Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 203 insertions, 98 deletions

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 453893b3120..daefaac5113 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -44,14 +44,31 @@ struct inquiry_data {
 };
 
 struct inquiry_entry {
-	struct inquiry_entry	*next;
+	struct list_head	all;		/* inq_cache.all */
+	struct list_head	list;		/* unknown or resolve */
+	enum {
+		NAME_NOT_KNOWN,
+		NAME_NEEDED,
+		NAME_PENDING,
+		NAME_KNOWN,
+	} name_state;
 	__u32			timestamp;
 	struct inquiry_data	data;
 };
 
-struct inquiry_cache {
+struct discovery_state {
+	int			type;
+	enum {
+		DISCOVERY_STOPPED,
+		DISCOVERY_STARTING,
+		DISCOVERY_FINDING,
+		DISCOVERY_RESOLVING,
+		DISCOVERY_STOPPING,
+	} state;
+	struct list_head	all;		/* All devices found during inquiry */
+	struct list_head	unknown;	/* Name state not known */
+	struct list_head	resolve;	/* Name needs to be resolved */
 	__u32			timestamp;
-	struct inquiry_entry	*list;
 };
 
 struct hci_conn_hash {
@@ -72,18 +89,16 @@ struct bt_uuid {
 	u8 svc_hint;
 };
 
-struct key_master_id {
-	__le16 ediv;
-	u8 rand[8];
-} __packed;
-
-struct link_key_data {
+struct smp_ltk {
+	struct list_head list;
 	bdaddr_t bdaddr;
+	u8 bdaddr_type;
+	u8 authenticated;
 	u8 type;
+	u8 enc_size;
+	__le16 ediv;
+	u8 rand[8];
 	u8 val[16];
-	u8 pin_len;
-	u8 dlen;
-	u8 data[0];
 } __packed;
 
 struct link_key {
@@ -92,8 +107,6 @@ struct link_key {
 	u8 type;
 	u8 val[16];
 	u8 pin_len;
-	u8 dlen;
-	u8 data[0];
 };
 
 struct oob_data {
@@ -109,11 +122,19 @@ struct adv_entry {
 	u8 bdaddr_type;
 };
 
+struct le_scan_params {
+	u8 type;
+	u16 interval;
+	u16 window;
+	int timeout;
+};
+
+#define HCI_MAX_SHORT_NAME_LENGTH	10
+
 #define NUM_REASSEMBLY 4
 struct hci_dev {
 	struct list_head list;
 	struct mutex	lock;
-	atomic_t	refcnt;
 
 	char		name[8];
 	unsigned long	flags;
@@ -122,6 +143,7 @@ struct hci_dev {
 	__u8		dev_type;
 	bdaddr_t	bdaddr;
 	__u8		dev_name[HCI_MAX_NAME_LENGTH];
+	__u8		short_name[HCI_MAX_SHORT_NAME_LENGTH];
 	__u8		eir[HCI_MAX_EIR_LENGTH];
 	__u8		dev_class[3];
 	__u8		major_class;
@@ -129,7 +151,6 @@ struct hci_dev {
 	__u8		features[8];
 	__u8		host_features[8];
 	__u8		commands[64];
-	__u8		ssp_mode;
 	__u8		hci_ver;
 	__u16		hci_rev;
 	__u8		lmp_ver;
@@ -217,7 +238,7 @@ struct hci_dev {
 
 	struct list_head	mgmt_pending;
 
-	struct inquiry_cache	inq_cache;
+	struct discovery_state	discovery;
 	struct hci_conn_hash	conn_hash;
 	struct list_head	blacklist;
 
@@ -225,6 +246,8 @@ struct hci_dev {
 
 	struct list_head	link_keys;
 
+	struct list_head	long_term_keys;
+
 	struct list_head	remote_oob_data;
 
 	struct list_head	adv_entries;
@@ -234,7 +257,6 @@ struct hci_dev {
 
 	struct sk_buff_head	driver_init;
 
