src: Fix bridge_rtdelete

[Repository Conversion <srcmastr%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fc544399e66a
branches:  trunk
changeset: 318009:fc544399e66a
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Tue Apr 10 07:05:39 2018 +0000
description:
Fix bridge_rtdelete

It removes a rtable entry that belongs to a specified interface, however, its
original behavior was to delete all belonging entries.  Restore the original
behavior.

diffstat:

 sys/net/if_bridge.c |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (36 lines):

diff -r 85a037766c3c -r fc544399e66a sys/net/if_bridge.c
--- a/sys/net/if_bridge.c       Tue Apr 10 06:32:23 2018 +0000
+++ b/sys/net/if_bridge.c       Tue Apr 10 07:05:39 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_bridge.c,v 1.148 2018/01/15 09:49:16 maxv Exp $     */
+/*     $NetBSD: if_bridge.c,v 1.149 2018/04/10 07:05:39 ozaki-r Exp $  */
 
 /*
  * Copyright 2001 Wasabi Systems, Inc.
@@ -80,7 +80,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_bridge.c,v 1.148 2018/01/15 09:49:16 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_bridge.c,v 1.149 2018/04/10 07:05:39 ozaki-r Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_bridge_ipf.h"
@@ -2299,6 +2299,8 @@
 {
        struct bridge_rtnode *brt;
 
+       /* XXX pserialize_perform for each entry is slow */
+again:
        BRIDGE_RT_LOCK(sc);
        LIST_FOREACH(brt, &sc->sc_rtlist, brt_list) {
                if (brt->brt_ifp == ifp)
@@ -2313,6 +2315,8 @@
        BRIDGE_RT_UNLOCK(sc);
 
        bridge_rtnode_destroy(brt);
+
+       goto again;
 }
 
 /*