From mboxrd@z Thu Jan  1 00:00:00 1970
From: Diego Ongaro <diego.ongaro@citrix.com>
Subject: [PATCH] missing mini-os list_top macro
Date: Fri, 18 Jul 2008 15:18:19 +0100
Message-ID: <4880A62B.3050205@citrix.com>
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mini-os is missing list_top in its list.h
---
diff -r 37289395de03 extras/mini-os/include/list.h
--- a/extras/mini-os/include/list.h	Fri Jul 18 14:20:13 2008 +0100
+++ b/extras/mini-os/include/list.h	Fri Jul 18 15:05:42 2008 +0100
@@ -23,6 +23,12 @@
 #define INIT_LIST_HEAD(ptr) do { \
 	(ptr)->next = (ptr); (ptr)->prev = (ptr); \
 } while (0)
+
+#define list_top(head, type, member)					  \
+({ 									  \
+	struct list_head *_head = (head);				  \
+	list_empty(_head) ? NULL : list_entry(_head->next, type, member); \
+})
 
 /*
  * Insert a new entry between two known consecutive entries.