct tree_balance *tb, int n_h)
 {
 	struct buffer_head *p_s_father, *left;
-	struct super_block *sb = p_s_tb->tb_sb;
+	struct super_block *sb = tb->tb_sb;
 	b_blocknr_t n_left_neighbor_blocknr;
 	int n_left_neighbor_position;
 
-	if (!p_s_tb->FL[n_h])	/* Father of the left neighbor does not exist. */
+	/* Father of the left neighbor does not exist. */
+	if (!tb->FL[n_h])
 		return 0;
 
 	/* Calculate father of the node to be balanced. */
-	p_s_father = PATH_H_PBUFFER(p_s_tb->tb_path, n_h + 1);
+	p_s_father = PATH_H_PBUFFER(tb->tb_path, n_h + 1);
 
 	RFALSE(!p_s_father ||
 	       !B_IS_IN_TREE(p_s_father) ||
-	       !B_IS_IN_TREE(p_s_tb->FL[n_h]) ||
+	       !B_IS_IN_TREE(tb->FL[n_h]) ||
 	       !buffer_uptodate(p_s_father) ||
-	       !buffer_uptodate(p_s_tb->FL[n_h]),
+	       !buffer_uptodate(tb->FL[n_h]),
 	       "vs-8165: F[h] (%b) or FL[h] (%b) is invalid",
-	       p_s_father, p_s_tb->FL[n_h]);
+	       p_s_father, tb->FL[n_h]);
 
 	/* Get position of the pointer to the left neighbor into the left father. */
-	n_left_neighbor_position = (p_s_father == p_s_tb->FL[n_h]) ?
-	    p_s_tb->lkey[n_h] : B_NR_ITEMS(p_s_tb->FL[n_h]);
+	n_left_neighbor_position = (p_s_father == tb->FL[n_h]) ?
+	    tb->lkey[n_h] : B_NR_ITEMS(tb->FL[n_h]);
 	/* Get left neighbor block number. */
 	n_left_neighbor_blocknr =
-	    B_N_CHILD_NUM(p_s_tb->FL[n_h], n_left_neighbor_position);
+	    B_N_CHILD_NUM(tb->FL[n_h], n_left_neighbor_position);
 	/* Look for the left neighbor in the cache. */
 	if ((left = sb_find_get_block(sb, n_left_neighbor_blocknr))) {
 
@@ -953,14 +954,14 @@ static void decrement_key(struct cpu_key *p_s_key)
  		SCHEDULE_OCCURRED - schedule occurred while the function worked;
  *	        CARRY_ON         - schedule didn't occur while the function worked;
  */
-static int get_far_parent(struct tree_balance *p_s_tb,
+static int get_far_parent(struct tree_balance *tb,
 			  int n_h,
 			  struct buffer_head **pp_s_father,
 			  struct buffer_head **pp_s_com_father, char c_lr_par)
 {
 	struct buffer_head *p_s_parent;
 	INITIALIZE_PATH(s_path_to_neighbor_father);
-	struct treepath *p_s_path = p_s_tb->tb_path;
+	struct treepath *p_s_path = tb->tb_path;
 	struct cpu_key s_lr_father_key;
 	int n_counter,
 	    n_position = INT_MAX,
@@ -1005,9 +1006,9 @@ static int get_far_parent(struct tree_balance *p_s_tb,
 	if (n_counter == FIRST_PATH_ELEMENT_OFFSET) {
 		/* Check whether first buffer in the path is the root of the tree. */
 		if (PATH_OFFSET_PBUFFER
-		    (p_s_tb->tb_path,
+		    (tb->tb_path,
 		     FIRST_PATH_ELEMENT_OFFSET)->b_blocknr ==
-		    SB_ROOT_BLOCK(p_s_tb->tb_sb)) {
+		    SB_ROOT_BLOCK(tb->tb_sb)) {
 			*pp_s_father = *pp_s_com_father = NULL;
 			return CARRY_ON;
 		}
@@ -1022,7 +1023,7 @@ static int get_far_parent(struct tree_balance *p_s_tb,
 
 	if (buffer_locked(*pp_s_com_father)) {
 		__wait_on_buffer(*pp_s_com_father);
-		if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
+		if (FILESYSTEM_CHANGED_TB(tb)) {
 			brelse(*pp_s_com_father);
 			return REPEAT_SEARCH;
 		}
@@ -1035,9 +1036,9 @@ static int get_far_parent(struct tree_balance *p_s_tb,
 	le_key2cpu_key(&s_lr_father_key,
 		       B_N_PDELIM_KEY(*pp_s_com_father,
 				      (c_lr_par ==
-				       LEFT_PARENTS) ? (p_s_tb->lkey[n_h - 1] =
+				       LEFT_PARENTS) ? (tb->lkey[n_h - 1] =
 							n_position -
-							1) : (p_s_tb->rkey[n_h -
+							1) : (tb->rkey[n_h -
 									   1] =
 							      n_position)));
 
@@ -1045,12 +1046,12 @@ static int get_far_parent(struct tree_balance *p_s_tb,
 		decrement_key(&s_lr_father_key);
 
 	if (search_by_key
-	    (p_s_tb->tb_sb, &s_lr_father_key, &s_path_to_neighbor_father,
+	    (tb->tb_sb, &s_lr_father_key, &s_path_to_neighbor_father,
 	     n_h + 1) == IO_ERROR)
 		// path is released
 		return IO_ERROR;
 
-	if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
+	if (FILESYSTEM_CHANGED_TB(tb)) {
 		pathrelse(&s_path_to_neighbor_father);
 		brelse(*pp_s_com_father);
 		return REPEAT_SEARCH;
@@ -1075,24 +1076,26 @@ static int get_far_parent(struct tree_balance *p_s_tb,
  * Returns:	SCHEDULE_OCCURRED - schedule occurred while the function worked;
  *	        CARRY_ON - schedule didn't occur while the function worked;
  */
-static int get_parents(struct tree_balance *p_s_tb, int n_h)
+static int get_parents(struct tree_balance *tb, int n_h)
 {
-	struct treepath *p_s_path = p_s_tb->tb_path;
+	struct treepath *p_s_path = tb->tb_path;
 	int n_position,
 	    n_ret_value,
-	    n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h);
+	    n_path_offset = PATH_H_PATH_OFFSET(tb->tb_path, n_h);
 	struct buffer_head *p_s_curf, *p_s_curcf;
 
 	/* Current node is the root of the tree or will be root of the tree */
 	if (n_path_offset <= FIRST_PATH_ELEMENT_OFFSET) {
 		/* The root can not have parents.
 		   Release nodes which previously were obtained as parents of the current node neighbors. */
-		brelse(p_s_tb->FL[n_h]);
-		brelse(p_s_tb->CFL[n_h]);
-		brelse(p_s_tb->FR[n_h]);
-		brelse(p_s_tb->CFR[n_h]);
-		p_s_tb->FL[n_h] = p_s_tb->CFL[n_h] = p_s_tb->FR[n_h] =
-		    p_s_tb->CFR[n_h] = NULL;
+		brelse(tb->FL[n_h]);
+		brelse(tb->CFL[n_h]);
+		brelse(tb->FR[n_h]);
+		brelse(tb->CFR[n_h]);
+		tb->FL[n_h] = NULL;
+		tb->CFL[n_h] = NULL;
+		tb->FR[n_h] = NULL;
+		tb->CFR[n_h] = NULL;
 		return CARRY_ON;
 	}
 
@@ -1104,22 +1107,22 @@ static int get_parents(struct tree_balance *p_s_tb, int n_h)
 		    PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1);
 		get_bh(p_s_curf);
 		get_bh(p_s_curf);
-		p_s_tb->lkey[n_h] = n_position - 1;
+		tb->lkey[n_h] = n_position - 1;
 	} else {
 		/* Calculate current parent of L[n_path_offset], which is the left neighbor of the current node.
 		   Calculate current common parent of L[n_path_offset] and the current node. Note that
 		   CFL[n_path_offset] not equal FL[n_path_offset] and CFL[n_path_offset] not equal F[n_path_offset].
 		   Calculate lkey[n_path_offset]. */
-		if ((n_ret_value = get_far_parent(p_s_tb, n_h + 1, &p_s_curf,
+		if ((n_ret_value = get_far_parent(tb, n_h + 1, &p_s_curf,
 						  &p_s_curcf,
 						  LEFT_PARENTS)) != CARRY_ON)
 			return n_ret_value;
 	}
 
-	brelse(p_s_tb->FL[n_h]);
-	p_s_tb->FL[n_h] = p_s_curf;	/* New initialization of FL[n_h]. */
-	brelse(p_s_tb->CFL[n_h]);
-	p_s_tb->CFL[n_h] = p_s_curcf;	/* New initialization of CFL[n_h]. */
+	brelse(tb->FL[n_h]);
+	tb->FL[n_h] = p_s_curf;	/* New initialization of FL[n_h]. */
+	brelse(tb->CFL[n_h]);
+	tb->CFL[n_h] = p_s_curcf;	/* New initialization of CFL[n_h]. */
 
 	RFALSE((p_s_curf && !B_IS_IN_TREE(p_s_curf)) ||
 	       (p_s_curcf && !B_IS_IN_TREE(p_s_curcf)),
@@ -1133,7 +1136,7 @@ static int get_parents(struct tree_balance *p_s_tb, int n_h)
    Calculate current common parent of R[n_h] and current node. Note that CFR[n_h]
    not equal FR[n_path_offset] and CFR[n_h] not equal F[n_h]. */
 		if ((n_ret_value =
-		     get_far_parent(p_s_tb, n_h + 1, &p_s_curf, &p_s_curcf,
+		     get_far_parent(tb, n_h + 1, &p_s_curf, &p_s_curcf,
 				    RIGHT_PARENTS)) != CARRY_ON)
 			return n_ret_value;
 	} else {
@@ -1143,14 +1146,16 @@ static int get_parents(struct tree_balance *p_s_tb, int n_h)
 		    PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1);
 		get_bh(p_s_curf);
 		get_bh(p_s_curf);
-		p_s_tb->rkey[n_h] = n_position;
+		tb->rkey[n_h] = n_position;
 	}
 
-	brelse(p_s_tb->FR[n_h]);
-	p_s_tb->FR[n_h] = p_s_curf;	/* New initialization of FR[n_path_offset]. */
+	brelse(tb->FR[n_h]);
+	/* New initialization of FR[n_path_offset]. */
+	tb->FR[n_h] = p_s_curf;
 
-	brelse(p_s_tb->CFR[n_h]);
-	p_s_tb->CFR[n_h] = p_s_curcf;	/* New initialization of CFR[n_path_offset]. */
+	brelse(tb->CFR[n_h]);
+	/* New initialization of CFR[n_path_offset]. */
+	tb->CFR[n_h] = p_s_curcf;
 
 	RFALSE((p_s_curf && !B_IS_IN_TREE(p_s_curf)) ||
 	       (p_s_curcf && !B_IS_IN_TREE(p_s_curcf)),
@@ -1885,12 +1890,12 @@ static int check_balance(int mode,
 }
 
 /* Check whether parent at the path is the really parent of the current node.*/
-static int get_direct_parent(struct tree_balance *p_s_tb, int n_h)
+static int get_direct_parent(struct tree_balance *tb, int n_h)
 {
 	struct buffer_head *bh;
-	struct treepath *p_s_path = p_s_tb->tb_path;
+	struct treepath *p_s_path = tb->tb_path;
 	int n_position,
-	    n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h);
+	    n_path_offset = PATH_H_PATH_OFFSET(tb->tb_path, n_h);
 
 	/* We are in the root or in the new root. */
 	if (n_path_offset <= FIRST_PATH_ELEMENT_OFFSET) {
@@ -1899,7 +1904,7 @@ static int get_direct_parent(struct tree_balance *p_s_tb, int n_h)
 		       "PAP-8260: invalid offset in the path");
 
 		if (PATH_OFFSET_PBUFFER(p_s_path, FIRST_PATH_ELEMENT_OFFSET)->
-		    b_blocknr == SB_ROOT_BLOCK(p_s_tb->tb_sb)) {
+		    b_blocknr == SB_ROOT_BLOCK(tb->tb_sb)) {
 			/* Root is not changed. */
 			PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1) = NULL;
 			PATH_OFFSET_POSITION(p_s_path, n_path_offset - 1) = 0;
@@ -1924,7 +1929,7 @@ static int get_direct_parent(struct tree_balance *p_s_tb, int n_h)
 
 	if (buffer_locked(bh)) {
 		__wait_on_buffer(bh);
-		if (FILESYSTEM_CHANGED_TB(p_s_tb))
+		if (FILESYSTEM_CHANGED_TB(tb))
 			return REPEAT_SEARCH;
 	}
 
@@ -1937,85 +1942,86 @@ static int get_direct_parent(struct tree_balance *p_s_tb, int n_h)
  * Returns:	SCHEDULE_OCCURRED - schedule occurred while the function worked;
  *	        CARRY_ON - schedule didn't occur while the function worked;
  */
-static int get_neighbors(struct tree_balance *p_s_tb, int n_h)
+static int get_neighbors(struct tree_balance *tb, int n_h)
 {
 	int n_child_position,
-	    n_path_offset = PATH_H_PATH_OFFSET(p_s_tb->tb_path, n_h + 1);
+	    n_path_offset = PATH_H_PATH_OFFSET(tb->tb_path, n_h + 1);
 	unsigned long n_son_number;
-	struct super_block *sb = p_s_tb->tb_sb;
+	struct super_block *sb = tb->tb_sb;
 	struct buffer_head *bh;
 
 	PROC_INFO_INC(sb, get_neighbors[n_h]);
 
-	if (p_s_tb->lnum[n_h]) {
+	if (tb->lnum[n_h]) {
 		/* We need left neighbor to balance S[n_h]. */
 		PROC_INFO_INC(sb, need_l_neighbor[n_h]);
-		bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
+		bh = PATH_OFFSET_PBUFFER(tb->tb_path, n_path_offset);
 
-		RFALSE(bh == p_s_tb->FL[n_h] &&
-		       !PATH_OFFSET_POSITION(p_s_tb->tb_path, n_path_offset),
+		RFALSE(bh == tb->FL[n_h] &&
+		       !PATH_OFFSET_POSITION(tb->tb_path, n_path_offset),
 		       "PAP-8270: invalid position in the parent");
 
 		n_child_position =
 		    (bh ==
-		     p_s_tb->FL[n_h]) ? p_s_tb->lkey[n_h] : B_NR_ITEMS(p_s_tb->
+		     tb->FL[n_h]) ? tb->lkey[n_h] : B_NR_ITEMS(tb->
 								       FL[n_h]);
-		n_son_number = B_N_CHILD_NUM(p_s_tb->FL[n_h], n_child_position);
+		n_son_number = B_N_CHILD_NUM(tb->FL[n_h], n_child_position);
 		bh = sb_bread(sb, n_son_number);
 		if (!bh)
 			return IO_ERROR;
-		if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
+		if (FILESYSTEM_CHANGED_TB(tb)) {
 			brelse(bh);
 			PROC_INFO_INC(sb, get_neighbors_restart[n_h]);
 			return REPEAT_SEARCH;
 		}
 
-		RFALSE(!B_IS_IN_TREE(p_s_tb->FL[n_h]) ||
-		       n_child_position > B_NR_ITEMS(p_s_tb->FL[n_h]) ||
-		       B_N_CHILD_NUM(p_s_tb->FL[n_h], n_child_position) !=
+		RFALSE(!B_IS_IN_TREE(tb->FL[n_h]) ||
+		       n_child_position > B_NR_ITEMS(tb->FL[n_h]) ||
+		       B_N_CHILD_NUM(tb->FL[n_h], n_child_position) !=
 		       bh->b_blocknr, "PAP-8275: invalid parent");
 		RFALSE(!B_IS_IN_TREE(bh), "PAP-8280: invalid child");
 		RFALSE(!n_h &&
 		       B_FREE_SPACE(bh) !=
 		       MAX_CHILD_SIZE(bh) -
-		       dc_size(B_N_CHILD(p_s_tb->FL[0], n_child_position)),
+		       dc_size(B_N_CHILD(tb->FL[0], n_child_position)),
 		       "PAP-8290: invalid child size of left neighbor");
 
-		brelse(p_s_tb->L[n_h]);
-		p_s_tb->L[n_h] = bh;
+		brelse(tb->L[n_h]);
+		tb->L[n_h] = bh;
 	}
 
