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>

MAINTAINERS

@@ -4753,9 +4753,9 @@ S:	Supported
 F:	fs/reiserfs/
 
 RFKILL
-P:	Ivo van Doorn
-M:	IvDoorn@gmail.com
-L:	netdev@vger.kernel.org
+P:	Johannes Berg
+M:	johannes@sipsolutions.net
+L:	linux-wireless@vger.kernel.org
 S:	Maintained
 F	Documentation/rfkill.txt
 F:	net/rfkill/

arch/arm/mach-pxa/tosa-bt.c

@@ -35,21 +35,25 @@ static void tosa_bt_off(struct tosa_bt_data *data)
 	gpio_set_value(data->gpio_reset, 0);
 }
 
-static int tosa_bt_toggle_radio(void *data, enum rfkill_state state)
+static int tosa_bt_set_block(void *data, bool blocked)
 {
-	pr_info("BT_RADIO going: %s\n",
-			state == RFKILL_STATE_UNBLOCKED ? "on" : "off");
+	pr_info("BT_RADIO going: %s\n", blocked ? "off" : "on");
 
-	if (state == RFKILL_STATE_UNBLOCKED) {
+	if (!blocked) {
 		pr_info("TOSA_BT: going ON\n");
 		tosa_bt_on(data);
 	} else {
 		pr_info("TOSA_BT: going OFF\n");
 		tosa_bt_off(data);
 	}
+
 	return 0;
 }
 
+static const struct rfkill_ops tosa_bt_rfkill_ops = {
+	.set_block = tosa_bt_set_block,
+};
+
 static int tosa_bt_probe(struct platform_device *dev)
 {
 	int rc;
@@ -70,18 +74,14 @@ static int tosa_bt_probe(struct platform_device *dev)
 	if (rc)
 		goto err_pwr_dir;
 
-	rfk = rfkill_allocate(&dev->dev, RFKILL_TYPE_BLUETOOTH);
+	rfk = rfkill_alloc("tosa-bt", &dev->dev, RFKILL_TYPE_BLUETOOTH,
+			   &tosa_bt_rfkill_ops, data);
 	if (!rfk) {
 		rc = -ENOMEM;
 		goto err_rfk_alloc;
 	}
 
-	rfk->name = "tosa-bt";
-	rfk->toggle_radio = tosa_bt_toggle_radio;
-	rfk->data = data;
-#ifdef CONFIG_RFKILL_LEDS
-	rfk->led_trigger.name = "tosa-bt";
-#endif
+	rfkill_set_led_trigger_name(rfk, "tosa-bt");
 
 	rc = rfkill_register(rfk);
 	if (rc)
@@ -92,9 +92,7 @@ static int tosa_bt_probe(struct platform_device *dev)
 	return 0;
 
 err_rfkill:
-	if (rfk)
-		rfkill_free(rfk);
-	rfk = NULL;
+	rfkill_destroy(rfk);
 err_rfk_alloc:
 	tosa_bt_off(data);
 err_pwr_dir:
@@ -113,8 +111,10 @@ static int __devexit tosa_bt_remove(struct platform_device *dev)
 
 	platform_set_drvdata(dev, NULL);
 
-	if (rfk)
+	if (rfk) {
 		rfkill_unregister(rfk);
+		rfkill_destroy(rfk);
+	}
 	rfk = NULL;
 
 	tosa_bt_off(data);

arch/arm/mach-pxa/tosa.c

@@ -31,7 +31,6 @@
 #include <linux/input.h>
 #include <linux/gpio.h>
 #include <linux/pda_power.h>
-#include <linux/rfkill.h>
 #include <linux/spi/spi.h>
 
 #include <asm/setup.h>

drivers/net/usb/hso.c

@@ -2481,10 +2481,10 @@ static int add_net_device(struct hso_device *hso_dev)
 	return 0;
 }
 
-static int hso_radio_toggle(void *data, enum rfkill_state state)
+static int hso_rfkill_set_block(void *data, bool blocked)
 {
 	struct hso_device *hso_dev = data;
-	int enabled = (state == RFKILL_STATE_UNBLOCKED);
+	int enabled = !blocked;
 	int rv;
 
 	mutex_lock(&hso_dev->mutex);
@@ -2498,6 +2498,10 @@ static int hso_radio_toggle(void *data, enum rfkill_state state)
 	return rv;
 }
 
