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

Documentation/devicetree/bindings/net/nfc/st21nfca.txt

···
 * STMicroelectronics SAS. ST21NFCA NFC Controller
 
 Required properties:
-- compatible: Should be "st,st21nfca-i2c".
+- compatible: Should be "st,st21nfca_i2c".
 - clock-frequency: I²C work frequency.
 - reg: address on the bus
 - interrupt-parent: phandle for the interrupt gpio controller

drivers/bluetooth/btusb.c

···
 #define BTUSB_WRONG_SCO_MTU	0x40
 #define BTUSB_ATH3012		0x80
 #define BTUSB_INTEL		0x100
+#define BTUSB_BCM_PATCHRAM	0x200
 
 static const struct usb_device_id btusb_table[] = {
 	/* Generic Bluetooth USB device */
···
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 
 	/* Broadcom devices with vendor specific id */
-	{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
+	  .driver_info = BTUSB_BCM_PATCHRAM },
 
 	/* Belkin F8065bf - Broadcom based */
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
···
 	return 0;
 }
 
+static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
+{
+	struct btusb_data *data = hci_get_drvdata(hdev);
+	struct usb_device *udev = data->udev;
+	char fw_name[64];
+	const struct firmware *fw;
+	const u8 *fw_ptr;
+	size_t fw_size;
+	const struct hci_command_hdr *cmd;
+	const u8 *cmd_param;
+	u16 opcode;
+	struct sk_buff *skb;
+	struct hci_rp_read_local_version *ver;
+	long ret;
+
+	snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
+		 udev->product ? udev->product : "BCM",
+		 le16_to_cpu(udev->descriptor.idVendor),
+		 le16_to_cpu(udev->descriptor.idProduct));
+
+	ret = request_firmware(&fw, fw_name, &hdev->dev);
+	if (ret < 0) {
+		BT_INFO("%s: BCM: patch %s not found", hdev->name,
+			fw_name);
+		return 0;
+	}
+
+	/* Reset */
+	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		ret = PTR_ERR(skb);
+		BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
+		goto done;
+	}
+	kfree_skb(skb);
+
+	/* Read Local Version Info */
+	skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
+			     HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		ret = PTR_ERR(skb);
+		BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
+			hdev->name, ret);
+		goto done;
+	}
+
+	if (skb->len != sizeof(*ver)) {
+		BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
+			hdev->name);
+		kfree_skb(skb);
+		ret = -EIO;
+		goto done;
+	}
+
+	ver = (struct hci_rp_read_local_version *) skb->data;
+	BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
+		"lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
+		ver->lmp_ver, ver->lmp_subver);
+	kfree_skb(skb);
+
+	/* Start Download */
+	skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		ret = PTR_ERR(skb);
+		BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
+			hdev->name, ret);
+		goto reset_fw;
+	}
+	kfree_skb(skb);
+
+	/* 50 msec delay after Download Minidrv completes */
+	msleep(50);
+
+	fw_ptr = fw->data;
+	fw_size = fw->size;
+
+	while (fw_size >= sizeof(*cmd)) {
+		cmd = (struct hci_command_hdr *) fw_ptr;
+		fw_ptr += sizeof(*cmd);
+		fw_size -= sizeof(*cmd);
+
+		if (fw_size < cmd->plen) {
+			BT_ERR("%s: BCM: patch %s is corrupted",
+				hdev->name, fw_name);
+			ret = -EINVAL;
+			goto reset_fw;
+		}
+
+		cmd_param = fw_ptr;
+		fw_ptr += cmd->plen;
+		fw_size -= cmd->plen;
+
+		opcode = le16_to_cpu(cmd->opcode);
+
+		skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
+				     HCI_INIT_TIMEOUT);
+		if (IS_ERR(skb)) {
+			ret = PTR_ERR(skb);
+			BT_ERR("%s: BCM: patch command %04x failed (%ld)",
+				hdev->name, opcode, ret);
+			goto reset_fw;
+		}
+		kfree_skb(skb);
+	}
+
+	/* 250 msec delay after Launch Ram completes */
+	msleep(250);
+
+reset_fw:
+	/* Reset */
+	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		ret = PTR_ERR(skb);
+		BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
+		goto done;
+	}
+	kfree_skb(skb);
+
+	/* Read Local Version Info */
+	skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
+			     HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		ret = PTR_ERR(skb);
+		BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
+			hdev->name, ret);
+		goto done;
+	}
+
+	if (skb->len != sizeof(*ver)) {
+		BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
+			hdev->name);
+		kfree_skb(skb);
+		ret = -EIO;
+		goto done;
+	}
+
+	ver = (struct hci_rp_read_local_version *) skb->data;
+	BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
+		"lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
+		ver->lmp_ver, ver->lmp_subver);
+	kfree_skb(skb);
+
+done:
+	release_firmware(fw);
+
+	return ret;
+}
+
 static int btusb_probe(struct usb_interface *intf,
 				const struct usb_device_id *id)
 {
···
 
 	if (id->driver_info & BTUSB_BCM92035)
 		hdev->setup = btusb_setup_bcm92035;
+
+	if (id->driver_info & BTUSB_BCM_PATCHRAM)
+		hdev->setup = btusb_setup_bcm_patchram;
 
 	if (id->driver_info & BTUSB_INTEL)
 		hdev->setup = btusb_setup_intel;

drivers/net/wireless/at76c50x-usb.c

···
 static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size,
 				int manifest_sync_timeout)
 {
-	u8 *block;
-	struct dfu_status dfu_stat_buf;
 	int ret = 0;
 	int need_dfu_state = 1;
 	int is_done = 0;
-	u8 dfu_state = 0;
 	u32 dfu_timeout = 0;
 	int bsize = 0;
 	int blockno = 0;
+	struct dfu_status *dfu_stat_buf = NULL;
+	u8 *dfu_state = NULL;
+	u8 *block = NULL;
 
 	at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size,
 		 manifest_sync_timeout);
···
 		return -EINVAL;
 	}
 
+	dfu_stat_buf = kmalloc(sizeof(struct dfu_status), GFP_KERNEL);
+	if (!dfu_stat_buf) {
+		ret = -ENOMEM;
+		goto exit;
+	}
+
 	block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL);
-	if (!block)
-		return -ENOMEM;
+	if (!block) {
+		ret = -ENOMEM;
+		goto exit;
+	}
+
+	dfu_state = kmalloc(sizeof(u8), GFP_KERNEL);
+	if (!dfu_state) {
+		ret = -ENOMEM;
+		goto exit;
+	}
+	*dfu_state = 0;
 
 	do {
 		if (need_dfu_state) {
-			ret = at76_dfu_get_state(udev, &dfu_state);
+			ret = at76_dfu_get_state(udev, dfu_state);
 			if (ret < 0) {
 				dev_err(&udev->dev,
 					"cannot get DFU state: %d\n", ret);
···
 			need_dfu_state = 0;
 		}
 
-		switch (dfu_state) {
+		switch (*dfu_state) {
 		case STATE_DFU_DOWNLOAD_SYNC:
 			at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC");
-			ret = at76_dfu_get_status(udev, &dfu_stat_buf);
+			ret = at76_dfu_get_status(udev, dfu_stat_buf);
 			if (ret >= 0) {
-				dfu_state = dfu_stat_buf.state;
-				dfu_timeout = at76_get_timeout(&dfu_stat_buf);
+				*dfu_state = dfu_stat_buf->state;
+				dfu_timeout = at76_get_timeout(dfu_stat_buf);
 				need_dfu_state = 0;
 			} else
 				dev_err(&udev->dev,
···
 		case STATE_DFU_MANIFEST_SYNC:
 			at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC");
 
-			ret = at76_dfu_get_status(udev, &dfu_stat_buf);
+			ret = at76_dfu_get_status(udev, dfu_stat_buf);
 			if (ret < 0)
 				break;
 
-			dfu_state = dfu_stat_buf.state;
-			dfu_timeout = at76_get_timeout(&dfu_stat_buf);
+			*dfu_state = dfu_stat_buf->state;
+			dfu_timeout = at76_get_timeout(dfu_stat_buf);
 			need_dfu_state = 0;
 
 			/* override the timeout from the status response,
···
 			break;
 
 		default:
-			at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state);
+			at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", *dfu_state);
 			ret = -EINVAL;
 			break;
 		}
 	} while (!is_done && (ret >= 0));
 
 exit:
+	kfree(dfu_state);
 	kfree(block);
+	kfree(dfu_stat_buf);
+
 	if (ret >= 0)
 		ret = 0;
 
···
 			dev_err(&udev->dev,
 				"loading %dth firmware block failed: %d\n",
 				blockno, ret);
+			ret = -EIO;
 			goto exit;
 		}
 		buf += bsize;
···
 	ieee80211_queue_work(hw, &priv->work_set_promisc);
 }
 
+static int at76_set_wep(struct at76_priv *priv)
+{
+	int ret = 0;
+	struct mib_mac_wep *mib_data = &priv->mib_buf.data.wep_mib;
+
+	priv->mib_buf.type = MIB_MAC_WEP;
+	priv->mib_buf.size = sizeof(struct mib_mac_wep);
+	priv->mib_buf.index = 0;
+
+	memset(mib_data, 0, sizeof(*mib_data));
+
+	if (priv->wep_enabled) {
+		if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN)
+			mib_data->encryption_level = 2;
+		else
+			mib_data->encryption_level = 1;
+
+		/* always exclude unencrypted if WEP is active */
+		mib_data->exclude_unencrypted = 1;
+	} else {
+		mib_data->exclude_unencrypted = 0;
+		mib_data->encryption_level = 0;
+	}
+
+	mib_data->privacy_invoked = priv->wep_enabled;
+	mib_data->wep_default_key_id = priv->wep_key_id;
+	memcpy(mib_data->wep_default_keyvalue, priv->wep_keys,
+	       sizeof(priv->wep_keys));
+
+	ret = at76_set_mib(priv, &priv->mib_buf);
+
+	if (ret < 0)
+		wiphy_err(priv->hw->wiphy,
+			  "set_mib (wep) failed: %d\n", ret);
+
+	return ret;
+}
+
 static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 			struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 			struct ieee80211_key_conf *key)
···
 			priv->wep_enabled = 1;
 	}
 
-	at76_startup_device(priv);
+	at76_set_wep(priv);
 
 	mutex_unlock(&priv->mtx);
 
···
 	struct usb_device *udev;
 	int op_mode;
 	int need_ext_fw = 0;
-	struct mib_fw_version fwv;
+	struct mib_fw_version *fwv = NULL;
 	int board_type = (int)id->driver_info;
 
 	udev = usb_get_dev(interface_to_usbdev(interface));
+
+	fwv = kmalloc(sizeof(*fwv), GFP_KERNEL);
+	if (!fwv) {
+		ret = -ENOMEM;
+		goto exit;
+	}
 
 	/* Load firmware into kernel memory */
 	fwe = at76_load_firmware(udev, board_type);
 	if (!fwe) {
 		ret = -ENOENT;
-		goto error;
+		goto exit;
 	}
 
 	op_mode = at76_get_op_mode(udev);
···
 		dev_err(&interface->dev,
 			"cannot handle a device in HW_CONFIG_MODE\n");
 		ret = -EBUSY;
-		goto error;
+		goto exit;
 	}
 
 	if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH
···
 			dev_err(&interface->dev,
 				"error %d downloading internal firmware\n",
 				ret);
-			goto error;
+			goto exit;
 		}
 		usb_put_dev(udev);
-		return ret;
+		goto exit;
 	}
 
 	/* Internal firmware already inside the device.  Get firmware
···
 	 * query the device for the fw version */
 	if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100)
 	    || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) {
-		ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv));
-		if (ret < 0 || (fwv.major | fwv.minor) == 0)
+		ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
+		if (ret < 0 || (fwv->major | fwv->minor) == 0)
 			need_ext_fw = 1;
 	} else
 		/* No way to check firmware version, reload to be sure */
···
 			   "downloading external firmware\n");
 
 		ret = at76_load_external_fw(udev, fwe);
-		if (ret)
-			goto error;
+		if (ret < 0)
+			goto exit;
 
 		/* Re-check firmware version */
-		ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv));
+		ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
 		if (ret < 0) {
 			dev_err(&interface->dev,
 				"error %d getting firmware version\n", ret);
-			goto error;
+			goto exit;
 		}
 	}
 
 	priv = at76_alloc_new_device(udev);
 	if (!priv) {
 		ret = -ENOMEM;
-		goto error;
+		goto exit;
 	}
 
 	usb_set_intfdata(interface, priv);
 
-	memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version));
+	memcpy(&priv->fw_version, fwv, sizeof(struct mib_fw_version));
 	priv->board_type = board_type;
 
 	ret = at76_init_new_device(priv, interface);
 	if (ret < 0)
 		at76_delete_device(priv);
 
-	return ret;
-
-error:
-	usb_put_dev(udev);
+exit:
+	kfree(fwv);
+	if (ret < 0)
+		usb_put_dev(udev);
 	return ret;
 }
 

drivers/net/wireless/at76c50x-usb.h

···
 	u8 reserved;
 } __packed;
 
-struct set_mib_buffer {
-	u8 type;
-	u8 size;
-	u8 index;
-	u8 reserved;
-	union {
-		u8 byte;
-		__le16 word;
-		u8 addr[ETH_ALEN];
-	} data;
-} __packed;
-
 struct mib_local {
 	u16 reserved0;
 	u8 beacon_enable;
···
 struct mib_mdomain {
 	u8 tx_powerlevel[14];
 	u8 channel_list[14];	/* 0 for invalid channels */
+} __packed;
+
+struct set_mib_buffer {
+	u8 type;
+	u8 size;
+	u8 index;
+	u8 reserved;
+	union {
+		u8 byte;
+		__le16 word;
+		u8 addr[ETH_ALEN];
+		struct mib_mac_wep wep_mib;
+	} data;
 } __packed;
 
 struct at76_fw_header {

drivers/net/wireless/ath/ath10k/bmi.h

···
 									\
 		addr = host_interest_item_address(HI_ITEM(item));	\
 		ret = ath10k_bmi_read_memory(ar, addr, (u8 *)&tmp, 4); \
-		*val = __le32_to_cpu(tmp);				\
+		if (!ret)						\
+			*val = __le32_to_cpu(tmp);			\
 		ret;							\
 	 })
 

drivers/net/wireless/ath/ath10k/ce.c

···
 	return ret;
 }
 
+void __ath10k_ce_send_revert(struct ath10k_ce_pipe *pipe)
+{
+	struct ath10k *ar = pipe->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_ce_ring *src_ring = pipe->src_ring;
+	u32 ctrl_addr = pipe->ctrl_addr;
+
+	lockdep_assert_held(&ar_pci->ce_lock);
+
+	/*
+	 * This function must be called only if there is an incomplete
+	 * scatter-gather transfer (before index register is updated)
+	 * that needs to be cleaned up.
+	 */
+	if (WARN_ON_ONCE(src_ring->write_index == src_ring->sw_index))
+		return;
+
+	if (WARN_ON_ONCE(src_ring->write_index ==
+			 ath10k_ce_src_ring_write_index_get(ar, ctrl_addr)))
+		return;
+
+	src_ring->write_index--;
+	src_ring->write_index &= src_ring->nentries_mask;
+
+	src_ring->per_transfer_context[src_ring->write_index] = NULL;
+}
+
 int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 		   void *per_transfer_context,
 		   u32 buffer,

drivers/net/wireless/ath/ath10k/ce.h

···
 			  unsigned int transfer_id,
 			  unsigned int flags);
 
+void __ath10k_ce_send_revert(struct ath10k_ce_pipe *pipe);
+
 void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
 				void (*send_cb)(struct ath10k_ce_pipe *),
 				int disable_interrupts);

drivers/net/wireless/ath/ath10k/core.c

···
 	complete(&ar->target_suspend);
 }
 
-static int ath10k_init_connect_htc(struct ath10k *ar)
-{
-	int status;
-
-	status = ath10k_wmi_connect_htc_service(ar);
-	if (status)
-		goto conn_fail;
-
-	/* Start HTC */
-	status = ath10k_htc_start(&ar->htc);
-	if (status)
-		goto conn_fail;
-
-	/* Wait for WMI event to be ready */
-	status = ath10k_wmi_wait_for_service_ready(ar);
-	if (status <= 0) {
-		ath10k_warn("wmi service ready event not received");
-		status = -ETIMEDOUT;
-		goto timeout;
-	}
-
-	ath10k_dbg(ATH10K_DBG_BOOT, "boot wmi ready\n");
-	return 0;
-
-timeout:
-	ath10k_htc_stop(&ar->htc);
-conn_fail:
-	return status;
-}
-
 static int ath10k_init_configure_target(struct ath10k *ar)
 {
 	u32 param_host;
···
 	switch (ar->state) {
 	case ATH10K_STATE_ON:
 		ar->state = ATH10K_STATE_RESTARTING;
-		ath10k_halt(ar);
+		del_timer_sync(&ar->scan.timeout);
+		ath10k_reset_scan((unsigned long)ar);
 		ieee80211_restart_hw(ar->hw);
 		break;
 	case ATH10K_STATE_OFF:
···
 		ath10k_warn("cannot restart a device that hasn't been started\n");
 		break;
 	case ATH10K_STATE_RESTARTING:
+		/* hw restart might be requested from multiple places */
+		break;
 	case ATH10K_STATE_RESTARTED:
 		ar->state = ATH10K_STATE_WEDGED;
 		/* fall through */
···
 
 	mutex_unlock(&ar->conf_mutex);
 }
-
-struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
-				  const struct ath10k_hif_ops *hif_ops)
-{
-	struct ath10k *ar;
-
-	ar = ath10k_mac_create();
-	if (!ar)
-		return NULL;
-
-	ar->ath_common.priv = ar;
-	ar->ath_common.hw = ar->hw;
-
-	ar->p2p = !!ath10k_p2p;
-	ar->dev = dev;
-
-	ar->hif.priv = hif_priv;
-	ar->hif.ops = hif_ops;
-
-	init_completion(&ar->scan.started);
-	init_completion(&ar->scan.completed);
-	init_completion(&ar->scan.on_channel);
-	init_completion(&ar->target_suspend);
-
-	init_completion(&ar->install_key_done);
-	init_completion(&ar->vdev_setup_done);
-
-	setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar);
-
-	ar->workqueue = create_singlethread_workqueue("ath10k_wq");
-	if (!ar->workqueue)
-		goto err_wq;
-
-	mutex_init(&ar->conf_mutex);
-	spin_lock_init(&ar->data_lock);
-
-	INIT_LIST_HEAD(&ar->peers);
-	init_waitqueue_head(&ar->peer_mapping_wq);
-
-	init_completion(&ar->offchan_tx_completed);
-	INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
-	skb_queue_head_init(&ar->offchan_tx_queue);
-
-	INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
-	skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
-
-	INIT_WORK(&ar->restart_work, ath10k_core_restart);
-
-	return ar;
-
-err_wq:
-	ath10k_mac_destroy(ar);
-	return NULL;
-}
-EXPORT_SYMBOL(ath10k_core_create);
-
-void ath10k_core_destroy(struct ath10k *ar)
-{
-	flush_workqueue(ar->workqueue);
-	destroy_workqueue(ar->workqueue);
-
-	ath10k_mac_destroy(ar);
-}
-EXPORT_SYMBOL(ath10k_core_destroy);
 
 int ath10k_core_start(struct ath10k *ar)
 {
···
 		goto err;
 	}
 
+	status = ath10k_htt_init(ar);
+	if (status) {
+		ath10k_err("failed to init htt: %d\n", status);
+		goto err_wmi_detach;
+	}
+
+	status = ath10k_htt_tx_alloc(&ar->htt);
+	if (status) {
+		ath10k_err("failed to alloc htt tx: %d\n", status);
+		goto err_wmi_detach;
+	}
+
+	status = ath10k_htt_rx_alloc(&ar->htt);
+	if (status) {
+		ath10k_err("failed to alloc htt rx: %d\n", status);
+		goto err_htt_tx_detach;
+	}
+
 	status = ath10k_hif_start(ar);
 	if (status) {
 		ath10k_err("could not start HIF: %d\n", status);
-		goto err_wmi_detach;
+		goto err_htt_rx_detach;
 	}
 
 	status = ath10k_htc_wait_target(&ar->htc);
···
 		goto err_hif_stop;
 	}
 
-	status = ath10k_htt_attach(ar);
+	status = ath10k_htt_connect(&ar->htt);
 	if (status) {
-		ath10k_err("could not attach htt (%d)\n", status);
+		ath10k_err("failed to connect htt (%d)\n", status);
 		goto err_hif_stop;
 	}
 
-	status = ath10k_init_connect_htc(ar);
-	if (status)
-		goto err_htt_detach;
+	status = ath10k_wmi_connect(ar);
+	if (status) {
+		ath10k_err("could not connect wmi: %d\n", status);
+		goto err_hif_stop;
+	}
+
+	status = ath10k_htc_start(&ar->htc);
+	if (status) {
+		ath10k_err("failed to start htc: %d\n", status);
+		goto err_hif_stop;
+	}
+
+	status = ath10k_wmi_wait_for_service_ready(ar);
+	if (status <= 0) {
+		ath10k_warn("wmi service ready event not received");
+		status = -ETIMEDOUT;
+		goto err_htc_stop;
+	}
 
 	ath10k_dbg(ATH10K_DBG_BOOT, "firmware %s booted\n",
 		   ar->hw->wiphy->fw_version);
···
 	status = ath10k_wmi_cmd_init(ar);
 	if (status) {
 		ath10k_err("could not send WMI init command (%d)\n", status);
-		goto err_disconnect_htc;
+		goto err_htc_stop;
 	}
 
 	status = ath10k_wmi_wait_for_unified_ready(ar);
 	if (status <= 0) {
 		ath10k_err("wmi unified ready event not received\n");
 		status = -ETIMEDOUT;
-		goto err_disconnect_htc;
+		goto err_htc_stop;
 	}
 
-	status = ath10k_htt_attach_target(&ar->htt);
-	if (status)
-		goto err_disconnect_htc;
+	status = ath10k_htt_setup(&ar->htt);
+	if (status) {
+		ath10k_err("failed to setup htt: %d\n", status);
+		goto err_htc_stop;
+	}
 
 	status = ath10k_debug_start(ar);
 	if (status)
-		goto err_disconnect_htc;
+		goto err_htc_stop;
 
 	ar->free_vdev_map = (1 << TARGET_NUM_VDEVS) - 1;
 	INIT_LIST_HEAD(&ar->arvifs);
···
 
 	return 0;
 
-err_disconnect_htc:
+err_htc_stop:
 	ath10k_htc_stop(&ar->htc);
-err_htt_detach:
-	ath10k_htt_detach(&ar->htt);
 err_hif_stop:
 	ath10k_hif_stop(ar);
+err_htt_rx_detach:
+	ath10k_htt_rx_free(&ar->htt);
+err_htt_tx_detach:
+	ath10k_htt_tx_free(&ar->htt);
 err_wmi_detach:
 	ath10k_wmi_detach(ar);
 err:
···
 
 	ath10k_debug_stop(ar);
 	ath10k_htc_stop(&ar->htc);
-	ath10k_htt_detach(&ar->htt);
+	ath10k_hif_stop(ar);
+	ath10k_htt_tx_free(&ar->htt);
+	ath10k_htt_rx_free(&ar->htt);
 	ath10k_wmi_detach(ar);
 }
 EXPORT_SYMBOL(ath10k_core_stop);
···
 	return 0;
 }
 