-	if (p_s_tb->rnum[n_h]) {	/* We need right neighbor to balance S[n_path_offset]. */
+	/* We need right neighbor to balance S[n_path_offset]. */
+	if (tb->rnum[n_h]) {
 		PROC_INFO_INC(sb, need_r_neighbor[n_h]);
-		bh = PATH_OFFSET_PBUFFER(p_s_tb->tb_path, n_path_offset);
+		bh = PATH_OFFSET_PBUFFER(tb->tb_path, n_path_offset);
 
-		RFALSE(bh == p_s_tb->FR[n_h] &&
-		       PATH_OFFSET_POSITION(p_s_tb->tb_path,
+		RFALSE(bh == tb->FR[n_h] &&
+		       PATH_OFFSET_POSITION(tb->tb_path,
 					    n_path_offset) >=
 		       B_NR_ITEMS(bh),
 		       "PAP-8295: invalid position in the parent");
 
 		n_child_position =
-		    (bh == p_s_tb->FR[n_h]) ? p_s_tb->rkey[n_h] + 1 : 0;
-		n_son_number = B_N_CHILD_NUM(p_s_tb->FR[n_h], n_child_position);
+		    (bh == tb->FR[n_h]) ? tb->rkey[n_h] + 1 : 0;
+		n_son_number = B_N_CHILD_NUM(tb->FR[n_h], n_child_position);
 		bh = sb_bread(sb, n_son_number);
 		if (!bh)
 			return IO_ERROR;
-		if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
+		if (FILESYSTEM_CHANGED_TB(tb)) {
 			brelse(bh);
 			PROC_INFO_INC(sb, get_neighbors_restart[n_h]);
 			return REPEAT_SEARCH;
 		}
-		brelse(p_s_tb->R[n_h]);
-		p_s_tb->R[n_h] = bh;
+		brelse(tb->R[n_h]);
+		tb->R[n_h] = bh;
 
 		RFALSE(!n_h
 		       && B_FREE_SPACE(bh) !=
 		       MAX_CHILD_SIZE(bh) -
-		       dc_size(B_N_CHILD(p_s_tb->FR[0], n_child_position)),
+		       dc_size(B_N_CHILD(tb->FR[0], n_child_position)),
 		       "PAP-8300: invalid child size of right neighbor (%d != %d - %d)",
 		       B_FREE_SPACE(bh), MAX_CHILD_SIZE(bh),
-		       dc_size(B_N_CHILD(p_s_tb->FR[0], n_child_position)));
+		       dc_size(B_N_CHILD(tb->FR[0], n_child_position)));
 
 	}
 	return CARRY_ON;
@@ -2139,7 +2145,7 @@ static int clear_all_dirty_bits(struct super_block *s, struct buffer_head *bh)
 	return reiserfs_prepare_for_journal(s, bh, 0);
 }
 
-static int wait_tb_buffers_until_unlocked(struct tree_balance *p_s_tb)
+static int wait_tb_buffers_until_unlocked(struct tree_balance *tb)
 {
 	struct buffer_head *locked;
 #ifdef CONFIG_REISERFS_CHECK
@@ -2151,95 +2157,94 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *p_s_tb)
 
 		locked = NULL;
 
-		for (i = p_s_tb->tb_path->path_length;
+		for (i = tb->tb_path->path_length;
 		     !locked && i > ILLEGAL_PATH_ELEMENT_OFFSET; i--) {
-			if (PATH_OFFSET_PBUFFER(p_s_tb->tb_path, i)) {
+			if (PATH_OFFSET_PBUFFER(tb->tb_path, i)) {
 				/* if I understand correctly, we can only be sure the last buffer
 				 ** in the path is in the tree --clm
 				 */
 #ifdef CONFIG_REISERFS_CHECK
-				if (PATH_PLAST_BUFFER(p_s_tb->tb_path) ==
-				    PATH_OFFSET_PBUFFER(p_s_tb->tb_path, i)) {
-					tb_buffer_sanity_check(p_s_tb->tb_sb,
+				if (PATH_PLAST_BUFFER(tb->tb_path) ==
+				    PATH_OFFSET_PBUFFER(tb->tb_path, i))
+					tb_buffer_sanity_check(tb->tb_sb,
 							       PATH_OFFSET_PBUFFER
-							       (p_s_tb->tb_path,
+							       (tb->tb_path,
 								i), "S",
-							       p_s_tb->tb_path->
+							       tb->tb_path->
 							       path_length - i);
-				}
 #endif
-				if (!clear_all_dirty_bits(p_s_tb->tb_sb,
+				if (!clear_all_dirty_bits(tb->tb_sb,
 							  PATH_OFFSET_PBUFFER
-							  (p_s_tb->tb_path,
+							  (tb->tb_path,
 							   i))) {
 					locked =
-					    PATH_OFFSET_PBUFFER(p_s_tb->tb_path,
+					    PATH_OFFSET_PBUFFER(tb->tb_path,
 								i);
 				}
 			}
 		}
 
-		for (i = 0; !locked && i < MAX_HEIGHT && p_s_tb->insert_size[i];
+		for (i = 0; !locked && i < MAX_HEIGHT && tb->insert_size[i];
 		     i++) {
 
-			if (p_s_tb->lnum[i]) {
+			if (tb->lnum[i]) {
 
-				if (p_s_tb->L[i]) {
-					tb_buffer_sanity_check(p_s_tb->tb_sb,
-							       p_s_tb->L[i],
+				if (tb->L[i]) {
+					tb_buffer_sanity_check(tb->tb_sb,
+							       tb->L[i],
 							       "L", i);
 					if (!clear_all_dirty_bits
-					    (p_s_tb->tb_sb, p_s_tb->L[i]))
-						locked = p_s_tb->L[i];
+					    (tb->tb_sb, tb->L[i]))
+						locked = tb->L[i];
 				}
 
-				if (!locked && p_s_tb->FL[i]) {
-					tb_buffer_sanity_check(p_s_tb->tb_sb,
-							       p_s_tb->FL[i],
+				if (!locked && tb->FL[i]) {
+					tb_buffer_sanity_check(tb->tb_sb,
+							       tb->FL[i],
 							       "FL", i);
 					if (!clear_all_dirty_bits
-					    (p_s_tb->tb_sb, p_s_tb->FL[i]))
-						locked = p_s_tb->FL[i];
+					    (tb->tb_sb, tb->FL[i]))
+						locked = tb->FL[i];
 				}
 
-				if (!locked && p_s_tb->CFL[i]) {
-					tb_buffer_sanity_check(p_s_tb->tb_sb,
-							       p_s_tb->CFL[i],
+				if (!locked && tb->CFL[i]) {
+					tb_buffer_sanity_check(tb->tb_sb,
+							       tb->CFL[i],
 							       "CFL", i);
 					if (!clear_all_dirty_bits
-					    (p_s_tb->tb_sb, p_s_tb->CFL[i]))
-						locked = p_s_tb->CFL[i];
+					    (tb->tb_sb, tb->CFL[i]))
+						locked = tb->CFL[i];
 				}
 
 			}
 
-			if (!locked && (p_s_tb->rnum[i])) {
+			if (!locked && (tb->rnum[i])) {
 
-				if (p_s_tb->R[i]) {
-					tb_buffer_sanity_check(p_s_tb->tb_sb,
-							       p_s_tb->R[i],
+				if (tb->R[i]) {
+					tb_buffer_sanity_check(tb->tb_sb,
+							       tb->R[i],
 							       "R", i);
 					if (!clear_all_dirty_bits
-					    (p_s_tb->tb_sb, p_s_tb->R[i]))
-						locked = p_s_tb->R[i];
+					    (tb->tb_sb, tb->R[i]))
+						locked = tb->R[i];
 				}
 
-				if (!locked && p_s_tb->FR[i]) {
-					tb_buffer_sanity_check(p_s_tb->tb_sb,
-							       p_s_tb->FR[i],
+				if (!locked && tb->FR[i]) {
+					tb_buffer_sanity_check(tb->tb_sb,
+							       tb->FR[i],
 							       "FR", i);
 					if (!clear_all_dirty_bits
-					    (p_s_tb->tb_sb, p_s_tb->FR[i]))
-						locked = p_s_tb->FR[i];
+					    (tb->tb_sb, tb->FR[i]))
+						locked = tb->FR[i];
 				}
 
-				if (!locked && p_s_tb->CFR[i]) {
-					tb_buffer_sanity_check(p_s_tb->tb_sb,
-							       p_s_tb->CFR[i],
+				if (!locked && tb->CFR[i]) {
+					tb_buffer_sanity_check(tb->tb_sb,
+							       tb->CFR[i],
 							       "CFR", i);
 					if (!clear_all_dirty_bits
-					    (p_s_tb->tb_sb, p_s_tb->CFR[i]))
-						locked = p_s_tb->CFR[i];
+					    (tb->tb_sb, tb->CFR[i]))
+						locked = tb->CFR[i];
 				}
 			}
 		}
@@ -2252,10 +2257,10 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *p_s_tb)
 		 ** --clm
 		 */
 		for (i = 0; !locked && i < MAX_FEB_SIZE; i++) {
-			if (p_s_tb->FEB[i]) {
+			if (tb->FEB[i]) {
 				if (!clear_all_dirty_bits
-				    (p_s_tb->tb_sb, p_s_tb->FEB[i]))
-					locked = p_s_tb->FEB[i];
+				    (tb->tb_sb, tb->FEB[i]))
+					locked = tb->FEB[i];
 			}
 		}
 
@@ -2263,21 +2268,20 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *p_s_tb)
 #ifdef CONFIG_REISERFS_CHECK
 			repeat_counter++;
 			if ((repeat_counter % 10000) == 0) {
-				reiserfs_warning(p_s_tb->tb_sb, "reiserfs-8200",
+				reiserfs_warning(tb->tb_sb, "reiserfs-8200",
 						 "too many iterations waiting "
 						 "for buffer to unlock "
 						 "(%b)", locked);
 
 				/* Don't loop forever.  Try to recover from possible error. */
 
-				return (FILESYSTEM_CHANGED_TB(p_s_tb)) ?
+				return (FILESYSTEM_CHANGED_TB(tb)) ?
 				    REPEAT_SEARCH : CARRY_ON;
 			}
 #endif
 			__wait_on_buffer(locked);
-			if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
+			if (FILESYSTEM_CHANGED_TB(tb))
 				return REPEAT_SEARCH;
-			}
 		}
 
 	} while (locked);
@@ -2307,138 +2311,136 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *p_s_tb)
  *	tb	tree_balance structure;
  *	inum	item number in S[h];
  *      pos_in_item - comment this if you can
- *      ins_ih & ins_sd are used when inserting
+ *      ins_ih	item head of item being inserted
+ *	data	inserted item or data to be pasted
  * Returns:	1 - schedule occurred while the function worked;
  *	        0 - schedule didn't occur while the function worked;
  *             -1 - if no_disk_space
  */
 
-int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb, struct item_head *p_s_ins_ih,	// item head of item being inserted
-	      const void *data	// inserted item or data to be pasted
-    )
+int fix_nodes(int n_op_mode, struct tree_balance *tb,
+	      struct item_head *p_s_ins_ih, const void *data)
 {
-	int n_ret_value, n_h, n_item_num = PATH_LAST_POSITION(p_s_tb->tb_path);
+	int n_ret_value, n_h, n_item_num = PATH_LAST_POSITION(tb->tb_path);
 	int n_pos_in_item;
 
 	/* we set wait_tb_buffers_run when we have to restore any dirty bits cleared
 	 ** during wait_tb_buffers_run
 	 */
 	int wait_tb_buffers_run = 0;
-	struct buffer_head *p_s_tbS0 = PATH_PLAST_BUFFER(p_s_tb->tb_path);
+	struct buffer_head *tbS0 = PATH_PLAST_BUFFER(tb->tb_path);
 
-	++REISERFS_SB(p_s_tb->tb_sb)->s_fix_nodes;
+	++REISERFS_SB(tb->tb_sb)->s_fix_nodes;
 
-	n_pos_in_item = p_s_tb->tb_path->pos_in_item;
+	n_pos_in_item = tb->tb_path->pos_in_item;
 
-	p_s_tb->fs_gen = get_generation(p_s_tb->tb_sb);
+	tb->fs_gen = get_generation(tb->tb_sb);
 
 	/* we prepare and log the super here so it will already be in the
 	 ** transaction when do_balance needs to change it.
 	 ** This way do_balance won't have to schedule when trying to prepare
 	 ** the super for logging
 	 */
-	reiserfs_prepare_for_journal(p_s_tb->tb_sb,
-				     SB_BUFFER_WITH_SB(p_s_tb->tb_sb), 1);
-	journal_mark_dirty(p_s_tb->transaction_handle, p_s_tb->tb_sb,
-			   SB_BUFFER_WITH_SB(p_s_tb->tb_sb));
-	if (FILESYSTEM_CHANGED_TB(p_s_tb))
+	reiserfs_prepare_for_journal(tb->tb_sb,
+				     SB_BUFFER_WITH_SB(tb->tb_sb), 1);
+	journal_mark_dirty(tb->transaction_handle, tb->tb_sb,
+			   SB_BUFFER_WITH_SB(tb->tb_sb));
+	if (FILESYSTEM_CHANGED_TB(tb))
 		return REPEAT_SEARCH;
 
 	/* if it possible in indirect_to_direct conversion */
-	if (buffer_locked(p_s_tbS0)) {
-		__wait_on_buffer(p_s_tbS0);
-		if (FILESYSTEM_CHANGED_TB(p_s_tb))
+	if (buffer_locked(tbS0)) {
+		__wait_on_buffer(tbS0);
+		if (FILESYSTEM_CHANGED_TB(tb))
 			return REPEAT_SEARCH;
 	}
 #ifdef CONFIG_REISERFS_CHECK
 	if (cur_tb) {
 		print_cur_tb("fix_nodes");
-		reiserfs_panic(p_s_tb->tb_sb, "PAP-8305",
+		reiserfs_panic(tb->tb_sb, "PAP-8305",
 			       "there is pending do_balance");
 	}
 
-	if (!buffer_uptodate(p_s_tbS0) || !B_IS_IN_TREE(p_s_tbS0)) {
-		reiserfs_panic(p_s_tb->tb_sb, "PAP-8320", "S[0] (%b %z) is "
+	if (!buffer_uptodate(tbS0) || !B_IS_IN_TREE(tbS0))
+		reiserfs_panic(tb->tb_sb, "PAP-8320", "S[0] (%b %z) is "
 			       "not uptodate at the beginning of fix_nodes "
 			       "or not in tree (mode %c)",
-			       p_s_tbS0, p_s_tbS0, n_op_mode);
-	}
+			       tbS0, tbS0, n_op_mode);
 
 	/* Check parameters. */
 	switch (n_op_mode) {
 	case M_INSERT:
-		if (n_item_num <= 0 || n_item_num > B_NR_ITEMS(p_s_tbS0))
-			reiserfs_panic(p_s_tb->tb_sb, "PAP-8330", "Incorrect "
+		if (n_item_num <= 0 || n_item_num > B_NR_ITEMS(tbS0))
+			reiserfs_panic(tb->tb_sb, "PAP-8330", "Incorrect "
 				       "item number %d (in S0 - %d) in case "
 				       "of insert", n_item_num,
-				       B_NR_ITEMS(p_s_tbS0));
+				       B_NR_ITEMS(tbS0));
 		break;
 	case M_PASTE:
 	case M_DELETE:
 	case M_CUT:
-		if (n_item_num < 0 || n_item_num >= B_NR_ITEMS(p_s_tbS0)) {
-			print_block(p_s_tbS0, 0, -1, -1);
-			reiserfs_panic(p_s_tb->tb_sb, "PAP-8335", "Incorrect "
+		if (n_item_num < 0 || n_item_num >= B_NR_ITEMS(tbS0)) {
+			print_block(tbS0, 0, -1, -1);
+			reiserfs_panic(tb->tb_sb, "PAP-8335", "Incorrect "
 				       "item number(%d); mode = %c "
 				       "insert_size = %d",
 				       n_item_num, n_op_mode,
-				       p_s_tb->insert_size[0]);
+				       tb->insert_size[0]);
 		}
 		break;
 	default:
-		reiserfs_panic(p_s_tb->tb_sb, "PAP-8340", "Incorrect mode "
+		reiserfs_panic(tb->tb_sb, "PAP-8340", "Incorrect mode "
 			       "of operation");
 	}
 #endif
 
-	if (get_mem_for_virtual_node(p_s_tb) == REPEAT_SEARCH)
+	if (get_mem_for_virtual_node(tb) == REPEAT_SEARCH)
 		// FIXME: maybe -ENOMEM when tb->vn_buf == 0? Now just repeat
 		return REPEAT_SEARCH;
 
