netfilter: xtables: deconstify struct xt_action_param for matches

In future, layer-3 matches will be an xt module of their own, and
need to set the fragoff and thoff fields. Adding more pointers would
needlessy increase memory requirements (esp. so for 64-bit, where
pointers are wider).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

36 files changed, 46 insertions, 54 deletions

diff --git a/net/netfilter/xt_cluster.c b/net/netfilter/xt_cluster.c
index 67fc317118c..30b95a1c1c8 100644
--- a/net/netfilter/xt_cluster.c
+++ b/net/netfilter/xt_cluster.c
@@ -86,7 +86,7 @@ xt_cluster_is_multicast_addr(const struct sk_buff *skb, u_int8_t family)
 }
 
 static bool
-xt_cluster_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+xt_cluster_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	struct sk_buff *pskb = (struct sk_buff *)skb;
 	const struct xt_cluster_match_info *info = par->matchinfo;
diff --git a/net/netfilter/xt_comment.c b/net/netfilter/xt_comment.c
index 1dbb3e13c05..5c861d2f21c 100644
--- a/net/netfilter/xt_comment.c
+++ b/net/netfilter/xt_comment.c
@@ -16,7 +16,7 @@ MODULE_ALIAS("ipt_comment");
 MODULE_ALIAS("ip6t_comment");
 
 static bool
-comment_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+comment_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	/* We always match */
 	return true;
diff --git a/net/netfilter/xt_connbytes.c b/net/netfilter/xt_connbytes.c
index 5e5cf15f011..73517835303 100644
--- a/net/netfilter/xt_connbytes.c
+++ b/net/netfilter/xt_connbytes.c
@@ -18,7 +18,7 @@ MODULE_ALIAS("ipt_connbytes");
 MODULE_ALIAS("ip6t_connbytes");
 
 static bool
-connbytes_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+connbytes_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_connbytes_info *sinfo = par->matchinfo;
 	const struct nf_conn *ct;
diff --git a/net/netfilter/xt_connlimit.c b/net/netfilter/xt_connlimit.c
index 6eec1913298..f130fd9817b 100644
--- a/net/netfilter/xt_connlimit.c
+++ b/net/netfilter/xt_connlimit.c
@@ -173,7 +173,7 @@ static int count_them(struct net *net,
 }
 
 static bool
-connlimit_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+connlimit_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	struct net *net = dev_net(par->in ? par->in : par->out);
 	const struct xt_connlimit_info *info = par->matchinfo;
diff --git a/net/netfilter/xt_connmark.c b/net/netfilter/xt_connmark.c
index b43cfc7f1bb..7278145e6a6 100644
--- a/net/netfilter/xt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -91,7 +91,7 @@ static void connmark_tg_destroy(const struct xt_tgdtor_param *par)
 }
 
 static bool
-connmark_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+connmark_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_connmark_mtinfo1 *info = par->matchinfo;
 	enum ip_conntrack_info ctinfo;
diff --git a/net/netfilter/xt_conntrack.c b/net/netfilter/xt_conntrack.c
index 14a96f48001..39681f10291 100644
--- a/net/netfilter/xt_conntrack.c
+++ b/net/netfilter/xt_conntrack.c
@@ -113,7 +113,7 @@ ct_proto_port_check(const struct xt_conntrack_mtinfo2 *info,
 }
 
 static bool
-conntrack_mt(const struct sk_buff *skb, const struct xt_action_param *par,
+conntrack_mt(const struct sk_buff *skb, struct xt_action_param *par,
              u16 state_mask, u16 status_mask)
 {
 	const struct xt_conntrack_mtinfo2 *info = par->matchinfo;
@@ -191,7 +191,7 @@ conntrack_mt(const struct sk_buff *skb, const struct xt_action_param *par,
 }
 
 static bool
-conntrack_mt_v1(const struct sk_buff *skb, const struct xt_action_param *par)
+conntrack_mt_v1(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_conntrack_mtinfo1 *info = par->matchinfo;
 
