From 42c2f1906f2a9bef13a19b4aa5e256a96b5a66c2 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Tue, 31 Mar 2026 20:39:43 -1000
Subject: [PATCH] Use constexpr for queue size with +1 for LockFreeQueue ring
 buffer

---
 esphome/components/wifi/wifi_component.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/esphome/components/wifi/wifi_component.h b/esphome/components/wifi/wifi_component.h
index 4f5ed0bc9f..a44a9bd617 100644
--- a/esphome/components/wifi/wifi_component.h
+++ b/esphome/components/wifi/wifi_component.h
@@ -891,10 +891,12 @@ class WiFiComponent final : public Component {
   // Thread-safe queue for WiFi events from LibreTiny callback thread.
   // LockFreeQueue on platforms with hardware atomics (RTL87xx, LN882x),
   // FreeRTOSQueue on platforms without (BK72xx).
+  static constexpr uint8_t LT_EVENT_QUEUE_SIZE = 16;
 #ifdef ESPHOME_THREAD_MULTI_ATOMICS
-  LockFreeQueue<LTWiFiEvent, 17> event_queue_;
+  // Ring buffer reserves one slot, so +1 for 16 usable slots
+  LockFreeQueue<LTWiFiEvent, LT_EVENT_QUEUE_SIZE + 1> event_queue_;
 #else
-  FreeRTOSQueue<LTWiFiEvent, 16> event_queue_;
+  FreeRTOSQueue<LTWiFiEvent, LT_EVENT_QUEUE_SIZE> event_queue_;
 #endif
 #endif