 	/* Starting from the leaf level; for all levels n_h of the tree. */
-	for (n_h = 0; n_h < MAX_HEIGHT && p_s_tb->insert_size[n_h]; n_h++) {
-		if ((n_ret_value = get_direct_parent(p_s_tb, n_h)) != CARRY_ON) {
+	for (n_h = 0; n_h < MAX_HEIGHT && tb->insert_size[n_h]; n_h++) {
+		n_ret_value = get_direct_parent(tb, n_h);
+		if (n_ret_value != CARRY_ON)
 			goto repeat;
-		}
 
-		if ((n_ret_value =
-		     check_balance(n_op_mode, p_s_tb, n_h, n_item_num,
-				   n_pos_in_item, p_s_ins_ih,
-				   data)) != CARRY_ON) {
+		n_ret_value = check_balance(n_op_mode, tb, n_h, n_item_num,
+					    n_pos_in_item, p_s_ins_ih, data);
+		if (n_ret_value != CARRY_ON) {
 			if (n_ret_value == NO_BALANCING_NEEDED) {
 				/* No balancing for higher levels needed. */
-				if ((n_ret_value =
-				     get_neighbors(p_s_tb, n_h)) != CARRY_ON) {
+				n_ret_value = get_neighbors(tb, n_h);
+				if (n_ret_value != CARRY_ON)
 					goto repeat;
-				}
 				if (n_h != MAX_HEIGHT - 1)
-					p_s_tb->insert_size[n_h + 1] = 0;
+					tb->insert_size[n_h + 1] = 0;
 				/* ok, analysis and resource gathering are complete */
 				break;
 			}
 			goto repeat;
 		}
 
-		if ((n_ret_value = get_neighbors(p_s_tb, n_h)) != CARRY_ON) {
+		n_ret_value = get_neighbors(tb, n_h);
+		if (n_ret_value != CARRY_ON)
 			goto repeat;
-		}
 
-		if ((n_ret_value = get_empty_nodes(p_s_tb, n_h)) != CARRY_ON) {
-			goto repeat;	/* No disk space, or schedule occurred and
-					   analysis may be invalid and needs to be redone. */
-		}
+		/* No disk space, or schedule occurred and analysis may be
+		 * invalid and needs to be redone. */
+		n_ret_value = get_empty_nodes(tb, n_h);
+		if (n_ret_value != CARRY_ON)
+			goto repeat;
 
-		if (!PATH_H_PBUFFER(p_s_tb->tb_path, n_h)) {
+		if (!PATH_H_PBUFFER(tb->tb_path, n_h)) {
 			/* We have a positive insert size but no nodes exist on this
 			   level, this means that we are creating a new root. */
 
-			RFALSE(p_s_tb->blknum[n_h] != 1,
+			RFALSE(tb->blknum[n_h] != 1,
 			       "PAP-8350: creating new empty root");
 
 			if (n_h < MAX_HEIGHT - 1)
-				p_s_tb->insert_size[n_h + 1] = 0;
-		} else if (!PATH_H_PBUFFER(p_s_tb->tb_path, n_h + 1)) {
-			if (p_s_tb->blknum[n_h] > 1) {
+				tb->insert_size[n_h + 1] = 0;
+		} else if (!PATH_H_PBUFFER(tb->tb_path, n_h + 1)) {
+			if (tb->blknum[n_h] > 1) {
 				/* The tree needs to be grown, so this node S[n_h]
 				   which is the root node is split into two nodes,
 				   and a new node (S[n_h+1]) will be created to
@@ -2447,19 +2449,20 @@ int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb, struct item_head *p_s_
 				RFALSE(n_h == MAX_HEIGHT - 1,
 				       "PAP-8355: attempt to create too high of a tree");
 
-				p_s_tb->insert_size[n_h + 1] =
+				tb->insert_size[n_h + 1] =
 				    (DC_SIZE +
-				     KEY_SIZE) * (p_s_tb->blknum[n_h] - 1) +
+				     KEY_SIZE) * (tb->blknum[n_h] - 1) +
 				    DC_SIZE;
 			} else if (n_h < MAX_HEIGHT - 1)
-				p_s_tb->insert_size[n_h + 1] = 0;
+				tb->insert_size[n_h + 1] = 0;
 		} else
-			p_s_tb->insert_size[n_h + 1] =
-			    (DC_SIZE + KEY_SIZE) * (p_s_tb->blknum[n_h] - 1);
+			tb->insert_size[n_h + 1] =
+			    (DC_SIZE + KEY_SIZE) * (tb->blknum[n_h] - 1);
 	}
 
-	if ((n_ret_value = wait_tb_buffers_until_unlocked(p_s_tb)) == CARRY_ON) {
-		if (FILESYSTEM_CHANGED_TB(p_s_tb)) {
+	n_ret_value = wait_tb_buffers_until_unlocked(tb);
+	if (n_ret_value == CARRY_ON) {
+		if (FILESYSTEM_CHANGED_TB(tb)) {
 			wait_tb_buffers_run = 1;
 			n_ret_value = REPEAT_SEARCH;
 			goto repeat;
@@ -2482,50 +2485,49 @@ int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb, struct item_head *p_s_
 
 		/* Release path buffers. */
 		if (wait_tb_buffers_run) {
-			pathrelse_and_restore(p_s_tb->tb_sb, p_s_tb->tb_path);
+			pathrelse_and_restore(tb->tb_sb, tb->tb_path);
 		} else {
-			pathrelse(p_s_tb->tb_path);
+			pathrelse(tb->tb_path);
 		}
 		/* brelse all resources collected for balancing */
 		for (i = 0; i < MAX_HEIGHT; i++) {
 			if (wait_tb_buffers_run) {
-				reiserfs_restore_prepared_buffer(p_s_tb->tb_sb,
-								 p_s_tb->L[i]);
-				reiserfs_restore_prepared_buffer(p_s_tb->tb_sb,
-								 p_s_tb->R[i]);
-				reiserfs_restore_prepared_buffer(p_s_tb->tb_sb,
-								 p_s_tb->FL[i]);
-				reiserfs_restore_prepared_buffer(p_s_tb->tb_sb,
-								 p_s_tb->FR[i]);
-				reiserfs_restore_prepared_buffer(p_s_tb->tb_sb,
-								 p_s_tb->
+				reiserfs_restore_prepared_buffer(tb->tb_sb,
+								 tb->L[i]);
+				reiserfs_restore_prepared_buffer(tb->tb_sb,
+								 tb->R[i]);
+				reiserfs_restore_prepared_buffer(tb->tb_sb,
+								 tb->FL[i]);
+				reiserfs_restore_prepared_buffer(tb->tb_sb,
+								 tb->FR[i]);
+				reiserfs_restore_prepared_buffer(tb->tb_sb,
+								 tb->
 								 CFL[i]);
-				reiserfs_restore_prepared_buffer(p_s_tb->tb_sb,
-								 p_s_tb->
+				reiserfs_restore_prepared_buffer(tb->tb_sb,
+								 tb->
 								 CFR[i]);
 			}
 
-			brelse(p_s_tb->L[i]);
-			brelse(p_s_tb->R[i]);
-			brelse(p_s_tb->FL[i]);
-			brelse(p_s_tb->FR[i]);
-			brelse(p_s_tb->CFL[i]);
-			brelse(p_s_tb->CFR[i]);
-
-			p_s_tb->L[i] = NULL;
-			p_s_tb->R[i] = NULL;
-			p_s_tb->FL[i] = NULL;
-			p_s_tb->FR[i] = NULL;
-			p_s_tb->CFL[i] = NULL;
-			p_s_tb->CFR[i] = NULL;
+			brelse(tb->L[i]);
+			brelse(tb->R[i]);
+			brelse(tb->FL[i]);
+			brelse(tb->FR[i]);
+			brelse(tb->CFL[i]);
+			brelse(tb->CFR[i]);
+
+			tb->L[i] = NULL;
+			tb->R[i] = NULL;
+			tb->FL[i] = NULL;
+			tb->FR[i] = NULL;
+			tb->CFL[i] = NULL;
+			tb->CFR[i] = NULL;
 		}
 
 		if (wait_tb_buffers_run) {
 			for (i = 0; i < MAX_FEB_SIZE; i++) {
-				if (p_s_tb->FEB[i]) {
+				if (tb->FEB[i])
 					reiserfs_restore_prepared_buffer
-					    (p_s_tb->tb_sb, p_s_tb->FEB[i]);
-				}
+					    (tb->tb_sb, tb->FEB[i]);
 			}
 		}
 		return n_ret_value;
@@ -2533,7 +2535,7 @@ int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb, struct item_head *p_s_
 
 }
 
-/* Anatoly will probably forgive me renaming p_s_tb to tb. I just
+/* Anatoly will probably forgive me renaming tb to tb. I just
    wanted to make lines shorter */
 void unfix_nodes(struct tree_balance *tb)
 {
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index 8f220fb777d7..5e867be559ea 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -1063,17 +1063,17 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 }
 
 /* Calculate number of bytes which will be deleted or cut during balance */
-static int calc_deleted_bytes_number(struct tree_balance *p_s_tb, char c_mode)
+static int calc_deleted_bytes_number(struct tree_balance *tb, char c_mode)
 {
 	int n_del_size;
-	struct item_head *p_le_ih = PATH_PITEM_HEAD(p_s_tb->tb_path);
+	struct item_head *p_le_ih = PATH_PITEM_HEAD(tb->tb_path);
 
 	if (is_statdata_le_ih(p_le_ih))
 		return 0;
 
 	n_del_size =
 	    (c_mode ==
-	     M_DELETE) ? ih_item_len(p_le_ih) : -p_s_tb->insert_size[0];
+	     M_DELETE) ? ih_item_len(p_le_ih) : -tb->insert_size[0];
 	if (is_direntry_le_ih(p_le_ih)) {
 		// return EMPTY_DIR_SIZE; /* We delete emty directoris only. */
 		// we can't use EMPTY_DIR_SIZE, as old format dirs have a different
@@ -1083,25 +1083,26 @@ static int calc_deleted_bytes_number(struct tree_balance *p_s_tb, char c_mode)
 	}
 
 	if (is_indirect_le_ih(p_le_ih))
-		n_del_size = (n_del_size / UNFM_P_SIZE) * (PATH_PLAST_BUFFER(p_s_tb->tb_path)->b_size);	// - get_ih_free_space (p_le_ih);
+		n_del_size = (n_del_size / UNFM_P_SIZE) *
+				(PATH_PLAST_BUFFER(tb->tb_path)->b_size);
 	return n_del_size;
 }
 
 static void init_tb_struct(struct reiserfs_transaction_handle *th,
-			   struct tree_balance *p_s_tb,
+			   struct tree_balance *tb,
 			   struct super_block *sb,
 			   struct treepath *p_s_path, int n_size)
 {
 
 	BUG_ON(!th->t_trans_id);
 
-	memset(p_s_tb, '\0', sizeof(struct tree_balance));
-	p_s_tb->transaction_handle = th;
-	p_s_tb->tb_sb = sb;
-	p_s_tb->tb_path = p_s_path;
+	memset(tb, '\0', sizeof(struct tree_balance));
+	tb->transaction_handle = th;
+	tb->tb_sb = sb;
+	tb->tb_path = p_s_path;
 	PATH_OFFSET_PBUFFER(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = NULL;
 	PATH_OFFSET_POSITION(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = 0;
-	p_s_tb->insert_size[0] = n_size;
+	tb->insert_size[0] = n_size;
 }
 
 void padd_item(char *item, int total_length, int length)
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 3192dc793226..b72dc2095478 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -2004,7 +2004,7 @@ extern const struct address_space_operations reiserfs_address_space_operations;
 
 /* fix_nodes.c */
 
-int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb,
+int fix_nodes(int n_op_mode, struct tree_balance *tb,
 	      struct item_head *p_s_ins_ih, const void *);
 void unfix_nodes(struct tree_balance *);
 
-- 
cgit v1.2.3


From d68caa9530a8ba54f97002e02bf6a0ad2462b8c0 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Mon, 30 Mar 2009 14:02:49 -0400
Subject: reiserfs: rename p_._ variables

This patch is a simple s/p_._//g to the reiserfs code.  This is the
fifth in a series of patches to rip out some of the awful variable
naming in reiserfs.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/reiserfs/file.c            |   6 +-
 fs/reiserfs/fix_node.c        | 169 ++++++++-------
 fs/reiserfs/stree.c           | 472 +++++++++++++++++++++---------------------
 fs/reiserfs/tail_conversion.c |  28 +--
 include/linux/reiserfs_fs.h   |  46 ++--
 5 files changed, 365 insertions(+), 356 deletions(-)

(limited to 'include')

diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index a73579f66214..cde16429ff00 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -134,10 +134,10 @@ static void reiserfs_vfs_truncate_file(struct inode *inode)
  * be removed...
  */
 
-static int reiserfs_sync_file(struct file *p_s_filp,
-			      struct dentry *p_s_dentry, int datasync)
+static int reiserfs_sync_file(struct file *filp,
+			      struct dentry *dentry, int datasync)
 {
-	struct inode *inode = p_s_dentry->d_inode;
+	struct inode *inode = dentry->d_inode;
 	int n_err;
 	int barrier_done;
 
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 5236a8829e31..d97a55574ba9 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -780,9 +780,9 @@ static void free_buffers_in_tb(struct tree_balance *tb)
 /* The function is NOT SCHEDULE-SAFE! */
 static int get_empty_nodes(struct tree_balance *tb, int n_h)
 {
-	struct buffer_head *p_s_new_bh,
-	    *p_s_Sh = PATH_H_PBUFFER(tb->tb_path, n_h);
-	b_blocknr_t *p_n_blocknr, a_n_blocknrs[MAX_AMOUNT_NEEDED] = { 0, };
+	struct buffer_head *new_bh,
+	    *Sh = PATH_H_PBUFFER(tb->tb_path, n_h);
+	b_blocknr_t *blocknr, a_n_blocknrs[MAX_AMOUNT_NEEDED] = { 0, };
 	int n_counter, n_number_of_freeblk, n_amount_needed,	/* number of needed empty blocks */
 	 n_retval = CARRY_ON;
 	struct super_block *sb = tb->tb_sb;
@@ -810,8 +810,8 @@ static int get_empty_nodes(struct tree_balance *tb, int n_h)
 						   1) : 0;
 
 	/* Allocate missing empty blocks. */
-	/* if p_s_Sh == 0  then we are getting a new root */
-	n_amount_needed = (p_s_Sh) ? (tb->blknum[n_h] - 1) : 1;
+	/* if Sh == 0  then we are getting a new root */
+	n_amount_needed = (Sh) ? (tb->blknum[n_h] - 1) : 1;
 	/*  Amount_needed = the amount that we need more than the amount that we have. */
 	if (n_amount_needed > n_number_of_freeblk)
 		n_amount_needed -= n_number_of_freeblk;
@@ -824,25 +824,25 @@ static int get_empty_nodes(struct tree_balance *tb, int n_h)
 		return NO_DISK_SPACE;
 
 	/* for each blocknumber we just got, get a buffer and stick it on FEB */
-	for (p_n_blocknr = a_n_blocknrs, n_counter = 0;
-	     n_counter < n_amount_needed; p_n_blocknr++, n_counter++) {
+	for (blocknr = a_n_blocknrs, n_counter = 0;
+	     n_counter < n_amount_needed; blocknr++, n_counter++) {
 
-		RFALSE(!*p_n_blocknr,
+		RFALSE(!*blocknr,
 		       "PAP-8135: reiserfs_new_blocknrs failed when got new blocks");
 
-		p_s_new_bh = sb_getblk(sb, *p_n_blocknr);
-		RFALSE(buffer_dirty(p_s_new_bh) ||
-		       buffer_journaled(p_s_new_bh) ||
-		       buffer_journal_dirty(p_s_new_bh),
+		new_bh = sb_getblk(sb, *blocknr);
+		RFALSE(buffer_dirty(new_bh) ||
+		       buffer_journaled(new_bh) ||
+		       buffer_journal_dirty(new_bh),
 		       "PAP-8140: journlaled or dirty buffer %b for the new block",
-		       p_s_new_bh);
+		       new_bh);
 
 		/* Put empty buffers into the array. */
 		RFALSE(tb->FEB[tb->cur_blknum],
 		       "PAP-8141: busy slot for new buffer");
 