@@ -199,7 +199,7 @@ conntrack_mt_v1(const struct sk_buff *skb, const struct xt_action_param *par)
 }
 
 static bool
-conntrack_mt_v2(const struct sk_buff *skb, const struct xt_action_param *par)
+conntrack_mt_v2(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_conntrack_mtinfo2 *info = par->matchinfo;
 
diff --git a/net/netfilter/xt_dccp.c b/net/netfilter/xt_dccp.c
index 7a4d4e8edc1..cc2c2919439 100644
--- a/net/netfilter/xt_dccp.c
+++ b/net/netfilter/xt_dccp.c
@@ -96,7 +96,7 @@ match_option(u_int8_t option, const struct sk_buff *skb, unsigned int protoff,
 }
 
 static bool
-dccp_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+dccp_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_dccp_info *info = par->matchinfo;
 	const struct dccp_hdr *dh;
diff --git a/net/netfilter/xt_dscp.c b/net/netfilter/xt_dscp.c
index 2133b509d15..64670fc5d0e 100644
--- a/net/netfilter/xt_dscp.c
+++ b/net/netfilter/xt_dscp.c
@@ -25,7 +25,7 @@ MODULE_ALIAS("ipt_tos");
 MODULE_ALIAS("ip6t_tos");
 
 static bool
-dscp_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+dscp_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_dscp_info *info = par->matchinfo;
 	u_int8_t dscp = ipv4_get_dsfield(ip_hdr(skb)) >> XT_DSCP_SHIFT;
@@ -34,7 +34,7 @@ dscp_mt(const struct sk_buff *skb, const struct xt_action_param *par)
 }
 
 static bool
-dscp_mt6(const struct sk_buff *skb, const struct xt_action_param *par)
+dscp_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_dscp_info *info = par->matchinfo;
 	u_int8_t dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> XT_DSCP_SHIFT;
@@ -54,8 +54,7 @@ static int dscp_mt_check(const struct xt_mtchk_param *par)
 	return 0;
 }
 
-static bool tos_mt(const struct sk_buff *skb,
-		   const struct xt_action_param *par)
+static bool tos_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_tos_match_info *info = par->matchinfo;
 
diff --git a/net/netfilter/xt_esp.c b/net/netfilter/xt_esp.c
index 39caafff948..7c2d8002055 100644
--- a/net/netfilter/xt_esp.c
+++ b/net/netfilter/xt_esp.c
@@ -36,8 +36,7 @@ spi_match(u_int32_t min, u_int32_t max, u_int32_t spi, bool invert)
 	return r;
 }
 
-static bool esp_mt(const struct sk_buff *skb,
-		   const struct xt_action_param *par)
+static bool esp_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct ip_esp_hdr *eh;
 	struct ip_esp_hdr _esp;
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 700c21e0804..25a6e548ec2 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -516,7 +516,7 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
 }
 
 static bool
-hashlimit_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+hashlimit_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_hashlimit_mtinfo1 *info = par->matchinfo;
 	struct xt_hashlimit_htable *hinfo = info->hinfo;
diff --git a/net/netfilter/xt_helper.c b/net/netfilter/xt_helper.c
index e941bd26a51..9f4ab00c805 100644
--- a/net/netfilter/xt_helper.c
+++ b/net/netfilter/xt_helper.c
@@ -24,7 +24,7 @@ MODULE_ALIAS("ip6t_helper");
 
 
 static bool
-helper_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+helper_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_helper_info *info = par->matchinfo;
 	const struct nf_conn *ct;
diff --git a/net/netfilter/xt_hl.c b/net/netfilter/xt_hl.c
index 335c34a4fd1..7d12221ead8 100644
--- a/net/netfilter/xt_hl.c
+++ b/net/netfilter/xt_hl.c
@@ -25,8 +25,7 @@ MODULE_LICENSE("GPL");
 MODULE_ALIAS("ipt_ttl");
 MODULE_ALIAS("ip6t_hl");
 
-static bool ttl_mt(const struct sk_buff *skb,
-		   const struct xt_action_param *par)
+static bool ttl_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct ipt_ttl_info *info = par->matchinfo;
 	const u8 ttl = ip_hdr(skb)->ttl;
@@ -45,8 +44,7 @@ static bool ttl_mt(const struct sk_buff *skb,
 	return false;
 }
 
-static bool hl_mt6(const struct sk_buff *skb,
-		   const struct xt_action_param *par)
+static bool hl_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct ip6t_hl_info *info = par->matchinfo;
 	const struct ipv6hdr *ip6h = ipv6_hdr(skb);
diff --git a/net/netfilter/xt_iprange.c b/net/netfilter/xt_iprange.c
index 9578860a921..88f7c3511c7 100644
--- a/net/netfilter/xt_iprange.c
+++ b/net/netfilter/xt_iprange.c
@@ -17,7 +17,7 @@
 #include <linux/netfilter/xt_iprange.h>
 
