<dec f='src/src/sys/netinet6/ip6_var.h' l='363' type='int ip6_optlen(struct in6pcb * )'/>
<use f='src/src/sys/netinet/tcp_output.c' l='379' u='c' c='tcp_segsize'/>
<use f='src/src/sys/netinet/tcp_subr.c' l='2003' u='c' c='tcp_mss_from_peer'/>
<def f='src/src/sys/netinet6/ip6_output.c' l='3284' ll='3302' type='int ip6_optlen(struct in6pcb * in6p)'/>
<doc f='src/src/sys/netinet6/ip6_output.c' l='3281'>/*
 * Compute IPv6 extension header length.
 */</doc>
