From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 01 Dec 2015 16:32:06 +0100 (CET) Received: from mail-qk0-f170.google.com ([209.85.220.170]:34166 "EHLO mail-qk0-f170.google.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27008128AbbLAPcEevxGK (ORCPT ); Tue, 1 Dec 2015 16:32:04 +0100 Received: by qkfo3 with SMTP id o3so3790780qkf.1; Tue, 01 Dec 2015 07:31:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=g11RDYfJ/UrANY0wLpf1vq4Jjly9HX8uwUBlII6IJWs=; b=EhAV55ZkW6GJFAFhuftZjC130Pzyqz6qjQbwJavZdZi9Mj0WM8TnBqNIGmVk0lmgza i8yVaX4G7Jn2M6EqZPfwsPn+I6vuYOp11p33+8UpVVwMTxzOHOlaeIkvQqLxmgDfBF1O IszPEO2DzaYelIFGuZFcNrf8X6lFLMmz9wcfh818Ca05PU/NpcCzsucrlNJQg4N2Voyi SUIqOjl1wSaeDY7JFvlWlgvz1IZ/pNEVgTxxv540mlXSrKanZIjcaKW17ls/dnAAbPK5 eWYJ7ZsT6O8y6hfV6hdxNagfZd041RnWqmgmcF4T3OfEmEs4gCxUU/J5a0A/Mu6P7l4M hKuQ== X-Received: by 10.55.204.213 with SMTP id n82mr83458677qkl.36.1448983918201; Tue, 01 Dec 2015 07:31:58 -0800 (PST) Received: from bigtime.twiddle.net (50-194-63-110-static.hfc.comcastbusiness.net. [50.194.63.110]) by smtp.googlemail.com with ESMTPSA id b22sm17213252qge.23.2015.12.01.07.31.55 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 01 Dec 2015 07:31:57 -0800 (PST) Subject: Re: no-op delay loops To: Rasmus Villemoes , Arnd Bergmann References: <87si3rbz6p.fsf@rasmusvillemoes.dk> <3228673.rOyW85ILiP@wuerfel> <874mg3b2h5.fsf@rasmusvillemoes.dk> Cc: Ralf Baechle , linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven , "Rafael J. Wysocki" From: Richard Henderson Message-ID: <565DBD69.7000701@twiddle.net> Date: Tue, 1 Dec 2015 07:31:53 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <874mg3b2h5.fsf@rasmusvillemoes.dk> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 50263 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: rth@twiddle.net Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On 11/30/2015 01:29 PM, Rasmus Villemoes wrote: > ./arch/alpha/boot/main.c:187:1-4: no-op delay loop Not sure why this is there. The runkernel function that preceeds it cannot return, having performed an indirect branch (not a call) to the kernel start. I see no reason to actually change anything, unless someone insists that this be remove to avoid future similar analysis. r~