rfkill: rewrite

This patch completely rewrites the rfkill core to address
the following deficiencies:

 * all rfkill drivers need to implement polling where necessary
   rather than having one central implementation

 * updating the rfkill state cannot be done from arbitrary
   contexts, forcing drivers to use schedule_work and requiring
   lots of code

 * rfkill drivers need to keep track of soft/hard blocked
   internally -- the core should do this

 * the rfkill API has many unexpected quirks, for example being
   asymmetric wrt. alloc/free and register/unregister

 * rfkill can call back into a driver from within a function the
   driver called -- this is prone to deadlocks and generally
   should be avoided

 * rfkill-input pointlessly is a separate module

 * drivers need to #ifdef rfkill functions (unless they want to
   depend on or select RFKILL) -- rfkill should provide inlines
   that do nothing if it isn't compiled in

 * the rfkill structure is not opaque -- drivers need to initialise
   it correctly (lots of sanity checking code required) -- instead
   force drivers to pass the right variables to rfkill_alloc()

 * the documentation is hard to read because it always assumes the
   reader is completely clueless and contains way TOO MANY CAPS

 * the rfkill code needlessly uses a lot of locks and atomic
   operations in locked sections

 * fix LED trigger to actually change the LED when the radio state
   changes -- this wasn't done before

Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> [thinkpad]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

7 files changed, 1256 insertions, 1263 deletions

diff --git a/net/rfkill/Kconfig b/net/rfkill/Kconfig
index 7f807b30cfbb..b47f72fae05d 100644
--- a/net/rfkill/Kconfig
+++ b/net/rfkill/Kconfig
@@ -10,22 +10,15 @@ menuconfig RFKILL
 	  To compile this driver as a module, choose M here: the
 	  module will be called rfkill.
 
-config RFKILL_INPUT
-	tristate "Input layer to RF switch connector"
-	depends on RFKILL && INPUT
-	help
-	  Say Y here if you want kernel automatically toggle state
-	  of RF switches on and off when user presses appropriate
-	  button or a key on the keyboard. Without this module you
-	  need a some kind of userspace application to control
-	  state of the switches.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called rfkill-input.
-
 # LED trigger support
 config RFKILL_LEDS
 	bool
-	depends on RFKILL && LEDS_TRIGGERS
+	depends on RFKILL
+	depends on LEDS_TRIGGERS = y || RFKILL = LEDS_TRIGGERS
 	default y
 
+config RFKILL_INPUT
+	bool
+	depends on RFKILL
+	depends on INPUT = y || RFKILL = INPUT
+	default y
diff --git a/net/rfkill/Makefile b/net/rfkill/Makefile
index b38c430be057..662105352691 100644
--- a/net/rfkill/Makefile
+++ b/net/rfkill/Makefile
@@ -2,5 +2,6 @@
 # Makefile for the RF switch subsystem.
 #
 
