Release 4.11 net/rfkill/core.c

/*
 * 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, see <http://www.gnu.org/licenses/>.
 */

#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/sched.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/miscdevice.h>
#include <linux/wait.h>
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/slab.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;

	
enum rfkill_type	type;

	
unsigned long		state;

	
u32			idx;

	
bool			registered;
	
bool			persistent;
	
bool			polling_paused;
	
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;
	
char			name[];
};

#define to_rfkill(d)	container_of(d, struct rfkill, dev)


struct rfkill_int_event {
	
struct list_head	list;
	
struct rfkill_event	ev;
};


struct rfkill_data {
	
struct list_head	list;
	
struct list_head	events;
	
struct mutex		mtx;
	
wait_queue_head_t	read_wait;
	
bool			input_handler;
};


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 LIST_HEAD(rfkill_fds);	/* list of open fds of /dev/rfkill */


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, sav;
} 
rfkill_global_states[NUM_RFKILL_TYPES];


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);
}

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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);
}

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const char *rfkill_get_led_trigger_name(struct rfkill *rfkill)
{
	return rfkill->led_trigger.name;
}
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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;
}
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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);
}

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static void rfkill_led_trigger_unregister(struct rfkill *rfkill)
{
	led_trigger_unregister(&rfkill->led_trigger);
}

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static struct led_trigger rfkill_any_led_trigger;

static struct work_struct rfkill_any_work;



static void rfkill_any_led_trigger_worker(struct work_struct *work)
{
	enum led_brightness brightness = LED_OFF;
	struct rfkill *rfkill;

	mutex_lock(&rfkill_global_mutex);
	list_for_each_entry(rfkill, &rfkill_list, node) {
		if (!(rfkill->state & RFKILL_BLOCK_ANY)) {
			brightness = LED_FULL;
			break;
		}
	}
	mutex_unlock(&rfkill_global_mutex);

	led_trigger_event(&rfkill_any_led_trigger, brightness);
}

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static void rfkill_any_led_trigger_event(void)
{
	schedule_work(&rfkill_any_work);
}

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static void rfkill_any_led_trigger_activate(struct led_classdev *led_cdev)
{
	rfkill_any_led_trigger_event();
}

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static int rfkill_any_led_trigger_register(void)
{
	INIT_WORK(&rfkill_any_work, rfkill_any_led_trigger_worker);
	rfkill_any_led_trigger.name = "rfkill-any";
	rfkill_any_led_trigger.activate = rfkill_any_led_trigger_activate;
	return led_trigger_register(&rfkill_any_led_trigger);
}

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static void rfkill_any_led_trigger_unregister(void)
{
	led_trigger_unregister(&rfkill_any_led_trigger);
	cancel_work_sync(&rfkill_any_work);
}
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#else


static void rfkill_led_trigger_event(struct rfkill *rfkill)
{
}

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static inline int rfkill_led_trigger_register(struct rfkill *rfkill)
{
	return 0;
}

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static inline void rfkill_led_trigger_unregister(struct rfkill *rfkill)
{
}

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static void rfkill_any_led_trigger_event(void)
{
}

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static int rfkill_any_led_trigger_register(void)
{
	return 0;
}

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static void rfkill_any_led_trigger_unregister(void)
{
}
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#endif /* CONFIG_RFKILL_LEDS */



static void rfkill_fill_event(struct rfkill_event *ev, struct rfkill *rfkill,
			      enum rfkill_operation op)
{
	unsigned long flags;

	ev->idx = rfkill->idx;
	ev->type = rfkill->type;
	ev->op = op;

	spin_lock_irqsave(&rfkill->lock, flags);
	ev->hard = !!(rfkill->state & RFKILL_BLOCK_HW);
	ev->soft = !!(rfkill->state & (RFKILL_BLOCK_SW |
					RFKILL_BLOCK_SW_PREV));
	spin_unlock_irqrestore(&rfkill->lock, flags);
}

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static void rfkill_send_events(struct rfkill *rfkill, enum rfkill_operation op)
{
	struct rfkill_data *data;
	struct rfkill_int_event *ev;

	list_for_each_entry(data, &rfkill_fds, list) {
		ev = kzalloc(sizeof(*ev), GFP_KERNEL);
		if (!ev)
			continue;
		rfkill_fill_event(&ev->ev, rfkill, op);
		mutex_lock(&data->mtx);
		list_add_tail(&ev->list, &data->events);
		mutex_unlock(&data->mtx);
		wake_up_interruptible(&data->read_wait);
	}
}

