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=-10.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 65774C33CB1 for ; Tue, 14 Jan 2020 09:20:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3F96B2084D for ; Tue, 14 Jan 2020 09:20:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728896AbgANJUZ (ORCPT ); Tue, 14 Jan 2020 04:20:25 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:8715 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725820AbgANJUZ (ORCPT ); Tue, 14 Jan 2020 04:20:25 -0500 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id D0652962A9F513952354; Tue, 14 Jan 2020 17:20:22 +0800 (CST) Received: from [127.0.0.1] (10.133.217.236) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.439.0; Tue, 14 Jan 2020 17:20:15 +0800 Subject: Re: [PATCH] x86/ftrace: use ftrace_write to simplify code To: Peter Zijlstra , CC: , , , , , References: <20200114015217.9246-1-cj.chengjian@huawei.com> <20200114081636.GH2827@hirez.programming.kicks-ass.net> From: "chengjian (D)" Message-ID: <8435b848-f638-978c-bbd5-459657c4b34e@huawei.com> Date: Tue, 14 Jan 2020 17:20:13 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 MIME-Version: 1.0 In-Reply-To: <20200114081636.GH2827@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset="gbk"; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Originating-IP: [10.133.217.236] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/1/14 16:16, Peter Zijlstra wrote: > On Tue, Jan 14, 2020 at 01:52:17AM +0000, Cheng Jian wrote: >> ftrace_write() can be used in ftrace_modify_code_direct(), >> that make the code more brief. >> >> Signed-off-by: Cheng Jian > None of the code you're patching still exists. Please see tip/master. > > . I find these patches in TIP. My patch may not be necessary. https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=768ae4406a5cab7e8702550f2446dbeb377b798d Thank you, Peter. -- Cheng Jian