+static const struct rfkill_ops hso_rfkill_ops = {
+	.set_block = hso_rfkill_set_block,
+};
+
 /* Creates and sets up everything for rfkill */
 static void hso_create_rfkill(struct hso_device *hso_dev,
 			     struct usb_interface *interface)
@@ -2506,29 +2510,25 @@ static void hso_create_rfkill(struct hso_device *hso_dev,
 	struct device *dev = &hso_net->net->dev;
 	char *rfkn;
 
-	hso_net->rfkill = rfkill_allocate(&interface_to_usbdev(interface)->dev,
-				 RFKILL_TYPE_WWAN);
-	if (!hso_net->rfkill) {
-		dev_err(dev, "%s - Out of memory\n", __func__);
-		return;
-	}
 	rfkn = kzalloc(20, GFP_KERNEL);
-	if (!rfkn) {
-		rfkill_free(hso_net->rfkill);
-		hso_net->rfkill = NULL;
+	if (!rfkn)
 		dev_err(dev, "%s - Out of memory\n", __func__);
-		return;
-	}
+
 	snprintf(rfkn, 20, "hso-%d",
 		 interface->altsetting->desc.bInterfaceNumber);
-	hso_net->rfkill->name = rfkn;
-	hso_net->rfkill->state = RFKILL_STATE_UNBLOCKED;
-	hso_net->rfkill->data = hso_dev;
-	hso_net->rfkill->toggle_radio = hso_radio_toggle;
+
+	hso_net->rfkill = rfkill_alloc(rfkn,
+				       &interface_to_usbdev(interface)->dev,
+				       RFKILL_TYPE_WWAN,
+				       &hso_rfkill_ops, hso_dev);
+	if (!hso_net->rfkill) {
+		dev_err(dev, "%s - Out of memory\n", __func__);
+		kfree(rfkn);
+		return;
+	}
 	if (rfkill_register(hso_net->rfkill) < 0) {
+		rfkill_destroy(hso_net->rfkill);
 		kfree(rfkn);
-		hso_net->rfkill->name = NULL;
-		rfkill_free(hso_net->rfkill);
 		hso_net->rfkill = NULL;
 		dev_err(dev, "%s - Failed to register rfkill\n", __func__);
 		return;
@@ -3165,8 +3165,10 @@ static void hso_free_interface(struct usb_interface *interface)
 			hso_stop_net_device(network_table[i]);
 			cancel_work_sync(&network_table[i]->async_put_intf);
 			cancel_work_sync(&network_table[i]->async_get_intf);
-			if (rfk)
+			if (rfk) {
 				rfkill_unregister(rfk);
+				rfkill_destroy(rfk);
+			}
 			hso_free_net_device(network_table[i]);
 		}
 	}

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -460,12 +460,9 @@ struct ath_led {
 	bool registered;
 };
 
-/* Rfkill */
-#define ATH_RFKILL_POLL_INTERVAL	2000 /* msecs */
-
 struct ath_rfkill {
 	struct rfkill *rfkill;
-	struct delayed_work rfkill_poll;
+	struct rfkill_ops ops;
 	char rfkill_name[32];
 };
 
@@ -509,8 +506,6 @@ struct ath_rfkill {
 #define SC_OP_RXFLUSH           BIT(7)
 #define SC_OP_LED_ASSOCIATED    BIT(8)
 #define SC_OP_RFKILL_REGISTERED BIT(9)
-#define SC_OP_RFKILL_SW_BLOCKED BIT(10)
-#define SC_OP_RFKILL_HW_BLOCKED BIT(11)
 #define SC_OP_WAIT_FOR_BEACON   BIT(12)
 #define SC_OP_LED_ON            BIT(13)
 #define SC_OP_SCANNING          BIT(14)

drivers/net/wireless/ath/ath9k/main.c

@@ -1192,120 +1192,69 @@ static bool ath_is_rfkill_set(struct ath_softc *sc)
 				  ah->rfkill_polarity;
 }
 
