From 5bc9faa3dea3187b46cb24b6f897f52c5ea59ffa Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Wed, 18 Feb 2026 14:55:32 -0600
Subject: [PATCH] [core] Remove IRAM_ATTR from feed_wdt() and arch_feed_wdt()

feed_wdt() calls status_led::global_status_led->call() which is a
vtable dispatch into flash. arch_feed_wdt() calls esp_task_wdt_reset()
which is in .flash.text. Neither function can execute with the flash
cache disabled, so IRAM_ATTR provides no benefit.
---
 esphome/components/esp32/core.cpp     | 2 +-
 esphome/components/esp8266/core.cpp   | 2 +-
 esphome/components/host/core.cpp      | 2 +-
 esphome/components/libretiny/core.cpp | 2 +-
 esphome/components/rp2040/core.cpp    | 2 +-
 esphome/core/application.cpp          | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/esphome/components/esp32/core.cpp b/esphome/components/esp32/core.cpp
index 9b283942bf..202d929ab9 100644
--- a/esphome/components/esp32/core.cpp
+++ b/esphome/components/esp32/core.cpp
@@ -44,7 +44,7 @@ void arch_init() {
   esp_ota_mark_app_valid_cancel_rollback();
 #endif
 }
-void IRAM_ATTR HOT arch_feed_wdt() { esp_task_wdt_reset(); }
+void HOT arch_feed_wdt() { esp_task_wdt_reset(); }
 
 uint8_t progmem_read_byte(const uint8_t *addr) { return *addr; }
 uint32_t arch_get_cpu_cycle_count() { return esp_cpu_get_cycle_count(); }
diff --git a/esphome/components/esp8266/core.cpp b/esphome/components/esp8266/core.cpp
index 0b42948784..236d3022be 100644
--- a/esphome/components/esp8266/core.cpp
+++ b/esphome/components/esp8266/core.cpp
@@ -27,7 +27,7 @@ void arch_restart() {
   }
 }
 void arch_init() {}
-void IRAM_ATTR HOT arch_feed_wdt() { system_soft_wdt_feed(); }
+void HOT arch_feed_wdt() { system_soft_wdt_feed(); }
 
 uint8_t progmem_read_byte(const uint8_t *addr) {
   return pgm_read_byte(addr);  // NOLINT
diff --git a/esphome/components/host/core.cpp b/esphome/components/host/core.cpp
index c444c2985f..c20a33fa37 100644
--- a/esphome/components/host/core.cpp
+++ b/esphome/components/host/core.cpp
@@ -48,7 +48,7 @@ void arch_restart() { exit(0); }
 void arch_init() {
   // pass
 }
-void IRAM_ATTR HOT arch_feed_wdt() {
+void HOT arch_feed_wdt() {
   // pass
 }
 
diff --git a/esphome/components/libretiny/core.cpp b/esphome/components/libretiny/core.cpp
index 88c1faf2c0..4dda7c3856 100644
--- a/esphome/components/libretiny/core.cpp
+++ b/esphome/components/libretiny/core.cpp
@@ -30,7 +30,7 @@ void arch_restart() {
   while (1) {
   }
 }
-void IRAM_ATTR HOT arch_feed_wdt() { lt_wdt_feed(); }
+void HOT arch_feed_wdt() { lt_wdt_feed(); }
 uint32_t arch_get_cpu_cycle_count() { return lt_cpu_get_cycle_count(); }
 uint32_t arch_get_cpu_freq_hz() { return lt_cpu_get_freq(); }
 uint8_t progmem_read_byte(const uint8_t *addr) { return *addr; }
diff --git a/esphome/components/rp2040/core.cpp b/esphome/components/rp2040/core.cpp
index 5a61e31dc2..37378d88bb 100644
--- a/esphome/components/rp2040/core.cpp
+++ b/esphome/components/rp2040/core.cpp
@@ -27,7 +27,7 @@ void arch_init() {
 #endif
 }
 
-void IRAM_ATTR HOT arch_feed_wdt() { watchdog_update(); }
+void HOT arch_feed_wdt() { watchdog_update(); }
 
 uint8_t progmem_read_byte(const uint8_t *addr) {
   return pgm_read_byte(addr);  // NOLINT
diff --git a/esphome/core/application.cpp b/esphome/core/application.cpp
index 449acc64cf..406885fd81 100644
--- a/esphome/core/application.cpp
+++ b/esphome/core/application.cpp
@@ -240,7 +240,7 @@ void Application::process_dump_config_() {
   this->dump_config_at_++;
 }
 
-void IRAM_ATTR HOT Application::feed_wdt(uint32_t time) {
+void HOT Application::feed_wdt(uint32_t time) {
   static uint32_t last_feed = 0;
   // Use provided time if available, otherwise get current time
   uint32_t now = time ? time : millis();