Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next

John Linville says:

====================
This is a sizeable batch of updates intended for 3.6...

The bulk of the changes here are Bluetooth.  Gustavo says:

	Here goes the first Bluetooth pull request for 3.6, we have
	queued quite a lot of work. Andrei Emeltchenko added the AMP
	Manager code, a lot of work is needed, but the first bit are
	already there. This code is disabled by default.  Mat Martineau
	changed the whole L2CAP ERTM state machine code, replacing
	the old one with a new implementation. Besides that we had
	lot of coding style fixes (to follow net rules), more l2cap
	core separation from socket and many clean ups and fixed all
	over the tree.

Along with the above, there is a healthy dose of ath9k, iwlwifi,
and other driver updates.  There is also another pull from the
wireless tree to resolve some merge issues.  I also fixed-up some
merge discrepencies between net-next and wireless-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

27 files changed, 2555 insertions, 1451 deletions

diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index 2dc5a5700f5..fa6d94a4602 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -9,4 +9,5 @@ obj-$(CONFIG_BT_CMTP)	+= cmtp/
 obj-$(CONFIG_BT_HIDP)	+= hidp/
 
 bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
-	hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o
+	hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \
+	a2mp.o
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
new file mode 100644
index 00000000000..fb93250b393
--- /dev/null
+++ b/net/bluetooth/a2mp.c
@@ -0,0 +1,568 @@
+/*
+   Copyright (c) 2010,2011 Code Aurora Forum.  All rights reserved.
+   Copyright (c) 2011,2012 Intel Corp.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 and
+   only version 2 as published by the Free Software Foundation.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+*/
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+#include <net/bluetooth/a2mp.h>
+
+/* A2MP build & send command helper functions */
+static struct a2mp_cmd *__a2mp_build(u8 code, u8 ident, u16 len, void *data)
+{
+	struct a2mp_cmd *cmd;
+	int plen;
+
+	plen = sizeof(*cmd) + len;
+	cmd = kzalloc(plen, GFP_KERNEL);
+	if (!cmd)
+		return NULL;
+
+	cmd->code = code;
+	cmd->ident = ident;
+	cmd->len = cpu_to_le16(len);
+
+	memcpy(cmd->data, data, len);
+
+	return cmd;
+}
+
+static void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len,
+		      void *data)
+{
+	struct l2cap_chan *chan = mgr->a2mp_chan;
+	struct a2mp_cmd *cmd;
+	u16 total_len = len + sizeof(*cmd);
+	struct kvec iv;
+	struct msghdr msg;
+
+	cmd = __a2mp_build(code, ident, len, data);
+	if (!cmd)
+		return;
+
+	iv.iov_base = cmd;
+	iv.iov_len = total_len;
+
+	memset(&msg, 0, sizeof(msg));
+
+	msg.msg_iov = (struct iovec *) &iv;
+	msg.msg_iovlen = 1;
+
+	l2cap_chan_send(chan, &msg, total_len, 0);
+
+	kfree(cmd);
+}
+
+static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
+{
+	cl->id = 0;
+	cl->type = 0;
+	cl->status = 1;
+}
+
+/* hci_dev_list shall be locked */
+static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl)
+{
+	int i = 0;
+	struct hci_dev *hdev;
+
+	__a2mp_cl_bredr(cl);
+
+	list_for_each_entry(hdev, &hci_dev_list, list) {
+		/* Iterate through AMP controllers */
+		if (hdev->id == HCI_BREDR_ID)
+			continue;
+
+		/* Starting from second entry */
+		if (++i >= num_ctrl)
+			return;
+
+		cl[i].id = hdev->id;
+		cl[i].type = hdev->amp_type;
+		cl[i].status = hdev->amp_status;
+	}
+}
+
+/* Processing A2MP messages */
+static int a2mp_command_rej(struct amp_mgr *mgr, struct sk_buff *skb,
+			    struct a2mp_cmd *hdr)
+{
+	struct a2mp_cmd_rej *rej = (void *) skb->data;
+
+	if (le16_to_cpu(hdr->len) < sizeof(*rej))
+		return -EINVAL;
+
+	BT_DBG("ident %d reason %d", hdr->ident, le16_to_cpu(rej->reason));
+
+	skb_pull(skb, sizeof(*rej));
+
+	return 0;
+}
+
+static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
+			     struct a2mp_cmd *hdr)
+{
+	struct a2mp_discov_req *req = (void *) skb->data;
+	u16 len = le16_to_cpu(hdr->len);
+	struct a2mp_discov_rsp *rsp;
+	u16 ext_feat;
+	u8 num_ctrl;
+
+	if (len < sizeof(*req))
+		return -EINVAL;
+
+	skb_pull(skb, sizeof(*req));
+
+	ext_feat = le16_to_cpu(req->ext_feat);
+
+	BT_DBG("mtu %d efm 0x%4.4x", le16_to_cpu(req->mtu), ext_feat);
+
+	/* check that packet is not broken for now */
+	while (ext_feat & A2MP_FEAT_EXT) {
+		if (len < sizeof(ext_feat))
+			return -EINVAL;
+
+		ext_feat = get_unaligned_le16(skb->data);
+		BT_DBG("efm 0x%4.4x", ext_feat);
+		len -= sizeof(ext_feat);
+		skb_pull(skb, sizeof(ext_feat));
+	}
+
+	read_lock(&hci_dev_list_lock);
+
+	num_ctrl = __hci_num_ctrl();
+	len = num_ctrl * sizeof(struct a2mp_cl) + sizeof(*rsp);
+	rsp = kmalloc(len, GFP_ATOMIC);
+	if (!rsp) {
+		read_unlock(&hci_dev_list_lock);
+		return -ENOMEM;
+	}
+
+	rsp->mtu = __constant_cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU);
+	rsp->ext_feat = 0;
+
+	__a2mp_add_cl(mgr, rsp->cl, num_ctrl);
+
+	read_unlock(&hci_dev_list_lock);
+
+	a2mp_send(mgr, A2MP_DISCOVER_RSP, hdr->ident, len, rsp);
+
+	kfree(rsp);
+	return 0;
+}
+
+static int a2mp_change_notify(struct amp_mgr *mgr, struct sk_buff *skb,
+			      struct a2mp_cmd *hdr)
+{
+	struct a2mp_cl *cl = (void *) skb->data;
+
+	while (skb->len >= sizeof(*cl)) {
+		BT_DBG("Controller id %d type %d status %d", cl->id, cl->type,
+		       cl->status);
+		cl = (struct a2mp_cl *) skb_pull(skb, sizeof(*cl));
+	}
+
+	/* TODO send A2MP_CHANGE_RSP */
+
+	return 0;
+}
+
+static int a2mp_getinfo_req(struct amp_mgr *mgr, struct sk_buff *skb,
+			    struct a2mp_cmd *hdr)
+{
+	struct a2mp_info_req *req  = (void *) skb->data;
+	struct a2mp_info_rsp rsp;
+	struct hci_dev *hdev;
+
+	if (le16_to_cpu(hdr->len) < sizeof(*req))
+		return -EINVAL;
+
+	BT_DBG("id %d", req->id);
+
+	rsp.id = req->id;
+	rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+
+	hdev = hci_dev_get(req->id);
+	if (hdev && hdev->amp_type != HCI_BREDR) {
+		rsp.status = 0;
+		rsp.total_bw = cpu_to_le32(hdev->amp_total_bw);
+		rsp.max_bw = cpu_to_le32(hdev->amp_max_bw);
+		rsp.min_latency = cpu_to_le32(hdev->amp_min_latency);
+		rsp.pal_cap = cpu_to_le16(hdev->amp_pal_cap);
+		rsp.assoc_size = cpu_to_le16(hdev->amp_assoc_size);
+	}
+
+	if (hdev)
+		hci_dev_put(hdev);
+
+	a2mp_send(mgr, A2MP_GETINFO_RSP, hdr->ident, sizeof(rsp), &rsp);
+
+	skb_pull(skb, sizeof(*req));
+	return 0;
+}
+
+static int a2mp_getampassoc_req(struct amp_mgr *mgr, struct sk_buff *skb,
+				struct a2mp_cmd *hdr)
+{
+	struct a2mp_amp_assoc_req *req = (void *) skb->data;
+	struct hci_dev *hdev;
+
+	if (le16_to_cpu(hdr->len) < sizeof(*req))
+		return -EINVAL;
+
+	BT_DBG("id %d", req->id);
+
+	hdev = hci_dev_get(req->id);
+	if (!hdev || hdev->amp_type == HCI_BREDR) {
+		struct a2mp_amp_assoc_rsp rsp;
+		rsp.id = req->id;
+		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+
+		a2mp_send(mgr, A2MP_GETAMPASSOC_RSP, hdr->ident, sizeof(rsp),
+			  &rsp);
+		goto clean;
+	}
+
+	/* Placeholder for HCI Read AMP Assoc */
+
+clean:
+	if (hdev)
+		hci_dev_put(hdev);
+
+	skb_pull(skb, sizeof(*req));
+	return 0;
+}
+
+static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
+				   struct a2mp_cmd *hdr)
+{
+	struct a2mp_physlink_req *req = (void *) skb->data;
+
+	struct a2mp_physlink_rsp rsp;
+	struct hci_dev *hdev;
+
+	if (le16_to_cpu(hdr->len) < sizeof(*req))
+		return -EINVAL;
+
+	BT_DBG("local_id %d, remote_id %d", req->local_id, req->remote_id);
+
+	rsp.local_id = req->remote_id;
+	rsp.remote_id = req->local_id;
+
+	hdev = hci_dev_get(req->remote_id);
+	if (!hdev || hdev->amp_type != HCI_AMP) {
+		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+		goto send_rsp;
+	}
+
+	/* TODO process physlink create */
+
+	rsp.status = A2MP_STATUS_SUCCESS;
+
+send_rsp:
+	if (hdev)
+		hci_dev_put(hdev);
+
+	a2mp_send(mgr, A2MP_CREATEPHYSLINK_RSP, hdr->ident, sizeof(rsp),
+		  &rsp);
+
+	skb_pull(skb, le16_to_cpu(hdr->len));
+	return 0;
+}
+
+static int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
+				 struct a2mp_cmd *hdr)
+{
+	struct a2mp_physlink_req *req = (void *) skb->data;
+	struct a2mp_physlink_rsp rsp;
+	struct hci_dev *hdev;
+
+	if (le16_to_cpu(hdr->len) < sizeof(*req))
+		return -EINVAL;
+
+	BT_DBG("local_id %d remote_id %d", req->local_id, req->remote_id);
+
+	rsp.local_id = req->remote_id;
+	rsp.remote_id = req->local_id;
+	rsp.status = A2MP_STATUS_SUCCESS;
+
+	hdev = hci_dev_get(req->local_id);
+	if (!hdev) {
+		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+		goto send_rsp;
+	}
+
+	/* TODO Disconnect Phys Link here */
+
+	hci_dev_put(hdev);
+
+send_rsp:
+	a2mp_send(mgr, A2MP_DISCONNPHYSLINK_RSP, hdr->ident, sizeof(rsp), &rsp);
+
+	skb_pull(skb, sizeof(*req));
+	return 0;
+}
+
+static inline int a2mp_cmd_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
+			       struct a2mp_cmd *hdr)
+{
+	BT_DBG("ident %d code %d", hdr->ident, hdr->code);
+
+	skb_pull(skb, le16_to_cpu(hdr->len));
+	return 0;
+}
+
+/* Handle A2MP signalling */
+static int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
+{
+	struct a2mp_cmd *hdr = (void *) skb->data;
+	struct amp_mgr *mgr = chan->data;
+	int err = 0;
+
+	amp_mgr_get(mgr);
+
+	while (skb->len >= sizeof(*hdr)) {
+		struct a2mp_cmd *hdr = (void *) skb->data;
+		u16 len = le16_to_cpu(hdr->len);
+
+		BT_DBG("code 0x%02x id %d len %d", hdr->code, hdr->ident, len);
+
+		skb_pull(skb, sizeof(*hdr));
+
+		if (len > skb->len || !hdr->ident) {
+			err = -EINVAL;
+			break;
+		}
+
+		mgr->ident = hdr->ident;
+
+		switch (hdr->code) {
+		case A2MP_COMMAND_REJ:
+			a2mp_command_rej(mgr, skb, hdr);
+			break;
+
+		case A2MP_DISCOVER_REQ:
+			err = a2mp_discover_req(mgr, skb, hdr);
+			break;
+
+		case A2MP_CHANGE_NOTIFY:
+			err = a2mp_change_notify(mgr, skb, hdr);
+			break;
+
+		case A2MP_GETINFO_REQ:
+			err = a2mp_getinfo_req(mgr, skb, hdr);
+			break;
+
+		case A2MP_GETAMPASSOC_REQ:
+			err = a2mp_getampassoc_req(mgr, skb, hdr);
+			break;
+
+		case A2MP_CREATEPHYSLINK_REQ:
+			err = a2mp_createphyslink_req(mgr, skb, hdr);
+			break;
+
+		case A2MP_DISCONNPHYSLINK_REQ:
+			err = a2mp_discphyslink_req(mgr, skb, hdr);
+			break;
+
+		case A2MP_CHANGE_RSP:
+		case A2MP_DISCOVER_RSP:
+		case A2MP_GETINFO_RSP:
+		case A2MP_GETAMPASSOC_RSP:
+		case A2MP_CREATEPHYSLINK_RSP:
+		case A2MP_DISCONNPHYSLINK_RSP:
+			err = a2mp_cmd_rsp(mgr, skb, hdr);
+			break;
+
+		default:
+			BT_ERR("Unknown A2MP sig cmd 0x%2.2x", hdr->code);
+			err = -EINVAL;
+			break;
+		}
+	}
+
+	if (err) {
+		struct a2mp_cmd_rej rej;
+		rej.reason = __constant_cpu_to_le16(0);
+
+		BT_DBG("Send A2MP Rej: cmd 0x%2.2x err %d", hdr->code, err);
+
+		a2mp_send(mgr, A2MP_COMMAND_REJ, hdr->ident, sizeof(rej),
+			  &rej);
+	}
+
+	/* Always free skb and return success error code to prevent
+	   from sending L2CAP Disconnect over A2MP channel */
+	kfree_skb(skb);
+
+	amp_mgr_put(mgr);
+
+	return 0;
+}
+
+static void a2mp_chan_close_cb(struct l2cap_chan *chan)
+{
+	l2cap_chan_destroy(chan);
+}
+
+static void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state)
+{
+	struct amp_mgr *mgr = chan->data;
+
+	if (!mgr)
+		return;
+
+	BT_DBG("chan %p state %s", chan, state_to_string(state));
+
+	chan->state = state;
+
+	switch (state) {
+	case BT_CLOSED:
+		if (mgr)
+			amp_mgr_put(mgr);
+		break;
+	}
+}
+
+static struct sk_buff *a2mp_chan_alloc_skb_cb(struct l2cap_chan *chan,
+					      unsigned long len, int nb)
+{
+	return bt_skb_alloc(len, GFP_KERNEL);
+}
+
+static struct l2cap_ops a2mp_chan_ops = {
+	.name = "L2CAP A2MP channel",
+	.recv = a2mp_chan_recv_cb,
+	.close = a2mp_chan_close_cb,
+	.state_change = a2mp_chan_state_change_cb,
+	.alloc_skb = a2mp_chan_alloc_skb_cb,
+
+	/* Not implemented for A2MP */
+	.new_connection = l2cap_chan_no_new_connection,
+	.teardown = l2cap_chan_no_teardown,
+	.ready = l2cap_chan_no_ready,
+};
+
+static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn)
+{
+	struct l2cap_chan *chan;
+	int err;
+
+	chan = l2cap_chan_create();
+	if (!chan)
+		return NULL;
+
+	BT_DBG("chan %p", chan);
+
+	chan->chan_type = L2CAP_CHAN_CONN_FIX_A2MP;
+	chan->flush_to = L2CAP_DEFAULT_FLUSH_TO;
+
+	chan->ops = &a2mp_chan_ops;
+
+	l2cap_chan_set_defaults(chan);
+	chan->remote_max_tx = chan->max_tx;
+	chan->remote_tx_win = chan->tx_win;
+
+	chan->retrans_timeout = L2CAP_DEFAULT_RETRANS_TO;
+	chan->monitor_timeout = L2CAP_DEFAULT_MONITOR_TO;
+
+	skb_queue_head_init(&chan->tx_q);
+
+	chan->mode = L2CAP_MODE_ERTM;
+
+	err = l2cap_ertm_init(chan);
+	if (err < 0) {
+		l2cap_chan_del(chan, 0);
+		return NULL;
+	}
+
+	chan->conf_state = 0;
+
+	l2cap_chan_add(conn, chan);
+
+	chan->remote_mps = chan->omtu;
+	chan->mps = chan->omtu;
+
+	chan->state = BT_CONNECTED;
+
+	return chan;
+}
+
+/* AMP Manager functions */
+void amp_mgr_get(struct amp_mgr *mgr)
+{
+	BT_DBG("mgr %p", mgr);
+
+	kref_get(&mgr->kref);
+}
+
+static void amp_mgr_destroy(struct kref *kref)
+{
+	struct amp_mgr *mgr = container_of(kref, struct amp_mgr, kref);
+
+	BT_DBG("mgr %p", mgr);
+
+	kfree(mgr);
+}
+
+int amp_mgr_put(struct amp_mgr *mgr)
+{
+	BT_DBG("mgr %p", mgr);
+
+	return kref_put(&mgr->kref, &amp_mgr_destroy);
+}
+
+static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn)
+{
+	struct amp_mgr *mgr;
+	struct l2cap_chan *chan;
+
+	mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
+	if (!mgr)
+		return NULL;
+
+	BT_DBG("conn %p mgr %p", conn, mgr);
+
+	mgr->l2cap_conn = conn;
+
+	chan = a2mp_chan_open(conn);
+	if (!chan) {
+		kfree(mgr);
+		return NULL;
+	}
+
+	mgr->a2mp_chan = chan;
+	chan->data = mgr;
+
+	conn->hcon->amp_mgr = mgr;
+
+	kref_init(&mgr->kref);
+
+	return mgr;
+}
+
+struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
+				       struct sk_buff *skb)
+{
+	struct amp_mgr *mgr;
+
+	mgr = amp_mgr_create(conn);
+	if (!mgr) {
+		BT_ERR("Could not create AMP manager");
+		return NULL;
+	}
+
+	BT_DBG("mgr: %p chan %p", mgr, mgr->a2mp_chan);
+
+	return mgr->a2mp_chan;
+}
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 3e18af4dadc..f7db5792ec6 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -25,18 +25,7 @@
 /* Bluetooth address family and sockets. */
 
 #include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/skbuff.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <net/sock.h>
 #include <asm/ioctls.h>
-#include <linux/kmod.h>
 
 #include <net/bluetooth/bluetooth.h>
 
@@ -418,7 +407,8 @@ static inline unsigned int bt_accept_poll(struct sock *parent)
 	return 0;
 }
 
-unsigned int bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait)
+unsigned int bt_sock_poll(struct file *file, struct socket *sock,
+			  poll_table *wait)
 {
 	struct sock *sk = sock->sk;
 	unsigned int mask = 0;
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 031d7d65675..4a6620bc157 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -26,26 +26,9 @@
 */
 
 #include <linux/module.h>
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/init.h>
-#include <linux/wait.h>
-#include <linux/freezer.h>
-#include <linux/errno.h>
-#include <linux/net.h>
-#include <linux/slab.h>
 #include <linux/kthread.h>
-#include <net/sock.h>
-
-#include <linux/socket.h>
 #include <linux/file.h>
-
-#include <linux/netdevice.h>
 #include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -306,7 +289,7 @@ static u8 __bnep_rx_hlen[] = {
 	ETH_ALEN + 2  /* BNEP_COMPRESSED_DST_ONLY */
 };
 
-static inline int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)
+static int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)
 {
 	struct net_device *dev = s->dev;
 	struct sk_buff *nskb;
@@ -404,7 +387,7 @@ static u8 __bnep_tx_types[] = {
 	BNEP_COMPRESSED
 };
 
-static inline int bnep_tx_frame(struct bnep_session *s, struct sk_buff *skb)
+static int bnep_tx_frame(struct bnep_session *s, struct sk_buff *skb)
 {
 	struct ethhdr *eh = (void *) skb->data;
 	struct socket *sock = s->sock;
diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
index bc4086480d9..98f86f91d47 100644
--- a/net/bluetooth/bnep/netdev.c
+++ b/net/bluetooth/bnep/netdev.c
@@ -25,16 +25,8 @@
    SOFTWARE IS DISCLAIMED.
 */
 
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include <linux/socket.h>
-#include <linux/netdevice.h>
+#include <linux/export.h>
 #include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/wait.h>
-
-#include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -128,7 +120,7 @@ static void bnep_net_timeout(struct net_device *dev)
 }
 
 #ifdef CONFIG_BT_BNEP_MC_FILTER
-static inline int bnep_net_mc_filter(struct sk_buff *skb, struct bnep_session *s)
+static int bnep_net_mc_filter(struct sk_buff *skb, struct bnep_session *s)
 {
 	struct ethhdr *eh = (void *) skb->data;
 
@@ -140,7 +132,7 @@ static inline int bnep_net_mc_filter(struct sk_buff *skb, struct bnep_session *s
 
 #ifdef CONFIG_BT_BNEP_PROTO_FILTER
 /* Determine ether protocol. Based on eth_type_trans. */
-static inline u16 bnep_net_eth_proto(struct sk_buff *skb)
+static u16 bnep_net_eth_proto(struct sk_buff *skb)
 {
 	struct ethhdr *eh = (void *) skb->data;
 	u16 proto = ntohs(eh->h_proto);
@@ -154,7 +146,7 @@ static inline u16 bnep_net_eth_proto(struct sk_buff *skb)
 	return ETH_P_802_2;
 }
 
-static inline int bnep_net_proto_filter(struct sk_buff *skb, struct bnep_session *s)
+static int bnep_net_proto_filter(struct sk_buff *skb, struct bnep_session *s)
 {
 	u16 proto = bnep_net_eth_proto(skb);
 	struct bnep_proto_filter *f = s->proto_filter;
diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c
index 180bfc45810..5e5f5b410e0 100644
--- a/net/bluetooth/bnep/sock.c
+++ b/net/bluetooth/bnep/sock.c
@@ -24,24 +24,8 @@
    SOFTWARE IS DISCLAIMED.
 */
 
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/skbuff.h>
-#include <linux/socket.h>
-#include <linux/ioctl.h>
+#include <linux/export.h>
 #include <linux/file.h>
-#include <linux/init.h>
-#include <linux/compat.h>
-#include <linux/gfp.h>
-#include <linux/uaccess.h>
-#include <net/sock.h>
-
 
 #include "bnep.h"
 
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 3f18a6ed973..2fcced377e5 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -24,24 +24,11 @@
 
 /* Bluetooth HCI connection handling. */
 
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/interrupt.h>
-#include <net/sock.h>
-
-#include <linux/uaccess.h>
-#include <asm/unaligned.h>
+#include <linux/export.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/a2mp.h>
 
 static void hci_le_connect(struct hci_conn *conn)
 {
@@ -54,15 +41,15 @@ static void hci_le_connect(struct hci_conn *conn)
 	conn->sec_level = BT_SECURITY_LOW;
 
 	memset(&cp, 0, sizeof(cp));
-	cp.scan_interval = cpu_to_le16(0x0060);
-	cp.scan_window = cpu_to_le16(0x0030);
+	cp.scan_interval = __constant_cpu_to_le16(0x0060);
+	cp.scan_window = __constant_cpu_to_le16(0x0030);
 	bacpy(&cp.peer_addr, &conn->dst);
 	cp.peer_addr_type = conn->dst_type;
-	cp.conn_interval_min = cpu_to_le16(0x0028);
-	cp.conn_interval_max = cpu_to_le16(0x0038);
-	cp.supervision_timeout = cpu_to_le16(0x002a);
-	cp.min_ce_len = cpu_to_le16(0x0000);
-	cp.max_ce_len = cpu_to_le16(0x0000);
+	cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
+	cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
+	cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
+	cp.min_ce_len = __constant_cpu_to_le16(0x0000);
+	cp.max_ce_len = __constant_cpu_to_le16(0x0000);
 
 	hci_send_cmd(hdev, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
 }
@@ -99,7 +86,7 @@ void hci_acl_connect(struct hci_conn *conn)
 			cp.pscan_rep_mode = ie->data.pscan_rep_mode;
 			cp.pscan_mode     = ie->data.pscan_mode;
 			cp.clock_offset   = ie->data.clock_offset |
-							cpu_to_le16(0x8000);
+					    __constant_cpu_to_le16(0x8000);
 		}
 
 		memcpy(conn->dev_class, ie->data.dev_class, 3);
@@ -175,9 +162,9 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
 	cp.handle   = cpu_to_le16(handle);
 	cp.pkt_type = cpu_to_le16(conn->pkt_type);
 
-	cp.tx_bandwidth   = cpu_to_le32(0x00001f40);
-	cp.rx_bandwidth   = cpu_to_le32(0x00001f40);
-	cp.max_latency    = cpu_to_le16(0xffff);
+	cp.tx_bandwidth   = __constant_cpu_to_le32(0x00001f40);
+	cp.rx_bandwidth   = __constant_cpu_to_le32(0x00001f40);
+	cp.max_latency    = __constant_cpu_to_le16(0xffff);
 	cp.voice_setting  = cpu_to_le16(hdev->voice_setting);
 	cp.retrans_effort = 0xff;
 
@@ -185,7 +172,7 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
 }
 
 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
-					u16 latency, u16 to_multiplier)
+			u16 latency, u16 to_multiplier)
 {
 	struct hci_cp_le_conn_update cp;
 	struct hci_dev *hdev = conn->hdev;
@@ -197,15 +184,14 @@ void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 	cp.conn_interval_max	= cpu_to_le16(max);
 	cp.conn_latency		= cpu_to_le16(latency);
 	cp.supervision_timeout	= cpu_to_le16(to_multiplier);
-	cp.min_ce_len		= cpu_to_le16(0x0001);
-	cp.max_ce_len		= cpu_to_le16(0x0001);
+	cp.min_ce_len		= __constant_cpu_to_le16(0x0001);
+	cp.max_ce_len		= __constant_cpu_to_le16(0x0001);
 
 	hci_send_cmd(hdev, HCI_OP_LE_CONN_UPDATE, sizeof(cp), &cp);
 }
-EXPORT_SYMBOL(hci_le_conn_update);
 
 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
-							__u8 ltk[16])
+		      __u8 ltk[16])
 {
 	struct hci_dev *hdev = conn->hdev;
 	struct hci_cp_le_start_enc cp;
@@ -221,7 +207,6 @@ void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
 
 	hci_send_cmd(hdev, HCI_OP_LE_START_ENC, sizeof(cp), &cp);
 }
-EXPORT_SYMBOL(hci_le_start_enc);
 
 /* Device _must_ be locked */
 void hci_sco_setup(struct hci_conn *conn, __u8 status)
@@ -247,7 +232,7 @@ void hci_sco_setup(struct hci_conn *conn, __u8 status)
 static void hci_conn_timeout(struct work_struct *work)
 {
 	struct hci_conn *conn = container_of(work, struct hci_conn,
-							disc_work.work);
+					     disc_work.work);
 	__u8 reason;
 
 	BT_DBG("conn %p state %s", conn, state_to_string(conn->state));
@@ -295,9 +280,9 @@ static void hci_conn_enter_sniff_mode(struct hci_conn *conn)
 	if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) {
 		struct hci_cp_sniff_subrate cp;
 		cp.handle             = cpu_to_le16(conn->handle);
-		cp.max_latency        = cpu_to_le16(0);
-		cp.min_remote_timeout = cpu_to_le16(0);
-		cp.min_local_timeout  = cpu_to_le16(0);
+		cp.max_latency        = __constant_cpu_to_le16(0);
+		cp.min_remote_timeout = __constant_cpu_to_le16(0);
+		cp.min_local_timeout  = __constant_cpu_to_le16(0);
 		hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp);
 	}
 
@@ -306,8 +291,8 @@ static void hci_conn_enter_sniff_mode(struct hci_conn *conn)
 		cp.handle       = cpu_to_le16(conn->handle);
 		cp.max_interval = cpu_to_le16(hdev->sniff_max_interval);
 		cp.min_interval = cpu_to_le16(hdev->sniff_min_interval);
-		cp.attempt      = cpu_to_le16(4);
-		cp.timeout      = cpu_to_le16(1);
+		cp.attempt      = __constant_cpu_to_le16(4);
+		cp.timeout      = __constant_cpu_to_le16(1);
 		hci_send_cmd(hdev, HCI_OP_SNIFF_MODE, sizeof(cp), &cp);
 	}
 }
@@ -327,7 +312,7 @@ static void hci_conn_auto_accept(unsigned long arg)
 	struct hci_dev *hdev = conn->hdev;
 
 	hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst),
-								&conn->dst);
+		     &conn->dst);
 }
 
 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
@@ -376,7 +361,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
 	INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout);
 	setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn);
 	setup_timer(&conn->auto_accept_timer, hci_conn_auto_accept,
-							(unsigned long) conn);
+		    (unsigned long) conn);
 
 	atomic_set(&conn->refcnt, 0);
 
@@ -425,9 +410,11 @@ int hci_conn_del(struct hci_conn *conn)
 		}
 	}
 
-
 	hci_chan_list_flush(conn);
 
+	if (conn->amp_mgr)
+		amp_mgr_put(conn->amp_mgr);
+
 	hci_conn_hash_del(hdev, conn);
 	if (hdev->notify)
 		hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
@@ -454,7 +441,8 @@ struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src)
 	read_lock(&hci_dev_list_lock);
 
 	list_for_each_entry(d, &hci_dev_list, list) {
-		if (!test_bit(HCI_UP, &d->flags) || test_bit(HCI_RAW, &d->flags))
+		if (!test_bit(HCI_UP, &d->flags) ||
+		    test_bit(HCI_RAW, &d->flags))
 			continue;
 
