From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759241AbZEOHvv (ORCPT ); Fri, 15 May 2009 03:51:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754957AbZEOHvm (ORCPT ); Fri, 15 May 2009 03:51:42 -0400 Received: from mx2.redhat.com ([66.187.237.31]:59381 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754633AbZEOHvl (ORCPT ); Fri, 15 May 2009 03:51:41 -0400 Date: Fri, 15 May 2009 03:51:18 -0400 From: Amerigo Wang To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, Amerigo Wang , Sam Ravnborg Message-Id: <20090515075229.11346.6710.sendpatchset@localhost.localdomain> Subject: [Patch] kbuild: fix a compile warning Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I got this warning: HOSTCC scripts/basic/fixdep scripts/basic/fixdep.c: In function 'traps': scripts/basic/fixdep.c:377: warning: dereferencing type-punned pointer will break strict-aliasing rules scripts/basic/fixdep.c:379: warning: dereferencing type-punned pointer will break strict-aliasing rules Patch below fixes it. Signed-off-by: WANG Cong Cc: Sam Ravnborg --- diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c index 8912c0f..72c1520 100644 --- a/scripts/basic/fixdep.c +++ b/scripts/basic/fixdep.c @@ -373,10 +373,11 @@ void print_deps(void) void traps(void) { static char test[] __attribute__((aligned(sizeof(int)))) = "CONF"; + int *p = (int *)test; - if (*(int *)test != INT_CONF) { + if (*p != INT_CONF) { fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianess? %#x\n", - *(int *)test); + *p); exit(2); } }