FAILED: patch "[PATCH] Bluetooth: hci_event: move wake reason storage into validated" failed to apply to 5.15-stable tree

index 286529d2e554..81d2f9a3eec9 100644
@@ -80,6 +80,10 @@ static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
 	return data;
 }
 
+static void hci_store_wake_reason(struct hci_dev *hdev,
+				  const bdaddr_t *bdaddr, u8 addr_type)
+	__must_hold(&hdev->lock);
+
 static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
 				struct sk_buff *skb)
 {

@@ -3111,6 +3115,7 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
 	bt_dev_dbg(hdev, "status 0x%2.2x", status);
 
 	hci_dev_lock(hdev);
+	hci_store_wake_reason(hdev, &ev->bdaddr, BDADDR_BREDR);
 
 	/* Check for existing connection:
 	 *

@@ -3274,6 +3279,10 @@ static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
 
 	bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
 
+	hci_dev_lock(hdev);
+	hci_store_wake_reason(hdev, &ev->bdaddr, BDADDR_BREDR);
+	hci_dev_unlock(hdev);
+
 	/* Reject incoming connection from device with same BD ADDR against
 	 * CVE-2020-26555
 	 */

@@ -5021,6 +5030,7 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
 	bt_dev_dbg(hdev, "status 0x%2.2x", status);
 
 	hci_dev_lock(hdev);
+	hci_store_wake_reason(hdev, &ev->bdaddr, BDADDR_BREDR);
 
 	conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
 	if (!conn) {

@@ -5713,6 +5723,7 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
 	int err;
 
 	hci_dev_lock(hdev);
+	hci_store_wake_reason(hdev, bdaddr, bdaddr_type);
 
 	/* All controllers implicitly stop advertising in the event of a
 	 * connection, so ensure that the state bit is cleared.

@@ -6005,6 +6016,7 @@ static void hci_le_past_received_evt(struct hci_dev *hdev, void *data,
 	bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
 
 	hci_dev_lock(hdev);
+	hci_store_wake_reason(hdev, &ev->bdaddr, ev->bdaddr_type);
 
 	hci_dev_clear_flag(hdev, HCI_PA_SYNC);
 

@@ -6403,6 +6415,8 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
 					info->length + 1))
 			break;
 
+		hci_store_wake_reason(hdev, &info->bdaddr, info->bdaddr_type);
+
 		if (info->length <= max_adv_len(hdev)) {
 			rssi = info->data[info->length];
 			process_adv_report(hdev, info->type, &info->bdaddr,

@@ -6491,6 +6505,8 @@ static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
 					info->length))
 			break;
 
+		hci_store_wake_reason(hdev, &info->bdaddr, info->bdaddr_type);
+
 		evt_type = __le16_to_cpu(info->type) & LE_EXT_ADV_EVT_TYPE_MASK;
 		legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
 

@@ -6536,6 +6552,7 @@ static void hci_le_pa_sync_established_evt(struct hci_dev *hdev, void *data,
 	bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
 
 	hci_dev_lock(hdev);
+	hci_store_wake_reason(hdev, &ev->bdaddr, ev->bdaddr_type);
 
 	hci_dev_clear_flag(hdev, HCI_PA_SYNC);
 

@@ -6834,6 +6851,8 @@ static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
 	for (i = 0; i < ev->num; i++) {
 		struct hci_ev_le_direct_adv_info *info = &ev->info[i];
 
+		hci_store_wake_reason(hdev, &info->bdaddr, info->bdaddr_type);
+
 		process_adv_report(hdev, info->type, &info->bdaddr,
 				   info->bdaddr_type, &info->direct_addr,
 				   info->direct_addr_type, HCI_ADV_PHY_1M, 0,

@@ -7517,73 +7536,29 @@ static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
 	return true;
 }
 
-static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
-				  struct sk_buff *skb)
+static void hci_store_wake_reason(struct hci_dev *hdev,
+				  const bdaddr_t *bdaddr, u8 addr_type)
+	__must_hold(&hdev->lock)
 {
-	struct hci_ev_le_advertising_info *adv;
-	struct hci_ev_le_direct_adv_info *direct_adv;
-	struct hci_ev_le_ext_adv_info *ext_adv;
-	const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
-	const struct hci_ev_conn_request *conn_request = (void *)skb->data;
-
-	hci_dev_lock(hdev);
+	lockdep_assert_held(&hdev->lock);
 
 	/* If we are currently suspended and this is the first BT event seen,
 	 * save the wake reason associated with the event.
 	 */
 	if (!hdev->suspended || hdev->wake_reason)
-		goto unlock;
+		return;
+
+	if (!bdaddr) {
+		hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
+		return;
+	}
 
 	/* Default to remote wake. Values for wake_reason are documented in the
 	 * Bluez mgmt api docs.
 	 */
 	hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
-
-	/* Once configured for remote wakeup, we should only wake up for
-	 * reconnections. It's useful to see which device is waking us up so
-	 * keep track of the bdaddr of the connection event that woke us up.
-	 */
-	if (event == HCI_EV_CONN_REQUEST) {
-		bacpy(&hdev->wake_addr, &conn_request->bdaddr);
-		hdev->wake_addr_type = BDADDR_BREDR;
-	} else if (event == HCI_EV_CONN_COMPLETE) {
-		bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
-		hdev->wake_addr_type = BDADDR_BREDR;
-	} else if (event == HCI_EV_LE_META) {
-		struct hci_ev_le_meta *le_ev = (void *)skb->data;
-		u8 subevent = le_ev->subevent;
-		u8 *ptr = &skb->data[sizeof(*le_ev)];
-		u8 num_reports = *ptr;
-
-		if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
-		     subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
-		     subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
-		    num_reports) {
-			adv = (void *)(ptr + 1);
-			direct_adv = (void *)(ptr + 1);
-			ext_adv = (void *)(ptr + 1);
-
-			switch (subevent) {
-			case HCI_EV_LE_ADVERTISING_REPORT:
-				bacpy(&hdev->wake_addr, &adv->bdaddr);
-				hdev->wake_addr_type = adv->bdaddr_type;
-				break;
-			case HCI_EV_LE_DIRECT_ADV_REPORT:
-				bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
-				hdev->wake_addr_type = direct_adv->bdaddr_type;
-				break;
-			case HCI_EV_LE_EXT_ADV_REPORT:
-				bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
-				hdev->wake_addr_type = ext_adv->bdaddr_type;
-				break;
-			}
-		}
-	} else {
-		hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
-	}
-
-unlock:
-	hci_dev_unlock(hdev);
+	bacpy(&hdev->wake_addr, bdaddr);
+	hdev->wake_addr_type = addr_type;
 }
 
 #define HCI_EV_VL(_op, _func, _min_len, _max_len) \

@@ -7830,14 +7805,15 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 
 	skb_pull(skb, HCI_EVENT_HDR_SIZE);
 
-	/* Store wake reason if we're suspended */
-	hci_store_wake_reason(hdev, event, skb);
-
 	bt_dev_dbg(hdev, "event 0x%2.2x", event);
 
 	hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
 		       &req_complete_skb);
 
+	hci_dev_lock(hdev);
+	hci_store_wake_reason(hdev, NULL, 0);
+	hci_dev_unlock(hdev);
+
 	if (req_complete) {
 		req_complete(hdev, status, opcode);
 	} else if (req_complete_skb) {