From patchwork Tue May 16 18:42:33 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 9729541 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F3DCF60386 for ; Tue, 16 May 2017 18:53:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E5B51286CB for ; Tue, 16 May 2017 18:53:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DA1DA28972; Tue, 16 May 2017 18:53:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 43FF7286CB for ; Tue, 16 May 2017 18:53:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:Subject:To:From :Date:Message-Id:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: List-Owner; bh=QDPlDWZpLFzkEkvYWYxrGYx0GbQIlaN+A6wo2eL1jus=; b=c/k2MXM+ayoDUf 1J0mLG+B+rXBZNpdl9tbaSQjzguiruDKINXTBojpw01EZtM+UFVSv2ImloPooLNOE1772fhq9ScsJ tllxxeJ7ZUXius0jnpQGN7a1dDx652EWxCcrw151fhMamYv0T7xGrocL2QWJ7DR8RwbwKilXm4COy koSFf45d/v64gWKZVpmA/NDpuBAJpSXhDGqVs4Pwi2K/cCT6dkapxtKGnwCZgvyURtCRM65QGPqsM dRVq71fjiOe2f8lcumZT3nZaoyeIX/INIRzq8q+S06UemE6cX56vVcDA6eIbibqU1binT6ufmBFjb kOKFnjBIkpwFrAa6WWXA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dAhaz-0007AO-9C; Tue, 16 May 2017 18:53:21 +0000 Received: from galois.linutronix.de ([2a01:7a0:2:106d:700::1]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dAhal-0006tF-QT for linux-arm-kernel@lists.infradead.org; Tue, 16 May 2017 18:53:09 +0000 Received: from localhost ([127.0.0.1] helo=[127.0.1.1]) by Galois.linutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1dAhZb-0000fN-VS; Tue, 16 May 2017 20:51:56 +0200 Message-Id: <20170516184735.020718977@linutronix.de> User-Agent: quilt/0.63-1 Date: Tue, 16 May 2017 20:42:33 +0200 From: Thomas Gleixner To: LKML Subject: [patch V2 02/17] arm: Adjust system_state check References: <20170516184231.564888231@linutronix.de> MIME-Version: 1.0 Content-Disposition: inline; filename=arm--Adjust-system_state-check.patch X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170516_115308_008868_83592D5C X-CRM114-Status: GOOD ( 10.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Peter Zijlstra , Greg Kroah-Hartman , Russell King , Steven Rostedt , Ingo Molnar , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP To enable smp_processor_id() and might_sleep() debug checks earlier, it's required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING. Adjust the system_state check in ipi_cpu_stop() to handle the extra states. Signed-off-by: Thomas Gleixner Cc: Russell King Cc: linux-arm-kernel@lists.infradead.org --- arch/arm/kernel/smp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -555,8 +555,7 @@ static DEFINE_RAW_SPINLOCK(stop_lock); */ static void ipi_cpu_stop(unsigned int cpu) { - if (system_state == SYSTEM_BOOTING || - system_state == SYSTEM_RUNNING) { + if (system_state <= SYSTEM_RUNNING) { raw_spin_lock(&stop_lock); pr_crit("CPU%u: stopping\n", cpu); dump_stack();