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static void rfkill_event(struct rfkill *rfkill)
{
	if (!rfkill->registered)
		return;

	kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);

	/* also send event to /dev/rfkill */
	rfkill_send_events(rfkill, RFKILL_OP_CHANGE);
}

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/**
 * 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;
	bool prev, curr;
	int err;

	if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
		return;

	/*
         * 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);
	prev = rfkill->state & RFKILL_BLOCK_SW;

	if (prev)
		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);

	err = rfkill->ops->set_block(rfkill->data, blocked);

	spin_lock_irqsave(&rfkill->lock, flags);
	if (err) {
		/*
                 * Failed -- reset status to _PREV, which may be different
                 * from what we have 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;
	curr = rfkill->state & RFKILL_BLOCK_SW;
	spin_unlock_irqrestore(&rfkill->lock, flags);

	rfkill_led_trigger_event(rfkill);
	rfkill_any_led_trigger_event();

	if (prev != curr)
		rfkill_event(rfkill);
}

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static void rfkill_update_global_state(enum rfkill_type type, bool blocked)
{
	int i;

	if (type != RFKILL_TYPE_ALL) {
		rfkill_global_states[type].cur = blocked;
		return;
	}

	for (i = 0; i < NUM_RFKILL_TYPES; i++)
		rfkill_global_states[i].cur = blocked;
}

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#ifdef CONFIG_RFKILL_INPUT

static atomic_t rfkill_input_disabled = ATOMIC_INIT(0);

/**
 * __rfkill_switch_all - Toggle state of all switches of given type
 * @type: type of interfaces to be affected
 * @blocked: the new state
 *
 * This function sets the state of all switches of given type,
 * unless a specific switch is suspended.
 *
 * Caller must have acquired rfkill_global_mutex.
 */


static void __rfkill_switch_all(const enum rfkill_type type, bool blocked)
{
	struct rfkill *rfkill;

	rfkill_update_global_state(type, blocked);
	list_for_each_entry(rfkill, &rfkill_list, node) {
		if (rfkill->type != type && type != RFKILL_TYPE_ALL)
			continue;

		rfkill_set_block(rfkill, blocked);
	}
}

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/**
 * rfkill_switch_all - Toggle state of all switches of given type
 * @type: type of interfaces to be affected
 * @blocked: 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)
{
	if (atomic_read(&rfkill_input_disabled))
		return;

	mutex_lock(&rfkill_global_mutex);

	if (!rfkill_epo_lock_active)
		__rfkill_switch_all(type, blocked);

	mutex_unlock(&rfkill_global_mutex);
}

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/**
 * 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;

	if (atomic_read(&rfkill_input_disabled))
		return;

	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].sav = rfkill_global_states[i].cur;
		rfkill_global_states[i].cur = true;
	}

	mutex_unlock(&rfkill_global_mutex);
}

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/**
 * 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;

	if (atomic_read(&rfkill_input_disabled))
		return;

	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].sav);
	mutex_unlock(&rfkill_global_mutex);
}

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/**
 * 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)
{
	if (atomic_read(&rfkill_input_disabled))
		return;

	mutex_lock(&rfkill_global_mutex);
	rfkill_epo_lock_active = false;
	mutex_unlock(&rfkill_global_mutex);
}

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/**
 * 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;
}

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/**
 * 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;
}
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#endif



bool rfkill_set_hw_state(struct rfkill *rfkill, bool blocked)
{
	unsigned long flags;
	bool ret, prev;

	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;
	ret = !!(rfkill->state & RFKILL_BLOCK_ANY);
	spin_unlock_irqrestore(&rfkill->lock, flags);

	rfkill_led_trigger_event(rfkill);
	rfkill_any_led_trigger_event();

	if (rfkill->registered && prev != blocked)
		schedule_work(&rfkill->uevent_work);

	return ret;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
João Paulo Rechi Vita
72
60.50%
1
20.00%
Johannes Berg
30
25.21%
2
40.00%
Henrique de Moraes Holschuh
14
11.76%
1
20.00%
Michał Kępień
3
2.52%
1
20.00%
Total
119
100.00%
5
100.00%


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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
46
92.00%
1
50.00%
Henrique de Moraes Holschuh
4
8.00%
1
50.00%
Total
50
100.00%
2
100.00%



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);
	rfkill_any_led_trigger_event();

	return blocked;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
98
79.67%
1
20.00%
Henrique de Moraes Holschuh
19
15.45%
2
40.00%
Michał Kępień
3
2.44%
1
20.00%
Alan Jenkins
3
2.44%
1
20.00%
Total
123
100.00%
5
100.00%