-int ath10k_core_register(struct ath10k *ar, u32 chip_id)
+static void ath10k_core_register_work(struct work_struct *work)
 {
+	struct ath10k *ar = container_of(work, struct ath10k, register_work);
 	int status;
-
-	ar->chip_id = chip_id;
-
-	status = ath10k_core_check_chip_id(ar);
-	if (status) {
-		ath10k_err("Unsupported chip id 0x%08x\n", ar->chip_id);
-		return status;
-	}
 
 	status = ath10k_core_probe_fw(ar);
 	if (status) {
 		ath10k_err("could not probe fw (%d)\n", status);
-		return status;
+		goto err;
 	}
 
 	status = ath10k_mac_register(ar);
···
 		goto err_unregister_mac;
 	}
 
-	return 0;
+	set_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags);
+	return;
 
 err_unregister_mac:
 	ath10k_mac_unregister(ar);
 err_release_fw:
 	ath10k_core_free_firmware_files(ar);
-	return status;
+err:
+	device_release_driver(ar->dev);
+	return;
+}
+
+int ath10k_core_register(struct ath10k *ar, u32 chip_id)
+{
+	int status;
+
+	ar->chip_id = chip_id;
+
+	status = ath10k_core_check_chip_id(ar);
+	if (status) {
+		ath10k_err("Unsupported chip id 0x%08x\n", ar->chip_id);
+		return status;
+	}
+
+	queue_work(ar->workqueue, &ar->register_work);
+
+	return 0;
 }
 EXPORT_SYMBOL(ath10k_core_register);
 
 void ath10k_core_unregister(struct ath10k *ar)
 {
+	cancel_work_sync(&ar->register_work);
+
+	if (!test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags))
+		return;
+
 	/* We must unregister from mac80211 before we stop HTC and HIF.
 	 * Otherwise we will fail to submit commands to FW and mac80211 will be
 	 * unhappy about callback failures. */
···
 	ath10k_debug_destroy(ar);
 }
 EXPORT_SYMBOL(ath10k_core_unregister);
+
+struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
+				  const struct ath10k_hif_ops *hif_ops)
+{
+	struct ath10k *ar;
+
+	ar = ath10k_mac_create();
+	if (!ar)
+		return NULL;
+
+	ar->ath_common.priv = ar;
+	ar->ath_common.hw = ar->hw;
+
+	ar->p2p = !!ath10k_p2p;
+	ar->dev = dev;
+
+	ar->hif.priv = hif_priv;
+	ar->hif.ops = hif_ops;
+
+	init_completion(&ar->scan.started);
+	init_completion(&ar->scan.completed);
+	init_completion(&ar->scan.on_channel);
+	init_completion(&ar->target_suspend);
+
+	init_completion(&ar->install_key_done);
+	init_completion(&ar->vdev_setup_done);
+
+	setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar);
+
+	ar->workqueue = create_singlethread_workqueue("ath10k_wq");
+	if (!ar->workqueue)
+		goto err_wq;
+
+	mutex_init(&ar->conf_mutex);
+	spin_lock_init(&ar->data_lock);
+
+	INIT_LIST_HEAD(&ar->peers);
+	init_waitqueue_head(&ar->peer_mapping_wq);
+
+	init_completion(&ar->offchan_tx_completed);
+	INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
+	skb_queue_head_init(&ar->offchan_tx_queue);
+
+	INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
+	skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
+
+	INIT_WORK(&ar->register_work, ath10k_core_register_work);
+	INIT_WORK(&ar->restart_work, ath10k_core_restart);
+
+	return ar;
+
+err_wq:
+	ath10k_mac_destroy(ar);
+	return NULL;
+}
+EXPORT_SYMBOL(ath10k_core_create);
+
+void ath10k_core_destroy(struct ath10k *ar)
+{
+	flush_workqueue(ar->workqueue);
+	destroy_workqueue(ar->workqueue);
+
+	ath10k_mac_destroy(ar);
+}
+EXPORT_SYMBOL(ath10k_core_destroy);
 
 MODULE_AUTHOR("Qualcomm Atheros");
 MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");

drivers/net/wireless/ath/ath10k/core.h

···
 	/* Indicates that ath10k device is during CAC phase of DFS */
 	ATH10K_CAC_RUNNING,
 	ATH10K_FLAG_FIRST_BOOT_DONE,
+	ATH10K_FLAG_CORE_REGISTERED,
 };
 
 struct ath10k {
···
 	bool radar_enabled;
 	int num_started_vdevs;
 
+	/* Protected by conf-mutex */
+	u8 supp_tx_chainmask;
+	u8 supp_rx_chainmask;
+	u8 cfg_tx_chainmask;
+	u8 cfg_rx_chainmask;
+
 	struct wmi_pdev_set_wmm_params_arg wmm_params;
 	struct completion install_key_done;
 
···
 
 	enum ath10k_state state;
 
+	struct work_struct register_work;
 	struct work_struct restart_work;
 
 	/* cycle count is reported twice for each visited channel during scan.

drivers/net/wireless/ath/ath10k/htc.c

···
 	return 0;
 }
 
-/*
- * stop HTC communications, i.e. stop interrupt reception, and flush all
- * queued buffers
- */
 void ath10k_htc_stop(struct ath10k_htc *htc)
 {
 	spin_lock_bh(&htc->tx_lock);
 	htc->stopped = true;
 	spin_unlock_bh(&htc->tx_lock);
-
-	ath10k_hif_stop(htc->ar);
 }
 
 /* registered target arrival callback from the HIF layer */

drivers/net/wireless/ath/ath10k/htt.c

···
 #include "core.h"
 #include "debug.h"
 
-static int ath10k_htt_htc_attach(struct ath10k_htt *htt)
+int ath10k_htt_connect(struct ath10k_htt *htt)
 {
 	struct ath10k_htc_svc_conn_req conn_req;
 	struct ath10k_htc_svc_conn_resp conn_resp;
···
 	return 0;
 }
 
-int ath10k_htt_attach(struct ath10k *ar)
+int ath10k_htt_init(struct ath10k *ar)
 {
 	struct ath10k_htt *htt = &ar->htt;
-	int ret;
 
 	htt->ar = ar;
 	htt->max_throughput_mbps = 800;
-
-	/*
-	 * Connect to HTC service.
-	 * This has to be done before calling ath10k_htt_rx_attach,
-	 * since ath10k_htt_rx_attach involves sending a rx ring configure
-	 * message to the target.
-	 */
-	ret = ath10k_htt_htc_attach(htt);
-	if (ret) {
-		ath10k_err("could not attach htt htc (%d)\n", ret);
-		goto err_htc_attach;
-	}
-
-	ret = ath10k_htt_tx_attach(htt);
-	if (ret) {
-		ath10k_err("could not attach htt tx (%d)\n", ret);
-		goto err_htc_attach;
-	}
-
-	ret = ath10k_htt_rx_attach(htt);
-	if (ret) {
-		ath10k_err("could not attach htt rx (%d)\n", ret);
-		goto err_rx_attach;
-	}
 
 	/*
 	 * Prefetch enough data to satisfy target
···
 		2; /* ip4 dscp or ip6 priority */
 
 	return 0;
-
-err_rx_attach:
-	ath10k_htt_tx_detach(htt);
-err_htc_attach:
-	return ret;
 }
 
 #define HTT_TARGET_VERSION_TIMEOUT_HZ (3*HZ)
···
 	return 0;
 }
 
-int ath10k_htt_attach_target(struct ath10k_htt *htt)
+int ath10k_htt_setup(struct ath10k_htt *htt)
 {
 	int status;
 
···
 		return status;
 
 	return ath10k_htt_send_rx_ring_cfg_ll(htt);
-}
-
-void ath10k_htt_detach(struct ath10k_htt *htt)
-{
-	ath10k_htt_rx_detach(htt);
-	ath10k_htt_tx_detach(htt);
 }

drivers/net/wireless/ath/ath10k/htt.h

···
 #define HTT_LOG2_MAX_CACHE_LINE_SIZE 7	/* 2^7 = 128 */
 #define HTT_MAX_CACHE_LINE_SIZE_MASK ((1 << HTT_LOG2_MAX_CACHE_LINE_SIZE) - 1)
 
-int ath10k_htt_attach(struct ath10k *ar);
-int ath10k_htt_attach_target(struct ath10k_htt *htt);
-void ath10k_htt_detach(struct ath10k_htt *htt);
+int ath10k_htt_connect(struct ath10k_htt *htt);
+int ath10k_htt_init(struct ath10k *ar);
+int ath10k_htt_setup(struct ath10k_htt *htt);
 
-int ath10k_htt_tx_attach(struct ath10k_htt *htt);
-void ath10k_htt_tx_detach(struct ath10k_htt *htt);
-int ath10k_htt_rx_attach(struct ath10k_htt *htt);
-void ath10k_htt_rx_detach(struct ath10k_htt *htt);
+int ath10k_htt_tx_alloc(struct ath10k_htt *htt);
+void ath10k_htt_tx_free(struct ath10k_htt *htt);
+
+int ath10k_htt_rx_alloc(struct ath10k_htt *htt);
+void ath10k_htt_rx_free(struct ath10k_htt *htt);
+
 void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb);
 void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb);
 int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt);

drivers/net/wireless/ath/ath10k/htt_rx.c

···
 	ath10k_htt_rx_msdu_buff_replenish(htt);
 }
 
-void ath10k_htt_rx_detach(struct ath10k_htt *htt)
+static void ath10k_htt_rx_ring_clean_up(struct ath10k_htt *htt)
 {
-	int sw_rd_idx = htt->rx_ring.sw_rd_idx.msdu_payld;
+	struct sk_buff *skb;
+	int i;
 
+	for (i = 0; i < htt->rx_ring.size; i++) {
+		skb = htt->rx_ring.netbufs_ring[i];
+		if (!skb)
+			continue;
+
+		dma_unmap_single(htt->ar->dev, ATH10K_SKB_CB(skb)->paddr,
+				 skb->len + skb_tailroom(skb),
+				 DMA_FROM_DEVICE);
+		dev_kfree_skb_any(skb);
+		htt->rx_ring.netbufs_ring[i] = NULL;
+	}
+}
+
+void ath10k_htt_rx_free(struct ath10k_htt *htt)
+{
 	del_timer_sync(&htt->rx_ring.refill_retry_timer);
 	tasklet_kill(&htt->rx_replenish_task);
 	tasklet_kill(&htt->txrx_compl_task);
···
 	skb_queue_purge(&htt->tx_compl_q);
 	skb_queue_purge(&htt->rx_compl_q);
 
-	while (sw_rd_idx != __le32_to_cpu(*(htt->rx_ring.alloc_idx.vaddr))) {
-		struct sk_buff *skb =
-				htt->rx_ring.netbufs_ring[sw_rd_idx];
-		struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
-
-		dma_unmap_single(htt->ar->dev, cb->paddr,
-				 skb->len + skb_tailroom(skb),
-				 DMA_FROM_DEVICE);
-		dev_kfree_skb_any(htt->rx_ring.netbufs_ring[sw_rd_idx]);
-		sw_rd_idx++;
-		sw_rd_idx &= htt->rx_ring.size_mask;
-	}
+	ath10k_htt_rx_ring_clean_up(htt);
 
 	dma_free_coherent(htt->ar->dev,
 			  (htt->rx_ring.size *
···
 
 	idx = htt->rx_ring.sw_rd_idx.msdu_payld;
 	msdu = htt->rx_ring.netbufs_ring[idx];
+	htt->rx_ring.netbufs_ring[idx] = NULL;
 
 	idx++;
 	idx &= htt->rx_ring.size_mask;
···
 	int msdu_len, msdu_chaining = 0;
 	struct sk_buff *msdu;
 	struct htt_rx_desc *rx_desc;
+	bool corrupted = false;
 
 	lockdep_assert_held(&htt->rx_ring.lock);
 
···
 		msdu_len = MS(__le32_to_cpu(rx_desc->msdu_start.info0),
 			      RX_MSDU_START_INFO0_MSDU_LENGTH);
 		msdu_chained = rx_desc->frag_info.ring2_more_count;
-		msdu_chaining = msdu_chained;
 
 		if (msdu_len_invalid)
 			msdu_len = 0;
···
 
 			msdu->next = next;
 			msdu = next;
+			msdu_chaining = 1;
 		}
 
 		last_msdu = __le32_to_cpu(rx_desc->msdu_end.info0) &
 				RX_MSDU_END_INFO0_LAST_MSDU;
+
+		if (msdu_chaining && !last_msdu)
+			corrupted = true;
 
 		if (last_msdu) {
 			msdu->next = NULL;
···
 
 	if (*head_msdu == NULL)
 		msdu_chaining = -1;
+
+	/*
+	 * Apparently FW sometimes reports weird chained MSDU sequences with
+	 * more than one rx descriptor. This seems like a bug but needs more
+	 * analyzing. For the time being fix it by dropping such sequences to
+	 * avoid blowing up the host system.
+	 */
+	if (corrupted) {
+		ath10k_warn("failed to pop chained msdus, dropping\n");
+		ath10k_htt_rx_free_msdu_chain(*head_msdu);
+		*head_msdu = NULL;
+		*tail_msdu = NULL;
+		msdu_chaining = -EINVAL;
+	}
 
 	/*
 	 * Don't refill the ring yet.
···
 	ath10k_htt_rx_msdu_buff_replenish(htt);
 }
 
-int ath10k_htt_rx_attach(struct ath10k_htt *htt)
+int ath10k_htt_rx_alloc(struct ath10k_htt *htt)
 {
 	dma_addr_t paddr;
 	void *vaddr;
···
 	htt->rx_ring.fill_level = ath10k_htt_rx_ring_fill_level(htt);
 
 	htt->rx_ring.netbufs_ring =
-		kmalloc(htt->rx_ring.size * sizeof(struct sk_buff *),
+		kzalloc(htt->rx_ring.size * sizeof(struct sk_buff *),
 			GFP_KERNEL);
 	if (!htt->rx_ring.netbufs_ring)
 		goto err_netbuf;
···
 static void ath10k_htt_rx_h_protected(struct ath10k_htt *htt,
 				      struct ieee80211_rx_status *rx_status,
 				      struct sk_buff *skb,
-				      enum htt_rx_mpdu_encrypt_type enctype)
+				      enum htt_rx_mpdu_encrypt_type enctype,
+				      enum rx_msdu_decap_format fmt,
+				      bool dot11frag)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 
+	rx_status->flag &= ~(RX_FLAG_DECRYPTED |
+			     RX_FLAG_IV_STRIPPED |
+			     RX_FLAG_MMIC_STRIPPED);
 
-	if (enctype == HTT_RX_MPDU_ENCRYPT_NONE) {
-		rx_status->flag &= ~(RX_FLAG_DECRYPTED |
-				     RX_FLAG_IV_STRIPPED |
-				     RX_FLAG_MMIC_STRIPPED);
+	if (enctype == HTT_RX_MPDU_ENCRYPT_NONE)
 		return;
-	}
+
+	/*
+	 * There's no explicit rx descriptor flag to indicate whether a given
+	 * frame has been decrypted or not. We're forced to use the decap
+	 * format as an implicit indication. However fragmentation rx is always
+	 * raw and it probably never reports undecrypted raws.
+	 *
+	 * This makes sure sniffed frames are reported as-is without stripping
+	 * the protected flag.
+	 */
+	if (fmt == RX_MSDU_DECAP_RAW && !dot11frag)
+		return;
 
 	rx_status->flag |= RX_FLAG_DECRYPTED |
 			   RX_FLAG_IV_STRIPPED |
···
 		}
 
 		skb_in = skb;
-		ath10k_htt_rx_h_protected(htt, rx_status, skb_in, enctype);
+		ath10k_htt_rx_h_protected(htt, rx_status, skb_in, enctype, fmt,
+					  false);
 		skb = skb->next;
 		skb_in->next = NULL;
 
···
 		break;
 	}
 
-	ath10k_htt_rx_h_protected(htt, rx_status, skb, enctype);
+	ath10k_htt_rx_h_protected(htt, rx_status, skb, enctype, fmt, false);
 
 	ath10k_process_rx(htt->ar, rx_status, skb);
 }
···
 	}
 
 	/* FIXME: implement signal strength */
+	rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL;
 
 	hdr = (struct ieee80211_hdr *)msdu_head->data;
 	rxd = (void *)msdu_head->data - sizeof(*rxd);
···
 
 	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
 		     RX_MPDU_START_INFO0_ENCRYPT_TYPE);
-	ath10k_htt_rx_h_protected(htt, rx_status, msdu_head, enctype);
+	ath10k_htt_rx_h_protected(htt, rx_status, msdu_head, enctype, fmt,
+				  true);
 	msdu_head->ip_summed = ath10k_htt_rx_get_csum_state(msdu_head);
 
 	if (tkip_mic_err)

drivers/net/wireless/ath/ath10k/htt_tx.c

···
 	__clear_bit(msdu_id, htt->used_msdu_ids);
 }
 
-int ath10k_htt_tx_attach(struct ath10k_htt *htt)
+int ath10k_htt_tx_alloc(struct ath10k_htt *htt)
 {
 	spin_lock_init(&htt->tx_lock);
 	init_waitqueue_head(&htt->empty_tx_wq);
···
 	return 0;
 }
 
-static void ath10k_htt_tx_cleanup_pending(struct ath10k_htt *htt)
+static void ath10k_htt_tx_free_pending(struct ath10k_htt *htt)
 {
 	struct htt_tx_done tx_done = {0};
 	int msdu_id;
···
 	spin_unlock_bh(&htt->tx_lock);
 }
 
-void ath10k_htt_tx_detach(struct ath10k_htt *htt)
+void ath10k_htt_tx_free(struct ath10k_htt *htt)
 {
-	ath10k_htt_tx_cleanup_pending(htt);
+	ath10k_htt_tx_free_pending(htt);
 	kfree(htt->pending_tx);
 	kfree(htt->used_msdu_ids);
 	dma_pool_destroy(htt->tx_pool);

drivers/net/wireless/ath/ath10k/mac.c

···
 	switch (key->cipher) {
 	case WLAN_CIPHER_SUITE_CCMP:
 		arg.key_cipher = WMI_CIPHER_AES_CCM;
-		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
+		if (arvif->vdev_type == WMI_VDEV_TYPE_AP)
+			key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
+		else
+			key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
 		arg.key_cipher = WMI_CIPHER_TKIP;
···
 						wep_key_work);
 	int ret, keyidx = arvif->def_wep_key_newidx;
 
+	mutex_lock(&arvif->ar->conf_mutex);
+
+	if (arvif->ar->state != ATH10K_STATE_ON)
+		goto unlock;
+
 	if (arvif->def_wep_key_idx == keyidx)
-		return;
+		goto unlock;
 
 	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d set keyidx %d\n",
 		   arvif->vdev_id, keyidx);
···
 		ath10k_warn("failed to update wep key index for vdev %d: %d\n",
 			    arvif->vdev_id,
 			    ret);
-		return;
+		goto unlock;
 	}
 
 	arvif->def_wep_key_idx = keyidx;
+
+unlock:
+	mutex_unlock(&arvif->ar->conf_mutex);
 }
 
 static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
···
 	ath10k_tx_htt(ar, skb);
 }
 
-/*
- * Initialize various parameters with default vaules.
- */
+/* Must not be called with conf_mutex held as workers can use that also. */
+static void ath10k_drain_tx(struct ath10k *ar)
+{
+	/* make sure rcu-protected mac80211 tx path itself is drained */
+	synchronize_net();
+
+	ath10k_offchan_tx_purge(ar);
+	ath10k_mgmt_over_wmi_tx_purge(ar);
+
+	cancel_work_sync(&ar->offchan_tx_work);
+	cancel_work_sync(&ar->wmi_mgmt_tx_work);
+}
+
 void ath10k_halt(struct ath10k *ar)
 {
 	struct ath10k_vif *arvif;
···
 	}
 
 	del_timer_sync(&ar->scan.timeout);
-	ath10k_offchan_tx_purge(ar);
-	ath10k_mgmt_over_wmi_tx_purge(ar);
+	ath10k_reset_scan((unsigned long)ar);
 	ath10k_peer_cleanup_all(ar);
 	ath10k_core_stop(ar);
 	ath10k_hif_power_down(ar);
 
 	spin_lock_bh(&ar->data_lock);
-	if (ar->scan.in_progress) {
-		del_timer(&ar->scan.timeout);
-		ar->scan.in_progress = false;
-		ieee80211_scan_completed(ar->hw, true);
-	}
-
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (!arvif->beacon)
 			continue;
···
 	spin_unlock_bh(&ar->data_lock);
 }
 
+static int ath10k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
+{
+	struct ath10k *ar = hw->priv;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (ar->cfg_tx_chainmask) {
+		*tx_ant = ar->cfg_tx_chainmask;
+		*rx_ant = ar->cfg_rx_chainmask;
+	} else {
+		*tx_ant = ar->supp_tx_chainmask;
+		*rx_ant = ar->supp_rx_chainmask;
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+
+	return 0;
+}
+
+static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	ar->cfg_tx_chainmask = tx_ant;
+	ar->cfg_rx_chainmask = rx_ant;
+
+	if ((ar->state != ATH10K_STATE_ON) &&
+	    (ar->state != ATH10K_STATE_RESTARTED))
+		return 0;
+
+	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->tx_chain_mask,
+					tx_ant);
+	if (ret) {
+		ath10k_warn("failed to set tx-chainmask: %d, req 0x%x\n",
+			    ret, tx_ant);
+		return ret;
+	}
+
+	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
+					rx_ant);
+	if (ret) {
+		ath10k_warn("failed to set rx-chainmask: %d, req 0x%x\n",
+			    ret, rx_ant);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ath10k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+	ret = __ath10k_set_antenna(ar, tx_ant, rx_ant);
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
 static int ath10k_start(struct ieee80211_hw *hw)
 {
 	struct ath10k *ar = hw->priv;
 	int ret = 0;
 
+	/*
+	 * This makes sense only when restarting hw. It is harmless to call
+	 * uncoditionally. This is necessary to make sure no HTT/WMI tx
+	 * commands will be submitted while restarting.
+	 */
+	ath10k_drain_tx(ar);
+
 	mutex_lock(&ar->conf_mutex);
 
-	if (ar->state != ATH10K_STATE_OFF &&
-	    ar->state != ATH10K_STATE_RESTARTING) {
+	switch (ar->state) {
+	case ATH10K_STATE_OFF:
+		ar->state = ATH10K_STATE_ON;
+		break;
+	case ATH10K_STATE_RESTARTING:
+		ath10k_halt(ar);
+		ar->state = ATH10K_STATE_RESTARTED;
+		break;
+	case ATH10K_STATE_ON:
+	case ATH10K_STATE_RESTARTED:
+	case ATH10K_STATE_WEDGED:
+		WARN_ON(1);
 		ret = -EINVAL;
-		goto exit;
+		goto err;
 	}
 
 	ret = ath10k_hif_power_up(ar);
 	if (ret) {
 		ath10k_err("Could not init hif: %d\n", ret);
-		ar->state = ATH10K_STATE_OFF;
-		goto exit;
+		goto err_off;
 	}
 
 	ret = ath10k_core_start(ar);
 	if (ret) {
 		ath10k_err("Could not init core: %d\n", ret);
-		ath10k_hif_power_down(ar);
-		ar->state = ATH10K_STATE_OFF;
-		goto exit;
+		goto err_power_down;
 	}
 
-	if (ar->state == ATH10K_STATE_OFF)
-		ar->state = ATH10K_STATE_ON;
-	else if (ar->state == ATH10K_STATE_RESTARTING)
-		ar->state = ATH10K_STATE_RESTARTED;
-
 	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pmf_qos, 1);
-	if (ret)
+	if (ret) {
 		ath10k_warn("failed to enable PMF QOS: %d\n", ret);
+		goto err_core_stop;
+	}
 
 	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 1);
-	if (ret)
+	if (ret) {
 		ath10k_warn("failed to enable dynamic BW: %d\n", ret);
+		goto err_core_stop;
+	}
+
+	if (ar->cfg_tx_chainmask)
+		__ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
+				     ar->cfg_rx_chainmask);
 
 	/*
 	 * By default FW set ARP frames ac to voice (6). In that case ARP
···
 	if (ret) {
 		ath10k_warn("failed to set arp ac override parameter: %d\n",
 			    ret);
-		goto exit;
+		goto err_core_stop;
 	}
 
 	ar->num_started_vdevs = 0;
 	ath10k_regd_update(ar);
-	ret = 0;
 
-exit:
+	mutex_unlock(&ar->conf_mutex);
+	return 0;
+
+err_core_stop:
+	ath10k_core_stop(ar);
+
+err_power_down:
+	ath10k_hif_power_down(ar);
+
+err_off:
+	ar->state = ATH10K_STATE_OFF;
+
+err:
 	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }
···
 {
 	struct ath10k *ar = hw->priv;
 
-	mutex_lock(&ar->conf_mutex);
-	if (ar->state == ATH10K_STATE_ON ||
-	    ar->state == ATH10K_STATE_RESTARTED ||
-	    ar->state == ATH10K_STATE_WEDGED)
-		ath10k_halt(ar);
+	ath10k_drain_tx(ar);
 