 static bool
-iprange_mt4(const struct sk_buff *skb, const struct xt_action_param *par)
+iprange_mt4(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_iprange_mtinfo *info = par->matchinfo;
 	const struct iphdr *iph = ip_hdr(skb);
@@ -68,7 +68,7 @@ iprange_ipv6_sub(const struct in6_addr *a, const struct in6_addr *b)
 }
 
 static bool
-iprange_mt6(const struct sk_buff *skb, const struct xt_action_param *par)
+iprange_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_iprange_mtinfo *info = par->matchinfo;
 	const struct ipv6hdr *iph = ipv6_hdr(skb);
diff --git a/net/netfilter/xt_length.c b/net/netfilter/xt_length.c
index 842149b4122..176e5570a99 100644
--- a/net/netfilter/xt_length.c
+++ b/net/netfilter/xt_length.c
@@ -21,7 +21,7 @@ MODULE_ALIAS("ipt_length");
 MODULE_ALIAS("ip6t_length");
 
 static bool
-length_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+length_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_length_info *info = par->matchinfo;
 	u_int16_t pktlen = ntohs(ip_hdr(skb)->tot_len);
@@ -30,7 +30,7 @@ length_mt(const struct sk_buff *skb, const struct xt_action_param *par)
 }
 
 static bool
-length_mt6(const struct sk_buff *skb, const struct xt_action_param *par)
+length_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_length_info *info = par->matchinfo;
 	const u_int16_t pktlen = ntohs(ipv6_hdr(skb)->payload_len) +
diff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c
index 7dcfe8602c8..32b7a579a03 100644
--- a/net/netfilter/xt_limit.c
+++ b/net/netfilter/xt_limit.c
@@ -65,7 +65,7 @@ static DEFINE_SPINLOCK(limit_lock);
 #define CREDITS_PER_JIFFY POW2_BELOW32(MAX_CPJ)
 
 static bool
-limit_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+limit_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_rateinfo *r = par->matchinfo;
 	struct xt_limit_priv *priv = r->master;
diff --git a/net/netfilter/xt_mac.c b/net/netfilter/xt_mac.c
index 36c49644ce3..8160f6b1435 100644
--- a/net/netfilter/xt_mac.c
+++ b/net/netfilter/xt_mac.c
@@ -25,8 +25,7 @@ MODULE_DESCRIPTION("Xtables: MAC address match");
 MODULE_ALIAS("ipt_mac");
 MODULE_ALIAS("ip6t_mac");
 
-static bool mac_mt(const struct sk_buff *skb,
-		   const struct xt_action_param *par)
+static bool mac_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_mac_info *info = par->matchinfo;
 	bool ret;
diff --git a/net/netfilter/xt_mark.c b/net/netfilter/xt_mark.c
index 3c8347076d5..23345238711 100644
--- a/net/netfilter/xt_mark.c
+++ b/net/netfilter/xt_mark.c
@@ -34,7 +34,7 @@ mark_tg(struct sk_buff *skb, const struct xt_action_param *par)
 }
 
 static bool
-mark_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+mark_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_mark_mtinfo1 *info = par->matchinfo;
 
diff --git a/net/netfilter/xt_multiport.c b/net/netfilter/xt_multiport.c
index 3140fd4049f..52beb68256c 100644
--- a/net/netfilter/xt_multiport.c
+++ b/net/netfilter/xt_multiport.c
@@ -72,7 +72,7 @@ ports_match_v1(const struct xt_multiport_v1 *minfo,
 }
 
 static bool
-multiport_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+multiport_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const __be16 *pptr;
 	__be16 _ports[2];
diff --git a/net/netfilter/xt_osf.c b/net/netfilter/xt_osf.c
index 37aa55860a9..4327e101c04 100644
--- a/net/netfilter/xt_osf.c
+++ b/net/netfilter/xt_osf.c
@@ -194,7 +194,7 @@ static inline int xt_osf_ttl(const struct sk_buff *skb, const struct xt_osf_info
 }
 
 static bool
-xt_osf_match_packet(const struct sk_buff *skb, const struct xt_action_param *p)
+xt_osf_match_packet(const struct sk_buff *skb, struct xt_action_param *p)
 {
 	const struct xt_osf_info *info = p->matchinfo;
 	const struct iphdr *ip = ip_hdr(skb);
diff --git a/net/netfilter/xt_owner.c b/net/netfilter/xt_owner.c
index 3dd1391d385..772d7389b33 100644
--- a/net/netfilter/xt_owner.c
+++ b/net/netfilter/xt_owner.c
@@ -18,7 +18,7 @@
 #include <linux/netfilter/xt_owner.h>
 