-/* h/w rfkill poll function */
-static void ath_rfkill_poll(struct work_struct *work)
-{
-	struct ath_softc *sc = container_of(work, struct ath_softc,
-					    rf_kill.rfkill_poll.work);
-	bool radio_on;
-
-	if (sc->sc_flags & SC_OP_INVALID)
-		return;
-
-	radio_on = !ath_is_rfkill_set(sc);
-
-	/*
-	 * enable/disable radio only when there is a
-	 * state change in RF switch
-	 */
-	if (radio_on == !!(sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED)) {
-		enum rfkill_state state;
-
-		if (sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED) {
-			state = radio_on ? RFKILL_STATE_SOFT_BLOCKED
-				: RFKILL_STATE_HARD_BLOCKED;
-		} else if (radio_on) {
-			ath_radio_enable(sc);
-			state = RFKILL_STATE_UNBLOCKED;
-		} else {
-			ath_radio_disable(sc);
-			state = RFKILL_STATE_HARD_BLOCKED;
-		}
-
-		if (state == RFKILL_STATE_HARD_BLOCKED)
-			sc->sc_flags |= SC_OP_RFKILL_HW_BLOCKED;
-		else
-			sc->sc_flags &= ~SC_OP_RFKILL_HW_BLOCKED;
-
-		rfkill_force_state(sc->rf_kill.rfkill, state);
-	}
-
-	queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll,
-			   msecs_to_jiffies(ATH_RFKILL_POLL_INTERVAL));
-}
-
-/* s/w rfkill handler */
-static int ath_sw_toggle_radio(void *data, enum rfkill_state state)
+/* s/w rfkill handlers */
+static int ath_rfkill_set_block(void *data, bool blocked)
 {
 	struct ath_softc *sc = data;
 
-	switch (state) {
-	case RFKILL_STATE_SOFT_BLOCKED:
-		if (!(sc->sc_flags & (SC_OP_RFKILL_HW_BLOCKED |
-		    SC_OP_RFKILL_SW_BLOCKED)))
-			ath_radio_disable(sc);
-		sc->sc_flags |= SC_OP_RFKILL_SW_BLOCKED;
-		return 0;
-	case RFKILL_STATE_UNBLOCKED:
-		if ((sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED)) {
-			sc->sc_flags &= ~SC_OP_RFKILL_SW_BLOCKED;
-			if (sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED) {
-				DPRINTF(sc, ATH_DBG_FATAL, "Can't turn on the"
-					"radio as it is disabled by h/w\n");
-				return -EPERM;
-			}
-			ath_radio_enable(sc);
-		}
-		return 0;
-	default:
-		return -EINVAL;
-	}
+	if (blocked)
+		ath_radio_disable(sc);
+	else
+		ath_radio_enable(sc);
+
+	return 0;
+}
+
+static void ath_rfkill_poll_state(struct rfkill *rfkill, void *data)
+{
+	struct ath_softc *sc = data;
+	bool blocked = !!ath_is_rfkill_set(sc);
+
+	if (rfkill_set_hw_state(rfkill, blocked))
+		ath_radio_disable(sc);
+	else
+		ath_radio_enable(sc);
 }
 
 /* Init s/w rfkill */
 static int ath_init_sw_rfkill(struct ath_softc *sc)
 {
-	sc->rf_kill.rfkill = rfkill_allocate(wiphy_dev(sc->hw->wiphy),
-					     RFKILL_TYPE_WLAN);
+	sc->rf_kill.ops.set_block = ath_rfkill_set_block;
+	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
+		sc->rf_kill.ops.poll = ath_rfkill_poll_state;
+
+	snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name),
+		"ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy));
+
+	sc->rf_kill.rfkill = rfkill_alloc(sc->rf_kill.rfkill_name,
+					  wiphy_dev(sc->hw->wiphy),
+					  RFKILL_TYPE_WLAN,
+					  &sc->rf_kill.ops, sc);
 	if (!sc->rf_kill.rfkill) {
 		DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n");
 		return -ENOMEM;
 	}
 
-	snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name),
-		"ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy));
-	sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name;
-	sc->rf_kill.rfkill->data = sc;
-	sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio;
-	sc->rf_kill.rfkill->state = RFKILL_STATE_UNBLOCKED;
-
 	return 0;
 }
 
 /* Deinitialize rfkill */
 static void ath_deinit_rfkill(struct ath_softc *sc)
 {
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-
 	if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) {
 		rfkill_unregister(sc->rf_kill.rfkill);
+		rfkill_destroy(sc->rf_kill.rfkill);
 		sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED;
-		sc->rf_kill.rfkill = NULL;
 	}
 }
 
 static int ath_start_rfkill_poll(struct ath_softc *sc)
 {
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		queue_delayed_work(sc->hw->workqueue,
-				   &sc->rf_kill.rfkill_poll, 0);
-
 	if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) {
 		if (rfkill_register(sc->rf_kill.rfkill)) {
 			DPRINTF(sc, ATH_DBG_FATAL,
 				"Unable to register rfkill\n");
-			rfkill_free(sc->rf_kill.rfkill);
+			rfkill_destroy(sc->rf_kill.rfkill);
 
