[NETFILTER]: nf_{conntrack,nat}_proto_gre: annotate 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>

diff --git a/net/ipv4/netfilter/nf_nat_proto_gre.c b/net/ipv4/netfilter/nf_nat_proto_gre.c
index b887ebb..a1e4da1 100644 (file)
--- a/net/ipv4/netfilter/nf_nat_proto_gre.c
+++ b/net/ipv4/netfilter/nf_nat_proto_gre.c
@@ -104,7 +104,7 @@ gre_manip_pkt(struct sk_buff *skb, unsigned int iphdroff,
 {
        struct gre_hdr *greh;
        struct gre_hdr_pptp *pgreh;
-       struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
+       const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
        unsigned int hdroff = iphdroff + iph->ihl * 4;
 
        /* pgreh includes two optional 32bit fields which are not required

diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index 4a185f6..e10024a 100644 (file)
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -161,9 +161,11 @@ static int gre_pkt_to_tuple(const struct sk_buff *skb,
                           unsigned int dataoff,
                           struct nf_conntrack_tuple *tuple)
 {
-       struct gre_hdr_pptp _pgrehdr, *pgrehdr;
+       const struct gre_hdr_pptp *pgrehdr;
+       struct gre_hdr_pptp _pgrehdr;
        __be16 srckey;
-       struct gre_hdr _grehdr, *grehdr;
+       const struct gre_hdr *grehdr;
+       struct gre_hdr _grehdr;
 
        /* first only delinearize old RFC1701 GRE header */
        grehdr = skb_header_pointer(skb, dataoff, sizeof(_grehdr), &_grehdr);