-obj-$(CONFIG_RFKILL)			+= rfkill.o
-obj-$(CONFIG_RFKILL_INPUT)		+= rfkill-input.o
+rfkill-y			+= core.o
+rfkill-$(CONFIG_RFKILL_INPUT)	+= input.o
+obj-$(CONFIG_RFKILL)		+= rfkill.o
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
new file mode 100644
index 000000000000..30a6f8d819b2
--- /dev/null
+++ b/net/rfkill/core.c
@@ -0,0 +1,896 @@
+/*
+ * Copyright (C) 2006 - 2007 Ivo van Doorn
+ * Copyright (C) 2007 Dmitry Torokhov
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/workqueue.h>
+#include <linux/capability.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/rfkill.h>
+#include <linux/spinlock.h>
+
+#include "rfkill.h"
+
+#define POLL_INTERVAL		(5 * HZ)
+
+#define RFKILL_BLOCK_HW		BIT(0)
+#define RFKILL_BLOCK_SW		BIT(1)
+#define RFKILL_BLOCK_SW_PREV	BIT(2)
+#define RFKILL_BLOCK_ANY	(RFKILL_BLOCK_HW |\
+				 RFKILL_BLOCK_SW |\
+				 RFKILL_BLOCK_SW_PREV)
+#define RFKILL_BLOCK_SW_SETCALL	BIT(31)
+
+struct rfkill {
+	spinlock_t		lock;
+
+	const char		*name;
+	enum rfkill_type	type;
+
+	unsigned long		state;
+
+	bool			registered;
+	bool			suspended;
+
+	const struct rfkill_ops	*ops;
+	void			*data;
+
+#ifdef CONFIG_RFKILL_LEDS
+	struct led_trigger	led_trigger;
+	const char		*ledtrigname;
+#endif
+
+	struct device		dev;
+	struct list_head	node;
+
+	struct delayed_work	poll_work;
+	struct work_struct	uevent_work;
+	struct work_struct	sync_work;
+};
+#define to_rfkill(d)	container_of(d, struct rfkill, dev)
+
+
+
+MODULE_AUTHOR("Ivo van Doorn <IvDoorn@gmail.com>");
+MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
+MODULE_DESCRIPTION("RF switch support");
+MODULE_LICENSE("GPL");
+
+
+/*
+ * The locking here should be made much smarter, we currently have
+ * a bit of a stupid situation because drivers might want to register
+ * the rfkill struct under their own lock, and take this lock during
+ * rfkill method calls -- which will cause an AB-BA deadlock situation.
+ *
+ * To fix that, we need to rework this code here to be mostly lock-free
+ * and only use the mutex for list manipulations, not to protect the
+ * various other global variables. Then we can avoid holding the mutex
+ * around driver operations, and all is happy.
+ */
+static LIST_HEAD(rfkill_list);	/* list of registered rf switches */
+static DEFINE_MUTEX(rfkill_global_mutex);
+
+static unsigned int rfkill_default_state = 1;
+module_param_named(default_state, rfkill_default_state, uint, 0444);
+MODULE_PARM_DESC(default_state,
+		 "Default initial state for all radio types, 0 = radio off");
+
+static struct {
+	bool cur, def;
+} rfkill_global_states[NUM_RFKILL_TYPES];
+
+static unsigned long rfkill_states_default_locked;
+
+static bool rfkill_epo_lock_active;
+
+
+#ifdef CONFIG_RFKILL_LEDS
+static void rfkill_led_trigger_event(struct rfkill *rfkill)
+{
+	struct led_trigger *trigger;
+
+	if (!rfkill->registered)
+		return;
+
+	trigger = &rfkill->led_trigger;
+
+	if (rfkill->state & RFKILL_BLOCK_ANY)
+		led_trigger_event(trigger, LED_OFF);
+	else
+		led_trigger_event(trigger, LED_FULL);
+}
+
+static void rfkill_led_trigger_activate(struct led_classdev *led)
+{
+	struct rfkill *rfkill;
+
+	rfkill = container_of(led->trigger, struct rfkill, led_trigger);
+
+	rfkill_led_trigger_event(rfkill);
+}
+
+const char *rfkill_get_led_trigger_name(struct rfkill *rfkill)
+{
+	return rfkill->led_trigger.name;
+}
+EXPORT_SYMBOL(rfkill_get_led_trigger_name);
+
+void rfkill_set_led_trigger_name(struct rfkill *rfkill, const char *name)
+{
+	BUG_ON(!rfkill);
+
+	rfkill->ledtrigname = name;
+}
+EXPORT_SYMBOL(rfkill_set_led_trigger_name);
+
+static int rfkill_led_trigger_register(struct rfkill *rfkill)
+{
+	rfkill->led_trigger.name = rfkill->ledtrigname
+					? : dev_name(&rfkill->dev);
+	rfkill->led_trigger.activate = rfkill_led_trigger_activate;
+	return led_trigger_register(&rfkill->led_trigger);
+}
+
+static void rfkill_led_trigger_unregister(struct rfkill *rfkill)
+{
+	led_trigger_unregister(&rfkill->led_trigger);
+}
+#else
+static void rfkill_led_trigger_event(struct rfkill *rfkill)
+{
+}
+
+static inline int rfkill_led_trigger_register(struct rfkill *rfkill)
+{
+	return 0;
+}
+
+static inline void rfkill_led_trigger_unregister(struct rfkill *rfkill)
+{
+}
+#endif /* CONFIG_RFKILL_LEDS */
+
+static void rfkill_uevent(struct rfkill *rfkill)
+{
+	if (!rfkill->registered || rfkill->suspended)
+		return;
+
+	kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);
+}
+
+static bool __rfkill_set_hw_state(struct rfkill *rfkill,
+				  bool blocked, bool *change)
+{
+	unsigned long flags;
+	bool prev, any;
+
+	BUG_ON(!rfkill);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	prev = !!(rfkill->state & RFKILL_BLOCK_HW);
+	if (blocked)
+		rfkill->state |= RFKILL_BLOCK_HW;
+	else
+		rfkill->state &= ~RFKILL_BLOCK_HW;
+	*change = prev != blocked;
+	any = rfkill->state & RFKILL_BLOCK_ANY;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	rfkill_led_trigger_event(rfkill);
+
+	return any;
+}
+
+/**
+ * rfkill_set_block - wrapper for set_block method
+ *
+ * @rfkill: the rfkill struct to use
+ * @blocked: the new software state
+ *
+ * Calls the set_block method (when applicable) and handles notifications
+ * etc. as well.
+ */
+static void rfkill_set_block(struct rfkill *rfkill, bool blocked)
+{
+	unsigned long flags;
+	int err;
+
+	/*
+	 * Some platforms (...!) generate input events which affect the
+	 * _hard_ kill state -- whenever something tries to change the
+	 * current software state query the hardware state too.
+	 */
+	if (rfkill->ops->query)
+		rfkill->ops->query(rfkill, rfkill->data);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	if (rfkill->state & RFKILL_BLOCK_SW)
+		rfkill->state |= RFKILL_BLOCK_SW_PREV;
+	else
+		rfkill->state &= ~RFKILL_BLOCK_SW_PREV;
+
+	if (blocked)
+		rfkill->state |= RFKILL_BLOCK_SW;
+	else
+		rfkill->state &= ~RFKILL_BLOCK_SW;
+
+	rfkill->state |= RFKILL_BLOCK_SW_SETCALL;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
+		return;
+
+	err = rfkill->ops->set_block(rfkill->data, blocked);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	if (err) {
+		/*
+		 * Failed -- reset status to _prev, this may be different
+		 * from what set set _PREV to earlier in this function
+		 * if rfkill_set_sw_state was invoked.
+		 */
+		if (rfkill->state & RFKILL_BLOCK_SW_PREV)
+			rfkill->state |= RFKILL_BLOCK_SW;
+		else
+			rfkill->state &= ~RFKILL_BLOCK_SW;
+	}
+	rfkill->state &= ~RFKILL_BLOCK_SW_SETCALL;
+	rfkill->state &= ~RFKILL_BLOCK_SW_PREV;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	rfkill_led_trigger_event(rfkill);
+	rfkill_uevent(rfkill);
+}
+
+/**
+ * __rfkill_switch_all - Toggle state of all switches of given type
+ * @type: type of interfaces to be affected
+ * @state: the new state
+ *
+ * This function sets the state of all switches of given type,
+ * unless a specific switch is claimed by userspace (in which case,
+ * that switch is left alone) or suspended.
+ *
+ * Caller must have acquired rfkill_global_mutex.
+ */
+static void __rfkill_switch_all(const enum rfkill_type type, bool blocked)
+{
+	struct rfkill *rfkill;
+
+	rfkill_global_states[type].cur = blocked;
+	list_for_each_entry(rfkill, &rfkill_list, node) {
+		if (rfkill->type != type)
+			continue;
+
+		rfkill_set_block(rfkill, blocked);
+	}
+}
+
+/**
+ * rfkill_switch_all - Toggle state of all switches of given type
+ * @type: type of interfaces to be affected
+ * @state: the new state
+ *
+ * Acquires rfkill_global_mutex and calls __rfkill_switch_all(@type, @state).
+ * Please refer to __rfkill_switch_all() for details.
+ *
+ * Does nothing if the EPO lock is active.
+ */
+void rfkill_switch_all(enum rfkill_type type, bool blocked)
+{
+	mutex_lock(&rfkill_global_mutex);
+
+	if (!rfkill_epo_lock_active)
+		__rfkill_switch_all(type, blocked);
+
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_epo - emergency power off all transmitters
+ *
+ * This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
+ * ignoring everything in its path but rfkill_global_mutex and rfkill->mutex.
+ *
+ * The global state before the EPO is saved and can be restored later
+ * using rfkill_restore_states().
+ */
+void rfkill_epo(void)
+{
+	struct rfkill *rfkill;
+	int i;
+
+	mutex_lock(&rfkill_global_mutex);
+
+	rfkill_epo_lock_active = true;
+	list_for_each_entry(rfkill, &rfkill_list, node)
+		rfkill_set_block(rfkill, true);
+
+	for (i = 0; i < NUM_RFKILL_TYPES; i++) {
+		rfkill_global_states[i].def = rfkill_global_states[i].cur;
+		rfkill_global_states[i].cur = true;
+	}
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_restore_states - restore global states
+ *
+ * Restore (and sync switches to) the global state from the
+ * states in rfkill_default_states.  This can undo the effects of
+ * a call to rfkill_epo().
+ */
+void rfkill_restore_states(void)
+{
+	int i;
+
+	mutex_lock(&rfkill_global_mutex);
+
+	rfkill_epo_lock_active = false;
+	for (i = 0; i < NUM_RFKILL_TYPES; i++)
+		__rfkill_switch_all(i, rfkill_global_states[i].def);
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_remove_epo_lock - unlock state changes
+ *
