[NETFILTER]: nf_nat: remove unused argument of function allocating binding

nf_nat_rule_find, alloc_null_binding and alloc_null_binding_confirmed
do not use the argument 'info', which is actually ct->nat.info.
If they are necessary to access it again, we can use the argument 'ct'
instead.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 8 deletions

diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c
index 64bbed2ba78..55dac36dbc8 100644
--- a/net/ipv4/netfilter/nf_nat_standalone.c
+++ b/net/ipv4/netfilter/nf_nat_standalone.c
@@ -80,7 +80,6 @@ nf_nat_fn(unsigned int hooknum,
         struct nf_conn *ct;
         enum ip_conntrack_info ctinfo;
         struct nf_conn_nat *nat;
-        struct nf_nat_info *info;
         /* maniptype == SRC for postrouting. */
         enum nf_nat_manip_type maniptype = HOOK2MANIP(hooknum);
 
@@ -129,7 +128,6 @@ nf_nat_fn(unsigned int hooknum,
                 }
                 /* Fall thru... (Only ICMPs can be IP_CT_IS_REPLY) */
         case IP_CT_NEW:
-                info = &nat->info;
 
                 /* Seen it before?  This can happen for loopback, retrans,
                    or local packets.. */
@@ -138,14 +136,13 @@ nf_nat_fn(unsigned int hooknum,
 
                         if (unlikely(nf_ct_is_confirmed(ct)))
                                 /* NAT module was loaded late */
-                                ret = alloc_null_binding_confirmed(ct, info,
-                                                                   hooknum);
+                                ret = alloc_null_binding_confirmed(ct, hooknum);
                         else if (hooknum == NF_IP_LOCAL_IN)
                                 /* LOCAL_IN hook doesn't have a chain!  */
-                                ret = alloc_null_binding(ct, info, hooknum);
+                                ret = alloc_null_binding(ct, hooknum);
                         else
                                 ret = nf_nat_rule_find(pskb, hooknum, in, out,
-                                                       ct, info);
+                                                       ct);
 
                         if (ret != NF_ACCEPT) {
                                 return ret;
@@ -160,10 +157,8 @@ nf_nat_fn(unsigned int hooknum,
                 /* ESTABLISHED */
                 NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
                              ctinfo == (IP_CT_ESTABLISHED+IP_CT_IS_REPLY));
-                info = &nat->info;
         }
 
-        NF_CT_ASSERT(info);
         return nf_nat_packet(ct, ctinfo, hooknum, pskb);
 }