From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755364AbXFRHrX (ORCPT ); Mon, 18 Jun 2007 03:47:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754956AbXFRHrQ (ORCPT ); Mon, 18 Jun 2007 03:47:16 -0400 Received: from nz-out-0506.google.com ([64.233.162.236]:34933 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751015AbXFRHrP (ORCPT ); Mon, 18 Jun 2007 03:47:15 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:from:to:cc:subject:date:message-id; b=js1m3sY9lRonR65adI3FqgJFr//Bf12v9N4oSeLEjOW4NBSTUPWByzkoA/4k4082YdTGJISYWA/Y5gn10FSuJRtIsjdL+1Znn/LZltgyIgzxyg2OUenAOoxFc6vd4OXoFaEkDImit9vg4rR6ShmO5eyupwriCra+IXY8Z9LkLeI= From: Denis Cheng To: trivial@kernel.org Cc: linux-kernel@vger.kernel.org Subject: the memset operation on a automatic array variable can be removed by data Initialization Date: Mon, 18 Jun 2007 00:47:14 -0700 (PDT) Message-ID: <46763882.16be600a.377c.ffff8f6f@mx.google.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Signed-Off-By: Denis Cheng --- arch/x86_64/mm/init.c.orig 2007-06-07 10:08:04.000000000 +0800 +++ arch/x86_64/mm/init.c 2007-06-18 14:43:15.000000000 +0800 @@ -406,8 +406,7 @@ void __cpuinit zap_low_mappings(int cpu) #ifndef CONFIG_NUMA void __init paging_init(void) { - unsigned long max_zone_pfns[MAX_NR_ZONES]; - memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); + unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, }; max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN; max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN; max_zone_pfns[ZONE_NORMAL] = end_pfn;