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);