[src/trunk]: src/sys/arch/xen/xen Check status before proceeding further. Avo...

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

details:   https://anonhg.NetBSD.org/src/rev/e826b239ca5d
branches:  trunk
changeset: 764483:e826b239ca5d
user:      jym <jym%NetBSD.org@localhost>
date:      Mon Apr 25 17:01:54 2011 +0000

description:
Check status before proceeding further. Avoids spurious watch calls.

diffstat:

 sys/arch/xen/xen/if_xennet_xenbus.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r a3257711e43e -r e826b239ca5d sys/arch/xen/xen/if_xennet_xenbus.c
--- a/sys/arch/xen/xen/if_xennet_xenbus.c       Mon Apr 25 14:14:22 2011 +0000
+++ b/sys/arch/xen/xen/if_xennet_xenbus.c       Mon Apr 25 17:01:54 2011 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: if_xennet_xenbus.c,v 1.49 2011/04/25 00:00:50 jym Exp $      */
+/*      $NetBSD: if_xennet_xenbus.c,v 1.50 2011/04/25 17:01:54 jym Exp $      */
 
 /*
  * Copyright (c) 2006 Manuel Bouyer.
@@ -85,7 +85,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_xennet_xenbus.c,v 1.49 2011/04/25 00:00:50 jym Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_xennet_xenbus.c,v 1.50 2011/04/25 17:01:54 jym Exp $");
 
 #include "opt_xen.h"
 #include "opt_nfs_boot.h"
@@ -570,6 +570,8 @@
                xenbus_switch_state(sc->sc_xbusd, NULL, XenbusStateClosed);
                break;
        case XenbusStateInitWait:
+               if (sc->sc_backend_status == BEST_CONNECTED)
+                       break;
                if (xennet_talk_to_backend(sc) == 0)
                        xenbus_switch_state(sc->sc_xbusd, NULL,
                            XenbusStateConnected);