[NETFILTER]: nf_{conntrack,nat}_tftp: annotate TFTP helper with const

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/netfilter/nf_nat_tftp.c b/net/ipv4/netfilter/nf_nat_tftp.c
index 1360a94766dd..b096e81500ae 100644
--- a/net/ipv4/netfilter/nf_nat_tftp.c
+++ b/net/ipv4/netfilter/nf_nat_tftp.c
@@ -24,7 +24,7 @@ static unsigned int help(struct sk_buff *skb,
                          enum ip_conntrack_info ctinfo,
                          struct nf_conntrack_expect *exp)
 {
-        struct nf_conn *ct = exp->master;
+        const struct nf_conn *ct = exp->master;
 
         exp->saved_proto.udp.port
                 = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.udp.port;