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>

1 files changed, 3 insertions, 3 deletions

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);
 }