From: Brian Gix <brian.gix@intel.com>
Date: Wed, 27 Oct 2021 16:58:51 -0700
Subject: Bluetooth: hci_sync: Convert MGMT_OP_SET_LE
Patch-mainline: v5.17-rc1
Git-commit: d81a494c43df66f053f7d1ec612e057eb99f34d4
References: jsc#PED-1407

Uses:
  hci_disable_advertising_sync
  hci_remove_ext_adv_instance_sync
  hci_write_le_host_supported_sync
  hci_setup_ext_adv_instance_sync
  hci_update_scan_rsp_data_sync

Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Lee, Chun-Yi <jlee@suse.com>
---
 include/net/bluetooth/hci_sync.h |    4 +
 net/bluetooth/hci_sync.c         |    3 -
 net/bluetooth/mgmt.c             |   85 +++++++++++++++++++--------------------
 3 files changed, 48 insertions(+), 44 deletions(-)

--- a/include/net/bluetooth/hci_sync.h
+++ b/include/net/bluetooth/hci_sync.h
@@ -75,6 +75,10 @@ int hci_read_clock_sync(struct hci_dev *
 int hci_write_fast_connectable_sync(struct hci_dev *hdev, bool enable);
 int hci_update_scan_sync(struct hci_dev *hdev);
 
+int hci_write_le_host_supported_sync(struct hci_dev *hdev, u8 le, u8 simul);
+int hci_remove_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance,
+				     struct sock *sk);
+
 int hci_dev_open_sync(struct hci_dev *hdev);
 int hci_dev_close_sync(struct hci_dev *hdev);
 
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -2149,8 +2149,7 @@ static int hci_write_ssp_mode_sync(struc
 	return hci_write_sc_support_sync(hdev, 0x01);
 }
 
-static int hci_write_le_host_supported_sync(struct hci_dev *hdev, u8 le,
-					    u8 simul)
+int hci_write_le_host_supported_sync(struct hci_dev *hdev, u8 le, u8 simul)
 {
 	struct hci_cp_write_le_host_supported cp;
 
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1902,18 +1902,17 @@ unlock:
 	return err;
 }
 
-static void le_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
+static void set_le_complete(struct hci_dev *hdev, void *data, int err)
 {
 	struct cmd_lookup match = { NULL, hdev };
+	u8 status = mgmt_status(err);
 
-	hci_dev_lock(hdev);
+	bt_dev_dbg(hdev, "err %d", err);
 
 	if (status) {
-		u8 mgmt_err = mgmt_status(status);
-
 		mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp,
-				     &mgmt_err);
-		goto unlock;
+							&status);
+		return;
 	}
 
 	mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
@@ -1922,39 +1921,54 @@ static void le_enable_complete(struct hc
 
 	if (match.sk)
 		sock_put(match.sk);
+}
+
+static int set_le_sync(struct hci_dev *hdev, void *data)
+{
+	struct mgmt_pending_cmd *cmd = data;
+	struct mgmt_mode *cp = cmd->param;
+	u8 val = !!cp->val;
+	int err;
+
+	if (!val) {
+		if (hci_dev_test_flag(hdev, HCI_LE_ADV))
+			hci_disable_advertising_sync(hdev);
+
+		if (ext_adv_capable(hdev))
+			hci_remove_ext_adv_instance_sync(hdev, 0, cmd->sk);
+	} else {
+		hci_dev_set_flag(hdev, HCI_LE_ENABLED);
+	}
+
+	err = hci_write_le_host_supported_sync(hdev, val, 0);
 
 	/* Make sure the controller has a good default for
 	 * advertising data. Restrict the update to when LE
 	 * has actually been enabled. During power on, the
 	 * update in powered_update_hci will take care of it.
 	 */
-	if (hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
-		struct hci_request req;
-		hci_req_init(&req, hdev);
+	if (!err && hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
 		if (ext_adv_capable(hdev)) {
-			int err;
+			int status;
 
-			err = __hci_req_setup_ext_adv_instance(&req, 0x00);
-			if (!err)
-				__hci_req_update_scan_rsp_data(&req, 0x00);
+			status = hci_setup_ext_adv_instance_sync(hdev, 0x00);
+			if (!status)
+				hci_update_scan_rsp_data_sync(hdev, 0x00);
 		} else {
-			__hci_req_update_adv_data(&req, 0x00);
-			__hci_req_update_scan_rsp_data(&req, 0x00);
+			hci_update_adv_data_sync(hdev, 0x00);
+			hci_update_scan_rsp_data_sync(hdev, 0x00);
 		}
-		hci_req_run(&req, NULL);
+
 		hci_update_passive_scan(hdev);
 	}
 
-unlock:
-	hci_dev_unlock(hdev);
+	return err;
 }
 
 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 {
 	struct mgmt_mode *cp = data;
-	struct hci_cp_write_le_host_supported hci_cp;
 	struct mgmt_pending_cmd *cmd;
-	struct hci_request req;
 	int err;
 	u8 val, enabled;
 
@@ -2024,33 +2038,20 @@ static int set_le(struct sock *sk, struc
 	}
 
 	cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len);
-	if (!cmd) {
+	if (!cmd)
 		err = -ENOMEM;
-		goto unlock;
-	}
-
-	hci_req_init(&req, hdev);
+	else
+		err = hci_cmd_sync_queue(hdev, set_le_sync, cmd,
+					 set_le_complete);
 
-	memset(&hci_cp, 0, sizeof(hci_cp));
-
-	if (val) {
-		hci_cp.le = val;
-		hci_cp.simul = 0x00;
-	} else {
-		if (hci_dev_test_flag(hdev, HCI_LE_ADV))
-			__hci_req_disable_advertising(&req);
+	if (err < 0) {
+		err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
+				      MGMT_STATUS_FAILED);
 
-		if (ext_adv_capable(hdev))
-			__hci_req_clear_ext_adv_sets(&req);
+		if (cmd)
+			mgmt_pending_remove(cmd);
 	}
 
-	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
-		    &hci_cp);
-
-	err = hci_req_run(&req, le_enable_complete);
-	if (err < 0)
-		mgmt_pending_remove(cmd);
-
 unlock:
 	hci_dev_unlock(hdev);
 	return err;