optlen             27 net/netfilter/nft_exthdr.c static unsigned int optlen(const u8 *opt, unsigned int offset)
optlen             34 net/netfilter/xt_TCPMSS.c optlen(const u_int8_t *opt, unsigned int offset)
optlen             19 net/netfilter/xt_TCPOPTSTRIP.c static inline unsigned int optlen(const u_int8_t *opt, unsigned int offset)