From eee34ddd917cbf20732357f10110f570be6a5ae2 Mon Sep 17 00:00:00 2001
From: David Cermak <cermak@espressif.com>
Date: Tue, 5 Jun 2018 09:47:16 +0200
Subject: [PATCH] lwip fix for udp receivefrom

---
 components/lwip/api/sockets.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/lwip/api/sockets.c b/components/lwip/api/sockets.c
index badde6613a..181740813e 100644
--- a/components/lwip/api/sockets.c
+++ b/components/lwip/api/sockets.c
@@ -1075,7 +1075,8 @@ lwip_recvfrom(int s, void *mem, size_t len, int flags,
 
     /* Check to see from where the data was.*/
     if (done) {
-#if !SOCKETS_DEBUG
+/* enabling the UDP fix for ESP32 below when SOCKET_DEBUG is off */
+#if !SOCKETS_DEBUG && !ESP_LWIP
       if (from && fromlen)
 #endif /* !SOCKETS_DEBUG */
       {