+ * Used by rfkill-input manually unlock state changes, when
+ * the EPO switch is deactivated.
+ */
+void rfkill_remove_epo_lock(void)
+{
+	mutex_lock(&rfkill_global_mutex);
+	rfkill_epo_lock_active = false;
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+/**
+ * rfkill_is_epo_lock_active - returns true EPO is active
+ *
+ * Returns 0 (false) if there is NOT an active EPO contidion,
+ * and 1 (true) if there is an active EPO contition, which
+ * locks all radios in one of the BLOCKED states.
+ *
+ * Can be called in atomic context.
+ */
+bool rfkill_is_epo_lock_active(void)
+{
+	return rfkill_epo_lock_active;
+}
+
+/**
+ * rfkill_get_global_sw_state - returns global state for a type
+ * @type: the type to get the global state of
+ *
+ * Returns the current global state for a given wireless
+ * device type.
+ */
+bool rfkill_get_global_sw_state(const enum rfkill_type type)
+{
+	return rfkill_global_states[type].cur;
+}
+
+void rfkill_set_global_sw_state(const enum rfkill_type type, bool blocked)
+{
+	mutex_lock(&rfkill_global_mutex);
+
+	/* don't allow unblock when epo */
+	if (rfkill_epo_lock_active && !blocked)
+		goto out;
+
+	/* too late */
+	if (rfkill_states_default_locked & BIT(type))
+		goto out;
+
+	rfkill_states_default_locked |= BIT(type);
+
+	rfkill_global_states[type].cur = blocked;
+	rfkill_global_states[type].def = blocked;
+ out:
+	mutex_unlock(&rfkill_global_mutex);
+}
+EXPORT_SYMBOL(rfkill_set_global_sw_state);
+
+
+bool rfkill_set_hw_state(struct rfkill *rfkill, bool blocked)
+{
+	bool ret, change;
+
+	ret = __rfkill_set_hw_state(rfkill, blocked, &change);
+
+	if (!rfkill->registered)
+		return ret;
+
+	if (change)
+		schedule_work(&rfkill->uevent_work);
+
+	return ret;
+}
+EXPORT_SYMBOL(rfkill_set_hw_state);
+
+static void __rfkill_set_sw_state(struct rfkill *rfkill, bool blocked)
+{
+	u32 bit = RFKILL_BLOCK_SW;
+
+	/* if in a ops->set_block right now, use other bit */
+	if (rfkill->state & RFKILL_BLOCK_SW_SETCALL)
+		bit = RFKILL_BLOCK_SW_PREV;
+
+	if (blocked)
+		rfkill->state |= bit;
+	else
+		rfkill->state &= ~bit;
+}
+
+bool rfkill_set_sw_state(struct rfkill *rfkill, bool blocked)
+{
+	unsigned long flags;
+	bool prev, hwblock;
+
+	BUG_ON(!rfkill);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	prev = !!(rfkill->state & RFKILL_BLOCK_SW);
+	__rfkill_set_sw_state(rfkill, blocked);
+	hwblock = !!(rfkill->state & RFKILL_BLOCK_HW);
+	blocked = blocked || hwblock;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	if (!rfkill->registered)
+		return blocked;
+
+	if (prev != blocked && !hwblock)
+		schedule_work(&rfkill->uevent_work);
+
+	rfkill_led_trigger_event(rfkill);
+
+	return blocked;
+}
+EXPORT_SYMBOL(rfkill_set_sw_state);
+
+void rfkill_set_states(struct rfkill *rfkill, bool sw, bool hw)
+{
+	unsigned long flags;
+	bool swprev, hwprev;
+
+	BUG_ON(!rfkill);
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+
+	/*
+	 * No need to care about prev/setblock ... this is for uevent only
+	 * and that will get triggered by rfkill_set_block anyway.
+	 */
+	swprev = !!(rfkill->state & RFKILL_BLOCK_SW);
+	hwprev = !!(rfkill->state & RFKILL_BLOCK_HW);
+	__rfkill_set_sw_state(rfkill, sw);
+
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	if (!rfkill->registered)
+		return;
+
+	if (swprev != sw || hwprev != hw)
+		schedule_work(&rfkill->uevent_work);
+
+	rfkill_led_trigger_event(rfkill);
+}
+EXPORT_SYMBOL(rfkill_set_states);
+
+static ssize_t rfkill_name_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	return sprintf(buf, "%s\n", rfkill->name);
+}
+
+static const char *rfkill_get_type_str(enum rfkill_type type)
+{
+	switch (type) {
+	case RFKILL_TYPE_WLAN:
+		return "wlan";
+	case RFKILL_TYPE_BLUETOOTH:
+		return "bluetooth";
+	case RFKILL_TYPE_UWB:
+		return "ultrawideband";
+	case RFKILL_TYPE_WIMAX:
+		return "wimax";
+	case RFKILL_TYPE_WWAN:
+		return "wwan";
+	default:
+		BUG();
+	}
+
+	BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_WWAN + 1);
+}
+
+static ssize_t rfkill_type_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
+}
+
+static u8 user_state_from_blocked(unsigned long state)
+{
+	if (state & RFKILL_BLOCK_HW)
+		return RFKILL_USER_STATE_HARD_BLOCKED;
+	if (state & RFKILL_BLOCK_SW)
+		return RFKILL_USER_STATE_SOFT_BLOCKED;
+
+	return RFKILL_USER_STATE_UNBLOCKED;
+}
+
+static ssize_t rfkill_state_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buf)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+	unsigned long flags;
+	u32 state;
+
+	spin_lock_irqsave(&rfkill->lock, flags);
+	state = rfkill->state;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+
+	return sprintf(buf, "%d\n", user_state_from_blocked(state));
+}
+
+static ssize_t rfkill_state_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	/*
+	 * The intention was that userspace can only take control over
+	 * a given device when/if rfkill-input doesn't control it due
+	 * to user_claim. Since user_claim is currently unsupported,
+	 * we never support changing the state from userspace -- this
+	 * can be implemented again later.
+	 */
+
+	return -EPERM;
+}
+
+static ssize_t rfkill_claim_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buf)
+{
+	return sprintf(buf, "%d\n", 0);
+}
+
+static ssize_t rfkill_claim_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	return -EOPNOTSUPP;
+}
+
+static struct device_attribute rfkill_dev_attrs[] = {
+	__ATTR(name, S_IRUGO, rfkill_name_show, NULL),
+	__ATTR(type, S_IRUGO, rfkill_type_show, NULL),
+	__ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
+	__ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
+	__ATTR_NULL
+};
+
+static void rfkill_release(struct device *dev)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	kfree(rfkill);
+}
+
+static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+	unsigned long flags;
+	u32 state;
+	int error;
+
+	error = add_uevent_var(env, "RFKILL_NAME=%s", rfkill->name);
+	if (error)
+		return error;
+	error = add_uevent_var(env, "RFKILL_TYPE=%s",
+			       rfkill_get_type_str(rfkill->type));
+	if (error)
+		return error;
+	spin_lock_irqsave(&rfkill->lock, flags);
+	state = rfkill->state;
+	spin_unlock_irqrestore(&rfkill->lock, flags);
+	error = add_uevent_var(env, "RFKILL_STATE=%d",
+			       user_state_from_blocked(state));
+	return error;
+}
+
+void rfkill_pause_polling(struct rfkill *rfkill)
+{
+	BUG_ON(!rfkill);
+
+	if (!rfkill->ops->poll)
+		return;
+
+	cancel_delayed_work_sync(&rfkill->poll_work);
+}
+EXPORT_SYMBOL(rfkill_pause_polling);
+
+void rfkill_resume_polling(struct rfkill *rfkill)
+{
+	BUG_ON(!rfkill);
+
+	if (!rfkill->ops->poll)
+		return;
+
+	schedule_work(&rfkill->poll_work.work);
+}
+EXPORT_SYMBOL(rfkill_resume_polling);
+
+static int rfkill_suspend(struct device *dev, pm_message_t state)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+
+	rfkill_pause_polling(rfkill);
+
+	rfkill->suspended = true;
+
+	return 0;
+}
+
+static int rfkill_resume(struct device *dev)
+{
+	struct rfkill *rfkill = to_rfkill(dev);
+	bool cur;
+
+	mutex_lock(&rfkill_global_mutex);
+	cur = rfkill_global_states[rfkill->type].cur;
+	rfkill_set_block(rfkill, cur);
+	mutex_unlock(&rfkill_global_mutex);
+
+	rfkill->suspended = false;
+
+	schedule_work(&rfkill->uevent_work);
+
+	rfkill_resume_polling(rfkill);
+
+	return 0;
+}
+
+static struct class rfkill_class = {
+	.name		= "rfkill",
+	.dev_release	= rfkill_release,
+	.dev_attrs	= rfkill_dev_attrs,
+	.dev_uevent	= rfkill_dev_uevent,
+	.suspend	= rfkill_suspend,
+	.resume		= rfkill_resume,
+};
+
+
+struct rfkill * __must_check rfkill_alloc(const char *name,
+					  struct device *parent,
+					  const enum rfkill_type type,
+					  const struct rfkill_ops *ops,
+					  void *ops_data)
+{
+	struct rfkill *rfkill;
+	struct device *dev;
+
+	if (WARN_ON(!ops))
+		return NULL;
+
+	if (WARN_ON(!ops->set_block))
+		return NULL;
+
+	if (WARN_ON(!name))
+		return NULL;
+
+	if (WARN_ON(type >= NUM_RFKILL_TYPES))
+		return NULL;
+
+	rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
+	if (!rfkill)
+		return NULL;
+
+	spin_lock_init(&rfkill->lock);
+	INIT_LIST_HEAD(&rfkill->node);
+	rfkill->type = type;
+	rfkill->name = name;
+	rfkill->ops = ops;
+	rfkill->data = ops_data;
+
+	dev = &rfkill->dev;
+	dev->class = &rfkill_class;
+	dev->parent = parent;
+	device_initialize(dev);
+
+	return rfkill;
+}
+EXPORT_SYMBOL(rfkill_alloc);
+
+static void rfkill_poll(struct work_struct *work)
+{
+	struct rfkill *rfkill;
+
+	rfkill = container_of(work, struct rfkill, poll_work.work);
+
+	/*
+	 * Poll hardware state -- driver will use one of the
+	 * rfkill_set{,_hw,_sw}_state functions and use its
+	 * return value to update the current status.
+	 */
+	rfkill->ops->poll(rfkill, rfkill->data);
+
+	schedule_delayed_work(&rfkill->poll_work,
+		round_jiffies_relative(POLL_INTERVAL));
+}
+
+static void rfkill_uevent_work(struct work_struct *work)
+{
+	struct rfkill *rfkill;
+
+	rfkill = container_of(work, struct rfkill, uevent_work);
+
+	rfkill_uevent(rfkill);
+}
+
+static void rfkill_sync_work(struct work_struct *work)
+{
+	struct rfkill *rfkill;
+	bool cur;