 		/* Simple routing:
@@ -495,6 +483,11 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 	if (type == LE_LINK) {
 		le = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
 		if (!le) {
+			le = hci_conn_hash_lookup_state(hdev, LE_LINK,
+							BT_CONNECT);
+			if (le)
+				return ERR_PTR(-EBUSY);
+
 			le = hci_conn_add(hdev, LE_LINK, dst);
 			if (!le)
 				return ERR_PTR(-ENOMEM);
@@ -545,7 +538,7 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 	hci_conn_hold(sco);
 
 	if (acl->state == BT_CONNECTED &&
-			(sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
+	    (sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
 		set_bit(HCI_CONN_POWER_SAVE, &acl->flags);
 		hci_conn_enter_active_mode(acl, BT_POWER_FORCE_ACTIVE_ON);
 
@@ -560,7 +553,6 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 
 	return sco;
 }
-EXPORT_SYMBOL(hci_connect);
 
 /* Check link security requirement */
 int hci_conn_check_link_mode(struct hci_conn *conn)
@@ -572,7 +564,6 @@ int hci_conn_check_link_mode(struct hci_conn *conn)
 
 	return 1;
 }
-EXPORT_SYMBOL(hci_conn_check_link_mode);
 
 /* Authenticate remote device */
 static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
@@ -600,7 +591,7 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
 
 		cp.handle = cpu_to_le16(conn->handle);
 		hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
-							sizeof(cp), &cp);
+			     sizeof(cp), &cp);
 		if (conn->key_type != 0xff)
 			set_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
 	}
@@ -618,7 +609,7 @@ static void hci_conn_encrypt(struct hci_conn *conn)
 		cp.handle  = cpu_to_le16(conn->handle);
 		cp.encrypt = 0x01;
 		hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
-									&cp);
+			     &cp);
 	}
 }
 
@@ -648,8 +639,7 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
 	/* An unauthenticated combination key has sufficient security for
 	   security level 1 and 2. */
 	if (conn->key_type == HCI_LK_UNAUTH_COMBINATION &&
-			(sec_level == BT_SECURITY_MEDIUM ||
-			sec_level == BT_SECURITY_LOW))
+	    (sec_level == BT_SECURITY_MEDIUM || sec_level == BT_SECURITY_LOW))
 		goto encrypt;
 
 	/* A combination key has always sufficient security for the security
@@ -657,8 +647,7 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
 	   is generated using maximum PIN code length (16).
 	   For pre 2.1 units. */
 	if (conn->key_type == HCI_LK_COMBINATION &&
-			(sec_level != BT_SECURITY_HIGH ||
-			conn->pin_length == 16))
+	    (sec_level != BT_SECURITY_HIGH || conn->pin_length == 16))
 		goto encrypt;
 
 auth:
@@ -701,12 +690,11 @@ int hci_conn_change_link_key(struct hci_conn *conn)
 		struct hci_cp_change_conn_link_key cp;
 		cp.handle = cpu_to_le16(conn->handle);
 		hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY,
-							sizeof(cp), &cp);
+			     sizeof(cp), &cp);
 	}
 
 	return 0;
 }
-EXPORT_SYMBOL(hci_conn_change_link_key);
 
 /* Switch role */
 int hci_conn_switch_role(struct hci_conn *conn, __u8 role)
@@ -752,7 +740,7 @@ void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active)
 timer:
 	if (hdev->idle_timeout > 0)
 		mod_timer(&conn->idle_timer,
-			jiffies + msecs_to_jiffies(hdev->idle_timeout));
+			  jiffies + msecs_to_jiffies(hdev->idle_timeout));
 }
 
 /* Drop all connection on the device */
@@ -802,7 +790,7 @@ EXPORT_SYMBOL(hci_conn_put_device);
 
 int hci_get_conn_list(void __user *arg)
 {
-	register struct hci_conn *c;
+	struct hci_conn *c;
 	struct hci_conn_list_req req, *cl;
 	struct hci_conn_info *ci;
 	struct hci_dev *hdev;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 411ace8e647..08994ecc3b6 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -25,28 +25,10 @@
 
 /* Bluetooth HCI core. */
 
-#include <linux/jiffies.h>
-#include <linux/module.h>
-#include <linux/kmod.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/workqueue.h>
-#include <linux/interrupt.h>
-#include <linux/rfkill.h>
-#include <linux/timer.h>
-#include <linux/crypto.h>
-#include <net/sock.h>
+#include <linux/export.h>
+#include <linux/idr.h>
 
-#include <linux/uaccess.h>
-#include <asm/unaligned.h>
+#include <linux/rfkill.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -65,6 +47,9 @@ DEFINE_RWLOCK(hci_dev_list_lock);
 LIST_HEAD(hci_cb_list);
 DEFINE_RWLOCK(hci_cb_list_lock);
 
+/* HCI ID Numbering */
+static DEFINE_IDA(hci_index_ida);
+
 /* ---- HCI notifications ---- */
 
 static void hci_notify(struct hci_dev *hdev, int event)
@@ -124,8 +109,9 @@ static void hci_req_cancel(struct hci_dev *hdev, int err)
 }
 
 /* Execute request and wait for completion. */
-static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
-					unsigned long opt, __u32 timeout)
+static int __hci_request(struct hci_dev *hdev,
+			 void (*req)(struct hci_dev *hdev, unsigned long opt),
+			 unsigned long opt, __u32 timeout)
 {
 	DECLARE_WAITQUEUE(wait, current);
 	int err = 0;
@@ -166,8 +152,9 @@ static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev,
 	return err;
 }
 
-static inline int hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
-					unsigned long opt, __u32 timeout)
+static int hci_request(struct hci_dev *hdev,
+		       void (*req)(struct hci_dev *hdev, unsigned long opt),
+		       unsigned long opt, __u32 timeout)
 {
 	int ret;
 
@@ -202,7 +189,7 @@ static void bredr_init(struct hci_dev *hdev)
 	/* Mandatory initialization */
 
 	/* Reset */
-	if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks)) {
+	if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) {
 		set_bit(HCI_RESET, &hdev->flags);
 		hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
 	}
@@ -235,7 +222,7 @@ static void bredr_init(struct hci_dev *hdev)
 	hci_send_cmd(hdev, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
 
 	/* Connection accept timeout ~20 secs */
-	param = cpu_to_le16(0x7d00);
+	param = __constant_cpu_to_le16(0x7d00);
 	hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
 
 	bacpy(&cp.bdaddr, BDADDR_ANY);
@@ -417,7 +404,8 @@ static void inquiry_cache_flush(struct hci_dev *hdev)
 	INIT_LIST_HEAD(&cache->resolve);
 }
 
-struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr)
+struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
+					       bdaddr_t *bdaddr)
 {
 	struct discovery_state *cache = &hdev->discovery;
 	struct inquiry_entry *e;
@@ -478,7 +466,7 @@ void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 
 	list_for_each_entry(p, &cache->resolve, list) {
 		if (p->name_state != NAME_PENDING &&
-				abs(p->data.rssi) >= abs(ie->data.rssi))
+		    abs(p->data.rssi) >= abs(ie->data.rssi))
 			break;
 		pos = &p->list;
 	}
@@ -503,7 +491,7 @@ bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 			*ssp = true;
 
 		if (ie->name_state == NAME_NEEDED &&
-						data->rssi != ie->data.rssi) {
+		    data->rssi != ie->data.rssi) {
 			ie->data.rssi = data->rssi;
 			hci_inquiry_cache_update_resolve(hdev, ie);
 		}
@@ -527,7 +515,7 @@ bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 
 update:
 	if (name_known && ie->name_state != NAME_KNOWN &&
-					ie->name_state != NAME_PENDING) {
+	    ie->name_state != NAME_PENDING) {
 		ie->name_state = NAME_KNOWN;
 		list_del(&ie->list);
 	}
@@ -605,8 +593,7 @@ int hci_inquiry(void __user *arg)
 
 	hci_dev_lock(hdev);
 	if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
-				inquiry_cache_empty(hdev) ||
-				ir.flags & IREQ_CACHE_FLUSH) {
+	    inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) {
 		inquiry_cache_flush(hdev);
 		do_inquiry = 1;
 	}
@@ -620,7 +607,9 @@ int hci_inquiry(void __user *arg)
 			goto done;
 	}
 
-	/* for unlimited number of responses we will use buffer with 255 entries */
+	/* for unlimited number of responses we will use buffer with
+	 * 255 entries
+	 */
 	max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp;
 
 	/* cache_dump can't sleep. Therefore we allocate temp buffer and then
@@ -641,7 +630,7 @@ int hci_inquiry(void __user *arg)
 	if (!copy_to_user(ptr, &ir, sizeof(ir))) {
 		ptr += sizeof(ir);
 		if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) *
-					ir.num_rsp))
+				 ir.num_rsp))
 			err = -EFAULT;
 	} else
 		err = -EFAULT;
@@ -702,11 +691,11 @@ int hci_dev_open(__u16 dev)
 		hdev->init_last_cmd = 0;
 
 		ret = __hci_request(hdev, hci_init_req, 0,
-					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+				    msecs_to_jiffies(HCI_INIT_TIMEOUT));
 
 		if (lmp_host_le_capable(hdev))
 			ret = __hci_request(hdev, hci_le_init_req, 0,
-					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+					    msecs_to_jiffies(HCI_INIT_TIMEOUT));
 
 		clear_bit(HCI_INIT, &hdev->flags);
 	}
@@ -791,10 +780,10 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	skb_queue_purge(&hdev->cmd_q);
 	atomic_set(&hdev->cmd_cnt, 1);
 	if (!test_bit(HCI_RAW, &hdev->flags) &&
-				test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks)) {
+	    test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) {
 		set_bit(HCI_INIT, &hdev->flags);
 		__hci_request(hdev, hci_reset_req, 0,
-					msecs_to_jiffies(250));
+			      msecs_to_jiffies(250));
 		clear_bit(HCI_INIT, &hdev->flags);
 	}
 
@@ -884,7 +873,7 @@ int hci_dev_reset(__u16 dev)
 
 	if (!test_bit(HCI_RAW, &hdev->flags))
 		ret = __hci_request(hdev, hci_reset_req, 0,
-					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+				    msecs_to_jiffies(HCI_INIT_TIMEOUT));
 
 done:
 	hci_req_unlock(hdev);
@@ -924,7 +913,7 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 	switch (cmd) {
 	case HCISETAUTH:
 		err = hci_request(hdev, hci_auth_req, dr.dev_opt,
-					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+				  msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 
 	case HCISETENCRYPT:
@@ -936,23 +925,23 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 		if (!test_bit(HCI_AUTH, &hdev->flags)) {
 			/* Auth must be enabled first */
 			err = hci_request(hdev, hci_auth_req, dr.dev_opt,
-					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+					  msecs_to_jiffies(HCI_INIT_TIMEOUT));
 			if (err)
 				break;
 		}
 
 		err = hci_request(hdev, hci_encrypt_req, dr.dev_opt,
-					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+				  msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 
 	case HCISETSCAN:
 		err = hci_request(hdev, hci_scan_req, dr.dev_opt,
-					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+				  msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 
 	case HCISETLINKPOL:
 		err = hci_request(hdev, hci_linkpol_req, dr.dev_opt,
-					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+				  msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 
 	case HCISETLINKMODE:
@@ -1103,7 +1092,7 @@ static void hci_power_on(struct work_struct *work)
 
 	if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
 		schedule_delayed_work(&hdev->power_off,
-					msecs_to_jiffies(AUTO_OFF_TIMEOUT));
+				      msecs_to_jiffies(AUTO_OFF_TIMEOUT));
 
 	if (test_and_clear_bit(HCI_SETUP, &hdev->dev_flags))
 		mgmt_index_added(hdev);
@@ -1112,7 +1101,7 @@ static void hci_power_on(struct work_struct *work)
 static void hci_power_off(struct work_struct *work)
 {
 	struct hci_dev *hdev = container_of(work, struct hci_dev,
-							power_off.work);
+					    power_off.work);
 
 	BT_DBG("%s", hdev->name);
 
@@ -1193,7 +1182,7 @@ struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
 }
 
 static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn,
-						u8 key_type, u8 old_key_type)
+			       u8 key_type, u8 old_key_type)
 {
 	/* Legacy key */
 	if (key_type < 0x03)
@@ -1234,7 +1223,7 @@ struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8])
 
 	list_for_each_entry(k, &hdev->long_term_keys, list) {
 		if (k->ediv != ediv ||
-				memcmp(rand, k->rand, sizeof(k->rand)))
+		    memcmp(rand, k->rand, sizeof(k->rand)))
 			continue;
 
 		return k;
@@ -1242,7 +1231,6 @@ struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8])
 
 	return NULL;
 }
-EXPORT_SYMBOL(hci_find_ltk);
 
 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
 				     u8 addr_type)
@@ -1251,12 +1239,11 @@ struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
 
 	list_for_each_entry(k, &hdev->long_term_keys, list)
 		if (addr_type == k->bdaddr_type &&
-					bacmp(bdaddr, &k->bdaddr) == 0)
+		    bacmp(bdaddr, &k->bdaddr) == 0)
 			return k;
 
 	return NULL;
 }
-EXPORT_SYMBOL(hci_find_ltk_by_addr);
 
 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)
@@ -1283,15 +1270,14 @@ int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
 	 * combination key for legacy pairing even when there's no
 	 * previous key */
 	if (type == HCI_LK_CHANGED_COMBINATION &&
-					(!conn || conn->remote_auth == 0xff) &&
-					old_key_type == 0xff) {
+	    (!conn || conn->remote_auth == 0xff) && old_key_type == 0xff) {
 		type = HCI_LK_COMBINATION;
 		if (conn)
 			conn->key_type = type;
 	}
 
 	bacpy(&key->bdaddr, bdaddr);
-	memcpy(key->val, val, 16);
+	memcpy(key->val, val, HCI_LINK_KEY_SIZE);
 	key->pin_len = pin_len;
 
 	if (type == HCI_LK_CHANGED_COMBINATION)
@@ -1540,6 +1526,7 @@ static void le_scan_enable_req(struct hci_dev *hdev, unsigned long opt)
 
 	memset(&cp, 0, sizeof(cp));
 	cp.enable = 1;
+	cp.filter_dup = 1;
 
 	hci_send_cmd(hdev, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
 }
@@ -1707,41 +1694,39 @@ EXPORT_SYMBOL(hci_free_dev);
 /* Register HCI device */
 int hci_register_dev(struct hci_dev *hdev)
 {
-	struct list_head *head, *p;
 	int id, error;
 
 	if (!hdev->open || !hdev->close)
 		return -EINVAL;
 
-	write_lock(&hci_dev_list_lock);
-
 	/* Do not allow HCI_AMP devices to register at index 0,
 	 * so the index can be used as the AMP controller ID.
 	 */
-	id = (hdev->dev_type == HCI_BREDR) ? 0 : 1;
-	head = &hci_dev_list;
-
-	/* Find first available device id */
-	list_for_each(p, &hci_dev_list) {
-		int nid = list_entry(p, struct hci_dev, list)->id;
-		if (nid > id)
-			break;
-		if (nid == id)
-			id++;
-		head = p;
+	switch (hdev->dev_type) {
+	case HCI_BREDR:
+		id = ida_simple_get(&hci_index_ida, 0, 0, GFP_KERNEL);
+		break;
+	case HCI_AMP:
+		id = ida_simple_get(&hci_index_ida, 1, 0, GFP_KERNEL);
+		break;
+	default:
+		return -EINVAL;
 	}
 
+	if (id < 0)
+		return id;
+
 	sprintf(hdev->name, "hci%d", id);
 	hdev->id = id;
 
 	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
 
-	list_add(&hdev->list, head);
-
+	write_lock(&hci_dev_list_lock);
+	list_add(&hdev->list, &hci_dev_list);
 	write_unlock(&hci_dev_list_lock);
 
 	hdev->workqueue = alloc_workqueue(hdev->name, WQ_HIGHPRI | WQ_UNBOUND |
-							WQ_MEM_RECLAIM, 1);
+					  WQ_MEM_RECLAIM, 1);
 	if (!hdev->workqueue) {
 		error = -ENOMEM;
 		goto err;
@@ -1752,7 +1737,8 @@ int hci_register_dev(struct hci_dev *hdev)
 		goto err_wqueue;
 
 	hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
-				RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, hdev);
+				    RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops,
+				    hdev);
 	if (hdev->rfkill) {
 		if (rfkill_register(hdev->rfkill) < 0) {
 			rfkill_destroy(hdev->rfkill);
@@ -1772,6 +1758,7 @@ int hci_register_dev(struct hci_dev *hdev)
 err_wqueue:
 	destroy_workqueue(hdev->workqueue);
 err:
+	ida_simple_remove(&hci_index_ida, hdev->id);
 	write_lock(&hci_dev_list_lock);
 	list_del(&hdev->list);
 	write_unlock(&hci_dev_list_lock);
@@ -1783,12 +1770,14 @@ EXPORT_SYMBOL(hci_register_dev);
 /* Unregister HCI device */
 void hci_unregister_dev(struct hci_dev *hdev)
 {
-	int i;
+	int i, id;
 
 	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
 
 	set_bit(HCI_UNREGISTER, &hdev->dev_flags);
 
+	id = hdev->id;
+
 	write_lock(&hci_dev_list_lock);
 	list_del(&hdev->list);
 	write_unlock(&hci_dev_list_lock);
@@ -1799,7 +1788,7 @@ void hci_unregister_dev(struct hci_dev *hdev)
 		kfree_skb(hdev->reassembly[i]);
 
 	if (!test_bit(HCI_INIT, &hdev->flags) &&
-				!test_bit(HCI_SETUP, &hdev->dev_flags)) {
+	    !test_bit(HCI_SETUP, &hdev->dev_flags)) {
 		hci_dev_lock(hdev);
 		mgmt_index_removed(hdev);
 		hci_dev_unlock(hdev);
@@ -1829,6 +1818,8 @@ void hci_unregister_dev(struct hci_dev *hdev)
 	hci_dev_unlock(hdev);
 
 	hci_dev_put(hdev);
+
+	ida_simple_remove(&hci_index_ida, id);
 }
 EXPORT_SYMBOL(hci_unregister_dev);
 
@@ -1853,7 +1844,7 @@ int hci_recv_frame(struct sk_buff *skb)
 {
 	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
-				&& !test_bit(HCI_INIT, &hdev->flags))) {
+		      && !test_bit(HCI_INIT, &hdev->flags))) {
 		kfree_skb(skb);
 		return -ENXIO;
 	}
@@ -1872,7 +1863,7 @@ int hci_recv_frame(struct sk_buff *skb)
 EXPORT_SYMBOL(hci_recv_frame);
 
 static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
-						  int count, __u8 index)
+			  int count, __u8 index)
 {
 	int len = 0;
 	int hlen = 0;
@@ -1881,7 +1872,7 @@ static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
 	struct bt_skb_cb *scb;
 
 	if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) ||
-				index >= NUM_REASSEMBLY)
+	    index >= NUM_REASSEMBLY)
 		return -EILSEQ;
 
 	skb = hdev->reassembly[index];
@@ -2023,7 +2014,7 @@ int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count)
 			type = bt_cb(skb)->pkt_type;
 
 		rem = hci_reassembly(hdev, type, data, count,
-							STREAM_REASSEMBLY);
+				     STREAM_REASSEMBLY);
 		if (rem < 0)
 			return rem;
 
@@ -2157,7 +2148,7 @@ static void hci_add_acl_hdr(struct sk_buff *skb, __u16 handle, __u16 flags)
 }
 
 static void hci_queue_acl(struct hci_conn *conn, struct sk_buff_head *queue,
-				struct sk_buff *skb, __u16 flags)
+			  struct sk_buff *skb, __u16 flags)
 {
 	struct hci_dev *hdev = conn->hdev;
 	struct sk_buff *list;
@@ -2216,7 +2207,6 @@ void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags)
 
 	queue_work(hdev->workqueue, &hdev->tx_work);
 }
-EXPORT_SYMBOL(hci_send_acl);
 
 /* Send SCO data */
 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
@@ -2239,12 +2229,12 @@ void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
 	skb_queue_tail(&conn->data_q, skb);
 	queue_work(hdev->workqueue, &hdev->tx_work);
 }
-EXPORT_SYMBOL(hci_send_sco);
 
 /* ---- HCI TX task (outgoing data) ---- */
 
 /* HCI Connection scheduler */
-static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int *quote)
+static struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type,
+				     int *quote)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	struct hci_conn *conn = NULL, *c;
@@ -2303,7 +2293,7 @@ static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int
 	return conn;
 }
 
-static inline void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
+static void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	struct hci_conn *c;
@@ -2316,16 +2306,16 @@ static inline void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
 	list_for_each_entry_rcu(c, &h->list, list) {
 		if (c->type == type && c->sent) {
 			BT_ERR("%s killing stalled connection %s",
-				hdev->name, batostr(&c->dst));
-			hci_acl_disconn(c, 0x13);
+			       hdev->name, batostr(&c->dst));
+			hci_acl_disconn(c, HCI_ERROR_REMOTE_USER_TERM);
 		}
 	}
 
 	rcu_read_unlock();
 }
 
-static inline struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type,
-						int *quote)
+static struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type,
+				      int *quote)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	struct hci_chan *chan = NULL;
@@ -2442,7 +2432,7 @@ static void hci_prio_recalculate(struct hci_dev *hdev, __u8 type)
 			skb->priority = HCI_PRIO_MAX - 1;
 
 			BT_DBG("chan %p skb %p promoted to %d", chan, skb,
-								skb->priority);
+			       skb->priority);
 		}
 
 		if (hci_conn_num(hdev, type) == num)
@@ -2459,18 +2449,18 @@ static inline int __get_blocks(struct hci_dev *hdev, struct sk_buff *skb)
 	return DIV_ROUND_UP(skb->len - HCI_ACL_HDR_SIZE, hdev->block_len);
 }
 
-static inline void __check_timeout(struct hci_dev *hdev, unsigned int cnt)
+static void __check_timeout(struct hci_dev *hdev, unsigned int cnt)
 {
 	if (!test_bit(HCI_RAW, &hdev->flags)) {
 		/* ACL tx timeout must be longer than maximum
 		 * link supervision timeout (40.9 seconds) */
 		if (!cnt && time_after(jiffies, hdev->acl_last_tx +
-					msecs_to_jiffies(HCI_ACL_TX_TIMEOUT)))
+				       msecs_to_jiffies(HCI_ACL_TX_TIMEOUT)))
 			hci_link_tx_to(hdev, ACL_LINK);
 	}
 }
 
-static inline void hci_sched_acl_pkt(struct hci_dev *hdev)
+static void hci_sched_acl_pkt(struct hci_dev *hdev)
 {
 	unsigned int cnt = hdev->acl_cnt;
 	struct hci_chan *chan;
@@ -2480,11 +2470,11 @@ static inline void hci_sched_acl_pkt(struct hci_dev *hdev)
 	__check_timeout(hdev, cnt);
 
 	while (hdev->acl_cnt &&
-			(chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
+	       (chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
 		u32 priority = (skb_peek(&chan->data_q))->priority;
 		while (quote-- && (skb = skb_peek(&chan->data_q))) {
 			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
-					skb->len, skb->priority);
+			       skb->len, skb->priority);
 
 			/* Stop if priority has changed */
 			if (skb->priority < priority)
@@ -2508,7 +2498,7 @@ static inline void hci_sched_acl_pkt(struct hci_dev *hdev)
 		hci_prio_recalculate(hdev, ACL_LINK);
 }
 
-static inline void hci_sched_acl_blk(struct hci_dev *hdev)
+static void hci_sched_acl_blk(struct hci_dev *hdev)
 {
 	unsigned int cnt = hdev->block_cnt;
 	struct hci_chan *chan;
@@ -2518,13 +2508,13 @@ static inline void hci_sched_acl_blk(struct hci_dev *hdev)
 	__check_timeout(hdev, cnt);
 
 	while (hdev->block_cnt > 0 &&
-			(chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
+	       (chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
 		u32 priority = (skb_peek(&chan->data_q))->priority;
 		while (quote > 0 && (skb = skb_peek(&chan->data_q))) {
 			int blocks;
 
 			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
-						skb->len, skb->priority);
+			       skb->len, skb->priority);
 
 			/* Stop if priority has changed */
 			if (skb->priority < priority)
@@ -2537,7 +2527,7 @@ static inline void hci_sched_acl_blk(struct hci_dev *hdev)
 				return;
 
 			hci_conn_enter_active_mode(chan->conn,
-						bt_cb(skb)->force_active);
+						   bt_cb(skb)->force_active);
 
 			hci_send_frame(skb);
 			hdev->acl_last_tx = jiffies;
@@ -2554,7 +2544,7 @@ static inline void hci_sched_acl_blk(struct hci_dev *hdev)
 		hci_prio_recalculate(hdev, ACL_LINK);
 }
 
-static inline void hci_sched_acl(struct hci_dev *hdev)
+static void hci_sched_acl(struct hci_dev *hdev)
 {
 	BT_DBG("%s", hdev->name);
 
@@ -2573,7 +2563,7 @@ static inline void hci_sched_acl(struct hci_dev *hdev)
 }
 
 /* Schedule SCO */
-static inline void hci_sched_sco(struct hci_dev *hdev)
+static void hci_sched_sco(struct hci_dev *hdev)
 {
 	struct hci_conn *conn;
 	struct sk_buff *skb;
@@ -2596,7 +2586,7 @@ static inline void hci_sched_sco(struct hci_dev *hdev)
 	}
 }
 
-static inline void hci_sched_esco(struct hci_dev *hdev)
+static void hci_sched_esco(struct hci_dev *hdev)
 {
 	struct hci_conn *conn;
 	struct sk_buff *skb;
@@ -2607,7 +2597,8 @@ static inline void hci_sched_esco(struct hci_dev *hdev)
 	if (!hci_conn_num(hdev, ESCO_LINK))
 		return;
 
-	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, &quote))) {
+	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK,
+						     &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
 			hci_send_frame(skb);
@@ -2619,7 +2610,7 @@ static inline void hci_sched_esco(struct hci_dev *hdev)
 	}
 }
 
-static inline void hci_sched_le(struct hci_dev *hdev)
+static void hci_sched_le(struct hci_dev *hdev)
 {
 	struct hci_chan *chan;
 	struct sk_buff *skb;
@@ -2634,7 +2625,7 @@ static inline void hci_sched_le(struct hci_dev *hdev)
 		/* LE tx timeout must be longer than maximum
 		 * link supervision timeout (40.9 seconds) */
 		if (!hdev->le_cnt && hdev->le_pkts &&
-				time_after(jiffies, hdev->le_last_tx + HZ * 45))
+		    time_after(jiffies, hdev->le_last_tx + HZ * 45))
 			hci_link_tx_to(hdev, LE_LINK);
 	}
 
@@ -2644,7 +2635,7 @@ static inline void hci_sched_le(struct hci_dev *hdev)
 		u32 priority = (skb_peek(&chan->data_q))->priority;
 		while (quote-- && (skb = skb_peek(&chan->data_q))) {
 			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
-					skb->len, skb->priority);
+			       skb->len, skb->priority);
 
 			/* Stop if priority has changed */
 			if (skb->priority < priority)
@@ -2676,7 +2667,7 @@ static void hci_tx_work(struct work_struct *work)
 	struct sk_buff *skb;
 
 	BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt,
-		hdev->sco_cnt, hdev->le_cnt);
+	       hdev->sco_cnt, hdev->le_cnt);
 
 	/* Schedule queues and send stuff to HCI driver */
 
@@ -2696,7 +2687,7 @@ static void hci_tx_work(struct work_struct *work)
 /* ----- HCI RX task (incoming data processing) ----- */
 
 /* ACL data packet */
-static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_acl_hdr *hdr = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2708,7 +2699,8 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 	flags  = hci_flags(handle);
 	handle = hci_handle(handle);
 
-	BT_DBG("%s len %d handle 0x%x flags 0x%x", hdev->name, skb->len, handle, flags);
+	BT_DBG("%s len %d handle 0x%x flags 0x%x", hdev->name, skb->len,
+	       handle, flags);
 
 	hdev->stat.acl_rx++;
 
@@ -2732,14 +2724,14 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		return;
 	} else {
 		BT_ERR("%s ACL packet for unknown connection handle %d",
-			hdev->name, handle);
+		       hdev->name, handle);
 	}
 
 	kfree_skb(skb);
 }
 
 /* SCO data packet */
-static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_sco_hdr *hdr = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2763,7 +2755,7 @@ static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		return;
 	} else {
 		BT_ERR("%s SCO packet for unknown connection handle %d",
-			hdev->name, handle);
+		       hdev->name, handle);
 	}
 
 	kfree_skb(skb);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 4eefb7f65cf..1ba929c05d0 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -24,20 +24,7 @@
 
 /* Bluetooth HCI event handling. */
 
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/interrupt.h>
-#include <net/sock.h>
-
-#include <linux/uaccess.h>
+#include <linux/export.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -95,7 +82,8 @@ static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
 	hci_conn_check_pending(hdev);
 }
 
-static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev,
+					  struct sk_buff *skb)
 {
 	BT_DBG("%s", hdev->name);
 }
@@ -166,7 +154,8 @@ static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
 	hci_dev_unlock(hdev);
 }
 
-static void hci_cc_read_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cc_read_def_link_policy(struct hci_dev *hdev,
+					struct sk_buff *skb)
 {
 	struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
 
