[src/trunk]: src/sys/netinet udp6_input: correct loopback test.

[yamt <yamt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/21e4e8e8db32
branches:  trunk
changeset: 572103:21e4e8e8db32
user:      yamt <yamt%NetBSD.org@localhost>
date:      Sat Dec 18 15:31:26 2004 +0000

description:
udp6_input: correct loopback test.

diffstat:

 sys/netinet/udp_usrreq.c |  9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diffs (30 lines):

diff -r 1c3efbd65e89 -r 21e4e8e8db32 sys/netinet/udp_usrreq.c
--- a/sys/netinet/udp_usrreq.c  Sat Dec 18 11:55:02 2004 +0000
+++ b/sys/netinet/udp_usrreq.c  Sat Dec 18 15:31:26 2004 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: udp_usrreq.c,v 1.126 2004/12/17 22:54:52 christos Exp $        */
+/*     $NetBSD: udp_usrreq.c,v 1.127 2004/12/18 15:31:26 yamt Exp $    */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -61,7 +61,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: udp_usrreq.c,v 1.126 2004/12/17 22:54:52 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: udp_usrreq.c,v 1.127 2004/12/18 15:31:26 yamt Exp $");
 
 #include "opt_inet.h"
 #include "opt_ipsec.h"
@@ -430,9 +430,8 @@
         * Checksum extended UDP header and data.  Maybe skip checksum
         * on loopback interfaces.
         */
-       if (__predict_true(!(m->m_pkthdr.rcvif->if_flags &
-                            IFF_LOOPBACK) ||
-                          udp_do_loopback_cksum)) {
+       if (__predict_true((m->m_flags & M_LOOP) == 0 ||
+           udp_do_loopback_cksum)) {
                if (uh->uh_sum == 0) {
                        udp6stat.udp6s_nosum++;
                        goto bad;