EXPORT_SYMBOL(rfkill_set_sw_state);



void rfkill_init_sw_state(struct rfkill *rfkill, bool blocked)
{
	unsigned long flags;

	BUG_ON(!rfkill);
	BUG_ON(rfkill->registered);

	spin_lock_irqsave(&rfkill->lock, flags);
	__rfkill_set_sw_state(rfkill, blocked);
	rfkill->persistent = true;
	spin_unlock_irqrestore(&rfkill->lock, flags);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Alan Jenkins
63
100.00%
1
100.00%
Total
63
100.00%
1
100.00%


EXPORT_SYMBOL(rfkill_init_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);
	if (hw)
		rfkill->state |= RFKILL_BLOCK_HW;
	else
		rfkill->state &= ~RFKILL_BLOCK_HW;

	spin_unlock_irqrestore(&rfkill->lock, flags);

	if (!rfkill->registered) {
		rfkill->persistent = true;
	} else {
		if (swprev != sw || hwprev != hw)
			schedule_work(&rfkill->uevent_work);

		rfkill_led_trigger_event(rfkill);
		rfkill_any_led_trigger_event();
	}
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
67
46.21%
1
12.50%
Henrique de Moraes Holschuh
41
28.28%
3
37.50%
Alan Jenkins
29
20.00%
2
25.00%
Larry Finger
5
3.45%
1
12.50%
Michał Kępień
3
2.07%
1
12.50%
Total
145
100.00%
8
100.00%


EXPORT_SYMBOL(rfkill_set_states);


static const char * const rfkill_types[] = {
	NULL, /* RFKILL_TYPE_ALL */
	"wlan",
	"bluetooth",
	"ultrawideband",
	"wimax",
	"wwan",
	"gps",
	"fm",
	"nfc",
};



enum rfkill_type rfkill_find_type(const char *name)
{
	int i;

	BUILD_BUG_ON(ARRAY_SIZE(rfkill_types) != NUM_RFKILL_TYPES);

	if (!name)
		return RFKILL_TYPE_ALL;

	for (i = 1; i < NUM_RFKILL_TYPES; i++)
		if (!strcmp(name, rfkill_types[i]))
			return i;
	return RFKILL_TYPE_ALL;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Heikki Krogerus
62
96.88%
1
33.33%
Larry Finger
1
1.56%
1
33.33%
Alan Jenkins
1
1.56%
1
33.33%
Total
64
100.00%
3
100.00%


EXPORT_SYMBOL(rfkill_find_type);



static ssize_t name_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct rfkill *rfkill = to_rfkill(dev);

	return sprintf(buf, "%s\n", rfkill->name);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
41
97.62%
1
50.00%
Greg Kroah-Hartman
1
2.38%
1
50.00%
Total
42
100.00%
2
100.00%

static DEVICE_ATTR_RO(name);



static ssize_t type_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct rfkill *rfkill = to_rfkill(dev);

	return sprintf(buf, "%s\n", rfkill_types[rfkill->type]);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Henrique de Moraes Holschuh
31
68.89%
1
25.00%
Ivo van Doorn
10
22.22%
1
25.00%
Heikki Krogerus
3
6.67%
1
25.00%
Greg Kroah-Hartman
1
2.22%
1
25.00%
Total
45
100.00%
4
100.00%

static DEVICE_ATTR_RO(type);



static ssize_t index_show(struct device *dev, struct device_attribute *attr,
			  char *buf)
{
	struct rfkill *rfkill = to_rfkill(dev);

	return sprintf(buf, "%d\n", rfkill->idx);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
41
97.62%
1
50.00%
Greg Kroah-Hartman
1
2.38%
1
50.00%
Total
42
100.00%
2
100.00%

static DEVICE_ATTR_RO(index);



static ssize_t persistent_show(struct device *dev,
			       struct device_attribute *attr, char *buf)
{
	struct rfkill *rfkill = to_rfkill(dev);

	return sprintf(buf, "%d\n", rfkill->persistent);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Alan Jenkins
41
97.62%
1
50.00%
Greg Kroah-Hartman
1
2.38%
1
50.00%
Total
42
100.00%
2
100.00%

static DEVICE_ATTR_RO(persistent);



static ssize_t hard_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct rfkill *rfkill = to_rfkill(dev);

