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=-2.4 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,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 C1763C282DD for ; Fri, 10 Jan 2020 21:49:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9602820673 for ; Fri, 10 Jan 2020 21:49:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=arista.com header.i=@arista.com header.b="fKt6naZQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727170AbgAJVtO (ORCPT ); Fri, 10 Jan 2020 16:49:14 -0500 Received: from mail-pj1-f43.google.com ([209.85.216.43]:36274 "EHLO mail-pj1-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727090AbgAJVtN (ORCPT ); Fri, 10 Jan 2020 16:49:13 -0500 Received: by mail-pj1-f43.google.com with SMTP id n59so1545783pjb.1 for ; Fri, 10 Jan 2020 13:49:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arista.com; s=googlenew; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=EotSuVC8x//6WTz5AWaS7rsTrdlhebSai/ftb1+E4dE=; b=fKt6naZQW/i9MFnHyjX9n+cMX+BtPuQ15JIY49Lo5XG3ArYZnRKVndhMOvZUsPFsL7 oW4ZIWE1UL25OmBc2pVmcVbHDSHyOLkloQGKjEDdAvaFQ5Ky/88HFbJQkjZXbvUKH62z Qjk/RpYqzaPVVqgVFQG4MIv9vC6BK0Q/Px/qla8lfUTsYQult063a0PPGT8DRuCxRODV dDh5qAt3YEHWQU1N6UsL2gyR0eu2K1BubJzcDd1XvHeUwiWOMh/ID34i44htTR3J/o0b FL9RHX7aEGle2QbQStPWiqBXXVUVzeQ4qg87Mk2Hi1S0elpTa/bAbEXpw4ezcQ85S3F1 4wKQ== 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:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=EotSuVC8x//6WTz5AWaS7rsTrdlhebSai/ftb1+E4dE=; b=DuctgaEXFDNukDbpFB5IjsBgybZZ/JQYPh2/G+iPLcue08nB2cHqlGPV/3OGGkDUs+ MO7lvD2/W8MlDNM9IpXkHxHdWOn35fekZ4bxvc8t9mYNodwQM5TUq+DOQBOUlPmfQSsC R18fyva/rTLqDwMwbMaOgYvGK34+PlNJB0a9c3iKz74qaVbtQL+9mig3mH7LVQ6NhUuX 4ldt8WP8fzsST+Mb+gP6aH2+jSgO0S0BN+Z++QA/roie6I1PFMp2dYYY2LnYlWc2fqrM U02ZuHCcrSbZ/0TdrZRWUAzf9zlWipevGaamSGMSn03bfnHtZmptPaahflbOk+mG+2eb 02oA== X-Gm-Message-State: APjAAAVrqVziCEtxPDHehKD/V2T6gMwCrJvnqMYi2FgZB5mVFCTCH3kp OHHtZBi94xT++nysQliRgJ+tju/J2gE= X-Google-Smtp-Source: APXvYqwRu265Y3X0hs9bzTfjAnTlPhZVFYgk8do4sgggN/Ov+FCjgdLdT0ymGoEG3OhqL/pp3neC+Q== X-Received: by 2002:a17:902:8642:: with SMTP id y2mr6720859plt.306.1578692952197; Fri, 10 Jan 2020 13:49:12 -0800 (PST) Received: from [10.83.36.153] ([217.173.96.166]) by smtp.gmail.com with ESMTPSA id 3sm4128337pfi.13.2020.01.10.13.49.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 10 Jan 2020 13:49:11 -0800 (PST) Subject: Re: [PATCH-next 2/3] sysctl/sysrq: Remove __sysrq_enabled copy To: Iurii Zaikin Cc: Linux Kernel Mailing List , Dmitry Safonov <0x7f454c46@gmail.com>, Greg Kroah-Hartman , Jiri Slaby , Vasiliy Khoruzhick , linux-serial@vger.kernel.org, Luis Chamberlain , Kees Cook , Linus FS Devel Mailing List References: <20200109215444.95995-1-dima@arista.com> <20200109215444.95995-3-dima@arista.com> From: Dmitry Safonov Message-ID: Date: Fri, 10 Jan 2020 21:48:57 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 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 Hi Iurii, On 1/10/20 3:19 AM, Iurii Zaikin wrote: > Off topic: I wonder if Magic Sysrq could be extended with reasonable > effort to be triggered by a sequence of keystrokes which would be less > likely to be generated by a noisy serial. That's what I do in 3/3 patch from the series: https://lkml.kernel.org/r/20200109215444.95995-4-dima@arista.com Or do you mean something else? Thanks, Dmitry