@@ -178,7 +167,8 @@ static void hci_cc_read_def_link_policy(struct hci_dev *hdev, struct sk_buff *sk
 	hdev->link_policy = __le16_to_cpu(rp->policy);
 }
 
-static void hci_cc_write_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cc_write_def_link_policy(struct hci_dev *hdev,
+					 struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
 	void *sent;
@@ -329,7 +319,7 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
 		if (hdev->discov_timeout > 0) {
 			int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
 			queue_delayed_work(hdev->workqueue, &hdev->discov_off,
-									to);
+					   to);
 		}
 	} else if (old_iscan)
 		mgmt_discoverable(hdev, 0);
@@ -358,7 +348,7 @@ static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
 	memcpy(hdev->dev_class, rp->dev_class, 3);
 
 	BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
-		hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
+	       hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
 }
 
 static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
@@ -406,7 +396,8 @@ static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
 		hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 }
 
-static void hci_cc_write_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cc_write_voice_setting(struct hci_dev *hdev,
+				       struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
 	__u16 setting;
@@ -473,7 +464,7 @@ static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
 		return 1;
 
 	if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 &&
-						hdev->lmp_subver == 0x0757)
+	    hdev->lmp_subver == 0x0757)
 		return 1;
 
 	if (hdev->manufacturer == 15) {
@@ -486,7 +477,7 @@ static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
 	}
 
 	if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 &&
-						hdev->lmp_subver == 0x1805)
+	    hdev->lmp_subver == 0x1805)
 		return 1;
 
 	return 0;
@@ -566,7 +557,7 @@ static void hci_setup(struct hci_dev *hdev)
 	if (hdev->hci_ver > BLUETOOTH_VER_1_1)
 		hci_send_cmd(hdev, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
 
-	if (hdev->features[6] & LMP_SIMPLE_PAIR) {
+	if (lmp_ssp_capable(hdev)) {
 		if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
 			u8 mode = 0x01;
 			hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE,
@@ -618,8 +609,7 @@ static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
 	hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
 
 	BT_DBG("%s manufacturer %d hci ver %d:%d", hdev->name,
-					hdev->manufacturer,
-					hdev->hci_ver, hdev->hci_rev);
+	       hdev->manufacturer, hdev->hci_ver, hdev->hci_rev);
 
 	if (test_bit(HCI_INIT, &hdev->flags))
 		hci_setup(hdev);
@@ -646,7 +636,8 @@ static void hci_setup_link_policy(struct hci_dev *hdev)
 	hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, sizeof(cp), &cp);
 }
 
-static void hci_cc_read_local_commands(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cc_read_local_commands(struct hci_dev *hdev,
+				       struct sk_buff *skb)
 {
 	struct hci_rp_read_local_commands *rp = (void *) skb->data;
 
@@ -664,7 +655,8 @@ done:
 	hci_req_complete(hdev, HCI_OP_READ_LOCAL_COMMANDS, rp->status);
 }
 
-static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cc_read_local_features(struct hci_dev *hdev,
+				       struct sk_buff *skb)
 {
 	struct hci_rp_read_local_features *rp = (void *) skb->data;
 
@@ -713,10 +705,10 @@ static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb
 		hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
 
 	BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
-					hdev->features[0], hdev->features[1],
-					hdev->features[2], hdev->features[3],
-					hdev->features[4], hdev->features[5],
-					hdev->features[6], hdev->features[7]);
+	       hdev->features[0], hdev->features[1],
+	       hdev->features[2], hdev->features[3],
+	       hdev->features[4], hdev->features[5],
+	       hdev->features[6], hdev->features[7]);
 }
 
 static void hci_set_le_support(struct hci_dev *hdev)
@@ -736,7 +728,7 @@ static void hci_set_le_support(struct hci_dev *hdev)
 }
 
 static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
-							struct sk_buff *skb)
+					   struct sk_buff *skb)
 {
 	struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
 
@@ -762,7 +754,7 @@ done:
 }
 
 static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
-						struct sk_buff *skb)
+					  struct sk_buff *skb)
 {
 	struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
 
@@ -798,9 +790,8 @@ static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
 	hdev->acl_cnt = hdev->acl_pkts;
 	hdev->sco_cnt = hdev->sco_pkts;
 
-	BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name,
-					hdev->acl_mtu, hdev->acl_pkts,
-					hdev->sco_mtu, hdev->sco_pkts);
+	BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
+	       hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
 }
 
 static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
@@ -816,7 +807,7 @@ static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
 }
 
 static void hci_cc_read_data_block_size(struct hci_dev *hdev,
-							struct sk_buff *skb)
+					struct sk_buff *skb)
 {
 	struct hci_rp_read_data_block_size *rp = (void *) skb->data;
 
@@ -832,7 +823,7 @@ static void hci_cc_read_data_block_size(struct hci_dev *hdev,
 	hdev->block_cnt = hdev->num_blocks;
 
 	BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
-					hdev->block_cnt, hdev->block_len);
+	       hdev->block_cnt, hdev->block_len);
 
 	hci_req_complete(hdev, HCI_OP_READ_DATA_BLOCK_SIZE, rp->status);
 }
@@ -847,7 +838,7 @@ static void hci_cc_write_ca_timeout(struct hci_dev *hdev, struct sk_buff *skb)
 }
 
 static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
-		struct sk_buff *skb)
+				       struct sk_buff *skb)
 {
 	struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
 
@@ -871,7 +862,7 @@ static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
 }
 
 static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
-							struct sk_buff *skb)
+					  struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
 
@@ -890,7 +881,7 @@ static void hci_cc_set_event_mask(struct hci_dev *hdev, struct sk_buff *skb)
 }
 
 static void hci_cc_write_inquiry_mode(struct hci_dev *hdev,
-							struct sk_buff *skb)
+				      struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
 
@@ -900,7 +891,7 @@ static void hci_cc_write_inquiry_mode(struct hci_dev *hdev,
 }
 
 static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
-							struct sk_buff *skb)
+					 struct sk_buff *skb)
 {
 	struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
 
@@ -959,7 +950,7 @@ static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
 
 	if (test_bit(HCI_MGMT, &hdev->dev_flags))
 		mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
-								rp->status);
+						 rp->status);
 
 	hci_dev_unlock(hdev);
 }
@@ -1000,7 +991,7 @@ static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
 }
 
 static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
-							struct sk_buff *skb)
+					  struct sk_buff *skb)
 {
 	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
 
@@ -1031,7 +1022,7 @@ static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
 }
 
 static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
-							struct sk_buff *skb)
+					  struct sk_buff *skb)
 {
 	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
 
@@ -1047,7 +1038,7 @@ static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
 }
 
 static void hci_cc_read_local_oob_data_reply(struct hci_dev *hdev,
-							struct sk_buff *skb)
+					     struct sk_buff *skb)
 {
 	struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
 
@@ -1076,7 +1067,7 @@ static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
 }
 
 static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
-					struct sk_buff *skb)
+				      struct sk_buff *skb)
 {
 	struct hci_cp_le_set_scan_enable *cp;
 	__u8 status = *((__u8 *) skb->data);
@@ -1156,8 +1147,8 @@ static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
 	hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
 }
 
-static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
-							struct sk_buff *skb)
+static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
+					   struct sk_buff *skb)
 {
 	struct hci_cp_write_le_host_supported *sent;
 	__u8 status = *((__u8 *) skb->data);
@@ -1176,13 +1167,13 @@ static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
 	}
 
 	if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
-					!test_bit(HCI_INIT, &hdev->flags))
+	    !test_bit(HCI_INIT, &hdev->flags))
 		mgmt_le_enable_complete(hdev, sent->le, status);
 
 	hci_req_complete(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, status);
 }
 
-static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
+static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 {
 	BT_DBG("%s status 0x%x", hdev->name, status);
 
@@ -1203,7 +1194,7 @@ static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
+static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
 {
 	struct hci_cp_create_conn *cp;
 	struct hci_conn *conn;
@@ -1333,7 +1324,7 @@ static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
 }
 
 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
-							struct hci_conn *conn)
+				    struct hci_conn *conn)
 {
 	if (conn->state != BT_CONFIG || !conn->out)
 		return 0;
@@ -1343,15 +1334,14 @@ static int hci_outgoing_auth_needed(struct hci_dev *hdev,
 
 	/* Only request authentication for SSP connections or non-SSP
 	 * devices with sec_level HIGH or if MITM protection is requested */
-	if (!hci_conn_ssp_enabled(conn) &&
-				conn->pending_sec_level != BT_SECURITY_HIGH &&
-				!(conn->auth_type & 0x01))
+	if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
+	    conn->pending_sec_level != BT_SECURITY_HIGH)
 		return 0;
 
 	return 1;
 }
 
-static inline int hci_resolve_name(struct hci_dev *hdev,
+static int hci_resolve_name(struct hci_dev *hdev,
 				   struct inquiry_entry *e)
 {
 	struct hci_cp_remote_name_req cp;
@@ -1638,7 +1628,7 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
 	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
 
 	BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->peer_addr),
-		conn);
+	       conn);
 
 	if (status) {
 		if (conn && conn->state == BT_CONNECT) {
@@ -1668,7 +1658,7 @@ static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
 	BT_DBG("%s status 0x%x", hdev->name, status);
 }
 
-static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
 	struct discovery_state *discov = &hdev->discovery;
@@ -1708,7 +1698,7 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct inquiry_data data;
 	struct inquiry_info *info = (void *) (skb->data + 1);
@@ -1745,7 +1735,7 @@ static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_conn_complete *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -1823,18 +1813,18 @@ unlock:
 	hci_conn_check_pending(hdev);
 }
 
-static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_conn_request *ev = (void *) skb->data;
 	int mask = hdev->link_mode;
 
-	BT_DBG("%s bdaddr %s type 0x%x", hdev->name,
-					batostr(&ev->bdaddr), ev->link_type);
+	BT_DBG("%s bdaddr %s type 0x%x", hdev->name, batostr(&ev->bdaddr),
+	       ev->link_type);
 
 	mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
 
 	if ((mask & HCI_LM_ACCEPT) &&
-			!hci_blacklist_lookup(hdev, &ev->bdaddr)) {
+	    !hci_blacklist_lookup(hdev, &ev->bdaddr)) {
 		/* Connection accepted */
 		struct inquiry_entry *ie;
 		struct hci_conn *conn;
@@ -1845,7 +1835,8 @@ static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *sk
 		if (ie)
 			memcpy(ie->data.dev_class, ev->dev_class, 3);
 
-		conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
+		conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
+					       &ev->bdaddr);
 		if (!conn) {
 			conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
 			if (!conn) {
@@ -1878,9 +1869,9 @@ static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *sk
 			bacpy(&cp.bdaddr, &ev->bdaddr);
 			cp.pkt_type = cpu_to_le16(conn->pkt_type);
 
-			cp.tx_bandwidth   = cpu_to_le32(0x00001f40);
-			cp.rx_bandwidth   = cpu_to_le32(0x00001f40);
-			cp.max_latency    = cpu_to_le16(0xffff);
+			cp.tx_bandwidth   = __constant_cpu_to_le32(0x00001f40);
+			cp.rx_bandwidth   = __constant_cpu_to_le32(0x00001f40);
+			cp.max_latency    = __constant_cpu_to_le16(0xffff);
 			cp.content_format = cpu_to_le16(hdev->voice_setting);
 			cp.retrans_effort = 0xff;
 
@@ -1897,7 +1888,7 @@ static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *sk
 	}
 }
 
-static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_disconn_complete *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -1914,10 +1905,10 @@ static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff
 		conn->state = BT_CLOSED;
 
 	if (test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags) &&
-			(conn->type == ACL_LINK || conn->type == LE_LINK)) {
+	    (conn->type == ACL_LINK || conn->type == LE_LINK)) {
 		if (ev->status != 0)
 			mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
-						conn->dst_type, ev->status);
+					       conn->dst_type, ev->status);
 		else
 			mgmt_device_disconnected(hdev, &conn->dst, conn->type,
 						 conn->dst_type);
@@ -1934,7 +1925,7 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_auth_complete *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -1949,7 +1940,7 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 
 	if (!ev->status) {
 		if (!hci_conn_ssp_enabled(conn) &&
-				test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
+		    test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
 			BT_INFO("re-auth of legacy device is not possible.");
 		} else {
 			conn->link_mode |= HCI_LM_AUTH;
@@ -1969,7 +1960,7 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 			cp.handle  = ev->handle;
 			cp.encrypt = 0x01;
 			hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
-									&cp);
+				     &cp);
 		} else {
 			conn->state = BT_CONNECTED;
 			hci_proto_connect_cfm(conn, ev->status);
@@ -1989,7 +1980,7 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 			cp.handle  = ev->handle;
 			cp.encrypt = 0x01;
 			hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
-									&cp);
+				     &cp);
 		} else {
 			clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
 			hci_encrypt_cfm(conn, ev->status, 0x00);
@@ -2000,7 +1991,7 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_remote_name *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2039,7 +2030,7 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_encrypt_change *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2082,7 +2073,8 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_change_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
+					     struct sk_buff *skb)
 {
 	struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2104,7 +2096,8 @@ static inline void hci_change_link_key_complete_evt(struct hci_dev *hdev, struct
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_remote_features_evt(struct hci_dev *hdev,
+				    struct sk_buff *skb)
 {
 	struct hci_ev_remote_features *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2128,7 +2121,7 @@ static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff
 		cp.handle = ev->handle;
 		cp.page = 0x01;
 		hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
-							sizeof(cp), &cp);
+			     sizeof(cp), &cp);
 		goto unlock;
 	}
 
@@ -2153,17 +2146,18 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	BT_DBG("%s", hdev->name);
 }
 
-static inline void hci_qos_setup_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_qos_setup_complete_evt(struct hci_dev *hdev,
+				       struct sk_buff *skb)
 {
 	BT_DBG("%s", hdev->name);
 }
 
-static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_cmd_complete *ev = (void *) skb->data;
 	__u16 opcode;
@@ -2384,7 +2378,7 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
 	}
 }
 
-static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_cmd_status *ev = (void *) skb->data;
 	__u16 opcode;
@@ -2465,7 +2459,7 @@ static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	}
 }
 
-static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_role_change *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2491,7 +2485,7 @@ static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
 	int i;
@@ -2502,7 +2496,7 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s
 	}
 
 	if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
-			ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
+	    ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
 		BT_DBG("%s bad parameters", hdev->name);
 		return;
 	}
@@ -2557,8 +2551,7 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s
 	queue_work(hdev->workqueue, &hdev->tx_work);
 }
 
-static inline void hci_num_comp_blocks_evt(struct hci_dev *hdev,
-					   struct sk_buff *skb)
+static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
 	int i;
@@ -2569,13 +2562,13 @@ static inline void hci_num_comp_blocks_evt(struct hci_dev *hdev,
 	}
 
 	if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
-			ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
+	    ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
 		BT_DBG("%s bad parameters", hdev->name);
 		return;
 	}
 
 	BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
-								ev->num_hndl);
+	       ev->num_hndl);
 
 	for (i = 0; i < ev->num_hndl; i++) {
 		struct hci_comp_blocks_info *info = &ev->handles[i];
@@ -2607,7 +2600,7 @@ static inline void hci_num_comp_blocks_evt(struct hci_dev *hdev,
 	queue_work(hdev->workqueue, &hdev->tx_work);
 }
 
-static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_mode_change *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2621,7 +2614,8 @@ static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb
 		conn->mode = ev->mode;
 		conn->interval = __le16_to_cpu(ev->interval);
 
-		if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
+		if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
+					&conn->flags)) {
 			if (conn->mode == HCI_CM_ACTIVE)
 				set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
 			else
@@ -2635,7 +2629,7 @@ static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_pin_code_req *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2656,7 +2650,7 @@ static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff
 
 	if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags))
 		hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
-					sizeof(ev->bdaddr), &ev->bdaddr);
+			     sizeof(ev->bdaddr), &ev->bdaddr);
 	else if (test_bit(HCI_MGMT, &hdev->dev_flags)) {
 		u8 secure;
 
@@ -2672,7 +2666,7 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_link_key_req *ev = (void *) skb->data;
 	struct hci_cp_link_key_reply cp;
@@ -2689,15 +2683,15 @@ static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff
 	key = hci_find_link_key(hdev, &ev->bdaddr);
 	if (!key) {
 		BT_DBG("%s link key not found for %s", hdev->name,
-							batostr(&ev->bdaddr));
+		       batostr(&ev->bdaddr));
 		goto not_found;
 	}
 
 	BT_DBG("%s found key type %u for %s", hdev->name, key->type,
-							batostr(&ev->bdaddr));
+	       batostr(&ev->bdaddr));
 
 	if (!test_bit(HCI_DEBUG_KEYS, &hdev->dev_flags) &&
-				key->type == HCI_LK_DEBUG_COMBINATION) {
+	    key->type == HCI_LK_DEBUG_COMBINATION) {
 		BT_DBG("%s ignoring debug key", hdev->name);
 		goto not_found;
 	}
@@ -2705,16 +2699,15 @@ static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff
 	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
 	if (conn) {
 		if (key->type == HCI_LK_UNAUTH_COMBINATION &&
-				conn->auth_type != 0xff &&
-				(conn->auth_type & 0x01)) {
+		    conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
 			BT_DBG("%s ignoring unauthenticated key", hdev->name);
 			goto not_found;
 		}
 
 		if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
-				conn->pending_sec_level == BT_SECURITY_HIGH) {
-			BT_DBG("%s ignoring key unauthenticated for high \
-							security", hdev->name);
+		    conn->pending_sec_level == BT_SECURITY_HIGH) {
+			BT_DBG("%s ignoring key unauthenticated for high security",
+			       hdev->name);
 			goto not_found;
 		}
 
@@ -2723,7 +2716,7 @@ static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff
 	}
 
 	bacpy(&cp.bdaddr, &ev->bdaddr);
-	memcpy(cp.link_key, key->val, 16);
+	memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
 
 	hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
 
@@ -2736,7 +2729,7 @@ not_found:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_link_key_notify *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2760,12 +2753,12 @@ static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff
 
 	if (test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
 		hci_add_link_key(hdev, conn, 1, &ev->bdaddr, ev->link_key,
-							ev->key_type, pin_len);
+				 ev->key_type, pin_len);
 
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_clock_offset *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2788,7 +2781,7 @@ static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *sk
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_pkt_type_change *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2804,7 +2797,7 @@ static inline void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
 	struct inquiry_entry *ie;
@@ -2822,7 +2815,8 @@ static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
+					     struct sk_buff *skb)
 {
 	struct inquiry_data data;
 	int num_rsp = *((__u8 *) skb->data);
@@ -2881,7 +2875,8 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_remote_ext_features_evt(struct hci_dev *hdev,
+					struct sk_buff *skb)
 {
 	struct hci_ev_remote_ext_features *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2929,7 +2924,8 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
+				       struct sk_buff *skb)
 {
 	struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -2984,19 +2980,20 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	BT_DBG("%s", hdev->name);
 }
 
-static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_sniff_subrate *ev = (void *) skb->data;
 
 	BT_DBG("%s status %d", hdev->name, ev->status);
 }
 
-static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
+					    struct sk_buff *skb)
 {
 	struct inquiry_data data;
 	struct extended_inquiry_info *info = (void *) (skb->data + 1);
@@ -3043,7 +3040,51 @@ static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct
 	hci_dev_unlock(hdev);
 }
 
-static inline u8 hci_get_auth_req(struct hci_conn *conn)
+static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
+					 struct sk_buff *skb)
+{
+	struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %u handle %u", hdev->name, ev->status,
+	       __le16_to_cpu(ev->handle));
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (!conn)
+		goto unlock;
+
+	if (!ev->status)
+		conn->sec_level = conn->pending_sec_level;
+
+	clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
+
+	if (ev->status && conn->state == BT_CONNECTED) {
+		hci_acl_disconn(conn, HCI_ERROR_AUTH_FAILURE);
+		hci_conn_put(conn);
+		goto unlock;
+	}
+
+	if (conn->state == BT_CONFIG) {
+		if (!ev->status)
+			conn->state = BT_CONNECTED;
+
+		hci_proto_connect_cfm(conn, ev->status);
+		hci_conn_put(conn);
+	} else {
+		hci_auth_cfm(conn, ev->status);
+
+		hci_conn_hold(conn);
+		conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+		hci_conn_put(conn);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static u8 hci_get_auth_req(struct hci_conn *conn)
 {
 	/* If remote requests dedicated bonding follow that lead */
 	if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) {
@@ -3062,7 +3103,7 @@ static inline u8 hci_get_auth_req(struct hci_conn *conn)
 	return conn->auth_type;
 }
 
-static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_io_capa_request *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -3081,7 +3122,7 @@ static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff
 		goto unlock;
 
 	if (test_bit(HCI_PAIRABLE, &hdev->dev_flags) ||
-			(conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
+	    (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
 		struct hci_cp_io_capability_reply cp;
 
 		bacpy(&cp.bdaddr, &ev->bdaddr);
@@ -3092,14 +3133,14 @@ static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff
 		conn->auth_type = hci_get_auth_req(conn);
 		cp.authentication = conn->auth_type;
 
-		if ((conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags)) &&
-				hci_find_remote_oob_data(hdev, &conn->dst))
+		if (hci_find_remote_oob_data(hdev, &conn->dst) &&
+		    (conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags)))
 			cp.oob_data = 0x01;
 		else
 			cp.oob_data = 0x00;
 
 		hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
-							sizeof(cp), &cp);
+			     sizeof(cp), &cp);
 	} else {
 		struct hci_cp_io_capability_neg_reply cp;
 
@@ -3107,14 +3148,14 @@ static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff
 		cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
 
 		hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
-							sizeof(cp), &cp);
+			     sizeof(cp), &cp);
 	}
 
 unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_io_capa_reply *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -3136,8 +3177,8 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
-							struct sk_buff *skb)
+static void hci_user_confirm_request_evt(struct hci_dev *hdev,
+					 struct sk_buff *skb)
 {
 	struct hci_ev_user_confirm_req *ev = (void *) skb->data;
 	int loc_mitm, rem_mitm, confirm_hint = 0;
@@ -3165,13 +3206,13 @@ static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
 	if (!conn->connect_cfm_cb && loc_mitm && conn->remote_cap == 0x03) {
 		BT_DBG("Rejecting request: remote device can't provide MITM");
 		hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
-					sizeof(ev->bdaddr), &ev->bdaddr);
+			     sizeof(ev->bdaddr), &ev->bdaddr);
 		goto unlock;
 	}
 
 	/* If no side requires MITM protection; auto-accept */
 	if ((!loc_mitm || conn->remote_cap == 0x03) &&
-				(!rem_mitm || conn->io_capability == 0x03)) {
+	    (!rem_mitm || conn->io_capability == 0x03)) {
 
 		/* If we're not the initiators request authorization to
 		 * proceed from user space (mgmt_user_confirm with
@@ -3183,7 +3224,7 @@ static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
 		}
 
 		BT_DBG("Auto-accept of user confirmation with %ums delay",
-						hdev->auto_accept_delay);
+		       hdev->auto_accept_delay);
 
 		if (hdev->auto_accept_delay > 0) {
 			int delay = msecs_to_jiffies(hdev->auto_accept_delay);
@@ -3192,7 +3233,7 @@ static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
 		}
 
 		hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
-						sizeof(ev->bdaddr), &ev->bdaddr);
+			     sizeof(ev->bdaddr), &ev->bdaddr);
 		goto unlock;
 	}
 
@@ -3204,8 +3245,8 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_user_passkey_request_evt(struct hci_dev *hdev,
-							struct sk_buff *skb)
+static void hci_user_passkey_request_evt(struct hci_dev *hdev,
+					 struct sk_buff *skb)
 {
 	struct hci_ev_user_passkey_req *ev = (void *) skb->data;
 
@@ -3219,7 +3260,8 @@ static inline void hci_user_passkey_request_evt(struct hci_dev *hdev,
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
+					 struct sk_buff *skb)
 {
 	struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -3247,7 +3289,8 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_remote_host_features_evt(struct hci_dev *hdev,
+					 struct sk_buff *skb)
 {
 	struct hci_ev_remote_host_features *ev = (void *) skb->data;
 	struct inquiry_entry *ie;
@@ -3263,8 +3306,8 @@ static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
-						   struct sk_buff *skb)
+static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
+					    struct sk_buff *skb)
 {
 	struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
 	struct oob_data *data;
@@ -3285,20 +3328,20 @@ static inline void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
 		memcpy(cp.randomizer, data->randomizer, sizeof(cp.randomizer));
 
 		hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY, sizeof(cp),
-									&cp);
+			     &cp);
 	} else {
 		struct hci_cp_remote_oob_data_neg_reply cp;
 
 		bacpy(&cp.bdaddr, &ev->bdaddr);
 		hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY, sizeof(cp),
-									&cp);
+			     &cp);
 	}
 
 unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_le_conn_complete *ev = (void *) skb->data;
 	struct hci_conn *conn;
@@ -3307,6 +3350,19 @@ static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff
 
 	hci_dev_lock(hdev);
 
+	if (ev->status) {
+		conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
+		if (!conn)
+			goto unlock;
+
+		mgmt_connect_failed(hdev, &conn->dst, conn->type,
+				    conn->dst_type, ev->status);
+		hci_proto_connect_cfm(conn, ev->status);
+		conn->state = BT_CLOSED;
+		hci_conn_del(conn);
+		goto unlock;
+	}
+
 	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &ev->bdaddr);
 	if (!conn) {
 		conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr);
@@ -3319,15 +3375,6 @@ static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff
 		conn->dst_type = ev->bdaddr_type;
 	}
 
-	if (ev->status) {
-		mgmt_connect_failed(hdev, &ev->bdaddr, conn->type,
-						conn->dst_type, ev->status);
-		hci_proto_connect_cfm(conn, ev->status);
-		conn->state = BT_CLOSED;
-		hci_conn_del(conn);
-		goto unlock;
-	}
-
 	if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
 		mgmt_device_connected(hdev, &ev->bdaddr, conn->type,
 				      conn->dst_type, 0, NULL, 0, NULL);
@@ -3345,8 +3392,7 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_le_adv_report_evt(struct hci_dev *hdev,
-						struct sk_buff *skb)
+static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	u8 num_reports = skb->data[0];
 	void *ptr = &skb->data[1];
@@ -3367,8 +3413,7 @@ static inline void hci_le_adv_report_evt(struct hci_dev *hdev,
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_le_ltk_request_evt(struct hci_dev *hdev,
-						struct sk_buff *skb)
+static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_le_ltk_req *ev = (void *) skb->data;
 	struct hci_cp_le_ltk_reply cp;
@@ -3411,7 +3456,7 @@ not_found:
 	hci_dev_unlock(hdev);
 }
 
-static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_le_meta *le_ev = (void *) skb->data;
 
@@ -3559,6 +3604,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_extended_inquiry_result_evt(hdev, skb);
 		break;
 
+	case HCI_EV_KEY_REFRESH_COMPLETE:
+		hci_key_refresh_complete_evt(hdev, skb);
+		break;
+
 	case HCI_EV_IO_CAPA_REQUEST:
 		hci_io_capa_request_evt(hdev, skb);
 		break;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 5914623f426..a7f04de03d7 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -24,25 +24,7 @@
 
 /* Bluetooth HCI sockets. */
 
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/workqueue.h>
-#include <linux/interrupt.h>
-#include <linux/compat.h>
-#include <linux/socket.h>
-#include <linux/ioctl.h>
-#include <net/sock.h>
-
-#include <linux/uaccess.h>
+#include <linux/export.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -113,11 +95,12 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
 		flt = &hci_pi(sk)->filter;
 
 		if (!test_bit((bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) ?
-				0 : (bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS), &flt->type_mask))
+			      0 : (bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS),
+			      &flt->type_mask))
 			continue;
 
 		if (bt_cb(skb)->pkt_type == HCI_EVENT_PKT) {
-			register int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
+			int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
 
 			if (!hci_test_bit(evt, &flt->event_mask))
 				continue;
@@ -240,7 +223,8 @@ void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb)
 			struct hci_mon_hdr *hdr;
 
 			/* Create a private copy with headroom */
-			skb_copy = __pskb_copy(skb, HCI_MON_HDR_SIZE, GFP_ATOMIC);
+			skb_copy = __pskb_copy(skb, HCI_MON_HDR_SIZE,
+					       GFP_ATOMIC);
 			if (!skb_copy)
 				continue;
 
@@ -495,7 +479,8 @@ static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg)
 }
 
 /* Ioctls that require bound socket */
-static inline int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)
+static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
+				unsigned long arg)
 {
 	struct hci_dev *hdev = hci_pi(sk)->hdev;
 
@@ -540,7 +525,8 @@ static inline int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, unsign
 	}
 }
 
-static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
+			  unsigned long arg)
 {
 	struct sock *sk = sock->sk;
 	void __user *argp = (void __user *) arg;
@@ -601,7 +587,8 @@ static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long a
 	}
 }
 
-static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
+static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
+			 int addr_len)
 {
 	struct sockaddr_hci haddr;
 	struct sock *sk = sock->sk;
@@ -690,7 +677,8 @@ done:
 	return err;
 }
 
-static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, int *addr_len, int peer)
+static int hci_sock_getname(struct socket *sock, struct sockaddr *addr,
+			    int *addr_len, int peer)
 {
 	struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
 	struct sock *sk = sock->sk;
@@ -711,13 +699,15 @@ static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, int *add
 	return 0;
 }
 
