Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Highlights (1721 non-merge commits, this has to be a record of some
  sort):

   1) Add 'random' mode to team driver, from Jiri Pirko and Eric
      Dumazet.

   2) Make it so that any driver that supports configuration of multiple
      MAC addresses can provide the forwarding database add and del
      calls by providing a default implementation and hooking that up if
      the driver doesn't have an explicit set of handlers.  From Vlad
      Yasevich.

   3) Support GSO segmentation over tunnels and other encapsulating
      devices such as VXLAN, from Pravin B Shelar.

   4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.

   5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
      Dukkipati.

   6) In the PHY layer, allow supporting wake-on-lan in situations where
      the PHY registers have to be written for it to be configured.

      Use it to support wake-on-lan in mv643xx_eth.

      From Michael Stapelberg.

   7) Significantly improve firewire IPV6 support, from YOSHIFUJI
      Hideaki.

   8) Allow multiple packets to be sent in a single transmission using
      network coding in batman-adv, from Martin Hundebøll.

   9) Add support for T5 cxgb4 chips, from Santosh Rastapur.

  10) Generalize the VXLAN forwarding tables so that there is more
      flexibility in configurating various aspects of the endpoints.
      From David Stevens.

  11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
      from Dmitry Kravkov.

  12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
      Neira Ayuso.

  13) Start adding networking selftests.

  14) In situations of overload on the same AF_PACKET fanout socket, or
      per-cpu packet receive queue, minimize drop by distributing the
      load to other cpus/fanouts.  From Willem de Bruijn and Eric
      Dumazet.

  15) Add support for new payload offset BPF instruction, from Daniel
      Borkmann.

  16) Convert several drivers over to mdoule_platform_driver(), from
      Sachin Kamat.

  17) Provide a minimal BPF JIT image disassembler userspace tool, from
      Daniel Borkmann.

  18) Rewrite F-RTO implementation in TCP to match the final
      specification of it in RFC4138 and RFC5682.  From Yuchung Cheng.

  19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
      you like netlink, so I implemented netlink dumping of netlink
      sockets.") From Andrey Vagin.

  20) Remove ugly passing of rtnetlink attributes into rtnl_doit
      functions, from Thomas Graf.

  21) Allow userspace to be able to see if a configuration change occurs
      in the middle of an address or device list dump, from Nicolas
      Dichtel.

  22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
      Frederic Sowa.

  23) Increase accuracy of packet length used by packet scheduler, from
      Jason Wang.

  24) Beginning set of changes to make ipv4/ipv6 fragment handling more
      scalable and less susceptible to overload and locking contention,
      from Jesper Dangaard Brouer.

  25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
      instead.  From Hong Zhiguo.

  26) Optimize route usage in IPVS by avoiding reference counting where
      possible, from Julian Anastasov.

  27) Convert IPVS schedulers to RCU, also from Julian Anastasov.

  28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
      Eitzenberger.

  29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
      nfnetlink_log, and nfnetlink_queue.  From Gao feng.

  30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.

  31) Support several new r8169 chips, from Hayes Wang.

  32) Support tokenized interface identifiers in ipv6, from Daniel
      Borkmann.

  33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.

  34) Add 802.1ad vlan offload support, from Patrick McHardy.

  35) Support mmap() based netlink communication, also from Patrick
      McHardy.

  36) Support HW timestamping in mlx4 driver, from Amir Vadai.

  37) Rationalize AF_PACKET packet timestamping when transmitting, from
      Willem de Bruijn and Daniel Borkmann.

  38) Bring parity to what's provided by /proc/net/packet socket dumping
      and the info provided by netlink socket dumping of AF_PACKET
      sockets.  From Nicolas Dichtel.

  39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
      Poirier"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  filter: fix va_list build error
  af_unix: fix a fatal race with bit fields
  bnx2x: Prevent memory leak when cnic is absent
  bnx2x: correct reading of speed capabilities
  net: sctp: attribute printl with __printf for gcc fmt checks
  netlink: kconfig: move mmap i/o into netlink kconfig
  netpoll: convert mutex into a semaphore
  netlink: Fix skb ref counting.
  net_sched: act_ipt forward compat with xtables
  mlx4_en: fix a build error on 32bit arches
  Revert "bnx2x: allow nvram test to run when device is down"
  bridge: avoid OOPS if root port not found
  drivers: net: cpsw: fix kernel warn on cpsw irq enable
  sh_eth: use random MAC address if no valid one supplied
  3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
  tg3: fix to append hardware time stamping flags
  unix/stream: fix peeking with an offset larger than data in queue
  unix/dgram: fix peeking with an offset larger than data in queue
  unix/dgram: peek beyond 0-sized skbs
  openvswitch: Remove unneeded ovs_netdev_get_ifindex()
  ...

1 files changed, 186 insertions, 595 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 477726a63512..b93cd2eb5d58 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -48,13 +48,13 @@ static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
 	}
 
 	clear_bit(HCI_INQUIRY, &hdev->flags);
+	smp_mb__after_clear_bit(); /* wake_up_bit advises about this barrier */
+	wake_up_bit(&hdev->flags, HCI_INQUIRY);
 
 	hci_dev_lock(hdev);
 	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
 	hci_dev_unlock(hdev);
 
-	hci_req_complete(hdev, HCI_OP_INQUIRY_CANCEL, status);
-
 	hci_conn_check_pending(hdev);
 }
 
@@ -183,8 +183,6 @@ static void hci_cc_write_def_link_policy(struct hci_dev *hdev,
 
 	if (!status)
 		hdev->link_policy = get_unaligned_le16(sent);
-
-	hci_req_complete(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, status);
 }
 
 static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
@@ -195,11 +193,8 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
 
 	clear_bit(HCI_RESET, &hdev->flags);
 