+
+	rfkill = container_of(work, struct rfkill, sync_work);
+
+	mutex_lock(&rfkill_global_mutex);
+	cur = rfkill_global_states[rfkill->type].cur;
+	rfkill_set_block(rfkill, cur);
+	mutex_unlock(&rfkill_global_mutex);
+}
+
+int __must_check rfkill_register(struct rfkill *rfkill)
+{
+	static unsigned long rfkill_no;
+	struct device *dev = &rfkill->dev;
+	int error;
+
+	BUG_ON(!rfkill);
+
+	mutex_lock(&rfkill_global_mutex);
+
+	if (rfkill->registered) {
+		error = -EALREADY;
+		goto unlock;
+	}
+
+	dev_set_name(dev, "rfkill%lu", rfkill_no);
+	rfkill_no++;
+
+	if (!(rfkill_states_default_locked & BIT(rfkill->type))) {
+		/* first of its kind */
+		BUILD_BUG_ON(NUM_RFKILL_TYPES >
+			sizeof(rfkill_states_default_locked) * 8);
+		rfkill_states_default_locked |= BIT(rfkill->type);
+		rfkill_global_states[rfkill->type].cur =
+			rfkill_global_states[rfkill->type].def;
+	}
+
+	list_add_tail(&rfkill->node, &rfkill_list);
+
+	error = device_add(dev);
+	if (error)
+		goto remove;
+
+	error = rfkill_led_trigger_register(rfkill);
+	if (error)
+		goto devdel;
+
+	rfkill->registered = true;
+
+	if (rfkill->ops->poll) {
+		INIT_DELAYED_WORK(&rfkill->poll_work, rfkill_poll);
+		schedule_delayed_work(&rfkill->poll_work,
+			round_jiffies_relative(POLL_INTERVAL));
+	}
+
+	INIT_WORK(&rfkill->uevent_work, rfkill_uevent_work);
+
+	INIT_WORK(&rfkill->sync_work, rfkill_sync_work);
+	schedule_work(&rfkill->sync_work);
+
+	mutex_unlock(&rfkill_global_mutex);
+	return 0;
+
+ devdel:
+	device_del(&rfkill->dev);
+ remove:
+	list_del_init(&rfkill->node);
+ unlock:
+	mutex_unlock(&rfkill_global_mutex);
+	return error;
+}
+EXPORT_SYMBOL(rfkill_register);
+
+void rfkill_unregister(struct rfkill *rfkill)
+{
+	BUG_ON(!rfkill);
+
+	if (rfkill->ops->poll)
+		cancel_delayed_work_sync(&rfkill->poll_work);
+
+	cancel_work_sync(&rfkill->uevent_work);
+	cancel_work_sync(&rfkill->sync_work);
+
+	rfkill->registered = false;
+
+	device_del(&rfkill->dev);
+
+	mutex_lock(&rfkill_global_mutex);
+	list_del_init(&rfkill->node);
+	mutex_unlock(&rfkill_global_mutex);
+
+	rfkill_led_trigger_unregister(rfkill);
+}
+EXPORT_SYMBOL(rfkill_unregister);
+
+void rfkill_destroy(struct rfkill *rfkill)
+{
+	if (rfkill)
+		put_device(&rfkill->dev);
+}
+EXPORT_SYMBOL(rfkill_destroy);
+
+
+static int __init rfkill_init(void)
+{
+	int error;
+	int i;
+
+	for (i = 0; i < NUM_RFKILL_TYPES; i++)
+		rfkill_global_states[i].def = !rfkill_default_state;
+
+	error = class_register(&rfkill_class);
+	if (error)
+		goto out;
+
+#ifdef CONFIG_RFKILL_INPUT
+	error = rfkill_handler_init();
+	if (error)
+		class_unregister(&rfkill_class);
+#endif
+
+ out:
+	return error;
+}
+subsys_initcall(rfkill_init);
+
+static void __exit rfkill_exit(void)
+{
+#ifdef CONFIG_RFKILL_INPUT
+	rfkill_handler_exit();
+#endif
+	class_unregister(&rfkill_class);
+}
+module_exit(rfkill_exit);
diff --git a/net/rfkill/input.c b/net/rfkill/input.c
new file mode 100644
index 000000000000..a7295ad5f9cb
--- /dev/null
+++ b/net/rfkill/input.c
@@ -0,0 +1,342 @@
+/*
+ * Input layer to RF Kill interface connector
+ *
+ * Copyright (c) 2007 Dmitry Torokhov
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.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.
+ *
+ * If you ever run into a situation in which you have a SW_ type rfkill
+ * input device, then you can revive code that was removed in the patch
+ * "rfkill-input: remove unused code".
+ */
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/init.h>
+#include <linux/rfkill.h>
+#include <linux/sched.h>
+
+#include "rfkill.h"
+
+enum rfkill_input_master_mode {
+	RFKILL_INPUT_MASTER_UNLOCK = 0,
+	RFKILL_INPUT_MASTER_RESTORE = 1,
+	RFKILL_INPUT_MASTER_UNBLOCKALL = 2,
+	NUM_RFKILL_INPUT_MASTER_MODES
+};
+
+/* Delay (in ms) between consecutive switch ops */
+#define RFKILL_OPS_DELAY 200
+
+static enum rfkill_input_master_mode rfkill_master_switch_mode =
+					RFKILL_INPUT_MASTER_UNBLOCKALL;
+module_param_named(master_switch_mode, rfkill_master_switch_mode, uint, 0);
+MODULE_PARM_DESC(master_switch_mode,
+	"SW_RFKILL_ALL ON should: 0=do nothing (only unlock); 1=restore; 2=unblock all");
+
+static spinlock_t rfkill_op_lock;
+static bool rfkill_op_pending;
+static unsigned long rfkill_sw_pending[BITS_TO_LONGS(NUM_RFKILL_TYPES)];
+static unsigned long rfkill_sw_state[BITS_TO_LONGS(NUM_RFKILL_TYPES)];
+
+enum rfkill_sched_op {
+	RFKILL_GLOBAL_OP_EPO = 0,
+	RFKILL_GLOBAL_OP_RESTORE,
+	RFKILL_GLOBAL_OP_UNLOCK,
+	RFKILL_GLOBAL_OP_UNBLOCK,
+};
+
+static enum rfkill_sched_op rfkill_master_switch_op;
+static enum rfkill_sched_op rfkill_op;
+
+static void __rfkill_handle_global_op(enum rfkill_sched_op op)
+{
+	unsigned int i;
+
+	switch (op) {
+	case RFKILL_GLOBAL_OP_EPO:
+		rfkill_epo();
+		break;
+	case RFKILL_GLOBAL_OP_RESTORE:
+		rfkill_restore_states();
+		break;
+	case RFKILL_GLOBAL_OP_UNLOCK:
+		rfkill_remove_epo_lock();
+		break;
+	case RFKILL_GLOBAL_OP_UNBLOCK:
+		rfkill_remove_epo_lock();
+		for (i = 0; i < NUM_RFKILL_TYPES; i++)
+			rfkill_switch_all(i, false);
+		break;
+	default:
+		/* memory corruption or bug, fail safely */
+		rfkill_epo();
+		WARN(1, "Unknown requested operation %d! "
+			"rfkill Emergency Power Off activated\n",
+			op);
+	}
+}
+
+static void __rfkill_handle_normal_op(const enum rfkill_type type,
+				      const bool complement)
+{
+	bool blocked;
+
+	blocked = rfkill_get_global_sw_state(type);
+	if (complement)
+		blocked = !blocked;
+
+	rfkill_switch_all(type, blocked);
+}
+
+static void rfkill_op_handler(struct work_struct *work)
+{
+	unsigned int i;
+	bool c;
+
+	spin_lock_irq(&rfkill_op_lock);
+	do {
+		if (rfkill_op_pending) {
+			enum rfkill_sched_op op = rfkill_op;
+			rfkill_op_pending = false;
+			memset(rfkill_sw_pending, 0,
+				sizeof(rfkill_sw_pending));
+			spin_unlock_irq(&rfkill_op_lock);
+
+			__rfkill_handle_global_op(op);
+
+			spin_lock_irq(&rfkill_op_lock);
+
+			/*
+			 * handle global ops first -- during unlocked period
+			 * we might have gotten a new global op.
+			 */
+			if (rfkill_op_pending)
+				continue;
+		}
+
+		if (rfkill_is_epo_lock_active())
+			continue;
+
+		for (i = 0; i < NUM_RFKILL_TYPES; i++) {
+			if (__test_and_clear_bit(i, rfkill_sw_pending)) {
+				c = __test_and_clear_bit(i, rfkill_sw_state);
+				spin_unlock_irq(&rfkill_op_lock);
+
+				__rfkill_handle_normal_op(i, c);
+
+				spin_lock_irq(&rfkill_op_lock);
+			}
+		}
+	} while (rfkill_op_pending);
+	spin_unlock_irq(&rfkill_op_lock);
+}
+
+static DECLARE_DELAYED_WORK(rfkill_op_work, rfkill_op_handler);
+static unsigned long rfkill_last_scheduled;
+
+static unsigned long rfkill_ratelimit(const unsigned long last)
+{
+	const unsigned long delay = msecs_to_jiffies(RFKILL_OPS_DELAY);
+	return (time_after(jiffies, last + delay)) ? 0 : delay;
+}
+
+static void rfkill_schedule_ratelimited(void)
+{
+	if (delayed_work_pending(&rfkill_op_work))
+		return;
+	schedule_delayed_work(&rfkill_op_work,
+			      rfkill_ratelimit(rfkill_last_scheduled));
+	rfkill_last_scheduled = jiffies;
+}
+
+static void rfkill_schedule_global_op(enum rfkill_sched_op op)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&rfkill_op_lock, flags);
+	rfkill_op = op;
+	rfkill_op_pending = true;
+	if (op == RFKILL_GLOBAL_OP_EPO && !rfkill_is_epo_lock_active()) {
+		/* bypass the limiter for EPO */
+		cancel_delayed_work(&rfkill_op_work);
+		schedule_delayed_work(&rfkill_op_work, 0);
+		rfkill_last_scheduled = jiffies;
+	} else
+		rfkill_schedule_ratelimited();
+	spin_unlock_irqrestore(&rfkill_op_lock, flags);
+}
+
+static void rfkill_schedule_toggle(enum rfkill_type type)
+{
+	unsigned long flags;
+
+	if (rfkill_is_epo_lock_active())
+		return;
+
+	spin_lock_irqsave(&rfkill_op_lock, flags);
+	if (!rfkill_op_pending) {
+		__set_bit(type, rfkill_sw_pending);
+		__change_bit(type, rfkill_sw_state);
+		rfkill_schedule_ratelimited();
+	}
+	spin_unlock_irqrestore(&rfkill_op_lock, flags);
+}
+
+static void rfkill_schedule_evsw_rfkillall(int state)
+{
+	if (state)
+		rfkill_schedule_global_op(rfkill_master_switch_op);
+	else
+		rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
+}
+
+static void rfkill_event(struct input_handle *handle, unsigned int type,
+			unsigned int code, int data)
+{
+	if (type == EV_KEY && data == 1) {
+		switch (code) {
+		case KEY_WLAN:
+			rfkill_schedule_toggle(RFKILL_TYPE_WLAN);
+			break;
+		case KEY_BLUETOOTH:
+			rfkill_schedule_toggle(RFKILL_TYPE_BLUETOOTH);
+			break;
+		case KEY_UWB:
+			rfkill_schedule_toggle(RFKILL_TYPE_UWB);
+			break;
+		case KEY_WIMAX:
+			rfkill_schedule_toggle(RFKILL_TYPE_WIMAX);
+			break;
+		}
+	} else if (type == EV_SW && code == SW_RFKILL_ALL)
+		rfkill_schedule_evsw_rfkillall(data);
+}
+
+static int rfkill_connect(struct input_handler *handler, struct input_dev *dev,
+			  const struct input_device_id *id)
+{
+	struct input_handle *handle;
+	int error;
+
+	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
+	if (!handle)
+		return -ENOMEM;
+
+	handle->dev = dev;
+	handle->handler = handler;
+	handle->name = "rfkill";
+
+	/* causes rfkill_start() to be called */
+	error = input_register_handle(handle);
