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=-5.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 CE821C433E2 for ; Wed, 22 Jul 2020 15:06:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B167920658 for ; Wed, 22 Jul 2020 15:06:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732467AbgGVPG0 (ORCPT ); Wed, 22 Jul 2020 11:06:26 -0400 Received: from mail-pg1-f195.google.com ([209.85.215.195]:42346 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727810AbgGVPG0 (ORCPT ); Wed, 22 Jul 2020 11:06:26 -0400 Received: by mail-pg1-f195.google.com with SMTP id m22so1408797pgv.9; Wed, 22 Jul 2020 08:06:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=FwaDxs5hHwFUWBxX5yteAR0SP9cCbD/rh8EcnRE2k5c=; b=m5+iO2b67PjpPlTZuOTwOHYmEbwcf2/SxZGIweUvPEexCoC8GAcBqIOs91OGeNxe// PEA+kdMagzKApwlkcDdG0Fjtl6eZyXmXUnb7AnCGWX+r3N6dsTxfPc648KJNItEhnt4I aIGqcQG6sPvoYc++imR+cG3tgBPRVCf6IGeN+arQ8ToN38uCpisvFb0UtVVFkKUG5y54 XtepwEgTHvaCTNvECcpRIbyOjvdMTZvwS4HZQ0Ri1SrmT/J/7Lf8FUiRaPLuhxN+ZDHm WsjxYiMuIy4MmesVeFEACO3ndCjDfXzHPpQSMvRvet3oHQim2AVKfhn9DHyxFE/ZH5V+ fbzg== X-Gm-Message-State: AOAM531ua/cEoEAafCCR16Gd0Lp0m5WBlG8U/saecW1vVoaL0n16Ku85 FtvGWfIKoT0CBEE0RhRVkMA= X-Google-Smtp-Source: ABdhPJyEf5xrAPUVnM9Bpao7ccVZGkuHPxozBUZU3wh9vQ7HV5Rckfj8WjEkknUSFj7gyU/bYxFcag== X-Received: by 2002:a65:620e:: with SMTP id d14mr258723pgv.360.1595430385070; Wed, 22 Jul 2020 08:06:25 -0700 (PDT) Received: from [192.168.50.147] (c-73-241-217-19.hsd1.ca.comcast.net. [73.241.217.19]) by smtp.gmail.com with ESMTPSA id q5sm131957pfc.130.2020.07.22.08.06.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Jul 2020 08:06:24 -0700 (PDT) Subject: Re: [PATCH v6 2/5] scsi: ufs: Add UFS-feature layer To: "Martin K. Petersen" , Christoph Hellwig Cc: Daejun Park , "avri.altman@wdc.com" , "jejb@linux.ibm.com" , "asutoshd@codeaurora.org" , "beanhuo@micron.com" , "stanley.chu@mediatek.com" , "cang@codeaurora.org" , "tomas.winkler@intel.com" , ALIM AKHTAR , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Sang-yoon Oh , Sung-Jun Park , yongmyung lee , Jinyoung CHOI , Adel Choi , BoRam Shin References: <231786897.01594636801601.JavaMail.epsvc@epcpadp1> <963815509.21594636682161.JavaMail.epsvc@epcpadp2> <231786897.01594637401708.JavaMail.epsvc@epcpadp1> <20200722064112.GB21117@infradead.org> From: Bart Van Assche Autocrypt: addr=bvanassche@acm.org; prefer-encrypt=mutual; keydata= mQENBFSOu4oBCADcRWxVUvkkvRmmwTwIjIJvZOu6wNm+dz5AF4z0FHW2KNZL3oheO3P8UZWr LQOrCfRcK8e/sIs2Y2D3Lg/SL7qqbMehGEYcJptu6mKkywBfoYbtBkVoJ/jQsi2H0vBiiCOy fmxMHIPcYxaJdXxrOG2UO4B60Y/BzE6OrPDT44w4cZA9DH5xialliWU447Bts8TJNa3lZKS1 AvW1ZklbvJfAJJAwzDih35LxU2fcWbmhPa7EO2DCv/LM1B10GBB/oQB5kvlq4aA2PSIWkqz4 3SI5kCPSsygD6wKnbRsvNn2mIACva6VHdm62A7xel5dJRfpQjXj2snd1F/YNoNc66UUTABEB AAG0JEJhcnQgVmFuIEFzc2NoZSA8YnZhbmFzc2NoZUBhY20ub3JnPokBOQQTAQIAIwUCVI67 igIbAwcLCQgHAwIBBhUIAgkKCwQWAgMBAh4BAheAAAoJEHFcPTXFzhAJ8QkH/1AdXblKL65M Y1Zk1bYKnkAb4a98LxCPm/pJBilvci6boefwlBDZ2NZuuYWYgyrehMB5H+q+Kq4P0IBbTqTa jTPAANn62A6jwJ0FnCn6YaM9TZQjM1F7LoDX3v+oAkaoXuq0dQ4hnxQNu792bi6QyVdZUvKc macVFVgfK9n04mL7RzjO3f+X4midKt/s+G+IPr4DGlrq+WH27eDbpUR3aYRk8EgbgGKvQFdD CEBFJi+5ZKOArmJVBSk21RHDpqyz6Vit3rjep7c1SN8s7NhVi9cjkKmMDM7KYhXkWc10lKx2 RTkFI30rkDm4U+JpdAd2+tP3tjGf9AyGGinpzE2XY1K5AQ0EVI67igEIAKiSyd0nECrgz+H5 PcFDGYQpGDMTl8MOPCKw/F3diXPuj2eql4xSbAdbUCJzk2ETif5s3twT2ER8cUTEVOaCEUY3 eOiaFgQ+nGLx4BXqqGewikPJCe+UBjFnH1m2/IFn4T9jPZkV8xlkKmDUqMK5EV9n3eQLkn5g lco+FepTtmbkSCCjd91EfThVbNYpVQ5ZjdBCXN66CKyJDMJ85HVr5rmXG/nqriTh6cv1l1Js T7AFvvPjUPknS6d+BETMhTkbGzoyS+sywEsQAgA+BMCxBH4LvUmHYhpS+W6CiZ3ZMxjO8Hgc ++w1mLeRUvda3i4/U8wDT3SWuHcB3DWlcppECLkAEQEAAYkBHwQYAQIACQUCVI67igIbDAAK CRBxXD01xc4QCZ4dB/0QrnEasxjM0PGeXK5hcZMT9Eo998alUfn5XU0RQDYdwp6/kMEXMdmT oH0F0xB3SQ8WVSXA9rrc4EBvZruWQ+5/zjVrhhfUAx12CzL4oQ9Ro2k45daYaonKTANYG22y //x8dLe2Fv1By4SKGhmzwH87uXxbTJAUxiWIi1np0z3/RDnoVyfmfbbL1DY7zf2hYXLLzsJR mSsED/1nlJ9Oq5fALdNEPgDyPUerqHxcmIub+pF0AzJoYHK5punqpqfGmqPbjxrJLPJfHVKy goMj5DlBMoYqEgpbwdUYkH6QdizJJCur4icy8GUNbisFYABeoJ91pnD4IGei3MTdvINSZI5e Message-ID: <7bcf45da-233b-0c38-b93a-99d205603e63@acm.org> Date: Wed, 22 Jul 2020 08:06:22 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-07-22 05:46, Martin K. Petersen wrote: > I am also not sold on the whole "bus" thing. How about implementing HPB as a kernel module that calls the functions in the UFS core directly, or in other words, get rid completely of the new ufsf_bus introduced by this patch? Thanks, Bart.