-	hci_req_complete(hdev, HCI_OP_RESET, status);
-
 	/* Reset all non-persistent flags */
-	hdev->dev_flags &= ~(BIT(HCI_LE_SCAN) | BIT(HCI_PENDING_CLASS) |
-			     BIT(HCI_PERIODIC_INQ));
+	hdev->dev_flags &= ~HCI_PERSISTENT_MASK;
 
 	hdev->discovery.state = DISCOVERY_STOPPED;
 	hdev->inq_tx_power = HCI_TX_POWER_INVALID;
@@ -228,11 +223,6 @@ static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
 		memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
 
 	hci_dev_unlock(hdev);
-
-	if (!status && !test_bit(HCI_INIT, &hdev->flags))
-		hci_update_ad(hdev);
-
-	hci_req_complete(hdev, HCI_OP_WRITE_LOCAL_NAME, status);
 }
 
 static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
@@ -270,8 +260,6 @@ static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
 
 	if (test_bit(HCI_MGMT, &hdev->dev_flags))
 		mgmt_auth_enable_complete(hdev, status);
-
-	hci_req_complete(hdev, HCI_OP_WRITE_AUTH_ENABLE, status);
 }
 
 static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
@@ -293,8 +281,6 @@ static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
 		else
 			clear_bit(HCI_ENCRYPT, &hdev->flags);
 	}
-
-	hci_req_complete(hdev, HCI_OP_WRITE_ENCRYPT_MODE, status);
 }
 
 static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
@@ -343,7 +329,6 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
 
 done:
 	hci_dev_unlock(hdev);
-	hci_req_complete(hdev, HCI_OP_WRITE_SCAN_ENABLE, status);
 }
 
 static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
@@ -435,15 +420,6 @@ static void hci_cc_write_voice_setting(struct hci_dev *hdev,
 		hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 }
 
-static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	__u8 status = *((__u8 *) skb->data);
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	hci_req_complete(hdev, HCI_OP_HOST_BUFFER_SIZE, status);
-}
-
 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
@@ -457,9 +433,9 @@ static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 
 	if (!status) {
 		if (sent->mode)
-			hdev->host_features[0] |= LMP_HOST_SSP;
+			hdev->features[1][0] |= LMP_HOST_SSP;
 		else
-			hdev->host_features[0] &= ~LMP_HOST_SSP;
+			hdev->features[1][0] &= ~LMP_HOST_SSP;
 	}
 
 	if (test_bit(HCI_MGMT, &hdev->dev_flags))
@@ -472,211 +448,6 @@ static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 	}
 }
 
-static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
-{
-	if (lmp_ext_inq_capable(hdev))
-		return 2;
-
-	if (lmp_inq_rssi_capable(hdev))
-		return 1;
-
-	if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 &&
-	    hdev->lmp_subver == 0x0757)
-		return 1;
-
-	if (hdev->manufacturer == 15) {
-		if (hdev->hci_rev == 0x03 && hdev->lmp_subver == 0x6963)
-			return 1;
-		if (hdev->hci_rev == 0x09 && hdev->lmp_subver == 0x6963)
-			return 1;
-		if (hdev->hci_rev == 0x00 && hdev->lmp_subver == 0x6965)
-			return 1;
-	}
-
-	if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 &&
-	    hdev->lmp_subver == 0x1805)
-		return 1;
-
-	return 0;
-}
-
-static void hci_setup_inquiry_mode(struct hci_dev *hdev)
-{
-	u8 mode;
-
-	mode = hci_get_inquiry_mode(hdev);
-
-	hci_send_cmd(hdev, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode);
-}
-
-static void hci_setup_event_mask(struct hci_dev *hdev)
-{
-	/* The second byte is 0xff instead of 0x9f (two reserved bits
-	 * disabled) since a Broadcom 1.2 dongle doesn't respond to the
-	 * command otherwise */
-	u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 };
-
-	/* CSR 1.1 dongles does not accept any bitfield so don't try to set
-	 * any event mask for pre 1.2 devices */
-	if (hdev->hci_ver < BLUETOOTH_VER_1_2)
-		return;
-
-	if (lmp_bredr_capable(hdev)) {
-		events[4] |= 0x01; /* Flow Specification Complete */
-		events[4] |= 0x02; /* Inquiry Result with RSSI */
-		events[4] |= 0x04; /* Read Remote Extended Features Complete */
-		events[5] |= 0x08; /* Synchronous Connection Complete */
-		events[5] |= 0x10; /* Synchronous Connection Changed */
-	}
-
-	if (lmp_inq_rssi_capable(hdev))
-		events[4] |= 0x02; /* Inquiry Result with RSSI */
-
-	if (lmp_sniffsubr_capable(hdev))
-		events[5] |= 0x20; /* Sniff Subrating */
-
-	if (lmp_pause_enc_capable(hdev))
-		events[5] |= 0x80; /* Encryption Key Refresh Complete */
-
-	if (lmp_ext_inq_capable(hdev))
-		events[5] |= 0x40; /* Extended Inquiry Result */
-
-	if (lmp_no_flush_capable(hdev))
-		events[7] |= 0x01; /* Enhanced Flush Complete */
-
-	if (lmp_lsto_capable(hdev))
-		events[6] |= 0x80; /* Link Supervision Timeout Changed */
-
-	if (lmp_ssp_capable(hdev)) {
-		events[6] |= 0x01;	/* IO Capability Request */
-		events[6] |= 0x02;	/* IO Capability Response */
-		events[6] |= 0x04;	/* User Confirmation Request */
-		events[6] |= 0x08;	/* User Passkey Request */
-		events[6] |= 0x10;	/* Remote OOB Data Request */
-		events[6] |= 0x20;	/* Simple Pairing Complete */
-		events[7] |= 0x04;	/* User Passkey Notification */
-		events[7] |= 0x08;	/* Keypress Notification */
-		events[7] |= 0x10;	/* Remote Host Supported
-					 * Features Notification */
-	}
-
-	if (lmp_le_capable(hdev))
-		events[7] |= 0x20;	/* LE Meta-Event */
-
-	hci_send_cmd(hdev, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
-
-	if (lmp_le_capable(hdev)) {
-		memset(events, 0, sizeof(events));
-		events[0] = 0x1f;
-		hci_send_cmd(hdev, HCI_OP_LE_SET_EVENT_MASK,
-			     sizeof(events), events);
-	}
-}
-
-static void bredr_setup(struct hci_dev *hdev)
-{
-	struct hci_cp_delete_stored_link_key cp;
-	__le16 param;
-	__u8 flt_type;
-
-	/* Read Buffer Size (ACL mtu, max pkt, etc.) */
-	hci_send_cmd(hdev, HCI_OP_READ_BUFFER_SIZE, 0, NULL);
-
-	/* Read Class of Device */
-	hci_send_cmd(hdev, HCI_OP_READ_CLASS_OF_DEV, 0, NULL);
-
-	/* Read Local Name */
-	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL);
-
-	/* Read Voice Setting */
-	hci_send_cmd(hdev, HCI_OP_READ_VOICE_SETTING, 0, NULL);
-
-	/* Clear Event Filters */
-	flt_type = HCI_FLT_CLEAR_ALL;
-	hci_send_cmd(hdev, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
-
-	/* Connection accept timeout ~20 secs */
-	param = __constant_cpu_to_le16(0x7d00);
-	hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
-
-	bacpy(&cp.bdaddr, BDADDR_ANY);
-	cp.delete_all = 1;
-	hci_send_cmd(hdev, HCI_OP_DELETE_STORED_LINK_KEY, sizeof(cp), &cp);
-}
-
-static void le_setup(struct hci_dev *hdev)
-{
-	/* Read LE Buffer Size */
-	hci_send_cmd(hdev, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL);
-
-	/* Read LE Local Supported Features */
-	hci_send_cmd(hdev, HCI_OP_LE_READ_LOCAL_FEATURES, 0, NULL);
-
-	/* Read LE Advertising Channel TX Power */
-	hci_send_cmd(hdev, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL);
-
-	/* Read LE White List Size */
-	hci_send_cmd(hdev, HCI_OP_LE_READ_WHITE_LIST_SIZE, 0, NULL);
-
-	/* Read LE Supported States */
-	hci_send_cmd(hdev, HCI_OP_LE_READ_SUPPORTED_STATES, 0, NULL);
-}
-
-static void hci_setup(struct hci_dev *hdev)
-{
-	if (hdev->dev_type != HCI_BREDR)
-		return;
-
-	/* Read BD Address */
-	hci_send_cmd(hdev, HCI_OP_READ_BD_ADDR, 0, NULL);
-
-	if (lmp_bredr_capable(hdev))
-		bredr_setup(hdev);
-
-	if (lmp_le_capable(hdev))
-		le_setup(hdev);
-
-	hci_setup_event_mask(hdev);
-
-	if (hdev->hci_ver > BLUETOOTH_VER_1_1)
-		hci_send_cmd(hdev, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
-
-	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,
-				     sizeof(mode), &mode);
-		} else {
-			struct hci_cp_write_eir cp;
-
-			memset(hdev->eir, 0, sizeof(hdev->eir));
-			memset(&cp, 0, sizeof(cp));
-
-			hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
-		}
-	}
-
-	if (lmp_inq_rssi_capable(hdev))
-		hci_setup_inquiry_mode(hdev);
-
-	if (lmp_inq_tx_pwr_capable(hdev))
-		hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
-
-	if (lmp_ext_feat_capable(hdev)) {
-		struct hci_cp_read_local_ext_features cp;
-
-		cp.page = 0x01;
-		hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp),
-			     &cp);
-	}
-
-	if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) {
-		u8 enable = 1;
-		hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(enable),
-			     &enable);
-	}
-}
-
 static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_rp_read_local_version *rp = (void *) skb->data;
@@ -684,7 +455,7 @@ static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
 	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
 