-		set_buffer_journal_new(p_s_new_bh);
-		tb->FEB[tb->cur_blknum++] = p_s_new_bh;
+		set_buffer_journal_new(new_bh);
+		tb->FEB[tb->cur_blknum++] = new_bh;
 	}
 
 	if (n_retval == CARRY_ON && FILESYSTEM_CHANGED_TB(tb))
@@ -898,7 +898,7 @@ static int get_rfree(struct tree_balance *tb, int h)
 /* Check whether left neighbor is in memory. */
 static int is_left_neighbor_in_cache(struct tree_balance *tb, int n_h)
 {
-	struct buffer_head *p_s_father, *left;
+	struct buffer_head *father, *left;
 	struct super_block *sb = tb->tb_sb;
 	b_blocknr_t n_left_neighbor_blocknr;
 	int n_left_neighbor_position;
@@ -908,18 +908,18 @@ static int is_left_neighbor_in_cache(struct tree_balance *tb, int n_h)
 		return 0;
 
 	/* Calculate father of the node to be balanced. */
-	p_s_father = PATH_H_PBUFFER(tb->tb_path, n_h + 1);
+	father = PATH_H_PBUFFER(tb->tb_path, n_h + 1);
 
-	RFALSE(!p_s_father ||
-	       !B_IS_IN_TREE(p_s_father) ||
+	RFALSE(!father ||
+	       !B_IS_IN_TREE(father) ||
 	       !B_IS_IN_TREE(tb->FL[n_h]) ||
-	       !buffer_uptodate(p_s_father) ||
+	       !buffer_uptodate(father) ||
 	       !buffer_uptodate(tb->FL[n_h]),
 	       "vs-8165: F[h] (%b) or FL[h] (%b) is invalid",
-	       p_s_father, tb->FL[n_h]);
+	       father, tb->FL[n_h]);
 
 	/* Get position of the pointer to the left neighbor into the left father. */
-	n_left_neighbor_position = (p_s_father == tb->FL[n_h]) ?
+	n_left_neighbor_position = (father == tb->FL[n_h]) ?
 	    tb->lkey[n_h] : B_NR_ITEMS(tb->FL[n_h]);
 	/* Get left neighbor block number. */
 	n_left_neighbor_blocknr =
@@ -940,10 +940,10 @@ static int is_left_neighbor_in_cache(struct tree_balance *tb, int n_h)
 #define LEFT_PARENTS  'l'
 #define RIGHT_PARENTS 'r'
 
-static void decrement_key(struct cpu_key *p_s_key)
+static void decrement_key(struct cpu_key *key)
 {
 	// call item specific function for this key
-	item_ops[cpu_key_k_type(p_s_key)]->decrement_key(p_s_key);
+	item_ops[cpu_key_k_type(key)]->decrement_key(key);
 }
 
 /* Calculate far left/right parent of the left/right neighbor of the current node, that
@@ -956,17 +956,17 @@ static void decrement_key(struct cpu_key *p_s_key)
  */
 static int get_far_parent(struct tree_balance *tb,
 			  int n_h,
-			  struct buffer_head **pp_s_father,
-			  struct buffer_head **pp_s_com_father, char c_lr_par)
+			  struct buffer_head **pfather,
+			  struct buffer_head **pcom_father, char c_lr_par)
 {
-	struct buffer_head *p_s_parent;
+	struct buffer_head *parent;
 	INITIALIZE_PATH(s_path_to_neighbor_father);
-	struct treepath *p_s_path = tb->tb_path;
+	struct treepath *path = tb->tb_path;
 	struct cpu_key s_lr_father_key;
 	int n_counter,
 	    n_position = INT_MAX,
 	    n_first_last_position = 0,
-	    n_path_offset = PATH_H_PATH_OFFSET(p_s_path, n_h);
+	    n_path_offset = PATH_H_PATH_OFFSET(path, n_h);
 
 	/* Starting from F[n_h] go upwards in the tree, and look for the common
 	   ancestor of F[n_h], and its neighbor l/r, that should be obtained. */
@@ -979,25 +979,25 @@ static int get_far_parent(struct tree_balance *tb,
 	for (; n_counter > FIRST_PATH_ELEMENT_OFFSET; n_counter--) {
 		/* Check whether parent of the current buffer in the path is really parent in the tree. */
 		if (!B_IS_IN_TREE
-		    (p_s_parent = PATH_OFFSET_PBUFFER(p_s_path, n_counter - 1)))
+		    (parent = PATH_OFFSET_PBUFFER(path, n_counter - 1)))
 			return REPEAT_SEARCH;
 		/* Check whether position in the parent is correct. */
 		if ((n_position =
-		     PATH_OFFSET_POSITION(p_s_path,
+		     PATH_OFFSET_POSITION(path,
 					  n_counter - 1)) >
-		    B_NR_ITEMS(p_s_parent))
+		    B_NR_ITEMS(parent))
 			return REPEAT_SEARCH;
 		/* Check whether parent at the path really points to the child. */
-		if (B_N_CHILD_NUM(p_s_parent, n_position) !=
-		    PATH_OFFSET_PBUFFER(p_s_path, n_counter)->b_blocknr)
+		if (B_N_CHILD_NUM(parent, n_position) !=
+		    PATH_OFFSET_PBUFFER(path, n_counter)->b_blocknr)
 			return REPEAT_SEARCH;
 		/* Return delimiting key if position in the parent is not equal to first/last one. */
 		if (c_lr_par == RIGHT_PARENTS)
-			n_first_last_position = B_NR_ITEMS(p_s_parent);
+			n_first_last_position = B_NR_ITEMS(parent);
 		if (n_position != n_first_last_position) {
-			*pp_s_com_father = p_s_parent;
-			get_bh(*pp_s_com_father);
-			/*(*pp_s_com_father = p_s_parent)->b_count++; */
+			*pcom_father = parent;
+			get_bh(*pcom_father);
+			/*(*pcom_father = parent)->b_count++; */
 			break;
 		}
 	}
@@ -1009,22 +1009,22 @@ static int get_far_parent(struct tree_balance *tb,
 		    (tb->tb_path,
 		     FIRST_PATH_ELEMENT_OFFSET)->b_blocknr ==
 		    SB_ROOT_BLOCK(tb->tb_sb)) {
-			*pp_s_father = *pp_s_com_father = NULL;
+			*pfather = *pcom_father = NULL;
 			return CARRY_ON;
 		}
 		return REPEAT_SEARCH;
 	}
 
-	RFALSE(B_LEVEL(*pp_s_com_father) <= DISK_LEAF_NODE_LEVEL,
+	RFALSE(B_LEVEL(*pcom_father) <= DISK_LEAF_NODE_LEVEL,
 	       "PAP-8185: (%b %z) level too small",
-	       *pp_s_com_father, *pp_s_com_father);
+	       *pcom_father, *pcom_father);
 
 	/* Check whether the common parent is locked. */
 
-	if (buffer_locked(*pp_s_com_father)) {
-		__wait_on_buffer(*pp_s_com_father);
+	if (buffer_locked(*pcom_father)) {
+		__wait_on_buffer(*pcom_father);
 		if (FILESYSTEM_CHANGED_TB(tb)) {
-			brelse(*pp_s_com_father);
+			brelse(*pcom_father);
 			return REPEAT_SEARCH;
 		}
 	}
@@ -1034,7 +1034,7 @@ static int get_far_parent(struct tree_balance *tb,
 
 	/* Form key to get parent of the left/right neighbor. */
 	le_key2cpu_key(&s_lr_father_key,
-		       B_N_PDELIM_KEY(*pp_s_com_father,
+		       B_N_PDELIM_KEY(*pcom_father,
 				      (c_lr_par ==
 				       LEFT_PARENTS) ? (tb->lkey[n_h - 1] =
 							n_position -
@@ -1053,14 +1053,14 @@ static int get_far_parent(struct tree_balance *tb,
 
 	if (FILESYSTEM_CHANGED_TB(tb)) {
 		pathrelse(&s_path_to_neighbor_father);
-		brelse(*pp_s_com_father);
+		brelse(*pcom_father);
 		return REPEAT_SEARCH;
 	}
 
-	*pp_s_father = PATH_PLAST_BUFFER(&s_path_to_neighbor_father);
+	*pfather = PATH_PLAST_BUFFER(&s_path_to_neighbor_father);
 
-	RFALSE(B_LEVEL(*pp_s_father) != n_h + 1,
-	       "PAP-8190: (%b %z) level too small", *pp_s_father, *pp_s_father);
+	RFALSE(B_LEVEL(*pfather) != n_h + 1,
+	       "PAP-8190: (%b %z) level too small", *pfather, *pfather);
 	RFALSE(s_path_to_neighbor_father.path_length <
 	       FIRST_PATH_ELEMENT_OFFSET, "PAP-8192: path length is too small");
 
@@ -1078,11 +1078,11 @@ static int get_far_parent(struct tree_balance *tb,
  */
 static int get_parents(struct tree_balance *tb, int n_h)
 {
-	struct treepath *p_s_path = tb->tb_path;
+	struct treepath *path = tb->tb_path;
 	int n_position,
 	    n_ret_value,
 	    n_path_offset = PATH_H_PATH_OFFSET(tb->tb_path, n_h);
-	struct buffer_head *p_s_curf, *p_s_curcf;
+	struct buffer_head *curf, *curcf;
 
 	/* Current node is the root of the tree or will be root of the tree */
 	if (n_path_offset <= FIRST_PATH_ELEMENT_OFFSET) {
@@ -1100,66 +1100,65 @@ static int get_parents(struct tree_balance *tb, int n_h)
 	}
 
 	/* Get parent FL[n_path_offset] of L[n_path_offset]. */
-	if ((n_position = PATH_OFFSET_POSITION(p_s_path, n_path_offset - 1))) {
+	n_position = PATH_OFFSET_POSITION(path, n_path_offset - 1);
+	if (n_position) {
 		/* Current node is not the first child of its parent. */
-		/*(p_s_curf = p_s_curcf = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1))->b_count += 2; */
-		p_s_curf = p_s_curcf =
-		    PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1);
-		get_bh(p_s_curf);
-		get_bh(p_s_curf);
+		curf = PATH_OFFSET_PBUFFER(path, n_path_offset - 1);
+		curcf = PATH_OFFSET_PBUFFER(path, n_path_offset - 1);
+		get_bh(curf);
+		get_bh(curf);
 		tb->lkey[n_h] = n_position - 1;
 	} else {
 		/* Calculate current parent of L[n_path_offset], which is the left neighbor of the current node.
 		   Calculate current common parent of L[n_path_offset] and the current node. Note that
 		   CFL[n_path_offset] not equal FL[n_path_offset] and CFL[n_path_offset] not equal F[n_path_offset].
 		   Calculate lkey[n_path_offset]. */
-		if ((n_ret_value = get_far_parent(tb, n_h + 1, &p_s_curf,
-						  &p_s_curcf,
+		if ((n_ret_value = get_far_parent(tb, n_h + 1, &curf,
+						  &curcf,
 						  LEFT_PARENTS)) != CARRY_ON)
 			return n_ret_value;
 	}
 
 	brelse(tb->FL[n_h]);
-	tb->FL[n_h] = p_s_curf;	/* New initialization of FL[n_h]. */
+	tb->FL[n_h] = curf;	/* New initialization of FL[n_h]. */
 	brelse(tb->CFL[n_h]);
-	tb->CFL[n_h] = p_s_curcf;	/* New initialization of CFL[n_h]. */
+	tb->CFL[n_h] = curcf;	/* New initialization of CFL[n_h]. */
 
-	RFALSE((p_s_curf && !B_IS_IN_TREE(p_s_curf)) ||
-	       (p_s_curcf && !B_IS_IN_TREE(p_s_curcf)),
-	       "PAP-8195: FL (%b) or CFL (%b) is invalid", p_s_curf, p_s_curcf);
+	RFALSE((curf && !B_IS_IN_TREE(curf)) ||
+	       (curcf && !B_IS_IN_TREE(curcf)),
+	       "PAP-8195: FL (%b) or CFL (%b) is invalid", curf, curcf);
 
 /* Get parent FR[n_h] of R[n_h]. */
 
 /* Current node is the last child of F[n_h]. FR[n_h] != F[n_h]. */
-	if (n_position == B_NR_ITEMS(PATH_H_PBUFFER(p_s_path, n_h + 1))) {
+	if (n_position == B_NR_ITEMS(PATH_H_PBUFFER(path, n_h + 1))) {
 /* Calculate current parent of R[n_h], which is the right neighbor of F[n_h].
    Calculate current common parent of R[n_h] and current node. Note that CFR[n_h]
    not equal FR[n_path_offset] and CFR[n_h] not equal F[n_h]. */
 		if ((n_ret_value =
-		     get_far_parent(tb, n_h + 1, &p_s_curf, &p_s_curcf,
+		     get_far_parent(tb, n_h + 1, &curf, &curcf,
 				    RIGHT_PARENTS)) != CARRY_ON)
 			return n_ret_value;
 	} else {
 /* Current node is not the last child of its parent F[n_h]. */
-		/*(p_s_curf = p_s_curcf = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1))->b_count += 2; */
-		p_s_curf = p_s_curcf =
-		    PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1);
-		get_bh(p_s_curf);
-		get_bh(p_s_curf);
+		curf = PATH_OFFSET_PBUFFER(path, n_path_offset - 1);
+		curcf = PATH_OFFSET_PBUFFER(path, n_path_offset - 1);
+		get_bh(curf);
+		get_bh(curf);
 		tb->rkey[n_h] = n_position;
 	}
 
 	brelse(tb->FR[n_h]);
 	/* New initialization of FR[n_path_offset]. */
-	tb->FR[n_h] = p_s_curf;
+	tb->FR[n_h] = curf;
 
 	brelse(tb->CFR[n_h]);
 	/* New initialization of CFR[n_path_offset]. */
-	tb->CFR[n_h] = p_s_curcf;
+	tb->CFR[n_h] = curcf;
 
-	RFALSE((p_s_curf && !B_IS_IN_TREE(p_s_curf)) ||
-	       (p_s_curcf && !B_IS_IN_TREE(p_s_curcf)),
-	       "PAP-8205: FR (%b) or CFR (%b) is invalid", p_s_curf, p_s_curcf);
+	RFALSE((curf && !B_IS_IN_TREE(curf)) ||
+	       (curcf && !B_IS_IN_TREE(curcf)),
+	       "PAP-8205: FR (%b) or CFR (%b) is invalid", curf, curcf);
 
 	return CARRY_ON;
 }
@@ -1893,7 +1892,7 @@ static int check_balance(int mode,
 static int get_direct_parent(struct tree_balance *tb, int n_h)
 {
 	struct buffer_head *bh;
-	struct treepath *p_s_path = tb->tb_path;
+	struct treepath *path = tb->tb_path;
 	int n_position,
 	    n_path_offset = PATH_H_PATH_OFFSET(tb->tb_path, n_h);
 
@@ -1903,27 +1902,27 @@ static int get_direct_parent(struct tree_balance *tb, int n_h)
 		RFALSE(n_path_offset < FIRST_PATH_ELEMENT_OFFSET - 1,
 		       "PAP-8260: invalid offset in the path");
 
-		if (PATH_OFFSET_PBUFFER(p_s_path, FIRST_PATH_ELEMENT_OFFSET)->
+		if (PATH_OFFSET_PBUFFER(path, FIRST_PATH_ELEMENT_OFFSET)->
 		    b_blocknr == SB_ROOT_BLOCK(tb->tb_sb)) {
 			/* Root is not changed. */
-			PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1) = NULL;
-			PATH_OFFSET_POSITION(p_s_path, n_path_offset - 1) = 0;
+			PATH_OFFSET_PBUFFER(path, n_path_offset - 1) = NULL;
+			PATH_OFFSET_POSITION(path, n_path_offset - 1) = 0;
 			return CARRY_ON;
 		}
 		return REPEAT_SEARCH;	/* Root is changed and we must recalculate the path. */
 	}
 
 	if (!B_IS_IN_TREE
-	    (bh = PATH_OFFSET_PBUFFER(p_s_path, n_path_offset - 1)))
+	    (bh = PATH_OFFSET_PBUFFER(path, n_path_offset - 1)))
 		return REPEAT_SEARCH;	/* Parent in the path is not in the tree. */
 
 	if ((n_position =
-	     PATH_OFFSET_POSITION(p_s_path,
+	     PATH_OFFSET_POSITION(path,
 				  n_path_offset - 1)) > B_NR_ITEMS(bh))
 		return REPEAT_SEARCH;
 
 	if (B_N_CHILD_NUM(bh, n_position) !=
-	    PATH_OFFSET_PBUFFER(p_s_path, n_path_offset)->b_blocknr)
+	    PATH_OFFSET_PBUFFER(path, n_path_offset)->b_blocknr)
 		/* Parent in the path is not parent of the current node in the tree. */
 		return REPEAT_SEARCH;
 
