From patchwork Thu Apr 18 13:53:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 790091 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3D76515AAA4; Thu, 18 Apr 2024 13:55:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713448519; cv=none; b=bM/c9ffPgNXAUnZeRDO0t53PtD5YzFmK2uJ19sK8L4dJXa0Tx5v+HF/gsb/nDpksk1RLYVETqwA5CXX+m6fAKNJYM3aQyeCb+K2sMGt73vbXPnzvdtIScry6r8jzg/FhHbSTPpCPV7Rt9TfBlBouGACtsgi76oGf/O8reG3Uj1I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713448519; c=relaxed/simple; bh=8YdjqTW5LrOhh9bRGI4v7+bpk8jGAptG3mXdXeuigWw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=n4EDy+XTgvu9ywRkSXm1T5bDEGz164uLhmYePSa+KLEj8/Ktb58jjWFqwAeH/QjuJH/7LBC5WwI5wYUSHtob4lO4+ME564pHWcLScqEEN7iCsyCYX2pbqVIUyj1iX+LtOh9AYefyH3kYK0hH+Jr9wz+lOYVsHwXqt1B5Adc9Suc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.186.31]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4VKzkc2JbSz6D94x; Thu, 18 Apr 2024 21:53:12 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (unknown [7.191.163.240]) by mail.maildlp.com (Postfix) with ESMTPS id 8CC601406AC; Thu, 18 Apr 2024 21:55:15 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Thu, 18 Apr 2024 14:55:14 +0100 From: Jonathan Cameron To: Thomas Gleixner , Peter Zijlstra , , , , , , , , , Russell King , "Rafael J . Wysocki" , Miguel Luis , James Morse , Salil Mehta , Jean-Philippe Brucker , Catalin Marinas , Will Deacon CC: Ingo Molnar , Borislav Petkov , Dave Hansen , , , Subject: [PATCH v7 02/16] cpu: Do not warn on arch_register_cpu() returning -EPROBE_DEFER Date: Thu, 18 Apr 2024 14:53:58 +0100 Message-ID: <20240418135412.14730-3-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240418135412.14730-1-Jonathan.Cameron@huawei.com> References: <20240418135412.14730-1-Jonathan.Cameron@huawei.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: lhrpeml100002.china.huawei.com (7.191.160.241) To lhrpeml500005.china.huawei.com (7.191.163.240) For arm64 the CPU registration cannot complete until the ACPI interpreter us up and running so in those cases the arch specific arch_register_cpu() will return -EPROBE_DEFER at this stage and the registration will be attempted later. Suggested-by: Rafael J. Wysocki Acked-by: Rafael J. Wysocki Signed-off-by: Jonathan Cameron Reviewed-by: Hanjun Guo --- v7: Fix condition to not print the error message of success (thanks Russell!) --- drivers/base/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 56fba44ba391..7b83e9c87d7c 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -558,7 +558,7 @@ static void __init cpu_dev_register_generic(void) for_each_present_cpu(i) { ret = arch_register_cpu(i); - if (ret) + if (ret && ret != -EPROBE_DEFER) pr_warn("register_cpu %d failed (%d)\n", i, ret); } }