-static inline void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
+static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg,
+			  struct sk_buff *skb)
 {
 	__u32 mask = hci_pi(sk)->cmsg_mask;
 
 	if (mask & HCI_CMSG_DIR) {
 		int incoming = bt_cb(skb)->incoming;
-		put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming), &incoming);
+		put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming),
+			 &incoming);
 	}
 
 	if (mask & HCI_CMSG_TSTAMP) {
@@ -747,7 +737,7 @@ static inline void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_
 }
 
 static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
-				struct msghdr *msg, size_t len, int flags)
+			    struct msghdr *msg, size_t len, int flags)
 {
 	int noblock = flags & MSG_DONTWAIT;
 	struct sock *sk = sock->sk;
@@ -857,8 +847,9 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 		u16 ocf = hci_opcode_ocf(opcode);
 
 		if (((ogf > HCI_SFLT_MAX_OGF) ||
-				!hci_test_bit(ocf & HCI_FLT_OCF_BITS, &hci_sec_filter.ocf_mask[ogf])) &&
-					!capable(CAP_NET_RAW)) {
+		     !hci_test_bit(ocf & HCI_FLT_OCF_BITS,
+				   &hci_sec_filter.ocf_mask[ogf])) &&
+		    !capable(CAP_NET_RAW)) {
 			err = -EPERM;
 			goto drop;
 		}
@@ -891,7 +882,8 @@ drop:
 	goto done;
 }
 
-static int hci_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int len)
+static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
+			       char __user *optval, unsigned int len)
 {
 	struct hci_ufilter uf = { .opcode = 0 };
 	struct sock *sk = sock->sk;
@@ -973,7 +965,8 @@ done:
 	return err;
 }
 
-static int hci_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+static int hci_sock_getsockopt(struct socket *sock, int level, int optname,
+			       char __user *optval, int __user *optlen)
 {
 	struct hci_ufilter uf;
 	struct sock *sk = sock->sk;
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 937f3187eaf..a20e61c3653 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -1,10 +1,6 @@
 /* Bluetooth HCI driver model support. */
 
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/init.h>
 #include <linux/debugfs.h>
-#include <linux/seq_file.h>
 #include <linux/module.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -31,27 +27,30 @@ static inline char *link_typetostr(int type)
 	}
 }
 
-static ssize_t show_link_type(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_link_type(struct device *dev,
+			      struct device_attribute *attr, char *buf)
 {
 	struct hci_conn *conn = to_hci_conn(dev);
 	return sprintf(buf, "%s\n", link_typetostr(conn->type));
 }
 
-static ssize_t show_link_address(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_link_address(struct device *dev,
+				 struct device_attribute *attr, char *buf)
 {
 	struct hci_conn *conn = to_hci_conn(dev);
 	return sprintf(buf, "%s\n", batostr(&conn->dst));
 }
 
-static ssize_t show_link_features(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_link_features(struct device *dev,
+				  struct device_attribute *attr, char *buf)
 {
 	struct hci_conn *conn = to_hci_conn(dev);
 
 	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
-				conn->features[0], conn->features[1],
-				conn->features[2], conn->features[3],
-				conn->features[4], conn->features[5],
-				conn->features[6], conn->features[7]);
+		       conn->features[0], conn->features[1],
+		       conn->features[2], conn->features[3],
+		       conn->features[4], conn->features[5],
+		       conn->features[6], conn->features[7]);
 }
 
 #define LINK_ATTR(_name, _mode, _show, _store) \
@@ -185,19 +184,22 @@ static inline char *host_typetostr(int type)
 	}
 }
 
-static ssize_t show_bus(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_bus(struct device *dev,
+			struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
 }
 
-static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_type(struct device *dev,
+			 struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
 }
 
-static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_name(struct device *dev,
+			 struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	char name[HCI_MAX_NAME_LENGTH + 1];
@@ -210,55 +212,64 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr, char
 	return sprintf(buf, "%s\n", name);
 }
 
-static ssize_t show_class(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_class(struct device *dev,
+			  struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "0x%.2x%.2x%.2x\n",
-			hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
+	return sprintf(buf, "0x%.2x%.2x%.2x\n", hdev->dev_class[2],
+		       hdev->dev_class[1], hdev->dev_class[0]);
 }
 
-static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_address(struct device *dev,
+			    struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%s\n", batostr(&hdev->bdaddr));
 }
 
-static ssize_t show_features(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_features(struct device *dev,
+			     struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 
 	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
-				hdev->features[0], hdev->features[1],
-				hdev->features[2], hdev->features[3],
-				hdev->features[4], hdev->features[5],
-				hdev->features[6], hdev->features[7]);
+		       hdev->features[0], hdev->features[1],
+		       hdev->features[2], hdev->features[3],
+		       hdev->features[4], hdev->features[5],
+		       hdev->features[6], hdev->features[7]);
 }
 
-static ssize_t show_manufacturer(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_manufacturer(struct device *dev,
+				 struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%d\n", hdev->manufacturer);
 }
 
-static ssize_t show_hci_version(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_hci_version(struct device *dev,
+				struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%d\n", hdev->hci_ver);
 }
 
-static ssize_t show_hci_revision(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_hci_revision(struct device *dev,
+				 struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%d\n", hdev->hci_rev);
 }
 
-static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_idle_timeout(struct device *dev,
+				 struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%d\n", hdev->idle_timeout);
 }
 
-static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t store_idle_timeout(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	unsigned int val;
@@ -276,13 +287,16 @@ static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *a
 	return count;
 }
 
-static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_sniff_max_interval(struct device *dev,
+				       struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
 }
 
-static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t store_sniff_max_interval(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	u16 val;
@@ -300,13 +314,16 @@ static ssize_t store_sniff_max_interval(struct device *dev, struct device_attrib
 	return count;
 }
 
-static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_sniff_min_interval(struct device *dev,
+				       struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
 }
 
-static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t store_sniff_min_interval(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
 {
 	struct hci_dev *hdev = to_hci_dev(dev);
 	u16 val;
@@ -335,11 +352,11 @@ static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
 static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
 
 static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
-				show_idle_timeout, store_idle_timeout);
+		   show_idle_timeout, store_idle_timeout);
 static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
-				show_sniff_max_interval, store_sniff_max_interval);
+		   show_sniff_max_interval, store_sniff_max_interval);
 static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
-				show_sniff_min_interval, store_sniff_min_interval);
+		   show_sniff_min_interval, store_sniff_min_interval);
 
 static struct attribute *bt_host_attrs[] = {
 	&dev_attr_bus.attr,
@@ -455,8 +472,8 @@ static void print_bt_uuid(struct seq_file *f, u8 *uuid)
 	memcpy(&data5, &uuid[14], 2);
 
 	seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
-				ntohl(data0), ntohs(data1), ntohs(data2),
-				ntohs(data3), ntohl(data4), ntohs(data5));
+		   ntohl(data0), ntohs(data1), ntohs(data2), ntohs(data3),
+		   ntohl(data4), ntohs(data5));
 }
 
 static int uuids_show(struct seq_file *f, void *p)
@@ -513,7 +530,7 @@ static int auto_accept_delay_get(void *data, u64 *val)
 }
 
 DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
-					auto_accept_delay_set, "%llu\n");
+			auto_accept_delay_set, "%llu\n");
 
 void hci_init_sysfs(struct hci_dev *hdev)
 {
@@ -547,15 +564,15 @@ int hci_add_sysfs(struct hci_dev *hdev)
 		return 0;
 
 	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
-						hdev, &inquiry_cache_fops);
+			    hdev, &inquiry_cache_fops);
 
 	debugfs_create_file("blacklist", 0444, hdev->debugfs,
-						hdev, &blacklist_fops);
+			    hdev, &blacklist_fops);
 
 	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
 
 	debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev,
-						&auto_accept_delay_fops);
+			    &auto_accept_delay_fops);
 	return 0;
 }
 
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 2c20d765b39..ccd985da651 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -21,27 +21,8 @@
 */
 
 #include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/freezer.h>
-#include <linux/fcntl.h>
-#include <linux/skbuff.h>
-#include <linux/socket.h>
-#include <linux/ioctl.h>
 #include <linux/file.h>
-#include <linux/init.h>
-#include <linux/wait.h>
-#include <linux/mutex.h>
 #include <linux/kthread.h>
-#include <net/sock.h>
-
-#include <linux/input.h>
-#include <linux/hid.h>
 #include <linux/hidraw.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -244,7 +225,8 @@ static void hidp_input_report(struct hidp_session *session, struct sk_buff *skb)
 }
 
 static int __hidp_send_ctrl_message(struct hidp_session *session,
-			unsigned char hdr, unsigned char *data, int size)
+				    unsigned char hdr, unsigned char *data,
+				    int size)
 {
 	struct sk_buff *skb;
 
@@ -268,7 +250,7 @@ static int __hidp_send_ctrl_message(struct hidp_session *session,
 	return 0;
 }
 
-static inline int hidp_send_ctrl_message(struct hidp_session *session,
+static int hidp_send_ctrl_message(struct hidp_session *session,
 			unsigned char hdr, unsigned char *data, int size)
 {
 	int err;
@@ -471,7 +453,7 @@ static void hidp_set_timer(struct hidp_session *session)
 		mod_timer(&session->timer, jiffies + HZ * session->idle_to);
 }
 
-static inline void hidp_del_timer(struct hidp_session *session)
+static void hidp_del_timer(struct hidp_session *session)
 {
 	if (session->idle_to > 0)
 		del_timer(&session->timer);
diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c
index 73a32d705c1..18b3f6892a3 100644
--- a/net/bluetooth/hidp/sock.c
+++ b/net/bluetooth/hidp/sock.c
@@ -20,22 +20,8 @@
    SOFTWARE IS DISCLAIMED.
 */
 
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/skbuff.h>
-#include <linux/socket.h>
-#include <linux/ioctl.h>
+#include <linux/export.h>
 #include <linux/file.h>
-#include <linux/init.h>
-#include <linux/compat.h>
-#include <linux/gfp.h>
-#include <net/sock.h>
 
 #include "hidp.h"
 
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 24f144b72a9..4ca88247b7c 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -30,32 +30,14 @@
 
 #include <linux/module.h>
 
-#include <linux/types.h>
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/socket.h>
-#include <linux/skbuff.h>
-#include <linux/list.h>
-#include <linux/device.h>
 #include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
 #include <linux/crc16.h>
-#include <net/sock.h>
-
-#include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/smp.h>
+#include <net/bluetooth/a2mp.h>
 
 bool disable_ertm;
 
@@ -73,6 +55,9 @@ static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data);
 static void l2cap_send_disconn_req(struct l2cap_conn *conn,
 				   struct l2cap_chan *chan, int err);
 
+static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
+		    struct sk_buff_head *skbs, u8 event);
+
 /* ---- L2CAP channels ---- */
 
 static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn, u16 cid)
@@ -196,7 +181,7 @@ static void __l2cap_state_change(struct l2cap_chan *chan, int state)
 						state_to_string(state));
 
 	chan->state = state;
-	chan->ops->state_change(chan->data, state);
+	chan->ops->state_change(chan, state);
 }
 
 static void l2cap_state_change(struct l2cap_chan *chan, int state)
@@ -224,6 +209,37 @@ static inline void l2cap_chan_set_err(struct l2cap_chan *chan, int err)
 	release_sock(sk);
 }
 
+static void __set_retrans_timer(struct l2cap_chan *chan)
+{
+	if (!delayed_work_pending(&chan->monitor_timer) &&
+	    chan->retrans_timeout) {
+		l2cap_set_timer(chan, &chan->retrans_timer,
+				msecs_to_jiffies(chan->retrans_timeout));
+	}
+}
+
+static void __set_monitor_timer(struct l2cap_chan *chan)
+{
+	__clear_retrans_timer(chan);
+	if (chan->monitor_timeout) {
+		l2cap_set_timer(chan, &chan->monitor_timer,
+				msecs_to_jiffies(chan->monitor_timeout));
+	}
+}
+
+static struct sk_buff *l2cap_ertm_seq_in_queue(struct sk_buff_head *head,
+					       u16 seq)
+{
+	struct sk_buff *skb;
+
+	skb_queue_walk(head, skb) {
+		if (bt_cb(skb)->control.txseq == seq)
+			return skb;
+	}
+
+	return NULL;
+}
+
 /* ---- L2CAP sequence number lists ---- */
 
 /* For ERTM, ordered lists of sequence numbers must be tracked for
@@ -366,7 +382,7 @@ static void l2cap_chan_timeout(struct work_struct *work)
 
 	l2cap_chan_unlock(chan);
 
-	chan->ops->close(chan->data);
+	chan->ops->close(chan);
 	mutex_unlock(&conn->chan_lock);
 
 	l2cap_chan_put(chan);
@@ -392,6 +408,9 @@ struct l2cap_chan *l2cap_chan_create(void)
 
 	atomic_set(&chan->refcnt, 1);
 
+	/* This flag is cleared in l2cap_chan_ready() */
+	set_bit(CONF_NOT_COMPLETE, &chan->conf_state);
+
 	BT_DBG("chan %p", chan);
 
 	return chan;
@@ -430,7 +449,7 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 	case L2CAP_CHAN_CONN_ORIENTED:
 		if (conn->hcon->type == LE_LINK) {
 			/* LE connection */
-			chan->omtu = L2CAP_LE_DEFAULT_MTU;
+			chan->omtu = L2CAP_DEFAULT_MTU;
 			chan->scid = L2CAP_CID_LE_DATA;
 			chan->dcid = L2CAP_CID_LE_DATA;
 		} else {
@@ -447,6 +466,13 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 		chan->omtu = L2CAP_DEFAULT_MTU;
 		break;
 
+	case L2CAP_CHAN_CONN_FIX_A2MP:
+		chan->scid = L2CAP_CID_A2MP;
+		chan->dcid = L2CAP_CID_A2MP;
+		chan->omtu = L2CAP_A2MP_DEFAULT_MTU;
+		chan->imtu = L2CAP_A2MP_DEFAULT_MTU;
+		break;
+
 	default:
 		/* Raw socket can send/recv signalling messages only */
 		chan->scid = L2CAP_CID_SIGNALING;
@@ -466,18 +492,16 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 	list_add(&chan->list, &conn->chan_l);
 }
 
-static void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
+void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 {
 	mutex_lock(&conn->chan_lock);
 	__l2cap_chan_add(conn, chan);
 	mutex_unlock(&conn->chan_lock);
 }
 
-static void l2cap_chan_del(struct l2cap_chan *chan, int err)
+void l2cap_chan_del(struct l2cap_chan *chan, int err)
 {
-	struct sock *sk = chan->sk;
 	struct l2cap_conn *conn = chan->conn;
-	struct sock *parent = bt_sk(sk)->parent;
 
 	__clear_chan_timer(chan);
 
@@ -490,34 +514,22 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
 		l2cap_chan_put(chan);
 
 		chan->conn = NULL;
-		hci_conn_put(conn->hcon);
-	}
-
-	lock_sock(sk);
-
-	__l2cap_state_change(chan, BT_CLOSED);
-	sock_set_flag(sk, SOCK_ZAPPED);
 
-	if (err)
-		__l2cap_chan_set_err(chan, err);
+		if (chan->chan_type != L2CAP_CHAN_CONN_FIX_A2MP)
+			hci_conn_put(conn->hcon);
+	}
 
-	if (parent) {
-		bt_accept_unlink(sk);
-		parent->sk_data_ready(parent, 0);
-	} else
-		sk->sk_state_change(sk);
+	if (chan->ops->teardown)
+		chan->ops->teardown(chan, err);
 
-	release_sock(sk);
-
-	if (!(test_bit(CONF_OUTPUT_DONE, &chan->conf_state) &&
-			test_bit(CONF_INPUT_DONE, &chan->conf_state)))
+	if (test_bit(CONF_NOT_COMPLETE, &chan->conf_state))
 		return;
 
-	skb_queue_purge(&chan->tx_q);
-
-	if (chan->mode == L2CAP_MODE_ERTM) {
-		struct srej_list *l, *tmp;
+	switch(chan->mode) {
+	case L2CAP_MODE_BASIC:
+		break;
 
+	case L2CAP_MODE_ERTM:
 		__clear_retrans_timer(chan);
 		__clear_monitor_timer(chan);
 		__clear_ack_timer(chan);
@@ -526,30 +538,15 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
 
 		l2cap_seq_list_free(&chan->srej_list);
 		l2cap_seq_list_free(&chan->retrans_list);
-		list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
-			list_del(&l->list);
-			kfree(l);
-		}
-	}
-}
-
-static void l2cap_chan_cleanup_listen(struct sock *parent)
-{
-	struct sock *sk;
-
-	BT_DBG("parent %p", parent);
 
-	/* Close not yet accepted channels */
-	while ((sk = bt_accept_dequeue(parent, NULL))) {
-		struct l2cap_chan *chan = l2cap_pi(sk)->chan;
-
-		l2cap_chan_lock(chan);
-		__clear_chan_timer(chan);
-		l2cap_chan_close(chan, ECONNRESET);
-		l2cap_chan_unlock(chan);
+		/* fall through */
 
-		chan->ops->close(chan->data);
+	case L2CAP_MODE_STREAMING:
+		skb_queue_purge(&chan->tx_q);
+		break;
 	}
+
+	return;
 }
 
 void l2cap_chan_close(struct l2cap_chan *chan, int reason)
@@ -562,12 +559,8 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 
 	switch (chan->state) {
 	case BT_LISTEN:
-		lock_sock(sk);
-		l2cap_chan_cleanup_listen(sk);
-
-		__l2cap_state_change(chan, BT_CLOSED);
-		sock_set_flag(sk, SOCK_ZAPPED);
-		release_sock(sk);
+		if (chan->ops->teardown)
+			chan->ops->teardown(chan, 0);
 		break;
 
 	case BT_CONNECTED:
@@ -595,7 +588,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 			rsp.scid   = cpu_to_le16(chan->dcid);
 			rsp.dcid   = cpu_to_le16(chan->scid);
 			rsp.result = cpu_to_le16(result);
-			rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
+			rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
 			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
 							sizeof(rsp), &rsp);
 		}
@@ -609,9 +602,8 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 		break;
 
 	default:
-		lock_sock(sk);
-		sock_set_flag(sk, SOCK_ZAPPED);
-		release_sock(sk);
+		if (chan->ops->teardown)
+			chan->ops->teardown(chan, 0);
 		break;
 	}
 }
@@ -627,7 +619,7 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
 		default:
 			return HCI_AT_NO_BONDING;
 		}
-	} else if (chan->psm == cpu_to_le16(0x0001)) {
+	} else if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
 		if (chan->sec_level == BT_SECURITY_LOW)
 			chan->sec_level = BT_SECURITY_SDP;
 
@@ -773,9 +765,11 @@ static inline void __unpack_control(struct l2cap_chan *chan,
 	if (test_bit(FLAG_EXT_CTRL, &chan->flags)) {
 		__unpack_extended_control(get_unaligned_le32(skb->data),
 					  &bt_cb(skb)->control);
+		skb_pull(skb, L2CAP_EXT_CTRL_SIZE);
 	} else {
 		__unpack_enhanced_control(get_unaligned_le16(skb->data),
 					  &bt_cb(skb)->control);
+		skb_pull(skb, L2CAP_ENH_CTRL_SIZE);
 	}
 }
 
@@ -830,66 +824,102 @@ static inline void __pack_control(struct l2cap_chan *chan,
 	}
 }
 
-static inline void l2cap_send_sframe(struct l2cap_chan *chan, u32 control)
+static inline unsigned int __ertm_hdr_size(struct l2cap_chan *chan)
 {
-	struct sk_buff *skb;
-	struct l2cap_hdr *lh;
-	struct l2cap_conn *conn = chan->conn;
-	int count, hlen;
-
-	if (chan->state != BT_CONNECTED)
-		return;
-
 	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
-		hlen = L2CAP_EXT_HDR_SIZE;
+		return L2CAP_EXT_HDR_SIZE;
 	else
-		hlen = L2CAP_ENH_HDR_SIZE;
+		return L2CAP_ENH_HDR_SIZE;
+}
+
+static struct sk_buff *l2cap_create_sframe_pdu(struct l2cap_chan *chan,
+					       u32 control)
+{
+	struct sk_buff *skb;
+	struct l2cap_hdr *lh;
+	int hlen = __ertm_hdr_size(chan);
 
 	if (chan->fcs == L2CAP_FCS_CRC16)
 		hlen += L2CAP_FCS_SIZE;
 
-	BT_DBG("chan %p, control 0x%8.8x", chan, control);
-
-	count = min_t(unsigned int, conn->mtu, hlen);
-
-	control |= __set_sframe(chan);
+	skb = bt_skb_alloc(hlen, GFP_KERNEL);
 
-	if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
-		control |= __set_ctrl_final(chan);
-
-	if (test_and_clear_bit(CONN_SEND_PBIT, &chan->conn_state))
-		control |= __set_ctrl_poll(chan);
-
-	skb = bt_skb_alloc(count, GFP_ATOMIC);
 	if (!skb)
-		return;
+		return ERR_PTR(-ENOMEM);
 
 	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
 	lh->len = cpu_to_le16(hlen - L2CAP_HDR_SIZE);
 	lh->cid = cpu_to_le16(chan->dcid);
 
-	__put_control(chan, control, skb_put(skb, __ctrl_size(chan)));
+	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
+		put_unaligned_le32(control, skb_put(skb, L2CAP_EXT_CTRL_SIZE));
+	else
+		put_unaligned_le16(control, skb_put(skb, L2CAP_ENH_CTRL_SIZE));
 
 	if (chan->fcs == L2CAP_FCS_CRC16) {
-		u16 fcs = crc16(0, (u8 *)lh, count - L2CAP_FCS_SIZE);
+		u16 fcs = crc16(0, (u8 *)skb->data, skb->len);
 		put_unaligned_le16(fcs, skb_put(skb, L2CAP_FCS_SIZE));
 	}
 
 	skb->priority = HCI_PRIO_MAX;
-	l2cap_do_send(chan, skb);
+	return skb;
 }
 
-static inline void l2cap_send_rr_or_rnr(struct l2cap_chan *chan, u32 control)
+static void l2cap_send_sframe(struct l2cap_chan *chan,
+			      struct l2cap_ctrl *control)
 {
-	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
-		control |= __set_ctrl_super(chan, L2CAP_SUPER_RNR);
+	struct sk_buff *skb;
+	u32 control_field;
+
+	BT_DBG("chan %p, control %p", chan, control);
+
+	if (!control->sframe)
+		return;
+
+	if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state) &&
+	    !control->poll)
+		control->final = 1;
+
+	if (control->super == L2CAP_SUPER_RR)
+		clear_bit(CONN_RNR_SENT, &chan->conn_state);
+	else if (control->super == L2CAP_SUPER_RNR)
 		set_bit(CONN_RNR_SENT, &chan->conn_state);
-	} else
-		control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
 
-	control |= __set_reqseq(chan, chan->buffer_seq);
+	if (control->super != L2CAP_SUPER_SREJ) {
+		chan->last_acked_seq = control->reqseq;
+		__clear_ack_timer(chan);
+	}
+
+	BT_DBG("reqseq %d, final %d, poll %d, super %d", control->reqseq,
+	       control->final, control->poll, control->super);
+
+	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
+		control_field = __pack_extended_control(control);
+	else
+		control_field = __pack_enhanced_control(control);
+
+	skb = l2cap_create_sframe_pdu(chan, control_field);
+	if (!IS_ERR(skb))
+		l2cap_do_send(chan, skb);
+}
+
+static void l2cap_send_rr_or_rnr(struct l2cap_chan *chan, bool poll)
+{
+	struct l2cap_ctrl control;
+
+	BT_DBG("chan %p, poll %d", chan, poll);
+
+	memset(&control, 0, sizeof(control));
+	control.sframe = 1;
+	control.poll = poll;
 
-	l2cap_send_sframe(chan, control);
+	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state))
+		control.super = L2CAP_SUPER_RNR;
+	else
+		control.super = L2CAP_SUPER_RR;
+
+	control.reqseq = chan->buffer_seq;
+	l2cap_send_sframe(chan, &control);
 }
 
 static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
@@ -914,25 +944,13 @@ static void l2cap_send_conn_req(struct l2cap_chan *chan)
 
 static void l2cap_chan_ready(struct l2cap_chan *chan)
 {
-	struct sock *sk = chan->sk;
-	struct sock *parent;
-
-	lock_sock(sk);
-
-	parent = bt_sk(sk)->parent;
-
-	BT_DBG("sk %p, parent %p", sk, parent);
-
+	/* This clears all conf flags, including CONF_NOT_COMPLETE */
 	chan->conf_state = 0;
 	__clear_chan_timer(chan);
 
-	__l2cap_state_change(chan, BT_CONNECTED);
-	sk->sk_state_change(sk);
-
-	if (parent)
-		parent->sk_data_ready(parent, 0);
+	chan->state = BT_CONNECTED;
 
-	release_sock(sk);
+	chan->ops->ready(chan);
 }
 
 static void l2cap_do_start(struct l2cap_chan *chan)
@@ -953,7 +971,7 @@ static void l2cap_do_start(struct l2cap_chan *chan)
 			l2cap_send_conn_req(chan);
 	} else {
 		struct l2cap_info_req req;
-		req.type = cpu_to_le16(L2CAP_IT_FEAT_MASK);
+		req.type = __constant_cpu_to_le16(L2CAP_IT_FEAT_MASK);
 
 		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_SENT;
 		conn->info_ident = l2cap_get_ident(conn);
@@ -995,6 +1013,11 @@ static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *c
 		__clear_ack_timer(chan);
 	}
 
+	if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP) {
+		__l2cap_state_change(chan, BT_DISCONN);
+		return;
+	}
+
 	req.dcid = cpu_to_le16(chan->dcid);
 	req.scid = cpu_to_le16(chan->scid);
 	l2cap_send_cmd(conn, l2cap_get_ident(conn),
@@ -1053,20 +1076,20 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 				if (test_bit(BT_SK_DEFER_SETUP,
 					     &bt_sk(sk)->flags)) {
 					struct sock *parent = bt_sk(sk)->parent;
-					rsp.result = cpu_to_le16(L2CAP_CR_PEND);
-					rsp.status = cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
+					rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
+					rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
 					if (parent)
 						parent->sk_data_ready(parent, 0);
 
 				} else {
 					__l2cap_state_change(chan, BT_CONFIG);
-					rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS);
-					rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
+					rsp.result = __constant_cpu_to_le16(L2CAP_CR_SUCCESS);
+					rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
 				}
 				release_sock(sk);
 			} else {
-				rsp.result = cpu_to_le16(L2CAP_CR_PEND);
-				rsp.status = cpu_to_le16(L2CAP_CS_AUTHEN_PEND);
+				rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
+				rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHEN_PEND);
 			}
 
 			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
@@ -1150,13 +1173,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	lock_sock(parent);
 
-	/* Check for backlog size */
-	if (sk_acceptq_is_full(parent)) {
-		BT_DBG("backlog full %d", parent->sk_ack_backlog);
-		goto clean;
-	}
-
-	chan = pchan->ops->new_connection(pchan->data);
+	chan = pchan->ops->new_connection(pchan);
 	if (!chan)
 		goto clean;
 
@@ -1171,10 +1188,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	l2cap_chan_add(conn, chan);
 
-	__set_chan_timer(chan, sk->sk_sndtimeo);
-
-	__l2cap_state_change(chan, BT_CONNECTED);
-	parent->sk_data_ready(parent, 0);
+	l2cap_chan_ready(chan);
 
 clean:
 	release_sock(parent);
@@ -1198,6 +1212,11 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
 
 		l2cap_chan_lock(chan);
 
+		if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP) {
+			l2cap_chan_unlock(chan);
+			continue;
+		}
+
 		if (conn->hcon->type == LE_LINK) {
 			if (smp_conn_security(conn, chan->sec_level))
 				l2cap_chan_ready(chan);
@@ -1270,7 +1289,7 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err)
 
 		l2cap_chan_unlock(chan);
 
-		chan->ops->close(chan->data);
+		chan->ops->close(chan);
 		l2cap_chan_put(chan);
 	}
 
@@ -1295,7 +1314,12 @@ static void security_timeout(struct work_struct *work)
 	struct l2cap_conn *conn = container_of(work, struct l2cap_conn,
 						security_timer.work);
 
-	l2cap_conn_del(conn->hcon, ETIMEDOUT);
+	BT_DBG("conn %p", conn);
+
+	if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags)) {
+		smp_chan_destroy(conn);
+		l2cap_conn_del(conn->hcon, ETIMEDOUT);
+	}
 }
 
 static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
@@ -1439,21 +1463,17 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 		goto done;
 	}
 
-	lock_sock(sk);
-
-	switch (sk->sk_state) {
+	switch (chan->state) {
 	case BT_CONNECT:
 	case BT_CONNECT2:
 	case BT_CONFIG:
 		/* Already connecting */
 		err = 0;
-		release_sock(sk);
 		goto done;
 
 	case BT_CONNECTED:
 		/* Already connected */
 		err = -EISCONN;
-		release_sock(sk);
 		goto done;
 
 	case BT_OPEN:
@@ -1463,13 +1483,12 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 
 	default:
 		err = -EBADFD;
-		release_sock(sk);
 		goto done;
 	}
 
 	/* Set destination address and psm */
+	lock_sock(sk);
 	bacpy(&bt_sk(sk)->dst, dst);
-
 	release_sock(sk);
 
 	chan->psm = psm;
@@ -1571,23 +1590,20 @@ int __l2cap_wait_ack(struct sock *sk)
 static void l2cap_monitor_timeout(struct work_struct *work)
 {
 	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
-							monitor_timer.work);
+					       monitor_timer.work);
 
 	BT_DBG("chan %p", chan);
 
 	l2cap_chan_lock(chan);
 
-	if (chan->retry_count >= chan->remote_max_tx) {
-		l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
+	if (!chan->conn) {
 		l2cap_chan_unlock(chan);
 		l2cap_chan_put(chan);
 		return;
 	}
 
-	chan->retry_count++;
-	__set_monitor_timer(chan);
+	l2cap_tx(chan, NULL, NULL, L2CAP_EV_MONITOR_TO);
 
