From 9db248f030af87e336b5880fc39e37a5beb7f291 Mon Sep 17 00:00:00 2001
From: Phil Sutter <psutter@redhat.com>
Date: Fri, 15 Mar 2019 17:52:42 +0100
Subject: [PATCH] list: fix prefetch dummy

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1525980
Upstream Status: iptables commit 86a65af62b6b9

commit 86a65af62b6b986aa2ae3cbf3c655ea8225b027a
Author: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date:   Mon Apr 6 20:05:41 2015 +0200

    list: fix prefetch dummy

    linux_list.h:381:59: warning: right-hand operand of comma expression has no effect [-Wunused-value]
      for (pos = list_entry((head)->next, typeof(*pos), member), \
                                                               ^
    libiptc.c:552:2: note: in expansion of macro 'list_for_each_entry'
      list_for_each_entry(c, &h->chains, list) {
      ^

    [ Patch copied from one similar of Patrick McHardy on libnftnl ]

    Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>

Signed-off-by: Phil Sutter <psutter@redhat.com>
---
 libiptc/linux_list.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libiptc/linux_list.h b/libiptc/linux_list.h
index abdcf88dadd64..559e33c9ebde0 100644
--- a/libiptc/linux_list.h
+++ b/libiptc/linux_list.h
@@ -27,7 +27,7 @@
 	1; \
 })
 
-#define prefetch(x)		1
+#define prefetch(x)		((void)0)
 
 /* empty define to make this work in userspace -HW */
 #define smp_wmb()
-- 
2.21.0