-	void			*driver_data;
 	void			*core_data;
 
 	atomic_t		promisc;
@@ -246,15 +268,17 @@ struct hci_dev {
 
 	struct rfkill		*rfkill;
 
-	struct module		*owner;
-
 	unsigned long		dev_flags;
 
+	struct delayed_work	le_scan_disable;
+
+	struct work_struct	le_scan;
+	struct le_scan_params	le_scan_params;
+
 	int (*open)(struct hci_dev *hdev);
 	int (*close)(struct hci_dev *hdev);
 	int (*flush)(struct hci_dev *hdev);
 	int (*send)(struct sk_buff *skb);
-	void (*destruct)(struct hci_dev *hdev);
 	void (*notify)(struct hci_dev *hdev, unsigned int evt);
 	int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 };
@@ -270,11 +294,10 @@ struct hci_conn {
 	__u16		state;
 	__u8		mode;
 	__u8		type;
-	__u8		out;
+	bool		out;
 	__u8		attempt;
 	__u8		dev_class[3];
 	__u8		features[8];
-	__u8		ssp_mode;
 	__u16		interval;
 	__u16		pkt_type;
 	__u16		link_policy;
@@ -286,12 +309,10 @@ struct hci_conn {
 	__u8		pin_length;
 	__u8		enc_key_size;
 	__u8		io_capability;
-	__u8		power_save;
 	__u16		disc_timeout;
-	unsigned long	pend;
+	unsigned long	flags;
 
 	__u8		remote_cap;
-	__u8		remote_oob;
 	__u8		remote_auth;
 
 	unsigned int	sent;
@@ -348,21 +369,26 @@ extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 
-static inline void inquiry_cache_init(struct hci_dev *hdev)
+static inline void discovery_init(struct hci_dev *hdev)
 {
-	struct inquiry_cache *c = &hdev->inq_cache;
-	c->list = NULL;
+	hdev->discovery.state = DISCOVERY_STOPPED;
+	INIT_LIST_HEAD(&hdev->discovery.all);
+	INIT_LIST_HEAD(&hdev->discovery.unknown);
+	INIT_LIST_HEAD(&hdev->discovery.resolve);
 }
 
+bool hci_discovery_active(struct hci_dev *hdev);
+
+void hci_discovery_set_state(struct hci_dev *hdev, int state);
+
 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 {
-	struct inquiry_cache *c = &hdev->inq_cache;
-	return c->list == NULL;
+	return list_empty(&hdev->discovery.all);
 }
 
 static inline long inquiry_cache_age(struct hci_dev *hdev)
 {
-	struct inquiry_cache *c = &hdev->inq_cache;
+	struct discovery_state *c = &hdev->discovery;
 	return jiffies - c->timestamp;
 }
 
@@ -372,8 +398,16 @@ static inline long inquiry_entry_age(struct inquiry_entry *e)
 }
 
 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
-							bdaddr_t *bdaddr);
-void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
+					       bdaddr_t *bdaddr);
+struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
+						       bdaddr_t *bdaddr);
+struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
+						       bdaddr_t *bdaddr,
+						       int state);
+void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
+				      struct inquiry_entry *ie);
+bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
+			      bool name_known, bool *ssp);
 
 /* ----- HCI Connections ----- */
 enum {
@@ -384,8 +418,19 @@ enum {
 	HCI_CONN_MODE_CHANGE_PEND,
 	HCI_CONN_SCO_SETUP_PEND,
 	HCI_CONN_LE_SMP_PEND,
+	HCI_CONN_MGMT_CONNECTED,
+	HCI_CONN_SSP_ENABLED,
+	HCI_CONN_POWER_SAVE,
+	HCI_CONN_REMOTE_OOB,
 };
 
+static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	return (test_bit(HCI_SSP_ENABLED, &hdev->flags) &&
+				test_bit(HCI_CONN_SSP_ENABLED, &conn->flags));
+}
+
 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
@@ -566,36 +611,33 @@ static inline void hci_conn_put(struct hci_conn *conn)
 }
 
