netdev - [PATCH nf-next] netfilter: nf_dup{4,6}: fix build error when nf

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Date:	Wed,  2 Sep 2015 20:54:02 +0200
From:	Daniel Borkmann <daniel@...earbox.net>
To:	pablo@...filter.org
Cc:	fw@...len.de, netfilter-devel@...r.kernel.org,
	netdev@...r.kernel.org, Daniel Borkmann <daniel@...earbox.net>
Subject: [PATCH nf-next] netfilter: nf_dup{4,6}: fix build error when nf_conntrack disabled

While testing various Kconfig options on another issue, I found that
the following one triggers as well on allmodconfig and nf_conntrack
disabled:

  net/ipv4/netfilter/nf_dup_ipv4.c: In function ‘nf_dup_ipv4’:
  net/ipv4/netfilter/nf_dup_ipv4.c:72:20: error: ‘nf_skb_duplicated’ undeclared (first use in this function)
    if (this_cpu_read(nf_skb_duplicated))
  [...]
  net/ipv6/netfilter/nf_dup_ipv6.c: In function ‘nf_dup_ipv6’:
  net/ipv6/netfilter/nf_dup_ipv6.c:66:20: error: ‘nf_skb_duplicated’ undeclared (first use in this function)
    if (this_cpu_read(nf_skb_duplicated))

Fix it by including directly the header where it is defined.

Fixes: bbde9fc1824a ("netfilter: factor out packet duplication for IPv4/IPv6")
Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
---
 [ Don't know whether Dave wants to take it directly, or if it should
   go via nf-next. I have one more build fix coming later tonight. Also
   applies to net-next. ]

 net/ipv4/netfilter/nf_dup_ipv4.c | 1 +
 net/ipv6/netfilter/nf_dup_ipv6.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/net/ipv4/netfilter/nf_dup_ipv4.c b/net/ipv4/netfilter/nf_dup_ipv4.c
index b5bb375..2d79e6e 100644
--- a/net/ipv4/netfilter/nf_dup_ipv4.c
+++ b/net/ipv4/netfilter/nf_dup_ipv4.c
@@ -13,6 +13,7 @@
 #include <linux/percpu.h>
 #include <linux/route.h>
 #include <linux/skbuff.h>
+#include <linux/netfilter.h>
 #include <net/checksum.h>
 #include <net/icmp.h>
 #include <net/ip.h>
diff --git a/net/ipv6/netfilter/nf_dup_ipv6.c b/net/ipv6/netfilter/nf_dup_ipv6.c
index c5c87e9..c8ab626 100644
--- a/net/ipv6/netfilter/nf_dup_ipv6.c
+++ b/net/ipv6/netfilter/nf_dup_ipv6.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/percpu.h>
 #include <linux/skbuff.h>
+#include <linux/netfilter.h>
 #include <net/ipv6.h>
 #include <net/ip6_route.h>
 #include <net/netfilter/ipv6/nf_dup_ipv6.h>
-- 
1.9.3

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