From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5C3FDC43142 for ; Thu, 2 Aug 2018 03:30:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1089320841 for ; Thu, 2 Aug 2018 03:30:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1089320841 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726929AbeHBFTI (ORCPT ); Thu, 2 Aug 2018 01:19:08 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:47011 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726032AbeHBFTI (ORCPT ); Thu, 2 Aug 2018 01:19:08 -0400 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 589D3747C9C56; Thu, 2 Aug 2018 11:30:02 +0800 (CST) Received: from [127.0.0.1] (10.177.29.68) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.399.0; Thu, 2 Aug 2018 11:29:57 +0800 Message-ID: <5B627AB2.8000101@huawei.com> Date: Thu, 2 Aug 2018 11:29:54 +0800 From: zhong jiang User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Bart Van Assche CC: "andy.shevchenko@gmail.com" , "aacraid@microsemi.com" , "jejb@linux.vnet.ibm.com" , "john.garry@huawei.com" , "martin.petersen@oracle.com" , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 2/2] scsi:qlogicfas408: remove the same check in qlogicfas408_detect References: <1533177901-19514-1-git-send-email-zhongjiang@huawei.com> <1533177901-19514-3-git-send-email-zhongjiang@huawei.com> In-Reply-To: Content-Type: text/plain; charset="UTF-7" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.29.68] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2018/8/2 11:21, Bart Van Assche wrote: > On Thu, 2018-08-02 at 10:45 +ACs-0800, zhong jiang wrote: >> we should not use same check in a expression. just remove one >> of them. >> >> Signed-off-by: zhong jiang >> --- >> drivers/scsi/qlogicfas408.c +AHw- 3 +ACs--- >> 1 file changed, 1 insertion(+ACs-), 2 deletions(-) >> >> diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c >> index 8b471a9..1409ac1 100644 >> --- a/drivers/scsi/qlogicfas408.c >> +ACsAKwAr- b/drivers/scsi/qlogicfas408.c >> +AEAAQA- -567,8 +ACs-567,7 +AEAAQA- void qlogicfas408+AF8-setup(int qbase, int id, int int+AF8-type) >> int qlogicfas408+AF8-detect(int qbase, int int+AF8-type) >> +AHs- >> REG1; >> - return (((inb(qbase +ACs- 0xe) +AF4- inb(qbase +ACs- 0xe)) == 7) +ACYAJg- >> - ((inb(qbase +ACs- 0xe) +AF4- inb(qbase +ACs- 0xe)) == 7)); >> +ACs- return (inb(qbase +ACs- 0xe) +AF4- inb(qbase +ACs- 0xe)) == 7; >> +AH0- > Does inb() have any side effects? just redundant. is it necessary for this . Maybe I miss something. Thanks, zhong jiang > Bart. > > >