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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY 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 465D5C43331 for ; Thu, 2 Apr 2020 02:07:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 12236206F8 for ; Thu, 2 Apr 2020 02:07:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="pYbVzvk+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387439AbgDBCHU (ORCPT ); Wed, 1 Apr 2020 22:07:20 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:36198 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732462AbgDBCHU (ORCPT ); Wed, 1 Apr 2020 22:07:20 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 03223boR185375; Thu, 2 Apr 2020 02:07:03 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=to : cc : subject : from : references : date : in-reply-to : message-id : mime-version : content-type; s=corp-2020-01-29; bh=WZXyOYO9D/+sJyG8OFa+UWGWzbiIHW42gHIui+JUTGc=; b=pYbVzvk+B07jXcf/KJtmehgVC8/FV3kqEXpp+tEnQpfZmPMfMYyuIUaoQ3128K56Drmq 3YmpiDugBh4BS9Hp7Zkt6wp+TIH56+LvTDlnkN1TgLEbSHYTQC9iPJtgCmyzFXAKwIHZ BZP3a4AqTVc68eb8LcZhPMwUFXFCBbFNbRJY7ZWedYKk5tU2uk5782u93pEpOmECxR2Z v5fSsZBjBSGxAhTpnl1SGcYTCLyrmjiijbiHUe6z7N6P0JrXkx3Atkvu2R7wht4IQVhE wbCOWe2T7zH9T0a3GmtpAHJmj51Fl5Vh5OGNz7coiu1EN5UY/OaWpJW/Un5S0WA5MHJk Qg== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by aserp2120.oracle.com with ESMTP id 303yunb9xk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 02 Apr 2020 02:07:02 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 03222831098458; Thu, 2 Apr 2020 02:07:02 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3020.oracle.com with ESMTP id 302ga1h9pk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 02 Apr 2020 02:07:02 +0000 Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 03226xks013183; Thu, 2 Apr 2020 02:06:59 GMT Received: from ca-mkp.ca.oracle.com (/10.159.214.123) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 01 Apr 2020 19:06:58 -0700 To: Jason Yan Cc: John Garry , , , , "Ewan D . Milne" , Christoph Hellwig , Hannes Reinecke , "Bart Van Assche" , Ming Lei Subject: Re: [PATCH] scsi: remove show_use_blk_mq() From: "Martin K. Petersen" Organization: Oracle Corporation References: <20200401134049.9352-1-yanaijie@huawei.com> <57f6fde1-fe0c-68e7-f476-35d92902c6b1@huawei.com> Date: Wed, 01 Apr 2020 22:06:56 -0400 In-Reply-To: (Jason Yan's message of "Thu, 2 Apr 2020 09:19:55 +0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.92 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9578 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 mlxlogscore=999 bulkscore=0 mlxscore=0 spamscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004020016 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9578 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 lowpriorityscore=0 malwarescore=0 adultscore=0 priorityscore=1501 mlxlogscore=999 bulkscore=0 suspectscore=0 mlxscore=0 spamscore=0 impostorscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004020016 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Jason, > Maybe. But removing a module param may break the user space too. It won't break loading the module. The intent is to leave the sysfs parameter in place for a while to make sure nobody depends on it. -- Martin K. Petersen Oracle Linux Engineering