	return sprintf(buf, "%d\n", (rfkill->state & RFKILL_BLOCK_HW) ? 1 : 0 );
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Florian Mickler
49
98.00%
2
66.67%
Greg Kroah-Hartman
1
2.00%
1
33.33%
Total
50
100.00%
3
100.00%

static DEVICE_ATTR_RO(hard);



static ssize_t soft_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct rfkill *rfkill = to_rfkill(dev);

	return sprintf(buf, "%d\n", (rfkill->state & RFKILL_BLOCK_SW) ? 1 : 0 );
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Florian Mickler
49
98.00%
2
66.67%
Greg Kroah-Hartman
1
2.00%
1
33.33%
Total
50
100.00%
3
100.00%



static ssize_t soft_store(struct device *dev, struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct rfkill *rfkill = to_rfkill(dev);
	unsigned long state;
	int err;

	if (!capable(CAP_NET_ADMIN))
		return -EPERM;

	err = kstrtoul(buf, 0, &state);
	if (err)
		return err;

	if (state > 1 )
		return -EINVAL;

	mutex_lock(&rfkill_global_mutex);
	rfkill_set_block(rfkill, state);
	mutex_unlock(&rfkill_global_mutex);

	return count;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Florian Mickler
102
98.08%
1
33.33%
Julia Lawall
1
0.96%
1
33.33%
Greg Kroah-Hartman
1
0.96%
1
33.33%
Total
104
100.00%
3
100.00%

static DEVICE_ATTR_RW(soft);



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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
23
74.19%
1
50.00%
Ivo van Doorn
8
25.81%
1
50.00%
Total
31
100.00%
2
100.00%



static ssize_t state_show(struct device *dev, struct device_attribute *attr,
			  char *buf)
{
	struct rfkill *rfkill = to_rfkill(dev);

	return sprintf(buf, "%d\n", user_state_from_blocked(rfkill->state));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
23
51.11%
1
25.00%
Johannes Berg
19
42.22%
1
25.00%
Florian Mickler
2
4.44%
1
25.00%
Greg Kroah-Hartman
1
2.22%
1
25.00%
Total
45
100.00%
4
100.00%



static ssize_t 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 err;

	if (!capable(CAP_NET_ADMIN))
		return -EPERM;

	err = kstrtoul(buf, 0, &state);
	if (err)
		return err;

	if (state != RFKILL_USER_STATE_SOFT_BLOCKED &&
	    state != RFKILL_USER_STATE_UNBLOCKED)
		return -EINVAL;

	mutex_lock(&rfkill_global_mutex);
	rfkill_set_block(rfkill, state == RFKILL_USER_STATE_SOFT_BLOCKED);
	mutex_unlock(&rfkill_global_mutex);

	return count;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
105
95.45%
2
40.00%
Ivo van Doorn
3
2.73%
1
20.00%
Julia Lawall
1
0.91%
1
20.00%
Greg Kroah-Hartman
1
0.91%
1
20.00%
Total
110
100.00%
5
100.00%

static DEVICE_ATTR_RW(state);


static struct attribute *rfkill_dev_attrs[] = {
	&dev_attr_name.attr,
	&dev_attr_type.attr,
	&dev_attr_index.attr,
	&dev_attr_persistent.attr,
	&dev_attr_state.attr,
	&dev_attr_soft.attr,
	&dev_attr_hard.attr,
	NULL,
};

ATTRIBUTE_GROUPS(rfkill_dev);



static void rfkill_release(struct device *dev)
{
	struct rfkill *rfkill = to_rfkill(dev);

	kfree(rfkill);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
26
100.00%
1
100.00%
Total
26
100.00%
1
100.00%



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_types[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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Henrique de Moraes Holschuh
83
68.03%
1
33.33%
Johannes Berg
36
29.51%
1
33.33%
Heikki Krogerus
3
2.46%
1
33.33%
Total
122
100.00%
3
100.00%



void rfkill_pause_polling(struct rfkill *rfkill)
{
	BUG_ON(!rfkill);

	if (!rfkill->ops->poll)
		return;

	rfkill->polling_paused = true;
	cancel_delayed_work_sync(&rfkill->poll_work);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
21
52.50%
2
50.00%
Henrique de Moraes Holschuh
19
47.50%
2
50.00%
Total
40
100.00%
4
100.00%