-	ar->state = ATH10K_STATE_OFF;
+	mutex_lock(&ar->conf_mutex);
+	if (ar->state != ATH10K_STATE_OFF) {
+		ath10k_halt(ar);
+		ar->state = ATH10K_STATE_OFF;
+	}
 	mutex_unlock(&ar->conf_mutex);
 
-	ath10k_mgmt_over_wmi_tx_purge(ar);
-
-	cancel_work_sync(&ar->offchan_tx_work);
-	cancel_work_sync(&ar->wmi_mgmt_tx_work);
 	cancel_work_sync(&ar->restart_work);
 }
 
···
 		arvif->u.ap.hidden_ssid = info->hidden_ssid;
 	}
 
-	if (changed & BSS_CHANGED_BSSID) {
+	/*
+	 * Firmware manages AP self-peer internally so make sure to not create
+	 * it in driver. Otherwise AP self-peer deletion may timeout later.
+	 */
+	if (changed & BSS_CHANGED_BSSID &&
+	    vif->type != NL80211_IFTYPE_AP) {
 		if (!is_zero_ether_addr(info->bssid)) {
 			ath10k_dbg(ATH10K_DBG_MAC,
 				   "mac vdev %d create peer %pM\n",
···
 					   fixed_nss, force_sgi);
 }
 
-static void ath10k_channel_switch_beacon(struct ieee80211_hw *hw,
-					 struct ieee80211_vif *vif,
-					 struct cfg80211_chan_def *chandef)
-{
-	/* there's no need to do anything here. vif->csa_active is enough */
-	return;
-}
-
 static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_sta *sta,
···
 	.set_frag_threshold		= ath10k_set_frag_threshold,
 	.flush				= ath10k_flush,
 	.tx_last_beacon			= ath10k_tx_last_beacon,
+	.set_antenna			= ath10k_set_antenna,
+	.get_antenna			= ath10k_get_antenna,
 	.restart_complete		= ath10k_restart_complete,
 	.get_survey			= ath10k_get_survey,
 	.set_bitrate_mask		= ath10k_set_bitrate_mask,
-	.channel_switch_beacon		= ath10k_channel_switch_beacon,
 	.sta_rc_update			= ath10k_sta_rc_update,
 	.get_tsf			= ath10k_get_tsf,
 #ifdef CONFIG_PM
···
 		BIT(NL80211_IFTYPE_STATION) |
 		BIT(NL80211_IFTYPE_ADHOC) |
 		BIT(NL80211_IFTYPE_AP);
+
+	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
+		/* TODO:  Have to deal with 2x2 chips if/when the come out. */
+		ar->supp_tx_chainmask = TARGET_10X_TX_CHAIN_MASK;
+		ar->supp_rx_chainmask = TARGET_10X_RX_CHAIN_MASK;
+	} else {
+		ar->supp_tx_chainmask = TARGET_TX_CHAIN_MASK;
+		ar->supp_rx_chainmask = TARGET_RX_CHAIN_MASK;
+	}
+
+	ar->hw->wiphy->available_antennas_rx = ar->supp_rx_chainmask;
+	ar->hw->wiphy->available_antennas_tx = ar->supp_tx_chainmask;
 
 	if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->fw_features))
 		ar->hw->wiphy->interface_modes |=

drivers/net/wireless/ath/ath10k/pci.c

···
 
 /* how long wait to wait for target to initialise, in ms */
 #define ATH10K_PCI_TARGET_WAIT 3000
+#define ATH10K_PCI_NUM_WARM_RESET_ATTEMPTS 3
 
 #define QCA988X_2_0_DEVICE_ID	(0x003c)
 
···
 	struct ath10k_pci_pipe *pci_pipe = &ar_pci->pipe_info[pipe_id];
 	struct ath10k_ce_pipe *ce_pipe = pci_pipe->ce_hdl;
 	struct ath10k_ce_ring *src_ring = ce_pipe->src_ring;
-	unsigned int nentries_mask = src_ring->nentries_mask;
-	unsigned int sw_index = src_ring->sw_index;
-	unsigned int write_index = src_ring->write_index;
-	int err, i;
+	unsigned int nentries_mask;
+	unsigned int sw_index;
+	unsigned int write_index;
+	int err, i = 0;
 
 	spin_lock_bh(&ar_pci->ce_lock);
+
+	nentries_mask = src_ring->nentries_mask;
+	sw_index = src_ring->sw_index;
+	write_index = src_ring->write_index;
 
 	if (unlikely(CE_RING_DELTA(nentries_mask,
 				   write_index, sw_index - 1) < n_items)) {
 		err = -ENOBUFS;
-		goto unlock;
+		goto err;
 	}
 
 	for (i = 0; i < n_items - 1; i++) {
···
 					    items[i].transfer_id,
 					    CE_SEND_FLAG_GATHER);
 		if (err)
-			goto unlock;
+			goto err;
 	}
 
 	/* `i` is equal to `n_items -1` after for() */
···
 				    items[i].transfer_id,
 				    0);
 	if (err)
-		goto unlock;
+		goto err;
 
-	err = 0;
-unlock:
+	spin_unlock_bh(&ar_pci->ce_lock);
+	return 0;
+
+err:
+	for (; i > 0; i--)
+		__ath10k_ce_send_revert(ce_pipe);
+
 	spin_unlock_bh(&ar_pci->ce_lock);
 	return err;
 }
···
 	int ret;
 
 	ath10k_dbg(ATH10K_DBG_BOOT, "boot hif stop\n");
+
+	if (WARN_ON(!ar_pci->started))
+		return;
 
 	ret = ath10k_ce_disable_interrupts(ar);
 	if (ret)
···
 	ath10k_pci_sleep(ar);
 }
 
+/* this function effectively clears target memory controller assert line */
+static void ath10k_pci_warm_reset_si0(struct ath10k *ar)
+{
+	u32 val;
+
+	val = ath10k_pci_soc_read32(ar, SOC_RESET_CONTROL_ADDRESS);
+	ath10k_pci_soc_write32(ar, SOC_RESET_CONTROL_ADDRESS,
+			       val | SOC_RESET_CONTROL_SI0_RST_MASK);
+	val = ath10k_pci_soc_read32(ar, SOC_RESET_CONTROL_ADDRESS);
+
+	msleep(10);
+
+	val = ath10k_pci_soc_read32(ar, SOC_RESET_CONTROL_ADDRESS);
+	ath10k_pci_soc_write32(ar, SOC_RESET_CONTROL_ADDRESS,
+			       val & ~SOC_RESET_CONTROL_SI0_RST_MASK);
+	val = ath10k_pci_soc_read32(ar, SOC_RESET_CONTROL_ADDRESS);
+
+	msleep(10);
+}
+
 static int ath10k_pci_warm_reset(struct ath10k *ar)
 {
 	int ret = 0;
···
 	val = ath10k_pci_read32(ar, RTC_SOC_BASE_ADDRESS +
 				SOC_RESET_CONTROL_ADDRESS);
 	msleep(10);
+
+	ath10k_pci_warm_reset_si0(ar);
 
 	/* debug */
 	val = ath10k_pci_read32(ar, SOC_CORE_BASE_ADDRESS +
···
 	return ret;
 }
 
+static int ath10k_pci_hif_power_up_warm(struct ath10k *ar)
+{
+	int i, ret;
+
+	/*
+	 * Sometime warm reset succeeds after retries.
+	 *
+	 * FIXME: It might be possible to tune ath10k_pci_warm_reset() to work
+	 * at first try.
+	 */
+	for (i = 0; i < ATH10K_PCI_NUM_WARM_RESET_ATTEMPTS; i++) {
+		ret = __ath10k_pci_hif_power_up(ar, false);
+		if (ret == 0)
+			break;
+
+		ath10k_warn("failed to warm reset (attempt %d out of %d): %d\n",
+			    i + 1, ATH10K_PCI_NUM_WARM_RESET_ATTEMPTS, ret);
+	}
+
+	return ret;
+}
+
 static int ath10k_pci_hif_power_up(struct ath10k *ar)
 {
 	int ret;
···
 	 * preferred (and safer) way to perform a device reset is through a
 	 * warm reset.
 	 *
-	 * Warm reset doesn't always work though (notably after a firmware
-	 * crash) so fall back to cold reset if necessary.
+	 * Warm reset doesn't always work though so fall back to cold reset may
+	 * be necessary.
 	 */
-	ret = __ath10k_pci_hif_power_up(ar, false);
+	ret = ath10k_pci_hif_power_up_warm(ar);
 	if (ret) {
 		ath10k_warn("failed to power up target using warm reset: %d\n",
 			    ret);
···
 	if (fw_ind & FW_IND_EVENT_PENDING) {
 		ath10k_pci_write32(ar, FW_INDICATOR_ADDRESS,
 				   fw_ind & ~FW_IND_EVENT_PENDING);
-
-		/* Some structures are unavailable during early boot or at
-		 * driver teardown so just print that the device has crashed. */
-		ath10k_warn("device crashed - no diagnostics available\n");
+		ath10k_pci_hif_dump_area(ar);
 	}
 
 	ath10k_pci_sleep(ar);
···
 
 	if (val & FW_IND_EVENT_PENDING) {
 		ath10k_warn("device has crashed during init\n");
+		ath10k_pci_write32(ar, FW_INDICATOR_ADDRESS,
+				   val & ~FW_IND_EVENT_PENDING);
+		ath10k_pci_hif_dump_area(ar);
 		ret = -ECOMM;
 		goto out;
 	}
···
 
 	pci_set_drvdata(pdev, ar);
 
-	/*
-	 * Without any knowledge of the Host, the Target may have been reset or
-	 * power cycled and its Config Space may no longer reflect the PCI
-	 * address space that was assigned earlier by the PCI infrastructure.
-	 * Refresh it now.
-	 */
-	ret = pci_assign_resource(pdev, BAR_NUM);
-	if (ret) {
-		ath10k_err("failed to assign PCI space: %d\n", ret);
-		goto err_ar;
-	}
-
 	ret = pci_enable_device(pdev);
 	if (ret) {
 		ath10k_err("failed to enable PCI device: %d\n", ret);
···
 
 	if (!ar_pci)
 		return;
-
-	tasklet_kill(&ar_pci->msi_fw_err);
 
 	ath10k_core_unregister(ar);
 	ath10k_pci_free_ce(ar);

drivers/net/wireless/ath/ath10k/wmi.c

···
 	struct sk_buff *wmi_skb;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	int len;
+	u32 buf_len = skb->len;
 	u16 fc;
 
 	hdr = (struct ieee80211_hdr *)skb->data;
···
 		return -EINVAL;
 
 	len = sizeof(cmd->hdr) + skb->len;
+
+	if ((ieee80211_is_action(hdr->frame_control) ||
+	     ieee80211_is_deauth(hdr->frame_control) ||
+	     ieee80211_is_disassoc(hdr->frame_control)) &&
+	     ieee80211_has_protected(hdr->frame_control)) {
+		len += IEEE80211_CCMP_MIC_LEN;
+		buf_len += IEEE80211_CCMP_MIC_LEN;
+	}
+
 	len = round_up(len, 4);
 
 	wmi_skb = ath10k_wmi_alloc_skb(len);
···
 	cmd->hdr.vdev_id = __cpu_to_le32(ATH10K_SKB_CB(skb)->vdev_id);
 	cmd->hdr.tx_rate = 0;
 	cmd->hdr.tx_power = 0;
-	cmd->hdr.buf_len = __cpu_to_le32((u32)(skb->len));
+	cmd->hdr.buf_len = __cpu_to_le32(buf_len);
 
 	memcpy(cmd->hdr.peer_macaddr.addr, ieee80211_get_DA(hdr), ETH_ALEN);
 	memcpy(cmd->buf, skb->data, skb->len);
···
 	 * frames with Protected Bit set. */
 	if (ieee80211_has_protected(hdr->frame_control) &&
 	    !ieee80211_is_auth(hdr->frame_control)) {
-		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
-				RX_FLAG_MMIC_STRIPPED;
-		hdr->frame_control = __cpu_to_le16(fc &
+		status->flag |= RX_FLAG_DECRYPTED;
+
+		if (!ieee80211_is_action(hdr->frame_control) &&
+		    !ieee80211_is_deauth(hdr->frame_control) &&
+		    !ieee80211_is_disassoc(hdr->frame_control)) {
+			status->flag |= RX_FLAG_IV_STRIPPED |
+					RX_FLAG_MMIC_STRIPPED;
+			hdr->frame_control = __cpu_to_le16(fc &
 					~IEEE80211_FCTL_PROTECTED);
+		}
 	}
 
 	ath10k_dbg(ATH10K_DBG_MGMT,
···
 	ar->wmi.num_mem_chunks = 0;
 }
 
-int ath10k_wmi_connect_htc_service(struct ath10k *ar)
+int ath10k_wmi_connect(struct ath10k *ar)
 {
 	int status;
 	struct ath10k_htc_svc_conn_req conn_req;

drivers/net/wireless/ath/ath10k/wmi.h

···
 #define WMI_PDEV_PARAM_UNSUPPORTED 0
 
 enum wmi_pdev_param {
-	/* TX chian mask */
+	/* TX chain mask */
 	WMI_PDEV_PARAM_TX_CHAIN_MASK = 0x1,
-	/* RX chian mask */
+	/* RX chain mask */
 	WMI_PDEV_PARAM_RX_CHAIN_MASK,
 	/* TX power limit for 2G Radio */
 	WMI_PDEV_PARAM_TXPOWER_LIMIT2G,
···
 int ath10k_wmi_wait_for_service_ready(struct ath10k *ar);
 int ath10k_wmi_wait_for_unified_ready(struct ath10k *ar);
 
-int ath10k_wmi_connect_htc_service(struct ath10k *ar);
+int ath10k_wmi_connect(struct ath10k *ar);
 int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
 				const struct wmi_channel_arg *);
 int ath10k_wmi_pdev_suspend_target(struct ath10k *ar, u32 suspend_opt);

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

···
 	struct ath_ant_comb ant_comb;
 	u8 ant_tx, ant_rx;
 	struct dfs_pattern_detector *dfs_detector;
+	u64 dfs_prev_pulse_ts;
 	u32 wow_enabled;
 	/* relay(fs) channel for spectral scan */
 	struct rchan *rfs_chan_spec_scan;

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

···
 	pe.ts = mactime;
 	if (ath9k_postprocess_radar_event(sc, &ard, &pe)) {
 		struct dfs_pattern_detector *pd = sc->dfs_detector;
-#ifdef CONFIG_ATH9K_DEBUGFS
 		ath_dbg(common, DFS,
 			"ath9k_dfs_process_phyerr: channel=%d, ts=%llu, "
 			"width=%d, rssi=%d, delta_ts=%llu\n",
 			pe.freq, pe.ts, pe.width, pe.rssi,
-			pe.ts - sc->debug.stats.dfs_stats.last_ts);
-		sc->debug.stats.dfs_stats.last_ts = pe.ts;
-#endif
+			pe.ts - sc->dfs_prev_pulse_ts);
+		sc->dfs_prev_pulse_ts = pe.ts;
 		DFS_STAT_INC(sc, pulses_processed);
 		if (pd != NULL && pd->add_pulse(pd, &pe)) {
 			DFS_STAT_INC(sc, radar_detected);

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

···
 	/* pattern detection stats */
 	u32 pulses_processed;
 	u32 radar_detected;
-	u64 last_ts;
 };
 
 #if defined(CONFIG_ATH9K_DFS_DEBUGFS)

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

···
 module_param_named(ps_enable, ath9k_ps_enable, int, 0444);
 MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave");
 
+static int ath9k_use_chanctx;
+module_param_named(use_chanctx, ath9k_use_chanctx, int, 0444);
+MODULE_PARM_DESC(use_chanctx, "Enable channel context for concurrency");
+
 bool is_ath9k_unloaded;
 
 #ifdef CONFIG_MAC80211_LEDS
···
 }
 
 static const struct ieee80211_iface_limit if_limits[] = {
-	{ .max = 2048,	.types = BIT(NL80211_IFTYPE_STATION) |
-				 BIT(NL80211_IFTYPE_WDS) },
+	{ .max = 2048,	.types = BIT(NL80211_IFTYPE_STATION) },
 	{ .max = 8,	.types =
 #ifdef CONFIG_MAC80211_MESH
 				 BIT(NL80211_IFTYPE_MESH_POINT) |
···
 				 BIT(NL80211_IFTYPE_AP) },
 	{ .max = 1,	.types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
 				 BIT(NL80211_IFTYPE_P2P_GO) },
+};
+
+static const struct ieee80211_iface_limit wds_limits[] = {
+	{ .max = 2048,	.types = BIT(NL80211_IFTYPE_WDS) },
 };
 
 static const struct ieee80211_iface_limit if_dfs_limits[] = {
···
 	{
 		.limits = if_limits,
 		.n_limits = ARRAY_SIZE(if_limits),
+		.max_interfaces = 2048,
+		.num_different_channels = 1,
+		.beacon_int_infra_match = true,
+	},
+	{
+		.limits = wds_limits,
+		.n_limits = ARRAY_SIZE(wds_limits),
 		.max_interfaces = 2048,
 		.num_different_channels = 1,
 		.beacon_int_infra_match = true,
···
 			BIT(NL80211_IFTYPE_P2P_GO) |
 			BIT(NL80211_IFTYPE_P2P_CLIENT) |
 			BIT(NL80211_IFTYPE_AP) |
-			BIT(NL80211_IFTYPE_WDS) |
 			BIT(NL80211_IFTYPE_STATION) |
 			BIT(NL80211_IFTYPE_ADHOC) |
 			BIT(NL80211_IFTYPE_MESH_POINT);
 		hw->wiphy->iface_combinations = if_comb;
-		hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
+		if (!ath9k_use_chanctx) {
+			hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
+			hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_WDS);
+		} else
+			hw->wiphy->n_iface_combinations = 1;
 	}
 
 	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;

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

···
 void ath9k_update_p2p_ps(struct ath_softc *sc, struct ieee80211_vif *vif)
 {
 	struct ath_vif *avp = (void *)vif->drv_priv;
-	unsigned long flags;
 	u32 tsf;
 
 	if (!sc->p2p_ps_timer)
···
 		return;
 
 	sc->p2p_ps_vif = avp;
-
-	spin_lock_irqsave(&sc->sc_pm_lock, flags);
-	if (!(sc->ps_flags & PS_BEACON_SYNC)) {
-		tsf = ath9k_hw_gettsf32(sc->sc_ah);
-		ieee80211_parse_p2p_noa(&vif->bss_conf.p2p_noa_attr, &avp->noa, tsf);
-		ath9k_update_p2p_ps_timer(sc, avp);
-	}
-	spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
+	tsf = ath9k_hw_gettsf32(sc->sc_ah);
+	ieee80211_parse_p2p_noa(&vif->bss_conf.p2p_noa_attr, &avp->noa, tsf);
+	ath9k_update_p2p_ps_timer(sc, avp);
 }
 
 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
···
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_vif *avp = (void *)vif->drv_priv;
+	unsigned long flags;
 	int slottime;
 
 	ath9k_ps_wakeup(sc);
···
 
 	if (changed & BSS_CHANGED_P2P_PS) {
 		spin_lock_bh(&sc->sc_pcu_lock);
-		ath9k_update_p2p_ps(sc, vif);
+		spin_lock_irqsave(&sc->sc_pm_lock, flags);
+		if (!(sc->ps_flags & PS_BEACON_SYNC))
+			ath9k_update_p2p_ps(sc, vif);
+		spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
 		spin_unlock_bh(&sc->sc_pcu_lock);
 	}
 
···
 	clear_bit(ATH_OP_SCANNING, &common->op_flags);
 }
 
-static void ath9k_channel_switch_beacon(struct ieee80211_hw *hw,
-					struct ieee80211_vif *vif,
-					struct cfg80211_chan_def *chandef)
-{
-	/* depend on vif->csa_active only */
-	return;
-}
-
 struct ieee80211_ops ath9k_ops = {
 	.tx 		    = ath9k_tx,
 	.start 		    = ath9k_start,
···
 #endif
 	.sw_scan_start	    = ath9k_sw_scan_start,
 	.sw_scan_complete   = ath9k_sw_scan_complete,
-	.channel_switch_beacon     = ath9k_channel_switch_beacon,
 };

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

···
  * buffer (or rx fifo). This can incorrectly acknowledge packets
  * to a sender if last desc is self-linked.
  */
-static void ath_rx_buf_link(struct ath_softc *sc, struct ath_rxbuf *bf)
+static void ath_rx_buf_link(struct ath_softc *sc, struct ath_rxbuf *bf,
+			    bool flush)
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
···
 			     common->rx_bufsize,
 			     0);
 
-	if (sc->rx.rxlink == NULL)
-		ath9k_hw_putrxbuf(ah, bf->bf_daddr);
-	else
+	if (sc->rx.rxlink)
 		*sc->rx.rxlink = bf->bf_daddr;
+	else if (!flush)
+		ath9k_hw_putrxbuf(ah, bf->bf_daddr);
 
 	sc->rx.rxlink = &ds->ds_link;
 }
 
-static void ath_rx_buf_relink(struct ath_softc *sc, struct ath_rxbuf *bf)
+static void ath_rx_buf_relink(struct ath_softc *sc, struct ath_rxbuf *bf,
+			      bool flush)
 {
 	if (sc->rx.buf_hold)
-		ath_rx_buf_link(sc, sc->rx.buf_hold);
+		ath_rx_buf_link(sc, sc->rx.buf_hold, flush);
 
 	sc->rx.buf_hold = bf;
 }
···
 	sc->rx.buf_hold = NULL;
 	sc->rx.rxlink = NULL;
 	list_for_each_entry_safe(bf, tbf, &sc->rx.rxbuf, list) {
-		ath_rx_buf_link(sc, bf);
+		ath_rx_buf_link(sc, bf, false);
 	}
 
 	/* We could have deleted elements so the list may be empty now */
···
 requeue:
 		list_add_tail(&bf->list, &sc->rx.rxbuf);
 
-		if (edma) {
-			ath_rx_edma_buf_link(sc, qtype);
-		} else {
-			ath_rx_buf_relink(sc, bf);
+		if (!edma) {
+			ath_rx_buf_relink(sc, bf, flush);
 			if (!flush)
 				ath9k_hw_rxena(ah);
+		} else if (!flush) {
+			ath_rx_edma_buf_link(sc, qtype);
 		}
 
 		if (!budget--)

drivers/net/wireless/ath/wcn36xx/smd.c

···
 		if (!msg_ind)
 			goto nomem;
 		msg_ind->msg_len = len;
-		msg_ind->msg = kmalloc(len, GFP_KERNEL);
+		msg_ind->msg = kmemdup(buf, len, GFP_KERNEL);
 		if (!msg_ind->msg) {
 			kfree(msg_ind);
 nomem:
···
 				    msg_header->msg_type);
 			break;
 		}
-		memcpy(msg_ind->msg, buf, len);
 		mutex_lock(&wcn->hal_ind_mutex);
 		list_add_tail(&msg_ind->list, &wcn->hal_ind_queue);
 		queue_work(wcn->hal_ind_wq, &wcn->hal_ind_work);

drivers/net/wireless/ath/wil6210/cfg80211.c

···
 	}
 
 	wil->scan_request = request;
+	mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
 
 	memset(&cmd, 0, sizeof(cmd));
 	cmd.cmd.num_channels = 0;

drivers/net/wireless/ath/wil6210/debugfs.c

···
 	void __iomem *x = wmi_addr(wil, vring->hwtail);
 
 	seq_printf(s, "VRING %s = {\n", name);
-	seq_printf(s, "  pa     = 0x%016llx\n", (unsigned long long)vring->pa);
+	seq_printf(s, "  pa     = %pad\n", &vring->pa);
 	seq_printf(s, "  va     = 0x%p\n", vring->va);
 	seq_printf(s, "  size   = %d\n", vring->size);
 	seq_printf(s, "  swtail = %d\n", vring->swtail);
···
 			   u[0], u[1], u[2], u[3]);
 		seq_printf(s, "  DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
 			   u[4], u[5], u[6], u[7]);
-		seq_printf(s, "  SKB = %p\n", skb);
+		seq_printf(s, "  SKB = 0x%p\n", skb);
 
 		if (skb) {
 			skb_get(skb);

drivers/net/wireless/ath/wil6210/main.c

···
 	schedule_work(&wil->disconnect_worker);
 }
 
+static void wil_scan_timer_fn(ulong x)
+{
+	struct wil6210_priv *wil = (void *)x;
+
+	clear_bit(wil_status_fwready, &wil->status);
+	wil_err(wil, "Scan timeout detected, start fw error recovery\n");
+	schedule_work(&wil->fw_error_worker);
+}
+
 static void wil_fw_error_worker(struct work_struct *work)
 {
 	struct wil6210_priv *wil = container_of(work,
···
 	if (no_fw_recovery)
 		return;
 
