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 C3C60C61DA4 for ; Fri, 3 Feb 2023 22:05:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233930AbjBCWFx (ORCPT ); Fri, 3 Feb 2023 17:05:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233894AbjBCWFs (ORCPT ); Fri, 3 Feb 2023 17:05:48 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3DB0991CB; Fri, 3 Feb 2023 14:05:47 -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 50EC2B82C2C; Fri, 3 Feb 2023 22:05:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31D78C433A4; Fri, 3 Feb 2023 22:05:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1675461944; bh=jwTvhfv5jui0rr++LUZmPhaoB7Jg1TFf9qG4O7JtMhQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Cnpsd3/vIh8cHXwxClTdwl8BAQrgBFDXI4Y6Wl3Yb8uKzKrXFmQjf4bLTlNruFSiS qCw5Tpiq0hGpIKAA9/3qXe8LcDIqt+HCuF23fCoKLHz2nfcNB+D+KHlrgpbh1U43BD pNBum+Kt2hjbGzQLzCB6YyRpQ9i7GLAoTP+jIcII2BpDc7lxQXJkdYAl8BjjAxWWgH vPRzYJ9cYKNr4qu0wK5oRu28WzJ1AZPjIEQJEuuC7Tw5qVQ5zZYaRMYRLjPSmjNcm2 38kusvC4L8FnSTzlZ9mjTaLmjfcLnDzYkadBZuZ4/c+gcGOlxpmeKS17HnHSBp6y7I T1Tc3i1z5DTLw== 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 02/22] alpha/cpu: Make sure arch_cpu_idle_dead() doesn't return Date: Fri, 3 Feb 2023 14:05:11 -0800 Message-Id: <543dffab94755ae8460b22e273213cbb9a72a173.1675461757.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() doesn't return. Make that more explicit with a BUG(). BUG() is preferable to unreachable() because BUG() is a more explicit failure mode and avoids undefined behavior like falling off the edge of the function into whatever code happens to be next. Signed-off-by: Josh Poimboeuf --- arch/alpha/kernel/process.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 4813172547b5..94938f856545 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -63,6 +63,7 @@ void arch_cpu_idle(void) void arch_cpu_idle_dead(void) { wtint(INT_MAX); + BUG(); } #endif /* ALPHA_WTINT */ -- 2.39.0