 	if (rp->status)
-		goto done;
+		return;
 
 	hdev->hci_ver = rp->hci_ver;
 	hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
@@ -694,30 +465,6 @@ static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s manufacturer 0x%4.4x hci ver %d:%d", hdev->name,
 	       hdev->manufacturer, hdev->hci_ver, hdev->hci_rev);
-
-	if (test_bit(HCI_INIT, &hdev->flags))
-		hci_setup(hdev);
-
-done:
-	hci_req_complete(hdev, HCI_OP_READ_LOCAL_VERSION, rp->status);
-}
-
-static void hci_setup_link_policy(struct hci_dev *hdev)
-{
-	struct hci_cp_write_def_link_policy cp;
-	u16 link_policy = 0;
-
-	if (lmp_rswitch_capable(hdev))
-		link_policy |= HCI_LP_RSWITCH;
-	if (lmp_hold_capable(hdev))
-		link_policy |= HCI_LP_HOLD;
-	if (lmp_sniff_capable(hdev))
-		link_policy |= HCI_LP_SNIFF;
-	if (lmp_park_capable(hdev))
-		link_policy |= HCI_LP_PARK;
-
-	cp.policy = cpu_to_le16(link_policy);
-	hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, sizeof(cp), &cp);
 }
 
 static void hci_cc_read_local_commands(struct hci_dev *hdev,
@@ -727,16 +474,8 @@ static void hci_cc_read_local_commands(struct hci_dev *hdev,
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
 
-	if (rp->status)
-		goto done;
-
-	memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
-
-	if (test_bit(HCI_INIT, &hdev->flags) && (hdev->commands[5] & 0x10))
-		hci_setup_link_policy(hdev);
-
-done:
-	hci_req_complete(hdev, HCI_OP_READ_LOCAL_COMMANDS, rp->status);
+	if (!rp->status)
+		memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
 }
 
 static void hci_cc_read_local_features(struct hci_dev *hdev,
@@ -754,18 +493,18 @@ static void hci_cc_read_local_features(struct hci_dev *hdev,
 	/* Adjust default settings according to features
 	 * supported by device. */
 
-	if (hdev->features[0] & LMP_3SLOT)
+	if (hdev->features[0][0] & LMP_3SLOT)
 		hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
 
-	if (hdev->features[0] & LMP_5SLOT)
+	if (hdev->features[0][0] & LMP_5SLOT)
 		hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
 
