normal	2015-12-10 05:07:23 +0900 (Thu, 10 Dec 2015)

  New Revision: 53016

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=53016

  Log:
    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

  Modified files:
    trunk/ChangeLog
    trunk/ext/socket/ifaddr.c
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 53015)
+++ ChangeLog	(revision 53016)
@@ -1,3 +1,8 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Thu Dec 10 05:03:51 2015  Eric Wong  <e@8...>
+
+	* ext/socket/ifaddr.c (ifaddr_mark): remove empty function
+	  (ifaddr_type): pass zero to rb_data_type_t.function.dmark
+
 Thu Dec 10 04:49:16 2015  Eric Wong  <e@8...>
 
 	* proc.c (bm_free): remove, use default free
Index: ext/socket/ifaddr.c
===================================================================
--- ext/socket/ifaddr.c	(revision 53015)
+++ ext/socket/ifaddr.c	(revision 53016)
@@ -41,11 +41,6 @@ get_root(const rb_ifaddr_t *ifaddr) https://github.com/ruby/ruby/blob/trunk/ext/socket/ifaddr.c#L41
 }
 
 static void
-ifaddr_mark(void *ptr)
-{
-}
-
-static void
 ifaddr_free(void *ptr)
 {
     rb_ifaddr_t *ifaddr = ptr;
@@ -69,7 +64,7 @@ ifaddr_memsize(const void *ptr) https://github.com/ruby/ruby/blob/trunk/ext/socket/ifaddr.c#L64
 
 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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