From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [XFRM]: alg_key_len should be unsigned to avoid integer divides Date: Sat, 12 Jan 2008 21:32:23 -0800 (PST) Message-ID: <20080112.213223.82837118.davem@davemloft.net> References: <4788F8FC.3010001@cosmosbay.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: dada1@cosmosbay.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:56240 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751189AbYAMFcY (ORCPT ); Sun, 13 Jan 2008 00:32:24 -0500 In-Reply-To: <4788F8FC.3010001@cosmosbay.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Sat, 12 Jan 2008 18:29:32 +0100 > alg_key_len is currently defined as 'signed int'. This unfortunatly leads > to integer divides in several paths. > > Converting it to unsigned is safe and saves 208 bytes of text on i386. > > Signed-off-by: Eric Dumazet Applied. I realigned the struct members in a follow-on changeset. commit 7305e737926be49e09718df53f4285bf69cc3755 Author: David S. Miller Date: Sat Jan 12 21:31:29 2008 -0800 [XFRM]: Fix struct xfrm_algo code formatting. Realign struct members. Signed-off-by: David S. Miller diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h index f8507ee..9b5b00c 100644 --- a/include/linux/xfrm.h +++ b/include/linux/xfrm.h @@ -91,9 +91,9 @@ struct xfrm_replay_state }; struct xfrm_algo { - char alg_name[64]; + char alg_name[64]; unsigned int alg_key_len; /* in bits */ - char alg_key[0]; + char alg_key[0]; }; struct xfrm_stats {