@@ -2319,7 +2318,7 @@ static int wait_tb_buffers_until_unlocked(struct tree_balance *tb)
  */
 
 int fix_nodes(int n_op_mode, struct tree_balance *tb,
-	      struct item_head *p_s_ins_ih, const void *data)
+	      struct item_head *ins_ih, const void *data)
 {
 	int n_ret_value, n_h, n_item_num = PATH_LAST_POSITION(tb->tb_path);
 	int n_pos_in_item;
@@ -2405,7 +2404,7 @@ int fix_nodes(int n_op_mode, struct tree_balance *tb,
 			goto repeat;
 
 		n_ret_value = check_balance(n_op_mode, tb, n_h, n_item_num,
-					    n_pos_in_item, p_s_ins_ih, data);
+					    n_pos_in_item, ins_ih, data);
 		if (n_ret_value != CARRY_ON) {
 			if (n_ret_value == NO_BALANCING_NEEDED) {
 				/* No balancing for higher levels needed. */
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index 5e867be559ea..fd769c8dac32 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -68,10 +68,10 @@ inline int B_IS_IN_TREE(const struct buffer_head *bh)
 //
 // to gets item head in le form
 //
-inline void copy_item_head(struct item_head *p_v_to,
-			   const struct item_head *p_v_from)
+inline void copy_item_head(struct item_head *to,
+			   const struct item_head *from)
 {
-	memcpy(p_v_to, p_v_from, IH_SIZE);
+	memcpy(to, from, IH_SIZE);
 }
 
 /* k1 is pointer to on-disk structure which is stored in little-endian
@@ -135,15 +135,15 @@ static inline int comp_keys(const struct reiserfs_key *le_key,
 inline int comp_short_le_keys(const struct reiserfs_key *key1,
 			      const struct reiserfs_key *key2)
 {
-	__u32 *p_s_1_u32, *p_s_2_u32;
+	__u32 *k1_u32, *k2_u32;
 	int n_key_length = REISERFS_SHORT_KEY_LEN;
 
-	p_s_1_u32 = (__u32 *) key1;
-	p_s_2_u32 = (__u32 *) key2;
-	for (; n_key_length--; ++p_s_1_u32, ++p_s_2_u32) {
-		if (le32_to_cpu(*p_s_1_u32) < le32_to_cpu(*p_s_2_u32))
+	k1_u32 = (__u32 *) key1;
+	k2_u32 = (__u32 *) key2;
+	for (; n_key_length--; ++k1_u32, ++k2_u32) {
+		if (le32_to_cpu(*k1_u32) < le32_to_cpu(*k2_u32))
 			return -1;
-		if (le32_to_cpu(*p_s_1_u32) > le32_to_cpu(*p_s_2_u32))
+		if (le32_to_cpu(*k1_u32) > le32_to_cpu(*k2_u32))
 			return 1;
 	}
 	return 0;
@@ -174,8 +174,8 @@ inline int comp_le_keys(const struct reiserfs_key *k1,
  *  Binary search toolkit function                                        *
  *  Search for an item in the array by the item key                       *
  *  Returns:    1 if found,  0 if not found;                              *
- *        *p_n_pos = number of the searched element if found, else the    *
- *        number of the first element that is larger than p_v_key.        *
+ *        *pos = number of the searched element if found, else the        *
+ *        number of the first element that is larger than key.            *
  **************************************************************************/
 /* For those not familiar with binary search: n_lbound is the leftmost item that it
  could be, n_rbound the rightmost item that it could be.  We examine the item
@@ -184,28 +184,28 @@ inline int comp_le_keys(const struct reiserfs_key *k1,
  there are no possible items, and we have not found it. With each examination we
  cut the number of possible items it could be by one more than half rounded down,
  or we find it. */
-static inline int bin_search(const void *p_v_key,	/* Key to search for.                   */
-			     const void *p_v_base,	/* First item in the array.             */
-			     int p_n_num,	/* Number of items in the array.        */
-			     int p_n_width,	/* Item size in the array.
-						   searched. Lest the reader be
-						   confused, note that this is crafted
-						   as a general function, and when it
-						   is applied specifically to the array
-						   of item headers in a node, p_n_width
-						   is actually the item header size not
-						   the item size.                      */
-			     int *p_n_pos	/* Number of the searched for element. */
+static inline int bin_search(const void *key,	/* Key to search for. */
+			     const void *base,	/* First item in the array. */
+			     int num,	/* Number of items in the array. */
+			     int width,	/* Item size in the array.
+					   searched. Lest the reader be
+					   confused, note that this is crafted
+					   as a general function, and when it
+					   is applied specifically to the array
+					   of item headers in a node, width
+					   is actually the item header size not
+					   the item size. */
+			     int *pos /* Number of the searched for element. */
     )
 {
 	int n_rbound, n_lbound, n_j;
 
-	for (n_j = ((n_rbound = p_n_num - 1) + (n_lbound = 0)) / 2;
+	for (n_j = ((n_rbound = num - 1) + (n_lbound = 0)) / 2;
 	     n_lbound <= n_rbound; n_j = (n_rbound + n_lbound) / 2)
 		switch (comp_keys
-			((struct reiserfs_key *)((char *)p_v_base +
-						 n_j * p_n_width),
-			 (struct cpu_key *)p_v_key)) {
+			((struct reiserfs_key *)((char *)base +
+						 n_j * width),
+			 (struct cpu_key *)key)) {
 		case -1:
 			n_lbound = n_j + 1;
 			continue;
@@ -213,13 +213,13 @@ static inline int bin_search(const void *p_v_key,	/* Key to search for.
 			n_rbound = n_j - 1;
 			continue;
 		case 0:
-			*p_n_pos = n_j;
+			*pos = n_j;
 			return ITEM_FOUND;	/* Key found in the array.  */
 		}
 
 	/* bin_search did not find given key, it returns position of key,
 	   that is minimal and greater than the given one. */
-	*p_n_pos = n_lbound;
+	*pos = n_lbound;
 	return ITEM_NOT_FOUND;
 }
 
@@ -243,12 +243,12 @@ static const struct reiserfs_key MAX_KEY = {
    the path, there is no delimiting key in the tree (buffer is first or last buffer in tree), and in this
    case we return a special key, either MIN_KEY or MAX_KEY. */
 static inline const struct reiserfs_key *get_lkey(const struct treepath
-						  *p_s_chk_path,
+						  *chk_path,
 						  const struct super_block
 						  *sb)
 {
-	int n_position, n_path_offset = p_s_chk_path->path_length;
-	struct buffer_head *p_s_parent;
+	int n_position, n_path_offset = chk_path->path_length;
+	struct buffer_head *parent;
 
 	RFALSE(n_path_offset < FIRST_PATH_ELEMENT_OFFSET,
 	       "PAP-5010: invalid offset in the path");
@@ -257,42 +257,42 @@ static inline const struct reiserfs_key *get_lkey(const struct treepath
 	while (n_path_offset-- > FIRST_PATH_ELEMENT_OFFSET) {
 
 		RFALSE(!buffer_uptodate
-		       (PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)),
+		       (PATH_OFFSET_PBUFFER(chk_path, n_path_offset)),
 		       "PAP-5020: parent is not uptodate");
 
 		/* Parent at the path is not in the tree now. */
 		if (!B_IS_IN_TREE
-		    (p_s_parent =
-		     PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)))
+		    (parent =
+		     PATH_OFFSET_PBUFFER(chk_path, n_path_offset)))
 			return &MAX_KEY;
 		/* Check whether position in the parent is correct. */
 		if ((n_position =
-		     PATH_OFFSET_POSITION(p_s_chk_path,
+		     PATH_OFFSET_POSITION(chk_path,
 					  n_path_offset)) >
-		    B_NR_ITEMS(p_s_parent))
+		    B_NR_ITEMS(parent))
 			return &MAX_KEY;
 		/* Check whether parent at the path really points to the child. */
-		if (B_N_CHILD_NUM(p_s_parent, n_position) !=
-		    PATH_OFFSET_PBUFFER(p_s_chk_path,
+		if (B_N_CHILD_NUM(parent, n_position) !=
+		    PATH_OFFSET_PBUFFER(chk_path,
 					n_path_offset + 1)->b_blocknr)
 			return &MAX_KEY;
 		/* Return delimiting key if position in the parent is not equal to zero. */
 		if (n_position)
-			return B_N_PDELIM_KEY(p_s_parent, n_position - 1);
+			return B_N_PDELIM_KEY(parent, n_position - 1);
 	}
 	/* Return MIN_KEY if we are in the root of the buffer tree. */
-	if (PATH_OFFSET_PBUFFER(p_s_chk_path, FIRST_PATH_ELEMENT_OFFSET)->
+	if (PATH_OFFSET_PBUFFER(chk_path, FIRST_PATH_ELEMENT_OFFSET)->
 	    b_blocknr == SB_ROOT_BLOCK(sb))
 		return &MIN_KEY;
 	return &MAX_KEY;
 }
 
 /* Get delimiting key of the buffer at the path and its right neighbor. */
-inline const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
+inline const struct reiserfs_key *get_rkey(const struct treepath *chk_path,
 					   const struct super_block *sb)
 {
-	int n_position, n_path_offset = p_s_chk_path->path_length;
-	struct buffer_head *p_s_parent;
+	int n_position, n_path_offset = chk_path->path_length;
+	struct buffer_head *parent;
 
 	RFALSE(n_path_offset < FIRST_PATH_ELEMENT_OFFSET,
 	       "PAP-5030: invalid offset in the path");
@@ -300,31 +300,31 @@ inline const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
 	while (n_path_offset-- > FIRST_PATH_ELEMENT_OFFSET) {
 
 		RFALSE(!buffer_uptodate
-		       (PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)),
+		       (PATH_OFFSET_PBUFFER(chk_path, n_path_offset)),
 		       "PAP-5040: parent is not uptodate");
 
 		/* Parent at the path is not in the tree now. */
 		if (!B_IS_IN_TREE
-		    (p_s_parent =
-		     PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)))
+		    (parent =
+		     PATH_OFFSET_PBUFFER(chk_path, n_path_offset)))
 			return &MIN_KEY;
 		/* Check whether position in the parent is correct. */
 		if ((n_position =
-		     PATH_OFFSET_POSITION(p_s_chk_path,
+		     PATH_OFFSET_POSITION(chk_path,
 					  n_path_offset)) >
-		    B_NR_ITEMS(p_s_parent))
+		    B_NR_ITEMS(parent))
 			return &MIN_KEY;
 		/* Check whether parent at the path really points to the child. */
-		if (B_N_CHILD_NUM(p_s_parent, n_position) !=
-		    PATH_OFFSET_PBUFFER(p_s_chk_path,
+		if (B_N_CHILD_NUM(parent, n_position) !=
+		    PATH_OFFSET_PBUFFER(chk_path,
 					n_path_offset + 1)->b_blocknr)
 			return &MIN_KEY;
 		/* Return delimiting key if position in the parent is not the last one. */
-		if (n_position != B_NR_ITEMS(p_s_parent))
-			return B_N_PDELIM_KEY(p_s_parent, n_position);
+		if (n_position != B_NR_ITEMS(parent))
+			return B_N_PDELIM_KEY(parent, n_position);
 	}
 	/* Return MAX_KEY if we are in the root of the buffer tree. */
-	if (PATH_OFFSET_PBUFFER(p_s_chk_path, FIRST_PATH_ELEMENT_OFFSET)->
+	if (PATH_OFFSET_PBUFFER(chk_path, FIRST_PATH_ELEMENT_OFFSET)->
 	    b_blocknr == SB_ROOT_BLOCK(sb))
 		return &MAX_KEY;
 	return &MIN_KEY;
@@ -335,25 +335,25 @@ inline const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
    the path.  These delimiting keys are stored at least one level above that buffer in the tree. If the
    buffer is the first or last node in the tree order then one of the delimiting keys may be absent, and in
    this case get_lkey and get_rkey return a special key which is MIN_KEY or MAX_KEY. */
-static inline int key_in_buffer(struct treepath *p_s_chk_path,	/* Path which should be checked.  */
-				const struct cpu_key *p_s_key,	/* Key which should be checked.   */
-				struct super_block *sb	/* Super block pointer.	   */
+static inline int key_in_buffer(struct treepath *chk_path,	/* Path which should be checked.  */
+				const struct cpu_key *key,	/* Key which should be checked.   */
+				struct super_block *sb
     )
 {
 
-	RFALSE(!p_s_key || p_s_chk_path->path_length < FIRST_PATH_ELEMENT_OFFSET
-	       || p_s_chk_path->path_length > MAX_HEIGHT,
+	RFALSE(!key || chk_path->path_length < FIRST_PATH_ELEMENT_OFFSET
+	       || chk_path->path_length > MAX_HEIGHT,
 	       "PAP-5050: pointer to the key(%p) is NULL or invalid path length(%d)",
-	       p_s_key, p_s_chk_path->path_length);
-	RFALSE(!PATH_PLAST_BUFFER(p_s_chk_path)->b_bdev,
+	       key, chk_path->path_length);
+	RFALSE(!PATH_PLAST_BUFFER(chk_path)->b_bdev,
 	       "PAP-5060: device must not be NODEV");
 
-	if (comp_keys(get_lkey(p_s_chk_path, sb), p_s_key) == 1)
+	if (comp_keys(get_lkey(chk_path, sb), key) == 1)
 		/* left delimiting key is bigger, that the key we look for */
 		return 0;
-	//  if ( comp_keys(p_s_key, get_rkey(p_s_chk_path, sb)) != -1 )
-	if (comp_keys(get_rkey(p_s_chk_path, sb), p_s_key) != 1)
-		/* p_s_key must be less than right delimitiing key */
+	/*  if ( comp_keys(key, get_rkey(chk_path, sb)) != -1 ) */
+	if (comp_keys(get_rkey(chk_path, sb), key) != 1)
+		/* key must be less than right delimitiing key */
 		return 0;
 	return 1;
 }
@@ -369,34 +369,34 @@ int reiserfs_check_path(struct treepath *p)
  * dirty bits clean when preparing the buffer for the log.
  * This version should only be called from fix_nodes() */
 void pathrelse_and_restore(struct super_block *sb,
-			   struct treepath *p_s_search_path)
+			   struct treepath *search_path)
 {
-	int n_path_offset = p_s_search_path->path_length;
+	int n_path_offset = search_path->path_length;
 
 	RFALSE(n_path_offset < ILLEGAL_PATH_ELEMENT_OFFSET,
 	       "clm-4000: invalid path offset");
 
 	while (n_path_offset > ILLEGAL_PATH_ELEMENT_OFFSET) {
 		struct buffer_head *bh;
-		bh = PATH_OFFSET_PBUFFER(p_s_search_path, n_path_offset--);
+		bh = PATH_OFFSET_PBUFFER(search_path, n_path_offset--);
 		reiserfs_restore_prepared_buffer(sb, bh);
 		brelse(bh);
 	}
-	p_s_search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
+	search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
 }
 
 /* Drop the reference to each buffer in a path */
-void pathrelse(struct treepath *p_s_search_path)
+void pathrelse(struct treepath *search_path)
 {
-	int n_path_offset = p_s_search_path->path_length;
+	int n_path_offset = search_path->path_length;
 
 	RFALSE(n_path_offset < ILLEGAL_PATH_ELEMENT_OFFSET,
 	       "PAP-5090: invalid path offset");
 
 	while (n_path_offset > ILLEGAL_PATH_ELEMENT_OFFSET)
-		brelse(PATH_OFFSET_PBUFFER(p_s_search_path, n_path_offset--));
+		brelse(PATH_OFFSET_PBUFFER(search_path, n_path_offset--));
 
-	p_s_search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
+	search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
 }
 
 static int is_leaf(char *buf, int blocksize, struct buffer_head *bh)
@@ -547,9 +547,9 @@ static void search_by_key_reada(struct super_block *s,
  * Algorithm   SearchByKey                                                *
  *             look for item in the Disk S+Tree by its key                *
  * Input:  sb   -  super block                                            *
- *         p_s_key  - pointer to the key to search                        *
+ *         key  - pointer to the key to search                            *
  * Output: ITEM_FOUND, ITEM_NOT_FOUND or IO_ERROR                         *
- *         p_s_search_path - path from the root to the needed leaf        *
+ *         search_path - path from the root to the needed leaf            *
  **************************************************************************/
 
