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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EF754C43458 for ; Tue, 14 Jul 2026 21:51:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=zN7E98zM8jVAhgF74XVOV7g2x2zGcHzUWYai2sRHvlE=; b=DM8srvpdYcJs4palM+iChdKWOe 9TEdxCdEyBrMh7x9R/MA/IjsNDiNHOUxNf2jDSn0ef9Ewn1OxJqgtbT9zNmuPunJO6Gss6ElhfVLR 1rCthgvhWxW5M02QnTGlrxsAYHID1pHmRPWrYyyjXV7zSRKG5pFHxP5A2DpKKWJfWtz7ESfNscvWT 8Bcz1Hd3Rs9yoURnMLOohEacNi+CW/2MaCukppOQaDPOe60Me4nZqapcVBSQXe+1qzk06CtqOV4Yx Vnu5+2FcM5GDIQuju/miQy3zUWur9kag00Pm+8WtztY4uU6TBSkUN8tB3EqWaPkItk/def0rW/yx+ Vts0dejQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wjl2S-0000000DNJI-1OJ4; Tue, 14 Jul 2026 21:51:40 +0000 Received: from smtprelay0017.hostedemail.com ([216.40.44.17] helo=relay.hostedemail.com) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wjl2P-0000000DNIj-0jfi; Tue, 14 Jul 2026 21:51:38 +0000 Received: from omf01.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 892F3804B0; Tue, 14 Jul 2026 21:51:31 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf01.hostedemail.com (Postfix) with ESMTPA id A1A506000C; Tue, 14 Jul 2026 21:51:27 +0000 (UTC) Date: Tue, 14 Jul 2026 17:51:31 -0400 From: Steven Rostedt To: Andrew Murray Cc: Petr Mladek , John Ogness , Sergey Senozhatsky , Jonathan Corbet , Shuah Khan , Russell King , Florian Fainelli , Broadcom internal kernel review list , Ray Jui , Scott Branden , Andrew Morton , Greg Kroah-Hartman , Sebastian Andrzej Siewior , Clark Williams , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-rt-devel@lists.linux.dev Subject: Re: [PATCH v3 6/6] Documentation/kernel-parameters: add/update printk_delay/boot_delay Message-ID: <20260714175131.1edfc880@gandalf.local.home> In-Reply-To: <20260712-printkcleanup-v3-6-574547b8f71b@thegoodpenguin.co.uk> References: <20260712-printkcleanup-v3-0-574547b8f71b@thegoodpenguin.co.uk> <20260712-printkcleanup-v3-6-574547b8f71b@thegoodpenguin.co.uk> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: 7zy31kt8rbwtcxpe5riua91mpmyq316o X-Rspamd-Server: rspamout02 X-Rspamd-Queue-Id: A1A506000C X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX18CNmWd2YhLXQvEn1XaHEtwP0wzcKYWfXE= X-HE-Tag: 1784065887-653010 X-HE-Meta: U2FsdGVkX18t0ruRrD4DDDo0OZ1UA5N76Mf6Lk9oRwOylkSPIbsZWq73qoTz/bkApRB0oxXicLVMDXuK/ZC8dSH77knGTVCpJAZxUxtyvEH/UImu4r3aD8mxRcA5JsRDxTK2N0nO/Q3xgVVpTuV+t1StncIDm3pwv3kYfoeMs8Jg0EJem2UEWPdzi9oJndMRunIH/kS0lPHLDnjK39PoWXSlEiQYG7RJMAz69lnU0kl6Sb7Keuvboe2QUYC4iTAc0pSUneUfPyg9zXOkZ7TN5xPibPrdNOnPExVT/RiRYqicpYieJo2Af3W1FtfKy6YFNnYkT1kxOd8XliV8F5iK8P87+FxnmpA29LqdXki/3Q9gI9m/b6mxPiufh8MKnRsU X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260714_145137_280696_6325A386 X-CRM114-Status: GOOD ( 15.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sun, 12 Jul 2026 11:20:37 +0100 Andrew Murray wrote: > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 2884103b93bca7b76cd3a93946276074cf62d0a1..1118feda87b1b04543b1da0bd52c090b1fddaeac 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -650,11 +650,19 @@ Kernel parameters > See Documentation/block/cmdline-partition.rst > > boot_delay= [KNL,EARLY] > - Milliseconds to delay each printk during boot. > - Only works if GENERIC_CALIBRATE_DELAY is enabled, > - and you may also have to specify "lpj=". Boot_delay > - values larger than 10 seconds (10000) are assumed > - erroneous and ignored. > + Milliseconds to delay each printk during and post boot. > + Boot time delays only work if GENERIC_CALIBRATE_DELAY > + is enabled. > + > + Once booted the delay can be removed or adjusted via > + the printk_delay sysctl. > + > + Please note that you may also have to specify "lpj=". > + Boot_delay values larger than 10 seconds (10000) are > + assumed erroneous and ignored. > + > + This will soon be deprecated, please use printk_delay > + instead. > Format: integer > > bootconfig [KNL,EARLY] > @@ -5468,6 +5476,19 @@ Kernel parameters > printk.time= Show timing data prefixed to each printk message line > Format: (1/Y/y=enable, 0/N/n=disable) > > + printk_delay= [KNL,EARLY] > + Milliseconds to delay each printk during and post boot. > + Boot time delays only work if GENERIC_CALIBRATE_DELAY > + is enabled. > + > + Once booted the delay can be removed or adjusted via > + the printk_delay sysctl. > + > + Please note that you may also have to specify "lpj=". > + printk_delay values larger than 10 seconds (10000) are > + assumed erroneous and ignored. > + Format: integer > + The two parameters descriptions are identical. They should show something different. Is it just that the "boot_delay" name is getting deprecated? -- Steve