+	if (error)
+		goto err_free_handle;
+
+	error = input_open_device(handle);
+	if (error)
+		goto err_unregister_handle;
+
+	return 0;
+
+ err_unregister_handle:
+	input_unregister_handle(handle);
+ err_free_handle:
+	kfree(handle);
+	return error;
+}
+
+static void rfkill_start(struct input_handle *handle)
+{
+	/*
+	 * Take event_lock to guard against configuration changes, we
+	 * should be able to deal with concurrency with rfkill_event()
+	 * just fine (which event_lock will also avoid).
+	 */
+	spin_lock_irq(&handle->dev->event_lock);
+
+	if (test_bit(EV_SW, handle->dev->evbit) &&
+	    test_bit(SW_RFKILL_ALL, handle->dev->swbit))
+		rfkill_schedule_evsw_rfkillall(test_bit(SW_RFKILL_ALL,
+							handle->dev->sw));
+
+	spin_unlock_irq(&handle->dev->event_lock);
+}
+
+static void rfkill_disconnect(struct input_handle *handle)
+{
+	input_close_device(handle);
+	input_unregister_handle(handle);
+	kfree(handle);
+}
+
+static const struct input_device_id rfkill_ids[] = {
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_WLAN)] = BIT_MASK(KEY_WLAN) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_BLUETOOTH)] = BIT_MASK(KEY_BLUETOOTH) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_UWB)] = BIT_MASK(KEY_UWB) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT,
+		.evbit = { BIT(EV_SW) },
+		.swbit = { [BIT_WORD(SW_RFKILL_ALL)] = BIT_MASK(SW_RFKILL_ALL) },
+	},
+	{ }
+};
+
+static struct input_handler rfkill_handler = {
+	.name =	"rfkill",
+	.event = rfkill_event,
+	.connect = rfkill_connect,
+	.start = rfkill_start,
+	.disconnect = rfkill_disconnect,
+	.id_table = rfkill_ids,
+};
+
+int __init rfkill_handler_init(void)
+{
+	switch (rfkill_master_switch_mode) {
+	case RFKILL_INPUT_MASTER_UNBLOCKALL:
+		rfkill_master_switch_op = RFKILL_GLOBAL_OP_UNBLOCK;
+		break;
+	case RFKILL_INPUT_MASTER_RESTORE:
+		rfkill_master_switch_op = RFKILL_GLOBAL_OP_RESTORE;
+		break;
+	case RFKILL_INPUT_MASTER_UNLOCK:
+		rfkill_master_switch_op = RFKILL_GLOBAL_OP_UNLOCK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	spin_lock_init(&rfkill_op_lock);
+
+	/* Avoid delay at first schedule */
+	rfkill_last_scheduled =
+			jiffies - msecs_to_jiffies(RFKILL_OPS_DELAY) - 1;
+	return input_register_handler(&rfkill_handler);
+}
+
+void __exit rfkill_handler_exit(void)
+{
+	input_unregister_handler(&rfkill_handler);
+	cancel_delayed_work_sync(&rfkill_op_work);
+}
diff --git a/net/rfkill/rfkill-input.c b/net/rfkill/rfkill-input.c
deleted file mode 100644
index 60a34f3b5f65..000000000000
--- a/net/rfkill/rfkill-input.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- * Input layer to RF Kill interface connector
- *
- * Copyright (c) 2007 Dmitry Torokhov
- */
-
-/*
- * 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/input.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-#include <linux/init.h>
-#include <linux/rfkill.h>
-#include <linux/sched.h>
-
-#include "rfkill-input.h"
-
-MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
-MODULE_DESCRIPTION("Input layer to RF switch connector");
-MODULE_LICENSE("GPL");
-
-enum rfkill_input_master_mode {
-	RFKILL_INPUT_MASTER_DONOTHING = 0,
-	RFKILL_INPUT_MASTER_RESTORE = 1,
-	RFKILL_INPUT_MASTER_UNBLOCKALL = 2,
-	RFKILL_INPUT_MASTER_MAX,	/* marker */
-};
-
-/* Delay (in ms) between consecutive switch ops */
-#define RFKILL_OPS_DELAY 200
-
-static enum rfkill_input_master_mode rfkill_master_switch_mode =
-					RFKILL_INPUT_MASTER_UNBLOCKALL;
-module_param_named(master_switch_mode, rfkill_master_switch_mode, uint, 0);
-MODULE_PARM_DESC(master_switch_mode,
-	"SW_RFKILL_ALL ON should: 0=do nothing; 1=restore; 2=unblock all");
-
-enum rfkill_global_sched_op {
-	RFKILL_GLOBAL_OP_EPO = 0,
-	RFKILL_GLOBAL_OP_RESTORE,
-	RFKILL_GLOBAL_OP_UNLOCK,
-	RFKILL_GLOBAL_OP_UNBLOCK,
-};
-
-struct rfkill_task {
-	struct delayed_work dwork;
-
-	/* ensures that task is serialized */
-	struct mutex mutex;
-
-	/* protects everything below */
-	spinlock_t lock;
-
-	/* pending regular switch operations (1=pending) */
-	unsigned long sw_pending[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
-	/* should the state be complemented (1=yes) */
-	unsigned long sw_togglestate[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
-	bool global_op_pending;
-	enum rfkill_global_sched_op op;
-
-	/* last time it was scheduled */
-	unsigned long last_scheduled;
-};
-
-static void __rfkill_handle_global_op(enum rfkill_global_sched_op op)
-{
-	unsigned int i;
-
-	switch (op) {
-	case RFKILL_GLOBAL_OP_EPO:
-		rfkill_epo();
-		break;
-	case RFKILL_GLOBAL_OP_RESTORE:
-		rfkill_restore_states();
-		break;
-	case RFKILL_GLOBAL_OP_UNLOCK:
-		rfkill_remove_epo_lock();
-		break;
-	case RFKILL_GLOBAL_OP_UNBLOCK:
-		rfkill_remove_epo_lock();
-		for (i = 0; i < RFKILL_TYPE_MAX; i++)
-			rfkill_switch_all(i, RFKILL_STATE_UNBLOCKED);
-		break;
-	default:
-		/* memory corruption or bug, fail safely */
-		rfkill_epo();
-		WARN(1, "Unknown requested operation %d! "
-			"rfkill Emergency Power Off activated\n",
-			op);
-	}
-}
-
-static void __rfkill_handle_normal_op(const enum rfkill_type type,
-			const bool c)
-{
-	enum rfkill_state state;
-
-	state = rfkill_get_global_state(type);
-	if (c)
-		state = rfkill_state_complement(state);
-
-	rfkill_switch_all(type, state);
-}
-
-static void rfkill_task_handler(struct work_struct *work)
-{
-	struct rfkill_task *task = container_of(work,
-					struct rfkill_task, dwork.work);
-	bool doit = true;
-
-	mutex_lock(&task->mutex);
-
-	spin_lock_irq(&task->lock);
-	while (doit) {
-		if (task->global_op_pending) {
-			enum rfkill_global_sched_op op = task->op;
-			task->global_op_pending = false;
-			memset(task->sw_pending, 0, sizeof(task->sw_pending));
-			spin_unlock_irq(&task->lock);
-
-			__rfkill_handle_global_op(op);
-
-			/* make sure we do at least one pass with
-			 * !task->global_op_pending */
-			spin_lock_irq(&task->lock);
-			continue;
-		} else if (!rfkill_is_epo_lock_active()) {
-			unsigned int i = 0;
-
-			while (!task->global_op_pending &&
-						i < RFKILL_TYPE_MAX) {
-				if (test_and_clear_bit(i, task->sw_pending)) {
-					bool c;
-					c = test_and_clear_bit(i,
-							task->sw_togglestate);
-					spin_unlock_irq(&task->lock);
-
-					__rfkill_handle_normal_op(i, c);
-
-					spin_lock_irq(&task->lock);
-				}
-				i++;
-			}
-		}
-		doit = task->global_op_pending;
-	}
-	spin_unlock_irq(&task->lock);
-
-	mutex_unlock(&task->mutex);
-}
-
-static struct rfkill_task rfkill_task = {
-	.dwork = __DELAYED_WORK_INITIALIZER(rfkill_task.dwork,
-				rfkill_task_handler),
-	.mutex = __MUTEX_INITIALIZER(rfkill_task.mutex),
-	.lock = __SPIN_LOCK_UNLOCKED(rfkill_task.lock),
-};
-
-static unsigned long rfkill_ratelimit(const unsigned long last)
-{
-	const unsigned long delay = msecs_to_jiffies(RFKILL_OPS_DELAY);
-	return (time_after(jiffies, last + delay)) ? 0 : delay;
-}
-
-static void rfkill_schedule_ratelimited(void)
-{
-	if (!delayed_work_pending(&rfkill_task.dwork)) {
-		schedule_delayed_work(&rfkill_task.dwork,
-				rfkill_ratelimit(rfkill_task.last_scheduled));
-		rfkill_task.last_scheduled = jiffies;
-	}
-}
-
-static void rfkill_schedule_global_op(enum rfkill_global_sched_op op)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&rfkill_task.lock, flags);
-	rfkill_task.op = op;
-	rfkill_task.global_op_pending = true;
-	if (op == RFKILL_GLOBAL_OP_EPO && !rfkill_is_epo_lock_active()) {
-		/* bypass the limiter for EPO */
-		cancel_delayed_work(&rfkill_task.dwork);
-		schedule_delayed_work(&rfkill_task.dwork, 0);
-		rfkill_task.last_scheduled = jiffies;
-	} else
-		rfkill_schedule_ratelimited();
-	spin_unlock_irqrestore(&rfkill_task.lock, flags);
-}
-
-static void rfkill_schedule_toggle(enum rfkill_type type)
-{
-	unsigned long flags;
-
-	if (rfkill_is_epo_lock_active())
-		return;
-
-	spin_lock_irqsave(&rfkill_task.lock, flags);
-	if (!rfkill_task.global_op_pending) {
-		set_bit(type, rfkill_task.sw_pending);
-		change_bit(type, rfkill_task.sw_togglestate);
-		rfkill_schedule_ratelimited();
-	}
-	spin_unlock_irqrestore(&rfkill_task.lock, flags);
-}
-
-static void rfkill_schedule_evsw_rfkillall(int state)
-{
-	if (state) {
-		switch (rfkill_master_switch_mode) {
-		case RFKILL_INPUT_MASTER_UNBLOCKALL:
-			rfkill_schedule_global_op(RFKILL_GLOBAL_OP_UNBLOCK);
-			break;
-		case RFKILL_INPUT_MASTER_RESTORE:
-			rfkill_schedule_global_op(RFKILL_GLOBAL_OP_RESTORE);
-			break;
-		case RFKILL_INPUT_MASTER_DONOTHING:
-			rfkill_schedule_global_op(RFKILL_GLOBAL_OP_UNLOCK);
-			break;
-		default:
-			/* memory corruption or driver bug! fail safely */
-			rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
-			WARN(1, "Unknown rfkill_master_switch_mode (%d), "
-				"driver bug or memory corruption detected!\n",
-				rfkill_master_switch_mode);
-			break;
-		}
-	} else
-		rfkill_schedule_global_op(RFKILL_GLOBAL_OP_EPO);
-}
-
-static void rfkill_event(struct input_handle *handle, unsigned int type,
-			unsigned int code, int data)
-{
-	if (type == EV_KEY && data == 1) {
-		enum rfkill_type t;
-
-		switch (code) {
-		case KEY_WLAN:
-			t = RFKILL_TYPE_WLAN;
