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=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 58C71C433DB for ; Mon, 1 Mar 2021 08:27:40 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E5C3364D9F for ; Mon, 1 Mar 2021 08:27:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E5C3364D9F Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.91346.172617 (Exim 4.92) (envelope-from ) id 1lGdtk-0000sv-23; Mon, 01 Mar 2021 08:27:24 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 91346.172617; Mon, 01 Mar 2021 08:27:24 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lGdtj-0000so-VC; Mon, 01 Mar 2021 08:27:23 +0000 Received: by outflank-mailman (input) for mailman id 91346; Mon, 01 Mar 2021 08:27:23 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lGdtj-0000sj-14 for xen-devel@lists.xenproject.org; Mon, 01 Mar 2021 08:27:23 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id c046ffd3-3237-4b60-a3e7-de7c05e65e54; Mon, 01 Mar 2021 08:27:22 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 661C7AA4F; Mon, 1 Mar 2021 08:27:21 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: c046ffd3-3237-4b60-a3e7-de7c05e65e54 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1614587241; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=dNADWKwQDdlSEZj5GL9Dlcu8bOaDjERraCVrAxpqxjA=; b=ufw7JE5ieSHRZ2kmX0atf8fpV1NsJ+MV345ux35KMVqr183mYu2H/8iNjRog3AaHnHpmrI XJWxVSCsYvPcZHVDyS6iYmfUCcuxc8a7J5OFnXk35H28i8FkVMnVo8+BEHPYCdJoZM2SSc Jrr6WFR1KEHycU+jwSk25929NX4OdFU= To: "xen-devel@lists.xenproject.org" Cc: Connor Davis , Andrew Cooper , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , George Dunlap , Dario Faggioli , Ian Jackson From: Jan Beulich Subject: [PATCH 0/2][4.15?] fix build when NR_CPUS == 1 Message-ID: Date: Mon, 1 Mar 2021 09:27:20 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit While we've long done away with CONFIG_SMP, we still allow CONFIG_NR_CPUS to be set to 1. Hence at least randconfig builds may fail, and the first of the two issues addressed was actually observed in the RISC-V bring-up work. I didn't check whether Arm would also have issues like these. 1: sched: fix build when NR_CPUS == 1 2: x86: fix build when NR_CPUS == 1 Jan