From a7627b0ce29ea974c5c1198d56d61520f8628aa1 Mon Sep 17 00:00:00 2001
From: David Cermak <cermak@espressif.com>
Date: Mon, 22 Sep 2025 10:04:37 +0200
Subject: [PATCH] fix(esp_netif): Make esp_netif_ip6_get_addr_type() const
 correct

Closes https://github.com/espressif/esp-idf/issues/15882
---
 components/esp_netif/include/esp_netif_ip_addr.h   | 2 +-
 components/esp_netif/loopback/esp_netif_loopback.c | 2 +-
 components/esp_netif/lwip/esp_netif_lwip.c         | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/components/esp_netif/include/esp_netif_ip_addr.h b/components/esp_netif/include/esp_netif_ip_addr.h
index 4f31636627..b059b3d4ae 100644
--- a/components/esp_netif/include/esp_netif_ip_addr.h
+++ b/components/esp_netif/include/esp_netif_ip_addr.h
@@ -144,7 +144,7 @@ typedef enum {
  *
  * @return IPv6 type in form of enum esp_ip6_addr_type_t
  */
-esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(esp_ip6_addr_t* ip6_addr);
+esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(const esp_ip6_addr_t* ip6_addr);
 
 /**
  * @brief  Copy IP addresses
diff --git a/components/esp_netif/loopback/esp_netif_loopback.c b/components/esp_netif/loopback/esp_netif_loopback.c
index 28fd7cabab..81e4aa7f18 100644
--- a/components/esp_netif/loopback/esp_netif_loopback.c
+++ b/components/esp_netif/loopback/esp_netif_loopback.c
@@ -470,7 +470,7 @@ int esp_netif_get_all_ip6(esp_netif_t *esp_netif, esp_ip6_addr_t if_ip6[])
     return 0;
 }
 
-esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(esp_ip6_addr_t* ip6_addr)
+esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(const esp_ip6_addr_t* ip6_addr)
 {
     return ESP_IP6_ADDR_IS_UNKNOWN;
 }
diff --git a/components/esp_netif/lwip/esp_netif_lwip.c b/components/esp_netif/lwip/esp_netif_lwip.c
index 49e87649c0..54da7705dd 100644
--- a/components/esp_netif/lwip/esp_netif_lwip.c
+++ b/components/esp_netif/lwip/esp_netif_lwip.c
@@ -2212,9 +2212,9 @@ static void netif_unset_mldv6_flag(esp_netif_t *esp_netif)
 
 #endif
 
-esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(esp_ip6_addr_t* ip6_addr)
+esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(const esp_ip6_addr_t* ip6_addr)
 {
-    ip6_addr_t* lwip_ip6_info = (ip6_addr_t*)ip6_addr;
+    const ip6_addr_t* lwip_ip6_info = (const ip6_addr_t*)ip6_addr;
 
     if (ip6_addr_isglobal(lwip_ip6_info)) {
         return ESP_IP6_ADDR_IS_GLOBAL;