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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93B36C636D3 for ; Mon, 30 Jan 2023 08:11:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235849AbjA3ILW (ORCPT ); Mon, 30 Jan 2023 03:11:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235675AbjA3ILR (ORCPT ); Mon, 30 Jan 2023 03:11:17 -0500 Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 27DD07ECB for ; Mon, 30 Jan 2023 00:10:51 -0800 (PST) Received: from compute6.internal (compute6.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id B61665C0446; Mon, 30 Jan 2023 03:08:30 -0500 (EST) Received: from imap51 ([10.202.2.101]) by compute6.internal (MEProxy); Mon, 30 Jan 2023 03:08:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arndb.de; h=cc :cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; t=1675066110; x= 1675152510; bh=QbO6RgTyZCH0F7lsFXKAl1hu80urlER2Gg9x2aAGIYk=; b=q vQnZ1x2L0GPuiM9klXMW/u3+DUcOQpuFvszXRiJBwHIxNbzX9HtPMU2CXQMR0I2E ehSpg3cPEFwDtTmIpwSwOjI8N3N8QCiikF3LhkVTxYWz7AmFbqUfkyifV2YGQAAP uy5pfmxSTmrE4N17BAWA0ek7uBUOe73pB59xyzEahpSOwWrjfv+3Qz8nJWY5B9RC 0Jdm65MGcVOLWMORTWVZogLMFij5LpsagfQ1CkzzkV9GzJHSy2ZHaUUW40n8dyQJ nADlU2QCxf6oHyXKBfEWtGq05cvy0AssjQkelzN5uW999+0jha6j0cLs1LqKFFw2 8A2fQw9Jbo70BbVseY+aQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t=1675066110; x= 1675152510; bh=QbO6RgTyZCH0F7lsFXKAl1hu80urlER2Gg9x2aAGIYk=; b=a HWzctS41U+v6uQ6New/Bc+suvJoC649V5JKYq4Vp70Xd1UAYi4K/BsyPbDOFRPra nIjyPFGW3v2N78umqXr/vd6ufOptbEa7FTZ7QOH1VKaD7AtDdbXdYV7h43g73wGv Ks5iLw0Ke93tP9YAAx9BV9TCl7tMqxTIqEs2S+S5vt2MdjT03O7q6w6kvcAhdgkU tj64TSIj4h44vYRL3g6brmtxFXeyEcyXLvgNgdsXehYvRnIJEUHs05OFWewLFsEG qk4ZqWSRR+lJ2WK2qQNQ8+bfnB37sZ6QkC/b8Ui8GRgkUG/PiGLeBpWAvIusf146 8LIAXcpxK02yFqy1eNTHg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrudefuddguddukecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefofgggkfgjfhffhffvvefutgfgsehtqhertderreejnecuhfhrohhmpedf tehrnhguuceuvghrghhmrghnnhdfuceorghrnhgusegrrhhnuggsrdguvgeqnecuggftrf grthhtvghrnhepgeefjeehvdelvdffieejieejiedvvdfhleeivdelveehjeelteegudek tdfgjeevnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomh eprghrnhgusegrrhhnuggsrdguvg X-ME-Proxy: Feedback-ID: i56a14606:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 57789B60086; Mon, 30 Jan 2023 03:08:29 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.9.0-alpha0-85-gd6d859e0cf-fm-20230116.001-gd6d859e0 Mime-Version: 1.0 Message-Id: <6d1f3696-c94a-44ac-996c-83233f694cc0@app.fastmail.com> In-Reply-To: <20230129160039.1598347-1-j.neuschaefer@gmx.net> References: <20230129160039.1598347-1-j.neuschaefer@gmx.net> Date: Mon, 30 Jan 2023 09:08:10 +0100 From: "Arnd Bergmann" To: =?UTF-8?Q?Jonathan_Neusch=C3=A4fer?= , linux-arm-kernel@lists.infradead.org Cc: "Russell King" , "William Zhang" , "Michael Walle" , "Florian Fainelli" , "Tony Lindgren" , "Kavyasree Kotagiri" , "Ard Biesheuvel" , linux-kernel@vger.kernel.org Subject: Re: [PATCH] ARM: Allow DEBUG_UNCOMPRESS on ARCH_MULTIPLATFORM Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jan 29, 2023, at 17:00, Jonathan Neusch=C3=A4fer wrote: > A kernel with DEBUG_UNCOMPRESS=3Dy will only work on one platform, but > that is already the case with DEBUG_LL=3Dy (and documented in its help > text), and DEBUG_UNCOMPRESS depends on DEBUG_LL. Therefore, I don't > think users need to be prevented from enabling DEBUG_UNCOMPRESS on > ARCH_MULTIPLATFORM kernels. > > Signed-off-by: Jonathan Neusch=C3=A4fer I think we should instead change the help text for CONFIG_DEBUG_LL. There is a very significant difference between the requirements of DEBUG_LL compared to DEBUG_UNCOMPRESS. The former only provides the platform specific functions but does not call them unless a user explicitly passes the "earlyprintk" command line argument or adds explicit function calls to printascii(), while the latter makes the kernel immediately unbootable. 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