[analyze_memory] Fix mDNS packet buffer miscategorized as wifi_config

Move `packet$` pattern from `wifi_config` to `mdns_lib` category.
The `packet$` static buffer is the mDNS packet assembly buffer used
by ESP-IDF's mDNS component, not a WiFi config symbol. This was
causing 1,460 B of mDNS RAM to appear under wifi_config in
ethernet-only builds.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2026.3.0-dev
+PROJECT_NUMBER         = 2026.2.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

esphome/analyze_memory/const.py

@@ -256,7 +256,7 @@ SYMBOL_PATTERNS = {
     "ipv6_stack": ["nd6_", "ip6_", "mld6_", "icmp6_", "icmp6_input"],
     # Order matters! More specific categories must come before general ones.
     # mdns must come before bluetooth to avoid "_mdns_disable_pcb" matching "ble_" pattern
-    "mdns_lib": ["mdns"],
+    "mdns_lib": ["mdns", "packet$"],
     # memory_mgmt must come before wifi_stack to catch mmu_hal_* symbols
     "memory_mgmt": [
         "mem_",
@@ -794,7 +794,6 @@ SYMBOL_PATTERNS = {
         "s_dp",
         "s_ni",
         "s_reg_dump",
-        "packet$",
         "d_mult_table",
         "K",
         "fcstab",

esphome/components/ethernet/__init__.py

@@ -130,16 +130,11 @@ ETHERNET_TYPES = {
 }
 
 # PHY types that need compile-time defines for conditional compilation
-# Each RMII PHY type gets a define so unused PHY drivers are excluded by the linker
 _PHY_TYPE_TO_DEFINE = {
-    "LAN8720": "USE_ETHERNET_LAN8720",
-    "RTL8201": "USE_ETHERNET_RTL8201",
-    "DP83848": "USE_ETHERNET_DP83848",
-    "IP101": "USE_ETHERNET_IP101",
-    "JL1101": "USE_ETHERNET_JL1101",
     "KSZ8081": "USE_ETHERNET_KSZ8081",
     "KSZ8081RNA": "USE_ETHERNET_KSZ8081",
     "LAN8670": "USE_ETHERNET_LAN8670",
+    # Add other PHY types here only if they need conditional compilation
 }
 
 SPI_ETHERNET_TYPES = ["W5500", "DM9051"]

esphome/components/ethernet/ethernet_component.cpp

@@ -186,43 +186,31 @@ void EthernetComponent::setup() {
     }
 #endif
 #if CONFIG_ETH_USE_ESP32_EMAC
-#ifdef USE_ETHERNET_LAN8720
     case ETHERNET_TYPE_LAN8720: {
       this->phy_ = esp_eth_phy_new_lan87xx(&phy_config);
       break;
     }
-#endif
-#ifdef USE_ETHERNET_RTL8201
     case ETHERNET_TYPE_RTL8201: {
       this->phy_ = esp_eth_phy_new_rtl8201(&phy_config);
       break;
     }
-#endif
-#ifdef USE_ETHERNET_DP83848
     case ETHERNET_TYPE_DP83848: {
       this->phy_ = esp_eth_phy_new_dp83848(&phy_config);
       break;
     }
-#endif
-#ifdef USE_ETHERNET_IP101
     case ETHERNET_TYPE_IP101: {
       this->phy_ = esp_eth_phy_new_ip101(&phy_config);
       break;
     }
-#endif
-#ifdef USE_ETHERNET_JL1101
     case ETHERNET_TYPE_JL1101: {
       this->phy_ = esp_eth_phy_new_jl1101(&phy_config);
       break;
     }
-#endif
-#ifdef USE_ETHERNET_KSZ8081
     case ETHERNET_TYPE_KSZ8081:
     case ETHERNET_TYPE_KSZ8081RNA: {
       this->phy_ = esp_eth_phy_new_ksz80xx(&phy_config);
       break;
     }
-#endif
 #ifdef USE_ETHERNET_LAN8670
     case ETHERNET_TYPE_LAN8670: {
       this->phy_ = esp_eth_phy_new_lan867x(&phy_config);
@@ -355,32 +343,26 @@ void EthernetComponent::loop() {
 void EthernetComponent::dump_config() {
   const char *eth_type;
   switch (this->type_) {
-#ifdef USE_ETHERNET_LAN8720
     case ETHERNET_TYPE_LAN8720:
       eth_type = "LAN8720";
       break;
-#endif
-#ifdef USE_ETHERNET_RTL8201
+
     case ETHERNET_TYPE_RTL8201:
       eth_type = "RTL8201";
       break;
-#endif
-#ifdef USE_ETHERNET_DP83848
+
     case ETHERNET_TYPE_DP83848:
       eth_type = "DP83848";
       break;
-#endif
-#ifdef USE_ETHERNET_IP101
+
     case ETHERNET_TYPE_IP101:
       eth_type = "IP101";
       break;
-#endif
-#ifdef USE_ETHERNET_JL1101
+
     case ETHERNET_TYPE_JL1101:
       eth_type = "JL1101";
       break;
-#endif
-#ifdef USE_ETHERNET_KSZ8081
+
     case ETHERNET_TYPE_KSZ8081:
       eth_type = "KSZ8081";
       break;
@@ -388,22 +370,19 @@ void EthernetComponent::dump_config() {
     case ETHERNET_TYPE_KSZ8081RNA:
       eth_type = "KSZ8081RNA";
       break;
-#endif
-#if CONFIG_ETH_SPI_ETHERNET_W5500
+
     case ETHERNET_TYPE_W5500:
       eth_type = "W5500";
       break;
-#endif
-#if CONFIG_ETH_SPI_ETHERNET_DM9051
-    case ETHERNET_TYPE_DM9051:
-      eth_type = "DM9051";
-      break;
-#endif
-#ifdef USE_ETHERNET_OPENETH
+
     case ETHERNET_TYPE_OPENETH:
       eth_type = "OPENETH";
       break;
-#endif
+
+    case ETHERNET_TYPE_DM9051:
+      eth_type = "DM9051";
+      break;
+
 #ifdef USE_ETHERNET_LAN8670
     case ETHERNET_TYPE_LAN8670:
       eth_type = "LAN8670";
@@ -707,22 +686,16 @@ void EthernetComponent::dump_connect_params_() {
   char gateway_buf[network::IP_ADDRESS_BUFFER_SIZE];
   char dns1_buf[network::IP_ADDRESS_BUFFER_SIZE];
   char dns2_buf[network::IP_ADDRESS_BUFFER_SIZE];
-  char mac_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
   ESP_LOGCONFIG(TAG,
                 "  IP Address: %s\n"
                 "  Hostname: '%s'\n"
                 "  Subnet: %s\n"
                 "  Gateway: %s\n"
                 "  DNS1: %s\n"
-                "  DNS2: %s\n"
-                "  MAC Address: %s\n"
-                "  Is Full Duplex: %s\n"
-                "  Link Speed: %u",
+                "  DNS2: %s",
                 network::IPAddress(&ip.ip).str_to(ip_buf), App.get_name().c_str(),
                 network::IPAddress(&ip.netmask).str_to(subnet_buf), network::IPAddress(&ip.gw).str_to(gateway_buf),
-                network::IPAddress(dns_ip1).str_to(dns1_buf), network::IPAddress(dns_ip2).str_to(dns2_buf),
-                this->get_eth_mac_address_pretty_into_buffer(mac_buf),
-                YESNO(this->get_duplex_mode() == ETH_DUPLEX_FULL), this->get_link_speed() == ETH_SPEED_100M ? 100 : 10);
+                network::IPAddress(dns_ip1).str_to(dns1_buf), network::IPAddress(dns_ip2).str_to(dns2_buf));
 
