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 B2B0AC636CC for ; Fri, 3 Feb 2023 22:08:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234133AbjBCWIx (ORCPT ); Fri, 3 Feb 2023 17:08:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232978AbjBCWIJ (ORCPT ); Fri, 3 Feb 2023 17:08:09 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53F96A77BC; Fri, 3 Feb 2023 14:06:32 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 33CE562033; Fri, 3 Feb 2023 22:06:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DBA2EC433D2; Fri, 3 Feb 2023 22:06:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1675461980; bh=cvjRNwH2kRiWR8c5UNqBmClynEmYqcho7035VrMra1c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mzBDKmAx5z+R9uqapSiL6Cn1VpVHH7drD5XxGu9fuiYmqLWPLl1KOVTTd69GQOZd5 ARPsyjFCWJ2cab/VUgVf5aLu2kjehWHFLflwHnpV4ETtShxVzGqPJj3jYZnAXjZ6vZ ILdvD+LHRKRK52SNwHW1v5UeCOq0Mb/aTdvnASi6K9qK4VC6gz7+t8xuKUqURMG9ry A57A0tZJ6+ElGZjnAGmS3t0NQQ386BYUrN/eXS2nP/L90dcie8kCbHpV4WPfJtZW6M Rqh4LPiEGX0Wb2TD086V1ccTZQJggpkhl/Zc5pAPnq0twHUFHirhVfRcjsHHRHfB30 nNVhfg+wbZp4A== From: Josh Poimboeuf 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 21/22] sched/idle: Make sure weak version of arch_cpu_idle_dead() doesn't return Date: Fri, 3 Feb 2023 14:05:30 -0800 Message-Id: <52f887a01f8ee38fb710c915c1a3205983563736.1675461757.git.jpoimboe@kernel.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: References: MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-csky@vger.kernel.org arch_cpu_idle_dead() should never return. Make it so. Signed-off-by: Josh Poimboeuf --- 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; -- 2.39.0