[network] Inline network::is_connected() and ethernet is_connected() (#14464)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

esphome/components/ethernet/ethernet_component.cpp

@@ -687,8 +687,6 @@ void EthernetComponent::start_connect_() {
   this->status_set_warning();
 }
 
-bool EthernetComponent::is_connected() { return this->state_ == EthernetComponentState::CONNECTED; }
-
 void EthernetComponent::dump_connect_params_() {
   esp_netif_ip_info_t ip;
   esp_netif_get_ip_info(this->eth_netif_, &ip);

esphome/components/ethernet/ethernet_component.h

@@ -76,7 +76,7 @@ class EthernetComponent : public Component {
   void dump_config() override;
   float get_setup_priority() const override;
   void on_powerdown() override { powerdown(); }
-  bool is_connected();
+  bool is_connected() { return this->state_ == EthernetComponentState::CONNECTED; }
 
 #ifdef USE_ETHERNET_SPI
   void set_clk_pin(uint8_t clk_pin);

esphome/components/network/util.cpp

@@ -1,53 +1,11 @@
 #include "util.h"
 #include "esphome/core/defines.h"
 #ifdef USE_NETWORK
-#ifdef USE_WIFI
-#include "esphome/components/wifi/wifi_component.h"
-#endif
-
-#ifdef USE_ETHERNET
-#include "esphome/components/ethernet/ethernet_component.h"
-#endif
-
-#ifdef USE_OPENTHREAD
-#include "esphome/components/openthread/openthread.h"
-#endif
-
-#ifdef USE_MODEM
-#include "esphome/components/modem/modem_component.h"
-#endif
 
 namespace esphome::network {
 
 // The order of the components is important: WiFi should come after any possible main interfaces (it may be used as
-// an AP that use a previous interface for NAT).
-
-bool is_connected() {
-#ifdef USE_ETHERNET
-  if (ethernet::global_eth_component != nullptr && ethernet::global_eth_component->is_connected())
-    return true;
-#endif
-
-#ifdef USE_MODEM
-  if (modem::global_modem_component != nullptr)
-    return modem::global_modem_component->is_connected();
-#endif
-
-#ifdef USE_WIFI
-  if (wifi::global_wifi_component != nullptr)
-    return wifi::global_wifi_component->is_connected();
-#endif
-
-#ifdef USE_OPENTHREAD
-  if (openthread::global_openthread_component != nullptr)
-    return openthread::global_openthread_component->is_connected();
-#endif
-
-#ifdef USE_HOST
-  return true;  // Assume its connected
-#endif
-  return false;
-}
+// an AP that uses a previous interface for NAT).
 
 bool is_disabled() {
 #ifdef USE_MODEM

esphome/components/network/util.h

@@ -2,12 +2,55 @@
 #include "esphome/core/defines.h"
 #ifdef USE_NETWORK
 #include <string>
+#include "esphome/core/helpers.h"
 #include "ip_address.h"
 
+#ifdef USE_ETHERNET
+#include "esphome/components/ethernet/ethernet_component.h"
+#endif
+#ifdef USE_MODEM
+#include "esphome/components/modem/modem_component.h"
+#endif
+#ifdef USE_WIFI
+#include "esphome/components/wifi/wifi_component.h"
+#endif
+#ifdef USE_OPENTHREAD
+#include "esphome/components/openthread/openthread.h"
+#endif
+
 namespace esphome::network {
 
+// The order of the components is important: WiFi should come after any possible main interfaces (it may be used as
+// an AP that uses a previous interface for NAT).
+
 /// Return whether the node is connected to the network (through wifi, eth, ...)
-bool is_connected();
+ESPHOME_ALWAYS_INLINE inline bool is_connected() {
+#ifdef USE_ETHERNET
+  if (ethernet::global_eth_component != nullptr && ethernet::global_eth_component->is_connected())
+    return true;
+#endif
+
+#ifdef USE_MODEM
+  if (modem::global_modem_component != nullptr)
+    return modem::global_modem_component->is_connected();
+#endif
+
+#ifdef USE_WIFI
+  if (wifi::global_wifi_component != nullptr)
+    return wifi::global_wifi_component->is_connected();
+#endif
+
+#ifdef USE_OPENTHREAD
+  if (openthread::global_openthread_component != nullptr)
+    return openthread::global_openthread_component->is_connected();
+#endif
+
+#ifdef USE_HOST
+  return true;  // Assume it's connected
+#endif
+  return false;
+}
+
 /// Return whether the network is disabled (only wifi for now)
 bool is_disabled();
 /// Get the active network hostname