Received: by 2002:ac0:a582:0:0:0:0:0 with SMTP id m2-v6csp638426imm; Wed, 17 Oct 2018 06:07:19 -0700 (PDT) X-Google-Smtp-Source: ACcGV63m3Wjd7YWmU2b2BAuLJJZOniWeEUe5+p1Pdm92oh4wwAR3LxUXGf6qN5kjs98n/ykeyI+t X-Received: by 2002:a63:1342:: with SMTP id 2-v6mr24272703pgt.19.1539781639304; Wed, 17 Oct 2018 06:07:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1539781639; cv=none; d=google.com; s=arc-20160816; b=06q41sOXuC/vMgpgs7eCmyoSucEorDzjVA1eBJg/txwUUTNtSejV55WbqNNUjam4N7 WH6N76zOXL6fct4hiaAJh04xP5XR2pDMJ1mMGlAMBVcSb3KLunQBG2u2PVp4N4A2k0DR +u94nTs3UKYvVLZXL711j7Zm/wBU/48cbuE94wHYf48Hc+0Tvpi/7Ez5IMMWvLZCR3tM E1oouz31WDkt69kSh5usBVwpwxfN8gHbT6a9VjECec1VJk7j+m+BjH17+XJ3ZvV5mgNq 91Ja9il3XO5bK29y/YP6xRjnC+aNQagEuuyz9DcFIBVdlagkujZ5RS339FaqZ0Ei6z9y ivNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=5UtiwJFmqApREfLVzU8NLEVpujqzBi0V/cB0/5l8+KM=; b=d1dkaMTQ+sG6dW7a55UKrOq9CVJEY/ZdepUxvoN/lFzJ2GGDbdpPMyhxvKN8+KplmU VRuDePv/KtQ0syuExh1Y9HB1BAr6pNs/Ge8dclzHKPqz3W76N1fGL1daNr9UNfxMxrH7 LuG1uesN87gk+1TcTMC0PxOkOVt1k4y73IIxLnXeqrD/S9+vAV4FNzRblKHC//Nz4aEY BCp0lIPfqAEJAu5xdhu0/P+bhl7U/jTFnr8TikjVVAywwaxgDEyIan4FyfM2v6wNn1dK YeV3PjYidXXEBx0+t8mJ6VsFzv8rAyCAwjaDdg4fphFIHoRi8t8I9xSJjTnkLL3NcSgE 5v2w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f23-v6si16402885pfn.85.2018.10.17.06.06.58; Wed, 17 Oct 2018 06:07:19 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727247AbeJQVAd (ORCPT + 99 others); Wed, 17 Oct 2018 17:00:33 -0400 Received: from mx2.suse.de ([195.135.220.15]:36722 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727000AbeJQVAd (ORCPT ); Wed, 17 Oct 2018 17:00:33 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 14FD1ACC8; Wed, 17 Oct 2018 13:04:55 +0000 (UTC) Subject: Re: [PATCH -next] advansys: remove set but not used variable 'srb_tag' in adv_isr_callback To: Matthew Wilcox Cc: YueHaibing , hare@suse.com, jejb@linux.vnet.ibm.com, martin.petersen@oracle.com, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org References: <20181017123432.18304-1-yuehaibing@huawei.com> <4950b4fe-61b5-e1c3-9d16-7643107857a5@suse.de> <20181017130022.GA3575@bombadil.infradead.org> From: Johannes Thumshirn Message-ID: <73b10652-5ccf-4760-4aba-9f58600b6da6@suse.de> Date: Wed, 17 Oct 2018 15:04:54 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20181017130022.GA3575@bombadil.infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 17/10/18 15:00, Matthew Wilcox wrote: > On Wed, Oct 17, 2018 at 02:49:50PM +0200, Johannes Thumshirn wrote: >> On 17/10/18 14:34, YueHaibing wrote: >>> - srb_tag = le32_to_cpu(scsiqp->srb_tag); >>> scp = scsi_host_find_tag(boardp->shost, scsiqp->srb_tag); >> >> Shouldn't this be: >> scp = scsi_host_find_tag(boardp->shost, >> le32_to_cpu(scsiqp->srb_tag)); > > I don't think so. Look at how scsiqp->srb_tag is set: > > adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, > ADV_SCSI_REQ_Q **adv_scsiqpp) > { > + u32 srb_tag = scp->request->tag; > ... > + scsiqp->srb_tag = srb_tag; > > If we're not converting it to le32 on the way in, we probably don't want > to convert it back on the way out. Yeah right, didn't check the submission path. It was just the removed srb_tag = le32_to_cpu(scsiqp->srb_tag); that triggered here. > Please don't make me power up my PA-RISC machine with an Advansys card > in it, just to find out ... Now that your saying it... -- Johannes Thumshirn SUSE Labs jthumshirn@suse.de +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850