 			/* Deinitialize the device */
 			ath_cleanup(sc);
@@ -1678,10 +1627,6 @@ int ath_attach(u16 devid, struct ath_softc *sc)
 		goto error_attach;
 
 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	/* Initialze h/w Rfkill */
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll);
-
 	/* Initialize s/w rfkill */
 	error = ath_init_sw_rfkill(sc);
 	if (error)
@@ -2214,10 +2159,8 @@ static void ath9k_stop(struct ieee80211_hw *hw)
 	} else
 		sc->rx.rxlink = NULL;
 
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-#endif
+	rfkill_pause_polling(sc->rf_kill.rfkill);
+
 	/* disable HAL and put h/w to sleep */
 	ath9k_hw_disable(sc->sc_ah);
 	ath9k_hw_configpcipowersave(sc->sc_ah, 1);

drivers/net/wireless/ath/ath9k/pci.c

@@ -227,11 +227,6 @@ static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
 
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-#endif
-
 	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, PCI_D3hot);
@@ -256,16 +251,6 @@ static int ath_pci_resume(struct pci_dev *pdev)
 			    AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
 	ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
 
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	/*
-	 * check the h/w rfkill state on resume
-	 * and start the rfkill poll timer
-	 */
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		queue_delayed_work(sc->hw->workqueue,
-				   &sc->rf_kill.rfkill_poll, 0);
-#endif
-
 	return 0;
 }
 

drivers/net/wireless/b43/Kconfig

@@ -102,7 +102,7 @@ config B43_LEDS
 # if it's possible.
 config B43_RFKILL
 	bool
-	depends on B43 && (RFKILL = y || RFKILL = B43) && RFKILL_INPUT && (INPUT_POLLDEV = y || INPUT_POLLDEV = B43)
+	depends on B43 && (RFKILL = y || RFKILL = B43)
 	default y
 
 # This config option automatically enables b43 HW-RNG support,

drivers/net/wireless/b43/leds.c

@@ -87,7 +87,7 @@ static void b43_led_brightness_set(struct led_classdev *led_dev,
 }
 
 static int b43_register_led(struct b43_wldev *dev, struct b43_led *led,
-			    const char *name, char *default_trigger,
+			    const char *name, const char *default_trigger,
 			    u8 led_index, bool activelow)
 {
 	int err;

drivers/net/wireless/b43/main.c

@@ -3470,7 +3470,7 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
 
 	if (!!conf->radio_enabled != phy->radio_on) {
 		if (conf->radio_enabled) {
-			b43_software_rfkill(dev, RFKILL_STATE_UNBLOCKED);
+			b43_software_rfkill(dev, false);
 			b43info(dev->wl, "Radio turned on by software\n");
 			if (!dev->radio_hw_enable) {
 				b43info(dev->wl, "The hardware RF-kill button "
@@ -3478,7 +3478,7 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
 					"Press the button to turn it on.\n");
 			}
 		} else {
-			b43_software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED);
+			b43_software_rfkill(dev, true);
 			b43info(dev->wl, "Radio turned off by software\n");
 		}
 	}

drivers/net/wireless/b43/phy_a.c

@@ -480,11 +480,11 @@ static bool b43_aphy_op_supports_hwpctl(struct b43_wldev *dev)
 }
 
 static void b43_aphy_op_software_rfkill(struct b43_wldev *dev,
-					enum rfkill_state state)
+					bool blocked)
 {
 	struct b43_phy *phy = &dev->phy;
 
-	if (state == RFKILL_STATE_UNBLOCKED) {
+	if (!blocked) {
 		if (phy->radio_on)
 			return;
 		b43_radio_write16(dev, 0x0004, 0x00C0);

drivers/net/wireless/b43/phy_common.c

@@ -84,7 +84,7 @@ int b43_phy_init(struct b43_wldev *dev)
 
 	phy->channel = ops->get_default_chan(dev);
 