-	if (hdev->features[1] & LMP_HV2) {
+	if (hdev->features[0][1] & LMP_HV2) {
 		hdev->pkt_type  |= (HCI_HV2);
 		hdev->esco_type |= (ESCO_HV2);
 	}
 
-	if (hdev->features[1] & LMP_HV3) {
+	if (hdev->features[0][1] & LMP_HV3) {
 		hdev->pkt_type  |= (HCI_HV3);
 		hdev->esco_type |= (ESCO_HV3);
 	}
@@ -773,42 +512,26 @@ static void hci_cc_read_local_features(struct hci_dev *hdev,
 	if (lmp_esco_capable(hdev))
 		hdev->esco_type |= (ESCO_EV3);
 
-	if (hdev->features[4] & LMP_EV4)
+	if (hdev->features[0][4] & LMP_EV4)
 		hdev->esco_type |= (ESCO_EV4);
 
-	if (hdev->features[4] & LMP_EV5)
+	if (hdev->features[0][4] & LMP_EV5)
 		hdev->esco_type |= (ESCO_EV5);
 
-	if (hdev->features[5] & LMP_EDR_ESCO_2M)
+	if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
 		hdev->esco_type |= (ESCO_2EV3);
 
-	if (hdev->features[5] & LMP_EDR_ESCO_3M)
+	if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
 		hdev->esco_type |= (ESCO_3EV3);
 
-	if (hdev->features[5] & LMP_EDR_3S_ESCO)
+	if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
 		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]);
-}
-
-static void hci_set_le_support(struct hci_dev *hdev)
-{
-	struct hci_cp_write_le_host_supported cp;
-
-	memset(&cp, 0, sizeof(cp));
-
-	if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
-		cp.le = 1;
-		cp.simul = lmp_le_br_capable(hdev);
-	}
-
-	if (cp.le != lmp_host_le_capable(hdev))
-		hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp),
-			     &cp);
+	       hdev->features[0][0], hdev->features[0][1],
+	       hdev->features[0][2], hdev->features[0][3],
+	       hdev->features[0][4], hdev->features[0][5],
+	       hdev->features[0][6], hdev->features[0][7]);
 }
 
 static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
@@ -819,22 +542,12 @@ static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
 	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
 
 	if (rp->status)
-		goto done;
-
-	switch (rp->page) {
-	case 0:
-		memcpy(hdev->features, rp->features, 8);
-		break;
-	case 1:
-		memcpy(hdev->host_features, rp->features, 8);
-		break;
-	}
+		return;
 
-	if (test_bit(HCI_INIT, &hdev->flags) && lmp_le_capable(hdev))
-		hci_set_le_support(hdev);
+	hdev->max_page = rp->max_page;
 
-done:
-	hci_req_complete(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, rp->status);
+	if (rp->page < HCI_MAX_PAGES)
+		memcpy(hdev->features[rp->page], rp->features, 8);
 }
 
 static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
@@ -844,12 +557,8 @@ static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
 
-	if (rp->status)
-		return;
-
-	hdev->flow_ctl_mode = rp->mode;
-
-	hci_req_complete(hdev, HCI_OP_READ_FLOW_CONTROL_MODE, rp->status);
+	if (!rp->status)
+		hdev->flow_ctl_mode = rp->mode;
 }
 
 static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
@@ -886,8 +595,65 @@ static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
 
 	if (!rp->status)
 		bacpy(&hdev->bdaddr, &rp->bdaddr);
+}
+
+static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
+					   struct sk_buff *skb)
+{
+	struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
 
-	hci_req_complete(hdev, HCI_OP_READ_BD_ADDR, rp->status);
+	if (test_bit(HCI_INIT, &hdev->flags) && !rp->status) {
+		hdev->page_scan_interval = __le16_to_cpu(rp->interval);
+		hdev->page_scan_window = __le16_to_cpu(rp->window);
+	}
+}
+
+static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
+					    struct sk_buff *skb)
+{
+	u8 status = *((u8 *) skb->data);
+	struct hci_cp_write_page_scan_activity *sent;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+	if (status)
+		return;
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
+	if (!sent)
+		return;
+
+	hdev->page_scan_interval = __le16_to_cpu(sent->interval);
+	hdev->page_scan_window = __le16_to_cpu(sent->window);
+}
+
+static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
+					   struct sk_buff *skb)
+{
+	struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+	if (test_bit(HCI_INIT, &hdev->flags) && !rp->status)
+		hdev->page_scan_type = rp->type;
+}
+
+static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
+					struct sk_buff *skb)
+{
+	u8 status = *((u8 *) skb->data);
+	u8 *type;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+	if (status)
+		return;
+
+	type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
+	if (type)
+		hdev->page_scan_type = *type;
 }
 
 static void hci_cc_read_data_block_size(struct hci_dev *hdev,
@@ -908,17 +674,6 @@ static void hci_cc_read_data_block_size(struct hci_dev *hdev,
 
 	BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
 	       hdev->block_cnt, hdev->block_len);
-
-	hci_req_complete(hdev, HCI_OP_READ_DATA_BLOCK_SIZE, rp->status);
-}
-
-static void hci_cc_write_ca_timeout(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	__u8 status = *((__u8 *) skb->data);
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	hci_req_complete(hdev, HCI_OP_WRITE_CA_TIMEOUT, status);
 }
 
 static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
@@ -942,8 +697,6 @@ static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
 	hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
 	hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
 
-	hci_req_complete(hdev, HCI_OP_READ_LOCAL_AMP_INFO, rp->status);
-
 a2mp_rsp:
 	a2mp_send_getinfo_rsp(hdev);
 }
@@ -985,35 +738,6 @@ a2mp_rsp:
 	a2mp_send_create_phy_link_req(hdev, rp->status);
 }
 