+	/* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO
+	 * passed since last recovery attempt
+	 */
+	if (time_is_after_jiffies(wil->last_fw_recovery +
+				  WIL6210_FW_RECOVERY_TO))
+		wil->recovery_count++;
+	else
+		wil->recovery_count = 1; /* fw was alive for a long time */
+
+	if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) {
+		wil_err(wil, "too many recovery attempts (%d), giving up\n",
+			wil->recovery_count);
+		return;
+	}
+
+	wil->last_fw_recovery = jiffies;
+
 	mutex_lock(&wil->mutex);
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_MONITOR:
-		wil_info(wil, "fw error recovery started...\n");
+		wil_info(wil, "fw error recovery started (try %d)...\n",
+			 wil->recovery_count);
 		wil_reset(wil);
 
 		/* need to re-allocate Rx ring after reset */
···
 
 	wil->pending_connect_cid = -1;
 	setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil);
+	setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil);
 
 	INIT_WORK(&wil->connect_worker, wil_connect_worker);
 	INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker);
···
 		return -EAGAIN;
 	}
 
+	wil->last_fw_recovery = jiffies;
+
 	return 0;
 }
 
···
 
 void wil_priv_deinit(struct wil6210_priv *wil)
 {
+	del_timer_sync(&wil->scan_timer);
 	cancel_work_sync(&wil->disconnect_worker);
 	cancel_work_sync(&wil->fw_error_worker);
 	mutex_lock(&wil->mutex);
···
 	if (wil->scan_request) {
 		wil_dbg_misc(wil, "Abort scan_request 0x%p\n",
 			     wil->scan_request);
+		del_timer_sync(&wil->scan_timer);
 		cfg80211_scan_done(wil->scan_request, true);
 		wil->scan_request = NULL;
 	}
···
 	napi_disable(&wil->napi_tx);
 
 	if (wil->scan_request) {
+		del_timer_sync(&wil->scan_timer);
 		cfg80211_scan_done(wil->scan_request, true);
 		wil->scan_request = NULL;
 	}

drivers/net/wireless/ath/wil6210/netdev.c

···
 	return wil_down(wil);
 }
 
+static int wil_change_mtu(struct net_device *ndev, int new_mtu)
+{
+	struct wil6210_priv *wil = ndev_to_wil(ndev);
+
+	if (new_mtu < 68 || new_mtu > IEEE80211_MAX_DATA_LEN_DMG)
+		return -EINVAL;
+
+	wil_dbg_misc(wil, "change MTU %d -> %d\n", ndev->mtu, new_mtu);
+	ndev->mtu = new_mtu;
+
+	return 0;
+}
+
 static const struct net_device_ops wil_netdev_ops = {
 	.ndo_open		= wil_open,
 	.ndo_stop		= wil_stop,
 	.ndo_start_xmit		= wil_start_xmit,
 	.ndo_set_mac_address	= eth_mac_addr,
 	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_change_mtu		= wil_change_mtu,
 };
 
 static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget)

drivers/net/wireless/ath/wil6210/pcie_bus.c

···
 		goto err_release_reg;
 	}
 	/* rollback to err_iounmap */
-	dev_info(&pdev->dev, "CSR at %pR -> %p\n", &pdev->resource[0], csr);
+	dev_info(&pdev->dev, "CSR at %pR -> 0x%p\n", &pdev->resource[0], csr);
 
 	wil = wil_if_alloc(dev, csr);
 	if (IS_ERR(wil)) {

drivers/net/wireless/ath/wil6210/rx_reorder.c

···
 {
 	int index;
 
-	while (seq_less(r->head_seq_num, hseq)) {
+	/* note: this function is never called with
+	 * hseq preceding r->head_seq_num, i.e it is always true
+	 * !seq_less(hseq, r->head_seq_num)
+	 * and thus on loop exit it should be
+	 * r->head_seq_num == hseq
+	 */
+	while (seq_less(r->head_seq_num, hseq) && r->stored_mpdu_num) {
 		index = reorder_index(r, r->head_seq_num);
 		wil_release_reorder_frame(wil, r, index);
 	}
+	r->head_seq_num = hseq;
 }
 
 static void wil_reorder_release(struct wil6210_priv *wil,

drivers/net/wireless/ath/wil6210/txrx.c

···
 	return vring->size - used - 1;
 }
 
+/**
+ * wil_vring_wmark_low - low watermark for available descriptor space
+ */
+static inline int wil_vring_wmark_low(struct vring *vring)
+{
+	return vring->size/8;
+}
+
+/**
+ * wil_vring_wmark_high - high watermark for available descriptor space
+ */
+static inline int wil_vring_wmark_high(struct vring *vring)
+{
+	return vring->size/4;
+}
+
 static int wil_vring_alloc(struct wil6210_priv *wil, struct vring *vring)
 {
 	struct device *dev = wil_to_dev(wil);
···
 		_d->dma.status = TX_DMA_STATUS_DU;
 	}
 
-	wil_dbg_misc(wil, "vring[%d] 0x%p:0x%016llx 0x%p\n", vring->size,
-		     vring->va, (unsigned long long)vring->pa, vring->ctx);
+	wil_dbg_misc(wil, "vring[%d] 0x%p:%pad 0x%p\n", vring->size,
+		     vring->va, &vring->pa, vring->ctx);
 
 	return 0;
 }
···
 	pa = dma_map_single(dev, skb->data,
 			skb_headlen(skb), DMA_TO_DEVICE);
 
-	wil_dbg_txrx(wil, "Tx skb %d bytes %p -> %#08llx\n", skb_headlen(skb),
-		     skb->data, (unsigned long long)pa);
+	wil_dbg_txrx(wil, "Tx skb %d bytes 0x%p -> %pad\n", skb_headlen(skb),
+		     skb->data, &pa);
 	wil_hex_dump_txrx("Tx ", DUMP_PREFIX_OFFSET, 16, 1,
 			  skb->data, skb_headlen(skb), false);
 
···
 	rc = wil_tx_vring(wil, vring, skb);
 
 	/* do we still have enough room in the vring? */
-	if (wil_vring_avail_tx(vring) < vring->size/8)
+	if (wil_vring_avail_tx(vring) < wil_vring_wmark_low(vring))
 		netif_tx_stop_all_queues(wil_to_ndev(wil));
 
 	switch (rc) {
···
 			done++;
 		}
 	}
-	if (wil_vring_avail_tx(vring) > vring->size/4)
+	if (wil_vring_avail_tx(vring) > wil_vring_wmark_high(vring))
 		netif_tx_wake_all_queues(wil_to_ndev(wil));
 
 	return done;

drivers/net/wireless/ath/wil6210/wil6210.h

···
 #define WIL6210_MAX_CID		(8) /* HW limit */
 #define WIL6210_NAPI_BUDGET	(16) /* arbitrary */
 #define WIL6210_ITR_TRSH	(10000) /* arbitrary - about 15 IRQs/msec */
+#define WIL6210_FW_RECOVERY_RETRIES	(5) /* try to recover this many times */
+#define WIL6210_FW_RECOVERY_TO	msecs_to_jiffies(5000)
+#define WIL6210_SCAN_TO		msecs_to_jiffies(10000)
 
 /* Hardware definitions begin */
 
···
 	u32 fw_version;
 	u32 hw_version;
 	u8 n_mids; /* number of additional MIDs as reported by FW */
+	int recovery_count; /* num of FW recovery attempts in a short time */
+	unsigned long last_fw_recovery; /* jiffies of last fw recovery */
 	/* profile */
 	u32 monitor_flags;
 	u32 secure_pcp; /* create secure PCP? */
···
 	struct work_struct disconnect_worker;
 	struct work_struct fw_error_worker;	/* for FW error recovery */
 	struct timer_list connect_timer;
+	struct timer_list scan_timer; /* detect scan timeout */
 	int pending_connect_cid;
 	struct list_head pending_wmi_ev;
 	/*

drivers/net/wireless/ath/wil6210/wmi.c

···
 		bool aborted = (data->status != WMI_SCAN_SUCCESS);
 
 		wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
+		del_timer_sync(&wil->scan_timer);
 		cfg80211_scan_done(wil->scan_request, aborted);
 		wil->scan_request = NULL;
 	} else {
···
 	u8 *cmd;
 	void __iomem *src;
 	ulong flags;
+	unsigned n;
 
 	if (!test_bit(wil_status_reset_done, &wil->status)) {
 		wil_err(wil, "Reset not completed\n");
 		return;
 	}
 
-	for (;;) {
+	for (n = 0;; n++) {
 		u16 len;
 
 		r->head = ioread32(wil->csr + HOST_MBOX +
 				   offsetof(struct wil6210_mbox_ctl, rx.head));
-		if (r->tail == r->head)
+		if (r->tail == r->head) {
+			if (n == 0)
+				wil_dbg_wmi(wil, "No events?\n");
 			return;
+		}
 
-		/* read cmd from tail */
+		wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
+			    r->head, r->tail);
+		/* read cmd descriptor from tail */
 		wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
 				     sizeof(struct wil6210_mbox_ring_desc));
 		if (d_tail.sync == 0) {
···
 			return;
 		}
 
+		/* read cmd header from descriptor */
 		if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
 			wil_err(wil, "Mbox evt at 0x%08x?\n",
 				le32_to_cpu(d_tail.addr));
 			return;
 		}
-
 		len = le16_to_cpu(hdr.len);
+		wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
+			    le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
+			    hdr.flags);
+
+		/* read cmd buffer from descriptor */
 		src = wmi_buffer(wil, d_tail.addr) +
 		      sizeof(struct wil6210_mbox_hdr);
 		evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
···
 		iowrite32(0, wil->csr + HOSTADDR(r->tail) +
 			  offsetof(struct wil6210_mbox_ring_desc, sync));
 		/* indicate */
-		wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
-			    le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
-			    hdr.flags);
 		if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
 		    (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
 			struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
···
 			wil_dbg_wmi(wil, "queue_work -> %d\n", q);
 		}
 	}
+	if (n > 1)
+		wil_dbg_wmi(wil, "%s -> %d events processed\n", __func__, n);
 }
 
 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,

drivers/net/wireless/b43/main.c

···
 	b43dbg(dev->wl, "Switching to %s GHz band\n",
 	       band_to_string(chan->band));
 
-	b43_software_rfkill(dev, true);
+	/* Some new devices don't need disabling radio for band switching */
+	if (!(phy->type == B43_PHYTYPE_N && phy->rev >= 3))
+		b43_software_rfkill(dev, true);
 
 	phy->gmode = gmode;
 	b43_phy_put_into_reset(dev);
···
 static int b43_wireless_core_attach(struct b43_wldev *dev)
 {
 	struct b43_wl *wl = dev->wl;
+	struct b43_phy *phy = &dev->phy;
 	int err;
 	u32 tmp;
 	bool have_2ghz_phy = false, have_5ghz_phy = false;
···
 		b43err(wl, "Bus powerup failed\n");
 		goto out;
 	}
+
+	phy->do_full_init = true;
 
 	/* Try to guess supported bands for the first init needs */
 	switch (dev->dev->bus_type) {

drivers/net/wireless/b43/phy_common.c

···
 
 	phy->ops->switch_analog(dev, true);
 	b43_software_rfkill(dev, false);
+
 	err = ops->init(dev);
 	if (err) {
 		b43err(dev->wl, "PHY init failed\n");
 		goto err_block_rf;
 	}
+	phy->do_full_init = false;
+
 	/* Make sure to switch hardware and firmware (SHM) to
 	 * the default channel. */
 	err = b43_switch_channel(dev, ops->get_default_chan(dev));
···
 	return 0;
 
 err_phy_exit:
+	phy->do_full_init = true;
 	if (ops->exit)
 		ops->exit(dev);
 err_block_rf:
···
 	const struct b43_phy_operations *ops = dev->phy.ops;
 
 	b43_software_rfkill(dev, true);
+	dev->phy.do_full_init = true;
 	if (ops->exit)
 		ops->exit(dev);
 }

drivers/net/wireless/b43/phy_common.h

···
 	/* Is GMODE (2 GHz mode) bit enabled? */
 	bool gmode;
 
+	/* After power reset full init has to be performed */
+	bool do_full_init;
+
 	/* Analog Type */
 	u8 analog;
 	/* B43_PHYTYPE_ */

drivers/net/wireless/b43/phy_n.c

···
 	b43_radio_mask(dev, R2057_RFPLL_MISC_CAL_RESETN, ~0x78);
 	b43_radio_mask(dev, R2057_XTAL_CONFIG2, ~0x80);
 
-	if (dev->phy.n->init_por) {
+	if (dev->phy.do_full_init) {
 		b43_radio_2057_rcal(dev);
 		b43_radio_2057_rccal(dev);
 	}
 	b43_radio_mask(dev, R2057_RFPLL_MASTER, ~0x8);
-
-	dev->phy.n->init_por = false;
 }
 
 /* http://bcm-v4.sipsolutions.net/802.11/Radio/2057/Init */
···
 	b43_radio_mask(dev, B2056_SYN_COM_RESET, ~0x2);
 	b43_radio_mask(dev, B2056_SYN_PLL_MAST2, ~0xFC);
 	b43_radio_mask(dev, B2056_SYN_RCCAL_CTRL0, ~0x1);
-	if (dev->phy.n->init_por)
+	if (dev->phy.do_full_init)
 		b43_radio_2056_rcal(dev);
 }
 
···
 	b43_radio_init2056_pre(dev);
 	b2056_upload_inittabs(dev, 0, 0);
 	b43_radio_init2056_post(dev);
-
-	dev->phy.n->init_por = false;
 }
 
 /**************************************************
···
 	nphy->hang_avoid = (phy->rev == 3 || phy->rev == 4);
 	nphy->spur_avoid = (phy->rev >= 3) ?
 				B43_SPUR_AVOID_AUTO : B43_SPUR_AVOID_DISABLE;
-	nphy->init_por = true;
 	nphy->gain_boost = true; /* this way we follow wl, assume it is true */
 	nphy->txrx_chain = 2; /* sth different than 0 and 1 for now */
 	nphy->phyrxchain = 3; /* to avoid b43_nphy_set_rx_core_state like wl */
···
 		nphy->ipa2g_on = sprom->fem.ghz2.extpa_gain == 2;
 		nphy->ipa5g_on = sprom->fem.ghz5.extpa_gain == 2;
 	}
-
-	nphy->init_por = true;
 }
 
 static void b43_nphy_op_free(struct b43_wldev *dev)
···
 		}
 	} else {
 		if (dev->phy.rev >= 7) {
-			b43_radio_2057_init(dev);
+			if (!dev->phy.radio_on)
+				b43_radio_2057_init(dev);
 			b43_switch_channel(dev, dev->phy.channel);
 		} else if (dev->phy.rev >= 3) {
-			b43_radio_init2056(dev);
+			if (!dev->phy.radio_on)
+				b43_radio_init2056(dev);
 			b43_switch_channel(dev, dev->phy.channel);
 		} else {
 			b43_radio_init2055(dev);

drivers/net/wireless/b43/phy_n.h

···
 	u16 papd_epsilon_offset[2];
 	s32 preamble_override;
 	u32 bb_mult_save;
-	bool init_por;
 
 	bool gain_boost;
 	bool elna_gain_config;

drivers/net/wireless/b43/tables_nphy.c

···
 		antswlut = sprom->fem.ghz2.antswlut;
 
 	/* Static tables */
-	ntab_upload(dev, B43_NTAB_FRAMESTRUCT_R3, b43_ntab_framestruct_r3);
-	ntab_upload(dev, B43_NTAB_PILOT_R3, b43_ntab_pilot_r3);
-	ntab_upload(dev, B43_NTAB_TMAP_R3, b43_ntab_tmap_r3);
-	ntab_upload(dev, B43_NTAB_INTLEVEL_R3, b43_ntab_intlevel_r3);
-	ntab_upload(dev, B43_NTAB_TDTRN_R3, b43_ntab_tdtrn_r3);
-	ntab_upload(dev, B43_NTAB_NOISEVAR_R3, b43_ntab_noisevar_r3);
-	ntab_upload(dev, B43_NTAB_MCS_R3, b43_ntab_mcs_r3);
-	ntab_upload(dev, B43_NTAB_TDI20A0_R3, b43_ntab_tdi20a0_r3);
-	ntab_upload(dev, B43_NTAB_TDI20A1_R3, b43_ntab_tdi20a1_r3);
-	ntab_upload(dev, B43_NTAB_TDI40A0_R3, b43_ntab_tdi40a0_r3);
-	ntab_upload(dev, B43_NTAB_TDI40A1_R3, b43_ntab_tdi40a1_r3);
-	ntab_upload(dev, B43_NTAB_PILOTLT_R3, b43_ntab_pilotlt_r3);
-	ntab_upload(dev, B43_NTAB_CHANEST_R3, b43_ntab_channelest_r3);
-	ntab_upload(dev, B43_NTAB_FRAMELT_R3, b43_ntab_framelookup_r3);
-	ntab_upload(dev, B43_NTAB_C0_ESTPLT_R3, b43_ntab_estimatepowerlt0_r3);
-	ntab_upload(dev, B43_NTAB_C1_ESTPLT_R3, b43_ntab_estimatepowerlt1_r3);
-	ntab_upload(dev, B43_NTAB_C0_ADJPLT_R3, b43_ntab_adjustpower0_r3);
-	ntab_upload(dev, B43_NTAB_C1_ADJPLT_R3, b43_ntab_adjustpower1_r3);
-	ntab_upload(dev, B43_NTAB_C0_GAINCTL_R3, b43_ntab_gainctl0_r3);
-	ntab_upload(dev, B43_NTAB_C1_GAINCTL_R3, b43_ntab_gainctl1_r3);
-	ntab_upload(dev, B43_NTAB_C0_IQLT_R3, b43_ntab_iqlt0_r3);
-	ntab_upload(dev, B43_NTAB_C1_IQLT_R3, b43_ntab_iqlt1_r3);
-	ntab_upload(dev, B43_NTAB_C0_LOFEEDTH_R3, b43_ntab_loftlt0_r3);
-	ntab_upload(dev, B43_NTAB_C1_LOFEEDTH_R3, b43_ntab_loftlt1_r3);
+	if (dev->phy.do_full_init) {
+		ntab_upload(dev, B43_NTAB_FRAMESTRUCT_R3, b43_ntab_framestruct_r3);
+		ntab_upload(dev, B43_NTAB_PILOT_R3, b43_ntab_pilot_r3);
+		ntab_upload(dev, B43_NTAB_TMAP_R3, b43_ntab_tmap_r3);
+		ntab_upload(dev, B43_NTAB_INTLEVEL_R3, b43_ntab_intlevel_r3);
+		ntab_upload(dev, B43_NTAB_TDTRN_R3, b43_ntab_tdtrn_r3);
+		ntab_upload(dev, B43_NTAB_NOISEVAR_R3, b43_ntab_noisevar_r3);
+		ntab_upload(dev, B43_NTAB_MCS_R3, b43_ntab_mcs_r3);
+		ntab_upload(dev, B43_NTAB_TDI20A0_R3, b43_ntab_tdi20a0_r3);
+		ntab_upload(dev, B43_NTAB_TDI20A1_R3, b43_ntab_tdi20a1_r3);
+		ntab_upload(dev, B43_NTAB_TDI40A0_R3, b43_ntab_tdi40a0_r3);
+		ntab_upload(dev, B43_NTAB_TDI40A1_R3, b43_ntab_tdi40a1_r3);
+		ntab_upload(dev, B43_NTAB_PILOTLT_R3, b43_ntab_pilotlt_r3);
+		ntab_upload(dev, B43_NTAB_CHANEST_R3, b43_ntab_channelest_r3);
+		ntab_upload(dev, B43_NTAB_FRAMELT_R3, b43_ntab_framelookup_r3);
+		ntab_upload(dev, B43_NTAB_C0_ESTPLT_R3, b43_ntab_estimatepowerlt0_r3);
+		ntab_upload(dev, B43_NTAB_C1_ESTPLT_R3, b43_ntab_estimatepowerlt1_r3);
+		ntab_upload(dev, B43_NTAB_C0_ADJPLT_R3, b43_ntab_adjustpower0_r3);
+		ntab_upload(dev, B43_NTAB_C1_ADJPLT_R3, b43_ntab_adjustpower1_r3);
+		ntab_upload(dev, B43_NTAB_C0_GAINCTL_R3, b43_ntab_gainctl0_r3);
+		ntab_upload(dev, B43_NTAB_C1_GAINCTL_R3, b43_ntab_gainctl1_r3);
+		ntab_upload(dev, B43_NTAB_C0_IQLT_R3, b43_ntab_iqlt0_r3);
+		ntab_upload(dev, B43_NTAB_C1_IQLT_R3, b43_ntab_iqlt1_r3);
+		ntab_upload(dev, B43_NTAB_C0_LOFEEDTH_R3, b43_ntab_loftlt0_r3);
+		ntab_upload(dev, B43_NTAB_C1_LOFEEDTH_R3, b43_ntab_loftlt1_r3);
+	}
 
 	/* Volatile tables */
 	if (antswlut < ARRAY_SIZE(b43_ntab_antswctl_r3))
···
 static void b43_nphy_tables_init_rev0(struct b43_wldev *dev)
 {
 	/* Static tables */
-	ntab_upload(dev, B43_NTAB_FRAMESTRUCT, b43_ntab_framestruct);
-	ntab_upload(dev, B43_NTAB_FRAMELT, b43_ntab_framelookup);
-	ntab_upload(dev, B43_NTAB_TMAP, b43_ntab_tmap);
-	ntab_upload(dev, B43_NTAB_TDTRN, b43_ntab_tdtrn);
-	ntab_upload(dev, B43_NTAB_INTLEVEL, b43_ntab_intlevel);
-	ntab_upload(dev, B43_NTAB_PILOT, b43_ntab_pilot);
-	ntab_upload(dev, B43_NTAB_TDI20A0, b43_ntab_tdi20a0);
-	ntab_upload(dev, B43_NTAB_TDI20A1, b43_ntab_tdi20a1);
-	ntab_upload(dev, B43_NTAB_TDI40A0, b43_ntab_tdi40a0);
-	ntab_upload(dev, B43_NTAB_TDI40A1, b43_ntab_tdi40a1);
-	ntab_upload(dev, B43_NTAB_CHANEST, b43_ntab_channelest);
-	ntab_upload(dev, B43_NTAB_MCS, b43_ntab_mcs);
-	ntab_upload(dev, B43_NTAB_NOISEVAR10, b43_ntab_noisevar10);
-	ntab_upload(dev, B43_NTAB_NOISEVAR11, b43_ntab_noisevar11);
+	if (dev->phy.do_full_init) {
+		ntab_upload(dev, B43_NTAB_FRAMESTRUCT, b43_ntab_framestruct);
+		ntab_upload(dev, B43_NTAB_FRAMELT, b43_ntab_framelookup);
+		ntab_upload(dev, B43_NTAB_TMAP, b43_ntab_tmap);
+		ntab_upload(dev, B43_NTAB_TDTRN, b43_ntab_tdtrn);
+		ntab_upload(dev, B43_NTAB_INTLEVEL, b43_ntab_intlevel);
+		ntab_upload(dev, B43_NTAB_PILOT, b43_ntab_pilot);
+		ntab_upload(dev, B43_NTAB_TDI20A0, b43_ntab_tdi20a0);
+		ntab_upload(dev, B43_NTAB_TDI20A1, b43_ntab_tdi20a1);
+		ntab_upload(dev, B43_NTAB_TDI40A0, b43_ntab_tdi40a0);
+		ntab_upload(dev, B43_NTAB_TDI40A1, b43_ntab_tdi40a1);
+		ntab_upload(dev, B43_NTAB_CHANEST, b43_ntab_channelest);
+		ntab_upload(dev, B43_NTAB_MCS, b43_ntab_mcs);
+		ntab_upload(dev, B43_NTAB_NOISEVAR10, b43_ntab_noisevar10);
+		ntab_upload(dev, B43_NTAB_NOISEVAR11, b43_ntab_noisevar11);
+	}
 
