From 7526b8a7e459bd900f988cf7eb667957a57490b8 Mon Sep 17 00:00:00 2001
From: David Wu <133224895+David-Wu1119@users.noreply.github.com>
Date: Tue, 8 Sep 2026 00:53:02 -0700
Subject: [PATCH] Type the nmap_tracker device registry with a HassKey
 (#181102)

---
 homeassistant/components/nmap_tracker/__init__.py | 11 ++++-------
 homeassistant/components/nmap_tracker/const.py    | 10 ++++++++--
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/homeassistant/components/nmap_tracker/__init__.py b/homeassistant/components/nmap_tracker/__init__.py
index 590783d61a4d..54a79105aa67 100644
--- a/homeassistant/components/nmap_tracker/__init__.py
+++ b/homeassistant/components/nmap_tracker/__init__.py
@@ -1,5 +1,4 @@
 """The Nmap Tracker integration."""
-# pylint: disable=home-assistant-use-runtime-data  # Uses legacy hass.data[DOMAIN] pattern
 
 import asyncio
 from dataclasses import dataclass
@@ -33,7 +32,7 @@ from .const import (
     CONF_MAC_EXCLUDE,
     CONF_OPTIONS,
     DOMAIN,
-    NMAP_TRACKED_DEVICES,
+    NMAP_TRACKER_DATA,
     PLATFORMS,
     TRACKER_SCAN_INTERVAL,
 )
@@ -90,8 +89,8 @@ _LOGGER = logging.getLogger(__name__)
 
 async def async_setup_entry(hass: HomeAssistant, entry: NmapTrackerConfigEntry) -> bool:
     """Set up Nmap Tracker from a config entry."""
-    domain_data = hass.data.setdefault(DOMAIN, {})
-    devices = domain_data.setdefault(NMAP_TRACKED_DEVICES, NmapTrackedDevices())
+    if (devices := hass.data.get(NMAP_TRACKER_DATA)) is None:
+        devices = hass.data[NMAP_TRACKER_DATA] = NmapTrackedDevices()
     scanner = NmapDeviceScanner(hass, entry, devices)
     await scanner.async_setup()
     entry.runtime_data = scanner
@@ -144,9 +143,7 @@ async def async_migrate_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 @callback
 def _async_untrack_devices(hass: HomeAssistant, entry: ConfigEntry) -> None:
     """Remove tracking for devices owned by this config entry."""
-    # Uses legacy hass.data[DOMAIN] pattern
-    # pylint: disable-next=home-assistant-use-runtime-data
-    devices = hass.data[DOMAIN][NMAP_TRACKED_DEVICES]
+    devices = hass.data[NMAP_TRACKER_DATA]
     remove_mac_addresses = [
         mac_address
         for mac_address, entry_id in devices.config_entry_owner.items()
diff --git a/homeassistant/components/nmap_tracker/const.py b/homeassistant/components/nmap_tracker/const.py
index e6d122a62619..da7892d9ae2b 100644
--- a/homeassistant/components/nmap_tracker/const.py
+++ b/homeassistant/components/nmap_tracker/const.py
@@ -1,14 +1,20 @@
 """The Nmap Tracker integration."""
 
-from typing import Final
+from typing import TYPE_CHECKING, Final
 
 from homeassistant.const import Platform
+from homeassistant.util.hass_dict import HassKey
+
+if TYPE_CHECKING:
+    from . import NmapTrackedDevices
 
 DOMAIN: Final = "nmap_tracker"
 
 PLATFORMS: Final = [Platform.DEVICE_TRACKER]
 
-NMAP_TRACKED_DEVICES: Final = "nmap_tracked_devices"
+# Tracked devices are keyed by MAC across every config entry, so the registry
+# is shared rather than owned by any one entry.
+NMAP_TRACKER_DATA: HassKey[NmapTrackedDevices] = HassKey(DOMAIN)
 
 # Interval in minutes to exclude devices from a scan while they are home
 CONF_HOME_INTERVAL: Final = "home_interval"