From 1e796fda00f06bac584f0e4ad8750ab9430d79d3 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Mon, 17 Dec 2007 22:42:27 -0800
Subject: [NETFILTER]: constify nf_afinfo

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netfilter.h              | 10 +++++-----
 net/ipv4/netfilter.c                   |  2 +-
 net/ipv6/netfilter.c                   |  2 +-
 net/netfilter/core.c                   |  6 +++---
 net/netfilter/nf_conntrack_h323_main.c |  2 +-
 net/netfilter/nf_queue.c               |  4 ++--
 6 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index bd4a2dd..0947424 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -226,8 +226,8 @@ struct nf_afinfo {
 	int		route_key_size;
 };
 
-extern struct nf_afinfo *nf_afinfo[];
-static inline struct nf_afinfo *nf_get_afinfo(unsigned short family)
+extern const struct nf_afinfo *nf_afinfo[NPROTO];
+static inline const struct nf_afinfo *nf_get_afinfo(unsigned short family)
 {
 	return rcu_dereference(nf_afinfo[family]);
 }
@@ -236,7 +236,7 @@ static inline __sum16
 nf_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff,
 	    u_int8_t protocol, unsigned short family)
 {
-	struct nf_afinfo *afinfo;
+	const struct nf_afinfo *afinfo;
 	__sum16 csum = 0;
 
 	rcu_read_lock();
@@ -247,8 +247,8 @@ nf_checksum(struct sk_buff *skb, unsigned int hook, unsigned int dataoff,
 	return csum;
 }
 
-extern int nf_register_afinfo(struct nf_afinfo *afinfo);
-extern void nf_unregister_afinfo(struct nf_afinfo *afinfo);
+extern int nf_register_afinfo(const struct nf_afinfo *afinfo);
+extern void nf_unregister_afinfo(const struct nf_afinfo *afinfo);
 
 #include <net/flow.h>
 extern void (*ip_nat_decode_session)(struct sk_buff *, struct flowi *);
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 7bf5e4a..4011f8f 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -190,7 +190,7 @@ static int nf_ip_route(struct dst_entry **dst, struct flowi *fl)
 	return ip_route_output_key((struct rtable **)dst, fl);
 }
 
-static struct nf_afinfo nf_ip_afinfo = {
+static const struct nf_afinfo nf_ip_afinfo = {
 	.family		= AF_INET,
 	.checksum	= nf_ip_checksum,
 	.route		= nf_ip_route,
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 945e6ae..2e06724 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -124,7 +124,7 @@ __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
 
 EXPORT_SYMBOL(nf_ip6_checksum);
 
-static struct nf_afinfo nf_ip6_afinfo = {
+static const struct nf_afinfo nf_ip6_afinfo = {
 	.family		= AF_INET6,
 	.checksum	= nf_ip6_checksum,
 	.route		= nf_ip6_route,
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 95e1863..e026344 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -26,10 +26,10 @@
 
 static DEFINE_MUTEX(afinfo_mutex);
 
-struct nf_afinfo *nf_afinfo[NPROTO] __read_mostly;
+const struct nf_afinfo *nf_afinfo[NPROTO] __read_mostly;
 EXPORT_SYMBOL(nf_afinfo);
 
-int nf_register_afinfo(struct nf_afinfo *afinfo)
+int nf_register_afinfo(const struct nf_afinfo *afinfo)
 {
 	int err;
 
@@ -42,7 +42,7 @@ int nf_register_afinfo(struct nf_afinfo *afinfo)
 }
 EXPORT_SYMBOL_GPL(nf_register_afinfo);
 
-void nf_unregister_afinfo(struct nf_afinfo *afinfo)
+void nf_unregister_afinfo(const struct nf_afinfo *afinfo)
 {
 	mutex_lock(&afinfo_mutex);
 	rcu_assign_pointer(nf_afinfo[afinfo->family], NULL);
diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c
index c550257..b636ca6 100644
--- a/net/netfilter/nf_conntrack_h323_main.c
+++ b/net/netfilter/nf_conntrack_h323_main.c
@@ -708,7 +708,7 @@ static int callforward_do_filter(union nf_conntrack_address *src,
 				 union nf_conntrack_address *dst,
 				 int family)
 {
-	struct nf_afinfo *afinfo;
+	const struct nf_afinfo *afinfo;
 	struct flowi fl1, fl2;
 	int ret = 0;
 
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 7796511..bfc2928 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -119,7 +119,7 @@ static int __nf_queue(struct sk_buff *skb,
 	struct net_device *physindev;
 	struct net_device *physoutdev;
 #endif
-	struct nf_afinfo *afinfo;
+	const struct nf_afinfo *afinfo;
 	const struct nf_queue_handler *qh;
 
 	/* QUEUE == DROP if noone is waiting, to be safe. */
@@ -233,7 +233,7 @@ void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)
 {
 	struct sk_buff *skb = entry->skb;
 	struct list_head *elem = &entry->elem->list;
-	struct nf_afinfo *afinfo;
+	const struct nf_afinfo *afinfo;
 
 	rcu_read_lock();
 
-- 
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