-			break;
-		case KEY_BLUETOOTH:
-			t = RFKILL_TYPE_BLUETOOTH;
-			break;
-		case KEY_UWB:
-			t = RFKILL_TYPE_UWB;
-			break;
-		case KEY_WIMAX:
-			t = RFKILL_TYPE_WIMAX;
-			break;
-		default:
-			return;
-		}
-		rfkill_schedule_toggle(t);
-		return;
-	} else if (type == EV_SW) {
-		switch (code) {
-		case SW_RFKILL_ALL:
-			rfkill_schedule_evsw_rfkillall(data);
-			return;
-		default:
-			return;
-		}
-	}
-}
-
-static int rfkill_connect(struct input_handler *handler, struct input_dev *dev,
-			  const struct input_device_id *id)
-{
-	struct input_handle *handle;
-	int error;
-
-	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
-	if (!handle)
-		return -ENOMEM;
-
-	handle->dev = dev;
-	handle->handler = handler;
-	handle->name = "rfkill";
-
-	/* causes rfkill_start() to be called */
-	error = input_register_handle(handle);
-	if (error)
-		goto err_free_handle;
-
-	error = input_open_device(handle);
-	if (error)
-		goto err_unregister_handle;
-
-	return 0;
-
- err_unregister_handle:
-	input_unregister_handle(handle);
- err_free_handle:
-	kfree(handle);
-	return error;
-}
-
-static void rfkill_start(struct input_handle *handle)
-{
-	/* Take event_lock to guard against configuration changes, we
-	 * should be able to deal with concurrency with rfkill_event()
-	 * just fine (which event_lock will also avoid). */
-	spin_lock_irq(&handle->dev->event_lock);
-
-	if (test_bit(EV_SW, handle->dev->evbit)) {
-		if (test_bit(SW_RFKILL_ALL, handle->dev->swbit))
-			rfkill_schedule_evsw_rfkillall(test_bit(SW_RFKILL_ALL,
-							handle->dev->sw));
-		/* add resync for further EV_SW events here */
-	}
-
-	spin_unlock_irq(&handle->dev->event_lock);
-}
-
-static void rfkill_disconnect(struct input_handle *handle)
-{
-	input_close_device(handle);
-	input_unregister_handle(handle);
-	kfree(handle);
-}
-
-static const struct input_device_id rfkill_ids[] = {
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { [BIT_WORD(KEY_WLAN)] = BIT_MASK(KEY_WLAN) },
-	},
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { [BIT_WORD(KEY_BLUETOOTH)] = BIT_MASK(KEY_BLUETOOTH) },
-	},
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { [BIT_WORD(KEY_UWB)] = BIT_MASK(KEY_UWB) },
-	},
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
-	},
-	{
-		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_SWBIT,
-		.evbit = { BIT(EV_SW) },
-		.swbit = { [BIT_WORD(SW_RFKILL_ALL)] = BIT_MASK(SW_RFKILL_ALL) },
-	},
-	{ }
-};
-
-static struct input_handler rfkill_handler = {
-	.event =	rfkill_event,
-	.connect =	rfkill_connect,
-	.disconnect =	rfkill_disconnect,
-	.start =	rfkill_start,
-	.name =		"rfkill",
-	.id_table =	rfkill_ids,
-};
-
-static int __init rfkill_handler_init(void)
-{
-	if (rfkill_master_switch_mode >= RFKILL_INPUT_MASTER_MAX)
-		return -EINVAL;
-
-	/*
-	 * The penalty to not doing this is a possible RFKILL_OPS_DELAY delay
-	 * at the first use.  Acceptable, but if we can avoid it, why not?
-	 */
-	rfkill_task.last_scheduled =
-			jiffies - msecs_to_jiffies(RFKILL_OPS_DELAY) - 1;
-	return input_register_handler(&rfkill_handler);
-}
-
-static void __exit rfkill_handler_exit(void)
-{
-	input_unregister_handler(&rfkill_handler);
-	cancel_delayed_work_sync(&rfkill_task.dwork);
-	rfkill_remove_epo_lock();
-}
-
-module_init(rfkill_handler_init);
-module_exit(rfkill_handler_exit);
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
deleted file mode 100644
index 4f5a83183c95..000000000000
--- a/net/rfkill/rfkill.c
+++ /dev/null
@@ -1,855 +0,0 @@
-/*
- * Copyright (C) 2006 - 2007 Ivo van Doorn
- * Copyright (C) 2007 Dmitry Torokhov
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/workqueue.h>
-#include <linux/capability.h>
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/rfkill.h>
-
-/* Get declaration of rfkill_switch_all() to shut up sparse. */
-#include "rfkill-input.h"
-
-
-MODULE_AUTHOR("Ivo van Doorn <IvDoorn@gmail.com>");
-MODULE_VERSION("1.0");
-MODULE_DESCRIPTION("RF switch support");
-MODULE_LICENSE("GPL");
-
-static LIST_HEAD(rfkill_list);	/* list of registered rf switches */
-static DEFINE_MUTEX(rfkill_global_mutex);
-
-static unsigned int rfkill_default_state = RFKILL_STATE_UNBLOCKED;
-module_param_named(default_state, rfkill_default_state, uint, 0444);
-MODULE_PARM_DESC(default_state,
-		 "Default initial state for all radio types, 0 = radio off");
-
-struct rfkill_gsw_state {
-	enum rfkill_state current_state;
-	enum rfkill_state default_state;
-};
-
-static struct rfkill_gsw_state rfkill_global_states[RFKILL_TYPE_MAX];
-static unsigned long rfkill_states_lockdflt[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-static bool rfkill_epo_lock_active;
-
-
-#ifdef CONFIG_RFKILL_LEDS
-static void rfkill_led_trigger(struct rfkill *rfkill,
-			       enum rfkill_state state)
-{
-	struct led_trigger *led = &rfkill->led_trigger;
-
-	if (!led->name)
-		return;
-	if (state != RFKILL_STATE_UNBLOCKED)
-		led_trigger_event(led, LED_OFF);
-	else
-		led_trigger_event(led, LED_FULL);
-}
-
-static void rfkill_led_trigger_activate(struct led_classdev *led)
-{
-	struct rfkill *rfkill = container_of(led->trigger,
-			struct rfkill, led_trigger);
-
-	rfkill_led_trigger(rfkill, rfkill->state);
-}
-#else
-static inline void rfkill_led_trigger(struct rfkill *rfkill,
-					enum rfkill_state state)
-{
-}
-#endif /* CONFIG_RFKILL_LEDS */
-
-static void rfkill_uevent(struct rfkill *rfkill)
-{
-	kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);
-}
-
-static void update_rfkill_state(struct rfkill *rfkill)
-{
-	enum rfkill_state newstate, oldstate;
-
-	if (rfkill->get_state) {
-		mutex_lock(&rfkill->mutex);
-		if (!rfkill->get_state(rfkill->data, &newstate)) {
-			oldstate = rfkill->state;
-			rfkill->state = newstate;
-			if (oldstate != newstate)
-				rfkill_uevent(rfkill);
-		}
-		mutex_unlock(&rfkill->mutex);
-	}
-	rfkill_led_trigger(rfkill, rfkill->state);
-}
-
-/**
- * rfkill_toggle_radio - wrapper for toggle_radio hook
- * @rfkill: the rfkill struct to use
- * @force: calls toggle_radio even if cache says it is not needed,
- *	and also makes sure notifications of the state will be
- *	sent even if it didn't change
- * @state: the new state to call toggle_radio() with
- *
- * Calls rfkill->toggle_radio, enforcing the API for toggle_radio
- * calls and handling all the red tape such as issuing notifications
- * if the call is successful.
- *
- * Suspended devices are not touched at all, and -EAGAIN is returned.
- *
- * Note that the @force parameter cannot override a (possibly cached)
- * state of RFKILL_STATE_HARD_BLOCKED.  Any device making use of
- * RFKILL_STATE_HARD_BLOCKED implements either get_state() or
- * rfkill_force_state(), so the cache either is bypassed or valid.
- *
- * Note that we do call toggle_radio for RFKILL_STATE_SOFT_BLOCKED
- * even if the radio is in RFKILL_STATE_HARD_BLOCKED state, so as to
- * give the driver a hint that it should double-BLOCK the transmitter.
- *
- * Caller must have acquired rfkill->mutex.
- */
-static int rfkill_toggle_radio(struct rfkill *rfkill,
-				enum rfkill_state state,
-				int force)
-{
-	int retval = 0;
-	enum rfkill_state oldstate, newstate;
-
-	if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
-		return -EBUSY;
-
-	oldstate = rfkill->state;
-
-	if (rfkill->get_state && !force &&
-	    !rfkill->get_state(rfkill->data, &newstate)) {
-		rfkill->state = newstate;
-	}
-
-	switch (state) {
-	case RFKILL_STATE_HARD_BLOCKED:
-		/* typically happens when refreshing hardware state,
-		 * such as on resume */
-		state = RFKILL_STATE_SOFT_BLOCKED;
-		break;
-	case RFKILL_STATE_UNBLOCKED:
-		/* force can't override this, only rfkill_force_state() can */
-		if (rfkill->state == RFKILL_STATE_HARD_BLOCKED)
-			return -EPERM;
-		break;
-	case RFKILL_STATE_SOFT_BLOCKED:
-		/* nothing to do, we want to give drivers the hint to double
-		 * BLOCK even a transmitter that is already in state
-		 * RFKILL_STATE_HARD_BLOCKED */
-		break;
-	default:
-		WARN(1, KERN_WARNING
-			"rfkill: illegal state %d passed as parameter "
-			"to rfkill_toggle_radio\n", state);
-		return -EINVAL;
-	}
-
-	if (force || state != rfkill->state) {
-		retval = rfkill->toggle_radio(rfkill->data, state);
-		/* never allow a HARD->SOFT downgrade! */
-		if (!retval && rfkill->state != RFKILL_STATE_HARD_BLOCKED)
-			rfkill->state = state;
-	}
-
-	if (force || rfkill->state != oldstate)
-		rfkill_uevent(rfkill);
-
-	rfkill_led_trigger(rfkill, rfkill->state);
-	return retval;
-}
-
-/**
- * __rfkill_switch_all - Toggle state of all switches of given type
- * @type: type of interfaces to be affected
- * @state: the new state
- *
- * This function toggles the state of all switches of given type,
- * unless a specific switch is claimed by userspace (in which case,
- * that switch is left alone) or suspended.
- *
- * Caller must have acquired rfkill_global_mutex.
- */
-static void __rfkill_switch_all(const enum rfkill_type type,
-				const enum rfkill_state state)
-{
-	struct rfkill *rfkill;
-
-	if (WARN((state >= RFKILL_STATE_MAX || type >= RFKILL_TYPE_MAX),
-			KERN_WARNING
-			"rfkill: illegal state %d or type %d "