EXPORT_SYMBOL(rfkill_pause_polling);



void rfkill_resume_polling(struct rfkill *rfkill)
{
	BUG_ON(!rfkill);

	if (!rfkill->ops->poll)
		return;

	rfkill->polling_paused = false;

	if (rfkill->suspended)
		return;

	queue_delayed_work(system_power_efficient_wq,
			   &rfkill->poll_work, 0);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
25
49.02%
2
33.33%
Henrique de Moraes Holschuh
14
27.45%
2
33.33%
Ivo van Doorn
7
13.73%
1
16.67%
Shaibal Dutta
5
9.80%
1
16.67%
Total
51
100.00%
6
100.00%


EXPORT_SYMBOL(rfkill_resume_polling);

#ifdef CONFIG_PM_SLEEP


static int rfkill_suspend(struct device *dev)
{
	struct rfkill *rfkill = to_rfkill(dev);

	rfkill->suspended = true;
	cancel_delayed_work_sync(&rfkill->poll_work);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
32
84.21%
2
66.67%
Ivo van Doorn
6
15.79%
1
33.33%
Total
38
100.00%
3
100.00%



static int rfkill_resume(struct device *dev)
{
	struct rfkill *rfkill = to_rfkill(dev);
	bool cur;

	rfkill->suspended = false;

	if (!rfkill->persistent) {
		cur = !!(rfkill->state & RFKILL_BLOCK_SW);
		rfkill_set_block(rfkill, cur);
	}

	if (rfkill->ops->poll && !rfkill->polling_paused)
		queue_delayed_work(system_power_efficient_wq,
				   &rfkill->poll_work, 0);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
55
63.95%
2
33.33%
Alan Jenkins
16
18.60%
2
33.33%
Ivo van Doorn
14
16.28%
1
16.67%
Henrique de Moraes Holschuh
1
1.16%
1
16.67%
Total
86
100.00%
6
100.00%

static SIMPLE_DEV_PM_OPS(rfkill_pm_ops, rfkill_suspend, rfkill_resume);

#define RFKILL_PM_OPS (&rfkill_pm_ops)
#else

#define RFKILL_PM_OPS NULL
#endif


static struct class rfkill_class = {
	.name		= "rfkill",
	.dev_release	= rfkill_release,
	.dev_groups	= rfkill_dev_groups,
	.dev_uevent	= rfkill_dev_uevent,
	.pm		= RFKILL_PM_OPS,
};



bool rfkill_blocked(struct rfkill *rfkill)
{
	unsigned long flags;
	u32 state;

	spin_lock_irqsave(&rfkill->lock, flags);
	state = rfkill->state;
	spin_unlock_irqrestore(&rfkill->lock, flags);

	return !!(state & RFKILL_BLOCK_ANY);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
52
100.00%
1
100.00%
Total
52
100.00%
1
100.00%


EXPORT_SYMBOL(rfkill_blocked);




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 == RFKILL_TYPE_ALL || type >= NUM_RFKILL_TYPES))
		return NULL;

	rfkill = kzalloc(sizeof(*rfkill) + strlen(name) + 1, GFP_KERNEL);
	if (!rfkill)
		return NULL;

	spin_lock_init(&rfkill->lock);
	INIT_LIST_HEAD(&rfkill->node);
	rfkill->type = type;
	strcpy(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;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
93
48.19%
2
28.57%
Johannes Berg
89
46.11%
3
42.86%
Henrique de Moraes Holschuh
11
5.70%
2
28.57%
Total
193
100.00%
7
100.00%


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);

	queue_delayed_work(system_power_efficient_wq,
		&rfkill->poll_work,
		round_jiffies_relative(POLL_INTERVAL));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
29
49.15%
1
14.29%
Michael Büsch
14
23.73%
1
14.29%
Ivo van Doorn
6
10.17%
1
14.29%
Dmitry Baryshkov
5
8.47%
2
28.57%
Shaibal Dutta
3
5.08%
1
14.29%
Kay Sievers
2
3.39%
1
14.29%
Total
59
100.00%
7
100.00%



static void rfkill_uevent_work(struct work_struct *work)
{
	struct rfkill *rfkill;

	rfkill = container_of(work, struct rfkill, uevent_work);

	mutex_lock(&rfkill_global_mutex);
	rfkill_event(rfkill);
	mutex_unlock(&rfkill_global_mutex);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
41
91.11%
2
66.67%
Michael Büsch
4
8.89%
1
33.33%
Total
45
100.00%
3
100.00%



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);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
44
72.13%
1
33.33%
Michael Büsch
13
21.31%
1
33.33%
Henrique de Moraes Holschuh
4
6.56%
1
33.33%
Total
61
100.00%
3
100.00%



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;
	}

	rfkill->idx = rfkill_no;
	dev_set_name(dev, "rfkill%lu", rfkill_no);
	rfkill_no++;