-static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
-					  struct sk_buff *skb)
-{
-	__u8 status = *((__u8 *) skb->data);
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	hci_req_complete(hdev, HCI_OP_DELETE_STORED_LINK_KEY, status);
-}
-
-static void hci_cc_set_event_mask(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	__u8 status = *((__u8 *) skb->data);
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	hci_req_complete(hdev, HCI_OP_SET_EVENT_MASK, status);
-}
-
-static void hci_cc_write_inquiry_mode(struct hci_dev *hdev,
-				      struct sk_buff *skb)
-{
-	__u8 status = *((__u8 *) skb->data);
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	hci_req_complete(hdev, HCI_OP_WRITE_INQUIRY_MODE, status);
-}
-
 static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
 					 struct sk_buff *skb)
 {
@@ -1023,17 +747,6 @@ static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
 
 	if (!rp->status)
 		hdev->inq_tx_power = rp->tx_power;
-
-	hci_req_complete(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, rp->status);
-}
-
-static void hci_cc_set_event_flt(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	__u8 status = *((__u8 *) skb->data);
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	hci_req_complete(hdev, HCI_OP_SET_EVENT_FLT, status);
 }
 
 static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
@@ -1095,8 +808,6 @@ static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
 	hdev->le_cnt = hdev->le_pkts;
 
 	BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
-
-	hci_req_complete(hdev, HCI_OP_LE_READ_BUFFER_SIZE, rp->status);
 }
 
 static void hci_cc_le_read_local_features(struct hci_dev *hdev,
@@ -1108,8 +819,6 @@ static void hci_cc_le_read_local_features(struct hci_dev *hdev,
 
 	if (!rp->status)
 		memcpy(hdev->le_features, rp->features, 8);
-
-	hci_req_complete(hdev, HCI_OP_LE_READ_LOCAL_FEATURES, rp->status);
 }
 
 static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
@@ -1119,22 +828,8 @@ static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
 
-	if (!rp->status) {
+	if (!rp->status)
 		hdev->adv_tx_power = rp->tx_power;
-		if (!test_bit(HCI_INIT, &hdev->flags))
-			hci_update_ad(hdev);
-	}
-
-	hci_req_complete(hdev, HCI_OP_LE_READ_ADV_TX_POWER, rp->status);
-}
-
-static void hci_cc_le_set_event_mask(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	__u8 status = *((__u8 *) skb->data);
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	hci_req_complete(hdev, HCI_OP_LE_SET_EVENT_MASK, status);
 }
 
 static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
@@ -1231,12 +926,15 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
 			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
 	}
 
-	hci_dev_unlock(hdev);
+	if (!test_bit(HCI_INIT, &hdev->flags)) {
+		struct hci_request req;
 
-	if (!test_bit(HCI_INIT, &hdev->flags))
-		hci_update_ad(hdev);
+		hci_req_init(&req, hdev);
+		hci_update_ad(&req);
+		hci_req_run(&req, NULL);
+	}
 
-	hci_req_complete(hdev, HCI_OP_LE_SET_ADV_ENABLE, status);
+	hci_dev_unlock(hdev);
 }
 
 static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
@@ -1245,8 +943,6 @@ static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
 
-	hci_req_complete(hdev, HCI_OP_LE_SET_SCAN_PARAM, status);
-
 	if (status) {
 		hci_dev_lock(hdev);
 		mgmt_start_discovery_failed(hdev, status);
@@ -1268,9 +964,7 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 		return;
 
 	switch (cp->enable) {
-	case LE_SCANNING_ENABLED:
-		hci_req_complete(hdev, HCI_OP_LE_SET_SCAN_ENABLE, status);
-
+	case LE_SCAN_ENABLE:
 		if (status) {
 			hci_dev_lock(hdev);
 			mgmt_start_discovery_failed(hdev, status);
@@ -1285,7 +979,7 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 		hci_dev_unlock(hdev);
 		break;
 
-	case LE_SCANNING_DISABLED:
+	case LE_SCAN_DISABLE:
 		if (status) {
 			hci_dev_lock(hdev);
 			mgmt_stop_discovery_failed(hdev, status);
@@ -1321,32 +1015,6 @@ static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
 
 	if (!rp->status)
 		hdev->le_white_list_size = rp->size;
-
-	hci_req_complete(hdev, HCI_OP_LE_READ_WHITE_LIST_SIZE, rp->status);
-}
-
-static void hci_cc_le_ltk_reply(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	struct hci_rp_le_ltk_reply *rp = (void *) skb->data;
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
-
-	if (rp->status)
-		return;
-
-	hci_req_complete(hdev, HCI_OP_LE_LTK_REPLY, rp->status);
-}
-
-static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	struct hci_rp_le_ltk_neg_reply *rp = (void *) skb->data;
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
-
-	if (rp->status)
-		return;
-
-	hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
 }
 
 static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
@@ -1358,8 +1026,6 @@ static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
 
 	if (!rp->status)
 		memcpy(hdev->le_states, rp->le_states, 8);
-
-	hci_req_complete(hdev, HCI_OP_LE_READ_SUPPORTED_STATES, rp->status);
 }
 
 static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
@@ -1376,21 +1042,19 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
 
 	if (!status) {
 		if (sent->le)
-			hdev->host_features[0] |= LMP_HOST_LE;
+			hdev->features[1][0] |= LMP_HOST_LE;
 		else
-			hdev->host_features[0] &= ~LMP_HOST_LE;
+			hdev->features[1][0] &= ~LMP_HOST_LE;
 
 		if (sent->simul)
-			hdev->host_features[0] |= LMP_HOST_LE_BREDR;
+			hdev->features[1][0] |= LMP_HOST_LE_BREDR;
 		else
-			hdev->host_features[0] &= ~LMP_HOST_LE_BREDR;
+			hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
 	}
 
 	if (test_bit(HCI_MGMT, &hdev->dev_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 void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev,
@@ -1412,7 +1076,6 @@ static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
 
 	if (status) {
-		hci_req_complete(hdev, HCI_OP_INQUIRY, status);
 		hci_conn_check_pending(hdev);
 		hci_dev_lock(hdev);
 		if (test_bit(HCI_MGMT, &hdev->dev_flags))
@@ -1523,7 +1186,7 @@ static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
 	if (conn) {
 		if (conn->state == BT_CONFIG) {
 			hci_proto_connect_cfm(conn, status);
-			hci_conn_put(conn);
+			hci_conn_drop(conn);
 		}
 	}
 