-			"passed as parameter to __rfkill_switch_all\n",
-			state, type))
-		return;
-
-	rfkill_global_states[type].current_state = state;
-	list_for_each_entry(rfkill, &rfkill_list, node) {
-		if (rfkill->type == type) {
-			mutex_lock(&rfkill->mutex);
-			rfkill_toggle_radio(rfkill, state, 0);
-			mutex_unlock(&rfkill->mutex);
-			rfkill_led_trigger(rfkill, rfkill->state);
-		}
-	}
-}
-
-/**
- * rfkill_switch_all - Toggle state of all switches of given type
- * @type: type of interfaces to be affected
- * @state: the new state
- *
- * Acquires rfkill_global_mutex and calls __rfkill_switch_all(@type, @state).
- * Please refer to __rfkill_switch_all() for details.
- *
- * Does nothing if the EPO lock is active.
- */
-void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state)
-{
-	mutex_lock(&rfkill_global_mutex);
-	if (!rfkill_epo_lock_active)
-		__rfkill_switch_all(type, state);
-	mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL(rfkill_switch_all);
-
-/**
- * rfkill_epo - emergency power off all transmitters
- *
- * This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
- * ignoring everything in its path but rfkill_global_mutex and rfkill->mutex.
- *
- * The global state before the EPO is saved and can be restored later
- * using rfkill_restore_states().
- */
-void rfkill_epo(void)
-{
-	struct rfkill *rfkill;
-	int i;
-
-	mutex_lock(&rfkill_global_mutex);
-
-	rfkill_epo_lock_active = true;
-	list_for_each_entry(rfkill, &rfkill_list, node) {
-		mutex_lock(&rfkill->mutex);
-		rfkill_toggle_radio(rfkill, RFKILL_STATE_SOFT_BLOCKED, 1);
-		mutex_unlock(&rfkill->mutex);
-	}
-	for (i = 0; i < RFKILL_TYPE_MAX; i++) {
-		rfkill_global_states[i].default_state =
-				rfkill_global_states[i].current_state;
-		rfkill_global_states[i].current_state =
-				RFKILL_STATE_SOFT_BLOCKED;
-	}
-	mutex_unlock(&rfkill_global_mutex);
-	rfkill_led_trigger(rfkill, rfkill->state);
-}
-EXPORT_SYMBOL_GPL(rfkill_epo);
-
-/**
- * rfkill_restore_states - restore global states
- *
- * Restore (and sync switches to) the global state from the
- * states in rfkill_default_states.  This can undo the effects of
- * a call to rfkill_epo().
- */
-void rfkill_restore_states(void)
-{
-	int i;
-
-	mutex_lock(&rfkill_global_mutex);
-
-	rfkill_epo_lock_active = false;
-	for (i = 0; i < RFKILL_TYPE_MAX; i++)
-		__rfkill_switch_all(i, rfkill_global_states[i].default_state);
-	mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL_GPL(rfkill_restore_states);
-
-/**
- * rfkill_remove_epo_lock - unlock state changes
- *
- * Used by rfkill-input manually unlock state changes, when
- * the EPO switch is deactivated.
- */
-void rfkill_remove_epo_lock(void)
-{
-	mutex_lock(&rfkill_global_mutex);
-	rfkill_epo_lock_active = false;
-	mutex_unlock(&rfkill_global_mutex);
-}
-EXPORT_SYMBOL_GPL(rfkill_remove_epo_lock);
-
-/**
- * rfkill_is_epo_lock_active - returns true EPO is active
- *
- * Returns 0 (false) if there is NOT an active EPO contidion,
- * and 1 (true) if there is an active EPO contition, which
- * locks all radios in one of the BLOCKED states.
- *
- * Can be called in atomic context.
- */
-bool rfkill_is_epo_lock_active(void)
-{
-	return rfkill_epo_lock_active;
-}
-EXPORT_SYMBOL_GPL(rfkill_is_epo_lock_active);
-
-/**
- * rfkill_get_global_state - returns global state for a type
- * @type: the type to get the global state of
- *
- * Returns the current global state for a given wireless
- * device type.
- */
-enum rfkill_state rfkill_get_global_state(const enum rfkill_type type)
-{
-	return rfkill_global_states[type].current_state;
-}
-EXPORT_SYMBOL_GPL(rfkill_get_global_state);
-
-/**
- * rfkill_force_state - Force the internal rfkill radio state
- * @rfkill: pointer to the rfkill class to modify.
- * @state: the current radio state the class should be forced to.
- *
- * This function updates the internal state of the radio cached
- * by the rfkill class.  It should be used when the driver gets
- * a notification by the firmware/hardware of the current *real*
- * state of the radio rfkill switch.
- *
- * Devices which are subject to external changes on their rfkill
- * state (such as those caused by a hardware rfkill line) MUST
- * have their driver arrange to call rfkill_force_state() as soon
- * as possible after such a change.
- *
- * This function may not be called from an atomic context.
- */
-int rfkill_force_state(struct rfkill *rfkill, enum rfkill_state state)
-{
-	enum rfkill_state oldstate;
-
-	BUG_ON(!rfkill);
-	if (WARN((state >= RFKILL_STATE_MAX),
-			KERN_WARNING
-			"rfkill: illegal state %d passed as parameter "
-			"to rfkill_force_state\n", state))
-		return -EINVAL;
-
-	mutex_lock(&rfkill->mutex);
-
-	oldstate = rfkill->state;
-	rfkill->state = state;
-
-	if (state != oldstate)
-		rfkill_uevent(rfkill);
-
-	mutex_unlock(&rfkill->mutex);
-	rfkill_led_trigger(rfkill, rfkill->state);
-
-	return 0;
-}
-EXPORT_SYMBOL(rfkill_force_state);
-
-static ssize_t rfkill_name_show(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	return sprintf(buf, "%s\n", rfkill->name);
-}
-
-static const char *rfkill_get_type_str(enum rfkill_type type)
-{
-	switch (type) {
-	case RFKILL_TYPE_WLAN:
-		return "wlan";
-	case RFKILL_TYPE_BLUETOOTH:
-		return "bluetooth";
-	case RFKILL_TYPE_UWB:
-		return "ultrawideband";
-	case RFKILL_TYPE_WIMAX:
-		return "wimax";
-	case RFKILL_TYPE_WWAN:
-		return "wwan";
-	default:
-		BUG();
-	}
-}
-
-static ssize_t rfkill_type_show(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
-}
-
-static ssize_t rfkill_state_show(struct device *dev,
-				 struct device_attribute *attr,
-				 char *buf)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	update_rfkill_state(rfkill);
-	return sprintf(buf, "%d\n", rfkill->state);
-}
-
-static ssize_t rfkill_state_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t count)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-	unsigned long state;
-	int error;
-
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	error = strict_strtoul(buf, 0, &state);
-	if (error)
-		return error;
-
-	/* RFKILL_STATE_HARD_BLOCKED is illegal here... */
-	if (state != RFKILL_STATE_UNBLOCKED &&
-	    state != RFKILL_STATE_SOFT_BLOCKED)
-		return -EINVAL;
-
-	error = mutex_lock_killable(&rfkill->mutex);
-	if (error)
-		return error;
-
-	if (!rfkill_epo_lock_active)
-		error = rfkill_toggle_radio(rfkill, state, 0);
-	else
-		error = -EPERM;
-
-	mutex_unlock(&rfkill->mutex);
-
-	return error ? error : count;
-}
-
-static ssize_t rfkill_claim_show(struct device *dev,
-				 struct device_attribute *attr,
-				 char *buf)
-{
-	return sprintf(buf, "%d\n", 0);
-}
-
-static ssize_t rfkill_claim_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t count)
-{
-	return -EOPNOTSUPP;
-}
-
-static struct device_attribute rfkill_dev_attrs[] = {
-	__ATTR(name, S_IRUGO, rfkill_name_show, NULL),
-	__ATTR(type, S_IRUGO, rfkill_type_show, NULL),
-	__ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
-	__ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
-	__ATTR_NULL
-};
-
-static void rfkill_release(struct device *dev)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	kfree(rfkill);
-	module_put(THIS_MODULE);
-}
-
-#ifdef CONFIG_PM
-static int rfkill_suspend(struct device *dev, pm_message_t state)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-
-	/* mark class device as suspended */
-	if (dev->power.power_state.event != state.event)
-		dev->power.power_state = state;
-
-	/* store state for the resume handler */
-	rfkill->state_for_resume = rfkill->state;
-
-	return 0;
-}
-
-static int rfkill_resume(struct device *dev)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-	enum rfkill_state newstate;
-
-	if (dev->power.power_state.event != PM_EVENT_ON) {
-		mutex_lock(&rfkill->mutex);
-
-		dev->power.power_state.event = PM_EVENT_ON;
-
-		/*
-		 * rfkill->state could have been modified before we got
-		 * called, and won't be updated by rfkill_toggle_radio()
-		 * in force mode.  Sync it FIRST.
-		 */
-		if (rfkill->get_state &&
-		    !rfkill->get_state(rfkill->data, &newstate))
-			rfkill->state = newstate;
-
-		/*
-		 * If we are under EPO, kick transmitter offline,
-		 * otherwise restore to pre-suspend state.
-		 *
-		 * Issue a notification in any case
-		 */
-		rfkill_toggle_radio(rfkill,
-				rfkill_epo_lock_active ?
-					RFKILL_STATE_SOFT_BLOCKED :
-					rfkill->state_for_resume,
-				1);
-
-		mutex_unlock(&rfkill->mutex);
-		rfkill_led_trigger(rfkill, rfkill->state);
-	}
-
-	return 0;
-}
-#else
-#define rfkill_suspend NULL
-#define rfkill_resume NULL
-#endif
-
-static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
-	struct rfkill *rfkill = to_rfkill(dev);
-	int error;
-
-	error = add_uevent_var(env, "RFKILL_NAME=%s", rfkill->name);
-	if (error)
-		return error;
-	error = add_uevent_var(env, "RFKILL_TYPE=%s",
-				rfkill_get_type_str(rfkill->type));
-	if (error)
-		return error;
-	error = add_uevent_var(env, "RFKILL_STATE=%d", rfkill->state);
-	return error;
-}
-
-static struct class rfkill_class = {
-	.name		= "rfkill",
-	.dev_release	= rfkill_release,