	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;

	INIT_DELAYED_WORK(&rfkill->poll_work, rfkill_poll);
	INIT_WORK(&rfkill->uevent_work, rfkill_uevent_work);
	INIT_WORK(&rfkill->sync_work, rfkill_sync_work);

	if (rfkill->ops->poll)
		queue_delayed_work(system_power_efficient_wq,
			&rfkill->poll_work,
			round_jiffies_relative(POLL_INTERVAL));

	if (!rfkill->persistent || rfkill_epo_lock_active) {
		schedule_work(&rfkill->sync_work);
	} else {
#ifdef CONFIG_RFKILL_INPUT
		bool soft_blocked = !!(rfkill->state & RFKILL_BLOCK_SW);

		if (!atomic_read(&rfkill_input_disabled))
			__rfkill_switch_all(rfkill->type, soft_blocked);
#endif
	}

	rfkill_any_led_trigger_event();
	rfkill_send_events(rfkill, RFKILL_OP_ADD);

	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;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
158
56.23%
3
27.27%
Alan Jenkins
50
17.79%
1
9.09%
Ivo van Doorn
46
16.37%
1
9.09%
Michael Büsch
10
3.56%
1
9.09%
Eric Paris
7
2.49%
1
9.09%
Henrique de Moraes Holschuh
4
1.42%
2
18.18%
Shaibal Dutta
3
1.07%
1
9.09%
Michał Kępień
3
1.07%
1
9.09%
Total
281
100.00%
11
100.00%


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);
	rfkill_send_events(rfkill, RFKILL_OP_DEL);
	list_del_init(&rfkill->node);
	rfkill_any_led_trigger_event();
	mutex_unlock(&rfkill_global_mutex);

	rfkill_led_trigger_unregister(rfkill);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
57
58.76%
2
33.33%
Ivo van Doorn
27
27.84%
1
16.67%
Henrique de Moraes Holschuh
6
6.19%
1
16.67%
Michael Büsch
4
4.12%
1
16.67%
Michał Kępień
3
3.09%
1
16.67%
Total
97
100.00%
6
100.00%


EXPORT_SYMBOL(rfkill_unregister);



void rfkill_destroy(struct rfkill *rfkill)
{
	if (rfkill)
		put_device(&rfkill->dev);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Henrique de Moraes Holschuh
11
50.00%
1
50.00%
Johannes Berg
11
50.00%
1
50.00%
Total
22
100.00%
2
100.00%


EXPORT_SYMBOL(rfkill_destroy);



static int rfkill_fop_open(struct inode *inode, struct file *file)
{
	struct rfkill_data *data;
	struct rfkill *rfkill;
	struct rfkill_int_event *ev, *tmp;

	data = kzalloc(sizeof(*data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	INIT_LIST_HEAD(&data->events);
	mutex_init(&data->mtx);
	init_waitqueue_head(&data->read_wait);

	mutex_lock(&rfkill_global_mutex);
	mutex_lock(&data->mtx);
	/*
         * start getting events from elsewhere but hold mtx to get
         * startup events added first
         */

	list_for_each_entry(rfkill, &rfkill_list, node) {
		ev = kzalloc(sizeof(*ev), GFP_KERNEL);
		if (!ev)
			goto free;
		rfkill_fill_event(&ev->ev, rfkill, RFKILL_OP_ADD);
		list_add_tail(&ev->list, &data->events);
	}
	list_add(&data->list, &rfkill_fds);
	mutex_unlock(&data->mtx);
	mutex_unlock(&rfkill_global_mutex);

	file->private_data = data;

	return nonseekable_open(inode, file);

 free:
	mutex_unlock(&data->mtx);
	mutex_unlock(&rfkill_global_mutex);
	mutex_destroy(&data->mtx);
	list_for_each_entry_safe(ev, tmp, &data->events, list)
		kfree(ev);
	kfree(data);
	return -ENOMEM;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
208
87.39%
2
50.00%
Ivo van Doorn
19
7.98%
1
25.00%
Julia Lawall
11
4.62%
1
25.00%
Total
238
100.00%
4
100.00%



static unsigned int rfkill_fop_poll(struct file *file, poll_table *wait)
{
	struct rfkill_data *data = file->private_data;
	unsigned int res = POLLOUT | POLLWRNORM;

	poll_wait(file, &data->read_wait, wait);

	mutex_lock(&data->mtx);
	if (!list_empty(&data->events))
		res = POLLIN | POLLRDNORM;
	mutex_unlock(&data->mtx);

