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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 D7087C282C4 for ; Wed, 13 Feb 2019 00:48:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 98F46218D3 for ; Wed, 13 Feb 2019 00:48:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="LNQC9hIx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732574AbfBMAsJ (ORCPT ); Tue, 12 Feb 2019 19:48:09 -0500 Received: from mail-pl1-f195.google.com ([209.85.214.195]:44276 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727871AbfBMAsI (ORCPT ); Tue, 12 Feb 2019 19:48:08 -0500 Received: by mail-pl1-f195.google.com with SMTP id p4so288098plq.11 for ; Tue, 12 Feb 2019 16:48:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=54iEXpIIINx6ekpNfXFod7edpsR3F9pxXBIcNtz4yC0=; b=LNQC9hIxf14HO75u+gwTUs4DSFQAKw+fUBKBOs47JEFYx1i0uPhh3plyWfCuqdqWeJ +zOg+CuxChA3bRkrYZwu7sXh7ZY1PmVKIh7Gov6BTxIukVJgSHcMuv3QuNsfFvbrcYvP gw/lHa0HklwltBAckoG8UdmB7bJg8Fe6+6rBIZ+X5eIEQ0lEzAUNPozHnhAzIxfXqDJ7 Tzf4TdiG1baUO7b0QFvUZFFpjL36JkIUjfL8j0IxyGeR5C0pbELbgYH9i0rckacj17Np nbluc/Usuy30cJWhyk+ffEPKbCZReC4LsLzCvNRsvgV6yVDU/onz9ytINZi9XRDxiTmE zNMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=54iEXpIIINx6ekpNfXFod7edpsR3F9pxXBIcNtz4yC0=; b=LxTqQ6Hxv3pamWF9cTxshO+nx54doEgFV0VrmPkY+/0SnWRR+eCxDQImN35O3GPaga nqAScjera67K2yUhxY4/fIrIaAGs70tKWRiGK/XyCDn4zJOaE1da+rrgs1JFlThe9YUG nS5eEw03xnPUPSFnWGSiIkbR/4p7QkcU9RdCQOLWfyOwl9bE9QRK2GGoBYZ7FYWwS5es iyNZs2uFs5T+fwKNpSt/REd8xjR2liUc03913MDqSwcI+l7fWhgZ4b82RAN8DR+4TqlN 97T3h04/k+zN3JyxhAGdrXabsP0MTtEd8oIjboPPEE/aUcmFjslnIP+cM9rNbcRaE/B3 ksmA== X-Gm-Message-State: AHQUAua3W8X0FQfkbBrXWPmBNx+YRGNHnoCfgHosD9gElOMdJoZ16q35 YAE0WwwEfFLF7+FHBRg8kKo= X-Google-Smtp-Source: AHgI3IbADUqCB731eEJXxcYiyYM0o2Dk96Ao672x5A6l/VnU1UqPLatIhdya9+fGWFXUMWZS1mlk2g== X-Received: by 2002:a17:902:b402:: with SMTP id x2mr6814216plr.53.1550018888233; Tue, 12 Feb 2019 16:48:08 -0800 (PST) Received: from localhost ([39.7.15.189]) by smtp.gmail.com with ESMTPSA id o25sm20786047pfk.185.2019.02.12.16.48.06 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 12 Feb 2019 16:48:07 -0800 (PST) Date: Wed, 13 Feb 2019 09:48:04 +0900 From: Sergey Senozhatsky To: Xiang Xiao Cc: pmladek@suse.com, sergey.senozhatsky@gmail.com, rostedt@goodmis.org, linux-kernel@vger.kernel.org, Xiang Xiao Subject: Re: [PATCH] printk: add KERN_NOTIME to skip the timestamp Message-ID: <20190213004804.GA2992@jagdpanzerIV> References: <1549995065-27597-1-git-send-email-xiaoxiang@xiaomi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1549995065-27597-1-git-send-email-xiaoxiang@xiaomi.com> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (02/13/19 02:11), Xiang Xiao wrote: > > Because log may already add the timestamp sometime > We have module_param(printk_time) which enables/disables timestamps. And a .config option. And a kernel boot param. Why would you want KERN_NOTIME? -ss