@@ -1550,7 +1213,7 @@ static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
 	if (conn) {
 		if (conn->state == BT_CONFIG) {
 			hci_proto_connect_cfm(conn, status);
-			hci_conn_put(conn);
+			hci_conn_drop(conn);
 		}
 	}
 
@@ -1712,7 +1375,7 @@ static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
 	if (conn) {
 		if (conn->state == BT_CONFIG) {
 			hci_proto_connect_cfm(conn, status);
-			hci_conn_put(conn);
+			hci_conn_drop(conn);
 		}
 	}
 
@@ -1739,7 +1402,7 @@ static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
 	if (conn) {
 		if (conn->state == BT_CONFIG) {
 			hci_proto_connect_cfm(conn, status);
-			hci_conn_put(conn);
+			hci_conn_drop(conn);
 		}
 	}
 
@@ -1884,11 +1547,6 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
 	}
 }
 
-static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
-{
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-}
-
 static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
 {
 	struct hci_cp_create_phy_link *cp;
@@ -1930,11 +1588,6 @@ static void hci_cs_accept_phylink(struct hci_dev *hdev, u8 status)
 	amp_write_remote_assoc(hdev, cp->phy_handle);
 }
 
-static void hci_cs_create_logical_link(struct hci_dev *hdev, u8 status)
-{
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-}
-
 static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
@@ -1943,13 +1596,14 @@ static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
 
-	hci_req_complete(hdev, HCI_OP_INQUIRY, status);
-
 	hci_conn_check_pending(hdev);
 
 	if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
 		return;
 
+	smp_mb__after_clear_bit(); /* wake_up_bit advises about this barrier */
+	wake_up_bit(&hdev->flags, HCI_INQUIRY);
+
 	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
 		return;
 
@@ -2048,7 +1702,6 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		} else
 			conn->state = BT_CONNECTED;
 
-		hci_conn_hold_device(conn);
 		hci_conn_add_sysfs(conn);
 
 		if (test_bit(HCI_AUTH, &hdev->flags))
@@ -2095,42 +1748,6 @@ unlock:
 	hci_conn_check_pending(hdev);
 }
 
-void hci_conn_accept(struct hci_conn *conn, int mask)
-{
-	struct hci_dev *hdev = conn->hdev;
-
-	BT_DBG("conn %p", conn);
-
-	conn->state = BT_CONFIG;
-
-	if (!lmp_esco_capable(hdev)) {
-		struct hci_cp_accept_conn_req cp;
-
-		bacpy(&cp.bdaddr, &conn->dst);
-
-		if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
-			cp.role = 0x00; /* Become master */
-		else
-			cp.role = 0x01; /* Remain slave */
-
-		hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
-	} else /* lmp_esco_capable(hdev)) */ {
-		struct hci_cp_accept_sync_conn_req cp;
-
-		bacpy(&cp.bdaddr, &conn->dst);
-		cp.pkt_type = cpu_to_le16(conn->pkt_type);
-
-		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;
-
-		hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
-			     sizeof(cp), &cp);
-	}
-}
-
 static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_conn_request *ev = (void *) skb->data;
@@ -2202,7 +1819,6 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		} else {
 			conn->state = BT_CONNECT2;
 			hci_proto_connect_cfm(conn, 0);
-			hci_conn_put(conn);
 		}
 	} else {
 		/* Connection rejected */
@@ -2309,14 +1925,14 @@ static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		} else {
 			conn->state = BT_CONNECTED;
 			hci_proto_connect_cfm(conn, ev->status);
-			hci_conn_put(conn);
+			hci_conn_drop(conn);
 		}
 	} else {
 		hci_auth_cfm(conn, ev->status);
 
 		hci_conn_hold(conn);
 		conn->disc_timeout = HCI_DISCONN_TIMEOUT;
-		hci_conn_put(conn);
+		hci_conn_drop(conn);
 	}
 
 	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
@@ -2399,8 +2015,8 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		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);
+			hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
+			hci_conn_drop(conn);
 			goto unlock;
 		}
 
@@ -2409,7 +2025,7 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 				conn->state = BT_CONNECTED;
 
 			hci_proto_connect_cfm(conn, ev->status);
-			hci_conn_put(conn);
+			hci_conn_drop(conn);
 		} else
 			hci_encrypt_cfm(conn, ev->status, ev->encrypt);
 	}
@@ -2456,7 +2072,7 @@ static void hci_remote_features_evt(struct hci_dev *hdev,
 		goto unlock;
 
 	if (!ev->status)
-		memcpy(conn->features, ev->features, 8);
+		memcpy(conn->features[0], ev->features, 8);
 
 	if (conn->state != BT_CONFIG)
 		goto unlock;
@@ -2484,27 +2100,17 @@ static void hci_remote_features_evt(struct hci_dev *hdev,
 	if (!hci_outgoing_auth_needed(hdev, conn)) {
 		conn->state = BT_CONNECTED;
 		hci_proto_connect_cfm(conn, ev->status);
-		hci_conn_put(conn);
+		hci_conn_drop(conn);
 	}
 
 unlock:
 	hci_dev_unlock(hdev);
 }
 
-static void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	BT_DBG("%s", hdev->name);
-}
-
-static void hci_qos_setup_complete_evt(struct hci_dev *hdev,
-				       struct sk_buff *skb)
-{
-	BT_DBG("%s", hdev->name);
-}
-
 static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_cmd_complete *ev = (void *) skb->data;
+	u8 status = skb->data[sizeof(*ev)];
 	__u16 opcode;
 
 	skb_pull(skb, sizeof(*ev));
@@ -2588,10 +2194,6 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_write_voice_setting(hdev, skb);
 		break;
 