	return res;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
81
100.00%
1
100.00%
Total
81
100.00%
1
100.00%



static ssize_t rfkill_fop_read(struct file *file, char __user *buf,
			       size_t count, loff_t *pos)
{
	struct rfkill_data *data = file->private_data;
	struct rfkill_int_event *ev;
	unsigned long sz;
	int ret;

	mutex_lock(&data->mtx);

	while (list_empty(&data->events)) {
		if (file->f_flags & O_NONBLOCK) {
			ret = -EAGAIN;
			goto out;
		}
		mutex_unlock(&data->mtx);
		/* since we re-check and it just compares pointers,
                 * using !list_empty() without locking isn't a problem
                 */
		ret = wait_event_interruptible(data->read_wait,
					       !list_empty(&data->events));
		mutex_lock(&data->mtx);

		if (ret)
			goto out;
	}

	ev = list_first_entry(&data->events, struct rfkill_int_event,
				list);

	sz = min_t(unsigned long, sizeof(ev->ev), count);
	ret = sz;
	if (copy_to_user(buf, &ev->ev, sz))
		ret = -EFAULT;

	list_del(&ev->list);
	kfree(ev);
 out:
	mutex_unlock(&data->mtx);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
199
100.00%
2
100.00%
Total
199
100.00%
2
100.00%



static ssize_t rfkill_fop_write(struct file *file, const char __user *buf,
				size_t count, loff_t *pos)
{
	struct rfkill *rfkill;
	struct rfkill_event ev;
	int ret;

	/* we don't need the 'hard' variable but accept it */
	if (count < RFKILL_EVENT_SIZE_V1 - 1)
		return -EINVAL;

	/*
         * Copy as much data as we can accept into our 'ev' buffer,
         * but tell userspace how much we've copied so it can determine
         * our API version even in a write() call, if it cares.
         */
	count = min(count, sizeof(ev));
	if (copy_from_user(&ev, buf, count))
		return -EFAULT;

	if (ev.type >= NUM_RFKILL_TYPES)
		return -EINVAL;

	mutex_lock(&rfkill_global_mutex);

	switch (ev.op) {
	case RFKILL_OP_CHANGE_ALL:
		rfkill_update_global_state(ev.type, ev.soft);
		list_for_each_entry(rfkill, &rfkill_list, node)
			if (rfkill->type == ev.type ||
			    ev.type == RFKILL_TYPE_ALL)
				rfkill_set_block(rfkill, ev.soft);
		ret = 0;
		break;
	case RFKILL_OP_CHANGE:
		list_for_each_entry(rfkill, &rfkill_list, node)
			if (rfkill->idx == ev.idx &&
			    (rfkill->type == ev.type ||
			     ev.type == RFKILL_TYPE_ALL))
				rfkill_set_block(rfkill, ev.soft);
		ret = 0;
		break;
	default:
		ret = -EINVAL;
		break;
	}

	mutex_unlock(&rfkill_global_mutex);

	return ret ?: count;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
154
68.14%
2
50.00%
João Paulo Rechi Vita
72
31.86%
2
50.00%
Total
226
100.00%
4
100.00%



static int rfkill_fop_release(struct inode *inode, struct file *file)
{
	struct rfkill_data *data = file->private_data;
	struct rfkill_int_event *ev, *tmp;

	mutex_lock(&rfkill_global_mutex);
	list_del(&data->list);
	mutex_unlock(&rfkill_global_mutex);

	mutex_destroy(&data->mtx);
	list_for_each_entry_safe(ev, tmp, &data->events, list)
		kfree(ev);

#ifdef CONFIG_RFKILL_INPUT
	if (data->input_handler)
		if (atomic_dec_return(&rfkill_input_disabled) == 0)
			printk(KERN_DEBUG "rfkill: input handler enabled\n");
#endif

	kfree(data);

	return 0;
}

Contributors
Person
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CommitProp
Johannes Berg
111
100.00%
2
100.00%
Total
111
100.00%
2
100.00%

#ifdef CONFIG_RFKILL_INPUT


static long rfkill_fop_ioctl(struct file *file, unsigned int cmd,
			     unsigned long arg)
{
	struct rfkill_data *data = file->private_data;

	if (_IOC_TYPE(cmd) != RFKILL_IOC_MAGIC)
		return -ENOSYS;

	if (_IOC_NR(cmd) != RFKILL_IOC_NOINPUT)
		return -ENOSYS;

	mutex_lock(&data->mtx);

	if (!data->input_handler) {
		if (atomic_inc_return(&rfkill_input_disabled) == 1)
			printk(KERN_DEBUG "rfkill: input handler disabled\n");
		data->input_handler = true;
	}

	mutex_unlock(&data->mtx);

	return 0;
}
Contributors
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CommitProp
Johannes Berg
104
100.00%
2
100.00%
Total
104
100.00%
2
100.00%