-	ops->software_rfkill(dev, RFKILL_STATE_UNBLOCKED);
+	ops->software_rfkill(dev, false);
 	err = ops->init(dev);
 	if (err) {
 		b43err(dev->wl, "PHY init failed\n");
@@ -104,7 +104,7 @@ err_phy_exit:
 	if (ops->exit)
 		ops->exit(dev);
 err_block_rf:
-	ops->software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED);
+	ops->software_rfkill(dev, true);
 
 	return err;
 }
@@ -113,7 +113,7 @@ void b43_phy_exit(struct b43_wldev *dev)
 {
 	const struct b43_phy_operations *ops = dev->phy.ops;
 
-	ops->software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED);
+	ops->software_rfkill(dev, true);
 	if (ops->exit)
 		ops->exit(dev);
 }
@@ -295,18 +295,13 @@ err_restore_cookie:
 	return err;
 }
 
-void b43_software_rfkill(struct b43_wldev *dev, enum rfkill_state state)
+void b43_software_rfkill(struct b43_wldev *dev, bool blocked)
 {
 	struct b43_phy *phy = &dev->phy;
 
-	if (state == RFKILL_STATE_HARD_BLOCKED) {
-		/* We cannot hardware-block the device */
-		state = RFKILL_STATE_SOFT_BLOCKED;
-	}
-
 	b43_mac_suspend(dev);
-	phy->ops->software_rfkill(dev, state);
-	phy->radio_on = (state == RFKILL_STATE_UNBLOCKED);
+	phy->ops->software_rfkill(dev, blocked);
+	phy->radio_on = !blocked;
 	b43_mac_enable(dev);
 }
 

drivers/net/wireless/b43/phy_common.h

@@ -159,7 +159,7 @@ struct b43_phy_operations {
 
 	/* Radio */
 	bool (*supports_hwpctl)(struct b43_wldev *dev);
-	void (*software_rfkill)(struct b43_wldev *dev, enum rfkill_state state);
+	void (*software_rfkill)(struct b43_wldev *dev, bool blocked);
 	void (*switch_analog)(struct b43_wldev *dev, bool on);
 	int (*switch_channel)(struct b43_wldev *dev, unsigned int new_channel);
 	unsigned int (*get_default_chan)(struct b43_wldev *dev);
@@ -364,7 +364,7 @@ int b43_switch_channel(struct b43_wldev *dev, unsigned int new_channel);
 /**
  * b43_software_rfkill - Turn the radio ON or OFF in software.
  */
-void b43_software_rfkill(struct b43_wldev *dev, enum rfkill_state state);
+void b43_software_rfkill(struct b43_wldev *dev, bool blocked);
 
 /**
  * b43_phy_txpower_check - Check TX power output.

drivers/net/wireless/b43/phy_g.c

@@ -2592,7 +2592,7 @@ static bool b43_gphy_op_supports_hwpctl(struct b43_wldev *dev)
 }
 
 static void b43_gphy_op_software_rfkill(struct b43_wldev *dev,
-					enum rfkill_state state)
+					bool blocked)
 {
 	struct b43_phy *phy = &dev->phy;
 	struct b43_phy_g *gphy = phy->g;
@@ -2600,7 +2600,7 @@ static void b43_gphy_op_software_rfkill(struct b43_wldev *dev,
 
 	might_sleep();
 
-	if (state == RFKILL_STATE_UNBLOCKED) {
+	if (!blocked) {
 		/* Turn radio ON */
 		if (phy->radio_on)
 			return;

drivers/net/wireless/b43/phy_lp.c

@@ -488,7 +488,7 @@ static void b43_lpphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
 }
 
 static void b43_lpphy_op_software_rfkill(struct b43_wldev *dev,
-					 enum rfkill_state state)
+					 bool blocked)
 {
 	//TODO
 }

drivers/net/wireless/b43/phy_n.c

@@ -579,7 +579,7 @@ static void b43_nphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
 }
 
 static void b43_nphy_op_software_rfkill(struct b43_wldev *dev,
-					enum rfkill_state state)
+					bool blocked)
 {//TODO
 }
 

drivers/net/wireless/b43/rfkill.c

@@ -45,12 +45,11 @@ static bool b43_is_hw_radio_enabled(struct b43_wldev *dev)
 }
 