-	l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL);
 	l2cap_chan_unlock(chan);
 	l2cap_chan_put(chan);
 }
@@ -1595,234 +1611,293 @@ static void l2cap_monitor_timeout(struct work_struct *work)
 static void l2cap_retrans_timeout(struct work_struct *work)
 {
 	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
-							retrans_timer.work);
+					       retrans_timer.work);
 
 	BT_DBG("chan %p", chan);
 
 	l2cap_chan_lock(chan);
 
-	chan->retry_count = 1;
-	__set_monitor_timer(chan);
-
-	set_bit(CONN_WAIT_F, &chan->conn_state);
-
-	l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL);
+	if (!chan->conn) {
+		l2cap_chan_unlock(chan);
+		l2cap_chan_put(chan);
+		return;
+	}
 
+	l2cap_tx(chan, NULL, NULL, L2CAP_EV_RETRANS_TO);
 	l2cap_chan_unlock(chan);
 	l2cap_chan_put(chan);
 }
 
-static void l2cap_drop_acked_frames(struct l2cap_chan *chan)
+static void l2cap_streaming_send(struct l2cap_chan *chan,
+				 struct sk_buff_head *skbs)
 {
 	struct sk_buff *skb;
+	struct l2cap_ctrl *control;
 
-	while ((skb = skb_peek(&chan->tx_q)) &&
-			chan->unacked_frames) {
-		if (bt_cb(skb)->control.txseq == chan->expected_ack_seq)
-			break;
+	BT_DBG("chan %p, skbs %p", chan, skbs);
 
-		skb = skb_dequeue(&chan->tx_q);
-		kfree_skb(skb);
+	skb_queue_splice_tail_init(skbs, &chan->tx_q);
 
-		chan->unacked_frames--;
-	}
+	while (!skb_queue_empty(&chan->tx_q)) {
 
-	if (!chan->unacked_frames)
-		__clear_retrans_timer(chan);
-}
+		skb = skb_dequeue(&chan->tx_q);
 
-static void l2cap_streaming_send(struct l2cap_chan *chan)
-{
-	struct sk_buff *skb;
-	u32 control;
-	u16 fcs;
+		bt_cb(skb)->control.retries = 1;
+		control = &bt_cb(skb)->control;
+
+		control->reqseq = 0;
+		control->txseq = chan->next_tx_seq;
 
-	while ((skb = skb_dequeue(&chan->tx_q))) {
-		control = __get_control(chan, skb->data + L2CAP_HDR_SIZE);
-		control |= __set_txseq(chan, chan->next_tx_seq);
-		control |= __set_ctrl_sar(chan, bt_cb(skb)->control.sar);
-		__put_control(chan, control, skb->data + L2CAP_HDR_SIZE);
+		__pack_control(chan, control, skb);
 
 		if (chan->fcs == L2CAP_FCS_CRC16) {
-			fcs = crc16(0, (u8 *)skb->data,
-						skb->len - L2CAP_FCS_SIZE);
-			put_unaligned_le16(fcs,
-					skb->data + skb->len - L2CAP_FCS_SIZE);
+			u16 fcs = crc16(0, (u8 *) skb->data, skb->len);
+			put_unaligned_le16(fcs, skb_put(skb, L2CAP_FCS_SIZE));
 		}
 
 		l2cap_do_send(chan, skb);
 
+		BT_DBG("Sent txseq %d", (int)control->txseq);
+
 		chan->next_tx_seq = __next_seq(chan, chan->next_tx_seq);
+		chan->frames_sent++;
 	}
 }
 
-static void l2cap_retransmit_one_frame(struct l2cap_chan *chan, u16 tx_seq)
+static int l2cap_ertm_send(struct l2cap_chan *chan)
 {
 	struct sk_buff *skb, *tx_skb;
-	u16 fcs;
-	u32 control;
+	struct l2cap_ctrl *control;
+	int sent = 0;
 
-	skb = skb_peek(&chan->tx_q);
-	if (!skb)
-		return;
+	BT_DBG("chan %p", chan);
 
-	while (bt_cb(skb)->control.txseq != tx_seq) {
-		if (skb_queue_is_last(&chan->tx_q, skb))
-			return;
+	if (chan->state != BT_CONNECTED)
+		return -ENOTCONN;
 
-		skb = skb_queue_next(&chan->tx_q, skb);
-	}
+	if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state))
+		return 0;
 
-	if (bt_cb(skb)->control.retries == chan->remote_max_tx &&
-	    chan->remote_max_tx) {
-		l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
-		return;
-	}
+	while (chan->tx_send_head &&
+	       chan->unacked_frames < chan->remote_tx_win &&
+	       chan->tx_state == L2CAP_TX_STATE_XMIT) {
 
-	tx_skb = skb_clone(skb, GFP_ATOMIC);
-	bt_cb(skb)->control.retries++;
+		skb = chan->tx_send_head;
 
-	control = __get_control(chan, tx_skb->data + L2CAP_HDR_SIZE);
-	control &= __get_sar_mask(chan);
+		bt_cb(skb)->control.retries = 1;
+		control = &bt_cb(skb)->control;
 
-	if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
-		control |= __set_ctrl_final(chan);
+		if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
+			control->final = 1;
 
-	control |= __set_reqseq(chan, chan->buffer_seq);
-	control |= __set_txseq(chan, tx_seq);
+		control->reqseq = chan->buffer_seq;
+		chan->last_acked_seq = chan->buffer_seq;
+		control->txseq = chan->next_tx_seq;
 
-	__put_control(chan, control, tx_skb->data + L2CAP_HDR_SIZE);
+		__pack_control(chan, control, skb);
 
-	if (chan->fcs == L2CAP_FCS_CRC16) {
-		fcs = crc16(0, (u8 *)tx_skb->data,
-						tx_skb->len - L2CAP_FCS_SIZE);
-		put_unaligned_le16(fcs,
-				tx_skb->data + tx_skb->len - L2CAP_FCS_SIZE);
+		if (chan->fcs == L2CAP_FCS_CRC16) {
+			u16 fcs = crc16(0, (u8 *) skb->data, skb->len);
+			put_unaligned_le16(fcs, skb_put(skb, L2CAP_FCS_SIZE));
+		}
+
+		/* Clone after data has been modified. Data is assumed to be
+		   read-only (for locking purposes) on cloned sk_buffs.
+		 */
+		tx_skb = skb_clone(skb, GFP_KERNEL);
+
+		if (!tx_skb)
+			break;
+
+		__set_retrans_timer(chan);
+
+		chan->next_tx_seq = __next_seq(chan, chan->next_tx_seq);
+		chan->unacked_frames++;
+		chan->frames_sent++;
+		sent++;
+
+		if (skb_queue_is_last(&chan->tx_q, skb))
+			chan->tx_send_head = NULL;
+		else
+			chan->tx_send_head = skb_queue_next(&chan->tx_q, skb);
+
+		l2cap_do_send(chan, tx_skb);
+		BT_DBG("Sent txseq %d", (int)control->txseq);
 	}
 
-	l2cap_do_send(chan, tx_skb);
+	BT_DBG("Sent %d, %d unacked, %d in ERTM queue", sent,
+	       (int) chan->unacked_frames, skb_queue_len(&chan->tx_q));
+
+	return sent;
 }
 
-static int l2cap_ertm_send(struct l2cap_chan *chan)
+static void l2cap_ertm_resend(struct l2cap_chan *chan)
 {
-	struct sk_buff *skb, *tx_skb;
-	u16 fcs;
-	u32 control;
-	int nsent = 0;
+	struct l2cap_ctrl control;
+	struct sk_buff *skb;
+	struct sk_buff *tx_skb;
+	u16 seq;
 
-	if (chan->state != BT_CONNECTED)
-		return -ENOTCONN;
+	BT_DBG("chan %p", chan);
 
 	if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state))
-		return 0;
+		return;
 
-	while ((skb = chan->tx_send_head) && (!l2cap_tx_window_full(chan))) {
+	while (chan->retrans_list.head != L2CAP_SEQ_LIST_CLEAR) {
+		seq = l2cap_seq_list_pop(&chan->retrans_list);
 
-		if (bt_cb(skb)->control.retries == chan->remote_max_tx &&
-		    chan->remote_max_tx) {
-			l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
-			break;
+		skb = l2cap_ertm_seq_in_queue(&chan->tx_q, seq);
+		if (!skb) {
+			BT_DBG("Error: Can't retransmit seq %d, frame missing",
+				seq);
+			continue;
 		}
 
-		tx_skb = skb_clone(skb, GFP_ATOMIC);
-
 		bt_cb(skb)->control.retries++;
+		control = bt_cb(skb)->control;
 
-		control = __get_control(chan, tx_skb->data + L2CAP_HDR_SIZE);
-		control &= __get_sar_mask(chan);
+		if (chan->max_tx != 0 &&
+		    bt_cb(skb)->control.retries > chan->max_tx) {
+			BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
+			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+			l2cap_seq_list_clear(&chan->retrans_list);
+			break;
+		}
 
+		control.reqseq = chan->buffer_seq;
 		if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
-			control |= __set_ctrl_final(chan);
+			control.final = 1;
+		else
+			control.final = 0;
 
-		control |= __set_reqseq(chan, chan->buffer_seq);
-		control |= __set_txseq(chan, chan->next_tx_seq);
-		control |= __set_ctrl_sar(chan, bt_cb(skb)->control.sar);
+		if (skb_cloned(skb)) {
+			/* Cloned sk_buffs are read-only, so we need a
+			 * writeable copy
+			 */
+			tx_skb = skb_copy(skb, GFP_ATOMIC);
+		} else {
+			tx_skb = skb_clone(skb, GFP_ATOMIC);
+		}
 
-		__put_control(chan, control, tx_skb->data + L2CAP_HDR_SIZE);
+		if (!tx_skb) {
+			l2cap_seq_list_clear(&chan->retrans_list);
+			break;
+		}
+
+		/* Update skb contents */
+		if (test_bit(FLAG_EXT_CTRL, &chan->flags)) {
+			put_unaligned_le32(__pack_extended_control(&control),
+					   tx_skb->data + L2CAP_HDR_SIZE);
+		} else {
+			put_unaligned_le16(__pack_enhanced_control(&control),
+					   tx_skb->data + L2CAP_HDR_SIZE);
+		}
 
 		if (chan->fcs == L2CAP_FCS_CRC16) {
-			fcs = crc16(0, (u8 *)skb->data,
-						tx_skb->len - L2CAP_FCS_SIZE);
-			put_unaligned_le16(fcs, skb->data +
-						tx_skb->len - L2CAP_FCS_SIZE);
+			u16 fcs = crc16(0, (u8 *) tx_skb->data, tx_skb->len);
+			put_unaligned_le16(fcs, skb_put(tx_skb,
+							L2CAP_FCS_SIZE));
 		}
 
 		l2cap_do_send(chan, tx_skb);
 
-		__set_retrans_timer(chan);
-
-		bt_cb(skb)->control.txseq = chan->next_tx_seq;
-
-		chan->next_tx_seq = __next_seq(chan, chan->next_tx_seq);
-
-		if (bt_cb(skb)->control.retries == 1) {
-			chan->unacked_frames++;
-
-			if (!nsent++)
-				__clear_ack_timer(chan);
-		}
-
-		chan->frames_sent++;
+		BT_DBG("Resent txseq %d", control.txseq);
 
-		if (skb_queue_is_last(&chan->tx_q, skb))
-			chan->tx_send_head = NULL;
-		else
-			chan->tx_send_head = skb_queue_next(&chan->tx_q, skb);
+		chan->last_acked_seq = chan->buffer_seq;
 	}
-
-	return nsent;
 }
 
-static int l2cap_retransmit_frames(struct l2cap_chan *chan)
+static void l2cap_retransmit(struct l2cap_chan *chan,
+			     struct l2cap_ctrl *control)
 {
-	int ret;
-
-	if (!skb_queue_empty(&chan->tx_q))
-		chan->tx_send_head = chan->tx_q.next;
+	BT_DBG("chan %p, control %p", chan, control);
 
-	chan->next_tx_seq = chan->expected_ack_seq;
-	ret = l2cap_ertm_send(chan);
-	return ret;
+	l2cap_seq_list_append(&chan->retrans_list, control->reqseq);
+	l2cap_ertm_resend(chan);
 }
 
-static void __l2cap_send_ack(struct l2cap_chan *chan)
+static void l2cap_retransmit_all(struct l2cap_chan *chan,
+				 struct l2cap_ctrl *control)
 {
-	u32 control = 0;
+	struct sk_buff *skb;
 
-	control |= __set_reqseq(chan, chan->buffer_seq);
+	BT_DBG("chan %p, control %p", chan, control);
 
-	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
-		control |= __set_ctrl_super(chan, L2CAP_SUPER_RNR);
-		set_bit(CONN_RNR_SENT, &chan->conn_state);
-		l2cap_send_sframe(chan, control);
-		return;
-	}
+	if (control->poll)
+		set_bit(CONN_SEND_FBIT, &chan->conn_state);
 
-	if (l2cap_ertm_send(chan) > 0)
+	l2cap_seq_list_clear(&chan->retrans_list);
+
+	if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state))
 		return;
 
-	control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
-	l2cap_send_sframe(chan, control);
+	if (chan->unacked_frames) {
+		skb_queue_walk(&chan->tx_q, skb) {
+			if (bt_cb(skb)->control.txseq == control->reqseq ||
+				skb == chan->tx_send_head)
+				break;
+		}
+
+		skb_queue_walk_from(&chan->tx_q, skb) {
+			if (skb == chan->tx_send_head)
+				break;
+
+			l2cap_seq_list_append(&chan->retrans_list,
+					      bt_cb(skb)->control.txseq);
+		}
+
+		l2cap_ertm_resend(chan);
+	}
 }
 
 static void l2cap_send_ack(struct l2cap_chan *chan)
 {
-	__clear_ack_timer(chan);
-	__l2cap_send_ack(chan);
-}
+	struct l2cap_ctrl control;
+	u16 frames_to_ack = __seq_offset(chan, chan->buffer_seq,
+					 chan->last_acked_seq);
+	int threshold;
 
-static void l2cap_send_srejtail(struct l2cap_chan *chan)
-{
-	struct srej_list *tail;
-	u32 control;
+	BT_DBG("chan %p last_acked_seq %d buffer_seq %d",
+	       chan, chan->last_acked_seq, chan->buffer_seq);
 
-	control = __set_ctrl_super(chan, L2CAP_SUPER_SREJ);
-	control |= __set_ctrl_final(chan);
+	memset(&control, 0, sizeof(control));
+	control.sframe = 1;
 
-	tail = list_entry((&chan->srej_l)->prev, struct srej_list, list);
-	control |= __set_reqseq(chan, tail->tx_seq);
+	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state) &&
+	    chan->rx_state == L2CAP_RX_STATE_RECV) {
+		__clear_ack_timer(chan);
+		control.super = L2CAP_SUPER_RNR;
+		control.reqseq = chan->buffer_seq;
+		l2cap_send_sframe(chan, &control);
+	} else {
+		if (!test_bit(CONN_REMOTE_BUSY, &chan->conn_state)) {
+			l2cap_ertm_send(chan);
+			/* If any i-frames were sent, they included an ack */
+			if (chan->buffer_seq == chan->last_acked_seq)
+				frames_to_ack = 0;
+		}
 
-	l2cap_send_sframe(chan, control);
+		/* Ack now if the tx window is 3/4ths full.
+		 * Calculate without mul or div
+		 */
+		threshold = chan->tx_win;
+		threshold += threshold << 1;
+		threshold >>= 2;
+
+		BT_DBG("frames_to_ack %d, threshold %d", (int)frames_to_ack,
+		       threshold);
+
+		if (frames_to_ack >= threshold) {
+			__clear_ack_timer(chan);
+			control.super = L2CAP_SUPER_RR;
+			control.reqseq = chan->buffer_seq;
+			l2cap_send_sframe(chan, &control);
+			frames_to_ack = 0;
+		}
+
+		if (frames_to_ack)
+			__set_ack_timer(chan);
+	}
 }
 
 static inline int l2cap_skbuff_fromiovec(struct l2cap_chan *chan,
@@ -1951,10 +2026,7 @@ static struct sk_buff *l2cap_create_iframe_pdu(struct l2cap_chan *chan,
 	if (!conn)
 		return ERR_PTR(-ENOTCONN);
 
-	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
-		hlen = L2CAP_EXT_HDR_SIZE;
-	else
-		hlen = L2CAP_ENH_HDR_SIZE;
+	hlen = __ertm_hdr_size(chan);
 
 	if (sdulen)
 		hlen += L2CAP_SDULEN_SIZE;
@@ -1974,7 +2046,11 @@ static struct sk_buff *l2cap_create_iframe_pdu(struct l2cap_chan *chan,
 	lh->cid = cpu_to_le16(chan->dcid);
 	lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
 
-	__put_control(chan, 0, skb_put(skb, __ctrl_size(chan)));
+	/* Control header is populated later */
+	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
+		put_unaligned_le32(0, skb_put(skb, L2CAP_EXT_CTRL_SIZE));
+	else
+		put_unaligned_le16(0, skb_put(skb, L2CAP_ENH_CTRL_SIZE));
 
 	if (sdulen)
 		put_unaligned_le16(sdulen, skb_put(skb, L2CAP_SDULEN_SIZE));
@@ -1985,9 +2061,7 @@ static struct sk_buff *l2cap_create_iframe_pdu(struct l2cap_chan *chan,
 		return ERR_PTR(err);
 	}
 
-	if (chan->fcs == L2CAP_FCS_CRC16)
-		put_unaligned_le16(0, skb_put(skb, L2CAP_FCS_SIZE));
-
+	bt_cb(skb)->control.fcs = chan->fcs;
 	bt_cb(skb)->control.retries = 0;
 	return skb;
 }
@@ -1999,7 +2073,6 @@ static int l2cap_segment_sdu(struct l2cap_chan *chan,
 	struct sk_buff *skb;
 	u16 sdu_len;
 	size_t pdu_len;
-	int err = 0;
 	u8 sar;
 
 	BT_DBG("chan %p, msg %p, len %d", chan, msg, (int)len);
@@ -2015,7 +2088,10 @@ static int l2cap_segment_sdu(struct l2cap_chan *chan,
 	pdu_len = min_t(size_t, pdu_len, L2CAP_BREDR_MAX_PAYLOAD);
 
 	/* Adjust for largest possible L2CAP overhead. */
-	pdu_len -= L2CAP_EXT_HDR_SIZE + L2CAP_FCS_SIZE;
+	if (chan->fcs)
+		pdu_len -= L2CAP_FCS_SIZE;
+
+	pdu_len -= __ertm_hdr_size(chan);
 
 	/* Remote device may have requested smaller PDUs */
 	pdu_len = min_t(size_t, pdu_len, chan->remote_mps);
@@ -2055,7 +2131,7 @@ static int l2cap_segment_sdu(struct l2cap_chan *chan,
 		}
 	}
 
-	return err;
+	return 0;
 }
 
 int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len,
@@ -2117,17 +2193,12 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len,
 		if (err)
 			break;
 
-		if (chan->mode == L2CAP_MODE_ERTM && chan->tx_send_head == NULL)
-			chan->tx_send_head = seg_queue.next;
-		skb_queue_splice_tail_init(&seg_queue, &chan->tx_q);
-
 		if (chan->mode == L2CAP_MODE_ERTM)
-			err = l2cap_ertm_send(chan);
+			l2cap_tx(chan, NULL, &seg_queue, L2CAP_EV_DATA_REQUEST);
 		else
-			l2cap_streaming_send(chan);
+			l2cap_streaming_send(chan, &seg_queue);
 
-		if (err >= 0)
-			err = len;
+		err = len;
 
 		/* If the skbs were not queued for sending, they'll still be in
 		 * seg_queue and need to be purged.
@@ -2143,6 +2214,296 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len,
 	return err;
 }
 
+static void l2cap_send_srej(struct l2cap_chan *chan, u16 txseq)
+{
+	struct l2cap_ctrl control;
+	u16 seq;
+
+	BT_DBG("chan %p, txseq %d", chan, txseq);
+
+	memset(&control, 0, sizeof(control));
+	control.sframe = 1;
+	control.super = L2CAP_SUPER_SREJ;
+
+	for (seq = chan->expected_tx_seq; seq != txseq;
+	     seq = __next_seq(chan, seq)) {
+		if (!l2cap_ertm_seq_in_queue(&chan->srej_q, seq)) {
+			control.reqseq = seq;
+			l2cap_send_sframe(chan, &control);
+			l2cap_seq_list_append(&chan->srej_list, seq);
+		}
+	}
+
+	chan->expected_tx_seq = __next_seq(chan, txseq);
+}
+
+static void l2cap_send_srej_tail(struct l2cap_chan *chan)
+{
+	struct l2cap_ctrl control;
+
+	BT_DBG("chan %p", chan);
+
+	if (chan->srej_list.tail == L2CAP_SEQ_LIST_CLEAR)
+		return;
+
+	memset(&control, 0, sizeof(control));
+	control.sframe = 1;
+	control.super = L2CAP_SUPER_SREJ;
+	control.reqseq = chan->srej_list.tail;
+	l2cap_send_sframe(chan, &control);
+}
+
+static void l2cap_send_srej_list(struct l2cap_chan *chan, u16 txseq)
+{
+	struct l2cap_ctrl control;
+	u16 initial_head;
+	u16 seq;
+
+	BT_DBG("chan %p, txseq %d", chan, txseq);
+
+	memset(&control, 0, sizeof(control));
+	control.sframe = 1;
+	control.super = L2CAP_SUPER_SREJ;
+
+	/* Capture initial list head to allow only one pass through the list. */
+	initial_head = chan->srej_list.head;
+
+	do {
+		seq = l2cap_seq_list_pop(&chan->srej_list);
+		if (seq == txseq || seq == L2CAP_SEQ_LIST_CLEAR)
+			break;
+
+		control.reqseq = seq;
+		l2cap_send_sframe(chan, &control);
+		l2cap_seq_list_append(&chan->srej_list, seq);
+	} while (chan->srej_list.head != initial_head);
+}
+
+static void l2cap_process_reqseq(struct l2cap_chan *chan, u16 reqseq)
+{
+	struct sk_buff *acked_skb;
+	u16 ackseq;
+
+	BT_DBG("chan %p, reqseq %d", chan, reqseq);
+
+	if (chan->unacked_frames == 0 || reqseq == chan->expected_ack_seq)
+		return;
+
+	BT_DBG("expected_ack_seq %d, unacked_frames %d",
+	       chan->expected_ack_seq, chan->unacked_frames);
+
+	for (ackseq = chan->expected_ack_seq; ackseq != reqseq;
+	     ackseq = __next_seq(chan, ackseq)) {
+
+		acked_skb = l2cap_ertm_seq_in_queue(&chan->tx_q, ackseq);
+		if (acked_skb) {
+			skb_unlink(acked_skb, &chan->tx_q);
+			kfree_skb(acked_skb);
+			chan->unacked_frames--;
+		}
+	}
+
+	chan->expected_ack_seq = reqseq;
+
+	if (chan->unacked_frames == 0)
+		__clear_retrans_timer(chan);
+
+	BT_DBG("unacked_frames %d", (int) chan->unacked_frames);
+}
+
+static void l2cap_abort_rx_srej_sent(struct l2cap_chan *chan)
+{
+	BT_DBG("chan %p", chan);
+
+	chan->expected_tx_seq = chan->buffer_seq;
+	l2cap_seq_list_clear(&chan->srej_list);
+	skb_queue_purge(&chan->srej_q);
+	chan->rx_state = L2CAP_RX_STATE_RECV;
+}
+
+static void l2cap_tx_state_xmit(struct l2cap_chan *chan,
+				struct l2cap_ctrl *control,
+				struct sk_buff_head *skbs, u8 event)
+{
+	BT_DBG("chan %p, control %p, skbs %p, event %d", chan, control, skbs,
+	       event);
+
+	switch (event) {
+	case L2CAP_EV_DATA_REQUEST:
+		if (chan->tx_send_head == NULL)
+			chan->tx_send_head = skb_peek(skbs);
+
+		skb_queue_splice_tail_init(skbs, &chan->tx_q);
+		l2cap_ertm_send(chan);
+		break;
+	case L2CAP_EV_LOCAL_BUSY_DETECTED:
+		BT_DBG("Enter LOCAL_BUSY");
+		set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
+
+		if (chan->rx_state == L2CAP_RX_STATE_SREJ_SENT) {
+			/* The SREJ_SENT state must be aborted if we are to
+			 * enter the LOCAL_BUSY state.
+			 */
+			l2cap_abort_rx_srej_sent(chan);
+		}
+
+		l2cap_send_ack(chan);
+
+		break;
+	case L2CAP_EV_LOCAL_BUSY_CLEAR:
+		BT_DBG("Exit LOCAL_BUSY");
+		clear_bit(CONN_LOCAL_BUSY, &chan->conn_state);
+
+		if (test_bit(CONN_RNR_SENT, &chan->conn_state)) {
+			struct l2cap_ctrl local_control;
+
+			memset(&local_control, 0, sizeof(local_control));
+			local_control.sframe = 1;
+			local_control.super = L2CAP_SUPER_RR;
+			local_control.poll = 1;
+			local_control.reqseq = chan->buffer_seq;
+			l2cap_send_sframe(chan, &local_control);
+
+			chan->retry_count = 1;
+			__set_monitor_timer(chan);
+			chan->tx_state = L2CAP_TX_STATE_WAIT_F;
+		}
+		break;
+	case L2CAP_EV_RECV_REQSEQ_AND_FBIT:
+		l2cap_process_reqseq(chan, control->reqseq);
+		break;
+	case L2CAP_EV_EXPLICIT_POLL:
+		l2cap_send_rr_or_rnr(chan, 1);
+		chan->retry_count = 1;
+		__set_monitor_timer(chan);
+		__clear_ack_timer(chan);
+		chan->tx_state = L2CAP_TX_STATE_WAIT_F;
+		break;
+	case L2CAP_EV_RETRANS_TO:
+		l2cap_send_rr_or_rnr(chan, 1);
+		chan->retry_count = 1;
+		__set_monitor_timer(chan);
+		chan->tx_state = L2CAP_TX_STATE_WAIT_F;
+		break;
+	case L2CAP_EV_RECV_FBIT:
+		/* Nothing to process */
+		break;
+	default:
+		break;
+	}
+}
+
+static void l2cap_tx_state_wait_f(struct l2cap_chan *chan,
+				  struct l2cap_ctrl *control,
+				  struct sk_buff_head *skbs, u8 event)
+{
+	BT_DBG("chan %p, control %p, skbs %p, event %d", chan, control, skbs,
+	       event);
+
+	switch (event) {
+	case L2CAP_EV_DATA_REQUEST:
+		if (chan->tx_send_head == NULL)
+			chan->tx_send_head = skb_peek(skbs);
+		/* Queue data, but don't send. */
+		skb_queue_splice_tail_init(skbs, &chan->tx_q);
+		break;
+	case L2CAP_EV_LOCAL_BUSY_DETECTED:
+		BT_DBG("Enter LOCAL_BUSY");
+		set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
+
+		if (chan->rx_state == L2CAP_RX_STATE_SREJ_SENT) {
+			/* The SREJ_SENT state must be aborted if we are to
+			 * enter the LOCAL_BUSY state.
+			 */
+			l2cap_abort_rx_srej_sent(chan);
+		}
+
+		l2cap_send_ack(chan);
+
+		break;
+	case L2CAP_EV_LOCAL_BUSY_CLEAR:
+		BT_DBG("Exit LOCAL_BUSY");
+		clear_bit(CONN_LOCAL_BUSY, &chan->conn_state);
+
+		if (test_bit(CONN_RNR_SENT, &chan->conn_state)) {
+			struct l2cap_ctrl local_control;
+			memset(&local_control, 0, sizeof(local_control));
+			local_control.sframe = 1;
+			local_control.super = L2CAP_SUPER_RR;
+			local_control.poll = 1;
+			local_control.reqseq = chan->buffer_seq;
+			l2cap_send_sframe(chan, &local_control);
+
+			chan->retry_count = 1;
+			__set_monitor_timer(chan);
+			chan->tx_state = L2CAP_TX_STATE_WAIT_F;
+		}
+		break;
+	case L2CAP_EV_RECV_REQSEQ_AND_FBIT:
+		l2cap_process_reqseq(chan, control->reqseq);
+
+		/* Fall through */
+
+	case L2CAP_EV_RECV_FBIT:
+		if (control && control->final) {
+			__clear_monitor_timer(chan);
+			if (chan->unacked_frames > 0)
+				__set_retrans_timer(chan);
+			chan->retry_count = 0;
+			chan->tx_state = L2CAP_TX_STATE_XMIT;
+			BT_DBG("recv fbit tx_state 0x2.2%x", chan->tx_state);
+		}
+		break;
+	case L2CAP_EV_EXPLICIT_POLL:
+		/* Ignore */
+		break;
+	case L2CAP_EV_MONITOR_TO:
+		if (chan->max_tx == 0 || chan->retry_count < chan->max_tx) {
+			l2cap_send_rr_or_rnr(chan, 1);
+			__set_monitor_timer(chan);
+			chan->retry_count++;
+		} else {
+			l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
+		     struct sk_buff_head *skbs, u8 event)
+{
+	BT_DBG("chan %p, control %p, skbs %p, event %d, state %d",
+	       chan, control, skbs, event, chan->tx_state);
+
+	switch (chan->tx_state) {
+	case L2CAP_TX_STATE_XMIT:
+		l2cap_tx_state_xmit(chan, control, skbs, event);
+		break;
+	case L2CAP_TX_STATE_WAIT_F:
+		l2cap_tx_state_wait_f(chan, control, skbs, event);
+		break;
+	default:
+		/* Ignore event */
+		break;
+	}
+}
+
+static void l2cap_pass_to_tx(struct l2cap_chan *chan,
+			     struct l2cap_ctrl *control)
+{
+	BT_DBG("chan %p, control %p", chan, control);
+	l2cap_tx(chan, control, NULL, L2CAP_EV_RECV_REQSEQ_AND_FBIT);
+}
+
+static void l2cap_pass_to_tx_fbit(struct l2cap_chan *chan,
+				  struct l2cap_ctrl *control)
+{
+	BT_DBG("chan %p, control %p", chan, control);
+	l2cap_tx(chan, control, NULL, L2CAP_EV_RECV_FBIT);
+}
+
 /* Copy frame to all raw sockets on that connection */
 static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
 {
@@ -2165,7 +2526,7 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
 		if (!nskb)
 			continue;
 
