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 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 C283EC433E0 for ; Thu, 28 May 2020 20:02:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9A5092073B for ; Thu, 28 May 2020 20:02:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590696126; bh=aVYxP7+2RyedpkJ1nyED5/t7IMRyTZLYOpD/3LzmIQ4=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=qEBbbW7jVhJU5GKCPDAp9V6d42wMjIUvXHeku2dlP5HIanxpYdZyrwwe+O8nbJDgZ c9h0rBWou+vwB/NcZ9LTmf4Hx5UlWo9h25ShBSI7JJCCn+57jGBYR0BsRo/o4TPDXh 1TJ8K/mbMOTqJSQ6NnZUUSMOj8KV01lafFjpfRGk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406860AbgE1UCF (ORCPT ); Thu, 28 May 2020 16:02:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2406768AbgE1UCD (ORCPT ); Thu, 28 May 2020 16:02:03 -0400 Received: from mail-lj1-x244.google.com (mail-lj1-x244.google.com [IPv6:2a00:1450:4864:20::244]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5AA6C08C5C6 for ; Thu, 28 May 2020 13:02:02 -0700 (PDT) Received: by mail-lj1-x244.google.com with SMTP id o9so3311551ljj.6 for ; Thu, 28 May 2020 13:02:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ZGVDWib6rFI6u2cHNuBS7q44AMVUuGy+tY1n2uOTWt4=; b=alKIs44dXi9rsQbYsZDyQcre3mM659EE40dpxqjve1g6kexznQ9xXZerJ7HdKI/Tqr QqO5aRe6isuMMCyk4BWaWjTJY/BGoMMgHptuhk6mTO9gVVxK82kSqYr62iC9vAHZZyKQ d+hDOFIa4UloPWuFSrvuOA1thoGC52dN+XEJA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=ZGVDWib6rFI6u2cHNuBS7q44AMVUuGy+tY1n2uOTWt4=; b=aZsRaBURk45YVzEtgCmzSHZElBGfq5j7SdFE1CXsgn++F71SNKedVifx/ww59PwkYR 79LSKwmmv1JRTkvtM5zCMsxGQ8VolOADD9+B5qrqFtEcXpXdDP3Fdy0ii9j0iqvyGjPl eizTvHmvIri1HYIaDNrPwibalYIqVOz/6Xxwi+7gWjqfUOALcLeO2HW3AzaNnJOn2Ddi zAD+mbeFbe/9j1nlS4INb4SwZ/DHBhSMDuFdXLxq7pvwNPXx467FlAz/27EjJB4u4VQX VJY6wHGV1WBbOPNgStkquhuuVqtQjy3v1Jp6l2L07n+cE82Mvks+G3b4rU66LSusS9dE 79xw== X-Gm-Message-State: AOAM533+tjZPsmW2TqcgjzL0lgVE5vnkdrg6PMVXXv+Sw1pN7TTjC7x0 iJfu4NOdPr+KV6TBLDitqI9obz0sXMI= X-Google-Smtp-Source: ABdhPJxNHoszfLWCZ3WCfkuhCzuVKMFO78Elz5ZLqqrPpwImWyoRROaPCCXkATjoL2kIJyisIFUMoA== X-Received: by 2002:a2e:b0e6:: with SMTP id h6mr2107848ljl.178.1590696119463; Thu, 28 May 2020 13:01:59 -0700 (PDT) Received: from mail-lf1-f42.google.com (mail-lf1-f42.google.com. [209.85.167.42]) by smtp.gmail.com with ESMTPSA id q8sm1616968lfo.13.2020.05.28.13.01.57 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 May 2020 13:01:58 -0700 (PDT) Received: by mail-lf1-f42.google.com with SMTP id w15so17266381lfe.11 for ; Thu, 28 May 2020 13:01:57 -0700 (PDT) X-Received: by 2002:a19:6a0e:: with SMTP id u14mr2466293lfu.192.1590696117511; Thu, 28 May 2020 13:01:57 -0700 (PDT) MIME-Version: 1.0 References: <20200528065603.3596-1-penguin-kernel@I-love.SAKURA.ne.jp> <20200528110646.GC11286@linux-b0ei> In-Reply-To: From: Linus Torvalds Date: Thu, 28 May 2020 13:01:41 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2] twist: allow converting pr_devel()/pr_debug() into snprintf() To: Tetsuo Handa Cc: Petr Mladek , Andrew Morton , Linux Kernel Mailing List , Dmitry Vyukov , Ondrej Mosnacek , Sergey Senozhatsky , Steven Rostedt Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 28, 2020 at 12:50 PM Linus Torvalds wrote: > > I still don't understand why this small set of random options couldn't > just be kernel options that get set on the command line, and that have > independent and sane and explainable behavior? Why this odd mentality > of "syzkaller is special"? And just to clarify: the kernel option wouldn't be "syzcaller_twist" or something insane like that. It would be something like "kbd-disable-hotkeys" or whatever: actual real text that says what it does. Linus