From 5ef8a3cb6054ea8b75984123b9dd1e31b1eafb08 Mon Sep 17 00:00:00 2001
From: Dirk Ziegelmeier <dirk@ziegelmeier.net>
Date: Thu, 9 Feb 2017 21:08:40 +0100
Subject: [PATCH] igmp.c: igmp_lookup_group() should be static (cherry picked
 from commit 702091d548ca75aaea7e3e9f4433c6505260302b)

---
 src/core/ipv4/igmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/ipv4/igmp.c b/src/core/ipv4/igmp.c
index 561448e0..74a6c377 100644
--- a/src/core/ipv4/igmp.c
+++ b/src/core/ipv4/igmp.c
@@ -240,7 +240,7 @@ igmp_lookfor_group(struct netif *ifp, const ip4_addr_t *addr)
  * @return a struct igmp_group*,
  *         NULL on memory error.
  */
-struct igmp_group *
+static struct igmp_group *
 igmp_lookup_group(struct netif *ifp, const ip4_addr_t *addr)
 {
   struct igmp_group *group;