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>
diff --git a/net/netfilter/xt_realm.c b/net/netfilter/xt_realm.c
index b063c78..459a7b2 100644
--- a/net/netfilter/xt_realm.c
+++ b/net/netfilter/xt_realm.c
@@ -22,7 +22,7 @@
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);
