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=-5.3 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 1B8EEC433B4 for ; Thu, 8 Apr 2021 09:44:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D95D561208 for ; Thu, 8 Apr 2021 09:44:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231336AbhDHJpD (ORCPT ); Thu, 8 Apr 2021 05:45:03 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:16044 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231322AbhDHJpC (ORCPT ); Thu, 8 Apr 2021 05:45:02 -0400 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4FGGWH49tdzPnsX; Thu, 8 Apr 2021 17:42:03 +0800 (CST) Received: from [10.67.102.118] (10.67.102.118) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.498.0; Thu, 8 Apr 2021 17:44:40 +0800 Subject: Re: [PATCH 1/2] USB:ehci:Add a whitelist for EHCI controllers To: Oliver Neukum , , , , CC: , , , References: <1617873073-37371-1-git-send-email-liulongfang@huawei.com> <1617873073-37371-2-git-send-email-liulongfang@huawei.com> From: liulongfang Message-ID: <0d5963d0-9e25-5411-67df-146bf924fc17@huawei.com> Date: Thu, 8 Apr 2021 17:44:39 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.67.102.118] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On 2021/4/8 17:33, Oliver Neukum wrote: > Am Donnerstag, den 08.04.2021, 17:11 +0800 schrieb Longfang Liu: >> Some types of EHCI controllers do not have SBRN registers. >> By comparing the white list, the operation of reading the SBRN >> registers is skipped. >> >> Subsequent EHCI controller types without SBRN registers can be >> directly added to the white list. > > Hi, > > shouldn't this set a flag for a missing functionality? > > Regards > Oliver > > > . > This flag is ehci->sbrn. Thanks, Longfang