From b6958986d1fd1e020ae8794d91959c2e1030eacf Mon Sep 17 00:00:00 2001
From: Kristian Sloth Lauszus <lauszus@gmail.com>
Date: Wed, 14 Jun 2017 13:28:05 +0200
Subject: [PATCH] Fixed unused-function warning

See: https://github.com/esp8266/Arduino/pull/2881/files/d55efd3e144256afe043d251a0f6c778c5139f7c#diff-67390c99ad4faa2080719586ebf73b9e and https://travis-ci.org/felis/USB_Host_Shield_2.0/jobs/213822247#L1248
---
 cores/esp8266/Schedule.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cores/esp8266/Schedule.cpp b/cores/esp8266/Schedule.cpp
index 60d87e863..0f78f943e 100644
--- a/cores/esp8266/Schedule.cpp
+++ b/cores/esp8266/Schedule.cpp
@@ -14,9 +14,9 @@ static scheduled_fn_t* sLastUnused = 0;
 
 static int sCount = 0;
 
+static void init_lists() __attribute__((unused));
 static void init_lists()
 {
-    (void) init_lists;
     if (sCount != 0) {
         return;
     }