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 F16E8C4332F for ; Fri, 25 Nov 2022 06:34:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229631AbiKYGdH (ORCPT ); Fri, 25 Nov 2022 01:33:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229653AbiKYGdF (ORCPT ); Fri, 25 Nov 2022 01:33:05 -0500 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1EDE28711 for ; Thu, 24 Nov 2022 22:33:03 -0800 (PST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 4FA8421ABF; Fri, 25 Nov 2022 06:33:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1669357982; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=sjhgFpq3nYstNjfYRzieZLbVirxwSh2gasV8m6EaAKQ=; b=WDct/+NCNMhDQE3uXaBL1eSMquJ+aAJ6SOdEfs5IVwH8j5P+SVyd/tSR+tBqNwQ3iidDPA qPLL8VKJZ6WUWyuleQ3KgkLtaxQHEHncfn9DIQ4xJeQ4EfmNCi9HqoUZ/c1BxcyVk5gkh2 WQGx86OgKF1EFuwnDxgcDw86HtASnuk= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id E857813A08; Fri, 25 Nov 2022 06:33:01 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id pwBBN51hgGNAcgAAMHmgww (envelope-from ); Fri, 25 Nov 2022 06:33:01 +0000 From: Juergen Gross To: linux-kernel@vger.kernel.org, x86@kernel.org Cc: Juergen Gross , Boris Ostrovsky , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Josh Poimboeuf , Peter Zijlstra , xen-devel@lists.xenproject.org Subject: [PATCH 2/2] x86/xen: mark xen_pv_play_dead() as __noreturn Date: Fri, 25 Nov 2022 07:32:48 +0100 Message-Id: <20221125063248.30256-3-jgross@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20221125063248.30256-1-jgross@suse.com> References: <20221125063248.30256-1-jgross@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Mark xen_pv_play_dead() and related to that xen_cpu_bringup_again() as "__noreturn". Signed-off-by: Juergen Gross --- arch/x86/xen/smp.h | 2 +- arch/x86/xen/smp_pv.c | 4 ++-- tools/objtool/check.c | 1 + 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/xen/smp.h b/arch/x86/xen/smp.h index 6e90a312067b..22fb982ff971 100644 --- a/arch/x86/xen/smp.h +++ b/arch/x86/xen/smp.h @@ -21,7 +21,7 @@ void xen_smp_send_reschedule(int cpu); void xen_smp_send_call_function_ipi(const struct cpumask *mask); void xen_smp_send_call_function_single_ipi(int cpu); -void xen_cpu_bringup_again(unsigned long stack); +void __noreturn xen_cpu_bringup_again(unsigned long stack); struct xen_common_irq { int irq; diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c index b40b24382fe3..5801f93d567c 100644 --- a/arch/x86/xen/smp_pv.c +++ b/arch/x86/xen/smp_pv.c @@ -381,7 +381,7 @@ static void xen_pv_cpu_die(unsigned int cpu) } } -static void xen_pv_play_dead(void) /* used only with HOTPLUG_CPU */ +static void __noreturn xen_pv_play_dead(void) /* used only with HOTPLUG_CPU */ { play_dead_common(); HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(smp_processor_id()), NULL); @@ -400,7 +400,7 @@ static void xen_pv_cpu_die(unsigned int cpu) BUG(); } -static void xen_pv_play_dead(void) +static void __noreturn xen_pv_play_dead(void) { BUG(); } diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 43ec14c29a60..becdedc2de99 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -189,6 +189,7 @@ static bool __dead_end_function(struct objtool_file *file, struct symbol *func, "snp_abort", "stop_this_cpu", "usercopy_abort", + "xen_cpu_bringup_again", "xen_start_kernel", }; -- 2.35.3