 	/* Volatile tables */
 	ntab_upload(dev, B43_NTAB_BDI, b43_ntab_bdi);

drivers/net/wireless/brcm80211/brcmfmac/Makefile

···
 		bcdc.o \
 		dhd_common.o \
 		dhd_linux.o \
-		nvram.o \
+		firmware.o \
 		btcoex.o
 brcmfmac-$(CONFIG_BRCMFMAC_SDIO) += \
 		dhd_sdio.o \

drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h

···
  */
 struct brcmf_bus_ops {
 	int (*preinit)(struct device *dev);
-	int (*init)(struct device *dev);
 	void (*stop)(struct device *dev);
 	int (*txdata)(struct device *dev, struct sk_buff *skb);
 	int (*txctl)(struct device *dev, unsigned char *msg, uint len);
···
 	if (!bus->ops->preinit)
 		return 0;
 	return bus->ops->preinit(bus->dev);
-}
-
-static inline int brcmf_bus_init(struct brcmf_bus *bus)
-{
-	return bus->ops->init(bus->dev);
 }
 
 static inline void brcmf_bus_stop(struct brcmf_bus *bus)

drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c

···
 
 	brcmf_dbg(TRACE, "\n");
 
-	/* Bring up the bus */
-	ret = brcmf_bus_init(bus_if);
-	if (ret != 0) {
-		brcmf_err("brcmf_sdbrcm_bus_init failed %d\n", ret);
-		return ret;
-	}
-
 	/* add primary networking interface */
 	ifp = brcmf_add_if(drvr, 0, 0, "wlan%d", NULL);
 	if (IS_ERR(ifp))

drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c

···
 #include <soc.h>
 #include "sdio_host.h"
 #include "chip.h"
-#include "nvram.h"
+#include "firmware.h"
 
 #define DCMD_RESP_TIMEOUT  2000	/* In milli second */
 
···
 	{ BCM4354_CHIP_ID, 0xFFFFFFFF, BRCMF_FIRMWARE_NVRAM(BCM4354) }
 };
 
-
-static const struct firmware *brcmf_sdio_get_fw(struct brcmf_sdio *bus,
-						  enum brcmf_firmware_type type)
+static const char *brcmf_sdio_get_fwname(struct brcmf_chip *ci,
+					 enum brcmf_firmware_type type)
 {
-	const struct firmware *fw;
-	const char *name;
-	int err, i;
+	int i;
 
 	for (i = 0; i < ARRAY_SIZE(brcmf_fwname_data); i++) {
-		if (brcmf_fwname_data[i].chipid == bus->ci->chip &&
-		    brcmf_fwname_data[i].revmsk & BIT(bus->ci->chiprev)) {
+		if (brcmf_fwname_data[i].chipid == ci->chip &&
+		    brcmf_fwname_data[i].revmsk & BIT(ci->chiprev)) {
 			switch (type) {
 			case BRCMF_FIRMWARE_BIN:
-				name = brcmf_fwname_data[i].bin;
-				break;
+				return brcmf_fwname_data[i].bin;
 			case BRCMF_FIRMWARE_NVRAM:
-				name = brcmf_fwname_data[i].nv;
-				break;
+				return brcmf_fwname_data[i].nv;
 			default:
 				brcmf_err("invalid firmware type (%d)\n", type);
 				return NULL;
 			}
-			goto found;
 		}
 	}
 	brcmf_err("Unknown chipid %d [%d]\n",
-		  bus->ci->chip, bus->ci->chiprev);
+		  ci->chip, ci->chiprev);
 	return NULL;
-
-found:
-	err = request_firmware(&fw, name, &bus->sdiodev->func[2]->dev);
-	if ((err) || (!fw)) {
-		brcmf_err("fail to request firmware %s (%d)\n", name, err);
-		return NULL;
-	}
-
-	return fw;
 }
 
 static void pkt_align(struct sk_buff *p, int len, int align)
···
 }
 
 static int brcmf_sdio_download_nvram(struct brcmf_sdio *bus,
-				     const struct firmware *nv)
+				     void *vars, u32 varsz)
 {
-	void *vars;
-	u32 varsz;
 	int address;
 	int err;
 
 	brcmf_dbg(TRACE, "Enter\n");
-
-	vars = brcmf_nvram_strip(nv, &varsz);
-
-	if (vars == NULL)
-		return -EINVAL;
 
 	address = bus->ci->ramsize - varsz + bus->ci->rambase;
 	err = brcmf_sdiod_ramrw(bus->sdiodev, true, address, vars, varsz);
···
 	else if (!brcmf_sdio_verifymemory(bus->sdiodev, address, vars, varsz))
 		err = -EIO;
 
-	brcmf_nvram_free(vars);
-
 	return err;
 }
 
-static int brcmf_sdio_download_firmware(struct brcmf_sdio *bus)
+static int brcmf_sdio_download_firmware(struct brcmf_sdio *bus,
+					const struct firmware *fw,
+					void *nvram, u32 nvlen)
 {
 	int bcmerror = -EFAULT;
-	const struct firmware *fw;
 	u32 rstvec;
 
 	sdio_claim_host(bus->sdiodev->func[1]);
···
 	/* Keep arm in reset */
 	brcmf_chip_enter_download(bus->ci);
 
-	fw = brcmf_sdio_get_fw(bus, BRCMF_FIRMWARE_BIN);
-	if (fw == NULL) {
-		bcmerror = -ENOENT;
-		goto err;
-	}
-
 	rstvec = get_unaligned_le32(fw->data);
 	brcmf_dbg(SDIO, "firmware rstvec: %x\n", rstvec);
 
···
 	release_firmware(fw);
 	if (bcmerror) {
 		brcmf_err("dongle image file download failed\n");
+		brcmf_fw_nvram_free(nvram);
 		goto err;
 	}
 
-	fw = brcmf_sdio_get_fw(bus, BRCMF_FIRMWARE_NVRAM);
-	if (fw == NULL) {
-		bcmerror = -ENOENT;
-		goto err;
-	}
-
-	bcmerror = brcmf_sdio_download_nvram(bus, fw);
-	release_firmware(fw);
+	bcmerror = brcmf_sdio_download_nvram(bus, nvram, nvlen);
+	brcmf_fw_nvram_free(nvram);
 	if (bcmerror) {
 		brcmf_err("dongle nvram file download failed\n");
 		goto err;
···
 
 done:
 	return err;
-}
-
-static int brcmf_sdio_bus_init(struct device *dev)
-{
-	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
-	struct brcmf_sdio *bus = sdiodev->bus;
-	int err, ret = 0;
-	u8 saveclk;
-
-	brcmf_dbg(TRACE, "Enter\n");
-
-	/* try to download image and nvram to the dongle */
-	if (bus_if->state == BRCMF_BUS_DOWN) {
-		bus->alp_only = true;
-		err = brcmf_sdio_download_firmware(bus);
-		if (err)
-			return err;
-		bus->alp_only = false;
-	}
-
-	if (!bus->sdiodev->bus_if->drvr)
-		return 0;
-
-	/* Start the watchdog timer */
-	bus->sdcnt.tickcnt = 0;
-	brcmf_sdio_wd_timer(bus, BRCMF_WD_POLL_MS);
-
-	sdio_claim_host(bus->sdiodev->func[1]);
-
-	/* Make sure backplane clock is on, needed to generate F2 interrupt */
-	brcmf_sdio_clkctl(bus, CLK_AVAIL, false);
-	if (bus->clkstate != CLK_AVAIL)
-		goto exit;
-
-	/* Force clocks on backplane to be sure F2 interrupt propagates */
-	saveclk = brcmf_sdiod_regrb(bus->sdiodev,
-				    SBSDIO_FUNC1_CHIPCLKCSR, &err);
-	if (!err) {
-		brcmf_sdiod_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
-				  (saveclk | SBSDIO_FORCE_HT), &err);
-	}
-	if (err) {
-		brcmf_err("Failed to force clock for F2: err %d\n", err);
-		goto exit;
-	}
-
-	/* Enable function 2 (frame transfers) */
-	w_sdreg32(bus, SDPCM_PROT_VERSION << SMB_DATA_VERSION_SHIFT,
-		  offsetof(struct sdpcmd_regs, tosbmailboxdata));
-	err = sdio_enable_func(bus->sdiodev->func[SDIO_FUNC_2]);
-
-
-	brcmf_dbg(INFO, "enable F2: err=%d\n", err);
-
-	/* If F2 successfully enabled, set core and enable interrupts */
-	if (!err) {
-		/* Set up the interrupt mask and enable interrupts */
-		bus->hostintmask = HOSTINTMASK;
-		w_sdreg32(bus, bus->hostintmask,
-			  offsetof(struct sdpcmd_regs, hostintmask));
-
-		brcmf_sdiod_regwb(bus->sdiodev, SBSDIO_WATERMARK, 8, &err);
-	} else {
-		/* Disable F2 again */
-		sdio_disable_func(bus->sdiodev->func[SDIO_FUNC_2]);
-		ret = -ENODEV;
-	}
-
-	if (brcmf_chip_sr_capable(bus->ci)) {
-		brcmf_sdio_sr_init(bus);
-	} else {
-		/* Restore previous clock setting */
-		brcmf_sdiod_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
-				  saveclk, &err);
-	}
-
-	if (ret == 0) {
-		ret = brcmf_sdiod_intr_register(bus->sdiodev);
-		if (ret != 0)
-			brcmf_err("intr register failed:%d\n", ret);
-	}
-
-	/* If we didn't come up, turn off backplane clock */
-	if (ret != 0)
-		brcmf_sdio_clkctl(bus, CLK_NONE, false);
-
-exit:
-	sdio_release_host(bus->sdiodev->func[1]);
-
-	return ret;
 }
 
 void brcmf_sdio_isr(struct brcmf_sdio *bus)
···
 static struct brcmf_bus_ops brcmf_sdio_bus_ops = {
 	.stop = brcmf_sdio_bus_stop,
 	.preinit = brcmf_sdio_bus_preinit,
-	.init = brcmf_sdio_bus_init,
 	.txdata = brcmf_sdio_bus_txdata,
 	.txctl = brcmf_sdio_bus_txctl,
 	.rxctl = brcmf_sdio_bus_rxctl,
 	.gettxq = brcmf_sdio_bus_gettxq,
 };
+
+static void brcmf_sdio_firmware_callback(struct device *dev,
+					 const struct firmware *code,
+					 void *nvram, u32 nvram_len)
+{
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
+	struct brcmf_sdio *bus = sdiodev->bus;
+	int err = 0;
+	u8 saveclk;
+
+	brcmf_dbg(TRACE, "Enter: dev=%s\n", dev_name(dev));
+
+	/* try to download image and nvram to the dongle */
+	if (bus_if->state == BRCMF_BUS_DOWN) {
+		bus->alp_only = true;
+		err = brcmf_sdio_download_firmware(bus, code, nvram, nvram_len);
+		if (err)
+			goto fail;
+		bus->alp_only = false;
+	}
+
+	if (!bus_if->drvr)
+		return;
+
+	/* Start the watchdog timer */
+	bus->sdcnt.tickcnt = 0;
+	brcmf_sdio_wd_timer(bus, BRCMF_WD_POLL_MS);
+
+	sdio_claim_host(sdiodev->func[1]);
+
+	/* Make sure backplane clock is on, needed to generate F2 interrupt */
+	brcmf_sdio_clkctl(bus, CLK_AVAIL, false);
+	if (bus->clkstate != CLK_AVAIL)
+		goto release;
+
+	/* Force clocks on backplane to be sure F2 interrupt propagates */
+	saveclk = brcmf_sdiod_regrb(sdiodev, SBSDIO_FUNC1_CHIPCLKCSR, &err);
+	if (!err) {
+		brcmf_sdiod_regwb(sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
+				  (saveclk | SBSDIO_FORCE_HT), &err);
+	}
+	if (err) {
+		brcmf_err("Failed to force clock for F2: err %d\n", err);
+		goto release;
+	}
+
+	/* Enable function 2 (frame transfers) */
+	w_sdreg32(bus, SDPCM_PROT_VERSION << SMB_DATA_VERSION_SHIFT,
+		  offsetof(struct sdpcmd_regs, tosbmailboxdata));
+	err = sdio_enable_func(sdiodev->func[SDIO_FUNC_2]);
+
+
+	brcmf_dbg(INFO, "enable F2: err=%d\n", err);
+
+	/* If F2 successfully enabled, set core and enable interrupts */
+	if (!err) {
+		/* Set up the interrupt mask and enable interrupts */
+		bus->hostintmask = HOSTINTMASK;
+		w_sdreg32(bus, bus->hostintmask,
+			  offsetof(struct sdpcmd_regs, hostintmask));
+
+		brcmf_sdiod_regwb(sdiodev, SBSDIO_WATERMARK, 8, &err);
+	} else {
+		/* Disable F2 again */
+		sdio_disable_func(sdiodev->func[SDIO_FUNC_2]);
+		goto release;
+	}
+
+	if (brcmf_chip_sr_capable(bus->ci)) {
+		brcmf_sdio_sr_init(bus);
+	} else {
+		/* Restore previous clock setting */
+		brcmf_sdiod_regwb(sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
+				  saveclk, &err);
+	}
+
+	if (err == 0) {
+		err = brcmf_sdiod_intr_register(sdiodev);
+		if (err != 0)
+			brcmf_err("intr register failed:%d\n", err);
+	}
+
+	/* If we didn't come up, turn off backplane clock */
+	if (err != 0)
+		brcmf_sdio_clkctl(bus, CLK_NONE, false);
+
+	sdio_release_host(sdiodev->func[1]);
+
+	err = brcmf_bus_start(dev);
+	if (err != 0) {
+		brcmf_err("dongle is not responding\n");
+		goto fail;
+	}
+	return;
+
+release:
+	sdio_release_host(sdiodev->func[1]);
+fail:
+	brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), err);
+	device_release_driver(dev);
+}
 
 struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
 {
···
 		goto fail;
 	}
 
+	/* Query the F2 block size, set roundup accordingly */
+	bus->blocksize = bus->sdiodev->func[2]->cur_blksize;
+	bus->roundup = min(max_roundup, bus->blocksize);
+
 	/* Allocate buffers */
 	if (bus->sdiodev->bus_if->maxctl) {
+		bus->sdiodev->bus_if->maxctl += bus->roundup;
 		bus->rxblen =
 		    roundup((bus->sdiodev->bus_if->maxctl + SDPCM_HDRLEN),
 			    ALIGNMENT) + bus->head_align;
···
 	bus->idletime = BRCMF_IDLE_INTERVAL;
 	bus->idleclock = BRCMF_IDLE_ACTIVE;
 
-	/* Query the F2 block size, set roundup accordingly */
-	bus->blocksize = bus->sdiodev->func[2]->cur_blksize;
-	bus->roundup = min(max_roundup, bus->blocksize);
-
 	/* SR state */
 	bus->sleeping = false;
 	bus->sr_enabled = false;
···
 	brcmf_sdio_debugfs_create(bus);
 	brcmf_dbg(INFO, "completed!!\n");
 
-	/* if firmware path present try to download and bring up bus */
-	ret = brcmf_bus_start(bus->sdiodev->dev);
+	ret = brcmf_fw_get_firmwares(sdiodev->dev, BRCMF_FW_REQUEST_NVRAM,
+				     brcmf_sdio_get_fwname(bus->ci,
+							   BRCMF_FIRMWARE_BIN),
+				     brcmf_sdio_get_fwname(bus->ci,
+							   BRCMF_FIRMWARE_NVRAM),
+				     brcmf_sdio_firmware_callback);
 	if (ret != 0) {
-		brcmf_err("dongle is not responding\n");
+		brcmf_err("async firmware request failed: %d\n", ret);
 		goto fail;
 	}
 
···
 		/* De-register interrupt handler */
 		brcmf_sdiod_intr_unregister(bus->sdiodev);
 
-		if (bus->sdiodev->bus_if->drvr) {
-			brcmf_detach(bus->sdiodev->dev);
-		}
+		brcmf_detach(bus->sdiodev->dev);
 
 		cancel_work_sync(&bus->datawork);
 		if (bus->brcmf_wq)

drivers/net/wireless/brcm80211/brcmfmac/nvram.c drivers/net/wireless/brcm80211/brcmfmac/firmware.c

···
 
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/device.h>
 #include <linux/firmware.h>
 
 #include "dhd_dbg.h"
-#include "nvram.h"
+#include "firmware.h"
 
 enum nvram_parser_state {
 	IDLE,
···
  * and converts newlines to NULs. Shortens buffer as needed and pads with NULs.
  * End of buffer is completed with token identifying length of buffer.
  */
-void *brcmf_nvram_strip(const struct firmware *nv, u32 *new_length)
+static void *brcmf_fw_nvram_strip(const struct firmware *nv, u32 *new_length)
 {
 	struct nvram_parser nvp;
 	u32 pad;
···
 	return nvp.nvram;
 }
 
-void brcmf_nvram_free(void *nvram)
+void brcmf_fw_nvram_free(void *nvram)
 {
 	kfree(nvram);
 }
 
+struct brcmf_fw {
+	struct device *dev;
+	u16 flags;
+	const struct firmware *code;
+	const char *nvram_name;
+	void (*done)(struct device *dev, const struct firmware *fw,
+		     void *nvram_image, u32 nvram_len);
+};
+
+static void brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
+{
+	struct brcmf_fw *fwctx = ctx;
+	u32 nvram_length = 0;
+	void *nvram = NULL;
+
+	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
+	if (!fw && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
+		goto fail;
+
+	if (fw) {
+		nvram = brcmf_fw_nvram_strip(fw, &nvram_length);
+		release_firmware(fw);
+		if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
+			goto fail;
+	}
+
+	fwctx->done(fwctx->dev, fwctx->code, nvram, nvram_length);
+	kfree(fwctx);
+	return;
+
+fail:
+	brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev));
+	if (fwctx->code)
+		release_firmware(fwctx->code);
+	device_release_driver(fwctx->dev);
+	kfree(fwctx);
+}
+
+static void brcmf_fw_request_code_done(const struct firmware *fw, void *ctx)
+{
+	struct brcmf_fw *fwctx = ctx;
+	int ret;
+
+	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
+	if (!fw)
+		goto fail;
+
+	/* only requested code so done here */
+	if (!(fwctx->flags & BRCMF_FW_REQUEST_NVRAM)) {
+		fwctx->done(fwctx->dev, fw, NULL, 0);
+		kfree(fwctx);
+		return;
+	}
+	fwctx->code = fw;
+	ret = request_firmware_nowait(THIS_MODULE, true, fwctx->nvram_name,
+				      fwctx->dev, GFP_KERNEL, fwctx,
+				      brcmf_fw_request_nvram_done);
+
+	if (!ret)
+		return;
+
+	/* when nvram is optional call .done() callback here */
+	if (fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL) {
+		fwctx->done(fwctx->dev, fw, NULL, 0);
+		kfree(fwctx);
+		return;
+	}
+
+	/* failed nvram request */
+	release_firmware(fw);
+fail:
+	brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev));
+	device_release_driver(fwctx->dev);
+	kfree(fwctx);
+}
+
+int brcmf_fw_get_firmwares(struct device *dev, u16 flags,
+			   const char *code, const char *nvram,
+			   void (*fw_cb)(struct device *dev,
+					 const struct firmware *fw,
+					 void *nvram_image, u32 nvram_len))
+{
+	struct brcmf_fw *fwctx;
+
+	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(dev));
+	if (!fw_cb || !code)
+		return -EINVAL;
+
+	if ((flags & BRCMF_FW_REQUEST_NVRAM) && !nvram)
+		return -EINVAL;
+
+	fwctx = kzalloc(sizeof(*fwctx), GFP_KERNEL);
+	if (!fwctx)
+		return -ENOMEM;
+
+	fwctx->dev = dev;
+	fwctx->flags = flags;
+	fwctx->done = fw_cb;
+	if (flags & BRCMF_FW_REQUEST_NVRAM)
+		fwctx->nvram_name = nvram;
+
+	return request_firmware_nowait(THIS_MODULE, true, code, dev,
+				       GFP_KERNEL, fwctx,
+				       brcmf_fw_request_code_done);
+}

drivers/net/wireless/brcm80211/brcmfmac/nvram.h drivers/net/wireless/brcm80211/brcmfmac/firmware.h

···
  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
-#ifndef BRCMFMAC_NVRAM_H
-#define BRCMFMAC_NVRAM_H
+#ifndef BRCMFMAC_FIRMWARE_H
+#define BRCMFMAC_FIRMWARE_H
 
+#define BRCMF_FW_REQUEST		0x000F
+#define  BRCMF_FW_REQUEST_NVRAM		0x0001
+#define BRCMF_FW_REQ_FLAGS		0x00F0
+#define  BRCMF_FW_REQ_NV_OPTIONAL	0x0010
 
-void *brcmf_nvram_strip(const struct firmware *nv, u32 *new_length);
-void brcmf_nvram_free(void *nvram);
+void brcmf_fw_nvram_free(void *nvram);
+/*
+ * Request firmware(s) asynchronously. When the asynchronous request
+ * fails it will not use the callback, but call device_release_driver()
+ * instead which will call the driver .remove() callback.
+ */
+int brcmf_fw_get_firmwares(struct device *dev, u16 flags,
+			   const char *code, const char *nvram,
+			   void (*fw_cb)(struct device *dev,
+					 const struct firmware *fw,
+					 void *nvram_image, u32 nvram_len));
 
-
-#endif /* BRCMFMAC_NVRAM_H */
+#endif /* BRCMFMAC_FIRMWARE_H */

drivers/net/wireless/brcm80211/brcmfmac/usb.c

···
 #include <dhd_bus.h>
 #include <dhd_dbg.h>
 
+#include "firmware.h"
 #include "usb_rdl.h"
 #include "usb.h"
 
···
 	u8 *image;
 	int image_len;
 };
-static struct list_head fw_image_list;
-
-struct intr_transfer_buf {
-	u32 notification;
-	u32 reserved;
-};
 
 struct brcmf_usbdev_info {
 	struct brcmf_usbdev bus_pub; /* MUST BE FIRST */
···
 	struct list_head rx_postq;
 	struct list_head tx_freeq;
 	struct list_head tx_postq;
-	uint rx_pipe, tx_pipe, intr_pipe, rx_pipe2;
+	uint rx_pipe, tx_pipe, rx_pipe2;
 
 	int rx_low_watermark;
 	int tx_low_watermark;
···
 	struct brcmf_usbreq *tx_reqs;
 	struct brcmf_usbreq *rx_reqs;
 
-	u8 *image;	/* buffer for combine fw and nvram */
+	const u8 *image;	/* buffer for combine fw and nvram */
 	int image_len;
 
 	struct usb_device *usbdev;
···
 	ulong ctl_op;
 
 	struct urb *bulk_urb; /* used for FW download */
-	struct urb *intr_urb; /* URB for interrupt endpoint */
-	int intr_size;          /* Size of interrupt message */
-	int interval;           /* Interrupt polling interval */
-	struct intr_transfer_buf intr; /* Data buffer for interrupt endpoint */
 };
 
 static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
···
 	}
 }
 
-static void
-brcmf_usb_intr_complete(struct urb *urb)
-{
-	struct brcmf_usbdev_info *devinfo =
-			(struct brcmf_usbdev_info *)urb->context;
-	int err;
-
-	brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
-
-	if (devinfo == NULL)
-		return;
-
-	if (unlikely(urb->status)) {
-		if (urb->status == -ENOENT ||
-		    urb->status == -ESHUTDOWN ||
-		    urb->status == -ENODEV) {
-			brcmf_usb_state_change(devinfo,
-					       BRCMFMAC_USB_STATE_DOWN);
-		}
-	}
-
-	if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN) {
-		brcmf_err("intr cb when DBUS down, ignoring\n");
-		return;
-	}
-
-	if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
-		err = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
-		if (err)
-			brcmf_err("usb_submit_urb, err=%d\n", err);
-	}
-}
-
 static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
 {
 	struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
···
 {
 	struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
 	u16 ifnum;
-	int ret;
 
 	brcmf_dbg(USB, "Enter\n");
 	if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
···
 
