From 04bba6707f56d8b5dd53d6b452240a634f823003 Mon Sep 17 00:00:00 2001
From: Phil Sutter <psutter@redhat.com>
Date: Sat, 9 Jul 2016 11:33:14 +0200
Subject: [PATCH] list: add list_for_each_entry_reverse macro

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1342515
Upstream Status: iproute2.git commit f1239ca1f96c7

commit f1239ca1f96c76fbc0742ca0d0c7e87b9b15d437
Author: Jiri Pirko <jiri@mellanox.com>
Date:   Fri Apr 15 09:51:44 2016 +0200

    list: add list_for_each_entry_reverse macro

    Signed-off-by: Jiri Pirko <jiri@mellanox.com>
---
 include/list.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/list.h b/include/list.h
index cdebe4d..b549c3e 100644
--- a/include/list.h
+++ b/include/list.h
@@ -50,9 +50,15 @@ static inline void list_del(struct list_head *entry)
 #define list_first_entry(ptr, type, member) \
 	list_entry((ptr)->next, type, member)
 
+#define list_last_entry(ptr, type, member) \
+	list_entry((ptr)->prev, type, member)
+
 #define list_next_entry(pos, member) \
 	list_entry((pos)->member.next, typeof(*(pos)), member)
 
+#define list_prev_entry(pos, member) \
+	list_entry((pos)->member.prev, typeof(*(pos)), member)
+
 #define list_for_each_entry(pos, head, member)				\
 	for (pos = list_first_entry(head, typeof(*pos), member);	\
 	     &pos->member != (head);					\
@@ -64,6 +70,11 @@ static inline void list_del(struct list_head *entry)
 	     &pos->member != (head);					\
 	     pos = n, n = list_next_entry(n, member))
 
+#define list_for_each_entry_reverse(pos, head, member)			\
+	for (pos = list_last_entry(head, typeof(*pos), member);		\
+	     &pos->member != (head);					\
+	     pos = list_prev_entry(pos, member))
+
 struct hlist_head {
 	struct hlist_node *first;
 };
-- 
1.8.3.1