[src/trunk]: src/sys/net Add missing splnet to if_deferred_start_common

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5520128410f6
branches:  trunk
changeset: 351954:5520128410f6
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Tue Mar 07 01:32:03 2017 +0000

description:
Add missing splnet to if_deferred_start_common

if_start should run in splnet to avoid running interrupt handlers.

diffstat:

 sys/net/if.c |  9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diffs (31 lines):

diff -r db5824142b07 -r 5520128410f6 sys/net/if.c
--- a/sys/net/if.c      Tue Mar 07 01:28:37 2017 +0000
+++ b/sys/net/if.c      Tue Mar 07 01:32:03 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if.c,v 1.381 2017/02/23 07:57:10 ozaki-r Exp $ */
+/*     $NetBSD: if.c,v 1.382 2017/03/07 01:32:03 ozaki-r Exp $ */
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2008 The NetBSD Foundation, Inc.
@@ -90,7 +90,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.381 2017/02/23 07:57:10 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.382 2017/03/07 01:32:03 ozaki-r Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_inet.h"
@@ -1008,8 +1008,11 @@
 static void
 if_deferred_start_common(struct ifnet *ifp)
 {
-
+       int s;
+
+       s = splnet();
        if_start_lock(ifp);
+       splx(s);
 }
 
 static inline bool