 static bool
-owner_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+owner_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_owner_match_info *info = par->matchinfo;
 	const struct file *filp;
diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c
index 298cd290b06..d7ca16b8b8d 100644
--- a/net/netfilter/xt_physdev.c
+++ b/net/netfilter/xt_physdev.c
@@ -22,7 +22,7 @@ MODULE_ALIAS("ip6t_physdev");
 
 
 static bool
-physdev_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+physdev_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
 	const struct xt_physdev_info *info = par->matchinfo;
diff --git a/net/netfilter/xt_pkttype.c b/net/netfilter/xt_pkttype.c
index d95f2149df9..5b645cb598f 100644
--- a/net/netfilter/xt_pkttype.c
+++ b/net/netfilter/xt_pkttype.c
@@ -23,7 +23,7 @@ MODULE_ALIAS("ipt_pkttype");
 MODULE_ALIAS("ip6t_pkttype");
 
 static bool
-pkttype_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+pkttype_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_pkttype_info *info = par->matchinfo;
 	u_int8_t type;
diff --git a/net/netfilter/xt_policy.c b/net/netfilter/xt_policy.c
index 1abfc7ad427..f23e97bb42d 100644
--- a/net/netfilter/xt_policy.c
+++ b/net/netfilter/xt_policy.c
@@ -110,7 +110,7 @@ match_policy_out(const struct sk_buff *skb, const struct xt_policy_info *info,
 }
 
 static bool
-policy_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+policy_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_policy_info *info = par->matchinfo;
 	int ret;
diff --git a/net/netfilter/xt_quota.c b/net/netfilter/xt_quota.c
index e79e07c75da..b4f7dfea598 100644
--- a/net/netfilter/xt_quota.c
+++ b/net/netfilter/xt_quota.c
@@ -23,7 +23,7 @@ MODULE_ALIAS("ip6t_quota");
 static DEFINE_SPINLOCK(quota_lock);
 
 static bool
-quota_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+quota_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	struct xt_quota_info *q = (void *)par->matchinfo;
 	struct xt_quota_priv *priv = q->master;
diff --git a/net/netfilter/xt_rateest.c b/net/netfilter/xt_rateest.c
index 53f7a4d12e1..76a083184d8 100644
--- a/net/netfilter/xt_rateest.c
+++ b/net/netfilter/xt_rateest.c
@@ -15,7 +15,7 @@
 
 
 static bool
-xt_rateest_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+xt_rateest_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_rateest_match_info *info = par->matchinfo;
 	struct gnet_stats_rate_est *r;
diff --git a/net/netfilter/xt_realm.c b/net/netfilter/xt_realm.c
index b063c783901..459a7b256eb 100644
--- a/net/netfilter/xt_realm.c
+++ b/net/netfilter/xt_realm.c
@@ -22,7 +22,7 @@ MODULE_DESCRIPTION("Xtables: Routing realm match");
 MODULE_ALIAS("ipt_realm");
 
 static bool
-realm_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+realm_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_realm_info *info = par->matchinfo;
 	const struct dst_entry *dst = skb_dst(skb);
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index 503b7f199f1..2808a7e3394 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -224,7 +224,7 @@ static void recent_table_flush(struct recent_table *t)
 }
 
 static bool
-recent_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+recent_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	struct net *net = dev_net(par->in ? par->in : par->out);
 	struct recent_net *recent_net = recent_pernet(net);
diff --git a/net/netfilter/xt_sctp.c b/net/netfilter/xt_sctp.c
index da4c3cb3140..94d8b5deb2d 100644
--- a/net/netfilter/xt_sctp.c
+++ b/net/netfilter/xt_sctp.c
@@ -114,7 +114,7 @@ match_packet(const struct sk_buff *skb,
 }
 
 static bool
-sctp_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+sctp_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_sctp_info *info = par->matchinfo;
 	const sctp_sctphdr_t *sh;
diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 2665e32d5db..3d54c236a1b 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -88,7 +88,7 @@ extract_icmp_fields(const struct sk_buff *skb,
 
 
 static bool
-socket_match(const struct sk_buff *skb, const struct xt_action_param *par,
+socket_match(const struct sk_buff *skb, struct xt_action_param *par,
 	     const struct xt_socket_mtinfo1 *info)
 {
 	const struct iphdr *iph = ip_hdr(skb);
@@ -174,13 +174,13 @@ socket_match(const struct sk_buff *skb, const struct xt_action_param *par,
 }
 