 /* This function fills up the path from the root to the leaf as it
@@ -566,8 +566,8 @@ static void search_by_key_reada(struct super_block *s,
    correctness of the top of the path but need not be checked for the
    correctness of the bottom of the path */
 /* The function is NOT SCHEDULE-SAFE! */
-int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key to search. */
-		  struct treepath *p_s_search_path,/* This structure was
+int search_by_key(struct super_block *sb, const struct cpu_key *key,	/* Key to search. */
+		  struct treepath *search_path,/* This structure was
 						   allocated and initialized
 						   by the calling
 						   function. It is filled up
@@ -580,7 +580,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 	b_blocknr_t n_block_number;
 	int expected_level;
 	struct buffer_head *bh;
-	struct path_element *p_s_last_element;
+	struct path_element *last_element;
 	int n_node_level, n_retval;
 	int right_neighbor_of_leaf_node;
 	int fs_gen;
@@ -598,7 +598,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 	   we must be careful to release all nodes in a path before we either
 	   discard the path struct or re-use the path struct, as we do here. */
 
-	pathrelse(p_s_search_path);
+	pathrelse(search_path);
 
 	right_neighbor_of_leaf_node = 0;
 
@@ -615,18 +615,18 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 					 "%s: there were %d iterations of "
 					 "while loop looking for key %K",
 					 current->comm, n_repeat_counter,
-					 p_s_key);
+					 key);
 #endif
 
 		/* prep path to have another element added to it. */
-		p_s_last_element =
-		    PATH_OFFSET_PELEMENT(p_s_search_path,
-					 ++p_s_search_path->path_length);
+		last_element =
+		    PATH_OFFSET_PELEMENT(search_path,
+					 ++search_path->path_length);
 		fs_gen = get_generation(sb);
 
 		/* Read the next tree node, and set the last element in the path to
 		   have a pointer to it. */
-		if ((bh = p_s_last_element->pe_buffer =
+		if ((bh = last_element->pe_buffer =
 		     sb_getblk(sb, n_block_number))) {
 			if (!buffer_uptodate(bh) && reada_count > 1)
 				search_by_key_reada(sb, reada_bh,
@@ -637,8 +637,8 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 				goto io_error;
 		} else {
 		      io_error:
-			p_s_search_path->path_length--;
-			pathrelse(p_s_search_path);
+			search_path->path_length--;
+			pathrelse(search_path);
 			return IO_ERROR;
 		}
 		reada_count = 0;
@@ -652,12 +652,12 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 		if (fs_changed(fs_gen, sb) &&
 		    (!B_IS_IN_TREE(bh) ||
 		     B_LEVEL(bh) != expected_level ||
-		     !key_in_buffer(p_s_search_path, p_s_key, sb))) {
+		     !key_in_buffer(search_path, key, sb))) {
 			PROC_INFO_INC(sb, search_by_key_fs_changed);
 			PROC_INFO_INC(sb, search_by_key_restarted);
 			PROC_INFO_INC(sb,
 				      sbk_restarted[expected_level - 1]);
-			pathrelse(p_s_search_path);
+			pathrelse(search_path);
 
 			/* Get the root block number so that we can repeat the search
 			   starting from the root. */
@@ -669,11 +669,11 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 			continue;
 		}
 
-		/* only check that the key is in the buffer if p_s_key is not
+		/* only check that the key is in the buffer if key is not
 		   equal to the MAX_KEY. Latter case is only possible in
 		   "finish_unfinished()" processing during mount. */
-		RFALSE(comp_keys(&MAX_KEY, p_s_key) &&
-		       !key_in_buffer(p_s_search_path, p_s_key, sb),
+		RFALSE(comp_keys(&MAX_KEY, key) &&
+		       !key_in_buffer(search_path, key, sb),
 		       "PAP-5130: key is not in the buffer");
 #ifdef CONFIG_REISERFS_CHECK
 		if (cur_tb) {
@@ -689,7 +689,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 			reiserfs_error(sb, "vs-5150",
 				       "invalid format found in block %ld. "
 				       "Fsck?", bh->b_blocknr);
-			pathrelse(p_s_search_path);
+			pathrelse(search_path);
 			return IO_ERROR;
 		}
 
@@ -702,12 +702,12 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 		       "vs-5152: tree level (%d) is less than stop level (%d)",
 		       n_node_level, n_stop_level);
 
-		n_retval = bin_search(p_s_key, B_N_PITEM_HEAD(bh, 0),
+		n_retval = bin_search(key, B_N_PITEM_HEAD(bh, 0),
 				      B_NR_ITEMS(bh),
 				      (n_node_level ==
 				       DISK_LEAF_NODE_LEVEL) ? IH_SIZE :
 				      KEY_SIZE,
-				      &(p_s_last_element->pe_position));
+				      &(last_element->pe_position));
 		if (n_node_level == n_stop_level) {
 			return n_retval;
 		}
@@ -715,7 +715,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 		/* we are not in the stop level */
 		if (n_retval == ITEM_FOUND)
 			/* item has been found, so we choose the pointer which is to the right of the found one */
-			p_s_last_element->pe_position++;
+			last_element->pe_position++;
 
 		/* if item was not found we choose the position which is to
 		   the left of the found item. This requires no code,
@@ -725,23 +725,23 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 		   an internal node.  Now we calculate child block number by
 		   position in the node. */
 		n_block_number =
-		    B_N_CHILD_NUM(bh, p_s_last_element->pe_position);
+		    B_N_CHILD_NUM(bh, last_element->pe_position);
 
 		/* if we are going to read leaf nodes, try for read ahead as well */
-		if ((p_s_search_path->reada & PATH_READA) &&
+		if ((search_path->reada & PATH_READA) &&
 		    n_node_level == DISK_LEAF_NODE_LEVEL + 1) {
-			int pos = p_s_last_element->pe_position;
+			int pos = last_element->pe_position;
 			int limit = B_NR_ITEMS(bh);
 			struct reiserfs_key *le_key;
 
-			if (p_s_search_path->reada & PATH_READA_BACK)
+			if (search_path->reada & PATH_READA_BACK)
 				limit = 0;
 			while (reada_count < SEARCH_BY_KEY_READA) {
 				if (pos == limit)
 					break;
 				reada_blocks[reada_count++] =
 				    B_N_CHILD_NUM(bh, pos);
-				if (p_s_search_path->reada & PATH_READA_BACK)
+				if (search_path->reada & PATH_READA_BACK)
 					pos--;
 				else
 					pos++;
@@ -751,7 +751,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 				 */
 				le_key = B_N_PDELIM_KEY(bh, pos);
 				if (le32_to_cpu(le_key->k_objectid) !=
-				    p_s_key->on_disk_key.k_objectid) {
+				    key->on_disk_key.k_objectid) {
 					break;
 				}
 			}
@@ -760,11 +760,11 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 }
 
 /* Form the path to an item and position in this item which contains
-   file byte defined by p_s_key. If there is no such item
+   file byte defined by key. If there is no such item
    corresponding to the key, we point the path to the item with
-   maximal key less than p_s_key, and *p_n_pos_in_item is set to one
+   maximal key less than key, and *pos_in_item is set to one
    past the last entry/byte in the item.  If searching for entry in a
-   directory item, and it is not found, *p_n_pos_in_item is set to one
+   directory item, and it is not found, *pos_in_item is set to one
    entry more than the entry with maximal key which is less than the
    sought key.
 
@@ -777,7 +777,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *p_s_key,	/* Key
 /* The function is NOT SCHEDULE-SAFE! */
 int search_for_position_by_key(struct super_block *sb,	/* Pointer to the super block.          */
 			       const struct cpu_key *p_cpu_key,	/* Key to search (cpu variable)         */
-			       struct treepath *p_s_search_path	/* Filled up by this function.          */
+			       struct treepath *search_path	/* Filled up by this function.          */
     )
 {
 	struct item_head *p_le_ih;	/* pointer to on-disk structure */
@@ -788,34 +788,34 @@ int search_for_position_by_key(struct super_block *sb,	/* Pointer to the super b
 
 	/* If searching for directory entry. */
 	if (is_direntry_cpu_key(p_cpu_key))
-		return search_by_entry_key(sb, p_cpu_key, p_s_search_path,
+		return search_by_entry_key(sb, p_cpu_key, search_path,
 					   &de);
 
 	/* If not searching for directory entry. */
 
 	/* If item is found. */
-	retval = search_item(sb, p_cpu_key, p_s_search_path);
+	retval = search_item(sb, p_cpu_key, search_path);
 	if (retval == IO_ERROR)
 		return retval;
 	if (retval == ITEM_FOUND) {
 
 		RFALSE(!ih_item_len
 		       (B_N_PITEM_HEAD
-			(PATH_PLAST_BUFFER(p_s_search_path),
-			 PATH_LAST_POSITION(p_s_search_path))),
+			(PATH_PLAST_BUFFER(search_path),
+			 PATH_LAST_POSITION(search_path))),
 		       "PAP-5165: item length equals zero");
 
-		pos_in_item(p_s_search_path) = 0;
+		pos_in_item(search_path) = 0;
 		return POSITION_FOUND;
 	}
 
-	RFALSE(!PATH_LAST_POSITION(p_s_search_path),
+	RFALSE(!PATH_LAST_POSITION(search_path),
 	       "PAP-5170: position equals zero");
 
 	/* Item is not found. Set path to the previous item. */
 	p_le_ih =
-	    B_N_PITEM_HEAD(PATH_PLAST_BUFFER(p_s_search_path),
-			   --PATH_LAST_POSITION(p_s_search_path));
+	    B_N_PITEM_HEAD(PATH_PLAST_BUFFER(search_path),
+			   --PATH_LAST_POSITION(search_path));
 	n_blk_size = sb->s_blocksize;
 
 	if (comp_short_keys(&(p_le_ih->ih_key), p_cpu_key)) {
@@ -829,9 +829,9 @@ int search_for_position_by_key(struct super_block *sb,	/* Pointer to the super b
 	/* Needed byte is contained in the item pointed to by the path. */
 	if (item_offset <= offset &&
 	    item_offset + op_bytes_number(p_le_ih, n_blk_size) > offset) {
-		pos_in_item(p_s_search_path) = offset - item_offset;
+		pos_in_item(search_path) = offset - item_offset;
 		if (is_indirect_le_ih(p_le_ih)) {
-			pos_in_item(p_s_search_path) /= n_blk_size;
+			pos_in_item(search_path) /= n_blk_size;
 		}
 		return POSITION_FOUND;
 	}
@@ -839,18 +839,18 @@ int search_for_position_by_key(struct super_block *sb,	/* Pointer to the super b
 	/* Needed byte is not contained in the item pointed to by the
 	   path. Set pos_in_item out of the item. */
 	if (is_indirect_le_ih(p_le_ih))
-		pos_in_item(p_s_search_path) =
+		pos_in_item(search_path) =
 		    ih_item_len(p_le_ih) / UNFM_P_SIZE;
 	else
-		pos_in_item(p_s_search_path) = ih_item_len(p_le_ih);
+		pos_in_item(search_path) = ih_item_len(p_le_ih);
 
 	return POSITION_NOT_FOUND;
 }
 
 /* Compare given item and item pointed to by the path. */
-int comp_items(const struct item_head *stored_ih, const struct treepath *p_s_path)
+int comp_items(const struct item_head *stored_ih, const struct treepath *path)
 {
-	struct buffer_head *bh = PATH_PLAST_BUFFER(p_s_path);
+	struct buffer_head *bh = PATH_PLAST_BUFFER(path);
 	struct item_head *ih;
 
 	/* Last buffer at the path is not in the tree. */
@@ -858,11 +858,11 @@ int comp_items(const struct item_head *stored_ih, const struct treepath *p_s_pat
 		return 1;
 
 	/* Last path position is invalid. */
-	if (PATH_LAST_POSITION(p_s_path) >= B_NR_ITEMS(bh))
+	if (PATH_LAST_POSITION(path) >= B_NR_ITEMS(bh))
 		return 1;
 
 	/* we need only to know, whether it is the same item */
-	ih = get_ih(p_s_path);
+	ih = get_ih(path);
 	return memcmp(stored_ih, ih, IH_SIZE);
 }
 
@@ -951,14 +951,14 @@ static inline int prepare_for_direntry_item(struct treepath *path,
     In case of file truncate calculate whether this item must be deleted/truncated or last
     unformatted node of this item will be converted to a direct item.
     This function returns a determination of what balance mode the calling function should employ. */
-static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, struct inode *inode, struct treepath *p_s_path, const struct cpu_key *p_s_item_key, int *p_n_removed,	/* Number of unformatted nodes which were removed
+static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, struct inode *inode, struct treepath *path, const struct cpu_key *item_key, int *removed,	/* Number of unformatted nodes which were removed
 																						   from end of the file. */
-				      int *p_n_cut_size, unsigned long long n_new_file_length	/* MAX_KEY_OFFSET in case of delete. */
+				      int *cut_size, unsigned long long n_new_file_length	/* MAX_KEY_OFFSET in case of delete. */
     )
 {
 	struct super_block *sb = inode->i_sb;
-	struct item_head *p_le_ih = PATH_PITEM_HEAD(p_s_path);
-	struct buffer_head *bh = PATH_PLAST_BUFFER(p_s_path);
+	struct item_head *p_le_ih = PATH_PITEM_HEAD(path);
+	struct buffer_head *bh = PATH_PLAST_BUFFER(path);
 
 	BUG_ON(!th->t_trans_id);
 
@@ -968,20 +968,20 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 		RFALSE(n_new_file_length != max_reiserfs_offset(inode),
 		       "PAP-5210: mode must be M_DELETE");
 
-		*p_n_cut_size = -(IH_SIZE + ih_item_len(p_le_ih));
+		*cut_size = -(IH_SIZE + ih_item_len(p_le_ih));
 		return M_DELETE;
 	}
 
 	/* Directory item. */
 	if (is_direntry_le_ih(p_le_ih))
-		return prepare_for_direntry_item(p_s_path, p_le_ih, inode,
+		return prepare_for_direntry_item(path, p_le_ih, inode,
 						 n_new_file_length,
-						 p_n_cut_size);
+						 cut_size);
 
 	/* Direct item. */
 	if (is_direct_le_ih(p_le_ih))
-		return prepare_for_direct_item(p_s_path, p_le_ih, inode,
-					       n_new_file_length, p_n_cut_size);
+		return prepare_for_direct_item(path, p_le_ih, inode,
+					       n_new_file_length, cut_size);
 
 	/* Case of an indirect item. */
 	{
@@ -1001,9 +1001,9 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 
 	    do {
 		need_re_search = 0;
-		*p_n_cut_size = 0;
-		bh = PATH_PLAST_BUFFER(p_s_path);
-		copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+		*cut_size = 0;
+		bh = PATH_PLAST_BUFFER(path);
+		copy_item_head(&s_ih, PATH_PITEM_HEAD(path));
 		pos = I_UNFM_NUM(&s_ih);
 
 		while (le_ih_k_offset (&s_ih) + (pos - 1) * blk_size > n_new_file_length) {
@@ -1013,10 +1013,9 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 		    /* Each unformatted block deletion may involve one additional
 		     * bitmap block into the transaction, thereby the initial
 		     * journal space reservation might not be enough. */
-		    if (!delete && (*p_n_cut_size) != 0 &&
-			reiserfs_transaction_free_space(th) < JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD) {
+		    if (!delete && (*cut_size) != 0 &&
+			reiserfs_transaction_free_space(th) < JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD)
 			break;
-		    }
 
 		    unfm = (__le32 *)B_I_PITEM(bh, &s_ih) + pos - 1;
 		    block = get_block_num(unfm, 0);
@@ -1030,17 +1029,17 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 
 		    cond_resched();
 
-		    if (item_moved (&s_ih, p_s_path))  {
+		    if (item_moved (&s_ih, path))  {
 			need_re_search = 1;
 			break;
 		    }
 
 		    pos --;
-		    (*p_n_removed) ++;
-		    (*p_n_cut_size) -= UNFM_P_SIZE;
+		    (*removed)++;
+		    (*cut_size) -= UNFM_P_SIZE;
 
 		    if (pos == 0) {
-			(*p_n_cut_size) -= IH_SIZE;
+			(*cut_size) -= IH_SIZE;
 			result = M_DELETE;
 			break;
 		    }
@@ -1050,10 +1049,10 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
 		** buffer */
 		reiserfs_restore_prepared_buffer(sb, bh);
 	    } while (need_re_search &&
-		     search_for_position_by_key(sb, p_s_item_key, p_s_path) == POSITION_FOUND);
-	    pos_in_item(p_s_path) = pos * UNFM_P_SIZE;
+		     search_for_position_by_key(sb, item_key, path) == POSITION_FOUND);
+	    pos_in_item(path) = pos * UNFM_P_SIZE;
 
