diff options
Diffstat (limited to 'sys/netinet/tcp_subr.c')
| -rw-r--r-- | sys/netinet/tcp_subr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c index 2eebce4..cb709fb 100644 --- a/sys/netinet/tcp_subr.c +++ b/sys/netinet/tcp_subr.c @@ -1420,11 +1420,14 @@ tcp_mtudisc(inp, errno) u_int romtu; int mss; #ifdef INET6 - int isipv6 = (tp->t_inpcb->inp_vflag & INP_IPV6) != 0; + int isipv6; #endif /* INET6 */ bzero(&tao, sizeof(tao)); if (tp != NULL) { +#ifdef INET6 + isipv6 = (tp->t_inpcb->inp_vflag & INP_IPV6) != 0; +#endif maxmtu = tcp_hc_getmtu(&inp->inp_inc); /* IPv4 and IPv6 */ romtu = #ifdef INET6 |
