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, 1 insertions, 1 deletions

diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 6d1f9a63805..40c6a8d2a9e 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -288,7 +288,7 @@ struct xt_match {
            non-linear skb, using skb_header_pointer and
            skb_ip_make_writable. */
         bool (*match)(const struct sk_buff *skb,
-                      const struct xt_action_param *);
+                      struct xt_action_param *);
 
         /* Called when user tries to insert an entry of this type. */
         int (*checkentry)(const struct xt_mtchk_param *);