-	.dev_attrs	= rfkill_dev_attrs,
-	.suspend	= rfkill_suspend,
-	.resume		= rfkill_resume,
-	.dev_uevent	= rfkill_dev_uevent,
-};
-
-static int rfkill_check_duplicity(const struct rfkill *rfkill)
-{
-	struct rfkill *p;
-	unsigned long seen[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
-
-	memset(seen, 0, sizeof(seen));
-
-	list_for_each_entry(p, &rfkill_list, node) {
-		if (WARN((p == rfkill), KERN_WARNING
-				"rfkill: illegal attempt to register "
-				"an already registered rfkill struct\n"))
-			return -EEXIST;
-		set_bit(p->type, seen);
-	}
-
-	/* 0: first switch of its kind */
-	return (test_bit(rfkill->type, seen)) ? 1 : 0;
-}
-
-static int rfkill_add_switch(struct rfkill *rfkill)
-{
-	int error;
-
-	mutex_lock(&rfkill_global_mutex);
-
-	error = rfkill_check_duplicity(rfkill);
-	if (error < 0)
-		goto unlock_out;
-
-	if (!error) {
-		/* lock default after first use */
-		set_bit(rfkill->type, rfkill_states_lockdflt);
-		rfkill_global_states[rfkill->type].current_state =
-			rfkill_global_states[rfkill->type].default_state;
-	}
-
-	rfkill_toggle_radio(rfkill,
-			    rfkill_global_states[rfkill->type].current_state,
-			    0);
-
-	list_add_tail(&rfkill->node, &rfkill_list);
-
-	error = 0;
-unlock_out:
-	mutex_unlock(&rfkill_global_mutex);
-
-	return error;
-}
-
-static void rfkill_remove_switch(struct rfkill *rfkill)
-{
-	mutex_lock(&rfkill_global_mutex);
-	list_del_init(&rfkill->node);
-	mutex_unlock(&rfkill_global_mutex);
-
-	mutex_lock(&rfkill->mutex);
-	rfkill_toggle_radio(rfkill, RFKILL_STATE_SOFT_BLOCKED, 1);
-	mutex_unlock(&rfkill->mutex);
-}
-
-/**
- * rfkill_allocate - allocate memory for rfkill structure.
- * @parent: device that has rf switch on it
- * @type: type of the switch (RFKILL_TYPE_*)
- *
- * This function should be called by the network driver when it needs
- * rfkill structure.  Once the structure is allocated the driver should
- * finish its initialization by setting the name, private data, enable_radio
- * and disable_radio methods and then register it with rfkill_register().
- *
- * NOTE: If registration fails the structure shoudl be freed by calling
- * rfkill_free() otherwise rfkill_unregister() should be used.
- */
-struct rfkill * __must_check rfkill_allocate(struct device *parent,
-					     enum rfkill_type type)
-{
-	struct rfkill *rfkill;
-	struct device *dev;
-
-	if (WARN((type >= RFKILL_TYPE_MAX),
-			KERN_WARNING
-			"rfkill: illegal type %d passed as parameter "
-			"to rfkill_allocate\n", type))
-		return NULL;
-
-	rfkill = kzalloc(sizeof(struct rfkill), GFP_KERNEL);
-	if (!rfkill)
-		return NULL;
-
-	mutex_init(&rfkill->mutex);
-	INIT_LIST_HEAD(&rfkill->node);
-	rfkill->type = type;
-
-	dev = &rfkill->dev;
-	dev->class = &rfkill_class;
-	dev->parent = parent;
-	device_initialize(dev);
-
-	__module_get(THIS_MODULE);
-
-	return rfkill;
-}
-EXPORT_SYMBOL(rfkill_allocate);
-
-/**
- * rfkill_free - Mark rfkill structure for deletion
- * @rfkill: rfkill structure to be destroyed
- *
- * Decrements reference count of the rfkill structure so it is destroyed.
- * Note that rfkill_free() should _not_ be called after rfkill_unregister().
- */
-void rfkill_free(struct rfkill *rfkill)
-{
-	if (rfkill)
-		put_device(&rfkill->dev);
-}
-EXPORT_SYMBOL(rfkill_free);
-
-static void rfkill_led_trigger_register(struct rfkill *rfkill)
-{
-#ifdef CONFIG_RFKILL_LEDS
-	int error;
-
-	if (!rfkill->led_trigger.name)
-		rfkill->led_trigger.name = dev_name(&rfkill->dev);
-	if (!rfkill->led_trigger.activate)
-		rfkill->led_trigger.activate = rfkill_led_trigger_activate;
-	error = led_trigger_register(&rfkill->led_trigger);
-	if (error)
-		rfkill->led_trigger.name = NULL;
-#endif /* CONFIG_RFKILL_LEDS */
-}
-
-static void rfkill_led_trigger_unregister(struct rfkill *rfkill)
-{
-#ifdef CONFIG_RFKILL_LEDS
-	if (rfkill->led_trigger.name) {
-		led_trigger_unregister(&rfkill->led_trigger);
-		rfkill->led_trigger.name = NULL;
-	}
-#endif
-}
-
-/**
- * rfkill_register - Register a rfkill structure.
- * @rfkill: rfkill structure to be registered
- *
- * This function should be called by the network driver when the rfkill
- * structure needs to be registered. Immediately from registration the
- * switch driver should be able to service calls to toggle_radio.
- */
-int __must_check rfkill_register(struct rfkill *rfkill)
-{
-	static atomic_t rfkill_no = ATOMIC_INIT(0);
-	struct device *dev = &rfkill->dev;
-	int error;
-
-	if (WARN((!rfkill || !rfkill->toggle_radio ||
-			rfkill->type >= RFKILL_TYPE_MAX ||
-			rfkill->state >= RFKILL_STATE_MAX),
-			KERN_WARNING
-			"rfkill: attempt to register a "
-			"badly initialized rfkill struct\n"))
-		return -EINVAL;
-
-	dev_set_name(dev, "rfkill%ld", (long)atomic_inc_return(&rfkill_no) - 1);
-
-	rfkill_led_trigger_register(rfkill);
-
-	error = rfkill_add_switch(rfkill);
-	if (error) {
-		rfkill_led_trigger_unregister(rfkill);
-		return error;
-	}
-
-	error = device_add(dev);
-	if (error) {
-		rfkill_remove_switch(rfkill);
-		rfkill_led_trigger_unregister(rfkill);
-		return error;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(rfkill_register);
-
-/**
- * rfkill_unregister - Unregister a rfkill structure.
- * @rfkill: rfkill structure to be unregistered
- *
- * This function should be called by the network driver during device
- * teardown to destroy rfkill structure. Note that rfkill_free() should
- * _not_ be called after rfkill_unregister().
- */
-void rfkill_unregister(struct rfkill *rfkill)
-{
-	BUG_ON(!rfkill);
-	device_del(&rfkill->dev);
-	rfkill_remove_switch(rfkill);
-	rfkill_led_trigger_unregister(rfkill);
-	put_device(&rfkill->dev);
-}
-EXPORT_SYMBOL(rfkill_unregister);
-
-/**
- * rfkill_set_default - set initial value for a switch type
- * @type - the type of switch to set the default state of
- * @state - the new default state for that group of switches
- *
- * Sets the initial state rfkill should use for a given type.
- * The following initial states are allowed: RFKILL_STATE_SOFT_BLOCKED
- * and RFKILL_STATE_UNBLOCKED.
- *
- * This function is meant to be used by platform drivers for platforms
- * that can save switch state across power down/reboot.
- *
- * The default state for each switch type can be changed exactly once.
- * After a switch of that type is registered, the default state cannot
- * be changed anymore.  This guards against multiple drivers it the
- * same platform trying to set the initial switch default state, which
- * is not allowed.
- *
- * Returns -EPERM if the state has already been set once or is in use,
- * so drivers likely want to either ignore or at most printk(KERN_NOTICE)
- * if this function returns -EPERM.
- *
- * Returns 0 if the new default state was set, or an error if it
- * could not be set.
- */
-int rfkill_set_default(enum rfkill_type type, enum rfkill_state state)
-{
-	int error;
-
-	if (WARN((type >= RFKILL_TYPE_MAX ||
-			(state != RFKILL_STATE_SOFT_BLOCKED &&
-			 state != RFKILL_STATE_UNBLOCKED)),
-			KERN_WARNING
-			"rfkill: illegal state %d or type %d passed as "
-			"parameter to rfkill_set_default\n", state, type))
-		return -EINVAL;
-
-	mutex_lock(&rfkill_global_mutex);
-
-	if (!test_and_set_bit(type, rfkill_states_lockdflt)) {
-		rfkill_global_states[type].default_state = state;
-		rfkill_global_states[type].current_state = state;
-		error = 0;
-	} else
-		error = -EPERM;
-
-	mutex_unlock(&rfkill_global_mutex);
-	return error;
-}
-EXPORT_SYMBOL_GPL(rfkill_set_default);
-
-/*
- * Rfkill module initialization/deinitialization.
- */
-static int __init rfkill_init(void)
-{
-	int error;
-	int i;
-
-	/* RFKILL_STATE_HARD_BLOCKED is illegal here... */
-	if (rfkill_default_state != RFKILL_STATE_SOFT_BLOCKED &&
-	    rfkill_default_state != RFKILL_STATE_UNBLOCKED)
-		return -EINVAL;
-
-	for (i = 0; i < RFKILL_TYPE_MAX; i++)
-		rfkill_global_states[i].default_state = rfkill_default_state;
-
-	error = class_register(&rfkill_class);
-	if (error) {
-		printk(KERN_ERR "rfkill: unable to register rfkill class\n");
-		return error;
-	}
-
-	return 0;
-}
-
-static void __exit rfkill_exit(void)
-{
-	class_unregister(&rfkill_class);
-}
-
-subsys_initcall(rfkill_init);
-module_exit(rfkill_exit);
diff --git a/net/rfkill/rfkill-input.h b/net/rfkill/rfkill.h
index fe8df6b5b935..d1117cb6e4de 100644
--- a/net/rfkill/rfkill-input.h
+++ b/net/rfkill/rfkill.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2007 Ivo van Doorn
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
  */
 
 /*
@@ -11,11 +12,16 @@
 #ifndef __RFKILL_INPUT_H
 #define __RFKILL_INPUT_H
 
-void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state);
+/* core code */
+void rfkill_switch_all(const enum rfkill_type type, bool blocked);
 void rfkill_epo(void);
 void rfkill_restore_states(void);
 void rfkill_remove_epo_lock(void);
 bool rfkill_is_epo_lock_active(void);
-enum rfkill_state rfkill_get_global_state(const enum rfkill_type type);
+bool rfkill_get_global_sw_state(const enum rfkill_type type);
+
+/* input handler */
+int rfkill_handler_init(void);
+void rfkill_handler_exit(void);
 
 #endif /* __RFKILL_INPUT_H */