 /* The poll callback for the hardware button. */
-static void b43_rfkill_poll(struct input_polled_dev *poll_dev)
+static void b43_rfkill_poll(struct rfkill *rfkill, void *data)
 {
-	struct b43_wldev *dev = poll_dev->private;
+	struct b43_wldev *dev = data;
 	struct b43_wl *wl = dev->wl;
 	bool enabled;
-	bool report_change = 0;
 
 	mutex_lock(&wl->mutex);
 	if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) {
@@ -60,68 +59,55 @@ static void b43_rfkill_poll(struct input_polled_dev *poll_dev)
 	enabled = b43_is_hw_radio_enabled(dev);
 	if (unlikely(enabled != dev->radio_hw_enable)) {
 		dev->radio_hw_enable = enabled;
-		report_change = 1;
 		b43info(wl, "Radio hardware status changed to %s\n",
 			enabled ? "ENABLED" : "DISABLED");
+		enabled = !rfkill_set_hw_state(rfkill, !enabled);
+		if (enabled != dev->phy.radio_on)
+			b43_software_rfkill(dev, !enabled);
 	}
 	mutex_unlock(&wl->mutex);
-
-	/* send the radio switch event to the system - note both a key press
-	 * and a release are required */
-	if (unlikely(report_change)) {
-		input_report_key(poll_dev->input, KEY_WLAN, 1);
-		input_report_key(poll_dev->input, KEY_WLAN, 0);
-	}
 }
 
 /* Called when the RFKILL toggled in software. */
-static int b43_rfkill_soft_toggle(void *data, enum rfkill_state state)
+static int b43_rfkill_soft_set(void *data, bool blocked)
 {
 	struct b43_wldev *dev = data;
 	struct b43_wl *wl = dev->wl;
-	int err = -EBUSY;
+	int err = -EINVAL;
 
-	if (!wl->rfkill.registered)
-		return 0;
+	if (WARN_ON(!wl->rfkill.registered))
+		return -EINVAL;
 
 	mutex_lock(&wl->mutex);
+
 	if (b43_status(dev) < B43_STAT_INITIALIZED)
 		goto out_unlock;
+
+	if (!dev->radio_hw_enable)
+		goto out_unlock;
+
+	if (!blocked != dev->phy.radio_on)
+		b43_software_rfkill(dev, blocked);
 	err = 0;
-	switch (state) {
-	case RFKILL_STATE_UNBLOCKED:
-		if (!dev->radio_hw_enable) {
-			/* No luck. We can't toggle the hardware RF-kill
-			 * button from software. */
-			err = -EBUSY;
-			goto out_unlock;
-		}
-		if (!dev->phy.radio_on)
-			b43_software_rfkill(dev, state);
-		break;
-	case RFKILL_STATE_SOFT_BLOCKED:
-		if (dev->phy.radio_on)
-			b43_software_rfkill(dev, state);
-		break;
-	default:
-		b43warn(wl, "Received unexpected rfkill state %d.\n", state);
-		break;
-	}
 out_unlock:
 	mutex_unlock(&wl->mutex);
-
 	return err;
 }
 
-char *b43_rfkill_led_name(struct b43_wldev *dev)
+const char *b43_rfkill_led_name(struct b43_wldev *dev)
 {
 	struct b43_rfkill *rfk = &(dev->wl->rfkill);
 
 	if (!rfk->registered)
 		return NULL;
-	return rfkill_get_led_name(rfk->rfkill);
+	return rfkill_get_led_trigger_name(rfk->rfkill);
 }
 
+static const struct rfkill_ops b43_rfkill_ops = {
+	.set_block = b43_rfkill_soft_set,
+	.poll = b43_rfkill_poll,
+};
+
 void b43_rfkill_init(struct b43_wldev *dev)
 {
 	struct b43_wl *wl = dev->wl;
@@ -130,65 +116,26 @@ void b43_rfkill_init(struct b43_wldev *dev)
 
 	rfk->registered = 0;
 
-	rfk->rfkill = rfkill_allocate(dev->dev->dev, RFKILL_TYPE_WLAN);
-	if (!rfk->rfkill)
-		goto out_error;
 	snprintf(rfk->name, sizeof(rfk->name),
 		 "b43-%s", wiphy_name(wl->hw->wiphy));
-	rfk->rfkill->name = rfk->name;
-	rfk->rfkill->state = RFKILL_STATE_UNBLOCKED;
-	rfk->rfkill->data = dev;
-	rfk->rfkill->toggle_radio = b43_rfkill_soft_toggle;
 
