Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756083AbYJJFj7 (ORCPT ); Fri, 10 Oct 2008 01:39:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752682AbYJJFju (ORCPT ); Fri, 10 Oct 2008 01:39:50 -0400 Received: from wf-out-1314.google.com ([209.85.200.173]:38605 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752668AbYJJFju (ORCPT ); Fri, 10 Oct 2008 01:39:50 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=u/74pa8FXQPeFt/9ZIKcmcq2eJW0yfSfE5wTAJiyGuN2juZ7c0mz4irkk2bnQb3fr7 GN+W/u76qGQrmZyl5jNkHl4RQ83xUJhLqSThQMwiZfd3Rwg3ktCIjNuOq48sS4JYQh9O aTfvCKGumtE3nzXL8QnFWFJJa0RdsBUj/aMf4= Subject: Re: [PATCH 3/4] xtensa: Change unaligned access to use packed struct implementation From: Harvey Harrison To: Chris Zankel Cc: Andrew Morton , LKML , Bob Wilson In-Reply-To: <48EEE546.9070405@zankel.net> References: <1223447904.8195.67.camel@brick> <48EEE546.9070405@zankel.net> Content-Type: text/plain Date: Thu, 09 Oct 2008 22:39:47 -0700 Message-Id: <1223617187.8991.1.camel@brick> Mime-Version: 1.0 X-Mailer: Evolution 2.24.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 647 Lines: 23 On Thu, 2008-10-09 at 22:16 -0700, Chris Zankel wrote: > Hi Harvey, > > Please allow me a couple of days to look into it. I don't know the > historic reasons why the memmove variant was chosen. > > Thanks, > -Chris > Sure, from the comments in the original version, it looks like it was done this way to avoid __builtin_memcpy from being generated. But maybe there was another reason? Harvey -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/