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-rw-r--r--sys/netinet/udp_usrreq.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c
index cd21b8640441..a6be949286b8 100644
--- a/sys/netinet/udp_usrreq.c
+++ b/sys/netinet/udp_usrreq.c
@@ -421,7 +421,9 @@ udp_multi_input(struct mbuf *m, int proto, struct sockaddr_in *udp_in)
struct ip *ip = mtod(m, struct ip *);
struct inpcb_iterator inpi = INP_ITERATOR(udp_get_inpcbinfo(proto),
INPLOOKUP_RLOCKPCB, udp_multi_match, ip);
+#ifdef KDTRACE_HOOKS
struct udphdr *uh = (struct udphdr *)(ip + 1);
+#endif
struct inpcb *inp;
struct mbuf *n;
int appends = 0;