From 991c8dd94c1dcb97d589682de5291d2dbfd405ba Mon Sep 17 00:00:00 2001
From: normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 9 Dec 2015 20:07:23 +0000
Subject: ext/socket/ifaddr.c: remove empty ifaddr_mark

We do not need to maintain empty functions for GC,
gc_mark_children will not attempt to dereference NULL
dmark callbacks.

* ext/socket/ifaddr.c (ifaddr_mark): remove empty function
  (ifaddr_type): pass zero to rb_data_type_t.function.dmark

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53016 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/socket/ifaddr.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'ext/socket')

diff --git a/ext/socket/ifaddr.c b/ext/socket/ifaddr.c
index be2cb65602..a954163369 100644
--- a/ext/socket/ifaddr.c
+++ b/ext/socket/ifaddr.c
@@ -40,11 +40,6 @@ get_root(const rb_ifaddr_t *ifaddr)
                                 offsetof(rb_ifaddr_root_t, ary));
 }
 
-static void
-ifaddr_mark(void *ptr)
-{
-}
-
 static void
 ifaddr_free(void *ptr)
 {
@@ -69,7 +64,7 @@ ifaddr_memsize(const void *ptr)
 
 static const rb_data_type_t ifaddr_type = {
     "socket/ifaddr",
-    {ifaddr_mark, ifaddr_free, ifaddr_memsize,},
+    {0, ifaddr_free, ifaddr_memsize,},
 };
 
 static inline rb_ifaddr_t *
-- 
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