 	/* Success, indicate devinfo is fully up */
 	brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
-
-	if (devinfo->intr_urb) {
-		usb_fill_int_urb(devinfo->intr_urb, devinfo->usbdev,
-			devinfo->intr_pipe,
-			&devinfo->intr,
-			devinfo->intr_size,
-			(usb_complete_t)brcmf_usb_intr_complete,
-			devinfo,
-			devinfo->interval);
-
-		ret = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
-		if (ret) {
-			brcmf_err("USB_SUBMIT_URB failed with status %d\n",
-				  ret);
-			return -EINVAL;
-		}
-	}
 
 	if (devinfo->ctl_urb) {
 		devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
···
 		return;
 
 	brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
-	if (devinfo->intr_urb)
-		usb_kill_urb(devinfo->intr_urb);
 
 	if (devinfo->ctl_urb)
 		usb_kill_urb(devinfo->ctl_urb);
···
 	}
 
 	err = brcmf_usb_dlstart(devinfo,
-		devinfo->image, devinfo->image_len);
+		(u8 *)devinfo->image, devinfo->image_len);
 	if (err == 0)
 		err = brcmf_usb_dlrun(devinfo);
 	return err;
···
 	brcmf_usb_free_q(&devinfo->rx_freeq, false);
 	brcmf_usb_free_q(&devinfo->tx_freeq, false);
 
-	usb_free_urb(devinfo->intr_urb);
 	usb_free_urb(devinfo->ctl_urb);
 	usb_free_urb(devinfo->bulk_urb);
 
···
 	return -1;
 }
 
-static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
+static const char *brcmf_usb_get_fwname(struct brcmf_usbdev_info *devinfo)
 {
-	s8 *fwname;
-	const struct firmware *fw;
-	struct brcmf_usb_image *fw_image;
-	int err;
-
-	brcmf_dbg(USB, "Enter\n");
 	switch (devinfo->bus_pub.devid) {
 	case 43143:
-		fwname = BRCMF_USB_43143_FW_NAME;
-		break;
+		return BRCMF_USB_43143_FW_NAME;
 	case 43235:
 	case 43236:
 	case 43238:
-		fwname = BRCMF_USB_43236_FW_NAME;
-		break;
+		return BRCMF_USB_43236_FW_NAME;
 	case 43242:
-		fwname = BRCMF_USB_43242_FW_NAME;
-		break;
+		return BRCMF_USB_43242_FW_NAME;
 	default:
-		return -EINVAL;
-		break;
+		return NULL;
 	}
-	brcmf_dbg(USB, "Loading FW %s\n", fwname);
-	list_for_each_entry(fw_image, &fw_image_list, list) {
-		if (fw_image->fwname == fwname) {
-			devinfo->image = fw_image->image;
-			devinfo->image_len = fw_image->image_len;
-			return 0;
-		}
-	}
-	/* fw image not yet loaded. Load it now and add to list */
-	err = request_firmware(&fw, fwname, devinfo->dev);
-	if (!fw) {
-		brcmf_err("fail to request firmware %s\n", fwname);
-		return err;
-	}
-	if (check_file(fw->data) < 0) {
-		brcmf_err("invalid firmware %s\n", fwname);
-		return -EINVAL;
-	}
-
-	fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC);
-	if (!fw_image)
-		return -ENOMEM;
-	INIT_LIST_HEAD(&fw_image->list);
-	list_add_tail(&fw_image->list, &fw_image_list);
-	fw_image->fwname = fwname;
-	fw_image->image = vmalloc(fw->size);
-	if (!fw_image->image)
-		return -ENOMEM;
-
-	memcpy(fw_image->image, fw->data, fw->size);
-	fw_image->image_len = fw->size;
-
-	release_firmware(fw);
-
-	devinfo->image = fw_image->image;
-	devinfo->image_len = fw_image->image_len;
-
-	return 0;
 }
 
 
···
 		goto error;
 	devinfo->tx_freecount = ntxq;
 
-	devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC);
-	if (!devinfo->intr_urb) {
-		brcmf_err("usb_alloc_urb (intr) failed\n");
-		goto error;
-	}
 	devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
 	if (!devinfo->ctl_urb) {
 		brcmf_err("usb_alloc_urb (ctl) failed\n");
···
 		goto error;
 	}
 
-	if (!brcmf_usb_dlneeded(devinfo))
-		return &devinfo->bus_pub;
-
-	brcmf_dbg(USB, "Start fw downloading\n");
-	if (brcmf_usb_get_fw(devinfo))
-		goto error;
-
-	if (brcmf_usb_fw_download(devinfo))
-		goto error;
-
 	return &devinfo->bus_pub;
 
 error:
···
 
 static struct brcmf_bus_ops brcmf_usb_bus_ops = {
 	.txdata = brcmf_usb_tx,
-	.init = brcmf_usb_up,
 	.stop = brcmf_usb_down,
 	.txctl = brcmf_usb_tx_ctlpkt,
 	.rxctl = brcmf_usb_rx_ctlpkt,
 };
 
+static int brcmf_usb_bus_setup(struct brcmf_usbdev_info *devinfo)
+{
+	int ret;
+
+	/* Attach to the common driver interface */
+	ret = brcmf_attach(devinfo->dev);
+	if (ret) {
+		brcmf_err("brcmf_attach failed\n");
+		return ret;
+	}
+
+	ret = brcmf_usb_up(devinfo->dev);
+	if (ret)
+		goto fail;
+
+	ret = brcmf_bus_start(devinfo->dev);
+	if (ret)
+		goto fail;
+
+	return 0;
+fail:
+	brcmf_detach(devinfo->dev);
+	return ret;
+}
+
+static void brcmf_usb_probe_phase2(struct device *dev,
+				   const struct firmware *fw,
+				   void *nvram, u32 nvlen)
+{
+	struct brcmf_bus *bus = dev_get_drvdata(dev);
+	struct brcmf_usbdev_info *devinfo;
+	int ret;
+
+	brcmf_dbg(USB, "Start fw downloading\n");
+	ret = check_file(fw->data);
+	if (ret < 0) {
+		brcmf_err("invalid firmware\n");
+		release_firmware(fw);
+		goto error;
+	}
+
+	devinfo = bus->bus_priv.usb->devinfo;
+	devinfo->image = fw->data;
+	devinfo->image_len = fw->size;
+
+	ret = brcmf_usb_fw_download(devinfo);
+	release_firmware(fw);
+	if (ret)
+		goto error;
+
+	ret = brcmf_usb_bus_setup(devinfo);
+	if (ret)
+		goto error;
+
+	return;
+error:
+	brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret);
+	device_release_driver(dev);
+}
+
 static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
 {
 	struct brcmf_bus *bus = NULL;
 	struct brcmf_usbdev *bus_pub = NULL;
-	int ret;
 	struct device *dev = devinfo->dev;
+	int ret;
 
 	brcmf_dbg(USB, "Enter\n");
 	bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
···
 	bus->proto_type = BRCMF_PROTO_BCDC;
 	bus->always_use_fws_queue = true;
 
-	/* Attach to the common driver interface */
-	ret = brcmf_attach(dev);
-	if (ret) {
-		brcmf_err("brcmf_attach failed\n");
-		goto fail;
+	if (!brcmf_usb_dlneeded(devinfo)) {
+		ret = brcmf_usb_bus_setup(devinfo);
+		if (ret)
+			goto fail;
 	}
-
-	ret = brcmf_bus_start(dev);
-	if (ret) {
-		brcmf_err("dongle is not responding\n");
-		brcmf_detach(dev);
-		goto fail;
-	}
-
+	/* request firmware here */
+	brcmf_fw_get_firmwares(dev, 0, brcmf_usb_get_fwname(devinfo), NULL,
+			       brcmf_usb_probe_phase2);
 	return 0;
+
 fail:
 	/* Release resources in reverse order */
 	kfree(bus);
···
 		goto fail;
 	}
 
-	endpoint_num = endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-	devinfo->intr_pipe = usb_rcvintpipe(usb, endpoint_num);
-
 	devinfo->rx_pipe = 0;
 	devinfo->rx_pipe2 = 0;
 	devinfo->tx_pipe = 0;
···
 		}
 	}
 
-	/* Allocate interrupt URB and data buffer */
-	/* RNDIS says 8-byte intr, our old drivers used 4-byte */
-	if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16))
-		devinfo->intr_size = 8;
-	else
-		devinfo->intr_size = 4;
-
-	devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval;
-
-	if (usb->speed == USB_SPEED_HIGH)
+	if (usb->speed == USB_SPEED_SUPER)
+		brcmf_dbg(USB, "Broadcom super speed USB wireless device detected\n");
+	else if (usb->speed == USB_SPEED_HIGH)
 		brcmf_dbg(USB, "Broadcom high speed USB wireless device detected\n");
 	else
 		brcmf_dbg(USB, "Broadcom full speed USB wireless device detected\n");
···
 	struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
 
 	brcmf_dbg(USB, "Enter\n");
-	if (!brcmf_attach(devinfo->dev))
-		return brcmf_bus_start(&usb->dev);
-
-	return 0;
+	return brcmf_usb_bus_setup(devinfo);
 }
 
 static int brcmf_usb_reset_resume(struct usb_interface *intf)
 {
 	struct usb_device *usb = interface_to_usbdev(intf);
 	struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
-
 	brcmf_dbg(USB, "Enter\n");
 
-	if (!brcmf_usb_fw_download(devinfo))
-		return brcmf_usb_resume(intf);
-
-	return -EIO;
+	return brcmf_fw_get_firmwares(&usb->dev, 0,
+				      brcmf_usb_get_fwname(devinfo), NULL,
+				      brcmf_usb_probe_phase2);
 }
 
 #define BRCMF_USB_VENDOR_ID_BROADCOM	0x0a5c
···
 	.disable_hub_initiated_lpm = 1,
 };
 
-static void brcmf_release_fw(struct list_head *q)
-{
-	struct brcmf_usb_image *fw_image, *next;
-
-	list_for_each_entry_safe(fw_image, next, q, list) {
-		vfree(fw_image->image);
-		list_del_init(&fw_image->list);
-	}
-}
-
 static int brcmf_usb_reset_device(struct device *dev, void *notused)
 {
 	/* device past is the usb interface so we
···
 	ret = driver_for_each_device(drv, NULL, NULL,
 				     brcmf_usb_reset_device);
 	usb_deregister(&brcmf_usbdrvr);
-	brcmf_release_fw(&fw_image_list);
 }
 
 void brcmf_usb_register(void)
 {
 	brcmf_dbg(USB, "Enter\n");
-	INIT_LIST_HEAD(&fw_image_list);
 	usb_register(&brcmf_usbdrvr);
 }

drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c

···
 	return qdbm;
 }
 
-u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
-			struct cfg80211_chan_def *ch)
+static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
+			       struct cfg80211_chan_def *ch)
 {
 	struct brcmu_chan ch_inf;
 	s32 primary_offset;
···
 		if (err)
 			brcmf_err("Scan abort  failed\n");
 	}
+
+	brcmf_set_mpc(ifp, 1);
+
 	/*
 	 * e-scan can be initiated by scheduled scan
 	 * which takes precedence.
···
 		cfg->sched_escan = false;
 		if (!aborted)
 			cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
-		brcmf_set_mpc(ifp, 1);
 	} else if (scan_request) {
 		brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
 			  aborted ? "Aborted" : "Done");
 		cfg80211_scan_done(scan_request, aborted);
-		brcmf_set_mpc(ifp, 1);
 	}
 	if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
 		brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
···
 	}
 
 	if (!request->n_ssids || !request->n_match_sets) {
-		brcmf_err("Invalid sched scan req!! n_ssids:%d\n",
+		brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
 			  request->n_ssids);
 		return -EINVAL;
 	}

drivers/net/wireless/brcm80211/brcmutil/d11.c

···
 	if (ch->bw == BRCMU_CHAN_BW_20)
 		ch->sb = BRCMU_CHAN_SB_NONE;
 
+	ch->chspec = 0;
 	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_CH_MASK,
 			BRCMU_CHSPEC_CH_SHIFT, ch->chnum);
 	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11N_SB_MASK,
···
 	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11N_BW_MASK,
 			0, d11n_bw(ch->bw));
 
-	ch->chspec &= ~BRCMU_CHSPEC_D11N_BND_MASK;
 	if (ch->chnum <= CH_MAX_2G_CHANNEL)
 		ch->chspec |= BRCMU_CHSPEC_D11N_BND_2G;
 	else

drivers/net/wireless/mwifiex/fw.h

···
 #define HS_CFG_CANCEL			0xffffffff
 #define HS_CFG_COND_DEF			0x00000000
 #define HS_CFG_GPIO_DEF			0xff
-#define HS_CFG_GAP_DEF			0
+#define HS_CFG_GAP_DEF			0xff
 #define HS_CFG_COND_BROADCAST_DATA	0x00000001
 #define HS_CFG_COND_UNICAST_DATA	0x00000002
 #define HS_CFG_COND_MAC_EVENT		0x00000004

drivers/net/wireless/mwifiex/main.h

···
 		return 0;
 
 	/* Clear csa channel, if DFS channel move time has passed */
-	if (jiffies > priv->csa_expire_time) {
+	if (time_after(jiffies, priv->csa_expire_time)) {
 		priv->csa_chan = 0;
 		priv->csa_expire_time = 0;
 	}

drivers/net/wireless/mwifiex/scan.c

···
 	return 0;
 }
 
+static void mwifiex_complete_scan(struct mwifiex_private *priv)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	if (adapter->curr_cmd->wait_q_enabled) {
+		adapter->cmd_wait_q.status = 0;
+		if (!priv->scan_request) {
+			dev_dbg(adapter->dev, "complete internal scan\n");
+			mwifiex_complete_cmd(adapter, adapter->curr_cmd);
+		}
+	}
+}
+
 static void mwifiex_check_next_scan_command(struct mwifiex_private *priv)
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
···
 		adapter->scan_processing = false;
 		spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
 
-		/* Need to indicate IOCTL complete */
-		if (adapter->curr_cmd->wait_q_enabled) {
-			adapter->cmd_wait_q.status = 0;
-			if (!priv->scan_request) {
-				dev_dbg(adapter->dev,
-					"complete internal scan\n");
-				mwifiex_complete_cmd(adapter,
-						     adapter->curr_cmd);
-			}
-		}
+		if (!adapter->ext_scan)
+			mwifiex_complete_scan(priv);
+
 		if (priv->report_scan_result)
 			priv->report_scan_result = false;
 
···
 int mwifiex_ret_802_11_scan_ext(struct mwifiex_private *priv)
 {
 	dev_dbg(priv->adapter->dev, "info: EXT scan returns successfully\n");
+
+	mwifiex_complete_scan(priv);
+
 	return 0;
 }
 

drivers/net/wireless/mwifiex/wmm.c

···
 		if (!mwifiex_queuing_ra_based(priv)) {
 			if (mwifiex_get_tdls_link_status(priv, ra) ==
 			    TDLS_SETUP_COMPLETE) {
+				ra_list->tdls_link = true;
 				ra_list->is_11n_enabled =
 					mwifiex_tdls_peer_11n_enabled(priv, ra);
 			} else {

drivers/net/wireless/rsi/rsi_common.h

···
 				     u8 *name)
 {
 	init_completion(&thread->completion);
-	thread->task = kthread_run(func_ptr, common, name);
+	thread->task = kthread_run(func_ptr, common, "%s", name);
 	if (IS_ERR(thread->task))
 		return (int)PTR_ERR(thread->task);
 

drivers/net/wireless/rtlwifi/rtl8192cu/sw.c

···
 	/* .resume = rtl_usb_resume, */
 	/* .reset_resume = rtl8192c_resume, */
 #endif /* CONFIG_PM */
-#ifdef CONFIG_AUTOSUSPEND
-	.supports_autosuspend = 1,
-#endif
 	.disable_hub_initiated_lpm = 1,
 };
 

drivers/net/wireless/rtlwifi/rtl8723ae/hal_bt_coexist.c

···
 #include "dm.h"
 #include "fw.h"
 #include "../rtl8723com/fw_common.h"
-#include "../rtl8723com/fw_common.h"
 #include "phy.h"
 #include "reg.h"
 #include "hal_btc.h"

drivers/net/wireless/rtlwifi/rtl8723be/trx.c

···
 #include "trx.h"
 #include "led.h"
 #include "dm.h"
-#include "phy.h"
 
 static u8 _rtl8723be_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
 {

drivers/nfc/port100.c

···
 			   NFC_PROTO_MIFARE_MASK   | \
 			   NFC_PROTO_FELICA_MASK   | \
 			   NFC_PROTO_NFC_DEP_MASK  | \
-			   NFC_PROTO_ISO14443_MASK)
+			   NFC_PROTO_ISO14443_MASK | \
+			   NFC_PROTO_ISO14443_B_MASK)
 
 #define PORT100_CAPABILITIES (NFC_DIGITAL_DRV_CAPS_IN_CRC | \
 			      NFC_DIGITAL_DRV_CAPS_TG_CRC)
···
 #define PORT100_COMM_TYPE_IN_212F 0x01
 #define PORT100_COMM_TYPE_IN_424F 0x02
 #define PORT100_COMM_TYPE_IN_106A 0x03
+#define PORT100_COMM_TYPE_IN_106B 0x07
 
 static const struct port100_in_rf_setting in_rf_settings[] = {
 	[NFC_DIGITAL_RF_TECH_212F] = {
···
 		.in_send_comm_type  = PORT100_COMM_TYPE_IN_106A,
 		.in_recv_set_number = 15,
 		.in_recv_comm_type  = PORT100_COMM_TYPE_IN_106A,
+	},
+	[NFC_DIGITAL_RF_TECH_106B] = {
+		.in_send_set_number = 3,
+		.in_send_comm_type  = PORT100_COMM_TYPE_IN_106B,
+		.in_recv_set_number = 15,
+		.in_recv_comm_type  = PORT100_COMM_TYPE_IN_106B,
 	},
 	/* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */
 	[NFC_DIGITAL_RF_TECH_LAST] = { 0 },
···
 	},
 	[NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = {
 		{ PORT100_IN_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCB] = {
+		{ PORT100_IN_PROT_INITIAL_GUARD_TIME,     20 },
+		{ PORT100_IN_PROT_ADD_CRC,                 1 },
+		{ PORT100_IN_PROT_CHECK_CRC,               1 },
+		{ PORT100_IN_PROT_MULTI_CARD,              0 },
+		{ PORT100_IN_PROT_ADD_PARITY,              0 },
+		{ PORT100_IN_PROT_CHECK_PARITY,            0 },
+		{ PORT100_IN_PROT_BITWISE_AC_RECV_MODE,    0 },
+		{ PORT100_IN_PROT_VALID_BIT_NUMBER,        8 },
+		{ PORT100_IN_PROT_CRYPTO1,                 0 },
+		{ PORT100_IN_PROT_ADD_SOF,                 1 },
+		{ PORT100_IN_PROT_CHECK_SOF,               1 },
+		{ PORT100_IN_PROT_ADD_EOF,                 1 },
+		{ PORT100_IN_PROT_CHECK_EOF,               1 },
+		{ PORT100_IN_PROT_DEAF_TIME,               4 },
+		{ PORT100_IN_PROT_CRM,                     0 },
+		{ PORT100_IN_PROT_CRM_MIN_LEN,             0 },
+		{ PORT100_IN_PROT_T1_TAG_FRAME,            0 },
+		{ PORT100_IN_PROT_RFCA,                    0 },
+		{ PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 },
+		{ PORT100_IN_PROT_END,                     0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCB_T4T] = {
+		/* nfc_digital_framing_nfcb */
+		{ PORT100_IN_PROT_END,                     0 },
 	},
 	/* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */
 	[NFC_DIGITAL_FRAMING_LAST] = {

drivers/nfc/trf7970a.c

···
 
 #define TRF7970A_SUPPORTED_PROTOCOLS \
 		(NFC_PROTO_MIFARE_MASK | NFC_PROTO_ISO14443_MASK |	\
-		 NFC_PROTO_ISO14443_B_MASK | NFC_PROTO_ISO15693_MASK)
+		 NFC_PROTO_ISO14443_B_MASK | NFC_PROTO_FELICA_MASK | \
+		 NFC_PROTO_ISO15693_MASK)
 
 #define TRF7970A_AUTOSUSPEND_DELAY		30000 /* 30 seconds */
 
···
 		trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_14443B_106;
 		trf->modulator_sys_clk_ctrl = TRF7970A_MODULATOR_DEPTH_ASK10;
 		break;
+	case NFC_DIGITAL_RF_TECH_212F:
+		trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_FELICA_212;
+		trf->modulator_sys_clk_ctrl = TRF7970A_MODULATOR_DEPTH_ASK10;
+		break;
+	case NFC_DIGITAL_RF_TECH_424F:
+		trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_FELICA_424;
+		trf->modulator_sys_clk_ctrl = TRF7970A_MODULATOR_DEPTH_ASK10;
+		break;
 	case NFC_DIGITAL_RF_TECH_ISO15693:
 		trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_15693_SGL_1OF4_2648;
 		trf->modulator_sys_clk_ctrl = TRF7970A_MODULATOR_DEPTH_OOK;
···
 	case NFC_DIGITAL_FRAMING_NFCA_T4T:
 	case NFC_DIGITAL_FRAMING_NFCB:
 	case NFC_DIGITAL_FRAMING_NFCB_T4T:
+	case NFC_DIGITAL_FRAMING_NFCF:
+	case NFC_DIGITAL_FRAMING_NFCF_T3T:
 	case NFC_DIGITAL_FRAMING_ISO15693_INVENTORY:
 	case NFC_DIGITAL_FRAMING_ISO15693_T5T:
 		trf->tx_cmd = TRF7970A_CMD_TRANSMIT;

include/linux/ieee80211.h

···
 	WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
 	WLAN_EID_MULTIPLE_BSSID = 71,
 	WLAN_EID_BSS_COEX_2040 = 72,
+	WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
 	WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
 	WLAN_EID_RIC_DESCRIPTOR = 75,
 	WLAN_EID_MMIE = 76,

include/net/bluetooth/hci.h

···
 	__le16   window;
 } __packed;
 
+#define HCI_OP_READ_TX_POWER		0x0c2d
+struct hci_cp_read_tx_power {
+	__le16   handle;
+	__u8     type;
+} __packed;
+struct hci_rp_read_tx_power {
+	__u8     status;
+	__le16   handle;
+	__s8     tx_power;
+} __packed;
+
 #define HCI_OP_READ_PAGE_SCAN_TYPE	0x0c46
 struct hci_rp_read_page_scan_type {
 	__u8     status;
···
 #define HCI_OP_WRITE_PAGE_SCAN_TYPE	0x0c47
 	#define PAGE_SCAN_TYPE_STANDARD		0x00
 	#define PAGE_SCAN_TYPE_INTERLACED	0x01
+
+#define HCI_OP_READ_RSSI		0x1405
+struct hci_cp_read_rssi {
+	__le16   handle;
+} __packed;
+struct hci_rp_read_rssi {
+	__u8     status;
+	__le16   handle;
+	__s8     rssi;
+} __packed;
 
 #define HCI_OP_READ_LOCAL_AMP_INFO	0x1409
 struct hci_rp_read_local_amp_info {

include/net/bluetooth/hci_core.h

···
 /* Default LE RPA expiry time, 15 minutes */
 #define HCI_DEFAULT_RPA_TIMEOUT		(15 * 60)
 
+/* Default min/max age of connection information (1s/3s) */
+#define DEFAULT_CONN_INFO_MIN_AGE	1000
+#define DEFAULT_CONN_INFO_MAX_AGE	3000
+
 struct amp_assoc {
 	__u16	len;
 	__u16	offset;
···
 	__u16		le_conn_min_interval;
 	__u16		le_conn_max_interval;
 	__u16		discov_interleaved_timeout;
+	__u16		conn_info_min_age;
+	__u16		conn_info_max_age;
 	__u8		ssp_debug_mode;
 
 	__u16		devid_source;
···
 	__u16		setting;
 	__u16		le_conn_min_interval;
 	__u16		le_conn_max_interval;
+	__s8		rssi;
+	__s8		tx_power;
+	__s8		max_tx_power;
 	unsigned long	flags;
+
+	unsigned long	conn_info_timestamp;
 