-	rfk->poll_dev = input_allocate_polled_device();
-	if (!rfk->poll_dev) {
-		rfkill_free(rfk->rfkill);
-		goto err_freed_rfk;
-	}
-
-	rfk->poll_dev->private = dev;
-	rfk->poll_dev->poll = b43_rfkill_poll;
-	rfk->poll_dev->poll_interval = 1000; /* msecs */
-
-	rfk->poll_dev->input->name = rfk->name;
-	rfk->poll_dev->input->id.bustype = BUS_HOST;
-	rfk->poll_dev->input->id.vendor = dev->dev->bus->boardinfo.vendor;
-	rfk->poll_dev->input->evbit[0] = BIT(EV_KEY);
-	set_bit(KEY_WLAN, rfk->poll_dev->input->keybit);
+	rfk->rfkill = rfkill_alloc(rfk->name,
+				   dev->dev->dev,
+				   RFKILL_TYPE_WLAN,
+				   &b43_rfkill_ops, dev);
+	if (!rfk->rfkill)
+		goto out_error;
 
 	err = rfkill_register(rfk->rfkill);
 	if (err)
-		goto err_free_polldev;
-
-#ifdef CONFIG_RFKILL_INPUT_MODULE
-	/* B43 RF-kill isn't useful without the rfkill-input subsystem.
-	 * Try to load the module. */
-	err = request_module("rfkill-input");
-	if (err)
-		b43warn(wl, "Failed to load the rfkill-input module. "
-			"The built-in radio LED will not work.\n");
-#endif /* CONFIG_RFKILL_INPUT */
-
-#if !defined(CONFIG_RFKILL_INPUT) && !defined(CONFIG_RFKILL_INPUT_MODULE)
-	b43warn(wl, "The rfkill-input subsystem is not available. "
-		"The built-in radio LED will not work.\n");
-#endif
-
-	err = input_register_polled_device(rfk->poll_dev);
-	if (err)
-		goto err_unreg_rfk;
+		goto err_free;
 
 	rfk->registered = 1;
 
 	return;
-err_unreg_rfk:
-	rfkill_unregister(rfk->rfkill);
-err_free_polldev:
-	input_free_polled_device(rfk->poll_dev);
-	rfk->poll_dev = NULL;
-err_freed_rfk:
-	rfk->rfkill = NULL;
-out_error:
+ err_free:
+	rfkill_destroy(rfk->rfkill);
+ out_error:
 	rfk->registered = 0;
 	b43warn(wl, "RF-kill button init failed\n");
 }
@@ -201,9 +148,7 @@ void b43_rfkill_exit(struct b43_wldev *dev)
 		return;
 	rfk->registered = 0;
 
-	input_unregister_polled_device(rfk->poll_dev);
 	rfkill_unregister(rfk->rfkill);
-	input_free_polled_device(rfk->poll_dev);
-	rfk->poll_dev = NULL;
+	rfkill_destroy(rfk->rfkill);
 	rfk->rfkill = NULL;
 }

drivers/net/wireless/b43/rfkill.h

@@ -7,14 +7,11 @@ struct b43_wldev;
 #ifdef CONFIG_B43_RFKILL
 
 #include <linux/rfkill.h>
-#include <linux/input-polldev.h>
 
 
 struct b43_rfkill {
 	/* The RFKILL subsystem data structure */
 	struct rfkill *rfkill;
-	/* The poll device for the RFKILL input button */
-	struct input_polled_dev *poll_dev;
 	/* Did initialization succeed? Used for freeing. */
 	bool registered;
 	/* The unique name of this rfkill switch */
@@ -26,7 +23,7 @@ struct b43_rfkill {
 void b43_rfkill_init(struct b43_wldev *dev);
 void b43_rfkill_exit(struct b43_wldev *dev);
 
-char * b43_rfkill_led_name(struct b43_wldev *dev);
+const char *b43_rfkill_led_name(struct b43_wldev *dev);
 
 
 #else /* CONFIG_B43_RFKILL */

drivers/net/wireless/b43legacy/Kconfig

@@ -47,7 +47,7 @@ config B43LEGACY_LEDS
 # if it's possible.
 config B43LEGACY_RFKILL
 	bool
-	depends on B43LEGACY && (RFKILL = y || RFKILL = B43LEGACY) && RFKILL_INPUT && (INPUT_POLLDEV = y || INPUT_POLLDEV = B43LEGACY)
+	depends on B43LEGACY && (RFKILL = y || RFKILL = B43LEGACY)
 	default y
 
 # This config option automatically enables b43 HW-RNG support,