-		if (chan->ops->recv(chan->data, nskb))
+		if (chan->ops->recv(chan, nskb))
 			kfree_skb(nskb);
 	}
 
@@ -2195,9 +2556,9 @@ static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
 	lh->len = cpu_to_le16(L2CAP_CMD_HDR_SIZE + dlen);
 
 	if (conn->hcon->type == LE_LINK)
-		lh->cid = cpu_to_le16(L2CAP_CID_LE_SIGNALING);
+		lh->cid = __constant_cpu_to_le16(L2CAP_CID_LE_SIGNALING);
 	else
-		lh->cid = cpu_to_le16(L2CAP_CID_SIGNALING);
+		lh->cid = __constant_cpu_to_le16(L2CAP_CID_SIGNALING);
 
 	cmd = (struct l2cap_cmd_hdr *) skb_put(skb, L2CAP_CMD_HDR_SIZE);
 	cmd->code  = code;
@@ -2309,8 +2670,8 @@ static void l2cap_add_opt_efs(void **ptr, struct l2cap_chan *chan)
 		efs.stype	= chan->local_stype;
 		efs.msdu	= cpu_to_le16(chan->local_msdu);
 		efs.sdu_itime	= cpu_to_le32(chan->local_sdu_itime);
-		efs.acc_lat	= cpu_to_le32(L2CAP_DEFAULT_ACC_LAT);
-		efs.flush_to	= cpu_to_le32(L2CAP_DEFAULT_FLUSH_TO);
+		efs.acc_lat	= __constant_cpu_to_le32(L2CAP_DEFAULT_ACC_LAT);
+		efs.flush_to	= __constant_cpu_to_le32(L2CAP_DEFAULT_FLUSH_TO);
 		break;
 
 	case L2CAP_MODE_STREAMING:
@@ -2333,20 +2694,24 @@ static void l2cap_add_opt_efs(void **ptr, struct l2cap_chan *chan)
 static void l2cap_ack_timeout(struct work_struct *work)
 {
 	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
-							ack_timer.work);
+					       ack_timer.work);
+	u16 frames_to_ack;
 
 	BT_DBG("chan %p", chan);
 
 	l2cap_chan_lock(chan);
 
-	__l2cap_send_ack(chan);
+	frames_to_ack = __seq_offset(chan, chan->buffer_seq,
+				     chan->last_acked_seq);
 
-	l2cap_chan_unlock(chan);
+	if (frames_to_ack)
+		l2cap_send_rr_or_rnr(chan, 0);
 
+	l2cap_chan_unlock(chan);
 	l2cap_chan_put(chan);
 }
 
-static inline int l2cap_ertm_init(struct l2cap_chan *chan)
+int l2cap_ertm_init(struct l2cap_chan *chan)
 {
 	int err;
 
@@ -2355,7 +2720,6 @@ static inline int l2cap_ertm_init(struct l2cap_chan *chan)
 	chan->expected_ack_seq = 0;
 	chan->unacked_frames = 0;
 	chan->buffer_seq = 0;
-	chan->num_acked = 0;
 	chan->frames_sent = 0;
 	chan->last_acked_seq = 0;
 	chan->sdu = NULL;
@@ -2376,12 +2740,15 @@ static inline int l2cap_ertm_init(struct l2cap_chan *chan)
 
 	skb_queue_head_init(&chan->srej_q);
 
-	INIT_LIST_HEAD(&chan->srej_l);
 	err = l2cap_seq_list_init(&chan->srej_list, chan->tx_win);
 	if (err < 0)
 		return err;
 
-	return l2cap_seq_list_init(&chan->retrans_list, chan->remote_tx_win);
+	err = l2cap_seq_list_init(&chan->retrans_list, chan->remote_tx_win);
+	if (err < 0)
+		l2cap_seq_list_free(&chan->srej_list);
+
+	return err;
 }
 
 static inline __u8 l2cap_select_mode(__u8 mode, __u16 remote_feat_mask)
@@ -2507,6 +2874,7 @@ done:
 		break;
 
 	case L2CAP_MODE_STREAMING:
+		l2cap_txwin_setup(chan);
 		rfc.mode            = L2CAP_MODE_STREAMING;
 		rfc.txwin_size      = 0;
 		rfc.max_transmit    = 0;
@@ -2537,7 +2905,7 @@ done:
 	}
 
 	req->dcid  = cpu_to_le16(chan->dcid);
-	req->flags = cpu_to_le16(0);
+	req->flags = __constant_cpu_to_le16(0);
 
 	return ptr - data;
 }
@@ -2757,7 +3125,7 @@ done:
 	}
 	rsp->scid   = cpu_to_le16(chan->dcid);
 	rsp->result = cpu_to_le16(result);
-	rsp->flags  = cpu_to_le16(0x0000);
+	rsp->flags  = __constant_cpu_to_le16(0);
 
 	return ptr - data;
 }
@@ -2856,7 +3224,7 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi
 	}
 
 	req->dcid   = cpu_to_le16(chan->dcid);
-	req->flags  = cpu_to_le16(0x0000);
+	req->flags  = __constant_cpu_to_le16(0);
 
 	return ptr - data;
 }
@@ -2883,8 +3251,8 @@ void __l2cap_connect_rsp_defer(struct l2cap_chan *chan)
 
 	rsp.scid   = cpu_to_le16(chan->dcid);
 	rsp.dcid   = cpu_to_le16(chan->scid);
-	rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS);
-	rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
+	rsp.result = __constant_cpu_to_le16(L2CAP_CR_SUCCESS);
+	rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
 	l2cap_send_cmd(conn, chan->ident,
 				L2CAP_CONN_RSP, sizeof(rsp), &rsp);
 
@@ -2922,8 +3290,8 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len)
 	 * did not send an RFC option.
 	 */
 	rfc.mode = chan->mode;
-	rfc.retrans_timeout = cpu_to_le16(L2CAP_DEFAULT_RETRANS_TO);
-	rfc.monitor_timeout = cpu_to_le16(L2CAP_DEFAULT_MONITOR_TO);
+	rfc.retrans_timeout = __constant_cpu_to_le16(L2CAP_DEFAULT_RETRANS_TO);
+	rfc.monitor_timeout = __constant_cpu_to_le16(L2CAP_DEFAULT_MONITOR_TO);
 	rfc.max_pdu_size = cpu_to_le16(chan->imtu);
 
 	BT_ERR("Expected RFC option was not found, using defaults");
@@ -2986,7 +3354,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	lock_sock(parent);
 
 	/* Check if the ACL is secure enough (if not SDP) */
-	if (psm != cpu_to_le16(0x0001) &&
+	if (psm != __constant_cpu_to_le16(L2CAP_PSM_SDP) &&
 				!hci_conn_check_link_mode(conn->hcon)) {
 		conn->disc_reason = HCI_ERROR_AUTH_FAILURE;
 		result = L2CAP_CR_SEC_BLOCK;
@@ -2995,25 +3363,16 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 
 	result = L2CAP_CR_NO_MEM;
 
-	/* Check for backlog size */
-	if (sk_acceptq_is_full(parent)) {
-		BT_DBG("backlog full %d", parent->sk_ack_backlog);
+	/* Check if we already have channel with that dcid */
+	if (__l2cap_get_chan_by_dcid(conn, scid))
 		goto response;
-	}
 
-	chan = pchan->ops->new_connection(pchan->data);
+	chan = pchan->ops->new_connection(pchan);
 	if (!chan)
 		goto response;
 
 	sk = chan->sk;
 
-	/* Check if we already have channel with that dcid */
-	if (__l2cap_get_chan_by_dcid(conn, scid)) {
-		sock_set_flag(sk, SOCK_ZAPPED);
-		chan->ops->close(chan->data);
-		goto response;
-	}
-
 	hci_conn_hold(conn->hcon);
 
 	bacpy(&bt_sk(sk)->src, conn->src);
@@ -3067,7 +3426,7 @@ sendresp:
 
 	if (result == L2CAP_CR_PEND && status == L2CAP_CS_NO_INFO) {
 		struct l2cap_info_req info;
-		info.type = cpu_to_le16(L2CAP_IT_FEAT_MASK);
+		info.type = __constant_cpu_to_le16(L2CAP_IT_FEAT_MASK);
 
 		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_SENT;
 		conn->info_ident = l2cap_get_ident(conn);
@@ -3189,7 +3548,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2) {
 		struct l2cap_cmd_rej_cid rej;
 
-		rej.reason = cpu_to_le16(L2CAP_REJ_INVALID_CID);
+		rej.reason = __constant_cpu_to_le16(L2CAP_REJ_INVALID_CID);
 		rej.scid = cpu_to_le16(chan->scid);
 		rej.dcid = cpu_to_le16(chan->dcid);
 
@@ -3211,11 +3570,11 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	memcpy(chan->conf_req + chan->conf_len, req->data, len);
 	chan->conf_len += len;
 
-	if (flags & 0x0001) {
+	if (flags & L2CAP_CONF_FLAG_CONTINUATION) {
 		/* Incomplete config. Send empty response. */
 		l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
 				l2cap_build_conf_rsp(chan, rsp,
-					L2CAP_CONF_SUCCESS, 0x0001), rsp);
+					L2CAP_CONF_SUCCESS, flags), rsp);
 		goto unlock;
 	}
 
@@ -3238,8 +3597,6 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	if (test_bit(CONF_INPUT_DONE, &chan->conf_state)) {
 		set_default_fcs(chan);
 
-		l2cap_state_change(chan, BT_CONNECTED);
-
 		if (chan->mode == L2CAP_MODE_ERTM ||
 		    chan->mode == L2CAP_MODE_STREAMING)
 			err = l2cap_ertm_init(chan);
@@ -3271,7 +3628,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 
 		l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
 					l2cap_build_conf_rsp(chan, rsp,
-					L2CAP_CONF_SUCCESS, 0x0000), rsp);
+					L2CAP_CONF_SUCCESS, flags), rsp);
 	}
 
 unlock:
@@ -3362,7 +3719,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 		goto done;
 	}
 
-	if (flags & 0x01)
+	if (flags & L2CAP_CONF_FLAG_CONTINUATION)
 		goto done;
 
 	set_bit(CONF_INPUT_DONE, &chan->conf_state);
@@ -3370,7 +3727,6 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
 	if (test_bit(CONF_OUTPUT_DONE, &chan->conf_state)) {
 		set_default_fcs(chan);
 
-		l2cap_state_change(chan, BT_CONNECTED);
 		if (chan->mode == L2CAP_MODE_ERTM ||
 		    chan->mode == L2CAP_MODE_STREAMING)
 			err = l2cap_ertm_init(chan);
@@ -3424,7 +3780,7 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
 
 	l2cap_chan_unlock(chan);
 
-	chan->ops->close(chan->data);
+	chan->ops->close(chan);
 	l2cap_chan_put(chan);
 
 	mutex_unlock(&conn->chan_lock);
@@ -3458,7 +3814,7 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
 
 	l2cap_chan_unlock(chan);
 
-	chan->ops->close(chan->data);
+	chan->ops->close(chan);
 	l2cap_chan_put(chan);
 
 	mutex_unlock(&conn->chan_lock);
@@ -3479,8 +3835,8 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cm
 		u8 buf[8];
 		u32 feat_mask = l2cap_feat_mask;
 		struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;
-		rsp->type   = cpu_to_le16(L2CAP_IT_FEAT_MASK);
-		rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);
+		rsp->type   = __constant_cpu_to_le16(L2CAP_IT_FEAT_MASK);
+		rsp->result = __constant_cpu_to_le16(L2CAP_IR_SUCCESS);
 		if (!disable_ertm)
 			feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING
 							 | L2CAP_FEAT_FCS;
@@ -3500,15 +3856,15 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cm
 		else
 			l2cap_fixed_chan[0] &= ~L2CAP_FC_A2MP;
 
-		rsp->type   = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
-		rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);
+		rsp->type   = __constant_cpu_to_le16(L2CAP_IT_FIXED_CHAN);
+		rsp->result = __constant_cpu_to_le16(L2CAP_IR_SUCCESS);
 		memcpy(rsp->data, l2cap_fixed_chan, sizeof(l2cap_fixed_chan));
 		l2cap_send_cmd(conn, cmd->ident,
 					L2CAP_INFO_RSP, sizeof(buf), buf);
 	} else {
 		struct l2cap_info_rsp rsp;
 		rsp.type   = cpu_to_le16(type);
-		rsp.result = cpu_to_le16(L2CAP_IR_NOTSUPP);
+		rsp.result = __constant_cpu_to_le16(L2CAP_IR_NOTSUPP);
 		l2cap_send_cmd(conn, cmd->ident,
 					L2CAP_INFO_RSP, sizeof(rsp), &rsp);
 	}
@@ -3548,7 +3904,7 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
 
 		if (conn->feat_mask & L2CAP_FEAT_FIXED_CHAN) {
 			struct l2cap_info_req req;
-			req.type = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
+			req.type = __constant_cpu_to_le16(L2CAP_IT_FIXED_CHAN);
 
 			conn->info_ident = l2cap_get_ident(conn);
 
@@ -3783,9 +4139,9 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
 
 	err = l2cap_check_conn_param(min, max, latency, to_multiplier);
 	if (err)
-		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
+		rsp.result = __constant_cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
 	else
-		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_ACCEPTED);
+		rsp.result = __constant_cpu_to_le16(L2CAP_CONN_PARAM_ACCEPTED);
 
 	l2cap_send_cmd(conn, cmd->ident, L2CAP_CONN_PARAM_UPDATE_RSP,
 							sizeof(rsp), &rsp);
@@ -3933,7 +4289,7 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 			BT_ERR("Wrong link type (%d)", err);
 
 			/* FIXME: Map err to a valid reason */
-			rej.reason = cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
+			rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
 			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ, sizeof(rej), &rej);
 		}
 
@@ -3965,65 +4321,38 @@ static int l2cap_check_fcs(struct l2cap_chan *chan,  struct sk_buff *skb)
 	return 0;
 }
 
-static inline void l2cap_send_i_or_rr_or_rnr(struct l2cap_chan *chan)
+static void l2cap_send_i_or_rr_or_rnr(struct l2cap_chan *chan)
 {
-	u32 control = 0;
+	struct l2cap_ctrl control;
 
-	chan->frames_sent = 0;
+	BT_DBG("chan %p", chan);
 
-	control |= __set_reqseq(chan, chan->buffer_seq);
+	memset(&control, 0, sizeof(control));
+	control.sframe = 1;
+	control.final = 1;
+	control.reqseq = chan->buffer_seq;
+	set_bit(CONN_SEND_FBIT, &chan->conn_state);
 
 	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
-		control |= __set_ctrl_super(chan, L2CAP_SUPER_RNR);
-		l2cap_send_sframe(chan, control);
-		set_bit(CONN_RNR_SENT, &chan->conn_state);
+		control.super = L2CAP_SUPER_RNR;
+		l2cap_send_sframe(chan, &control);
 	}
 
-	if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state))
-		l2cap_retransmit_frames(chan);
+	if (test_and_clear_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
+	    chan->unacked_frames > 0)
+		__set_retrans_timer(chan);
 
+	/* Send pending iframes */
 	l2cap_ertm_send(chan);
 
 	if (!test_bit(CONN_LOCAL_BUSY, &chan->conn_state) &&
-			chan->frames_sent == 0) {
-		control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
-		l2cap_send_sframe(chan, control);
-	}
-}
-
-static int l2cap_add_to_srej_queue(struct l2cap_chan *chan, struct sk_buff *skb, u16 tx_seq, u8 sar)
-{
-	struct sk_buff *next_skb;
-	int tx_seq_offset, next_tx_seq_offset;
-
-	bt_cb(skb)->control.txseq = tx_seq;
-	bt_cb(skb)->control.sar = sar;
-
-	next_skb = skb_peek(&chan->srej_q);
-
-	tx_seq_offset = __seq_offset(chan, tx_seq, chan->buffer_seq);
-
-	while (next_skb) {
-		if (bt_cb(next_skb)->control.txseq == tx_seq)
-			return -EINVAL;
-
-		next_tx_seq_offset = __seq_offset(chan,
-			bt_cb(next_skb)->control.txseq, chan->buffer_seq);
-
-		if (next_tx_seq_offset > tx_seq_offset) {
-			__skb_queue_before(&chan->srej_q, next_skb, skb);
-			return 0;
-		}
-
-		if (skb_queue_is_last(&chan->srej_q, next_skb))
-			next_skb = NULL;
-		else
-			next_skb = skb_queue_next(&chan->srej_q, next_skb);
+	    test_bit(CONN_SEND_FBIT, &chan->conn_state)) {
+		/* F-bit wasn't sent in an s-frame or i-frame yet, so
+		 * send it now.
+		 */
+		control.super = L2CAP_SUPER_RR;
+		l2cap_send_sframe(chan, &control);
 	}
-
-	__skb_queue_tail(&chan->srej_q, skb);
-
-	return 0;
 }
 
 static void append_skb_frag(struct sk_buff *skb,
@@ -4045,16 +4374,17 @@ static void append_skb_frag(struct sk_buff *skb,
 	skb->truesize += new_frag->truesize;
 }
 
-static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u32 control)
+static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb,
+				struct l2cap_ctrl *control)
 {
 	int err = -EINVAL;
 
-	switch (__get_ctrl_sar(chan, control)) {
+	switch (control->sar) {
 	case L2CAP_SAR_UNSEGMENTED:
 		if (chan->sdu)
 			break;
 
-		err = chan->ops->recv(chan->data, skb);
+		err = chan->ops->recv(chan, skb);
 		break;
 
 	case L2CAP_SAR_START:
@@ -4104,7 +4434,7 @@ static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u3
 		if (chan->sdu->len != chan->sdu_len)
 			break;
 
-		err = chan->ops->recv(chan->data, chan->sdu);
+		err = chan->ops->recv(chan, chan->sdu);
 
 		if (!err) {
 			/* Reassembly complete */
@@ -4126,448 +4456,609 @@ static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u3
 	return err;
 }
 
-static void l2cap_ertm_enter_local_busy(struct l2cap_chan *chan)
+void l2cap_chan_busy(struct l2cap_chan *chan, int busy)
 {
-	BT_DBG("chan %p, Enter local busy", chan);
+	u8 event;
 
-	set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
-	l2cap_seq_list_clear(&chan->srej_list);
+	if (chan->mode != L2CAP_MODE_ERTM)
+		return;
 
-	__set_ack_timer(chan);
+	event = busy ? L2CAP_EV_LOCAL_BUSY_DETECTED : L2CAP_EV_LOCAL_BUSY_CLEAR;
+	l2cap_tx(chan, NULL, NULL, event);
 }
 
-static void l2cap_ertm_exit_local_busy(struct l2cap_chan *chan)
+static int l2cap_rx_queued_iframes(struct l2cap_chan *chan)
 {
-	u32 control;
-
-	if (!test_bit(CONN_RNR_SENT, &chan->conn_state))
-		goto done;
+	int err = 0;
+	/* Pass sequential frames to l2cap_reassemble_sdu()
+	 * until a gap is encountered.
+	 */
 
-	control = __set_reqseq(chan, chan->buffer_seq);
-	control |= __set_ctrl_poll(chan);
-	control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
-	l2cap_send_sframe(chan, control);
-	chan->retry_count = 1;
+	BT_DBG("chan %p", chan);
 
-	__clear_retrans_timer(chan);
-	__set_monitor_timer(chan);
+	while (!test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+		struct sk_buff *skb;
+		BT_DBG("Searching for skb with txseq %d (queue len %d)",
+		       chan->buffer_seq, skb_queue_len(&chan->srej_q));
 
-	set_bit(CONN_WAIT_F, &chan->conn_state);
+		skb = l2cap_ertm_seq_in_queue(&chan->srej_q, chan->buffer_seq);
 
-done:
-	clear_bit(CONN_LOCAL_BUSY, &chan->conn_state);
-	clear_bit(CONN_RNR_SENT, &chan->conn_state);
+		if (!skb)
+			break;
 
-	BT_DBG("chan %p, Exit local busy", chan);
-}
+		skb_unlink(skb, &chan->srej_q);
+		chan->buffer_seq = __next_seq(chan, chan->buffer_seq);
+		err = l2cap_reassemble_sdu(chan, skb, &bt_cb(skb)->control);
+		if (err)
+			break;
+	}
 
-void l2cap_chan_busy(struct l2cap_chan *chan, int busy)
-{
-	if (chan->mode == L2CAP_MODE_ERTM) {
-		if (busy)
-			l2cap_ertm_enter_local_busy(chan);
-		else
-			l2cap_ertm_exit_local_busy(chan);
+	if (skb_queue_empty(&chan->srej_q)) {
+		chan->rx_state = L2CAP_RX_STATE_RECV;
+		l2cap_send_ack(chan);
 	}
+
+	return err;
 }
 
-static void l2cap_check_srej_gap(struct l2cap_chan *chan, u16 tx_seq)
+static void l2cap_handle_srej(struct l2cap_chan *chan,
+			      struct l2cap_ctrl *control)
 {
 	struct sk_buff *skb;
-	u32 control;
 
-	while ((skb = skb_peek(&chan->srej_q)) &&
-			!test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
-		int err;
+	BT_DBG("chan %p, control %p", chan, control);
 
-		if (bt_cb(skb)->control.txseq != tx_seq)
-			break;
+	if (control->reqseq == chan->next_tx_seq) {
+		BT_DBG("Invalid reqseq %d, disconnecting", control->reqseq);
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		return;
+	}
 
-		skb = skb_dequeue(&chan->srej_q);
-		control = __set_ctrl_sar(chan, bt_cb(skb)->control.sar);
-		err = l2cap_reassemble_sdu(chan, skb, control);
+	skb = l2cap_ertm_seq_in_queue(&chan->tx_q, control->reqseq);
 
-		if (err < 0) {
-			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
-			break;
-		}
+	if (skb == NULL) {
+		BT_DBG("Seq %d not available for retransmission",
+		       control->reqseq);
+		return;
+	}
 
-		chan->buffer_seq_srej = __next_seq(chan, chan->buffer_seq_srej);
-		tx_seq = __next_seq(chan, tx_seq);
+	if (chan->max_tx != 0 && bt_cb(skb)->control.retries >= chan->max_tx) {
+		BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		return;
 	}
-}
 
-static void l2cap_resend_srejframe(struct l2cap_chan *chan, u16 tx_seq)
-{
-	struct srej_list *l, *tmp;
-	u32 control;
+	clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
 
-	list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
-		if (l->tx_seq == tx_seq) {
-			list_del(&l->list);
-			kfree(l);
-			return;
+	if (control->poll) {
+		l2cap_pass_to_tx(chan, control);
+
+		set_bit(CONN_SEND_FBIT, &chan->conn_state);
+		l2cap_retransmit(chan, control);
+		l2cap_ertm_send(chan);
+
+		if (chan->tx_state == L2CAP_TX_STATE_WAIT_F) {
+			set_bit(CONN_SREJ_ACT, &chan->conn_state);
+			chan->srej_save_reqseq = control->reqseq;
+		}
+	} else {
+		l2cap_pass_to_tx_fbit(chan, control);
+
+		if (control->final) {
+			if (chan->srej_save_reqseq != control->reqseq ||
+			    !test_and_clear_bit(CONN_SREJ_ACT,
+						&chan->conn_state))
+				l2cap_retransmit(chan, control);
+		} else {
+			l2cap_retransmit(chan, control);
+			if (chan->tx_state == L2CAP_TX_STATE_WAIT_F) {
+				set_bit(CONN_SREJ_ACT, &chan->conn_state);
+				chan->srej_save_reqseq = control->reqseq;
+			}
 		}
-		control = __set_ctrl_super(chan, L2CAP_SUPER_SREJ);
-		control |= __set_reqseq(chan, l->tx_seq);
-		l2cap_send_sframe(chan, control);
-		list_del(&l->list);
-		list_add_tail(&l->list, &chan->srej_l);
 	}
 }
 
-static int l2cap_send_srejframe(struct l2cap_chan *chan, u16 tx_seq)
+static void l2cap_handle_rej(struct l2cap_chan *chan,
+			     struct l2cap_ctrl *control)
 {
-	struct srej_list *new;
-	u32 control;
-
-	while (tx_seq != chan->expected_tx_seq) {
-		control = __set_ctrl_super(chan, L2CAP_SUPER_SREJ);
-		control |= __set_reqseq(chan, chan->expected_tx_seq);
-		l2cap_seq_list_append(&chan->srej_list, chan->expected_tx_seq);
-		l2cap_send_sframe(chan, control);
+	struct sk_buff *skb;
 
-		new = kzalloc(sizeof(struct srej_list), GFP_ATOMIC);
-		if (!new)
-			return -ENOMEM;
+	BT_DBG("chan %p, control %p", chan, control);
 
-		new->tx_seq = chan->expected_tx_seq;
+	if (control->reqseq == chan->next_tx_seq) {
+		BT_DBG("Invalid reqseq %d, disconnecting", control->reqseq);
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		return;
+	}
 
-		chan->expected_tx_seq = __next_seq(chan, chan->expected_tx_seq);
+	skb = l2cap_ertm_seq_in_queue(&chan->tx_q, control->reqseq);
 
-		list_add_tail(&new->list, &chan->srej_l);
+	if (chan->max_tx && skb &&
+	    bt_cb(skb)->control.retries >= chan->max_tx) {
+		BT_DBG("Retry limit exceeded (%d)", chan->max_tx);
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		return;
 	}
 
-	chan->expected_tx_seq = __next_seq(chan, chan->expected_tx_seq);
+	clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
 
-	return 0;
+	l2cap_pass_to_tx(chan, control);
+
+	if (control->final) {
+		if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
+			l2cap_retransmit_all(chan, control);
+	} else {
+		l2cap_retransmit_all(chan, control);
+		l2cap_ertm_send(chan);
+		if (chan->tx_state == L2CAP_TX_STATE_WAIT_F)
+			set_bit(CONN_REJ_ACT, &chan->conn_state);
+	}
 }
 
-static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u32 rx_control, struct sk_buff *skb)
+static u8 l2cap_classify_txseq(struct l2cap_chan *chan, u16 txseq)
 {
-	u16 tx_seq = __get_txseq(chan, rx_control);
-	u16 req_seq = __get_reqseq(chan, rx_control);
-	u8 sar = __get_ctrl_sar(chan, rx_control);
-	int tx_seq_offset, expected_tx_seq_offset;
-	int num_to_ack = (chan->tx_win/6) + 1;
-	int err = 0;
+	BT_DBG("chan %p, txseq %d", chan, txseq);
 
-	BT_DBG("chan %p len %d tx_seq %d rx_control 0x%8.8x", chan, skb->len,
-							tx_seq, rx_control);
+	BT_DBG("last_acked_seq %d, expected_tx_seq %d", chan->last_acked_seq,
+	       chan->expected_tx_seq);
 
-	if (__is_ctrl_final(chan, rx_control) &&
-			test_bit(CONN_WAIT_F, &chan->conn_state)) {
-		__clear_monitor_timer(chan);
-		if (chan->unacked_frames > 0)
-			__set_retrans_timer(chan);
-		clear_bit(CONN_WAIT_F, &chan->conn_state);
-	}
+	if (chan->rx_state == L2CAP_RX_STATE_SREJ_SENT) {
+		if (__seq_offset(chan, txseq, chan->last_acked_seq) >=
+								chan->tx_win) {
+			/* See notes below regarding "double poll" and
+			 * invalid packets.
+			 */
+			if (chan->tx_win <= ((chan->tx_win_max + 1) >> 1)) {
+				BT_DBG("Invalid/Ignore - after SREJ");
+				return L2CAP_TXSEQ_INVALID_IGNORE;
+			} else {
+				BT_DBG("Invalid - in window after SREJ sent");
+				return L2CAP_TXSEQ_INVALID;
+			}
+		}
 
-	chan->expected_ack_seq = req_seq;
-	l2cap_drop_acked_frames(chan);
+		if (chan->srej_list.head == txseq) {
+			BT_DBG("Expected SREJ");
+			return L2CAP_TXSEQ_EXPECTED_SREJ;
+		}
 
-	tx_seq_offset = __seq_offset(chan, tx_seq, chan->buffer_seq);
+		if (l2cap_ertm_seq_in_queue(&chan->srej_q, txseq)) {
+			BT_DBG("Duplicate SREJ - txseq already stored");
+			return L2CAP_TXSEQ_DUPLICATE_SREJ;
+		}
 
-	/* invalid tx_seq */
-	if (tx_seq_offset >= chan->tx_win) {
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
-		goto drop;
+		if (l2cap_seq_list_contains(&chan->srej_list, txseq)) {
+			BT_DBG("Unexpected SREJ - not requested");
+			return L2CAP_TXSEQ_UNEXPECTED_SREJ;
+		}
 	}
 
-	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
-		if (!test_bit(CONN_RNR_SENT, &chan->conn_state))
-			l2cap_send_ack(chan);
-		goto drop;
+	if (chan->expected_tx_seq == txseq) {
+		if (__seq_offset(chan, txseq, chan->last_acked_seq) >=
+		    chan->tx_win) {
+			BT_DBG("Invalid - txseq outside tx window");
+			return L2CAP_TXSEQ_INVALID;
+		} else {
+			BT_DBG("Expected");
+			return L2CAP_TXSEQ_EXPECTED;
+		}
 	}
 
