[src/trunk]: src/sys/net Don't create an RTM_MISS message for every route all...

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

details:   https://anonhg.NetBSD.org/src/rev/44089708ff5a
branches:  trunk
changeset: 814751:44089708ff5a
user:      christos <christos%NetBSD.org@localhost>
date:      Thu Apr 07 03:09:56 2016 +0000

description:
Don't create an RTM_MISS message for every route allocation.
GC unused code and variables.

diffstat:

 sys/net/route.c |  29 ++++++++++++++---------------
 1 files changed, 14 insertions(+), 15 deletions(-)

diffs (64 lines):

diff -r de208515e8cd -r 44089708ff5a sys/net/route.c
--- a/sys/net/route.c   Thu Apr 07 01:00:05 2016 +0000
+++ b/sys/net/route.c   Thu Apr 07 03:09:56 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: route.c,v 1.158 2016/04/04 07:37:07 ozaki-r Exp $      */
+/*     $NetBSD: route.c,v 1.159 2016/04/07 03:09:56 christos Exp $     */
 
 /*-
  * Copyright (c) 1998, 2008 The NetBSD Foundation, Inc.
@@ -96,7 +96,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: route.c,v 1.158 2016/04/04 07:37:07 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: route.c,v 1.159 2016/04/07 03:09:56 christos Exp $");
 
 #include <sys/param.h>
 #ifdef RTFLUSH_DEBUG
@@ -393,33 +393,32 @@
 {
        rtbl_t *rtbl;
        struct rtentry *rt;
-       struct rtentry *newrt = NULL;
-       struct rt_addrinfo info;
-       int  s = splsoftnet(), err = 0, msgtype = RTM_MISS;
+       int s;
 
+       s = splsoftnet();
        rtbl = rt_gettable(dst->sa_family);
-       if (rtbl == NULL) {
-               rtstat.rts_unreach++;
+       if (rtbl == NULL)
                goto miss;
-       }
 
        rt = rt_matchaddr(rtbl, dst);
-       if (rt == NULL) {
-               rtstat.rts_unreach++;
+       if (rt == NULL)
                goto miss;
-       }
+
        rt->rt_refcnt++;
 
-       newrt = rt;
+       splx(s);
+       return rt;
 miss:
+       rtstat.rts_unreach++;
        if (report) {
+               struct rt_addrinfo info;
+
                memset((void *)&info, 0, sizeof(info));
                info.rti_info[RTAX_DST] = dst;
-               rt_missmsg(msgtype, &info, 0, err);
+               rt_missmsg(RTM_MISS, &info, 0, 0);
        }
-
        splx(s);
-       return newrt;
+       return NULL;
 }
 
 #ifdef DEBUG