 #if USE_NETWORK_IPV6
   struct esp_ip6_addr if_ip6s[CONFIG_LWIP_IPV6_NUM_ADDRESSES];
@@ -733,6 +706,14 @@ void EthernetComponent::dump_connect_params_() {
     ESP_LOGCONFIG(TAG, "  IPv6: " IPV6STR, IPV62STR(if_ip6s[i]));
   }
 #endif /* USE_NETWORK_IPV6 */
+
+  char mac_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
+  ESP_LOGCONFIG(TAG,
+                "  MAC Address: %s\n"
+                "  Is Full Duplex: %s\n"
+                "  Link Speed: %u",
+                this->get_eth_mac_address_pretty_into_buffer(mac_buf),
+                YESNO(this->get_duplex_mode() == ETH_DUPLEX_FULL), this->get_link_speed() == ETH_SPEED_100M ? 100 : 10);
 }
 
 #ifdef USE_ETHERNET_SPI
@@ -856,15 +837,13 @@ void EthernetComponent::ksz8081_set_clock_reference_(esp_eth_mac_t *mac) {
 
 void EthernetComponent::write_phy_register_(esp_eth_mac_t *mac, PHYRegister register_data) {
   esp_err_t err;
-
-#ifdef USE_ETHERNET_RTL8201
   constexpr uint8_t eth_phy_psr_reg_addr = 0x1F;
+
   if (this->type_ == ETHERNET_TYPE_RTL8201 && register_data.page) {
     ESP_LOGD(TAG, "Select PHY Register Page: 0x%02" PRIX32, register_data.page);
     err = mac->write_phy_reg(mac, this->phy_addr_, eth_phy_psr_reg_addr, register_data.page);
     ESPHL_ERROR_CHECK(err, "Select PHY Register page failed");
   }
-#endif
 
   ESP_LOGD(TAG,
            "Writing to PHY Register Address: 0x%02" PRIX32 "\n"
@@ -873,13 +852,11 @@ void EthernetComponent::write_phy_register_(esp_eth_mac_t *mac, PHYRegister regi
   err = mac->write_phy_reg(mac, this->phy_addr_, register_data.address, register_data.value);
   ESPHL_ERROR_CHECK(err, "Writing PHY Register failed");
 
-#ifdef USE_ETHERNET_RTL8201
   if (this->type_ == ETHERNET_TYPE_RTL8201 && register_data.page) {
     ESP_LOGD(TAG, "Select PHY Register Page 0x00");
     err = mac->write_phy_reg(mac, this->phy_addr_, eth_phy_psr_reg_addr, 0x0);
     ESPHL_ERROR_CHECK(err, "Select PHY Register Page 0 failed");
   }
-#endif
 }
 
 #endif

esphome/const.py

@@ -4,7 +4,7 @@ from enum import Enum
 
 from esphome.enum import StrEnum
 
-__version__ = "2026.3.0-dev"
+__version__ = "2026.2.0-dev"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 VALID_SUBSTITUTIONS_CHARACTERS = (

esphome/core/defines.h

@@ -241,13 +241,7 @@
 #ifdef USE_ARDUINO
 #define USE_ARDUINO_VERSION_CODE VERSION_CODE(3, 3, 7)
 #define USE_ETHERNET
-#define USE_ETHERNET_LAN8720
-#define USE_ETHERNET_RTL8201
-#define USE_ETHERNET_DP83848
-#define USE_ETHERNET_IP101
-#define USE_ETHERNET_JL1101
 #define USE_ETHERNET_KSZ8081
-#define USE_ETHERNET_LAN8670
 #define USE_ETHERNET_MANUAL_IP
 #define USE_ETHERNET_IP_STATE_LISTENERS
 #define USE_ETHERNET_CONNECT_TRIGGER