-	if (tx_seq == chan->expected_tx_seq)
-		goto expected;
+	if (__seq_offset(chan, txseq, chan->last_acked_seq) <
+		__seq_offset(chan, chan->expected_tx_seq,
+			     chan->last_acked_seq)){
+		BT_DBG("Duplicate - expected_tx_seq later than txseq");
+		return L2CAP_TXSEQ_DUPLICATE;
+	}
+
+	if (__seq_offset(chan, txseq, chan->last_acked_seq) >= chan->tx_win) {
+		/* A source of invalid packets is a "double poll" condition,
+		 * where delays cause us to send multiple poll packets.  If
+		 * the remote stack receives and processes both polls,
+		 * sequence numbers can wrap around in such a way that a
+		 * resent frame has a sequence number that looks like new data
+		 * with a sequence gap.  This would trigger an erroneous SREJ
+		 * request.
+		 *
+		 * Fortunately, this is impossible with a tx window that's
+		 * less than half of the maximum sequence number, which allows
+		 * invalid frames to be safely ignored.
+		 *
+		 * With tx window sizes greater than half of the tx window
+		 * maximum, the frame is invalid and cannot be ignored.  This
+		 * causes a disconnect.
+		 */
+
+		if (chan->tx_win <= ((chan->tx_win_max + 1) >> 1)) {
+			BT_DBG("Invalid/Ignore - txseq outside tx window");
+			return L2CAP_TXSEQ_INVALID_IGNORE;
+		} else {
+			BT_DBG("Invalid - txseq outside tx window");
+			return L2CAP_TXSEQ_INVALID;
+		}
+	} else {
+		BT_DBG("Unexpected - txseq indicates missing frames");
+		return L2CAP_TXSEQ_UNEXPECTED;
+	}
+}
 
-	if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
-		struct srej_list *first;
+static int l2cap_rx_state_recv(struct l2cap_chan *chan,
+			       struct l2cap_ctrl *control,
+			       struct sk_buff *skb, u8 event)
+{
+	int err = 0;
+	bool skb_in_use = 0;
 
-		first = list_first_entry(&chan->srej_l,
-				struct srej_list, list);
-		if (tx_seq == first->tx_seq) {
-			l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
-			l2cap_check_srej_gap(chan, tx_seq);
+	BT_DBG("chan %p, control %p, skb %p, event %d", chan, control, skb,
+	       event);
 
-			list_del(&first->list);
-			kfree(first);
+	switch (event) {
+	case L2CAP_EV_RECV_IFRAME:
+		switch (l2cap_classify_txseq(chan, control->txseq)) {
+		case L2CAP_TXSEQ_EXPECTED:
+			l2cap_pass_to_tx(chan, control);
 
-			if (list_empty(&chan->srej_l)) {
-				chan->buffer_seq = chan->buffer_seq_srej;
-				clear_bit(CONN_SREJ_SENT, &chan->conn_state);
-				l2cap_send_ack(chan);
-				BT_DBG("chan %p, Exit SREJ_SENT", chan);
+			if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+				BT_DBG("Busy, discarding expected seq %d",
+				       control->txseq);
+				break;
 			}
-		} else {
-			struct srej_list *l;
 
-			/* duplicated tx_seq */
-			if (l2cap_add_to_srej_queue(chan, skb, tx_seq, sar) < 0)
-				goto drop;
+			chan->expected_tx_seq = __next_seq(chan,
+							   control->txseq);
+
+			chan->buffer_seq = chan->expected_tx_seq;
+			skb_in_use = 1;
 
-			list_for_each_entry(l, &chan->srej_l, list) {
-				if (l->tx_seq == tx_seq) {
-					l2cap_resend_srejframe(chan, tx_seq);
-					return 0;
+			err = l2cap_reassemble_sdu(chan, skb, control);
+			if (err)
+				break;
+
+			if (control->final) {
+				if (!test_and_clear_bit(CONN_REJ_ACT,
+							&chan->conn_state)) {
+					control->final = 0;
+					l2cap_retransmit_all(chan, control);
+					l2cap_ertm_send(chan);
 				}
 			}
 
-			err = l2cap_send_srejframe(chan, tx_seq);
-			if (err < 0) {
-				l2cap_send_disconn_req(chan->conn, chan, -err);
-				return err;
+			if (!test_bit(CONN_LOCAL_BUSY, &chan->conn_state))
+				l2cap_send_ack(chan);
+			break;
+		case L2CAP_TXSEQ_UNEXPECTED:
+			l2cap_pass_to_tx(chan, control);
+
+			/* Can't issue SREJ frames in the local busy state.
+			 * Drop this frame, it will be seen as missing
+			 * when local busy is exited.
+			 */
+			if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+				BT_DBG("Busy, discarding unexpected seq %d",
+				       control->txseq);
+				break;
 			}
-		}
-	} else {
-		expected_tx_seq_offset = __seq_offset(chan,
-				chan->expected_tx_seq, chan->buffer_seq);
 
-		/* duplicated tx_seq */
-		if (tx_seq_offset < expected_tx_seq_offset)
-			goto drop;
-
-		set_bit(CONN_SREJ_SENT, &chan->conn_state);
+			/* There was a gap in the sequence, so an SREJ
+			 * must be sent for each missing frame.  The
+			 * current frame is stored for later use.
+			 */
+			skb_queue_tail(&chan->srej_q, skb);
+			skb_in_use = 1;
+			BT_DBG("Queued %p (queue len %d)", skb,
+			       skb_queue_len(&chan->srej_q));
 
-		BT_DBG("chan %p, Enter SREJ", chan);
+			clear_bit(CONN_SREJ_ACT, &chan->conn_state);
+			l2cap_seq_list_clear(&chan->srej_list);
+			l2cap_send_srej(chan, control->txseq);
 
-		INIT_LIST_HEAD(&chan->srej_l);
-		chan->buffer_seq_srej = chan->buffer_seq;
+			chan->rx_state = L2CAP_RX_STATE_SREJ_SENT;
+			break;
+		case L2CAP_TXSEQ_DUPLICATE:
+			l2cap_pass_to_tx(chan, control);
+			break;
+		case L2CAP_TXSEQ_INVALID_IGNORE:
+			break;
+		case L2CAP_TXSEQ_INVALID:
+		default:
+			l2cap_send_disconn_req(chan->conn, chan,
+					       ECONNRESET);
+			break;
+		}
+		break;
+	case L2CAP_EV_RECV_RR:
+		l2cap_pass_to_tx(chan, control);
+		if (control->final) {
+			clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
 
-		__skb_queue_head_init(&chan->srej_q);
-		l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
+			if (!test_and_clear_bit(CONN_REJ_ACT,
+						&chan->conn_state)) {
+				control->final = 0;
+				l2cap_retransmit_all(chan, control);
+			}
 
-		/* Set P-bit only if there are some I-frames to ack. */
-		if (__clear_ack_timer(chan))
-			set_bit(CONN_SEND_PBIT, &chan->conn_state);
+			l2cap_ertm_send(chan);
+		} else if (control->poll) {
+			l2cap_send_i_or_rr_or_rnr(chan);
+		} else {
+			if (test_and_clear_bit(CONN_REMOTE_BUSY,
+					       &chan->conn_state) &&
+			    chan->unacked_frames)
+				__set_retrans_timer(chan);
 
-		err = l2cap_send_srejframe(chan, tx_seq);
-		if (err < 0) {
-			l2cap_send_disconn_req(chan->conn, chan, -err);
-			return err;
+			l2cap_ertm_send(chan);
 		}
+		break;
+	case L2CAP_EV_RECV_RNR:
+		set_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+		l2cap_pass_to_tx(chan, control);
+		if (control && control->poll) {
+			set_bit(CONN_SEND_FBIT, &chan->conn_state);
+			l2cap_send_rr_or_rnr(chan, 0);
+		}
+		__clear_retrans_timer(chan);
+		l2cap_seq_list_clear(&chan->retrans_list);
+		break;
+	case L2CAP_EV_RECV_REJ:
+		l2cap_handle_rej(chan, control);
+		break;
+	case L2CAP_EV_RECV_SREJ:
+		l2cap_handle_srej(chan, control);
+		break;
+	default:
+		break;
 	}
-	return 0;
-
-expected:
-	chan->expected_tx_seq = __next_seq(chan, chan->expected_tx_seq);
-
-	if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
-		bt_cb(skb)->control.txseq = tx_seq;
-		bt_cb(skb)->control.sar = sar;
-		__skb_queue_tail(&chan->srej_q, skb);
-		return 0;
-	}
-
-	err = l2cap_reassemble_sdu(chan, skb, rx_control);
-	chan->buffer_seq = __next_seq(chan, chan->buffer_seq);
 
-	if (err < 0) {
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
-		return err;
+	if (skb && !skb_in_use) {
+		BT_DBG("Freeing %p", skb);
+		kfree_skb(skb);
 	}
 
-	if (__is_ctrl_final(chan, rx_control)) {
-		if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
-			l2cap_retransmit_frames(chan);
-	}
+	return err;
+}
 
+static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
+				    struct l2cap_ctrl *control,
+				    struct sk_buff *skb, u8 event)
+{
+	int err = 0;
+	u16 txseq = control->txseq;
+	bool skb_in_use = 0;
+
+	BT_DBG("chan %p, control %p, skb %p, event %d", chan, control, skb,
+	       event);
+
+	switch (event) {
+	case L2CAP_EV_RECV_IFRAME:
+		switch (l2cap_classify_txseq(chan, txseq)) {
+		case L2CAP_TXSEQ_EXPECTED:
+			/* Keep frame for reassembly later */
+			l2cap_pass_to_tx(chan, control);
+			skb_queue_tail(&chan->srej_q, skb);
+			skb_in_use = 1;
+			BT_DBG("Queued %p (queue len %d)", skb,
+			       skb_queue_len(&chan->srej_q));
+
+			chan->expected_tx_seq = __next_seq(chan, txseq);
+			break;
+		case L2CAP_TXSEQ_EXPECTED_SREJ:
+			l2cap_seq_list_pop(&chan->srej_list);
 
-	chan->num_acked = (chan->num_acked + 1) % num_to_ack;
-	if (chan->num_acked == num_to_ack - 1)
-		l2cap_send_ack(chan);
-	else
-		__set_ack_timer(chan);
+			l2cap_pass_to_tx(chan, control);
+			skb_queue_tail(&chan->srej_q, skb);
+			skb_in_use = 1;
+			BT_DBG("Queued %p (queue len %d)", skb,
+			       skb_queue_len(&chan->srej_q));
 
-	return 0;
+			err = l2cap_rx_queued_iframes(chan);
+			if (err)
+				break;
 
-drop:
-	kfree_skb(skb);
-	return 0;
-}
+			break;
+		case L2CAP_TXSEQ_UNEXPECTED:
+			/* Got a frame that can't be reassembled yet.
+			 * Save it for later, and send SREJs to cover
+			 * the missing frames.
+			 */
+			skb_queue_tail(&chan->srej_q, skb);
+			skb_in_use = 1;
+			BT_DBG("Queued %p (queue len %d)", skb,
+			       skb_queue_len(&chan->srej_q));
+
+			l2cap_pass_to_tx(chan, control);
+			l2cap_send_srej(chan, control->txseq);
+			break;
+		case L2CAP_TXSEQ_UNEXPECTED_SREJ:
+			/* This frame was requested with an SREJ, but
+			 * some expected retransmitted frames are
+			 * missing.  Request retransmission of missing
+			 * SREJ'd frames.
+			 */
+			skb_queue_tail(&chan->srej_q, skb);
+			skb_in_use = 1;
+			BT_DBG("Queued %p (queue len %d)", skb,
+			       skb_queue_len(&chan->srej_q));
+
+			l2cap_pass_to_tx(chan, control);
+			l2cap_send_srej_list(chan, control->txseq);
+			break;
+		case L2CAP_TXSEQ_DUPLICATE_SREJ:
+			/* We've already queued this frame.  Drop this copy. */
+			l2cap_pass_to_tx(chan, control);
+			break;
+		case L2CAP_TXSEQ_DUPLICATE:
+			/* Expecting a later sequence number, so this frame
+			 * was already received.  Ignore it completely.
+			 */
+			break;
+		case L2CAP_TXSEQ_INVALID_IGNORE:
+			break;
+		case L2CAP_TXSEQ_INVALID:
+		default:
+			l2cap_send_disconn_req(chan->conn, chan,
+					       ECONNRESET);
+			break;
+		}
+		break;
+	case L2CAP_EV_RECV_RR:
+		l2cap_pass_to_tx(chan, control);
+		if (control->final) {
+			clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
 
-static inline void l2cap_data_channel_rrframe(struct l2cap_chan *chan, u32 rx_control)
-{
-	BT_DBG("chan %p, req_seq %d ctrl 0x%8.8x", chan,
-				__get_reqseq(chan, rx_control), rx_control);
+			if (!test_and_clear_bit(CONN_REJ_ACT,
+						&chan->conn_state)) {
+				control->final = 0;
+				l2cap_retransmit_all(chan, control);
+			}
 
-	chan->expected_ack_seq = __get_reqseq(chan, rx_control);
-	l2cap_drop_acked_frames(chan);
+			l2cap_ertm_send(chan);
+		} else if (control->poll) {
+			if (test_and_clear_bit(CONN_REMOTE_BUSY,
+					       &chan->conn_state) &&
+			    chan->unacked_frames) {
+				__set_retrans_timer(chan);
+			}
 
-	if (__is_ctrl_poll(chan, rx_control)) {
-		set_bit(CONN_SEND_FBIT, &chan->conn_state);
-		if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
-			if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
-					(chan->unacked_frames > 0))
+			set_bit(CONN_SEND_FBIT, &chan->conn_state);
+			l2cap_send_srej_tail(chan);
+		} else {
+			if (test_and_clear_bit(CONN_REMOTE_BUSY,
+					       &chan->conn_state) &&
+			    chan->unacked_frames)
 				__set_retrans_timer(chan);
 
-			clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
-			l2cap_send_srejtail(chan);
+			l2cap_send_ack(chan);
+		}
+		break;
+	case L2CAP_EV_RECV_RNR:
+		set_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+		l2cap_pass_to_tx(chan, control);
+		if (control->poll) {
+			l2cap_send_srej_tail(chan);
 		} else {
-			l2cap_send_i_or_rr_or_rnr(chan);
+			struct l2cap_ctrl rr_control;
+			memset(&rr_control, 0, sizeof(rr_control));
+			rr_control.sframe = 1;
+			rr_control.super = L2CAP_SUPER_RR;
+			rr_control.reqseq = chan->buffer_seq;
+			l2cap_send_sframe(chan, &rr_control);
 		}
 
-	} else if (__is_ctrl_final(chan, rx_control)) {
-		clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
-
-		if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
-			l2cap_retransmit_frames(chan);
-
-	} else {
-		if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
-				(chan->unacked_frames > 0))
-			__set_retrans_timer(chan);
+		break;
+	case L2CAP_EV_RECV_REJ:
+		l2cap_handle_rej(chan, control);
+		break;
+	case L2CAP_EV_RECV_SREJ:
+		l2cap_handle_srej(chan, control);
+		break;
+	}
 
-		clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
-		if (test_bit(CONN_SREJ_SENT, &chan->conn_state))
-			l2cap_send_ack(chan);
-		else
-			l2cap_ertm_send(chan);
+	if (skb && !skb_in_use) {
+		BT_DBG("Freeing %p", skb);
+		kfree_skb(skb);
 	}
+
+	return err;
 }
 
-static inline void l2cap_data_channel_rejframe(struct l2cap_chan *chan, u32 rx_control)
+static bool __valid_reqseq(struct l2cap_chan *chan, u16 reqseq)
 {
-	u16 tx_seq = __get_reqseq(chan, rx_control);
-
-	BT_DBG("chan %p, req_seq %d ctrl 0x%8.8x", chan, tx_seq, rx_control);
-
-	clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
-
-	chan->expected_ack_seq = tx_seq;
-	l2cap_drop_acked_frames(chan);
-
-	if (__is_ctrl_final(chan, rx_control)) {
-		if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
-			l2cap_retransmit_frames(chan);
-	} else {
-		l2cap_retransmit_frames(chan);
+	/* Make sure reqseq is for a packet that has been sent but not acked */
+	u16 unacked;
 
-		if (test_bit(CONN_WAIT_F, &chan->conn_state))
-			set_bit(CONN_REJ_ACT, &chan->conn_state);
-	}
+	unacked = __seq_offset(chan, chan->next_tx_seq, chan->expected_ack_seq);
+	return __seq_offset(chan, chan->next_tx_seq, reqseq) <= unacked;
 }
-static inline void l2cap_data_channel_srejframe(struct l2cap_chan *chan, u32 rx_control)
-{
-	u16 tx_seq = __get_reqseq(chan, rx_control);
-
-	BT_DBG("chan %p, req_seq %d ctrl 0x%8.8x", chan, tx_seq, rx_control);
-
-	clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
 
-	if (__is_ctrl_poll(chan, rx_control)) {
-		chan->expected_ack_seq = tx_seq;
-		l2cap_drop_acked_frames(chan);
-
-		set_bit(CONN_SEND_FBIT, &chan->conn_state);
-		l2cap_retransmit_one_frame(chan, tx_seq);
+static int l2cap_rx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
+		    struct sk_buff *skb, u8 event)
+{
+	int err = 0;
 
-		l2cap_ertm_send(chan);
+	BT_DBG("chan %p, control %p, skb %p, event %d, state %d", chan,
+	       control, skb, event, chan->rx_state);
 
-		if (test_bit(CONN_WAIT_F, &chan->conn_state)) {
-			chan->srej_save_reqseq = tx_seq;
-			set_bit(CONN_SREJ_ACT, &chan->conn_state);
+	if (__valid_reqseq(chan, control->reqseq)) {
+		switch (chan->rx_state) {
+		case L2CAP_RX_STATE_RECV:
+			err = l2cap_rx_state_recv(chan, control, skb, event);
+			break;
+		case L2CAP_RX_STATE_SREJ_SENT:
+			err = l2cap_rx_state_srej_sent(chan, control, skb,
+						       event);
+			break;
+		default:
+			/* shut it down */
+			break;
 		}
-	} else if (__is_ctrl_final(chan, rx_control)) {
-		if (test_bit(CONN_SREJ_ACT, &chan->conn_state) &&
-				chan->srej_save_reqseq == tx_seq)
-			clear_bit(CONN_SREJ_ACT, &chan->conn_state);
-		else
-			l2cap_retransmit_one_frame(chan, tx_seq);
 	} else {
-		l2cap_retransmit_one_frame(chan, tx_seq);
-		if (test_bit(CONN_WAIT_F, &chan->conn_state)) {
-			chan->srej_save_reqseq = tx_seq;
-			set_bit(CONN_SREJ_ACT, &chan->conn_state);
-		}
+		BT_DBG("Invalid reqseq %d (next_tx_seq %d, expected_ack_seq %d",
+		       control->reqseq, chan->next_tx_seq,
+		       chan->expected_ack_seq);
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
 	}
+
+	return err;
 }
 
-static inline void l2cap_data_channel_rnrframe(struct l2cap_chan *chan, u32 rx_control)
+static int l2cap_stream_rx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
+			   struct sk_buff *skb)
 {
-	u16 tx_seq = __get_reqseq(chan, rx_control);
+	int err = 0;
 
-	BT_DBG("chan %p, req_seq %d ctrl 0x%8.8x", chan, tx_seq, rx_control);
+	BT_DBG("chan %p, control %p, skb %p, state %d", chan, control, skb,
+	       chan->rx_state);
 
-	set_bit(CONN_REMOTE_BUSY, &chan->conn_state);
-	chan->expected_ack_seq = tx_seq;
-	l2cap_drop_acked_frames(chan);
+	if (l2cap_classify_txseq(chan, control->txseq) ==
+	    L2CAP_TXSEQ_EXPECTED) {
+		l2cap_pass_to_tx(chan, control);
 
-	if (__is_ctrl_poll(chan, rx_control))
-		set_bit(CONN_SEND_FBIT, &chan->conn_state);
+		BT_DBG("buffer_seq %d->%d", chan->buffer_seq,
+		       __next_seq(chan, chan->buffer_seq));
 
-	if (!test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
-		__clear_retrans_timer(chan);
-		if (__is_ctrl_poll(chan, rx_control))
-			l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_FINAL);
-		return;
-	}
+		chan->buffer_seq = __next_seq(chan, chan->buffer_seq);
 
-	if (__is_ctrl_poll(chan, rx_control)) {
-		l2cap_send_srejtail(chan);
+		l2cap_reassemble_sdu(chan, skb, control);
 	} else {
-		rx_control = __set_ctrl_super(chan, L2CAP_SUPER_RR);
-		l2cap_send_sframe(chan, rx_control);
-	}
-}
-
-static inline int l2cap_data_channel_sframe(struct l2cap_chan *chan, u32 rx_control, struct sk_buff *skb)
-{
-	BT_DBG("chan %p rx_control 0x%8.8x len %d", chan, rx_control, skb->len);
+		if (chan->sdu) {
+			kfree_skb(chan->sdu);
+			chan->sdu = NULL;
+		}
+		chan->sdu_last_frag = NULL;
+		chan->sdu_len = 0;
 
-	if (__is_ctrl_final(chan, rx_control) &&
-			test_bit(CONN_WAIT_F, &chan->conn_state)) {
-		__clear_monitor_timer(chan);
-		if (chan->unacked_frames > 0)
-			__set_retrans_timer(chan);
-		clear_bit(CONN_WAIT_F, &chan->conn_state);
+		if (skb) {
+			BT_DBG("Freeing %p", skb);
+			kfree_skb(skb);
+		}
 	}
 
-	switch (__get_ctrl_super(chan, rx_control)) {
-	case L2CAP_SUPER_RR:
-		l2cap_data_channel_rrframe(chan, rx_control);
-		break;
+	chan->last_acked_seq = control->txseq;
+	chan->expected_tx_seq = __next_seq(chan, control->txseq);
 
-	case L2CAP_SUPER_REJ:
-		l2cap_data_channel_rejframe(chan, rx_control);
-		break;
-
-	case L2CAP_SUPER_SREJ:
-		l2cap_data_channel_srejframe(chan, rx_control);
-		break;
-
-	case L2CAP_SUPER_RNR:
-		l2cap_data_channel_rnrframe(chan, rx_control);
-		break;
-	}
-
-	kfree_skb(skb);
-	return 0;
+	return err;
 }
 
-static int l2cap_ertm_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
+static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
 {
-	u32 control;
-	u16 req_seq;
-	int len, next_tx_seq_offset, req_seq_offset;
+	struct l2cap_ctrl *control = &bt_cb(skb)->control;
+	u16 len;
+	u8 event;
 
 	__unpack_control(chan, skb);
 
-	control = __get_control(chan, skb->data);
-	skb_pull(skb, __ctrl_size(chan));
 	len = skb->len;
 
 	/*
 	 * We can just drop the corrupted I-frame here.
 	 * Receiver will miss it and start proper recovery
-	 * procedures and ask retransmission.
+	 * procedures and ask for retransmission.
 	 */
 	if (l2cap_check_fcs(chan, skb))
 		goto drop;
 
-	if (__is_sar_start(chan, control) && !__is_sframe(chan, control))
+	if (!control->sframe && control->sar == L2CAP_SAR_START)
 		len -= L2CAP_SDULEN_SIZE;
 
 	if (chan->fcs == L2CAP_FCS_CRC16)
@@ -4578,34 +5069,57 @@ static int l2cap_ertm_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
 		goto drop;
 	}
 
-	req_seq = __get_reqseq(chan, control);
-
-	req_seq_offset = __seq_offset(chan, req_seq, chan->expected_ack_seq);
-
-	next_tx_seq_offset = __seq_offset(chan, chan->next_tx_seq,
-						chan->expected_ack_seq);
+	if (!control->sframe) {
+		int err;
 
-	/* check for invalid req-seq */
-	if (req_seq_offset > next_tx_seq_offset) {
-		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
-		goto drop;
-	}
+		BT_DBG("iframe sar %d, reqseq %d, final %d, txseq %d",
+		       control->sar, control->reqseq, control->final,
+		       control->txseq);
 
-	if (!__is_sframe(chan, control)) {
-		if (len < 0) {
-			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		/* Validate F-bit - F=0 always valid, F=1 only
+		 * valid in TX WAIT_F
+		 */
+		if (control->final && chan->tx_state != L2CAP_TX_STATE_WAIT_F)
 			goto drop;
+
+		if (chan->mode != L2CAP_MODE_STREAMING) {
+			event = L2CAP_EV_RECV_IFRAME;
+			err = l2cap_rx(chan, control, skb, event);
+		} else {
+			err = l2cap_stream_rx(chan, control, skb);
 		}
 
-		l2cap_data_channel_iframe(chan, control, skb);
+		if (err)
+			l2cap_send_disconn_req(chan->conn, chan,
+					       ECONNRESET);
 	} else {
+		const u8 rx_func_to_event[4] = {
+			L2CAP_EV_RECV_RR, L2CAP_EV_RECV_REJ,
+			L2CAP_EV_RECV_RNR, L2CAP_EV_RECV_SREJ
+		};
+
+		/* Only I-frames are expected in streaming mode */
+		if (chan->mode == L2CAP_MODE_STREAMING)
+			goto drop;
+
+		BT_DBG("sframe reqseq %d, final %d, poll %d, super %d",
+		       control->reqseq, control->final, control->poll,
+		       control->super);
+
 		if (len != 0) {
 			BT_ERR("%d", len);
 			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
 			goto drop;
 		}
 
-		l2cap_data_channel_sframe(chan, control, skb);
+		/* Validate F and P bits */
+		if (control->final && (control->poll ||
+				       chan->tx_state != L2CAP_TX_STATE_WAIT_F))
+			goto drop;
+
+		event = rx_func_to_event[control->super];
+		if (l2cap_rx(chan, control, skb, event))
+			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
 	}
 
 	return 0;
@@ -4615,19 +5129,27 @@ drop:
 	return 0;
 }
 
-static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk_buff *skb)
+static void l2cap_data_channel(struct l2cap_conn *conn, u16 cid,
+			       struct sk_buff *skb)
 {
 	struct l2cap_chan *chan;
-	u32 control;
-	u16 tx_seq;
-	int len;
 
 	chan = l2cap_get_chan_by_scid(conn, cid);
 	if (!chan) {
-		BT_DBG("unknown cid 0x%4.4x", cid);
-		/* Drop packet and return */
-		kfree_skb(skb);
-		return 0;
+		if (cid == L2CAP_CID_A2MP) {
+			chan = a2mp_channel_create(conn, skb);
+			if (!chan) {
+				kfree_skb(skb);
+				return;
+			}
+
+			l2cap_chan_lock(chan);
+		} else {
+			BT_DBG("unknown cid 0x%4.4x", cid);
+			/* Drop packet and return */
+			kfree_skb(skb);
+			return;
+		}
 	}
 
 	BT_DBG("chan %p, len %d", chan, skb->len);
@@ -4645,49 +5167,13 @@ static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk
 		if (chan->imtu < skb->len)
 			goto drop;
 
-		if (!chan->ops->recv(chan->data, skb))
+		if (!chan->ops->recv(chan, skb))
 			goto done;
 		break;
 
 	case L2CAP_MODE_ERTM:
-		l2cap_ertm_data_rcv(chan, skb);
-
-		goto done;
-
 	case L2CAP_MODE_STREAMING:
-		control = __get_control(chan, skb->data);
-		skb_pull(skb, __ctrl_size(chan));
-		len = skb->len;
-
-		if (l2cap_check_fcs(chan, skb))
-			goto drop;
-
-		if (__is_sar_start(chan, control))
-			len -= L2CAP_SDULEN_SIZE;
-
-		if (chan->fcs == L2CAP_FCS_CRC16)
-			len -= L2CAP_FCS_SIZE;
-
-		if (len > chan->mps || len < 0 || __is_sframe(chan, control))
-			goto drop;
-
-		tx_seq = __get_txseq(chan, control);
-
-		if (chan->expected_tx_seq != tx_seq) {
-			/* Frame(s) missing - must discard partial SDU */
-			kfree_skb(chan->sdu);
-			chan->sdu = NULL;
-			chan->sdu_last_frag = NULL;
-			chan->sdu_len = 0;
-
-			/* TODO: Notify userland of missing data */
-		}
-
-		chan->expected_tx_seq = __next_seq(chan, tx_seq);
-
-		if (l2cap_reassemble_sdu(chan, skb, control) == -EMSGSIZE)
-			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
-
+		l2cap_data_rcv(chan, skb);
 		goto done;
 
 	default:
@@ -4700,11 +5186,10 @@ drop:
 
 done:
 	l2cap_chan_unlock(chan);
-
-	return 0;
 }
 
-static inline int l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, struct sk_buff *skb)
+static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
+				  struct sk_buff *skb)
 {
 	struct l2cap_chan *chan;
 
@@ -4720,17 +5205,15 @@ static inline int l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, str
 	if (chan->imtu < skb->len)
 		goto drop;
 
-	if (!chan->ops->recv(chan->data, skb))
-		return 0;
+	if (!chan->ops->recv(chan, skb))
+		return;
 
 drop:
 	kfree_skb(skb);
-
-	return 0;
 }
 
-static inline int l2cap_att_channel(struct l2cap_conn *conn, u16 cid,
-				    struct sk_buff *skb)
+static void l2cap_att_channel(struct l2cap_conn *conn, u16 cid,
+			      struct sk_buff *skb)
 {
 	struct l2cap_chan *chan;
 