 	__u8		remote_cap;
 	__u8		remote_auth;

include/net/bluetooth/mgmt.h

···
 } __packed;
 #define MGMT_LOAD_LINK_KEYS_SIZE	3
 
+#define MGMT_LTK_UNAUTHENTICATED	0x00
+#define MGMT_LTK_AUTHENTICATED		0x01
+
 struct mgmt_ltk_info {
 	struct mgmt_addr_info addr;
 	__u8	type;
···
 	struct mgmt_irk_info irks[0];
 } __packed;
 #define MGMT_LOAD_IRKS_SIZE		2
+
+#define MGMT_OP_GET_CONN_INFO		0x0031
+struct mgmt_cp_get_conn_info {
+	struct mgmt_addr_info addr;
+} __packed;
+#define MGMT_GET_CONN_INFO_SIZE		MGMT_ADDR_INFO_SIZE
+struct mgmt_rp_get_conn_info {
+	struct mgmt_addr_info addr;
+	__s8	rssi;
+	__s8	tx_power;
+	__s8	max_tx_power;
+} __packed;
 
 #define MGMT_EV_CMD_COMPLETE		0x0001
 struct mgmt_ev_cmd_complete {

include/net/bluetooth/rfcomm.h

···
 	struct sk_buff_head   tx_queue;
 	struct timer_list     timer;
 
-	spinlock_t    lock;
+	struct mutex  lock;
 	unsigned long state;
 	unsigned long flags;
 	atomic_t      refcnt;
···
 void rfcomm_dlc_accept(struct rfcomm_dlc *d);
 struct rfcomm_dlc *rfcomm_dlc_exists(bdaddr_t *src, bdaddr_t *dst, u8 channel);
 
-#define rfcomm_dlc_lock(d)     spin_lock(&d->lock)
-#define rfcomm_dlc_unlock(d)   spin_unlock(&d->lock)
+#define rfcomm_dlc_lock(d)     mutex_lock(&d->lock)
+#define rfcomm_dlc_unlock(d)   mutex_unlock(&d->lock)
 
 static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
 {

include/net/mac80211.h

···
 };
 
 /**
+ * enum ieee80211_chanctx_switch_mode - channel context switch mode
+ * @CHANCTX_SWMODE_REASSIGN_VIF: Both old and new contexts already
+ *	exist (and will continue to exist), but the virtual interface
+ *	needs to be switched from one to the other.
+ * @CHANCTX_SWMODE_SWAP_CONTEXTS: The old context exists but will stop
+ *      to exist with this call, the new context doesn't exist but
+ *      will be active after this call, the virtual interface switches
+ *      from the old to the new (note that the driver may of course
+ *      implement this as an on-the-fly chandef switch of the existing
+ *      hardware context, but the mac80211 pointer for the old context
+ *      will cease to exist and only the new one will later be used
+ *      for changes/removal.)
+ */
+enum ieee80211_chanctx_switch_mode {
+	CHANCTX_SWMODE_REASSIGN_VIF,
+	CHANCTX_SWMODE_SWAP_CONTEXTS,
+};
+
+/**
+ * struct ieee80211_vif_chanctx_switch - vif chanctx switch information
+ *
+ * This is structure is used to pass information about a vif that
+ * needs to switch from one chanctx to another.  The
+ * &ieee80211_chanctx_switch_mode defines how the switch should be
+ * done.
+ *
+ * @vif: the vif that should be switched from old_ctx to new_ctx
+ * @old_ctx: the old context to which the vif was assigned
+ * @new_ctx: the new context to which the vif must be assigned
+ */
+struct ieee80211_vif_chanctx_switch {
+	struct ieee80211_vif *vif;
+	struct ieee80211_chanctx_conf *old_ctx;
+	struct ieee80211_chanctx_conf *new_ctx;
+};
+
+/**
  * enum ieee80211_bss_change - BSS change notification flags
  *
  * These flags are used with the bss_info_changed() callback
···
  *	to vif. Possible use is for hw queue remapping.
  * @unassign_vif_chanctx: Notifies device driver about channel context being
  *	unbound from vif.
+ * @switch_vif_chanctx: switch a number of vifs from one chanctx to
+ *	another, as specified in the list of
+ *	@ieee80211_vif_chanctx_switch passed to the driver, according
+ *	to the mode defined in &ieee80211_chanctx_switch_mode.
+ *
  * @start_ap: Start operation on the AP interface, this is called after all the
  *	information in bss_conf is set and beacon can be retrieved. A channel
  *	context is bound before this is called. Note that if the driver uses
···
 	void (*unassign_vif_chanctx)(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_chanctx_conf *ctx);
+	int (*switch_vif_chanctx)(struct ieee80211_hw *hw,
+				  struct ieee80211_vif_chanctx_switch *vifs,
+				  int n_vifs,
+				  enum ieee80211_chanctx_switch_mode mode);
 
 	void (*restart_complete)(struct ieee80211_hw *hw);
 

net/bluetooth/hci_conn.c

···
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
 
 #include "smp.h"
 #include "a2mp.h"
···
 	conn->io_capability = hdev->io_capability;
 	conn->remote_auth = 0xff;
 	conn->key_type = 0xff;
+	conn->tx_power = HCI_TX_POWER_INVALID;
+	conn->max_tx_power = HCI_TX_POWER_INVALID;
 
 	set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
 	conn->disc_timeout = HCI_DISCONN_TIMEOUT;

net/bluetooth/hci_core.c

···
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
 
 #include "smp.h"
 
···
 
 DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
 			sniff_max_interval_set, "%llu\n");
+
+static int conn_info_min_age_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	if (val == 0 || val > hdev->conn_info_max_age)
+		return -EINVAL;
+
+	hci_dev_lock(hdev);
+	hdev->conn_info_min_age = val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int conn_info_min_age_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->conn_info_min_age;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get,
+			conn_info_min_age_set, "%llu\n");
+
+static int conn_info_max_age_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	if (val == 0 || val < hdev->conn_info_min_age)
+		return -EINVAL;
+
+	hci_dev_lock(hdev);
+	hdev->conn_info_max_age = val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int conn_info_max_age_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->conn_info_max_age;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get,
+			conn_info_max_age_set, "%llu\n");
 
 static int identity_show(struct seq_file *f, void *p)
 {
···
 	debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev,
 			    &blacklist_fops);
 	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
+
+	debugfs_create_file("conn_info_min_age", 0644, hdev->debugfs, hdev,
+			    &conn_info_min_age_fops);
+	debugfs_create_file("conn_info_max_age", 0644, hdev->debugfs, hdev,
+			    &conn_info_max_age_fops);
 
 	if (lmp_bredr_capable(hdev)) {
 		debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
···
 
 	hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT;
 	hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT;
+	hdev->conn_info_min_age = DEFAULT_CONN_INFO_MIN_AGE;
+	hdev->conn_info_max_age = DEFAULT_CONN_INFO_MAX_AGE;
 
 	mutex_init(&hdev->lock);
 	mutex_init(&hdev->req_lock);

net/bluetooth/hci_event.c

···
 	amp_write_rem_assoc_continue(hdev, rp->phy_handle);
 }
 
+static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_rssi *rp = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
+	if (conn)
+		conn->rssi = rp->rssi;
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_cp_read_tx_power *sent;
+	struct hci_rp_read_tx_power *rp = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
+	if (!sent)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
+	if (!conn)
+		goto unlock;
+
+	switch (sent->type) {
+	case 0x00:
+		conn->tx_power = rp->tx_power;
+		break;
+	case 0x01:
+		conn->max_tx_power = rp->tx_power;
+		break;
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 {
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
···
 
 	case HCI_OP_WRITE_REMOTE_AMP_ASSOC:
 		hci_cc_write_remote_amp_assoc(hdev, skb);
+		break;
+
+	case HCI_OP_READ_RSSI:
+		hci_cc_read_rssi(hdev, skb);
+		break;
+
+	case HCI_OP_READ_TX_POWER:
+		hci_cc_read_tx_power(hdev, skb);
 		break;
 
 	default:

net/bluetooth/mgmt.c

···
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/mgmt.h>
 
 #include "smp.h"
 
 #define MGMT_VERSION	1
-#define MGMT_REVISION	5
+#define MGMT_REVISION	6
 
 static const u16 mgmt_commands[] = {
 	MGMT_OP_READ_INDEX_LIST,
···
 	MGMT_OP_SET_DEBUG_KEYS,
 	MGMT_OP_SET_PRIVACY,
 	MGMT_OP_LOAD_IRKS,
+	MGMT_OP_GET_CONN_INFO,
 };
 
 static const u16 mgmt_events[] = {
···
 
 	for (i = 0; i < key_count; i++) {
 		struct mgmt_ltk_info *key = &cp->keys[i];
-		u8 type, addr_type;
+		u8 type, addr_type, authenticated;
 
 		if (key->addr.type == BDADDR_LE_PUBLIC)
 			addr_type = ADDR_LE_DEV_PUBLIC;
···
 		else
 			type = HCI_SMP_LTK_SLAVE;
 
+		if (key->type == MGMT_LTK_UNAUTHENTICATED)
+			authenticated = 0x00;
+		else
+			authenticated = 0x01;
+
 		hci_add_ltk(hdev, &key->addr.bdaddr, addr_type, type,
-			    key->type, key->val, key->enc_size, key->ediv,
+			    authenticated, key->val, key->enc_size, key->ediv,
 			    key->rand);
 	}
 
···
 
 	hci_dev_unlock(hdev);
 
+	return err;
+}
+
+struct cmd_conn_lookup {
+	struct hci_conn *conn;
+	bool valid_tx_power;
+	u8 mgmt_status;
+};
+
+static void get_conn_info_complete(struct pending_cmd *cmd, void *data)
+{
+	struct cmd_conn_lookup *match = data;
+	struct mgmt_cp_get_conn_info *cp;
+	struct mgmt_rp_get_conn_info rp;
+	struct hci_conn *conn = cmd->user_data;
+
+	if (conn != match->conn)
+		return;
+
+	cp = (struct mgmt_cp_get_conn_info *) cmd->param;
+
+	memset(&rp, 0, sizeof(rp));
+	bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
+	rp.addr.type = cp->addr.type;
+
+	if (!match->mgmt_status) {
+		rp.rssi = conn->rssi;
+
+		if (match->valid_tx_power) {
+			rp.tx_power = conn->tx_power;
+			rp.max_tx_power = conn->max_tx_power;
+		} else {
+			rp.tx_power = HCI_TX_POWER_INVALID;
+			rp.max_tx_power = HCI_TX_POWER_INVALID;
+		}
+	}
+
+	cmd_complete(cmd->sk, cmd->index, MGMT_OP_GET_CONN_INFO,
+		     match->mgmt_status, &rp, sizeof(rp));
+
+	hci_conn_drop(conn);
+
+	mgmt_pending_remove(cmd);
+}
+
+static void conn_info_refresh_complete(struct hci_dev *hdev, u8 status)
+{
+	struct hci_cp_read_rssi *cp;
+	struct hci_conn *conn;
+	struct cmd_conn_lookup match;
+	u16 handle;
+
+	BT_DBG("status 0x%02x", status);
+
+	hci_dev_lock(hdev);
+
+	/* TX power data is valid in case request completed successfully,
+	 * otherwise we assume it's not valid. At the moment we assume that
+	 * either both or none of current and max values are valid to keep code
+	 * simple.
+	 */
+	match.valid_tx_power = !status;
+
+	/* Commands sent in request are either Read RSSI or Read Transmit Power
+	 * Level so we check which one was last sent to retrieve connection
+	 * handle.  Both commands have handle as first parameter so it's safe to
+	 * cast data on the same command struct.
+	 *
+	 * First command sent is always Read RSSI and we fail only if it fails.
+	 * In other case we simply override error to indicate success as we
+	 * already remembered if TX power value is actually valid.
+	 */
+	cp = hci_sent_cmd_data(hdev, HCI_OP_READ_RSSI);
+	if (!cp) {
+		cp = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
+		status = 0;
+	}
+
+	if (!cp) {
+		BT_ERR("invalid sent_cmd in response");
+		goto unlock;
+	}
+
+	handle = __le16_to_cpu(cp->handle);
+	conn = hci_conn_hash_lookup_handle(hdev, handle);
+	if (!conn) {
+		BT_ERR("unknown handle (%d) in response", handle);
+		goto unlock;
+	}
+
+	match.conn = conn;
+	match.mgmt_status = mgmt_status(status);
+
+	/* Cache refresh is complete, now reply for mgmt request for given
+	 * connection only.
+	 */
+	mgmt_pending_foreach(MGMT_OP_GET_CONN_INFO, hdev,
+			     get_conn_info_complete, &match);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
+			 u16 len)
+{
+	struct mgmt_cp_get_conn_info *cp = data;
+	struct mgmt_rp_get_conn_info rp;
+	struct hci_conn *conn;
+	unsigned long conn_info_age;
+	int err = 0;
+
+	BT_DBG("%s", hdev->name);
+
+	memset(&rp, 0, sizeof(rp));
+	bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
+	rp.addr.type = cp->addr.type;
+
+	if (!bdaddr_type_is_valid(cp->addr.type))
+		return cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
+				    MGMT_STATUS_INVALID_PARAMS,
+				    &rp, sizeof(rp));
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
+				   MGMT_STATUS_NOT_POWERED, &rp, sizeof(rp));
+		goto unlock;
+	}
+
+	if (cp->addr.type == BDADDR_BREDR)
+		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);
+
+	if (!conn || conn->state != BT_CONNECTED) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
+				   MGMT_STATUS_NOT_CONNECTED, &rp, sizeof(rp));
+		goto unlock;
+	}
+
+	/* To avoid client trying to guess when to poll again for information we
+	 * calculate conn info age as random value between min/max set in hdev.
+	 */
+	conn_info_age = hdev->conn_info_min_age +
+			prandom_u32_max(hdev->conn_info_max_age -
+					hdev->conn_info_min_age);
+
+	/* Query controller to refresh cached values if they are too old or were
+	 * never read.
+	 */
+	if (time_after(jiffies, conn->conn_info_timestamp +
+		       msecs_to_jiffies(conn_info_age)) ||
+	    !conn->conn_info_timestamp) {
+		struct hci_request req;
+		struct hci_cp_read_tx_power req_txp_cp;
+		struct hci_cp_read_rssi req_rssi_cp;
+		struct pending_cmd *cmd;
+
+		hci_req_init(&req, hdev);
+		req_rssi_cp.handle = cpu_to_le16(conn->handle);
+		hci_req_add(&req, HCI_OP_READ_RSSI, sizeof(req_rssi_cp),
+			    &req_rssi_cp);
+
+		/* For LE links TX power does not change thus we don't need to
+		 * query for it once value is known.
+		 */
+		if (!bdaddr_type_is_le(cp->addr.type) ||
+		    conn->tx_power == HCI_TX_POWER_INVALID) {
+			req_txp_cp.handle = cpu_to_le16(conn->handle);
+			req_txp_cp.type = 0x00;
+			hci_req_add(&req, HCI_OP_READ_TX_POWER,
+				    sizeof(req_txp_cp), &req_txp_cp);
+		}
+
+		/* Max TX power needs to be read only once per connection */
+		if (conn->max_tx_power == HCI_TX_POWER_INVALID) {
+			req_txp_cp.handle = cpu_to_le16(conn->handle);
+			req_txp_cp.type = 0x01;
+			hci_req_add(&req, HCI_OP_READ_TX_POWER,
+				    sizeof(req_txp_cp), &req_txp_cp);
+		}
+
+		err = hci_req_run(&req, conn_info_refresh_complete);
+		if (err < 0)
+			goto unlock;
+
+		cmd = mgmt_pending_add(sk, MGMT_OP_GET_CONN_INFO, hdev,
+				       data, len);
+		if (!cmd) {
+			err = -ENOMEM;
+			goto unlock;
+		}
+
+		hci_conn_hold(conn);
+		cmd->user_data = conn;
+
+		conn->conn_info_timestamp = jiffies;
+	} else {
+		/* Cache is valid, just reply with values cached in hci_conn */
+		rp.rssi = conn->rssi;
+		rp.tx_power = conn->tx_power;
+		rp.max_tx_power = conn->max_tx_power;
+
+		err = cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
+				   MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
 	return err;
 }
 
···
 	{ set_debug_keys,         false, MGMT_SETTING_SIZE },
 	{ set_privacy,            false, MGMT_SET_PRIVACY_SIZE },
 	{ load_irks,              true,  MGMT_LOAD_IRKS_SIZE },
+	{ get_conn_info,          false, MGMT_GET_CONN_INFO_SIZE },
 };
 
 
···
 	mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
 }
 
+static u8 mgmt_ltk_type(struct smp_ltk *ltk)
+{
+	if (ltk->authenticated)
+		return MGMT_LTK_AUTHENTICATED;
+
+	return MGMT_LTK_UNAUTHENTICATED;
+}
+
 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent)
 {
 	struct mgmt_ev_new_long_term_key ev;
···
 
 	bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
 	ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type);
-	ev.key.type = key->authenticated;
+	ev.key.type = mgmt_ltk_type(key);
 	ev.key.enc_size = key->enc_size;
 	ev.key.ediv = key->ediv;
 	ev.key.rand = key->rand;

net/bluetooth/rfcomm/core.c

···
 	setup_timer(&d->timer, rfcomm_dlc_timeout, (unsigned long)d);
 
 	skb_queue_head_init(&d->tx_queue);
-	spin_lock_init(&d->lock);
+	mutex_init(&d->lock);
 	atomic_set(&d->refcnt, 1);
 
 	rfcomm_dlc_clear_state(d);

net/bluetooth/rfcomm/tty.c

···
 };
 
 static LIST_HEAD(rfcomm_dev_list);
-static DEFINE_SPINLOCK(rfcomm_dev_lock);
+static DEFINE_MUTEX(rfcomm_dev_lock);
 
 static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb);
 static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err);
···
 	if (dev->tty_dev)
 		tty_unregister_device(rfcomm_tty_driver, dev->id);
 
-	spin_lock(&rfcomm_dev_lock);
+	mutex_lock(&rfcomm_dev_lock);
 	list_del(&dev->list);
-	spin_unlock(&rfcomm_dev_lock);
+	mutex_unlock(&rfcomm_dev_lock);
 
 	kfree(dev);
 
···
 {
 	struct rfcomm_dev *dev;
 
-	spin_lock(&rfcomm_dev_lock);
+	mutex_lock(&rfcomm_dev_lock);
 
 	dev = __rfcomm_dev_lookup(id);
 
 	if (dev && !tty_port_get(&dev->port))
 		dev = NULL;
 
-	spin_unlock(&rfcomm_dev_lock);
+	mutex_unlock(&rfcomm_dev_lock);
 
 	return dev;
 }
···
 	if (!dev)
 		return ERR_PTR(-ENOMEM);
 
-	spin_lock(&rfcomm_dev_lock);
+	mutex_lock(&rfcomm_dev_lock);
 
 	if (req->dev_id < 0) {
 		dev->id = 0;
···
 	   holds reference to this module. */
 	__module_get(THIS_MODULE);
 
-	spin_unlock(&rfcomm_dev_lock);
+	mutex_unlock(&rfcomm_dev_lock);
 	return dev;
 
 out:
-	spin_unlock(&rfcomm_dev_lock);
+	mutex_unlock(&rfcomm_dev_lock);
 	kfree(dev);
 	return ERR_PTR(err);
 }
···
 
 	di = dl->dev_info;
 
-	spin_lock(&rfcomm_dev_lock);
+	mutex_lock(&rfcomm_dev_lock);
 
 	list_for_each_entry(dev, &rfcomm_dev_list, list) {
 		if (!tty_port_get(&dev->port))
···
 			break;
 	}
 
-	spin_unlock(&rfcomm_dev_lock);
+	mutex_unlock(&rfcomm_dev_lock);
 
 	dl->dev_num = n;
 	size = sizeof(*dl) + n * sizeof(*di);

net/bluetooth/smp.c

···
 
 #define AUTH_REQ_MASK   0x07
 
+#define SMP_FLAG_TK_VALID	1
+#define SMP_FLAG_CFM_PENDING	2
+#define SMP_FLAG_MITM_AUTH	3
+#define SMP_FLAG_COMPLETE	4
+#define SMP_FLAG_INITIATOR	5
+
+struct smp_chan {
+	struct l2cap_conn *conn;
+	u8		preq[7]; /* SMP Pairing Request */
+	u8		prsp[7]; /* SMP Pairing Response */
+	u8		prnd[16]; /* SMP Pairing Random (local) */
+	u8		rrnd[16]; /* SMP Pairing Random (remote) */
+	u8		pcnf[16]; /* SMP Pairing Confirm */
+	u8		tk[16]; /* SMP Temporary Key */
+	u8		enc_key_size;
+	u8		remote_key_dist;
+	bdaddr_t	id_addr;
+	u8		id_addr_type;
+	u8		irk[16];
+	struct smp_csrk	*csrk;
+	struct smp_csrk	*slave_csrk;
+	struct smp_ltk	*ltk;
+	struct smp_ltk	*slave_ltk;
+	struct smp_irk	*remote_irk;
+	unsigned long	flags;
+};
+
 static inline void swap128(const u8 src[16], u8 dst[16])
 {
 	int i;
···
 
 	/* Initialize key for JUST WORKS */
 	memset(smp->tk, 0, sizeof(smp->tk));
-	clear_bit(SMP_FLAG_TK_VALID, &smp->smp_flags);
+	clear_bit(SMP_FLAG_TK_VALID, &smp->flags);
 
 	BT_DBG("tk_request: auth:%d lcl:%d rem:%d", auth, local_io, remote_io);
 
···
 		method = JUST_WORKS;
 
 	/* Don't confirm locally initiated pairing attempts */
-	if (method == JUST_CFM && test_bit(SMP_FLAG_INITIATOR,
-					   &smp->smp_flags))
+	if (method == JUST_CFM && test_bit(SMP_FLAG_INITIATOR, &smp->flags))
 		method = JUST_WORKS;
 
 	/* If Just Works, Continue with Zero TK */
 	if (method == JUST_WORKS) {
-		set_bit(SMP_FLAG_TK_VALID, &smp->smp_flags);
+		set_bit(SMP_FLAG_TK_VALID, &smp->flags);
 		return 0;
 	}
 
 	/* Not Just Works/Confirm results in MITM Authentication */
 	if (method != JUST_CFM)
-		set_bit(SMP_FLAG_MITM_AUTH, &smp->smp_flags);
+		set_bit(SMP_FLAG_MITM_AUTH, &smp->flags);
 
 	/* If both devices have Keyoard-Display I/O, the master
 	 * Confirms and the slave Enters the passkey.
···
 		passkey %= 1000000;
 		put_unaligned_le32(passkey, smp->tk);
 		BT_DBG("PassKey: %d", passkey);
-		set_bit(SMP_FLAG_TK_VALID, &smp->smp_flags);
+		set_bit(SMP_FLAG_TK_VALID, &smp->flags);
 	}
 
 	hci_dev_lock(hcon->hdev);
···
 	return ret;
 }
 
-static void confirm_work(struct work_struct *work)
+static u8 smp_confirm(struct smp_chan *smp)
 {
-	struct smp_chan *smp = container_of(work, struct smp_chan, confirm);
 	struct l2cap_conn *conn = smp->conn;
 	struct hci_dev *hdev = conn->hcon->hdev;
 	struct crypto_blkcipher *tfm = hdev->tfm_aes;
 	struct smp_cmd_pairing_confirm cp;
 	int ret;
-	u8 reason;
 
 	BT_DBG("conn %p", conn);
 
···
 
 	hci_dev_unlock(hdev);
 
-	if (ret) {
-		reason = SMP_UNSPECIFIED;
-		goto error;
-	}
+	if (ret)
+		return SMP_UNSPECIFIED;
 
-	clear_bit(SMP_FLAG_CFM_PENDING, &smp->smp_flags);
+	clear_bit(SMP_FLAG_CFM_PENDING, &smp->flags);
 
 	smp_send_cmd(smp->conn, SMP_CMD_PAIRING_CONFIRM, sizeof(cp), &cp);
 
-	return;
-
-error:
-	smp_failure(conn, reason);
+	return 0;
 }
 
-static void random_work(struct work_struct *work)
+static u8 smp_random(struct smp_chan *smp)
 {
-	struct smp_chan *smp = container_of(work, struct smp_chan, random);
 	struct l2cap_conn *conn = smp->conn;
 	struct hci_conn *hcon = conn->hcon;
 	struct hci_dev *hdev = hcon->hdev;
 	struct crypto_blkcipher *tfm = hdev->tfm_aes;
-	u8 reason, confirm[16];
+	u8 confirm[16];
 	int ret;
 