-	    if (*p_n_cut_size == 0) {
+	    if (*cut_size == 0) {
 		/* Nothing were cut. maybe convert last unformatted node to the
 		 * direct item? */
 		result = M_CONVERT;
@@ -1091,7 +1090,7 @@ static int calc_deleted_bytes_number(struct tree_balance *tb, char c_mode)
 static void init_tb_struct(struct reiserfs_transaction_handle *th,
 			   struct tree_balance *tb,
 			   struct super_block *sb,
-			   struct treepath *p_s_path, int n_size)
+			   struct treepath *path, int n_size)
 {
 
 	BUG_ON(!th->t_trans_id);
@@ -1099,9 +1098,9 @@ static void init_tb_struct(struct reiserfs_transaction_handle *th,
 	memset(tb, '\0', sizeof(struct tree_balance));
 	tb->transaction_handle = th;
 	tb->tb_sb = sb;
-	tb->tb_path = p_s_path;
-	PATH_OFFSET_PBUFFER(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = NULL;
-	PATH_OFFSET_POSITION(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = 0;
+	tb->tb_path = path;
+	PATH_OFFSET_PBUFFER(path, ILLEGAL_PATH_ELEMENT_OFFSET) = NULL;
+	PATH_OFFSET_POSITION(path, ILLEGAL_PATH_ELEMENT_OFFSET) = 0;
 	tb->insert_size[0] = n_size;
 }
 
@@ -1141,13 +1140,17 @@ char head2type(struct item_head *ih)
 }
 #endif
 
-/* Delete object item. */
-int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath *p_s_path,	/* Path to the deleted item. */
-			 const struct cpu_key *p_s_item_key,	/* Key to search for the deleted item.  */
-			 struct inode *inode,	/* inode is here just to update
-						 * i_blocks and quotas */
-			 struct buffer_head *p_s_un_bh)
-{				/* NULL or unformatted node pointer.    */
+/* Delete object item.
+ * th       - active transaction handle
+ * path     - path to the deleted item
+ * item_key - key to search for the deleted item
+ * indode   - used for updating i_blocks and quotas
+ * un_bh    - NULL or unformatted node pointer
+ */
+int reiserfs_delete_item(struct reiserfs_transaction_handle *th,
+			 struct treepath *path, const struct cpu_key *item_key,
+			 struct inode *inode, struct buffer_head *un_bh)
+{
 	struct super_block *sb = inode->i_sb;
 	struct tree_balance s_del_balance;
 	struct item_head s_ih;
@@ -1162,7 +1165,7 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 
 	BUG_ON(!th->t_trans_id);
 
-	init_tb_struct(th, &s_del_balance, sb, p_s_path,
+	init_tb_struct(th, &s_del_balance, sb, path,
 		       0 /*size is unknown */ );
 
 	while (1) {
@@ -1172,14 +1175,14 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 		n_iter++;
 		c_mode =
 #endif
-		    prepare_for_delete_or_cut(th, inode, p_s_path,
-					      p_s_item_key, &n_removed,
+		    prepare_for_delete_or_cut(th, inode, path,
+					      item_key, &n_removed,
 					      &n_del_size,
 					      max_reiserfs_offset(inode));
 
 		RFALSE(c_mode != M_DELETE, "PAP-5320: mode must be M_DELETE");
 
-		copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+		copy_item_head(&s_ih, PATH_PITEM_HEAD(path));
 		s_del_balance.insert_size[0] = n_del_size;
 
 		n_ret_value = fix_nodes(M_DELETE, &s_del_balance, NULL, NULL);
@@ -1190,13 +1193,13 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 
 		// file system changed, repeat search
 		n_ret_value =
-		    search_for_position_by_key(sb, p_s_item_key, p_s_path);
+		    search_for_position_by_key(sb, item_key, path);
 		if (n_ret_value == IO_ERROR)
 			break;
 		if (n_ret_value == FILE_NOT_FOUND) {
 			reiserfs_warning(sb, "vs-5340",
 					 "no items of the file %K found",
-					 p_s_item_key);
+					 item_key);
 			break;
 		}
 	}			/* while (1) */
@@ -1207,7 +1210,7 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 	}
 	// reiserfs_delete_item returns item length when success
 	n_ret_value = calc_deleted_bytes_number(&s_del_balance, M_DELETE);
-	q_ih = get_ih(p_s_path);
+	q_ih = get_ih(path);
 	quota_cut_bytes = ih_item_len(q_ih);
 
 	/* hack so the quota code doesn't have to guess if the file
@@ -1224,7 +1227,7 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 		}
 	}
 
-	if (p_s_un_bh) {
+	if (un_bh) {
 		int off;
 		char *data;
 
@@ -1242,16 +1245,16 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
 		 ** The unformatted node must be dirtied later on.  We can't be
 		 ** sure here if the entire tail has been deleted yet.
 		 **
-		 ** p_s_un_bh is from the page cache (all unformatted nodes are
+		 ** un_bh is from the page cache (all unformatted nodes are
 		 ** from the page cache) and might be a highmem page.  So, we
-		 ** can't use p_s_un_bh->b_data.
+		 ** can't use un_bh->b_data.
 		 ** -clm
 		 */
 
-		data = kmap_atomic(p_s_un_bh->b_page, KM_USER0);
+		data = kmap_atomic(un_bh->b_page, KM_USER0);
 		off = ((le_ih_k_offset(&s_ih) - 1) & (PAGE_CACHE_SIZE - 1));
 		memcpy(data + off,
-		       B_I_PITEM(PATH_PLAST_BUFFER(p_s_path), &s_ih),
+		       B_I_PITEM(PATH_PLAST_BUFFER(path), &s_ih),
 		       n_ret_value);
 		kunmap_atomic(data, KM_USER0);
 	}
@@ -1427,9 +1430,9 @@ static void unmap_buffers(struct page *page, loff_t pos)
 static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th,
 				    struct inode *inode,
 				    struct page *page,
-				    struct treepath *p_s_path,
-				    const struct cpu_key *p_s_item_key,
-				    loff_t n_new_file_size, char *p_c_mode)
+				    struct treepath *path,
+				    const struct cpu_key *item_key,
+				    loff_t n_new_file_size, char *mode)
 {
 	struct super_block *sb = inode->i_sb;
 	int n_block_size = sb->s_blocksize;
@@ -1445,17 +1448,17 @@ static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th,
 	    !tail_has_to_be_packed(inode) ||
 	    !page || (REISERFS_I(inode)->i_flags & i_nopack_mask)) {
 		/* leave tail in an unformatted node */
-		*p_c_mode = M_SKIP_BALANCING;
+		*mode = M_SKIP_BALANCING;
 		cut_bytes =
 		    n_block_size - (n_new_file_size & (n_block_size - 1));
-		pathrelse(p_s_path);
+		pathrelse(path);
 		return cut_bytes;
 	}
-	/* Permorm the conversion to a direct_item. */
-	/* return indirect_to_direct(inode, p_s_path, p_s_item_key,
-				  n_new_file_size, p_c_mode); */
-	return indirect2direct(th, inode, page, p_s_path, p_s_item_key,
-			       n_new_file_size, p_c_mode);
+	/* Perform the conversion to a direct_item. */
+	/* return indirect_to_direct(inode, path, item_key,
+				  n_new_file_size, mode); */
+	return indirect2direct(th, inode, page, path, item_key,
+			       n_new_file_size, mode);
 }
 
 /* we did indirect_to_direct conversion. And we have inserted direct
@@ -1506,8 +1509,8 @@ static void indirect_to_direct_roll_back(struct reiserfs_transaction_handle *th,
 
 /* (Truncate or cut entry) or delete object item. Returns < 0 on failure */
 int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
-			   struct treepath *p_s_path,
-			   struct cpu_key *p_s_item_key,
+			   struct treepath *path,
+			   struct cpu_key *item_key,
 			   struct inode *inode,
 			   struct page *page, loff_t n_new_file_size)
 {
@@ -1528,7 +1531,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 
 	BUG_ON(!th->t_trans_id);
 
-	init_tb_struct(th, &s_cut_balance, inode->i_sb, p_s_path,
+	init_tb_struct(th, &s_cut_balance, inode->i_sb, path,
 		       n_cut_size);
 
 	/* Repeat this loop until we either cut the item without needing
@@ -1540,8 +1543,8 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		   pointers. */
 
 		c_mode =
-		    prepare_for_delete_or_cut(th, inode, p_s_path,
-					      p_s_item_key, &n_removed,
+		    prepare_for_delete_or_cut(th, inode, path,
+					      item_key, &n_removed,
 					      &n_cut_size, n_new_file_size);
 		if (c_mode == M_CONVERT) {
 			/* convert last unformatted node to direct item or leave
@@ -1551,7 +1554,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 
 			n_ret_value =
 			    maybe_indirect_to_direct(th, inode, page,
-						     p_s_path, p_s_item_key,
+						     path, item_key,
 						     n_new_file_size, &c_mode);
 			if (c_mode == M_SKIP_BALANCING)
 				/* tail has been left in the unformatted node */
@@ -1568,26 +1571,26 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 			   inserting the new direct item.  Now we are removing the
 			   last unformatted node pointer. Set key to search for
 			   it. */
-			set_cpu_key_k_type(p_s_item_key, TYPE_INDIRECT);
-			p_s_item_key->key_length = 4;
+			set_cpu_key_k_type(item_key, TYPE_INDIRECT);
+			item_key->key_length = 4;
 			n_new_file_size -=
 			    (n_new_file_size & (sb->s_blocksize - 1));
 			tail_pos = n_new_file_size;
-			set_cpu_key_k_offset(p_s_item_key, n_new_file_size + 1);
+			set_cpu_key_k_offset(item_key, n_new_file_size + 1);
 			if (search_for_position_by_key
-			    (sb, p_s_item_key,
-			     p_s_path) == POSITION_NOT_FOUND) {
-				print_block(PATH_PLAST_BUFFER(p_s_path), 3,
-					    PATH_LAST_POSITION(p_s_path) - 1,
-					    PATH_LAST_POSITION(p_s_path) + 1);
+			    (sb, item_key,
+			     path) == POSITION_NOT_FOUND) {
+				print_block(PATH_PLAST_BUFFER(path), 3,
+					    PATH_LAST_POSITION(path) - 1,
+					    PATH_LAST_POSITION(path) + 1);
 				reiserfs_panic(sb, "PAP-5580", "item to "
 					       "convert does not exist (%K)",
-					       p_s_item_key);
+					       item_key);
 			}
 			continue;
 		}
 		if (n_cut_size == 0) {
-			pathrelse(p_s_path);
+			pathrelse(path);
 			return 0;
 		}
 
@@ -1600,12 +1603,12 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		PROC_INFO_INC(sb, cut_from_item_restarted);
 
 		n_ret_value =
-		    search_for_position_by_key(sb, p_s_item_key, p_s_path);
+		    search_for_position_by_key(sb, item_key, path);
 		if (n_ret_value == POSITION_FOUND)
 			continue;
 
 		reiserfs_warning(sb, "PAP-5610", "item %K not found",
-				 p_s_item_key);
+				 item_key);
 		unfix_nodes(&s_cut_balance);
 		return (n_ret_value == IO_ERROR) ? -EIO : -ENOENT;
 	}			/* while */
@@ -1615,7 +1618,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 		if (n_is_inode_locked) {
 			// FIXME: this seems to be not needed: we are always able
 			// to cut item
-			indirect_to_direct_roll_back(th, inode, p_s_path);
+			indirect_to_direct_roll_back(th, inode, path);
 		}
 		if (n_ret_value == NO_DISK_SPACE)
 			reiserfs_warning(sb, "reiserfs-5092",
@@ -1631,7 +1634,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 	/* Calculate number of bytes that need to be cut from the item. */
 	quota_cut_bytes =
 	    (c_mode ==
-	     M_DELETE) ? ih_item_len(get_ih(p_s_path)) : -s_cut_balance.
+	     M_DELETE) ? ih_item_len(get_ih(path)) : -s_cut_balance.
 	    insert_size[0];
 	if (retval2 == -1)
 		n_ret_value = calc_deleted_bytes_number(&s_cut_balance, c_mode);
@@ -1878,7 +1881,7 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th,
 #ifdef CONFIG_REISERFS_CHECK
 // this makes sure, that we __append__, not overwrite or add holes
 static void check_research_for_paste(struct treepath *path,
-				     const struct cpu_key *p_s_key)
+				     const struct cpu_key *key)
 {
 	struct item_head *found_ih = get_ih(path);
 
@@ -1886,35 +1889,35 @@ static void check_research_for_paste(struct treepath *path,
 		if (le_ih_k_offset(found_ih) +
 		    op_bytes_number(found_ih,
 				    get_last_bh(path)->b_size) !=
-		    cpu_key_k_offset(p_s_key)
+		    cpu_key_k_offset(key)
 		    || op_bytes_number(found_ih,
 				       get_last_bh(path)->b_size) !=
 		    pos_in_item(path))
 			reiserfs_panic(NULL, "PAP-5720", "found direct item "
 				       "%h or position (%d) does not match "
 				       "to key %K", found_ih,
-				       pos_in_item(path), p_s_key);
+				       pos_in_item(path), key);
 	}
 	if (is_indirect_le_ih(found_ih)) {
 		if (le_ih_k_offset(found_ih) +
 		    op_bytes_number(found_ih,
 				    get_last_bh(path)->b_size) !=
-		    cpu_key_k_offset(p_s_key)
+		    cpu_key_k_offset(key)
 		    || I_UNFM_NUM(found_ih) != pos_in_item(path)
 		    || get_ih_free_space(found_ih) != 0)
 			reiserfs_panic(NULL, "PAP-5730", "found indirect "
 				       "item (%h) or position (%d) does not "
 				       "match to key (%K)",
-				       found_ih, pos_in_item(path), p_s_key);
+				       found_ih, pos_in_item(path), key);
 	}
 }
 #endif				/* config reiserfs check */
 
 /* Paste bytes to the existing item. Returns bytes number pasted into the item. */
-int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct treepath *p_s_search_path,	/* Path to the pasted item.          */
-			     const struct cpu_key *p_s_key,	/* Key to search for the needed item. */
+int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct treepath *search_path,	/* Path to the pasted item.	  */
+			     const struct cpu_key *key,	/* Key to search for the needed item. */
 			     struct inode *inode,	/* Inode item belongs to */
-			     const char *p_c_body,	/* Pointer to the bytes to paste.    */
+			     const char *body,	/* Pointer to the bytes to paste.    */
 			     int n_pasted_size)
 {				/* Size of pasted bytes.             */
 	struct tree_balance s_paste_balance;
@@ -1929,17 +1932,17 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
 	reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
 		       "reiserquota paste_into_item(): allocating %u id=%u type=%c",
 		       n_pasted_size, inode->i_uid,
-		       key2type(&(p_s_key->on_disk_key)));
+		       key2type(&(key->on_disk_key)));
 #endif
 
 	if (DQUOT_ALLOC_SPACE_NODIRTY(inode, n_pasted_size)) {
-		pathrelse(p_s_search_path);
+		pathrelse(search_path);
 		return -EDQUOT;
 	}
-	init_tb_struct(th, &s_paste_balance, th->t_super, p_s_search_path,
+	init_tb_struct(th, &s_paste_balance, th->t_super, search_path,
 		       n_pasted_size);
 #ifdef DISPLACE_NEW_PACKING_LOCALITIES
-	s_paste_balance.key = p_s_key->on_disk_key;
+	s_paste_balance.key = key->on_disk_key;
 #endif
 
 	/* DQUOT_* can schedule, must check before the fix_nodes */
@@ -1949,13 +1952,13 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
 
 	while ((retval =
 		fix_nodes(M_PASTE, &s_paste_balance, NULL,
-			  p_c_body)) == REPEAT_SEARCH) {
+			  body)) == REPEAT_SEARCH) {
 	      search_again:
 		/* file system changed while we were in the fix_nodes */
 		PROC_INFO_INC(th->t_super, paste_into_item_restarted);
 		retval =
-		    search_for_position_by_key(th->t_super, p_s_key,
-					       p_s_search_path);
+		    search_for_position_by_key(th->t_super, key,
+					       search_path);
 		if (retval == IO_ERROR) {
 			retval = -EIO;
 			goto error_out;
@@ -1963,19 +1966,19 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
 		if (retval == POSITION_FOUND) {
 			reiserfs_warning(inode->i_sb, "PAP-5710",
 					 "entry or pasted byte (%K) exists",
-					 p_s_key);
+					 key);
 			retval = -EEXIST;
 			goto error_out;
 		}
 #ifdef CONFIG_REISERFS_CHECK
-		check_research_for_paste(p_s_search_path, p_s_key);
+		check_research_for_paste(search_path, key);
 #endif
 	}
 