@@ -4746,13 +5229,11 @@ static inline int l2cap_att_channel(struct l2cap_conn *conn, u16 cid,
 	if (chan->imtu < skb->len)
 		goto drop;
 
-	if (!chan->ops->recv(chan->data, skb))
-		return 0;
+	if (!chan->ops->recv(chan, skb))
+		return;
 
 drop:
 	kfree_skb(skb);
-
-	return 0;
 }
 
 static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
@@ -4780,7 +5261,7 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
 
 	case L2CAP_CID_CONN_LESS:
 		psm = get_unaligned((__le16 *) skb->data);
-		skb_pull(skb, 2);
+		skb_pull(skb, L2CAP_PSMLEN_SIZE);
 		l2cap_conless_channel(conn, psm, skb);
 		break;
 
@@ -4974,6 +5455,17 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 			rsp.status = cpu_to_le16(stat);
 			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
 							sizeof(rsp), &rsp);
+
+			if (!test_bit(CONF_REQ_SENT, &chan->conf_state) &&
+			    res == L2CAP_CR_SUCCESS) {
+				char buf[128];
+				set_bit(CONF_REQ_SENT, &chan->conf_state);
+				l2cap_send_cmd(conn, l2cap_get_ident(conn),
+					       L2CAP_CONF_REQ,
+					       l2cap_build_conf_req(chan, buf),
+					       buf);
+				chan->num_conf_req++;
+			}
 		}
 
 		l2cap_chan_unlock(chan);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 3bb1611b9d4..a4bb27e8427 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -27,7 +27,6 @@
 
 /* Bluetooth L2CAP sockets. */
 
-#include <linux/security.h>
 #include <linux/export.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -89,8 +88,8 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 	if (err < 0)
 		goto done;
 
-	if (__le16_to_cpu(la.l2_psm) == 0x0001 ||
-				__le16_to_cpu(la.l2_psm) == 0x0003)
+	if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
+	    __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
 		chan->sec_level = BT_SECURITY_SDP;
 
 	bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
@@ -446,6 +445,22 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
 	return err;
 }
 
+static bool l2cap_valid_mtu(struct l2cap_chan *chan, u16 mtu)
+{
+	switch (chan->scid) {
+	case L2CAP_CID_LE_DATA:
+		if (mtu < L2CAP_LE_MIN_MTU)
+			return false;
+		break;
+
+	default:
+		if (mtu < L2CAP_DEFAULT_MIN_MTU)
+			return false;
+	}
+
+	return true;
+}
+
 static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
@@ -484,6 +499,11 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
 			break;
 		}
 
+		if (!l2cap_valid_mtu(chan, opts.imtu)) {
+			err = -EINVAL;
+			break;
+		}
+
 		chan->mode = opts.mode;
 		switch (chan->mode) {
 		case L2CAP_MODE_BASIC:
@@ -873,9 +893,34 @@ static int l2cap_sock_release(struct socket *sock)
 	return err;
 }
 
-static struct l2cap_chan *l2cap_sock_new_connection_cb(void *data)
+static void l2cap_sock_cleanup_listen(struct sock *parent)
 {
-	struct sock *sk, *parent = data;
+	struct sock *sk;
+
+	BT_DBG("parent %p", parent);
+
+	/* Close not yet accepted channels */
+	while ((sk = bt_accept_dequeue(parent, NULL))) {
+		struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+
+		l2cap_chan_lock(chan);
+		__clear_chan_timer(chan);
+		l2cap_chan_close(chan, ECONNRESET);
+		l2cap_chan_unlock(chan);
+
+		l2cap_sock_kill(sk);
+	}
+}
+
+static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
+{
+	struct sock *sk, *parent = chan->data;
+
+	/* Check for backlog size */
+	if (sk_acceptq_is_full(parent)) {
+		BT_DBG("backlog full %d", parent->sk_ack_backlog);
+		return NULL;
+	}
 
 	sk = l2cap_sock_alloc(sock_net(parent), NULL, BTPROTO_L2CAP,
 								GFP_ATOMIC);
@@ -889,10 +934,10 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(void *data)
 	return l2cap_pi(sk)->chan;
 }
 
-static int l2cap_sock_recv_cb(void *data, struct sk_buff *skb)
+static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 {
 	int err;
-	struct sock *sk = data;
+	struct sock *sk = chan->data;
 	struct l2cap_pinfo *pi = l2cap_pi(sk);
 
 	lock_sock(sk);
@@ -925,16 +970,57 @@ done:
 	return err;
 }
 
-static void l2cap_sock_close_cb(void *data)
+static void l2cap_sock_close_cb(struct l2cap_chan *chan)
 {
-	struct sock *sk = data;
+	struct sock *sk = chan->data;
 
 	l2cap_sock_kill(sk);
 }
 
-static void l2cap_sock_state_change_cb(void *data, int state)
+static void l2cap_sock_teardown_cb(struct l2cap_chan *chan, int err)
 {
-	struct sock *sk = data;
+	struct sock *sk = chan->data;
+	struct sock *parent;
+
+	lock_sock(sk);
+
+	parent = bt_sk(sk)->parent;
+
+	sock_set_flag(sk, SOCK_ZAPPED);
+
+	switch (chan->state) {
+	case BT_OPEN:
+	case BT_BOUND:
+	case BT_CLOSED:
+		break;
+	case BT_LISTEN:
+		l2cap_sock_cleanup_listen(sk);
+		sk->sk_state = BT_CLOSED;
+		chan->state = BT_CLOSED;
+
+		break;
+	default:
+		sk->sk_state = BT_CLOSED;
+		chan->state = BT_CLOSED;
+
+		sk->sk_err = err;
+
+		if (parent) {
+			bt_accept_unlink(sk);
+			parent->sk_data_ready(parent, 0);
+		} else {
+			sk->sk_state_change(sk);
+		}
+
+		break;
+	}
+
+	release_sock(sk);
+}
+
+static void l2cap_sock_state_change_cb(struct l2cap_chan *chan, int state)
+{
+	struct sock *sk = chan->data;
 
 	sk->sk_state = state;
 }
@@ -955,12 +1041,34 @@ static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
 	return skb;
 }
 
+static void l2cap_sock_ready_cb(struct l2cap_chan *chan)
+{
+	struct sock *sk = chan->data;
+	struct sock *parent;
+
+	lock_sock(sk);
+
+	parent = bt_sk(sk)->parent;
+
+	BT_DBG("sk %p, parent %p", sk, parent);
+
+	sk->sk_state = BT_CONNECTED;
+	sk->sk_state_change(sk);
+
+	if (parent)
+		parent->sk_data_ready(parent, 0);
+
+	release_sock(sk);
+}
+
 static struct l2cap_ops l2cap_chan_ops = {
 	.name		= "L2CAP Socket Interface",
 	.new_connection	= l2cap_sock_new_connection_cb,
 	.recv		= l2cap_sock_recv_cb,
 	.close		= l2cap_sock_close_cb,
+	.teardown	= l2cap_sock_teardown_cb,
 	.state_change	= l2cap_sock_state_change_cb,
+	.ready		= l2cap_sock_ready_cb,
 	.alloc_skb	= l2cap_sock_alloc_skb_cb,
 };
 
diff --git a/net/bluetooth/lib.c b/net/bluetooth/lib.c
index 506628876f3..e1c97527e16 100644
--- a/net/bluetooth/lib.c
+++ b/net/bluetooth/lib.c
@@ -26,12 +26,7 @@
 
 #define pr_fmt(fmt) "Bluetooth: " fmt
 
-#include <linux/module.h>
-
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/string.h>
-#include <asm/errno.h>
+#include <linux/export.h>
 
 #include <net/bluetooth/bluetooth.h>
 
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 25d22077607..c72307cc25f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -24,8 +24,6 @@
 
 /* Bluetooth HCI Management interface */
 
-#include <linux/kernel.h>
-#include <linux/uaccess.h>
 #include <linux/module.h>
 #include <asm/unaligned.h>
 
@@ -714,7 +712,8 @@ static struct pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
 }
 
 static void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev,
-				 void (*cb)(struct pending_cmd *cmd, void *data),
+				 void (*cb)(struct pending_cmd *cmd,
+					    void *data),
 				 void *data)
 {
 	struct list_head *p, *n;
@@ -871,7 +870,7 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	}
 
 	if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
-			mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
+	    mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
 		err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 				 MGMT_STATUS_BUSY);
 		goto failed;
@@ -978,7 +977,7 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	}
 
 	if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
-			mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
+	    mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
 		err = cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
 				 MGMT_STATUS_BUSY);
 		goto failed;
@@ -1001,7 +1000,7 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 		scan = 0;
 
 		if (test_bit(HCI_ISCAN, &hdev->flags) &&
-						hdev->discov_timeout > 0)
+		    hdev->discov_timeout > 0)
 			cancel_delayed_work(&hdev->discov_off);
 	}
 
@@ -1056,7 +1055,7 @@ static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
 		bool changed = false;
 
 		if (!!cp->val != test_bit(HCI_LINK_SECURITY,
-							&hdev->dev_flags)) {
+					  &hdev->dev_flags)) {
 			change_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
 			changed = true;
 		}
@@ -1317,7 +1316,7 @@ static bool enable_service_cache(struct hci_dev *hdev)
 }
 
 static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
-								u16 len)
+		       u16 len)
 {
 	struct mgmt_cp_remove_uuid *cp = data;
 	struct pending_cmd *cmd;
@@ -1442,7 +1441,7 @@ unlock:
 }
 
 static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
-								u16 len)
+			  u16 len)
 {
 	struct mgmt_cp_load_link_keys *cp = data;
 	u16 key_count, expected_len;
@@ -1454,13 +1453,13 @@ static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
 					sizeof(struct mgmt_link_key_info);
 	if (expected_len != len) {
 		BT_ERR("load_link_keys: expected %u bytes, got %u bytes",
-							len, expected_len);
+		       len, expected_len);
 		return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
 				  MGMT_STATUS_INVALID_PARAMS);
 	}
 
 	BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys,
-								key_count);
+	       key_count);
 
 	hci_dev_lock(hdev);
 
@@ -1535,10 +1534,10 @@ static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 	if (cp->disconnect) {
 		if (cp->addr.type == BDADDR_BREDR)
 			conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
-							&cp->addr.bdaddr);
+						       &cp->addr.bdaddr);
 		else
 			conn = hci_conn_hash_lookup_ba(hdev, LE_LINK,
-							&cp->addr.bdaddr);
+						       &cp->addr.bdaddr);
 	} else {
 		conn = NULL;
 	}
@@ -1594,7 +1593,8 @@ static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data,
 	}
 
 	if (cp->addr.type == BDADDR_BREDR)
-		conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
+		conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
+					       &cp->addr.bdaddr);
 	else
 		conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
 
@@ -1813,7 +1813,7 @@ static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
 	hdev->io_capability = cp->io_capability;
 
 	BT_DBG("%s IO capability set to 0x%02x", hdev->name,
-							hdev->io_capability);
+	       hdev->io_capability);
 
 	hci_dev_unlock(hdev);
 
@@ -1821,7 +1821,7 @@ static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
 			    0);
 }
 
-static inline struct pending_cmd *find_pairing(struct hci_conn *conn)
+static struct pending_cmd *find_pairing(struct hci_conn *conn)
 {
 	struct hci_dev *hdev = conn->hdev;
 	struct pending_cmd *cmd;
@@ -1873,6 +1873,22 @@ static void pairing_complete_cb(struct hci_conn *conn, u8 status)
 		pairing_complete(cmd, mgmt_status(status));
 }
 
+static void le_connect_complete_cb(struct hci_conn *conn, u8 status)
+{
+	struct pending_cmd *cmd;
+
+	BT_DBG("status %u", status);
+
+	if (!status)
+		return;
+
+	cmd = find_pairing(conn);
+	if (!cmd)
+		BT_DBG("Unable to find a pending command");
+	else
+		pairing_complete(cmd, mgmt_status(status));
+}
+
 static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 		       u16 len)
 {
@@ -1911,8 +1927,15 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 	rp.addr.type = cp->addr.type;
 
 	if (IS_ERR(conn)) {
+		int status;
+
+		if (PTR_ERR(conn) == -EBUSY)
+			status = MGMT_STATUS_BUSY;
+		else
+			status = MGMT_STATUS_CONNECT_FAILED;
+
 		err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
-				   MGMT_STATUS_CONNECT_FAILED, &rp,
+				   status, &rp,
 				   sizeof(rp));
 		goto unlock;
 	}
@@ -1934,6 +1957,8 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 	/* For LE, just connecting isn't a proof that the pairing finished */
 	if (cp->addr.type == BDADDR_BREDR)
 		conn->connect_cfm_cb = pairing_complete_cb;
+	else
+		conn->connect_cfm_cb = le_connect_complete_cb;
 
 	conn->security_cfm_cb = pairing_complete_cb;
 	conn->disconn_cfm_cb = pairing_complete_cb;
@@ -1941,7 +1966,7 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 	cmd->user_data = conn;
 
 	if (conn->state == BT_CONNECTED &&
-				hci_conn_security(conn, sec_level, auth_type))
+	    hci_conn_security(conn, sec_level, auth_type))
 		pairing_complete(cmd, 0);
 
 	err = 0;
@@ -2238,7 +2263,7 @@ unlock:
 }
 
 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
-						void *data, u16 len)
+				  void *data, u16 len)
 {
 	struct mgmt_cp_remove_remote_oob_data *cp = data;
 	u8 status;
@@ -2407,7 +2432,7 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	case DISCOVERY_RESOLVING:
 		e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,
-							NAME_PENDING);
+						     NAME_PENDING);
 		if (!e) {
 			mgmt_pending_remove(cmd);
 			err = cmd_complete(sk, hdev->id,
@@ -2629,7 +2654,7 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
 					sizeof(struct mgmt_ltk_info);
 	if (expected_len != len) {
 		BT_ERR("load_keys: expected %u bytes, got %u bytes",
-							len, expected_len);
+		       len, expected_len);
 		return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
 				  EINVAL);
 	}
@@ -2754,7 +2779,7 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 	}
 
 	if (opcode >= ARRAY_SIZE(mgmt_handlers) ||
-					mgmt_handlers[opcode].func == NULL) {
+	    mgmt_handlers[opcode].func == NULL) {
 		BT_DBG("Unknown op %u", opcode);
 		err = cmd_status(sk, index, opcode,
 				 MGMT_STATUS_UNKNOWN_COMMAND);
@@ -2762,7 +2787,7 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 	}
 
 	if ((hdev && opcode < MGMT_OP_READ_INFO) ||
-			(!hdev && opcode >= MGMT_OP_READ_INFO)) {
+	    (!hdev && opcode >= MGMT_OP_READ_INFO)) {
 		err = cmd_status(sk, index, opcode,
 				 MGMT_STATUS_INVALID_INDEX);
 		goto done;
@@ -2771,7 +2796,7 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 	handler = &mgmt_handlers[opcode];
 
 	if ((handler->var_len && len < handler->data_len) ||
-			(!handler->var_len && len != handler->data_len)) {
+	    (!handler->var_len && len != handler->data_len)) {
 		err = cmd_status(sk, index, opcode,
 				 MGMT_STATUS_INVALID_PARAMS);
 		goto done;
@@ -2955,7 +2980,7 @@ int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
 	bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
 	ev.key.addr.type = BDADDR_BREDR;
 	ev.key.type = key->type;
-	memcpy(ev.key.val, key->val, 16);
+	memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE);
 	ev.key.pin_len = key->pin_len;
 
 	return mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
@@ -3090,7 +3115,7 @@ int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	mgmt_pending_remove(cmd);
 
 	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
-									hdev);
+			     hdev);
 	return err;
 }
 
@@ -3180,7 +3205,7 @@ int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
 }
 
 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
-						u8 link_type, u8 addr_type)
+			      u8 link_type, u8 addr_type)
 {
 	struct mgmt_ev_user_passkey_request ev;
 
@@ -3194,8 +3219,8 @@ int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
 }
 
 static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-					u8 link_type, u8 addr_type, u8 status,
-					u8 opcode)
+				      u8 link_type, u8 addr_type, u8 status,
+				      u8 opcode)
 {
 	struct pending_cmd *cmd;
 	struct mgmt_rp_user_confirm_reply rp;
@@ -3226,7 +3251,8 @@ int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 					 u8 link_type, u8 addr_type, u8 status)
 {
 	return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
-					  status, MGMT_OP_USER_CONFIRM_NEG_REPLY);
+					  status,
+					  MGMT_OP_USER_CONFIRM_NEG_REPLY);
 }
 
 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
@@ -3240,7 +3266,8 @@ int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 					 u8 link_type, u8 addr_type, u8 status)
 {
 	return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
-					  status, MGMT_OP_USER_PASSKEY_NEG_REPLY);
+					  status,
+					  MGMT_OP_USER_PASSKEY_NEG_REPLY);
 }
 
 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 8a602388f1e..c75107ef892 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -26,22 +26,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/init.h>
-#include <linux/wait.h>
-#include <linux/device.h>
 #include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/net.h>
-#include <linux/mutex.h>
 #include <linux/kthread.h>
-#include <linux/slab.h>
-
-#include <net/sock.h>
-#include <linux/uaccess.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -115,14 +101,14 @@ static void rfcomm_session_del(struct rfcomm_session *s);
 #define __get_rpn_stop_bits(line) (((line) >> 2) & 0x1)
 #define __get_rpn_parity(line)    (((line) >> 3) & 0x7)
 
-static inline void rfcomm_schedule(void)
+static void rfcomm_schedule(void)
 {
 	if (!rfcomm_thread)
 		return;
 	wake_up_process(rfcomm_thread);
 }
 
-static inline void rfcomm_session_put(struct rfcomm_session *s)
+static void rfcomm_session_put(struct rfcomm_session *s)
 {
 	if (atomic_dec_and_test(&s->refcnt))
 		rfcomm_session_del(s);
@@ -227,7 +213,7 @@ static int rfcomm_l2sock_create(struct socket **sock)
 	return err;
 }
 
-static inline int rfcomm_check_security(struct rfcomm_dlc *d)
+static int rfcomm_check_security(struct rfcomm_dlc *d)
 {
 	struct sock *sk = d->session->sock->sk;
 	struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;
@@ -1750,7 +1736,7 @@ static void rfcomm_process_connect(struct rfcomm_session *s)
 /* Send data queued for the DLC.
  * Return number of frames left in the queue.
  */
-static inline int rfcomm_process_tx(struct rfcomm_dlc *d)
+static int rfcomm_process_tx(struct rfcomm_dlc *d)
 {
 	struct sk_buff *skb;
 	int err;
@@ -1798,7 +1784,7 @@ static inline int rfcomm_process_tx(struct rfcomm_dlc *d)
 	return skb_queue_len(&d->tx_queue);
 }
 
-static inline void rfcomm_process_dlcs(struct rfcomm_session *s)
+static void rfcomm_process_dlcs(struct rfcomm_session *s)
 {
 	struct rfcomm_dlc *d;
 	struct list_head *p, *n;
@@ -1858,7 +1844,7 @@ static inline void rfcomm_process_dlcs(struct rfcomm_session *s)
 	}
 }
 
-static inline void rfcomm_process_rx(struct rfcomm_session *s)
+static void rfcomm_process_rx(struct rfcomm_session *s)
 {
 	struct socket *sock = s->sock;
 	struct sock *sk = sock->sk;
@@ -1883,7 +1869,7 @@ static inline void rfcomm_process_rx(struct rfcomm_session *s)
 	}
 }
 
-static inline void rfcomm_accept_connection(struct rfcomm_session *s)
+static void rfcomm_accept_connection(struct rfcomm_session *s)
 {
 	struct socket *sock = s->sock, *nsock;
 	int err;
@@ -1917,7 +1903,7 @@ static inline void rfcomm_accept_connection(struct rfcomm_session *s)
 		sock_release(nsock);
 }
 
-static inline void rfcomm_check_connection(struct rfcomm_session *s)
+static void rfcomm_check_connection(struct rfcomm_session *s)
 {
 	struct sock *sk = s->sock->sk;
 
@@ -1941,7 +1927,7 @@ static inline void rfcomm_check_connection(struct rfcomm_session *s)
 	}
 }
 
-static inline void rfcomm_process_sessions(void)
+static void rfcomm_process_sessions(void)
 {
 	struct list_head *p, *n;
 
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index e8707debb86..7e1e59645c0 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -25,27 +25,8 @@
  * RFCOMM sockets.
  */
 
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/socket.h>
-#include <linux/skbuff.h>
-#include <linux/list.h>
-#include <linux/device.h>
+#include <linux/export.h>
 #include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/security.h>
-#include <net/sock.h>
-
-#include <linux/uaccess.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index d1820ff14ae..cb960773c00 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -31,11 +31,6 @@
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
 
-#include <linux/capability.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/workqueue.h>
-
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/rfcomm.h>
@@ -132,7 +127,7 @@ static struct rfcomm_dev *__rfcomm_dev_get(int id)
 	return NULL;
 }
 
-static inline struct rfcomm_dev *rfcomm_dev_get(int id)
+static struct rfcomm_dev *rfcomm_dev_get(int id)
 {
 	struct rfcomm_dev *dev;
 
@@ -345,7 +340,7 @@ static void rfcomm_wfree(struct sk_buff *skb)
 	tty_port_put(&dev->port);
 }
 
-static inline void rfcomm_set_owner_w(struct sk_buff *skb, struct rfcomm_dev *dev)
+static void rfcomm_set_owner_w(struct sk_buff *skb, struct rfcomm_dev *dev)
 {
 	tty_port_get(&dev->port);
 	atomic_add(skb->truesize, &dev->wmem_alloc);
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index cbdd313659a..40bbe25dcff 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -25,26 +25,8 @@
 /* Bluetooth SCO sockets. */
 
 #include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/socket.h>
-#include <linux/skbuff.h>
-#include <linux/device.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
-#include <linux/list.h>
-#include <linux/security.h>
-#include <net/sock.h>
-
-#include <linux/uaccess.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -123,7 +105,7 @@ static struct sco_conn *sco_conn_add(struct hci_conn *hcon)
 	return conn;
 }
 
-static inline struct sock *sco_chan_get(struct sco_conn *conn)
+static struct sock *sco_chan_get(struct sco_conn *conn)
 {
 	struct sock *sk = NULL;
 	sco_conn_lock(conn);
@@ -157,7 +139,8 @@ static int sco_conn_del(struct hci_conn *hcon, int err)
 	return 0;
 }
 
-static inline int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
+static int sco_chan_add(struct sco_conn *conn, struct sock *sk,
+			struct sock *parent)
 {
 	int err = 0;
 
@@ -228,7 +211,7 @@ done:
 	return err;
 }
 
-static inline int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
+static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
 {
 	struct sco_conn *conn = sco_pi(sk)->conn;
 	struct sk_buff *skb;
@@ -254,7 +237,7 @@ static inline int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
 	return len;
 }
 
-static inline void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb)
+static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb)
 {
 	struct sock *sk = sco_chan_get(conn);
 
@@ -523,7 +506,7 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen
 		goto done;
 
 	err = bt_sock_wait_state(sk, BT_CONNECTED,
-			sock_sndtimeo(sk, flags & O_NONBLOCK));
+				 sock_sndtimeo(sk, flags & O_NONBLOCK));
 
 done:
 	release_sock(sk);
@@ -788,7 +771,7 @@ static int sco_sock_shutdown(struct socket *sock, int how)
 
 		if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
 			err = bt_sock_wait_state(sk, BT_CLOSED,
-							sk->sk_lingertime);
+						 sk->sk_lingertime);
 	}
 	release_sock(sk);
 	return err;
@@ -878,7 +861,7 @@ static void sco_conn_ready(struct sco_conn *conn)
 		bh_lock_sock(parent);
 
 		sk = sco_sock_alloc(sock_net(parent), NULL,
-				BTPROTO_SCO, GFP_ATOMIC);
+				    BTPROTO_SCO, GFP_ATOMIC);
 		if (!sk) {
 			bh_unlock_sock(parent);
 			goto done;
@@ -907,7 +890,7 @@ done:
 /* ----- SCO interface with lower layer (HCI) ----- */
 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
 {
-	register struct sock *sk;
+	struct sock *sk;
 	struct hlist_node *node;
 	int lm = 0;
 
@@ -920,7 +903,7 @@ int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
 			continue;
 
 		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) ||
-				!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+		    !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
 			lm |= HCI_LM_ACCEPT;
 			break;
 		}
@@ -981,7 +964,7 @@ static int sco_debugfs_show(struct seq_file *f, void *p)
 
 	sk_for_each(sk, node, &sco_sk_list.head) {
 		seq_printf(f, "%s %s %d\n", batostr(&bt_sk(sk)->src),
-				batostr(&bt_sk(sk)->dst), sk->sk_state);
+			   batostr(&bt_sk(sk)->dst), sk->sk_state);
 	}
 
 	read_unlock(&sco_sk_list.lock);
@@ -1044,8 +1027,8 @@ int __init sco_init(void)
 	}
 
 	if (bt_debugfs) {
-		sco_debugfs = debugfs_create_file("sco", 0444,
-					bt_debugfs, NULL, &sco_debugfs_fops);
+		sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs,
+						  NULL, &sco_debugfs_fops);
 		if (!sco_debugfs)
 			BT_ERR("Failed to create SCO debug file");
 	}
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 6fc7c4708f3..16ef0dc85a0 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -20,14 +20,15 @@
    SOFTWARE IS DISCLAIMED.
 */
 
+#include <linux/crypto.h>
+#include <linux/scatterlist.h>
+#include <crypto/b128ops.h>
+
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/mgmt.h>
 #include <net/bluetooth/smp.h>
-#include <linux/crypto.h>
-#include <linux/scatterlist.h>
-#include <crypto/b128ops.h>
 
 #define SMP_TIMEOUT	msecs_to_jiffies(30000)
 
@@ -648,7 +649,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
 
 	auth |= (req->auth_req | rsp->auth_req) & SMP_AUTH_MITM;
 
-	ret = tk_request(conn, 0, auth, rsp->io_capability, req->io_capability);
+	ret = tk_request(conn, 0, auth, req->io_capability, rsp->io_capability);
 	if (ret)
 		return SMP_UNSPECIFIED;
 
@@ -703,7 +704,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
 	return 0;
 }
 
-static u8 smp_ltk_encrypt(struct l2cap_conn *conn)
+static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level)
 {
 	struct smp_ltk *key;
 	struct hci_conn *hcon = conn->hcon;
@@ -712,6 +713,9 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn)
 	if (!key)
 		return 0;
 
+	if (sec_level > BT_SECURITY_MEDIUM && !key->authenticated)
+		return 0;
+
 	if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags))
 		return 1;
 
@@ -732,7 +736,7 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
 
 	hcon->pending_sec_level = authreq_to_seclevel(rp->auth_req);
 
-	if (smp_ltk_encrypt(conn))
+	if (smp_ltk_encrypt(conn, hcon->pending_sec_level))
 		return 0;
 
 	if (test_and_set_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags))
@@ -771,7 +775,7 @@ int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level)
 		return 1;
 
 	if (hcon->link_mode & HCI_LM_MASTER)
-		if (smp_ltk_encrypt(conn))
+		if (smp_ltk_encrypt(conn, sec_level))
 			goto done;
 
 	if (test_and_set_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags))
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 498c94e3442..85ac364f463 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2097,6 +2097,9 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	int i, ret;
 
+	if (!ieee80211_sdata_running(sdata))
+		return -ENETDOWN;
+
 	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
 		ret = drv_set_bitrate_mask(local, sdata, mask);
 		if (ret)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index d7134c17033..079038d26a1 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1337,6 +1337,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	if (WARN_ON(!ifmgd->associated))
 		return;
 
+	ieee80211_stop_poll(sdata);
+
 	memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
 
 	ifmgd->associated = NULL;
@@ -2592,8 +2594,6 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u8 frame_buf[DEAUTH_DISASSOC_LEN];
 
-	ieee80211_stop_poll(sdata);
-
 	ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason,
 			       false, frame_buf);
 	mutex_unlock(&ifmgd->mtx);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 3bb24a121c9..a470e1123a5 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -271,6 +271,9 @@ struct sta_ampdu_mlme {
  * @plink_timer: peer link watch timer
  * @plink_timer_was_running: used by suspend/resume to restore timers
  * @t_offset: timing offset relative to this host
+ * @t_offset_setpoint: reference timing offset of this sta to be used when
+ * 	calculating clockdrift
+ * @ch_type: peer's channel type
  * @debugfs: debug filesystem info
  * @dead: set to true when sta is unlinked
  * @uploaded: set to true when sta is uploaded to the driver
@@ -278,6 +281,8 @@ struct sta_ampdu_mlme {
  * @sta: station information we share with the driver
  * @sta_state: duplicates information about station state (for debug)
  * @beacon_loss_count: number of times beacon loss has triggered
+ * @supports_40mhz: tracks whether the station advertised 40 MHz support
+ *	as we overwrite its HT parameters with the currently used value
  */
 struct sta_info {
 	/* General information, mostly static */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 15f347477a9..baf5704740e 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1389,7 +1389,7 @@ static void reg_set_request_processed(void)
 	spin_unlock(&reg_requests_lock);
 
 	if (last_request->initiator == NL80211_REGDOM_SET_BY_USER)
-		cancel_delayed_work_sync(&reg_timeout);
+		cancel_delayed_work(&reg_timeout);
 
 	if (need_more_processing)
 		schedule_work(&reg_work);
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 8f2d68fc3a4..316cfd00914 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -804,7 +804,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 	     ntype == NL80211_IFTYPE_P2P_CLIENT))
 		return -EBUSY;
 
-	if (ntype != otype) {
+	if (ntype != otype && netif_running(dev)) {
 		err = cfg80211_can_change_interface(rdev, dev->ieee80211_ptr,
 						    ntype);
 		if (err)