 /* ----- HCI Devices ----- */
-static inline void __hci_dev_put(struct hci_dev *d)
+static inline void hci_dev_put(struct hci_dev *d)
 {
-	if (atomic_dec_and_test(&d->refcnt))
-		d->destruct(d);
+	put_device(&d->dev);
 }
 
-/*
- * hci_dev_put and hci_dev_hold are macros to avoid dragging all the
- * overhead of all the modular infrastructure into this header.
- */
-#define hci_dev_put(d)		\
-do {				\
-	__hci_dev_put(d);	\
-	module_put(d->owner);	\
-} while (0)
-
-static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
+static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 {
-	atomic_inc(&d->refcnt);
+	get_device(&d->dev);
 	return d;
 }
 
-#define hci_dev_hold(d)						\
-({								\
-	try_module_get(d->owner) ? __hci_dev_hold(d) : NULL;	\
-})
-
 #define hci_dev_lock(d)		mutex_lock(&d->lock)
 #define hci_dev_unlock(d)	mutex_unlock(&d->lock)
 
+#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
+#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
+
+static inline void *hci_get_drvdata(struct hci_dev *hdev)
+{
+	return dev_get_drvdata(&hdev->dev);
+}
+
+static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
+{
+	dev_set_drvdata(&hdev->dev, data);
+}
+
 struct hci_dev *hci_dev_get(int index);
 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 
@@ -619,20 +661,23 @@ int hci_inquiry(void __user *arg);
 
 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 int hci_blacklist_clear(struct hci_dev *hdev);
-int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
-int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
+int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
+int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 
 int hci_uuids_clear(struct hci_dev *hdev);
 
 int hci_link_keys_clear(struct hci_dev *hdev);
 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
-			bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
-struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
-struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
-					bdaddr_t *bdaddr, u8 type);
-int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
-			u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
+		     bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
+struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
+int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
+		int new_key, u8 authenticated, u8 tk[16], u8 enc_size, u16 ediv,
+		u8 rand[8]);
+struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				     u8 addr_type);
+int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
+int hci_smp_ltks_clear(struct hci_dev *hdev);
 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 
 int hci_remote_oob_data_clear(struct hci_dev *hdev);
@@ -674,6 +719,7 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
 #define lmp_le_capable(dev)        ((dev)->features[4] & LMP_LE)
+#define lmp_bredr_capable(dev)     (!((dev)->features[4] & LMP_NO_BREDR))
 
 /* ----- Extended LMP capabilities ----- */
 #define lmp_host_le_capable(dev)   ((dev)->host_features[0] & LMP_HOST_LE)
@@ -755,7 +801,7 @@ static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 	if (conn->type != ACL_LINK && conn->type != LE_LINK)
 		return;
 
-	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
+	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
 		return;
 
 	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
@@ -796,7 +842,7 @@ static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 
 	hci_proto_auth_cfm(conn, status);
 
-	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
+	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
 		return;
 
 	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
@@ -859,25 +905,71 @@ static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
 	read_unlock(&hci_cb_list_lock);
 }
 
+static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
+{
+	u8 field_len;
+	size_t parsed;
+
+	for (parsed = 0; parsed < data_len - 1; parsed += field_len) {
+		field_len = data[0];
+
+		if (field_len == 0)
+			break;
+
+		parsed += field_len + 1;
+
+		if (parsed > data_len)
+			break;
+
+		if (data[1] == type)
+			return true;
+
+		data += field_len + 1;
+	}
+
+	return false;
+}
+
+static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
+				  u8 data_len)
+{
+	eir[eir_len++] = sizeof(type) + data_len;
+	eir[eir_len++] = type;
+	memcpy(&eir[eir_len], data, data_len);
+	eir_len += data_len;
+
+	return eir_len;
+}
+
 int hci_register_cb(struct hci_cb *hcb);
 int hci_unregister_cb(struct hci_cb *hcb);
 