-	case HCI_OP_HOST_BUFFER_SIZE:
-		hci_cc_host_buffer_size(hdev, skb);
-		break;
-
 	case HCI_OP_WRITE_SSP_MODE:
 		hci_cc_write_ssp_mode(hdev, skb);
 		break;
@@ -2620,46 +2222,42 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_read_bd_addr(hdev, skb);
 		break;
 
-	case HCI_OP_READ_DATA_BLOCK_SIZE:
-		hci_cc_read_data_block_size(hdev, skb);
+	case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
+		hci_cc_read_page_scan_activity(hdev, skb);
 		break;
 
-	case HCI_OP_WRITE_CA_TIMEOUT:
-		hci_cc_write_ca_timeout(hdev, skb);
+	case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
+		hci_cc_write_page_scan_activity(hdev, skb);
 		break;
 
-	case HCI_OP_READ_FLOW_CONTROL_MODE:
-		hci_cc_read_flow_control_mode(hdev, skb);
+	case HCI_OP_READ_PAGE_SCAN_TYPE:
+		hci_cc_read_page_scan_type(hdev, skb);
 		break;
 
-	case HCI_OP_READ_LOCAL_AMP_INFO:
-		hci_cc_read_local_amp_info(hdev, skb);
+	case HCI_OP_WRITE_PAGE_SCAN_TYPE:
+		hci_cc_write_page_scan_type(hdev, skb);
 		break;
 
-	case HCI_OP_READ_LOCAL_AMP_ASSOC:
-		hci_cc_read_local_amp_assoc(hdev, skb);
+	case HCI_OP_READ_DATA_BLOCK_SIZE:
+		hci_cc_read_data_block_size(hdev, skb);
 		break;
 
-	case HCI_OP_DELETE_STORED_LINK_KEY:
-		hci_cc_delete_stored_link_key(hdev, skb);
+	case HCI_OP_READ_FLOW_CONTROL_MODE:
+		hci_cc_read_flow_control_mode(hdev, skb);
 		break;
 
-	case HCI_OP_SET_EVENT_MASK:
-		hci_cc_set_event_mask(hdev, skb);
+	case HCI_OP_READ_LOCAL_AMP_INFO:
+		hci_cc_read_local_amp_info(hdev, skb);
 		break;
 
-	case HCI_OP_WRITE_INQUIRY_MODE:
-		hci_cc_write_inquiry_mode(hdev, skb);
+	case HCI_OP_READ_LOCAL_AMP_ASSOC:
+		hci_cc_read_local_amp_assoc(hdev, skb);
 		break;
 
 	case HCI_OP_READ_INQ_RSP_TX_POWER:
 		hci_cc_read_inq_rsp_tx_power(hdev, skb);
 		break;
 
-	case HCI_OP_SET_EVENT_FLT:
-		hci_cc_set_event_flt(hdev, skb);
-		break;
-
 	case HCI_OP_PIN_CODE_REPLY:
 		hci_cc_pin_code_reply(hdev, skb);
 		break;
@@ -2684,10 +2282,6 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_le_read_adv_tx_power(hdev, skb);
 		break;
 
-	case HCI_OP_LE_SET_EVENT_MASK:
-		hci_cc_le_set_event_mask(hdev, skb);
-		break;
-
 	case HCI_OP_USER_CONFIRM_REPLY:
 		hci_cc_user_confirm_reply(hdev, skb);
 		break;
@@ -2720,14 +2314,6 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_le_read_white_list_size(hdev, skb);
 		break;
 
-	case HCI_OP_LE_LTK_REPLY:
-		hci_cc_le_ltk_reply(hdev, skb);
-		break;
-
-	case HCI_OP_LE_LTK_NEG_REPLY:
-		hci_cc_le_ltk_neg_reply(hdev, skb);
-		break;
-
 	case HCI_OP_LE_READ_SUPPORTED_STATES:
 		hci_cc_le_read_supported_states(hdev, skb);
 		break;
@@ -2745,9 +2331,11 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		break;
 	}
 
-	if (ev->opcode != HCI_OP_NOP)
+	if (opcode != HCI_OP_NOP)
 		del_timer(&hdev->cmd_timer);
 
+	hci_req_cmd_complete(hdev, opcode, status);
+
 	if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
 		atomic_set(&hdev->cmd_cnt, 1);
 		if (!skb_queue_empty(&hdev->cmd_q))
@@ -2817,10 +2405,6 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cs_le_create_conn(hdev, ev->status);
 		break;
 
-	case HCI_OP_LE_START_ENC:
-		hci_cs_le_start_enc(hdev, ev->status);
-		break;
-
 	case HCI_OP_CREATE_PHY_LINK:
 		hci_cs_create_phylink(hdev, ev->status);
 		break;
@@ -2829,18 +2413,18 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cs_accept_phylink(hdev, ev->status);
 		break;
 
-	case HCI_OP_CREATE_LOGICAL_LINK:
-		hci_cs_create_logical_link(hdev, ev->status);
-		break;
-
 	default:
 		BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
 		break;
 	}
 
-	if (ev->opcode != HCI_OP_NOP)
+	if (opcode != HCI_OP_NOP)
 		del_timer(&hdev->cmd_timer);
 
+	if (ev->status ||
+	    (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))
+		hci_req_cmd_complete(hdev, opcode, ev->status);
+
 	if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
 		atomic_set(&hdev->cmd_cnt, 1);
 		if (!skb_queue_empty(&hdev->cmd_q))
@@ -3056,7 +2640,7 @@ static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	if (conn->state == BT_CONNECTED) {
 		hci_conn_hold(conn);
 		conn->disc_timeout = HCI_PAIRING_TIMEOUT;
-		hci_conn_put(conn);
+		hci_conn_drop(conn);
 	}
 
 	if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags))
@@ -3159,7 +2743,7 @@ static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
 			conn->key_type = ev->key_type;
 
-		hci_conn_put(conn);
+		hci_conn_drop(conn);
 	}
 
 	if (test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
@@ -3300,6 +2884,9 @@ static void hci_remote_ext_features_evt(struct hci_dev *hdev,
 	if (!conn)
 		goto unlock;
 
