[src/trunk]: src/sys/net * remove just-for-kicks locking

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

details:   https://anonhg.NetBSD.org/src/rev/1f2928c8000d
branches:  trunk
changeset: 750827:1f2928c8000d
user:      pooka <pooka%NetBSD.org@localhost>
date:      Fri Jan 15 22:16:46 2010 +0000

description:
* remove just-for-kicks locking
* KNF
* remove outdated comment (quite a funny one to read in 2010, though)

diffstat:

 sys/net/bpf.c |  13 +++----------
 1 files changed, 3 insertions(+), 10 deletions(-)

diffs (43 lines):

diff -r 56ee0f306583 -r 1f2928c8000d sys/net/bpf.c
--- a/sys/net/bpf.c     Fri Jan 15 20:59:00 2010 +0000
+++ b/sys/net/bpf.c     Fri Jan 15 22:16:46 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bpf.c,v 1.150 2009/12/20 09:36:06 dsl Exp $    */
+/*     $NetBSD: bpf.c,v 1.151 2010/01/15 22:16:46 pooka Exp $  */
 
 /*
  * Copyright (c) 1990, 1991, 1993
@@ -39,7 +39,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bpf.c,v 1.150 2009/12/20 09:36:06 dsl Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bpf.c,v 1.151 2010/01/15 22:16:46 pooka Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_bpf.h"
@@ -361,23 +361,16 @@
 
 
 /*
- * Mark a descriptor free by making it point to itself.
- * This is probably cheaper than marking with a constant since
- * the address should be in a register anyway.
- */
-
-/*
  * bpfilterattach() is called at boot time.
  */
 /* ARGSUSED */
 void
 bpfilterattach(int n)
 {
+
        mutex_init(&bpf_mtx, MUTEX_DEFAULT, IPL_NONE);
 
-       mutex_enter(&bpf_mtx);
        LIST_INIT(&bpf_list);
-       mutex_exit(&bpf_mtx);
 
        bpf_gstats.bs_recv = 0;
        bpf_gstats.bs_drop = 0;