 static bool
-socket_mt_v0(const struct sk_buff *skb, const struct xt_action_param *par)
+socket_mt_v0(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	return socket_match(skb, par, NULL);
 }
 
 static bool
-socket_mt_v1(const struct sk_buff *skb, const struct xt_action_param *par)
+socket_mt_v1(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	return socket_match(skb, par, par->matchinfo);
 }
diff --git a/net/netfilter/xt_state.c b/net/netfilter/xt_state.c
index 344cca66109..e12e053d378 100644
--- a/net/netfilter/xt_state.c
+++ b/net/netfilter/xt_state.c
@@ -21,7 +21,7 @@ MODULE_ALIAS("ipt_state");
 MODULE_ALIAS("ip6t_state");
 
 static bool
-state_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+state_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_state_info *sinfo = par->matchinfo;
 	enum ip_conntrack_info ctinfo;
diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c
index ee4540a2cf3..96e62b8fd6b 100644
--- a/net/netfilter/xt_statistic.c
+++ b/net/netfilter/xt_statistic.c
@@ -30,7 +30,7 @@ MODULE_ALIAS("ip6t_statistic");
 static DEFINE_SPINLOCK(nth_lock);
 
 static bool
-statistic_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+statistic_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_statistic_info *info = par->matchinfo;
 	bool ret = info->flags & XT_STATISTIC_INVERT;
diff --git a/net/netfilter/xt_string.c b/net/netfilter/xt_string.c
index fd5dc5016a1..d3c48b14ab9 100644
--- a/net/netfilter/xt_string.c
+++ b/net/netfilter/xt_string.c
@@ -23,7 +23,7 @@ MODULE_ALIAS("ipt_string");
 MODULE_ALIAS("ip6t_string");
 
 static bool
-string_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+string_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_string_info *conf = par->matchinfo;
 	struct ts_state state;
diff --git a/net/netfilter/xt_tcpmss.c b/net/netfilter/xt_tcpmss.c
index 5c8a7b435d6..f90728f6b8a 100644
--- a/net/netfilter/xt_tcpmss.c
+++ b/net/netfilter/xt_tcpmss.c
@@ -25,7 +25,7 @@ MODULE_ALIAS("ipt_tcpmss");
 MODULE_ALIAS("ip6t_tcpmss");
 
 static bool
-tcpmss_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+tcpmss_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_tcpmss_match_info *info = par->matchinfo;
 	const struct tcphdr *th;
diff --git a/net/netfilter/xt_tcpudp.c b/net/netfilter/xt_tcpudp.c
index 19c31d4c2ba..dedde33c9db 100644
--- a/net/netfilter/xt_tcpudp.c
+++ b/net/netfilter/xt_tcpudp.c
@@ -62,8 +62,7 @@ tcp_find_option(u_int8_t option,
 	return invert;
 }
 
-static bool tcp_mt(const struct sk_buff *skb,
-		   const struct xt_action_param *par)
+static bool tcp_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct tcphdr *th;
 	struct tcphdr _tcph;
@@ -129,8 +128,7 @@ static int tcp_mt_check(const struct xt_mtchk_param *par)
 	return (tcpinfo->invflags & ~XT_TCP_INV_MASK) ? -EINVAL : 0;
 }
 
-static bool udp_mt(const struct sk_buff *skb,
-		   const struct xt_action_param *par)
+static bool udp_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct udphdr *uh;
 	struct udphdr _udph;
diff --git a/net/netfilter/xt_time.c b/net/netfilter/xt_time.c
index ffdb8fac0be..79234bb19d0 100644
--- a/net/netfilter/xt_time.c
+++ b/net/netfilter/xt_time.c
@@ -152,7 +152,7 @@ static void localtime_3(struct xtm *r, time_t time)
 }
 
 static bool
-time_mt(const struct sk_buff *skb, const struct xt_action_param *par)
+time_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_time_info *info = par->matchinfo;
 	unsigned int packet_time;
diff --git a/net/netfilter/xt_u32.c b/net/netfilter/xt_u32.c
index f62797b1ddb..a95b50342db 100644
--- a/net/netfilter/xt_u32.c
+++ b/net/netfilter/xt_u32.c
@@ -86,8 +86,7 @@ static bool u32_match_it(const struct xt_u32 *data,
 	return true;
 }
 
-static bool u32_mt(const struct sk_buff *skb,
-		   const struct xt_action_param *par)
+static bool u32_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_u32 *data = par->matchinfo;
 	bool ret;