+	if (ev->page < HCI_MAX_PAGES)
+		memcpy(conn->features[ev->page], ev->features, 8);
+
 	if (!ev->status && ev->page == 0x01) {
 		struct inquiry_entry *ie;
 
@@ -3307,8 +2894,19 @@ static void hci_remote_ext_features_evt(struct hci_dev *hdev,
 		if (ie)
 			ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
 
-		if (ev->features[0] & LMP_HOST_SSP)
+		if (ev->features[0] & LMP_HOST_SSP) {
 			set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
+		} else {
+			/* It is mandatory by the Bluetooth specification that
+			 * Extended Inquiry Results are only used when Secure
+			 * Simple Pairing is enabled, but some devices violate
+			 * this.
+			 *
+			 * To make these devices work, the internal SSP
+			 * enabled flag needs to be cleared if the remote host
+			 * features do not indicate SSP support */
+			clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
+		}
 	}
 
 	if (conn->state != BT_CONFIG)
@@ -3328,7 +2926,7 @@ static void hci_remote_ext_features_evt(struct hci_dev *hdev,
 	if (!hci_outgoing_auth_needed(hdev, conn)) {
 		conn->state = BT_CONNECTED;
 		hci_proto_connect_cfm(conn, ev->status);
-		hci_conn_put(conn);
+		hci_conn_drop(conn);
 	}
 
 unlock:
@@ -3362,7 +2960,6 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
 		conn->handle = __le16_to_cpu(ev->handle);
 		conn->state  = BT_CONNECTED;
 
-		hci_conn_hold_device(conn);
 		hci_conn_add_sysfs(conn);
 		break;
 
@@ -3391,18 +2988,6 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
-static void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	BT_DBG("%s", hdev->name);
-}
-
-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 0x%2.2x", hdev->name, ev->status);
-}
-
 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
 					    struct sk_buff *skb)
 {
@@ -3472,8 +3057,8 @@ static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
 	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);
+		hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
+		hci_conn_drop(conn);
 		goto unlock;
 	}
 
@@ -3482,13 +3067,13 @@ static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
 			conn->state = BT_CONNECTED;
 
 		hci_proto_connect_cfm(conn, ev->status);
-		hci_conn_put(conn);
+		hci_conn_drop(conn);
 	} else {
 		hci_auth_cfm(conn, ev->status);
 
 		hci_conn_hold(conn);
 		conn->disc_timeout = HCI_DISCONN_TIMEOUT;
-		hci_conn_put(conn);
+		hci_conn_drop(conn);
 	}
 
 unlock:
@@ -3749,7 +3334,7 @@ static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
 		mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
 				 ev->status);
 
-	hci_conn_put(conn);
+	hci_conn_drop(conn);
 
 unlock:
 	hci_dev_unlock(hdev);
@@ -3760,11 +3345,16 @@ static void hci_remote_host_features_evt(struct hci_dev *hdev,
 {
 	struct hci_ev_remote_host_features *ev = (void *) skb->data;
 	struct inquiry_entry *ie;
+	struct hci_conn *conn;
 
 	BT_DBG("%s", hdev->name);
 
 	hci_dev_lock(hdev);
 
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (conn)
+		memcpy(conn->features[1], ev->features, 8);
+
 	ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
 	if (ie)
 		ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
@@ -3837,9 +3427,8 @@ static void hci_phy_link_complete_evt(struct hci_dev *hdev,
 
 	hci_conn_hold(hcon);
 	hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
-	hci_conn_put(hcon);
+	hci_conn_drop(hcon);
 
-	hci_conn_hold_device(hcon);
 	hci_conn_add_sysfs(hcon);
 
 	amp_physical_cfm(bredr_hcon, hcon);
@@ -3973,7 +3562,6 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	conn->handle = __le16_to_cpu(ev->handle);
 	conn->state = BT_CONNECTED;
 
-	hci_conn_hold_device(conn);
 	hci_conn_add_sysfs(conn);
 
 	hci_proto_connect_cfm(conn, ev->status);
@@ -4087,8 +3675,27 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 	struct hci_event_hdr *hdr = (void *) skb->data;
 	__u8 event = hdr->evt;
 
+	hci_dev_lock(hdev);
+
+	/* Received events are (currently) only needed when a request is
+	 * ongoing so avoid unnecessary memory allocation.
+	 */
+	if (hdev->req_status == HCI_REQ_PEND) {
+		kfree_skb(hdev->recv_evt);
+		hdev->recv_evt = skb_clone(skb, GFP_KERNEL);
+	}
+
+	hci_dev_unlock(hdev);
+
 	skb_pull(skb, HCI_EVENT_HDR_SIZE);
 
+	if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
+		struct hci_command_hdr *hdr = (void *) hdev->sent_cmd->data;
+		u16 opcode = __le16_to_cpu(hdr->opcode);
+
+		hci_req_cmd_complete(hdev, opcode, 0);
+	}
+
 	switch (event) {
 	case HCI_EV_INQUIRY_COMPLETE:
 		hci_inquiry_complete_evt(hdev, skb);
@@ -4130,14 +3737,6 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_remote_features_evt(hdev, skb);
 		break;
 
-	case HCI_EV_REMOTE_VERSION:
-		hci_remote_version_evt(hdev, skb);
-		break;
-
-	case HCI_EV_QOS_SETUP_COMPLETE:
-		hci_qos_setup_complete_evt(hdev, skb);
-		break;
-
 	case HCI_EV_CMD_COMPLETE:
 		hci_cmd_complete_evt(hdev, skb);
 		break;
@@ -4194,14 +3793,6 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_sync_conn_complete_evt(hdev, skb);
 		break;
 
-	case HCI_EV_SYNC_CONN_CHANGED:
-		hci_sync_conn_changed_evt(hdev, skb);
-		break;
-
-	case HCI_EV_SNIFF_SUBRATE:
-		hci_sniff_subrate_evt(hdev, skb);
-		break;
-
 	case HCI_EV_EXTENDED_INQUIRY_RESULT:
 		hci_extended_inquiry_result_evt(hdev, skb);
 		break;