-int hci_register_notifier(struct notifier_block *nb);
-int hci_unregister_notifier(struct notifier_block *nb);
-
 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 
 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 
-void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
-
 /* ----- HCI Sockets ----- */
-void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
-							struct sock *skip_sk);
+void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
+void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
+void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
+
+void hci_sock_dev_event(struct hci_dev *hdev, int event);
 
 /* Management interface */
+#define MGMT_ADDR_BREDR			0x00
+#define MGMT_ADDR_LE_PUBLIC		0x01
+#define MGMT_ADDR_LE_RANDOM		0x02
+#define MGMT_ADDR_INVALID		0xff
+
+#define DISCOV_TYPE_BREDR		(BIT(MGMT_ADDR_BREDR))
+#define DISCOV_TYPE_LE			(BIT(MGMT_ADDR_LE_PUBLIC) | \
+						BIT(MGMT_ADDR_LE_RANDOM))
+#define DISCOV_TYPE_INTERLEAVED		(BIT(MGMT_ADDR_BREDR) | \
+						BIT(MGMT_ADDR_LE_PUBLIC) | \
+						BIT(MGMT_ADDR_LE_RANDOM))
+
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 int mgmt_index_added(struct hci_dev *hdev);
 int mgmt_index_removed(struct hci_dev *hdev);
@@ -886,56 +978,67 @@ int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
-								u8 persistent);
-int mgmt_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-								u8 addr_type);
-int mgmt_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-								u8 addr_type);
-int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
+		      u8 persistent);
+int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			  u8 addr_type, u32 flags, u8 *name, u8 name_len,
+			  u8 *dev_class);
+int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			     u8 link_type, u8 addr_type);
+int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			   u8 link_type, u8 addr_type, u8 status);
 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-						u8 addr_type, u8 status);
+			u8 addr_type, u8 status);
 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-								u8 status);
+				 u8 status);
 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-								u8 status);
+				     u8 status);
 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
-						__le32 value, u8 confirm_hint);
+			      u8 link_type, u8 addr_type, __le32 value,
+			      u8 confirm_hint);
 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-								u8 status);
-int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev,
-						bdaddr_t *bdaddr, u8 status);
-int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr);
+				     u8 link_type, u8 addr_type, u8 status);
+int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+					 u8 link_type, u8 addr_type, u8 status);
+int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			      u8 link_type, u8 addr_type);
 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-								u8 status);
-int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev,
-						bdaddr_t *bdaddr, u8 status);
-int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
+				     u8 link_type, u8 addr_type, u8 status);
+int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+					 u8 link_type, u8 addr_type, u8 status);
+int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		     u8 addr_type, u8 status);
+int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
+int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
+int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
+				   u8 status);
 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
-						u8 *randomizer, u8 status);
+					    u8 *randomizer, u8 status);
+int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-				u8 addr_type, u8 *dev_class, s8 rssi, u8 *eir);
-int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name);
+		      u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
+		      u8 ssp, u8 *eir, u16 eir_len);
+int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		     u8 addr_type, s8 rssi, u8 *name, u8 name_len);
 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
-int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
-int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
+int mgmt_interleaved_discovery(struct hci_dev *hdev);
+int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
+int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
+
+int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
 
 /* HCI info for socket */
 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 
-/* HCI socket flags */
-#define HCI_PI_MGMT_INIT	0
-
 struct hci_pinfo {
 	struct bt_sock    bt;
 	struct hci_dev    *hdev;
 	struct hci_filter filter;
 	__u32             cmsg_mask;
 	unsigned short   channel;
-	unsigned long     flags;
 };
 
 /* HCI security filter */
@@ -966,5 +1069,7 @@ void hci_le_ltk_neg_reply(struct hci_conn *conn);
 
 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
 int hci_cancel_inquiry(struct hci_dev *hdev);
+int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
+		int timeout);
 
 #endif /* __HCI_CORE_H */