From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Perches Subject: Re: [PATCH net-next v2 0/6] slight optimization of addr compare for some modules Date: Mon, 16 Dec 2013 09:25:48 -0800 Message-ID: <1387214748.18217.52.camel@joe-AO722> References: <52AEB8B3.5010405@huawei.com> <1387205111.18217.7.camel@joe-AO722> <52AF13F4.5040409@gmail.com> <1387207006.18217.28.camel@joe-AO722> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Cc: Ding Tianhong , "David S. Miller" , Netdev To: Ding Tianhong Return-path: Received: from smtprelay0060.hostedemail.com ([216.40.44.60]:53666 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754564Ab3LPRZv (ORCPT ); Mon, 16 Dec 2013 12:25:51 -0500 In-Reply-To: <1387207006.18217.28.camel@joe-AO722> Sender: netdev-owner@vger.kernel.org List-ID: Hi again Ding. These should still be inspected for appropriate use of ether_addr_equal or ether_addr_equal_unaligned, but a better cocci input sp-file is: $ cat ether_addr_equal_unaligned.cocci @@ expression e1; expression e2; @@ - !memcmp(e1, e2, \(6\|ETH_ALEN\)) + ether_addr_equal_unaligned(e1, e2) @@ expression e1; expression e2; @@ - memcmp(e1, e2, \(6\|ETH_ALEN\)) == 0 + ether_addr_equal_unaligned(e1, e2) @@ expression e1; expression e2; @@ - memcmp(e1, e2, \(6\|ETH_ALEN\)) + !ether_addr_equal_unaligned(e1, e2) @@ expression e1; expression e2; @@ - memcmp(e1, e2, \(6\|ETH_ALEN\)) != 0 + !ether_addr_equal_unaligned(e1, e2)