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=-5.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 0E168C433FF for ; Thu, 1 Aug 2019 03:36:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D196220B7C for ; Thu, 1 Aug 2019 03:36:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="bUf4iEgL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727149AbfHADgD (ORCPT ); Wed, 31 Jul 2019 23:36:03 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:40160 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726118AbfHADgD (ORCPT ); Wed, 31 Jul 2019 23:36:03 -0400 Received: by mail-pl1-f193.google.com with SMTP id a93so31440105pla.7 for ; Wed, 31 Jul 2019 20:36:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=agxFsVFMrS4Uv8rkJ6+rXdsAOnVlA+SAVw+IjLOkFdU=; b=bUf4iEgLchiFXfhT1xmjReg6vuHTTMMnUTB4Y363ruCfk0w5x6lY6EiWkCv1iQTvfw X4YWjfgyPWpIFC9rKn++rTubN0mkZR7brGnZLLm2s+1NYTM/E4BE55nu+YQ6Ab3Ly9pQ WMCZRPQffPZuHyhc99gwM4wFkUavVG3TvyU5MrKjdLzbHQ/Z37n2YZ6adBpj7rYuzPl8 SfvxW646djXWNNfxHFQNbHRnxaWIVYa6SqB1oRmS2QW/XuJ26OUoYUZJRwo6TnaiSX4A W0pjKGYGTaGKFJXX6RZelAdlYFloa7BQiqsDoU84SG8vMZxY7+lXWmf1n8GmXk379TTf wX1Q== 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=agxFsVFMrS4Uv8rkJ6+rXdsAOnVlA+SAVw+IjLOkFdU=; b=aGicLZ50V5uZpSDXU6b6RXoUbjz6kHxsa9nc1dVicZIIigLG39DRjjIYmkqYI2XhrW GC7AmQFDr2gQUxt5N3dsEyFv21GDgeuG7dprwXic2ntWN+ndEXowZf2ja8xNBg4N7ui2 2ttT2SMGV2KJQ148DWS4qGdpbjDhPg0IHAsRhr4up71ugEFcNJ9LqfMuJS85OatZt7Ra btV/WHOGRusdJkgoXcCasUkDUaTsrJd8WUcQpdX/AAUm8ilvCERvCQLDkBFWOgST+S0i tkItxHeK1mLvT08kQzGFUXEWGxMr1syT1WuhO5E8/Xg844y6Ph7SxLEJYxwRZIRrpZhp 5WTA== X-Gm-Message-State: APjAAAXlFCXP5ad/siSwjR9e4juMzqyHTL2vhwnN+bOlmDruoc8TjczC QtSlNiJvYDHScZNSJFXNeDLJ7Q== X-Google-Smtp-Source: APXvYqyn64QqVAUXJUwPqvzYRKfETlhmOG6RXrqu4jKI3gLhnUT665IpkZH5AA2VrzxpqDptVQy8fA== X-Received: by 2002:a17:902:9f8e:: with SMTP id g14mr77875171plq.67.1564630562466; Wed, 31 Jul 2019 20:36:02 -0700 (PDT) Received: from localhost ([122.172.28.117]) by smtp.gmail.com with ESMTPSA id j15sm69478055pfr.146.2019.07.31.20.36.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 31 Jul 2019 20:36:01 -0700 (PDT) Date: Thu, 1 Aug 2019 09:05:59 +0530 From: Viresh Kumar To: Mark Rutland Cc: stable@vger.kernel.org, Julien Thierry , linux-arm-kernel@lists.infradead.org, Catalin Marinas , Marc Zyngier , Will Deacon , Russell King , Vincent Guittot , mark.brown@arm.com Subject: Re: [PATCH v4.4 V2 15/43] arm64: Move cpu_die_early to smp.c Message-ID: <20190801033559.23bovxwguppb7bbr@vireshk-i7> References: <20190731123532.GA39768@lakrids.cambridge.arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190731123532.GA39768@lakrids.cambridge.arm.com> User-Agent: NeoMutt/20180716-391-311a52 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On 31-07-19, 13:35, Mark Rutland wrote: > On Fri, Jul 12, 2019 at 10:58:03AM +0530, Viresh Kumar wrote: > > From: Suzuki K Poulose > > > > commit fce6361fe9b0caeba0c05b7d72ceda406f8780df upstream. > > > > This patch moves cpu_die_early to smp.c, where it fits better. > > No functional changes, except for adding the necessary checks > > for CONFIG_HOTPLUG_CPU. > > > > Cc: Mark Rutland > > Acked-by: Will Deacon > > Signed-off-by: Suzuki K Poulose > > Signed-off-by: Catalin Marinas > > [ Viresh: Resolved rebase conflict ] > > Signed-off-by: Viresh Kumar > > > +void cpu_die_early(void) > > > + asm( > > + "1: wfe\n" > > + " wfi\n" > > + " b 1b"); > > +} > > Rather than open-coding this loop differently from upstream and the > v4.9.y backport, please backport commit: > > c4bc34d20273db69 ("arm64: Add a helper for parking CPUs in a loop") > > ... as a prerequisite of this patch. Done, thanks. -- viresh