[v2,21/24] sched/idle: Make sure weak version of arch_cpu_idle_dead() doesn't return
Message ID | cf5ad95eef50f7704bb30e7770c59bfe23372af7.1676358308.git.jpoimboe@kernel.org |
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State | New |
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[2620:137:e000::1:20]) by mx.google.com with ESMTP id fh3-20020a1709073a8300b0087bd6ca2cb2si15975879ejc.372.2023.02.13.23.11.26; Mon, 13 Feb 2023 23:11:49 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=UTx7NvZZ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232147AbjBNHJu (ORCPT <rfc822;tebrre53rla2o@gmail.com> + 99 others); Tue, 14 Feb 2023 02:09:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231840AbjBNHIF (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Tue, 14 Feb 2023 02:08:05 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 121EB1E2A3; Mon, 13 Feb 2023 23:07:30 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id C54F2B81C09; Tue, 14 Feb 2023 07:07:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E12EEC433AF; Tue, 14 Feb 2023 07:07:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1676358447; bh=QgOyKDCiySM7B7nEI/CeCUdB9V4cgp0r+x00hCG0bAs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UTx7NvZZYy13iCrSLJI4/e/stpitBs/+hLagiJy96BUaFJ5MujJ4J6mQCivTly9aU XuFeDhwKqeLcYDae4jWwak72Pf2i7BG8JbrSVF8YoiubDwMTmJDUGjeFBflHfWBgnO 6L32o4C5b8JR78z11RsYWTZBwUIC5CFlMvD5lE2d/1HUy8GsTmXNJ/g9JeZ6adGDGu SpBAhjB5JhWlZVQ+YSlBEcxV3F7h5KixnUuQi9X4K6aJAaVEr7xJRMQnGQfMIMUBD9 C+jRTbtnaIlGZMy31m/B6Ep+S7vN+3+3dGihQRhahxNc49RXvYQGaQk8wYeSksBU4B Yd1Op3p5cd5dg== From: Josh Poimboeuf <jpoimboe@kernel.org> To: linux-kernel@vger.kernel.org Cc: jgross@suse.com, richard.henderson@linaro.org, ink@jurassic.park.msu.ru, mattst88@gmail.com, linux-alpha@vger.kernel.org, linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, will@kernel.org, guoren@kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, chenhuacai@kernel.org, kernel@xen0n.name, loongarch@lists.linux.dev, f.fainelli@gmail.com, bcm-kernel-feedback-list@broadcom.com, tsbogend@alpha.franken.de, linux-mips@vger.kernel.org, jiaxun.yang@flygoat.com, mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, linuxppc-dev@lists.ozlabs.org, ysato@users.sourceforge.jp, dalias@libc.org, linux-sh@vger.kernel.org, davem@davemloft.net, sparclinux@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, chris@zankel.net, jcmvbkbc@gmail.com, linux-xtensa@linux-xtensa.org, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, paulmck@kernel.org Subject: [PATCH v2 21/24] sched/idle: Make sure weak version of arch_cpu_idle_dead() doesn't return Date: Mon, 13 Feb 2023 23:05:55 -0800 Message-Id: <cf5ad95eef50f7704bb30e7770c59bfe23372af7.1676358308.git.jpoimboe@kernel.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <cover.1676358308.git.jpoimboe@kernel.org> References: <cover.1676358308.git.jpoimboe@kernel.org> MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1757789510958156174?= X-GMAIL-MSGID: =?utf-8?q?1757789510958156174?= |
Series |
cpu,sched: Mark arch_cpu_idle_dead() __noreturn
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Commit Message
Josh Poimboeuf
Feb. 14, 2023, 7:05 a.m. UTC
arch_cpu_idle_dead() should never return. Make it so.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
---
kernel/sched/idle.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c index e9ef66be2870..56e152f06d0f 100644 --- a/kernel/sched/idle.c +++ b/kernel/sched/idle.c @@ -75,7 +75,7 @@ static noinline int __cpuidle cpu_idle_poll(void) void __weak arch_cpu_idle_prepare(void) { } void __weak arch_cpu_idle_enter(void) { } void __weak arch_cpu_idle_exit(void) { } -void __weak arch_cpu_idle_dead(void) { } +void __weak arch_cpu_idle_dead(void) { while (1); } void __weak arch_cpu_idle(void) { cpu_idle_force_poll = 1;