-	if (IS_ERR_OR_NULL(tfm)) {
-		reason = SMP_UNSPECIFIED;
-		goto error;
-	}
+	if (IS_ERR_OR_NULL(tfm))
+		return SMP_UNSPECIFIED;
 
 	BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
 
···
 
 	hci_dev_unlock(hdev);
 
-	if (ret) {
-		reason = SMP_UNSPECIFIED;
-		goto error;
-	}
+	if (ret)
+		return SMP_UNSPECIFIED;
 
 	if (memcmp(smp->pcnf, confirm, sizeof(smp->pcnf)) != 0) {
 		BT_ERR("Pairing failed (confirmation values mismatch)");
-		reason = SMP_CONFIRM_FAILED;
-		goto error;
+		return SMP_CONFIRM_FAILED;
 	}
 
 	if (hcon->out) {
···
 		memset(stk + smp->enc_key_size, 0,
 		       SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
 
-		if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags)) {
-			reason = SMP_UNSPECIFIED;
-			goto error;
-		}
+		if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags))
+			return SMP_UNSPECIFIED;
 
 		hci_le_start_enc(hcon, ediv, rand, stk);
 		hcon->enc_key_size = smp->enc_key_size;
···
 			    ediv, rand);
 	}
 
-	return;
-
-error:
-	smp_failure(conn, reason);
+	return 0;
 }
 
 static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
···
 	smp = kzalloc(sizeof(*smp), GFP_ATOMIC);
 	if (!smp)
 		return NULL;
-
-	INIT_WORK(&smp->confirm, confirm_work);
-	INIT_WORK(&smp->random, random_work);
 
 	smp->conn = conn;
 	conn->smp_chan = smp;
···
 
 	BUG_ON(!smp);
 
-	complete = test_bit(SMP_FLAG_COMPLETE, &smp->smp_flags);
+	complete = test_bit(SMP_FLAG_COMPLETE, &smp->flags);
 	mgmt_smp_complete(conn->hcon, complete);
 
 	kfree(smp->csrk);
···
 		put_unaligned_le32(value, smp->tk);
 		/* Fall Through */
 	case MGMT_OP_USER_CONFIRM_REPLY:
-		set_bit(SMP_FLAG_TK_VALID, &smp->smp_flags);
+		set_bit(SMP_FLAG_TK_VALID, &smp->flags);
 		break;
 	case MGMT_OP_USER_PASSKEY_NEG_REPLY:
 	case MGMT_OP_USER_CONFIRM_NEG_REPLY:
···
 	}
 
 	/* If it is our turn to send Pairing Confirm, do so now */
-	if (test_bit(SMP_FLAG_CFM_PENDING, &smp->smp_flags))
-		queue_work(hcon->hdev->workqueue, &smp->confirm);
+	if (test_bit(SMP_FLAG_CFM_PENDING, &smp->flags)) {
+		u8 rsp = smp_confirm(smp);
+		if (rsp)
+			smp_failure(conn, rsp);
+	}
 
 	return 0;
 }
···
 {
 	struct smp_cmd_pairing rsp, *req = (void *) skb->data;
 	struct smp_chan *smp;
-	u8 key_size;
-	u8 auth = SMP_AUTH_NONE;
+	u8 key_size, auth;
 	int ret;
 
 	BT_DBG("conn %p", conn);
 
 	if (skb->len < sizeof(*req))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	if (conn->hcon->link_mode & HCI_LM_MASTER)
 		return SMP_CMD_NOTSUPP;
···
 	skb_pull(skb, sizeof(*req));
 
 	/* We didn't start the pairing, so match remote */
-	if (req->auth_req & SMP_AUTH_BONDING)
-		auth = req->auth_req;
+	auth = req->auth_req;
 
 	conn->hcon->pending_sec_level = authreq_to_seclevel(auth);
 
···
 	if (ret)
 		return SMP_UNSPECIFIED;
 
-	clear_bit(SMP_FLAG_INITIATOR, &smp->smp_flags);
+	clear_bit(SMP_FLAG_INITIATOR, &smp->flags);
 
 	return 0;
 }
···
 {
 	struct smp_cmd_pairing *req, *rsp = (void *) skb->data;
 	struct smp_chan *smp = conn->smp_chan;
-	struct hci_dev *hdev = conn->hcon->hdev;
 	u8 key_size, auth = SMP_AUTH_NONE;
 	int ret;
 
 	BT_DBG("conn %p", conn);
 
 	if (skb->len < sizeof(*rsp))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	if (!(conn->hcon->link_mode & HCI_LM_MASTER))
 		return SMP_CMD_NOTSUPP;
···
 	if (ret)
 		return SMP_UNSPECIFIED;
 
-	set_bit(SMP_FLAG_CFM_PENDING, &smp->smp_flags);
+	set_bit(SMP_FLAG_CFM_PENDING, &smp->flags);
 
 	/* Can't compose response until we have been confirmed */
-	if (test_bit(SMP_FLAG_TK_VALID, &smp->smp_flags))
-		queue_work(hdev->workqueue, &smp->confirm);
+	if (test_bit(SMP_FLAG_TK_VALID, &smp->flags))
+		return smp_confirm(smp);
 
 	return 0;
 }
···
 static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb)
 {
 	struct smp_chan *smp = conn->smp_chan;
-	struct hci_dev *hdev = conn->hcon->hdev;
 
 	BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
 
 	if (skb->len < sizeof(smp->pcnf))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	memcpy(smp->pcnf, skb->data, sizeof(smp->pcnf));
 	skb_pull(skb, sizeof(smp->pcnf));
···
 	if (conn->hcon->out)
 		smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd),
 			     smp->prnd);
-	else if (test_bit(SMP_FLAG_TK_VALID, &smp->smp_flags))
-		queue_work(hdev->workqueue, &smp->confirm);
+	else if (test_bit(SMP_FLAG_TK_VALID, &smp->flags))
+		return smp_confirm(smp);
 	else
-		set_bit(SMP_FLAG_CFM_PENDING, &smp->smp_flags);
+		set_bit(SMP_FLAG_CFM_PENDING, &smp->flags);
 
 	return 0;
 }
···
 static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
 {
 	struct smp_chan *smp = conn->smp_chan;
-	struct hci_dev *hdev = conn->hcon->hdev;
 
 	BT_DBG("conn %p", conn);
 
 	if (skb->len < sizeof(smp->rrnd))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	memcpy(smp->rrnd, skb->data, sizeof(smp->rrnd));
 	skb_pull(skb, sizeof(smp->rrnd));
 
-	queue_work(hdev->workqueue, &smp->random);
-
-	return 0;
+	return smp_random(smp);
 }
 
 static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level)
···
 	BT_DBG("conn %p", conn);
 
 	if (skb->len < sizeof(*rp))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	if (!(conn->hcon->link_mode & HCI_LM_MASTER))
 		return SMP_CMD_NOTSUPP;
···
 
 	smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
 
-	clear_bit(SMP_FLAG_INITIATOR, &smp->smp_flags);
+	clear_bit(SMP_FLAG_INITIATOR, &smp->flags);
 
 	return 0;
 }
···
 		smp_send_cmd(conn, SMP_CMD_SECURITY_REQ, sizeof(cp), &cp);
 	}
 
-	set_bit(SMP_FLAG_INITIATOR, &smp->smp_flags);
+	set_bit(SMP_FLAG_INITIATOR, &smp->flags);
 
 done:
 	hcon->pending_sec_level = sec_level;
···
 	BT_DBG("conn %p", conn);
 
 	if (skb->len < sizeof(*rp))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	/* Ignore this PDU if it wasn't requested */
 	if (!(smp->remote_key_dist & SMP_DIST_ENC_KEY))
···
 	BT_DBG("conn %p", conn);
 
 	if (skb->len < sizeof(*rp))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	/* Ignore this PDU if it wasn't requested */
 	if (!(smp->remote_key_dist & SMP_DIST_ENC_KEY))
···
 	BT_DBG("");
 
 	if (skb->len < sizeof(*info))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	/* Ignore this PDU if it wasn't requested */
 	if (!(smp->remote_key_dist & SMP_DIST_ID_KEY))
···
 	BT_DBG("");
 
 	if (skb->len < sizeof(*info))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	/* Ignore this PDU if it wasn't requested */
 	if (!(smp->remote_key_dist & SMP_DIST_ID_KEY))
···
 	BT_DBG("conn %p", conn);
 
 	if (skb->len < sizeof(*rp))
-		return SMP_UNSPECIFIED;
+		return SMP_INVALID_PARAMS;
 
 	/* Ignore this PDU if it wasn't requested */
 	if (!(smp->remote_key_dist & SMP_DIST_SIGN))
···
 
 	clear_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags);
 	cancel_delayed_work_sync(&conn->security_timer);
-	set_bit(SMP_FLAG_COMPLETE, &smp->smp_flags);
+	set_bit(SMP_FLAG_COMPLETE, &smp->flags);
 	smp_notify_keys(conn);
 
 	smp_chan_destroy(conn);

net/bluetooth/smp.h

···
 #define SMP_CMD_NOTSUPP			0x07
 #define SMP_UNSPECIFIED			0x08
 #define SMP_REPEATED_ATTEMPTS		0x09
+#define SMP_INVALID_PARAMS		0x0a
 
 #define SMP_MIN_ENC_KEY_SIZE		7
 #define SMP_MAX_ENC_KEY_SIZE		16
-
-#define SMP_FLAG_TK_VALID	1
-#define SMP_FLAG_CFM_PENDING	2
-#define SMP_FLAG_MITM_AUTH	3
-#define SMP_FLAG_COMPLETE	4
-#define SMP_FLAG_INITIATOR	5
-
-struct smp_chan {
-	struct l2cap_conn *conn;
-	u8		preq[7]; /* SMP Pairing Request */
-	u8		prsp[7]; /* SMP Pairing Response */
-	u8		prnd[16]; /* SMP Pairing Random (local) */
-	u8		rrnd[16]; /* SMP Pairing Random (remote) */
-	u8		pcnf[16]; /* SMP Pairing Confirm */
-	u8		tk[16]; /* SMP Temporary Key */
-	u8		enc_key_size;
-	u8		remote_key_dist;
-	bdaddr_t	id_addr;
-	u8		id_addr_type;
-	u8		irk[16];
-	struct smp_csrk	*csrk;
-	struct smp_csrk	*slave_csrk;
-	struct smp_ltk	*ltk;
-	struct smp_ltk	*slave_ltk;
-	struct smp_irk	*remote_irk;
-	unsigned long	smp_flags;
-	struct work_struct confirm;
-	struct work_struct random;
-};
 
 /* SMP Commands */
 bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level);

net/mac80211/debugfs_netdev.c

···
 	ssize_t ret = -EINVAL;
 
 	read_lock(&dev_base_lock);
-	if (sdata->dev->reg_state == NETREG_REGISTERED)
-		ret = (*format)(sdata, buf, sizeof(buf));
+	ret = (*format)(sdata, buf, sizeof(buf));
 	read_unlock(&dev_base_lock);
 
 	if (ret >= 0)
···
 
 	ret = -ENODEV;
 	rtnl_lock();
-	if (sdata->dev->reg_state == NETREG_REGISTERED)
-		ret = (*write)(sdata, buf, count);
+	ret = (*write)(sdata, buf, count);
 	rtnl_unlock();
 
 	return ret;

net/mac80211/driver-ops.h

···
 	trace_drv_return_void(local);
 }
 
+static inline int
+drv_switch_vif_chanctx(struct ieee80211_local *local,
+		       struct ieee80211_vif_chanctx_switch *vifs,
+		       int n_vifs,
+		       enum ieee80211_chanctx_switch_mode mode)
+{
+	int ret = 0;
+	int i;
+
+	if (!local->ops->switch_vif_chanctx)
+		return -EOPNOTSUPP;
+
+	for (i = 0; i < n_vifs; i++) {
+		struct ieee80211_chanctx *new_ctx =
+			container_of(vifs[i].new_ctx,
+				     struct ieee80211_chanctx,
+				     conf);
+		struct ieee80211_chanctx *old_ctx =
+			container_of(vifs[i].old_ctx,
+				     struct ieee80211_chanctx,
+				     conf);
+
+		WARN_ON_ONCE(!old_ctx->driver_present);
+		WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS &&
+			      new_ctx->driver_present) ||
+			     (mode == CHANCTX_SWMODE_REASSIGN_VIF &&
+			      !new_ctx->driver_present));
+	}
+
+	trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode);
+	ret = local->ops->switch_vif_chanctx(&local->hw,
+					     vifs, n_vifs, mode);
+	trace_drv_return_int(local, ret);
+
+	if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
+		for (i = 0; i < n_vifs; i++) {
+			struct ieee80211_chanctx *new_ctx =
+				container_of(vifs[i].new_ctx,
+					     struct ieee80211_chanctx,
+					     conf);
+			struct ieee80211_chanctx *old_ctx =
+				container_of(vifs[i].old_ctx,
+					     struct ieee80211_chanctx,
+					     conf);
+
+			new_ctx->driver_present = true;
+			old_ctx->driver_present = false;
+		}
+	}
+
+	return ret;
+}
+
 static inline int drv_start_ap(struct ieee80211_local *local,
 			       struct ieee80211_sub_if_data *sdata)
 {

net/mac80211/ibss.c

···
 	sdata->u.ibss.control_port = params->control_port;
 	sdata->u.ibss.userspace_handles_dfs = params->userspace_handles_dfs;
 	sdata->u.ibss.basic_rates = params->basic_rates;
+	sdata->u.ibss.last_scan_completed = jiffies;
 
 	/* fix basic_rates if channel does not support these rates */
 	rate_flags = ieee80211_chandef_rate_flags(&params->chandef);

net/mac80211/iface.c

···
 	sdata->vif.type = NL80211_IFTYPE_MONITOR;
 	snprintf(sdata->name, IFNAMSIZ, "%s-monitor",
 		 wiphy_name(local->hw.wiphy));
+	sdata->wdev.iftype = NL80211_IFTYPE_MONITOR;
 
 	sdata->encrypt_headroom = IEEE80211_ENCRYPT_HEADROOM;
 
···
 	sdata->control_port_protocol = cpu_to_be16(ETH_P_PAE);
 	sdata->control_port_no_encrypt = false;
 	sdata->encrypt_headroom = IEEE80211_ENCRYPT_HEADROOM;
+	sdata->vif.bss_conf.idle = true;
 
 	sdata->noack_map = 0;
 

net/mac80211/sta_info.c

···
 
 	sta_dbg(sta->sdata, "Destroyed STA %pM\n", sta->sta.addr);
 
+	kfree(rcu_dereference_raw(sta->sta.rates));
 	kfree(sta);
 }
 

net/mac80211/status.c

···
  */
 #define STA_LOST_PKT_THRESHOLD	50
 
+static void ieee80211_lost_packet(struct sta_info *sta, struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+	/* This packet was aggregated but doesn't carry status info */
+	if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
+	    !(info->flags & IEEE80211_TX_STAT_AMPDU))
+		return;
+
+	if (++sta->lost_packets < STA_LOST_PKT_THRESHOLD)
+		return;
+
+	cfg80211_cqm_pktloss_notify(sta->sdata->dev, sta->sta.addr,
+				    sta->lost_packets, GFP_ATOMIC);
+	sta->lost_packets = 0;
+}
+
 void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 {
 	struct sk_buff *skb2;
···
 			if (info->flags & IEEE80211_TX_STAT_ACK) {
 				if (sta->lost_packets)
 					sta->lost_packets = 0;
-			} else if (++sta->lost_packets >= STA_LOST_PKT_THRESHOLD) {
-				cfg80211_cqm_pktloss_notify(sta->sdata->dev,
-							    sta->sta.addr,
-							    sta->lost_packets,
-							    GFP_ATOMIC);
-				sta->lost_packets = 0;
+			} else {
+				ieee80211_lost_packet(sta, skb);
 			}
 		}
 

net/mac80211/trace.h

···
 	)
 );
 
+#if !defined(__TRACE_VIF_ENTRY)
+#define __TRACE_VIF_ENTRY
+struct trace_vif_entry {
+	enum nl80211_iftype vif_type;
+	bool p2p;
+	char vif_name[IFNAMSIZ];
+} __packed;
+
+struct trace_chandef_entry {
+	u32 control_freq;
+	u32 chan_width;
+	u32 center_freq1;
+	u32 center_freq2;
+} __packed;
+
+struct trace_switch_entry {
+	struct trace_vif_entry vif;
+	struct trace_chandef_entry old_chandef;
+	struct trace_chandef_entry new_chandef;
+} __packed;
+
+#define SWITCH_ENTRY_ASSIGN(to, from) local_vifs[i].to = vifs[i].from
+#endif
+
+TRACE_EVENT(drv_switch_vif_chanctx,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_vif_chanctx_switch *vifs,
+		 int n_vifs, enum ieee80211_chanctx_switch_mode mode),
+	    TP_ARGS(local, vifs, n_vifs, mode),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		__field(int, n_vifs)
+		__field(u32, mode)
+		__dynamic_array(u8, vifs,
+				sizeof(struct trace_switch_entry) * n_vifs)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		__entry->n_vifs = n_vifs;
+		__entry->mode = mode;
+		{
+			struct trace_switch_entry *local_vifs =
+				__get_dynamic_array(vifs);
+			int i;
+
+			for (i = 0; i < n_vifs; i++) {
+				struct ieee80211_sub_if_data *sdata;
+
+				sdata = container_of(vifs[i].vif,
+						struct ieee80211_sub_if_data,
+						vif);
+
+				SWITCH_ENTRY_ASSIGN(vif.vif_type, vif->type);
+				SWITCH_ENTRY_ASSIGN(vif.p2p, vif->p2p);
+				strncpy(local_vifs[i].vif.vif_name,
+					sdata->name,
+					sizeof(local_vifs[i].vif.vif_name));
+				SWITCH_ENTRY_ASSIGN(old_chandef.control_freq,
+						old_ctx->def.chan->center_freq);
+				SWITCH_ENTRY_ASSIGN(old_chandef.chan_width,
+						    old_ctx->def.width);
+				SWITCH_ENTRY_ASSIGN(old_chandef.center_freq1,
+						    old_ctx->def.center_freq1);
+				SWITCH_ENTRY_ASSIGN(old_chandef.center_freq2,
+						    old_ctx->def.center_freq2);
+				SWITCH_ENTRY_ASSIGN(new_chandef.control_freq,
+						new_ctx->def.chan->center_freq);
+				SWITCH_ENTRY_ASSIGN(new_chandef.chan_width,
+						    new_ctx->def.width);
+				SWITCH_ENTRY_ASSIGN(new_chandef.center_freq1,
+						    new_ctx->def.center_freq1);
+				SWITCH_ENTRY_ASSIGN(new_chandef.center_freq2,
+						    new_ctx->def.center_freq2);
+			}
+		}
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT " n_vifs:%d mode:%d",
+		LOCAL_PR_ARG, __entry->n_vifs, __entry->mode
+	)
+);
+
 DECLARE_EVENT_CLASS(local_sdata_chanctx,
 	TP_PROTO(struct ieee80211_local *local,
 		 struct ieee80211_sub_if_data *sdata,

net/nfc/digital_core.c

···
 
 void digital_poll_next_tech(struct nfc_digital_dev *ddev)
 {
+	u8 rand_mod;
+
 	digital_switch_rf(ddev, 0);
 
 	mutex_lock(&ddev->poll_lock);
···
 		return;
 	}
 
-	ddev->poll_tech_index = (ddev->poll_tech_index + 1) %
-				ddev->poll_tech_count;
+	get_random_bytes(&rand_mod, sizeof(rand_mod));
+	ddev->poll_tech_index = rand_mod % ddev->poll_tech_count;
 
 	mutex_unlock(&ddev->poll_lock);
 

net/nfc/digital_dep.c

···
 
 	ddev->skb_add_crc(skb);
 
-	digital_in_send_cmd(ddev, skb, 500, digital_in_recv_atr_res, target);
-
-	return 0;
+	return digital_in_send_cmd(ddev, skb, 500, digital_in_recv_atr_res,
+				   target);
 }
 
 static int digital_in_send_rtox(struct nfc_digital_dev *ddev,

net/nfc/digital_technology.c

···
 		digital_poll_next_tech(ddev);
 }
 
-int digital_in_send_attrib_req(struct nfc_digital_dev *ddev,
+static int digital_in_send_attrib_req(struct nfc_digital_dev *ddev,
 			       struct nfc_target *target,
 			       struct digital_sensb_res *sensb_res)
 {

net/nfc/rawsock.c

···
 	.lock = __RW_LOCK_UNLOCKED(raw_sk_list.lock)
 };
 
-void nfc_sock_link(struct nfc_sock_list *l, struct sock *sk)
+static void nfc_sock_link(struct nfc_sock_list *l, struct sock *sk)
 {
 	write_lock(&l->lock);
 	sk_add_node(sk, &l->head);
 	write_unlock(&l->lock);
 }
 
-void nfc_sock_unlink(struct nfc_sock_list *l, struct sock *sk)
+static void nfc_sock_unlink(struct nfc_sock_list *l, struct sock *sk)
 {
 	write_lock(&l->lock);
 	sk_del_node_init(sk);

net/wireless/core.c

···
 			    newname))
 		pr_err("failed to rename debugfs dir to %s!\n", newname);
 
-	nl80211_notify_dev_rename(rdev);
+	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
 
 	return 0;
 }
···
 		return res;
 	}
 
+	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
+
 	return 0;
 }
 EXPORT_SYMBOL(wiphy_register);
···
 		rfkill_unregister(rdev->rfkill);
 
 	rtnl_lock();
+	nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
 	rdev->wiphy.registered = false;
 
 	WARN_ON(!list_empty(&rdev->wdev_list));

net/wireless/genregdb.awk

···
 	sub(/,/, "", units)
 	dfs_cac = $9
 	if (units == "mW") {
-		if (power == 100) {
-			power = 20
-		} else if (power == 200) {
-			power = 23
-		} else if (power == 500) {
-			power = 27
-		} else if (power == 1000) {
-			power = 30
-		} else {
-			print "Unknown power value in database!"
-		}
+		power = 10 * log(power)/log(10)
 	} else {
 		dfs_cac = $8
 	}
···
 
 	}
 	flags = flags "0"
-	printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %d, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags
+	printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %.0f, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags
 	rules++
 }
 

net/wireless/nl80211.c

···
 };
 
 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
+			      enum nl80211_commands cmd,
 			      struct sk_buff *msg, u32 portid, u32 seq,
 			      int flags, struct nl80211_dump_wiphy_state *state)
 {
···
 				rdev->wiphy.mgmt_stypes;
 	u32 features;
 
-	hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
+	hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
 	if (!hdr)
 		return -ENOBUFS;
 
···
 	    nla_put_u32(msg, NL80211_ATTR_GENERATION,
 			cfg80211_rdev_list_generation))
 		goto nla_put_failure;
+
+	if (cmd != NL80211_CMD_NEW_WIPHY)
+		goto finish;
 
 	switch (state->split_start) {
 	case 0:
···
 		state->split_start = 0;
 		break;
 	}
+ finish:
 	return genlmsg_end(msg, hdr);
 
  nla_put_failure:
···
 			continue;
 		/* attempt to fit multiple wiphy data chunks into the skb */
 		do {
-			ret = nl80211_send_wiphy(rdev, skb,
+			ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
+						 skb,
 						 NETLINK_CB(cb->skb).portid,
 						 cb->nlh->nlmsg_seq,
 						 NLM_F_MULTI, state);
···
 	if (!msg)
 		return -ENOMEM;
 
-	if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0,
+	if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
+			       info->snd_portid, info->snd_seq, 0,
 			       &state) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
···
 
 /* notification functions */
 
-void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
+void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
+			  enum nl80211_commands cmd)
 {
 	struct sk_buff *msg;
 	struct nl80211_dump_wiphy_state state = {};
+
+	WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
+		cmd != NL80211_CMD_DEL_WIPHY);
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
-	if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
+	if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
 		nlmsg_free(msg);
 		return;
 	}

net/wireless/nl80211.h

···
 
 int nl80211_init(void);
 void nl80211_exit(void);
-void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
+void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
+			  enum nl80211_commands cmd);
 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
 			     struct wireless_dev *wdev);
 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,