bpf_filter: remove unnecessary memset(), add a comment.

This commit is contained in:
rmind 2012-08-02 20:13:24 +00:00
parent 020a6ad2d4
commit c6beecf3ad
1 changed files with 6 additions and 3 deletions

View File

@ -1,4 +1,4 @@
/* $NetBSD: bpf_filter.c,v 1.51 2012/08/01 23:24:29 rmind Exp $ */
/* $NetBSD: bpf_filter.c,v 1.52 2012/08/02 20:13:24 rmind Exp $ */
/*-
* Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: bpf_filter.c,v 1.51 2012/08/01 23:24:29 rmind Exp $");
__KERNEL_RCSID(0, "$NetBSD: bpf_filter.c,v 1.52 2012/08/02 20:13:24 rmind Exp $");
#if 0
#if !(defined(lint) || defined(KERNEL))
@ -149,7 +149,10 @@ bpf_filter(const struct bpf_insn *pc, const u_char *p, u_int wirelen,
return (u_int)-1;
}
memset(mem, 0, sizeof(mem));
/*
* Note: safe to leave memwords uninitialised, as the validation
* step ensures that it will not be read, if it was not written.
*/
A = 0;
X = 0;
--pc;