 	/* Perform balancing after all resources are collected by fix_nodes, and
 	   accessing them will not risk triggering schedule. */
 	if (retval == CARRY_ON) {
-		do_balance(&s_paste_balance, NULL /*ih */ , p_c_body, M_PASTE);
+		do_balance(&s_paste_balance, NULL /*ih */ , body, M_PASTE);
 		return 0;
 	}
 	retval = (retval == NO_DISK_SPACE) ? -ENOSPC : -EIO;
@@ -1986,17 +1989,23 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
 	reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
 		       "reiserquota paste_into_item(): freeing %u id=%u type=%c",
 		       n_pasted_size, inode->i_uid,
-		       key2type(&(p_s_key->on_disk_key)));
+		       key2type(&(key->on_disk_key)));
 #endif
 	DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size);
 	return retval;
 }
 
-/* Insert new item into the buffer at the path. */
-int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath *p_s_path,	/* Path to the inserteded item.         */
-			 const struct cpu_key *key, struct item_head *p_s_ih,	/* Pointer to the item header to insert. */
-			 struct inode *inode, const char *p_c_body)
-{				/* Pointer to the bytes to insert.      */
+/* Insert new item into the buffer at the path.
+ * th   - active transaction handle
+ * path - path to the inserted item
+ * ih   - pointer to the item header to insert
+ * body - pointer to the bytes to insert
+ */
+int reiserfs_insert_item(struct reiserfs_transaction_handle *th,
+			 struct treepath *path, const struct cpu_key *key,
+			 struct item_head *ih, struct inode *inode,
+			 const char *body)
+{
 	struct tree_balance s_ins_balance;
 	int retval;
 	int fs_gen = 0;
@@ -2006,28 +2015,27 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
 
 	if (inode) {		/* Do we count quotas for item? */
 		fs_gen = get_generation(inode->i_sb);
-		quota_bytes = ih_item_len(p_s_ih);
+		quota_bytes = ih_item_len(ih);
 
 		/* hack so the quota code doesn't have to guess if the file has
 		 ** a tail, links are always tails, so there's no guessing needed
 		 */
-		if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(p_s_ih)) {
+		if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(ih))
 			quota_bytes = inode->i_sb->s_blocksize + UNFM_P_SIZE;
-		}
 #ifdef REISERQUOTA_DEBUG
 		reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
 			       "reiserquota insert_item(): allocating %u id=%u type=%c",
-			       quota_bytes, inode->i_uid, head2type(p_s_ih));
+			       quota_bytes, inode->i_uid, head2type(ih));
 #endif
 		/* We can't dirty inode here. It would be immediately written but
 		 * appropriate stat item isn't inserted yet... */
 		if (DQUOT_ALLOC_SPACE_NODIRTY(inode, quota_bytes)) {
-			pathrelse(p_s_path);
+			pathrelse(path);
 			return -EDQUOT;
 		}
 	}
-	init_tb_struct(th, &s_ins_balance, th->t_super, p_s_path,
-		       IH_SIZE + ih_item_len(p_s_ih));
+	init_tb_struct(th, &s_ins_balance, th->t_super, path,
+		       IH_SIZE + ih_item_len(ih));
 #ifdef DISPLACE_NEW_PACKING_LOCALITIES
 	s_ins_balance.key = key->on_disk_key;
 #endif
@@ -2037,12 +2045,12 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
 	}
 
 	while ((retval =
-		fix_nodes(M_INSERT, &s_ins_balance, p_s_ih,
-			  p_c_body)) == REPEAT_SEARCH) {
+		fix_nodes(M_INSERT, &s_ins_balance, ih,
+			  body)) == REPEAT_SEARCH) {
 	      search_again:
 		/* file system changed while we were in the fix_nodes */
 		PROC_INFO_INC(th->t_super, insert_item_restarted);
-		retval = search_item(th->t_super, key, p_s_path);
+		retval = search_item(th->t_super, key, path);
 		if (retval == IO_ERROR) {
 			retval = -EIO;
 			goto error_out;
@@ -2058,7 +2066,7 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
 
 	/* make balancing after all resources will be collected at a time */
 	if (retval == CARRY_ON) {
-		do_balance(&s_ins_balance, p_s_ih, p_c_body, M_INSERT);
+		do_balance(&s_ins_balance, ih, body, M_INSERT);
 		return 0;
 	}
 
@@ -2069,7 +2077,7 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
 #ifdef REISERQUOTA_DEBUG
 	reiserfs_debug(th->t_super, REISERFS_DEBUG_CODE,
 		       "reiserquota insert_item(): freeing %u id=%u type=%c",
-		       quota_bytes, inode->i_uid, head2type(p_s_ih));
+		       quota_bytes, inode->i_uid, head2type(ih));
 #endif
 	if (inode)
 		DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes);
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index 5c5ee0d0d6a8..2b90c0e5697c 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -172,10 +172,12 @@ void reiserfs_unmap_buffer(struct buffer_head *bh)
    inode */
 int indirect2direct(struct reiserfs_transaction_handle *th,
 		    struct inode *inode, struct page *page,
-		    struct treepath *p_s_path,	/* path to the indirect item. */
-		    const struct cpu_key *p_s_item_key,	/* Key to look for unformatted node pointer to be cut. */
+		    struct treepath *path,	/* path to the indirect item. */
+		    const struct cpu_key *item_key,	/* Key to look for
+							 * unformatted node
+							 * pointer to be cut. */
 		    loff_t n_new_file_size,	/* New file size. */
-		    char *p_c_mode)
+		    char *mode)
 {
 	struct super_block *sb = inode->i_sb;
 	struct item_head s_ih;
@@ -189,10 +191,10 @@ int indirect2direct(struct reiserfs_transaction_handle *th,
 
 	REISERFS_SB(sb)->s_indirect2direct++;
 
-	*p_c_mode = M_SKIP_BALANCING;
+	*mode = M_SKIP_BALANCING;
 
 	/* store item head path points to. */
-	copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+	copy_item_head(&s_ih, PATH_PITEM_HEAD(path));
 
 	tail_len = (n_new_file_size & (n_block_size - 1));
 	if (get_inode_sd_version(inode) == STAT_DATA_V2)
@@ -211,14 +213,14 @@ int indirect2direct(struct reiserfs_transaction_handle *th,
 
 	tail = (char *)kmap(page);	/* this can schedule */
 
-	if (path_changed(&s_ih, p_s_path)) {
+	if (path_changed(&s_ih, path)) {
 		/* re-search indirect item */
-		if (search_for_position_by_key(sb, p_s_item_key, p_s_path)
+		if (search_for_position_by_key(sb, item_key, path)
 		    == POSITION_NOT_FOUND)
 			reiserfs_panic(sb, "PAP-5520",
 				       "item to be converted %K does not exist",
-				       p_s_item_key);
-		copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path));
+				       item_key);
+		copy_item_head(&s_ih, PATH_PITEM_HEAD(path));
 #ifdef CONFIG_REISERFS_CHECK
 		pos = le_ih_k_offset(&s_ih) - 1 +
 		    (ih_item_len(&s_ih) / UNFM_P_SIZE -
@@ -240,13 +242,13 @@ int indirect2direct(struct reiserfs_transaction_handle *th,
 	 */
 	tail = tail + (pos & (PAGE_CACHE_SIZE - 1));
 
-	PATH_LAST_POSITION(p_s_path)++;
+	PATH_LAST_POSITION(path)++;
 
-	key = *p_s_item_key;
+	key = *item_key;
 	set_cpu_key_k_type(&key, TYPE_DIRECT);
 	key.key_length = 4;
 	/* Insert tail as new direct item in the tree */
-	if (reiserfs_insert_item(th, p_s_path, &key, &s_ih, inode,
+	if (reiserfs_insert_item(th, path, &key, &s_ih, inode,
 				 tail ? tail : NULL) < 0) {
 		/* No disk memory. So we can not convert last unformatted node
 		   to the direct item.  In this case we used to adjust
@@ -268,7 +270,7 @@ int indirect2direct(struct reiserfs_transaction_handle *th,
 
 	/* We have inserted new direct item and must remove last
 	   unformatted node. */
-	*p_c_mode = M_CUT;
+	*mode = M_CUT;
 
 	/* we store position of first direct item in the in-core inode */
 	/* mark_file_with_tail (inode, pos1 + 1); */
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index b72dc2095478..e711c796e9d1 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -694,9 +694,9 @@ static inline void cpu_key_k_offset_dec(struct cpu_key *key)
 #define is_indirect_cpu_ih(ih) (is_indirect_cpu_key (&((ih)->ih_key)))
 #define is_statdata_cpu_ih(ih) (is_statdata_cpu_key (&((ih)->ih_key)))
 
-#define I_K_KEY_IN_ITEM(p_s_ih, p_s_key, n_blocksize) \
-    ( ! COMP_SHORT_KEYS(p_s_ih, p_s_key) && \
-          I_OFF_BYTE_IN_ITEM(p_s_ih, k_offset (p_s_key), n_blocksize) )
+#define I_K_KEY_IN_ITEM(ih, key, n_blocksize) \
+    (!COMP_SHORT_KEYS(ih, key) && \
+	  I_OFF_BYTE_IN_ITEM(ih, k_offset(key), n_blocksize))
 
 /* maximal length of item */
 #define MAX_ITEM_LEN(block_size) (block_size - BLKH_SIZE - IH_SIZE)
@@ -1196,33 +1196,33 @@ struct treepath {
 struct treepath var = {.path_length = ILLEGAL_PATH_ELEMENT_OFFSET, .reada = 0,}
 
 /* Get path element by path and path position. */
-#define PATH_OFFSET_PELEMENT(p_s_path,n_offset)  ((p_s_path)->path_elements +(n_offset))
+#define PATH_OFFSET_PELEMENT(path, n_offset)  ((path)->path_elements + (n_offset))
 
 /* Get buffer header at the path by path and path position. */
-#define PATH_OFFSET_PBUFFER(p_s_path,n_offset)   (PATH_OFFSET_PELEMENT(p_s_path,n_offset)->pe_buffer)
+#define PATH_OFFSET_PBUFFER(path, n_offset)   (PATH_OFFSET_PELEMENT(path, n_offset)->pe_buffer)
 
 /* Get position in the element at the path by path and path position. */
-#define PATH_OFFSET_POSITION(p_s_path,n_offset) (PATH_OFFSET_PELEMENT(p_s_path,n_offset)->pe_position)
+#define PATH_OFFSET_POSITION(path, n_offset) (PATH_OFFSET_PELEMENT(path, n_offset)->pe_position)
 
-#define PATH_PLAST_BUFFER(p_s_path) (PATH_OFFSET_PBUFFER((p_s_path), (p_s_path)->path_length))
+#define PATH_PLAST_BUFFER(path) (PATH_OFFSET_PBUFFER((path), (path)->path_length))
 				/* you know, to the person who didn't
 				   write this the macro name does not
 				   at first suggest what it does.
 				   Maybe POSITION_FROM_PATH_END? Or
 				   maybe we should just focus on
 				   dumping paths... -Hans */
-#define PATH_LAST_POSITION(p_s_path) (PATH_OFFSET_POSITION((p_s_path), (p_s_path)->path_length))
+#define PATH_LAST_POSITION(path) (PATH_OFFSET_POSITION((path), (path)->path_length))
 
-#define PATH_PITEM_HEAD(p_s_path)    B_N_PITEM_HEAD(PATH_PLAST_BUFFER(p_s_path),PATH_LAST_POSITION(p_s_path))
+#define PATH_PITEM_HEAD(path)    B_N_PITEM_HEAD(PATH_PLAST_BUFFER(path), PATH_LAST_POSITION(path))
 
 /* in do_balance leaf has h == 0 in contrast with path structure,
    where root has level == 0. That is why we need these defines */
-#define PATH_H_PBUFFER(p_s_path, h) PATH_OFFSET_PBUFFER (p_s_path, p_s_path->path_length - (h))	/* tb->S[h] */
+#define PATH_H_PBUFFER(path, h) PATH_OFFSET_PBUFFER (path, path->path_length - (h))	/* tb->S[h] */
 #define PATH_H_PPARENT(path, h) PATH_H_PBUFFER (path, (h) + 1)	/* tb->F[h] or tb->S[0]->b_parent */
 #define PATH_H_POSITION(path, h) PATH_OFFSET_POSITION (path, path->path_length - (h))
 #define PATH_H_B_ITEM_ORDER(path, h) PATH_H_POSITION(path, h + 1)	/* tb->S[h]->b_item_order */
 
-#define PATH_H_PATH_OFFSET(p_s_path, n_h) ((p_s_path)->path_length - (n_h))
+#define PATH_H_PATH_OFFSET(path, n_h) ((path)->path_length - (n_h))
 
 #define get_last_bh(path) PATH_PLAST_BUFFER(path)
 #define get_ih(path) PATH_PITEM_HEAD(path)
@@ -1512,7 +1512,7 @@ extern struct item_operations *item_ops[TYPE_ANY + 1];
 #define COMP_SHORT_KEYS comp_short_keys
 
 /* number of blocks pointed to by the indirect item */
-#define I_UNFM_NUM(p_s_ih)	( ih_item_len(p_s_ih) / UNFM_P_SIZE )
+#define I_UNFM_NUM(ih)	(ih_item_len(ih) / UNFM_P_SIZE)
 
 /* the used space within the unformatted node corresponding to pos within the item pointed to by ih */
 #define I_POS_UNFM_SIZE(ih,pos,size) (((pos) == I_UNFM_NUM(ih) - 1 ) ? (size) - ih_free_space(ih) : (size))
@@ -1793,8 +1793,8 @@ int reiserfs_convert_objectid_map_v1(struct super_block *);
 
 /* stree.c */
 int B_IS_IN_TREE(const struct buffer_head *);
-extern void copy_item_head(struct item_head *p_v_to,
-			   const struct item_head *p_v_from);
+extern void copy_item_head(struct item_head *to,
+			   const struct item_head *from);
 
 // first key is in cpu form, second - le
 extern int comp_short_keys(const struct reiserfs_key *le_key,
@@ -1829,20 +1829,20 @@ static inline void copy_key(struct reiserfs_key *to,
 	memcpy(to, from, KEY_SIZE);
 }
 
-int comp_items(const struct item_head *stored_ih, const struct treepath *p_s_path);
-const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
+int comp_items(const struct item_head *stored_ih, const struct treepath *path);
+const struct reiserfs_key *get_rkey(const struct treepath *chk_path,
 				    const struct super_block *sb);
 int search_by_key(struct super_block *, const struct cpu_key *,
 		  struct treepath *, int);
 #define search_item(s,key,path) search_by_key (s, key, path, DISK_LEAF_NODE_LEVEL)
 int search_for_position_by_key(struct super_block *sb,
-			       const struct cpu_key *p_s_cpu_key,
-			       struct treepath *p_s_search_path);
+			       const struct cpu_key *cpu_key,
+			       struct treepath *search_path);
 extern void decrement_bcount(struct buffer_head *bh);
-void decrement_counters_in_path(struct treepath *p_s_search_path);
-void pathrelse(struct treepath *p_s_search_path);
+void decrement_counters_in_path(struct treepath *search_path);
+void pathrelse(struct treepath *search_path);
 int reiserfs_check_path(struct treepath *p);
-void pathrelse_and_restore(struct super_block *s, struct treepath *p_s_search_path);
+void pathrelse_and_restore(struct super_block *s, struct treepath *search_path);
 
 int reiserfs_insert_item(struct reiserfs_transaction_handle *th,
 			 struct treepath *path,
@@ -1865,7 +1865,7 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
 int reiserfs_delete_item(struct reiserfs_transaction_handle *th,
 			 struct treepath *path,
 			 const struct cpu_key *key,
-			 struct inode *inode, struct buffer_head *p_s_un_bh);
+			 struct inode *inode, struct buffer_head *un_bh);
 
 void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
 				struct inode *inode, struct reiserfs_key *key);
@@ -2005,7 +2005,7 @@ extern const struct address_space_operations reiserfs_address_space_operations;
 /* fix_nodes.c */
 
 int fix_nodes(int n_op_mode, struct tree_balance *tb,
-	      struct item_head *p_s_ins_ih, const void *);
+	      struct item_head *ins_ih, const void *);
 void unfix_nodes(struct tree_balance *);
 
 /* prints.c */
-- 
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