From patchwork Mon Feb 10 06:55:31 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kazuhiro Hayashi X-Patchwork-Id: 13967350 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 aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8951DC021A4 for ; Mon, 10 Feb 2025 06:56:45 +0000 (UTC) Received: from mo-csw.securemx.jp (mo-csw.securemx.jp [210.130.202.132]) by mx.groups.io with SMTP id smtpd.web11.45204.1739170602415473968 for ; Sun, 09 Feb 2025 22:56:42 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=kazuhiro3.hayashi@toshiba.co.jp header.s=key2.smx header.b=AnC3Hm5Y; spf=pass (domain: toshiba.co.jp, ip: 210.130.202.132, mailfrom: kazuhiro3.hayashi@toshiba.co.jp) DKIM-Signature: v=1;a=rsa-sha256;c=relaxed/simple;d=toshiba.co.jp;h=From:To:Cc :Subject:Date:Message-Id:In-Reply-To:References;i= kazuhiro3.hayashi@toshiba.co.jp;s=key2.smx;t=1739170575;x=1740380175;bh=oeSTV 1dI+T8GrwEAkCPvGHesDTdealGcRC8KdexYD5I=;b=AnC3Hm5Y9xk8JXuJN1dIXHrxvS428YIDA5X HWM0a1+I4rouWYEJpr/xRVuiBjunane+Ja9ZOy+ytmw7+TxD4zJkVN/Z50cTkjbRJPDaBd29ysmyn CRRZLzuO1drzVvDKlRsM5AhX/RS/3S22xaF+wL90RfFL0IqCe9JQ4xPpvxB5coy/XFgOQmacv1qeg zVL2WA4GCXdc2h2n8aBT1/w0K9mOXhJK6BL1lTShMAzJAznbf+3y8/+psQaN7+icFG1x7KAD54RST DGrmdPrK0oyqKPp8/Y28QrtnJURMyRQPCYOQkfeCDfqJs3lQanb+Jx7qh0rjRtStkXCdS1wQm7bA= =; Received: by mo-csw.securemx.jp (mx-mo-csw1121) id 51A6uFb13832482; Mon, 10 Feb 2025 15:56:15 +0900 X-Iguazu-Qid: 2rWhSHZE3yt6r0xIbx X-Iguazu-QSIG: v=2; s=0; t=1739170569; q=2rWhSHZE3yt6r0xIbx; m=Y0hJNGDdcj4uKOoeojwG12+1jPvQ2I44K5L5a9Bg+kc= Received: from imx12-a.toshiba.co.jp ([38.106.60.135]) by relay.securemx.jp (mx-mr1122) id 51A6u6tX182804 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 10 Feb 2025 15:56:07 +0900 From: Kazuhiro Hayashi To: linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, cip-dev@lists.cip-project.org Cc: bigeasy@linutronix.de, tglx@linutronix.de, rostedt@goodmis.org, linux-rt-users@vger.kernel.org, pavel@denx.de Subject: [PATCH 4.4 v1 03/17] arm64: Adjust system_state check Date: Mon, 10 Feb 2025 15:55:31 +0900 X-TSB-HOP2: ON Message-Id: <1739170545-25011-4-git-send-email-kazuhiro3.hayashi@toshiba.co.jp> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1739170545-25011-1-git-send-email-kazuhiro3.hayashi@toshiba.co.jp> References: <1739170545-25011-1-git-send-email-kazuhiro3.hayashi@toshiba.co.jp> List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Mon, 10 Feb 2025 06:56:45 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/17790 From: Thomas Gleixner commit ef284f5ca5f102bf855e599305c0c16d6e844635 upstream. 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 smp_send_stop() to handle the extra states. Conflicts: arch/arm64/kernel/smp.c 82611c14 moves per-CPU stop message from ipi_cpu_stop() to smp_send_stop(), but no change in checking system_state condition. Apply the change to ipi_cpu_stop() instead. Tested-by: Mark Rutland Signed-off-by: Thomas Gleixner Signed-off-by: Peter Zijlstra (Intel) Acked-by: Mark Rutland Acked-by: Catalin Marinas Cc: Greg Kroah-Hartman Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Will Deacon Link: http://lkml.kernel.org/r/20170516184735.112589728@linutronix.de Signed-off-by: Ingo Molnar Signed-off-by: Kazuhiro Hayashi --- arch/arm64/kernel/smp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 36182dafd63c..9b21b6ccc3f1 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -685,8 +685,7 @@ 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();