From patchwork Tue Feb 13 16:32:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 872960 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zgp3J75T1z9t3C for ; Wed, 14 Feb 2018 03:32:12 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965133AbeBMQcK (ORCPT ); Tue, 13 Feb 2018 11:32:10 -0500 Received: from mga11.intel.com ([192.55.52.93]:28330 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965107AbeBMQcI (ORCPT ); Tue, 13 Feb 2018 11:32:08 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Feb 2018 08:32:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,508,1511856000"; d="scan'208";a="27462686" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga003.jf.intel.com with ESMTP; 13 Feb 2018 08:32:04 -0800 Received: by black.fi.intel.com (Postfix, from userid 1001) id A84C917D; Tue, 13 Feb 2018 18:32:00 +0200 (EET) From: Mika Westerberg To: Bjorn Helgaas , "Rafael J. Wysocki" Cc: Len Brown , Mario.Limonciello@dell.com, Michael Jamet , Yehezkel Bernat , Mika Westerberg , linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH 5/5] ACPI / hotplug / PCI: Mark stale PCI devices disconnected Date: Tue, 13 Feb 2018 19:32:00 +0300 Message-Id: <20180213163200.8787-6-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20180213163200.8787-1-mika.westerberg@linux.intel.com> References: <20180213163200.8787-1-mika.westerberg@linux.intel.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Following PCIehp mark the unplugged PCI devices disconnected. This makes sure PCI core code leaves the now missing hardware registers alone. Signed-off-by: Mika Westerberg Reviewed-by: Rafael J. Wysocki --- drivers/pci/hotplug/acpiphp_glue.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 5efa21cdddc9..0aef35ee665a 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -651,6 +651,11 @@ static void trim_stale_devices(struct pci_dev *dev) alive = pci_device_is_present(dev); if (!alive) { + pci_dev_set_disconnected(dev, NULL); + if (pci_has_subordinate(dev)) + pci_walk_bus(dev->subordinate, pci_dev_set_disconnected, + NULL); + pci_stop_and_remove_bus_device(dev); if (adev) acpi_bus_trim(adev);