#endif


static const struct file_operations rfkill_fops = {
	.owner		= THIS_MODULE,
	.open		= rfkill_fop_open,
	.read		= rfkill_fop_read,
	.write		= rfkill_fop_write,
	.poll		= rfkill_fop_poll,
	.release	= rfkill_fop_release,
#ifdef CONFIG_RFKILL_INPUT
	.unlocked_ioctl	= rfkill_fop_ioctl,
	.compat_ioctl	= rfkill_fop_ioctl,
#endif
	.llseek		= no_llseek,
};


static struct miscdevice rfkill_miscdev = {
	.name	= "rfkill",
	.fops	= &rfkill_fops,
	.minor	= MISC_DYNAMIC_MINOR,
};



static int __init rfkill_init(void)
{
	int error;

	rfkill_update_global_state(RFKILL_TYPE_ALL, !rfkill_default_state);

	error = class_register(&rfkill_class);
	if (error)
		goto error_class;

	error = misc_register(&rfkill_miscdev);
	if (error)
		goto error_misc;

	error = rfkill_any_led_trigger_register();
	if (error)
		goto error_led_trigger;

#ifdef CONFIG_RFKILL_INPUT
	error = rfkill_handler_init();
	if (error)
		goto error_input;
#endif

	return 0;

#ifdef CONFIG_RFKILL_INPUT
error_input:
	rfkill_any_led_trigger_unregister();
#endif
error_led_trigger:
	misc_deregister(&rfkill_miscdev);
error_misc:
	class_unregister(&rfkill_class);
error_class:
	return error;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
67
59.29%
2
28.57%
Michał Kępień
34
30.09%
2
28.57%
João Paulo Rechi Vita
5
4.42%
1
14.29%
Ivo van Doorn
4
3.54%
1
14.29%
Arnd Bergmann
3
2.65%
1
14.29%
Total
113
100.00%
7
100.00%


subsys_initcall(rfkill_init);



static void __exit rfkill_exit(void)
{
#ifdef CONFIG_RFKILL_INPUT
	rfkill_handler_exit();
#endif
	rfkill_any_led_trigger_unregister();
	misc_deregister(&rfkill_miscdev);
	class_unregister(&rfkill_class);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
15
46.88%
1
25.00%
Johannes Berg
14
43.75%
2
50.00%
Michał Kępień
3
9.38%
1
25.00%
Total
32
100.00%
4
100.00%


module_exit(rfkill_exit);
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
3004
56.31%
12
16.22%
Ivo van Doorn
498
9.33%
2
2.70%
Henrique de Moraes Holschuh
429
8.04%
18
24.32%
Michał Kępień
243
4.55%
2
2.70%
Alan Jenkins
233
4.37%
6
8.11%
João Paulo Rechi Vita
230
4.31%
6
8.11%
Florian Mickler
204
3.82%
2
2.70%
Heikki Krogerus
98
1.84%
1
1.35%
Greg Kroah-Hartman
90
1.69%
1
1.35%
Michael Büsch
84
1.57%
3
4.05%
AceLan Kao
56
1.05%
1
1.35%
Dmitry Baryshkov
35
0.66%
2
2.70%
Vitaly Wool
27
0.51%
1
1.35%
Lars-Peter Clausen
27
0.51%
1
1.35%
Larry Finger
16
0.30%
1
1.35%
Julia Lawall
13
0.24%
2
2.70%
Shaibal Dutta
11
0.21%
1
1.35%
Arnd Bergmann
8
0.15%
2
2.70%
Eric Paris
7
0.13%
1
1.35%
Alex Hung
4
0.07%
1
1.35%
Carlos Corbacho
4
0.07%
1
1.35%
Alexey Dobriyan
3
0.06%
1
1.35%
Paul Gortmaker
3
0.06%
1
1.35%
Simon Holm Thögersen
3
0.06%
1
1.35%
Kay Sievers
2
0.04%
1
1.35%
Fabian Frederick
1
0.02%
1
1.35%
Tejun Heo
1
0.02%
1
1.35%
Jeff Kirsher
1
0.02%
1
1.35%
Total
5335
100.00%
74
100.00%
Directory: net/rfkill

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